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dc.contributor.authorHerranz, Gonzalo-
dc.contributor.authorIzquierdo, Manuel-
dc.date.accessioned2018-02-09T10:06:05Z-
dc.date.available2018-02-09T10:06:05Z-
dc.date.issued2017-
dc.identifier.citationEMBO Conference (2017)-
dc.identifier.urihttp://hdl.handle.net/10261/160368-
dc.descriptionResumen del póster presentado a la EMBO Conference: Cell polarity and membrane dynamics, celebrada en Sant Feliu de Guixols (España) del 4 al 9 de junio de 2017.-- et al.-
dc.description.abstractMultivesicular bodies (MVB) enclose intraluminal vesicles (ILV) formed by inward budding from the membrane of endosomes. In T lymphocytes, ILV are secreted as Fas ligand-bearing, pro-apoptotic exosomes following T cell receptor (TCR)-induced fusion of the MVB with the plasma membrane at the immune synapse (IS). Diacylglycerol (DAG) and DAG kinase α (DGKα) regulate the polarized traffic of MVB towards the IS in T lymphocytes and exosome secretion. We show that Protein Kinase Cδ (PKCδ) regulates TCR-controlled, MVB polarization towards the IS and exosome secretion. Concomitantly, we demonstrate defects in activation-induced cell death in PKCδ-interfered T lymphocytes. Spatiotemporal reorganization of actin at the IS is controlled by PKCδ. TCR-controlled phosphorylation of T538 residue of adaptor paxillin at the microtubule organizing centre (MTOC) is decreased in PKCδ-interfered cells. PKCδ-dependent actin reorganization at the IS is a key regulator of MVB polarized secretory traffic.-
dc.rightsclosedAccess-
dc.titleProtein kinase C δ regulates the clearance of actin at the immunological synapse required for polarized exosome secretion in by T cells-
dc.typepóster de congreso-
dc.date.updated2018-02-09T10:06:05Z-
dc.description.versionPeer Reviewed-
dc.language.rfc3066eng-
dc.relation.csic-
Appears in Collections:(IIBM) Comunicaciones congresos
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