RRC ID 88503
Author Nakamura-Shinya Y, Iguchi-Manaka A, Murata R, Sato K, Vo AV, Kanemaru K, Shibuya A, Shibuya K.
Title DNAM-1 promotes inflammation-driven tumor development via enhancing IFN-γ production.
Journal Int Immunol
Abstract DNAM-1 is an activating immunoreceptor on T cells and natural killer (NK) cells. Expression levels of its ligands, CD155 and CD112, are up-regulated on tumor cells. The interaction of DNAM-1 on CD8+ T cells and NK cells with the ligands on tumor cells plays an important role in tumor immunity. We previously reported that mice deficient in DNAM-1 showed accelerated growth of tumors induced by the chemical carcinogen 7,12-dimethylbenz[a]anthracene (DMBA). Contrary to those results, we show here that tumor development induced by 12-O-tetradecanoylphorbol-13-acetate (TPA) together with DMBA was suppressed in DNAM-1-deficient mice. In this model, DNAM-1 enhanced IFN-γ secretion from conventional CD4+ T cells to promote inflammation-related tumor development. These findings suggest that, under inflammatory conditions, DNAM-1 contributes to tumor development via conventional CD4+ T cells.
Volume 34(3)
Pages 149-157
Published 2022-2-23
DOI 10.1093/intimm/dxab099
PII 6406999
PMID 34672321
MeSH Animals Antigens, Differentiation, T-Lymphocyte* / metabolism Inflammation / metabolism Interferon-gamma / metabolism Killer Cells, Natural Ligands Mice Neoplasms* T Lineage-Specific Activation Antigen 1
IF 3.519
Resource
Mice RBRC04903