Systematic Analysis of RNA Regulatory Network in Rat Brain after Ischemic Stroke.

Systematic Analysis of RNA Regulatory Network in Rat Brain after Ischemic Stroke.
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缺血性中风后大鼠脑内 RNA 调节网络的系统分析

DOI:
10.1155/2018/8354350
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发表时间:
2018
影响因子:
--
通讯作者:
Deng ZF
Deng ZF
中科院分区:
生物学3区
文献类型:
--
作者:
Liu J;Zhang KS;Hu B;Li SG;Li Q;Luo YP;Wang Y;Deng ZF

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尽管大量研究已经证实了缺血性脑卒中中存在大量microRNA(miRNAs)和长链非编码RNA(lncRNA),但对局部缺血的RNA调控网络仍知之甚少。在这项研究中,我们同时询问lncRNA,miRNA的表达谱,和mRNA的变化在局灶性脑缺血引起的短暂大脑中动脉闭塞。共表达网络分析显示,1924个新的lncRNA被鉴定,可能涉及脑损伤和DNA修复。此外,许多短散布元件(SINE)介导的lncRNA:mRNA双链体被鉴定,这意味着lncRNA介导Staufen1介导的mRNA衰变(SMD),这可能在局灶性缺血期间发挥作用。此外,基于竞争性内源性RNA(ceRNA)假说,揭示了缺血性卒中中功能性lncRNA:miRNA:mRNA相互作用的卒中调节ceRNA网络。总之,本工作报道了大量新的局灶性脑缺血应答的lncRNA,并构建了一个系统的RNA调控网络,突出了ncRNA在缺血性脑卒中中的作用。
Although extensive studies have identified large number of microRNAs (miRNAs) and long noncoding RNAs (lncRNAs) in ischemic stroke, the RNA regulation network response to focal ischemia remains poorly understood. In this study, we simultaneously interrogate the expression profiles of lncRNAs, miRNAs, and mRNAs changes during focal ischemia induced by transient middle cerebral artery occlusion. A set of 1924 novel lncRNAs were identified and may involve brain injury and DNA repair as revealed by coexpression network analysis. Furthermore, many short interspersed elements (SINE) mediated lncRNA:mRNA duplexes were identified, implying that lncRNAs mediate Staufen1-mediated mRNA decay (SMD) which may play a role during focal ischemia. Moreover, based on the competitive endogenous RNA (ceRNA) hypothesis, a stroke regulatory ceRNA network which reveals functional lncRNA:miRNA:mRNA interactions was revealed in ischemic stroke. In brief, this work reports a large number of novel lncRNAs responding to focal ischemia and constructs a systematic RNA regulation network which highlighted the role of ncRNAs in ischemic stroke.
tRNA 衍生的小非编码 RNA 响应缺血抑制血管生成
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