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It is the aim of AXLR8 to lay the groundwork for a transition in toxicology toward a more pathway-based’ in vitro and computational approach through enhanced networking and collaboration among scientists, regulators, and other key stakeholders at European and international levels. To achieve this goal, AXLR8 organises annual workshops to bring together the scientific community to discuss the progress of ongoing projects, to identify knowledge gaps, and to propose a scientific roadmap for future EU research. At the second AXLR8 workshop (AXLR8-2) in 2011, progress on alternatives was reported by FP6/7-funded Health and Environment projects, as well as EU Member State <strong>3R</strong>s centres and international initiatives. A key objective of the second AXLR8 workshop was to develop recommendations for priority research under the forthcoming ‘Horizon 2020’ EU funding programme. Conclusions arising from the workshop and from discussions of the AXLR8 Scientific Panel are as follows: i There is a need for a large-scale, interdisciplinary effort based on a publicprivate partnership model to further develop the pathway paradigm i A key element is functional integration of separate research ‘building blocks’ Clusters of 4-5 individual research projects should be organised around priority health concerns, together with an infrastructure cluster and an overarching coordination action i There should be a strong focus in all clusters on the following cross-cutting building blocks: • Identification and understanding of toxicological modes-of-action associated with adverse health effects, including elucidation of critical pathways • Development of models that capture specific MOA events at different scales, underpinned by a systems biology approach to integrate models & make quantitative predictions • Expansion & refinement of PBPK modelling & computational chemistry methods to predict in vivo bioavailability, biotransformation & bioactivity • Translational research & proof-of-concept activities to realise fit-for-purpose methods & tools for hazard/potency prediction & demonstration of these in a safety assessment context. Given the substantial and increasing global investment in research aimed at developing new safety assessment methods and implementing the ‘<strong>3R</strong>s’ in toxicology, there is a recognised need for better coordination in this research area. In response to this demand AXLR8 has proven that it can provide the tools for effective real-time dialogue, information exchange, problem solving, and international cooperation. Freie Universität Berlin Institute of Pharmacy Königin-Luise Str. 2+4 14195 Berlin, Germany AXLR8.eu
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ALTERNATIVE TESTING STRATEGIES PROG
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ALTERNATIVE TESTING STRATEGIES PROG
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TABLE OF CONTENTS 1. 2. EXECUTIVE S
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Update on EPA’s ToxCast Programme
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challenges, needs, and priorities f
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1INTRODUCTION It is the aim of the
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and progress of these multidiscipli
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Table 2. Members of the AXLR8 Scien
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• OECD Joint Meeting Special Sess
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ACuteTox Optimisation & Pre-Validat
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to robotic screening platforms; and
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ased on functional parameters inclu
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Table 1. Outliers identified by com
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showed that for some compounds the
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Computer-based prediction of metabo
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three reference compounds revealed
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a calibration curve constructed. Th
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cell lines) or 48 hours (A704 cells
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multivariate CART results did not c
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probability) ~50% of the substances
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Publications 2010-11 Hoffmann S, Ki
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Per Artursson Uppsala University Up
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their genotoxic and carcinogenic po
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Table 1. Overview of carcinoGENOMIC
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D12.23 3 monthly Project M42 √ Bo
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annual carcinoGENOMICS meeting in N
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M3.5 Decision of most M40 Postponed
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M3.4 Identification of most suitabl
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WP1 with input from other partners
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Partners Project Co-ordinator Jos K
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combine knowledge of critical proce
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defined and published in the form o
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WP6 is devoted to the setup of a so
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Partners Co-ordinator Bart van der
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obustness, comparing results obtain
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6. Candéias S, Pons B, Viau M, et
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ESNATS Embryonic Stem Cell-Based No
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Table 1. List of deliverables due i
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D3.3.1 Toxicity gene expression sig
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Table 2. List of milestones due in
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Table 3. Test systems corresponding
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Publications 2010-11 1. Peters SJ,
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Marcel Leist Universität Konstanz
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The most significant achievements o
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Figure 3. The Sensor Dish Reader (S
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LIINTOP Optimisation of Liver & Int
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cells express most of the functions
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Figure 3. Scheme of lentivirus gene
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Figure 5. Co-culture set-up. Functi
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Figure 9. Phalloidin-TRITC staining
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Table 1. Values are expressed as pe
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formed with mannitol, atenolol, pro
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Figure 14. Comparison of Digoxin an
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By using the new technology of HCA
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Figure 17. (Left panel) Phalloidin-
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limited amount of data could be pro
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André Guillouzo Institut National
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Objectives The overall aim of this
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Table 2: Milestones achieved in 201
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detected iron (µg/ml) 80 70 6
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in the following order: uncoated ma
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analysis of leukocytes, expression
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2011 the automated protocols will b
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OpenTox Promotion, Development, Acc
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Results The OpenTox Framework The O
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Figure 1. ToxPredict: OpenTox Appli
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scientifically sound manner, so as
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Figure 4. Creating a QPRF report wi
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Figure 7. MaxTox model-building app
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Figure 8. Bioclipse interaction wit
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and model predictions, which they m
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Publications 2010-11 1. Hardy B, Do
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In vitro toxicology using isolated
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(2C-Glo-CYP2C, 3A-Glo-CYP3A) while
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neuronal models 2D (primary culture
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10 and 14 days. The liver-specific
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Frédéric Bois Institut National d
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Figure 1. The Sens-it-iv sphere. 2.
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Figure 2. The updated modular struc
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Technology Module The aim of techno
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Table 1: The final compound list. R
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Table 2. The Sens-it-iv Toolbox. N
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Figure 4. A gene profile for identi
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Figure 7. In vitro T cell priming a
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sessions at congress and meetings (
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7. Gibbs S, van Montfrans C, Kroeze
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vitro assessment of allergens. Eds:
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S.F. Martin Universitätsklinikum F
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idging the gap to human volunteer s
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combinations of transcriptomics, me
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normal animals who usually exhibit
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Workshop proposals Concepts of data
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VITROCELLOMICS Reducing Animal Expe
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esulting of the project was the abi
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Figure 3. Four-compartment artifici
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embryonic stem cells differentiatin
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196 3AXLR8-2 WORKSHOP REPORT
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Workshop participants were divided
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08.45 - 09.15 ACuteTox Annette Kopp
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3.3 Workshop Presentations 202
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Table 1. A sampling of current toxi
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Table 2. EPA activities: a timeline
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Why is a Consortium Needed While th
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the development of new more relevan
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in particular for fundamental resea
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compared to controls. Most interest
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epidermis to known allergens and UV
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The Virtual Liver Spatial-Temporal
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A B C D E Figure 2. Tissue reconstr
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Figure 4. Mechanisms of how hepatoc
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in rat liver in vivo (Figure 5A). H
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The IMI eTOX Project Efforts to Dev
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deliverables, which can only be ach
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A series of publications related to
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Update on EPA’s ToxCast Programme
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Phase I of ToxCast involved the eva
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Endpoint Brief Description of Bioac
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includes approximately 150 chemical
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information. For each slice, distan
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Judson RS, Houck KA, Kavlock RJ, et
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Embryonic Stem Cell Approaches Towa
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perhaps be tested efficiently in al
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compared gene and protein expressio
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cost and time, allowing more chemic
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Toxicol Appl Pharmacol. 2011; 251,
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functions, establish relationships
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cellular behaviours are captured fr
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assay. PLoS One. 2011; 6, e18540. 7
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learning algorithm called Support V
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Compound Potency Vehicle Concentrat
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mediated inhibition of RXR function
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References Basketter DA, Evans P, F
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When considering consumer exposure,
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in the induction of skin sensitisat
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has reacted, when the peptide deple
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of presentations and discussions, t
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Contact Dermatitis. 2005; 53. 16. S
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the development of in vitro assays.
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Although the mechanisms underlying
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skin sensitisation, it will aid in
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Figure 3. Scatter plot of robust li
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7. De Smedt A, Van Den Heuvel R, Va
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The OECD Adverse Outcome Pathway Ap
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the AOP can be used in qualitative
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Table 1. Summary of the experimenta
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the significance of type 1 versus t
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plus the key events that occur acro
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Dimitrov, S.D., Low, L.K., Patlewic
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[Supporting information and databas
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Figure 1. Strategic R&D of chemical
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The Bhas 42 system can sensitively
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Table 1. Established reporter cell
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elated genes (Hand1, ADAM19, Cmyal,
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Publications Carcinogenicity Tanaka
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Page 340 and 341: - Deep-sequencing of birth defect p
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Page 346 and 347: for further progress. Better tools
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Page 358 and 359: Directory of Projects & Co-ordinato
Page 360 and 361: Glossary of Terms 2D/3D 3Rs CARDAM/
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