Concentrations of IL-4 (23.40 ± 0.78 pg/mL), IL-5 (15.05 ± 1.13 pg/mL), IL-13 (331.93 ± 61.74 pg/ml), IL-17 (72.21 ± 7.10 pg/ml) in BALF of mice in the wild-type group with asthma were significantly higher than that of control group (P < 0.05). Here, IL4 is linked to asthma.