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人类神经退行性疾病中刺触发的中枢神经系统炎症

Alex S Ferecskó^1,2, Miranda J Smallwood², Adrian Moore¹

¹UCB Pharma, Slough SL1 3WE, UK.

|May 27, 2023

概括

干扰素基因刺激器 (STING) 途径在神经退行性疾病中被激活,可能是由线粒体应激和DNA泄漏引起的,这表明它是神经炎症的治疗点.

科学领域:

神经科学是一个神经科学.
免疫学免疫学免疫学
细胞生物学细胞生物学

背景情况:

神经炎症与一些神经退行性疾病有关,通常由病毒核酸引发,导致I型干扰素.
由DNA激活的cGAS-STING通路在免疫反应中起作用,但其在人类神经退行性疾病中的激活尚未研究.

研究的目的:

研究人类神经退行性疾病中cGAS-STING通路的激活.
探索线粒体压力和DNA泄漏在激活STING通路中的作用.

主要方法:

从多发性硬化症,阿尔茨海默氏症,帕金森氏症,ALS和对照患者的死后中枢神经系统组织上的免疫组织化学.
在体外研究中,使用用棕酸 (一种STING激动剂) 刺激的人类大脑内皮细胞来评估线粒体应激和炎症标志物.

主要成果:

在神经退行性疾病中的内皮细胞和神经元中发现了升高的STING蛋白水平,特别是与蛋白质聚合物相关.
棕酸刺激诱导了线粒体应激,细胞质DNA泄漏,并在内皮细胞中增加了TBK-1,pIRF3,cGAS和ICAM-1的水平.

结论:

在多种神经退行性疾病中,cGAS-STING通路在神经和内皮细胞中被激活.
线粒体应激和随后的DNA泄漏可能会激活STING通路,导致神经炎症并提供潜在的治疗点.

关键词:

cGAS 是一个气体.大脑内皮细胞的大脑内皮细胞皮层神经元,皮层神经元.神经炎症是一种神经炎症.棕酸是一种棕酸.

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