Document Detail


AIDS-protective HLA-B*27/B*57 and chimpanzee MHC class I molecules target analogous conserved areas of HIV-1/SIVcpz.
MedLine Citation:
PMID:  20696916     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
In the absence of treatment, most HIV-1-infected humans develop AIDS. However, a minority are long-term nonprogressors, and resistance is associated with the presence of particular HLA-B*27/B*57 molecules. In contrast, most HIV-1-infected chimpanzees do not contract AIDS. In comparison with humans, chimpanzees experienced an ancient selective sweep affecting the MHC class I repertoire. We have determined the peptide-binding properties of frequent chimpanzee MHC class I molecules, and show that, like HLA-B*27/B*57, they target similar conserved areas of HIV-1/SIV(cpz). In addition, many animals appear to possess multiple molecules targeting various conserved areas of the HIV-1/SIV(cpz) Gag protein, a quantitative aspect of the immune response that may further minimize the chance of viral escape. The functional characteristics of the contemporary chimpanzee MHC repertoire suggest that the selective sweep was caused by a lentiviral pandemic.
Authors:
Natasja G de Groot; Corrine M C Heijmans; Yvonne M Zoet; Arnoud H de Ru; Frank A Verreck; Peter A van Veelen; Jan W Drijfhout; Gaby G M Doxiadis; Edmond J Remarque; Ilias I N Doxiadis; Jon J van Rood; Frits Koning; Ronald E Bontrop
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-08-09
Journal Detail:
Title:  Proceedings of the National Academy of Sciences of the United States of America     Volume:  107     ISSN:  1091-6490     ISO Abbreviation:  Proc. Natl. Acad. Sci. U.S.A.     Publication Date:  2010 Aug 
Date Detail:
Created Date:  2010-08-25     Completed Date:  2010-09-23     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7505876     Medline TA:  Proc Natl Acad Sci U S A     Country:  United States    
Other Details:
Languages:  eng     Pagination:  15175-80     Citation Subset:  IM    
Affiliation:
Department of Comparative Genetics and Refinement, Biomedical Primate Research Centre, 2288 GJ Rijswijk, The Netherlands.
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MeSH Terms
Descriptor/Qualifier:
Acquired Immunodeficiency Syndrome / genetics,  immunology,  prevention & control*
Amino Acid Sequence
Animals
Cell Line
Conserved Sequence
Gene Products, gag / genetics,  metabolism
Genes, MHC Class I
HIV Long-Term Survivors
HIV-1 / genetics*,  immunology*
HLA-B Antigens / genetics*
HLA-B27 Antigen / genetics*
Histocompatibility Antigens Class I / genetics*
Humans
Molecular Sequence Data
Pan troglodytes / genetics*,  immunology*
Protein Binding
Simian immunodeficiency virus / genetics*,  immunology*
Species Specificity
T-Lymphocytes, Cytotoxic / immunology
Chemical
Reg. No./Substance:
0/Gene Products, gag; 0/HLA-B Antigens; 0/HLA-B27 Antigen; 0/HLA-B57; 0/Histocompatibility Antigens Class I

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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