As expected, compared with the pCDH-vector control cells, Kidins220-knockdown PC3 and DU145 cells showed a reduction in cell proliferation and the increase of apoptotic cells in vitro (P < 0.05; Figures 5C–5E) and reduced tumor growth in xenographed nude mice (P < 0.05; Figure 5F–5H), mimicking the effects of miR-4638-5p overexpression. Here, KIDINS220 is linked to neoplasm.