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Sanchez-Covarrubias AP, Chery MJ, Barreto-Coehlo P, Alexis C, Ali J, Diaz-Barbe A, Butler R, Bowe S, Curling D, DeGennaro V, Dodds LV, Dyer H, Halliday D, Jeudin P, Lowe D, Samaroo K, Wharfe G, Schlumbrecht M, Reis IM, Hurley J, George S. Reproductive Risk Factor Patterns in Caribbean Women With Breast Cancer Across 4 Generations. JAMA Netw Open 2024; 7:e2438091. [PMID: 39378034 DOI: 10.1001/jamanetworkopen.2024.38091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/10/2024] Open
Abstract
Importance Breast cancer (BC) is commonly diagnosed among Caribbean women. Shifts in reproductive patterns modify the incidence of BC diagnosis and age at BC diagnosis in population-based studies; however, reproductive patterns in Caribbean women remain understudied. Objective To describe the temporal trends in reproductive patterns and age at BC diagnosis in Caribbean-born women. Design, Setting, and Participants A cross-sectional observational study-the Caribbean Women's Cancer Study-was conducted, with data on reproductive patterns known to affect BC risk collected in The Bahamas, Barbados, Cayman Islands, Dominica, Haiti, Jamaica, and Trinidad and Tobago. Participants were recruited prospectively. The sample included women born in Caribbean countries and diagnosed with invasive BC and/or ovarian cancer from June 1, 2010, to June 30, 2018, and was divided into 4 birth cohorts (born before 1950, 1950-1959, 1960-1969, and in or after 1970). Data were analyzed between August 1, 2023, and July 31, 2024. Exposures Receipt of a BC diagnosis and birth in a Caribbean country. Main Outcomes and Measures Change in reproductive patterns between birth cohorts, including age at BC diagnosis, family history of cancer, age at first pregnancy, number of pregnancies, number of full-term pregnancies, number of siblings, age at menarche and menopause, estrogen receptor status, and germline pathogenic/likely pathogenic variants. Results Of 1015 participants diagnosed with BC and ovarian cancer, 995 women (mean [SD] age, 46.6 [10.8] years; 605 [81.8%] Afro-Caribbean, 98 [13.2%] East Indian, 22 [3.0%] White, and 12 [1.6%] >1 race) received a diagnosis of invasive BC. Comparison from older to younger birth cohorts (presented in the order of born before 1950, 1950-1959, 1960-1969 and in or after 1970) showed an increased proportion of women experiencing menarche at age 12 years or younger (33.0% vs 47.3% vs 45.5% vs 57.9%; P < .001), women with no pregnancies (6.8% vs 6.8% vs 10.5% vs 22.8%; P < .001), and nulliparous women (8.6% vs 9.2% vs 13.9% vs 27.6%; P < .001). Younger age at BC diagnosis was observed in women experiencing menarche at age 12 years or younger (mean [SD], 45.0 [10.5] years) vs 15 years or older (mean [SD], 49.1 [11.2] years) and in nulliparous women (mean [SD], 42.1 [11.2] years) vs 3 or more full-term pregnancies (mean [SD], 49.9 [10.6] years; P < .001). For every year of first pregnancy delay, women had a 4% increased chance of being diagnosed with estrogen receptor-positive tumors (odds ratio, 1.04; 95% CI, 1.01-1.08; P = .02). Conclusions and Relevance In this cross-sectional study, between each 10-year birth cohort, women diagnosed with BC had a lower age at menarche, number of pregnancies, and number of full-term pregnancies. These findings suggest that interventions targeting other BC risk factors need to be implemented.
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Affiliation(s)
- Alex P Sanchez-Covarrubias
- Cancer Biology Graduate Program, Miller School of Medicine, University of Miami, Miami, Florida
- Division of Gynecologic Oncology, Department of Obstetrics, Gynecology, and Reproductive Sciences, Miller School of Medicine, University of Miami, Miami, Florida
- Sylvester Comprehensive Cancer Center, Miami, Florida
| | - Maurice J Chery
- Division of Gynecologic Oncology, Department of Obstetrics, Gynecology, and Reproductive Sciences, Miller School of Medicine, University of Miami, Miami, Florida
- Sylvester Comprehensive Cancer Center, Miami, Florida
- Division of Prevention Science, Department of Public Health Sciences, Miller School of Medicine, University of Miami, Miami, Florida
| | - Priscilla Barreto-Coehlo
- Division of Gynecologic Oncology, Department of Obstetrics, Gynecology, and Reproductive Sciences, Miller School of Medicine, University of Miami, Miami, Florida
- Division of Medical Oncology, Department of Medicine, Miller School of Medicine, University of Miami, Miami, Florida
| | - Cheryl Alexis
- University of the West Indies-Cave Hill, Bridgetown, Barbados
| | - Jameel Ali
- St James Medical Complex, North Northwest Regional Health Authority, Port-of-Spain, Trinidad and Tobago
| | - Alexandra Diaz-Barbe
- Division of Gynecologic Oncology, Department of Obstetrics, Gynecology, and Reproductive Sciences, Miller School of Medicine, University of Miami, Miami, Florida
- Sylvester Comprehensive Cancer Center, Miami, Florida
| | - Raleigh Butler
- Department of Obstetrics and Gynecology, School of Clinical Medicine and Research, Princess Margaret Hospital, University of the West Indies, Nassau, The Bahamas
| | - Saida Bowe
- Department of Obstetrics and Gynecology, School of Clinical Medicine and Research, Princess Margaret Hospital, University of the West Indies, Nassau, The Bahamas
| | - DuVaughn Curling
- Department of Obstetrics and Gynecology, School of Clinical Medicine and Research, Princess Margaret Hospital, University of the West Indies, Nassau, The Bahamas
| | | | - Leah V Dodds
- Division of Gynecologic Oncology, Department of Obstetrics, Gynecology, and Reproductive Sciences, Miller School of Medicine, University of Miami, Miami, Florida
- Sylvester Comprehensive Cancer Center, Miami, Florida
- Division of Prevention Science, Department of Public Health Sciences, Miller School of Medicine, University of Miami, Miami, Florida
| | - Hedda Dyer
- Ross University School of Medicine, St Michael, Barbados
| | - Darron Halliday
- Department of Obstetrics and Gynecology, School of Clinical Medicine and Research, Princess Margaret Hospital, University of the West Indies, Nassau, The Bahamas
| | - Patricia Jeudin
- Division of Gynecologic Oncology, Department of Obstetrics, Gynecology, and Reproductive Sciences, Miller School of Medicine, University of Miami, Miami, Florida
- Sylvester Comprehensive Cancer Center, Miami, Florida
| | - Dwight Lowe
- University of the West Indies-Mona, Kingston, Jamaica
| | - Kristy Samaroo
- St James Medical Complex, North Northwest Regional Health Authority, Port-of-Spain, Trinidad and Tobago
| | - Gillian Wharfe
- University of the West Indies-Mona, Kingston, Jamaica
- Cayman Islands Cancer Society, Grand Cayman, Cayman Islands
| | - Matthew Schlumbrecht
- Division of Gynecologic Oncology, Department of Obstetrics, Gynecology, and Reproductive Sciences, Miller School of Medicine, University of Miami, Miami, Florida
- Sylvester Comprehensive Cancer Center, Miami, Florida
| | - Isildinha M Reis
- Sylvester Comprehensive Cancer Center, Miami, Florida
- Division of Statistics, Department of Public Health Sciences, Miller School of Medicine, University of Miami, Miami, Florida
| | - Judith Hurley
- Sylvester Comprehensive Cancer Center, Miami, Florida
- Division of Medical Oncology, Department of Medicine, Miller School of Medicine, University of Miami, Miami, Florida
| | - Sophia George
- Division of Gynecologic Oncology, Department of Obstetrics, Gynecology, and Reproductive Sciences, Miller School of Medicine, University of Miami, Miami, Florida
- Sylvester Comprehensive Cancer Center, Miami, Florida
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Badal K, Monroe N, Mohamed A, Maniam A, Badal M, Maharaj K. A Cancer Patient Navigation Training Program for Limited-Resource Settings: Results from 5 Years of Training. JOURNAL OF CANCER EDUCATION : THE OFFICIAL JOURNAL OF THE AMERICAN ASSOCIATION FOR CANCER EDUCATION 2024:10.1007/s13187-024-02511-z. [PMID: 39316342 DOI: 10.1007/s13187-024-02511-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 09/17/2024] [Indexed: 09/25/2024]
Abstract
Limited research exists on the effectiveness of cancer patient navigation (CPN) in limited-resource countries which are challenging for patients to navigate. The aim of this study was to report on the workflow, resources developed, and outcomes of pilot CPN program developed by the Caribbean Cancer Research Institute (CCRI) in the limited-resource country of Trinidad and Tobago. Three part-time navigators and a part-time program manager were trained in CPN and hired by the CCRI. A network of local service providers, program policies, an electronic medical records system, and informational blog posts were developed to support the pilot. Patients were referred at monthly multi-disciplinary team meetings of the Sangre Grande Hospital. Navigators provided navigation services for a maximum of 10 h. Changes in distress before and after navigation were measured using the National Comprehensive Cancer Network distress thermometer and evaluated using a paired t-test. Patient satisfaction with the navigator and the navigation service was evaluated in a post-navigation survey. One hundred and fifty-eight breast, prostate, pancreatic, and colon cancer patients were navigated. There was an average of 14 contacts between patient and navigator with an average of 30 min per contact. There were 631 barriers identified of which physical (27%; n = 172), informational (26%; n = 164), and emotional or psychological (25%; n = 158) were the top three most frequently reported. Resolutions were offered for 62% (n = 391) of reported barriers. The CPN intervention resulted in a statistically significant reduction in patient distress overall (- 2.4 [2.07-2.79], < 0.001) and across most patient subgroups. Almost all patients reported high satisfaction with navigation. CPN significantly improved patient distress, and patients reported high satisfaction with navigation in the limited-resource setting of Trinidad and Tobago.
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Affiliation(s)
- Kimberly Badal
- Caribbean Cancer Research Institute, El Socorro, Trinidad and Tobago
- Department of Surgery, University of California, San Francisco, USA
| | - Nalisha Monroe
- Caribbean Cancer Research Institute, El Socorro, Trinidad and Tobago
| | - Alisha Mohamed
- Caribbean Cancer Research Institute, El Socorro, Trinidad and Tobago
| | - Akash Maniam
- Caribbean Cancer Research Institute, El Socorro, Trinidad and Tobago.
- Portsmouth Hospitals University NHS Trust, Portsmouth, England, PO6 3LY, UK.
| | - Michelle Badal
- Caribbean Cancer Research Institute, El Socorro, Trinidad and Tobago
| | - Kamira Maharaj
- Caribbean Cancer Research Institute, El Socorro, Trinidad and Tobago
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Cerbon D, Taylor D, Barreto-Coelho P, Rodriguez E, Schlumbrecht M, Hurley J, George SHL. The Genetic Paradigm of Hereditary Breast and Ovarian Cancer (HBOC) in the Afro-Caribbean Population. Crit Rev Oncog 2024; 29:99-112. [PMID: 38683157 DOI: 10.1615/critrevoncog.2024051599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/01/2024]
Abstract
Differences in tumor biology and genetic predisposition have been suggested as factors influencing overall survival and increased mortality in Black breast and ovarian cancer patients. Therefore, it is key to evaluate genetic susceptibilities in Afro-Caribbean patients because the black population in the US is not homogeneous. Identifying a high incidence of hereditary breast and ovarian cancer (HBOC) in Afro-Caribbean countries can lead to understanding the pattern of inherited traits in US-Caribbean immigrants and their subsequent generations. The paucity of projects studying the genetic landscape in these populations makes it difficult to design studies aimed at optimizing screening and prophylaxis strategies, which in turn, improve survival and mortality rates. This scoping review identifies and categorizes current research on the genetic paradigm of HBOC in the Afro-Caribbean population. We performed an evaluation of the evidence and generated a summary of findings according to preferred reporting items for systematic review and meta-analysis (PRISMA) Extension for Scoping Reviews guidelines. We included articles that assessed the incidence and prevalence of pathologic germline mutations and experience/barriers for genetic testing in Afro-Caribbean Countries and US-Caribbean patients. Our results highlight countries where genetic landscapes remain severely understudied and support recommending multigene testing in Caribbean-born patients. They highlight a need for further research on the genetic paradigm of HBOC in the Afro-Caribbean population to improve genetic testing/counseling and the subsequent adoption of early detection and risk reduction strategies.
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Affiliation(s)
- Danielle Cerbon
- Sylvester Comprehensive Cancer Center, Department of Radiation Oncology. University of Miami/Jackson Memorial Hospital, Miami, FL, USA
| | - Daphanie Taylor
- Christus St. Michael W. Temple Webber Cancer Center, Texarkana, TX
| | - Priscila Barreto-Coelho
- Sylvester Comprehensive Cancer Center, Miami, FL, USA; Division of Medical Oncology, Department of Medicine, University of Miami/Jackson Memorial Hospital, Miami, FL, USA
| | - Estelamari Rodriguez
- Sylvester Comprehensive Cancer Center, Miami, FL, USA; Division of Medical Oncology, Department of Medicine, University of Miami/Jackson Memorial Hospital, Miami, FL, USA
| | - Matthew Schlumbrecht
- Division of Gynecology Oncology, Department of Obstetrics and Gynecology, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Judith Hurley
- Division of Medical Oncology, Department of Medicine, University of Miami/Jackson Memorial Hospital, Miami, FL, USA
| | - Sophia H L George
- Sylvester Comprehensive Cancer Center, Miami, FL, USA; Division of Gynecology Oncology, Department of Obstetrics and Gynecology, Miller School of Medicine, University of Miami, Miami, FL, USA
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Beaubrun-Renard MM, Veronique-Baudin J, Macni J, Ulric-Gervaise S, Almont T, Aline-Fardin A, Grossat N, Furtos C, Escarmant P, Vinh-Hung V, Bougas S, Cabie A, Joachim C. Overall survival of triple negative breast cancer in French Caribbean women. PLoS One 2022; 17:e0271966. [PMID: 36001624 PMCID: PMC9401158 DOI: 10.1371/journal.pone.0271966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 07/11/2022] [Indexed: 12/04/2022] Open
Abstract
To describe survival according to prognostic factors of women with breast cancer in French overseas territory (Martinique) during 2008–2017. We performed a Cox model for prognostic factors for OS in breast cancer patients. The cut-off date for the analysis was 13/10/2018. The main factors were demographic data, stage, hormone receptors (HR) status and HER2 status. Curves were compared with the log rank test to select candidate variables for the multivariate analysis. We included 1,708 patients; median age at diagnosis was 57 years. Triple negative breast cancer (TNBC) accounted for 20.9% (n = 332). Among the patients, 72.3% (n = 1015) had localised or local spread cancer. One-year OS was 95.2% and was 80.1% at 5 years. In TNBC, 1-year-survival was 90.4%, which fell to 70.1% at 5 years. Patients with metastatic disease at diagnosis had 1-year-survival of 74.5%, and 20.1% at 5 years. Multivariate analysis by Cox regression identified 4 factors significantly associated with an increased risk of death: metastatic disease at diagnosis (hazard ratio (HR) = 15, p<0.0001), TNBC (HR 2.84, p<0.0001), HR+/HER2- status (HR 2.05, p<0.0084) and age >75 years (HR 3.8, p<0.0001). This is the first study performed on breast cancer survival in Martinique. Our findings show that breast cancer has overall good prognosis in patients and also how prognosis factors are distributed in the population.
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Affiliation(s)
- Murielle Murielle Beaubrun-Renard
- UF 1441 Registre Général des cancers de la Martinique, Pôle de Cancérologie Hématologie Urologie, CHU de Martinique, Fort-de-France, Martinique, France
- PCCEI, Université de Montpellier, INSERM, EFS, Université Antilles, Montpellier, France
- * E-mail:
| | - Jacqueline Veronique-Baudin
- UF 3596 Recherche en cancérologie hématologie, Pôle de Cancérologie Hématologie Urologie, CHU de Martinique, Fort-de-France, Martinique, France
| | - Jonathan Macni
- UF 1441 Registre Général des cancers de la Martinique, Pôle de Cancérologie Hématologie Urologie, CHU de Martinique, Fort-de-France, Martinique, France
| | - Stephen Ulric-Gervaise
- UF 1441 Registre Général des cancers de la Martinique, Pôle de Cancérologie Hématologie Urologie, CHU de Martinique, Fort-de-France, Martinique, France
| | - Thierry Almont
- UF 3596 Recherche en cancérologie hématologie, Pôle de Cancérologie Hématologie Urologie, CHU de Martinique, Fort-de-France, Martinique, France
| | - Aude Aline-Fardin
- Laboratoire d’anatomopathologie, Pôle de Biologie, CHU de Martinique, Fort-de-France, Martinique, France
| | - Nathalie Grossat
- UF 1450 - Oncologie Médicale Hospitalisation de Semaine, Pôle de Cancérologie Hématologie Urologie, CHU de Martinique, Fort-de-France, Martinique, France
| | - Cristina Furtos
- UF 1450 - Oncologie Médicale Hospitalisation de Semaine, Pôle de Cancérologie Hématologie Urologie, CHU de Martinique, Fort-de-France, Martinique, France
| | - Patrick Escarmant
- Pôle de Cancérologie Hématologie Urologie, CHU de Martinique, Fort-de-France, Martinique, France
| | - Vincent Vinh-Hung
- UF 1401 Radiothérapie, Pôle de Cancérologie Hématologie Urologie, CHU de Martinique, Fort-de-France, Martinique, France
| | - Stefanos Bougas
- UF 1401 Radiothérapie, Pôle de Cancérologie Hématologie Urologie, CHU de Martinique, Fort-de-France, Martinique, France
| | - André Cabie
- PCCEI, Université de Montpellier, INSERM, EFS, Université Antilles, Montpellier, France
- Service des maladies infectieuses et tropicales, Martinique, CHU de Martinique, Fort-de-France, Martinique, France
- CIC-1424, INSERM, CHU de Martinique, Fort-de-France, Martinique, France
| | - Clarisse Joachim
- UF 1441 Registre Général des cancers de la Martinique, Pôle de Cancérologie Hématologie Urologie, CHU de Martinique, Fort-de-France, Martinique, France
- PCCEI, Université de Montpellier, INSERM, EFS, Université Antilles, Montpellier, France
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5
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Salman G, Aldujaily E, Jabardi M, Qassid OL. Investigating the clinical significance of EGFR expression using machine learning in a series of Iraqi patients with triple-negative breast cancer. J Med Life 2022; 15:967-978. [PMID: 36188649 PMCID: PMC9514808 DOI: 10.25122/jml-2021-0401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 03/14/2022] [Indexed: 11/05/2022] Open
Abstract
Breast cancer is a heterogeneous disease with a distinct profile of the expression of each tumor. Triple-negative breast cancer (TNBC) is a molecular subtype of breast cancer characterized by an aggressive clinical behavior linked to loss or reduced expression of estrogen, progesterone, and Her2/neu receptors. The study's main objective was to investigate the clinical significance of epidermal growth factor receptor (EGFR) overexpression in a series of Iraqi patients with TNBC. The sectional analytic study involved immunohistochemical analysis of EGFR expression in randomly selected 53 formalin fixed paraffin embedded tissue blocks of TNBC cases out of 127 Iraqi patients with TNBC and correlated expression data with clinicopathological parameters including survival time. Machine learning (statistical tests and principal component analysis (PCA)) was used to predict the outcome of the patients using EGFR expression data together with clinicopathological parameters. EGFR was expressed in approximately 28% of TNBC cases. We estimated the risk of mortality and distant metastasis based on EGFR expression and clinicopathologic factors using the principal component analysis (PCA) model. We found a substantial positive correlation between clinical stage and distant metastasis, clinical stage and death, death and distant metastasis, and death and positive EGFR expression. Overall, EGFR expression was linked to a poor prognosis and increased mortality. A higher risk of distant metastasis and death was associated with an advanced clinical stage of the tumor. Furthermore, the existence of distant metastases increased the risk of death. These findings raise the possibility of using EGFR expression data with other clinicopathological parameters to predict the outcome of patients with TNBC.
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Affiliation(s)
- Gufran Salman
- Department of Basic Science, Faculty of Dentistry, University of Kufa, Kufa, Iraq
| | - Esraa Aldujaily
- Department of Pathology and Forensic Medicine, Faculty of Medicine, University of Kufa, Kufa, Iraq,Corresponding Author: Esraa Aldujaily, Department of Pathology and Forensic Medicine, Faculty of Medicine, University of Kufa, Kufa, Iraq. E-mail:
| | - Mohammed Jabardi
- Department of Computer Science, College of Education, University of Kufa, Kufa, Iraq
| | - Omar Layth Qassid
- Cancer Research Center, University of Leicester, Leicester City, United Kingdom
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6
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Hercules SM, Liu X, Bassey-Archibong BBI, Skeete DHA, Smith Connell S, Daramola A, Banjo AA, Ebughe G, Agan T, Ekanem IO, Udosen J, Obiorah C, Ojule AC, Misauno MA, Dauda AM, Egbujo EC, Hercules JC, Ansari A, Brain I, MacColl C, Xu Y, Jin Y, Chang S, Carpten JD, Bédard A, Pond GR, Blenman KRM, Manojlovic Z, Daniel JM. Analysis of the genomic landscapes of Barbadian and Nigerian women with triple negative breast cancer. Cancer Causes Control 2022; 33:831-841. [PMID: 35384527 PMCID: PMC9085672 DOI: 10.1007/s10552-022-01574-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Accepted: 03/12/2022] [Indexed: 11/10/2022]
Abstract
PURPOSE Triple negative breast cancer (TNBC) is an aggressive breast cancer subtype that disproportionately affects women of African ancestry (WAA) and is often associated with poor survival. Although there is a high prevalence of TNBC across West Africa and in women of the African diaspora, there has been no comprehensive genomics study to investigate the mutational profile of ancestrally related women across the Caribbean and West Africa. METHODS This multisite cross-sectional study used 31 formalin-fixed paraffin-embedded (FFPE) samples from Barbadian and Nigerian TNBC participants. High-resolution whole exome sequencing (WES) was performed on the Barbadian and Nigerian TNBC samples to identify their mutational profiles and comparisons were made to African American, European American and Asian American sequencing data obtained from The Cancer Genome Atlas (TCGA). Whole exome sequencing was conducted on tumors with an average of 382 × coverage and 4335 × coverage for pooled germline non-tumor samples. RESULTS Variants detected at high frequency in our WAA cohorts were found in the following genes NBPF12, PLIN4, TP53 and BRCA1. In the TCGA TNBC cases, these genes had a lower mutation rate, except for TP53 (32% in our cohort; 63% in TCGA-African American; 67% in TCGA-European American; 63% in TCGA-Asian). For all altered genes, there were no differences in frequency of mutations between WAA TNBC groups including the TCGA-African American cohort. For copy number variants, high frequency alterations were observed in PIK3CA, TP53, FGFR2 and HIF1AN genes. CONCLUSION This study provides novel insights into the underlying genomic alterations in WAA TNBC samples and shines light on the importance of inclusion of under-represented populations in cancer genomics and biomarker studies.
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Affiliation(s)
- Shawn M. Hercules
- grid.25073.330000 0004 1936 8227Department of Biology, McMaster University, Hamilton, ON Canada
- African Caribbean Cancer Consortium, Philadelphia, PA USA
| | - Xiyu Liu
- grid.42505.360000 0001 2156 6853Department of Translational Genomics, Keck School of Medicine, University of Southern California, Los Angeles, CA USA
| | | | - Desiree H. A. Skeete
- African Caribbean Cancer Consortium, Philadelphia, PA USA
- grid.412886.10000 0004 0592 769XFaculty of Medical Sciences, University of the West Indies at Cave Hill, Bridgetown, Barbados
- grid.415521.60000 0004 0570 5165Department of Pathology, Queen Elizabeth Hospital, Bridgetown, Barbados
| | - Suzanne Smith Connell
- grid.412886.10000 0004 0592 769XFaculty of Medical Sciences, University of the West Indies at Cave Hill, Bridgetown, Barbados
- grid.415521.60000 0004 0570 5165Department of Radiation Oncology, Queen Elizabeth Hospital, Bridgetown, Barbados
- Present Address: Cancer Specialists Inc, Bridgetown, Barbados
| | - Adetola Daramola
- grid.411283.d0000 0000 8668 7085Department of Anatomic and Molecular Pathology, Lagos University Teaching Hospital, Lagos, Nigeria
| | - Adekunbiola A. Banjo
- grid.411283.d0000 0000 8668 7085Department of Anatomic and Molecular Pathology, Lagos University Teaching Hospital, Lagos, Nigeria
| | - Godwin Ebughe
- grid.413097.80000 0001 0291 6387Department of Pathology, University of Calabar Teaching Hospital, Calabar, Nigeria
| | - Thomas Agan
- grid.413097.80000 0001 0291 6387Department of Obstetrics & Gynaecology, College of Medical Sciences, University of Calabar Teaching Hospital, Calabar, Nigeria
| | - Ima-Obong Ekanem
- grid.413097.80000 0001 0291 6387Department of Pathology, College of Medical Sciences, University of Calabar Teaching Hospital, Calabar, Nigeria
| | - Joe Udosen
- grid.413097.80000 0001 0291 6387Division of General and Breast Surgery, University of Calabar Teaching Hospital, Calabar, Nigeria
| | - Christopher Obiorah
- grid.412738.bDepartment of Anatomical Pathology, University of Port Harcourt Teaching Hospital, Port Harcourt, Nigeria
| | - Aaron C. Ojule
- grid.412738.bDepartment of Chemical Pathology, University of Port Harcourt Teaching Hospital, Port Harcourt, Nigeria
| | - Michael A. Misauno
- grid.411946.f0000 0004 1783 4052Department of Surgery, Jos University Teaching Hospital, Jos, Nigeria
| | - Ayuba M. Dauda
- grid.411946.f0000 0004 1783 4052Department of Pathology, Jos University Teaching Hospital, Jos, Nigeria
| | | | - Jevon C. Hercules
- grid.12916.3d0000 0001 2322 4996Department of Mathematics, University of the West Indies at Mona, Kingston, Jamaica
- grid.12955.3a0000 0001 2264 7233Present Address: Wang Yanan Institute for Studies in Economics, Xiamen University, Xiamen, China
| | - Amna Ansari
- grid.25073.330000 0004 1936 8227Department of Biology, McMaster University, Hamilton, ON Canada
| | - Ian Brain
- grid.25073.330000 0004 1936 8227Department of Pathology and Molecular Medicine, McMaster University, Hamilton, ON Canada
| | - Christine MacColl
- grid.25073.330000 0004 1936 8227Department of Pathology and Molecular Medicine, McMaster University, Hamilton, ON Canada
| | - Yili Xu
- grid.42505.360000 0001 2156 6853Department of Translational Genomics, Keck School of Medicine, University of Southern California, Los Angeles, CA USA
| | - Yuxin Jin
- grid.42505.360000 0001 2156 6853Department of Translational Genomics, Keck School of Medicine, University of Southern California, Los Angeles, CA USA
| | - Sharon Chang
- grid.42505.360000 0001 2156 6853Department of Translational Genomics, Keck School of Medicine, University of Southern California, Los Angeles, CA USA
| | - John D. Carpten
- grid.42505.360000 0001 2156 6853Department of Translational Genomics, Keck School of Medicine, University of Southern California, Los Angeles, CA USA
| | - André Bédard
- grid.25073.330000 0004 1936 8227Department of Biology, McMaster University, Hamilton, ON Canada
| | - Greg R. Pond
- grid.25073.330000 0004 1936 8227Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, ON Canada
- grid.25073.330000 0004 1936 8227Department of Oncology, McMaster University, Hamilton, ON Canada
| | - Kim R. M. Blenman
- grid.433818.5Department of Internal Medicine, Section of Medical Oncology, Yale Cancer Center, School of Medicine, New Haven, CT USA
- grid.47100.320000000419368710Department of Computer Science, School of Engineering and Applied Science, Yale University, New Haven, CT USA
| | - Zarko Manojlovic
- grid.42505.360000 0001 2156 6853Department of Translational Genomics, Keck School of Medicine, University of Southern California, Los Angeles, CA USA
| | - Juliet M. Daniel
- grid.25073.330000 0004 1936 8227Department of Biology, McMaster University, Hamilton, ON Canada
- African Caribbean Cancer Consortium, Philadelphia, PA USA
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7
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Hercules SM, Alnajar M, Chen C, Mladjenovic SM, Shipeolu BA, Perkovic O, Pond GR, Mbuagbaw L, Blenman KR, Daniel JM. Triple-negative breast cancer prevalence in Africa: a systematic review and meta-analysis. BMJ Open 2022; 12:e055735. [PMID: 35623750 PMCID: PMC9150263 DOI: 10.1136/bmjopen-2021-055735] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
OBJECTIVE The aggressive triple-negative breast cancer (TNBC) subtype disproportionately affects women of African ancestry across the diaspora, but its frequency across Africa has not been widely studied. This study seeks to estimate the frequency of TNBC among African populations. DESIGN Systematic review and meta-analysis using the Grading of Recommendations Assessment, Development and Evaluation (GRADE) framework. DATA SOURCES PubMed, EMBASE, African Journals Online and Web of Science were searched on 25 April 2021. ELIGIBILITY CRITERIA FOR SELECTING STUDIES We included studies that use breast cancer tissue samples from indigenous African women with sample size of eligible participants ≥40 and full receptor status for all three receptors (oestrogen receptor (ER)/progesterone receptor (PR)/human epidermal growth factor receptor 2 (HER2)) reported. DATA EXTRACTION AND SYNTHESIS Two independent reviewers extracted data and assessed risk of bias using the modified assessment tool by Hoy et al. (2012) for prevalence studies. A random-effects meta-analysis was performed, and data were pooled using the inverse-variance method and logit transformation. Pooled frequencies were reported with 95% CIs calculated with the Clopper-Pearson method and heterogeneity quantified with I2 statistic. GRADE assessed the certainty of the evidence. RESULTS 1808 potentially eligible studies were identified of which 67 were included in the systematic review and 60 were included in the meta- analysis. Pooled TNBC frequency across African countries represented was estimated to be 27.0%; 95% CI: 24.0% to 30.2%, I2=94%. Pooled TNBC frequency was highest across West Africa, 45.7% (n=15, 95% CI: 38.8% to 52.8%, I2=91%) and lowest in Central Africa, 14.9% (n=1, 95% CI: 8.9 % to 24.1%). Estimates for TNBC were higher for studies that used Allred guidelines for ER/PR status compared with American Society of Clinical Oncology(ASCO)/College of American Pathologists(CAP) guidelines, and for studies that used older versions of ASCO/CAP guidelines for assessing HER2 status. Certainty of evidence was assessed to be very low using GRADE approach. CONCLUSION TNBC frequency was variable with the highest frequency reported in West Africa. Greater emphasis should be placed on establishing protocols for assessing receptor status due to the variability among studies.
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Affiliation(s)
- Shawn M Hercules
- Biology, McMaster University, Hamilton, Ontario, Canada
- African-Caribbean Cancer Consortium, Philadelphia, Pennsylvania, USA
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Meena Alnajar
- Biology, McMaster University, Hamilton, Ontario, Canada
- Osgoode Hall Law School, York University, Toronto, Ontario, Canada
| | - Chen Chen
- Biology, McMaster University, Hamilton, Ontario, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
| | - Stefan M Mladjenovic
- Biology, McMaster University, Hamilton, Ontario, Canada
- Terrence Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, Ontario, Canada
- Institute of Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Bolade Ajarat Shipeolu
- Biology, McMaster University, Hamilton, Ontario, Canada
- Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Olga Perkovic
- McMaster University Library, McMaster University, Hamilton, Ontario, Canada
| | - Greg R Pond
- Department of Oncology, McMaster University, Hamilton, Ontario, Canada
| | - Lawrence Mbuagbaw
- Department of Health Research Methods, Evidence and Impact, McMaster University, Hamilton, Ontario, Canada
- Department of Anesthesia, McMaster University, Hamilton, Ontario, Canada
- Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada
- Biostatistics Unit, Father Sean O'Sullivan Research Centre, St. Joseph's Healthcare, Hamilton, Ontario, Canada
- Centre for Development of Best Practices in Health (CDBPH), Yaoundé Central Hospital, Yaoundé, Cameroon
- Division of Epidemiology and Biostatistics, Department of Global Health, Stellenbosch University, Cape Town, South Africa
| | - Kim Rm Blenman
- Department of Internal Medicine, Section of Medical Oncology, Yale University Yale Cancer Center, New Haven, Connecticut, USA
- Department of Computer Science, Yale School of Engineering and Applied Science, Yale University, New Haven, Connecticut, USA
| | - Juliet M Daniel
- Biology, McMaster University, Hamilton, Ontario, Canada
- African-Caribbean Cancer Consortium, Philadelphia, Pennsylvania, USA
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Copeland J, Oyedeji A, Powell N, Cherian CJ, Tokumaru Y, Murthy V, Takabe K, Young J. Breast Cancer in Jamaica: Stage, Grade and Molecular Subtype Distributions Across Age Blocks, the Implications for Screening and Treatment. World J Oncol 2021; 12:93-103. [PMID: 34349853 PMCID: PMC8297049 DOI: 10.14740/wjon1389] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 06/21/2021] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Breast cancer is the most commonly diagnosed and leading cause of cancer-related morbidity and mortality in females worldwide. Significant disparities exist in breast cancer incidence and mortalities between low- to middle- and high-income countries. The purpose of this study was to analyze the distribution of prognostic and predictive clinicopathological features of invasive breast cancer at a single institution in Jamaica across three age groups. METHODS Data from patients diagnosed with invasive breast cancer who underwent definitive surgery between August 2017 and September 2018 were identified. The patients were divided into three age groups (< 50, 50 - 59 and > 59 years) and the distribution of tumor size, grade, molecular subtype, nodal status and anatomic stage were determined and compared with the US population registry. Comparisons of the various characteristics were performed using the Fisher's exact test. RESULTS Ninety-nine definitive operations were performed and met the criteria for analysis. Average age at the time of diagnosis was 54 years compared to 62 years reported in the US databases. Thirty-six percent of the patients presented below age 50 years, which was twice the corresponding rate reported for Caucasian females (18%) in the USA. Fifty percent of patients in our registry had axillary lymph node metastases at presentation and they were younger than patients with negative axillary nodes (95% confidence interval (CI) -12.06 to -1.93, P = 0.007). Patients in the age group less than age 50 years were more likely to have advanced stage, high histological grade cancers compared to the older age blocks (95% CI 0.039 - 0.902, P = 0.033). CONCLUSION Invasive breast cancer presents at an earlier age in Jamaican women and is associated with poor prognostic features such as high rates of axillary lymph node metastases, high histological grade, advanced stage, triple-negative subtypes and low luminal A subtypes.
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Affiliation(s)
- Jason Copeland
- Department of Surgical Oncology, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, USA
- Department of General Surgery, Kingston Public Hospital, Kingston, Jamaica, WI
- Department of Surgery, Anesthesia, Radiology and Emergency Medicine, University of West Indies, Mona, Jamaica, WI
| | - Abimbola Oyedeji
- Department of General Surgery, Kingston Public Hospital, Kingston, Jamaica, WI
| | - Neggoshane Powell
- Department of General Surgery, Kingston Public Hospital, Kingston, Jamaica, WI
| | - Cherian J. Cherian
- Department of General Surgery, Kingston Public Hospital, Kingston, Jamaica, WI
- Department of Surgery, Anesthesia, Radiology and Emergency Medicine, University of West Indies, Mona, Jamaica, WI
| | - Yoshihisa Tokumaru
- Department of Surgical Oncology, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, USA
| | - Vijayashree Murthy
- Department of Surgical Oncology, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, USA
| | - Kazuaki Takabe
- Department of Surgical Oncology, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, USA
- Department of Gastroenterological Surgery, Yokohama City University Graduate School of Medicine, Yokohama 236-0004, Japan
- Department of Surgical Oncology, Graduate School of Medicine, Gifu University, 1-1 Yanagido, Gifu 501-1194, Japan
- Department of Gastrointestinal Tract Surgery, Fukushima Medical University School of Medicine, Fukushima 960-1295, Japan
- Department of Surgery, Jacobs School of Medicine and Biomedical Sciences, State University of New York, Buffalo, NY 14263, USA
- Department of Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan
- Department of Breast Surgery and Oncology, Tokyo Medical University, Tokyo 160-8402, Japan
| | - Jessica Young
- Department of Surgical Oncology, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, USA
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9
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Samaroo K, Hosein A, Olivier LK, Ali J. Breast Cancer in the Caribbean. Cureus 2021; 13:e17042. [PMID: 34522520 PMCID: PMC8428164 DOI: 10.7759/cureus.17042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/07/2021] [Indexed: 11/22/2022] Open
Abstract
Breast cancer (BC) is one of the leading causes of death among women globally. In the Caribbean, there is a higher mortality rate compared with North American and European countries which have higher incidence rates. We conducted a literature review to examine the BC dynamic in the Caribbean and determine the areas where further investigations are needed. The PubMed database was used for identifying relevant studies using a combination of specific keyword searches. All studies focusing on BC within the defined Caribbean population were selected for this review. A total of 117 papers were included. The data were organized and presented under the following headings and reported according to the country where available: BC incidence and mortality, patient demographics, clinicopathology, genetics, behavioral risks, diagnosis and treatment, and BC control. Our review uncovered major variability in the incidence, management, etiology, and mortality of BC among Caribbean countries. Low-resource countries are burdened by more advanced disease with expected poorer BC outcomes (i.e., shorter periods of disease-free survival). Countries with established national cancer registries seem to have a better approach to the management of BC. The introduction of cancer treatment programs in association with international nonprofit groups has shown tremendous improvement in quality, accessible cancer care for patients, particularly in low- and middle-income settings. BC research is relatively limited in the Caribbean, lacking in both scope and consistency. The unique Caribbean BC population of diverse ethnicities, environmental influence, immigrants, socioeconomic status, and sociocultural practices allows an optimal opportunity for epidemiological investigations that can provide deeper insights into the status of BC.
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Affiliation(s)
- Kristy Samaroo
- Biomedical Engineering, The University of Trinidad & Tobago, Port of Spain, TTO
| | - Amalia Hosein
- Biomedical Engineering, The University of Trinidad & Tobago, Port of Spain, TTO
| | - Lyronne K Olivier
- General Surgeon/Breast Surgical Oncologist, Sangre Grande General Hospital, Port of Spain, TTO
| | - Jameel Ali
- Surgery, University of Toronto, Toronto, CAN
- Breast Unit, St. James Medical Complex, Port of Spain, TTO
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10
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George SHL, Donenberg T, Alexis C, DeGennaro V, Dyer H, Yin S, Ali J, Butler R, Chin SN, Curling D, Lowe D, Lunn J, Turnquest T, Wharfe G, Cerbon D, Barreto-Coelho P, Schlumbrecht MP, Akbari MR, Narod SA, Hurley JE. Gene Sequencing for Pathogenic Variants Among Adults With Breast and Ovarian Cancer in the Caribbean. JAMA Netw Open 2021; 4:e210307. [PMID: 33646313 PMCID: PMC7921902 DOI: 10.1001/jamanetworkopen.2021.0307] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
IMPORTANCE Rates of breast and ovarian cancer are high in the Caribbean; however, to date, few published data quantify the prevalence of inherited cancer in the Caribbean population. OBJECTIVE To determine whether deleterious variants in genes that characterize the hereditary breast and ovarian cancer syndrome are associated with the development of breast and ovarian cancer in the English- and Creole-speaking Caribbean populations. DESIGN, SETTING, AND PARTICIPANTS This multisite genetic association study used data from germline genetic test results between June 2010 and June 2018 in the Bahamas, Cayman Islands, Barbados, Dominica, Jamaica, Haiti, and Trinidad and Tobago. Next-generation sequencing on a panel of 30 genes and multiplex ligation-dependent probe amplification (BRCA1 and BRCA2) were performed. Medical records were reviewed at time of study enrollment. Women and men diagnosed with breast and ovarian cancer with at least 1 grandparent born in the participating study sites were included; 1018 individuals were eligible and consented to participate in this study. Data were analyzed from November 4, 2019, to May 6, 2020. EXPOSURES Breast and/or ovarian cancer diagnosis. MAIN OUTCOMES AND MEASURES Rate of inherited breast and ovarian cancer syndrome and spectrum and types of variants. RESULTS Of 1018 participants, 999 (98.1%) had breast cancer (mean [SD] age, 46.6 [10.8] years) and 21 (2.1%) had ovarian cancer (mean [SD] age, 47.6 [13.5] years). Three individuals declined to have their results reported. A total of 144 of 1015 (14.2%) had a pathogenic or likely pathogenic (P/LP) variant in a hereditary breast and ovarian cancer syndrome gene. A total of 64% of variant carriers had P/LP variant in BRCA1, 23% in BRCA2, 9% in PALB2 and 4% in RAD51C, CHEK2, ATM, STK11 and NBN. The mean (SD) age of variant carriers was 40.7 (9.2) compared with 47.5 (10.7) years in noncarriers. Individuals in the Bahamas had the highest proportion of hereditary breast and ovarian cancer (23%), followed by Barbados (17.9%), Trinidad (12%), Dominica (8.8%), Haiti (6.7%), Cayman Islands (6.3%), and Jamaica (4.9%). In Caribbean-born women and men with breast cancer, having a first- or second-degree family member with breast cancer was associated with having any BRCA1 or BRCA2 germline variant (odds ratio, 1.58; 95% CI, 1.24-2.01; P < .001). A BRCA1 vs BRCA2 variant was more strongly associated with triple negative breast cancer (odds ratio, 6.33; 95% CI, 2.05-19.54; P = .001). CONCLUSIONS AND RELEVANCE In this study, among Caribbean-born individuals with breast and ovarian cancer, 1 in 7 had hereditary breast and ovarian cancer. The proportion of hereditary breast and ovarian cancer varied by island and ranged from 23% in the Bahamas to 4.9% in Jamaica. Each island had a distinctive set of variants.
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Affiliation(s)
- Sophia H. L. George
- Division of Gynecologic Oncology, Department of Obstetrics, Gynecology and Reproductive Sciences, University of Miami, Miami, Florida
- Sylvester Comprehensive Cancer Center, Miami, Florida
- Leonard Miller School of Medicine, University of Miami, Miami, Florida
| | - Talia Donenberg
- Sylvester Comprehensive Cancer Center, Miami, Florida
- Leonard Miller School of Medicine, University of Miami, Miami, Florida
- Department of Genetics, University of Miami, Miami, Florida
| | - Cheryl Alexis
- Faculty of Medical Sciences, University of West Indies-Cave Hill, Barbados
| | | | - Hedda Dyer
- Ross University School of Medicine, Commonwealth of Dominica (now in Barbados)
| | - Sook Yin
- Cayman Islands Cancer Society, Grand Cayman, Cayman Islands
| | - Jameel Ali
- St. James Medical Complex, Northwest Regional Health Authority, Port-of-Spain, Trinidad and Tobago
| | - Raleigh Butler
- Princess Margaret Hospital, University of the West Indies, School of Clinical Medicine and Research, Nassau, Bahamas
| | - Sheray N. Chin
- Department of Pathology, University of West Indies-Mona, Kingston, Jamaica
| | - DuVaughn Curling
- Princess Margaret Hospital, University of the West Indies, School of Clinical Medicine and Research, Nassau, Bahamas
| | - Dwight Lowe
- Department of Pathology, University of West Indies-Mona, Kingston, Jamaica
| | - John Lunn
- Princess Margaret Hospital, University of the West Indies, School of Clinical Medicine and Research, Nassau, Bahamas
| | - Theodore Turnquest
- Princess Margaret Hospital, University of the West Indies, School of Clinical Medicine and Research, Nassau, Bahamas
| | - Gilian Wharfe
- Department of Pathology, University of West Indies-Mona, Kingston, Jamaica
| | - Danielle Cerbon
- Sylvester Comprehensive Cancer Center, Miami, Florida
- Division of Medical Oncology, Department of Medicine, University of Miami, Miami, Florida
| | - Priscila Barreto-Coelho
- Sylvester Comprehensive Cancer Center, Miami, Florida
- Division of Medical Oncology, Department of Medicine, University of Miami, Miami, Florida
| | - Matthew P. Schlumbrecht
- Division of Gynecologic Oncology, Department of Obstetrics, Gynecology and Reproductive Sciences, University of Miami, Miami, Florida
- Sylvester Comprehensive Cancer Center, Miami, Florida
- Leonard Miller School of Medicine, University of Miami, Miami, Florida
| | - Mohammad R. Akbari
- Women’s College Research Institute, Women’s College Hospital, University of Toronto, Toronto, Canada
| | - Steven A. Narod
- Women’s College Research Institute, Women’s College Hospital, University of Toronto, Toronto, Canada
| | - Judith E. Hurley
- Sylvester Comprehensive Cancer Center, Miami, Florida
- Leonard Miller School of Medicine, University of Miami, Miami, Florida
- Division of Medical Oncology, Department of Medicine, University of Miami, Miami, Florida
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Li N, Li Z, Li X, Chen B, Sun H, Zhao K. Identification of an immune-related long noncoding RNA signature that predicts prognosis in breast cancer patients. Biomark Med 2021; 15:167-180. [PMID: 33496624 DOI: 10.2217/bmm-2020-0268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Accepted: 11/02/2020] [Indexed: 12/24/2022] Open
Abstract
Aim: The purpose of this study was to identify an immune-related long noncoding RNA (lncRNA) signature that predicts the prognosis of breast cancer. Materials & methods: The expression profiles of breast cancer were downloaded from The Cancer Genome Atlas. Cox regression analysis was used to identify an immune-related lncRNA signature. Results: The five immune-related lncRNAs could be used to construct a breast cancer survival prognosis model. The receiver operating characteristic curve evaluation found that the accuracy of the model for predicting the 1-, 3- and 5-year prognosis of breast cancer was 0.688, 0.708 and 0.686. Conclusion: This signature may have an important clinical significance for improving predictive results and guiding the treatment of breast cancer patients.
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Affiliation(s)
- Na Li
- Breast surgery, The Third Affiliated Hospital of Qiqihar Medical College, Qiqihar, Heilongjiang, 161000, PR China
| | - Zubin Li
- Breast surgery, The Third Affiliated Hospital of Qiqihar Medical College, Qiqihar, Heilongjiang, 161000, PR China
| | - Xin Li
- Breast surgery, The Third Affiliated Hospital of Qiqihar Medical College, Qiqihar, Heilongjiang, 161000, PR China
| | - Bingjie Chen
- Nursing department, The Third Affiliated Hospital of Qiqihar Medical College, Qiqihar, Heilongjiang, 161000, PR China
| | - Huibo Sun
- Breast surgery, The Third Affiliated Hospital of Qiqihar Medical College, Qiqihar, Heilongjiang, 161000, PR China
| | - Kun Zhao
- Department of pathology, The Qiqihar Medical College
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Caudatin Isolated from Cynanchum auriculatum Inhibits Breast Cancer Stem Cell Formation via a GR/YAP Signaling. Biomolecules 2020; 10:biom10060925. [PMID: 32570844 PMCID: PMC7355644 DOI: 10.3390/biom10060925] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 06/06/2020] [Accepted: 06/15/2020] [Indexed: 12/24/2022] Open
Abstract
In the complex tumor microenvironment, cancer stem cells (CSCs), a rare population of cells, are responsible for malignant tumor initiation, metastasis, drug resistance and recurrence. Controlling breast CSCs (BCSCs) using natural compounds is a novel potential therapeutic strategy for clinical cancer treatment. In this study, a mammosphere assay-guided isolation protocol including silica gel, a C18 column, gel filtration, and high-pressure liquid chromatography was used to isolate an inhibitory compound from Cynanchum auriculatum extracts. The isolated inhibitory compound was identified as caudatin. Caudatin inhibited breast cancer cell proliferation, mammosphere formation and tumor growth. Caudatin decreased the CD44+/CD24− and aldehyde dehydrogenase+ cell proportions and the levels of c-Myc, Oct4, Sox2, and CD44. Caudatin induced ubiquitin (Ub)-dependent glucocorticoid receptor (GR) degradation and blocked subsequent Yes-associated protein (YAP) nuclear accumulation and target gene transcription signals in BCSCs. These results show that the GR/YAP signaling pathway regulates BCSC formation and that caudatin may be a potential chemopreventive agent that targets breast cancer cells and CSCs.
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