Of note, the apoptosis of epithelial cells in the lung was increased in Del-1−/− mice at 7 dpa (Figure S10A), However, Del-1 supplementation lowered the levels of the apoptosis of neutrophils and epithelial cells at 14 dpa in mice with BLM-induced PF (Figure S10B). Here, EDIL3 is linked to pemphigus foliaceus.