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Nature Research, Nature Genetics, 4(47), p. 387-392, 2015

DOI: 10.1038/ng.3226

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A common variant mapping to CACNA1A is associated with susceptibility to exfoliation syndrome

Journal article published in 2015 by Tin Aung, R. Rand Allingham, Mineo Ozaki, Satoko Nakano, Juan C. Zenteno, Tomasz Zarnowski, Takanori Mizoguchi, Yildirim Nilgün, Mohammad Pakravan, Leen Abu Safieh, Ya Xing Wang, Zheng Li ORCID, Susan Williams ORCID, Yildirim Nilguen, Daniela Paoli and other authors.
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Data provided by SHERPA/RoMEO

Abstract

Exfoliation syndrome (XFS) is the most common recognizable cause of open-angle glaucoma worldwide. To better understand the etiology of XFS, we conducted a genome-wide association study (GWAS) of 1,484 cases and 1,188 controls from Japan and followed up the most significant findings in a further 6,901 cases and 20,727 controls from 17 countries across 6 continents. We discovered a genome-wide significant association between a new locus (CACNA1A rs4926244) and increased susceptibility to XFS (odds ratio (OR) = 1.16, P = 3.36 × 10(-11)). Although we also confirmed overwhelming association at the LOXL1 locus, the key SNP marker (LOXL1 rs4886776) demonstrated allelic reversal depending on the ancestry group (Japanese: OR(A allele) = 9.87, P = 2.13 × 10(-217); non-Japanese: OR(A allele) = 0.49, P = 2.35 × 10(-31)). Our findings represent the first genetic locus outside of LOXL1 surpassing genome-wide significance for XFS and provide insight into the biology and pathogenesis of the disease.