Science. 2022 May 13;376(6594):eabl4896. doi: 10.1126/science.abl4896.
Molecular characterization of cell types using single-cell transcriptome sequencing is revolutionizing cell biology and enabling new insights into the physiology of human organs. We created a human reference atlas comprising nearly 500,000 cells from 24 different tissues and organs, many from the same donor. This atlas enabled molecular characterization of more than 400 cell types, their distribution across tissues, and tissue-specific variation in gene expression. Using multiple tissues from a single donor enabled identification of the clonal distribution of T cells between tissues, identification of the tissue-specific mutation rate in B cells, and analysis of the cell cycle state and proliferative potential of shared cell types across tissues. Cell type-specific RNA splicing was discovered and analyzed across tissues within an individual.
使用单细胞转录组测序对细胞类型进行分子特征分析正在彻底改变细胞生物学,并为深入了解人体器官的生理学提供了新的见解。我们创建了一个人类参考图谱,其中包含来自 24 种不同组织和器官的近 50 万个细胞,其中许多来自同一个供体。该图谱使我们能够对 400 多种细胞类型进行分子特征分析,了解它们在组织中的分布情况,以及基因表达在组织中的特异性变化。使用单个供体的多种组织,我们能够鉴定 T 细胞在组织之间的克隆分布,鉴定 B 细胞的组织特异性突变率,并分析共享细胞类型在组织中的细胞周期状态和增殖潜力。我们还在个体内的不同组织中发现和分析了细胞类型特异性的 RNA 剪接。