介质素-6驱动COVID-19和细菌性败血症中的内皮葡萄糖体损伤
Carolin Christina Drost1, Alexandros Rovas1, Irina Osiaevi1,2
1Department of Medicine D, Division of General Internal and Emergency Medicine, Nephrology, and Rheumatology, University Hospital Münster, Albert-Schweitzer-Campus 1, 48149, Münster, Germany.
Angiogenesis
|April 10, 2024
概括
介质素-6 (IL-6) 驱动COVID-19和败血症中的内皮糖 (eGC) 损伤,导致血管过性. 阻断IL-6通路可以防止这种损伤,并改善患者的治疗结果.
科学领域:
- 血管生物学 血管生物学
- 免疫学 免疫学 免疫学
- 关键护理医学 关键护理医学
背景情况:
- 内皮葡萄糖 (eGC) 损伤有助于血管过性和系统性炎症中的器官损伤.
- 对于eGC损伤的特定信号通路尚不清楚.
研究的目的:
- 在COVID-19和细菌性败血症患者中调查eGC损伤的途径.
- 探索互白素-6 (IL-6) 在eGC损伤中的作用.
主要方法:
- 使用了语言下视频显微镜,血蛋白质组学和活细胞成像.
- 分析包括COVID-19 (n=22) 和细菌性败血症 (n=43) 的患者,以及健康对照组 (n=10).
- 在体外实验中使用了用tocilizumab或tofacitinib阻断IL-6.
主要成果:
- 在败血症和COVID-19患者中,IL-6与eGC维度和循环eGC生物标志物有很强的相关性.
- 在体外,IL-6降低了eGC高度和覆盖范围,这种效应被IL-6阻塞减轻.
- 外部COVID-19队列中的eGC签名与IL-6相关,并预测死亡率/输入管.
结论:
- IL-6似乎是COVID-19和细菌性败血症中eGC损伤的重要驱动因素.
- 研究结果提供了关于系统性炎症期间血管功能障碍机制的见解.
- 需要进一步的体内研究来证实这些发现并探索治疗潜力.
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