Tissue-colonizing disseminated tumor cells secrete prostaglandin E2 to promote NK cell dysfunction and evade anti-metastatic immunity
Details
Publication Year 2024-11-26,Volume 43,Issue #11,Page 114855
Journal Title
Cell Reports
Publication Type
Research article
Abstract
Natural killer (NK) cells are critical for anti-metastatic immunity and can eliminate metastasizing tumor cells within circulation and sites of metastatic seeding. Here, we show that disseminated tumor cells (DTCs) colonizing the mouse lung secrete prostaglandin E2 (PGE(2)) to locally induce NK cell dysfunction, allowing outgrowing metastases to escape immune control and establish metastatic disease. Mechanistically, PGE(2) signaling through its receptors EP2 and EP4 mediates NK cell dysfunction, which leads to reprogramming of NK cell gene expression and results in impaired production of anti-metastatic cytokines. In human cancer patients, the PGE(2)-EP2/EP4 axis is associated with NK cell dysfunction within distant organ metastases. Disabling EP2/EP4 signaling in NK cells prevents their dysfunction in DTC-colonized lungs and achieves effective NK cell-mediated control of metastatic disease. Our findings reveal a suppressive signaling axis exploited by metastasizing tumor cells to escape immune control in distant organs that could be targeted for metastatic cancer therapy.
Publisher
Cell Press
Keywords
*Killer Cells, Natural/immunology/metabolism; Animals; *Dinoprostone/metabolism; Mice; Humans; Neoplasm Metastasis; Mice, Inbred C57BL; Cell Line, Tumor; Signal Transduction; Receptors, Prostaglandin E, EP4 Subtype/metabolism; Receptors, Prostaglandin E, EP2 Subtype/metabolism; Lung Neoplasms/secondary/immunology/pathology/metabolism; Tumor Escape; CP: Cancer; CP: Immunology
Department(s)
Laboratory Research
Open Access at Publisher's Site
https://doi.org/10.1016/j.celrep.2024.114855
Terms of Use/Rights Notice
Refer to copyright notice on published article.


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