KLRG2 and neoplasm: The expression of KLRG2 was positively correlated with tumor purity (Spearman’s ρ = 0.13, p = 0.026), while demonstrating negative correlations with infiltration levels of dendritic cells (Spearman’s ρ = −0.161, p < 0.001) and CD8+ T cells (Spearman’s ρ = −0.224, p < 0.001), as shown in Figure 8A.