Regulation of miRNA biogenesis as an integrated component of growth factor signaling.

Regulation of miRNA biogenesis as an integrated component of growth factor signaling.
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DOI:
10.1016/j.ceb.2012.12.005
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发表时间:
2013-04
影响因子:
7.5
通讯作者:
Hata, Akiko
Hata, Akiko
中科院分区:
生物学2区
文献类型:
--
作者:
Blahna, Matthew T.;Hata, Akiko

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通过细胞信号通路对microRNAs(MiRNA)的转录调控,特别是在生长因子调控的背景下,是一种被广泛认识的现象,具有广泛的意义。然而,最近的一些研究表明,不仅是转录,而且miRNAs的加工作为对各种刺激和环境变化的综合生理反应的一部分受到调节。典型的miRNA生物发生途径;由RNaseIII酶DROSHA和DICER进行的一系列核裂解步骤,是作为生理和病理反应的一部分调节miRNA表达的新兴调控中心。在这篇文章中,我们使用了成熟的生长因子信号通路,如转化生长因子-β(转化生长因子-β)、蛋白激酶B(也称为Akt)和细胞外信号调节激酶(ERK)来阐明基本的细胞信号通路如何调节miRNA生物发生途径中这些组成部分的活性,以获得最佳的miRNA表达模式。
Transcriptional control of microRNAs (miRNA) by cell signaling pathways, especially in the context of growth factor regulation, is a widely recognized phenomenon with broad-reaching implications. However, several recent studies indicate that not just transcription, but also processing of miRNAs is subject to regulation as part of an integrated physiological response to various stimuli and environmental changes. The canonical miRNA biogenesis pathway; sequential steps of nucleolytic cleavage by the RNase III enzymes Drosha and Dicer, are emerging regulatory hubs for the modulation of miRNA expression as part of both physiological and pathological responses. In this article we use well-characterized growth-factor signaling pathways such as transforming growth factor-β (TGF-β), Protein Kinase B (PKB, also known as Akt) and extracellular-signal-regulated kinase (ERK) to illustrate how basic cell signaling pathways modulate the activities of these components of the miRNA biogenesis pathway to achieve optimal miRNA expression patterns.
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