1
|
Woriax HE, Thomas SM, Plichta JK, Rosenberger LH, Botty van den Bruele A, Chiba A, Hwang ES, DiNome ML. Racial/Ethnic Disparities in Pathologic Complete Response and Overall Survival in Patients With Triple-Negative Breast Cancer Treated With Neoadjuvant Chemotherapy. J Clin Oncol 2024; 42:1635-1645. [PMID: 38394476 PMCID: PMC11095870 DOI: 10.1200/jco.23.01199] [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: 06/02/2023] [Revised: 12/03/2023] [Accepted: 12/15/2023] [Indexed: 02/25/2024] Open
Abstract
PURPOSE Black women have higher rates of death from triple-negative breast cancer (TNBC) than White women. We hypothesized that pathologic complete response (pCR) to neoadjuvant chemotherapy (NAC) and overall survival (OS) may vary by race/ethnicity in patients with TNBC. METHODS We identified women 18 years and older with stage I-III TNBC who received NAC followed by surgery from the National Cancer Database (2010-2019). We excluded patients without race/ethnicity or pathology data. Primary outcomes were pCR rates and OS on the basis of race/ethnicity. RESULTS Forty thousand eight hundred ninety women with TNBC met inclusion criteria (median age [IQR], 53 [44-61] years): 26,150 Non-Hispanic White (64%, NHW), 9,672 Non-Hispanic Black (23.7%, NHB), 3,267 Hispanic (8%), 1,368 Non-Hispanic Asian (3.3%, NHA), and 433 Non-Hispanic Other (1.1%, NHO) patients. Overall, 29.8% demonstrated pCR (NHW: 30.5%, NHB: 27%, Hispanic: 32.6%, NHA: 28.8%, NHO: 29.8%). Unadjusted OS was significantly higher for those with pCR compared with those with residual disease (5-year OS, 0.917 [95% CI, 0.911 to 0.923] v 0.667 [95% CI, 0.661 to 0.673], log-rank P < .001), and this association persisted after adjustment for demographic and tumor factors. The effect of achieving pCR on OS did not differ by race/ethnicity (interaction P = .10). However, NHB patients were less likely (odds ratio [OR], 0.89 [95% CI, 0.83 to 0.95], P = .001) and Hispanic patients were more likely (OR, 1.19 [95% CI, 1.08 to 1.31], P = .001) to achieve pCR than NHW patients. After adjustment for patient and disease factors, including achievement of pCR, Hispanic (hazard ratio [HR], 0.76 [95% CI, 0.69 to 0.85], P < .001) and NHA (HR, 0.64 [95% CI, 0.55 to 0.75], P < .001) race/ethnicity remained associated with OS. CONCLUSION Odds of achieving pCR and OS in patients with TNBC appear to be associated with race/ethnicity. Additional research is necessary to understand how race/ethnicity is associated with rates of pCR and OS, whether related to socioeconomic factors or biologic variables, or both.
Collapse
Affiliation(s)
- Hannah E. Woriax
- Division of Surgical Oncology, Department of Surgery, Duke University School of Medicine, Durham, NC
- Duke Cancer Institute, Durham, NC
| | - Samantha M. Thomas
- Duke Cancer Institute, Durham, NC
- Department of Biostatistics & Bioinformatics, Duke University School of Medicine, Durham, NC
| | - Jennifer K. Plichta
- Division of Surgical Oncology, Department of Surgery, Duke University School of Medicine, Durham, NC
- Duke Cancer Institute, Durham, NC
| | - Laura H. Rosenberger
- Division of Surgical Oncology, Department of Surgery, Duke University School of Medicine, Durham, NC
- Duke Cancer Institute, Durham, NC
| | - Astrid Botty van den Bruele
- Division of Surgical Oncology, Department of Surgery, Duke University School of Medicine, Durham, NC
- Duke Cancer Institute, Durham, NC
| | - Akiko Chiba
- Division of Surgical Oncology, Department of Surgery, Duke University School of Medicine, Durham, NC
- Duke Cancer Institute, Durham, NC
| | - E. Shelley Hwang
- Division of Surgical Oncology, Department of Surgery, Duke University School of Medicine, Durham, NC
- Duke Cancer Institute, Durham, NC
| | - Maggie L. DiNome
- Division of Surgical Oncology, Department of Surgery, Duke University School of Medicine, Durham, NC
- Duke Cancer Institute, Durham, NC
| |
Collapse
|
2
|
Dell'Aquila K, Vadlamani A, Maldjian T, Fineberg S, Eligulashvili A, Chung J, Adam R, Hodges L, Hou W, Makower D, Duong TQ. Machine learning prediction of pathological complete response and overall survival of breast cancer patients in an underserved inner-city population. Breast Cancer Res 2024; 26:7. [PMID: 38200586 PMCID: PMC10782738 DOI: 10.1186/s13058-023-01762-w] [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: 09/23/2023] [Accepted: 12/29/2023] [Indexed: 01/12/2024] Open
Abstract
BACKGROUND Generalizability of predictive models for pathological complete response (pCR) and overall survival (OS) in breast cancer patients requires diverse datasets. This study employed four machine learning models to predict pCR and OS up to 7.5 years using data from a diverse and underserved inner-city population. METHODS Demographics, staging, tumor subtypes, income, insurance status, and data from radiology reports were obtained from 475 breast cancer patients on neoadjuvant chemotherapy in an inner-city health system (01/01/2012 to 12/31/2021). Logistic regression, Neural Network, Random Forest, and Gradient Boosted Regression models were used to predict outcomes (pCR and OS) with fivefold cross validation. RESULTS pCR was not associated with age, race, ethnicity, tumor staging, Nottingham grade, income, and insurance status (p > 0.05). ER-/HER2+ showed the highest pCR rate, followed by triple negative, ER+/HER2+, and ER+/HER2- (all p < 0.05), tumor size (p < 0.003) and background parenchymal enhancement (BPE) (p < 0.01). Machine learning models ranked ER+/HER2-, ER-/HER2+, tumor size, and BPE as top predictors of pCR (AUC = 0.74-0.76). OS was associated with race, pCR status, tumor subtype, and insurance status (p < 0.05), but not ethnicity and incomes (p > 0.05). Machine learning models ranked tumor stage, pCR, nodal stage, and triple-negative subtype as top predictors of OS (AUC = 0.83-0.85). When grouping race and ethnicity by tumor subtypes, neither OS nor pCR were different due to race and ethnicity for each tumor subtype (p > 0.05). CONCLUSION Tumor subtypes and imaging characteristics were top predictors of pCR in our inner-city population. Insurance status, race, tumor subtypes and pCR were associated with OS. Machine learning models accurately predicted pCR and OS.
Collapse
Affiliation(s)
- Kevin Dell'Aquila
- Department of Radiology, Montefiore Health System and Albert Einstein College of Medicine, 111 E 210th St, Bronx, NY, 10467, USA
| | - Abhinav Vadlamani
- Department of Radiology, Montefiore Health System and Albert Einstein College of Medicine, 111 E 210th St, Bronx, NY, 10467, USA
| | - Takouhie Maldjian
- Department of Radiology, Montefiore Health System and Albert Einstein College of Medicine, 111 E 210th St, Bronx, NY, 10467, USA
| | - Susan Fineberg
- Department of Pathology, Montefiore Health System and Albert Einstein College of Medicine, Bronx, NY, USA
| | - Anna Eligulashvili
- Department of Radiology, Montefiore Health System and Albert Einstein College of Medicine, 111 E 210th St, Bronx, NY, 10467, USA
| | - Julie Chung
- Department of Oncology, Montefiore Health System and Albert Einstein College of Medicine, Bronx, NY, USA
| | - Richard Adam
- Department of Radiology, Montefiore Health System and Albert Einstein College of Medicine, 111 E 210th St, Bronx, NY, 10467, USA
| | - Laura Hodges
- Department of Radiology, Montefiore Health System and Albert Einstein College of Medicine, 111 E 210th St, Bronx, NY, 10467, USA
| | - Wei Hou
- Department of Radiology, Montefiore Health System and Albert Einstein College of Medicine, 111 E 210th St, Bronx, NY, 10467, USA
| | - Della Makower
- Department of Oncology, Montefiore Health System and Albert Einstein College of Medicine, Bronx, NY, USA
| | - Tim Q Duong
- Department of Radiology, Montefiore Health System and Albert Einstein College of Medicine, 111 E 210th St, Bronx, NY, 10467, USA.
- Center for Health Data Innovation, Montefiore Health System and Albert Einstein College of Medicine, Bronx, NY, USA.
| |
Collapse
|
3
|
Ensenyat-Mendez M, Solivellas-Pieras M, Llinàs-Arias P, Íñiguez-Muñoz S, Baker JL, Marzese DM, DiNome ML. Epigenetic Profiles of Triple-Negative Breast Cancers of African American and White Females. JAMA Netw Open 2023; 6:e2335821. [PMID: 37796506 PMCID: PMC10556970 DOI: 10.1001/jamanetworkopen.2023.35821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 08/22/2023] [Indexed: 10/06/2023] Open
Abstract
Importance Triple-negative breast cancer (TNBC) is the most aggressive breast cancer subtype and appears to have disproportionately higher incidence and worse outcomes among younger African American females. Objective To investigate whether epigenetic differences exist in TNBCs of younger African American females that may explain clinical disparities seen in this patient group. Design, Setting, and Participants This cross-sectional study used clinical, demographic, DNA methylation (HumanMethylation450; Illumina), and gene expression (RNA sequencing) data for US patient populations from publicly available data repositories (The Cancer Genome Atlas [TCGA], 2006-2012, and Gene Expression Omnibus [GEO], 2004-2013) accessed on April 13, 2021. White and African American females with TNBC identified in TCGA (69 patients) and a validation cohort of 210 African American patients from GEO (GSE142102) were included. Patients without available race or age data were excluded. Data were analyzed from September 2022 through April 2023. Main Outcomes and Measures DNA methylation and gene expression profiles of TNBC tumors by race (self-reported) and age were assessed. Age was considered a dichotomous variable using age 50 years as the cutoff (younger [<50 years] vs older [≥50 years]). Results A total of 69 female patients (34 African American [49.3%] and 35 White [50.7%]; mean [SD; range] age, 55.7 [11.6; 29-82] years) with TNBC were included in the DNA methylation analysis; these patients and 210 patients in the validation cohort were included in the gene expression analysis (279 patients). There were 1115 differentially methylated sites among younger African American females. The DNA methylation landscape on TNBC tumors in this population had increased odds of enrichment of hormone (odds ratio [OR], 1.82; 95% CI, 1.21 to 2.67; P = .003), muscle (OR, 1.85; 95% CI, 1.44 to 2.36; P < .001), and proliferation (OR, 3.14; 95% CI, 2.71 to 3.64; P < .001) pathways vs other groups (older African American females and all White females). Alterations in regulators of these molecular features in TNBCs of younger African American females were identified involving hormone modulation (downregulation of androgen receptor: fold change [FC] = -2.93; 95% CI, -4.76 to -2.11; P < .001) and upregulation of estrogen-related receptor α (FC = 0.86; 95% CI, 0.34 to 1.38; P = .002), muscle metabolism (upregulation of FOXC1: FC = 1.33; 95% CI, 0.62 to 2.03; P < .001), and proliferation mediators (upregulation of NOTCH1: FC = 0.71; 95% CI, 0.23 to 1.19; P = .004 and MYC (FC = 0.81; 95% CI, 0.18 to 1.45; P = .01). Conclusions and Relevance These findings suggest that TNBC of younger African American females may represent a distinct epigenetic entity and offer novel insight into molecular alterations associated with TNBCs of this population. Understanding these epigenetic differences may lead to the development of more effective therapies for younger African American females, who have the highest incidence and worst outcomes from TNBC of any patient group.
Collapse
Affiliation(s)
- Miquel Ensenyat-Mendez
- Cancer Epigenetics Laboratory at the Cancer Cell Biology Group, Health Research Institute of the Balearic Islands, Palma, Spain
| | - Maria Solivellas-Pieras
- Cancer Epigenetics Laboratory at the Cancer Cell Biology Group, Health Research Institute of the Balearic Islands, Palma, Spain
| | - Pere Llinàs-Arias
- Cancer Epigenetics Laboratory at the Cancer Cell Biology Group, Health Research Institute of the Balearic Islands, Palma, Spain
| | - Sandra Íñiguez-Muñoz
- Cancer Epigenetics Laboratory at the Cancer Cell Biology Group, Health Research Institute of the Balearic Islands, Palma, Spain
| | - Jennifer L. Baker
- Department of Surgery, David Geffen School of Medicine, University California, Los Angeles
| | - Diego M. Marzese
- Cancer Epigenetics Laboratory at the Cancer Cell Biology Group, Health Research Institute of the Balearic Islands, Palma, Spain
- Department of Surgery, Duke University School of Medicine, Durham, North Carolina
| | - Maggie L. DiNome
- Department of Surgery, Duke University School of Medicine, Durham, North Carolina
| |
Collapse
|
4
|
Sarma M, Perimbeti S, Nasir S, Attwood K, Kapoor A, O'Connor T, Early A, Levine EG, Takabe K, Kalinski P, Ambrosone C, Khoury T, Yao S, Gandhi S. Lack of racial differences in clinical outcomes of breast cancer patients receiving neoadjuvant chemotherapy: a single academic center study. Breast Cancer Res Treat 2022; 192:411-421. [PMID: 35000093 PMCID: PMC9997691 DOI: 10.1007/s10549-021-06506-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Accepted: 12/29/2021] [Indexed: 11/02/2022]
Abstract
PURPOSE To examine the association between race and clinical outcomes (pathological complete response [pCR]; recurrence-free survival [RFS], and overall survival [OS]) in patients diagnosed with triple-negative (TNBC) or HER2-positive breast cancer treated with neoadjuvant chemotherapy (NAC). METHODS Patients who self-identified as non-Hispanic white (NHW) or non-Hispanic Black (NHB) and were diagnosed with Stage I-III TNBC (n = 171 including 124 NHW and 47 NHB) and HER2-positive (n = 161 including 136 NHW and 25 NHB) breast cancer who received NAC from 2000 to 2018 at Roswell Park Comprehensive Cancer Center were included. Associations of race with pCR and survival outcomes were evaluated using logistic and Cox regression models, respectively. RESULTS There was no statistically significant difference in pCR between NHB and NHW patients with TNBC (31.9 vs 29.8%; OR: 1.11, 95% CI 0.54-2.29) or HER2-positive breast cancer (36.0 vs 39.7%; OR: 0.87, 95% CI 0.36-3.11). After controlling for potential confounders, including age, stage, treatment regimens, insurance status, and comorbidities, no statistically significant difference in OS or RFS was observed between NHB and NHW patients within either subtype. CONCLUSION TNBC or HER2-positive breast cancer patients treated at a single academic center in Buffalo, NY, showed similar outcomes independent of patients' race. Given the known genetic diversity of African American ancestry in the US, further studies investigating the interplay between race, geography, and clinical outcomes are warranted.
Collapse
Affiliation(s)
- Maithreyi Sarma
- Roswell Park Comprehensive Cancer Center, Elm and Carlton Street, Buffalo, NY, 14203, USA.
| | - Stuthi Perimbeti
- Roswell Park Comprehensive Cancer Center, Elm and Carlton Street, Buffalo, NY, 14203, USA
| | | | - Kristopher Attwood
- Roswell Park Comprehensive Cancer Center, Elm and Carlton Street, Buffalo, NY, 14203, USA
| | | | - Tracey O'Connor
- Roswell Park Comprehensive Cancer Center, Elm and Carlton Street, Buffalo, NY, 14203, USA
| | - Amy Early
- Roswell Park Comprehensive Cancer Center, Elm and Carlton Street, Buffalo, NY, 14203, USA
| | - Ellis G Levine
- Roswell Park Comprehensive Cancer Center, Elm and Carlton Street, Buffalo, NY, 14203, USA
| | - Kazuaki Takabe
- Roswell Park Comprehensive Cancer Center, Elm and Carlton Street, Buffalo, NY, 14203, USA
| | - Pawel Kalinski
- Roswell Park Comprehensive Cancer Center, Elm and Carlton Street, Buffalo, NY, 14203, USA
| | - Christine Ambrosone
- Roswell Park Comprehensive Cancer Center, Elm and Carlton Street, Buffalo, NY, 14203, USA
| | - Thaer Khoury
- Roswell Park Comprehensive Cancer Center, Elm and Carlton Street, Buffalo, NY, 14203, USA
| | - Song Yao
- Roswell Park Comprehensive Cancer Center, Elm and Carlton Street, Buffalo, NY, 14203, USA
| | - Shipra Gandhi
- Roswell Park Comprehensive Cancer Center, Elm and Carlton Street, Buffalo, NY, 14203, USA
| |
Collapse
|
5
|
Skinner KE, Haiderali A, Huang M, Schwartzberg LS. Real-world effectiveness outcomes in patients diagnosed with metastatic triple-negative breast cancer. Future Oncol 2020; 17:931-941. [PMID: 33207944 DOI: 10.2217/fon-2020-1021] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Aim: This study examined treatment patterns and effectiveness outcomes of patients with metastatic triple-negative breast cancer (mTNBC) from US community oncology centers. Materials & methods: Eligible patients were females, aged ≥18 years, diagnosed with mTNBC between 1 January 2010 and 31 January 2016. Kaplan-Meier and Cox regression methods were used. Results: Sample comprised 608 patients with average age of 57.5 years and 505/608 patients (83.1%) received systemic treatment. Overall survival (OS) from first-line treatment found that African-American patients had shorter OS than White (9.3 vs 13.7 months; hazard ratio: 1.35; p = 0.006). Conclusion: More than 15% of women with mTNBC were not treated, indicating a high unmet need. Overall prognosis remains poor, which highlights the opportunity for newer therapies to improve progression-free survival and OS.
Collapse
Affiliation(s)
- Karen E Skinner
- Vector Oncology, an affiliate of ConcertAI, 6555 Quince, Suite 400, Memphis, TN 38119, USA
| | - Amin Haiderali
- Merck & Co., Inc., 351 N. Sumneytown Pike, North Wales, PA 19454, USA
| | - Min Huang
- Merck & Co., Inc., 351 N. Sumneytown Pike, North Wales, PA 19454, USA
| | - Lee S Schwartzberg
- West Cancer Center, 7945 Wolf River Boulevard, Germantown, TN 38138, USA
| |
Collapse
|
6
|
Paxton RJ, Garner W, Dean LT, Logan G, Allen-Watts K. Health Behaviors and Lifestyle Interventions in African American Breast Cancer Survivors: A Review. Front Oncol 2019; 9:3. [PMID: 30723698 PMCID: PMC6349825 DOI: 10.3389/fonc.2019.00003] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Accepted: 01/02/2019] [Indexed: 11/13/2022] Open
Abstract
Background: African American breast cancer survivors have a higher incidence of estrogen receptor negative and basal-like (e.g., triple negative) tumors, placing them at greater risk for poorer survival when compared to women of other racial and ethnic groups. While access to equitable care, late disease stage at diagnosis, tumor biology, and sociodemographic characteristics contribute to health disparities, poor lifestyle characteristics (i.e., inactivity, obesity, and poor diet) contribute equally to these disparities. Lifestyle interventions hold promise in shielding African American survivors from second cancers, comorbidities, and premature mortality, but they are often underrepresented in studies promoting positive behaviors. This review examined the available literature to document health behaviors and lifestyle intervention (i.e., obesity, physical activity, and sedentary behavior) studies in African American breast cancer survivors. Methods: We used PubMed, Academic Search Premier, and Scopus to identify cross-sectional and intervention studies examining the lifestyle behaviors of African American breast cancer survivors. Identified intervention studies were assessed for risk of bias. Other articles were identified and described to provide context for the review. Results: Our systematic review identified 226 relevant articles. The cross-sectional articles indicated poor adherence to physical activity and dietary intake and high rates of overweight and obesity. The 16 identified intervention studies indicated reasonable to modest study adherence rates (>70%), significant reductions in weight (range -1.9 to -3.6%), sedentary behavior (-18%), and dietary fat intake (range -13 to -33%) and improvements in fruit and vegetable intake (range +25 to +55%) and physical activity (range +13 to +544%). The risk of bias for most studies were rated as high (44%) or moderate (44%). Conclusions: The available literature suggests that African American breast cancer survivors adhere to interventions of various modalities and are capable of making modest to significant changes. Future studies should consider examining (a) mediators and moderators of lifestyle behaviors and interventions, (b) biological outcomes, and (c) determinants of enhanced survival in this population.
Collapse
Affiliation(s)
- Raheem J Paxton
- Department of Community Medicine and Population Health, The University of Alabama, Tuscaloosa, AL, United States
| | - William Garner
- Department of Life and Health Sciences, University of North Texas at Dallas, Dallas, TX, United States
| | - Lorraine T Dean
- Department of Epidemiology, John Hopkins School of Public Health, Baltimore, MD, United States
| | - Georgiana Logan
- Department of Community Medicine and Population Health, The University of Alabama, Tuscaloosa, AL, United States
| | - Kristen Allen-Watts
- Department of Community Medicine and Population Health, The University of Alabama, Tuscaloosa, AL, United States
| |
Collapse
|
7
|
Nassour I, Mokdad AA, Minter RM, Polanco PM, Augustine MM, Mansour JC, Porembka MR, Wang SC. Racial and ethnic disparities in a national cohort of ampullary cancer patients. J Surg Oncol 2017; 117:220-227. [PMID: 28968918 DOI: 10.1002/jso.24835] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Accepted: 08/21/2017] [Indexed: 02/06/2023]
Abstract
BACKGROUND AND OBJECTIVES Racial and ethnic variations have been described in the different malignancies, but no such data exists for ampullary cancer. The aim of this study was to present an updated report on the epidemiology, treatment patterns, and survival of a national cohort of ampullary cancer patients. METHODS Patients diagnosed with ampullary cancer between 2004 and 2014 were identified in the National Cancer Database. Overall survival was estimated and compared between racial/ethnic groups using the log-rank test. RESULTS A total of 14 879 patients were identified; 78% of the patients were White, 9% Hispanic, 8% Black, and 5% Asian. We noted significant differences in disease presentation, socioeconomic status, and outcomes. Blacks had the lowest median overall survival at 18.9 months followed by Whites at 23.9 months, Hispanics at 32.7 months, and Asians at 37.4 months. On a multivariate Cox proportional-hazards model, being Black was associated with worse survival compared to being White while being Asian and Hispanic were associated with better survival. CONCLUSIONS Overall survival of ampullary cancer patients was independently associated with race and ethnicity. Further studies are needed to clarify whether these disparities are primarily due to socioeconomic status or biologic factors.
Collapse
Affiliation(s)
- Ibrahim Nassour
- Department of Surgery, The University of Texas Southwestern Medical Center, Dallas, Texas
| | - Ali A Mokdad
- Department of Surgery, The University of Texas Southwestern Medical Center, Dallas, Texas
| | - Rebecca M Minter
- Department of Surgery, The University of Texas Southwestern Medical Center, Dallas, Texas
| | - Patricio M Polanco
- Department of Surgery, The University of Texas Southwestern Medical Center, Dallas, Texas
| | - Mathew M Augustine
- Department of Surgery, The University of Texas Southwestern Medical Center, Dallas, Texas
| | - John C Mansour
- Department of Surgery, The University of Texas Southwestern Medical Center, Dallas, Texas
| | - Matthew R Porembka
- Department of Surgery, The University of Texas Southwestern Medical Center, Dallas, Texas
| | - Sam C Wang
- Department of Surgery, The University of Texas Southwestern Medical Center, Dallas, Texas
| |
Collapse
|
8
|
Martinez L, Thames E, Kim J, Chaudhuri G, Singh R, Pervin S. Increased sensitivity of African American triple negative breast cancer cells to nitric oxide-induced mitochondria-mediated apoptosis. BMC Cancer 2016; 16:559. [PMID: 27473585 PMCID: PMC4966744 DOI: 10.1186/s12885-016-2547-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Accepted: 07/11/2016] [Indexed: 02/07/2023] Open
Abstract
Background Breast cancer is a complex heterogeneous disease where many distinct subtypes are found. Younger African American (AA) women often present themselves with aggressive form of breast cancer with unique biology which is very difficult to treat. Better understanding the biology of AA breast tumors could lead to development of effective treatment strategies. Our previous studies indicate that AA but not Caucasian (CA) triple negative (TN) breast cancer cells were sensitive to nitrosative stress-induced cell death. In this study, we elucidate possible mechanisms that contribute to nitric oxide (NO)-induced apoptosis in AA TN breast cancer cells. Methods Breast cancer cells were treated with various concentrations of long-acting NO donor, DETA-NONOate and cell viability was determined by trypan blue exclusion assay. Apoptosis was determined by TUNEL and caspase 3 activity as well as changes in mitochondrial membrane potential. Caspase 3 and Bax cleavage, levels of Cu/Zn superoxide dismutase (SOD) and Mn SOD was assessed by immunoblot analysis. Inhibition of Bax cleavage by Calpain inhibitor, and levels of reactive oxygen species (ROS) as well as SOD activity was measured in NO-induced apoptosis. In vitro and in vivo effect of NO treatment on mammary cancer stem cells (MCSCs) was assessed. Results and discussion NO induced mitocondria-mediated apoptosis in all AA but not in CA TN breast cancer cells. We found significant TUNEL-positive cells, cleavage of Bax and caspase-3 activation as well as depolarization mitochondrial membrane potential only in AA TN breast cancer cells exposed to NO. Inhibition of Bax cleavage and quenching of ROS partially inhibited NO-induced apoptosis in AA TN cells. Increase in ROS coincided with reduction in SOD activity in AA TN breast cancer cells. Furthermore, NO treatment of AA TN breast cancer cells dramatically reduced aldehyde dehydrogenase1 (ALDH1) expressing MCSCs and xenograft formation but not in breast cancer cells from CA origin. Conclusions Ethnic differences in breast tumors dictate a need for tailoring treatment options more suited to the unique biology of the disease.
Collapse
Affiliation(s)
- Luis Martinez
- California State University, Dominguez Hills, Los Angeles, CA, USA
| | - Easter Thames
- Columbia University New York, New York, NY, 10027, USA
| | - Jinna Kim
- Charles R. Drew University of Medicine and Science, Los Angeles, CA, 90059, USA
| | - Gautam Chaudhuri
- Department of Obstetrics and Gynecology, David Geffen School of Medicine at UCLA, Los Angeles, CA, 90095, USA.,Jonsson Comprehensive Cancer Center at UCLA, Los Angeles, CA, 90095, USA
| | - Rajan Singh
- Charles R. Drew University of Medicine and Science, Los Angeles, CA, 90059, USA.,Department of Obstetrics and Gynecology, David Geffen School of Medicine at UCLA, Los Angeles, CA, 90095, USA.,Jonsson Comprehensive Cancer Center at UCLA, Los Angeles, CA, 90095, USA
| | - Shehla Pervin
- Charles R. Drew University of Medicine and Science, Los Angeles, CA, 90059, USA. .,Department of Obstetrics and Gynecology, David Geffen School of Medicine at UCLA, Los Angeles, CA, 90095, USA. .,Jonsson Comprehensive Cancer Center at UCLA, Los Angeles, CA, 90095, USA. .,Division of Endocrinology and Metabolism, Charles R. Drew University of Medicine and Science, 1731 East 120th Street, Los Angeles, CA, 90059, USA.
| |
Collapse
|
9
|
Impact of race, ethnicity, and BMI on achievement of pathologic complete response following neoadjuvant chemotherapy for breast cancer: a pooled analysis of four prospective Alliance clinical trials (A151426). Breast Cancer Res Treat 2016; 159:109-18. [PMID: 27449492 DOI: 10.1007/s10549-016-3918-5] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Accepted: 07/16/2016] [Indexed: 10/21/2022]
Abstract
Previous studies demonstrated poor response to neoadjuvant systemic therapy (NST) for breast cancer among black women and women who are overweight or obese, but this may be due to chemotherapy underdosing. We assessed associations of race, ethnicity, and body mass index (BMI) with pathologic complete response (pCR) in clinical trial populations. 1797 women enrolled in four NST trials (CALGB 40601, 40603; ACOSOG Z1041, Z1071) were included. Tumor subtypes were defined by estrogen receptor (ER) and HER2 status. Logistic regression generated odds ratios (OR) and 95 % confidence intervals (CI) for the associations of race, ethnicity, and BMI with in-breast pCR adjusting for subtype, study arm, lymph node status, tumor size, and tumor grade. 253 (14.1 %) were black, 199 (11.1 %) Hispanic, 520 (28.9 %) overweight, and 743 (41.4 %) obese. Compared to whites, Blacks and Hispanics were more likely to be obese and Blacks were more likely to have triple-negative cancer. pCR rates differed significantly by tumor subtype. In multivariate analyses, neither race (black vs white: OR 1.18, 95 % CI 0.85-1.62) nor ethnicity (Hispanic vs non-Hispanic; OR 1.30, 95 % CI 0.67-2.53) were significant predictors of pCR overall or by subtype. Overweight and obese women had lower pCR rates in ER+/HER2+, but higher pCR rates in ER-/HER2+ cancers. There was no difference in pCR according to race or ethnicity. Overall, there was no major difference in pCR rates by BMI. These findings suggest that pCR with optimally dosed NST is a function of tumor, rather than patient, biology.
Collapse
|
10
|
Wallace TA, Martin DN, Ambs S. Interactions among genes, tumor biology and the environment in cancer health disparities: examining the evidence on a national and global scale. Carcinogenesis 2011; 32:1107-21. [PMID: 21464040 DOI: 10.1093/carcin/bgr066] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Cancer incidence and mortality rates show great variations across nations and between population groups. These variations are largely explained by differences in age distribution, diet and lifestyle, access to health care, cultural barriers and exposure to carcinogens and pathogens. Cancers caused by infections are significantly more common in developing than developed countries, and they overproportionally affect immigrant populations in the USA and other countries. The global pattern of cancer is not stagnant. Instead, it is dynamic because of fluctuations in the age distribution of populations, improvements in cancer prevention and early detection in affluent countries and rapid changes in diet and lifestyle in parts of the world. For example, increased smoking rates have caused tobacco-induced cancers to rise in various Asian countries, whereas reduced smoking rates have caused these cancers to plateau or even begin to decline in Western Europe and North America. Some population groups experience a disproportionally high cancer burden. In the USA and the Caribbean, cancer incidence and mortality rates are excessively high in populations of African ancestry when compared with other population groups. The causes of this disparity are multifaceted and may include tumor biological and genetic factors and their interaction with the environment. In this review, we will discuss the magnitude and causes of global cancer health disparities and will, with a focus on African-Americans and selected cancer sites, evaluate the evidence that genetic and tumor biological factors contribute to existing cancer incidence and outcome differences among population groups in the USA.
Collapse
Affiliation(s)
- Tiffany A Wallace
- Laboratory of Human Carcinogenesis, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892-4258, USA
| | | | | |
Collapse
|
11
|
Chavez-Macgregor M, Litton J, Chen H, Giordano SH, Hudis CA, Wolff AC, Valero V, Hortobagyi GN, Bondy ML, Gonzalez-Angulo AM. Pathologic complete response in breast cancer patients receiving anthracycline- and taxane-based neoadjuvant chemotherapy: evaluating the effect of race/ethnicity. Cancer 2010; 116:4168-77. [PMID: 20564153 DOI: 10.1002/cncr.25296] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND The current study was conducted to evaluate the influence of race/ethnicity and tumor subtype in pathologic complete response (pCR) following treatment with neoadjuvant chemotherapy. METHODS A total of 2074 patients diagnosed with breast cancer between 1994 and 2008 who were treated with neoadjuvant anthracycline- and taxane-based chemotherapy were included. pCR was defined as no residual invasive cancer in the breast and axilla. The Kaplan-Meier product-limit was used to calculate survival outcomes. Cox proportional hazards models were fitted to determine the relationship of patient and tumor variables with outcome. RESULTS The median patient age was 50 years; 14.6% of patients were black, were 15.2% Hispanic, 64.3% were white, and 5.9% were of other race. There were no differences in pCR rates among race/ethnicity (12.3% in black, 14.2% in Hispanics, 12.3% in whites, and 11.5% in others, P = .788). Lack of pCR, breast cancer subtype, grade 3 tumors, and lymphovascular invasion were associated with worse recurrence-free survival (RFS) and overall survival (OS) (P </= .0001). Differences in RFS by race/ethnicity were noted in the patients with hormone receptor-positive disease (P = .007). On multivariate analysis, Hispanics had improved RFS (hazard ratio [HR], 0.69; 95% confidence interval [95% CI], 0.49-0.97) and OS (HR, 0.63; 95% CI, 0.41-0.97); blacks had a trend toward worse outcomes (RFS: HR, 1.28 [95% CI, 0.97-1.68] and OS: HR, 1.32 [95% CI, 0.97-1.81]) when compared with whites. CONCLUSIONS In this cohort of patients, race/ethnicity was not found to be significantly associated with pCR rates. On a multivariate analysis, improved outcomes were observed in Hispanics and a trend toward worse outcomes in black patients, when compared with white patients. Further research was needed to explore the potential differences in biology and outcomes.
Collapse
Affiliation(s)
- Mariana Chavez-Macgregor
- Division of Cancer Medicine, The University of Texas M. D. Anderson Cancer Center, Houston, TX 77030-4009, USA
| | | | | | | | | | | | | | | | | | | |
Collapse
|
12
|
Wujcik D, Wolff SN. Recruitment of African Americans to National Oncology Clinical Trials through a clinical trial shared resource. J Health Care Poor Underserved 2010; 21:38-50. [PMID: 20173284 DOI: 10.1353/hpu.0.0251] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
In 2000, using National Institutes of Health/National Cancer Institute (NIH/NCI) U54 funds, a clinical trials shared resource was established at Nashville General Hospital at Meharry to attract more African Americans to national cancer clinical trials. This Report from the Field describes the model used to achieve this end.
Collapse
Affiliation(s)
- Debra Wujcik
- Meharry Medical College, Nashville, TN 37208, USA
| | | |
Collapse
|
13
|
Does race affect outcomes in triple negative breast cancer? Breast Cancer (Auckl) 2010; 4:23-33. [PMID: 20697530 PMCID: PMC2914275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND There is discordance among studies assessing the impact of race on outcome of patients with Triple Negative Breast Cancer (TNBC). We assessed survival outcomes for African American (AA) versus Caucasian (CA) women with TNBC treated at an urban cancer center in Memphis, TN with a predominant AA patient population. METHODS Patients with Stage I-III TNBC were identified from our breast database. Event free survival (EFS) and Breast cancer specific survival (BCSS) were the primary outcome measures. Cox proportional hazards models were fitted for EFS and BCSS. RESULTS Of the 124 patients, 71% were AA. No significant association between race and stage (P = 0.21) or menopausal status (P = 0.15) was observed. Median age at diagnosis was significantly lower for AA versus CA women (49.5 vs. 55 years, P = 0.024). 92% of the patients received standard neo/adjuvant chemotherapy, with no significant difference in duration and type of chemotherapy between the races. With a median follow up of 23 months, 28% of AA vs. 19% of CA women had an event (P = 0.37). 3 year EFS and BCSS trended favorably towards CA race (77% vs. 64%, log rank P = 0.20 and 92% vs. 76%, P = 0.13 respectively) with a similar trend noted on multiple variable modeling (EFS: HR 0.62, P = 0.29; BCSS: HR 0.36, P = 0.18). AA women >/=50 years at diagnosis had a significantly worse BCSS than the CA women in that age group (P = 0.012). CONCLUSION Older AA women with TNBC have a significantly worse breast cancer specific survival than their CA counterparts. Overall, there is a trend towards lower survival for AA women compared to Caucasians despite uniformity of tumor phenotype and treatment. The high early event rate, irrespective of race, underscores the need for effective therapies for women with TNBC.
Collapse
|
14
|
Patel TA, Colon-Otero G, Bueno Hume C, Copland JA, Perez EA. Breast cancer in Latinas: gene expression, differential response to treatments, and differential toxicities in Latinas compared with other population groups. Oncologist 2010; 15:466-75. [PMID: 20427382 DOI: 10.1634/theoncologist.2010-0004] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Disparities in clinical outcomes of breast cancer have been described among different racial and ethnic groups in the U.S. Convincing data exist showing that Latina women have a lower incidence of breast cancer but a higher breast cancer-related mortality rate compared with white women. Noticeable differences in breast cancer incidence are present even within different Latina subsets with a higher incidence in second- and third-generation women compared with foreign born. An increasing amount of data exists pointing to significant differences in the genetics and biology of breast cancer in Latinas as a significant contributor to the higher mortality, including a higher incidence of triple-negative breast cancers (which do not overexpress HER-2 protein and are negative for estrogen receptors and progesterone receptors). Other social and environmental factors are likely to play a significant role as well, including a lower rate of screening mammography, variable access to medical care, among others. Recent data are inconclusive regarding differences among racial/ethnic groups in the response to chemotherapy. Data on racial/ethnic variations in the pharmacogenomics of chemotherapy, endocrine treatments, and toxicity are more limited, with some data suggesting differences in frequencies of polymorphisms of genes involved in the metabolism of some of these agents. Further studies are needed on this subject.
Collapse
Affiliation(s)
- Tejal A Patel
- Division of Hematology/Oncology, Mayo Clinic Cancer Center, Breast Clinic, Jacksonville, Florida 32224, USA.
| | | | | | | | | |
Collapse
|
15
|
Moore DH, Tian C, Monk BJ, Long HJ, Omura GA, Bloss JD. Prognostic factors for response to cisplatin-based chemotherapy in advanced cervical carcinoma: a Gynecologic Oncology Group Study. Gynecol Oncol 2009; 116:44-9. [PMID: 19853287 DOI: 10.1016/j.ygyno.2009.09.006] [Citation(s) in RCA: 119] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2009] [Revised: 08/31/2009] [Accepted: 09/04/2009] [Indexed: 11/18/2022]
Abstract
PURPOSE Cisplatin-based combination chemotherapy is considered standard treatment for advanced/recurrent cervical carcinoma; however, the majority of patients do not respond. This study was undertaken to identify the prognostic factors and develop a model predictive of (non-) response to chemotherapy. METHODS Four-hundred twenty-eight patients with advanced cervical cancer who received a cisplatin-containing combination in three Gynecologic Oncology Group (GOG) protocols (110, 169 and 179) were evaluated for baseline clinical characteristics and multivariate analysis was conducted to identify factors independently prognostic predictive of response using a Logistic regression model. A predictive model was developed and externally validated using an independent GOG protocol (149) data. RESULTS Multivariate analysis identified five factors (African-American, performance status [PS] >0, pelvic disease, prior radiosensitizer and time interval from diagnosis to first recurrence <1 year) independently prognostic of poor response. A simple prognostic index was derived based on the total number of risk factors. When patients were classified into three risk groups (low risk: 0-1 factor; mid risk: 2-3 factors; high risk: 4-5 factors), patients with 4-5 risk factors were estimated to have a response rate of only 13%, and median progression-free and overall survival of 2.8 months and 5.5 months, respectively. The accuracy of the index was supported by both internal and external datasets. CONCLUSIONS A simple index based on five prognostic factors may have utility in clinical practice to identify the women who are not likely to respond to the cisplatin-containing regimens. This subgroup of patients should be considered for non-cisplatin chemotherapy or investigational trials.
Collapse
Affiliation(s)
- David H Moore
- Gynecologic Oncology of Indiana, 5255 East Stop 11 Road, Suite 310, Indianapolis, IN 46237, USA.
| | | | | | | | | | | |
Collapse
|
16
|
Affiliation(s)
- Shaheenah Dawood
- Department of Medical Oncology, Dubai Hospital, United Arab Emirates
| | - Ana Maria Gonazalez-Angulo
- Department of Breast Medical Oncology, The University of Texas M. D. Anderson Cancer Center, Houston, TX
| |
Collapse
|