微质中的早期葡萄糖分解爆发调节了神经炎症下的寡腺细胞中的线粒体功能障碍
Hamid Suhail1, Mohammad Nematullah1, Faraz Rashid1
1Department of Neurology, Henry Ford Health System, Detroit, MI 48202, USA.
iScience
|October 16, 2023
概括
激活的微质细胞代谢会在神经炎症期间破坏寡类细胞的能量产生和髓合成. 准微质信号通路可能会恢复寡头细胞的线粒体功能,并促进复髓化.
科学领域:
- 神经科学是一个神经科学.
- 细胞的新陈代谢
- 神经炎症是一种神经炎症.
背景情况:
- 氧基细胞的功能对于髓维护和修复至关重要,特别是在神经炎症性疾病期间.
- 微质细胞环境在神经炎症期间对寡类细胞代谢和活性的影响仍然不太清楚.
研究的目的:
- 为了研究激活的微质能量代谢如何影响小腺细胞线粒体呼吸和活动.
- 为了确定神经炎症期间参与微质-寡细胞相互作用的特定代谢和信号通路.
主要方法:
- 用过的老鼠大脑质细胞培养物用脂多糖/干扰素玛治疗.
- 采用SCENITH (单细胞细胞外流量分析仪) 来评估微质和寡细胞中的代谢失调.
- 分析了PDPK1和蛋白激酶B/AKT信号在微质糖解中的作用.
- 研究了微质衍生氧化 (NO) 和伊塔科纳酸对寡头细胞线粒体呼吸的作用.
主要成果:
- 激活的微质细胞表现出增加的葡萄糖分解和减少的线粒体呼吸,损害了寡头质细胞髓蛋白合成.
- 在微质受条件介质中培养的寡类细胞显示呼吸受抑制,髓表达减少.
- 在内毒性病和实验性自身免疫性脑膜炎模型中,SCENITH在微质细胞和O4阳性寡类细胞中发现了代谢障碍.
- 发现微细胞产生的NO和伊塔科纳酸可抑制寡基细胞的线粒体呼吸.
结论:
- 激活的微质新陈代谢显著影响寡二细胞的线粒体功能和髓合成.
- 微质中的一个特定的信号通路,涉及PDPK1和AKT,调解糖分分解爆发和随后的代谢交叉.
- 微质衍生的NO和伊塔科纳酸是小基细胞线粒体功能障碍的关键媒介.
- 向微质代谢通路为恢复寡类细胞功能和促进神经炎症条件下的复髓化提供了潜在的治疗策略.
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