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经过实验性脑下关节下出血后,微质通过C3/C3aR通路加剧白质损伤

Lei Yang¹, Jinpeng Wu¹, Fan Zhang²

¹Department of Neurosurgery, The Affiliated Hospital, Southwest Medical University, Luzhou, China; Laboratory of Neurological Diseases and Brain Function, The Affiliated Hospital, Southwest Medical University, Luzhou, China.

Experimental neurology

|June 12, 2024

概括

抑制C3a受体 (C3aR) 减少神经炎症和白质损伤后脑下关节下出血 (SAH). 这种方法也改善了认知缺陷,突出了C3aR作为SAH恢复的治疗目标.

科学领域:

神经科学是一个神经科学.
免疫学免疫学免疫学
病理生理学病理生理学

背景情况:

质细胞激活驱动神经炎症和白质损伤 (WMI) 在下关节出血 (SAH).
补剂C3a受体 (C3aR) 影响炎症,神经发育和神经退行,但其在SAH诱导的WMI中的作用尚不清楚.

研究的目的:

研究C3-C3aR途径在SAH后的微质激活和WMI中的作用.
评估C3aR抑制和C3a治疗在SAH小鼠模型中的治疗潜力.

主要方法:

在小鼠中诱导了下关节出血 (SAH);氧血球蛋白 (oxy-Hb) 在实验室中使用.
免疫组织化学,转录基因测序 (RNA-Seq) 和分子生物技术评估了C3-C3aR通路激活,微质极化和WMI.
使用C3aR抑制和内C3a的使用.

主要成果:

SAH导致补充C3和C3aR表达的增加,与微质激活和WMI相关.
抑制C3aR可以减少微质激活,神经炎症,WMI和认知缺陷.
抑制C3aR降低了炎症通路的调节,并通过减少Pidd1和Perk表达来减轻细胞损伤,这表明它在ER压力中发挥了作用.
内鼻C3a给药降低了天体细胞的反应性,改善了认知缺陷.

结论:

C3-C3aR轴加剧SAH诱导的WMI,可能通过ER压力和炎症酶激活.
抑制C3aR是一种有前途的治疗策略,可以缓解SAH后的WMI和认知障碍.
在SAH后,C3a治疗显示出促进白质修复和功能恢复的潜力.

关键词:

C3 C3 C3 C3 C3 C3 C3 C3 C3 C3 C3 C3 C3 C3 C3 C3 C3 C3 C3 C3 C3 压力ERER压力ERER压力在炎症中,一些细胞会发炎.甲状腺下下垂体出血白质损伤的伤害是白质的伤害.

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