Children with CF show increased levels of MIP-1α, MIG, MCP-1, IL-8, and IL-6 in BAL relative to healthy control children (Figure 1G) [MIP-1α (4.9pg/ml vs 0.75pg/ml, p = 0.01), MIG (33.81pg/ml vs 7.41pg/ml, p = 0.007), MCP-1 (31.14pg/ml vs 1.8pg/ml, p=0.0003), IL-8 (191.3pg/ml vs 20.32pg/ml, p=0.01), and IL-6 (17.12pg/ml vs 0.8pg/ml, p=0.003)]. This evidence concerns the gene CXCL8 and cystic fibrosis.