Differential Characterization of Two Kinds of Stem Cells Isolated from Rabbit Nucleus Pulposus and Annulus Fibrosus

Figure 2

A typical colony of AFSCs (a) and NPSCs (c) and morphology of AFSCs (b), NPSCs (d), and DFCs (e, f) after primary culture for 20 days. The AFSCs showed a cobblestone-like shape ((b), yellow arrows) and NPSCs gave round shape with larger nuclei ((d), white arrows). In contrast, the fibroblasts were highly elongated (e, f). Red Bar: 500 μm. Yellow Bar: 100 μm.

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