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Kanesvaran R, Chia PL, Chiong E, Chua MLK, Ngo NT, Ow S, Sim HG, Tan MH, Tay KH, Wong ASC, Wong SW, Tan PH. An approach to genetic testing in patients with metastatic castration-resistant prostate cancer in Singapore. ANNALS OF THE ACADEMY OF MEDICINE, SINGAPORE 2023; 52:135-148. [PMID: 38904491 DOI: 10.47102/annals-acadmedsg.2022372] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/22/2024]
Abstract
Introduction There has been a rapid evolution in the treatment strategies for metastatic castration-resistant prostate cancer (mCRPC) following the identification of targetable mutations, making genetic testing essential for patient selection. Although several international guidelines recommend genetic testing for patients with mCRPC, there is a lack of locally endorsed clinical practice guidelines in Singapore. Method A multidisciplinary specialist panel with representation from medical and radiation oncology, urology, pathology, interventional radiology, and medical genetics discussed the challenges associated with patient selection, genetic counselling and sample processing in mCRPC. Results A clinical model for incorporating genetic testing into routine clinical practice in Singapore was formulated. Tumour testing with an assay that is able to detect both somatic and germline mutations should be utilised. The panel also recommended the "mainstreaming" approach for genetic counselling in which pre-test counselling is conducted by the managing clinician and post-test discussion with a genetic counsellor, to alleviate the bottlenecks at genetic counselling stage in Singapore. The need for training of clinicians to provide pre-test genetic counselling and educating the laboratory personnel for appropriate sample processing that facilitates downstream genetic testing was recognised. Molecular tumour boards and multidisciplinary discussions are recommended to guide therapeutic decisions in mCRPC. The panel also highlighted the issue of reimbursement for genetic testing to reduce patient-borne costs and increase the reach of genetic testing among this patient population. Conclusion This article aims to provide strategic and implementable recommendations to overcome the challenges in genetic testing for patients with mCRPC in Singapore.
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Affiliation(s)
| | - Puey Ling Chia
- Department of Medical Oncology, Tan Tock Seng Hospital, Singapore
| | - Edmund Chiong
- Department of Urology, National University Hospital, Singapore
- Department of Surgery, National University of Singapore, Singapore
| | | | - Nye Thane Ngo
- Division of Pathology, Singapore General Hospital, Singapore
| | - Samuel Ow
- Department of Haematology-Oncology, National University Cancer Institute, Singapore
| | - Hong Gee Sim
- Ravenna Urology Clinic, Gleneagles Medical Centre, Singapore
| | | | - Kiang Hiong Tay
- Department of Vascular and Interventional Radiation, Singapore General Hospital, Singapore
| | | | | | - Puay Hoon Tan
- Division of Pathology, Singapore General Hospital, Singapore
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Guo F, Scholl M, Fuchs EL, Berenson AB, Kuo YF. BRCA testing and testing results among women 18–65 years old. Prev Med Rep 2022; 26:101738. [PMID: 35242503 PMCID: PMC8866899 DOI: 10.1016/j.pmedr.2022.101738] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 01/22/2022] [Accepted: 02/16/2022] [Indexed: 11/01/2022] Open
Abstract
BRCA testing rate increased from 2007 to 2017. Documented positive test rate was decreasing 2007 to 2017. The trend in documented positive test rate differed across races/ethnicities. It suggests of a divergent application of the same testing criteria.
Since the 1990 s discovery of BRCA1 and BRCA2 pathogenic variants in breast or ovarian cancer patients, genetic testing has been recommended as part of a targeted, individualized approach for cancer prevention and treatment in eligible individuals. The aim of this study was to assess trends in BRCA test rates and results among adult women aged 18 to 65 in the US between 2007 and 2017. Using Clinformatics© Data Mart (CDM) Electronic Health Records, we included 223,211 women 18–65 years old with documented BRCA testing results from 1/1/2007–9/30/2017. Positive results indicated the presence of pathogenic variantss. BRCA test rates increased significantly from 34 per 100,000 women in 2007 to 488 per 100,000 women in 2016 (APC 30.8, 95% confidence interval 26.6–35.1). Documented positive results decreased from 86.1% in 2007 to 78.0% in 2017(APC −0.6, 95% confidence interval −1.4–0.2). From 2007 to 2017, decreasing trends in the rates of documented positive results were observed among all three age groups (18–39, 40–54, and 55–65 years; largest in 40–54 group). In 2015–2017, women with positive test results were less likely to be non–Hispanic Whites, cancer patients, or living in the Northeast or an area with average household income ≥$50,000. Between 2007 and 2017, increasing use of BRCA testing for cancer prevention and treatment occurred, correlating to the observed decreasing documented positive test rate. The utilization of testing and corresponding test results differed significantly across races/ethnicities, suggestive of a divergent application of the same testing criteria.
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Benot-Dominguez R, Tupone MG, Castelli V, d'Angelo M, Benedetti E, Quintiliani M, Cinque B, Forte IM, Cifone MG, Ippoliti R, Barboni B, Giordano A, Cimini A. Olive leaf extract impairs mitochondria by pro-oxidant activity in MDA-MB-231 and OVCAR-3 cancer cells. Biomed Pharmacother 2020; 134:111139. [PMID: 33360155 DOI: 10.1016/j.biopha.2020.111139] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 12/10/2020] [Accepted: 12/10/2020] [Indexed: 02/07/2023] Open
Abstract
Breast and ovarian cancers are the leading and fifth reason for tumor death among females, respectively. Recently, many studies demonstrated antiproliferative activities of natural aliments in cancer. In this study, we investigated the antitumor potential of Olive Leaf Extract (OLE) in triple-negative breast and ovarian cancer cells. A HPLC/DAD analysis on OLE has been performed to assess the total polyphenolics and other secondary metabolites content. HCEpiC, MDA-MB-231, and OVCAR-3 cell lines were used. MTS, Cytofluorimetric, Western Blot analysis were performed to analyze cell viability, cell proliferation, apoptosis, and oxidative stress. Fluorimetric and IncuCyte® analyses were carried out to evaluate apoptosis and mitochondrial function. We confirmed that OLE, containing a quantity of oleuropein of 87 % of the total extract, shows anti-proliferative and pro-apoptotic activity on MDA-MB-231 cells. For the first time, our results indicate that OLE inhibits OVCAR-3 cell viability inducing cell cycle arrest, and it also increases apoptotic cell death up-regulating the protein level of cleaved-PARP and caspase 9. Moreover, our data show that OLE treatment causes a significant decrease in mitochondrial functionality, paralleled by a reduction of mitochondrial membrane potential. Interestingly, OLE increased the level of intracellular and mitochondrial reactive oxygen species (ROS) together with a decreased activity of ROS scavenging enzymes, confirming oxidative stress in both models. Our data demonstrate that mitochondrial ROS generation represented the primary mechanism of OLE antitumor activity, as pretreatment with antioxidant N-acetylcysteine prevented OLE-induced cell cycle arrest and apoptosis.
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Affiliation(s)
- Reyes Benot-Dominguez
- Department of Life, Health and Environmental Sciences, University of L'Aquila, 67100, L'Aquila, Italy.
| | - Maria Grazia Tupone
- Department of Life, Health and Environmental Sciences, University of L'Aquila, 67100, L'Aquila, Italy; Center for Microscopy, University of L'Aquila, 67100, L'Aquila, Italy.
| | - Vanessa Castelli
- Department of Life, Health and Environmental Sciences, University of L'Aquila, 67100, L'Aquila, Italy.
| | - Michele d'Angelo
- Department of Life, Health and Environmental Sciences, University of L'Aquila, 67100, L'Aquila, Italy.
| | - Elisabetta Benedetti
- Department of Life, Health and Environmental Sciences, University of L'Aquila, 67100, L'Aquila, Italy.
| | - Massimiliano Quintiliani
- Department of Life, Health and Environmental Sciences, University of L'Aquila, 67100, L'Aquila, Italy; S.I.R.E. srl, 80129, Napoli, Italy.
| | - Benedetta Cinque
- Department of Life, Health and Environmental Sciences, University of L'Aquila, 67100, L'Aquila, Italy.
| | - Iris Maria Forte
- Cell Biology and Biotherapy Unit, Istituto Nazionale Tumori-IRCCS-Fondazione G. Pascale, I-80131, Napoli, Italy.
| | - Maria Grazia Cifone
- Department of Life, Health and Environmental Sciences, University of L'Aquila, 67100, L'Aquila, Italy.
| | - Rodolfo Ippoliti
- Department of Life, Health and Environmental Sciences, University of L'Aquila, 67100, L'Aquila, Italy.
| | - Barbara Barboni
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, 64100, Teramo, Italy.
| | - Antonio Giordano
- Sbarro Institute for Cancer Research and Molecular Medicine and Center for Biotechnology, Temple University, Philadelphia, PA, 19122, USA.
| | - Annamaria Cimini
- Department of Life, Health and Environmental Sciences, University of L'Aquila, 67100, L'Aquila, Italy; Sbarro Institute for Cancer Research and Molecular Medicine and Center for Biotechnology, Temple University, Philadelphia, PA, 19122, USA.
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Guo F, Scholl M, Fuchs EL, Wong R, Kuo YF, Berenson AB. Trends in Positive BRCA Test Results Among Older Women in the United States, 2008-2018. JAMA Netw Open 2020; 3:e2024358. [PMID: 33151316 PMCID: PMC7645697 DOI: 10.1001/jamanetworkopen.2020.24358] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
IMPORTANCE Genetic testing for BRCA1/2 pathogenic variants has been used for targeted, individualized cancer prevention and treatment. A positive BRCA test result indicates a higher risk for developing BRCA-related cancers. During the past decade, testing criteria have loosened. The impact of these loosened criteria on BRCA testing in older women has not previously been studied. OBJECTIVE To assess whether the rate of positive BRCA test results changed between 2008 and 2018 among older women in the United States. DESIGN, SETTING, AND PARTICIPANTS This cross-sectional study used a 10% random sample of women 65 years of age or older from Optum's deidentified Integrated Claims-Clinical data set (2008-2018), a large national electronic health record data set. A total of 5533 women with BRCA test results from January 1, 2008, to March 31, 2018, were evaluated. MAIN OUTCOMES AND MEASURES Annual percentage change in positive BRCA test results was evaluated. Multivariable logistic regression models were used to assess the association between positive test results and race/ethnicity, region of residence, income, educational level, and personal history of breast or ovarian cancer. RESULTS Of 5533 women 65 years of age or older (mean age, 68.1 years [95% CI, 67.9-68.4 years]) who underwent BRCA testing from 2008 to 2018, most (4679 [84.6%]) were non-Hispanic White women, and 1915 (34.6%) resided in the Midwest. Positive BRCA test results decreased from 85.7% (36 of 42) in 2008 to 55.6% (140 of 252) in 2018 (annual percentage change, -2.55; 95% CI, -3.45 to -1.64). Among patients with breast or ovarian cancer, positive test results decreased from 83.3% (20 of 24) in 2008 to 61.6% (61 of 99) in 2018, while among women without breast or ovarian cancer, positive test results decreased from 87.5% (21 of 24) in 2008 to 48.4% (74 of 153) in 2018 (annual percentage change, -3.17 vs -2.49; P = .29). Women with positive test results were more likely to be non-Hispanic Black women, to live in the West or South, to live in areas with a low percentage of college graduates, or to not have a personal history of breast or ovarian cancer. CONCLUSIONS AND RELEVANCE This study suggests that there was a significantly decreasing rate of positive BRCA test results among women 65 years of age or older. Socioeconomic and regional disparities in testing use remain an issue.
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Affiliation(s)
- Fangjian Guo
- Department of Obstetrics and Gynecology, The University of Texas Medical Branch at Galveston, Galveston
- Center for Interdisciplinary Research in Women’s Health, The University of Texas Medical Branch at Galveston, Galveston
| | - Matthew Scholl
- School of Medicine, The University of Texas Medical Branch at Galveston, Galveston
| | - Erika L. Fuchs
- Department of Obstetrics and Gynecology, The University of Texas Medical Branch at Galveston, Galveston
- Center for Interdisciplinary Research in Women’s Health, The University of Texas Medical Branch at Galveston, Galveston
| | - Rebeca Wong
- Center for Interdisciplinary Research in Women’s Health, The University of Texas Medical Branch at Galveston, Galveston
- Department of Preventive Medicine and Community Health, The University of Texas Medical Branch at Galveston, Galveston
| | - Yong-Fang Kuo
- Center for Interdisciplinary Research in Women’s Health, The University of Texas Medical Branch at Galveston, Galveston
- Department of Preventive Medicine and Community Health, The University of Texas Medical Branch at Galveston, Galveston
- Office of Biostatistics, Department of Preventive Medicine and Community Health, The University of Texas Medical Branch at Galveston, Galveston
- Institute for Translational Science, The University of Texas Medical Branch at Galveston, Galveston
| | - Abbey B. Berenson
- Department of Obstetrics and Gynecology, The University of Texas Medical Branch at Galveston, Galveston
- Center for Interdisciplinary Research in Women’s Health, The University of Texas Medical Branch at Galveston, Galveston
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Alldredge J, Randall L. Germline and Somatic Tumor Testing in Gynecologic Cancer Care. Obstet Gynecol Clin North Am 2019; 46:37-53. [PMID: 30683265 DOI: 10.1016/j.ogc.2018.09.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
New technologies have advanced the science of tumor biology and genomics. Commercially available germline and somatic testing modalities have the downstream benefits of enabling prevention strategies in women with hereditary cancers and their family members in addition to identifying women who benefit most from novel targeted therapeutics. The matrix of available testing is complex and evolving. Women's health providers need to be versed in benefits and limitations of available testing. Genetic counselors play a pivotal role in interpretation of relevant mutations, and in avoiding common pitfalls, but their skill set is not sufficient to optimally integrate cancer genomics into clinical practice.
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Affiliation(s)
- Jill Alldredge
- University of California, Irvine, 333 The City Boulevard, Suite 1400, Orange, CA 92868, USA.
| | - Leslie Randall
- University of California, Irvine, 333 The City Boulevard, Suite 1400, Orange, CA 92868, USA
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Lewis KE, Lu KH, Klimczak AM, Mok SC. Recommendations and Choices for BRCA Mutation Carriers at Risk for Ovarian Cancer: A Complicated Decision. Cancers (Basel) 2018; 10:cancers10020057. [PMID: 29466291 PMCID: PMC5836089 DOI: 10.3390/cancers10020057] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Revised: 02/14/2018] [Accepted: 02/16/2018] [Indexed: 12/12/2022] Open
Abstract
Current ovarian cancer screening guidelines in high-risk women vary according to different organizations. Risk reducing surgery remains the gold standard for definitive treatment in BRCA mutation carriers, but research advancements have created more short-term options for patients to consider. The decisions involved in how a woman manages her BRCA mutation status can cause a great deal of stress and worry due to the imperfect therapy options. The goal of this review was to critically analyze the screening recommendations and alternative options for high-risk ovarian cancer patients and evaluate how these discrepancies and choices affect a woman’s management decisions.
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Affiliation(s)
- Kelsey E Lewis
- Department of Obstetrics & Gynecology, The University of Texas Medical Branch at Galveston, Galveston, TX 77555, USA.
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA.
| | - Karen H Lu
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA.
- The University of Texas Graduate School of Biomedical Sciences at Houston, Houston, TX 77030, USA.
| | - Amber M Klimczak
- Department of Obstetrics & Gynecology, The University of Texas Medical Branch at Galveston, Galveston, TX 77555, USA.
| | - Samuel C Mok
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA.
- The University of Texas Graduate School of Biomedical Sciences at Houston, Houston, TX 77030, USA.
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Guo F, Hirth JM, Lin YL, Richardson G, Levine L, Berenson AB, Kuo YF. Use of BRCA Mutation Test in the U.S., 2004-2014. Am J Prev Med 2017; 52:702-709. [PMID: 28342662 PMCID: PMC5370584 DOI: 10.1016/j.amepre.2017.01.027] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Revised: 12/09/2016] [Accepted: 01/12/2017] [Indexed: 11/16/2022]
Abstract
INTRODUCTION BRCA mutation testing has been used for screening women at high risk of breast and ovarian cancer and for selecting the best treatment for those with breast cancer. To optimize the infrastructure and medical resources allocation for genetic testing, it is important to understand the use of BRCA mutation testing in the U.S. health system. METHODS This retrospective cohort study included 53,254 adult women with insurance claims for BRCA mutation testing between 2004 and 2014 from ClinformaticsTM Data Mart Database. Data analysis was performed in 2016. This study assessed trends in the use of BRCA mutation testing in women with previously diagnosed breast or ovarian cancer and those without (unaffected women). RESULTS Between 2004 and 2014, of those receiving BRCA testing, the proportion of BRCA tests performed in unaffected women increased significantly (p<0.001), from 24.3% in 2004 to 61.5% in 2014. An increase in the proportion of BRCA tests used in unaffected women was found in each characteristic subgroup. In 2014, most subgroups had a proportion surpassing 50%, except for those aged 51-65 years and those without a family history of breast cancer. There was a much lower proportion of those aged 20-40 years among tested women with previously diagnosed breast or ovarian cancer than in unaffected women (17.6% vs 41.7%, p<0.001). CONCLUSIONS During the past decade, the role of BRCA testing has gradually shifted from being used primarily in cancer patients to being used in unaffected women in the U.S.
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Affiliation(s)
- Fangjian Guo
- Department of Obstetrics and Gynecology, University of Texas Medical Branch, Galveston, Texas; Center for Interdisciplinary Research in Women's Health, University of Texas Medical Branch, Galveston, Texas.
| | - Jacqueline M Hirth
- Department of Obstetrics and Gynecology, University of Texas Medical Branch, Galveston, Texas; Center for Interdisciplinary Research in Women's Health, University of Texas Medical Branch, Galveston, Texas
| | - Yu-Li Lin
- Center for Interdisciplinary Research in Women's Health, University of Texas Medical Branch, Galveston, Texas; Office of Biostatistics, Department of Preventive Medicine and Community Health, University of Texas Medical Branch, Galveston, Texas
| | - Gwyn Richardson
- Department of Obstetrics and Gynecology, University of Texas Medical Branch, Galveston, Texas; Center for Interdisciplinary Research in Women's Health, University of Texas Medical Branch, Galveston, Texas
| | - Lyuba Levine
- Department of Obstetrics and Gynecology, University of Texas Medical Branch, Galveston, Texas; Center for Interdisciplinary Research in Women's Health, University of Texas Medical Branch, Galveston, Texas
| | - Abbey B Berenson
- Department of Obstetrics and Gynecology, University of Texas Medical Branch, Galveston, Texas; Center for Interdisciplinary Research in Women's Health, University of Texas Medical Branch, Galveston, Texas
| | - Yong-Fang Kuo
- Center for Interdisciplinary Research in Women's Health, University of Texas Medical Branch, Galveston, Texas; Office of Biostatistics, Department of Preventive Medicine and Community Health, University of Texas Medical Branch, Galveston, Texas; Departments of Internal Medicine and Sealy Center on Aging, University of Texas Medical Branch, Galveston, Texas; Institute for Translational Science, University of Texas Medical Branch, Galveston, Texas
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Should Genetic Testing be Offered for Children? The Perspectives of Adolescents and Emerging Adults in Families with Li-Fraumeni Syndrome. J Genet Couns 2017; 26:1106-1115. [DOI: 10.1007/s10897-017-0091-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2016] [Accepted: 02/28/2017] [Indexed: 10/20/2022]
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Abstract
As the testing criteria for BRCA expand, we are identifying a greater number of young women at significant risk for breast and ovarian cancer. Fortunately, there is strong evidence to support risk reduction from mastectomy and oophorectomy. However, these surgeries come with significant psychological and physical health consequences. For breast cancer, screening with mammogram and magnetic resonance imaging may be a reasonable approach for a woman who does not desire surgery. However, there is no evidence to suggest any efficacy in screening for ovarian cancer, and women electing to not undergo surgery must have a detailed discussion with their physician regarding the risks and benefits of different management strategies. As more women are electing to undergo surgical risk reduction, providers must also be able to counsel and care for these women who will face unique health challenges after surgical menopause at a young age. A review of the current evidence behind management of the BRCA woman follows, with a focus on areas of controversy and current research.
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Cassidy MR, Méndez JE. BRCA1 and BRCA2 in Breast Cancer and Ovarian Cancer. Surg Oncol 2015. [DOI: 10.1007/978-1-4939-1423-4_6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Guan Y, Hu H, Peng Y, Gong Y, Yi Y, Shao L, Liu T, Li G, Wang R, Dai P, Bignon YJ, Xiao Z, Yang L, Mu F, Xiao L, Xie Z, Yan W, Xu N, Zhou D, Yi X. Detection of inherited mutations for hereditary cancer using target enrichment and next generation sequencing. Fam Cancer 2014; 14:9-18. [DOI: 10.1007/s10689-014-9749-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Cadiz F, Kuerer HM, Puga J, Camacho J, Cunill E, Arun B. Establishing a program for individuals at high risk for breast cancer. J Cancer 2013; 4:433-46. [PMID: 23833688 PMCID: PMC3701813 DOI: 10.7150/jca.6481] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2013] [Accepted: 05/23/2013] [Indexed: 12/13/2022] Open
Abstract
Our need to create a program for individuals at high risk for breast cancer development led us to research the available data on such programs. In this paper, we summarize our findings and our thinking process as we developed our own program. Breast cancer incidence is increasing worldwide. Even though there are known risk factors for breast cancer development, approximately 60% of patients with breast cancer have no known risk factor, although this situation will probably change with further research, especially in genetics. For patients with risk factors based on personal or family history, different models are available for assessing and quantifying risk. Assignment of risk levels permits tailored screening and risk reduction strategies. Potential benefits of specialized programs for women with high breast cancer risk include more cost -effective interventions as a result of patient stratification on the basis of risk; generation of valuable data to advance science; and differentiation of breast programs from other breast cancer units, which can result in increased revenue that can be directed to further improvements in patient care. Guidelines for care of patients at high risk for breast cancer are available from various groups. However, running a high-risk breast program involves much more than applying a guideline. Each high-risk program needs to be designed by its institution with consideration of local resources and country legislation, especially related to genetic issues. Development of a successful high-risk program includes identifying strengths, weaknesses, opportunities, and threats; developing a promotion plan; choosing a risk assessment tool; defining "high risk"; and planning screening and risk reduction strategies for the specific population served by the program. The information in this article may be useful for other institutions considering creation of programs for patients with high breast cancer risk.
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Affiliation(s)
- Fernando Cadiz
- 1. Department of Gynecology and Obstetrics, Breast Cancer Center, Clinica Alemana, Universidad del Desarrollo, Santiago, Chile
| | - Henry M. Kuerer
- 2. Department of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Julio Puga
- 1. Department of Gynecology and Obstetrics, Breast Cancer Center, Clinica Alemana, Universidad del Desarrollo, Santiago, Chile
| | - Jamile Camacho
- 1. Department of Gynecology and Obstetrics, Breast Cancer Center, Clinica Alemana, Universidad del Desarrollo, Santiago, Chile
| | - Eduardo Cunill
- 1. Department of Gynecology and Obstetrics, Breast Cancer Center, Clinica Alemana, Universidad del Desarrollo, Santiago, Chile
| | - Banu Arun
- 3. Clinical Cancer Genetics Service, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
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Petzel SV, Vogel RI, Bensend T, Leininger A, Argenta PA, Geller MA. Genetic risk assessment for women with epithelial ovarian cancer: referral patterns and outcomes in a university gynecologic oncology clinic. J Genet Couns 2013; 22:662-73. [PMID: 23677535 DOI: 10.1007/s10897-013-9598-y] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2012] [Accepted: 04/16/2013] [Indexed: 12/12/2022]
Abstract
Little is known about genetic service utilization and ovarian cancer. We identified the frequency and outcome of genetic counseling referral, predictors of referral, and referral uptake for ovarian cancer patients. Using pathology reports, we identified all epithelial ovarian cancer patients seen in a university gynecologic oncology clinic (1/04-8/06). Electronic medical records (EMR) were used to document genetic service referral, time from diagnosis-to-referral, point-in-treatment at referral, personal/family cancer history, demographics, and genetic test results. Groups were compared using chi-squared and Fisher's exact test for categorical variables and t-tests for continuous variables. The study population consisted of 376 women with ovarian cancer, 72 (19 %) of who were referred for genetic counseling/testing, primarily during surveillance. Of those referred, 42 (58 %) had personal or family genetic counseling and 34 (47 %) were ultimately tested or identified due to known family mutation. Family history and prior cancer were associated with referral. Family history, living in a larger community, higher-stage disease, and serous histology were associated with undergoing genetic counseling. Risk assessment identified 20 BRCA1/2 (5.3 %) and 1 HNPCC (0.3 %) mutation carriers. Based on recent estimates that 11.7-16.6 % of women with ovarian cancer are BRCA carriers and 2 % are HNPCC carriers, results suggest under-identification of carriers and under-utilization of genetic services by providers and patients. Interventions to increase medical providers' referrals, even in a specialized oncology clinic, are necessary and may include innovations in educating these providers using web-based methods. Ease of referral by the introduction of an electronic cancer genetic referral form represents another new direction that may increase genetic risk assessment for high-risk women with ovarian cancer.
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Affiliation(s)
- Sue V Petzel
- Department of Obstetrics, Gynecology and Women's Health, Division of Gynecologic Oncology, University of Minnesota, Minneapolis, MN, USA
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Macdonald DJ, Deri J, Ricker C, Perez MA, Ogaz R, Feldman N, Viveros LA, Paz B, Weitzel JN, Blazer KR. Closing the loop: an interactive action-research conference format for delivering updated medical information while eliciting Latina patient/family experiences and psychosocial needs post-genetic cancer risk assessment. Fam Cancer 2012; 11:449-58. [PMID: 22678665 PMCID: PMC3620038 DOI: 10.1007/s10689-012-9535-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A patient/family-centered conference was conducted at an underserved community hospital to address Latinas' post-genetic cancer risk assessment (GCRA) medical information and psychosocial support needs, and determine the utility of the action research format. Latinas seen for GCRA were recruited to a half-day conference conducted in Spanish. Content was partly determined from follow-up survey feedback. Written surveys, interactive discussions, and Audience Response System (ARS) queries facilitated the participant-healthcare professional action research process. Analyses included descriptive statistics and thematic analysis. The 71 attendees (41 patients and 27 relatives/friends) were primarily non-US born Spanish-speaking females, mean age 43 years. Among patients, 73 % had a breast cancer history; 85 % had BRCA testing (49 % BRCA+). Nearly all (96 %) attendees completed the conference surveys and ARS queries; ≥48 % participated in interactive discussions. Most (95 %) agreed that the format met their personal interests and expectations and provided useful information and resources. Gaps/challenges identified in the GCRA process included pre-consult anxiety, uncertainty about reason for referral and expected outcomes, and psychosocial needs post-GCRA, such as absorbing and disseminating risk information to relatives and concurrently coping with a recent cancer diagnosis. The combined action research and educational conference format was innovative and effective for responding to continued patient information needs and addressing an important data gap about support needs of Latina patients and family members following genetic cancer risk assessment. Findings informed GCRA process improvements and provide a basis for theory-driven cancer control research.
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Affiliation(s)
- Deborah J Macdonald
- Division of Clinical Cancer Genetics, City of Hope-an NCI-Designated Comprehensive Cancer Center, 1500 E Duarte Rd, Duarte, CA 91010, USA.
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Pocobelli G, Chubak J, Hanson N, Drescher C, Resta R, Urban N, Buist DSM. Prophylactic oophorectomy rates in relation to a guideline update on referral to genetic counseling. Gynecol Oncol 2012; 126:229-35. [PMID: 22564716 DOI: 10.1016/j.ygyno.2012.04.046] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2012] [Revised: 04/23/2012] [Accepted: 04/28/2012] [Indexed: 12/19/2022]
Abstract
OBJECTIVE We sought to determine whether prophylactic oophorectomy rates changed after the introduction of a 2007 health plan clinical guideline recommending systematic referral to a genetic counselor for women with a personal or family history suggestive of an inherited susceptibility to breast/ovarian cancer. METHODS We conducted a retrospective cohort study of female members of Group Health, an integrated delivery system in Washington State. Subjects were women aged ≥ 35 years during 2004-2009 who reported a personal or family history consistent with an inherited susceptibility to breast/ovarian cancer. Personal and family history information was collected on a questionnaire completed when the women had a mammogram. We ascertained oophorectomies from automated claims data and determined whether surgeries were prophylactic by medical chart review. Rates were age-adjusted and age-adjusted incidence rate ratios (IRR) and 95% confidence intervals (CI) were computed using Poisson regression. RESULTS Prophylactic oophorectomy rates were relatively unchanged after compared to before the guideline change, 1.0 versus 0.8/1000 person-years, (IRR=1.2; 95% CI: 0.7-2.0), whereas bilateral oophorectomy rates for other indications decreased. Genetic counseling receipt rates doubled after the guideline change (95% CI: 1.7-2.4) from 5.1 to 10.2/1000 person-years. During the study, bilateral oophorectomy rates were appreciably greater in women who saw a genetic counselor compared to those who did not regardless of whether they received genetic testing as part of their counseling. CONCLUSION A doubling in genetic counseling receipt rates lends support to the idea that the guideline issuance contributed to sustained rates of prophylactic oophorectomies in more recent years.
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Affiliation(s)
- Gaia Pocobelli
- Group Health Research Institute, 1730 Minor Ave, Suite 1600, Seattle, WA 98101-1448, USA.
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Self-reported mammography use following BRCA1/2 genetic testing may be overestimated. Fam Cancer 2011; 11:27-32. [DOI: 10.1007/s10689-011-9490-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Effect of pre-test genetic counseling for deaf adults on knowledge of genetic testing. J Genet Couns 2011; 21:256-72. [PMID: 21818696 PMCID: PMC3313024 DOI: 10.1007/s10897-011-9398-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2011] [Accepted: 07/21/2011] [Indexed: 11/24/2022]
Abstract
Empirical data on genetic counseling outcomes in the deaf population are needed to better serve this population. This study was an examination of genetics knowledge before and after culturally and linguistically appropriate pre-test genetic counseling in a diverse deaf adult sample. Individuals ≥18 years old with early-onset sensorineural deafness were offered connexin-26/30 testing and genetic counseling. Participants completed questionnaires containing 10 genetics knowledge items at baseline and following pre-test genetic counseling. The effects of genetic counseling, prior beliefs about etiology, and participant’s preferred language on genetics knowledge scores were assessed (n = 244). Pre-test genetic counseling (p = .0007), language (p < .0001), prior beliefs (p < .0001), and the interaction between counseling and beliefs (p = .035) were predictors of genetics knowledge. American Sign Language (ASL)-users and participants with “non-genetic/unknown” prior beliefs had lower knowledge scores than English-users and participants with “genetic” prior beliefs, respectively. Genetics knowledge improved after genetic counseling regardless of participants’ language; knowledge change was greater for the “non-genetic/unknown” beliefs group than the “genetic” beliefs group. ASL-users’ lower knowledge scores are consistent with evidence that ethnic and cultural minority groups have less genetics knowledge, perhaps from exposure and access disparities. Culturally and linguistically appropriate pre-test genetic counseling significantly improved deaf individuals’ genetics knowledge. Assessing deaf individuals’ prior beliefs is important for enhancing genetics knowledge.
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Bradford LS, Schorge JO. CA125 screening after risk-reducing salpingo-oophorectomy: are the titers too high, or is it all just too much? Menopause 2011; 18:123-4. [PMID: 21191312 DOI: 10.1097/gme.0b013e31820246da] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Abstract
PURPOSE As a first step toward the improvement of health insurance coverage and reimbursement for genetic services, our study characterizes the current state of health insurance coverage for genetic services in Illinois. METHODS We used a combination of surveys, interviews, and policy review to obtain data from the largest health insurers in Illinois regarding their coverage of genetic services. RESULTS The health insurance companies in this study vary widely on coverage of and attitudes toward genetic services. Policies were most consistent across insurance companies when there was widespread professional agreement regarding genetic testing, as in the case of cystic fibrosis carrier screening. Other policies, including criteria for BRCA testing, were extremely variable across insurers and did not always reflect accurate medical information. We also found that health insurance companies in Illinois seem unlikely to reimburse for services billed directly by genetic counselors. CONCLUSIONS These findings suggest several strategies for improving billing, reimbursement, and insurance coverage of genetic services, including (1) legislative amendments mandating coverage of genetic counselors' services; (2) creating consistent criteria for genetic testing; (3) increasing genetic professionals' involvement in the development of coverage policies; and (4) educating insurance companies about the value of genetic services.
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Schorge JO, Modesitt SC, Coleman RL, Cohn DE, Kauff ND, Duska LR, Herzog TJ. SGO White Paper on ovarian cancer: etiology, screening and surveillance. Gynecol Oncol 2010; 119:7-17. [PMID: 20692025 DOI: 10.1016/j.ygyno.2010.06.003] [Citation(s) in RCA: 115] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2010] [Revised: 06/02/2010] [Accepted: 06/03/2010] [Indexed: 12/19/2022]
Abstract
Ovarian cancer is a heterogeneous, rapidly progressive, highly lethal disease of low prevalence. The etiology remains poorly understood. Numerous risk factors have been identified, the most prominent involving an inherited predisposition in 10% of cases. Women with germline mutations associated with Hereditary Breast/Ovarian Cancer and Lynch syndromes have dramatically elevated risks (up to 46% and 12%, respectively). Risk-reducing salpingo-oophorectomy is the best method to prevent ovarian cancer in these high-risk women. Significant risk reduction is also seen in the general population who use oral contraceptives. Since up to 89% patients with early-stage disease have symptoms prior to diagnosis, increased awareness of the medical community may facilitate further workup in patients who otherwise would have had a delay. Despite enormous effort, there is no proof that routine screening for ovarian cancer in either the high-risk or general populations with serum markers, sonograms, or pelvic examinations decreases mortality. Further evaluation is needed to determine whether any novel biomarkers, or panels of markers, have clinical utility in early detection. Prospective clinical trials have to be designed and completed prior to offering of any of these new diagnostic tests. CA125 is currently the only biomarker recommended for monitoring of therapy as well as detection of recurrence. This commentary provides an overview on the background, screening and surveillance of ovarian cancer.
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Robson ME, Storm CD, Weitzel J, Wollins DS, Offit K. American Society of Clinical Oncology policy statement update: genetic and genomic testing for cancer susceptibility. J Clin Oncol 2010; 28:893-901. [PMID: 20065170 DOI: 10.1200/jco.2009.27.0660] [Citation(s) in RCA: 309] [Impact Index Per Article: 22.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Affiliation(s)
- Mark E Robson
- Memorial Sloan-Kettering Cancer Center, Clinical Genetics Service, Internal Box 192, 1275 York Ave, New York, NY 10065, USA
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Abstract
BACKGROUND A 49-year-old patient with high-risk prostate cancer presented to a specialist. He was treated with neoadjuvant hormonal therapy for 6 months, followed by conformal radiotherapy. Three years later, he had a biochemical recurrence and commenced continuous luteinizing hormone-releasing hormone analog and antiandrogen therapy as part of a clinical trial. Aside from notable gynecomastia, he remained asymptomatic. He has a strong family history of breast cancer with multiple sisters affected. INVESTIGATIONS At 58 years of age, the patient underwent BRCA2 germline testing and was found to be a mutation carrier. Following post-test counseling, he was offered clinical breast examination, which was unremarkable except for gynecomastia. Baseline screening mammography identified a 4 mm cluster of microcalcifications and ductal carcinoma in situ (DCIS) was confirmed by stereotactic biopsy. DIAGNOSIS DCIS in a male BRCA2 mutation carrier undergoing androgen deprivation therapy for prostate cancer. MANAGEMENT The patient was treated with bilateral mastectomy and no additional systemic therapy was recommended. This case report illustrates the importance of implementing screening mammography in male BRCA mutation carriers, particularly in those with a BRCA2 mutation.
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Panchal S, Bordeleau L, Poll A, Llacuachaqui M, Shachar O, Ainsworth P, Armel S, Eisen A, Sun P, Narod SA. Does family history predict the age at onset of new breast cancers in BRCA1 and BRCA2 mutation-positive families? Clin Genet 2009; 77:273-9. [PMID: 20002453 DOI: 10.1111/j.1399-0004.2009.01328.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Women who carry BRCA mutations are advised to begin breast cancer screening based on the age-specific risks of breast cancer development. It is not clear to what extent the family history of breast cancer influences age of onset. We evaluated the use of family history to predict the age of breast cancer onset in BRCA mutation carriers. Pedigrees from an Ontario-based registry were reviewed to identify the index case of breast cancer (most recent diagnosis) and other family cases of breast cancer. The youngest age of breast cancer diagnosis and mean age at breast cancer diagnosis in the other family cases were compared to the age of onset in the index case. The 260 BRCA1 and 213 BRCA2 pedigrees were reviewed. In BRCA2 families, the index case was diagnosed on average at 44.4 years when the youngest reported family case was less than or equal to 35 years, compared to 51.9 years when the earliest cases were diagnosed after age 50 (p = 0.04). A modest trend was seen for BRCA1 carriers, but this was not statistically significant. To a small extent, the onset of breast cancer in a BRCA2 mutation carrier can be predicted from her family history of cancer, however, the trend is modest and should not alter clinical recommendations regarding initiation of screening.
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Affiliation(s)
- S Panchal
- Marvelle Koffler Breast Centre, Mount Sinai Hospital, Canada
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A novel BRCA2 mutation that segregates with breast and prostate cancer in a Spanish family. Breast Cancer Res Treat 2009; 121:219-20. [DOI: 10.1007/s10549-009-0361-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2009] [Accepted: 02/27/2009] [Indexed: 12/19/2022]
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Aspinwall LG, Leaf SL, Dola ER, Kohlmann W, Leachman SA. CDKN2A/p16 genetic test reporting improves early detection intentions and practices in high-risk melanoma families. Cancer Epidemiol Biomarkers Prev 2008; 17:1510-9. [PMID: 18559569 DOI: 10.1158/1055-9965.epi-08-0010] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Genetic testing for melanoma has yet to enter routine clinical use because of the scarcity of available data on the effect of test reporting. A prospective study of 59 members of Utah CDKN2A/p16 mutation-positive pedigrees was conducted to establish the effect of CDKN2A/p16 genetic test reporting on melanoma early detection intentions and behaviors (total body skin examination and skin self-examination) in a high-risk population. Behavioral assessments were made at baseline, immediately after CDKN2A/p16 test reporting and counseling, and at 1-month follow-up (42 participants). Baseline screening practices were poor relative to current recommendations, especially among participants without a personal history of melanoma. Changes from baseline practice were evaluated in three groups of participants (CDKN2A/p16+ with history of melanoma, CDKN2A/p16+ without melanoma history, and CDKN2A/p16-). Across multiple measures, test reporting caused CDKN2A/p16 mutation carriers without a melanoma history to improve to the level of adherence reported by participants with a melanoma history, without decreasing compliance of the CDKN2A/p16- group. Compared with baseline, CDKN2A/p16+ participants without a melanoma history reported greater intention to obtain total body skin examinations (P < 0.0001), increased intentions and adherence to skin self-examination recommendations (P < 0.01 and P < 0.001, respectively), and increased number of body sites examined at 1 month (P < 0.002); further, 55% reported adopting a new screening behavior at follow-up. Test reporting also improved skin self-examination adherence among CDKN2A/p16- participants (P < 0.03). The finding that CDKN2A/p16 test reporting enhances compliance with early detection measures among CDKN2A/p16+ participants without diminishing the compliance of CDKN2A/p16- participants suggests a favorable risk-benefit ratio for melanoma genetic testing in high-risk patients.
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Affiliation(s)
- Lisa G Aspinwall
- Department of Psychology, University of Utah, 380 South 1530 East, Room 502, Salt Lake City, UT 84112-0251, USA.
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Mai PL, Lagos VI, Palomares MR, Weitzel JN. Contralateral risk-reducing mastectomy in young breast cancer patients with and without genetic cancer risk assessment. Ann Surg Oncol 2008; 15:3415-21. [PMID: 18836779 DOI: 10.1245/s10434-008-0160-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2008] [Revised: 08/19/2008] [Accepted: 08/20/2008] [Indexed: 12/17/2022]
Abstract
BACKGROUND Decisions regarding contralateral risk-reducing mastectomy (CRRM) among women diagnosed with unilateral breast cancer can potentially be influenced by age at diagnosis and other factors. In this study, we examined the use of CRRM before versus after genetic cancer risk assessment (GCRA) in women diagnosed with breast cancer before age 50. METHODS We conducted a retrospective analysis of women with invasive breast cancer diagnosed before age 50 who were seen for GCRA between October 1996 and March 2005. Associations between the presence of generally accepted indications for risk-reducing surgery among women who had CRRM and the timing of GCRA were examined. RESULTS The cohort included 378 women, of whom 57 had CRRM pre-GCRA and 45 had CRRM post-GCRA after a median follow-up of 26 months. Women who had CRRM pre-GCRA were more likely to not have a generally accepted indication for the procedure than those who did after GCRA (odds ratio [OR] 5.3, 95% confidence interval [95% CI] 1.6-17.8, P = .007). Women diagnosed with breast cancer before BRCA genetic testing became clinically available (1997) were more likely to have had CRRM pre-GCRA than those who were diagnosed more recently (OR 2.9, 95% CI 1.6-5.2, P = .0003). CONCLUSION When personal and family history was carefully examined, a substantial proportion of women seen in our clinic did not have a clear indication for CRRM. Decreased use of empiric CRRM among women diagnosed after 1997 may indicate increased awareness and use of GCRA. Thus, judicious application of GCRA may help focus use of surgical risk reduction measures to the most risk-appropriate patients.
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Affiliation(s)
- Phuong L Mai
- Department of Clinical Cancer Genetics, City of Hope National Medical Center, Duarte, CA, USA.
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Influence of genetic discrimination perceptions and knowledge on cancer genetics referral practice among clinicians. Genet Med 2008; 10:691-8. [DOI: 10.1097/gim.0b013e3181837246] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Allain DC. Genetic counseling and testing for common hereditary breast cancer syndromes: a paper from the 2007 William Beaumont hospital symposium on molecular pathology. J Mol Diagn 2008; 10:383-95. [PMID: 18687797 PMCID: PMC2518733 DOI: 10.2353/jmoldx.2008.070161] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/23/2008] [Indexed: 12/14/2022] Open
Abstract
Throughout the past 15 years, the identification of several genes associated with hereditary breast cancer has fueled the growth of clinical genetic counseling and testing services. In addition, increased knowledge of the genetic and molecular pathways of the known hereditary breast cancer genes, as well as an increased understanding of the impact of testing on individuals has added to the ability to identify, manage, and provide psychosocial support for mutation carriers. This review provides an overview of the clinical features, cancer risks, causative genes, and management for hereditary breast and ovarian cancer syndrome, Cowden syndrome, and Li-Fraumeni syndrome. This article summarizes the genetic counseling process and genetic test result interpretation, including a review of the key elements involved in the provision of risk assessment and informed consent, as well as a review of the risks, benefits, and limitations of cancer susceptibility genetic testing.
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Affiliation(s)
- Dawn C Allain
- Clinical Cancer Genetics Program, Human Cancer Genetics Program, Department of Internal Medicine, Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, The Ohio State University, Columbus, OH 43210, USA.
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Risk-reducing total gastrectomy for germline mutations in E-cadherin (CDH1): pathologic findings with clinical implications. Am J Surg Pathol 2008; 32:799-809. [PMID: 18391748 DOI: 10.1097/pas.0b013e31815e7f1a] [Citation(s) in RCA: 100] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Hereditary diffuse gastric cancer is a rare autosomal dominant cancer susceptibility syndrome caused by germline E-cadherin (CDH1) mutations in 40% of cases with a high degree of penetrance. Screening endoscopy has not been useful in identifying early cancer, in part owing to conflicting data concerning site(s) of involvement in the stomach and the lack of endoscopically detectable pathology. Risk-reducing total gastrectomy specimens from 8 asymptomatic adults with germline mutations in the CDH1 gene (3 different pedigrees) were studied using a sequential serial sectioning protocol with submission of the entire stomach for histologic analysis. The presence, size, and distribution of signet ring cell clusters were determined for each section and geographic maps of the invasive foci were constructed and compared with gastrectomy specimens from patients with germline E-cadherin mutation and symptomatic gastric cancer. All but 1 of the asymptomatic patients with germline mutations in the CDH1 gene had negative endoscopic screening. All risk-reducing gastrectomy specimens were macroscopically normal. All contained multiple foci (mean, 10.9) of microscopic intramucosal signet ring cell carcinoma confined to the superficial gastric mucosa; no invasion of submucosa was identified. In situ carcinoma was present in 6/8 cases. The majority of signet ring foci were located in the proximal one third of the stomach, most within oxyntic-type mucosa. The number and size of foci were not related to age, but there was a trend toward more severe disease burden in women. Stomachs from the symptomatic group of patients with germline CDH1 mutations exhibited infiltrative foci with higher Ki-67 labeling that extended well beyond the superficial mucosa. In addition, while superficial signet ring cancer exhibited decreased or absent E-cadherin and beta-catenin protein expression in all cases studied, deeply invasive signet ring cancer showed reversion to E-cadherin and beta-catenin protein expression in a subset of mutation carriers. Our study indicates that superficial intramucosal signet ring carcinoma, although widespread, is predominantly located in the proximal one third of the stomach in patients with E-cadherin gene mutations. The observed site predilection suggests a possible role for geographically targeted endoscopic surveillance biopsy in patients who elect to delay surgical intervention.
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MacDonald DJ, Sarna L, van Servellen G, Bastani R, Giger JN, Weitzel JN. Selection of family members for communication of cancer risk and barriers to this communication before and after genetic cancer risk assessment. Genet Med 2008; 9:275-82. [PMID: 17505204 DOI: 10.1097/gim.0b013e31804ec075] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
PURPOSE The impact of genetic cancer risk assessment on communication of cancer risk information within families is not fully known. We compared women's selection of family members for cancer risk communication and perceived barriers to this communication before genetic cancer risk assessment and 6 months afterward. METHODS Mailed surveys were used to collect prospective data from consenting women undergoing genetic cancer risk assessment because of a personal and/or family history of breast or ovarian cancers. Analysis included descriptive statistics, chi-square and McNemar tests, and paired t tests. RESULTS A total of 122 women met the study criteria. Although risk communications increased with first-degree relatives (84%-90% for females; 53%-62% for males) and decreased with non-first-degree relatives (21%-9%) before and after genetic cancer risk assessment, the degree of change was nonsignificant. The most commonly cited communication barrier was loss of contact (30%). Demographics, personal or family cancer history, and BRCA status did not significantly influence findings. CONCLUSIONS There was a high degree of cancer risk communications with female first-degree relatives, but less so with male first-degree relatives, both before and after genetic cancer risk assessment. For the majority of women, interpersonal barriers did not preclude risk discussions. Further research is needed to identify how best to facilitate risk communication.
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Affiliation(s)
- Deborah J MacDonald
- Clinical Cancer Genetics Department, City of Hope Cancer Center, Duarte, California 91010-3000, USA.
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Affiliation(s)
- Boris Pasche
- Department of Medicine, Robert H. Lurie Comprehensive Cancer Center, Northwestern University Cancer Genetics Program, Chicago, IL 60611, USA
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Long term physical sequelae after adult-onset cancer. J Cancer Surviv 2007; 2:3-11. [DOI: 10.1007/s11764-007-0039-5] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2007] [Accepted: 11/09/2007] [Indexed: 12/30/2022]
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Weitzel JN, Buys SS, Sherman WH, Daniels A, Ursin G, Daniels JR, MacDonald DJ, Blazer KR, Pike MC, Spicer DV. Reduced mammographic density with use of a gonadotropin-releasing hormone agonist-based chemoprevention regimen in BRCA1 carriers. Clin Cancer Res 2007; 13:654-8. [PMID: 17255289 DOI: 10.1158/1078-0432.ccr-06-1902] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE Women with a BRCA1 mutation (BRCA1(mut)) need risk reduction options beyond mastectomy and oophorectomy. We evaluated the efficacy, safety, and tolerability of hormonal chemoprevention with a gonadotropin-releasing hormone agonist (GnRHA) with low-dose add-back steroids in BRCA1(mut) carriers. EXPERIMENTAL DESIGN The 12-month open label clinical trial used the GnRHA deslorelin, ultra-low-dose estradiol (E(2)), and replacement testosterone, administered via daily intranasal spray in premenopausal women with a BRCA1(mut), and intermittent oral medroxyprogesterone acetate. The end points included mammographic percent density, bone mineral density, endometrial hyperplasia, symptom inventory, and quality of life (Medical Outcomes SF-36 survey). RESULTS Six of eight BRCA1(mut) women (mean age, 30.3 years; range, 25-36 years) completed the study. Mammographic percent density was significantly reduced at 12 months (median absolute mammographic percent density decrease, 8.3%; P = 0.043), representing a 29.2% median reduction in mammographic percent density. Bone mineral density remained within reference limits for all participants; there were no cases of atypical endometrial hyperplasia and menses resumed within a median of 67 days (range, 35-110 days) after last drug treatment day. The treatment was well tolerated; hypoestrogenic side effects were minimal and transient; and there were no significant changes in quality of life. CONCLUSIONS The GnRHA deslorelin, with low-dose add-back steroids, was well tolerated and significantly decreased mammographic percent density in BRCA1(mut) carriers. This regimen may reduce breast cancer risk and improve the usefulness of mammographic surveillance by reducing density. This is the first demonstration, to our knowledge, of a direct reduction of mammographic densities in young BRCA1(mut) carriers.
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Affiliation(s)
- Jeffrey N Weitzel
- Department of Clinical Cancer Genetics, City of Hope Cancer Center, 1500 East Duarte Road, Duarte, CA 91010, USA.
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Abstract
OBJECTIVES To provide a basic overview of genetics, focusing on breast and ovarian cancer susceptibility mutations on BRCA1 and BRCA2. DATA SOURCES Research and review articles and government internet sites. CONCLUSION The advances in molecular biology has enabled health care providers to be proactive rather than reactive in predicting some cancers and offering prevention strategies to greatly reduce the risk of developing cancer. Our expanding knowledge base of genetics may one day provide tailored treatment, and predict recurrence rates for all cancers. IMPLICATIONS FOR NURSING PRACTICE The science of genetics will impact every aspect of health care, from primary care to specialized care. Nurses are on the front line and will be expected to recognize patterns of disease that may indicate a possible genetic link, educate the family about the implications of a potential genetic susceptibility and refer the family for counseling. To accomplish this, each nurse should have a minimum basic knowledge of genetics, and formal education for those who educate and counsel.
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Ricker C, Lagos V, Feldman N, Hiyama S, Fuentes S, Kumar V, Gonzalez K, Palomares M, Blazer K, Lowstuter K, MacDonald D, Weitzel J. If We Build It … Will They Come? – Establishing a Cancer Genetics Services Clinic for an Underserved Predominantly Latina Cohort. J Genet Couns 2006; 15:505-14. [PMID: 17106633 DOI: 10.1007/s10897-006-9052-5] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
BACKGROUND Cancer genetic counseling and testing is a standard of care option for appropriate families and can identify individuals at increased risk prior to diagnosis, when prevention or detection strategies are most effective. Despite documented efficacy of cancer risk reduction in high-risk individuals, underserved and minority individuals have a disproportionate cancer burden and limited access to genetic counseling. METHODS A needs assessment survey documented gaps in knowledge and interest in prevention. Satellite clinics were established at two indigent healthcare systems. Cancer genetics CME lectures were conducted and referral guidelines disseminated to clinicians who referred patients for counseling. RESULTS An increase in clinician knowledge was demonstrated post-CME and reflected by quality referrals. Eighty-eight percent of patients kept their appointments. In the predominantly Latina(6) (n=77) clinic population, 71.4% were affected with cancer, and 17 mutation positive families were identified. Preliminary data shows a positive impact on patients' motivation and behavior. The majority has expressed satisfaction and reduction in anxiety. CONCLUSIONS This study demonstrates feasibility and acceptability of cancer genetics services in this population, suggesting the potential to reduce cancer morbidity in underserved, high-risk families.
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Affiliation(s)
- Charité Ricker
- City of Hope Comprehensive Cancer Center, Clinical Cancer Genetics, Duarte, CA, USA
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MacDonald DJ, Sand S, Kass F, Blazer KR, Congleton J, Craig J, Weitzel JN. The Power of Partnership: Extending Comprehensive Cancer Center Expertise in Clinical Cancer Genetics to Community Breast Care Centers. ACTA ACUST UNITED AC 2006. [DOI: 10.1053/j.sembd.2006.10.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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