Differential Effects of Sunitinib on the Expression Profiles of Xenobiotic-Metabolizing Enzymes and Transporters in Rat Liver and Kidneys

Basic & Clinical Pharmacology & Toxicology
Hesham M KorashyBader A Moraished

Abstract

Sunitinib (SUN) is a multi-targeted tyrosine kinase inhibitor that was recently approved for the treatment of gastrointestinal tract and renal cancers. To date, very little is known about the effects of SUN on the expression of hepatic and renal xenobiotic-metabolizing enzymes (XMEs) and transporters. The present study was designed to investigate the capacity of chronic SUN treatment to modulate the mRNA and protein expression levels of phase I cytochrome P450 (CYP), phase II conjugating enzymes, and phase III transporters in rat liver and kidneys. For this purpose, SUN (25, 50 and 100 mg/kg) was injected IP into Wistar albino rats for 4 weeks; thereafter, the mRNA and protein expression levels of several XMEs and transporters were determined by RT-PCR and Western blot analysis, respectively. Real-time PCR analysis showed that SUN significantly induced the hepatic and renal CYP1A1, 1A2, 1B1, 2E1 and 4F4, whereas it inhibited CYP2C11 and 4A2. Furthermore, SUN specifically induced renal, but not hepatic, CYP2J3 and 3A2, while it induced only hepatic CYP4A1. With regard to phase II, SUN induced hepatic GSTA1 and UGT1A and renal NQO1 and UGT1A mRNA levels, whereas it inhibited renal GST1A expression. On the other hand, both renal a...Continue Reading

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Citations

Feb 21, 2019·PloS One·Marianne K O GrantBeshay N Zordoky
Jan 13, 2021·Biochemical Pharmacology·Minghao ChenLing Ye
Nov 14, 2020·Clinical Science·Alexa N CarreraBeshay N Zordoky

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