CD4 and neoplasm: Significantly higher amounts of CD4+, CD8+, and activated CD8+ T cells within the tumor-bedding site were observed in the E.7 + α-mPD-L1 + NKDC group compared with those in the mono-treated and un-treated groups (all p < 0.05; Fig. 7), indicating DC-associated accumulation and activation of T cells may contribute to enhance tumor control of α-mPD-L1/NKDC combination.