Fig 3. Effect of DEP on expression of IL-6 and IL-8 in nasal fibroblasts.

(A) After treatment with DEP (0–50 μg/mL) for 12 hours, mRNA expression of IL-6 and IL-8 was increased in a dose-dependent manner. (B) After treatment with DEP for 48 hours, protein expression levels of IL-6 and IL-8 were also increased in a dose-dependent manner. The graphic data represents the means ± SEM of three independent experiments. * p<0.05; ** p<0.01 compared to control.