Inhibition of human NK cell and LAK cell cytotoxicity and differentiation by PGE2.


Activation of natural killer (NK) activity K562 target cells from nonadherent (NA) lymphocytes by interleukin 2 (IL-2) was inhibited marginally PGE2 (30-3000 nM). PGE2 did not effectively suppress the NK activity of IL-2-activated cells. The NK activation and acquisition of resistance to PGE2-mediated suppression of NK activity were dependent on protein… (More)


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