The Journal of infectious diseases · 2010
Multiple-cohort genetic association study reveals CXCR6 as a new chemokine receptor involved in long-term nonprogression to AIDS.
СтатьяПоддержка NIH: внешняя программаПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод в очереди
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Limou Sophie, Coulonges Cédric, Herbeck Joshua T, van Manen Daniëlle, An Ping, Le Clerc Sigrid, Delaneau Olivier, Diop Gora, Taing Lieng, Montes Matthieu, van't Wout Angélique B, Gottlieb Geoffrey S, Therwath Amu, Rouzioux Christine, Delfraissy Jean-François, Lelièvre Jean-Daniel, Lévy Yves, Hercberg Serge, Dina Christian, Phair John, Donfield Sharyne, Goedert James J, Buchbinder Susan, Estaquier Jérôme, Schächter François, Gut Ivo, Froguel Philippe, Mullins James I, Schuitemaker Hanneke, Winkler Cheryl, Zagury Jean-François
Аннотация
BACKGROUND: The compilation of previous genomewide association studies of AIDS shows a major polymorphism in the HCP5 gene associated with both control of the viral load and long-term nonprogression (LTNP) to AIDS.
METHODS: To look for genetic variants that affect LTNP without necessary control of the viral load, we reanalyzed the genomewide data of the unique LTNP Genomics of Resistance to Immunodeficiency Virus (GRIV) cohort by excluding "elite controller" patients, who were controlling the viral load at very low levels (<100 copies/mL).
RESULTS: The rs2234358 polymorphism in the CXCR6 gene was the strongest signal (P=2.5 x 10(-7); odds ratio, 1.85) obtained for the genomewide association study comparing the 186 GRIV LTNPs who were not elite controllers with 697 uninfected control subjects. This association was replicated in 3 additional independent European studies, reaching genomewide significance of P(combined)=9.7 x 10(-10). This association with LTNP is independent of the CCR2-CCR5 locus and the HCP5 polymorphisms.
CONCLUSIONS: The statistical significance, the replication, and the magnitude of the association demonstrate that CXCR6 is likely involved in the molecular etiology of AIDS and, in particular, in LTNP, emphasizing the power of extreme-phenotype cohorts. CXCR6 is a chemokine receptor that is known as a minor coreceptor in human immunodeficiency virus type 1 infection but could participate in disease progression through its role as a mediator of inflammation.
METHODS: To look for genetic variants that affect LTNP without necessary control of the viral load, we reanalyzed the genomewide data of the unique LTNP Genomics of Resistance to Immunodeficiency Virus (GRIV) cohort by excluding "elite controller" patients, who were controlling the viral load at very low levels (<100 copies/mL).
RESULTS: The rs2234358 polymorphism in the CXCR6 gene was the strongest signal (P=2.5 x 10(-7); odds ratio, 1.85) obtained for the genomewide association study comparing the 186 GRIV LTNPs who were not elite controllers with 697 uninfected control subjects. This association was replicated in 3 additional independent European studies, reaching genomewide significance of P(combined)=9.7 x 10(-10). This association with LTNP is independent of the CCR2-CCR5 locus and the HCP5 polymorphisms.
CONCLUSIONS: The statistical significance, the replication, and the magnitude of the association demonstrate that CXCR6 is likely involved in the molecular etiology of AIDS and, in particular, in LTNP, emphasizing the power of extreme-phenotype cohorts. CXCR6 is a chemokine receptor that is known as a minor coreceptor in human immunodeficiency virus type 1 infection but could participate in disease progression through its role as a mediator of inflammation.