IL2 and hepatocellular carcinoma: Regarding the cytokine levels of the assessed HCC patients, there was a significant increase in the serum level of IL-2 after the first, second and third cycle of the tested CPT [398 ± 140 pg/ml, 437 ± 147 pg/ml, and 492 ± 156 pg/ml; respectively], in comparison to the baseline level [357 ± 156 pg/ml, P = 0.001].