Using TISIDE (an integrated repository portal for tumor-immune system interaction) platform [165], we observed a significant reverse correlation (Spearman r = −0.503, p < 2.2 × 10−16) between RKIP and CD274 (PD-L1) expression in PC (n = 498, TCGA PC dataset) (Figure 5). The gene discussed is PEBP1; the disease is neoplasm.