Picrotoxin is a CYP1A1 inducer in rainbow trout hepatocytes.

Picrotoxin is a CYP2B inducer in mammals (1). However, in primary cultures of rainbow trout hepatocytes we showed CYP1A1 gene expression to be strongly induced as characterized by 7-ethoxyresorufin-O-deethylase activity, immunoblots of CYP1A1 protein, and Northern blots of CYP1A1 mRNA. Induction of CYP1A1 in these cells appeared to be via the aromatic… CONTINUE READING