神经DAMP通过天体细胞RIPK3信号传递加剧神经退行
Nydia P Chang1, Evan M DaPrano1, Wesley R Evans1,2
1Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ 08854, USA.
bioRxiv : the preprint server for biology
|August 7, 2023
概括
死亡的神经元通过RIPK3信号激活星球细胞,恶化神经炎症和多巴胺细胞死亡在帕金森病模型中. 这种神经元-质交叉声会通过炎症途径延续神经退行.
科学领域:
- 神经科学是一个神经科学.
- 神经炎症是一种神经炎症.
- 细胞生物学 细胞生物学
背景情况:
- 星细胞激活在神经退行性疾病中很普遍.
- 死亡神经元对天体细胞活动的影响尚不清楚.
- 在神经元死亡的天体细胞反应中,RIPK3信号传递的作用尚未研究.
研究的目的:
- 研究RIPK3在死亡神经元的星细胞激活中的作用.
- 阐明神经退行症中神经元-质交叉声的机制.
- 确定RIPK3是否调解神经元死亡对神经细胞反应的反应.
主要方法:
- 帕金森病的MPTP小鼠模型.
- 星球细胞的转录形状分析.
- 人类细胞培养系统与死亡的神经元和星球细胞.
主要成果:
- 天体细胞RIPK3激活驱动多巴胺细胞死亡和轴突损伤.
- RIPK3促进神经炎症和运动障碍相关的基因表达.
- 死亡的神经元通过RAGE发出信号来诱导RIPK3依赖的天体细胞激活.
结论:
- 神经元死亡触发了RIPK3依赖的天体细胞激活.
- 这种RIPK3介导的神经元-质交叉声会延续神经退行.
- 准RIPK3可能为神经退行性疾病提供治疗策略.
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