[关键词]
[摘要]
目的 探寻连花清瘟方抗冠状病毒的物质基础及作用机制,为新型冠状病毒肺炎(COVID-19)的中医药治疗提供参考。方法 借助TCMSP、Batman、Swiss Target Prediction等数据库检索连花清瘟方中药味的化学成分和作用靶点。通过GeneCards筛选出冠状病毒的疾病靶点。使用Cytoscape软件构建“药物-成分-靶点-疾病”网络和潜在靶点的相互作用关系,通过富集分析预测作用机制,并将连花清瘟方的主要活性成分与新型冠状病毒(SARS-CoV-2)3CL水解酶(Mpro)、血管紧张素转化酶II(ACE2)进行分子对接验证。结果 挖掘出连花清瘟方中100种活性成分、636个药物靶点,冠状病毒347个疾病靶点,得到药物-疾病共同靶点67个,关键靶点涉及PTGS2、IL6、CASP3、MAPK1、EGFR、ACE2等。GO富集分析共得到条目1 946个,主要涉及T细胞活化、病毒受体、炎症反应等。KEGG通路富集筛选出166条信号通路,包括肾素-血管紧张素系统、Toll样受体信号通路、JAK-STAT信号通路、T细胞受体信号通路、TNF信号通路等。分子对接结果显示山柰酚、槲皮素、木犀草素与Mpro有较好的结合能力;甘草次酸、豆甾醇、靛蓝与ACE2有较好的结合能力。结论 连花清瘟方可通过多成分、多靶点、多通路作用于冠状病毒,其主要成分与Mpro、ACE2有较好的结合能力,从而可能对COVID-19有治疗作用。
[Key word]
[Abstract]
Objective To explore the active compounds and mechanism of Lianhua Qingwen Prescription for the treatment of coronavirus, and provide a reference for the treatment of COVID-19. Methods With the help of TCMSP, Batman, Swiss Target Prediction and other databases, the chemical constituents and targets of Lianhua Qingwen Prescription were retrieved. Coronavirus disease targets were screened by GeneCards. Cytoscape software was used to construct a "drug-component-target-disease" interaction network map and potential target interactions, and the action mechanism was predicted through enrichment analysis. The main active ingredients of Lianhua Qingwen Prescription were verified by molecular docking with Mpro and ACE2. Results A total of 100 active ingredients, 636 drug targets, and 347 disease targets were excavated, and 67 drug-disease common targets were obtained. The key targets involved PTGS2, IL6, CASP3, MAPK1, EGFR, ACE2, etc. A total of 1 946 entries were obtained by GO enrichment analysis, which mainly involved T cell activation, viral receptors, and inflammatory responses. KEGG pathway enrichment screened 166 signaling pathways, including renin-angiotensin system, Toll-like receptor signaling pathway, JAK-STAT signaling pathway, T cell receptor signaling pathway, TNF signaling pathway and so on. The molecular docking results showed that kaempferol, quercetin and luteolin had good binding ability with Mpro; And glycyrrhetinic acid, stigmasterol, indigo had good binding ability with ACE2. Conclusion Lianhua Qingwen Prescription acts on coronavirus through multiple components, multiple targets, and multiple pathways. The main components have good binding ability with Mpro and ACE2, so as to have a therapeutic effect on COVID-19.
[中图分类号]
R285
[基金项目]
国家自然科学基金资助项目(81873340)