Co-stimulation in T cell responses

作者: Cynthia A Chambers , James P Allison

DOI: 10.1016/S0952-7915(97)80087-8

关键词: Platelet-derived growth factor receptorBiologyCell biologyCD28AntigenT cellT-cell receptorSignal transductionCo-stimulationCytotoxic T cell

摘要: Antigen-specific T cell responses have primarily been considered in terms of activation signals delivered through the TCR and co-stimulatory molecule CD28. In past few years, studies demonstrated critical importance inhibitory for regulating lymphocyte activation. CD28 its homologue cytotoxic antigen-4 (CTLA-4) share same counter-receptors on antigen-presenting cells, but recent experiments shown that CTLA-4 opposite effects The mechanisms responsible integrating these at cellular molecular levels are just beginning to be elucidated.

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