饮酒障碍的多基因风险影响了人类微质细胞模型中对乙醇暴露的细胞反应
Xindi Li1, Jiayi Liu2,3, Andrew J Boreland1
1Department of Neuroscience and Cell Biology and The Child Health Institute of New Jersey, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ 08901, USA.
Science advances
|November 8, 2024
概括
对酒精使用障碍 (AUD) 的多基因风险评分 (PRS) 与微质变化有关. 高PRS微细胞对乙醇的反应发生了变化,影响神经元连接,并表明在AUD发育中发挥了作用.
科学领域:
- 神经科学是一个神经科学.
- 遗传学 是一个遗传学.
- 免疫学 免疫学 免疫学
背景情况:
- 多基因风险评分 (PRS) 识别了对酒精使用障碍 (AUD) 的遗传易感性.
- 涉及微质的神经免疫相互作用与AUD病理生理学有关.
- 在AUD中PRS的分子基础在很大程度上仍未被探索.
研究的目的:
- 为了研究AUD PRS和人类微质中的乙醇暴露之间的相互作用.
- 基于AUD PRS.的差异性微质反应的特征.
- 探索这些相互作用对神经元功能的影响.
主要方法:
- 利用来自患有高或低AUD PRS.的个体的诱导多能干细胞 (iPSC).
- 暴露于人类微质中的乙醇,并评估了形态和分子变化.
- 进行了转录基因分析,并与诱导的神经元共同培养了微质.
主要成果:
- 乙醇暴露改变了高PRS和低PRS细胞之间的微质形态和CD68表达的差异.
- 转录组分析揭示了改变的MHCII复合体和与细胞形成相关的基因表达.
- 高PRS的微质体表现出增强的细胞分裂和增加的CLEC7A表达,并减少了协同培养中的突触数量.
结论:
- 在分子和功能层面上,AUD PRS会影响微质对乙醇的反应.
- 在高PRS微质中增强的细胞和改变的基因表达可能会导致AUD病理生理学.
- 这些发现表明,在AUD发育中,潜在的机制涉及微质突触修剪.
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