由ROS驱动的结构和功能纤维素原修饰通过阻断巨细胞关节炎中的互白素-6来逆转
Alessandra Bettiol1, Flavia Rita Argento2, Eleonora Fini2
1Department of Experimental and Clinical Medicine, University of Firenze, Largo Brambilla 3, 50134, Firenze, Italy.
Thrombosis research
|August 20, 2023
概括
巨细胞关节炎 (GCA) 患者的氧化还原状态受损,导致纤维素氧化和功能障碍. 托西利祖马布治疗改善了这些氧化和纤维素原变化,表明其在GCA中具有预防心血管疾病的潜力.
科学领域:
- 生物化学 生物化学
- 免疫学 免疫学 免疫学
- 血管生物学 血管生物学
背景情况:
- 巨细胞关节炎 (GCA) 与由头骨和外头骨血管事件引起的显著发病率和死亡率有关.
- 正确的致病基因机制驱动这些血管事件在GCA仍然不清楚,虽然炎症是相关的.
- 对纤维素原的氧化修饰被研究为GCA病原发生的潜在贡献者.
研究的目的:
- 为了研究氧化诱导的结构和功能纤维素原修饰在GCA中的作用.
- 评估抗IL6R疗法托西利祖马布 (tocilizumab) 对抵消GCA中这些氧化机制的影响.
主要方法:
- 一项横截面研究比较了65名GCA患者和65名匹配的对照.
- 分析了白细胞的活性氧物种 (ROS) 生产,氧化还原状态和纤维素原特征.
- 接受托西利祖马布治疗的19名GCA患者接受了治疗前和后的评估.
主要成果:
- GCA患者表现出白细胞ROS产量增加,脂质过氧化增强和抗氧化能力降低.
- 在GCA患者中,纤维素因子显示氧化 (迪铁含量) 和结构变化的增加,损害了聚合,并增加了对溶解的抗性.
- 托西利祖马布治疗显著改善了氧化还原状态和纤维素原的结构和功能.
结论:
- 在GCA中受损的氧化还原状态有助于结构和功能性纤维素原蛋白修饰.
- 托西利祖马布通过改善氧化应激和纤维素素质量,证明了在GCA患者中降低心血管风险的潜力.
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