Improved hepatic MRP2/ABCC2 transport activity in LPS-induced cholestasis by aquaporin-1 gene transfer.
[No authors listed]
摘要
Multidrug resistance-associated protein 2 (MRP2/ABCC2), a hepatocyte canalicular transporter involved in bile secretion, is downregulated in cholestasis triggered by lipopolysaccharide. The human aquaporin-1 (hAQP1) adenovirus-mediated gene transfer to liver improves cholestasis by incompletely defined mechanisms. Here we found that hAQP1 did not affect MRP2/ABCC2 expression, but significantly increased its transport activity assessed in situ with endogenous and exogenous substrates, likely by a hAQP1-induced increase in canalicular membrane cholesterol amount. Our results suggest that hAQP1-induced MRP2/ABCC2 activation contributes to the cholestasis improvement.
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基因功能
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原始数据
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文献解读
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