PRL and glioblastoma: The percentage of PRL+ samples in GII-III and GBM patients was similar between men [GII-III/PRL+: 12% (8–16%); GBM/PRL+: 28% (19–38%)] and women [GII-III/PRL+: 13% (9–18%); GBM/PRL+: 23% (12–36%)] and the upregulation of PRL mRNA levels in GBM with respect to GII-III samples was found in both female and male patients (Fig. 8B; Supp.