Comprehensive single-cell analysis reveals mast cells' roles in cancer immunity
- PMID: 41073552
- DOI: 10.1038/s41388-025-03590-y
Comprehensive single-cell analysis reveals mast cells' roles in cancer immunity
Abstract
Mast cells, traditionally known for their roles in allergic reactions and pathogen defense, have been revealed to possess significant functional diversity within the tumor microenvironment (TME). Through single-cell RNA sequencing analysis across 15 solid tumors (385 samples from 264 patients), 10 distinct mast cell states characterized by unique gene expression patterns and functional attributes were identified. Notably, the C7-HLA-DR cluster that closely linked with antigen presentation, has emerged as a key player in shaping anti-tumor immune responses. In this study, systematic analysis demonstrated that the C7-HLA-DR cluster could interact with T cells to enhance the efficacy of immunotherapy and improve patients' prognosis. On the contrary, the C1-HSPA1 cluster exhibited pro-tumor characteristics, highlighting the functional diversity of mast cells within TME. These findings illustrate the landscape of mast cell within TME and propose a new avenue to boost the efficacy of immunotherapy.
© 2025. The Author(s), under exclusive licence to Springer Nature Limited.
Conflict of interest statement
Competing interests: The authors declare no competing interests. Ethical approval: The study was approved by the Research Ethics Committee of Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University and conducted in accordance with the Declaration of Helsinki. All subjects gave written informed consent before participating in the study.
References
-
- Kotrba J, Dudeck A. Mast cells: The Janus of type 2 inflammation. Immunity. 2024;57:1182–4. - PubMed
-
- Ngai L, Mortha A. Actin branching maintains tissue-resident mast cells. Nat Rev Immunol. 2024;24:541. - PubMed
-
- St John AL, Rathore APS, Ginhoux F. New perspectives on the origins and heterogeneity of mast cells. Nat Rev Immunol. 2023;23:55–68.
-
- Greiner G, Witzeneder N, Berger A, Schmetterer K, Eisenwort G, Schiefer AI, et al. CCL2 is a KIT D816V-dependent modulator of the bone marrow microenvironment in systemic mastocytosis. Blood. 2017;129:371–82. - PubMed
MeSH terms
Substances
LinkOut - more resources
Full Text Sources
Medical
Research Materials
Miscellaneous
