Interaction of Mrp2 with radixin causes reversible canalicular Mrp2 localization induced by intracellular redox status
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چکیده
منابع مشابه
Canalicular Mrp2 localization is reversibly regulated by the intracellular redox status.
Oxidative stress is known to be a common feature of cholestatic syndrome. We have described the internalization of multidrug resistance-associated protein 2 (Mrp2), a biliary transporter involved in bile salt-independent bile flow, under acute oxidative stress, and a series of signaling pathways finally leading to the activation of novel protein kinase C were involved in this mechanism; however...
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Mottino, Aldo D., Fernando A. Crocenzi, Enrique J. Sánchez Pozzi, Luis M. Veggi, Marcelo G. Roma, and Mary Vore. Role of microtubules in estradiol-17 -D-glucuronide-induced alteration of canalicular Mrp2 localization and activity. Am J Physiol Gastrointest Liver Physiol 288: G327–G336, 2005. First published September 16, 2004; doi:10.1152/ajpgi.00227.2004.—Estradiol-17 -D-glucuronide (E2-17G) i...
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Estradiol-17beta-D-glucuronide (E2-17G) induces a marked but reversible inhibition of bile flow in the rat together with endocytic retrieval of multidrug resistance-associated protein 2 (Mrp2) from the canalicular membrane to intracellular structures. We analyzed the effect of pretreatment (100 min) with the microtubule inhibitor colchicine or lumicholchicine, its inactive isomer (1 micromol/kg...
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Interindividual variability in drug response in nonalcoholic steatohepatitis (NASH) can be mediated by altered regulation of drug metabolizing enzymes and transporters. Among these is the mislocalization of multidrug resistance-associated protein (MRP2)/Mrp2 away from the canalicular membrane, which results in decreased transport of MRP2/Mrp2 substrates. The exact mechanism of this mislocalizat...
متن کاملMrp2 is involved in benzylpenicillin-induced choleresis.
Benzylpenicillin (PCG; 180 micromol/kg), a classic beta-lactam antibiotic, was intravenously given to Sprague-Dawley (SD) rats and multidrug resistance-associated protein 2 (Mrp2)-deficient Eisai hyperbilirubinemic rats (EHBR). A percentage of the [(3)H]PCG was excreted into the bile of the rats within 60 min (SD rats: 31.7% and EHBR: 4.3%). Remarkably, a transient increase in the bile flow ( a...
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ژورنال
عنوان ژورنال: Biochimica et Biophysica Acta (BBA) - Molecular Basis of Disease
سال: 2011
ISSN: 0925-4439
DOI: 10.1016/j.bbadis.2011.07.015