Furthermore, miR‐608 inhibitor cotransfection significantly increased the colony formation rates and the transwell migratory rates of RAC2/PAK4 siRNA‐transfected PCa cells (Figures 8C,D and 9C,D), and significantly decreased the apoptotic rates of BCL2L1 siRNA‐transfected PCa cells (Figure 8E). Here, PAK4 is linked to posterior cortical atrophy.