跨物种多组学分析显示,在缺血性中风中,肌驱动的内皮氧化应激会导致缺血性中风
Ziqi Cheng1, Hua Zhu1, Shi Feng1
1Department of Neurosurgery, Renmin Hospital of Wuhan University, 430060 Wuhan, Hubei, China.
Frontiers in bioscience (Landmark edition)
|April 30, 2025
概括
在缺血性中风中,激活的髓状细胞透到大脑中,通过外周中心免疫轴加剧炎症和氧化应激. 准骨髓-内皮质交叉和内皮质氧化损伤可能会减少二次脑损伤.
科学领域:
- 神经科学是一个神经科学.
- 免疫学 免疫学 免疫学
- 血管生物学 血管生物学
背景情况:
- 缺血性中风是全球死亡和残疾的主要原因.
- 在中风中,外周和中心免疫反应之间的相互作用尚未完全理解.
- 周围的活化髓状细胞可能进入缺血大脑,通过炎症和代谢途径破坏血脑屏障 (BBB).
研究的目的:
- 研究缺血性中风中外周和中心免疫反应之间的相互作用.
- 阐明骨髓细胞透和内皮细胞反应在中风病理生理学中的作用.
- 为了确定潜在的治疗目标,以减轻二次脑损伤.
主要方法:
- 从人类和小鼠中风模型中集成的多omics数据 (批量RNA-seq,scRNA-seq,空间转录组学).
- 使用流细胞计和体外氧气-葡萄糖剥夺/再输液 (OGD/R) 实验.
- 分析了依赖时间的转录变化,细胞类型特异性反应,骨髓透和内皮代谢重编程.
主要成果:
- 在中风后的人类和小鼠中观察到保存的髓状细胞中心基因特征.
- 周围血液中中性粒细胞和单细胞的显著扩张,透到缺血性大脑中.
- 内皮细胞显示了代谢重编程,表明氧化应激和抗氧化能力受损.
- 在体外实验证实了内皮氧化损伤和BBB破坏.
结论:
- 一个协调的外周-中心免疫轴有助于炎症和氧化应激在缺血性中风.
- 骨髓细胞招募和内皮细胞代谢脆弱性是二次脑损伤的关键驱动因素.
- 准内皮质氧化损伤和骨髓-内皮质交叉显示了治疗潜力.
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