Activation of natural killer (NK) cells in vivo with H-2 and non-H-2 alloantigens |
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Authors: | Edward A Clark Richard D Holly |
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Institution: | (1) Department of Genetics, Regional Primate Research Center, University of Washington SK-50, 98195 Seattle, Washington |
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Abstract: | Intraperitoneal inoculation of allogeneic lymphoid cells rapidly activates cytotoxic cells in the peritoneum which are nonadherent and express the NK-1, asialo-GM1, and Thy-1 antigens. Allogeneic spleen cells were very efficient at activating these natural killer (NK) cells, while allogeneic thymocytes were much less effective. Heat-killed allogeneic cells or sonicates also could augment NK activity. — Incompatibility atH-2K, H-2I-A, orH- 2D readily evoked NK cell activity, whileH-2S- andH-2I-E/C-associated disparities did not. Non-H- 2 differences also stimulated NK activity and augmentation was particularly evident inMls-disparate combinations. Thus, the same alloantigens which efficiently activate T cells also activate NK cells. |
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