基于网络药理学和分子对接技术探讨葛花-枳椇子治疗酒精性肝损伤的潜在作用机制

目的: 利用网络药理学和分子对接技术对葛花-枳椇子治疗酒精性肝损伤（ALI）的潜在作用机制进行研究。方法: 先利用中药系统药理学数据库与分析平台（TCMSP）和Swiss数据库搜集与葛花、枳椇子药材相关的化学成分及作用靶点，并以口服利用度（OB）≥30%和类药性（DL）≥0.18对化合物进行筛选；同时，使用GeneCard、DrugBank数据库获取与ALI相关的靶点，借助韦恩图映射葛花-枳椇子治疗ALI的潜在作用靶点，再采用String数据库和Cytoscape软件构建蛋白-蛋白相互作用网络及“药材-潜在活性成分-作用靶点”相互作用网络；接着在DAVID和Reactome数据库中对潜在作用靶点进行基因本体（GO）和京都基因与基因组百科全书（KEGG）通路富集分析；最后，使用AutoDock Vina软件将潜在活性成分与核心靶点进行分子对接验证。结果: 在葛花-枳椇子中，共筛选出21个与疾病相关的潜在活性成分和431个潜在作用靶点，涉及蛋白结合、ATP结合等273种生物功能及磷脂酰肌醇3-激酶-蛋白激酶B（PI3K-Akt）信号通路、TNF信号通路等90条KEGG代谢通路和信号转导、免疫系统等362条Reactome通路。分子对接结果显示，21个潜在活性成分与核心靶点蛋白激酶B（Akt）1、肿瘤蛋白p53（TP53）、IL-6均有较好的亲和力。结论: 本研究结果揭示了葛花-枳椇子治疗ALI的多成分、多靶点、多途径的作用特点，并预测了可能的药效物质、关键靶点和作用通路，为其新药开发和作用机制研究提供了理论基础。

Study on the mechanism of Flos Puerariae and Semen Hoveniae in treatment of alcoholic liver injury based on network pharmacology and molecular docking

Objective: To explore the mechanism of Flos Puerariae and Semen Hoveniae in treatment of alcoholic liver injury (ALI) based on network pharmacology and molecular docking. Methods: The information of chemical constituents and targets of Flos Puerariae and Semen Hoveniae was collected from TCMSP and Swiss databases, and the threshold values of oral bioavailability (OB) ≥ 30%, drug likeness (DL) ≥0.18 were used to screen the potential active compounds. The GeneCard and DrugBank databases were used to obtain the targets corresponding to ALI. The common targets were queried using Venn Diagram, and the network of PPI and Gene Ontology (GO) functional enrichment analysis and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis were performed through DAVID and Reactome database. Autodock Vina software was used for molecular docking of potential ingredients and key targets. Results: A total of 21 potential active compounds and 431 therapeutic targets were gathered in Flos Puerariae and Semen Hoveniae, which involved 273 biological functions, 90 KEGG pathways and 362 Reactome pathways. The GO functions involved protein binding, ATP binding, etc.; the KEGG pathways mainly included PI3K-Akt signaling pathway and TNF signaling pathway; the Reactome pathways contained signal transduction and immune system, etc. The results of molecular docking showed that 21 potential active ingredients had good affinity with the core targets Akt1, TP53 and IL-6. Conclusion: The network pharmacology and molecular docking analysis demonstrate the synergetic effect of Flos Puerariae and Semen Hoveniae with multi-compounds, multi-targets and multi-pathways in the treatment of ALI; and also predict the possible medicinal substance, key targets and pathways, which provides clues for the new drug development and mechanism research.