Furthermore, in 85 ccRCC TMA samples, the expression of Aur-A was positively correlated with the expression of SKP2, which was demonstrated by the high Aur-A staining with high SKP2 staining in the same samples (p = 0.001, r = −0.572), while the low Aur-A staining group was associated with low staining group of SKP2 (Fig. 2D). This evidence concerns the gene SKP2 and nonpapillary renal cell carcinoma.