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Functional mechanisms underlying pleiotropic risk alleles at the 19p13.1 breast-ovarian cancer susceptibility locus

  • kConFab
  • , The Hereditary Breast and Ovarian Cancer Research Group Netherlands (HEBON)
  • , EMBRACE
  • , GEMO Study Collaboratorsz
  • , Australian Ovarian Cancer Study Groupz
  • University of Southern California
  • Cedars-Sinai Medical Center
  • University of Cambridge
  • Queensland Institute of Medical Research
  • Xiamen University
  • Dana-Farber Cancer Institute
  • Helsinki University Hospital
  • University of Toronto
  • University of California at Irvine
  • German Cancer Research Center
  • University of Texas MD Anderson Cancer Center
  • Karolinska Institutet
  • Rutgers - The State University of New Jersey, New Brunswick
  • IRCCS Istituto Europeo di Oncologia - Milano
  • Landspitali University Hospital
  • Friedrich-Alexander University Erlangen-Nürnberg
  • Spanish National Cancer Research Centre (CNIO)
  • Centro de Investigación en Red de Enfermedades Raras
  • Duke University
  • Memorial Sloan-Kettering Cancer Center
  • University of Bergen
  • Vanderbilt University
  • International Epidemiology Institute
  • Hannover Medical School
  • University of Southern Denmark
  • University of Copenhagen
  • University of Oslo
  • Robert Bosch Foundation
  • University of Tübingen
  • International Agency for Research on Cancer
  • Cancer Council Victoria
  • Institute Catala Oncologia
  • MOH Holdings Pte Ltd.
  • Heidelberg University 
  • University of Helsinki
  • University of Utah
  • Hospital Clínico San Carlos de Madrid
  • Peter Maccallum Cancer Centre
  • Roswell Park Cancer Institute
  • University of Hamburg
  • Centre de Recherche du Centre Hospitalier de l'Université Laval (CRCHUL)

Research output: Contribution to journalArticlepeer-review

69 Scopus citations

Abstract

A locus at 19p13 is associated with breast cancer (BC) and ovarian cancer (OC) risk. Here we analyse 438 SNPs in this region in 46,451 BC and 15,438 OC cases, 15,252 BRCA1 mutation carriers and 73,444 controls and identify 13 candidate causal SNPs associated with serous OC (P=9.2 × 10-20), ER-negative BC (P=1.1 × 10-13), BRCA1-associated BC (P=7.7 × 10-16) and triple negative BC (P-diff=2 × 10-5). Genotype-gene expression associations are identified for candidate target genes ANKLE1 (P=2 × 10-3) and ABHD8 (P<2 × 10-3). Chromosome conformation capture identifies interactions between four candidate SNPs and ABHD8, and luciferase assays indicate six risk alleles increased transactivation of the ADHD8 promoter. Targeted deletion of a region containing risk SNP rs56069439 in a putative enhancer induces ANKLE1 downregulation; and mRNA stability assays indicate functional effects for an ANKLE1 3′-UTR SNP. Altogether, these data suggest that multiple SNPs at 19p13 regulate ABHD8 and perhaps ANKLE1 expression, and indicate common mechanisms underlying breast and ovarian cancer risk.

Original languageEnglish
Article number12675
JournalNature Communications
Volume7
DOIs
StatePublished - Sep 7 2016

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