Fine-mapping the HOXB region detects common variants tagging a rare coding allele: evidence for synthetic association in prostate cancer.

Fine-mapping the HOXB region detects common variants tagging a rare coding allele: evidence for synthetic association in prostate cancer.

The HOXB13 gene has been implicated in prostate cancer (PrCa) susceptibility. We performed a high resolution fine-mapping analysis to comprehensively evaluate the association between common genetic variation across the HOXB genetic locus at 17q21 and PrCa risk. This involved genotyping 700 SNPs usin...

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Autores principales: Edward J Saunders, Tokhir Dadaev, Daniel A Leongamornlert, Sarah Jugurnauth-Little, Malgorzata Tymrakiewicz, Fredrik Wiklund, Ali Amin Al Olama, Sara Benlloch, David E Neal, Freddie C Hamdy, Jenny L Donovan, Graham G Giles, Gianluca Severi, Henrik Gronberg, Markus Aly, Christopher A Haiman, Fredrick Schumacher, Brian E Henderson, Sara Lindstrom, Peter Kraft, David J Hunter, Susan Gapstur, Stephen Chanock, Sonja I Berndt, Demetrius Albanes, Gerald Andriole, Johanna Schleutker, Maren Weischer, Børge G Nordestgaard, Federico Canzian, Daniele Campa, Elio Riboli, Tim J Key, Ruth C Travis, Sue A Ingles, Esther M John, Richard B Hayes, Paul Pharoah, Kay-Tee Khaw, Janet L Stanford, Elaine A Ostrander, Lisa B Signorello, Stephen N Thibodeau, Daniel Schaid, Christiane Maier, Adam S Kibel, Cezary Cybulski, Lisa Cannon-Albright, Hermann Brenner, Jong Y Park, Radka Kaneva, Jyotsna Batra, Judith A Clements, Manuel R Teixeira, Jianfeng Xu, Christos Mikropoulos, Chee Goh, Koveela Govindasami, Michelle Guy, Rosemary A Wilkinson, Emma J Sawyer, Angela Morgan, COGS-CRUK GWAS-ELLIPSE (Part of GAME-ON) Initiative, UK Genetic Prostate Cancer Study Collaborators, UK ProtecT Study Collaborators, PRACTICAL Consortium, Douglas F Easton, Ken Muir, Rosalind A Eeles, Zsofia Kote-Jarai
Formato: article
Lenguaje:EN
Publicado: Public Library of Science (PLoS) 2014
Materias:
Genetics
QH426-470
Acceso en línea:https://doaj.org/article/ef4e48a676e14b05b1bb979807ceb684
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Sumario:The HOXB13 gene has been implicated in prostate cancer (PrCa) susceptibility. We performed a high resolution fine-mapping analysis to comprehensively evaluate the association between common genetic variation across the HOXB genetic locus at 17q21 and PrCa risk. This involved genotyping 700 SNPs using a custom Illumina iSelect array (iCOGS) followed by imputation of 3195 SNPs in 20,440 PrCa cases and 21,469 controls in The PRACTICAL consortium. We identified a cluster of highly correlated common variants situated within or closely upstream of HOXB13 that were significantly associated with PrCa risk, described by rs117576373 (OR 1.30, P = 2.62×10(-14)). Additional genotyping, conditional regression and haplotype analyses indicated that the newly identified common variants tag a rare, partially correlated coding variant in the HOXB13 gene (G84E, rs138213197), which has been identified recently as a moderate penetrance PrCa susceptibility allele. The potential for GWAS associations detected through common SNPs to be driven by rare causal variants with higher relative risks has long been proposed; however, to our knowledge this is the first experimental evidence for this phenomenon of synthetic association contributing to cancer susceptibility.

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