(A) Relative expression of miR-200c in LNCaP and RWPE-1 cells. RT-qPCR detection showed that the relative expression of miR-200c in LNCaP cells increased significantly, and there was a significant difference between the LNCaP cells and RWPE-1 cells (P<0.05). There is a difference between the two groups (*P<0.05). (B) miR-200c expression in each group of cells after transfection and RT-qPCR detection showed that the relative expression of miR-200c significantly decreased in the inhibition group, and there was a difference between the inhibition, NC, and simulation groups (*P<0.05), and it significantly decreased in NC group of cells compared with simulation group, indicating a difference (P<0.05). *P<0.05 indicates the difference between the two groups.