生物技术进展 ›› 2025, Vol. 15 ›› Issue (4): 720-725.DOI: 10.19586/j.2095-2341.2025.0043

• 研究论文 • 上一篇    

松果菊苷通过Nrf2/HO-1通路抑制IL-1β诱导的软骨细胞铁死亡

梁传财1(), 邱波2()   

  1. 1.武汉大学人民医院急诊科,武汉 430060
    2.武汉大学人民医院关节外科,武汉 430060
  • 收稿日期:2025-03-27 接受日期:2025-05-07 出版日期:2025-07-25 发布日期:2025-09-08
  • 通讯作者: 邱波
  • 作者简介:梁传财 E-mail: 2020283020228@whu.edu.cn
  • 基金资助:
    国家自然科学基金项目(81071494)

Echinoside Inhibits IL-1β-induced Chondrocytes Iron Death Through Nrf2/HO-1 Pathway

Chuancai LIANG1(), Bo QIU2()   

  1. 1.Department of Emergency,Wuhan University Renmin Hospital,Wuhan 430060,China
    2.Department of Orthopedics,Wuhan University Renmin Hospital,Wuhan 430060,China
  • Received:2025-03-27 Accepted:2025-05-07 Online:2025-07-25 Published:2025-09-08
  • Contact: Bo QIU

摘要:

探讨了松果菊苷(echinacoside,ECH)对白细胞介素-1β(interleukin-1β, IL-1β)诱导的软骨细胞铁死亡的影响及其作用机制。提取Wistar大鼠软骨细胞,实验分为对照组、IL-1β组、ECH+IL-1β组、ECH+IL-1β+Brusatol(Nrf2抑制剂)组和ECH+IL-1β+ZnPP(HO-1抑制剂)5组。采用qPCR和Western Blot技术检测核因子E2相关因子2(nuclear factor-erythroid 2-related factor-2,Nrf2)、血红素氧合酶-1(heme oxygenase-1,HO-1)、酯酰辅酶A合成酶长链家族成员4(acyl-CoA synthetase long-chain familymember4,ACSL4)和谷胱甘肽过氧化酶4(glutathione peroxidase 4,GPX4)mRNA和蛋白表达量。结果显示,与对照组相比,IL-1β组中Nrf2、HO-1、GPX4的mRNA和蛋白表达量明显降低,ACSL4的mRNA和蛋白表达量明显升高。ECH组(ECH+IL-1β)中Nrf2、HO-1、GPX4的mRNA和蛋白表达量明显升高,ACSL4 的mRNA和蛋白表达量明显降低。在ECH组加入Nrf2抑制剂Brusatol或HO-1抑制剂ZnPP后,软骨细胞Nrf2、HO-1和GPX4的mRNA和蛋白表达量明显下降,ACSL4的mRNA和蛋白表达量明显升高。Fe2+检测试剂盒结果显示:与对照组相比,IL-1β组软骨细胞Fe2+含量明显升高;与IL-1β组相比,ECH组(ECH+IL-1β)软骨细胞Fe2+的含量明显降低,而在加入Nrf2抑制剂Brusatol或HO-1抑制剂ZnPP后软骨细胞Fe2+的含量明显升高。结果表明,松果菊苷通过Nrf2/HO-1通路可明显改善IL-1β诱导的软骨细胞铁死亡。

关键词: 骨关节炎, 铁死亡, 松果菊苷, 核因子E2相关因子2, 血红素氧合酶-1

Abstract:

To investigate the protective mechanism of echinacoside (ECH) in interleukin-1β (IL-1β)-induced chondrocyte iron death. Wistar mammary rat chondrocytes were extracted, and the experiment was divided into 5 groups: control group, IL-1β group, ECH+IL-1β group, ECH+IL-1β+Brusatol (Nrf2 inhibitor) group and ECH+IL-1β+ZnPP (HO-1 inhibitor) group. Quantitative PCR (qPCR) and Western Blot were used to detect mRNA and protein expression nuclear factor E2-related factor 2 (Nrf2), heme oxygenase-1 (HO-1), esteroyl coenzyme A synthase long-chain family member 4 (ACSL4) and glutathione peroxidase 4 (GPX4), respectively. The results showed that the mRNA and protein expression of Nrf2, HO-1 and GPX4 were significantly reduced in the IL-1β group, and the mRNA and protein expression of ACSL4 were significantly enhanced compared with the control group. The mRNA and protein expression of cartilage Nrf2, HO-1 and GPX4 were significantly decreased and that of ACSL4 was significantly enhanced by the addition of the Nrf2 inhibitor Brusatol or the HO-1 inhibitor ZnPP in the ECH group. The results of Fe2+ Assay Kit showed that the chondrocyte Fe2+ content was significantly higher in the IL-1β group compared to the control group. The chondrocyte Fe2+ content was significantly lower in the ECH group (ECH+IL-1β) compared to the IL-1β group, while it was significantly higher in the ECH group after the addition of the Nrf2 inhibitor Brusatol or the HO-1 inhibitor ZnPP. The results suggest that echinoside can significantly improve IL-1β-induced chondrocyte iron death through Nrf2/HO-1 pathway.

Key words: osteoarthritis, iron death, echinoside, nuclear factor E2-related factor 2, heme oxygenase-1

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