HSP90AA1 and nonpapillary renal cell carcinoma: In the study, GEO and TCGA-KIRC databases were used to analyze the expression pattern and clinical significance of HSP90AA1 in ccRCC; immunohistochemistry and Western blot were used to validate HSP90AA1 expression in ccRCC tissues and cell lines; colony formation assays, EdU and TUNEL methods, cell migration and invasion experiments, and a mouse renal orthotopic xenograft tumor model were used to detect the effects of HSP90AA1 overexpression on the biological function of ccRCC; Co-IP and RNA-seq experiments were utilized to explore the downstream regulatory mechanism of HSP90AA1.