基于网络药理学、分子对接和孟德尔随机化探究重楼皂苷Ⅰ的抗胃癌机制
褚天璐 , 任雯沁 , 杨培培 , 徐媛媛 , 滕钰浩 , 舒鹏
山西医科大学学报 ›› 2025, Vol. 56 ›› Issue (9) : 983 -990.
基于网络药理学、分子对接和孟德尔随机化探究重楼皂苷Ⅰ的抗胃癌机制
Mechanism of Polyphyllin Ⅰ in treating gastric cancer based on network pharmacology, molecular docking and Mendelian randomization
目的 探讨中药活性成分重楼皂苷Ⅰ治疗胃癌的作用靶点及分子机制,为其临床应用提供理论依据。 方法 基于网络药理学筛选重楼皂苷Ⅰ与胃癌的共有靶点,构建蛋白质互作(PPI)网络并筛选核心靶点;通过GO和KEGG富集分析揭示相关通路机制;利用分子对接验证核心靶点与重楼皂苷Ⅰ的结合活性;采用两样本孟德尔随机化方法分析靶点与胃癌的因果关联。 结果 共筛选出41个重楼皂苷Ⅰ-胃癌的交集靶点,PPI网络分析确定了ESR1、HSP90AA1、NFκB1、MTOR、HDAC1、CDK4、HDAC2、AR、PIK3R1、TLR4共10个核心靶点。GO和KEGG分析显示10个核心靶点主要参与PI3K-Akt信号通路、炎症反应及细胞周期调控。分子对接表明重楼皂苷Ⅰ与10个核心靶点的结合能均低于-5 kcal/mol,结合稳定。MR分析证实TLR4与胃癌发病存在显著因果关联(PIVW=0.043,OR=1.138)。 结论 重楼皂苷Ⅰ可能通过靶向TLR4、NF-κB1等基因,抑制PI3K-Akt通路活性,从而实现对胃癌的治疗作用。
Objective To explore the target and molecular mechanism of Polyphyllin Ⅰ, the active ingredient of traditional Chinese medicine, in the treatment of GC, and provide theoretical basis for its clinical application. Methods Based on network pharmaco⁃logy, the common targets of Polyphyllin Ⅰ and GC were screened, the PPI network was constructed, and the core targets were screened. The relevant pathway mechanism was revealed by GO and KEGG enrichment analysis. Molecular docking was used to verify the binding activity of the core target and Polyphyllin Ⅰ. Two-sample MR analysis was employed to analyze the causal association between the target genes and GC. Results A total of 41 intersection targets of Polyphyllin Ⅰ-GC were screened, 10 core targets including ESR1, HSP90AA1, NFκB1, MTOR, HDAC1, CDK4, HDAC2, AR, PIK3R1, and TLR4 were identified by PPI network analysis. GO and KEGG analysis showed that the 10 core targets were mainly involved in PI3K-Akt signaling pathway, inflammatory response and cell cycle regulation. Molecular docking showed that the binding energy of Polyphyllin Ⅰ to 10 core targets was lower than -5 kcal/mol, and the binding was stable. MR analysis confirmed a significant causal association between TLR4 and GC(PIVW=0.043, OR=1.138). Conclusion Polyphyllin Ⅰ may inhibit the activity of PI3K-Akt pathway by targeting TLR4, NF-κB1 and other genes, thus achieving the therapeutic effect on gastric cancer.
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国家自然科学基金项目(82374539)
江苏省中医药科技发展计划重点项目(ZD202214)
江苏省中医药领军人才培养对象项目(SLJ0327)
南京中医药大学胃癌临床专病研究院项目(LCZBYJYZZ2024-001)
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