Figure 6: (a) Fluorescence microscopy of α-sarcomeric actin staining of a harvested construct. Areas with strong expression of α-sarcomeric actin, which is a muscle-specific structure protein for myogenic differentiation, can be observed. Specimen was taken out of the Co8 group (blue = DAPI, red = α-sarcomeric actin). (b) Fluorescence microscopy of MCH staining of a harvested construct. The same specimen as Figure 6(a) with a strong expression of MHC as marker for late myogenic differentiation. Muscle-specific cross-striation can be shown here (blue = DAPI, red = MHC).