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尼古丁胺胺单核酸通过增强微质中的GPX4介导的铁亡防御来减轻神经炎症

Ruiqiong Su¹, Xiaoyue Pan¹, Qiuyuan Chen¹

¹Ningxia Key Laboratory of Cerebrocranial Diseases, School of Basic Medical Science, Ningxia Medical University, Yinchuan 750004, China.

|August 31, 2024

概括

尼古丁胺胺单核酸 (NMN) 通过增强谷氨的产生和GPX4活性来保护微质细胞免受铁亡并减少神经炎症. 这种双重作用为神经系统疾病提供了一个有前途的治疗策略.

科学领域:

神经科学是一个神经科学.
细胞生物学细胞生物学
生物化学生物化学

背景情况:

神经炎症,特别是涉及微质细胞,是许多神经疾病中神经元死亡的关键驱动因素.
铁灭,一种受调节的细胞死亡形式,越来越多地与神经元损伤相关的条件有关.
尼古丁胺胺单核酸 (NMN) 已显示出抑制神经炎症和铁亡的潜力,但其精确的机制需要进一步阐明.

研究的目的:

研究NMN对神经炎症和微细胞对铁亡的敏感性的影响.
阐明NMN影响这些过程的潜在分子机制.

主要方法:

使用CCK8,流细胞计,ELISA和RT-PCR在脂聚糖 (LPS) 刺激的微质中评估了铁亡标志物.
评估NMN对微质中LPS诱导的铁亡的影响,通过流动细胞计,西斑和免疫光.
利用RNA测序揭示NMN在微质铁亡中的机制,并评估NMN对小鼠大脑中LPS诱导的神经炎症的体内影响.

主要成果:

NMN治疗显著改善了微质活力,并挽救了LPS诱导的铁亡.
NMN增强了谷氨 (GSH) 生产和GPX4依赖的抗脂质过氧化能力,从而抑制了促炎性细胞因子的产生.
在体内给予NMN改善了小鼠大脑中LPS诱导的铁和神经炎症.

结论:

通过抑制微质中的铁和神经炎症,NMN显示出双重治疗效果.
通过GSH招募,NMN增强了微质中的GPX4介导的铁亡防御,从而抑制神经炎症.
对于与神经炎症相关的疾病,NMN是一个有前途的治疗策略,因此需要考虑其抗费洛和抗炎性质.

关键词:

(1S,3R) -RSL3 -RSL3是什么意思铁化是铁化的一种.铁素-1-1是一种铁素.脂聚糖类糖化物脂聚糖类糖化物微质细胞中的微质细胞神经炎症是一种神经炎症.尼古丁胺胺单核酸是什么

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