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Lhota F, Zemankova P, Kleiblova P, Soukupova J, Vocka M, Stranecky V, Janatova M, Hartmannova H, Hodanova K, Kmoch S, Kleibl Z. Hereditary truncating mutations of DNA repair and other genes in BRCA1/BRCA2/PALB2-negatively tested breast cancer patients. Clin Genet 2016; 90:324-33. [PMID: 26822949 DOI: 10.1111/cge.12748] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2015] [Revised: 01/22/2016] [Accepted: 01/25/2016] [Indexed: 12/12/2022]
Abstract
Hereditary breast cancer comprises a minor but clinically meaningful breast cancer (BC) subgroup. Mutations in the major BC-susceptibility genes are important prognostic and predictive markers; however, their carriers represent only 25% of high-risk BC patients. To further characterize variants influencing BC risk, we performed SOLiD sequencing of 581 genes in 325 BC patients (negatively tested in previous BRCA1/BRCA2/PALB2 analyses). In 105 (32%) patients, we identified and confirmed 127 truncating variants (89 unique; nonsense, frameshift indels, and splice site), 19 patients harbored more than one truncation. Forty-six (36 unique) truncating variants in 25 DNA repair genes were found in 41 (12%) patients, including 16 variants in the Fanconi anemia (FA) genes. The most frequent variant in FA genes was c.1096_1099dupATTA in FANCL that also show a borderline association with increased BC risk in subsequent analysis of enlarged groups of BC patients and controls. Another 81 (53 unique) truncating variants were identified in 48 non-DNA repair genes in 74 patients (23%) including 16 patients carrying variants in genes coding proteins of estrogen metabolism/signaling. Our results highlight the importance of mutations in the FA genes' family, and indicate that estrogen metabolism genes may reveal a novel candidate genetic component for BC susceptibility.
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Affiliation(s)
- F Lhota
- Institute of Biochemistry and Experimental Oncology, First Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
| | - P Zemankova
- Institute of Biochemistry and Experimental Oncology, First Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
| | - P Kleiblova
- Institute of Biochemistry and Experimental Oncology, First Faculty of Medicine, Charles University in Prague, Prague, Czech Republic.,Institute of Biology and Medical Genetics, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, Prague, Czech Republic
| | - J Soukupova
- Institute of Biochemistry and Experimental Oncology, First Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
| | - M Vocka
- Department of Oncology, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, Prague, Czech Republic
| | - V Stranecky
- Institute of Inherited Metabolic Disorders, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, Prague, Czech Republic
| | - M Janatova
- Institute of Biochemistry and Experimental Oncology, First Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
| | - H Hartmannova
- Institute of Inherited Metabolic Disorders, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, Prague, Czech Republic
| | - K Hodanova
- Institute of Inherited Metabolic Disorders, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, Prague, Czech Republic
| | - S Kmoch
- Institute of Inherited Metabolic Disorders, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, Prague, Czech Republic
| | - Z Kleibl
- Institute of Biochemistry and Experimental Oncology, First Faculty of Medicine, Charles University in Prague, Prague, Czech Republic.
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108
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El Saghir NS, Zgheib NK, Assi HA, Khoury KE, Bidet Y, Jaber SM, Charara RN, Farhat RA, Kreidieh FY, Decousus S, Romero P, Nemer GM, Salem Z, Shamseddine A, Tfayli A, Abbas J, Jamali F, Seoud M, Armstrong DK, Bignon YJ, Uhrhammer N. BRCA1 and BRCA2 mutations in ethnic Lebanese Arab women with high hereditary risk breast cancer. Oncologist 2015; 20:357-64. [PMID: 25777348 DOI: 10.1634/theoncologist.2014-0364] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2014] [Accepted: 01/06/2015] [Indexed: 12/19/2022] Open
Abstract
PURPOSE Breast cancer is the most common malignancy among women in Lebanon and in Arab countries, with 50% of cases presenting before the age of 50 years. METHODS Between 2009 and 2012, 250 Lebanese women with breast cancer who were considered to be at high risk of carrying BRCA1 or BRCA2 mutations because of presentation at young age and/or positive family history (FH) of breast or ovarian cancer were recruited. Clinical data were analyzed statistically. Coding exons and intron-exon boundaries of BRCA1 and BRCA2 were sequenced from peripheral blood DNA. All patients were tested for BRCA1 rearrangements using multiplex ligation-dependent probe amplification (MLPA). BRCA2 MLPA was done in selected cases. RESULTS Overall, 14 of 250 patients (5.6%) carried a deleterious BRCA mutation (7 BRCA1, 7 BRCA2) and 31 (12.4%) carried a variant of uncertain significance. Eight of 74 patients (10.8%) aged ≤40 years with positive FH and only 1 of 74 patients (1.4%) aged ≤40 years without FH had a mutated BRCA. Four of 75 patients (5.3%) aged 41-50 years with FH had a deleterious mutation. Only 1 of 27 patients aged >50 years at diagnosis had a BRCA mutation. All seven patients with BRCA1 mutations had grade 3 infiltrating ductal carcinoma and triple-negative breast cancer. Nine BRCA1 and 17 BRCA2 common haplotypes were observed. CONCLUSION Prevalence of deleterious BRCA mutations is lower than expected and does not support the hypothesis that BRCA mutations alone cause the observed high percentage of breast cancer in young women of Lebanese and Arab descent. Studies to search for other genetic mutations are recommended.
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Affiliation(s)
- Nagi S El Saghir
- Division of Hematology-Oncology, Department of Internal Medicine, and Departments of Pharmacology and Toxicology, Surgery, and Obstetrics and Gynecology, American University of Beirut, Lebanon; University of Auvergne and Laboratoire Diagnostique Génétique et Moléculaire, Centre Jean Perrin, Clermont-Ferrand, France; Sidney Kimmel Comprehensive Cancer Center and Department of Gynecology and Obstetrics, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
| | - Nathalie K Zgheib
- Division of Hematology-Oncology, Department of Internal Medicine, and Departments of Pharmacology and Toxicology, Surgery, and Obstetrics and Gynecology, American University of Beirut, Lebanon; University of Auvergne and Laboratoire Diagnostique Génétique et Moléculaire, Centre Jean Perrin, Clermont-Ferrand, France; Sidney Kimmel Comprehensive Cancer Center and Department of Gynecology and Obstetrics, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
| | - Hussein A Assi
- Division of Hematology-Oncology, Department of Internal Medicine, and Departments of Pharmacology and Toxicology, Surgery, and Obstetrics and Gynecology, American University of Beirut, Lebanon; University of Auvergne and Laboratoire Diagnostique Génétique et Moléculaire, Centre Jean Perrin, Clermont-Ferrand, France; Sidney Kimmel Comprehensive Cancer Center and Department of Gynecology and Obstetrics, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
| | - Katia E Khoury
- Division of Hematology-Oncology, Department of Internal Medicine, and Departments of Pharmacology and Toxicology, Surgery, and Obstetrics and Gynecology, American University of Beirut, Lebanon; University of Auvergne and Laboratoire Diagnostique Génétique et Moléculaire, Centre Jean Perrin, Clermont-Ferrand, France; Sidney Kimmel Comprehensive Cancer Center and Department of Gynecology and Obstetrics, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
| | - Yannick Bidet
- Division of Hematology-Oncology, Department of Internal Medicine, and Departments of Pharmacology and Toxicology, Surgery, and Obstetrics and Gynecology, American University of Beirut, Lebanon; University of Auvergne and Laboratoire Diagnostique Génétique et Moléculaire, Centre Jean Perrin, Clermont-Ferrand, France; Sidney Kimmel Comprehensive Cancer Center and Department of Gynecology and Obstetrics, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
| | - Sara M Jaber
- Division of Hematology-Oncology, Department of Internal Medicine, and Departments of Pharmacology and Toxicology, Surgery, and Obstetrics and Gynecology, American University of Beirut, Lebanon; University of Auvergne and Laboratoire Diagnostique Génétique et Moléculaire, Centre Jean Perrin, Clermont-Ferrand, France; Sidney Kimmel Comprehensive Cancer Center and Department of Gynecology and Obstetrics, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
| | - Raghid N Charara
- Division of Hematology-Oncology, Department of Internal Medicine, and Departments of Pharmacology and Toxicology, Surgery, and Obstetrics and Gynecology, American University of Beirut, Lebanon; University of Auvergne and Laboratoire Diagnostique Génétique et Moléculaire, Centre Jean Perrin, Clermont-Ferrand, France; Sidney Kimmel Comprehensive Cancer Center and Department of Gynecology and Obstetrics, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
| | - Rania A Farhat
- Division of Hematology-Oncology, Department of Internal Medicine, and Departments of Pharmacology and Toxicology, Surgery, and Obstetrics and Gynecology, American University of Beirut, Lebanon; University of Auvergne and Laboratoire Diagnostique Génétique et Moléculaire, Centre Jean Perrin, Clermont-Ferrand, France; Sidney Kimmel Comprehensive Cancer Center and Department of Gynecology and Obstetrics, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
| | - Firas Y Kreidieh
- Division of Hematology-Oncology, Department of Internal Medicine, and Departments of Pharmacology and Toxicology, Surgery, and Obstetrics and Gynecology, American University of Beirut, Lebanon; University of Auvergne and Laboratoire Diagnostique Génétique et Moléculaire, Centre Jean Perrin, Clermont-Ferrand, France; Sidney Kimmel Comprehensive Cancer Center and Department of Gynecology and Obstetrics, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
| | - Stephanie Decousus
- Division of Hematology-Oncology, Department of Internal Medicine, and Departments of Pharmacology and Toxicology, Surgery, and Obstetrics and Gynecology, American University of Beirut, Lebanon; University of Auvergne and Laboratoire Diagnostique Génétique et Moléculaire, Centre Jean Perrin, Clermont-Ferrand, France; Sidney Kimmel Comprehensive Cancer Center and Department of Gynecology and Obstetrics, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
| | - Pierre Romero
- Division of Hematology-Oncology, Department of Internal Medicine, and Departments of Pharmacology and Toxicology, Surgery, and Obstetrics and Gynecology, American University of Beirut, Lebanon; University of Auvergne and Laboratoire Diagnostique Génétique et Moléculaire, Centre Jean Perrin, Clermont-Ferrand, France; Sidney Kimmel Comprehensive Cancer Center and Department of Gynecology and Obstetrics, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
| | - Georges M Nemer
- Division of Hematology-Oncology, Department of Internal Medicine, and Departments of Pharmacology and Toxicology, Surgery, and Obstetrics and Gynecology, American University of Beirut, Lebanon; University of Auvergne and Laboratoire Diagnostique Génétique et Moléculaire, Centre Jean Perrin, Clermont-Ferrand, France; Sidney Kimmel Comprehensive Cancer Center and Department of Gynecology and Obstetrics, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
| | - Ziad Salem
- Division of Hematology-Oncology, Department of Internal Medicine, and Departments of Pharmacology and Toxicology, Surgery, and Obstetrics and Gynecology, American University of Beirut, Lebanon; University of Auvergne and Laboratoire Diagnostique Génétique et Moléculaire, Centre Jean Perrin, Clermont-Ferrand, France; Sidney Kimmel Comprehensive Cancer Center and Department of Gynecology and Obstetrics, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
| | - Ali Shamseddine
- Division of Hematology-Oncology, Department of Internal Medicine, and Departments of Pharmacology and Toxicology, Surgery, and Obstetrics and Gynecology, American University of Beirut, Lebanon; University of Auvergne and Laboratoire Diagnostique Génétique et Moléculaire, Centre Jean Perrin, Clermont-Ferrand, France; Sidney Kimmel Comprehensive Cancer Center and Department of Gynecology and Obstetrics, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
| | - Arafat Tfayli
- Division of Hematology-Oncology, Department of Internal Medicine, and Departments of Pharmacology and Toxicology, Surgery, and Obstetrics and Gynecology, American University of Beirut, Lebanon; University of Auvergne and Laboratoire Diagnostique Génétique et Moléculaire, Centre Jean Perrin, Clermont-Ferrand, France; Sidney Kimmel Comprehensive Cancer Center and Department of Gynecology and Obstetrics, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
| | - Jaber Abbas
- Division of Hematology-Oncology, Department of Internal Medicine, and Departments of Pharmacology and Toxicology, Surgery, and Obstetrics and Gynecology, American University of Beirut, Lebanon; University of Auvergne and Laboratoire Diagnostique Génétique et Moléculaire, Centre Jean Perrin, Clermont-Ferrand, France; Sidney Kimmel Comprehensive Cancer Center and Department of Gynecology and Obstetrics, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
| | - Faek Jamali
- Division of Hematology-Oncology, Department of Internal Medicine, and Departments of Pharmacology and Toxicology, Surgery, and Obstetrics and Gynecology, American University of Beirut, Lebanon; University of Auvergne and Laboratoire Diagnostique Génétique et Moléculaire, Centre Jean Perrin, Clermont-Ferrand, France; Sidney Kimmel Comprehensive Cancer Center and Department of Gynecology and Obstetrics, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
| | - Muhieddine Seoud
- Division of Hematology-Oncology, Department of Internal Medicine, and Departments of Pharmacology and Toxicology, Surgery, and Obstetrics and Gynecology, American University of Beirut, Lebanon; University of Auvergne and Laboratoire Diagnostique Génétique et Moléculaire, Centre Jean Perrin, Clermont-Ferrand, France; Sidney Kimmel Comprehensive Cancer Center and Department of Gynecology and Obstetrics, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
| | - Deborah K Armstrong
- Division of Hematology-Oncology, Department of Internal Medicine, and Departments of Pharmacology and Toxicology, Surgery, and Obstetrics and Gynecology, American University of Beirut, Lebanon; University of Auvergne and Laboratoire Diagnostique Génétique et Moléculaire, Centre Jean Perrin, Clermont-Ferrand, France; Sidney Kimmel Comprehensive Cancer Center and Department of Gynecology and Obstetrics, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
| | - Yves-Jean Bignon
- Division of Hematology-Oncology, Department of Internal Medicine, and Departments of Pharmacology and Toxicology, Surgery, and Obstetrics and Gynecology, American University of Beirut, Lebanon; University of Auvergne and Laboratoire Diagnostique Génétique et Moléculaire, Centre Jean Perrin, Clermont-Ferrand, France; Sidney Kimmel Comprehensive Cancer Center and Department of Gynecology and Obstetrics, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
| | - Nancy Uhrhammer
- Division of Hematology-Oncology, Department of Internal Medicine, and Departments of Pharmacology and Toxicology, Surgery, and Obstetrics and Gynecology, American University of Beirut, Lebanon; University of Auvergne and Laboratoire Diagnostique Génétique et Moléculaire, Centre Jean Perrin, Clermont-Ferrand, France; Sidney Kimmel Comprehensive Cancer Center and Department of Gynecology and Obstetrics, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
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109
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Neamatzadeh H, Shiryazdi SM, Kalantar SM. BRCA1 and BRCA2 mutations in Iranian breast cancer patients: A systematic review. JOURNAL OF RESEARCH IN MEDICAL SCIENCES : THE OFFICIAL JOURNAL OF ISFAHAN UNIVERSITY OF MEDICAL SCIENCES 2015; 20:284-93. [PMID: 26109977 PMCID: PMC4468235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2014] [Revised: 07/05/2014] [Accepted: 07/15/2014] [Indexed: 11/30/2022]
Abstract
BACKGROUND BRCA1/2 genes mutation prevalence varies among ethnic groups and may be influenced by founder mutations. Understanding BRCA1/2 genes mutations is important for reducing breast cancer (BC) incidence, accurate risk assessment and counseling. This systematic review of the literature was conducted to addressing BRCA1/2 mutations in Iranian BC patients. MATERIALS AND METHODS A search for relevant articles was run on before January 2014 using MedLine, PubMed, Science Iranian Database, Google, and Web sites related to the study topic. The key words included: BC and Iran with Genes, BRCA Genes, BRCA1 and BRCA2; "Cancer Genes," and "Iran." RESULTS Thirteen articles retrieved from this search strategy were eligible for this review. The overall BRCA1 mutation rate for Iranian female BC patients was detected 31.8% (377/1183). Although this gene mutation rate for male patients is <0.01%. Eight BRCA1 mutations (c. 4837A > G, c. 3419G > A, c. 3119G > A, c. 2612C > T, c. 3113A > G, c. 2311T > C, c. 4301T > C and c. 4308T > C in BRCA1, and one BRCA2 mutation (c. 6494G > C) were found in multiple case subjects and represent candidate founder mutations. CONCLUSION According to these studies, there is heterogeneity in BRCA mutations in Iranian BC patients.
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Affiliation(s)
- Hossein Neamatzadeh
- Department of Medical Genetics, Hematology, Oncology and Genetics Research Center, Shahid Sadoughi Training Hospital, Shahid Sadoughi University of Medical Sciences and Health Services, Yazd, Iran
| | - Seyed Mostafa Shiryazdi
- Department of General Surgery, Breast Disease Research Center, Shahid Sadoughi Training Hospital, Shahid Sadoughi University of Medical Sciences and Health Services, Yazd, Iran,Address for correspondence: Dr. Seyed Mostafa Shiryazdi, Department of General Surgery, Shahid Sadoughi Hospital, Bou Ali Avenue, Safaieh, P.O. Box 734, Yazd, Iran. E-mail:
| | - Seyed Mahdi Kalantar
- Department of Medical Genetics, Hematology, Oncology and Genetics Research Center, Shahid Sadoughi Training Hospital, Shahid Sadoughi University of Medical Sciences and Health Services, Yazd, Iran
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