CD274 and posterior cortical atrophy: The regulation of DEGs in miR-214 knockdown and overexpressing cells was further confirmed by analyzing the expression of CXCR4, SESN3, PD-L1 (PC3), as well as CXCR4 and PD-L1 (MDA-PCa-2b) proteins using a Western blot (Figure 5H,I).