Taking the intersection of common genes and DE genes into consideration, we obtained 19 genes (ALB, ASS1, GSTM3, MAD2L1, ALDH1B1, ALDH4A1, MAPK1, GSTZ1, GATM, FTCD, CCNA2, CENPF, GSTM4, ASNS, CCNB1, NAGS, ACY3, GSTA3, and ESPL1), which might play important roles in the ccRCC development. This evidence concerns the gene ALDH4A1 and nonpapillary renal cell carcinoma.