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Multiple Routes for Glutamate Receptor Trafficking: Surface Diffusion and Membrane Traffic Cooperate to Bring Receptors to Synapses

hal.structure.identifierCentre de physique moléculaire optique et hertzienne [CPMOH]
dc.contributor.authorCOGNET, Laurent
hal.structure.identifierPhysiologie cellulaire de la synapse [PCS]
dc.contributor.authorGROC, Laurent
hal.structure.identifierCentre de physique moléculaire optique et hertzienne [CPMOH]
dc.contributor.authorLOUNIS, Brahim
hal.structure.identifierPhysiologie cellulaire de la synapse [PCS]
dc.contributor.authorCHOQUET, Daniel
dc.date.issued2006-03-21
dc.description.abstractEnTrafficking of glutamate receptors into and out of synapses is critically involved in the plasticity of excitatory synaptic transmission. Endocytosis and exocytosis of receptors have initially been thought to account alone for this trafficking. However, membrane proteins also traffic through surface lateral diffusion in the plasma membrane. We describe developments in electrophysiological and optical approaches that have allowed for the real time measurement of glutamate receptor surface trafficking in live neurons. These include (i) specific imaging of surface receptors using a pH sensitive fluorescent protein, (ii) design of a photoactivable drug to inactivate locally surface receptors and monitor electrophysiologically their recovery, and (iii)application of single molecule fluorescence microscopy to directly track the movement of individual surface receptors with nanometer resolution inside and outside synapses. Altogether, these approaches have demonstrated that glutamate receptors diffuse at high rates in the neuronal membrane and suggest a key role for surface diffusion in the regulation of receptor numbers at synapses.
dc.language.isoen
dc.subjectSingle molecule detection
dc.subjectquantum dots
dc.subjectneurons
dc.title.enMultiple Routes for Glutamate Receptor Trafficking: Surface Diffusion and Membrane Traffic Cooperate to Bring Receptors to Synapses
dc.typeArticle de revue
dc.subject.halPhysique [physics]/Physique [physics]/Optique [physics.optics]
dc.subject.halPhysique [physics]/Physique [physics]/Biophysique [physics.bio-ph]
dc.identifier.arxiv0704.3854
bordeaux.journalScience's STKE [electronic resource] : signal transduction knowledge environment
bordeaux.page13
bordeaux.volume327
bordeaux.peerReviewedoui
hal.identifierhal-00143983
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00143983v1
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