In the bleomycin model of pulmonary fibrosis, Fgf10 overexpression in the alveolar epithelium of Sftpc-rtTA;Tet-Fgf10 mice attenuates fibrosis through inhibition of TGF-β and improved survival of AT2 cells This indicates that Fgf10 has a protective as well as regenerative effect on epithelial progenitor cells (Gupte et al., 2009). This evidence concerns the gene FGF10 and pulmonary fibrosis.