The presence of increased numbers of PMNs in the bronchoalveolar lavage fluid (BALF) portends a poor prognosis for IPF patients.33 Recently, a prospective study also demonstrated that excess PMNs in the blood of IPF patients also predicted worse outcomes and that this enhanced neutrophilia may occur because endothelial colony‐forming cells isolated from IPF patients secreted IL‐8/CXCL8, a known PMN‐recruiting chemokine.34 This study also noted PMNs present in histologic analyses of IPF lungs. The gene discussed is CXCL8; the disease is idiopathic interstitial pneumonia.