Collagen I immunolocation in hAFSCs and hASCs cultured up to 28 days in different supplemented media.

<p>DAPI (blue)and phalloidin-conjugate (red) stain cell nucleus and cytoskeleton, respectively. Collagen I is stained in green and represents the major tendon ECM protein. Scale bar represents 100 µm. Magnification: 200 x.