CD4 and neoplasm: No significant differences were found when the frequencies of NK cells (CD3−/DX5+) (Figure 4C), CD4 and CD8 T cells (Figure 4D), CD11b+/Ly6C+/Ly6G− (monocytes) and CD11b+/Ly6C+/Ly6G+ (granulocytes) (Figure 4E), or B cells (B220+) (Figure 4F) were analyzed in F1 recipients of A20 PD-L1 WT or A20 PD-L1 KO tumor cells.