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Evrard, Maximilien; Kwok, Immanuel W.H.; Chong, Shu Zhen; Teng, Karen W.W.; Becht, Etienne; Chen, Jinmiao; Sieow, Je Lin; Penny, Hweixian Leong; Ching, Goh Chi; Devi, Sapna; Adrover, José Maria; Li, Jackson L.Y.; Liong, Ka Hang; Tan, Leonard; Poon, Zhiyong; Foo, Shihui; Chua, Jia Wang; Su, I-Hsin; Balabanian, Karl; Bachelerie, Françoise; Biswas, Subhra K.; Larbi, Anis; Hwang, William Y.K.; Madan, Vikas; Koeffler, H. Phillip; Wong, Siew Cheng; Newell, Evan W.; Hidalgo, Andrés; Ginhoux, Florent; Ng, Lai Guan
Immunity (Cambridge, Mass.), 02/2018, Volume: 48, Issue: 2Journal Article
Neutrophils are specialized innate cells that require constant replenishment from proliferative bone marrow (BM) precursors as a result of their short half-life. Although it is established that neutrophils are derived from the granulocyte-macrophage progenitor (GMP), the differentiation pathways from GMP to functional mature neutrophils are poorly defined. Using mass cytometry (CyTOF) and cell-cycle-based analysis, we identified three neutrophil subsets within the BM: a committed proliferative neutrophil precursor (preNeu) which differentiates into non-proliferating immature neutrophils and mature neutrophils. Transcriptomic profiling and functional analysis revealed that preNeu require the C/EBPε transcription factor for their generation from the GMP, and their proliferative program is substituted by a gain of migratory and effector function as they mature. preNeus expand under microbial and tumoral stress, and immature neutrophils are recruited to the periphery of tumor-bearing mice. In summary, our study identifies specialized BM granulocytic populations that ensure supply under homeostasis and stress responses. Display omitted •Proliferation activity identifies committed neutrophil precursor in mice and humans•Neutrophil subsets possess distinct transcriptomic and functional signatures•Defect in neutrophil development leads to impaired neutrophil-mediated responses•Increased circulating immature neutrophils are associated with cancer progression The neutrophil differentiation pathway is poorly defined. Evrard et. al. demonstrate a workflow of characterizing bone marrow neutrophil subsets on the basis of their proliferative capacity and molecular signatures and thereby define the developmental trajectory and functional properties of neutrophils.
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