首页|基于高通量测序分析miRNA在左心室心肌肥厚中的表达及意义

基于高通量测序分析miRNA在左心室心肌肥厚中的表达及意义

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  • NETL
  • NSTL
  • 万方数据
目的 探讨基于高通量测序的表达差异microRNA(miRNA)在左心室心肌肥厚(left ventricular hypertrophy,LVH)患者中的表达水平及临床意义,并揭示可能的调控作用机制.方法 分别在 4 例 LVH患者和 4 例健康志愿者血浆样本中进行miRNA测序,并在 25 例健康志愿者和 35 例LVH患者血浆样本中进行实时荧光定量PCR(qRT-PCR)验证.通过预测差异性miRNA的靶基因、基因本体富集分析、京都基因与基因组百科全书信号通路分析、构建蛋白质-蛋白质相互作用网络等生物信息学分别进行分析,并通过ROC曲线下面积(AUCROC)评估miRNA对LVH的诊断价值.结果 共鉴定出 945 个差异表达的miRNA,其中 1 个显著上调,9 个显著下调.经 qRT-PCR 验证,hsa-miR-942-5p 和 hsa-miR-184 的表达水平显著下调;hsa-miR-942-5p的AUCROC为0.694 6,hsa-miR-184 的AUCROC为0.880 4.生物信息学分析显示,靶基因主要富集在细胞衰老、鞘脂代谢、TGF-β信号通路、p53、糖尿病代谢相关通路.结论 LVH患者血浆样本中hsa-miR-942-5p和hsa-miR-184 的表达水平显著降低,提示其具有良好的诊断潜力.
Expression and clinical significance of miRNA identified by high-throughput sequencing in left ventricular hypertrophy
Objective To investigate the expression levels and clinical significance of differentially expressed microRNAs(miRNAs)based on high-throughput sequencing in patients with left ventricular hypertrophy(LVH)and their possible regulatory mechanisms.Methods The miRNA sequencing was performed on plasma samples from 4 LVH patients and 4 healthy volunteers,and qRT-PCR validation was performed on plasma samples from 25 healthy volunteers and 35 LVH patients.The target genes of the obtained differentially expressed miRNA were predicted.The molecular function(MF),biological process(BP)and cellular components(CC)of these miRNAs were predicted by the Gene Ontology(GO)enrichment analysis,and their signal pathways were predicted by the Kyoto Encyclopedia of Genes and Genomes analysis.Meanwhile,the protein-protein interaction network was constructed.The diagnostic values of 2 differentially expressed miRNAs(hsa-miR-942-5p and hsa-miR-184)in LVH were analyzed by the area under the receiver operating characteristic(ROC)curve(AUCROC).Results A total of 945 differentially expressed miRNAs were identified,of which 1 and 9 were observed to be significantly upregulated and downregulated,respectively.The expression levels of hsa-miR-942-5p and hsa-miR-184 were verified by qRT-PCR to be significantly downregulated.The AUCROC of hsa-miR-942-5p and hsa-miR-184 were 0.694 6 and 0.880 4,respectively.Bioinformatics analysis revealed that the target genes were mainly enriched in the cell senescence,sphingolipid metabolism,and TGF-β,p53,and diabetic metabolism related signaling pathways.Conclusion The expression levels of hsa-miR-942-5p and hsa-miR-184 in plasma of LVH patients are significantly decreased,suggesting that they have good diagnostic potential.

miRNAleft ventricular hypertrophyhigh-throughput sequencingdiagnosis

张凯宇、李渊、胥婧祎、钱步云、孙康云、王峰

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南京医科大学附属苏州医院&苏州市立医院心血管病中心,江苏苏州 215008

miRNA 左心室心肌肥厚 高通量测序 诊断

江苏省卫生健康委科研项目苏州市"科教兴卫"青年科技项目苏州市科技发展计划项目苏州市科技发展计划项目南京医科大学姑苏学院科研项目苏州市姑苏卫生人才科研项目

M2021099KJXW2020038SKJY2021120SKJYD2021169GSKY20210202GSWS2022074

2024

10.13602/j.cnki.jcls.2024.09.12

临床检验杂志
江苏省医学会

临床检验杂志

CSTPCD
影响因子：0.746
ISSN：1001-764X
年,卷(期)：2024.42(9)