Abstract |
The current experiments use the Friend retrovirus model to demonstrate that vaccine-primed B cells are essential for sterilizing immunity, and the results indicate that the requisite function of these cells is the production of virus- neutralizing antibodies rather than priming or reactivation of T cells. B cell-deficient mice were poorly protected by vaccination, but adoptive transfer experiments showed that the T cells from B cell-deficient mice were primed as well as those from wild-type mice. Furthermore, passive transfer of virus- neutralizing antibodies completely compensated for B cell deficiency. The presence of virus- neutralizing antibodies at the time of infection was crucial for vaccine efficacy. Interestingly, virus- neutralizing antibodies worked synergistically with vaccine-primed T cells to provide a level of protection many orders of magnitude greater than either antibodies or immune T cells alone. Nonneutralizing antibodies also contributed to protection and acted cooperatively with neutralizing antibodies to reduce infection levels. These results emphasize the importance of inducing both T cell responses and virus- neutralizing antibody responses for effective retroviral vaccine protection.
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Authors | Ronald J Messer, Ulf Dittmer, Karin E Peterson, Kim J Hasenkrug |
Journal | Proceedings of the National Academy of Sciences of the United States of America
(Proc Natl Acad Sci U S A)
Vol. 101
Issue 33
Pg. 12260-5
(Aug 17 2004)
ISSN: 0027-8424 [Print] United States |
PMID | 15297622
(Publication Type: Journal Article)
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Chemical References |
- Antibodies, Viral
- Viral Vaccines
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Topics |
- Adoptive Transfer
- Animals
- Antibodies, Viral
- B-Lymphocytes
(immunology)
- Female
- Friend murine leukemia virus
(immunology, pathogenicity)
- Leukemia, Experimental
(immunology, prevention & control)
- Mice
- Mice, Inbred C57BL
- Neutralization Tests
- Retroviridae Infections
(immunology, prevention & control)
- T-Lymphocytes
(immunology)
- Tumor Virus Infections
(immunology, prevention & control)
- Viral Vaccines
(pharmacology)
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