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We show that phorbol esters and Ca2+ ionophores can trigger the lysis of nonantigen-bearing target cells by cytotoxic T lymphocytes. This effect obviates the requirement for antigen-receptor-mediated(More)
Using monoclonal antibodies to T and B lymphocytes, to natural killer cells, and to HLA-DR antigen, we characterized the lymphocyte population within the epithelial and lamina propria regions in(More)
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