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Genome-wide association study of germline variants and breast cancer-specific mortality

  • Maria Escala-Garcia
  • , Qi Guo
  • , Thilo Dörk
  • , Sander Canisius
  • , Renske Keeman
  • , Joe Dennis
  • , Jonathan Beesley
  • , Julie Lecarpentier
  • , Manjeet K Bolla
  • , Qin Wang
  • , Jean Abraham
  • , Irene L Andrulis
  • , Hoda Anton-Culver
  • , Volker Arndt
  • , Paul L Auer
  • , Matthias W Beckmann
  • , Sabine Behrens
  • , Javier Benitez
  • , Marina Bermisheva
  • , Leslie Bernstein
  • Carl Blomqvist, Bram Boeckx, Stig E Bojesen, Bernardo Bonanni, Anne-Lise Børresen-Dale, Hiltrud Brauch, Hermann Brenner, Adam Brentnall, Louise Brinton, Per Broberg, Ian W Brock, Sara Y Brucker, Barbara Burwinkel, Carlos Caldas, Trinidad Caldés, Daniele Campa, Federico Canzian, Angel Carracedo, Brian D Carter, Jose E Castelao, Jenny Chang-Claude, Stephen J Chanock, Georgia Chenevix-Trench, Ting-Yuan David Cheng, Suet-Feung Chin, Christine L Clarke, Emilie Cordina-Duverger, Fergus J Couch, David G Cox, Nick Orr, NBCS Collaborators

Research output: Contribution to journalArticlepeer-review

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Abstract

BACKGROUND: We examined the associations between germline variants and breast cancer mortality using a large meta-analysis of women of European ancestry.

METHODS: Meta-analyses included summary estimates based on Cox models of twelve datasets using ~10.4 million variants for 96,661 women with breast cancer and 7697 events (breast cancer-specific deaths). Oestrogen receptor (ER)-specific analyses were based on 64,171 ER-positive (4116) and 16,172 ER-negative (2125) patients. We evaluated the probability of a signal to be a true positive using the Bayesian false discovery probability (BFDP).

RESULTS: We did not find any variant associated with breast cancer-specific mortality at P < 5 × 10-8. For ER-positive disease, the most significantly associated variant was chr7:rs4717568 (BFDP = 7%, P = 1.28 × 10-7, hazard ratio [HR] = 0.88, 95% confidence interval [CI] = 0.84-0.92); the closest gene is AUTS2. For ER-negative disease, the most significant variant was chr7:rs67918676 (BFDP = 11%, P = 1.38 × 10-7, HR = 1.27, 95% CI = 1.16-1.39); located within a long intergenic non-coding RNA gene (AC004009.3), close to the HOXA gene cluster.

CONCLUSIONS: We uncovered germline variants on chromosome 7 at BFDP < 15% close to genes for which there is biological evidence related to breast cancer outcome. However, the paucity of variants associated with mortality at genome-wide significance underpins the challenge in providing genetic-based individualised prognostic information for breast cancer patients.

Original languageEnglish
Pages (from-to)647-657
Number of pages11
JournalBritish Journal of Cancer
Volume120
Issue number6
Early online date21 Feb 2019
DOIs
Publication statusPublished - 19 Mar 2019

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

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