CDK1 and clear cell renal carcinoma: To further consolidate all the above results and the hypothesis that NCAPG promoted the proliferation and progression via mediating with CDK1, we tried to analyze the relationship between the expression of NCAPG and the expression of CDK1 among 72 cases with renal clear cell carcinoma; we found that CDK1 was associated with NCAPG (P = 0.001; Table 2).