Studies concerning the effects of CDC20 (Yuan et al., 2017), KIF4A (Wei et al., 2019), NEK2 (Arai et al., 2015), TPX2 (Wei et al., 2019), and NCAPG (Wei et al., 2019) on ccRCC have drawn similar conclusions. This evidence concerns the gene KIF4A and nonpapillary renal cell carcinoma.