An immune cell atlas reveals the dynamics of human macrophage specification during prenatal development

Zeshuai Wang, Zhisheng Wu, Hao Wang, Ruoqing Feng, Guanlin Wang, Muxi Li, Shuang Yin Wang, Xiaoyan Chen, Yiyi Su, Jun Wang, Weiwen Zhang, Yuzhou Bao, Zhenwei Lan, Zhuo Song, Yiheng Wang, Xianyang Luo, Lingyu Zhao, Anli Hou, Shuye Tian, Hongliang GaoWenbin Miao, Yingyu Liu, Huilin Wang, Cui Yin, Zhi Liang Ji, Mingqian Feng, Hongkun Liu, Lianghui Diao, Ido Amit, Yun Chen, Yong Zeng, Florent Ginhoux, Xueqing Wu, Yuanfang Zhu, Hanjie Li

Research output: Contribution to journalArticlepeer-review

Abstract

Macrophages are heterogeneous and play critical roles in development and disease, but their diversity, function, and specification remain inadequately understood during human development. We generated a single-cell RNA sequencing map of the dynamics of human macrophage specification from PCW 4–26 across 19 tissues. We identified a microglia-like population and a proangiogenic population in 15 macrophage subtypes. Microglia-like cells, molecularly and morphologically similar to microglia in the CNS, are present in the fetal epidermis, testicle, and heart. They are the major immune population in the early epidermis, exhibit a polarized distribution along the dorsal-lateral-ventral axis, and interact with neural crest cells, modulating their differentiation along the melanocyte lineage. Through spatial and differentiation trajectory analysis, we also showed that proangiogenic macrophages are perivascular across fetal organs and likely yolk-sac-derived as microglia. Our study provides a comprehensive map of the heterogeneity and developmental dynamics of human macrophages and unravels their diverse functions during development.

Original languageEnglish
Pages (from-to)4454-4471.e19
Number of pages38
JournalCell
Volume186
Issue number20
DOIs
StatePublished - 28 Sep 2023

All Science Journal Classification (ASJC) codes

  • General Biochemistry,Genetics and Molecular Biology

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