title: Retinoic acid promotion of papilloma formation in mouse skin.
abstract: Retinoic acid is a weak promotor of skin tumorigenesis in Charles River CD-1 mice. Multiple papillomas were seen in 17% of the mice treated 3 times weekly with 5.1 micrograms retinoic acid for 20 weeks after initiation by a single treatment with 50 micrograms 7,12-dimethylbenz[alpha]anthracene (DMBA). These results suggest the necessity of a more thorough evaluation of retinoids as tumor promoters before their serious consideration as anti-cancer agents in man.
mesh_terms: D015127:9,10-Dimethyl-1,2-benzanthracene / Q000633:toxicity*; D000818:Animals; D001551:Benz(a)Anthracenes / Q000633:toxicity*; D003043:Cocarcinogenesis; D005260:Female; D051379:Mice; D008815:Mice, Inbred Strains; D009374:Neoplasms, Experimental / Q000139:chemically induced; D010212:Papilloma / Q000139:chemically induced*; D012878:Skin Neoplasms / Q000139:chemically induced*; D014212:Tretinoin / Q000494:pharmacology*
chemical_list: D001551:Benz(a)Anthracenes; D014212:Tretinoin; D015127:9,10-Dimethyl-1,2-benzanthracene