The Anticancer Action of Lymphotoxin
Study of the mechanisms of natural immunity at the target cell level possessing the potential to prevent and intervene to modulate the development of carcinogenesis has identified lymphotoxin to be a major component (Evans et al., 1983). Lymphotoxin anticancer activities include: (1) cancer prevention measured by irreversible inhibition of chemical carcinogen or radiation transformation of syngeneic Syrian hamster cells in vitro (Evans and DiPaolo, 1981) or in a combined in vivo-in vitro transplacental carcinogenesis assay (Ransom et al., 1982b, 1983a); (2) cytostasis assessed by reversible growth inhibition of allogeneic or syngeneic tumor cells (Evans and Heinbaugh, 1981; Evans et al., 1983); (3) cytolysis indicated by radionuclide release from allogeneic or syngeneic tumor cells (Evans and Heinbaugh, 1981); and (4) cytoreductive stimulating activity demonstrated by enhanced sensitivity of lymphotoxin-treated tumor cells to natural killer cell cytolysis (Ransom and Evans, 1982, 1983).
KeywordsNatural Killer Cell Anticancer Action L929 Cell Syrian Hamster Cytolytic Activity
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