追溯人类大脑中的细胞族系与体质马赛克变体
1Sorbonne Université, Institut du Cerveau (Paris Brain Institute) ICM, Inserm, CNRS, Hôpital de la Pitié Salpêtrière, Paris, France. sara.bizzotto@inserm.fr.
Methods in molecular biology (Clifton, N.J.)
|January 2, 2025
概括
在发育中的人类大脑中,体性单核酸变体 (sSNVs) 作为独特的细胞标记物. 这个工作流使用全基因组测序和向测序来追踪细胞系并了解大脑发育.
科学领域:
- 神经科学是一个神经科学.
- 遗传学 遗传学 是一个
- 发展生物学 发展生物学
背景情况:
- 人体马赛克变体,特别是人体单核酸变体 (sSNVs),在发育人类大脑前代细胞中很常见.
- 这些变异作为细胞分裂和克隆扩张的永久性,独特和累积标记.
研究的目的:
- 描述一种实验工作流程,用于在人类大脑中使用体变体进行血统研究.
- 为了能够解读发育中的大脑中的细胞系和克隆结构.
主要方法:
- 全基因组测序 (WGS) 来自人类新鲜冷组织活检的大量DNA,用于sSNV调用.
- 单核全基因组放大 (WGA),然后对sSNV位点进行有针对性的测序以进行验证和遗传学分析.
主要成果:
- 描述的工作流成功地识别和验证了人类大脑组织中的sSNVs.
- 该方法可以重建细胞系和研究人类大脑发育期间的克隆动态.
结论:
- 这种工作流提供了一种强大的方法,用于在人类大脑中使用自然存在的体质变异来追踪血统.
- 了解细胞分裂模式和克隆扩张对于理解人类大脑发育和潜在的神经系统疾病至关重要.
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