Quantification of the number of cytotoxic T cells specific for an immunodominant HCV-specific CTL epitope primed by DNA immunization
Identifieur interne : 003646 ( Main/Curation ); précédent : 003645; suivant : 003647Quantification of the number of cytotoxic T cells specific for an immunodominant HCV-specific CTL epitope primed by DNA immunization
Auteurs : Alexander Y. Lee [États-Unis] ; Noelle K. Polakos [États-Unis] ; Gillis R. Otten [États-Unis] ; Jeffrey B. Ulmer [États-Unis] ; Michael Houghton [États-Unis] ; Xavier Paliard [États-Unis]Source :
- Vaccine [ 0264-410X ] ; 2000.
English descriptors
- Teeft :
- Acute hepatitis, Assay, Cell epitopes, Cell repertoire, Cytometry, Cytotoxic, Cytotoxic activity, Days post booster, Elsevier science, Epitope, Gene expression, Hepatitis, Immune, Immune response, Immune responses, Immunization, Important role, Individual mice, Individual peptides, Intracellular, Intracellular staining, Mouse, Natural history, Ns5a, Ns5b, Peptide, Peptide pool, Plasmid, Release assay, Restimulated, Restimulation, Spleen, Spleen cells, Svbalb target cells, Target cells, Unpublished observations, Vaccine, Vaccine strategies, Viral, Viral infection, Virol shirai, Virus infection.
Abstract
Abstract: Priming of strong cellular immune responses to hepatitis C (HCV) is thought to be important for eradication of infection. Although productive infection of HCV occurs only reproducibly in humans and chimpanzees, definition of HCV-specific T cell epitopes in mice is necessary to screen efficiently HCV vaccine strategies for their ability to prime cellular immune responses. Out of seven strains of mice screened for immunodominant CTL epitopes against HCV-1a Core, E2, NS5a and NS5b, only one epitope (p214K9) in only one mouse strain was identified. Enumeration of p214K9-specific CD8+ cells by flow cytometry revealed that the number of epitope specific CTL primed by ‘naked’ DNA immunization was lower than that reported during viral infection. The p214K9 epitope described here, combined with analysis of CTL responses by flow cytometry, should be instrumental in ranking various HCV vaccine strategies for their ability to prime CTL responses.
Url:
DOI: 10.1016/S0264-410X(99)00486-7
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Although productive infection of HCV occurs only reproducibly in humans and chimpanzees, definition of HCV-specific T cell epitopes in mice is necessary to screen efficiently HCV vaccine strategies for their ability to prime cellular immune responses. Out of seven strains of mice screened for immunodominant CTL epitopes against HCV-1a Core, E2, NS5a and NS5b, only one epitope (p214K9) in only one mouse strain was identified. Enumeration of p214K9-specific CD8+ cells by flow cytometry revealed that the number of epitope specific CTL primed by ‘naked’ DNA immunization was lower than that reported during viral infection. The p214K9 epitope described here, combined with analysis of CTL responses by flow cytometry, should be instrumental in ranking various HCV vaccine strategies for their ability to prime CTL responses.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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