首页|hsa-miR-181a-5p靶基因预测及生物信息学分析

hsa-miR-181a-5p靶基因预测及生物信息学分析

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目的 对hsa-miR-181a-5p进行系统的生物信息学分析,预测hsa-miR-181a-5p的靶基因、基因功能及信号通路,并对其进行生物学功能注释.方法 利用数据库对hsa-miR-181a-5p基因定位,分析其序列保守性和在人类组织器官中的表达情况;利用数据库进行靶基因预测分析;并将预测交集靶基因进行GO功能分析及KEGG通路富集分析和蛋白间相互作用(PPI)网络分析;最后利用A549细胞进行hsa-miR-181a-5p转染实验,进行转录组测序同步验证生物信息学预测结果.结果 发现基因定位于人类基因组chr1、chr9染色体,成熟序列在物种间具有高度保守性.3个数据库交集靶基因有483个,包含PTEN、MAPK8、AKT3等基因,其分布在胞浆等细胞组分,执行蛋白质结合等生物功能,并参与信号转导等生物学过程.靶基因富集于MAPK、PI3K-Akt、胰岛素抵抗、癌症中的miRNA等信号通路,其编码的蛋白间形成复杂网络图.实验后转录组测序结果验证了生信分析的准确性,对预测及富集结果提供了有力支撑.结论 hsa-miR-181a-5p在多种生物学过程发挥重要作用,尤其是在神经系统疾病、血液免疫系统疾病以及癌症的发生发展中其将成为相关疾病发生机制和防治研究的新靶点.
Target gene prediction and bioinformatics analysis for hsa-miR-181a-5p
Objective To systematically analyze the bioinformatics of hsa-miR-181a-5p,predict its target gene,gene function and signaling pathway of hsa-miR-181a-5p,and annotate its biological function.Methods Data-base was used to locate hsa-miR-181a-5p gene and analyze its sequence conservation and expression in human tissues and organs.The target gene prediction analysis was carried out by using database.GO function analysis,KEGG pathway enrichment analysis and protein-protein interaction(PPI)network analysis were performed to predict the intersecting target genes.Finally,A549 cells were transfected with hsa-miR-181a-5p,and transcrip-tome sequencing was performed to verify the bioinformatics prediction results.Results The results showed that the genes were located in chr1 and chr9 chromosomes of human genome,and the mature sequences were highly conserved among species.There are 483 intersecting target genes in the three databases,including PTEN,MAPK8,AK73 and other genes,which are distributed in the cytoplasm and other cell components.The intersec-ting target genes,enriched in MAPK,PI3K-Akt,insulin resistance,miRNA in cancer and other signaling path-ways,with proteins encoded by them forming complex network maps,perform biological functions such as protein binding,and participate in biological processes such as signal transduction.After the experiment,the transcrip-tome sequencing results verified the accuracy of bioinformatics analysis and provided strong support for prediction and enrichment results.Conclusion hsa-miR-181a-5p plays an important role in a variety of biological proces-ses,especially in the occurrence and development of diseases of the nervous system,blood and immune system,and cancer,and it will become a new target for the pathogenesis and prevention of related diseases.

hsa-miR-181a-5pbioinformatics analysissignal pathwayprotein interaction

王艳阳、刘婵、周雪、张隆泽、余丽梅、何志旭

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遵义医科大学附属医院贵州省细胞工程重点实验室,贵州遵义 563099

遵义医科大学组织损伤修复与再生医学省部共建协同创新中心,贵州遵义 563099

遵义医科大学基础医学院免疫学教研室,贵州遵义 563099

贵州省儿童医院,遵义医科大学附属医院小儿内科,贵州遵义 563099

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hsa-miR-181a-5p 生物信息学分析 信号通路 蛋白质相互作用

国家自然科学基金面上项目2020年教育部协同创新中心建设项目2020年贵州省科技支撑计划项目

32270848教科技函202039黔科合支撑20204Y192

2024

遵义医科大学学报
遵义医科大学

遵义医科大学学报

CSTPCD
ISSN:2096-8159
年,卷(期):2024.47(2)
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