Immunohistochemical quantification revealed that in PCa, the expression of IL-38 was negatively correlated with the expression of CD8 (r=0.203, p=0.0181, Figures 3A, B), but exhibited no correlation with CD4 expression (r=0.152, p=0.86, Figures 3E, F). This evidence concerns the gene CD8A and posterior cortical atrophy.