Abstract
Tumor-infiltrating neutrophils (TINs) are highly heterogeneous and mostly immunosuppressive in the tumor immune microenvironment (TIME). Current biomarkers of TINs and treatment strategies targeting TINs have not yielded optimal responses in patients across cancer types. Here, we separated human and mouse neutrophils into three developmental stages, including promyelocyte (PM), myelocyte & metamyelocyte (MC & MM), and band & segmented (BD & SC) neutrophils. Based on this separation, we observed the predominance of human but not mouse MC & MM-stage neutrophils in bone marrow (BM), which exhibit potent immunosuppressive and tumor-promoting properties. MCs & MMs also occupy the majority of TINs among patients with 17 cancer types. Moreover, through the creation of a NOD/ShiLtJGpt-Prkdcem26Cd52Il2rgem26Cd22/Gpt (NCG)-Gfi1−/− human immune system (HIS) mouse model, which supports efficient reconstitution of human TIN, we found a significant increase of BM MCs & MMs in tumor-bearing mice. By comparing the single-cell RNA sequencing analysis results of human neutrophils from both BM and tumors, we found that CD63 and Galectin-3 distinguish MC & MM from neutrophil populations in cancer patients. Furthermore, we proposed a strategy with Fms-like tyrosine kinase 3 ligand to specifically induce the trans-differentiation of MCs & MMs into monocytic cells, and trigger tumor control in NCG-Gfi1−/− HIS mice. Thus, our findings establish an essential role of human MC & MM-stage neutrophils in promoting cancer progression, and suggest their potential as targets for developing potential biomarkers and immunotherapies for cancer.
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Data availability
This study did not generate new materials. The scRNA-seq and bulk RNA-seq data have been deposited in the Genome Sequence Archive in National Genomics Data Center, China National Center for Bioinformation/Beijing Institute of Genomics, Chinese Academy of Sciences that are publicly accessible at https://ngdc.cncb.ac.cn/gsa (GSA: HRA011772, under GSA for Human category). Original code has been deposited at GitHub and is available at https://github.com/yuzu1999/Neutrophils.
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Acknowledgements
This work was funded by grants from the National Science and Technology Major Program (2023ZD0500400), the Fundamental Research Funds for the Central Universities (2024300408, XJ2024003602), the National Natural Science Foundation of China (32471000, U24A20378, 82373263, 82403835), the National Key R&D Program of China (2023YFC2506400), the Jiangsu Provincial Science and Technology Plan Special Fund (BK20232018) and the Funding of the Major Program of Shenzhen Bay Laboratory.
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Y. Li and W.L. designed the study. Y. Li, J.W., T.M. and Y. Liang supervised the study and revised the manuscript. W.L. performed the experiments and analyzed the data. with the assistance from T.S., C.L., K.C., Z.Z., Y. Luo, D.H., H.W., Shaorui L., Y.W., Shuang L., H.S., J.L., Y. Liu, D.S., S.D., H.X., L.L., J.X. and Jun X. T.S. and W.L. drafted the manuscript. The clinical samples were provided by S.D., Y. Luo and Y. Liu. The bioinformatic analyses were conducted by C.L. NCG-Gfi1−/− mice were generated by Y. Li, W.L., L.L., J.X., Jun X. and Y. Liang. All authors read and approved the manuscript.
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Y. Li is currently consulting for GemPharmatech Co. J.W. has received research funding from Leap Therapeutics. T.M. is a consultant for Immunos Therapeutics, Daiichi Sankyo Co, TigaTx, Normunity and Pfizer. T.M. is a cofounder and equity holder of IMVAQ Therapeutics. T.M. has received research funding from Surface Oncology, Kyn Therapeutics, Infinity Pharmaceuticals, Peregrine Pharmaceuticals, Adaptive Biotechnologies, Leap Therapeutics, and Aprea Therapeutics, and currently receives research funding from Bristol-Myers Squibb, Enterome SA, and Realta Life Sciences. T.M. is an inventor on patent applications related to work on oncolytic viral therapy, alpha virus-based vaccine, neo-antigen modeling, CD40, GITR, OX40, PD-1, and CTLA-4. The rest of authors declare no competing interests.
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Liu, W., Shi, T., Lu, C. et al. Human myelocyte and metamyelocyte-stage neutrophils suppress tumor immunity and promote cancer progression. Cell Res 35, 588–606 (2025). https://doi.org/10.1038/s41422-025-01145-0
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DOI: https://doi.org/10.1038/s41422-025-01145-0
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