Research Article

Differentiation of Human Amniotic Mesenchymal Stem Cells into Human Anterior Cruciate Ligament Fibroblast Cells by In Vitro Coculture

Figure 3

Expression of collagen type I on day 21 and its quantification in each group based on immunofluorescence staining. Expression of collagen type I over time in all groups and intracellular secretion. Expression of collagen type I in Group C increased on days 7, 14, and 21. Expression of collagen type I was greater in Group C than in Group D at the same time points. Expression of collagen type I was greater in the coculture groups than in Group A and on days 7, 14, and 21, and it was greater in Group E than in other groups (original magnification ×100, scale bar = 100 μm) ().