title: Blastogenic factor from unstimulated leukocyte cultures: further evidence for heterogeneity, and mechanism of production.
mesh_terms: D002478:Cells, Cultured; D003470:Culture Media; D004247:DNA / Q000096:biosynthesis; D003609:Dactinomycin / Q000494:pharmacology; D004731:Endotoxins / Q000494:pharmacology; D004926:Escherichia coli / Q000276:immunology; D006801:Humans; D007962:Leukocytes / Q000276:immunology*; D008937:Mitomycins / Q000494:pharmacology; D012313:RNA / Q000096:biosynthesis; D013936:Thymidine / Q000378:metabolism; D014316:Tritium; D014461:Ultracentrifugation
chemical_list: D003470:Culture Media; D004731:Endotoxins; D008937:Mitomycins; D014316:Tritium; D003609:Dactinomycin; D012313:RNA; D004247:DNA; D013936:Thymidine