Inhibition of aflatoxin B1 carcinogenesis in rainbow trout by flavone and indole compounds

Abstract
A calmodulin antagonist, N-(6-aminohexyl)-5-chloro-lnaphthalenesulfonamide (W-7) markedly inhibited the promoting activity of teleocidin on formation of skin tumors in mice initiated by 7,12-dimethylbenz[a]anthracene. This result strongly indicates that the critical action of the Ca2+-calmodulin system is responsible for tumor promotion in mouse skin.