Differential effects of microsomal enzyme–inducing chemicals on the hepatic expression of rat organic anion transporters, OATP1 and OATP2
Lesley C. Rausch‐Derra, Dylan P. Hartley, Peter J. Meier, Curtis D. Klaassen – 30 December 2003 – The organic anion transporting polypeptides, Oatp1 (Slc21a1) and Oatp2 (Slc21a5), mediate hepatic uptake of cardiac glycosides. Previously, we demonstrated that chemicals that increase cytochrome P450s differentially affect hepatic uptake of cardiac glycosides. We postulated that increased uptake of cardiac glycosides observed after pretreatment of animals with phenobarbital (PB) and pregnenolone‐16α‐carbonitrile (PCN) occurs via increased hepatic expression of Oatp1 and/or Oatp2.