“…Immunohistochemistry revealed the cardiac tumors to stain positive for smooth muscle a-actin, troponin C, desmin, and, in a fraction of cells, Myo D1, which met the criteria for cardiac rhabdomyosarcoma. 1,24,34,35 In the present model the integrity of the expressed transgene was confirmed by means of immunohistochemical staining from an antibody recognizing the COOH-terminal end of TAg. In addition, transgene expression was found to be in line with the promoter function.…”