Moreover, the expressions of M2 macrophage markers such as CD206 (mannose receptor C-type 1, MRC1) (** p = 0.00326) and CD23 (Fc epsilon receptor II, FCER2) (* p = 0.0444) were positively associated with the DLK2 level in ccRCC (Figure 11B). Here, FCER2 is linked to nonpapillary renal cell carcinoma.