Summary
The relationship between Epstein-Barr virus (EBV) and the host is profoundly disturbed by allogeneic bone marrow transplantation (BMT) because EBV resides in the recipient's hematopoietic system, which has to be destroyed in the majority of cases, and in the donor's hematopoietic system, i.e., the marrow graft. We have shown that EBV may be eradicated from some BMT recipients and that the virus may be transferred with the marrow graft. During the immediate post-transplant period oropharyngeal EBV excretion may occur which, by infecting passing B lymphocytes, may act as co-factor for acute graft-versus-host disease and help the virus to survive, despite the temporary depletion of its reservoir. The coexistence of totally different EBV strains in BMT recipients but not in healthy, untransfused controls, suggests that superinfection may by possible in case of immunodeficiency; alternatively, transfer of the virus by the reservoir itself (the B lymphocytes) might be the only effective route for superinfection. The generation of ‘variant’ strains during viral replication may form the basis of the vast polymorphism between wild-type EBV isolates in the population.
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This study was supported by the Swedish Cancer Society, the Bekales Foundation (Vaduz, Liechtenstein), the Ank van Vlissingen Foundation (Nijmegen, the Netherlands) and by the PHS grant 5R01, CA 30264-08 awarded by the National Cancer Institute. J.W. Gratama is a fellow of the Royal Dutch Academy of Arts and Sciences.
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Gratama, J.W., Oosterveer, M.A.P., Lepoutre, J. et al. Epstein-Barr virus infection in allogeneic marrow grafting: lessons for transplant physicians and virologists. Ann Hematol 64 (Suppl 1), A162–A165 (1992). https://doi.org/10.1007/BF01715373
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DOI: https://doi.org/10.1007/BF01715373