Tumor necrosis factor-alpha enhances cytolytic activity of human natural killer cells.

Abstract

The effect of recombinant tumor necrosis factor-alpha (rTNF alpha) on human natural killer (NK) function was examined. Lysis of both the NK-sensitive K562 erythroleukemia line and the relatively insensitive renal carcinoma line Cur by nonadherent peripheral blood lymphocytes was significantly enhanced as a result of an 18-hr preincubation with either rTNF… (More)

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