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Identification of Novel Loci and New Risk Variant in Known Loci for Colorectal Cancer Risk in East Asians

 Yingchang Lu  ;  Sun-Seog Kweon  ;  Qiuyin Cai  ;  Chizu Tanikawa  ;  Xiao-Ou Shu  ;  Wei-Hua Jia  ;  Yong-Bing Xiang  ;  Jeroen R Huyghe  ;  Tabitha A Harrison  ;  Jeongseon Kim  ;  Aesun Shin  ;  Dong-Hyun Kim  ;  Keitaro Matsuo  ;  Sun Ha Jee  ;  Xingyi Guo  ;  Wanqing Wen  ;  Jiajun Shi  ;  Bingshan Li  ;  Nan Wang  ;  Min-Ho Shin  ;  Hong-Lan Li  ;  Zefang Ren  ;  Jae Hwan Oh  ;  Isao Oze  ;  Yoon-Ok Ahn  ;  Keum Ji Jung  ;  Jing Gao  ;  Yu-Tang Gao  ;  Zhi-Zhong Pan  ;  Yoichiro Kamatani  ;  Andrew T Chan  ;  Andrea Gsur  ;  Jochen Hampe  ;  Loic Le Marchand  ;  Li Li  ;  Annika Lindblom  ;  Victor Moreno  ;  Polly A Newcomb  ;  Kenneth Offit  ;  Paul D P Pharoah  ;  Franzel J B van Duijnhoven  ;  Bethany Van Guelpen  ;  Pavel Vodicka  ;  Stephanie J Weinstein  ;  Alicja Wolk  ;  Anna H Wu  ;  Li Hsu  ;  Yi-Xin Zeng  ;  Jirong Long  ;  Ulrike Peters  ;  Koichi Matsuda  ;  Wei Zheng 
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Background: Risk variants identified so far for colorectal cancer explain only a small proportion of familial risk of this cancer, particularly in Asians. Methods: We performed a genome-wide association study (GWAS) of colorectal cancer in East Asians, including 23,572 colorectal cancer cases and 48,700 controls. To identify novel risk loci, we selected 60 promising risk variants for replication using data from 58,131 colorectal cancer cases and 67,347 controls of European descent. To identify additional risk variants in known colorectal cancer loci, we performed conditional analyses in East Asians. Results: An indel variant, rs67052019 at 1p13.3, was found to be associated with colorectal cancer risk at P = 3.9 × 10-8 in Asians (OR per allele deletion = 1.13, 95% confidence interval = 1.08-1.18). This association was replicated in European descendants using a variant (rs2938616) in complete linkage disequilibrium with rs67052019 (P = 7.7 × 10-3). Of the remaining 59 variants, 12 showed an association at P < 0.05 in the European-ancestry study, including rs11108175 and rs9634162 at P < 5 × 10-8 and two variants with an association near the genome-wide significance level (rs60911071, P = 5.8 × 10-8; rs62558833, P = 7.5 × 10-8) in the combined analyses of Asian- and European-ancestry data. In addition, using data from East Asians, we identified 13 new risk variants at 11 loci reported from previous GWAS. Conclusions: In this large GWAS, we identified three novel risk loci and two highly suggestive loci for colorectal cancer risk and provided evidence for potential roles of multiple genes and pathways in the etiology of colorectal cancer. In addition, we showed that additional risk variants exist in many colorectal cancer risk loci identified previously. Impact: Our study provides novel data to improve the understanding of the genetic basis for colorectal cancer risk.
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4. Graduate School of Public Health (보건대학원) > Graduate School of Public Health (보건대학원) > 1. Journal Papers
Yonsei Authors
Jung, Keum Ji(정금지) ORCID logo https://orcid.org/0000-0003-4993-0666
Jee, Sun Ha(지선하) ORCID logo https://orcid.org/0000-0001-9519-3068
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