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

  • 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
  • , COGS-CRUK GWAS-ELLIPSE (Part of GAME-ON) Initiative
  • , UKGPCS Collaborators
  • , The UK Protect Study Collaborators
  • , The PRACTICAL (Prostate Cancer Association Group to Investigate Cancer-Associated Alterations in the Genome) Consortium
  • , Jyotsna Batra
  • , Zsofia Kote-Jarai*
  • *Corresponding author for this work

Research output: Contribution to journalArticleResearchpeer-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 = 2.62×10-14). 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.
Original languageEnglish
Article numbere1004129
Pages (from-to)1-8
Number of pages8
JournalPLoS Genetics
Volume10
Issue number2
DOIs
Publication statusPublished - 13 Feb 2014
Externally publishedYes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well-being

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