MTOR and nonpapillary renal cell carcinoma: During ~4 years follow-up, Kaplan–Meier survival curve displayed that CSS rate was higher in patients with low p-mTOR expression (score < 3) than those with high expression (≥3) (log-rank = 10.008, P = 0.002), while CSS rate was not correlated with mTOR expression in 145 ccRCC patients (log-rank = 1.373, P = 0.241, Fig. 3).