Clinicopathological and prognostic significance of programmed death ligand-1 expression in breast cancer: a meta-analysis.
The present meta-analysis revealed that cases of breast cancer with PD-L1 positivity in all cells exhibited higher histological grades, lymph node metastasis, and poorer disease-free survival. Therefore, positive expression of PD-L1 may be a useful prognostic marker in breast cancer. Six studies that included 7877 cases were selected for the analysis. Higher PD-L1 expression in all […]
