Figure 3
From: Three-dimensional culture of human meniscal cells: Extracellular matrix and proteoglycan production
![Figure 3](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2F1472-6750-8-54/MediaObjects/12896_2008_Article_323_Fig3_HTML.jpg)
Histologic images of human meniscus cells cultured under control conditions in the 3D collagen sponge. A. Arrows show good attachment of cells to the sponge surface. B. * denotes concentration of ECM. C. Margin shows a tight layer of cells along the perimeter of the sponge. (Paraffin embedded toluidine-blue stained specimens; for all images, bar = 50 μm).