CD4 and nonpapillary renal cell carcinoma: In ccRCC, NUF2 expression was significantly positively correlated with dendritic cell (DCs) (r = 0.382, P = 2.86E-17), B cells (r = 0.251, P = 4.75E-08), macrophages (r = 0.231, P = 7.36E-07), neutrophils (r = 0.386, P = 1.00E-17), CD4 + T cells (R = 0.219, P = 2.20E-06) and CD8 + T cells (r = 0.25, P = 5.515E-08).