Figure 5.

Engraftment and differentiation of BM-derived c-kit⁺ cells. (A) Lung sections stained with surfactant protein C (SP-C; red) and DAPI (blue) demonstrating the engraftment and differentiation of green fluorescent protein-positive (GFP⁺) BM-derived c-kit⁺ cells (green) in hyperoxic pups treated with GFP⁺ BM-derived c-kit⁺ cells. Original magnification: 400×. Scale bar: 10 μm. (B) Sparse engraftment of GFP⁺ BM-derived c-kit⁺ or c-kit⁻ cells in the lungs of hyperoxic pups 7 days post-IT injection with GFP⁺ cells expressing SP-C being evidence of differentiation.