SACK1D and prostate adenocarcinoma: In contrast, in BRCA, KIRC, and prostate adenocarcinoma (PRAD), the degree of immune cell infiltration was correlated with the expression level of FAM83D. In the ssGSEA results for BRCA (Figure 4B), the expression level of FAM83D was positively correlated with Th2 cells and aDC cells but negatively correlated with Natural Killer (NK) cells.