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首页> 外文期刊>Cellular Signalling >Long non-coding RNA ANRIL (CDKN2B-AS) is induced by the ATM-E2F1 signaling pathway
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Long non-coding RNA ANRIL (CDKN2B-AS) is induced by the ATM-E2F1 signaling pathway

机译:ATM-E2F1信号通路诱导长非编码RNA ANRIL(CDKN2B-AS)

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摘要

The maintenance of genome integrity is essential for the proper function and survival of all organisms. Human cells have evolved prompt and efficient DNA damage response to eliminate the detrimental effects of DNA lesions. The DNA damage response involves a complex network of processes that detect and repair DNA damage, in which long non-coding RNAs (lncRNAs), a new class of regulatory RNAs, may play important roles. Recent studies have identified a large number of lncRNAs in mammalian transcriptomes. However, little is known about the regulation and function of lncRNAs in the DNA damage response. In the present study, we demonstrate that one specific lncRNA, ANRIL, is transcriptionally up-regulated by the transcription factor E2F1 in an ATM-dependent manner following DNA damage, and elevated levels of ANRIL suppress the expression of INK4a, INK4b and ARF at the late-stage of DNA damage response, allowing the cell to return to normal at the completion of the DNA repair.
机译:基因组完整性的维持对于所有生物的正常功能和生存至关重要。人类细胞已经进化出迅速而有效的DNA损伤反应,以消除DNA损伤的有害影响。 DNA损伤反应涉及检测和修复DNA损伤的复杂过程网络,其中长的非编码RNA(lncRNA)是一类新的调节性RNA,可能起重要作用。最近的研究已经在哺乳动物转录组中鉴定出大量的lncRNA。但是,关于lncRNA在DNA损伤反应中的调控和功能知之甚少。在本研究中,我们证明了一种特定的lncRNA,即ANRIL,在DNA损伤后被转录因子E2F1以ATM依赖的方式转录上调,并且升高的ANRIL水平抑制了INK4a,INK4b和ARF在DNA损伤反应的后期,使细胞在DNA修复完成后恢复正常。

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