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Niccum BA, Coughlin S, Clay D, Heiman J, Buckley KH, Dungan M, Daniel MG, Ruiz J, Maxwell KN, Domchek SM, Leung G, Ahmad NA, Ginsberg GG, Kochman ML, Katona BW. Prevalence of H. pylori and Gastric Intestinal Metaplasia in BRCA1 and BRCA2 Carriers. Cancer Prev Res (Phila) 2024; 17:305-309. [PMID: 38641403 DOI: 10.1158/1940-6207.capr-24-0039] [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: 01/25/2024] [Revised: 04/01/2024] [Accepted: 04/15/2024] [Indexed: 04/21/2024]
Abstract
BRCA1 and BRCA2 carriers may be at increased risk for gastric cancer; however, the mechanisms of gastric carcinogenesis remain poorly understood. We sought to determine the prevalence of gastric cancer risk factors Helicobacter pylori (H. pylori) infection and gastric intestinal metaplasia (GIM) among BRCA1/2 carriers to gain insight into the pathogenesis of gastric cancer in this population. A total of 100 unselected BRCA1/2 carriers who underwent endoscopic ultrasound from March 2022 to March 2023 underwent concomitant upper endoscopy with nontargeted gastric antrum and body biopsies. The study population (70% women; mean age 60.1 years) included 66% BRCA2 carriers. H. pylori was detected in one (1%) individual, 7 (7%) had GIM, 2 (2%) had autoimmune atrophic gastritis, and no gastric cancers were diagnosed. Among BRCA1/2 carriers, H. pylori prevalence was low and GIM prevalence was similar to that in the general population; however, identification of H. pylori or GIM may help inform future gastric cancer risk management strategies in BRCA1/2 carriers. Prevention Relevance: Evaluating the burden of H. pylori infection and GIM among BRCA1/2 carriers is warranted to better understand the mechanisms of gastric carcinogenesis and to help inform risk management strategies for gastric cancer among this at-risk population.
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Affiliation(s)
- Blake A Niccum
- Division of Gastroenterology and Hepatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Sarah Coughlin
- Division of Gastroenterology and Hepatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Daniel Clay
- Division of Gastroenterology and Hepatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Jordan Heiman
- Division of Gastroenterology and Hepatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Kole H Buckley
- Division of Gastroenterology and Hepatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Michaela Dungan
- Division of Gastroenterology and Hepatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Michael G Daniel
- Division of Gastroenterology and Hepatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Jose Ruiz
- Division of Gastroenterology and Hepatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Kara N Maxwell
- Division of Hematology and Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Susan M Domchek
- Division of Hematology and Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Galen Leung
- Division of Gastroenterology and Hepatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Nuzhat A Ahmad
- Division of Gastroenterology and Hepatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Gregory G Ginsberg
- Division of Gastroenterology and Hepatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Michael L Kochman
- Division of Gastroenterology and Hepatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Bryson W Katona
- Division of Gastroenterology and Hepatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
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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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Xiao Q, Mao X, Ploner A, Grassmann F, Rodriguez J, Eriksson M, Hall P, Czene K. Cancer risks among first-degree relatives of women with a genetic predisposition to breast cancer. J Natl Cancer Inst 2024; 116:911-919. [PMID: 38366028 PMCID: PMC11160497 DOI: 10.1093/jnci/djae030] [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: 09/07/2023] [Revised: 01/23/2024] [Accepted: 02/05/2024] [Indexed: 02/18/2024] Open
Abstract
BACKGROUND Associations between germline alterations in women and cancer risks among their relatives are largely unknown. METHODS We identified women from 2 Swedish cohorts Karolinska Mammography Project for Risk Prediction of Breast Cancer (KARMA) and prevalent KARMA (pKARMA), including 28 362 women with genotyping data and 13 226 with sequencing data. Using Swedish Multi-Generation Register, we linked these women to 133 389 first-degree relatives. Associations between protein-truncating variants in 8 risk genes and breast cancer polygenic risk score in index women and cancer risks among their relatives were modeled via Cox regression. RESULTS Female relatives of index women who were protein-truncating variant carriers in any of the 8 risk genes had an increased breast cancer risk compared with those of noncarriers (hazard ratio [HR] = 1.85, 95% confidence interval [CI] = 1.52 to 2.27), with the strongest association found for protein-truncating variants in BRCA1 and 2. These relatives had a statistically higher risk of early onset than late-onset breast cancer (P = .001). Elevated breast cancer risk was also observed in female relatives of index women with higher polygenic risk score (HR per SD = 1.28, 95% CI = 1.23 to 1.32). The estimated lifetime risk was 22.3% for female relatives of protein-truncating variant carriers and 14.4% for those related to women in the top polygenic risk score quartile. Moreover, relatives of index women with protein-truncating variant presence (HR = 1.30, 95% CI = 1.06 to 1.59) or higher polygenic risk score (HR per SD = 1.04, 95% CI = 1.01 to 1.07) were also at higher risk of nonbreast hereditary breast and ovary cancer syndrome-related cancers. CONCLUSIONS Protein-truncating variants of risk genes and higher polygenic risk score in index women are associated with an increased risk of breast and other hereditary breast and ovary syndrome-related cancers among relatives.
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Affiliation(s)
- Qingyang Xiao
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Xinhe Mao
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Alexander Ploner
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Felix Grassmann
- Institute for Clinical Research and Systems Medicine, Health and Medical University, Potsdam, Germany
| | - Juan Rodriguez
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Mikael Eriksson
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Per Hall
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
- Department of Oncology, Södersjukhuset, Stockholm, Sweden
| | - Kamila Czene
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
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Tostrud LJ, Somasegar S, Renz M. Site-agnostic PARP-inhibitor maintenance therapy of advanced stage BRCA2-mutated gastric-type endocervical adenocarcinoma: A case report. Gynecol Oncol Rep 2024; 53:101406. [PMID: 38736717 PMCID: PMC11088272 DOI: 10.1016/j.gore.2024.101406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Revised: 04/29/2024] [Accepted: 04/30/2024] [Indexed: 05/14/2024] Open
Abstract
•Gastric-type endocervical adenocarcinomas (GEA) are rare, aggressive cancers with limited therapeutic options. •Although therapeutic effects of PARP-inhibitors in non-BRCA-associated cancers might be limited, clinical data is sparse. •Given limited treatment options and poor prognosis of GEA, somatic BRCA mutation testing, and PARP-inhibitor maintenance can be considered.
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Affiliation(s)
- Lauren Jill Tostrud
- Department of Obstetrics & Gynecology, Stanford University School of Medicine, Palo Alto, CA, United States
| | - Sahana Somasegar
- Gynecologic Oncology Division, Stanford University School of Medicine, Palo Alto, CA, United States
| | - Malte Renz
- Stanford University, Stanford, CA, United States
- Department of Obstetrics & Gynecology, Heinrich-Heine University Düsseldorf, Germany
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Akinjiyan FA, Morecroft R, Phillipps J, Adeyelu T, Elliott A, Park SJ, Butt OH, Zhou AY, Ansstas G. Homologous Recombination Deficiency (HRD) in Cutaneous Oncology. Int J Mol Sci 2023; 24:10771. [PMID: 37445949 DOI: 10.3390/ijms241310771] [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: 06/01/2023] [Revised: 06/21/2023] [Accepted: 06/22/2023] [Indexed: 07/15/2023] Open
Abstract
Skin cancers, including basal cell carcinoma (BCC), cutaneous squamous cell carcinoma (SCC), and melanoma, are the most common malignancies in the United States. Loss of DNA repair pathways in the skin plays a significant role in tumorigenesis. In recent years, targeting DNA repair pathways, particularly homologous recombination deficiency (HRD), has emerged as a potential therapeutic approach in cutaneous malignancies. This review provides an overview of DNA damage and repair pathways, with a focus on HRD, and discusses major advances in targeting these pathways in skin cancers. Poly(ADP-ribose) polymerase (PARP) inhibitors have been developed to exploit HRD in cancer cells. PARP inhibitors disrupt DNA repair mechanisms by inhibiting PARP enzymatic activity, leading to the accumulation of DNA damage and cell death. The concept of synthetic lethality has been demonstrated in HR-deficient cells, such as those with BRCA1/2 mutations, which exhibit increased sensitivity to PARP inhibitors. HRD assessment methods, including genomic scars, RAD51 foci formation, functional assays, and BRCA1/2 mutation analysis, are discussed as tools for identifying patients who may benefit from PARP inhibitor therapy. Furthermore, HRD has been implicated in the response to immunotherapy, and the combination of PARP inhibitors with immunotherapy has shown promising results. The frequency of HRD in melanoma ranges from 18% to 57%, and studies investigating the use of PARP inhibitors as monotherapy in melanoma are limited. Further research is warranted to explore the potential of PARP inhibition in melanoma treatment.
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Affiliation(s)
- Favour A Akinjiyan
- Division of Medical Oncology, Department of Medicine, Washington University in Saint Louis, St. Louis, MO 63130, USA
| | - Renee Morecroft
- Division of Medical Oncology, Department of Medicine, Washington University in Saint Louis, St. Louis, MO 63130, USA
| | - Jordan Phillipps
- Division of Medical Oncology, Department of Medicine, Washington University in Saint Louis, St. Louis, MO 63130, USA
| | | | | | - Soo J Park
- Moores Cancer Center, University of California San Diego, La Jolla, CA 92093, USA
| | - Omar H Butt
- Division of Medical Oncology, Department of Medicine, Washington University in Saint Louis, St. Louis, MO 63130, USA
| | - Alice Y Zhou
- Division of Medical Oncology, Department of Medicine, Washington University in Saint Louis, St. Louis, MO 63130, USA
| | - George Ansstas
- Division of Medical Oncology, Department of Medicine, Washington University in Saint Louis, St. Louis, MO 63130, USA
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Keyvani V, Kheradmand N, Navaei ZN, Mollazadeh S, Esmaeili SA. Epidemiological trends and risk factors of gynecological cancers: an update. Med Oncol 2023; 40:93. [PMID: 36757546 DOI: 10.1007/s12032-023-01957-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 01/12/2023] [Indexed: 02/10/2023]
Abstract
Gynecological cancers, the most common cancer among women worldwide, disrupt the function of women's reproductive system, significantly impacting the quality of life. The epidemiological patterns of gynecological cancers differ in various regions and alter over time. The main challenge to deal with women's cancers is focusing on potential plans to improve patient outcomes. The epidemiology and general risk elements of gynecological cancers are important in the management of these cancers, so all of the reported risk factors in gynecological cancers have been evaluated in the present review. Due to the role of gynecological cancers in women's health, preventive measures and modifiable lifestyles together with early detection in high-risk groups are effective strategies that can reduce mortality rates. This review summarizes the epidemiology and global risk factors of gynecological cancers alongside others to better management of these malignancies and improve the quality of life in the affected patients.
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Affiliation(s)
- Vahideh Keyvani
- Department of Biology, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran.,Medical Genetics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Nahid Kheradmand
- Department of Medical Genetics and Molecular Medicine, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Zahra Nasrpour Navaei
- Department of Medical Genetics and Molecular Medicine, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Samaneh Mollazadeh
- Natural Products and Medicinal Plants Research Center, North Khorasan University of Medical Sciences, Bojnurd, Iran
| | - Seyed-Alireza Esmaeili
- Immunology Research Center, Bu-Ali Research Institute, Mashhad University of Medical Sciences, Mashhad, Iran. .,Immunology Department, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
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Gastric Cancer Risk and Pathogenesis in BRCA1 and BRCA2 Carriers. Cancers (Basel) 2022; 14:cancers14235953. [PMID: 36497436 PMCID: PMC9736932 DOI: 10.3390/cancers14235953] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 11/29/2022] [Accepted: 11/30/2022] [Indexed: 12/03/2022] Open
Abstract
Carriers of a pathogenic germline variant (PV) in BRCA1 or BRCA2 are at increased risk for a number of malignancies, including breast, ovarian, pancreatic, and prostate cancer. In this review, we discuss emerging evidence that BRCA2 PV carriers, and likely also BRCA1 PV carriers, are also at increased risk for gastric cancer (GC), highlighting that GC may be part of the BRCA1/2 cancer risk spectrum. While the pathogenesis of GC among BRCA1/2 PV carriers remains unclear, increasing evidence reveals that GCs are often enriched with mutations in homologous recombination-associated genes such as BRCA1/2, and that GC prognosis and response to certain therapies can depend on BRCA1/2 expression. Given the strength of data published to date, a risk management strategy for GC among BRCA1/2 PV carriers is needed, and herein we also propose a potential strategy for GC risk management in this population. Moving forward, further study is clearly warranted to define the mechanistic relationship between BRCA1/2 PVs and development of GC as well as to determine how GC risk management should be factored into the clinical care of BRCA1/2 carriers.
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Minoura Y, Takahashi M, Maeda H, Kuwahara S, Tachikawa H, Yamamoto M, Tomioka N, Watanabe K, Sakurai A. Significance of prostate/pancreatic/skin cancer family history for detecting BRCA2 pathogenic variant careers among patients with breast cancer. Breast Cancer 2022; 29:808-813. [PMID: 35641852 DOI: 10.1007/s12282-022-01360-2] [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: 12/09/2021] [Accepted: 04/07/2022] [Indexed: 11/02/2022]
Abstract
BACKGROUND When considering BRCA1/2 genetic testing for diagnosis of hereditary breast and ovarian cancer (HBOC), family history (FH) of breast and ovarian cancer is commonly considered. However, FH of other HBOC-related cancers, such as prostate, pancreatic, and skin cancer (malignant melanoma), is often overlooked. METHODS Among 945 patients who received genetic testing of BRCA1/2 at our hospital between October 2010 and September 2021, we compared the FH of 123 patients diagnosed with HBOC and 669 other patients who had breast cancer and had a documented FH. This study focused on the FH of HBOC-related cancers such as breast, ovarian, prostate, pancreatic, and skin cancer, as well as colorectal, gastric, liver, lung, and uterine cancers, which are common among Japanese, and other cancers. RESULTS FH of prostate, pancreatic, and skin cancer was significantly higher in the BRCA2 pathogenic variant (PV) cases than in the wild-type (WT) cases. The mean number of family members are as follows: BRCA1 PV/ BRCA2 PV/ WT; prostate cancer: 0.05/ 0.34/ 0.09 (P < 0.0001, Kruskal-Wallis multiple comparisons test), pancreatic cancer: 0.13/ 0.21/ 0.10 (P = 0.01637), and skin cancer: 0.03/ 0.07/ 0.01 (P = 0.00129), respectively. CONCLUSIONS When considering BRCA1/2 genetic testing, FH of prostate, pancreatic, and skin cancers may also be examined as HBOC-related cancers to provide testing for patients who would benefit from it. However, further studies for the association between skin cancer and HBOC will be required because it has not been reported in Japan.
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Affiliation(s)
- Yuko Minoura
- Genome Medical Center, National Hospital Organization Hokkaido Cancer Center, 2-3-54, Kikusui 4, Shiroishi-ku, Sapporo, 003-0804, Japan
- Department of Medical Genetics and Genomics, Sapporo Medical University School of Medicine, S1 W17, Chuo-ku, Sapporo, 060-8556, Japan
| | - Masato Takahashi
- Genome Medical Center, National Hospital Organization Hokkaido Cancer Center, 2-3-54, Kikusui 4, Shiroishi-ku, Sapporo, 003-0804, Japan.
- Department of Breast Surgery, National Hospital Organization Hokkaido Cancer Center, 2-3-54, Kikusui 4, Shiroishi-ku, Sapporo, 003-0804, Japan.
| | - Hideki Maeda
- Department of Breast Surgery, National Hospital Organization Hokkaido Cancer Center, 2-3-54, Kikusui 4, Shiroishi-ku, Sapporo, 003-0804, Japan
| | - Sayuri Kuwahara
- Department of Breast Surgery, National Hospital Organization Hokkaido Cancer Center, 2-3-54, Kikusui 4, Shiroishi-ku, Sapporo, 003-0804, Japan
| | - Hanae Tachikawa
- Department of Breast Surgery, National Hospital Organization Hokkaido Cancer Center, 2-3-54, Kikusui 4, Shiroishi-ku, Sapporo, 003-0804, Japan
| | - Mitsugu Yamamoto
- Department of Breast Surgery, National Hospital Organization Hokkaido Cancer Center, 2-3-54, Kikusui 4, Shiroishi-ku, Sapporo, 003-0804, Japan
| | - Nobumoto Tomioka
- Department of Breast Surgery, National Hospital Organization Hokkaido Cancer Center, 2-3-54, Kikusui 4, Shiroishi-ku, Sapporo, 003-0804, Japan
| | - Kenichi Watanabe
- Department of Breast Surgery, National Hospital Organization Hokkaido Cancer Center, 2-3-54, Kikusui 4, Shiroishi-ku, Sapporo, 003-0804, Japan
| | - Akihiro Sakurai
- Department of Medical Genetics and Genomics, Sapporo Medical University School of Medicine, S1 W17, Chuo-ku, Sapporo, 060-8556, Japan
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Mokoatle M, Mapiye D, Marivate V, Hayes VM, Bornman R. Discriminatory Gleason grade group signatures of prostate cancer: An application of machine learning methods. PLoS One 2022; 17:e0267714. [PMID: 35679280 PMCID: PMC9182297 DOI: 10.1371/journal.pone.0267714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 04/13/2022] [Indexed: 12/03/2022] Open
Abstract
One of the most precise methods to detect prostate cancer is by evaluation of a stained biopsy by a pathologist under a microscope. Regions of the tissue are assessed and graded according to the observed histological pattern. However, this is not only laborious, but also relies on the experience of the pathologist and tends to suffer from the lack of reproducibility of biopsy outcomes across pathologists. As a result, computational approaches are being sought and machine learning has been gaining momentum in the prediction of the Gleason grade group. To date, machine learning literature has addressed this problem by using features from magnetic resonance imaging images, whole slide images, tissue microarrays, gene expression data, and clinical features. However, there is a gap with regards to predicting the Gleason grade group using DNA sequences as the only input source to the machine learning models. In this work, using whole genome sequence data from South African prostate cancer patients, an application of machine learning and biological experiments were combined to understand the challenges that are associated with the prediction of the Gleason grade group. A series of machine learning binary classifiers (XGBoost, LSTM, GRU, LR, RF) were created only relying on DNA sequences input features. All the models were not able to adequately discriminate between the DNA sequences of the studied Gleason grade groups (Gleason grade group 1 and 5). However, the models were further evaluated in the prediction of tumor DNA sequences from matched-normal DNA sequences, given DNA sequences as the only input source. In this new problem, the models performed acceptably better than before with the XGBoost model achieving the highest accuracy of 74 ± 01, F1 score of 79 ± 01, recall of 99 ± 0.0, and precision of 66 ± 0.1.
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Affiliation(s)
- Mpho Mokoatle
- Department of Computer Science, University of Pretoria, Pretoria, South Africa
- * E-mail:
| | | | - Vukosi Marivate
- Department of Computer Science, University of Pretoria, Pretoria, South Africa
- School of Medical Sciences, The University of Sydney, Sydney, Australia
| | - Vanessa M. Hayes
- School of Medical Sciences, The University of Sydney, Sydney, Australia
- School of Health Systems and Public Health, University of Pretoria, Pretoria, South Africa
| | - Riana Bornman
- School of Health Systems and Public Health, University of Pretoria, Pretoria, South Africa
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Momozawa Y, Sasai R, Usui Y, Shiraishi K, Iwasaki Y, Taniyama Y, Parsons MT, Mizukami K, Sekine Y, Hirata M, Kamatani Y, Endo M, Inai C, Takata S, Ito H, Kohno T, Matsuda K, Nakamura S, Sugano K, Yoshida T, Nakagawa H, Matsuo K, Murakami Y, Spurdle AB, Kubo M. Expansion of Cancer Risk Profile for BRCA1 and BRCA2 Pathogenic Variants. JAMA Oncol 2022; 8:871-878. [PMID: 35420638 PMCID: PMC9011177 DOI: 10.1001/jamaoncol.2022.0476] [Citation(s) in RCA: 67] [Impact Index Per Article: 33.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Importance The clinical importance of genetic testing of BRCA1 and BRCA2 in breast, ovarian, prostate, and pancreatic cancers is widely recognized. However, there is insufficient evidence to include other cancer types that are potentially associated with BRCA1 and BRCA2 in clinical management guidelines. Objective To evaluate the association of BRCA1 and BRCA2 pathogenic variants with additional cancer types and their clinical characteristics in 100 914 individuals across 14 cancer types. Design, Setting, and Participants This case-control analysis to identify cancer types and clinical characteristics associated with pathogenic variants in BRCA1 and BRCA2 included DNA samples and clinical information from 63 828 patients with 14 common cancer types and 37 086 controls that were sourced from a multi-institutional hospital-based registry, BioBank Japan, between April 2003 and March 2018. The data were analyzed between August 2019 and October 2021. Main Outcomes and Measures Germline pathogenic variants in coding regions and 2 bp flanking intronic sequences in BRCA1 and BRCA2 were identified by a multiplex polymerase chain reaction-based target sequence method. Associations of (likely) pathogenic variants with each cancer type were assessed by comparing pathogenic variant carrier frequency between patients in each cancer type and controls. Results A total of 65 108 patients (mean [SD] age at diagnosis, 64.1 [11.6] years; 27 531 [42.3%] female) and 38 153 controls (mean [SD] age at registration, 61.8 [14.6] years; 17 911 [46.9%] female) were included in this study. A total of 315 unique pathogenic variants were identified. Pathogenic variants were associated with P < 1 × 10-4 with an odds ratio (OR) of greater than 4.0 in biliary tract cancer (OR, 17.4; 95% CI, 5.8-51.9) in BRCA1, esophageal cancer (OR, 5.6; 95% CI, 2.9-11.0) in BRCA2, and gastric cancer (OR, 5.2; 95% CI, 2.6-10.5) in BRCA1, and (OR, 4.7; 95% CI, 3.1-7.1) in BRCA2 in addition to the 4 established cancer types. We also observed an association with 2 and 4 other cancer types in BRCA1 and BRCA2, respectively. Biliary tract, female breast, ovarian, and prostate cancers showed enrichment of carrier patients according to the increased number of reported cancer types in relatives. Conclusions and Relevance The results of this large-scale registry-based case-control study suggest that pathogenic variants in BRCA1 and BRCA2 were associated with the risk of 7 cancer types. These results indicate broader clinical relevance of BRCA1 and BRCA2 genetic testing.
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Affiliation(s)
- Yukihide Momozawa
- Laboratory for Genotyping Development, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Rumi Sasai
- Laboratory for Genotyping Development, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Yoshiaki Usui
- Laboratory for Genotyping Development, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan.,Division of Cancer Information and Control, Department of Preventive Medicine, Aichi Cancer Center, Nagoya, Japan.,Department of Hematology, Oncology and Respiratory Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceuticals Sciences, Okayama, Japan
| | - Kouya Shiraishi
- Division of Genome Biology, National Cancer Center Research Institute, Tokyo, Japan
| | - Yusuke Iwasaki
- Laboratory for Genotyping Development, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Yukari Taniyama
- Division of Cancer Information and Control, Department of Preventive Medicine, Aichi Cancer Center, Nagoya, Japan
| | - Michael T Parsons
- Division of Genetics and Population Health, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - Keijiro Mizukami
- Laboratory for Genotyping Development, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Yuya Sekine
- Laboratory for Genotyping Development, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan.,Department of Urology, Akita University Graduate School of Medicine, Akita, Japan
| | - Makoto Hirata
- Department of Genetic Medicine and Services, National Cancer Center Hospital, Tokyo, Japan.,Institute of Medical Science, Division of Molecular Pathology, Department of Cancer Biology, The University of Tokyo, Tokyo, Japan
| | - Yoichiro Kamatani
- Laboratory of Complex Trait Genomics, Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Tokyo, Japan
| | - Mikiko Endo
- Laboratory for Genotyping Development, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Chihiro Inai
- Laboratory for Genotyping Development, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Sadaaki Takata
- Laboratory for Genotyping Development, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Hidemi Ito
- Division of Cancer Information and Control, Department of Preventive Medicine, Aichi Cancer Center, Nagoya, Japan.,Division of Descriptive Cancer Epidemiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Takashi Kohno
- Division of Genome Biology, National Cancer Center Research Institute, Tokyo, Japan
| | - Koichi Matsuda
- Laboratory of Clinical Genome Sequencing, Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Tokyo, Japan
| | - Seigo Nakamura
- Division of Breast Surgical Oncology, Department of Surgery, Showa University School of Medicine, Tokyo, Japan
| | - Kokichi Sugano
- Department of Genetic Medicine and Services, National Cancer Center Hospital, Tokyo, Japan.,Department of Genetic Medicine, Kyoundo Hospital, Sasaki Foundation, Tokyo, Japan
| | - Teruhiko Yoshida
- Department of Genetic Medicine and Services, National Cancer Center Hospital, Tokyo, Japan
| | - Hidewaki Nakagawa
- Laboratory for Cancer Genomics, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Keitaro Matsuo
- Division of Cancer Epidemiology and Prevention, Department of Preventive Medicine, Aichi Cancer Center, Nagoya, Japan.,Division of Cancer Epidemiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yoshinori Murakami
- Institute of Medical Science, Division of Molecular Pathology, Department of Cancer Biology, The University of Tokyo, Tokyo, Japan
| | - Amanda B Spurdle
- Division of Genetics and Population Health, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - Michiaki Kubo
- RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
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11
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Domogauer J, Cantor T, Quinn G, Stasenko M. Disparities in cancer screenings for sexual and gender minorities. Curr Probl Cancer 2022; 46:100858. [DOI: 10.1016/j.currproblcancer.2022.100858] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 03/04/2022] [Indexed: 12/22/2022]
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12
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Garcia-Pelaez J, Barbosa-Matos R, São José C, Sousa S, Gullo I, Hoogerbrugge N, Carneiro F, Oliveira C. Gastric cancer genetic predisposition and clinical presentations: Established heritable causes and potential candidate genes. Eur J Med Genet 2021; 65:104401. [PMID: 34871783 DOI: 10.1016/j.ejmg.2021.104401] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 11/10/2021] [Accepted: 11/28/2021] [Indexed: 12/12/2022]
Abstract
Tumour risk syndromes (TRS) are characterized by an increased risk of early-onset cancers in a familial context. High cancer risk is mostly driven by loss-of-function variants in a single cancer-associated gene. Presently, predisposition to diffuse gastric cancer (DGC) is explained by CDH1 and CTNNA1 pathogenic and likely pathogenic variants (P/LP), causing Hereditary Diffuse Gastric Cancer (HDGC); while APC promoter 1B single nucleotide variants predispose to Gastric Adenocarcinoma and Proximal Polyposis of the Stomach (GAPPS). Familial Intestinal Gastric Cancer (FIGC), recognized as a GC-predisposing disease, remains understudied and genetically unsolved. GC can also occur in the spectrum of other TRS. Identification of heritable causes allows defining diagnostic testing criteria, helps to clinically classify GC families into the appropriate TRS, and allows performing pre-symptomatic testing identifying at-risk individuals for downstream surveillance, risk reduction and/or treatment. However, most of HDGC, some GAPPS, and most FIGC patients/families remain unsolved, expecting a heritable factor to be discovered. The missing heritability in GC-associated tumour risk syndromes (GC-TRS) is likely explained not by a single major gene, but by a diversity of genes, some, predisposing to other TRS. This would gain support if GC-enriched small families or apparently isolated early-onset GC cases were hiding a family history compatible with another TRS. Herein, we revisited current knowledge on GC-TRS, and searched in the literature for individuals/families bearing P/LP variants predisposing for other TRS, but whose probands display a clinical presentation and/or family history also fitting GC-TRS criteria. We found 27 families with family history compatible with HDGC or FIGC, harbouring 28 P/LP variants in 16 TRS-associated genes, mainly associated with DNA repair. PALB2 or BRCA2 were the most frequently mutated candidate genes in individuals with family history compatible with HDGC and FIGC, respectively. Consolidation of PALB2 and BRCA2 as HDGC- or FIGC-associated genes, respectively, holds promise and worth additional research. This analysis further highlighted the influence, that proband's choice and small or unreported family history have, for a correct TRS diagnosis, genetic screening, and disease management. In this review, we provide a rational for identification of particularly relevant candidate genes in GC-TRS.
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Affiliation(s)
- José Garcia-Pelaez
- i3S - Instituto de Investigação e Inovação em Saúde, Porto, Portugal; IPATIMUP - Instituto de Patologia e Imunologia Molecular da Universidade do Porto, Porto, Portugal; Doctoral Programme in Biomedicine, Faculty of Medicine, University of Porto, Porto, Portugal
| | - Rita Barbosa-Matos
- i3S - Instituto de Investigação e Inovação em Saúde, Porto, Portugal; IPATIMUP - Instituto de Patologia e Imunologia Molecular da Universidade do Porto, Porto, Portugal; International Doctoral Programme in Molecular and Cellular Biotechnology Applied to Health Sciences from Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal
| | - Celina São José
- i3S - Instituto de Investigação e Inovação em Saúde, Porto, Portugal; IPATIMUP - Instituto de Patologia e Imunologia Molecular da Universidade do Porto, Porto, Portugal; Doctoral Programme in Biomedicine, Faculty of Medicine, University of Porto, Porto, Portugal
| | - Sónia Sousa
- i3S - Instituto de Investigação e Inovação em Saúde, Porto, Portugal; IPATIMUP - Instituto de Patologia e Imunologia Molecular da Universidade do Porto, Porto, Portugal
| | - Irene Gullo
- i3S - Instituto de Investigação e Inovação em Saúde, Porto, Portugal; IPATIMUP - Instituto de Patologia e Imunologia Molecular da Universidade do Porto, Porto, Portugal; FMUP - Faculty of Medicine of the University of Porto, Porto, Portugal; Centro Hospitalar e Universitário S. João, Porto, Portugal
| | - Nicoline Hoogerbrugge
- Department of Human Genetics, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, Nijmegen, the Netherlands
| | - Fátima Carneiro
- i3S - Instituto de Investigação e Inovação em Saúde, Porto, Portugal; IPATIMUP - Instituto de Patologia e Imunologia Molecular da Universidade do Porto, Porto, Portugal; FMUP - Faculty of Medicine of the University of Porto, Porto, Portugal; Centro Hospitalar e Universitário S. João, Porto, Portugal
| | - Carla Oliveira
- i3S - Instituto de Investigação e Inovação em Saúde, Porto, Portugal; IPATIMUP - Instituto de Patologia e Imunologia Molecular da Universidade do Porto, Porto, Portugal; FMUP - Faculty of Medicine of the University of Porto, Porto, Portugal.
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13
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Ku GY, Kemel Y, Maron SB, Chou JF, Ravichandran V, Shameer Z, Maio A, Won ES, Kelsen DP, Ilson DH, Capanu M, Strong VE, Molena D, Sihag S, Jones DR, Coit DG, Tuvy Y, Cowie K, Solit DB, Schultz N, Hechtman JF, Offit K, Joseph V, Mandelker D, Janjigian YY, Stadler ZK. Prevalence of Germline Alterations on Targeted Tumor-Normal Sequencing of Esophagogastric Cancer. JAMA Netw Open 2021; 4:e2114753. [PMID: 34251444 PMCID: PMC8276088 DOI: 10.1001/jamanetworkopen.2021.14753] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 04/06/2021] [Indexed: 12/24/2022] Open
Abstract
Importance Among patients with esophagogastric cancers, only individuals who present with known features of heritable cancer syndromes are referred for genetic testing. Broader testing might identify additional patients with germline alterations. Objectives To examine the prevalence of likely pathogenic or pathogenic (LP/P) germline alterations among patients with esophagogastric cancer and to assess associations between germline variant prevalence and demographic and clinicopathologic features. Design, Setting, and Participants This cross-sectional study was performed at a tertiary referral cancer center from January 1, 2014, to December 31, 2019, in 515 patients with esophagogastric cancer who consented to tumor and blood sequencing. Main Outcomes and Measures Presence or absence of LP/P variants in up to 88 genes associated with cancer predisposition syndromes as identified by targeted sequencing (Memorial Sloan Kettering-Integrated Mutation Profiling of Actionable Cancer Targets). Results Among 515 patients (median age, 59 years; range, 18-87 years; 368 [71.5%] male; 398 [77.3%] White), 243 (47.2%) had gastric cancer, 111 (21.6%) had gastroesophageal junction (GEJ) cancer, and 161 (31.3%) had esophageal cancer. A total of 48 patients with gastric cancer (19.8%), 16 (14.4%) with GEJ cancer, and 17 (10.6%) with esophageal cancer had LP/P germline variants. The number of LP/P variants in high- and moderate-penetrance genes was significantly higher in patients with gastric cancer (29 [11.9%]; 95% CI, 8.1%-16.7%) vs patients with esophageal cancer (8 [5.0%]; 95% CI, 2.2%-9.6%; P = .03), and the difference was greater for high-penetrance germline alterations in patients with gastric cancer (25 [10.3%]; 95% CI, 6.8%-14.8%) vs in patients with esophageal cancer (3 [1.9%]; 95% CI, 0.38%-5.3%; P = .001). The most frequent high- and moderate-penetrance LP/P alterations were in BRCA1/2 (14 [2.7%]), ATM (11 [2.1%]), CDH1 (6 [1.2%]), and MSH2 (4 [0.8%]). Those with early-onset disease (≤50 years of age at diagnosis) were more likely to harbor an LP/P germline variant (29 [21.0%]; 95% CI, 14.5%-28.8%) vs those with late-onset disease (patients >50 years of age at diagnosis) (52 [13.8%]; 95% CI, 10.5%-17.7%; P = .046). ATM LP/P variants occurred in 6 patients (4.3%; 95% CI, 1.6%-9.1%) with early-onset esophagogastric cancer vs 5 (1.3%; 95% CI, 0.4%-3.1%; P = .08) of those with late-onset esophagogastric cancer. Conclusions and Relevance These results suggest that pathogenic germline variants are enriched in gastric and early-onset esophagogastric cancer and that germline testing should be considered in these populations. The role of ATM alterations in esophagogastric cancer risk warrants further investigation.
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Affiliation(s)
- Geoffrey Y. Ku
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
- Department of Medicine, Weill Cornell Medical College, New York, New York
| | - Yelena Kemel
- Niehaus Center for Inherited Cancer Genomics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Steve B. Maron
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
- Department of Medicine, Weill Cornell Medical College, New York, New York
| | - Joanne F. Chou
- Department of Epidemiology & Biostatistics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Vignesh Ravichandran
- Niehaus Center for Inherited Cancer Genomics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Zarina Shameer
- Niehaus Center for Inherited Cancer Genomics, Memorial Sloan Kettering Cancer Center, New York, New York
- Now with AstraZeneca, Gaithersburg, Maryland
| | - Anna Maio
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Elizabeth S. Won
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
- Department of Medicine, Weill Cornell Medical College, New York, New York
| | - David P. Kelsen
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
- Department of Medicine, Weill Cornell Medical College, New York, New York
| | - David H. Ilson
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
- Department of Medicine, Weill Cornell Medical College, New York, New York
| | - Marinela Capanu
- Department of Epidemiology & Biostatistics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Vivian E. Strong
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York
- Department of Surgery, Weill Cornell Medical College, New York, New York
| | - Daniela Molena
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York
- Department of Surgery, Weill Cornell Medical College, New York, New York
| | - Smita Sihag
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York
- Department of Surgery, Weill Cornell Medical College, New York, New York
| | - David R. Jones
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York
- Department of Surgery, Weill Cornell Medical College, New York, New York
| | - Daniel G. Coit
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York
- Department of Surgery, Weill Cornell Medical College, New York, New York
| | - Yaelle Tuvy
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Kendall Cowie
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - David B. Solit
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
- Department of Medicine, Weill Cornell Medical College, New York, New York
- Marie-Josée & Henry R. Kravis Center for Molecular Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Nikolaus Schultz
- Department of Epidemiology & Biostatistics, Memorial Sloan Kettering Cancer Center, New York, New York
- Marie-Josée & Henry R. Kravis Center for Molecular Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Jaclyn F. Hechtman
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Kenneth Offit
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
- Department of Medicine, Weill Cornell Medical College, New York, New York
- Niehaus Center for Inherited Cancer Genomics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Vijai Joseph
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
- Department of Medicine, Weill Cornell Medical College, New York, New York
- Niehaus Center for Inherited Cancer Genomics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Diana Mandelker
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Yelena Y. Janjigian
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
- Department of Medicine, Weill Cornell Medical College, New York, New York
| | - Zsofia K. Stadler
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
- Department of Medicine, Weill Cornell Medical College, New York, New York
- Niehaus Center for Inherited Cancer Genomics, Memorial Sloan Kettering Cancer Center, New York, New York
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14
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Imai S, Ooki T, Murata-Kamiya N, Komura D, Tahmina K, Wu W, Takahashi-Kanemitsu A, Knight CT, Kunita A, Suzuki N, Del Valle AA, Tsuboi M, Hata M, Hayakawa Y, Ohnishi N, Ueda K, Fukayama M, Ushiku T, Ishikawa S, Hatakeyama M. Helicobacter pylori CagA elicits BRCAness to induce genome instability that may underlie bacterial gastric carcinogenesis. Cell Host Microbe 2021; 29:941-958.e10. [PMID: 33989515 DOI: 10.1016/j.chom.2021.04.006] [Citation(s) in RCA: 73] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 02/17/2021] [Accepted: 04/14/2021] [Indexed: 12/15/2022]
Abstract
Infection with CagA-producing Helicobacter pylori plays a causative role in the development of gastric cancer. Upon delivery into gastric epithelial cells, CagA deregulates prooncogenic phosphatase SHP2 while inhibiting polarity-regulating kinase PAR1b through complex formation. Here, we show that CagA/PAR1b interaction subverts nuclear translocation of BRCA1 by inhibiting PAR1b-mediated BRCA1 phosphorylation. It hereby induces BRCAness that promotes DNA double-strand breaks (DSBs) while disabling error-free homologous recombination-mediated DNA repair. The CagA/PAR1b interaction also stimulates Hippo signaling that circumvents apoptosis of DNA-damaged cells, giving cells time to repair DSBs through error-prone mechanisms. The DSB-activated p53-p21Cip1 axis inhibits proliferation of CagA-delivered cells, but the inhibition can be overcome by p53 inactivation. Indeed, sequential pulses of CagA in TP53-mutant cells drove somatic mutation with BRCAness-associated genetic signatures. Expansion of CagA-delivered cells with BRCAness-mediated genome instability, from which CagA-independent cancer-predisposing cells arise, provides a plausible "hit-and-run mechanism" of H. pylori CagA for gastric carcinogenesis.
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Affiliation(s)
- Satoshi Imai
- Department of Microbiology, Graduate School of Medicine, the University of Tokyo, Tokyo 113-0033, Japan
| | - Takuya Ooki
- Department of Microbiology, Graduate School of Medicine, the University of Tokyo, Tokyo 113-0033, Japan
| | - Naoko Murata-Kamiya
- Department of Microbiology, Graduate School of Medicine, the University of Tokyo, Tokyo 113-0033, Japan.
| | - Daisuke Komura
- Department of Preventive Medicine, Graduate School of Medicine, the University of Tokyo, Tokyo 113-0033, Japan
| | - Kamrunnesa Tahmina
- Department of Microbiology, Graduate School of Medicine, the University of Tokyo, Tokyo 113-0033, Japan
| | - Weida Wu
- Department of Microbiology, Graduate School of Medicine, the University of Tokyo, Tokyo 113-0033, Japan
| | | | - Christopher Takaya Knight
- Department of Microbiology, Graduate School of Medicine, the University of Tokyo, Tokyo 113-0033, Japan
| | - Akiko Kunita
- Department of Pathology, Graduate School of Medicine, the University of Tokyo, Tokyo 113-0033, Japan
| | - Nobumi Suzuki
- Department of Gastroenterology, Graduate School of Medicine, the University of Tokyo, Tokyo 113-0033, Japan
| | - Adriana A Del Valle
- Department of Microbiology, Graduate School of Medicine, the University of Tokyo, Tokyo 113-0033, Japan
| | - Mayo Tsuboi
- Department of Gastroenterology, Graduate School of Medicine, the University of Tokyo, Tokyo 113-0033, Japan
| | - Masahiro Hata
- Department of Gastroenterology, Graduate School of Medicine, the University of Tokyo, Tokyo 113-0033, Japan
| | - Yoku Hayakawa
- Department of Gastroenterology, Graduate School of Medicine, the University of Tokyo, Tokyo 113-0033, Japan
| | - Naomi Ohnishi
- Cancer Precision Medicine Center, Japanese Foundation for Cancer Research, Tokyo 135-8550, Japan
| | - Koji Ueda
- Cancer Precision Medicine Center, Japanese Foundation for Cancer Research, Tokyo 135-8550, Japan
| | - Masashi Fukayama
- Department of Pathology, Graduate School of Medicine, the University of Tokyo, Tokyo 113-0033, Japan
| | - Tetsuo Ushiku
- Department of Pathology, Graduate School of Medicine, the University of Tokyo, Tokyo 113-0033, Japan
| | - Shumpei Ishikawa
- Department of Preventive Medicine, Graduate School of Medicine, the University of Tokyo, Tokyo 113-0033, Japan
| | - Masanori Hatakeyama
- Department of Microbiology, Graduate School of Medicine, the University of Tokyo, Tokyo 113-0033, Japan.
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15
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Koustas E, Karamouzis MV, Sarantis P, Schizas D, Papavassiliou AG. Inhibition of c-MET increases the antitumour activity of PARP inhibitors in gastric cancer models. J Cell Mol Med 2020; 24:10420-10431. [PMID: 32686903 PMCID: PMC7521333 DOI: 10.1111/jcmm.15655] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 06/29/2020] [Accepted: 06/30/2020] [Indexed: 02/05/2023] Open
Abstract
Gastric cancer is the fifth most common malignancy and the third leading cause of cancer‐related death worldwide. Activation of c‐MET increases tumour cell survival through the initiation of the DNA damage repair pathway. PARP is an essential key in the DNA damage repair pathway. The primary role of PARP is to detect and initiate an immediate cellular response to single‐strand DNA breaks. Tumours suppressor genes such as BRCA1/2 are closely associated with the DNA repair pathway. In BRCA1/2 mutations or deficiency status, cells are more likely to develop additional genetic alterations and chromosomal instability and can lead to cancer. In this study, we investigate the role of c‐MET and PARP inhibition in a gastric cancer model. We exploited functional in vitro and in vivo experiments to assess the antitumour potential of co‐inhibition of c‐MET (SU11274) and PARP (NU1025). This leads to a reduction of gastric cancer cells viability, especially after knockdown of BRCA1/2 through apoptosis and induction of γ‐Η2ΑΧ. Moreover, in AGS xenograft models, the combinatorial treatment of NU1025 plus SU11274 reduced tumour growth and triggers apoptosis. Collectively, our data may represent a new therapeutic approach for GC thought co‐inhibition of c‐MET and PARP, especially for patients with BRCA1/2 deficiency tumours.
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Affiliation(s)
- Evangelos Koustas
- Molecular Oncology Unit, Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Michalis V Karamouzis
- Molecular Oncology Unit, Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, Athens, Greece.,First Department of Internal Medicine, 'Laiko' General Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Panagiotis Sarantis
- Molecular Oncology Unit, Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Dimitrios Schizas
- First Department of Surgery, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Athanasios G Papavassiliou
- Molecular Oncology Unit, Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, Athens, Greece
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16
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The Melanoma and Breast Cancer Association: An Overview of their 'Second Primary Cancers' and the Epidemiological, Genetic and Biological correlations. Crit Rev Oncol Hematol 2020; 152:102989. [PMID: 32485529 DOI: 10.1016/j.critrevonc.2020.102989] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 04/22/2020] [Accepted: 05/14/2020] [Indexed: 12/18/2022] Open
Abstract
This study reviews the relevant epidemiological studies associating cutaneous melanoma and breast carcinomas and provides an overview of the possible genetic, biological and bias factors that underpin this relationship. Standardised incidence ratio (SIR) for primary cutaneous melanoma after breast carcinoma ranged from 1.16 to 5.13 and ranged from 1.03 to 4.10 for primary breast carcinoma after cutaneous melanoma. Epidemiological studies highlight age, gender and use of radiotherapy and chemotherapy as potential risk factors for second primary cancers (SPCs). Mutations in BRCA2, CDKN2A, CDK4 and BAP1 may partly underlie any SPC association. The impact of socio-cultural factors and surveillance bias may be attributed to the findings of SPC partially or entirely. In conclusion, this study has highlighted the association between breast carcinoma and melanoma and identified various factors for further research and the optimised management of patients with both cancers.
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17
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Lee YC, Lee YC, Li CY, Lee YL, Chen BL. BRCA1 and BRCA2 Gene Mutations and Lung Cancer Sisk: A Meta-Analysis. MEDICINA (KAUNAS, LITHUANIA) 2020; 56:E212. [PMID: 32349445 PMCID: PMC7279251 DOI: 10.3390/medicina56050212] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 04/21/2020] [Accepted: 04/21/2020] [Indexed: 01/07/2023]
Abstract
Background and objective: BRCA1 and BRCA2 are associated with many cancer types in addition to hereditary breast and ovarian cancers. However, their relation to lung cancer remains to be explored. Materials and Methods: Observation studies were systematically reviewed to explore the association of BRCA1 or BRCA2 with lung cancer. PubMed, MEDLINE [EBSCOhost], and relevant articles published up to 7 January 2020 were searched. Odd ratio (OR), standardized morbidity rate (SMR), and cancer-specific standardized incidence ratios (SIRs) were pooled together as relative risk (RR) estimates (95% confidence interval [CI], 0.66-1.40). Results: Thirteen studies were included for analysis. Results showed that the RR of BRCA2 is 0.76 (95% CI, 0.48-1.19), the overall RR is 0.96 (95% CI, 0.66-1.40), and that of BRCA1 is 0.66 (95% CI, 0.41-1.05), indicating that it was not associated with lung cancer. Conclusion: With the limitation of the retrospective study design and severe heterogeneity, these results inform clinicians and relevant families that BRCA1 and BRCA2 mutation carriers have no increased risk of lung cancer.
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Affiliation(s)
- Yen-Chien Lee
- Department of Oncology, Tainan Hospital, Ministry of Health and Welfare, Tainan 700, Taiwan;
- Department of Internal Medicine, National Cheng Kung University Hospital, College, Tainan 700, Taiwan
| | | | - Chung-Yi Li
- Department of Public Health, College of Medicine, National Cheng Kung University, Tainan 700, Taiwan;
- Department of Public Health, College of Public Health, China Medical University, Taichung 404, Taiwan
- Department of Healthcare Administration, College of Medical and Health Science, Asia University, Taichung 413, Taiwan
| | - Yen-Ling Lee
- Department of Oncology, Tainan Hospital, Ministry of Health and Welfare, Tainan 700, Taiwan;
| | - Bae-Ling Chen
- College of Intelligence, National Taichung University of Science and Technology, Taichung 404, Taiwan;
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18
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Dębniak T, Scott RJ, Górski B, Masojć B, Kram A, Maleszka R, Cybulski C, Paszkowska-Szczur K, Kashyap A, Murawa D, Malińska K, Kiedrowicz M, Rogoża-Janiszewska E, Rudnicka H, Deptuła J, Domagała P, Kluźniak W, Lener MR, Lubiński J. BRCA1/2 mutations are not a common cause of malignant melanoma in the Polish population. PLoS One 2018; 13:e0204768. [PMID: 30286154 PMCID: PMC6171837 DOI: 10.1371/journal.pone.0204768] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Accepted: 09/13/2018] [Indexed: 12/11/2022] Open
Abstract
The association of BRCA1/2 mutations with melanoma is not completely determined; the interpretation of variants of unknown significance is also problematic. To evaluate these issues we explored the molecular basis of melanoma risk by performing whole-exome sequencing on a cohort of 96 unrelated Polish early-onset melanoma patients and targeted sequencing of BRCA1/2 genes on additional 30 melanoma patients with familial aggregation of breast and other cancers. Sequencing was performed on peripheral blood. We evaluated MutationTaster, Polyphen2, SIFT, PROVEAN algorithms, analyzed segregation with cancer disease (in both families with identified BRCA2 variants) and in one family performed LOH (based on 2 primary tumors). We found neither pathogenic mutations nor variants of unknown significance within BRCA1. We identified two BRCA2 variants of unknown significance: c.9334G>A and c.4534 C>T. Disease allele frequency was evaluated by genotyping of 1230 consecutive melanoma cases, 5000 breast cancer patients, 3500 prostate cancers and 9900 controls. Both variants were found to be absent among unselected cancer patients and healthy controls. The MutationTaster, Polyphen2 and SIFT algorithms indicate that c.9334G>A is a damaging variant. Due to lack of tumour tissue LOH analysis could not be performed for this variant. The variant segregated with the disease. The c.4534 C>T variant did not segregate with disease, there was no LOH of the variant. The c.9334G>A variant, classified as a rare variant of unknown significance, on current evidence may predisposes to cancers of the breast, prostate and melanoma. Functional studies to describe how the DNA change affects the protein function and a large multi-center study to evaluate its penetrance are required.
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Affiliation(s)
- Tadeusz Dębniak
- Department of Genetics and Pathomorphology, International Hereditary Cancer Center, Pomeranian Medical University in Szczecin, Szczecin, Poland
- * E-mail:
| | - Rodney J. Scott
- School of Biomedical Sciences and Pharmacy, Faculty of Health, University of Newcastle and the Hunter Medical Research Institute, Newcastle, New South Wales, Australia
| | - Bohdan Górski
- Department of Genetics and Pathomorphology, International Hereditary Cancer Center, Pomeranian Medical University in Szczecin, Szczecin, Poland
| | | | - Andrzej Kram
- West Pomeranian Oncology Center, Szczecin, Poland
| | | | - Cezary Cybulski
- Department of Genetics and Pathomorphology, International Hereditary Cancer Center, Pomeranian Medical University in Szczecin, Szczecin, Poland
| | - Katarzyna Paszkowska-Szczur
- Department of Genetics and Pathomorphology, International Hereditary Cancer Center, Pomeranian Medical University in Szczecin, Szczecin, Poland
| | - Aniruddh Kashyap
- Department of Genetics and Pathomorphology, International Hereditary Cancer Center, Pomeranian Medical University in Szczecin, Szczecin, Poland
| | - Dawid Murawa
- I Department of Oncological and General Surgery, Greater Poland Cancer Center, Poznań, Poland
| | - Karolina Malińska
- Department of Genetics and Pathomorphology, International Hereditary Cancer Center, Pomeranian Medical University in Szczecin, Szczecin, Poland
| | | | - Emilia Rogoża-Janiszewska
- Department of Genetics and Pathomorphology, International Hereditary Cancer Center, Pomeranian Medical University in Szczecin, Szczecin, Poland
| | - Helena Rudnicka
- Department of Genetics and Pathomorphology, International Hereditary Cancer Center, Pomeranian Medical University in Szczecin, Szczecin, Poland
| | - Jakub Deptuła
- Department of Genetics and Pathomorphology, International Hereditary Cancer Center, Pomeranian Medical University in Szczecin, Szczecin, Poland
| | - Paweł Domagała
- Department of Pathology, Pomeranian Medical University in Szczecin, Szczecin, Poland
| | - Wojciech Kluźniak
- Department of Genetics and Pathomorphology, International Hereditary Cancer Center, Pomeranian Medical University in Szczecin, Szczecin, Poland
| | - Marcin R. Lener
- Department of Genetics and Pathomorphology, International Hereditary Cancer Center, Pomeranian Medical University in Szczecin, Szczecin, Poland
| | - Jan Lubiński
- Department of Genetics and Pathomorphology, International Hereditary Cancer Center, Pomeranian Medical University in Szczecin, Szczecin, Poland
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19
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Ichikawa H, Wakai T, Nagahashi M, Shimada Y, Hanyu T, Kano Y, Muneoka Y, Ishikawa T, Takizawa K, Tajima Y, Sakata J, Kobayashi T, Kemeyama H, Yabusaki H, Nakagawa S, Sato N, Kawasaki T, Homma K, Okuda S, Lyle S, Takabe K. Pathogenic germline BRCA1/2 mutations and familial predisposition to gastric cancer. JCO Precis Oncol 2018; 2. [PMID: 31608315 PMCID: PMC6788804 DOI: 10.1200/po.18.00097] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Affiliation(s)
- Hiroshi Ichikawa
- Division of Digestive and General Surgery, Niigata University Graduate School of Medical and Dental Sciences, 1-757 Asahimachi-dori, Chuo-ku, Niigata City, Niigata 951-8510, Japan
| | - Toshifumi Wakai
- Division of Digestive and General Surgery, Niigata University Graduate School of Medical and Dental Sciences, 1-757 Asahimachi-dori, Chuo-ku, Niigata City, Niigata 951-8510, Japan
| | - Masayuki Nagahashi
- Division of Digestive and General Surgery, Niigata University Graduate School of Medical and Dental Sciences, 1-757 Asahimachi-dori, Chuo-ku, Niigata City, Niigata 951-8510, Japan
| | - Yoshifumi Shimada
- Division of Digestive and General Surgery, Niigata University Graduate School of Medical and Dental Sciences, 1-757 Asahimachi-dori, Chuo-ku, Niigata City, Niigata 951-8510, Japan
| | - Takaaki Hanyu
- Division of Digestive and General Surgery, Niigata University Graduate School of Medical and Dental Sciences, 1-757 Asahimachi-dori, Chuo-ku, Niigata City, Niigata 951-8510, Japan
| | - Yosuke Kano
- Division of Digestive and General Surgery, Niigata University Graduate School of Medical and Dental Sciences, 1-757 Asahimachi-dori, Chuo-ku, Niigata City, Niigata 951-8510, Japan
| | - Yusuke Muneoka
- Division of Digestive and General Surgery, Niigata University Graduate School of Medical and Dental Sciences, 1-757 Asahimachi-dori, Chuo-ku, Niigata City, Niigata 951-8510, Japan
| | - Takashi Ishikawa
- Division of Digestive and General Surgery, Niigata University Graduate School of Medical and Dental Sciences, 1-757 Asahimachi-dori, Chuo-ku, Niigata City, Niigata 951-8510, Japan
| | - Kazuyasu Takizawa
- Division of Digestive and General Surgery, Niigata University Graduate School of Medical and Dental Sciences, 1-757 Asahimachi-dori, Chuo-ku, Niigata City, Niigata 951-8510, Japan
| | - Yosuke Tajima
- Division of Digestive and General Surgery, Niigata University Graduate School of Medical and Dental Sciences, 1-757 Asahimachi-dori, Chuo-ku, Niigata City, Niigata 951-8510, Japan
| | - Jun Sakata
- Division of Digestive and General Surgery, Niigata University Graduate School of Medical and Dental Sciences, 1-757 Asahimachi-dori, Chuo-ku, Niigata City, Niigata 951-8510, Japan
| | - Takashi Kobayashi
- Division of Digestive and General Surgery, Niigata University Graduate School of Medical and Dental Sciences, 1-757 Asahimachi-dori, Chuo-ku, Niigata City, Niigata 951-8510, Japan
| | - Hitoshi Kemeyama
- Division of Digestive and General Surgery, Niigata University Graduate School of Medical and Dental Sciences, 1-757 Asahimachi-dori, Chuo-ku, Niigata City, Niigata 951-8510, Japan
| | - Hiroshi Yabusaki
- Department of Gastroenterological Surgery, Niigata Cancer Center Hospital, 2-15-3 Kawagishi-cho, Chuo-ku, Niigata City, Niigata 951-8566, Japan
| | - Satoru Nakagawa
- Department of Gastroenterological Surgery, Niigata Cancer Center Hospital, 2-15-3 Kawagishi-cho, Chuo-ku, Niigata City, Niigata 951-8566, Japan
| | - Nobuaki Sato
- Department of Breast Oncology, Niigata Cancer Center Hospital, 2-15-3 Kawagishi-cho, Chuo-ku, Niigata City, Niigata 951-8566, Japan
| | - Takashi Kawasaki
- Department of Pathology, Niigata Cancer Center Hospital, 2-15-3 Kawagishi-cho, Chuo-ku, Niigata City, Niigata 951-8566, Japan
| | - Keiichi Homma
- Department of Pathology, Niigata Cancer Center Hospital, 2-15-3 Kawagishi-cho, Chuo-ku, Niigata City, Niigata 951-8566, Japan
| | - Shujiro Okuda
- Division of Bioinformatics, Niigata University Graduate School of Medical and Dental Sciences, 1-757 Asahimachi-dori, Chuo-ku, Niigata City, Niigata 951-8510, Japan
| | - Stephen Lyle
- University of Massachusetts Medical School, 55 Lake Avenue North, Worcester, Massachusetts 01655, USA
| | - Kazuaki Takabe
- Breast Surgery, Roswell Park Cancer Institute, Elm & Carlton Streets, Buffalo, New York 14263, USA.,Department of Surgery, University at Buffalo the State University of New York, 100 High Street, Buffalo New York 14203, USA
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20
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Al-Taee A, Gill A, Mahon S, Lai J, Jallad B. Gallbladder Adenocarcinoma as the First Manifestation of Germline BRCA1 Mutation. J Gastrointest Cancer 2017; 50:147-150. [PMID: 28785956 DOI: 10.1007/s12029-017-9995-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Ahmad Al-Taee
- Department of Internal Medicine, Saint Louis University School of Medicine, 3635 Vista Ave, Saint Louis, MO, 63104, USA.
| | - Ammara Gill
- Saint Louis University Cancer Center, St Louis, MO, USA
| | - Suzanne Mahon
- Saint Louis University Cancer Center, St Louis, MO, USA
| | - Jinping Lai
- Department of Pathology, University of Florida, Gainesville, FL, USA
| | - Bassel Jallad
- Saint Louis University Cancer Center, St Louis, MO, USA
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21
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Digennaro M, Sambiasi D, Tommasi S, Pilato B, Diotaiuti S, Kardhashi A, Trojano G, Tufaro A, Paradiso AV. Hereditary and non-hereditary branches of family eligible for BRCA test: cancers in other sites. Hered Cancer Clin Pract 2017; 15:7. [PMID: 28559958 PMCID: PMC5445420 DOI: 10.1186/s13053-017-0067-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Accepted: 05/17/2017] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND The analysis of relationships of BRCA alterations with cancer at sites other than breast/ovary may provide innovative information concerning BRCA pathogenic role and support additional clinical decisions. Aim of this study is to compare presence of cancers in other sites in members of hereditary (H) and not-hereditary (nH) branches of families of patients eligible to BRCA test. METHODS We retrospectively analyzed the incidence of cancer in other sites in members of 136 families eligible for hereditary breast/ovarian cancer genetic counseling at Centro Studi Tumori Eredo-familiari of our Institute; we compared the frequency of other cancer types in 1156 members of the H-branch with respect to 1062 members of nH-Branch. The families belonging to a proband case and with informative members in at least three generation entered the present study. RESULTS The frequency of other Cancers in members of H-branch was significantly higher than that in members of nH-branch (161 vs 75 cancers; p < 0.0001). In specific, members of H-branch had a significantly higher probability to have more lung cancer (38 vs 9;p < 0.0006), kidney cancer (23 vs 5;p < 0.0005), liver cancer (13 vs 3;p < 0.02) and larynx cancer (14 vs 4;p < 0.03). Interestingly, to belong to H-branch resulted significantly associated with a higher probability of lung cancer (OR 4.5; 2.15-9.38 95%C.I.), liver cancer (OR: 4.02; 1.14-14.15 95% C.I.) and larynx cancer (OR:3.4; 1.12-10.39 95%C.I.) independently from Gender and Age. CONCLUSIONS Members belonging to the H-branch of families of patients eligible to BRCA test have a higher risk of tumors in lung, larynx and liver. Clinicians should consider the increased risk for these cancers to activate prevention/early diagnosis practices in members of families with breast/ovarian familial cancer syndrome.
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Affiliation(s)
- M Digennaro
- Centro Studi Tumori Eredo-familiari. Istituto Tumori G Paolo II,IRCCS, 70124 Bari, Italy
| | - D Sambiasi
- Centro Studi Tumori Eredo-familiari. Istituto Tumori G Paolo II,IRCCS, 70124 Bari, Italy
| | - S Tommasi
- Laboratorio Genetica Molecolare; Istituto Tumori G Paolo II, IRCCS, 70124 Bari, Italy
| | - B Pilato
- Laboratorio Genetica Molecolare; Istituto Tumori G Paolo II, IRCCS, 70124 Bari, Italy
| | - S Diotaiuti
- UO Senologia Tumori. Istituto Tumori G Paolo II,IRCCS, 70124 Bari, Italy
| | - A Kardhashi
- UO Senologia Tumori. Istituto Tumori G Paolo II,IRCCS, 70124 Bari, Italy.,UO Ginecologia Oncologica, Istituto Tumori G Paolo II, IRCCS, 70124 Bari, Italy
| | - G Trojano
- ASST Fatebene Fratelli, Milan, Italy
| | - A Tufaro
- Biobanca Istituzionale, Istituto Tumori G Paolo II, IRCCS, 70124 Bari, Italy
| | - A V Paradiso
- Centro Studi Tumori Eredo-familiari. Istituto Tumori G Paolo II,IRCCS, 70124 Bari, Italy.,Centro Studi Tumori Eredo-Familiari, Istituto Tumori G Paolo II, IRCCS, Via O. Flacco, 65, 70124 Bari, Italy
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22
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Germline Mutations in ATM and BRCA1/2 Distinguish Risk for Lethal and Indolent Prostate Cancer and are Associated with Early Age at Death. Eur Urol 2016; 71:740-747. [PMID: 27989354 DOI: 10.1016/j.eururo.2016.11.033] [Citation(s) in RCA: 236] [Impact Index Per Article: 29.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Accepted: 11/24/2016] [Indexed: 01/06/2023]
Abstract
BACKGROUND Germline mutations in BRCA1/2 and ATM have been associated with prostate cancer (PCa) risk. OBJECTIVE To directly assess whether germline mutations in these three genes distinguish lethal from indolent PCa and whether they confer any effect on age at death. DESIGN, SETTING, AND PARTICIPANTS A retrospective case-case study of 313 patients who died of PCa and 486 patients with low-risk localized PCa of European, African, and Chinese descent. Germline DNA of each of the 799 patients was sequenced for these three genes. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS Mutation carrier rates and their effect on lethal PCa were analyzed using the Fisher's exact test and Cox regression analysis, respectively. RESULTS AND LIMITATIONS The combined BRCA1/2 and ATM mutation carrier rate was significantly higher in lethal PCa patients (6.07%) than localized PCa patients (1.44%), p=0.0007. The rate also differed significantly among lethal PCa patients as a function of age at death (10.00%, 9.08%, 8.33%, 4.94%, and 2.97% in patients who died ≤ 60 yr, 61-65 yr, 66-70 yr, 71-75 yr, and over 75 yr, respectively, p=0.046) and time to death after diagnosis (12.26%, 4.76%, and 0.98% in patients who died ≤ 5 yr, 6-10 yr, and>10 yr after a PCa diagnosis, respectively, p=0.0006). Survival analysis in the entire cohort revealed mutation carriers remained an independent predictor of lethal PCa after adjusting for race and age, prostate-specific antigen, and Gleason score at the time of diagnosis (hazard ratio=2.13, 95% confidence interval: 1.24-3.66, p=0.004). A limitation of this study is that other DNA repair genes were not analyzed. CONCLUSIONS Mutation status of BRCA1/2 and ATM distinguishes risk for lethal and indolent PCa and is associated with earlier age at death and shorter survival time. PATIENT SUMMARY Prostate cancer patients with inherited mutations in BRCA1/2 and ATM are more likely to die of prostate cancer and do so at an earlier age.
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23
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Frank C, Sundquist J, Hemminki A, Hemminki K. Familial Associations Between Prostate Cancer and Other Cancers. Eur Urol 2016; 71:162-165. [PMID: 27498599 DOI: 10.1016/j.eururo.2016.07.031] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Accepted: 07/20/2016] [Indexed: 02/02/2023]
Abstract
Prostate cancer (PCa) has a large familial component, but understanding of its genetic basis is fragmentary. Breast cancers may be associated with PCa, but whether this is true for other tumor types is poorly established. We used a novel approach to study familial associations of any type of cancer with PCa. We assessed the relative risk (RR) for all types of tumors as a function of the number of first-degree relatives diagnosed with PCa. We hypothesized that for a familial association to be real, the RR for a given type of cancer should increase with the number of PCa diagnoses. In families with multiple PCa patients, significantly increased risks were observed for female breast cancer (RR 1.37 for families with three men with PCa), kidney cancer (RR 2.32), nervous system tumors (RR 1.77; RR 2.40 when PCa was diagnosed before age 70 yr), and myeloma (RR 2.44; RR 6.29 when PCa was diagnosed before age 70 yr). Some evidence of association was also found for melanoma (RR 1.82) and endocrine tumors (RR 2.18). The consistency and magnitude of the effects suggest that familial PCa is genetically associated with breast, kidney, and nervous system tumors and myeloma. This suggestion has implications for clinical counseling and design of genetic studies. PATIENT SUMMARY It is known that prostate cancer runs in families, but it is not known whether other cancers are common in such families. We showed that at least breast, kidney, and nervous system tumors and myeloma occur more often than by chance.
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Affiliation(s)
- Christoph Frank
- Division of Molecular Genetic Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Jan Sundquist
- Center for Primary Health Care Research, Lund University, Malmö, Sweden; Stanford Prevention Research Center, Stanford University School of Medicine, Stanford, CA, USA
| | - Akseli Hemminki
- Cancer Gene Therapy Group, Faculty of Medicine, University of Helsinki, Helsinki, Finland; Helsinki University Hospital Comprehensive Cancer Center, Helsinki, Finland
| | - Kari Hemminki
- Division of Molecular Genetic Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany; Center for Primary Health Care Research, Lund University, Malmö, Sweden.
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24
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Streff H, Profato J, Ye Y, Nebgen D, Peterson SK, Singletary C, Arun BK, Litton JK. Cancer Incidence in First- and Second-Degree Relatives of BRCA1 and BRCA2 Mutation Carriers. Oncologist 2016; 21:869-74. [PMID: 27306910 DOI: 10.1634/theoncologist.2015-0354] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Accepted: 03/08/2016] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Mutations in the BRCA1 and BRCA2 genes are associated with increased risk of breast, ovarian, and several other cancers. The purpose of the present study was to evaluate the incidence of cancer in first- and second-degree relatives of BRCA mutation carriers compared with the general population. MATERIALS AND METHODS A total of 1,086 pedigrees of BRCA mutation carriers was obtained from a prospectively maintained, internal review board-approved study of persons referred for clinical genetic counseling at the University of Texas MD Anderson Cancer Center. We identified 9,032 first- and second-degree relatives from 784 pedigrees that had demonstrated a clear indication of parental origin of mutation. Standardized incidence ratios (SIRs) were used to compare the observed incidence of 20 primary cancer sites to the expected incidence of each cancer based on the calculated risk estimates according to each subject's age, sex, and ethnicity. RESULTS BRCA1 families had increased SIRs for breast and ovarian cancer (p < .001) and decreased SIRs for kidney, lung, prostate, and thyroid cancer and non-Hodgkin's lymphoma (p < .001). BRCA2 families had increased SIRs for breast, ovarian, and pancreatic cancer (p < .001) and decreased SIRs for kidney, lung, thyroid, and uterine cancer and non-Hodgkin's lymphoma (p < .0025). Analysis of only first-degree relatives (n = 4,099) identified no decreased SIRs and agreed with the increased SIRs observed in the overall study population. CONCLUSION We have confirmed previous reports of an association between breast, ovarian, and pancreatic cancers with BRCA mutations. Additional research to quantify the relative risks of these cancers for BRCA mutation carriers can help tailor recommendations for risk reduction and enhance genetic counseling. IMPLICATIONS FOR PRACTICE BRCA gene mutations have been well described to carry an increased risk of both breast and ovarian cancer. However, the implications and risks of other cancers continues to be investigated. Evaluating the risks for other cancers further is key in identifying and managing risk reduction strategies.
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Affiliation(s)
- Haley Streff
- Genetic Counseling Program, The University of Texas Graduate School of Biomedical Sciences at Houston, Houston, Texas, USA
| | - Jessica Profato
- Department of Breast Medical Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Yuanqing Ye
- Department of Epidemiology, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Denise Nebgen
- Department of Gynecologic Oncology and Reproductive Medicine, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Susan K Peterson
- Department of Behavioral Science, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Claire Singletary
- Department of Pediatrics, The University of Texas Medical School at Houston, Houston, Texas, USA Department of Obstetrics, Gynecology, and Reproductive Sciences, University of Texas Medical School at Houston, Houston, Texas, USA
| | - Banu K Arun
- Department of Breast Medical Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Jennifer K Litton
- Department of Breast Medical Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
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25
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Ławniczak M, Jakubowska A, Białek A, Lubiński J, Jaworska-Bieniek K, Kaczmarek K, Starzyńska T. BRCA1 founder mutations do not contribute to increased risk of gastric cancer in the Polish population. Hered Cancer Clin Pract 2016; 14:3. [PMID: 26779294 PMCID: PMC4714446 DOI: 10.1186/s13053-015-0043-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2015] [Accepted: 12/14/2015] [Indexed: 12/20/2022] Open
Abstract
Background Gastric cancer (GC) is part of the spectrum of diseases linked to BRCA1 and BRCA2 mutations that increase the risk of breast and ovarian cancer. Data suggesting an increased risk of developing GC among BRCA1 and BRCA2 mutation carriers are based almost exclusively on indirect studies. The objective was to assess in a direct study whether there is a relationship between GC and selected recurrent BRCA1 and BRCA2 mutations in the Polish population. Methods Three hundred seventeen GC patients (193 males and 124 females; mean age 59.5 ± 12.8 y) diagnosed at the Department of Gastroenterology at the Pomeranian Medical University were included in this retrospective study. All patients were genotyped for 3 BRCA1 Polish founder mutations (5382insC, C61G and 4153delA) as well as for 9 known recurrent mutations in BRCA1 and BRCA2 genes. Genotyping was performed using allele-specific oligonucleotide polymerase chain reaction (ASA-PCR) for 4153delA and 5382insC, restriction fragment length polymorphism (PCR-RFLP) for C61G and TaqMan real-time PCR for 185delAG, 3819del5, 3875del4, 5370C > T, 886delGT, 4075delGT, 5467insT, 6174delT and 8138del5. Results Among tested mutations one founder BRCA1 mutation 5382insC was detected in two of 317 (0.63 %) GC cases. A comparison of frequency of detected BRCA1 founder mutations in GC patients to previously described 4570 Polish controls (0.63 % vs. 0.48 %) failed to indicate an increased risk of GC in the mutation carriers (OR = 1.3; 95 % CI 0.3-5.6, p = 0.71). A comparison of frequency of GC male cases and male controls (1.0 % vs. 0.43 %,OR = 1.5; 95 % CI 0.3-6.4, p = 0.61) allowed to formulate the same conclusion that there is no increased risk for GC for males. None of the 9 recurrent BRCA1 and BRCA2 mutations has been detected in tested GC patients. Conclusion The current study indicates that founder BRCA1 mutations reported in Polish breast/ovarian cancer patients do not contribute to increased GC risk. The nine tested recurrent BRCA1 and BRCA2 mutations were not detected in GC patients which may suggests that they are rare in GC patients in the Polish population. Further analyses, including sequencing of entire sequences of BRCA1 and BRCA2 genes, are necessary to ultimately determine the role of these two genes in GC in Poland.
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Affiliation(s)
- Małgorzata Ławniczak
- Department of Gastroenterology, Pomeranian Medical University, Unii Lubelskiej 1, Szczecin, 71-252 Poland
| | - Anna Jakubowska
- Department of Genetics and Pathology, International Hereditary Cancer Center, Pomeranian Medical University, Połabska 4, Szczecin, 70-115 Poland
| | - Andrzej Białek
- Department of Gastroenterology, Pomeranian Medical University, Unii Lubelskiej 1, Szczecin, 71-252 Poland
| | - Jan Lubiński
- Department of Genetics and Pathology, International Hereditary Cancer Center, Pomeranian Medical University, Połabska 4, Szczecin, 70-115 Poland
| | - Katarzyna Jaworska-Bieniek
- Department of Genetics and Pathology, International Hereditary Cancer Center, Pomeranian Medical University, Połabska 4, Szczecin, 70-115 Poland
| | - Katarzyna Kaczmarek
- Department of Genetics and Pathology, International Hereditary Cancer Center, Pomeranian Medical University, Połabska 4, Szczecin, 70-115 Poland
| | - Teresa Starzyńska
- Department of Gastroenterology, Pomeranian Medical University, Unii Lubelskiej 1, Szczecin, 71-252 Poland
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van der Post RS, Gullo I, Oliveira C, Tang LH, Grabsch HI, O'Donovan M, Fitzgerald RC, van Krieken H, Carneiro F. Histopathological, Molecular, and Genetic Profile of Hereditary Diffuse Gastric Cancer: Current Knowledge and Challenges for the Future. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2016; 908:371-91. [PMID: 27573781 DOI: 10.1007/978-3-319-41388-4_18] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Familial clustering is seen in 10 % of gastric cancer cases and approximately 1-3 % of gastric cancer arises in the setting of hereditary diffuse gastric cancer (HDGC). In families with HDGC, gastric cancer presents at young age. HDGC is predominantly caused by germline mutations in CDH1 and in a minority by mutations in other genes, including CTNNA1. Early stage HDGC is characterized by a few, up to dozens of intramucosal foci of signet ring cell carcinoma and its precursor lesions. These include in situ signet ring cell carcinoma and pagetoid spread of signet ring cells. Advanced HDGC presents as poorly cohesive/diffuse type carcinoma, normally with very few typical signet ring cells, and has a poor prognosis. Currently, it is unknown which factors drive the progression towards aggressive disease, but it is clear that most intramucosal lesions will not have such progression.Immunohistochemical profile of early and advanced HDGC is often characterized by abnormal E-cadherin immunoexpression, including absent or reduced membranous expression, as well as "dotted" or cytoplasmic expression. However, membranous expression of E-cadherin does not exclude HDGC. Intramucosal HDGC (pT1a) presents with an "indolent" phenotype, characterized by typical signet ring cells without immunoexpression of Ki-67 and p53, while advanced carcinomas (pT > 1) display an "aggressive" phenotype with pleomorphic cells, that are immunoreactive for Ki-67 and p53. These features show that the IHC profile is different between intramucosal and more advanced HDGC, providing evidence of phenotypic heterogeneity, and may help to define predictive biomarkers of progression from indolent to aggressive, widely invasive carcinomas.
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Affiliation(s)
- Rachel S van der Post
- Department of Pathology, Radboud University Medical Centre, 9101, Nijmegen, 6500 HB, The Netherlands
| | - Irene Gullo
- Department of Pathology, Centro Hospitalar de São João, Al. Prof. Hernâni Monteiro, Porto, 4200-319, Portugal.,Department of Pathology and Oncology, Faculdade de Medicina da Universidade do Porto (FMUP), Al. Prof. Hernâni Monteiro, Porto, 4200-319, Portugal.,Instituto de Patologia e Imunologia Molecular da Universidade do Porto (Ipatimup), Porto, Portugal and Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Dr. Roberto Frias S/N, Porto, 4200-465, Portugal
| | - Carla Oliveira
- Department of Pathology, Centro Hospitalar de São João, Al. Prof. Hernâni Monteiro, Porto, 4200-319, Portugal.,Department of Pathology and Oncology, Faculdade de Medicina da Universidade do Porto (FMUP), Al. Prof. Hernâni Monteiro, Porto, 4200-319, Portugal
| | - Laura H Tang
- Department of Pathology, Memorial Sloan-Kettering Cancer Center, 1275 York Ave., New York, NY, 10065, USA
| | - Heike I Grabsch
- GROW School of Oncology and Developmental Biology and Department of Pathology, Maastricht University Medical Centre, Peter Debyelaan 25, Maastricht, 6229 HX, The Netherlands
| | - Maria O'Donovan
- Department of Histopathology, Cambridge University Hospitals NHS Trust, Cambridge, CB2 0QQ, UK
| | - Rebecca C Fitzgerald
- MRC Cancer Unit, Hutchison-MRC Research Centre, University of Cambridge, 197, Biomedical Campus, Cambridge, CB2 0XZ, UK
| | - Han van Krieken
- Department of Pathology, Radboud University Medical Centre, 9101, Nijmegen, 6500 HB, The Netherlands
| | - Fátima Carneiro
- Department of Pathology, Centro Hospitalar de São João, Al. Prof. Hernâni Monteiro, Porto, 4200-319, Portugal. .,Department of Pathology and Oncology, Faculdade de Medicina da Universidade do Porto (FMUP), Al. Prof. Hernâni Monteiro, Porto, 4200-319, Portugal. .,Instituto de Patologia e Imunologia Molecular da Universidade do Porto (Ipatimup), Porto, Portugal and Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Dr. Roberto Frias S/N, Porto, 4200-465, Portugal.
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Gumaste PV, Penn LA, Cymerman RM, Kirchhoff T, Polsky D, McLellan B. Skin cancer risk in BRCA1/2 mutation carriers. Br J Dermatol 2015; 172:1498-1506. [PMID: 25524463 DOI: 10.1111/bjd.13626] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/10/2014] [Indexed: 02/06/2023]
Abstract
Women with BRCA1/2 mutations have an elevated risk of breast and ovarian cancer. These patients and their clinicians are often concerned about their risk for other cancers, including skin cancer. Research evaluating the association between BRCA1/2 mutations and skin cancer is limited and has produced inconsistent results. Herein, we review the current literature on the risk of melanoma and nonmelanoma skin cancers in BRCA1/2 mutation carriers. No studies have shown a statistically significant risk of melanoma in BRCA1 families. BRCA2 mutations have been linked to melanoma in large breast and ovarian cancer families, though a statistically significant elevated risk was reported in only one study. Five additional studies have shown some association between BRCA2 mutations and melanoma, while four studies did not find any association. With respect to nonmelanoma skin cancers, studies have produced conflicting results. Given the current state of medical knowledge, there is insufficient evidence to warrant increased skin cancer surveillance of patients with a confirmed BRCA1/2 mutation or a family history of a BRCA1/2 mutation, in the absence of standard risk factors. Nonetheless, suspected BRCA1/2 mutation carriers should be counselled about skin cancer risks and may benefit from yearly full skin examinations.
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Affiliation(s)
- P V Gumaste
- The Ronald O. Perelman Department of Dermatology, New York University School of Medicine, New York, NY, U.S.A
| | - L A Penn
- The Ronald O. Perelman Department of Dermatology, New York University School of Medicine, New York, NY, U.S.A
| | - R M Cymerman
- The Ronald O. Perelman Department of Dermatology, New York University School of Medicine, New York, NY, U.S.A
| | - T Kirchhoff
- Departments of Population Health and Environmental Medicine, New York University School of Medicine, New York, NY, U.S.A
| | - D Polsky
- The Ronald O. Perelman Department of Dermatology, New York University School of Medicine, New York, NY, U.S.A
| | - B McLellan
- The Ronald O. Perelman Department of Dermatology, New York University School of Medicine, New York, NY, U.S.A
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BRIP1 variations analysis reveals their relative importance as genetic susceptibility factor for cervical cancer. Biochem Biophys Res Commun 2013; 433:232-6. [DOI: 10.1016/j.bbrc.2013.02.089] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2013] [Accepted: 02/27/2013] [Indexed: 12/24/2022]
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Evidence for predictive role of BRCA1 and bTUBIII in gastric cancer. Med Oncol 2013; 30:545. [PMID: 23532817 DOI: 10.1007/s12032-013-0545-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2012] [Accepted: 03/15/2013] [Indexed: 12/24/2022]
Abstract
Sensitivity of gastric cancer (GC) to conventional cytotoxic therapy may be at least in part attributed to molecular features of the tumor cells. We analyzed all patients with metastatic GC treated in the N.N. Petrov Institute of Oncology (St. Petersburg) within years 1999-2010 and identified 65 cases with evaluable treatment response and available biological material. Two of 65 patients (3 %) carried germ-line BRCA1 5382insC mutation and demonstrated particularly pronounced response to the treatment; both of their tumors showed loss of the remaining BRCA1 allele, thus confirming the causative role of BRCA1 heterozygosity in GC predisposition. RNA expression of TS, DPD, BRCA1, ERCC, TOP2A and bTUBIII was analyzed in the remaining 63 tumors. Low BRCA1 expression was associated with increased response rate [6/9 (67 %) vs. 17/54 (32 %), p = 0.04]. Low bTUBIII level correlated with the improved probability of tumor response [21/49 (43 %) vs. 1/13 (8 %), p = 0.02] and prolonged overall survival (10.5 vs. 7.1 months, p = 0.02); this trend was maintained both for taxane-containing and for taxane-free drug combinations. We conclude that GC should be considered as a part of BRCA1-related hereditary cancer syndrome. Tumors with BRCA1 inactivation and low bTUBIII expression demonstrate improved response to cytotoxic therapy.
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Abstract
Gastric cancer is a global public health concern, ranking as the fourth leading cause of cancer mortality, with a 5-year survival of only 20%. Approximately 10% of gastric cancers appear to have a familial predisposition, and about half of these can be attributed to hereditary germline mutations. We review the genetic syndromes and current standards for genetic counseling, testing, and medical management for screening and treatment of gastric cancer. Recently, germline mutations in the E-cadherin/CDH1 gene have been identified in families with an autosomal dominant inherited predisposition to gastric cancer of the diffuse type. The cumulative lifetime risk of developing gastric cancer in CDH1 mutation carriers is up to 80%, and women from these families also have an increased risk for developing lobular breast cancer. Prophylactic gastrectomies are recommended in unaffected CDH1 mutation carriers, because screening endoscopic examinations and blind biopsies have proven inadequate for surveillance. In addition to this syndrome, gastric cancer risk is elevated in Lynch syndrome associated with germline mutations in DNA mismatch repair genes and microsatellite instability, in hereditary breast and ovarian cancer syndrome due to germline BRCA1 and BRCA2 mutations, in familial adenomatous polyposis caused by germline APC mutations, in Li-Fraumeni syndrome due to germline p53 mutations, in Peutz-Jeghers syndrome associated with germline STK11 mutations, and in juvenile polyposis syndrome associated with germline mutations in the SMAD4 and BMPR1A genes. Guidelines for genetic testing, counseling, and management of individuals with hereditary diffuse gastric cancer are suggested. A raised awareness among the physician and genetic counseling communities regarding these syndromes may allow for increased detection and prevention of gastric cancers in these high-risk individuals.
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Shukla A, Shukla S, Osowo A, Mashtare T, Bhutani MS, Guha S. Risk of colorectal adenomas in women with prior breast cancer. Dig Dis Sci 2012; 57:3240-5. [PMID: 23065089 DOI: 10.1007/s10620-012-2432-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2012] [Accepted: 09/21/2012] [Indexed: 01/23/2023]
Abstract
BACKGROUND AND AIMS Longer life expectancy in patients with prior breast cancer may increase their risk of developing other primary cancers, including colorectal cancer (CRC). Whether the risk of developing CRC in this patient population is higher in comparison to those with no prior cancer remains unclear. The purpose of this study was to compare the prevalence of colorectal adenomas and any CRC in breast cancer survivors with those who have no history of prior cancer and assess any difference with use of antiestrogen therapy. METHODS We compared the prevalence of colorectal cancer and adenomas in breast cancer survivors with that of a group of matched controls. Eligible survivors were ≤85 years of age; had initially been diagnosed with stage 0, I, II, or III breast cancer; had completed all cancer treatments with the exception of adjuvant antiestrogen therapy; and had no evidence of recurrence on follow-up. We used the screening colonoscopy database at our institution to identify age-, sex-, and race-matched controls with no history of cancer. RESULTS We identified 302 study-eligible breast cancer survivors and 302 matched controls. No colorectal cancers were found in either group. Forty-one breast cancer survivors and 30 controls had tubular adenomas; four survivors and three controls had villous adenoma; and eight survivors and ten controls had advanced adenoma. Multivariate regression analysis revealed that adjuvant antiestrogen therapy was not significantly associated with an increased risk of advanced adenoma. CONCLUSIONS The prevalence of colorectal adenomas in breast cancer survivors and controls was similar. Breast cancer survivors, including those receiving adjuvant antiestrogen therapies may follow the colorectal screening guidelines used for average-risk population.
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Affiliation(s)
- Ashish Shukla
- Department of Medicine, University at Buffalo, 462 Grider Street, Buffalo, NY 14215, USA.
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Do Breast Cancer Patients Tested in the Oncology Care Setting Share BRCA Mutation Results with Family Members and Health Care Providers? J Cancer Epidemiol 2012; 2012:498062. [PMID: 22848222 PMCID: PMC3403073 DOI: 10.1155/2012/498062] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2012] [Accepted: 05/25/2012] [Indexed: 01/05/2023] Open
Abstract
BRCA genetic test results provide important information to manage cancer risk for patients and their families. Little is known on the communication of genetic test results by mutation status with family members and physicians in the oncology care setting. As part of a longitudinal study evaluating the impact of genetic counseling and testing among recently diagnosed breast cancer patients, we collected patients' self-reported patterns of disclosure. Descriptive statistics characterized the sample and determined the prevalence of disclosure of BRCA test results to family members and physicians. Of 100 patients who completed the baseline and the 6-month followup survey, 77 reported pursuing testing. The majority shared test results with female first-degree relatives; fewer did with males. Participants were more likely to share results with oncologists compared to surgeons, primary care physicians, or other specialty physicians. These findings suggest that while breast cancer patients may communicate results to at-risk female family members and their medical oncologist, they may need education and support to facilitate communication to other first-degree relatives and providers.
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Castro E, Eeles R. The role of BRCA1 and BRCA2 in prostate cancer. Asian J Androl 2012; 14:409-14. [PMID: 22522501 PMCID: PMC3720154 DOI: 10.1038/aja.2011.150] [Citation(s) in RCA: 106] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2012] [Accepted: 02/23/2012] [Indexed: 12/19/2022] Open
Abstract
One of the strongest risk factors for prostate cancer is a family history of the disease. Germline mutations in the breast cancer predisposition gene 2 (BRCA2) are the genetic events known to date that confer the highest risk of prostate cancer (8.6-fold in men ≤65 years). Although the role of BRCA2 and BRCA1 in prostate tumorigenesis remains unrevealed, deleterious mutations in both genes have been associated with more aggressive disease and poor clinical outcomes. The increasing incidence of prostate cancer worldwide supports the need for new methods to predict outcome and identify patients with potentially lethal forms of the disease. As we present here, BRCA germline mutations, mainly in the BRCA2 gene, are one of those predictive factors. We will also discuss the implications of these mutations in the management of prostate cancer and hypothesize on the potential for the development of strategies for sporadic cases with similar characteristics.
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Affiliation(s)
- Elena Castro
- Oncogenetics Team, The Institute of Cancer Research, Sutton, UK
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Abstract
BRCA1 and BRCA2 mutation carriers have elevated risks of breast and ovarian cancers. The risks for cancers at other sites remain unclear. Melanoma has been associated with BRCA2 mutations in some studies, however, few surveys have included non-melanoma skin cancer. We followed 2729 women with a BRCA1 or BRCA2 mutation for an average of 5.0 years. These women were asked to report new cases of cancer diagnosed in themselves or in their family. The risks of skin cancer were compared for probands with BRCA1 and BRCA2 mutations. Of 1779 women with a BRCA1 mutation, 29 developed skin cancer in the follow-up period (1.6%). Of the 950 women with a BRCA2 mutation, 28 developed skin cancer (3.0%) (OR = 1.83 for BRCA2 versus BRCA1; 95% CI 1.08-3.10; P = 0.02). The odds ratio for basal cell carcinoma was higher (OR = 3.8; 95% CI 1.5-9.4; P = 0.002). BRCA2 mutation carriers are at increased risk for skin cancer, compared with BRCA1 carriers, in particular for basal cell carcinoma.
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35
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Koochekpour S. Androgen receptor signaling and mutations in prostate cancer. Asian J Androl 2010; 12:639-57. [PMID: 20711217 PMCID: PMC3006239 DOI: 10.1038/aja.2010.89] [Citation(s) in RCA: 103] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2010] [Revised: 07/02/2010] [Accepted: 07/14/2010] [Indexed: 12/19/2022] Open
Abstract
Normal and neoplastic growth of the prostate gland are dependent on androgen receptor (AR) expression and function. Androgenic activation of the AR, in association with its coregulatory factors, is the classical pathway that leads to transcriptional activity of AR target genes. Alternatively, cytoplasmic signaling crosstalk of AR by growth factors, neurotrophic peptides, cytokines or nonandrogenic hormones may have important roles in prostate carcinogenesis and in metastatic or androgen-independent (AI) progression of the disease. In addition, cross-modulation by various nuclear transcription factors acting through basal transcriptional machinery could positively or negatively affect the AR or AR target genes expression and activity. Androgen ablation leads to an initial favorable response in a significant number of patients; however, almost invariably patients relapse with an aggressive form of the disease known as castration-resistant or hormone-refractory prostate cancer (PCa). Understanding critical molecular events that lead PCa cells to resist androgen-deprivation therapy is essential in developing successful treatments for hormone-refractory disease. In a significant number of hormone-refractory patients, the AR is overexpressed, mutated or genomically amplified. These genetic alterations maintain an active presence for a highly sensitive AR, which is responsive to androgens, antiandrogens or nonandrogenic hormones and collectively confer a selective growth advantage to PCa cells. This review provides a brief synopsis of the AR structure, AR coregulators, posttranslational modifications of AR, duality of AR function in prostate epithelial and stromal cells, AR-dependent signaling, genetic changes in the form of somatic and germline mutations and their known functional significance in PCa cells and tissues.
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Affiliation(s)
- Shahriar Koochekpour
- Department of Urology and Stanley S. Scott Cancer Center, School of Medicine, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA.
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Francis JC, McCarthy A, Thomsen MK, Ashworth A, Swain A. Brca2 and Trp53 deficiency cooperate in the progression of mouse prostate tumourigenesis. PLoS Genet 2010; 6:e1000995. [PMID: 20585617 PMCID: PMC2891704 DOI: 10.1371/journal.pgen.1000995] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2010] [Accepted: 05/19/2010] [Indexed: 01/07/2023] Open
Abstract
Epidemiological studies have shown that one of the strongest risk factors for prostate cancer is a family history of the disease, suggesting that inherited factors play a major role in prostate cancer susceptibility. Germline mutations in BRCA2 predispose to breast and ovarian cancer with its predominant tumour suppressor function thought to be the repair of DNA double-strand breaks. BRCA2 has also been implicated in prostate cancer etiology, but it is unclear the impact that mutations in this gene have on prostate tumourigenesis. Here we have undertaken a genetic analysis in the mouse to determine the role of Brca2 in the adult prostate. We show that deletion of Brca2 specifically in prostate epithelia results in focal hyperplasia and low-grade prostate intraepithelial neoplasia (PIN) in animals over 12 months of age. Simultaneous deletion of Brca2 and the tumour suppressor Trp53 in prostate epithelia gave rise to focal hyperplasia and atypical cells at 6 months, leading to high-grade PIN in animals from 12 months. Epithelial cells in these lesions show an increase in DNA damage and have higher levels of proliferation, but also elevated apoptosis. Castration of Brca2;Trp53 mutant animals led to regression of PIN lesions, but atypical cells persisted that continued to proliferate and express nuclear androgen receptor. This study provides evidence that Brca2 can act as a tumour suppressor in the prostate, and the model we describe should prove useful in the development of new therapeutic approaches. In Western countries, prostate cancer is the most common male cancer and the second biggest cause of cancer-related deaths in men. Men with a familial history of either breast or ovarian cancer have an elevated predisposition to prostate cancer, suggesting there is a genetic element to this disease. Indeed, the inheritance of a mutated form of the breast cancer susceptibility gene BRCA2 has been linked to the development of prostate cancer, although the precise role that BRCA2 dysfunction plays in the development of prostate cancer is unclear. To address this, we have generated an animal model in which the mouse Brca2 gene is specifically deleted in the adult prostate. These mice develop precancerous prostate lesions, which progress in severity and incidence with the loss-of-function of an additional tumour suppressor, Trp53. Importantly, blocking male steroidal hormone production by castration leads to partial regression of the prostate lesions, however cells continue to proliferate after androgen withdrawal. This suggests human BRCA2 mutant prostate tumours, like the majority of prostate cancers, will respond to hormone therapy, but will relapse, as frequently occurs in this disease. In summary, our model suggests that BRCA2 acts as a tumour suppressor in the prostate and provides a pre-invasive model to test novel therapeutics.
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Affiliation(s)
- Jeffrey C. Francis
- Section of Gene Function and Regulation, Institute of Cancer Research, London, United Kingdom
| | - Afshan McCarthy
- Breakthrough Breast Cancer Research Centre, Institute of Cancer Research, London, United Kingdom
| | - Martin K. Thomsen
- Section of Gene Function and Regulation, Institute of Cancer Research, London, United Kingdom
| | - Alan Ashworth
- Breakthrough Breast Cancer Research Centre, Institute of Cancer Research, London, United Kingdom
| | - Amanda Swain
- Section of Gene Function and Regulation, Institute of Cancer Research, London, United Kingdom
- * E-mail:
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Clinical and pathological characteristics of Chinese patients with BRCA related breast cancer. THE HUGO JOURNAL 2010; 3:63-76. [PMID: 20535403 PMCID: PMC2881322 DOI: 10.1007/s11568-010-9136-z] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/07/2009] [Revised: 03/08/2010] [Accepted: 03/11/2010] [Indexed: 12/11/2022]
Abstract
Breast cancers related to BRCA mutations are associated with particular biological features. Here we report the clinical and pathological characteristics of breast cancer in Chinese women with and without BRCA mutations and of carriers of BRCA1 mutations compared to BRCA2 mutations. Two hundred and 26 high-risk Hong Kong Chinese women were tested for BRCA mutations, medical information was obtained from medical records, and risk and demographic information was obtained from personal interviews. In this cohort, 28 (12.4%) women were BRCA mutation carriers and among these carriers, 39.3% were BRCA1 and 60.7% were BRCA2 mutations. Mutation carriers were more likely to have a familial history of breast and ovarian cancer, high-grade cancers, and triple negative (TN) cancers. Prevalence of TN was 48.3% in BRCA carriers and 25.6% in non-carriers and was 67.7% in BRCA1 and 35.3% in BRCA2 carriers. Estrogen receptor (ER) negative cancer was significantly associated with BRCA1 mutations, especially in those under 40 years of age. BRCA-related breast cancer in this Chinese population is associated with family history and adverse pathological/prognostic features, with BRCA2 mutations being more prevalent but BRCA1 carriers having more aggressive and TN cancers. Compared to Caucasian populations, prevalence of BRCA2 mutations and TN cancer in BRCA2 mutation carriers in Chinese population are elevated.
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Hu SY, Liu T, Liu ZZ, Ledet E, Velasco-Gonzalez C, Mandal DM, Koochekpour S. Identification of a novel germline missense mutation of the androgen receptor in African American men with familial prostate cancer. Asian J Androl 2010; 12:336-43. [PMID: 20173765 DOI: 10.1038/aja.2010.5] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Race, family history and age are the unequivocally accepted risk factors for prostate cancer (PCa). Androgen receptor (AR)-dependent signaling is an important element in prostate carcinogenesis and its progression to metastatic disease. We examined the possibility of genomic changes in the AR in association with familial PCa in African Americans who have a higher incidence and mortality rate and a clinically more aggressive disease presentation than Caucasians. Genomic DNAs of 60 patients from 30 high-risk African American and Caucasian families participating in the Louisiana State University Health Sciences Center genetic linkage study of PCa were studied. Exon-specific polymerase-chain reaction, bi-directional automated sequencing and restriction enzyme genotyping were used to analyze for mutations in the coding region of the AR gene. We identified a germline AR (A1675T) (T559S) substitution mutation in the DNA-binding domain in three PCa-affected members of an African-American family with a history of early-onset disease. The present study describes the first AR germline mutation in an African-American family with a history of familial PCa. The AR (T559S) mutation may contribute to the disease by altering AR DNA-binding affinity and/or its response to androgens, non-androgenic steroids or anti-androgens. Additional studies will be required to define the frequency and contribution of the AR (A1675T) allele to early-onset and/or familial PCa in African Americans.
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Affiliation(s)
- Si-Yi Hu
- Stanley S Scott Cancer Center, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA
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Agalliu I, Kwon EM, Salinas CA, Koopmeiners JS, Ostrander EA, Stanford JL. Genetic variation in DNA repair genes and prostate cancer risk: results from a population-based study. Cancer Causes Control 2010; 21:289-300. [PMID: 19902366 PMCID: PMC2811225 DOI: 10.1007/s10552-009-9461-5] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2009] [Accepted: 10/22/2009] [Indexed: 01/07/2023]
Abstract
OBJECTIVE DNA repair pathways are crucial to prevent accumulation of DNA damage and maintain genomic stability. Alterations of this pathway have been reported in many cancers. An increase in oxidative DNA damage or decrease in DNA repair capacity with aging or due to germline genetic variation may affect prostate cancer risk. METHODS Pooled data from two population-based studies (1,457 cases and 1,351 controls) were analyzed to examine associations between 28 single-nucleotide polymorphisms (SNPs) in nine DNA repair genes (APEX1, BRCA2, ERCC2, ERCC4, MGMT, MUTYH, OGG1, XPC, and XRCC1) and prostate cancer risk. We also explored whether associations varied by smoking, by family history or clinical features of prostate cancer. RESULTS There were no associations between these SNPs and overall risk of prostate cancer. Risks by genotype also did not vary by smoking or by family history of prostate cancer. Although two SNPs in BRCA2 (rs144848, rs1801406) and two SNPs in ERCC2 (rs1799793, rs13181) showed stronger associations with high Gleason score or advanced-stage tumors when comparing homozygous men carrying the minor versus major allele, results were not statistically significantly different between clinically aggressive and non-aggressive tumors. CONCLUSION Overall, this study found no associations between prostate cancer and the SNPs in DNA repair genes. Given the complexity of this pathway and its crucial role in maintenance of genomic stability, a pathway-based analysis of all 150 genes in DNA repair pathways, as well as exploration of gene-environment interactions may be warranted.
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Affiliation(s)
- Ilir Agalliu
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY, USA.
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Agalliu I, Gern R, Leanza S, Burk RD. Associations of high-grade prostate cancer with BRCA1 and BRCA2 founder mutations. Clin Cancer Res 2009; 15:1112-20. [PMID: 19188187 PMCID: PMC3722558 DOI: 10.1158/1078-0432.ccr-08-1822] [Citation(s) in RCA: 95] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
PURPOSE Protein-truncating mutations in BRCA1 and in particular BRCA2 genes have been associated with prostate cancer. However, there is still uncertainty about the magnitude of association particularly with Gleason score, and family history of prostate, breast, and ovary cancers. EXPERIMENTAL DESIGN To further examine associations between three founder mutations located in BRCA1 (185delAG, 5382insC) or BRCA2 (6174delT) genes and prostate cancer, we conducted a study of 979 prostate cancer cases and 1,251 controls among Ashkenazi Jewish men. Detailed information was obtained on prostate cancer pathology, age at diagnosis, and family history of all cancers. Odds ratios (OR) and 95% confidence intervals (CIs) were estimated using logistic regression models. RESULTS Prostate cancer risk was increased (OR, 1.9; 95% CI 0.9-4.1) for BRCA2 mutation carriers but not for BRCA1 mutation carriers. BRCA2 mutation carriers had an OR of 3.2 (95% CI, 1.4-7.3) for Gleason score of 7 to 10, but no association was observed for Gleason score of < 7. Carriers of BRCA1-185delAG mutation also had an OR of 3.5 (95% CI, 1.2-10.3) for Gleason score of > or =7 tumors; however, the association of either BRCA1-185delAG or 5382insC mutation was not statistically significant. Associations between founder mutations and prostate cancer were stronger in men with no first-degree family history of breast and/or ovarian cancers but were unaffected by family history of prostate cancer. CONCLUSION These results indicate that the BRCA2 founder mutation confers a 3-fold elevated risk of high-grade prostate cancer. Although BRCA1 mutations were not associated with prostate cancer, the BRCA1-185delAG was associated with high Gleason score tumors. These findings should be carefully considered in genetic counseling and/or evaluating therapeutic options.
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Affiliation(s)
- Ilir Agalliu
- Department of Epidemiology Population Health, Albert Einstein College of Medicine, Bronx, New York
| | - Robert Gern
- Department of Epidemiology Population Health, Albert Einstein College of Medicine, Bronx, New York
| | - Suzanne Leanza
- Department of Pediatrics (Genetics), Albert Einstein College of Medicine, Bronx, New York
| | - Robert D. Burk
- Department of Epidemiology Population Health, Albert Einstein College of Medicine, Bronx, New York
- Department of Pediatrics (Genetics), Albert Einstein College of Medicine, Bronx, New York
- Department of Microbiology and Immunology, and Obstetrics, Gynecology and Women's Health, Albert Einstein College of Medicine, Bronx, New York
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Ostrander EA, Udler MS. The role of the BRCA2 gene in susceptibility to prostate cancer revisited. Cancer Epidemiol Biomarkers Prev 2008; 17:1843-8. [PMID: 18708369 DOI: 10.1158/1055-9965.epi-08-0556] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Prostate cancer is a genetically complex disease with multiple predisposing factors affecting presentation, progression, and outcome. Epidemiologic studies have long shown an aggregation of breast and prostate cancer in some families. More recently, studies have reported an apparent excess of prostate cancer cases among BRCA2 mutation-carrying families. Additionally, population-based screens of early-onset prostate cancer patients have suggested that the prevalence of deleterious BRCA2 mutations in this group is 1% to 2%, imparting a significantly increased risk of the disease compared with noncarrier cases. However, studies of high-risk prostate cancer families suggest that BRCA2 plays at most a minimal role in these individuals, highlighting the potential genetic heterogeneity of the disease. In this commentary, we review the current literature and hypotheses surrounding the relationship between BRCA2 mutations and susceptibility to prostate cancer and speculate on the potential for involvement of additional genes.
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Affiliation(s)
- Elaine A Ostrander
- Cancer Genetic Branch, National Human Genome Research Institute, NIH, Room 52451, Building 50, Bethesda, MD 20892, USA.
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42
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Agalliu I, Karlins E, Kwon EM, Iwasaki LM, Diamond A, Ostrander EA, Stanford JL. Rare germline mutations in the BRCA2 gene are associated with early-onset prostate cancer. Br J Cancer 2007; 97:826-31. [PMID: 17700570 PMCID: PMC2360390 DOI: 10.1038/sj.bjc.6603929] [Citation(s) in RCA: 78] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Studies of families who segregate BRCA2 mutations have found that men who carry disease-associated mutations have an increased risk of prostate cancer, particularly early-onset disease. A study of sporadic prostate cancer in the UK reported a prevalence of 2.3% for protein-truncating BRCA2 mutations among patients diagnosed at ages ⩽55 years, highlighting the potential importance of this gene in prostate cancer susceptibility. To examine the role of protein-truncating BRCA2 mutations in relation to early-onset prostate cancer in a US population, 290 population-based patients from King County, Washington, diagnosed at ages <55 years were screened for germline BRCA2 mutations. The coding regions, intron–exon boundaries, and potential regulatory elements of the BRCA2 gene were sequenced. Two distinct protein-truncating BRCA2 mutations were identified in exon 11 in two patients. Both cases were Caucasian, yielding a mutation prevalence of 0.78% (95% confidence interval (95%CI) 0.09–2.81%) and a relative risk (RR) of 7.8 (95%CI 1.8–9.4) for early-onset prostate cancer in white men carrying a protein-truncating BRCA2 mutation. Results suggest that protein-truncating BRCA2 mutations confer an elevated RR of early-onset prostate cancer. However, we estimate that <1% of early-onset prostate cancers in the general US Caucasian population can be attributed to these rare disease-associated BRCA2 mutations.
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Affiliation(s)
- I Agalliu
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, 1100 Fairview Avenue North, Seattle, WA 98109, USA
| | - E Karlins
- Cancer Genetics Branch, National Human Genome Research Institute, National Institutes of Health, 50 South Drive, MSC 8000, Building 50, Bethesda, MD 20892, USA
| | - E M Kwon
- Cancer Genetics Branch, National Human Genome Research Institute, National Institutes of Health, 50 South Drive, MSC 8000, Building 50, Bethesda, MD 20892, USA
| | - L M Iwasaki
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, 1100 Fairview Avenue North, Seattle, WA 98109, USA
| | - A Diamond
- Cancer Genetics Branch, National Human Genome Research Institute, National Institutes of Health, 50 South Drive, MSC 8000, Building 50, Bethesda, MD 20892, USA
- Edinburgh Molecular Genetics Service, Molecular Medicine Centre, Western General Hospital, Crewe Road, Edinburgh EH4 2XU, UK
| | - E A Ostrander
- Cancer Genetics Branch, National Human Genome Research Institute, National Institutes of Health, 50 South Drive, MSC 8000, Building 50, Bethesda, MD 20892, USA
| | - J L Stanford
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, 1100 Fairview Avenue North, Seattle, WA 98109, USA
- Department of Epidemiology, School of Public Health and Community Medicine, University of Washington, Mail Box 357236, Seattle, WA 98195, USA
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, 1100 Fairview Avenue North, M4-B874, Seattle, WA 98109, USA. E-mail:
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43
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Chung DC, Yoon SS, Lauwers GY, Patel D. Case records of the Massachusetts General Hospital. Case 22-2007. A woman with a family history of gastric and breast cancer. N Engl J Med 2007; 357:283-91. [PMID: 17634464 DOI: 10.1056/nejmcpc079016] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Daniel C Chung
- Gastroenterology Unit, Massachusetts General Hospital, USA
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44
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Rubinstein WS. Roles and responsibilities of a medical geneticist. Fam Cancer 2007; 7:5-14. [PMID: 17624600 DOI: 10.1007/s10689-007-9148-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2007] [Accepted: 05/14/2007] [Indexed: 02/06/2023]
Abstract
Medical geneticists must generate a differential diagnosis, practice evidence-based medicine, and apply ethical, legal, and social issue (ELSI) principles in the clinical setting. Several clinical scenarios are presented which illustrate dilemmas in the cancer genetics setting. These include the differential diagnosis of breast and gastric cancer, and the predicament posed by the need to practice evidence-based medicine in light of limitations in the medical genetics literature, which may mean recommending prophylactic surgery. Also discussed are three BRCA1/2 genetic testing scenarios which illustrate the difficulty of knowing where to "draw the line", i.e., when to offer testing and what level of testing to pursue. Decision-making about BRCA1/2 gene testing including Ashkenazi Jewish founder mutation testing, comprehensive reflex testing, and expedited testing, is explored. The duty to recontact as standard of care evolves requires that medical geneticists determine how to prospectively set expectations with patients as well as to decide which situations require recontact and to determine how to systematically do so. The case of patient recontact regarding new mutation detection techniques with improved sensitivity, e.g., BART testing which is based on the ability to detect large BRCA1/2 rearrangements, is discussed. General principles are highlighted so that these specific cases can be extrapolated to other genes and hereditary conditions by medical geneticists, genetic counselors, and others practicing in the field of cancer genetics.
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Affiliation(s)
- Wendy S Rubinstein
- Evanston Northwestern Healthcare Center for Medical Genetics, Evanston, IL 60201, USA.
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45
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Agalliu I, Kwon EM, Zadory D, McIntosh L, Thompson J, Stanford JL, Ostrander EA. Germline mutations in the BRCA2 gene and susceptibility to hereditary prostate cancer. Clin Cancer Res 2007; 13:839-43. [PMID: 17289875 DOI: 10.1158/1078-0432.ccr-06-2164] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE Several epidemiologic studies have reported that carriers of germline mutations in the BRCA2 gene have an increased risk of prostate cancer, with the highest risk observed in men diagnosed at earlier ages. However, studies of the contribution of BRCA2 mutations to the etiology of hereditary prostate cancer (HPC) have been inconsistent. EXPERIMENTAL DESIGN To further address this issue, 266 subjects from 194 HPC families participating in the Seattle-based Prostate Cancer Genetic Research Study were screened for BRCA2 mutations by sequencing the coding regions, intron-exon boundaries, and suspected regulatory elements of this gene. Of selected HPC families, 32 had multiple breast or ovarian cancer cases, 16 were Jewish, 8 had a pancreatic cancer case, and 138 had at least one affected man diagnosed with prostate cancer at an early age (<60 years). RESULTS No disease-associated protein truncating BRCA2 mutations were found in 266 subjects from HPC families. There were 61 DNA sequence variants, of which 31 (50.8%) changed the predicted amino acids. No associations were found between these missense changes and family characteristics. Among affected men with prostate cancer, there were no statistically significant differences between the genotype frequencies of DNA variants with a minor allele frequency of 1% or higher and between the strata defined by median age at diagnosis or by clinical features. CONCLUSION No evidence was found in this study for an association between BRCA2 mutations and susceptibility to HPC in men selected from high-risk families.
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Affiliation(s)
- Ilir Agalliu
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Department of Epidemiology, School of Public Health and Community Medicine, University of Washington, Seattle, USA
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46
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Cao L, Xu X, Cao LL, Wang RH, Coumoul X, Kim SS, Deng CX. Absence of full-length Brca1 sensitizes mice to oxidative stress and carcinogen-induced tumorigenesis in the esophagus and forestomach. Carcinogenesis 2007; 28:1401-7. [PMID: 17363841 DOI: 10.1093/carcin/bgm060] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Environmental and genetic factors are important both in affecting life span and neoplastic transformation. We have shown previously that mice, which are homozygous for full-length breast cancer-associated gene-1 (Brca1) deletion and heterozygous for a p53-null mutation (Brca1(Delta11/Delta11)p53(+/-)), display premature aging and high frequency of spontaneous lymphoma and mammary tumor formation. To investigate the role of Brca1 in regulation of organ homeostasis and susceptibility of Brca1 deficiency to environmental carcinogens, we examined biological function of Brca1 in maintaining organ homeostasis and carcinogen-induced tumorigenesis. Brca1(Delta11/Delta11)p53(+/-) mice showed altered gastrointestinal tract homeostasis, including hyperkeratosis in the esophagus and forestomach. At 6 months of age, most mutant mice displayed hyperplasia in their forestomach and esophagus, leading to dysplasia and carcinoma formation in older animals. Brca1 mutant mice exhibited increased expression of Redd1, elevated reactive oxygen species and are more sensitive to oxidative stress induced lethality. Upon methyl-N-amylnitrosamine (MNAN) treatment, 70% Brca1 mutant mice developed tumors within 4 months whereas only 14% control animals developed tumor at the same period of the time. Our further analysis revealed that the tumorigenesis is accompanied by the loss of p53 and increased expression of a number of oncogenes, including Cyclin D1, phosphorylated form of Akt, beta-catenin, Runx-2 and c-Myc. These results suggest that Brca1 is involved in renewable organ homeostasis, linking the environmental and genetic factors in carcinogenesis and aging, and providing new insights into genomic instability in organism maintenance and tumorigenesis.
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Affiliation(s)
- Liu Cao
- Genetics of Development and Diseases Branch, National Institutes of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892, USA
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Fruscalzo A, Damante G, Calcagno A, Di Loreto C, Marchesoni D. Four primary malignancies successively occurred in a BRCA2 mutation carrier: a case report. Cancer Invest 2006; 24:611-4. [PMID: 16982466 DOI: 10.1080/07357900600894872] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Carriers of BRCA2 germline mutation have a significantly increased lifetime risk of breast and ovarian cancer compared to non carriers. Several other carcinomas seem to be associated with BRCA2 mutations: pancreas, prostate, larynx, gallbladder, bile duct cancer, and malignant melanoma. We described a case of a 67-year-old BRCA2 mutation carrier of Caucasian, non-Jewish, ethnic origin who successively developed 4 primary malignancies in 30 months: breast ductal carcinoma, chronic lymphatic leukemia, ovarian serous papillary carcinoma, and endocervical adenocarcinoma. This is the first case of 4 primary malignancies in a BRCA mutation carrier, also occurred in such a short observation period. Chronic lymphatic leukemia and endocervical adenocarcinoma have not been yet associated to BRCA2 germline mutation.
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MESH Headings
- Adenocarcinoma/genetics
- Adenocarcinoma/pathology
- Adenocarcinoma/therapy
- Adult
- Aged
- BRCA2 Protein/genetics
- Breast Neoplasms/genetics
- Breast Neoplasms/pathology
- Breast Neoplasms/therapy
- Carcinoma, Ductal, Breast/genetics
- Carcinoma, Ductal, Breast/pathology
- Carcinoma, Ductal, Breast/therapy
- Cystadenocarcinoma, Papillary/genetics
- Cystadenocarcinoma, Papillary/pathology
- Cystadenocarcinoma, Papillary/therapy
- Cystadenocarcinoma, Serous/genetics
- Cystadenocarcinoma, Serous/pathology
- Cystadenocarcinoma, Serous/therapy
- Female
- Genetic Predisposition to Disease
- Germ-Line Mutation
- Humans
- Leukemia, Lymphocytic, Chronic, B-Cell/genetics
- Leukemia, Lymphocytic, Chronic, B-Cell/pathology
- Leukemia, Lymphocytic, Chronic, B-Cell/therapy
- Male
- Middle Aged
- Neoplasms, Multiple Primary/genetics
- Neoplasms, Multiple Primary/pathology
- Neoplasms, Multiple Primary/therapy
- Ovarian Neoplasms/genetics
- Ovarian Neoplasms/pathology
- Ovarian Neoplasms/therapy
- Pedigree
- Uterine Cervical Neoplasms/genetics
- Uterine Cervical Neoplasms/pathology
- Uterine Cervical Neoplasms/therapy
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Affiliation(s)
- A Fruscalzo
- Cattedra di Ginecologia ed Ostetricia, Università di Udine, Udine, Italy
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48
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Rubner Fridriksdottir AJ, Gudjonsson T, Halldorsson T, Björnsson J, Steinarsdottir M, Johannsson OT, Ogmundsdottir HM. Establishment of three human breast epithelial cell lines derived from carriers of the 999del5 BRCA2 Icelandic founder mutation. In Vitro Cell Dev Biol Anim 2006; 41:337-42. [PMID: 16448223 DOI: 10.1007/s11626-005-0005-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Germ line mutations in BRCA1 and BRCA2 account for a large proportion of inherited breast and ovarian cancer. Both genes are involved in DNA repair by homologous recombination and are thought to play a vital role in maintaining genomic stability. A major drawback for long-term functional studies of BRCA in general and BRCA2 in particular has been a lack of representative human breast epithelial cell lines. In the present study, we have established three cell lines from two patients harboring the 999del5 germ line founder mutation in the BRCA2 gene. Primary cultures were established from cellular outgrowth of explanted tissue and subsequently transfected with a retroviral construct containing the HPV-16 E6 and E7 oncogenes. Paired cancer-derived and normal-derived cell lines were established from one patient referred to as BRCA2-999del5-2T and BRCA2-999del5-2N, respectively. In addition, one cell line was derived from cancer-associated normal tissue from another patient referred to as BRCA2-999del5-1N. All three cell lines showed characteristics of breast epithelial cells as evidenced by expression of breast epithelial specific cytokeratins. Cytogenetic analysis showed marked chromosomal instability with tetraploidy and frequent telomeric associations. In conclusion, we have established three breast epithelial cell lines from two patients carrying the BRCA2 Icelandic 999del5 founder mutation. These cell lines form the basis for further studies on carcinogenesis and malignant progression of breast cancer on a defined genetic background.
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Affiliation(s)
- Agla J Rubner Fridriksdottir
- Faculty of Medicine, University of Iceland, Molecular and Cell Biology Research Laboratory, Icelandic Cancer Society, Department of Pathology, Landspitali University Hospital, Reykjavik, Iceland
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Cancer incidence in first-degree relatives of a population-based set of cases of early-onset breast cancer. Eur J Cancer 2006; 42:3034-40. [PMID: 16996259 DOI: 10.1016/j.ejca.2006.04.025] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2006] [Revised: 04/18/2006] [Accepted: 04/19/2006] [Indexed: 12/24/2022]
Abstract
Reliable determination of familial risks for cancer is important for clinical counselling, cancer prevention and understanding cancer aetiology. Family-based gene identification efforts may be targeted if the risks are well characterised and the mode of inheritance is identified. Early-onset breast cancer in a family member is a risk indicator for cancer among first-degree relatives; however, the familial risk pattern has not been assessed fully in population-based incidence studies. We estimated the risks for cancers of the breast, ovary and other sites among the first-degree relatives of 8868 patients in whom breast cancer was diagnosed before they reached the age of 50 years (diagnosed during the period 1943-1999). Population registers and parish records were used to identify 31,235 first-degree relatives, who were followed up to 31 December 2002 for occurrence of cancer by linkage to the Danish Cancer Registry. The observed incidence rates were compared with national rates adjusted for age, sex and calendar period. Overall, 39% of the 674 cases of breast cancer and 43% of the 143 cases of ovarian cancer among relatives were associated with a diagnosis of early-onset breast cancer in a family member. Among relatives under 50 years of age, the proportions were 56% and 58%, respectively, and among relatives 50 years or above the proportions were approximately 30% and 10%. In addition, a slightly but significantly increased risk for cancer of the cervix uteri was observed among relatives, and among those under 50 years of age, we found significantly increased risks for cancers of the colon and gall-bladder. In conclusion, the excess risk for breast cancer in first-degree relatives is large and remains sizable in the subgroup of female relatives aged 50 years or older, and that mutations in BRCA1/2 seem to explain only half of breast cancer cases attributable to family history.
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McAllister KA, Houle CD, Malphurs J, Ward T, Collins NK, Gersch W, Wharey L, Seely JC, Betz L, Bennett LM, Wiseman RW, Davis BJ. Spontaneous and irradiation-induced tumor susceptibility in BRCA2 germline mutant mice and cooperative effects with a p53 germline mutation. Toxicol Pathol 2006; 34:187-98. [PMID: 16546942 DOI: 10.1080/01926230600611794] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Mutations in both p53 and BRCA2 are commonly seen together in human tumors suggesting that the loss of both genes enhances tumor development. To elucidate this interaction in an animal model, mice lacking the carboxy terminal domain of Brca2 were crossed with p53 heterozygous mice. Females from this intercross were then irradiated with an acute dose of 5 Gy ionizing radiation at 5 weeks of age and compared to nonirradiated controls. We found decreased survival and timing of tumor onsets, and significantly higher overall tumor incidences and prevalence of particular tumors, including stomach tumors and squamous cell carcinomas, associated with the homozygous loss of Brca2, independent of p53 status. The addition of a p53 mutation had a further impact on overall survival, incidence of osteosarcomas and stomach tumors, and tumor latency. The spectrum of tumors observed for this Brca2 germline mouse model suggest that it faithfully recapitulates some human disease phenotypes associated with BRCA2 loss. In addition, these findings include extensive in vivo data demonstrating that germline Brca2 and p53 mutations cooperatively affect animal survivals, tumor susceptibilities, and tumor onsets.
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Affiliation(s)
- Kimberly A McAllister
- National Institute of Environmental Health Sciences, NIH, Research Triangle Park, North Carolina 27711, USA.
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