慢性饮酒会导致表型和功能变化,这与 rhesus macaque 模型中的外周血液单核细胞衍生微质中的超炎症状态一致
Hami Hemati1, Madison B Blanton2, Heather E True2
1Microbiology, Immunology and Molecular Genetics, College of Medicine, University of Kentucky, Lexington, KY, United States.
Brain, behavior, and immunity
|July 28, 2025
概括
慢性饮酒会改变免疫细胞,产生类似微质细胞的细胞,并加剧炎症. 这项研究优化了一种研究酒精酒精的方法.
科学领域:
- 神经科学是一个神经科学.
- 免疫学 免疫学 免疫学
- 毒理学 毒理学 毒理学
背景情况:
- 酒精诱导的微质失调有助于神经炎症和认知衰退.
- 纵向研究微质是具有挑战性的,因为直接采样存在困难.
- 慢性酒精消费 (CAC) 通过神经炎症途径影响大脑健康.
研究的目的:
- 优化一种用于将 rhesus macaque (RM) 外周血液单核细胞 (PBMCs) 分化为诱导微状细胞 (RM-iMGLs) 的体外方法.
- 调查CAC对RM-iMGLs功能和特征的影响.
- 建立一个转化模型来研究酒精对微质活动的影响.
主要方法:
- 区分RM PBMCs到RM-iMGLs的区分.
- 转录造型分析以将RM-iMGL与单细胞原生细胞和初级微质细胞进行比较.
- 从对照和CAC受试者对RM-iMGL的形态,表型和功能评估.
- 脂聚糖 (LPS) 刺激以评估免疫反应能力.
主要成果:
- RM-iMGLs表现出类似于初级微质细胞的转录特征,与祖先不同.
- 来自CAC的RM-iMGL较大,表现出双极性状的形态,并增加了基线的细胞活性.
- 经过LPS刺激,CAC衍生的RM-iMGLs中发现了超炎症的CD86+亚群和增强的免疫反应.
- CAC重塑了RM-iMGLs的功能和转录概况.
结论:
- 在PBMCs的体外分化提供了一个最小侵入性的模型来研究CAC对微质的影响.
- CAC显著改变了微质功能和炎症概况,这表明它在与酒精有关的神经炎症中发挥了作用.
- 进一步的单细胞水平的研究是有必要的,以充分阐明CAC诱导的微质变化.
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