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Shiga Y, Nishiguchi KM, Kawai Y, Kojima K, Sato K, Fujita K, Takahashi M, Omodaka K, Araie M, Kashiwagi K, Aihara M, Iwata T, Mabuchi F, Takamoto M, Ozaki M, Kawase K, Fuse N, Yamamoto M, Yasuda J, Nagasaki M, Nakazawa T. Genetic analysis of Japanese primary open-angle glaucoma patients and clinical characterization of risk alleles near CDKN2B-AS1, SIX6 and GAS7. PLoS One 2017; 12:e0186678. [PMID: 29261660 PMCID: PMC5737967 DOI: 10.1371/journal.pone.0186678] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2017] [Accepted: 10/05/2017] [Indexed: 12/26/2022] Open
Abstract
PURPOSE To test the genetic association between Japanese patients with primary open-angle glaucoma (POAG) and the previously reported POAG susceptibility loci and to perform genotype-phenotype analysis. METHODS Genetic associations for 27 SNPs from 16 loci previously linked to POAG were assessed using genome-wide SNP data of the primary cohort (565 Japanese POAG patients and 1,104 controls). Reproducibility of the assessment was tested in 607 POAG cases and 455 controls (second cohort) with a targeted genotyping approach. For POAG-associated variants, a genotype-phenotype correlation study (additive, dominant, recessive model) was performed using the objective clinical data derived from 598 eyes of 598 POAG patients. RESULTS Among 27 SNPs from 16 loci previously linked to POAG, genotypes for total of 20 SNPs in 13 loci were available for targeted association study. Among 8 SNPs in 3 loci that showed at least nominal association (P < 5.00E-02) in the primary cohort, a representative SNP for each loci (rs2157719 for CDKN2B-AS1, rs33912345 for SIX6, and rs9913911 for GAS7) were selected. For these SNPs the association was found significant in both the second cohort analysis and meta-analysis. The genotype-phenotype analysis revealed significant correlations between CDKN2B-AS1 (rs2157719) and decreased intraocular pressure (β = -6.89 mmHg, P = 1.70E-04; dominant model) after multiple corrections. In addition, nominal correlation was observed between CDKN2B-AS1 (rs2157719) and optic nerve head blood flow (β = -0.54 and -0.67 arbitrary units (AU), P = 2.00E-02 and 1.39E-02), between SIX6 (rs33912345) and decreased total peripapillary retinal nerve fiber layer thickness (β = -2.16 and -2.82 μm, P = 4.68E-02 and 2.40E-02, additive and recessive model, respectively) and increased optic nerve head blood flow (β = 0.44 AU, P = 2.20E-02; additive model) and between GAS7 (rs9913911) and increased cup volume (β = 0.03 mm3, P = 4.60E-02) and mean cup depth (β = 0.03 mm3, P = 4.11E-02; additive model) and decreased pattern standard deviation (β = -0.87 dB, P = 2.44E-02; dominant model). CONCLUSION The association between SNPs near GAS7 and POAG was found in Japanese patients for the first time. Clinical characterization of the risk variants is an important step toward understanding the pathology of the disease and optimizing treatment of patients with POAG.
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Affiliation(s)
- Yukihiro Shiga
- Department of Ophthalmology, Tohoku University Graduate School of Medicine, Miyagi, Japan
| | - Koji M. Nishiguchi
- Department of Advanced Ophthalmic Medicine, Tohoku University Graduate School of Medicine, Miyagi, Japan
| | - Yosuke Kawai
- Department of Integrative Genomics, Tohoku Medical Megabank Organization, Tohoku University, Miyagi, Japan
- Graduate School of Medicine, Tohoku University, Miyagi, Japan
| | - Kaname Kojima
- Department of Integrative Genomics, Tohoku Medical Megabank Organization, Tohoku University, Miyagi, Japan
- Graduate School of Medicine, Tohoku University, Miyagi, Japan
- Department of Cohort Genome Information Analysis, Tohoku Medical Megabank Organization, Tohoku University, Miyagi, Japan
| | - Kota Sato
- Department of Ophthalmology, Tohoku University Graduate School of Medicine, Miyagi, Japan
- Department of Ophthalmic imaging and information analytics, Tohoku University Graduate School of Medicine, Miyagi, Japan
| | - Kosuke Fujita
- Department of Ophthalmology, Tohoku University Graduate School of Medicine, Miyagi, Japan
- Department of Retinal Disease Control, Tohoku University Graduate School of Medicine, Miyagi, Japan
| | - Mai Takahashi
- Department of Ophthalmology, Tohoku University Graduate School of Medicine, Miyagi, Japan
| | - Kazuko Omodaka
- Department of Ophthalmology, Tohoku University Graduate School of Medicine, Miyagi, Japan
- Department of Ophthalmic imaging and information analytics, Tohoku University Graduate School of Medicine, Miyagi, Japan
| | - Makoto Araie
- Kanto Central Hospital of The Mutual Aid Association of Public School Teachers, Tokyo, Japan
| | - Kenji Kashiwagi
- Department of Ophthalmology, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Makoto Aihara
- Department of Ophthalmology, University of Tokyo School of Medicine, Tokyo, Japan
| | - Takeshi Iwata
- Division of Molecular and Cellular Biology, National Institute of Sensory Organs, National Hospital Organization Tokyo Medical Center, Tokyo, Japan
| | - Fumihiko Mabuchi
- Department of Ophthalmology, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Mitsuko Takamoto
- Department of Ophthalmology, University of Tokyo School of Medicine, Tokyo, Japan
| | | | | | - Nobuo Fuse
- Department of Integrative Genomics, Tohoku Medical Megabank Organization, Tohoku University, Miyagi, Japan
- Graduate School of Medicine, Tohoku University, Miyagi, Japan
| | - Masayuki Yamamoto
- Department of Integrative Genomics, Tohoku Medical Megabank Organization, Tohoku University, Miyagi, Japan
- Medical Biochemistry, Tohoku University Graduate School of Medicine, Miyagi, Japan
| | - Jun Yasuda
- Department of Integrative Genomics, Tohoku Medical Megabank Organization, Tohoku University, Miyagi, Japan
- Graduate School of Medicine, Tohoku University, Miyagi, Japan
| | - Masao Nagasaki
- Department of Integrative Genomics, Tohoku Medical Megabank Organization, Tohoku University, Miyagi, Japan
- Graduate School of Medicine, Tohoku University, Miyagi, Japan
- Department of Cohort Genome Information Analysis, Tohoku Medical Megabank Organization, Tohoku University, Miyagi, Japan
- Graduate School of Information Sciences, Tohoku University, Miyagi, Japan
| | - Toru Nakazawa
- Department of Ophthalmology, Tohoku University Graduate School of Medicine, Miyagi, Japan
- Department of Advanced Ophthalmic Medicine, Tohoku University Graduate School of Medicine, Miyagi, Japan
- Department of Retinal Disease Control, Tohoku University Graduate School of Medicine, Miyagi, Japan
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