[Cardiomyocyte cytoskeleton in dilated cardiomyopathy and ischemic heart disease].

Summary. Vinculin, the protein of cardiomyocyte cytoskeleton in the myocardium of patients with a dilated cardiomyopathy and ischemic heart disease, was revealed by means of monoclonal antibodies and by a method of indirect immunofluorescence. Cytoskeleton of patients with dilated cardiomyopathy is disorganized, hypertrophic and contains greater amounts of vinculin than cytoskeleton of normal cardiomyocytes. This most likely negatively influences cell contractile capacity. The vinculin content was also higher in cardiomyocyte cytoskeleton of patients with ischemic heart disease but at a less degree than in patients with dilated cardiomyopathy.