IL24 and neoplasm: Low concentration of IL-24 stimulation did not affect the peripheral Th1 percentage (Tukey test, P = 0.642, Figure 3B), however, significantly down-regulated tumor-infiltrating Th1 percentage (1.30 ± 0.19% vs. 1.67 ± 0.28%, Tukey test, P < 0.0001, Figure 3B).