Fig. 4

The protective effect of transplanted mDASCs on bleomycin-induced pulmonary fibrosis development. a The mDASCs were transplanted into recipient mice 7 days after bleomycin instillation, and the lung sections were stained by hematoxylin and eosin (H&E) 7, 14, and 21 days after bleomycin instillation. Scale bar, 100 μm. b Ashcroft score of lung fibrosis for panel a. n = 4. Error bars, S.E.M. **P < 0.01. c Using the same experimental setting, the lung sections were stained by Masson’s trichrome for collagen I deposition (blue). Scale bar, 50 μm. d Quantitation of the collagen content for panel b. n = 5. Error bars, S.E.M. **P < 0.01