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Regulation of microRNA expression: the hypoxic component.

机译:microRNA表达的调节:低氧成分。

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摘要

microRNAs are involved in a wide variety of normal and pathological cellular processes, including tumorigenic transformation. Despite significant progress made towards understanding their mechanisms of action, much less is known about the regulation of expression of specific microRNAs. Recent reports have established a link between hypoxia, a key feature of the tumor microenvironment, and a group of microRNAs. Select members of this group seem to affect apoptotic signaling in a hypoxic environment and are also predicted to target genes of critical importance for tumor biology. Interestingly, most hypoxia-induced microRNAs are also overexpressed in human cancers, suggesting a role in tumorigenesis. We hereby discuss the known and predicted regulators of microRNA expression and approaches for expanding this fledgling research area.
机译:microRNA与多种正常和病理性细胞过程有关,包括致瘤转化。尽管在了解它们的作用机理方面取得了重大进展,但对特定microRNA表达调控的了解却很少。最近的报道建立了缺氧(一种肿瘤微环境的关键特征)与一组microRNA之间的联系。该组中的精选成员似乎在缺氧环境中影响凋亡信号转导,并且也预计将靶向对肿瘤生物学至关重要的基因。有趣的是,大多数缺氧诱导的microRNA在人类癌症中也过表达,提示其在肿瘤发生中的作用。我们在此讨论microRNA表达的已知和预测调控因子,以及扩大这一新兴研究领域的方法。

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