脓毒症心肌功能障碍关键基因的筛选及生物信息学分析
蒋万威 杨国辉
贵州医科大学临床医学院,贵州贵阳 550004
Screening of key genes and bioinformatics analysis of sepsis-induced myocardial dysfunction#br#
JIANG Wanwei YANG Guohui
School of Clinical Medicine, Guizhou Medical University, Guizhou Province, Guiyang 550004, China
摘要 目的 筛选脓毒症心肌功能障碍(SIMD)的关键基因,分析其主要参与的生物学过程。 方法 利用R软件对脓毒症患者及SIMD小鼠模型的数据集进行差异分析,提取SIMD相关基因,并进行生物学分析、相关性分析及蛋白质-蛋白质相互作用网络分析。 结果 脓毒症小鼠模型、脓毒症患者分别有143个和318个差异基因,其中包含84个SIMD基因,下调基因54个,上调基因30个。脓毒症及SIMD差异基因在基因本体和京都基因和基因组数据库富集分析中具有相似的生物学功能。ANXA3、S100A8、LCN2、LTF、KLHL2等为SIMD的关键基因;LTF、LCN2、SOCS3等为SIMD的关键蛋白。 结论 LCN2、LTF、ANXA3、S100A8、KLHL2、SOCS3等多个关键基因可能参与SIMD的病理生理过程,对SIMD的临床诊断、预后判断及治疗有进一步研究意义。
关键词 :
脓毒症 ,
脓毒症心肌功能障碍 ,
生物信息学分析 ,
高通量基因表达数据库 ,
关键基因
Abstract :Objective To screen the key genes of sepsis-induced myocardial dysfunction (SIMD), and analyze the main biological processes. Methods Data sets of sepsis patients and SIMD mouse models were analyzed differentially by R software, genes related to SIMD were extracted, biological analysis, correlation analysis, and protein-protein interaction network analysis were carried out. Results There were 318 and 143 differential genes in sepsis patients and animal models respectively, including 84 SIMD genes, 54 down-regulated genes and 30 up-regulated genes. Sepsis and SIMD differential genes had similar biological functions in gene ontology and Kyoto Encyclopedia of Genes and Genomes enrichment analysis. ANXA3, S100A8, LCN2, LTF, and KLHL2 were the key genes of SIMD; LTF, LCN2, and SOCS3 were the key proteins of SIMD. Conclusion Many key genes, such as LCN2, LTF, ANXA3, S100A8, KLHL2, and SOCS3 may involve in the pathophysiological process of SIMD, it is significant to further study the clinical diagnosis, prognosis, and treatment of SIMD.
Key words :
Sepsis
Sepsis-induced myocardial dysfunction
Bioinformatics
Gene expression omnibus
Key gene
基金资助: 贵州省卫生健康委员会科学技术基金项目(gzw jkj2020-1-026)。
通讯作者:
杨国辉(1966.7-),男,主任医师,硕士生导师,贵州医科大学附属医院内科ICU主任;研究方向:脓毒症。
作者简介 : 蒋万威(1991.3-),男,贵州医科大学临床医学院2019级重症医学专业在读硕士研究生;研究方向:脓毒症。
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