在自闭症中对激活的单细胞种群的分析以及与严重程度增加和并发性行为相关的关联
Elizabeth Breece1, Rachel J Moreno1, Yasmin Azzam1
1Department of Medical Microbiology and Immunology, University of California, Davis, CA, USA; MIND Institute, University of California, Sacramento, CA, USA.
Brain, behavior, and immunity
|December 24, 2024
概括
自闭症谱系障碍 (ASD) 的免疫功能障碍与改变的单细胞群相关. 增加的CD137+单细胞与ASD儿童更大的行为障碍相关.
科学领域:
- 免疫学 免疫学 免疫学
- 神经科学是一个神经科学.
- 发育儿科 发育儿科
背景情况:
- 免疫功能障碍经常在自闭症谱系障碍 (ASD) 中观察到,影响社会互动,沟通和行为.
- 有证据表明,在ASD中,先天免疫系统的激活增加,包括微质,细胞因子和外围免疫细胞,如单细胞.
- 单细胞对先天免疫,细胞和免疫防御至关重要,但它们在ASD中的特定作用和频率尚不清楚.
研究的目的:
- 调查与典型发育 (TD) 对照相比,ASD幼儿中不同循环单细胞群的频率.
- 评估单细胞激活标志物与ASD儿童行为障碍之间的关联.
主要方法:
- 流细胞计用于分析77名患有自闭症的儿童和49名TD对照 (4至4岁) 的循环单细胞群.
- 量化了表达激活标志物CD137 (4-1BB) 的单细胞的频率.
- 研究了单细胞子集与行为结果之间的关联.
主要成果:
- 患有自闭症儿童的单细胞表达激活标志物CD137 (4-1BB) 的频率显著增加.
- 较高的CD137+单细胞频率与ASD儿童的较大行为障碍有关.
- 非经典单细胞 (CD14+CD16+) 与ASD和TD组的行为恶化有关,而经典单细胞与更好的结果相关.
结论:
- 这些发现意味着改变的单细胞形状和激活状态在ASD的病理生理学中.
- 单细胞功能障碍可能导致自闭症儿童观察到的免疫失调.
- 对单细胞作用的进一步研究可能会揭示ASD的新型治疗点.
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