摘要
目的 基于网络药理学分析黄柏治疗肝损伤的作用及分子机制,并通过小鼠体内实验验证相关预测靶点及黄柏提取物-黄柏多糖对免疫性肝损伤的保护作用.方法 利用TCMSP和Swiss target prediction数据库检索并筛选黄柏的有效成分及作用靶点,然后在GeneCards和OMIM网站获得疾病相关靶点,取化合物与疾病交集靶点做蛋白互作分析、GO生物功能和KEGG信号途径富集分析,接着对化合物及关键靶点蛋白进行分子对接,最后建立刀豆蛋白A(Con A)诱导的小鼠肝损伤模型探讨黄柏提取物治疗肝损伤的作用机制.结果 黄柏中共筛选出37个有效成分,其治疗关键靶点为肿瘤坏死因子α(TNF-α)、丝氨酸/苏氨酸蛋白激酶1(AKT1)、信号转导与转录激活因子3(STAT3)、表皮生长因子受体(EGFR)和半胱天蛋白酶3(CASP3)等,富集分析显示黄柏可能通过MAPK级联反应的正向调控、氧化应激反应等分子机制及调控PI3K-Akt信号通路、脂质和动脉粥样硬化等通路发挥对肝脏的保护作用.动物实验发现黄柏多糖灌胃处理可提高肝组织中超氧化物歧化酶(SOD)、过氧化氢酶(CAT)活性,降低血清碱性磷酸酶(ALP)、天冬氨酸氨基转移酶(AST)及肝组织丙二醛(MDA)水平,调控血清炎症因子白细胞介素(IL)-6、IL-1β、肿瘤坏死因子α(TNF-α)、转化生长因子β1(TGF-β1)的表达,并降低肝组织中TNF-αmRNA表达.结论 黄柏可通过作用于TNF-α、AKT1、STAT3、EGFR和CASP3等靶点,干预脂质和动脉粥样硬化通路来减轻氧化应激反应和炎症反应,达到保肝作用.
Abstract
Objective To analyze the effect and molecular mechanism of phellodendron amurense in the treatment of liver injury based on network pharmacology,and to verify the relevant prediction targets and the protective effect of phellodendron amurense extract-Phellodendron amurense polysaccharide on immune liver injury through mice.Methods TCMSP and Swiss target prediction databases were used to retrieve and screen phellodendron amurenses active components and action targets,and then obtain disease-related targets on GeneCards and OMIM websites,and take compounds and disease intersection targets for protein interaction.Analysis,GO biological function and KEGG signaling pathway enrichment analysis,followed by molecular docking of compounds and key target proteins,and finally established a mouse liver injury model induced by Daodou protein A(Con A)to explore the mechanism of phellodendron amurense extract in the treatment of liver injury.Results 37 active ingredients were screened.The key targets for their treatment were tumor necrosis factor α(TNF-α),serine/threonine protein kinase 1(AKT1),signal transduction and transcription activation factor 3(STAT3),epidermal growth factor receptor(EGFR)anditin.Enzyme 3(CASP3)and other enrichment analysis showed that phellodendron amurense might play a protective role in protecting the liver through molecular mechanisms such as positive regulation of MAPK cas-cade reaction,oxidative stress response and regulatory PI3K-Akt signaling pathway,lipid and atherosclerosis.Ani-mal experiments had found that the gastric treatment of phellodendron amurense polysaccharide could improve the activity of superoxide dismutase(SOD)and catalase(CAT)in liver tissue,reduce the levels of serum alkaline phosphatase(ALP),aspartate aminotransferase(AST)and malonaldehyde(MDA)in liver tissue,and regulate serum inflammatory factor while the expression of intercitin(IL)-6,IL-1 β,tumor necrosis factor α(TNF-α),ac-tivated the expression of transforming growth factor β1(TGF-β1),and reduced TNF-α mRNA expression in liver tissue.Conclusion Phellodendron amurense can intervene in lipid and atherosclerosis pathways by acting on tar-gets such as TNF-α,AKT1,STAT3,EGFR and CASP3 to reduce oxidative stress and inflammatory reactions and achieve liver protection.
基金项目
贵州省科技计划(黔科合基础[2020]1Y389)
贵州省科技计划(黔科合基础-ZK[2022]一般457)
贵州省教育厅青年科技人才成长项目(黔教合KY字[2018]205)
国家科技期刊平台
NSTL
万方数据