SERPINA2 and nonpapillary renal cell carcinoma: Recently, many studies have predicted the prognosis of ccRCC by constructing a prognostic signature based on miRNAs and lncRNAs (21–23), but few have reported the construction of an autophagy-related prognostic signature to predict the prognosis of ccRCC or a bioinformatic exploration of the possible role of ARGs in ccRCC.