File Name : figure s1.tif

Caption : figure s1. hematoxylin and eosin (he) staining of regenerated tissues in vivo.
the results of the he staining of sections from the five groups at 4, 8 and 12 weeks after treatment are shown. the original cartilage and defect was marked with triangles in black and red respectively.  (original magnification × 40, scale bar = 500 μm; original magnification × 200, scale bar = 100 μm). 

File Name : figure s2.tif

Caption : figure s2. col i immunohistochemical staining (ihc) of regenerated tissues in vivo.   
the results of col i immunohistological staining (ihc) of sections from the five groups at 4, 8 and 12 weeks after treatment are shown. the original cartilage and defect was marked with triangles in black and red respectively. (original magnification × 40, scale bar = 500 μm; original magnification × 200, scale bar = 100 μm).