基于网络药理学和动物实验探究解毒复正方防治肝癌的作用机制

    Investigating the Mechanism of Jiedu Fuzheng Formula in Preventing and Treating Hepatocellular Carcinoma Based on Network Pharmacology and Animal Experiments

    • 摘要:
      目的  基于网络药理学与动物实验相结合的方法,探讨解毒复正方(Jiedu Fuzheng formula,JDFZ)抗肝癌的作用机制。
      方法 通过TCMSP、HERB数据库筛选获得JDFZ潜在作用靶点,整合GeneCards、OMIM及DrugBank数据库获取肝癌相关靶点,筛选两者交集靶点,构建蛋白质互作网络(protein interaction network,PPI)。将交集靶点导入STRING数据库,去除游离的蛋白点,并将“PPI score>0.9”的靶点信息导入Cytoscape 3.10.1软件,运用Network Analyzer功能对导入数据进行拓扑结构分析,分析筛选核心靶点后进行基因本体富集(Gene Ontology enrichment,GO)和基因组百科全书(Kyoto Encyclopedia of Genes and Genomes,KEGG)通路分析,并构建“药物-成分-靶点-疾病”网络图。进一步构建H22荷瘤小鼠模型进行实验验证。
      结果 通过TCMSP、HERB数据库筛选获得JDFZ潜在作用靶点342个(经去重处理),整合GeneCards、OMIM及DrugBank数据库获取肝癌相关靶点18707个。筛选两者交集靶点共314个,构建PPI识别出TP53、JUN、SRC、AKT1、MAPK3、EGFR等22个关键核心靶点,槲皮素、木犀草素、β-谷甾醇等是JDFZ核心成分;GO功能富集分析显示333个显著条目,包括生物过程264项、细胞组分25项、分子功能44项;KEGG通路富集分析揭示163条相关信号通路,主要涉及MAPK信号通路、细胞凋亡通路、TNF信号通路等。JDFZ可显著抑制肿瘤生长,瘤重显著降低(P<0.05),病理显示肿瘤细胞结构明显破坏;同时JDFZ可显著降低血清AST、ALT水平及AST/ALT比值(P<0.01或P<0.05);Western blotting检测显示肿瘤组织中p-EGFR/EGFR和p-ERK/ERK蛋白表达水平显著下调(P<0.01)。
      结论 本研究基于网络药理学与H22荷瘤小鼠动物实验,初步发现JDFZ可能通过调控EGFR/ERK信号通路轴抑制肝癌细胞增殖并减轻肝损伤,为JDFZ治疗肝癌提供了药理学依据。

       

      Abstract:
      OBJECTIVE To explore the mechanism of action of Jiedu Fuzheng formula(JDFZ) in anti-hepatocellular carcinoma, based on the method combining network pharmacology and animal experiments.
      METHODS Potential therapeutic targets of JDFZ were retrieved from the TCMSP and HERB databases, hepatocellular carcinoma-related targets were collected from GeneCards, OMIM, and DrugBank. The intersection targets of the two were screened to build a protein interaction network(PPI), the intersection targets were imported into the STRING database to remove free protein spots, and the target information of “PPI score>0.9” was imported into Cytoscape 3.10.1 software. The Network Analyzer function was used to analyze the topology structure of the imported data. After the core targets were analyzed and screened, Gene Ontology enrichment(GO) and Kyoto Encyclopedia of Genes and Genomes(KEGG) pathway analysis were carried out, and a “Drug-Ingredient-Target-Disease” network diagram was constructed. After the relevant data were exported, the mapping analysis was carried out by using the visualization platform. Furthermore, an H22 tumor-bearing mouse model was constructed for experimental validation.
      RESULTS Potential therapeutic targets of JDFZ were retrieved from the TCMSP and HERB databases, yielding 342 unique targets. Hepatocellular carcinoma-related targets(18 707) were collected from GeneCards, OMIM, and DrugBank. Intersection analysis identified 314 overlapping targets, and PPI network analysis revealed 22 core targets, including TP53, JUN, SRC, AKT1, MAPK3, and EGFR. Quercetin, luteolin and β-sitosterol were the core components of JDFZ. GO analysis identified 333 significant terms, encompassing 264 biological processes, 25 cellular components, and 44 molecular functions. KEGG pathway analysis highlighted 163 pathways, primarily involving the MAPK signaling pathway, apoptosis pathway, TNF signaling pathway, etc. JDFZ could significantly inhibit tumor growth, significantly reduce tumor weight(P<0.05), and pathology showed significant structural damage to tumor cells. Additionally, JDFZ markedly decreased serum AST and ALT levels and the AST/ALT ratio(P<0.01 or P<0.05). Western blotting analysis revealed significant downregulation of p-EGFR/EGFR and p-ERK/ERK protein expression in tumor tissues(P<0.01).
      CONCLUSION This study is based on network pharmacology and H22 tumor-bearing mouse animal experiments. The preliminary results suggest that JDFZ may inhibit liver cancer cell proliferation and reduce liver damage by regulating the EGFR/ERK signaling pathway axis, providing pharmacological evidence for JDFZ treatment of liver cancer.

       

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