New model for cardiomyocyte sheet transplantation using a virus-cell fusion technique

Figure 8 HE staining and immunostaining of cellular close contacts in G1. A: The myofibrils of cardiomyocytes (asterisk) are looser than those of skeletal muscle fibers (MF). The boundary is not differentiated between the cardiomyocytes and skeletal muscle fibers. A part of the myoblast sarcoplasma seems to project into the cardiomyocyte plasma (arrows); B: Immunostaining for cardiac troponin (red), skeletal myosin (green), and nuclei (blue). Small projections of skeletal myosin produce invaginations of cardiac troponin (short arrows). Cardiac troponin and skeletal myosin sandwich some nuclei (dotted long arrows) from each side.