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Tumor-Promoting Ly-6G SiglecF Cells Are Mature and Long-Lived Neutrophils. | LitMetric

Tumor-Promoting Ly-6G SiglecF Cells Are Mature and Long-Lived Neutrophils.

Cell Rep

Center for Systems Biology, Massachusetts General Hospital Research Institute and Harvard Medical School, Boston, MA, USA; Department of Pathology and Immunology, University of Geneva, Geneva, Switzerland; Department of Oncology, Geneva University Hospitals, Geneva, Switzerland. Electronic address:

Published: September 2020

AI Article Synopsis

Article Abstract

Myeloid cells co-expressing the markers CD11b, Ly-6G, and SiglecF can be found in large numbers in murine lung adenocarcinomas and accelerate cancer growth by fostering tumor cell invasion, angiogenesis, and immunosuppression; however, some of these cells' fundamental features remain unexplored. Here, we show that tumor-infiltrating CD11b Ly-6G SiglecF cells are bona fide mature neutrophils and therefore differ from other myeloid cells, including SiglecF eosinophils, SiglecF macrophages, and CD11b Ly-6G myeloid-derived suppressor cells. We further show that SiglecF neutrophils gradually accumulate in growing tumors, where they can live for several days; this lifespan is in marked contrast to that of their SiglecF counterparts and neutrophils in general, which live for several hours only. Together, these findings reveal distinct attributes for tumor-promoting SiglecF neutrophils and help explain their deleterious accumulation in the tumor bed.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7508173PMC
http://dx.doi.org/10.1016/j.celrep.2020.108164DOI Listing

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