AEC IL-8 responses to co-stimulation with different SA and PA strains.

<p><b>A</b>). IL-8 responses to co-stimulation of PAF+SAF from different SA strains. Beas-2B cells were stimulated with SA filtrates (10% v/v) alone or co-stimulated with PAO1 PAF (2.5% v/v) for 6 h. <b>B</b>). IL-8 responses to co-stimulation of PAF+SAF from different PA strains. Beas-2B cells were stimulated with filtrates from different PA strains (2.5% v/v) alone, or co-stimulated with ATCC29213 SAF (10% v/v) for 6 h. Extracellular IL-8 levels were measured in the AEC supernatant by ELISA after stimulation. All results are shown as mean (±SEM) of n≥4 independent biological replicates. *P<0.05, **P<0.01, ***P<0.001 compared to PAF alone using an unpaired two-tailed student’s t-test.