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  • 1
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    Cytomegalovirus vectors violate CD8+ T cell epitope recognition paradigms (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-05-25
    Description: CD8(+) T cell responses focus on a small fraction of pathogen- or vaccine-encoded peptides, and for some pathogens, these restricted recognition hierarchies limit the effectiveness of antipathogen immunity. We found that simian immunodeficiency virus (SIV) protein-expressing rhesus cytomegalovirus (RhCMV) vectors elicit SIV-specific CD8(+) T cells that recognize unusual, diverse, and highly promiscuous epitopes, including dominant responses to epitopes restricted by class II major histocompatibility complex (MHC) molecules. Induction of canonical SIV epitope-specific CD8(+) T cell responses is suppressed by the RhCMV-encoded Rh189 gene (corresponding to human CMV US11), and the promiscuous MHC class I- and class II-restricted CD8(+) T cell responses occur only in the absence of the Rh157.5, Rh157.4, and Rh157.6 (human CMV UL128, UL130, and UL131) genes. Thus, CMV vectors can be genetically programmed to achieve distinct patterns of CD8(+) T cell epitope recognition.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3816976/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3816976/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hansen, Scott G -- Sacha, Jonah B -- Hughes, Colette M -- Ford, Julia C -- Burwitz, Benjamin J -- Scholz, Isabel -- Gilbride, Roxanne M -- Lewis, Matthew S -- Gilliam, Awbrey N -- Ventura, Abigail B -- Malouli, Daniel -- Xu, Guangwu -- Richards, Rebecca -- Whizin, Nathan -- Reed, Jason S -- Hammond, Katherine B -- Fischer, Miranda -- Turner, John M -- Legasse, Alfred W -- Axthelm, Michael K -- Edlefsen, Paul T -- Nelson, Jay A -- Lifson, Jeffrey D -- Fruh, Klaus -- Picker, Louis J -- P01 AI094417/AI/NIAID NIH HHS/ -- P51 OD 011092/OD/NIH HHS/ -- R01 AI059457/AI/NIAID NIH HHS/ -- R01 AI060392/AI/NIAID NIH HHS/ -- U24 OD010850/OD/NIH HHS/ -- New York, N.Y. -- Science. 2013 May 24;340(6135):1237874. doi: 10.1126/science.1237874.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Vaccine and Gene Therapy Institute and Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR 97006, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23704576" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; CD8-Positive T-Lymphocytes/*immunology ; Cytokines/immunology ; Cytomegalovirus/genetics/*immunology ; Epitopes, T-Lymphocyte/*immunology ; Female ; Genetic Vectors/genetics/*immunology ; Histocompatibility Antigens Class II/immunology ; Humans ; Macaca mulatta ; Male ; Membrane Glycoproteins/genetics ; SAIDS Vaccines/administration & dosage/*immunology ; Viral Envelope Proteins/genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Evasion of CD8+ T cells is critical for superinfection by cytomegalovirus (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-04-03
    Description: Cytomegalovirus (CMV) can superinfect persistently infected hosts despite CMV-specific humoral and cellular immunity; however, how it does so remains undefined. We have demonstrated that superinfection of rhesus CMV-infected rhesus macaques (RM) requires evasion of CD8+ T cell immunity by virally encoded inhibitors of major histocompatibility complex class I (MHC-I) antigen presentation, particularly the homologs of human CMV US2, 3, 6, and 11. In contrast, MHC-I interference was dispensable for primary infection of RM, or for the establishment of a persistent secondary infection in CMV-infected RM transiently depleted of CD8+ lymphocytes. These findings demonstrate that US2-11 glycoproteins promote evasion of CD8+ T cells in vivo, thus supporting viral replication and dissemination during superinfection, a process that complicates the development of preventive CMV vaccines but that can be exploited for CMV-based vector development.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2883175/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2883175/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hansen, Scott G -- Powers, Colin J -- Richards, Rebecca -- Ventura, Abigail B -- Ford, Julia C -- Siess, Don -- Axthelm, Michael K -- Nelson, Jay A -- Jarvis, Michael A -- Picker, Louis J -- Fruh, Klaus -- AI040101/AI/NIAID NIH HHS/ -- P51 RR000163/RR/NCRR NIH HHS/ -- P51 RR000163-460222/RR/NCRR NIH HHS/ -- P51 RR000163-486829/RR/NCRR NIH HHS/ -- P51 RR000163-496081/RR/NCRR NIH HHS/ -- P51 RR000163-508648/RR/NCRR NIH HHS/ -- R01 AI021640/AI/NIAID NIH HHS/ -- R01 AI021640-26/AI/NIAID NIH HHS/ -- R01 AI059457/AI/NIAID NIH HHS/ -- R01 AI059457-01A2/AI/NIAID NIH HHS/ -- R01 AI059457-02/AI/NIAID NIH HHS/ -- R01 AI059457-03/AI/NIAID NIH HHS/ -- R01 AI059457-04/AI/NIAID NIH HHS/ -- R01 AI059457-05/AI/NIAID NIH HHS/ -- R01 AI060392/AI/NIAID NIH HHS/ -- RR00163/RR/NCRR NIH HHS/ -- RR016001/RR/NCRR NIH HHS/ -- RR016025/RR/NCRR NIH HHS/ -- RR18107/RR/NCRR NIH HHS/ -- T32 AI007472/AI/NIAID NIH HHS/ -- T32 HL007781/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2010 Apr 2;328(5974):102-6. doi: 10.1126/science.1185350.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Vaccine and Gene Therapy Institute, Oregon Health and Science University, 505 Northwest 185th Avenue, Beaverton, OR 97006, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20360110" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigen Presentation ; CD4-Positive T-Lymphocytes/immunology ; CD8-Positive T-Lymphocytes/*immunology ; Cytomegalovirus/genetics/immunology/*physiology ; Cytomegalovirus Infections/*immunology/*virology ; Cytomegalovirus Vaccines/immunology ; Disease Models, Animal ; Gene Products, gag/immunology ; Genes, Viral ; Histocompatibility Antigens Class I/immunology ; *Immune Evasion ; Immunologic Factors/genetics/*physiology ; Macaca mulatta ; Male ; Simian Immunodeficiency Virus/genetics/immunology ; Superinfection ; Viral Proteins/genetics/*physiology ; Virus Replication ; Virus Shedding
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 3
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    Broadly targeted CD8(+) T cell responses restricted by major histocompatibility complex E (2016)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2016-01-23
    Description: Major histocompatibility complex E (MHC-E) is a highly conserved, ubiquitously expressed, nonclassical MHC class Ib molecule with limited polymorphism that is primarily involved in the regulation of natural killer (NK) cells. We found that vaccinating rhesus macaques with rhesus cytomegalovirus vectors in which genes Rh157.5 and Rh157.4 are deleted results in MHC-E-restricted presentation of highly varied peptide epitopes to CD8alphabeta(+) T cells, at ~4 distinct epitopes per 100 amino acids in all tested antigens. Computational structural analysis revealed that MHC-E provides heterogeneous chemical environments for diverse side-chain interactions within a stable, open binding groove. Because MHC-E is up-regulated to evade NK cell activity in cells infected with HIV, simian immunodeficiency virus, and other persistent viruses, MHC-E-restricted CD8(+) T cell responses have the potential to exploit pathogen immune-evasion adaptations, a capability that might endow these unconventional responses with superior efficacy.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4769032/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4769032/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hansen, Scott G -- Wu, Helen L -- Burwitz, Benjamin J -- Hughes, Colette M -- Hammond, Katherine B -- Ventura, Abigail B -- Reed, Jason S -- Gilbride, Roxanne M -- Ainslie, Emily -- Morrow, David W -- Ford, Julia C -- Selseth, Andrea N -- Pathak, Reesab -- Malouli, Daniel -- Legasse, Alfred W -- Axthelm, Michael K -- Nelson, Jay A -- Gillespie, Geraldine M -- Walters, Lucy C -- Brackenridge, Simon -- Sharpe, Hannah R -- Lopez, Cesar A -- Fruh, Klaus -- Korber, Bette T -- McMichael, Andrew J -- Gnanakaran, S -- Sacha, Jonah B -- Picker, Louis J -- HHSN272201100013C/AI/NIAID NIH HHS/ -- HHSN272201100013C/PHS HHS/ -- P01 AI094417/AI/NIAID NIH HHS/ -- P01-AI094417/AI/NIAID NIH HHS/ -- P50-GM065794/GM/NIGMS NIH HHS/ -- P51 OD011092/OD/NIH HHS/ -- P51-OD011092/OD/NIH HHS/ -- R01 AI059457/AI/NIAID NIH HHS/ -- R01 AI095113/AI/NIAID NIH HHS/ -- R01 AI117802/AI/NIAID NIH HHS/ -- R01 DE021291/DE/NIDCR NIH HHS/ -- R01-AI059457/AI/NIAID NIH HHS/ -- R01-AI095113/AI/NIAID NIH HHS/ -- R01-AI117802/AI/NIAID NIH HHS/ -- R01-DE021291/DE/NIDCR NIH HHS/ -- R37 AI054292/AI/NIAID NIH HHS/ -- R37-AI054292/AI/NIAID NIH HHS/ -- U24 OD010850/OD/NIH HHS/ -- U24-OD010850/OD/NIH HHS/ -- UM1 AI100645/AI/NIAID NIH HHS/ -- UM1-AI100645-01/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2016 Feb 12;351(6274):714-20. doi: 10.1126/science.aac9475. Epub 2016 Jan 21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Vaccine and Gene Therapy Institute and Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR 97006, USA. ; Nuffield Department of Medicine, University of Oxford, Oxford OX37FZ, UK. ; Theoretical Biology and Biophysics Group, Los Alamos National Laboratory, Los Alamos, NM 87545, USA. ; Theoretical Biology and Biophysics Group, Los Alamos National Laboratory, Los Alamos, NM 87545, USA. The New Mexico Consortium, Los Alamos, NM 87545, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26797147" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigen Presentation ; Antigenic Variation ; CD8-Positive T-Lymphocytes/*immunology ; Cytomegalovirus/genetics/*immunology ; Epitopes, T-Lymphocyte/chemistry/*immunology ; Genetic Vectors/genetics/immunology ; Histocompatibility Antigens Class I/chemistry/*immunology ; Host-Pathogen Interactions/immunology ; Immune Evasion ; Killer Cells, Natural/immunology ; Macaca mulatta ; Protein Structure, Secondary ; Simian Immunodeficiency Virus/*immunology ; Vaccination
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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