Influence of ROBO1 and RORA on Risk of Age-Related Macular Degeneration Reveals Genetically Distinct Phenotypes in Disease Pathophysiology

Gyungah Jun, Michael Nicolaou, Margaux A Morrison, Jacqueline Buros, Denise J Morgan, Monte J Radeke, Yoshihiro Yonekawa, Evangelia E Tsironi, Maria G Kotoula, Fani Zacharaki, Nissa Mollema, Yang Yuan, Joan W Miller, Neena B Haider, Gregory S Hageman, Ivana K Kim, Debra A Schaumberg, Lindsay A Farrer and Margaret M DeAngelis

PLOS ONE, 2011, vol. 6, issue 10, 1-11

Abstract: ROBO1 is a strong candidate gene for age-related macular degeneration (AMD) based upon its location under a linkage peak on chromosome 3p12, its expression pattern, and its purported function in a pathway that includes RORA, a gene previously associated with risk for neovascular AMD. Previously, we observed that expression of ROBO1 and RORA is down-regulated among wet AMD cases, as compared to their unaffected siblings. Thus, we hypothesized that contribution of association signals in ROBO1, and interaction between these two genes may be important for both wet and dry AMD. We evaluated association of 19 single nucleotide polymorphisms (SNPs) in ROBO1 with wet and dry stages of AMD in a sibling cohort and a Greek case-control cohort containing 491 wet AMD cases, 174 dry AMD cases and 411 controls. Association signals and interaction results were replicated in an independent prospective cohort (1070 controls, 164 wet AMD cases, 293 dry AMD cases). The most significantly associated ROBO1 SNPs were rs1387665 under an additive model (meta P = 0.028) for wet AMD and rs9309833 under a recessive model (meta P = 6×10−4) for dry AMD. Further analyses revealed interaction between ROBO1 rs9309833 and RORA rs8034864 for both wet and dry AMD (interaction P

Date: 2011
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0025775

DOI: 10.1371/journal.pone.0025775

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