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Zavala VA, Casavilca-Zambrano S, Navarro-Vásquez J, Tamayo LI, Castañeda CA, Valencia G, Morante Z, Calderón M, Abugattas JE, Gómez HL, Fuentes HA, Liendo-Picoaga R, Cotrina JM, Neciosup SP, Roque K, Vásquez J, Mas L, Gálvez-Nino M, Fejerman L, Vidaurre T. Breast cancer subtype and clinical characteristics in women from Peru. Front Oncol 2023; 13:938042. [PMID: 36925912 PMCID: PMC10013058 DOI: 10.3389/fonc.2023.938042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 01/30/2023] [Indexed: 02/18/2023] Open
Abstract
Introduction Breast cancer is a heterogeneous disease, and the distribution of the different subtypes varies by race/ethnic category in the United States and by country. Established breast cancer-associated factors impact subtype-specific risk; however, these included limited or no representation of Latin American diversity. To address this gap in knowledge, we report a description of demographic, reproductive, and lifestyle breast cancer-associated factors by age at diagnosis and disease subtype for The Peruvian Genetics and Genomics of Breast Cancer (PEGEN-BC) study. Methods The PEGEN-BC study is a hospital-based breast cancer cohort that includes 1943 patients diagnosed at the Instituto Nacional de Enfermedades Neoplásicas in Lima, Peru. Demographic and reproductive information, as well as lifestyle exposures, were collected with a questionnaire. Clinical data, including tumor Hormone Receptor (HR) status and Human Epidermal Growth Factor Receptor 2 (HER2) status, were abstracted from electronic medical records. Differences in proportions and mean values were tested using Chi-squared and one-way ANOVA tests, respectively. Multinomial logistic regression models were used for multivariate association analyses. Results The distribution of subtypes was 52% HR+HER2-, 19% HR+HER2+, 16% HR-HER2-, and 13% HR-HER2+. Indigenous American (IA) genetic ancestry was higher, and height was lower among individuals with the HR-HER2+ subtype (80% IA vs. 76% overall, p=0.007; 152 cm vs. 153 cm overall, p=0.032, respectively). In multivariate models, IA ancestry was associated with HR-HER2+ subtype (OR=1.38,95%CI=1.06-1.79, p=0.017) and parous women showed increased risk for HR-HER2+ (OR=2.7,95%CI=1.5-4.8, p<0.001) and HR-HER2- tumors (OR=2.4,95%CI=1.5-4.0, p<0.001) compared to nulliparous women. Multiple patient and tumor characteristics differed by age at diagnosis (<50 vs. >=50), including ancestry, region of residence, family history, height, BMI, breastfeeding, parity, and stage at diagnosis (p<0.02 for all variables). Discussion The characteristics of the PEGEN-BC study participants do not suggest heterogeneity by tumor subtype except for IA genetic ancestry proportion, which has been previously reported. Differences by age at diagnosis were apparent and concordant with what is known about pre- and post-menopausal-specific disease risk factors. Additional studies in Peru should be developed to further understand the main contributors to the specific age of onset and molecular disease subtypes in this population and develop population-appropriate predictive models for prevention.
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Affiliation(s)
- Valentina A. Zavala
- Department of Public Health Sciences, University of California, Davis, Davis, CA, United States
| | | | | | - Lizeth I. Tamayo
- Department of Public Health Sciences, The University of Chicago, Chicago, IL, United States
| | - Carlos A. Castañeda
- Instituto Nacional de Enfermedades Neoplásicas, Departamento de Oncología Médica, Lima, Peru
| | - Guillermo Valencia
- Instituto Nacional de Enfermedades Neoplásicas, Departamento de Oncología Médica, Lima, Peru
| | - Zaida Morante
- Instituto Nacional de Enfermedades Neoplásicas, Departamento de Oncología Médica, Lima, Peru
| | - Mónica Calderón
- Instituto Nacional de Enfermedades Neoplásicas, Departamento de Oncología Médica, Lima, Peru
| | - Julio E. Abugattas
- Instituto Nacional de Enfermedades Neoplásicas, Departamento de Cirugía de Mamas y tumores Blandos, Lima, Peru
| | - Henry L. Gómez
- Instituto Nacional de Enfermedades Neoplásicas, Departamento de Oncología Médica, Lima, Peru
| | - Hugo A. Fuentes
- Instituto Nacional de Enfermedades Neoplásicas, Departamento de Oncología Médica, Lima, Peru
| | | | - Jose M. Cotrina
- Instituto Nacional de Enfermedades Neoplásicas, Departamento de Cirugía de Mamas y tumores Blandos, Lima, Peru
| | - Silvia P. Neciosup
- Instituto Nacional de Enfermedades Neoplásicas, Departamento de Oncología Médica, Lima, Peru
| | - Katia Roque
- Instituto Nacional de Enfermedades Neoplásicas, Departamento de Oncología Médica, Lima, Peru
| | - Jule Vásquez
- Instituto Nacional de Enfermedades Neoplásicas, Departamento de Oncología Médica, Lima, Peru
| | - Luis Mas
- Instituto Nacional de Enfermedades Neoplásicas, Departamento de Oncología Médica, Lima, Peru
| | - Marco Gálvez-Nino
- Instituto Nacional de Enfermedades Neoplásicas, Departamento de Oncología Médica, Lima, Peru
| | - Laura Fejerman
- Department of Public Health Sciences, University of California, Davis, Davis, CA, United States
- University of California Davis Comprehensive Cancer Center, University of California, Davis, Davis, CA, United States
| | - Tatiana Vidaurre
- Instituto Nacional de Enfermedades Neoplásicas, Departamento de Oncología Médica, Lima, Peru
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de la Rosa R, Vazquez S, Tachachartvanich P, Daniels SI, Sillé F, Smith MT. Cell-Based Bioassay to Screen Environmental Chemicals and Human Serum for Total Glucocorticogenic Activity. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2021; 40:177-186. [PMID: 33085113 PMCID: PMC7793542 DOI: 10.1002/etc.4903] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 06/24/2020] [Accepted: 10/12/2020] [Indexed: 05/27/2023]
Abstract
Glucocorticoids are steroid hormones that have systemic effects that are mediated by the glucocorticoid receptor. Environmental chemicals that disrupt glucocorticoid receptor signaling and/or glucocorticoid homeostasis could adversely affect the health of human and nonhuman vertebrates. A major challenge in identifying environmental chemicals that alter glucocorticoid receptor signaling and/or glucocorticoid homeostasis is a lack of adequate screening methods. We developed a cell-based bioassay to measure total glucocorticogenic activity (TGA) of environmental chemicals and human serum. Human MDA-MB-231 breast cancer cells were stably transfected with a luciferase reporter gene driven by 3 tandem glucocorticoid-response elements. Dose-response curves for 6 glucocorticoids and 4 non-glucocorticoid steroid hormones were generated to evaluate the specificity of the bioassay. Cells were also optimized to measure TGA of 176 structurally diverse environmental chemicals and human serum samples in a high-throughput format. Reporter activity was glucocorticoid-specific and induced 400-fold by 1 μM dexamethasone. Furthermore, 3 of the screened chemicals (3,4,4'-trichlorocarbanilide, isopropyl-N-phenylcarbamate, and benzothiazole derivative 2-[4-chlorophenyl]-benzothiazole) potentiated cortisol-induced glucocorticoid receptor activity. Serum TGA estimates from the bioassay were highly correlated with a cortisol enzyme-linked immunosorbent assay. The present study establishes an in vitro method to rapidly screen environmental chemicals and human serum for altered glucocorticogenic activity. Future studies can utilize this tool to quantify the joint effect of endogenous glucocorticoids and environmental chemicals. Environ Toxicol Chem 2021;40:177-186. © 2020 SETAC.
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Affiliation(s)
- Rosemarie de la Rosa
- Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, CA
| | - Sergio Vazquez
- Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, CA
| | - Phum Tachachartvanich
- Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, CA
| | - Sarah I. Daniels
- Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, CA
| | - Fenna Sillé
- Department of Environmental Health and Engineering, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD
| | - Martyn T. Smith
- Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, CA
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Gea M, Toso A, Schilirò T. Estrogenic activity of biological samples as a biomarker. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 740:140050. [PMID: 32927569 DOI: 10.1016/j.scitotenv.2020.140050] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 06/04/2020] [Accepted: 06/05/2020] [Indexed: 06/11/2023]
Abstract
Biological assays can evaluate the cumulative effect of a mixture, considering synergistic/antagonistic interactions and effects of unknown/unconsidered compounds. Therefore, their application could increase in the next years also to analyse biological samples. The aim of this review is to discuss the methodological approach and the application of estrogenic activity assays in human biological samples. 75 research articles were analysed and divided according to whether they used these assays: i) to quantify the level of estrogens and/or as a biomarker of estrogenic status ii) as a biomarker of exposure to endocrine disrupting chemicals (EDCs). For the first purpose, some authors extracted biological samples while others tested them directly without any treatment. The study of these methodologies outlined that the methodology applied influenced the specificity of analysis. The estrogenic activity biomarker was used to analyse physiological variations of estrogens, pediatric diseases, hormone-dependent diseases and estrogen suppression/enhancement after pharmaceutical treatments. For the second purpose, some authors extracted samples while others tested them directly, some authors divided endogenous estrogens from xenoestrogens while others tested samples without separation. The analysis of these methodologies outlined some limitations related to the efficiency of extraction and the incorrect separation of some compounds. The studies which applied this EDC biomarker showed that it was correlated with some EDCs, it varied according to the exposure of the population and it allowed the identification of some relationships between EDC exposure and breast cancer, type 1 diabetes and adverse health effects on children. In conclusion, the estrogenic activity of biological samples can be a useful tool: to quantify low levels of 17β-estradiol, to assess the combined effect of endogenous estrogens and xenoestrogens, to estimate the estrogenic status providing considerable insight into physiological or pathological conditions, to evaluate EDC presence implementing the existing knowledge about EDC exposure and adverse health effects.
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Affiliation(s)
- Marta Gea
- Department of Public Health and Pediatrics, University of Torino, Piazza Polonia 94, 10126 Torino, Italy.
| | - Anna Toso
- Department of Public Health and Pediatrics, University of Torino, Piazza Polonia 94, 10126 Torino, Italy
| | - Tiziana Schilirò
- Department of Public Health and Pediatrics, University of Torino, Piazza Polonia 94, 10126 Torino, Italy
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Tachachartvanich P, Sanchez SS, Gomez SL, John EM, Smith MT, Fejerman L. Plasma glucocorticogenic activity, race/ethnicity and alcohol intake among San Francisco Bay Area women. PLoS One 2020; 15:e0233904. [PMID: 32479509 PMCID: PMC7263601 DOI: 10.1371/journal.pone.0233904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 05/14/2020] [Indexed: 11/18/2022] Open
Abstract
Racial and ethnic minorities are at higher risk for a variety of diseases. While sociodemographic and lifestyle factors contribute to racial/ethnic health disparities, the biological processes underlying these associations remain poorly understood. Stress and its biological consequences through the glucocorticoid receptor (GR) have been hypothesized to mediate adverse disease outcomes. In fasting morning samples of 503 control women from the San Francisco Bay Area Breast Cancer Study, we used a sensitive Chemical-Activated LUciferase gene eXpression (CALUX) assay to examine the association of sociodemographic and lifestyle factors with plasma glucocorticogenic (G) activity in three racial/ethnic groups. The G activity is a sensitive measure that reflects biological activity of total plasma glucocorticoids including cortisol and glucocorticoid-like compounds. Associations between G activity and sociodemographic and lifestyle factors were examined using multivariable linear regression models. Latina and non-Latina Black (NLB) women had 9% (P = 0.053) and 14% (P = 0.008) lower morning G activity than non-Latina White (NLW) women, respectively. Additionally, we replicated a previously reported association between G activity and alcohol intake (women who drank >10gms had 19% higher G activity than non-drinkers, P = 0.004) in Latina and NLB women. Further research should assess the association between G activity and health outcomes in a prospective cohort so as to characterize the relationship between total plasma G activity in pre-disease state and disease outcomes across different racial/ethnic populations.
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Affiliation(s)
- Phum Tachachartvanich
- Division of Environmental Health Sciences, School of Public Health, University of California Berkeley, Berkeley, CA, United States of America
| | - Sylvia S. Sanchez
- Division of Environmental Health Sciences, School of Public Health, University of California Berkeley, Berkeley, CA, United States of America
| | - Scarlett L. Gomez
- Cancer Prevention Institute of California, Fremont, CA, United States of America
- Department of Epidemiology and Biostatistics, Helen Diller Family Comprehensive Cancer Center, University of California San Francisco, San Francisco, CA, United States of America
| | - Esther M. John
- Cancer Prevention Institute of California, Fremont, CA, United States of America
- Division of Oncology and Stanford Cancer Institute, Department of Medicine, Stanford University School of Medicine, Stanford, CA, United States of America
| | - Martyn T. Smith
- Division of Environmental Health Sciences, School of Public Health, University of California Berkeley, Berkeley, CA, United States of America
| | - Laura Fejerman
- Division of General Internal Medicine and Institute of Human Genetics, Department of Medicine, Helen Diller Family Comprehensive Cancer Center, University of California San Francisco, San Francisco, CA, United States of America
- * E-mail:
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Sanchez SS, Tachachartvanich P, Stanczyk FZ, Gomez SL, John EM, Smith MT, Fejerman L. Estrogenic activity, race/ethnicity, and Indigenous American ancestry among San Francisco Bay Area women. PLoS One 2019; 14:e0213809. [PMID: 30908519 PMCID: PMC6433244 DOI: 10.1371/journal.pone.0213809] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Accepted: 02/28/2019] [Indexed: 01/14/2023] Open
Abstract
Estrogens play a significant role in breast cancer development and are not only produced endogenously, but are also mimicked by estrogen-like compounds from environmental exposures. We evaluated associations between estrogenic (E) activity, demographic factors and breast cancer risk factors in Non-Latina Black (NLB), Non-Latina White (NLW), and Latina women. We examined the association between E activity and Indigenous American (IA) ancestry in Latina women. Total E activity was measured with a bioassay in plasma samples of 503 women who served as controls in the San Francisco Bay Area Breast Cancer Study. In the univariate model that included all women with race/ethnicity as the independent predictor, Latinas had 13% lower E activity (p = 0.239) and NLBs had 35% higher activity (p = 0.04) compared to NLWs. In the multivariable model that adjusted for demographic factors, Latinas continued to show lower E activity levels (26%, p = 0.026), but the difference between NLBs and NLWs was no longer statistically significant (p = 0.431). An inverse association was observed between E activity and IA ancestry among Latina women (50% lower in 0% vs. 100% European ancestry, p = 0.027) consistent with our previously reported association between IA ancestry and breast cancer risk. These findings suggest that endogenous estrogens and exogenous estrogen-like compounds that act on the estrogen receptor and modulate E activity may partially explain racial/ethnic differences in breast cancer risk.
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Affiliation(s)
- Sylvia S. Sanchez
- Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, Berkeley, California, United States of America
| | - Phum Tachachartvanich
- Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, Berkeley, California, United States of America
| | - Frank Z. Stanczyk
- Department of Obstetrics and Gynecology, Keck School of Medicine, University of Southern California, Los Angeles, California, United States of America
| | - Scarlett L. Gomez
- Department of Medicine, Division of Oncology and Stanford Cancer Institute, Stanford School of Medicine, Stanford, California, United States of America
- Department of Epidemiology and Biostatistics, Helen Diller Comprehensive Cancer Center, University of California, San Francisco, San Francisco, California, United States of America
| | - Esther M. John
- Department of Medicine, Division of Oncology and Stanford Cancer Institute, Stanford School of Medicine, Stanford, California, United States of America
| | - Martyn T. Smith
- Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, Berkeley, California, United States of America
| | - Laura Fejerman
- Division of General Internal Medicine, Institute of Human Genetics, Helen Diller Comprehensive Cancer Center and Department of Medicine, University of California, San Francisco, San Francisco, California, United States of America
- * E-mail:
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Tachachartvanich P, Sangsuwan R, Ruiz HS, Sanchez SS, Durkin KA, Zhang L, Smith MT. Assessment of the Endocrine-Disrupting Effects of Trichloroethylene and Its Metabolites Using in Vitro and in Silico Approaches. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:1542-1550. [PMID: 29294279 PMCID: PMC6290898 DOI: 10.1021/acs.est.7b04832] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Trichloroethylene (TCE) is a ubiquitous environmental contaminant, which may have effects on both ecosystem and human health. TCE has been reported to cause several toxic effects, but little effort has been made to assess the ecological risks of TCE or its major metabolites: trichloroethanol (TCOH), trichloroacetic acid, and oxalic acid (OA). In this study, the endocrine-disrupting potential of TCE and its metabolites were investigated using in vitro and in silico approaches. We examined alterations in the steroidogenesis pathway using the NCI-H295R cell line and utilized receptor-mediated luciferase reporter cell lines to identify effects on estrogen and androgen receptors. Molecular docking was also used to explore chemical interactions with these receptors. All test chemicals except OA significantly increased 17β-estradiol production which can be attributed to an up-regulation of 17β-hydroxysteroid dehydrogenase. Moreover, TCOH exhibited significant antiestrogenic activity with a RIC20 (20% relative inhibitory concentration) of 3.7 × 10-7 M. Molecular docking simulation supported this finding with lower docking scores for TCOH, indicating that hydrogen bonds may stabilize the interaction between TCOH and the estrogen receptor binding pocket. These findings suggest that TCE contamination poses an endocrine-disrupting threat, which has implications for both ecological and human health.
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Affiliation(s)
- Phum Tachachartvanich
- Division of Environmental Health Sciences, School of Public Health, University of California Berkeley, Berkeley, California 94720, United States
| | - Rapeepat Sangsuwan
- Department of Chemistry, University of California Berkeley, Berkeley, California 94720, United States
| | - Heather S. Ruiz
- Division of Environmental Health Sciences, School of Public Health, University of California Berkeley, Berkeley, California 94720, United States
| | - Sylvia S. Sanchez
- Division of Environmental Health Sciences, School of Public Health, University of California Berkeley, Berkeley, California 94720, United States
| | - Kathleen A. Durkin
- Department of Chemistry, University of California Berkeley, Berkeley, California 94720, United States
| | - Luoping Zhang
- Division of Environmental Health Sciences, School of Public Health, University of California Berkeley, Berkeley, California 94720, United States
| | - Martyn T. Smith
- Division of Environmental Health Sciences, School of Public Health, University of California Berkeley, Berkeley, California 94720, United States
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