Comparative Analysis of Adipose-Derived Stromal Cells and Their Secretome for Auricular Cartilage Regeneration

Figure 5

Immunohistochemical detection of elastin. New cartilage (arrow) was evident in the adipose-derived stromal cell (ADSC) group at 4 (a) and 8 weeks (d) after ADSC injection. Small amounts of ECM and fibrous tissue were observed, respectively, in the secretome (b, e) and PBS (c, f) groups at 4 and 8 weeks (magnification, 200x).

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