NATURE:阿尔茨海默病的单细胞转录组学分析

2019-05-04 海北 MedSci原创

阿尔茨海默病(AD)是一种普遍存在的神经退行性疾病,至今为止,我们对于其分子和细胞复杂性仍然知之甚少。

阿尔茨海默病(AD)是一种普遍存在的神经退行性疾病,至今为止,我们对于其分子和细胞复杂性仍然知之甚少。

在这里,研究人员分析了来自48个具有不同程度AD病理的个体的前额皮质的80,660个单核转录组。

研究人员在六种主要脑细胞类型中鉴定了转录不同的亚群,包括与病理学相关的亚群,并且以髓鞘形成,炎症和神经元存活的调节剂为特征。

最强的AD相关变化出现在病理进展的早期,并且是高度细胞类型特异性的,而晚期上调的基因在细胞类型中是通用的,并且主要涉及全局应激反应。

令人惊讶的是,研究人员发现,AD相关亚群中女性细胞的过度表达,以及多种细胞类型(包括少突胶质细胞)中性别之间的转录反应显着不同。

总体而言,髓鞘形成相关过程在多种细胞类型中反复受到干扰,这表明其在AD病理生理学中起关键作用。

因此,该单细胞转录组学资源为探寻AD的分子基础和细胞基础提供了第一个蓝图。


原始出处:

Mathys H et al. Single-cell transcriptomic analysis of Alzheimer's disease. NATURE, 2019; doi: 10.1038/s41586-019-1195-2.


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    2019-09-07 liye789132251
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    2019-08-09 mjldent
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