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The potential of microRNAs in liver fibrosis

机译:microRNA在肝纤维化中的潜力

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摘要

MicroRNAs(miRNAs)are a class of ~. 22-nucleotides noncoding RNAs that regulate gene expression by specifically binding with 3'-untranslated region(3'-UTR)of target gene mRNAs to posttranscriptionally effect mRNA stability and translation, and play essential roles in a variety of biological processes, including cell development, proliferation, differentiation, and apoptosis. Liver fibrosis is the occurrence of liver cell necrosis and inflammatory stimulation, and is characterized by excessive accumulation of extracellular matrices(ECMs). In the fibrotic liver, hepatic stellate cells(HSCs), which are regulated by multiple signal transduction pathways, undergo myofibroblastic transdifferentiation and are generally regarded as the major ECM producer responsible for liver fibrosis. A growing body of evidence suggests that divergent miRNAs participate in liver fibrotic process and activation of HSC. Moreover, members of many signal transduction pathways are important targets for miRNAs. In this review, we make a summary on current understanding of the roles of miRNAs in the development of liver fibrosis, HSC functions and their potential as novel drug targets.
机译:MicroRNA(miRNA)是〜的一类。通过与靶基因mRNA的3'-非翻译区(3'-UTR)特异性结合来调控基因表达的22个核苷酸的非编码RNA,以转录后影响mRNA的稳定性和翻译,并在包括细胞发育在内的多种生物学过程中发挥重要作用,增殖,分化和凋亡。肝纤维化是肝细胞坏死和炎症刺激的发生,其特征是细胞外基质(ECMs)的过度积累。在纤维化肝中,受多种信号转导途径调节的肝星状细胞(HSC)经历了肌成纤维细胞转分化,通常被认为是负责肝纤维化的主要ECM生产者。越来越多的证据表明,不同的miRNA参与肝纤维化过程和HSC的激活。此外,许多信号转导途径的成员是miRNA的重要目标。在这篇综述中,我们对miRNA在肝纤维化发展中的作用,HSC功能及其作为新型药物靶标的潜力的当前理解作了总结。

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