Differential Antigen Presentation Kinetics of CD8+T-Cell Epitopes Derived from the Same Viral Protein
| Autor: | Matthew R. Reynolds, Jonah B. Sacha, David I. Watkins, Anna K. Jonas, Andrea M. Weiler, Chungwon Chung, Taeko Soma, Thomas C. Friedrich, Shari M. Piaskowski, Wonhee Lee, Matthew B. Buechler, Lyle T. Wallace, Nancy A. Wilson |
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| Rok vydání: | 2008 |
| Předmět: |
Viral protein
Immunology Antigen presentation Antigen-Presenting Cells Epitopes T-Lymphocyte Gene Products gag Immunodominance CD8-Positive T-Lymphocytes Biology Major histocompatibility complex medicine.disease_cause Microbiology Epitope Virology medicine Animals Cytotoxic T cell Antigen-presenting cell Antigen Presentation Immunodominant Epitopes Histocompatibility Antigens Class I Molecular biology Kinetics Insect Science biology.protein Pathogenesis and Immunity Simian Immunodeficiency Virus CD8 |
| Zdroj: | Journal of Virology. 82:9293-9298 |
| ISSN: | 1098-5514 0022-538X |
| DOI: | 10.1128/jvi.00749-08 |
| Popis: | The kinetics of peptide presentation by major histocompatibility complex class I (MHC-I) molecules may contribute to the efficacy of CD8+T cells. Whether all CD8+T-cell epitopes from a protein are presented by the same MHC-I molecule with similar kinetics is unknown. Here we show that CD8+T-cell epitopes derived from SIVmac239 Gag are presented with markedly different kinetics. We demonstrate that this discrepancy in presentation is not related to immunodominance but instead is due to differential requirements for epitope generation. These results illustrate that significant differences in presentation kinetics can exist among CD8+T-cell epitopes derived from the same viral protein. |
| Databáze: | OpenAIRE |
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