Figure 5. PR-39, but not shorter PR-39 derived peptides induce IL-8 production.

Porcine macrophages (3D4/31 cells) were incubated with 20 µM peptides for 4 (white bars) or 24 h (black bars). A) IL-8 and B) TNF-α production in the cell supernatant was determined using ELISA. Shown are mean ± SEM of at least three independent experiments. *: p<0.05 compared to the no peptide control.