Fig. 2

Concentration–response analysis of cytokines response to Poly I:C and IL-1β in human airway epithelial cells. Human airway epithelial cells were exposed to increasing concentrations of Poly I:C (0.1, 1, 10 µg/mL), or IL-1β (1, 5, 10 ng/mL), and IL-6, and IL-8 inflammatory cytokines were measured by ELISA. Poly I:C-induced (A) IL-6, and (B) IL-8. IL-1β-induced (C) IL-6, and (D) IL-8. Results are shown as mean + SEM. (p < 0.05*, p < 0.01**, p < 0.001***, p < 0.0001**** compared with negative control). n = 8