Results showed no statistically significant correlation between PRR and sex (expression in tumour centre: Spearman Rho, r = 0.061, p = 0.58; tumour front: r = −0.01, p = 0.99) and age (expression in tumour centre: r= 0.176, p = 0.11; tumour front: r= 0.183, p = 0.12). This evidence concerns the gene ATP6AP2 and neoplasm.