TY - JOUR KW - Adolescent KW - Adult KW - Aged KW - Child KW - Child, Preschool KW - Gene Frequency KW - Genetic Predisposition to Disease KW - genotype KW - Histocompatibility Antigens Class I KW - Humans KW - India KW - Infant KW - leprosy KW - Middle Aged KW - Polymorphism, Single Nucleotide KW - Vietnam KW - Young Adult AU - Alter A AU - Huong NT AU - Singh M AU - Orlova M AU - Van Thuc N AU - Katoch K AU - Gao X AU - Thai VH AU - Ba NN AU - Carrington M AU - Abel L AU - Mehra N AU - Alcaïs A AU - Schurr E AB -

Experimental evidence suggested the existence of unidentified leprosy susceptibility loci in the human leukocyte antigen (HLA) complex. To identify such genetic risk factors, a high-density association scan of a 1.9-mega-base (Mb) region in the HLA complex was performed. Among 682 single-nucleotide polymorphisms (SNPs), 59 were associated with leprosy (P <.01) in 198 Vietnamese single-case leprosy families. Genotyping of these SNPs in an independent sample of 292 Vietnamese single-case leprosy families replicated the association of 12 SNPs (P <.01). Multivariate analysis of these 12 SNPs showed that the association information could be captured by 2 intergenic HLA class I region SNPs (P = 9.4 × 10⁻⁹)-rs2394885 and rs2922997 (marginal multivariate P = 2.1 × 10⁻⁷ and P = .0016, respectively). SNP rs2394885 tagged the HLA-C*15:05 allele in the Vietnamese population. The identical associations were validated in a third sample of 364 patients with leprosy and 371 control subjects from North India. These results implicated class I alleles in leprosy pathogenesis.

BT - The Journal of infectious diseases C1 - http://www.ncbi.nlm.nih.gov/pubmed/21459816?dopt=Abstract CN - ALTER 2011 DA - 2011 May 01 DO - 10.1093/infdis/jir024 IS - 9 J2 - J. Infect. Dis. LA - eng N2 -

Experimental evidence suggested the existence of unidentified leprosy susceptibility loci in the human leukocyte antigen (HLA) complex. To identify such genetic risk factors, a high-density association scan of a 1.9-mega-base (Mb) region in the HLA complex was performed. Among 682 single-nucleotide polymorphisms (SNPs), 59 were associated with leprosy (P <.01) in 198 Vietnamese single-case leprosy families. Genotyping of these SNPs in an independent sample of 292 Vietnamese single-case leprosy families replicated the association of 12 SNPs (P <.01). Multivariate analysis of these 12 SNPs showed that the association information could be captured by 2 intergenic HLA class I region SNPs (P = 9.4 × 10⁻⁹)-rs2394885 and rs2922997 (marginal multivariate P = 2.1 × 10⁻⁷ and P = .0016, respectively). SNP rs2394885 tagged the HLA-C*15:05 allele in the Vietnamese population. The identical associations were validated in a third sample of 364 patients with leprosy and 371 control subjects from North India. These results implicated class I alleles in leprosy pathogenesis.

PY - 2011 SP - 1274 EP - 81 T2 - The Journal of infectious diseases TI - Human leukocyte antigen class I region single-nucleotide polymorphisms are associated with leprosy susceptibility in Vietnam and India. UR - http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3069725/pdf/jir024.pdf VL - 203 SN - 1537-6613 ER -