FIG. 7.

Chemical and immunostaining of RGD/RDG-modified ECM-based hydrogels encapsulated with chondrocytes at 3 weeks. Hematoxylin and eosin (H&E) staining demonstrates cellular morphology, Safranin-O staining (Saf-O) demonstrates deposition of GAGs, and collagen I staining (green) demonstrates dedifferentiation with Hoechst DNA staining (blue), and F-actin (green) and collagen type II (red) expression of RGD group (A) and RDG group (B). Scale bar=50 μm (20×). Color images available online at www.liebertpub.com/tea