TUG1 and nonpapillary renal cell carcinoma: In the present study, a novel FRLs signature consisting of seven lncRNAs (AC006129.2, CTB-41I6.2, CTD-2510F5.4, RP5-994D16.9, RP11-298J20.4, CTD-2396E7.11, and TUG1) was established for ccRCC.