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dc.contributor.authorNieto, M. Ángela-
dc.contributor.authorGonzález, A.-
dc.contributor.authorLópez-Rivas, Abelardo-
dc.contributor.authorDíaz-Espada, F.-
dc.contributor.authorGambón, F.-
dc.identifier.citationJournal of Immunology 145(5): 1364-1368 (1990)es_ES
dc.description5 páginas.es_ES
dc.description.abstractIn recent years, several studies have confirmed the clonal elimination of thymocytes with receptors that recognize Ag and MHC molecules present on the membrane of thymic stromal cells, a process that may be relevant to the establishment of self-tolerance. In our work, we show that anti-CD3 treatment of single positive CD4+ or CD8+ human medullary thymocytes (obtained by anti-CD1a plus C) induces their apoptotic death. Some events commonly associated with the early steps of normal activation (IL-2R expression, increase in cytoplasmic Ca2+) are also induced after anti-CD3 treatment. Nevertheless, IL-2 is not secreted by these activated cells. The addition of exogenous IL-2 inhibits the apoptosis induced by anti-CD3. We suggest that the lack of secretion of IL-2 by medullary thymocytes may be a physiologic mechanism implicated in the process of negative selection that leads to tolerance.es_ES
dc.publisherAmerican Association of Immunologistses_ES
dc.titleIL-2 protects against anti-CD3-induced cell death in human medullary thymocyteses_ES
dc.description.peerreviewedPeer reviewedes_ES
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