RAP2A and neoplasm: Immunohistochemistry staining showed that the expression of RAP2a and DMNT3a was decreased in a xenograft model with miR-199a-3p overexpression, which suggests that both RAP2a and DMNT3a were targets of miR-199a-3p, and RAP2a and DMNT3a participate in the tumor suppression effect of miR-199a-3p.