Fig. 6. Intracellular reactive oxygen species production by A549 cells co-cultured with neutrophils.

A549 cells (2 × 10⁵ cells per mL) and neutrophils were incubated with 50 μM H2DCFDA for 30 min at 37 °C. The ratios represent the number of A549 cells relative to that of PBNs. Data are presented as the mean ± SEM of duplicate results from at least three independent experiments. PBNs peripheral blood neutrophils