Fig. 3From: Characterization of mesenchymal stem cells and fibrochondrocytes in three-dimensional co-culture: analysis of cell shape, matrix production, and mechanical performanceHistological staining of samples after 15 days of culture with all ratios presented as MSC:FCC. Picrosirius red staining imaged with brightfield microscopy (row 1) and polarized light (row 2). Immunohistochemical staining of collagen type I (row 3), collagen type II (row 4), and collagen type X (row 5). Counterstained with hematoxylin; scale bars = 200 μm. Col, Collagen, FCC fibrochondrocyte, MSC mesenchymal stem cellBack to article page