
Keywords: BMSCs; bone marrow mesenchymal stem cells; AECs; alveolar epithelial cells; ATI; alveolar epithelial type I; ATII; alveolar epithelial type II; FN; fibronectin; SP-C; surfactant protein-C; AQP-5; aquaporin-5; HGF; hepatocyte growth factor; KGF; keratinocy