Embryonic stem cell miRNAs and their roles in development and disease.

Embryonic stem cell miRNAs and their roles in development and disease.
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胚胎干细胞 miRNA 及其在发育和疾病中的作用。

DOI:
10.1016/j.semcancer.2012.04.009
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发表时间:
2012-10
影响因子:
14.5
通讯作者:
Ventura A
Ventura A
中科院分区:
医学1区
文献类型:
--
作者:
Vidigal JA;Ventura A

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MicroRNAs已成为基因表达的重要调节因子。在发育和疾病期间,miRNAs的调节控制着自我更新和分化、生存和凋亡之间的选择,并决定细胞对外部刺激的反应。在小鼠多能胚胎干细胞中,由四个多顺反子基因编码的一组令人惊讶的小miRNAs处于这种决定的中心。MiR-290~295、miR-302~367、miR-17~92和miR-106b~25编码具有高度相关序列的miRNAs,它们似乎控制着大量重叠的基因集。最近的研究强调了这些miRNAs在维持‘干性’和调节正常发育方面的重要性,并将它们表达的放松与各种人类疾病联系起来。
MicroRNAs have emerged as important modulators of gene expression. Both during development and disease, regulation by miRNAs controls the choice between self-renewal and differentiation, survival and apoptosis and dictates how cells respond to external stimuli. In mouse pluripotent embryonic stem cells, a surprisingly small set of miRNAs, encoded by four polycistronic genes is at the center of such decisions. miR-290~295, miR-302~367, miR-17~92 and miR-106b~25 encode for miRNAs with highly related sequences that seem to control largely overlapping gene sets. Recent studies have highlighted the importance of these miRNAs in the maintenance of ‘stemness’ and regulation of normal development and have linked the deregulation of their expression to a variety of human diseases.
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