title: Isolation of tumor disturbing factor on the proliferation of tumor cells in human serum.
abstract: The classified sediment with ethanol from sera of nude mice and humans showed a disturbing effect on L1210 cells in vitro and a lifesaving effect on L1210 cell-bearing mice in vivo. This factor was purified more than 2300-fold to a specific activity of approximately 1 X 10(5) U/mg by ethanol classified precipitation, Sephadex G-200 gel filtration, DEAE cellulose ion exchange chromatography with Nacl and pH gradient aqueous solution, and preparative polyacrylamide gel electrophoresis.
mesh_terms: D000818:Animals; D001798:Blood Proteins / Q000302:isolation & purification* / Q000494:pharmacology; D002455:Cell Division / Q000187:drug effects; D002478:Cells, Cultured; D011232:Chemical Precipitation; D002845:Chromatography; D004591:Electrophoresis, Polyacrylamide Gel; D006801:Humans; D007939:Leukemia L1210 / Q000473:pathology*; D008297:Male; D051379:Mice; D008807:Mice, Inbred BALB C; D008819:Mice, Nude; D008970:Molecular Weight; D009368:Neoplasm Transplantation
chemical_list: D001798:Blood Proteins