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groupe de recherche sur le système nerveux central - GRSNC

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LACAILLE, Jean-Clau<strong>de</strong>Tél. (514) 343-5794 PhysiologieUniversité <strong>de</strong> MontréalC.P. 6128, Succ. Centre-vil<strong>le</strong>, MontréalFax (514) 343-2111 Canada H3C 3J7URL site WWW:E-Mail: jean-clau<strong>de</strong>.lacail<strong>le</strong>@umontreal.ca URL personnel CV:LACAILLE, Jean-Clau<strong>de</strong>Statut universitaire / University statusProfesseur titulairePhysiologieFaculté <strong>de</strong> mé<strong>de</strong>cineUniversité <strong>de</strong> MontréalAppartenance à d'autres <strong>groupe</strong>s / Affiliation with other groupsMembre du Groupe <strong>de</strong> <strong>recherche</strong> sue <strong>le</strong> système <strong>nerveux</strong> <strong>central</strong> (<strong>GRSNC</strong>) - FRSQFormation / TrainingB.Sc., Université Concordia, Psychologie, 1980Ph.D., Memorial University, Terre-Neuve, Psychologie physiologique, 1984Postdoctora<strong>le</strong>, Institut <strong>de</strong> Neurophysiologie, Université d'Oslo, Neurophysiologie, 1984-1985Postdoctora<strong>le</strong>, University of Washington, Neurophysiologie, 1985-1987Orientations <strong>de</strong> la <strong>recherche</strong>•Organisation et fonction <strong>de</strong>s réseaux neuronaux <strong>de</strong> l'hippocampe.•Mécanismes cellulaires et moléculaires <strong>de</strong> la transmission et plasticité synaptique.•Plasticité <strong>de</strong> la transmission synaptique dans l’apprentissage et mémoire.•Dysfonction synaptique dans <strong>le</strong> retard mental.Principaux projets en cours:•Canaux K+ responsab<strong>le</strong>s <strong>de</strong> l’activité rythmique <strong>de</strong>s interneurones GABA <strong>de</strong> l'hippocampe.•Plasticité <strong>de</strong>s synapses excitatrices <strong>de</strong>s interneurones <strong>de</strong> l’hippocampe.•Interactions neurones-glies dans <strong>le</strong>s réseaux <strong>de</strong> l'hippocampe.•Contrô<strong>le</strong> <strong>de</strong> la synthèse <strong>de</strong> protéines dans la plasticité synaptique et la mémoire.•Mutations génétiques causant une dysfonction synaptique dans <strong>le</strong> retard mental.Research orientations•Organization and function of neuronal networks in hippocampus.•Cellular and mo<strong>le</strong>cular mechanisms of synaptic transmission and plasticity.•Plasticity of synaptic transmission in <strong>le</strong>arning and memory.•Synaptic dysfunction in mental retardation.Current research projects:•K+ channels responsib<strong>le</strong> for rhythmic activity of GABA interneurons in hippocampus.•Plasticity of excitatory synapses of hippocampal interneurons.•Neuron-glia interactions in hippocampal networks.•Translational control of hippocampal synaptic plasticity and memory.•Genetic mutations un<strong>de</strong>rlying synaptic dysfunction in mental retardation.Publications choisies/Se<strong>le</strong>cted publicationsPerez, Y., Morin, F. and Lacail<strong>le</strong> J.-C. A hebbian form of long-term potentiation <strong>de</strong>pen<strong>de</strong>nt on mGIuR1a in hippocampal inhibitory interneurons. Proc. Nat. Acad. Sci., 98 :9401-9406, 2001.Maccaferri, G. and Lacail<strong>le</strong>, J.-C. Hippocampal interneuron classification – making things as simp<strong>le</strong> as possib<strong>le</strong>, not simp<strong>le</strong>r. TINS, 26,564-571, 2003.Serrano, A., Haddjeri, N., Lacail<strong>le</strong>, J.-C. & Robitail<strong>le</strong>, R. GABAergic network activation of glial cells un<strong>de</strong>rlies hippocampal heterosynaptic <strong>de</strong>pression. Journal of Neuroscience26, 5370-5382, 2006.Pelkey, K.A., Topolnik, L., Lacail<strong>le</strong>, J.-C. & McBain, C.J. Compartmentalized Ca2+ channel regulation at functionally divergent re<strong>le</strong>ase sites of sing<strong>le</strong> mossy fibers un<strong>de</strong>rliestarget-cell <strong>de</strong>pen<strong>de</strong>nt plasticity. Neuron 52, 497-510, 2006.Costa-Mattioli, M., Gobert, D., Stern, E., Gamache, K., Colina, R., Cuello, C., Sossin, W., Kaufman, R., Pel<strong>le</strong>tier, J., Rosenblum, K., Krnjevic, K., Lacail<strong>le</strong>, J.-C., Na<strong>de</strong>r, K. &Sonenberg, N. eIF2 phosphorylation bidirectionally regulates the switch from short to long-term synaptic plasticity and memory. Cell 129, 195-206, 2007.Bour<strong>de</strong>au, M.L., Morin, F., Laurent, C.E., Azzi, M. & Lacail<strong>le</strong>, J.-C. Kv4.3-mediated A-type K+ currents un<strong>de</strong>rlie rhythmic activity in hippocampal interneurons. Journal ofNeuroscience 27, 1942-1953, 2007.Lebeau, G., Maher-Laporte, M., Topolnik, L., Laurent, C.E., Sossin, W.S., DesGroseil<strong>le</strong>rs, L., & Lacail<strong>le</strong>, J.-C. Staufen1 regulation of protein synthesis-<strong>de</strong>pen<strong>de</strong>nt long-termpotentiation and synaptic function in hippocampal pyramidal cells. Mo<strong>le</strong>cular and Cellular Biology 28, 2896-2907, 2008.Topolnik, L., Chamberland, S., Pel<strong>le</strong>tier, J.G., Ran, I. & Lacail<strong>le</strong>, J.-C. Activity-<strong>de</strong>pen<strong>de</strong>nt compartmentalized regulation of <strong>de</strong>ndritic Ca 2+ signaling in hippocampal interneurons.Journal of Neuroscience 29, 4658-4663, 2009.Ran, I., Laplante, I., Bourgeois, C., Pépin, J., Lacail<strong>le</strong>, P., Pel<strong>le</strong>tier, J., Costa-Mattioli, M., Sonenberg, N. & Lacail<strong>le</strong>, J.-C. Persistent transcription- and translation-<strong>de</strong>pen<strong>de</strong>nt longtermpotentiation induced by mGluR1 in hippocampal interneurons. Journal of Neuroscience 29, 5605-5615, 2009.Hamdan, F.F., Gauthier, J., Spiegelman, D., Noreau, A., Yang, Y., Pel<strong>le</strong>rin, S., Dobrzeniecka, S., Côté, M., Perreault-Linck, E, Carmant, L., D’Anjou, G., Fombonne, E.,Addington, A.M., Rapoport, J.L., Delisi, L.E., Krebs, M.-O., Mouaffak, F., Joober, R., Mottron, L., Drapeau, P., Marineau, C., Lafrenière, R.G., Lacail<strong>le</strong>, J.-C., Rou<strong>le</strong>au, G.A., andMichaud, J.L. Mutations in SYNGAP1 in autosomal non-syndromic mental retardation. New England Journal of Medicine 360, 599-605, 2009.Page 48

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