(A) Volcano plots showcasing the levels of neutrophil degranulation markers, MPO, lactoferrin, and MMP9 were measured in the cell supernatant one hour post stimulation in non-stimulated cells, cell stimulated with 1 μg/mL of K. pneumoniae LPS, and cells stimulated with 1 μg/mL of K. pneumoniae LPS plus 1 μM R406. Dotted lines represent the median as well as 25th and 75th quartile for each analyte. P values were computed using one-way ANOVA for all comparison. (B) Volcano plots showcasing the concentration of soluble TNF-α, IL6, and IL-1β in the supernatant 1 h post stimulation in the same groups as (A).