The major genetic determinants of HIV-1 control affect HLA class I peptide presentation.
Data(s) |
2010
|
---|---|
Resumo |
Infectious and inflammatory diseases have repeatedly shown strong genetic associations within the major histocompatibility complex (MHC); however, the basis for these associations remains elusive. To define host genetic effects on the outcome of a chronic viral infection, we performed genome-wide association analysis in a multiethnic cohort of HIV-1 controllers and progressors, and we analyzed the effects of individual amino acids within the classical human leukocyte antigen (HLA) proteins. We identified >300 genome-wide significant single-nucleotide polymorphisms (SNPs) within the MHC and none elsewhere. Specific amino acids in the HLA-B peptide binding groove, as well as an independent HLA-C effect, explain the SNP associations and reconcile both protective and risk HLA alleles. These results implicate the nature of the HLA-viral peptide interaction as the major factor modulating durable control of HIV infection. |
Identificador |
http://serval.unil.ch/?id=serval:BIB_7DB03A4B1733 isbn:1095-9203 (Electronic) pmid:21051598 doi:10.1126/science.1195271 isiid:000285153500069 |
Idioma(s) |
en |
Fonte |
Science (new York, N.y.), vol. 330, no. 6010, pp. 1551-1557 |
Palavras-Chave | #African Americans/genetics; Alleles; Amino Acids/physiology; Antigen Presentation; CD8-Positive T-Lymphocytes/immunology; Cohort Studies; Disease Progression; European Continental Ancestry Group/genetics; Genes, MHC Class I; Genome-Wide Association Study; HIV Antigens/immunology; HIV Infections/ethnology; HIV Infections/genetics; HIV Long-Term Survivors; HIV-1/immunology; HLA-A Antigens/chemistry; HLA-A Antigens/genetics; HLA-B Antigens/chemistry; HLA-B Antigens/genetics; HLA-C Antigens/chemistry; HLA-C Antigens/genetics; Haplotypes; Hispanic Americans/genetics; Humans; Immunity, Innate; Logistic Models; Models, Molecular; Polymorphism, Single Nucleotide; Protein Conformation; Viral Load |
Tipo |
info:eu-repo/semantics/article article |