However, when these seven patients were included in the total group of patients analyzed (total n = 57 patients), we found that a high co-expression of MRP2/CXCR4/PD-L1 had an excellent predictive value (AUC = 0.84, p = 0.0001, Figure 4D, right) of a favorable OS (30 months vs. 6 months, HR = 0.35, CI = 0.19–0.63, p = 0.0005), regardless of the tumor stage (Figure 4E, right). This evidence concerns the gene CXCR4 and neoplasm.