CD39 Identifies the CD4+ Tumor-Specific T-cell Population in Human Cancer

Abstract excerpt

Abstract The accumulation of tumor-specific CD4+ and CD8+ effector T cells is key to an effective antitumor response. Locally, CD4+ T cells promote the recruitment and effector function of tumor-specific CD8+ T cells and activate innate killer cells in the tumor. Here, we show that tumor-specific CD4+ T cells were predominantly present in the CD39+ subset of tumor-infiltrating lymphocytes (TIL). The CD39+ CD4+...

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