Mapping of Italian research excellence in Neurodegenerative - Apre
Mapping of Italian research excellence in Neurodegenerative - Apre
Mapping of Italian research excellence in Neurodegenerative - Apre
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<strong>Mapp<strong>in</strong>g</strong> <strong>of</strong> <strong>Italian</strong><br />
<strong>research</strong> <strong>excellence</strong> <strong>in</strong><br />
<strong>Neurodegenerative</strong><br />
Diseases
1. MECHANISMS OF NEURODEGENERATION<br />
A. Macromolecular <strong>in</strong>teractions and Neurodegeneration<br />
1. Public health. Therapeutic strategies for the<br />
prevention and tratment <strong>of</strong> neurodegenerative<br />
disease. Molecular basis <strong>of</strong> amyloid aggregation<br />
2. Prote<strong>in</strong> conformational transitions that trigger the<br />
aggregation processes associated to<br />
neurodegenerative diseases : a nanotechnological<br />
approach<br />
Pier Luigi San Biagio<br />
pierluigi.sanbiagio@pa.ibf.cnr.it<br />
Bruno Samorì<br />
bruno.samori@unibo.it<br />
3. Myel<strong>in</strong> prote<strong>in</strong>s and demyel<strong>in</strong>at<strong>in</strong>g deseases Eugenia Polver<strong>in</strong>i<br />
eugenia.polver<strong>in</strong>i@unipr.it<br />
4. Conformational transitions <strong>of</strong> prote<strong>in</strong>s from native Maria Grazia Bridelli<br />
to amyloid form<br />
mariagrazia.bridelli@unipr.it<br />
5. Role <strong>of</strong> altered composition <strong>of</strong> plasma membrane Sandro Sonn<strong>in</strong>o<br />
complex lipids <strong>in</strong> lipid-prote<strong>in</strong> <strong>in</strong>teractions,<br />
membrane organization and neurodegeneration<br />
Sandro.sonn<strong>in</strong>o@unimi.it<br />
6. Alterations <strong>of</strong> proteolytic pathways <strong>in</strong><br />
Angelo Poletti<br />
neurodegenerative diseases"<br />
Angelo.poletti@unimi.it<br />
7. Optical and biomolecular methods for the<br />
Antonio Malgaroli<br />
functional <strong>in</strong>vestigation <strong>of</strong> neural circuits <strong>in</strong> vivo Antonio.malgaroli@hsr.it<br />
Gian Giacomo Consalez<br />
Giacomo.consalez@hsr.it<br />
8. Molecular mechanisms <strong>in</strong> neurotransmission: Flavia Valtorta<br />
effects <strong>in</strong> neuron and glia phenotypes <strong>in</strong> synaptic<br />
efficiency and synapropathy<br />
Valtorta.flavia@hsr.it<br />
9. Presynaptic molecular mach<strong>in</strong>ery regulationg Maurizio Popoli<br />
glutamate release an pathophysiological<br />
mechanism <strong>in</strong> amyotrophic lateral sclerosis<br />
Maurizio.popoli@unimi.it<br />
10. Toward exploit<strong>in</strong>g the screen<strong>in</strong>g potential <strong>of</strong> Daniela Tardito<br />
miRNome for the identification <strong>of</strong> genes and<br />
pathways <strong>in</strong>volved <strong>in</strong> neurodegenerative disorders<br />
Daniela.tardito@unimi.it<br />
11. Identification <strong>of</strong> signal<strong>in</strong>g pathways <strong>in</strong><br />
Maria Penuto<br />
neurodegenerative prote<strong>in</strong>opathies<br />
Maria .pennuto@iit.it<br />
12. Neurotens<strong>in</strong> and neurotens<strong>in</strong> antagonists <strong>in</strong> an Tanganelli Sergio<br />
animal model <strong>of</strong> Park<strong>in</strong>son disease: therapeutic<br />
perspectives and role <strong>of</strong> NMDA/neurotens<strong>in</strong><br />
<strong>in</strong>teraction.<br />
tgs@unife.it<br />
B. Neurotoxic stimuli<br />
1. CSF Glycomics <strong>in</strong> AD and other neurodegenerative<br />
disease<br />
2. Intracellular signall<strong>in</strong>g dur<strong>in</strong>g neurodegenerative<br />
events triggered upon APP overexpression<br />
3. Effect <strong>of</strong> Age and neurodegenerative disorders <strong>in</strong><br />
central neurotrasmission: focus on neurotrasmitter<br />
relase from neuron and glia<br />
Domenico Garozzo<br />
domenico.garozzo@cnr.it<br />
Maurizio Taglialatela<br />
m.taglialatela@unimol.it<br />
Claudio Russo<br />
claudio.russo@unimol.it<br />
Mario Marchi<br />
marchi@pharmatox.unige.it
4. Develop<strong>in</strong>g competitive <strong>in</strong> “ vitro” and “vivo”<br />
models to study Alzheimer’s disease<br />
5. Evaluation <strong>of</strong> mesenchymal stell cells (MSCs) effect<br />
<strong>in</strong> Alzheimer’s disease rat models competitive <strong>in</strong> “<br />
vitro” and “vivo” studies<br />
6. New Tratment strategies (Neurodegeneration and<br />
Neuroprotection)<br />
7. Pathways lead<strong>in</strong>g to tau pathology – Role <strong>of</strong> nuclear<br />
tau <strong>in</strong> neurodegeneration <strong>in</strong> fronto-temporal<br />
dementia<br />
8. Cholesterol and amyloid-beta: is there a relation?<br />
- Specific type 4 phosphodiestrerase <strong>in</strong>hibitors and<br />
their impact on the production <strong>of</strong> amyloid-beta<br />
- Cholesterol and amyloid-beta: is there a relation?<br />
- Role <strong>of</strong> non muscle myos<strong>in</strong> IIB <strong>in</strong> the process<strong>in</strong>g <strong>of</strong><br />
the amyloid precursor prote<strong>in</strong> (APP)<br />
9. Basic <strong>research</strong><br />
- Genetic susceptibility to Alzheimer disease and<br />
genome wide association studies<br />
- Biobank<strong>in</strong>g<br />
Francesca Ruberti<br />
f.ruberti@<strong>in</strong>mm.cnr.it<br />
Mariarosaria Miloso<br />
mariarosaria.miloso@unimib.it<br />
Patrizia Hrelia<br />
Patrizia.hrelia@unibo.it<br />
Fabrizio Tagliav<strong>in</strong>i<br />
ftagliav<strong>in</strong>i@istituto-besta.it<br />
Roberta Ricciarelli<br />
ricciarelli@medic<strong>in</strong>a.unige.it<br />
Dario F<strong>in</strong>azzi<br />
f<strong>in</strong>azzi@med.unibs.it<br />
10. Neurotoxic stimuli, synaptic dysfunction Calro Sala<br />
c.sala@<strong>in</strong>.cnr.it<br />
11. Neuroprotection by chemok<strong>in</strong>es Crist<strong>in</strong>a Limatola<br />
Crist<strong>in</strong>a.limatola@uniroma1.it<br />
12. Phatogenesis and therapeutic targets for SBMA Fabio Benfenati – Mara Pennuto – Chiara<br />
Scaramuzz<strong>in</strong>o<br />
Fabio.benfenati@iit.it<br />
13. Malattia di Alzheimer e trasduzione del segnale Armando Genazzani<br />
legata al calcio<br />
14. Mechanisms <strong>of</strong> neurodegeneration and<br />
enhancement <strong>of</strong> adult neurogenesis to improve<br />
cognitive functions <strong>in</strong> down syndrome<br />
15. Pathological mechanisms <strong>of</strong> neurodegeneration<br />
triggered by tau and beta-amyloid<br />
genazzani@pharm.unipmn.it<br />
Andrea Contestabile<br />
Andrea.contestabile@iit.it<br />
Laura Gaspar<strong>in</strong>i<br />
Laura.gaspar<strong>in</strong>i@iit.it<br />
16. Oxidative stress and neurodegeneration Michele Mazzanti<br />
Michele.mazzanti@unimi.it<br />
C. Neuro <strong>in</strong>flammation<br />
1. Role <strong>of</strong> vascular <strong>in</strong>flammation and leukocyte Gabriela Constant<strong>in</strong><br />
traffick<strong>in</strong>g <strong>in</strong> neurodegenerative diseases<br />
gabriela.constant<strong>in</strong>@univr.it<br />
2. Regional vulmerability <strong>of</strong> the bra<strong>in</strong> to<br />
Mar<strong>in</strong>a Bentivoglio<br />
neurodegeneration and immune regulatory<br />
mechanisms<br />
mar<strong>in</strong>abentivoglio@univr.it<br />
3. Neurotoxic stimuli: role <strong>of</strong> astrocytes and microglia Michela Matteoli<br />
Michela.matteoli@unimi.it<br />
4. Gender and hormonal/endocr<strong>in</strong>e signals <strong>in</strong> Elisabetta Vegeto<br />
neuro<strong>in</strong>flammation role <strong>in</strong> alzheimer’s disease and Elisabetta.vegeto@unimi.it
a<strong>in</strong> age<strong>in</strong>g<br />
5. Role <strong>of</strong> pro-and anti- <strong>in</strong>flammatory cytok<strong>in</strong>es <strong>in</strong> the<br />
prognosis and progression <strong>of</strong> neurodegenerative<br />
diseases<br />
6. Study <strong>of</strong> the role <strong>of</strong> pro-<strong>in</strong>flammatory chemok<strong>in</strong>es<br />
<strong>in</strong> neuro<strong>in</strong>flammatory disorders and analysis <strong>of</strong> the<br />
therapeutic potential <strong>of</strong> chemok<strong>in</strong>e synthesis<br />
<strong>in</strong>hibitors<br />
7. Role <strong>of</strong> <strong>in</strong>flammation and microglial activation <strong>in</strong><br />
neurodegenerative diseases<br />
8. Role <strong>of</strong> <strong>in</strong>flammation <strong>in</strong> Alzheimer’s disease: study<br />
<strong>of</strong> pro-<strong>in</strong>flammatory cytok<strong>in</strong>es for the identification<br />
<strong>of</strong> new pathogenic and diagnostic targets<br />
D. Oxidative Stress and neurodegeneration<br />
1. Dopam<strong>in</strong>e and oxidative stress <strong>in</strong> the pathogenesis<br />
<strong>of</strong> Park<strong>in</strong>son's disease<br />
2. Mitochondria, apoptosis and neurodegeneration:<br />
characterization <strong>of</strong> mitochondrial dysfunction <strong>in</strong><br />
neurodegenerative diseases<br />
- Characterization <strong>of</strong> the molecular mechanisms<br />
underly<strong>in</strong>g ag<strong>in</strong>g, cell senescence and<br />
neurodegenerative diseases<br />
3. Structural organization <strong>of</strong> the mitochondrial<br />
respiratory cha<strong>in</strong>, generation <strong>of</strong> reactive oxygen<br />
species and neurodegeneration<br />
4. Post-genomic biochemestry <strong>of</strong> neurodegenerative<br />
diseases<br />
Barbara Viviani<br />
Barbara.viviani@unimi.it<br />
Claudio Milanese<br />
c.milanese@angel<strong>in</strong>i.it<br />
Luisa M<strong>in</strong>ghetti<br />
luisa.m<strong>in</strong>ghetti@iss.it<br />
Paola Bossù<br />
p.bossu@hsantalucia.it<br />
Marco Bisaglia<br />
marco.bisaglia@unipd.it<br />
Antonella Bobba<br />
a.bobba@ibbe.cnr.it<br />
Giorgio Lenaz<br />
giorgio.lenaz@unibo.it<br />
Annalisa Santucci<br />
santucci@unisi.it<br />
E. Trophic factors <strong>in</strong>volvement <strong>in</strong> the neurodegeneration<br />
process<br />
F. Endocr<strong>in</strong>e and Metabolic Factors<br />
1. miRNA as sensors <strong>of</strong> neuronal stress and<br />
modulators <strong>of</strong> synaptic plasticità and memory<br />
deficits<br />
2. Develop<strong>in</strong>g competitive animal models to study<br />
Alzheimer’s disease<br />
3. Genetic susceptibility to Alzheimer’s disease (AD)<br />
<strong>in</strong> women: AD as a gender disease<br />
4. Genetic susceptibility to Alzheimer’s disease<br />
(Epigenetic maks <strong>of</strong> susceptibility to Alzheimer<br />
disese)<br />
5. Role <strong>of</strong> altered lipid and cholesterol metabolism <strong>in</strong><br />
neurodegenerations<br />
Paola Fragapane<br />
paola.fragapane@uniroma1.it<br />
Roberto Rimond<strong>in</strong>i<br />
roberto.rimond<strong>in</strong>i@unibo.it<br />
Rosa Maria Corbo<br />
rosamaria.corbo@uniroma1.it<br />
Lucia Migliore<br />
l.migliore@geog.unipi.it<br />
Laura Colombaioni<br />
laura.colombaioni@<strong>in</strong>.cnr.it
6. Role <strong>of</strong> neuroactive steroids <strong>in</strong> the<br />
neurodegeneration process<br />
7. Selective Alzheimer Disease Indicator -1 (Selad<strong>in</strong>ò1):<br />
a liker between cholesterol, oxidative stress<br />
and Alzheimer’s disease<br />
8. Nuclear receptors, coregulators, neuroactive<br />
steroids and epigenetics <strong>in</strong> neurodegenerative<br />
disease associated to metabolic disorders<br />
G. Cell <strong>in</strong>teractions<br />
1. The Astrocyte, not just a Bystander <strong>in</strong> Alzheimer’s<br />
disease<br />
2. Synapse and Amyloid-beta: effects on astrocyte<br />
processes, nerve term<strong>in</strong>als and network synaptic<br />
activity<br />
Roberto Cosimo Melcangi<br />
Roberto.melcangi@unimi.it<br />
Roberto Maggi<br />
Roberto.maggi@unimi.it<br />
Donatella Caruso<br />
Donatella.caruso@unimi.it<br />
Ubaldo Armato<br />
ubaldo.armato@univr.it<br />
Manuela Marcoli<br />
marcoli@pharmatox.unige.it<br />
3. Alzheimer’s disease, Age<strong>in</strong>g Luciano Domenici<br />
domenici@<strong>in</strong>.cnr.it<br />
4. Synaptic deficits <strong>in</strong> neurodegenerative disease Evel<strong>in</strong>a Chieregatti<br />
Evel<strong>in</strong>a.chieregatti@iit.it<br />
H. Intracellular Traffik<strong>in</strong>g<br />
1. Membrane traffic and neurodegenerative diseases: Cecilia Bucci<br />
role <strong>of</strong> Rab prote<strong>in</strong>s and their effectors<br />
cecila.bucci@unisalento.it<br />
2. Basic <strong>research</strong>. <strong>Neurodegenerative</strong> diseases Paolo Macchi<br />
macchi@science.unitn.it<br />
I. Animal models<br />
1. Develop<strong>in</strong>g competitive animal models to study Adalberto Merighi<br />
Alzheimer’s disease<br />
Adalberto.merighi@unito.it<br />
2. Synaptic dysfunction <strong>in</strong> neurodegeneration: Monica DI Luca<br />
characterization <strong>of</strong> gene product <strong>in</strong> functional<br />
synaptic networks under physiological and<br />
patological conditions<br />
monica.diluca@unimi.it<br />
3. Study <strong>of</strong> early onset Alzheimer disease <strong>in</strong> a model Renata Bartesaghi<br />
for Down syndrome, the Ts65Dn mouse<br />
renata.bartesaghi@unibo.it<br />
4. Iron and Neurodegeneration Sonia Levi<br />
Levi.sonia@hsr.it<br />
5. Non neurotoxic activity <strong>of</strong> Beta amyloid <strong>in</strong> animal Stefano Govoni<br />
models<br />
Stefano.govoni@unipv.it<br />
6. Neurochemical and morphological <strong>in</strong> vivo and <strong>in</strong> Tiziana Antonelli<br />
vitro models <strong>in</strong> neurodegenerative diseases. ant@unife.it
2. PHARMACOLOGY<br />
A. Drug Design<br />
1. Elementary mechanisms <strong>of</strong> neurodegenerative<br />
diseases<br />
2. Innovative drug discovery strategies for Alzheimer’s<br />
disease<br />
3. Development <strong>of</strong> ligands specifically target<strong>in</strong>g the<br />
Translocator Prote<strong>in</strong> 18 kDa <strong>in</strong> Alzheimer disease<br />
4. Structural studies <strong>of</strong> acetylchol<strong>in</strong>esterases and their<br />
<strong>in</strong>ibitors: implicantions for the design <strong>of</strong> new antialzheimer<br />
drugs<br />
B. Drug screen<strong>in</strong>g<br />
1. Developemt <strong>of</strong> competitive animal models for AD-<br />
GLP grade animal facility and behavioural test<strong>in</strong>g<br />
2. Yeast model to seek for molecules which can<br />
reduce mitochondrial mutability<br />
3. Innovative technologies for the therapy <strong>of</strong> the<br />
neurodegenerative diseases.<br />
C. Drug Delivery<br />
1. Nanotechnology for health: application <strong>in</strong> the bra<strong>in</strong><br />
diseases<br />
2. Hybrid drug conta<strong>in</strong><strong>in</strong>g reservoirs for long term<br />
release <strong>in</strong> bra<strong>in</strong> diseases<br />
3. New nanodevices target<strong>in</strong>g beta-amyloid and<br />
overcom<strong>in</strong>g the blood-bra<strong>in</strong> barrier for the therapy<br />
<strong>of</strong> Alzheimer disease<br />
D. Novel Drugs<br />
N<strong>in</strong>o Russo<br />
nrusso@unical.it<br />
Carlo Melchiorre<br />
Carlo.melchiorre@unibo.it<br />
Federico Da Settimo<br />
fsettimo@farm.unipi.it<br />
Alberto Cassetta<br />
Alberto.cassetta@ts.ic.cnr.it<br />
Laura Calzà<br />
laura.calza@unibo.it<br />
Iliana Ferrero Fortunati<br />
iferrero@unipr.it<br />
Luca Ferraro<br />
frl@unife.it<br />
MA Vandelli<br />
Giovanni Tosi<br />
gtosi@unimore.it<br />
Angelo Montenero<br />
angelo.montenero@unipr.it<br />
Massimo Masser<strong>in</strong>i<br />
massimo.masser<strong>in</strong>i@unimib.it<br />
1. Lamberto Maffei<br />
maffei@<strong>in</strong>.cnr.it<br />
2. Synthesis and screen<strong>in</strong>g <strong>of</strong> new AChE/BuChE Aldo Andreani<br />
<strong>in</strong>hibitors<br />
Aldo.andreani@unibo.it<br />
3. Drug design and synthesis <strong>of</strong> therapeutic agent for Olga Bruno<br />
neurodegenerative disorders, particularly for<br />
Alzheimer disease<br />
obruno@unige.it<br />
4. Development <strong>of</strong> a novel therapeutic strategy for AD Fabrizio Tagliav<strong>in</strong>i<br />
based on a natural variant <strong>of</strong> amyloid beta that ftagliav<strong>in</strong>i@istituto-besta.it
h<strong>in</strong>ders amyloidogenesis<br />
5. Second generation recomb<strong>in</strong>ant Abeta peptide<br />
immunogens as prototype vacc<strong>in</strong>es for AD<br />
treatment<br />
Simone Ottonello<br />
s.ottonello@unipr.it<br />
6. Pediatric neurodegenerative diseases Maurizio Scarpa<br />
maurizio.scarpa@unipd.it<br />
7. Ocular NGF adm<strong>in</strong>istration as a novel non <strong>in</strong>vasive Paola Tirassa<br />
approach to protect bra<strong>in</strong>-NGF target neurons that p.tirassa@<strong>in</strong>mm.cnr.it<br />
degenerative <strong>in</strong> Alzheimer’s disease<br />
8. New symptomatic and neuroprotective terapie for Micaela Morelli<br />
park<strong>in</strong>sons’s disease<br />
morelli@unica.it<br />
9. Innovative neuro-reparative strategies via the Maria Pia Abbracchio<br />
implementation <strong>of</strong> endogenous neurogenesis and Mariapia.abbracchio@unimi.it<br />
gliogenesis: focus on the new P2Y-like GPR17<br />
receptor<br />
10. Pharmacological modulation <strong>of</strong> adult neurogenesis Maria Grazia Grilli<br />
grilli@pharm.unipmn.it<br />
11. Study <strong>of</strong> the relationship between the<br />
Fabrizio Chiti<br />
structure/morphology <strong>of</strong> amyloid beta peptide Fabrizio.chiti@unifi.it<br />
aggregates and their toxicity <strong>in</strong> cellular, neuronal<br />
and animal models"<br />
E. Non-Pharmacological Therapies<br />
1. Psychoeducational <strong>in</strong>tervention for patients and<br />
care givers <strong>in</strong> ParK<strong>in</strong>son’s Disease and other<br />
neurodegenerative diseases.<br />
Pio Enrico Ricci Bitti<br />
pioenrico.riccibitti@unibo.it<br />
2. Physical excercise and cognitive decl<strong>in</strong>e Maurizio Taglialatela<br />
m.taglialatela@unimol.it<br />
Alfonso Di Costanzo<br />
3. New tratment strategies (non pharmacologic<br />
therapeutic strategies <strong>in</strong> neurodegenerative<br />
diseases)<br />
4. Non <strong>in</strong>vasive bra<strong>in</strong> stimulation an <strong>in</strong>tegrated<br />
approach to neurorehabilitation <strong>in</strong> Alzheimer<br />
disease<br />
5. Early cognitive and electroencephalographic<br />
markers <strong>of</strong> normal and pathological age<strong>in</strong>g<br />
6. Transplantation <strong>of</strong> iPS-derived dopam<strong>in</strong>ergic<br />
neurons for cell replacement <strong>in</strong> Park<strong>in</strong>son's disease<br />
7. Neural re generation <strong>in</strong> the cerebellum:<br />
development <strong>of</strong> cell replacement strategies for the<br />
management <strong>of</strong> sp<strong>in</strong>ocerebellar ataxias<br />
8. Physical activity programs for elderly subjects with<br />
different grades <strong>of</strong> cognitive impairment<br />
9. Promotion <strong>of</strong> Adapted Motor Activity among<br />
patients with Park<strong>in</strong>son’s disease<br />
Alfonso.dicostanzo@unimol.it<br />
Andrea Stracciari<br />
andrea.stracciari@aosp.bo.it<br />
Orazio Zanetti<br />
ozanetti@fatebenefratelli.it<br />
Patrizia Bisiacchi<br />
patrizia.bisiacchi@unipd.it<br />
Vania Broccoli<br />
Broccoli.vania@hsr.it<br />
Gian Giacomo Consalez<br />
Giacomo.comsalez@hsr.it<br />
Ferd<strong>in</strong>ando Rossi<br />
Ferdianando.rossi@unito.it<br />
Federico Schena<br />
Federico.schena@univr.it<br />
Enrico Granieri<br />
Enrico.granieri@unife.it<br />
patrik.fazio@unife.it<br />
g<strong>in</strong>o.granieri@unife.it
10. New treatment strategies <strong>in</strong> <strong>Neurodegenerative</strong><br />
diseases with Deep bra<strong>in</strong> Stimulation<br />
F. Drug Pharmacogenetics<br />
1. Role <strong>of</strong> pharmacogenetics to identify the<br />
personalized treatment <strong>of</strong> dementia and<br />
depression.<br />
G. Cl<strong>in</strong>ical studies<br />
Mariachiara Sensi<br />
mchiasen@gmail.com<br />
Alberto Pilotto<br />
Alberto.pilotto@operapadrepio.it<br />
1. Neurocognition <strong>in</strong> Alzheimer Disease Carlo Caltagirone<br />
c.caltagirone@hsantalucia.it<br />
3. HUMAN/CLINICAL RESEARCH<br />
A. Human –epidemiology/risk factors<br />
1. Pathogenic mechanisms, early diagnosis and<br />
prevention <strong>of</strong> neurodegenerative diseases<br />
follow<strong>in</strong>g pesticide <strong>in</strong>take <strong>in</strong> animal model<br />
2. Effects <strong>of</strong> traffic-related particulate matter on<br />
transcription <strong>of</strong> genes implicated <strong>in</strong><br />
neurodegeneration<br />
Gabbianelli Rosita – C<strong>in</strong>zia Nasuti<br />
rosita.gabbianelli@unicam.it<br />
Micaela Caserta<br />
micaela.caserta@uniroma1.it<br />
3. Cronobiology and neurodegeneration Valerio Carelli<br />
Valerio.carelli@unibo.it<br />
chiaralamorgia@gmail.com<br />
4. Gene-metal <strong>in</strong>teraction as determ<strong>in</strong>ant <strong>of</strong><br />
Roberto Lucch<strong>in</strong>i<br />
neurodegenerative diseases<br />
lucch<strong>in</strong>i@med.unibs.it<br />
5. Us<strong>in</strong>g prevention to reduce the burden <strong>of</strong><br />
Stefano Mattioli<br />
Alzheimer’s disease<br />
6. Construction and development <strong>of</strong> "Alzheimer-Web-<br />
GIS".<br />
Geographical correlation between Alzheimer's<br />
disease and environmental parameters. Method for<br />
mapp<strong>in</strong>g population-based case-control studies.<br />
7. Prospective evaluation <strong>of</strong> biomarkers <strong>of</strong><br />
<strong>in</strong>flammation <strong>in</strong> Mild Cognitive Impairment<br />
subtypes, and their role <strong>in</strong> the conversion from<br />
cognitive impairment to dementia and Alzheimer's<br />
disease<br />
8. Epidemiology and risk factors for Mild Cognitive<br />
Impairment, Alzheimer's disease and dementia.<br />
Population-based 7-year follow-up study.<br />
s.mattioli@unibo.it<br />
Giuseppe Mele<br />
Giuseppe.mele@unisalento.it<br />
Calogero Caruso<br />
immunopatologia@unipa.it<br />
Roberto Monastero<br />
Roberto.monastero@ki.se<br />
9. [moved to B.5 Epidemiology genetics] Emilio Di Maria<br />
Emilio.dimaria@unige.it<br />
10. Precl<strong>in</strong>ical Diagnosis Carlo Caltagirone<br />
c.caltagirone@hsantalucia.it<br />
11. Interactions between the products <strong>of</strong> the Herpes Manservigi Roberto
simplex genome and Alzheimer's disease<br />
susceptibility genes<br />
B. Epidemiology genetics<br />
1. Genetic susceptibility to Alzheimer’s disease and<br />
genome wide association studies<br />
2. Genetic susceptibility to Alzheimer’s disease:<br />
biobank<strong>in</strong>g<br />
Roberto.manservigi@unife.it<br />
Luisa Benussi<br />
lbenussi@fatebenefratelli.it<br />
Maria Del Zompo<br />
delzompo@unica.it<br />
C. Biomarkers and early diagnosis and imag<strong>in</strong>g<br />
1. Plasma biomarkers <strong>of</strong> oxidative stress and<br />
<strong>in</strong>flammation <strong>in</strong> early detection and follow-up <strong>of</strong><br />
dementia.<br />
2. Vitam<strong>in</strong>s and antioxidants <strong>in</strong> ag<strong>in</strong>g and<br />
neurodegenerative diseases.<br />
3. Phenotypic and genotypic markers <strong>of</strong> early<br />
Alzheimer’s disease<br />
4. Prioritization and annotation <strong>of</strong> AD genes, their<br />
variants and their <strong>in</strong>teraction networks<br />
5. Cerebrosp<strong>in</strong>al fluid cytok<strong>in</strong>e and chemok<strong>in</strong>e levels<br />
as potential biomarkers for early diagnosis <strong>of</strong><br />
Alzheimer’s disease<br />
6. Individual evaluation <strong>of</strong> cognitive decl<strong>in</strong>e: def<strong>in</strong>ition<br />
<strong>of</strong> low cost non- <strong>in</strong>vasive exam<strong>in</strong>ation battery and<br />
implementation <strong>of</strong> a predictive algorithm to<br />
identify Mild cognitive impairment<br />
7. Impiego dei markers biologici e neuro radiologici<br />
nella diagnosi differenziale precoce<br />
8. Biomarkers <strong>in</strong> Mild cognitive Impairment: genetics<br />
and biochemical and neuroimag<strong>in</strong>g studies for<br />
early diagnosis.<br />
Patrizia Mecocci<br />
mecocci@unipg.it<br />
Salvatore Monaco<br />
Salvatore.monaco@univr.it<br />
Rita Casadio<br />
casadio@biocomp.unibo.it<br />
Elio Scarp<strong>in</strong>i<br />
elio.scarp<strong>in</strong>i@unimi.it<br />
Paolo Maria Ross<strong>in</strong>i<br />
Paolomaria.ross<strong>in</strong>i@afar.it<br />
Orazio Zanetti<br />
ozanetti@fatebenefratelli.it<br />
Sandro Sorbi<br />
sorbi@unifi.it<br />
9. A multimodality <strong>in</strong>dex for early diagnosis <strong>of</strong> Flavio Nobili<br />
Alzheimer’s disease<br />
flaviomariano.nobili@hsanmart<strong>in</strong>o.liguria.it<br />
10. Lexical semantic skills, APOE and neuroanatomical Paolo Caffarra<br />
substrate <strong>of</strong> semantic memory <strong>in</strong> early diagnosis <strong>of</strong><br />
Alzheimer's disease<br />
Paolo.caffarra@unipr.it<br />
11. Cognitive neuroscience <strong>of</strong> dementia: cl<strong>in</strong>ical and Stefano F. Cappa<br />
theoretical aspect<br />
Cappa.stefano@hsr.it<br />
12. <strong>Mapp<strong>in</strong>g</strong> structural and functional bra<strong>in</strong> network Massimo Filippi<br />
damage <strong>in</strong> neurodegenerative diseases<br />
Filippi.massimo@hsr.it<br />
13. Studies are aimed at <strong>in</strong>vestigat<strong>in</strong>g whit PET the Daniela Perani<br />
bra<strong>in</strong> functional parameters and neurotransmission<br />
systems <strong>in</strong> neurological and psychiatric diseases<br />
Daniela.perani@hsr.it<br />
14. Global proteomics <strong>of</strong> human fibroblast for the Maurizio Popoli<br />
identification <strong>of</strong> early biomarkers for dementia and<br />
Alzheimer’s disease<br />
Maurizio.popoli@unimi.it<br />
15. Park<strong>in</strong>son disease and park<strong>in</strong>sonisms Gianfranco Spalletta<br />
g.spalletta@hsantalucia.it<br />
16. Mild cognitive impairment Gianfranco Spalletta
17. Electrophysiological study <strong>of</strong> striatal physiology <strong>in</strong><br />
normal conditions and experimental park<strong>in</strong>sonism:<br />
use <strong>of</strong> genetic and pathogenetic animal models<br />
18. Celebrosp<strong>in</strong>al fluid biomarkers <strong>in</strong> alzheimer’s<br />
disease and other neurodegenerative disease<br />
D. Diagnosis: biomarkers<br />
1. Proteomics <strong>of</strong> cognitive and movement disorders:<br />
Identification <strong>of</strong> molecular mechanisms associated<br />
with disease onset and phenotypic variability <strong>of</strong><br />
frontotemporal lobar degeneration<br />
2. Peripheral markers <strong>of</strong> oxidative stress,<br />
excitotoxicity and abnormal prote<strong>in</strong> metabolism <strong>in</strong><br />
neurodegenerative disorders.<br />
3. Validation and search <strong>of</strong> CSF biomarkers for the<br />
early differential diagnosis <strong>of</strong> cognitive impairment.<br />
Development <strong>of</strong> new diagnostic approaches for<br />
prion diseases <strong>in</strong> humans.<br />
g.spalletta@hsantalucia.it<br />
Paolo Calabresi<br />
calabre@unipg.it<br />
Lucilla Parnetti<br />
parnetti@unipg.it<br />
Roberta Ghidoni<br />
rghidoni@fatebenefratelli.it<br />
Carlo Ferrarese<br />
Carlo.ferrarese@unimib.it<br />
Piero Parchi<br />
Piero.parchi@unibo.it<br />
4. Analisi Biochimica di parametri di stress ossidativo Gabriele Siciliano<br />
gsicilia@neuro.med.unipi.it<br />
5. Cognitive decl<strong>in</strong>e <strong>in</strong> multiple sclerosis Laura Calzà<br />
6. Search <strong>of</strong> predictive markers <strong>of</strong> AD based on<br />
amplification <strong>of</strong> disease-specific amyloid-beta<br />
oligomers<br />
Laura.calza@unibo.it<br />
Fabrizio Tagliav<strong>in</strong>i<br />
ftagliav<strong>in</strong>i@istituto-besta.it<br />
7. Mild cognitive impairment and dementias Gianfranco Spalletta<br />
g.spalletta@hsantalucia.it<br />
E. Diagnosis: neuropsychology<br />
1. Handwrit<strong>in</strong>g analysis as a novel diagnostic tool for<br />
Alzheimer’s disease <strong>in</strong> the cl<strong>in</strong>ical and forensic<br />
sett<strong>in</strong>gs<br />
2. Amnesic Mild Cognitive Impairment:<br />
neuropsychological features and new diagnostic<br />
criteria (Dubois et Al., 2007)<br />
Maurizio Balestr<strong>in</strong>o<br />
mbalestr<strong>in</strong>o@neurologia.unige.it<br />
Angiola Maria Fasanaro<br />
Giola.fasanaro@virgilio.it<br />
3. Predictors <strong>of</strong> conversion from MCI to dementia Roberto Gallassi<br />
Roberto.gallassi@unibo.it<br />
4. Individual evaluation <strong>of</strong> cognitive decl<strong>in</strong>e; validation Ildebrando Appollonio<br />
<strong>of</strong> ultrafast screen<strong>in</strong>g tools.<br />
ildebrando.appollonio@unimib.it<br />
F. Biobank<strong>in</strong>g Bio<strong>in</strong>formatics<br />
G. Ambient assisted liv<strong>in</strong>g and socioeconomics<br />
1. Home-based Empowered Liv<strong>in</strong>g for people with<br />
dementia and Park<strong>in</strong>son’s disease<br />
Roberto Monastero<br />
roberto.monastero@unipa.it
2. Neuro-rehabilitation and bra<strong>in</strong> functional imag<strong>in</strong>g:<br />
rehabilitation customization driven by best<br />
exploitation <strong>of</strong> celebral plasticity and health system<br />
sustability.<br />
3. Role <strong>of</strong> <strong>in</strong>formation and communication technology<br />
(ICT) systems to improve quality <strong>of</strong> life, quality <strong>of</strong><br />
care and safety <strong>of</strong> older patients with cognitive<br />
decl<strong>in</strong>e<br />
4. A transdiscipl<strong>in</strong>ary orented proposal from a social<br />
sciences perspective<br />
Alessandra Pedrocchi<br />
pedrocchi@biomed.polimi.it<br />
Alberto Pilotto<br />
alberto.pilotto@operapadrepio.it<br />
V<strong>in</strong>cenzo Maria Bruno Giorg<strong>in</strong>o<br />
V<strong>in</strong>cenzo.giorg<strong>in</strong>o@unito.it
1. MECHANISMS OF NEURODEGENERATION<br />
A- Macromolecular <strong>in</strong>teractions and<br />
Neurodegeneration
Nome Dr. Pier Luigi San Biagio<br />
Contatti e-mail: pierluigi.sanbiagio@pa.ibf.cnr.it<br />
phone: +39 091 6809311<br />
cell: +39 329 410 5564<br />
Istituto/Dipartimento Istituto di Bi<strong>of</strong>isica - CNR, Via Ugo La Malfa, 153 , 90146 Palermo (Italy)<br />
Proposta di ricerca Many untreatable neurodegenerative human disorders are associated with the<br />
aggregation <strong>of</strong> misfolded or natively unfolded prote<strong>in</strong>s <strong>in</strong>to amyloid fibrils. Our<br />
<strong>research</strong> activity concerns Alzheimer’s Park<strong>in</strong>son’s and Albers-Schönberg diseases<br />
with the shared perspective <strong>of</strong> relat<strong>in</strong>g the understand<strong>in</strong>g <strong>of</strong> the pathway lead<strong>in</strong>g<br />
to the fibrils formation to the design <strong>of</strong> appropriate drugs capable on prevent<strong>in</strong>g<br />
the prote<strong>in</strong> aggregation.<br />
Alzheimer’s disease. Recent results suggested that the ma<strong>in</strong> neurotoxic species <strong>in</strong><br />
Alzheimer’s Disease (AD) would not be the<br />
<strong>in</strong>soluble prote<strong>in</strong> aggregates, made <strong>of</strong> extracellular deposits <strong>of</strong> Beta-amyloid<br />
peptide (Ab) fibrils, but rather the soluble oligomeric<br />
species, <strong>in</strong>clud<strong>in</strong>g small globular structures, 2.7 to 6.0 nm <strong>in</strong> diameter, and<br />
“prot<strong>of</strong>ibrils”. Conformational constra<strong>in</strong>s imposed by small<br />
organic molecules could play a key role <strong>in</strong> modulat<strong>in</strong>g the fibrillogenesis process,<br />
so provid<strong>in</strong>g effective therapeutic tools to target both<br />
oligomeric and fibrillar species. In this perspective, polycyclic aromatic molecules<br />
could be <strong>of</strong> special <strong>in</strong>terest as they might disrupt the<br />
molecular architectures precursors <strong>of</strong> fibrils by means <strong>of</strong> aromatic <strong>in</strong>teractions,<br />
like stack<strong>in</strong>g <strong>in</strong>teractions with tyros<strong>in</strong>e and<br />
phenylalan<strong>in</strong>e residues <strong>of</strong> Ab. In particular, natural polyphenols, composed <strong>of</strong> one<br />
or more aromatic phenolic r<strong>in</strong>gs, are a class <strong>of</strong><br />
phytochemicals found <strong>in</strong> high concentrations <strong>in</strong> w<strong>in</strong>e, tea, nuts, berries, fruits,<br />
cocoa, and an ample assortment <strong>of</strong> other plants. Some <strong>of</strong><br />
them have been demonstrated to have anti-oxidant and anti-amyloidogenic<br />
effect and it has been speculated that they could prevent<br />
the development <strong>of</strong> Alzheimer's disease, not only through scaveng<strong>in</strong>g <strong>of</strong> reactive<br />
oxygen species, but also through directly <strong>in</strong>hibit<strong>in</strong>g<br />
the deposition <strong>of</strong> fibrillar beta-amyloid <strong>in</strong> the bra<strong>in</strong>. In the present project, we’ll<br />
test some natural molecules, such as ferulic acid (FA), a<br />
phenolic anti-oxidant present <strong>in</strong> fruit cell walls, hyperic<strong>in</strong> (Hyp), a natural pigment<br />
extracted from Hypericum perforatum, widely used as<br />
a mild antidepressant and epigallocatech<strong>in</strong> gallate (EGCG), one <strong>of</strong> the major<br />
flavonoids <strong>of</strong> green tea. The aggregation process <strong>of</strong> Ab <strong>in</strong><br />
the presence <strong>of</strong> these natural molecules will be studied by light scatter<strong>in</strong>g,<br />
steady-state and time-resolved fluorescence, FTIR and CD<br />
techniques. The analysis <strong>of</strong> the correlations between the effects <strong>of</strong> the studied<br />
compounds on the various stages <strong>of</strong> amyloid fibril<br />
formation, and their known physicochemical properties, will provide novel<br />
<strong>in</strong>sights on the specific role <strong>of</strong> hydrophobic and aromatic<br />
<strong>in</strong>teractions. Encourag<strong>in</strong>g results have already been obta<strong>in</strong>ed us<strong>in</strong>g hyperic<strong>in</strong><br />
which has been shown to affect and to <strong>in</strong>terfere with the<br />
early stages <strong>of</strong> polymerization process. The furtherance <strong>of</strong> this type <strong>of</strong> study,<br />
extended to other small molecules like FA and EGCG,<br />
hopefully will meet the goal <strong>of</strong> design<strong>in</strong>g effective therapeutic tools to ideally<br />
target both oligomeric and fibrillar species, thus<br />
contribut<strong>in</strong>g to devise AD prevention strategies.
Area di <strong>in</strong>teresse<br />
identificata<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto 24 months, started 2001<br />
Park<strong>in</strong>son’s disease. Alpha-synucle<strong>in</strong> (aS) is the ma<strong>in</strong> constituent <strong>of</strong> Lewy bodies,<br />
<strong>in</strong>traneuronal fibrillar <strong>in</strong>clusions which are present<br />
<strong>in</strong> all patients affected by Park<strong>in</strong>son’s disease (PD). From genetic and biochemical<br />
studies it is believed that aS is <strong>in</strong>volved <strong>in</strong> the<br />
disease. AS is a natively unfolded prote<strong>in</strong> with the ability to acquire secondary<br />
structure upon <strong>in</strong>teraction with membranes or with itself.<br />
It is l<strong>in</strong>ked to PD by two evidences: the accumulation <strong>of</strong> amyloid fibrils <strong>of</strong> the<br />
prote<strong>in</strong> and the autosomal dom<strong>in</strong>ant forms <strong>of</strong> the disease<br />
(A53T, A30P and E46K mutants). Both the biological role <strong>of</strong> this prote<strong>in</strong> and the<br />
mechanisms <strong>in</strong>volved <strong>in</strong> the ethiopathogenesis <strong>of</strong> PD<br />
are still unknown. The prote<strong>in</strong> is located at the presynaptic term<strong>in</strong>al <strong>of</strong> neurons <strong>in</strong><br />
all the CNS, where it exists free <strong>in</strong> the citosol or<br />
bound to synaptic vesicles. The membrane b<strong>in</strong>d<strong>in</strong>g causes the formation <strong>of</strong> an<br />
amphipatic alpha-helix <strong>in</strong> the first part <strong>of</strong> the prote<strong>in</strong>, which lies at the membrane<br />
surface without cross<strong>in</strong>g the bilayer. Recent evidences show that aS is able to<br />
b<strong>in</strong>d and permeabilize cell<br />
membrane. Our <strong>in</strong>vestigation will be devoted (i) to the characterization, at the<br />
s<strong>in</strong>gle molecule level, <strong>of</strong> the channel like ability <strong>of</strong> aS and its architecture. The<br />
pore-form<strong>in</strong>g ability <strong>of</strong> monomers and aggregates <strong>of</strong> different sizes will be<br />
<strong>in</strong>vestigated. Secondly, the lipid specificity will be also <strong>in</strong>vestigated by means <strong>of</strong><br />
high resolution NMR and MS (both maldi-t<strong>of</strong> and esi-ms). The ability <strong>of</strong> aS to<br />
provoke or protect unsaturated acyl cha<strong>in</strong>s <strong>of</strong> membrane lipids from oxidation<br />
will also be <strong>in</strong>vestigated, by study<strong>in</strong>g with MS the products <strong>of</strong> oxidation. As<br />
possible therapeutic perspectives, the organic or peptidic <strong>in</strong>hibitors <strong>of</strong> prote<strong>in</strong>prote<strong>in</strong><br />
<strong>in</strong>teraction or able to clog the already formed pores will be <strong>in</strong>vestigated.<br />
Furthermore, if <strong>in</strong>dications <strong>of</strong> any lipid specificity will be obta<strong>in</strong>ed, we will<br />
develop lipid formulates suitable for sequester<strong>in</strong>g aS lower<strong>in</strong>g its level <strong>in</strong> solution.<br />
Albers-Schönberg disease. Mutations <strong>in</strong> the gene cod<strong>in</strong>g for the lysosomal Cl-/H+<br />
exchanger CLC-7 lead to recessive osteopetrosis<br />
and Albers-Schönberg disease. Apart from the osteopetrotic phenotype the<br />
recessive disease is characterized by severe generalized<br />
neurodegeneration. Also knock-out <strong>of</strong> the plasma membrane localized CLC-2 lead<br />
to neurodegeneration (ret<strong>in</strong>al degeneration and<br />
leukoencephalopathy). The mechanisms underly<strong>in</strong>g these phenotypes are<br />
unclear. We are study<strong>in</strong>g the functional properties <strong>of</strong> these<br />
two prote<strong>in</strong>s us<strong>in</strong>g electrophysiological and optical methods, comb<strong>in</strong>ed with<br />
mutagenesis, <strong>in</strong> order understand how their dysfunction<br />
may lead to neurodegeneration. In particular, we consider these prote<strong>in</strong>s as<br />
potential risk factors for more generalized forms <strong>of</strong><br />
neurodegeneration.<br />
Public health. Therapeutic strategies for the prevention and treatment <strong>of</strong><br />
neurodegenerative<br />
diseases. Molecular basis <strong>of</strong> amyloid aggregation<br />
Progetto strategico di ricerca f<strong>in</strong>alizzata sulla malattia di Alzheimer (Art. 12/bis D.Lgs<br />
229/99),<br />
“Beta-amyloid deposit on the cell membrane: role <strong>of</strong> metal ions and free radicals”<br />
<strong>Italian</strong> 'M<strong>in</strong>istero della Salute”
Abstract del progetto<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
Characterization <strong>of</strong> some key molecular mechanisms for the neuronal damage connected<br />
to AD. Specific objectives: (i) to identify <strong>of</strong> the key steps responsible for the amyloid<br />
depost formation on membrane model systems <strong>in</strong> vitro; (ii) to evaluate the role <strong>of</strong> the<br />
membrane lipid composition on the deposit; (iii) to understand the role <strong>of</strong> metal ions and<br />
oxidative stress on<br />
the fibril growth both <strong>in</strong> solution and on membranes; (iv) to establish an <strong>in</strong> vitro test for<br />
evaluat<strong>in</strong>g the ability <strong>of</strong> drugs to <strong>in</strong>hibit bA aggregation.<br />
“Animal neuropathies: molecular and functional analysis <strong>of</strong> the prionic prote<strong>in</strong>s <strong>in</strong> Sicilian<br />
bov<strong>in</strong>e race ”<br />
<strong>Italian</strong> 'M<strong>in</strong>istero della Salute<br />
24 months, started 2003<br />
The ma<strong>in</strong> objective <strong>of</strong> the present proposal is to understand the mechanisms by which<br />
wild type and mutant prion prote<strong>in</strong>s become misfolded <strong>in</strong> such a way as to provoke<br />
neurodegenerative diseases becom<strong>in</strong>g transmissible agents. An extensive study <strong>of</strong> the<br />
aggregation process will be done by us<strong>in</strong>g static and dynamic light scatter<strong>in</strong>g and<br />
fluorescence techniques.<br />
Pr<strong>in</strong> 2005 project: “The effects <strong>of</strong> metal ions on the prote<strong>in</strong> aggregation processes”<br />
<strong>Italian</strong> 'M<strong>in</strong>istero Università e Ricerca'<br />
24 months, started 2005<br />
The project concerns the study <strong>of</strong> the effects <strong>of</strong> metal ions <strong>in</strong> solution on the prote<strong>in</strong><br />
aggregation processes. Ma<strong>in</strong> goals are (i) to understand the molecular mechanisms<br />
relevant for amyloid aggregation and to establish the relevance <strong>of</strong> metals <strong>in</strong> modulat<strong>in</strong>g<br />
solvent mediated prote<strong>in</strong>-prote<strong>in</strong> <strong>in</strong>teractions.<br />
“Electrophysiological characterization <strong>of</strong> the alpha synucle<strong>in</strong> channels, a prote<strong>in</strong> <strong>in</strong>volved<br />
<strong>in</strong> Park<strong>in</strong>son’s disease”<br />
Local Bank Foundation CARITRO<br />
24 months, started 2008<br />
The aim <strong>of</strong> the project is: i) to characterize the channel like activity <strong>of</strong> alpha synucle<strong>in</strong> (aS)<br />
and its role <strong>in</strong> the disease; ii) to dist<strong>in</strong>guish the most active aS form; iii) to verify the ability<br />
<strong>of</strong> aS to b<strong>in</strong>d to membranes and lipid requirements; iv) to <strong>in</strong>vestigate the role <strong>of</strong> aS <strong>in</strong> the<br />
prevention <strong>of</strong> the oxidation <strong>of</strong> unsaturated fatty acid cha<strong>in</strong>s<br />
Pr<strong>in</strong> 2008 project: “Inhibition <strong>of</strong> beta-amyloid peptide aggregation by some natural<br />
compounds”<br />
<strong>Italian</strong> 'M<strong>in</strong>istero Università e Ricerca<br />
24 months, started 2010<br />
The aim <strong>of</strong> this project is to provide a molecular approach for prevent<strong>in</strong>g Abeta<br />
aggregation and toxicity through the use <strong>of</strong> some natural molecules potentially able <strong>of</strong><br />
<strong>in</strong>teract with Abeta by stabiliz<strong>in</strong>g or disrupt aggregates <strong>of</strong> different sizes.<br />
“Membrane transport <strong>of</strong> chloride and protons: mechanism <strong>of</strong> function <strong>of</strong> CLC family<br />
prote<strong>in</strong>s <strong>in</strong>volved <strong>in</strong> epilepsy and neurodegeneration”<br />
Compagnia San Paolo<br />
36 months, started 2009<br />
CLC-2 is a plasma membrane localized Cl- channel whereas CLC-7 is a lysosomal Cl-/H+<br />
exchanger. Knock-out <strong>of</strong> CLC-2 <strong>in</strong> mice leads to ret<strong>in</strong>al degeneration and<br />
leukoencephalopathy and knock-out <strong>of</strong> CLC-7 and human mutations <strong>in</strong> the CLCN7 gene
lead<br />
to generalized neurodegeneration. The aim <strong>of</strong> the project is to understand better the<br />
transport<br />
function <strong>of</strong> these two prote<strong>in</strong>s <strong>in</strong> order to get <strong>in</strong>sight <strong>in</strong>to their causative role <strong>in</strong> these<br />
forms <strong>of</strong><br />
neurodegeneration.
Nome Bruno Samorì<br />
Contatti E mail: bruno.samori@unibo.it<br />
Istituto/Dipartimento Laboratory <strong>of</strong> Nanoscience and Nanobiotechnology, Department <strong>of</strong><br />
Biochemistry, University <strong>of</strong> Bologna (Italy)<br />
(http://biocfarm.unibo.it/samori/)<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse identificata Basic <strong>research</strong><br />
Abstract Accord<strong>in</strong>g to an emerg<strong>in</strong>g view, the aggregation-prone prote<strong>in</strong>s associated<br />
to neurodegenerative, Park<strong>in</strong>son’s, Alzheimer’s, and Creutzfeldt-Jakob<br />
diseases, can switch back and forth between functional and<br />
amyloidogenic/prionogenic conformations. Their conformational<br />
polymorphism poses tremendous challenges to standard methods <strong>in</strong><br />
structural biology, which mask the complexity <strong>of</strong> their behaviour by<br />
record<strong>in</strong>g observables as time and ensemble averages. S<strong>in</strong>gle-molecule<br />
methodologies can <strong>in</strong>stead follow the time trajectories <strong>of</strong> <strong>in</strong>dividual<br />
molecules or molecular assemblies, can map their energy landscapes, and<br />
obta<strong>in</strong> distributions <strong>of</strong> molecular properties. These capabilities can provide<br />
<strong>in</strong>formation about the monomeric state <strong>of</strong> an amyloidogenic prote<strong>in</strong> and<br />
about the very early stages <strong>of</strong> its amyloid cascade. This <strong>in</strong>formation is<br />
crucially needed for the design <strong>of</strong> new drugs aga<strong>in</strong>st Park<strong>in</strong>son’s or<br />
Alzheimer’s disease that must be capable to target upstream <strong>of</strong> the<br />
formation <strong>of</strong> the most neurotoxic oligomeric species. In fact concerns are<br />
now grow<strong>in</strong>g over the possibility that more harm than cure can be created<br />
whenever the deposits <strong>in</strong> the central−nervous−system, are targeted<br />
<strong>in</strong>stead: <strong>in</strong> this way their dynamic equilibrium with the oligomeric forms<br />
can be shifted back to the latter.<br />
We have recently shown that Atomic Force Microscopy-based S<strong>in</strong>gle<br />
Molecule Force Spectroscopy (AFM-SMFS) can s<strong>in</strong>gle out the different<br />
monomeric conformers <strong>of</strong> α-synucle<strong>in</strong> (the <strong>in</strong>tr<strong>in</strong>sically unstructured<br />
prote<strong>in</strong> associated to Park<strong>in</strong>son’s disease) and <strong>of</strong> its mutants associated to<br />
genetic PD. (1,2). So far AFM-SMFS has been the only methodology that<br />
made it possible to achieve this goal.<br />
Ongo<strong>in</strong>g projects:<br />
a) The <strong>in</strong>tegration <strong>of</strong> AFM-SMFS with Optical tweezers (OT) (<strong>in</strong> coll.<br />
with Carlos Bustamante (UC Berkeley).<br />
b) The determ<strong>in</strong>ation <strong>of</strong> alpha synucle<strong>in</strong> aggregation step targeted<br />
by different potential drugs or chaperons, by us<strong>in</strong>g an <strong>in</strong>tegrated<br />
approach based on AFM- and OT-SMFS, AFM-imag<strong>in</strong>g,<br />
Fluorescence Polarization Spectroscopy ( <strong>in</strong> collaboration with
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Luigi Bubacco, University <strong>of</strong> Padova)<br />
c) The conformational equilibria or prion prote<strong>in</strong>s (<strong>in</strong> coll. with G.<br />
Legname SISSA Trieste, and Motomasa Tanaka, Riken, Japan)<br />
(1) Sandal, M., et al (2008). PLoS Biol 6, 999-1008.<br />
(2) Brucale, et al. (2009). Chembiochem 10, 176-83.<br />
Nanomanipolazione di s<strong>in</strong>gole molecole delle prote<strong>in</strong>e co<strong>in</strong>volte <strong>in</strong><br />
malattie neurodegenerative<br />
Ente f<strong>in</strong>anziatore FIRB Nanobiotecnologie per dispositivi e sensori <strong>in</strong>novativi (G.U.<br />
29.07.2005 n. 175)<br />
Durata progetto 2005-2008; 2005-2010<br />
FIRB Metodologie e tecnologie <strong>in</strong>novative per la farmaceutica. CINECA<br />
RBNE03PX83<br />
Abstract del progetto Sviluppo metodologie di nanomanipolazione di prote<strong>in</strong>e <strong>in</strong>tr<strong>in</strong>secamente<br />
non foldate o disord<strong>in</strong>ate<br />
Titolo progetto Meccanismi Neurodegenerativi nelle Malattie da Prioni (coord<strong>in</strong>. Catia<br />
Sorgato)<br />
Ente f<strong>in</strong>anziatore PRIN 2009<br />
Durata progetto 2010-2012
Nome Dr. Eugenia Polver<strong>in</strong>i<br />
Contatti<br />
eugenia.polver<strong>in</strong>i@unipr.it<br />
Istituto/Dipartimento Department <strong>of</strong> Physics – University <strong>of</strong> Parma<br />
Proposta di ricerca<br />
Our studies are - and will be - focused on myel<strong>in</strong> prote<strong>in</strong>s, to the aim <strong>of</strong> clarify their structure to function relationship<br />
and the mechanisms <strong>in</strong>volved <strong>in</strong> demyel<strong>in</strong>at<strong>in</strong>g diseases, <strong>in</strong>clud<strong>in</strong>g multiple sclerosis. Two ma<strong>in</strong> prote<strong>in</strong>s are under<br />
<strong>in</strong>vestigation: the Myel<strong>in</strong> Basic Prote<strong>in</strong> (MBP) and the P2 myel<strong>in</strong> prote<strong>in</strong>.<br />
MBP is a highly post-translationally modified structural component <strong>of</strong> central nervous system myel<strong>in</strong>, the<br />
multilamellar membrane wrapped around nerve axons. MBP has a high net positive charge and its pr<strong>in</strong>cipal role<br />
seems to be the adhesion <strong>of</strong> the cytosolic surfaces <strong>of</strong> the compact myel<strong>in</strong> sheath, whose structural <strong>in</strong>tegrity<br />
determ<strong>in</strong>es the speed <strong>of</strong> transmission <strong>of</strong> action potentials along the axon. However, MBP seems to be a<br />
multifunctional prote<strong>in</strong>, s<strong>in</strong>ce it also <strong>in</strong>teracts with other cytoskeletal and signall<strong>in</strong>g prote<strong>in</strong>s, tether<strong>in</strong>g some <strong>of</strong> them<br />
to the oligodendrocyte plasma membrane. The three-dimensional structure <strong>of</strong> MBP <strong>in</strong> situ is still unknown, due to its<br />
<strong>in</strong>tr<strong>in</strong>sic flexibility and dependence <strong>of</strong> conformation on environment. Therefore a neighbourhood-dependent<br />
structural charcterization <strong>of</strong> fragtments is attempted. In the classic 18.5 kDa MBP sequence, there is a highly<br />
conserved fragment, constitut<strong>in</strong>g two regions with different putative functionality. The first region seems to<br />
associate with the membrane, and comprises the primary immunodom<strong>in</strong>ant epitope <strong>in</strong> multiple sclerosis; the second<br />
one is a prol<strong>in</strong>e-rich segment, that has been predicted to be a ligand for prote<strong>in</strong> k<strong>in</strong>ase SH3-doma<strong>in</strong>s. Due to the<br />
functional relevance <strong>of</strong> this fragment <strong>of</strong> MBP, we’re try<strong>in</strong>g a structural characterization - <strong>in</strong> the absence and <strong>in</strong> the<br />
presence <strong>of</strong> prote<strong>in</strong>’s post-translational modifications - by means <strong>of</strong> molecular dynamics simulations <strong>in</strong> membrane<br />
and <strong>of</strong> spectroscopic techniques (<strong>in</strong> collaboration with the University <strong>of</strong> Guelph, Ontario, Canada).<br />
P2 myel<strong>in</strong> prote<strong>in</strong> is a basic peripheral nervous system prote<strong>in</strong> localized to the cytoplasmic spaces <strong>in</strong> the myel<strong>in</strong><br />
lamellae. It was recognized as the factor <strong>in</strong>duc<strong>in</strong>g the Experimental Allergic Neuritis, an animal model for the study <strong>of</strong><br />
the Guilla<strong>in</strong>-Barrè syndrome, a demyel<strong>in</strong>at<strong>in</strong>g disease <strong>of</strong> the PNS <strong>in</strong> humans. The <strong>in</strong>terest for the putative<br />
autoantigenic role <strong>of</strong> the P2 prote<strong>in</strong> and the need to understand its function <strong>in</strong> the myel<strong>in</strong> sheath has led to the study<br />
<strong>of</strong> its structural characteristics and behaviour, bas<strong>in</strong>g on the solved crystal structures. By <strong>in</strong>vestigat<strong>in</strong>g its <strong>in</strong>teraction<br />
with different k<strong>in</strong>ds <strong>of</strong> lipids, on the one hand we want to clarify its transport role and on the other hand we want to<br />
verify its putative <strong>in</strong>volvement <strong>in</strong> the compactness <strong>of</strong> PNS myel<strong>in</strong> sheat. Different approaches are carry<strong>in</strong>g out:<br />
molecular dock<strong>in</strong>g simulations, spectroscopical <strong>in</strong>vestigations and, <strong>in</strong> collaboration with the University <strong>of</strong> Oulu,<br />
F<strong>in</strong>land, crystal X-ray diffraction and small-angle X-ray scatter<strong>in</strong>g.<br />
Area di <strong>in</strong>teresse identificata<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
myel<strong>in</strong> prote<strong>in</strong>s and demyel<strong>in</strong>at<strong>in</strong>g deseases<br />
University local <strong>research</strong> funds (FIL)
Nome Pr<strong>of</strong>. ROBERTO DE RENZI - Dr. MARIA GRAZIA BRIDELLI<br />
Contatti<br />
mariagrazia.bridelli@unipr.it<br />
Istituto/Dipartimento Physics department<br />
University <strong>of</strong> Parma<br />
Parco Area delle Scienze, 7/A, Parma<br />
ITALY<br />
Proposta di ricerca<br />
The goal <strong>of</strong> our <strong>research</strong> is threefold:<br />
1) study <strong>of</strong> the nucleation rate and the growth rate <strong>of</strong> the amyloidogenic process by controll<strong>in</strong>g and modulat<strong>in</strong>g the<br />
solution parameters such as temperature, pH, solvent composition, and peptide concentration, not only <strong>in</strong>fluenc<strong>in</strong>g<br />
the f<strong>in</strong>al fibril state but also the formation k<strong>in</strong>etics. The analysis <strong>of</strong> the aggregation process will be performed <strong>in</strong><br />
solution by employ<strong>in</strong>g CD and Fluorescence spectroscopies by follow<strong>in</strong>g the change <strong>of</strong> fluorescence emission <strong>of</strong> small<br />
hydrophobic molecules, called amyloid ligands, which do not b<strong>in</strong>d to specific prote<strong>in</strong>s but are selective for prote<strong>in</strong><br />
aggregates with a cross β-sheet conformation. Dynamic Light Scatter<strong>in</strong>g measurements will allow to monitor size and<br />
shapes <strong>of</strong> the fibrils dur<strong>in</strong>g the aggregation process.<br />
2) study the conformational state <strong>of</strong> prote<strong>in</strong>s <strong>in</strong> the native and amyloid form at very low hydration level by<br />
<strong>in</strong>vestigat<strong>in</strong>g the structural properties <strong>of</strong> the first hydration shell. It is well known that prote<strong>in</strong>s are surrounded <strong>in</strong> the<br />
cell by a hydration shell formed by <strong>in</strong>teract<strong>in</strong>g water molecules that form patches locally distributed <strong>in</strong> dependence<br />
on the heterogeneous surface chemistry or occluded <strong>in</strong> the <strong>in</strong>ternal cavities. This bound water <strong>in</strong> the crowded<br />
cytoplasm may not be enough to fully cover the prote<strong>in</strong> surface with a monolayer aqueous sheath, moreover about<br />
0.4 g <strong>of</strong> water/g <strong>of</strong> prote<strong>in</strong> are enough to assure prote<strong>in</strong> normal functionality. Two experimental techniques can be<br />
applied to <strong>in</strong>vestigate this structured water to ga<strong>in</strong> <strong>in</strong>formation on the geometry <strong>of</strong> the prote<strong>in</strong> surface and<br />
secondary structure. Thermally Stimulated Depolarization Currents (TSDC) technique, applied <strong>in</strong> the past to a variety<br />
<strong>of</strong> natural and synthetic biopolymers has recently been applied to the study <strong>of</strong> lysozyme. It has allowed recogniz<strong>in</strong>g<br />
the ma<strong>in</strong> features <strong>of</strong> the hydration as a function <strong>of</strong> secondary structure, reveal<strong>in</strong>g a clear dom<strong>in</strong>ance <strong>of</strong> the βstructure<br />
<strong>in</strong> the amyloid form. Fourier Transform Infrared Spectrometry as well has proven to be highly versatile <strong>in</strong><br />
the analysis <strong>of</strong> prote<strong>in</strong> conformation by monitor<strong>in</strong>g the alteration <strong>in</strong> prote<strong>in</strong> secondary structure as changes <strong>in</strong> the<br />
Amide bands.<br />
3) by means <strong>of</strong> the molecular dynamics simulation techniques, study the conformational changes that prote<strong>in</strong>s<br />
undergo under the critical environmental conditions that <strong>in</strong> vitro cause the fibrils formation. This approach could be<br />
useful to <strong>in</strong>vestigate the pathway(s) <strong>of</strong> the transition and its molecular features.<br />
Area di <strong>in</strong>teresse identificata<br />
F<strong>in</strong>anziamenti ricevuti University local <strong>research</strong> funds FIL 2008<br />
Conformational transitions <strong>of</strong> prote<strong>in</strong>s from native to amyloid form.<br />
Titolo progetto Hydration structure analysis <strong>of</strong> Lysozyme amyloid fibrils<br />
Ente f<strong>in</strong>anziatore M<strong>in</strong>istero dell’Istruzione, dell’Università e della Ricerca<br />
Durata progetto 2 y<br />
Abstract del progetto<br />
Comb<strong>in</strong>ed Thermally stimulated depolarization currents (TSDC) and FTIR<br />
techniques have been employed to <strong>in</strong>vestigate the conformation <strong>of</strong> hen egg<br />
white lysozyme <strong>in</strong> native and amyloid form, <strong>in</strong> the state <strong>of</strong> powder at very low<br />
hydration level. The spectra reveal specific features that can be attributed to<br />
water texture around the secondary structure adopted by the macromolecule.
Nome Sandro Sonn<strong>in</strong>o<br />
Contatti<br />
Tel.<br />
E mail<br />
Via fratelli Cervi 93, 20090 Segrate (Mi) Italy,<br />
+39 0250330360, fax +39 0250330365,<br />
sandro.sonn<strong>in</strong>o@unimi.it<br />
Dipartimento Medical Chemistry, Biochemistry and Biotechnology, University <strong>of</strong> Milan<br />
Proposta di ricerca<br />
Role <strong>of</strong> altered composition <strong>of</strong> plasma membrane complex lipids <strong>in</strong> lipid-prote<strong>in</strong> <strong>in</strong>teractions, membrane<br />
organization and neurodegeneration.<br />
Area di <strong>in</strong>teresse identificata 1. MECHANISMS OF NEURODEGENERATION<br />
F. Endocr<strong>in</strong>e and Metabolic Factors
Nome Angelo Poletti<br />
Contatti<br />
02-5031.8215<br />
angelo.poletti@unimi.it<br />
Istituto/Dipartimento Dipartimento di Endocr<strong>in</strong>ologia, Fisiopatologia e Biologia Applicata , Centro di<br />
Eccellenza sulle Malattie <strong>Neurodegenerative</strong> Universita' degli Studi di Milano<br />
via Balzaretti 9 - 20133 Milano<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse identificata Macromolecular <strong>in</strong>teractions and Neurodegeneration<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
ROLE OF ALTERED PROTEOLYSIS IN THE DEGENERATION OF MOTOR NEURONS IN<br />
<strong>in</strong> vivo AND <strong>in</strong> vitro MODELS OF FAMILIAL AMYOTROPHIC LATERAL SCLEROSIS.<br />
INVOLVEMENT OF CONSTITUTIVE AND IMMUNO PROTEASOMES AND OF THE<br />
AUTOPHAGY−LYSOSOME PATHWAY<br />
TELETHON – Italy<br />
three years (end 2010)<br />
Abstract del progetto<br />
Amyotrophic lateral sclerosis (ALS) is a neurological disorder primarily affect<strong>in</strong>g<br />
motor neurons, i.e. the neurons responsible for the contraction <strong>of</strong> muscles that<br />
control voluntary movements, speach, swallow<strong>in</strong>g, respiration. The disease,<br />
whose causes are still largely unknown, is characterized by a progressive<br />
paralysis that leads to death for respiratory failure. As <strong>in</strong> some familiar forms <strong>of</strong><br />
ALS there are mutations <strong>in</strong> the gene<br />
that codes for the enzyme superoxide dismutase 1 (SOD1), it has been possible<br />
to create experimental models <strong>of</strong> the disease to facilitate the <strong>research</strong> on the<br />
causes that lead to motor neurons death. Both <strong>in</strong> ALS patients and <strong>in</strong> the<br />
experimental models the vulnerable neurons conta<strong>in</strong> aggregates <strong>of</strong> abnormal<br />
prote<strong>in</strong>s, whose accumulation can be responsible for the degeneration. It is<br />
therefore possible to hypothesize that a role <strong>in</strong> the pathology is played by<br />
dysfunctions <strong>of</strong> the proteolytic mechanisms, i.e. <strong>of</strong> the mechanisms that normally<br />
degrade <strong>in</strong>tracellular prote<strong>in</strong>. We propose to <strong>in</strong>vestigate whether motor neurons<br />
degeneration <strong>in</strong> ALS is due to a failure <strong>of</strong> prote<strong>in</strong> degradation, us<strong>in</strong>g two<br />
experimental models (transgenic mice and a motor neuron cell l<strong>in</strong>e, both<br />
express<strong>in</strong>g mutant human SOD1) and analyz<strong>in</strong>g two different <strong>in</strong>tracellular<br />
proteolytic systems: the proteasomes and the autophagosome−lysosome<br />
Titolo progetto<br />
Motorneuron degeneration <strong>in</strong> Sp<strong>in</strong>al and Bulbar Muscular Atrophy: from the<br />
molecular mechanisms to the potential therapeutical approaches<br />
Ente f<strong>in</strong>anziatore TELETHON - ITALY<br />
Durata progetto<br />
Three Years (End 2011)<br />
Abstract del progetto<br />
CAG/polyglutam<strong>in</strong>e (polyQ) diseases, the largest class <strong>of</strong> hereditary<br />
neurodegenerative diseases, <strong>in</strong>clude Sp<strong>in</strong>oBulbar Muscular Atrophy (SBMA), a<br />
motorneuron disease l<strong>in</strong>ked to the androgen receptor (AR) mutation. SBMA is a<br />
valuable model <strong>of</strong> polyQ diseases, because ARpolyQ neurotoxicity is triggered by<br />
testosterone, the endogenous AR ligand, possibly via prote<strong>in</strong> conformational<br />
changes. In SBMA animal models, the symptoms are reversed by testosterone<br />
removal suggest<strong>in</strong>g that SBMA patients can be treated with drugs prevent<strong>in</strong>g<br />
testosterone action. The overall objectives <strong>of</strong> the study are to f<strong>in</strong>d the<br />
mechanism(s) by which ARpolyQ neurotoxicity can be modulated by<br />
testosterone with the aim to identify novel therapeutical approaches for SBMA<br />
and possibly <strong>in</strong>dications useful for other polyQ diseases. Therefore, all the<br />
studies proposed will be carried out <strong>in</strong> absence or <strong>in</strong> presence <strong>of</strong> testosterone,<br />
and four different specific aspects, thought to be <strong>in</strong>volved <strong>in</strong> SBMA, have been<br />
selected:<br />
− <strong>in</strong>teractions <strong>of</strong> the two major <strong>in</strong>tracellular degradative systems: the
Titolo progetto<br />
ubiquit<strong>in</strong>−proteasome and the autophago−lysosome pathways <strong>in</strong> the removal <strong>of</strong><br />
the neurotoxic ARpolyQ; analysis <strong>of</strong> ARpolyQ solubility and aggregation, and their<br />
modulation by selective AR modulators (SARM) and HSP−modulators.<br />
− analysis <strong>of</strong> the axonal antero−retrograde transport <strong>in</strong> presence <strong>of</strong> ARpolyQ<br />
activated by testosterone (and SARMs). This aim will <strong>in</strong>clude the expression<br />
analysis <strong>of</strong> some prote<strong>in</strong>s related to axonal outgrowth and controlled by<br />
testosterone (neurit<strong>in</strong> or CGP15).<br />
− analysis <strong>of</strong> the possible toxicity <strong>of</strong> ARpolyQ <strong>in</strong> muscle cells, and the <strong>in</strong>teraction<br />
between motorneuron and muscle cells <strong>in</strong> SBMA.<br />
− analysis <strong>of</strong> the AR promoter activity to identified factors downregulat<strong>in</strong>g the<br />
ARpolyQ levels <strong>in</strong> motor neuron. These studies will provide <strong>in</strong>formation <strong>of</strong> the<br />
mechanisms by which ARpolyQ becomes neurotoxic after testosterone<br />
<strong>in</strong>teraction, that may be used to design novel therapeutical approaches for SBMA<br />
and related diseases<br />
Alterations <strong>of</strong> Axonal Functions and Neurodegeneration <strong>in</strong> Motor Neuron<br />
Diseases<br />
Ente f<strong>in</strong>anziatore FONDAZIONE CARIPLO<br />
Durata progetto Three Years (end 2012)<br />
Abstract del progetto<br />
Motor neuron diseases (MNDs) are a group <strong>of</strong> sporadic or hereditary<br />
neurodegenerative diseases characterized by selective motor neuron death. They<br />
may affect children and adult patients with relentless progression rate lead<strong>in</strong>g to<br />
amyotrophic paralysis and death. Several genetic, molecular and cellular<br />
alterations have been reported <strong>in</strong> the different MNDs and <strong>in</strong>terpreted as<br />
potentially relevant <strong>in</strong> the pathogenesis responsible for neuronal death.<br />
However, it is still unclear whether these alterations are cause or effects <strong>of</strong> <strong>in</strong>itial<br />
<strong>in</strong>sults capable to perturb cell functions. The cl<strong>in</strong>ical trials attempted with the<br />
aim to counteract these alterations have proven to be largely <strong>in</strong>effective. A<br />
common aspect <strong>of</strong> most MNDs is the alteration <strong>of</strong> motor neuron axons, thus<br />
suggest<strong>in</strong>g specific axonal function impairment. Axonal processes can reach a<br />
considerable length (up to 1 meter) and are fundamental for motor neuron<br />
functions and survival. Axons allow neuronal control <strong>of</strong> muscle contraction, but<br />
also collect survival/trophic factors released from the muscle, and required for<br />
motor neuron physiology. Nerve damages and axonal loss result <strong>in</strong> motor neuron<br />
death and muscle atrophy. The project will focus on three major human MNDs,<br />
sp<strong>in</strong>al muscular atrophy (SMA), sp<strong>in</strong>o-bulbar muscular atrophy (SBMA) and<br />
amyotrophic lateral sclerosis (ALS), affect<strong>in</strong>g similar motor neuron population<br />
with different rate <strong>of</strong> cell death. It will be based on advanced analytical<br />
techniques and specific expertise <strong>of</strong> five <strong>research</strong> units. The units will utilize<br />
complementary genomic, biochemical, molecular and cellular assays to study the<br />
mechanisms <strong>of</strong> axonal dysfunctions <strong>in</strong> the MNDs studied. S<strong>in</strong>ce gene mutations,<br />
gene expression impairment, and altered post-translational modifications <strong>of</strong><br />
specific prote<strong>in</strong>s are <strong>in</strong>volved <strong>in</strong> these MNDs, the project will be dedicated to<br />
unravel such alterations at the genomic and molecular level with the f<strong>in</strong>al aim <strong>of</strong><br />
identify<strong>in</strong>g novel common therapeutical targets. Ma<strong>in</strong> objectives: i)<br />
development and/or improvement <strong>of</strong> motor neuron models <strong>of</strong> SMA, SBMA and<br />
ALS; ii) analysis at the (nuclear and mitochondrial) genomic level <strong>of</strong> alterations<br />
determ<strong>in</strong>ed by the lack or the expression <strong>of</strong> prote<strong>in</strong>s (FL-SMN/a-SMN, mutant<br />
ARpolyQ, mutant SOD1) responsible for the MNDs selected; iii) morphological,<br />
cellular, molecular and biochemical analyses <strong>of</strong> the effects <strong>of</strong> the considered<br />
prote<strong>in</strong>s on axonal functions/dysfunctions <strong>in</strong> the MNDs selected.Five different<br />
<strong>research</strong> <strong>in</strong>stitutions (University <strong>of</strong> Milan, Center <strong>of</strong> Excellence on<br />
<strong>Neurodegenerative</strong> Diseases; IRCCS Foundation Neurological Institute C. Besta;<br />
IRCCS <strong>Italian</strong> Auxologic Institute; Mario Negri Institute for Pharmacological<br />
Research; National Institute <strong>of</strong> Molecular Genetics) with specific expertise <strong>in</strong> the<br />
basic mechanisms <strong>of</strong> neurodegeneration will be <strong>in</strong>volved. The approval <strong>of</strong> this<br />
project would enable to establish a critical mass <strong>of</strong> <strong>research</strong>ers devoted to MNDs<br />
<strong>in</strong> Milan, allow<strong>in</strong>g the recruitment and formation <strong>of</strong> young scientists.
Nome Antonio Malgaroli, Gian Giacomo Consalez<br />
Contatti<br />
02 2643 4886<br />
antonio.malgaroli@hsr.it, giacomo.consalez@hsr.it<br />
Istituto/Dipartimento Università Vita-Salute San Raffaele<br />
Proposta di ricerca Optical And Biomolecular Methods For The Functional Investigation Of Neural Circuits In Vivo.<br />
Area di <strong>in</strong>teresse identificata Analisi della funzione s<strong>in</strong>aptica nei tessuti nervosi normali e <strong>in</strong> modelli di<br />
neurodegenerazione<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Optical And Biomolecular Methods For The Functional Investigation Of Neural<br />
Circuits In Vivo.<br />
Fondazione CARIPLO (pend<strong>in</strong>g)<br />
2 anni<br />
Every human behavior depends on an activity change <strong>in</strong> one or more bra<strong>in</strong> areas,<br />
<strong>of</strong>ten with the contribution <strong>of</strong> very small subgroups <strong>of</strong> cells and synapses.<br />
Conversely, when a bra<strong>in</strong> disease whatsoever, a tumor, a vascular disorder, a<br />
grey or white matter pathology, etc., modifies some behavioral aspect, <strong>in</strong>evitably<br />
this effect arises from a change <strong>in</strong> neural activity. Hence, view<strong>in</strong>g the f<strong>in</strong>e<br />
structure <strong>of</strong> the bra<strong>in</strong> by the most advanced imag<strong>in</strong>g techniques is certa<strong>in</strong>ly<br />
important but it would be more important to f<strong>in</strong>d some effective way to detect<br />
changes <strong>in</strong> neuronal and synaptic activity dur<strong>in</strong>g both physiological and<br />
pathological processes. Indeed, for many different body organs, the kidney, the<br />
heart, the liver, the pancreas, etc, the early detection <strong>of</strong> signs and symptomsand<br />
the choice <strong>of</strong> an optimized therapeutic approach <strong>of</strong>ten depend more on the<br />
availability <strong>of</strong> a large set <strong>of</strong> chemical and molecular markers <strong>of</strong> cell function<br />
rather than on our ability to visualize f<strong>in</strong>e details <strong>of</strong> the tissue anatomy.<br />
Unfortunately techniques available today to monitor bra<strong>in</strong> function, such as<br />
E.E.G., fMRI, fNIRS, etc., either sample bra<strong>in</strong> activity very <strong>in</strong>directly, through<br />
changes <strong>in</strong> metabolism and blood flow, or do not have the resolution required to<br />
p<strong>in</strong>po<strong>in</strong>t changes <strong>in</strong> small networks <strong>of</strong> neuronal cells and synapses. At present,<br />
anomalous states <strong>of</strong> bra<strong>in</strong> activity can be detected only when they arise from<br />
the concerted activity <strong>of</strong> large numbers <strong>of</strong> neurons and synapses, such as <strong>in</strong><br />
epilepsy, or when cell and/or synaptic and/or axonal damage becomes very<br />
pr<strong>of</strong>ound. For all the above reasons, the demand for a methodology that could<br />
yield a more direct readout <strong>of</strong> <strong>in</strong> vivo neuronal and synaptic activity is extremely<br />
high.<br />
In this <strong>research</strong> project we are plann<strong>in</strong>g to further develop a methodology that<br />
was recently designed <strong>in</strong> one <strong>of</strong> our labs to provide a very direct and sensitive<br />
readout <strong>of</strong> bra<strong>in</strong> activity. This is based on a family <strong>of</strong> recomb<strong>in</strong>ant molecules<br />
which were designed <strong>in</strong> our labs to detect synaptic activaton via the application<br />
<strong>of</strong> exogenous markers. This methodology is capable <strong>of</strong> reveal<strong>in</strong>g the physiological<br />
activation <strong>of</strong> bra<strong>in</strong> synaptic networks with very high sensitivity and resolution.<br />
These strik<strong>in</strong>g results have prompted the generation <strong>of</strong> a series <strong>of</strong> transgenic
animal models and analytical tools that will be used for further <strong>in</strong> vivo validation<br />
and for the selective prob<strong>in</strong>g <strong>of</strong> specific subgroups <strong>of</strong> neuronal cells and<br />
pathways, both <strong>in</strong> physiological and pathological conditions. The f<strong>in</strong>al goal <strong>of</strong> this<br />
project is to test the applicability <strong>of</strong> this approach to the quantitative analysis <strong>of</strong><br />
bra<strong>in</strong> activity. We expect that this work will generate important <strong>in</strong>formation for<br />
the development <strong>of</strong> similar approaches to the human bra<strong>in</strong>.
Nome Flavia Valtorta<br />
Contatti<br />
Tel.<br />
E mail<br />
Flavia Valtorta, Fabio Grohovaz, Daniele Zacchetti<br />
02-2643-4826 (Valtorta) 4811 (Grohovaz), 4817 (Zacchetti)<br />
valtorta.flavia@hsr.it, grohovaz.fabio@hsr.it, zacchetti.daniele@hsr.it<br />
Istituto/Dipartimento San Raffaele Scientific Institute, Division <strong>of</strong> Neuroscience<br />
Via Olgett<strong>in</strong>a 58<br />
20132 Milano, ITALT<br />
Proposta di ricerca.<br />
Molecular mechanisms <strong>in</strong> neurotrasmission: effects <strong>of</strong> neuron and glia phenotypes <strong>in</strong> synaptic efficiency and<br />
synaptopathy<br />
Comprehensive goal <strong>of</strong> our <strong>research</strong> is the elucidation <strong>of</strong> the molecular mechanisms that underlie communications<br />
between cells <strong>of</strong> the bra<strong>in</strong>, both <strong>in</strong> the adult and dur<strong>in</strong>g development. This proposal <strong>in</strong>volves the complementary<br />
expertise and the tight collaboration <strong>of</strong> two <strong>research</strong> units: the NEUROPSYCHOPHARMACOLOGY UNIT (Flavia<br />
Valtorta) and the CELLULAR NEUROPHYSIOLOGY UNIT (Fabio Grohovaz and Daniele Zacchetti).<br />
The ma<strong>in</strong> form <strong>of</strong> communication between neurons is achieved at the synaptic level through regulated secretion <strong>of</strong><br />
neurotransmitter. This process is <strong>of</strong> paramount importance for <strong>in</strong>formation process<strong>in</strong>g <strong>in</strong> the central nervous system<br />
and is known to undergo dysfunction <strong>in</strong> a number <strong>of</strong> pathophysiological states. Substantial advancements have been<br />
made concern<strong>in</strong>g the identification <strong>of</strong> the prote<strong>in</strong>s <strong>in</strong>volved <strong>in</strong> the basic mechanism <strong>of</strong> neurotransmitter release.<br />
Much less is known about the molecules that participate to the assembly <strong>of</strong> the complex synaptic mach<strong>in</strong>ery dur<strong>in</strong>g<br />
development.<br />
Research <strong>in</strong> Valtorta’s group will develop along two ma<strong>in</strong> l<strong>in</strong>es: Aim 1: Diseases <strong>of</strong> synaptic orig<strong>in</strong>. The ma<strong>in</strong> focus will<br />
be on the family <strong>of</strong> the synaps<strong>in</strong>s and their l<strong>in</strong>k to epilepsy and autism. Synaps<strong>in</strong>s are a family <strong>of</strong> bra<strong>in</strong><br />
phosphoprote<strong>in</strong>s <strong>in</strong>volved <strong>in</strong> neurotransmitter release through regulation <strong>of</strong> synaptic vesicle availability. Recent data<br />
from the lab show that synaps<strong>in</strong>s have also an important function <strong>in</strong> the organization <strong>of</strong> synaptic contacts. Synaps<strong>in</strong><br />
KO mice develop an epileptic phenotype, and mutations <strong>in</strong> the human synaps<strong>in</strong> genes have been recently associated<br />
with epilepsy and autism spectrum disorders. The central <strong>in</strong>terest is to <strong>in</strong>vestigate the molecular roles <strong>of</strong> synaps<strong>in</strong> <strong>in</strong><br />
synapse formation and function, and how these roles relate to the development <strong>of</strong> bra<strong>in</strong> pathology. Another project<br />
concerns the identification <strong>of</strong> novel molecular <strong>in</strong>teractors <strong>of</strong> synucle<strong>in</strong> and <strong>of</strong> their role <strong>in</strong> neurodegeneration<br />
associated with Park<strong>in</strong>son disease.<br />
Aim 2: Membrane traffick<strong>in</strong>g <strong>in</strong> neuronal development. The process that leads from undifferentiated, round neuronal<br />
precursors to fully differentiated, highly polarized neurons is extremely complex. Among the various phenomena<br />
driv<strong>in</strong>g this process, those associated with membrane traffick<strong>in</strong>g are <strong>of</strong> fundamental importance. The group is<br />
<strong>in</strong>terested <strong>in</strong> study<strong>in</strong>g membrane traffick<strong>in</strong>g <strong>in</strong> the very early steps <strong>of</strong> neuronal development. In this respect, they<br />
have identified a process <strong>of</strong> developmentally-regulated, high-capacity endocytosis as one <strong>of</strong> the earliest marker <strong>of</strong><br />
neuronal polarity, and will <strong>in</strong>vestigate its function <strong>in</strong> neuronal commitment and axon pathf<strong>in</strong>d<strong>in</strong>g. This <strong>in</strong>vestigation<br />
will be extended to the phenotypical characterization <strong>of</strong> the early steps <strong>of</strong> neuronal commitment <strong>of</strong> neural<br />
stem/progenitor cells and iPS (<strong>in</strong>duced-pluripotent stem cells). In the same cells, the late steps <strong>of</strong> neuronal<br />
development will also be studied, i.e. the formation <strong>of</strong> synapses and their functional ref<strong>in</strong>ement, which are essential<br />
phenomena for the proper <strong>in</strong>tegration <strong>of</strong> cells <strong>in</strong> neuronal networks.<br />
The work <strong>in</strong> Grohovaz’s <strong>research</strong> unit is focused on the general comprehension <strong>of</strong> the physiopathological<br />
mechanisms underly<strong>in</strong>g neuroprotection or lead<strong>in</strong>g to neurodegeneration. The group mostly uses bra<strong>in</strong> primary<br />
cultures and applys molecular biology and <strong>in</strong> vitro cellular approaches, <strong>in</strong>clud<strong>in</strong>g live cell imag<strong>in</strong>g (calcium imag<strong>in</strong>g<br />
and total <strong>in</strong>ternal reflection microscopy). Electrophysiology and animal behavioral studies are conducted <strong>in</strong><br />
collaboration with other <strong>research</strong> groups.<br />
A ma<strong>in</strong> project deals with the generation <strong>of</strong> oxidative stress and the ensu<strong>in</strong>g protection mechanisms <strong>in</strong> both neurons<br />
and astrocytes. In particular, the mechanisms <strong>of</strong> iron entry and its <strong>in</strong>fluence on the production <strong>of</strong> reactive oxygen<br />
species are <strong>in</strong>vestigated. On the other hand, <strong>in</strong> light <strong>of</strong> the importance <strong>of</strong> neuro<strong>in</strong>flammation, <strong>in</strong>terest is also directed<br />
to the role <strong>of</strong> glia <strong>in</strong> the neurodegenerative processes. More specifically, the molecular mechanisms <strong>in</strong>volved <strong>in</strong> the<br />
process <strong>of</strong> glia activation and the <strong>in</strong>fluence the activated phenotype has on neuronal survival are <strong>in</strong>vestigated.<br />
Along with the study <strong>of</strong> these general physiopathological mechanisms, the group addresses specific issues with<strong>in</strong> the<br />
follow<strong>in</strong>g disease-oriented projects:<br />
(i) Alzheimer’s disease pathogenesis: the regulation <strong>of</strong> BACE1/BACE2 expression; the implication <strong>of</strong> beta-secretase<br />
activity on amyloid-beta deposition; the cellular effects <strong>of</strong> the various amyloid-beta forms on different cell types from<br />
bra<strong>in</strong>.<br />
(ii) Derangement <strong>in</strong> <strong>in</strong>tracellular iron homeostasis and hereditary ferrit<strong>in</strong>opathy: analysis <strong>of</strong> the mechanisms <strong>of</strong> iron
entry; cytotoxic effects <strong>of</strong> iron overload; cellular effects <strong>of</strong> ferrit<strong>in</strong> light cha<strong>in</strong> mutations.<br />
(iii) Pathogenesis <strong>of</strong> neuronopathic (type A) Niemann-Pick disease: role <strong>of</strong> sph<strong>in</strong>gosylphosphochol<strong>in</strong>e on changes <strong>in</strong><br />
astrocytic phenotype; impairment <strong>of</strong> neuronal function.<br />
Area di <strong>in</strong>teresse identificata Synaptic disfunction and neuron-glia <strong>in</strong>terplay<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto Research unit <strong>in</strong> Molecular Neuroscience<br />
Ente f<strong>in</strong>anziatore I.I.T. (Istituto <strong>Italian</strong>o di Tecnologia)<br />
Durata progetto 5 years (2008-2012); 600'000 EUR<br />
Abstract del progetto<br />
Neurotransmitter release from nerve end<strong>in</strong>gs is the ma<strong>in</strong> form <strong>of</strong> <strong>in</strong>formation<br />
transfer from one neuron to another or to an effector cell. Release occurs by<br />
exocytosis from storage organelles, the synaptic vesicles, and is triggered by the<br />
action potential-<strong>in</strong>duced depolarization <strong>of</strong> the nerve term<strong>in</strong>al. The project pivots<br />
on the idea that synapses perform an electro-chemical computation <strong>of</strong> both local<br />
and environmental signals they receive. In this respect, a key role is played by<br />
astrocytes, the close partners <strong>of</strong> neurons that, upon stimulation, release a<br />
number <strong>of</strong> neurotransmitters and signal<strong>in</strong>g molecules. The development <strong>of</strong> these<br />
processes is <strong>in</strong>vestigated by develop<strong>in</strong>g and exploit<strong>in</strong>g <strong>in</strong>novative molecular<br />
imag<strong>in</strong>g approaches.
Nome Maurizio Popoli<br />
Contatti<br />
Tel.<br />
E mail<br />
Tel: +390250318361<br />
E-mail: maurizio.popoli@unimi.it<br />
Istituto/Dipartimento Center <strong>of</strong> Neuropharmacology, Department <strong>of</strong> Pharmacological Sciences,<br />
CEND, University <strong>of</strong> Milan<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse identificata 1A. Presynaptic molecular mach<strong>in</strong>ery regulat<strong>in</strong>g glutamate release as<br />
pathophysiological mechanism <strong>in</strong> amyotrophic lateral sclerosis<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto
Nome Daniela Tardito<br />
Contatti<br />
Tel.<br />
E mail<br />
Tel: +390250318382<br />
E-mail: daniela.tardito@unimi.it<br />
Istituto/Dipartimento Center <strong>of</strong> Neuropharmacology, Department <strong>of</strong> Pharmacological Sciences, CEND,<br />
University <strong>of</strong> Milan<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse identificata 1A. Toward exploit<strong>in</strong>g the screen<strong>in</strong>g potential <strong>of</strong> miRNome for the<br />
identification <strong>of</strong> genes and pathways <strong>in</strong>volved <strong>in</strong> neurodegenerative disorders<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
The regulation <strong>of</strong> neuroplasticity <strong>in</strong> the response to therapeutic drugs for mood<br />
disorders. The role <strong>of</strong> micro RNAs<br />
Cariplo Foundation<br />
March 2010-february 2013<br />
Aim <strong>of</strong> this project is to <strong>in</strong>vestigate, by means <strong>of</strong> an <strong>in</strong>tegrated approach that<br />
merges precl<strong>in</strong>ical and cl<strong>in</strong>ical studies with up-todate bio<strong>in</strong>formatic,<br />
pharmacological, genomic and genetic techniques, the role <strong>of</strong> the posttranscriptional<br />
regulators miRNAs <strong>in</strong> Mood Disorders aetiology and<br />
antidepressant response, with regard to neuroplasticity.<br />
Overall, the ma<strong>in</strong> objectives <strong>of</strong> the present project will be:<br />
1. to clarify the role <strong>of</strong> miRNAs <strong>in</strong> the molecular effects <strong>of</strong> different<br />
antidepressants on the posttranscriptional modulation <strong>of</strong> genes cod<strong>in</strong>g for<br />
modulators <strong>of</strong> neuroplasticity with an <strong>in</strong>tegrate approach based on precl<strong>in</strong>ical<br />
and cl<strong>in</strong>ical studies.<br />
2. to discover new molecular targets for the development <strong>of</strong> <strong>in</strong>novative<br />
therapeutic strategies for the treatment <strong>of</strong> drug resistant depression<br />
3. to identify molecular markers associated to the antidepressant response <strong>in</strong><br />
human peripheral tissues for the optimization <strong>of</strong> drug treatment <strong>in</strong> mood<br />
disorders. The <strong>in</strong>tegration <strong>of</strong> data obta<strong>in</strong>ed <strong>in</strong> cl<strong>in</strong>ical and precl<strong>in</strong>ical studies will<br />
permit the validation <strong>of</strong> blood leucocytes as cellular models for the study <strong>of</strong><br />
mental disorders<br />
4. to identify new susceptibility genes and pharmacogenetic markers for<br />
optimization <strong>of</strong> treatment <strong>in</strong> mood disorders.
Nome Maria Pennuto, PhD<br />
Contatti<br />
Phone: +39 010 71781793, Fax: +39 010 720321<br />
email: maria.pennuto@iit.it<br />
Istituto/Dipartimento <strong>Italian</strong> Institute <strong>of</strong> Technology, Department <strong>of</strong> Neuroscience and Bra<strong>in</strong><br />
Technology, Genoa 16163, Italy<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse identificata<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Mechanisms <strong>of</strong> Neurodegeneration<br />
Identification <strong>of</strong> signal<strong>in</strong>g pathways <strong>in</strong> neurodegenerative prope<strong>in</strong>opathies<br />
Bra<strong>in</strong> fold<strong>in</strong>g diseases, <strong>in</strong>clud<strong>in</strong>g Alzheimer’s disease, amyotrphic lateral sclerosis,<br />
and polyglutam<strong>in</strong>e (polyQ) diseases, are neurodegenerative disorders<br />
characterized by the accumulation <strong>of</strong> toxic aggregation-prone prote<strong>in</strong>s (Bertram<br />
and Tanzi, 2005; Ross and Poirier, 2004; Taylor et al., 2002). PolyQ diseases are a<br />
family <strong>of</strong> n<strong>in</strong>e neurodegenerative disorders, <strong>in</strong>clud<strong>in</strong>g sp<strong>in</strong>al and bulbar muscular<br />
atrophy (SBMA). These disorders are caused by expansion <strong>of</strong> glutam<strong>in</strong>e tracts <strong>in</strong><br />
n<strong>in</strong>e genes, such as androgen receptor (AR). The mechanism through which the<br />
mutation causes neurodegeneration is not known. Despite the ubiquitous<br />
distribution <strong>of</strong> the disease prote<strong>in</strong>s, neurons are especially vulnerable to<br />
expanded polyQ. Moreover, specific populations <strong>of</strong> neurons are affected <strong>in</strong> each<br />
polyQ disease. This suggests that the polyQ tract cannot be the sole determ<strong>in</strong>ant<br />
<strong>of</strong> disease pathogenesis. Among polyQ diseases, SBMA represents an example<br />
where the disease prote<strong>in</strong> strik<strong>in</strong>gly dictates disease features. SBMA is<br />
characterized by the loss <strong>of</strong> lower motor neurons and skeletal muscle atrophy. In<br />
SBMA, only males are fully affected. Gender-specificity is the result <strong>of</strong> the<br />
conversion <strong>of</strong> polyQ AR <strong>in</strong>to a toxic species <strong>in</strong>duced by b<strong>in</strong>d<strong>in</strong>g to its natural<br />
ligand testosterone. AR is a hormone-activated transcription factor. The<br />
mechanism through which ligand b<strong>in</strong>d<strong>in</strong>g converts polyQ AR <strong>in</strong>to a neurotoxic<br />
molecule is unknown. Our long-term goal is to make a mean<strong>in</strong>gful contribution<br />
to our understand<strong>in</strong>g <strong>of</strong> the molecular mechanisms <strong>of</strong> neurodegeneration <strong>in</strong><br />
bra<strong>in</strong> fold<strong>in</strong>g diseases, so that treatment may be developed. Our objective is to<br />
characterize the impact <strong>of</strong> prote<strong>in</strong> context, cell context, and native prote<strong>in</strong><br />
function on polyQ toxicity. We will test the central hypothesis that the toxicity <strong>of</strong><br />
polyQ AR is <strong>in</strong>fluenced at the post-translational level by phosphorylation <strong>of</strong><br />
specific residues <strong>in</strong> the disease prote<strong>in</strong>, by tissue-specificity <strong>of</strong> disease prote<strong>in</strong><br />
expression, and by aberrant prote<strong>in</strong> function, e.g. <strong>in</strong>teraction with transcription<br />
co-factors and DNA. Greater <strong>in</strong>sights <strong>in</strong>to the molecular mechanisms underly<strong>in</strong>g<br />
the pathogenesis <strong>of</strong> polyQ diseases is important to develop<strong>in</strong>g novel and<br />
effective therapeutic strategies for these diseases (reviewed by Pennuto and<br />
Fischbeck, 2009).<br />
TARGETING ANDROGEN RECEPTOR FOR DEVELOPMENT OF SBMA THERAPEUTICS<br />
Ente f<strong>in</strong>anziatore Muscular Dystrophy Association (USA)<br />
Durata progetto 01/07/2008 to 30/06/2011<br />
Abstract del progetto<br />
The objectives <strong>of</strong> the MDA application are to identify post−translational<br />
modifications, such as phosphorylation, ubiquitylation, and SUMOylation <strong>of</strong> AR<br />
that reduce the toxicity <strong>of</strong> mutant prote<strong>in</strong>, and to use this <strong>in</strong>formation to develop<br />
effective therapeutic <strong>in</strong>terventions. We propose to accomplish these objectives<br />
by pursu<strong>in</strong>g the follow<strong>in</strong>g three specific Aims:<br />
To determ<strong>in</strong>e the impact <strong>of</strong> prote<strong>in</strong> k<strong>in</strong>ase A phosphorylation, ubiquitylation, and
SUMOylation on the toxicity <strong>of</strong> mutant AR.<br />
To evaluate the therapeutic efficacy <strong>of</strong> IGF−1 <strong>in</strong> vivo.<br />
To select an effective system to deliver IGF-1 to SBMA mice.<br />
Titolo progetto<br />
POLYGLUTAMINE DISEASES: IMPACT OF PROTEIN AND CELL CONTEXT ON<br />
NEUROTOXICITY<br />
Ente f<strong>in</strong>anziatore FP7−PEOPLE−2009−RG: Marie Curie International Re<strong>in</strong>tegration Grant<br />
Durata progetto 01/04/2010 to 31/03/2014<br />
Abstract del progetto<br />
The objectives <strong>of</strong> this proposal are to characterize the impact <strong>of</strong> three<br />
components to polyglutam<strong>in</strong>e toxicity: 1) prote<strong>in</strong> context; 2) aberrant<br />
prote<strong>in</strong>−prote<strong>in</strong> <strong>in</strong>teractions; and 3) cell context. We will test<br />
the central hypothesis that the toxicity <strong>of</strong> polyglutam<strong>in</strong>e AR is <strong>in</strong>fluenced at the<br />
post−translational level by phosphorylation <strong>of</strong> specific residues <strong>in</strong> the disease<br />
prote<strong>in</strong>, by aberrant <strong>in</strong>teraction with the Akt effector FOXO, and by<br />
tissue−specificity <strong>of</strong> disease prote<strong>in</strong> expression.<br />
Titolo progetto<br />
INTERPLAY BETWEEN ANDROGENIC/ANABOLIC STEROID AND IGF-1 SIGNALING<br />
IN AMYOTROPHIC LATERAL SCLEROSIS<br />
Ente f<strong>in</strong>anziatore Thierry Latran Foundation (France)<br />
Durata progetto 01/01/2011 to 31/12/2012<br />
Abstract del progetto<br />
The objectives <strong>of</strong> this study are to i) Determ<strong>in</strong>e the effect <strong>of</strong> androgens and the<br />
related anabolic steroid nandrolone <strong>in</strong> ALS pathogenesis; and ii) Characterize the<br />
molecular cross−talk between androgens and<br />
muscle−specific mIGF−1 <strong>in</strong> the ma<strong>in</strong>tenance <strong>of</strong> muscle phenotype.<br />
Titolo progetto<br />
INSULIN−LIKE GROWTH FACTOR 1/AKT AND ANDROGEN SIGNALING CROSSTALK<br />
IN THE PATHOGENESIS OF SPINAL AND BULBAR MUSCULAR ATROPHY<br />
Ente f<strong>in</strong>anziatore Telethon-Italy<br />
Durata progetto 01/01/2011 to 31/12/2013<br />
Abstract del progetto<br />
The objective <strong>of</strong> this application is to elucidate how phosphorylation <strong>of</strong> mutant<br />
AR by Akt is regulated. The central hypothesis <strong>of</strong> this application is that<br />
phosphorylation <strong>of</strong> mutant AR by Akt is altered by polyglutam<strong>in</strong>e expansion,<br />
ligand b<strong>in</strong>d<strong>in</strong>g and age and that this modification is coord<strong>in</strong>ated with other<br />
post−translational modifications, <strong>in</strong>clud<strong>in</strong>g methylation and palmitoylation.
Nome Tanganelli Sergio<br />
Contatti<br />
tgs@unife.it<br />
Istituto/Dipartimento Dept. <strong>of</strong> Cl<strong>in</strong>ical and Experimental Medic<strong>in</strong>e<br />
Pharmacology Section, University <strong>of</strong> Ferrara, Italy<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse identificata<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
Mechanisms <strong>of</strong> Neurodegeneration : A. Macromolecular <strong>in</strong>teractions and<br />
Neurodegeneration<br />
Neurotens<strong>in</strong> and neurotens<strong>in</strong> antagonist <strong>in</strong> an animal model <strong>of</strong> Park<strong>in</strong>son’s<br />
disease: therapeutic perspectives and role <strong>of</strong> NMDA/neurotens<strong>in</strong> <strong>in</strong>teraction.<br />
San<strong>of</strong>i-Aventis<br />
2007-2010<br />
The tridecapeptide neurotens<strong>in</strong> (NT) significantly enhances glutamatergic<br />
signal<strong>in</strong>g <strong>in</strong> different bra<strong>in</strong> areas and amplifies the NMDA-receptor signal<strong>in</strong>g,<br />
probably by activat<strong>in</strong>g the high-aff<strong>in</strong>ity neurotens<strong>in</strong> receptor (NTS1), as shown by<br />
the NTS1receptor antagonist SR48692-<strong>in</strong>duced counteraction <strong>of</strong> this effect.<br />
These f<strong>in</strong>d<strong>in</strong>gs suggest a re<strong>in</strong>forc<strong>in</strong>g action <strong>of</strong> NT on several functions exerted by<br />
glutamate <strong>in</strong> the central nervous system, <strong>in</strong> particular on the glutamatemediated<br />
excitotoxicity. NT could be implicated <strong>in</strong> the pathogenesis <strong>of</strong> chronic<br />
and acute neurodegenerative disorders, such as Park<strong>in</strong>son’s disease. To further<br />
<strong>in</strong>vestigate this hypothesis, the aims <strong>of</strong> the project, which will comb<strong>in</strong>e<br />
biochemical, functional, morphological and behavioral experiments, will be<br />
evaluate: 1) the putative neuroprotective effects <strong>of</strong> a pretreatment with SR48692<br />
(systemically adm<strong>in</strong>istered) <strong>in</strong> an animal model <strong>of</strong> Park<strong>in</strong>son’s disease [unilateral<br />
6-hydroxydopam<strong>in</strong>e (6-OHDA) lesion]; 2) the functional and physio-pathological<br />
relevance <strong>of</strong> NMDA/NT receptor <strong>in</strong>teractions <strong>in</strong> the striatum <strong>of</strong> naïve and 6-<br />
OHDA -lesioned rats.
1. MECHANISMS OF NEURODEGENERATION<br />
B. Neurotoxic stimuli
Nome Domenico Garozzo<br />
Contatti<br />
domenico.garozzo@cnr.it<br />
0957338259 3473576202<br />
Istituto/Dipartimento CNR ICTP Catania<br />
Via Gaifami 18 95125 Catania<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse identificata<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Glycomics<br />
CSF Glycomics <strong>in</strong> AD and other neurodegenerative diseases<br />
Ente f<strong>in</strong>anziatore MIUR (Italy)<br />
Durata progetto 3 years<br />
Abstract del progetto Prote<strong>in</strong> glycosylation is the most common among post-translational<br />
modifications (PTMs), which are key to the regulation <strong>of</strong> functional<br />
activities <strong>of</strong> prote<strong>in</strong>s. Quantitative and qualitative <strong>in</strong>formation about PTM<br />
stages <strong>of</strong> prote<strong>in</strong>s is crucial <strong>in</strong> the discovery <strong>of</strong> biomarkers <strong>of</strong> disease.<br />
Macroheterogeneity <strong>of</strong> prote<strong>in</strong> glycosylation depends on the extent <strong>of</strong><br />
glycosylation site occupancy while microheterogeneity refers to<br />
differences <strong>in</strong> the sugar cha<strong>in</strong> structures.<br />
Differences <strong>of</strong> prote<strong>in</strong> glycosylation may be <strong>in</strong>dicative <strong>of</strong> species<br />
synthesized <strong>in</strong> the central nervous system with respect to serum liverderived<br />
glyc<strong>of</strong>orms, [as already demonstrated for prote<strong>in</strong> Reel<strong>in</strong>, which is<br />
implicated <strong>in</strong> Alzheimer disease and <strong>in</strong> other neurodegenerative disorders<br />
(Botella-Lopez et al., 2006)]. Recent <strong>in</strong>sights <strong>in</strong>to neurodegenerative<br />
disorders caused by abnormal glycosylation <strong>of</strong> prote<strong>in</strong> Seip<strong>in</strong><br />
(Seip<strong>in</strong>opathy) show that modifications <strong>of</strong> Seip<strong>in</strong> glycosylation result <strong>in</strong><br />
improper fold<strong>in</strong>g lead<strong>in</strong>g to accumulation <strong>of</strong> the abnormal prote<strong>in</strong> <strong>in</strong> the<br />
endoplasmic reticulum, formation <strong>of</strong> ubiquit<strong>in</strong>ated <strong>in</strong>clusion, and<br />
activation <strong>of</strong> UPR (Ito and Suzuki, 2009).<br />
Prelim<strong>in</strong>ary <strong>in</strong>vestigations based on lect<strong>in</strong>-blott<strong>in</strong>g <strong>of</strong> CSF glycoprote<strong>in</strong>s<br />
revealed quantitative modifications <strong>in</strong> Alzheimer disease and altered<br />
glycosylation <strong>of</strong> CSF transferr<strong>in</strong> (Taniguchi et al. 2008). We apply mass<br />
spectrometry based glycomics <strong>of</strong> CSF as potential tool for to detect<br />
possible macro-and microheterogeneity <strong>of</strong> CSF glycoprote<strong>in</strong>s associated<br />
to Alzheimer disease. The availability <strong>of</strong> CSF depository from patients<br />
with AD and related disorders and established <strong>in</strong>teractions with cl<strong>in</strong>ical<br />
platforms will make possible to translate the results to cl<strong>in</strong>ical<br />
proteomics.<br />
The objective is to f<strong>in</strong>d out specific prote<strong>in</strong> posttranslational<br />
modifications related to glycosylation which <strong>in</strong> turn might be related to<br />
the analysed cellular phenomena associated to neurodegeneration.
Nome Maurizio Taglialatela, MD PhD – Pr<strong>of</strong>essor <strong>of</strong> Pharmacology<br />
Claudio Russo, PhD – Associate Pr<strong>of</strong>essor <strong>of</strong> Pharmacoloy<br />
Alfonso Di Costanzo MD – Associate Pr<strong>of</strong>essor <strong>of</strong> Neurology<br />
Giovanni Scapagn<strong>in</strong>i MD PhD – Associate Pr<strong>of</strong>essor <strong>of</strong> Cl<strong>in</strong>ical<br />
Biochemistry<br />
Contatti Email: m.taglialatela@unimol.it Tel. +39-0874-404894/4851/4891<br />
Istituto/Dipartimento Dept. <strong>of</strong> Health Science, University <strong>of</strong> Molise, Via De Sanctis, 8610<br />
Campobasso - ITALY<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse<br />
identificata<br />
Intracellular signall<strong>in</strong>g dur<strong>in</strong>g neurodegenerative events triggered upon APP<br />
overexpression. The overexpression and the aberrant process<strong>in</strong>g <strong>of</strong> the amyloid<br />
precursor prote<strong>in</strong> (APP) is a central event <strong>in</strong> the pathogenesis <strong>of</strong> Alzheimer’s Disease<br />
(AD). Recent data suggest that the neuronal death that occurs <strong>in</strong> different<br />
neurodegenerative conditions may arise from an aberrant signal related to cell cycle<br />
re-activation <strong>in</strong> postmitotic neurons. We are currently <strong>in</strong>vestigat<strong>in</strong>g the role <strong>of</strong> APP<br />
and <strong>of</strong> Aβ peptides as signall<strong>in</strong>g molecules <strong>in</strong>volved <strong>in</strong> MAPK and cell cycle<br />
activation. We propose to study a specific molecular signall<strong>in</strong>g <strong>in</strong>volv<strong>in</strong>g APP and its<br />
proteolytic process<strong>in</strong>g by BACE1 and Presenil<strong>in</strong>s, whose failure could expla<strong>in</strong> at the<br />
same time the formation <strong>of</strong> Aβ, the <strong>in</strong>duction <strong>of</strong> cell cycle and neuronal dysfunction<br />
observed <strong>in</strong> the development <strong>of</strong> AD.<br />
• Venezia V. et al., Amyloid precursor prote<strong>in</strong> and presenil<strong>in</strong> <strong>in</strong>volvement <strong>in</strong> cell<br />
signal<strong>in</strong>g. <strong>Neurodegenerative</strong> Diseases. 2007, 4 (2-3): 101-111.<br />
• Nizzari M. et al., Amyloid precursor prote<strong>in</strong> and Presenil<strong>in</strong>1 <strong>in</strong>teract with the<br />
adaptor GRB2 and modulate ERK 1,2 signal<strong>in</strong>g. The Journal <strong>of</strong> Biological Chemistry.<br />
2007, 282 (18): 13833-13844.<br />
Involvement <strong>of</strong> vascular factors as modulators <strong>of</strong> APP process<strong>in</strong>g and signal<strong>in</strong>g. The<br />
complex <strong>in</strong>teraction between vascular components and tissue homeostasis is<br />
particularly relevant <strong>in</strong> the bra<strong>in</strong> for the survival <strong>of</strong> vulnerable and irreplaceable<br />
postmitotic neurons. It is debated whether the presence <strong>of</strong> vascular deposits <strong>of</strong> Aβ<br />
peptides might represent a cause <strong>of</strong> oxidative stress and a predispos<strong>in</strong>g condition<br />
toward the development <strong>of</strong> dementia, or rather a protective endothelial mechanism.<br />
In this context we are <strong>in</strong>vestigat<strong>in</strong>g the role <strong>of</strong> vascular components such as<br />
thromb<strong>in</strong> and apolipoprote<strong>in</strong>E as modulators <strong>of</strong> endothelial process<strong>in</strong>g <strong>of</strong> APP, <strong>in</strong> Aβ<br />
formation and <strong>in</strong> Aβ-<strong>in</strong>duced toxicity/protection.<br />
• Russo C. et al., Opposite roles <strong>of</strong> apolipoprote<strong>in</strong> E <strong>in</strong> normal bra<strong>in</strong>s and <strong>in</strong><br />
Alzheimer’s disease. Proc. Natl. Acad. Sci, 1998, 95 15598-15602.<br />
• Russo C. et al. Presenil<strong>in</strong>-1 mutations <strong>in</strong> Alzheimer's disease. Nature. 2000; 405<br />
(6786):531-532.<br />
• Russo C. et al., The amyloid precursor prote<strong>in</strong> and its network <strong>of</strong> <strong>in</strong>teract<strong>in</strong>g<br />
prote<strong>in</strong>s: physiological and pathological implications. Bra<strong>in</strong> Res Bra<strong>in</strong> Res Rev. 2005<br />
48 (2): 257-264.<br />
Role <strong>of</strong> specific classes <strong>of</strong> ion channels <strong>in</strong> AD-related neurodegeneration.<br />
Intracellular potassium concentrations play a key role <strong>in</strong> cell survival. A decrease <strong>in</strong><br />
cytoplasmic [K+]i, ma<strong>in</strong>ly caused by an <strong>in</strong>creased activity <strong>of</strong> plasma membrane<br />
voltage-gated potassium channels, triggers cell death. Changes <strong>in</strong> K+channel activity
play a major pathogenetic role <strong>in</strong> many neurodegenerative disorders, <strong>in</strong>clud<strong>in</strong>g<br />
Alzheimer’s<br />
disease (AD). In fact, β-amyloid fragments (Aβ) alter the properties <strong>of</strong> K+ currents <strong>in</strong><br />
mammalian neurons. We have described a selective modulation <strong>of</strong> a neuronal K+<br />
channel (Kv3.4) upon Aβ exposure and we have shown that the <strong>in</strong>hibition <strong>of</strong> this<br />
channel prevents cell death triggered by the neurotoxic stimulus. We are currently<br />
<strong>in</strong>vestigat<strong>in</strong>g the potential neuroprotective role <strong>of</strong> Kv3.4 blockers <strong>in</strong> several models<br />
<strong>of</strong> AD-related neurodegeneration..<br />
• Pannaccione A., et al. Nuclear factor-kappaB activation by reactive oxygen<br />
species mediates voltage-gated K+ current enhancement by neurotoxic betaamyloid<br />
peptides <strong>in</strong> nerve growth factor-differentiated PC-12 cells and<br />
hippocampal neurones. J Neurochem. 2005 Aug;94(3):572-86.<br />
• Pannaccione A, et al. Up-regulation and <strong>in</strong>creased activity <strong>of</strong> KV3.4 channels and<br />
their accessory subunit M<strong>in</strong>K-related peptide 2 <strong>in</strong>duced by amyloid peptide are<br />
<strong>in</strong>volved <strong>in</strong> apoptotic neuronal death. Mol Pharmacol. 2007 Sep;72(3):665-73.<br />
Oxidative stress as a pathogenetic mechanisms and therapeutic target for<br />
Alzheimer Disease. Reduction <strong>of</strong> cellular expression and activity <strong>of</strong> antioxidant<br />
prote<strong>in</strong>s lead<strong>in</strong>g to oxidative stress are fundamental causes for bra<strong>in</strong> ag<strong>in</strong>g and<br />
neurodegenerative diseases. Deregulation <strong>of</strong> the antioxidant prote<strong>in</strong> Heme<br />
oxygenase-1 (HO-1) has been associated with the pathogenesis <strong>of</strong> Alzheimer's<br />
disease, multiple sclerosis and bra<strong>in</strong> ag<strong>in</strong>g. Moreover, a number <strong>of</strong> experimental and<br />
epidemiological studies have recently supported the beneficial effects <strong>of</strong> some<br />
commonly used natural products such as curcum<strong>in</strong>, possibly by <strong>in</strong>creas<strong>in</strong>g the<br />
activity <strong>of</strong> the HO-1 prote<strong>in</strong>. Curcum<strong>in</strong> has been reported to decrease oxidative<br />
damage and amyloid deposition <strong>in</strong> a transgenic mouse model <strong>of</strong> Alzheimer's disease,<br />
and to reverse Aβ-<strong>in</strong>duced cognitive deficits and neuropathology <strong>in</strong> rats. We are<br />
currently <strong>in</strong>vestigat<strong>in</strong>g the potential neuroprotective role and the underly<strong>in</strong>g<br />
mechanisms, <strong>of</strong> HO-1-<strong>in</strong>duc<strong>in</strong>g natural compounds <strong>in</strong> various <strong>in</strong> vitro and <strong>in</strong> vivo<br />
models <strong>of</strong> AD.<br />
• Scapagn<strong>in</strong>i G. et al., Caffeic acid phenethyl ester and curcum<strong>in</strong>: a novel class <strong>of</strong><br />
hemeoxygenase-1 <strong>in</strong>ducers. Mol Pharmacol. 2002, 61(3):554-61.<br />
• Scapagn<strong>in</strong>i G. et al., Ethyl ferulate, a lipophilic polyphenol, <strong>in</strong>duces HO-1 and<br />
protects rat neurons aga<strong>in</strong>st oxidative stress. Antioxid Redox Signal. 2004, 6(5):811-<br />
8.<br />
• Scapagn<strong>in</strong>i G. et al., Curcum<strong>in</strong> activates defensive genes and protects neurons<br />
aga<strong>in</strong>st oxidative stress. Antioxid Redox Signal. 2006, 8(3-4):395-403.<br />
Physical exercise and cognitive decl<strong>in</strong>e. Epidemiological studies have shown that<br />
physical exercise can delay the occurrence and the progression <strong>of</strong> dementia, but also<br />
to improve physical, cognitive and psychological performances, with a positive<br />
impact on the quality <strong>of</strong> life. The mechanisms <strong>in</strong>volved and the identification <strong>of</strong><br />
potential biomarkers predictive <strong>of</strong> a positive response to physical activity are areas<br />
<strong>of</strong> <strong>in</strong>tense <strong>in</strong>vestigation. In our group, we are currently <strong>in</strong>vestigat<strong>in</strong>g the potential<br />
preventive role <strong>of</strong> physical exercise programs on cognitive decl<strong>in</strong>e <strong>in</strong> subjects at risk<br />
to develop dementia. Our focus will be on subjects present<strong>in</strong>g with a subjective<br />
memory disturbance or affected by mild cognitive impairment (MCI).<br />
• Tedeschi G., et al. Bra<strong>in</strong> atrophy and lesion load <strong>in</strong> a large population <strong>of</strong> patients<br />
with multiple sclerosis. Neurology. 2005 Jul 26;65(2):280-5.<br />
• Tedeschi G., et al. Correlation between fatigue and bra<strong>in</strong> atrophy and lesion load<br />
<strong>in</strong> multiple sclerosis patients <strong>in</strong>dependent <strong>of</strong> disability. J Neurol Sci. 2007 Dec<br />
15;263(1-2):15-9.
F<strong>in</strong>anziamenti ricevuti<br />
Titolo<br />
progetto<br />
Ente<br />
f<strong>in</strong>anziatore<br />
Durata<br />
progetto<br />
Abstract del<br />
progetto<br />
Titolo<br />
progetto<br />
Ente<br />
f<strong>in</strong>anziatore<br />
Durata<br />
progetto<br />
Abstract del<br />
progetto<br />
Regulation <strong>of</strong> K + channels by APP-<strong>in</strong>teract<strong>in</strong>g prote<strong>in</strong>s: functional characterization and<br />
implications for AD-related neurodegeneration<br />
Regione Campania (2000-2003)<br />
3 years<br />
Recent experimental evidence suggest that K + channels play a major pathogenetic role <strong>in</strong><br />
Alzheimer disease. In the CNS, phosphorylation <strong>of</strong> voltage-gated K+ channels by tyros<strong>in</strong>e<br />
k<strong>in</strong>ases (PTK) is a fundamental process regulat<strong>in</strong>g their functional activity; its <strong>in</strong>hibition<br />
exerts a neuroprotective action <strong>in</strong> several experimental models <strong>of</strong> neuronal damage. On<br />
the other hand, the expression <strong>of</strong> several subclasses <strong>of</strong> K + channels can reduce cellular<br />
tyros<strong>in</strong>e k<strong>in</strong>ase activity, thus suggest<strong>in</strong>g the existence <strong>of</strong> a reciprocal <strong>in</strong>teraction between<br />
PTKs/PTPases and K + channels. Given that the cytosolic doma<strong>in</strong> <strong>of</strong> β-APP <strong>in</strong>fluences,<br />
through its adaptor prote<strong>in</strong>s Dab (disabled), X11 and Fe65, the tyros<strong>in</strong>e k<strong>in</strong>ase activity <strong>of</strong><br />
Abl, <strong>in</strong> the present proposal we will:<br />
A. Evaluate the potential modulation <strong>of</strong> several classes <strong>of</strong> K + channels (Kv1.2, Kv1.3, Kv1.5,<br />
Kv2.1, ERG, KCNQ2+3) by adaptor prote<strong>in</strong>s able to b<strong>in</strong>d to β-APP (X11, Fe65, Dab).<br />
B. Verify the participation <strong>of</strong> tyros<strong>in</strong>e k<strong>in</strong>ase activity (and <strong>in</strong> particular <strong>of</strong> Abl), <strong>in</strong> this<br />
modulation.<br />
C. Investigate the potential <strong>in</strong>volvement <strong>of</strong> these channels <strong>in</strong> the cellular damage <strong>in</strong>duced<br />
by the hyperexpression <strong>of</strong> β-APP adaptor prote<strong>in</strong>s.<br />
D. Study the participation <strong>of</strong> K + channels and their regulation by oxidative stress <strong>in</strong> the<br />
neuronal death triggered by various cellular models <strong>of</strong> AD-related neurodegeneration.<br />
European Community contract N° LSHM-CT-2003-503330/Apopis : Abnormal prote<strong>in</strong>s <strong>in</strong><br />
the pathogenesis <strong>of</strong> neurodegenerative disorders<br />
Study on tyros<strong>in</strong>e phosphorylation <strong>of</strong> APP and its <strong>in</strong>teraction with <strong>in</strong>tracellular adaptors:<br />
role <strong>in</strong> cell signal<strong>in</strong>g and <strong>in</strong> the generation <strong>of</strong> amyloidogenic fragments.<br />
European Community<br />
3 years (2004-2007)<br />
With<strong>in</strong> the WP 1 Generation and Turnover, our proposal is aimed to the def<strong>in</strong>ition <strong>of</strong> the<br />
role that posttrasductional modifications <strong>of</strong> APP, <strong>in</strong> particular its phosphorylation, may<br />
exert on its pathophysiologycal function. We will <strong>in</strong>vestigate both the role <strong>of</strong><br />
phosphorylated APP/CTFs <strong>in</strong> cell signal<strong>in</strong>g, and/or <strong>in</strong> the generation <strong>of</strong> amyloidogenic<br />
fragments and plaques through the <strong>in</strong>teraction with <strong>in</strong>tracellular adaptors, as well as the<br />
effect that site-specific tyr-phosphorylation would have on the direct amyloidogenic<br />
pathway <strong>of</strong> APP. These studies, which are focused <strong>in</strong> a completely new aspect <strong>of</strong> APP<br />
activity, would lead to the identification <strong>of</strong> early markers <strong>of</strong> the neurodegenerative process<br />
which occurs <strong>in</strong> AD, and to the def<strong>in</strong>ition <strong>of</strong> a potentially <strong>in</strong>novative therapeutical approach<br />
based on the f<strong>in</strong>d<strong>in</strong>gs obta<strong>in</strong>ed. Our proposal is aimed at:<br />
Aim 1) To study directly <strong>in</strong> human bra<strong>in</strong> the tyr-phosphorylation <strong>of</strong> APP and its CTFs and<br />
their possible coupl<strong>in</strong>g with <strong>in</strong>tracellular adaptors such as ShcA, and to correlate these data<br />
with the presence <strong>of</strong> neuropathologycal hallmarks <strong>of</strong> the disease. The comparative analysis<br />
<strong>in</strong> non-AD control, AD and/or Down’s syndrome subjects at different ages (from fetal to<br />
adult life) will allow a deeper characterization <strong>of</strong> the molecular determ<strong>in</strong>ants dur<strong>in</strong>g the
progression <strong>of</strong> the disease.<br />
Aim 2) To study <strong>in</strong> transgenic mice carry<strong>in</strong>g APP and PS1 mutations the tyrphosphorylation<br />
<strong>of</strong> APP and CTFs, their <strong>in</strong>teraction with ShcA-Grb2 adaptors and the<br />
<strong>in</strong>fluence that such <strong>in</strong>teraction could have on plaque formation, astroglial response,<br />
neuronal death. The use <strong>of</strong> a Tg model will allow at a deeper comprehension <strong>of</strong> the<br />
possible correlation between APP phosphorylation, its cleavage, signal<strong>in</strong>g activity and<br />
progressive presence <strong>of</strong> the typical hallmarks <strong>of</strong> the disease. Moreover, <strong>in</strong> this model is<br />
possible also to determ<strong>in</strong>e the effect that APP and PS1 mutations, which are l<strong>in</strong>ked with a<br />
human familial phenotype, would cause <strong>in</strong> the above mentioned parameters, and, <strong>in</strong> a<br />
second step, would allow the application <strong>of</strong> targeted therapeutical pharmacological<br />
approaches follow<strong>in</strong>g also the <strong>in</strong>dications raised from the <strong>in</strong> vitro studies (aim 3).<br />
Aim 3) To study <strong>in</strong> neuronal and/or glial cell cultures the molecular mechanisms which<br />
regulate APP phosphorylation, <strong>in</strong>fluence on cleavage by secretases, coupl<strong>in</strong>g with<br />
<strong>in</strong>tracellular adaptors, and signal<strong>in</strong>g activity. Us<strong>in</strong>g APP mutants, ShcA mutants, and APP<br />
KO cells we will def<strong>in</strong>e the <strong>in</strong>fluence that phosphorylation and <strong>in</strong>teraction with ShcA would<br />
cause <strong>in</strong> signal<strong>in</strong>g activity, cell proliferation and death, and <strong>in</strong> the generation <strong>of</strong><br />
amyloidogenic fragments. Moreover, the study <strong>of</strong> the effect that proliferative and<br />
apoptotic stimuli may cause on those parameters and/or with the study <strong>of</strong> the k<strong>in</strong>ases<br />
<strong>in</strong>volved <strong>in</strong> the activation <strong>of</strong> APP cleavage and signal<strong>in</strong>g, this would also lead to the<br />
identification <strong>of</strong> pharmacological target for a therapeutical <strong>in</strong>tervention.
Nome MARIO MARCHI<br />
Contatti marchi@pharmatox.unige.it<br />
Istituto/Dipartimento Department <strong>of</strong> Experimental Medic<strong>in</strong>e (Di.Me.S.)<br />
Section <strong>of</strong> Pharmacology and Toxicology<br />
Viale Cembrano, 4 16147 Genova ITALY +39 010 3532657 e.mail:<br />
Proposta di ricerca<br />
Effect <strong>of</strong> Age and neurodegenerative disorders on central neurotransmission: focus on neurotransmitter<br />
release from neurons and glia<br />
The effects <strong>of</strong> age and/or neurodegenerative disorders may differentially <strong>in</strong>fluence diverse cell types <strong>in</strong><br />
the bra<strong>in</strong> and the vulnerability <strong>of</strong> neurons may depend also on the transmitter system or the location <strong>in</strong><br />
neural circuits. Therefore, it is <strong>of</strong> utmost importance to identify age-<strong>in</strong>duced neurochemical changes <strong>in</strong> the<br />
bra<strong>in</strong> <strong>in</strong> order to develop pharmacological strategies that can prevent, delay or counteract the cognitive<br />
decl<strong>in</strong>e.<br />
Cells may be differentially sensitive accord<strong>in</strong>g to the function <strong>of</strong> signal<strong>in</strong>g pathways that mediate cell<br />
specific processes <strong>in</strong>volved <strong>in</strong> cognition (e.g. synaptic plasticity). Systemic <strong>in</strong>fluences <strong>of</strong> <strong>in</strong>flammation can<br />
also alter the local milieu to <strong>in</strong>fluence different cell populations. Our current <strong>research</strong>es are focused to<br />
assess the current status <strong>of</strong> synaptic function/dysfunction <strong>in</strong> ag<strong>in</strong>g and age-related neurodegenerative<br />
diseases <strong>in</strong> several regions <strong>of</strong> the bra<strong>in</strong> <strong>in</strong> mammals, particularly <strong>in</strong> rodents .It is now well accepted that<br />
astrocytes <strong>in</strong>tegrate and process synaptic <strong>in</strong>formation and control synaptic transmission and plasticity<br />
be<strong>in</strong>g active partners <strong>in</strong> synaptic function, astrocytes are cellular elements <strong>in</strong>volved <strong>in</strong> the process<strong>in</strong>g,<br />
transfer and storage <strong>of</strong> <strong>in</strong>formation by the nervous system. Therefore our studies are aimed at<br />
<strong>in</strong>vestigat<strong>in</strong>g “ex-vivo” changes <strong>of</strong> neuronal and glial functions due to “<strong>in</strong>-vivo” ag<strong>in</strong>g or <strong>in</strong> the animal<br />
models <strong>of</strong> neurodegenerative disorders (i.eAlzheimer;) The pivotal concept <strong>of</strong> this approach assumes that<br />
“<strong>in</strong>-vivo” ag<strong>in</strong>g or the neurodegenerative disorders are able to modify the plasticity <strong>of</strong> chemical synapses<br />
which <strong>in</strong> turn could be reta<strong>in</strong>ed, and then analyzed, <strong>in</strong> the “ex-vivo” tissue preparations. This “ex-vivo”<br />
memory has been already described to occur and studied <strong>in</strong> our laboratory to unmask neurotransmission<br />
modifications caused by “<strong>in</strong>-vivo” exposure to different stimuli.( i.e. chronic treatment with drugs,<br />
enriched environment, etc.). Our <strong>research</strong> is therefore focused to <strong>in</strong>vestigate whether and to what extent<br />
ag<strong>in</strong>g and age-related neurodegenerative diseases (i.e. Alzheimer) could modify some fundamental<br />
parameters, such as neurotransmitter release and uptake, receptor expression and function<strong>in</strong>g <strong>in</strong> plasma<br />
membranes, moreover we will <strong>in</strong>vestigate the effect <strong>of</strong> beta amyloid on these parameters by utiliz<strong>in</strong>g two<br />
“ex-vivo” functional preparations representative <strong>of</strong> neurons and astrocytes , i.e. the isolated nerve<br />
term<strong>in</strong>als (synaptosomes) and the glial subcellular particles (gliosomes).<br />
Area di <strong>in</strong>teresse identificata<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Plasticità dei recettori pres<strong>in</strong>aptici nicot<strong>in</strong>ici e glutammatergici che<br />
modulano la liberazione di neurotrasmettitori: studio delle variazioni<br />
delle loro risposte funzionali dopo trattamenti cronici o <strong>in</strong> seguito ad<br />
<strong>in</strong>terazioni con altri sistemi recettoriali o altre condizioni sperimentali<br />
Role: Pr<strong>in</strong>cipal Investigator<br />
Ente f<strong>in</strong>anziatore MIUR-pr<strong>in</strong><br />
Durata progetto<br />
Abstract del progetto<br />
24 MESI<br />
Titolo progetto<br />
Studies on the effect <strong>of</strong> the chronic treatment with nicot<strong>in</strong>e on some
neurochemical presynaptic mechanisms and on the function <strong>of</strong><br />
presynaptic receptors <strong>in</strong> the CNS.<br />
Role: Pr<strong>in</strong>cipal Investigator<br />
Ente f<strong>in</strong>anziatore COMPAGNIA DI SAN PAOLO<br />
Durata progetto 36 MESI<br />
Titolo progetto Les plant aromatique, entre environment et activitè productive<br />
Role . Pr<strong>in</strong>cipal Investigator<br />
Ente f<strong>in</strong>anziatore ALCOTRA “AROMA”<br />
Durata progetto 24 MESI
Nome Dr. Francesca Ruberti<br />
Contatti<br />
f.ruberti@<strong>in</strong>mm.cnr.it; INMM- CNR Istituto di Neurobiologia e Medic<strong>in</strong>a<br />
Molecolare Via del Fosso di Fiorano, 64 00143 ROMA ITALY Phone: + 39<br />
06 501 703 236 Fax: + 39 06 501 703 313<br />
Istituto/Dipartimento Institute <strong>of</strong> Neurobiology and Molecular Medic<strong>in</strong>e CNR<br />
Proposta di ricerca<br />
NEUROBIOLOGY OF ALZHEIMER’S DISEASE<br />
1) Basic <strong>research</strong> : develop<strong>in</strong>g competitive <strong>in</strong> vitro and <strong>in</strong> vivo models to study Alzheimer’s Disease<br />
a) Role <strong>of</strong> microRNAs <strong>in</strong> Alzheimer’s Disease onset and progression (C. Barbato, C Cogoni, F. Ruberti)<br />
Primary neuronal cell culture and Alzheimer’s Disease (AD) mouse models, <strong>in</strong>clud<strong>in</strong>g AD11 (and transgenic<br />
mice overexpress<strong>in</strong>g pathogenic variants <strong>of</strong> human APP gene, will be <strong>in</strong>strumental to <strong>in</strong>vestigate the<br />
function <strong>of</strong> selected miRNAs (by their overexpression and/or <strong>in</strong>hibition) on disease pathogenesis. Studies<br />
will focus on recently identified microRNAs modulat<strong>in</strong>g, <strong>in</strong> neuronal hippocampus cultures (Vilardo et al.<br />
2010), APP production and on miRNAs dysregulated <strong>in</strong> human AD bra<strong>in</strong> (Barbato et al 2009).<br />
Multidiscipl<strong>in</strong>ary approaches will be used to <strong>in</strong>vestigate the effect <strong>of</strong> microRNAs on molecular mechanisms<br />
underly<strong>in</strong>g amyloidogenesis, neuronal degeneration, memory loss, synaptic plasticity impairment.<br />
Vilardo E, Barbato C, Ciotti MT, Cogoni C, Ruberti F. MicroRNAs regulate Alzheimer’s Amyloid Precursor<br />
Prote<strong>in</strong> expression <strong>in</strong> hippocampal neurons. (2010) submitted.<br />
Barbato C, Ruberti F, Cogoni C. Search<strong>in</strong>g for MIND: microRNAs <strong>in</strong> neurodegenerative diseases. J Biomed<br />
Biotechnol. 2009:871313.<br />
Barbato C, Ruberti F, Pieri M, Vilardo E, Costanzo M, Ciotti MT, Zona C, Cogoni C. MicroRNA-92 modulates<br />
K(+) Cl(-) co-transporter KCC2 expression <strong>in</strong> cerebellar granule neurons. J Neurochem. 2009 Dec 26.<br />
b) Mechanisms underly<strong>in</strong>g the effect <strong>of</strong> N-term<strong>in</strong>al 26-230 tau fragment on synaptic dysfunction and<br />
neurodegeneration (N. Canu, <strong>in</strong> collaboration with V. Cestari, F. Tirone, E Mattei). The aim is is to decode<br />
the signal transduction pathway that l<strong>in</strong>ks N-term<strong>in</strong>al 26-230 tau fragment (N-tau) expression to NMDAR<br />
activity (Canu et al 1998; Amadoro et al 2006) and their upstream and downstream effectors <strong>in</strong>duc<strong>in</strong>g<br />
synaptotoxicity and plasticity failure. Electrophysiological record<strong>in</strong>g <strong>of</strong> NMDAR and AMPAR biochemical<br />
characterization <strong>of</strong> NMDAR complex, morphological, qualitative and quantitative analysis <strong>of</strong> synapse<br />
number, dendritic sp<strong>in</strong>es and behavioral analysis <strong>of</strong> conditional N-tau transgenic mice, will be performed<br />
to give an accurate and global view <strong>of</strong> the molecular events <strong>in</strong>volved <strong>in</strong> N-tau modulation <strong>of</strong> neuronal<br />
plasticity.<br />
Canu N, Dus L, Barbato C, Ciotti MT, Brancol<strong>in</strong>i C, R<strong>in</strong>aldi AM, Novak M, Cattaneo A, Bradbury A, Calissano<br />
P. Tau cleavage and dephosphorylation <strong>in</strong> cerebellar granule neurons undergo<strong>in</strong>g apoptosis. J Neurosci.<br />
1998 Sep 15;18(18):7061-74.<br />
Amadoro G, Seraf<strong>in</strong>o AL, Barbato C, Ciotti MT, Sacco A, Calissano P, Canu N. (2004) Role <strong>of</strong> N-term<strong>in</strong>al tau<br />
doma<strong>in</strong> <strong>in</strong>tegrity on the survival <strong>of</strong> cerebellar granule neurons. Cell Death Differ. 2004 Feb;11(2):217-30.<br />
Amadoro G, Ciotti MT, Costanzi M, Cestari V, Calissano P, Canu N. NMDA receptor mediates tau-<strong>in</strong>duced<br />
neurotoxicity by calpa<strong>in</strong> and ERK/MAPK activation.Proc Natl Acad Sci U S A. 2006 103(8):2892-7<br />
c) Nerve Growth Factor deprivation pathways lead<strong>in</strong>g to Alzheimer’s Disease phenotype (C. Matrone, P.<br />
Calissano). An NGF-dependent hippocampal neuronal model <strong>in</strong> which the <strong>in</strong>terruption <strong>in</strong> NGF supply<br />
quickly triggers amyloidogenesis and <strong>in</strong>duces tau prote<strong>in</strong> dysfunction and neuronal degeneration,<br />
mimick<strong>in</strong>g essential features <strong>of</strong> <strong>in</strong> vivo AD pathology, has been recently charachterised (Matrone et al.<br />
2008; Matrone et al 2009; Amadoro et al 2009). The ma<strong>in</strong> goal is to to test whether the prote<strong>in</strong>s whose<br />
expression or phosphoylation is affected by NGF deprivation may represent early molecular signature and<br />
potential targets <strong>of</strong> AD. To achieve these results, studies are <strong>in</strong> progress, <strong>in</strong> collaboration with pr<strong>of</strong>. Moses<br />
Chao at NYU, to characterize the phosphotyros<strong>in</strong>e-associated signall<strong>in</strong>g events due to NGF deficit <strong>in</strong><br />
primary cultures from wild type and APPk/o mice by a systematic MS/SILAC.
Matrone C, Ciotti MT, Mercanti D, Marolda R, Calissano P. NGF and BDNF signal<strong>in</strong>g control amyloidogenic<br />
route and Abeta production <strong>in</strong> hippocampal neurons.Proc Natl Acad Sci U S A. 2008 105:13139-44.<br />
Matrone C, Marolda R, Ciafrè S, Ciotti MT, Mercanti D, Calissano P. Tyros<strong>in</strong>e k<strong>in</strong>ase nerve growth factor<br />
receptor switches from prosurvival to proapoptotic activity via Abeta-mediated phosphorylation. Proc Natl<br />
Acad Sci U S A. 2009 106: 11358-63.<br />
Amadoro G, Corsetti V, Ciotti MT, Florenzano F, Capsoni S, Amato G, Calissano P. Endogenous Abeta causes<br />
cell death via early tau hyperphosphorylation. Neurobiol Ag<strong>in</strong>g. 2009 Jul 21.<br />
d) Role <strong>of</strong> NH2-26-44 tau peptide <strong>in</strong> Alzheimer’s Disease (G. Amadoro P Calissano). A synthesized NH2-26-<br />
44 peptide <strong>of</strong> tau, impairs the mitochondrial oxidative phosphorylation and reduces the <strong>in</strong>tracellular ATP<br />
bioavailability, probably act<strong>in</strong>g on aden<strong>in</strong>e nucleotide translocator (ANT)- mediated ADP/ATP exchange<br />
(Atlante et al., 2008). Studies <strong>in</strong> AD human tissues are focused to evaluate if tau peptide i) is correlated<br />
with the extent <strong>of</strong> neur<strong>of</strong>ibrillary degeneration and amyloid neuropathology, especially Abeta pre-fibrillar<br />
species; (ii) is l<strong>in</strong>ked to the synaptic changes and to the mitochondrial functional alterations. The physical<br />
<strong>in</strong>teraction between ANT and NH2-derived tau fragment, <strong>in</strong> pathologically relevant conditions, will be<br />
<strong>in</strong>vestigated.<br />
Atlante A, Amadoro G, Bobba A, de Bari L, Corsetti V, Pappalardo G, Marra E, Calissano P, Passarella S. A<br />
peptide conta<strong>in</strong><strong>in</strong>g residues 26-44 <strong>of</strong> tau prote<strong>in</strong> impairs mitochondrial oxidative phosphorylation act<strong>in</strong>g at<br />
the level <strong>of</strong> the aden<strong>in</strong>e nucleotide translocator. Biochim Biophys Acta. 2008 1777, 1289-300<br />
e) Mitochondrial damage and genetic risk/susceptibility factors <strong>in</strong> Alzheimer’s Disease (M. R<strong>in</strong>aldi, S.<br />
Iurescia, D. Fioretti). The aim <strong>of</strong> the <strong>research</strong> project is i) to identify and characterize early biomarkers and<br />
mechanisms <strong>of</strong> mitochondrial damage promoted by ROS/RNS; ii) to <strong>in</strong>vestigate the protective role <strong>of</strong><br />
natural forms and synthetic analogues <strong>of</strong> vitam<strong>in</strong> E that can be tested <strong>in</strong> <strong>in</strong>tervention studies <strong>in</strong> AD<br />
patients. Studies are <strong>in</strong> progress to evaluate post-transductional modifications (PTMs) <strong>in</strong> mitochondrial<br />
prote<strong>in</strong>s, caused by ROS/RNS <strong>in</strong> <strong>in</strong> vitro model <strong>of</strong> senescence and human neuroblastoma as well as <strong>in</strong><br />
peripheral cells from subjects with Mild Cognitive Impairment (MCI) and AD. Strong genetic<br />
risk/susceptibility factors for develop<strong>in</strong>g Alzheimer’s disease, such as ApoE4 that impacts on Abeta<br />
production, Abeta clearance, Abeta fibrillation and tangle formation as well as on mitochondrial functions<br />
lead<strong>in</strong>g to neuronal toxicity and synaptic damage, are also <strong>in</strong>vestigated.<br />
Iurescia S, Fioretti D, Mangialasche F, R<strong>in</strong>aldi M.The Pathological Cross Talk Between Apolipoprote<strong>in</strong> E and<br />
Amyloid-beta Peptide <strong>in</strong> Alzheimer's Disease:Emerg<strong>in</strong>g Gene-Based Therapeutic Approaches. J Alzheimers<br />
Dis. 2010 In press<br />
2) Basic <strong>research</strong> : New treatment strategies based on Neurotroph<strong>in</strong>s<br />
f) Ocular NGF adm<strong>in</strong>istration as a novel non <strong>in</strong>vasive approach to protect bra<strong>in</strong>-NGF target neurons that<br />
degenerate <strong>in</strong> Alzheimer’s disease (L. Aloe, P. Tirassa). Nerve growth factor and (NGF) is a soluble prote<strong>in</strong><br />
that plays a protective role on bra<strong>in</strong> neurons that degenerate <strong>in</strong> age-related bra<strong>in</strong> disorders, <strong>in</strong>clud<strong>in</strong>g<br />
Alzheimer’s disease (AD). We have shown that conjunctively applied NGF can protect <strong>in</strong>jured bra<strong>in</strong><br />
neurons and damaged ret<strong>in</strong>al ganglion neurons suggest<strong>in</strong>g that topical eye NGF application might be a<br />
novel alternative for deliver<strong>in</strong>g NGF <strong>in</strong>to the bra<strong>in</strong> and for protect<strong>in</strong>g bra<strong>in</strong> neurons and reduc<strong>in</strong>g memory<br />
deficits occurr<strong>in</strong>g dur<strong>in</strong>g early events <strong>of</strong> AD and glaucoma. This hypothesis is currently actively under<br />
<strong>in</strong>vestigation <strong>in</strong> collaboration with other <strong>research</strong> groups.<br />
Lambiase A, Pagani L, Di Fausto V, Sposato V, Coass<strong>in</strong> M, Bon<strong>in</strong>i S, Aloe L. Nerve growth factor eye drop<br />
adm<strong>in</strong>istrated on the ocular surface <strong>of</strong> rodents affects the nucleus basalis and septum: biochemical and<br />
structural evidence. Bra<strong>in</strong> Res. 2007;1127:45-51.<br />
Di Fausto V, Fiore M, Tirassa P, Lambiase A, Aloe L. Eye drop NGF adm<strong>in</strong>istration promotes the recovery <strong>of</strong><br />
chemically <strong>in</strong>jured chol<strong>in</strong>ergic neurons <strong>of</strong> adult mouse forebra<strong>in</strong>. Eye drop NGF adm<strong>in</strong>istration promotes<br />
the recovery <strong>of</strong> chemically <strong>in</strong>jured chol<strong>in</strong>ergic neurons <strong>of</strong> adult mouse forebra<strong>in</strong>. Eur J Neurosci.<br />
2007;26:2473-80. Lambiase A, Aloe L, Cent<strong>of</strong>anti M, Parisi V, Mantelli F, Colafrancesco V,<br />
Manni GL, Bucci MG, Bon<strong>in</strong>i S, Levi-Montalc<strong>in</strong>i R. Experimental and cl<strong>in</strong>ical evidence <strong>of</strong> neuroprotection by
nerve growth factor eye drops: Implications for glaucoma. Proc Natl Acad Sci U S A, 2009; 109: 13469-<br />
13474,.<br />
g) Electro-acupuncture and polyphenols as novel approaches to reduce neurodegeneration ( L Manni, M<br />
Fiore). Prelim<strong>in</strong>ary data <strong>in</strong>dicate that diabetes <strong>in</strong>duced <strong>in</strong> adult rats by <strong>in</strong>jection with streptozotoc<strong>in</strong> causes<br />
a decrease <strong>of</strong> bra<strong>in</strong> NGF and a concomitant <strong>in</strong>crease <strong>of</strong> tau phosphorylation, that were all counteracted by<br />
low-frequency electro-acupuncture (EA). Us<strong>in</strong>g molecular and behavioural approaches the <strong>research</strong><br />
project will be aimed at: i) Investigate the possible l<strong>in</strong>k between diabetes, bra<strong>in</strong> NGF presence/activity and<br />
the development <strong>of</strong> AD-associated pathological features; ii) Study the effect <strong>of</strong> EA on the above mentioned<br />
diabetes-associated bra<strong>in</strong> dysfunction. Alcoholism is related to neurodegeneration and diabetes. The use<br />
<strong>of</strong> polyphenols extracted by olive oil, olive leaves and olive seeds or by grapes (Fiore et al 2009) to prevent<br />
or limit mouse bra<strong>in</strong> neurodegeneration due to ag<strong>in</strong>g or ethanol consumption will be evaluated.<br />
Manni L, Aloe L, Fiore M. Changes <strong>in</strong> cognition <strong>in</strong>duced by social isolation <strong>in</strong> the mouse are restored by<br />
electro-acupuncture. Physiol Behav. 2009;98(5):537-42<br />
Fiore M, Laviola G, Aloe L, di Fausto V, Manc<strong>in</strong>elli R, Ceccanti M. Early exposure to ethanol but not red w<strong>in</strong>e<br />
at the same alcohol concentration <strong>in</strong>duces behavioral and bra<strong>in</strong> neurotroph<strong>in</strong> alterations <strong>in</strong> young and<br />
adult mice. Neurotoxicology. 2009;30(1):59-71.<br />
h) Human neural stem cells lentivirally transduced with human BDNF (C. Cenciarelli, P. Casalbore). A<br />
strong body <strong>of</strong> evidences show that BDNF result critically <strong>in</strong>volved <strong>in</strong> Alzheimer’s and Hunt<strong>in</strong>gton’s<br />
diseases. Recently, it has been shown that BDNF knockdown with<strong>in</strong> NSC abolishes the cognitive benefits <strong>of</strong><br />
NSC delivery. The aim is to use propagat<strong>in</strong>g human neural stem cells (hNSC) lentivirally transduced with<br />
human BDNF as cellular therapy for replac<strong>in</strong>g degenerat<strong>in</strong>g neurons <strong>in</strong> disease, trauma and toxic <strong>in</strong>sults.<br />
Cenciarelli C, Budoni M, Mercanti D, Fernandez E, Pall<strong>in</strong>i R, Aloe L, Cim<strong>in</strong>o V, Maira G, Casalbore P. In vitro<br />
analysis <strong>of</strong> mouse neural stem cells genetically modified to stably express human NGF by a novel multigenic<br />
viral expression system. Neurol Res. 2006, 28:505-12.<br />
Casalbore P, Barone I, Felsani A, D’Agnano I, Michetti F, Maira G and Cenciarelli C. Neural stem cells<br />
modified to express BDNF antagonize trimethylt<strong>in</strong>-<strong>in</strong>duced neurotoxicity through PI3K/Akt and MAP k<strong>in</strong>ase<br />
pathways . Accepted on J. Cell. Physiol. 2010.<br />
OTHER NEURODEGENERATIVE DISEASES<br />
Basic <strong>research</strong>, biobank<strong>in</strong>g (DNA), shar<strong>in</strong>g database, exchang<strong>in</strong>g and pool<strong>in</strong>g data<br />
i) Biobank compund by over 2000 DNAs from HD and ataxic patients and their families. Molecular basis<br />
<strong>of</strong> episodic ataxia (L. Veneziano). Research activity has been mostly devoted to CACNA1A gene, cod<strong>in</strong>g for<br />
the Alpha1A subunit <strong>of</strong> P/Q type Calcium channel expressed <strong>in</strong> bra<strong>in</strong>, from its physical map to the<br />
ref<strong>in</strong>ement <strong>of</strong> the gene structure to the screen<strong>in</strong>g for mutations <strong>in</strong> Episodic Ataxia (EA) to the association<br />
genotype/phenotype (Veneziano et al 2009; Mantuano et al 2010). This <strong>research</strong> allowed the construction<br />
<strong>of</strong> a DNA biobank from about 100 patients affected by EAs. The project is focused on the use Comparative<br />
Genomic Hybridization (CGH) arrays, which can be used for a screen<strong>in</strong>g <strong>of</strong> CACNA1A gene rearrangement<br />
<strong>in</strong> a sample <strong>of</strong> 40 EA patients <strong>in</strong> which CACNA1A gene po<strong>in</strong>t mutations were excluded. The fulfilment <strong>of</strong><br />
the above aim will improve the rate <strong>of</strong> molecularly diagnosed EA2 patients to be treated with known<br />
therapy or to be <strong>in</strong>cluded <strong>in</strong> new therapeutic trials.<br />
Veneziano L, Guida S, Mantuano E, Bernard P, Tarant<strong>in</strong>o P, Boccone L, Hisama FM, Carrera P, Jodice C,<br />
Frontali M. Newly characterised 5' and 3' regions <strong>of</strong> CACNA1A gene harbour mutations associated with<br />
Familial Hemiplegic Migra<strong>in</strong>e and Episodic Ataxia. J Neurol Sci. 2009, 276(1-2):31-7<br />
Mantuano E, Romano S, Veneziano L, Gellera C, Castellotti B, Caimi S, Testa D, Estienne M, Zorzi G, Bugiani<br />
M, Rajabally YA, Barc<strong>in</strong>a MJ, Servidei S, Panico A, Frontali M, Mariotti C.Identification <strong>of</strong> novel and<br />
recurrent CACNA1A gene mutations <strong>in</strong> fifteen patients with episodic ataxia type 2. J Neurol Sci. 2010 Feb 1.<br />
l) Role <strong>of</strong> the Thyroid Transcription Factor 1 (TTF-1) <strong>in</strong> neurodegenerative diseases (D. Civitareale). The<br />
Thyroid Transcription Factor 1 (TTF-1) expression persists <strong>in</strong> some post-mitotic basal forebra<strong>in</strong> neurons,<br />
and mutations <strong>of</strong> TiTF-1 have been associated with the benign hereditary chorea. Our transcriptome<br />
analysis confirms that TTF-1 is <strong>in</strong>volved <strong>in</strong> neuron morphogenesis, differentiation and GnRH secretion. We<br />
predict that TTF-1 could be a modifier gene <strong>in</strong>volved <strong>in</strong> the pathogenesis <strong>of</strong> the neurodegenerative<br />
diseases. Therefore, we propose to study TTF-1 down-regulation via RNAi and microarray analysis <strong>in</strong>
ST14A, select a mouse stra<strong>in</strong> able to develop the neurodegenerative disease <strong>in</strong> absence <strong>of</strong> Titf-1, and<br />
characterize the genotype/phenotype association <strong>of</strong> TiTF-1 <strong>in</strong> a cohort <strong>of</strong> patient with neurodegenerative<br />
diseases.<br />
Provenzano C, Veneziano L, Appleton R, Frontali M, Civitareale D. Functional characterization <strong>of</strong> a novel<br />
mutation <strong>in</strong> TITF-1 <strong>in</strong> a patient with benign hereditary chorea. J Neurol Sci. 2008 264(1-2):56-62.<br />
Provenzano C, Pascucci B, Lupari E and Civitareale D. Large scale analysis <strong>of</strong> transcription factor TTF-<br />
1/NKX2.1 target genes <strong>in</strong> GnRH secret<strong>in</strong>g cell l<strong>in</strong>e GT1-7. Molecular and Cellular Endocr<strong>in</strong>ology. In press.<br />
Area di <strong>in</strong>teresse identificata<br />
Basic <strong>research</strong> : develop<strong>in</strong>g competitive <strong>in</strong> vitro and <strong>in</strong> vivo models to<br />
study Alzheimer’s Disease; new treatment strategies based on<br />
Neurotroph<strong>in</strong>s. Biobank<strong>in</strong>g<br />
(DNA), shar<strong>in</strong>g database, exchang<strong>in</strong>g and pool<strong>in</strong>g data<br />
F<strong>in</strong>anziamenti ricevuti Role <strong>of</strong> microRNAs <strong>in</strong> Alzheimer’s Disease onset and progression (C. Barbato, C<br />
Cogoni, F. Ruberti,).<br />
Ongo<strong>in</strong>g Research Support -3886<br />
SD/sd 2008.2404 Programma Neuroscienze “Compagnia di San Paolo” 9/01/09-9/01/11:<br />
‘MIND: MicroRNA In <strong>Neurodegenerative</strong> Diseases’ (to C. Barbato)<br />
-REGIONE LAZIO grant 2009-2011: ‘Studio delle basi molecolari della neurodegenerazione<br />
nella malattia di Alzheimer’- (to C.Cogoni).<br />
Completed Research Support -<br />
DG.RSTL.059.012 –CNR grant-01/2008-12/2009. “Study <strong>of</strong> APP regulation by microRNAs<br />
and implication <strong>in</strong> Alzheimer’s Disease” (to F. Ruberti)<br />
F<strong>in</strong>anziamenti ricevuti Mechanisms underly<strong>in</strong>g the effect <strong>of</strong> N-term<strong>in</strong>al 26-230 tau fragment on synaptic<br />
dysfunction and neurodegeration (N. Canu).<br />
Ongo<strong>in</strong>g Research Support -<br />
Dipartimento di Neuroscience, University <strong>of</strong> Tor Vergata<br />
Completed Research Support -<br />
MIUR-PRIN 2006-2008: “Molecular and behavioural analysis <strong>of</strong> tau neurotoxic effect <strong>in</strong><br />
cellular and animal models”<br />
-M<strong>in</strong>istero della Sanità- Ex Articolo 56 Neurodegenerativo 533F/B/1 2005-2009<br />
“Identificazione di marcatori biologici precoci per la demenza di Alzheimer: genomica e<br />
proteomica nella neurodegenerazione”<br />
F<strong>in</strong>anziamenti ricevuti Nerve Growth Factor deprivation pathways lead<strong>in</strong>g to Alzheimer’s Disease<br />
phenotype (C. Matrone, P. Calissano).<br />
Ongo<strong>in</strong>g Research Support -<br />
MIUR-FIRB Italy / 2009-2011<br />
“<strong>Italian</strong> Human Proteome Net” -<br />
MIUR-PRIN 2009/2011<br />
“Ruolo di Zn e Cu nella cascata amiloidogenica provocata da deprivazione di NGF”<br />
F<strong>in</strong>anziamenti ricevuti Role <strong>of</strong> NH2-26-44 tau peptide <strong>in</strong> Alzheimer Disease (G. Amadoro P. Calissano)<br />
Ongo<strong>in</strong>g Research Support -<br />
MIUR-FIRB 24-09-08 al 24-09-11: “<strong>Italian</strong> Human Proteome Net” -<br />
MIUR 18-07-2007 to 18-07-2010: “Neurotrophic and neuroprotective drugs suitable for<br />
therapeutic applications <strong>in</strong> neuroscience: AD,HD,SLA”<br />
F<strong>in</strong>anziamenti ricevuti Mitochondrial damage and genetic risk/susceptibility factors <strong>in</strong> Alzheimer’s
Disease (M. R<strong>in</strong>aldi, S. Iurescia, D. Fioretti).<br />
Ongo<strong>in</strong>g Research Support MIUR-<br />
PRIN 2007-2009: “Oxidative and nitrosative damage <strong>of</strong> mitochondrial prote<strong>in</strong>s <strong>in</strong> models<br />
<strong>of</strong> cell senescence and <strong>in</strong> subjects with Alzheimer's disease: a pre-cl<strong>in</strong>ical study on natural<br />
forms and new synthetic analogues <strong>of</strong> vitam<strong>in</strong> E.<br />
F<strong>in</strong>anziamenti ricevuti, Ocular NGF adm<strong>in</strong>istration as a novel non <strong>in</strong>vasive approach to protect bra<strong>in</strong>-<br />
NGF target neurons that degenerate <strong>in</strong> Alzheimer’s disease (P Tirassa, L Aloe)<br />
Ongo<strong>in</strong>g Research Support -<br />
Progetto PRIM- 2007-2010: “Sviluppo del NGF come farmaco <strong>in</strong> collirio: Studi di<br />
farmacoc<strong>in</strong>etica e di efficacia terapeutica”. (to L. Aloe) -<br />
Progetto Strategico Q77, ISS- 2007-2010: “Indicazioni di <strong>in</strong>dici neurobiologici di<br />
vulnerabilità a rischio di sviluppo di s<strong>in</strong>dromi depressive” (to L. Aloe). -<br />
Fondazione G.B. Bietti 2007-2009: “Potenziale ruolo terapeutico del NGF nel glaucoma:<br />
Studi <strong>in</strong> un modello animale e nell’uomo” (to L. Aloe) -<br />
CNR fund<strong>in</strong>g (PORRSTL03) 2006-2008 (to P. Tirassa)<br />
F<strong>in</strong>anziamenti ricevuti, Electro-acupuncture and polyphenols as novel approaches to reduce<br />
neurodegeneration (L Manni, M Fiore)<br />
Ongo<strong>in</strong>g Research Support Centro<br />
Alcologico Regione Lazio (to M. Fiore)<br />
F<strong>in</strong>anziamenti ricevuti, Human neural stem cells (hNSC) lentivirally transduced with human BDNF (C.<br />
Cenciarelli, P. Casalbore).<br />
Ongo<strong>in</strong>g Research Support Funds<br />
from ATENA Onlus (2009-2010): “Transplantation <strong>of</strong> BDNF secret<strong>in</strong>g-NSC <strong>in</strong> the<br />
hippocampus <strong>of</strong> adults rats treated with the neurotoxicant thrimetylt<strong>in</strong>.”<br />
Completed Research Support Grants<br />
from The Nando Peretti Foundation and ATENA Onlus (2006-2008) “Repair <strong>of</strong><br />
lesions <strong>of</strong> Central Nervous System through cell replacement therapy by us<strong>in</strong>g <strong>of</strong> NSC<br />
<strong>in</strong>duced towards to neuronal phenotypes.”<br />
F<strong>in</strong>anziamenti ricevuti, Biobank compund by over 2000 DNAs from HD and ataxic patients and their<br />
families and Molecular basis <strong>of</strong> episodic ataxia (L. Veneziano).<br />
Ongo<strong>in</strong>g Research Support National<br />
Ataxia Foundation 2009: “Look<strong>in</strong>g for gross rearrangements <strong>of</strong> CACNA1A gene <strong>in</strong> Episodic<br />
Ataxia type 2 (EA2) patients by Comparative Genomic Hybridization arrays.
Nome MARIAROSARIA MILOSO<br />
Contatti mariarosaria.miloso@unimib.it tel 0264488123<br />
Istituto/Dipartimento<br />
Proposta di ricerca<br />
Dipartimento di Neuroscienze e Tecnologie Biomediche<br />
Area di <strong>in</strong>teresse identificata EVALUATION OF MESENCHYMAL STEM CELLS (MSCs) EFFECT IN<br />
ALZHEIMER’S DISEASE RAT MODELS: <strong>in</strong> vitro and <strong>in</strong> vivo STUDIES<br />
Alzheimer’s disease (AD) is the most common cause <strong>of</strong> progressive<br />
decl<strong>in</strong>e <strong>of</strong> cognitive function <strong>in</strong> aged humans. At present, there are no<br />
effective therapies to treat this pathology. Recently it has been<br />
hypothesized an <strong>in</strong>novative therapeutic approach based on the use <strong>of</strong><br />
stem cells. Different sources <strong>of</strong> stem cells are be<strong>in</strong>g explored for potential<br />
use <strong>in</strong> repair<strong>in</strong>g neurodegenerative disorders. Among them,<br />
Mesenchymal Stem Cells (MSCs) represent a good cellular source for<br />
transplantation therapy. MSCs can be easily isolated and expanded,<br />
autologously used, present a low risk <strong>of</strong> tumorigenicity and are<br />
ipoimmunogenic.<br />
Aim <strong>of</strong> our project is to study the possible effect <strong>of</strong> human and rat MSCs<br />
<strong>in</strong> an <strong>in</strong> vitro and <strong>in</strong> vivo model <strong>of</strong> Alzheimer Disease (AD).<br />
In vitro model <strong>of</strong> AD is represented by rat cortical and hippocampal<br />
neuron primary cultures exposed to 2,5 µM Aβ (1-42) fibrils. To evaluate<br />
the capacity <strong>of</strong> MSCs to improve neuronal viability and AD<br />
neuropathological changes, we will perform: a) direct and <strong>in</strong>direct co-<br />
cultures <strong>of</strong> MSCs with Aβ-treated neurons; b) culture <strong>of</strong> Aβ-treated<br />
neurons <strong>in</strong> the presence <strong>of</strong> conditioned medium from MSCs. Neuronal<br />
survival will be evaluated by MTT assay, neuronal morphology and<br />
functionality will be assessed by morphological and immun<strong>of</strong>luorescence<br />
studies and electron microscopy.<br />
In vivo model <strong>of</strong> AD is represented by a transgenic rat model that develop<br />
spontaneously the AD pathology. The MSCs are prelabeled with Qdot<br />
nanocristal and than <strong>in</strong>oculated <strong>in</strong>to the rat tail ve<strong>in</strong>. After the MSCs<br />
<strong>in</strong>jection cognitive functions will be assessed by the Morris water maze<br />
test (Morris 1984). After the behavioral test, the rats will be sacrificed<br />
and the bra<strong>in</strong> will be obta<strong>in</strong>ed and further fixed. Sections <strong>of</strong> cortex and<br />
hippocampus will be cut <strong>in</strong> a freez<strong>in</strong>g microtome and AD
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
neuropathological changes will be evaluate by morphological and<br />
immun<strong>of</strong>luorescence studies and electron microscopy. MSC localization<br />
and differentiation will be evaluated by immun<strong>of</strong>luorescence<br />
experiments.
Nome Patrizia Hrelia, Full Pr<strong>of</strong>essor <strong>in</strong> Toxicology, Faculty <strong>of</strong> Pharmacy<br />
Contatti<br />
Via Irnerio 48, 40126 Bologna<br />
Tel.: +39 051 2091799<br />
e-mail: patrizia.hrelia@unibo.it<br />
Istituto/Dipartimento Department <strong>of</strong> Pharmacology , Alma Mater Studiorum - University <strong>of</strong><br />
Bologna<br />
Nome Silvana Hrelia, Associate Pr<strong>of</strong>essor <strong>in</strong> Biochemistry, Faculty <strong>of</strong><br />
Pharmacy<br />
Contatti<br />
Via Irnerio 48, 40126 Bologna<br />
Tel.: +39 051 2091233<br />
e-mail: silvana.hrelia@unibo.it<br />
Istituto/Dipartimento Department <strong>of</strong> Biochemistry, Alma Mater Studiorum - University <strong>of</strong><br />
Bologna<br />
Proposta di ricerca<br />
Our project is aimed at the identification <strong>of</strong> cellular and molecular targets affected by<br />
phytochemicals, to del<strong>in</strong>eate pharmacological and nutritional strategies for the reduction or the<br />
prevention <strong>of</strong> neurodegeneration and neuro<strong>in</strong>flammation associated to age<strong>in</strong>g and<br />
neurodegenerative diseases. The project is <strong>in</strong>novative s<strong>in</strong>ce it represents a jo<strong>in</strong>t action with the<br />
attempt:<br />
1) to adequately understand the cellular and molecular mechanisms command<strong>in</strong>g cell death <strong>in</strong><br />
neurodegeneration and beh<strong>in</strong>d neuroprotective effects <strong>of</strong> phytochemicals;<br />
2) to identify phytochemicals hav<strong>in</strong>g diverse pharmacological activities, such as neuroprotection and<br />
anti<strong>in</strong>flammation;<br />
3) to confirm if these phytochemicals have a specific pharmacological effectiveness <strong>in</strong> the<br />
prevention/counteraction <strong>of</strong> one <strong>of</strong> the most important ag<strong>in</strong>g-related neurodegeneration and<br />
neuro<strong>in</strong>flammation hallmarks, oxidative stress, as a primary prevention mechanism;<br />
4) to understand if these phytochemicals can act as biomodulators <strong>in</strong> neuronal cells through<br />
modulation <strong>of</strong> survival pathways, suggest<strong>in</strong>g a potential therapeutic use <strong>in</strong> regenerat<strong>in</strong>g <strong>in</strong>jured<br />
neuronal cells;<br />
5) to establish the therapeutic w<strong>in</strong>dow that allows an effectively impact <strong>of</strong> phytochemicals on<br />
specific targets;<br />
In longer terms, our studies will <strong>in</strong>dicate whether pharmacological and nutritional strategies with<br />
phytochemicals should be effective and safe <strong>in</strong> counteract<strong>in</strong>g cellular and molecular damage<br />
associated to human neurodegeneration and neuro<strong>in</strong>flammation.
Area di <strong>in</strong>teresse identificata New treatment strategies (Neurodegeneration and<br />
Neuroprotection)<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Drug Research and Development (CHEM-PROFARMA-NET).<br />
Synthesis, biological and pharmacological characterization <strong>of</strong><br />
organic molecules, bio-oligomers and natural compounds endowed<br />
with antidegenerative (neuro or cardiovascular) antiviral, and anti<strong>in</strong>fective<br />
activity.<br />
Ente f<strong>in</strong>anziatore MIUR FIRB – Piattaforme/Reti (total funds euro9.768.680,<br />
euro1.274.097 assigned to P.Hrelia as node coord<strong>in</strong>ator)<br />
Durata progetto 2007-2011<br />
Abstract del progetto<br />
The vision <strong>of</strong> the project is that <strong>of</strong> a strong collaborative efforts<br />
aimed at the identification <strong>of</strong> new cellular and molecular targets<br />
affected by synthetic or natural compounds to del<strong>in</strong>eate<br />
pharmacological and nutritional strategies for the prevention <strong>of</strong><br />
human diseases such as neurodegeneration, <strong>in</strong>fectious disease<br />
cancer, immune and metabolic disorders. The activities proposed<br />
will be completely performed <strong>in</strong> the Network Operative Units. This<br />
project is aimed at identify<strong>in</strong>g new drugs that may be useful <strong>in</strong><br />
prevent<strong>in</strong>g and/or alleviat<strong>in</strong>g the consequences <strong>of</strong> specific diseases,<br />
but it will focus on new therapeutic approaches for such disorders.<br />
Titolo progetto New Bioactive Molecules from Natural Sources <strong>in</strong> Neuroprotection:<br />
Opportunities In <strong>Neurodegenerative</strong> Diseases<br />
Ente f<strong>in</strong>anziatore MIUR COFIN 2007 (total funds euro 63.750 assigned to G. Cantelli<br />
Forti as Scientific Coord<strong>in</strong>ator, and S. Hrelia as Responsible <strong>of</strong><br />
Research Unit)<br />
Durata progetto 2008-2010<br />
Abstract del progetto<br />
The pathogenesis <strong>of</strong> age<strong>in</strong>g related neurodegenerative diseases,<br />
such as Alzheimer's (AD) or Park<strong>in</strong>son's (PD), is multifactorial with<br />
the existence <strong>of</strong> a "dom<strong>in</strong>o" cascade <strong>of</strong> neurotoxic events, which<br />
can be <strong>in</strong>itiated at any po<strong>in</strong>t <strong>in</strong> the cascade. Many l<strong>in</strong>es <strong>of</strong> evidence<br />
suggest that oxidative stress, result<strong>in</strong>g <strong>in</strong> ROS/RNS generation,<br />
mitochondrial dysfunction and activation <strong>of</strong> death/survival<br />
pathways play a pivotal role <strong>in</strong> the age-associated neuronal loss <strong>in</strong><br />
neurodegenerative diseases. Thus, promis<strong>in</strong>g future treatment <strong>of</strong><br />
neurodegenerative diseases depends on availability <strong>of</strong> effective<br />
bra<strong>in</strong> permeable, antioxidant neuroprotective drugs that would<br />
prevent the progression <strong>of</strong> neurodegeneration. An <strong>in</strong>novative<br />
approach to preventive/therapeutic <strong>in</strong>tervention <strong>in</strong> oxidative stress<br />
based neurodegeneration may be the manipulation <strong>of</strong> endogenous
cellular defence mechanisms by chemical <strong>in</strong>ducers, such as<br />
isothiocyanates from natural sources, among which sulforaphane<br />
(SF). Molecular and cellular mechanisms beh<strong>in</strong>d SF neuroprotection<br />
will be <strong>in</strong>itially studied <strong>in</strong> vitro, through an experimental approach<br />
which let us to evaluate neuroprotective and/or neurorescue effects<br />
by SF. Neuronal damage parameters at the cellular level will<br />
comprise the <strong>in</strong>duction <strong>of</strong> neuronal death <strong>in</strong> terms <strong>of</strong><br />
apoptosis/necrosis and the activation <strong>of</strong> cellular death/survival<br />
biochemical pathways. The scientifically important expectation <strong>of</strong><br />
this project, by provid<strong>in</strong>g data on the cellular and molecular<br />
mechanisms command<strong>in</strong>g cell death <strong>in</strong> neurodegeneration and<br />
beh<strong>in</strong>d neuroprotection by SF, is to provide a clear rationale for<br />
del<strong>in</strong>eat<strong>in</strong>g <strong>in</strong>novative pharmacological strategies to counteract and<br />
rescue neurodegeneration.
The <strong>research</strong> group<br />
Fondazione IRCCS Istituto Neurologico “Carlo Besta”<br />
Division <strong>of</strong> Neuropathology – Neurology 5<br />
Director: Fabrizio Tagliav<strong>in</strong>i<br />
The Division comprises (i) a Cl<strong>in</strong>ical Unit (Dementia Center) devoted to the diagnosis and treatment <strong>of</strong><br />
patients with degenerative dementias (over 2000 out-patients and 150 <strong>in</strong>-patients per year) and (ii) a<br />
Laboratory Unit dedicated to the analysis <strong>of</strong> genes and biomarkers associated with degenerative<br />
dementias, post-mortem characterization <strong>of</strong> the disease process and disease-specific prote<strong>in</strong>, and<br />
experimental studies on disease pathogenesis and the development <strong>of</strong> therapeutic strategies. The course<br />
<strong>of</strong> action <strong>of</strong> this activity can be expressed as a “Bed to Bench to Bed” cycle, with the ultimate goal to<br />
identify disease-modify<strong>in</strong>g drugs <strong>in</strong> precl<strong>in</strong>ical sett<strong>in</strong>gs and apply them to patients. In this regard, the<br />
Cl<strong>in</strong>ical Unit is currently coord<strong>in</strong>at<strong>in</strong>g a multicentre phase II cl<strong>in</strong>ical trial supported by AIFA, to test the<br />
effectiveness <strong>of</strong> an anti-amyloidogenic molecule identified <strong>in</strong> experimental models. This comprehensive<br />
approach has also the great advantage to collect biological samples (plasma, DNA, CSF and bra<strong>in</strong> tissue)<br />
from fully characterized patients. In this regard the Laboratory Unit is part <strong>of</strong> the Network <strong>of</strong> Exellence<br />
“Bra<strong>in</strong>Net” Europe devoted to biobank<strong>in</strong>g, harmonization <strong>of</strong> assessment tools and standardization <strong>of</strong><br />
diagnostic criteria <strong>of</strong> neurodegenerative diseases.<br />
The permanent staff <strong>of</strong> the Division is composed by 8 MD and two technicians. In addition, the staff<br />
comprises 13 post-doctoral fellows (7 PhD, 3 MDV, 1 MD, 1 psychologist), 2 PhD students and 1 technician<br />
who are committed to the <strong>research</strong> activities on degenerative dementias with different expertise and roles.<br />
On the overall, the team has large experience <strong>in</strong> a variety <strong>of</strong> techniques spann<strong>in</strong>g from neuropathology<br />
(<strong>in</strong>clud<strong>in</strong>g immunohistochemistry, morphometry, electron microscopy and atomic force microscopy), to<br />
molecular genetics, biochemistry (purification and characterization <strong>of</strong> disease-specific prote<strong>in</strong>s), cellular<br />
and molecular biology, and animal models.<br />
Research l<strong>in</strong>es on Alzheimer’s disease<br />
A. Cl<strong>in</strong>ical <strong>research</strong><br />
• Early diagnosis <strong>of</strong> Alzheimer’s disease (AD)<br />
We will characterize the phenotypic expression <strong>of</strong> AD and other degenerative dementias through<br />
multiplex analysis <strong>of</strong> a number <strong>of</strong> variables <strong>in</strong>clud<strong>in</strong>g neuropsychological and behavioural pr<strong>of</strong>ile,<br />
neuroimag<strong>in</strong>g, neurophysiological changes with special attention to sleep abnormalities, genetics,<br />
and plasma and CSF biomarkers. Furthermore, we will carry out longitud<strong>in</strong>al studies <strong>of</strong><br />
presymptomatic carriers <strong>of</strong> gene mutations to detect early markers <strong>of</strong> conversion to the disease<br />
state.<br />
• Cl<strong>in</strong>ical trials<br />
We will carry out phase II and phase III cl<strong>in</strong>ical trials to assess the effectiveness <strong>of</strong> potentially<br />
disease-modify<strong>in</strong>g drugs, <strong>in</strong>clud<strong>in</strong>g molecules targeted to Aβ and prote<strong>in</strong> tau.<br />
• Identification <strong>of</strong> disease-specific biomarkers<br />
We are currently work<strong>in</strong>g on a peripheral marker <strong>of</strong> AD hav<strong>in</strong>g high specificity and sensitivity,<br />
based on cyclic amplification <strong>of</strong> misfolded Aβ and Aβ oligomers from biological fluids, similar to<br />
the PMCA technique successfully developed by Claudio Soto for prion diseases. The same<br />
approach will be used to amplify and detect misfolded tau.<br />
• Biobank<strong>in</strong>g and neuropathological and molecular characterization <strong>of</strong> patients
We will collect systematically plasma, DNA and CSF from patients with different types <strong>of</strong><br />
dementia and non-demented <strong>in</strong>dividuals, and perform autopsies for neuropathological<br />
characterization and biochemical and molecular studies.<br />
B. Precl<strong>in</strong>ical <strong>research</strong><br />
• Recessive A673V APP mutation: molecular mechanisms and development <strong>of</strong> a new therapeutic<br />
strategy for sporadic AD<br />
We have recently identified an APP mutation (A673V) that causes early-onset AD only <strong>in</strong> the homozygous<br />
state while the heterozygous carriers are not affected. This mutation strongly boosts the production and<br />
amyloidogenic properties <strong>of</strong> Aβ. However, the <strong>in</strong>teraction <strong>of</strong> A673V-mutated and wild-type peptides<br />
<strong>in</strong>hibits amyloidogenesis and Aβ-mediated neurotoxicity (Di Fede et al., Science 2009, 323:1473-7). These<br />
f<strong>in</strong>d<strong>in</strong>gs are consistent with the observation that the A673V heterozygous carriers do not develop disease<br />
and <strong>of</strong>fer grounds for a novel therapeutic strategy based on modified Aβ peptides.<br />
A <strong>research</strong> priority <strong>of</strong> our lab is to unravel the molecular mechanisms <strong>of</strong> the opposite effects <strong>of</strong> the<br />
A673V APP mutation <strong>in</strong> homo- or heterozygous state on amyloidogenesis and to develop a lead<br />
compound for AD therapy based on A673V-modified Aβ peptides or peptido-mimetic molecules.<br />
To accomplish these objectives we have generated a panel <strong>of</strong> transfected cells and transgenic C.<br />
elegans express<strong>in</strong>g human APP or Aβ with the A673V mutation, respectively, and transgenic<br />
mouse l<strong>in</strong>es express<strong>in</strong>g A673V-mutated APP <strong>in</strong> the homozygous or heterozygous state.<br />
Furthermore, we have identified a prototypic lead compound correspond<strong>in</strong>g to a six-mer Aβ peptide<br />
with the A673V substitution and are currently work<strong>in</strong>g on bra<strong>in</strong> delivery systems.<br />
• Pathways lead<strong>in</strong>g to tau pathology<br />
A key event <strong>in</strong> AD pathogenesis is the hyperphosphorylation, misfold<strong>in</strong>g and aggregation <strong>of</strong> the<br />
microtubule-associated prote<strong>in</strong> tau lead<strong>in</strong>g to formation <strong>of</strong> neur<strong>of</strong>ibrillary tangles, disruption <strong>of</strong> the<br />
neuronal cytoskeleton and neurodegeneration. Follow<strong>in</strong>g the “Aβ cascade hypothesis” this event is<br />
triggered by aggregated Aβ species, particularly oligomeric assembly <strong>in</strong>termediates. However, the<br />
pathways l<strong>in</strong>k<strong>in</strong>g Aβ and tau pathology are unknown. This is largely due to lack <strong>of</strong> animal models able to<br />
reproduce these two central aspects <strong>of</strong> AD. We have developed a mouse model <strong>of</strong> prion disease that shows<br />
a secondary tauopathy follow<strong>in</strong>g deposition <strong>of</strong> PrP amyloid (Giaccone et al., Neurobiol. Ag<strong>in</strong>g 2008,<br />
29:1864-73). This model will be used to <strong>in</strong>vestigate the molecular basis <strong>of</strong> tau pathology <strong>in</strong>duced by<br />
deposition <strong>of</strong> an amyloid prote<strong>in</strong>.<br />
• Role <strong>of</strong> nuclear tau <strong>in</strong> neurodegeneration <strong>in</strong> fronto-temporal dementia<br />
Tau is the major microtubule-associated prote<strong>in</strong> <strong>of</strong> neurons and its primary role is to promote assembly and<br />
stabilization <strong>of</strong> microtubules required for morphogenesis and axonal transport. We have recently found that<br />
tau plays an important role also <strong>in</strong> chromosome stability, and mutations <strong>in</strong> the tau gene cause chromosome<br />
aberrations <strong>in</strong> peripheral cells <strong>in</strong> addition to formation <strong>of</strong> neur<strong>of</strong>ibrillary tangles <strong>in</strong> neurons and glial cells.<br />
Our objective is to elucidate the molecular mechanisms underly<strong>in</strong>g the genomic <strong>in</strong>stability due to tau<br />
mutations us<strong>in</strong>g cellular models, and to <strong>in</strong>vestigate the contribution <strong>of</strong> the aneuploidy caused by mutated tau<br />
to neurodegeneration us<strong>in</strong>g a transgenic mouse model <strong>of</strong> tauopathy.
Relevant ongo<strong>in</strong>g <strong>research</strong> support<br />
• Cariplo Foundation (01/01/07-30/06/10)<br />
Title: Genoproteomics <strong>of</strong> Age Related Disorders (GuARD).<br />
PI: Roberto Sitia<br />
Role: Project leader<br />
• <strong>Italian</strong> M<strong>in</strong>istry <strong>of</strong> Health (01/01/09-30/06/11)<br />
Title: Alzheimer's disease: development and validation <strong>of</strong> a multi-factorial protocol for the diagnosis and<br />
follow-up <strong>of</strong> disease <strong>in</strong> the prodromal and <strong>in</strong>cipient phase.<br />
PI: Fabrizio Tagliav<strong>in</strong>i<br />
• European Union/<strong>Italian</strong> M<strong>in</strong>istry <strong>of</strong> Health (01/02/09-31/01/12)<br />
Title: Molecular mechanisms underly<strong>in</strong>g synaptic dysfunction <strong>in</strong> prototypic neurodegenerative diseases<br />
related to prote<strong>in</strong> misfold<strong>in</strong>g (nEUROsyn).<br />
Role: PI<br />
• <strong>Italian</strong> Agency <strong>of</strong> Drug (01/09/06-31/08/10)<br />
Title: A randomized, double-bl<strong>in</strong>d pilot study versus placebo for the evaluation <strong>of</strong> the efficacy <strong>of</strong><br />
doxycycl<strong>in</strong>e adm<strong>in</strong>istered by oral route <strong>in</strong> patients affected by Creutzfeld-Jakob disease.<br />
Role: PI
Nome Roberta Ricciarelli, Ph.D.<br />
Contatti<br />
E-mail: ricciarelli@medic<strong>in</strong>a.unige.it<br />
Tel.: +39-010-3538838; Fax: +39-010-3538836<br />
Istituto/Dipartimento Section <strong>of</strong> General Pathology<br />
Department <strong>of</strong> Experimental Medic<strong>in</strong>e (DiMeS)<br />
University <strong>of</strong> Genoa, Italy<br />
Proposta di ricerca<br />
Dr. Roberta Ricciarelli’s ongo<strong>in</strong>g <strong>research</strong> on Alzheimer’s disease:<br />
• Cholesterol and amyloid-beta: is there a relation?<br />
• Study <strong>of</strong> the nonmuscle myos<strong>in</strong> II <strong>in</strong>volvement <strong>in</strong> the process<strong>in</strong>g <strong>of</strong> the amyloid precursor prote<strong>in</strong> (APP)<br />
• Specific type 4 phosphodiesterase <strong>in</strong>hibitors and their impact on the production <strong>of</strong> amyloid-beta<br />
Area di <strong>in</strong>teresse identificata<br />
F<strong>in</strong>anziamenti ricevuti<br />
-Basic <strong>research</strong>,<br />
-Multidiscipl<strong>in</strong>ary projects,<br />
-New treatment strategies.<br />
Titolo progetto Molecular mechanisms <strong>of</strong> N-truncated amyloid beta peptides<br />
generation<br />
Ente f<strong>in</strong>anziatore MIUR (M<strong>in</strong>istry <strong>of</strong> Education, University and Research)<br />
Durata progetto Two years (2004-2005)<br />
Abstract del progetto The amyloid precursor prote<strong>in</strong> (APP) is an <strong>in</strong>tegral membrane prote<strong>in</strong><br />
processed by several different proteases called secretases. β-Secretase is<br />
responsible <strong>of</strong> the N-term<strong>in</strong>al cleavage <strong>of</strong> amyloid-� (Aβ). The gene for βsecretase<br />
(also referred to as BACE) is located on chromosome 11, but no<br />
AD-related mutation <strong>in</strong> this gene has been identified so far. BACE mRNA is<br />
highly expressed <strong>in</strong> the bra<strong>in</strong> and is also found <strong>in</strong> a variety <strong>of</strong> human<br />
tissues, consistent with the fact that Aβ is normally produced by many<br />
cell types. Recently, three new alternatively spliced transcripts <strong>of</strong> human<br />
BACE have been described, but the functional importance <strong>of</strong> the different<br />
BACE is<strong>of</strong>orms, and their implication <strong>in</strong> the pathogenesis <strong>of</strong> AD, has not<br />
yet been <strong>in</strong>vestigated. Our prelim<strong>in</strong>ary sequence analysis <strong>in</strong>dicates that,<br />
as a cause <strong>of</strong> the alternative splic<strong>in</strong>g, the DTG sequence, which is<br />
conserved at the active site <strong>of</strong> the enzyme, may shift to a different<br />
position with<strong>in</strong> the catalytic site, affect<strong>in</strong>g its substrate specificity. S<strong>in</strong>ce<br />
BACE is <strong>in</strong>volved <strong>in</strong> the generation <strong>of</strong> the N-term<strong>in</strong>us <strong>of</strong> Aβ species, the<br />
existence <strong>of</strong> four BACE isoenzymes prompted us to <strong>in</strong>vestigate the<br />
possible correlation between the expression <strong>of</strong> selective BACE is<strong>of</strong>orms<br />
and the formation <strong>of</strong> neurotoxic N-truncated Aβ peptides. This
hypothesis is <strong>in</strong> l<strong>in</strong>e with the reported absence <strong>of</strong> AD-caus<strong>in</strong>g mutation <strong>in</strong><br />
BACE gene.<br />
Titolo progetto In vitro effect <strong>of</strong> PPAR-γ2 Pro12Ala polymorphism on the deposition <strong>of</strong><br />
Alzheimer's amyloid-β peptides<br />
Ente f<strong>in</strong>anziatore Fondazione CARIGE<br />
Durata progetto One year (2007)<br />
Abstract del progetto Mount<strong>in</strong>g evidence suggests that peroxisome proliferator-activated<br />
receptor-γ (PPAR-γ) is <strong>in</strong>volved <strong>in</strong> the modulation <strong>of</strong> pathogenic events<br />
related to Alzheimer's disease (AD). Such events would <strong>in</strong>clude the<br />
cerebral deposition <strong>of</strong> amyloid-β (Aβ) and the consequent local<br />
<strong>in</strong>flammatory response. PPAR-γ has been shown to act on both fronts,<br />
reduc<strong>in</strong>g either the secretion <strong>of</strong> Aβ or the expression <strong>of</strong> pro-<strong>in</strong>flammatory<br />
cytok<strong>in</strong>es. Recently, the relatively common Pro12Ala polymorphism <strong>in</strong><br />
exon 2 <strong>of</strong> PPAR-γ has been associated with higher risk for late onset AD.<br />
The aim <strong>of</strong> the present project is to assess the impact <strong>of</strong> PPAR-γ and its<br />
genetic variant on the secretion <strong>of</strong> Aβ <strong>in</strong> neuronal cultured cells.<br />
Titolo progetto Study <strong>of</strong> physiological function <strong>of</strong> the amyloid precursor prote<strong>in</strong><br />
Ente f<strong>in</strong>anziatore University <strong>of</strong> Genoa<br />
Durata progetto One year (2008)<br />
Abstract del progetto The Alzheimer’s disease (AD) bra<strong>in</strong> pathology is characterized by<br />
extracellular deposits <strong>of</strong> amyloid-� (A��) peptides and <strong>in</strong>traneuronal<br />
fibrillar structures. These pathological features may be functionally<br />
l<strong>in</strong>ked, but the mechanism by which A�� accumulation relates to<br />
neuronal degeneration is still poorly understood. A�� peptides are<br />
fragments cleaved from the amyloid precursor prote<strong>in</strong> (APP), a<br />
transmembrane prote<strong>in</strong> ubiquitously expressed <strong>in</strong> the nervous system.<br />
Although the proteolytic process<strong>in</strong>g <strong>of</strong> APP has been implicated <strong>in</strong> AD, the<br />
physiological function <strong>of</strong> APP and the subcellular site <strong>of</strong> APP cleavages<br />
rema<strong>in</strong> unknown. The overall structure <strong>of</strong> the prote<strong>in</strong> and its fast<br />
anterograde transport along the axon support the idea that APP functions<br />
as a vesicular receptor for cytoskeletal motor prote<strong>in</strong>s. In the current<br />
study, we will test the hypothesis that myos<strong>in</strong> II, important contributor to<br />
the cytoskeleton <strong>of</strong> neuronal cells, may <strong>in</strong>fluence the traffick<strong>in</strong>g and/or<br />
the process<strong>in</strong>g <strong>of</strong> APP. Our prelim<strong>in</strong>ary results demonstrated that<br />
downregulation <strong>of</strong> myos<strong>in</strong> II-B, the major myos<strong>in</strong> is<strong>of</strong>orm <strong>in</strong> neurons, is<br />
able to <strong>in</strong>crease A�� deposition, concomitantly alter<strong>in</strong>g the subcellular<br />
localization <strong>of</strong> APP. These new <strong>in</strong>sights might be important for the<br />
understand<strong>in</strong>g <strong>of</strong> the function <strong>of</strong> APP and provide a novel conceptual<br />
framework <strong>in</strong> which to analyze its pathological role.
Nome Patrizia Guarneri<br />
Contatti guarneri@ibim.cnr.it<br />
Istituto/Dipartimento Istituto di Biomedic<strong>in</strong>a e Immunologia Molecolare – Dip- di Medic<strong>in</strong>a -<br />
CNR- Palermo<br />
Proposta di ricerca<br />
Rare neurodegenerative diseases: basic <strong>research</strong><br />
Area di <strong>in</strong>teresse identificata Rare diseases<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Pathogenesis <strong>of</strong> the CLN8 form <strong>of</strong> the late-<strong>in</strong>fantile neuronal ceroid<br />
lip<strong>of</strong>usc<strong>in</strong>osis<br />
Ente f<strong>in</strong>anziatore<br />
1) MIUR “PRIN” Programmi di Ricerca Scientifica di Rilevante Interesse<br />
Nazionale (DM n. 1407 del 4 dicembre 2008). “IDENTIFICATION OF<br />
BIOLOGICAL, GENETIC AND CLINICAL MODIFIERS OF THE RATE OF<br />
PROGRESSION AND SURVIVAL IN AMYOTROPHIC LATERAL SCLEROSIS ”,<br />
prot. 20082XH2Z4-001<br />
Durata progetto<br />
Abstract del progetto<br />
2) FIRB-MIUR, n. RBAU01E3SL, “RETINAL DEGENERATION IN MND<br />
MOUSE, AN ANIMAL MODEL OF NEURONAL CEROID LIPOFUSCINOSES OR<br />
BATTEN’S DISEASE. (dec. n. 808/Ric)<br />
1) Two years<br />
2) Three years<br />
The neuronal ceroid lip<strong>of</strong>usc<strong>in</strong>oses (NCLs) are a group <strong>of</strong><br />
neurodegenerative, lysosomal diseases with onset usually <strong>in</strong> childhood,<br />
be<strong>in</strong>g characterized by progressive visual loss, dementia, motor decl<strong>in</strong>e,<br />
therapy resistant epilepsy and early death. Our team has lately focused<br />
on the pathogenic mechanisms <strong>of</strong> the CLN8 variant form <strong>of</strong> the late<strong>in</strong>fantile<br />
NCLs (vLNCL), which is present <strong>in</strong> F<strong>in</strong>land, Turkey and Italy. The<br />
CLN8 gene encodes a transmembrane prote<strong>in</strong> which is located ma<strong>in</strong>ly <strong>in</strong><br />
the ER and partially <strong>in</strong> the ER-Golgi <strong>in</strong>termediate compartment <strong>of</strong> both<br />
neuronal and non-neuronal cells, and it is supposed to have a role <strong>in</strong> the<br />
ceramide synthesis. However, its exact function rema<strong>in</strong>s undiscovered.<br />
We have developed a prote<strong>in</strong>-prote<strong>in</strong> <strong>in</strong>teraction study throughout the<br />
screen<strong>in</strong>g <strong>of</strong> a human bra<strong>in</strong> cDNA library with split-ubiquit<strong>in</strong> membrane<br />
two-hybrid system <strong>in</strong> yeast, which is the only technology developed thus<br />
far that can work effectively as a <strong>in</strong> vivo screen<strong>in</strong>g system to f<strong>in</strong>d<br />
<strong>in</strong>teractors <strong>of</strong> ER membrane prote<strong>in</strong>s. This approach along with<br />
coimmuno-precipitation and -localization assays <strong>of</strong> transfected cells has<br />
envisaged for the first time four major prote<strong>in</strong> <strong>in</strong>teractors with the CLN8<br />
prote<strong>in</strong>. Through <strong>in</strong> vitro and <strong>in</strong> vivo studies, we are look<strong>in</strong>g at the<br />
def<strong>in</strong>ition <strong>of</strong> the functional role <strong>of</strong> these <strong>in</strong>teractions and particularly <strong>of</strong><br />
the CLN8 <strong>in</strong>teraction with two <strong>of</strong> the characterized prote<strong>in</strong>s, which are<br />
known to have functions <strong>in</strong> synthesis and transport <strong>of</strong> lipids and are<br />
suggested to be <strong>in</strong>volved <strong>in</strong> the amyothrophic lateral sclerosis. In an<br />
attempt to understand the mechanisms lead<strong>in</strong>g to neuronal cell death <strong>in</strong><br />
the disease, we have been also us<strong>in</strong>g a spontaneous animal model <strong>of</strong> the<br />
CLN8/vNCL, the mnd mouse. We are currently <strong>in</strong>vestigat<strong>in</strong>g whether and<br />
how dysfunctions <strong>of</strong> ER/UPR system and autophagolysosomal pathway
cooperate <strong>in</strong> the neurodegeneration <strong>of</strong> the ret<strong>in</strong>a and bra<strong>in</strong> structures <strong>of</strong><br />
the mnd model.
Nome Dario F<strong>in</strong>azzi<br />
Contatti<br />
f<strong>in</strong>azzi@med.unibs.it<br />
phone and fax ++39 030 302356<br />
Istituto/Dipartimento Dip. Materno Infantile e Tecnologie Biomediche<br />
Università degli studi di Brescia<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse identificata<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
1) Basic <strong>research</strong><br />
2) Genetic susceptibility to Alzheimer’s disease and genome wide<br />
association studies<br />
3) Biobank<strong>in</strong>g<br />
1) IRON METABOLISM IN NEURAL CELLS AND IN<br />
NEURODEGENERATIVE DISORDERS<br />
2) ANALYSIS OF CANDIDATE GENES OF SUSCEPTIBILITY TO AD.<br />
University <strong>of</strong> Brescia<br />
Fondazione RSA Agostoni Lissone<br />
3 years<br />
Our group is <strong>in</strong>terested <strong>in</strong> the study <strong>of</strong> iron metabolism <strong>in</strong> the bra<strong>in</strong> and<br />
its possible role <strong>in</strong> neurodegeneration. The accumulation <strong>of</strong> iron is a<br />
phenomenon <strong>of</strong>ten detected <strong>in</strong> the bra<strong>in</strong> from patients affected by<br />
Alzheimer’s disease and by other neurodegenerative processes. Even<br />
though such accumulation is not the primary cause <strong>of</strong> neural death, it is<br />
surely <strong>in</strong>volved <strong>in</strong> the progression and deterioration <strong>of</strong> the<br />
neurodegenerative process. The excess <strong>of</strong> iron can be directly l<strong>in</strong>ked to an<br />
<strong>in</strong>crease <strong>in</strong> the production <strong>of</strong> free radicals, lead<strong>in</strong>g to oxidative damage to<br />
prote<strong>in</strong>s and membranes, signs commonly documented <strong>in</strong> tissues with<br />
neurodegeneration. We aim to a better comprehension <strong>of</strong> such processes<br />
by develop<strong>in</strong>g two different and complementary l<strong>in</strong>es <strong>of</strong> <strong>research</strong>: 1)<br />
Analysis <strong>of</strong> the biological mechanisms <strong>in</strong>volved <strong>in</strong> the ma<strong>in</strong>tenance <strong>of</strong> iron<br />
homeostasis <strong>in</strong> the bra<strong>in</strong>, <strong>in</strong> normal and pathological conditions; 2)<br />
Analysis <strong>of</strong> genes l<strong>in</strong>ked to iron metabolism as possible modifiers <strong>of</strong> the<br />
<strong>in</strong>dividual risk to develop AD.<br />
We <strong>in</strong>tend to perform a thorough analysis <strong>of</strong> the regulation <strong>of</strong> iron<br />
metabolism <strong>in</strong> neural cells and to assess the way its malfunction may lead<br />
to iron accumulation. The experiments will be <strong>in</strong>itially carried out <strong>in</strong> SH-<br />
5YSY cells (either differentiated or not) and <strong>in</strong> primary hippocampal<br />
neurons with the goal to characterize the role played by the hepcid<strong>in</strong>ferroport<strong>in</strong><br />
axis <strong>in</strong> iron homeostasis <strong>of</strong> neural cells. We will determ<strong>in</strong>e the<br />
mechanism regulat<strong>in</strong>g ferroport<strong>in</strong> expression and function and describe<br />
the molecular mach<strong>in</strong>ery controll<strong>in</strong>g hepcid<strong>in</strong> production <strong>in</strong> neuronal
cells and the role <strong>of</strong> the peptide <strong>in</strong> neuronal iron traffick<strong>in</strong>g. The analysis<br />
will be then extended to wild type mice and mur<strong>in</strong>e model <strong>of</strong> AD<br />
(APP/PS1dE9), and eventually to autopsy sections <strong>of</strong> human bra<strong>in</strong> from<br />
patients and controls. In particular we will <strong>in</strong>vestigate the relationship<br />
between bra<strong>in</strong> <strong>in</strong>flammation and the regulation <strong>of</strong> the hepcid<strong>in</strong>ferroport<strong>in</strong><br />
axis. We have prelim<strong>in</strong>ary evidence that BMP6 and<br />
Interleuk<strong>in</strong>s <strong>in</strong>tervene <strong>in</strong> the transcriptional regulation <strong>of</strong> hepcid<strong>in</strong> and<br />
could be <strong>of</strong> relevance <strong>in</strong> the progressive accumulation <strong>of</strong> iron <strong>in</strong> bra<strong>in</strong>.<br />
The study take advantage <strong>of</strong> a significant collaboration with Pr<strong>of</strong> Paolo<br />
Arosio, one <strong>of</strong> the major expert <strong>in</strong> the study <strong>of</strong> cellular iron metabolism.<br />
The genetic part <strong>of</strong> the project will <strong>in</strong>vestigate the possible association<br />
between polymorphisms <strong>in</strong> genes <strong>in</strong>volved <strong>in</strong> iron homeostasis (hepcid<strong>in</strong>,<br />
ferroport<strong>in</strong>, DMT1, ceruloplasm<strong>in</strong>) and the <strong>in</strong>dividual risk to develop AD.<br />
Promoter regions, exons and exon-<strong>in</strong>tron boundary regions will be<br />
scanned for the presence <strong>of</strong> sequence variations by DHPLC and real time<br />
genotyp<strong>in</strong>g. The study is granted by the availability <strong>of</strong> a large set <strong>of</strong><br />
genomic DNA samples from patients and controls and by the<br />
collaboration with <strong>research</strong> groups and cl<strong>in</strong>icians with expertise <strong>in</strong> AD and<br />
genetic studies (pr<strong>of</strong>. Scarp<strong>in</strong>i, Dott. Galimberti, Dott. Dom<strong>in</strong>ici). In 2005<br />
we set up a bank <strong>of</strong> different biological samples com<strong>in</strong>g from AD patients<br />
and sex and age matched controls. The biobank<strong>in</strong>g activity is cont<strong>in</strong>u<strong>in</strong>g<br />
thanks to the collaboration with the Fondazione RSA Agostoni <strong>in</strong> Lissone<br />
and Dr Roberto Dom<strong>in</strong>ici. Our valid collaboration with the group <strong>of</strong> Pr<strong>of</strong><br />
Scarp<strong>in</strong>i at Ospedale Maggiore <strong>in</strong> Milan allows us the access to a large and<br />
well characterized set <strong>of</strong> genomic DNA samples, as a second and different<br />
population for the confirmation <strong>of</strong> data obta<strong>in</strong>ed <strong>in</strong> the first set <strong>of</strong><br />
patients and controls.
Nome Carlo Sala<br />
Contatti<br />
Tel.<br />
E mail<br />
Carlo Sala<br />
+390250317096<br />
c.sala@<strong>in</strong>.cnr.it<br />
Istituto/Dipartimento CNR Istituto di Neuroscienze<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse identificata Neurotoxic stimuli, synaptic dysfunction<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
The role <strong>of</strong> <strong>in</strong>traneuronal amyloid β(Aβ) peptide on the pathogenesis <strong>of</strong><br />
the Alzheimer disease: functional and proteomic analysis.<br />
Fondazione CARIPLO<br />
2 anni<br />
La malattia di Alzheimer rappresenta la più comune forma di demenza<br />
per la quale non esiste ancora nessun <strong>in</strong>tervento terapeutico <strong>in</strong> grado di<br />
prevenire, curare o ritardare <strong>in</strong> modo sostanzaile il suo sviluppo. Recenti<br />
studi hanno dimostaro che l’accumulo <strong>in</strong>tracellulare di Abeta correla con<br />
la prima comparsa di deficit cognitivi. Questo progetto si pone<br />
l’obbiettivo di identificare come Abeta <strong>in</strong>trecelluare <strong>in</strong>terfereisce con la<br />
funzionalità delle sianpsi neuronali e, con tecniche proteomiche avanzate,<br />
di <strong>in</strong>dividuare le prote<strong>in</strong>e che <strong>in</strong>teragiasono con Abeta. Inf<strong>in</strong>e ci<br />
proponiamo di studiare i meccanismi molecolari alla base della<br />
formazione di Abeta purificando e caratterizzando la composizione<br />
proteica delle vescicole di trasporto per APP. I risultati che ci proponiamo<br />
di ottenre con questo porgetto potranno contribuire alla conoscenza dei<br />
meccanismi patogenetici dell’AD e potrebbero consentire lo sviluppo di<br />
nuovi metodi diagnostici e la eventuale messa a punto di protocolli<br />
terapeutici
Nome Crist<strong>in</strong>a Limatola<br />
Contatti<br />
Tel.<br />
E mail<br />
+39 06 49690243 +39 347 2924450<br />
Crist<strong>in</strong>a.limatola@uniroma1.it<br />
Istituto/Dipartimento Dipartimento di Fisiologia e Farmacologia, Università Sapienza Roma<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse identificata Tra le altre l<strong>in</strong>ee di ricerca di <strong>in</strong>teresse del laboratorio, siamo da qualche<br />
anno co<strong>in</strong>volti <strong>in</strong> studi di ricerca sulla sclerosi laterale amiotr<strong>of</strong>ica (SLA).<br />
In particolare, <strong>in</strong> collaborazione con un gruppo di neurologi (Sabatelli,<br />
Neri) e genetisti (Zoll<strong>in</strong>o) dell’Università Cattolica di Roma, abbiamo<br />
descritto, <strong>in</strong> pazienti affetti da SLA, delle mutazioni a carico di diverse sub<br />
unità del recettore nicot<strong>in</strong>ico neuronale, nel loop regolatorio<br />
citoplasmatico (Sabatelli et al., 2009). Queste mutazioni, <strong>in</strong> buona misura<br />
a carico di potenziali siti di fosforilazione da parte di prote<strong>in</strong> ch<strong>in</strong>asi,<br />
determ<strong>in</strong>ano delle alterazione funzionali specifiche di alcune sub unità<br />
per recettori-canale per l’acetilcol<strong>in</strong>a, con una generale “ga<strong>in</strong> <strong>of</strong> function”<br />
recettoriale. L’aumentata responsività alla stimolazione con acetilcol<strong>in</strong>a a<br />
livello dei term<strong>in</strong>ali glutamatergici potrebbe determ<strong>in</strong>are una liberazione<br />
eccessiva di glutammato eccito tossico, mentre la potenziata attività dei<br />
recettori nicot<strong>in</strong>ici potrebbe aumentare l’<strong>in</strong>gresso di calcio <strong>in</strong>traneuronale<br />
a livelli tossici, contribuendo all’<strong>in</strong>izio o alla progressione della malattia.<br />
Stiamo attualmente cont<strong>in</strong>uando questi studi molecolari, analizzando gli<br />
effetti dell’adenos<strong>in</strong>a e dell’ATP, i cui livelli sono alterati nella risposta<br />
<strong>in</strong>fiammatoria cronica caratteristica della SLA, sull’attività dei recettori<br />
nicot<strong>in</strong>ici neuronali mutati <strong>in</strong>dividuati rispetto alla controparte normale.<br />
Altro punto di <strong>in</strong>teresse riguarda il co<strong>in</strong>volgimento delle cellule gliali,<br />
astrociti e microglia, nello sviluppo e nella progressione di questa<br />
patologia. Abbiamo sviluppato a tal proposito dei sistemi di co-coltura<br />
motoneuroni-cellule gliali e di fett<strong>in</strong>e ottenute dal tronco cerebrale<br />
(regione del nucleo ipoglosso) per studiare il contributo della<br />
componente gliale nella alterazione dell’attività elettrica ritmica, nelle<br />
proprietà dei recettori per neurotrasmettitori, sensibilità<br />
all’eccitotossicità da glutammato, e ci proponiamo di applicare questi<br />
studi a modelli cellulari che overesprimano forme mutate di prote<strong>in</strong>e<br />
associate alla SLA, come FUS, TDP-43 o SOD (<strong>in</strong> collaborazione con un<br />
gruppo di biologi molecolari della nostra università, Pr<strong>of</strong>. Bozzoni).<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Studio funzionale di mutazioni che aumentano la suscettibilità alla<br />
Sclerosi Laterale Amiotr<strong>of</strong>ica su calciatori amatoriali o pr<strong>of</strong>essionisti.<br />
Ente f<strong>in</strong>anziatore Fondazione Milan<br />
Durata progetto 2010-2011<br />
Abstract del progetto La sclerosi laterale amiotr<strong>of</strong>ica (SLA) è una malattia devastante che<br />
distrugge <strong>in</strong> maniera selettiva una particolare categoria di cellule nervose:<br />
i motoneuroni. Questi sono i neuroni che controllano la contrazione dei<br />
muscoli scheletrici, per cui la loro morte provoca una paralisi progressiva<br />
dei soggetti affetti da SLA e, nel giro di 2-6 anni dall’<strong>in</strong>sorgenza della<br />
malattia, la loro morte (solitamente per arresto respiratorio).<br />
Solo il 5% dei casi di SLA ha chiaramente un’orig<strong>in</strong>e ereditaria, nel<br />
restante 95% la malattia ha un orig<strong>in</strong>e <strong>in</strong>certa (SLAs). Tra i giocatori di<br />
calcio, caso unico tra tutte le categorie di sportivi pr<strong>of</strong>essionisti, il rischio<br />
di sviluppare una SLAs è ben 6 volte superiore a quello della popolazione<br />
generale. Non è ad oggi nota la ragione di questo fenomeno. Si ritiene
che i pr<strong>in</strong>cipali fattori di rischio per lo sviluppo delle SLAs, oltre all’età e al<br />
sesso maschile, siano i traumi meccanici, l’esposizione ad erbicidi,<br />
un’attività fisica molto <strong>in</strong>tensa e il fumo di sigarette. Da un punto di vista<br />
cellulare, una delle cause che si ritiene essere alla base di questa malattia,<br />
è il danno prodotto dal massiccio aumento dello ione calcio all’<strong>in</strong>terno del<br />
neurone. Siccome la stimolazione dei recettori della nicot<strong>in</strong>a (la sostanza<br />
contenuta nelle sigarette) che sono localizzati sulla membrana dei<br />
motoneuroni consente l’<strong>in</strong>gresso del calcio all’<strong>in</strong>terno del motoneurone si<br />
è pensato di studiare la frequenza delle mutazioni dei geni che codificano<br />
i recettori nicot<strong>in</strong>ici neuronali. Queste mutazioni sono presenti nel 6% di<br />
pazienti affetti da SLAs e <strong>in</strong>ducono tutte un’alterazione nel<br />
funzionamento dei recettori nicot<strong>in</strong>ici neuronali che provoca un aumento<br />
dell’<strong>in</strong>gresso del calcio all’<strong>in</strong>terno del motoneurone aumentando la<br />
probabilità che esso muoia. Data l’anormale frequenza di questa malattia<br />
nelle persone che praticano l’attività calcistica a livello agonistico<br />
(amatoriale o pr<strong>of</strong>essionale), ci proponiamo di valutare, mediante analisi<br />
del DNA estratto con semplici prelievi di sangue, la presenza di mutazioni<br />
dei recettori nicot<strong>in</strong>ici <strong>in</strong> calciatori <strong>in</strong> buone condizioni di salute e/o di<br />
coloro che si sono già ammalati di SLAs. Siamo conv<strong>in</strong>ti che lo studio delle<br />
modalità precise delle modificazioni del funzionamento dei recettori<br />
nicot<strong>in</strong>ici neuronali dovute a queste mutazioni genetiche, possa essere il<br />
primo e fondamentale passo per sviluppare una terapia <strong>in</strong>novativa mirata<br />
a riprist<strong>in</strong>are il corretto funzionamento dei recettori con la accelerazione<br />
della loro desensibilizzazione, dim<strong>in</strong>uendo significativamente il rischio<br />
dell’<strong>in</strong>sorgenza della malattia, cioè la suscettibilità alla malattia. A questo<br />
scopo ci proponiamo di caratterizzare dal punto di vista funzionale le<br />
mutazioni trovate <strong>in</strong> sistemi eterologhi ricostituiti <strong>in</strong> vitro (l<strong>in</strong>ee cellulari<br />
trasfettate); <strong>in</strong>oltre <strong>in</strong>tendiamo sviluppare un modello di topo<br />
transgenico per una delle mutazione dei recettori nicot<strong>in</strong>ici associata a<br />
SLA, e utilizzarlo come modello <strong>in</strong> vivo per studiare la fisiologia del<br />
muscolo e la fisiologia neuronale.<br />
Titolo progetto<br />
Molecular and functional approaches to <strong>in</strong>vestigate the<br />
physiopathological role <strong>of</strong> the chemok<strong>in</strong>es and their receptors <strong>in</strong> the<br />
central nervous system.<br />
Ente f<strong>in</strong>anziatore Fondazione Cenci Bolognetti<br />
Durata progetto 2007-2010<br />
Abstract del progetto Chemok<strong>in</strong>es and their receptors are widely expresses <strong>in</strong> CNS where they<br />
play important roles both under physiological and pathological<br />
conditions. Chemok<strong>in</strong>es are implicated <strong>in</strong> the control <strong>of</strong> neuronal and glial<br />
development, both <strong>in</strong> terms <strong>of</strong> migration and maturation, modulate<br />
synaptic transmission and have trophic and protective effects on neurons<br />
and glia. The spectrum <strong>of</strong> biological activities <strong>of</strong> chemok<strong>in</strong>es is broadened<br />
by their <strong>in</strong>volvement <strong>in</strong> the pathogenesis and ma<strong>in</strong>ta<strong>in</strong><strong>in</strong>g <strong>of</strong> several<br />
neuropathologies, when their expression may be altered. Aim <strong>of</strong> the<br />
proposed <strong>research</strong> project is to <strong>in</strong>vestigate the physiopathological<br />
activities <strong>of</strong> chemok<strong>in</strong>es as modulators <strong>of</strong> neuronal functions, identify<strong>in</strong>g<br />
the molecular pathways <strong>in</strong>volved. In particular the effects <strong>of</strong> chemok<strong>in</strong>es<br />
will be <strong>in</strong>vestigated <strong>in</strong> bra<strong>in</strong> slices, primary neuronal cultures, cell l<strong>in</strong>es<br />
and expression systems as concern synaptic transmission, short-term<br />
neuromodulatory activities and long-term plasticity, try<strong>in</strong>g to correlate<br />
these events to the activation <strong>of</strong> specific molecular effectors. These<br />
<strong>in</strong>vestigations will be correlated with studies <strong>of</strong> chemok<strong>in</strong>e-<strong>in</strong>duced
communication between different cell types, like glial cells and neurons.<br />
The effects <strong>of</strong> chemok<strong>in</strong>es as modulators <strong>of</strong> cell migration will be<br />
<strong>in</strong>vestigated <strong>in</strong> glial cells and neurons freshly isolated from rodents and<br />
the signal transduction pathways <strong>in</strong>volved will be <strong>in</strong>vestigated. The<br />
activities <strong>of</strong> chemok<strong>in</strong>es as neuroprotective substances will be<br />
<strong>in</strong>vestigated <strong>in</strong> vitro <strong>in</strong> neurotoxicity models and <strong>in</strong> vivo <strong>in</strong> animal models<br />
<strong>of</strong> cerebral ischemia. Overall, this study aspire to help to improve the<br />
understand<strong>in</strong>g <strong>of</strong> neurogenesis and neurorepair, yield<strong>in</strong>g possible clues to<br />
therapeutical strategies.
1. Expos<strong>in</strong>g tau pathology at its earliest<br />
IIT DEPARTMENT OF NEUROSCIENCE AND BRAIN TECHNOLOGIES<br />
ONGOING PROJECTS ON NEURODEGENERATION<br />
Fabio Benfenati, MD<br />
Team: Laura Gaspar<strong>in</strong>i; Axel Blau, Paolo Med<strong>in</strong>i; <strong>in</strong> collaboration with M. G. Spillant<strong>in</strong>i, M. Goedert<br />
Fund<strong>in</strong>g: Compagnia di San Paolo and IIT + pend<strong>in</strong>g.<br />
The study is aimed at reveal<strong>in</strong>g functional changes typical <strong>of</strong> <strong>in</strong>itial stages <strong>of</strong> tauopathy, and elucidat<strong>in</strong>g<br />
the underly<strong>in</strong>g molecular mechanisms. This knowledge will reveal markers suitable for early cl<strong>in</strong>ical<br />
detection <strong>of</strong> tau-driven degeneration and identify key pathogenetic mechanisms to be targeted by new<br />
therapies.<br />
2. Effects <strong>of</strong> β-amyloid aggregates on neuronal viability and microglial function<br />
Team: Denise Ferrera, Claudio Canale, Fabio Benfenati, Laura Gaspar<strong>in</strong>i<br />
Fund<strong>in</strong>g: IIT + pend<strong>in</strong>g<br />
We have demonstrated that Ab42, but not Ab40, reproducibly aggregates <strong>in</strong>to stable oligomers and<br />
prot<strong>of</strong>ibrils and reduces the viability <strong>of</strong> mouse hippocampal neurons. We are now <strong>in</strong>vestigat<strong>in</strong>g how<br />
dist<strong>in</strong>ct Aβ aggregates affect microglia viability and activate microglial neuro<strong>in</strong>flammatory response<br />
and the latter response on neuronal physiology.<br />
3. β-amyloid aggregates and astrocytic function <strong>in</strong> Alzheimer pathophysiology<br />
Team: Tommaso Fell<strong>in</strong>, Laura Gaspar<strong>in</strong>i, Nadia Mazzaro<br />
Fund<strong>in</strong>g: IIT + pend<strong>in</strong>g<br />
We will use an <strong>in</strong>terdiscipl<strong>in</strong>ary approach <strong>in</strong>clud<strong>in</strong>g two-photon microscopy, Ca2+ imag<strong>in</strong>g,<br />
biochemistry and pharmacology to test the hypothesis that b-amyloid (Ab) oligomers <strong>in</strong>duce reactive<br />
gliosis through the overactivation <strong>of</strong> astrocytic NMDA receptors and we will evaluate whether the<br />
NMDA open-channel blocker memant<strong>in</strong>e antagonizes Ab-<strong>in</strong>duced astrocytic reactive response.<br />
4. Molecular and structural determ<strong>in</strong>ants for β-amyloid mitochondrial accumulation and toxicity<br />
Team: Mounia Chami, Fabio Benfenati, Dolores Del Prete<br />
Fund<strong>in</strong>g: IIT + pend<strong>in</strong>g
Mitochondrial dysfunction is emerg<strong>in</strong>g to play a pivotal role <strong>in</strong> Alzheimer’s disease (AD). Our project is<br />
aimed at: (i) study<strong>in</strong>g ER-mitochondria communication and APP and Aβ distribution <strong>in</strong> AD models; (ii)<br />
modulat<strong>in</strong>g ER-mitochondria communication by pharmacological (Ca2+-drugs) and genetic/molecular<br />
biology through expression <strong>of</strong> mitochondrial fission and fusion prote<strong>in</strong>s and/or S1T and consequently<br />
analyse mitochondrial function, and the <strong>in</strong>tracellular distribution <strong>of</strong> APP and Aβ; (iii) determ<strong>in</strong><strong>in</strong>g the<br />
APP/Aβ partners <strong>in</strong> the MAM fraction us<strong>in</strong>g a proteomic approach.<br />
5. Calcium modulat<strong>in</strong>g drugs as a therapeutic tool for Alzheimer’s disease<br />
Team: Mounia Chami, Fabio Benfenati, Dolores Del Prete<br />
Fund<strong>in</strong>g: IIT + pend<strong>in</strong>g<br />
The ability <strong>of</strong> neurons to regulate Ca2+ signals is compromised dur<strong>in</strong>g ag<strong>in</strong>g. Importantly, alteration <strong>of</strong><br />
Ca2+ regulat<strong>in</strong>g systems has been shown to occur early <strong>in</strong> Alzheimer’s disease (AD). We will<br />
<strong>in</strong>vestigate the potential use <strong>of</strong> Ca2+ drugs as a mean to reduce Aβ production <strong>in</strong> different AD models<br />
<strong>in</strong> vitro, analyze the potential effect <strong>of</strong> Ca2+ drugs on beta and gamma secretase activity and apply Ca2+<br />
drugs on animal models <strong>in</strong> vivo and consequently analyze their effect on Aβ plaque formation, synaptic<br />
activity and cognitive development and/or progression.<br />
6. Pathogenesis and therapeutic targets for SBMA<br />
Team: Mara Pennuto, Fabio Benfenati, Chiara Scaramuzz<strong>in</strong>o<br />
Fund<strong>in</strong>g: MDA, Marie Curie, IIT + pend<strong>in</strong>g<br />
Polyglutam<strong>in</strong>e diseases belong to the broad family <strong>of</strong> bra<strong>in</strong> fold<strong>in</strong>g diseases. We aim at us<strong>in</strong>g Sp<strong>in</strong>obulbar<br />
muscular atrophy (SBMA) as a model <strong>of</strong> polyglutam<strong>in</strong>e disease to identify signal<strong>in</strong>g pathways<br />
that impact bra<strong>in</strong> fold<strong>in</strong>g diseases. Recent evidence shows that the IGF-1/Akt signal<strong>in</strong>g pathway impact<br />
bra<strong>in</strong> fold<strong>in</strong>g diseases. However, the mechanisms underly<strong>in</strong>g the effect <strong>of</strong> Akt signall<strong>in</strong>g rema<strong>in</strong> to be<br />
elucidated. By putt<strong>in</strong>g polyglutam<strong>in</strong>e AR downstream <strong>of</strong> Akt with our previous <strong>research</strong>, we<br />
established SBMA as a good model to tease apart the molecular details <strong>of</strong> the effect <strong>of</strong> IGF-1/Akt <strong>in</strong><br />
polyglutam<strong>in</strong>e disease.<br />
7. Interactions <strong>of</strong> Aβ and α-synucle<strong>in</strong> with the cytoskeleton<br />
Team: Evel<strong>in</strong>a Chieregatti, Giuseppe Ronzitti, Anako Tsushima<br />
Fund<strong>in</strong>g: IIT, Cariplo Foundation + pend<strong>in</strong>g
Both Aβ and α-synucle<strong>in</strong> are implicated <strong>in</strong> act<strong>in</strong> dynamics as well as microtubule stability through<br />
their <strong>in</strong>teractions with a microtubule-b<strong>in</strong>d<strong>in</strong>g prote<strong>in</strong>, tau. Our projects concern: (i) the study <strong>of</strong> their<br />
effects on the morphology and dynamics <strong>of</strong> act<strong>in</strong> micr<strong>of</strong>ilaments and <strong>in</strong>termediate filaments; (ii) the<br />
possible effect <strong>of</strong> the two prote<strong>in</strong>s on cytoskeletal-regulated processes, such as polarization, growth<br />
cone formation and regeneration after axotomy; (iii) the identification <strong>of</strong> prote<strong>in</strong>s <strong>of</strong> <strong>in</strong>terest such as<br />
enzymes or molecular motors that may be found <strong>in</strong> the APP-conta<strong>in</strong><strong>in</strong>g endocytic vesicles.<br />
8. Mechanisms <strong>of</strong> neurodegeneration and enhancement <strong>of</strong> adult neurogenesis to improve<br />
cognitive functions <strong>in</strong> Down syndrome<br />
Team: Andrea Contestabile, Diego Ghezzi, Fabio Benfenati, Laura Gaspar<strong>in</strong>i<br />
Fund<strong>in</strong>g: Lejeune Foundation + IIT + pend<strong>in</strong>g<br />
Down syndrome (DS) patients develop neuropathological lesions typical <strong>of</strong> Alzheimer disease (AD) by<br />
the fourth decade <strong>of</strong> life with cerebral accumulation <strong>of</strong> amyloid-beta (Ab) deposits and <strong>in</strong>traneuronal<br />
<strong>in</strong>clusions made <strong>of</strong> hyperphosphorylated tau prote<strong>in</strong> (neur<strong>of</strong>ibrillary tangles, NFTs). Mice models <strong>of</strong><br />
DS recapitulate many aspects <strong>of</strong> the pathology, <strong>in</strong>clud<strong>in</strong>g: APP-dependent chol<strong>in</strong>ergic dysfunctions<br />
dur<strong>in</strong>g ag<strong>in</strong>g and tau hyperphosphorylation. This <strong>research</strong> l<strong>in</strong>e aims to better characterize the<br />
neurodegeneration process driven by APP overexpression and tau hyperphosphorylation <strong>in</strong> a DS mouse<br />
model and evaluate potential therapeutic <strong>in</strong>terventions to alleviate the pathology. Down syndrome is<br />
also characterized by decreased neurogenesis both dur<strong>in</strong>g development and adulthood. Adult<br />
neurogenesis <strong>in</strong> the DG <strong>of</strong> rodents has been associated to memory formation and hippocampaldependent<br />
learn<strong>in</strong>g. This <strong>research</strong> l<strong>in</strong>e aims to elucidate the impact <strong>of</strong> adult neurogenesis on learn<strong>in</strong>g<br />
and memory <strong>in</strong> a mouse model <strong>of</strong> DS and assess the effect <strong>of</strong> pharmacological treatments able to<br />
enhance the neurogenesis process.
Nome Armando Genazzani<br />
Contatti<br />
Tel.<br />
E mail<br />
DiSCAFF, Via Bovio 6 - Università del Piemonte Orientale, Novara<br />
0321-375827<br />
genazzani@pharm.unipmn.it<br />
Istituto/Dipartimento DiSCAFF, Università del Piemonte Orientale<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse identificata Malattia di Alzheimer e trasduzione del segnale legata al calcio<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Role <strong>of</strong> calcium-dependent gene expression and prote<strong>in</strong> traffick<strong>in</strong>g <strong>in</strong><br />
shap<strong>in</strong>g post-synaptic activity: implications for neurodegenerative<br />
diseases<br />
Ente f<strong>in</strong>anziatore Fondazione Cariplo<br />
Durata progetto 2 anni<br />
Abstract del progetto Alzheimer disease (AD) is a progressive neurodegenerative disease<br />
characterized by a progressive cognitive and memory decl<strong>in</strong>e, <strong>in</strong>creas<strong>in</strong>gly<br />
frequent with advanc<strong>in</strong>g age until it affects as many as 50% <strong>of</strong> <strong>in</strong>dividuals<br />
85 years <strong>of</strong> age and older. There is no remission <strong>in</strong> the progression <strong>of</strong> the<br />
disease nor are there any truly effective pharmacological <strong>in</strong>terventions<br />
available at present. In the framework <strong>of</strong> an age<strong>in</strong>g society a better<br />
understand<strong>in</strong>g <strong>of</strong> pathogenic mechanisms and identification <strong>of</strong> new<br />
pharmacological targets are key strategies.<br />
For many years, AD was attributed to neuronal death <strong>in</strong>duced by deposits<br />
<strong>of</strong> fibrillar Amyloid b. The production <strong>of</strong> amyloid ß (Aß) is mediated by the<br />
concerted action <strong>of</strong> two different secretases, namely ß-secretase (BACE)<br />
and gamma-secretase, show<strong>in</strong>g a proteolytic action on the amyloid<br />
precursor prote<strong>in</strong> (APP). Alternatively, APP can be subjected to the<br />
proteolytic cleavage by a--secretase (ADAM10), which occurs with<strong>in</strong> the<br />
sequence <strong>of</strong> Aß, thus preclud<strong>in</strong>g the formation <strong>of</strong> the amyloidogenic<br />
fragments. Yet, a recent view suggests that Abeta production has an<br />
impact primarily on the post synaptic compartment <strong>of</strong> the excitatory<br />
glutamatergic synapse (this preced<strong>in</strong>g cell death and correlat<strong>in</strong>g with<br />
cl<strong>in</strong>ical features <strong>of</strong> the disease), as demonstrated by <strong>in</strong> vitro studies, thus<br />
<strong>in</strong>dicat<strong>in</strong>g Alzheimer disease as a synaptopathy.<br />
An additional biochemical parameter which has been l<strong>in</strong>ked to both<br />
synaptic plasticity events and neurodegeneration is Calcium. The l<strong>in</strong>k<br />
between calcium and Alzheimer has been strengthened by a number <strong>of</strong><br />
<strong>in</strong>dependent groups. Calcium dyshomeostasis appears to be an <strong>in</strong>tegral<br />
part <strong>of</strong> the pathology, either because it can <strong>in</strong>fluence Abeta production or<br />
because it can be altered by amyloid beta overproduction.<br />
This project will focus primarily <strong>in</strong> dissect<strong>in</strong>g the contribution <strong>of</strong> calcium<br />
dyshomeostasis to the AD synaptopathy. Thus, the ma<strong>in</strong> goal <strong>of</strong> the<br />
project is to <strong>in</strong>vestigate the l<strong>in</strong>k between dys-regulation <strong>of</strong> calcium<br />
signall<strong>in</strong>g and early stages <strong>of</strong> AD – both at cellular and molecular level -<br />
work<strong>in</strong>g on the hypothesis that this neurodegenerative disorder is a<br />
synaptopathy. In particular we will firstly characterize calcium dependent<br />
processes <strong>in</strong> an <strong>in</strong>novative animal model <strong>of</strong> Alzheimer disease obta<strong>in</strong>ed<br />
by uncoupl<strong>in</strong>g ADAM10 from its cargo prote<strong>in</strong> SAP97 which regulates<br />
enzyme activity. Secondly, we will address the role <strong>of</strong> calcium <strong>in</strong> both<br />
traffick<strong>in</strong>g and gene expression <strong>of</strong> key synaptic prote<strong>in</strong>s <strong>in</strong> vitro and <strong>in</strong> <strong>in</strong><br />
vivo models <strong>of</strong> altered amyloid cascade.
The <strong>in</strong>vestigation <strong>of</strong> these objectives would provide novel <strong>in</strong>sights <strong>in</strong> the<br />
understand<strong>in</strong>g <strong>of</strong> the molecular basis <strong>of</strong> Alzheimer’s disease <strong>in</strong> early<br />
stages and would possibly contribute <strong>in</strong> identify<strong>in</strong>g new targets for<br />
therapeutic <strong>in</strong>tervention
Nome Dr. Andrea Contestabile<br />
Contatti<br />
Email: andrea.contestabile@iit.it<br />
Phone: ++39-010-71781785<br />
FAX: ++39-010-71781230<br />
Istituto/Dipartimento The <strong>Italian</strong> Institute <strong>of</strong> Technology (IIT)<br />
Department <strong>of</strong> Neuroscience and Bra<strong>in</strong> Technologies<br />
Via Morego 30, 16163 Genova, Italy<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse Down syndrome (DS) or trisomy 21 is the lead<strong>in</strong>g cause <strong>of</strong> genetically-def<strong>in</strong>ed<br />
identificata mental retardation and is characterized by decreased cognitive functions,<br />
developmental defects, impaired neurogenesis and Alzheimer (AD)-like<br />
neurodegeneration dur<strong>in</strong>g ag<strong>in</strong>g. The progression <strong>of</strong> Alzheimer neuropathology <strong>in</strong><br />
DS <strong>in</strong>dividuals appears to be analogous to sporadic cases <strong>of</strong> AD with cerebral<br />
accumulation <strong>of</strong> amyloid-beta (A�) deposits (i.e., A� plaques) and <strong>in</strong>traneuronal<br />
<strong>in</strong>clusions made <strong>of</strong> hyperphosphorylated tau prote<strong>in</strong> (i.e., neur<strong>of</strong>ibrillary tangles,<br />
NFTs). However, its appearance is anticipated by at least twenty-thirty years with<br />
respect to the general population. The presence <strong>of</strong> an extra-copy <strong>of</strong> the<br />
A��precursor prote<strong>in</strong> (APP) gene, located on human chromosome 21 (HSA21), is<br />
believed to be directly responsible for early deposition <strong>of</strong> A� <strong>in</strong> DS bra<strong>in</strong>. The gene<br />
encod<strong>in</strong>g Dyrk1A is also located <strong>in</strong> the triplicated region <strong>of</strong> HSA21 and is<br />
overexpressed <strong>in</strong> DS bra<strong>in</strong>s. Recently it has been proposed that Dyrk1A may be<br />
<strong>in</strong>volved <strong>in</strong> tau hyperphosphorylation and NFTs formation typical <strong>of</strong> DS and AD.<br />
Dyrk1A phosphorylates tau at several sites, and such sites are<br />
hyperphosphorylated <strong>in</strong> adult DS bra<strong>in</strong>s. In addition, phosphorylation by Dyrk1A<br />
primes further phosphorylation <strong>of</strong> tau by Glycogen Synthase K<strong>in</strong>ase-3� (GSK-3��<br />
suggest<strong>in</strong>g that the extra copy <strong>of</strong> the Dyrk1A gene on HSA21 contributes to the<br />
early onset <strong>of</strong> AD neuropathology seen <strong>in</strong> DS. In fact, a role for Dyrk1A <strong>in</strong> AD<br />
neurodegeneration has been recently identified, therefore suggest<strong>in</strong>g a functional<br />
l<strong>in</strong>k between some <strong>of</strong> the triplicated genes found <strong>in</strong> Down syndrome and Alzheimer<br />
disease.<br />
The Ts65Dn mouse is the best characterized animal model <strong>of</strong> DS and carries an<br />
extra copy <strong>of</strong> the distal segment <strong>of</strong> mouse chromosome 16 which is synthenic to<br />
human chromosome 21. The Ts65Dn mouse recapitulates many aspects <strong>of</strong> DS,<br />
<strong>in</strong>clud<strong>in</strong>g: APP-dependent chol<strong>in</strong>ergic dysfunctions dur<strong>in</strong>g ag<strong>in</strong>g; Dyrk1A-mediated<br />
tau hyperphosphorylation and impairment <strong>of</strong> hippocampus-dependent memory<br />
function.<br />
Ts65Dn mice also display reduced adult neurogenesis <strong>in</strong> the two known adult<br />
neurogenic niche <strong>in</strong> mammalian bra<strong>in</strong>, i.e, the subventricular zone (SVZ) <strong>of</strong> the<br />
lateral ventricle and the subgranular zone (SGZ) <strong>of</strong> the dentate gyrus (DG) <strong>in</strong> the<br />
hippocampus. Adult neurogenesis has been also found to be reduced <strong>in</strong> several<br />
mouse models <strong>of</strong> AD, further support<strong>in</strong>g the notion <strong>of</strong> a functional connection<br />
between DS and AD pathological mechanisms. Adult neurogenesis <strong>in</strong> the DG <strong>of</strong><br />
rodents has been associated to memory formation and hippocampal-dependent<br />
learn<strong>in</strong>g such as spatial and contextual recognition. Decreased adult neurogenesis<br />
observed <strong>in</strong> DS and AD mouse models is therefore believed to play an important<br />
role <strong>in</strong> the impaired performance <strong>of</strong> these mice <strong>in</strong> hippocampus-depended<br />
memory tasks.<br />
GSK-3� <strong>in</strong>hibition has been identified has a possible therapeutic target for AD<br />
neurophatology. Accumulat<strong>in</strong>g evidence also <strong>in</strong>dicates that adult neurogenesis is<br />
negatively regulated by the activity <strong>of</strong> GSK3� through the <strong>in</strong>hibition <strong>of</strong> the �-<br />
Caten<strong>in</strong> pathway, and that adult DG neurogenesis can be stimulated by GSK3�<br />
<strong>in</strong>hibitors.
In order to identify effective pharmacological treatment to improve learn<strong>in</strong>g and<br />
memory <strong>in</strong> mouse models <strong>of</strong> DS that could be translated <strong>in</strong>to human therapy for<br />
both AD and DS we are currently evaluat<strong>in</strong>g the usefulness <strong>of</strong> GSK-3� <strong>in</strong>hibitors to<br />
stimulate adult DG neurogenesis and alleviate tau hyperphosphorylation <strong>in</strong> Ts65Dn<br />
mice.<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto Effects <strong>of</strong> lithium on cognitive functions, neurogenesis and Tau pathology <strong>in</strong><br />
Ts65Dn mice.<br />
Ente f<strong>in</strong>anziatore Fondation Jerome Lejeune, France<br />
Durata progetto 2 years<br />
Abstract del<br />
progetto<br />
Compell<strong>in</strong>g studies <strong>in</strong>dicate that impairment <strong>of</strong> adult neurogenesis and<br />
degenerative mechanisms driven by hyperphosphorylation <strong>of</strong> Tau are the ma<strong>in</strong><br />
determ<strong>in</strong>ants <strong>in</strong> reduc<strong>in</strong>g cognitive and memory function <strong>in</strong> animal models <strong>of</strong><br />
Down syndrome (DS). Indeed, adult neurogenesis is impaired <strong>in</strong> the dentate gyrus<br />
<strong>of</strong> the hippocampus <strong>in</strong> the Ts65Dn mouse, a DS model reproduc<strong>in</strong>g most<br />
neuropathological and cognitive deficits <strong>of</strong> the disease. We have recently shown<br />
that adm<strong>in</strong>istration <strong>of</strong> lithium to Ts65Dn mice is able to restore neurogenesis <strong>in</strong> the<br />
subventricular zone <strong>of</strong> the lateral ventricle, another neurogenetic area <strong>of</strong> the adult<br />
bra<strong>in</strong>. Lithium is an extensively used mood stabilizer and acts as an <strong>in</strong>hibitor <strong>of</strong><br />
Glycogen Synthase K<strong>in</strong>ase-3��(GSK-3�). GSK-3� activity enhances tau<br />
phosphorylation and is primed by dual-specificity tyros<strong>in</strong>e phosphorylated and<br />
regulated k<strong>in</strong>ase 1A (Dyrk1A), which is encoded by a gene triplicated <strong>in</strong> DS and<br />
Ts65Dn mice. Aim <strong>of</strong> the present project is to test whether lithium long-term<br />
adm<strong>in</strong>istration ameliorates cognitive performance <strong>in</strong> Ts65Dn mice by reduc<strong>in</strong>g<br />
accumulation <strong>of</strong> hyperphosphorylated tau and by stimulat<strong>in</strong>g neurogenesis,<br />
differentiation and <strong>in</strong>tegration <strong>of</strong> newly-born neurons. Lithium (2.4 g/kg <strong>of</strong> Li2CO3<br />
<strong>in</strong> the chow) will be adm<strong>in</strong>istered to Ts65Dn for 4 or 8 weeks start<strong>in</strong>g at 6 months<br />
<strong>of</strong> age. Hippocampus-dependent memory functions will be evaluated through<br />
novel object recognition, spontaneous T-maze alternation and geometric task tests<br />
performed at the end <strong>of</strong> lithium treatment. After the treatment, adult<br />
neurogenesis <strong>in</strong> the dentate gyrus <strong>of</strong> Ts65Dn mice will be assessed by BrdU label<strong>in</strong>g<br />
and evaluation <strong>of</strong> proliferation markers. The expression <strong>of</strong> neuronal differentiation<br />
markers will be analyzed to assess the maturation <strong>of</strong> newly generated neurons. The<br />
accumulation <strong>of</strong> hyperphosphorylated Tau will be quantitatively monitored by<br />
immunohistochemical and biochemical techniques. Our experimental approach will<br />
allow test<strong>in</strong>g a novel therapeutic approach for DS by simultaneously target<strong>in</strong>g two<br />
known pathological features affect<strong>in</strong>g cognitive functions.
Nome LAURA GASPARINI<br />
Contatti<br />
Laura.gaspar<strong>in</strong>i@iit.it<br />
Istituto/Dipartimento Fondazione Istituto <strong>Italian</strong>o di Tecnologia, Dipartimento di Neuroscienze<br />
e Neurotecnologia, Via Morego 30, 16163 Genova<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse identificata<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
The lab focuses on study<strong>in</strong>g key neuropathological molecular mechanisms<br />
<strong>of</strong> neurodegenerative diseases, with the view <strong>of</strong> understand<strong>in</strong>g the<br />
disease processes and to translate basic knowledge <strong>in</strong>to potential novel<br />
therapies.<br />
Tau-driven degeneration and neurotrophic response: search<strong>in</strong>g disease<br />
markers for drug screen<strong>in</strong>g. Accumulation <strong>of</strong> <strong>in</strong>traneuronal <strong>in</strong>cusions<br />
made <strong>of</strong> tau prote<strong>in</strong> is a pathological hallmark <strong>of</strong> the bra<strong>in</strong> <strong>of</strong> patients<br />
with tauopathies, <strong>in</strong>clud<strong>in</strong>g frontotemporal dementia and park<strong>in</strong>sonism<br />
l<strong>in</strong>ked to chromosome 17, parasupranuclear palsy, corticobasal<br />
degeneration and Alzheimer Disease (AD). Our <strong>research</strong> is aimed at<br />
provid<strong>in</strong>g <strong>in</strong>sight on alterations <strong>of</strong> neuronal activity associated with the<br />
onset and progression <strong>of</strong> tau pathology <strong>in</strong> transgenic disease models <strong>of</strong><br />
tauopathy <strong>in</strong> vitro and <strong>in</strong> vivo, to reveal key tau-driven pathological<br />
mechanisms, and identify potential molecular targets for drug discovery.<br />
Neuro<strong>in</strong>flammatory mechanisms <strong>in</strong> Alzheimer disease: role <strong>of</strong> β-amyloid<br />
aggregates <strong>in</strong> microglia activation. Neuro<strong>in</strong>flammation is one <strong>of</strong> the<br />
neuropathological features <strong>of</strong> Alzheimer Disease (AD) and is characterized<br />
by activation <strong>of</strong> <strong>in</strong>flammatory cells (i.e., astrocytes and microglia) <strong>in</strong> areas<br />
<strong>of</strong> the bra<strong>in</strong> affected by β-amyloid (Aβ) plaques and tau pathology, with<br />
production <strong>of</strong> altered levels <strong>of</strong> <strong>in</strong>flammatory mediators. Our lab<br />
<strong>in</strong>vestigate the pathogenic mechanisms underly<strong>in</strong>g AD-associated<br />
neuro<strong>in</strong>flammatory processes, with the ma<strong>in</strong> focus on understand<strong>in</strong>g the<br />
role on Aβ aggregated species <strong>in</strong> microglia activation.<br />
Pathogenic mechanisms driven by lam<strong>in</strong>B1 overexpression <strong>in</strong> adult<br />
onset leukodystrophy. Lam<strong>in</strong> B1 (LMNB1) is a component <strong>of</strong> the nuclear<br />
lam<strong>in</strong>a. It has been recently discovered that the presence <strong>of</strong> an extra copy<br />
<strong>of</strong> the gene encod<strong>in</strong>g this prote<strong>in</strong> causes autosomal dom<strong>in</strong>ant<br />
leukodystrophy (ADLD). ADLD is an <strong>in</strong>variably fatal disease characterized<br />
by white matter loss, movement disorders and dysautonomia. The<br />
pathogenic mechanisms by which LMNB1 gene duplication leads to<br />
disease are unknown. Our <strong>research</strong> aims at clarify<strong>in</strong>g such mechanisms<br />
us<strong>in</strong>g <strong>in</strong> vitro and <strong>in</strong> vivo experimental models.<br />
Tau-driven degeneration and neurotrophic response: search<strong>in</strong>g disease<br />
markers for drug screen<strong>in</strong>g<br />
Ente f<strong>in</strong>anziatore Compagnia di San Paolo<br />
Durata progetto 3 years<br />
Abstract del progetto<br />
Background: Neur<strong>of</strong>ibrillary tangles (NFTs) are neuropathological<br />
hallmarks <strong>of</strong> human tauopathies. Reduced levels <strong>of</strong> neurotroph<strong>in</strong> TrkB<br />
receptor have been found <strong>in</strong> NFT-bear<strong>in</strong>g neurons. Rationale and<br />
objectives: Initial f<strong>in</strong>d<strong>in</strong>gs showed that ret<strong>in</strong>al ganglion cells (RGCs) <strong>of</strong><br />
human P301S tau transgenic (TG) mice develop NFTs and have impaired
axon outgrowth upon stimulation with neurotroph<strong>in</strong>s (CNTF/BDNF). We<br />
propose to <strong>in</strong>vestigate the mechanisms by which tauopathy affects<br />
neurotroph<strong>in</strong> signall<strong>in</strong>g and neuronal activity to identify disease markers<br />
and provide a test-bed for evaluat<strong>in</strong>g potential neuroprotective drugs <strong>in</strong><br />
vitro. Expected results and relevance: Reveal characteristic signatures <strong>of</strong><br />
tau pathology, suitable to <strong>in</strong>vestigate potential tau-target<strong>in</strong>g<br />
therapeutics.<br />
Titolo progetto<br />
Cl<strong>in</strong>ical, neuroradiological and molecular <strong>in</strong>vestigation <strong>of</strong> Adult-onset<br />
Autosomal Dom<strong>in</strong>ant LeukoDystrophy (ADLD): dissection <strong>of</strong> Lam<strong>in</strong> B1mediated<br />
pathophysiological mechanisms <strong>in</strong> cellular and mouse models.<br />
Ente f<strong>in</strong>anziator TELETHON<br />
Durata progetto 3 years<br />
Abstract del progetto Overall objectives: To clarify Lam<strong>in</strong> B1 (LMNB1)-mediated pathogenic<br />
mechanisms <strong>of</strong> adult-onset autosomal dom<strong>in</strong>ant leukodystrophy (ADLD)<br />
and provide tools to study future therapies. Background/Rationale: ADLD<br />
is a rare, progressive and fatal genetic disease generally characterized by<br />
autonomic failure at onset. We have collected two ADLD families with<br />
LMNB1 gene duplication, and a third with a variant ADLD and an<br />
unknown mutation affect<strong>in</strong>g LMNB1 expression. Expected results: The<br />
project will enhance our knowledge on genetic, cl<strong>in</strong>ical and<br />
neuroradiological features <strong>of</strong> ADLD. It will shed light on its<br />
pathophysiology and on LMNB1-mediated pathogenic mechanisms. It will<br />
generate an ADLD mouse model and provide tools (i.e., cl<strong>in</strong>ical<br />
biomarkers, expression constructs, gene-reporter assays, cellular models)<br />
which will be key elements for further studies <strong>of</strong> the disease and its<br />
therapy.
Nome Michele Mazzanti<br />
Contatti<br />
michele.mazzanti@unimi.it<br />
+39 2 50314958 +39 2 50314959<br />
Istituto/Dipartimento Dept. <strong>of</strong> Bimolecular Science and Biotechnology<br />
Proposta di ricerca Investigation on early markers dur<strong>in</strong>g neurodegenerative process<br />
Area di <strong>in</strong>teresse identificata<br />
D. Oxidative Stress and neurodegeneration<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
Beta-amyloid effect on ret<strong>in</strong>a cells.<br />
Investigation on Chloride Intracellular Channel 1 (CLIC1) prote<strong>in</strong> modulation to use as an<br />
early marker dur<strong>in</strong>g neurodegenerative process <strong>in</strong>duced by amyloid compounds.<br />
Merz Biotech, Germany<br />
<strong>Italian</strong> Research M<strong>in</strong>istery<br />
1 year<br />
2 years<br />
One <strong>of</strong> the major apprehensions <strong>of</strong> contemporary society is population ag<strong>in</strong>g.<br />
Paradoxically, scientific discoveries applied to medic<strong>in</strong>e have significantly <strong>in</strong>creased the<br />
life expectation. However, older populations create new medical problems that, once<br />
episodic, are now common <strong>in</strong> a grow<strong>in</strong>g number <strong>of</strong> ag<strong>in</strong>g <strong>in</strong>dividuals.<br />
<strong>Neurodegenerative</strong> diseases play a predom<strong>in</strong>ant role <strong>in</strong> this new scenario. A major<br />
neurodegeneration disorder is Alzheimer Disease (AD), but this is poorly understood<br />
and not only we are without a successful therapy but also a proper identification <strong>of</strong> the<br />
disease <strong>in</strong> liv<strong>in</strong>g humans is, at the moment, problematic. The appropriate diagnosis <strong>of</strong><br />
an AD patient can be obta<strong>in</strong>ed only from histological analysis <strong>of</strong> post-mortem bra<strong>in</strong><br />
tissue. AD is characterized by an accumulation <strong>in</strong> neuritic plaques <strong>of</strong> beta-amyloid (A�)<br />
prote<strong>in</strong>, <strong>in</strong>filtrated by reactive microglia. Although A� and <strong>in</strong> particular its oligomeric<br />
forms has been shown to exert a toxic effect on neurons, the role <strong>of</strong> microglia <strong>in</strong><br />
neuronal <strong>in</strong>jury rema<strong>in</strong>s unclear. Microglia activation is likely to be a key element <strong>in</strong> the<br />
pathophysiology <strong>of</strong> the local <strong>in</strong>flammation that accompanies AD. Activation <strong>of</strong> microglia<br />
by A� prote<strong>in</strong> triggers the production <strong>of</strong> toxic free radicals and pro <strong>in</strong>flammatory<br />
cytok<strong>in</strong>es which are responsible for the neuronal degeneration. Previous studies<br />
demonstrated that A� prote<strong>in</strong> stimulation <strong>of</strong> neonatal rat microglia specifically lead to<br />
the <strong>in</strong>crease <strong>of</strong> Chloride Intracellular Channel 1 (CLIC1) expression after 48 hours <strong>of</strong><br />
stimulation. This was not the case when microglia was activated by phorbol myristate<br />
acid (PMA), Lipopolysaccharide, colony stimulat<strong>in</strong>g factor or basic fibroblast grow<strong>in</strong>g<br />
factor, thus quot<strong>in</strong>g CLIC1 as specifically up-regulated by amyloid compounds. The<br />
cellular and molecular characterization <strong>of</strong> the prote<strong>in</strong> has revealed that CLIC1 is ma<strong>in</strong>ly<br />
cytoplasmatic and is able to shuttle between the aqueous and the membrane phase<br />
depend<strong>in</strong>g on the activation state <strong>of</strong> the cell. In the membrane, the prote<strong>in</strong> acts as a<br />
chloride conductance, allow<strong>in</strong>g ionic flow to compensate the negative charges extruded<br />
by the membrane NADPH oxidase dur<strong>in</strong>g reactive oxygen species (ROS) production. We<br />
have recently showed that suppression <strong>of</strong> CLIC1 functional expression us<strong>in</strong>g (i) <strong>in</strong>hibition<br />
<strong>of</strong> the CLIC1 current, (ii) replacement <strong>of</strong> extracellular Cl - with impermeant anions, (iii)<br />
transfection <strong>of</strong> microglia cells with specific siRNA, or (iv) addition <strong>of</strong> an antibody aga<strong>in</strong>st<br />
the channel prote<strong>in</strong>, significantly reduced Aβ-<strong>in</strong>duced ROS production. In a triple<br />
mutant Alzheimer mouse model, CLIC1 prote<strong>in</strong> is up-regulated and show a predom<strong>in</strong>ant<br />
membrane localization <strong>in</strong> microglia cells <strong>of</strong> cerebral cortex. Furthermore, <strong>in</strong> human<br />
bra<strong>in</strong>s <strong>of</strong> Alzheimer patients, CLIC1, like several other prote<strong>in</strong>s, is drastically up<br />
regulated. To explore the idea that CLIC1 prote<strong>in</strong> could work as a therapeutic target as<br />
well as specific early marker for amyloid based diseases, we will <strong>in</strong>vestigate its<br />
distribution and modulation <strong>in</strong> two other neurodegenerative processes. Prion Prote<strong>in</strong><br />
syndrome (PrPsc) and Sp<strong>in</strong>ocerebellar Ataxia 1 (SCA-1) share with AD the predom<strong>in</strong>ant<br />
�-sheet structure <strong>of</strong> the presumed pathological prote<strong>in</strong>. As typical amyloid compounds,<br />
A�, PrP and Atax<strong>in</strong>-1 are characterized by <strong>in</strong>soluble deposits. However, while the action<br />
mechanism <strong>of</strong> the first two takes place <strong>in</strong> the extracellular environment, Atax<strong>in</strong>-1<br />
accumulates <strong>in</strong> the cell nucleus.
The goal <strong>of</strong> our study is to pursue CLIC1 as a molecular target for early diagnosis and<br />
possibly for a therapy <strong>of</strong> amyloid <strong>in</strong>duced neurodegeneration. S<strong>in</strong>ce its specific reaction<br />
to amyloid peptides, CLIC1 could represent an unambiguous marker <strong>of</strong> several amyloid<br />
based neurodegenerative process. It is reasonable to th<strong>in</strong>k that its marked <strong>in</strong>crease <strong>in</strong><br />
the bra<strong>in</strong> immune system occurs <strong>in</strong> the early stage <strong>of</strong> the pathological process follow<strong>in</strong>g<br />
a chronic state <strong>of</strong> oxidative stress <strong>in</strong>duced by the different amyloids accumulation. We<br />
will use two different strategies to assess this possibility. It is well known that dur<strong>in</strong>g<br />
neurodegenerative states the central nervous system (CNS) is colonized by systemic<br />
macrophages recruited from the blood stream. It is likely that the up regulation <strong>of</strong> CLIC1<br />
prote<strong>in</strong> could be a general feature <strong>of</strong> all macrophages. This will be tested both <strong>in</strong> mouse<br />
models <strong>of</strong> AD, PrPsc and SCA-1 as well as <strong>in</strong> blood samples from patients. Alternatively,<br />
we will explore the possibility to detect CLIC1 <strong>in</strong>crement <strong>in</strong> the most accessible part <strong>of</strong><br />
the CNS: the ret<strong>in</strong>a. Activation <strong>of</strong> the CNS immune system and neurodegenerative<br />
process were described <strong>in</strong> the eyes <strong>of</strong> AD, PrPsc and SCA-1 patients. Degeneration <strong>of</strong><br />
ret<strong>in</strong>al ganglion cells (RGCs) follows the same pathways <strong>of</strong> neuronal cell death <strong>in</strong><br />
neurodegenerative diseases. Thus, CLIC1 prote<strong>in</strong> <strong>in</strong>crease should be easily detected <strong>in</strong><br />
the ret<strong>in</strong>a immunocompetent cells system, follow<strong>in</strong>g a chronic condition <strong>of</strong> oxidative<br />
stress that is belive to anticipate RGC apoptosis.
1. MECHANISMS OF NEURODEGENERATION<br />
C. Neuro Inflammation
Nome GABRIELA CONSTANTIN, M.D., Ph.D.<br />
Assistant Pr<strong>of</strong>essor <strong>of</strong> Pathology<br />
Contatti<br />
Email: gabriela.constant<strong>in</strong>@univr.it<br />
Tel: 39-045 8027102; 8027120; Fax: 39-0458027127<br />
Istituto/Dipartimento Department <strong>of</strong> Pathology, University <strong>of</strong> Verona, Strada le Grazie 8,<br />
37134, Italy<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse identificata<br />
Role <strong>of</strong> Inflammation mechanisms <strong>in</strong> neurodegenerative diseases<br />
In recent years grow<strong>in</strong>g evidence show that blood-bra<strong>in</strong> barrier (BBB) breakdown and <strong>in</strong>flammatory<br />
responses, may <strong>in</strong>itiate and/or contribute to a ‘‘vicious circle’’ <strong>of</strong> the disease process, result<strong>in</strong>g <strong>in</strong><br />
progressive synaptic and neuronal dysfunction and loss <strong>in</strong> disorders such as Alzheimer’s disease (AD),<br />
Park<strong>in</strong>son’s disease, amyotrophic lateral sclerosis, multiple sclerosis, and others (Zlokovic, Neuron 2008).<br />
In fact, it is clearly emerg<strong>in</strong>g that a better understand<strong>in</strong>g <strong>of</strong> AD <strong>in</strong>flammatory and immunoregulatory<br />
processes may lead to the development <strong>of</strong> anti-<strong>in</strong>flammatory approaches that may help to slow-down or<br />
block the progression <strong>of</strong> this devastat<strong>in</strong>g disorder.<br />
Our group has established expertise <strong>in</strong> neuro<strong>in</strong>flammation/neuroimmunology field and will perform an<br />
<strong>in</strong>terdiscipl<strong>in</strong>ary study to explore the role <strong>of</strong> vascular <strong>in</strong>flammation mechanisms and the role <strong>of</strong><br />
leukocytes and leukocyte traffick<strong>in</strong>g <strong>in</strong> the pathogenesis <strong>of</strong> AD.<br />
The follow<strong>in</strong>g ma<strong>in</strong> <strong>research</strong> l<strong>in</strong>es will be developed:<br />
1. Characterization <strong>of</strong> vascular <strong>in</strong>flammation and leukocyte-endothelial <strong>in</strong>teractions <strong>in</strong> animal models <strong>of</strong><br />
AD. Our team has previously shown that leukocyte adhesion to bra<strong>in</strong> endothelium leads to BBB damage<br />
and contribute to neuronal loss (Fabene et al., Nat. Med. 2008). We will first study BBB leakage and<br />
vascular <strong>in</strong>flammation by identify<strong>in</strong>g adhesion mechanisms able to mediate leukocyte-endothelial<br />
<strong>in</strong>teractions <strong>in</strong> bra<strong>in</strong> vessels. Then we will study the select<strong>in</strong>s, muc<strong>in</strong>s, <strong>in</strong>tegr<strong>in</strong>s and chemok<strong>in</strong>es <strong>in</strong>volved<br />
<strong>in</strong> roll<strong>in</strong>g and firm arrest <strong>of</strong> leukocyte subpopulations such as neutrophils, monocytes, Th1 and Th17 cells,<br />
which were able to <strong>in</strong>teract with endothelium <strong>in</strong> bra<strong>in</strong> microcirculation <strong>of</strong> AD mice <strong>in</strong> prelim<strong>in</strong>ary studies<br />
performed by our team. To this aim, we will use our established expertise <strong>in</strong>: <strong>in</strong> vivo sta<strong>in</strong><strong>in</strong>g, <strong>in</strong> vivo<br />
Imag<strong>in</strong>g System IVIS ® 200 (Caliper Life Sciences) and <strong>in</strong>travital microscopy <strong>in</strong> cortical microcirculation<br />
(Constant<strong>in</strong> et al., Immunity, 2000; Battist<strong>in</strong>i et al., Blood 2003; Pluch<strong>in</strong>o et al., Nature 2005; Fabene et al.,<br />
Nat. Med. 2008; Bolom<strong>in</strong>i-Vittori et al., Nat. Immunol., 2009; Deban et al., Nat. Immunol., <strong>in</strong> press). F<strong>in</strong>ally,<br />
we will study the effect <strong>of</strong> adhesion mechanism blockade whether by <strong>in</strong>hibitory antibodies or genetic<br />
deficiency on the <strong>in</strong>duction and evolution <strong>of</strong> AD and will identify new potential therapeutic targets for AD.<br />
2. Study <strong>of</strong> neuro-imuno <strong>in</strong>teractions by us<strong>in</strong>g two-photon laser scan<strong>in</strong>g microscopy (TPLSM) <strong>in</strong> AD<br />
cortex. Leukocyte motility behavior <strong>in</strong>side the cortex <strong>of</strong> transgenic animals with AD will be studied <strong>in</strong><br />
relation to the vic<strong>in</strong>ity <strong>of</strong> blood vessels, amyloid deposition and presence <strong>of</strong> neur<strong>of</strong>ibrillary tangles. Tak<strong>in</strong>g<br />
<strong>in</strong>to account our prelim<strong>in</strong>ary confocal microscopy studies show<strong>in</strong>g that monocyte, Th1 and Th17 cells<br />
migrate <strong>in</strong>to the cortex <strong>of</strong> AD mice, we will study the cell-cell contacts between immune cells and neural<br />
cells us<strong>in</strong>g transgenic mice express<strong>in</strong>g fluorescent neurons or glial cell populations. This <strong>research</strong> l<strong>in</strong>e will<br />
be developed based on our TPLSM expertise (Rossi et al., submitted) and our <strong>in</strong> vivo confocal microscopy<br />
facility, which consists <strong>of</strong> a customized upright Leica TCS SP5 AOBS system formed by: microscope DM6000<br />
equipped with a complete set <strong>of</strong> PlanApo objectives, ultrafast scann<strong>in</strong>g head SP5 AOBS coupled to Ar-
HeNe sources and a mode-locked Ti:Sapphire Chameleon Ultra II laser (Coherent Inc).<br />
Overall these studies represent a novel and orig<strong>in</strong>al contribution to the understand<strong>in</strong>g <strong>of</strong> AD pathogenesis<br />
and have the potential to identify new therapeutic targets <strong>in</strong> AD.<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto Leukocyte recruitment: molecular mechanisms and pathological aspects<br />
Ente f<strong>in</strong>anziatore<br />
Fondazione Cariverona<br />
Durata progetto<br />
February 1, 2009 - January 30, 2011<br />
Abstract del progetto The <strong>research</strong> activity <strong>in</strong>cludes 3 tasks: Task 1. Mechanisms <strong>in</strong>volved <strong>in</strong> the<br />
control <strong>of</strong> granulocyte and monocyte recruitment by Src tyros<strong>in</strong> k<strong>in</strong>ases;<br />
Task 2. Role <strong>of</strong> Rap1, cdc42 and PIP5KC <strong>in</strong> the control <strong>of</strong> the modalities <strong>of</strong><br />
<strong>in</strong>tegr<strong>in</strong> activation by chemiotactic factors <strong>in</strong> T and B lymphocytes; Task 3.<br />
Role <strong>of</strong> Src-family tyros<strong>in</strong> k<strong>in</strong>ases <strong>in</strong> the migration <strong>of</strong> leukocytes <strong>in</strong><br />
<strong>in</strong>flamed bra<strong>in</strong> vessels and <strong>in</strong> the <strong>in</strong>duction <strong>of</strong> neurodegenerative diseases<br />
Titolo progetto<br />
Adipose-derived stem cells (ADSC) therapy <strong>in</strong> experimental autoimmune<br />
encephalomyelitis<br />
Ente f<strong>in</strong>anziatore National Multiple Sclerosis Society, New York, USA<br />
Durata progetto July 1, 2009- June 30, 2011<br />
Abstract del progetto This project has two objectives. The first objective is focused on the study<br />
<strong>of</strong> the cl<strong>in</strong>ical and neuropathological effect <strong>of</strong> ADSC on experimental<br />
autoimmune encephalomyelitis (EAE), which represents the animal model<br />
<strong>of</strong> multiple sclerosis, a neurodegenerative disease. The second objective<br />
is to study the immunomodulatory mechanisms controll<strong>in</strong>g the effect <strong>of</strong><br />
ADSC on EAE.
Name Mar<strong>in</strong>a Bentivoglio, MD, Pr<strong>of</strong>essor<br />
Contacts<br />
Office: +39-045-8027158; fax: +39-045-8027163; e-mail:<br />
mar<strong>in</strong>a.bentivoglio@univr.it<br />
Istituto/Dipartimento Department <strong>of</strong> Neurological, Neuropsychological, Morphological and<br />
Motor Sciences – Medical Faculty – University <strong>of</strong> Verona<br />
Strada Le Grazie 8, 37134 Verona, Italy<br />
Research proposal<br />
Regional vulnerability <strong>of</strong> the ag<strong>in</strong>g bra<strong>in</strong> to neurodegeneration and immune regulatory mechanisms<br />
Background and aims: A wealth <strong>of</strong> evidence <strong>in</strong> the last years has <strong>in</strong>dicated that normal ag<strong>in</strong>g is hallmarked<br />
by low-grade chronic <strong>in</strong>flammatory activity, with <strong>in</strong>creased production <strong>of</strong> pro<strong>in</strong>flammatory cytok<strong>in</strong>es both<br />
peripherally and <strong>in</strong> the bra<strong>in</strong>, and decreases <strong>of</strong> anti-<strong>in</strong>flammatory mediators. Data from our laboratory<br />
(e.g. Deng et al 2006; Sadki et al., Neurobiol. Ag<strong>in</strong>g, 28, 296-305, 2007. Xu et al., Bra<strong>in</strong> Behav. Immun. 1,<br />
138-152, 2010) have shown <strong>in</strong> mice an <strong>in</strong>crease <strong>of</strong> the immune responsiveness <strong>of</strong> the ag<strong>in</strong>g bra<strong>in</strong> (at the<br />
molecular and cellular levels, the latter <strong>in</strong>clud<strong>in</strong>g glial cells and T-cell recruitment). This is <strong>in</strong> contrast with<br />
the known peripheral decl<strong>in</strong>e <strong>of</strong> <strong>in</strong>nate immunity dur<strong>in</strong>g senescence, and could be <strong>in</strong>volved not only <strong>in</strong><br />
cognitive decl<strong>in</strong>e but also <strong>in</strong> the vulnerability <strong>of</strong> the ag<strong>in</strong>g bra<strong>in</strong> to neurodegeneration. On the other hand,<br />
and importantly, not only ag<strong>in</strong>g is the primary risk factor for neurodegenerative diseases, <strong>in</strong>clud<strong>in</strong>g<br />
Alzheimer’s disease (AD), but also these diseases are hallmarked by regional vulnerability <strong>in</strong> the bra<strong>in</strong>,<br />
which is still elusive. It is, therefore, <strong>of</strong> primary <strong>in</strong>terest to assess whether immune regional changes <strong>in</strong> the<br />
ag<strong>in</strong>g bra<strong>in</strong> are implicated <strong>in</strong> its susceptibility to neurodegeneration. To this purpose, the current proposal<br />
aims at <strong>in</strong>vestigat<strong>in</strong>g: i) regional immune-regulatory changes <strong>in</strong> the ag<strong>in</strong>g bra<strong>in</strong>, and ii) the significance <strong>of</strong><br />
such changes <strong>in</strong> terms <strong>of</strong> vulnerability <strong>of</strong> different bra<strong>in</strong> regions to neurodegenerative <strong>in</strong>sults dur<strong>in</strong>g<br />
senescence.<br />
Plan <strong>of</strong> work: Step 1: Analyses <strong>of</strong> the follow<strong>in</strong>g parameters <strong>in</strong> mice <strong>of</strong> young age versus an advanced age,<br />
and <strong>in</strong> transgenic mice which provide AD models: gene pr<strong>of</strong>il<strong>in</strong>g (by means <strong>of</strong> microarrays and quantitative<br />
real-time RT-PCR) <strong>of</strong> immune-regulatory genes (<strong>in</strong>clud<strong>in</strong>g adhesion molecules, complement, cytok<strong>in</strong>e and<br />
chemok<strong>in</strong>e receptors, MHC antigens, Toll receptors, etc.), and immunophenotyp<strong>in</strong>g <strong>of</strong> cells (microglia,<br />
astrocytes, perivascular macrophages, T-cell subtypes, dendritic cells) <strong>in</strong> different dissected bra<strong>in</strong> regions<br />
(neocortex, hippocampus, hypothalamus, midbra<strong>in</strong>, etc); magnetic resonance imag<strong>in</strong>g with ultra-small<br />
superparamagnetic particles <strong>of</strong> iron oxide (USPIO) to visualize regional cellular <strong>in</strong>filtration. Step 2: A:<br />
Application <strong>of</strong> challenges with different potentially beneficial or detrimental approaches (pro<strong>in</strong>flammatory<br />
stimuli, like lipopolysaccharide chronic adm<strong>in</strong>istration; anti-<strong>in</strong>flammatory therapy; enriched environment,<br />
which is known to exert a beneficial effect; chronic sleep restriction -frequent dur<strong>in</strong>g normal ag<strong>in</strong>g and<br />
known to affect cognitive performance), and test the outcome <strong>of</strong> these challenges on immune-regulatory<br />
gene expression, neurodegeneration and behavior/cognitive performance. B: Investigate the eventual<br />
occurrence <strong>of</strong> neurodegeneration dur<strong>in</strong>g ag<strong>in</strong>g <strong>in</strong> mice with targeted deletion <strong>of</strong> immune molecules (e.g.<br />
STAT-I signal<strong>in</strong>g pathway knockout, <strong>in</strong>terferon-gamma or its receptor knock-out, etc.) versus wild-type<br />
littermates.<br />
Identified area <strong>of</strong> <strong>in</strong>terest<br />
Current fund<strong>in</strong>g<br />
Project title<br />
Prediction <strong>of</strong> cognitive properties <strong>of</strong> new drug candidates for<br />
neurodegenerative diseases <strong>in</strong> early cl<strong>in</strong>ical development (Acronym:
Fund<strong>in</strong>g agency European Commission<br />
Project duration<br />
01/24/2010- 01/23/2014<br />
Project abstract<br />
PHARMA-COG). IMI/115009 - IP (Integrated project)<br />
(note: mur<strong>in</strong>e models <strong>of</strong> AD are available <strong>in</strong> the framework <strong>of</strong> this project)<br />
Recently the EU Council <strong>of</strong> M<strong>in</strong>isters for Health underl<strong>in</strong>ed the<br />
importance <strong>of</strong> generat<strong>in</strong>g novel therapeutic agents both for symptomatic<br />
and disease modify<strong>in</strong>g treatment <strong>of</strong> Alzheimer’s disease (AD). However,<br />
despite the <strong>in</strong>crease <strong>in</strong> translational medic<strong>in</strong>e activities attrition rates still<br />
rema<strong>in</strong> high and progress <strong>in</strong> br<strong>in</strong>g<strong>in</strong>g these biomarkers and models to a<br />
state <strong>of</strong> read<strong>in</strong>ess as effective decision mak<strong>in</strong>g tools is slow as each<br />
academic and pharmaceutical company work <strong>in</strong> isolation.<br />
Br<strong>in</strong>g<strong>in</strong>g together European experts <strong>in</strong> technologies fully translatable<br />
from animal to human, experts <strong>in</strong> translational medic<strong>in</strong>e, drug discovery<br />
and mathematical modell<strong>in</strong>g, PHARMA-COG proposes to accelerate this<br />
validation us<strong>in</strong>g a ‘MATRIX’ approach i.e. conduct<strong>in</strong>g parallel experiments<br />
<strong>in</strong> animals and human us<strong>in</strong>g a comprehensive and standardised battery <strong>of</strong><br />
behavioural, neurophysiological, morphological/functional imag<strong>in</strong>g, and<br />
biochemical endpo<strong>in</strong>ts to:<br />
o develop models with greater predictive capacity for the cl<strong>in</strong>ics<br />
o develop and validate translatable pharmacodynamic markers to<br />
support dose selection<br />
o develop challenge models to support early h<strong>in</strong>t <strong>of</strong> efficacy studies<br />
o identify and validate <strong>of</strong> markers <strong>of</strong> disease progression and patient<br />
stratification.
Nome Michela Matteoli<br />
Contatti<br />
Tel.<br />
E mail<br />
02 50317097<br />
Michela.matteoli@unimi.it<br />
Istituto/Dipartimento Farmacologia Chemioterapia e Tossicologia medica<br />
Proposta di ricerca<br />
Toxic effects <strong>of</strong> beta-amyloid mediated by microglial cells<br />
Area di <strong>in</strong>teresse identificata Neurotoxic stimuli<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto
Nome Elisabetta VEGETO<br />
Contatti<br />
Tel.<br />
E mail<br />
Via Balzaretti, 9<br />
02 50318263<br />
elisabetta.vegeto@unimi.it<br />
Istituto/Dipartimento Dept. Pharmacological Sciences, University <strong>of</strong> Milan<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse identificata Gender and hormonal/endocr<strong>in</strong>e signals <strong>in</strong> neuro<strong>in</strong>flammation: role <strong>in</strong><br />
Alzheimer’s disease and bra<strong>in</strong> ag<strong>in</strong>g<br />
Publications from the laboratory demonstrated a key role for estrogens <strong>in</strong><br />
regulat<strong>in</strong>g microglia cells reactivity <strong>in</strong> an experimental model <strong>of</strong><br />
Alzheimer’s disease and <strong>in</strong> other neuro<strong>in</strong>flammatory conditions.<br />
Accord<strong>in</strong>gly, we showed that hormonal manipulations, achieved through<br />
experimental models <strong>of</strong> menopause and estrogen therapy, imp<strong>in</strong>ge on<br />
neuro<strong>in</strong>flammatory signs <strong>in</strong> the ag<strong>in</strong>g female bra<strong>in</strong>. Consider<strong>in</strong>g that<br />
menopause is associated with a higher risk to develop AD <strong>in</strong> women and<br />
that estrogens are consistently associated with neuroprotective effects,<br />
our <strong>research</strong> is focused on the identification <strong>of</strong> the cellular and molecular<br />
targets <strong>of</strong> estrogens that modulate the susceptibility to<br />
neuro<strong>in</strong>flammation. S<strong>in</strong>ce estrogens action is mediated through the<br />
<strong>in</strong>teraction with specific <strong>in</strong>tracellular receptors, our studies are aimed at<br />
identify<strong>in</strong>g selective estrogenic drugs and appropriate biomarkers <strong>of</strong><br />
hormone signal<strong>in</strong>g <strong>in</strong> neuro<strong>in</strong>flammation.<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Estrogen activity <strong>in</strong> microglia as a potential pharmacological target for AD<br />
therapy (GP0127Y01)<br />
Ente f<strong>in</strong>anziatore Telethon; 126,000 Eu<br />
Durata progetto 3 yrs (2001-2003)<br />
Abstract del progetto This study was aimed at evaluat<strong>in</strong>g estrogens activity on the activation <strong>of</strong><br />
microglia cells that is evoked by beta-amyloid deposition <strong>in</strong> the bra<strong>in</strong> <strong>of</strong><br />
APP23 mice, an animal model <strong>of</strong> AD. Results show that withdrawal <strong>of</strong><br />
circulat<strong>in</strong>g estrogens through ovariectomy leads to an <strong>in</strong>creased number<br />
<strong>of</strong> amyloid deposits that show reactive microgliosis, whereas estrogens<br />
replacement reduce this event to control levels. These results support<br />
the hypothesis that sicrulat<strong>in</strong>g estrogens are beneficial signals that act<strong>in</strong>g<br />
also on the neuro<strong>in</strong>flammatory component <strong>of</strong> AD delay pathological signs<br />
<strong>of</strong> this disease.<br />
Titolo progetto Estrogens and Women Age<strong>in</strong>g (Contract no. 518245) Specific Targeted<br />
Research or Innovation Project<br />
Ente f<strong>in</strong>anziatore European Commission; 510,000 Eu<br />
Durata progetto 3 yrs (2005-2007)<br />
Abstract del progetto This project <strong>in</strong>vestigated on the efficacy <strong>of</strong> estrogenic drugs <strong>in</strong> reduc<strong>in</strong>g<br />
the neuro<strong>in</strong>flammatory response <strong>in</strong> the bra<strong>in</strong> <strong>of</strong> ag<strong>in</strong>g female mice, with<br />
particular emphasis on the tim<strong>in</strong>g <strong>of</strong> drug adm<strong>in</strong>istration <strong>in</strong> relation with<br />
menopause <strong>in</strong>duction. Results show that menopause potentiates the<br />
neuro<strong>in</strong>flammatory response <strong>in</strong> bra<strong>in</strong> and that the anti-<strong>in</strong>flammatory<br />
activity <strong>of</strong> several estrogenic compounds is reduced <strong>in</strong> parallel with<br />
<strong>in</strong>creas<strong>in</strong>g time <strong>of</strong> hormone deprivation. These results implicate that<br />
hormone replacement therapy might benefit from the anti-<strong>in</strong>flammatory<br />
activity <strong>of</strong> estrogenic compounds <strong>in</strong> bra<strong>in</strong> only when therapy <strong>in</strong>itiates
closer <strong>in</strong> time with the onset <strong>of</strong> menopause.<br />
Titolo progetto MADRI (Menopause: decreased response to <strong>in</strong>creas<strong>in</strong>g <strong>in</strong>flammation) 5<br />
R01 AG027713-02<br />
Ente f<strong>in</strong>anziatore NIH; 200,000 Eu<br />
Durata progetto 2007-2011<br />
Abstract del progetto This project <strong>in</strong>vestigates more directly on the effect <strong>of</strong> menopause and<br />
ag<strong>in</strong>g on the <strong>in</strong>flammatory response <strong>of</strong> the bra<strong>in</strong>. Prelim<strong>in</strong>ary results<br />
show that menopause modifies the susceptibility <strong>of</strong> bra<strong>in</strong> <strong>in</strong>flammatory<br />
cells that is already altered by the ag<strong>in</strong>g process.<br />
Titolo progetto<br />
DIMI (Diagnostic Molecular Imag<strong>in</strong>g ) A Network <strong>of</strong> Excellence for<br />
Identification <strong>of</strong> new imag<strong>in</strong>g markers for diagnostic purpose<br />
Ente f<strong>in</strong>anziatore European Commission; 376,000 Eu<br />
Durata progetto 2006-2010<br />
Abstract del progetto This project is aimed at challeng<strong>in</strong>g imag<strong>in</strong>g techniques for improv<strong>in</strong>g<br />
studies on bra<strong>in</strong> reactivity, <strong>in</strong>clud<strong>in</strong>g <strong>in</strong>flammation. Several reporter and<br />
transgenic animal models were generated under this program; the ma<strong>in</strong><br />
results from this project show that it is now feasible to trace estrogen<br />
transcriptional activity <strong>in</strong> bra<strong>in</strong><br />
Titolo progetto<br />
Role <strong>of</strong> estrogens <strong>in</strong> bra<strong>in</strong> vulnerability to neuro<strong>in</strong>flammatory signals<br />
associated with ag<strong>in</strong>g and neurodegenerative diseases<br />
Ente f<strong>in</strong>anziatore M<strong>in</strong>istero della Salute; 20,000 Eu<br />
Durata progetto 2009<br />
Abstract del progetto Aim <strong>of</strong> the study was to analyse the reactivity <strong>of</strong> macrophage cells from<br />
male and female mice <strong>in</strong> response to pathological signals that arise <strong>in</strong> the<br />
ag<strong>in</strong>g bra<strong>in</strong>.
Nome Dr. Barbara Viviani<br />
Pr<strong>of</strong>. Mar<strong>in</strong>a Mar<strong>in</strong>ovich<br />
Dr. Mariaserena Boraso<br />
Pr<strong>of</strong>. Corrado L. Galli<br />
Contatti Tel: +39 (0)2 50318356<br />
Mail:<br />
barbara.viviani@unimi.it<br />
mariaserena.boraso@unimi.it<br />
mar<strong>in</strong>a.mar<strong>in</strong>ovich@unimi.it<br />
corrado.galli@unimi.it<br />
Istituto/Dipartimento Department <strong>of</strong> Pharmacological Sciences, University <strong>of</strong> Milan<br />
Proposta di ricerca Role <strong>of</strong> pro- and anti-<strong>in</strong>flammatory cytok<strong>in</strong>es <strong>in</strong> the prognosis<br />
and progression <strong>of</strong> neurodegenerative diseases<br />
Area di <strong>in</strong>teresse<br />
identificata<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
MOLECULAR MECHANISMS OF INFLAMMATION AND REPAIR IN STROKE:<br />
NEURORADIOLOGY AND BIOCHEMICAL ENDPOINTS TO DESIGN A NOVEL<br />
THERAPEUTIC AND PROGNOSTIC APPROACH<br />
Regione Lombardia<br />
24 mesi<br />
Stroke rema<strong>in</strong>s a lead<strong>in</strong>g cause <strong>of</strong> adult death and disability, which still demand an<br />
appropriate therapeutical approach. Some degree <strong>of</strong> spontaneous behavioral recovery is<br />
usually seen <strong>in</strong> the weeks after stroke onset. In general, the best outcomes are associated<br />
with the greatest return toward the normal state <strong>of</strong> bra<strong>in</strong> functional organization.<br />
Reorganization <strong>of</strong> surviv<strong>in</strong>g central nervous system elements supports behavioral<br />
recovery. In this framework, the development <strong>of</strong> therapeutic approaches whose goal is to<br />
promote repair and restoration <strong>of</strong> function after stroke could be strategic. Two <strong>of</strong> the<br />
most prom<strong>in</strong>ent molecular events occurr<strong>in</strong>g <strong>in</strong> bra<strong>in</strong> ischemia are <strong>in</strong>flammation and<br />
overactivation <strong>of</strong> the NMDA subtype <strong>of</strong> glutamate receptors (excitotoxicity), which lead to<br />
the progression <strong>of</strong> neuronal damage. Although this, an endogenous neuroprotective<br />
response, at least partially mediated via <strong>in</strong>duction <strong>of</strong> neuroprotective factors, is also<br />
elicited by ischemic <strong>in</strong>jury. Actually, the great potential <strong>of</strong> the bra<strong>in</strong> for reorganization,<br />
plasticity and repair after <strong>in</strong>jury is a critical issue to be taken <strong>in</strong>to consideration, that has<br />
previously been understimated.<br />
Know<strong>in</strong>g the pathophysiological mechanisms that follow ischemia and their time course is<br />
essential <strong>in</strong> order to be able to identify and use biomarkers <strong>in</strong> monitor<strong>in</strong>g the patients<br />
with acute stroke. Although still <strong>in</strong> the <strong>research</strong> phase, some biomarkers have been<br />
shown to correlate with the cl<strong>in</strong>ical evolution and could be important <strong>in</strong> foresee<strong>in</strong>g the<br />
cl<strong>in</strong>ical response to the treatment <strong>of</strong> the acute phase and to the different rehabilitation<br />
strategies <strong>in</strong> the post-acute and chronic phases. In addition, the <strong>in</strong>flammatory and<br />
neuroprotective response dur<strong>in</strong>g the evolution <strong>of</strong> stroke can be monitored <strong>in</strong> the patient<br />
through suitable techniques such as neuroimag<strong>in</strong>g.<br />
Up to now <strong>research</strong> on molecular targets <strong>in</strong> cerebral ischemia for develop<strong>in</strong>g novel<br />
therapeutics has ma<strong>in</strong>ly focused on s<strong>in</strong>gle pathways, be<strong>in</strong>g <strong>in</strong>flammation or excitotoxicity<br />
or oxidative stress. The step forward, to go beyond the current state <strong>of</strong> the art, <strong>of</strong> the<br />
present project is to try to consider a group <strong>of</strong> different concurrent factors elicited dur<strong>in</strong>g<br />
stroke. The project aims at <strong>in</strong>vestigat<strong>in</strong>g the cross-talk between <strong>in</strong>flammation,<br />
excitotoxicity, and endogenous neuroprotective/neuroregenerative pathways. In<br />
collaboration with the Neurological Institute C. Mond<strong>in</strong>o, levels <strong>of</strong> selected biomarkers<br />
representative <strong>of</strong> <strong>in</strong>flammation and neuroprotection will be monitored <strong>in</strong> the serum <strong>of</strong><br />
patients with stroke at different time po<strong>in</strong>ts and then will be correlated with<br />
neuroimag<strong>in</strong>g data and the cl<strong>in</strong>ical outcome. This will
provide a cl<strong>in</strong>ical basis to f<strong>in</strong>alize the basic <strong>research</strong> focussed on the<br />
evaluation <strong>of</strong> the molecular mechanisms recruited <strong>in</strong> the cross-talk<br />
between <strong>in</strong>flammation, excitotoxicity, and endogenous<br />
neuroprotective/neuroregenerative pathways. To this purpose we will<br />
evaluate <strong>in</strong> glial and neuronal population (i) the impact <strong>of</strong> <strong>in</strong>flammation<br />
on expression <strong>of</strong> neuroprotective factors relevant to bra<strong>in</strong> ischemia (i)<br />
the effect <strong>of</strong> neuroprotective factors on <strong>in</strong>flammation, (ii) the effect <strong>of</strong><br />
cytok<strong>in</strong>es and neuroprotective factors on excitotoxicity driven by the<br />
NMDAR<br />
The project is designed to identfy new prognostic markers and new<br />
targets for therapy, aimed at boost<strong>in</strong>g or super<strong>in</strong>duc<strong>in</strong>g the endogenous<br />
neuroprotective response directly or <strong>in</strong>terfer<strong>in</strong>g with the mechanisms<br />
that blunt this response <strong>in</strong> conditions <strong>of</strong> <strong>in</strong>jury.
Nome ANGELINI - ACRAF SpA<br />
Contatti<br />
Tel.<br />
E mail<br />
Claudio Milanese<br />
06-91045290<br />
c.milanese@angel<strong>in</strong>i.it<br />
Istituto/Dipartimento Angel<strong>in</strong>i Research Center- S.Palomba (Rome), Italy<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse identificata Study <strong>of</strong> the role <strong>of</strong> pro-<strong>in</strong>flammatory chemok<strong>in</strong>es <strong>in</strong><br />
neuro<strong>in</strong>flammatory disorders and analysis <strong>of</strong> the therapeutic potential<br />
<strong>of</strong> chemok<strong>in</strong>e synthesis <strong>in</strong>hibitors<br />
Abstract<br />
Chemok<strong>in</strong>es and their receptors play a crucial role <strong>in</strong> the traffick<strong>in</strong>g<br />
<strong>of</strong> leukocytes and other immune system cells and are <strong>of</strong> particular<br />
<strong>in</strong>terest <strong>in</strong> the context <strong>of</strong> the unique immune responses elicited <strong>in</strong><br />
the central nervous system (CNS). With<strong>in</strong> this particular district,<br />
most data focus on the role <strong>of</strong> CCL2 and the related factors CCL7<br />
and CCL8, s<strong>in</strong>ce they have been implicated <strong>in</strong> a wide range <strong>of</strong><br />
neuropathologies, <strong>in</strong>clud<strong>in</strong>g trauma, ischemic <strong>in</strong>jury and multiple<br />
sclerosis (Semple BD et al., 2010, J Cerebral Flow & Metabolism<br />
30:459). Furthermore, members <strong>of</strong> this chemok<strong>in</strong>e family and their<br />
receptors recently emerged as key modulators <strong>in</strong> nociceptive <strong>in</strong>flux<br />
transmission <strong>in</strong> neuropathic and <strong>in</strong>flammatory chronic pa<strong>in</strong> models<br />
(Gossel<strong>in</strong> RD et al., 2008, Curr Med Chem 15:2866), provid<strong>in</strong>g<br />
evidence <strong>of</strong> the <strong>in</strong>volvement <strong>of</strong> chemok<strong>in</strong>es as important mediators<br />
<strong>of</strong> the <strong>in</strong>itiation and ma<strong>in</strong>tenance <strong>of</strong> pa<strong>in</strong> hypersensitivity.<br />
Angel<strong>in</strong>i has a large experience <strong>in</strong> the study <strong>of</strong> chemok<strong>in</strong>e synthesis<br />
<strong>in</strong>hibitors.<br />
A small orig<strong>in</strong>al Angel<strong>in</strong>i molecule able to <strong>in</strong>hibit the synthesis <strong>of</strong><br />
CCL2, b<strong>in</strong>darit, has recently successfully concluded a phase II cl<strong>in</strong>ical<br />
study <strong>in</strong> diabetic nephropathy and it is currently undergo<strong>in</strong>g<br />
another phase II study <strong>in</strong> restenosis. The aim <strong>of</strong> the present project<br />
is the identification and development <strong>of</strong> new molecules able to<br />
<strong>in</strong>hibit the synthesis <strong>of</strong> chemok<strong>in</strong>es and endowed with physicochemical<br />
and ADME characteristics useful to target CNS disorders.<br />
The evaluation <strong>of</strong> the pharmacological activity <strong>of</strong> such compounds<br />
<strong>in</strong> appropriate models will allow to assess their potential as<br />
therapeutic agents useful for the treatment <strong>of</strong> CNS disorders and<br />
chronic pa<strong>in</strong>.<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto
ISTITUTO SUPERIORE DI SANITA’ (Referente, Luisa M<strong>in</strong>ghetti)<br />
The Istituto Superiore di Sanità is the lead<strong>in</strong>g technical and scientific body <strong>of</strong> the <strong>Italian</strong> National Health<br />
Service. Its activities <strong>in</strong>clude <strong>research</strong>, cl<strong>in</strong>ical trials, control and tra<strong>in</strong><strong>in</strong>g <strong>in</strong> public health. The Institute<br />
conducts scientific <strong>research</strong> <strong>in</strong> a wide variety <strong>of</strong> fields and also serves as a major source <strong>of</strong> <strong>in</strong>formation<br />
relat<strong>in</strong>g to public health and biomedic<strong>in</strong>e <strong>in</strong> Italy through onl<strong>in</strong>e connections to national and <strong>in</strong>ternational<br />
scientific databases and data banks.<br />
The <strong>in</strong>stitute has been actively <strong>in</strong>volved <strong>in</strong> <strong>research</strong> <strong>in</strong> age<strong>in</strong>g and related neurodegenerative diseases over<br />
the last decade. It is partner <strong>in</strong> the European Research Area <strong>in</strong> Age<strong>in</strong>g network (ERA-AGE and ERA-AGE2)<br />
funded under the Sixth and the Seventh Framework Programme.<br />
The <strong>research</strong> on Alzheimer’s disease <strong>in</strong> ISS takes advantage <strong>of</strong> multidiscipl<strong>in</strong>ary expertise and resources<br />
<strong>in</strong>clud<strong>in</strong>g proteomics, molecular and cellular biology, neuroimmunology, behavioral analysis, <strong>in</strong> vitro and <strong>in</strong><br />
vivo models, genetic, cl<strong>in</strong>ical and epidemiological studies, advanced statistical analysis, data and bio-banks.<br />
Ma<strong>in</strong> topics <strong>of</strong> <strong>research</strong> are: <strong>in</strong> vitro toxicity <strong>of</strong> amyloid prote<strong>in</strong>s; excitotoxicity and free radical-related<br />
alterations <strong>of</strong> signal<strong>in</strong>g pathways and post-translational modifications <strong>of</strong> post-synaptic mach<strong>in</strong>ery; analysis<br />
<strong>of</strong> prote<strong>in</strong> aggregate characteristics responsible for the <strong>in</strong>duction <strong>of</strong> amyloid formation; characterization <strong>of</strong><br />
relevant rodent models by pre-cl<strong>in</strong>ical imag<strong>in</strong>g with MRI scann<strong>in</strong>g; characterization <strong>of</strong> behavioral and<br />
cognitive alterations <strong>in</strong> relation to neurochemical/neuroanatomical markers <strong>in</strong> AD mur<strong>in</strong>e models; effects<br />
<strong>of</strong> diet, pharmacological agents, or neurotoxicants on disease susceptibility and progression <strong>in</strong> AD mur<strong>in</strong>e<br />
models; early environmental factors <strong>in</strong> modulat<strong>in</strong>g onset and progression <strong>of</strong> neurodegenerative diseases;<br />
self antigens and autoantibodies <strong>in</strong> the pathogenesis <strong>of</strong> AD and as biomarkers <strong>of</strong> the disease; peripheral<br />
oxidative stress and antioxidant defense related biomarkers as prognostic and diagnostic tools;<br />
identification <strong>of</strong> mutations and polymorphisms affect<strong>in</strong>g cl<strong>in</strong>ical phenotype and progression; descriptive,<br />
analytical, cl<strong>in</strong>ical epidemiological studies; longitud<strong>in</strong>al data bases for cohorts <strong>of</strong> elderly persons with<br />
cognitive deficits (IPREA and ILSA).<br />
Research projects currently active <strong>in</strong>clude:<br />
• Role <strong>of</strong> Genetic Determ<strong>in</strong>ants on the Progression <strong>of</strong> Cl<strong>in</strong>ical Phenotype from MCI to Alzheimer’s Disease.<br />
PI: A.Confaloni (National coord<strong>in</strong>ator F.Tagliav<strong>in</strong>i), <strong>Italian</strong> M<strong>in</strong>istry <strong>of</strong> Health .Eur 60,000<br />
• Determ<strong>in</strong>anti genetici e fattori modulatori nelle malattie neurodegenerative: modelli cl<strong>in</strong>ici ed animali -<br />
P.I. A. Confaloni (National coord<strong>in</strong>ator A. Bruni), <strong>Italian</strong> M<strong>in</strong>istry <strong>of</strong> Health, Eur 70,000<br />
• Risk Assessment <strong>of</strong> iatrogenic transmission <strong>of</strong> neuro-AMYloidoses (RAAMY). PI: M.Pocchiari (<strong>in</strong><br />
collaboration with E.Comoy, CEA, France), Alliance BioSecure, Fondation de recherche reconnue d’utilité<br />
publique.<br />
• Early diagnosis <strong>of</strong> Alzheimer’s diseases through the comb<strong>in</strong>ation and correlation <strong>of</strong> molecular, functional<br />
and cl<strong>in</strong>ical biomarkers PI: M.Pocchiari, <strong>Italian</strong> M<strong>in</strong>istry <strong>of</strong> Health. Eur. 364,000<br />
• Innovative approaches to the study <strong>of</strong> <strong>in</strong>duction/repair <strong>of</strong> DNA oxidative damage <strong>in</strong> models <strong>of</strong><br />
neurodegenerative diseases: molecular basis and identification <strong>of</strong> possible therapeutic targets. PI:<br />
P.Popoli, <strong>Italian</strong> M<strong>in</strong>istry <strong>of</strong> Health. Eur 364,000<br />
• Effects Of Dog-Assisted Therapies On Physical And Psychological Well Be<strong>in</strong>g In The Institutionalized<br />
Elderly. PI: F.Cirulli, ISS and Nando Peretti Foundation, Eur 100,000<br />
• Therapeutic effects <strong>of</strong> human-animal <strong>in</strong>teractions <strong>in</strong> a rural environment on neuropsychiatric diseases<br />
and bra<strong>in</strong> ag<strong>in</strong>g. PI: F.Cirulli, INEA Eur 62,000<br />
• Nuovi farmaci ad azione neurotr<strong>of</strong>ica e neuroprotettiva per applicazioni terapeutiche nelle neuroscienze:<br />
malattia di Azheimer, malattia di Hunt<strong>in</strong>gton e Sclerosi Laterale Amiotr<strong>of</strong>ica. PI: D. Merlo, (National<br />
coord<strong>in</strong>ator A. Cattaneo). MIUR – FIRB “Idee Progettuali RBIP063ANC” 2007, Eur 32,000
• Ruolo neuroprotettivo della Timos<strong>in</strong>a beta4 <strong>in</strong> modelli sperimentali <strong>in</strong> vitro di eccitotossicità, ischemia e<br />
Alzheimer Disease”. PI: D. Merlo, Tecnogen Spa, Eur 125,000<br />
• Role <strong>of</strong> recurrent herpetic <strong>in</strong>fections <strong>in</strong> neuronal damage. PI D. Merlo (National coord<strong>in</strong>ator<br />
A.T.Palamara), M<strong>in</strong>istero della Salute, Eur 70,000<br />
• An <strong>in</strong>tegrated approach to identify functional, biochemical and genetic markers for diagnostic and<br />
prognostic purposes <strong>in</strong> the elderly, <strong>in</strong> the centenarians and <strong>in</strong> people with dementia, Alzheimer’s disease,<br />
mild cognitive impairment. PI: N.Vanacore, <strong>Italian</strong> M<strong>in</strong>istry <strong>of</strong> Health, Eur 291,000<br />
• Alzheimer's Disease (AD) and antipsychotics: a long term, multicentre, double bl<strong>in</strong>d, randomised cl<strong>in</strong>ical<br />
trial. PI: R.Raschetti, <strong>Italian</strong> Agency <strong>of</strong> Drug, Eur 1,950,000.<br />
• EC 7th Framework Programme “ERA AGE 2 Project – European Reasearch Area <strong>in</strong> Age<strong>in</strong>g Extension” .<br />
E. Scafato.<br />
EC 7th Framework Programme “ FUTURAGE Project – A Roadmap for Age<strong>in</strong>g Research” . E. Scafato<br />
• EC 2nd Programme <strong>of</strong> Community Action <strong>in</strong> the Field <strong>of</strong> Health “VINTAGE Project – Good Health <strong>in</strong>to<br />
Older Age”. E. Scafato.<br />
• EC 5th Framework Programme “DESCRIPA Project - Development <strong>of</strong> screen<strong>in</strong>g guidel<strong>in</strong>es and criteria for<br />
predementia Alzheimer’s disease”. E. Scafato.
Nome Paola Bossù<br />
Contatti<br />
Tel.<br />
E mail<br />
Via Ardeat<strong>in</strong>a 306, I-00179, Rome<br />
06-51501520<br />
p.bossu@hsantalucia.it<br />
Istituto/Dipartimento IRCCS Fondazione Santa Lucia/Cl<strong>in</strong>ical and Behavioral Neurology<br />
Proposta di ricerca<br />
Role <strong>of</strong> <strong>in</strong>flammation <strong>in</strong> Alzheimer’s Disease: study <strong>of</strong> pro-<strong>in</strong>flammatory cytok<strong>in</strong>es for the<br />
identification <strong>of</strong> new pathogenic and diagnostic targets<br />
Area di <strong>in</strong>teresse<br />
Inflammation and neurodegeneration<br />
identificata<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
Genetic Risk factors and peripheral biological markers <strong>of</strong> conversion<br />
from Mild Cognitive Impairment to Alzheimer’s Disease<br />
<strong>Italian</strong> M<strong>in</strong>istry <strong>of</strong> Health<br />
01/2009 - 01/2011<br />
Several studies have demonstrated that <strong>in</strong>flammation plays an<br />
important role <strong>in</strong> mediat<strong>in</strong>g glial alterations and neurodegeneration<br />
that occur <strong>in</strong> AD patients. This phenomenon <strong>in</strong>cludes the accumulation<br />
<strong>of</strong> reactive microglia and astrocytes <strong>in</strong> damaged regions <strong>of</strong> AD bra<strong>in</strong><br />
and <strong>in</strong>creased pro-<strong>in</strong>flammatory cytok<strong>in</strong>e expression that may further<br />
contribute to the development and progression <strong>of</strong> pathological state.<br />
Accord<strong>in</strong>gly, <strong>in</strong> several studies pro-<strong>in</strong>flammatory cytok<strong>in</strong>es such as<br />
Interleuk<strong>in</strong> (IL)-1, IL-6, Tumor Necrosis Factor (TNF)-α and IL-18<br />
have been found to be peripherally <strong>in</strong>creased <strong>in</strong> AD patients and<br />
substantially impaired <strong>in</strong> the late stage <strong>of</strong> the disease. However, the<br />
temporal def<strong>in</strong>ition <strong>of</strong> their implication <strong>in</strong> respect to disease<br />
progression, as well the extent to which <strong>in</strong>flammatory factors<br />
participate to the neuronal damage are issues <strong>of</strong> fundamental<br />
importance, which are to date still unclear. Recent studies performed<br />
by this participant unit have identified a possible role for the pro<strong>in</strong>flammatory<br />
cytok<strong>in</strong>e IL-18 <strong>in</strong> AD, by means <strong>of</strong> genetic data<br />
suggest<strong>in</strong>g that IL-18 gene promoter polymorphisms can predict risk<br />
and outcome <strong>of</strong> AD, and by demonstrat<strong>in</strong>g that IL-18 is overexpressed<br />
by blood cells <strong>of</strong> AD patients and correlates with their cognitive<br />
decl<strong>in</strong>e. In the present study, by us<strong>in</strong>g a longitud<strong>in</strong>al cl<strong>in</strong>ical approach,<br />
the previous results regard<strong>in</strong>g IL-18 will be expanded also to other<br />
<strong>in</strong>flammatory mediators with potential role <strong>in</strong> the disease progression<br />
and pathogenesis. In fact, this project is aimed to <strong>in</strong>vestigate the<br />
impact <strong>of</strong> pro-<strong>in</strong>flammatory and anti-<strong>in</strong>flammatory parameters dur<strong>in</strong>g<br />
disease progression <strong>in</strong> patients at the higher risk <strong>of</strong> develop<strong>in</strong>g AD, i.e.<br />
MCI patients. These objectives are relevant for the identification <strong>of</strong><br />
new diagnostic markers <strong>of</strong> the AD precl<strong>in</strong>ical form and for the<br />
comprehension <strong>of</strong> <strong>in</strong>flammatory mechanisms, likely participat<strong>in</strong>g <strong>in</strong><br />
the earliest pathogenic processes <strong>of</strong> AD.
1. MECHANISMS OF NEURODEGENERATION<br />
D. Oxidative Stress and neurodegeneration
Nome Elisa Greggio, Marco Bisaglia, Luigi Bubacco<br />
Contatti<br />
Via Ugo Bassi 58/b, 35129 Padova, ITALY<br />
Tel. +39 049 8276244<br />
Istituto/Dipartimento Dipartimento di Biologia, Università di Padova<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse identificata Indag<strong>in</strong>e dei meccanismi molecolari alla base della malattia di Park<strong>in</strong>son<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Mitochondrial dysfunction and axonal transport <strong>in</strong> genetic models <strong>of</strong><br />
Park<strong>in</strong>son’s disease<br />
Ente f<strong>in</strong>anziatore MIUR<br />
Durata progetto 4 years<br />
Abstract del progetto Mitochondrial dysfunction and oxidative stress have been implicated<br />
<strong>in</strong> the pathogenesis <strong>of</strong> Park<strong>in</strong>son’s disease (PD). Defective axonal<br />
transport, <strong>in</strong>clud<strong>in</strong>g abnormal accumulation <strong>of</strong> misfolded prote<strong>in</strong>s and<br />
organelles and damage <strong>of</strong> transport <strong>of</strong> cargoes through axons, is also<br />
observed <strong>in</strong> many neurodegenerative diseases. Few l<strong>in</strong>es <strong>of</strong> evidences<br />
suggest that both alpha-synucle<strong>in</strong> and LRRK2, prote<strong>in</strong>s <strong>in</strong>volved <strong>in</strong><br />
dom<strong>in</strong>antly transmitted forms <strong>of</strong> familial PD, may play a role <strong>in</strong><br />
mitochondrial function, microtubulo stability/dynamics and axonal<br />
transport. The aim <strong>of</strong> this project is to use cellular and, <strong>in</strong> part, animal<br />
models <strong>of</strong> !-synucle<strong>in</strong> and LRRK2 to explore the<br />
physiological and pathological role <strong>of</strong> this two genes <strong>in</strong> mitochondrial<br />
functionality and <strong>in</strong> the transport <strong>of</strong> mitochondria and synaptic vesicle<br />
along the axons.<br />
Titolo progetto<br />
Biochemical characterization <strong>of</strong> full length human recomb<strong>in</strong>ant LRRK1<br />
and LRRK2<br />
Ente f<strong>in</strong>anziatore Michael J Fox Foundation<br />
Durata progetto 1+1 years<br />
Abstract del progetto Mutations <strong>in</strong> one gene, LRRK2, are a common cause <strong>of</strong> Park<strong>in</strong>son’s<br />
disease. However, the prote<strong>in</strong> product <strong>of</strong> this gene is large and complex<br />
and, to date, no one has been able to make highly pure, functional LRRK2<br />
that can be easily used for biochemical experiments. The primary<br />
objective <strong>of</strong> this project is to make purified prote<strong>in</strong> by comb<strong>in</strong><strong>in</strong>g<br />
expertise <strong>in</strong> multiple technologies from each <strong>of</strong> our collaborat<strong>in</strong>g<br />
laboratories and to share our methods with other <strong>research</strong>ers. If<br />
successful, our secondary objective is then to perform an exhaustive<br />
search for other prote<strong>in</strong>s that may <strong>in</strong>teract with LRRK2.<br />
Titolo progetto<br />
Molecular mechanisms that <strong>in</strong>volve the oxidation product <strong>of</strong> dopam<strong>in</strong>e<br />
<strong>in</strong> the pathogenesis <strong>of</strong> Park<strong>in</strong>son disease.<br />
Ente f<strong>in</strong>anziatore Pr<strong>in</strong>- MIUR<br />
Durata progetto 1+1 years<br />
Abstract del progetto<br />
Several hypotheses have been proposed <strong>in</strong> the literature to describe<br />
the mechanisms that lead to neurodegeneration <strong>in</strong> PD. This project will<br />
focus on the ossidative stress associated to the redox chemistry <strong>of</strong><br />
dopam<strong>in</strong>e. The rational <strong>in</strong> this choice is that dopam<strong>in</strong>e oxidation may<br />
reasonably account for the specificity observed for dopam<strong>in</strong>ergic neuron
degeneration <strong>in</strong> PD. Although the oxidation <strong>of</strong> DA and DOPA lead to the<br />
formation <strong>of</strong> toxic ROS, the ma<strong>in</strong> cytotoxic species which could potentially<br />
expla<strong>in</strong> the specific damage to dopam<strong>in</strong>ergic neurons rema<strong>in</strong> the highly<br />
reactive qu<strong>in</strong>one species (DAQ) that have many potential prote<strong>in</strong> targets<br />
for chemical modifications. The identification <strong>of</strong> several prote<strong>in</strong>s, whose<br />
functions are affected by the mutations associated to familiar PD,<br />
triggered the hypothesis that late onset idiopathic forms <strong>of</strong> PD may<br />
derive from similar functional effects <strong>in</strong>duced by chemical modifications<br />
produced by DAQ. This project will be focus on the def<strong>in</strong>ition <strong>of</strong> the<br />
damages <strong>in</strong>duced by DAQ on two cytoplasmatic (DJ-1 and α-Synucle<strong>in</strong>)<br />
and two mitochondrial (PINKI and Superoxide Dismutase 2) possible<br />
prote<strong>in</strong> targets.
Nome Antonella Bobba<br />
Contatti Tel: 080 5442412 Fax: 0805443317 E-mail: a.bobba@ibbe.cnr.it<br />
Istituto/Dipartimento Istituto di Biomembrane e Bioenergetica (IBBE), CNR<br />
Via Amendola 165/A 70126 Bari, Italy<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse<br />
identificata<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
MITOCHONDRIA, APOPTOSIS AND NEURODEGENERATION: CHARACTERIZATION OF<br />
MITOCHONDRIAL DYSFUNCTION IN NEURODEGENERATIVE DISEASES<br />
There is compell<strong>in</strong>g evidence for the direct <strong>in</strong>volvement <strong>of</strong> mitochondria <strong>in</strong><br />
neurodegenerative disorders. In most cases, <strong>in</strong>creased oxidative stress appears to<br />
be the crucial <strong>in</strong>itiat<strong>in</strong>g event that affects respiratory cha<strong>in</strong> function and starts a<br />
vicious cycle f<strong>in</strong>ally lead<strong>in</strong>g to neuronal cell death via apoptosis or necrosis. In<br />
addition a functional <strong>in</strong>teraction exists <strong>in</strong> the cells between cytoplasm and<br />
mitochondria and the cross-talk ability <strong>of</strong> these cellular components is <strong>in</strong>volved <strong>in</strong><br />
cell homeostasis and death. In the light <strong>of</strong> this, the goal <strong>of</strong> this topic is to ascerta<strong>in</strong><br />
whether and how, dur<strong>in</strong>g neurodegeneration, the energy metabolism <strong>in</strong> the<br />
cytoplasm changes as a result <strong>of</strong> mitochondrial alterations and vice-versa and the<br />
mechanism by which certa<strong>in</strong> compounds can prevent cell death.<br />
CHARACTERIZATION OF THE MOLECULAR MECHANISMS UNDERLYING AGING, CELL SENESCENCE<br />
AND NEURODEGENERATIVE DISEASES<br />
Aberrant modulation <strong>of</strong> cell signal<strong>in</strong>g pathways <strong>in</strong>volved <strong>in</strong> cell death regulation<br />
underlies several human pathological conditions, such as neurodegeneration.<br />
Although the mechanistic aspects <strong>of</strong> cell death and growth have been extensively<br />
<strong>in</strong>vestigated, there is still lack <strong>of</strong> knowledge about the early events that lead to<br />
deregulation <strong>of</strong> cell homeostasis and about the mechanisms <strong>of</strong> cell sensitization to<br />
growth and death signals <strong>in</strong> response to changes <strong>in</strong> cell environment. Thus, it is<br />
worthwhile to characterize the progression <strong>of</strong> the biochemical events and <strong>in</strong><br />
particular <strong>of</strong> those occurr<strong>in</strong>g <strong>in</strong> the early phase <strong>of</strong> neurodegeneration with the aim<br />
to identify the critical steps that once blocked could allow for the restore, even if<br />
partial, <strong>of</strong> the impaired cellular function/activity. The characterization <strong>of</strong> the ma<strong>in</strong><br />
signall<strong>in</strong>g pathways that are activated and/or impaired dur<strong>in</strong>g neurodegeneration<br />
and the close def<strong>in</strong>ition <strong>of</strong> the cause-effect relationship between them are powerful<br />
tools which are potentially usable to design new diagnostic, prognostic and<br />
therapeutic approaches. To this aim it is <strong>of</strong> great relevance an approach <strong>in</strong> which<br />
functional genomics and whole-genome expression pr<strong>of</strong>il<strong>in</strong>g are comb<strong>in</strong>ed <strong>in</strong> order<br />
to efficiently identify key players <strong>in</strong> biological response pathways. This is possible if<br />
different cellular systems are complementarily used <strong>in</strong> the experimental approach.<br />
Neurotr<strong>of</strong><strong>in</strong>e e meccanismi relativi a malattie neurodegenerative.<br />
UO3 - Stress ossidativo e bioenergetica mitocondriale nella patogenesi delle<br />
malattie neurodegenerative<br />
Ente f<strong>in</strong>anziatore MIUR (Progetto CNR/MIUR - Fondo FISR)<br />
Durata progetto 2 years (11/06/2003 – 1/10/2005)<br />
Abstract del progetto Studies on the <strong>in</strong>volvement <strong>of</strong> mitochondria and role <strong>of</strong> oxidative stress <strong>in</strong> the<br />
ethiopathogenesis <strong>of</strong> neurodegenerative diseases by us<strong>in</strong>g primary neuronal cell<br />
cultures as <strong>in</strong> vitro model. The ma<strong>in</strong> results can be summarized as follow: i) early<br />
impairment <strong>of</strong> the energetic metabolism; ii) released cytochrome c exerts a crucial<br />
role by act<strong>in</strong>g both as a ROS scavenger and an electron donor other than a caspase<br />
activator; iii) ATP level <strong>in</strong>creases <strong>in</strong> the early phase <strong>of</strong> the death process and iv) ROS<br />
and thereafter activated caspases <strong>in</strong>duce the progressive impairment <strong>of</strong> the
mitochondrial ANT.<br />
Titolo progetto<br />
Malattie neurodegenerative come conseguenza di un alterato processamento di<br />
prote<strong>in</strong>e neuronali, modelli animali e di colture cellulari <strong>in</strong> vitro<br />
Ente f<strong>in</strong>anziatore MIUR (Progetto FIRB cod. RBNE01ZK8F)<br />
Durata progetto 3 years (08/01/2003 – 10/01/2007)<br />
Abstract del progetto Both animal and <strong>in</strong> vitro cultured cellular models have been used to study the<br />
molecular mechanisms which are at the basis <strong>of</strong> some neurodegenerative diseases<br />
and to identify new, potential therapeutical tools. Studies have been ma<strong>in</strong>ly focused<br />
on a thorough analysis <strong>of</strong> the mitochondrial function impairment with collapse <strong>of</strong><br />
oxidative phosphorylation and <strong>in</strong>creased production <strong>of</strong> reactive oxygen species.<br />
Titolo progetto<br />
Bioenergetic and apoptotic systems <strong>of</strong> mitochondria. Genomics, proteomics, cellular<br />
homeostasis and physiopathology.<br />
WP2- Mitochondria role <strong>in</strong> animal, plant and microorganism cell apoptosis<br />
Ente f<strong>in</strong>anziatore MIUR (Progetto MIUR N. 157)<br />
Durata progetto 3 years (2006-2009)<br />
Abstract del progetto The aims <strong>of</strong> the <strong>research</strong> project are concern<strong>in</strong>g with: a)The role <strong>of</strong> mitochondria <strong>in</strong><br />
the progression <strong>of</strong> neuronal apoptosis; b)The role <strong>of</strong> mitochondria <strong>in</strong> the apoptosis<br />
<strong>of</strong> a plant model system; c)The role <strong>of</strong> mitochondria <strong>in</strong> yeast apoptosis; d)The role <strong>of</strong><br />
mitochondria <strong>in</strong> the <strong>in</strong>duction/resistance to apoptosis <strong>in</strong> neoplastic cells<br />
Titolo progetto Molecular bases <strong>in</strong> age<strong>in</strong>g-related degenerative syndromes<br />
Ente f<strong>in</strong>anziatore MIUR - Progetto MERIT - Protocollo: RBNE08HWLZ<br />
(UR n 11: Protocollo: RBNE08HWLZ_012)<br />
Durata progetto 3 years (approved but not yet funded)<br />
Abstract del progetto The aim <strong>of</strong> this project is to discover specific molecular pathways and/or targets for<br />
the develop<strong>in</strong>g <strong>of</strong> new therapeutic strategies. Research activities are grouped <strong>in</strong>to<br />
four workpackages: 1) Aggregation states and cytotoxic activity: molecular and <strong>in</strong><br />
vivo/<strong>in</strong> vitro biological studies. 2) Oxidative stress and age<strong>in</strong>g: biochemical<br />
processes and regulation <strong>of</strong> gene expression. 3) Dismetabolic factors and<br />
neurodegeneration: molecular, biophysical and biochemical studies. 4)Exogenous<br />
and endogenous molecules aga<strong>in</strong>st age<strong>in</strong>g and neurodegeneration: application for<br />
the diagnosis and therapy.<br />
Titolo progetto<br />
Biotechnology applied to the study and utilization <strong>of</strong> Apulian extra-virg<strong>in</strong> olive oil<br />
and its m<strong>in</strong>or components <strong>in</strong> ag<strong>in</strong>g and <strong>in</strong> diseases associated to oxidative stress<br />
Ente f<strong>in</strong>anziatore Regione Puglia (Progetto Reti di Laboratorio Pubblici di Ricerca)<br />
Durata progetto 3 years (approved but not yet funded)<br />
Abstract del progetto Constitution <strong>of</strong> a Laboratories Network aimed to identify the nature and efficacy <strong>of</strong><br />
m<strong>in</strong>or components <strong>of</strong> Apulian extra virg<strong>in</strong> olive oil <strong>in</strong> the prevention <strong>of</strong> oxidative<br />
stress-associated pathologies
Nome Lenaz Giorgio and Giancarlo Sola<strong>in</strong>i<br />
Contatti<br />
051-2091229; 333-2383218; fax: 051-2091217<br />
giorgio.lenaz@unibo.it<br />
051-2091215 ; 339 1948613 ; fax 051-2091224<br />
giancarlo.sola<strong>in</strong>i@unibo.it<br />
Istituto/Dipartimento Dipartimento di Biochimica<br />
Proposta di ricerca<br />
The <strong>in</strong>volvement <strong>of</strong> mitochondria <strong>in</strong> neurodegenerative diseases, <strong>in</strong>clud<strong>in</strong>g Alzheimer disease (AD) is<br />
widely documented, although no clear causal relationships are available for a great number <strong>of</strong><br />
scattered observations. Both a decrease <strong>of</strong> mitochondrial respiration, <strong>in</strong> particular <strong>of</strong> cytochrome<br />
oxidase and an enhanced production <strong>of</strong> Reactive Oxygen Species (ROS) has been reported <strong>in</strong> autoptic<br />
samples <strong>of</strong> AD patients and <strong>in</strong> neuronal cells <strong>of</strong> animal models <strong>of</strong> AD. Most <strong>research</strong>ers <strong>in</strong> the field<br />
believe these f<strong>in</strong>d<strong>in</strong>gs be<strong>in</strong>g the consequence <strong>of</strong> toxic amyloid peptides (A-beta) <strong>in</strong>teract<strong>in</strong>g with<br />
mitochondrial structures, and several studies have recently shown that A-beta and tau prote<strong>in</strong>s,<br />
characteristic <strong>of</strong> AD, <strong>in</strong>teract with mitochondrial respiratory complexes, open<strong>in</strong>g novel h<strong>in</strong>ts to<br />
understand the pathogenesis <strong>of</strong> the disease. A significant <strong>in</strong>vestigation on the above issue has been<br />
carried out by some <strong>of</strong> us, but it’s noteworthy that our <strong>research</strong> group has a world wide reputation<br />
on the study <strong>of</strong> mitochondrial structure and function and has already been <strong>in</strong>volved <strong>in</strong> <strong>research</strong> on<br />
ag<strong>in</strong>g and neurodegenerative diseases <strong>in</strong>clud<strong>in</strong>g AD. In particular we have shown the functional<br />
consequences <strong>of</strong> the recently discovered super-association <strong>of</strong> respiratory complexes and<br />
demonstrated that these super-complexes are easily dissociated by a number <strong>of</strong> changes <strong>in</strong> prote<strong>in</strong>prote<strong>in</strong><br />
and lipid-prote<strong>in</strong> <strong>in</strong>teractions. We <strong>in</strong>tend to propose and test the follow<strong>in</strong>g work<strong>in</strong>g<br />
hypothesis. Under conditions likely present <strong>in</strong> bra<strong>in</strong> regions <strong>of</strong> AD patients, the <strong>in</strong>teraction <strong>of</strong> A-beta<br />
and tau with mitochondria at the level <strong>of</strong> respiratory cha<strong>in</strong> is able to disrupt super-complex<br />
associations with consequent destabilization <strong>of</strong> the <strong>in</strong>dividual complexes, <strong>in</strong> particular Complex I<br />
(NADH Coenzyme Q reductase). This would necessarily determ<strong>in</strong>e an enhancement <strong>of</strong> production <strong>of</strong><br />
ROS, thus expla<strong>in</strong><strong>in</strong>g the observed oxidative stress <strong>in</strong> AD mitochondria. Loss <strong>of</strong> efficient electron<br />
transfer and altered assembly <strong>of</strong> Complex I would determ<strong>in</strong>e decreased oxidative phosphorylation<br />
and at the same time the oxidative stress could represent a sufficient stimulus for trigger<strong>in</strong>g cell<br />
death by necrosis or apoptosis. Our laboratory has the expertise and technology for all <strong>in</strong>vestigations<br />
required to test this hypothesis, and we are currently sett<strong>in</strong>g conditions considered likely to occur <strong>in</strong><br />
bra<strong>in</strong> regions <strong>of</strong> AD patients. The study will be performed on animal model systems and <strong>in</strong> human<br />
cells cultures. On the other hand, a better understand<strong>in</strong>g <strong>of</strong> AD pathogenesis might establish the<br />
basis for attempts <strong>of</strong> therapeutic <strong>in</strong>terventions, <strong>in</strong>clud<strong>in</strong>g metabolic therapy as recently shown <strong>in</strong> our<br />
laboratory for diseases featur<strong>in</strong>g alterations <strong>of</strong> ATP synthesis.<br />
Area di <strong>in</strong>teresse identificata Basic <strong>research</strong>/new treatment strategies<br />
F<strong>in</strong>anziamenti ricevuti
Titolo progetto<br />
Ente f<strong>in</strong>anziatore MIUR (PRIN 2008)<br />
Durata progetto 2 years<br />
Abstract del progetto<br />
Ruolo dell’organizzazione sopramolecolare della fosforilazione<br />
ossidativa mitocondriale nella produzione di specie reattive<br />
dell’ossigeno e <strong>in</strong> alterazioni patologiche <strong>in</strong> sistemi modello e <strong>in</strong><br />
cellule umane.<br />
In this project we will test the work<strong>in</strong>g hypothesis that an <strong>in</strong>itial<br />
enhanced ROS generation due to different possible reasons and<br />
orig<strong>in</strong>at<strong>in</strong>g <strong>in</strong> different districts <strong>of</strong> the cell besides mitochondria<br />
would <strong>in</strong>duce disorganization <strong>of</strong> the supercomplex assemblies <strong>of</strong> the<br />
oxidative phosphorylation system, eventually lead<strong>in</strong>g to <strong>in</strong>stability<br />
<strong>of</strong> Complex I quaternary structure; both the lack <strong>of</strong> efficient electron<br />
channell<strong>in</strong>g and the decrease <strong>of</strong> Complex I would cause a fall <strong>of</strong><br />
NAD-l<strong>in</strong>ked respiration and ATP synthesis, lead<strong>in</strong>g to pathological<br />
changes. This hypothesis will then be tested <strong>in</strong> two pathologies <strong>in</strong><br />
which a major pathogenic factor is oxidative stress, i.e. the NARP<br />
syndrome (neuropathy with ataxia and ret<strong>in</strong>itis pigmentosa) due to<br />
mitochondrial DNA mutations <strong>in</strong> the ATP6 gene, and diabetic<br />
peripheral neuropathy, a common and severe complication <strong>of</strong><br />
diabetes mellitus. (Details follow)
Nome Annalisa Santucci<br />
Contatti<br />
Tel. +390577234958<br />
Fax +390577234903<br />
Email santucci@unisi.it<br />
Istituto/Dipartimento Department <strong>of</strong> Molecular Biology, University <strong>of</strong> Siena, ITALY<br />
Proposta di ricerca<br />
Amyloid β peptide (Aβ) is directly <strong>in</strong>volved <strong>in</strong> the pathogenesis <strong>of</strong> Alzheimer Disease (AD) or tightly<br />
correlated with other primary pathogenic factors. The predom<strong>in</strong>ant forms <strong>of</strong> Aβ <strong>in</strong> the human bra<strong>in</strong> are<br />
Aβ(1-40) and Aβ(1-42), but Aβ(25-35) fragment, physiologically present <strong>in</strong> elderly people [1], is the more<br />
toxic region and has been recently found to play a relevant role <strong>in</strong> AD, due to its peculiar aggregation<br />
properties. In fact, actually, the ability to affect cognitive processes is typical not only <strong>of</strong> the full-length<br />
peptide, but also <strong>of</strong> several Aβ fragments, <strong>in</strong> particular just the undecapeptide Aβ(25-35). This peptide is<br />
regarded as the functional doma<strong>in</strong> <strong>of</strong> Aβ, responsible for its neurotoxic properties and represents the<br />
actual biologically active region <strong>of</strong> Aβ. In vivo, Aβ(25-35) is present <strong>in</strong> neurons <strong>of</strong> subiculum and entorh<strong>in</strong>al<br />
cortex <strong>of</strong> AD bra<strong>in</strong>s, and it was also observed <strong>in</strong> Inclusion-Body Myositis (IBM) muscle. Self-assembly <strong>of</strong><br />
Aβ(25-35) is a key player <strong>in</strong> AD, s<strong>in</strong>ce it could nucleate the assembly <strong>of</strong> Aβ monomers and a bent <strong>in</strong> this<br />
region could be the rate-limit<strong>in</strong>g step <strong>in</strong> Aβ fibril formation. In virtue <strong>of</strong> this, there is <strong>in</strong>creased <strong>in</strong>terest <strong>in</strong><br />
the role <strong>of</strong> Aβ(25-35) fragment <strong>in</strong> free radical-associated neurotoxicity <strong>in</strong> AD bra<strong>in</strong>. Age-dependent<br />
racemisation <strong>of</strong> Ser residue at the 26th position <strong>in</strong> Aβ(1-40) is critical <strong>in</strong> AD pathogenesis. In vivo<br />
conversion <strong>of</strong> non-toxic [DSer26] Aβ(1-40) to toxic [D-Ser26]Aβ(25-35) has been f<strong>in</strong>ally demonstrated and<br />
the presence <strong>of</strong> truncated and toxic [DSer26] Aβ(25-35) <strong>in</strong> AD bra<strong>in</strong>s, but not <strong>in</strong> age-matched control<br />
bra<strong>in</strong>s, adds a major value to <strong>in</strong> vivo neurodegeneration mechanism. Given the suggested centrality <strong>of</strong><br />
Aβ(25-35) to the pathogenesis <strong>of</strong> AD, this peptide should deserve major attention also as a therapeutic<br />
target. In fact, diagnosis and monitor<strong>in</strong>g <strong>of</strong> sporadic AD have long depended on cl<strong>in</strong>ical exam<strong>in</strong>ation <strong>of</strong><br />
<strong>in</strong>dividuals with end-stage disease. However, upcom<strong>in</strong>g anti-AD therapies are optimally <strong>in</strong>itiated when<br />
<strong>in</strong>dividuals show very mild signs <strong>of</strong> neurodegeneration. Our <strong>research</strong> group provided for the first time an<br />
exhaustive overview about Aβ(25-35) [2] and dur<strong>in</strong>g the last few years it has deepened the aggregation<br />
properties <strong>of</strong> this peptide accord<strong>in</strong>g to solution and environmental conditions [3]. Actually, we are<br />
dedicat<strong>in</strong>g attention to this peculiar peptide <strong>in</strong> the light <strong>of</strong> its great oxidative stress generation capacity<br />
and extreme toxicity <strong>in</strong> neuronal cells and synaptosomes. The evidence po<strong>in</strong>ts toward Aβ(25-35) be<strong>in</strong>g<br />
primarily responsible for neurodegeneration observed <strong>in</strong> AD. The question rema<strong>in</strong>s on how this can <strong>in</strong>duce<br />
such degenerative effects. Strong <strong>of</strong> our experience <strong>in</strong> the field <strong>of</strong> the study <strong>of</strong> oxidative stress [4-9], we<br />
propose ourselves to estimate the mechanisms been <strong>in</strong>volved <strong>in</strong> the ROS generation Aβ(25-35)-mediated<br />
<strong>in</strong> different cell models. We can use SELDI technology to study [DSer26] Aβ(25-35) as a core biomarker for<br />
the mild cognitive impairment stage <strong>of</strong> AD. From a longer perspective, establishment <strong>of</strong> the most effective<br />
comb<strong>in</strong>ations <strong>of</strong> different biomarkers and other diagnostic modalities may be foreseen. Moreover, due to<br />
our well established experience <strong>in</strong> Proteomics [10-15], we will apply proteomics techniques to study cellspecific<br />
early markers <strong>of</strong> bra<strong>in</strong> ag<strong>in</strong>g-related degeneration <strong>in</strong> human astrocytes and neurons that may<br />
contribute to neurodegenerative damage. The prote<strong>in</strong> expression patterns <strong>of</strong> the AD neuron and astrocyte<br />
cultures will be compared with those obta<strong>in</strong>ed from healthy people. Differentially expressed spots will be<br />
identified by matrix-assisted laser desorption/ionization-time <strong>of</strong> flight peptide map f<strong>in</strong>gerpr<strong>in</strong>t<strong>in</strong>g and<br />
database search. A number <strong>of</strong> the prote<strong>in</strong> alterations have been previously reported <strong>in</strong> the bra<strong>in</strong> tissue<br />
proteome <strong>of</strong> animal models, aged bra<strong>in</strong> or AD bra<strong>in</strong>, but are still quite unexplored <strong>in</strong> neuron and astrocyte<br />
proteome and our project could help to clarify if both cell types are <strong>in</strong>volved <strong>in</strong> the bra<strong>in</strong> degenerative<br />
changes as well as to study neuronal changes hav<strong>in</strong>g a greater <strong>in</strong>fluence <strong>in</strong> the pathology progress. These<br />
f<strong>in</strong>d<strong>in</strong>gs will be discussed <strong>in</strong> reference to the effect <strong>of</strong> specific prote<strong>in</strong> oxidation and changes <strong>of</strong> expression
on potential mechanisms <strong>of</strong> abnormal alterations <strong>in</strong> metabolism and neurochemicals, as well as to the<br />
learn<strong>in</strong>g and memory deficits <strong>in</strong> AD.<br />
References<br />
[1] Kubo, T.; et al. A possible mechanism <strong>of</strong> neurodegeneration <strong>in</strong> AD - Involvement <strong>of</strong> racemized βamyloid.<br />
Soc. Neurosci., 1999, Abstr. 25, p. 838.<br />
[2] Millucci L, et al. Conformations and biological activities <strong>of</strong> Amyloid Beta Peptide 25-35. Curr Prote<strong>in</strong><br />
Pept Sci. 2009 Sep 15.<br />
[3] Millucci, L., et al. Rapid aggregation and assembly <strong>in</strong> aqueous solution <strong>of</strong> Aβ(25-35) peptide. J. Biosci.<br />
2009, 34(2), 293-303.<br />
[4] Braconi D, et al. Proteomics and redox-proteomics <strong>of</strong> the effects <strong>of</strong> herbicides on a wild-type w<strong>in</strong>e<br />
Saccharomyces cerevisiae stra<strong>in</strong>. J Proteome Res. 2009;8(1):256-67.<br />
[5] Braconi D, Possenti S, Laschi M, Gem<strong>in</strong>iani M, Lus<strong>in</strong>i P, Bernard<strong>in</strong>i G, Santucci A. Oxidative damage<br />
mediated by herbicides on yeast cells. J Agric Food Chem. 2008 May 28;56(10):3836-45.<br />
[6] Braconi D, et al. Comparative analysis <strong>of</strong> the effects <strong>of</strong> locally used herbicides and their active<br />
<strong>in</strong>gredients on a wild-type w<strong>in</strong>e Saccharomyces cerevisiae stra<strong>in</strong>. J Agric Food Chem. 2006 19;54(8):3163-<br />
72<br />
[7] Desideri G, et al. Effects <strong>of</strong> bezafibrate and simvastat<strong>in</strong> on endothelial activation and lipid peroxidation<br />
<strong>in</strong> hypercholesterolemia: evidence <strong>of</strong> different vascular protection by different lipid-lower<strong>in</strong>g treatments. J<br />
Cl<strong>in</strong> Endocr<strong>in</strong>ol Metab. 2003;88(11):5341-7.<br />
[8] Desideri G, et al. Angiotens<strong>in</strong> II <strong>in</strong>hibits endothelial cell motility through an AT1-dependent oxidantsensitive<br />
decrement <strong>of</strong> nitric oxide availability. Arterioscler Thromb Vasc Biol. 2003;23(7):1218-23.<br />
[9] Trabalz<strong>in</strong>i L, et al. Proteomic response to physiological fermentation stresses <strong>in</strong> a wild-type w<strong>in</strong>e stra<strong>in</strong><br />
<strong>of</strong> Saccharomyces cerevisiae. Biochem J. 2003;370(Pt 1):35-46.<br />
[10] Bernard<strong>in</strong>i G, et al. Postgenomics <strong>of</strong> Neisseria men<strong>in</strong>gitidis for vacc<strong>in</strong>es development. Expert Rev<br />
Proteomics. 2007;4:667-77.<br />
[11] Bernard<strong>in</strong>i G, et al. The analysis <strong>of</strong> Neisseria men<strong>in</strong>gitidis proteomes: Reference maps and their<br />
applications. Proteomics. 2007;7(16):2933-46.<br />
[12] Spreafico A, et al. A proteomic study on human osteoblastic cells proliferation and differentiation.<br />
Proteomics. 2006;6(12):3520-32.<br />
[13] M<strong>in</strong>i R, et al. Comparative proteomics and immunoproteomics <strong>of</strong> Helicobacter pylori related to<br />
different gastric pathologies. J Chromatogr B Analyt Technol Biomed Life Sci. 2006;833(1):63-79.<br />
[14] Bernard<strong>in</strong>i G, et al. Proteome analysis <strong>of</strong> Neisseria men<strong>in</strong>gitidis serogroup A. Proteomics.<br />
2004;4(10):2893-926.<br />
[15] Magnani A, et al. Two-step elution <strong>of</strong> human serum prote<strong>in</strong>s from different glass-modified bioactive<br />
surfaces: a comparative proteomic analysis <strong>of</strong> adsorption patterns. Electrophoresis. 2004;25(14):2413-24.<br />
Area di <strong>in</strong>teresse identificata Post-Genomic Biochemistry <strong>of</strong> <strong>Neurodegenerative</strong> Diseases<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto Characterization <strong>of</strong> peptide oligomers <strong>in</strong> Alzheimer Disease<br />
Ente f<strong>in</strong>anziatore Siena Biotech s.p.a.<br />
Durata progetto 1/07/2006 - 30-04-2009<br />
Abstract del progetto Aβ(25-35) is the shortest peptide sequence that reta<strong>in</strong>s biological activity<br />
<strong>of</strong> full-length Aβ(1-42) and exhibits large β-sheet aggregated structures.<br />
Because <strong>of</strong> these features, it has <strong>of</strong>ten been chosen as a model for fulllength<br />
Aβ <strong>in</strong> structural and functional studies but k<strong>in</strong>etic and structural<br />
studies <strong>of</strong> this peptide are <strong>in</strong>deed strongly hampered by its tendency to<br />
quickly assemble <strong>in</strong>to <strong>in</strong>soluble aggregates. The aim <strong>of</strong> the project was to<br />
study the uncommon rapidity with which Aβ(25-35) self-assembles at<br />
different pH. The obta<strong>in</strong>ed results support the hypothesis that the early<br />
Aβ(25-35) aggregated forms, that develop at pH 3, may not enhance the<br />
growth <strong>of</strong> dangerous fibrils generated at pH 7.4. We conclude that the
mechanism by which Aβ forms toxic fibrils is <strong>in</strong>itiated <strong>in</strong> vivo and probably<br />
does not <strong>in</strong>volve low pH compartments, confirm<strong>in</strong>g the hypothesis <strong>of</strong> Kubo<br />
et al. (2002) on the orig<strong>in</strong> and toxicity <strong>of</strong> Aβ(25-35).
1. MECHANISMS OF NEURODEGENERATION<br />
E. Trophic factors <strong>in</strong>volvement <strong>in</strong> the<br />
neurodegeneration process
1. MECHANISMS OF NEURODEGENERATION<br />
F. Endocr<strong>in</strong>e and Metabolic Factors
Country: Italy<br />
Contact person: Paola Fragapane, Cecilia Mannironi (CNR)<br />
Date: 28/01/2010<br />
I) Strategic Issues<br />
Stress is a term to describe experiences that are challeng<strong>in</strong>g both emotionally and physiologically.<br />
A feature <strong>of</strong> the stress response is the activation <strong>of</strong> the autonomic nervous system and<br />
hypotalamus-pituitary-adrenal (HPA) axis with the production <strong>of</strong> glucocorticoids hormones. This<br />
response is needed to survive dangerous situation but excessive adrenocortical and autonomic<br />
function is deleterious for health and survival. The central nervous system <strong>in</strong> response to such<br />
activation elaborates the appropriate behavioral and physiological responses. As regards to the<br />
neuroanatomical substrate the hypothalamus and the bra<strong>in</strong> stem are essential <strong>in</strong> the response to<br />
stressors, however, other bra<strong>in</strong> regions are also well known targets <strong>of</strong> stress hormones. Among<br />
such regions, <strong>research</strong> has focused its attention on the prefrontal cortex, the hippocampus and the<br />
amygdala. Interest<strong>in</strong>gly these bra<strong>in</strong> structures have been related also to functions such as<br />
memory, and decision mak<strong>in</strong>g but also to anxiety and other psychiatric diseases.<br />
Acute (s<strong>in</strong>gle stress) and chronic (repeated) stress <strong>in</strong>duce prom<strong>in</strong>ent changes <strong>in</strong> neuronal activity<br />
and synaptic functions. These changes are thought to be due to neuronal remodell<strong>in</strong>g such as<br />
dendrites shorten<strong>in</strong>g and debranch<strong>in</strong>g (Mc Ewen, 2007) <strong>in</strong> the hippocampus and <strong>in</strong> the medial<br />
prefrontal cortex. These stress-<strong>in</strong>duced changes are mediated by modification <strong>of</strong> gene expression<br />
at transcriptional levels. However, recent studies are po<strong>in</strong>t<strong>in</strong>g out the contribution <strong>of</strong><br />
posttranscriptional regulation to stress associated responses (De Rijk et al., 2003). An important<br />
post-transcriptional mechanism <strong>of</strong> gene regulation <strong>in</strong>volves microRNA (miR). A range <strong>of</strong> evidence<br />
suggests that these small RNAs form complex networks <strong>in</strong>volved <strong>in</strong> the regulation <strong>of</strong> differentiation<br />
and development, via regulation <strong>of</strong> chromat<strong>in</strong> modification, transcription, translation and RNA<br />
stability. They are small RNA molecules (about 22 nucleotide long) that <strong>in</strong>hibit mRNA translation or<br />
<strong>in</strong>duce mRNA degradation by sequence specific pair<strong>in</strong>g with mRNA 3' untranslated regions<br />
(UTRs). In the vertebrate nervous system miR have been shown to play a role dur<strong>in</strong>g development<br />
and neurogenesis (Kosik, 2009; Lagos-Qu<strong>in</strong>tana et al., 2001). MiR are also abundantly expressed<br />
<strong>in</strong> the adult bra<strong>in</strong> and appear to regulate the ma<strong>in</strong>tenance <strong>of</strong> mature trait and synaptic plasticity<br />
(Mehler and Mattick, 2006). MiR134 was reported to be a regulator <strong>of</strong> dendritic sp<strong>in</strong>e development<br />
<strong>in</strong> bra<strong>in</strong> (Schratt et al., 2006). Perturbation <strong>in</strong> miR are associated with a number <strong>of</strong> neuronal<br />
diseases as X-l<strong>in</strong>ked mental retardation, Park<strong>in</strong>son’s disease and schizophrenia.<br />
II) Priority areas<br />
The molecular mechanism underly<strong>in</strong>g bra<strong>in</strong> response to stress are still <strong>in</strong>completely understood.<br />
The aim <strong>of</strong> this project is to identify region-specific stress-<strong>in</strong>duced changes <strong>in</strong> miR expression. The<br />
expression pr<strong>of</strong>iles <strong>of</strong> miRs <strong>in</strong> bra<strong>in</strong> regions known to be <strong>in</strong>volved <strong>in</strong> stress response such as the<br />
hippocampus, the amygdala and the prefrontal cortex will be analyzed after the exposure to<br />
aversive stimuli. The analysis will be performed <strong>in</strong> rodents exposed to s<strong>in</strong>gle or repeated restra<strong>in</strong>t
stress and gene expression <strong>in</strong> each bra<strong>in</strong> regions will be compared with that <strong>of</strong> matched control<br />
mice. LNA (locked nucleic acid) microarrays will generate a limited set <strong>of</strong> candidate miRNAs, which<br />
will be validated by Northern blots and qPCR. In order to have a better neuroanatomical def<strong>in</strong>ition<br />
<strong>of</strong> miR expression selected miR will be analyzed by <strong>in</strong> situ hybridization. mRNA targets it will be<br />
predicted through the use <strong>of</strong> freely available algorithms and will be validated by reporter construct<br />
expression <strong>in</strong> cell system. Moreover bio<strong>in</strong>formatic analysis <strong>of</strong> miR upstream promoter sequences<br />
will allow us to identify transcription factors <strong>in</strong>volved <strong>in</strong> their modulation <strong>in</strong> response to stress<br />
stimuli.<br />
III) Impact<br />
The hippocampus, the amygdala and the prefrontal cortex are <strong>in</strong>terconnected and <strong>in</strong>fluence each<br />
others via direct and <strong>in</strong>direct neuronal activity. It is well established their <strong>in</strong>volvement <strong>in</strong> the stress<br />
response and <strong>in</strong> the plastic changes occurr<strong>in</strong>g <strong>in</strong> response to acute and repeated stress exposure.<br />
Our analysis <strong>of</strong> miR expression pattern will allow us to understand possible region specific<br />
expression pattern and/or common molecular networks.<br />
Translation <strong>of</strong> the <strong>in</strong>formation on stress effects from animal models to the human organism is an<br />
important challenge. Indeed maladaptive response to stress is considered causal to many<br />
psychiatric diseases such as major depression, anxiety as well as schizophrenia. The<br />
understand<strong>in</strong>g <strong>of</strong> the contribution <strong>of</strong> non cod<strong>in</strong>g RNAs might allow on the one hand a better<br />
understand<strong>in</strong>g <strong>of</strong> the neural mechanisms at the basis <strong>of</strong> stress response on the other hand might<br />
help identify possible targets for the development <strong>of</strong> new future therapies.
Nome Roberto Rimond<strong>in</strong>i-Giorg<strong>in</strong>i<br />
Contatti roberto.rimond<strong>in</strong>i@unibo.it<br />
Istituto/Dipartimento Department <strong>of</strong> Pharmacology<br />
Proposta di ricerca<br />
Via Irnerio 48<br />
40126 Bologna<br />
Italy<br />
Area di <strong>in</strong>teresse identificata Develop<strong>in</strong>g competitive animal models / basic <strong>research</strong><br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
MECHANISMS BEHIND THE ASSOCIATION OF APOE4 GENOTYPE<br />
AND LIFE STYLE RELATED FACTORS IN ALZHEIMER`S DISEASE<br />
Ente f<strong>in</strong>anziatore Fondazione Cassa di Risparmio di Bologna<br />
Durata progetto 2 anni<br />
Abstract del progetto<br />
Alzheimer`s disease (AD) is a devastat<strong>in</strong>g neurodegenerative disease<br />
and the most common cause <strong>of</strong> dementia. The current estimate<br />
number <strong>of</strong> people with dementia <strong>in</strong> the world stands at 24.3 million,<br />
with an estimated 4.6 million new cases every year <strong>in</strong> the world.<br />
There are no def<strong>in</strong>itive diagnostic tests, biological markers <strong>of</strong> AD or<br />
pharmaceutical treatments. At central nervous system (CNS) level,<br />
the pathological signs <strong>in</strong>clude deposits <strong>of</strong> extracellular amyloid-β<br />
peptide (Aβ) <strong>in</strong> plaques. Loss <strong>of</strong> neurons and synapses is also<br />
widespread. Whilst some cases have a genetic component (familiar<br />
AD) the majority <strong>of</strong> cases (90-95%) have unknown cause and are<br />
named sporadic AD. Familiar AD seems to be correlated to<br />
mutations <strong>in</strong> key genes such as <strong>in</strong> the amyloid-precursor-prote<strong>in</strong><br />
(APP) gene and <strong>in</strong> the presenil<strong>in</strong> genes (1 and 2). On the contrary,<br />
sporadic AD seems to be consequence <strong>of</strong> a complex <strong>in</strong>teraction<br />
between both genetic and environmental risk factors. The major<br />
genetic risk factor is an allelic variant <strong>of</strong> apolipoprote<strong>in</strong> E (apoE)<br />
called apoE4. Nowadays, no specific environmental risk factor has<br />
been def<strong>in</strong>itively identified as be<strong>in</strong>g associated with AD. Anyway, AD<br />
is associated with a history <strong>of</strong> depressive illness, traumatic head<br />
<strong>in</strong>jury, cardiovascular disease, smok<strong>in</strong>g and stroke. In addition,<br />
several evidences highlight the correlation between high alcohol<br />
consumption, saturated fats and cholesterol <strong>in</strong>take. The<br />
apolipopote<strong>in</strong>s are cholesterol transporters <strong>of</strong> high importance for<br />
neuronal plasticity, CNS glucose utilization and mitochondrial
functions. The apoE is<strong>of</strong>orms (2, 3 and 4) differ <strong>in</strong> their abilities to<br />
accomplish these critical tasks. Approximately 20% <strong>of</strong> the<br />
population carries one or two apoE4 alleles. ApoE4’s <strong>in</strong>volvement <strong>in</strong><br />
neuropathology is well documented factor for AD <strong>in</strong> many<br />
populations. In some, 40–80% <strong>of</strong> patients with AD possess at least<br />
one apoE4 allele. While ApoE3 and apoE2 are effective <strong>in</strong><br />
ma<strong>in</strong>ta<strong>in</strong><strong>in</strong>g bra<strong>in</strong> homeostasis, apoE4 seems to have an opposite<br />
rule. Impaired cognition <strong>in</strong> non-dement <strong>in</strong>dividuals carry<strong>in</strong>g the<br />
apoE4 allele worsens with age, suggest<strong>in</strong>g a global detrimental<br />
effect on the CNS. Although apoE4 is strongly l<strong>in</strong>ked to AD<br />
pathology, its mode <strong>of</strong> action is unknown. Insights <strong>in</strong>to the role <strong>of</strong><br />
apoE <strong>in</strong> neuropathology have come from studies <strong>of</strong> transgenic mice<br />
express<strong>in</strong>g human apoE3 or apoE4 <strong>in</strong> neurons or astrocytes.<br />
Features <strong>of</strong> AD pathology <strong>in</strong> these animals <strong>in</strong>clude reduced numbers<br />
<strong>of</strong> presynaptic term<strong>in</strong>als <strong>in</strong> mice express<strong>in</strong>g apoE4 with or without<br />
expression <strong>of</strong> human amyloid precursor prote<strong>in</strong> (APP), <strong>in</strong>creased<br />
plaque deposition <strong>in</strong> apoE4 mice express<strong>in</strong>g APP, <strong>in</strong>creased<br />
phosphorylation <strong>of</strong> tau, impaired learn<strong>in</strong>g and memory, and altered<br />
long-term potentiation. No studies are available on the correlation<br />
between life style and apoE4 genotype <strong>in</strong> AD <strong>in</strong>cidence. Aim <strong>of</strong> this<br />
project is to study the impact <strong>of</strong> different life conditions <strong>in</strong> relation<br />
to the apoE genotype on neurodegeneration. Wild and transgenic<br />
mice express<strong>in</strong>g human apoE3 or apoE4 are exposed to different<br />
diet conditions such as a normal diet, high saturated fats and<br />
cholesterol <strong>in</strong>take. After 6 months <strong>of</strong> diet mice will be tested to<br />
evaluate cognition and memory impairments. In the same subjects,<br />
gene expression (cDNA microarrays) will be studies <strong>in</strong> discrete bra<strong>in</strong><br />
areas. RT-PCR assay will be used to confirm the results. Moreover,<br />
selected genes will be further analyzed with classical biochemical<br />
procedures. In addition, other AD prote<strong>in</strong>s such as Aβ, APP and Tau,<br />
and several markers for apoptosis, necrosis and neurodegeneration,<br />
will be <strong>in</strong>vestigated with biochemical methods <strong>in</strong> order to determ<strong>in</strong>e<br />
their quantity, their activity and their distribution <strong>in</strong> the bra<strong>in</strong>. The<br />
comb<strong>in</strong>ation <strong>of</strong> high throughput methods with the classical<br />
biochemical assays will allow a deep understand<strong>in</strong>g <strong>of</strong> the molecular<br />
mechanisms beh<strong>in</strong>d the studied risk factors <strong>in</strong>volvement <strong>in</strong><br />
neuropatology <strong>in</strong> relation with apoE genotype. The obta<strong>in</strong>ed results<br />
will provide important <strong>in</strong>formation to def<strong>in</strong>e life guidel<strong>in</strong>es for<br />
people carry<strong>in</strong>g the apoE4 allele, as prevention for AD and<br />
neurodegenerative disorders. This could be <strong>of</strong> relevance <strong>in</strong> public<br />
health strategies. Furthermore, results could help to identify new<br />
therapeutic targets and early diagnostic markers. Moreover, this<br />
new experimental approach will develop a new animal model for AD<br />
that has a more natural onset <strong>of</strong> the pathology.
Nome<br />
Rosa Maria Corbo<br />
Contatti Rosamaria.corbo@uniroma1.it<br />
Istituto/Dipartimento Dip. Genetica e Biologia Molecolare, Università La Sapienza, Roma<br />
Proposta di ricerca<br />
Sporadic Alzheimer’s disease (AD) is a complex neurodegenerative disease caused by<br />
the <strong>in</strong>teraction <strong>of</strong> genetic and nongenetic factors. The e * 4 allele <strong>of</strong> the apolipoprote<strong>in</strong> E gene<br />
(APOE) is the only well-established genetic susceptibility factor for sporadic AD, though<br />
numerous risk alleles <strong>in</strong> other genes are also thought to be <strong>in</strong>volved <strong>in</strong> AD development.<br />
Gender is a relevant AD risk determ<strong>in</strong>ant and there is evidence for a higher prevalence <strong>of</strong> AD<br />
<strong>in</strong> women. However, whether this is due to the longer life expectancy <strong>of</strong> women or to<br />
biological gender- specific risk factors for the disease is unclear. It has been hypothesized that<br />
a decl<strong>in</strong><strong>in</strong>g estrogen level follow<strong>in</strong>g menopause and subsequent reduction <strong>in</strong> its<br />
neuroprotective action may contribute to the development <strong>of</strong> the disease <strong>in</strong> women. In l<strong>in</strong>e<br />
with this hypothesis, the possible role <strong>of</strong> estrogen nuclear receptor genes (ESR1 and ESR2) as<br />
AD risk factors has been largely <strong>in</strong>vestigated. In addition there is evidence that past fertility is<br />
associated with a higher AD risk and a reduced AAO <strong>of</strong> the disease, probably because <strong>of</strong> the<br />
lifelong decrease <strong>in</strong> estrogen levels that parity seems to produce <strong>in</strong> women.<br />
The aim <strong>of</strong> the present <strong>in</strong>vestigation is to extend previous <strong>in</strong>vestigations (1-3) and <strong>in</strong><br />
particular 1) to collect data on the reproductive life <strong>of</strong> AD women to identify those<br />
parameters which could <strong>in</strong>fluence the risk <strong>of</strong> AD and/or AD onset age; 2) To study the genetic<br />
variability <strong>of</strong> genes <strong>in</strong>volved <strong>in</strong> estrogen metabolism or women fertility.<br />
- Corbo RM, Gamb<strong>in</strong>a G, Ruggeri M, Scacchi R. Association <strong>of</strong> estrogen receptor α (ESR1)<br />
PvuII and XbaI polymorphisms with sporadic Alzheimer’s disease and their effect on<br />
apolipoprote<strong>in</strong> E concentrations. Dement Geriatr Cogn Disord, 22:67-72, 2006-<br />
- Comb<strong>in</strong>ed effect <strong>of</strong> Apolipoprote<strong>in</strong> E (APOE) genotype and past fertility on age at onset <strong>of</strong><br />
Alzheimer’s disease <strong>in</strong> women. Dement Geriatr Cogn Disord, 24: 82-85, 2007<br />
- Genetic variation <strong>of</strong> CYP19 (aromatase) gene <strong>in</strong>fluences age at onset <strong>of</strong> Alzheimer’s<br />
disease <strong>in</strong> women. Dement Geriatr Cogn Disord. 2009, 27, 513-518.<br />
Area di <strong>in</strong>teresse identificata<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Genetic susceptibility to Alzheimer’s disease<br />
Alzheimer’s disease <strong>in</strong> women: AD as a gender disease<br />
A. Basic <strong>research</strong><br />
Investigation on common and rare variation <strong>of</strong> genes <strong>in</strong>volved <strong>in</strong> sporadic<br />
Alzheimer’s Disease susceptibility<br />
Ente f<strong>in</strong>anziatore Università di Roma La Sapienza<br />
Durata progetto 5 years<br />
Abstract del progetto<br />
At present the genetic component <strong>of</strong> the sporadic<br />
late-onset form <strong>of</strong> Alzheimer disease (LOAD) has been only<br />
partially elucidated, s<strong>in</strong>ce only the apolipoprote<strong>in</strong> E (APOE)<br />
gene, specifically the e*4 allele, has been reportedly<br />
associated with the disease. S<strong>in</strong>ce the APOE polymorphism<br />
alone does not entirely expla<strong>in</strong> the genetic predisposition to
sporadic AD, <strong>in</strong>vestigation <strong>in</strong>to whether any variation <strong>in</strong><br />
further candidate genes could account for the rema<strong>in</strong><strong>in</strong>g part<br />
may <strong>of</strong>fer important clues. However, <strong>in</strong>vestigations on AD<br />
candidate genes have usually exam<strong>in</strong>ed only common<br />
polymorphisms <strong>in</strong> accordance with the hypothesis “common<br />
disease /common variants” . The additional hypothesis<br />
suggest<strong>in</strong>g the presence <strong>of</strong> a relevant genetic heterogeneity<br />
due to rare alleles (“common disease/rare variants” ) has<br />
been scarcely <strong>in</strong>vestigated . The aim <strong>of</strong> the present study<br />
was 1) to exam<strong>in</strong>e the common variation <strong>of</strong> numerous<br />
candidate genes (ACT, PSEN1, LDL-R, APOC1, alfa2M, PON1,<br />
LPL, AChE, BChE, Chat, CYP19); 2) to carry out a mutation<br />
screen<strong>in</strong>g <strong>in</strong> the exons <strong>of</strong> APOE, PSEN1, APP genes by means<br />
<strong>of</strong> DHPLC (denatur<strong>in</strong>g high performance liquid<br />
chromatography). (product: 12 publication, see pubmed)
Nome Pr<strong>of</strong>. LUCIA MIGLIORE<br />
Contatti<br />
Istituto/Dipartimento University <strong>of</strong> Pisa<br />
Department <strong>of</strong> Human and Environmental Sciences<br />
Via S. Giuseppe, 22<br />
56026 PISA Italy<br />
E-mail: l.migliore@geog.unipi<br />
Fax: +39 050 2211034<br />
Tel: +39 050 2211029-28<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse identificata<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
- Genetic susceptibility to Alzheimer’s disease<br />
(Epigenetic marks <strong>of</strong> susceptibility to Alzheimer disease)<br />
Abstract<br />
AD is characterized by high Hcy and low folate blood levels. Many <strong>of</strong> the<br />
genes participat<strong>in</strong>g <strong>in</strong> folate metabolism are polymorphic, mean<strong>in</strong>g that<br />
this pathway can be altered by low dietary folate <strong>in</strong>take, by the<br />
polymorphic variants and/or by comb<strong>in</strong>ations <strong>of</strong> both. In vitro studies<br />
showed that <strong>in</strong> conditions <strong>of</strong> altered folate metabolism the status <strong>of</strong><br />
methylation <strong>of</strong> the promoter <strong>of</strong> the PSEN1 gene underwent a variation,<br />
caus<strong>in</strong>g a deregulation <strong>of</strong> presenil<strong>in</strong> 1, BACE and APP prote<strong>in</strong>s.<br />
The study is designed to evaluate the contribution <strong>of</strong> folate metabolism<br />
(<strong>in</strong>clud<strong>in</strong>g polymorphisms <strong>of</strong> metabolic genes and plasma levels <strong>of</strong> folate,<br />
homocyste<strong>in</strong>e (Hcy) and VitB12) <strong>in</strong> both early (MCI) and late stages <strong>of</strong><br />
dementia, and its possible contribution to the methylation status <strong>of</strong> the<br />
promoter <strong>of</strong> genes that participate <strong>in</strong> Aβ process<strong>in</strong>g. The study will be<br />
performed <strong>in</strong> blood samples with the goal <strong>of</strong> identify<strong>in</strong>g easily detectable<br />
epigenetic biomarkers <strong>of</strong> disease susceptibility.<br />
A PILOT STUDY ON THE EFFECTS OF FPP ON THE COGNITIVE FUNCTION<br />
AND ON OXIDATIVE STRESS PERIPHERAL BIOMARKERS IN<br />
MILDCOGNITIVE IMPAIRMENT PATIENTS (MCI)<br />
OSATO Research Institute, Gifu, Japan<br />
Durata progetto Project ongo<strong>in</strong>g<br />
Abstract del progetto<br />
30+30 amnesic MCI patients divided <strong>in</strong>to two ma<strong>in</strong> groups. One treated<br />
with fermented papaya preparation (FPP), the other without treatment
(placebo: PLC).<br />
The study will be performed with<strong>in</strong> 12 months for a total treatment time<br />
<strong>of</strong> six months. After six and twelve months a report will analyze the<br />
results. At the beg<strong>in</strong>n<strong>in</strong>g <strong>of</strong> the pilot study all the subjects recruited will<br />
be screened for the Total Antioxidant Status (TAS) that will <strong>in</strong>clude the<br />
determ<strong>in</strong>ation <strong>of</strong> the follow<strong>in</strong>g values <strong>in</strong> blood: selenium, folic acid,<br />
vitam<strong>in</strong> B12, C, E together with the evaluation <strong>of</strong> the GSH/GSSG ratio. The<br />
groups will be analyzed for assess<strong>in</strong>g primary and oxidative DNA damage<br />
levels (Comet assay) and chromosome damage also due to oxidative<br />
damage (Cyt-B micronucleus assay) <strong>in</strong> peripheral blood leukocytes.<br />
Moreover 8OH-dG levels <strong>in</strong> ur<strong>in</strong>es samples will be evaluated.<br />
We plan also to evaluate the follow<strong>in</strong>g biochemical parameters <strong>of</strong><br />
oxidative stress: advanced oxidation prote<strong>in</strong> products (AOPP);<br />
glutathione; hydroxynonenal; lipoperoxide (basal and under stress<br />
conditions); lactate (basal and under stress conditions); mitochondrial<br />
metabolite (by Mass Spectroscopy).<br />
The decrease (if any) <strong>of</strong> oxidative stress biomarkers due to the FPP<br />
subm<strong>in</strong>istration will be evaluated by compar<strong>in</strong>g after12 months the two<br />
MCI groups (FPP treated and placebo controls) data by means <strong>of</strong><br />
statistical analyses. At the same time the cognitive impairment evolution<br />
will be monitored by means <strong>of</strong> the neuropsychological evaluations also<br />
with<strong>in</strong> the treatment period (0, 6 and 12 months). Moreover for all the<br />
subjects <strong>in</strong>volved, DNA extraction will be performed and the samples will<br />
be stored for further genotype analysis (e.g.: ApoE, ..).
Nome LAURA COLOMBAIONI<br />
Contatti laura.colombaioni@<strong>in</strong>.cnr.it><br />
Istituto/Dipartimento Istituto di Neuroscienze CNR, Pisa<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse<br />
identificata<br />
F<strong>in</strong>anziamenti ricevuti<br />
Role <strong>of</strong> altered lipid and cholesterol metabolism <strong>in</strong> neurodegenerations<br />
Titolo progetto Cellular mechanisms <strong>of</strong> neuronal dysfunction due to altered lipid metabolism.<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
Associazione <strong>Italian</strong>a Niemann-Pick<br />
3 years<br />
Deregulated lipid metabolism is <strong>of</strong> particular importance <strong>in</strong> pathogenesis <strong>of</strong> CNS disorders<br />
and <strong>in</strong>juries. For this reason the role <strong>of</strong> cholesterol and lipid metabolism as susceptibility<br />
factors <strong>in</strong> neurodegenerations needs to be further <strong>in</strong>vestigated. Cholesterol is an<br />
important regulator <strong>of</strong> lipid organization <strong>in</strong> neuronal membranes and is the precursor for<br />
neurosteroid biosynthesis. Low levels <strong>of</strong> neurosteroids are related to poor outcome <strong>in</strong><br />
many bra<strong>in</strong> pathologies. The deregulation <strong>of</strong> the pr<strong>in</strong>cipal cholesterol carrier prote<strong>in</strong> <strong>in</strong><br />
the bra<strong>in</strong>, the Apolipoprote<strong>in</strong> E, is a significant risk factor for Alzheimer's disease.<br />
Similarly, Park<strong>in</strong>son's disease is, <strong>in</strong> some degree, caused by an enhancement <strong>of</strong> lipid<br />
peroxidation. Also Niemann-Pick A-B diseases are caused by sph<strong>in</strong>gomyel<strong>in</strong> accumulation,<br />
while Niemann-Pick disease C is due to mutations <strong>in</strong> either the NPC1 or NPC2 genes,<br />
result<strong>in</strong>g <strong>in</strong> defective cholesterol and sph<strong>in</strong>golipid transport. Sph<strong>in</strong>golipid metabolites are<br />
emerg<strong>in</strong>g as members <strong>of</strong> a novel class <strong>of</strong> lipid mediators, act<strong>in</strong>g both as <strong>in</strong>tracellular<br />
second messengers and as ligands <strong>of</strong> cell surface receptors, capable <strong>of</strong> controll<strong>in</strong>g<br />
neuronal proliferation, differentiation and apoptosis.<br />
In my laboratory, the effects, on neuronal cells, <strong>of</strong> an altered lipid<br />
metabolism are exam<strong>in</strong>ed. The goal is to understand how the altered lipid<br />
metabolism produces neuronal <strong>in</strong>jury, what subcellular compartments are<br />
<strong>in</strong>volved and how this occurs. An <strong>in</strong>terdiscipl<strong>in</strong>ary approach is used employ<strong>in</strong>g<br />
cell biology, molecular biology and live cell imag<strong>in</strong>g methods. By us<strong>in</strong>g confocal<br />
microscopy, some key events associated to altered cholesterol traffick<strong>in</strong>g or to<br />
sph<strong>in</strong>golipid unbalance are characterized, such as mitochondrial deregulation,<br />
release <strong>of</strong> pro-apoptotic effectors and alterations <strong>of</strong> calcium homeostasis <strong>in</strong><br />
specific subcellular compartments.<br />
In particular, the effects on neuronal calcium homeostasis <strong>of</strong> some sph<strong>in</strong>golipid<br />
metabolites such as Glucosyl-ceramide Sph<strong>in</strong>gos<strong>in</strong>e and Sph<strong>in</strong>gos<strong>in</strong>e 1-phosphate<br />
are analyzed. Our results <strong>in</strong>dicate that the calcium balance <strong>in</strong> mitochondria and<br />
<strong>in</strong> Endoplasmic Reticulum is regulated by cholesterol and sph<strong>in</strong>golipid<br />
metabolites and that this is critically <strong>in</strong>volved <strong>in</strong> control <strong>of</strong> neuronal physiology.<br />
Understand<strong>in</strong>g the impact <strong>of</strong> lipid metabolism changes <strong>in</strong> neuronal cell functions will<br />
promote novel concepts and will reveal new therapeutic targets for a variety <strong>of</strong> nervous<br />
system disorders.
Nome Roberto Cosimo Melcangi<br />
Contatti<br />
Tel.<br />
E mail<br />
02-50318238<br />
roberto.melcangi@unimi.it<br />
Istituto/Dipartimento DEFIB-Università degli Studi di Milano<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse identificata F. Endocr<strong>in</strong>e and metabolic factors<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Sex-specific therapeutic strategies based on neuroactive steroids for<br />
Alzheimer's disease.<br />
Ente f<strong>in</strong>anziatore partial support by Bayer-Pharma<br />
Durata progetto 2 years<br />
Abstract del progetto The importance <strong>of</strong> sex <strong>in</strong> the <strong>in</strong>cidence <strong>of</strong> Alzheimer's disease (AD) has<br />
been studied. Indeed, epidemiological studies support a higher<br />
prevalence and <strong>in</strong>cidence <strong>of</strong> AD <strong>in</strong> women. Moreover, as observed <strong>in</strong><br />
several experimental models and <strong>in</strong> AD patients, parameters such as<br />
oxidative damage, plaque load, amyloid precursor prote<strong>in</strong>, β-amyloid<br />
production, seizure activity, locomotion, hippocampal<br />
neurodegeneration, astrocyte proliferation, level <strong>of</strong> bra<strong>in</strong>-derived<br />
neurotrophic factor, cognition are differently affected <strong>in</strong> a sex-dimorphic<br />
way. Although sex differences <strong>in</strong> the bra<strong>in</strong> may be <strong>in</strong> part the<br />
consequence <strong>of</strong> the genetic complement <strong>of</strong> the cell, differentiation <strong>of</strong> the<br />
neural tissue is also <strong>in</strong>fluenced by the developmental actions <strong>of</strong> sex<br />
hormones. Both genetic sex and developmental actions <strong>of</strong> sex hormones<br />
contribute to the generation <strong>of</strong> sexually dimorphic neuronal networks <strong>in</strong><br />
the bra<strong>in</strong> and the sp<strong>in</strong>al cord, and both factors may <strong>in</strong>fluence the<br />
outcome <strong>of</strong> pathological <strong>in</strong>sults to the nervous system. Thus, some sex<br />
differences <strong>in</strong> bra<strong>in</strong> pathology may be the consequence <strong>of</strong> the functional<br />
and morphological differences <strong>in</strong> neural structure between the sexes.<br />
However, it is important to remember that CNS is not only a target for<br />
steroid hormones com<strong>in</strong>g from peripheral glands but also <strong>of</strong> those<br />
directly synthesize <strong>in</strong> loco (i.e., neurosteroids). Moreover, steroid<br />
hormones are also actively CNS converted <strong>in</strong>to metabolites that are more<br />
active and <strong>in</strong> some cases utilize a different mechanism <strong>of</strong> action. Both<br />
steroid hormones and neurosteroids may be <strong>in</strong>cluded <strong>in</strong> the neuroactive<br />
steroid family.<br />
Therefore, the assessment <strong>of</strong> the levels <strong>of</strong> neuroactive steroids directly <strong>in</strong><br />
male and female bra<strong>in</strong> areas <strong>of</strong> experimental models <strong>of</strong> AD might be<br />
extremely important. Us<strong>in</strong>g our previous experience <strong>in</strong> other<br />
experimental models <strong>of</strong> neurodegeneration, we <strong>in</strong>tend to evaluate the<br />
levels <strong>of</strong> neuroactive steroids by liquid chromatography tandem mass<br />
spectrometry and to confirm possible changes analyz<strong>in</strong>g by real time PCR<br />
the gene expression <strong>of</strong> molecules and enzymes <strong>in</strong>volved <strong>in</strong> their<br />
synthesis. These observations might be very useful to identify possible<br />
pharmacological target useful to design sex-specific therapeutic<br />
approaches based on neuroactive steroids.
Nome Roberto Maggi<br />
Contatti<br />
Tel.<br />
E mail<br />
02 50318233 – 3293718540<br />
roberto.maggi@unimi.it<br />
Dipartimento Endocr<strong>in</strong>ology, Physiopatology, Applied Biology<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse identificata Selective Alzheimer Diserase Indicator-1 (Selad<strong>in</strong>-1): a l<strong>in</strong>ker between<br />
cholesterol, oxidative stress and Alzheimer’s disease.<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore PRIN – MIUR 2006069900_002<br />
Durata progetto 2 anni<br />
Abstract del progetto<br />
Alzheimer's disease: correlation with the Gonadotrop<strong>in</strong> Hormone<br />
Releas<strong>in</strong>g Hormone (GnRH).<br />
Amyloid beta (Abeta) plaques represent one <strong>of</strong> the primary pathological<br />
features that appear <strong>in</strong> the bra<strong>in</strong>s <strong>of</strong> Alzheimer's patients. Recent f<strong>in</strong>d<strong>in</strong>gs<br />
suggest that the complete proteolytic mach<strong>in</strong>ery required for Abeta<br />
generation is located with<strong>in</strong> lipid rafts. Membrane cholesterol content is<br />
crucial for lipid raft organization and it seems to regulate the membrane<br />
localization and the activity <strong>of</strong> secretases <strong>in</strong>volved <strong>in</strong> the metabolism <strong>of</strong><br />
APP. Epidemiological and biochemical studies <strong>in</strong>dicate that all changes <strong>in</strong><br />
hypothalamic-pituitary gonadal (HPG) hormones (sex steroids, LH,<br />
Gonadotrop<strong>in</strong> releas<strong>in</strong>g Hormone or GnRH) levels follow<strong>in</strong>g<br />
menopause/andropause are <strong>in</strong>volved <strong>in</strong> the cognitive and<br />
neuropathological changes observed <strong>in</strong> AD. Sex steroids have been shown<br />
to be potent neuroprotective agents and a decreased <strong>in</strong>cidence and delay<br />
<strong>in</strong> the onset <strong>of</strong> AD has been described among women on hormone<br />
replacement therapy (HRT).<br />
Direct roles <strong>of</strong> GnRH <strong>in</strong> AD have received scant attention, even if phase III<br />
cl<strong>in</strong>ical trials are currently underway to establish the role <strong>of</strong> a GnRH<br />
agonist <strong>in</strong> lower<strong>in</strong>g the <strong>in</strong>cidence <strong>of</strong> dementia and <strong>in</strong> improv<strong>in</strong>g cognitive<br />
functions <strong>of</strong> AD patients.<br />
Recently, it has been discovered that estrogens are able to up-regulate<br />
the new gene selad<strong>in</strong>-1 (Selective Alzheimer disease <strong>in</strong>dicator 1). Selad<strong>in</strong>-<br />
1 is a gene down-regulated <strong>in</strong> the bra<strong>in</strong> areas <strong>in</strong>volved <strong>in</strong> AD and its overexpression<br />
confer protection aga<strong>in</strong>st Abeta mediated toxicity. Selad<strong>in</strong>-1<br />
was found to be identical to DHCR24, the enzyme that catalyzes the last<br />
step <strong>of</strong> cholesterol biosynthesis. Therefore selad<strong>in</strong>-1 could represent a<br />
key regulator <strong>of</strong> membrane cholesterol and it could be the molecular<br />
mediator <strong>of</strong> the neuroprotective effect <strong>of</strong> estrogens. This project is<br />
devoted to study the role <strong>of</strong> two hormones <strong>of</strong> the HPG axis, estrogen and<br />
GnRH, <strong>in</strong> AD pathogenesis. Moreover, we will <strong>in</strong>vestigate the molecular<br />
mechanisms that can l<strong>in</strong>k these hormonal actions with the cholesterol<br />
content <strong>of</strong> plasma membrane and with the cholesterol-rich microdoma<strong>in</strong>s<br />
organization and functionality, and f<strong>in</strong>ally the possible role for selad<strong>in</strong>-1<br />
as a molecular mediator <strong>of</strong> this biological mechanisms. For this <strong>research</strong><br />
proposal we will utilize different appropriate humane (FNC-B4 and SH-<br />
SY5Y) and mur<strong>in</strong>e (GT1-7, GN11, and primary hippocampal neurons)<br />
cellular models.
The experimental plan aims to clarify three po<strong>in</strong>ts:<br />
1.The <strong>in</strong>volvement <strong>of</strong> membrane cholesterol and lipid membrane<br />
organization <strong>in</strong> the process<strong>in</strong>g <strong>of</strong> the APP and its modulation by<br />
estrogens. We will understand if estrogen stimulation is able to alter the<br />
organization <strong>of</strong> membrane lipids and prote<strong>in</strong>s and the proteolytic<br />
process<strong>in</strong>g <strong>of</strong> the APP, and if these modifications correlate to changes <strong>of</strong><br />
the cholesterol content and <strong>of</strong> selad<strong>in</strong>-1 expression.<br />
2.The role <strong>of</strong> GnRH <strong>in</strong> the modulation <strong>of</strong> the cytotoxic action <strong>of</strong> Abeta and<br />
the APP process<strong>in</strong>g and <strong>in</strong> neuronal excitability. We will clarify how GnRH<br />
affect APP process<strong>in</strong>g, Abeta deposition and Abeta toxicity and how GnRH<br />
modulate excitability <strong>in</strong> hippocampal neurons.<br />
3.The hormonal regulation <strong>of</strong> selad<strong>in</strong>-1, its ability to modulate the HPG<br />
hormone action and its <strong>in</strong>volvement <strong>in</strong> Abeta <strong>in</strong>duced cytotoxicity. We<br />
will evaluate the role <strong>of</strong> selad<strong>in</strong>-1, as a regulator <strong>of</strong> membrane<br />
cholesterol, <strong>in</strong> the amyloidogenic pathway, <strong>in</strong> the amyloid-<strong>in</strong>duced<br />
neurotoxicity and <strong>in</strong> lipid rafts organization and functionality as "signal<strong>in</strong>g<br />
platforms".<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
PRIN – MIUR 2006069900_002<br />
PUR – MIUR 2008<br />
Durata progetto 2 anni<br />
Abstract del progetto Alzheimer's disease: correlation with the Gonadotrop<strong>in</strong> Hormone<br />
Releas<strong>in</strong>g Hormone (GnRH).<br />
Amyloid beta (Abeta) plaques represent one <strong>of</strong> the primary pathological<br />
features that appear <strong>in</strong> the bra<strong>in</strong>s <strong>of</strong> Alzheimer's patients. Recent f<strong>in</strong>d<strong>in</strong>gs<br />
suggest that the complete proteolytic mach<strong>in</strong>ery required for Abeta<br />
generation is located with<strong>in</strong> lipid rafts. Membrane cholesterol content is<br />
crucial for lipid raft organization and it seems to regulate the membrane<br />
localization and the activity <strong>of</strong> secretases <strong>in</strong>volved <strong>in</strong> the metabolism <strong>of</strong><br />
APP. Epidemiological and biochemical studies <strong>in</strong>dicate that all changes <strong>in</strong><br />
hypothalamic-pituitary gonadal (HPG) hormones (sex steroids, LH,<br />
Gonadotrop<strong>in</strong> releas<strong>in</strong>g Hormone or GnRH) levels follow<strong>in</strong>g<br />
menopause/andropause are <strong>in</strong>volved <strong>in</strong> the cognitive and<br />
neuropathological changes observed <strong>in</strong> AD. Sex steroids have been shown<br />
to be potent neuroprotective agents and a decreased <strong>in</strong>cidence and delay<br />
<strong>in</strong> the onset <strong>of</strong> AD has been described among women on hormone<br />
replacement therapy (HRT).<br />
Direct roles <strong>of</strong> GnRH <strong>in</strong> AD have received scant attention, even if phase III<br />
cl<strong>in</strong>ical trials are currently underway to establish the role <strong>of</strong> a GnRH<br />
agonist <strong>in</strong> lower<strong>in</strong>g the <strong>in</strong>cidence <strong>of</strong> dementia and <strong>in</strong> improv<strong>in</strong>g cognitive<br />
functions <strong>of</strong> AD patients.<br />
Recently, it has been discovered that estrogens are able to up-regulate<br />
the new gene selad<strong>in</strong>-1 (Selective Alzheimer disease <strong>in</strong>dicator 1). Selad<strong>in</strong>-<br />
1 is a gene down-regulated <strong>in</strong> the bra<strong>in</strong> areas <strong>in</strong>volved <strong>in</strong> AD and its overexpression<br />
confer protection aga<strong>in</strong>st Abeta mediated toxicity. Selad<strong>in</strong>-1<br />
was found to be identical to DHCR24, the enzyme that catalyzes the last<br />
step <strong>of</strong> cholesterol biosynthesis. Therefore selad<strong>in</strong>-1 could represent a<br />
key regulator <strong>of</strong> membrane cholesterol and it could be the molecular<br />
mediator <strong>of</strong> the neuroprotective effect <strong>of</strong> estrogens. This project is
devoted to study the role <strong>of</strong> two hormones <strong>of</strong> the HPG axis, estrogen and<br />
GnRH, <strong>in</strong> AD pathogenesis. Moreover, we will <strong>in</strong>vestigate the molecular<br />
mechanisms that can l<strong>in</strong>k these hormonal actions with the cholesterol<br />
content <strong>of</strong> plasma membrane and with the cholesterol-rich microdoma<strong>in</strong>s<br />
organization and functionality, and f<strong>in</strong>ally the possible role for selad<strong>in</strong>-1<br />
as a molecular mediator <strong>of</strong> this biological mechanisms. For this <strong>research</strong><br />
proposal we will utilize different appropriate humane (FNC-B4 and SH-<br />
SY5Y) and mur<strong>in</strong>e (GT1-7, GN11, and primary hippocampal neurons)<br />
cellular models.<br />
The experimental plan aims to clarify three po<strong>in</strong>ts:<br />
1.The <strong>in</strong>volvement <strong>of</strong> membrane cholesterol and lipid membrane<br />
organization <strong>in</strong> the process<strong>in</strong>g <strong>of</strong> the APP and its modulation by<br />
estrogens. We will understand if estrogen stimulation is able to alter the<br />
organization <strong>of</strong> membrane lipids and prote<strong>in</strong>s and the proteolytic<br />
process<strong>in</strong>g <strong>of</strong> the APP, and if these modifications correlate to changes <strong>of</strong><br />
the cholesterol content and <strong>of</strong> selad<strong>in</strong>-1 expression.<br />
2.The role <strong>of</strong> GnRH <strong>in</strong> the modulation <strong>of</strong> the cytotoxic action <strong>of</strong> Abeta and<br />
the APP process<strong>in</strong>g and <strong>in</strong> neuronal excitability. We will clarify how GnRH<br />
affect APP process<strong>in</strong>g, Abeta deposition and Abeta toxicity and how GnRH<br />
modulate excitability <strong>in</strong> hippocampal neurons.<br />
3.The hormonal regulation <strong>of</strong> selad<strong>in</strong>-1, its ability to modulate the HPG<br />
hormone action and its <strong>in</strong>volvement <strong>in</strong> Abeta <strong>in</strong>duced cytotoxicity. We<br />
will evaluate the role <strong>of</strong> selad<strong>in</strong>-1, as a regulator <strong>of</strong> membrane<br />
cholesterol, <strong>in</strong> the amyloidogenic pathway, <strong>in</strong> the amyloid-<strong>in</strong>duced<br />
neurotoxicity and <strong>in</strong> lipid rafts organization and functionality as "signal<strong>in</strong>g<br />
platforms".
Nome Laboratory <strong>of</strong> Biochemistry & Molecular Biology <strong>of</strong> Lipids - Mass<br />
Spectrometry "Giovanni Galli"<br />
Contatti<br />
Tel.<br />
E mail<br />
Donatella Caruso, Maurizio Crestani, Emma De Fabiani, Nico Mitro<br />
0250318344 – 0250318393<br />
donatella.caruso@unimi.it, maurizio.crestani@unimi.it,<br />
emma.defabiani@unimi.it, nico.mitro@unimi.it.<br />
Istituto/Dipartimento Department <strong>of</strong> Pharmacological Sciences<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse identificata Nuclear receptors, coregulators, neuroactive steroids and epigenetics <strong>in</strong><br />
neurodegenerative diseases associated to metabolic disorders.<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto
1. MECHANISMS OF NEURODEGENERATION<br />
G. Cell <strong>in</strong>teractions
Nome Pr<strong>of</strong>. Ubaldo ARMATO, MD<br />
Contatti ubaldo.armato@univr.it<br />
Istituto/Dipartimento Histology & Embryology Unit, Dept. <strong>of</strong> Life and Reproduction Sciences,<br />
University <strong>of</strong> Verona Medical School, Verona, Venetia, I-37134, Italy<br />
Proposta di ricerca<br />
The Astrocyte, not just a Bystander <strong>in</strong> Alzheimer’s Disease<br />
(<strong>in</strong> collaboration with Balu Chakravarthy e James F. Whitfield, Institute<br />
for Biological Sciences, National Research Council <strong>of</strong> Canada, Ottawa,<br />
Ont., K1A 0N6, Canada)<br />
Area di <strong>in</strong>teresse identificata - Multidiscipl<strong>in</strong>ary projects<br />
F<strong>in</strong>anziamenti ricevuti<br />
- Basic <strong>research</strong><br />
Titolo progetto ---<br />
Ente f<strong>in</strong>anziatore ---<br />
Durata progetto ----<br />
Abstract del progetto The Astrocyte, not just a Bystander <strong>in</strong> Alzheimer’s Disease<br />
There are two k<strong>in</strong>ds <strong>of</strong> Alzheimer’s disease (AD). There is the rare early<br />
onset AD (EOAD) which <strong>in</strong>cludes less than 5% <strong>of</strong> the cases and is due to<br />
mutation-<strong>in</strong>duced hyperproduction <strong>of</strong> the Aβ42 (amyloid β-(1-42)<br />
fragment <strong>of</strong> the membrane-associated amyloid precursor prote<strong>in</strong> (APP).<br />
Then there is the slowly develop<strong>in</strong>g, late-onset AD (LOADAD that <strong>in</strong>cludes<br />
95-99% <strong>of</strong> the cases. The mutant driver genes <strong>of</strong> EOAD have been<br />
relatively easy to identify. But the key LOAD drivers have been far harder<br />
to f<strong>in</strong>d <strong>in</strong> the host <strong>of</strong> changes associated with the progressive breakdown<br />
<strong>of</strong> neuronal-glial circuits start<strong>in</strong>g <strong>in</strong> the entorh<strong>in</strong>al cortex and spread<strong>in</strong>g<br />
through the hippocampus and <strong>in</strong>to the cerebral hot-spots <strong>of</strong> the cerebral<br />
DMN (default mode neuronal network ) end<strong>in</strong>g <strong>in</strong> catastrophic cognitive<br />
failure with the loss <strong>of</strong> memory formation by the hippocampus be<strong>in</strong>g an<br />
outstand<strong>in</strong>g feature. So far the attention <strong>of</strong> workers <strong>in</strong> the AD field<br />
focused on neurons.<br />
But th<strong>in</strong>gs are chang<strong>in</strong>g. Now we know that certa<strong>in</strong> (radial) astrocytes are<br />
the stem cells for adult neurogenesis <strong>in</strong> the hippocampal dentate gyrus<br />
and therefore are key components <strong>of</strong> the memory-form<strong>in</strong>g mach<strong>in</strong>ery.<br />
We are learn<strong>in</strong>g that massive astrocyte syncytial networks connect to,<br />
and collaborate with, neurons <strong>in</strong> susta<strong>in</strong><strong>in</strong>g and driv<strong>in</strong>g bra<strong>in</strong> functions.<br />
And they are co-conspirators with neurons <strong>in</strong> the cognitive catastrophe <strong>of</strong><br />
AD. Therefore we have developed a method <strong>of</strong> cultur<strong>in</strong>g normally<br />
function<strong>in</strong>g (m<strong>in</strong>imally altered) astrocytes directly follow<strong>in</strong>g their removal<br />
from adult human cerebral cortices. We are us<strong>in</strong>g these cells, which we<br />
call NAHAs (normal human astrocytes), to explore the possible roles <strong>of</strong><br />
astrocytes <strong>in</strong> AD. There is an ever-escalat<strong>in</strong>g list <strong>of</strong> th<strong>in</strong>gs that might cause<br />
<strong>of</strong> help cause LOAD. At first it was thought that the strik<strong>in</strong>g fibrillar<br />
amyloid plaques <strong>in</strong> AD bra<strong>in</strong>s were the neuronal circuit break<strong>in</strong>g killers.<br />
But plaque-rich bra<strong>in</strong>s <strong>of</strong> cognitively normal or even above-normal 90-
years old nuns and the failure <strong>of</strong> plaque formation <strong>in</strong> transgenic mice to<br />
correlate with neuronal and cognitive loss argue that this is probably not<br />
true. It is now suspected that it is a build-up <strong>of</strong> <strong>in</strong>visible pre-plaque Aβ42<br />
oligomers that start destroy<strong>in</strong>g synapses and disconnect<strong>in</strong>g cognitive<br />
circuits. We have been and will keep work<strong>in</strong>g on three th<strong>in</strong>gs that seem<br />
to be part <strong>of</strong> the LOAD process: the <strong>in</strong>duction <strong>of</strong> VEGF production by<br />
astrocytes; the expression and function <strong>of</strong> p75 NTR , an Aβ42 and<br />
neurotrop<strong>in</strong> receptor.<br />
VEGF Production We have so far found that both Aβ42 and a<br />
comb<strong>in</strong>ation <strong>of</strong> three glial-<strong>in</strong>duced cytok<strong>in</strong>es (IL-1β, IFN-γ and TNF-α) that<br />
appear <strong>in</strong> the <strong>in</strong>flammatory environment <strong>of</strong> an AD bra<strong>in</strong> can <strong>in</strong>duce<br />
NAHAs to produce and secrete ma<strong>in</strong>lythe VEGF-A165 is<strong>of</strong>orm. Interest<strong>in</strong>gly<br />
none <strong>of</strong> the three cytok<strong>in</strong>es can significantly stimulate VEGF production,<br />
but together they are more potent stimulators than Aβ35-42 (an active<br />
fragment <strong>of</strong> Aβ42). We must now f<strong>in</strong>d out how Aβ42 (i.e., Aβ35-42) by<br />
itself and how the three cytok<strong>in</strong>es together produce the HIF-1α•HIF-1β<br />
heterodimer that stimulates VEGF production <strong>in</strong> the NAHAs. Is VEGF just a<br />
m<strong>in</strong>or player <strong>in</strong> AD? What might VEGF do <strong>in</strong> an AD bra<strong>in</strong>? The release <strong>of</strong><br />
angiogenic VEGF from the Aβ42/cytok<strong>in</strong>e ensemble-stimulated astrocytes <strong>of</strong><br />
the neurobarrier-coupl<strong>in</strong>g units with their end-feet attached to blood vessels<br />
damaged by deposited Aβ42 would be expected to reverse, or at least<br />
m<strong>in</strong>imize, the Aβ42-<strong>in</strong>duced vascular damage widely believed to be<br />
responsible for hypoxia, glucose shortages, breached blood-bra<strong>in</strong> barrier and<br />
fail<strong>in</strong>g Aβ42 dra<strong>in</strong>age. But then it may not. Hypoxic endothelial cells <strong>in</strong> the<br />
hypoperfused regions <strong>of</strong> an AD bra<strong>in</strong> downregulate their MEOX-2 homeobox<br />
gene and its GAX prote<strong>in</strong> product. This causes the endothelial cells to<br />
upregulate the AFX1 forkhead transcription factor that downregulates their<br />
anti-apoptogenesis Bcl-XL gene by stimulat<strong>in</strong>g the BCL-6 transcriptional<br />
repressor. The downregulation <strong>of</strong> MEOX-2 and its GAX prote<strong>in</strong> product also<br />
lowers the level <strong>of</strong> the Aβ42-clear<strong>in</strong>g LRP1. Therefore while the <strong>in</strong>creased<br />
VEGF production <strong>in</strong> an AD bra<strong>in</strong> would <strong>in</strong>deed stimulate angiogenesis, the new<br />
blood vessels would be dysfunctional with endothelial cells unable to clear<br />
Aβ1-42 and hyper-prone to apoptogenesis. But VEGF may have another<br />
impact on memory formation. It is a major factor <strong>in</strong> the ma<strong>in</strong>tenance <strong>of</strong> the<br />
vascular-based the radial glial (astrocyte-like) neuronal stem cell niche <strong>in</strong> the<br />
dentate gyral subgranular zone, a center <strong>of</strong> adult neurogenesis. VEGF<br />
stimulates the production <strong>of</strong> the niche’s endothelial cells that produce the<br />
neurostimulatory BDNF factor. Thus, angiogenesis is l<strong>in</strong>ked to neurogenesis<br />
<strong>in</strong> the niche to cont<strong>in</strong>uously supply the new granular cells needed to start<br />
the record<strong>in</strong>g the memory <strong>of</strong> novel polymodal <strong>in</strong>puts from the entorh<strong>in</strong>al<br />
cortex. Therefore the <strong>in</strong>creased expression <strong>of</strong> VEGF <strong>in</strong> a normal bra<strong>in</strong> or<br />
<strong>in</strong>jection <strong>of</strong> VEGF <strong>in</strong>to such a bra<strong>in</strong> might promote the survival and<br />
proliferation <strong>of</strong> neural progenitor cells as <strong>in</strong>dicated by the reported<br />
response <strong>of</strong> hippocampal neuronal progenitor cells to <strong>in</strong>fusion <strong>of</strong> the<br />
prote<strong>in</strong> <strong>in</strong>to the lateral ventricles <strong>of</strong> adult rats. But this may be unlikely <strong>in</strong> an
AD bra<strong>in</strong> even with its elevated VEGF expression, because it has been<br />
reported that the core AD pathology prevents any VEGF-stimulated<br />
immature granule cells from differentiat<strong>in</strong>g <strong>in</strong>to mature granule cells.<br />
p75 NTR , the villa<strong>in</strong>ous Darth Vader <strong>of</strong> the AD bra<strong>in</strong>? p75 NTR comb<strong>in</strong>es with<br />
the TrkA neurotroph<strong>in</strong> receptor to drive bra<strong>in</strong> development when activated<br />
by BDNF and NGF. But it fades away after development only to re-emerge<br />
<strong>in</strong> the ag<strong>in</strong>g, Aβ42 –accumulat<strong>in</strong>g AD bra<strong>in</strong> along with the downregulation<br />
<strong>of</strong> TrkA. Now without restra<strong>in</strong>t by TrkA it becomes dangerous because it<br />
has a cytoplasmic apoptogenic DD (‘death doma<strong>in</strong>’) which is turned on<br />
when the receptor is activated by Aβ42 b<strong>in</strong>d<strong>in</strong>g to its neurotroph<strong>in</strong> b<strong>in</strong>d<strong>in</strong>g<br />
site. When its DD is not opposed by associated by TrkA and it meets Aβ42<br />
on a neuronal surface it kills the cell via its DD. We have found that<br />
accumulat<strong>in</strong>g Aβ42 actually stimulates the expression <strong>of</strong> p75 NTR by<br />
neurons and NAHAs. Obviously this could accelerate AD development.<br />
Aβ42 and neurotrop<strong>in</strong> receptor. But then there are also <strong>in</strong>dications <strong>of</strong> a<br />
Aβ42/ p75 NTR vicious cycle. Activated p75 NTR receptors have been shown<br />
to stimulate caveolar sph<strong>in</strong>gomyel<strong>in</strong>ase to release ceramide from a<br />
pool <strong>of</strong> sph<strong>in</strong>gomyel<strong>in</strong> <strong>in</strong> the cell membrane. The released ceramide<br />
post-transcript-ionally stabilizes BACE1 which, by β-cleav<strong>in</strong>g membrane-<br />
associated AβPP, accelerates the drive to full-blown AD by <strong>in</strong>creas<strong>in</strong>g Aβ42<br />
production. This Aβ42would then switch back and b<strong>in</strong>d to p75 NTR receptors<br />
and <strong>in</strong>crease the calpa<strong>in</strong>-driven cleavage <strong>of</strong> the receptor’s C-term<strong>in</strong>al<br />
membrane-associated doma<strong>in</strong>s which ultimately <strong>in</strong>duce the receptors’<br />
cytoplasmic death doma<strong>in</strong>s and trigger a cytocidal apoptogenic caspase<br />
8/caspase 3 cascade. We are now try<strong>in</strong>g to confirm the contrapuntal rise<br />
and fall <strong>of</strong> p75 NTR and TrkA <strong>in</strong> a key region <strong>of</strong> the human AD bra<strong>in</strong> such as<br />
the hippocampus. And along with this we are try<strong>in</strong>g to f<strong>in</strong>d out with<br />
whether NAHAs can start an Aβ42/ p75 NTR vicious cycle. If they can, it will be<br />
a strong <strong>in</strong>dication that astrocytes have a major role <strong>in</strong> the cognitive<br />
collapse <strong>of</strong> the AD bra<strong>in</strong>.
Nome Manuela MARCOLI<br />
Contatti<br />
Dipartimento di Medic<strong>in</strong>a Sperimentale (DIMES), Sezione di Farmacologia<br />
e Tossicologia – Università degli Studi di Genova<br />
Viale Cembrano, 4 - I-16148 Genova, Italy<br />
Phone: +39 010 3532656; Fax: +39 010 3993360<br />
E-mail: marcoli@pharmatox.unige.it<br />
Istituto/Dipartimento Dipartimento di Medic<strong>in</strong>a Sperimentale (DIMES), Sezione di Farmacologia<br />
e Tossicologia – Università degli Studi di Genova<br />
The <strong>research</strong> strategy we propose addresses the need for better knowledge <strong>of</strong> early molecular events<br />
lead<strong>in</strong>g to neuronal dysfunction <strong>in</strong> Alzheimer’s disease (AD). We propose to focus on the effects <strong>of</strong> soluble<br />
amyloid-beta peptides (Aβ) on mechanisms susta<strong>in</strong><strong>in</strong>g neuron-astrocyte cross-talk at glutamatergic<br />
synapses and on network synaptic activity <strong>in</strong> Multi Electrode Array (MEA)-coupled neuron/astrocyte<br />
cultures, <strong>in</strong> both wild type and triple transgenic AD mouse (3xTg-AD mouse). Comb<strong>in</strong>ed use <strong>of</strong> isolated<br />
models (nerve term<strong>in</strong>als and astrocyte processes) and an <strong>in</strong>tegrated model (MEA-coupled<br />
neuron/astrocyte cultures) will provide complementary data to understand Aβ-related dysruption <strong>of</strong><br />
glutamatergic transmission <strong>in</strong> AD. Assessment <strong>of</strong> changes <strong>of</strong> synaptic transmission at the level <strong>of</strong> astrocyte<br />
processes and nerve term<strong>in</strong>als (exposed to Aβ) together with analysis <strong>of</strong> the effects <strong>of</strong> (endogenously<br />
produced and exogenously added) Aβ on neuron/astrocyte network activity may shed new light on the<br />
molecular and cellular mechanisms underly<strong>in</strong>g early dysfunction <strong>of</strong> glutamatergic transmission <strong>in</strong> AD,<br />
help<strong>in</strong>g to discover new therapeutic targets to improve nerve cell signal transduction and ultimately<br />
prevent<strong>in</strong>g neuronal dysfunction.<br />
Background and rationale: Astrocytes regulate neuron function through nonoverlapp<strong>in</strong>g doma<strong>in</strong><br />
organization: one astrocyte processes contact thousands <strong>of</strong> synapses, promot<strong>in</strong>g neuronal synchrony and<br />
regulat<strong>in</strong>g synaptic transmission; the neuro/gliotransmitter glutamate mediate bidirectional neuronastrocyte<br />
communication. Although altered glutamate transmission and astrocyte global perturbation are<br />
reported <strong>in</strong> AD, scarce attention is focused on the potential role <strong>of</strong> astrocyte processes <strong>in</strong> synaptic<br />
dysfunction <strong>in</strong> AD. Soluble Aβ appears <strong>in</strong>volved <strong>in</strong> synaptic dysfunction; focus on the impact <strong>of</strong> Aβ on<br />
mechanisms susta<strong>in</strong><strong>in</strong>g neuron-astrocyte cross-talk at glutamatergic synapses might unravel key steps <strong>in</strong><br />
synaptic impairment and <strong>in</strong> the cascade <strong>of</strong> events caus<strong>in</strong>g specific sets <strong>of</strong> neurons becom<strong>in</strong>g dysfunctional.<br />
Experimental models and Methods: Aβ effects on [Ca 2+] i and transmitter release will be directly<br />
<strong>in</strong>vestigated on astrocyte processes (gliosomes) and nerve term<strong>in</strong>als (synaptosomes) from adult wild type<br />
and 3xTg-AD mouse bra<strong>in</strong>s. Gliosomes and synaptosomes stem from astrocytes and neurons obta<strong>in</strong>ed<br />
from adult mouse bra<strong>in</strong>; <strong>in</strong> situ maturation <strong>of</strong> neurons and astrocytes would assure that the impact <strong>of</strong><br />
<strong>in</strong>tracellularly accumulat<strong>in</strong>g Aβ would also be accounted for when study<strong>in</strong>g glutamate release and Ca 2+<br />
signal<strong>in</strong>g <strong>in</strong> nerve term<strong>in</strong>als and astrocyte processes prepared from 3xTg-AD mouse bra<strong>in</strong>. Integrated<br />
effects <strong>of</strong> Aβ on network activity and synaptic connection maturation will be analyzed by non-conventional<br />
electrophysiology on cultured neurons/astrocytes from wild type and 3xTg-AD mouse bra<strong>in</strong> on MEAs,<br />
allow<strong>in</strong>g long-term, non <strong>in</strong>vasive, multielectrode detection <strong>of</strong> neuronal network activity and<br />
synchronization; the bioelectronic system has proven very sensitive <strong>in</strong> detect<strong>in</strong>g early neuron damage and<br />
loss <strong>of</strong> synaptic transmission.<br />
Human resources: key persons, experience and know-how that can be accessed without additional funds:<br />
Manuela Marcoli, Guido Maura (University <strong>of</strong> Genova, Department <strong>of</strong> Experimental Medic<strong>in</strong>e DIMES;<br />
Center <strong>of</strong> Excellence for Biomedical Research CEBR; National Institute <strong>of</strong> Neuroscience INN): transmitter<br />
release from CNS preparations (nerve term<strong>in</strong>als, astrocyte processes) and cell cultures<br />
Sergio Mart<strong>in</strong>oia (University <strong>of</strong> Genoa, Department <strong>of</strong> Biophysical and Electronic Eng<strong>in</strong>eer<strong>in</strong>g DIBE;<br />
<strong>Italian</strong> Institute <strong>of</strong> Technology IIT): Micro electrode arrays technology; MEA-based systems and <strong>in</strong>-vitro<br />
neural <strong>in</strong>terface and neuro-robotics<br />
Mario Nobile (National Research Council, Institute <strong>of</strong> Biophysics, Genova): [Ca 2+ ]I imag<strong>in</strong>g on s<strong>in</strong>gle nerve<br />
term<strong>in</strong>als and astrocyte processes<br />
Area di <strong>in</strong>teresse identificata First challenge: scientific; understand<strong>in</strong>g the mechanisms <strong>of</strong> the disease
Priorites: - Basic <strong>research</strong><br />
- Multidiscipl<strong>in</strong>ary projects<br />
- New treatment strategies<br />
F<strong>in</strong>anziamenti ricevuti - ongo<strong>in</strong>g <strong>research</strong> support<br />
Titolo progetto Neuronal differentiation: functional evaluation <strong>of</strong> neurotransmission<br />
Ente f<strong>in</strong>anziatore<br />
MIUR – PRIN mod B Anno 2008 - prot. 20088JEHW3_005<br />
(to Guido Maura)<br />
Durata progetto 2 years<br />
Abstract del progetto To understand the molecular mechanisms associated to the<br />
differentiation <strong>of</strong> neuron precursor cells, we plan to use Neuroblastoma<br />
N18TG2 clones, transfected with Chol<strong>in</strong>e Acetyl Transferase (ChAT) and<br />
overexpress<strong>in</strong>g early growth response factor-1 (EGR-1), that mimic<br />
neuron precursor cells. The <strong>research</strong> program plans to <strong>in</strong>vestigate on the<br />
possibility to <strong>in</strong>duce a fully developed neuron phenotype <strong>in</strong> N18TG2<br />
clones transfected with ChAT and/or overexpress<strong>in</strong>g EGR-1, by <strong>in</strong>hibit<strong>in</strong>g<br />
the expression <strong>of</strong> the Repressor element-1 Silenc<strong>in</strong>g Transcription (REST),<br />
cod<strong>in</strong>g for a transcriptional repressor <strong>of</strong> neurogenesis. Our analyses will<br />
focus on evaluation <strong>of</strong> the cell ability to communicate through<br />
neurotransmitters and regulated exocytosis upon REST knock down; if<br />
this occurs the gene expression pr<strong>of</strong>ile will be determ<strong>in</strong>ed. The project<br />
will reveal gene networks relevant for complete maturation <strong>of</strong> the<br />
neuroblastoma cell l<strong>in</strong>e, and hopefully will be <strong>of</strong> help <strong>in</strong> understand<strong>in</strong>g<br />
the neuron maturation process.<br />
F<strong>in</strong>anziamenti ricevuti - ongo<strong>in</strong>g <strong>research</strong> support<br />
Titolo progetto<br />
Mechanisms <strong>of</strong> glial and neuronal glutamate release as specific<br />
therapeutic targets <strong>in</strong> bra<strong>in</strong> ischemia<br />
Ente f<strong>in</strong>anziatore<br />
Fondazione Cassa di Risparmio di Genova, 2008<br />
(to Mario Nobile, role <strong>of</strong> MM: participant)<br />
Durata progetto 2 years<br />
Abstract del progetto The aim <strong>of</strong> the project is to get new light on molecular and cellular<br />
mechanisms activated dur<strong>in</strong>g/after ischemia to f<strong>in</strong>d out pharmacological<br />
targets for neuroprotection. Bra<strong>in</strong> ischemia results from multiple related<br />
mechanisms <strong>in</strong>volv<strong>in</strong>g both neurons and glial cells. The neuron-glia crosstalk,<br />
subserved by mechanisms <strong>in</strong>clud<strong>in</strong>g glutamate is <strong>of</strong> fundamental<br />
importance to the synapse physiology and to the synaptic transmission<br />
dysregulation <strong>in</strong> neurodegenerative diseases; <strong>in</strong>creased extracellular<br />
glutamate and <strong>in</strong>tracellular calcium overload lead to cell death. Multiple<br />
mechanisms are responsible for glutamate release: vesicular release,<br />
glutamate transporter reversal, and possibly activation <strong>of</strong> ATP<br />
P2X7receptors, <strong>of</strong> volume-regulated anion channels or <strong>of</strong><br />
connex<strong>in</strong>/pannex<strong>in</strong>. hemichannels. These ways for glutamate release can<br />
function both on neurons and astrocytes, although the role for glial cells<br />
<strong>in</strong> ischemic neuron damage is still debated. As the pharmacological<br />
<strong>in</strong>tervention based on glutamate ionotropic receptor antagonism was<br />
unsatisfactory, knowledge <strong>of</strong> the glutamate modes <strong>of</strong> exit dur<strong>in</strong>g ischemia<br />
might help to f<strong>in</strong>d new specific therapeutic targets. The <strong>research</strong> strategy<br />
will be based on the <strong>in</strong>vestigation at synapse level, at the level <strong>of</strong> s<strong>in</strong>gle<br />
cell and <strong>of</strong> the cell network (slices), on the participation <strong>of</strong> P2X7<br />
receptors, VRAC channels and pannex<strong>in</strong> <strong>in</strong> ischemic damage <strong>in</strong> vitro. As<br />
we previously found that adenos<strong>in</strong>e controls astrocyte P2X7 receptors,<br />
we will <strong>in</strong>vestigate on the relationship between adenos<strong>in</strong>e and P2X7<br />
receptors dur<strong>in</strong>g ischemic <strong>in</strong>sult.
F<strong>in</strong>anziamenti ricevuti - submitted proposal<br />
Titolo progetto<br />
Synapse and Amyloid-beta: effects on astrocyte processes and nerve<br />
term<strong>in</strong>al<br />
Ente f<strong>in</strong>anziatore<br />
Alzheimer’s Association 2010 Investigator-Initiated Research Grant<br />
Proposal Identifiers LOIID: 173512: approved<br />
Full proposal: under evaluation<br />
(role <strong>of</strong> MM: pr<strong>in</strong>cipal <strong>in</strong>vestigator)<br />
Durata progetto 3 years<br />
Abstract del progetto<br />
Understand<strong>in</strong>g <strong>of</strong> neuron-astrocyte <strong>in</strong>teraction at synapses is crucial to<br />
successful therapeutic approach to neurodegenerative diseases.<br />
Astrocytes regulate neuronal function through nonoverlapp<strong>in</strong>g doma<strong>in</strong><br />
organization: the processes <strong>of</strong> one astrocyte contact thousands <strong>of</strong><br />
synapses, promot<strong>in</strong>g neuronal synchrony and regulat<strong>in</strong>g neuron<br />
excitability and synaptic transmission. The neuro/glio transmitters<br />
glutamate and ATP mediate bidirectional neuron-astrocyte<br />
communication at synapses. Although altered glutamate or ATP<br />
transmission and astrocyte global perturbation are reported <strong>in</strong> AD<br />
models, scarce attention has been focused on the potential role <strong>of</strong><br />
astrocyte processes <strong>in</strong> synaptic dysfunction <strong>in</strong> AD. Soluble amyloid-beta<br />
peptides are <strong>in</strong>volved <strong>in</strong> synaptic dysfunction, an early event <strong>in</strong> the<br />
pathogenesis <strong>of</strong> AD before synapse loss. Our proposal focus on the effects<br />
<strong>of</strong> soluble amyloid-beta on the mechanisms subserv<strong>in</strong>g bidirectional<br />
communication between astrocyte processes and nerve term<strong>in</strong>als. Focus<br />
on the impact <strong>of</strong> amyloid-beta peptides on astrocyte process might<br />
unravel key steps <strong>in</strong> synaptic impairment and <strong>in</strong> the cascade <strong>of</strong> events<br />
caus<strong>in</strong>g specific sets <strong>of</strong> neurons becom<strong>in</strong>g dysfunctional. How? Astrocyte<br />
processes (gliosomes) and nerve term<strong>in</strong>als (synaptosomes) from wild type<br />
and transgenic AD mouse bra<strong>in</strong>s will be used, allow<strong>in</strong>g direct <strong>in</strong>vestigation<br />
on the amyloid-beta effects on <strong>in</strong>tracellular calcium and transmitter<br />
release. It is worth not<strong>in</strong>g that gliosomes and synaptosomes stem from<br />
astrocytes and neurons obta<strong>in</strong>ed from adult mouse bra<strong>in</strong>; <strong>in</strong> situ<br />
maturation <strong>of</strong> gliosome-produc<strong>in</strong>g astrocytes and <strong>of</strong> synaptosomeproduc<strong>in</strong>g<br />
neurons provides experimental models suitable to <strong>in</strong>vestigate<br />
on amyloid-beta effects <strong>in</strong> adult life. Integrated effects <strong>of</strong> amyloid-beta on<br />
network activity and synaptic connection maturation will be analyzed on<br />
co-cultured neurons/astrocytes from wild type and transgenic AD mouse<br />
bra<strong>in</strong> on multielectrode arrays, by non-conventional electrophysiology<br />
(allow<strong>in</strong>g long-term, non <strong>in</strong>vasive, multielectrode detection <strong>of</strong><br />
spontaneous and evoked fir<strong>in</strong>g activity and neuronal network<br />
synchronization). This bioelectronic system has proven very sensitive <strong>in</strong><br />
detect<strong>in</strong>g early neuronal damage and loss <strong>of</strong> synaptic transmission. Why?<br />
Assessment <strong>of</strong> changes <strong>of</strong> synaptic transmission at the level <strong>of</strong> astrocyte<br />
processes and nerve term<strong>in</strong>als (exposed to amyloid-beta) together with<br />
analysis <strong>of</strong> the amyloid-beta effects on neuron/astrocyte network activity<br />
may shed new light on the molecular and cellular mechanisms underly<strong>in</strong>g<br />
early neurodegenerative processes and cognitive dysfunction <strong>in</strong> AD,<br />
help<strong>in</strong>g to discover new therapeutic targets to improve nerve cell signal<br />
transduction and ultimately prevent<strong>in</strong>g neuronal dysfunction and synapse<br />
loss.
F<strong>in</strong>anziamenti ricevuti - completed <strong>research</strong> support<br />
Titolo progetto<br />
Feasibility <strong>of</strong> a prototypical system development for <strong>in</strong> vitro test<strong>in</strong>g for<br />
biomedical, toxicological and ambiental purpose<br />
Ente f<strong>in</strong>anziatore<br />
Scientific and Technological Park <strong>of</strong> Liguria Program Objective 2 2000-<br />
2006 (to Sergio Mart<strong>in</strong>oia, role <strong>of</strong> MM: responsible <strong>of</strong> Unit)<br />
Durata progetto 2 years<br />
Abstract del progetto The goal <strong>of</strong> this project was to set up neuron cultures on multielectrode<br />
arrays allow<strong>in</strong>g neuropharmacological/neurotoxicological analysis <strong>of</strong> the<br />
<strong>in</strong>tegrated effects <strong>of</strong> neuroactive substances on network activity<br />
Comb<strong>in</strong><strong>in</strong>g the study <strong>of</strong> the network fir<strong>in</strong>g activity with the study <strong>of</strong> the<br />
release <strong>of</strong> the excitatory transmitter glutamate and <strong>of</strong> the activation <strong>of</strong><br />
the <strong>in</strong>tracellular pathways follow<strong>in</strong>g ionotropic receptor (NMDA,<br />
AMPA/ka<strong>in</strong>ate) activation and <strong>in</strong>volved <strong>in</strong> the excitotoxic neuron cell<br />
damage or death would allow an <strong>in</strong>tegrated mechanistic-based approach<br />
to neurotoxicity evaluatio <strong>in</strong> neuron network. Non conventional<br />
electrophysiological and neurochemical approach allow<br />
neuropharmacological /neurotoxicological analysis <strong>of</strong> the <strong>in</strong>tegrated<br />
effects <strong>of</strong> neuroactive substances on the network activity and dissection<br />
<strong>of</strong> the mechanisms underly<strong>in</strong>g complex network responses to the<br />
substances.<br />
F<strong>in</strong>anziamenti ricevuti - completed <strong>research</strong> support<br />
Titolo progetto<br />
Pharmacological control <strong>of</strong> extracellular excitatory am<strong>in</strong>o acid<br />
accumulation and cellular calcium overload <strong>in</strong> neonatal<br />
Ente f<strong>in</strong>anziatore<br />
ischemia/reperfusion<br />
Mariani Foundation (Milan) R-07-66<br />
(to Mario Nobile, role <strong>of</strong> MM: participant)<br />
Durata progetto 2 years<br />
Abstract del progetto The study evaluates acute and long-term (60 days) effects <strong>of</strong> per<strong>in</strong>atal<br />
hypoxia, <strong>in</strong> order to f<strong>in</strong>d new pharmacological targets to be used <strong>in</strong><br />
<strong>in</strong>tervention devoted to prevention/protection aga<strong>in</strong>st neonatal ischemic<br />
neuron damage. Per<strong>in</strong>atal hypoxia-ischemia is a major cause <strong>of</strong> neonatal<br />
morbidity and mortality. A number <strong>of</strong> evidences <strong>in</strong>dicate that ischemic<br />
neuron damage can depend on <strong>in</strong>crease <strong>of</strong> extracellular K + accumulation<br />
<strong>of</strong> excitatory am<strong>in</strong>oacids and <strong>of</strong> other transmitter (such as<br />
adenos<strong>in</strong>e/ATP), and <strong>in</strong>tracellular Ca 2+ overload, trigger<strong>in</strong>g excitotoxicity<br />
and apoptotic/necrotic nerodegeneration. Such events might play<br />
different roles depend<strong>in</strong>g on the developmental stage <strong>of</strong> central nervous<br />
system. Scarce reports are available on specific models, allow<strong>in</strong>g<br />
dissection <strong>of</strong> diverse mechanisms possibly <strong>in</strong>volved and temporal<br />
sequences <strong>of</strong> neonatal ischemia. Relative contributions <strong>of</strong> neurons and<br />
glia and <strong>of</strong> their bi-directional communication <strong>in</strong> the control <strong>of</strong> glutamate<br />
synaptic level and <strong>in</strong> excitotoxicity trigger<strong>in</strong>g and execution, are not<br />
clearly def<strong>in</strong>ed. Knowledge <strong>of</strong> the modes for efflux <strong>of</strong> excitatory<br />
am<strong>in</strong>oacid and their regulation, <strong>in</strong> early and late phases <strong>of</strong><br />
ischemia/reperfusion, could open the possibility to reduce the<br />
extracellular excitatory am<strong>in</strong>oacid levels <strong>in</strong> different neonatal ischemia<br />
phases. As <strong>in</strong>tracellular Ca 2+ accumulation seems prerequisite for neuron<br />
damage cascade, dampen<strong>in</strong>g <strong>of</strong> Ca 2+ <strong>in</strong>flux through ionotropic glutamate
or pur<strong>in</strong>ergic receptors (e.g. P2X7) could significantly reduce neuron<br />
damage. We therefore propose <strong>in</strong>vestigation on glutamate efflux and<br />
cellular Ca 2+ levels <strong>in</strong> physiological conditions and dur<strong>in</strong>g ischemia <strong>in</strong> vitro<br />
models <strong>of</strong> neonatal bra<strong>in</strong> (preparations from neonatal and 60 days-old<br />
rats, models for premature <strong>in</strong>fant and adulthood bra<strong>in</strong>, respectively).<br />
Parallel studies will be conduced with the aim to unravel whether<br />
glutamate release from astroglial cells can be modulated by endogenous<br />
signal<strong>in</strong>g molecules through the regulation <strong>of</strong> swell<strong>in</strong>g-activated Cl -<br />
channels. New pharmacological targets to be used <strong>in</strong> <strong>in</strong>tervention<br />
devoted to prevention/protection aga<strong>in</strong>st neonatal ischemic neuron<br />
damage, will be searched for through the follow<strong>in</strong>g <strong>in</strong>termediate steps: -<br />
better knowledge <strong>of</strong> the functional role played by ionotropic glutamate<br />
and pur<strong>in</strong>e receptors on neuron and glial cells; - better knowledge <strong>of</strong> the<br />
modes responsible for extracellular glutamate accumulation and <strong>of</strong> their<br />
relative importance <strong>in</strong> the temporal sequence <strong>of</strong> events dur<strong>in</strong>g<br />
ischemia/reperfusion; -better knowledge <strong>of</strong> the mechanisms regulat<strong>in</strong>g<br />
activity <strong>of</strong> swell<strong>in</strong>g-activated Cl - channels <strong>in</strong>volved <strong>in</strong> the pathologic<br />
release <strong>of</strong> excitatory am<strong>in</strong>o acids; - identification <strong>of</strong> receptors whose<br />
activation (or blockade) might affect vesicular excitatory am<strong>in</strong>oacid efflux<br />
or glutamatergic pathways or neuron-glia activation <strong>in</strong> different phases <strong>of</strong><br />
ischemia/reperfusion.<br />
F<strong>in</strong>anziamenti ricevuti - completed <strong>research</strong> support<br />
Titolo progetto<br />
Neuron networks coupled <strong>in</strong> vitro to microtransducers and artificial<br />
body: a new potent device to study neuronal <strong>in</strong>terfaces and cerebral<br />
plasticity <strong>in</strong> vitro<br />
Ente f<strong>in</strong>anziatore<br />
<strong>Italian</strong> M<strong>in</strong>istry <strong>of</strong> University and Scientific Research (FIRB 2002)<br />
RBAU012KF8_005<br />
(to Guido Maura, role <strong>of</strong> MM: participant)<br />
Durata progetto 3 years<br />
Abstract del progetto The goal <strong>of</strong> the project was to <strong>in</strong>vestigate on spontaneous and<br />
electrically-evoked activity <strong>of</strong> neuronal networks on microtransducer<br />
arrays for a better knowledge <strong>of</strong> the cell mechanisms underly<strong>in</strong>g burst<br />
generation and propagation. To this end, non conventional<br />
electrophysiology on MEA will be applied to detect the effects <strong>of</strong><br />
chemical <strong>in</strong>terference on neuron-specific features l<strong>in</strong>ked to neuron<br />
function<strong>in</strong>g (electrophysiological events at level <strong>of</strong> s<strong>in</strong>gle cells and at<br />
the network level) and will be comb<strong>in</strong>ed with neurochemical analysis<br />
for neuron-specific features l<strong>in</strong>ked to neuron function<strong>in</strong>g<br />
(neurotransmitter process<strong>in</strong>g and release; presence and function<strong>in</strong>g <strong>of</strong><br />
neurotransmitter receptors and l<strong>in</strong>kage to transduction mechanisms)<br />
comb<strong>in</strong>ed with the electrophysiological analysis.
Nome Domenici Luciano<br />
Contatti domenici@<strong>in</strong>.cnr.it; luciano.domenici@univaq.it<br />
Istituto/Dipartimento Neuroscience Institute, CNR, Via G. Moruzzi 1, 56100 Pisa; Dep. STB,<br />
University <strong>of</strong> L’Aquila, L’Aquila.<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse identificata Alzheimer’s disease, Age<strong>in</strong>g<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Active projects:<br />
1) RAGE, MAP k<strong>in</strong>ases and Abeta <strong>in</strong>duced synaptic dysfunction.<br />
2) From bra<strong>in</strong> ischemia to beta amyloid toxicity <strong>in</strong> Alzheimer’s<br />
disease; neurobiological mechanisms, new biomarkers and<br />
therapeutical approach.<br />
Submitted projects:<br />
- Vascular trigger<strong>in</strong>g <strong>of</strong> beta amyloid toxicity <strong>in</strong> AD.<br />
- BDNF and beta amyloid toxicity, build<strong>in</strong>g a bridge from<br />
neurobiological mechanisms to treatment <strong>of</strong> bra<strong>in</strong> disorders<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
1) American Health Assistance Foundation (AHAF).<br />
2) Regione Toscana, Regional Health Research Program 2009 (first<br />
step approval passed, f<strong>in</strong>al approval and fund<strong>in</strong>g pend<strong>in</strong>g).<br />
1) Two years.<br />
2) Two years.<br />
1. Abstract project AHAF.<br />
Beta amyloid prote<strong>in</strong> (Aβ) is the pr<strong>in</strong>cipal component <strong>of</strong> senile plaques, a<br />
neurophatological prom<strong>in</strong>ent feature <strong>of</strong> Alzheimer's disease (AD).<br />
Increas<strong>in</strong>g evidence suggests that loss <strong>of</strong> neuronal function and cognitive<br />
impairment precede the accumulation <strong>of</strong> Aβ plaques <strong>in</strong> AD. We<br />
hypothesize that oligomeric Aβ is <strong>in</strong>volved <strong>in</strong> neuronal dysfunction dur<strong>in</strong>g<br />
an early phase <strong>of</strong> AD. We will <strong>in</strong>vestigate the mechanisms underly<strong>in</strong>g<br />
oligomeric Aβ <strong>in</strong>duced synaptic dysfunction <strong>in</strong> entorh<strong>in</strong>al cortex (EC)<br />
whose impairment contributes to cognitive decl<strong>in</strong>e <strong>in</strong> AD. We will address<br />
three specific aims:<br />
1. To test the hypothesis that Aβ affects cortical synaptic plasticity. The<br />
effects <strong>of</strong> different concentrations <strong>of</strong> oligomeric Aβ on synaptic<br />
transmission and efficacy will be <strong>in</strong>vestigated <strong>in</strong> EC slices us<strong>in</strong>g<br />
extracellular and s<strong>in</strong>gle cell record<strong>in</strong>gs.<br />
2. To verify the identity <strong>of</strong> receptors and <strong>in</strong>tracellular pathways<br />
transduc<strong>in</strong>g Aβ signal. Receptor for Advanced Glycation Endproducts<br />
(RAGE) is a cell surface b<strong>in</strong>d<strong>in</strong>g site for Aβ. We will <strong>in</strong>vestigate the effects<br />
<strong>of</strong> oligomeric Aβ on synaptic transmission and efficacy <strong>in</strong> EC slices: i) <strong>in</strong><br />
the presence <strong>of</strong> anti-RAGE antibodies, ii) <strong>in</strong> the transgenic (Tg) mice with<br />
targeted neuronal expression <strong>of</strong> the wild type form <strong>of</strong> RAGE and <strong>in</strong> RAGEdeficient<br />
mice; iii) <strong>in</strong> the Tg mice with a dom<strong>in</strong>ant negative form <strong>of</strong> RAGE<br />
targeted to neurons (DN-RAGE). F<strong>in</strong>ally, we will <strong>in</strong>vestigate the<br />
<strong>in</strong>volvement <strong>of</strong> different k<strong>in</strong>ases associated with RAGE activation, such as<br />
p38 MAPK, p42-p44 MAPK and JNK.<br />
3. To test the role <strong>of</strong> neuronal RAGE <strong>in</strong> vivo us<strong>in</strong>g animal models <strong>of</strong> Aβmediated<br />
synaptic dysfunction. We will employ Tg mice overexpress<strong>in</strong>g<br />
mutant human amyloid precursor prote<strong>in</strong> (mAPP); Aβ-rich environment <strong>in</strong><br />
Tg mAPP mice <strong>in</strong>duces synaptic dysfunction. We expect that synaptic<br />
dysfunction observed <strong>in</strong> Tg mAPP mice does not occur <strong>in</strong> Tg mAPP mice<br />
crossed with Tg DN-RAGE mice. F<strong>in</strong>ally, we will determ<strong>in</strong>e whether
<strong>in</strong>creased expression <strong>of</strong> neuronal RAGE <strong>in</strong> Tg mAPP mice exaggerates<br />
synaptic dysfunction.<br />
2. Abstract Project Regione Toscana.<br />
Alzheimer’s disease (AD) is a progressive neurodegenerative disorder <strong>of</strong><br />
the elderly characterized by senile plaques composed <strong>of</strong> beta amyloid<br />
(Aβ), neur<strong>of</strong>ibrillary tangles, synaptic loss and impairment <strong>of</strong> cognitive<br />
functions. AD is the most common cause <strong>of</strong> dementia followed by<br />
vascular dementia (VaD). The <strong>in</strong>cidence <strong>of</strong> neurodegenerative disorders <strong>in</strong><br />
AD is <strong>in</strong>creased by vascular pathologies such as stroke, clogg<strong>in</strong>g arteries<br />
and hypertension <strong>in</strong>duc<strong>in</strong>g bra<strong>in</strong> hypoperfusion and hypoxia. However, a<br />
causal relationship between AD and bra<strong>in</strong> ischemia at the molecular level<br />
has not been established. The present project will contribute to elucidate<br />
whether Aβ/RAGE signall<strong>in</strong>g may be viewed as part <strong>of</strong> a neural system<br />
that controls synaptic responses <strong>in</strong> vascular pathology and AD. We are<br />
<strong>in</strong>terested <strong>in</strong> <strong>in</strong>vestigat<strong>in</strong>g this issue as many patients with AD also have<br />
hypertension and vascular <strong>in</strong>farctions. Design<strong>in</strong>g new biomarkers <strong>of</strong><br />
neurodegeneration and <strong>in</strong>terfer<strong>in</strong>g with Aβ/RAGE signall<strong>in</strong>g is expected to<br />
have high impact to ameliorate cellular dysfunction <strong>in</strong> AD and vascular<br />
pathology. Patentability <strong>of</strong> a new diagnostic method <strong>of</strong> AD based on<br />
biomarkers associated with RAGE activation and deposition <strong>of</strong> Aβ<br />
represents the goal <strong>of</strong> our plan.
Nome Evel<strong>in</strong>a Chieregatti<br />
Contatti evel<strong>in</strong>a.chieregatti@iit.it<br />
Istituto/Dipartimento Dept. <strong>of</strong> Neuroscience and Bra<strong>in</strong> Technologies, IIT, Genoa, Italy<br />
Proposta di ricerca<br />
Synaptic deficits <strong>in</strong> neurodegenerative diseases<br />
The ma<strong>in</strong> l<strong>in</strong>es <strong>of</strong> our <strong>research</strong> concern the <strong>in</strong>vestigation <strong>of</strong> the early mechanisms underly<strong>in</strong>g synaptic<br />
dysfunctions <strong>in</strong> Park<strong>in</strong>son’s and Alzheimer diseases. These neurodegenerative diseases are characterized<br />
by the deposition <strong>of</strong> prote<strong>in</strong>acious aggregates <strong>in</strong> the neurons and <strong>in</strong> the bra<strong>in</strong> tissue.<br />
However it has been shown that most neurons that undergo cell death do not conta<strong>in</strong> aggregates and<br />
that, whether they conta<strong>in</strong> aggregates or not, are similarly affected by morphological dendritic<br />
abnormalities or biochemical changes. It may thus be conceivable that, rather than be<strong>in</strong>g caused by the<br />
accumulation <strong>of</strong> aggregates with neuronal cell bodies, which could be an epiphenomenon,<br />
neurodegenerative diseases may be characterized by dy<strong>in</strong>g back mechanisms that beg<strong>in</strong> at the synapse<br />
and lead to axonal degeneration. Both β amyloid (Aβ) and α-synucle<strong>in</strong> (Syn) are pathogenetic prote<strong>in</strong>s that<br />
upon mutations or <strong>in</strong>crease <strong>in</strong> their levels may <strong>in</strong>duce alterations <strong>in</strong> the synaptic function and neuronal cell<br />
death. A key element <strong>in</strong> the regulation <strong>of</strong> neurotransmitter release and <strong>in</strong> the f<strong>in</strong>e tun<strong>in</strong>g <strong>of</strong> synaptic<br />
efficacy is the neuronal cytoskeleton. Both prote<strong>in</strong>s are implicated <strong>in</strong> act<strong>in</strong> dynamics as well as microtubule<br />
stability through their <strong>in</strong>teractions with a microtubule-b<strong>in</strong>d<strong>in</strong>g prote<strong>in</strong>, tau. We recently demonstrated a<br />
disrupt<strong>in</strong>g effect <strong>of</strong> the mutated form <strong>of</strong> Syn on act<strong>in</strong> dynamics <strong>in</strong> neurons. We are study<strong>in</strong>g their effects<br />
on the morphology and dynamics <strong>of</strong> act<strong>in</strong> micr<strong>of</strong>ilaments and <strong>in</strong>termediate filaments by the use <strong>of</strong> purified<br />
prote<strong>in</strong>s and neurons derived from knock-out and transgenic mice. The long term goal <strong>of</strong> this project is to<br />
<strong>in</strong>vestigate the effect <strong>of</strong> the two prote<strong>in</strong>s on cytoskeletal-regulated processes, such as polarization,<br />
regeneration after axotomy and neuronal plasticity. Another project concerns the characterization <strong>of</strong> the<br />
molecular <strong>in</strong>teractors <strong>of</strong> Syn that may have a role <strong>in</strong> neurodegeneration associated with αsynucleopathies.<br />
The <strong>in</strong>tracellular localization <strong>of</strong> the cleavage <strong>of</strong> APP by BACE1 has long been a topic <strong>of</strong> debate. Early<br />
endosome is the first site <strong>of</strong> APP endocytic sort<strong>in</strong>g, where APP has been shown to co-localize with BACE1.<br />
Altered endosomal structures have been found <strong>in</strong> AD bra<strong>in</strong>s. Our aim is to identify prote<strong>in</strong>s <strong>of</strong> <strong>in</strong>terest such<br />
as enzymes or molecular motors that may be found <strong>in</strong> the APP-conta<strong>in</strong><strong>in</strong>g endocytic vesicles.<br />
It is expected that the results will shed light on the role <strong>of</strong> Syn and Aβ <strong>in</strong> synaptic function, and on the<br />
molecular <strong>in</strong>teractors mediat<strong>in</strong>g their effect, provid<strong>in</strong>g cues useful to reach appropriate therapeutic<br />
endpo<strong>in</strong>ts based on the modulation <strong>of</strong> the signall<strong>in</strong>g pathways <strong>in</strong>volved <strong>in</strong> the pathogenic effect <strong>of</strong> Syn and<br />
Aβ.<br />
Area di <strong>in</strong>teresse identificata<br />
F<strong>in</strong>anziamenti ricevuti<br />
Macromolecular <strong>in</strong>teractions and Neurodegeneration<br />
Titolo progetto<br />
The role <strong>of</strong> <strong>in</strong>traneuronal amyloid β(Aβ) peptide on the pathogenesis <strong>of</strong><br />
the Alzheimer disease: functional and proteomic analysis.<br />
Ente f<strong>in</strong>anziatore Fondazione CARIPLO – role: Partner<br />
Durata progetto 2 years (end 2009)<br />
Abstract del progetto Alzheimer disease (AD), one <strong>of</strong> the neurodegenerative diseases <strong>of</strong> the<br />
nervous system characterized by a chronic process <strong>of</strong> cell death, is the<br />
most frequent form <strong>of</strong> dementia, but there is still no therapeutic<br />
<strong>in</strong>tervention capable <strong>of</strong> prevent<strong>in</strong>g, delay<strong>in</strong>g or treat<strong>in</strong>g it. Intraneuronal<br />
Aβ accumulation precedes the deposition <strong>of</strong> amyloid plaques and the
Titolo progetto<br />
appearance <strong>of</strong> neur<strong>of</strong>ibrillary tangles, and correlate with the first<br />
appearance <strong>of</strong> cognitive deficits. The role <strong>of</strong> <strong>in</strong>traneuronal Aβ <strong>in</strong> the AD<br />
pathogenesis is still unclear, but recent data suggest a possible<br />
<strong>in</strong>volvement <strong>in</strong> cytoskeletal functions and neurotransmitter release. The<br />
goal <strong>of</strong> this project is to understand how Aβ may <strong>in</strong>terfere with synaptic<br />
function and, by the use <strong>of</strong> advanced proteomic techniques, to identify<br />
the prote<strong>in</strong>s that <strong>in</strong>teract with Aβ. The results we expect to obta<strong>in</strong> will<br />
shed light on the pathogenetic mechanisms <strong>in</strong> AD and will allow the<br />
development <strong>of</strong> advanced diagnostic and therapeutic protocols.<br />
Pathogenetic mechanisms <strong>of</strong> familial Park<strong>in</strong>son’s disease: wt and A30P<br />
α-synucle<strong>in</strong>s affect the structure <strong>of</strong> micr<strong>of</strong>ilaments and <strong>in</strong>termediate<br />
filaments. Pathways and effects on cytoskeletal dynamics.<br />
Ente f<strong>in</strong>anziatore Telethon-Italy – role: PI<br />
Durata progetto 3 years (end 2013)<br />
Abstract del progetto Overall objectives. To understand a physiological role <strong>of</strong> alpha-synucle<strong>in</strong><br />
(Syn) and its role <strong>in</strong> the pathology <strong>of</strong> Park<strong>in</strong>son's disease (PD) by<br />
comparative studies <strong>of</strong> wt and A30P Syn mutant <strong>in</strong>teraction with<br />
micr<strong>of</strong>ilaments and <strong>in</strong>termediate filaments. To understand Syn role <strong>in</strong><br />
cellular processes that require active remodel<strong>in</strong>g <strong>of</strong> these two<br />
cytoskeletal elements.<br />
Specific aims. Analysis <strong>of</strong> the regulation <strong>of</strong> act<strong>in</strong>-Syn <strong>in</strong>teraction <strong>in</strong> liv<strong>in</strong>g<br />
cells by fluorescence energy transfer (FRET). Analysis <strong>of</strong> the composition<br />
<strong>of</strong> act<strong>in</strong>/A30P Syn aggregates formed dur<strong>in</strong>g cytoskeleton remodel<strong>in</strong>g.<br />
Analysis <strong>of</strong> Syn effects on <strong>in</strong>termediate filaments turnover and on<br />
neuronal regeneration after axotomy. Investigation <strong>of</strong> the pathway(s)<br />
that mediates the effect <strong>of</strong> extracellular Syn on act<strong>in</strong> cytoskeleton<br />
morphology.<br />
Background. Mutations <strong>in</strong> the Syn gene are responsible for familial PD.<br />
Syn knock-out mice suggest a role <strong>of</strong> Syn <strong>in</strong> the regulation <strong>of</strong> the presynaptic<br />
vesicular pools <strong>in</strong> neurons. Syn has been <strong>in</strong>volved <strong>in</strong> neuronal<br />
regeneration occurr<strong>in</strong>g dur<strong>in</strong>g differentiation and repair. Interest<strong>in</strong>gly,<br />
act<strong>in</strong> micr<strong>of</strong>ilaments and the <strong>in</strong>termediate filaments are actively <strong>in</strong>volved<br />
<strong>in</strong> every one <strong>of</strong> these processes.<br />
Description <strong>of</strong> the project. Based on our data demonstrat<strong>in</strong>g <strong>in</strong>teraction<br />
between Syn and act<strong>in</strong> we propose to study the regulation and the<br />
subcellular localization <strong>of</strong> their <strong>in</strong>teraction by FRET. In neurons <strong>in</strong> culture<br />
from knock-out and from conditional transgenic mice we plan to<br />
<strong>in</strong>vestigate the role <strong>of</strong> Syn <strong>in</strong> regeneration after axonal <strong>in</strong>jury. We<br />
propose to <strong>in</strong>vestigate the transduction pathway that is activated by<br />
extracellular Syn.<br />
Anticipated output. We expect to identify the specific step at which Syn<br />
function at the pre-synapse and the possible loss <strong>of</strong> function <strong>of</strong> the A30P<br />
Syn mutant. These results will be <strong>of</strong> great relevance <strong>in</strong> the understand<strong>in</strong>g<br />
<strong>of</strong> PD pathogenesis.
1. MECHANISMS OF NEURODEGENERATION<br />
H- Intracellular Traffik<strong>in</strong>g
Nome Cecilia Bucci<br />
Contatti<br />
Tel. +39-0832-298900; Fax +39-0832-298626<br />
e-mail: cecilia.bucci@unisalento.it<br />
Istituto/Dipartimento Department <strong>of</strong> Biological and Envirnmental Sciences and Technologies<br />
(DiSTeBA), University <strong>of</strong> Salento<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse identificata Membrane traffic and neurodegenerative diseases: role <strong>of</strong> Rab prote<strong>in</strong>s<br />
and their effectors<br />
The laboratory <strong>of</strong> Applied Biology directed by Cecilia Bucci is focused on<br />
the role <strong>of</strong> endocytic Rab prote<strong>in</strong>s. Rab prote<strong>in</strong>s are small GTPases that<br />
control membrane traffic <strong>in</strong> the endocytic and exocytic pathways. Indeed,<br />
they are responsible, through the recruitment <strong>of</strong> several specific<br />
effectors, for several aspects <strong>of</strong> membrane transport as vesicle formation,<br />
vesicle movement onto cytoskeletal tracks, vesicle dock<strong>in</strong>g and tether<strong>in</strong>g<br />
to the target compartment, and, f<strong>in</strong>ally, vesicle fusion with the target<br />
compartment. There are about 70 rab genes <strong>in</strong> the human genome.<br />
Alterations <strong>of</strong> membrane traffic, and, <strong>in</strong> particolar, <strong>of</strong> Rab prote<strong>in</strong>s or <strong>of</strong><br />
their effector prote<strong>in</strong>s, are responsible for many human genetic and<br />
acquired diseases <strong>in</strong>clud<strong>in</strong>g cancer. In particular, Rab dysfunction has<br />
been l<strong>in</strong>ked to several neurodegenerative diseases. For <strong>in</strong>stance<br />
mutations <strong>in</strong> Rab7 prote<strong>in</strong> cause the Charcot-Marie-Tooth type 2B<br />
disease, a <strong>in</strong>herited neuropathy <strong>of</strong> the peripheral nervous system. Late<br />
endocytic dysfunction has been demonstrated <strong>in</strong> Alzheimer’s disease and<br />
presenil<strong>in</strong> (a prote<strong>in</strong> mutated <strong>in</strong> Alzheimer) <strong>in</strong>teracts with the endocytic<br />
Rab11 and with the Rab regulatory prote<strong>in</strong> GDI (GDP-dissociation<br />
<strong>in</strong>hibitor). In addition, presenil<strong>in</strong> <strong>in</strong>fluences localization and function <strong>of</strong> at<br />
least other two Rab prote<strong>in</strong>s, Rab6 and Rab8. Rab6 expression is<br />
<strong>in</strong>creased <strong>in</strong> Alzheimer’s disease bra<strong>in</strong>. Mutations <strong>in</strong> alpha-synucle<strong>in</strong> are a<br />
cause <strong>of</strong> familial Park<strong>in</strong>son disease; mutated alphasynucle<strong>in</strong> <strong>in</strong>teracts<br />
abnormally with Rab3a, Rab5 and Rab8.<br />
These are only some examples that demonstrate the close connection<br />
between membrane traffic (and <strong>in</strong> particular Rab prote<strong>in</strong>s function) and<br />
neurodegenerative diseases.<br />
We propose therefore to study different aspects <strong>of</strong> membrane traffic at<br />
the molecular level, with a particular focus on Rab prote<strong>in</strong>s, <strong>in</strong> order to<br />
understand the molecular mechanism underly<strong>in</strong>g degenerative diseases<br />
as Alzheimer, Park<strong>in</strong>son, Charcot-Marie-Tooth, etc. In particular, we<br />
could <strong>in</strong>vestigate the role <strong>of</strong> the prote<strong>in</strong>s found mutated <strong>in</strong> these diseases<br />
(i.e. presenil<strong>in</strong>, alpha-synucle<strong>in</strong>, Rab7, etc.) <strong>in</strong> membrane traffic, and the<br />
role <strong>of</strong> their <strong>in</strong>teraction with regulators <strong>of</strong> membrane traffic.<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto Molecular basis <strong>of</strong> Charcot-Marie-Tooth type 2B disease<br />
Ente f<strong>in</strong>anziatore Telethon Italy<br />
Durata progetto 3 years (2009-2012)<br />
Abstract del progetto The <strong>in</strong>herited neuropathies <strong>of</strong> the peripheral nervous system show<br />
cl<strong>in</strong>ical and genetic heterogeneity. CharcotMarieTooth type 2B (CMT2B) is<br />
a ulceromutilat<strong>in</strong>g neuropathy cl<strong>in</strong>ically characterized by prom<strong>in</strong>ent<br />
sensory loss, marked distal muscle weakness and wast<strong>in</strong>g, high frequency<br />
<strong>of</strong> foot ulcers, <strong>in</strong>fections, and amputations <strong>of</strong> the toes because <strong>of</strong><br />
recurrent <strong>in</strong>fections. Four missense mutations <strong>in</strong> the small GTPase late<br />
endosomal prote<strong>in</strong> Rab7 have been identified <strong>in</strong> autosomal dom<strong>in</strong>ant
ulceromutilat<strong>in</strong>g neuropathy families. These missense mutations cause<br />
the CMT2B phenotype and target highly conserved am<strong>in</strong>o acid residues. It<br />
is not known how these mutations affect specifically peripheral neurons<br />
lead<strong>in</strong>g to an axonal pathology <strong>in</strong> CMT2B. This issue is particularly<br />
challeng<strong>in</strong>g consider<strong>in</strong>g that Rab7 is a ubiquitous prote<strong>in</strong>. This proposal<br />
plans to cont<strong>in</strong>ue <strong>in</strong>vestigat<strong>in</strong>g the<br />
molecular mechanism responsible for the development <strong>of</strong> the disease.<br />
We have previously biochemically characterized the Rab7 mutated<br />
prote<strong>in</strong>s causative <strong>of</strong> CMT2B <strong>in</strong> HeLa cells, determ<strong>in</strong><strong>in</strong>g that they are<br />
mechanistically similar. Indeed, we have demonstrated that activated<br />
forms <strong>of</strong> Rab7 are responsible for the disease.With<strong>in</strong> this project we plan<br />
to:<br />
i) do functional studies us<strong>in</strong>g the mutated prote<strong>in</strong>s on PC12, SH−SY5Y,<br />
Neuro2a cells and neurons ii) screen DRG and motor neuron cDNA<br />
libraries with different methods to search for new Rab7 <strong>in</strong>teract<strong>in</strong>g<br />
prote<strong>in</strong>s, look<strong>in</strong>g <strong>in</strong> particular at effectors expressed specifically <strong>in</strong> the<br />
peripheral nervous system. iii) do functional assays to establish the role <strong>of</strong><br />
these newly identified Rab7 <strong>in</strong>teract<strong>in</strong>g prote<strong>in</strong>s and to establish if and<br />
how Rab7 mutations affect their function. Understand<strong>in</strong>g how<br />
dysfunction <strong>of</strong> Rab7 causes CMT2B will be <strong>in</strong>strumental to ga<strong>in</strong> <strong>in</strong>sights <strong>in</strong><br />
the pathogenesis <strong>of</strong> this group <strong>of</strong> disorders, and will open the way to<br />
future identification <strong>of</strong> therapeutic approaches.
Nome Pr<strong>of</strong>. Paolo Macchi, PhD<br />
Contatti Phone: +39 0461-883819/883095<br />
Fax: +39 0461-883937<br />
Email: macchi@science.unitn.it<br />
Istituto/Dipartimento Molecular and Cellular Neurobiology Lab<br />
CIBIO – Centre for Integrative Biology, University <strong>of</strong> Trento.<br />
Via delle Regole 101<br />
3060 Mattarello, Trento – Italy<br />
WEB: http://www.unitn.it/cibio<br />
Research proposal<br />
“Comparative analysis <strong>of</strong> the transport and translational RNPs complexes <strong>in</strong> neurons: an <strong>in</strong>tegrate<br />
transcript- and proteomic approach.”<br />
RNA localization is emerg<strong>in</strong>g as an important process to restrict certa<strong>in</strong> prote<strong>in</strong>s to specific subcellular<br />
doma<strong>in</strong>s and thus spatially control the expression <strong>of</strong> genes with<strong>in</strong> cells. One key feature <strong>of</strong> messenger RNA<br />
(mRNA) localization is that it precedes translation. As a consequence, mRNA has to be kept translationally<br />
silent dur<strong>in</strong>g its transport towards the proper target compartment. Localized mRNAs are packaged <strong>in</strong>to<br />
ribonucleoprote<strong>in</strong> particles (RNPs), composed <strong>of</strong> RNAs and prote<strong>in</strong>s. The localized RNAs conta<strong>in</strong> specific<br />
cis-act<strong>in</strong>g sequence elements, which are recognized by prote<strong>in</strong>s, called trans-act<strong>in</strong>g factors. The<br />
importance <strong>of</strong> RNA subcellular localization <strong>in</strong> the formation and function <strong>of</strong> the nervous system is also<br />
ga<strong>in</strong><strong>in</strong>g <strong>in</strong>creas<strong>in</strong>g acceptance. In highly polarized cells, such as <strong>in</strong> neurons, a functional<br />
compartmentalization is crucial. RNA localization is not only <strong>in</strong>volved <strong>in</strong> establish<strong>in</strong>g the structural polarity<br />
<strong>of</strong> neurons, but is also assumed to play an important role <strong>in</strong> synaptic plasticity 1 . It has been estimated that<br />
approximately 200 different mRNAs encod<strong>in</strong>g for prote<strong>in</strong>s important for synaptic plasticity as well as<br />
various housekeep<strong>in</strong>g genes, are found <strong>in</strong> dendrites <strong>of</strong> hippocampal neurons 2 . Interest<strong>in</strong>gly, the loss-<strong>of</strong>function<br />
<strong>of</strong> one component <strong>of</strong> the RNA transport mach<strong>in</strong>ery and/or the misexpression <strong>of</strong> specific mRNAs<br />
causes abnormalities dur<strong>in</strong>g neuronal development. For example, defects <strong>in</strong> axonal and dendritic<br />
outgrowth and/or <strong>in</strong> dendritic sp<strong>in</strong>e development have been described. These phenotypes have recently<br />
been correlated with different neurological disorders, such as FXS (fragile X mental retardation syndrome),<br />
SCA (sp<strong>in</strong>ocerebellar ataxia) and SMA (sp<strong>in</strong>al muscular atrophy) 3 . However, the composition <strong>of</strong> the<br />
transport as well as the translation control mach<strong>in</strong>ery is still poorly characterized. Our <strong>research</strong> focuses on<br />
dissect<strong>in</strong>g the molecular composition <strong>of</strong> the neuronal transport RNPs under physiological as well as<br />
pathological conditions (e.g. neurodegeneration, bra<strong>in</strong> tumours and epilepsy).<br />
In detail, we are try<strong>in</strong>g to answer the follow<strong>in</strong>g biological questions:<br />
1 Is the local prote<strong>in</strong> synthesis and/or mRNA traffick<strong>in</strong>g altered <strong>in</strong> neurons undergo<strong>in</strong>g degeneration?<br />
2 What is the molecular composition <strong>of</strong> the neuronal RNPs (RNA and prote<strong>in</strong> <strong>in</strong>teractome) <strong>in</strong> neurons<br />
affected by degeneration compared to normal cells?<br />
The goal <strong>of</strong> purify<strong>in</strong>g transport RNPs to identify novel components has been previously attempted, but has<br />
not yielded the precise mechanistic details <strong>of</strong> the process that are sought. Our laboratory has successfully<br />
demonstrated the feasibility <strong>of</strong> ma<strong>in</strong>ta<strong>in</strong><strong>in</strong>g endogenous transport complexes conta<strong>in</strong><strong>in</strong>g Staufen, Barentsz<br />
and Pumilio prote<strong>in</strong>s, RNA (RIP-chip analysis), and motor prote<strong>in</strong>s <strong>in</strong> cell-free extracts <strong>of</strong> bra<strong>in</strong>s and<br />
cultured neurons 4,5 . Us<strong>in</strong>g our collection <strong>of</strong> aff<strong>in</strong>ity-purified antibodies to immunoprecipitate localization<br />
RNPs from bra<strong>in</strong> extract fractions, the composition <strong>of</strong> RNPs isolated from wild type mice will be assessed<br />
and compared with RNPs isolated from animal model for neurological diseases. We will then test the<br />
<strong>in</strong>dividual functions <strong>of</strong> both known (or suspected) and novel identified components <strong>of</strong> neuronal RNPs <strong>in</strong> a
variety <strong>of</strong> <strong>in</strong> vivo and <strong>in</strong> vitro assays to characterize their roles <strong>in</strong> localization and associated mechanisms.<br />
F<strong>in</strong>ally, s<strong>in</strong>ce the activation <strong>of</strong> translation <strong>of</strong> dendritically localized mRNAs upon specific <strong>in</strong>puts, such as<br />
synaptic activity, allows for the modulation <strong>of</strong> exist<strong>in</strong>g synapses, notably the morphological and functional<br />
chang<strong>in</strong>g <strong>of</strong> dendritic sp<strong>in</strong>es,<br />
3 Are there possible drugs able to affect mRNA target<strong>in</strong>g (and/or turnover) and local prote<strong>in</strong> synthesis<br />
that can be used to block neurodegeneration?<br />
We are currently sett<strong>in</strong>g up a high throughput drug screen<strong>in</strong>g assay on neuronal cells at CIBIO (University<br />
<strong>of</strong> Trento). RIP-Chip experiments will be functional for the development <strong>of</strong> pharmacological assays where<br />
the level <strong>of</strong> expression <strong>of</strong> mRNAs identified will be evaluated through the use <strong>of</strong> a reporter prote<strong>in</strong><br />
(luciferase). Through a biolum<strong>in</strong>escence assay we will be able to quantify the effect <strong>of</strong> each chemical's<br />
<strong>in</strong>hibitory activity or promoter <strong>of</strong> the complex prote<strong>in</strong>s/ mRNA-luciferase.<br />
We propose that a multidiscipl<strong>in</strong>ary study to underl<strong>in</strong>e the mechanisms that lead to correct regulation <strong>of</strong><br />
both RNA and RNA-b<strong>in</strong>d<strong>in</strong>g prote<strong>in</strong>s will be crucial for a better understand<strong>in</strong>g <strong>of</strong> the pathogenesis <strong>of</strong><br />
neuronal diseases. Interdiscipl<strong>in</strong>ary <strong>in</strong>ternal collaborations, with other <strong>in</strong>stitutions <strong>in</strong> Italy and abroad have<br />
been already established to take full advantage <strong>of</strong> different experimental systems and areas <strong>of</strong> expertise.<br />
1. Kuhl D. & Skehel P. (1998) Curr. Op<strong>in</strong>. Neurobiol. 8, 600-606.<br />
2. Job C. & Eberw<strong>in</strong>e J. (2001) Nat. Rev. Neuroscie. 2, 889-898.<br />
3. Dahm R. & Macchi P. (2007). Biol. Cell 99, 649-61.<br />
4. Mallardo M. et al., (2003). PNAS 100, 2100-2105<br />
5. Vessey J. et al., (2010). PNAS 107, 3222-3227<br />
Area di <strong>in</strong>teresse identificata Basic <strong>research</strong>. <strong>Neurodegenerative</strong> diseases.<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto Electrophysiological characterization <strong>of</strong> alpha-synucle<strong>in</strong> form<strong>in</strong>g channels,<br />
a prote<strong>in</strong> <strong>in</strong>volved <strong>in</strong> the neurodegeneration <strong>of</strong> Park<strong>in</strong>son's disease<br />
Ente f<strong>in</strong>anziatore CARITRO Foundation<br />
Durata progetto 2 years<br />
Abstract del progetto The aggregation <strong>of</strong> aberrant prote<strong>in</strong>s is <strong>in</strong>volved <strong>in</strong> the pathogenesis <strong>of</strong><br />
neurodegenerative diseases associated with ag<strong>in</strong>g but the mechanisms<br />
lead<strong>in</strong>g to neuronal death are unknown. The α-synucle<strong>in</strong> (αS) is the ma<strong>in</strong><br />
component <strong>of</strong> Lewy bodies, namely fibrillar <strong>in</strong>traneuronal <strong>in</strong>clusions<br />
present <strong>in</strong> all patients with Park<strong>in</strong>son's disease (PD), and is strongly<br />
<strong>in</strong>dicated as the cause <strong>of</strong> the disease. The αS is not structured <strong>in</strong> a<br />
"native" form while <strong>in</strong> vitro form amyloid fibrils that are rich <strong>in</strong> beta<br />
sheet. Nell'αS mutations found <strong>in</strong> patients with PD promote the<br />
formation <strong>of</strong> annular and tubular structures <strong>of</strong> prot<strong>of</strong>ibrille. The<br />
prot<strong>of</strong>ibrille <strong>of</strong> αS, but not the monomer or mature fibrils, b<strong>in</strong>d to<br />
structures such as lipid vesicles, planar and cellular membranes. Here,<br />
they assume a new structural conformation similar to the pores formed<br />
by the bacterial tox<strong>in</strong>s that cross the membrane. These "amyloid pores"<br />
may be the cause <strong>of</strong> neuronal death, through an uncontrolled and<br />
nonspecific permeabilization <strong>of</strong> the cell membrane. We <strong>in</strong>tend to<br />
<strong>in</strong>vestigate <strong>in</strong> detail the electrophysiological characteristics <strong>of</strong> the pores<br />
<strong>of</strong> αS formed <strong>in</strong> model systems <strong>of</strong> <strong>in</strong>creas<strong>in</strong>g complexity: <strong>in</strong> lipid planar<br />
membranes, synaptic vesicles from liposomes and/or mitochondria and<br />
eventually <strong>in</strong> cultured neurons. In particular an <strong>in</strong>novative analysis<br />
technique suitable for noise characterization <strong>of</strong> pores will be developed.<br />
We <strong>in</strong>tend to <strong>in</strong>vestigate, with techniques <strong>of</strong> analysis <strong>of</strong> noise, EEG from
healthy patients with PD and to highlight similarities with anomalies<br />
recorded <strong>in</strong> s<strong>in</strong>gle cells. We believe that this multidiscipl<strong>in</strong>ary approach<br />
will allow 'early diagnosis and more precise onset and evolution <strong>of</strong> PD as<br />
well as <strong>of</strong> other neurodegenerative diseases.
1. MECHANISMS OF NEURODEGENERATION<br />
I- Animal models
Nome Adalberto MERIGHI<br />
Contatti<br />
Phone:++390116709118<br />
Fax: ++390112369118<br />
e-mail: adalberto.merighi@unito.it<br />
Istituto/Dipartimento Istituto Nazionale di Neuroscienze e Dipartimento di Morf<strong>of</strong>isiologia<br />
Veter<strong>in</strong>aria, università degli Studi di Tor<strong>in</strong>o<br />
Via Leonardo da V<strong>in</strong>ci 44<br />
I-10095 GRUGLIASCO (TO) Italy<br />
Proposta di ricerca<br />
Effects <strong>of</strong> over-expression <strong>of</strong> the anti-apoptotic prote<strong>in</strong>s BCL-2 and surviv<strong>in</strong> on the endoplasmic<br />
reticulum stress <strong>in</strong>duced by β amyloid: study <strong>of</strong> neuroprotection on animal models<br />
Area di <strong>in</strong>teresse identificata Basic <strong>research</strong><br />
Develop<strong>in</strong>g competitive animal models to study Alzheimer’s disease<br />
The etiology and mechanisms responsible for neurodegeneration <strong>in</strong> Alzheimer’s disease (AD) are<br />
multifaceted, but recent studies <strong>in</strong>dicate that activation <strong>of</strong> an <strong>in</strong>tr<strong>in</strong>sic gene-regulated program <strong>of</strong> cell<br />
death (PCD = programmed cell death) is a common end-po<strong>in</strong>t <strong>of</strong> the various <strong>in</strong>tracellular pathways lead<strong>in</strong>g<br />
to neuronal loss. Multiple <strong>in</strong>tracellular pathways activated dur<strong>in</strong>g PCD, but, among them, apoptosis plays a<br />
major role. The post-natal cerebellar cortex is an ideal model for the study <strong>of</strong> PCD, because <strong>of</strong> the massive<br />
apoptosis <strong>of</strong> the granule cells, a population <strong>of</strong> cerebellar excitatory <strong>in</strong>terneurons formed by billions <strong>of</strong> cells<br />
(see for example Lossi L. and Merighi A. Prog Neurobiol. 2003. 69:287-312). β-amyloid (Aβ) is directly<br />
<strong>in</strong>volved <strong>in</strong> neurodegeneration observed <strong>in</strong> AD, where neurodegenerative changes are due, at least <strong>in</strong> part,<br />
to activation <strong>of</strong> an apoptotic programme (see for example Wisniewski T. Neurobiol Dis. 1997. 4:313-28). In<br />
primary cortical neuron cultures, the toxic effects <strong>of</strong> synthetic peptides correspond<strong>in</strong>g to specific<br />
sequences <strong>of</strong> Aβ have been shown to be consequent to release <strong>of</strong> calcium across ryanod<strong>in</strong>e receptor (RyR)<br />
channels and/or <strong>in</strong>ositol-3-phosphate channels (IP3) on the membrane <strong>of</strong> the endoplasmic reticulum<br />
(Ferreiro E. Neurobiol Dis. 2006. 23:669-78). We have recently demonstrated that the block <strong>of</strong> RyR<br />
channels <strong>in</strong> organotypic cultures obta<strong>in</strong>ed from mouse cerebellum <strong>in</strong>terferes with the <strong>in</strong>crease <strong>in</strong> density<br />
<strong>of</strong> cerebellar granule cells express<strong>in</strong>g the BCL-2 prote<strong>in</strong> (one <strong>of</strong> the most widely characterized antiapoptotic<br />
factors <strong>in</strong> Eukaryotic cells) fused with a fluorescent reporter marker (EYFP = enhanced yellow<br />
fluorescent prote<strong>in</strong>) after KCl depolarization (Lossi et al. Dev Neurobiol. 2009. 69:855-870). These<br />
observations suggest that BCL-2 could modulate the apoptotic program triggered by Aβ as a consequence<br />
<strong>of</strong> endoplasmic reticulum stress.<br />
Surviv<strong>in</strong> is one member <strong>of</strong> a family <strong>of</strong> prote<strong>in</strong>s commonly referred to as apoptosis <strong>in</strong>hibit<strong>in</strong>g prote<strong>in</strong>s. It is<br />
expressed dur<strong>in</strong>g mitosis, and <strong>in</strong> tumors, but also dur<strong>in</strong>g normal development <strong>of</strong> neurons <strong>in</strong> vivo, as<br />
demonstrated <strong>in</strong> conditional transgenic mice us<strong>in</strong>g the Cre-loxP technology (Jiang Y. et al. J Neurosci. 2005.<br />
25:6962-70). In these animals the conditional deletion <strong>of</strong> the surviv<strong>in</strong> gene at P10.5 leads to massive<br />
apoptosis <strong>in</strong> several areas <strong>of</strong> the central nervous system. As a consequence, newborn mutants display a<br />
marked reduction <strong>of</strong> bra<strong>in</strong> size, with severe multifocal apoptosis affect<strong>in</strong>g the cerebral and cerebellar<br />
cortices, the bra<strong>in</strong>stem , the sp<strong>in</strong>al cord and the ret<strong>in</strong>a. Caspase 3 and 9 (the ma<strong>in</strong> effector molecules <strong>of</strong><br />
apoptosis)activities are <strong>in</strong>creased, whereas expression <strong>of</strong> the anti-apoptotic prote<strong>in</strong> BAX is unaltered.<br />
This project consists <strong>of</strong> two phases carried out <strong>in</strong> sequence. The first phase will consist <strong>of</strong>:<br />
- Pharmacological manipulation <strong>of</strong> organotypic cultures by addition to culture medium <strong>of</strong> Aβ peptide<br />
fragments;<br />
- Qualitative and quantitative evaluation <strong>of</strong> the effects the fragments after label<strong>in</strong>g <strong>of</strong> live/dead cells by
fluorescent probes (Syto10/Dead Red, Invitrogen, USA or iodidium propide);<br />
- Immunocytochemical analysis <strong>of</strong> apoptosis with special reference to activation <strong>of</strong> caspases/PARP1 and<br />
cell cycle pathways (ret<strong>in</strong>oblastoma prote<strong>in</strong>, chk1, cdc2)<br />
- Analysis <strong>of</strong> relationship between proliferation and apoptosis follow<strong>in</strong>g visualization <strong>of</strong> proliferat<strong>in</strong>g cells<br />
with immun<strong>of</strong>luorescence (H3 histone, BrdU) and apoptotic cells with the TUNEL technique. In parallel<br />
cleavage <strong>of</strong> apoptosis related prote<strong>in</strong>s will be analyzed by Western blott<strong>in</strong>g.<br />
The second phase <strong>of</strong> the project will consist <strong>of</strong>:<br />
- Evaluation <strong>of</strong> the effects <strong>of</strong> Aβ after biolistic transfection <strong>of</strong> cultures with the follow<strong>in</strong>g vectors: ApoAlert<br />
Caspase 3 sensor (Clontech, USA) to monitor the activation <strong>of</strong> caspase 3 <strong>in</strong> alive cells; pEYFP-N1 (Clontech,<br />
USA) with <strong>in</strong>sertion <strong>of</strong> the cDNA for human BCL-2; pHcRed-C1 (Clontech, USA) with <strong>in</strong>sertion <strong>of</strong> the cDNa<br />
for surviv<strong>in</strong> (Obta<strong>in</strong>ed from Dr. Rachel Altura, Ohio, USA);<br />
- Analysis <strong>of</strong> apoptosis and cell cycle k<strong>in</strong>etics <strong>in</strong> transfected cells transfection (as for control cultures<br />
above);<br />
- Analysis <strong>of</strong> cell calcium dynamics by real time calcium imag<strong>in</strong>g.<br />
Specific experimental procedures<br />
Gene gun technology: We will employ a biolistic transfection procedure (gene gun) to artificially <strong>in</strong>troduce<br />
one or more genes <strong>of</strong> <strong>in</strong>terest <strong>in</strong> tissue slices. The procedure <strong>in</strong>volves shoot<strong>in</strong>g <strong>of</strong> slices with gold<br />
microcarriers coated with cDNAs <strong>of</strong> different constructs encod<strong>in</strong>g for molecule(s) under study and for a<br />
reporter prote<strong>in</strong> (GFP/EYFP/DsRed). Gold microcarriers will be accelerated <strong>in</strong>to tissue by a helium blast<br />
(180 psi) so that they will penetrate cell membranes and reach the cytoplasm <strong>of</strong> target cells. Transfection<br />
will be performed after 2-5 days <strong>in</strong> vitro, by a commercial apparatus (Helios Gene Gun System, BioRad,<br />
USA).<br />
Confocal microscopy: Control and transfected cultures will be <strong>in</strong>cubated <strong>in</strong>side a custom made microscope<br />
stage <strong>in</strong>cubator (Tokai Hit, Japan) and monitored at variable <strong>in</strong>tervals <strong>of</strong> time under a Leica SP5 laser<br />
confocal microscope. We have already verified that by this set up it will be possible to monitor the cultures<br />
for 4 days or longer under the microscope, and it will be thus possible to study short to medium term<br />
effects on apoptosis. In certa<strong>in</strong> experiments a cell permeant calcium <strong>in</strong>dicator will be used (Oregon Green<br />
Bapta 1AM, Invitrogen, USA)to monitor the <strong>in</strong>tracellular calcium concentration <strong>in</strong> <strong>in</strong>dividual neurons.<br />
Visualization <strong>of</strong> proliferat<strong>in</strong>g cells: a technique based upon <strong>in</strong>corporation <strong>of</strong> bromodeoxyurid<strong>in</strong>e (BrdU)<br />
dur<strong>in</strong>g S phase will be used by add<strong>in</strong>g BrdU directly to culture medium. M and G2 phase cells will be<br />
labeled by immunocytochemistry us<strong>in</strong>g a primary antibody directed aga<strong>in</strong>st phosphorylated H3 histone.<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Effects <strong>of</strong> over-expression <strong>of</strong> the anti-apoptotic prote<strong>in</strong>s BCL-2 and<br />
surviv<strong>in</strong> on the endoplasmic reticulum stress <strong>in</strong>duced by prion prote<strong>in</strong><br />
and βamyloid: study <strong>of</strong> neuroprotection on animal models<br />
Ente f<strong>in</strong>anziatore MIUR PRIN 2007 (to Laura Lossi)<br />
Durata progetto 24 mesi
Abstract del progetto Several neurodegenerative diseases are characterized by an <strong>in</strong>itial<br />
endoplasmic reticulum stress followed by the activation <strong>of</strong> an apoptotic<br />
program lead<strong>in</strong>g to cell death and neuronal loss.<br />
The two ma<strong>in</strong> goals <strong>of</strong> this project are:<br />
- analysis <strong>of</strong> apoptosis <strong>in</strong>duced by prion prote<strong>in</strong> (PrP) e da β-amyloid (Aβ)<br />
<strong>in</strong> an ex vivo model consist<strong>in</strong>g <strong>of</strong> mur<strong>in</strong>e organotypic cerebellar cultures<br />
obta<strong>in</strong>ed from P7-P20 mice. This developmental stage has been proved to<br />
be particularly suitable to our purposes s<strong>in</strong>ce it is characterized by a<br />
massive apoptotic neuronal death.<br />
- analysis <strong>of</strong> potentially neuroprotective effects <strong>of</strong> two anti-apoptotic<br />
prote<strong>in</strong>s (BCL-2 and surviv<strong>in</strong>) onto neuronal death <strong>in</strong>duced by PrP and Aβ.<br />
The project has duration <strong>of</strong> 24 months, and is organized <strong>in</strong>to two phases,<br />
each correspond<strong>in</strong>g to one <strong>of</strong> the two ma<strong>in</strong> objectives outl<strong>in</strong>ed above.<br />
We will employ a multidiscipl<strong>in</strong>ary approach consist<strong>in</strong>g <strong>of</strong> <strong>in</strong> vitro<br />
cultur<strong>in</strong>g techniques, biolistic transfection (gene-gun), confocal<br />
microscopy (medium to long term analysis <strong>of</strong> transfected cell, reat time<br />
imag<strong>in</strong>g <strong>of</strong> calcium <strong>in</strong>flux), <strong>in</strong> situ immunocytochemistry and molecular<br />
biology (immun<strong>of</strong>luorescence, label<strong>in</strong>g <strong>of</strong> proliferat<strong>in</strong>g/apoptotic cells),<br />
biochemistry (Western blott<strong>in</strong>g).<br />
All these procedure will eventually aim to obta<strong>in</strong> a direct correlation<br />
between morphological and functional data.<br />
We expect to obta<strong>in</strong> a better characterization <strong>of</strong> the basic biology <strong>of</strong> PrP<br />
and Aβ <strong>in</strong> relation to modulation <strong>of</strong> programmed cell death.<br />
Titolo progetto<br />
Development <strong>of</strong> an <strong>in</strong> vitro system to study the neuroprotective effects<br />
<strong>of</strong> ghrel<strong>in</strong> and its derivatives on central neurons<br />
Ente f<strong>in</strong>anziatore MIUR PRIN 2008<br />
Durata progetto 24 mesi<br />
Abstract del progetto Background and rationale: Ghrel<strong>in</strong> is a peptide hormone produced by the<br />
endocr<strong>in</strong>e cells <strong>of</strong> the gastric mucosa. Its most relevant biological action is<br />
the regulation <strong>of</strong> feed<strong>in</strong>g behavior <strong>in</strong> the presence <strong>of</strong> a negative energetic<br />
balance. After discovery at periphery, the hypothalamus has been<br />
identified as the ma<strong>in</strong> source <strong>of</strong> ghrel<strong>in</strong> <strong>in</strong> the central nervous system<br />
(CNS). Recent studies show that the hormone has <strong>in</strong>deed a wide range <strong>of</strong><br />
biological effects <strong>in</strong> central neurons (see Ferr<strong>in</strong>i et al. 2009, Current<br />
Neuropharmacology. 7:37). Among these, we have recently characterized<br />
the role <strong>of</strong> ghrel<strong>in</strong> <strong>in</strong> sp<strong>in</strong>al cord pa<strong>in</strong> neurotransmission (Vergnano et al.<br />
2008. Endocr<strong>in</strong>ology. 149:2306). However, data have been obta<strong>in</strong>ed <strong>in</strong><br />
support to the notion that ghrel<strong>in</strong> also plays a role <strong>in</strong> neuronal<br />
proliferation ,differentiation, protection aga<strong>in</strong>st apoptosis and<br />
ma<strong>in</strong>tenance <strong>of</strong> a differentiated status (see Chung et al. 2007.<br />
Endocr<strong>in</strong>ology. 148:148). To understand whether or not the effects <strong>of</strong><br />
ghrel<strong>in</strong> <strong>in</strong> cultured cells are <strong>in</strong>deed <strong>of</strong> relevance <strong>in</strong> vivo it is necessary to<br />
respond to the follow<strong>in</strong>g question: is the hormone produced <strong>in</strong> the<br />
stomach capable to cross the blood bra<strong>in</strong> barrier? The importance <strong>of</strong> this<br />
question appears immediately obvious if one considers that the<br />
physiological levels <strong>of</strong> ghrel<strong>in</strong> expression <strong>in</strong> CNS are relatively low.<br />
General layout and timetable <strong>of</strong> project: This is a two year project.<br />
Dur<strong>in</strong>g the first year we will first test the antiapoptotic effects <strong>of</strong> ghrel<strong>in</strong><br />
and its derivatives on organotypic cerebellar slices. Then we will develop<br />
an <strong>in</strong> vitro model based on our previous experience (postnatal cerebellar<br />
slices cultured <strong>in</strong> vitro under static conditions - see Lossi et al. 2009. Prog<br />
Neurobiol. 88:221) where the <strong>in</strong>tegrity <strong>of</strong> the blood bra<strong>in</strong> barriers is
ma<strong>in</strong>ta<strong>in</strong>ed. This model will be derived accord<strong>in</strong>g to a recently developed<br />
protocol (Bendfeldt et al. 2007. J Neurosci. 27:3260) where it was<br />
demonstrated that the cultivation <strong>of</strong> cortical slices <strong>in</strong> the presence <strong>of</strong><br />
FGF2 (basic fibroblast growth factor 2) is ideal to the preservation <strong>of</strong> the<br />
blood bra<strong>in</strong> barrier. Dur<strong>in</strong>g the second year <strong>of</strong> the project we will assess<br />
the effects <strong>of</strong> ghrel<strong>in</strong> on cell death <strong>in</strong> relation to <strong>in</strong>tegrity <strong>of</strong> the blood<br />
bra<strong>in</strong> barrier. Aims and methods: The project focuses on the study <strong>of</strong> the<br />
antiapoptotic effects <strong>of</strong> ghrel<strong>in</strong> <strong>in</strong> a widely established model <strong>of</strong><br />
developmental cell death, the post-natal cerebellar cortex. The effects <strong>of</strong><br />
the hormone will be compared <strong>in</strong> the presence/absence <strong>of</strong> the blood<br />
bra<strong>in</strong> barrier to understand whether or not peripheral ghrel<strong>in</strong> is capable<br />
to <strong>in</strong>fluence the survival <strong>of</strong> central neurons. To do so we will use a<br />
multidiscipl<strong>in</strong>ary approach consist<strong>in</strong>g <strong>of</strong> <strong>in</strong> vitro cultures, cell transfection<br />
(gene-gun), confocal microscopy (mid-to-long term analysis <strong>of</strong> cell<br />
calcium fluxes), immunocytochemistry, molecular biology <strong>in</strong> situ<br />
(immun<strong>of</strong>luorescence, label<strong>in</strong>g <strong>of</strong> proliferat<strong>in</strong>g/dead cells), and<br />
biochemistry (Western blott<strong>in</strong>g). The concurrent employment <strong>of</strong> all these<br />
procedures will allow obta<strong>in</strong><strong>in</strong>g a direct correlation between<br />
morphological and functional data. Project phases: 1. Development <strong>of</strong><br />
FGF2 stimulated cerebellar organotypic cultures and assessment <strong>of</strong><br />
<strong>in</strong>tegrity <strong>of</strong> the blood bra<strong>in</strong> barrier. 2. Pharmacological manipulation <strong>of</strong><br />
cultures with ghrel<strong>in</strong>, agonists and antagonists. 3. Analysis <strong>of</strong> cell death by<br />
means <strong>of</strong> fluorescent probes (Syto 10/Dead Red, Invitrogen, USA). 4.<br />
Immunocytochemical analysis <strong>of</strong> the molecules <strong>in</strong>volved <strong>in</strong> the apoptotic<br />
cascade (ret<strong>in</strong>oblastoma prote<strong>in</strong>, cell cycle-related k<strong>in</strong>ases chk1, cdc2), 5.<br />
Analysis <strong>of</strong> the correlation between apoptosis and cell proliferation (after<br />
label<strong>in</strong>g with fluorescent probes and/or specific markers). 6. Western<br />
blott<strong>in</strong>g <strong>of</strong> relevant prote<strong>in</strong>s to study their cleavage <strong>in</strong> the course <strong>of</strong> cell<br />
death.
Nome Monica DiLuca<br />
Contatti<br />
Universita’ degli Studi di Milano<br />
Via Balzaretti, 9<br />
02 50318374<br />
monica.diluca@unimi.it<br />
Istituto/Dipartimento CEND and Dept <strong>of</strong> Pharmacological Sciences<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse identificata<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Synaptic dysfunction <strong>in</strong> neurodegeneration: characterization <strong>of</strong> gene<br />
products <strong>in</strong> functional synaptic networks under physiologicaò and<br />
pathological conditions. This <strong>in</strong>cludes characterization <strong>of</strong> mechanisms<br />
<strong>in</strong>volved <strong>in</strong> subsynaptic target<strong>in</strong>g <strong>of</strong> prote<strong>in</strong>s and prote<strong>in</strong> complexes.<br />
These studies will allow for identificationa nd validation <strong>of</strong> targets as<br />
molecules responsible for synaptopathies us<strong>in</strong>g pharmacological<br />
approaches, siRNA, mimetic peptides and small synthetic molecules. In<br />
addition, these approaches will lead to model stages <strong>of</strong><br />
neurodegenaration <strong>in</strong> vivo by obta<strong>in</strong><strong>in</strong>g <strong>in</strong>novative animal models for<br />
Alzheimer diseases and other neurodegenerative disorders.<br />
Role <strong>of</strong> calcium dependent gene expression and prote<strong>in</strong> traffick<strong>in</strong>g <strong>in</strong><br />
shap<strong>in</strong>g post synaptic activity: implication for neurodegenerative<br />
diseases.<br />
Ente f<strong>in</strong>anziatore Cariplo foundation<br />
Durata progetto April 2009 – March 2011<br />
Abstract del progetto the ma<strong>in</strong> goal <strong>of</strong> the project is to <strong>in</strong>vestigate the l<strong>in</strong>k between<br />
dyshomeostasis <strong>of</strong> calcium signall<strong>in</strong>g and early pathogenic events <strong>of</strong> AD –<br />
both at cellular and molecular level - work<strong>in</strong>g on the hypothesis that this<br />
neurodegenerative disorder is a synaptopathy. As an addendum to this,<br />
we do not wish to focus on the role <strong>of</strong> calcium <strong>in</strong> neuronal loss but on the<br />
role <strong>of</strong> <strong>in</strong>itial small changes <strong>of</strong> calcium homeostasis <strong>in</strong> synaptic deficits, as<br />
<strong>in</strong> vivo this correlates better with early neurological disturbances and<br />
cognitive impairment.<br />
Titolo progetto Molecular mechanism and behavioural aspects <strong>in</strong> experimental models <strong>of</strong><br />
Park<strong>in</strong>son’s disease.<br />
Ente f<strong>in</strong>anziatore <strong>Italian</strong> M<strong>in</strong>ister <strong>of</strong> Health<br />
Durata progetto November 2008 – November 2010<br />
Abstract del progetto Despite abundant evidences support the role <strong>of</strong> NMDA receptor complex<br />
<strong>in</strong> Park<strong>in</strong>son’s Disease, only scattered if any <strong>in</strong>formation are available at<br />
s<strong>in</strong>gle subunit level, although this is a much-needed <strong>in</strong>formation <strong>in</strong> order<br />
to identify possible new molecular pathways that can represent a<br />
pharmacological target for the disease as well as strategies to tackle<br />
dysk<strong>in</strong>esia. Thus, specific aim <strong>of</strong> the project will be to characterize <strong>in</strong><br />
striatal neurons the molecular events responsible for the correct synaptic<br />
localization <strong>of</strong> NR2A and NR2B subunits <strong>of</strong> NMDA receptor and to study<br />
the functional consequences <strong>of</strong> such an event <strong>in</strong> experimental<br />
park<strong>in</strong>sonism and <strong>in</strong> L-DOPA <strong>in</strong>duced dysk<strong>in</strong>esia.<br />
Titolo progetto “REPLACES” - Restorative Plasticity At Corticostriatal Excitatory Synapses<br />
Ente f<strong>in</strong>anziatore EU VII Framework Programme<br />
Durata progetto November 2008- October 2012<br />
Abstract del progetto The ma<strong>in</strong> ideas underly<strong>in</strong>g this proposal is that the long-term efficacy <strong>of</strong>
new treatments for Park<strong>in</strong>son’s disease (PD) will be conditioned by their<br />
ability to restore, both structurally and functionally, the “synaptic wir<strong>in</strong>g”<br />
<strong>of</strong> striatal neurons and physiological synaptic plasticity. Accord<strong>in</strong>gly, the<br />
proposal will address the potential restorative effects <strong>of</strong> either novel<br />
pharmacological treatments or neuronal transplants on the corticostriatal<br />
microcircuitry. S<strong>in</strong>ce chronic treatment with the DA precursor L-DOPA<br />
<strong>in</strong>duces <strong>in</strong> the majority <strong>of</strong> PD patients a maladapTative plasticity caus<strong>in</strong>g<br />
<strong>in</strong>voluntary movements (dysk<strong>in</strong>esia), <strong>in</strong>novative strategies should prevent<br />
the development <strong>of</strong> this disabl<strong>in</strong>g condition. The project will characterize<br />
corticostriatal synaptic plasticity from molecular aspects to cl<strong>in</strong>ical<br />
neurophysiology <strong>in</strong>volv<strong>in</strong>g also behavioural as well as morphological<br />
analysis <strong>of</strong> the basal ganglia system.<br />
Titolo progetto<br />
“cPADs” - Cell permeable peptides as drug delivery system: a way<br />
towards <strong>in</strong>novative therapeutic strategies for neurodegeneration.<br />
Ente f<strong>in</strong>anziatore EU VII Framework Programme<br />
Durata progetto April 2008- March 2012<br />
Abstract del progetto The project aims to foster a dynamic pathway between academic<br />
<strong>research</strong> organizations and private commercial enterprises, based on a<br />
long-term co-operation programme <strong>in</strong> the field <strong>of</strong> <strong>in</strong>novative therapeutic<br />
strategies for neurodegenerative disorders. Through <strong>in</strong>ter-sectoral<br />
<strong>in</strong>dustry-academia collaboration, the proposal aims to def<strong>in</strong>e appropriate<br />
technologies to target key prote<strong>in</strong>-prote<strong>in</strong> <strong>in</strong>teractions and key<br />
<strong>in</strong>tracellular pathways mediat<strong>in</strong>g neurodegeneration and cell death,<br />
address<strong>in</strong>g both the creation <strong>of</strong> <strong>in</strong>novative models and the design <strong>of</strong><br />
<strong>in</strong>novative drugs by means <strong>of</strong> exploit<strong>in</strong>g the use <strong>of</strong> Cell-Permeable<br />
Peptides.
Nome Pr<strong>of</strong>. Renata Bartesaghi<br />
Contatti<br />
Tel +39 051 2091727, +39 051 2091747<br />
Fax +39 051 2091737<br />
e-mail: renata.bartesaghi@unibo.it<br />
Istituto/Dipartimento Dipartimento di Fisiologia Umana e Generale, Università di Bologna<br />
Proposta di ricerca<br />
Study <strong>of</strong> early onset Alzheimer disease <strong>in</strong> a model for Down syndrome, the Ts65Dn mouse<br />
Area di <strong>in</strong>teresse identificata:<br />
DEVELOPING COMPETITIVE<br />
ANIMAL MODELS TO STUDY<br />
ALZHEIMER’S DISEASE<br />
Area di <strong>in</strong>teresse identificata:<br />
BASIC RESEARCH<br />
Individuals with Down syndrome (DS) develop neuropathological<br />
features similar to Alzheimer disease (AD) early <strong>in</strong> life, <strong>in</strong>clud<strong>in</strong>g<br />
dementia, accumulation <strong>of</strong> beta-amyloid, and irregular<br />
phosphorylation <strong>of</strong> tau prote<strong>in</strong>s. Ts65Dn mice have an extra copy <strong>of</strong><br />
the distal aspect <strong>of</strong> mouse chromosome 16, a segment which is<br />
homologous to human chromosome 21 and which conta<strong>in</strong>s much <strong>of</strong><br />
the genetic material responsible for the DS phenotype. Ts65Dn mice<br />
show developmental delay dur<strong>in</strong>g the postnatal period as well as<br />
abnormal behaviors <strong>in</strong> both young and adult animals that may be<br />
analogous to mental retardation. Though the Ts65Dn bra<strong>in</strong> is<br />
normal on gross exam<strong>in</strong>ation, there is age-related degeneration <strong>of</strong><br />
septohippocampal chol<strong>in</strong>ergic neurons and astrocytic hypertrophy,<br />
markers <strong>of</strong> the AD pathology present <strong>in</strong> elderly DS <strong>in</strong>dividuals.<br />
Moreover, Ts65Dn mice undergo cognitive deterioration beg<strong>in</strong>n<strong>in</strong>g<br />
at 6-8 months <strong>of</strong> age. All this evidence suggests that Ts65Dn mice<br />
may provide a unique model which is suitable for follow<strong>in</strong>g the<br />
progression <strong>of</strong> AD.<br />
While AD develops only <strong>in</strong> some <strong>in</strong>dividuals <strong>of</strong> the general<br />
population, it is the <strong>in</strong>variable hallmark <strong>of</strong> DS, imply<strong>in</strong>g that trisomic<br />
genes play a paramount role <strong>in</strong> development <strong>of</strong> the disease. Indeed,<br />
recent evidence shows that the presence <strong>of</strong> an extra copy (due to<br />
trisomy 21) <strong>of</strong> the dual-specificity tyros<strong>in</strong>e-phosphorylated and<br />
regulated k<strong>in</strong>ase 1A (Dyrk1A) gene results <strong>in</strong> overexpression <strong>of</strong><br />
Dyrk1A and elevated k<strong>in</strong>ase activity <strong>in</strong> the DS bra<strong>in</strong>. Dyrk1A<br />
phosphorylates tau at several sites, and these sites are<br />
hyperphosphorylated <strong>in</strong> adult DS bra<strong>in</strong>s. Phosphorylation <strong>of</strong> tau by<br />
Dyrk1A primes its further phosphorylation by glycogen synthase<br />
k<strong>in</strong>ase-3beta (GSK-3beta). These f<strong>in</strong>d<strong>in</strong>gs strongly suggest a novel<br />
mechanism by which the overexpression <strong>of</strong> Dyrk1A <strong>in</strong> DS bra<strong>in</strong>s<br />
causes neur<strong>of</strong>ibrillary degeneration via hyperphosphorylat<strong>in</strong>g tau.<br />
The putative <strong>in</strong>volvement <strong>of</strong> Dyrk1A <strong>in</strong> the etiology <strong>of</strong> AD implies<br />
that de-regulation <strong>of</strong> Dyrk1A may be an age-related phenomenon<br />
that ultimately leads to the pathology. In the Ts65Dn mouse bra<strong>in</strong>,<br />
an extra copy <strong>of</strong> the Dyrk1A gene causes <strong>in</strong>creased expression and<br />
activity <strong>of</strong> Dyrk1A and results <strong>in</strong> <strong>in</strong>creased tau phosphorylation.
Area di <strong>in</strong>teresse identificata:<br />
NEW TREATMENT<br />
STRATEGIES<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore MIUR<br />
Durata progetto 2 anni<br />
Consequently, Ts65Dn mice may represent a good model for the<br />
elucidation <strong>of</strong> the role <strong>of</strong> Dyrk1A (and other trisomic genes) <strong>in</strong> the<br />
development <strong>of</strong> AD.<br />
AD is histopathologically characterized by <strong>in</strong>traneuronal<br />
neur<strong>of</strong>ibrillary degeneration <strong>of</strong> the abnormally<br />
hyperphosphorylated tau and extracellular β-amyloidosis. The<br />
neur<strong>of</strong>ibrillary degeneration is apparently required for the cl<strong>in</strong>ical<br />
expression <strong>of</strong> AD, and <strong>in</strong> related tauopathies it leads to dementia <strong>in</strong><br />
the absence <strong>of</strong> amyloid plaques. While normal tau promotes<br />
assembly and stabilizes microtubules, the abnormally<br />
hyperphosphorylated tau disrupts microtubules. Tau is<br />
phosphorylated by a number <strong>of</strong> prote<strong>in</strong> k<strong>in</strong>ases. Glycogen synthase<br />
k<strong>in</strong>ase-3 (GSK-3) is one <strong>of</strong> the key k<strong>in</strong>ases required for AD-type<br />
abnormal hyperphosphorylation <strong>of</strong> tau, which is believed to be a<br />
critical event <strong>in</strong> neur<strong>of</strong>ibrillary tangle formation. Thus, GSK-3<br />
<strong>in</strong>hibition represents a very attractive drug target <strong>in</strong> AD and other<br />
neurodegenerative disorders. The <strong>in</strong>hibition <strong>of</strong> abnormal<br />
hyperphosphorylation <strong>of</strong> tau is one <strong>of</strong> the most promis<strong>in</strong>g<br />
therapeutic targets for the development <strong>of</strong> disease modify<strong>in</strong>g drugs.<br />
By exploit<strong>in</strong>g the Ts65Dn mouse it will be possible to establish<br />
whether treatments <strong>in</strong>terfer<strong>in</strong>g with tau phosphorylation<br />
ameliorate the AD phenotype. More importantly, it will be possible<br />
to establish whether pharmacotherapy dur<strong>in</strong>g the early life stages<br />
that precede the overt manifestations <strong>of</strong> AD is able to<br />
prevent/delay the onset <strong>of</strong> the pathology<br />
PRIN 2008 - Effect <strong>of</strong> prenatal and early postnatal treatment with<br />
fluoxet<strong>in</strong>e on neurogenesis and dendritic maturation <strong>in</strong> the Ts65Dn<br />
mouse model for Down's syndrome<br />
Abstract del progetto Cognitive decl<strong>in</strong>e <strong>in</strong> Down mice; pharmacological treatment to<br />
prevent cognitive decl<strong>in</strong>e by stimulat<strong>in</strong>g neurogenesis
Nome Sonia Levi<br />
Contatti<br />
+39 0226434755-53<br />
levi.sonia@hsr.it<br />
Istituto/Dipartimento<br />
Proposta di ricerca<br />
San Raffaele Scientific Insitute/Division <strong>of</strong> Neuroscience<br />
Area di <strong>in</strong>teresse identificata Neurodegeneration<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Functional and epidemiological study <strong>of</strong> neur<strong>of</strong>errit<strong>in</strong>opathies:<br />
implications for the role <strong>of</strong> iron <strong>in</strong> neurodegenerative disorders.<br />
Ente f<strong>in</strong>anziatore Telethon<br />
Durata progetto Three years<br />
Abstract del progetto Iron participates <strong>in</strong> the oxidative damage common to various<br />
neurodegenerative disorders, such as Alzheimer and Park<strong>in</strong>son diseases<br />
and Hallevorden−Spatz syndrome, and iron accumulations have been<br />
frequently observed <strong>in</strong> the areas <strong>of</strong> the bra<strong>in</strong> that degenerate. Genetic<br />
abnormalities <strong>of</strong> some prote<strong>in</strong>s strictly <strong>in</strong>volved <strong>in</strong> the regulation <strong>of</strong> iron<br />
metabolism are associated to neurodegeneration. Among them,<br />
neur<strong>of</strong>errit<strong>in</strong>opathies are rare autosomal dom<strong>in</strong>ant disorders associated<br />
with mutations <strong>of</strong> the FTL gene that lead to alterations <strong>of</strong> the C−term<strong>in</strong>us<br />
<strong>of</strong> ferrit<strong>in</strong> L−cha<strong>in</strong>. They are characterized by abnormal iron deposition <strong>in</strong><br />
the basal ganglia <strong>of</strong> the bra<strong>in</strong> and by the appearance <strong>of</strong> ferrit<strong>in</strong><br />
aggregates. L−ferrit<strong>in</strong> is dedicated to iron storage, and prelim<strong>in</strong>ary results<br />
<strong>in</strong>dicate that one <strong>of</strong> the mutations alters iron availability <strong>in</strong> cellular<br />
models. The project is aimed at study<strong>in</strong>g the structural and functional<br />
properties <strong>of</strong> the ferrit<strong>in</strong> mutants, by develop<strong>in</strong>g various cellular models,<br />
<strong>in</strong>clud<strong>in</strong>g primary neurons and glial cells. By this approach, we expect to<br />
provide <strong>in</strong>dications on the molecular mechanisms that are responsible for<br />
both <strong>in</strong>tracellular iron accumulation and prote<strong>in</strong> aggregate formation. In<br />
parallel, we plan to produce knock−<strong>in</strong> mice models express<strong>in</strong>g the<br />
mutated ferrit<strong>in</strong>s, to study the progress <strong>of</strong> neurodegeneration as well as<br />
the formation <strong>of</strong> ferrit<strong>in</strong> aggregates <strong>in</strong> basal ganglia. Possible therapeutic<br />
approaches, <strong>in</strong>clud<strong>in</strong>g the use <strong>of</strong> RNA <strong>in</strong>terference, will be evaluated on<br />
both cellular and animal models. S<strong>in</strong>ce DNA variations <strong>in</strong> FTL gene are not<br />
uncommon, we plan to analyse its mutations, as well as those <strong>of</strong> other<br />
iron−related genes, <strong>in</strong> patients with neurological disorders. This study is<br />
aimed to elucidate how iron acts as a c<strong>of</strong>actor <strong>in</strong> neurodegenerative<br />
processes.
Nome Tiziana Antonelli<br />
Contatti ant@unife.it<br />
Istituto/Dipartimento<br />
Proposta di ricerca<br />
Dept. <strong>of</strong> Cl<strong>in</strong>ical and Experimental Medic<strong>in</strong>e<br />
Pharmacology Section, University <strong>of</strong> Ferrara, Italy<br />
Area di <strong>in</strong>teresse identificata Mechanisms <strong>of</strong> Neurodegeneration : I. Animal models.<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Neurochemical and morphological <strong>in</strong> vivo and <strong>in</strong> vitro models <strong>in</strong><br />
neurodegenerative diseases<br />
Ente f<strong>in</strong>anziatore<br />
BioPharmaNet: Laboratory <strong>of</strong> <strong>research</strong> and <strong>in</strong>novation for the Life<br />
Sciences sector <strong>in</strong>dustries (Emilia Romagna, Italy)<br />
Durata progetto 2007-2010<br />
Abstract del progetto In vitro models <strong>of</strong> neurodegenerative diseases have been developed and<br />
optimized. Cortical cell cultures, ma<strong>in</strong>ly conta<strong>in</strong><strong>in</strong>g GABAergic and<br />
glutamatergic neurons, and hippocampal cell cultures, especially<br />
conta<strong>in</strong><strong>in</strong>g glutamatergic neurons, can be used to study the cell<br />
degeneration follow<strong>in</strong>g neurotoxic <strong>in</strong>sults. The neuronal damage may be<br />
evaluated by analys<strong>in</strong>g neurochemical ([ 3<br />
H]GABA and [ 3<br />
H]glutamate<br />
uptake and release, biochemical (MTT assay, LDH levels) and<br />
morphological (Hoechst 33258 nuclear sta<strong>in</strong><strong>in</strong>g, MAP-2 immunoreactivity)<br />
parameters. These <strong>in</strong> vitro experiments, performed <strong>in</strong> primary neuronal<br />
cultures, cerebral tissue slices and/or synaptosomes, are complementary<br />
to the <strong>in</strong> vivo microdialysis experiments and by comb<strong>in</strong><strong>in</strong>g them it is<br />
possible to <strong>in</strong>vestigate on the efficacy as well as the neurochemical and<br />
molecular mechanisms <strong>of</strong> new drugs aga<strong>in</strong>st neurodegenerative<br />
pathologies. In vivo microdialysis technique <strong>in</strong> unilaterally<br />
6-hydroxydopam<strong>in</strong>e (6-OHDA) lesioned rats allows to understand the<br />
possible relevance <strong>of</strong> new pharmacological approaches <strong>in</strong> the treatment<br />
<strong>of</strong> this pathology. The simultaneous evaluation <strong>of</strong> the release <strong>of</strong> several<br />
neurotransmitters such as dopam<strong>in</strong>e, acetylchol<strong>in</strong>e, glutamate and GABA<br />
<strong>in</strong> the striatum, globus pallidus and/or other close related bra<strong>in</strong> nuclei <strong>of</strong><br />
the <strong>in</strong>direct and direct pathways <strong>of</strong> the basal ganglia, gives the<br />
opportunity to evaluate the efficacy <strong>of</strong> new therapeutic and genetic<br />
strategies <strong>in</strong> the control <strong>of</strong> the “motor” pathways both <strong>in</strong> physiological<br />
and pathological conditions.
2. PHARMACOLOGY<br />
A- Drug Design
Nome N<strong>in</strong>o Russo<br />
Contatti nrusso@unical.it<br />
Istituto/Dipartimento Dipartimento di Chimica, Università della Calabria, via P. Bucci, cubo14c,<br />
87036 Rende (CS), Italy<br />
Proposta di ricerca<br />
Alzheimer_s disease (AD) is characterized by the deposit <strong>of</strong> extracellular amyloid plaques, which consist<br />
predom<strong>in</strong>antly <strong>of</strong> the aggregated peptide amyloid-b (Ab). The aggregation mechanism is not very well<br />
understood, but it is proposed that aggregated forms <strong>of</strong> Ab are neurotoxic because <strong>of</strong> the<br />
production <strong>of</strong> reactive oxygen species (ROS). Copper and other metal ions (e.g. Zn) have been found to<br />
accumulate <strong>in</strong> amyloid plaques. Moreover, Cu ions have been proposed to be l<strong>in</strong>ked to the aggregation <strong>of</strong><br />
the Ab peptide and/or to the <strong>in</strong>creased generation <strong>of</strong> ROS. In this context, Cu II coord<strong>in</strong>ation to Ab<br />
becomes a key feature, because it will directly affect the structure <strong>of</strong> the peptide and, hence, the<br />
aggregation behaviour.<br />
The catalytic ROS production <strong>of</strong> the Cu II ions coord<strong>in</strong>ated by Ab will also be governed by the b<strong>in</strong>d<strong>in</strong>g<br />
mode. Therefore, this system has been extensively studied. However, the unambiguous identification <strong>of</strong><br />
the Cu II ligands has rema<strong>in</strong>ed difficult and no real consensus has emerged <strong>in</strong> the literature yet. It<br />
has been shown that all <strong>of</strong> the ligands <strong>of</strong> the high aff<strong>in</strong>ity Cu II site are conta<strong>in</strong>ed <strong>in</strong> the Ab16 N-term<strong>in</strong>al<br />
doma<strong>in</strong> (DAEFRHDSGYEVHHQK); hence, this soluble fragment has been widely used as a model for the CuII<br />
b<strong>in</strong>d<strong>in</strong>g site <strong>in</strong> the native Ab40/42 peptides. Although a lot <strong>of</strong> experimental studies performed with a wide<br />
range <strong>of</strong> methods, the analysis <strong>of</strong> the results difficult and impaired the unambiguous identification <strong>of</strong> the<br />
Cu II ligands.<br />
Modern theoretical and computational methods can give a significant contribution to the knowledge <strong>of</strong><br />
the elementary mechanisms at atomistic level on a series <strong>of</strong> open questions such as: i. unambiguous<br />
identification <strong>of</strong> the metal coord<strong>in</strong>ation site; ii. the role <strong>of</strong> the metal coord<strong>in</strong>ation <strong>in</strong> the conformational<br />
change <strong>of</strong> the metallated prote<strong>in</strong>; iii. The effect <strong>of</strong> the environment on the complex formation; iv. Design<br />
<strong>of</strong> new and specific drugs for the metal chelation and sequestration.<br />
For the development <strong>of</strong> this <strong>research</strong> program, sophisticated computational protocols as well as<br />
theoretical methods will be implemented and used.<br />
Area di <strong>in</strong>teresse identificata Basic <strong>research</strong><br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Development <strong>of</strong> computational and theoretical methods based on the<br />
Density Functional theory and their application on systems with biological<br />
significance.<br />
Ente f<strong>in</strong>anziatore Università della Calabria<br />
Durata progetto Due anni<br />
Abstract del progetto New algorithms and computational protocols based on the density<br />
functional theory should be proposed and tested. The applications should<br />
be essentially devoted to the study <strong>of</strong> complex biological systems
Nome Carlo Melchiorre<br />
Contatti e-mail: carlo.melchiorre@unibo.it ph: 051-2099706<br />
Istituto/Dipartimento Dipartimento di Scienze Farmaceutiche<br />
Proposta di ricerca<br />
Università di Bologna<br />
Via Belmeloro, 6, 40126 Bologna<br />
Innovative drug discovery strategies for Alzheimer’s disease<br />
Area di <strong>in</strong>teresse identificata<br />
New treatment strategies<br />
F<strong>in</strong>anziamenti ricevuti<br />
Alzheimer’s disease (AD) is a major neurodegenerative disease<br />
affect<strong>in</strong>g a substantial proportion <strong>of</strong> elderly population and<br />
impos<strong>in</strong>g a significant burden on public health. For AD there is still<br />
no cure, and only few symptomatic treatment options are available<br />
to the 30 million patients worldwide. Driven by the clear unmet<br />
medical need and a better understand<strong>in</strong>g <strong>of</strong> the AD biology and<br />
pathophysiology, several lead candidates have progressed to precl<strong>in</strong>ical<br />
test<strong>in</strong>g <strong>in</strong> the last decade. However, to date none has been<br />
successful <strong>in</strong> late-stages cl<strong>in</strong>ical trials. Currently, AD is best<br />
characterized as a multidysfunctional condition, where <strong>in</strong>terrelated<br />
molecular events result <strong>in</strong> amyloid formation, tau abnormalities,<br />
amyloid accumulations, and loss <strong>of</strong> acetylchol<strong>in</strong>e neurotransmission.<br />
Currently available drugs and most <strong>of</strong> the drugs under<br />
development target only one <strong>of</strong> these mechanisms. This may<br />
expla<strong>in</strong> why they exhibit limited effectiveness. Therefore,<br />
therapeutic tools able to confront this complexity are urgently<br />
needed. Another issue to take <strong>in</strong>to account <strong>in</strong> AD drug discovery is<br />
that AD patients are susceptible to a wide range <strong>of</strong> concomitant<br />
medical conditions (co-morbidity), <strong>in</strong>clud<strong>in</strong>g hypertension, vascular<br />
diseases, diabetes, which can <strong>of</strong>ten be associated. There is<br />
therefore a need for therapeutic tools to be tailored to their specific<br />
conditions.<br />
In this respect, we have recently proposed that multitarget ligands,<br />
i.e. s<strong>in</strong>gle chemical entities able to modulate simultaneously<br />
multiple targets, might represent the best pharmacological option<br />
for both tackl<strong>in</strong>g the multifactorial nature <strong>of</strong> AD and simplify<strong>in</strong>g AD<br />
patient therapeutic regimen. Furthermore, from a chemical biology<br />
perspective, we envisaged that rationally designed multitarget<br />
chemical probes have promise for study<strong>in</strong>g the complex<br />
mechanisms underly<strong>in</strong>g neurodegeneration.
Titolo progetto<br />
Pr<strong>in</strong>cipal Investigator: “Neuroreceptors mach<strong>in</strong>ery: design and<br />
synthesis <strong>of</strong> molecules useful for their characterization and<br />
modulation and for the treatment <strong>of</strong> related dysfunctions”<br />
(20073EWPF9_003;)<br />
Ente f<strong>in</strong>anziatore M<strong>in</strong>istero dell’Istruzione, dell’Università e della Ricerca (€ 490,000)<br />
Durata progetto 22/09/2008-21/09/2010<br />
Abstract del progetto<br />
Titolo progetto<br />
The present project regards the design, synthesis and prelim<strong>in</strong>ary<br />
pharmacological evaluation <strong>of</strong> ligands and modulators <strong>of</strong><br />
neurotransmitter receptor systems. The knowledge <strong>of</strong> structure and<br />
functions <strong>of</strong> neurotransmitter receptor systems is critical to design<br />
and develop drugs useful to treat the numerous pathologies that<br />
depend on central and peripheral nervous transmission<br />
dysfunctions. As a matter <strong>of</strong> fact, it is well known that severe<br />
pathologies such as pa<strong>in</strong>, anxiety, mental conditions, and<br />
neurodegeneration are due to receptor dysfunctions. Some <strong>of</strong> these<br />
pathologies have a tremendous social impact as they <strong>in</strong>volve large<br />
population segments, <strong>in</strong> particular aged people.<br />
Pr<strong>in</strong>cipal Investigator: “Development <strong>of</strong> Innovative Methodologies<br />
for the Identification and Synthesis <strong>of</strong> New Bioactive Molecules:<br />
application to the Alzheimer's disease” (FIRB 2003 RBNE03FH5Y;) €<br />
Ente f<strong>in</strong>anziatore M<strong>in</strong>istero dell’Istruzione, dell’Università e della Ricerca (€<br />
2,871,000)<br />
Durata progetto 12/09/2005-11/09/2008<br />
Abstract del progetto<br />
The modern Medic<strong>in</strong>al Chemistry is nowadays requir<strong>in</strong>g an actual<br />
multidiscipl<strong>in</strong>ary approach and the development <strong>of</strong> new<br />
technologies either to accelerate the whole discovery process, or to<br />
provide better and safer candidate drug. In this context, the goals <strong>of</strong><br />
the present project are both to develop <strong>in</strong>novative technological<br />
frameworks for molecular recognition and comb<strong>in</strong>atorial chemistry,<br />
and to validate the applicability <strong>of</strong> such techniques through the<br />
production <strong>of</strong> new therapeutics <strong>in</strong> the field <strong>of</strong> the Alzheimer's<br />
disease (AD)
Nome Pr<strong>of</strong>. Federico Da Settimo, Pr<strong>of</strong>. Claudia Mart<strong>in</strong>i<br />
Contatti fsettimo@farm.unipi.it, cmart<strong>in</strong>i@farm.unipi.it<br />
Istituto/Dipartimento Department <strong>of</strong> Pharmaceutical Science, Department <strong>of</strong> Psychiatry,<br />
Neurobiology, Pharmacology, and Biotechnology - University <strong>of</strong> Pisa<br />
Proposta di ricerca<br />
Development <strong>of</strong> labelled ligands specifically target<strong>in</strong>g the Translocator Prote<strong>in</strong> 18 kDa <strong>in</strong> Alzheimer<br />
Disease.<br />
The Translocator Prote<strong>in</strong> (TSPO) is a mitochondrial transmembrane prote<strong>in</strong> <strong>in</strong>volved <strong>in</strong> a variety <strong>of</strong><br />
biological processes, such as steroidogenesis, apoptosis <strong>in</strong>duction and <strong>in</strong>flammation, and it is differently<br />
expressed under physio/pathological conditions, <strong>in</strong> bra<strong>in</strong> cells (astrocytes and microglia). A dramatic<br />
<strong>in</strong>crease <strong>in</strong> TSPO levels occurs <strong>in</strong> glial cells <strong>in</strong> response to bra<strong>in</strong> <strong>in</strong>jury and <strong>in</strong>flammation, so that TSPO can<br />
be considered as a biomarker <strong>of</strong> ongo<strong>in</strong>g bra<strong>in</strong> <strong>in</strong>sults. The activation <strong>of</strong> microglial cells and the<br />
consequent up-regulation <strong>of</strong> the TSPO sites have been demonstrated <strong>in</strong> both normal age<strong>in</strong>g and <strong>in</strong> bra<strong>in</strong>s<br />
<strong>of</strong> patients affected by Alzheimer disease (AD), stroke and multiple sclerosis. Increased TSPO expression<br />
has been observed In this view, the use <strong>of</strong> TSPO ligands could efficiently reveal microglia activation, so<br />
represent<strong>in</strong>g a useful tool <strong>in</strong> bra<strong>in</strong> imag<strong>in</strong>g, both <strong>in</strong> vivo and <strong>in</strong> post-mortem analysis.<br />
Our group has ga<strong>in</strong>ed experience <strong>in</strong> the synthesis <strong>of</strong> heterocyclic compounds act<strong>in</strong>g at the<br />
mitochondrial translocator prote<strong>in</strong> (TSPO). As well documented by several <strong>in</strong>ternational publications, over<br />
the course <strong>of</strong> several years the <strong>research</strong> group has also ga<strong>in</strong>ed experience <strong>in</strong> the evaluation <strong>of</strong> the<br />
biological activity <strong>of</strong> new synthesised compounds, through high yield methodologies (Prim<strong>of</strong>iore, G., et al.<br />
J. Med. Chem. 2004, 47, 1852; Chelli, B., et al Chembiochem. 2005, 6, 1082; Taliani, S., et al. J. Med. Chem.<br />
2007, 50, 404; Da Settimo, F., et al. J. Med. Chem. 2008, 51, 5798; Chelli, B., et al. J. Cell. Biochem. 2008,<br />
105, 712.)<br />
The ga<strong>in</strong>ed experience have generated significant efforts <strong>of</strong> the group to apply TSPO ligands as<br />
marker <strong>of</strong> “active” bra<strong>in</strong> pathology, <strong>in</strong> l<strong>in</strong>e with multiple <strong>research</strong> groups throughout the world.<br />
In the present project we aim to design, synthesise and evaluate novel specific TSPO probes<br />
featur<strong>in</strong>g the <strong>in</strong>dolglyoxylamide scaffold, suitable as useful tools <strong>in</strong> bra<strong>in</strong> imag<strong>in</strong>g. A number <strong>of</strong><br />
radiolabelled ligands target<strong>in</strong>g TSPO will be developed as powerful tools to image and measure the<br />
expression levels <strong>of</strong> the prote<strong>in</strong> <strong>in</strong> humans, open<strong>in</strong>g up the opportunity for the discovery <strong>of</strong> specific PET<br />
ligands for TSPO. PET studies <strong>of</strong> TSPO could <strong>of</strong>fer quantitative follow-up <strong>of</strong> neuro<strong>in</strong>flammation, an<br />
advantage for biomarker-type measurement dur<strong>in</strong>g drug development and early cl<strong>in</strong>ical development.<br />
Prelim<strong>in</strong>arily, studies are <strong>in</strong> progress with monkeys.<br />
Moreover, fluorescent ligands, that represent a safer, faster, and less expensive alternative to<br />
radioligands, will be developed for usage <strong>in</strong> biomedical <strong>research</strong>. In particular we will <strong>in</strong>vestigate a series<br />
<strong>of</strong> fluorescent probes characterized by the presence <strong>of</strong> a chemoreactive group able to b<strong>in</strong>d the receptor<br />
prote<strong>in</strong> irreversibly and covalently, <strong>in</strong> order to overcome the fact that tissue experimental procedures<br />
us<strong>in</strong>g a labelled ligand <strong>of</strong>ten cause the alteration <strong>of</strong> the chemical equilibrium and the subsequent loss <strong>of</strong><br />
the bound fluorescent ligand. The presence <strong>of</strong> these two devices (a chemoreactive group and a fluorescent<br />
chromophore) on a s<strong>in</strong>gle molecule may <strong>of</strong>fer a multiplicity <strong>of</strong> advantages, both <strong>in</strong> prote<strong>in</strong><br />
purification/characterization, and <strong>in</strong> prote<strong>in</strong> cell visualization/density determ<strong>in</strong>ation <strong>in</strong> both cell cultures<br />
and tissue slices derived from post-mortem bra<strong>in</strong>s.<br />
Pursu<strong>in</strong>g <strong>of</strong> these goals will be realized <strong>in</strong> strict collaborations with the <strong>research</strong> groups <strong>of</strong> Pr<strong>of</strong>.<br />
Silvia Selleri (University <strong>of</strong> Florence).<br />
Area di <strong>in</strong>teresse identificata<br />
F<strong>in</strong>anziamenti ricevuti<br />
Drug development for AD Diagnosis, Monitor<strong>in</strong>g and Bra<strong>in</strong> imag<strong>in</strong>g
Titolo progetto<br />
Ente f<strong>in</strong>anziatore University <strong>of</strong> Pisa<br />
Durata progetto<br />
24 months<br />
Abstract del progetto<br />
New fluorescent tools target<strong>in</strong>g the translocator prote<strong>in</strong> (TSPO) as<br />
diagnostics for cancer and neurodegenerative diseases.<br />
The proposed <strong>research</strong> is addressed to develop <strong>in</strong>novative fluorescent<br />
probes target<strong>in</strong>g the 18 kDa Translocator Prote<strong>in</strong> (TSPO) (previously<br />
known as the peripheral-type benzodiazep<strong>in</strong>e receptor) as promis<strong>in</strong>g<br />
molecular imag<strong>in</strong>g (MI) tools to be widely applied <strong>in</strong> study<strong>in</strong>g TSPO<br />
location, turn-over and <strong>in</strong>teraction as well as <strong>in</strong> diagnos<strong>in</strong>g TSPO related<br />
pathologies. TSPO is a prote<strong>in</strong> ma<strong>in</strong>ly expressed <strong>in</strong> mitochondria, which is<br />
<strong>in</strong>volved <strong>in</strong> cell proliferation, apoptosis, immunomodulation and<br />
steroidogenesis. TSPO basal density is altered <strong>in</strong> pathologies <strong>in</strong> which a<br />
perturbation <strong>of</strong> cell survival/death processes has been evidenced such as<br />
cancer and neurodegenerative disorders and alterations <strong>in</strong> TSPO<br />
subcellular distribution have been correlated with the malignancy grade<br />
<strong>of</strong> cancer cells. Therefore, TSPO has been suggested as a promis<strong>in</strong>g drug<br />
target as well as a valid diagnostic marker <strong>of</strong> state and progression <strong>of</strong><br />
such pathologies and has become an <strong>in</strong>terest<strong>in</strong>g target <strong>in</strong> MI. Currently,<br />
MI has emerged as an important multidiscipl<strong>in</strong>ary area, which <strong>in</strong>volves<br />
radiology, biology, biochemistry, physics, eng<strong>in</strong>eer<strong>in</strong>g, medic<strong>in</strong>e and<br />
synthetic chemistry, essential <strong>in</strong> provid<strong>in</strong>g potent imag<strong>in</strong>g agents. Based<br />
on our previous experiences, the aim <strong>of</strong> this <strong>research</strong> program is to<br />
design, synthesize and biologically characterize/validate new reversible<br />
and irreversible fluorescent 2-phenyl<strong>in</strong>dol-3-ylglyoxylamide ligands with<br />
high aff<strong>in</strong>ity and selectivity for TSPO. The development <strong>of</strong> these<br />
<strong>in</strong>novative fluorescent TSPO ligands will <strong>of</strong>fer a wide range <strong>of</strong> advantages<br />
for their applications <strong>in</strong> molecular basic studies as well as <strong>in</strong> diagnosis.
Nome Alberto Cassetta<br />
Contatti<br />
Alberto.cassetta@ts.ic.cnr.it - Tel: ++39 040 226881<br />
Istituto/Dipartimento CNR – Istituto di Cristallografia UOS Trieste (Dip. Progettazione<br />
Molecolare)<br />
Proposta di ricerca<br />
Structural studies <strong>of</strong> acetylchol<strong>in</strong>esterases and their <strong>in</strong>hibitors: implications for the design <strong>of</strong> new anti-Alzheimer<br />
drugs<br />
Acetylchol<strong>in</strong>e esterase (AChE) plays a crucial role <strong>in</strong> the regulation <strong>of</strong> signal transmission, by term<strong>in</strong>at<strong>in</strong>g the action <strong>of</strong><br />
acetylchol<strong>in</strong>e at the chol<strong>in</strong>ergic synapse and muscular junctions. AChE <strong>in</strong>hibitors are used <strong>in</strong> the symptomatic<br />
treatment <strong>of</strong> pathologies such as Alzheimer's disease. The 3D crystal structures <strong>of</strong> a number <strong>of</strong> AChE complexes with<br />
reversible and irreversible <strong>in</strong>hibitors have been determ<strong>in</strong>ed. The structural <strong>in</strong>formation accompanied by k<strong>in</strong>etic<br />
studies will allow a detailed understand<strong>in</strong>g <strong>of</strong> the molecular determ<strong>in</strong>ants underly<strong>in</strong>g the mechanism <strong>of</strong> action <strong>of</strong> this<br />
enzyme. Furthermore these results are expected to <strong>of</strong>fer a rational framework for the design and synthesis <strong>of</strong><br />
compounds with optimal pharmacok<strong>in</strong>etic and pharmacodynamic properties.<br />
Structural studies <strong>of</strong> neurotroph<strong>in</strong>s (NGF), proneurotroph<strong>in</strong>s(proNGF) and their <strong>in</strong>teractions with their receptors<br />
TrkA, p75, sortil<strong>in</strong>) and a panel <strong>of</strong> neutraliz<strong>in</strong>g antibodies(MNAC13, αD11)<br />
Neurotroph<strong>in</strong>s such as nerve growth factor (NGF) are <strong>in</strong>volved <strong>in</strong> the development and ma<strong>in</strong>tenance <strong>of</strong> neurons both<br />
<strong>in</strong> the central and peripheral nervous system, and have been implicated as potential therapeutic target molecules <strong>in</strong><br />
the Alzheimer's disease. NGF exerts its biological function by b<strong>in</strong>d<strong>in</strong>g to TrkA receptor promot<strong>in</strong>g dimerization,<br />
catalytic auto-phosphorylation <strong>of</strong> <strong>in</strong>tracellular tyros<strong>in</strong>e residues and trigger<strong>in</strong>g <strong>of</strong> the signal transduction cascade.<br />
Until recently, no clear biological role had been attributed to the proneurothroph<strong>in</strong> (proNGF) peptide, except help<strong>in</strong>g<br />
<strong>in</strong> fold<strong>in</strong>g and secretion <strong>of</strong> mature NGF. Moreover, proNGF was found to be the predom<strong>in</strong>ant form <strong>of</strong> NGF <strong>in</strong> bra<strong>in</strong><br />
and to be <strong>in</strong>creased <strong>in</strong> Alzheimer's disease and to <strong>in</strong>duce p75NTR dependent apoptosis <strong>in</strong> cultured neurons. The<br />
specific receptor for proNGF is sortil<strong>in</strong>. We are <strong>in</strong>vestigat<strong>in</strong>g the structural and functional bases <strong>of</strong> the biological<br />
differences between NGF and proNGF. The monoclonal antibodies MNAC13 and αD11 are potent antagonists that<br />
prevent the NGF-TrkA <strong>in</strong>teractions <strong>in</strong> vivo systems. In order to ga<strong>in</strong> deeper <strong>in</strong>sight <strong>in</strong>to the molecular basis <strong>of</strong> the<br />
observed high aff<strong>in</strong>ity <strong>of</strong> NGF for TrkA, we are <strong>in</strong>vestigat<strong>in</strong>g the 3D structures <strong>of</strong> both neutraliz<strong>in</strong>g antibodies and <strong>of</strong><br />
the respective complexes. Detailed structural <strong>in</strong>formation on their antigenic recognition is expected to aid <strong>in</strong> the<br />
development <strong>of</strong> analogs as antagonists or agonists <strong>of</strong> neurotroph<strong>in</strong>s that may have greater aff<strong>in</strong>ity or specificity for<br />
further experimental and therapeutic applications.<br />
Structural studies <strong>of</strong> Hydroxysteroid Dehydrogenases and their <strong>in</strong>teractions with phytoestrogens <strong>of</strong>flavonoid<br />
nature.<br />
17β-Hydroxysteroid dehydrogenases (17β-HSDs) are enzymes which play a crucial role <strong>in</strong> steroid hormones action by<br />
act<strong>in</strong>g on the f<strong>in</strong>al steps <strong>of</strong> estrogen or androgen biosynthesis. Given their ability to <strong>in</strong>terconvert a hormonally<br />
<strong>in</strong>active (or less active) steroid to its active form, these enzymes operate a pre-receptorial regulation <strong>of</strong> steroid<br />
action. Several dist<strong>in</strong>ct 17β-HSDs isozymes can be found <strong>in</strong> human, pr<strong>in</strong>cipally dist<strong>in</strong>ct by their tissue type and cellular<br />
localization, homology sequence and metabolic pathway. In humans different 17β-HSDs have been l<strong>in</strong>ked to several<br />
pathological forms: prostate and breast cancer (17β-HSD type 1) and Alzheimer’s disease (17β-HSD type 10) among<br />
others. We have recently undertaken a structural study on a fungal 17β-HSD which share a remarkable structural<br />
similarity with both type 1 and 10 <strong>of</strong> human 17β-HSD. Our studies were aimed to <strong>in</strong>vestigate the use <strong>of</strong> the fungal<br />
enzyme as possible model for the understand<strong>in</strong>g at the molecular level the <strong>in</strong>teraction mechanism <strong>of</strong> 17β-HSDs with<br />
specific and less-specific <strong>in</strong>hibitors. In particular we are <strong>in</strong>vestigat<strong>in</strong>g the <strong>in</strong>hibitory action <strong>of</strong> phytoestrogens,
pr<strong>in</strong>cipally <strong>of</strong> flavonoid nature, towards 17β-HSD type 1, which have been demonstrated to be <strong>in</strong>activated at the<br />
μmol level by certa<strong>in</strong> flavonoids and coumestans. Moreover, given the lack <strong>of</strong> biochemical and structural data about<br />
the effects <strong>of</strong> flavonoids on type 10 17β-HSD, we <strong>in</strong>tend to further <strong>in</strong>vestigate this subject by a<br />
biochemical/biophysical approach comb<strong>in</strong>ed with crystallographic methods by study<strong>in</strong>g the <strong>in</strong>hibition properties <strong>of</strong><br />
the above compounds toward the human 17β-HSD homologue. Because both mutations <strong>of</strong> the gene encod<strong>in</strong>g this<br />
enzyme and its overexpression give raise to a dist<strong>in</strong>ct type <strong>of</strong> mental retardation (17--β-Hydroxysteroid<br />
Dehydrogenase X Deficiency; OMIM #300438) and it has been shown to be a molecular l<strong>in</strong>k between mitochondrial<br />
dysfunction and Alzheimer’s disease by direct b<strong>in</strong>d<strong>in</strong>g <strong>of</strong> the β-amyloid peptide, our approach will provide a valuable<br />
understand<strong>in</strong>g <strong>of</strong> the role played by this enzyme <strong>in</strong> the occurrence <strong>of</strong> these neuropathies.<br />
LUSTBADER J, CIRILLI M., LIN C., XU H.W., CASPERSEN C., WANG N., TAKUMA K., CHEN X., CHANEY M. TRINCHESE<br />
F., LIU S., KUPPUSAMY P., ZEWIER Z., ARANCIO O., STERN D., YAN S.D., WU H.: “ABAD Directly L<strong>in</strong>ks Aβ to<br />
Mitochondrial Toxicity <strong>in</strong> Alzheimer’s Disease”. Science (2004) 304, 448-52<br />
Paoletti F, Covaceuszach S, Konarev PV, Gonfloni S, Malerba F, Schwarz, E,Svergun DI, Cattaneo A, Lamba D. “Intr<strong>in</strong>sic<br />
structural disorder <strong>of</strong> mouse proNGF”. Prote<strong>in</strong>s. 2009 Jun;75(4):990-1009.<br />
Covaceuszach S, Cassetta A, Konarev PV, Gonfloni S, Rudolph R, Svergun DI, Lamba D, Cattaneo A. “Dissect<strong>in</strong>g NGF<br />
<strong>in</strong>teractions with TrkA and p75 receptors by structural and functional studies <strong>of</strong> an anti-NGF neutraliz<strong>in</strong>g antibody”.<br />
J Mol Biol. 2008 Sep 12;381(4):881-96.<br />
Bartolucci C, Haller LA, Jordis U, Fels G, Lamba D. “Prob<strong>in</strong>g Torpedo californica acetylchol<strong>in</strong>esterase catalytic gorge<br />
with two novel bis-functional galantham<strong>in</strong>e derivatives”. J Med Chem. 2010 Jan 28;53(2):745-51.<br />
Cattaneo, S. Covaceuszach, D. Lamba: “Method for the humanization <strong>of</strong> antibodies and<br />
humanized<br />
antibodies thereby obta<strong>in</strong>ed”. Patent WO/2005/061540<br />
Area di <strong>in</strong>teresse<br />
identificata<br />
Structural Neurobiology<br />
F<strong>in</strong>anziamenti ricevuti Not Applicable<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto
2. PHARMACOLOGY<br />
B-Drug screen<strong>in</strong>g
Nome Laura Calzà<br />
Contatti<br />
laura.calza@unibo.it<br />
Tel. +39 051 2097947<br />
Cell. +39 335 310979<br />
Istituto/Dipartimento DIMORFIPA<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse identificata<br />
Development <strong>of</strong> competitive<br />
animal models for AD<br />
Basic <strong>research</strong><br />
New treatment strategies<br />
GLP grade animal facility and behavioural test<strong>in</strong>g for cognitive<br />
performance <strong>in</strong> AD animal models us<strong>in</strong>g video track<strong>in</strong>g and<br />
computer analysis; screen<strong>in</strong>g <strong>of</strong> new molecules after acute<br />
adm<strong>in</strong>istration<br />
Bra<strong>in</strong> metabolism <strong>of</strong> thyroid hormone: a risk factor for AD? We are<br />
<strong>in</strong>terested <strong>in</strong> explor<strong>in</strong>g possible connections between thyroid<br />
hormone content, receptor and activat<strong>in</strong>g enzyme expression, APP<br />
metabolism and Ab toxicity <strong>in</strong> the bra<strong>in</strong> <strong>in</strong> normal and AD mice.<br />
Recent advances <strong>in</strong> knowledge on thyroid hormone bra<strong>in</strong><br />
metabolism and molecular biology <strong>of</strong> nuclear and membrane<br />
thyroid hormone receptors and transporters <strong>of</strong>fer new possible<br />
targets to explore this topic.
Nome Iliana Ferrero Fortunati<br />
Contatti<br />
iferrero@unipr.it<br />
Phone: +39-0521905600<br />
Fax: +39-0521905604<br />
Mobile : +39-3480030063<br />
Istituto/Dipartimento Dipartimento di Genetica, Biologia dei microrganismi, Antropologia,<br />
Evoluzione – Università degli Studi di Parma<br />
Parco Area delle Scienze 11/A - Campus<br />
43100 Parma<br />
Proposta di ricerca<br />
“Yeast model to seek for molecules which can reduce mitochondrial mutability”<br />
Mitochondrial dysfunction is a prom<strong>in</strong>ent feature <strong>of</strong> Alzheimer’s Disease (AD) and there is grow<strong>in</strong>g body<br />
<strong>of</strong> evidence that mitochondrial dysfunction plays a crucial role <strong>in</strong> the pathogenesis or <strong>in</strong>fluences the risk <strong>of</strong><br />
AD.<br />
The Yeast Genetics Group <strong>of</strong> University <strong>of</strong> Parma, coord<strong>in</strong>ated by <strong>of</strong> Pr<strong>of</strong>. Iliana Ferrero, has a long last<strong>in</strong>g<br />
experience <strong>in</strong> the use <strong>of</strong> Saccharomyces cerevisiae as a model system to study mitochondrial mutability to<br />
address the question <strong>of</strong> whether there is a molecular relationship between the pathology and the specific<br />
mutation and to study the pathogenic mechanisms <strong>of</strong> human disease associated to mitochondrial DNA<br />
mutations. The yeast group has a forty years experience on yeast genetics and a ten years experience <strong>in</strong><br />
the use <strong>of</strong> yeast model <strong>of</strong> mitochondrial diseases (<strong>in</strong> collaboration with Dr. Massimo Zeviani, Unit <strong>of</strong><br />
Molecular Neurogenetics, IRCCS Foundation Neurological Institute FC. Besta, and with Pr<strong>of</strong>. Giacomo<br />
Comi, Department <strong>of</strong> Neurological Sciences and Centre <strong>of</strong> Excellence on <strong>Neurodegenerative</strong> Diseases,<br />
University <strong>of</strong> Milan). We have created yeast models <strong>of</strong> several mitochondrial pathologies due to mutations<br />
<strong>in</strong> a relevant number <strong>of</strong> genes <strong>in</strong>volved <strong>in</strong> mitochondrial DNA stability. Moreover, we have already used<br />
the S. cerevisiae model system to study the effect <strong>of</strong> molecules on mitochondrial DNA mutability and we<br />
have identified molecules able to reduce mitochondrial mutability.<br />
Specific aims<br />
The ma<strong>in</strong> scope <strong>of</strong> our proposal is the use <strong>of</strong> S. cerevisiae models already exist<strong>in</strong>g <strong>in</strong> our collection and,<br />
when necessary, create new yeast models to test a pharmacological approach to therapy. To this aim we<br />
propose to subject yeast model to chemicals (chemical library) screen<strong>in</strong>g to prospect new therapeutic<br />
drugs able to reduce either extended or po<strong>in</strong>t mutability or both.<br />
Publications <strong>of</strong> Iliana Ferrero on yeast model <strong>of</strong> mitochondrial disease<br />
Dallabona, C., Marsano, R.M., Arzuffi, P., Ghezzi, D., Manc<strong>in</strong>i, P., Zeviani, M., Ferrero, I., Donn<strong>in</strong>i, C. (2010).<br />
Sym1, the yeast ortholog <strong>of</strong> the MPV17 human disease prote<strong>in</strong>, is a stress-<strong>in</strong>duced bioenergetic and<br />
morphogenetic mitochondrial modulator. Hum Mol Genet 2010 Jan 15. [Epub ahead <strong>of</strong> pr<strong>in</strong>t]<br />
Ghezzi D, G<strong>of</strong>fr<strong>in</strong>i P, Uziel, G, Horvath R, Klopstock T, Lochmaller H, D'Adamo P, Gaspar<strong>in</strong>i P, Strom TM,<br />
Prokisch H, Invernizzi F, Ferrero I, Zeviani M (2009). SDHAF1, encod<strong>in</strong>g a LYR complex-II specific assembly<br />
factor, is mutated <strong>in</strong> SDH-defective <strong>in</strong>fantile leukoencephalopathy. Nature Genetics, 41, 654-656.<br />
Di Fonzo, A., Ronchi, D., Lodi, T., Fassone, E., Tigano, M., Lamperti, C., Corti, S., Bordoni, A., Fortunato, F.,<br />
Nizzardo, M., Napoli, L., Donadoni, C., Salani, S., Salad<strong>in</strong>o, F., Moggio, M., Bresol<strong>in</strong>, N., Ferrero, I., Comi,<br />
G.P. (2009). The mitochondrial disulfide relay system prote<strong>in</strong> GFER is mutated <strong>in</strong> autosomal-recessive<br />
myopathy with cataract and comb<strong>in</strong>ed respiratory-cha<strong>in</strong> deficiency. Am J Hum Genet 84 594-604.<br />
Ghezzi, D., G<strong>of</strong>fr<strong>in</strong>i, P., Uziel, G., Horvath, R., Klopstock, T., Lochmaller, H., D'Adamo, P., Gaspar<strong>in</strong>i, P.,<br />
Strom, T.M., Prokisch, H., Invernizzi, F., Ferrero, I., Zeviani, M. (2009). SDHAF1, encod<strong>in</strong>g a LYR complex-II<br />
specific assembly factor, is mutated <strong>in</strong> SDH-defective <strong>in</strong>fantile leukoencephalopathy. Nature Genetics,
41, 654-656<br />
G<strong>of</strong>fr<strong>in</strong>i, P., Ercol<strong>in</strong>o, T., Panizza, E., Giachè, V., Cavone, L., Chiarugi, A., Dima, V., Ferrero, I., Mannelli, M.<br />
(2009). Functional study <strong>in</strong> a yeast model <strong>of</strong> a novel succ<strong>in</strong>ate-dehydrogenase subunit B gene germl<strong>in</strong>e<br />
missense mutation (C191Y) diagnosed <strong>in</strong> a patient affected by a glomus tumor. Hum Mol Genet 18,<br />
1860-1868.<br />
Sp<strong>in</strong>azzola, A., Invernizzi, F., Carrara, F., Lamantea, E., Donati, A., Dirocco, M., Giordano, I., Meznaric-<br />
Petrusa, M., Baruff<strong>in</strong>i, E., Ferrero, I., Zeviani, M. (2009). Cl<strong>in</strong>ical and molecular features <strong>of</strong> mitochondrial<br />
DNA depletion syndromes. J Inherit Metab Dis 32 143-158.<br />
Galassi, G., Lamantea, E., Invernizzi, F., Tavani, F., Pisano, I., Ferrero, I., Palmieri, L., Zeviani, M. (2008).<br />
Additive effects <strong>of</strong> POLG1 and ANT1 mutations <strong>in</strong> a complex encephalomyopathy. Neuromuscul Disord<br />
18 465-70.<br />
Massa V, Fernandez-Vizarra E, Alshahwan S, Bakhsh E, G<strong>of</strong>fr<strong>in</strong>i P, Ferrero I, Mereghetti P, D'Adamo P,<br />
Gaspar<strong>in</strong>i P, Zeviani M. (2008). Severe Infantile Encephalomyopathy Caused by a Mutation <strong>in</strong> COX6B1, a<br />
Nucleus-Encoded Subunit <strong>of</strong> Cytochrome C Oxidase. Am J Hum Genet. 82 1281-1289.<br />
Massa, V., Fernandez-Vizarra, E., Alshahwan, S., Bakhsh, E., G<strong>of</strong>fr<strong>in</strong>i, P., Ferrero, I., Mereghetti, P.,<br />
D'Adamo, P., Gaspar<strong>in</strong>i, P., Zeviani, M. (2008). Severe <strong>in</strong>fantile encephalomyopathy caused by a<br />
mutation <strong>in</strong> COX6B1, a nucleus-encoded subunit <strong>of</strong> cytochrome c oxidase. Am J Hum Genet 82 1281-<br />
1289.<br />
Barberio, C., Bianchi, L., P<strong>in</strong>zauti, F., Lodi, T., Ferrero, I., Pols<strong>in</strong>elli, M., Casalone, E. (2007). Induction and<br />
characterization <strong>of</strong> morphologic mutants <strong>in</strong> a natural Saccharomyces cerevisiae stra<strong>in</strong>. Can J Microbiol 53<br />
223-230.<br />
Baruff<strong>in</strong>i, E., Ferrero, I., Foury, F. (2007). Mitochondrial DNA defects <strong>in</strong> Saccharomyces cerevisiae caused<br />
by functional <strong>in</strong>teractions between DNA polymerase gamma mutations associated with disease <strong>in</strong><br />
human. Biochim Biophys Acta 1772 1225-35.<br />
Fernandez-Vizarra E, Bugiani M, G<strong>of</strong>fr<strong>in</strong>i P, Carrara F, Far<strong>in</strong>a L, Procopio E, Donati A, Uziel G, Ferrero I,<br />
Zeviani M. (2007). Impaired complex III assembly associated with BCS1L gene mutations <strong>in</strong> isolated<br />
mitochondrial encephalopathy. Hum Mol Genet. 16 1241-1252.<br />
Valente, L., Tiranti, V., Marsano, R.M., Malfatti, E., Fernandez-Vizarra, E., Donn<strong>in</strong>i, C., Mereghetti, P., De<br />
Gioia, L., Burl<strong>in</strong>a, A., Castellan, C., Comi, G.P., Savasta, S., Ferrero, I., Zeviani, M. (2007). Infantile<br />
encephalopathy and defective mitochondrial DNA translation <strong>in</strong> patients with mutations <strong>of</strong><br />
mitochondrial elongation factors EFG1 and EFTu. Am J Hum Genet 80 44-58.<br />
Baruff<strong>in</strong>i, E., Lodi, T., Dallabona, C., Puglisi, A., Zeviani, M., Ferrero, I. (2006). Genetic and chemical rescue<br />
<strong>of</strong> the Saccharomyces cerevisiae phenotype <strong>in</strong>duced by mitochondrial DNA polymerase mutations<br />
associated with progressive external ophthalmoplegia <strong>in</strong> humans. Hum Mol Genet 15 2846-55.<br />
Sp<strong>in</strong>azzola, A., Viscomi, C., Fernandez-Vizarra, E., Carrara, F., D'Adamo, P., Calvo, S., Marsano, R.M.,<br />
Donn<strong>in</strong>i, C., Weiher, H., Strisciuglio, P., Par<strong>in</strong>i, R., Sarzi, E., Chan, A., DiMauro, S., Rötig, A., Gaspar<strong>in</strong>i, P.,<br />
Ferrero, I., Mootha, V.K., Tiranti, V., Zeviani, M. (2006). MPV17 encodes an <strong>in</strong>ner mitochondrial<br />
membrane prote<strong>in</strong> and is mutated <strong>in</strong> <strong>in</strong>fantile hepatic mitochondrial DNA depletion. Nat Genet 38 570-5.<br />
Fontanesi, F., Viola, A.M., Ferrero, I. (2006). Heterologous complementation <strong>of</strong> the Klaac null mutation <strong>of</strong><br />
Kluyveromyces lactis by the Saccharomyces cerevisiae AAC3 gene encod<strong>in</strong>g the ADP/ATP carrier. FEMS<br />
Yeast Res 6 414-20.<br />
Lodi, T., Bove, C., Fontanesi, F., Viola, A.M., Ferrero, I. (2006). Mutation D104G <strong>in</strong> ANT1 gene:<br />
Complementation study <strong>in</strong> Saccharomyces cerevisiae as a model system. Biochem Biophys Res Commun
341 810-5<br />
Palmieri L, Alberio S, Pisano I, Lodi T, Meznaric-Petrusa M, Zidar J, Santoro A, Scarcia P, Fontanesi F,<br />
Lamantea E, Ferrero I, Zeviani M (2005). Complete loss-<strong>of</strong>-function <strong>of</strong> the heart/muscle-specific aden<strong>in</strong>e<br />
nucleotide translocator is associated with mitochondrial myopathy and cardiomyopathy. Hum Mol Genet<br />
14 3079-88.<br />
Fontanesi F, Palmieri L, Scarcia P, Lodi T, Donn<strong>in</strong>i C, Limongelli A, Tiranti V, Zeviani M, Ferrero I, Viola AM<br />
(2004). Mutations <strong>in</strong> AAC2, equivalent to human adPEO-associated ANT1 mutations, lead to defective<br />
oxidative phosphorylation <strong>in</strong> Saccharomyces cerevisiae and affect mitochondrial DNA stability. Hum Mol<br />
Genet 13 923-34.<br />
Area di <strong>in</strong>teresse identificata<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Yeast model for human health: <strong>Neurodegenerative</strong> diseases;<br />
Alzheimer’s disease<br />
“Identification and characterization <strong>of</strong> nuclear genes responsible for human<br />
mitochondrial disorders” Project coord<strong>in</strong>ated by Massimo Zeviani PhD, Unit <strong>of</strong><br />
Molecular Neurogenetics, IRCCS Foundation Neurological Institute FC. Besta.<br />
Ente f<strong>in</strong>anziatore Telethon Italy – Tree years project – 2008-2010<br />
Durata progetto Three years<br />
Abstract del progetto<br />
Albeit still <strong>in</strong>sufficiently acknowledged, mitochondrial disease encompasses a<br />
substantial fraction <strong>of</strong> human <strong>in</strong>herited disorders. The <strong>in</strong>clusive term<br />
"mitochondrial medic<strong>in</strong>e" has recently been co<strong>in</strong>ed to account for the broad<br />
functional implications <strong>of</strong> mitochondria <strong>in</strong> normal and disease conditions.<br />
Mitochondrial disorders are very heterogeneous, can affect any organ, at any<br />
age, and responsible genes are still miss<strong>in</strong>g <strong>in</strong> most cases. These features make<br />
the diagnosis <strong>of</strong> mitochondrial disease difficult, and <strong>in</strong> many <strong>in</strong>stances cause<br />
these disorders to be overlooked. Effective therapy is miss<strong>in</strong>g as well.<br />
Nevertheless, great progress has been made <strong>in</strong> this field <strong>in</strong> the past decade,<br />
thanks to the discovery <strong>of</strong> new genes relevant to disease, and the <strong>in</strong>vestigation<br />
<strong>of</strong> the physiopathology <strong>of</strong> these disorders through a multidiscipl<strong>in</strong>ary approach.<br />
In recent years we have been f<strong>in</strong>d<strong>in</strong>g several new disease genes, which are<br />
responsible for well−def<strong>in</strong>ed mitochondrial syndromes. However, the function <strong>of</strong><br />
these genes is still completely or largely unknown.<br />
We shall also create disease models user the friendly systems yeast recomb<strong>in</strong>ant<br />
stra<strong>in</strong>s. The study <strong>of</strong> yeast model will help us understand the physiopathology <strong>of</strong><br />
the disorders caused by the defective genes, ga<strong>in</strong> <strong>in</strong>sight on their function and<br />
related metabolic pathways, and devise sensible and specific therapeutic<br />
strategies.
Nome Luca Ferraro<br />
Contatti<br />
frl@unife.it<br />
Istituto/Dipartimento Dept. <strong>of</strong> Cl<strong>in</strong>ical and Experimental Medic<strong>in</strong>e<br />
Pharmacology Section, University <strong>of</strong> Ferrara, Italy<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse<br />
identificata<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
Pharmacology: B. Drug screen<strong>in</strong>g .<br />
Innovative technologies for the therapy <strong>of</strong> the neurodegenerative<br />
diseases<br />
NeuroBioTech: Innovative technologies for the therapy <strong>of</strong> the<br />
neurodegenerative diseases (Emilia Romagna, Italy)<br />
2009-2012<br />
The aim <strong>of</strong> NeuroBioTech is the development <strong>of</strong> a precompetitive<br />
<strong>research</strong> activity to f<strong>in</strong>d new therapeutic strategies for the treatment<br />
<strong>of</strong> Alzheimer disease (AD) and other correlated neurodegenerative<br />
pathologies. The experimental activity <strong>of</strong> our <strong>research</strong> unit is aimed<br />
to develop and optimize <strong>in</strong> vivo models (microdialysis, behavioural<br />
tests) and ex vivo models (cerebral tissue), which will be applied <strong>in</strong><br />
precl<strong>in</strong>ical test<strong>in</strong>g activity for the screen<strong>in</strong>g <strong>of</strong> molecules with anti-<br />
Alzheimer activity and for the identification <strong>of</strong> new therapeutic<br />
targets <strong>in</strong> AD. The eventual alterations <strong>of</strong> endogenous<br />
neurotransmitter levels (glutamate, GABA, noradrenal<strong>in</strong>e,<br />
dopam<strong>in</strong>e) will be evaluated <strong>in</strong> the above reported <strong>in</strong> vivo and ex<br />
vivo experimental models. In particular, the eventual modifications<br />
<strong>of</strong> neurochemical signal will be analysed <strong>in</strong> mice with mutations <strong>of</strong><br />
APP and/or PS and/or tau. Furthermore, it will be studied if the<br />
CHF5074 (new modulator <strong>of</strong> gamma secretases) adm<strong>in</strong>istration will<br />
be able to correct these neurochemical alterations. Then, the effect<br />
<strong>of</strong> CHF5074 on the APP metabolism and on APP molecular<br />
<strong>in</strong>teractions will be studied.
2. PHARMACOLOGY<br />
C- Drug Delivery
Country: Italy<br />
Contact person: Pr<strong>of</strong>. MA Vandelli, Dr. G Tosi (gtosi@unimore.it) Università di Modena e Reggio<br />
Date: 14-01-2009<br />
I) Strategic Issues (Justification <strong>of</strong> the importance <strong>of</strong> the issue)<br />
NANOTECHNOLOGY FOR HEALTH: THE APPLICATION IN THE BRAIN DISEASES<br />
The application <strong>of</strong> nanotechnology to health raises high expectations for a more efficient and affordable<br />
healthcare and has the potential <strong>of</strong> deliver<strong>in</strong>g promis<strong>in</strong>g solutions to many illnesses. Even if several areas <strong>of</strong><br />
medical care could benefit from the advantages that nanotechnology can <strong>of</strong>fer, a selective CNS drug<br />
delivery and target<strong>in</strong>g could improve the therapy <strong>of</strong> bra<strong>in</strong> diseases which have a tremendous negative<br />
impact not only on the patient himself but also on the whole society and l<strong>in</strong>ked social and <strong>in</strong>surance<br />
systems.<br />
The project could be also the answer to the fragmentation <strong>in</strong> nanomedic<strong>in</strong>e <strong>research</strong> <strong>in</strong> Europe establish<strong>in</strong>g<br />
a clear strategic vision <strong>in</strong> the area.<br />
In order for CNS drugs to penetrate to the bra<strong>in</strong> tissue, they must pass through the blood bra<strong>in</strong> barrier<br />
(BBB). Many <strong>of</strong> the compounds that otherwise would be effective <strong>in</strong> treat<strong>in</strong>g CNS diseases are excluded<br />
from reach<strong>in</strong>g a sufficient concentration <strong>in</strong> the bra<strong>in</strong> tissue and produc<strong>in</strong>g the desired therapeutic effect. It<br />
has been estimated that only 2% <strong>of</strong> the possible CNS therapeutic compounds can cross the BBB.<br />
Thus, drug delivery to the bra<strong>in</strong> is a challenge, because this tissue benefits from a very efficient protective<br />
barrier. Even if several disorders and diseases that affect the bra<strong>in</strong> can lead to some loss <strong>of</strong> BBB <strong>in</strong>tegrity,<br />
this barrier represents an <strong>in</strong>surmountable obstacle for many drugs able to treat pathologies <strong>in</strong> which the<br />
BBB <strong>in</strong>tegrity is preserved.<br />
The same mechanisms that protect the bra<strong>in</strong> from foreign substances also restrict the entry <strong>of</strong> many<br />
potentially therapeutic agents. The blood bra<strong>in</strong> barrier is the major barrier to the passage <strong>of</strong> active<br />
molecules from the blood compartment to the bra<strong>in</strong>. It is located at the level <strong>of</strong> the bra<strong>in</strong> capillaries, where<br />
there is a convergence <strong>of</strong> different cell types: endothelial cells, pericytes, astrocytes and microglias. The<br />
bra<strong>in</strong> microvessel endothelial cells that form the BBB, display important morphological characteristics such<br />
as the presence <strong>of</strong> tight junctions between the cells, the absence <strong>of</strong> fenestrations and a dim<strong>in</strong>ished<br />
p<strong>in</strong>ocytic activity, that together help to restrict the passage <strong>of</strong> compounds from the blood <strong>in</strong>to the<br />
extracellular environment <strong>of</strong> the bra<strong>in</strong>.<br />
A promis<strong>in</strong>g strategy for the delivery <strong>of</strong> therapeutics to CNS could be to associate drugs without any<br />
modification (prodrugs, for example) to colloidal carriers. These vehicles could deliver numerous drug<br />
molecules at specific sites by coupl<strong>in</strong>g ligands to the surface <strong>of</strong> the colloids which can be adm<strong>in</strong>istered<br />
<strong>in</strong>travenously for chronic treatment. Moreover, ow<strong>in</strong>g to their poor stability <strong>in</strong> biological fluids, rapid<br />
enzymatic degradation, unfavourable pharmacok<strong>in</strong>etic properties and lack <strong>of</strong> diffusion towards the CNS,<br />
biotech drugs (peptides, prote<strong>in</strong>s, genes and antisense drugs) may be advantageously formulated <strong>in</strong> bra<strong>in</strong><br />
targeted protective nanoconta<strong>in</strong>ers.
Colloidal drug carriers <strong>in</strong>clude micelles, emulsions, liposomes and nanoparticles (nanospheres and<br />
nanocapsules). So far, only liposomes and nanoparticles have been largely exploited for bra<strong>in</strong> drug delivery.<br />
Recently, the first liposomal preparation <strong>of</strong> a drug reached the market: it is a formulation <strong>of</strong> the antitumor<br />
drug Doxorubic<strong>in</strong> loaded <strong>in</strong>to PEGyilated liposomes for the i.v. treatment <strong>of</strong> bra<strong>in</strong> tumors (commercial<br />
formulation Caelyx). In contrast to liposomes, and despite the abudance <strong>of</strong> experimental works and<br />
achievements <strong>in</strong> the field <strong>of</strong> polymeric nanoparticle (Np) technology that show the ability <strong>of</strong> properly<br />
functionalized nanoparticles to cross the BBB, no nanoparticle-based drug formulations have been<br />
marketed so far. Drugs encapsulated <strong>in</strong>to poly(butylcyanoacrylate) (PBCA) Np covered by the surface active<br />
agent polysorbate 80 (Doxorubic<strong>in</strong>. Loperamide, Dalarg<strong>in</strong>, the anticonvulsivant MRZ 2/576), on the surface<br />
<strong>of</strong> HSA Np (the model drug loperamide), unable to cross BBB when adm<strong>in</strong>istered alone, were able to exert<br />
an appropriate pharmacological effect. Despite <strong>in</strong>terest<strong>in</strong>g results, PBCA Np have limitations that may<br />
preclude or at least limit their potential cl<strong>in</strong>ical applications; its use for humans is at the moment not<br />
approved by FDA. Thus there is a need for the development <strong>of</strong> nanoparticles based for example on the<br />
polymer poly(D,L-lactide-co-glycolide (PLGA), which is approved by FDA for human use, and very promis<strong>in</strong>g<br />
results were found <strong>in</strong> the literature.<br />
So far, only a low amount <strong>of</strong> <strong>in</strong>jected nanoparticle dose is able to reach the bra<strong>in</strong> (<strong>in</strong> the order <strong>of</strong> 1%); thus<br />
active target<strong>in</strong>g <strong>of</strong> the BBB represents a promis<strong>in</strong>g non <strong>in</strong>vasive strategy for improv<strong>in</strong>g drug delivery to<br />
bra<strong>in</strong>. In fact, the use <strong>of</strong> ligands specific for receptors present <strong>in</strong> high percentage on the BBB could<br />
represent the way to realize a selective delivery <strong>of</strong> nanoparticles, and thus <strong>of</strong> the embedded drugs, to CNS.<br />
With this aim, positive results were obta<strong>in</strong>ed when nanocarriers have been conjugated to ligands (OX26<br />
mAb; transferr<strong>in</strong>, apolipoprote<strong>in</strong>s or surface-active agents (polysorbate-80) able to b<strong>in</strong>d some <strong>of</strong> the<br />
apolipoprote<strong>in</strong>s present <strong>in</strong> blood that confer the ability to cross the BBB, <strong>in</strong>sul<strong>in</strong>, folic acid) for active<br />
target<strong>in</strong>g, but other ligands have to be discovered and tested for their ability to carry <strong>in</strong>to CNS drug-loaded<br />
nanoparticles.<br />
The application <strong>of</strong> nanotechnology to health raises high expectations for a more efficient and affordable<br />
healthcare and has the potential <strong>of</strong> deliver<strong>in</strong>g promis<strong>in</strong>g solutions to many illnesses. Even if several areas <strong>of</strong><br />
medical care could benefit from the advantages that nanotechnology can <strong>of</strong>fer, a selective CNS drug<br />
delivery and target<strong>in</strong>g could improve the therapy <strong>of</strong> bra<strong>in</strong> diseases which have a tremendous negative<br />
impact not only on the patient himself but also on the whole society and l<strong>in</strong>ked social and <strong>in</strong>surance<br />
systems.<br />
The project could be also the answer to the fragmentation <strong>in</strong> nanomedic<strong>in</strong>e <strong>research</strong> <strong>in</strong> Europe establish<strong>in</strong>g<br />
a clear strategic vision <strong>in</strong> the area.<br />
II) Priority areas<br />
Health; <strong>Neurodegenerative</strong> Diseases<br />
Innovative strategies for the treatment <strong>of</strong> bra<strong>in</strong> pathologies<br />
Nanotechnology applied to Health, Nanomedic<strong>in</strong>e<br />
III) Impact<br />
The pharmaceutical treatment <strong>of</strong> central nervous system (CNS) disorders is the second largest area <strong>of</strong><br />
therapy, follow<strong>in</strong>g cardiovascular disease. U.S. sales for CNS drugs exceeded $ 53 billion <strong>in</strong> 2002 to 2003.
CNS disorders are five <strong>of</strong> the top 10 causes <strong>of</strong> disability. Stroke is the third lead<strong>in</strong>g cause <strong>of</strong> death and costs<br />
the economy $ 40 billion annually. Fifteen million people suffer from Alzheimer’s disease, which is the<br />
second most expensive disease to the economy at $ 100 billion annually. Many bra<strong>in</strong> diseases do not have<br />
satisfactory treatments. Clearly, CNS disorders are an important current and future priority for the<br />
pharmaceutical <strong>in</strong>dustry.<br />
Moreover, the development <strong>of</strong> new drug molecules is expensive and time-consum<strong>in</strong>g. The average cost and<br />
time for the development <strong>of</strong> a new chemical entity are much higher (approximately $ 500 million and 10-12<br />
years, respectively) than those required to develop a novel drug delivery system. Hence, there is a need for<br />
evolv<strong>in</strong>g an exist<strong>in</strong>g drug molecule from a conventional form to a novel delivery system that can<br />
significantly improve its performance <strong>in</strong> terms <strong>of</strong> patient compliance, safety and efficacy by target<strong>in</strong>g to the<br />
specific site.<br />
Partner <strong>in</strong>volved:<br />
• Italy (ACADEMY) (PROPONENT) (Pr<strong>of</strong>. Vandelli, Department <strong>of</strong> Pharmaceutical Sciences, Dean <strong>of</strong><br />
Faculty <strong>of</strong> Pharmacy, University <strong>of</strong> Modena and Reggio Emilia, T.e.Far.T.I.)<br />
o Nanotechnology, nanoparticles, liposome, surface modification, derivatization <strong>of</strong> biodegradable<br />
polymers, <strong>in</strong> vivo experience on animals<br />
o In vivo pharmacology expertise on CNS drug efficacy<br />
o Preparation and load<strong>in</strong>g <strong>of</strong> eng<strong>in</strong>eered Np with selected drugs or active substance<br />
• Switzerland (ACADEMY)<br />
o Nanotechnology, Coupl<strong>in</strong>g methodology with preformed Np , <strong>in</strong> vitro tests on BBB culture<br />
• England (ACADEMY)<br />
o Nanomedic<strong>in</strong>es based on novel nanomaterials <strong>of</strong> synthetic and biological nature<br />
• France A (SME)<br />
o In vivo models <strong>of</strong> CNS disease (Park<strong>in</strong>son’s Disease, Bra<strong>in</strong> Tumor Glioblastoma, Stroke models)<br />
o In vivo toxicity<br />
o PK, Biodistribution studies<br />
• France B (ACADEMY)<br />
o <strong>in</strong> vitro BBB (astrocyte/endothelial cell co-cultures), models <strong>of</strong> pathological BBB (<strong>in</strong>flamed BBB)<br />
o HTS platform for the development <strong>of</strong> peptide-vectors for Np, drug and imag<strong>in</strong>g agent target<strong>in</strong>g to<br />
the CNS across the BBB via receptor mediated trancytosis (RMT).<br />
• France C (ACADEMY)<br />
o Gene therapy<br />
� Delivery <strong>of</strong> siRNA targeted aga<strong>in</strong>st the prion prote<strong>in</strong> (<strong>in</strong> vitro and <strong>in</strong> vivo)<br />
� Delivery <strong>of</strong> growth factors (bdnf etc..).<br />
� <strong>in</strong> vivo and <strong>in</strong> vitro experimental models.<br />
• France D (SME)<br />
o Imag<strong>in</strong>g techniques<br />
o Optical Imag<strong>in</strong>g - Sc<strong>in</strong>tigraphy - Autoradiography<br />
• Portugal (SME)<br />
o Synthesis <strong>of</strong> peptides and antibodies<br />
o Gene therapy<br />
• Czech Republic (ACADEMY)<br />
o Toxicity <strong>of</strong> Nanoparticles<br />
o Interaction with drug metabolis<strong>in</strong>g enzymes<br />
• Denmark (ACADEMY)<br />
o In vivo experiments on olivocerebellar degeneration and Purk<strong>in</strong>je cell death and excitotoxic model<br />
<strong>of</strong> epileptic seizures
o Novel peptides for the eng<strong>in</strong>eer<strong>in</strong>g <strong>of</strong> the Np (15 am<strong>in</strong>o acids (aa) derived from the (61 aa)<br />
endogenous prote<strong>in</strong> metallothione<strong>in</strong> (MT).<br />
• Israel (SME)<br />
o Imag<strong>in</strong>g<br />
o Amyotrophic Lateral Sclerosis
Nome Angelo Montenero<br />
Contatti<br />
angelo.montenero@unipr.it<br />
0521905553<br />
Istituto/Dipartimento Dipartimento di Chimica G.I.A.F. – Università degli Studi di Parma<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse identificata Our proposal <strong>in</strong> this study is the use <strong>of</strong> sol–gel technique to synthesize<br />
mesoporous and nanostructured reservoirs which could be implanted<br />
giv<strong>in</strong>g a susta<strong>in</strong>ed release <strong>of</strong> the drug molecules. The devices will be<br />
constituted by a matrix that conta<strong>in</strong>s the drug dispersed or suspended <strong>in</strong><br />
a f<strong>in</strong>e state. The mechanism, as well as the k<strong>in</strong>etics and rate <strong>of</strong> drug<br />
release will depend upon the physicochemical properties <strong>of</strong> the drug, the<br />
materials, and the device construction. They will be basically made <strong>of</strong><br />
oxides derived from Titanium, Silicon (or other metals) alkoxides. The<br />
<strong>in</strong>ner structure <strong>of</strong> the <strong>in</strong>organic matrix will be tailored (play<strong>in</strong>g with the<br />
conditions <strong>of</strong> reaction and the relative amounts <strong>of</strong> the alkoxides, for<br />
example) to the specific peculiarity <strong>of</strong> the substance and to the length <strong>of</strong><br />
the adm<strong>in</strong>istration period.<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
The use <strong>of</strong> alkyl substituted alkoxides together with non-substituted<br />
alkoxides could be useful to modify the <strong>in</strong>ternal network structure, which<br />
depends on the respective rates <strong>of</strong> hydrolysis and condensation, and<br />
therefore on steric h<strong>in</strong>drance, <strong>in</strong>ductive effects (<strong>of</strong> alkyl substituents) and<br />
functionality (number <strong>of</strong> alkoxy groups) on the central atom as well as on<br />
catalysis and solvent.<br />
In cooperation with some European and Mexican <strong>research</strong> centers we are<br />
work<strong>in</strong>g with sol-gel devices used to release anticonvulsant drugs, such as<br />
phenyto<strong>in</strong> and valproic acid; similar reservoirs could be employed with<br />
drugs for Alzheimer’s treatment.<br />
Basic Research <strong>in</strong> Advanced Innovative Nanomaterials: Applications to<br />
the Solution <strong>of</strong> Bra<strong>in</strong> Disorders<br />
(Identifier: FP7-NMP-2007-LARGE-1)<br />
Ente f<strong>in</strong>anziatore Università Autonoma Metropolitana di Città del Messico - CEE<br />
Durata progetto Two years<br />
Abstract del progetto The aim <strong>of</strong> the group is to study the treatment <strong>of</strong> three serious<br />
neurological disorders: Epilepsy, Park<strong>in</strong>son’s and Alzheimer’s, us<strong>in</strong>g an<br />
<strong>in</strong>terbra<strong>in</strong> nanodevice to deliver the drug <strong>in</strong> front <strong>of</strong> damaged membrane<br />
neurons, <strong>in</strong> order to obta<strong>in</strong> a potential effect and avoid the<br />
decomposition <strong>of</strong> the molecule.<br />
Nanostructured materials biocompatible with bra<strong>in</strong> tissue will be<br />
developed. The solids will <strong>in</strong>clude ordered silica (SiO2) and ordered titania<br />
(TiO2), nanostructured manganese oxides (MnOx) cryptomelane type. Also<br />
the sol-gel nanomaterials: SiO2, TiO2, ZrO2, HfO2, hybrid nanostructured<br />
materials and monoliths will be prepared us<strong>in</strong>g a variety <strong>of</strong> alkoxides and
y thoughtfully vary<strong>in</strong>g synthesis conditions. All the <strong>in</strong>ert matrices will be<br />
designed us<strong>in</strong>g s<strong>of</strong>t chemistry and will require functionalization <strong>in</strong> order<br />
to be biocompatible with the surround<strong>in</strong>g neural membranes. The drugs<br />
to be encapsulated with<strong>in</strong> the devices <strong>in</strong>clude for Epilepsy, valproic acid,<br />
sodium phenyto<strong>in</strong>e, leviracetam and topiramate; for Park<strong>in</strong>son, L-Dopa,<br />
and dopam<strong>in</strong>e. For Alzheimer the aim is to quantify the change <strong>in</strong><br />
concentration <strong>of</strong> Filaments tangles Helicoidally (PHFs) and<br />
glyceraldehyde-3-phosphate dehydrogenase (GAPDH), <strong>in</strong> presence <strong>of</strong><br />
selective seroton<strong>in</strong>e adsorbent nanomaterial.
Nome MASSERINI MASSIMO<br />
Contatti<br />
0264488203<br />
Massimo.masser<strong>in</strong>i@unimib.it<br />
Istituto/Dipartimento Dip. Medic<strong>in</strong>a Sperimentale<br />
Via Cadore 48<br />
20052 Monza<br />
Università Milano Bicocca<br />
Proposta di ricerca<br />
New nanodevices overcom<strong>in</strong>g the blood-bra<strong>in</strong> barrier, for the therapy <strong>of</strong> Alzheimer Disease<br />
Nanodevices <strong>of</strong>fer an attractive mean <strong>of</strong> perform<strong>in</strong>g therapy and diagnosis with their high potential for<br />
multi-task functionalization. Theoretically, multi-task functionalization may confer on nanodevices a wide<br />
array <strong>of</strong> properties, such as stealth characteristics once they enter the bloodstream (ability to avoid the<br />
reticulo-endothelial system, RES), ability to cross the blood-bra<strong>in</strong> barrier (BBB) and, <strong>of</strong> course, ability to<br />
reach a target. In addition, s<strong>in</strong>ce it is possible to confer on them features <strong>of</strong> biocompatibility, lack <strong>of</strong><br />
toxicity and immunogenicity, biodegradability, simple preparation and high physical stability, the<br />
nanotechnology -based systems are <strong>in</strong>telligent tools for diagnostics, prognostics, and controlled and<br />
susta<strong>in</strong>ed delivery <strong>of</strong> therapeutic agents to specific targets .<br />
However, the BBB represents a formidable challenge to the delivery <strong>of</strong> therapeutic agents to the central<br />
nervous system, and <strong>in</strong> particular for the treatment <strong>of</strong> Alzheimer disease, due to its complex, high<br />
selectivity, to the passage <strong>of</strong> desired molecules <strong>in</strong>to the bra<strong>in</strong> parenchyma. This fact represents an<br />
handicap also for test<strong>in</strong>g new and future drugs. These issues has not yet been solved with the exist<strong>in</strong>g<br />
nanotechnologies, and need strong <strong>in</strong>vestments <strong>in</strong> the future years. For this, completely new approaches<br />
are necessary.<br />
The proposal is to realize new nano-devices, for overcom<strong>in</strong>g the BBB, for the therapy <strong>of</strong> the Alzheimer<br />
disease. For this purpose, new approaches should be sought,, such as the possibility <strong>of</strong> nanodevices to<br />
carry molecular factories able to perform small tasks; example are the ability to enzymatically modify the<br />
architecture <strong>of</strong> the neuronal membrane modify<strong>in</strong>g the activity <strong>of</strong> resident molecules <strong>in</strong>volved <strong>in</strong> the<br />
mechanisms <strong>of</strong> the disease.<br />
Area di <strong>in</strong>teresse identificata Nanomedic<strong>in</strong>e<br />
F<strong>in</strong>anziamenti ricevuti<br />
2.930.387,00€<br />
Titolo progetto Nanoparticles for therapy and diagnosis <strong>of</strong> Alazheimer Disease<br />
Ente f<strong>in</strong>anziatore EC<br />
Durata progetto 5 y (2008-2013)<br />
Abstract del progetto A hallmark <strong>of</strong> the disease <strong>in</strong> the AD bra<strong>in</strong> is extracellular aggregates<br />
(plaques) <strong>of</strong> the cytotoxic peptide β-amyloid (Aβ). This project <strong>in</strong>tends to<br />
use nanoparticles (NPs) for therapy and diagnosis, s<strong>in</strong>gly or comb<strong>in</strong>ed<br />
(theranostics), focus<strong>in</strong>g on bra<strong>in</strong> Aβ as the target. Bra<strong>in</strong> and blood Aβ are<br />
<strong>in</strong> equilibrium across the blood-bra<strong>in</strong> barrier (BBB), so the project also<br />
considers blood Aβ as a target.<br />
Different NPs will be multiple-functionalized with: i) molecules <strong>in</strong>teract<strong>in</strong>g<br />
with Aβ, ii) molecules stimulat<strong>in</strong>g BBB cross<strong>in</strong>g, ii) PET or MRI contrast<br />
agents. Artificial and cellular models will be used ; the efficacy <strong>of</strong> NPs will<br />
eventually be evaluated <strong>in</strong> rodent models <strong>of</strong> AD. Different routes <strong>of</strong><br />
adm<strong>in</strong>istration (i.v., oral, nasal) or different protocols (two-step, NP
cocktails, aerosols) will be employed to boost NP bra<strong>in</strong> delivery. The<br />
prediction is that NPs will range, detect, disaggregate, and remove bra<strong>in</strong><br />
Aβ. Besides this action, NPs will <strong>in</strong>teract with blood Aβ, draw<strong>in</strong>g out the<br />
excess <strong>of</strong> bra<strong>in</strong> peptide by a “s<strong>in</strong>k” effect.
2. PHARMACOLOGY<br />
D-Novel Drugs
Nome<br />
Contatti<br />
Lamberto Maffei<br />
maffei@<strong>in</strong>.cnr.it<br />
Istituto/Dipartimento Istituto di Neuroscienze del CNR, Pisa<br />
Proposta di ricerca<br />
In human subjects, build<strong>in</strong>g on the results obta<strong>in</strong>ed <strong>in</strong> subjects with Mild Cognitive Impairment (MCI) or <strong>in</strong><br />
the very <strong>in</strong>itial stages <strong>of</strong> Alzheimer’s Disease (AD) with the ongo<strong>in</strong>g project “Tra<strong>in</strong> the Bra<strong>in</strong>”, we plan to:<br />
extend the <strong>in</strong>tervention to a second group <strong>of</strong> subjects with MCI<br />
assess the efficacy <strong>of</strong> the tra<strong>in</strong><strong>in</strong>g employed <strong>in</strong> “Tra<strong>in</strong> the Bra<strong>in</strong>” <strong>in</strong> subjects <strong>in</strong> more advanced stages <strong>of</strong> AD<br />
determ<strong>in</strong>e the extent <strong>of</strong> the tra<strong>in</strong><strong>in</strong>g beneficial effects by means <strong>of</strong> extensive follow up <strong>of</strong> the subjects<br />
<strong>in</strong>cluded <strong>in</strong> “Tra<strong>in</strong> the Bra<strong>in</strong>”<br />
determ<strong>in</strong>e the most effective components <strong>of</strong> the tra<strong>in</strong><strong>in</strong>g<br />
In mur<strong>in</strong>e AD models, we plan to:<br />
characterize the cellular and molecular mechanisms underly<strong>in</strong>g the action <strong>of</strong> Intranasal adm<strong>in</strong>istration (IA)<br />
<strong>of</strong> Neurotroph<strong>in</strong>s and <strong>of</strong> Environmental Enrichment (EE) <strong>in</strong> prevent<strong>in</strong>g the onset or <strong>in</strong> ameliorat<strong>in</strong>g the<br />
progression <strong>of</strong> the disease.<br />
develop new non <strong>in</strong>vasive strategies aimed at prevent<strong>in</strong>g or rescu<strong>in</strong>g cognitive deficits and at prevent<strong>in</strong>g<br />
the onset or reduc<strong>in</strong>g the progression <strong>of</strong> the neurodegeneration<br />
We shall also evaluate whether exposure to an “impoverished” environment accelerates the cognitive<br />
decl<strong>in</strong>e <strong>in</strong> animal models <strong>of</strong> AD.<br />
We have already exploited IA <strong>of</strong> NGF (De Rosa et al., 2005) to rescue visual memory deficits <strong>in</strong> a mouse<br />
model <strong>of</strong> NGF deprivation which exhibits all hallmarks <strong>of</strong> human AD and we have recently shown <strong>in</strong> the<br />
same model that EE prevents the onset <strong>of</strong> memory deficits and ameliorates AD hallmarks (Berardi et al.,<br />
2007). We have also recently shown that EE and fluoxet<strong>in</strong>e treatment enhances adult visual cortical<br />
plasticity to the po<strong>in</strong>t <strong>of</strong> promot<strong>in</strong>g recovery from defective visual development (Sale et al., 2007; Maya<br />
Vetencourt et al., 2008; Sale et al., 2009); cortical plasticity enhancement seems highly effective <strong>in</strong><br />
rescu<strong>in</strong>g cognitive deficits <strong>in</strong> models <strong>of</strong> neurodegeneration even <strong>in</strong> advanced stages <strong>of</strong> neuronal loss<br />
(Fischer et al, 2007).<br />
Area di <strong>in</strong>teresse identificata<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
- New treatment strategies<br />
- Translational <strong>research</strong><br />
Tra<strong>in</strong> the bra<strong>in</strong>: cl<strong>in</strong>ical and experimental<br />
study <strong>of</strong> the efficacy <strong>of</strong> cognitive tra<strong>in</strong><strong>in</strong>g and<br />
physical exercise <strong>in</strong> dementia
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
Fondazione Cassa di Risparmio di Pisa<br />
May 2009-May 2012<br />
Age-dependent cognitive decl<strong>in</strong>e is dest<strong>in</strong>ed to become a highly<br />
impact<strong>in</strong>g problem at the cl<strong>in</strong>ical, economical and assistance level. Age,<br />
<strong>in</strong>deed, is the major risk factor for dementia. In Italy, there are around<br />
700.000 patients diagnosed with dementia and around 100.000 new<br />
cases every year.<br />
Among the pathologies which may lead to dementia, Alzheimer's Disease<br />
(AD) and vascular dementia (VaD) are by far the most frequent.<br />
At present, there are no effective therapeutic strategies for AD or VaD,<br />
which are still pathologies orphan <strong>of</strong> treatment. It is therefore more and<br />
more apparent the need <strong>of</strong> test<strong>in</strong>g, validat<strong>in</strong>g and implement<strong>in</strong>g new<br />
strategies aimed at prevent<strong>in</strong>g and/or slow<strong>in</strong>g down cognitive decl<strong>in</strong>e,<br />
start<strong>in</strong>g from the early stages <strong>of</strong> the disease. We propose to assess the<br />
efficacy <strong>of</strong> a comb<strong>in</strong>ation <strong>of</strong> physical exercise and cognitive tra<strong>in</strong><strong>in</strong>g <strong>in</strong><br />
slow<strong>in</strong>g down or arrest<strong>in</strong>g the progression <strong>of</strong> symptoms <strong>in</strong> subjects at risk<br />
<strong>of</strong> or at the very <strong>in</strong>itial stages <strong>of</strong> AD and VaD. The scientific rationale for<br />
this proposal is described below.<br />
a): several studies <strong>in</strong> humans have demonstrated that the exposure to a<br />
cognitively and socially stimulat<strong>in</strong>g environment and physical exercise<br />
have beneficial effects on bra<strong>in</strong> function<strong>in</strong>g, especially <strong>in</strong> the elderly, and<br />
reduce the risk <strong>of</strong> develop<strong>in</strong>g dementia (e.g. Laur<strong>in</strong> et. al, 2001; Fratiglioni<br />
et al., 2004; Podewils et al., 2005; Marx, 2005; Kramer and Erickson,<br />
2007). The estimated reduction <strong>in</strong> the risk <strong>of</strong> develop<strong>in</strong>g dementia varies<br />
from study to study but generally ranges between 20 and 50%.<br />
b) In parallel, a large number <strong>of</strong> studies performed <strong>in</strong> animal models has<br />
demonstrated that physical exercise and expossure to a cognitive and<br />
socially stimulat<strong>in</strong>g environment (a comb<strong>in</strong>ation known as “enriched<br />
environment”, EE) ameliorates cognitive performance, slow down the<br />
decl<strong>in</strong>e associated with ag<strong>in</strong>g, are neuroprotective, and enhance neural<br />
plasticity (Cotman and Berchtoldt, 2002; Nithianatharajah and Hannan,<br />
2006). EE ameliorates cognitive deficits <strong>in</strong> animal models <strong>of</strong> AD (Adlard et<br />
al., 2005; Jankowsky et al., 2005) and is also capable to revert cognitive<br />
deficits when they are already well evident. These results show the EE<br />
potential as non pharmacological therapeutic strategy not only to prevent<br />
the onset <strong>of</strong> cognitive deficits but also to rescue them.<br />
Studies on the efficacy <strong>of</strong> a comb<strong>in</strong>ed physical and cognitive <strong>in</strong>tervention<br />
<strong>in</strong> subjects with dementia are very few and present methodological limits.<br />
AIMS<br />
Primary: To assess the efficacy <strong>of</strong> protocols <strong>of</strong> physical exercise and<br />
cognitive stimulation on the progression <strong>of</strong> the disease <strong>in</strong> subjects at risk<br />
<strong>of</strong>, or with AD and VaD <strong>in</strong> the <strong>in</strong>itial stages <strong>of</strong> the disease, identified<br />
through an advanced battery <strong>of</strong> diagnostic tests.<br />
Secondary: To develop a nonpharmacological preventive/therapeutic<br />
strategy easily applicable to humans and exploitable by the National and<br />
Regional Health Service and to study the underly<strong>in</strong>g cellular and<br />
molecular mechanism <strong>of</strong> action <strong>in</strong> animal models.
Nome Pr<strong>of</strong>. Aldo Andreani<br />
Contatti<br />
Pr<strong>of</strong>. Aldo Roda<br />
aldo.andreani@unibo.it Tel. +39 051 2099714 Fax: +39 051<br />
2099734<br />
aldo.roda@unibo.it Tel. +39 051 343398 Fax: +39 051<br />
343398<br />
Istituto/Dipartimento Dipartimento di Scienze Farmaceutiche - Università di Bologna<br />
Proposta di ricerca<br />
Via Belmeloro 6 40126 Bologna<br />
Synthesis and screen<strong>in</strong>g <strong>of</strong> new AChE/BuChE <strong>in</strong>hibitors<br />
The chol<strong>in</strong>ergic transmission <strong>in</strong> the central nervous system is important for the regulation <strong>of</strong> memory<br />
and learn<strong>in</strong>g process. Numerous studies have highlighted that the chol<strong>in</strong>ergic neurotransmission<br />
system is pr<strong>of</strong>oundly compromised <strong>in</strong> the bra<strong>in</strong> affected by Alzheimer’s disease (AD), with losses <strong>of</strong><br />
chol<strong>in</strong>ergic neurons and synapses occurr<strong>in</strong>g <strong>in</strong> forebra<strong>in</strong>, cortex, and hippocampus. The efficacy <strong>of</strong><br />
chol<strong>in</strong>ergic therapies <strong>in</strong> AD supports the chol<strong>in</strong>ergic hypothesis and validates this neurotransmitter<br />
system as a therapeutic target. Donepezil <strong>in</strong>augurated a new class <strong>of</strong> acetylchol<strong>in</strong>esterase (AChE)<br />
<strong>in</strong>hibitors with longer and more selective action with manageable adverse effects. It b<strong>in</strong>ds both the<br />
active-site gorge and the peripheral site through benzylpiperid<strong>in</strong>e and <strong>in</strong>danone moieties.<br />
In an attempt to obta<strong>in</strong> analogues <strong>of</strong> donepezil that could ma<strong>in</strong>ta<strong>in</strong> its ma<strong>in</strong> spatial and<br />
physicochemical characteristics while be<strong>in</strong>g more compact and less flexible, we applied a strategy to<br />
synthesize and rapidly evaluate a series <strong>of</strong> molecules to be eventually developed as AChE <strong>in</strong>hibitors<br />
for use <strong>in</strong> AD. We designed a small library <strong>of</strong> benzylpiperid<strong>in</strong>one derivatives, where the <strong>in</strong>danone<br />
group was replaced by a bioisosteric <strong>in</strong>dole or pyrrole r<strong>in</strong>g bear<strong>in</strong>g different substituents. The<br />
biochemical evaluation <strong>of</strong> the newly synthesized series was performed <strong>in</strong> collaboration with the<br />
<strong>research</strong> group coord<strong>in</strong>ated by Pr<strong>of</strong>. Aldo Roda by us<strong>in</strong>g a chemilum<strong>in</strong>escent (CL) method suitable for<br />
high-throughput screen<strong>in</strong>g (HTS) <strong>of</strong> AChE <strong>in</strong>hibitors [1]. The new derivatives showed a rather low<br />
degree <strong>of</strong> potency aga<strong>in</strong>st the enzyme compared to donepezil, but the molecular skeleton allows for<br />
structural modifications which could be done to explore the potential <strong>of</strong> the series toward new<br />
chol<strong>in</strong>ergic agents useful <strong>in</strong> the treatment <strong>of</strong> AD [2].<br />
To give a further <strong>in</strong>sight <strong>in</strong>to chol<strong>in</strong>esterase <strong>in</strong>hibitors, we also prepared new imidazo[2,1-b]thiazole
derivatives [3,4], which were also subjected to CL screen<strong>in</strong>g for the evaluation <strong>of</strong> AChE and<br />
butyrylchol<strong>in</strong>esterase (BuChE) <strong>in</strong>hibitory activity. These studies allowed the identification <strong>of</strong> some<br />
analogues display<strong>in</strong>g a peculiar AChE-selective <strong>in</strong>hibitory activity <strong>in</strong> the micromolar range [4].<br />
Both AChE and BuChE hydrolyze ACh, albeit with slightly different k<strong>in</strong>etics, and coexist ubiquitously <strong>in</strong><br />
humans. BuChE is widely distributed <strong>in</strong> the body <strong>of</strong> vertebrates and is implicated <strong>in</strong> neurogenesis and<br />
regulation <strong>of</strong> cell proliferation and differentiation. AChE and BuChE <strong>in</strong>hibitors could reverse the<br />
cognitive deficits associated with damag<strong>in</strong>g <strong>of</strong> chol<strong>in</strong>ergic neurons. These enzymes are encoded by<br />
different genes and clearly differ <strong>in</strong> substrate specificity and sensitivity to <strong>in</strong>hibitors, likely due ma<strong>in</strong>ly<br />
to structural differences <strong>in</strong> the active site gorge. In bra<strong>in</strong> affected by severe AD, the reduction <strong>of</strong><br />
AChE is accompanied by an up to 2-fold <strong>in</strong>crease <strong>in</strong> BuChE levels. Moreover both enzymes are<br />
<strong>in</strong>volved <strong>in</strong> aggregation <strong>of</strong> beta-amyloid and <strong>in</strong> formation/maturation <strong>of</strong> senile plaques, therefore the<br />
use <strong>of</strong> reversible chol<strong>in</strong>esterase <strong>in</strong>hibitors is considered an attractive therapeutic approach. Unlike<br />
AChE, the physiologic function <strong>of</strong> BuChE <strong>in</strong> normal and diseased humans is not completely clear yet,<br />
although a role <strong>in</strong> neurodegenerative disorders has been suggested. Ongo<strong>in</strong>g elucidation <strong>of</strong> the<br />
properties and behavior <strong>of</strong> BuChE <strong>in</strong> normal and AD bra<strong>in</strong>s supports a role for BuChE <strong>in</strong> AD pathology<br />
as well as normal cognition. In AD cl<strong>in</strong>ical studies the cognitive improvement was correlated with<br />
rivastigm<strong>in</strong>e (Exelon) treatment. This drug is a well known AChE/BuChE <strong>in</strong>hibitor and these studies<br />
support a role for central BuChE <strong>in</strong> addition to AChE <strong>in</strong>hibition <strong>in</strong> modulat<strong>in</strong>g chol<strong>in</strong>ergic function.<br />
Observation made <strong>in</strong> these studies <strong>in</strong>dicates that a good balance <strong>of</strong> <strong>in</strong>hibition <strong>of</strong> both AChE and<br />
BuChE may be beneficial <strong>in</strong> treat<strong>in</strong>g the cognitive decl<strong>in</strong>e <strong>in</strong> AD.<br />
The <strong>research</strong> we propose concerns the design and synthesis <strong>of</strong> small libraries <strong>of</strong> molecules, whose<br />
AChE/BuChE <strong>in</strong>hibitory activity will be assayed us<strong>in</strong>g the HTS CL method for AChE/BuChE <strong>in</strong>hibitors<br />
described above. The availability <strong>of</strong> a simple, rapid, and sensitive HTS CL method will facilitate the<br />
study <strong>of</strong> the biological activity <strong>of</strong> the designed compounds and the identification <strong>of</strong> the most<br />
promis<strong>in</strong>g molecules. In addition, the effect <strong>of</strong> AChE <strong>in</strong>hibitors could be evaluated “ex vivo” <strong>in</strong><br />
experiment animals by ultrasensitive CL microscope imag<strong>in</strong>g. In fact, the CL system can be also<br />
employed for the localization and quantification <strong>of</strong> AChE <strong>in</strong> bra<strong>in</strong> tissue sections [5].<br />
Overall, these studies could furnish new molecular tools useful <strong>in</strong> elucidat<strong>in</strong>g structural and<br />
functional differences between AChE and BuChE and may contribute to the development <strong>of</strong> new<br />
potential drugs for the treatment <strong>of</strong> AD.<br />
[1] Guardigli M., Pas<strong>in</strong>i P., Mirasoli A., Leoni A., Andreani A., Roda A.: Chemilum<strong>in</strong>escent highthroughput<br />
microassay for evaluation <strong>of</strong> acetylchol<strong>in</strong>esterase <strong>in</strong>hibitors. Anal. Chim. Acta, 535, 139-<br />
144, 2005.<br />
[2] Andreani A., Cavalli A., Granaiola M., Guardigli M., Leoni A., Locatelli A., Morigi R., Rambaldi M.,<br />
Recanat<strong>in</strong>i M., Roda A.: Synthesis and screen<strong>in</strong>g for antiacetylchol<strong>in</strong>esterase activity <strong>of</strong> (1-benzil-4oxopiperid<strong>in</strong>-3-ylidene)methyl<strong>in</strong>doles<br />
and –pyrroles related to donezepil. J. Med. Chem. 44, 4011-<br />
4014, 2001.<br />
[3] Andreani A., Granaiola M., Guardigli M., Leoni A., Locatelli A., Morigi R., Rambaldi M., Roda A.:<br />
Synthesis and chemilum<strong>in</strong>escent high throughput screen<strong>in</strong>g for <strong>in</strong>hibition <strong>of</strong> acetylchol<strong>in</strong>esterase<br />
activity by imidazo[2,1-b]thiazole derivatives. Eur. J. Med. Chem., 40, 1331-1334, 2005.
[4] Andreani A., Burnelli S., Granaiola M., Guardigli M., Leoni A., Locatelli A., Morigi R., Rambaldi M.,<br />
Rizzoli M., Varoli L., Roda A.: Chemilum<strong>in</strong>escent high-throughput microassay applied to imidazo[2,1b]thiazole<br />
derivatives as potential acetylchol<strong>in</strong>esterase and butyrylchol<strong>in</strong>esterase <strong>in</strong>hibitors. Eur. J.<br />
Med. Chem., 43, 657–661, 2008.<br />
[5] Pas<strong>in</strong>i P., Musiani M., Russo C., Valenti P., Aicardi G., Crabtree J.E., Barald<strong>in</strong>i M., Roda A.:<br />
Chemilum<strong>in</strong>escence imag<strong>in</strong>g <strong>in</strong> bioanalysis, J. Pharm. Biomed. Anal., 18, 555-564, 1998.<br />
Area di <strong>in</strong>teresse identificata<br />
Multidiscipl<strong>in</strong>ary projects
Nome Olga Bruno<br />
Contatti<br />
obruno@unige.it<br />
Tel: +39 010 353 8367<br />
Istituto/Dipartimento Dipartimento di Scienze Farmaceutiche – Università degli Studi di<br />
Genova<br />
Viale Benedetto XV,3 16132 Genova<br />
Proposta di ricerca<br />
In the past few years, it has been suggested that dysfunctions <strong>of</strong> the cAMP/PKA/CREB pathway could be a<br />
major cause <strong>of</strong> the cognitive deficits characteriz<strong>in</strong>g Alzheimer Disease (AD). Indeed, <strong>in</strong> vitro experiments<br />
have shown that Aβ42 is able to reduce the function <strong>of</strong> this pathway <strong>in</strong> hippocampal neurons, thus lead<strong>in</strong>g<br />
to impairment <strong>of</strong> long term potentiation (LTP) and both effects can be reversed by rolipram, a well known<br />
PDE4 <strong>in</strong>hibitor. More <strong>in</strong>terest<strong>in</strong>gly, rolipram has been shown to restore LTP and to ameliorate cognitive<br />
deficits <strong>in</strong> a double transgenic (APP/PS1) mur<strong>in</strong>e model <strong>of</strong> AD. Recently, sub-chronic rolipram treatment<br />
was reported to improve long-term memory performances also <strong>in</strong> normal rodents.<br />
Despite PDE4 <strong>in</strong>hibitors have been <strong>in</strong>dicated as promis<strong>in</strong>g therapeutical agents for AD, rolipram cannot be<br />
cl<strong>in</strong>ically used due to its adverse effects, particularly sedation and nausea. Among the different PDE4s,<br />
PDE4D is highly expressed <strong>in</strong> hippocampal regions and some is<strong>of</strong>orms seem to be augmented <strong>in</strong> the<br />
hippocampus <strong>of</strong> AD patients.<br />
Recently we have synthesized a series <strong>of</strong> <strong>in</strong>novative selective PDE4D2, PDE4D3 <strong>in</strong>hibitors, 1 which <strong>in</strong>crease<br />
cAMP levels <strong>in</strong> the hippocampus and improve cognitive functions <strong>in</strong> prelim<strong>in</strong>ary <strong>in</strong> vivo pre-cl<strong>in</strong>ical studies.<br />
Surpris<strong>in</strong>gly, <strong>in</strong> vitro experiments showed that our compounds, as well as rolipram, augment Aβ levels <strong>in</strong><br />
neuronal cultured cells, a result <strong>in</strong> agreement with a recent study show<strong>in</strong>g that dimebol<strong>in</strong>, a drug known to<br />
ameliorate cognitive deficits <strong>in</strong> aged rodents and <strong>in</strong> people suffer<strong>in</strong>g from mild AD, causes an acute<br />
<strong>in</strong>crease <strong>of</strong> Aβ bra<strong>in</strong> levels <strong>in</strong> experimental animals.<br />
Our project is aimed at study<strong>in</strong>g new PDE4D selective <strong>in</strong>hibitors as novel therapeutic agents <strong>in</strong> AD. These<br />
compounds could be also useful pharmacological tools to <strong>in</strong>crease the knowledge on the role <strong>of</strong> different<br />
PDE4 is<strong>of</strong>orms <strong>in</strong> CNS under physiologic as well as pathologic conditions, and to verify the relationship<br />
between PDE4D <strong>in</strong>hibition, A� levels and memory improvement.<br />
Our <strong>research</strong> unit skilful <strong>in</strong> medic<strong>in</strong>al chemistry will work to modify the chemical structure <strong>of</strong> previously<br />
synthesized compounds <strong>in</strong> order to <strong>in</strong>crease its selectivity, potency and <strong>in</strong> vivo activity. Our first goal is to<br />
obta<strong>in</strong> a beneficial effect on memory performances without emesis.<br />
The molecular modifications will be performed bas<strong>in</strong>g on a prelim<strong>in</strong>ary computational study aimed to<br />
show what structural features could discrim<strong>in</strong>ate between different PDE4D splic<strong>in</strong>g variants. Thus dock<strong>in</strong>g<br />
studies and 3D-QSAR analysis will be used to filter the large number <strong>of</strong> new molecular entities deriv<strong>in</strong>g<br />
from various chemical modifications on our previously synthesized compounds.<br />
1) Bruno O, Romussi A, Spallarossa A, Brullo C, Schenone S, Bondavalli F, Vanthuyne N, Roussel C. New<br />
selective phosphodiesterase 4D <strong>in</strong>hibitors differently act<strong>in</strong>g on long, short, and supershort is<strong>of</strong>orms. J Med<br />
Chem. 2009 52(21), 6546-57.<br />
Area di <strong>in</strong>teresse identificata<br />
Drug Design and synthesis <strong>of</strong> therapeutic agents for neurodegenerative<br />
disorders, particularly for Alzheimes Disease.<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto Heterocycle compounds as neuroprotective agents<br />
Ente f<strong>in</strong>anziatore<br />
(MIUR, <strong>Italian</strong> M<strong>in</strong>ister <strong>of</strong> University Research) 2005032713_005<br />
Ronsisvalle Giuseppe (Pr<strong>in</strong>cipal Investigator)
Bruno Olga Role: Co-<strong>in</strong>vestigator<br />
Durata progetto 1/01/06-31/12/07<br />
Abstract del progetto This study was aimed at synthesiz<strong>in</strong>g new molecules act<strong>in</strong>g by different<br />
pathways <strong>in</strong> neurodegenerative pathologies.<br />
Titolo progetto Heterocycle compounds as neuroprotective agents<br />
Ente f<strong>in</strong>anziatore<br />
(MIUR, <strong>Italian</strong> M<strong>in</strong>ister <strong>of</strong> University Research) 2007E8CRF3_003<br />
Ronsisvalle Giuseppe (Pr<strong>in</strong>cipal Investigator)<br />
Bruno Olga Role: Genoa Unit PI<br />
Durata progetto 22/09/08-22/09/10<br />
Abstract del progetto This grant is a renewal <strong>of</strong> previously f<strong>in</strong>ancial support for a large study<br />
aimed to synthesize new molecules act<strong>in</strong>g by different pathways <strong>in</strong><br />
neurodegenerative pathologies.
Nome Fabrizio Tagliav<strong>in</strong>i<br />
Contatti<br />
Tel +39 02 2394 2260; Fax +39 02 2394 2101<br />
Email: ftagliav<strong>in</strong>i@istituto-besta.it<br />
Sito web: http://www.istituto-besta.it<br />
Istituto/Dipartimento UO Neuropatologia – Neurologia 5<br />
Fondazione IRCCS Istituto Neurologico “Carlo Besta”<br />
Via Celoria ,11 - 20133 Milano- ITALY<br />
Proposta di ricerca<br />
The <strong>research</strong> group: The Division comprises (i) a Cl<strong>in</strong>ical Unit (Dementia Center) devoted to the<br />
diagnosis and treatment <strong>of</strong> patients with degenerative dementias (over 2000 out-patients and 150 <strong>in</strong>patients<br />
per year) and (ii) a Laboratory Unit (certified ISO 9001:2000 - Registration Number 26080,<br />
dedicated to the analysis <strong>of</strong> genes and biomarkers associated with degenerative dementias, postmortem<br />
characterization <strong>of</strong> the disease process and disease-specific prote<strong>in</strong>, and experimental<br />
studies on disease pathogenesis and the development <strong>of</strong> therapeutic strategies. The course <strong>of</strong> action<br />
<strong>of</strong> this activity can be expressed as a “Bed to Bench to Bed” cycle, with the ultimate goal to identify<br />
disease-modify<strong>in</strong>g drugs <strong>in</strong> precl<strong>in</strong>ical sett<strong>in</strong>gs and apply them to patients. In this regard, the Cl<strong>in</strong>ical<br />
Unit is currently coord<strong>in</strong>at<strong>in</strong>g a multicentre phase II cl<strong>in</strong>ical trial supported by AIFA, to test the<br />
effectiveness <strong>of</strong> an anti-amyloidogenic molecule identified <strong>in</strong> experimental models. This<br />
comprehensive approach has also the great advantage to collect biological samples (plasma, DNA, CSF<br />
and bra<strong>in</strong> tissue) from fully characterized patients. In this regard the Laboratory Unit is part <strong>of</strong> the<br />
Network <strong>of</strong> Excellence “Bra<strong>in</strong>Net” Europe devoted to biobank<strong>in</strong>g, harmonization <strong>of</strong> assessment tools<br />
and standardization <strong>of</strong> diagnostic criteria <strong>of</strong> neurodegenerative diseases.<br />
The permanent staff <strong>of</strong> the Division is composed by 8 MD and two technicians. In addition, the staff<br />
comprises 13 post-doctoral fellows (7 PhD, 3 MDV, 1 MD, 1 psychologist), 2 PhD students and 1<br />
technician who are committed to the <strong>research</strong> activities on degenerative dementias with different<br />
expertise and roles. On the overall, the team has large experience <strong>in</strong> a variety <strong>of</strong> techniques spann<strong>in</strong>g<br />
from neuropathology (<strong>in</strong>clud<strong>in</strong>g immunohistochemistry, morphometry, electron microscopy and<br />
atomic force microscopy), to molecular genetics, biochemistry (purification and characterization <strong>of</strong><br />
disease-specific prote<strong>in</strong>s), cellular and molecular biology, and animal models. The Division <strong>of</strong><br />
Neuropathology is provided with fully equipped laboratories for histology, immunohistochemistry,<br />
electron microscopy, atomic force microscopy, biochemistry, and molecular and cellular biology, and<br />
a 60 sqm BL3 facility. Moreover an animal facility composed by a 140 sqm environmental controlled<br />
area, provided with a HVAC system and heap-filtered ventilated racks, with separate rooms for<br />
ma<strong>in</strong>ta<strong>in</strong><strong>in</strong>g and breed<strong>in</strong>g mouse l<strong>in</strong>es, and carry<strong>in</strong>g out surgical procedures, collection <strong>of</strong> samples<br />
and post-mortem exam<strong>in</strong>ation is available.<br />
B. Precl<strong>in</strong>ical <strong>research</strong><br />
• Recessive A673V APP mutation: molecular mechanisms and development <strong>of</strong> a new therapeutic<br />
strategy for sporadic AD<br />
We have recently identified an APP mutation (A673V) that causes early-onset AD only <strong>in</strong> the<br />
homozygous state while the heterozygous carriers are not affected. This mutation strongly boosts the<br />
production and amyloidogenic properties <strong>of</strong> Aβ. However, the <strong>in</strong>teraction <strong>of</strong> A673V-mutated and<br />
wild-type peptides <strong>in</strong>hibits amyloidogenesis and Aβ-mediated neurotoxicity (Di Fede et al., Science<br />
2009, 323:1473-7). These f<strong>in</strong>d<strong>in</strong>gs are consistent with the observation that the A673V heterozygous<br />
carriers do not develop disease and <strong>of</strong>fer grounds for a novel therapeutic strategy based on modified<br />
Aβ peptides. A <strong>research</strong> priority <strong>of</strong> our lab is to unravel the molecular mechanisms <strong>of</strong> the opposite<br />
effects <strong>of</strong> the A673V APP mutation <strong>in</strong> homo- or heterozygous state on amyloidogenesis and to develop<br />
a lead compound for AD therapy based on A673V-modified Aβ peptides or peptido-mimetic<br />
molecules. To accomplish these objectives we have generated a panel <strong>of</strong> transfected cells and<br />
transgenic C. elegans express<strong>in</strong>g human APP or Aβ with the A673V mutation, respectively, and
transgenic mouse l<strong>in</strong>es express<strong>in</strong>g A673V-mutated APP <strong>in</strong> the homozygous or heterozygous state.<br />
Furthermore, we have identified a prototypic lead compound correspond<strong>in</strong>g to a six-mer Aβ peptide<br />
with the A673V substitution and are currently work<strong>in</strong>g on bra<strong>in</strong> delivery systems.<br />
Area di <strong>in</strong>teresse<br />
identificata<br />
CLINICA/PRECLINICA<br />
- Genetic susceptibility to Alzheimer’s disease (AD)<br />
- Early diagnosis<br />
- Biomarkers<br />
- Develop<strong>in</strong>g competitive animal models to study AD<br />
- Study<strong>in</strong>g early onset forms <strong>of</strong> AD to follow-up disease progression<br />
- C<strong>in</strong>ical trials with or without <strong>in</strong>volvement <strong>of</strong> pharmaceutical companies<br />
- Basic <strong>research</strong><br />
- Biobank<strong>in</strong>g (blood sample, CSF, bra<strong>in</strong> repository…)<br />
- Standardization <strong>of</strong> diagnostic criteria<br />
- New treatment strategies<br />
- Translational <strong>research</strong>
Nome Simone OTTONELLO<br />
Contatti<br />
+39 0521 905646 (<strong>of</strong>fice)<br />
+39 0521 905148 (lab)<br />
s.ottonello@unipr.it<br />
Istituto/Dipartimento Department <strong>of</strong> Biochemistry and Molecular Biology<br />
Viale G.P. Usberti 23/A<br />
University <strong>of</strong> Parma<br />
43100 Parma (Italy)<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse identificata -“Biomarkers” / “Early diagnosis”<br />
Implementation <strong>of</strong> high-resolution techniques for A��oligomer detection<br />
and quantification <strong>in</strong> bra<strong>in</strong> samples from Tg-mouse models <strong>of</strong> Alzheimer<br />
disease and <strong>in</strong> body fluids, <strong>in</strong>clud<strong>in</strong>g human CSF.<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto 2 years<br />
-“Basic <strong>research</strong>”<br />
Yeast mutant stra<strong>in</strong>s (selected from a genome-wide mutant collection)<br />
conditionally express<strong>in</strong>g Alzheimer-related pathogenic polypeptides as<br />
tools to unravel new fundamental aspects <strong>of</strong> AD pathogenesis (e.g.,<br />
mitochondrial function impairment) and potential treatments there<strong>of</strong>.<br />
-“New treatment strategies”<br />
Second generation, recomb<strong>in</strong>ant A� peptide immunogens as prototype<br />
vacc<strong>in</strong>es for AD treatment/prevention (active immunization approach)<br />
and as primary antigens for the production <strong>of</strong> conformation-sensitive<br />
therapeutic monoclonal antibodies (passive immunization approach).<br />
“Novel anti-A� immunization approaches for the treatment <strong>of</strong> Alzheimer<br />
disease”<br />
Pharmaceutical Company<br />
Titolo progetto “Further studies on the Trx-A� antigen and its potential as an anti-AD<br />
vacc<strong>in</strong>e”<br />
Ente f<strong>in</strong>anziatore<br />
Pharmaceutical Company<br />
Durata progetto ��year<br />
Titolo progetto “Target selectivity <strong>of</strong> NSAID �-secretase modulators evaluated by oligomacroarray<br />
analysis”<br />
Ente f<strong>in</strong>anziatore<br />
Pharmaceutical Company<br />
Durata progetto ��year<br />
Titolo progetto "Large-scale production <strong>of</strong> recomb<strong>in</strong>ant TrxA� for a precl<strong>in</strong>ical study <strong>in</strong>
Tg-AD mice”<br />
Ente f<strong>in</strong>anziatore Pharmaceutical Company<br />
Durata progetto ��months<br />
Titolo progetto "Immunoelectrophoretic analysis <strong>of</strong> A� oligomers <strong>in</strong> bra<strong>in</strong> samples from<br />
Tg-AD mice treated with a NSAID �-secretase modulator”<br />
Ente f<strong>in</strong>anziatore Pharmaceutical Company<br />
Durata progetto 6 months (ongo<strong>in</strong>g)
Nome MAURIZIO SCARPA<br />
Contatti Maurizio.scarpa@unipd.it<br />
Istituto/Dipartimento DEPARTMENT OF PEDIATRICS UNIVERSITY OF PADOVA ITALY<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse<br />
identificata<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
PEDIATRIC NEURODEGENERATIVE DISEASES<br />
BRAINS4BRAIN – Treat<strong>in</strong>g Pediatric <strong>Neurodegenerative</strong> Diseases:<br />
From Laboratory Bench to Bedside<br />
EUROPEAN SCIENCE FOUNDATION<br />
Exploratory Workshop March 3-5 2010 Frankfurt<br />
<strong>Neurodegenerative</strong> diseases are most prevalent <strong>in</strong> the elderly, but can <strong>in</strong> rare cases also<br />
affect <strong>in</strong>dividuals early <strong>in</strong> life. In children, neurodegeneration leads to severe mental<br />
retardation and premature death with devastat<strong>in</strong>g consequences on their immediate<br />
environment and relatively high costs for society. With<strong>in</strong> the EU pediatric<br />
neurodegenerative disorders are considered “Rare”. Because <strong>of</strong> the low-prevalence <strong>of</strong><br />
these disorders, there is <strong>of</strong>ten a strik<strong>in</strong>g lack <strong>of</strong> <strong>in</strong>formation, <strong>research</strong>, treatment and<br />
expert availability. There is also <strong>of</strong>ten a significant delay before a def<strong>in</strong>itive diagnosis is<br />
achieved. BRAINS4BRAIN calls for a collaborative <strong>research</strong> effort to focus the available<br />
multidiscipl<strong>in</strong>ary European bra<strong>in</strong>power with relevance to tackl<strong>in</strong>g pediatric<br />
neurodegenerative diseases. BRAINS4BRAIN (www.bra<strong>in</strong>s4bra<strong>in</strong>.eu) is a European task<br />
force aimed at develop<strong>in</strong>g and implement<strong>in</strong>g new therapies for pediatric<br />
neurodegenerative diseases for which, at the moment, no effective therapy is available.<br />
The task force wishes to create a coord<strong>in</strong>ated European effort towards i) the<br />
comprehension <strong>of</strong> pathophysiology processes <strong>of</strong> these pediatric neurological disorders, ii)<br />
the implementation <strong>of</strong> knowledge on the BBB, iii) the development <strong>of</strong> new molecular<br />
and/or biochemical strategies to overcome the BBB for bra<strong>in</strong>-targeted drug delivery, and<br />
iv) the development and implementation <strong>of</strong> diagnostics and cl<strong>in</strong>ical therapies to timely<br />
detect and treat these devastat<strong>in</strong>g CNS disorders. Importantly, it is foreseen that such<br />
knowledge and <strong>in</strong>sights will also be valuable for understand<strong>in</strong>g and treat<strong>in</strong>g other<br />
important neurological diseases such as Alzheimer’s, Park<strong>in</strong>son’s Disease, and epilepsy.<br />
LSDs are metabolic disorders, caused by the lack <strong>of</strong> certa<strong>in</strong> (lysosomal) enzymes or<br />
lysosome components, thus prevent<strong>in</strong>g the complete degradation <strong>of</strong> macromolecules and<br />
the recycl<strong>in</strong>g <strong>of</strong> their components.<br />
The accumulation <strong>of</strong> <strong>in</strong>termediate degradation products affects the appropriate<br />
function<strong>in</strong>g <strong>of</strong> lysosomes and other cellular organelles.<br />
Accumulation starts immediately after birth and progressively worsens, <strong>of</strong>ten affect<strong>in</strong>g<br />
several organs, <strong>in</strong>clud<strong>in</strong>g the Central Nervous System (CNS). CNS pathology causes mental<br />
retardation and progressive neurodegeneration that ultimately ends <strong>in</strong> early death <strong>of</strong><br />
these young patients. LSDs are the only group <strong>of</strong> pediatric neurodegenerative diseases<br />
for which therapy that can reverse the natural history <strong>of</strong> the disease <strong>in</strong> peripheral organs<br />
is available (Enzyme Replacement Therapy, ERT).<br />
Unfortunately, ERT is currently unable to effectively reach the CNS to stop the lethal<br />
progression <strong>of</strong> the neurodegeneration. Nonetheless, ERT <strong>in</strong> comb<strong>in</strong>ation with i) the<br />
advanced knowledge <strong>of</strong> the (genetic- and biochemical) causes for the development <strong>of</strong><br />
neurodegeneration <strong>in</strong> LSDs and ii) the availability with<strong>in</strong> Europe <strong>of</strong> well established <strong>in</strong><br />
vitro and animal models, now provides the unique opportunity to decipher the cascade <strong>of</strong><br />
events lead<strong>in</strong>g to loss <strong>of</strong> bra<strong>in</strong> plasticity and mental retardation, as well as its possible<br />
reversal. For <strong>in</strong>stance, suppress<strong>in</strong>g the primary cause <strong>of</strong> neurodegeneration (e.g. by ERT)<br />
<strong>in</strong> a young bra<strong>in</strong> –that at this stage <strong>of</strong> development reta<strong>in</strong>s considerable plasticity–
maximizes the potential for neurological repair. Important to note is that common<br />
secondary events <strong>in</strong> both pediatric and adult neurodegenerative diseases lead to<br />
neurodegeneration. Studies on LSDs therefore have the ability to provide unique <strong>in</strong>sights<br />
<strong>in</strong>to the pathophysiology and restorative capacities <strong>of</strong> neurodegenerative diseases <strong>in</strong><br />
general. Therapies based on ERT can modify the natural history <strong>of</strong> some LSDs <strong>in</strong> the<br />
peripheral organs (liver, spleen, jo<strong>in</strong>t mobility etc.). However, the BBB prevents the<br />
therapeutic enzymes used from reach<strong>in</strong>g the CNS and modify<strong>in</strong>g the course <strong>of</strong><br />
neurodegeneration 1. This limitation can be circumvented by non-pharmaceutical therapy<br />
<strong>in</strong> which sources <strong>of</strong> enzyme (e.g. a viral vector) are created by surgical <strong>in</strong>jection directly<br />
<strong>in</strong>to the CNS. It might eventually also be achieved to some extend by pharmaceutical<br />
therapies based on BBB travers<strong>in</strong>g small molecules aimed at reduc<strong>in</strong>g the accumulation <strong>of</strong><br />
molecules requir<strong>in</strong>g degradation (e.g. Substrate Reduction Therapy (SRT):<strong>in</strong>hibit<strong>in</strong>g early<br />
enzymes <strong>in</strong> the biosynthetic pathway, or Chemical Chaperones: assist<strong>in</strong>g the affected<br />
enzyme to atta<strong>in</strong> its correct, active conformation2).3,4 However, ERT is likely to be the<br />
most efficient strategy with the least side effects. As neurodegeneration <strong>in</strong> LSDs affects<br />
the entire bra<strong>in</strong>, the technological challenge is to safely deliver ERT efficiently to all<br />
affected areas. This might be achieved only by develop<strong>in</strong>g strategies enabl<strong>in</strong>g the<br />
therapeutic enzyme to cross the BBB. Tools to enable the entry <strong>of</strong> curative molecules<br />
across the BBB <strong>in</strong>to the CNS will represent a major breakthrough for the long-term<br />
therapy <strong>of</strong> many (if not all) CNS diseases. Several cutt<strong>in</strong>g edge <strong>in</strong>itiatives us<strong>in</strong>g different<br />
approaches to specifically deliver molecules across the BBB (e.g. exploit<strong>in</strong>g certa<strong>in</strong><br />
transporters or manipulat<strong>in</strong>g BBB permeability) exist with<strong>in</strong> Europe.
Nome Paola Tirassa<br />
Contatti<br />
p.tirassa@<strong>in</strong>mm.cnr.it; INMM- CNR Istituto di Neurobiologia e Medic<strong>in</strong>a<br />
Molecolare Via del Fosso di Fiorano, 64 00143 ROMA ITALY Phone: + 39<br />
06 501 703 236 Fax: + 39 06 501 703 313<br />
Istituto/Dipartimento Institute <strong>of</strong> Neurobiology and Molecular Medic<strong>in</strong>e CNR<br />
Proposta di ricerca<br />
2) Basic <strong>research</strong> : New treatment strategies based on Neurotroph<strong>in</strong>s<br />
f) Ocular NGF adm<strong>in</strong>istration as a novel non <strong>in</strong>vasive approach to protect bra<strong>in</strong>-NGF target neurons that<br />
degenerate <strong>in</strong> Alzheimer’s disease (L. Aloe, P. Tirassa). Nerve growth factor and (NGF) is a soluble prote<strong>in</strong><br />
that plays a protective role on bra<strong>in</strong> neurons that degenerate <strong>in</strong> age-related bra<strong>in</strong> disorders, <strong>in</strong>clud<strong>in</strong>g<br />
Alzheimer’s disease (AD). We have shown that conjunctively applied NGF can protect <strong>in</strong>jured bra<strong>in</strong><br />
neurons and damaged ret<strong>in</strong>al ganglion neurons suggest<strong>in</strong>g that topical eye NGF application might be a<br />
novel alternative for deliver<strong>in</strong>g NGF <strong>in</strong>to the bra<strong>in</strong> and for protect<strong>in</strong>g bra<strong>in</strong> neurons and reduc<strong>in</strong>g memory<br />
deficits occurr<strong>in</strong>g dur<strong>in</strong>g early events <strong>of</strong> AD and glaucoma. This hypothesis is currently actively under<br />
<strong>in</strong>vestigation <strong>in</strong> collaboration with other <strong>research</strong> groups.<br />
Lambiase A, Pagani L, Di Fausto V, Sposato V, Coass<strong>in</strong> M, Bon<strong>in</strong>i S, Aloe L. Nerve growth factor eye drop<br />
adm<strong>in</strong>istrated on the ocular surface <strong>of</strong> rodents affects the nucleus basalis and septum: biochemical and<br />
structural evidence. Bra<strong>in</strong> Res. 2007;1127:45-51.<br />
Di Fausto V, Fiore M, Tirassa P, Lambiase A, Aloe L. Eye drop NGF adm<strong>in</strong>istration promotes the recovery <strong>of</strong><br />
chemically <strong>in</strong>jured chol<strong>in</strong>ergic neurons <strong>of</strong> adult mouse forebra<strong>in</strong>. Eye drop NGF adm<strong>in</strong>istration promotes<br />
the recovery <strong>of</strong> chemically <strong>in</strong>jured chol<strong>in</strong>ergic neurons <strong>of</strong> adult mouse forebra<strong>in</strong>. Eur J Neurosci.<br />
2007;26:2473-80. Lambiase A, Aloe L, Cent<strong>of</strong>anti M, Parisi V, Mantelli F, Colafrancesco V,<br />
Manni GL, Bucci MG, Bon<strong>in</strong>i S, Levi-Montalc<strong>in</strong>i R. Experimental and cl<strong>in</strong>ical evidence <strong>of</strong> neuroprotection by<br />
nerve growth factor eye drops: Implications for glaucoma. Proc Natl Acad Sci U S A, 2009; 109: 13469-<br />
13474,.<br />
g) Electro-acupuncture and polyphenols as novel approaches to reduce neurodegeneration ( L Manni, M<br />
Fiore). Prelim<strong>in</strong>ary data <strong>in</strong>dicate that diabetes <strong>in</strong>duced <strong>in</strong> adult rats by <strong>in</strong>jection with streptozotoc<strong>in</strong> causes<br />
a decrease <strong>of</strong> bra<strong>in</strong> NGF and a concomitant <strong>in</strong>crease <strong>of</strong> tau phosphorylation, that were all counteracted by<br />
low-frequency electro-acupuncture (EA). Us<strong>in</strong>g molecular and behavioural approaches the <strong>research</strong><br />
project will be aimed at: i) Investigate the possible l<strong>in</strong>k between diabetes, bra<strong>in</strong> NGF presence/activity and<br />
the development <strong>of</strong> AD-associated pathological features; ii) Study the effect <strong>of</strong> EA on the above mentioned<br />
diabetes-associated bra<strong>in</strong> dysfunction. Alcoholism is related to neurodegeneration and diabetes. The use<br />
<strong>of</strong> polyphenols extracted by olive oil, olive leaves and olive seeds or by grapes (Fiore et al 2009) to prevent<br />
or limit mouse bra<strong>in</strong> neurodegeneration due to ag<strong>in</strong>g or ethanol consumption will be evaluated.<br />
Manni L, Aloe L, Fiore M. Changes <strong>in</strong> cognition <strong>in</strong>duced by social isolation <strong>in</strong> the mouse are restored by<br />
electro-acupuncture. Physiol Behav. 2009;98(5):537-42<br />
Fiore M, Laviola G, Aloe L, di Fausto V, Manc<strong>in</strong>elli R, Ceccanti M. Early exposure to ethanol but not red w<strong>in</strong>e<br />
at the same alcohol concentration <strong>in</strong>duces behavioral and bra<strong>in</strong> neurotroph<strong>in</strong> alterations <strong>in</strong> young and<br />
adult mice. Neurotoxicology. 2009;30(1):59-71.<br />
h) Human neural stem cells lentivirally transduced with human BDNF (C. Cenciarelli, P. Casalbore). A<br />
strong body <strong>of</strong> evidences show that BDNF result critically <strong>in</strong>volved <strong>in</strong> Alzheimer’s and Hunt<strong>in</strong>gton’s<br />
diseases. Recently, it has been shown that BDNF knockdown with<strong>in</strong> NSC abolishes the cognitive benefits <strong>of</strong>
NSC delivery. The aim is to use propagat<strong>in</strong>g human neural stem cells (hNSC) lentivirally transduced with<br />
human BDNF as cellular therapy for replac<strong>in</strong>g degenerat<strong>in</strong>g neurons <strong>in</strong> disease, trauma and toxic <strong>in</strong>sults.<br />
Cenciarelli C, Budoni M, Mercanti D, Fernandez E, Pall<strong>in</strong>i R, Aloe L, Cim<strong>in</strong>o V, Maira G, Casalbore P. In vitro<br />
analysis <strong>of</strong> mouse neural stem cells genetically modified to stably express human NGF by a novel multigenic<br />
viral expression system. Neurol Res. 2006, 28:505-12.<br />
Casalbore P, Barone I, Felsani A, D’Agnano I, Michetti F, Maira G and Cenciarelli C. Neural stem cells<br />
modified to express BDNF antagonize trimethylt<strong>in</strong>-<strong>in</strong>duced neurotoxicity through PI3K/Akt and MAP k<strong>in</strong>ase<br />
pathways . Accepted on J. Cell. Physiol. 2010.
Nome Micaela Morelli<br />
Contatti<br />
Istituto/Dipartimento Department <strong>of</strong> Toxicology, University <strong>of</strong> Cagliari<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse identificata<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
New symptomatic and neuroprotective therapies for Park<strong>in</strong>son’s<br />
disease<br />
1) Development and dissem<strong>in</strong>ation <strong>of</strong> <strong>in</strong>novative methodologies<br />
for plann<strong>in</strong>g, synthesis and determ<strong>in</strong>ation <strong>of</strong> biological activity<br />
<strong>of</strong> new ligands for membrane receptors (FIRB:RBNE03YA3L_004)<br />
2) Evaluation <strong>of</strong> behavioural and biochemical changes <strong>in</strong><br />
'Engrailed' mutant mice (PRIN 2006)<br />
3) : Evaluation <strong>of</strong> neuroprotective effects <strong>of</strong> ST1535 <strong>in</strong> animal<br />
model <strong>of</strong> Park<strong>in</strong>son ‘s disease (SIGMA-TAU <strong>in</strong>dustry)<br />
1-2) MURST<br />
3 ) SIGMA-TAU Industry<br />
1) 3 years<br />
2) 2 years<br />
3) 1 year<br />
1) To determ<strong>in</strong>e the <strong>in</strong> vivo and ex vivo biological activity <strong>of</strong><br />
adenos<strong>in</strong>e A2A antagonists compounds <strong>of</strong> new synthesis. Three<br />
compounds symptomatically active on models <strong>of</strong> Park<strong>in</strong>son’s<br />
disease have been selected on the basis <strong>of</strong> the results obta<strong>in</strong>ed.<br />
Moreover their potential neuroprotective effects has been<br />
recently <strong>in</strong>vestigated <strong>in</strong> models <strong>of</strong> Park<strong>in</strong>son’s disease.<br />
2) The engrailed stra<strong>in</strong> <strong>of</strong> mice has shown behavioural deficits and<br />
biochemical changes superimposible <strong>of</strong> Park<strong>in</strong>son’s disease<br />
models. This stra<strong>in</strong> <strong>of</strong> mice is now used as a model <strong>of</strong> this disease.<br />
3) Evaluation <strong>of</strong> neuroprotective and anti-<strong>in</strong>flammatory effects <strong>of</strong><br />
new adenos<strong>in</strong>e A2A receptor antagonist ST1535 <strong>in</strong> animal model<br />
<strong>of</strong> Park<strong>in</strong>son ‘s disease. ST1535 has shown positive symptomatic<br />
improvement <strong>in</strong> motor functions and also neuroprotective and<br />
anti-<strong>in</strong>flammatory effects <strong>in</strong> the MPTP mouse model <strong>of</strong><br />
Park<strong>in</strong>son’s disease.
Nome Maria P. Abbracchio<br />
Contatti<br />
Tel.<br />
E mail<br />
Istituto/Dipartimento<br />
Proposta di ricerca<br />
Dept Pharmacol Sci, Univ Milan, Italy<br />
+39-02-50318310/355<br />
mariapia.abbracchio@unimi.it<br />
Area di <strong>in</strong>teresse identificata Innovative neuro-reparative strategies via the implementation <strong>of</strong><br />
endogenous neurogenesis and gliogenesis: focus on the new P2Y-like<br />
GPR17 receptor<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract delle ricerche <strong>in</strong><br />
corso<br />
PURINOCEPTORS AND NEUROPROTECTION: FOCUS ON THE NEW<br />
PURINERGIC RECEPTOR GPR17<br />
COFIN-MIUR 2008;<br />
2 anni<br />
IMPLEMENTATION AND GLIOGENESIS VIA THE PURINERGIC SYSTEM: A<br />
NEW STRATEGY TO REPAIR ACUTE NEURODEGENERATIVE DISEASE<br />
M<strong>in</strong>istero della Salute 2007<br />
2 anni<br />
Decipher<strong>in</strong>g the molecular mechanisms controll<strong>in</strong>g the behaviour <strong>of</strong><br />
endogenous neural stem cells is <strong>of</strong> paramount importance to understand<br />
the processes at the basis <strong>of</strong> bra<strong>in</strong> recovery and to foster the bra<strong>in</strong>’s<br />
ability to repair itself <strong>in</strong> acute and chronic neurodegenerative diseases.<br />
We have recently identified a new P2Y-like G-prote<strong>in</strong>-coupled<br />
pur<strong>in</strong>oceptor GPR17, activated by both uracil nucleotides and cyste<strong>in</strong>ylleukotrienes<br />
(cysLTs) (Ciana P et al., The orphan receptor GPR17 identified<br />
as a new dual uracil nucleotides/cyste<strong>in</strong>yl-leukotrienes receptor. EMBO J<br />
25:4615-27, 2006). We have established a national consortium (the<br />
GPR17 <strong>research</strong> team) that specifically studies the role <strong>of</strong> this receptor <strong>in</strong><br />
cerebral diseases. Initial data <strong>in</strong> rodent models <strong>of</strong> focal bra<strong>in</strong> ischemia<br />
have shown that GPR17 participates to both the propagation <strong>of</strong> bra<strong>in</strong><br />
damage and to the subsequent post-<strong>in</strong>jury remodell<strong>in</strong>g and repair (Lecca<br />
D et al., The recently identified P2Y-like receptor GPR17 is a sensor <strong>of</strong><br />
bra<strong>in</strong> damage and a new target for bra<strong>in</strong> repair. PLoS ONE 3:e3579, 1-15,<br />
2008). Specifically, GPR17 was found to activate the quiescent<br />
oligodendrocyte precursor cells that are still present <strong>in</strong> the adult bra<strong>in</strong>,<br />
<strong>in</strong>duc<strong>in</strong>g them to resume myel<strong>in</strong>ation, thus re-establ<strong>in</strong>g neuron-toneuron<br />
communication. GPR17 was also found to be expressed by the<br />
ependymal cells l<strong>in</strong><strong>in</strong>g sp<strong>in</strong>al cord’s central canal (Ceruti S et al., The P2Ylike<br />
receptor GPR17 as a sensor <strong>of</strong> damage and a new potential target <strong>in</strong><br />
sp<strong>in</strong>al cord <strong>in</strong>jury. Bra<strong>in</strong> 132:2206-18, 2009) that are believed to<br />
represent the true adult stem cells <strong>in</strong> this part <strong>of</strong> the central nervous
system. Upon sp<strong>in</strong>al cord mechanical <strong>in</strong>jury, these cells started<br />
proliferat<strong>in</strong>g and re-express<strong>in</strong>g markers <strong>of</strong> multipotent stem-like cells<br />
(ibidem). Interest<strong>in</strong>gly, <strong>in</strong> the adult bra<strong>in</strong>, GPR17 specifically decorates a<br />
precursor cell (NG2-positive neural precursors) that normally<br />
differentiates to oligodendrocytes, but that, under appropriate<br />
conditions, can be addressed to generate functional new neurons and<br />
new astrocytes. These data make GPR17 an <strong>in</strong>terest<strong>in</strong>g new target not<br />
only for stroke but also for chronic human neurodegenerative diseases<br />
characterized by demyel<strong>in</strong>ation or neuronal pathology, such as multiple<br />
sclerosis (MS) and Alzheimer’s disease (AD). Prelim<strong>in</strong>ary data <strong>in</strong> animal<br />
models <strong>in</strong>deed support this hypothesis: activated GPR17-express<strong>in</strong>g adult<br />
precursor cells were found to accumulate, respectively, around<br />
demyel<strong>in</strong>ated wounds <strong>in</strong> an Experimental Autoimmune Encephalomyelitis<br />
(EAE) MS animal model, and around bra<strong>in</strong> plaques <strong>in</strong> a transgenic mur<strong>in</strong>e<br />
model <strong>of</strong> AD (APPPS1 mice).<br />
Our current efforts aim at:<br />
1. We want to develop an <strong>in</strong> silico tridimensional pharmacophore model<br />
<strong>of</strong> GPR17 to screen large virtual chemical libraries and to design new<br />
specific ligands. The newly synthesized agonists/antagonists (<strong>in</strong>clud<strong>in</strong>g<br />
new “dual” ligands act<strong>in</strong>g at both the nucleotide and the cysLT b<strong>in</strong>d<strong>in</strong>g<br />
sites) will be tested <strong>in</strong> our established <strong>in</strong> vitro assays and then addressed<br />
to their <strong>in</strong> vivo validation<br />
2. “Old” and new GPR17 ligands will be used to unveil the exact role <strong>of</strong><br />
the receptor dur<strong>in</strong>g oligodendrocyte differentiation and myel<strong>in</strong>ation, <strong>in</strong><br />
both <strong>in</strong> vitro and <strong>in</strong> vivo models, and to identify the factors regulat<strong>in</strong>g its<br />
transcription <strong>in</strong> precursor cells.<br />
3. To set the basis for a possible wider exploitment <strong>of</strong> GPR17 <strong>in</strong> adult<br />
neurogenesis/gliogenesis, by us<strong>in</strong>g both isolated precursor cells and<br />
neurospheres from control and diseased bra<strong>in</strong>s, we shall also develop<br />
pharmacological protocols to address GPR17-positive precursor cells to<br />
neurons or astrocytes.<br />
4. The role <strong>of</strong> GPR17 <strong>in</strong> the EAE MS model will be studied <strong>in</strong> detail. Initial<br />
<strong>in</strong>formation on the changes <strong>of</strong> GPR17 expression <strong>in</strong> these models will be<br />
obta<strong>in</strong>ed via an <strong>in</strong> silico analysis <strong>of</strong> microarray data; then, the regional<br />
localization, cell types, and k<strong>in</strong>etics <strong>of</strong> GPR17 expression dur<strong>in</strong>g disease<br />
evolution will be assessed. F<strong>in</strong>ally, we shall determ<strong>in</strong>e the effects <strong>of</strong> a<br />
“preventive” or “therapeutic” <strong>in</strong> vivo adm<strong>in</strong>istration <strong>of</strong> GPR17 ligands on<br />
animals’ weight, neurological score and disease course.<br />
Globally, results will contribute to f<strong>in</strong>d<strong>in</strong>g new GPR17-based regenerative<br />
medic<strong>in</strong>e approaches for human neurodegenerative diseases, allow<strong>in</strong>g for<br />
substantial improvement <strong>of</strong> “endogenous neural stem cell”-based <strong>in</strong> vivo<br />
therapy.
Nome Mariagrazia Grilli/Pier Luigi Canonico<br />
Contatti<br />
Tel.<br />
E mail<br />
Mariagrazia Grilli<br />
0321375828 3280587577<br />
grilli@pharm.unipmn.it<br />
Istituto/Dipartimento DiSCAFF, University <strong>of</strong> Piemonte Orientale, Novara Italy<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse<br />
identificata<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
Novel drugs (D).<br />
“Pharmacological modulation <strong>of</strong> adult neurogenesis”<br />
Pharmacological modulation <strong>of</strong> endogenous neural stem cells for<br />
amelioration <strong>of</strong> cognitive impairment <strong>in</strong> neuropsychiatric<br />
disorders<br />
Cariplo, Regione Piemonte, PRIN, Fondazione Comunità del Novarese<br />
3 anni<br />
As <strong>of</strong> today, the pharmacological treatment <strong>of</strong> cognitive deficits associated with<br />
several neuropsychiatric disorders is still very limited. The essential requirement<br />
for an ideal anti-dementia drug would be the ability to re-organize the neuronal<br />
network <strong>in</strong> the <strong>in</strong>jured bra<strong>in</strong> so as to prevent/slow down the neurodegenerative<br />
process and possibly to partially recover bra<strong>in</strong> function. Structural and functional<br />
plasticity, <strong>of</strong>ten referred to as “neuroplasticity”, a fundamental property <strong>of</strong> the<br />
bra<strong>in</strong>, comprises chemical, electrical, molecular and cellular responses by which<br />
connections with<strong>in</strong> a bra<strong>in</strong> region and/or between bra<strong>in</strong> regions are reorganized. It<br />
is maximal dur<strong>in</strong>g bra<strong>in</strong> development but it persists to a relevant extent <strong>in</strong><br />
adulthood, conferr<strong>in</strong>g to neuronal networks a higher degree <strong>of</strong> circuit adaptation<br />
to the novel experiences we are exposed to for our entire life. Neuroplasticity <strong>in</strong><br />
adulthood is <strong>in</strong> fact the neurobiological substrate <strong>of</strong> learn<strong>in</strong>g and memory. A<br />
better understand<strong>in</strong>g <strong>of</strong> molecular events underly<strong>in</strong>g neuroplasticity may lead to<br />
<strong>in</strong>novative therapeutic approaches <strong>in</strong> a variety <strong>of</strong> neuropsychiatric disorders<br />
characterized by learn<strong>in</strong>g and memory deficits.<br />
Different forms <strong>of</strong> neuroplasticity are known to exist <strong>in</strong> the adult bra<strong>in</strong>,<br />
<strong>in</strong>clud<strong>in</strong>g neurogenesis. A large body <strong>of</strong> experimental work has recently<br />
established that newborn neurons cont<strong>in</strong>ue to be added to discrete regions <strong>of</strong> the<br />
adult nervous system <strong>in</strong>clud<strong>in</strong>g the hippocampus, an area implicated <strong>in</strong> learn<strong>in</strong>g<br />
and memory which form the basis for complex behaviour patterns <strong>in</strong> vertebrates.<br />
Several studies support the hypothesis that experience- or activity-dependent<br />
<strong>in</strong>tegration <strong>of</strong> new neurons <strong>in</strong>to hippocampal pre-exist<strong>in</strong>g neural networks<br />
represents a functional mechanism <strong>of</strong> bra<strong>in</strong> plasticity subserv<strong>in</strong>g specific types <strong>of</strong><br />
learn<strong>in</strong>g and memory functions. Several human disorders affect<strong>in</strong>g memory and<br />
cognition, <strong>in</strong>clud<strong>in</strong>g neurodegenerative and psychiatric disorders, are<br />
characterized by abnormalities <strong>in</strong> synaptic structure/number as well as <strong>in</strong><br />
neurogenesis, <strong>in</strong>clud<strong>in</strong>g Alzheimer’s disease (AD). The present project aims to<br />
<strong>in</strong>vestigate whether the pharmacological manipulation <strong>of</strong> neuroplasticity <strong>in</strong><br />
pathological conditions may be effective <strong>in</strong> modulat<strong>in</strong>g different memory stages<br />
and systems. This would be a start<strong>in</strong>g po<strong>in</strong>t for develop<strong>in</strong>g and test<strong>in</strong>g novel
pharmacotherapies for cognitive disorders. In particular, the contribution <strong>of</strong> NFkappaB<br />
prote<strong>in</strong>s to this process and <strong>in</strong> cognitive disorders is under <strong>in</strong>vestigation.<br />
Indeed a vast body <strong>of</strong> <strong>in</strong>formation po<strong>in</strong>ts at the role <strong>of</strong> the NF-kappaB family <strong>in</strong><br />
synaptic plasticity, learn<strong>in</strong>g and memory and at neuropychiatric disorders aris<strong>in</strong>g<br />
when it is deranged (Grilli & Menegh<strong>in</strong>i, <strong>in</strong> press, 2010). Recently, we showed<br />
that NF-kappaB p50KO mice displayed a very selective defect <strong>in</strong> hippocampal -<br />
dependent short-term memory which correlated with the disruption <strong>of</strong><br />
hippocampal adult neurogenesis (Denis-Don<strong>in</strong>i et al., 2008). More specifically, <strong>in</strong><br />
the absence <strong>of</strong> p50 prote<strong>in</strong>, defective neurogenesis result<strong>in</strong>g <strong>in</strong> memory defects<br />
appeared to possibly occur at the transition between dist<strong>in</strong>ct maturation steps <strong>in</strong><br />
newly generated neurons. Intrigu<strong>in</strong>gly, this is the stage characterized by high<br />
synaptic plasticity when <strong>in</strong> the adult newborn neurons with extended axons and<br />
dendrites have to be selected so as to become <strong>in</strong>tegrated <strong>in</strong>to the preexist<strong>in</strong>g<br />
functional network. Morover, we were also able to show that several drugs<br />
promot<strong>in</strong>g <strong>in</strong> vitro and <strong>in</strong> vivo neurogenesis actually <strong>in</strong>volve the NF-kappa<br />
signall<strong>in</strong>g pathway. Altogether, these data identify NF-κB signal<strong>in</strong>g components<br />
as critical mediators <strong>of</strong> adult neurogenesis and suggest that that they may<br />
represent previously undescribed therapeutical targets for neuropsychiatric<br />
disorders, <strong>in</strong>clud<strong>in</strong>g AD. The overall goal <strong>of</strong> this <strong>research</strong> proposal is evaluate<br />
whether a disregulated NF-kappaB signall<strong>in</strong>g may affect mechanisms regulat<strong>in</strong>g<br />
neuronal maturation and differentiation <strong>of</strong> adult generated neurons and, as a<br />
consequence, contribute to cognitive impairment associated with relevant CNS<br />
disorders. To this aim, we will use a relevant animal model <strong>of</strong> AD such as the<br />
TgCRND8 mouse l<strong>in</strong>e as well as the p50KO mice, both characterized by cognitive<br />
impairment. Experimental strategies will be applied to allow to prove the concept<br />
that this signal<strong>in</strong>g pathway can be pharmacologically modulated to promote adult<br />
neurogenesis and, <strong>in</strong> turn, ameliorate cognitive impairment. Our project has the<br />
potential to <strong>in</strong>crease our understand<strong>in</strong>g <strong>of</strong> the molecular participants <strong>in</strong> the<br />
modulation <strong>of</strong> adult neurogenesis <strong>in</strong> physiology and pathology and it also holds<br />
the potential for identify<strong>in</strong>g novel strategies aimed at ameliorat<strong>in</strong>g cognitive<br />
impairment associated with CNS disorders <strong>of</strong> high medical need but with no or<br />
unsatisfactory therapy.
Nome Fabrizio Chiti<br />
Contatti<br />
Tel.<br />
E mail<br />
Dip. di Scienze Biochimiche, Univ. di Firenze, V.le Morgagni 50, Firenze.<br />
Tel: +39-055-4598319<br />
e-mail: fabrizio.chiti@unifi.it<br />
Istituto/Dipartimento Dip. di Scienze Biochimiche, Università di Firenze, Viale Morgagni 50,<br />
Firenze<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse identificata We <strong>in</strong>tend to focus on the relationship structure-function <strong>of</strong> oligomers <strong>of</strong><br />
the β amiloid peptide and its analogues. We will use a number <strong>of</strong><br />
methodologies to ga<strong>in</strong> structural <strong>in</strong>formation on the oligomers at the<br />
molecular level, <strong>in</strong>clud<strong>in</strong>g site-directed mutagenesis, site-directed<br />
labell<strong>in</strong>g with molecular probes to be followed <strong>in</strong> fluorescence, NMR and<br />
EPR. We will also use cultured cells and animal models, evaluat<strong>in</strong>g the<br />
effect <strong>of</strong> structural changes <strong>of</strong> the oligomers on their toxicity, <strong>of</strong> <strong>in</strong>hibitors<br />
<strong>of</strong> toxicity such as chaperones and small molecules, <strong>of</strong> changes <strong>of</strong> the<br />
membrane lipid content, <strong>of</strong> the presence <strong>of</strong> glycosam<strong>in</strong>oglycans and<br />
other components <strong>of</strong> the extracellular matrix, and <strong>of</strong> protective agents<br />
such as extrogens, IGF-1 and others that mediate neuroprotection via the<br />
activation <strong>of</strong> the selad<strong>in</strong>-1 gene. We will use common cellular cultures but<br />
also cultures <strong>of</strong> primary neurons <strong>of</strong> rat and human ippocampi to evaluate,<br />
for example, <strong>in</strong>teractions between oligomers and synapses or oxidative<br />
stress <strong>of</strong> the membrane. We will also use animal models such as<br />
transgenic mice. The follow<strong>in</strong>g <strong>research</strong> groups will participate:<br />
Pr<strong>of</strong>. Fabrizio Chiti Dipartimento di Scienze Biochimiche<br />
Pr<strong>of</strong>. Massimo Stefani Dipartimento di Scienze Biochimiche<br />
D.ssa Crist<strong>in</strong>a Cecchi Dipartimento di Scienze Biochimiche<br />
Pr<strong>of</strong>. Fiorella Casamenti Dip. di Farmacologia Precl. e Cl<strong>in</strong>ica<br />
Pr<strong>of</strong>. Alessandro Peri Dipartimento di Fisiopatologia Cl<strong>in</strong>ica<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto The role <strong>of</strong> cholesterol <strong>in</strong> the pathogenesis <strong>of</strong> Alzheimer's disease<br />
Ente f<strong>in</strong>anziatore<br />
Fondazione Cassa di Risparmio di Pistoia e Pescia and Centro<br />
Internazionale delle Malattie neurodegenerative (CIMN)<br />
Durata progetto 12 months (January 2010 - December 2010)<br />
Abstract del progetto We will <strong>in</strong>vestigate the relationship between membrane cholesterol<br />
content and cytotoxicity <strong>in</strong>duced by Aβ oligomers on human<br />
neuroblastoma cells and primary fibroblasts from familial AD patients<br />
bear<strong>in</strong>g genetic mutations.<br />
Titolo progetto<br />
Cytotoxicity <strong>of</strong> amyloid aggregates <strong>in</strong> neuronal cells and <strong>in</strong> Alzheimer<br />
fibroblasts: effect <strong>of</strong> putative anticytotoxic molecules.<br />
Ente f<strong>in</strong>anziatore MIUR and Università di Firenze (c<strong>of</strong><strong>in</strong>anziamento PRIN 2008)<br />
Durata progetto 24 months (March 2010 – March 2012)<br />
Abstract del progetto We will study the ability <strong>of</strong> antioxidant compounds, such as glutathione<br />
thioesters (S-acyl-GSH) derivatives, to prevent the degenerative effects<br />
triggered by Aβ accumulation on primary cortical neurons, human<br />
neuroblastoma cells and primary sk<strong>in</strong> fibroblasts from familial AD
patients.<br />
Titolo progetto<br />
Effect <strong>of</strong> the extracellular matrix on the formation, stability and<br />
cytotoxicity <strong>of</strong> amyloid fibrils and their oligomeric precursors<br />
Ente f<strong>in</strong>anziatore MIUR and Università di Firenze (c<strong>of</strong><strong>in</strong>anziamento PRIN 2008)<br />
Durata progetto 24 months (March 2010 – March 2012)<br />
Abstract del progetto We will study the effect <strong>of</strong> components <strong>of</strong> the extracellular matrix where<br />
amyloid accumulate (chaperones, glycosam<strong>in</strong>oglycans, collagen fibres,<br />
etc.) on the formation, stability and toxicity <strong>of</strong> amyloid fibrils and their<br />
precursors<br />
Titolo progetto<br />
Study <strong>of</strong> the structure-toxicity relationship <strong>of</strong> prote<strong>in</strong> oligomers<br />
Ente f<strong>in</strong>anziatore EMBO Young Investigator Programme<br />
Durata progetto From 2005 to end <strong>of</strong> fund<strong>in</strong>g (still available to date)<br />
Abstract del progetto We will <strong>in</strong>vestigate the relationship between the structure <strong>of</strong> prote<strong>in</strong><br />
oligomers formed by a model prote<strong>in</strong>s at the molecular level and their<br />
biological effect on cultured cells, primary neurons and animal models<br />
Titolo progetto<br />
Structural and function aspects <strong>of</strong> lipid bilayers <strong>in</strong> molecular medic<strong>in</strong>e:<br />
<strong>in</strong>volvement <strong>of</strong> lipid rafts <strong>in</strong> human pathology<br />
Ente f<strong>in</strong>anziatore Cassa di Risparmio Firenze<br />
Durata progetto 36 months (2008-2010, but estende to one more year)<br />
Abstract del progetto<br />
The project will <strong>in</strong>vestigate the role <strong>of</strong> natural or synthetic llipid surfaces<br />
with different lipid composition and physicochemical features as<br />
modulators <strong>of</strong> peptide/prote<strong>in</strong> misfold<strong>in</strong>g and aggregation as well as <strong>of</strong><br />
amyloid toxicity.<br />
Titolo progetto<br />
Integrative approach to the <strong>in</strong>terplay between Aß, oxidative stress, the<br />
proteasome complex and the autophagic pathway. Effect <strong>of</strong><br />
neuroprotective molecules<br />
Ente f<strong>in</strong>anziatore MIUR and Università di Firenze (c<strong>of</strong><strong>in</strong>anziamento PRIN 2008)<br />
Durata progetto 24 months (March 2010 – March 2012)<br />
Abstract del progetto<br />
Titolo progetto<br />
To characterize <strong>in</strong> vivo <strong>in</strong> the TgCRND8 mouse model <strong>of</strong> ß-amyloid<br />
deposition the molecular bases correlat<strong>in</strong>g oxidative damage and<br />
autophagy and ubiquit<strong>in</strong>-proteasome dysfunctions to the gradual<br />
deposition <strong>of</strong> Aß and to evaluate the effects <strong>of</strong> neuroprotective drugs.<br />
Design <strong>of</strong> small molecule therapeutics for treatment <strong>of</strong> Alzheimer's<br />
disease based on the discovery <strong>of</strong> <strong>in</strong>novative drug targets.<br />
Ente f<strong>in</strong>anziatore European commission (6FP, ADIT) (project LSHB-CT-2005-511977)<br />
Durata progetto 5 years (June 2005-November 2010)<br />
Abstract del progetto<br />
Titolo progetto<br />
To analyze <strong>in</strong> vivo the expression and phosphorylation state <strong>of</strong> new<br />
prote<strong>in</strong> targets <strong>in</strong> selected bra<strong>in</strong> regions <strong>of</strong> mouse models <strong>of</strong> Aβ<br />
overproduction us<strong>in</strong>g standard immunohistochemical methodologies. To<br />
analyze phenotype <strong>of</strong> target over-expression <strong>in</strong> transgenic mice, generate<br />
<strong>in</strong>side the project, with respect to neurodegenerative and cognitive<br />
parameters<br />
Oleurope<strong>in</strong> aglycon and hydroxythyrosol as anti-aggregat<strong>in</strong>g molecules<br />
potentially exploitable <strong>in</strong> Alzheimer’s disease prevention and therapy
Ente f<strong>in</strong>anziatore Regione Toscana<br />
Durata progetto 4 months (November 2010 – October 2012)<br />
Abstract del progetto<br />
The <strong>research</strong> will study both <strong>in</strong> vitro and <strong>in</strong> vivo the anti-aggregat<strong>in</strong>g<br />
effect on Abeta42 <strong>of</strong> oleurope<strong>in</strong> aglycone and its derivative<br />
hydroxytyrosol, to assess the possible use <strong>of</strong> these molecules for<br />
prevention and treatment <strong>of</strong> Alzheimer’s disease.
2. PHARMACOLOGY<br />
E- Non-Pharmacological Therapies
Country: Italy<br />
Contact person: Pio E. Ricci Bitti, M.D. (Dept. <strong>of</strong> Psychology, University <strong>of</strong> Bologna)<br />
pioenrico.riccibitti@unibo.it<br />
Date: January 29, 2010<br />
I) Strategic Issues ( Justification <strong>of</strong> the importance <strong>of</strong> the issue )<br />
2.2.1 Bra<strong>in</strong> and bra<strong>in</strong>-related diseases<br />
An <strong>in</strong>creas<strong>in</strong>g number <strong>of</strong> Park<strong>in</strong>son disease (PD) patients are undergo<strong>in</strong>g deep bra<strong>in</strong> stimulation DBS).<br />
It is now important to evaluate not only the benefits concern<strong>in</strong>g the ma<strong>in</strong> symptoms related to movement,<br />
but also the psychological (cognitive, affective and behavioural) impact <strong>of</strong> DBS.<br />
II) Priority areas<br />
In relation to our experience with PD patients, the most important area to be evaluated by a psychological<br />
po<strong>in</strong>t <strong>of</strong> view is the possible <strong>in</strong>fluence <strong>of</strong> DBS on cognitive processes (such as memory, spatial orientation,<br />
time perception and perspective…).<br />
III) Impact <strong>of</strong> the <strong>research</strong> area<br />
The results <strong>of</strong> this k<strong>in</strong>d <strong>of</strong> studies could be used <strong>in</strong> order to propose specific<br />
psychoeducational <strong>in</strong>terventions to improve the cognitive efficacy <strong>of</strong> PD patients that underwent DBS
Nome Maurizio Taglialatela, MD PhD – Pr<strong>of</strong>essor <strong>of</strong> Pharmacology<br />
Claudio Russo, PhD – Associate Pr<strong>of</strong>essor <strong>of</strong> Pharmacoloy<br />
Alfonso Di Costanzo MD – Associate Pr<strong>of</strong>essor <strong>of</strong> Neurology<br />
Giovanni Scapagn<strong>in</strong>i MD PhD – Associate Pr<strong>of</strong>essor <strong>of</strong> Cl<strong>in</strong>ical<br />
Biochemistry<br />
Contatti<br />
Email: m.taglialatela@unimol.it<br />
Tel. +39-0874-404894/4851/4891<br />
Istituto/Dipartimento Dept. <strong>of</strong> Health Science, University <strong>of</strong> Molise<br />
Via De Sanctis, 8610 Campobasso - ITALY<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse<br />
identificata<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo<br />
progetto<br />
Ente<br />
f<strong>in</strong>anziatore<br />
Durata<br />
progetto<br />
Abstract del<br />
progetto<br />
Physical exercise and cognitive decl<strong>in</strong>e. Epidemiological studies have shown that<br />
physical exercise can delay the occurrence and the progression <strong>of</strong> dementia, but also to<br />
improve physical, cognitive and psychological performances, with a positive impact on<br />
the quality <strong>of</strong> life. The mechanisms <strong>in</strong>volved and the identification <strong>of</strong> potential<br />
biomarkers predictive <strong>of</strong> a positive response to physical activity are areas <strong>of</strong> <strong>in</strong>tense<br />
<strong>in</strong>vestigation. In our group, we are currently <strong>in</strong>vestigat<strong>in</strong>g the potential preventive role <strong>of</strong><br />
physical exercise programs on cognitive decl<strong>in</strong>e <strong>in</strong> subjects at risk to develop dementia.<br />
Our focus will be on subjects present<strong>in</strong>g with a subjective memory disturbance or<br />
affected by mild cognitive impairment (MCI).<br />
• Tedeschi G., et al. Bra<strong>in</strong> atrophy and lesion load <strong>in</strong> a large population <strong>of</strong> patients with<br />
multiple sclerosis. Neurology. 2005 Jul 26;65(2):280-5.<br />
• Tedeschi G., et al. Correlation between fatigue and bra<strong>in</strong> atrophy and lesion load <strong>in</strong> multiple<br />
sclerosis patients <strong>in</strong>dependent <strong>of</strong> disability. J Neurol Sci. 2007 Dec 15;263(1-2):15-9.<br />
Regulation <strong>of</strong> K + channels by APP-<strong>in</strong>teract<strong>in</strong>g prote<strong>in</strong>s: functional characterization and<br />
implications for AD-related neurodegeneration<br />
Regione Campania (2000-2003)<br />
3 years<br />
Recent experimental evidence suggest that K + channels play a major pathogenetic role <strong>in</strong><br />
Alzheimer disease. In the CNS, phosphorylation <strong>of</strong> voltage-gated K+ channels by tyros<strong>in</strong>e<br />
k<strong>in</strong>ases (PTK) is a fundamental process regulat<strong>in</strong>g their functional activity; its <strong>in</strong>hibition exerts a<br />
neuroprotective action <strong>in</strong> several experimental models <strong>of</strong> neuronal damage. On the other hand,<br />
the expression <strong>of</strong> several subclasses <strong>of</strong> K + channels can reduce cellular tyros<strong>in</strong>e k<strong>in</strong>ase activity,<br />
thus suggest<strong>in</strong>g the existence <strong>of</strong> a reciprocal <strong>in</strong>teraction between PTKs/PTPases and K +<br />
channels. Given that the cytosolic doma<strong>in</strong> <strong>of</strong> β-APP <strong>in</strong>fluences, through its adaptor prote<strong>in</strong>s<br />
Dab (disabled), X11 and Fe65, the tyros<strong>in</strong>e k<strong>in</strong>ase activity <strong>of</strong> Abl, <strong>in</strong> the present proposal we<br />
will:<br />
E. Evaluate the potential modulation <strong>of</strong> several classes <strong>of</strong> K + channels (Kv1.2, Kv1.3, Kv1.5,<br />
Kv2.1, ERG, KCNQ2+3) by adaptor prote<strong>in</strong>s able to b<strong>in</strong>d to β-APP (X11, Fe65, Dab).<br />
F. Verify the participation <strong>of</strong> tyros<strong>in</strong>e k<strong>in</strong>ase activity (and <strong>in</strong> particular <strong>of</strong> Abl), <strong>in</strong> this<br />
modulation.<br />
G. Investigate the potential <strong>in</strong>volvement <strong>of</strong> these channels <strong>in</strong> the cellular damage <strong>in</strong>duced by<br />
the hyperexpression <strong>of</strong> β-APP adaptor prote<strong>in</strong>s.<br />
H. Study the participation <strong>of</strong> K + channels and their regulation by oxidative stress <strong>in</strong> the<br />
neuronal death triggered by various cellular models <strong>of</strong> AD-related neurodegeneration.<br />
Titolo European Community contract N° LSHM-CT-2003-503330/Apopis : Abnormal prote<strong>in</strong>s <strong>in</strong> the
progetto<br />
Ente<br />
f<strong>in</strong>anziatore<br />
Durata<br />
progetto<br />
Abstract del<br />
progetto<br />
pathogenesis <strong>of</strong> neurodegenerative disorders<br />
Study on tyros<strong>in</strong>e phosphorylation <strong>of</strong> APP and its <strong>in</strong>teraction with <strong>in</strong>tracellular adaptors: role <strong>in</strong><br />
cell signal<strong>in</strong>g and <strong>in</strong> the generation <strong>of</strong> amyloidogenic fragments.<br />
European Community<br />
3 years (2004-2007)<br />
With<strong>in</strong> the WP 1 Generation and Turnover, our proposal is aimed to the def<strong>in</strong>ition <strong>of</strong> the role<br />
that posttrasductional modifications <strong>of</strong> APP, <strong>in</strong> particular its phosphorylation, may exert on its<br />
pathophysiologycal function. We will <strong>in</strong>vestigate both the role <strong>of</strong> phosphorylated APP/CTFs <strong>in</strong><br />
cell signal<strong>in</strong>g, and/or <strong>in</strong> the generation <strong>of</strong> amyloidogenic fragments and plaques through the<br />
<strong>in</strong>teraction with <strong>in</strong>tracellular adaptors, as well as the effect that site-specific tyr-phosphorylation<br />
would have on the direct amyloidogenic pathway <strong>of</strong> APP. These studies, which are focused <strong>in</strong> a<br />
completely new aspect <strong>of</strong> APP activity, would lead to the identification <strong>of</strong> early markers <strong>of</strong> the<br />
neurodegenerative process which occurs <strong>in</strong> AD, and to the def<strong>in</strong>ition <strong>of</strong> a potentially <strong>in</strong>novative<br />
therapeutical approach based on the f<strong>in</strong>d<strong>in</strong>gs obta<strong>in</strong>ed. Our proposal is aimed at:<br />
Aim 1) To study directly <strong>in</strong> human bra<strong>in</strong> the tyr-phosphorylation <strong>of</strong> APP and its CTFs and their<br />
possible coupl<strong>in</strong>g with <strong>in</strong>tracellular adaptors such as ShcA, and to correlate these data with the<br />
presence <strong>of</strong> neuropathologycal hallmarks <strong>of</strong> the disease. The comparative analysis <strong>in</strong> non-AD<br />
control, AD and/or Down’s syndrome subjects at different ages (from fetal to adult life) will<br />
allow a deeper characterization <strong>of</strong> the molecular determ<strong>in</strong>ants dur<strong>in</strong>g the progression <strong>of</strong> the<br />
disease.<br />
Aim 2) To study <strong>in</strong> transgenic mice carry<strong>in</strong>g APP and PS1 mutations the tyr-phosphorylation<br />
<strong>of</strong> APP and CTFs, their <strong>in</strong>teraction with ShcA-Grb2 adaptors and the <strong>in</strong>fluence that such<br />
<strong>in</strong>teraction could have on plaque formation, astroglial response, neuronal death. The use <strong>of</strong> a<br />
Tg model will allow at a deeper comprehension <strong>of</strong> the possible correlation between APP<br />
phosphorylation, its cleavage, signal<strong>in</strong>g activity and progressive presence <strong>of</strong> the typical<br />
hallmarks <strong>of</strong> the disease. Moreover, <strong>in</strong> this model is possible also to determ<strong>in</strong>e the effect that<br />
APP and PS1 mutations, which are l<strong>in</strong>ked with a human familial phenotype, would cause <strong>in</strong> the<br />
above mentioned parameters, and, <strong>in</strong> a second step, would allow the application <strong>of</strong> targeted<br />
therapeutical pharmacological approaches follow<strong>in</strong>g also the <strong>in</strong>dications raised from the <strong>in</strong> vitro<br />
studies (aim 3).<br />
Aim 3) To study <strong>in</strong> neuronal and/or glial cell cultures the molecular mechanisms which regulate<br />
APP phosphorylation, <strong>in</strong>fluence on cleavage by secretases, coupl<strong>in</strong>g with <strong>in</strong>tracellular adaptors,<br />
and signal<strong>in</strong>g activity. Us<strong>in</strong>g APP mutants, ShcA mutants, and APP KO cells we will def<strong>in</strong>e the<br />
<strong>in</strong>fluence that phosphorylation and <strong>in</strong>teraction with ShcA would cause <strong>in</strong> signal<strong>in</strong>g activity, cell<br />
proliferation and death, and <strong>in</strong> the generation <strong>of</strong> amyloidogenic fragments. Moreover, the study<br />
<strong>of</strong> the effect that proliferative and apoptotic stimuli may cause on those parameters and/or with<br />
the study <strong>of</strong> the k<strong>in</strong>ases <strong>in</strong>volved <strong>in</strong> the activation <strong>of</strong> APP cleavage and signal<strong>in</strong>g, this would<br />
also lead to the identification <strong>of</strong> pharmacological target for a therapeutical <strong>in</strong>tervention.
Nome Dr. Andrea Stracciari, dr.ssa Maria Guar<strong>in</strong>o, pr<strong>of</strong>. Fabio<br />
Contatti<br />
Cirignotta<br />
Istituto/Dipartimento Unità Operativa di Neurologia<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse identificata<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
Azienda Ospedaliero-Universitaria S. Orsola-Malpighi, Bologna<br />
Dipartimento Scienze Neurologiche - Università di Bologna<br />
New treatment strategies (non pharmacologic therapeutic<br />
strategies <strong>in</strong> neurodegenerative diseases)<br />
Cognitive tra<strong>in</strong><strong>in</strong>g <strong>in</strong> Park<strong>in</strong>son’s disease<br />
Fondazione del Monte di Bologna e Ravenna<br />
24 mesi<br />
Background. Patients with Park<strong>in</strong>son’s disease (PD) frequently<br />
present cognitive disturbances, which impair their autonomy and<br />
quality <strong>of</strong> life and are correlated with a significantly <strong>in</strong>creased death<br />
rate.
Objectives. The primary objective is to assess improvements <strong>in</strong><br />
quality <strong>of</strong> life <strong>in</strong> PD patients undergo<strong>in</strong>g cognitive tra<strong>in</strong><strong>in</strong>g.<br />
Secondary end-po<strong>in</strong>ts will be changes <strong>in</strong> cognitive capacity,<br />
autonomy, mood, cl<strong>in</strong>ical judgement and burden to caregivers.<br />
Methods. This is a prospective randomized, 8-week, s<strong>in</strong>gle bl<strong>in</strong>d, 2arm,<br />
multicenter, parallel-group study to evaluate the effect <strong>of</strong> task<br />
specific cognitive tra<strong>in</strong><strong>in</strong>g on quality <strong>of</strong> life <strong>in</strong> patients with cognitive<br />
impairment, but without dementia (MMSE> 24), due to idiopathic<br />
PD. Fifty patients per arm will be randomized to detect a 10 po<strong>in</strong>t<br />
difference <strong>in</strong> the PDQ-39 overall score.<br />
Expected results. An improvement <strong>in</strong> quality <strong>of</strong> life obta<strong>in</strong>ed by<br />
enhanc<strong>in</strong>g cognitive functions, namely executive functions, is<br />
expected a the ma<strong>in</strong> result, be<strong>in</strong>g considered a cl<strong>in</strong>ically relevant<br />
outcome.
Nome Orazio Zanetti<br />
Contatti ozanetti@fatebenefratelli.it<br />
Istituto/Dipartimento IRCCS Centro San Giovanni di Dio Fatebenefratelli- Brescia<br />
Proposta di ricerca<br />
Non <strong>in</strong>vasive bra<strong>in</strong> stimulation an <strong>in</strong>tegrated approach to neurorehabilitation <strong>in</strong> Alzheimer Disease<br />
Alzheimer’s Disease (AD) is a progressive disorder that impacts memory, language and several other<br />
cognitive functions. Given the limited effectiveness <strong>of</strong> pharmacological treatments, non-pharmacological<br />
<strong>in</strong>terventions <strong>in</strong> AD have ga<strong>in</strong>ed attention <strong>in</strong> recent years, and there are currently many different<br />
approaches under study, rang<strong>in</strong>g from multi-strategy approaches to cognitive tra<strong>in</strong><strong>in</strong>g (Cotelli et al 2006).<br />
Despite the potential therapeutic impact <strong>of</strong> the non-pharmacological approaches, the neural mechanisms<br />
underly<strong>in</strong>g the beneficial effects <strong>of</strong> behavioral <strong>in</strong>terventions rema<strong>in</strong> largely unknown. Functional<br />
neuroimag<strong>in</strong>g studies have shown that rehabilitation <strong>in</strong> patients with developmental and acquired<br />
cerebral damage may lead to functional cortical reorganization, a process mediated by activity-dependent<br />
plasticity mechanisms (Warburton et al 1999; Buckner et al 2004). These “plastic” mechanisms may also<br />
play a role <strong>in</strong> the ag<strong>in</strong>g bra<strong>in</strong> and <strong>in</strong> Alzheimer Disease (Cotelli et al 2006). An <strong>in</strong>crease <strong>in</strong> the activation <strong>of</strong><br />
areas <strong>in</strong>volved <strong>in</strong> memory, together with the recruitment <strong>of</strong> new areas dur<strong>in</strong>g memory <strong>in</strong>tensive tasks, has<br />
been confirmed us<strong>in</strong>g neuroimag<strong>in</strong>g techniques <strong>in</strong> AD patients who underwent behavioral <strong>in</strong>terventions<br />
(Cotelli et al 2008; Manenti et al 2008; Cotelli et al 2010 <strong>in</strong> press).<br />
Recent studies have reported enhanced performance on specific cognitive tasks <strong>in</strong> patients with several<br />
types <strong>of</strong> neurological disease, after receiv<strong>in</strong>g non <strong>in</strong>vasive bra<strong>in</strong> stimulation (BS), i.e., repetitive<br />
Transcranial Magnetic Stimulation (rTMS) or transcranial Current Stimulation (tCS) to specific cortical areas<br />
(M<strong>in</strong>iussi et al., 2008).<br />
Area di <strong>in</strong>teresse identificata<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
New treatment strategies
Nome PATRIZIA BISIACCHI<br />
Contatti 049 8276587<br />
Istituto/Dipartimento DIPARTIMENTO DI PSICOLOGIA GENERALE<br />
Proposta di ricerca<br />
Neurodegeneration occurr<strong>in</strong>g dur<strong>in</strong>g normal age<strong>in</strong>g affects several cognitive processes, particularly<br />
memory, attention, executive functions. With<strong>in</strong> these functions there are specific aspects that are<br />
particularly susceptible to impairment due to unhealthy age<strong>in</strong>g, such as work<strong>in</strong>g memory, control<br />
mechanisms and susta<strong>in</strong>ed attention. These are every day cognitive functions that are a result <strong>of</strong> a<br />
sequence <strong>of</strong> complex neurological processes. The bio-signals (i.e. EEG, NIRS etc) recorded from a set <strong>of</strong><br />
specific cognitive tasks have important roles <strong>in</strong> the assessment <strong>of</strong> these processes. Discover<strong>in</strong>g features <strong>in</strong><br />
signals <strong>of</strong> speech and visual process<strong>in</strong>g, which are modalities that are must less open to subjective<br />
<strong>in</strong>terpretation, would remove the subjective nature <strong>of</strong> some exist<strong>in</strong>g assessments. These modalities<br />
provide signals that can be collected remotely without significant amounts <strong>of</strong> resources and enable large<br />
<strong>research</strong> corpora <strong>of</strong> data, <strong>of</strong> great cl<strong>in</strong>ical significance, to be gathered effortlessly<br />
Specific focus <strong>of</strong> our <strong>research</strong>es is on the assessment <strong>of</strong> cognitive decl<strong>in</strong>e <strong>in</strong> older persons through the<br />
use <strong>of</strong> multimodal signal process<strong>in</strong>g (i.e. behavioural, EEG, ERPs, fNIRS, Eye movements etc.) .<br />
Current cl<strong>in</strong>ical measures <strong>of</strong> cognitive status and general wellness <strong>of</strong> the elderly have several limitations.<br />
Most must be adm<strong>in</strong>istered by tra<strong>in</strong>ed pr<strong>of</strong>essionals, the results <strong>of</strong> these measures can be affected by<br />
many external factors and the rat<strong>in</strong>gs can be affected by subjective scor<strong>in</strong>g. Discharg<strong>in</strong>g elderly patients<br />
from hospital can <strong>of</strong>ten rely on a cl<strong>in</strong>ician’s subjective op<strong>in</strong>ion about the patient’s ability to function <strong>in</strong><br />
their own home. The possibility to utilize a remote multimodal assessment will bypass such difficulties.<br />
Area di <strong>in</strong>teresse<br />
identificata<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
- Early diagnosis<br />
- Imag<strong>in</strong>g techniques and protocols<br />
- Standardization <strong>of</strong> diagnostic criteria and diagnostic<br />
<strong>in</strong>struments, harmonization and assessment tools<br />
- New treatment strategies<br />
- Ambient Assisted Liv<strong>in</strong>g, Home automation, smart<br />
homes and domotics<br />
- Cognitive Ergonomics, ICT for elderly/Gerontechnology<br />
ELDERGAMES (Development <strong>of</strong> High Therapeutic Value IST-based<br />
Games for Monitor<strong>in</strong>g and Improv<strong>in</strong>g the Quality <strong>of</strong> Life <strong>of</strong> Elderly<br />
People)<br />
PRINCIPAL INVESTIGATOR: PROF L. GAMBERINI<br />
Ente f<strong>in</strong>anziatore EU FP6<br />
€ 100.373,00<br />
Durata progetto 01/09/06 - 28/02/09<br />
Abstract del progetto Motivat<strong>in</strong>g and amus<strong>in</strong>g environments could help elderly<br />
people to preserve their cognitive functions and to improve their<br />
social life. Based on these premises, ELDERGAMES project
Titolo progetto<br />
developed a mixed reality table-top solution on which users have to<br />
exploit and tra<strong>in</strong> their cognitive abilities through m<strong>in</strong>d-challeng<strong>in</strong>g<br />
games <strong>in</strong> both collaborative and competitive sett<strong>in</strong>gs<br />
SENIORCHANNEL (ICT based solutions for the advancement <strong>of</strong><br />
social <strong>in</strong>teraction <strong>of</strong> elderly people)<br />
PRINCIPAL INVESTIGATOR: PROF L. GAMBERINI<br />
Ente f<strong>in</strong>anziatore<br />
EU- AAL/ MIUR<br />
€ 303.000,00<br />
Durata progetto 2010-2012<br />
Abstract del progetto Successful ag<strong>in</strong>g requires the <strong>in</strong>volvement <strong>of</strong> elderly people<br />
<strong>in</strong> activities such as <strong>in</strong>teract<strong>in</strong>g and shar<strong>in</strong>g their knowledge,<br />
op<strong>in</strong>ions and aspirations with the wider community.<br />
SENIORCHANNEL project aims at support<strong>in</strong>g these activities<br />
through the development <strong>of</strong> a low-cost <strong>in</strong>teractive IPTV and TV<br />
studio, through which elderly people will be able to create, <strong>in</strong>teract<br />
and enjoy contents exploit<strong>in</strong>g their creativity and knowledge.<br />
Titolo progetto<br />
EARLY COGNITIVE AND ELECTROENCEPHALOGRAPHIC MARKERS OF<br />
NORMAL AND PATHOLOGICAL AGEING<br />
PRINCIPAL INVESTIGATOR: PROF P. BISIACCHI<br />
Ente f<strong>in</strong>anziatore<br />
CARIPARO (Cassa di Risparmio di Padova e Rovigo)<br />
€ 45.000,00<br />
Durata progetto January 2009 – December 2011<br />
Abstract del progetto The ma<strong>in</strong> goal <strong>of</strong> the project is to <strong>in</strong>vestigate cognitive and<br />
electrophysiological alterations <strong>in</strong> healthy old <strong>in</strong>dividuals and <strong>in</strong><br />
MCI patients, <strong>in</strong> order to early identify markers <strong>of</strong> pathological<br />
age<strong>in</strong>g.<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
LIFESPAN CHANGES IN ELECTROPHYSIOLOGICAL PATTERNS<br />
ASSOCIATED WITH TEMPORAL DISCRIMINATION<br />
PRINCIPAL INVESTIGATOR: PROF P. BISIACCHI<br />
Bial Foundation<br />
€ 45.000,00<br />
Durata progetto January 2009 – December 2011<br />
Abstract del progetto The present project is aimed at clarify<strong>in</strong>g the specific contribution<br />
<strong>of</strong> frontal and parietal bra<strong>in</strong> regions <strong>in</strong> time process<strong>in</strong>g, and their<br />
development and decl<strong>in</strong>e with age by means <strong>of</strong> new EEG and ERPs<br />
methodologies <strong>of</strong> signal analyses. Results might further have<br />
cl<strong>in</strong>ical application <strong>in</strong> diagnosis and rehabilitation <strong>of</strong> Park<strong>in</strong>son’s<br />
disease and dementia.<br />
Titolo progetto<br />
AN INTEGRATED APPROACH TO NEUROCOGNITIVE ASSESSMENT OF<br />
OLD PEOPLE<br />
PRINCIPAL INVESTIGATOR: PROF P. BISIACCHI<br />
Ente f<strong>in</strong>anziatore<br />
FSE (Fondo Sociale Europeo) Regione Veneto<br />
€ 55.372,00
Durata progetto<br />
Abstract del progetto<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
March 2009 – February 2010<br />
The present project, thanks to the <strong>in</strong>tegration <strong>of</strong> psychological,<br />
medical and bioeng<strong>in</strong>eer<strong>in</strong>g competencies, was aimed at<br />
develop<strong>in</strong>g systems <strong>of</strong> analysis that optimize the use <strong>of</strong> ERP/EEG<br />
methodology <strong>in</strong> the screen<strong>in</strong>g <strong>of</strong> executive functions <strong>in</strong> old people.<br />
IMPLEMENTATION OF NEW EEG SIGNAL ANALYSES FOR THE<br />
DETECTION OF SUBCLINICAL COGNITIVE IMPAIRMENT<br />
PRINCIPAL INVESTIGATOR: PROF P. BISIACCHI<br />
FSE REGIONE VENETO<br />
€ 49.418,18<br />
01/04/10 - 31/03/11<br />
Abstract del progetto The goal <strong>of</strong> the project is to create a new <strong>in</strong>tegrate approach to<br />
detect subcl<strong>in</strong>ical cognitive alterations <strong>in</strong> many pathologies.<br />
Titolo progetto<br />
Cross Ages (Inter-generational learn<strong>in</strong>g. From diagnostic to impact<br />
evaluation)<br />
PRINCIPAL INVESTIGATOR: PROF R. DE BENI<br />
Ente f<strong>in</strong>anziatore<br />
EU<br />
€ 126.649,00<br />
Durata progetto 01/12/07 - 30/11/09<br />
Abstract del progetto Promot<strong>in</strong>g successful active age<strong>in</strong>g and social <strong>in</strong>clusion <strong>of</strong> older<br />
people <strong>in</strong> the local communities through the elaboration <strong>of</strong> an<br />
<strong>in</strong>tegrated lifelong learn<strong>in</strong>g model based on the <strong>in</strong>tergenerational<br />
exchange.
Nome Vania Broccoli<br />
Contatti<br />
02 26434616<br />
broccoli.vania@hsr.it<br />
Istituto/Dipartimento Neuroscience Division<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse identificata iPS technology <strong>of</strong>fers also an unprecedented opportunity to recapitulate<br />
both normal and pathologic human tissue formation <strong>in</strong> vitro, thereby<br />
enabl<strong>in</strong>g disease <strong>in</strong>vestigation and drug development.<br />
PD might greatly benefit from an approach with iPS, s<strong>in</strong>ce it is completely<br />
miss<strong>in</strong>g a valuable <strong>in</strong> vitro model <strong>of</strong> this pathology. In fact, up to now,<br />
primary sk<strong>in</strong> fibroblasts and lymphocytes have been the only<br />
human cells available for <strong>in</strong>vestigat<strong>in</strong>g the pathogenetic mechanisms <strong>of</strong><br />
PD. Although, they provided some <strong>in</strong>sights on the disease, their<br />
completely different nature and metabolism prevents ga<strong>in</strong><strong>in</strong>g <strong>in</strong>formation<br />
on the neuronal-specific degeneration processes. To overcome this<br />
limitation, disease affected neuronal cells<br />
would provide a completely new experimental system where to<br />
<strong>in</strong>vestigate the molecular roots <strong>of</strong> PD.<br />
This is even more important <strong>in</strong> PD, s<strong>in</strong>ce also the animal models used for<br />
many years for this pathology have shown some important limitations<br />
fail<strong>in</strong>g to recapitulate the normal evolution <strong>of</strong> the pathological<br />
process observed <strong>in</strong> the patients. In fact, most <strong>of</strong> the studies have relied<br />
on mouse models <strong>of</strong> PD, which might be divided <strong>in</strong> genetic or<br />
symptomatic. Mutant animals for the PD-genes have permitted the<br />
<strong>in</strong>vestigation <strong>of</strong> specific processes associated to neuronal death such as<br />
oxidative stress and mitochondrial dysfunctions, but usually lack key<br />
features <strong>of</strong> the human disease as for <strong>in</strong>stance selective degeneration <strong>of</strong><br />
dopam<strong>in</strong>ergic neurons.<br />
On the other hand, neurotox<strong>in</strong>s (6-hydroxydopam<strong>in</strong>e, Rotenone, MPTP,<br />
Paraquate) have been widely used to efficiently <strong>in</strong>duce dopam<strong>in</strong>ergic<br />
neurodegeneration <strong>in</strong> animals, but aga<strong>in</strong>, some <strong>of</strong> the specific<br />
pathological signs <strong>of</strong> the human disease are not recapitulated as, for<br />
<strong>in</strong>stance, the formation <strong>of</strong> Lewy bodies, the dynamics <strong>of</strong> neuronal death<br />
and a comparable development <strong>of</strong> the neurobehavioral deficits.<br />
For these reasons, the establishment <strong>of</strong> an iPS model system for PD might<br />
result particular significant.<br />
Indeed, there are some important features, which might enable this<br />
technology to be particular <strong>in</strong>formative <strong>in</strong> PD <strong>research</strong>. First <strong>of</strong> all, some<br />
different procedures have been proved rather efficient <strong>in</strong><br />
generat<strong>in</strong>g dopam<strong>in</strong>ergic neurons start<strong>in</strong>g from human ES and iPS cells. In<br />
particular, a treatment with FGF8 and Sonic Hedgehog (Shh) acts a strong<br />
enhancer <strong>of</strong> the <strong>in</strong> vitro dopam<strong>in</strong>ergic commitment. These<br />
factors could be associated with different <strong>in</strong> vitro conditions such as coculture<br />
systems with stromal cells or SMAD <strong>in</strong>hibitors that strongly <strong>in</strong>duce<br />
neuronal specification (Barberi et al., 2003; Chambers et al.,<br />
2009). Moreover, the identification <strong>of</strong> genes whose mutations cause<br />
dopam<strong>in</strong>ergic neuronal loss <strong>in</strong> a ma<strong>in</strong>ly cell-autonomous fashion allows to<br />
generate l<strong>in</strong>es <strong>of</strong> iPS cells with a known genetic alteration and<br />
compare them to those derived from PD sporadic cases.<br />
Furthermore, we plan to use iPS-derived dopam<strong>in</strong>ergic neurons as a<br />
source <strong>of</strong> transplantable cells <strong>in</strong> 6-hydroxidopam<strong>in</strong>e-treated rats and<br />
mice. Neurons will be grafted <strong>in</strong> either the striatum or the substantia
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
nigra and their survival, <strong>in</strong>tegration and functional activity will be<br />
analyzed. Behavioral studies will assess whether transplanted cells will be<br />
able to rescue the neurological impairment <strong>in</strong> these animals.<br />
Model<strong>in</strong>g Park<strong>in</strong>son’s disease by iPS technology: generation <strong>of</strong> human<br />
affected<br />
dopam<strong>in</strong>ergic neurons and gene disease correction by site-specific<br />
<strong>in</strong>tegration<br />
Ente f<strong>in</strong>anziatore ERANET-NEUON- EU<br />
Durata progetto 2010-2013<br />
Abstract del progetto Induced pluripotent stem (iPS) cells derived from somatic cells <strong>of</strong> patients<br />
represent an <strong>in</strong>novative tool for <strong>in</strong> vitro model<strong>in</strong>g <strong>of</strong> diseases and may<br />
provide a source for replacement therapies. In Park<strong>in</strong>son disease (PD),<br />
the identification <strong>of</strong> the pathophysiological mechanisms beh<strong>in</strong>d this<br />
common neurodegenerative pathology has been particularly hampered<br />
by the lack <strong>of</strong> genu<strong>in</strong>e <strong>in</strong> vitro models and animal models faithful to the<br />
human pathology.<br />
Exploit<strong>in</strong>g new generations <strong>of</strong> viral vectors express<strong>in</strong>g the reprogramm<strong>in</strong>g<br />
(Oct4, Sox2 and Klf4) genes <strong>in</strong> fibroblasts from sk<strong>in</strong> biopsies <strong>of</strong> the<br />
patients, we aim to establish faithful pluripotent iPS cell<br />
<strong>in</strong>es from sporadic and various monogenic forms <strong>of</strong> PD carry<strong>in</strong>g<br />
mutations <strong>in</strong> either SNCA, PINK1, Park<strong>in</strong>, LRRK2, DJ-1 or UCH-L1. In order<br />
to create an unprecedented <strong>in</strong> vitro culture system for PD affected human<br />
dopam<strong>in</strong>ergic (DA) neurons, iPS cells will be differentiated <strong>in</strong> vitro<br />
through the Shh/Fgf8 stepwise <strong>in</strong>duction protocol. Such patient-specific<br />
neurons will provide a system where we will <strong>in</strong>vestigate the mechanisms<br />
<strong>of</strong> genetic PD such as neuronal morphology, Lewy body formation,<br />
mitochondrial dysfunction, cell viability after oxidative and other<br />
stressors, <strong>in</strong>teractions between different disease prote<strong>in</strong>s, as well as<br />
electrophysiological deficits. For those experiments requir<strong>in</strong>g a pure<br />
population <strong>of</strong> DA neurons, Pitx3-GFP iPS cell l<strong>in</strong>es will be generated by<br />
means <strong>of</strong> BACtransgenesis enabl<strong>in</strong>g specific labell<strong>in</strong>g <strong>of</strong> nigral DA<br />
neurons. Thus, pure populations <strong>of</strong> GFP+ dopam<strong>in</strong>ergic neurons will be<br />
utilized for microarray based transcriptome pr<strong>of</strong>il<strong>in</strong>g compar<strong>in</strong>g PD versus<br />
control neuronal populations. These results promise to add precious<br />
<strong>in</strong>formation on both cellular and molecular pathological mechanisms<br />
lead<strong>in</strong>g ultimately to understand PD progression.<br />
Further, the establishment <strong>of</strong> human PD affected neurons will <strong>of</strong>fer a<br />
remarkable cell platform for future systematic drug screen<strong>in</strong>gs. F<strong>in</strong>ally,<br />
we will exploit an <strong>in</strong>novative strategy for site-specific <strong>in</strong>tegration <strong>of</strong> the<br />
therapeutic gene based on z<strong>in</strong>c f<strong>in</strong>ger nucleases mediated site-specific<br />
<strong>in</strong>tegration. This procedure will complement Park<strong>in</strong> mutated iPS cells by<br />
target<strong>in</strong>g the therapeutic gene <strong>in</strong> a safe and transcriptionally competent<br />
genomic harbour.<br />
Overall, this project has the ambitious task to pioneer new approaches<br />
for iPS cell generation and comb<strong>in</strong><strong>in</strong>g them to develop safe gene<br />
correction strategies. These new procedures represent a big advantage<br />
for a broad functional characterization <strong>of</strong> iPS-derived dopam<strong>in</strong>ergic<br />
neurons affected by PD. The successful achievements <strong>of</strong> our goals will<br />
disclose new opportunities for disease modell<strong>in</strong>g, drug-screen<strong>in</strong>gs and<br />
cell replacements strategies <strong>in</strong> PD.
Nome Neural regeneration <strong>in</strong> the cerebellum: development <strong>of</strong> cell replacement<br />
strategies for the management <strong>of</strong> sp<strong>in</strong>ocerebellar ataxias.<br />
Contatti<br />
Tel.<br />
E mail<br />
Gian Giacomo Consalez, Ferd<strong>in</strong>ando Rossi<br />
02 2643 4838<br />
giacomo.consalez@hsr.it, ferd<strong>in</strong>ando.rossi@unito.it<br />
Istituto/Dipartimento Istituto Scientifico San Raffaele, Università degli Studi di Tor<strong>in</strong>o<br />
Proposta di ricerca<br />
Optical And Biomolecular Methods For The Functional Investigation Of Neural Circuits In Vivo.<br />
Area di <strong>in</strong>teresse<br />
rigenerazione <strong>in</strong> modelli di malattia neurodegenerativa<br />
identificata<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Neural regeneration <strong>in</strong> the cerebellum: development <strong>of</strong> cell replacement<br />
strategies for the management <strong>of</strong> sp<strong>in</strong>ocerebellar ataxias.<br />
Ente f<strong>in</strong>anziatore Ataxia UK<br />
Durata progetto 2 anni<br />
The project will use the postnatal and adult mouse cerebellum as a model system to set up cell<br />
replacement protocols to treat degenerative disorders <strong>of</strong> the central nervous system and, namely,<br />
sp<strong>in</strong>ocerebellar ataxias.<br />
In this project, we plan to:<br />
1. determ<strong>in</strong>e the ability <strong>of</strong> PC progenitors isolated from the embryonic cerebellum to proliferate <strong>in</strong> the<br />
host tissue and <strong>in</strong>tegrate <strong>in</strong>to the wildtype and mutant cerebellar cortex<br />
2. analyze the spatio-temporal distribution <strong>of</strong> cues guid<strong>in</strong>g PCs <strong>in</strong> their migration <strong>in</strong>to the develop<strong>in</strong>g and<br />
adult cerebellar cortex<br />
3. manipulate the system to restore developmentally regulated cues guid<strong>in</strong>g PC progenitor hom<strong>in</strong>g and<br />
connectivity<br />
The cerebellum is a highly plastic system whose development is completed after birth. Numerous<br />
observations show that exogenous PCs grafted to the cerebellum may <strong>in</strong>tegrate productively and establish<br />
proper synaptic connections with their afferents and post-synaptic targets. Several Mendelian cerebellar<br />
disorders, metabolic or neurodegenerative, feature a selective loss <strong>of</strong> PCs, fully warrant<strong>in</strong>g an attempt to<br />
develop cell replacement strategies.<br />
We plan to analyze the ontogenetic mechanisms that direct the <strong>in</strong>tegration <strong>of</strong> PC progenitors <strong>in</strong> the<br />
cerebellar cortex <strong>of</strong> wild type and sp<strong>in</strong>ocerebellar ataxia type 2 mice, and determ<strong>in</strong>e whether they are still<br />
available (or they can be re-activated) <strong>in</strong> the adult to promote repair. Our strategy for cerebellar<br />
regeneration will be driven by this analysis, <strong>in</strong> an attempt to exploit exist<strong>in</strong>g cues and to enhance those<br />
that are lost <strong>in</strong> time, eventually favor<strong>in</strong>g the <strong>in</strong>tegration <strong>of</strong> exogenous precursors <strong>in</strong> the mature<br />
cerebellum.<br />
Protocols suited to promote the anatomical and functional <strong>in</strong>tegration <strong>of</strong> early PC progenitors <strong>in</strong>to the wt<br />
or mutant mouse cerebellum.
Nome Federico Schena<br />
Contatti<br />
Federico.schena@univr.it<br />
Istituto/Dipartimento Dipartimento di Neuroscienze-Sezione Scienze Motorie Università di<br />
Verona & Centro di ricerca <strong>in</strong> Bio<strong>in</strong>gegneria e Scienze Motorie, Rovereto<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse<br />
identificata<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
B. Physical activity programs for elderly<br />
subjects with different grades <strong>of</strong> cognitive<br />
impairment.<br />
Walk<strong>in</strong>g program for Alzheimer patients.<br />
Comune di Rovereto – Assessorato alle attività sociali<br />
Fondazione Mazzali - Mantova<br />
3 years<br />
Today, one <strong>of</strong> the ma<strong>in</strong> purposes <strong>of</strong> <strong>in</strong>stitutional long-term care is to <strong>of</strong>fer<br />
well-organized therapy that also enhances the patients’ functional<br />
abilities. New <strong>in</strong>tegrated cl<strong>in</strong>ical approaches concern<strong>in</strong>g physical exercise<br />
and Alzheimer’s disease (AD) have received attention <strong>in</strong> the scientific<br />
literature. Apart from <strong>in</strong>dividual rehabilitation, <strong>in</strong> the special care unit,<br />
patients rarely do physical activity alone; this phenomenon has been seen<br />
to cause a decl<strong>in</strong>e <strong>in</strong> the patients’ functional progress.<br />
Motor <strong>in</strong>activity and asthenia become evident <strong>in</strong> the later stages <strong>of</strong> AD,<br />
<strong>in</strong>clud<strong>in</strong>g the ability to step, walk, and sit up <strong>in</strong>dependently. There is<br />
evidence, however, that specific physical activities can slow down this<br />
<strong>in</strong>exorable decl<strong>in</strong>e. For example, Fiatarone et al. demonstrated that <strong>in</strong><br />
very old subjects high <strong>in</strong>tensity resistance tra<strong>in</strong><strong>in</strong>g and nutritional<br />
supplementation <strong>in</strong>creased gait velocity, stair climb<strong>in</strong>g power,<br />
spontaneous activity level, cross-sectional thigh area and maximal leg<br />
strength. Moreover, reports <strong>in</strong> the literature and recent guidel<strong>in</strong>es<br />
suggest that the oldest-old can enhance cardiovascular function,<br />
flexibility, balance and strength through systematic exercise tra<strong>in</strong><strong>in</strong>g.<br />
Most <strong>research</strong>ers <strong>in</strong> this field agree that also patients with Alzheimer’s<br />
disease can benefit from a targeted exercise program, because exercise<br />
has additional benefits for elderly dementia patients. [8-10] This notion<br />
has been proven <strong>in</strong> studies on AD patients; which have reported
numerous positive effects <strong>of</strong> physical exercise and walk<strong>in</strong>g programs:<br />
improvement <strong>in</strong> walk<strong>in</strong>g endurance, better ur<strong>in</strong>ary cont<strong>in</strong>ence, enhanced<br />
communication, reduced depression and an <strong>in</strong>crease <strong>in</strong> activities <strong>of</strong> daily<br />
life (ADLs).<br />
However <strong>in</strong> this <strong>in</strong>stitutional scenario, caregiver <strong>in</strong>tervention and<br />
<strong>in</strong>teraction with the medical staff and patients are rather difficult. In a<br />
nurs<strong>in</strong>g home, however, these important positive relationships were<br />
easier to manage.<br />
The aim <strong>of</strong> this program is to determ<strong>in</strong>ate whether an <strong>in</strong>stitution-based<br />
walk<strong>in</strong>g program carried out together with caregivers would reduce the<br />
functional, cognitive and physical decl<strong>in</strong>e <strong>of</strong> patients <strong>in</strong> the later stages <strong>of</strong><br />
Alzheimer’s disease. The walk<strong>in</strong>g program will be compared with rout<strong>in</strong>e<br />
care <strong>in</strong> a randomized controlled cl<strong>in</strong>ical trial. We hypothesized that<br />
patients <strong>in</strong> the walk<strong>in</strong>g program would show improvements <strong>in</strong> physical<br />
capacity, cognitive performance and biomedical outcomes compared<br />
with those <strong>in</strong> the control care group.
Nome<br />
Pr<strong>of</strong>. Enrico Granieri<br />
Contatti<br />
enrico.granieri@unife.it<br />
patrik.fazio@unife.it<br />
g<strong>in</strong>o.granieri@unife.it<br />
Istituto/Dipartimento Sezione di Neurologia, Dipartimento di Discipl<strong>in</strong>e Medico-chirurgiche della<br />
Comunicazione e del Comportamento, Università di Ferrara<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse<br />
identificata<br />
F<strong>in</strong>anziamenti ricevuti<br />
E. Non-Pharmacological Therapies<br />
Titolo progetto<br />
Promotion <strong>of</strong> Adapted Motor Activity among patients with Park<strong>in</strong>son’s<br />
disease<br />
Ente f<strong>in</strong>anziatore<br />
Fondazione Cassa di Risparmio di Cento,<br />
University <strong>of</strong> Ferrara<br />
Durata progetto 3 years<br />
Abstract del progetto An adapted motor activity could improve the pattern <strong>of</strong> body<br />
accelerometer and quality <strong>of</strong> life <strong>of</strong> patients with Park<strong>in</strong>son’s disease. A<br />
pleasant, playful motor activity associated with music can give a motor<br />
performance improvement <strong>in</strong> terms <strong>of</strong> velocity and acceleration <strong>of</strong> the<br />
gait, stability <strong>in</strong> posture and better and rapid execution <strong>of</strong> movements.<br />
Objective <strong>of</strong> the study is to demonstrate with different technique and<br />
measures whether or not objective differences are detectable <strong>in</strong> subjects<br />
with Park<strong>in</strong>son’s disease after an adapted motor activity based on<br />
emotional <strong>in</strong>volvement through pleasant exercises, such as music and<br />
dance. For this study we developed a triaxial accelerometer that can be<br />
located <strong>in</strong> three different locations <strong>of</strong> the body that allow to measure the<br />
average accelerations <strong>in</strong> the body trunk.<br />
At least 100 patients suffer<strong>in</strong>g from Park<strong>in</strong>son’s disease will be evaluated.<br />
The adapted motor activity session will be run twice a week, each <strong>of</strong><br />
which lasted 60 m<strong>in</strong>utes. They will be tested at entry <strong>of</strong> the study, after 4<br />
months <strong>of</strong> cont<strong>in</strong>uative motor activity and after 3 months follow<strong>in</strong>g the<br />
end <strong>of</strong> the sessions by accelerometer test, disability scale (UPDRS III),<br />
quality <strong>of</strong> life questionnaire (SF-36), MMSE, tapp<strong>in</strong>g test. Measures <strong>of</strong><br />
different doma<strong>in</strong>s with tests and objective measures with accelerometric<br />
techniques could improve our capability for the cl<strong>in</strong>ical monitor<strong>in</strong>g <strong>of</strong><br />
patients with movement disorders as Park<strong>in</strong>son disease. In the same<br />
contest we aim to demonstrate the efficacy, <strong>in</strong> cl<strong>in</strong>ical terms, <strong>of</strong> an<br />
adapted motor activity based on emotional <strong>in</strong>volvement through<br />
pleasant exercises with the support <strong>of</strong> music as a powerful cognitive and<br />
affective stimuli.<br />
(prelim<strong>in</strong>ary results <strong>of</strong> pilot studies has been shown at the Congresses <strong>of</strong><br />
<strong>Italian</strong> Society <strong>of</strong> Neurology and LIMPE <strong>in</strong> 2008, 2009 and 2010, at the<br />
Congresses <strong>of</strong> Neurology <strong>in</strong> Moskow [Russia] and Belgrade [Serbia] <strong>in</strong><br />
2010. Papers are submitted for publication <strong>in</strong> neurological journals).
Nome Dott.ssa Mariachiara Sensi<br />
Contatti<br />
mchiasen@gmail.com<br />
Istituto/Dipartimento U.O.Neurologia ,Dpartimento di Neuroscienze Riabilitazione,<br />
Ospedale S.Anna Ferrara<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse<br />
identificata<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
E. Non-Pharmacological Therapies<br />
New treatment strategies (non pharmacologic<br />
therapeutic strategies <strong>in</strong> neurodegenerative diseases) with Deep bra<strong>in</strong><br />
Stimulation <strong>in</strong> dystonic and Park<strong>in</strong>son Disease patients.<br />
None<br />
3 years<br />
To evaluate the long term response <strong>of</strong> Deep Bra<strong>in</strong> Stimulations on motor<br />
and non motor symptoms <strong>in</strong> Park<strong>in</strong>son disease and Dystonic Patients.<br />
The hypothesis is to test axial symptoms, dysartria, dysfagia, pa<strong>in</strong>, both<br />
cl<strong>in</strong>ically and with non <strong>in</strong>vasive imag<strong>in</strong>g techniques .
2. PHARMACOLOGY<br />
F. Drug Pharmacogenetics
Nome Alberto Pilotto<br />
Contatti<br />
Phone: +39 0882 410271<br />
Fax: +39 0882 410271<br />
E-mail: alberto.pilotto@operapadrepio.it<br />
Istituto/Dipartimento Unità Operativa di Geriatria & Laboratorio di Gerontologia-Geriatria<br />
Dipartimento di Scienze Mediche<br />
IRCCS Casa Sollievo della S<strong>of</strong>ferenza<br />
Viale Cappucc<strong>in</strong>i, 1 – 71013 San Giovanni Rotondo (FG)<br />
Proposta di ricerca<br />
Sporadic Alzheimer’s disease (AD) is a progressive neurodegenerative disorder occurr<strong>in</strong>g predom<strong>in</strong>antly <strong>in</strong><br />
older age. The prevalence <strong>of</strong> AD rise from 20% after 75 years to 30% after 85 years, and about 5% <strong>of</strong><br />
people aged 65 years or older have AD. With about 3 to 4 million people affected <strong>in</strong> the United States and<br />
about 350,000 new cases per year, AD is the most frequent cause <strong>of</strong> dementia <strong>in</strong> U.S. and <strong>in</strong> Western<br />
countries. Among the ma<strong>in</strong> cause lead<strong>in</strong>g to AD, the deficit <strong>of</strong> chol<strong>in</strong>ergic system plays a major role.<br />
Accord<strong>in</strong>gly, one <strong>of</strong> the most common therapy for the symptomatic treatment <strong>of</strong> AD is the block <strong>of</strong><br />
acetylchol<strong>in</strong>esterase (AChE) by means <strong>of</strong> acetylchol<strong>in</strong>esterase <strong>in</strong>hibitors. The <strong>in</strong>hibition <strong>of</strong> AChE <strong>in</strong>creases<br />
the concentration <strong>of</strong> acetylchol<strong>in</strong>e (ACh) <strong>in</strong> the synaptic cleft, thus restor<strong>in</strong>g the physiological effects <strong>of</strong><br />
ACh with<strong>in</strong> the central nervous system. Recent studies reported a significant benefits <strong>of</strong><br />
acetylchol<strong>in</strong>esterase <strong>in</strong>hibitors vs placebo on cognitive function, activities <strong>of</strong> daily liv<strong>in</strong>g, and behavior.<br />
These improvements, however, are not always detectable <strong>in</strong> cl<strong>in</strong>ical practice. Thus, it has been recently<br />
suggested that the detection <strong>of</strong> improvements on cognitive function, activities <strong>of</strong> daily liv<strong>in</strong>g, and behavior<br />
may be obta<strong>in</strong>ed by the concomitant use <strong>of</strong> drugs act<strong>in</strong>g on other pathogenetic AD mechanism. In<br />
particular the European Medical Agency (EMEA) recommend the use <strong>of</strong> the AChE <strong>in</strong>hibitors donepezil and<br />
rivastigm<strong>in</strong>e <strong>in</strong> mild-to-moderate AD, and the addition <strong>of</strong> memant<strong>in</strong>e <strong>in</strong> moderate-to-severe AD.<br />
Memant<strong>in</strong>e block the glutamate receptor, limit<strong>in</strong>g the uncontrolled entrance <strong>of</strong> Ca 2+ ion <strong>in</strong> the<br />
postsynaptic neuron, thus delay<strong>in</strong>g the Ca 2+ -excess neurodegeneration. Most studies reported that<br />
<strong>in</strong>ter<strong>in</strong>dividual differences <strong>in</strong> response to these drugs may be due to variability <strong>in</strong> drug metabolism related<br />
to behavioral, cl<strong>in</strong>ical, and genetic factors, ma<strong>in</strong>ly hereditary polymorphisms <strong>of</strong> drug-metaboliz<strong>in</strong>g and<br />
drug-transport<strong>in</strong>g enzymes. F<strong>in</strong>al objective <strong>of</strong> this proposal is to identify the genetic component<br />
underly<strong>in</strong>g the response/non response to the most common drugs currently used <strong>in</strong> the treatment <strong>of</strong> AD,<br />
i.e. donepezil, rivastigm<strong>in</strong>e and memant<strong>in</strong>e, throughout the follow<strong>in</strong>g specific objectives: 1) identification<br />
<strong>of</strong> significant difference <strong>in</strong> the distribution <strong>of</strong> the genotypes <strong>of</strong> the CYP2D6 gene polymorphisms among<br />
patients responders/non-responders to donepezil treatment; 2) identification <strong>of</strong> the specific DNA<br />
alteration produc<strong>in</strong>g modifications <strong>in</strong> the CYP2D6 enzyme activity; 3) confirmation <strong>of</strong> the modification <strong>of</strong><br />
the enzyme activity by means <strong>of</strong> donepezil dosage <strong>in</strong> vivo; 4) identification <strong>of</strong> significant difference <strong>in</strong> the<br />
distribution <strong>of</strong> the genotypes <strong>of</strong> the acetylchol<strong>in</strong>esterase gene polymorphisms among patients<br />
responders/non-responders to rivastigm<strong>in</strong>e treatment; 5) identification <strong>of</strong> the specific DNA alteration<br />
produc<strong>in</strong>g modifications <strong>in</strong> the acetylchol<strong>in</strong>esterase-mediated hydrolysis <strong>of</strong> rivastigm<strong>in</strong>e; 6) confirmation<br />
<strong>of</strong> the modification <strong>of</strong> the enzyme activity by means <strong>of</strong> rivastigm<strong>in</strong>e dosage <strong>in</strong> vivo; 7) identification <strong>of</strong><br />
significant difference <strong>in</strong> the distribution <strong>of</strong> the genotypes <strong>of</strong> the OCT2 gene polymorphisms among<br />
patients responders/non-responders to memant<strong>in</strong>e treatment; 8) identification <strong>of</strong> the specific DNA<br />
alteration produc<strong>in</strong>g modifications <strong>in</strong> the OCT2 transporter <strong>of</strong> memant<strong>in</strong>e; 9) confirmation <strong>of</strong> the<br />
modification <strong>of</strong> the enzyme activity by means <strong>of</strong> memant<strong>in</strong>e dosage <strong>in</strong> vivo. We expected that the<br />
identification <strong>of</strong> functional polymorphisms <strong>in</strong> the CYP2D6, AChE and OCT2 genes may <strong>in</strong>fluence the cl<strong>in</strong>ical<br />
efficacy <strong>of</strong> donepezil, rivastigm<strong>in</strong>e and memant<strong>in</strong>e <strong>in</strong> AD patients, and may be useful <strong>in</strong> identify<strong>in</strong>g<br />
subgroups <strong>of</strong> AD patients with different cl<strong>in</strong>ical response to treatment. Criteria and <strong>in</strong>dicators to verify<br />
results are: 1) the number <strong>of</strong> patients enrolled <strong>in</strong> the study <strong>in</strong> the first 6 months; 2) the number <strong>of</strong><br />
genotypes <strong>in</strong>vestigated at the end <strong>of</strong> the 1 th year <strong>of</strong> the project; 3) the number <strong>of</strong> specific gene alteration<br />
<strong>in</strong>fluenc<strong>in</strong>g the enzyme activity at the 2 nd year <strong>of</strong> the project; 4) the quantitative data obta<strong>in</strong>ed from<br />
plasma drug dosage at the end <strong>of</strong> the 2 nd year <strong>of</strong> the project. This project is coherent with the m<strong>in</strong>isterial
guidel<strong>in</strong>es for the I.R.C.C.S. and well <strong>in</strong>tegrate the cl<strong>in</strong>ical practice <strong>in</strong> neurology.<br />
Area di <strong>in</strong>teresse<br />
identificata<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
Pharmacogenetics <strong>of</strong> drugs for Alzheimer’s Disease<br />
Effect <strong>of</strong> weight loss on metabolic, functional, cognitive status and<br />
biological markers <strong>of</strong> longevity <strong>in</strong> obese frail elderly<br />
M<strong>in</strong>istero della Salute<br />
Two years<br />
Obesity, and <strong>in</strong> particular abdom<strong>in</strong>al obesity causes serious metabolic and<br />
medical complications and impairs quality <strong>of</strong> life. Moreover, <strong>in</strong> elderly<br />
persons, obesity can lead to frailty by promot<strong>in</strong>g chronic <strong>in</strong>flammation<br />
and by exacerbat<strong>in</strong>g the decl<strong>in</strong>e <strong>in</strong> strength, endurance, balance and<br />
mobility associated with ag<strong>in</strong>g and physical <strong>in</strong>activity. Weight loss,<br />
<strong>in</strong>duced by calorie restriction and/or physical exercise, simultaneously<br />
improves multiple metabolic risk factors for cardiovascular disease and<br />
other medical abnormalities associated with obesity, and reduce<br />
morbidity and mortality. However, the appropriate treatment for obesity<br />
<strong>in</strong> elderly persons is controversial because <strong>of</strong> the potential harmful<br />
effects <strong>of</strong> weight loss on bone and muscle mass. It has been reported that<br />
weight loss can also modify biological pathways at the cellular level.<br />
Insul<strong>in</strong> and <strong>of</strong> <strong>in</strong>sul<strong>in</strong>-like growth factor-1 (IGF-1) have been <strong>in</strong>volved <strong>in</strong><br />
cellular caloric equilibrium and other mechanisms, i.e. oxidative stress<br />
and <strong>in</strong>flammation. Thus genetic polymorphisms <strong>in</strong> genes <strong>in</strong>volved <strong>in</strong> these<br />
metabolic pathways such as apolipoprote<strong>in</strong> E (APOE), sterol regulatory<br />
element-b<strong>in</strong>d<strong>in</strong>g prote<strong>in</strong> cleavage-activat<strong>in</strong>g prote<strong>in</strong> (SCAP), peroxisome<br />
proliferators-activated receptor gamma-2 (PPRγ), α-2B-adrenergic<br />
receptor (ADRA2B), acyl-CoA synthetase 5 (ACSL5) and <strong>in</strong>terleuk<strong>in</strong>-6 (IL-6)<br />
may <strong>in</strong>fluence the effect <strong>of</strong> weight loss on biological mechanisms and<br />
possibly on functional and cognitive status <strong>in</strong> the frail elderly. It is possible<br />
that weight loss <strong>in</strong> obese elderly persons can be beneficial by improv<strong>in</strong>g<br />
metabolic, functional and cognitive status, or harmful by caus<strong>in</strong>g a<br />
decrease <strong>in</strong> muscle and bone mass. However, the cl<strong>in</strong>ical and<br />
physiological effects <strong>of</strong> weight loss <strong>in</strong> obese elderly subjects have never<br />
been carefully evaluated. Thus, appropriate treatment for this rapidly<br />
<strong>in</strong>creas<strong>in</strong>g segment <strong>of</strong> the elderly population rema<strong>in</strong>s controversial. The<br />
purpose <strong>of</strong> this project is to advance our scientific knowledge by<br />
determ<strong>in</strong><strong>in</strong>g the effects <strong>of</strong> weight loss on metabolic, functional and<br />
cognitive status <strong>in</strong> obese elderly subjects. Moreover, we will evaluate the<br />
role <strong>of</strong> weight loss on biological markers <strong>of</strong> metabolic health and<br />
longevity, i.e. serum level <strong>of</strong> Insul<strong>in</strong>, <strong>in</strong>sul<strong>in</strong>-like growth factor-1 (IGF-1),<br />
transform<strong>in</strong>g growth factor-β (TGF-β), tumor-necrosis factor-α (TNF-α),<br />
<strong>in</strong>terleuk<strong>in</strong>-1 (IL-1) and C-Reactive Prote<strong>in</strong> (CRP), and their relationships<br />
with genetic polymorphisms <strong>in</strong> APOE, SCAP, PPR-γ, ADRA2B, ACSL5 and IL-<br />
6 genes. As biomarker <strong>of</strong> longevity we will also evaluate the accumulation<br />
<strong>of</strong> mitochondrial (mt) DNA mutation through the analysis <strong>of</strong> the D310<br />
mononucleotide repeat <strong>of</strong> mtDNA.
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
Smart Home for Elderly People (HOPE)<br />
M<strong>in</strong>istero della salute/M<strong>in</strong>istero dell’Università e della Ricerca Scientifica<br />
Two years<br />
S<strong>in</strong>ce Europe’s and worldwide population grows older, the need for care<br />
is grow<strong>in</strong>g as well as people spend more money to get it. The solution<br />
Smart Home for Elderly People (HOPE) promises to reduce the need for<br />
carers, improve the life <strong>of</strong> older people and cut the cost <strong>of</strong> assistance. The<br />
ma<strong>in</strong> objective <strong>of</strong> the “Hope” project is to produce an Integrated<br />
Computer Technology (ICT) solution that will help the elderly people,<br />
specifically those that suffer with the Alzheimer s disease (AD), achieve a<br />
richer and more <strong>in</strong>dependent lifestyle. Dementia causes long and<br />
oppressive suffer<strong>in</strong>g to patients and their relatives and imposes<br />
enormous costs on society. About 25 million people suffered from<br />
dementia <strong>in</strong> recent years. As a 4-fold <strong>in</strong>crease <strong>of</strong> this number is expected<br />
by 2050, dementia is one ma<strong>in</strong> health issue <strong>of</strong> the next decades. AD<br />
covers 50-70% <strong>of</strong> all dementia cases, no cure exists, and effective and<br />
reliable early diagnostic techniques are lack<strong>in</strong>g. Early diagnosis and<br />
progress monitor<strong>in</strong>g <strong>of</strong> AD is a central part <strong>of</strong> treatment until future drugs<br />
and prevention strategies become available. Elderly people with AD<br />
spend most <strong>of</strong> their time at home. The “HOPE” solution consists <strong>of</strong> an<br />
<strong>in</strong>tegrated, smart platform that will enable the elderly people with AD to<br />
use <strong>in</strong>novative technology for a more <strong>in</strong>dependent life, easy access to<br />
<strong>in</strong>formation, monitor their health, and serve as a source <strong>of</strong> <strong>in</strong>spiration for<br />
users as well as for people work<strong>in</strong>g with assistive devices. Moreover, it<br />
will enable them to perform by themselves activities they were not able<br />
to do before and which are important for their daily personal life. The<br />
ma<strong>in</strong> advantage <strong>of</strong> the proposed system is that it provides a basis for<br />
<strong>in</strong>tegrat<strong>in</strong>g services for the elderly population while they are at home.<br />
HOPE is a budgeted solution that will be <strong>in</strong>stalled at the elderly people’s<br />
homes, and will provide services for (a) life-long, self organized,<br />
appropriate educational environment and access to <strong>in</strong>formation, (b) care<br />
management and health support, (c) self monitor<strong>in</strong>g and decision mak<strong>in</strong>g.<br />
Optionally, the user will be able to activate s<strong>of</strong>tware which automatically<br />
establishes the necessary <strong>in</strong>teractive, triple-play connection for receiv<strong>in</strong>g<br />
tele-help and tele-assistance from specialized service providers, doctors<br />
or other medical personnel. The proposed application will be <strong>in</strong>telligent<br />
enough to <strong>of</strong>fer safety <strong>in</strong> terms <strong>of</strong> controll<strong>in</strong>g efficiently the home<br />
environment, economy <strong>in</strong> terms <strong>of</strong> controll<strong>in</strong>g and decreas<strong>in</strong>g the need<br />
for external help, and convenience <strong>in</strong> terms <strong>of</strong> adjust<strong>in</strong>g the operation <strong>of</strong><br />
connected sub-systems to achieve the best possible user experience.
2. PHARMACOLOGY<br />
G. Cl<strong>in</strong>ical studies
Nome Pr<strong>of</strong>. Carlo Caltagirone<br />
Contatti<br />
Tel.<br />
E mail<br />
Via Ardeat<strong>in</strong>a, 306 – 00179 Rome<br />
06 51501409<br />
c.caltagirone@hsantalucia.it<br />
Istituto/Dipartimento IRCCS Fondazione Santa Lucia – Laboratory <strong>of</strong> Cl<strong>in</strong>ical and Behavioral<br />
Neurology.<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse<br />
identificata<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
Neurocognition <strong>in</strong> Alzheimer Disease<br />
Mortality <strong>of</strong> elderly us<strong>in</strong>g conventional and non conventional<br />
antipsychotic drugs for the behavioural and psychological symptoms <strong>of</strong><br />
dementia and for other psychical disorders.<br />
AIFA<br />
2007-2010<br />
Background. Antipsychotic drugs are used to control the<br />
behavioral and psychological disturbances that <strong>of</strong>ten occur <strong>in</strong><br />
elderly, particularly <strong>in</strong> those who suffer from dementia. Nonconventional<br />
drugs are perceived by cl<strong>in</strong>icians to be better tolerated<br />
than conventional ones and for this reason are more frequently<br />
adopted for frail and elderly patients. However, reports from<br />
ongo<strong>in</strong>g randomized cl<strong>in</strong>ical trials on risperidone and olanzap<strong>in</strong>e<br />
(two non conventional antipsychotic drugs) <strong>in</strong> elderly with dementia,<br />
signaled an <strong>in</strong>creased mortality and <strong>in</strong>cidence <strong>of</strong> cerebrovascular<br />
events <strong>in</strong> patients assigned to active drug with respect to placebo.<br />
After this <strong>in</strong>itial report, a formal meta-analysis <strong>of</strong> fifteen randomized<br />
placebo-controlled trials, (3,353 patients randomized to<br />
nonconventional antipsychotic drugs and 1,757 randomized to<br />
placebo) confirmed the existence <strong>of</strong> a small <strong>in</strong>crease <strong>in</strong> mortality <strong>in</strong><br />
those patients who had been assigned to active drugs. For this<br />
reason, <strong>in</strong> European and extra European countries, the health<br />
authorities <strong>in</strong>troduced some limitations to the use <strong>of</strong> these non<br />
conventional drugs. When a drug treatment for behavioral<br />
disturbances becomes necessary, these limitative measures favor<br />
the use <strong>of</strong> conventional drugs but it is not known whether<br />
conventional antipsychotics are safer than conventional ones.<br />
Objectives. To assess, <strong>in</strong> a large population <strong>of</strong> elderly<br />
residents <strong>in</strong> different <strong>Italian</strong> Regions (Piemonte, Emilia,<br />
Marche) and <strong>in</strong> the metropolitan area <strong>of</strong> Milan the overall<br />
and cause specific mortality associated with the use <strong>of</strong>
conventional and non conventional antipsychotic drugs.<br />
Methods. Us<strong>in</strong>g the <strong>in</strong>formative systems <strong>of</strong> the regional health<br />
authorities and <strong>of</strong> the health district <strong>of</strong> Milan we will compose a<br />
population cohort formed by all the persons <strong>of</strong> 60 years or older<br />
who were prescribed an antipsychotic drug for the first time from<br />
January 2001. It is expected that this cohort might be <strong>of</strong> over 30000<br />
elderly persons. For each <strong>in</strong>cluded person the last date <strong>of</strong> existence<br />
<strong>in</strong> life or the date <strong>of</strong> death will be retrieved. Mortality will be<br />
evaluated from first assumption <strong>of</strong> antipsychotic drug by type <strong>of</strong><br />
drug used (conventional, non conventional) and by great groups <strong>of</strong><br />
causes <strong>of</strong> death (tumors, cardio vascular diseases and other<br />
causes). Mortality will be separately assessed for elderly users <strong>of</strong><br />
antipsychotic and antidementia drugs.<br />
Expected results. This retrospective analysis <strong>of</strong> survival on an<br />
extraord<strong>in</strong>arily large cohort will give further evidences about the<br />
potential role <strong>of</strong> treatment with antipsychotic drugs <strong>in</strong> survival <strong>of</strong><br />
elderly with and without dementia.
3. HUMAN/CLINICAL RESEARCH<br />
A . Human –epidemiology/risk factors
Country: Italy<br />
Contact person: Gabbianelli Rosita or C<strong>in</strong>zia Nasuti<br />
School <strong>of</strong> Pharmacy, University <strong>of</strong> Camer<strong>in</strong>o,<br />
Date: 29/01/2010<br />
I) Strategic Issues<br />
The ma<strong>in</strong> focus <strong>of</strong> our <strong>research</strong> is the development <strong>of</strong> a progressive neurodegenerative PD rat model. The<br />
<strong>research</strong> is based upon a multidiscipl<strong>in</strong>ary and <strong>in</strong>tegrated consortium br<strong>in</strong>g<strong>in</strong>g together field based<br />
<strong>research</strong>ers (genetic, molecular biology, biochemistry, toxicology and chemistry), from 1 Asian and 7<br />
European countries, and 1 SME (University Medical Center Gron<strong>in</strong>gen Netherlands; Institut für Organische<br />
Chemie der RWTH, Germany; Biological Research Center <strong>of</strong> the Hungarian Academy <strong>of</strong> Sciences, Hungary;<br />
Instituto de Tecnologia Química e Biológica, Portugal; Departamento de Engenharia Química ISEP, Portugal;<br />
Technological Educational Institute <strong>of</strong> Athens, Greece; Alagappa University, India; SME, Chema Diagnostica<br />
di Marco Fiore, Italy).<br />
Environmental contam<strong>in</strong>ants accumulated through the food cha<strong>in</strong> can perturb normal physiologic<br />
processes lead<strong>in</strong>g to the <strong>in</strong>itiation and progression <strong>of</strong> the Park<strong>in</strong>son’s disease (PD). The consequences<br />
deriv<strong>in</strong>g from early life exposure to these environmental factors can <strong>in</strong>fluence variability <strong>of</strong> life span and<br />
the health pr<strong>of</strong>ile <strong>of</strong> the elderly <strong>in</strong> the human population.<br />
PD neuropathology is characterized by the degeneration <strong>of</strong> the nigrostriatal dopam<strong>in</strong>ergic pathway. It is the<br />
second most common neurodegenerative disorder, affect<strong>in</strong>g 1-2 % <strong>of</strong> the population over the age <strong>of</strong> 50. PD<br />
prevalence studies show that the number <strong>of</strong> <strong>in</strong>dividuals with PD over age 50 (4.1-4.6 millions) will double<br />
by 2030 <strong>in</strong> Western European nations (8.7-9.3 million). Moreover the burden <strong>of</strong> PD will also shift from more<br />
<strong>in</strong>dustrialized nations to develop<strong>in</strong>g Asian nations (India, Ch<strong>in</strong>a etc.) where survival <strong>of</strong> <strong>in</strong>dividuals is likely<br />
expected to grow with improv<strong>in</strong>g economic conditions and health care.<br />
Environmental factors such as lifestyle, diet, pesticides, metals and solvents, seem to be <strong>in</strong>volved <strong>in</strong> the<br />
development <strong>of</strong> neurodegeneration by caus<strong>in</strong>g epigenetic modification <strong>in</strong> people with PD over 50 years old.<br />
Pesticides are one <strong>of</strong> the most important risk factors <strong>of</strong> epigenetic changes that affect the development <strong>of</strong><br />
PD. Permethr<strong>in</strong> (PERM) is a pesticide ma<strong>in</strong>ly used <strong>in</strong> agriculture, <strong>in</strong> healthcare, <strong>in</strong> <strong>in</strong>dustrial and domestic<br />
sett<strong>in</strong>gs, and <strong>in</strong> public health services. It is employed <strong>in</strong> tropical areas to prevent mosquito-borne disease.<br />
Several studies f<strong>in</strong>d that pyrethroids persist <strong>in</strong> house dust <strong>in</strong> significant concentrations for months after<br />
they are applied for pest control operation and specifically, their metabolites were found <strong>in</strong> greater than 50<br />
% <strong>in</strong> the ur<strong>in</strong>e <strong>of</strong> the subjects tested (Riederer et al., 2008). The potential consequences <strong>of</strong> pesticide<br />
exposure are greater for children than for adults. Children have higher risk <strong>of</strong> pesticide exposure due to<br />
behaviours such as mouth<strong>in</strong>g items and play<strong>in</strong>g on floors. Nevertheless, the primary exposure pathway <strong>of</strong><br />
pyrethroids <strong>in</strong> humans is thought to be through dietary <strong>in</strong>take <strong>of</strong> vegetables, fruits and cereals. It is a<br />
consequence <strong>of</strong> pesticide residues that has accumulated <strong>in</strong> soil and groundwater that is re-cycled for<br />
irrigation <strong>of</strong> crops.
Given the complexity <strong>of</strong> the many factors to which the populations described <strong>in</strong> the PD epidemiological<br />
studies have been exposed, the criteria to identify candidate substances as causative factors <strong>of</strong> PD have to<br />
follow these po<strong>in</strong>ts: 1) effects on the striatal dopam<strong>in</strong>ergic system (decrease <strong>in</strong> dopam<strong>in</strong>e level/<strong>in</strong>crease <strong>of</strong><br />
its metabolites, decreased <strong>in</strong> dopam<strong>in</strong>e transporter and enzyme tyros<strong>in</strong>e hydroxylase activity; 2) damages<br />
on substantia nigra and striatum; 3) mechanistic effects (e.g. on oxidative stress, mitochondrial<br />
dysfunction/complex I <strong>in</strong>hibition, and alpha-synucle<strong>in</strong> aggregation). Our previous studies show that<br />
permethr<strong>in</strong> <strong>in</strong>secticide, belong<strong>in</strong>g to the pyrethroids family, could be the ideal candidate to satisfy the ma<strong>in</strong><br />
criteria suggested above. Firstly, mitochondria complex I activity was <strong>in</strong>hibited <strong>in</strong> striatum cells <strong>in</strong>cubated<br />
with PERM (paper submitted to Neuroscience). Secondly, <strong>in</strong> vivo studies on pup rats treated with PERM<br />
dur<strong>in</strong>g bra<strong>in</strong> development (from 6 th to 15 th day <strong>of</strong> life) showed an imbalance <strong>in</strong> the dopam<strong>in</strong>ergic system<br />
(Nasuti et al., 2007). High homovanillic acid levels and reduced dopam<strong>in</strong>e concentrations were measured <strong>in</strong><br />
the striatum <strong>of</strong> 35 day old rats treated. The period <strong>of</strong> treatment correspond<strong>in</strong>g to neurodevelopment<br />
events (synaptogenesis) <strong>in</strong> rat bra<strong>in</strong>, occurs <strong>in</strong> the third trimester <strong>of</strong> pregnancy <strong>in</strong> humans. Increased<br />
oxidative stress <strong>in</strong> striatum (glutathione depletion, <strong>in</strong>crease <strong>of</strong> prote<strong>in</strong> oxidation), blood cells (decrease <strong>of</strong><br />
glutathione peroxidase, <strong>in</strong>crease <strong>of</strong> lipid peroxidation, unbalance <strong>of</strong> monocytes and neuthrophils<br />
respiratory burst), and behavioural modifications were measured (Nasuti et al., 2007; Gabbianelli et al.,<br />
2009, a; Gabbianelli et al., 2009, b). Thirdly, markers related to oxidative stress, such as DNA damage,<br />
changes <strong>in</strong> plasma membrane fluidity and antioxidant enzyme activities were observed <strong>in</strong> both striatum<br />
and blood cells <strong>of</strong> adult rats treated with PERM for two months (Nasuti et al.,2003, 2008; Gabbianelli et al.,<br />
2002, 2004; paper submitted to Neuroscience).<br />
Based on assumptions described above we suggest the followed strategic issue: Pathogenic mechanisms,<br />
early diagnosis and prevention <strong>of</strong> Park<strong>in</strong>son’s disease (PD) follow<strong>in</strong>g pesticide <strong>in</strong>take.<br />
The <strong>research</strong> aims to capitalize on knowledge acquired <strong>in</strong> the field <strong>of</strong> pesticide effects on<br />
neurodegenerative disease start<strong>in</strong>g from developmental to old age. Studies <strong>of</strong> the role <strong>of</strong> epigenetic<br />
mechanisms are a <strong>research</strong> priority. The studies take <strong>in</strong>to account new approaches for early diagnosis <strong>of</strong> PD<br />
and strategies able to prevent the development <strong>of</strong> the neurodegeneration.<br />
Five major objectives to reach:<br />
1) Def<strong>in</strong>e the role <strong>of</strong> the early-life pesticide <strong>in</strong>take as a causative environmental agent for the development<br />
<strong>of</strong> PD;<br />
2) Def<strong>in</strong>e the correlation between pesticide and epigenetic mechanisms <strong>in</strong> regulat<strong>in</strong>g transcription <strong>of</strong><br />
genes;<br />
3) Identify the specific peripheral markers related to early diagnosis <strong>of</strong> PD;<br />
4) Evaluate the risk follow<strong>in</strong>g pesticide food <strong>in</strong>take and translate the outcome to human population;<br />
5) Prevention <strong>of</strong> PD onset and/or progression by three strategies: reduction <strong>of</strong> pesticide residues <strong>in</strong> the<br />
environment through bioremediation, screen<strong>in</strong>g <strong>of</strong> compounds for neuroprotective therapy and<br />
development <strong>of</strong> diagnostic kits to monitor peripheral markers related to the early PD diagnosis.
Country: Italy<br />
Contact person: Micaela Caserta (CNR)<br />
Date: January 28 th , 2010<br />
I) Strategic Issues<br />
Increase <strong>in</strong> longevity does not correlate with an <strong>in</strong>crease <strong>in</strong> disease-free life expectancy. The molecular<br />
mechanisms at the basis <strong>of</strong> this lack <strong>of</strong> correlation are still matter <strong>of</strong> debate and require <strong>research</strong><br />
<strong>in</strong>vestment.<br />
Cellular senescence has long been used as a cellular model for understand<strong>in</strong>g mechanisms underly<strong>in</strong>g the<br />
age<strong>in</strong>g process. Compell<strong>in</strong>g evidence obta<strong>in</strong>ed <strong>in</strong> recent years demonstrate that DNA damage is a common<br />
mediator for both replicative senescence, which is triggered by telomere shorten<strong>in</strong>g, and premature<br />
cellular senescence <strong>in</strong>duced by various stressors such as oncogenic stress and oxidative stress. Extensive<br />
observations suggest that DNA damage accumulates with age and that this may be due to an <strong>in</strong>crease <strong>in</strong><br />
production <strong>of</strong> reactive oxygen species (ROS) and a decl<strong>in</strong>e <strong>in</strong> DNA repair capacity. Genomic <strong>in</strong>stability is<br />
therefore thought to play a causative role <strong>in</strong> the age<strong>in</strong>g process.<br />
Our work<strong>in</strong>g hypothesis is based on the possibility that chronic exposure to environmental factors caus<strong>in</strong>g<br />
oxidative stress dur<strong>in</strong>g life, <strong>in</strong>clud<strong>in</strong>g pollutants but also noxious nutrients such as alcohol, could actually<br />
reduce the ability <strong>of</strong> relevant genes, implicated <strong>in</strong> the process <strong>of</strong> protect<strong>in</strong>g the cell from prote<strong>in</strong> and DNA<br />
damage, to respond properly. If, at the same time, <strong>in</strong>hibition <strong>of</strong> programmed cell death (apoptosis) occurs,<br />
cellular damage starts to accumulate.<br />
We will develop experimental strategies to analyse the mechanisms regulat<strong>in</strong>g the delicate balance<br />
between rescue and apoptotic pathways <strong>in</strong> two model systems, human monocytic cells and yeast S.<br />
cerevisiae, with the specific aim to def<strong>in</strong>e molecular targets <strong>of</strong> pharmacological <strong>in</strong>tervention.<br />
II) Priority areas<br />
Human cells<br />
The major goal is to understand the molecular mechanisms by which environmental <strong>in</strong>sults, caus<strong>in</strong>g<br />
oxidative stress <strong>in</strong> several cell types and tissues, alter the expression <strong>of</strong> genes <strong>in</strong>volved <strong>in</strong> counterbalanc<strong>in</strong>g<br />
the damag<strong>in</strong>g effects, like those cod<strong>in</strong>g for <strong>in</strong>ducible heat shock prote<strong>in</strong>s, detoxify<strong>in</strong>g enzymes, prote<strong>in</strong>s<br />
<strong>in</strong>volved <strong>in</strong> DNA repair processes as well as factors controll<strong>in</strong>g programmed cell death.<br />
One <strong>of</strong> the experimental systems that will be employed consist <strong>of</strong> human monocytic cell l<strong>in</strong>es, that will be<br />
subjected to various stress agents (mutagenic stress, ethanol, heat shock, and oxidative stress) either as<br />
s<strong>in</strong>gle treatment or as repeated cycles <strong>of</strong> treatment. The parameters that will be evaluated are:<br />
- mRNA level <strong>of</strong> selected genes (Hsp70, Hsp90, TRAP1, ERCC1, TDG, MCL1, DAD1);<br />
- chromat<strong>in</strong> remodell<strong>in</strong>g and histone modifications occurr<strong>in</strong>g at their promoters;
- <strong>in</strong>duction <strong>of</strong> apoptosis/necrosis;<br />
- epigenetic modifications and activity <strong>of</strong> PARP-1 and SIRT1, two key regulators <strong>of</strong> the balance between life<br />
and death <strong>of</strong> stressed cells.<br />
The subsequent step will be to evaluate some <strong>of</strong> these parameters (those requir<strong>in</strong>g a limited number <strong>of</strong><br />
cells) on primary blood monocytic cells.<br />
S. cerevisiae<br />
Saccharomyces cerevisiae has played an important role as a model system to understand the biochemistry<br />
and molecular biology <strong>of</strong> mammalian cells. The genetic tools available and the short life span have also<br />
made S. cerevisiae a powerful system to study ag<strong>in</strong>g. The yeast chronological life span (CLS) is a measure <strong>of</strong><br />
the survival <strong>of</strong> a non-divid<strong>in</strong>g population <strong>of</strong> cells, and thus can model ag<strong>in</strong>g <strong>of</strong> mammalian non-divid<strong>in</strong>g cells<br />
but also <strong>of</strong> higher eukaryotic organisms. The parallel description <strong>of</strong> the pro-ag<strong>in</strong>g role <strong>of</strong> homologs <strong>of</strong> Akt,<br />
S6 k<strong>in</strong>ase, adenylate cyclase, and Tor <strong>in</strong> yeast and <strong>in</strong> higher eukaryotes, suggests that f<strong>in</strong>d<strong>in</strong>gs <strong>in</strong> S.<br />
cerevisiae will be valuable to understand human ag<strong>in</strong>g and diseases. Moreover, the similarities between<br />
mitochondria and age-dependent mitochondrial damage <strong>in</strong> yeast and mammalian cells <strong>in</strong>dicate that S.<br />
cerevisiae is a valuable model to study mitochondrial dysfunction and diseases <strong>in</strong>volv<strong>in</strong>g this organelle.<br />
Here, we propose to study the relevance <strong>of</strong> epigenetic modifications due to the yeast sirtu<strong>in</strong>s (Sir2, HST1-4)<br />
at relevant ag<strong>in</strong>g loci such as telomeres and ribosomal DNA genes. Analyses will be carried out <strong>in</strong> condition<br />
<strong>of</strong> oxidative stress and at different times <strong>of</strong> chronological life. The results obta<strong>in</strong>ed will be then compared<br />
with parallel treatments <strong>in</strong> human cells were the sirtu<strong>in</strong> set (seven members <strong>in</strong> human) could act <strong>in</strong> a very<br />
similar way.<br />
III) Impact<br />
The comprehension <strong>of</strong> the basic mechanisms underly<strong>in</strong>g cell response to environmental cues, alongside<br />
with the <strong>in</strong>crease <strong>of</strong> knowledge on human biological variation <strong>in</strong> health and disease, will allow to identify<br />
specific pathways and genes whose activity needs to be strengthened or reduced by pharmacological<br />
<strong>in</strong>tervention.
Nome Valerio Carelli, MD, PhD<br />
Contatti<br />
Valerio.carelli@unibo.it<br />
Istituto/Dipartimento Department <strong>of</strong> Neurological Sciences, University <strong>of</strong> Bologna<br />
Proposta di ricerca<br />
MELANOPSIN RETINAL GANGLION CELLS AND CIRCADIAN RHYTHMS IN PARKINSON AND<br />
ALZHEIMER DISEASE<br />
Area di <strong>in</strong>teresse<br />
identificata<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
Biomarkers (chronobiology and neurodegeneration)<br />
MELANOPSIN RETINAL GANGLION CELLS AND CIRCADIAN RHYTHMS IN<br />
PARKINSON AND ALZHEIMER DISEASE<br />
none<br />
2 years<br />
Background:<br />
Circadian rhythm abnormalities have been described <strong>in</strong> ag<strong>in</strong>g and<br />
neurodegenerative disorders such as Park<strong>in</strong>son and Alzheimer disease<br />
(1,2). In particular, the “sundown<strong>in</strong>g” (i.e. the appearance <strong>of</strong><br />
psychomotor agitation dur<strong>in</strong>g the even<strong>in</strong>g-night) described <strong>in</strong> Alzheimer<br />
patients, has been related to an abnormal circadian rhythm <strong>of</strong> body<br />
temperature (3). In the last years many ret<strong>in</strong>al abnormalities (ma<strong>in</strong>ly<br />
contrast sensitivity but also colour vision defects and others) and the<br />
presence <strong>of</strong> optic neuropathy have been documented <strong>in</strong> both Alzheimer<br />
and Park<strong>in</strong>son disease (4-6). Moreover, <strong>in</strong> both diseases bright light
therapy has been reported to be effective (7,8). Nevertheless, no data are<br />
available on the possible relationship between visual dysfunction and<br />
circadian rhythm abnormalities <strong>in</strong> these disorders. Their possible l<strong>in</strong>k<br />
comes from the recent discovery <strong>of</strong> a new class <strong>of</strong> photoreceptors, the<br />
melanops<strong>in</strong> RGCs (mRGCs) (9). Melanops<strong>in</strong> ret<strong>in</strong>al ganglion cells (mRGCs)<br />
are a new class <strong>of</strong> photoreceptors play<strong>in</strong>g a crucial role <strong>in</strong> non-image<br />
form<strong>in</strong>g visual functions such as entra<strong>in</strong>ment <strong>of</strong> circadian rhythms to light<br />
and dark cycle, pupillary light reflex and regulation <strong>of</strong> synthesis <strong>of</strong><br />
melaton<strong>in</strong> dur<strong>in</strong>g the night (10). These cells represent about 1% <strong>of</strong> RGCs<br />
and orig<strong>in</strong>ate the ret<strong>in</strong>ohypothalamic tract (RHT) (11). Furthermore, In<br />
the ret<strong>in</strong>a <strong>of</strong> patients with Park<strong>in</strong>son disease a depletion <strong>of</strong> dopam<strong>in</strong>e<br />
levels has been documented. The amount <strong>of</strong> this reduction is strictly<br />
<strong>in</strong>fluenced by the time <strong>of</strong> last levodopa assumption (12). It is <strong>of</strong> note that<br />
dopam<strong>in</strong>ergic amacr<strong>in</strong>e cells <strong>in</strong>teract with mRGCs and regulate<br />
melanops<strong>in</strong> gene expression (13-15).<br />
In collaboration with Pr<strong>of</strong>essor Alfredo Sadun (Doheny Eye Institute, USC,<br />
Los Angeles, California) we recently demonstrated that mRGCs are<br />
partially spared <strong>in</strong> mitochondrial optic neuropathies, characterized by<br />
selective loss <strong>of</strong> RGCs (i.e. LHON and DOA). Our study also showed that<br />
mRGCs are lost after age eighty <strong>in</strong> normal subjects (16,17).<br />
Rationale:<br />
Based on the current knowledge we hypothesize that the abnormalities<br />
<strong>of</strong> circadian rhythms documented <strong>in</strong> Alzheimer and Park<strong>in</strong>son disease<br />
may be related to the presence <strong>of</strong> optic neuropathy and <strong>in</strong>volvement <strong>of</strong><br />
the mRGCs system.<br />
Aims:<br />
The aims <strong>of</strong> this project are:<br />
- to verify the presence <strong>of</strong> rest-activity rhythms by means <strong>of</strong> actigraphic<br />
record<strong>in</strong>gs <strong>in</strong> Park<strong>in</strong>son and Alzheimer patients<br />
- to verify the presence <strong>of</strong> optic neuropathy by measurement <strong>of</strong> nerve<br />
fiber layer thickness, as evaluated with Optical Coherence Tomography<br />
- to verify and quantify the presence <strong>of</strong> optic neuropathy and the<br />
<strong>in</strong>volvement <strong>of</strong> mRGCs <strong>in</strong> post-mortem ret<strong>in</strong>as <strong>of</strong> Alzheimer and<br />
Park<strong>in</strong>son patients<br />
- to verify the presence <strong>of</strong> dopam<strong>in</strong>e depletion <strong>in</strong> Park<strong>in</strong>son ret<strong>in</strong>a<br />
- to correlate the presence <strong>of</strong> optic neuropathy and circadian rhythm<br />
abnormalities <strong>in</strong> patients with Alzheimer and Park<strong>in</strong>son disease.<br />
References:<br />
1. Wu YH, Swaab DF. Disturbance and strategies for reactivation <strong>of</strong><br />
the circadian rhythm system <strong>in</strong> ag<strong>in</strong>g and Alzheimer's disease.<br />
Sleep Med. 2007 Sep;8(6):623-36.<br />
2. Willis GL. Park<strong>in</strong>son's disease as a neuroendocr<strong>in</strong>e disorder <strong>of</strong><br />
circadian function: dopam<strong>in</strong>e-melaton<strong>in</strong> imbalance and the visual<br />
system <strong>in</strong> the genesis and progression <strong>of</strong> the degenerative
process. Rev Neurosci. 2008;19(4-5):245-316.<br />
3. Volicer L, et al. Sundown<strong>in</strong>g and circadian rhythms <strong>in</strong> Alzheimer's<br />
disease. Am J Psychiatry. 2001 May;158(5):704-11.<br />
4. H<strong>in</strong>ton DR, et al. Optic-nerve degeneration <strong>in</strong> Alzheimer's<br />
disease. N Engl J Med. 1986 Aug 21;315(8):485-7.<br />
5. Sadun AA, Bassi CJ. Optic nerve damage <strong>in</strong> Alzheimer's disease.<br />
Ophthalmology. 1990 Jan;97(1):9-17.<br />
6. Archibald NK, et al. The ret<strong>in</strong>a <strong>in</strong> Park<strong>in</strong>son's disease. Bra<strong>in</strong>. 2009<br />
May;132(Pt 5):1128-45.<br />
7. Paus S, et al. Bright light therapy <strong>in</strong> Park<strong>in</strong>son's disease: a pilot<br />
study. Mov Disord. 2007; 22(10):1495-8.<br />
8. Dowl<strong>in</strong>g GA, et al. Effect <strong>of</strong> morn<strong>in</strong>g bright light treatment for<br />
rest-activity disruption <strong>in</strong> <strong>in</strong>stitutionalized patients with severe<br />
Alzheimer's disease. Int Psychogeriatr. 2005; 17(2):221-36.<br />
9. Berson DM, et al. Phototransduction by ret<strong>in</strong>al ganglion cells that<br />
set the circadian clock. Science. 2002 Feb 8;295(5557):1070-3.<br />
10. Hattar S, et al. Melanops<strong>in</strong>-conta<strong>in</strong><strong>in</strong>g ret<strong>in</strong>al ganglion cells:<br />
architecture, projections, and <strong>in</strong>tr<strong>in</strong>sic photosensitivity. Science.<br />
2002 Feb 8;295(5557):1065-70.<br />
11. Hannibal J, Fahrenkrug J. Neuronal <strong>in</strong>put pathways to the bra<strong>in</strong>'s<br />
biological clock and their functional significance. Adv Anat<br />
Embryol Cell Biol. 2006;182:1-71.<br />
12. Harnois C, Di Paolo T. Decreased Dopam<strong>in</strong>e <strong>in</strong> the Ret<strong>in</strong>as <strong>of</strong><br />
Patients with Park<strong>in</strong>son's Disease. Investigative Ophthalmology &<br />
Visual Science, 1990; 3 1(11)<br />
13. Vugler AA, et al. Dopam<strong>in</strong>e neurones form a discrete plexus with<br />
melanops<strong>in</strong> cells <strong>in</strong> normal and degenerat<strong>in</strong>g ret<strong>in</strong>a. Exp Neurol.<br />
2007 May; 205(1):26-35.<br />
14. Sakamoto K, et al. Dopam<strong>in</strong>e regulates melanops<strong>in</strong> mRNA<br />
expression <strong>in</strong> <strong>in</strong>tr<strong>in</strong>sically photosensitive ret<strong>in</strong>al ganglion cells. Eur<br />
J Neurosci. 2005 Dec;22(12):3129-36.<br />
15. Zhang DQ, et al. Wong KY, Sollars PJ, Berson DM, Pickard GE,<br />
McMahon DG. Intraret<strong>in</strong>al signal<strong>in</strong>g by ganglion cell<br />
photoreceptors to dopam<strong>in</strong>ergic amacr<strong>in</strong>e neurons. Proc Natl<br />
Acad Sci U S A. 2008 Sep 16;105(37):14181-6.<br />
16. La Morgia C et al. Melanops<strong>in</strong>-conta<strong>in</strong>t<strong>in</strong>g ret<strong>in</strong>al ganglion cells<br />
and circadian phototransduction are spared by<br />
Neurodegeneration <strong>in</strong> Mitochondrial Optic Neuropathies.<br />
Neurology March 17, 2009 Suppl 3 A183 (P04.075)<br />
17. La Morgia C et al. Light-<strong>in</strong>duced melaton<strong>in</strong> suppression <strong>in</strong><br />
Mitochondrial Optic Neuropathies. Arvo Annual Meet<strong>in</strong>g, May 3-7
2009 Fort Lauderdale, Florida N. 5663
Nome Pr<strong>of</strong>. Roberto Lucch<strong>in</strong>i<br />
Contatti Tel +39030 3996604 Fax +39030 3996080 Email: lucch<strong>in</strong>i@med.unibs.it<br />
Istituto/Dipartimento Dipartimento di Medic<strong>in</strong>a Sperimentale e Applicata, Sezione di Medic<strong>in</strong>a del<br />
Lavoro, Università di Brescia, P.le Spedali Civili 1, 25123 Brescia<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse<br />
identificata<br />
F<strong>in</strong>anziamenti ricevuti<br />
1. Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
2.Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
3.Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
Gene-metal <strong>in</strong>teraction as a determ<strong>in</strong>ant <strong>of</strong> neurodegenerative diseases<br />
PHIME - Public health impact <strong>of</strong> long-term, low-level mixed<br />
element exposure <strong>in</strong> susceptible population strata<br />
EU 6th Frame Program (www.phime.org)<br />
2006-2011<br />
PHIME: Gene-environment <strong>in</strong>teraction on manganese <strong>in</strong>duced<br />
park<strong>in</strong>sonism are studied <strong>in</strong> children and elderly resident <strong>in</strong> areas with<br />
environmental exposure to heavy metals<br />
Epigenomics Studies <strong>of</strong> Toxic Hazards <strong>in</strong> Environmental health Research<br />
CARIPLO Foundation, Italy<br />
2008-2011<br />
This is an <strong>in</strong>terdiscipl<strong>in</strong>ary program to conduct <strong>in</strong>-vitro and human<br />
<strong>in</strong>vestigations to evaluate the role <strong>of</strong> DNA methylation and histone<br />
modifications <strong>in</strong> mediat<strong>in</strong>g the health effects <strong>of</strong> metals and other<br />
environmental exposures<br />
PROFILO BIOLOGICO E GENETICO DELLA DISFUNZIONE DEI METALLI<br />
NELLA MALATTIA DI ALZHEIMER E NEL ‘MILD COGNITIVE IMPAIRMENT’<br />
M<strong>in</strong>istero del Lavoro della Salute e delle Politiche Sociali<br />
2009-2011<br />
Several cross-sectional as well as cohort studies corroborate the concept<br />
<strong>of</strong> metal implication <strong>in</strong> Alzheimer’s disease (AD), <strong>in</strong>clud<strong>in</strong>g cl<strong>in</strong>ical<br />
observations suggest<strong>in</strong>g that higher-than normal levels <strong>of</strong> copper (Squitti<br />
et al, Neurol 2002) and <strong>in</strong> particular ‘free’ copper – the quantity <strong>of</strong> serum<br />
copper which is not bound to ceruloplasm<strong>in</strong> (Squitti et al, Neurol 2005,<br />
2006) – can dist<strong>in</strong>guish AD from healthy controls. Here we tested the<br />
hypothesis that this is the case also for the classification <strong>of</strong> healthy elderly<br />
subjects vs. Mild Cognitive Impairment (MCI) which represents an<br />
<strong>in</strong>termediate cognitive state between ‘normalcy’ and full dementia.
ABSTRACT<br />
Exposure to heavy metals can <strong>in</strong>duce neurodegenerative effects <strong>in</strong> humans (Zatta et al., 2003). Various<br />
metals like alum<strong>in</strong>ium, manganese, iron, copper, z<strong>in</strong>c are likely to play important roles <strong>in</strong> the pathogenesis<br />
<strong>of</strong> neurodegenerative illnesses such as Alzheimer’s Dementia (AD) and Park<strong>in</strong>son’s Disease (PD). In<br />
particular for AD - the most common form <strong>of</strong> dementia <strong>in</strong> the elderly -a consensus has been recently<br />
established <strong>in</strong> the Metal Hypothesis <strong>of</strong> AD (Bush and Tanzi 2008). This hypothesis suggests that the<br />
<strong>in</strong>teraction <strong>of</strong> Abeta – the major component <strong>of</strong> the senile plaques - with specific metals - iron, z<strong>in</strong>c and<br />
especially Cu - can drive Abeta pathogenicity and AD development and progression. Numerous cl<strong>in</strong>ical<br />
studies, <strong>in</strong>clud<strong>in</strong>g some from our group (Squitti et al, 2002, 2006, 2009) support this hypothesis. In<br />
particular, we have identified <strong>in</strong> AD patients a serum-level <strong>in</strong>crease <strong>in</strong> the Cu quantity that does not b<strong>in</strong>d to<br />
ceruloplasm<strong>in</strong> (free Cu) (Squitti et al, 2005), which correlates with the typical deficits, cerebrosp<strong>in</strong>al<br />
markers (Squitti et al, 2006) and with a worse prognosis <strong>of</strong> the disease (Squitti et 2009a). The <strong>in</strong>teraction<br />
between environmental exposure with genetic susceptibility is suspected as an important determ<strong>in</strong>ant <strong>of</strong><br />
these chronic diseases as well (Wright and Baccarelli 2010; Baccarelli e Bollati, 2009). In fact, if on one hand<br />
metabolic dysfunction could have an effect on metal disbalance – especially at the liver lever, be<strong>in</strong>g the<br />
liver the controll<strong>in</strong>g organ <strong>of</strong> metal homeostasis, on the other hand epigenetic factors have been<br />
highlighted <strong>in</strong> conjunction with oxidative stress mechanism to be triggered by exposure to neurotoxicants<br />
like heavy metals (Zawia et al., 2009). In particular, the effects <strong>of</strong> metal exposures <strong>in</strong> early life and<br />
throughout the developmental stages could account for cl<strong>in</strong>ical manifestations <strong>in</strong> older age. Our group has<br />
produced sem<strong>in</strong>al contributions show<strong>in</strong>g that exposure to metals (Wright and Baccarelli 2010; Tarant<strong>in</strong>i<br />
and Baccarelli 2009) modifies global and gene-specific methylation states and that these changes can be<br />
detected <strong>in</strong> blood DNA. Epidemiological assessment needs accurate reconstruction <strong>of</strong> long-term and<br />
lifetime exposure, possibly with exposure biomarkers able to reflect long-term cumulative mechanism <strong>of</strong><br />
neurotoxicity. Our group has developed various <strong>research</strong> projects <strong>in</strong> these areas, cover<strong>in</strong>g different aspects<br />
<strong>of</strong> metal exposure as determ<strong>in</strong>ant <strong>of</strong> AD (Papaleo et al., 2004) and PD (Lucch<strong>in</strong>i et al., 2007; Squitti et al.,<br />
2009b). The understand<strong>in</strong>g <strong>of</strong> exposure related determ<strong>in</strong>ants have important implication <strong>in</strong> terms <strong>of</strong><br />
possible reduction <strong>of</strong> the epidemiological impacts <strong>of</strong> neurodegenerative diseases, through preventive<br />
<strong>in</strong>tervention. The l<strong>in</strong>e <strong>of</strong> <strong>research</strong> we are <strong>in</strong>terested <strong>in</strong> focuses on an <strong>in</strong>tegration <strong>of</strong> all the aspects –<br />
exposure-related as well as the metabolic ones - <strong>of</strong> the metal implication <strong>in</strong> neuro-degenerative disorders.<br />
In particular, we will explore the genetic and epigenetic <strong>in</strong>fluence on AD and PD patients exposed to heavy<br />
metals <strong>in</strong> the highly <strong>in</strong>dustrialized prov<strong>in</strong>ce <strong>of</strong> Brescia, and the hypothesis that gene controll<strong>in</strong>g metal<br />
metabolism – such as the Wilson’s disease ATP7B gene - which controls the free copper levels <strong>in</strong> the body,<br />
the hemochromatosis HFE gene and Transferr<strong>in</strong> gene - <strong>in</strong>volved <strong>in</strong> the regulation <strong>of</strong> body iron - arbour<br />
susceptibility loci for late-onset AD as well . Moreover, to provide pro<strong>of</strong>-<strong>of</strong>-concept that a decopper<strong>in</strong>g<br />
approach has a beneficial effect on AD progression, we are currently start<strong>in</strong>g a large randomized controlled<br />
cl<strong>in</strong>ical trial based on the concept that metal complex<strong>in</strong>g or ligand agents properly tune the redistribution<br />
<strong>of</strong> metals <strong>in</strong> the body. The <strong>in</strong>fluence <strong>of</strong> genes like park<strong>in</strong> and PARK9 will also be assessed <strong>in</strong> relation to<br />
exposure to neurotoxic metals like manganese. Assessment <strong>of</strong> cumulative exposure (S<strong>in</strong>ha and Mark, 2005)<br />
to metals will be based on geospatial approach and will be applied to AD and PD patients and age-sex<br />
matched controls from geographical areas with different environmental exposures to heavy metals.
REFERENCES<br />
Baccarelli A, Bollati V. Epigenetics and Environmental Chemicals. Curr Op<strong>in</strong> Pediatr 2009; 21: 243-51.<br />
Lucch<strong>in</strong>i R, Alb<strong>in</strong>i E, Benedetti L, Borghesi S, Coccaglio R, Malara E, Parr<strong>in</strong>ello G, Garatt<strong>in</strong>i S, Resola S, Alessio<br />
L, High Prevalence Of Park<strong>in</strong>sonian Disorders Associated To Manganese Exposure In The Vic<strong>in</strong>ities Of<br />
Ferroalloy Industries. Am J Ind Med 2007; 50: 11: 788-800<br />
Papaleo B, Alessio, Apostoli P, Battista G, Benedetti F, Lucch<strong>in</strong>i R, Pasqualetti P. Alzheimer disease: study <strong>of</strong><br />
occupational risk factors [<strong>in</strong> <strong>Italian</strong>]. G Ital Med Lav Ergon 2004;26(4):310-312<br />
Bush AI, Tanzi RE. Therapeutics for Alzheimer's disease based on the metal hypothesis. Neurotherapeutics.<br />
2008 Jul;5(3):421-32. Review<br />
Squitti R, Lupoi D, Pasqualetti P, Dal Forno G, Vernieri F, Chiovenda P, Rossi L, Cortesi M, Cassetta E, Ross<strong>in</strong>i<br />
PM. Elevation <strong>of</strong> serum copper levels <strong>in</strong> Alzheimer's disease. Neurology. 2002 Oct 22;59(8):1153-61..<br />
Squitti R, Pasqualetti P, Dal Forno G, M<strong>of</strong>fa F, Cassetta E, Lupoi D, Vernieri F, Rossi L, Baldass<strong>in</strong>i M, Ross<strong>in</strong>i<br />
PM. Excess <strong>of</strong> serum copper not related to ceruloplasm<strong>in</strong> <strong>in</strong> Alzheimer disease. Neurology. 2005 Mar<br />
22;64(6):1040-6.<br />
Squitti R, Barbati G, Rossi L, Ventriglia M, Dal Forno G, Cesaretti S, M<strong>of</strong>fa F, Caridi I, Cassetta E, Pasqualetti<br />
P, Calabrese L, Lupoi D, Ross<strong>in</strong>i PM. Excess <strong>of</strong> nonceruloplasm<strong>in</strong> serum copper <strong>in</strong> AD correlates with<br />
MMSE, CSF [beta]-amyloid, and h-tau. Neurology. 2006 Jul 11;67(1):76-82.<br />
Squitti R, Bressi F, Pasqualetti P, Bonom<strong>in</strong>i C, Ghidoni R, B<strong>in</strong>etti G, Cassetta E, M<strong>of</strong>fa F, Ventriglia M, Vernieri<br />
F, Ross<strong>in</strong>i PM. Longitud<strong>in</strong>al prognostic value <strong>of</strong> serum "free" copper <strong>in</strong> patients with Alzheimer disease.<br />
Neurology. 2009a 6;72(1):50-5.<br />
Squitti R, Gorgone G, Panetta V, Lucch<strong>in</strong>i R, Bucossi S, Alb<strong>in</strong>i E, Alessio L, Alberici A, Melgari JM, Benussi L,<br />
B<strong>in</strong>etti G, Ross<strong>in</strong>i PM, Draicchio F. Implications <strong>of</strong> metal exposure and liver function <strong>in</strong> Park<strong>in</strong>sonian<br />
patients resident <strong>in</strong> the vic<strong>in</strong>ities <strong>of</strong> ferroalloy plants. J Neural Transm. 2009b Oct;116(10):1281-7<br />
Tarant<strong>in</strong>i L, Bonz<strong>in</strong>i M, Apostoli P, Pegoraro V, Bollati V, Mar<strong>in</strong>elli B, Cantone L, Rizzo G, Hou LF, Schwartz J,<br />
Bertazzi PA, Baccarelli A. Effects <strong>of</strong> Particulate Matter on Genomic DNA Methylation Content and iNOS<br />
Promoter Methylation. Environ Health Perspect 2009; 117: 217-22.<br />
Wright RO, Schwartz J, Wright RJ, Bollati V, Tarant<strong>in</strong>i L, Park SK, Hu H, Sparrow D, Vokonas P, Baccarelli A.<br />
Biomarkers <strong>of</strong> Lead Exposure and DNA Methylation with<strong>in</strong> Retrotransposons. Environ Health Perspect,<br />
onl<strong>in</strong>e ahead <strong>of</strong> press<br />
Zatta P, Lucch<strong>in</strong>i R, van Rensburg SJ, Taylor A.The role <strong>of</strong> metals <strong>in</strong> neurodegenerative processes:<br />
alum<strong>in</strong>um, manganese, and z<strong>in</strong>c. Bra<strong>in</strong> Res Bull. 2003 Nov 15;62(1):15-28.<br />
Zawia NH, Lahiri DK, Cardozo-Pelaez F. Epigenetics, oxidative stress, and Alzheimer disease. Free Radic Biol<br />
Med. 2009 May 1;46(9):1241-9. Epub 2009 Feb 23.
Nome Stefano Mattioli<br />
Contatti<br />
Occupational Medic<strong>in</strong>e,<br />
S.Orsola-Malpighi University Hospital<br />
via Pelagio Palagi 9,<br />
I-40138 Bologna, Italy.<br />
Tel: +39-051 636 2761<br />
Fax: +39-051 636 2609<br />
E-mail: s.mattioli@unibo.it<br />
Istituto/Dipartimento Section <strong>of</strong> Occupational Medic<strong>in</strong>e, Department <strong>of</strong> Internal<br />
Medic<strong>in</strong>e, Geriatrics and Nephrology, University <strong>of</strong> Bologna,<br />
Italy<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse identificata<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Us<strong>in</strong>g prevention to reduce the burden <strong>of</strong> Alzheimer’s<br />
disease (and other age<strong>in</strong>g diseases)<br />
Occupational exposure to Valsalva manoeuvre and risk <strong>of</strong> Alzheimer<br />
disease<br />
None
Durata progetto<br />
Abstract del progetto<br />
2-3 Years (6 months for Study design and questionnaire preparation;<br />
at least 1 year for data collection; 6 month for data clean<strong>in</strong>g, quality<br />
controls and statistical analysis; 6 month for writ<strong>in</strong>g the manuscript<br />
and <strong>in</strong>ternal revision process)<br />
Introduction<br />
Chronic <strong>in</strong>creased <strong>in</strong>tracranial pressure or exposure to repetitive<br />
<strong>in</strong>termittent <strong>in</strong>tracranial pressure elevations might contribute to<br />
Alzheimer’s disease (AD) via damage to the choroid plexus result<strong>in</strong>g<br />
from cumulative effects <strong>of</strong> repetitive <strong>in</strong>termittent <strong>in</strong>tracranial<br />
pressure elevations, and lead<strong>in</strong>g to a reduction <strong>in</strong> cerebrosp<strong>in</strong>al<br />
fluid (CSF) production, and hence to dim<strong>in</strong>ished CSF clearance <strong>of</strong><br />
neurotox<strong>in</strong>s such as β-amyloid [Wostyn, Can chronic <strong>in</strong>creased<br />
<strong>in</strong>tracranial pressure or exposure to repetitive <strong>in</strong>termittent<br />
<strong>in</strong>tracranial pressure elevations raise your risk for Alzheimer’s<br />
disease? Med Hypotheses 2004;62:925–30, 2004].<br />
Weightlifters, glassblowers and w<strong>in</strong>d <strong>in</strong>strument musicians can<br />
generate very high <strong>in</strong>tracranial pressures due to repeated Valsalva<br />
manoeuvres (elevated subglottic pressures), which impair venous<br />
return from the head [Greenfield et al., Transient changes <strong>in</strong><br />
cerebral vascular resistance dur<strong>in</strong>g the Valsalva maneuver <strong>in</strong> man.<br />
Stroke 1984;15:76–9]. Here<strong>in</strong>, occupational exposure to Valsalva<br />
manoeuvres might be a risk factor for Alzheimer disease.<br />
Our aim will be the conduction <strong>of</strong> an etiological study to test the<br />
hypothesis <strong>of</strong> causal l<strong>in</strong>k between occupational history <strong>of</strong> frequent<br />
Valsalva manoeuvres and the onset <strong>of</strong> Alzheimer diseases <strong>in</strong> later<br />
ages.<br />
Methods<br />
We th<strong>in</strong>k that a case-control study design would be feasible to our<br />
purpose. Firstly, our hypothesis implies a long latency between<br />
exposure and disease onset. Moreover, regular lift<strong>in</strong>g is a common<br />
task among manual workers. In a previous study conducted <strong>in</strong><br />
Bologna, we estimated a lifetime prevalence <strong>of</strong> manual lift<strong>in</strong>g works<br />
around 32% [Mattioli et al., Physical exertion (lift<strong>in</strong>g) and ret<strong>in</strong>al<br />
detachment among people with myopia. Epidemiology. 2008<br />
Nov;19(6):868-71].<br />
Consider<strong>in</strong>g the frequency <strong>of</strong> Alzheimer disease (10,000 new cases<br />
registered <strong>in</strong> Emilia-Romagna every year) we can recruit only<br />
<strong>in</strong>cident cases, <strong>in</strong> order to m<strong>in</strong>imize recall bias.<br />
Selection <strong>of</strong> cases will be conducted <strong>in</strong> cooperation with<br />
Neurological Cl<strong>in</strong>ic <strong>of</strong> Bologna; collaboration <strong>of</strong> relatives will be
asked <strong>in</strong> order to properly collect <strong>in</strong>formation.<br />
Selection <strong>of</strong> controls (2 for each case) will be based on random<br />
sampl<strong>in</strong>g from the national health service registries.<br />
For data collection, we will use a standardized questionnaire<br />
designed for assessment <strong>of</strong> a series <strong>of</strong> potential occupational and<br />
non-occupational risk factors, based on those proposed <strong>in</strong> the<br />
literature. In particular, weight lift<strong>in</strong>g will be assessed both by<br />
analysis <strong>of</strong> occupational history and by ask<strong>in</strong>g specific questions.<br />
Multivariate logistic regression analyses will be conducted to study<br />
the relationship between past occupational exposure to Valsalva<br />
manoeuvres and Alzheimer disease.<br />
Conclusions<br />
Chronic repetitive Valsalva manoeuvres have been proposed has a<br />
possible cause <strong>of</strong> Alzheimer disease. Weight lift<strong>in</strong>g, a very common<br />
task for manual workers, might play an important role <strong>in</strong> Alzheimer<br />
diseases aetiology. If confirmed, this hypothesis could have<br />
important impact on the global burden <strong>of</strong> the disease. Indeed these<br />
f<strong>in</strong>d<strong>in</strong>gs could have significant implications <strong>in</strong> prevention, with<br />
important consequences on health and socio-economic fields.<br />
Epidemiological studies are needed to test this hypothesis and to<br />
asses other possible etiologic factors that could be implicated <strong>in</strong> the<br />
pathologic mechanism [Wostyn, 2004].
Nome Giuseppe Mele (Pr<strong>of</strong>essore Aggregato di Chimica)<br />
Contatti<br />
giuseppe.mele@unisalento.it<br />
Studio: 0832-297281<br />
Cellulare: 333-9593228<br />
Istituto/Dipartimento Dipartimento di Ingegneria dell’Innovazione-Università del Salento<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse identificata<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto (1)<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto (1)<br />
Abstract del progetto (1)<br />
Costruzione di un “Alzheimer Web-GIS” che consenta di georeferenziare<br />
casi di morbo di Alzheimer su aree campione<br />
associando ad ogni caso <strong>in</strong> esame una “base di dati” contenente<br />
parametri geografici e ambientali allo scopo di capire “se possibile” le<br />
correlazioni tra i parametri (geografici, scientifici, medici, sociali) ed i<br />
casi oggetto di studio.<br />
Nella costruzione del “Web_GIS”, sebbene <strong>in</strong> ambiti diversi, si potrebbe<br />
trasferire il know-how acquisito nei due progetti di seguito riportati di cui<br />
il proponente è stato Responsabile Scientifico.<br />
Acronimo ECODO-NET<br />
"Development <strong>of</strong> a model Web based virtual observatory <strong>of</strong> Acherontas,<br />
Kalamas and Torre Guaceto ecosystems and its application as a mobile<br />
exhibit and permanent environmental kiosk towards public awareness<br />
and susta<strong>in</strong>able development <strong>of</strong> coastal ecosystems (EcoDo-net)"<br />
focuses on the improvement <strong>of</strong> the management, the protection and the<br />
susta<strong>in</strong>able development <strong>of</strong> the Greek and <strong>Italian</strong> coastal ecosystems <strong>in</strong><br />
the border area (Acherontas, Kalamas, their <strong>in</strong>termediary coastal zone<br />
and -Torre Guaceto) through the observation <strong>of</strong> the ecosystems' quality<br />
and the <strong>in</strong>crease <strong>of</strong> public awareness about environmental issues.<br />
Programma Interreg IIIA Italia-Grecia 2000-2006<br />
Asse III. Ambiente e Patrimonio Culturale<br />
Misura 3.1 Miglioramento della gestione degli ecosistemi<br />
FESR-Stato-Regione Puglia<br />
2 anni gennaio /2007-Dicembre/2008<br />
The program "Development <strong>of</strong> a model Web based virtual observatory <strong>of</strong><br />
Acherontas, Kalamas and Torre Guaceto ecosystems and its application as<br />
a mobile exhibit and permanent environmental kiosk towards public<br />
awareness and susta<strong>in</strong>able development <strong>of</strong> coastal ecosystems (EcoDonet)"<br />
focuses on the improvement <strong>of</strong> the management, the protection<br />
and the susta<strong>in</strong>able development <strong>of</strong> the Greek and <strong>Italian</strong> coastal<br />
ecosystems <strong>in</strong> the border area (Acherontas, Kalamas, their <strong>in</strong>termediary<br />
coastal zone and -Torre Guaceto) through the observation <strong>of</strong> the<br />
ecosystems' quality and the <strong>in</strong>crease <strong>of</strong> public awareness about<br />
environmental issues.
Titolo progetto (2)<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto(2)<br />
Abstract del progetto (2)<br />
L<strong>in</strong>ee di <strong>in</strong>tervento per la valorizzazione delle colture agricole locali della<br />
Valle della Cupa<br />
-Web GIS (Geographic Information System) as support for susta<strong>in</strong>able<br />
development local economy <strong>in</strong> the fields <strong>of</strong> agro-<strong>in</strong>dustry and f<strong>in</strong>e<br />
chemicals<br />
Consorzio Universitario Interprov<strong>in</strong>ciale Salent<strong>in</strong>o<br />
Consorzio di Comuni della Valle della Cupa<br />
1 anno 2006<br />
There is nowadays an <strong>in</strong>creas<strong>in</strong>g <strong>in</strong>terest <strong>in</strong> the development <strong>of</strong> natural<br />
products and new f<strong>in</strong>e chemicals based on renewable organic materials<br />
us<strong>in</strong>g susta<strong>in</strong>able processes. At the same time <strong>in</strong>novative developments<br />
associated to ma<strong>in</strong> local productions (e.g. olive oil and w<strong>in</strong>e <strong>in</strong>dustries) as<br />
well as to the extraction f<strong>in</strong>e chemicals from less important local cultivar<br />
(e.g. mulberry, black-berry, bilberry etc.), are <strong>of</strong> topical importance<br />
especially <strong>in</strong> view <strong>of</strong> a susta<strong>in</strong>able “green chemistry”.<br />
Emerg<strong>in</strong>g technologies for simulat<strong>in</strong>g, controll<strong>in</strong>g, and optimiz<strong>in</strong>g<br />
complex systems will be considered, cross<strong>in</strong>g a long list <strong>of</strong> discipl<strong>in</strong>es such<br />
as, botanical, chemical, computational, material science and process<br />
simulation.<br />
In this context we report our studies concern<strong>in</strong>g a planned sampl<strong>in</strong>g <strong>of</strong><br />
local agri-food and non-food species (traditional and/or m<strong>in</strong>or cultivar),<br />
which could be <strong>in</strong>terest<strong>in</strong>g for this purpose. With this sampl<strong>in</strong>g we are<br />
able to trace the real distribution <strong>of</strong> local cultivations and to map these<br />
on a Geographic Information System (G.I.S.). Then, each sample will be<br />
listed depend<strong>in</strong>g on its own biological properties and physical condition<br />
<strong>of</strong> the selected cultivar.
Nome Pr<strong>of</strong>. Calogero Caruso MED04<br />
Contatti<br />
Immunopatology (precl<strong>in</strong>ical): Calogero Caruso, email:<br />
immunopatologia@unipa.it<br />
Neurology: Roberto Monastero, email: roberto.monastero@ki.se<br />
Oral Medic<strong>in</strong>e: Giusepp<strong>in</strong>a Campisi, email: campisi@odonto.unipa.it<br />
Istituto/Dipartimento Department <strong>of</strong> Pathobiology and Medical and Forensic Biotechnologies<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse identificata<br />
Experimental (precl<strong>in</strong>ical) <strong>research</strong><br />
The precl<strong>in</strong>ical group (Immunopathology Unit) is evaluat<strong>in</strong>g the<br />
role <strong>of</strong> <strong>in</strong>flammag<strong>in</strong>g <strong>in</strong> the expression/progression <strong>of</strong> the disease. So far<br />
the alterations <strong>of</strong> the <strong>in</strong>flammatory response and the pro-<strong>in</strong>flammatory<br />
pr<strong>of</strong>ile <strong>of</strong> aged people have been studied as risk factors for AD<br />
development. This aspect has to be further characterized <strong>in</strong> terms <strong>of</strong> the<br />
comparison <strong>of</strong> the genes and prote<strong>in</strong>s <strong>in</strong>volved <strong>in</strong> determ<strong>in</strong><strong>in</strong>g the pro<strong>in</strong>flammatory<br />
pr<strong>of</strong>ile <strong>in</strong> healthy old and very old people and <strong>in</strong> demented<br />
(both Alzheimer and non Alzheimer). On the other hand, persistent<br />
peripheral multibacteria <strong>in</strong>fection such as periodontitis (PD), associated<br />
with gram-anaerobic bacteria capable <strong>of</strong> exhibit<strong>in</strong>g localized and systemic<br />
<strong>in</strong>fections <strong>in</strong> the host, has been proposed as possible aggravat<strong>in</strong>g c<strong>of</strong>actor<br />
<strong>in</strong> subjects with vascular disease. In PD the balance between bacteria and<br />
host response is altered, result<strong>in</strong>g <strong>in</strong> a production <strong>of</strong> high levels <strong>of</strong> pro<strong>in</strong>flammatory<br />
mediators and low levels <strong>of</strong> anti-<strong>in</strong>flammatory ones. Data<br />
regard<strong>in</strong>g the PD association with neurodegenerative disorders are<br />
lack<strong>in</strong>g; however, it seems plausible that, dur<strong>in</strong>g PD, cytok<strong>in</strong>es <strong>in</strong>crease <strong>in</strong><br />
AD bra<strong>in</strong> due to stimulation <strong>of</strong> trigem<strong>in</strong>al nerve fibres, or directly from<br />
bacterial products. So, the Immunopathology group <strong>in</strong> association with<br />
the Oral Medic<strong>in</strong>e group is go<strong>in</strong>g to ga<strong>in</strong> <strong>in</strong>sight <strong>in</strong>to this relationship,<br />
us<strong>in</strong>g biological samples collected from the Neurological group.<br />
Many studies have reported different alterations <strong>of</strong> the immune<br />
system <strong>in</strong> AD, and the <strong>in</strong>volvement <strong>of</strong> the acquired branches <strong>of</strong> the<br />
immune system. To <strong>in</strong>vestigate the systemic signs <strong>of</strong> immune responses<br />
<strong>in</strong> AD, the Immunopathology group is also analyz<strong>in</strong>g the expression <strong>of</strong><br />
activation markers on peripheral blood mononuclear cells from AD<br />
patients and age-matched healthy controls activated <strong>in</strong> vitro by<br />
recomb<strong>in</strong>ant amyloid peptide (rAβ42) and their cytok<strong>in</strong>e production. This<br />
k<strong>in</strong>d <strong>of</strong> study is also useful to obta<strong>in</strong> biomarkers <strong>of</strong> AD for monitor<strong>in</strong>g the<br />
effectiveness <strong>of</strong> therapeutic <strong>in</strong>terventions.<br />
Cl<strong>in</strong>ical <strong>research</strong><br />
Risk factors for Mild Cognitive Impairment (MCI) - which may precede<br />
the cl<strong>in</strong>ical detection <strong>of</strong> AD and dementia - and predictors for the<br />
conversion from MCI to dementia are currently evaluated by the<br />
Neurological group. For this purpose, hospital-based data and crosssectional<br />
as well as prospective data from a population-based cohort are
used. In particular, modifiable (non-genetic) and non-modifiable (genetic)<br />
risk factors are under evaluation.<br />
• Concern<strong>in</strong>g modifiable risk factors, three etiologically-driven<br />
hypotheses are currently carried out:<br />
1. The role <strong>of</strong> modifiable vascular risk factors (eg, diabetes,<br />
hypertension, dyslipidemia, obesity), alone or clustered, <strong>in</strong> the<br />
concept <strong>of</strong> metabolic syndrome are under <strong>in</strong>vestigation;<br />
2. The role <strong>of</strong> behavioural symptoms, particularly depression, <strong>in</strong><br />
determ<strong>in</strong><strong>in</strong>g the risk <strong>of</strong> MCI and its progression to dementia/AD<br />
are under evaluation;<br />
3. The effects <strong>of</strong> oxidative stress and vitam<strong>in</strong> E on the development<br />
<strong>of</strong> MCI and dementia/AD, and their effect <strong>in</strong> the progression from<br />
MCI to dementia/AD are <strong>in</strong> assessment.<br />
• Concern<strong>in</strong>g non-modifiable risk factors, we are go<strong>in</strong>g to evaluate<br />
the role <strong>of</strong> recently proposed and novel putative genes <strong>in</strong>volved<br />
<strong>in</strong> AD. We hypothesize to <strong>in</strong>clude a large sample sample <strong>of</strong> AD<br />
and control subjects (case:control <strong>of</strong> 1,000:1,000); accord<strong>in</strong>gly,<br />
this study would benefit from a valid statistical power <strong>in</strong><br />
detect<strong>in</strong>g novel potential genetic markers for AD. These genes<br />
will be evaluated alone, <strong>in</strong> clusters and <strong>in</strong> conjunction with the<br />
APOE4 allele. This study will be performed <strong>in</strong> association with<br />
Immunopathology Unit. Drugs currently <strong>in</strong> use to treat AD are<br />
effective only <strong>in</strong> 20% <strong>of</strong> patients; their therapeutic effect is<br />
predom<strong>in</strong>antly under genetic control. Thus, these data would<br />
encourage new <strong>research</strong> <strong>in</strong> pharmacogenomics.<br />
F<strong>in</strong>anziamenti ricevuti Pr<strong>in</strong>cipal Investigator: Dr. Roberto Monastero ; Amount <strong>of</strong> fund: 590,000 euros<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
Epidemiology and risk factors for Mild Cognitive Impairment, Alzheimer's<br />
disease and dementia. The Zabut Ag<strong>in</strong>g Project: 5-year follow-up study on<br />
a rural Sicilian population<br />
M<strong>in</strong>istero della Salute, Italia<br />
3 years<br />
We would extend recent <strong>research</strong> on risk factors for Mild Cognitive<br />
Impairment (MCI) and Alzheimer's disease (AD) and the progression <strong>of</strong><br />
MCI to dementia <strong>in</strong> the elderly with a special focus regard<strong>in</strong>g modifiable<br />
(non-genetic) and non-modifiable (genetic) risk factors. Basel<strong>in</strong>e (n=1930<br />
subjects) and 5-year population-based data (we are expect<strong>in</strong>g to enrol<br />
approximately 1500 subjects) will, therefore, be used. Firstly, the role <strong>of</strong><br />
vascular, modifiable vascular risk factors, alone or clustered <strong>in</strong> the<br />
concept <strong>of</strong> metabolic syndrome would be <strong>in</strong>vestigated. Secondly, the role<br />
<strong>of</strong> behavioural symptoms, particularly depression, <strong>in</strong> determ<strong>in</strong><strong>in</strong>g the risk<br />
<strong>of</strong> MCI and its progression to dementia/AD would be evaluated. Thirdly,<br />
the effects <strong>of</strong> oxidative stress and vitam<strong>in</strong> E on the development <strong>of</strong> MCI<br />
and dementia/AD, and their effect <strong>in</strong> the progression from MCI to<br />
dementia/AD would be assessed. Lastly, this project would evaluate the<br />
role <strong>of</strong> recently proposed and novel putative genes <strong>in</strong>volved <strong>in</strong> AD.
Roberto Monastero, MD, PhD<br />
Lab <strong>of</strong> Epidemiology and Psychology <strong>of</strong> Ag<strong>in</strong>g and Dementia<br />
Dept <strong>of</strong> Cl<strong>in</strong>ical Neuroscience<br />
University <strong>of</strong> Palermo<br />
Via La Loggia 1<br />
90129 - Palermo, Italy<br />
Tel. +39-091-6555185<br />
Fax. +39-091-6555113<br />
email. roberto.monastero@ki.se<br />
roberto.monastero@unipa.it<br />
Type: Progetto Giovani Ricercatori M<strong>in</strong>istero Salute, 2007<br />
Title: Epidemiology and risk factors for Mild Cognitive Impairment, Alzheimer's disease and dementia. The<br />
Zabut Ag<strong>in</strong>g Project: 5-year follow-up study on a rural Sicilian population<br />
Pr<strong>in</strong>cipal Investigator: Dr. Roberto Monastero<br />
Amount <strong>of</strong> fund: 590,000 euros<br />
Lenght: 3-year project<br />
Abstract<br />
We would extend recent <strong>research</strong> on risk factors for Mild Cognitive Impairment (MCI) and Alzheimer's<br />
disease (AD) and the progression <strong>of</strong> MCI to dementia <strong>in</strong> the elderly with a special focus regard<strong>in</strong>g<br />
modifiable (non-genetic) and non-modifiable (genetic) risk factors. Basel<strong>in</strong>e (n=1930 subjects) and 5-year<br />
population-based data (we are expect<strong>in</strong>g to enrol approximately 1500 subjects) will, therefore, be used.<br />
Firstly, the role <strong>of</strong> modifiable vascular risk factors, alone or clustered, <strong>in</strong> the concept <strong>of</strong> metabolic syndrome<br />
would be <strong>in</strong>vestigated. Secondly, the role <strong>of</strong> behavioural symptoms, particularly depression, <strong>in</strong> determ<strong>in</strong><strong>in</strong>g<br />
the risk <strong>of</strong> MCI and its progression to dementia/AD would be evaluated. Thirdly, the effects <strong>of</strong> oxidative<br />
stress and vitam<strong>in</strong> E on the development <strong>of</strong> MCI and dementia/AD, and their effect <strong>in</strong> the progression from<br />
MCI to dementia/AD would be assessed. Lastly, this project would evaluate the role <strong>of</strong> recently proposed<br />
and novel putative genes <strong>in</strong>volved <strong>in</strong> AD. Due to the large, hypothesized sample <strong>of</strong> AD and control subjects<br />
(about 1,000 for each group), this study would benefit from a valid statistical power <strong>in</strong> detect<strong>in</strong>g novel<br />
potential genetic markers for AD. These genes would be evaluated alone, <strong>in</strong> clusters and <strong>in</strong> conjunction<br />
with the APOE4 allele.
Nome Emilio Di Maria, MD PhD<br />
Contatti<br />
emilio.dimaria@unige.it; +39 0105634368<br />
Istituto/Dipartimento Dept. <strong>of</strong> Neuroscience, Ophthalmology and Genetics - University <strong>of</strong><br />
Genova<br />
and Division <strong>of</strong> Medical Genetics, Galliera Hospital, Genova, Italy<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse<br />
identificata<br />
F<strong>in</strong>anziamenti ricevuti<br />
Problem statement: The cl<strong>in</strong>ical manifestations <strong>of</strong> Alzheimer’s disease (AD)<br />
<strong>of</strong>ten <strong>in</strong>clude behavioural disturbances, such as apathy and mood disorders,<br />
as well as psychotic symptoms (delusions and halluc<strong>in</strong>ations). These features,<br />
which significantly affect the cl<strong>in</strong>ical outcome, are globally referred to as<br />
behavioural and psychological symptoms <strong>in</strong> dementia (BPSD). BPSD are<br />
recognised to cause a poorer course <strong>of</strong> disease, contribut<strong>in</strong>g to <strong>in</strong>crease the<br />
social, pharmacological, and manag<strong>in</strong>g costs <strong>of</strong> AD. Family studies have<br />
re<strong>in</strong>forced the hypothesis that the occurrence <strong>of</strong> psychosis <strong>in</strong> AD patients is<br />
partially determ<strong>in</strong>ed by genetic factors.<br />
The present proposal is <strong>in</strong> accordance to the priorities listed <strong>in</strong> the letter <strong>of</strong><br />
<strong>in</strong>tent for the jo<strong>in</strong>t <strong>in</strong>itiative, namely:<br />
- Genetic susceptibility to Alzheimer’s disease<br />
- Biomarkers<br />
- Study<strong>in</strong>g early onset forms <strong>of</strong> Alzheimer’s disease to follow-up disease<br />
progression.<br />
Objective: to identify genetic risk factors responsible for the occurrence <strong>of</strong><br />
behavioural and neuropsychiatric symptoms <strong>in</strong> patients with Alzheimer’s<br />
disease. We <strong>in</strong>tend to pursue this objective by us<strong>in</strong>g both ma<strong>in</strong> approaches: i)<br />
genome-wide association studies; ii) candidate gene approach, <strong>in</strong> that the<br />
analysis will be performed only on genetic markers which were demonstrated<br />
to be associated with neurodegeneration or psychiatric disorders.<br />
To accomplish this plan, a network <strong>of</strong> <strong>Italian</strong> cl<strong>in</strong>ical centres and laboratory <strong>of</strong><br />
genetics with dist<strong>in</strong>guished expertise <strong>in</strong> the field has already been built.<br />
Prelim<strong>in</strong>ary results: A large cohort <strong>of</strong> patients with AD has been recruited<br />
through a multicentre effort. Patients were assessed at their admittance with<br />
a complete sociodemographic and cl<strong>in</strong>ical data collection. The study protocol<br />
was approved by the Institutional Review Boards. Patients enrolment is still<br />
ongo<strong>in</strong>g. By apply<strong>in</strong>g the candidate gene approach outl<strong>in</strong>ed above, we have<br />
already demonstrated that the DAOA gene is a genetic risk factor for the<br />
occurrence <strong>of</strong> psychotic symptoms <strong>in</strong> AD [Di Maria et al, J Alzh Dis 2009].<br />
Relevance: The identification <strong>of</strong> genetic factors <strong>in</strong>fluenc<strong>in</strong>g the occurrence <strong>of</strong><br />
BPSD <strong>in</strong> AD will shed new light on the disease pathophysiology and allow a<br />
better prediction <strong>of</strong> the illness. On the basis <strong>of</strong> new l<strong>in</strong>es <strong>of</strong> evidence, earlier<br />
and tailored treatments could be appropriately adm<strong>in</strong>istered.<br />
Note: the <strong>Italian</strong> network on behavioural and psychological symptoms <strong>in</strong> dementia, quoted <strong>in</strong> the proposal<br />
section, has not been formally assembled. Therefore, the funded project granted to other<br />
<strong>research</strong>ers <strong>in</strong>volved could not be reported.<br />
Titolo progetto MacAge – MCI-AD Conversion: Analysis <strong>of</strong> Genetic Effects. A cohort
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
association study on the role <strong>of</strong> tau gene haplotypes and ApoE <strong>in</strong><br />
determ<strong>in</strong><strong>in</strong>g the evolution from mild cognitive impairment to Alzheimer’s<br />
disease.<br />
CARIGE Foundation, Italy<br />
1 year<br />
Background: The association <strong>of</strong> microtubule-associated tau prote<strong>in</strong> gene<br />
(MAPT) with Alzheimer’s disease (AD) had been controversial, but recent<br />
literature demonstrated that the MAPT H1c haplotype is a genetic risk<br />
factor for AD [Myers AJ, 2005]. H1c haplotype is associated with<br />
<strong>in</strong>creased tau expression and predisposes, <strong>in</strong> late-onset AD, to the<br />
unbalance between the 4-repeat- and the 3-repeat-conta<strong>in</strong><strong>in</strong>g is<strong>of</strong>orms<br />
(4rep/3rep), thus lead<strong>in</strong>g to tau dysfunction and deposition [Myers AJ,<br />
2007]. A distortion <strong>of</strong> the 4rep/3rep expression pattern was also found <strong>in</strong><br />
chol<strong>in</strong>ergic neurons from mild cognitive impairment (MCI), a cl<strong>in</strong>ical<br />
condition which is prodromal to AD [G<strong>in</strong>sberg SD, 2006]. Reduc<strong>in</strong>g tau<br />
levels <strong>in</strong> mice protects aga<strong>in</strong>st amyloid-β-<strong>in</strong>duced neuronal dysfunction<br />
[Roberson ED, 2007].<br />
Prelim<strong>in</strong>ary results: We previously demonstrated that the tau H1<br />
haplotype is a genetic risk factor for corticobasal degeneration, a sporadic<br />
tauopathy [Di Maria E, 2000]. More recently, a longitud<strong>in</strong>al study (PI:<br />
Pr<strong>of</strong>. M. Tabaton) characterised <strong>in</strong>dividuals with amnestic MCI (aMCI), <strong>in</strong><br />
order to f<strong>in</strong>d biological markers associated with the risk <strong>of</strong> AD [Ass<strong>in</strong>i A,<br />
2004; Odetti P, 2005]. To date, 224 <strong>in</strong>dividuals with aMCI were recruited.<br />
We foresee to collect with<strong>in</strong> the first phase <strong>of</strong> the project a cohort <strong>of</strong> at<br />
least 240 cases: all followed-up for 1 year, about ⅓ for ≥2 years.<br />
Objective: To evaluate the hypotheses that the evolution from MCI to AD<br />
is <strong>in</strong>fluenced by the tau locus, and that its effect is mediated by a<br />
qualitative and quantitative unbalance <strong>in</strong> the expression <strong>of</strong> the tau gene<br />
is<strong>of</strong>orms. The specific aims will be accomplished accord<strong>in</strong>g to the<br />
follow<strong>in</strong>g experimental plan (total duration: 1 year).<br />
- Patients evaluation: i) patients follow-up, blood sampl<strong>in</strong>g (accord<strong>in</strong>g<br />
to the current protocol for the longitud<strong>in</strong>al study); ii) DNA, plasma,<br />
serum, cell l<strong>in</strong>es bank<strong>in</strong>g (Galliera Genetic Bank).<br />
- Cohort association study: i) the tau tagg<strong>in</strong>g polymorphisms will be<br />
genotyped <strong>in</strong> the case series; ii) the association study will <strong>in</strong>vestigate<br />
the effect <strong>of</strong> the tau haplotypes on the MCI-AD transition, tak<strong>in</strong>g <strong>in</strong>to<br />
account ApoE genotypes, as well as age, age at onset, gender and<br />
possible <strong>in</strong>teract<strong>in</strong>g variables.<br />
- Gene expression study: expression level <strong>of</strong> the tau is<strong>of</strong>orms will be<br />
<strong>in</strong>vestigated <strong>in</strong> lymphoblasts from patients belong<strong>in</strong>g to the two<br />
subsets (MCI and MCI-AD converted) and carry<strong>in</strong>g different tau<br />
genotypes.<br />
Relevance and deliverables: The identification <strong>of</strong> genetic factors<br />
<strong>in</strong>fluenc<strong>in</strong>g the evolution from MCI to AD will shed new light on the<br />
disease pathophysiology and allow a better prediction <strong>of</strong> the disease<br />
progression. On the basis <strong>of</strong> new l<strong>in</strong>es <strong>of</strong> evidence, earlier and tailored
therapeutic approaches can be envisaged.
Nome Pr<strong>of</strong>. Carlo Caltagirone<br />
Contatti<br />
Tel.<br />
E mail<br />
Via Aret<strong>in</strong>a, 306 – 00179 Rome<br />
05 51501409<br />
c.caltagirone@hsantalucia.it<br />
Istituto/Dipartimento IRCCS Fondazione Santa Lucia – Laboratory <strong>of</strong> Cl<strong>in</strong>ical and Behavioral<br />
Neurology.<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse identificata Precl<strong>in</strong>ical Diagnosis<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
Markers to diagnose neurodegenerative diseases and <strong>of</strong> new targets to<br />
test the pharmacological treatments.<br />
<strong>Italian</strong> M<strong>in</strong>istry <strong>of</strong> Health<br />
2006-2008<br />
The present <strong>in</strong>vestigation <strong>in</strong>volved 200 <strong>in</strong>dividual with AD, whose<br />
cognitive function<strong>in</strong>g was monitored along a 18-months period by means<br />
<strong>of</strong> adm<strong>in</strong>istration <strong>of</strong> the M<strong>in</strong>i Mental State Exam<strong>in</strong>ation. The results<br />
document, on one side, a progressive decl<strong>in</strong>e <strong>of</strong> cognitive performance<br />
and, on the other side, a significant relationship between the occurrence<br />
<strong>of</strong> some specific genome variants and both the severity and the earlier<br />
onset <strong>of</strong> disease. In particular, the presence <strong>of</strong> i) allele e4 <strong>of</strong> ApoE<br />
polymorphism, <strong>of</strong> ii) allele T <strong>of</strong> the polymorphism <strong>of</strong> the seroton<strong>in</strong><br />
receptor 5HT2A (102T/C), <strong>of</strong> iii) some variants <strong>of</strong> GST genes as well as <strong>of</strong><br />
the iv) polymorphism -137C/C <strong>of</strong> the promoter region for IL-18,<br />
significantly <strong>in</strong>fluence both the onset and the cl<strong>in</strong>ical disease course.<br />
Moreover, <strong>in</strong> l<strong>in</strong>e with the above data, the analysis <strong>of</strong> the cellular<br />
components <strong>of</strong> <strong>in</strong>nate immunity confirmed that the AD patients’ immune<br />
system cells are more likely to produce phlogistic factors such as IL-6 and<br />
IL-18.
Furthermore, it has also been showed that the previously reported<br />
decrease <strong>of</strong> prote<strong>in</strong>ic level <strong>of</strong> ADAM10 with<strong>in</strong> the AD patients’ platelets, is<br />
not owed to reduced levels <strong>of</strong> ADAM10 mRNA but, rather, to others<br />
events that <strong>in</strong>volve the translation processes or the proteolysis <strong>of</strong> the<br />
molecule itself.<br />
F<strong>in</strong>ally, groundbreak<strong>in</strong>g <strong>in</strong> vivo and <strong>in</strong> vitro animals studies <strong>in</strong>dicate that<br />
the Tat-Pro ADAM peptide can produce alterations <strong>of</strong> the molecular<br />
composition <strong>of</strong> the glutamatergic synapses, affect<strong>in</strong>g the synaptic<br />
function<strong>in</strong>g.<br />
In conclusion, the present study adds some valuable <strong>in</strong>formation about<br />
the role played by some disease mediators, such as early <strong>in</strong>flammatory<br />
episodes and synaptic changes, thus, help<strong>in</strong>g to identify new molecular<br />
cascades and cellular processes <strong>in</strong>volved <strong>in</strong> the pathogenesis <strong>of</strong><br />
neurodegeneration and, likely, to be used as markers <strong>of</strong> the disease.<br />
Indeed, by means <strong>of</strong> project here presented, we were allowed to<br />
implement an <strong>in</strong>terdiscipl<strong>in</strong>ary work to explore the physio-pathogenetic<br />
pathways <strong>in</strong> AD, <strong>in</strong>volv<strong>in</strong>g a wide number <strong>of</strong> <strong>in</strong>dividuals with AD that<br />
belong to several <strong>Italian</strong> centres. As a matter <strong>of</strong> fact, <strong>in</strong> the view <strong>of</strong> the<br />
multidiscipl<strong>in</strong>ary network, rely<strong>in</strong>g upon the synergistic coord<strong>in</strong>ation<br />
between basic and cl<strong>in</strong>ical <strong>research</strong>ers, the <strong>in</strong>volvement <strong>of</strong> the most<br />
representative ITINAD units allowed us to reach results that significantly<br />
advance our understand<strong>in</strong>g <strong>of</strong> AD pathogenesis. Moreover, the same<br />
results might represent relevant clues to <strong>in</strong>dividuate an advanced<br />
strategy <strong>in</strong> order both to early diagnose AD and to formulate an accurate<br />
prognosis.
Nome Manservigi Roberto<br />
Contatti<br />
Tel. +39 0532 455401/455412<br />
Fax +39 0532 974470<br />
Mail: roberto.manservigi@unife.it<br />
Istituto/Dipartimento Department <strong>of</strong> Experimental and Diagnostic Medic<strong>in</strong>e<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse identificata<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
<strong>Neurodegenerative</strong> Diseases<br />
Search <strong>of</strong> herpetic prote<strong>in</strong>s <strong>in</strong>volved <strong>in</strong> the pathogenesis <strong>of</strong> Alzheimer.<br />
MiUR<br />
2006-2008 (two years)<br />
The overall objective <strong>of</strong> this proposal is to study the correlation between<br />
HSV-1 <strong>in</strong>fection and Alzheimer’s disease (AD) and to understand those<br />
HSV-1 functions that are <strong>in</strong>volved <strong>in</strong> the pathogenesis <strong>of</strong> AD.<br />
:<br />
Search <strong>of</strong> herpetic prote<strong>in</strong>s <strong>in</strong>volved <strong>in</strong> the pathogenesis <strong>of</strong> Alzheimer's<br />
disease for the development <strong>of</strong> new therapeutic strategies<br />
MiUR<br />
2008-2010 (two years)<br />
Despite the very numerous studies on Alzheimer's disease (AD), especially<br />
on amyloid plaques and neur<strong>of</strong>ibrillary tangles, little <strong>in</strong>formation has been<br />
obta<strong>in</strong>ed thus on the cause <strong>of</strong> the disease. Moreover, different<br />
experimental evidences def<strong>in</strong>e a role for Herpes simplex virus type 1 (HSV-<br />
1) <strong>in</strong>fection as a risk factor for AD development. The goal <strong>of</strong> this project is<br />
to study and characterize the different <strong>in</strong>teractions between viral prote<strong>in</strong>s<br />
and the disease development, <strong>in</strong> order to obta<strong>in</strong> a better understand<strong>in</strong>g <strong>of</strong><br />
AD orig<strong>in</strong>s and, above all, to develop <strong>in</strong>novative therapies.
3. HUMAN/CLINICAL RESEARCH<br />
B. Epidemiology genetics
Nome Luisa Benussi, Giuliano B<strong>in</strong>etti<br />
Contatti<br />
0339-030-3501725<br />
lbenussi@fatebenefratelli.it<br />
Istituto/Dipartimento IRCCS “Centro S. Giovanni di Dio-Fatebenefratelli” NeuroBioGen Lab-<br />
Memory Cl<strong>in</strong>ic, Brescia Italy<br />
Proposta di ricerca<br />
Alzheimer disease (AD) is a genetically complex and heterogeneous disorder. Less than 10% <strong>of</strong> AD patients<br />
are familial with an autosomal dom<strong>in</strong>ant <strong>in</strong>heritance <strong>of</strong> the disease (FAD). In autosomal dom<strong>in</strong>ant AD<br />
families, rare mutations <strong>in</strong> the amyloid precursor prote<strong>in</strong> gene, and the presenil<strong>in</strong> 1 and 2 genes have been<br />
identified. In sporadic patients the disease is expected to result from the <strong>in</strong>teraction <strong>of</strong> multiple<br />
susceptibility genes and unknown environmental factors. So far, the e4 allele <strong>of</strong> the apolipoprote<strong>in</strong> E<br />
(APOE) gene has been the only consistently replicated genetic risk factor for late-onset AD. Through<br />
genome wide association studies (GWAS), a novel opportunity <strong>of</strong> identify<strong>in</strong>g dementia risk genes and<br />
associated disease pathways has emerged with several potential AD risk genes already reported. Further<br />
validation and replication <strong>in</strong> other patients cohort comb<strong>in</strong>ed with functional characterization <strong>of</strong> these<br />
genes could lead to a better understand<strong>in</strong>g <strong>of</strong> the pathophysiology underly<strong>in</strong>g dementia and open new<br />
therapeutic possibilities for AD. In the last years our group has contributed to: 1) the identification <strong>of</strong><br />
genetic factors that <strong>in</strong>fluence the disease risk and the pharmacological response <strong>in</strong> AD patients (Nicosia et<br />
al., Dement Geriatr Cogn Disord. 2001;Ventriglia et al, Mol Psychiatry 2002; Scassellati et al, Neurosci Lett<br />
2004; Ventriglia et al, Ag<strong>in</strong>g Cl<strong>in</strong> Exp Res 2005; Emanuele et al, NBA 2009; Di Maria et al, JAD 2010; Santoro<br />
et al, CNS Drugs 2010); 2) the identification <strong>of</strong> mutations that are associated with familial forms <strong>of</strong> AD<br />
(F<strong>in</strong>ckh et al, Am J Hum Genet 2000; F<strong>in</strong>ckh et al, Neurology 2000; B<strong>in</strong>etti et al, Neurosci Lett 2003;B<strong>in</strong>etti<br />
et al, Ann Neurol 2003; Signor<strong>in</strong>i et al, Curr Alzheimer Res 2004; Alberici et al, Eur J Neurol 2007;Ghidoni et<br />
al, JAD 2009); 3) the assessment <strong>of</strong> areas <strong>of</strong> <strong>in</strong>tervention for genetic counsel<strong>in</strong>g <strong>of</strong> dementia by a crosscultural<br />
comparison between <strong>Italian</strong>s and Americans (B<strong>in</strong>etti et al., PEC 2006).<br />
The specific objectives <strong>of</strong> this proposal are:<br />
1) Identification <strong>of</strong> genetic factors that <strong>in</strong>fluence the disease susceptibility and the pharmacological<br />
response <strong>in</strong> AD patients (genome wide association studies);<br />
2) Identification <strong>of</strong> new mutations and novel AD-associated loci (genetic screen<strong>in</strong>g; l<strong>in</strong>kage analysis;<br />
quantitative trait - proteomic pr<strong>of</strong>iles- l<strong>in</strong>kage analysis);<br />
3) Evaluat<strong>in</strong>g the psychosocial impact <strong>of</strong> genetic test<strong>in</strong>g <strong>in</strong> families with hereditary forms <strong>of</strong> AD.<br />
To carry out this project our group will collaborate with: Dr Roberta Ghidoni (Proteomics Unit, IRCCS -<br />
Fatebenefratelli, Brescia) on genetic and proteomic studies; Dr F Tagliav<strong>in</strong>i (IRCCS Fondazione Istituto Carlo<br />
Besta, Milano), Dr D Galimberti and Dr E Scarp<strong>in</strong>i (University <strong>of</strong> Milan) on genetics and genetic counsel<strong>in</strong>g;<br />
Pr<strong>of</strong> C Franceschi (Università di Bologna), Dr G Forloni (Istituto Mario Negri, Milano) on genetics and<br />
pharmacogenetics.<br />
Our Group, along with the mentioned National collaborators, can <strong>of</strong>fer to the proposed project the<br />
follow<strong>in</strong>g resources:<br />
1) Cl<strong>in</strong>ical expertise <strong>in</strong> Alzheimer disease; 2) A large collection <strong>of</strong> biological samples from sporadic and<br />
familial AD patients (more than 1000 <strong>in</strong>dex patients) and a similar number <strong>of</strong> age-matched controls; 3) A<br />
large collection <strong>of</strong> families with autosomal dom<strong>in</strong>ant <strong>in</strong>heritance trait for AD (more than 90 families); 4)<br />
Genetic test<strong>in</strong>g as well as a genetic counsell<strong>in</strong>g program for families with hereditary forms <strong>of</strong> dementia.<br />
Area di <strong>in</strong>teresse identificata Genetic susceptibility to Alzheimer’s disease and genome wide<br />
association studies<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Project1: Validation <strong>of</strong> genetic and biochemical markers for early<br />
diagnosis <strong>of</strong> AD and the prediction <strong>of</strong> conversion <strong>of</strong> MCI <strong>in</strong>to AD, and
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
design <strong>of</strong> a multivariate molecular protocol hav<strong>in</strong>g high diagnostic and<br />
prognostic accuracy.<br />
Project2: Marker biologici di neurodegenerazione utilizzabili nella pratica<br />
cl<strong>in</strong>ica ai f<strong>in</strong>i della diagnosi precoce e differenziale, della <strong>in</strong>dividuazione<br />
delle forme con risposta ottimale alle attuali terapie<br />
Project3:GenEtica- Pr<strong>of</strong>ili bioetici e biogiuridici della genetica tra ricerca<br />
sperimentale, consulenza e prospettive terapeutiche.<br />
Project1:<strong>Italian</strong> M<strong>in</strong>istry <strong>of</strong> Health Progr Strategico PS39, prog 1<br />
Project2:<strong>Italian</strong> M<strong>in</strong>istry <strong>of</strong> Health Progr Strategico conv.71 prog 6<br />
Project3: <strong>Italian</strong> M<strong>in</strong>istry <strong>of</strong> University and Research, FIRB2006<br />
Project1:01-01-2009/31-12-2010<br />
Project2:7-01-2008/7-04-2010<br />
Project3:15-10-2008/15/10/2011<br />
Project 1 and Project 2 aims:<br />
1) The development and validation <strong>of</strong> a multi-factorial protocol that<br />
<strong>in</strong>tegrates molecular, imag<strong>in</strong>g, neurophysiological, neuropsychological<br />
and behavioral data for early diagnosis <strong>of</strong> AD, <strong>in</strong> particular dur<strong>in</strong>g the<br />
precl<strong>in</strong>ical phase and the prodromal stage <strong>of</strong> "mild cognitive impairment"<br />
when the symptoms are not severe enough to fulfill the current<br />
diagnostic criteria for AD.<br />
2) Validation <strong>of</strong> this new diagnostic protocol with<strong>in</strong> a regional public<br />
health network, and evaluation <strong>of</strong> the health care, organization and<br />
economic implications <strong>of</strong> its transfer to the National Health Service.<br />
Project3 aims:<br />
1) to evaluate the psychosocial impact <strong>of</strong> genetic test<strong>in</strong>g <strong>in</strong> families with<br />
hereditary forms <strong>of</strong> dementia; 2) to evaluate the efficacy <strong>of</strong> the pre-test<br />
educational session and the <strong>in</strong>formation comprehension dur<strong>in</strong>g genetic<br />
counsell<strong>in</strong>g<br />
3) analysis <strong>of</strong> the ethical issues aris<strong>in</strong>g from a genetic counsell<strong>in</strong>g service<br />
for dementia
Nome<br />
Maria Del Zompo<br />
Contatti<br />
Phone: +39 070 6092438<br />
Fax: +39 070 653584<br />
Email: delzompo@unica.it<br />
Istituto/Dipartimento Department <strong>of</strong> Neurosciences “B.B. Brodie”, University <strong>of</strong> Cagliari,<br />
Cagliari, Italy<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse identificata<br />
- Genetic susceptibility to Alzheimer’s disease and genome<br />
wide association studies<br />
- Biobank<strong>in</strong>g (blood sample, CSF, bra<strong>in</strong> repository…)<br />
(In the Biobank <strong>of</strong> the Section <strong>of</strong> Cl<strong>in</strong>ical Pharmacolgy <strong>of</strong> the Department<br />
<strong>of</strong> Neuroscience, University <strong>of</strong> Cagliary, are cryopreserved the<br />
lymphoblastoid cell l<strong>in</strong>es <strong>of</strong> 147 patients with Alzheimer's disease and 116<br />
controls. AD patients <strong>of</strong> proven Sard<strong>in</strong>ian ancestry (parents, grandparents<br />
and great-grandparents) were diagnosed accord<strong>in</strong>g to DSM-IV, and<br />
National Institute <strong>of</strong> Neurologic and Communicative Disorders and<br />
Stroke–AD and Related Disorders Association (NINCDS-ADRDA) criteria<br />
for possible or probable AD (McKhann et al, 1984 ). Cognitive screen<strong>in</strong>g<br />
was performed by means <strong>of</strong> M<strong>in</strong>i-Mental State Exam<strong>in</strong>ation (MMSE)<br />
(Folste<strong>in</strong> et al, 1975). All control subjects were cognitively <strong>in</strong>tact<br />
volunteers with an MMSE score ≥ 26 and with negative family history for<br />
dementia.)
3. HUMAN/CLINICAL RESEARCH<br />
C. Biomarkers and early diagnosis and imag<strong>in</strong>g
Nome Patrizia Mecocci<br />
Contatti<br />
mecocci@unipg.it<br />
+39 075 5783270<br />
Istituto/Dipartimento Sezione di Gerontologia e Geriatria<br />
Dipartimento di Medic<strong>in</strong>a Cl<strong>in</strong>ica e Sperimentale<br />
Università degli Studi di Perugia<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse 1)Studies on plasma biomarkers <strong>of</strong> oxidative/nitrosative stress, <strong>in</strong>flammation,<br />
identificata<br />
lipid and glucose metabolism, <strong>in</strong> older adults, both <strong>in</strong> population based and<br />
cl<strong>in</strong>ical based longitud<strong>in</strong>al studies. Samples (already collected or to be<br />
collected) derived from Italy and other European countries, with which we are<br />
collaborat<strong>in</strong>g, to develop easily available biomarkers that can be used <strong>in</strong> the<br />
elderly to: a) study age-related changes <strong>in</strong> metabolism, also <strong>in</strong> relation to<br />
lifestyle (i.e. diet, physical activity); b) obta<strong>in</strong> diagnostic and prognostic tools,<br />
which can be used <strong>in</strong> different age-related disorders (cognitive<br />
decl<strong>in</strong>e/dementia; multimorbidity; disability). The ma<strong>in</strong> goal is to obta<strong>in</strong> non<strong>in</strong>vasive<br />
tools that can be used <strong>in</strong> age-related disorders for i) <strong>in</strong>vestigat<strong>in</strong>g<br />
pathogenetic mechanisms; ii) diagnosis, prognosis and monitor<strong>in</strong>g <strong>of</strong><br />
preventative and therapeutic <strong>in</strong>terventions.<br />
Age-related cognitive decl<strong>in</strong>e and dementia are one <strong>of</strong> our ma<strong>in</strong> <strong>research</strong> areas,<br />
and our studies <strong>in</strong>tegrated plasma biomarkers and neuroimag<strong>in</strong>g data.<br />
2) Studie on cellular and animal models <strong>of</strong> ag<strong>in</strong>g, us<strong>in</strong>g markers <strong>of</strong><br />
oxidative/nitrosative stress and mitochondrial structure and activity to evaluate<br />
the effects <strong>of</strong> novel therapeutics (chemically modified antioxidants, vitam<strong>in</strong>s,<br />
nutriceuticals) that can be used <strong>in</strong> humans to prevent age-related cognitive<br />
disorders.<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto ZINCAGE Contract n° 506850<br />
Ente f<strong>in</strong>anziatore European Union <strong>in</strong> the 6th Framework Program (FP6): "Food Quality and<br />
Safety", Priority 5, Thematic Area T6<br />
Durata progetto 3 years<br />
Abstract del progetto This is an epidemiological study on the <strong>in</strong>fluence <strong>of</strong> diet and lifestyle on healthy<br />
age<strong>in</strong>g, aimed at prevent<strong>in</strong>g adult degenerative disease, particularly focus<strong>in</strong>g on<br />
cardiovascular and neurodegenerative diseases and also address<strong>in</strong>g<br />
malnutrition <strong>of</strong> the elderly.<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto InnoMed (Innovative Medic<strong>in</strong>es for Europe) Project. Contract n° 518170.<br />
Ente f<strong>in</strong>anziatore European Union <strong>in</strong> the 6th Framework Program (FP6): Life Science Health,<br />
Priority 5.<br />
Durata progetto 3 years<br />
Abstract del progetto The project, led by the European Federation <strong>of</strong> Pharmaceutical Industry and<br />
Associations (EFPIA), addresses the complex issues associated with the future <strong>of</strong><br />
biomedical <strong>research</strong> <strong>in</strong> the EU,and addresses ways <strong>of</strong> achiev<strong>in</strong>g accelerated<br />
development <strong>of</strong>, safe and more effective medic<strong>in</strong>es, aim<strong>in</strong>g to revitalize the<br />
European biopharmaceutical <strong>research</strong> environment. The project is ma<strong>in</strong>ly<br />
devoted to study cognitive impairment <strong>in</strong> the elderly and Alzheimer’s disease.<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto K4Care Project (Knowledge-Based Homecare eServices for an Age<strong>in</strong>g Europe)
Contract n° 026968<br />
Ente f<strong>in</strong>anziatore European Union <strong>in</strong> the 6th Framework Program (FP6): Information, Society,<br />
Technology, Priority 2<br />
Durata progetto 3 years<br />
Abstract del progetto The ma<strong>in</strong> objective <strong>of</strong> the K4CARE project is to improve the capabilities <strong>of</strong> the<br />
new EU society to manage and respond to the <strong>in</strong>creas<strong>in</strong>g number <strong>of</strong> senior<br />
population requir<strong>in</strong>g a personalized healthcare assistance. The project will<br />
capture and <strong>in</strong>tegrate the <strong>in</strong>formation, skills, expertises, and experiences <strong>of</strong><br />
specialised centres and pr<strong>of</strong>essionals <strong>of</strong> several old and new EU countries, and<br />
will <strong>in</strong>corporate them <strong>in</strong> an <strong>in</strong>telligent web platform <strong>in</strong> order to give service to<br />
health pr<strong>of</strong>essionals, patients, and citizens <strong>in</strong> general. Chronic conditions, such<br />
as dementia, are the ma<strong>in</strong> focus <strong>of</strong> the project.<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto PRIN Oxidative and nitrosative damage <strong>of</strong> mitochondrial prote<strong>in</strong>s <strong>in</strong> models <strong>of</strong><br />
cell senescence and <strong>in</strong> subjects with Alzheimer's disease: a pre-cl<strong>in</strong>ical study on<br />
natural forms and new synthetic analogues <strong>of</strong> vitam<strong>in</strong> E<br />
Ente f<strong>in</strong>anziatore MIUR<br />
Durata progetto 2 years<br />
Abstract del progetto Mitochondria are key targets <strong>of</strong> oxidative stress with relevance <strong>in</strong> cell<br />
senescence (mitochondrial theory <strong>of</strong> ag<strong>in</strong>g) and possibly <strong>in</strong> the pathogenetic<br />
mechanisms <strong>of</strong> age-related diseases such as Mild Cognitive Impairment<br />
(MCI)and Alzheimer's disease (AD). In this context emerg<strong>in</strong>g aspects deal with<br />
the study <strong>of</strong> post-transductional modifications (PTMs) <strong>in</strong> prote<strong>in</strong>s caused by<br />
reactive oxygen or nitrogen species (ROS and RNS, respectively). The aim <strong>of</strong> this<br />
project is to evaluate PTMs <strong>in</strong> mitochondrial prote<strong>in</strong>s <strong>in</strong> "<strong>in</strong> vitro" models <strong>of</strong><br />
cellular senescence as well as <strong>in</strong> peripheral cells from subjects with MCI and AD<br />
also evaluat<strong>in</strong>g the role as protect<strong>in</strong>g agents <strong>of</strong> natural forms and newly<br />
synthesized analogues <strong>of</strong> vitam<strong>in</strong> E.<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Young <strong>research</strong>ers 2007 Epidemiology and risk factors for Mild Cognitive<br />
Impairment, Alzheimer’s disease and dementia. The Zabut Ag<strong>in</strong>g Project:<br />
5-year follow-up study on a rural Sicilian population.<br />
Ente f<strong>in</strong>anziatore<br />
M<strong>in</strong>istero della Salute<br />
Durata progetto<br />
Abstract del progetto<br />
3 years<br />
The study will evaluate the risk factors for MCI and AD and the<br />
progression <strong>of</strong> MCI to dementia <strong>in</strong> the elderly with a special focus<br />
regard<strong>in</strong>g modifiable (non-genetic) and non-modifiable (genetic) risk<br />
factors. Basel<strong>in</strong>e and 5-year population-based data will, therefore, be<br />
used. Ma<strong>in</strong> topics are i) the role <strong>of</strong> modifiable vascular risk factors; ii) the<br />
role <strong>of</strong> behavioural symptoms, particularly depression, <strong>in</strong> determ<strong>in</strong><strong>in</strong>g the<br />
risk <strong>of</strong> MCI and its progression to dementia/AD; iii) the effects <strong>of</strong><br />
oxidative stress and vitam<strong>in</strong> E on the development <strong>of</strong> MCI and<br />
dementia/AD; iv) the role <strong>of</strong> recently proposed and novel putative genes<br />
<strong>in</strong>volved <strong>in</strong> would encourage new <strong>research</strong> <strong>in</strong> pharmacogenomics.
Nome Pr<strong>of</strong>. Salvatore Monaco<br />
Contatti<br />
salvatore.monaco@univr.it<br />
045-8124285/4461<br />
Istituto/Dipartimento Neuropatologia/Scienze Neurologiche e della Visione<br />
Proposta di ricerca<br />
Dementia is a cl<strong>in</strong>ical syndrome characterised by a progressive loss <strong>of</strong> cognitive abilities and executive<br />
functions, with a significant compromise <strong>of</strong> patient’s social, relational and work<strong>in</strong>g functions. Recent data<br />
suggest that pathological and biochemical deteriorations take place years before the cl<strong>in</strong>ical emergence <strong>of</strong><br />
the different dementia conditions. The search for novel markers with a high diagnostic sensitivity is<br />
therefore one <strong>of</strong> the major and high-priority objective <strong>of</strong> dementia <strong>research</strong>. There are several<br />
methodologies that are presently used or under development, <strong>in</strong>clud<strong>in</strong>g proteomics which has been<br />
shown as one <strong>of</strong> the most promis<strong>in</strong>g and useful for the identification <strong>of</strong> novel markers.<br />
Aim <strong>of</strong> the present program is therefore to identify cl<strong>in</strong>ical and biological markers <strong>of</strong> dementia accord<strong>in</strong>g<br />
to the follow<strong>in</strong>g experimental strategy:<br />
A). To study mild cognitive impairment and Alzheimer’s disease patients by assess<strong>in</strong>g a specific cl<strong>in</strong>ical,<br />
neuropsychological, genetic and biochemical pr<strong>of</strong>ile at the <strong>in</strong>dividual level.<br />
B). To identify novel genotypic markers associated to the specific cl<strong>in</strong>ical pr<strong>of</strong>ile from all <strong>in</strong>dividual<br />
patients.<br />
C). To identify novel CSF and plasmatic phenotypic markers from all patients, by us<strong>in</strong>g a proteomic<br />
approach.<br />
Area di <strong>in</strong>teresse identificata<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
Biomarkers<br />
Biobank<strong>in</strong>g<br />
Translational <strong>research</strong><br />
Disabilità cognitiva e comportamentale nelle demenze e nelle psicosi<br />
Fondazione CARIVERONA<br />
3 anni
Nome Rita Casadio, Pier Luigi Martelli<br />
Contatti<br />
casadio@biocomp.unibo.it<br />
gigi@biocomp.unibo.it<br />
Istituto/Dipartimento Dipartimento di Biologia Evoluzionistica Sperimentale<br />
Proposta di ricerca<br />
Genetic association studies have contributed lists <strong>of</strong> genetic variations (ma<strong>in</strong>ly SNPs) that are<br />
putatively related with the <strong>in</strong>surgence and/or the prognosis <strong>of</strong> the Alzheimer disease (AD). Next<br />
generation sequenc<strong>in</strong>g techniques will enormously <strong>in</strong>crease the amount <strong>of</strong> data on genome wide<br />
variability associated with the AD. These data will be useful for discover<strong>in</strong>g new genetic markers <strong>of</strong><br />
the risk and for better understand<strong>in</strong>g the molecular mechanisms underly<strong>in</strong>g the aetiology <strong>of</strong> the AD.<br />
To benefit from these data, an important analysis effort has to be done <strong>in</strong> two different and<br />
complementary directions:<br />
1) prioritisation, for highlight<strong>in</strong>g among all the reported variations those that are more likely to<br />
be related to the AD;<br />
2) annotation, for understand<strong>in</strong>g if the variations occur <strong>in</strong> cod<strong>in</strong>g or <strong>in</strong> regulatory regions <strong>of</strong> the<br />
genome and for discover<strong>in</strong>g their likely molecular effects.<br />
Computational methods that are able to <strong>in</strong>tegrate <strong>in</strong>formation from different sources <strong>in</strong> a Systems<br />
Biology perspective are then essential. In particular we propose to implement a pipel<strong>in</strong>e able to:<br />
[DA 1] search if the variations occur <strong>in</strong> a prote<strong>in</strong> cod<strong>in</strong>g region, <strong>in</strong> a RNA-cod<strong>in</strong>g region or <strong>in</strong> a<br />
regulatory element;<br />
[DA 2] predict the effect <strong>of</strong> prote<strong>in</strong> mutations on localization, structure, stability, and<br />
function;<br />
[DA 3] predict the correlation between prote<strong>in</strong> mutations and diseases;<br />
[DA 4] predict the effect <strong>of</strong> prote<strong>in</strong> mutations on the prote<strong>in</strong>-prote<strong>in</strong> and prote<strong>in</strong>-DNA<br />
<strong>in</strong>teractions;<br />
[DA 5] identify the mRNAs targeted by miRNAs and to predict the effect <strong>of</strong> variations <strong>in</strong><br />
miRNAs;<br />
[DA 6] predict the effect <strong>of</strong> variations <strong>in</strong> regulatory regions on the b<strong>in</strong>d<strong>in</strong>g with transcription<br />
factors;<br />
[DA 7] analyse the effect <strong>of</strong> cariations on regulatory and <strong>in</strong>teraction networks and on<br />
metabolic and signall<strong>in</strong>g pathways;<br />
[DA 8] collect, compare and store the results <strong>of</strong> previous analyses for different variations.<br />
The Biocomput<strong>in</strong>g Group <strong>of</strong> the University <strong>of</strong> Bologna developed several methods that can be
<strong>in</strong>tegrated <strong>in</strong> the pipel<strong>in</strong>e (see www.biocomp.unibo.it). Among the others, efficient tools <strong>of</strong> <strong>in</strong>terest <strong>in</strong><br />
this particular case are devoted to:<br />
1) the structural and functional annotation <strong>of</strong> prote<strong>in</strong> sequences (BAR: Bartoli et al. 2009);<br />
2) the prediction <strong>of</strong> membrane prote<strong>in</strong> topology (ENSEMBLE: Martelli et al. 2003);<br />
3) the prediction <strong>of</strong> perturbations <strong>in</strong> prote<strong>in</strong> stability upon mutations (I-Mutant: Capriotti et al.<br />
2008);<br />
4) the prediction <strong>of</strong> the correlation between prote<strong>in</strong> mutations and diseases (SNPs&GO:<br />
Calabrese et al. 2009);<br />
5) the prote<strong>in</strong> localization (BaCelLo: Pierleoni et al. 2009)<br />
6) the prediction <strong>of</strong> prote<strong>in</strong> <strong>in</strong>teraction sites (ISpred: Fariselli et al. 2002) and their analysis <strong>in</strong> the<br />
context <strong>of</strong> genome-wide <strong>in</strong>teraction networks (Bartoli et al., <strong>in</strong> press)<br />
7) the prediction <strong>of</strong> silenc<strong>in</strong>g effect <strong>of</strong> miRNAs (Montanucci et al. 2008).<br />
References<br />
� Bartoli L, Montanucci L, Fronza R, Martelli PL, Fariselli P, Carota L, Donvito G, Maggi G,<br />
Casadio R -The Bologna Annotation Resource: a non-hierarchical method for the functional<br />
and structural annotation <strong>of</strong> prote<strong>in</strong> sequences rely<strong>in</strong>g on a comparative large-scale genome<br />
analysis- J Proteome Res 8:4362-4371 (2009)<br />
� Bartoli L, Martelli PL, Rossi I, Fariselli P, Casadio R -The prediction <strong>of</strong> prote<strong>in</strong>-prote<strong>in</strong><br />
<strong>in</strong>teraction sites <strong>in</strong> genome-wide prote<strong>in</strong> <strong>in</strong>teraction networks: the test case <strong>of</strong> the human cell<br />
cycle- Curr Prot Pept Sci (<strong>in</strong> press)<br />
� Calabrese R, Capriotti E, Fariselli P, Martelli PL, Casadio R -Functional annotations improve the<br />
predictive score <strong>of</strong> human disease-related mutations <strong>in</strong> prote<strong>in</strong>s- Hum Mutat 30:1237-1244<br />
(2009)<br />
� Capriotti E, Fariselli P, Rossi I, Casadio R -A three-state prediction <strong>of</strong> s<strong>in</strong>gle po<strong>in</strong>t mutations on<br />
prote<strong>in</strong> stability changes- BMC Bio<strong>in</strong>formatics 9 Suppl 2:S6 (2008)<br />
� Fariselli P, Pazos F, Valencia A, Casadio R -Prediction <strong>of</strong> prote<strong>in</strong>-prote<strong>in</strong> <strong>in</strong>teraction sites <strong>in</strong><br />
heterocomplexes with neural networks- Eur J Biochem 269:1356-1361 (2002)<br />
� Martelli PL, Fariselli P, Casadio R -An ENSEMBLE mach<strong>in</strong>e learn<strong>in</strong>g approach for the prediction<br />
<strong>of</strong> all-alpha membrane prote<strong>in</strong>s- Bio<strong>in</strong>formatics 19:I205-I211 (2003)<br />
� Montanucci L, Fariselli P, Martelli PL, Rossi I, Casadio R -In Silico Evidence <strong>of</strong> the Relationship<br />
Between miRNAs and siRNAs- Open Appl Inf Journal 2:9-13 (2008)<br />
� Pierleoni A, Martelli PL, Fariselli P, Casadio R -BaCelLo: a balanced subcellular localization<br />
predictor- Bio<strong>in</strong>formatics 22:e408-e416 (2006)<br />
Area di <strong>in</strong>teresse identificata Genome wide association studies
Nome<br />
Elio Scarp<strong>in</strong>i, Daniela Galimberti<br />
Contatti<br />
0255033847<br />
daniela.galimberti@unimi.it<br />
Istituto/Dipartimento Università di Milano, Dipartimento di Scienze Neurologiche<br />
Proposta di ricerca<br />
Given the rationale that AD is a multifactorial disease and that <strong>in</strong>flammation plays a role <strong>in</strong> its<br />
pathogenesis, this proposal aims to study <strong>in</strong> detail genes encod<strong>in</strong>g for <strong>in</strong>flammatory molecules, <strong>in</strong>clud<strong>in</strong>g<br />
progranul<strong>in</strong> and chemok<strong>in</strong>es, all <strong>of</strong> which located <strong>in</strong> chromosome 17q.21, both from a genetic and<br />
functional po<strong>in</strong>t <strong>of</strong> view. This <strong>research</strong> will take advantage from the availability <strong>of</strong> a biobank <strong>in</strong>clud<strong>in</strong>g 500<br />
patients with AD diagnosed accord<strong>in</strong>g to current criteria, and a similar number <strong>of</strong> age-matched controls.<br />
Genomic DNA have been collected for each subject. In addition, <strong>in</strong> a group <strong>of</strong> about 200 patients and<br />
controls, serum, plasma, CSF and RNA from PBMC and CSF cells have been collected as well.<br />
In particular, the specific objectives <strong>of</strong> this <strong>research</strong> are aimed to:<br />
1. Carry out a thorough association analysis <strong>of</strong> the region <strong>of</strong> chromosome 17 conta<strong>in</strong><strong>in</strong>g PGRN and the<br />
selected chemok<strong>in</strong>e cluster (CCL2, CCL3, CCL4, CCL5, CCL7, CCL8, CCL11, CCL13, CCL14, CCL15,<br />
CCL16, CCL18, CCL23, CCR7, CCR10). Optimal tagg<strong>in</strong>g SNPs cover<strong>in</strong>g all the l<strong>in</strong>kage blocks will be<br />
chosen. To this aim, we will perform a power calculation us<strong>in</strong>g the Genetic Power Calculator<br />
program (http://pngu.mgh.harvard.edu/~purcell/gpc/) based on sample size, the average observed<br />
MAF, and assum<strong>in</strong>g a multiplicative model and an estimated prevalence <strong>of</strong> AD <strong>in</strong> Italy <strong>of</strong> 1 case per<br />
1000 <strong>in</strong>habitants after 65 years <strong>of</strong> age.<br />
2. Evaluate expression levels <strong>of</strong> the above mentioned genes <strong>in</strong> cells isolated from CSF and PBMC by<br />
Real-Time PCR. Prioritized hits selected at aim 1) will be correlated with expression levels to test<br />
whether these SNPs <strong>in</strong>fluence the level <strong>of</strong> transcription.<br />
3. Analyze the pattern <strong>of</strong> miRNA which act as silencer <strong>of</strong> mRNA studied <strong>in</strong> aim 2). miRNA possibly<br />
<strong>in</strong>fluenc<strong>in</strong>g the translation <strong>of</strong> the above mentioned genes will be selected by submitt<strong>in</strong>g queries<br />
at the website http://microrna.sanger.ac.uk/, which conta<strong>in</strong>s sequences <strong>of</strong> all published mature<br />
miRNA, together with their predicted source hairp<strong>in</strong> precursors.<br />
4. Evalutate, by ELISA, CSF and serum levels <strong>of</strong> PGRN and chemok<strong>in</strong>es.<br />
5. Comb<strong>in</strong>e genetic, expression and functional data with the cl<strong>in</strong>ical phenotype <strong>of</strong> patients, <strong>in</strong>clud<strong>in</strong>g<br />
longitud<strong>in</strong>al full neuropsychological test<strong>in</strong>g, treatment efficacy and bra<strong>in</strong>/hippocampal atrophy at<br />
MRI, <strong>in</strong> order to identify a genetic pattern and/or novel pathogenetic mechanisms suitable to<br />
predict which patients will likely decl<strong>in</strong>e more rapidly or will respond to therapy.<br />
Centers collaborat<strong>in</strong>g to this project: University <strong>of</strong> Brescia (A. Padovani, D. F<strong>in</strong>azzi), IRCCS<br />
Fatebenefratelli Brescia (G. B<strong>in</strong>etti, R. Ghidoni), IRCCS Castellanza (M. Franceschi), IRCCS S. Raffaele,<br />
Milan (S. Cappa), University <strong>of</strong> Tur<strong>in</strong> (I. Ra<strong>in</strong>ero). From the University <strong>of</strong> Milan: C. Mariani, R. Dom<strong>in</strong>ici,<br />
Area di <strong>in</strong>teresse identificata<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Genetic susceptibility to Alzheimer’s disease and genome wide<br />
association studies<br />
- Genetic Risk factors and peripheral biological markers <strong>of</strong> conversion<br />
from Mild Cognitive Impairment to Alzheimer's Disease (to DG)<br />
- Introduc<strong>in</strong>g new bio-markers <strong>in</strong> cl<strong>in</strong>ical practice for the early diagnosis <strong>of</strong><br />
Alzheimer disease: methodological, cl<strong>in</strong>ical and organisational aspects for
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
the National Health System (to ES)<br />
Progetti ( 1 and 4) parte di Programma Strategico (PS39), <strong>Italian</strong> M<strong>in</strong>istry<br />
<strong>of</strong> Health<br />
01-01-2009/31-12-2010<br />
This program has two primary aims:<br />
A. The development and validation <strong>of</strong> a multi-factorial protocol that<br />
<strong>in</strong>tegrates molecular, imag<strong>in</strong>g, neurophysiological, neu- ropsychological<br />
and behavioral data for early diagnosis <strong>of</strong> Alzheimer's disease (AD), <strong>in</strong><br />
particular dur<strong>in</strong>g the precl<strong>in</strong>ical pha se and the prodromal stage <strong>of</strong> "mild<br />
cognitive impairment" (MCI) when the symptoms are not severe enough<br />
to fulfill the current diagnostic criteria for AD. The achievement <strong>of</strong> this<br />
objective is one <strong>of</strong> the priorities <strong>of</strong> the <strong>in</strong>ternational <strong>research</strong> com munity,<br />
<strong>in</strong> the perspective <strong>of</strong> specific, disease-modify<strong>in</strong>g therapies that are under<br />
development.<br />
B. Validation <strong>of</strong> this new diagnostic protocol with<strong>in</strong> a regional public<br />
health network, and evaluation <strong>of</strong> the health care, orga nization and<br />
economic implications <strong>of</strong> its transfer to the National Health Service (NHS).<br />
The program will be articulated <strong>in</strong>to four complementary and strictly<br />
<strong>in</strong>tegrated projects with the follow<strong>in</strong>g specific aims:<br />
PROJECT 1. Validation <strong>of</strong> genetic and biochemical markers for early<br />
diagnosis <strong>of</strong> AD and the prediction <strong>of</strong> conversion <strong>of</strong> MCI <strong>in</strong>to AD, and<br />
design <strong>of</strong> a multivariate molecular protocol hav<strong>in</strong>g high diagnostic and<br />
prognostic accuracy.<br />
PROJECT 2. Development <strong>of</strong> standard operat<strong>in</strong>g procedures (SOPs) and<br />
quality control (QC) for neuroimag<strong>in</strong>g (MRI, 18F-FDG PET and 18F-DDNP<br />
PET) and cl<strong>in</strong>ical neurophysiological analysis (<strong>in</strong>clud<strong>in</strong>g<br />
electroencephalography, magnetoencephalography and transcranial<br />
magnetic stimulation) for the diagnosis <strong>of</strong> prodromic or <strong>in</strong>cipient AD.<br />
PROJECT 3. Def<strong>in</strong>ition <strong>of</strong> cognitive and behavioral <strong>in</strong>dicators that<br />
differentiate various forms <strong>of</strong> MCI and enable the diagno-sis <strong>of</strong> <strong>in</strong>cipient<br />
AD.<br />
PROJECT 4. Validation <strong>of</strong> a comprehensive diagnostic protocol based on<br />
the results obta<strong>in</strong>ed <strong>in</strong> the above studies, <strong>in</strong> a series <strong>of</strong> Alzheimer<br />
Evaluation Units <strong>of</strong> Lombardia Region, and estimation <strong>of</strong> costs and<br />
benefits <strong>of</strong> its transfer to the NHS.
Nome Pr<strong>of</strong>. Paolo Maria Ross<strong>in</strong>i<br />
Contatti<br />
Email: paolomaria.ross<strong>in</strong>i@afar.it<br />
Istituto/Dipartimento Neurology, University “Campus Biomedico”, Rome, Italy<br />
Proposta di ricerca<br />
Individual evaluation <strong>of</strong> cognitive decl<strong>in</strong>e: def<strong>in</strong>ition <strong>of</strong> a low-cost non-<strong>in</strong>vasive exam<strong>in</strong>ation battery and<br />
implementation <strong>of</strong> a predictive algorithm to identify Mild cognitive impairment.<br />
Area di <strong>in</strong>teresse identificata<br />
Mild cognitive impairment (MCI) is a state <strong>of</strong> the elderly bra<strong>in</strong><br />
affect<strong>in</strong>g a large number <strong>of</strong> <strong>in</strong>dividuals ma<strong>in</strong>ly characterized by memory<br />
impairment not yet encompass<strong>in</strong>g the def<strong>in</strong>ition <strong>of</strong> dementia and, <strong>in</strong> the<br />
majority <strong>of</strong> cases, represents a precursor <strong>of</strong> Alzheimers’ Disease (AD).<br />
Because <strong>of</strong> MCI’s prodromal qualities do not greatly impair daily<br />
function<strong>in</strong>g, MCI can be identified only by specific cl<strong>in</strong>ical and<br />
neuropsychological evaluation. With<strong>in</strong> such a theoretical frame a reliable<br />
marker <strong>of</strong> MCI-to-AD progression is not yet available, even if it would be<br />
highly desirable both for <strong>research</strong> and health system purposes. Ideally,<br />
these markers should be non-<strong>in</strong>vasive, widely available and <strong>of</strong> low-cost <strong>in</strong><br />
order to screen out large population samples. Along this l<strong>in</strong>e a<br />
comb<strong>in</strong>ation <strong>of</strong> neurophysiological (electroencephalography, transcranial<br />
magnetic stimulation), blood chemistries (<strong>in</strong>clud<strong>in</strong>g metals, pro- and<br />
antioxidant compounds) and genetics are a potential candidate. . In this<br />
way we have collected numerous studies (1-10). The l<strong>in</strong>e <strong>of</strong> <strong>research</strong> we<br />
are <strong>in</strong>terested <strong>in</strong> focuses on the study <strong>of</strong> healthy subjects and patients<br />
(suffer<strong>in</strong>g from MCI, AD and vascular dementia – VaD-) by means <strong>of</strong> this<br />
multidimensional <strong>in</strong>vestigation and will try to identify prognostic <strong>in</strong>dexes<br />
able to predict the risk <strong>of</strong> conversion from MCI to AD.<br />
References: 1.Babiloni C, Frisoni GB, Vecchio F, Pievani M, Geroldi<br />
C, De Carli C, Ferri R, Vernieri F, Lizio R, Ross<strong>in</strong>i PM Global functional<br />
coupl<strong>in</strong>g <strong>of</strong> rest<strong>in</strong>g EEG rhythms is related to white-matter lesions along<br />
the chol<strong>in</strong>ergic tracts <strong>in</strong> subjects with amnesic mild cognitive impairment.<br />
J Alzheimers Dis. 2010 Jan;19(3):859-71.<br />
2.Moretti DV, Frisoni GB, Fracassi C, Pievani M, Geroldi C, B<strong>in</strong>etti<br />
G, Ross<strong>in</strong>i PM, Zanetti O. MCI patients' EEGs show group differences<br />
between those who progress and those who do not progress to<br />
AD.Neurobiol Ag<strong>in</strong>g. 2009 Dec 16. [Epub ahead <strong>of</strong> pr<strong>in</strong>t]<br />
3. Babiloni C, Frisoni GB, Vecchio F, Pievani M, Geroldi C, De Carli<br />
C, Ferri R, Vernieri F, Lizio R, Ross<strong>in</strong>i PM. Global Functional Coupl<strong>in</strong>g <strong>of</strong><br />
Rest<strong>in</strong>g EEG Rhythms is Related to White-Matter Lesions Along the<br />
Chol<strong>in</strong>ergic Tracts <strong>in</strong> Subjects with Amnesic Mild Cognitive Impairment. J<br />
Alzheimers Dis. 2009 Nov 17. [Epub ahead <strong>of</strong> pr<strong>in</strong>t]<br />
4. Moretti DV, Pievani M, Geroldi C, B<strong>in</strong>etti G, Zanetti O, Cotelli<br />
M, Ross<strong>in</strong>i PM, Frisoni GB.<br />
Increas<strong>in</strong>g hippocampal atrophy and cerebrovascular damage is<br />
differently associated with functional cortical coupl<strong>in</strong>g <strong>in</strong> MCI patients.<br />
Alzheimer Dis Assoc Disord. 2009 Oct-Dec;23(4):323-32.<br />
5. Moretti DV, Pievani M, Geroldi C, B<strong>in</strong>etti G, Zanetti O, Ross<strong>in</strong>i
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
PM, Frisoni GB.<br />
EEG markers discrim<strong>in</strong>ate among different subgroup <strong>of</strong> patients with mild<br />
cognitive impairment. Am J Alzheimers Dis Other Demen. 2010<br />
Feb;25(1):58-73. Epub 2009 Feb 9.<br />
6. Moretti DV, Fracassi C, Pievani M, Geroldi C, B<strong>in</strong>etti G, Zanetti<br />
O, Sosta K, Ross<strong>in</strong>i PM, Frisoni GB. Increase <strong>of</strong> theta/gamma ratio is<br />
associated with memory impairment. Cl<strong>in</strong> Neurophysiol. 2009<br />
Feb;120(2):295-303. Epub 2009 Jan 1.<br />
7. Babiloni C, Pievani M, Vecchio F, Geroldi C, Eusebi F, Fracassi C,<br />
Fletcher E, De Carli C, Boccardi M, Ross<strong>in</strong>i PM, Frisoni GB. White-matter<br />
lesions along the chol<strong>in</strong>ergic tracts are related to cortical sources <strong>of</strong> EEG<br />
rhythms <strong>in</strong> amnesic mild cognitive impairment. Hum Bra<strong>in</strong> Mapp. 2009<br />
May;30(5):1431-43.<br />
8. Babiloni C, Visser PJ, Frisoni G, De Deyn PP, Bresciani L, Jelic V,<br />
Nagels G, Rodriguez G, Ross<strong>in</strong>i PM, Vecchio F, Colombo D, Verhey F,<br />
Wahlund LO, Nobili F. Cortical sources <strong>of</strong> rest<strong>in</strong>g EEG rhythms <strong>in</strong> mild<br />
cognitive impairment and subjective memory compla<strong>in</strong>t. Neurobiol Ag<strong>in</strong>g.<br />
2008 Nov 20. [Epub ahead <strong>of</strong> pr<strong>in</strong>t]<br />
9 Moretti DV, Pievani M, Fracassi C, Geroldi C, Calabria M, De<br />
Carli CS, Ross<strong>in</strong>i PM, Frisoni GB. Bra<strong>in</strong> vascular damage <strong>of</strong> chol<strong>in</strong>ergic<br />
pathways and EEG markers <strong>in</strong> mild cognitive impairment. J Alzheimers<br />
Dis. 2008 Nov;15(3):357-72.<br />
10. Ross<strong>in</strong>i PM, Buscema M, Capriotti M, Grossi E, Rodriguez G, Del Percio<br />
C, Babiloni C. Is it possible to automatically dist<strong>in</strong>guish rest<strong>in</strong>g EEG data <strong>of</strong><br />
normal elderly vs. mild cognitive impairment subjects with high degree <strong>of</strong><br />
accuracy? Cl<strong>in</strong> Neurophysiol. 2008 Jul;119(7):1534-45. Epub 2008 May 15.<br />
Is it possible to automatically dist<strong>in</strong>guish rest<strong>in</strong>g EEG data <strong>of</strong> normal<br />
elderly vs. mild cognitive impairment subjects with high degree <strong>of</strong><br />
accuracy?<br />
AFaR, Associazione Fatebenefratelli per Ricerca Biomedica e Sanitaria<br />
2005-2006; 2006-2007; 2007-2008; 2008-2009; 2009-2010<br />
To explore if Implicit function as squash<strong>in</strong>g time (IFAST) based<br />
electroencephalographic (EEG) can reliably dist<strong>in</strong>guish <strong>of</strong> mild cognitive<br />
impairment (MCI) and Alzheimer's disease (AD) subjects with
Nome ORAZIO ZANETTI<br />
Contatti<br />
TEL 030 3501 358<br />
Email: ozanetti@fatebenefratelli.it<br />
Istituto/Dipartimento U.O.Alzheimer-Centro per la Memoria<br />
IRCCS Centro S.Giovanni di Dio-Fatebenefratelli, Brescia<br />
Proposta di ricerca<br />
Nell’agosto 2007 un gruppo di studiosi ha proposto nuovi criteri diagnostici per la diagnosi di malattia di<br />
Alzheimer (AD) prodromica o precl<strong>in</strong>ica (Dubois et al.:Research criteria for the diagnosis <strong>of</strong> Alzheimer's<br />
disease: revis<strong>in</strong>g the NINCDS-ADRDA criteria. Lancet Neurol. 2007 Aug;6(8):734-46.) <strong>in</strong>corporando, oltre ai<br />
dati anamnestici, cl<strong>in</strong>ici e neurospicologici l’utilità di marker neuroradiologici (atr<strong>of</strong>ia ippocampale o<br />
ipoperfusione temporo-parietale alla PET), e liquorali (riduzione della prote<strong>in</strong>a ABeta 42 ed aumento di<br />
TAU). Dal luglio 2006 è attivo presso l’IRCCS S.Giovanni di Dio Fatebenefratelli un Ambulatorio<br />
Traslazionale per la Memoria (ATM) che co<strong>in</strong>volge tutte le Unità Operative cl<strong>in</strong>iche e di ricerca dell’Istituto<br />
al f<strong>in</strong>e di <strong>of</strong>frire, soprattutto ai pazienti lievi un percorso diagnostico <strong>in</strong> grado di rispondere<br />
all’<strong>in</strong>terrogativo ciclopico, con risvolti laceranti, che ci veniva posto: “vorrei sapere se ho o non ho la<br />
malattia di Alzheimer”. Nell’arco di 12 mesi sono stati valutati 144 pazienti consecutivamente afferiti all’<br />
ATM, divisi <strong>in</strong> quattro gruppi sulla base della diagnosi cl<strong>in</strong>ica (utilizzando i noti criteri diagnostici NINCDS-<br />
ADRDA per la AD): 12 pazienti sono affetti da disturbo soggettivo di memoria (SMC, MMSE 28.0±1.1); 37<br />
da “mild cognitive impairment” (MCI, MMSE 25.1±3.6), 55 da malattia di Alzheimer (MMSE 21.1±3.5), e 40<br />
da demenze non Alzheimer (MMSE 21.6±5.5)(Vedi tabella). A tutti i pazienti sono state proposte le<br />
seguenti <strong>in</strong>dag<strong>in</strong>i: 1) la volumetria ippocampale alla MR; 2) l’analisi visiva della PET con<br />
fluorodesossiglucosio; 3) la concentrazione di Tau totale e di Abeta1-42 sul liquor cerebrosp<strong>in</strong>ale.<br />
La sensibilità di ogni marker è più elevata (43 to 71%) per la malattia di Alzheimer rispetto all’ MCI (18 to<br />
31%). La specificità dei marker rispetto a SMC e demenze non Alzheimer è risultata buona, essendo<br />
superiore al’ 83% ed al 69% rispettivamente. La positività di almeno un marker presenta un’elevata<br />
sensibilità per la AD ed un’elevata specificità per il SMC. L’utilizzo di un numero maggiore di marker (due o<br />
tre) contemporaneamente aumenta notevolmente la specificità diagnostica a scapito però della sensibilità.<br />
In conclusione i marker recentemente proposti per la diagnosi precoce di malattia di Alzheimer possono<br />
essere di utilità nella pratica cl<strong>in</strong>ica. La valutazione longitud<strong>in</strong>ale consentirà di valutare meglio il loro<br />
“valore aggiunto” rispetto alla tradizionale diagnosi che si fonda prevalentemente sull’<strong>in</strong>dag<strong>in</strong>e cl<strong>in</strong>ica<br />
corroborata da una semplice TAC encefalica. Per un oculato impiego delle risorse e delle nuove tecnologie<br />
è <strong>in</strong>fatti importante stabilire con precisione quali siano i pazienti (verosimilmente coloro con un disturbo<br />
cognitivo molto lieve) che maggiormente possono trarre vantaggi da una procedura diagnostica complessa
e costosa.<br />
Area di <strong>in</strong>teresse identificata<br />
F<strong>in</strong>anziamenti ricevuti – € 20.000<br />
(Programma strategico 2006)<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
Impiego dei makers biologici e neuro radiologici nella diagnosi<br />
differenziale precoce<br />
Strumenti e procedure diagnostiche per le demenze utilizzabili nella<br />
cl<strong>in</strong>ica ai f<strong>in</strong>i della diagnosi differenziale precoce<br />
M<strong>in</strong>istero della Salute – Programma strategico 2006-<br />
triennale
Nome Sandro Sorbi<br />
Contatti<br />
Istituto/Dipartimento<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse identificata<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
sorbi@unifi.it<br />
tel +390554298465<br />
Dept. <strong>of</strong> Neurological and Psychiatric Sciences, University <strong>of</strong> Florence,<br />
Italy<br />
Research <strong>in</strong> the field <strong>of</strong> ag<strong>in</strong>g and dementia is focus<strong>in</strong>g on the<br />
characterization <strong>of</strong> the early stages <strong>of</strong> cognitive decl<strong>in</strong>e. It has been<br />
suggested that many patients with Mild cognitive impairment (MCI)<br />
represents already not recognized AD patients. The purpose <strong>of</strong> the<br />
<strong>research</strong> is to identify tools and diagnostic procedures that can identify<br />
early stages <strong>of</strong> the disease. We will study the various doma<strong>in</strong>s <strong>in</strong> order to:<br />
a) Diagnose and characterize demented patients for a proper<br />
classification <strong>of</strong> the forms <strong>of</strong> dementia (Alzheimer's disease, fronto<br />
temporal dementia, FTD, dementia with motor signs such as Lewy body<br />
disease and others) b) Diagnose and characterize patients with Mild<br />
Cognitive Impairement c) To study the neuropsychological aspects to<br />
identified early MCI patients, both multi doma<strong>in</strong> and amnesic MCI. d)<br />
Analyze the genetic patient pr<strong>of</strong>ile to identify the genetic risk factors<br />
<strong>in</strong>volved <strong>in</strong> the development and progression <strong>of</strong> AD.<br />
The study <strong>of</strong> genetic factors for AD will be performed <strong>in</strong> patients with<br />
familial forms <strong>of</strong> dementia and <strong>in</strong> patients with MCI. In addition<br />
neuropsychological and neuroimag<strong>in</strong>g evaluations will be performed for<br />
each patients. The study will be divided <strong>in</strong>to the follow<strong>in</strong>g phases: -<br />
analysis <strong>of</strong> autosomal dom<strong>in</strong>ant genetic mutations: new families affected<br />
by AD will be identified and characterized cl<strong>in</strong>ically and genetically. The<br />
goal will be to identify new causative mutations. the Initial screen<strong>in</strong>g <strong>of</strong><br />
molecular diagnosis will be a detailed genetic screen<strong>in</strong>g <strong>of</strong> the genes<br />
associated with familial form <strong>of</strong> the disease, presenil<strong>in</strong>s (PS-1 and PS-2)<br />
and the amyloid precursor prote<strong>in</strong> (APP) - Search for other possible<br />
factors <strong>of</strong> genetic susceptibility will be performed on both familial and<br />
sporadic AD patients. It will be studied allelic variations <strong>of</strong> genes<br />
potentially <strong>in</strong>volved <strong>in</strong> chromosomal regions <strong>of</strong> <strong>in</strong>terest. It will also be<br />
carried out the study <strong>of</strong> Apolipoprote<strong>in</strong> E genotype (ApoE), considered<br />
today the only susceptibility factor associated with the disease.<br />
“Strumenti e procedure diagnostiche per le demenze utilizzabili nella<br />
cl<strong>in</strong>ica ai f<strong>in</strong>i della diagnosi precoce e differenziale, della <strong>in</strong>dividuazione<br />
delle forme a rapida o lenta progressione e delle forme con risposta<br />
ottimale alle attuali terapie”<br />
MINISTERO DELLA SALUTE , RICERCA FINALIZZATA 2006
Durata progetto<br />
Abstract del progetto<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse identificata<br />
6/1/2008-6/4/2010<br />
The ma<strong>in</strong> aim <strong>of</strong> the project is to <strong>in</strong>tegrate the results <strong>of</strong> neurocognitive,<br />
neuropsychological, neuroimag<strong>in</strong>g and genetic studies as markers for the<br />
differential diagnosis <strong>of</strong> early dementia.<br />
GENETIC STUDY ON ALZHEIMER'S DISEASE AND THE INVOLVEMENT OF<br />
OTHER NON-GENETIC FACTORS THAT MAY INFLUENCE THE CLINICAL<br />
EXPRESSION OF THE DISEASE<br />
Progetto di ricerca scientifica d'Ateneo (ex quota 60%)<br />
2009-2010<br />
GENETIC STUDY ON ALZHEIMER'S DISEASE<br />
"Analisi dei fattori genetici co<strong>in</strong>volti nelle malattie neurodegenerative:<br />
Utilizzo e applicazione di tecnologie di avanguardia per lo studio della<br />
malattia di Alzheimer, della demenza frontotemporale e della malattia di<br />
Park<strong>in</strong>son" /*<br />
COMPAGNIA SAN PAOLO<br />
2008-2010<br />
GENETIC STUDY ON ALZHEIMER'S DISEASE<br />
Aim <strong>of</strong> the study is to determ<strong>in</strong>e the cl<strong>in</strong>ical and genetic features <strong>of</strong><br />
movement disorders <strong>in</strong> patient affected by dementia and the cl<strong>in</strong>ical<br />
features <strong>of</strong> cognitive decl<strong>in</strong>e <strong>in</strong> patients affected by movement disorders.<br />
All the patients recruited will be assessed at basel<strong>in</strong>e and dur<strong>in</strong>g the<br />
follow-up with selected cl<strong>in</strong>ical scales and neuropsychological tests.<br />
Beyond movement disorder and cognitive deficit, attention will be paid to<br />
behavioural disturbances, mood disorders and impulse control disorders<br />
<strong>in</strong> these patients.<br />
Patients with a familial history <strong>of</strong> movement disorders or dementia will<br />
undergo genetic analysis on the genes implicated <strong>in</strong> autosomal dom<strong>in</strong>ant<br />
forms <strong>of</strong> Park<strong>in</strong>son disease <strong>in</strong>clud<strong>in</strong>g PARK1, PARK4, SNCA and LRRK2.<br />
All the patients recruited will be submitted to FP-CIT-SPECT <strong>in</strong> order to<br />
verify and to measure the presence <strong>of</strong> nigrostriatal pathway
C. Nome<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
Flavio Nobili, Guido Rodriguez<br />
degeneration.<br />
We plan to enrol 50-100 patients affected by those neurodegenerative<br />
disorders that may be characterized by movement disorders and<br />
cognitive decl<strong>in</strong>e: Park<strong>in</strong>son’s disease, Alzheimer’s disease with<br />
park<strong>in</strong>sonism, Frontotemporal dementia, Lewy body disease, vascular<br />
dementia, corticobasal degeneration and progressive supranuclear palsy.<br />
“ Epidemiologia e sviluppo di strumenti di <strong>in</strong>tegrazione socio-sanitaria<br />
nella gestione dei pazienti affetti da Malattia di Park<strong>in</strong>son e da altre<br />
malattie degenerative con concomitante disturbo motorio e decl<strong>in</strong>o<br />
cognitivo”<br />
MINISTERO DELLA SALUTE, RICERCA FINALIZZATA 2007<br />
12/2009-12/2010<br />
Ma<strong>in</strong> aim <strong>of</strong> the project is to analyze and develop <strong>in</strong> detail the natural<br />
history <strong>of</strong> Park<strong>in</strong>son's disease and Park<strong>in</strong>sonism due to cognitive decl<strong>in</strong>e<br />
and behavioural disturbances. Epidemiological study is <strong>of</strong> fundamental<br />
importance <strong>in</strong> develop<strong>in</strong>g diagnostic and therapeutic strategies and new<br />
methods <strong>of</strong> <strong>in</strong>tegrat<strong>in</strong>g social and health care.<br />
In particular we will identify and recruit <strong>in</strong>dividuals with Park<strong>in</strong>son's<br />
disease and classical subjects with park<strong>in</strong>sonism l<strong>in</strong>ked to cognitive<br />
decl<strong>in</strong>e, it will estimate the <strong>in</strong>cidence <strong>of</strong> dementia <strong>in</strong> the two types <strong>of</strong><br />
disturbances. Will be performed genetic analysis <strong>of</strong> genes related to<br />
Park<strong>in</strong>son's disease <strong>in</strong> people with familiarity with the disease. All<br />
patients will undergo a battery <strong>of</strong> standardized tests (Unified Park<strong>in</strong>son's<br />
Disease Rat<strong>in</strong>g Scale and Hoehn and Yahr and neuropsychological tests)<br />
and FP-CIT-SPECT imag<strong>in</strong>g.
Contatti<br />
Flaviomariano.nobili@hsanmart<strong>in</strong>o.it; guido@unige.it<br />
Tel: 010 3537568; Fax: 010 5556893; cell: 333 8331613<br />
Istituto/Dipartimento Neur<strong>of</strong>isiologia Cl<strong>in</strong>ica, Dip. di Neuroscienze, Oftalmologia e Genetica,<br />
Università di Genova<br />
Proposta di ricerca<br />
A. ‘A multimodality <strong>in</strong>dex for the early diagnosis <strong>of</strong> Alzheimer’s disease’<br />
Area di <strong>in</strong>teresse identificata<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Early diagnosis<br />
‘Descripa’ (http://www.descripa.eu/)<br />
EU FP-5<br />
4 years<br />
The DESCRIPA study aims to develop screen<strong>in</strong>g guidel<strong>in</strong>es and cl<strong>in</strong>ical<br />
criteria for Alzheimer’s disease <strong>in</strong> non-demented subjects. The cl<strong>in</strong>ical<br />
criteria will be based on a prospective cohort study <strong>of</strong> non-demented<br />
subjects from a memory cl<strong>in</strong>ic. The screen<strong>in</strong>g guidel<strong>in</strong>es will be based on<br />
a meta-analysis <strong>of</strong> prospective population-based cohort studies <strong>in</strong><br />
Europe.<br />
‘ICTUS’ (Neuroepidemiology. 2007;29(1-2):29-38.)<br />
EU FP-5<br />
3 years<br />
Observational study <strong>of</strong> cognitive and behavioural effects <strong>of</strong><br />
acetylchol<strong>in</strong>esterase <strong>in</strong>hibitors <strong>in</strong> patients with mild to moderate<br />
Alzheimer’s disease<br />
‘Descripa’ (http://www.descripa.eu/)<br />
EU FP-5<br />
4 years<br />
Abstract del progetto The DESCRIPA study aims to develop screen<strong>in</strong>g guidel<strong>in</strong>es and cl<strong>in</strong>ical<br />
criteria for Alzheimer’s disease <strong>in</strong> non-demented subjects. The cl<strong>in</strong>ical<br />
criteria will be based on a prospective cohort study <strong>of</strong> non-demented<br />
subjects from a memory cl<strong>in</strong>ic. The screen<strong>in</strong>g guidel<strong>in</strong>es will be based on<br />
a meta-analysis <strong>of</strong> prospective population-based cohort studies <strong>in</strong><br />
Europe.<br />
Titolo progetto ‘ICTUS’ (Neuroepidemiology. 2007;29(1-2):29-38.)
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
EU FP-5<br />
3 years<br />
Observational study <strong>of</strong> cognitive and behavioural effects <strong>of</strong><br />
acetylchol<strong>in</strong>esterase <strong>in</strong>hibitors <strong>in</strong> patients with mild to moderate<br />
Alzheimer’s disease<br />
BACKGROUND. Dur<strong>in</strong>g the last decade, there has been a great effort to improve diagnostic accuracy <strong>of</strong><br />
Alzheimer’s disease (AD) s<strong>in</strong>ce the earliest stages. The ma<strong>in</strong> advances have been observed with<br />
morphological Magnetic Resonance (MR) and functional (FDG-PET) bra<strong>in</strong> imag<strong>in</strong>g, and with Cereborsp<strong>in</strong>al<br />
fluid (CSF) assays <strong>of</strong> Tau prote<strong>in</strong> and β amyloid fragments. The accuracy <strong>of</strong> these tools is rather good when<br />
compar<strong>in</strong>g patients with overt AD dementia versus healthy controls, but decreases <strong>in</strong> the very early stages<br />
<strong>of</strong> the disease. In these stages, the subjects still ma<strong>in</strong>ta<strong>in</strong> full autonomy <strong>in</strong> everyday life, but subtle deficit <strong>in</strong><br />
memory and/or other cognitive doma<strong>in</strong>s can already be shown by cognitive tests (Mild Cognitive<br />
Impairment, MCI). Moreover, some patients compla<strong>in</strong> <strong>of</strong> memory disturbances that cannot be confirmed<br />
by cognitive assessments (subjective memory compla<strong>in</strong>ts, SMC) but that may sometimes be prodromic <strong>of</strong><br />
AD.<br />
Pharmacological <strong>research</strong> is currently very active <strong>in</strong> try<strong>in</strong>g to identify drugs that can modify the<br />
natural course <strong>of</strong> the disease (‘disease-modify<strong>in</strong>g’). While they are tested ma<strong>in</strong>ly <strong>in</strong> overt AD dementia at<br />
present, it is obvious that effective drugs will be used as soon as possible <strong>in</strong> the course <strong>of</strong> the disease, i.e.,<br />
at the MCI stage, or even earlier.<br />
Thus, an early diagnosis is <strong>of</strong> paramount importance to start effective treatment as soon as these<br />
drugs will be available. Yet, <strong>in</strong>dividual diagnostic accuracy <strong>of</strong> functional and morphological neuroimag<strong>in</strong>g<br />
and CSF assays <strong>in</strong> these early stages is not fully satisfactory versus healthy controls but even more versus<br />
the other commonest forms <strong>of</strong> dementia, such as dementia with Lewy bodies (DLB), frontotemporal<br />
dementia (FTD) and vascular dementia (VaD). The more recent amyloid PET imag<strong>in</strong>g has added value to<br />
neuroimag<strong>in</strong>g, show<strong>in</strong>g very high sensitivity but limited specificity versus healthy controls, DLB and<br />
Park<strong>in</strong>son’s disease dementia.<br />
The reasons <strong>of</strong> <strong>in</strong>complete accuracy are complex and partially understood. Genetic heterogeneity,<br />
environmental factors, and phenotipic variants <strong>of</strong> AD may expla<strong>in</strong> <strong>in</strong>complete sensitivity on the one hand.<br />
On the other hand, overlapp<strong>in</strong>g atrophy, hypometabolic and biochemical patterns with FTD, DLB and VaD<br />
may account for <strong>in</strong>complete specificity <strong>of</strong> MR, PET, and CSF assays, respectively.<br />
The idea that the ‘shadow’ area <strong>of</strong> each diagnostic tool could be 'unmasked' by the other tools has<br />
moved <strong>research</strong>ers to jo<strong>in</strong> together the data deriv<strong>in</strong>g from more than one modality. Some work has already<br />
been done, show<strong>in</strong>g an <strong>in</strong>crease accuracy when two exam<strong>in</strong>ations are employed together. In this context,<br />
the ‘core’ cognitive deficit <strong>of</strong> AD, i.e., verbal episodic memory delayed recall, has also been <strong>in</strong>cluded.<br />
Previous attempts to obta<strong>in</strong> comb<strong>in</strong>ation <strong>in</strong>dexes <strong>in</strong>clude neuropsychology and PET (1-2), neuropsychology,<br />
PET and Apolipoprote<strong>in</strong> E (ApoE) genotype (3), neuropsychology and MR imag<strong>in</strong>g (4), S<strong>in</strong>gle Photon<br />
Emission Computed Tomography (SPECT) and MR imag<strong>in</strong>g (5), CSF markers and SPECT (6). However, the<br />
data are still largely <strong>in</strong>complete, especially regard<strong>in</strong>g the very early stages <strong>of</strong> the disease.<br />
AIM. To test the hypothesis that jo<strong>in</strong><strong>in</strong>g together the <strong>in</strong>formation deriv<strong>in</strong>g from MR and FDG-PET imag<strong>in</strong>g,<br />
memory tests, CSF assays and genetic predispos<strong>in</strong>g factors (such as the ApoE genotype) can improve<br />
diagnostic accuracy <strong>in</strong> patients with AD dementia at the MCI stage. A s<strong>in</strong>gle <strong>in</strong>dex could be achieved with<br />
<strong>in</strong>tegrated accuracy deriv<strong>in</strong>g from each tool.<br />
METHODS. Patients. A multicentric approach is needed to reach large patient series <strong>in</strong> a limited time.<br />
Patients with MCI <strong>of</strong> the amnestic type (aMCI), as well as age-matched healthy controls, should be<br />
recruited by Centres with proven expertise <strong>in</strong> dementia diagnosis and management. These subjects should<br />
undergo full neuropsychological exam<strong>in</strong>ation (common m<strong>in</strong>imum battery to be agreed), MR imag<strong>in</strong>g, and
FDG-PET. CSF assays are performed <strong>in</strong> MCI patients and <strong>in</strong> that part <strong>of</strong> healthy controls giv<strong>in</strong>g the <strong>in</strong>formed<br />
consent for this <strong>in</strong>vasive procedure, provid<strong>in</strong>g Ethic Committees approve this manoeuvre <strong>in</strong> healthy<br />
subjects. Adm<strong>in</strong>istration <strong>of</strong> radiopharmaceuticals to healthy subjects must also be allowed by Ethic<br />
Committees and by the National Authority govern<strong>in</strong>g radiation exposure to healthy subjects for <strong>research</strong><br />
purposes.<br />
Then, both patients and controls are regularly followed by means <strong>of</strong> cl<strong>in</strong>ical and neuropsychological<br />
exam<strong>in</strong>ations on yearly basis for at least three years to pick up those MCI patients match<strong>in</strong>g the current<br />
criteria for the diagnosis <strong>of</strong> AD or other dementias. Other study groups are represented by patients<br />
affected with FTD, VaD or LBD <strong>in</strong> a mild stage (i.e., MMSE score >20), recruited by the same centres,<br />
follow<strong>in</strong>g the <strong>in</strong>ternationally accepted guidel<strong>in</strong>es.<br />
Image analysis. Several s<strong>of</strong>tware are available to automatically segment the whole bra<strong>in</strong> or specific bra<strong>in</strong><br />
regions, such as the hippocampus and the <strong>in</strong>ferior parietal lobule, that better dist<strong>in</strong>guish AD patients and<br />
controls. These s<strong>of</strong>tware can either run both MR and PET images (such as Statistical parametric <strong>Mapp<strong>in</strong>g</strong>,<br />
SPM) or specifically one <strong>of</strong> the two (such as the boundary shift <strong>in</strong>tegral for MR and ‘Neurostat’ for PET). As<br />
for MR images, the output could be a volumetric <strong>in</strong>dex. The same applies to FDG-PET where a metabolic<br />
<strong>in</strong>dex can be automatically computed. For both MR and PET, other <strong>in</strong>dexes express<strong>in</strong>g the probability to<br />
have maximum or m<strong>in</strong>imum atrophy/hypometabolism versus a control group can be computed.<br />
Statistical analysis. Statistics should rely on a multidimensional approach able to identify the best<br />
comb<strong>in</strong>ation <strong>of</strong> <strong>in</strong>dexes that dist<strong>in</strong>guish between AD patients (at MCI stage) and either healthy controls or<br />
DLB, FTD, and VaD, respectively. Stepwise and discrim<strong>in</strong>ant approaches are favourites.<br />
EXPECTED RESULTS. An <strong>in</strong>dex able to discrim<strong>in</strong>ate AD from healthy controls and from the other<br />
commonest foms <strong>of</strong> dementia with very high accuracy, i.e., >95%. This <strong>in</strong>dex should work, even if with a<br />
more limited accuracy, <strong>in</strong> those cases where just some <strong>of</strong> the requested <strong>in</strong>formation is available, for<br />
<strong>in</strong>stance just with neuropsychology, ApoE, MR and PET images, without CSF biomarkers. Once established,<br />
such an <strong>in</strong>dex may be applied also to subjects with SMC to unveil AD pathology, as well as to screen<br />
population at high risk <strong>of</strong> AD, such as direct relatives <strong>of</strong> AD patients.<br />
REFERENCES. (1) Anchisi D, et al. Heterogeneity <strong>of</strong> bra<strong>in</strong> glucose metabolism <strong>in</strong> mild cognitive impairment<br />
and cl<strong>in</strong>ical progression to Alzheimer disease. Arch Neurol 2005;62:1728-33. (2) Nobili F, et al. Pr<strong>in</strong>cipal<br />
component analysis <strong>of</strong> FDG PET <strong>in</strong> amnestic MCI. Eur J Nucl Med Mol Imag<strong>in</strong>g 2008;35:2191-2202. (3)<br />
Mosconi L, et al. MCI conversion to dementia and the APOE genotype. A prediction study with FDG-PET.<br />
Neurology 2004;63:2332-40. (4) Visser PJ, et al. Medial temporal lobe atrophy and memory dysfunction as<br />
predictors for dementia <strong>in</strong> subjects with mild cognitive impairment. J Neurol 1999;246:477-85. (5) El Fakhri<br />
G, et al. MRI-guided SPECT perfusion measures and volumetric MRI <strong>in</strong> prodromal Alzheimer disease. Arch<br />
Neurol. 2003;60:1066-72. (6) Okamura N et al. Comb<strong>in</strong>ed Analysis <strong>of</strong> CSF Tau Levels and<br />
[(123)I]Iodoamphetam<strong>in</strong>e SPECT <strong>in</strong> Mild Cognitive Impairment: Implications for a Novel Predictor <strong>of</strong><br />
Alzheimer's Disease. Am J Psychiatry. 2002;159:474-6. (7) Barnes J, et al. Automatic calculation <strong>of</strong><br />
hippocampal atrophy rates us<strong>in</strong>g a hippocampal template and the boundary shift <strong>in</strong>tegral. Neurobiol Ag<strong>in</strong>g.<br />
2007;28:1657-63. (8) Ishii K, et al. Statistical bra<strong>in</strong> mapp<strong>in</strong>g <strong>of</strong> 18F-FDG PET <strong>in</strong> Alzheimer's disease:<br />
validation <strong>of</strong> anatomic standardization for atrophied bra<strong>in</strong>s. J Nucl Med. 2001;42:548-57.
Nome Pr<strong>of</strong>essor Paolo Caffarra, M.D.<br />
Contatti<br />
e-mail: paolo.caffarra@unipr.it<br />
phone/fax: 0039-0521-704116<br />
Istituto/Dipartimento Department <strong>of</strong> Neuroscience<br />
University <strong>of</strong> Parma<br />
Via Gramsci 14<br />
43100 Parma<br />
Italy<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse identificata<br />
The need <strong>of</strong> an early diagnosis is essential for promot<strong>in</strong>g a strategic<br />
pharmacological and non-pharmacological <strong>in</strong>tervention on Alzheimer’s<br />
disease (AD). The identification <strong>of</strong> cognitive and neurobiological<br />
markers which might represent salient pre-cl<strong>in</strong>ical predictors <strong>of</strong> the<br />
<strong>in</strong>surgence <strong>of</strong> AD is essential nowadays. Our <strong>research</strong> focuses on the<br />
discovery <strong>of</strong> cognitive <strong>in</strong>struments useful for a differential diagnosis <strong>of</strong><br />
AD, such as memory and executive tasks, and neuroimag<strong>in</strong>g markers<br />
us<strong>in</strong>g different techniques, such as magnetic resonance imag<strong>in</strong>g (MRI)<br />
and positron emission tomography (PET). Recently, we have set up an<br />
<strong>in</strong>novative and computerized experimental procedure to score semantic<br />
abilities <strong>in</strong> patients suffer<strong>in</strong>g from Mild Cognitive Impairment (MCI) and<br />
mild AD (Arango-Lasprilla et al., 2007; Ahmed et al., 2008) , <strong>in</strong>vestigat<strong>in</strong>g<br />
also the functional and metabolic neural substrates us<strong>in</strong>g MRI and F 18 -<br />
FDG-PET. Different aspects <strong>of</strong> structural MRI will be observed, such as<br />
volumetric analysis, diffusion tensor imag<strong>in</strong>g (DTI), imag<strong>in</strong>g <strong>of</strong> default<br />
mode at rest and imag<strong>in</strong>g <strong>of</strong> the deposition <strong>of</strong> iron <strong>in</strong> memory-related<br />
critical bra<strong>in</strong> regions, i.e. hippocampus. In particular, the observation <strong>of</strong><br />
iron deposition <strong>in</strong> the bra<strong>in</strong> <strong>of</strong> patients at risk for AD, represents an<br />
<strong>in</strong>novative approach <strong>in</strong> the neuroimag<strong>in</strong>g field <strong>of</strong> dementia (D<strong>in</strong>g et al.,<br />
2009). F 18 -FDG-PET constitutes an effective technique <strong>in</strong> the monitor<strong>in</strong>g<br />
<strong>of</strong> early Alzheimer’s disease progression (Fouquet et al., 2009).<br />
Cognitive and neuroimag<strong>in</strong>g follow-up data will be <strong>in</strong>formative on the<br />
identification <strong>of</strong> specific possible markers <strong>of</strong> conversion (Devanand et<br />
al., 2007; McGeown et al., 2009). The role <strong>of</strong> the polymorphism <strong>of</strong> APOE<br />
is observed and correlated with cl<strong>in</strong>ical progression <strong>of</strong> the disease,<br />
cognitive performance and neuroimag<strong>in</strong>g pattern.<br />
References:<br />
Ahmed S, Arnold R, Thompson SA, Graham KS, Hodges JR. (2008).<br />
Nam<strong>in</strong>g <strong>of</strong> objects, faces and build<strong>in</strong>gs <strong>in</strong> mild cognitive impairment.<br />
Cortex, 44, 746-52.<br />
Arango-Lasprilla JC, Cuetos F, Valencia C, Uribe C, Lopera F. (2007).<br />
Cognitive changes <strong>in</strong> the precl<strong>in</strong>ical phase <strong>of</strong> familial Alzheimer's<br />
disease. J Cl<strong>in</strong> Exp Neuropsychol. 29, 892-900.<br />
Devanand DP, Pradhaban G, Liu X, Khandji A, De Santi S, Segal S,<br />
Rus<strong>in</strong>ek H, Pelton GH, Honig LS, Mayeux R, Stern Y, Tabert MH, de Leon<br />
MJ. (2007). Hippocampal and entorh<strong>in</strong>al atrophy <strong>in</strong> mild cognitive<br />
impairment: prediction <strong>of</strong> Alzheimer disease. Neurology, 68, 828-36.<br />
D<strong>in</strong>g B, Chen KM, L<strong>in</strong>g HW, Sun F, Li X, Wan T, Chai WM, Zhang H, Zhan<br />
Y, Guan YJ. (2009). Correlation <strong>of</strong> iron <strong>in</strong> the hippocampus with MMSE <strong>in</strong>
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
patients with Alzheimer's disease. J Magn Reson Imag<strong>in</strong>g, 29, 793-8.<br />
McGeown, W.J., Shanks, M.F., Forbes-McKay, K.E., Venneri, A. (2009).<br />
Patterns <strong>of</strong> bra<strong>in</strong> activity dur<strong>in</strong>g a semantic task differentiate normal<br />
ag<strong>in</strong>g from early Alzheimer's disease. Psychiatry Res., 173, 218-27.<br />
“CORRELATI FUNZIONALI E STRUTTURALI DELLE FUNZIONI COGNITIVE<br />
NELLA FASE PRE-CLINICA E CONCLAMATA DELLE DEMENZE<br />
DEGENERATIVE”<br />
Cassa di Risparmio di Parma e Piacenza<br />
24 mesi<br />
The present project aims to <strong>in</strong>vestigate the neurobiological substrates<br />
associated with the <strong>in</strong>surgence and progression <strong>of</strong> Alzheimer’s disease<br />
(AD). In particular, the attention will be focused on the study <strong>of</strong> bra<strong>in</strong><br />
regions more vulnerable and affected by AD pathology and responsible<br />
for AD symptoms, such as hippocampal, posterior c<strong>in</strong>gulate and parietal<br />
circuits <strong>in</strong>volved <strong>in</strong> memory function. The project will concentrate on the<br />
identification <strong>of</strong> dist<strong>in</strong>ct neur<strong>of</strong>unctional and structural pattern which<br />
characterize the different forms <strong>of</strong> dementia, <strong>in</strong> order to establish the<br />
effectiveness <strong>of</strong> neuroimag<strong>in</strong>g techniques <strong>in</strong> the diagnostic process <strong>of</strong><br />
dementia. Particular attention will be give on the study <strong>of</strong> neuroimag<strong>in</strong>g<br />
correlates <strong>of</strong> Mild Cognitive Impairment as this is considered a critical<br />
phase <strong>in</strong> the progression to dementia: the identification <strong>of</strong> typical precl<strong>in</strong>ical<br />
neuroimag<strong>in</strong>g markers <strong>of</strong> AD will provide the possibility to act an<br />
early and effective <strong>in</strong>tervention.
Nome Stefano F. Cappa<br />
Contatti<br />
Tel.<br />
E mail<br />
DIBIT via Olgett<strong>in</strong>a 58<br />
20132 Milano tel 0226434887<br />
cappa.stefano@hsr.it<br />
Istituto/Dipartimento Vita Salute University and<br />
San Raffaele Scientific Institute, Division <strong>of</strong> Neuroscience<br />
Proposta di ricerca.<br />
Our multi-discipl<strong>in</strong>ary reaserach unit, comb<strong>in</strong>es expertises from different backgrounds (neurology,<br />
neuropsychology, l<strong>in</strong>guistics, cognitive psychology, epistemology), with the general aim to <strong>in</strong>vestigate the<br />
neural mechanisms <strong>of</strong> language and high-order cognition. The experimental approaches <strong>in</strong>clude<br />
behavioural studies <strong>in</strong> normal subjects and <strong>in</strong> neurological patients, bra<strong>in</strong> imag<strong>in</strong>g us<strong>in</strong>g magnetic<br />
resonance techniques and positron emission tomography, and neurophysiological <strong>in</strong>vestigations based on<br />
evoked responses and transcranial magnetic stimulation. In the field <strong>of</strong> dementia we are lead<strong>in</strong>g a number<br />
<strong>of</strong> <strong>in</strong>vestigation <strong>in</strong> the areas <strong>of</strong> l<strong>in</strong>guistic function, memory and social neuroscience. Besides the theoretical<br />
<strong>in</strong>terest , these studies are <strong>of</strong> relevance for issues such as early diagnosis (<strong>in</strong> particular dist<strong>in</strong>ction from<br />
healthy ag<strong>in</strong>g), differential diagnosis among different causes <strong>of</strong> degenerative dementia, and assessment <strong>of</strong><br />
treatment effect. The studies are typically based on the development <strong>of</strong> <strong>in</strong>novative behavioural test<strong>in</strong>g<br />
procedures, comb<strong>in</strong>ed with multimodal imag<strong>in</strong>g, biomarkers and genetic <strong>in</strong>vestigations, and are largely<br />
based on collaboration amiong multiple cl<strong>in</strong>ical and <strong>research</strong> units, both with<strong>in</strong> the San Raffaele<br />
Foundation and with other national and <strong>in</strong>ternational <strong>in</strong>stitution.<br />
Area di <strong>in</strong>teresse identificata Cognitive neuroscience <strong>of</strong> dementia: cl<strong>in</strong>ical and theoretical aspects<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
The reseach has been supported by grants from the M<strong>in</strong>istry <strong>of</strong> Health,<br />
the MIUR, the EEC and Human Frontiers organization
Nome Daniela Perani<br />
Contatti<br />
Tel.<br />
E mail<br />
02-26432224 -2223<br />
daniela.perani@hsr.it<br />
Istituto/Dipartimento V-S San Raffaele University, Division <strong>of</strong> Neuroscienze and Nuclear<br />
Medic<strong>in</strong>e Dpt. San Raffaele Scientific Institute<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse identificata Studies are aimed at <strong>in</strong>vestigat<strong>in</strong>g with PET the bra<strong>in</strong> functional<br />
parameters and neurotransmission systems <strong>in</strong> neurological and<br />
psychiatric diseases :<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
18 F-FDG is used for the evaluation <strong>of</strong> bra<strong>in</strong> glucose metabolism and 11 C -<br />
PIB for amyloid deposition. Present protocols <strong>in</strong>clude dementias (AD and<br />
FTLD, LBD, PDD) <strong>in</strong> early and pre-cl<strong>in</strong>ical phase, <strong>in</strong>clud<strong>in</strong>g <strong>in</strong> Mild Cognitive<br />
Impairment.<br />
11 C-PK and its developed forms are used <strong>in</strong> the study <strong>of</strong><br />
neuro<strong>in</strong>flammation. Present protocols <strong>in</strong>clude Park<strong>in</strong>son’s disease and<br />
park<strong>in</strong>sonisms such as Lewy Body Dementia, prion diseases, and<br />
Amiotrophic Lateral Sclerosis. To this aim mathematical models for<br />
quantification <strong>of</strong> activity are under development.<br />
11 C-Raclopride and 11 C-Fe CIT for the study <strong>of</strong> dopam<strong>in</strong>ergic system.<br />
Present protocols <strong>in</strong>clude Park<strong>in</strong>son’s disease and park<strong>in</strong>sonisms,<br />
particularly <strong>in</strong> early phase. Voxel-based methods for automatic<br />
quantification are under study validation.<br />
11 C MP4 for measur<strong>in</strong>g the AchE activity, <strong>in</strong> AD and MCI subjects <strong>in</strong> order<br />
to obta<strong>in</strong> correlations between reduction <strong>of</strong> enzymatic activity and<br />
cognitive status. To this aim mathematical models for quantification <strong>of</strong><br />
activity are under development.<br />
11 C-MDL for 5HT2 seroton<strong>in</strong> receptors and 11 C-raclopride. Present<br />
protocols <strong>in</strong>clude psychiatric conditions such as obsessive compulsive<br />
disorders and depression<br />
11 C-FMZ for the evaluation <strong>of</strong> the gabaergic system. Present protocols<br />
<strong>in</strong>clude movement disorders such as dystonias (genetic and sporadic<br />
cases)<br />
1. Diagnosis by Statistical and Intelligent Systems (ICT 2009, 5.3).<br />
2. Molecular imag<strong>in</strong>g for the early diagnosis and monitor<strong>in</strong>g <strong>of</strong><br />
Alzheimer’s disease <strong>in</strong> old <strong>in</strong>dividuals with cognitive disturbances:
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
an ADNI-compatible prospective study.<br />
3. Identification <strong>of</strong> diagnostic biomarkers <strong>in</strong> Amyotrophic Lateral<br />
Sclerosis patients, and development <strong>of</strong> related computational<br />
methods.<br />
1. Comunità Europea<br />
2. M<strong>in</strong>istero della Sanità<br />
3. M<strong>in</strong>istero della Sanità<br />
1. 2010-2013<br />
2. 2010-2012<br />
3. 2008-2010<br />
1. Validazione di nuovi metodi voxel-based e pattern recognition<br />
per il neuroimag<strong>in</strong>g funzionale PET, SPECT e strutturale MRI nella<br />
diagnosi precoce e nella diagnosi differenziale delle malattie<br />
neuroddegenerative associate a demenza.<br />
2. Studio dei correlati neur<strong>of</strong>unzionali, anatomici e molecolari nel<br />
disturbi cognitivi lievi.<br />
3. Studio di biomarker <strong>in</strong> vitro e <strong>in</strong> vivo nella Sclerosi Laterale<br />
Amiotr<strong>of</strong>ica.
Nome Maurizio Popoli<br />
Contatti<br />
Tel.<br />
E mail<br />
Tel: +390250318361<br />
E-mail: maurizio.popoli@unimi.it<br />
Istituto/Dipartimento Center <strong>of</strong> Neuropharmacology, Department <strong>of</strong> Pharmacological Sciences,<br />
CEND, University <strong>of</strong> Milan<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse identificata 3C. Global proteomics <strong>of</strong> human fibroblasts for the identification <strong>of</strong><br />
early biomarkers for dementia and Alzheimer’s Disease<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
Identification <strong>of</strong> biomarkers for Alzheimer’s dementia: genomics and<br />
proteomics <strong>of</strong> neurodegeneration<br />
M<strong>in</strong>istero della Salute<br />
2004-2006<br />
Ma<strong>in</strong> object <strong>of</strong> the present project was the identification <strong>of</strong> genetic and<br />
biological markers for Mild Cognitive Impairment (MCI) <strong>in</strong> order to<br />
identify a strategy useful for an early diagnosis and for the <strong>in</strong>dividuation<br />
<strong>of</strong> subjects at risk for the development <strong>of</strong> Alzheimer’s disease.<br />
Neurodegeneration, physiological cerebral ag<strong>in</strong>g and dementia: an<br />
<strong>in</strong>tegrated approach for a early diagnosis, evolution predictors, and for an<br />
advanced care organization.<br />
M<strong>in</strong>istero della Sanità<br />
2000-2003<br />
Aim <strong>of</strong> this project was the <strong>in</strong>vestigation <strong>of</strong> biological, cellular, genetic<br />
and neurotoxic processes underl<strong>in</strong>g dementia for the identification and<br />
def<strong>in</strong>ition <strong>of</strong> predictive markers <strong>of</strong> pathology <strong>in</strong> the general population<br />
and <strong>in</strong> presence <strong>of</strong> risk factors.
Nome Gianfranco Spalletta<br />
Contatti<br />
Tel.<br />
E mail<br />
Via Ardeat<strong>in</strong>a, 306 -00179 Rome<br />
06-51501575<br />
g.spalletta@hsantalucia.it<br />
Istituto/Dipartimento IRCCS Santa Lucia Foundation/Department <strong>of</strong> Cl<strong>in</strong>ical and behavioral<br />
neurology - Neuropsychiatry laboratory<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse identificata Park<strong>in</strong>son disease and park<strong>in</strong>sonisms<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
Analysis <strong>of</strong> cognitive and neuropsychiatric disturbances <strong>in</strong> Park<strong>in</strong>son<br />
disease and park<strong>in</strong>sonisms: implications for early diagnosis<br />
<strong>Italian</strong> M<strong>in</strong>istry <strong>of</strong> Health<br />
22/12/2008 - 22/12/2011<br />
The prevalence rate for neuropsychiatric symptoms <strong>of</strong> depression,<br />
anxiety, and halluc<strong>in</strong>ations <strong>in</strong> subjects with Park<strong>in</strong>son Disease (PD) has a<br />
very wide range. This suggests how undef<strong>in</strong>ed the results <strong>of</strong> studies done<br />
up till now are. Moreover, longitud<strong>in</strong>al studies suggest that the majority<br />
<strong>of</strong> subjects with PD could develop dementia dur<strong>in</strong>g the course <strong>of</strong> the<br />
disease. This study aims at evaluat<strong>in</strong>g the differential features <strong>of</strong><br />
cognitive and neuropsychiatric disturbances <strong>in</strong> subjects with PD and other<br />
Park<strong>in</strong>sonisms at the onset <strong>of</strong> the disease vs. advanced phases. A crosssectional<br />
model could help to understand the phenomena chang<strong>in</strong>g along<br />
time <strong>in</strong> a time-limited project. If psychopathological disturbances<br />
associated with Park<strong>in</strong>son disease are difficult to be studied, those that<br />
accompany other motor disturbances are almost completely unknown.<br />
Therefore, it is urgent to fill this gap <strong>in</strong> knowledge with studies aimed at a<br />
better diagnostic typ<strong>in</strong>g between PD, LBD and other degenerative and<br />
vascular park<strong>in</strong>sonisms. Another important issue concerns the validity <strong>of</strong><br />
diagnostic criteria <strong>of</strong> DSM-IV for mood disturbances and anxiety<br />
disturbances <strong>in</strong> subjects with motor disturbances. Thus, <strong>in</strong> this crosssectional<br />
study, 300 patients affected by motor disturbances will be<br />
recruited. In particular, we will <strong>in</strong>clude 150 subjects with idiopatic<br />
Park<strong>in</strong>son Disease (PD) <strong>of</strong> which 50 at onset and 100 <strong>in</strong> the advanced<br />
phase, 50 subjects with Dementia with Lewy Bodies (DLB); 50 subjects<br />
with vascular PD; 25 subjects with Progressive Supranuclear Palsy (PSP);<br />
20 subjects with corticobasal degeneration (CBD) and 10 subjects with<br />
multisystemic atrophy (MSA). Patients will be assessed us<strong>in</strong>g a cl<strong>in</strong>ical<br />
battery compris<strong>in</strong>g: a neurological battery <strong>in</strong>clud<strong>in</strong>g socio-demographic<br />
and cl<strong>in</strong>ical history, Unified Park<strong>in</strong>son’s Disease Rat<strong>in</strong>g Scale (UPDRS), and<br />
Hoehn and Yahr scale. The neuropsychological battery will <strong>in</strong>clude: M<strong>in</strong>i<br />
Mental State Exam<strong>in</strong>ation, Rey 15-word test, reduced Wiscons<strong>in</strong> Card
Sort<strong>in</strong>g, reduced Stroop Color-Word test, Verbal and visual-spatial Nback,<br />
Verbal semantic fluency, Verbal phonological fluency, Sentence<br />
construction, Immediate and deferred copy <strong>of</strong> Rey figure. The<br />
neuropschiatric battery will <strong>in</strong>clude: Psychiatric diagnosis accord<strong>in</strong>g with<br />
the DSMIV-TR (<strong>in</strong> this case we will use both the standard diagnostic<br />
criteria and modified diagnostic criteria proposed by the Starkste<strong>in</strong> group<br />
<strong>in</strong> order to improve the neuropsychiatric diagnosis <strong>in</strong> patients with motor<br />
disturbances), Beck Depression Inventory, Toronto Alexithymia Scale,<br />
Penn Emotional Recognition Test, Snaith-Hamilton Pleasure Scale. In<br />
another part <strong>of</strong> the study we will <strong>in</strong>clude 20 idiopatic PD patients treated<br />
with Deep Bra<strong>in</strong> Stimulation (DBS). They will be cl<strong>in</strong>ically evaluated with<br />
UPDRS Part III and with the neuropsychological and neuropsychiatric<br />
battery above-mentioned. The evaluation <strong>of</strong> subjects with stimulator<br />
implants will be carried out without any treatment and <strong>in</strong> 3 different<br />
phases: 1) dur<strong>in</strong>g proper and stable antipark<strong>in</strong>sonian therapy and<br />
Stimulator on, 2) dur<strong>in</strong>g pharmacological therapy and DBS stimulator <strong>of</strong>f<br />
s<strong>in</strong>ce 90 m<strong>in</strong>utes, 3) absence <strong>of</strong> pharmacological therapy with DBS<br />
stimulator on. The neuropsychological and behavioural tests will be<br />
carried out <strong>in</strong> a random way on different days. In the subgroup <strong>of</strong><br />
patients with DBS the evaluation for depression will be carried out with a<br />
visual-analogical scale to <strong>in</strong>stantly capture the severity <strong>of</strong> the depression<br />
<strong>in</strong> each <strong>of</strong> the 4 experimental conditions. Results <strong>of</strong> studies <strong>in</strong> this field<br />
will allow to propose new diagnostic criteria for neuropsychiatric and<br />
behavioural disturbances which will help cl<strong>in</strong>icians <strong>in</strong> the early and<br />
differential diagnosis <strong>of</strong> movement disorders allow<strong>in</strong>g also a better<br />
treatment. The <strong>research</strong> on patients <strong>in</strong> treatment with DBS will allow a<br />
better understand<strong>in</strong>g <strong>of</strong> the features <strong>of</strong> non motor symptoms and<br />
directions towards treatments. The study will also provide a picture <strong>of</strong> the<br />
differential expression <strong>of</strong> cognitive versus neuropsychiatric symptoms<br />
with<strong>in</strong> each pathological entity. Such achievements will be possibly imply<br />
a reduction <strong>of</strong> the burden caused by these diseases on the patient’s<br />
family, as well as a decrease <strong>of</strong> the social and heath costs.
Nome Gianfranco Spalletta<br />
Contatti<br />
Tel.<br />
E mail<br />
Via Ardeat<strong>in</strong>a, 306 - 00179 Rome<br />
O6-51501575<br />
g.spalletta@hsantalucia.it<br />
Istituto/Dipartimento IRCCS Santa Lucia Foundation/Department <strong>of</strong> Cl<strong>in</strong>ical and behavioral<br />
neurology - Neuropsychiatry laboratory<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse identificata Mild Cognitive Impairment and Dementias<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
Cognitive and behavioural <strong>in</strong>dicators <strong>of</strong> conversion from Mild Cognitive<br />
Impairment to neurodegenerative dementia and development <strong>of</strong><br />
cognitive rehabilitation protocols<br />
<strong>Italian</strong> M<strong>in</strong>istry <strong>of</strong> Health<br />
01/01/2009 - 31/12/2011<br />
Accord<strong>in</strong>g to a four-group classification, the MCI amnestic s<strong>in</strong>gle doma<strong>in</strong><br />
is characterized by a selective deficit <strong>of</strong> amnesic performances, multidoma<strong>in</strong><br />
amnestic MCI presents memory impairment and at least one<br />
other cognitive doma<strong>in</strong> impairment, nonamnestic s<strong>in</strong>gle doma<strong>in</strong> MCI is<br />
associated with the compromise <strong>of</strong> one nonamnestic doma<strong>in</strong>, and<br />
nonamnestic multi-doma<strong>in</strong> MCI is associated with the compromise <strong>of</strong> two<br />
or more nonamnestic cognitive doma<strong>in</strong>s. The hypothetic usefulness <strong>of</strong><br />
subdivid<strong>in</strong>g MCI to identify specifically the type <strong>of</strong> dementia to which the<br />
patient will convert has partially failed. However, there is solid evidence<br />
that multi-doma<strong>in</strong> MCI has the highest rate <strong>of</strong> conversion <strong>in</strong> dementia.<br />
Although there is convergence on the description <strong>of</strong> the high risk <strong>of</strong><br />
develop<strong>in</strong>g AD <strong>in</strong> subjects with chronic depression, <strong>of</strong>ten associated with<br />
hippocampal atrophy, there are also studies which clarify with sufficient<br />
reliability that other neuropsychiatric disturbances may predict<br />
conversion to AD. Regard<strong>in</strong>g the fact that therapeutic strategies for the<br />
pathogenesis <strong>of</strong> AD have failed up till now, and consider<strong>in</strong>g the high risk<br />
<strong>of</strong> patients with MCI to develop AD, a revision <strong>of</strong> the cl<strong>in</strong>ical-diagnostic<br />
criteria <strong>of</strong> AD has been recently proposed. This revision makes AD<br />
diagnosis similar to those <strong>of</strong> amnesic MCI with the exception <strong>of</strong> biological<br />
and neuroradiological markers recognized as specific for AD diagnostic<br />
purposes. Unfortunately, the specific neuropsychiatric symptoms <strong>of</strong> AD<br />
were not <strong>in</strong>cluded even <strong>in</strong> this recent diagnostic revision proposal. This<br />
<strong>research</strong> project will attempt to identify cl<strong>in</strong>ical characteristics useful for<br />
predict<strong>in</strong>g the risk <strong>of</strong> develop<strong>in</strong>g neurodegenerative dementia from the 4<br />
different forms <strong>of</strong> MCI, the type <strong>of</strong> dementia more frequently associated<br />
with each cl<strong>in</strong>ical characteristics, the progression severity <strong>of</strong> the illness; d)
the effect <strong>of</strong> caregiver support on the illness progression, and the efficacy<br />
<strong>of</strong> cognitive rehabilitation on every subtype <strong>of</strong> cl<strong>in</strong>ical characteristics. The<br />
method <strong>of</strong> open study on cognitive rehabilitation will give an early cl<strong>in</strong>ical<br />
<strong>in</strong>dication <strong>of</strong> the potential <strong>of</strong> this treatment. One hundred patients<br />
diagnosed with MCI will be <strong>in</strong>cluded <strong>in</strong> the study. The patients <strong>in</strong>cluded<br />
will carry out an <strong>in</strong> depth anamnestic evaluation and a<br />
diagnostic\categorical evaluation for MCI subtype. In addition, categorical<br />
neuropsychiatric disorders <strong>of</strong> depression, psychosis, and apathy will be<br />
assessed. Dimensional neuropsychiatric symptom severity will be<br />
measured with a battery <strong>of</strong> tests <strong>in</strong>clud<strong>in</strong>g: Neuropsychiatric Inventory-12<br />
items, CERAD Disforia, and Dementia Apathy Interview and Rat<strong>in</strong>g. The<br />
age at onset <strong>of</strong> each behavioural disturbance and the first memory deficit<br />
will be accurately evaluated. Moreover, To obta<strong>in</strong> a global <strong>in</strong>dex <strong>of</strong><br />
cognitive impairment, we will adm<strong>in</strong>ister the MMSE. The Mental<br />
Deterioration Battery and other cognitive task will be used to assess<br />
<strong>in</strong>dividual cognitive doma<strong>in</strong>s. A subsample <strong>of</strong> 30 MCI patients will be<br />
treated with 12 weeks cognitive rehabilitation. Also, a subsample <strong>of</strong><br />
caregivers <strong>of</strong> 30 MCI patients will undergo psychometric evaluation at<br />
basel<strong>in</strong>e and at the three and six-month follow-up. All subjects will be<br />
<strong>in</strong>cluded dur<strong>in</strong>g the first 6 months period <strong>of</strong> the project. All diagnostic,<br />
cognitive and neuropsychiatric tests will be adm<strong>in</strong>istered every six<br />
months until 18 months from the first evaluation.<br />
This project will allow a more correct cl<strong>in</strong>ical-diagnostic subclassification<br />
<strong>of</strong> MCI subgroups <strong>in</strong> order to make the cl<strong>in</strong>ical subtypes <strong>of</strong> MCI more<br />
homogeneous both on the diagnostic level and the biological correlates.<br />
In particular, this most reliable subclassification should help to fasten the<br />
recognition <strong>of</strong> the disorders and the differential diagnosis, thus<br />
facilitat<strong>in</strong>g a more precocious and specific treatment <strong>of</strong> patients who will<br />
develop the different types <strong>of</strong> dementia. This project will also suggest the<br />
potential role <strong>of</strong> cognitive rehabilitation therapy and caregivers support<br />
on the cognitive and behavioural symptom progression <strong>of</strong> MCI. To obta<strong>in</strong><br />
this result potentially means a reduced cost <strong>of</strong> the management <strong>of</strong><br />
dementia for the national health service and a better outcome <strong>of</strong> the<br />
illness for patients.
Nome Paolo Calabresi<br />
Contatti Cl<strong>in</strong>ica Neurologica, Università degli Studi di Perugia, Ospedale S. Maria<br />
della Misericordia, 06132 Perugia, Italy<br />
e-mail: calabre@unipg.it<br />
Istituto/Dipartimento Cl<strong>in</strong>ica Neurologica, Laboratori di Neurologia sperimentale,<br />
Dipartimento di Specialitá Medico Chirurgiche e Sanitá Pubblica,<br />
Università degli Studi di Perugia<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse identificata Electrophysiological study <strong>of</strong> striatal physiology <strong>in</strong> normal conditions<br />
and <strong>in</strong> experimental park<strong>in</strong>sonism: use <strong>of</strong> genetic and pathogenetic<br />
animal models.<br />
Pre-cl<strong>in</strong>ical <strong>research</strong> is conducted at the Laboratory <strong>of</strong> Experimental<br />
Neurology <strong>of</strong> the Cl<strong>in</strong>ica Neurologica at the Hospital S. Maria della<br />
Misericordia <strong>in</strong> Perugia. The activities focus on the study <strong>of</strong> important<br />
neurological pathologies such Park<strong>in</strong>son’s disease (PD) and other<br />
neurological and neurodegenerative conditions (Hunt<strong>in</strong>gton disease,<br />
Alzheimer disease, Multiple sclerosis, stroke, epilepsy) by means <strong>of</strong> <strong>in</strong><br />
vitro animal models.<br />
The ma<strong>in</strong> topic <strong>of</strong> the laboratory is the study <strong>of</strong> the mechanisms<br />
<strong>in</strong>volved <strong>in</strong> the physiopathology <strong>of</strong> such diseases by means <strong>of</strong> up to<br />
date electrophysiology and behavioural techniques <strong>in</strong> tight<br />
collaboration with the Laboratories <strong>of</strong> Neurophysiology located at the<br />
Fondazione S. Lucia <strong>in</strong> Rome.<br />
Motor and non-motor symptoms occurrence <strong>in</strong> PD represent the<br />
downstream effect <strong>of</strong> a pathological cascade result<strong>in</strong>g <strong>in</strong> the<br />
degeneration <strong>of</strong> dopam<strong>in</strong>ergic neurons <strong>of</strong> the substantia nigra pars<br />
compacta (SNpc) project<strong>in</strong>g to the nucleus striatum. In this nucleus<br />
physiological activation <strong>of</strong> neuronal pathways are able to produce longterm<br />
depression (LTD), long-term potentiation (LTP) and<br />
“depotentiation” <strong>of</strong> synaptic transmission that are all disrupted by the<br />
PD-related pathological process. While Levodopa (L-DOPA) rema<strong>in</strong>s the<br />
gold standard <strong>of</strong> symptomatic therapy <strong>of</strong> PD it also causes severe longterm<br />
side effects (L-DOPA-<strong>in</strong>duced dysk<strong>in</strong>esia, LID). The cellular and<br />
molecular mechanisms <strong>of</strong> LID formation and ma<strong>in</strong>tenance have started<br />
to be elucidated.<br />
For the study <strong>of</strong> these phenomena we take advantage <strong>of</strong> several animal<br />
models <strong>of</strong> PD. A well accepted model is obta<strong>in</strong>ed with the <strong>in</strong>jection <strong>of</strong> 6hydroxydopam<strong>in</strong>e<br />
(6-OHDA) <strong>in</strong>to the SN caus<strong>in</strong>g permanent DAdenervation<br />
<strong>of</strong> the ipsilateral striatum mimick<strong>in</strong>g the symptoms <strong>of</strong> the<br />
human PD. The <strong>in</strong> vitro model <strong>of</strong> PD by acute application <strong>of</strong> the<br />
neurotox<strong>in</strong> rotenone that affects the complex I <strong>of</strong> mitochondrial cha<strong>in</strong><br />
is an important tool to explore mitochondrial function l<strong>in</strong>ked to PD. In<br />
order to assess specific aspects <strong>of</strong> the pathogenesis <strong>of</strong> PD, we employ
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore Pr<strong>in</strong> 2008<br />
Durata progetto Two years<br />
Titolo progetto<br />
transgenic animal l<strong>in</strong>es express<strong>in</strong>g different mutant forms <strong>of</strong> αsynucle<strong>in</strong>s<br />
such as A53T-α-synucle<strong>in</strong> mice and mice express<strong>in</strong>g human<br />
α-synucle<strong>in</strong> lack<strong>in</strong>g the C-term<strong>in</strong>al 20 am<strong>in</strong>o acids (α -Syn120).<br />
Furthermore, <strong>in</strong> order to study and to prevent LID development<br />
(prim<strong>in</strong>g) and ma<strong>in</strong>tenance <strong>in</strong> PD models we focussed on the<br />
modulation <strong>of</strong> the Ras-ERK pathway by the use <strong>of</strong> lentiviral vector (LV)mediated<br />
expression <strong>of</strong> either small harp<strong>in</strong> RNAs (shRNAs) specific for<br />
Ras-GRF1 and DARPP-32.<br />
Nuovi approcci terapeutici per le disc<strong>in</strong>esie <strong>in</strong>dotte dal trattamento con<br />
L-DOPA <strong>in</strong> un modello sperimentale di Park<strong>in</strong>son: ruolo delle subunità<br />
del recettore NMDA e della via molecolare Ras-ERK<br />
LIDYAS - An <strong>in</strong>novative approach to treat levodopa-<strong>in</strong>duced dysk<strong>in</strong>esia<br />
based on target<strong>in</strong>g striatal <strong>in</strong>tracellular signall<strong>in</strong>g<br />
Ente f<strong>in</strong>anziatore Progetto San Paolo di Tor<strong>in</strong>o - Coord<strong>in</strong>atore: Istituto Nazionale di<br />
Neuroscienze (INN)<br />
Durata progetto Three years<br />
Titolo progetto<br />
A multidiscipl<strong>in</strong>ary approach to test the therapeutic potential <strong>of</strong> neural<br />
stem cell transplantation <strong>in</strong> precl<strong>in</strong>ical mouse models <strong>of</strong> Park<strong>in</strong>son’s<br />
disease<br />
Ente f<strong>in</strong>anziatore Progetto Strategico ex art56 Centro San Raffaele del Monte Tabor<br />
Durata progetto Two years<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore Progetto F<strong>in</strong>alizzato 2005<br />
Durata progetto Two years<br />
Meccanismi di danno neuronale alla base della neurodegenerazione<br />
nelle patologie dei gangli della base<br />
Titolo progetto SYNSCAFF - Synaptic scaffold<strong>in</strong>g prote<strong>in</strong>s orchestrat<strong>in</strong>g cortical synapse<br />
organisation dur<strong>in</strong>g development.<br />
Ente f<strong>in</strong>anziatore SIXTH FRAMEWORK PROGRAMME - PRIORITY [LSH-2003-2.1.3-5]<br />
[Cortical development] Proposal/Contract no.:511995<br />
Durata progetto Four years<br />
Titolo progetto<br />
Mechanisms <strong>of</strong> L-DOPA-<strong>in</strong>duced dysk<strong>in</strong>esia <strong>in</strong> an experimental model <strong>of</strong><br />
Park<strong>in</strong>son's Disease: focus on NMDA receptors<br />
Ente f<strong>in</strong>anziatore M<strong>in</strong>istero dell’Istruzione dell’Università e della Ricerca (Pr<strong>in</strong> 2005)<br />
Durata progetto Two years<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore Sigma Tau<br />
Durata progetto One years<br />
Ruolo dell’adenos<strong>in</strong>a nella trasmissione s<strong>in</strong>aptica eccitatoria striatale:<br />
<strong>in</strong>terazione con il sistema dopam<strong>in</strong>ergico
Titolo progetto<br />
Mechanisms underly<strong>in</strong>g cell-type specific vulnerability <strong>of</strong> striatal<br />
neurons: implications for hunt<strong>in</strong>gton's disease<br />
Ente f<strong>in</strong>anziatore Telethon GGP02035<br />
Durata progetto Two years<br />
Titolo progetto REPLACES - Restorative Plasticity At Corticostriatal Excitatory Synapses<br />
Ente f<strong>in</strong>anziatore Comunità Europea - HEALTH-2007-2.2.1-7 - Grant agreement no.:<br />
222918<br />
Durata progetto Four years<br />
Titolo progetto Imag<strong>in</strong>g and biological markers <strong>of</strong> disease progression<br />
Ente f<strong>in</strong>anziatore Progetto STRATEGICO M<strong>in</strong>istero della Sanità - Sottoprogetto 5<br />
Durata progetto Two years
Nome Lucilla Parnetti<br />
Contatti<br />
Cl<strong>in</strong>ica Neurologica, Università degli Studi di Perugia, Ospedale S. Maria della<br />
Misericordia, 06132 Perugia, Italy<br />
Tel: +39 075 578 3545; Fax: +39 075 578 3621.<br />
Tel.<br />
parnetti@unipg.it<br />
E mail<br />
Istituto/Dipartimento Cl<strong>in</strong>ica Neurologica, Centro Disturbi della Memoria – Unità Valutativa<br />
Alzheimer - Laboratorio di Neurochimica Cl<strong>in</strong>ica, Dipartimento di<br />
Specialitá Medico Chirurgiche e Sanitá Pubblica, Università degli Studi di<br />
Perugia<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse identificata Cerebrosp<strong>in</strong>al fluid biomarkers <strong>in</strong> Alzheimer’s disease and other<br />
neurodegenerative diseases<br />
Cl<strong>in</strong>ical <strong>research</strong> <strong>in</strong> the Laboratory <strong>of</strong> Neurochemistry is performed <strong>in</strong><br />
close contact with the Center for Memory disturbancies, the Center for<br />
Movement disorders and the Center for Demyel<strong>in</strong>at<strong>in</strong>g disease <strong>of</strong> the<br />
Hospital S. Maria della Misericordia <strong>in</strong> Perugia. In the Laboratory <strong>of</strong><br />
Neurochemistry, a biobank <strong>of</strong> cerebrosp<strong>in</strong>al fluid (CSF) and plasma<br />
samples from patients with neurological diseases is available, mak<strong>in</strong>g<br />
feasible retrospective studies on several pathologies such as Alzheimer’s<br />
disease (AD), Park<strong>in</strong>son’s disease (PD) and other neurodegenerative<br />
diseases.<br />
The ma<strong>in</strong> topic <strong>of</strong> the laboratory is the study <strong>of</strong> CSF biomarkers for the<br />
early and/or differential diagnosis <strong>of</strong> AD. The classical biomarkers Aβ1-42,<br />
tau prote<strong>in</strong> (t-tau), and phosphorylated tau 181 (p-tau) are rout<strong>in</strong>ely<br />
assayed <strong>in</strong> CSF <strong>of</strong> patients with suspected dementia and/or patients with<br />
mild cognitive impairment (MCI) for which is also available a cl<strong>in</strong>ical<br />
follow up by means <strong>of</strong> neuropsychological tests.Techniques available <strong>in</strong><br />
the Laboratory <strong>of</strong> Neurochemistry <strong>in</strong>clude ma<strong>in</strong>ly immunoassays such as<br />
ELISA and xMAP technique. The latter allows us to multiplex several<br />
analytes <strong>in</strong>creas<strong>in</strong>g the number <strong>of</strong> molecules that can be measured<br />
start<strong>in</strong>g from the same volume <strong>of</strong> sample.<br />
CSF biomarkers show promise as a diagnostic tool <strong>in</strong> patients with AD, but<br />
recent multicenter studies showed that the levels <strong>of</strong> these biomarkers<br />
vary between different <strong>research</strong> centers. To study the source <strong>of</strong> variation<br />
our laboratory is actually <strong>in</strong>volved <strong>in</strong> a world quality control program run<br />
by the Alzheimer Association <strong>in</strong> conjunction with Cl<strong>in</strong>ical Neurochemistry<br />
Laboratory <strong>in</strong> Gothenburg, Sweden, with the f<strong>in</strong>al goal <strong>of</strong> standardize<br />
these assays for cl<strong>in</strong>ical rout<strong>in</strong>e.<br />
Beside the classical CSF biomarkers we are actually study<strong>in</strong>g other<br />
prote<strong>in</strong>s as possible biomarkers for neurodegenerative diseases. We have<br />
recently shown that heart-fatty acid b<strong>in</strong>d<strong>in</strong>g prote<strong>in</strong> (H-FABP) is<br />
significantly <strong>in</strong>creased <strong>in</strong> MCI patients which converted to AD and it may<br />
represent a new marker <strong>of</strong> neurodegeneration. Other projects are related<br />
to progranul<strong>in</strong> measurement <strong>in</strong> CSF, a prote<strong>in</strong> which has been related to<br />
frontotemporal dementia and amyotrophic lateral sclerosis and to the<br />
evaluation <strong>of</strong> Aβ1-40 as a useful marker to differentiate various dementia<br />
conditions. F<strong>in</strong>ally we are also evaluat<strong>in</strong>g the usefulness <strong>of</strong> the<br />
measurement <strong>of</strong> α-synucle<strong>in</strong> and classical CSF biomarkers to dist<strong>in</strong>guish
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
synucle<strong>in</strong>opathies (PD and dementia with Lewy Bodies) from other<br />
neurodegenerative diseases.<br />
cNEUPRO (contract no. 199 LSHM-CT-2007-037950)<br />
EU – FP6<br />
Three years (2007-2010)<br />
Recent <strong>research</strong> has clearly demonstrated that multiparametric<br />
neurochemical dementia diagnostics (NDD) <strong>in</strong> cerebrosp<strong>in</strong>al fluid (CSF)<br />
does improve the early and differential diagnosis <strong>of</strong> dementias. cNEUPRO<br />
will apply advanced proteomic tools to discover novel neurochemical<br />
dementia markers <strong>in</strong> blood and CSF for the improved early and possibly<br />
predictive diagnosis <strong>of</strong> AD. A predictive dementia diagnosis will support<br />
the most effective use <strong>of</strong> forthcom<strong>in</strong>g preventive therapeutic strategies.<br />
Our <strong>in</strong>itiative will establish European SOPs for current neurochemical<br />
dementia diagnostics (NDD). A strong methodological impact is put on<br />
the quality <strong>of</strong> pre-analytical sample handl<strong>in</strong>g and cl<strong>in</strong>ical phenotyp<strong>in</strong>g,<br />
which has been neglected <strong>in</strong> <strong>in</strong>dustry-driven discovery studies. cNEUPRO<br />
<strong>in</strong>tegrates <strong>in</strong>novative biotech and bio<strong>in</strong>formatic companies with lead<strong>in</strong>g<br />
cl<strong>in</strong>ical and proteomic dementia <strong>research</strong> centres. cNEUPRO will also<br />
support the discovery <strong>of</strong> new diagnostic targets and is also promis<strong>in</strong>g to<br />
identify novel scaffolds for advanced molecular neuroimag<strong>in</strong>g.<br />
CSF lysosomal hydrolases’ activity as possible marker <strong>of</strong> Park<strong>in</strong>son’s<br />
disease<br />
MJFF<br />
1 year<br />
Objective/Rationale:<br />
Recent studies have l<strong>in</strong>ked lysosomal dysfunction to the accumulation <strong>of</strong><br />
α-synucle<strong>in</strong> oligomers and α-synucle<strong>in</strong>-mediated cell death. Cl<strong>in</strong>ical,<br />
neuropathological and genetic associations between Gaucher’s disease, a<br />
lysosomal storage disease, and Parkison’s disease (PD) have been<br />
reported. Also, a reduction <strong>of</strong> the activities <strong>of</strong> β-glucocerebrosidase, α<br />
and β-mannosidase has been reported <strong>in</strong> CSF <strong>of</strong> PD patients.<br />
To date there is no accepted diagnostic test for Park<strong>in</strong>son’s disease based<br />
on biochemical analysis <strong>of</strong> blood or cerebrosp<strong>in</strong>al fluid (CSF). The<br />
potential use <strong>of</strong> CSF lysosomal enzyme activities as a diagnostic <strong>in</strong>dicator,<br />
or as a marker <strong>of</strong> disease progression <strong>in</strong> PD, will be <strong>in</strong>vestigated.<br />
Moreover the CSF levels <strong>of</strong> alpha-synucle<strong>in</strong> – a candidate diagnostic<br />
biomarker <strong>of</strong> PD – will be comb<strong>in</strong>ed with the lysosomal enzyme activities<br />
<strong>in</strong> order to verify if there is any association between these biochemical<br />
parameters.Project Description: De-novo and treated patients referr<strong>in</strong>g<br />
to the Section <strong>of</strong> Neurology, University <strong>of</strong> Perugia, Italy, will be <strong>in</strong>cluded<br />
<strong>in</strong> the study. CSF samples will be collected from patients with PD (n=80)<br />
and healthy subjects (n=50). Lysosomal enzyme activities (betaglucocerebrosidase,<br />
alpha-mannosidase, beta-mannosidase, beta-
hexosam<strong>in</strong>idase, beta-galactosidase, alpha-fucosidase, arylsulfatase A,<br />
arylsulfatase B, catheps<strong>in</strong> D, and catheps<strong>in</strong> S) will be determ<strong>in</strong>ed <strong>in</strong> CSF<br />
samples us<strong>in</strong>g specific fluorimetric substrates. The levels <strong>of</strong> monomeric<br />
and oligomeric alpha-synucle<strong>in</strong>, us<strong>in</strong>g a sensitive and specific ELISA<br />
method able to reveal levels as low as 1 pg/mL <strong>in</strong> human biological fluids,<br />
<strong>in</strong>clud<strong>in</strong>g plasma and CSF, will be also evaluated.
3. HUMAN/CLINICAL RESEARCH<br />
D. Diagnosis: biomarkers
Nome<br />
Roberta Ghidoni, Giuliano B<strong>in</strong>etti<br />
Contatti<br />
+39-030-3501725<br />
rghidoni@fatebenefratelli.it<br />
Istituto/Dipartimento IRCCS “Centro San Giovanni di Dio-Fatebenefratelli”<br />
Proteomics Unit, NeuroioGenLab Memory Cl<strong>in</strong>ic, Brescia, Italy<br />
Proposta di ricerca<br />
Over the past 10 years, frontotemporal lobar degeneration (FTLD) has emerged as the most common cause<br />
<strong>of</strong> dementia under the age <strong>of</strong> 60 years, outstripp<strong>in</strong>g even Alzheimer disease <strong>in</strong> prevalence. The <strong>in</strong>creas<strong>in</strong>gly<br />
common occurrence <strong>of</strong> FTLD, and its devast<strong>in</strong>g impact on families and patients with<strong>in</strong> their most<br />
productive years, urges novel approaches to cure or to prevent it. To date, there are no Food and Drug<br />
Adm<strong>in</strong>istration approved medications for FTLD. FTLD has a strong genetic component, with up to 50% <strong>of</strong><br />
cases be<strong>in</strong>g caused by mutation. Recently the progranul<strong>in</strong> gene (PGRN) was shown to be the most frequent<br />
genetic determ<strong>in</strong>ant: 68 mutations have been described <strong>in</strong> 212 families which account for 5–10% <strong>of</strong> FTLD<br />
cases worldwide (http://www.molgen.ua.ac.be/FTDmutations/). At present, the most common PGRN<br />
mutations worldwide are the Arg493X mutation, which has been identified <strong>in</strong> 37 patients belong<strong>in</strong>g to 30<br />
genealogically unrelated families with FTLD (the “Mayo Cl<strong>in</strong>ic” cohort) (Rademakers R et al,Lancet Neurol.<br />
2007) and the PGRN Leu271LeufsX10 mutation, that we identified <strong>in</strong> 49 patients belong<strong>in</strong>g to 38 unrelated<br />
<strong>Italian</strong> families (the “Brescia” cohort) (Benussi et al. NBA 2008;Benussi L and Ghidoni R et al, NBD 2009;<br />
Benussi L et al. ADAD <strong>in</strong> press).We recently reported that low plasma progranul<strong>in</strong> levels predict progranul<strong>in</strong><br />
mutations <strong>in</strong> frontotemporal lobar degeneration. (Ghidoni R et al, Neurology 2008). Progranul<strong>in</strong> therefore<br />
has become a promis<strong>in</strong>g target for new therapeutic FTLD approaches. Our resources are:<br />
1) Cl<strong>in</strong>ical expertise <strong>in</strong> FTLD: the IRCCS <strong>in</strong> Brescia has become a reference center for FTLD and related<br />
disorders serv<strong>in</strong>g a large geographical area <strong>in</strong> Lombardia. 2) The largest (along with the “Mayo Cl<strong>in</strong>ic<br />
cohort”) biological sample collection <strong>of</strong> PGRN mutation carriers (the “Brescia” cohort). Our scientific work<br />
<strong>in</strong> the last years has generated one <strong>of</strong> the largest cohort <strong>of</strong> FTLD families and biological sample collection <strong>of</strong><br />
PGRN mutation carriers (affected and presymptomatic), that is an <strong>in</strong>valuable resource for <strong>research</strong> studies<br />
3) Cellular and animal disease models.<br />
Our specific aims are:<br />
1) Elucidat<strong>in</strong>g the role <strong>of</strong> progranul<strong>in</strong> <strong>in</strong> the disease onset and progression: we will study the molecular<br />
mechanisms underly<strong>in</strong>g neurodegeneration <strong>in</strong> PGRN mutations carriers (plasma/serum) as well as <strong>in</strong><br />
cellular (human fibroblasts and lymphocytes ) and animal models.<br />
2) Biomarkers discovery for the differential diagnosis <strong>of</strong> FTLD vs Alzheimer’s disease (AD). FTLD is <strong>of</strong>ten<br />
misdiagnosed as another type <strong>of</strong> dementia (AD) and hence biochemical diagnostic markers would aid <strong>in</strong><br />
differential diagnosis. Analysis <strong>of</strong> CSF is so far the most convenient method for study<strong>in</strong>g the biology <strong>of</strong><br />
neurodegenerative diseases <strong>in</strong> liv<strong>in</strong>g patients. For a global proteomic study, surface-enhanced laser<br />
desorption/ionization mass spectrometry (SELDI-TOF MS) as well as two-dimensional gel electrophoresis<br />
(2-DE) will be used to study differential CSF prote<strong>in</strong> expression.<br />
3) Search<strong>in</strong>g for new genes: Identification <strong>of</strong> novel disease-associated loci by l<strong>in</strong>kage and gene expression<br />
analysis.<br />
Centers collaborat<strong>in</strong>g to this project: IRCCS Centro S.Giovanni di Dio-Fatebenefratelli, Brescia;. Istituto<br />
di Ricerche Farmacologiche "Mario Negri" , Milan (G. Forloni); Università degli Studi di Brescia (PF<br />
Spano); University <strong>of</strong> Milan (D. Galimberti, E. Scarp<strong>in</strong>i); IRCCS Besta, Milan (F. Tagliav<strong>in</strong>i)<br />
Area di <strong>in</strong>teresse identificata Translational <strong>research</strong><br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Proteomics <strong>of</strong> cognitive and movement disorders: Identification <strong>of</strong><br />
molecular mechanisms associated with disease onset and phenotypic<br />
variability <strong>of</strong> frontotemporal lobar degeneration- (2009-2633)
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
FONDAZIONE CARIPLO, Bando Ricerca Biomedica 2009<br />
01-01-2010/01-07-2012<br />
The ma<strong>in</strong> objective <strong>of</strong> the present study is to unravel the<br />
pathophysiological bases <strong>of</strong> progranulopathies by<br />
1) proteomic approach- For a global proteomic study, SELDI-TOF as well<br />
as two-dimensional gel electrophoresis (2-DE) will be used to study<br />
differential prote<strong>in</strong> expression <strong>in</strong> subjects carry<strong>in</strong>g or not PGRN mutations<br />
2) neuroimag<strong>in</strong>g study- The aim <strong>of</strong> the neuroimag<strong>in</strong>g study is to describe<br />
the MR features <strong>of</strong> PGRN mutations with conventional, non-conventional,<br />
and functional neuroimag<strong>in</strong>g.<br />
3) personality and behavioral assessment- We will assess the personality<br />
and behavioral trait <strong>of</strong> asymptomatic at risk family members carry<strong>in</strong>g<br />
PGRN mutations<br />
4) cellular and animal models studies-<br />
Project 1: “Validation <strong>of</strong> genetic and biochemical markers for early<br />
diagnosis <strong>of</strong> AD and the prediction <strong>of</strong> conversion <strong>of</strong> MCI <strong>in</strong>to AD, and<br />
design <strong>of</strong> a multivariate molecular protocol hav<strong>in</strong>g high diagnostic and<br />
prognostic accuracy”.<br />
Project 2: “Marker biologici di neurodegenerazione utilizzabili nella<br />
pratica cl<strong>in</strong>ica ai f<strong>in</strong>i della diagnosi precoce e differenziale, della<br />
<strong>in</strong>dividuazione delle forme con risposta ottimale alle attuali terapie”<br />
Project 1: <strong>Italian</strong> M<strong>in</strong>istry <strong>of</strong> Health, Progr. Strategico PS39, prog. 1<br />
Project 2: <strong>Italian</strong> M<strong>in</strong>istry <strong>of</strong> Health, Progr. Strategico conv.71, prog. 6<br />
Project 1: 01-01-2009/31-12-2010<br />
Project 2: 07-01-2008/07-04-2010<br />
These programs have two primary aims:<br />
1) The development and validation <strong>of</strong> a multi-factorial protocol that<br />
<strong>in</strong>tegrates molecular, imag<strong>in</strong>g, neurophysiological, neuropsychological<br />
and behavioral data for early diagnosis <strong>of</strong> AD, <strong>in</strong> particular dur<strong>in</strong>g the<br />
precl<strong>in</strong>ical phase and the prodromal stage <strong>of</strong> "mild cognitive impairment"<br />
when the symptoms are not severe enough to fulfill the current<br />
diagnostic criteria for AD.<br />
2) Validation <strong>of</strong> this new diagnostic protocol with<strong>in</strong> a regional public<br />
health network, and evaluation <strong>of</strong> the health care, organization and<br />
economic implications <strong>of</strong> its transfer to the National Health Service.
Referente: Pr<strong>of</strong>. Carlo Ferrarese<br />
Phone. 039.233.3595<br />
Fax. 039.233.2449<br />
Email: carlo.ferrarese@unimib.it<br />
Cl<strong>in</strong>ica Neurologica, Ospedale San Gerardo<br />
Via Pergolesi 33 – 20052 Monza (MB)<br />
Laboratorio di Neurobiologia<br />
Dipartimento di Neuroscienze e Tecnologie Biomediche – Università di Milano-Bicocca<br />
Via Cadore 48 – 20052 Monza (MB)<br />
The ma<strong>in</strong> <strong>in</strong>terest <strong>of</strong> our group consists <strong>in</strong> the <strong>in</strong>tegration <strong>of</strong> cl<strong>in</strong>ical and basic scientific <strong>research</strong> to<br />
understand the pathogenic mechanisms <strong>of</strong> neurodegenerative disorders and to identify new strategies for<br />
diagnos<strong>in</strong>g, treat<strong>in</strong>g and prevent<strong>in</strong>g such untreatable diseases. Our center is composed by a cl<strong>in</strong>ical core<br />
(Department <strong>of</strong> Neurology, 42 beds plus Laboratory <strong>of</strong> Neurophysiology and Laboratory <strong>of</strong><br />
Neuropsychology) at the san Gerardo Hospital (Monza, Italy) and a biological facility (Laboratory <strong>of</strong><br />
Neurobiology, Department <strong>of</strong> Neuroscience and Biomedical Technologies, University <strong>of</strong> Milano-Bicocca).<br />
Regard<strong>in</strong>g dementias and cognitive dysfunction, the ma<strong>in</strong> body <strong>of</strong> our cl<strong>in</strong>ical work is centered at the<br />
Memory Cl<strong>in</strong>ic (U.V.A. outpatient facility) that sees more than 300 patients among Alzheimer’s disease (AD)<br />
and other types <strong>of</strong> dementia. Cl<strong>in</strong>ical activity is deeply <strong>in</strong>volved with <strong>research</strong> epidemiological, cl<strong>in</strong>ical, and<br />
neurobiological. Novel experimental therapies are <strong>of</strong>fered; for example, a phase 3 trial test<strong>in</strong>g the efficacy<br />
<strong>of</strong> an anti-beta amyloid antibody <strong>in</strong> AD is currently recruit<strong>in</strong>g patients.<br />
The strict connection exist<strong>in</strong>g between the Memory Cl<strong>in</strong>ic and the Laboratory <strong>of</strong> Neurobiology allows<br />
study<strong>in</strong>g novel peripheral markers <strong>in</strong> AD (ma<strong>in</strong>ly biochemical alterations <strong>in</strong> blood elements and sk<strong>in</strong><br />
fibroblasts) that might <strong>in</strong> the future be used for accelerat<strong>in</strong>g diagnostic processes, help<strong>in</strong>g dur<strong>in</strong>g follow-up,<br />
target<strong>in</strong>g personalized therapies, and ref<strong>in</strong><strong>in</strong>g prognostic previsions. Bio<strong>research</strong> methods currently<br />
employed <strong>in</strong>clude: cell cultures, immunochemistry, molecular biology, b<strong>in</strong>d<strong>in</strong>g and uptake techniques,<br />
HPLC, confocal microscopy. For example, our group recently demonstrated an <strong>in</strong>crease <strong>of</strong> sAPPα�plasma<br />
levels with respect to healthy controls, while no differences were found regard<strong>in</strong>g beta-amyloid (Abeta)<br />
levels. Moreover, we set up an ELISA assay for the determ<strong>in</strong>ation <strong>of</strong> plasma anti-Abeta 1-42 levels, although<br />
no differences were found between AD patients and controls. However, we observed that AD patients not<br />
receiv<strong>in</strong>g acetylchol<strong>in</strong>esterase medications (AChEI) displayed anti-Abeta 1-42 antibodies plasma levels<br />
significantly lower with respect both, healthy controls, and AD patients receiv<strong>in</strong>g AChEI. Hence, we are<br />
currently analyz<strong>in</strong>g the effect <strong>of</strong> the AChEI therapy on the immune response <strong>in</strong> AD patients. A putative<br />
immunomodulatory effect <strong>of</strong> these drugs might eventually further support immunoglobul<strong>in</strong>-based<br />
therapies for treat<strong>in</strong>g dementia. Furthermore, our group extensively studies the <strong>in</strong>teractions exist<strong>in</strong>g<br />
between glutamatergic system, APP process<strong>in</strong>g and signal transduction mechanisms (k<strong>in</strong>ases) <strong>in</strong> peripheral<br />
(platelets, fibroblasts, lymphomonocytes) and cell models (neuroblastoma SHSY5Y). Another<br />
neurobiological <strong>in</strong>terest <strong>of</strong> our group is related to Abeta catabolism. We focused on neprilis<strong>in</strong>, a major<br />
Abeta catabolic enzyme, study<strong>in</strong>g its activity and expression <strong>in</strong> human fibroblasts. Neprilis<strong>in</strong> activity is<br />
reduced <strong>of</strong> ~50% <strong>in</strong> AD versus controls, while the expression <strong>in</strong> unchanged. In vitro “aged” Abeta treatment<br />
reduces neprilis<strong>in</strong> expression <strong>in</strong> both groups, while the activity decreases <strong>in</strong> controls and <strong>in</strong>creases <strong>in</strong> AD
patients, possibly due to a compensatory mechanism; this prelim<strong>in</strong>ary data suggests that Abeta is able to<br />
<strong>in</strong>fluence its own catabolism. A more <strong>in</strong>novative approach for reduc<strong>in</strong>g the toxic effect <strong>of</strong> Abeta consists <strong>in</strong><br />
adm<strong>in</strong>ister<strong>in</strong>g nanoparticles, molecules <strong>of</strong> nanometric dimensions able to b<strong>in</strong>d Abeta limit<strong>in</strong>g its<br />
aggregation and result<strong>in</strong>g toxicity. With<strong>in</strong> an FP7 European project we are test<strong>in</strong>g the biocompatibility <strong>of</strong><br />
various nanoparticles, and their ability to b<strong>in</strong>d Abeta <strong>in</strong> vitro (cultured fibroblasts) and <strong>in</strong> biological fluids<br />
(plasma and serum) <strong>in</strong> order to identify the best candidates for future <strong>in</strong> vivo adm<strong>in</strong>istrations.<br />
In the neuropsychological field, our current <strong>in</strong>terests <strong>in</strong>clude: (a) development and validation <strong>of</strong> multiple<br />
ultrafast tests (5 m<strong>in</strong>utes duration max) <strong>of</strong> the global cognitive status <strong>in</strong> order to propose them as rapid<br />
screen<strong>in</strong>g tools for general practitioners; (b) validation <strong>of</strong> a test <strong>of</strong> divided attention for the differential<br />
diagnosis <strong>of</strong> degenerative dementias; (c) development and validation <strong>of</strong> a novel test <strong>of</strong> denom<strong>in</strong>ation for<br />
the differential diagnosis between mild cognitive impairment (MCI) and dementia; (d) extensive study <strong>of</strong><br />
visuo-spatial functions by a broad test battery, <strong>in</strong> order to def<strong>in</strong>e the differential cognitive pr<strong>of</strong>ile between<br />
Lewy body dementia, corticobasal degeneration and posterior cortical atrophy; (e) study <strong>of</strong> the<br />
experimental neuropsychological (decision mak<strong>in</strong>g, moral judgment, multi-task<strong>in</strong>g, humour appreciation)<br />
and neurobiological correlates <strong>of</strong> BDNF <strong>in</strong> AD, frontotemporal dementia and Lewy body or Park<strong>in</strong>son<br />
dementia; (f) multicentric longitud<strong>in</strong>al cohort study recruit<strong>in</strong>g patients affected by degenerative and<br />
vascular dementias or MCI to be followed for five years by repeatedly adm<strong>in</strong>ister<strong>in</strong>g a neuropsychological<br />
test battery.<br />
F<strong>in</strong>ally, our cl<strong>in</strong>ical department collaborates with the Department <strong>of</strong> Nuclear Medic<strong>in</strong>e - Molecular<br />
Bioimag<strong>in</strong>g Centre for both cl<strong>in</strong>ical and <strong>research</strong> purposes. Currently we are study<strong>in</strong>g the existence <strong>of</strong><br />
correlations between biochemical markers and functional neuroimag<strong>in</strong>g data (PET-SPET). Tracers able to<br />
mark beta-amyloid or microglial activation, among others, might eventually <strong>in</strong>tegrate and confirm the value<br />
<strong>of</strong> the above described peripheral markers.
Nome Piero Parchi M.D., Ph.D.<br />
Contatti<br />
piero.parchi@unibo.it<br />
phone: 051-2092740<br />
fax: 051-2092751<br />
Istituto/Dipartimento Dipartimento di Scienze Neurologiche<br />
Proposta di ricerca<br />
Aree di <strong>in</strong>teresse identificate<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract (estratti) del<br />
progetto<br />
Università di Bologna, Italy<br />
- Biobank<strong>in</strong>g (blood sample, CSF, bra<strong>in</strong> repository…)<br />
- Standardization <strong>of</strong> diagnostic criteria and diagnostic<br />
<strong>in</strong>struments, harmonization and assessment tools<br />
- Early diagnosis; Biomarkers<br />
- Basic <strong>research</strong>: Biochemical characterization <strong>of</strong><br />
abnormal prote<strong>in</strong> aggregates to understand phenotypic<br />
diversity <strong>in</strong> neurodegenerative diseases<br />
1) Molecular Pathology <strong>of</strong> the Human Bra<strong>in</strong>;<br />
2) Development <strong>of</strong> new diagnostic approaches for prion<br />
diseases<br />
3) Validation and search <strong>of</strong> CSF biomarkers for the prediction<br />
<strong>of</strong> the cl<strong>in</strong>ical conversion from mild cognitive impairment<br />
(MCI) to dementia<br />
1) EU, 2) <strong>Italian</strong> M<strong>in</strong>istry <strong>of</strong> Health, 3) Galletti Foundation<br />
1) 5 years (Bra<strong>in</strong>-Net II, project ended December 2009), COST<br />
application currently under evaluation (at f<strong>in</strong>al step).<br />
2) 3 years<br />
3) 3 years<br />
1) Studies on human bra<strong>in</strong> tissue have enabled the discovery<br />
<strong>of</strong> key factors <strong>of</strong> the most common bra<strong>in</strong> diseases. Aβ, tau,<br />
synucle<strong>in</strong> and TDP-43 are outstand<strong>in</strong>g examples <strong>of</strong> prote<strong>in</strong>s<br />
identified <strong>in</strong> diseases such as Alzheimer (AD), Park<strong>in</strong>son (PD)<br />
and Frontotemporal Lobar Degeneration (FTLD). The advent <strong>of</strong><br />
molecular genetic techniques enabl<strong>in</strong>g <strong>in</strong>sights <strong>in</strong>to temporal or
permanent changes <strong>of</strong> genetic activity (epigenetics) and the<br />
identification <strong>of</strong> novel regulators <strong>of</strong> translation (miRNA) have<br />
ushered <strong>in</strong> a new era that makes <strong>in</strong>vestigations <strong>of</strong> human bra<strong>in</strong><br />
tissue still <strong>in</strong>dispensable. In this project ) we will provide high-<br />
quality human bra<strong>in</strong> tissue as an essential <strong>research</strong> resource by<br />
apply<strong>in</strong>g and further develop<strong>in</strong>g a shared database, common<br />
diagnostic criteria and ethical standards at European level.<br />
Furthermore, new technologies will be employed to <strong>in</strong>vestigate<br />
the causes <strong>of</strong> neurodegenerative disorders us<strong>in</strong>g such tissues.<br />
This collaborative group <strong>of</strong> experts (see http://www.bra<strong>in</strong>net-<br />
europe.org) competent <strong>in</strong> all aspects <strong>of</strong> work with human bra<strong>in</strong><br />
tissue will foster European <strong>research</strong> on these devastat<strong>in</strong>g bra<strong>in</strong><br />
diseases.<br />
2) The overall objective <strong>of</strong> this project is to improve the<br />
diagnosis and the prognosis <strong>of</strong> human TSE diseases through the<br />
development <strong>of</strong> new biochemical tests and the optimization <strong>of</strong><br />
already available diagnostic tools. To this aims we will apply<br />
new proteomic approaches to identify TSE-specific patterns <strong>in</strong><br />
the CSF and <strong>in</strong> plasma (or serum) <strong>of</strong> patients with sporadic CJD<br />
and we will characterize novel biochemical properties <strong>of</strong> the<br />
abnormal PrP TSE aggregates that may further improve the<br />
stra<strong>in</strong>-specific diagnosis <strong>of</strong> the disease subtype.<br />
3) As one <strong>of</strong> the Units <strong>in</strong>volved <strong>in</strong> a larger project (see Form<br />
sent by Dr. Gallassi from our Department) we will validate and<br />
search for molecular CSF markers that might be <strong>of</strong> value <strong>in</strong><br />
predict<strong>in</strong>g the conversion from MCI to full-blown dementia and<br />
critical for the monitor<strong>in</strong>g <strong>of</strong> patients once new therapies<br />
become available. We will focus on already established markers<br />
such as A-beta, total tau and fosfo-tau and more recently<br />
discovered molecules such as TDP-43 and progranul<strong>in</strong>. Different<br />
techniques such as Elisa and western blott<strong>in</strong>g will be applied.<br />
The data will be correlated with those obta<strong>in</strong>ed from the<br />
neuroimag<strong>in</strong>g and neuropsychological serial evaluation.
SICILIANO<br />
Analisi biochimica di parametri di stress ossidativo.<br />
Uno dei problemi cl<strong>in</strong>ici più attuali riguardala difficoltà a comprendere se lievi disturbi della memoria <strong>in</strong><br />
età senile siano oppure no segni <strong>in</strong>iziali di Malattia di Alzheimer. A tal proposito va ricordato come<br />
attualmente si faccia riferimento a un quadro cl<strong>in</strong>ico-neurologico quale il decadimento cognitivo lieve<br />
(“Mild Cognitive Impairment o MCI”) ,quale condizione caratterizzata, come appunto il term<strong>in</strong>e <strong>in</strong>dica, da<br />
una lieve compromissione di funzioni mentali, <strong>in</strong> primo luogo la memoria, ma potenzialmente a rischio di<br />
sviluppare nel tempo una malattia di Alzheimer e pertanto da seguire attentamente nel suo ulteriore<br />
decorso. Un altro aspetto fondamentale è <strong>in</strong>oltre rappresentato dal fatto che, <strong>in</strong> assenza di un marcatore<br />
biologico <strong>in</strong> vivo che permetta di fare diagnosi di certezza della malattia <strong>in</strong> vita, assume particolare<br />
importanza la ricerca di parametri di laboratorio che siano <strong>in</strong> grado, <strong>in</strong> aggiunta a fornire elementi<br />
<strong>in</strong>dicativi sulle cause di malattia, di essere <strong>in</strong>dicatori di eventuale rischio, evoluzione e diagnosi precoce<br />
di malattia, oltre che predittivi di risposta al trattamento.<br />
Lo stress ossidativo è stato chiamato <strong>in</strong> causa come fattore implicato nella patogenesi delle malattie<br />
neurodegenerative, <strong>in</strong>clusa la malattia di Alzheimer, <strong>in</strong> base all’osservazione che si ha evidenza precoce<br />
di danno mediato da specie reattive dell’ossigeno, non soltanto a livello del sistema nervoso centrale ma<br />
anche a livello periferico.<br />
Poiché le specie reattive dell’ossigeno sono molecole altamente <strong>in</strong>stabili, la loro misura diretta <strong>in</strong><br />
campioni di plasma o siero può non riflettere la loro reale concentrazione <strong>in</strong> vivo; per tale motivo<br />
vengono dosati solo i prodotti f<strong>in</strong>ali di stress ossidativo. Dist<strong>in</strong>guiamo i biomarker possono essere dist<strong>in</strong>ti<br />
<strong>in</strong> due grandi gruppi:<br />
1. Marker di danno ossidativo alle prote<strong>in</strong>e, ai lipidi e al DNA, che rivelano lo stato di ossidazione di<br />
tali macromolecole e che danno un’idea del grado di gravità del processo degenerativo <strong>in</strong> atto all’<strong>in</strong>terno<br />
della cellula;<br />
2. Marker dello stato antiossidante, che riflettono la capacità totale dei sistemi cellulari, enzimatici<br />
e non enzimatici, di difesa contro l’attacco delle specie chimiche reattive.<br />
Presso il nostro laboratorio sono valutati markers di danno ossidativo alle prote<strong>in</strong>e (AOPP), markers dello<br />
stato antiossidante quali la capacità ferro-riducente del plasma (FRAP) e la concentrazione del glutatione<br />
totale, ridotto e ossidato.<br />
Gli AOPP consistono <strong>in</strong> un <strong>in</strong>sieme di prote<strong>in</strong>e tra cui la tiroglobul<strong>in</strong>a, la γ-globul<strong>in</strong>a, l’album<strong>in</strong>a e la<br />
mioglobul<strong>in</strong>a (Witko-Sarsat et al., 1996).<br />
L’elettr<strong>of</strong>oresi delle prote<strong>in</strong>e mostra che il picco di AOPP ad alto peso molecolare è prevalentemente<br />
dovuto all’album<strong>in</strong>a che appare sotto forma di aggregati che probabilmente derivano da ponti disolfuro<br />
e/o da "cross-l<strong>in</strong>k<strong>in</strong>g" della tiros<strong>in</strong>a; al contrario il picco di AOPP a basso peso molecolare contiene<br />
album<strong>in</strong>a nella sua forma monomerica (Witko-Sarsat et al., 1996). In "vivo" i livelli plasmatici di AOPP<br />
correlano con i livelli di dimeri di tiros<strong>in</strong>a, un marcatore di danno ossidativo delle prote<strong>in</strong>e, e con la<br />
pentossid<strong>in</strong>a, un prodotto di glicosilazione strettamente associato al danno ossidativo delle prote<strong>in</strong>e<br />
(Selmeci et al., 2005). La relazione tra gli AOPP e i prodotti di perossidazione lipidica appare <strong>in</strong>vece poco<br />
chiara. Le attuali conoscenze sembrano <strong>in</strong>dicare che i lipidi non sono necessari per la formazione degli<br />
AOPP, ma che <strong>in</strong> “vivo” possono aumentare tale processo (Witko-Sarsat et al., 1996).<br />
Al valore della FRAP contribuiscono, per circa il 60% l’acido urico, per il 15% l’acido ascorbico, per il 5%<br />
l’α-toc<strong>of</strong>erolo, per il 10% le prote<strong>in</strong>e e per il 5% la bilirub<strong>in</strong>a (Benzie et al., 1996). La metodica che<br />
permette di determ<strong>in</strong>are questo parametro sfrutta la capacità di questi antiossidanti di ridurre il ferro, -<br />
sotto forma di ione ferrico presente nel reattivo FRAP, - a ione ferroso.<br />
La pr<strong>in</strong>cipale funzione del glutatione è quella di operare come antiossidante proteggendo le cellule<br />
dall'azione di specie proossidanti (Dr<strong>in</strong>ger et al., 2000). Le proprietà antiossidanti del glutatione sono
dovute alla presenza del gruppo sulfidrilico della ciste<strong>in</strong>a che gli permette di <strong>in</strong>teragire sia con specie<br />
reattive dell’ossigeno, sia con altre sostanze elettr<strong>of</strong>ile nell’ambito di numerosi sistemi antiossidanti e<br />
non (Pompella et al., 2003). Il glutatione allo stato ridotto (GSH) espleta la sua funzione riducendo i<br />
radicali liberi e convertendosi <strong>in</strong> glutatione ossidato (GSSG), composto da due molecole di glutatione<br />
unite da un ponte disolfuro. In questo senso, il GSH <strong>in</strong>terviene nel metabolismo dell’acqua ossigenata,<br />
degli idroperossidi e di altri perossidi organici, è capace di <strong>in</strong>attivare il radicale idrossile, radicali<br />
perossilici, il peross<strong>in</strong>itrito, l’acido ipocloroso, radicali alcossilici e l’ossigeno s<strong>in</strong>goletto. Può anche<br />
riprist<strong>in</strong>are la forma ridotta di altri antiossidanti come la vitam<strong>in</strong>a E e la vitam<strong>in</strong>a C.<br />
Valutazione cl<strong>in</strong>ica, test da sforzo e prelievi ematici per la valutazione dello stato ossidativo<br />
I parametri di stress ossidativo sopra descritti possono essere studiati sia <strong>in</strong> condizioni basali che dopo<br />
protocolli di esercizio. Le pr<strong>in</strong>cipali sedi di produzione di radicali liberi sono i mitocondri, gli organelli<br />
<strong>in</strong>tracellulari deputati al metabolismo ossidativo; i mitocondri svolgono altresì un ruolo di primo piano<br />
nel mantenere l’omeostasi del calcio e nell’<strong>in</strong>nescare la cascata di segnali che sottendono la<br />
degenerazione cellulare attraverso il meccanismo della apoptosi.<br />
Lo studio della funzione mitocondriale e dello stress ossidativo ad essa connesso può essere valutato<br />
attraverso l’andamento dei parametri ematici di stress ossidativo <strong>in</strong> relazione all’esercizio muscolare.<br />
Esempio di test da sforzo per la valutazione di parametri di stress ossidativo:<br />
I pazienti sono sottoposti a un test di sforzo <strong>in</strong>crementale sui muscoli dell’avambraccio, eseguito con<br />
l’ausilio di un miometro connesso ad un “hand-grip” (Digital Multi-Myometer, MIE Medical Research Ltd.,<br />
Leeds, UK). Il protocollo di esercizio <strong>in</strong>crementale consiste nell’impugnare l’hand-grip del miometro e<br />
contrarre massimamente la mano contro la resistenza <strong>of</strong>ferta dallo stesso, determ<strong>in</strong>ando, <strong>in</strong> Newton, il<br />
livello di contrazione volontaria massimale (CVM). Saranno eseguite, da tutti i pazienti, una serie di fasi<br />
contrattili o “steps”, condotte <strong>in</strong> maniera <strong>in</strong>termittente per un periodo di un m<strong>in</strong>uto, con <strong>in</strong>tervalli di<br />
riposo di 2 m<strong>in</strong>uti tra uno “step” e l’altro. In ciascuno “step” le contrazioni <strong>in</strong>termittenti sono eseguite con<br />
frequenza di una al secondo contro la resistenza richiesta <strong>of</strong>ferta dal miometro. L’esercizio <strong>in</strong>izia con un<br />
primo “step” al 10% della CVM, un secondo “step” al 40% della CVM ed un ultimo “step” al 70% della<br />
CVM. Il paziente potrà seguire su un display lum<strong>in</strong>oso il livello di forza generato <strong>in</strong> ogni contrazione.<br />
Questo tipo di esercizio è pr<strong>in</strong>cipalmente aerobico all’<strong>in</strong>izio del test e diviene progressivamente<br />
anaerobico man mano che aumenta la forza esercitata per progressivo reclutamento delle unità motorie<br />
rapide (Milner-Brown et al., 1973). I prelievi ematici venosi per la determ<strong>in</strong>azione dei marcatori<br />
biochimici di stress ossidativo sono eseguiti a livello basale, dopo il secondo “step”, dopo il terzo “step” e<br />
dopo 15 m<strong>in</strong>uti dalla f<strong>in</strong>e dell’esercizio.
Nome Laura Calzà<br />
Contatti<br />
laura.calza@unibo.it<br />
Tel. +39 051 2097947<br />
Cell. +39 335 310979<br />
Istituto/Dipartimento DIMORFIPA<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse identificata<br />
Multidiscipl<strong>in</strong>ary projects Cognitive decl<strong>in</strong>e <strong>in</strong> multiple sclerosis. Cognitive defects are<br />
recognized as early events <strong>in</strong> MS, not correlated with white matter<br />
lesion. We are <strong>in</strong>terested <strong>in</strong> study<strong>in</strong>g the pathogenesis <strong>of</strong> early<br />
neural distress and lesion <strong>in</strong> MS animal models and neuroprotective<br />
strategies<br />
Standardization <strong>of</strong> diagnostic<br />
criteria and diagnostic<br />
<strong>in</strong>struments, harmonization<br />
and assessment tools<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
Quality control programs for Abeta fragments <strong>in</strong> CSF and plasma<br />
and tau/Ptau <strong>in</strong> CSF us<strong>in</strong>g xMAP platform. Focus on cl<strong>in</strong>ical trials<br />
standardization<br />
Translational medic<strong>in</strong>e for novel diagnostic and therapeutic tools for<br />
neurodegenerative diseases<br />
Jo<strong>in</strong>t Regione Emilia Romagna-University <strong>of</strong> Bologna<br />
3 years, under negotiation<br />
Development <strong>of</strong> a GLP-grade service for drug test<strong>in</strong>g <strong>in</strong> animal<br />
models <strong>of</strong> Alzheimer disease, based on computerized analysis <strong>of</strong><br />
video-track<strong>in</strong>g for learn<strong>in</strong>g and memory performance. Development
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
Titolo progetto<br />
<strong>of</strong> cell-based platform based on neural stem cells derived from<br />
Alzheimer mice for the screen<strong>in</strong>g <strong>of</strong> chemical libraries <strong>of</strong> anti-<br />
Alzheimer drugs.<br />
Effect <strong>of</strong> low-dose <strong>of</strong> ….. <strong>in</strong> chronic adm<strong>in</strong>istration on cognitive<br />
behavior and morphological parameters <strong>in</strong> Tg2576 mouse<br />
Drug Company<br />
(covered by disclosure agreement)<br />
12 months<br />
The project is aimed to evaluate efficacy <strong>of</strong> a novel gammasecretase<br />
<strong>in</strong>hibitor on behavioral performance, histopathology,<br />
biomarkers and synapse morphology and molecular markers <strong>in</strong> mice<br />
curr<strong>in</strong>g the swedish mutation <strong>of</strong> APP. This esperiment will test<br />
efficacy <strong>of</strong> chronic treatment from 5 to 19 months <strong>of</strong> age. Two<br />
doses <strong>of</strong> the test compund and one dose <strong>of</strong> a reference will be<br />
tested <strong>in</strong> transgenic vs wild tipe, age match<strong>in</strong>g mice<br />
Plasma assay <strong>of</strong> Ab40/Ab42 (multiplex X-MAP-based immuno assay<br />
technology) <strong>in</strong> phase 1 cl<strong>in</strong>ical trial<br />
Drug Company<br />
(covered by disclosure agreement)<br />
20 months<br />
Placebo-Controlled, Ascend<strong>in</strong>g S<strong>in</strong>gle-Dose Study to Evaluate the<br />
Safety, Pharmacok<strong>in</strong>etics and Pharmacodynamics <strong>of</strong> …. <strong>in</strong> Healthy<br />
Young Male Subjects. The safety and tolerability <strong>of</strong> five ascend<strong>in</strong>g<br />
oral doses <strong>of</strong> … will be evaluated <strong>in</strong> 6 separate study sessions. In<br />
each <strong>of</strong> the study sessions, subjects will be randomized to … or<br />
placebo treatment. Overall, 60 subjects will participate <strong>in</strong> the study,<br />
48 treated with … and 12 treated with placebo. Our lab <strong>in</strong><br />
committed <strong>in</strong> efficacy variables bl<strong>in</strong>d analysis (Plasma �-amyloid<br />
concentrations, A40/A42 fragments). Jo<strong>in</strong>t QC <strong>in</strong>itiative “round<br />
Rob<strong>in</strong>” study, an <strong>in</strong>ternational <strong>in</strong>terlaboratory evaluation <strong>of</strong> AB 1-<br />
40/1-42 levels from a common plasma sample set, toward<br />
standardization <strong>of</strong> multiplex/multiparametric methods for AB 1-<br />
40/1-42 quantification <strong>in</strong> plasma. Participat<strong>in</strong>g centers, 15; number<br />
<strong>of</strong> samples to analyze, 19.<br />
Remyel<strong>in</strong>ation failure <strong>in</strong> multiple sclerosis: a case <strong>of</strong> <strong>in</strong>flammation<strong>in</strong>duced<br />
tissue hypothyroidism?
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
AISM/FISM<br />
Pr<strong>in</strong>cipla <strong>in</strong>vestigator: Luciana Giard<strong>in</strong>o<br />
2 years<br />
Abstract del progetto This project is aimed to <strong>in</strong>vestigate a possible mechanims for<br />
remyel<strong>in</strong>ation failure <strong>in</strong> multiple sclerosis. This project is aimed to<br />
verify if the <strong>in</strong>flammation associated to demyel<strong>in</strong>ation causes a<br />
defect <strong>of</strong> T4 to T3 conversion or a decreased expression <strong>of</strong> thyroid<br />
hormone receptors (nuclear receptors and membrane transporters)<br />
<strong>in</strong> the nervous tissue, thus lead<strong>in</strong>g to a local/cellular hypothyroidism<br />
and, thus, to the defect <strong>of</strong> white matter repair. This project could<br />
also provide <strong>in</strong>sides for other neurodegenerative disease <strong>in</strong>clud<strong>in</strong>g<br />
white matter alterations, like Alzheimer disease<br />
Nome Laura Calzà<br />
Contatti<br />
laura.calza@unibo.it<br />
Tel. +39 051 2097947<br />
Cell. +39 335 310979<br />
Istituto/Dipartimento DIMORFIPA<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse identificata<br />
Development <strong>of</strong> competitive<br />
animal models for AD<br />
Basic <strong>research</strong><br />
New treatment strategies<br />
GLP grade animal facility and behavioural test<strong>in</strong>g for cognitive<br />
performance <strong>in</strong> AD animal models us<strong>in</strong>g video track<strong>in</strong>g and<br />
computer analysis; screen<strong>in</strong>g <strong>of</strong> new molecules after acute<br />
adm<strong>in</strong>istration<br />
Bra<strong>in</strong> metabolism <strong>of</strong> thyroid hormone: a risk factor for AD? We are<br />
<strong>in</strong>terested <strong>in</strong> explor<strong>in</strong>g possible connections between thyroid<br />
hormone content, receptor and activat<strong>in</strong>g enzyme expression, APP<br />
metabolism and Ab toxicity <strong>in</strong> the bra<strong>in</strong> <strong>in</strong> normal and AD mice.<br />
Recent advances <strong>in</strong> knowledge on thyroid hormone bra<strong>in</strong><br />
metabolism and molecular biology <strong>of</strong> nuclear and membrane<br />
thyroid hormone receptors and transporters <strong>of</strong>fer new possible<br />
targets to explore this topic.
Nome Fabrizio Tagliav<strong>in</strong>i<br />
Contatti<br />
Tel +39 02 2394 2260; Fax +39 02 2394 2101<br />
Email: ftagliav<strong>in</strong>i@istituto-besta.it<br />
Sito web: http://www.istituto-besta.it<br />
Istituto/Dipartimento UO Neuropatologia – Neurologia 5<br />
Fondazione IRCCS Istituto Neurologico “Carlo Besta”<br />
Via Celoria ,11 - 20133 Milano- ITALY<br />
Proposta di ricerca<br />
The <strong>research</strong> group: The Division comprises (i) a Cl<strong>in</strong>ical Unit (Dementia Center) devoted to the diagnosis<br />
and treatment <strong>of</strong> patients with degenerative dementias (over 2000 out-patients and 150 <strong>in</strong>-patients per<br />
year) and (ii) a Laboratory Unit (certified ISO 9001:2000 - Registration Number 26080, dedicated to the<br />
analysis <strong>of</strong> genes and biomarkers associated with degenerative dementias, post-mortem characterization<br />
<strong>of</strong> the disease process and disease-specific prote<strong>in</strong>, and experimental studies on disease pathogenesis and<br />
the development <strong>of</strong> therapeutic strategies. The course <strong>of</strong> action <strong>of</strong> this activity can be expressed as a “Bed<br />
to Bench to Bed” cycle, with the ultimate goal to identify disease-modify<strong>in</strong>g drugs <strong>in</strong> precl<strong>in</strong>ical sett<strong>in</strong>gs<br />
and apply them to patients. In this regard, the Cl<strong>in</strong>ical Unit is currently coord<strong>in</strong>at<strong>in</strong>g a multicentre phase II<br />
cl<strong>in</strong>ical trial supported by AIFA, to test the effectiveness <strong>of</strong> an anti-amyloidogenic molecule identified <strong>in</strong><br />
experimental models. This comprehensive approach has also the great advantage to collect biological<br />
samples (plasma, DNA, CSF and bra<strong>in</strong> tissue) from fully characterized patients. In this regard the<br />
Laboratory Unit is part <strong>of</strong> the Network <strong>of</strong> Excellence “Bra<strong>in</strong>Net” Europe devoted to biobank<strong>in</strong>g,<br />
harmonization <strong>of</strong> assessment tools and standardization <strong>of</strong> diagnostic criteria <strong>of</strong> neurodegenerative<br />
diseases.<br />
The permanent staff <strong>of</strong> the Division is composed by 8 MD and two technicians. In addition, the staff<br />
comprises 13 post-doctoral fellows (7 PhD, 3 MDV, 1 MD, 1 psychologist), 2 PhD students and 1 technician<br />
who are committed to the <strong>research</strong> activities on degenerative dementias with different expertise and<br />
roles. On the overall, the team has large experience <strong>in</strong> a variety <strong>of</strong> techniques spann<strong>in</strong>g from<br />
neuropathology (<strong>in</strong>clud<strong>in</strong>g immunohistochemistry, morphometry, electron microscopy and atomic force<br />
microscopy), to molecular genetics, biochemistry (purification and characterization <strong>of</strong> disease-specific<br />
prote<strong>in</strong>s), cellular and molecular biology, and animal models. The Division <strong>of</strong> Neuropathology is provided<br />
with fully equipped laboratories for histology, immunohistochemistry, electron microscopy, atomic force<br />
microscopy, biochemistry, and molecular and cellular biology, and a 60 sqm BL3 facility. Moreover an<br />
animal facility composed by a 140 sqm environmental controlled area, provided with a HVAC system and<br />
heap-filtered ventilated racks, with separate rooms for ma<strong>in</strong>ta<strong>in</strong><strong>in</strong>g and breed<strong>in</strong>g mouse l<strong>in</strong>es, and<br />
carry<strong>in</strong>g out surgical procedures, collection <strong>of</strong> samples and post-mortem exam<strong>in</strong>ation is available.<br />
Research l<strong>in</strong>es on Alzheimer’s disease<br />
A. Cl<strong>in</strong>ical <strong>research</strong><br />
• Early diagnosis <strong>of</strong> Alzheimer’s disease (AD)<br />
We will characterize the phenotypic expression <strong>of</strong> AD and other degenerative dementias through<br />
multiplex analysis <strong>of</strong> a number <strong>of</strong> variables <strong>in</strong>clud<strong>in</strong>g neuropsychological and behavioural pr<strong>of</strong>ile,<br />
neuroimag<strong>in</strong>g, neurophysiological changes with special attention to sleep abnormalities, genetics, and<br />
plasma and CSF biomarkers. Furthermore, we will carry out longitud<strong>in</strong>al studies <strong>of</strong> presymptomatic<br />
carriers <strong>of</strong> gene mutations to detect early markers <strong>of</strong> conversion to the disease state.<br />
• Cl<strong>in</strong>ical trials<br />
We will carry out phase II and phase III cl<strong>in</strong>ical trials to assess the effectiveness <strong>of</strong> potentially diseasemodify<strong>in</strong>g<br />
drugs, <strong>in</strong>clud<strong>in</strong>g molecules targeted to Aβ and prote<strong>in</strong> tau.<br />
• Identification <strong>of</strong> disease-specific biomarkers<br />
We are currently work<strong>in</strong>g on a peripheral marker <strong>of</strong> AD hav<strong>in</strong>g high specificity and sensitivity, based on<br />
cyclic amplification <strong>of</strong> misfolded Aβ and Aβ oligomers from biological fluids, similar to the PMCA technique<br />
successfully developed by Claudio Soto for prion diseases. The same approach will be used to amplify and<br />
detect misfolded tau.<br />
• Biobank<strong>in</strong>g and neuropathological and molecular characterization <strong>of</strong> patients
We will collect systematically plasma, DNA and CSF from patients with different types <strong>of</strong> dementia and<br />
non-demented <strong>in</strong>dividuals, and perform autopsies for neuropathological characterization and biochemical<br />
and molecular studies.<br />
B. Precl<strong>in</strong>ical <strong>research</strong><br />
• Recessive A673V APP mutation: molecular mechanisms and development <strong>of</strong> a new therapeutic strategy<br />
for sporadic AD<br />
We have recently identified an APP mutation (A673V) that causes early-onset AD only <strong>in</strong> the homozygous<br />
state while the heterozygous carriers are not affected. This mutation strongly boosts the production and<br />
amyloidogenic properties <strong>of</strong> Aβ. However, the <strong>in</strong>teraction <strong>of</strong> A673V-mutated and wild-type peptides<br />
<strong>in</strong>hibits amyloidogenesis and A�-mediated neurotoxicity (Di Fede et al., Science 2009, 323:1473-7). These<br />
f<strong>in</strong>d<strong>in</strong>gs are consistent with the observation that the A673V heterozygous carriers do not develop disease<br />
and <strong>of</strong>fer grounds for a novel therapeutic strategy based on modified Aβ peptides. A <strong>research</strong> priority <strong>of</strong><br />
our lab is to unravel the molecular mechanisms <strong>of</strong> the opposite effects <strong>of</strong> the A673V APP mutation <strong>in</strong><br />
homo- or heterozygous state on amyloidogenesis and to develop a lead compound for AD therapy based<br />
on A673V-modified Aβ peptides or peptido-mimetic molecules. To accomplish these objectives we have<br />
generated a panel <strong>of</strong> transfected cells and transgenic C. elegans express<strong>in</strong>g human APP or Aβ with the<br />
A673V mutation, respectively, and transgenic mouse l<strong>in</strong>es express<strong>in</strong>g A673V-mutated APP <strong>in</strong> the<br />
homozygous or heterozygous state. Furthermore, we have identified a prototypic lead compound<br />
correspond<strong>in</strong>g to a six-mer Aβ peptide with the A673V substitution and are currently work<strong>in</strong>g on bra<strong>in</strong><br />
delivery systems.<br />
• Pathways lead<strong>in</strong>g to tau pathology<br />
A key event <strong>in</strong> AD pathogenesis is the hyperphosphorylation, misfold<strong>in</strong>g and aggregation <strong>of</strong> the<br />
microtubule-associated prote<strong>in</strong> tau lead<strong>in</strong>g to formation <strong>of</strong> neur<strong>of</strong>ibrillary tangles, disruption <strong>of</strong> the<br />
neuronal cytoskeleton and neurodegeneration. Follow<strong>in</strong>g the “Aβ cascade hypothesis” this event is<br />
triggered by aggregated Aβ species, particularly oligomeric assembly <strong>in</strong>termediates. However, the<br />
pathways l<strong>in</strong>k<strong>in</strong>g Aβ and tau pathology are unknown. This is largely due to lack <strong>of</strong> animal models able to<br />
reproduce these two central aspects <strong>of</strong> AD. We have developed a mouse model <strong>of</strong> prion disease that<br />
shows a secondary tauopathy follow<strong>in</strong>g deposition <strong>of</strong> PrP amyloid (Giaccone et al., Neurobiol. Ag<strong>in</strong>g 2008,<br />
29:1864-73). This model will be used to <strong>in</strong>vestigate the molecular basis <strong>of</strong> tau pathology <strong>in</strong>duced by<br />
deposition <strong>of</strong> an amyloid prote<strong>in</strong>.<br />
• Role <strong>of</strong> nuclear tau <strong>in</strong> neurodegeneration <strong>in</strong> fronto-temporal dementia<br />
Tau is the major microtubule-associated prote<strong>in</strong> <strong>of</strong> neurons and its primary role is to promote assembly<br />
and stabilization <strong>of</strong> microtubules required for morphogenesis and axonal transport. We have recently<br />
found that tau plays an important role also <strong>in</strong> chromosome stability, and mutations <strong>in</strong> the tau gene cause<br />
chromosome aberrations <strong>in</strong> peripheral cells <strong>in</strong> addition to formation <strong>of</strong> neur<strong>of</strong>ibrillary tangles <strong>in</strong> neurons<br />
and glial cells. Our objective is to elucidate the molecular mechanisms underly<strong>in</strong>g the genomic <strong>in</strong>stability<br />
due to tau mutations us<strong>in</strong>g cellular models, and to <strong>in</strong>vestigate the contribution <strong>of</strong> the aneuploidy caused<br />
by mutated tau to neurodegeneration us<strong>in</strong>g a transgenic mouse model <strong>of</strong> tauopathy.<br />
Area di <strong>in</strong>teresse identificata<br />
CLINICA/PRECLINICA<br />
- Genetic susceptibility to Alzheimer’s disease (AD)<br />
- Early diagnosis<br />
- Biomarkers<br />
- Develop<strong>in</strong>g competitive animal models to study AD<br />
- Study<strong>in</strong>g early onset forms <strong>of</strong> AD to follow-up disease progression<br />
- C<strong>in</strong>ical trials with or without <strong>in</strong>volvement <strong>of</strong> pharmaceutical companies<br />
- Basic <strong>research</strong><br />
- Biobank<strong>in</strong>g (blood sample, CSF, bra<strong>in</strong> repository…)<br />
- Standardization <strong>of</strong> diagnostic criteria<br />
- New treatment strategies<br />
- Translational <strong>research</strong><br />
F<strong>in</strong>anziamenti ricevuti<br />
1. Titolo progetto Genoproteomics <strong>of</strong> Age Related Disorders (GuARD).
PI: Roberto Sitia Subproject leader: Fabrizio Tagliav<strong>in</strong>i<br />
Ente f<strong>in</strong>anziatore Cariplo Foundation<br />
Durata progetto 01/01/07-30/06/10<br />
Abstract del progetto Project 3.2: Neurodegeneration. The ma<strong>in</strong> goals <strong>of</strong> this project are: (1)<br />
biochemical analysis <strong>of</strong> misfolded prote<strong>in</strong> aggregates from bra<strong>in</strong>s <strong>of</strong><br />
patients with sporadic and genetic forms <strong>of</strong> Alzheimer disease and prion<br />
diseases; (2) proteome analysis on bra<strong>in</strong> tissue from the same patients<br />
and from gender- and age-matched non-demented control <strong>in</strong>dividuals; (3)<br />
proteome analysis on bra<strong>in</strong> tissue from a mouse model <strong>of</strong> variant<br />
Creutzfeldt-Jakob disease.<br />
2. Titolo progetto<br />
Alzheimer's disease: development and validation <strong>of</strong> a multi-factorial<br />
protocol for the diagnosis and follow-up <strong>of</strong> disease <strong>in</strong> the prodromal and<br />
<strong>in</strong>cipient phase. PI: Fabrizio Tagliav<strong>in</strong>i<br />
Ente f<strong>in</strong>anziatore <strong>Italian</strong> M<strong>in</strong>istry <strong>of</strong> Health<br />
Durata progetto 01/01/09-30/06/11<br />
Abstract del progetto This program has two primary aims: (1) the development and validation<br />
<strong>of</strong> a multi-factorial protocol that <strong>in</strong>tegrates molecular, imag<strong>in</strong>g,<br />
neurophysiological, neuropsychological and behavioral data for early<br />
diagnosis <strong>of</strong> AD, <strong>in</strong> particular dur<strong>in</strong>g the stage <strong>of</strong> MCI; (2) the validation <strong>of</strong><br />
this diagnostic protocol with<strong>in</strong> a public health network, and evaluation <strong>of</strong><br />
the health-care, organization and economic implications <strong>of</strong> its transfer to<br />
the NHS.<br />
3. Titolo progetto<br />
Molecular mechanisms underly<strong>in</strong>g synaptic dysfunction <strong>in</strong> prototypic<br />
neurodegenerative diseases related to prote<strong>in</strong> misfold<strong>in</strong>g (nEUROsyn). PI:<br />
Fabrizio Tagliav<strong>in</strong>i<br />
Ente f<strong>in</strong>anziatore European Union/<strong>Italian</strong> M<strong>in</strong>istry <strong>of</strong> Health<br />
Durata progetto 01/02/09-31/01/12<br />
Abstract del progetto This project is designed to <strong>in</strong>vestigate the mechanisms that lead to<br />
synaptic impairment and demise <strong>of</strong> neurons <strong>in</strong> AD and Hunt<strong>in</strong>gton<br />
diseases us<strong>in</strong>g cellular and animal models, and patient material. The ma<strong>in</strong><br />
goals are to: (1) study synaptic dysfunction; (2) identify alterations <strong>of</strong><br />
synaptic and dendritic sp<strong>in</strong>e remodell<strong>in</strong>g; (3) monitor changes <strong>in</strong> receptor<br />
traffick<strong>in</strong>g at the synapse and disturbances <strong>in</strong> traffick<strong>in</strong>g <strong>of</strong> different<br />
cellular components.<br />
4. Titolo progetto<br />
A randomized, double-bl<strong>in</strong>d pilot study versus placebo for the evaluation<br />
<strong>of</strong> the efficacy <strong>of</strong> doxycycl<strong>in</strong>e adm<strong>in</strong>istered by oral route <strong>in</strong> patients<br />
affected by Creutzfeld-Jakob disease. PI: Fabrizio Tagliav<strong>in</strong>i<br />
Ente f<strong>in</strong>anziatore <strong>Italian</strong> <strong>Italian</strong> Agency <strong>of</strong> Drug (AIFA)<br />
Durata progetto 01/09/06-31/08/10<br />
Abstract del progetto This project is a multicentre phase II cl<strong>in</strong>ical trial to test the effectiveness<br />
<strong>of</strong> an anti-amyloidogenic molecule (doxycl<strong>in</strong>e) identified <strong>in</strong> experimental<br />
models.<br />
5. Titolo progetto<br />
Biological markers <strong>of</strong> neurodegeneration to be used <strong>in</strong> cl<strong>in</strong>ical practice for<br />
early and differential diagnosis <strong>of</strong> degenerative dementias, the<br />
identification <strong>of</strong> fast and slow progress<strong>in</strong>g forms, and the evaluation <strong>of</strong><br />
response to treatment. PI: Gianfranco Spalletta, Project Leader: Fabrizio<br />
Tagliav<strong>in</strong>i<br />
Ente f<strong>in</strong>anziatore <strong>Italian</strong> M<strong>in</strong>istry <strong>of</strong> Health<br />
Durata progetto 01/07/08 to 01/06/10<br />
Abstract del progetto The ma<strong>in</strong> goal <strong>of</strong> the project is the identification <strong>of</strong> peripheral markers <strong>of</strong><br />
neurodegeneration <strong>in</strong> Alzheimer disease, Levy body dementia,
frontotemporal dementia and prion diseases to allow (1) early differential<br />
diagnosis, (2) identification <strong>of</strong> fast and slow progress<strong>in</strong>g forms, (3)<br />
evaluation <strong>of</strong> response to therapy.
Nome Gianfranco Spalletta<br />
Contatti<br />
Tel.<br />
E mail<br />
Via Ardeat<strong>in</strong>a, 306 – 00179 Rome<br />
06-51501575<br />
g.spalletta@hsantalucia.it<br />
Istituto/Dipartimento IRCCS Santa Lucia Foundation/Department <strong>of</strong> Cl<strong>in</strong>ical and behavioral<br />
neurology - Neuropsychiatry laboratory<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse identificata Mild Cognitive Impairment<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
Behavioral and Psychological Predictors <strong>of</strong> Cognitive Outcome <strong>in</strong> Subjects<br />
with Mild Cognitive Impairment: the Role <strong>of</strong> Non-conventional<br />
Neuroimag<strong>in</strong>g and Serotonergic Genes<br />
<strong>Italian</strong> M<strong>in</strong>istry <strong>of</strong> Health<br />
01/09/2010 – 31/08/2012<br />
The present project will identify complex behavioural-endophenotypes,<br />
<strong>of</strong> behavioral-neuroimag<strong>in</strong>g-genetics nature, useful for predict<strong>in</strong>g the<br />
cognitive course <strong>of</strong> neurodegenerative dementias start<strong>in</strong>g from their<br />
precl<strong>in</strong>ical phase or MCI. In particular results will help to predict the<br />
outcome <strong>of</strong> the cognitive impairment, the relationship between cortical<br />
and subcortical bra<strong>in</strong> atrophy and neuropsychiatric-neuropsychological<br />
longitud<strong>in</strong>al cl<strong>in</strong>ical manifestations, and a composite neuroimag<strong>in</strong>gseroton<strong>in</strong><br />
genetics <strong>in</strong>dex for better prediction <strong>of</strong> behavioral expression<br />
dur<strong>in</strong>g the 18 months longitud<strong>in</strong>al course <strong>of</strong> the project. In order to do<br />
this an effort will be made to try to make the predictive capability <strong>of</strong> each<br />
cl<strong>in</strong>ical marker reliable for every s<strong>in</strong>gle patient.<br />
Two-hundred people with a diagnosis <strong>of</strong> MCI will be recruited <strong>in</strong> this<br />
study. These patients will be drug free from psychopharmacological and<br />
acetilchol<strong>in</strong>esterase <strong>in</strong>hibitor drugs. One-hundred healthy controls (HC)<br />
will be also recruited. The subjects <strong>in</strong>cluded will carry out an <strong>in</strong> depth<br />
anamnesis evaluation, a diagnostic evaluation for depression, psychosis,<br />
and apathy associated with dementia, and a psycho-behavioural<br />
dimensional assessment us<strong>in</strong>g a battery <strong>of</strong> tests <strong>in</strong>clud<strong>in</strong>g:<br />
Neuropsychiatric Inventory; CERAD Disforia; Dementia Apathy Interview<br />
Rat<strong>in</strong>g, Apathy Scale and Pittsburgh Sleep Quality Index. Moreover, the<br />
subjects will be evaluated through the MMSE, the Mental Deterioration<br />
Battery (MDB) and tests for basic and <strong>in</strong>strumental functional activities.<br />
This is a mixed case-control study (MCI at the basel<strong>in</strong>e vs. HC) and<br />
longitud<strong>in</strong>al study (18-month follow-up only for MCI subjects). The first<br />
six months <strong>of</strong> <strong>research</strong> will be used for the <strong>in</strong>clusion <strong>of</strong> HC and MCI<br />
subjects <strong>in</strong> the study. Each cognitive and behavioural battery tests and<br />
diagnostic criteria will be adm<strong>in</strong>istered <strong>in</strong> the MCI subjects every six<br />
months until 18 months from the first evaluation. Caregiver stress will be<br />
monitored at the basel<strong>in</strong>e and the end <strong>of</strong> the follow-up. Image acquisition<br />
will be done at the basel<strong>in</strong>e: all subjects will be exam<strong>in</strong>ed us<strong>in</strong>g a 3 Tesla
Allegra MR Imager with a standard quadrature head coil. Participants will<br />
undergo the same MR imag<strong>in</strong>g protocol <strong>in</strong>clud<strong>in</strong>g whole-bra<strong>in</strong> T2*weighted,<br />
T1-weighted and DTI scann<strong>in</strong>g. Standard cl<strong>in</strong>ical sequences<br />
(FLAIR and T2-weighted images) will be acquired on the same subjects <strong>in</strong><br />
order to exclude different pathologies. Image process<strong>in</strong>g will be<br />
performed us<strong>in</strong>g FreeSurfer, FSL 4.1 and <strong>in</strong>-house developed s<strong>of</strong>tware <strong>in</strong><br />
Matlab vers. 6.5. The FreeSurfer toolkit will be employed to perform<br />
automatic cortical thickness reconstruction. The high resolution<br />
anatomical T1-weighted images will be also used to extract several region<br />
<strong>of</strong> <strong>in</strong>terest correspond<strong>in</strong>g to subcortical grey matter nuclei. The automatic<br />
segmentation <strong>of</strong> these nuclei will be obta<strong>in</strong>ed with the s<strong>of</strong>tware FIRST,<br />
part <strong>of</strong> the FSL toolkit. Moreover, the DTI data will be coregistered to the<br />
T1 images <strong>in</strong> order to extract regional values <strong>of</strong> diffusion parameters (MD,<br />
FA) known to be <strong>in</strong>dicative <strong>of</strong> tissue microstructure disruption, from the<br />
same nuclei identified <strong>in</strong> the previous step. The DTI data will be also<br />
employed to identify the ma<strong>in</strong> fiber tracts with<strong>in</strong> the white matter. These<br />
tracts that will represent additional regions <strong>of</strong> <strong>in</strong>terest from where<br />
extract<strong>in</strong>g diffusion parameters. Genomic DNA will be purified from 200<br />
microl <strong>of</strong> human whole blood. Polymorphisms and haplotypes <strong>of</strong> several<br />
genes will be analyzed <strong>in</strong> this study: the Apolipoprote<strong>in</strong> epsilon 4 (ApoE4)<br />
variant will be <strong>in</strong>vestigated <strong>in</strong> HC and MCI subjects <strong>in</strong> order to verify its<br />
<strong>in</strong>fluence on behavioural manifestations and symptom progression; the<br />
102T/C polymorphisms <strong>of</strong> the 5HT2A receptor gene will be <strong>in</strong>vestigated<br />
for psychosis behavioural phenotype; to test the hypothesis that allelic<br />
variation <strong>in</strong> 5HTT gene-l<strong>in</strong>ked polymorphic region (5-HTTLPR) genotype is<br />
associated with behavioural syndromes and symptoms and cognitive<br />
outcome, a common 44-base pair deletion (s allele) polymorphism <strong>in</strong> the<br />
5-HTTLPR which associated with reduced 5HTT transcription efficiency<br />
and 5HT uptake <strong>in</strong> vitro will be studied.<br />
The ma<strong>in</strong> focus <strong>of</strong> the <strong>research</strong> <strong>in</strong> the field <strong>of</strong> complex disorders, such as<br />
dementias, is to found new complex predictors which are valid and<br />
reliable <strong>in</strong> the prediction <strong>of</strong> cl<strong>in</strong>ical outcome start<strong>in</strong>g from the early<br />
precl<strong>in</strong>ical phases. In particular, mixed cl<strong>in</strong>ical (behavioural) and biological<br />
(neuroimag<strong>in</strong>g, genetics) predictors may help to precociously identify<br />
those subjects who have a rapid decl<strong>in</strong>e <strong>of</strong> cognitive performances and<br />
those who will respond positively to the treatment with a stable course <strong>of</strong><br />
the cognitive performances and who also improve. Another <strong>in</strong>terest<strong>in</strong>g<br />
possibility is that exist behavioural variables which may predict the course<br />
<strong>of</strong> the illness <strong>in</strong> the case they will not improve at the end <strong>of</strong> the follow-up.<br />
The longitud<strong>in</strong>al branch <strong>of</strong> this project is devoted to identify if this<br />
possibility exists and which are the behavioural predictors <strong>in</strong> terms <strong>of</strong><br />
frequency <strong>of</strong> behavioural disorders at the end <strong>of</strong> the follow-ups.
3. HUMAN/CLINICAL RESEARCH<br />
E. Diagnosis: neuropsychology
Nome Maurizio Balestr<strong>in</strong>o<br />
Contatti<br />
010-3537078/7085/7066; mbalestr<strong>in</strong>o@neurologia.unige.it; FAX 010-<br />
3538631; mobile phone 348-7814154<br />
Istituto/Dipartimento Department <strong>of</strong> Neuroscience, Ophtalmology and Genetics, University <strong>of</strong><br />
Genova, Italy<br />
Proposta di ricerca<br />
Dementia <strong>of</strong> Alzheimer's type represents about 40% <strong>of</strong> the cases where a last will is challenged based on<br />
real or supposed mental <strong>in</strong>capacity <strong>of</strong> the testator (1). Usually, elder people f<strong>in</strong>d <strong>in</strong> their last will the<br />
reassurance that after their death their loved ones will have the resources to carry on their lives <strong>in</strong><br />
agreement with the old person’s desires. However, when a person suffers (or is suspected to suffer) from<br />
Alzheimer’s disease, their last will is <strong>of</strong>ten disputed, on the ground that he/she may not have been<br />
mentally competent to make decisions. Thus, the peace <strong>of</strong> m<strong>in</strong>d that comes with hav<strong>in</strong>g written a<br />
thoughtful last will is considerably decreased. This is a grow<strong>in</strong>g problem, that is already pa<strong>in</strong>ful from the<br />
social po<strong>in</strong>t <strong>of</strong> view (see for example http://elder-abuse-cyberray.blogspot.com/2007/06/where-there-iswill.html).<br />
Moreover, somebody may really take advantage <strong>of</strong> the decl<strong>in</strong><strong>in</strong>g cognitive status <strong>of</strong> an<br />
Alzheimer’s patient to have him/her write a will <strong>in</strong> his/her favor (2). The dispossessed heirs then claim that<br />
the will is <strong>in</strong>valid because the deceased was, at the time <strong>of</strong> writ<strong>in</strong>g it, <strong>in</strong>capacitated due to mental<br />
deterioration (3).<br />
In such cases, a judiciary trial follows, however the judgement is <strong>of</strong>ten difficult, because the writer <strong>of</strong> the<br />
will can no longer be exam<strong>in</strong>ed, and the judgement must rely solely on the retrospective evaluation <strong>of</strong><br />
medical records and <strong>of</strong> witnesses’ statements. S<strong>in</strong>ce both types <strong>of</strong> evidence are <strong>of</strong>ten <strong>in</strong>complete or even<br />
discordant, the expert’s judgement is <strong>of</strong>ten difficult and flawed by obvious limitations. However, the last<br />
will has <strong>of</strong>ten been handwritten. If so, the quality <strong>of</strong> the handwrit<strong>in</strong>g may add very important elements to<br />
the expert’s evaluation, because it shifts the <strong>in</strong>vestigation from the retrospective medical records or<br />
witnesses’ claims to the direct observation <strong>of</strong> the deceased subject’s performance. The act <strong>of</strong> writ<strong>in</strong>g is by<br />
no means a mere movement <strong>of</strong> the hand and f<strong>in</strong>gers, rather it is a cognitive performance from several<br />
viewpo<strong>in</strong>ts. The writer must (1) correctly build <strong>in</strong> his/her m<strong>in</strong>d a suitable sentence, (2) translate words <strong>in</strong>to<br />
graphic symbols, and (3) correctly arrange the writ<strong>in</strong>g <strong>in</strong> rows and columns, <strong>in</strong> such a way that it can be<br />
decoded. The first two tasks relate to speech abilities, and are usually negatively affected by aphasia. The<br />
third task implies a correct visuospatial ability. Both aphasia and visuospatial disturbances are prom<strong>in</strong>ent<br />
symptoms <strong>of</strong> Alzheimer’s type dementia (4). Accord<strong>in</strong>gly, it has been shown that handwrit<strong>in</strong>g is<br />
compromised <strong>in</strong> demented patients (5,6,7,8). Even more important, a correlation exists between severity<br />
<strong>of</strong> handwrit<strong>in</strong>g disruption and severity <strong>of</strong> cognitive deficiency (for example, see Table 3 <strong>of</strong> reference (7)<br />
and Table 7 <strong>of</strong> reference (9)).<br />
While a wrong or confused handwrit<strong>in</strong>g is an obvious sign <strong>of</strong> mental impairment, the evaluation <strong>of</strong> this<br />
item <strong>in</strong> forensic psychiatry is currently hampered by the lack <strong>of</strong> the objective and quantitative tools that<br />
are required for a forensic exam<strong>in</strong>ation. Although it has been demonstrated by several authors that<br />
writ<strong>in</strong>g is altered <strong>in</strong> demented patients (7,5,8,6), these data are difficult to apply to the evaluation <strong>of</strong> a<br />
s<strong>in</strong>gle case, as it is required for judiciary purposes. By contrast, a quantitative score <strong>of</strong> handwrit<strong>in</strong>g that<br />
was able to identify severe mental deterioration with a high probability level would be an <strong>in</strong>valuable tool<br />
<strong>in</strong> the forensic evaluation. In prelim<strong>in</strong>ary <strong>research</strong> we addressed this issue by design<strong>in</strong>g a semiquantitative<br />
standardized score system to evaluate handwrit<strong>in</strong>g, and <strong>in</strong>vestigated both its <strong>in</strong>ter-rater reliability and its<br />
correlation with standard measures <strong>of</strong> cognitive performance (10). In that prelim<strong>in</strong>ary <strong>research</strong> we showed<br />
(a) that our semiquantitative handwrit<strong>in</strong>g scor<strong>in</strong>g method has good <strong>in</strong>terrater agreement and (b) that<br />
there is a statistically significant correlation between the degree <strong>of</strong> cognitive deterioration (as gauged by<br />
the score <strong>of</strong> both M<strong>in</strong>i Mental State Exam<strong>in</strong>ation – MMSE - and <strong>of</strong> Milan Overall Dementia Assessment –<br />
MODA scale) and the handwrit<strong>in</strong>g score (10).<br />
We now propose to cont<strong>in</strong>ue that <strong>research</strong> by test<strong>in</strong>g a larger number <strong>of</strong> patients, to more def<strong>in</strong>itely
quantify the correlation between severity <strong>of</strong> dementia and handwrit<strong>in</strong>g score. Specifically, we plan to (1)<br />
Repeat our <strong>in</strong>vestigation on a larger number <strong>of</strong> patients to hopefully better validate it. (2) Adm<strong>in</strong>ister to<br />
our patients not only the MMSE and MODA tests, but also the Alzheimer´s disease assessment scale (<br />
ADAS-COG), an <strong>in</strong>ternationally accepted tool for the assessment <strong>of</strong> Alzheimer’s disease. (3) Validate the<br />
test by identify<strong>in</strong>g cut<strong>of</strong>f values <strong>of</strong> our handwrit<strong>in</strong>g score that reliably identify persons with normal mental<br />
capacity and persons with mild, moderate or severe dementia.<br />
We will test the hypothesis that (a) a writ<strong>in</strong>g score lower than a certa<strong>in</strong> value (to be <strong>in</strong>dentified <strong>in</strong> ou<br />
proposed <strong>research</strong>) reliably identifies patients whose mental deterioration is m<strong>in</strong>imal or <strong>in</strong>existent and (b)<br />
a writ<strong>in</strong>g score higher than a certa<strong>in</strong> value (writ<strong>in</strong>g score=5 accord<strong>in</strong>g to our prelim<strong>in</strong>ary <strong>research</strong>, see ref.<br />
10) reliably identifies persons with severe mental deterioration.<br />
We will carry out our <strong>research</strong> us<strong>in</strong>g a protocol similar to our published work (10). We will exclude patients<br />
hav<strong>in</strong>g dementia not <strong>of</strong> Alzheimer's type, patients hav<strong>in</strong>g severe motor deficit <strong>in</strong> the dom<strong>in</strong>ant hand, and<br />
patients hav<strong>in</strong>g aphasia so severe as to prevent communication altogether.<br />
We believe that our reseach will help to br<strong>in</strong>g justice and peace <strong>of</strong> m<strong>in</strong>d to Alzheimer's disease victims and<br />
to their families, by provid<strong>in</strong>g a method, scientifically rooted <strong>in</strong> cl<strong>in</strong>ical neuropsychology, that will help<br />
prevent<strong>in</strong>g abuse and exploitation <strong>of</strong> Alzheimer’s disease patients through their last will. While this is <strong>in</strong><br />
itself an important goal <strong>of</strong> our <strong>research</strong>, we also believe that the quantification <strong>of</strong> the relationship<br />
between Alzheimer’s disease and handwrit<strong>in</strong>g will open a new way <strong>of</strong> test<strong>in</strong>g cognitive impairment <strong>in</strong><br />
Alzheimer’s disease, with important fallout to the entire field <strong>of</strong> neuropsychological test<strong>in</strong>g <strong>of</strong> Alzheimer’s<br />
disease patients.<br />
References<br />
8) Shulman, K. I., Cohen, C. A., and Hull, I., (2005) Psychiatric issues <strong>in</strong> retrospective challenges <strong>of</strong><br />
testamentary capacity. Int.J Geriatr.Psychiatry 20:63-69.<br />
9) Peer, I. N., (1981) Wills, testamentary capacity and undue <strong>in</strong>fluence. Bull.Am Acad Psychiatry Law<br />
9:15-22.<br />
10) Redmond, F. C., (1987) Testamentary capacity. Bull.Am Acad Psychiatry Law 15:247-256.<br />
11) Victor, M. and Ropper, A. H., (2005) Adams and Victor's Pr<strong>in</strong>ciples <strong>of</strong> Neurology. 8th Ed.:<br />
12) Werner, Perla, Rosenblum, Sara, Bar-On, Gady, He<strong>in</strong>ik, Jeremia, and Korczyn, Amos, (1-7-2006)<br />
Handwrit<strong>in</strong>g Process Variables Discrim<strong>in</strong>at<strong>in</strong>g Mild Alzheimer's Disease and Mild Cognitive<br />
Impairment. Journals <strong>of</strong> Gerontology Series B: Psychological Sciences and Social Sciences 61:228-<br />
236.<br />
13) Croisile, B., (2005) [Writ<strong>in</strong>g, ag<strong>in</strong>g and Alzheimer's disease]. Psychol Neuropsychiatr.Vieil. 3:183-<br />
197.<br />
14) Silveri, Maria Cater<strong>in</strong>a, Corda, Francesca, and Di Nardo, Miriam, (2007) Central and peripheral<br />
aspects <strong>of</strong> writ<strong>in</strong>g disorders <strong>in</strong> Alzheimer's disease. J Cl<strong>in</strong> Exp Neuropsychol. 29:179-186.<br />
15) Forbes, Katr<strong>in</strong>a E., Shanks, Michael F., and Venneri, Annalena, (1-3-2004) The evolution <strong>of</strong><br />
dysgraphia <strong>in</strong> Alzheimer's disease. Bra<strong>in</strong> Research Bullet<strong>in</strong> 63:19-24.<br />
16) Luzzatti, Claudio, Laiacona, Marcella, and Agazzi, Daniela, (2003) Multiple patterns <strong>of</strong> writ<strong>in</strong>g<br />
disorders <strong>in</strong> dementia <strong>of</strong> the Alzheimer type and their evolution. Neuropsychologia 41:759-772.<br />
17) Fontana P, Dagn<strong>in</strong>o F, Cocito L, Balestr<strong>in</strong>o M. (2008) Handwrit<strong>in</strong>g as a gauge <strong>of</strong> cognitive status: a<br />
novel forensic tool for posthumous evaluation <strong>of</strong> testamentary capacity. Neurol Sci. 29(4):257-61.<br />
18) Brazzelli, M., Capitani, E., Della Sala, S., Sp<strong>in</strong>nler, H., and Zuffi, M., (1994) A neuropsychological<br />
<strong>in</strong>strument add<strong>in</strong>g to the description <strong>of</strong> patients with suspected cortical dementia: the Milan<br />
overall dementia assessment. J Neurol Neurosurg.Psychiatry 57:1510-1517.<br />
19) Folste<strong>in</strong>, M. F., Rob<strong>in</strong>s, L. N., and Helzer, J. E., (1983) The M<strong>in</strong>i-Mental State Exam<strong>in</strong>ation. Archives<br />
<strong>of</strong> General Psychiatry 40:812.<br />
Area di <strong>in</strong>teresse identificata - Standardization <strong>of</strong> diagnostic criteria and diagnostic
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto //<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
//<br />
//<br />
<strong>in</strong>struments, harmonization and assessment tools<br />
- Multidiscipl<strong>in</strong>ary projects
Responsabile: Angiola Maria Fasanaro (Neurologo)<br />
Collaboratori: Raffaele Rea (Volontario Neuropsicologo)<br />
Anna Carotenuto ( Volontario Neuropsicologo)<br />
Maila D’Anonio (Volontario Neuropsicologo)<br />
Luisa Colucci ( Tiroc<strong>in</strong>ante Neuropsicologo)<br />
Sabr<strong>in</strong>a Carpi ( Tiroc<strong>in</strong>ante Neuropsicologo)<br />
Massimiliano Bosco ( Tiroc<strong>in</strong>ante Neuropsicologo)<br />
Ivana Mol<strong>in</strong>o ( Tiroc<strong>in</strong>ante Neuropsicologo)<br />
Gabriella F<strong>in</strong>izio (Tiroc<strong>in</strong>ante Neuropsicologo)<br />
Antonio Ziello ( Tiroc<strong>in</strong>ante Neuropsicologo)<br />
La Unità Valutativa Alzheimer, da me diretta è attiva dal 2000, e fa parte della Struttura Semplice di<br />
Malattie Involutive Cerebrali, Dipartimento di Neuroscienze, AORN "A. Cardarelli".<br />
Le attività dell’ ambulatorio sono prevalentemente svolte su soggetti geriatrici.<br />
L’esperienza maturata nel corso di 10 anni di attività ha permesso di valutare oltre 900 pazienti , ed<br />
attualmente circa 400 sono <strong>in</strong> terapia regolare. I dati sono raccolti <strong>in</strong> cartelle cl<strong>in</strong>iche ad hoc ed archiviati<br />
elettronicamente.<br />
I protocolli seguono le L<strong>in</strong>ee Guida Internazionali e si avvalgano dell’ applicazione di test neuropsicologici<br />
specifici di appr<strong>of</strong>ondimento. Particolare attenzione viene dedicata all’ amnesic/non amnesic Mild Cognitive<br />
Impairment e ai fattori vascolari associati alle demenze.<br />
I pazienti sono controllati a distanza di uno, tre e sei mesi dall’<strong>in</strong>izio della terapia, ed ogni sei mesi<br />
successivamente.<br />
Oltre alle attività diagnostiche e di monitoraggio l’Unità svolge un servizio di counsel<strong>in</strong>g diretto ai caregiver<br />
e programmi di riabilitazione diretti a preservare capacità residue.<br />
Attualmente il centro si avvale della collaborazione di 9 neuropsicologi tra volontari e tiroc<strong>in</strong>anti che<br />
costantemente si occupano delle attività ambulatoriali e di ricerca. In quest’ ambito è stata svolta una<br />
collaborazione regolare nel triennio 2005-2007 con L’ Università di Tunisi per un progetto di<br />
implementazione delle metodiche neuropsicologiche.(progetto f<strong>in</strong>anziato dal M<strong>in</strong>istero degli Affari Esteri.)<br />
Abbiamo una collaborazione stabile con la Cattedra di Neuropsicologia Cl<strong>in</strong>ica della Seconda Università<br />
degli Studi di Napoli. e con il Dipartimento di Medic<strong>in</strong>a Sperimentale e Sanità Pubblica dell’Università di<br />
Camer<strong>in</strong>o. E <strong>in</strong> corso di pubblicazione una ricerca realizzata <strong>in</strong>sieme all’Università Orientale di Napoli e all’<br />
Università La Sapienza di Roma.
I pr<strong>in</strong>cipali progetti di ricerca attualmente attivi<br />
D.<br />
1) Caratteristiche neuropsicologiche differenziali tra pazienti con Demenza fronto-temporale e con<br />
variante frontale della Malattia di Alzheimer.<br />
2) Il contributo del network frontale alla genesi delle alluc<strong>in</strong>azioni <strong>in</strong> pazienti con malattia di Alzheimer e<br />
con malattia di Park<strong>in</strong>son.<br />
3) I fenomeni attrattivi spaziali ed il clos<strong>in</strong>g-<strong>in</strong><br />
4) Caratteristiche fMRI del Mild Cognitive Impairment Amnesico.<br />
5) Caratteristiche neuropsicologiche delle varianti atipiche della Malattia di Alzheimer.<br />
6) Valutazione cognitiva e monitoraggio degli effetti terapeutici dei trattamenti farmacologici<br />
(Rivastigm<strong>in</strong>a patch, Precursore Col<strong>in</strong>ergico Col<strong>in</strong>a alfoscerato, RO5313534 ) sui s<strong>in</strong>tomi cognitivi e<br />
comportamentali della malattia di Alzheimer e nelle forme con danno vascolare associato.<br />
7) Analisi dei costi sociali ed economici delle demenze.<br />
8) Arte visiva come proposta di riabilitazione cognitiva e motivazionale<br />
9) Depressione e Malattia di Alzheimer studio sui correlati gene-ambiente e risposta al trattamento<br />
farmacologico.
Nome Roberto Gallassi<br />
Contatti<br />
roberto.gallassi@unibo.it<br />
Istituto/Dipartimento Department <strong>of</strong> Neurological Sciences, University <strong>of</strong> Bologna<br />
Proposta di ricerca<br />
Area di <strong>in</strong>teresse identificata Earli diagnosis<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
1) Centre for the Neurological Study <strong>of</strong> Bra<strong>in</strong> Ag<strong>in</strong>g – Gallassi<br />
Roberto<br />
2) Neurogenetic Unit – Carelli Valerio<br />
3) Neuropathology Unit – Parchi Piero<br />
Department <strong>of</strong> Internal Medic<strong>in</strong>e, Ag<strong>in</strong>g and Nephrology, University<br />
<strong>of</strong> Bologna<br />
1) MR Spectroscopy Unit – Lodi Raffaele<br />
Predictors <strong>of</strong> conversion from MCI to dementia<br />
Ente f<strong>in</strong>anziatore Fondazione G<strong>in</strong>o Galletti<br />
Durata progetto 3 years<br />
Abstract del progetto<br />
Background<br />
MCI is a well known cl<strong>in</strong>ical condition <strong>in</strong>termediate between normal<br />
age<strong>in</strong>g and dementia. It is not completely ascerta<strong>in</strong>ed if this entity is<br />
a beg<strong>in</strong>n<strong>in</strong>g <strong>of</strong> a dementia or a cl<strong>in</strong>ical syndrome which can have<br />
different outcomes. Anyway, the annual conversion rate <strong>of</strong> MCI to<br />
dementia is variable <strong>in</strong> different previous studies, rang<strong>in</strong>g from<br />
about 4% to 12% or more. The <strong>in</strong>vestigated factors <strong>of</strong> conversion<br />
taken <strong>in</strong>to account are cl<strong>in</strong>ical aspects, neuropsychological tasks,<br />
conventional and functional neuroimag<strong>in</strong>g measures, biological<br />
markers and genetic factors.<br />
Previous neuropsychological studies <strong>in</strong>dicates that MCI may be<br />
characterized by subtle impairment <strong>in</strong> learn<strong>in</strong>g and delayed recall,
particularly <strong>in</strong> tasks <strong>of</strong> episodic memory and visuospatial memory, <strong>in</strong><br />
executive functions, phonemic and semantic verbal fluency, etc. In<br />
our recent study, we found that a behavioural memory battery,<br />
visual attention, long-term verbal memory tasks and<br />
Neuropsychiatric Inventory caregiver distress and apathy scores,<br />
resulted <strong>in</strong> <strong>in</strong>dependent predictors <strong>of</strong> conversion to dementia. We<br />
also found that s<strong>in</strong>gle doma<strong>in</strong> impairment, <strong>in</strong>clud<strong>in</strong>g memory, has a<br />
m<strong>in</strong>or probability to develop dementia than multiple doma<strong>in</strong><br />
impairment.<br />
Rationale<br />
We hypothesize that some cognitive functions and<br />
neuropsychological tasks are more sensitive <strong>in</strong> predict<strong>in</strong>g the<br />
conversion <strong>of</strong> dementia <strong>in</strong> relationship with modifications <strong>in</strong> other<br />
cl<strong>in</strong>ical, biochemical, genetic and neuroimag<strong>in</strong>g f<strong>in</strong>d<strong>in</strong>gs.<br />
Aim<br />
The aims <strong>of</strong> this project are:<br />
- to evaluate at basel<strong>in</strong>e demographic features, cl<strong>in</strong>ical<br />
characteristics, cognitive and behavioural pr<strong>of</strong>ile, biochemical<br />
and genetic f<strong>in</strong>d<strong>in</strong>gs <strong>in</strong> a sample <strong>of</strong> MCI patients <strong>of</strong> amnesic or<br />
not amnesic type and with s<strong>in</strong>gle or multiple doma<strong>in</strong><br />
impairment.<br />
- to perform cl<strong>in</strong>ical and MR neuroimag<strong>in</strong>g longitud<strong>in</strong>al<br />
observation dur<strong>in</strong>g three years <strong>of</strong> the MCI sample, evaluat<strong>in</strong>g<br />
the evolution <strong>of</strong> the s<strong>in</strong>gle patients, <strong>in</strong> particular the conversion<br />
to dementia<br />
- to correlate with a multi-dimensional approach the relationship<br />
between cl<strong>in</strong>ical, cognitive and behavioural f<strong>in</strong>d<strong>in</strong>gs and the<br />
other methods <strong>of</strong> <strong>in</strong>vestigation such as quantitative MR<br />
neuroimag<strong>in</strong>g measures, haematic and cerebrosp<strong>in</strong>al fluid<br />
biological data and the genetic pr<strong>of</strong>ile <strong>of</strong> patients<br />
- to evaluated the <strong>in</strong>dependent predictors <strong>of</strong> conversion from<br />
MCI to the various type <strong>of</strong> dementia
F. Biobank<strong>in</strong>g Bio<strong>in</strong>formatics
3. HUMAN/CLINICAL RESEARCH<br />
G. Ambient assisted liv<strong>in</strong>g and socioeconomics
Roberto Monastero, MD, PhD<br />
Lab <strong>of</strong> Epidemiology and Psychology <strong>of</strong> Ag<strong>in</strong>g and Dementia<br />
Dept <strong>of</strong> Cl<strong>in</strong>ical Neuroscience<br />
University <strong>of</strong> Palermo<br />
Via La Loggia 1<br />
90129 - Palermo, Italy<br />
Tel. +39-091-6555185<br />
Fax. +39-091-6555113<br />
email. roberto.monastero@ki.se<br />
roberto.monastero@unipa.it<br />
PROGETTO2<br />
Type: Ambient Assisted Liv<strong>in</strong>g (AAL) Jo<strong>in</strong>t Program, 2008<br />
Title: Home-based Empowered Liv<strong>in</strong>g for Park<strong>in</strong>son’s disease Patients (HELP)<br />
Responsibles: Pr<strong>of</strong>. Giusepp<strong>in</strong>a Campisi, Dr. Roberto Monastero<br />
Amount <strong>of</strong> fund: .........................<br />
Lenght: 3-year project<br />
Abstract<br />
Medical and social development have produced remarkable changes <strong>in</strong> the population distribution at<br />
worldwide level, lead<strong>in</strong>g to a dramatical <strong>in</strong>crease <strong>in</strong> the life expectancy <strong>of</strong> the human population. the higher<br />
life expectancy is usually associated with the appearance <strong>of</strong> chronic conditions, such as Park<strong>in</strong>son's disease<br />
(PD), and associated comorbidites, which burdens and have a great impact <strong>in</strong> the quality <strong>of</strong> life <strong>of</strong> both the<br />
persons suffer<strong>in</strong>g the illness and his/her relatives and caregivers. Besides, chronic conditions also derive <strong>in</strong><br />
higher costs for the care delivery process, becom<strong>in</strong>g a problem for the whole society. In this sense, the<br />
technological advances <strong>of</strong> the last decades can, and should, provide solutions to better manage the<br />
treatment for the patients, reduc<strong>in</strong>g the social and economic impact <strong>of</strong> the chronic conditions. The Homebased<br />
Empowered Liv<strong>in</strong>g for Park<strong>in</strong>son’s disease Patients project will <strong>in</strong>clude a system able to adm<strong>in</strong>ister<br />
drug therapy <strong>in</strong> a controlled and either cont<strong>in</strong>uous or on-demand basis, to control disease progression and<br />
to mitigate PD symptoms. Accord<strong>in</strong>gly, it will give a comprehensive service to help Park<strong>in</strong>son's patients to<br />
better cope with their illness and reduce comorbidity.
Country: ITALY<br />
Contact person: Alessandra Pedrocchi (Politecnico di Milano)<br />
Date: 14th Jan 2010<br />
I) Strategic Issues<br />
TOPIC 1<br />
Neuro-rehabilitation and bra<strong>in</strong> functional imag<strong>in</strong>g: rehabilitation customization driven by best<br />
exploitation <strong>of</strong> cerebral plasticity and health system susta<strong>in</strong>ability<br />
The spread<strong>in</strong>g <strong>of</strong> neuro-motor pathologies has a great impact on the healthcare system European<br />
Countries, be<strong>in</strong>g among the first causes <strong>of</strong> death (stroke is the third) but utmost be<strong>in</strong>g the first case <strong>of</strong> high<br />
severity long-term disabilities. The recovery and the progress <strong>of</strong> neuromotor diseases is strongly affected<br />
by the pathogenesis but also by the rehabilitation tra<strong>in</strong><strong>in</strong>g, which has the purpose to best exploit the<br />
cerebral plasticity govern<strong>in</strong>g neural motor control reorganization.<br />
Beside the traditional therapist assisted tra<strong>in</strong><strong>in</strong>g, different novel solutions has spread <strong>in</strong> the latest years<br />
based on robotic systems, functional electrical stimulation (neuroprostheses) and hybrid systems where<br />
robots and electrical stimulation are <strong>in</strong>tegrated.<br />
Nonetheless, the <strong>in</strong>ternational scientific community still lack <strong>of</strong> a complete well supported comparative<br />
validation <strong>of</strong> these approaches and consequently a specific customization <strong>of</strong> the best tra<strong>in</strong><strong>in</strong>g cocktail for<br />
each patient is still not documented by scientific results and it is ma<strong>in</strong>ly devoted to cl<strong>in</strong>ician personal<br />
convictions and experience.<br />
Especially, we claim that <strong>in</strong> term <strong>of</strong> motor recovery and motor relearn<strong>in</strong>g, i.e. cerebral re-organization,<br />
there is no clear scientific substrate to support the use <strong>of</strong> robotic devices and/or neuroprostheses aside or<br />
<strong>in</strong> alternative to standard rehabilitation.<br />
However, <strong>in</strong> the latest decade the possibility to <strong>in</strong>vestigate <strong>in</strong>-vivo cerebral activations associated to<br />
movement execution has become accessible , thanks to fMRI, EEG and fNIRS,…<br />
The challenge to be tackle <strong>in</strong> the next future is to <strong>in</strong>tegrate these two aspects aim<strong>in</strong>g at study<strong>in</strong>g the<br />
impact <strong>of</strong> rehabilitation selections on the cerebral plasticity reorganization <strong>in</strong> neuromotor pathologies.<br />
Beside the efficacy <strong>of</strong> those methods and their best exploitation, it also needs to be tested the<br />
susta<strong>in</strong>ability <strong>of</strong> these solutions for the long term economical, environmental and social impact <strong>of</strong><br />
biomedical technologies <strong>in</strong> the rehabilitation <strong>of</strong> neuromotor pathologies.
Nome Alberto Pilotto<br />
Contatti<br />
Phone: +39 0882 410271<br />
Fax: +39 0882 410271<br />
E-mail: alberto.pilotto@operapadrepio.it<br />
Istituto/Dipartimento Unità Operativa di Geriatria & Laboratorio di Gerontologia-Geriatria<br />
Dipartimento di Scienze Mediche<br />
IRCCS Casa Sollievo della S<strong>of</strong>ferenza<br />
Viale Cappucc<strong>in</strong>i, 1 – 71013 San Giovanni Rotondo (FG)<br />
Proposta di ricerca<br />
Sporadic Alzheimer’s disease (AD) is a progressive neurodegenerative disorder occurr<strong>in</strong>g predom<strong>in</strong>antly <strong>in</strong><br />
older age. The prevalence <strong>of</strong> AD rise from 20% after 75 years to 30% after 85 years, and about 5% <strong>of</strong><br />
people aged 65 years or older have AD. With about 3 to 4 million people affected <strong>in</strong> the United States and<br />
about 350,000 new cases per year, AD is the most frequent cause <strong>of</strong> dementia <strong>in</strong> U.S. and <strong>in</strong> Western<br />
countries. Among the ma<strong>in</strong> cause lead<strong>in</strong>g to AD, the deficit <strong>of</strong> chol<strong>in</strong>ergic system plays a major role.<br />
Accord<strong>in</strong>gly, one <strong>of</strong> the most common therapy for the symptomatic treatment <strong>of</strong> AD is the block <strong>of</strong><br />
acetylchol<strong>in</strong>esterase (AChE) by means <strong>of</strong> acetylchol<strong>in</strong>esterase <strong>in</strong>hibitors. The <strong>in</strong>hibition <strong>of</strong> AChE <strong>in</strong>creases<br />
the concentration <strong>of</strong> acetylchol<strong>in</strong>e (ACh) <strong>in</strong> the synaptic cleft, thus restor<strong>in</strong>g the physiological effects <strong>of</strong><br />
ACh with<strong>in</strong> the central nervous system. Recent studies reported a significant benefits <strong>of</strong><br />
acetylchol<strong>in</strong>esterase <strong>in</strong>hibitors vs placebo on cognitive function, activities <strong>of</strong> daily liv<strong>in</strong>g, and behavior.<br />
These improvements, however, are not always detectable <strong>in</strong> cl<strong>in</strong>ical practice. Thus, it has been recently<br />
suggested that the detection <strong>of</strong> improvements on cognitive function, activities <strong>of</strong> daily liv<strong>in</strong>g, and behavior<br />
may be obta<strong>in</strong>ed by the concomitant use <strong>of</strong> drugs act<strong>in</strong>g on other pathogenetic AD mechanism. In<br />
particular the European Medical Agency (EMEA) recommend the use <strong>of</strong> the AChE <strong>in</strong>hibitors donepezil and<br />
rivastigm<strong>in</strong>e <strong>in</strong> mild-to-moderate AD, and the addition <strong>of</strong> memant<strong>in</strong>e <strong>in</strong> moderate-to-severe AD.<br />
Memant<strong>in</strong>e block the glutamate receptor, limit<strong>in</strong>g the uncontrolled entrance <strong>of</strong> Ca 2+ ion <strong>in</strong> the<br />
postsynaptic neuron, thus delay<strong>in</strong>g the Ca 2+ -excess neurodegeneration. Most studies reported that<br />
<strong>in</strong>ter<strong>in</strong>dividual differences <strong>in</strong> response to these drugs may be due to variability <strong>in</strong> drug metabolism related<br />
to behavioral, cl<strong>in</strong>ical, and genetic factors, ma<strong>in</strong>ly hereditary polymorphisms <strong>of</strong> drug-metaboliz<strong>in</strong>g and<br />
drug-transport<strong>in</strong>g enzymes. F<strong>in</strong>al objective <strong>of</strong> this proposal is to identify the genetic component<br />
underly<strong>in</strong>g the response/non response to the most common drugs currently used <strong>in</strong> the treatment <strong>of</strong> AD,<br />
i.e. donepezil, rivastigm<strong>in</strong>e and memant<strong>in</strong>e, throughout the follow<strong>in</strong>g specific objectives: 1) identification<br />
<strong>of</strong> significant difference <strong>in</strong> the distribution <strong>of</strong> the genotypes <strong>of</strong> the CYP2D6 gene polymorphisms among<br />
patients responders/non-responders to donepezil treatment; 2) identification <strong>of</strong> the specific DNA<br />
alteration produc<strong>in</strong>g modifications <strong>in</strong> the CYP2D6 enzyme activity; 3) confirmation <strong>of</strong> the modification <strong>of</strong><br />
the enzyme activity by means <strong>of</strong> donepezil dosage <strong>in</strong> vivo; 4) identification <strong>of</strong> significant difference <strong>in</strong> the<br />
distribution <strong>of</strong> the genotypes <strong>of</strong> the acetylchol<strong>in</strong>esterase gene polymorphisms among patients<br />
responders/non-responders to rivastigm<strong>in</strong>e treatment; 5) identification <strong>of</strong> the specific DNA alteration<br />
produc<strong>in</strong>g modifications <strong>in</strong> the acetylchol<strong>in</strong>esterase-mediated hydrolysis <strong>of</strong> rivastigm<strong>in</strong>e; 6) confirmation<br />
<strong>of</strong> the modification <strong>of</strong> the enzyme activity by means <strong>of</strong> rivastigm<strong>in</strong>e dosage <strong>in</strong> vivo; 7) identification <strong>of</strong><br />
significant difference <strong>in</strong> the distribution <strong>of</strong> the genotypes <strong>of</strong> the OCT2 gene polymorphisms among<br />
patients responders/non-responders to memant<strong>in</strong>e treatment; 8) identification <strong>of</strong> the specific DNA<br />
alteration produc<strong>in</strong>g modifications <strong>in</strong> the OCT2 transporter <strong>of</strong> memant<strong>in</strong>e; 9) confirmation <strong>of</strong> the<br />
modification <strong>of</strong> the enzyme activity by means <strong>of</strong> memant<strong>in</strong>e dosage <strong>in</strong> vivo. We expected that the<br />
identification <strong>of</strong> functional polymorphisms <strong>in</strong> the CYP2D6, AChE and OCT2 genes may <strong>in</strong>fluence the cl<strong>in</strong>ical<br />
efficacy <strong>of</strong> donepezil, rivastigm<strong>in</strong>e and memant<strong>in</strong>e <strong>in</strong> AD patients, and may be useful <strong>in</strong> identify<strong>in</strong>g<br />
subgroups <strong>of</strong> AD patients with different cl<strong>in</strong>ical response to treatment. Criteria and <strong>in</strong>dicators to verify
esults are: 1) the number <strong>of</strong> patients enrolled <strong>in</strong> the study <strong>in</strong> the first 6 months; 2) the number <strong>of</strong><br />
genotypes <strong>in</strong>vestigated at the end <strong>of</strong> the 1 th year <strong>of</strong> the project; 3) the number <strong>of</strong> specific gene alteration<br />
<strong>in</strong>fluenc<strong>in</strong>g the enzyme activity at the 2 nd year <strong>of</strong> the project; 4) the quantitative data obta<strong>in</strong>ed from<br />
plasma drug dosage at the end <strong>of</strong> the 2 nd year <strong>of</strong> the project. This project is coherent with the m<strong>in</strong>isterial<br />
guidel<strong>in</strong>es for the I.R.C.C.S. and well <strong>in</strong>tegrate the cl<strong>in</strong>ical practice <strong>in</strong> neurology.<br />
Area di <strong>in</strong>teresse identificata<br />
F<strong>in</strong>anziamenti ricevuti<br />
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
Pharmacogenetics <strong>of</strong> drugs for Alzheimer’s Disease<br />
Effect <strong>of</strong> weight loss on metabolic, functional, cognitive status and<br />
biological markers <strong>of</strong> longevity <strong>in</strong> obese frail elderly<br />
M<strong>in</strong>istero della Salute<br />
Two years<br />
Obesity, and <strong>in</strong> particular abdom<strong>in</strong>al obesity causes serious metabolic and<br />
medical complications and impairs quality <strong>of</strong> life. Moreover, <strong>in</strong> elderly<br />
persons, obesity can lead to frailty by promot<strong>in</strong>g chronic <strong>in</strong>flammation<br />
and by exacerbat<strong>in</strong>g the decl<strong>in</strong>e <strong>in</strong> strength, endurance, balance and<br />
mobility associated with ag<strong>in</strong>g and physical <strong>in</strong>activity. Weight loss,<br />
<strong>in</strong>duced by calorie restriction and/or physical exercise, simultaneously<br />
improves multiple metabolic risk factors for cardiovascular disease and<br />
other medical abnormalities associated with obesity, and reduce<br />
morbidity and mortality. However, the appropriate treatment for obesity<br />
<strong>in</strong> elderly persons is controversial because <strong>of</strong> the potential harmful<br />
effects <strong>of</strong> weight loss on bone and muscle mass. It has been reported that<br />
weight loss can also modify biological pathways at the cellular level.<br />
Insul<strong>in</strong> and <strong>of</strong> <strong>in</strong>sul<strong>in</strong>-like growth factor-1 (IGF-1) have been <strong>in</strong>volved <strong>in</strong><br />
cellular caloric equilibrium and other mechanisms, i.e. oxidative stress<br />
and <strong>in</strong>flammation. Thus genetic polymorphisms <strong>in</strong> genes <strong>in</strong>volved <strong>in</strong> these<br />
metabolic pathways such as apolipoprote<strong>in</strong> E (APOE), sterol regulatory<br />
element-b<strong>in</strong>d<strong>in</strong>g prote<strong>in</strong> cleavage-activat<strong>in</strong>g prote<strong>in</strong> (SCAP), peroxisome<br />
proliferators-activated receptor gamma-2 (PPR�), �-2B-adrenergic<br />
receptor (ADRA2B), acyl-CoA synthetase 5 (ACSL5) and <strong>in</strong>terleuk<strong>in</strong>-6 (IL-6)<br />
may <strong>in</strong>fluence the effect <strong>of</strong> weight loss on biological mechanisms and<br />
possibly on functional and cognitive status <strong>in</strong> the frail elderly. It is possible<br />
that weight loss <strong>in</strong> obese elderly persons can be beneficial by improv<strong>in</strong>g<br />
metabolic, functional and cognitive status, or harmful by caus<strong>in</strong>g a<br />
decrease <strong>in</strong> muscle and bone mass. However, the cl<strong>in</strong>ical and<br />
physiological effects <strong>of</strong> weight loss <strong>in</strong> obese elderly subjects have never<br />
been carefully evaluated. Thus, appropriate treatment for this rapidly<br />
<strong>in</strong>creas<strong>in</strong>g segment <strong>of</strong> the elderly population rema<strong>in</strong>s controversial. The<br />
purpose <strong>of</strong> this project is to advance our scientific knowledge by<br />
determ<strong>in</strong><strong>in</strong>g the effects <strong>of</strong> weight loss on metabolic, functional and<br />
cognitive status <strong>in</strong> obese elderly subjects. Moreover, we will evaluate the<br />
role <strong>of</strong> weight loss on biological markers <strong>of</strong> metabolic health and<br />
longevity, i.e. serum level <strong>of</strong> Insul<strong>in</strong>, <strong>in</strong>sul<strong>in</strong>-like growth factor-1 (IGF-1),<br />
transform<strong>in</strong>g growth factor-� (TGF-�), tumor-necrosis factor-� (TNF-�),<br />
<strong>in</strong>terleuk<strong>in</strong>-1 (IL-1) and C-Reactive Prote<strong>in</strong> (CRP), and their relationships<br />
with genetic polymorphisms <strong>in</strong> APOE, SCAP, PPR-�, ADRA2B, ACSL5 and
Titolo progetto<br />
Ente f<strong>in</strong>anziatore<br />
Durata progetto<br />
Abstract del progetto<br />
IL-6 genes. As biomarker <strong>of</strong> longevity we will also evaluate the<br />
accumulation <strong>of</strong> mitochondrial (mt) DNA mutation through the analysis <strong>of</strong><br />
the D310 mononucleotide repeat <strong>of</strong> mtDNA.<br />
Smart Home for Elderly People (HOPE)<br />
M<strong>in</strong>istero della salute/M<strong>in</strong>istero dell’Università e della Ricerca Scientifica<br />
Two years<br />
S<strong>in</strong>ce Europe’s and worldwide population grows older, the need for care<br />
is grow<strong>in</strong>g as well as people spend more money to get it. The solution<br />
Smart Home for Elderly People (HOPE) promises to reduce the need for<br />
carers, improve the life <strong>of</strong> older people and cut the cost <strong>of</strong> assistance. The<br />
ma<strong>in</strong> objective <strong>of</strong> the “Hope” project is to produce an Integrated<br />
Computer Technology (ICT) solution that will help the elderly people,<br />
specifically those that suffer with the Alzheimer s disease (AD), achieve a<br />
richer and more <strong>in</strong>dependent lifestyle. Dementia causes long and<br />
oppressive suffer<strong>in</strong>g to patients and their relatives and imposes<br />
enormous costs on society. About 25 million people suffered from<br />
dementia <strong>in</strong> recent years. As a 4-fold <strong>in</strong>crease <strong>of</strong> this number is expected<br />
by 2050, dementia is one ma<strong>in</strong> health issue <strong>of</strong> the next decades. AD<br />
covers 50-70% <strong>of</strong> all dementia cases, no cure exists, and effective and<br />
reliable early diagnostic techniques are lack<strong>in</strong>g. Early diagnosis and<br />
progress monitor<strong>in</strong>g <strong>of</strong> AD is a central part <strong>of</strong> treatment until future drugs<br />
and prevention strategies become available. Elderly people with AD<br />
spend most <strong>of</strong> their time at home. The “HOPE” solution consists <strong>of</strong> an<br />
<strong>in</strong>tegrated, smart platform that will enable the elderly people with AD to<br />
use <strong>in</strong>novative technology for a more <strong>in</strong>dependent life, easy access to<br />
<strong>in</strong>formation, monitor their health, and serve as a source <strong>of</strong> <strong>in</strong>spiration for<br />
users as well as for people work<strong>in</strong>g with assistive devices. Moreover, it<br />
will enable them to perform by themselves activities they were not able<br />
to do before and which are important for their daily personal life. The<br />
ma<strong>in</strong> advantage <strong>of</strong> the proposed system is that it provides a basis for<br />
<strong>in</strong>tegrat<strong>in</strong>g services for the elderly population while they are at home.<br />
HOPE is a budgeted solution that will be <strong>in</strong>stalled at the elderly people’s<br />
homes, and will provide services for (a) life-long, self organized,<br />
appropriate educational environment and access to <strong>in</strong>formation, (b) care<br />
management and health support, (c) self monitor<strong>in</strong>g and decision mak<strong>in</strong>g.<br />
Optionally, the user will be able to activate s<strong>of</strong>tware which automatically<br />
establishes the necessary <strong>in</strong>teractive, triple-play connection for receiv<strong>in</strong>g<br />
tele-help and tele-assistance from specialized service providers, doctors<br />
or other medical personnel. The proposed application will be <strong>in</strong>telligent<br />
enough to <strong>of</strong>fer safety <strong>in</strong> terms <strong>of</strong> controll<strong>in</strong>g efficiently the home<br />
environment, economy <strong>in</strong> terms <strong>of</strong> controll<strong>in</strong>g and decreas<strong>in</strong>g the need<br />
for external help, and convenience <strong>in</strong> terms <strong>of</strong> adjust<strong>in</strong>g the operation <strong>of</strong><br />
connected sub-systems to achieve the best possible user experience.
Nome V<strong>in</strong>cenzo Mario Bruno GIORGINO<br />
Contatti<br />
Istituto/Dipartimento<br />
Proposta di ricerca<br />
TEL. (WK) (0039) (0)11 6706093 e-mail v<strong>in</strong>cenzo.giorg<strong>in</strong>o@unito.it<br />
Cell. 3280380926<br />
Department <strong>of</strong> Social Sciences - Faculty <strong>of</strong> Economics - University <strong>of</strong><br />
Tor<strong>in</strong>o<br />
A transdiscipl<strong>in</strong>ary oriented proposal from a social sciences perspective<br />
From the bedside to the bench and return<br />
The major challenge <strong>in</strong> the field <strong>of</strong> senile dementia is represented by the existent gap between different<br />
discipl<strong>in</strong>ary approaches, namely between bio-medical and social/human sciences. The project aims to<br />
answer to this gap with<strong>in</strong> a transdiscipl<strong>in</strong>ary perspective, ma<strong>in</strong>ly based on the effort to <strong>in</strong>tegrate<br />
experiential data com<strong>in</strong>g from social sciences methods with biomedical ones. The former are considered a<br />
possible source <strong>of</strong> knowledge that, under certa<strong>in</strong> conditions, can be meshed with the latter.<br />
The <strong>research</strong> strategy is based on the recruitment <strong>of</strong> around 50 patients with mild cognitive<br />
impairment or symptoms <strong>of</strong> early Alzheimer’s disease and their caregivers, both formal and <strong>in</strong>formal.<br />
Selection criteria <strong>of</strong> participants with<strong>in</strong> a grounded theory methodology will be based on the greater<br />
similarity, i.e. the most similar personal/social characteristics as well as <strong>of</strong> the context.<br />
The <strong>research</strong> design is a mixed method approach oriented to collect data from the experiential<br />
level pr<strong>in</strong>cipally through methods such as journals, systematic observation, <strong>in</strong>-depth <strong>in</strong>terviews and focus<br />
groups with the caregivers, both formal and <strong>in</strong>formal. The same could be said for Alzheimer’s patients as<br />
far as possible and, <strong>in</strong> this regard, first-person observation is <strong>of</strong> the utmost importance as it allows a<br />
knowledge that is unavailable with usual third person methods; the former can be assessed with adequate<br />
criteria as recent literature is show<strong>in</strong>g.<br />
One major assumption is that the loss <strong>of</strong> cognitive functions could not mean the loss <strong>of</strong> the<br />
awareness <strong>of</strong> this pa<strong>in</strong>ful condition; moreover, if the patient is usually unable to express his/her feel<strong>in</strong>gs, it<br />
does not mean that he/she does not have feel<strong>in</strong>gs at all. So far, we can develop adequate tools <strong>of</strong><br />
systematic observation to explore these more subtle processes.<br />
The project may <strong>in</strong>clude a two month period <strong>of</strong> an experimental tra<strong>in</strong><strong>in</strong>g for caregivers <strong>in</strong> which<br />
they could learn to practice some contemplative methods <strong>in</strong> their everyday life. This is a goal <strong>of</strong><br />
translational relevance that can <strong>in</strong>clude the patients, depend<strong>in</strong>g by their specific condition, and call<strong>in</strong>g for<br />
a specific k<strong>in</strong>d <strong>of</strong> exercises. Follow<strong>in</strong>g this perspective, we can set up two groups <strong>of</strong> around 25 caregivers<br />
each. To the first group is <strong>of</strong>fered a two month contemplative practice program, while the second will<br />
follow the current standard service provision.<br />
If <strong>in</strong> the literature social ties are recognized <strong>of</strong> major importance both at health promotion and<br />
prevention level than dur<strong>in</strong>g the support for the sick, they do not exist <strong>in</strong> a vacuum: they call for personal
commitment, i.e. emotional, cognitive and economic resources. Social support and self heal<strong>in</strong>g are here<br />
<strong>in</strong>tended as nurtured by a discipl<strong>in</strong>ed learned skills <strong>of</strong> contemplative techniques: see for example the<br />
literature about TM and m<strong>in</strong>dfulness approaches which provide a cultural ma<strong>in</strong>tenance to our biological<br />
self.<br />
As a further development, a contribution by an economist could develop a specific <strong>research</strong><br />
strategy for a study about the costs <strong>of</strong> this k<strong>in</strong>d <strong>of</strong> <strong>in</strong>tervention compared with standard ones.<br />
A valuable consequence <strong>of</strong> this approach could also be appreciated at cognitive level: a fresh<br />
understand<strong>in</strong>g <strong>of</strong> difficult situations could emerge <strong>in</strong> everyday life by the caregivers or <strong>in</strong> the pr<strong>of</strong>essional<br />
realm, suggest<strong>in</strong>g new opportunities <strong>of</strong> manag<strong>in</strong>g the <strong>in</strong>teractional lived situation and open<strong>in</strong>g the way to<br />
new possible treatments. The hypothesis is that contemplative methods could enhance not only the<br />
cop<strong>in</strong>g function but also the general <strong>in</strong>teractional process related to the management <strong>of</strong> this illness,<br />
<strong>in</strong>clud<strong>in</strong>g a better <strong>in</strong>teraction and understand<strong>in</strong>g with/<strong>of</strong> the patient’s experience, currently shadowed <strong>in</strong><br />
cl<strong>in</strong>ical <strong>research</strong>. One can envisages also the consequences that this k<strong>in</strong>d <strong>of</strong> approach could have at the<br />
governance level, <strong>in</strong> which caregivers and, when possible, patients can be co-producers <strong>of</strong> the heal<strong>in</strong>g<br />
process, as recent NHS policy programs show <strong>in</strong> the UK. A broader encompass<strong>in</strong>g framework based on an<br />
experiential-empirical perspective could enhance the scientific development and open to more effective<br />
<strong>in</strong>tervention.<br />
Area di <strong>in</strong>teresse identificata<br />
V<strong>in</strong>cenzo Mario Bruno Giorg<strong>in</strong>o<br />
Experimental methods oriented to personal experience<br />
Transdiscipl<strong>in</strong>ary <strong>research</strong><br />
Sociology <strong>of</strong> health, <strong>of</strong> health pr<strong>of</strong>ession and <strong>in</strong>formal care