Figure 3. Induced MSCs on the amniotic membrane (AM). A: Phase contrast micrographs of the AM after trypsin digestion showed no cells left. B: Morphology of MSCs seeded on the AM for three days were clear and did not significantly change compared with the pre-vaccination (40×). C: Immunofluorescence staining showed the epithelial-like cells on the AM cultured for three days expressed CK12. D: Section of epithelial cell graft by hematoxylin and eosin (H&E) staining showed epithelial like cells on the collagen fibers of AM.