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Patra A, Ali SS, Devi NM, Qadeer AS, Kamalakannan S, Nag S, Kulkarni SS, Rajappa S, Hariharan N, Pant HB, Agiwal V, A. Y. N. Prevalence of BRCA mutation in breast and ovarian cancer among women in India: A systematic review and meta-analysis protocol. PLoS One 2024; 19:e0306612. [PMID: 39012888 PMCID: PMC11251578 DOI: 10.1371/journal.pone.0306612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Accepted: 06/21/2024] [Indexed: 07/18/2024] Open
Abstract
PURPOSE We present a methodically devised protocol for conducting a systematic review and meta-analysis aimed at ascertaining the prevalence of BReast CAncer gene (BRCA) mutations in breast and ovarian cancer (BOC) among women in India. The review will include cross-sectional, cohort, case-series, and registry-based studies focusing on females clinically diagnosed with any stage of BOC, tested for BRCA germline mutation and undergone any form of treatment. METHODS A Cochrane literature search will be carried out to identify all the published and unpublished articles available in English from 2010 till date across various electronic databases including PubMed, Psych Info, SCI, Cochrane Central, Embase, Scopus, IND Med and Google Scholar. A step-by-step process will be followed to select all the relevant studies for final inclusion using Rayyan software. The selection process of the review will be reported based on Preferred Reporting Items for Systematic Review and Meta-analysis Protocols (PRISMA) checklist. The protocol has been registered in PROSPERO (ID: CRD42023463452). Joanna Briggs Institute Critical Appraisal Checklist will be used to evaluate the methodological quality of the included studies. The outcome measure will be the prevalence of BRCA1/2 gene mutation in this population. Meta-analysis will be performed to report the pooled prevalence along with 95% confidence interval. DISCUSSION The results of this review study will provide valuable insights for clinicians, and policy makers, enabling them to formulate guidelines that underscore the importance of screening for BRCA mutations in cases of BOC.
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Affiliation(s)
- Abhilash Patra
- E2E Pfizer Fellow, Indian Institute of Public Health, Hyderabad, Telangana, India
| | - Syeda Sana Ali
- E2E Pfizer Fellow, Indian Institute of Public Health, Hyderabad, Telangana, India
| | - Ng Marina Devi
- Indian Institute of Public Health, Hyderabad, Telangana, India
| | | | - Sureshkumar Kamalakannan
- Department of Social Work, Education and Community Wellbeing, Northumbria University, London, United Kingdom
| | - Shona Nag
- Oncology Department, Sahyadri Group of Hospitals, Pune, Maharashtra, India
| | | | - Senthil Rajappa
- Basavatarakam Indo American Cancer Hospital and Research Institute, Hyderabad, India
| | - Nisha Hariharan
- Basavatarakam Indo American Cancer Hospital and Research Institute, Hyderabad, India
| | | | - Varun Agiwal
- Indian Institute of Public Health, Hyderabad, Telangana, India
| | - Nirupama A. Y.
- Indian Institute of Public Health, Hyderabad, Telangana, India
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Pitiot AS, Blay P, Díaz-Navarro A, Fernández-Arrojo S, Romero R, Álvarez-Eguiluz Á, Alvarado MG, Álvarez N, García-Teijido P, Fernández Y, Palacio I, Puente XS, Balbín M. Featuring BRCA1 and BRCA2 germline mutational landscape from Asturias (North Spain). Clin Genet 2024. [PMID: 38922859 DOI: 10.1111/cge.14580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Revised: 06/12/2024] [Accepted: 06/14/2024] [Indexed: 06/28/2024]
Abstract
The singular BRCA1/2 mutational landscape of Asturias is updated 10 years after the first study. We analyzed BRCA1 and BRCA2 pathogenic variants in 1653 index cases. In total, 238 families were identified to carry a pathogenic variant, 163 families in BRCA1 and 75 families in BRCA2. This yielded a prevalence rate of 14.4%. Seven recurrent variants were found accounting for 55% of the cases. Among them, three are widely distributed (BRCA1 c.211A>G, c.470_471del and c.3331_3334del) and four had been reported as novel in Asturias: two in BRCA1 (c.1674del and c.2901_2902dup) and two in BRCA2 (c.2095C>T and c.4040_4035delinsC). A common haplotype was established for all recurrent variants indicating a shared ancestral origin. Three splicing analyses are shown: BRCA1:c.5152+3A>C and BRCA1:c.5333-3T>G that lead to skipping of exon 18, and 22 respectively, and BRCA1:c.5278-1G>T giving rise to two transcripts, one lacking exon 21 (p.Ille1760Glyfs*60) and one lacking the first 8 nucleotides of exon 21 (p.Phe1761Asnfs*14), supporting pathogenicity for these variants.
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Affiliation(s)
- Ana S Pitiot
- Laboratorio de Oncología Molecular, Laboratorio de Medicina, Hospital Universitario Central de Asturias, Oviedo, Spain
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Spain
| | - Pilar Blay
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Spain
- Servicio de Oncología Médica, Hospital Universitario Central de Asturias (HUCA), Oviedo, Spain
| | - Ander Díaz-Navarro
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Oviedo, Spain
- Departamento de Bioquímica y Biología Molecular, Universidad de Oviedo, Oviedo, Spain
| | - Sara Fernández-Arrojo
- Departamento de Bioquímica y Biología Molecular, Universidad de Oviedo, Oviedo, Spain
| | - Rosa Romero
- Laboratorio de Oncología Molecular, Laboratorio de Medicina, Hospital Universitario Central de Asturias, Oviedo, Spain
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Spain
| | - Ángel Álvarez-Eguiluz
- Laboratorio de Oncología Molecular, Laboratorio de Medicina, Hospital Universitario Central de Asturias, Oviedo, Spain
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Spain
| | - Marta G Alvarado
- Laboratorio de Oncología Molecular, Laboratorio de Medicina, Hospital Universitario Central de Asturias, Oviedo, Spain
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Spain
| | - Nieves Álvarez
- Servicio de Oncología Médica, Hospital Universitario Central de Asturias (HUCA), Oviedo, Spain
| | - Paula García-Teijido
- Servicio de Oncología Médica, Hospital Universitario Central de Asturias (HUCA), Oviedo, Spain
| | - Yolanda Fernández
- Servicio de Oncología Médica, Hospital Universitario Central de Asturias (HUCA), Oviedo, Spain
| | - Isabel Palacio
- Servicio de Oncología Médica, Hospital Universitario Central de Asturias (HUCA), Oviedo, Spain
| | - Xose S Puente
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Oviedo, Spain
- Departamento de Bioquímica y Biología Molecular, Universidad de Oviedo, Oviedo, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
| | - Milagros Balbín
- Laboratorio de Oncología Molecular, Laboratorio de Medicina, Hospital Universitario Central de Asturias, Oviedo, Spain
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Spain
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Fanale D, Corsini LR, Brando C, Randazzo U, Bono M, Pedone E, Perez A, Sciacchitano R, Cancelliere D, Piraino P, Giurintano A, Bazan Russo TD, Ferraro P, Rinaldi G, Spinnato V, Gennusa V, Pernice G, Vieni S, Pantuso G, Russo A, Bazan V. BRCA-associated hereditary male cancers: can gender affect the prevalence and spectrum of germline pathogenic variants? Front Oncol 2024; 14:1414343. [PMID: 38974244 PMCID: PMC11224533 DOI: 10.3389/fonc.2024.1414343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Accepted: 06/07/2024] [Indexed: 07/09/2024] Open
Abstract
Introduction Although hereditary male neoplasms are quite rare, individuals harbouring germline BRCA1/2 pathogenic variants (PVs) may have a risk of developing tumours associated with Hereditary Breast and Ovarian Cancer (HBOC) syndrome, including male breast (MBC), prostate (PCa) and pancreatic (PC) cancers, and melanoma. Women and men showed a comparable genetic architecture of cancer susceptibility, but there are some gender-specific features. Since little is known about cancer genetic susceptibility in male population, our study was aimed at investigating the frequency of BRCA1/2 PVs in men with HBOC syndrome-associated tumors, in order to understand whether differences in gender may reflect in the prevalence and spectrum of germline alterations. Patients and methods We retrospectively collected and analysed clinical information of 352 HBOC-associated male cancer patients genetically tested for germline BRCA1/2 PVs by Next-Generation Sequencing analysis, enrolled, from February 2018 to January 2024, at the "Regional Center for the prevention, diagnosis and treatment of rare and heredo-familial tumors of adults" of the University-Hospital Policlinico "P. Giaccone" of Palermo (Italy). Results Our investigation revealed that 7.4% of patients was carrier of a germline BRCA PV, with an almost total prevalence of BRCA2 alterations. In particular, 65.4% of BRCA-positive patients developed MBC, 19.2% had PC, 11.6% developed PCa, and only 3.8% had melanoma. Specifically, MBC individuals showed a BRCA-associated genetic predisposition in 17% of cases, whereas patients with PCa or PC exhibited a lower frequency of BRCA2 PVs, taking into account the current national criteria for access to germline genetic testing. Discussion Our study showed a high heterogeneity in prevalence of germline BRCA2 PVs among men which could reflect a potential gender-specific genetic heterogeneity. Therefore, BRCA-associated male tumours could be due to BRCA2 PVs different from those usually detected in women. In the event that it is demonstrated, in future, that male cancers are genetically distinct entities from those female this could improve personalized risk evaluation and guide therapeutic choices for patients of both sexes, in order to obtain a gender equality in cancer care.
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Affiliation(s)
- Daniele Fanale
- Section of Medical Oncology, Department of Precision Medicine in Medical, Surgical and Critical Care (Me.Pre.C.C.), University of Palermo, Palermo, Italy
| | - Lidia Rita Corsini
- Section of Medical Oncology, Department of Precision Medicine in Medical, Surgical and Critical Care (Me.Pre.C.C.), University of Palermo, Palermo, Italy
| | - Chiara Brando
- Section of Medical Oncology, Department of Precision Medicine in Medical, Surgical and Critical Care (Me.Pre.C.C.), University of Palermo, Palermo, Italy
| | - Ugo Randazzo
- Section of Medical Oncology, Department of Precision Medicine in Medical, Surgical and Critical Care (Me.Pre.C.C.), University of Palermo, Palermo, Italy
| | - Marco Bono
- Section of Medical Oncology, Department of Precision Medicine in Medical, Surgical and Critical Care (Me.Pre.C.C.), University of Palermo, Palermo, Italy
| | - Erika Pedone
- Section of Medical Oncology, Department of Precision Medicine in Medical, Surgical and Critical Care (Me.Pre.C.C.), University of Palermo, Palermo, Italy
| | - Alessandro Perez
- Section of Medical Oncology, Department of Precision Medicine in Medical, Surgical and Critical Care (Me.Pre.C.C.), University of Palermo, Palermo, Italy
| | - Roberta Sciacchitano
- Section of Medical Oncology, Department of Precision Medicine in Medical, Surgical and Critical Care (Me.Pre.C.C.), University of Palermo, Palermo, Italy
| | - Daniela Cancelliere
- Section of Medical Oncology, Department of Precision Medicine in Medical, Surgical and Critical Care (Me.Pre.C.C.), University of Palermo, Palermo, Italy
| | - Paola Piraino
- Section of Medical Oncology, Department of Precision Medicine in Medical, Surgical and Critical Care (Me.Pre.C.C.), University of Palermo, Palermo, Italy
| | - Ambra Giurintano
- Section of Medical Oncology, Department of Precision Medicine in Medical, Surgical and Critical Care (Me.Pre.C.C.), University of Palermo, Palermo, Italy
| | - Tancredi Didier Bazan Russo
- Section of Medical Oncology, Department of Precision Medicine in Medical, Surgical and Critical Care (Me.Pre.C.C.), University of Palermo, Palermo, Italy
| | - Pietro Ferraro
- Section of Medical Oncology, Department of Precision Medicine in Medical, Surgical and Critical Care (Me.Pre.C.C.), University of Palermo, Palermo, Italy
| | - Gaetana Rinaldi
- Section of Medical Oncology, Department of Precision Medicine in Medical, Surgical and Critical Care (Me.Pre.C.C.), University of Palermo, Palermo, Italy
| | - Valeria Spinnato
- Section of Medical Oncology, Department of Precision Medicine in Medical, Surgical and Critical Care (Me.Pre.C.C.), University of Palermo, Palermo, Italy
| | - Vincenzo Gennusa
- Section of Medical Oncology, Department of Precision Medicine in Medical, Surgical and Critical Care (Me.Pre.C.C.), University of Palermo, Palermo, Italy
| | | | - Salvatore Vieni
- Division of General and Oncological Surgery, Department of Precision Medicine in Medical, Surgical and Critical Care (Me.Pre.C.C.), University of Palermo, Palermo, Italy
| | - Gianni Pantuso
- Division of General and Oncological Surgery, Department of Precision Medicine in Medical, Surgical and Critical Care (Me.Pre.C.C.), University of Palermo, Palermo, Italy
| | - Antonio Russo
- Section of Medical Oncology, Department of Precision Medicine in Medical, Surgical and Critical Care (Me.Pre.C.C.), University of Palermo, Palermo, Italy
| | - Viviana Bazan
- Department of Biomedicine, Neuroscience and Advanced Diagnostics, University of Palermo, Palermo, Italy
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Sierra-Díaz DC, Morel A, Fonseca-Mendoza DJ, Bravo NC, Molano-Gonzalez N, Borras M, Munevar I, Lema M, Idrobo H, Trujillo D, Serrano N, Orduz AI, Lopera D, González J, Rojas G, Londono-De Los Ríos P, Manneh R, Cabrera R, Rubiano W, de la Peña J, Quintero MC, Mantilla W, Restrepo CM. Germline mutations of breast cancer susceptibility genes through expanded genetic analysis in unselected Colombian patients. Hum Genomics 2024; 18:68. [PMID: 38890714 PMCID: PMC11184794 DOI: 10.1186/s40246-024-00623-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Accepted: 05/15/2024] [Indexed: 06/20/2024] Open
Abstract
BACKGROUND In Colombia and worldwide, breast cancer (BC) is the most frequently diagnosed neoplasia and the leading cause of death from cancer among women. Studies predominantly involve hereditary and familial cases, demonstrating a gap in the literature regarding the identification of germline mutations in unselected patients from Latin-America. Identification of pathogenic/likely pathogenic (P/LP) variants is important for shaping national genetic analysis policies, genetic counseling, and early detection strategies. The present study included 400 women with unselected breast cancer (BC), in whom we analyzed ten genes, using Whole Exome Sequencing (WES), know to confer risk for BC, with the aim of determining the genomic profile of previously unreported P/LP variants in the affected population. Additionally, Multiplex Ligation-dependent Probe Amplification (MLPA) was performed to identify Large Genomic Rearrangements (LGRs) in the BRCA1/2 genes. To ascertain the functional impact of a recurrent intronic variant (ATM c.5496 + 2_5496 + 5delTAAG), a minigene assay was conducted. RESULTS We ascertained the frequency of P/LP germline variants in BRCA2 (2.5%), ATM (1.25%), BRCA1 (0.75%), PALB2 (0.50%), CHEK2 (0.50%), BARD1 (0.25%), and RAD51D (0.25%) genes in the population of study. P/LP variants account for 6% of the total population analyzed. No LGRs were detected in our study. We identified 1.75% of recurrent variants in BRCA2 and ATM genes. One of them corresponds to the ATM c.5496 + 2_5496 + 5delTAAG. Functional validation of this variant demonstrated a splicing alteration probably modifying the Pincer domain and subsequent protein structure. CONCLUSION This study described for the first time the genomic profile of ten risk genes in Colombian women with unselected BC. Our findings underscore the significance of population-based research, advocating the consideration of molecular testing in all women with cancer.
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Affiliation(s)
- Diana Carolina Sierra-Díaz
- School of Medicine and Health Sciences, Center for Research in Genetics and Genomics (CIGGUR), Institute of Translational Medicine (IMT), Universidad Del Rosario, Bogotá, Colombia
| | - Adrien Morel
- School of Medicine and Health Sciences, Center for Research in Genetics and Genomics (CIGGUR), Institute of Translational Medicine (IMT), Universidad Del Rosario, Bogotá, Colombia
| | - Dora Janeth Fonseca-Mendoza
- School of Medicine and Health Sciences, Center for Research in Genetics and Genomics (CIGGUR), Institute of Translational Medicine (IMT), Universidad Del Rosario, Bogotá, Colombia
| | - Nora Contreras Bravo
- School of Medicine and Health Sciences, Center for Research in Genetics and Genomics (CIGGUR), Institute of Translational Medicine (IMT), Universidad Del Rosario, Bogotá, Colombia
| | - Nicolas Molano-Gonzalez
- Clinical Research Group, School of Medicine and Health Science, Universidad del Rosario, Bogotá, Colombia
| | - Mariana Borras
- Fundación Cardioinfantil, Instituto de Cardiología, Bogotá, Colombia
| | - Isabel Munevar
- Fundación Cardioinfantil, Instituto de Cardiología, Bogotá, Colombia
| | | | | | | | - Norma Serrano
- Hospital Internacional de Colombia HIC, Piedecuesta, Colombia
| | | | - Diego Lopera
- Oncólogos del Occidente S.A.S, Manizales, Colombia
| | | | - Gustavo Rojas
- Oncólogos del Occidente S.A.S, Manizales, Colombia
- Oncologos del Occidente SAS, Pereira, Colombia
| | | | - Ray Manneh
- SOHEC, Sociedad de Oncología y Hematología del Cesar, Valledupar, Colombia
| | - Rodrigo Cabrera
- School of Medicine and Health Sciences, Center for Research in Genetics and Genomics (CIGGUR), Institute of Translational Medicine (IMT), Universidad Del Rosario, Bogotá, Colombia
- Laboratorio de Biología Molecular y Pruebas Diagnósticas de Alta Complejidad, Fundación Cardioinfantil-Instituto de Cardiología, Bogotá, Colombia
| | | | | | | | - William Mantilla
- Fundación Cardioinfantil, Instituto de Cardiología, Bogotá, Colombia
- Fundación CTIC-Fundación Cardioinfantil, Instituto de Cardiología, Bogotá, Colombia
| | - Carlos M Restrepo
- School of Medicine and Health Sciences, Center for Research in Genetics and Genomics (CIGGUR), Institute of Translational Medicine (IMT), Universidad Del Rosario, Bogotá, Colombia.
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Limijadi EKS, Muniroh M, Prajoko YW, Tjandra KC, Respati DRP. The role of germline BRCA1 & BRCA2 mutations in familial pancreatic cancer: A systematic review and meta-analysis. PLoS One 2024; 19:e0299276. [PMID: 38809921 PMCID: PMC11135687 DOI: 10.1371/journal.pone.0299276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Accepted: 04/15/2024] [Indexed: 05/31/2024] Open
Abstract
BACKGROUND Familial Pancreatic Cancer (FPC) presents a notable risk, with 3-10% of pancreatic adenocarcinoma cases having a family history. Studies link FPC to syndromes like HBOC, suggesting BRCA1/BRCA2 mutations play a role. BRCA gene functions in DNA repair impact FPC management, influencing sensitivity to therapies like PARP inhibitors. Identifying mutations not only aids FPC treatment but also reveals broader cancer risks. However, challenges persist in selectively applying genetic testing due to cost constraints. This Systematic Review focuses on BRCA1/BRCA2 significance in FPC, diagnostic criteria, prognostic value, and limitations. METHOD Original articles published from 2013 to January 2023 were sourced from databases such as Scopus, PubMed, ProQuest, and ScienceDirect. Inclusion criteria comprised observational cohort or diagnostic studies related to the role of BRCA1/2 mutation in correlation to familial pancreatic cancer (FPC), while article reviews, narrative reviews, and non-relevant content were excluded. The assessment of bias used ROBINS-I, and the results were organized using PICOS criteria in a Google spreadsheet table. The systematic review adhered to the PRISMA 2020 checklist. RESULT We analyzed 9 diagnostic studies encompassing 1325 families and 4267 patients from Italy, USA, and Poland. Despite the limitation of limited homogenous PICO studies, our findings effectively present evidence. BRCA1/2 demonstrates benefits in detecting first-degree relatives FPC involvement with 2.26-10 times higher risk. These mutation findings also play an important role since with the BRCA1/2 targeted therapy, Poly-ADP Ribose Polymerase inhibitors (PARP) may give better outcomes of FPC treatment. Analysis of BRCA1 and BRCA2 administration's impact on odds ratio (OR) based on six and five studies respectively. BRCA1 exhibited non-significant effects (OR = 1.26, P = 0.51), while BRCA2 showed significance (OR = 1.68, P = 0.04). No heterogeneity observed, indicating consistent results. Further research on BRCA1 is warranted. CONCLUSION Detecting the BRCA1/2 mutation gene offers numerous advantages, particularly in its correlation with FPC. For diagnostic and prognostic purposes, testing is strongly recommended for first-degree relatives, who face a significantly higher risk (2.26-10 times) of being affected. Additionally, FPC patients with identified BRCA1/2 mutations exhibit a more favorable prognosis compared to the non-mutated population. This is attributed to the availability of targeted BRCA1/2 therapy, which maximizes treatment outcomes.
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Affiliation(s)
- Edward Kurnia Setiawan Limijadi
- Doctoral Study Program of Medical and Health Science, Universitas Diponegoro, Semarang, Indonesia
- Faculty of Medicine, Department of Clinical Pathology, Universitas Diopnegoro, Semarang, Indonesia
| | - Muflihatul Muniroh
- Faculty of Medicine, Department of Physiology, Universitas Diponegoro, Semarang, Indonesia
| | - Yan Wisnu Prajoko
- Faculty of Medicine, Department of Surgical Oncology, Universitas Diponegoro, Semarang, Indonesia
- Kariadi General Hospital, Semarang, Indonesia
| | - Kevin Christian Tjandra
- Kariadi General Hospital, Semarang, Indonesia
- Faculty of Medicine, Departement of Medicine, Universitas Diponegoro, Semarang, Indonesia
| | - Danendra Rakha Putra Respati
- Kariadi General Hospital, Semarang, Indonesia
- Faculty of Medicine, Departement of Medicine, Universitas Diponegoro, Semarang, Indonesia
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Freire MV, Martin M, Segers K, Sepulchre E, Leroi N, Coupier J, Kalantari HR, Wolter P, Collignon J, Polus M, Plomteux O, Josse C, Bours V. Digenic Inheritance of Mutations in Homologous Recombination Genes in Cancer Patients. J Pers Med 2024; 14:584. [PMID: 38929805 PMCID: PMC11204488 DOI: 10.3390/jpm14060584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2024] [Revised: 05/21/2024] [Accepted: 05/24/2024] [Indexed: 06/28/2024] Open
Abstract
BACKGROUND/OBJECTIVES BRCA1, BRCA2, ATM, and CHEK2 are known cancer predisposition genes (CPGs), but tumor risk in patients with simultaneous pathogenic variants (PVs) in CPGs remains largely unknown. In this study, we describe six patients from five families with multiple cancers who coinherited a combination of PVs in these genes. METHODS PVs were identified using NGS DNA sequencing and were confirmed by Sanger. RESULTS Families 1, 2, and 3 presented PVs in BRCA2 and ATM, family 4 in BRCA2 and BRCA1, and family 5 in BRCA2 and CHEK2. PVs were identified using NGS DNA sequencing and were confirmed by Sanger. The first family included patients with kidney, prostate, and breast cancer, in addition to pancreatic adenocarcinomas. In the second family, a female had breast cancer, while a male from the third family had prostate, gastric, and pancreatic cancer. The fourth family included a male with pancreatic cancer, and the fifth family a female with breast cancer. CONCLUSIONS The early age of diagnosis and the development of multiple cancers in the reported patients indicate a very high risk of cancer in double-heterozygous patients associated with PVs in HR-related CPGs. Therefore, in families with patients who differ from other family members in terms of phenotype, age of diagnosis, or type of cancer, the cascade testing needs to include the study of other CPGs.
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Affiliation(s)
- Maria Valeria Freire
- Department of Human Genetics, GIGA Research Center, University of Liège and CHU Liège, Av. Hippocrate 1/11, 4000 Liège, Belgium;
| | - Marie Martin
- Department of Human Genetics, CHU Liège, Domaine Universitaire, 4000 Liège, Belgium; (M.M.); (K.S.); (E.S.); (N.L.)
| | - Karin Segers
- Department of Human Genetics, CHU Liège, Domaine Universitaire, 4000 Liège, Belgium; (M.M.); (K.S.); (E.S.); (N.L.)
| | - Edith Sepulchre
- Department of Human Genetics, CHU Liège, Domaine Universitaire, 4000 Liège, Belgium; (M.M.); (K.S.); (E.S.); (N.L.)
| | - Natacha Leroi
- Department of Human Genetics, CHU Liège, Domaine Universitaire, 4000 Liège, Belgium; (M.M.); (K.S.); (E.S.); (N.L.)
| | - Jérôme Coupier
- Department of Human Genetics, CHU Liège, Domaine Universitaire, 4000 Liège, Belgium; (M.M.); (K.S.); (E.S.); (N.L.)
| | | | - Pascal Wolter
- Onco-Hematology Department, St Nikolaus Hospital, Hufengasse 4/8, 4700 Eupen, Belgium;
| | - Joëlle Collignon
- Department of Medical Oncology, GIGA Research Center, University of Liège and CHU Liège, Domaine Universitaire, 4000 Liège, Belgium; (J.C.); (C.J.)
| | - Marc Polus
- Department of Gastroenterology, CHU Liège, Av. Hippocrate 1/11, 4000 Liège, Belgium;
| | - Olivier Plomteux
- Gastro-Enterology Department, CHC, Boulevard Patience et Beaujonc 2, 4000 Liège, Belgium;
| | - Claire Josse
- Department of Medical Oncology, GIGA Research Center, University of Liège and CHU Liège, Domaine Universitaire, 4000 Liège, Belgium; (J.C.); (C.J.)
| | - Vincent Bours
- Department of Human Genetics, GIGA Research Center, University of Liège and CHU Liège, Av. Hippocrate 1/11, 4000 Liège, Belgium;
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7
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Mouren A, Chansavang A, Hamzaoui N, Srikaran A, Laurent-Puig P, Marisa L, De Percin S, Lupo A, Larousserie F, Blons H, L'Haridon A, Burnichon N, Pasmant E, Tlemsani C. A de novo germline pathogenic BRCA1 variant identified following an osteosarcoma pangenomic molecular analysis. Fam Cancer 2024:10.1007/s10689-024-00393-0. [PMID: 38763984 DOI: 10.1007/s10689-024-00393-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Accepted: 04/17/2024] [Indexed: 05/21/2024]
Abstract
De novo germline pathogenic variants (gPV) of the BReast CAncer 1 (BRCA1) gene are very rare. Only a few have been described up to date, usually in patients with a history of ovarian or breast cancer. Here, we report the first case of an incidental de novo BRCA1 germline pathogenic variant which was identified within the framework of the Plan France Médecine Génomique (PFMG) 2025 French national tumor sequencing program. The proband was a 29-year-old man diagnosed with metastatic osteosarcoma. Tumor whole exome sequencing identified a BRCA1 c.3756_3759del p.(Ser1253Argfs*10) pathogenic variant without loss-of-heterozygosity. A low genomic instability score and the absence of single base substitution signatures of homologous recombination deficiency suggested that the BRCA1 variant was not driver in the osteosarcoma tumorigenesis. Germline whole genome sequencing asserted the germline nature of this variant, with a 36% allele frequency, suggesting a mosaicism caused by a post-zygotic mutational event. The proband's family (parents and siblings) were not carriers of this variant confirming the de novo occurrence. Tumor sequencing programs like the French PFMG 2025 have been implemented worldwide and may help identify new gPV, including de novo variants.
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Affiliation(s)
- Adrien Mouren
- Department of Medical Oncology, Cochin Hospital, Paris Cancer Institute CARPEM, Université Paris Cité, APHP.Centre, Paris, France
| | - Albain Chansavang
- Department of Molecular Genetics, Fédération de Génétique et Médecine Génomique, Cochin Hospital, Université Paris Cité, APHP.Centre, Paris, France
- Institut Cochin, INSERM U1016, CNRS UMR8104, Université Paris Cité, CARPEM, Paris, France
| | - Nadim Hamzaoui
- Department of Molecular Genetics, Fédération de Génétique et Médecine Génomique, Cochin Hospital, Université Paris Cité, APHP.Centre, Paris, France
- Institut Cochin, INSERM U1016, CNRS UMR8104, Université Paris Cité, CARPEM, Paris, France
| | - Arunya Srikaran
- Department of Medical Oncology, Cochin Hospital, Paris Cancer Institute CARPEM, Université Paris Cité, APHP.Centre, Paris, France
| | - Pierre Laurent-Puig
- Institut du Cancer Paris Carpem, AP-HP, Genomic Medicine of Tumors and Cancers Department, Fédération de Génétique et Médecine Génomique, Université Paris Cité, APHP.Centre, Paris, France
- Centre de Recherche des Cordeliers, INSERM, CNRS SNC 5096, Université Paris Cité, Paris, France
| | | | - Sixtine De Percin
- Department of Medical Oncology, Cochin Hospital, Paris Cancer Institute CARPEM, Université Paris Cité, APHP.Centre, Paris, France
| | - Audrey Lupo
- Department of Pathology, Cochin Hospital, Paris Cancer Institute CARPEM, Université Paris Cité, APHP.Centre, Paris, France
| | - Frédérique Larousserie
- Department of Pathology, Cochin Hospital, Paris Cancer Institute CARPEM, Université Paris Cité, APHP.Centre, Paris, France
| | - Hélène Blons
- Institut du Cancer Paris Carpem, AP-HP, Genomic Medicine of Tumors and Cancers Department, Fédération de Génétique et Médecine Génomique, Université Paris Cité, APHP.Centre, Paris, France
- Centre de Recherche des Cordeliers, INSERM, CNRS SNC 5096, Université Paris Cité, Paris, France
| | | | - Nelly Burnichon
- Institut du Cancer Paris Carpem, AP-HP, Genomic Medicine of Tumors and Cancers Department, Fédération de Génétique et Médecine Génomique, Université Paris Cité, APHP.Centre, Paris, France
| | - Eric Pasmant
- Department of Molecular Genetics, Fédération de Génétique et Médecine Génomique, Cochin Hospital, Université Paris Cité, APHP.Centre, Paris, France
- Institut Cochin, INSERM U1016, CNRS UMR8104, Université Paris Cité, CARPEM, Paris, France
| | - Camille Tlemsani
- Department of Medical Oncology, Cochin Hospital, Paris Cancer Institute CARPEM, Université Paris Cité, APHP.Centre, Paris, France.
- Institut Cochin, INSERM U1016, CNRS UMR8104, Université Paris Cité, CARPEM, Paris, France.
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Grigore LG, Radoi VE, Serban A, Mihai AD, Stoica I. The Molecular Detection of Germline Mutations in the BRCA1 and BRCA2 Genes Associated with Breast and Ovarian Cancer in a Romanian Cohort of 616 Patients. Curr Issues Mol Biol 2024; 46:4630-4645. [PMID: 38785549 PMCID: PMC11119367 DOI: 10.3390/cimb46050281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 05/07/2024] [Accepted: 05/10/2024] [Indexed: 05/25/2024] Open
Abstract
The objective of this study was to identify and classify the spectrum of mutations found in the BRCA1 and BRCA2 genes associated with breast and ovarian cancer in female patients in Romania. Germline BRCA1 and BRCA2 mutations were investigated in a cohort of 616 female patients using NGS and/or MLPA methods followed by software-based data analysis and classification according to international guidelines. Out of the 616 female patients included in this study, we found that 482 patients (78.2%) did not have any mutation present in the two genes investigated; 69 patients (11.2%) had a BRCA1 mutation, 34 (5.5%) had a BRCA2 mutation, and 31 (5%) presented different type of mutations with uncertain clinical significance, moderate risk or a large mutation in the BRCA1 gene. Our investigation indicates the most common mutations in the BRCA1 and BRCA2 genes, associated with breast and ovarian cancer in the Romanian population. Our results also bring more data in support of the frequency of the c.5266 mutation in the BRCA1 gene, acknowledged in the literature as a founder mutation in Eastern Europe. We consider that the results of our study will provide necessary data regarding BRCA1 and BRCA2 mutations that would help to create a genetic database for the Romanian population.
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Affiliation(s)
- Liliana-Georgiana Grigore
- Doctoral School of Biology, Faculty of Biology, University of Bucharest, 030018 Bucharest, Romania
- Personal Genetics, 010987 Bucharest, Romania
| | - Viorica-Elena Radoi
- Department of Medical Genetics, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania
- “Alessandrescu-Rusescu” National Institute for Maternal and Child Health, 20382 Bucharest, Romania
| | | | | | - Ileana Stoica
- Department of Genetics, Faculty of Biology, University of Bucharest, 030018 Bucharest, Romania
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Nakamura H, Mizumoto S, Tanino H, Niwa Y, Ogino M, Sakoda Y, Tsuchiya K, Kono S, Konishi M, Ueno S, Kunihisa T. High Frequency of BRCA2 c.5576_5579del Carriers in Kakogawa, Japan. CANCER DIAGNOSIS & PROGNOSIS 2024; 4:309-314. [PMID: 38707742 PMCID: PMC11062150 DOI: 10.21873/cdp.10325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 03/19/2024] [Indexed: 05/07/2024]
Abstract
Background/Aim Certain germline pathogenic variants (PVs), known as founder mutations, have been frequently observed in specific regions and ethnic groups. In Japan, several pathogenic variants of BRCA1/2 have been identified as founder mutations, with their distribution varying across different regions. This retrospective study aimed to further investigate the detailed distribution and correlation between genotype and clinical features among breast cancer patients. Patients and Methods This study was conducted at Kobe University Hospital and three collaborating institutions. It included breast cancer patients who underwent BRCA1/2 genetic testing between July 1, 2018, and March 31, 2021, and were found to have germline PVs. Clinical characteristics and breast cancer subtypes were compared between carriers of BRCA2 c.5576_5579del and those with other PVs. Additionally, the detection rate of BRCA2 c.5576_5579del was compared with that observed in a previous report. Results A total of 38 breast cancer patients were included; PVs in BRCA1 and BRCA2 were detected in 12 and 26 patients, respectively, 12 of whom were BRCA2 c.5576_5579del carriers. BRCA2 c.5576_5579del carriers were more likely to develop triple negative breast cancers among all BRCA2 PV carriers. BRCA2 c.5576_5579del accounted for 30.8% of the PVs detected, with a particularly high frequency of 72.7% at Kakogawa Central City Hospital. Conclusion BRCA2 c.5576_5579del was detected with a particularly high frequency in Hyogo Prefecture, especially in Kakogawa city. In the future, a survey of the distribution of the BRCA2 c.5576_5579del carriers may provide more clarity regarding their localization.
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Affiliation(s)
- Haruna Nakamura
- Department of Breast Surgery, Kakogawa Central City Hospital, Kakogawa, Japan
- Division of Breast and Endocrine Surgery, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Sachiko Mizumoto
- Division of Breast and Endocrine Surgery, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Hirokazu Tanino
- Department of Thoracic and Cardiovascular Surgery, Wakayama Medical University, Wakayama, Japan
| | - Yui Niwa
- Department of Clinical Genetics, Kobe University Hospital, Kobe, Japan
- Department of Medical Genetics, Nara Prefecture General Medical Center, Nara, Japan
| | - Mitsutoshi Ogino
- Department of Breast Surgery, Kakogawa Central City Hospital, Kakogawa, Japan
| | - Yoko Sakoda
- Department of Breast Surgery, Kakogawa Central City Hospital, Kakogawa, Japan
| | - Kazuhiko Tsuchiya
- Department of Breast Surgery, Kakogawa Central City Hospital, Kakogawa, Japan
| | - Seishi Kono
- Department of Breast Surgery, Hyogo Prefectural Harima-Himeji General Medical Center, Himeji, Japan
| | - Muneharu Konishi
- Department of Surgery, Hyogo Prefectural Nishinomiya Hospital, Nishinomiya, Japan
| | - Sayaka Ueno
- Department of Genomic Medicine, School of Medicine, Fujita Health University, Toyoake, Japan
| | - Tomonari Kunihisa
- Division of Breast and Endocrine Surgery, Graduate School of Medicine, Kobe University, Kobe, Japan
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10
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Idogawa M, Mariya T, Tanaka Y, Saito T, Nakase H, Tokino T, Sakurai A. The frequency and pathogenicity of BRCA1 and BRCA2 variants in the general Japanese population. J Hum Genet 2024; 69:225-230. [PMID: 38409497 DOI: 10.1038/s10038-024-01233-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 02/14/2024] [Accepted: 02/16/2024] [Indexed: 02/28/2024]
Abstract
Hereditary breast and ovarian cancer syndrome (HBOC) resulting from pathogenic variants of BRCA1 or BRCA2 is the most common and well-documented hereditary tumor. Although founder variants have been identified in population-based surveys in various countries, the types of variants are not uniform across races and regions. Recently, the Tohoku Medical Megabank Organization (ToMMo) released whole-genome sequence data including approximately 54,000 individuals from the general population of the Tohoku area in Japan. We analyzed these data and comprehensively identified the prevalence of BRCA1/2 pathogenic and truncating variants. We believe that an accurate understanding of the unique distribution and characteristics of pathogenic BRCA1/2 variants in Japan through this analysis will enable better surveillance and intervention for HBOC patients, not only in Japan but also worldwide.
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Affiliation(s)
- Masashi Idogawa
- Department of Medical Genome Sciences, Cancer Research Institute, Sapporo Medical University School of Medicine, Sapporo, Japan.
- Department of Gastroenterology and Hepatology, Sapporo Medical University School of Medicine, Sapporo, Japan.
| | - Tasuku Mariya
- Department of Medical Genetics and Genomics, Sapporo Medical University School of Medicine, Sapporo, Japan
- Department of Obstetrics and Gynecology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Yumi Tanaka
- Department of Medical Genetics and Genomics, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Tsuyoshi Saito
- Department of Obstetrics and Gynecology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Hiroshi Nakase
- Department of Gastroenterology and Hepatology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Takashi Tokino
- Department of Medical Genome Sciences, Cancer Research Institute, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Akihiro Sakurai
- Department of Medical Genetics and Genomics, Sapporo Medical University School of Medicine, Sapporo, Japan
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11
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McDevitt T, Durkie M, Arnold N, Burghel GJ, Butler S, Claes KBM, Logan P, Robinson R, Sheils K, Wolstenholme N, Hanson H, Turnbull C, Hume S. EMQN best practice guidelines for genetic testing in hereditary breast and ovarian cancer. Eur J Hum Genet 2024; 32:479-488. [PMID: 38443545 PMCID: PMC11061103 DOI: 10.1038/s41431-023-01507-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 11/07/2023] [Accepted: 11/21/2023] [Indexed: 03/07/2024] Open
Abstract
Hereditary Breast and Ovarian Cancer (HBOC) is a genetic condition associated with increased risk of cancers. The past decade has brought about significant changes to hereditary breast and ovarian cancer (HBOC) diagnostic testing with new treatments, testing methods and strategies, and evolving information on genetic associations. These best practice guidelines have been produced to assist clinical laboratories in effectively addressing the complexities of HBOC testing, while taking into account advancements since the last guidelines were published in 2007. These guidelines summarise cancer risk data from recent studies for the most commonly tested high and moderate risk HBOC genes for laboratories to refer to as a guide. Furthermore, recommendations are provided for somatic and germline testing services with regards to clinical referral, laboratory analyses, variant interpretation, and reporting. The guidelines present recommendations where 'must' is assigned to advocate that the recommendation is essential; and 'should' is assigned to advocate that the recommendation is highly advised but may not be universally applicable. Recommendations are presented in the form of shaded italicised statements throughout the document, and in the form of a table in supplementary materials (Table S4). Finally, for the purposes of encouraging standardisation and aiding implementation of recommendations, example report wording covering the essential points to be included is provided for the most common HBOC referral and reporting scenarios. These guidelines are aimed primarily at genomic scientists working in diagnostic testing laboratories.
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Affiliation(s)
- Trudi McDevitt
- Department of Clinical Genetics, Children's Health Ireland at Crumlin, Dublin, Ireland.
| | - Miranda Durkie
- Sheffield Diagnostic Genetics Service, North East and Yorkshire Genomic Laboratory Hub, Sheffield Children's NHS Foundation Trust Western Bank, Sheffield, UK
| | - Norbert Arnold
- UKSH Campus Kiel, Gynecology and Obstetrics, Institut of Clinical Chemistry, Institut of Clinical Molecular Biology, Kiel, Germany
| | - George J Burghel
- Manchester University NHS Foundation Trust, North West Genomic Laboratory Hub, Manchester, UK
| | - Samantha Butler
- Central and South Genomic Laboratory Hub, West Midlands Regional Genetics Laboratory, Birmingham Women's and Children's NHS Foundation Trust, Birmingham, UK
| | | | - Peter Logan
- HSCNI / Belfast Trust Laboratories, Regional Molecular Diagnostics Service, Belfast, Northern Ireland
| | - Rachel Robinson
- Leeds Teaching Hospitals NHS Trust, Genetics Department, Leeds, UK
| | | | | | - Helen Hanson
- St George's University Hospitals NHS Foundation Trust, Clinical Genetics, London, UK
| | | | - Stacey Hume
- University of British Columbia, Pathology and Laboratory Medicine, Vancouver, British Columbia, Canada
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12
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Andaluz S, Zhao B, Sinha S, Lagniton PNP, Costa DA, Ding X, Brito M, Wang SM. Using Portuguese BRCA pathogenic variation as a model to study the impact of human admixture on human health. BMC Genomics 2024; 25:416. [PMID: 38671360 PMCID: PMC11055274 DOI: 10.1186/s12864-024-10311-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Accepted: 04/15/2024] [Indexed: 04/28/2024] Open
Abstract
BACKGROUND Admixture occurs between different ethnic human populations. The global colonization in recent centuries by Europeans led to the most significant admixture in human history. While admixture may enhance genetic diversity for better fitness, it may also impact on human health by transmitting genetic variants for disease susceptibility in the admixture population. The admixture by Portuguese global exploration initiated in the 15th century has reached over 20 million of Portuguese-heritage population worldwide. It provides a valuable model to study the impact of admixture on human health. BRCA1 and BRCA2 (BRCA) are two of the important tumor suppressor genes. The pathogenic variation (PV) in BRCA is well determined to cause high risk of hereditary breast and ovarian cancer. Tracing the distribution of Portuguese BRCA PV in Portuguese-heritage population will help to understand the impact of admixture on cancer susceptibility in modern humans. In this study, we analyzed the distribution of the Portuguese-originated BRCA variation in Brazilian population, which has high degree Portuguese-heritage. METHODS By comprehensive data mining, standardization and annotation, we generated a Portuguese-derived BRCA variation dataset and a Brazilian-derived BRCA variation dataset. We compared the two BRCA variation datasets to identify the BRCA variants shared between the two populations. RESULTS The Portuguese-derived BRCA variation dataset consists of 220 BRCA variants including 78 PVs from 11,482 Portuguese cancer patients, 93 (42.2%) in BRCA1 and 127 (57.7%) in BRCA2. Of the 556 Portuguese BRCA PV carriers carrying the 78 PVs, 331 (59.5%) carried the three Portuguese-BRCA founder PVs of BRCA1 c.2037delinsCC, BRCA1 c.3331_3334del and BRCA2 c.156_157insAlu. The Brazilian-derived BRCA variation dataset consists of 255 BRCA PVs from 7,711 cancer patients, 136 (53.3%) in BRCA1 and 119 (46.6%) in BRCA2. We developed an open database named dbBRCA-Portuguese ( https://genemutation.fhs.um.edu.mo/dbbrca-portuguese/ ) and an open database named dbBRCA-Brazilian ( https://genemutation.fhs.um.edu.mo/dbbrca-brazilian ) to host the BRCA variation data from Portuguese and Brazilian populations. We compared the BRCA PV datasets between Portuguese and Brazilian populations, and identified 29 Portuguese-specific BRCA PVs shared between Portuguese and Brazilian populations, 14 in BRCA1 including the Portuguese founder BRCA1 c.3331_3334del and BRCA1 c.2037delinsCC, and 15 in BRCA2 including the Portuguese founder BRCA2 c.156_157insAlu. Searching the 78 Portuguese BRCA PVs in over 5,000 ancient human genomes identified evolution origin for only 8 PVs in Europeans dated between 37,470 and 3,818 years before present, confirming the Portuguese-specificity of Portuguese BRCA PVs; comparing the 78 Portuguese BRCA PVs Portuguese, 255 Brazilian BRCA PVs, and 134 African BRCA PVs showed little overlapping, ruling out the possibility that the BRCA PVs shared between Portuguese and Brazilian may also be contributed by African. CONCLUSION Our study provides evidence that the admixture in recent human history contributed to cancer susceptibility in modern humans.
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Affiliation(s)
- Stephanie Andaluz
- Ministry of Education Frontiers Science Center for Precision Oncology, Cancer Center and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Macao SRA, China
| | - Bojin Zhao
- Ministry of Education Frontiers Science Center for Precision Oncology, Cancer Center and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Macao SRA, China
| | - Siddharth Sinha
- Ministry of Education Frontiers Science Center for Precision Oncology, Cancer Center and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Macao SRA, China
| | - Philip Naderev Panuringan Lagniton
- Ministry of Education Frontiers Science Center for Precision Oncology, Cancer Center and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Macao SRA, China
| | - Diogo Alpuim Costa
- Medical Oncology Department, Hospital de Cascais, Cascais; Haematology and Oncology Department, CUF Oncologia, Lisbon; NOVA Medical School, Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, Lisbon, Portugal
| | - Xiaofan Ding
- Ministry of Education Frontiers Science Center for Precision Oncology, Cancer Center and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Macao SRA, China
| | - Miguel Brito
- Escola Superior de Tecnologia da Saúde de Lisboa, Instituto Politécnico de Lisboa, Lisbon, Portugal.
| | - San Ming Wang
- Ministry of Education Frontiers Science Center for Precision Oncology, Cancer Center and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Macao SRA, China.
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Zhang Z, Liu Y, Xu Y, Xu Z, Jia J, Jin Y, Wang W, Liu L. Abrogation of KLF5 sensitizes BRCA1-proficient pancreatic cancer to PARP inhibition. Acta Biochim Biophys Sin (Shanghai) 2024; 56:576-585. [PMID: 38433576 DOI: 10.3724/abbs.2023288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2024] Open
Abstract
Poly ADP-ribose polymerase (PARP) inhibitor monotherapies are selectively effective in patients with pancreatic, breast, prostate, and ovarian cancers with BRCA1 mutations. Cancer patients with more frequent wild-type BRCA show poor responses to PARP inhibitors. Moreover, patients who are initially sensitive to these inhibitors eventually respond poorly to drugs. In the present study, we discover that abrogation of Kruppel-like factor 5 (KLF5) significantly inhibits homologous recombination, which is the main mechanism for DNA double-stranded repair. Furthermore, the downregulation of KLF5 expression promotes the DNA damage induced by olaparib and significantly reduces the IC 50 of the RARP inhibitor in pancreatic cancer cells. Overexpression of BRCA1 reverses the above effects caused by silencing of KLF5. Olaparib combined with a KLF5 inhibitor has an enhanced cytotoxic effect. Mechanistically, we identify BRCA1 as a KLF5 target gene. BRCA1 is positively correlated with KLF5 in PDAC tissue. Our results indicate that inhibition of KLF5 may induce BRCAness in a larger pancreatic cancer subset with proficient BRCA. The combination of KLF5 inhibitors and PARP inhibitors provides a novel treatment strategy to enhance the sensitivity of BRCA1-proficient pancreatic cancer to PARP inhibitors.
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Affiliation(s)
- Zheng Zhang
- Department of Pancreatic Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- Cancer Center, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Yuxin Liu
- Institute of Liver Diseases, Shanxi Medical University, Taiyuan 030001, China
| | - Yaolin Xu
- Department of Pancreatic Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- Cancer Center, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Zijin Xu
- Department of General Surgery, Qingpu Branch of Zhongshan Hospital Affiliated to Fudan University, Shanghai, 201700, China
| | - Jinbin Jia
- Institute of Liver Diseases, Shanxi Medical University, Taiyuan 030001, China
| | - Yun Jin
- Department of Hepatobiliary and Pancreatic Surgery, the First People's Hospital of Yunnan Province, the Affiliated Hospital of Kunming University of Science and Technology, Kunming 650500, China
| | - Wenquan Wang
- Department of Pancreatic Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- Cancer Center, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Liang Liu
- Department of Pancreatic Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- Cancer Center, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China
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Dreikhausen L, Klupsch A, Wiest I, Xiao Q, Schulte N, Betge J, Boch T, Brochhausen C, Gaiser T, Hofheinz RD, Ebert M, Zhan T. Clinical impact of panel gene sequencing on therapy of advanced cancers of the digestive system: a retrospective, single center study. BMC Cancer 2024; 24:526. [PMID: 38664720 PMCID: PMC11046933 DOI: 10.1186/s12885-024-12261-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 04/15/2024] [Indexed: 04/28/2024] Open
Abstract
BACKGROUND Panel gene sequencing is an established diagnostic tool for precision oncology of solid tumors, but its utility for the treatment of cancers of the digestive system in clinical routine is less well documented. METHODS We retrospectively identified patients with advanced or metastatic gastrointestinal, pancreaticobiliary or hepatic cancers who received panel gene sequencing at a tertiary university hospital from 2015 to 2022. For these cases, we determined the spectrum of genetic alterations, clinicopathological parameters and treatment courses. Assessment of actionability of genetic alterations was based on the OncoKB database, cancer-specific ESMO treatment guidelines, and recommendations of the local molecular tumor board. RESULTS In total, 155 patients received panel gene sequencing using either the Oncomine Focus (62 cases), Comprehensive (91 cases) or Childhood Cancer Research Assay (2 cases). The mean age of patients was 61 years (range 24-90) and 37% were female. Most patients suffered from either colorectal cancer (53%) or cholangiocellular carcinoma (19%). 327 genetic alterations were discovered in 123 tumor samples, with an average number of 2.1 alterations per tumor. The most frequently altered genes were TP53, KRAS and PIK3CA. Actionable gene alterations were detected in 13.5-56.8% of tumors, according to ESMO guidelines or the OncoKB database, respectively. Thirteen patients were treated with targeted therapies based on identified molecular alterations, with a median progression-free survival of 8.8 months. CONCLUSIONS Actionable genetic alterations are frequently detected by panel gene sequencing in patients with advanced cancers of the digestive tract, providing clinical benefit in selected cases. However, for the majority of identified actionable alterations, sufficient clinical evidence for targeted treatments is still lacking.
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Affiliation(s)
- Lena Dreikhausen
- Department of Medicine II, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Anna Klupsch
- Department of Medicine II, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Isabella Wiest
- Department of Medicine II, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Qiyun Xiao
- Department of Medicine II, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Nadine Schulte
- Department of Medicine II, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Johannes Betge
- Department of Medicine II, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
- Junior Clinical Cooperation Unit Translational Gastrointestinal Oncology and Preclinical Models, German Cancer Research Center, Heidelberg, Germany
- Mannheim Cancer Center, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
- Medical Faculty Mannheim, DKFZ-Hector Cancer Institute, Heidelberg University, Mannheim, Germany
| | - Tobias Boch
- Department of Medicine III, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
- Medical Faculty Mannheim, DKFZ-Hector Cancer Institute, Heidelberg University, Mannheim, Germany
| | - Christoph Brochhausen
- Institute of Pathology, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Timo Gaiser
- Institute of Pathology, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Ralf-Dieter Hofheinz
- Mannheim Cancer Center, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
- Department of Medicine III, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Matthias Ebert
- Department of Medicine II, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
- Mannheim Cancer Center, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
- Medical Faculty Mannheim, DKFZ-Hector Cancer Institute, Heidelberg University, Mannheim, Germany
| | - Tianzuo Zhan
- Department of Medicine II, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany.
- Mannheim Cancer Center, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany.
- Medical Faculty Mannheim, DKFZ-Hector Cancer Institute, Heidelberg University, Mannheim, Germany.
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15
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de Oliveira Ferreira C, Carneiro VCG, Araujo Mariz C. Germline mutations in BRCA1 and BRCA2 among Brazilian women with ovarian cancer treated in the Public Health System. BMC Cancer 2024; 24:499. [PMID: 38641594 PMCID: PMC11027424 DOI: 10.1186/s12885-024-12246-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Accepted: 04/10/2024] [Indexed: 04/21/2024] Open
Abstract
BACKGROUND Germline mutations in BRCA1 and BRCA2 genes are among the main causes of hereditary ovarian cancer. Identifying these mutations may reduce cancer risk, facilitate early detection, and enable personalized treatment. However, genetic testing is limited in the Brazilian Public Health System, and data regarding germline mutations in many regions are scarce. Therefore, the study aimed to investigate the prevalence of germline mutations in BRCA1 and BRCA2 in women with ovarian cancer treated in the Public Health System in Pernambuco, Brazil. METHODS A cross-sectional study was conducted in the Hereditary Cancer Program from two reference oncological centers in Pernambuco. Women (n = 45) with high-grade serous ovarian cancer underwent genetic counseling and DNA sequencing for BRCA1 and BRCA2 genes. RESULTS The prevalence of deleterious mutations in the BRCA1 and BRCA2 genes was 33%. Of the 15 germline mutations found, 13 were in BRCA1 and 2 in BRCA2; two mutations of unknown clinical significance were also found in BRCA2. Mutations c.5266dupC and c.2215 A > T were the most frequent; each was mutation observed in three patients. Additionally, the mutations c.7645dupT and c.921dupT were reported for the first time. CONCLUSION One in three women showed a pathogenic mutation, demonstrating a significant prevalence of germline mutations in this sample. Additionally, the small sample revealed an interesting number of mutations, indicating the need to explore more regions of the country.
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Affiliation(s)
| | - Vandré Cabral Gomes Carneiro
- Hospital de Câncer de Pernambuco, Recife, Pernambuco, Brazil
- Instituto de Medicina Integral Professor Fernando Figueira, Recife, Pernambuco, Brazil
| | - Carolline Araujo Mariz
- Instituto Aggeu Magalhães, FIOCRUZ, Recife, Pernambuco, Brazil.
- Faculdade de Medicina de Olinda, Olinda, Pernambuco, Brazil.
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Wu Z, Zhang Q, Jin Y, Zhang X, Chen Y, Yang C, Tang X, Jiang H, Wang X, Zhou X, Yu F, Wang B, Guan M. Population-based BRCA germline mutation screening in the Han Chinese identifies individuals at risk of BRCA mutation-related cancer: experience from a clinical diagnostic center from greater Shanghai area. BMC Cancer 2024; 24:411. [PMID: 38566028 PMCID: PMC10988807 DOI: 10.1186/s12885-024-12089-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 03/06/2024] [Indexed: 04/04/2024] Open
Abstract
BACKGROUND Deleterious BRCA1/2 (BRCA) mutation raises the risk for BRCA mutation-related malignancies, including breast, ovarian, prostate, and pancreatic cancer. Germline variation of BRCA exhibits substantial ethnical diversity. However, there is limited research on the Chinese Han population, constraining the development of strategies for BRCA mutation screening in this large ethnic group. METHODS We profile the BRCA mutational spectrum, including single nucleotide variation, insertion/deletion, and large genomic rearrangements in 2,080 apparently healthy Chinese Han individuals and 522 patients with BRCA mutation-related cancer, to determine the BRCA genetic background of the Chinese Han population, especially of the East Han. Incident cancer events were monitored in 1,005 participants from the healthy group, comprising 11 BRCA pathogenic/likely pathogenic (PLP) variant carriers and 994 PLP-free individuals, including 3 LGR carriers. RESULTS Healthy Chinese Han individuals demonstrated a distinct BRCA mutational spectrum compared to cancer patients, with a 0.53% (1 in 189) prevalence of pathogenic/likely pathogenic (PLP) variant, alongside a 3 in 2,080 occurrence of LGR. BRCA1 c. 5470_5477del demonstrated high prevalence (0.44%) in the North Han Chinese and penetrance for breast cancer. None of the 3 LGR carriers developed cancer during the follow-up. We calculated a relative risk of 135.55 (95% CI 25.07 to 732.88) for the development of BRCA mutation-related cancers in the BRCA PLP variant carriers (mean age 42.91 years, median follow-up 10 months) compared to PLP-free individuals (mean age 48.47 years, median follow-up 16 months). CONCLUSION The unique BRCA mutational profile in the Chinese Han highlights the potential for standardized population-based BRCA variant screening to enhance BRCA mutation-related cancer prevention and treatment.
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Affiliation(s)
- Zhiyuan Wu
- Department of Laboratory Medicine, Huashan Hospital, Fudan University, 200040, Shanghai, China
| | - Qingyun Zhang
- Central Laboratory, Huashan Hospital, Fudan University, 200040, Shanghai, China
| | - Yiting Jin
- Department of General Surgery, Huashan Hospital, Fudan University, 200040, Shanghai, China
| | - Xinju Zhang
- Central Laboratory, Huashan Hospital, Fudan University, 200040, Shanghai, China
| | - Yanli Chen
- Department of Laboratory Medicine, Huashan Hospital, Fudan University, 200040, Shanghai, China
| | - Can Yang
- Department of Laboratory Medicine, Huashan Hospital, Fudan University, 200040, Shanghai, China
| | - Xuemei Tang
- Central Laboratory, Huashan Hospital, Fudan University, 200040, Shanghai, China
| | - Haowen Jiang
- Department of Urology, Huashan Hospital, Fudan University, 200040, Shanghai, China
| | - Xiaoyi Wang
- Department of Pancreatic Surgery, Huashan Hospital, Fudan University, 200040, Shanghai, China
| | - Xinli Zhou
- Department of Oncology, Huashan Hospital, Fudan University, 200040, Shanghai, China
| | - Feng Yu
- Health Management Center, Huashan Hospital, Fudan University, 200040, Shanghai, China
| | - Bing Wang
- Health Management Center, Huashan Hospital, Fudan University, 200040, Shanghai, China.
| | - Ming Guan
- Department of Laboratory Medicine, Huashan Hospital, Fudan University, 200040, Shanghai, China.
- Central Laboratory, Huashan Hospital, Fudan University, 200040, Shanghai, China.
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17
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Kabeya V, Puthussery S, Furmanski A. Barriers and facilitators to genetic testing for breast and ovarian cancer amongst Black African women in Luton (UK). J Genet Couns 2024; 33:425-444. [PMID: 37403830 DOI: 10.1002/jgc4.1742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 04/22/2023] [Accepted: 05/28/2023] [Indexed: 07/06/2023]
Abstract
Evidence suggests that although Black African women have the lowest incidence of breast and ovarian cancer, they have the highest mortality rate and low rates of uptake for cancer screening services for these conditions in the United Kingdom (UK). This study aimed to explore the perceived barriers and facilitators to genetic testing for breast and ovarian cancer amongst Black African women in Luton (UK). We conducted a qualitative study that included one face-to-face and five telephone focus group discussions. Consistent with the health belief model, a focus group discussion guide was developed. A total of 24 participants, aged 23-57 who self-identified as Black African women and who were English speakers residing in Luton, took part in the focus group discussions. Purposive and snowballing sampling were used to recruit the participants for this study. The focus group discussions were recorded, transcribed per verbatim, coded and analyzed using an inductive thematic analysis approach, and the findings were classified. Nine themes emerged from the narratives obtained including six barriers and three facilitators. Barriers to genetic testing included (1) Cost and affordability, (2) Lack of knowledge, awareness, and family health history knowledge, (3) Language barrier, immigration, and distrust in western healthcare services, (4) Fear, (5) Cultural, religious, and intergenerational views and perceptions, and (6) Eligibility for genetic testing for the BRCA1/2 pathogenic variants and a lack of referral to specialist genetic clinics. Facilitators to genetic testing included (7) Availability of tests cost-free under the National Health Service (NHS) (8) Family members' health and (9) Awareness and education on genetic testing. The barriers and facilitators identified could enable policy makers and healthcare services alike to gain a better understanding of the factors influencing Black African women's decision-making process toward genetic testing. Ultimately, this work can inform interventions aiming to increase the uptake of genetic testing among this group.
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Affiliation(s)
- Valencia Kabeya
- Maternal and Child Health Research Centre, Institute for Health Research, University of Bedfordshire, Luton, UK
| | - Shuby Puthussery
- Maternal and Child Health Research Centre, Institute for Health Research, University of Bedfordshire, Luton, UK
| | - Anna Furmanski
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
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18
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De Matteis E, Tumolo MR, Tarantino P, Ciccarese M, Grassi T, Bagordo F, De Giorgio MR, Rizzo E, Ronzino G. Prevalence and spectrum of germline BRCA1 and BRCA2 in a cohort of ovarian cancer patients from the Salento peninsula (Southern Italy): a matter of preventive health. Oncotarget 2024; 15:134-141. [PMID: 38386807 PMCID: PMC10883683 DOI: 10.18632/oncotarget.28561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Accepted: 01/23/2024] [Indexed: 02/24/2024] Open
Abstract
OBJECTIVES The aim of this exploratory, descriptive study was to characterize the deleterious BRCA1 and BRCA2 variants evaluated by genetic testing in a group of Ovarian cancer patients living in the Salento peninsula (Southern Italy). METHODS From June 2014 to July 2023, patients with histologically confirmed high-grade serous carcinoma, fallopian tube, or primary peritoneal cancer who were referred to Lecce Familial Cancer Clinic were considered. BRCA-mutation genetic testing was performed on these patients. Socio-demographic data and cancer epidemiology were assessed, and Next Generation Sequencing and Sanger DNA sequencing were performed. RESULTS The median age at the diagnosis of 332 ovarian cancer patients collected was 57 years. The pedigree analyses showed that 28.6% had familial cases and 39.7% had sporadic cases. Of the 319 patients submitted to genetic testing, 29.8% were carriers of BRCA1/2 mutation, 75.8% at BRCA1 and 24.2% at BRCA2 gene. Of the 21 BRCA1 mutations, the variant c.5266dupC was the most frequent alteration (28.4%). With respect to BRCA2, 13 mutations were found and the variant c.9676delT was the most frequently recorded (6.3%). CONCLUSIONS This study reveals that the prevalence of germline mutations in the BRCA1 and BRCA2 genes was higher than reported by other studies. A broader understanding of the prevalence and role of BRCA mutations in development, response to treatment, and prognosis represents an exciting and developing area of ovarian cancer treatment and prevention.
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Affiliation(s)
| | - Maria Rosaria Tumolo
- Department of Biological and Environmental Sciences and Technology, University of Salento, Lecce, Italy
| | - Paolo Tarantino
- U.O.C. Medical Genetics, “Vito Fazzi” Hospital, Lecce, Italy
| | | | - Tiziana Grassi
- Department of Biological and Environmental Sciences and Technology, University of Salento, Lecce, Italy
| | - Francesco Bagordo
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari “Aldo Moro”, Bari, Italy
| | | | - Emanuele Rizzo
- Department of Biological and Environmental Sciences and Technology, University of Salento, Lecce, Italy
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19
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Ratnaparkhi R, Javellana M, Jewell A, Spoozak L. Evaluation of Homologous Recombination Deficiency in Ovarian Cancer. Curr Treat Options Oncol 2024; 25:237-260. [PMID: 38300479 DOI: 10.1007/s11864-024-01176-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/03/2024] [Indexed: 02/02/2024]
Abstract
OPINION STATEMENT Homologous recombination deficiency (HRD) is an important biomarker guiding selection of ovarian cancer patients who will derive the most benefit from poly(ADP-ribose) polymerase inhibitors (PARPi). HRD prevents cells from repairing double-stranded DNA damage with high fidelity, PARPis limit single-stranded repair, and together these deficits induce synthetic lethality. Germline or somatic BRCA mutations represent the narrowest definition of HRD, but do not reflect all patients who will have a durable PARPi response. HRD can also be defined by its downstream consequences, which are measured by different metrics depending on the test used. Ideally, all patients will undergo genetic counseling and germline testing shortly after diagnosis and have somatic testing sent once an adequate tumor sample is available. Should barriers to one test be higher, pursuing germline testing with reflex to somatic testing for BRCA wildtype patients or somatic testing first strategies are both evidence-based. Ultimately both tests offer complementary information, germline testing should be pursued for any patient with a history of ovarian cancer, and somatic testing is valuable at recurrence if not performed in the upfront setting. There is a paucity of data to suggest superiority of one germline or somatic assay; therefore, selection should optimize turnaround time, cost to patients, preferred result format, and logistical burden. Each clinic should implement a standard testing strategy for all ovarian cancer patients that ensures HRD status is known at the time of upfront chemotherapy completion to facilitate comprehensive counseling about anticipated maintenance PARPi benefit.
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Affiliation(s)
- Rubina Ratnaparkhi
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, University of Kansas Medical Center, Kansas City, KS, USA.
| | - Melissa Javellana
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, University of Kansas Medical Center, Kansas City, KS, USA
| | - Andrea Jewell
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, University of Kansas Medical Center, Kansas City, KS, USA
| | - Lori Spoozak
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, University of Kansas Medical Center, Kansas City, KS, USA
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20
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Hodan R, Kingham K, Kurian AW. Recurrent BRCA2 exon 3 deletion in Assyrian families. J Med Genet 2024; 61:155-157. [PMID: 37657917 DOI: 10.1136/jmg-2023-109430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 08/21/2023] [Indexed: 09/03/2023]
Abstract
We identified six patients from five families with a recurrent mutation: NM_000059.3 (BRCA2) exon 3 deletion. All families self-identified as Assyrian. Assyrians are an ethnoreligious population of ancient Mesopotamia, now mostly living in modern day Iraq, Syria, Turkey and Iran. They are historically a socially isolated population with intermarriage within their community, living as a religious and language minority in mostly Muslim countries. The probands of each family presented with a classic BRCA2-associated cancer including early-onset breast cancer, epithelial serous ovarian cancer, male breast cancer and/or high-grade prostate cancer, and family history that was also significant for BRCA2-associated cancer. BRCA2 exon 3 deletion is classified as pathogenic and has been previously described in the literature, but it has not been described as a founder mutation in a particular population. We characterise this recurrent BRCA2 pathogenic variant in five Assyrian families in a single centre cohort.
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Affiliation(s)
- Rachel Hodan
- Cancer Genetics, Stanford Health Care, Stanford, California, USA
- Department of Pediatrics (Genetics), Stanford University School of Medicine, Stanford, California, USA
| | - Kerry Kingham
- Cancer Genetics, Stanford Health Care, Stanford, California, USA
- Department of Pediatrics (Genetics), Stanford University School of Medicine, Stanford, California, USA
| | - Allison W Kurian
- Department of Medicine, Stanford University School of Medicine, Stanford, California, USA
- Department of Epidemiology and Population Health, Stanford University School of Medicine, Stanford, California, USA
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21
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Oosthuizen J, Van der Merwe NC, Kotze MJ. Navigating the genetic landscape of breast cancer in South Africa amidst a developing healthcare system. Front Genet 2024; 14:1330946. [PMID: 38259622 PMCID: PMC10800608 DOI: 10.3389/fgene.2023.1330946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 12/19/2023] [Indexed: 01/24/2024] Open
Abstract
Breast cancer is a significant global health issue as it represents the leading cause of death in women worldwide. In 2021, the World Health Organization established the Global Breast Cancer Initiative framework with the aim to reduce the breast cancer mortality rate by the year 2040. In countries with developing healthcare systems, such as South Africa, the implementation of first-world technologies has been slow. We provide an overview of the strides taken to improve the cost-effectiveness of genetic service delivery for breast cancer patients in South Africa - from advances in the technology utilized for BRCA founder genotyping to variant screening in moderate-to high-penetrance genes. We furthermore reflect on research undertaken to improve accessibility by means of population-directed point-of-care genetic testing that is ideal for use in a primary healthcare setting. We also report on a pilot study utilizing exome sequencing at the intersection between research and service delivery. Finally, we discuss and conclude on the controversies, research gaps, and future prospects based on the most recent developments in first-world countries that are implementable in developing countries to improve early detection of breast cancer and overall disease management.
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Affiliation(s)
- Jaco Oosthuizen
- Division of Human Genetics, National Health Laboratory Service, Bloemfontein, South Africa
- Division of Human Genetics, Faculty of Health Sciences, University of the Free State, Bloemfontein, South Africa
| | - Nerina C. Van der Merwe
- Division of Human Genetics, National Health Laboratory Service, Bloemfontein, South Africa
- Division of Human Genetics, Faculty of Health Sciences, University of the Free State, Bloemfontein, South Africa
| | - Maritha J. Kotze
- Division of Chemical Pathology, Department of Pathology, National Health Laboratory Service, Tygerberg Hospital, Cape Town, South Africa
- Division of Chemical Pathology, Department of Pathology, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
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22
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Zhang Y, Wu H, Gan C, Rao H, Wang Q, Guo X. BRCA1 and BRCA2 germline mutations in Chinese Hakka breast cancer patients. BMC Med Genomics 2024; 17:3. [PMID: 38167124 PMCID: PMC10763220 DOI: 10.1186/s12920-023-01772-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 12/12/2023] [Indexed: 01/05/2024] Open
Abstract
OBJECTIVE To investigate the prevalence of BRCA1/2 gene variants and evaluate the clinical and pathological characteristics associated with these variants in Chinese Hakka breast cancer patients. METHODS A total of 409 breast cancer patients were analyzed based on next-generation sequencing results, with 337 categorized as non-carriers and 72 as carriers of BRCA1/2 variants. Data on the patients' BRCA1/2 gene mutation status, clinical and pathological characteristics, as well as menstrual and reproductive information, were collected, analyzed, compared, and tabulated. Logistic regression analysis was performed to explore the relationship between clinical characteristics and pathogenic variants. RESULTS Among the patients, 72 were identified as carriers of pathogenic or likely pathogenic variants in BRCA1/2, while 337 had likely benign or benign mutations. The BRCA1 c.2635G > T (p. Glu879*) variant was detected at a high frequency, accounting for 12.5% (4/32) of the BRCA1 mutations, while the c.5164_5165del (p.Ser1722Tyrfs*4) variant was common among the BRCA2 mutations, accounting for 17.5% (7/40). It was observed that a higher proportion of BRCA1 carriers had the triple-negative breast cancer subtype, whereas more BRCA2 carriers exhibited estrogen receptor (ER) + and progesterone receptor (PR) + subtypes. Multivariate logistic regression analysis revealed that a family history of cancer (OR = 2.36, 95% CI = 1.00-5.54), bilateral cancer (OR = 4.78, 95% CI 1.61-14.20), human epidermal growth factor receptor 2 (HER2)- (OR = 8.23, 95% CI 3.25-20.84), and Ki67 ≥ 15% (OR = 3.88, 95% CI 1.41-10.65) were associated with BRCA1/2 mutations, with the age at diagnosis, age at menarche, and premenopausal status serving as covariates. CONCLUSIONS The most common pathogenic variant of the BRCA1 and BRCA2 in breast cancer patients was c.2635G > T and c.5164_5165del, respectively. Additionally, a family history of cancer, bilateral cancer, HER2-, and Ki67 ≥ 15% were identified as independent predictors of BRCA1/2 pathogenic variants.
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Affiliation(s)
- Yinmei Zhang
- Center for Precision Medicine, Meizhou People's Hospital (Huangtang Hospital), Meizhou Academy of Medical Sciences, No 63 Huangtang Road, Meijiang District, Meizhou, 514031, P. R. China
- Guangdong Engineering Technological Research Center of Clinical Molecular Diagnosis and Antibody Drugs, Meizhou, China
| | - Heming Wu
- Center for Precision Medicine, Meizhou People's Hospital (Huangtang Hospital), Meizhou Academy of Medical Sciences, No 63 Huangtang Road, Meijiang District, Meizhou, 514031, P. R. China
| | - Caiyan Gan
- Center for Precision Medicine, Meizhou People's Hospital (Huangtang Hospital), Meizhou Academy of Medical Sciences, No 63 Huangtang Road, Meijiang District, Meizhou, 514031, P. R. China
- Guangdong Engineering Technological Research Center of Clinical Molecular Diagnosis and Antibody Drugs, Meizhou, China
| | - Hui Rao
- Center for Precision Medicine, Meizhou People's Hospital (Huangtang Hospital), Meizhou Academy of Medical Sciences, No 63 Huangtang Road, Meijiang District, Meizhou, 514031, P. R. China
| | - Qiuming Wang
- Department of Medical Oncology, Meizhou People's Hospital (Huangtang Hospital), Meizhou Academy of Medical Sciences, Meizhou, People's Republic of China
| | - Xueming Guo
- Center for Precision Medicine, Meizhou People's Hospital (Huangtang Hospital), Meizhou Academy of Medical Sciences, No 63 Huangtang Road, Meijiang District, Meizhou, 514031, P. R. China.
- Guangdong Engineering Technological Research Center of Clinical Molecular Diagnosis and Antibody Drugs, Meizhou, China.
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23
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Sokolenko AP, Bakaeva EK, Venina AR, Kuligina ES, Romanko AA, Aleksakhina SN, Belysheva YV, Belogubova EV, Stepanov IA, Zaitseva OA, Yatsuk OS, Togo AV, Khamgokov ZM, Kadyrova AO, Pirmagomedov AS, Bolieva MB, Epkhiev AA, Tsutsaev AK, Chakhieva MD, Khabrieva KM, Khabriev IM, Murachuev MA, Buttaeva BN, Baboshkina LS, Bayramkulova FI, Katchiev IR, Alieva LK, Raskin GA, Orlov SV, Khachmamuk ZK, Levonyan KR, Gichko DM, Kirtbaya DV, Degtyariov AM, Sultanova LV, Musayeva HS, Belyaev AM, Imyanitov EN. Ethnicity-specific BRCA1, BRCA2, PALB2, and ATM pathogenic alleles in breast and ovarian cancer patients from the North Caucasus. Breast Cancer Res Treat 2024; 203:307-315. [PMID: 37851290 DOI: 10.1007/s10549-023-07135-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 09/21/2023] [Indexed: 10/19/2023]
Abstract
BACKGROUND Mountain areas of the North Caucasus host several large ethnic communities that have preserved their national identity over the centuries. METHODS This study involved high-grade serous ovarian cancer (HGSOC) and breast cancer (BC) patients from Dagestan (HGSOC: 37; BC: 198), Kabardino-Balkaria (HGSOC: 68; BC: 155), North Ossetia (HGSOC: 51; BC: 104), Chechnya (HGSOC: 68; BC: 79), Ingushetia (HGSOC: 19; BC: 103), Karachay-Cherkessia (HGSOC: 13; BC: 47), and several Armenian settlements (HGSOC: 16; BC: 101). The group of BC patients was enriched by young-onset and/or family history-positive and/or bilateral and/or receptor triple-negative cases. The entire coding region of BRCA1, BRCA2, PALB2, and ATM genes was analyzed by next-generation sequencing. RESULTS A significant contribution of BRCA1/2 pathogenic variants (PVs) to HGSOC and BC development was observed across all North Caucasus regions (HGSOC: 19-39%; BC: 6-13%). Founder alleles were identified in all ethnic groups studied, e.g., BRCA1 c.3629_3630delAG in Chechens, BRCA2 c.6341delC in North Ossetians, BRCA2 c.5351dupA in Ingush, and BRCA1 c.2907_2910delTAAA in Karachays. Some BRCA1/2 alleles, particularly BRCA2 c.9895C > T, were shared by several nationalities. ATM PVs were detected in 14 patients, with c.1673delG and c.8876_8879delACTG alleles occurring twice each. PALB2 heterozygosity was observed in 5 subjects, with one variant seen in 2 unrelated women. CONCLUSION This study adds to the evidence for the global-wide contribution of BRCA1/2 genes to HGSOC and BC morbidity, although the spectrum of their PVs is a subject of ethnicity-specific variations. The data on founder BRCA1/2 alleles may be considered when adjusting the BRCA1/2 testing procedure to the ethnic origin of patients.
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Affiliation(s)
- Anna P Sokolenko
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, Leningradskaya, 68, Pesochny-2, St. Petersburg, Russia, 197758.
- St. Petersburg Pediatric Medical University, St. Petersburg, Russia.
| | - Elvina Kh Bakaeva
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, Leningradskaya, 68, Pesochny-2, St. Petersburg, Russia, 197758
| | - Aigul R Venina
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, Leningradskaya, 68, Pesochny-2, St. Petersburg, Russia, 197758
| | - Ekaterina Sh Kuligina
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, Leningradskaya, 68, Pesochny-2, St. Petersburg, Russia, 197758
| | - Alexandr A Romanko
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, Leningradskaya, 68, Pesochny-2, St. Petersburg, Russia, 197758
| | - Svetlana N Aleksakhina
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, Leningradskaya, 68, Pesochny-2, St. Petersburg, Russia, 197758
| | - Yana V Belysheva
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, Leningradskaya, 68, Pesochny-2, St. Petersburg, Russia, 197758
| | - Evgeniya V Belogubova
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, Leningradskaya, 68, Pesochny-2, St. Petersburg, Russia, 197758
| | - Ilya A Stepanov
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, Leningradskaya, 68, Pesochny-2, St. Petersburg, Russia, 197758
| | - Olga A Zaitseva
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, Leningradskaya, 68, Pesochny-2, St. Petersburg, Russia, 197758
| | - Olga S Yatsuk
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, Leningradskaya, 68, Pesochny-2, St. Petersburg, Russia, 197758
| | - Alexandr V Togo
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, Leningradskaya, 68, Pesochny-2, St. Petersburg, Russia, 197758
| | - Zaur M Khamgokov
- Republican Cancer Center, The Kabardino-Balkarian Republic, Nalchik, Russia
| | - Azinat O Kadyrova
- Republican Cancer Center, The Kabardino-Balkarian Republic, Nalchik, Russia
| | | | - Marina B Bolieva
- Republican Cancer Center, The Republic of North Ossetia-Alania, Vladikavkaz, Russia
| | - Alexandr A Epkhiev
- Republican Cancer Center, The Republic of North Ossetia-Alania, Vladikavkaz, Russia
| | - Aslan K Tsutsaev
- Republican Cancer Center, The Republic of North Ossetia-Alania, Vladikavkaz, Russia
| | | | | | - Idris M Khabriev
- Republican Cancer Center, The Republic of Ingushetia, Pliyevo, Russia
| | - Mirza A Murachuev
- Republican Cancer Center, The Republic of Dagestan, Makhachkala, Russia
| | - Bella N Buttaeva
- Republican Bureau of Pathology, The Republic of Dagestan, Makhachkala, Russia
| | - Liliya S Baboshkina
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, Leningradskaya, 68, Pesochny-2, St. Petersburg, Russia, 197758
| | | | - Islam R Katchiev
- Republican Cancer Center, The Karachay-Cherkess Republic, Cherkessk, Russia
| | - Lina Kh Alieva
- Republican Cancer Center, The Karachay-Cherkess Republic, Cherkessk, Russia
| | - Grigory A Raskin
- Dr. Sergey Berezin Medical Institute of Biological Systems, St. Petersburg, Russia
| | - Sergey V Orlov
- I.P. Pavlov St.-Petersburg State Medical University, St. Petersburg, Russia
| | | | | | | | | | | | | | - Hedi S Musayeva
- Republican Cancer Center, Grozny, The Chechen Republic, Russia
| | - Alexey M Belyaev
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, Leningradskaya, 68, Pesochny-2, St. Petersburg, Russia, 197758
| | - Evgeny N Imyanitov
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, Leningradskaya, 68, Pesochny-2, St. Petersburg, Russia, 197758
- St. Petersburg Pediatric Medical University, St. Petersburg, Russia
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24
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Hughes T, Rose AM. The emergence of Fanconi anaemia type S: a phenotypic spectrum of biallelic BRCA1 mutations. Front Oncol 2023; 13:1278004. [PMID: 38146508 PMCID: PMC10749362 DOI: 10.3389/fonc.2023.1278004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 10/23/2023] [Indexed: 12/27/2023] Open
Abstract
BRCA1 is involved in the Fanconi anaemia (FA) pathway, which coordinates repair of DNA interstrand cross-links. FA is a rare genetic disorder characterised by bone marrow failure, cancer predisposition and congenital abnormalities, caused by biallelic mutations affecting proteins in the FA pathway. Germline monoallelic pathogenic BRCA1 mutations are known to be associated with hereditary breast/ovarian cancer, however biallelic mutations of BRCA1 were long predicted to be incompatible with embryonic viability, hence BRCA1 was not considered to be a canonical FA gene. Despite this, several patients with biallelic pathogenic BRCA1 mutations and FA-like phenotypes have been identified - defining a new FA type (FA-S) and designating BRCA1 as an FA gene. This report presents a scoping review of the cases of biallelic BRCA1 mutations identified to date, discusses the functional effects of the mutations identified, and proposes a phenotypic spectrum of BRCA1 mutations based upon available clinical and genetic data. We report that this FA-S cohort phenotype includes short stature, microcephaly, facial dysmorphisms, hypo/hyperpigmented lesions, intellectual disability, chromosomal sensitivity to crosslinking agents and predisposition to breast/ovarian cancer and/or childhood cancers, with some patients exhibiting sensitivity to chemotherapy. Unlike most other types of FA, FA-S patients lack bone marrow failure.
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Affiliation(s)
- Tirion Hughes
- University of Oxford Medical School, Oxford, United Kingdom
| | - Anna M. Rose
- Department of Paediatrics, University of Oxford, Oxford, United Kingdom
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25
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Corso G, Marabelli M, Calvello M, Gandini S, Risti M, Feroce I, Mannucci S, Girardi A, De Scalzi AM, Magnoni F, Marino E, Bernard L, Veronesi P, Guerini-Rocco E, Barberis M, Guerrieri-Gonzaga A, Bonanni B. Germline pathogenic variants in metaplastic breast cancer patients and the emerging role of the BRCA1 gene. Eur J Hum Genet 2023; 31:1275-1282. [PMID: 37460658 PMCID: PMC10620155 DOI: 10.1038/s41431-023-01429-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 06/29/2023] [Accepted: 07/04/2023] [Indexed: 08/19/2023] Open
Abstract
Metaplastic breast cancer (MpBC) is a rare, aggressive breast cancer (BC) histotype. Scarce information is available about MpBC genetic predisposition. Previous studies, mainly consisting of case reports, retrospective reviews and others on target therapies, pointed to a possible involvement of the BRCA1 gene in increasing MpBC risk, without ever confirming it. In this study, we retrospectively reviewed all BC patients counseled at our Institute for genetic testing of at least BRCA1 or BRCA2 (BRCA) genes and we found that 23 (23/5226 = 0.4%) were affected by MpBC. About 65% (15/23) of MpBC patients harbored a germline pathogenic variant (PV): 13 in BRCA1 (86.7%), including two patients who received genetic testing for known familial PV, one in TP53 (6.7%), and one in MLH1 (6.7%). We observed a statistically different frequency of MpBC in patients who carried a PV in the BRCA genes (13/1114 = 1.2%) vs. all other BC patients (10/4112 = 0.2%) (p = 0.0002). BRCA carriers proved to have an increased risk of developing MpBC compared to all other BC patients who were tested for BRCA genes (OR = 4.47; 95% CI: 1.95-10.23). Notably, MpBCs were diagnosed in 2.1% (13/610) of BRCA1 carriers. No MpBCs were observed in BRCA2 carriers (0/498 = 0%), revealing a statistically significant difference between the prevalence of MpBCs in BRCA1 and BRCA2 carriers (p = 0.0015). Our results confirmed that BRCA1 is involved in MpBC predisposition. Further studies on unselected patients are needed to elucidate the authentic role of BRCA1 and to explore the possible implication of other genes in MpBC predisposition.
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Affiliation(s)
- Giovanni Corso
- Division of Breast Surgery, IEO, European Institute of Oncology IRCCS, Milan, Italy
- Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy
- European Cancer Prevention Organization (ECP), Milan, Italy
| | - Monica Marabelli
- Division of Cancer Prevention and Genetics, IEO, European Institute of Oncology IRCCS, Milan, Italy.
| | - Mariarosaria Calvello
- Division of Cancer Prevention and Genetics, IEO, European Institute of Oncology IRCCS, Milan, Italy
| | - Sara Gandini
- Department of Experimental Oncology, IEO, European Institute of Oncology IRCCS, Milan, Italy
| | - Matilde Risti
- Division of Cancer Prevention and Genetics, IEO, European Institute of Oncology IRCCS, Milan, Italy
| | - Irene Feroce
- Division of Cancer Prevention and Genetics, IEO, European Institute of Oncology IRCCS, Milan, Italy
| | - Sara Mannucci
- Division of Cancer Prevention and Genetics, IEO, European Institute of Oncology IRCCS, Milan, Italy
| | - Antonia Girardi
- Division of Breast Surgery, IEO, European Institute of Oncology IRCCS, Milan, Italy
| | | | - Francesca Magnoni
- Division of Breast Surgery, IEO, European Institute of Oncology IRCCS, Milan, Italy
| | - Elena Marino
- Clinic Unit of Oncogenomics, IEO, European Institute of Oncology IRCCS, Milan, Italy
| | - Loris Bernard
- Clinic Unit of Oncogenomics, IEO, European Institute of Oncology IRCCS, Milan, Italy
| | - Paolo Veronesi
- Division of Breast Surgery, IEO, European Institute of Oncology IRCCS, Milan, Italy
- Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy
| | - Elena Guerini-Rocco
- Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy
- Division of Pathology, IEO, European Institute of Oncology IRCCS, Milan, Italy
| | - Massimo Barberis
- Clinic Unit of Oncogenomics, IEO, European Institute of Oncology IRCCS, Milan, Italy
| | - Aliana Guerrieri-Gonzaga
- Division of Cancer Prevention and Genetics, IEO, European Institute of Oncology IRCCS, Milan, Italy
| | - Bernardo Bonanni
- Division of Cancer Prevention and Genetics, IEO, European Institute of Oncology IRCCS, Milan, Italy
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26
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Aretini P, Presciuttini S, Pastore A, Galli A, Panepinto S, Tancredi M, Ghilli M, Guglielmi C, Sidoti D, Congregati C, Caligo MA. The BRCA1 c.4096+1G>A Is a Founder Variant Which Originated in Ancient Times. Int J Mol Sci 2023; 24:15507. [PMID: 37958491 PMCID: PMC10648645 DOI: 10.3390/ijms242115507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 10/17/2023] [Accepted: 10/21/2023] [Indexed: 11/15/2023] Open
Abstract
Approximately 30-50% of hereditary breast and ovarian cancer (HBOC) is due to the presence of germline pathogenic variants in the BRCA1 (OMIM 113705) and BRCA2 (OMIM 600185) onco-suppressor genes, which are involved in DNA damage response. Women who carry pathogenic BRCA1 variants are particularly likely to develop breast cancer (BC) and ovarian cancer (OC), with a 45-79 percent and 39-48 percent chance, respectively. The BRCA1 c.4096+1G>A variant has been frequently ascertained in Tuscany, Italy, and it has also been detected in other Italian regions and other countries. Its pathogenetic status has been repeatedly changed from a variant of uncertain significance, to pathogenic, to likely pathogenic. In our study, 48 subjects (38 of whom are carriers) from 27 families were genotyped with the Illumina OncoArray Infinium platform (533,531 SNPs); a 20 Mb region (24.6 cM) around BRCA1, including 4130 SNPs (21 inside BRCA1) was selected for haplotype analysis. We used a phylogenetic method to estimate the time to the most recent common ancestor (MRCA) of BRCA1 c.4096+1G>A founder pathogenic variant. This analysis suggests that the MRCA lived about 155 generations ago-around 3000 years ago.
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Affiliation(s)
- Paolo Aretini
- Fondazione Pisana per la Scienza, San Giuliano Terme, 56017 Pisa, Italy;
| | - Silvano Presciuttini
- Dipartimento di Ricerca Traslazionale e Nuove Tecnologie in Medicina e Chirurgia, Università di Pisa, 56126 Pisa, Italy;
| | - Aldo Pastore
- Fondazione Pisana per la Scienza, San Giuliano Terme, 56017 Pisa, Italy;
- Laboratorio NEST, Scuola Normale Superiore, 56126 Pisa, Italy
| | - Alvaro Galli
- Istituto di Fisiologia Clinica, Consiglio Nazionale delle Ricerche (CNR), 56124 Pisa, Italy;
| | - Sara Panepinto
- Laboratorio di Genetica Molecolare, Azienda Ospedaliera Universitaria Pisana, 56126 Pisa, Italy; (S.P.); (M.T.); (C.G.); (D.S.)
| | - Mariella Tancredi
- Laboratorio di Genetica Molecolare, Azienda Ospedaliera Universitaria Pisana, 56126 Pisa, Italy; (S.P.); (M.T.); (C.G.); (D.S.)
| | - Matteo Ghilli
- Breast Unit, Azienda Ospedaliera Universitaria Pisana, 56126 Pisa, Italy;
| | - Chiara Guglielmi
- Laboratorio di Genetica Molecolare, Azienda Ospedaliera Universitaria Pisana, 56126 Pisa, Italy; (S.P.); (M.T.); (C.G.); (D.S.)
| | - Diletta Sidoti
- Laboratorio di Genetica Molecolare, Azienda Ospedaliera Universitaria Pisana, 56126 Pisa, Italy; (S.P.); (M.T.); (C.G.); (D.S.)
| | - Caterina Congregati
- Genetica Medica, Azienda Ospedaliera Universitaria Pisana, 56126 Pisa, Italy;
| | - Maria Adelaide Caligo
- Laboratorio di Genetica Molecolare, Azienda Ospedaliera Universitaria Pisana, 56126 Pisa, Italy; (S.P.); (M.T.); (C.G.); (D.S.)
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27
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Rebbeck T, Janivara R, Chen W, Hazra U, Baichoo S, Agalliu I, Kachambwa P, Simonti C, Brown L, Tambe S, Kim M, Harlemon M, Jalloh M, Muzondiwa D, Naidoo D, Ajayi O, Snyper N, Niang L, Diop H, Ndoye M, Mensah J, Darkwa-Abrahams A, Biritwum R, Adjei A, Adebiyi A, Shittu O, Ogunbiyi O, Adebayo S, Nwegbu M, Ajibola H, Oluwole O, Jamda M, Pentz A, Haiman C, Spies P, Van der Merwe A, Cook M, Chanock SJ, Berndt SI, Watya S, Lubwama A, Muchengeti M, Doherty S, Smyth N, Lounsbury D, Fortier B, Rohan T, Jacobson J, Neugut A, Hsing A, Gusev A, Aisuodionoe-Shadrach O, Joffe M, Adusei B, Gueye S, Fernandez P, McBride J, Andrews C, Petersen L, Lachance J. Heterogeneous genetic architectures and evolutionary genomics of prostate cancer in Sub-Saharan Africa. RESEARCH SQUARE 2023:rs.3.rs-3378303. [PMID: 37886553 PMCID: PMC10602179 DOI: 10.21203/rs.3.rs-3378303/v1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2023]
Abstract
Men of African descent have the highest prostate cancer (CaP) incidence and mortality rates, yet the genetic basis of CaP in African men has been understudied. We used genomic data from 3,963 CaP cases and 3,509 controls recruited in Ghana, Nigeria, Senegal, South Africa, and Uganda, to infer ancestry-specific genetic architectures and fine-mapped disease associations. Fifteen independent associations at 8q24.21, 6q22.1, and 11q13.3 reached genome-wide significance, including four novel associations. Intriguingly, multiple lead SNPs are private alleles, a pattern arising from recent mutations and the out-of-Africa bottleneck. These African-specific alleles contribute to haplotypes with odds ratios above 2.4. We found that the genetic architecture of CaP differs across Africa, with effect size differences contributing more to this heterogeneity than allele frequency differences. Population genetic analyses reveal that African CaP associations are largely governed by neutral evolution. Collectively, our findings emphasize the utility of conducting genetic studies that use diverse populations.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Maxwell Nwegbu
- University of Abuja Teaching Hospital and Cancer Science Center
| | - Hafees Ajibola
- University of Abuja Teaching Hospital and Cancer Science Center
| | - Olabode Oluwole
- University of Abuja and University of Abuja Teaching Hospital
| | - Mustapha Jamda
- University of Abuja Teaching Hospital and Cancer Science Center
| | | | | | | | | | | | | | - Sonja I Berndt
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Bethesda
| | | | | | - Mazvita Muchengeti
- National Institute for Communicable Diseases a Division of the National Health Laboratory Service
| | | | | | | | | | | | | | | | - Ann Hsing
- Stanford University School of Medicine
| | | | | | | | | | | | | | - Jo McBride
- Centre for Proteomic and Genomic Research
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28
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Zhunussova G, Omarbayeva N, Kaidarova D, Abdikerim S, Mit N, Kisselev I, Yergali K, Zhunussova A, Goncharova T, Abdrakhmanova A, Djansugurova L. Determination of genetic predisposition to early breast cancer in women of Kazakh ethnicity. Oncotarget 2023; 14:860-877. [PMID: 37791908 PMCID: PMC10549772 DOI: 10.18632/oncotarget.28518] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Accepted: 09/21/2023] [Indexed: 10/05/2023] Open
Abstract
Breast cancer (BC) is the most common type of cancer among women in Kazakhstan. To date, little data are available on the spectrum of genetic variation in Kazakh women with BC. We aimed to identify population-specific genetic markers associated with the risk of developing early-onset BC and test their association with clinical and prognostic factors. The study included 224 Kazakh women diagnosed with BC (≤40 age). Entire coding regions (>1700 exons) and the flanking noncoding regions of 94 cancer-associated genes were sequenced from blood DNA using MiSeq platform. We identified 38 unique pathogenic variants (PVs) in 13 different cancer-predisposing genes among 57 patients (25.4%), of which 6 variants were novel. In total, 12 of the 38 distinct PVs were detected recurrently, including BRCA1 c.5266dup, c.5278-2del, and c.2T>C, and BRCA2 c.9409dup and c.9253del that may be founder in this population. BRCA1 carriers were significantly more likely to develop triple-negative BC (OR = 6.61, 95% CI 2.44-17.91, p = 0.0002) and have family history of BC (OR = 3.17, 95% CI 1.14-8.76, p = 0.03) compared to non-carriers. This study allowed the identification of PVs specific to early-onset BC, which may be used as a foundation to develop regional expertise and diagnostic tools for early detection of BC in young Kazakh women.
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Affiliation(s)
- Gulnur Zhunussova
- Laboratory of Molecular Genetics, Institute of Genetics and Physiology, Almaty 050060, Kazakhstan
- Al-Farabi Kazakh National University, Almaty 050060, Kazakhstan
| | - Nazgul Omarbayeva
- Kazakh Institute of Oncology and Radiology, Almaty 050060, Kazakhstan
- Asfendiyarov Kazakh National Medical University, Almaty 050060, Kazakhstan
| | - Dilyara Kaidarova
- Kazakh Institute of Oncology and Radiology, Almaty 050060, Kazakhstan
- Asfendiyarov Kazakh National Medical University, Almaty 050060, Kazakhstan
| | - Saltanat Abdikerim
- Laboratory of Molecular Genetics, Institute of Genetics and Physiology, Almaty 050060, Kazakhstan
- Al-Farabi Kazakh National University, Almaty 050060, Kazakhstan
| | - Natalya Mit
- Laboratory of Molecular Genetics, Institute of Genetics and Physiology, Almaty 050060, Kazakhstan
| | - Ilya Kisselev
- Laboratory of Molecular Genetics, Institute of Genetics and Physiology, Almaty 050060, Kazakhstan
| | - Kanagat Yergali
- Laboratory of Molecular Genetics, Institute of Genetics and Physiology, Almaty 050060, Kazakhstan
| | - Aigul Zhunussova
- Laboratory of Molecular Genetics, Institute of Genetics and Physiology, Almaty 050060, Kazakhstan
| | | | - Aliya Abdrakhmanova
- Kazakh Institute of Oncology and Radiology, Almaty 050060, Kazakhstan
- Asfendiyarov Kazakh National Medical University, Almaty 050060, Kazakhstan
| | - Leyla Djansugurova
- Laboratory of Molecular Genetics, Institute of Genetics and Physiology, Almaty 050060, Kazakhstan
- Al-Farabi Kazakh National University, Almaty 050060, Kazakhstan
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29
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Al-Kafaji G, Jassim G, AlHajeri A, Alawadhi AMT, Fida M, Sahin I, Alali F, Fadel E. Investigation of germline variants in Bahraini women with breast cancer using next-generation sequencing based-multigene panel. PLoS One 2023; 18:e0291015. [PMID: 37656691 PMCID: PMC10473515 DOI: 10.1371/journal.pone.0291015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 08/20/2023] [Indexed: 09/03/2023] Open
Abstract
Germline variants in BRCA1 and BRCA2 (BRCA1/2) genes are the most common cause of hereditary breast cancer. However, a significant number of cases are not linked to these two genes and additional high-, moderate- and low-penetrance genes have been identified in breast cancer. The advent of next-generation sequencing (NGS) allowed simultaneous sequencing of multiple cancer-susceptibility genes and prompted research in this field. So far, cancer-predisposition genes other than BRCA1/2 have not been studied in the population of Bahrain. We performed a targeted NGS using a multi-panel covering 180 genes associated with cancer predisposition to investigate the spectrum and frequency of germline variants in 54 women with a positive personal and/or family history of breast cancer. Sequencing analysis revealed germline variants in 29 (53.7%) patients. Five pathogenic/likely pathogenic variants in four DNA repair pathway-related genes were identified in five unrelated patients (9.3%). Two BRCA1 variants, namely the missense variant c.287A>G (p.Asp96Gly) and the truncating variant c.1066C>T (p.Gln356Ter), were detected in two patients (3.7%). Three variants in non-BRCA1/2 genes were detected in three patients (1.85% each) with a strong family history of breast cancer. These included a monoallelic missense variant c.1187G>A (p.Gly396Asp) in MUTYH gene, and two truncating variants namely c.3343C>T (p.Arg1115Ter) in MLH3 gene and c.1826G>A (p.Trp609Ter) in PMS1 gene. Other variants of uncertain significance (VUS) were also detected, and some of them were found together with the deleterious variants. In this first application of NGS-based multigene testing in Bahraini women with breast cancer, we show that multigene testing can yield additional genomic information on low-penetrance genes, although the clinical significance of these genes has not been fully appreciated yet. Our findings also provide valuable epidemiological information for future studies and highlight the importance of genetic testing, and an NGS-based multigene analysis may be applied supplementary to traditional genetic counseling.
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Affiliation(s)
- Ghada Al-Kafaji
- Department of Molecular Medicine and Al-Jawhara Centre for Molecular Medicine, Genetics, and Inherited Disorders, College of Medicine and Medical Sciences, Arabian Gulf University, Manama, Kingdom of Bahrain
| | - Ghufran Jassim
- Department of Family Medicine, Royal College of Surgeons in Ireland-Bahrain, Manama, Kingdom of Bahrain
| | - Amani AlHajeri
- Department of Genetics, Salmaniya Medical Complex, Manama, Kingdom of Bahrain
| | | | - Mariam Fida
- Bahrain Oncology Center, King Hamad University Hospital, Manama, Kingdom of Bahrain
| | - Ibrahim Sahin
- Department of Molecular Medicine and Al-Jawhara Centre for Molecular Medicine, Genetics, and Inherited Disorders, College of Medicine and Medical Sciences, Arabian Gulf University, Manama, Kingdom of Bahrain
| | - Faisal Alali
- North western Hospital, Chicago Medical School, North Chicago, Illinois, United States of America
| | - Elias Fadel
- Bahrain Oncology Center, King Hamad University Hospital, Manama, Kingdom of Bahrain
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30
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Ferreyra Y, Rosas G, Cock-Rada AM, Araujo J, Bravo L, Doimi F, Casas J, Clavo MDLÁ, Pinto JA, Belmar-López C. Landscape of germline BRCA1/BRCA2 variants in breast and ovarian cancer in Peru. Front Oncol 2023; 13:1227864. [PMID: 37664050 PMCID: PMC10470619 DOI: 10.3389/fonc.2023.1227864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 07/27/2023] [Indexed: 09/05/2023] Open
Abstract
Background There is an increasing amount of data from Latin America on the characterization of BRCA variants; however, there is limited information from Peru. We conducted a retrospective study to describe germline pathogenic/likely pathogenic(P/LP) variants and variants of uncertain/unknown significance (VUS) in the BRCA1 and BRCA2 genes in Peru, in patients with breast and ovarian cancer, candidates for treatment with poly (adenosine diphosphate-ribose) polymerase (PARP) inhibitors. Methods The patients were evaluated during the period 2019-2021. Genomic DNA was isolated from peripheral blood samples and targeted sequencing was performed using the Ampliseq BRCA panel. Genetic variant interpretation was carried out in accordance with the recommendations of the American College of Medical Genetics and ClinVar. During this period, 525 patients (143 with breast cancer and 382 with ovarian cancer) were studied. Results We found that 14.7% (21/143) of breast cancer patients and 20.7% (79/382) of ovarian cancer patients were carriers of P/LP variants in BRCA1/2. The most frequent pathogenic variants detected in BRCA1 were c.2105dupT (BIC: 2224insT, n=12, 18.75%), c.68_69delAG (BIC: 185delAG, n=6, 9.38%), c.140G>T and c.815_824dupAGCCATGTGG (n=5, 7.81%), while in BRCA2 were c.8023A>G (n=6, 16.67%), c.6024dupG (BIC: 6252insG, n=4, 11.11%), and c.9235delG (BIC: 9463delG, n=3, 8.33%). Regarding VUS, we found that 6.99% (10/143) of breast cancer patients and 7.33% (28/382) of ovarian cancer patients were carriers of a VUS in BRCA1/2. For BRCA1, the most frequent VUS was c.93C>G (n=2), and for BRCA2, c.5465A>T (n=4), c.3101T>C (n=3), c.205C>A and c.437T>C (n=2). Conclusion We found a frequency of 14.7% germline mutations in breast cancer patients and 20.7% in ovarian cancer patients. The most recurrent mutations were BRCA1 c.2105dupT and BRCA2 c.8023A>G. We found that BRCA2 c.8023A>G, c.6024dupG, and c.9235delG were not previously reported in Peruvian patients. BRCA1 c.2344dupA is a novel mutation that has not been previously reported in any database. The frequency of VUS in our cohort was 7.2%.
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Affiliation(s)
- Yomali Ferreyra
- Departamento de Bioingeniería, Universidad de Ingenieria y Tecnología, Lima, Peru
| | - Gina Rosas
- Departamento de Patología, Insituto Nacional de Enfermedades Neoplásicas, Lima, Peru
| | - Alicia M. Cock-Rada
- Departmento de Oncología Médica, Instituto de Cancerología Las Américas - Auna, Medellín, Colombia
| | - Jhajaira Araujo
- Centro de Investigación Básicas y traslacional, Auna Ideas, Lima, Peru
| | - Leny Bravo
- Escuela Profesional de Medicina Humana-Filial Ica, Universidad Privada San Juan Bautista, Ica, Peru
| | | | | | | | - Joseph A. Pinto
- Centro de Investigación Básicas y traslacional, Auna Ideas, Lima, Peru
| | - Carolina Belmar-López
- Escuela Profesional de Medicina Humana-Filial Ica, Universidad Privada San Juan Bautista, Ica, Peru
- Oncogenomics, Auna, Lima, Peru
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31
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Desai NV, Barrows ED, Nielsen SM, Hatchell KE, Anderson MJ, Haverfield EV, Herrera B, Esplin ED, Lucassen A, Tung NM, Isaacs C. Retrospective Cohort Study on the Limitations of Direct-to-Consumer Genetic Screening in Hereditary Breast and Ovarian Cancer. JCO Precis Oncol 2023; 7:e2200695. [PMID: 37535880 PMCID: PMC10581610 DOI: 10.1200/po.22.00695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 05/08/2023] [Accepted: 06/29/2023] [Indexed: 08/05/2023] Open
Abstract
PURPOSE Among cancer predisposition genes, most direct-to-consumer (DTC) genetic tests evaluate three Ashkenazi Jewish (AJ) founder mutations in BRCA1/2, which represent a small proportion of pathogenic or likely pathogenic variants (PLPV) in cancer predisposing genes. In this study, we investigate PLPV in BRCA1/2 and other cancer predisposition genes that are missed by testing only AJ founder BRCA1/2 mutations. METHODS Individuals were referred to genetic testing for personal diagnoses of breast and/or ovarian cancer (clinical cohort) or were self-referred (nonindication-based cohort). There were 348,692 participants in the clinical cohort and 7,636 participants in the nonindication-based cohort. Both cohorts were analyzed for BRCA1/2 AJ founder mutations. Full sequence analysis was done for PLPV in BRCA1/2, CDH1, PALB2, PTEN, STK11, TP53, ATM, BARD1, BRIP1, CHEK2 (truncating variants), EPCAM, MLH1, MSH2/6, NF1, PMS2, RAD51C/D, and 22 other genes. RESULTS BRCA1/2 AJ founder mutations accounted for 10.8% and 29.7% of BRCA1/2 PLPV in the clinical and nonindication-based cohorts, respectively. AJ founder mutations accounted for 89.9% of BRCA1/2 PLPV in those of full AJ descent, but only 69.6% of those of partial AJ descent. In total, 0.5% of all individuals had a BRCA1/2 AJ founder variant, while 7.7% had PLPV in a high-risk breast/ovarian cancer gene. For non-AJ individuals, limiting evaluation to the AJ founder BRCA1/2 mutations missed >90% of mutations in actionable cancer risk genes. Secondary analysis revealed a false-positive rate of 69% for PLPV outside of non-AJ BRCA 1/2 founder mutations. CONCLUSION DTC genetic testing misses >90% of BRCA1/2 PLPV in individuals of non-AJ ancestry and about 10% of BRCA1/2 PLPV among AJ individuals. There is a high false-positivity rate for non-AJ BRCA 1/2 PLPV with DTC genetic testing.
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Affiliation(s)
| | - Elizabeth D. Barrows
- Division of Hematology-Oncology, MedStar Georgetown University Hospital, Washington, DC
- Georgetown University Medical Center, Lombardi Comprehensive Cancer Center, Washington, DC
| | | | | | | | | | | | | | - Anneke Lucassen
- Department of Clinical Ethics and Law at Southampton, University of Southampton, Southampton, United Kingdom
- Welcome Centre for Human Genetics, University of Oxford, Oxford, United Kingdom
| | - Nadine M. Tung
- Division of Hematology-Oncology, Department of Medicine, Beth Israel Deaconess Medical Center, Boston, MA
- Harvard Medical School, Boston, MA
| | - Claudine Isaacs
- Division of Hematology-Oncology, MedStar Georgetown University Hospital, Washington, DC
- Georgetown University Medical Center, Lombardi Comprehensive Cancer Center, Washington, DC
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32
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Figlioli G, Billaud A, Wang Q, Bolla MK, Dennis J, Lush M, Kvist A, Adank MA, Ahearn TU, Antonenkova NN, Auvinen P, Behrens S, Bermisheva M, Bogdanova NV, Bojesen SE, Bonanni B, Brüning T, Camp NJ, Campbell A, Castelao JE, Cessna MH, Czene K, Devilee P, Dörk T, Eriksson M, Fasching PA, Flyger H, Gabrielson M, Gago-Dominguez M, García-Closas M, Glendon G, Gómez Garcia EB, González-Neira A, Grassmann F, Guénel P, Hahnen E, Hamann U, Hillemanns P, Hooning MJ, Hoppe R, Howell A, Humphreys K, Jakubowska A, Khusnutdinova EK, Kristensen VN, Lindblom A, Loizidou MA, Lubiński J, Mannermaa A, Maurer T, Mavroudis D, Newman WG, Obi N, Panayiotidis MI, Radice P, Rashid MU, Rhenius V, Ruebner M, Saloustros E, Sawyer EJ, Schmidt MK, Schmutzler RK, Shah M, Southey MC, Tomlinson I, Truong T, van Veen EM, Wendt C, Yang XR, Michailidou K, Dunning AM, Pharoah PDP, Easton DF, Andrulis IL, Evans DG, Hollestelle A, Chang-Claude J, Milne RL, Peterlongo P. Spectrum and Frequency of Germline FANCM Protein-Truncating Variants in 44,803 European Female Breast Cancer Cases. Cancers (Basel) 2023; 15:3313. [PMID: 37444426 DOI: 10.3390/cancers15133313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 05/30/2023] [Accepted: 06/02/2023] [Indexed: 07/15/2023] Open
Abstract
FANCM germline protein truncating variants (PTVs) are moderate-risk factors for ER-negative breast cancer. We previously described the spectrum of FANCM PTVs in 114 European breast cancer cases. In the present, larger cohort, we report the spectrum and frequency of four common and 62 rare FANCM PTVs found in 274 carriers detected among 44,803 breast cancer cases. We confirmed that p.Gln1701* was the most common PTV in Northern Europe with lower frequencies in Southern Europe. In contrast, p.Gly1906Alafs*12 was the most common PTV in Southern Europe with decreasing frequencies in Central and Northern Europe. We verified that p.Arg658* was prevalent in Central Europe and had highest frequencies in Eastern Europe. We also confirmed that the fourth most common PTV, p.Gln498Thrfs*7, might be a founder variant from Lithuania. Based on the frequency distribution of the carriers of rare PTVs, we showed that the FANCM PTVs spectra in Southwestern and Central Europe were much more heterogeneous than those from Northeastern Europe. These findings will inform the development of more efficient FANCM genetic testing strategies for breast cancer cases from specific European populations.
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Affiliation(s)
- Gisella Figlioli
- Genome Diagnostics Program, IFOM ETS-The AIRC Institute of Molecular Oncology, 20139 Milan, Italy
| | - Amandine Billaud
- Genome Diagnostics Program, IFOM ETS-The AIRC Institute of Molecular Oncology, 20139 Milan, Italy
| | - Qin Wang
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, Cambridge CB1 8RN, UK
| | - Manjeet K Bolla
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, Cambridge CB1 8RN, UK
| | - Joe Dennis
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, Cambridge CB1 8RN, UK
| | - Michael Lush
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, Cambridge CB1 8RN, UK
| | - Anders Kvist
- Division of Oncology, Department of Clinical Sciences Lund, Lund University, 22185 Lund, Sweden
| | - Muriel A Adank
- The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Family Cancer Clinic, 1066 CX Amsterdam, The Netherlands
| | - Thomas U Ahearn
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health (NIH), Department of Health and Human Services, Bethesda, MD 20892, USA
| | - Natalia N Antonenkova
- N.N. Alexandrov Research Institute of Oncology and Medical Radiology, 223040 Minsk, Belarus
| | - Päivi Auvinen
- Translational Cancer Research Area, University of Eastern Finland, 70210 Kuopio, Finland
- Institute of Clinical Medicine, Oncology, University of Eastern Finland, 70210 Kuopio, Finland
- Department of Oncology, Cancer Center, Kuopio University Hospital, 70210 Kuopio, Finland
| | - Sabine Behrens
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
| | - Marina Bermisheva
- Institute of Biochemistry and Genetics of the Ufa Federal Research Centre of the Russian Academy of Sciences, 450054 Ufa, Russia
| | - Natalia V Bogdanova
- N.N. Alexandrov Research Institute of Oncology and Medical Radiology, 223040 Minsk, Belarus
- Department of Radiation Oncology, Hannover Medical School, 30625 Hannover, Germany
- Gynaecology Research Unit, Hannover Medical School, 30625 Hannover, Germany
| | - Stig E Bojesen
- Copenhagen General Population Study, Copenhagen University Hospital, Herlev and Gentofte Hospital, 2730 Herlev, Denmark
- Department of Clinical Biochemistry, Copenhagen University Hospital, Herlev and Gentofte Hospital, 2730 Herlev, Denmark
- Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Bernardo Bonanni
- Division of Cancer Prevention and Genetics, IEO, European Institute of Oncology IRCCS, 20141 Milan, Italy
| | - Thomas Brüning
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr University Bochum (IPA), 44789 Bochum, Germany
| | - Nicola J Camp
- Department of Internal Medicine and Huntsman Cancer Institute, University of Utah, Salt Lake City, UT 84112, USA
| | - Archie Campbell
- Centre for Genomic and Experimental Medicine, Institute of Genetics & Cancer, University of Edinburgh, Edinburgh EH4 2XU, UK
- Usher Institute of Population Health Sciences and Informatics, University of Edinburgh, Edinburgh EH16 4UX, UK
| | - Jose E Castelao
- Oncology and Genetics Unit, Instituto de Investigación Sanitaria Galicia Sur (IISGS), Xerencia de Xestion Integrada de Vigo-SERGAS, 36312 Vigo, Spain
| | | | - Kamila Czene
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, 171 76 Stockholm, Sweden
| | - Peter Devilee
- Department of Pathology, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands
- Department of Human Genetics, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands
| | - Thilo Dörk
- Gynaecology Research Unit, Hannover Medical School, 30625 Hannover, Germany
| | - Mikael Eriksson
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, 171 76 Stockholm, Sweden
| | - Peter A Fasching
- Department of Gynecology and Obstetrics, University Hospital Erlangen, Comprehensive Cancer Center Erlangen-EMN, Friedrich-Alexander University Erlangen-Nuremberg, 91054 Erlangen, Germany
| | - Henrik Flyger
- Department of Breast Surgery, Copenhagen University Hospital, Herlev and Gentofte Hospital, 2730 Herlev, Denmark
| | - Marike Gabrielson
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, 171 76 Stockholm, Sweden
| | - Manuela Gago-Dominguez
- Instituto de Investigación Sanitaria de Santiago de Compostela (FIDIS) Foundation, IDIS Cancer Genetics and Epidemiology Group, Genomic Medicine Group, Complejo Hospitalario Universitario de Santiago, SERGAS, 15706 Santiago de Compostela, Spain
| | - Montserrat García-Closas
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health (NIH), Department of Health and Human Services, Bethesda, MD 20892, USA
| | - Gord Glendon
- Lunenfeld-Tanenbaum Research Institute of Mount Sinai Hospital, Fred A. Litwin Center for Cancer Genetics, Toronto, ON M5G 1X5, Canada
- Laboratory Medicine Program, University Health Network, Toronto, ON M5G 2C4, Canada
| | - Encarna B Gómez Garcia
- Department of Clinical Genetics, Maastricht University Medical Center, 6229 HX Maastricht, The Netherlands
| | - Anna González-Neira
- Human Genotyping Unit-CeGen, Spanish National Cancer Research Centre (CNIO), 28029 Madrid, Spain
| | - Felix Grassmann
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, 171 76 Stockholm, Sweden
- Department of Medicine, Institute for Clinical Research and Systems Medicine, Health and Medical University, 14467 Potsdam, Germany
| | - Pascal Guénel
- CESP U1018, Inserm "Exposome, Heredity, Cancer and Health" Team, UVSQ, University Paris-Saclay, Gustave Roussy, 94805 Villejuif, France
| | - Eric Hahnen
- Center for Familial Breast and Ovarian Cancer, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50937 Cologne, Germany
- Center for Integrated Oncology (CIO), Faculty of Medicine and University Hospital Cologne, University of Cologne, 50937 Cologne, Germany
| | - Ute Hamann
- German Cancer Research Center (DKFZ), Molecular Genetics of Breast Cancer, 69120 Heidelberg, Germany
| | - Peter Hillemanns
- Gynaecology Research Unit, Hannover Medical School, 30625 Hannover, Germany
| | - Maartje J Hooning
- Department of Medical Oncology, Erasmus MC Cancer Institute, 3015 GD Rotterdam, The Netherlands
| | - Reiner Hoppe
- Dr. Margarete Fischer-Bosch-Institute of Clinical Pharmacology, 70376 Stuttgart, Germany
- University of Tübingen, 72074 Tübingen, Germany
| | - Anthony Howell
- Division of Cancer Sciences, University of Manchester, Manchester M13 9PL, UK
| | - Keith Humphreys
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, 171 76 Stockholm, Sweden
| | - Anna Jakubowska
- Department of Genetics and Pathology, International Hereditary Cancer Center, Pomeranian Medical University in Szczecin, 71-252 Szczecin, Poland
- Independent Laboratory of Molecular Biology and Genetic Diagnostics, Pomeranian Medical University in Szczecin, 71-252 Szczecin, Poland
| | - Elza K Khusnutdinova
- Institute of Biochemistry and Genetics of the Ufa Federal Research Centre of the Russian Academy of Sciences, 450054 Ufa, Russia
- Department of Genetics and Fundamental Medicine, Ufa University of Science and Technology, 450076 Ufa, Russia
| | - Vessela N Kristensen
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, 0450 Oslo, Norway
- Department of Medical Genetics, Oslo University Hospital and University of Oslo, 0379 Oslo, Norway
| | - Annika Lindblom
- Department of Molecular Medicine and Surgery, Karolinska Institutet, 171 76 Stockholm, Sweden
- Department of Clinical Genetics, Karolinska University Hospital, 171 76 Stockholm, Sweden
| | - Maria A Loizidou
- Department of Cancer Genetics, Therapeutics and Ultrastructural Pathology, The Cyprus Institute of Neurology & Genetics, 2371 Nicosia, Cyprus
| | - Jan Lubiński
- Department of Genetics and Pathology, International Hereditary Cancer Center, Pomeranian Medical University in Szczecin, 71-252 Szczecin, Poland
| | - Arto Mannermaa
- Translational Cancer Research Area, University of Eastern Finland, 70210 Kuopio, Finland
- Institute of Clinical Medicine, Pathology and Forensic Medicine, University of Eastern Finland, 70210 Kuopio, Finland
- Kuopio University Hospital, Biobank of Eastern Finland, 70210 Kuopio, Finland
| | - Tabea Maurer
- Cancer Epidemiology Group, University Cancer Center Hamburg (UCCH), University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Dimitrios Mavroudis
- Department of Medical Oncology, University Hospital of Heraklion, 711 10 Heraklion, Greece
| | - William G Newman
- Division of Evolution, Infection and Genomics, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester M13 9PL, UK
- Manchester Centre for Genomic Medicine, St. Mary's Hospital, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester M13 9WL, UK
| | - Nadia Obi
- University Medical Center Hamburg-Eppendorf, Institute for Medical Biometry and Epidemiology, 20246 Hamburg, Germany
| | - Mihalis I Panayiotidis
- Department of Cancer Genetics, Therapeutics and Ultrastructural Pathology, The Cyprus Institute of Neurology & Genetics, 2371 Nicosia, Cyprus
| | - Paolo Radice
- Unit of 'Predictive Medicine: Molecular Bases of Genetic Risk', Department of Experimental Oncology, Fondazione IRCCS Istituto Nazionale dei Tumori (INT), 20133 Milan, Italy
| | - Muhammad U Rashid
- German Cancer Research Center (DKFZ), Molecular Genetics of Breast Cancer, 69120 Heidelberg, Germany
- Department of Basic Sciences, Shaukat Khanum Memorial Cancer Hospital and Research Centre (SKMCH & RC), Lahore 54000, Pakistan
| | - Valerie Rhenius
- Centre for Cancer Genetic Epidemiology, Department of Oncology, University of Cambridge, Cambridge CB1 8RN, UK
| | - Matthias Ruebner
- Department of Gynecology and Obstetrics, University Hospital Erlangen, Comprehensive Cancer Center Erlangen-EMN, Friedrich-Alexander University Erlangen-Nuremberg, 91054 Erlangen, Germany
| | | | - Elinor J Sawyer
- King's College London, School of Cancer & Pharmaceutical Sciences, Comprehensive Cancer Centre, Guy's Campus, London SE1 9RT, UK
| | - Marjanka K Schmidt
- Division of Molecular Pathology, The Netherlands Cancer Institute, 1066 CX Amsterdam, The Netherlands
- Division of Psychosocial Research and Epidemiology, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, 1066 CX Amsterdam, The Netherlands
- Department of Clinical Genetics, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands
| | - Rita K Schmutzler
- Center for Familial Breast and Ovarian Cancer, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50937 Cologne, Germany
- Center for Integrated Oncology (CIO), Faculty of Medicine and University Hospital Cologne, University of Cologne, 50937 Cologne, Germany
- Center for Molecular Medicine Cologne (CMMC), Faculty of Medicine and University Hospital Cologne, University of Cologne, 50931 Cologne, Germany
| | - Mitul Shah
- Centre for Cancer Genetic Epidemiology, Department of Oncology, University of Cambridge, Cambridge CB1 8RN, UK
| | - Melissa C Southey
- Precision Medicine, School of Clinical Sciences at Monash Health, Monash University, Clayton, VIC 3168, Australia
- Department of Clinical Pathology, The University of Melbourne, Melbourne, VIC 3000, Australia
- Cancer Epidemiology Division, Cancer Council Victoria, Melbourne, VIC 3004, Australia
| | - Ian Tomlinson
- Cancer Research Centre, The University of Edinburgh, Edinburgh EH4 2XU, UK
| | - Thérèse Truong
- CESP U1018, Inserm "Exposome, Heredity, Cancer and Health" Team, UVSQ, University Paris-Saclay, Gustave Roussy, 94805 Villejuif, France
| | - Elke M van Veen
- Division of Evolution, Infection and Genomics, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester M13 9PL, UK
- Manchester Centre for Genomic Medicine, St. Mary's Hospital, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester M13 9WL, UK
| | - Camilla Wendt
- Department of Clinical Science and Education, Karolinska Institutet, Södersjukhuset, 118 83 Stockholm, Sweden
| | - Xiaohong R Yang
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health (NIH), Department of Health and Human Services, Bethesda, MD 20892, USA
| | - Kyriaki Michailidou
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, Cambridge CB1 8RN, UK
- Biostatistics Unit, The Cyprus Institute of Neurology & Genetics, 2371 Nicosia, Cyprus
| | - Alison M Dunning
- Centre for Cancer Genetic Epidemiology, Department of Oncology, University of Cambridge, Cambridge CB1 8RN, UK
| | - Paul D P Pharoah
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, Cambridge CB1 8RN, UK
- Centre for Cancer Genetic Epidemiology, Department of Oncology, University of Cambridge, Cambridge CB1 8RN, UK
- Department of Computational Biomedicine, Cedars-Sinai Medical Center, West Hollywood, CA 90069, USA
| | - Douglas F Easton
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, Cambridge CB1 8RN, UK
- Centre for Cancer Genetic Epidemiology, Department of Oncology, University of Cambridge, Cambridge CB1 8RN, UK
| | - Irene L Andrulis
- Lunenfeld-Tanenbaum Research Institute of Mount Sinai Hospital, Fred A. Litwin Center for Cancer Genetics, Toronto, ON M5G 1X5, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - D Gareth Evans
- Division of Evolution, Infection and Genomics, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester M13 9PL, UK
- Manchester Centre for Genomic Medicine, St. Mary's Hospital, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester M13 9WL, UK
| | - Antoinette Hollestelle
- Department of Medical Oncology, Erasmus MC Cancer Institute, 3015 GD Rotterdam, The Netherlands
| | - Jenny Chang-Claude
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
- Cancer Epidemiology Group, University Cancer Center Hamburg (UCCH), University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Roger L Milne
- Precision Medicine, School of Clinical Sciences at Monash Health, Monash University, Clayton, VIC 3168, Australia
- Cancer Epidemiology Division, Cancer Council Victoria, Melbourne, VIC 3004, Australia
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, VIC 3010, Australia
| | - Paolo Peterlongo
- Genome Diagnostics Program, IFOM ETS-The AIRC Institute of Molecular Oncology, 20139 Milan, Italy
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Dutta R, Vallurupalli M, McVeigh Q, Huang FW, Rebbeck TR. Understanding inequities in precision oncology diagnostics. NATURE CANCER 2023; 4:787-794. [PMID: 37248397 DOI: 10.1038/s43018-023-00568-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 04/13/2023] [Indexed: 05/31/2023]
Abstract
Advances in molecular diagnostics have enabled the identification of targetable driver pathogenic variants, forming the basis of precision oncology care. However, the adoption of new technologies, such as next-generation sequencing (NGS) panels, can exacerbate healthcare disparities. Here, we summarize data on use patterns of advanced biomarker testing, highlight the disparities in both accessing NGS testing and using this data to match patients to appropriate personalized therapies and propose multidisciplinary strategies to address inequities looking forward.
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Affiliation(s)
- Ritika Dutta
- Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Mounica Vallurupalli
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
- Cancer Program, Broad Institute, Cambridge, MA, USA
| | - Quinn McVeigh
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
- Cancer Program, Broad Institute, Cambridge, MA, USA
| | - Franklin W Huang
- Cancer Program, Broad Institute, Cambridge, MA, USA.
- Division of Hematology and Oncology, Department of Medicine, University of California, San Francisco, San Francisco, CA, USA.
- Chan Zuckerberg Biohub, San Francisco, CA, USA.
- San Francisco Veterans Health Care System, San Francisco, CA, USA.
| | - Timothy R Rebbeck
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA.
- Harvard TH Chan School of Public Health, Boston, MA, USA.
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Panacer KS. Ethical Issues Associated With Direct-to-Consumer Genetic Testing. Cureus 2023; 15:e39918. [PMID: 37404400 PMCID: PMC10317585 DOI: 10.7759/cureus.39918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/03/2023] [Indexed: 07/06/2023] Open
Abstract
Direct-to-consumer genetic testing (DTC-GT) is becoming an increasingly profitable private enterprise that provides genetic testing kits directly to consumers. DTC-GT companies advertise themselves as a method for patients to take control of their own health and investigate their risk of diseases and conditions as well as look into their ancestry. The scope of practice of these companies continues to widen offering more services. Consumers may therefore have a relatively poor understanding of the services provided when purchasing these products. The testing methods utilised show some limitations, the consequences of which have the possibility of leading to harm to consumers. The result of the data gathered may instigate the formation of negative stereotypes from the public and reinforce existing ones towards a population that may have already been previously subjugated to unfair treatment. The controversy surrounding how data are utilised further impacts how many may engage in its use. This review aims to provide an overview of the services these companies purport to provide as well as highlight important ethical issues of the service such as quality of information, privacy concerns, negative psychosocial impact and the effect on clinical practice.
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Avelar RA, Armstrong AJ, Carvette G, Gupta R, Puleo N, Colina JA, Joseph P, Sobeck AM, O'Connor CM, Raines B, Gandhi A, Dziubinski ML, Ma DS, Resnick K, Singh S, Zanotti K, Nagel C, Waggoner S, Thomas DG, Skala SL, Zhang J, Narla G, DiFeo A. Small-Molecule-Mediated Stabilization of PP2A Modulates the Homologous Recombination Pathway and Potentiates DNA Damage-Induced Cell Death. Mol Cancer Ther 2023; 22:599-615. [PMID: 36788429 PMCID: PMC10157366 DOI: 10.1158/1535-7163.mct-21-0880] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 05/17/2022] [Accepted: 02/09/2023] [Indexed: 02/16/2023]
Abstract
High-grade serous carcinoma (HGSC) is the most common and lethal ovarian cancer subtype. PARP inhibitors (PARPi) have become the mainstay of HGSC-targeted therapy, given that these tumors are driven by a high degree of genomic instability (GI) and homologous recombination (HR) defects. Nonetheless, approximately 30% of patients initially respond to treatment, ultimately relapsing with resistant disease. Thus, despite recent advances in drug development and an increased understanding of genetic alterations driving HGSC progression, mortality has not declined, highlighting the need for novel therapies. Using a small-molecule activator of protein phosphatase 2A (PP2A; SMAP-061), we investigated the mechanism by which PP2A stabilization induces apoptosis in patient-derived HGSC cells and xenograft (PDX) models alone or in combination with PARPi. We uncovered that PP2A genes essential for cellular transformation (B56α, B56γ, and PR72) and basal phosphatase activity (PP2A-A and -C) are heterozygously lost in the majority of HGSC. Moreover, loss of these PP2A genes correlates with worse overall patient survival. We show that SMAP-061-induced stabilization of PP2A inhibits the HR output by targeting RAD51, leading to chronic accumulation of DNA damage and ultimately apoptosis. Furthermore, combination of SMAP-061 and PARPi leads to enhanced apoptosis in both HR-proficient and HR-deficient HGSC cells and PDX models. Our studies identify PP2A as a novel regulator of HR and indicate PP2A modulators as a therapeutic therapy for HGSC. In summary, our findings further emphasize the potential of PP2A modulators to overcome PARPi insensitivity, given that targeting RAD51 presents benefits in overcoming PARPi resistance driven by BRCA1/2 mutation reversions.
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Affiliation(s)
- Rita A. Avelar
- Department of Pathology, University of Michigan, Ann Arbor, Michigan
- The Rogel Cancer Center, University of Michigan, Ann Arbor, Michigan
| | | | - Gracie Carvette
- Department of Pathology, University of Michigan, Ann Arbor, Michigan
- The Rogel Cancer Center, University of Michigan, Ann Arbor, Michigan
| | - Riya Gupta
- Department of Pathology, University of Michigan, Ann Arbor, Michigan
- The Rogel Cancer Center, University of Michigan, Ann Arbor, Michigan
| | - Noah Puleo
- Department of Pathology, University of Michigan, Ann Arbor, Michigan
- The Rogel Cancer Center, University of Michigan, Ann Arbor, Michigan
| | - Jose A. Colina
- Department of Pathology, University of Michigan, Ann Arbor, Michigan
- The Rogel Cancer Center, University of Michigan, Ann Arbor, Michigan
| | - Peronne Joseph
- Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, Ohio
| | - Alexander M. Sobeck
- Department of Pathology, University of Michigan, Ann Arbor, Michigan
- The Rogel Cancer Center, University of Michigan, Ann Arbor, Michigan
| | - Caitlin M. O'Connor
- The Rogel Cancer Center, University of Michigan, Ann Arbor, Michigan
- Department of Internal Medicine, Genetic Medicine, University of Michigan, Ann Arbor, Michigan
| | - Brynne Raines
- The Rogel Cancer Center, University of Michigan, Ann Arbor, Michigan
- Department of Internal Medicine, Genetic Medicine, University of Michigan, Ann Arbor, Michigan
| | - Agharnan Gandhi
- Department of Pathology, University of Michigan, Ann Arbor, Michigan
- The Rogel Cancer Center, University of Michigan, Ann Arbor, Michigan
| | - Michele L. Dziubinski
- Department of Pathology, University of Michigan, Ann Arbor, Michigan
- The Rogel Cancer Center, University of Michigan, Ann Arbor, Michigan
| | - Daniel S. Ma
- Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, Ohio
| | | | | | | | | | | | - Daffyd G. Thomas
- Department of Pathology, University of Michigan, Ann Arbor, Michigan
| | | | - Junran Zhang
- Department of Radiation Oncology, Ohio State University, Columbus, Ohio
| | - Goutham Narla
- The Rogel Cancer Center, University of Michigan, Ann Arbor, Michigan
- Department of Internal Medicine, Genetic Medicine, University of Michigan, Ann Arbor, Michigan
| | - Analisa DiFeo
- Department of Pathology, University of Michigan, Ann Arbor, Michigan
- The Rogel Cancer Center, University of Michigan, Ann Arbor, Michigan
- Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, Michigan
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Abstract
Breast cancer is the most common cancer in women globally with enormous associated morbidity, mortality and economic impact. Prevention of breast cancer is a global public health imperative. To date, most of our global efforts have been directed at expanding population breast cancer screening programs for early cancer detection and not at breast cancer prevention efforts. It is imperative that we change the paradigm. As with other diseases, prevention of breast cancer starts with identification of individuals at high risk, and for breast cancer this requires improved identification of individuals who carry a hereditary cancer mutation associated with an elevated risk of breast cancer, and identification of others who are at high risk due to non-genetic, established modifiable and non-modifiable factors. This article will review basic breast cancer genetics and the most common hereditary breast cancer mutations associated with increased risk. We will also discuss the other non-genetic modifiable and non-modifiable breast cancer risk factors, available risk assessment models and an approach to incorporating screening for genetic mutation carriers and identifying high-risk women in clinical practice. A discussion of guidelines for enhanced screening, chemoprevention and surgical management of high-risk women is beyond the scope of this review.
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Affiliation(s)
- L Larkin
- MS.Medicine, Cincinnati, OH, USA
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37
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Kerrison WGJ, Thway K, Jones RL, Huang PH. The biology and treatment of leiomyosarcomas. Crit Rev Oncol Hematol 2023; 184:103955. [PMID: 36893945 DOI: 10.1016/j.critrevonc.2023.103955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 03/04/2023] [Indexed: 03/09/2023] Open
Abstract
Leiomyosarcoma (LMS) is a soft tissue sarcoma of smooth muscle origin that can arise in multiple anatomical sites and is broadly classified as extra-uterine LMS or uterine LMS. There is substantial interpatient heterogeneity within this histological subtype, and despite multi-modal therapy, clinical management remains challenging with poor patient prognosis and few new therapies available. Here we discuss the current treatment landscape of LMS in both the localised and advanced disease setting. We further describe the latest advances in our evolving understanding of the genetics and biology of this group of heterogeneous diseases and summarise the key studies delineating the mechanisms of acquired and intrinsic chemotherapy resistance in this histological subtype. We conclude by providing a perspective on how novel targeted agents such as PARP inhibitors may usher in a new paradigm of biomarker-driven therapies that will ultimately impact the outcomes of patients with LMS.
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Affiliation(s)
- William G J Kerrison
- Division of Molecular Pathology, The Institute of Cancer Research, London, United Kingdom
| | - Khin Thway
- Division of Molecular Pathology, The Institute of Cancer Research, London, United Kingdom; The Royal Marsden NHS Foundation Trust, London, United Kingdom
| | - Robin L Jones
- The Royal Marsden NHS Foundation Trust, London, United Kingdom; Division of Clinical Studies, The Institute of Cancer Research, London, United Kingdom
| | - Paul H Huang
- Division of Molecular Pathology, The Institute of Cancer Research, London, United Kingdom.
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38
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Qin Z, Li J, Tam B, Sinha S, Zhao B, Bhaskaran SP, Huang T, Wu X, Chian JS, Guo M, Kou SH, Lei H, Zhang L, Wang X, Lagniton PNP, Xiao F, Jiang X, Wang SM. Ethnic-specificity, evolution origin and deleteriousness of Asian BRCA variation revealed by over 7500 BRCA variants derived from Asian population. Int J Cancer 2023; 152:1159-1173. [PMID: 36385461 PMCID: PMC10098510 DOI: 10.1002/ijc.34359] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 10/23/2022] [Accepted: 11/08/2022] [Indexed: 11/18/2022]
Abstract
Pathogenic variation in BRCA1 and BRCA2 (BRCA) causes high risk of breast and ovarian cancer, and BRCA variation data are important markers for BRCA-related clinical cancer applications. However, comprehensive BRCA variation data are lacking from the Asian population despite its large population size, heterogenous genetic background and diversified living environment across the Asia continent. We performed a systematic study on BRCA variation in Asian population including extensive data mining, standardization, annotation and characterization. We identified 7587 BRCA variants from 685 592 Asian individuals in 40 Asia countries and regions, including 1762 clinically actionable pathogenic variants and 4915 functionally unknown variants (https://genemutation.fhs.um.edu.mo/Asian-BRCA/). We observed the highly ethnic-specific nature of Asian BRCA variants between Asian and non-Asian populations and within Asian populations, highlighting that the current European descendant population-based BRCA data is inadequate to reflect BRCA variation in the Asian population. We also provided archeological evidence for the evolutionary origin and arising time of Asian BRCA variation. We further provided structural-based evidence for the deleterious variants enriched within the functionally unknown Asian BRCA variants. The data from our study provide a current view of BRCA variation in the Asian population and a rich resource to guide clinical applications of BRCA-related cancer for the Asian population.
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Affiliation(s)
- Zixin Qin
- Ministry of Education Frontiers Science Center for Precision Oncology, Cancer Centre and Institute of Translational Medicine, Department of Public Health and Medical Administration, Faculty of Health Sciences, University of Macau, Macao SAR, China
| | - Jiaheng Li
- Ministry of Education Frontiers Science Center for Precision Oncology, Cancer Centre and Institute of Translational Medicine, Department of Public Health and Medical Administration, Faculty of Health Sciences, University of Macau, Macao SAR, China
| | - Benjamin Tam
- Ministry of Education Frontiers Science Center for Precision Oncology, Cancer Centre and Institute of Translational Medicine, Department of Public Health and Medical Administration, Faculty of Health Sciences, University of Macau, Macao SAR, China
| | - Siddharth Sinha
- Ministry of Education Frontiers Science Center for Precision Oncology, Cancer Centre and Institute of Translational Medicine, Department of Public Health and Medical Administration, Faculty of Health Sciences, University of Macau, Macao SAR, China
| | - Bojin Zhao
- Ministry of Education Frontiers Science Center for Precision Oncology, Cancer Centre and Institute of Translational Medicine, Department of Public Health and Medical Administration, Faculty of Health Sciences, University of Macau, Macao SAR, China
| | - Shanmuga Priya Bhaskaran
- Ministry of Education Frontiers Science Center for Precision Oncology, Cancer Centre and Institute of Translational Medicine, Department of Public Health and Medical Administration, Faculty of Health Sciences, University of Macau, Macao SAR, China
| | - Teng Huang
- Ministry of Education Frontiers Science Center for Precision Oncology, Cancer Centre and Institute of Translational Medicine, Department of Public Health and Medical Administration, Faculty of Health Sciences, University of Macau, Macao SAR, China
| | - Xiaobing Wu
- Ministry of Education Frontiers Science Center for Precision Oncology, Cancer Centre and Institute of Translational Medicine, Department of Public Health and Medical Administration, Faculty of Health Sciences, University of Macau, Macao SAR, China
| | - Jia Sheng Chian
- Ministry of Education Frontiers Science Center for Precision Oncology, Cancer Centre and Institute of Translational Medicine, Department of Public Health and Medical Administration, Faculty of Health Sciences, University of Macau, Macao SAR, China
| | - Maoni Guo
- Ministry of Education Frontiers Science Center for Precision Oncology, Cancer Centre and Institute of Translational Medicine, Department of Public Health and Medical Administration, Faculty of Health Sciences, University of Macau, Macao SAR, China
| | - Si Hoi Kou
- Ministry of Education Frontiers Science Center for Precision Oncology, Cancer Centre and Institute of Translational Medicine, Department of Public Health and Medical Administration, Faculty of Health Sciences, University of Macau, Macao SAR, China
| | - Huijun Lei
- Ministry of Education Frontiers Science Center for Precision Oncology, Cancer Centre and Institute of Translational Medicine, Department of Public Health and Medical Administration, Faculty of Health Sciences, University of Macau, Macao SAR, China
| | - Li Zhang
- Ministry of Education Frontiers Science Center for Precision Oncology, Cancer Centre and Institute of Translational Medicine, Department of Public Health and Medical Administration, Faculty of Health Sciences, University of Macau, Macao SAR, China
| | - Xiaoyu Wang
- Ministry of Education Frontiers Science Center for Precision Oncology, Cancer Centre and Institute of Translational Medicine, Department of Public Health and Medical Administration, Faculty of Health Sciences, University of Macau, Macao SAR, China
| | - Philip Naderev P Lagniton
- Ministry of Education Frontiers Science Center for Precision Oncology, Cancer Centre and Institute of Translational Medicine, Department of Public Health and Medical Administration, Faculty of Health Sciences, University of Macau, Macao SAR, China
| | - Fengxia Xiao
- Ministry of Education Frontiers Science Center for Precision Oncology, Cancer Centre and Institute of Translational Medicine, Department of Public Health and Medical Administration, Faculty of Health Sciences, University of Macau, Macao SAR, China
| | - Xinyang Jiang
- Ministry of Education Frontiers Science Center for Precision Oncology, Cancer Centre and Institute of Translational Medicine, Department of Public Health and Medical Administration, Faculty of Health Sciences, University of Macau, Macao SAR, China
| | - San Ming Wang
- Ministry of Education Frontiers Science Center for Precision Oncology, Cancer Centre and Institute of Translational Medicine, Department of Public Health and Medical Administration, Faculty of Health Sciences, University of Macau, Macao SAR, China
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Mazzonetto P, Milanezi F, D'Andrea M, Martins S, Monfredini PM, Dos Santos Silva J, Perrone E, Villela D, Schnabel B, Nakano V, Palmero EI, Braggio E, Cavalcanti TL, Guida G, Migliavacca MP, Scapulatempo-Neto C, Zalcberg I. BRCA1 and BRCA2 germline mutation analysis from a cohort of 1267 patients at high risk for breast cancer in Brazil. Breast Cancer Res Treat 2023; 199:127-136. [PMID: 36881271 DOI: 10.1007/s10549-023-06892-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 02/11/2023] [Indexed: 03/08/2023]
Abstract
We determined the frequency and mutational spectrum of BRCA1 and BRCA2 in a series of patients at high risk for developing breast cancer from Brazil. A total of 1267 patients were referred for BRCA genetic testing, and no obligation of fulfilling criteria of mutation probability methods for molecular screening was applied. Germline deleterious mutations in BRCA1/2 (i.e., pathogenic/likely pathogenic variants) were identified in 156 out of 1267 patients (12%). We confirm recurrent mutations in BRCA1/2, but we also report three novel mutations in BRCA2, not previously reported in any public databases or other studies. Variants of unknown significance (VUS) represent only 2% in this dataset and most of them were detected in BRCA2. The overall mutation prevalence in BRCA1/2 was higher in patients diagnosed with cancer at age > 35 years old, and with family history of cancer. The present data expand our knowledge of BRCA1/2 germline mutational spectrum, and it is a valuable clinical resource for genetic counseling and cancer management programs in the country.
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Affiliation(s)
- Patricia Mazzonetto
- Diagnósticos da América S.A., DASA, Av. Divino Salvador, 876 3Rd Floor, Zip Code, São Paulo-SP, 04078-013, Brazil
| | - Fernanda Milanezi
- Diagnósticos da América S.A., DASA, Av. Divino Salvador, 876 3Rd Floor, Zip Code, São Paulo-SP, 04078-013, Brazil
| | - Mariana D'Andrea
- Diagnósticos da América S.A., DASA, Av. Divino Salvador, 876 3Rd Floor, Zip Code, São Paulo-SP, 04078-013, Brazil
| | - Silvia Martins
- Diagnósticos da América S.A., DASA, Av. Divino Salvador, 876 3Rd Floor, Zip Code, São Paulo-SP, 04078-013, Brazil
| | - Priscilla M Monfredini
- Diagnósticos da América S.A., DASA, Av. Divino Salvador, 876 3Rd Floor, Zip Code, São Paulo-SP, 04078-013, Brazil
| | - Juliana Dos Santos Silva
- Diagnósticos da América S.A., DASA, Av. Divino Salvador, 876 3Rd Floor, Zip Code, São Paulo-SP, 04078-013, Brazil
| | - Eduardo Perrone
- Diagnósticos da América S.A., DASA, Av. Divino Salvador, 876 3Rd Floor, Zip Code, São Paulo-SP, 04078-013, Brazil
| | - Darine Villela
- Diagnósticos da América S.A., DASA, Av. Divino Salvador, 876 3Rd Floor, Zip Code, São Paulo-SP, 04078-013, Brazil
| | - Beatriz Schnabel
- Diagnósticos da América S.A., DASA, Av. Divino Salvador, 876 3Rd Floor, Zip Code, São Paulo-SP, 04078-013, Brazil
| | - Viviane Nakano
- Diagnósticos da América S.A., DASA, Av. Divino Salvador, 876 3Rd Floor, Zip Code, São Paulo-SP, 04078-013, Brazil
| | - Edenir Inez Palmero
- Diagnósticos da América S.A., DASA, Av. Divino Salvador, 876 3Rd Floor, Zip Code, São Paulo-SP, 04078-013, Brazil
| | - Esteban Braggio
- Diagnósticos da América S.A., DASA, Av. Divino Salvador, 876 3Rd Floor, Zip Code, São Paulo-SP, 04078-013, Brazil
| | - Thereza L Cavalcanti
- Diagnósticos da América S.A., DASA, Av. Divino Salvador, 876 3Rd Floor, Zip Code, São Paulo-SP, 04078-013, Brazil
| | - Gustavo Guida
- Diagnósticos da América S.A., DASA, Av. Divino Salvador, 876 3Rd Floor, Zip Code, São Paulo-SP, 04078-013, Brazil
| | - Michele P Migliavacca
- Diagnósticos da América S.A., DASA, Av. Divino Salvador, 876 3Rd Floor, Zip Code, São Paulo-SP, 04078-013, Brazil
| | - Cristovam Scapulatempo-Neto
- Diagnósticos da América S.A., DASA, Av. Divino Salvador, 876 3Rd Floor, Zip Code, São Paulo-SP, 04078-013, Brazil
| | - Ilana Zalcberg
- Diagnósticos da América S.A., DASA, Av. Divino Salvador, 876 3Rd Floor, Zip Code, São Paulo-SP, 04078-013, Brazil.
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40
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Wang SM. A global perspective on the ethnic-specific BRCA variation and its implication in clinical application. JOURNAL OF THE NATIONAL CANCER CENTER 2023; 3:14-20. [PMID: 39036311 PMCID: PMC11256725 DOI: 10.1016/j.jncc.2022.12.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 11/25/2022] [Accepted: 12/02/2022] [Indexed: 12/23/2022] Open
Abstract
Pathogenic BRCA1 and BRCA2 (BRCA) variation is the genetic predisposition for high cancer risk affecting mostly breast and ovarian. BRCA variation information is widely used in clinical diagnosis, treatment, and prevention of BRCA-related cancer. The positive selection imposed on human BRCA leads to highly ethnic-specific BRCA variation to adapt different living environment on earth. Most of the human BRCA variants identified so far were from the European descendant populations and used as the standard reference for global human populations, whereas BRCA variation in other ethnic populations remains poorly characterized. This review addresses the origin of ethnic-specific BRCA variation, the importance of ethnic-specific BRCA variation in clinical application, the limitation of current BRCA variation data, and potential solutions to fill the gap.
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Affiliation(s)
- San Ming Wang
- Ministry of Education Frontiers Science Center for Precision Oncology, Cancer Center and Institute of Translational Medicine, Department of Public Health and Medical Administration, Faculty of Health Sciences, University of Macau, Macao SAR, China
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41
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Melnik BC, John SM, Carrera-Bastos P, Cordain L, Leitzmann C, Weiskirchen R, Schmitz G. The Role of Cow's Milk Consumption in Breast Cancer Initiation and Progression. Curr Nutr Rep 2023; 12:122-140. [PMID: 36729355 PMCID: PMC9974716 DOI: 10.1007/s13668-023-00457-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/06/2022] [Indexed: 02/03/2023]
Abstract
PURPOSE OF REVIEW This review evaluates cow milk's impact on breast carcinogenesis by linking recent epidemiological evidence and new insights into the molecular signaling of milk and its constituents in breast cancer (BCa) pathogenesis. RECENT FINDINGS Recent prospective cohort studies support the association between cow's milk consumption and the risk of estrogen receptor-α-positive (ER+) BCa. Milk is a complex biological fluid that increases systemic insulin-like growth factor 1 (IGF-1), insulin and estrogen signaling, and interacting hormonal promoters of BCa. Further potential oncogenic components of commercial milk include exosomal microRNAs (miR-148a-3p, miR-21-5p), bovine meat and milk factors, aflatoxin M1, bisphenol A, pesticides, and micro- and nanoplastics. Individuals with BRCA1 loss-of-function mutations and FTO and IGF1 gain-of-function polymorphisms enhancing IGF-1/mTORC1 signaling may be at increased risk for milk-induced ER+ BCa. Recent prospective epidemiological and pathobiochemical studies identify commercial milk consumption as a critical risk factor of ER+ BCa. Large meta-analyses gathering individuals of different ethnic origins with milk derived from dairy cows of varying genetic backgrounds and diverse feeding procedures as well as missing data on thermal processing of milk (pasteurization versus ultra-heat treatment) make multi-national meta-analyses unsuitable for BCa risk estimations in susceptible populations. Future studies are required that consider all vulnerable periods of breast carcinogenesis to cow's milk exposure, beginning during the perinatal period and puberty, since these are the most critical periods of mammary gland morphogenesis. Notwithstanding the need for better studies including detailed information on milk processing and vulnerable periods of human breast carcinogenesis, the available evidence suggests that dietary guidelines on milk consumption may have to be reconsidered.
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Affiliation(s)
- Bodo C Melnik
- Department of Dermatology, Environmental Medicine and Health Theory, University of Osnabrück, D-49076, Osnabrück, Germany.
| | - Swen Malte John
- Department of Dermatology, Environmental Medicine and Health Theory, University of Osnabrück, D-49076, Osnabrück, Germany
- Institute for Interdisciplinary Dermatological Prevention and Rehabilitation (iDerm) at the University of Osnabrück, Lower-Saxonian Institute of Occupational Dermatology (NIB), Osnabrück, Germany
| | - Pedro Carrera-Bastos
- Center for Primary Health Care Research, Lund University/Region Skåne, Skåne University Hospital, 205 02, Malmö, Sweden
- Faculty of Biomedical and Health Sciences, Universidad Europea de Madrid, 28670, Madrid, Spain
- Centro de Estudios Avanzados en Nutrición (CEAN), 11007, Cádiz, Spain
| | | | - Claus Leitzmann
- Institute of Nutrition, University of Giessen, 35390, Giessen, Germany
| | - Ralf Weiskirchen
- Institute of Molecular Pathobiochemistry, Experimental Gene Therapy and Clinical Chemistry (IFMPEGKC), RWTH University Hospital Aachen, D-52074, Aachen, Germany
| | - Gerd Schmitz
- Institute for Clinical Chemistry and Laboratory Medicine, University Hospital of Regensburg, University of Regensburg, D-93053, Regensburg, Germany
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42
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Rao ND, Shirts BH. Using species richness calculations to model the global profile of unsampled pathogenic variants: Examples from BRCA1 and BRCA2. PLoS One 2023; 18:e0278010. [PMID: 36753473 PMCID: PMC9907816 DOI: 10.1371/journal.pone.0278010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 01/26/2023] [Indexed: 02/09/2023] Open
Abstract
There have been many surveys of genetic variation in BRCA1 and BRCA2 to identify variant prevalence and catalogue population specific variants, yet none have evaluated the magnitude of unobserved variation. We applied species richness estimation methods from ecology to estimate "variant richness" and determine how many germline pathogenic BRCA1/2 variants have yet to be identified and the frequency of these missing variants in different populations. We also estimated the prevalence of germline pathogenic BRCA1/2 variants and identified those expected to be most common. Data was obtained from a literature search including studies conducted globally that tested the entirety of BRCA1/2 for pathogenic variation. Across countries, 45% to 88% of variants were estimated to be missing, i.e., present in the population but not observed in study data. Estimated variant frequencies in each country showed a higher proportion of rare variants compared to recurrent variants. The median prevalence estimate of BRCA1/2 pathogenic variant carriers was 0.64%. BRCA1 c.68_69del is likely the most recurrent BRCA1/2 variant globally due to its estimated prevalence in India. Modeling variant richness using ecology methods may assist in evaluating clinical targeted assays by providing a picture of what is observed with estimates of what is still unknown.
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Affiliation(s)
- Nandana D. Rao
- Institute for Public Health Genetics, University of Washington, Seattle, Washington, United States of America
| | - Brian H. Shirts
- Institute for Public Health Genetics, University of Washington, Seattle, Washington, United States of America
- Department of Laboratory Medicine, University of Washington, Seattle, Washington, United States of America
- Brotman Baty Institute for Precision Medicine, Seattle, Washington, United States of America
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Marchetti C, Ataseven B, Cassani C, Sassu CM, Congedo L, D'Indinosante M, Cappuccio S, Rhiem K, Hahnen E, Lucci Cordisco E, Arbustini E, Harter P, Minucci A, Scambia G, Fagotti A. Ovarian cancer onset across different BRCA mutation types: a view to a more tailored approach for BRCA mutated patients. Int J Gynecol Cancer 2023; 33:257-262. [PMID: 36581488 DOI: 10.1136/ijgc-2022-003893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
OBJECTIVE To evaluate the role of different specific types of germline breast cancer susceptibility BRCA mutations on the age of onset of high grade serous ovarian cancer. METHODS This was a multicenter, international, retrospective cohort of 474 patients diagnosed with recurrent or newly diagnosed high grade serous ovarian cancer, with known germline mutations in BRCA1/2 genes, treated between January 2011 and December 2020 in three academic centers in Europe. Patients were classified into four groups related to the type of BRCA1/2 genes mutation: frameshift, missense, nonsense, and splicing. Data from patients with splicing mutations were removed from the analysis because of the small numbers. The other three groups were compared. RESULTS Excluding the 29 patients with a splicing mutation, 474 patients were enrolled: 309 (65.2%) with frameshift mutations, 102 (21.5%) with nonsense mutations, and 63 (13.3%) with missense mutations. The BRCA1 gene was affected in 324 (68.4%) cases, while BRCA2 was involved in 150 (31.6%) women (p=0.06). We found a difference of more than 5 years in the age of onset of high grade serous ovarian cancer between BRCA1 and BRCA2 patients (mean 53.3 years vs 58.4 years; p=0.001), with a mean age of 55.1 years. Patients with nonsense germline mutations had the youngest age of onset, while women with frameshift mutations had the oldest age of onset of high grade serous ovarian cancer (mean 52.2 years vs mean 55.9 years), both in the BRCA1 and BRCA2 subgroups. There was no statistically significant difference in age of onset between early and advanced groups (mean 55.8 years vs 55.0 years; p=0.55). CONCLUSION Different types of germline BRCA mutations could determine different ages for onset of high grade serous ovarian cancer. If confirmed in larger series, this finding might have a clinical impact, potentially leading to a more tailored approach for risk reducing surgery for the prevention of high grade serous ovarian cancer.
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Affiliation(s)
- Claudia Marchetti
- Dipartimento Scienze della Salute della Donna e del Bambino, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Roma, Italy
- Dipartimento Scienze della Vita e Sanità Pubblica, Università Cattolica del Sacro Cuore, Roma, Italy
| | - Beyhan Ataseven
- Department of Gynecology and Gynecologic Oncology, Evangelische Kliniken Essen-Mitte, Evangelische Huyssens-Stiftung Essen-Huttrop, Essen, Germany
- Department of Obstetrics and Gynecology, University Hospital, LMU Munich, Germany
| | - Chiara Cassani
- Department of Clinical, Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy
- Unit of Obstetrics and Gynecology, IRCCS, Fondazione Policlinico San Matteo, Pavia, Italy
| | - Carolina Maria Sassu
- Dipartimento Scienze della Salute della Donna e del Bambino, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Roma, Italy
| | - Luigi Congedo
- Dipartimento Scienze della Vita e Sanità Pubblica, Università Cattolica del Sacro Cuore, Roma, Italy
| | - Marco D'Indinosante
- Dipartimento Scienze della Vita e Sanità Pubblica, Università Cattolica del Sacro Cuore, Roma, Italy
| | - Serena Cappuccio
- Dipartimento Scienze della Salute della Donna e del Bambino, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Roma, Italy
| | - Kerstin Rhiem
- Center for Hereditary Breast and Ovarian Cancer, Center for Integrated Oncology (CIO), Medical Faculty, University Hospital Cologne, Koln, Germany
| | - Eric Hahnen
- Center for Hereditary Breast and Ovarian Cancer, Center for Integrated Oncology (CIO), Medical Faculty, University Hospital Cologne, Koln, Germany
| | - Emanuela Lucci Cordisco
- UOC Genetica Medica, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Roma, Italy
- Medicina Genomica, Dipartimento Scienze della Vita e Sanità Pubblica, Universita Cattolica del Sacro Cuore, Roma, Italy
| | - Eloisa Arbustini
- Center for Inherited Cardiovascular Disease, IRCCS, Fondazione Policlinico San Matteo, Pavia, Italy
| | - Philipp Harter
- Department of Gynecology and Gynecologic Oncology, Evangelische Kliniken Essen-Mitte, Evangelische Huyssens-Stiftung Essen-Huttrop, Essen, Germany
| | - Angelo Minucci
- Molecular and Genomic Diagnostics Unit, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Roma, Italy
| | - Giovanni Scambia
- Dipartimento Scienze della Salute della Donna e del Bambino, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Roma, Italy
- Dipartimento Scienze della Vita e Sanità Pubblica, Università Cattolica del Sacro Cuore, Roma, Italy
| | - Anna Fagotti
- Dipartimento Scienze della Salute della Donna e del Bambino, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Roma, Italy
- Dipartimento Scienze della Vita e Sanità Pubblica, Università Cattolica del Sacro Cuore, Roma, Italy
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Carvalho CMD, Braga LDC, Silva LM, Chami AM, Silva Filho ALD. Germline Mutations Landscape in a Cohort of the State of Minas Gerais, Brazil, in Patients Who Underwent Genetic Counseling for Gynecological and Breast Cancer. REVISTA BRASILEIRA DE GINECOLOGIA E OBSTETRÍCIA 2023; 45:74-81. [PMID: 36977404 PMCID: PMC10078886 DOI: 10.1055/s-0042-1757956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023] Open
Abstract
OBJECTIVE The present study evaluated the profile of germline mutations present in patients who underwent genetic counseling for risk assessment for breast cancer (BC), ovarian cancer (OC), and endometrial cancer (EC) with a possible hereditary pattern. METHODS Medical records of 382 patients who underwent genetic counseling after signing an informed consent form were analyzed. A total of 55.76% of patients (213/382) were symptomatic (personal history of cancer), and 44.24% (169/382) were asymptomatic (absence of the disease). The variables analyzed were age, sex, place of birth, personal or family history of BC, OC, EC, as well as other types of cancer associated with hereditary syndromes. The Human Genome Variation Society (HGVS) nomenclature guidelines were used to name the variants, and their biological significance was determined by comparing 11 databases. RESULTS We identified 53 distinct mutations: 29 pathogenic variants, 13 variants of undetermined significance (VUS), and 11 benign. The most frequent mutations were BRCA1 c.470_471delCT, BRCA1 c.4675 + 1G > T, and BRCA2 c.2T> G. Furthermore, 21 variants appear to have been described for the first time in Brazil. In addition to BRCA1/2 mutations, variants in other genes related to hereditary syndromes that predispose to gynecological cancers were found. CONCLUSION This study allowed a deeper understanding of the main mutations identified in families in the state of Minas Gerais and demonstrates the need to assess the family history of non-gynecological cancer for risk assessment of BC, OC, and EC. Moreover, it is an effort that contributes to population studies to evaluate the cancer risk mutation profile in Brazil.
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Affiliation(s)
- Camila Martins de Carvalho
- Department of Obstetrics and Gynecology, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Letícia da Conceição Braga
- OncoTag Desenvolvimento de Produtos e Serviços para Saúde Humana, Belo Horizonte, MG, Brazil
- Translational Research Laboratory in Oncology, Instituto Mário Penna-Ensino, Pesquisa e Inovação, Belo Horizonte, MG, Brazil
| | - Luciana Maria Silva
- OncoTag Desenvolvimento de Produtos e Serviços para Saúde Humana, Belo Horizonte, MG, Brazil
- Cell Biology Service, Diretoria de Pesquisa e Desenvolvimento, Fundação Ezequiel Dias, Belo Horizonte, MG, Brazil
| | - Anisse Marques Chami
- School of Medicine, Campus Botucatu, Universidade Estadual Paulista, Belo Horizonte, MG, Brazil
| | - Agnaldo Lopes da Silva Filho
- Department of Obstetrics and Gynecology, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
- School of Medicine, Campus Botucatu, Universidade Estadual Paulista, Belo Horizonte, MG, Brazil
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Kechin A, Boyarskikh U, Barinov A, Tanas A, Kazakova S, Zhevlova A, Khrapov E, Subbotin S, Mishukova O, Kekeeva T, Demidova I, Filipenko M. A spectrum of BRCA1 and BRCA2 germline deleterious variants in ovarian cancer in Russia. Breast Cancer Res Treat 2023; 197:387-395. [PMID: 36367610 DOI: 10.1007/s10549-022-06782-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 10/23/2022] [Indexed: 11/13/2022]
Abstract
PURPOSE Pathogenic variants (PVs) in BRCA1 and BRCA2 genes are essential biomarkers of an increased breast and ovarian cancer risk and tumor sensitivity to poly ADP ribose polymerase inhibitors. In Russia, eight PVs were thought to be the most common, among which BRCA1 c.5266dup is the most frequently identified one. METHODS We show the distribution of BRCA1/2 PVs identified with quantitative PCR and targeted next-generation sequencing in 1399 ovarian cancer patients recruited into the study from 72 Russian regions in 2015-2021. RESULTS The most abundant PVs were c.5266dup (41.0%), c.4035del (7.0%), c.1961del (6.3%), c.181 T > G (5.2%), c.3756_3759del (1.8%), c.3700_3704del (1.5%), and c.68_69del (1.5%), all found in BRCA1 and known to be recurrent in Russia. Several other frequent PVs were identified: c.5152 + 1G > T (1.2%), c.1687C > T (1.0%), c.4689C > G (0.9%), c.1510del (0.6%), c.2285_2286del (0.6%) in the BRCA1 gene; and c.5286 T > G (1.2%), c.2808_2811del (0.8%), c.3847_3848del (0.8%), c.658_659del (0.7%), c.7879A > T (0.6%), in the BRCA2 gene. For the most common PV in the BRCA2 gene c.5286 T > G, we suggested that it arose about 700 years ago and is a new founder mutation. CONCLUSION This study extends our knowledge about the BRCA1 and BRCA2 pathogenic variants variability.
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Affiliation(s)
- Andrey Kechin
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia. .,Novosibirsk State University, Novosibirsk, 630090, Russia.
| | - Ulyana Boyarskikh
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia
| | - Alexey Barinov
- Moscow City Oncology Hospital No 62 of the Moscow Health Department, Istra, 143423, Russia
| | - Alexander Tanas
- Research Centre for Medical Genetics, Moscow, 115522, Russia
| | | | | | - Evgeniy Khrapov
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia
| | - Sergey Subbotin
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia
| | - Olga Mishukova
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia
| | - Tatiana Kekeeva
- Research Centre for Medical Genetics, Moscow, 115522, Russia
| | - Irina Demidova
- Moscow City Oncology Hospital No 62 of the Moscow Health Department, Istra, 143423, Russia
| | - Maxim Filipenko
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia.,Novosibirsk State University, Novosibirsk, 630090, Russia
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Subaşıoğlu A, Güç ZG, Gür EÖ, Tekindal MA, Atahan MK. Genetic, Surgical and Oncological Approach to Breast Cancer, with BRCA1, BRCA2, CDH1, PALB2, PTEN and TP53 Variants. Eur J Breast Health 2023; 19:55-69. [PMID: 36605468 PMCID: PMC9806937 DOI: 10.4274/ejbh.galenos.2022.2022-7-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 09/25/2022] [Indexed: 12/28/2022]
Abstract
Objective The aim of this study was to determine the frequency of germline variants in BRCA1, BRCA2, CDH1, PALB2, PTEN and TP53 in patients admitted to a medical genetics clinic with breast cancer and to assess these identified variants according to published genetic, surgical and oncological perspectives. Materials and Methods Medical history, and cancer diagnosis information for 195 independent probands with operated breast cancer were collected from requisition forms and medical records. The exonic regions and exon-intron junctions in BRCA1, BRCA2, CDH1, PALB2, PTEN and TP53 genes were sequenced. Analysis of fastq files was performed on the Qiagen Clinical Insight-Analyse Universal with panel-specific pipeline and vcf files were interpreted clinically using Qiagen Clinical Insight-Interpret. Results Gene variants (pathogenic, likely pathogenic and variants of unknown significance) were detected in 53 (27.2%). Detailed information about the patients (age of diagnosis, family history, gender), cancer stage, tumour characteristics (ER, PR, human epidermal growth factor receptor 2 status) and all information related to the detected variants (gene, location, nucleotide and amino acid change, exon number, impact, mutation classification, dbSNP number and HGMD variant class) were assessed. In total, 58 mutations were identified including 14 novel, previously unreported variants. Conclusion Molecular characterization and identification of mutations have important implications for predictive, preventive, and personalized medicine, including genetic counseling and development of specific treatment protocols. We emphasize variants of unknown significance (VUS) as the clinical significance of VUS changes over time and variant classification is important for clinical molecular genetic testing and clinical guidance. This study may provide new insights into risk assessment for variants in CDH1, PALB2, PTEN and TP53, in addition to BRCA1 and BRCA2, which may prove useful for clinical management of breast cancer patients. Further studies are needed to identify the common gene variants in the Turkish population and evaluate the pathogenity of VUS.
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Affiliation(s)
- Aslı Subaşıoğlu
- Department of Medical Genetics, İzmir Katip Çelebi University Faculty of Medicine, İzmir, Turkey,* Address for Correspondence: E-mail:
| | - Zeynep Gülsüm Güç
- Department of Medical Oncology, İzmir Katip Çelebi University Faculty of Medicine, İzmir, Turkey
| | - Emine Özlem Gür
- Department of General Surgery, İzmir Katip Çelebi University Faculty of Medicine, İzmir, Turkey
| | - Mustafa Agah Tekindal
- Department of Biostatistics, İzmir Katip Çelebi University Faculty of Medicine, İzmir, Turkey
| | - Murat Kemal Atahan
- Department of General Surgery, İzmir Katip Çelebi University Faculty of Medicine, İzmir, Turkey
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Vázquez-Romo R, Millan-Catalan O, Ruíz-García E, Martínez-Gutiérrez AD, Alvarado-Miranda A, Campos-Parra AD, López-Camarillo C, Jacobo-Herrera N, López-Urrutia E, Guardado-Estrada M, Cantú de León D, Pérez-Plasencia C. Pathogenic variant profile in DNA damage response genes correlates with metastatic breast cancer progression-free survival in a Mexican-mestizo population. Front Oncol 2023; 13:1146008. [PMID: 37182128 PMCID: PMC10174330 DOI: 10.3389/fonc.2023.1146008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 04/14/2023] [Indexed: 05/16/2023] Open
Abstract
Introduction Metastatic breast cancer causes the most breast cancer-related deaths around the world, especially in countries where breast cancer is detected late into its development. Genetic testing for cancer susceptibility started with the BRCA 1 and 2 genes. Still, recent research has shown that variations in other members of the DNA damage response (DDR) are also associated with elevated cancer risk, opening new opportunities for enhanced genetic testing strategies. Methods We sequenced BRCA1/2 and twelve other DDR genes from a Mexican-mestizo population of 40 metastatic breast cancer patients through semiconductor sequencing. Results Overall, we found 22 variants -9 of them reported for the first time- and a strikingly high proportion of variations in ARID1A. The presence of at least one variant in the ARID1A, BRCA1, BRCA2, or FANCA genes was associated with worse progression-free survival and overall survival in our patient cohort. Discussion Our results reflected the unique characteristics of the Mexican-mestizo population as the proportion of variants we found differed from that of other global populations. Based on these findings, we suggest routine screening for variants in ARID1A along with BRCA1/2 in breast cancer patients from the Mexican-mestizo population.
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Affiliation(s)
- Rafael Vázquez-Romo
- Departamento de Cirugía de Tumores Mamarios, Instituto Nacional de Cancerología (INCan), Ciudad de México, Mexico
| | - Oliver Millan-Catalan
- Laboratorio de Genómica, Instituto Nacional de Cancerología (INCan), Ciudad de México, Mexico
| | - Erika Ruíz-García
- Laboratorio de Medicina Traslacional y Departamento de Tumores Gastrointestinales, Instituto Nacional de Cancerología, CDMX, Mexico
| | | | - Alberto Alvarado-Miranda
- Departamento de Cirugía de Tumores Mamarios, Instituto Nacional de Cancerología (INCan), Ciudad de México, Mexico
| | - Alma D. Campos-Parra
- Dirección de Investigación, Instituto Nacional de Cancerología (INCan), Ciudad de México, Mexico
| | - César López-Camarillo
- Posgrado en Ciencias Genómicas, Universidad Autónoma de la Ciudad de México, Ciudad de México, Mexico
| | - Nadia Jacobo-Herrera
- Unidad de Bioquímica, Instituto Nacional de Ciencias Médicas y Nutrición, Salvador Zubirán (INCMNSZ), Ciudad de México, Mexico
| | - Eduardo López-Urrutia
- Laboratorio de Genómica, Unidad de Biomedicina, FES-IZTACALA, UNAM, Tlalnepantla, Mexico
| | - Mariano Guardado-Estrada
- Laboratorio de Genética, Ciencia Forense, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - David Cantú de León
- Dirección de Investigación, Instituto Nacional de Cancerología (INCan), Ciudad de México, Mexico
- *Correspondence: David Cantú de León, ; Carlos Pérez-Plasencia,
| | - Carlos Pérez-Plasencia
- Laboratorio de Genómica, Instituto Nacional de Cancerología (INCan), Ciudad de México, Mexico
- Laboratorio de Genómica, Unidad de Biomedicina, FES-IZTACALA, UNAM, Tlalnepantla, Mexico
- *Correspondence: David Cantú de León, ; Carlos Pérez-Plasencia,
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Bang YJ, Kwon WK, Kim JW, Lee JE, Jung BY, Kim M, Kim J, An J, Jung SP, Kim HK, Kim Z, Youn HJ, Ryu JM, Kim SW. Comprehensive clinical characterization of patients with BRCA1: c.5017_5019del germline variant. Ann Surg Treat Res 2022; 103:323-330. [PMID: 36601340 PMCID: PMC9763777 DOI: 10.4174/astr.2022.103.6.323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 09/18/2022] [Accepted: 10/11/2022] [Indexed: 12/15/2022] Open
Abstract
Purpose We provide evidence for the reclassification of the BRCA1:c.5017_5019del variant by presenting the clinicopathological characteristics, clinical outcomes, and family history of breast or ovarian cancer in 17 patients with this variant. Methods This study included breast or ovarian cancer patients tested for BRCA1/2 genes between January 2008 and June 2020 at 10 medical centers in Korea. We retrospectively reviewed 17 probands from 15 families who had the BRCA1:c.5017_5019del variant according to the electronic medical records. Results We present 10 breast cancer patients and 7 ovarian cancer patients from 15 families identified as having BRCA1:c.5017_5019del and a total of 19 cases of breast cancer and 14 cases of ovarian cancer in these families. The ratio of breast-to-ovarian cancer was 1.3:1. Breast cancer patients with this variant showed a rich family history of breast or ovarian cancer, 8 patients (80.0%). The mean age at diagnosis was 45.4 years and 6 patients (60.0%) were categorized into hormone-receptor-negative breast cancer. Also, the ovarian cancer patients with this variant showed strong family histories of breast and/or ovarian cancer in 4 patients (57.1%). Conclusion We presented clinical evidence for the reclassification of BRCA1:c.5017_5019del as a likely pathogenic variant (LPV). Reclassification as LPV could result in the prophylactic treatment and medical surveillance of probands, family testing recommendations, and appropriate genetic counseling of their families.
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Affiliation(s)
- Yoon Ju Bang
- Department of Surgery, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon, Korea
| | - Won Kyung Kwon
- Department of Laboratory and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jong-Won Kim
- Department of Laboratory and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jeong Eon Lee
- Division of Breast Surgery, Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Boo Yeon Jung
- Breast Cancer Center, Samsung Medical Center, Seoul, Korea
| | - Mina Kim
- Breast Cancer Center, Samsung Medical Center, Seoul, Korea
| | - Jisun Kim
- Division of Breast Surgery, Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jeongshin An
- Institute of Convergence Medicine Research, Ewha Womans University Mokdong Hospital, Ewha Womans University School of Medicine, Seoul, Korea
| | - Seung Pil Jung
- Division of Breast and Endocrine Surgery, Department of Surgery, Korea University Anam Hospital, Korea University College of Medicine, Seoul, Korea
| | - Hong-Kyu Kim
- Department of Surgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Zisun Kim
- Department of Surgery, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
| | - Hyun Jo Youn
- Department of Surgery, Jeonbuk National University Hospital, Jeonbuk National University Medical School, Jeonju, Korea
| | - Jai Min Ryu
- Division of Breast Surgery, Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Sung-Won Kim
- Department of Surgery, Breast Care Center, Daerim St. Mary’s Hospital, Seoul, Korea
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Familial history and prevalence of BRCA1, BRCA2 and TP53 pathogenic variants in HBOC Brazilian patients from a public healthcare service. Sci Rep 2022; 12:18629. [PMID: 36329109 PMCID: PMC9633799 DOI: 10.1038/s41598-022-23012-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 10/21/2022] [Indexed: 11/06/2022] Open
Abstract
Several studies have demonstrated the cost-effectiveness of genetic testing for surveillance and treatment of carriers of germline pathogenic variants associated with hereditary breast/ovarian cancer syndrome (HBOC). In Brazil, seventy percent of the population is assisted by the public Unified Health System (SUS), where genetic testing is still unavailable. And few studies were performed regarding the prevalence of HBOC pathogenic variants in this context. Here, we estimated the prevalence of germline pathogenic variants in BRCA1, BRCA2 and TP53 genes in Brazilian patients suspected of HBOC and referred to public healthcare service. Predictive power of risk prediction models for detecting mutation carriers was also evaluated. We found that 41 out of 257 tested patients (15.9%) were carriers of pathogenic variants in the analyzed genes. Most frequent pathogenic variant was the founder Brazilian mutation TP53 c.1010G > A (p.Arg337His), adding to the accumulated evidence that supports inclusion of TP53 in routine testing of Brazilian HBOC patients. Surprisingly, BRCA1 c.5266dupC (p.Gln1756fs), a frequently reported pathogenic variant in Brazilian HBOC patients, was not observed. Regarding the use of predictive models, we found that familial history of cancer might be used to improve selection or prioritization of patients for genetic testing, especially in a context of limited resources.
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Agaoglu NB, Ng OH, Unal B, Dogan OA, Amanvermez U, Yildiz J, Doganay L, Ghazani AA, Rana HQ. Concurrent Pathogenic Variants of BRCA1, MUTYH and CHEK2 in a Hereditary Cancer Family. Cancer Genet 2022; 268-269:128-136. [PMID: 36368126 DOI: 10.1016/j.cancergen.2022.10.144] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 09/04/2022] [Accepted: 10/30/2022] [Indexed: 11/07/2022]
Abstract
Concurrent pathogenic variants (PVs) in cancer predisposition genes have been reported in 0.1-2% of hereditary cancer (HC) patients. Determining concurrent PVs is crucial for the diagnosis, treatment, and risk assessment of unaffected family members. Next generation sequencing based diagnostic tests, which are widely used in HCs, enable the evaluation of multiple genes in parallel. We have screened the family members of a patient with bilateral breast cancer who was found to have concurrent PVs in BRCA1 (NM_007294.3;c.5102_5103del, p.Leu1701Glnfs*14) and MUTYH (NM_001128425.1;c.884C>T, p.Pro295Leu). Further analysis revealed concurrent PVs in CHEK2 (NM_007194.4;c.1427C>T, p.Thr476Met) and MUTYH (NM_001128425.1;c.884C>T, p.Pro295Leu) in the maternal uncle of the index case. Eight additional family members were found to have PVs in BRCA1 and MUTYH among 26 tested relatives. The sister and the brother of the index case who were diagnosed with breast and colon cancers, respectively, presented with the same genotype as the index case. Each family member was evaluated individually for clinical care and surveillance. This is the first report describing a family with BRCA1, MUTYH and CHEK2 concurrent PVs. Our findings provide valuable information for the assessment and management considerations for families with concurrent PVs.
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Affiliation(s)
- Nihat Bugra Agaoglu
- Department of Medical Genetics, Division of Cancer Genetics, Umraniye Training and Research Hospital, Istanbul, Turkey; Division of Cancer Genetics and Prevention, Dana-Farber Cancer Institute, Boston, MA, United States
| | - Ozden Hatirnaz Ng
- Department of Medical Biology, School of Medicine, Acibadem Mehmet Ali Aydinlar University, Istanbul, Turkey; Department of Medical Genetics, School of Medicine, Acibadem Mehmet Ali Aydinlar University, Istanbul, Turkey; Acibadem University Rare Diseases and Orphan Drugs Application and Research Center, Istanbul, Turkey
| | - Busra Unal
- Department of Medical Genetics, Division of Cancer Genetics, Umraniye Training and Research Hospital, Istanbul, Turkey
| | - Ozlem Akgun Dogan
- Department of Medical Genetics, School of Medicine, Acibadem Mehmet Ali Aydinlar University, Istanbul, Turkey; Department of Pediatrics, School of Medicine, Acibadem Mehmet Ali Aydinlar University, Istanbul, Turkey
| | - Ufuk Amanvermez
- Department of Genome Studies, Institute of Health Sciences, Acibadem Mehmet Ali Aydinlar University, Istanbul, Turkey
| | - Jale Yildiz
- Department of Medical Genetics, Division of Cancer Genetics, Umraniye Training and Research Hospital, Istanbul, Turkey
| | - Levent Doganay
- Department of Gastroenterology and Hepatology, Umraniye Training and Research Hospital, Umraniye, Istanbul, Turkey
| | - Arezou A Ghazani
- Department of Medicine, Division of Genetics, Brigham and Women's Hospital, Boston, MA, United States; Department of Pathology, Brigham and Women's Hospital, Boston, MA, United States; Harvard Medical School, Boston, MA, United States.
| | - Huma Q Rana
- Division of Cancer Genetics and Prevention, Dana-Farber Cancer Institute, Boston, MA, United States; Harvard Medical School, Boston, MA, United States; Department of Medical Oncology, Dana-Farber Cancer Institute, 450 Brookline Ave, Boston, MA 02215, United States.
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