title: Immunoregulation and natural killer cells.
mesh_terms: D000818:Animals; D016026:Bone Marrow Transplantation; D002478:Cells, Cultured; D003602:Cytotoxicity, Immunologic; D006801:Humans; D007372:Interferons / Q000502:physiology; D007694:Killer Cells, Natural / Q000187:drug effects / Q000276:immunology*; D008213:Lymphocyte Activation; D051379:Mice; D011453:Prostaglandins / Q000494:pharmacology; D051381:Rats; D012513:Sarcoma, Experimental / Q000276:immunology; D013154:Spleen / Q000276:immunology; D050378:T-Lymphocytes, Regulatory / Q000276:immunology; D013755:Tetradecanoylphorbol Acetate / Q000494:pharmacology; D014212:Tretinoin / Q000494:pharmacology
chemical_list: D011453:Prostaglandins; D014212:Tretinoin; D007372:Interferons; D013755:Tetradecanoylphorbol Acetate