Cited by 401BRCA gene mutations in cancerPancreatic and Hepatic Oncology ResearchGenetic factors in colorectal cancer

Germline BRCA Mutations in a Large Clinic-Based Cohort of Patients With Pancreatic Adenocarcinoma

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Holter, Spring, Borgida, Ayelet, Dodd, Anna, Grant, Robert, Semotiuk, Kara, Hedley, David, Dhani, Neesha, Narod, Steven +3 more·2015·Journal of Clinical Oncology

Abstract

Purpose: The main purpose of this study was to determine the prevalence of pathogenic BRCA1 and BRCA2 mutations in a consecutively ascertained clinic-based cohort of patients with pancreatic ductal adenocarcinoma and describe the clinical and family history characteristics. Patients and Methods: Unselected, consecutive, incident patients with pancreatic ductal adenocarcinoma were recruited at a single cancer center over a 2-year period. Participants provided blood for DNA analysis and cancer family history, and cancer treatment records were reviewed. DNA from all patients was analyzed by Sanger sequencing and multiplex ligation-dependent probe amplification for germline variants in BRCA1 and BRCA2. Results: Three hundred six patients were eligible for analysis. Pathogenic germline BRCA mutations were identified in 14 patients (4.6%; 95% CI, 2.2% to 6.9%), including 11 patients with a BRCA2 mutation and three patients with a BRCA1 mutation. Having a cancer family history that met genetic testing criteria of the National Comprehensive Cancer Network or the Ontario Ministry of Health and Long-Term Care or self-reporting as Ashkenazi Jewish was significantly associated with BRCA mutation carrier status (P = .02, P < .001, and P = .05, respectively). However, the majority of the BRCA mutation–positive patients did not actually meet these genetic testing criteria. Conclusion: Pathogenic BRCA mutations were identified in 4.6% of a large cohort of clinic-based patients. Considering the implications for family members of BRCA carriers, and possibly tailored chemotherapeutic treatment of patients, our finding has implications for broader BRCA genetic testing for patients with pancreatic ductal adenocarcinoma.

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Crossref · 10.1200/jco.2014.59.7401

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Authors
Holter, S., Borgida, A., Dodd, A., Grant, R., Semotiuk, K., Hedley, D., Dhani, N., Narod, S., Akbari, M., Moore, M., & Gallinger, S.
Affiliations
  • Mount Sinai Hospital (CA)
  • Spring Holter, Ayelet Borgida, Robert Grant, Kara Semotiuk, and Steven Gallinger, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital; Anna Dodd, David Hedley, Neesha Dhani, Malcolm Moore, and Steven Gallinger, McCain Pancreatic Cancer Centre, University Health Network; and Steven Narod and Mohammad Akbari, Women's College Research Institute, Toronto, Ontario, Canada.
Venue
Journal of Clinical Oncology
Published
2015-10-01
Volume
33
Issue
28
Pages
3124-3129
ISSN
  • 0732-183X (ISSN-L)
  • 1527-7755
OpenAlex
W2161479848
Cited by
398
References
39
Citations by year
2026: 18 · 2025: 19 · 2024: 23 · 2023: 40 · 2022: 40 · 2021: 71 · 2020: 50 · 2019: 27 · 2018: 42 · 2017: 30 · 2016: 26 · 2015: 12
FWCI
25.18
Type
journal article
Language
en
Open access
Locations
  • Journal of Clinical Oncology (publishedVersion)
  • PubMed (publishedVersion)
Funders
Canadian Cancer Society Research Institute
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › BRCA gene mutations in cancer
  • Health Sciences › Medicine › Oncology › Pancreatic and Hepatic Oncology Research
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Genetic factors in colorectal cancer
Keywords
germline BRCA1 mutation, germline BRCA2 mutation, pancreatic ductal adenocarcinoma, family history of cancer, Ashkenazi Jewish ancestry, hereditary cancer predisposition
MeSH terms
Adult, Aged, Aged, 80 and over, DNA Mutational Analysis, Female, Gene Frequency, Humans, Jews, Male, Middle Aged, Ontario, Pancreatic Neoplasms, Pedigree, Phenotype, Prognosis, Prospective Studies, Risk Factors, Incidence, Germ-Line Mutation, BRCA1 Protein, Genetic Predisposition to Disease, Carcinoma, Pancreatic Ductal, BRCA2 Protein, Heredity, Multiplex Polymerase Chain Reaction

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