We found TSPAN1 is an aberrant expression gene in human IPF tissue compared to normal lung tissue (Figure 1A,B), and we verified the lower protein expression of TSPAN1 in patient IPF tissue, bleomycin‐induced PF mouse and lung fibroblasts (Figure 1 E, H and K). The gene discussed is TSPAN1; the disease is idiopathic pulmonary fibrosis.