Copyright © 1992 by the European Society of Cardiology.
© 1992 The European Society of Cardiology
Polyclonal immunoglobulin therapy protects against cardiac damage in experimental coxsackievirus-induced myocarditis
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*Department of Nutritional Sciences, University of Vermont Burlington Vermont 05405, U.S.A.
Department of Pathology, University of Vermont, Burlington Vermont 05405, U.S.A.
Received 9 August 1990; revised 21 February 1991; .
Correcpondence: Dr S. A. Huber. Department of Pathology, University of Vermont. Burlington, Vermont 05405, U.S.A.
Abstract
Balb/c male mice infected i.p. with 2 x 105 plaque forming units (PFU) of coxsackievirus B3 (CVB3) develop severe mvocarditis 7 days later. Studies were performed to determine whether therapy with normal polyclonal immunoglobulin would prevent cardiac inflammation. Partially purified immunoglobulin was derived from pooled mouse serum by ammonium sulphate precipitation. Infected animals given either 100 or 1000 µg of this preparation for 2 days prior to infection showed greater than 50% reduction in myocarditis compared to control animals which were infected and given either phosphate buffered saline, human immunoglobulin ormonoclonal mouse IgG to an extraneous antigen. Protection did not depend upon inhibition of virus infection since cardiac viral titres were frequently equivalent in control and immunoglobulin-treated groups.
Key Words: Myocarditis coxsackievirus B3 autoimmunity immunoglobulin therapy anti-idiotypes mouse
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