基于网络药理学及分子对接探讨痛泻要方治疗结直肠癌的作用机制

被引:9
作者
杨菱霞 [1 ]
丁雯雯 [1 ]
陆洁 [2 ]
凌鑫 [1 ]
余强 [3 ]
机构
[1] 苏州市第九人民医院消化内科
[2] 苏州市第九人民医院中医科
[3] 南京医科大学附属苏州医院消化内科
关键词
痛泻要方; 结直肠癌; 网络药理学; 分子对接;
D O I
10.13210/j.cnki.jhmu.20200825.002
中图分类号
R285 [中药药理学];
学科分类号
100806 [中药药理学];
摘要
目的:预测痛泻要方治疗结直肠癌(colorectal cancer,CRC)的作用机制。方法:通过TCMSP数据库筛选痛泻要方的活性化合物和靶点,Mala Cards数据库以"Colorectal cancer"为关键词检索提取CRC作用靶点,二者经映射去重后合并交集靶点。在DAVID 6.8数据库中对交集靶点进行GO功能富集分析及KEGG通路富集分析。使用Cytoscape 3.7.2软件构建"活性化合物-靶点"、"中药-活性化合物-CRC-靶点"网络,通过Network Analysis插件筛选痛泻要方治疗CRC的核心活性化合物和核心靶点。运用THE HUMAN PROTEIN ATLAS数据库对核心靶点的蛋白表达情况验证。依据Auto Dock Vina软件和Python脚本将核心活性化合物与核心靶点蛋白受体进行分子对接。结果:TCMSP数据库提示,痛泻要方共有34个活性化合物映射114个靶点;Mala Cards数据库提示,共有838个靶点与CRC密切相关,两数据集相互映射共获得52个交集靶点。GO功能富集分析提示,交集靶点共涉及1 410个条目参与(P<0.05),其生物过程主要富集于脂质代谢、激素反应、癌细胞增殖和凋亡;细胞组成主要影响CRC细胞线粒体膜电位、内质网应激;分子功能主要涉及氧化还原酶活性、蛋白激酶活性等,KEGG通路富集分析提示,交集靶点共涉及104条信号通路(P<0.05),主要涵盖PI3K/Akt、TNF、Toll样受体等。THE HUMAN PROTEIN ATLAS数据库显示,CRC组织与正常肠组织相比PTGS2、PTGS1、ESR1呈现较强的阳性蛋白表达。分子对接中汉黄芩素、山奈酚、β-谷甾醇与PTGS2、PTGS1、ESR1的结合能均小于≤-5.0 k J/mol,展现出较好的亲和力。结论:痛泻药方治疗CRC涉及多条信号通路及生物学过程,其主要活性成分汉黄芩素、山奈酚、β-谷甾醇与关键靶点PTGS2、PTGS1、ESR1结合可能是发挥作用的重要机制之一。
引用
收藏
页码:1503 / 1512
页数:10
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