Copyright © 1991 by the European Society of Cardiology.
© 1991 The European Society of Cardiology
Murine cytomegalovirus myocarditis
Department of Pathology, University of Vermont College of Medicine Burlington, Vermont, U.S.A.
Address for correspondence: J. E. Craighead, Department of Pathology, University of Vermont College of Medicine, Burlington, VT 05405, U.S.A.
Murine cytomegalovirus infects a variety of organs after inoculation into adult male mice. We have established a model of myocarditis in which focal lesions form adjacent to virus-infected endothelial cells. The development of the myocarditis is mediated by CD4+ helper T cells. The lesions fail to develop when these cells are eliminated from the animal by administration of a specific monoclonal antibody. Alternatively, repletion of thymectomized, irradiated and bone-marrow reconstituted animals with CD4+ cells results in myocarditis. The evidence, although incomplete, suggests that a delayed hypersensitivity response is the pathogenetic mechanism involved.
Key Words: Cytomegalovirus myocarditis CD4+T lymphocytes delayed hypersensitivity