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Guan Y, McBride CM, Pathak S, Gornick MC. Just Dissemination of Genomics-Informed Public Health Applications: Time to Deepen Our Public Engagement Approaches. Public Health Genomics 2023; 26:165-170. [PMID: 37703856 PMCID: PMC10614502 DOI: 10.1159/000534080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Accepted: 09/08/2023] [Indexed: 09/15/2023] Open
Affiliation(s)
- Yue Guan
- Department of Behavioral, Social, and Health Education Sciences, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Colleen M McBride
- Department of Behavioral, Social, and Health Education Sciences, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Sarita Pathak
- Department of Behavioral, Social, and Health Education Sciences, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Michele C Gornick
- Department of Behavioral, Social, and Health Education Sciences, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
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2
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Iwai Y, Toumbou K, Zuze T, Morgan JS, Simwinga L, Wright ST, Fedoriw Y, Oladeru OT, Balogun OD, Roberson ML, Olopade OI, Tomoka T, Elmore SN. Breast Cancer Germline Genetic Counseling and Testing for Populations of African Heritage Globally: A Scoping Review on Research, Practice, and Bioethical Considerations. JCO Glob Oncol 2023; 9:e2300154. [PMID: 37944088 PMCID: PMC10645409 DOI: 10.1200/go.23.00154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 07/05/2023] [Accepted: 09/05/2023] [Indexed: 11/12/2023] Open
Abstract
PURPOSE Despite the disproportionately high risk of breast cancer among women of African heritage, little is known about the facilitators and barriers to implementing germline genetic testing and counseling (GT/C). METHODS This scoping review followed guidelines recommended by the Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for scoping reviews. Published manuscripts from database inception through 2021 were sourced from PubMed, Cumulative Index to Nursing and Allied Health Literature via EBSCO, Embase, Cochrane Library, and Scopus. Search terms were used to retrieve articles addressing (1) African heritage, (2) breast cancer, and (3) GT or GC. The screening involved abstract and title review and full-text review. Data were extracted for all articles meeting the inclusion criteria. RESULTS A total of 154 studies were included. Most studies that took place were conducted in the United States (71.4%), and most first authors (76.9%) were from the United States. GT was conducted in 73 (49.7%) studies. BRCA1/BRCA2 were the most commonly studied genes for germline mutations. GC was conducted in 49 studies (33.3%), and perspectives on GC were evaluated in 43 (29.3%). The use of racial/ethnic categories varied broadly, although African American was most common (40.1%). Racism was mentioned in three studies (2.0%). CONCLUSION There is a growing body of literature on GT/C for breast cancer in women of African heritage. Future studies on GT/C of African populations should consider increased clarity around racial/ethnic categorizations, continued community engagement, and intentional processes for informed consent.
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Affiliation(s)
- Yoshiko Iwai
- University of North Carolina School of Medicine, Chapel Hill, NC
| | | | | | - Jenny S. Morgan
- Department of Medicine, University of North Carolina School of Medicine, Chapel Hill, NC
- Department of Clinical Medicine, Indiana University School of Medicine, Indianapolis, IN
- Department of Global Health, Indiana University School of Medicine, Indianapolis, IN
| | | | - Sarah T. Wright
- UNC Health Sciences Library, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Yuri Fedoriw
- Department of Pathology and Laboratory Medicine, University of North Carolina School of Medicine, Chapel Hill, NC
| | - Oluwadamilola T. Oladeru
- Department of Radiation Oncology, University of Florida, Gainesville, FL
- Department of Radiation Oncology, Mayo Clinic in Florida, Jacksonville, FL
| | | | - Mya L. Roberson
- Department of Health Policy, University of North Carolina Gillings School of Global Public Health, Chapel Hill, NC
| | | | | | - Shekinah N.C. Elmore
- Department of Radiation Oncology, University of North Carolina School of Medicine, Chapel Hill, NC
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3
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Guan Y, Pathak S, Ballard D, Veluswamy JK, McCullough LE, McBride CM, Gornick MC. Testing a deliberative democracy method with citizens of African ancestry to weigh pros and cons of targeted screening for hereditary breast and ovarian cancer risk. Front Public Health 2022; 10:984926. [PMID: 36424974 PMCID: PMC9679525 DOI: 10.3389/fpubh.2022.984926] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Accepted: 10/14/2022] [Indexed: 11/09/2022] Open
Abstract
Background Democratic deliberation (DD), a strategy to foster co-learning among researchers and communities, could be applied to gain informed public input on health policies relating to genomic translation. Purpose We evaluated the quality of DD for gaining informed community perspectives regarding targeting communities of African Ancestry (AAn) for Hereditary Breast and Ovarian Cancer (HBOC) screening in Georgia. Methods We audiotaped a 2.5 day conference conducted via zoom in March 2021 to examine indicators of deliberation quality based on three principles: (1) inclusivity (diverse viewpoints based on participants' demographics, cancer history, and civic engagement), (2) consideration of factual information (balanced and unbiased expert testimonies, participant perceived helpfulness), and (3) deliberation (speaking opportunities, adoption of a societal perspective on the issue, reasoned justification of ideas, and participant satisfaction). Results We recruited 24 participants who reflected the diversity of views and life experiences of citizens of AAn living in Georgia. The expert testimony development process we undertook for creating balanced factual information was endorsed by experts' feedback. Deliberation process evaluation showed that while participation varied (average number of statements = 24, range: 3-62), all participants contributed. Participants were able to apply expert information and take a societal perspective to deliberate on the pros and cons of targeting individuals of AAn for HBOC screening in Georgia. Conclusions The rigorous process of public engagement using deliberative democracy approach can successfully engage a citizenry with diverse and well-informed views, do so in a relatively short time frame and yield perspectives based on high quality discussion.
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Affiliation(s)
- Yue Guan
- Department of Behavioral, Social, and Health Education Sciences, Rollins School of Public Health, Emory University, Atlanta, GA, United States,*Correspondence: Yue Guan
| | - Sarita Pathak
- Department of Behavioral, Social, and Health Education Sciences, Rollins School of Public Health, Emory University, Atlanta, GA, United States
| | - Denise Ballard
- Department of Behavioral, Social, and Health Education Sciences, Rollins School of Public Health, Emory University, Atlanta, GA, United States,Winship Cancer Institute of Emory University, Atlanta, GA, United States
| | | | - Lauren E. McCullough
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA, United States
| | - Colleen M. McBride
- Department of Behavioral, Social, and Health Education Sciences, Rollins School of Public Health, Emory University, Atlanta, GA, United States
| | - Michele C. Gornick
- Department of Behavioral, Social, and Health Education Sciences, Rollins School of Public Health, Emory University, Atlanta, GA, United States
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4
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Raff JP, Cook B, Jafri FN, Boxer N, Maldonado J, Hopkins U, Roayaie S, Noyer C. Successful Pancreatic Cancer Screening Among Individuals at Elevated Risk Using Endoscopic Ultrasound and Magnetic Resonance Imaging: A Community Hospital Experience. Pancreas 2022; 51:1345-1351. [PMID: 37099777 DOI: 10.1097/mpa.0000000000002182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
Abstract
OBJECTIVES Guidelines for testing individuals at risk (IAR) for developing pancreatic duct adenocarcinoma (PC) are being advanced from university hospital populations. We implemented a screen-in criteria and protocol for IAR for PC in our community hospital setting. METHODS Eligibility was based on germline status and/or family history of PC. Longitudinal testing continued, alternating between endoscopic ultrasound (EUS) and magnetic resonance imaging (MRI). The primary objective was to analyze pancreatic conditions and their associations with risk factors. The secondary objective was to evaluate the outcomes and complications resulting from testing. RESULTS Over 93 months, 102 individuals completed baseline EUS, and 26 (25%) met defined endpoints of any abnormal findings in the pancreas. Average enrollment was 40 months, and all participants with endpoints continued standard surveillance. Two participants (1.8%) had endpoint findings requiring surgery for premalignant lesions. Increasing age predicted for endpoint findings. Analysis of longitudinal testing suggested reliability between the EUS and MRI results. CONCLUSIONS In our community hospital population, baseline EUS was effective in identifying the majority of findings; advancing age correlated with a greater chance of abnormalities. No differences were observed between EUS and MRI findings. Screening programs for PC among IAR can be successfully performed in the community setting.
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Affiliation(s)
- Joshua Peter Raff
- From the Section of Medical Oncology, White Plains Hospital, White Plains
| | - Brennan Cook
- RWJMS Rutgers Robert Wood Johnson School of Medicine, New Brusnwick, NJ
| | | | | | | | - Una Hopkins
- Department of Nursing, Montefiore Medical Center, Bronx
| | | | - Charles Noyer
- Section of Gastroenterology, White Plains Hospital, White Plains, NY
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5
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McDonald JT, Ricks-Santi LJ. Hereditary variants of unknown significance in African American women with breast cancer. PLoS One 2022; 17:e0273835. [PMID: 36315513 PMCID: PMC9621418 DOI: 10.1371/journal.pone.0273835] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 08/17/2022] [Indexed: 11/06/2022] Open
Abstract
Expanded implementation of genetic sequencing has precipitously increased the discovery of germline and somatic variants. The direct benefit of identifying variants in actionable genes may lead to risk reduction strategies such as increased surveillance, prophylactic surgery, as well as lifestyle modifications to reduce morbidity and mortality. However, patients with African ancestry are more likely to receive inconclusive genetic testing results due to an increased number of variants of unknown significance decreasing the utility and impact on disease management and prevention. This study examines whole exome sequencing results from germline DNA samples in African American women with a family history of cancer including 37 cases that were diagnosed with breast cancer and 51 family members. Self-identified ancestry was validated and compared to the 1000 genomes population. The analysis of sequencing results was limited to 85 genes from three clinically available common genetic screening platforms. This target region had a total of 993 variants of which 6 (<1%) were pathogenic or likely pathogenic, 736 (74.1%) were benign, and 170 (17.1%) were classified as a variant of unknown significance. There was an average of 3.4±1.8 variants with an unknown significance per individual and 85 of 88 individuals (96.6%) harbored at least one of these in the targeted genes. Pathogenic or likely pathogenic variants were only found in 6 individuals for the BRCA1 (p.R1726fs, rs80357867), BRCA2 (p.K589fs, rs397507606 & p.L2805fs, rs397507402), RAD50 (p.E995fs, rs587780154), ATM (p.V2424G, rs28904921), or MUTYH (p.G396D, rs36053993) genes. Strategies to functionally validate the remaining variants of unknown significance, especially in understudied and hereditary cancer populations, are greatly needed to increase the clinical utility and utilization of clinical genetic screening platforms to reduce cancer incidence and mortality.
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Affiliation(s)
- J. Tyson McDonald
- Department of Radiation Medicine, Georgetown University School of Medicine, Washington, DC, United States of America
| | - Luisel J. Ricks-Santi
- Cancer Research Center, Hampton University, Hampton, VA, United States of America
- Department of Pharmacotherapy and Translational Research, College of Medicine, University of Florida, Gainesville, FL, United States of America
- * E-mail:
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6
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Ademuyiwa FO, Salyer P, Tao Y, Luo J, Hensing WL, Afolalu A, Peterson LL, Weilbaecher K, Housten AJ, Baumann AA, Desai M, Jones S, Linnenbringer E, Plichta J, Bierut L. Genetic Counseling and Testing in African American Patients With Breast Cancer: A Nationwide Survey of US Breast Oncologists. J Clin Oncol 2021; 39:4020-4028. [PMID: 34662201 DOI: 10.1200/jco.21.01426] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
PURPOSE To determine if physicians' self-reported knowledge, attitudes, and practices regarding genetic counseling and testing (GCT) vary by patients' race. METHODS We conducted a nationwide 49-item survey among breast oncology physicians in the United States. We queried respondents about their own demographics, clinical characteristics, knowledge, attitudes, practices, and perceived barriers in providing GCT to patients with breast cancer. RESULTS Our survey included responses from 277 physicians (females, 58.8%; medical oncologists, 75.1%; academic physicians, 61.7%; and Whites, 67.1%). Only 1.8% indicated that they were more likely to refer a White patient than refer an African American patient for GCT, and 66.9% believed that African American women with breast cancer have lower rates of GCT than White women. Regarding perceived barriers to GCT, 63.4% of respondents indicated that African American women face more barriers than White women do and 21% felt that African American women require more information and guidance during the GCT decision-making process than White women. Although 32% of respondents indicated that lack of trust was a barrier to GCT in all patients, 58.1% felt that this was a greater barrier for African American women (P < .0001). Only 13.9% believed that noncompliance with GCT is a barrier for all patients, whereas 30.6% believed that African American women are more likely than White women to be noncompliant (P < .0001). CONCLUSION We demonstrated that racial differences exist in oncology physicians' perceived barriers to GCT for patients with breast cancer. This nationwide survey will serve as a basis for understanding physicians' determinants of GCT for African American women and highlights the necessity of education and interventions to address bias among physicians. Awareness of such physician biases can enable further work to address inequities, ultimately leading to improved GCT equity for African American women with breast cancer.
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Affiliation(s)
- Foluso O Ademuyiwa
- Department of Medicine, Washington University School of Medicine, St Louis, MO
| | - Patricia Salyer
- Department of Psychiatry, Washington University School of Medicine, St Louis, MO
| | - Yu Tao
- Department of Surgery, Division of Public Health Sciences, Washington University School of Medicine, St Louis, MO.,Siteman Cancer Center Biostatistics Shared Resource, Washington University School of Medicine, St Louis, MO
| | - Jingqin Luo
- Department of Surgery, Division of Public Health Sciences, Washington University School of Medicine, St Louis, MO.,Siteman Cancer Center Biostatistics Shared Resource, Washington University School of Medicine, St Louis, MO
| | - Whitney L Hensing
- Department of Medicine, Washington University School of Medicine, St Louis, MO
| | | | - Lindsay L Peterson
- Department of Medicine, Washington University School of Medicine, St Louis, MO
| | | | - Ashley J Housten
- Department of Surgery, Division of Public Health Sciences, Washington University School of Medicine, St Louis, MO
| | - Ana A Baumann
- Brown School at Washington University in St Louis, St Louis, MO
| | - Monica Desai
- Houston Methodist Oncology Partners, Houston, TX
| | - Susan Jones
- Division of Genetics and Genomic Medicine, Washington University School of Medicine, St Louis, MO
| | - Erin Linnenbringer
- Department of Surgery, Division of Public Health Sciences, Washington University School of Medicine, St Louis, MO
| | - Jennifer Plichta
- Department of Surgery, Duke University School of Medicine, Durham, NC
| | - Laura Bierut
- Department of Psychiatry, Washington University School of Medicine, St Louis, MO
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7
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Wang F, Zheng W, Bailey CE, Mayer IA, Pietenpol JA, Shu XO. Racial/Ethnic Disparities in All-Cause Mortality among Patients Diagnosed with Triple-Negative Breast Cancer. Cancer Res 2021; 81:1163-1170. [PMID: 33272926 PMCID: PMC10571320 DOI: 10.1158/0008-5472.can-20-3094] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 11/11/2020] [Accepted: 11/30/2020] [Indexed: 11/16/2022]
Abstract
It is unclear whether racial/ethnic disparities in triple-negative breast cancer (TNBC) mortality remain after accounting for clinical characteristics, treatment, and access-to-care-related factors. In this study, women with a primary diagnosis of TNBC during 2010-2014 were identified from the National Cancer Database. Hazard ratios (HR) and 95% confidence intervals (CI) for 3- and 5-year all-cause mortality associated with race/ethnicity were estimated using Cox proportional hazards models with stepwise adjustments for age, clinical characteristics, treatment, and access-to-care-related factors. Of 78,708 patients, non-Hispanic (NH) black women had the lowest 3-year overall survival rates (79.4%), followed by NH-whites (83.1%), Hispanics (86.0%), and Asians (87.1%). After adjustment for clinical characteristics, NH-blacks had a 12% higher risk of dying 3 years post-diagnosis (HR, 1.12; 95% CI, 1.07-1.17), whereas Hispanics and Asians had a 24% (HR, 0.76; 95% CI, 0.70-0.83) and 17% (HR, 0.83; 95% CI, 0.73-0.94) lower risk than their NH-white counterparts. The black-white disparity became non-significant after combined adjustment for treatment and access-to-care-related factors (HR, 1.04; 95% CI, 0.99-1.09), whereas the white-Hispanic and white-Asian differences remained. Stratified analyses revealed that among women aged less than or equal to 50 with stage III cancer, the elevated risk among NH-blacks persisted (HR, 1.20; 95% CI, 1.04-1.39) after full adjustments. Similar results were seen for 5-year mortality. Overall, clinical characteristics, treatment, and access-to-care-related factors accounted for most of the white-black differences in all-cause mortality of TNBC but explained little about Hispanic- and Asian-white differences. SIGNIFICANCE: These findings highlight the need for equal healthcare to mitigate the black-white disparity and for investigations of contributors beyond healthcare for lower mortality among Asians and Hispanics.
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Affiliation(s)
- Fei Wang
- Division of Epidemiology, Department of Medicine, Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, Tennessee
- Department of Breast Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, PR China
| | - Wei Zheng
- Division of Epidemiology, Department of Medicine, Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Christina E Bailey
- Division of Surgical Oncology and Endocrine Surgery, Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Ingrid A Mayer
- Division of Hematology/Oncology, Breast Cancer Program, Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Jennifer A Pietenpol
- Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Xiao-Ou Shu
- Division of Epidemiology, Department of Medicine, Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, Tennessee.
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8
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Ye F, He M, Huang L, Lang G, Hu X, Shao Z, Di G, Cao A. Insights Into the Impacts of BRCA Mutations on Clinicopathology and Management of Early-Onset Triple-Negative Breast Cancer. Front Oncol 2021; 10:574813. [PMID: 33505905 PMCID: PMC7829963 DOI: 10.3389/fonc.2020.574813] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Accepted: 11/24/2020] [Indexed: 12/27/2022] Open
Abstract
Background Little is known regarding the clinicopathologic characteristics, oncologic outcomes, and treatment strategies that could be ascribed to BRCA mutation in early-onset triple-negative breast cancer (eTNBC). Methods eTNBC patients who underwent BRCA genetic testing were derived from our clinical database between 2012 and 2018. Differences in clinical features and pathologic characteristics were examined in groups divided by BRCA mutation status, and the contribution of germline mutations in conjunction with treatment modalities to survival outcomes was determined. Results Of the 355 qualifying eTNBC patients, 67 (18.87%) were BRCA mutated and 288 (81.13%) were BRCA wild. Overall, median age at diagnosis was 34 years (range, 24-40 years) in the BRCA mutated subgroup and 35 years (range, 21-40 years) in BRCA wild. The majority of clinicopathologic parameters were parallel; however, tumor size (P = 0.07) and nuclear grade (P =0.08) tend to be more aggressive in the BRCA mutated subgroup. Compared with BRCA wild patients, BRCA mutated patients had a higher likelihood of receiving anthracyclines and taxane-based combination chemotherapy (P = 0.04) and tend to be lower tumor burden (P =0.01). After approximately 5-year median follow-up, the overall survival (OS) (P = 0.021) and breast cancer-specific survival (BCSS) (P = 0.004) in BRCA mutated patients were superior to those in their BRCA wild counterparts. Intriguingly, the clinical outcomes were comparable in patients with breast conserving surgery (BCS) regardless of BRCA mutations and in patients with BRCA mutations in spite of surgical schedules. Conclusions These results suggest that eTNBC patients with BRCA mutations are prone to better OS and BCSS, which might be largely attributed to more benefit from anthracyclines and taxane-based chemotherapy. The BCS procedure could be a safe alternative surgical option for eTNBC patients with BRCA mutations. Future studies with substantial numbers of participants are urgently needed to validate whether BRCA mutation eTNBC patients are more sensitive to chemotherapy.
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Affiliation(s)
- Fugui Ye
- Key Laboratory of Breast Cancer in Shanghai, Department of Breast Surgery, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Min He
- Key Laboratory of Breast Cancer in Shanghai, Department of Breast Surgery, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Liang Huang
- Key Laboratory of Breast Cancer in Shanghai, Department of Breast Surgery, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Guantian Lang
- Key Laboratory of Breast Cancer in Shanghai, Department of Breast Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Xin Hu
- Key Laboratory of Breast Cancer in Shanghai, Department of Breast Surgery, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Zhimin Shao
- Key Laboratory of Breast Cancer in Shanghai, Department of Breast Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.,Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Genhong Di
- Key Laboratory of Breast Cancer in Shanghai, Department of Breast Surgery, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Ayong Cao
- Key Laboratory of Breast Cancer in Shanghai, Department of Breast Surgery, Fudan University Shanghai Cancer Center, Shanghai, China
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9
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Purrington KS, Raychaudhuri S, Simon MS, Clark J, Ratliff V, Dyson G, Craig DB, Boerner JL, Beebe-Dimmer JL, Schwartz AG. Heritable Susceptibility to Breast Cancer among African-American Women in the Detroit Research on Cancer Survivors Study. Cancer Epidemiol Biomarkers Prev 2020; 29:2369-2375. [PMID: 32868316 PMCID: PMC7642006 DOI: 10.1158/1055-9965.epi-20-0564] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 07/16/2020] [Accepted: 08/26/2020] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND African-American women have high rates of breast cancer associated with hereditary features. However, no studies have reported the prevalence of inherited variation across all genes known to be breast cancer risk factors among African-American patients with breast cancer not selected for high-risk characteristics. METHODS We evaluated 182 African-American women diagnosed with invasive breast cancer in metropolitan Detroit via targeted capture and multiplex sequencing of 13 well-established breast cancer risk genes and five suggested breast cancer risk genes. RESULTS We identified 24 pathogenic variants in 23 women [12.6%; 95% confidence interval (CI), 8.2%-18.4%] and five genes (BRCA2, BRCA1, ATM, RAD50, CDH1). BRCA1 and BRCA2 accounted for 58.3% of all pathogenic variants. An additional six pathogenic variants were found in suggested breast cancer risk genes (MSH6, MUTYH, NF1, BRIP1). CONCLUSIONS The prevalence of germline pathogenic variants is relatively high among African-American patients with breast cancer unselected for high-risk characteristics across a broad spectrum of genes. IMPACT This study helps to define the genomic landscape of breast cancer susceptibility in African-American women who could benefit from enhanced surveillance and screening.
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Affiliation(s)
- Kristen S Purrington
- Department of Oncology, Wayne State University School of Medicine, Detroit, Michigan.
- Population Studies and Disparities Research Program, Barbara Ann Karmanos Cancer Institute, Detroit, Michigan
| | | | - Michael S Simon
- Department of Oncology, Wayne State University School of Medicine, Detroit, Michigan
- Population Studies and Disparities Research Program, Barbara Ann Karmanos Cancer Institute, Detroit, Michigan
| | - Julie Clark
- Department of Oncology, Wayne State University School of Medicine, Detroit, Michigan
- Molecular Therapeutics Program, Barbara Ann Karmanos Cancer Institute, Detroit, Michigan
| | - Valerie Ratliff
- Department of Oncology, Wayne State University School of Medicine, Detroit, Michigan
| | - Gregory Dyson
- Department of Oncology, Wayne State University School of Medicine, Detroit, Michigan
- Population Studies and Disparities Research Program, Barbara Ann Karmanos Cancer Institute, Detroit, Michigan
- Bioinformatics & Biostatistics Core, Barbara Ann Karmanos Cancer Institute, Detroit, Michigan
| | - Douglas B Craig
- Department of Oncology, Wayne State University School of Medicine, Detroit, Michigan
- Bioinformatics & Biostatistics Core, Barbara Ann Karmanos Cancer Institute, Detroit, Michigan
| | - Julie L Boerner
- Department of Oncology, Wayne State University School of Medicine, Detroit, Michigan
- Molecular Therapeutics Program, Barbara Ann Karmanos Cancer Institute, Detroit, Michigan
| | - Jennifer L Beebe-Dimmer
- Department of Oncology, Wayne State University School of Medicine, Detroit, Michigan
- Population Studies and Disparities Research Program, Barbara Ann Karmanos Cancer Institute, Detroit, Michigan
| | - Ann G Schwartz
- Department of Oncology, Wayne State University School of Medicine, Detroit, Michigan
- Population Studies and Disparities Research Program, Barbara Ann Karmanos Cancer Institute, Detroit, Michigan
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10
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Adedokun B, Zheng Y, Ndom P, Gakwaya A, Makumbi T, Zhou AY, Yoshimatsu TF, Rodriguez A, Madduri RK, Foster IT, Sallam A, Olopade OI, Huo D. Prevalence of Inherited Mutations in Breast Cancer Predisposition Genes among Women in Uganda and Cameroon. Cancer Epidemiol Biomarkers Prev 2019; 29:359-367. [PMID: 31871109 DOI: 10.1158/1055-9965.epi-19-0506] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Revised: 07/23/2019] [Accepted: 12/09/2019] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Sub-Saharan Africa (SSA) has a high proportion of premenopausal hormone receptor negative breast cancer. Previous studies reported a strikingly high prevalence of germline mutations in BRCA1 and BRCA2 among Nigerian patients with breast cancer. It is unknown if this exists in other SSA countries. METHODS Breast cancer cases, unselected for age at diagnosis and family history, were recruited from tertiary hospitals in Kampala, Uganda and Yaoundé, Cameroon. Controls were women without breast cancer recruited from the same hospitals and age-matched to cases. A multigene sequencing panel was used to test for germline mutations. RESULTS There were 196 cases and 185 controls with a mean age of 46.2 and 46.6 years for cases and controls, respectively. Among cases, 15.8% carried a pathogenic or likely pathogenic mutation in a breast cancer susceptibility gene: 5.6% in BRCA1, 5.6% in BRCA2, 1.5% in ATM, 1% in PALB2, 0.5% in BARD1, 0.5% in CDH1, and 0.5% in TP53. Among controls, 1.6% carried a mutation in one of these genes. Cases were 11-fold more likely to carry a mutation compared with controls (OR = 11.34; 95% confidence interval, 3.44-59.06; P < 0.001). The mean age of cases with BRCA1 mutations was 38.3 years compared with 46.7 years among other cases without such mutations (P = 0.03). CONCLUSIONS Our findings replicate the earlier report of a high proportion of mutations in BRCA1/2 among patients with symptomatic breast cancer in SSA. IMPACT Given the high burden of inherited breast cancer in SSA countries, genetic risk assessment could be integrated into national cancer control plans.
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Affiliation(s)
- Babatunde Adedokun
- Center for Clinical Cancer Genetics and Global Health, Department of Medicine, The University of Chicago, Chicago, Illinois
| | - Yonglan Zheng
- Center for Clinical Cancer Genetics and Global Health, Department of Medicine, The University of Chicago, Chicago, Illinois
| | - Paul Ndom
- Hôpital Général Yaoundé, Yaoundé, Cameroon
| | | | | | | | - Toshio F Yoshimatsu
- Center for Clinical Cancer Genetics and Global Health, Department of Medicine, The University of Chicago, Chicago, Illinois
| | | | - Ravi K Madduri
- Globus, The University of Chicago, Chicago, Illinois.,Data Science and Learning Division, Argonne National Laboratory, Lemont, Illinois
| | - Ian T Foster
- Globus, The University of Chicago, Chicago, Illinois.,Data Science and Learning Division, Argonne National Laboratory, Lemont, Illinois
| | - Aminah Sallam
- Center for Clinical Cancer Genetics and Global Health, Department of Medicine, The University of Chicago, Chicago, Illinois.,Yale School of Medicine, New Haven, Connecticut
| | - Olufunmilayo I Olopade
- Center for Clinical Cancer Genetics and Global Health, Department of Medicine, The University of Chicago, Chicago, Illinois.
| | - Dezheng Huo
- Center for Clinical Cancer Genetics and Global Health, Department of Medicine, The University of Chicago, Chicago, Illinois. .,Department of Public Health Sciences, The University of Chicago, Chicago, Illinois
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McBride CM, Guan Y, Hay JL. Regarding the Yin and Yang of Precision Cancer- Screening and Treatment: Are We Creating a Neglected Majority? INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:E4168. [PMID: 31671746 PMCID: PMC6862105 DOI: 10.3390/ijerph16214168] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 10/22/2019] [Accepted: 10/24/2019] [Indexed: 12/31/2022]
Abstract
In this commentary, we submit that the current emphasis of precision cancer screening and treatment (PCST) has been to provide and interpret the implications of "positive" screening results for those deemed to be at greatest risk for cancer or most likely to benefit from targeted treatments. This is an important, but proportionately small target group, regardless of the cancer context. Overlooked by this focus is the larger majority of those screened who receive "negative" results. We contend that for optimal dissemination of PCST, the complement of positive and negative results be viewed as an inseparable yin-yang duality with the needs of those who receive negative screening results viewed as important as those deemed to be at highest risk or derive targeted treatment benefit. We describe three areas where communication of negative PCST results warrant particular attention and research consideration: population-based family history screening, germline testing for hereditary cancer syndromes, and tumor testing for targeted cancer treatment decision-making. Without thoughtful consideration of the potential for negative results to have psychological and behavioral influences, there is a potential to create a "neglected majority". This majority may be inclined to misinterpret results, disseminate inaccurate information to family, dismiss the credibility of results, or become disillusioned with existing medical treatments.
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Affiliation(s)
- Colleen M McBride
- Behavioral Science and Health Education Department, Rollins School of Public Health Emory University, Atlanta, GA 30322, USA.
| | - Yue Guan
- Behavioral Science and Health Education Department, Rollins School of Public Health Emory University, Atlanta, GA 30322, USA.
| | - Jennifer L Hay
- Department of Psychiatry and Behavioral Sciences, Memorial Sloan Kettering Cancer Center, New York City, NY 10022, USA.
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12
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Assessing the effectiveness of the National Comprehensive Cancer Network genetic testing guidelines in identifying African American breast cancer patients with deleterious genetic mutations. Breast Cancer Res Treat 2019; 178:151-159. [PMID: 31325073 DOI: 10.1007/s10549-019-05359-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Accepted: 07/12/2019] [Indexed: 10/26/2022]
Abstract
PURPOSE Approximately, 10% of breast cancers are hereditary. Identifying women at high risk for hereditary breast and ovarian cancer allows for early detection, prevention, and individualized disease management for those diagnosed with breast cancer. There is limited data about breast cancer genetic risks among African Americans as the majority of the large studies have been conducted in European Americans. We examined the distribution of deleterious genetic mutations in African American breast cancer patients, and evaluated the effectiveness of the National Comprehensive Cancer Network (NCCN) guidelines for identifying African American women at high risk for deleterious genetic mutations. METHODS African American participants with breast cancer underwent an interview regarding health and family history, and a 30-gene saliva test. Medical records were accessed to determine whether participants had received prior genetic testing as part of usual care, results of previous testing, and cancer characteristics. RESULTS Two hundred and fifty participants were enrolled between February 2016 and May 2018. Twenty (8.0%) had a deleterious mutation in one of the 30 genes; BRCA2 had the highest frequency (40.0%). 187 (74.8%) met eligibility for testing based on NCCN guidelines. Only 110 (58.8%) of participants eligible for genetic testing, according to guidelines, had received prior testing as part of routine care. Using the 30-gene test, we identified deleterious mutations in 17 of 187 (9.1%) of those who met NCCN criteria for testing, and three of 63 (4.8%) of those who did not meet criteria for testing nonetheless had a deleterious mutation associated with breast cancer. CONCLUSIONS Our results indicate that a large proportion of African American breast cancer patients who meet criteria for genetic testing do not receive it as part of routine care. Even in women who do not meet testing guidelines, nearly 5% have a known deleterious mutation associated with breast cancer.
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13
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Armstrong N, Ryder S, Forbes C, Ross J, Quek RGW. A systematic review of the international prevalence of BRCA mutation in breast cancer. Clin Epidemiol 2019; 11:543-561. [PMID: 31372057 PMCID: PMC6628947 DOI: 10.2147/clep.s206949] [Citation(s) in RCA: 121] [Impact Index Per Article: 24.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Accepted: 05/23/2019] [Indexed: 02/06/2023] Open
Abstract
A systematic review was conducted, summarizing international BRCA 1 or 2 (BRCA1/2) mutation prevalence in breast cancer. Databases (eg, Medline and Embase; N=7) and conferences were searched (January 2012 to December 2017). From 17,872 records, 70 studies were included. In 58 large (N>100) studies, BRCA1/2 mutation prevalence varied widely from 1.8% (Spain) in sporadic breast cancer to 36.9% (United States) in estrogen receptor/progesterone receptor low+ (1-9% on immunohistochemistry/human epidermal growth factor receptor 2-negative [HER2-]) breast cancer. In 2 large studies unselected for family history, ethnicity, sex, or age and no/unclear selection by breast cancer stage or hormone receptor (HR) status, germline BRCA (gBRCA) mutation prevalence was 2.9% (Italy) to 3.0% (South Korea). In the 4 large unselected triple-negative breast cancer studies, gBRCA mutation prevalence varied from 9.3% (Australia) to 15.4% (United States). gBRCA mutation prevalence in 1 large unselected HR positive/HER2- early breast cancer study was 5% (United States). In 2 large unselected metastatic breast cancer studies, gBRCA mutation prevalence was 2.7% (France) and 4.3% (Germany). Locally advanced breast cancer studies were small and not in unselected populations. Poor reporting of gBRCA status and basis of selection implies a need for further large well-reported BRCA mutation prevalence studies in breast cancer.
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Affiliation(s)
- Nigel Armstrong
- Health Economics, Kleijnen Systematic Reviews Ltd., YorkYO19 6FD, UK
| | - Steve Ryder
- Health Economics, Kleijnen Systematic Reviews Ltd., YorkYO19 6FD, UK
| | - Carol Forbes
- Systematic Reviews, Kleijnen Systematic Reviews Ltd., YorkYO19 6FD, UK
| | - Janine Ross
- Information, Kleijnen Systematic Reviews Ltd
., YorkYO19 6FD, UK
| | - Ruben GW Quek
- Health Economics & Outcomes Research, Pfizer Inc., San Francisco, CA94105, USA
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14
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Differences in referral patterns based on race for women at high-risk for ovarian cancer in the southeast: Results from a Gynecologic Cancer Risk Assessment Clinic. Gynecol Oncol 2019; 154:379-382. [PMID: 31196574 DOI: 10.1016/j.ygyno.2019.05.031] [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] [Received: 03/19/2019] [Revised: 05/28/2019] [Accepted: 05/29/2019] [Indexed: 11/23/2022]
Abstract
OBJECTIVE To compare referral patterns, genetic testing and pathogenic variant rates in Black women (BW) and White women (WW) in a large academic Gynecologic Cancer Risk Assessment Clinic (GCRAC). METHODS Cross sectional study of an IRB-approved prospective, cohort study from a GCRAC. Data evaluated included: age, race, referral provider specialty and indication, genetic testing frequency, as well as frequency and types of pathogenic variants. RESULTS 588 WW and 57 BW were evaluated from 1/2010-12/2015. Although approximately one-third of BW and WW were referred for family history alone, referral indications varied. BW were more likely referred for a known pathogenic variant (20.0% vs. 6.2%) although less likely referred for a personal history of ovarian cancer (24.0% vs. 46.8%; p = 0.0023). While gynecologic oncologists referred most patients (BW 43.6% vs. WW 63.0%), BW were more likely to be referred by surgical oncologist (23.0% vs. 12.8%) or genetic counselor (12.8% vs. 5.9%) than WW (p = 0.0234). Referral from non-OBGYN primary care providers was <3% in both groups. Genetic testing rates were similar in both races (82.4% vs. 85.5%). Rates of BRCA1 mutations (12.7% vs. 11.5%) were similar; however, BW had more BRCA2 mutations (21.3% vs. 9.5%; p = 0.0194). CONCLUSIONS Since BW are more likely to be referred by surgical oncology or genetics counselor, breast clinics might be an entry point to ensure genetic counseling and testing. Continued efforts to increase awareness regarding the importance of patient referral at the primary care level may help identify the subset of women not currently undergoing counseling and testing.
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15
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Racial/Ethnic Disparities in BRCA Counseling and Testing: a Narrative Review. J Racial Ethn Health Disparities 2019; 6:570-583. [DOI: 10.1007/s40615-018-00556-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 12/13/2018] [Accepted: 12/18/2018] [Indexed: 01/12/2023]
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16
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Gonzalez BD, Hoogland AI, Kasting ML, Cragun D, Kim J, Ashing K, Holt CL, Hughes Halbert C, Pal T, Vadaparampil ST. Psychosocial impact of BRCA testing in young Black breast cancer survivors. Psychooncology 2018; 27:2778-2785. [PMID: 30207419 DOI: 10.1002/pon.4887] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 08/29/2018] [Accepted: 09/08/2018] [Indexed: 01/12/2023]
Abstract
OBJECTIVE Prior studies demonstrating minimal psychological consequences for women receiving genetic counseling/genetic testing (GC/GT) for hereditary breast and ovarian cancer rely on predominantly Caucasian women. We conducted a prospective follow-up of a subset of participants from a population-based study of Black breast cancer (BC) survivors receiving GC/GT for BRCA1 and BRCA2 mutations. METHODS Black women with invasive BC at age ≤ 50 years diagnosed between 2009 and 2012 were recruited through the Florida Cancer Registry. Participants (n = 215, age M = 44.7, SD = 6.2) were offered telephone pre- and post-test GC, a subset completed questionnaires assessing sociodemographic, clinical, and psychosocial variables. RESULTS There were no baseline differences in cancer-related distress, psychological distress, or quality of life between test result groups. Social well-being improved in women receiving negative results (P = .01), but no other outcomes demonstrated significant changes over time between groups. CONCLUSIONS Our study is among the first to demonstrate minimal negative psychosocial outcomes following GC/GT among young Black BC survivors, irrespective of test results.
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Affiliation(s)
| | - Aasha I Hoogland
- Moffitt Cancer Center, Tampa, FL, USA.,University of South Florida, Tampa, FL, USA
| | | | | | | | | | | | | | - Tuya Pal
- Division of Genetic Medicine, Department of Medicine, Vanderbilt University Medical Center, Vanderbilt-Ingram Cancer Center and Vanderbilt Genetics Institute, Nashville, TN, USA
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17
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Hoskins KF, Tejeda S, Vijayasiri G, Chukwudozie IB, Remo MH, Shah HA, Abraham IE, Balay LE, Maga TK, Searles ER, Korah VJ, Biggers A, Stolley MR, Warnecke RB. A feasibility study of breast cancer genetic risk assessment in a federally qualified health center. Cancer 2018; 124:3733-3741. [PMID: 30320429 PMCID: PMC6214782 DOI: 10.1002/cncr.31635] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 05/21/2018] [Accepted: 05/24/2018] [Indexed: 01/18/2023]
Abstract
BACKGROUND The US Preventive Services Task Force (USPSTF) endorses routine screening for genetic risk of breast and/or ovarian cancer as a component of primary health care. Implementation of this recommendation may prove challenging, especially in clinics serving disadvantaged communities. METHODS The authors tested the feasibility of implementing the USPSTF mandate at a federally qualified health center (FQHC) to identify women who were eligible for genetic counseling (GC). A 12-month usual-care phase was followed by a 12-month intervention phase, during which time cancer genetic risk assessment (CGRA) was systematically performed for all women aged 25 to 69 years who presented for an annual examination. Women who were eligible for GC were recruited to participate in the study. RESULTS After initiating CGRA, 112 women who were eligible for GC consented to study participation, and 56% of them received a referral for GC from their primary care physician. A subgroup of 50 participants were seen by the same primary care physician during both the usual-care and intervention phases. None of these patients was referred for GC during usual care, compared with 64% after the initiation of CGRA (P < .001). Only 16% of referred participants attended a GC session. CONCLUSIONS Implementing USPSTF recommendations for CGRA as a standard component of primary health care in FQHCs is feasible and improves referral of minority women for GC, but more work is needed to understand the beliefs and barriers that prevent many underserved women from accessing cancer genetic services.
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Affiliation(s)
- Kent F Hoskins
- Section of Hematology and Oncology, Department of Medicine, University of Illinois at Chicago College of Medicine, Chicago, Illinois
- Institute for Health Research and Policy, School of Public Health, University of Illinois at Chicago, Chicago, Illinois
| | - Silvia Tejeda
- Institute for Health Research and Policy, School of Public Health, University of Illinois at Chicago, Chicago, Illinois
| | - Ganga Vijayasiri
- Institute for Health Research and Policy, School of Public Health, University of Illinois at Chicago, Chicago, Illinois
| | - Ifeanyi Beverly Chukwudozie
- Institute for Health Research and Policy, School of Public Health, University of Illinois at Chicago, Chicago, Illinois
| | - Mylene H Remo
- Section of Hematology and Oncology, Department of Medicine, University of Illinois at Chicago College of Medicine, Chicago, Illinois
| | - Hiral A Shah
- Section of Hematology and Oncology, Department of Medicine, University of Illinois at Chicago College of Medicine, Chicago, Illinois
| | - Ivy E Abraham
- Section of Hematology and Oncology, Department of Medicine, University of Illinois at Chicago College of Medicine, Chicago, Illinois
| | - Lara E Balay
- Section of Hematology and Oncology, Department of Medicine, University of Illinois at Chicago College of Medicine, Chicago, Illinois
| | - Tara K Maga
- Section of Hematology and Oncology, Department of Medicine, University of Illinois at Chicago College of Medicine, Chicago, Illinois
| | | | | | - Alana Biggers
- Section of General Internal Medicine, University of Illinois at Chicago College of Medicine, Chicago, Illinois
| | - Melinda R Stolley
- Institute for Health Research and Policy, School of Public Health, University of Illinois at Chicago, Chicago, Illinois
- Department of Medicine, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Richard B Warnecke
- Institute for Health Research and Policy, School of Public Health, University of Illinois at Chicago, Chicago, Illinois
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18
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Davis MB, Newman LA. Breast Cancer Disparities: How Can We Leverage Genomics to Improve Outcomes? Surg Oncol Clin N Am 2018; 27:217-234. [PMID: 29132562 DOI: 10.1016/j.soc.2017.07.009] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Breast cancer mortality rates are higher in African American compared with white American women. Disproportionately rising incidence rates, coupled with higher rates of biologically aggressive disease among African Americans is resulting in a widening of the mortality disparity. Higher rates of triple-negative breast cancer among African American women, as well as women from western sub-Saharan Africa, has prompted questions regarding the role of African ancestry as a marker of hereditary susceptibility for specific disease phenotypes. Advances in germline genetics, as well as somatic tumor genomic research, hold great promise in the effort to understand the biology of breast cancer variations between different population subsets.
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Affiliation(s)
- Melissa B Davis
- Henry Ford Cancer Institute, 2799 West Grand Boulevard, Detroit, MI 48202, USA
| | - Lisa A Newman
- Breast Oncology Program, Department of Surgery, Henry Ford Health System, Henry Ford Cancer Institute, International Center for the Study of Breast Cancer Subtypes, 2799 West Grand Boulevard, Detroit, MI 48202, USA.
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19
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Barrington DA, Champion ML, Boitano TKL, Walters-Haygood CL, Farmer MB, Alvarez RD, Estes JM, Leath CA. Characteristics of African American women at high-risk for ovarian cancer in the southeast: Results from a Gynecologic Cancer Risk Assessment Clinic. Gynecol Oncol 2018; 149:337-340. [PMID: 29486991 DOI: 10.1016/j.ygyno.2018.02.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Revised: 02/05/2018] [Accepted: 02/18/2018] [Indexed: 12/01/2022]
Abstract
OBJECTIVES Describe patient characteristics in African American (AA) women seen for gynecologic cancer related genetic counseling at a large southeastern comprehensive cancer center. METHODS We reviewed an IRB approved, prospective observational cohort of patients from a Gynecologic Cancer Risk Assessment Clinic. Data evaluated included personal cancer history, family history, frequency of genetic testing, frequency/type of genetic mutations, and frequency of surgical intervention. Standard statistical statistics were utilized. RESULTS 1227 patients were evaluated from 2003 to 2015, of which 95 (7.7%) were AA. Sixteen patients had a personal history of ovarian cancer. 21 women (22%) underwent genetic counseling only; subsequent genetic testing was not recommended based on absence of risk factors. Of the seventy-four AA patients in whom genetic testing was recommended, sixty-six (69.5%) completed testing. Of women tested, 37 (56%) had abnormal results. Eight and 14 patients had pathogenic variants in BRCA1 and BRCA2, respectively. Two were found to have pathogenic PALB2 variants; one had a pathogenic ATM variant and one constitutional MLH1 epimutation case was identified. Eleven had BRCA variants of uncertain significance. Of the patients with abnormal testing, six of 22 women with pathogenic BRCA variants underwent risk-reducing salpingo-oophorectomy (RRSO). CONCLUSIONS Our study demonstrates that in a region where AAs represent 27% of the population, the proportion of AA patients referred to a Gynecologic Cancer Risk Assessment Clinic remains low. Pathogenic variant and variant of uncertain significance rates were high in patients tested, likely representing a selection bias of high-risk patients. Endeavors should continue to identify minorities at risk for ovarian cancer and institute measures to provide thorough genetic counseling and testing.
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Affiliation(s)
- David A Barrington
- University of Alabama at Birmingham, Department of Obstetrics & Gynecology, United States
| | - Macie L Champion
- University of Alabama at Birmingham, Department of Obstetrics & Gynecology, United States
| | - Teresa K L Boitano
- University of Alabama at Birmingham, Department of Obstetrics & Gynecology, United States
| | | | - Meagan B Farmer
- University of Alabama at Birmingham, Department of Medical Genetics, United States
| | - Ronald D Alvarez
- University of Alabama at Birmingham, Division of Gynecologic Oncology, United States
| | - Jacob M Estes
- University of Alabama at Birmingham, Division of Gynecologic Oncology, United States
| | - Charles A Leath
- University of Alabama at Birmingham, Division of Gynecologic Oncology, United States.
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20
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Powers B, Pal T, Laronga C. Considerations in Testing for Inherited Breast Cancer Predisposition in the Era of Personalized Medicine. Surg Oncol Clin N Am 2017; 27:1-22. [PMID: 29132555 DOI: 10.1016/j.soc.2017.08.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Technological advances realized through next-generation sequencing technologies coupled with the loss of the ability to patent genes have led to reduction in costs for genetic testing. As a result, more people are being identified with inherited breast cancer syndromes that may affect recommendations for surveillance and risk reduction. Surgeons, at the forefront for patients newly diagnosed with breast cancer, must keep current with the changing landscape of genetics to continue to provide appropriate counsel and care. This article provides an overview of individuals at risk for inherited cancer predisposition and recommendations for surveillance and management.
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Affiliation(s)
- Benjamin Powers
- Department of Breast Oncology, H. Lee Moffitt Cancer Center, 10920 N. Mckinley Drive, Tampa, FL 33612, USA
| | - Tuya Pal
- Department of Medicine, Vanderbilt University Medical Center, Vanderbilt-Ingram Cancer Center, Nashville, TN, USA
| | - Christine Laronga
- Department of Breast Oncology, H. Lee Moffitt Cancer Center, 10920 N. Mckinley Drive, Tampa, FL 33612, USA.
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21
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Scherr CL, Bomboka L, Nelson A, Pal T, Vadaparampil ST. Tracking the dissemination of a culturally targeted brochure to promote awareness of hereditary breast and ovarian cancer among Black women. PATIENT EDUCATION AND COUNSELING 2017; 100:805-811. [PMID: 27866793 PMCID: PMC5400706 DOI: 10.1016/j.pec.2016.10.026] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Revised: 09/23/2016] [Accepted: 10/30/2016] [Indexed: 06/06/2023]
Abstract
OBJECTIVE Black women have a higher rate of BRCA1 and BRCA2 (BRCA) mutations, compared with other populations, that increases their risk for hereditary breast and ovarian cancer (HBOC). However, Black women are less likely to know about HBOC and genetic testing. Based on a request from a community advisory panel of breast cancer survivors, community leaders and healthcare providers in the Black community, our team developed a culturally targeted educational brochure to promote awareness of HBOC among Black women. METHODS To reach the target population we utilized a passive dissemination strategy. Using Diffusion of Innovations (DOI) as a framework, we traced dissemination of the brochure over a five year period using self-addressed postcards contained inside the brochure that included several open-ended questions about the utility of the brochure, and a field for written comments. Closed-ended responses were analyzed using descriptive statistics and thematic analysis was conducted on the open-ended responses. RESULTS DOI captured the proliferation of the brochure among Black women across the US. PRACTICE IMPLICATIONS The use of passive dissemination strategies among pre-existing social networks proved to be a useful and sustainable method for increasing knowledge of HBOC among Black women.
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Affiliation(s)
- Courtney Lynam Scherr
- Northwestern University, Department of Communication Studies, Chicago, IL 60611, USA.
| | - Linda Bomboka
- Moffitt Cancer Center, Health Outcomes and Behavior, Tampa, FL 33612, USA
| | - Alison Nelson
- Moffitt Cancer Center, Health Outcomes and Behavior, Tampa, FL 33612, USA
| | - Tuya Pal
- Moffitt Cancer Center, Health Outcomes and Behavior, Tampa, FL 33612, USA
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22
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Jones T, Lockhart JS, Mendelsohn-Victor KE, Duquette D, Northouse LL, Duffy SA, Donley R, Merajver SD, Milliron KJ, Roberts JS, Katapodi MC. Use of Cancer Genetics Services in African-American Young Breast Cancer Survivors. Am J Prev Med 2016; 51:427-36. [PMID: 27117712 DOI: 10.1016/j.amepre.2016.03.016] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Revised: 02/25/2016] [Accepted: 03/22/2016] [Indexed: 12/17/2022]
Abstract
INTRODUCTION African-American women have higher rates of early-onset breast cancer compared with their Caucasian counterparts; yet, when diagnosed with breast cancer at a young age, they underuse genetic counseling and testing to manage their risk of developing future cancers. METHODS Self-reported baseline data were collected between September 2012 and January 2013 and analyzed in 2014 from a subpopulation of 340 African-American young breast cancer survivors (YBCSs) enrolled in an RCT. YBCSs were diagnosed with invasive breast cancer or ductal carcinoma in situ between ages 20 and 45 years and were randomly selected from a statewide cancer registry. Logistic regression examined predictors of using cancer genetics services. RESULTS Overall, 28% of the sample reported having genetic counseling and 21% reported having genetic testing, which were significantly lower (p≤0.005) compared with white/other YBCSs participating in the parent study. In a multivariate analysis, income was positively associated with counseling (B=0.254, p≤0.01) and testing (B=0.297, p≤0.01), whereas higher education levels (B=-0.328, p≤0.05) and lack of access to healthcare services owing to cost (B=-1.10, p≤0.03) were negatively associated with genetic counseling. Lower income and lack of care because of high out-of-pocket costs were commonly reported barriers. CONCLUSIONS Despite national recommendations for genetic evaluation among women with early-onset breast cancer, few African-American YBCSs reported undergoing genetic counseling and testing. Most reported that their healthcare provider did not recommend these services. Interventions addressing patient, provider, and structural healthcare system barriers to using genetic counseling and testing in this population are needed.
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Affiliation(s)
- Tarsha Jones
- The Phyllis F. Cantor Center for Research in Nursing and Patient Care Services at Dana-Farber Cancer Institute, Boston, Massachusetts; Duquesne University School of Nursing, Pittsburgh, Pennsylvania
| | - Joan S Lockhart
- Duquesne University School of Nursing, Pittsburgh, Pennsylvania
| | | | - Debra Duquette
- Michigan Department of Health and Human Services, Cancer Genomics Program, Lansing, Michigan
| | | | - Sonia A Duffy
- Ohio State University College of Nursing, Columbus, Ohio
| | - Rosemary Donley
- Duquesne University School of Nursing, Pittsburgh, Pennsylvania
| | | | - Kara J Milliron
- University of Michigan Comprehensive Cancer Center, Ann Arbor, Michigan
| | - J Scott Roberts
- University of Michigan School of Public Health, Ann Arbor, Michigan
| | - Maria C Katapodi
- University of Michigan School of Nursing, Ann Arbor, Michigan; University of Basel, Institute of Nursing Science, Basel, Switzerland.
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23
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Pasick RJ, Joseph G, Stewart S, Kaplan C, Lee R, Luce J, Davis S, Marquez T, Nguyen T, Guerra C. Effective Referral of Low-Income Women at Risk for Hereditary Breast and Ovarian Cancer to Genetic Counseling: A Randomized Delayed Intervention Control Trial. Am J Public Health 2016; 106:1842-8. [PMID: 27552275 DOI: 10.2105/ajph.2016.303312] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
OBJECTIVES To determine the effectiveness of a statewide telephone service in identifying low-income women at risk for hereditary breast and ovarian cancer and referring them to free genetic counseling. METHODS From June 2010 through August 2011, eligible callers to California's toll-free breast and cervical cancer telephone service were screened for their family histories of breast and ovarian cancer. High-risk women were identified and called for a baseline survey and randomization to an immediate offer of genetic counseling or a mailed brochure on how to obtain counseling. Clinic records were used to assess receipt of genetic counseling after 2 months. RESULTS Among 1212 eligible callers, 709 (58.5%) agreed to answer family history questions; 102 (14%) were at high risk (25% Hispanic, 46% White, 10% Black, 16% Asian, 3% of other racial/ethnic backgrounds). Of the high-risk women offered an immediate appointment, 39% received counseling during the intervention period, as compared with 4.5% of those receiving the brochure. CONCLUSIONS A public health approach to the rare but serious risk of hereditary breast and ovarian cancer can be successful when integrated into the efforts of existing safety net organizations.
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Affiliation(s)
- Rena J Pasick
- Rena J. Pasick, Celia Kaplan, Tung Nguyen, and Claudia Guerra are with the Department of Medicine, Division of General Internal Medicine, University of California, San Francisco. Galen Joseph is with the Department of Anthropology, History, and Social Medicine, University of California, San Francisco. Susan Stewart is with the Division of Biostatistics, University of California, Davis. Robin Lee is with the Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco. Judith Luce is with the Department of Medicine, Division of Hematology and Oncology, San Francisco General Hospital, University of California, San Francisco. Sharon Davis and Titas Marquez are with the Cancer Prevention Institute of California, Fremont
| | - Galen Joseph
- Rena J. Pasick, Celia Kaplan, Tung Nguyen, and Claudia Guerra are with the Department of Medicine, Division of General Internal Medicine, University of California, San Francisco. Galen Joseph is with the Department of Anthropology, History, and Social Medicine, University of California, San Francisco. Susan Stewart is with the Division of Biostatistics, University of California, Davis. Robin Lee is with the Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco. Judith Luce is with the Department of Medicine, Division of Hematology and Oncology, San Francisco General Hospital, University of California, San Francisco. Sharon Davis and Titas Marquez are with the Cancer Prevention Institute of California, Fremont
| | - Susan Stewart
- Rena J. Pasick, Celia Kaplan, Tung Nguyen, and Claudia Guerra are with the Department of Medicine, Division of General Internal Medicine, University of California, San Francisco. Galen Joseph is with the Department of Anthropology, History, and Social Medicine, University of California, San Francisco. Susan Stewart is with the Division of Biostatistics, University of California, Davis. Robin Lee is with the Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco. Judith Luce is with the Department of Medicine, Division of Hematology and Oncology, San Francisco General Hospital, University of California, San Francisco. Sharon Davis and Titas Marquez are with the Cancer Prevention Institute of California, Fremont
| | - Celia Kaplan
- Rena J. Pasick, Celia Kaplan, Tung Nguyen, and Claudia Guerra are with the Department of Medicine, Division of General Internal Medicine, University of California, San Francisco. Galen Joseph is with the Department of Anthropology, History, and Social Medicine, University of California, San Francisco. Susan Stewart is with the Division of Biostatistics, University of California, Davis. Robin Lee is with the Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco. Judith Luce is with the Department of Medicine, Division of Hematology and Oncology, San Francisco General Hospital, University of California, San Francisco. Sharon Davis and Titas Marquez are with the Cancer Prevention Institute of California, Fremont
| | - Robin Lee
- Rena J. Pasick, Celia Kaplan, Tung Nguyen, and Claudia Guerra are with the Department of Medicine, Division of General Internal Medicine, University of California, San Francisco. Galen Joseph is with the Department of Anthropology, History, and Social Medicine, University of California, San Francisco. Susan Stewart is with the Division of Biostatistics, University of California, Davis. Robin Lee is with the Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco. Judith Luce is with the Department of Medicine, Division of Hematology and Oncology, San Francisco General Hospital, University of California, San Francisco. Sharon Davis and Titas Marquez are with the Cancer Prevention Institute of California, Fremont
| | - Judith Luce
- Rena J. Pasick, Celia Kaplan, Tung Nguyen, and Claudia Guerra are with the Department of Medicine, Division of General Internal Medicine, University of California, San Francisco. Galen Joseph is with the Department of Anthropology, History, and Social Medicine, University of California, San Francisco. Susan Stewart is with the Division of Biostatistics, University of California, Davis. Robin Lee is with the Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco. Judith Luce is with the Department of Medicine, Division of Hematology and Oncology, San Francisco General Hospital, University of California, San Francisco. Sharon Davis and Titas Marquez are with the Cancer Prevention Institute of California, Fremont
| | - Sharon Davis
- Rena J. Pasick, Celia Kaplan, Tung Nguyen, and Claudia Guerra are with the Department of Medicine, Division of General Internal Medicine, University of California, San Francisco. Galen Joseph is with the Department of Anthropology, History, and Social Medicine, University of California, San Francisco. Susan Stewart is with the Division of Biostatistics, University of California, Davis. Robin Lee is with the Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco. Judith Luce is with the Department of Medicine, Division of Hematology and Oncology, San Francisco General Hospital, University of California, San Francisco. Sharon Davis and Titas Marquez are with the Cancer Prevention Institute of California, Fremont
| | - Titas Marquez
- Rena J. Pasick, Celia Kaplan, Tung Nguyen, and Claudia Guerra are with the Department of Medicine, Division of General Internal Medicine, University of California, San Francisco. Galen Joseph is with the Department of Anthropology, History, and Social Medicine, University of California, San Francisco. Susan Stewart is with the Division of Biostatistics, University of California, Davis. Robin Lee is with the Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco. Judith Luce is with the Department of Medicine, Division of Hematology and Oncology, San Francisco General Hospital, University of California, San Francisco. Sharon Davis and Titas Marquez are with the Cancer Prevention Institute of California, Fremont
| | - Tung Nguyen
- Rena J. Pasick, Celia Kaplan, Tung Nguyen, and Claudia Guerra are with the Department of Medicine, Division of General Internal Medicine, University of California, San Francisco. Galen Joseph is with the Department of Anthropology, History, and Social Medicine, University of California, San Francisco. Susan Stewart is with the Division of Biostatistics, University of California, Davis. Robin Lee is with the Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco. Judith Luce is with the Department of Medicine, Division of Hematology and Oncology, San Francisco General Hospital, University of California, San Francisco. Sharon Davis and Titas Marquez are with the Cancer Prevention Institute of California, Fremont
| | - Claudia Guerra
- Rena J. Pasick, Celia Kaplan, Tung Nguyen, and Claudia Guerra are with the Department of Medicine, Division of General Internal Medicine, University of California, San Francisco. Galen Joseph is with the Department of Anthropology, History, and Social Medicine, University of California, San Francisco. Susan Stewart is with the Division of Biostatistics, University of California, Davis. Robin Lee is with the Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco. Judith Luce is with the Department of Medicine, Division of Hematology and Oncology, San Francisco General Hospital, University of California, San Francisco. Sharon Davis and Titas Marquez are with the Cancer Prevention Institute of California, Fremont
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24
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Hurtado-de-Mendoza A, Jackson MC, Anderson L, Sheppard VB. The Role of Knowledge on Genetic Counseling and Testing in Black Cancer Survivors at Increased Risk of Carrying a BRCA1/2 Mutation. J Genet Couns 2016; 26:113-121. [PMID: 27402168 DOI: 10.1007/s10897-016-9986-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Accepted: 06/02/2016] [Indexed: 10/21/2022]
Abstract
Genetic counseling and testing (GCT) for hereditary breast and ovarian cancers (HBOC) can inform treatment decisions in survivors. Black women at risk of HBOC have lower GCT engagement. There is limited data about Black survivors' experiences. The goals of this study were to: 1) examine the factors associated with HBOC knowledge and 2) assess the impact of knowledge on GCT engagement in a sample of Black survivors at risk of HBOC. Fifty Black at-risk breast/ovarian cancer survivors participated in a telephone-based survey. GCT use was measured across a continuum (awareness, referral, and use). The primary predictor variable was HBOC knowledge. Other clinical, socio-demographic, and psychosocial variables were included. Multiple linear and ordinal regression models (knowledge as the outcome and GCT as the outcome) assessed the predictors of knowledge and GCT engagement. Less than half (48 %) of survivors were referred to or used GCT services. Knowledge was moderate (M = 7.78, SD = 1.61). In the multivariable analysis, lower age (β = -.34, p = .01) and lower stage (β = -.318, p = .017) were associated with higher knowledge. Higher knowledge (β = .567, p = .006) and higher self-efficacy (β = .406, p = .001) were significantly associated with GCT engagement. Future interventions directed at increasing knowledge, self-efficacy, and improving the referral process are warranted.
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Affiliation(s)
- Alejandra Hurtado-de-Mendoza
- Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, 3300 Whitehaven St. NW, Suite 4100, Washington, DC, 20007, USA.
| | - Monica C Jackson
- Department of Mathematics and Statistics, American University, Washington, DC, USA
| | - Lyndsay Anderson
- Capital Breast Care Center, MedStar Georgetown University Hospital/Lombardi Comprehensive Cancer Center, Washington, DC, USA
| | - Vanessa B Sheppard
- Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, 3300 Whitehaven St. NW, Suite 4100, Washington, DC, 20007, USA
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25
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Koru-Sengul T, Santander AM, Miao F, Sanchez LG, Jorda M, Glück S, Ince TA, Nadji M, Chen Z, Penichet ML, Cleary MP, Torroella-Kouri M. Breast cancers from black women exhibit higher numbers of immunosuppressive macrophages with proliferative activity and of crown-like structures associated with lower survival compared to non-black Latinas and Caucasians. Breast Cancer Res Treat 2016; 158:113-126. [PMID: 27283835 DOI: 10.1007/s10549-016-3847-3] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Accepted: 05/27/2016] [Indexed: 12/16/2022]
Abstract
Racial disparities in breast cancer incidence and outcome are a major health care challenge. Patients in the black race group more likely present with an early onset and more aggressive disease. The occurrence of high numbers of macrophages is associated with tumor progression and poor prognosis in solid malignancies. Macrophages are observed in adipose tissues surrounding dead adipocytes in "crown-like structures" (CLS). Here we investigated whether the numbers of CD163+ tumor-associated macrophages (TAMs) and/or CD163+ CLS are associated with patient survival and whether there are significant differences across blacks, non-black Latinas, and Caucasians. Our findings confirm that race is statistically significantly associated with the numbers of TAMs and CLS in breast cancer, and demonstrate that the highest numbers of CD163+ TAM/CLS are found in black breast cancer patients. Our results reveal that the density of CD206 (M2) macrophages is a significant predictor of progression-free survival univariately and is also significant after adjusting for race and for HER2, respectively. We examined whether the high numbers of TAMs detected in tumors from black women were associated with macrophage proliferation, using the Ki-67 nuclear proliferation marker. Our results reveal that TAMs actively divide when in contact with tumor cells. There is a higher ratio of proliferating macrophages in tumors from black patients. These findings suggest that interventions based on targeting TAMs may not only benefit breast cancer patients in general but also serve as an approach to remedy racial disparity resulting in better prognosis patients from minority racial groups.
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Affiliation(s)
- Tulay Koru-Sengul
- Department of Public Health Sciences, University of Miami Miller School of Medicine, Miami, FL, USA.,Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Ana M Santander
- Department of Microbiology and Immunology, University of Miami Miller School of Medicine, 1600 NW 10th Avenue Rosenstiel Medical School Building Suite 3123A, P.O. Box 016960 (R-138), Miami, FL, 33101, USA
| | - Feng Miao
- Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Lidia G Sanchez
- Department of Microbiology and Immunology, University of Miami Miller School of Medicine, 1600 NW 10th Avenue Rosenstiel Medical School Building Suite 3123A, P.O. Box 016960 (R-138), Miami, FL, 33101, USA
| | - Merce Jorda
- Department of Pathology, University of Miami Miller School of Medicine, Miami, FL, USA.,Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Stefan Glück
- Department of Medicine, University of Miami Miller School of Medicine, Miami, FL, USA.,Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, USA.,Celgene Corporation, Summit, NJ, USA
| | - Tan A Ince
- Department of Pathology, University of Miami Miller School of Medicine, Miami, FL, USA.,Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Mehrad Nadji
- Department of Pathology, University of Miami Miller School of Medicine, Miami, FL, USA.,Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Zhibin Chen
- Department of Microbiology and Immunology, University of Miami Miller School of Medicine, 1600 NW 10th Avenue Rosenstiel Medical School Building Suite 3123A, P.O. Box 016960 (R-138), Miami, FL, 33101, USA.,Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Manuel L Penichet
- Division of Surgical Oncology, Department of Surgery, UCLA, Los Angeles, CA, USA.,Department of Microbiology, Immunology, and Molecular Genetics, David Geffen School of Medicine at UCLA, UCLA, Los Angeles, CA, USA.,Jonsson Comprehensive Cancer Center, UCLA, Los Angeles, CA, USA.,UCLA AIDS Institute, UCLA, Los Angeles, CA, USA.,The Molecular Biology Institute, UCLA, Los Angeles, CA, USA
| | - Margot P Cleary
- Hormel Institute, University of Minnesota, Austin, MN, 55912, USA
| | - Marta Torroella-Kouri
- Department of Public Health Sciences, University of Miami Miller School of Medicine, Miami, FL, USA. .,Department of Microbiology and Immunology, University of Miami Miller School of Medicine, 1600 NW 10th Avenue Rosenstiel Medical School Building Suite 3123A, P.O. Box 016960 (R-138), Miami, FL, 33101, USA. .,Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, USA.
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26
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Francies FZ, Wainstein T, De Leeneer K, Cairns A, Murdoch M, Nietz S, Cubasch H, Poppe B, Van Maerken T, Crombez B, Coene I, Kerr R, Slabbert JP, Vral A, Krause A, Baeyens A, Claes KBM. BRCA1, BRCA2 and PALB2 mutations and CHEK2 c.1100delC in different South African ethnic groups diagnosed with premenopausal and/or triple negative breast cancer. BMC Cancer 2015; 15:912. [PMID: 26577449 PMCID: PMC4647511 DOI: 10.1186/s12885-015-1913-6] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Accepted: 11/05/2015] [Indexed: 12/20/2022] Open
Abstract
Background Current knowledge of the aetiology of hereditary breast cancer in the four main South African population groups (black, coloured, Indian and white) is limited. Risk assessments in the black, coloured and Indian population groups are challenging because of restricted information regarding the underlying genetic contributions to inherited breast cancer in these populations. We focused this study on premenopausal patients (diagnosed with breast cancer before the age of 50; n = 78) and triple negative breast cancer (TNBC) patients (n = 30) from the four South African ethnic groups. The aim of this study was to determine the frequency and spectrum of germline mutations in BRCA1, BRCA2 and PALB2 and to evaluate the presence of the CHEK2 c.1100delC allele in these patients. Methods In total, 108 South African breast cancer patients underwent mutation screening using a Next-Generation Sequencing (NGS) approach in combination with Multiplex Ligation-dependent Probe Amplification (MLPA) to detect large rearrangements in BRCA1 and BRCA2. Results In 13 (12 %) patients a deleterious mutation in BRCA1/2 was detected, three of which were novel mutations in black patients. None of the study participants was found to have an unequivocal pathogenic mutation in PALB2. Two (white) patients tested positive for the CHEK2 c.1100delC mutation, however, one of these also carried a deleterious BRCA2 mutation. Additionally, six variants of unknown clinical significance were identified (4 in BRCA2, 2 in PALB2), all in black patients. Within the group of TNBC patients, a higher mutation frequency was obtained (23.3 %; 7/30) than in the group of patients diagnosed before the age of 50 (7.7 %; 6/78). Conclusion This study highlights the importance of evaluating germline mutations in major breast cancer genes in all of the South African population groups. This NGS study shows that mutation analysis is warranted in South African patients with triple negative and/or in premenopausal breast cancer. Electronic supplementary material The online version of this article (doi:10.1186/s12885-015-1913-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- F Z Francies
- iThemba LABS-National Research Foundation, Somerset West, South Africa. .,Department of Radiation Sciences, University of the Witwatersrand, Johannesburg, South Africa.
| | - T Wainstein
- Division of Human Genetics, School of Pathology, University of the Witwatersrand, Johannesburg, South Africa.
| | - K De Leeneer
- Center for Medical Genetics, Ghent University Hospital, Ghent, Belgium.
| | - A Cairns
- Department of Surgery, Charlotte Maxeke Johannesburg Academic Hospital and Donald Gordon Medical Centre, Johannesburg, South Africa.
| | - M Murdoch
- Department of Surgery, Charlotte Maxeke Johannesburg Academic Hospital and Donald Gordon Medical Centre, Johannesburg, South Africa.
| | - S Nietz
- Department of Surgery, Charlotte Maxeke Johannesburg Academic Hospital and Donald Gordon Medical Centre, Johannesburg, South Africa.
| | - H Cubasch
- Batho Pele Breast Unit, Chris Hani Baragwanath Academic Hospital, Johannesburg, South Africa.
| | - B Poppe
- Center for Medical Genetics, Ghent University Hospital, Ghent, Belgium.
| | - T Van Maerken
- Center for Medical Genetics, Ghent University Hospital, Ghent, Belgium.
| | - B Crombez
- Center for Medical Genetics, Ghent University Hospital, Ghent, Belgium.
| | - I Coene
- Center for Medical Genetics, Ghent University Hospital, Ghent, Belgium.
| | - R Kerr
- Division of Human Genetics, School of Pathology, University of the Witwatersrand, Johannesburg, South Africa.
| | - J P Slabbert
- iThemba LABS-National Research Foundation, Somerset West, South Africa.
| | - A Vral
- Department of Basic Medical Sciences, Ghent University, Ghent, Belgium.
| | - A Krause
- Division of Human Genetics, School of Pathology, University of the Witwatersrand, Johannesburg, South Africa. .,Division of Human Genetics, National Health Laboratory Services, Johannesburg, South Africa.
| | - A Baeyens
- iThemba LABS-National Research Foundation, Somerset West, South Africa. .,Department of Radiation Sciences, University of the Witwatersrand, Johannesburg, South Africa. .,Department of Basic Medical Sciences, Ghent University, Ghent, Belgium.
| | - K B M Claes
- Center for Medical Genetics, Ghent University Hospital, Ghent, Belgium.
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27
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Deleterious BRCA1/2 mutations in an urban population of Black women. Breast Cancer Res Treat 2015; 153:201-9. [PMID: 26250392 DOI: 10.1007/s10549-015-3527-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Accepted: 07/31/2015] [Indexed: 01/05/2023]
Abstract
Information on the prevalence of deleterious BRCA1 and BRCA2 (BRCA1/2) mutations in clinic-based populations of Black women is limited. In order to address this gap, we performed a retrospective study to determine the prevalence of deleterious BRCA1/2 mutations, predictors of having a mutation, and acceptance of risk-reducing surgeries in Black women. In an urban unselected clinic-based population, we evaluated 211 self-identified Black women who underwent genetic counseling for hereditary breast-ovarian cancer syndrome. BRCA1/2 mutations were identified in 13.4% of the participants who received genetic testing. Younger age at diagnosis, higher BRCAPRO score, significant family history, and diagnosis of triple-negative breast cancer were associated with identification of a BRCA1/2 mutation. Of the affected patients found to have a deleterious mutation, almost half underwent prophylactic measures. In our study population, 1 in 7 Black women who underwent genetic testing harbored a deleterious BRCA1/2 mutation independent of age at diagnosis or family history.
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28
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Newman LA. Disparities in breast cancer and african ancestry: a global perspective. Breast J 2015; 21:133-9. [PMID: 25639288 DOI: 10.1111/tbj.12369] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Recognition of breast cancer disparities between African-American and White American women has generated exciting research opportunities investigating the biologic and hereditary factors that contribute to the observed outcome differences, leading to international studies of breast cancer in Africa. The study of breast cancer in women with African ancestry has opened the door to unique investigations regarding breast cancer subtypes and the genetics of this disease. International research efforts can advance our understanding of race/ethnicity-associated breast cancer disparities within the USA; the pathogenesis of triple negative breast cancer; and hereditary susceptibility for breast cancer.
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Affiliation(s)
- Lisa A Newman
- Department of Surgery, Breast Care Center, University of Michigan Comprehensive Cancer Center, Ann Arbor, Michigan
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29
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Vadaparampil ST, Malo TL, Nam KM, Nelson A, de la Cruz CZ, Quinn GP. From observation to intervention: development of a psychoeducational intervention to increase uptake of BRCA genetic counseling among high-risk breast cancer survivors. JOURNAL OF CANCER EDUCATION : THE OFFICIAL JOURNAL OF THE AMERICAN ASSOCIATION FOR CANCER EDUCATION 2014; 29:709-19. [PMID: 24706196 PMCID: PMC4532283 DOI: 10.1007/s13187-014-0643-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
We describe the development of a psychoeducational intervention (PEI) to increase uptake of genetic counseling targeted to high-risk breast cancer survivors. Based on previous research, scientific literature, and a review of cancer education websites, we identified potential PEI content. We then assessed the initial acceptability and preference of two booklets of identical content but different layouts, by presenting the booklets to individuals with a personal or family history of breast cancer (n = 57). The preferred booklet was evaluated by two focus groups of ten breast cancer patients who had not attended genetic counseling. The booklet was refined based on participants' feedback at each stage. Focus group participants generally found the booklet visually appealing, informative, and helpful, but some thought that it was too long. Final changes were made based on learner verification principles of attraction, comprehension, cultural acceptability, and persuasion. This project produced an interventional tool to present key constructs that may facilitate decision making about risk-appropriate genetic counseling uptake among high-risk breast cancer survivors. The process described for creating, testing, and adapting materials from a patient perspective can be used for developing other PEIs. This newly developed, unique PEI can be used in many clinical settings.
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Affiliation(s)
- Susan T Vadaparampil
- Health Outcomes and Behavior Program, Moffitt Cancer Center, 12902 Magnolia Drive, Tampa, FL, 33612, USA,
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30
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Pal T, Bonner D, Cragun D, Johnson S, Akbari M, Servais L, Narod S, Vadaparampil S. BRCA sequencing and large rearrangement testing in young Black women with breast cancer. J Community Genet 2013; 5:157-65. [PMID: 24013928 DOI: 10.1007/s12687-013-0166-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2013] [Accepted: 08/09/2013] [Indexed: 11/26/2022] Open
Abstract
Young Black women in the United States are disproportionately afflicted with breast cancer, a proportion of which may be due to BRCA1 and BRCA2 (BRCA) gene mutations. In a cancer registry-based sample of young Black women with breast cancer, we evaluated: (1) the prevalence of BRCA mutations detected through full gene sequencing and large rearrangements testing and (2) proportions that accessed genetic services pre-dating study enrollment. Black women diagnosed with invasive breast cancer ≤age 50 years in 2009-2012 were recruited through the Florida Cancer Registry. Participants completed genetic counseling, a study questionnaire, and consent for medical record release. Saliva specimens were collected for BRCA testing. Overall, 13 participants (9 %) had BRCA mutations detected (including 11 through full gene sequencing and two through large rearrangements testing). One of these large rearrangements, BRCA1 (delExon8), was identified in a participant who had previously tested negative on clinical comprehensive BRCAnalysis that was performed prior to undergoing a lumpectomy. Although all 144 participants met national criteria for referral for cancer genetic risk assessment, 61 (42 %) were referred for genetic counseling and/or had genetic testing preceding study enrollment, and only 20 (14 %) received genetic counseling. Our findings emphasize the importance of large rearrangements testing to increase detection of deleterious BRCA mutations in young Black women with breast cancer. The registry-based design of our study increase the generalizability of findings compared with efforts focused on clinic-based populations. Furthermore, results suggest efforts are needed to improve access to genetic counseling and testing.
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Affiliation(s)
- Tuya Pal
- Population Sciences, Moffitt Cancer Center, 12902 Magnolia Drive, Tampa, FL, 33612, USA,
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31
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Ortiz AP, Frías O, Pérez J, Cabanillas F, Martínez L, Sánchez C, Capó-Ramos DE, González-Keelan C, Mora E, Suárez E. Breast cancer molecular subtypes and survival in a hospital-based sample in Puerto Rico. Cancer Med 2013; 2:343-50. [PMID: 23930211 PMCID: PMC3699846 DOI: 10.1002/cam4.78] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2013] [Revised: 02/27/2013] [Accepted: 03/08/2013] [Indexed: 12/31/2022] Open
Abstract
Information on the impact of hormone receptor status subtypes in breast cancer (BC) prognosis is still limited for Hispanics. We aimed to evaluate the association of BC molecular subtypes and other clinical factors with survival in a hospital-based female population of BC cases in Puerto Rico. We analyzed 663 cases of invasive BC diagnosed between 2002 and 2005. Information on HER-2/neu (HER-2) overexpression, estrogen (ER), and progesterone (PR) receptor status and clinical characteristics were retrieved from hospitals cancer registries and record review. Survival probabilities by covariates of interest were described using the Kaplan–Meier estimators. Cox proportional hazards models were employed to assess factors associated with risk of BC death. Overall, 17.3% of BC cases were triple-negative (TN), 61.8% were Luminal-A, 13.3% were Luminal-B, and 7.5% were HER-2 overexpressed. In the multivariate Cox model, among patients with localized stage, women with TN BC had higher risk of death (adjusted hazard ratio [HR]: 2.57, 95% confidence interval [CI]: 1.29–5.12) as compared to those with Luminal-A status, after adjusting for age at diagnosis. In addition, among women with regional/distant stage at diagnosis, those with TN BC (HR: 5.48, 95% CI: 2.63–11.47) and those HER-2+, including HER-2 overexpressed and Luminal-B, (HR: 2.73, 95% CI:1.30–5.75) had a higher mortality. This is the most comprehensive epidemiological study to date on the impact of hormone receptor expression subtypes in BC survival in Puerto Rico. Consistent to results in other populations, the TN subtype and HER-2+ tumors were associated with decreased survival.
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Affiliation(s)
- Ana Patricia Ortiz
- Cancer Control and Population Sciences Program, University of Puerto Rico Comprehensive Cancer Center, San Juan, PR 00927, USA.
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