天然产物研究与开发 ›› 2026, Vol. 38 ›› Issue (2): 229-239.doi: 10.16333/j.1001-6880.2026.2.001 cstr: 32307.14.1001-6880.2026.2.001

• 研究论文 •    下一篇

土茯苓调控AMPK/PGC-1α/PPARγ/ABCG2通路治疗湿热型高尿酸血症的作用机制

欧丽娜*,孟玲飞,任玉霞,李亚楠,杨阳,白冰涛,黎寒香,杜景霞*   

  1. 河南科技大学基础医学与法医学院,洛阳 471000
  • 出版日期:2026-02-26 发布日期:2026-02-25
  • 基金资助:
    国家重点研发计划(2018YFC1706800);河南省科技攻关计划(222103810051);河南省大学生创新创业训练计划(202510464089)

Mechanism of Smilacis Glabrae Rhizoma in treating hyperuricemia due to dampness-heat through the AMPK/PGC-1α/PPARγ/ABCG2 pathway

OU Li-na*,MENG Ling-fei,REN Yu-xia,LI Ya-nan,YANG Yang,BAI Bing-tao,LI Han-xiang,DU Jing-xia*   

  1. College of Basic Medicine and Forensic Medicine,Henan University of Science and Technology,Luoyang 471000,China
  • Online:2026-02-26 Published:2026-02-25

摘要:

运用网络药理学、分子对接技术和实验验证研究土茯苓(Smilacis Glabrae Rhizoma,SGR)治疗湿热型高尿酸血症(hyperuricemia,HUA)的作用机制。通过网络药理学方法筛选出SGR治疗HUA的潜在活性成分、作用靶点与信号通路。运用分子对接技术验证关键化合物和核心靶点的结合能力。然后建立湿热型HUA大鼠模型进行实验验证。网络药理学分析筛选出SGR治疗HUA的12个潜在活性成分,及白介素-6(interleukin-6,IL-6)、肿瘤坏死因子(tumor necrosis factor,TNF)、过氧化物酶体增殖物激活受体γ(peroxisome proliferator-activated receptor gamma,PPARγ)、B淋巴细胞瘤-2(B-cell lymphoma-2,BCL-2)、ATP结合盒亚家族G成员2(ATP binding cassette subfamily G member 2,ABCG2)、过氧化物酶体增殖物激活受体α(peroxisome proliferator activated receptor alpha,PPARα)等核心作用靶点,涉及的主要作用通路为脂质与动脉粥样硬化、抗叶酸性、腺苷酸活化蛋白激酶(adenosine monophosphate-activated protein kinase,AMPK)信号通路等。分子对接结果显示,核心成分与关键靶点有较好的亲和力。动物实验表明,SGR可降低模型大鼠血尿酸以及血脂水平,上调模型大鼠肾脏ABCG2、有机阴离子转运蛋白1(organic anion transporter 1‌,OAT1)的mRNA表达水平,下调尿酸盐转运蛋白1(uric acid transporter 1,URAT1)的mRNA表达水平,同时增加模型大鼠肾脏磷酸化AMPK(p-AMPK)、过氧化物酶体增殖物激活受体γ共激活因子1α‌(peroxisome proliferator-activated receptor gamma coactivator 1-alpha,PGC-1α)、PPARγ、ABCG2的蛋白表达。综上所述,SGR有加速尿酸排泄,减少尿酸重吸收,降低血尿酸水平的作用,其作用机制与增加AMPK磷酸化水平,激活PGC-1α,增强PPARγ的表达,进一步活化其下游靶点ABCG2,加速尿酸排泄有关。

关键词: 土茯苓, 湿热型高尿酸血症, 网络药理学, 分子对接, ABCG2

Abstract:

This study investigated the mechanism of Smilacis Glabrae Rhizoma (SGR) against hyperuricemia due to dampness-heat through integrated network pharmacology, molecular docking and in vivo experiments. Potential active components, therapeutic targets, and signaling pathways of SGR against HUA were identified through network pharmacology. The binding affinities between the key compounds and core targets were validated using molecular docking. Subsequent an HUA rat model with dampness-heat syndrome was established for in vivo experimental verification. Network pharmacology analysis revealed 12 potential active components of SGR for HUA treatment, with key targets including interleukin-6 (IL-6), tumor necrosis factor (TNF), peroxisome proliferator-activated receptor gamma (PPARγ), B-cell lymphoma-2 (BCL-2), ATP binding cassette subfamily G member 2 (ABCG2), and peroxisome proliferator activated receptor alpha (PPARα). Key pathways involved included lipid metabolism, atherosclerosis, folate metabolism, adenosine monophosphate-activated protein kinase (AMPK) signaling. Molecular docking demonstrated strong binding affinity between core compounds and critical targets. Animal experiments showed that SGR significantly reduced Serum uric acid (UA) and lipid levels, upregulated renal ABCG2 and organic anion transporter 1‌(OAT1)mRNA expression, and downregulated uric acid transporter 1(URAT1 mRNA expression in model rats. Additionally, it enhanced renal expression of phosphorylated AMPK, peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PGC-1α), PPARγ, and ABCG2.These findings suggest that SGR mitigates hyperuricemia by promoting uric acid excretion and reducing its reabsorption. The underlying mechanism involves increasing AMPK phosphorylation, activating PGC-1α, upregulating PPARγ expression, and subsequently enhancing the downstream target ABCG2 to accelerate uric acid elimination.

Key words: Smilacis Glabrae Rhizoma, hyperuricemia due to dampness-heat, network pharmacology, molecular docking, ABCG2

中图分类号:  R285.5