Vitamin A acid (retinoic acid), a potent inhibitor of 12-O-tetradecanoyl-phorbol-13-acetate-induced ornithine decarboxylase activity in mouse epidermis.

Adenosylmethionine Decarboxylase/metabolism Animals Carboxy-Lyases/antagonists & inhibitors Drug Administration Schedule Enzyme Induction/drug effects Female In Vitro Techniques Mice Neoplasms, Experimental/chemically induced Ornithine Decarboxylase/biosynthesis Ornithine Decarboxylase Inhibitors Papilloma/chemically induced Phorbols/pharmacology Skin/drug effects,enzymology Skin Neoplasms/chemically induced Tetradecanoylphorbol Acetate/administration & dosage,pharmacology Tretinoin/administration & dosage,pharmacology Vitamin A/analogs & derivatives,pharmacology

Ornithine Decarboxylase Inhibitors Phorbols Vitamin A Tretinoin Carboxy-Lyases Ornithine Decarboxylase Adenosylmethionine Decarboxylase Tetradecanoylphorbol Acetate