PRDX1 and nonpapillary renal cell carcinoma: A xenograft mouse model was utilized to investigate the <i>in vivo</i> effects of PRDX1.<h4>Results</h4>The analysis of 90 pairs of ccRCC samples demonstrated that elevated PRDX1 expression was significantly associated with higher malignancy in ccRCC and correlated with tumor prognosis and clinical stage.