miR-223-3p在高糖诱导的H9c2细胞损伤中的靶基因预测及相关通路分析  

Target gene prediction and related pathway analysis of miR-223-3p in high glucose induced H9c2 cell injury

作　　者：秦建宁 韩洋 谭瑶 虞乐天 屈顺林[1] QIN Jianning;HAN Yang;TAN Yao;YU Letian;QU Shunlin(Institute of Cardiovascular Disease,University of South China&Key Laboratory for Arteriosclerology of Hunan Province&Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease,Hengyang,Hunan 421001,China)

机构地区：[1]南华大学心血管疾病研究所、动脉硬化学湖南省重点实验室、湖南省动脉硬化性疾病国际科技创新合作基地,湖南省衡阳市421001

出　　处：《中国动脉硬化杂志》2024年第11期947-954,共8页Chinese Journal of Arteriosclerosis

基　　金：湖南省自然基金项目(2023JJ30526);湖南省卫健委重点项目(202102063633)。

摘　　要：[目的]通过生物信息学途径探究miR-223-3p在高糖环境下对H9c2细胞的影响,并结合转录组测序结果,分析其在糖尿病心肌病发病机制中的作用,旨在分子层面上发掘新的治疗靶点,探究miR-223-3p的具体作用机制。[方法]在高糖培养的H9c2细胞中分别转染miR-223-3p的抑制物及对照物,RT-qPCR检测两组细胞中miR-223-3p的表达差异;通过高通量测序对差异mRNA进行检测;用TopGO软件进行GO功能富集分析;DESeq2软件(v1.16.1)筛选差异表达基因,对检测结果的差异基因与miR-223-3p靶基因数据库共分析,预测miR-223-3p靶基因,并用RT-qPCR检测验证其表达变化。[结果]高糖处理的H9c2细胞活性明显降低,转录组测序结果提示对照组和miR-223-3p抑制剂组间的基因表达存在较为明显的差异。GO功能富集分析显示,预测靶基因集显著富集于G蛋白偶联受体活性、甘油基乙醚单加氧酶活性、细胞阴离子稳态和氯离子稳态等方面。KEGG通路富集分析显示,这些基因主要涉及TNF信号通路和IL-17信号通路。此外,它们还与1型糖尿病、细胞色素P450对外源性药物的代谢作用等相关疾病和生理过程有关。靶基因预测提示miR-223-3p可能与Cxcl10、Creb3l3、Mmp3和Bcl3等的表达变化有关。[结论]在高糖诱导的H9c2细胞损伤中miR-223-3p及其下游靶基因的预测可能为糖尿病心肌病的治疗提供新的靶点,对于揭示糖尿病心肌病的发病机制以及开发新的治疗策略具有重要意义。Aim The effect of miR-223-3p on H9c2 cells in high glucose environments was investigated through bioinformatics and its role in the mechanism of development of diabetic cardiomyopathy was analyzed in conjunction with transcriptomic sequencing results.The objective was to identify novel therapeutic targets at the molecular level and explore the specific mechanisms of action of miR-223-3p.Methods In high glucose-cultivated H9c2 cells,miR-223-3p inhibition and control were transfected,respectively.RT-qPCR was used to detect the differences in miR-222-3p expression between the two cell groups.Differential mRNA was identified through high-throughput sequen-cing.GO functional analysis was conducted using TopGO software.DESeq2 software(v1.16.1)filtered differentially expressed genes and analyzed them using a miR-223-3p target gene database.This process predicted the target genes of miR-223-3p and validated the changes in their expression through RT-qPCR.Results The activity of H9c2 cells trea-ted with high glucose decreased significantly.Significant differences in gene expression between the control group and the inhibitor group had been indicated by transcriptomic sequencing results.GO function enrichment analysis showed that the predicted target gene set was significantly enriched in G protein-coupled receptor activity,glycerol ether monooxygenase ac-tivity,cellular anion homeostasis,and chloride ion homeostasis,among others.KEGG pathway enrichment analysis fur-ther showed that these genes were mainly involved in the TNF signaling pathway and the IL-17 signaling pathway.In ad-dition,they were related to type 1 diabetes,cytochrome P450 metabolism of exogenous drugs,and other diseases and phys-iological processes.Target gene prediction suggested that miR-223-3p may be associated with the expression changes of Cxcl10,Creb3l3,Mmp3,and Bcl3,among others.Conclusion The prediction of miR-223-3p and its downstream target genes in high glucose induced H9c2 cell injury may provide new targets for the treatment of diabetic cardi

关 键 词：糖尿病心肌病 miR-223-3p H9C2细胞 高通量测序 GO功能富集分析 KEGG通路富集分析 

分 类 号：R5[医药卫生—内科学] R363[医药卫生—临床医学]