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Construction and analysis of a lncRNA-miRNA-mRNA network based on competitive endogenous RNA reveals functional lncRNAs in diabetic cardiomyopathy

机译:基于竞争性内源性RNA的LNCRNA-miRNA-mRNA网络的构建与分析显示糖尿病心肌病的功能性LNCRNA

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Diabetic cardiomyopathy (DCM) is a major cause of mortality in patients with diabetes, particularly those with type 2 diabetes. Long non-coding RNAs (lncRNAs), including terminal differentiation-induced lncRNA (TINCR), myocardial infarction-associated transcript (MIAT) and H19, serve a key role in the regulation of DCM. MicroRNAs (miRNAs/miRs) can inhibit the expression of mRNA at the post-transcriptional level, whereas lncRNAs can mask the inhibitory effects of miRNAs on mRNA. Together, miRNAs and lncRNAs form a competitive endogenous non-coding RNA (ceRNA) network that regulates the occurrence and development of various diseases. However, the regulatory role of lncRNAs in DCM is unclear. In this study, a background network containing mRNAs, miRNAs and lncRNAs was constructed using starBase and a regulatory network of DCM was screened using Cytoscape. A functional lncRNA, X-inactive specific transcript (XIST), was identified in the disease network and the main miRNAs (miR-424-5p and miR-497-5p) that are regulated by XIST were further screened to obtain the ceRNA regulatory network of DCM. In conclusion, the results of this study revealed that lncRNAs may serve an important role in DCM and provided novel insights into the pathogenesis of DCM.
机译:糖尿病心肌病(DCM)是糖尿病患者死亡率的主要原因,特别是糖尿病患者的主要原因。长期非编码RNA(LNCRNA),包括末端分化诱导的LNCRNA(TINCR),心肌梗死相关转录物(MIAT)和H19,用于调节DCM的关键作用。 MicroRNAs(miRNA / mirs)可以抑制转录后水平mRNA的表达,而LNCRNA可以掩盖miRNA对mRNA的抑制作用。 MiRNA和LNCRNA在一起形成竞争性内源性非编码RNA(CERNA)网络,该网络调节各种疾病的发生和发展。然而,DCM中LNCRNA的调节作用尚不清楚。在该研究中,使用Starbase构建含有MRNA,MIRNA和LNCRNA的背景网络,使用Cytoscape筛选DCM的调节网络。在疾病网络中鉴定出函数LNCRNA,X-Onmact特异性转录物(XIST),并进一步筛选由XIST调节的主要miRNA(miR-424-5p和miR-497-5p),以获得Cerna监管网络DCM。总之,该研究的结果表明,LNCRNA可以在DCM中发挥重要作用,并为DCM的发病机制提供了新的洞察。

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