Recombinant Porcine IL-8/CXCL8 (Catalog # 535-IN) chemoattracts the BaF3 mouse pro‑B cell line transfected with human CXCR2 in a dose-dependent manner (orange line). The amount of cells that migrated through to the lower chemotaxis chamber was measured by Resazurin (Catalog # AR002). Chemotaxis elicited by Recombinant PorcineIL-8/CXCL8 (50 ng/mL) is neutralized (green line) by increasing concentrations of Goat Anti-Porcine IL-8/CXCL8 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF535). The ND50 is typically 1.5-7.5 µg/mL.