FIG. 4.

Stability of neocartilage engineered from extensively expanded P2+bFGF and moderately expanded P1 chondrocytes. High-quality neocartilage formed from both P2+bFGF and P1 chondrocytes at all time points. * scaffold, ** neocartilage (A). Neocartilage to scaffold ratio remained unchanged throughout the experiment (B). GAG (C) and GAG/DNA ratio (D) remained stable in neocartilage engineered from P2+bFGF chondrocytes (n = 4 for each group). Safranin O stain, scale bar: 500 μm. Color images available online at www.liebertpub.com/tea