SMAD7 and nonpapillary renal cell carcinoma: The expression levels of ATXN1, BRMS1L, COL14A1, CPEB3, DNAJB9, DOCK4, KIF3B, NEDD4L, NFIB, PTPRJ, RBL2, SMAD7 were evaluated in the same ccRCC specimen as MCM7.