首页|基于GEO芯片和分子对接探讨小檗碱治疗溃疡性结肠炎活动期的机制

基于GEO芯片和分子对接探讨小檗碱治疗溃疡性结肠炎活动期的机制

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目的 通过GEO芯片数据和分子对接探寻小檗碱治疗溃疡性结肠炎(UC)活动期的潜在机制.方法 利用PharmMapper获取小檗碱分子靶点;检索GEO数据库中UC相关芯片数据,借助R语言分析差异基因;对小檗碱分子靶标与UC差异基因进行富集分析;将小檗碱分子靶点与UC差异基因的交集作为关键基因,通过Cytoscape软件寻找潜在基因蛋白;利用分子对接技术分析小檗碱分子与UC关键基因、潜在基因蛋白的结合情况.结果 筛选出小檗碱分子靶点255个;对GEO数据库的GSE107499芯片分析,筛选出860个差异基因,包括545个上调基因和315个下调基因;比对UC差异基因与小檗碱靶点KEGG富集分析,推测小檗碱治疗UC与调节趋化因子信号通路、T细胞受体信号通路及PPAR信号通路关系密切;对小檗碱治疗UC的关键基因网络拓扑分析,筛选出11个小檗碱治疗UC潜在基因蛋白,分子对接验证表明配体与受体具有较好的结合活性.结论 小檗碱通过多靶点、多途径发挥对UC的治疗作用,其机制可能与调节T细胞免疫和炎症因子水平有关.
Investigating the Mechanism of Berberine for Treating Active Ulcerative Colitis Based on GEO Chip Data and Molecular Docking
Objective:To investigate the potential mechanism of berberine in the treatment of ulcerative colitis(UC)through GEO chip data and molecular docking.Methods:The molecular targets of berberine were obtained by Pharm Mapper server;the UC related chip data in GEO database were retrieved,and the differential genes were analyzed by R language;the differential genes between berberine molecular target and UC were enriched and ana-lyzed;the intersection of berberine molecular target and UC differential genes was taken as the key gene,and the potential gene proteins were found by Cytoscape software;the binding of berberine to key genes and potential gene proteins of UC was analyzed by molecular docking technology.Results:A total of 255 molecular targets of berber-ine were screened;based on the analysis of GSE107499 chip in GEO database,860 differential genes were screened,including 545 up-regulated genes and 315 down-regulated genes;the functional annotation of berberine target go was mainly concentrated in the biological processes such as the regulation of transcription factors,DNA transcription and the regulation of tyrosine kinase activity;comparing the enrichment analysis of UC differential gene and berberine target KEGG,it was speculated that berberine treatment of UC was closely related to chemo-kine signaling pathway,T cell receptor signaling pathway and PPAR signaling pathway;through the topological analysis of the key gene network of berberine in the treatment of UC,11 potential gene proteins of berberine in the treatment of UC were selected.The molecular docking verification showed that the ligand and receptor had good binding activity.Conclusion:Berberine exerts its therapeutic effect on UC through multiple targets and pathways,and its mechanism may be related to regulation of immunity and inflammation.

Ulcerative colitisBerberineGEO data miningMolecular dockingMechanism

王喜霞、刘金响、马小兵、史英、张桥、高二鹏、张益珊

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陕西中医药大学第二附属医院,陕西咸阳 712000

陕西中医药大学,陕西咸阳 712000

溃疡性结肠炎 小檗碱 GEO数据挖掘 分子对接 作用机制

2024

中国中医急症
中华中医药学会

中国中医急症

CSTPCD
影响因子:1.144
ISSN:1004-745X
年,卷(期):2024.33(9)