生物
胚胎干细胞
转录组
细胞生物学
免疫系统
血管生成
干细胞
基因
基因表达
免疫学
遗传学
作者
Hongtao Wang,Jian He,Changlu Xu,Xiaoyuan Chen,Hua Yang,Shujuan Shi,Cuicui Liu,Yang Zeng,Dan Wu,Zhijie Bai,Mengge Wang,Yao Wen,Pei Su,Meijuan Xia,Baiming Huang,Chunyu Ma,Lihong Bian,Yu Lan,Tao Cheng,Lihong Shi,Bing Liu,Jiaxi Zhou
出处
期刊:Cell Stem Cell
[Elsevier]
日期:2021-03-01
卷期号:28 (3): 535-549.e8
被引量:78
标识
DOI:10.1016/j.stem.2020.11.006
摘要
Despite our growing understanding of embryonic immune development, rare early megakaryocytes (MKs) remain relatively understudied. Here we used single-cell RNA sequencing of human MKs from embryonic yolk sac (YS) and fetal liver (FL) to characterize the transcriptome, cellular heterogeneity, and developmental trajectories of early megakaryopoiesis. In the YS and FL, we found heterogeneous MK subpopulations with distinct developmental routes and patterns of gene expression that could reflect early functional specialization. Intriguingly, we identified a subpopulation of CD42b+CD14+ MKs in vivo that exhibit high expression of genes associated with immune responses and can also be derived from human embryonic stem cells (hESCs) in vitro. Furthermore, we identified THBS1 as an early marker for MK-biased embryonic endothelial cells. Overall, we provide important insights and invaluable resources for dissection of the molecular and cellular programs underlying early human megakaryopoiesis.
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