Immunohistochemistry was used to test the expression of Ki-67 in transplanted tumor tissues and it was showed that by comparison with the sh-NC group, Ki-67 expression was reduced in the sh-FOXP4-AS1-1 and sh-FOXP4-AS1-2 group (both P < 0.05) (Fig. 3G–H). Here, FOXP4 is linked to neoplasm.