Figure 4From: Three-dimensional culture of human meniscal cells: Extracellular matrix and proteoglycan productionHistologic features of human meniscal cells cultured in 3D collagen sponge in the presence of TGF-β. A, note the high cell density; B, note accumulations of ECM marked by *. (Paraffin embedded sections stained with toluidine blue; for both images, bar = 50 μm).Back to article page