title: Interferon production in mixed cultures of murine leukocytes and syngeneic L1210 leukemia cells.
abstract: Spleen cells from DBA/2 mice did not proliferate, but released interferon (IFN) when cultured in the presence of mitomycin C-treated syngeneic L1210 leukemia cells apparently free from mycoplasma and common non-oncogenic viral infections. IFN titers reached a plateau after 18 h of culture. The biological activity of this IFN was stable at pH 2 and could be inactivated by antibody raised against alpha and beta-IFN. Removal of phagocytes from the spleen cell suspensions caused a decrease in IFN production. By contrast, suspensions depleted in Thy 1.2-positive cells had an enhanced capacity to produce IFN in response to the L1210 cells.
mesh_terms: D000818:Animals; D002455:Cell Division; D002478:Cells, Cultured; D005260:Female; D005347:Fibroblasts / Q000378:metabolism; D007372:Interferons / Q000096:biosynthesis*; D007700:Kinetics; D007939:Leukemia L1210 / Q000378:metabolism*; D007962:Leukocytes / Q000378:metabolism*; D051379:Mice; D008809:Mice, Inbred C3H; D008811:Mice, Inbred DBA; D013154:Spleen / Q000166:cytology / Q000378:metabolism
chemical_list: D007372:Interferons