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Mitogen-induced modulation of CD3, CD4, and CD8


It is not clear whether CD3 contacts CD4 or CD8 directly, nor have the regulation and interregulation of expression of these three receptor molecules been determined. We explored these issues by first stimulating human peripheral blood lymphocytes in vitro with three well-characterized T-cell receptor-directed mitogens (phytohemagglutinin [PHA], concanavalin A [ConA], and anti-CD3 monoclonal antibody [anti-CD3]) and then using multiparameter flow cytometric techniques to investigate modulation of surface (sur) and cytoplasmic (c) CD3, CD4, and CD8.… Read more