| |
|
|
|
|
|
|
|||
|
Blood, 1 November 2007, Vol. 110, No. 9, pp. 3472-3479. Prepublished online as a Blood First Edition Paper on July 26, 2007; DOI 10.1182/blood-2007-06-095414.
TRANSPLANTATION Protection from CMV infection in immunodeficient hosts by adoptive transfer of memory B cells1 Institute for Clinical and Molecular Virology, University Hospital Erlangen, 2 Institute for Biology, Chair of Genetics, Hematopoesis Unit, and 3 Nikolaus-Fiebiger-Center for Molecular Medicine, University Erlangen-Nuremberg, Erlangen, Germany; 4 Department of Histology and Embryology, Faculty of Medicine, University of Rijeka, Rijeka, Croatia; 5 Hannover Medical School, Hannover, Germany; and 6 University of Rochester Medical Center, Rochester, NY Severe disease associated with cytomegalovirus (CMV) infection is still a major problem in patients who undergo transplantation. Support of the patients' immune defense against the virus is a major goal in transplantation medicine. We have used the murine model of CMV (MCMV) to investigate the potential of a cell-based strategy to support the humoral antiviral immune response. Immunocompetent C57BL/6 mice were infected with MCMV, and memory B cells from the immune animals were adoptively transferred into T-cell– and B-cell–deficient RAG-1–/– mice. Following MCMV infection, a virus-specific IgG response developed within 4 to 7 days in the recipient animals. Concomitantly, a significant reduction in viral titers and DNA copies in several organs was observed. In addition, the memory B-cell transfer provided long-term protection from the lethal course of the infection that is invariably seen in immunodeficient animals. Transfer of memory B cells was also effective in protecting from an already ongoing viral infection, indicating a therapeutic potential of virus-specific memory B cells. T cells were not involved in this process. Our data provide evidence that a cell-based strategy to support the humoral immune response can be effective to combat infectious pathogens in severely immunodeficient hosts.
This article has been cited by other articles:
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Copyright © 2007 by American Society of Hematology Online ISSN: 1528-0020 | |||||||||