Prostate cancer risk by BRCA2 genomic regions

Nyberg, Tommy, Frost, Debra, Barrowdale, Daniel, Evans, D. Gareth, Bancroft, Elizabeth, Adlard, Julian, Ahmed, Munaza, Barwell, Julian, Brady, Angela F., Brewer, Carole, Cook, Jackie, Davidson, Rosemarie, Donaldson, Alan, Eason, Jacqueline, Gregory, Helen, Henderson, Alex, Izatt, Louise, Kennedy, M. John, Miller, Claire, Morrison, Patrick J., Murray, Alex, Ong, Kai-Ren, Porteous, Mary, Pottinger, Caroline, Rogers, Mark T., Side, Lucy, Snape, Katie, Tripathi, Vishakha, Walker, Lisa, Tischkowitz, Marc, Eeles, Rosalind, Easton, Douglas F. and Antoniou, Antonis C. 2020. Prostate cancer risk by BRCA2 genomic regions. European Urology 78 (4) , pp. 494-497. 10.1016/j.eururo.2020.05.005

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Abstract

A 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.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Schools > Medicine
Additional Information:	This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/)
Publisher:	Elsevier
ISSN:	0302-2838
Date of First Compliant Deposit:	31 August 2021
Date of Acceptance:	5 May 2020
Last Modified:	13 Jun 2023 06:21
URI:	https://orca.cardiff.ac.uk/id/eprint/143755

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