IL17A and hepatocellular carcinoma: The levels of Th17 and Th1 cells were significantly higher in tumors of patients with HCC (P < 0.001) compared to corresponding non-tumor regions. The intratumoral density of IL-17-producing cells correlated inversely with OS (r = −0.784, P = 0.001); and predicted shorter DFS (median, 7.5 vs. 24.9 months, P = 0.03)