Tumor cell expression of programmed cell death-1 ligand 1 is a prognostic factor for malignant melanoma.

Background : Melanoma tends to be refractory to various immunotherapies because of tumor-induced immunosuppression. To investigate the mechanism underlining the immunosuppression of melanoma patients, the authors focused on programmed cell death-1 (PD-1)/PD-1 ligand 1 (PD-L1) interaction between tum... View More