To explore the relevance of targeting Cebpa to treat human lung fibrosis, we generated organoids from human lung tissue (Supplemental Figure 5A) and treated them with TGF-β1 (10 ng/mL) to induce a fibrotic phenotype with or without Cebpa overexpression (Supplemental Figure 5B). The gene discussed is CEBPA; the disease is pulmonary fibrosis.