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

E J Saunders, T Dadaev, D A Leongamornlert, S Jugurnauth-Little, M Tymrakiewicz, F Wiklund, A A Al Olama, S Benlloch, D E Neal, F C Hamdy, J L Donovan, G G Giles, G Severi, H Gronberg, M Aly, C A Haiman, F Schumacher, B E Henderson, S Lindstrom, P KraftD J Hunter, S Gapstur, S Chanock, S I Berndt, D Albanes, G Andriole, J Schleutker, M Weischer, B G Nordestgaard, F Canzian, D Campa, E Riboli, T J Key, R C Travis, S A Ingles, E M John, R B Hayes, P Pharoah, K T Khaw, J L Stanford, E A Ostrander, L B Signorello, S N Thibodeau, D Schaid, C Maier, A S Kibel, C Cybulski, L Cannon-Albright, H Brenner, J Y Park, R Kaneva, J Batra, J A Clements, M R Teixeira, J Xu, C Mikropoulos, C Goh, K Govindasami, M Guy, R A Wilkinson, E J Sawyer, A Morgan, D F Easton, K Muir, R A Eeles, Z Kote-Jarai

    Research output: Contribution to journalArticlepeer-review

    Abstract

    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 = 2.62x10(-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.
    Original languageEnglish
    JournalPLoS Genet
    Volume10
    Issue number2
    DOIs
    Publication statusPublished - 2014

    Fingerprint

    Dive into the research topics of 'Fine-mapping the HOXB region detects common variants tagging a rare coding allele: evidence for synthetic association in prostate cancer'. Together they form a unique fingerprint.

    Cite this