title: Enhancing effect of phorbol esters on induction of differentiation of mouse myeloid leukemia cells by human urinary protein and lipopolysaccharide.
abstract: 12-O-Tetradecanoylphorbol-13-acetate, a potent promoter of carcinogenesis in mouse skin, enhanced differentiation of cultured mouse myeloid leukemia cells (M1) induced by human urinary protein or by lipopolysaccharide from Salmonella typhosa. 12-O-Tetradecanoylphorbol-13-acetate enhanced differentiation of all the markers tested, such as phagocytosis, Fc rosette formation, lysozyme activity, and morphological change. Other potent tumor-promoting macrocyclic plant diterpenes also enhanced the induction of differentiation, but no-tumor-promoting diterpenes did not. These findings were in marked contrast with generally accepted findings on the inhibitory effect of 12-O-tetradecanoylphorbol-13-acetate on terminal differentiation observed in other cell culture systems but consistent with the observations with some kinds of leukemia cells.
mesh_terms: D000818:Animals; D002454:Cell Differentiation / Q000187:drug effects*; D002478:Cells, Cultured; D004224:Diterpenes / Q000494:pharmacology; D004357:Drug Synergism; D006801:Humans; D007942:Leukemia, Experimental / Q000473:pathology; D007951:Leukemia, Myeloid / Q000473:pathology*; D008070:Lipopolysaccharides / Q000494:pharmacology*; D051379:Mice; D010587:Phagocytosis / Q000187:drug effects; D010703:Phorbol Esters / Q000494:pharmacology*; D010704:Phorbols / Q000494:pharmacology*; D011506:Proteins / Q000494:pharmacology*; D013755:Tetradecanoylphorbol Acetate / Q000494:pharmacology
chemical_list: D004224:Diterpenes; D008070:Lipopolysaccharides; D010703:Phorbol Esters; D010704:Phorbols; D011506:Proteins; D013755:Tetradecanoylphorbol Acetate