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Prostate Cancer Risk by BRCA2 Genomic Regions

Lookup NU author(s): Alexander Henderson

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This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).


Abstract

© 2020A BRCA2 prostate cancer cluster region (PCCR) was recently proposed (c.7914 to 3′) wherein pathogenic variants (PVs) are associated with higher prostate cancer (PCa) risk than PVs elsewhere in the BRCA2 gene. Using a prospective cohort study of 447 male BRCA2 PV carriers recruited in the UK and Ireland from 1998 to 2016, we estimated standardised incidence ratios (SIRs) compared with population incidences and assessed variation in risk by PV location. Carriers of PVs in the PCCR had a PCa SIR of 8.33 (95% confidence interval [CI] 4.46–15.6) and were at a higher risk of PCa than carriers of other BRCA2 PVs (SIR = 3.31, 95% CI 1.97–5.57; hazard ratio = 2.34, 95% CI 1.09–5.03). PCCR PV carriers had an estimated cumulative PCa risk of 44% (95% CI 23–72%) by the age of 75 yr and 78% (95% CI 54–94%) by the age of 85 yr. Our results corroborate the existence of a PCCR in BRCA2 in a prospective cohort. Patient summary: In this report, we investigated whether the risk of prostate cancer for men with a harmful mutation in the BRCA2 gene differs based on where in the gene the mutation is located. We found that men with mutations in one region of BRCA2 had a higher risk of prostate cancer than men with mutations elsewhere in the gene.© 2020BRCA2 pathogenic variants located in a recently proposed prostate cancer cluster region confers higher risks of prostate cancer than other BRCA2 variants. This report corroborates the existence of this prostate cancer cluster region in a large prospective cohort study.


Publication metadata

Author(s): Nyberg T, Frost D, Barrowdale D, Evans DG, Bancroft E, Adlard J, Ahmed M, Barwell J, Brady AF, Brewer C, Cook J, Davidson R, Donaldson A, Eason J, Gregory H, Henderson A, Izatt L, Kennedy MJ, Miller C, Morrison PJ, Murray A, Ong K-R, Porteous M, Pottinger C, Rogers MT, Side L, Snape K, Tripathi V, Walker L, Tischkowitz M, Eeles R, Easton DF, Antoniou AC

Publication type: Article

Publication status: Published

Journal: European Urology

Year: 2020

Pages: ePub ahead of print

Acceptance date: 05/05/2020

Date deposited: 01/07/2020

ISSN (print): 0302-2838

ISSN (electronic): 1873-7560

Publisher: Elsevier B.V.

URL: https://doi.org/10.1016/j.eururo.2020.05.005

DOI: 10.1016/j.eururo.2020.05.005


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