格拉布里丁通过激活Nrf2/HO-1通路来减弱LTA诱导的膜巨细胞迁移
Chih-Hsuan Hsia1, Chun-Ming Yang1, Chao-Chien Chang1
1Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei 110, Taiwan, R.O.C.
Molecular medicine reports
|November 21, 2025
概括
格拉布里丁 (GBD) 通过激活Nrf2/HO-1通路来抑制细菌成分诱导的氧化应激和巨细胞迁移. 这表明GBD GBD.
科学领域:
- 生物化学 生物化学
- 免疫学 免疫学 免疫学
- 药理学 药理学是指药理学的学科.
背景情况:
- 氧化应激和巨细胞迁移是慢性炎症和组织损伤的关键驱动因素.
- 核因子红色素2相关因子2 (Nrf2) 途径对于氧化还原平衡和免疫细胞调节至关重要.
- 来自格拉姆阳性细菌的脂肪酸 (LTA) 触发了巨细胞的激活,反应性氧物种 (ROS) 的过度生产和异常迁移.
研究的目的:
- 为了研究甘黄类固醇格拉布里丁 (GBD) 对LTA诱导的氧化应激和膜巨细胞迁移的影响.
- 阐明Nrf2/heme oxygenase-1 (HO-1) 信号通路在GBD影响中的作用.
主要方法:
- 使用光探针 (2',7'‐二二二甲酸和二乙) 测量细胞内ROS.
- 通过免疫光显微镜评估Nrf2核转位.
- 西方涂抹测量Nrf2和HO-1表达的数量.
- 宏细胞迁移的功能测定,有或没有Nrf2抑制 (ML385).
主要成果:
- GBD预治疗显著降低了LTA诱导的细胞内ROS水平.
- 治疗GBD增加了Nrf2的核转移,并增加了HO-1表达.
- Nrf2抑制剂ML385减弱了GBD对Nrf2激活,HO-1表达和巨细胞迁移的影响.
- GBD有效地抑制了LTA诱导的巨细胞迁移.
结论:
- 格拉布里丁减轻LTA诱导的氧化应激和巨细胞迁移.
- Nrf2/HO-1信号通路对GBD的抑制作用具有关键作用.
- GBD显示出作为炎症性肺部疾病治疗剂的潜力.
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