作者: Jiro Ogura , Takahiro Koizumi , Masahiro Segawa , Keisuke Yabe , Kaori Kuwayama
DOI: 10.1002/BDD.1882
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摘要: Quercetin-3-rhamnoglucoside (rutin) has a wide spectrum of biochemical and pharmacological activities. Rutin is absorbed mainly in its unmetabolized form. Organic anion transporting polypeptide (OATP) 2B1 major uptake transporter the intestine. Thus, it important for prevention adverse events to understand drug interactions mediated by OATP2B1 absorption process. This study assessed effect rutin on transport OATP2B1. stimulated estrone-3-sulfate (E-3-S), taurocholic acid (TCA), cholic (CA) rosuvastatin OATP2B1, but not p-coumaric or ferulic acid. The EC50 was 2.32 μm. Km value E-3-S presence (9.21 μm) almost same as that absence (8.53 μm). On other hand, Vmax (270 pmol/mg protein/min) 1.2-fold higher than (218 protein/min). Moreover, expression level cell membrane increased treatment with 5 min without alteration total level. increase localization at surface detected immunocytochemistry. stimulatory little weak may affect substrates, because taken daily foods intestinal concentration would reach range