MicroRNA functions in stress responses.

MicroRNA functions in stress responses.
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DOI:
10.1016/j.molcel.2010.09.027
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发表时间:
2010-10-22
期刊:
影响因子:
16
通讯作者:
Sharp PA
Sharp PA
中科院分区:
生物学1区
文献类型:
--
作者:
Leung AK;Sharp PA

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微小核糖核酸(miRNAs)是一类约22个核苷酸的短链非编码核糖核酸,在基本的细胞过程中发挥关键作用,包括细胞如何对环境变化或广义上的应激作出反应。在对应激作出反应时,细胞要么选择恢复,要么重新编程其基因表达模式。这一决定部分是由微小核糖核酸的功能介导的,特别是通过调节微小核糖核酸的数量、信使核糖核酸靶标的数量,或者微小核糖核酸 - 蛋白质复合物的活性/作用方式。反过来,这些变化决定了应激时所表达的基因产物的特异性、时间和浓度。这些过程的失调会导致慢性疾病,包括癌症。
microRNAs (miRNAs) are a class of ~22 nucleotide short non-coding RNAs that play key roles in fundamental cellular processes, including how cells respond to changes in environment or, broadly defined, stresses. Responding to stresses, cells either choose to restore or re-program their gene expression patterns. This decision is partly mediated by miRNA functions, in particular, by modulating the amount of miRNAs, the amount of mRNA targets, or the activity/mode of action of miRNA-protein complexes. In turn, these changes determine the specificity, timing and concentration of gene products expressed upon stresses. Dysregulation of these processes contributes to chronic diseases, including cancers.
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