Objetivo Brain information processing is commonly thought to be a neuronal performance. However recent data point to a key role of astrocytes in brain development, activity and pathology. Indeed astrocytes are now viewed as crucial elements of the brain circuitry that control synapse formation, maturation, activity and elimination. How do astrocytes exert such control is matter of intense research, as they are now known to participate in critical developmental periods as well as in psychiatric disorders involving synapse alterations. Thus unraveling how astrocytes control synaptic circuit formation and maturation is crucial, not only for our understanding of brain development, but also for identifying novel therapeutic targets.We recently found that connexin 30 (Cx30), an astroglial gap junction subunit expressed postnatally, tunes synaptic activity via an unprecedented non-channel function setting the proximity of glial processes to synaptic clefts, essential for synaptic glutamate clearance efficacy. Our work not only reveals Cx30 as a key determinant of glial synapse coverage, but also extends the classical model of neuroglial interactions in which astrocytes are generally considered as extrasynaptic elements indirectly regulating neurotransmission. Yet the molecular mechanisms involved in such control, its dynamic regulation by activity and impact in a native developmental context are unknown. We will now address these important questions, focusing on the involvement of this novel astroglial function in wiring developing synaptic circuits.Thus using a multidisciplinary approach we will investigate:1) the molecular and cellular mechanisms underlying Cx30 regulation of synaptic function2) the activity-dependent dynamics of Cx30 function at synapses3) a role for Cx30 in wiring synaptic circuits during critical developmental periodsThis ambitious project will provide essential knowledge on the molecular mechanisms underlying astroglial control of synaptic circuits. Ámbito científico medical and health sciencesclinical medicinepsychiatrymedical and health sciencesclinical medicinephysiotherapymedical and health sciencesclinical medicineobstetricspostnatal caremedical and health sciencesbasic medicinepathologynatural sciencescomputer and information sciencesdata sciencedata processing Palabras clave neuroglial interactions astrocytes synapse plasticity criticial period Programa(s) H2020-EU.1.1. - EXCELLENT SCIENCE - European Research Council (ERC) Main Programme Tema(s) ERC-CoG-2015 - ERC Consolidator Grant Convocatoria de propuestas ERC-2015-CoG Consulte otros proyectos de esta convocatoria Régimen de financiación ERC-COG - Consolidator Grant Institución de acogida COLLEGE DE FRANCE Aportación neta de la UEn € 1 587 500,00 Dirección PLACE MARCELIN BERTHELOT 11 75005 Paris Francia Ver en el mapa Región Ile-de-France Ile-de-France Paris Tipo de actividad Higher or Secondary Education Establishments Enlaces Contactar con la organización Opens in new window Sitio web Opens in new window Participación en los programas de I+D de la UE Opens in new window Red de colaboración de HORIZON Opens in new window Coste total € 2 000 000,00 Beneficiarios (2) Ordenar alfabéticamente Ordenar por aportación neta de la UE Ampliar todo Contraer todo COLLEGE DE FRANCE Francia Aportación neta de la UEn € 1 587 500,00 Dirección PLACE MARCELIN BERTHELOT 11 75005 Paris Ver en el mapa Región Ile-de-France Ile-de-France Paris Tipo de actividad Higher or Secondary Education Establishments Enlaces Contactar con la organización Opens in new window Sitio web Opens in new window Participación en los programas de I+D de la UE Opens in new window Red de colaboración de HORIZON Opens in new window Coste total € 2 000 000,00 Tercero Entidad jurídica distinta de un subcontratista que está afiliada o vinculada jurídicamente con un participante. Dicha entidad lleva a cabo su trabajo en las condiciones establecidas en el acuerdo de subvención, proporciona bienes o presta servicios para la acción, pero no firma dicho acuerdo. El tercero acata las normas aplicables a su participante en virtud del acuerdo de subvención en lo que respecta a la subvencionalidad de los costes y el control de los gastos. INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERCHE MEDICALE Francia Aportación neta de la UEn € 412 500,00 Dirección RUE DE TOLBIAC 101 75654 Paris Ver en el mapa Región Ile-de-France Ile-de-France Paris Tipo de actividad Research Organisations Enlaces Contactar con la organización Opens in new window Sitio web Opens in new window Participación en los programas de I+D de la UE Opens in new window Red de colaboración de HORIZON Opens in new window Coste total € 412 500,00
