CXCL8 and infection: In vitro, in cell lines and primary bronchial epithelial cells, pre-incubation with NTHi followed by infection with RV results in upregulation of the neutrophil chemoattractants CXCL8 (IL-8), epithelial-derived neutrophil-activating peptide 78 (CXCL5) and growth-related oncogene α (CXCL1).