CASP4 and nonpapillary renal cell carcinoma: Moreover, to further comprehend the relation among nine prognostic genes as well as immunity infiltrating in the ccRCC microcircumstance, the correlation between the expression of prognostic genes (CASP3, CASP4, CASP5, CHMP3 (VPS24), CHMP4C, CASP9, AIM2, GSDMB, and PYCARD) and immunity infiltrating in ccRCC was elucidated with TIMER database.