NUCB2 and nonpapillary renal cell carcinoma: For studies on NUCB2 in cancers, Fu et al. analyzed a Chinese cohort (training set: 182 patients and validation set: 434 patients) with ccRCC patients and observed through multivariate Cox proportional hazard models that high expression level of NUCB2 was an independent poor prognostic factor for OS and CSS (cancer-specific survival).