Fig. 6From: Chondrogenic differentiation of bone marrow-derived mesenchymal stem cells following transfection with Indian hedgehog and sonic hedgehog using a rotary cell culture systemStaining results for the process of differentiation induction in the 2D environment. (a) Toluidine blue staining; (b) Collagen II immunohistochemical staining; (c) Annexin V-Cy3 immunofluorescence staining. (Bar = 100 um)Back to article page