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Immunohistochemical staining images of microsphere-based constructs at week 6. BLANK, TGF, and DCC were stained for collagen I, collagen II, and aggrecan. No images could be obtained from the CS group as the sections washed off from the slides during the staining process. The BLANK and the TGF group stained more intensely for aggrecan than the DCC group. Images of negative controls (primary antibody omitted) are also shown. Scale bars: 100 μm.
