Landscape of mast cell populations across organs in mice and humans

Marie Tauber, Lilian Basso, Jeremy Martin, Luciana Bostan, Marlene Magalhaes Pinto, Guilhem R. Thierry, Raïssa Houmadi, Nadine Serhan, Alexia Loste, Camille Blériot, Jasper B.J. Kamphuis, Mirjana Grujic, Lena Kjellén, Gunnar Pejler, Carle Paul, Xinzhong Dong, Stephen J. Galli, Laurent L. Reber, Florent Ginhoux, Marc BajenoffRebecca Gentek, Nicolas Gaudenzio

Research output: Contribution to journalArticlepeer-review


Mast cells (MCs) are tissue-resident immune cells that exhibit homeostatic and neuron-associated functions. Here, we combined whole-tissue imaging and single-cell RNA sequencing datasets to generate a pan-organ analysis of MCs in mice and humans at steady state. In mice, we identify two mutually exclusive MC populations, MrgprB2+ connective tissue–type MCs and MrgprB2neg mucosal-type MCs, with specific transcriptomic core signatures. While MrgprB2+ MCs develop in utero independently of the bone marrow, MrgprB2neg MCs develop after birth and are renewed by bone marrow progenitors. In humans, we unbiasedly identify seven MC subsets (MC1–7) distributed across 12 organs with different transcriptomic core signatures. MC1 are preferentially enriched in the bladder, MC2 in the lungs, and MC4, MC6, and MC7 in the skin. Conversely, MC3 and MC5 are shared by most organs but not skin. This comprehensive analysis offers valuable insights into the natural diversity of MC subtypes in both mice and humans.

Original languageEnglish (US)
Article numbere20230570
JournalJournal of Experimental Medicine
Issue number10
StatePublished - Oct 2 2023

ASJC Scopus subject areas

  • Immunology and Allergy
  • Immunology


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