Figure 5: proinflammatory cytokines in ASF from normoxia- or hyperoxia-exposed Calu-3 monolayers with or without +20 cmH2O. Both IL-6 (a) and IL-8 (b) increased in pressure-exposed groups over time ( ) but not in control and hyperoxia alone groups. Pressure-exposed groups are greater than control and hyperoxia ( ) but not different from each other. Data are mean ± SEM; greater than control and hyperoxia; greater than at 24 hrs. for each condition.