天然产物研究与开发 ›› 2026, Vol. 38 ›› Issue (7): 1494-1508.doi: 10.16333/j.1001-6880.2026.7.012 cstr: 32307.14.1001-6880.2026.7.012

• 开发研究 • 上一篇    下一篇

人参-丹参通过TLR4/NF-κB通路抑制炎症减轻阿霉素诱导的心肌损伤

王  娟1,张  琳1,王斯琦1,刘嘉龙1,漆雅芳1,王紫荣1,丁新华4,刘东玲1,2,3*   

  1. 1 甘肃中医药大学药学院;2甘肃中医药大学 陇药产业创新研究院;3西北中藏药省部共建协同创新中心;4甘肃省人民医院,兰州 730000
  • 出版日期:2026-07-24 发布日期:2026-07-23
  • 基金资助:
    2023年度甘肃中医药大学成果转化培育项目(2023CGZH-10);西部青年学者项目(23JR6KA028);甘肃省2023年度第三批省级科技计划-杰出青年基金(23JRRA1203);甘肃省人民医院院内科研基金(24GSSYE-2)

Ginseng Radix et Rhizoma-Salviae Miltiorrhizae Radix et Rhizoma inhibits inflammatory response against doxorubicin-induced myocardial injury through the TLR4/NF-κB pathway

WANG Juan1,ZHANG Lin1,WANG Si-qi1,LIU Jia-long1,QI Ya-fang1,WANG Zi-rong1,DING Xin-hua4,LIU Dong-ling1,2,3*   

  1. 1 College of Pharmacy,Gansu University of Traditional Chinese Medicine;2 Gansu University of Traditional Chinese Medicine,Gansu Pharmaceutical Industry Innovation Research Institute;3Northwest Collaborative Innovation Center for Traditional Chinese Medicine;4Gansu Provincial People′s Hospital,Lanzhou 730000,China
  • Online:2026-07-24 Published:2026-07-23

摘要:

探讨人参-丹参(Ginseng Radix et Rhizoma-Salviae Miltiorrhizae Radix et Rhizoma,GR-SMR)减轻阿霉素(doxorubicin,DOX)诱导心脏毒性机制。首先利用SwissTargetPrediction数据库检索有效成分靶点,筛选DOX心脏毒性(DOX-induced cardiomyopathy,DIC)靶点,采用微生信平台、STRING数据库等查获取GR-SMR治疗DIC的潜在靶点,并行GO和KEGG富集分析。最后,采用2 μmol/L DOX处理H9c2细胞,建立心肌损伤模型进行验证,取对数生长期的细胞分为空白组、DOX组、人参-丹参低剂量组(0.5 mg/mL)、人参-丹参中剂量组(1 mg/mL)、人参-丹参高剂量组(2 mg/mL),通过MTT法和乳酸脱氢酶(lactate dehydrogenase,LDH)试剂盒检测细胞活力,流式细胞仪检测细胞活性氧(reactive oxygen species,ROS)产生,ELISA法检测肿瘤坏死因子-α(tumor necrosis factor-α,TNF-α)、白介素-1β(interleukin-1β,IL-1β)、IL-6,最后通过RT-qPCR以及Western blot检测Toll样受体4(Toll-like receptor 4,TLR4)、核因子κB(nuclear factor kappa B,NF-κB)基因和蛋白表达情况。GR-SMR的150个活性成分用于靶点预测,去除重复值后获得了1 385个靶点,与DIC交集靶点有578个,KEGG通路分析发现信号通路主要与TNF信号通路、IL-17信号通路、NF-κB信号通路及细胞凋亡等有关,分子对接结果进一步验证GR-SMR有效成分与TLR4、NF-κB具有较高的结合活性。实验结果显示GR-SMR对DIC明显缓解,细胞活力增加(P < 0.01或P < 0.001);LDH及ROS水平降低(P < 0.01或P < 0.001);H9c2细胞相关炎症因子明显降低(P < 0.05或P < 0.001),炎症反应减轻。且GR-SMR显著降低NF-κB mRNA以及TLR4、p-NF-κB蛋白表达(P < 0.01或P < 0.001),线粒体ROS清除剂(MitoTEMPO)显著降低相关炎症因子及p-NF-κB蛋白表达(P < 0.01或P < 0.001),说明GR-SMR可以通过抑制线粒体ROS缓解DIC。因此,GR-SMR可通过TLR4/NF-κB通路抑制炎症反应,减轻DOX心脏毒性。

关键词: 人参-丹参, 阿霉素诱导的心脏毒性, TLR4/NF-κB, 炎症反应, H9c2细胞

Abstract:

This study investigated the mechanism by which Ginseng Radix et Rhizoma-Salviae Miltiorrhizae Radix et Rhizoma (GR-SMR) alleviates doxorubicin (DOX)-induced myocardial injury. Bioactive compound targets were identified using SwissTargetPrediction database, and DOX-induced cardiomyopathy (DIC) targets were screened, bioinformatics platforms and STRING databases analyzed potential GR-SMR targets for DIC treatment, with parallel GO and KEGG enrichment analyses. Finally, H9c2 cells were treated with 2 μmol/L DOX to establish a myocardial injury model for validation, logarithmic growth phase cells into five groups: control group, DOX group, GR-SMR low-dose group (0.5 mg/mL), GR-SMR medium-dose group (1 mg/mL), and GR-SMR high-dose (2 mg/mL), cell viability was assessed using MTT and lactate dehydrogenase (LDH) assays, reactive oxygen species (ROS) production was quantified by flow cytometry, tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β) and IL-6 levels were measured by ELISA. Toll-like receptor 4 (TLR4) and nuclear factor kappa B (NF-κB) mRNA and protein expression were assessed by RT-qPCR and Western blot. Target prediction was performed for 150 active ingredients from GR-SMR, yielding 1 385 targets after duplicate removal, with 578 overlapping DIC targets. KEGG analysis revealed enriched TNF, IL-17, NF-κB and apoptosis pathways. Molecular docking confirmed strong binding affinity between GR-SMR active compounds and TLR4/NF-κB. Experimentally, GR-SMR significantly attenuated DIC and increased cell viability (P < 0.01 or P < 0.001), reduced LDH and ROS (P < 0.01 or P < 0.001), decreased inflammatory factors (P < 0.05 or P < 0.001), and downregulated NF-κB mRNA, TLR4, and p-NF-κB protein expression (P < 0.01 or P < 0.001). Mitochondrial ROS scavenger MitoTEMPO similarly reduced inflammatory factors and p-NF-κB expression (P < 0.01 or P < 0.001), indicating GR-SMR protects against DIC by inhibiting mitochondrial ROS. Therefore, GR-SMR inhibits inflammation and attenuates DOX-induced cardiotoxicity via the TLR4/NF-κB pathway.

Key words: Ginseng Radix et Rhizoma-Salviae Miltiorrhizae Radix et Rhizoma, doxorubicin-induced cardiomyopathy, TLR4/NF-κB; inflammatory response, H9c2 cells

中图分类号:  R965