To determine if the levels of FGF-10 from IPF subjects is diminished relative to control, non-IPF lungs, we assessed the constitutive expression of FGF-10 mRNA in MSCs obtained from surveillance bronchoscopies and BAL from lung transplant recipients without bronchiolitis obliterans or infection and grown ex vivo. The gene discussed is FGF10; the disease is idiopathic pulmonary fibrosis.