CHARACTERIZATION OF THE EFFECTOR-CELLS IN CON A-INDUCED CYTO-TOXICITY AGAINST HEP-2 TUMOR TARGETS

  • 1 January 1983
    • journal article
    • research article
    • Vol. 40  (1) , 41-46
Abstract
Con A[Concanavalin A]-induced cytotoxic activity of human lymphocyte subpopulations obtained by cell fractionation procedures was studied in a test system using human epipharynx carcinoma cells (HEp 2) as targets. Only T lymphocytes were cytotoxic, non-T cells exerted no cytotoxic activity, but enhanced the adherence of the tumor cells. Tnon-G lymphocytes (Fe-receptor negative T cells) were more active than TG cells (Fe-receptor-positive T cells) in mediating the Con A-induced cytotoxic reaction.