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| Content Provider | PubMed Central |
|---|---|
| Author | Peterson, Karin E. Stromnes, Ingunn Messer, Ron Hasenkrug, Kim Chesebro, Bruce |
| Copyright Year | 2002 |
| Abstract | CD4+ Th1 responses to virus infections are often necessary for the development and maintenance of virus-specific CD8+ T-cell responses. However, in the present study with Friend murine retrovirus (FV), the reverse was also found to be true. In the absence of a responder H-2b allele at major histocompatibility complex (MHC) class II loci, a single H-2Db MHC class I allele was sufficient for the development of a CD4+ Th1 response to FV. This effect of H-2Db on CD4+ T-cell responses was dependent on CD8+ T cells, as demonstrated by depletion studies. A direct effect of CD8+ T-cell help in the development of CD4+ Th1 responses to FV was also shown in vaccine studies. Vaccination of nonresponder H-2a/a mice induced FV-specific responses of H-2Dd -restricted CD8+ cytotoxic T lymphocytes (CTL). Adoptive transfer of vaccine-primed CD8+ T cells to naive H-2a/a mice prior to infection resulted in the generation of FV-specific CD4+ Th1 responses. This novel helper effect of CD8+ T cells could be an important mechanism in the development of CD4+ Th1 responses following vaccinations that induce CD8+ CTL responses. The ability of MHC class I genes to facilitate CD4+ Th1 development could also be considerable evolutionary advantage by allowing a wider variety of MHC genotypes to generate protective immune responses against intracellular pathogens. |
| Related Links | http://dx.doi.org/10.1128/jvi.76.16.7942-7948.2002 |
| Ending Page | 7948 |
| Page Count | 7 |
| Starting Page | 7942 |
| File Format | |
| ISSN | 0022538X |
| e-ISSN | 10985514 |
| Journal | Journal of Virology |
| Issue Number | 16 |
| Volume Number | 76 |
| Language | English |
| Publisher | American Society for Microbiology |
| Publisher Date | 2002-08-15 |
| Access Restriction | Open |
| Rights Holder | American Society for Microbiology |
| Subject Keyword | Immunology Virology Research in Higher Education |
| Content Type | Text |
| Resource Type | Article |
| Subject | Virology Immunology Microbiology Insect Science |
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