Improving function of cytotoxic T-lymphocytes by transforming growth factor-β inhibitor in oral squamous cell carcinoma.

ABSTRACT: Immunotherapy with immune-checkpoint therapy has recently been used to treat oral squamous cell carcinomas (OSCCs). However, improvements in current immunotherapy are expected because response rates are limited. Transforming growth factor-β (TGF-β) creates an immunosuppressive tumor microenvironment (TME) by inducing the production of regulatory T-cells (Tregs) and cancer-associated fibroblasts and inhibiting the function of cytotoxic T-lymphocytes (CTLs) and natural killer cells. TGF-β may be an important target in the development of novel cancer immunotherapies. In this study, we investigated the suppressive effect of TGF-β on CTL function in vitro using OSCC cell lines and their specific CTLs. Moreover, TGFB1 mRNA expression and T-cell infiltration in 25 OSCC tissues were examined by in

SUBMITTER: Kondo Y 

PROVIDER: S-EPMC8486191 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature