Fig. 2. Expression of human HLA-ABC on the surface of human undifferentiated (A–C) and differentiated (D–F) MSC by immunocytochemical stain (green color). The nuclei of the MSC were counterstained with DAPI (blue color). (A and D) DAPI stain. (B and E) FITC stain. (C and F) Merged. 200× (A–C), 40× (D–F). Sale bars = 20 µm (A–C), 100 µm (D–F).
