Abstract
Characteristics of peripheral arterial disease (PAD) are the occlusion or stenosis of multiple vessel sites caused mainly by atherosclerosis and chronic lower limb ischemia. To identify PAD susceptible loci, we conducted a genome-wide association study (GWAS) with 785 cases and 3,383 controls in a Japanese population using 431,666 single nucleotide polymorphisms (SNP). After staged analyses including a total of 3,164 cases and 20,134 controls, we identified 3 novel PAD susceptibility loci at IPO5/RAP2A, EDNRA and HDAC9 with genome wide significance (combined P = 6.8 x 10-14, 5.3 x 10-9 and 8.8 x 10-8, respectively). Fine-mapping at the IPO5/RAP2A locus revealed that rs9584669 conferred risk of PAD. Luciferase assay showed that the risk allele at this locus reduced expression levels of IPO5. To our knowledge, these are the first genetic risk factors for PAD.
Publication types
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Comparative Study
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Research Support, Non-U.S. Gov't
MeSH terms
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Aged
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Aorta / cytology
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Aorta / metabolism
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Case-Control Studies
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Cells, Cultured
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Chromosome Mapping
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Female
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Genetic Loci
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Genetic Predisposition to Disease
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Genome-Wide Association Study*
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Histone Deacetylases / genetics*
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Humans
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Japan / epidemiology
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Luciferases / metabolism
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Male
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Middle Aged
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Myocytes, Smooth Muscle / cytology
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Myocytes, Smooth Muscle / metabolism
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Peripheral Arterial Disease / epidemiology
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Peripheral Arterial Disease / genetics*
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Polymorphism, Single Nucleotide / genetics*
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Receptor, Endothelin A / genetics*
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Repressor Proteins / genetics*
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Risk Factors
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beta Karyopherins / genetics*
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rap GTP-Binding Proteins / genetics*
Substances
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IPO5 protein, human
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Receptor, Endothelin A
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Repressor Proteins
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beta Karyopherins
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Luciferases
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HDAC9 protein, human
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Histone Deacetylases
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RAP2A protein, human
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rap GTP-Binding Proteins