Fig 4. Interstitial perfusion enhances ECM production in the scaffold core.
HACs were cultured for 21 days within collagen sponges in static or dynamic conditions using either program 1 (n = 4) or program 2 (n = 6) in the presence of BIT. Representative pictures show parallel sections of the scaffold core stained for type II and type I collagen by IHC (scale bars 10 μm).