Adora1 promotes colon cancer immune evasion via Irf1-PD-L1 signal axis.

ABSTRACT: Immunotherapy targeting immune checkpoints such as programmed death-1 (PD-1) and programmed death-ligand 1 (PD-L1) has emerged as a novel treatment option for various cancers, including colon cancer. However, immune evasion mechanisms can limit the efficacy of cancer immunotherapy. Understanding the regulatory mechanisms of PD-1/PD-L1 expression is therefore critical to enhancing immunotherapeutic outcomes. A previous study demonstrated that the adenosine A1 receptor (Adora1) regulates PD-L1 expression and tumor immune evasion in human melanoma; however, its role in colon cancer and associated immune escape remains poorly defined. To investigate this, we downregulated Adora1 expression in CT26 colon cancer cells using lentiviral transduction of Adora1-targeting shRNA. We assessed Adora1 an

SUBMITTER: Wang Y 

PROVIDER: S-EPMC12432562 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature