Biliary efflux transporters involved in the clearance of rosuvastatin in sandwich culture of primary rat hepatocytes.

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Jemnitz K, Veres Z, Tugyi R, Vereczkey L

Biliary efflux transporters involved in the clearance of rosuvastatin in sandwich culture of primary rat hepatocytes.

Toxicol In Vitro. 2010 Mar;24(2):605-10. doi: 10.1016/j.tiv.2009.10.009. Epub 2009 Oct 21.

PubMed ID

19853032 [ View in PubMed

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Abstract

Rosuvastatin (a 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitor) has been shown to be excreted mostly unchanged into the bile; interactions on the level of hepatic apical efflux transporters may represent a risk of liver toxicity. So far, controversial and insufficient data are available concerning transporters involved in the elimination process. This study was designed to elucidate, which transporters take part in the biliary clearance of rosuvastatin using sandwich-cultured primary rat hepatocytes. The canalicular efflux of rosuvastatin was measured in the presence of inhibitors: Ko 134, mitoxanthrone, novobiocin for breast cancer resistance protein (Bcrp); verapamil for multidrug resistance protein (Mdr1); benzbromarone, sulfasalazine, probenecid for multidrug resistance associated protein (Mrp 2); and cyclosporine A, glibenclamide, troglitazone for bile salt export pump (Bsep). Mrp2 inhibitors decreased the biliary efflux of rosuvastatin most potently by 78.9%, 35%, 54.1%; benzbromarone, probenecid, sulfasalazine, respectively, while Bcrp and Bsep inhibitors showed much less effect (29.1%, 23.0% ,30.0%; Ko 134, mitoxanthrone, novobiocin, respectively, and 32.6%, 29.3%, 20.6%, glibenclamide, cyclosporine A, troglitazone, respectively). The marked decline of canalicular transport by Mrp2 inhibitors suggests major role of Mrp2 in this process; however, Bcrp and Bsep might also contribute to the biliary elimination of rosuvatatin in sandwich-cultured rat hepatocytes.

DrugBank Data that Cites this Article

Drug Transporters

Drug	Transporter	Kind	Organism	Pharmacological Action	Actions
Rosuvastatin	Bile salt export pump	Protein	Humans	Unknown	Substrate	Details