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Mendelian randomization analysis identified genes pleiotropically associated with central corneal thickness
medRxiv - Ophthalmology Pub Date : 2021-03-02 , DOI: 10.1101/2021.02.27.21252574
Zhikun Yang , Jingyun Yang , Di Liu , Weihong Yu

Objective: To prioritize genes that were pleiotropically or potentially causally associated with central corneal thickness (CCT). Methods: We applied the summary data-based Mendelian randomization (SMR) method integrating summarized data of genome-wide association study (GWAS) on CCT and expression quantitative trait loci (eQTL) data to identify genes that were pleiotropically associated with CCT. We performed separate SMR analysis using CAGE eQTL data and GTEx eQTL data. SMR analysis were done for participants of European and East Asian ancestries, separately. Results: We identified multiple genes showing pleiotropic association with CCT in the participants of European ancestry. CLIC3 (ILMN_1796423; PSMR=4.15*10^-12), PTGDS (ILMN_1664464; PSMR=6.88*10^-9) and C9orf142 (ILMN_1761138; PSMR=8.09*10^-9) were the top three genes using the CAGE eQTL data, and RP11-458F8.4 (ENSG00000273142.1; PSMR=5.89*10^-9), LCNL1 (ENSG00000214402.6; PSMR=5.67*10^-8), and PTGDS (ENSG00000107317.7; PSMR=1.92*10^-7) were the top three genes using the GTEx eQTL data. No genes showed significantly pleiotropic association with CCT in the participants of East Asian ancestry after correction for multiple testing. Conclusion: We identified several genes pleiotropically associated with CCT, some of which represented novel genes influencing CCT. Our findings provided important leads to a better understanding of the genetic factors influencing CCT, and revealed potential therapeutic targets for the treatment of primary open-angle glaucoma and keratoconus.

中文翻译:

孟德尔随机分析确定多效性与中央角膜厚度相关的基因

目的:确定与中央角膜厚度(CCT)多效性或潜在因果相关的基因的优先级。方法:我们应用基于汇总数据的孟德尔随机化(SMR)方法,将CCT上的全基因组关联研究(GWAS)汇总数据和表达定量性状基因座(eQTL)数据相结合,以鉴定与CCT多效性相关的基因。我们使用CAGE eQTL数据和GTEx eQTL数据进行了单独的SMR分析。分别对欧洲和东亚祖先的参与者进行了SMR分析。结果:在欧洲血统的参与者中,我们鉴定出多个与CCT多效性相关的基因。CLIC3(ILMN_1796423; PSMR = 4.15 * 10 ^ -12),PTGDS(ILMN_1664464; PSMR = 6.88 * 10 ^ -9)和C9orf142(ILMN_1761138; PSMR = 8)。使用CAGE eQTL数据的前三个基因分别是09 * 10 ^ -9)和RP11-458F8.4(ENSG00000273142.1; PSMR = 5.89 * 10 ^ -9),LCNL1(ENSG00000214402.6; PSMR = 5.67 * 10) ^ -8)和PTGDS(ENSG00000107317.7; PSMR = 1.92 * 10 ^ -7)是使用GTEx eQTL数据的前三个基因。经过多次测试校正后,在东亚血统的参与者中,没有基因显示与CCT有显着的多效性关联。结论:我们鉴定了与CCT多效性相关的几个基因,其中一些代表影响CCT的新基因。我们的发现提供了重要线索,可以更好地理解影响CCT的遗传因素,并揭示了潜在的治疗靶点,用于治疗原发性开角型青光眼和圆锥角膜。根据GTEx eQTL数据,PTGDS和PTGDS(ENSG00000107317.7; PSMR = 1.92 * 10 ^ -7)是排名前三位的基因。经过多次测试校正后,在东亚血统的参与者中,没有基因显示与CCT有显着的多效性关联。结论:我们鉴定了与CCT多效性相关的几个基因,其中一些代表影响CCT的新基因。我们的发现提供了重要线索,可以更好地理解影响CCT的遗传因素,并揭示了潜在的治疗靶点,用于治疗原发性开角型青光眼和圆锥角膜。根据GTEx eQTL数据,PTGDS和PTGDS(ENSG00000107317.7; PSMR = 1.92 * 10 ^ -7)是排名前三位的基因。经过多次测试校正后,在东亚血统的参与者中,没有基因显示与CCT有显着的多效性关联。结论:我们鉴定了与CCT多效性相关的几个基因,其中一些代表影响CCT的新基因。我们的发现提供了重要线索,可以更好地理解影响CCT的遗传因素,并揭示了潜在的治疗靶点,用于治疗原发性开角型青光眼和圆锥角膜。我们鉴定了几个与CCT多效性相关的基因,其中一些代表了影响CCT的新基因。我们的发现提供了重要线索,可以更好地理解影响CCT的遗传因素,并揭示了潜在的治疗靶点,用于治疗原发性开角型青光眼和圆锥角膜。我们鉴定了几个与CCT多效性相关的基因,其中一些代表了影响CCT的新基因。我们的发现提供了重要线索,可以更好地理解影响CCT的遗传因素,并揭示了潜在的治疗靶点,用于治疗原发性开角型青光眼和圆锥角膜。
更新日期:2021-03-02
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