학술논문

Fine mapping of Xq28: both MECP2 and IRAK1 contribute to risk for systemic lupus erythematosus in multiple ancestral groups
Document Type
article
Source
Annals of the Rheumatic Diseases. 72(3)
Subject
Human Genome
Autoimmune Disease
Lupus
Genetics
Clinical Research
2.1 Biological and endogenous factors
Aetiology
Inflammatory and immune system
Base Sequence
Chromosome Mapping
Chromosomes
Human
X
Genetic Predisposition to Disease
Genotype
Haplotypes
Humans
Interleukin-1 Receptor-Associated Kinases
Lupus Erythematosus
Systemic
Methyl-CpG-Binding Protein 2
Molecular Sequence Data
Polymorphism
Single Nucleotide
Racial Groups
Real-Time Polymerase Chain Reaction
Risk Factors
Argentine Collaborative Group
BIOLUPUS network
Clinical Sciences
Immunology
Public Health and Health Services
Arthritis & Rheumatology
Language
Abstract
ObjectivesThe Xq28 region containing IRAK1 and MECP2 has been identified as a risk locus for systemic lupus erythematosus (SLE) in previous genetic association studies. However, due to the strong linkage disequilibrium between IRAK1 and MECP2, it remains unclear which gene is affected by the underlying causal variant(s) conferring risk of SLE.MethodsWe fine-mapped ≥136 SNPs in a ∼227 kb region on Xq28, containing IRAK1, MECP2 and seven adjacent genes (L1CAM, AVPR2, ARHGAP4, NAA10, RENBP, HCFC1 and TMEM187), for association with SLE in 15 783 case-control subjects derived from four different ancestral groups.ResultsMultiple SNPs showed strong association with SLE in European Americans, Asians and Hispanics at p