Cytotoxic effect of gamma tumor necrosis factor(γTNF) and interleukin 2 (IL-2) onhuman hepatoma cells (H7402) was investigated by colorimetrie analysis of MTT with single and combinative using. It was shown that γTNF inhibited H7402 growth directly with its maximum of inhibitionrate at 35. 2%. Although IL-2 did not inhibite H7402 growth directly,it increased inhibition of γTNFfor H7402 with a maximum of inhibition rate at 51. 6%. The results suggest that cytotoxic effect ofγTNF on human hepatoma cells was i...