Quantitative measurement of the serum cytokines in mice after the induction of leukemia (WEHI-3) revealed the IL-10 level at 156.30±4.10 pg/mL, whereas the levels of IFN-γ, TNF-α, IL-12β, and IL-2 were 52.63±5.03, 42.63±3.77, 185.40±15.24, and 14.81±0.74 pg/mL, respectively. Here, IL2 is linked to leukemia.