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journal id: "aids"
| Authors||D. van Manen, N.A. Kootstra, B. Boeser-Nunnink, M.A. Handulle, A.B. van 't Wout, H. Schuitemaker|
|Title||Association of HLA-C and HCP5 gene regions with the clinical course of HIV-1 infection|
|Abstract||Background: Recently, a genome-wide association analysis revealed single-nucleotide polymorphisms (SNPs) in the gene regions of HLA-C and HCP5 to be associated with viral load at set point and SNPs in the RNF39/ZNRD1 gene region to be associated with HIV-1 disease course. Methods: We Studied whether the association of these SNPs with viral load at set point could be replicated and whether these SNPs also associated with other clinical outcomes of HIV-1 infection in 335 HIV-1-infected homosexual participants from the Amsterdam Cohort Studies on HIV infection and AIDS (ACS). Results: Significant associations between the minor allele variants of SNPs HLA-C rs9264942 and HCP5 rs2395029 and a lower viral load at set point could be replicated in the ACS. Moreover, these SNPs were significantly associated with delayed progression to AIDS, AIDS-related death, and a CD4(+) T-cell Count below 400 cells/mu l. Both minor allele variants were independent predictors of disease progression, also when a CCR5 Delta 32 heterozygous genotype was included in the analysis. However, predictive value was not independent from viral load and CD4(+) T-cell count at set point. The SNPs in the RNF39/ZNRD1 gene region were associated with set point CD4(+) T-cell count but riot with disease Course in the ACS. Conclusion: The minor allele variants of SNPs in the HLA-C and HCP5 gene regions are also in the ACS associated with a lower viral load at set point and additionally with delayed HIV-1 disease progression. The association of these SNPs with the relatively early Course of infection may help unravel their mode of action. (C) 2009 Wolters Kluwer Health vertical bar Lippincott Williams & Wilkins|
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