PDCD6IP and posterior cortical atrophy: Further, proteomic analyses of exosomes from PCa cell lines (PC346C and VCaP) and immortalized primary prostate epithelial cells (PNT2C2 and RWPE-1) revealed about 481 and 385 proteins respectively including Fatty acid synthase (FASN), Programmed Cell Death 6 Interacting Protein (PDCD6IP), Exportin 1 (XPO1) and Enolase 1 (ENO1) which could serve as biomarkers of PCa [43].