ssGSEA analysis iedentified multiple types of immune cell infiltration in TCGA ccRCC samples, among which central memory CD4+T, activated CD4+T and effector memory CD8+T cells found to be positively correlated with DDX39 expression, while immature dendritic, CD56+(bright) nature killer and type 17 T helper cells were found to be negatively correlated with DDX39 expression (Figure 8B, C). The gene discussed is NCAM1; the disease is nonpapillary renal cell carcinoma.