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HNF1B variants associate with promoter methylation and regulate gene networks activated in prostate and ovarian cancer

  • Helen Ross-Adams
  • , Stephen Ball
  • , Kate Lawrenson
  • , Silvia Halim
  • , Roslin Russell
  • , Claire Wells
  • , Siri H. Strand
  • , Torben F. Ørntoft
  • , Melissa Larson
  • , Sebastian Armasu
  • , Charles E. Massie
  • , Mohammad Asim
  • , Martin M. Mortensen
  • , Michael Borre
  • , Kathryn Woodfine
  • , Anne Y. Warren
  • , Alastair D. Lamb
  • , Jonathan Kay
  • , Hayley Whitaker
  • , Antonio Ramos-Montoya
  • Adele Murrell, Karina D. Sørensen, Brooke L. Fridley, Ellen L. Goode, Simon A. Gayther, John Masters, David E. Neal, Ian G. Mills

Research output: Contribution to journalArticlepeer-review

Abstract

Two independent regions within HNF1B are consistently identified in prostate and ovarian cancer genome-wide association studies (GWAS); their functional roles are unclear. We link prostate cancer (PC) risk SNPs rs11649743 and rs3760511 with elevated HNF1B gene expression and allele-specific epigenetic silencing, and outline a mechanism by which common risk variants could effect functional changes that increase disease risk: functional assays suggest that HNF1B is a pro-differentiation factor that suppresses epithelial-to-mesenchymal transition (EMT) in unmethylated, healthy tissues. This tumor-suppressor activity is lost when HNF1B is silenced by promoter methylation in the progression to PC. Epigenetic inactivation of HNF1B in ovarian cancer also associates with known risk SNPs, with a similar impact on EMT. This represents one of the first comprehensive studies into the pleiotropic role of a GWAS-associated transcription factor across distinct cancer types, and is the first to describe a conserved role for a multi-cancer genetic risk factor.

Original languageEnglish (US)
Pages (from-to)74734-74746
Number of pages13
JournalOncotarget
Volume7
Issue number46
DOIs
StatePublished - 2016
Externally publishedYes

Keywords

  • Cancer
  • EQTL
  • HNF1B
  • Ovarian
  • Prostate

ASJC Scopus subject areas

  • Oncology

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