CD177 modulates the function and homeostasis of tumor-infiltrating regulatory T cells.
Nat Commun
; 12(1): 5764, 2021 10 01.
Article
em En
| MEDLINE
| ID: mdl-34599187
ABSTRACT
Regulatory T (Treg) cells are one of the major immunosuppressive cell types in cancer and a potential target for immunotherapy, but targeting tumor-infiltrating (TI) Treg cells has been challenging. Here, using single-cell RNA sequencing of immune cells from renal clear cell carcinoma (ccRCC) patients, we identify two distinct transcriptional fates for TI Treg cells, Fate-1 and Fate-2. The Fate-1 signature is associated with a poorer prognosis in ccRCC and several other solid cancers. CD177, a cell surface protein normally expressed on neutrophil, is specifically expressed on Fate-1 TI Treg cells in several solid cancer types, but not on other TI or peripheral Treg cells. Mechanistically, blocking CD177 reduces the suppressive activity of Treg cells in vitro, while Treg-specific deletion of Cd177 leads to decreased tumor growth and reduced TI Treg frequency in mice. Our results thus uncover a functional CD177+ TI Treg population that may serve as a target for TI Treg-specific immunotherapy.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Linfócitos do Interstício Tumoral
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Linfócitos T Reguladores
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Receptores de Superfície Celular
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Proteínas Ligadas por GPI
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Homeostase
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Isoantígenos
Tipo de estudo:
Prognostic_studies
Limite:
Animals
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Humans
Idioma:
En
Ano de publicação:
2021
Tipo de documento:
Article