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Genetic modifiers of CHEK2*1100delC-associated breast cancer risk

  • NBCS Investigators
  • , Taru A Muranen
  • , Dario Greco
  • , Carl Blomqvist
  • , Kristiina Aittomäki
  • , Sofia Khan
  • , Frans Hogervorst
  • , Senno Verhoef
  • , Paul D P Pharoah
  • , Alison M Dunning
  • , Mitul Shah
  • , Robert Luben
  • , Stig E Bojesen
  • , Børge G Nordestgaard
  • , Minouk Schoemaker
  • , Anthony Swerdlow
  • , Montserrat García-Closas
  • , Jonine Figueroa
  • , Thilo Dörk
  • , Natalia V Bogdanova
  • Per Hall, Jingmei Li, Elza Khusnutdinova, Marina Bermisheva, Vessela Kristensen, Anne-Lise Borresen-Dale, Julian Peto, Isabel Dos Santos Silva, Fergus J Couch, Janet E Olson, Peter Hillemans, Tjoung-Won Park-Simon, Hiltrud Brauch, Ute Hamann, Barbara Burwinkel, Frederik Marme, Alfons Meindl, Rita K Schmutzler, Angela Cox, Simon S Cross, Elinor J Sawyer, Ian Tomlinson, Diether Lambrechts, Matthieu Moisse, Annika Lindblom, Sara Margolin, Antoinette Hollestelle, John W M Martens, Peter A Fasching, Arto Mannermaa, Veli-Matti Kosma

Research output: Contribution to journalArticleScientificpeer-review

72 Citations (Scopus)

Abstract

PURPOSE: CHEK2*1100delC is a founder variant in European populations that confers a two- to threefold increased risk of breast cancer (BC). Epidemiologic and family studies have suggested that the risk associated with CHEK2*1100delC is modified by other genetic factors in a multiplicative fashion. We have investigated this empirically using data from the Breast Cancer Association Consortium (BCAC).

METHODS: Using genotype data from 39,139 (624 1100delC carriers) BC patients and 40,063 (224) healthy controls from 32 BCAC studies, we analyzed the combined risk effects of CHEK2*1100delC and 77 common variants in terms of a polygenic risk score (PRS) and pairwise interaction.

RESULTS: The PRS conferred odds ratios (OR) of 1.59 (95% CI: 1.21-2.09) per standard deviation for BC for CHEK2*1100delC carriers and 1.58 (1.55-1.62) for noncarriers. No evidence of deviation from the multiplicative model was found. The OR for the highest quintile of the PRS was 2.03 (0.86-4.78) for CHEK2*1100delC carriers, placing them in the high risk category according to UK NICE guidelines. The OR for the lowest quintile was 0.52 (0.16-1.74), indicating a lifetime risk close to the population average.

CONCLUSION: Our results confirm the multiplicative nature of risk effects conferred by CHEK2*1100delC and the common susceptibility variants. Furthermore, the PRS could identify carriers at a high lifetime risk for clinical actions.Genet Med advance online publication 06 October 2016.

Original languageEnglish
Pages (from-to)599-603
Number of pages5
JournalGenetics in Medicine
Volume19
Issue number5
DOIs
Publication statusPublished - May 2017
Externally publishedYes
Publication typeA1 Journal article-refereed

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

Keywords

  • Breast Neoplasms/genetics
  • Checkpoint Kinase 2/genetics
  • Female
  • Genes, Modifier
  • Genetic Predisposition to Disease
  • Humans
  • Odds Ratio
  • Penetrance
  • Sequence Deletion

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