Moreover, the DLK2 level was significantly associated with reduced macrophage infiltrations (** p < 0.01), and the recruitments of neutrophils, dendritic cells, CD4+ T cells, CD8+ T cells, and B cells were not significantly correlated with DLK2 expression in ccRCC (Figure 9B). This evidence concerns the gene CD4 and nonpapillary renal cell carcinoma.