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Ann Thorac Surg 2000;69:1867-1872
© 2000 The Society of Thoracic Surgeons

Original articles: Cardiovascular

Immunochemical analysis of polyspecific antibodies in patients exposed to bovine fibrin sealant

Dana R. Fastenau, MSa, John A. McIntyre, PhDa

a Center for Reproduction and Transplantation Immunology, Methodist Hospital, Indianapolis, Indiana, USA

Address reprint requests to Dr McIntyre, HLA-Vascular Biology Laboratory, St. Francis Hospital, 1600 Albany St, Beech Grove, IN 46107
e-mail: jmcintyre{at}iquest.net

Background. Patients exposed to bovine thrombin preparations in fibrin sealant often develop antibodies to bovine coagulation proteins, which cause significant bleeding by cross-reacting with human homologues. Recipients of our left ventricular assist system (LVAS) routinely are exposed to fibrin sealant; therefore, we determined whether they developed antibodies.

Methods. We compared sera from 6 LVAS recipients exposed to fibrin sealant (THROMBOGEN, Johnson & Johnson, Arlington, TX ) during LVAS placement to that of 5 nonexposed LVAS recipients. Pre-LVAS and weekly post-LVAS sera were tested for immunoglobulin (Ig)G, IgA, and IgM reactivity to THROMBOGEN by enzyme-linked immunosorbent assay. Peak IgG and IgA reactive sera were characterized by immunoblotting.

Results. All patients exposed to THROMBOGEN developed antibodies: 5 developed IgG, 4 IgA, and 3 IgM. In contrast, nonexposed patients did not develop antibodies. Only some antibody reactivity was contributed by antithrombin or antifactor V antibodies. Silver stain sodium dodecyl sulfate-polyacrylamide gel electrophoresis analyses of THROMBOGEN showed more than 18 bands, many of which were recognized in Western blot by positive patient sera.

Conclusions. We found both IgG and IgA polyspecific antibody responses in patients exposed to bovine thrombin preparations.




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[Abstract] [Full Text] [PDF]


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