FIG. 3.

Effect of porin on neutrophil oxidative response to the activating peptide FMLP. PMNs were preincubated with porin (1.0 μg/ml), with corresponding buffer control, or with PBS for 3 min and subsequently stimulated by adding 100 nM FMLP to each sample (see arrow). Control cells treated with porin but without FMLP were run in parallel. Shown are representative results of three experiments. (A) Kinetics of lucigenin-enhanced CL of normal PMN. (B) Kinetics of luminol-enhanced CL of normal PMN.