Fig. 2From: The immune checkpoint regulator PD-L1 expression are associated with clinical progression in prostate cancerRepresentative immunohistochemical (IHC) staining of PD1 and PDL1 in BPH. A Representative image showing PD-1 expression in lymphocytes. B Representative image showing PD-L1 expression in epithelial cells and lymphocytes. Original magnification, × 200. PD-1, programmed cell death protein 1; PD-L1, programmed death-ligand 1; BPH, benign prostatic hyperplasiaBack to article page