GZMB and neoplasm: A673 supplemented with DC maturation cytokines, however, induced a significantly higher granzyme B secretion indicative of tumor cell killing compared to control A673 cells in effector to target ratios of 2.5 (p = 0.04), 0.625 (p = 0.04) and 0.156 (p = 0.03), confirming stronger anti-tumor effects when A673 was supplemented (Figure 4B).