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
