TUG1 and nonpapillary renal cell carcinoma: LncRNA taurine up-regulated gene 1 (lncRNA TUG1) (37, 38) and small nucleolar RNA host gene 14 (SNHG14) (39), that were down-regulated in our dataset, had been reported to be down-regulated in ccRCC tissues, which also played important roles in the pathogenesis of RCC.