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Bui TT, Aasa J, Abass K, Ågerstrand M, Beronius A, Castro M, Escrivá L, Galizia A, Gliga A, Karlsson O, Whaley P, Yost E, Rudén C. Applying a modified systematic review and integrated assessment framework (SYRINA) - a case study on triphenyl phosphate. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2024; 26:380-399. [PMID: 38205707 PMCID: PMC10879963 DOI: 10.1039/d3em00353a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Accepted: 12/18/2023] [Indexed: 01/12/2024]
Abstract
This work presents a case study in applying a systematic review framework (SYRINA) to the identification of chemicals as endocrine disruptors. The suitability and performance of the framework is tested with regard to the widely accepted World Health Organization definition of an endocrine disruptor (ED). The endocrine disrupting potential of triphenyl phosphate (TPP), a well-studied flame retardant reported to exhibit various endocrine related effects was assessed. We followed the 7 steps of the SYRINA framework, articulating the research objective via Populations, Exposures, Comparators, Outcomes (PECO) statements, performed literature search and screening, conducted study evaluation, performed data extraction and summarized and integrated the evidence. Overall, 66 studies, consisting of in vivo, in vitro and epidemiological data, were included. We concluded that triphenyl phosphate could be identified as an ED based on metabolic disruption and reproductive function. We found that the tools used in this case study and the optimizations performed on the framework were suitable to assess properties of EDs. A number of challenges and areas for methodological development in systematic appraisal of evidence relating to endocrine disrupting potential were identified; significant time and effort were needed for the analysis of in vitro mechanistic data in this case study, thus increasing the workload and time needed to perform the systematic review process. Further research and development of this framework with regards to grey literature (non-peer-reviewed literature) search, harmonization of study evaluation methods, more consistent evidence integration approaches and a pre-defined method to assess links between adverse effect and endocrine activity are recommended. It would also be advantageous to conduct more case studies for a chemical with less data than TPP.
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Affiliation(s)
- Thuy T Bui
- Department of Environmental Science, Stockholm University, Sweden.
| | | | - Khaled Abass
- Department of Environmental Health Sciences, College of Health Sciences, University of Sharjah, United Arab Emirates
- Sharjah Institute for Medical Research (SIMR), University of Sharjah, United Arab Emirates
- Research Unit of Biomedicine and Internal Medicine, Faculty of Medicine, University of Oulu, Finland
| | | | | | - Mafalda Castro
- Section for Environmental Chemistry and Physics, University of Copenhagen, Denmark
| | - Laura Escrivá
- Laboratory of Food Chemistry and Toxicology, Faculty of Pharmacy, University of Valencia, Spain
| | - Audrey Galizia
- United States Environmental Protection Agency, Center for Public Health and Environmental Assessment, USA
| | - Anda Gliga
- Institute of Environmental Medicine, Karolinska Institutet, Sweden
| | - Oskar Karlsson
- Science for Life Laboratory, Department of Environmental Science, Stockholm University, Sweden
| | - Paul Whaley
- Lancaster Environment Centre, Lancaster University, UK
| | - Erin Yost
- United States Environmental Protection Agency, Center for Public Health and Environmental Assessment, USA
| | - Christina Rudén
- Department of Environmental Science, Stockholm University, Sweden.
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2
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Anwar MJ, Altaf A, Imran M, Amir M, Alsagaby SA, Abdulmonem WA, Mujtaba A, El-Ghorab AH, Ghoneim MM, Hussain M, Jbawi EA, Shaker ME, Abdelgawad MA. Anti-cancer perspectives of resveratrol: a comprehensive review. FOOD AGR IMMUNOL 2023; 34. [DOI: https:/doi.org/10.1080/09540105.2023.2265686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 09/27/2023] [Indexed: 05/18/2024] Open
Affiliation(s)
- Muhammad Junaid Anwar
- Faculty of Food Science and Nutrition, Bahauddin Zakariya University, Multan, Pakistan
| | - Areeba Altaf
- Faculty of Food Science and Nutrition, Bahauddin Zakariya University, Multan, Pakistan
| | - Muhammad Imran
- Department of Food Science and Technology, University of Narowal, Narowal, Pakistan
| | - Muhammad Amir
- Faculty of Food Science and Nutrition, Bahauddin Zakariya University, Multan, Pakistan
| | - Suliman A. Alsagaby
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences, Majmaah University, Majmaah, Saudi Arabia
| | - Waleed Al Abdulmonem
- Department of Pathology, College of Medicine, Qassim University, Buraidah, Kingdom of Saudi Arabia
| | - Ahmed Mujtaba
- Department of Food Science and Technology, Faculty of Engineering and Technology, Hamdard University Islamabad. Islamabad Campus, Islamabad, Pakistan
| | - Ahmed H. El-Ghorab
- Department of Chemistry, College of Science, Jouf University, Sakaka, Saudi Arabia
| | - Mohammed M. Ghoneim
- Department of Pharmacy Practice, College of Pharmacy, AlMaarefa University, Ad Diriyah, Saudi Arabia
- Pharmacognosy and Medicinal Plants Department, Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt
| | - Muzzamal Hussain
- Department of Food Sciences, Government College University Faisalabad, Pakistan
| | | | - Mohamed E. Shaker
- Department of Pharmacology, College of Pharmacy, Jouf University, Sakaka, Saudi Arabia
- Department of Pharmacology & Toxicology, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - Mohamed A. Abdelgawad
- Department of Pharmaceutical Chemistry, College of Pharmacy, Jouf University, Sakaka, Saudi Arabia
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Beni-Suef University, Beni suef, Egypt
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3
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Li BA, Li BM, Bao Z, Li Q, Xing M, Li B. Dichlorodiphenyltrichloroethane for Malaria and Agricultural Uses and Its Impacts on Human Health. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2023; 111:45. [PMID: 37730942 DOI: 10.1007/s00128-023-03789-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Accepted: 08/12/2023] [Indexed: 09/22/2023]
Abstract
Pesticides are widely used in agriculture and disease control, and dichlorodiphenyltrichloroethane (DDT) is one of the most used pesticides in human history. Besides its significant contributions in pest control in agriculture, DDT was credited as having saved millions of human lives for controlling malaria and other deadly insect-transmitted diseases. Even today, the use of DDT in some countries for malaria control cannot be replaced without endangering people who live there. The recent COVID-19 pandemic has changed our lives and reminded us of the challenges in dealing with infectious diseases, especially deadly ones including malaria. However, DDT and its metabolites are stable, persist long, are found in almost every corner of the world, and their persistent effects on humans, animals, and the environment must be seriously considered. This review will focus on the history of DDT use for agriculture and malaria control, the pathways for the spread of DDT, benefits and risks of DDT use, DDT exposure to animals, humans, and the environment, and the associated human health risks. These knowledge and findings of DDT will benefit the selection and management of pesticides worldwide.
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Affiliation(s)
- Benjamin A Li
- Department of Orthopaedics, School of Medicine, West Virginia University, Morgantown, 26506-9196, WV, USA
- Morgantown High School, Morgantown, WV, USA
| | | | - Zhenghong Bao
- Department of Orthopaedics, School of Medicine, West Virginia University, Morgantown, 26506-9196, WV, USA
| | - Qingyang Li
- Department of Orthopaedics, School of Medicine, West Virginia University, Morgantown, 26506-9196, WV, USA
| | - Malcolm Xing
- Department of Mechanical Engineering, University of Manitoba, and The Children's Hospital Research Institute of Manitoba, MB, Winnipeg, Canada
| | - Bingyun Li
- Department of Orthopaedics, School of Medicine, West Virginia University, Morgantown, 26506-9196, WV, USA.
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4
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Cong X, Liu Q, Li W, Wang L, Feng Y, Liu C, Guo LQ, Wang L, Shi C, Li P. Systematic review and meta-analysis of breast cancer risks in relation to 2,3,7,8-tetrachlorodibenzo-p-dioxin and per- and polyfluoroalkyl substances. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:86540-86555. [PMID: 37420152 DOI: 10.1007/s11356-023-28592-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 06/30/2023] [Indexed: 07/09/2023]
Abstract
2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD) and per- and polyfluoroalkyl substances (PFAS) are endocrine disrupting chemicals that may cause breast cancer. However, there lacks consistent research on the association between TCDD, PFAS exposure, and breast cancer. To this end, a meta-analysis was carried out in this review to explore the relationship between these two endocrine disruptors and breast cancer. Relevant literature was searched from 5 databases: Medline, Scopus, Embase, PubMed, and Web of Science. Odds ratios (OR) with 95% confidence intervals (CIs) were pooled by fixed-effects and random-effects meta-analysis models. A total of 17 publications were finally included for quantitative evaluation. Meta-analysis showed that TCDD (OR = 1.00, 95% CI = 0.89-1.12, I2 = 39.3%, P = 0.144), PFOA (OR = 1.07, 95% CI = 0.84-1.38, I2 = 85.9%, P < 0.001), PFOS (OR = 1.01, 95% CI = 0.95-1.08, I2 = 65.7%, P < 0.001), PFNA (OR = 0.89, 95% CI = 0.67-1.19, I2 = 74.4%, P < 0.001), and PFHxS (OR = 0.90, 95% CI = 0.72-1.13, I2 = 74%, P < 0.001) were not significantly correlated with breast cancer. Internal exposure, however, showed a significant positive correlation between TCDD and BC (OR = 2.85, 95% CI = 1.23-6.59, I2 = 0.0%, P = 0.882). No statistically significant association between TCDD, PFAS exposure, and breast cancer was observed in this meta-analysis.
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Affiliation(s)
- Xiangru Cong
- School of Environmental Science and Safety Engineering, Tianjin University of Technology, Tianjin, 300384, China
- Tianjin Key Laboratory of Hazardous Waste Safety Disposal and Recycling Technology, Tianjin, 300384, China
| | - Qisijing Liu
- Research Institute of Public Health, School of Medicine, Nankai University, 300350, Tianjin, People's Republic of China
| | - Weixia Li
- School of Environmental Science and Safety Engineering, Tianjin University of Technology, Tianjin, 300384, China
- Tianjin Key Laboratory of Hazardous Waste Safety Disposal and Recycling Technology, Tianjin, 300384, China
| | - Lei Wang
- Hebei Research Center for Geoanalysis, Baoding, 071000, Hebei, China
| | - Yuanyuan Feng
- School of Environmental Science and Safety Engineering, Tianjin University of Technology, Tianjin, 300384, China
- Tianjin Key Laboratory of Hazardous Waste Safety Disposal and Recycling Technology, Tianjin, 300384, China
| | - Chunyu Liu
- School of Environmental Science and Safety Engineering, Tianjin University of Technology, Tianjin, 300384, China
- Tianjin Key Laboratory of Hazardous Waste Safety Disposal and Recycling Technology, Tianjin, 300384, China
| | - Li-Qiong Guo
- Wenzhou Safety (Emergency) Institute, Tianjin University, Wenzhou, 325000, China
- Institute of Disaster and Emergency Medicine, Tianjin University, Tianjin, 300072, China
| | - Liping Wang
- Hebei Research Center for Geoanalysis, Baoding, 071000, Hebei, China
| | - Chang Shi
- Hebei Research Center for Geoanalysis, Baoding, 071000, Hebei, China
| | - Penghui Li
- School of Environmental Science and Safety Engineering, Tianjin University of Technology, Tianjin, 300384, China.
- Tianjin Key Laboratory of Hazardous Waste Safety Disposal and Recycling Technology, Tianjin, 300384, China.
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5
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Morin SM, Gregory KJ, Medeiros B, Terefe T, Hoshyar R, Alhusseiny A, Chen S, Schwartz RC, Jerry DJ, Vandenberg LN, Schneider SS. Benzophenone-3 exposure alters composition of tumor infiltrating immune cells and increases lung seeding of 4T1 breast cancer cells. ADVANCES IN CANCER BIOLOGY - METASTASIS 2023; 7:100080. [PMID: 37593105 PMCID: PMC10434833 DOI: 10.1016/j.adcanc.2022.100080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 08/19/2023]
Abstract
Environmental chemicals are a persistent and pervasive part of everyday life. A subset of environmental chemicals are xenoestrogens, compounds that bind to the estrogen receptor (ER) and drive estrogen-related processes. One such chemical, benzophenone-3 (BP3), is a common chemical in sunscreen. It is a potent UV protectant but also is quickly absorbed through the skin. While it has been approved by the FDA, there is a renewed interest in the safety of BP3, particularly in relation to breast cancer. The focus of this study was to examine the impact that BP3 has on triple negative breast cancer (TNBC) through alterations to cells in the immune microenvironment. In this study, we exposed female mice to one of two doses of BP3 before injecting them with a TNBC cell line. Several immune endpoints were examined both in the primary tissues and from in vitro studies of T cell behavior. Our studies revealed that in the lung tumor microenvironment, exposure to BP3 not only increased the number of metastases, but also the total area of tumor coverage. We also found that BP3 caused alterations in immune populations in a tissue-dependent manner, particularly in T cells. Taken together, our data suggest that while BP3 may not directly affect the proliferation of TNBC, growth and metastasis of TNBC-derived tumors can be altered by BP3 exposures via the alterations in the immune populations of the tumor microenvironment.
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Affiliation(s)
- Stephanie M. Morin
- Pioneer Valley Life Sciences Institute, Springfield, MA, 01199, USA
- Dept of Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA, 01003, USA
| | - Kelly J. Gregory
- Pioneer Valley Life Sciences Institute, Springfield, MA, 01199, USA
| | - Brenda Medeiros
- Department of Environmental Health Sciences, School of Public Health and Health Sciences, University of Massachusetts, Amherst, 01003, USA
| | - Tigist Terefe
- Pioneer Valley Life Sciences Institute, Springfield, MA, 01199, USA
| | - Reyhane Hoshyar
- Breast Cancer and the Environment Research Program, Department of Microbiology and Molecular Genetics, Michigan State University, East Lansing, MI, USA
| | - Ahmed Alhusseiny
- University of Massachusetts Chan Medical School-Baystate, Department of Pathology, Springfield, MA, 01199, USA
| | - Shiuan Chen
- Department of Cancer Biology and Molecular Medicine, Beckman Research Institute of City of Hope, Duarte, CA, USA
| | - Richard C. Schwartz
- Breast Cancer and the Environment Research Program, Department of Microbiology and Molecular Genetics, Michigan State University, East Lansing, MI, USA
| | - D. Joseph Jerry
- Dept of Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA, 01003, USA
| | - Laura N. Vandenberg
- Department of Environmental Health Sciences, School of Public Health and Health Sciences, University of Massachusetts, Amherst, 01003, USA
| | - Sallie S. Schneider
- Pioneer Valley Life Sciences Institute, Springfield, MA, 01199, USA
- Dept of Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA, 01003, USA
- University of Massachusetts Chan Medical School-Baystate, Department of Surgery, Springfield, MA, 01199, USA
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6
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Depypere H. Treatment of women with BRCA mutation. Climacteric 2023; 26:235-239. [PMID: 37011662 DOI: 10.1080/13697137.2023.2189583] [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: 01/10/2023] [Revised: 02/17/2023] [Accepted: 02/28/2023] [Indexed: 04/05/2023]
Abstract
The cumulative risk for breast and ovarian cancer is high in BRCA1 or BRCA2 mutation carriers. The lifetime risk of breast cancer by the age of 80 years is respectively up to 72% and 69% in BRCA1 and BRCA2 mutation carriers. The risk of ovarian cancer is higher (44%) in BRCA1 than in BRCA2 (17%) mutation carriers. Breast and ovarian cancers tend to arise earlier in BRCA1 mutation carriers. Breast cancers in BRCA1 mutation carriers are more frequently (up to 70%) triple negative while the majority (up to 80%) of breast cancers in BRCA2 mutation carriers are hormone sensitive. Many issues remain to be resolved. In daily practice we are often confronted with patients having BRCA mutations classified as variants of unknown significance, who do have breast cancer personally or have a strong family history of breast cancer. On the other hand, 30-40% of mutation carriers will not develop breast cancer. Moreover, it is very difficult to predict the age at which cancer will arise. In a multidisciplinary setting we need to offer BRCA and other mutation carriers a wide range of information, advice and support.
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Affiliation(s)
- H Depypere
- Menopause and Breast Clinic, University Hospital and Coupure Menopause Center, Gent, Belgium
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7
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da Cruz RS, Dominguez O, Chen E, Gonsiewski AK, Nasir A, Cruz MI, Zou X, Galli S, Makambi K, McCoy M, Schmidt MO, Jin L, Peran I, de Assis S. Environmentally Induced Sperm RNAs Transmit Cancer Susceptibility to Offspring in a Mouse Model. RESEARCH SQUARE 2023:rs.3.rs-2507391. [PMID: 36798383 PMCID: PMC9934767 DOI: 10.21203/rs.3.rs-2507391/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
DNA sequence accounts for the majority of disease heritability, including cancer. Yet, not all familial cancer cases can be explained by genetic factors. It is becoming clear that environmentally induced epigenetic inheritance occurs and that the progeny's traits can be shaped by parental environmental experiences. In humans, epidemiological studies have implicated environmental toxicants, such as the pesticide DDT, in intergenerational cancer development, including breast and childhood tumors. Here, we show that the female progeny of males exposed to DDT in the pre-conception period have higher susceptibility to developing aggressive tumors in mouse models of breast cancer. Sperm of DDT-exposed males exhibited distinct patterns of small non-coding RNAs, with an increase in miRNAs and a specific surge in miRNA-10b levels. Remarkably, embryonic injection of the entire sperm RNA load of DDT-exposed males, or synthetic miRNA-10b, recapitulated the tumor phenotypes observed in DDT offspring. Mechanistically, miR-10b injection altered the transcriptional profile in early embryos with enrichment of genes associated with cell differentiation, tissue and immune system development. In adult DDT-derived progeny, transcriptional and protein analysis of mammary tumors revealed alterations in stromal and in immune system compartments. Our findings reveal a causal role for sperm RNAs in environmentally induced inheritance of cancer predisposition and, if confirmed in humans, this could help partially explain some of the "missing heritability" of breast, and other, malignancies.
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Affiliation(s)
- Raquel Santana da Cruz
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, USA
| | - Odalys Dominguez
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, USA
| | - Elaine Chen
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, USA
| | - Alexandra K Gonsiewski
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, USA
| | - Apsra Nasir
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, USA
| | - M Idalia Cruz
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, USA
| | - Xiaojun Zou
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, USA
| | - Susana Galli
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, USA
| | - Kepher Makambi
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, USA
- Department of Biostatistics, Bioinformatics, & Biomathematics, Georgetown University, Washington, DC, USA
| | - Matthew McCoy
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, USA
| | - Marcel O Schmidt
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, USA
| | - Lu Jin
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, USA
| | - Ivana Peran
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, USA
| | - Sonia de Assis
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, USA
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8
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Holladay SD. Environmental contaminants, endocrine disruption, and transgender: Can "born that way" in some cases be toxicologically real? Hum Exp Toxicol 2023; 42:9603271231203382. [PMID: 37751728 DOI: 10.1177/09603271231203382] [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] [Indexed: 09/28/2023]
Abstract
Gender is viewed by many as strictly binary based on a collection of body traits typical of a female or male phenotype, presence of a genotype that includes at least one copy of a Y chromosome, or ability to produce either egg or sperm cells. A growing non-binary view is that these descriptors, while compelling, may nonetheless fail to accurately capture an individual's true gender. The position of the American Psychological Association (APA) agrees with this view and is that transgender people are a defendable and real part of the human population. The considerable diversity of transgender expression then argues against any unitary or simple explanations, however, prenatal hormone levels, genetic influences, and early and later life experiences have been suggested as playing roles in development of transgender identities. The present review considers existing and emerging toxicologic data that may also support an environmental chemical contribution to some transgender identities, and suggest the possibility of a growing nonbinary brain gender continuum in the human population.
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Affiliation(s)
- Steven David Holladay
- Department of Biomedical Sciences, College of Veterinary Medicine, University of Georgia, Athens, GA, USA
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9
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Calaf GM. Breast carcinogenesis induced by organophosphorous pesticides. ADVANCES IN PHARMACOLOGY (SAN DIEGO, CALIF.) 2023; 96:71-117. [PMID: 36858780 DOI: 10.1016/bs.apha.2022.10.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Breast cancer is a major health threat to women worldwide and the leading cause of cancer-related death. The use of organophosphorous pesticides has increased in agricultural environments and urban settings, and there is evidence that estrogen may increase breast cancer risk in women. The mammary gland is an excellent model for examining its susceptibility to different carcinogenic agents due to its high cell proliferation capabilities associated with the topography of the mammary parenchyma and specific stages of gland development. Several experimental cellular models are presented here, in which the animals were exposed to chemical compounds such as pesticides, and endogenous substances such as estrogens that exert a significant effect on normal breast cell processes at different levels. Such models were developed by the effect of malathion, parathion, and eserine, influenced by estrogen demonstrating features of cancer initiation in vivo as tumor formation in rodents; and in vitro in the immortalized normal breast cell line MCF-10F, that when transformed showed signs of carcinogenesis such as increased cell proliferation, anchorage independence, invasive capabilities, modulation of receptors and genomic instability. The role of acetylcholine was also demonstrated in the MCF-10F, suggesting a role not only as a neurotransmitter but also with other functions, such as induction of cell proliferation, playing an important role in cancer. Of note, this is a unique experimental approach that identifies mechanistic signs that link organophosphorous pesticides with breast carcinogenesis.
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Affiliation(s)
- Gloria M Calaf
- Instituto de Alta Investigación, Universidad de Tarapacá, Arica, Chile.
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10
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Delineation of Pathogenomic Insights of Breast Cancer in Young Women. Cells 2022; 11:cells11121927. [PMID: 35741056 PMCID: PMC9221490 DOI: 10.3390/cells11121927] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 06/03/2022] [Accepted: 06/10/2022] [Indexed: 12/12/2022] Open
Abstract
The prognosis of breast cancer (BC) in young women (BCYW) aged ≤40 years tends to be poorer than that in older patients due to aggressive phenotypes, late diagnosis, distinct biologic, and poorly understood genomic features of BCYW. Considering the estimated predisposition of only approximately 15% of the BC population to BC-promoting genes, the underlying reasons for an increased occurrence of BCYW, at large, cannot be completely explained based on general risk factors for BC. This underscores the need for the development of next-generation of tissue- and body fluid-based prognostic and predictive biomarkers for BCYW. Here, we identified the genes associated with BCYW with a particular focus on the age, intrinsic BC subtypes, matched normal or normal breast tissues, and BC laterality. In young women with BC, we observed dysregulation of age-associated cancer-relevant gene sets in both cancer and normal breast tissues, sub-sets of which substantially affected the overall survival (OS) or relapse-free survival (RFS) of patients with BC and exhibited statically significant correlations with several gene modules associated with cellular processes such as the stroma, immune responses, mitotic progression, early response, and steroid responses. For example, high expression of COL1A2, COL5A2, COL5A1, NPY1R, and KIAA1644 mRNAs in the BC and normal breast tissues from young women correlated with a substantial reduction in the OS and RFS of BC patients with increased levels of these exemplified genes. Many of the genes upregulated in BCYW were overexpressed or underexpressed in normal breast tissues, which might provide clues regarding the potential involvement of such genes in the development of BC later in life. Many of BCYW-associated gene products were also found in the extracellular microvesicles/exosomes secreted from breast and other cancer cell-types as well as in body fluids such as urine, saliva, breast milk, and plasma, raising the possibility of using such approaches in the development of non-invasive, predictive and prognostic biomarkers. In conclusion, the findings of this study delineated the pathogenomics of BCYW, providing clues for future exploration of the potential predictive and prognostic importance of candidate BCYW molecules and research strategies as well as a rationale to undertake a prospective clinical study to examine some of testable hypotheses presented here. In addition, the results presented here provide a framework to bring out the importance of geographical disparities, to overcome the current bottlenecks in BCYW, and to make the next quantum leap for sporadic BCYW research and treatment.
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11
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Nicolella HD, de Assis S. Epigenetic Inheritance: Intergenerational Effects of Pesticides and Other Endocrine Disruptors on Cancer Development. Int J Mol Sci 2022; 23:4671. [PMID: 35563062 PMCID: PMC9102839 DOI: 10.3390/ijms23094671] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 04/08/2022] [Accepted: 04/20/2022] [Indexed: 12/14/2022] Open
Abstract
Parental environmental experiences affect disease susceptibility in the progeny through epigenetic inheritance. Pesticides are substances or mixtures of chemicals-some of which are persistent environmental pollutants-that are used to control pests. This review explores the evidence linking parental exposure to pesticides and endocrine disruptors to intergenerational and transgenerational susceptibility of cancer in population studies and animal models. We also discuss the impact of pesticides and other endocrine disruptors on the germline epigenome as well as the emerging evidence for how epigenetic information is transmitted between generations. Finally, we discuss the importance of this mode of inheritance in the context of cancer prevention and the challenges ahead.
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Affiliation(s)
- Heloiza Diniz Nicolella
- Georgetown University Medical Center, Washington, DC 20057, USA;
- Lombardi Comprehensive Cancer Center, Washington, DC 20057, USA
| | - Sonia de Assis
- Georgetown University Medical Center, Washington, DC 20057, USA;
- Lombardi Comprehensive Cancer Center, Washington, DC 20057, USA
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12
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Dávila-Santiago E, Shi C, Mahadwar G, Medeghini B, Insinga L, Hutchinson R, Good S, Jones GD. Machine Learning Applications for Chemical Fingerprinting and Environmental Source Tracking Using Non-target Chemical Data. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:4080-4090. [PMID: 35297611 DOI: 10.1021/acs.est.1c06655] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
A frequent goal of chemical forensic analyses is to select a panel of diagnostic chemical features─colloquially termed a chemical fingerprint─that can predict the presence of a source in a novel sample. However, most of the developed chemical fingerprinting workflows are qualitative in nature. Herein, we report on a quantitative machine learning workflow. Grab samples (n = 51) were collected from five chemical sources, including agricultural runoff, headwaters, livestock manure, (sub)urban runoff, and municipal wastewater. Support vector classification was used to select the top 10, 25, 50, and 100 chemical features that best discriminate each source from all others. The cross-validation balanced accuracy was 92-100% for all sources (n = 1,000 iterations). When screening for diagnostic features from each source in samples collected from four local creeks, presence probabilities were low for all sources, except for wastewater at two downstream locations in a single creek. Upon closer investigation, a wastewater treatment facility was located ∼3 km upstream of the nearest sample location. In addition, using simulated in silico mixtures, the workflow can distinguish presence and absence of some sources at 10,000-fold dilutions. These results strongly suggest that this workflow can select diagnostic subsets of chemical features that can be used to quantitatively predict the presence/absence of various sources at trace levels in the environment.
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Affiliation(s)
- Emmanuel Dávila-Santiago
- Department of Biological & Ecological Engineering, Oregon State University, Corvallis, Oregon 97331-3906, United States
| | - Cheng Shi
- Department of Biological & Ecological Engineering, Oregon State University, Corvallis, Oregon 97331-3906, United States
| | - Gouri Mahadwar
- Department of Biological & Ecological Engineering, Oregon State University, Corvallis, Oregon 97331-3906, United States
| | - Bridgette Medeghini
- Department of Biological & Ecological Engineering, Oregon State University, Corvallis, Oregon 97331-3906, United States
| | - Logan Insinga
- Department of Biological & Ecological Engineering, Oregon State University, Corvallis, Oregon 97331-3906, United States
| | - Rebecca Hutchinson
- School of Electrical Engineering and Computer Science, Oregon State University, Corvallis, Oregon 97331-5501, United States
- Department of Fisheries, Wildlife, and Conservation Sciences, Oregon State University, Corvallis, Oregon 97331-3803, United States
| | - Stephen Good
- Department of Biological & Ecological Engineering, Oregon State University, Corvallis, Oregon 97331-3906, United States
| | - Gerrad D Jones
- Department of Biological & Ecological Engineering, Oregon State University, Corvallis, Oregon 97331-3906, United States
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13
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Kateryna T, Monika L, Beata J, Joanna R, Edyta R, Marcin B, Agnieszka KW, Ewa J. Cadmium and breast cancer – current state and research gaps in the underlying mechanisms. Toxicol Lett 2022; 361:29-42. [DOI: 10.1016/j.toxlet.2022.03.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 02/04/2022] [Accepted: 03/17/2022] [Indexed: 01/02/2023]
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14
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Ding YC, Hurley S, Park JS, Steele L, Rakoff M, Zhu Y, Zhao J, LaBarge M, Bernstein L, Chen S, Reynolds P, Neuhausen SL. Methylation biomarkers of polybrominated diphenyl ethers (PBDEs) and association with breast cancer risk at the time of menopause. ENVIRONMENT INTERNATIONAL 2021; 156:106772. [PMID: 34425644 PMCID: PMC8385228 DOI: 10.1016/j.envint.2021.106772] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 07/09/2021] [Accepted: 07/12/2021] [Indexed: 05/27/2023]
Abstract
BACKGROUND Exposure to polybrominated diphenyl ethers (PBDEs) may influence risk of developing post-menopausal breast cancer. Although mechanisms are poorly understood, epigenetic regulation of gene expression may play a role. OBJECTIVES To identify DNA methylation (DNAm) changes associated with PBDE serum levels and test the association of these biomarkers with breast cancer risk. METHODS We studied 397 healthy women (controls) and 133 women diagnosed with breast cancer (cases) between ages 40 and 58 years who participated in the California Teachers Study. PBDE levels were measured in blood. Infinium Human Methylation EPIC Bead Chips were used to measure DNAm. Using multivariable linear regression models, differentially methylated CpG sites (DMSs) and regions (DMRs) associated with serum PBDE levels were identified using controls. For top-ranked DMSs and DMRs, targeted next-generation bisulfite sequencing was used to measure DNAm for 133 invasive breast cancer cases and 301 age-matched controls. Conditional logistic regression was used to evaluate associations between DMSs and DMRs and breast cancer risk. RESULTS We identified 15 DMSs and 10 DMRs statistically significantly associated with PBDE levels (FDR < 0.05). Methylation changes in a DMS at BMP8B and DMRs at TP53 and A2M-AS1 were statistically significantly (FDR < 0.05) associated with breast cancer risk. CONCLUSION We show for the first time that serum PBDE levels are associated with differential methylation and that PBDE-associated DNAm changes in blood are associated with breast cancer risk.
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Affiliation(s)
- Yuan Chun Ding
- Department of Population Sciences, Beckman Research Institute of City of Hope, Duarte, CA, USA
| | - Susan Hurley
- Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, CA, USA; Office of Environmental Health Hazard Assessment, California Environmental Protection Agency, Oakland, CA, USA
| | - June-Soo Park
- Environmental Chemistry Laboratory, Department of Toxic Substances Control, Berkeley, CA, USA
| | - Linda Steele
- Department of Population Sciences, Beckman Research Institute of City of Hope, Duarte, CA, USA
| | - Michele Rakoff
- Breast Cancer Care and Research Fund, Los Angeles, CA, USA
| | - Yun Zhu
- Department of Epidemiology, College of Public Health and Health Professions and College of Medicine, University of Florida, Gainesville, FL, USA
| | - Jinying Zhao
- Department of Epidemiology, College of Public Health and Health Professions and College of Medicine, University of Florida, Gainesville, FL, USA
| | - Mark LaBarge
- Department of Population Sciences, Beckman Research Institute of City of Hope, Duarte, CA, USA
| | - Leslie Bernstein
- Department of Population Sciences, Beckman Research Institute of City of Hope, Duarte, CA, USA
| | - Shiuan Chen
- Department of Cancer Biology, Beckman Research Institute of City of Hope, Duarte, CA, USA
| | - Peggy Reynolds
- Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, CA, USA
| | - Susan L Neuhausen
- Department of Population Sciences, Beckman Research Institute of City of Hope, Duarte, CA, USA.
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15
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Darbre PD. Endocrine disrupting chemicals and breast cancer cells. ADVANCES IN PHARMACOLOGY (SAN DIEGO, CALIF.) 2021; 92:485-520. [PMID: 34452695 DOI: 10.1016/bs.apha.2021.04.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Many hundreds of endocrine disrupting chemicals (EDCs) have been measured as entering human breast tissue from a range of environmental sources, and this review focuses on discussion of mechanisms by which such EDCs may be contributing to the globally rising incidence of breast cancer. Many of the distinguishing features of breast cancer may be accounted for by EDC exposure, including, but not limited to, the fact that many EDCs possess estrogenic activity and exposure to estrogen is a main risk factor for breast cancer. Studies of the actions of EDCs in human breast cancer cells are aided by use of the conceptual framework of the hallmarks of cancer, and, acting by a variety of genomic and nongenomic mechanisms, EDCs have now been shown to enable all the hallmarks of cancer to develop in human breast cancer cells. Many studies report that hallmarks can develop at concentrations which are within the range of those measured in human breast tissues, especially when added as mixtures. The varied levels of different EDCs measured in individual breast tissue samples together with the overlapping and complementary mechanisms of action of the EDCs imply that thematic mechanisms will be driven inevitably by different chemical mixtures. Despite the complexity, EDCs do need to now be acknowledged as a risk factor for breast cancer in order for preventative strategies to include reduction in EDC exposure.
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Affiliation(s)
- Philippa D Darbre
- School of Biological Sciences, University of Reading, Reading, United Kingdom.
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16
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Lin HW, Feng HX, Chen L, Yuan XJ, Tan Z. Maternal exposure to environmental endocrine disruptors during pregnancy is associated with pediatric germ cell tumors. NAGOYA JOURNAL OF MEDICAL SCIENCE 2021; 82:323-333. [PMID: 32581410 PMCID: PMC7276410 DOI: 10.18999/nagjms.82.2.315] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
This study aimed to evaluate the efficacy of interventions to reduce patient misidentification incidents classified as level 2 and over (adverse events occurred for patients) with the step-by-step problem-solving method. All incidents related to patient misidentification were selected, and relevant information was collected from the original electronic incident reports. We then conducted an eight-step problem-solving process with the aim of reducing patient misclassification and improving patient safety. Step 1: the number of misidentification-related incident reports and the percentage of these reports in the total incident reports increased each year. Step 2: the most frequent misidentification type was sample collection tubes, followed by drug administration and hospital meals. Step 3: we set a target of an 20% decrease in patient misidentification cases classified as level 2 or over compared with the previous year, and established this as a hospital priority. Step 4: we found that discrepancies in patient identification procedures were the most important causes of misidentification. Step 5: we standardized the patient identification process to achieve an 10% reduction in misidentification. Step 6: we disseminated instructional videos to all staff members. Step 7: we confirmed there was an 18% reduction in level 2 and over patient misidentification compared with the previous year. Step 8: we intend to make additional effort to decrease misidentification of patients by a further 10%. Level 2 and over patient misidentification can be reduced by a patient identification policy using a step-by-step problem-solving procedure. This study aimed to evaluate the efficacy of interventions to reduce patient misidentification incidents with step-by-step problem-solving method. Continued seamless efforts to eliminate patient misidentification are mandatory for this activity.
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Affiliation(s)
- Hou-Wei Lin
- Department of Pediatric Urology, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China.,Department of Pediatric Surgery, Jiaxing Maternity and Child Health Care Hospital, Zhejiang, China
| | - Hai-Xia Feng
- Department of Pediatric gastroenterology and nutrition, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Lin Chen
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Xiao-Jun Yuan
- Department of Pediatric Hematology/Oncology, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Zhen Tan
- Department of Pediatric Hematology/Oncology, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
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17
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Rashid H, Alqahtani SS, Alshahrani S. Diet: A Source of Endocrine Disruptors. Endocr Metab Immune Disord Drug Targets 2021; 20:633-645. [PMID: 31642798 DOI: 10.2174/1871530319666191022100141] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 09/18/2019] [Accepted: 10/01/2019] [Indexed: 12/11/2022]
Abstract
BACKGROUND Food is indispensable for human life and determines the health and wellbeing of the consumer. As food is the source of energy for humans, it also emerges as one of the most important sources of exposure to deleterious chemicals both natural and synthetic. The food exposed chemicals cause a number of detrimental health effects in humans, with endocrine disruption being of serious concern amongst these effects. Such chemicals disrupting the health of endocrine system are known as endocrine-disrupting chemicals (EDCs). The food exposed EDCs need to be identified and classified to effectuate a cautious consumption of food by all and especially by vulnerable groups. AIM The aim of the present review was to discuss food as a source of exposure to common endocrine disruptors in humans. This review presents the occurrence and levels of some of the critical endocrine disruptors exposed through frequently consumed diets. METHODS The major source of data was PubMed, besides other relevant publications. The focus was laid on data from the last five years, however significant earlier data was also considered. CONCLUSION The food as a source of endocrine disruptors to humans cannot be neglected. It is highly imperative for the consumer to recognize food as a source of EDCs and make informed choices in the consumption of food items.
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Affiliation(s)
- Hina Rashid
- Department of Pharmacology and Toxicology, College of Pharmacy, Jazan University, Jizan, Saudi Arabia
| | - Saad S Alqahtani
- Clinical Pharmacy Department, College of Pharmacy, Jazan University, Jizan, Saudi Arabia
| | - Saeed Alshahrani
- Department of Pharmacology and Toxicology, College of Pharmacy, Jazan University, Jizan, Saudi Arabia
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18
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Calaf GM. Role of organophosphorous pesticides and acetylcholine in breast carcinogenesis. Semin Cancer Biol 2021; 76:206-217. [PMID: 33766648 DOI: 10.1016/j.semcancer.2021.03.016] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 03/18/2021] [Indexed: 12/16/2022]
Abstract
Breast cancer is the leading cause of cancer-related death in women worldwide. Several studies have addressed the association between cancer in humans and agricultural pesticide exposure. Evidence indicates that exposure to organophosphorous pesticides such as parathion and malathion occurs as a result of occupational factors since they are extensively used to control insects. On the other hand, estrogens have been considered beneficial to the organism; however, epidemiological studies have pointed out an increased breast cancer risk in both humans and animals. Experimental female rat mammary gland cancer models were developed after exposure to parathion, malathion, eserine, an acetylcholinesterase inhibitor, and estrogen allowing the analysis of the signs of carcinogenicity as alteration of cell proliferation, receptor expression, genomic instability, and cell metabolism in vivo and in vitro. Thus, pesticides increased proliferative ducts followed by ductal carcinoma; and 17β-estradiol increased proliferative lobules followed by lobular carcinomas. The combination of both pesticides and either eserine or estrogen induced tumors with both types of structures followed by mammary gland tumors and metastasis to the lung and kidneys after 240 days of a 5-day treatment. Studies also showed that these pesticides and eserine decreased three to five times the acetylcholinesterase activity in the serum compared to controls whereas terminal end buds increased in number, being inhibited by atropine. Genomic instability was analyzed in such tissues (mp53, CYP1A2, c-myc, c-fos, ERα, M2R) and pesticides increased protein expression that was stimulated by estrogens but inhibited by atropine. Eserine also transformed the epithelium of the rat mammary gland in the presence of estrogen and increased the number of terminal end buds after treatment inducing mammary carcinomas. Then, enzymatic digestion of such structures gave rise to cells with increased DNA synthesis and induced anchorage independence. Thus, there were changes in the epithelium of the mammary gland influencing breast carcinogenesis. Furthermore, these substances and acetylcholine also showed the signs of carcinogenicity in vitro as cell proliferation, receptor expression (ERα, ErbB2, M2R), genomic instability (c-myc, mp53, ERα, M2R), and cell metabolism. A unique cellular model is also presented here based on the use of MCF-10 F, a non-tumorigenic cell line that represents a valuable clinically translatable experimental approach that identifies mechanistic links for pesticides and estrogen as suspect human carcinogenic agents.
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Affiliation(s)
- Gloria M Calaf
- Instituto de Alta Investigación, Universidad de Tarapacá, Arica, 1000000, Chile; Center for Radiological Research, Columbia University Medical Center, New York, NY, 10032, USA.
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19
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Pashayan N, Antoniou AC, Ivanus U, Esserman LJ, Easton DF, French D, Sroczynski G, Hall P, Cuzick J, Evans DG, Simard J, Garcia-Closas M, Schmutzler R, Wegwarth O, Pharoah P, Moorthie S, De Montgolfier S, Baron C, Herceg Z, Turnbull C, Balleyguier C, Rossi PG, Wesseling J, Ritchie D, Tischkowitz M, Broeders M, Reisel D, Metspalu A, Callender T, de Koning H, Devilee P, Delaloge S, Schmidt MK, Widschwendter M. Personalized early detection and prevention of breast cancer: ENVISION consensus statement. Nat Rev Clin Oncol 2020; 17:687-705. [PMID: 32555420 PMCID: PMC7567644 DOI: 10.1038/s41571-020-0388-9] [Citation(s) in RCA: 145] [Impact Index Per Article: 36.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/06/2020] [Indexed: 02/07/2023]
Abstract
The European Collaborative on Personalized Early Detection and Prevention of Breast Cancer (ENVISION) brings together several international research consortia working on different aspects of the personalized early detection and prevention of breast cancer. In a consensus conference held in 2019, the members of this network identified research areas requiring development to enable evidence-based personalized interventions that might improve the benefits and reduce the harms of existing breast cancer screening and prevention programmes. The priority areas identified were: 1) breast cancer subtype-specific risk assessment tools applicable to women of all ancestries; 2) intermediate surrogate markers of response to preventive measures; 3) novel non-surgical preventive measures to reduce the incidence of breast cancer of poor prognosis; and 4) hybrid effectiveness-implementation research combined with modelling studies to evaluate the long-term population outcomes of risk-based early detection strategies. The implementation of such programmes would require health-care systems to be open to learning and adapting, the engagement of a diverse range of stakeholders and tailoring to societal norms and values, while also addressing the ethical and legal issues. In this Consensus Statement, we discuss the current state of breast cancer risk prediction, risk-stratified prevention and early detection strategies, and their implementation. Throughout, we highlight priorities for advancing each of these areas.
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Affiliation(s)
- Nora Pashayan
- Department of Applied Health Research, Institute of Epidemiology and Healthcare, University College London, London, UK
| | - Antonis C Antoniou
- Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK
| | - Urska Ivanus
- Epidemiology and Cancer Registry, Institute of Oncology Ljubljana, Ljubljana, Slovenia
| | - Laura J Esserman
- Carol Franc Buck Breast Care Center, University of California, San Francisco, CA, USA
| | - Douglas F Easton
- Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK
| | - David French
- Division of Psychology & Mental Health, School of Health Sciences, University of Manchester, Manchester, UK
| | - Gaby Sroczynski
- Department of Public Health, Health Services Research and Health Technology Assessment, Institute of Public Health, Medical Decision Making and Health Technology Assessment, UMIT-University for Health Sciences, Medical Informatics and Technology, Hall in Tirol, Austria
- Division of Health Technology Assessment, Oncotyrol - Center for Personalized Cancer Medicine, Innsbruck, Austria
| | - Per Hall
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
- Department of Oncology, Södersjukhuset, Stockholm, Sweden
| | - Jack Cuzick
- Wolfson Institute of Preventive Medicine, Barts and The London, Centre for Cancer Prevention, Queen Mary University of London, London, UK
| | - D Gareth Evans
- Division of Evolution and Genomic Sciences, University of Manchester, Manchester, UK
| | - Jacques Simard
- Genomics Center, CHU de Québec - Université Laval Research Center, Québec, Canada
| | | | - Rita Schmutzler
- Center of Family Breast and Ovarian Cancer, University Hospital Cologne, Cologne, Germany
| | - Odette Wegwarth
- Max Planck Institute for Human Development, Center for Adaptive Rationality, Harding Center for Risk Literacy, Berlin, Germany
| | - Paul Pharoah
- Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK
- Department of Oncology, University of Cambridge, Cambridge, UK
| | | | | | | | - Zdenko Herceg
- Epigenetic Group, International Agency for Research on Cancer (IARC), WHO, Lyon, France
| | - Clare Turnbull
- Division of Genetics and Epidemiology, Institute of Cancer Research, London, UK
| | | | - Paolo Giorgi Rossi
- Epidemiology Unit, Azienda USL di Reggio Emilia - IRCCS, Reggio Emilia, Italy
| | - Jelle Wesseling
- Division of Molecular Pathology, Netherlands Cancer Institute, Antoni van Leeuwenhoek Hospital, Amsterdam, Netherlands
| | - David Ritchie
- Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
| | - Marc Tischkowitz
- Department of Medical Genetics, National Institute for Health Research Cambridge Biomedical Research Centre, University of Cambridge, Cambridge, UK
| | - Mireille Broeders
- Department for Health Evidence, Radboud University Medical Center, Nijmegen, Netherlands
| | - Dan Reisel
- Department of Women's Cancer, Institute for Women's Health, University College London, London, UK
| | - Andres Metspalu
- The Estonian Genome Center, Institute of Genomics, University of Tartu, Tartu, Estonia
| | - Thomas Callender
- Department of Applied Health Research, Institute of Epidemiology and Healthcare, University College London, London, UK
| | - Harry de Koning
- Department of Public Health, Erasmus MC, Rotterdam, Netherlands
| | - Peter Devilee
- Department of Human Genetics, Department of Pathology, Leiden University Medical Centre, Leiden, Netherlands
| | - Suzette Delaloge
- Breast Cancer Department, Gustave Roussy Institute, Paris, France
| | - Marjanka K Schmidt
- Division of Molecular Pathology, Netherlands Cancer Institute, Antoni van Leeuwenhoek Hospital, Amsterdam, Netherlands
| | - Martin Widschwendter
- Department of Women's Cancer, Institute for Women's Health, University College London, London, UK.
- Universität Innsbruck, Innsbruck, Austria.
- European Translational Oncology Prevention and Screening (EUTOPS) Institute, Hall in Tirol, Austria.
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20
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Calaf GM, Bleak TC, Muñoz JP, Aguayo F. Markers of epithelial-mesenchymal transition in an experimental breast cancer model induced by organophosphorous pesticides and estrogen. Oncol Lett 2020; 20:84. [PMID: 32863917 PMCID: PMC7436934 DOI: 10.3892/ol.2020.11945] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 07/01/2020] [Indexed: 12/24/2022] Open
Abstract
Breast cancer is a major health problem and accounted for 11.6% of all new cancer cases and 6.6% of all cancer deaths among women worldwide in 2018. However, its etiology has remained elusive. According to epidemiological studies, environmental factors are influencing the increase in the incidence of breast cancer risk. Components such as chemicals, including pesticides, are agents that produce deleterious effects on wildlife and humans. Among them, the organophosphorus pesticides, such as malathion, have largely been considered in this etiology. The epithelial-mesenchymal transition serves a key role in tumor progression and it is proposed that malathion is closely associated with the origin of this transition, among other causes. Moreover, proteins participating in this process are primordial in the transformation of a normal cell to a malignant tumor cell. The aim of the current study was to evaluate markers that indicated oncogenic properties. The results indicated greater expression levels of proteins associated with the epithelial-to-mesenchymal transition, including E-cadherin, Vimentin, Axl, and Slug in the rat mammary glands treated with malathion alone and combined with estrogen. Atropine was demonstrated to counteract the malathion effect as a muscarinic antagonist. The understanding of the use of markers in experimental models is crucial to identify different stages in the cancer process. The alteration of these markers may serve as a predicting factor that can be used to indicate whether a person has altered ducts or lobules in breast tissue within biopsies of individuals exposed to OPs or other environmental substances.
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Affiliation(s)
- Gloria M Calaf
- Instituto de Alta Investigación, Universidad de Tarapacá, Arica 1000000, Chile.,Center for Radiological Research, Columbia University Medical Center, New York, NY 10032, USA
| | - Tammy C Bleak
- Instituto de Alta Investigación, Universidad de Tarapacá, Arica 1000000, Chile
| | - Juan P Muñoz
- Instituto de Alta Investigación, Universidad de Tarapacá, Arica 1000000, Chile
| | - Francisco Aguayo
- Programa de Virología, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago 8380000, Chile.,Advanced Center for Chronic Diseases (ACCDiS), Universidad de Chile, Santiago 8380000, Chile
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21
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Calaf GM, Ponce-Cusi R, Aguayo F, Muñoz JP, Bleak TC. Endocrine disruptors from the environment affecting breast cancer. Oncol Lett 2020; 20:19-32. [PMID: 32565930 PMCID: PMC7286136 DOI: 10.3892/ol.2020.11566] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Accepted: 02/10/2020] [Indexed: 12/12/2022] Open
Abstract
Evaluation of carcinogenic substances from the environment is a challenge for scientists. Recently, a novel approach based on 10 key characteristics of human carcinogens classified by the International Agency for Research on Cancer (IARC) has emerged. Carcinogenesis depends on different mechanisms and factors, including genetic, infectious (bacteria, viruses) and environmental (chemicals) factors. Endocrine disruptors are exogenous chemicals that can interfere and impair the function of the endocrine system due to their interaction with estrogen receptors or their estrogen signaling pathways inducing adverse effects in the normal mammary development, originating cancer. They are heterogeneous chemicals and include numerous synthetic substances used worldwide in agriculture, industry and consumer products. The most common are plasticizers, such as bisphenol A (BPA), pesticides, such as dichlorodiphenyltrichloroethane, and polychlorinated biphenyls (PCBs). Xenoestrogens appear to serve an important role in the increased incidence of breast cancer in the United States and numerous other countries. Several studies have demonstrated the role of organochlorine xenoestrogens in breast cancer. Therefore, the overall cumulative exposure of women to estrogens results in an increased risk for this type of cancer. Factors like lifestyle and diet also serve a role in the increased incidence of this disease. The aim of the present study was to analyze these chemical compounds based on the key characteristics given by the IARC, with a special focus on breast cancer, to establish whether these compounds are carcinogens, and to create a model for future analysis of other endocrine disruptors.
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Affiliation(s)
- Gloria M Calaf
- Instituto de Alta Investigación, Universidad de Tarapacá, Arica 1000000, Chile
- Center for Radiological Research, Columbia University Medical Center, New York, NY 10032, USA
| | - Richard Ponce-Cusi
- Instituto de Alta Investigación, Universidad de Tarapacá, Arica 1000000, Chile
| | - Francisco Aguayo
- Programa de Virología, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago 8380000, Chile
- Advanced Center for Chronic Diseases (ACCDiS), Universidad de Chile, Santiago 8380000, Chile
| | - Juan P Muñoz
- Instituto de Alta Investigación, Universidad de Tarapacá, Arica 1000000, Chile
| | - Tammy C Bleak
- Instituto de Alta Investigación, Universidad de Tarapacá, Arica 1000000, Chile
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22
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Lin HW, Feng HX, Chen L, Yuan XJ, Tan Z. Maternal exposure to environmental endocrine disruptors during pregnancy is associated with pediatric germ cell tumors. NAGOYA JOURNAL OF MEDICAL SCIENCE 2020. [PMID: 32581411 PMCID: PMC7276419 DOI: 10.18999/nagjms.82.2.323] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Environmental endocrine disruptors (EEDs) are natural or synthetic chemical compounds that interfere with normal endocrine function in both wildlife and humans. Previous studies have indicated that EEDs may contribute to oncogenesis. This study explores the relationship between EEDs and pediatric germ cell tumors (GCTs). A case-control study was conducted in 84 pediatric patients from 2014 to 2017, including 42 subjects with immature teratoma, yolk sac tumor, or germinoma, and 42 controls who experienced pneumonia or trauma. Serum PFASs, including PFBS, PFHpA, PFHxS, PFOA, PFOS, PFNA, PFDA, PFUA, PFOSA, and PFDoA, were measured in each subject, and their history of possible EED exposure was reviewed. Six of the 10 measured PFASs were significantly increased in the GCT group relative to the control group. With respect to lifestyle history, only PFHxS levels were statistically significantly associated with GCTs as determined by logistic regression analysis. The odds ratio for a 1 ng/L increase in PFHxS was 19.47 (95% CI: 4.20-90.26). Furthermore, in the GCT and control groups, both parental consumption of barbecued foods and hair dye use among parents were significantly correlated with elevated serum PFHxS levels (ρ = 0.383, 0.325 in the patient group and ρ = 0.370, 0.339 in the control group; p < 0.05). Our study confirmed that children with GCTs from our institute had relatively high serum levels of PFASs relative to those of tumor-free pediatric patients. Serum PFHxS levels were independently associated with germ cell tumor occurrence.
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Affiliation(s)
- Hou-Wei Lin
- Department of Pediatric Urology, Xinhua Hospital Affiliated to Shanghai
Jiaotong University School of Medicine, Shanghai, China,Department of Pediatric Surgery, Jiaxing Maternity and Child Health Care
Hospital, Zhejiang, China
| | - Hai-Xia Feng
- Department of Pediatric gastroenterology and nutrition, Xinhua Hospital
Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Lin Chen
- Ministry of Education-Shanghai Key Laboratory of Children’s Environmental
Health, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine,
Shanghai, China
| | - Xiao-Jun Yuan
- Department of Pediatric Hematology/Oncology, Xinhua Hospital Affiliated to
Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Zhen Tan
- Department of Pediatric Hematology/Oncology, Xinhua Hospital Affiliated to
Shanghai Jiaotong University School of Medicine, Shanghai, China
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23
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Soave I, Occhiali T, Assorgi C, Marci R, Caserta D. Environmental toxin exposure in polycystic ovary syndrome women and possible ovarian neoplastic repercussion. Curr Med Res Opin 2020; 36:693-703. [PMID: 32046531 DOI: 10.1080/03007995.2020.1729108] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Purpose: Over the last two decades, increasing attention has been paid to environmental toxins and their effects on the female reproductive system. Endocrine disrupting chemicals (EDCs) are exogenous substances or mixtures that can mimic the action of steroid hormones and interfere with their metabolism. Advanced glycation end products (AGEs) are proinflammatory molecules that can interact with cell surface receptors and mediate the triggering of proinflammatory pathways and oxidative stress. The purpose of this review is to explore the effects of environmental toxin exposure in the pathogenesis of both polycystic ovary syndrome (PCOS) and OC (ovarian cancer), considered separately, and also to evaluate possible neoplastic ovarian repercussion after exposure in patients diagnosed with PCOS.Materials and methods: We searched PubMed for articles published in the English language with the use of the following MeSH search terms: "polycystic ovary syndrome" and "ovarian cancer" combined with "endocrine disruptors". Titles and abstracts were examined and full articles that met the selection criteria were retrieved. A manual search of review articles and cross-references completed the search.Results: Extensive data from different studies collected in recent years concerning the effects of EDC/AGE exposure have confirmed their role in the pathophysiology of both PCOS and OC. They favor PCOS/OC development through different mechanisms that finally lead to hormonal and metabolic disruption and epigenetic modifications.Conclusions: Environmental toxin exposure in PCOS women could favor neoplastic transformation by exacerbating and potentiating some PCOS features. Further research, although difficult, is needed in order to prevent further diffusion of these substances in the environment, or at least to provide adequate information to the population considered at risk.
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Affiliation(s)
- Ilaria Soave
- Department of Surgical and Clinical Sciences and Translational Medicine, S. Andrea Hospital, "Sapienza" University of Rome, Rome, Italy
| | - Tommaso Occhiali
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Italy
| | - Chiara Assorgi
- Department of Surgical and Clinical Sciences and Translational Medicine, S. Andrea Hospital, "Sapienza" University of Rome, Rome, Italy
| | - Roberto Marci
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Italy
| | - Donatella Caserta
- Department of Surgical and Clinical Sciences and Translational Medicine, S. Andrea Hospital, "Sapienza" University of Rome, Rome, Italy
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24
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Wu HC, Cohn BA, Cirillo PM, Santella RM, Terry MB. DDT exposure during pregnancy and DNA methylation alterations in female offspring in the Child Health and Development Study. Reprod Toxicol 2020; 92:138-147. [PMID: 30822522 PMCID: PMC6710160 DOI: 10.1016/j.reprotox.2019.02.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 02/07/2019] [Accepted: 02/25/2019] [Indexed: 12/14/2022]
Abstract
Studies measuring dichlorodiphenyltrichloroethane (DDT) exposure during key windows of susceptibility including the intrauterine period suggest that DDT exposure is associated with breast cancer risk. We hypothesized that prenatal DDT exposure is associated with DNA methylation. Using prospective data from 316 daughters in the Child Health and Development Study, we examined the association between prenatal exposure to DDTs and DNA methylation in blood collected in midlife (mean age: 49 years). To identify differentially methylated regions (DMRs) associated with markers of DDTs (p,p'-DDT and the primary metabolite of p,p'-DDT, p,p'-DDE, and o,p'-DDT, the primary constituents of technical DDT), we measured methylation in 30 genes important to breast cancer. We observed DDT DMRs in three genes, CCDC85A, CYP1A1 and ZFPM2, each of which has been previously implicated in pubertal development and breast cancer susceptibility. These findings suggest prenatal DDT exposure may have life-long consequence through alteration in genes relevant to breast cancer.
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Affiliation(s)
- Hui-Chen Wu
- Herbert Irving Comprehensive Cancer Center, Columbia University Medical Center, New York, NY
- Department of Environmental Health Sciences, Mailman School of Public Health of Columbia University, New York, NY
| | - Barbara A. Cohn
- Child Health and Development Studies, Public Health Institute, Berkeley, California
| | - Piera M. Cirillo
- Child Health and Development Studies, Public Health Institute, Berkeley, California
| | - Regina M. Santella
- Herbert Irving Comprehensive Cancer Center, Columbia University Medical Center, New York, NY
- Department of Environmental Health Sciences, Mailman School of Public Health of Columbia University, New York, NY
| | - Mary Beth Terry
- Herbert Irving Comprehensive Cancer Center, Columbia University Medical Center, New York, NY
- Department of Environmental Health Sciences, Mailman School of Public Health of Columbia University, New York, NY
- Imprints Center, Columbia University Medical Center, New York, NY
- Department of Epidemiology, Mailman School of Public Health of Columbia University, New York, NY
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25
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Hall JM, Greco CW. Perturbation of Nuclear Hormone Receptors by Endocrine Disrupting Chemicals: Mechanisms and Pathological Consequences of Exposure. Cells 2019; 9:cells9010013. [PMID: 31861598 PMCID: PMC7016921 DOI: 10.3390/cells9010013] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 12/13/2019] [Accepted: 12/17/2019] [Indexed: 01/09/2023] Open
Abstract
Much of the early work on Nuclear Hormone Receptors (NHRs) focused on their essential roles as mediators of sex steroid hormone signaling in reproductive development and function, and thyroid hormone-dependent formation of the central nervous system. However, as NHRs display tissue-specific distributions and activities, it is not surprising that they are involved and vital in numerous aspects of human development and essential for homeostasis of all organ systems. Much attention has recently been focused on the role of NHRs in energy balance, metabolism, and lipid homeostasis. Dysregulation of NHR function has been implicated in numerous pathologies including cancers, metabolic obesity and syndrome, Type II diabetes mellitus, cardiovascular disease, hyperlipidemia, male and female infertility and other reproductive disorders. This review will discuss the dysregulation of NHR function by environmental endocrine disrupting chemicals (EDCs), and the associated pathological consequences of exposure in numerous tissues and organ systems, as revealed by experimental, clinical, and epidemiological studies.
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26
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Wei Y, Zhu J. Blood levels of endocrine-disrupting metals and prevalent breast cancer among US women. Med Oncol 2019; 37:1. [DOI: 10.1007/s12032-019-1328-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Accepted: 10/28/2019] [Indexed: 11/28/2022]
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27
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Huang W, He Y, Xiao J, Huang Y, Li A, He M, Wu K. Risk of breast cancer and adipose tissue concentrations of polychlorinated biphenyls and organochlorine pesticides: a hospital-based case-control study in Chinese women. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:32128-32136. [PMID: 31494853 DOI: 10.1007/s11356-019-06404-3] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Accepted: 09/03/2019] [Indexed: 02/05/2023]
Abstract
Polychlorinated biphenyls (PCBs), dichlorodiphenyltrichloroethane (DDT), and dichlorodiphenyldichloroethylene (DDE) are suspected to be associated with breast cancer risk, but the results are controversial. This study was performed to evaluate the associations between adipose tissue PCB, DDT, and DDE concentrations and breast cancer risk. Two hundred and nine pathologically diagnosed breast cancer cases and 165 controls were recruited from three local hospitals in Shantou city, China, from 2014 to 2016. Concentrations of 7 PCB congeners, p,p'-DDT, and p,p'-DDE were measured in adipose tissues obtained from the breast for cases and the breast/abdomen for controls during surgery. Clinicopathologic information and demographic characteristics were collected from medical records. PCBs, p,p'-DDT, and p,p'-DDE concentrations in adipose tissues were compared between cases and controls. Multivariate logistic regression model was used to analyze the risk of breast cancer by PCBs, p,p'-DDT, and p,p'-DDE concentrations in adipose tissues. Breast cancer cases have relatively higher menarche age, higher breastfeeding and postmenopausal proportion than controls. Levels of PCB-52, PCB-101, PCB-118, PCB-138, PCB-153, PCB-180, total PCBs (∑PCBs), and p,p'-DDE were relatively higher in breast cancer cases than controls. Breast cancer risk was increased in the third tertile of PCB-101, PCB-118, PCB-138, PCB-153, PCB-180, ∑PCBs, and p,p'-DDE as compared with the first tertile in both adjusted and unadjusted logistic regression models (odds ratios [ORs] were from 1.58 to 7.88); and increased linearly across categories of PCB-118 and p,p'-DDE in unadjusted model, and PCB-118 and PCB-153 in the adjusted model with trend (all P < 0.01). While breast cancer risk was declined in the second tertile of PCB-28, PCB-52, and PCB-101 in both unadjusted and adjusted models, also second tertile of p,p'-DDT and third tertile of PCB-28 in the adjusted models. This study suggests associations between the exposure of PCBs, p,p'-DDT, and p,p'-DDE and breast cancer risk. Based on adjusted models, PCB-118, PCB-138, PCB-153, PCB-180, ∑PCBs, and p,p'-DDE exposures increase breast cancer risk at current exposure levels, despite existing inconsistent even inverse results in PCB-28, PCB-52, PCB-101, and p,p'-DDT. More epidemiological studies are still needed to verify these findings in different populations.
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Affiliation(s)
- Wenlong Huang
- Department of Preventive Medicine, Shantou University Medical College, No.22, Xinling Rd., Shantou, 515041, Guangdong, China
| | - Yuanfang He
- Department of Preventive Medicine, Shantou University Medical College, No.22, Xinling Rd., Shantou, 515041, Guangdong, China
| | - Jiefeng Xiao
- Department of Preventive Medicine, Shantou University Medical College, No.22, Xinling Rd., Shantou, 515041, Guangdong, China
| | - Yuanni Huang
- Department of Preventive Medicine, Shantou University Medical College, No.22, Xinling Rd., Shantou, 515041, Guangdong, China
| | - Anna Li
- Department of Preventive Medicine, Shantou University Medical College, No.22, Xinling Rd., Shantou, 515041, Guangdong, China
| | - Meirong He
- Department of Preventive Medicine, Shantou University Medical College, No.22, Xinling Rd., Shantou, 515041, Guangdong, China
| | - Kusheng Wu
- Department of Preventive Medicine, Shantou University Medical College, No.22, Xinling Rd., Shantou, 515041, Guangdong, China.
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28
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Bhardwaj P, Biswas GP, Bhunia B. Docking-based inverse virtual screening strategy for identification of novel protein targets for triclosan. CHEMOSPHERE 2019; 235:976-984. [PMID: 31561314 DOI: 10.1016/j.chemosphere.2019.07.027] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 07/02/2019] [Accepted: 07/03/2019] [Indexed: 06/10/2023]
Abstract
Triclosan (TCS) is chemically designated as 5-chloro-2-(2,4-dichlorophenoxy) phenol and is considered as endocrine-disrupting chemical (EDC). The various diseases found due to exposure of TCS, have been linked with modulation of the human enoyl-acyl carrier protein-reductase (hER). However, the new protein targets for TCS other than hER, which are responsible for various diseases, are still unknown. In the present study, a bioinformatics approach was used to identify new possible targets for TCS. A text mining study was initially performed to understand the association of TCS in various biochemical processes. Discovery studio software 4.1 was used to carry out inverse virtual screening for 226 numbers of pathway proteins by docking study using CHARMm based docking tool, and twenty proteins were screened. CDOCKER energy values lower than -12.65 kcal/mol was considered for the screening of selected proteins. Three new proteins; Receptor-interacting protein 1 (RIP1), Apoptosis signal-regulating kinase 1 (ASK1) and B-cell lymphoma 2 (Bcl-2) from Apoptosis Signaling Pathway revealed best CDOCKER energy with triclosan which was -26.88, -23.34 and -22.96 kcal/mol respectively. The interaction of TCS with RIP1 and ASK1 were mostly hydrophobic; however, hydrogen bond type interaction was found in TCS/Bcl2 complex. Therefore, docking-based inverse virtual screening study suggests that TCS has other targets rather than hER, which can modulate various biochemical processes. The docking protocol was validated through evaluation of root-mean-square deviation (RMSD), key interaction score system (KISS) and the relationship between the docking energy and toxicity data available in ToxCast database. Low RMSD value (0.55 ˚A) and high KISS score (0.66) along with higher correlation (R2 = 0.9798) between docking affinity and toxicity indicated that docking protocol can be used to optimize the binding energetics.
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Affiliation(s)
- Prashant Bhardwaj
- Department of Computer Science and Engineering, Indian Institute of Technology (Indian School of Mines) Dhanbad, 826004, India; Department of Computer Science and Engineering, National Institute of Technology, Agartala, 799046, India.
| | - G P Biswas
- Department of Computer Science and Engineering, Indian Institute of Technology (Indian School of Mines) Dhanbad, 826004, India.
| | - Biswanath Bhunia
- Department of Bio Engineering, National Institute of Technology, Agartala, 799046, India.
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29
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Wen X, Xiong Y, Qu X, Jin L, Zhou C, Zhang M, Zhang Y. The risk of endometriosis after exposure to endocrine-disrupting chemicals: a meta-analysis of 30 epidemiology studies. Gynecol Endocrinol 2019; 35:645-650. [PMID: 30907174 DOI: 10.1080/09513590.2019.1590546] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Endocrine-disrupting chemicals (EDCs) are suspected to be associated with endometriosis (EMs). This study aimed to synthesize published data and evaluate the relationship between four classic EDCs exposure and the risk of EMs. A systematic literature search for original peer reviewed papers was performed in the databases PubMed, EMBASE, and Web of Science based on inclusion criteria up to January 2018. Subsequently, a total of 20 papers conducting 30 studies fulfilled the eligibility criteria and were included in this meta-analysis (four studies for bisphenol A (BPA), 12 studies for polychlorinated biphenyls (PCBs), eight studies for organochlorine pesticides (OCPs), and six studies for phthalate esters (PAEs)). The overall odds ratio (OR) across all exposures and EMs was 1.41 (95% confidence interval (CI): 1.23-1.60). When assessing four specific chemicals, respectively, consistent increases in the risk of EMs were found in PCBs group (OR = 1.58; 95% CI: 1.18-2.12), OCPs group (OR = 1.40; 95% CI: 1.02-1.92) and PAEs group (OR = 1.27; 95% CI: 1.00-1.60), while BPA showed no significant association with EMs. Besides, in the di-(2-ethylhexyl)-phthalate (DEHP) group - the most commonly used PAEs, significant risk was also found (OR = 1.42; 95% CI: 1.19-1.70). The current meta-analysis strengthens the evidence that specific EDCs or their metabolites may promote the occurrence of EMs.
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Affiliation(s)
- Xue Wen
- a Center of Reproductive Medicine , Zhongnan Hospital of Wuhan University , Wuhan , P. R. China
| | - Yao Xiong
- a Center of Reproductive Medicine , Zhongnan Hospital of Wuhan University , Wuhan , P. R. China
| | - Xinlan Qu
- a Center of Reproductive Medicine , Zhongnan Hospital of Wuhan University , Wuhan , P. R. China
| | - Ling Jin
- a Center of Reproductive Medicine , Zhongnan Hospital of Wuhan University , Wuhan , P. R. China
| | - Chun Zhou
- a Center of Reproductive Medicine , Zhongnan Hospital of Wuhan University , Wuhan , P. R. China
| | - Ming Zhang
- a Center of Reproductive Medicine , Zhongnan Hospital of Wuhan University , Wuhan , P. R. China
| | - Yuanzhen Zhang
- a Center of Reproductive Medicine , Zhongnan Hospital of Wuhan University , Wuhan , P. R. China
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30
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Persistent Organic Pollutants and Breast Cancer: A Systematic Review and Critical Appraisal of the Literature. Cancers (Basel) 2019; 11:cancers11081063. [PMID: 31357644 PMCID: PMC6721417 DOI: 10.3390/cancers11081063] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 07/23/2019] [Accepted: 07/24/2019] [Indexed: 01/12/2023] Open
Abstract
Persistent organic pollutants (POPs) bioaccumulate in the food chain and have been detected in human blood and adipose tissue. Experimental studies demonstrated that POPs can cause and promote growth of breast cancer. However, inconsistent results from epidemiological studies do not support a causal relationship between POPs and breast cancer in women. To identify individual POPs that are repeatedly found to be associated with both breast cancer incidence and progression, and to demystify the observed inconsistencies between epidemiological studies, we conducted a systematic review of 95 studies retrieved from three main electronic databases. While no clear pattern of associations between blood POPs and breast cancer incidence could be drawn, POPs measured in breast adipose tissue were more clearly associated with higher breast cancer incidence. POPs were more consistently associated with worse breast cancer prognosis whether measured in blood or breast adipose tissue. In contrast, POPs measured in adipose tissue other than breast were inversely associated with both breast cancer incidence and prognosis. Differences in biological tissues used for POPs measurement and methodological biases explain the discrepancies between studies results. Some individual compounds associated with both breast cancer incidence and progression, deserve further investigation.
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31
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Cocci P, Mosconi G, Palermo FA. Gene expression profiles of putative biomarkers in juvenile loggerhead sea turtles (Caretta caretta) exposed to polycyclic aromatic hydrocarbons. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 246:99-106. [PMID: 30529946 DOI: 10.1016/j.envpol.2018.11.098] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 11/16/2018] [Accepted: 11/28/2018] [Indexed: 06/09/2023]
Abstract
There is evidence that polycyclic aromatic hydrocarbons (PAHs) are consistently the predominant organic contaminants in concentration found in loggerhead sea turtles (Caretta caretta) from the North and Central Adriatic Sea. Hence this study investigates the PAH toxicity to loggerheads by using a particular set of genes [i.e. CYP1B, CAT, GPX, GSTT1, SOD3, DNMT1, Epoxide hydrolase 1 (EPHX1), Poly (ADP-ribose) polymerase 1 (PARP1), Lamin-A/C isoform 3 (LMNA), Talin 1 (TLN1), Annexin A1 (ANXA1)] whose altered expression is potentially dependent on and specific for the PAH-related mechanism of action. Twenty healthy juvenile loggerheads were thus divided into high and low exposure groups (mean of ΣPAHs: 80.34 ng mL-1 vs. 8.84 ng mL-1, P < 0.0001) according to the median split of ΣPAHs. Interestingly, we found that the whole blood mRNA levels of each gene biomarker tested were significantly increased in high PAH-exposed turtles thus proving to be useful for the biological monitoring of PAH toxicity and hematotoxicity in sea turtles.
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Affiliation(s)
- Paolo Cocci
- School of Biosciences and Veterinary Medicine, University of Camerino, Via Gentile III Da Varano, I-62032, Camerino, MC, Italy
| | - Gilberto Mosconi
- School of Biosciences and Veterinary Medicine, University of Camerino, Via Gentile III Da Varano, I-62032, Camerino, MC, Italy
| | - Francesco Alessandro Palermo
- School of Biosciences and Veterinary Medicine, University of Camerino, Via Gentile III Da Varano, I-62032, Camerino, MC, Italy.
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32
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Ventura C, Zappia CD, Lasagna M, Pavicic W, Richard S, Bolzan AD, Monczor F, Núñez M, Cocca C. Effects of the pesticide chlorpyrifos on breast cancer disease. Implication of epigenetic mechanisms. J Steroid Biochem Mol Biol 2019; 186:96-104. [PMID: 30290214 DOI: 10.1016/j.jsbmb.2018.09.021] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 09/27/2018] [Accepted: 09/29/2018] [Indexed: 11/21/2022]
Abstract
Chlorpyrifos (CPF) is an organophosphorus pesticide used for agricultural pest control all over the world. We have previously demonstrated that environmental concentrations of this pesticide alter mammary gland histological structure and hormonal balance in rats chronically exposed. In this work, we analyzed the effects of CPF on mammary tumors development. Our results demonstrated that CPF increases tumor incidence and reduces latency of NMU-induced mammary tumors. Although no changes were observed in tumor growth rate, we found a reduced steroid hormone receptor expression in the tumors of animals exposed to the pesticide. Moreover, we analyzed the role of epigenetic mechanisms in CPF effects. Our results indicated that CPF alters HDAC1 mRNA expression in mammary gland, although no changes were observed in DNA methylation. In summary, we demonstrate that the exposure to CPF promotes mammary tumors development with a reduced steroid receptors expression. It has also been found that CPF affects HDAC1 mRNA levels in mammary tissue pointing that CPF may act as a breast cancer risk factor.
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Affiliation(s)
- C Ventura
- Laboratorio de Radioisótopos, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina; Laboratorio de Citogenética y Mutagénesis, IMBICE (CONICET La Plata-UNLP-CICPBA), Universidad Nacional de La Plata, Facultad de Ciencias Naturales y Museo. La Plata, Buenos Aires, Argentina
| | - C D Zappia
- Laboratorio de Farmacología de Receptores, ININFA, UBA-CONICET, Argentina
| | - M Lasagna
- Laboratorio de Radioisótopos, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina
| | - W Pavicic
- Laboratorio de Citogenética y Mutagénesis, IMBICE (CONICET La Plata-UNLP-CICPBA), Universidad Nacional de La Plata, Facultad de Ciencias Naturales y Museo. La Plata, Buenos Aires, Argentina
| | - S Richard
- Laboratorio de Citogenética y Mutagénesis, IMBICE (CONICET La Plata-UNLP-CICPBA), Universidad Nacional de La Plata, Facultad de Ciencias Naturales y Museo. La Plata, Buenos Aires, Argentina
| | - A D Bolzan
- Laboratorio de Citogenética y Mutagénesis, IMBICE (CONICET La Plata-UNLP-CICPBA), Universidad Nacional de La Plata, Facultad de Ciencias Naturales y Museo. La Plata, Buenos Aires, Argentina
| | - F Monczor
- Laboratorio de Farmacología de Receptores, ININFA, UBA-CONICET, Argentina
| | - M Núñez
- Laboratorio de Radioisótopos, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina
| | - C Cocca
- Laboratorio de Radioisótopos, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina; Instituto de Química y Fisicoquímica Biológicas "Prof. Alejandro C. Paladini", IQUIFIB UBA-CONICET, Ciudad Autónoma de Buenos Aires, Argentina.
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33
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Montagnini BG, Pernoncine KV, Borges LI, Costa NO, Moreira EG, Anselmo-Franci JA, Kiss ACI, Gerardin DCC. Investigation of the potential effects of triclosan as an endocrine disruptor in female rats: Uterotrophic assay and two-generation study. Toxicology 2018; 410:152-165. [DOI: 10.1016/j.tox.2018.10.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 09/21/2018] [Accepted: 10/11/2018] [Indexed: 12/15/2022]
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Perrot-Applanat M, Kolf-Clauw M, Michel C, Beausoleil C. Alteration of mammary gland development by bisphenol a and evidence of a mode of action mediated through endocrine disruption. Mol Cell Endocrinol 2018; 475:29-53. [PMID: 30048677 DOI: 10.1016/j.mce.2018.06.015] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 06/26/2018] [Accepted: 06/26/2018] [Indexed: 01/08/2023]
Abstract
The development and function of the mammary gland are endocrine-dependent processes, depending on the stage of development. Foetal and/or postnatal exposure to low doses of BPA alters tissue organisation through epithelial proliferation and stroma-epithelial interactions. BPA also alters the expression of E2-dependent epithelial and stroma transcriptomes. Several signalling pathways are consistent with the observed phenotype: proliferation and apoptosis, a focal adhesion pathway indicating changes in biomechanical properties of the extracellular matrix, and immune function. Some of BPA's effects are reversed by oestrogen and/or GPER inhibitors. BPA also alters the expression of epigenetic marks (EZH2, HOTAIR), which would explain the delayed effect of foetal BPA exposure. In conclusion, experimental evidence shows that pre- or postnatal BPA exposure consistently causes endocrine modifications in the mammary tissue of different animal species, disrupting stromal-epithelial interactions and ultimately increasing its susceptibility to carcinogens. An interspecies comparison highlights why and how these effects apply to humans.
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Affiliation(s)
| | - Martine Kolf-Clauw
- CREFRE, Toulouse University, INSERM, Toulouse Veterinary School, 23 chemin des Capelles, BP 87614, F 310176, Toulouse Cedex 3, France
| | - Cécile Michel
- ANSES, Risk Assessment Department, Maisons-Alfort, France.
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35
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Sharma S, Ahmad S, Khan MF, Parvez S, Raisuddin S. In silico molecular interaction of bisphenol analogues with human nuclear receptors reveals their stronger affinity vs. classical bisphenol A. Toxicol Mech Methods 2018; 28:660-669. [DOI: 10.1080/15376516.2018.1491663] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Shikha Sharma
- Department of Medical Elementology & Toxicology, Jamia Hamdard (Hamdard University), New Delhi, India
| | - Shahzad Ahmad
- Department of Medical Elementology & Toxicology, Jamia Hamdard (Hamdard University), New Delhi, India
| | - Mohemmed Faraz Khan
- Department of Pharmaceutical Chemistry, Jamia Hamdard (Hamdard University), New Delhi, India
| | - Suhel Parvez
- Department of Medical Elementology & Toxicology, Jamia Hamdard (Hamdard University), New Delhi, India
| | - Sheikh Raisuddin
- Department of Medical Elementology & Toxicology, Jamia Hamdard (Hamdard University), New Delhi, India
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Abstract
Breast cancer is considered a major and common health problem in both developing and developed countries. The etiology of breast cancer, the most frequent malignancy diagnosed in women in the western world, has remained unidentified. Chemicals as the organophosphorous pesticide malathion have been used to control a wide range of sucking and chewing pests of field crops, and are involved in the etiology of breast cancers. The association between breast cancer initiation and prolonged exposure to estrogen suggests that this hormone may also have an etiologic role in such a process. However, the key factors behind the initiation of breast cancer remain to be elucidated. The effect of environmental substances, such as malathion and estrogen was analyzed in an experimental rat mammary gland model. Different cytoplasmic proteins are key in the transformation of a normal cell to a malignant tumor cell and among these are the Ras super family and Ras homologous A (Rho-A). Both types of proteins were greater in animals treated with malathion than those with estrogens. E-Cadherins constitute a large family of cell surface proteins.Resultsshowed greater expression of E-Cadherin and vimentin than c-Ha-ras and Rho-A in rats treated by estrogens. In breast cancer, analysis using immunohistochemical markers is an essential component of routine pathological examinations, and plays an important role in the management of the disease by providing diagnostic and prognostic strategies.The aimof the present study was to identify markers that can be used as a prognostic tool for breast cancer patients.
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Gerona RR, Schwartz JM, Pan J, Friesen MM, Lin T, Woodruff TJ. Suspect screening of maternal serum to identify new environmental chemical biomonitoring targets using liquid chromatography-quadrupole time-of-flight mass spectrometry. JOURNAL OF EXPOSURE SCIENCE & ENVIRONMENTAL EPIDEMIOLOGY 2018; 28:101-108. [PMID: 29019345 PMCID: PMC6639024 DOI: 10.1038/jes.2017.28] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Accepted: 08/08/2017] [Indexed: 05/17/2023]
Abstract
The use and advantages of high-resolution mass spectrometry (MS) as a discovery tool for environmental chemical monitoring has been demonstrated for environmental samples but not for biological samples. We developed a method using liquid chromatography-quadrupole time-of-flight MS (LC-QTOF/MS) for discovery of previously unmeasured environmental chemicals in human serum. Using non-targeted data acquisition (full scan MS analysis) we were able to screen for environmental organic acids (EOAs) in 20 serum samples from second trimester pregnant women. We define EOAs as environmental organic compounds with at least one dissociable proton which are utilized in commerce. EOAs include environmental phenols, phthalate metabolites, perfluorinated compounds, phenolic metabolites of polybrominated diphenyl ethers and polychlorinated biphenyls, and acidic pesticides and/or predicted acidic pesticide metabolites. Our validated method used solid phase extraction, reversed-phase chromatography in a C18 column with gradient elution, electrospray ionization in negative polarity and automated tandem MS (MS/MS) data acquisition to maximize true positive rates. We identified "suspect EOAs" using Agilent MassHunter Qualitative Analysis software, to match chemical formulas generated from each sample run with molecular formulas in our unique database of 693 EOAs assembled from multiple environmental literature sources. We found potential matches for 282 (41%) of the EOAs in our database. Sixty-five of these suspect EOAs were detected in at least 75% of the samples; only 19 of these compounds are currently biomonitored in National Health and Nutrition Examination Survey. We confirmed two of three suspect EOAs by LC-QTOF/MS using a targeted method developed through LC-MS/MS, reporting the first confirmation of benzophenone-1 and bisphenol S in pregnant women's sera. Our suspect screening workflow provides an approach to comprehensively scan environmental chemical exposures in humans. This can provide a better source of exposure information to help improve exposure and risk evaluation of industrial chemicals.
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Affiliation(s)
- Roy R. Gerona
- Clinical Toxicology and Environmental Biomonitoring Laboratory, Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco
| | - Jackie M. Schwartz
- Program on Reproductive Health and the Environment, Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Francisco
| | - Janet Pan
- Program on Reproductive Health and the Environment, Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Francisco
| | - Matthew M. Friesen
- Clinical Toxicology and Environmental Biomonitoring Laboratory, Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco
| | - Thomas Lin
- Clinical Toxicology and Environmental Biomonitoring Laboratory, Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco
| | - Tracey J. Woodruff
- Program on Reproductive Health and the Environment, Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Francisco
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Polo A, Nittoli C, Crispo A, Langastro T, Cocco S, Severino L, De Laurentiis M, Ciliberto G, Montella M, Budillon A, Costantini S. An interaction network approach to study the correlation between endocrine disrupting chemicals and breast cancer. MOLECULAR BIOSYSTEMS 2017; 13:2687-2696. [PMID: 29072741 DOI: 10.1039/c7mb00489c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Endocrine disrupting chemicals (EDCs) are natural or synthetic exogenous substances affecting human health. Although present at low concentrations in the environment, they can cause a broad range of negative effects on the endocrine functions by mimicking the action of steroid hormones due to their structural similarity. Hormonal unbalance can play an important role in carcinogenesis at any stage of disease. In the case of the breast cancer, EDCs directly affect the transformation of normal breast cells into cancer cells by interfering with hormonal regulation and by inducing the alteration of factors that regulate gene expression. The principal aims of this work were to study the interaction networks of proteins modulated in breast cancer by either environmental EDCs or mycotoxins, and to identify the proteins with the strongest coordination role defined as hub nodes. Our studies evidenced the presence of seven and six hub proteins in two EDCs and mycotoxins networks, respectively. Then, by merging the two networks, we identified that three hub nodes (BCL2, ESR2 and CTNNB1) in the environmental EDCs network show direct interactions with three hub nodes (CASP8, RELA and MKI67) in the mycotoxins network. These data highlighted that two networks are linked through proteins involved in the apoptosis regulation and in processes related to cell proliferation and survival, and, thus, in breast cancer progression.
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Affiliation(s)
- Andrea Polo
- Epidemiology Unit, Istituto Nazionale Tumori "Fondazione G. Pascale" - IRCCS, Napoli, Italy
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Lope V, García-Pérez J, Pérez-Gómez B, Pedraza-Flechas AM, Alguacil J, González-Galarzo MC, Alba MA, van der Haar R, Cortés-Barragán RA, Pedraz-Pingarrón C, Moreo P, Santamariña C, Ederra M, Vidal C, Salas-Trejo D, Sánchez-Contador C, Llobet R, Pollán M. Occupational exposures and mammographic density in Spanish women. Occup Environ Med 2017; 75:124-131. [PMID: 29074552 DOI: 10.1136/oemed-2017-104580] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Revised: 09/20/2017] [Accepted: 09/28/2017] [Indexed: 12/29/2022]
Abstract
OBJECTIVES The association between occupational exposures and mammographic density (MD), a marker of breast cancer risk, has not been previously explored. Our objective was to investigate the influence of occupational exposure to chemical, physical and microbiological agents on MD in adult women. METHODS This is a population-based cross-sectional study based on 1476 female workers aged 45-65 years from seven Spanish breast cancer screening programmes. Occupational history was surveyed by trained staff. Exposure to occupational agents was assessed using the Spanish job-exposure matrix MatEmESp. Percentage of MD was measured by two radiologists using a semiautomatic computer tool. The association was estimated using mixed log-linear regression models adjusting for age, education, body mass index, menopausal status, parity, smoking, alcohol intake, type of mammography, family history of breast cancer and hormonal therapy use, and including screening centre and professional reader as random effects terms. RESULTS Although no association was found with most of the agents, women occupationally exposed to perchloroethylene (eβ=1.51; 95% CI 1.04 to 2.19), ionising radiation (eβ=1.23; 95% CI 0.99 to 1.52) and mould spores (eβ=1.44; 95% CI 1.01 to 2.04) tended to have higher MD. The percentage of density increased 12% for every 5 years exposure to perchloroethylene or mould spores, 11% for every 5 years exposure to aliphatic/alicyclic hydrocarbon solvents and 3% for each 5 years exposure to ionising radiation. CONCLUSIONS Exposure to perchloroethylene, ionising radiation, mould spores or aliphatic/alicyclic hydrocarbon solvents in occupational settings could be associated with higher MD. Further studies are needed to clarify the accuracy and the reasons for these findings.
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Affiliation(s)
- Virginia Lope
- Cancer and Environmental Epidemiology Unit, National Center for Epidemiology, Carlos III Institute of Health, Madrid, Spain.,Consortium for Biomedical Research in Epidemiology and Public Health (CIBER Epidemiología y Salud Pública - CIBERESP), Madrid, Spain
| | - Javier García-Pérez
- Cancer and Environmental Epidemiology Unit, National Center for Epidemiology, Carlos III Institute of Health, Madrid, Spain.,Consortium for Biomedical Research in Epidemiology and Public Health (CIBER Epidemiología y Salud Pública - CIBERESP), Madrid, Spain
| | - Beatriz Pérez-Gómez
- Cancer and Environmental Epidemiology Unit, National Center for Epidemiology, Carlos III Institute of Health, Madrid, Spain.,Consortium for Biomedical Research in Epidemiology and Public Health (CIBER Epidemiología y Salud Pública - CIBERESP), Madrid, Spain
| | - Ana María Pedraza-Flechas
- Cancer and Environmental Epidemiology Unit, National Center for Epidemiology, Carlos III Institute of Health, Madrid, Spain
| | - Juan Alguacil
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBER Epidemiología y Salud Pública - CIBERESP), Madrid, Spain.,Centro de Investigación en Salud y Medio Ambiente (CYSMA), Universidad de Huelva, Huelva, Spain
| | | | - Miguel Angel Alba
- Área de Higiene Industrial, PREMAP Seguridad y Salud S.L.U, Barcelona, Spain
| | | | | | | | - Pilar Moreo
- Aragon Breast Cancer Screening Program, Aragon Health Service, Zaragoza, Spain
| | - Carmen Santamariña
- Servicio de Alertas Epidemiolóxicas, Programa Galego Diagnostico Precoz Cancro de Mama, Unidade Central A Coruña, Conselleria de Sanidade, A Coruña, Spain
| | - María Ederra
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBER Epidemiología y Salud Pública - CIBERESP), Madrid, Spain.,Public Health Institute, Navarra Breast Cancer Screening Programme, Pamplona, Spain
| | - Carmen Vidal
- Prevention and Control Program, Catalan Institute of Oncology, Barcelona, Spain
| | - Dolores Salas-Trejo
- Valencia Breast Cancer Screening Program, General Directorate Public Health, Valencia, Spain
| | | | - Rafael Llobet
- Institute of Computer Technology, Universitat Politècnica de València, Valencia, Spain
| | - Marina Pollán
- Cancer and Environmental Epidemiology Unit, National Center for Epidemiology, Carlos III Institute of Health, Madrid, Spain.,Consortium for Biomedical Research in Epidemiology and Public Health (CIBER Epidemiología y Salud Pública - CIBERESP), Madrid, Spain
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Gray JM, Rasanayagam S, Engel C, Rizzo J. State of the evidence 2017: an update on the connection between breast cancer and the environment. Environ Health 2017; 16:94. [PMID: 28865460 PMCID: PMC5581466 DOI: 10.1186/s12940-017-0287-4] [Citation(s) in RCA: 109] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Accepted: 07/17/2017] [Indexed: 05/23/2023]
Abstract
BACKGROUND In this review, we examine the continually expanding and increasingly compelling data linking radiation and various chemicals in our environment to the current high incidence of breast cancer. Singly and in combination, these toxicants may have contributed significantly to the increasing rates of breast cancer observed over the past several decades. Exposures early in development from gestation through adolescence and early adulthood are particularly of concern as they re-shape the program of genetic, epigenetic and physiological processes in the developing mammary system, leading to an increased risk for developing breast cancer. In the 8 years since we last published a comprehensive review of the relevant literature, hundreds of new papers have appeared supporting this link, and in this update, the evidence on this topic is more extensive and of better quality than that previously available. CONCLUSION Increasing evidence from epidemiological studies, as well as a better understanding of mechanisms linking toxicants with development of breast cancer, all reinforce the conclusion that exposures to these substances - many of which are found in common, everyday products and byproducts - may lead to increased risk of developing breast cancer. Moving forward, attention to methodological limitations, especially in relevant epidemiological and animal models, will need to be addressed to allow clearer and more direct connections to be evaluated.
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Affiliation(s)
- Janet M. Gray
- Department of Psychology and Program in Science, Technology, and Society, Vassar College, 124 Raymond Avenue, Poughkeepsie, NY 12604-0246 USA
| | - Sharima Rasanayagam
- Breast Cancer Prevention Partners, 1388 Sutter St., Suite 400, San Francisco, CA 94109-5400 USA
| | - Connie Engel
- Breast Cancer Prevention Partners, 1388 Sutter St., Suite 400, San Francisco, CA 94109-5400 USA
| | - Jeanne Rizzo
- Breast Cancer Prevention Partners, 1388 Sutter St., Suite 400, San Francisco, CA 94109-5400 USA
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Mudumbi JBN, Ntwampe SKO, Matsha T, Mekuto L, Itoba-Tombo EF. Recent developments in polyfluoroalkyl compounds research: a focus on human/environmental health impact, suggested substitutes and removal strategies. ENVIRONMENTAL MONITORING AND ASSESSMENT 2017; 189:402. [PMID: 28721589 DOI: 10.1007/s10661-017-6084-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Accepted: 06/20/2017] [Indexed: 06/07/2023]
Abstract
Between the late 1940s and early 1950s, humans manufactured polyfluoroalkyl compounds (PFCs) using electrochemical fluorination and telomerisation technologies, whereby hydrogen atoms are substituted by fluorine atoms, thus conferring unnatural and unique physicochemical properties to these compounds. Presently, there are wide ranges of PFCs, and owing to their bioaccumulative properties, they have been detected in various environmental matrices and in human sera. It has thus been suggested that they are hazardous. Hence, this review aims at highlighting the recent development in PFC research, with a particular focus on perfluorooctanoate (PFOA) and perfluorooctane sulfonate (PFOS), the most studied and predominantly found PFCs in various environmental matrices, although recent reports have included perfluorobutane sulfonate (PFBS), which was previously regarded as innocuously harmless, when compared to its counterparts, PFOA and PFOS. As such, proper investigations are thus required for a better understanding of short-chain PFC substitutes, which have been suggested as suitable replacements to long-chained PFCs, although these substitutes have also been suggested to pose various health risks comparable to those associated with long-chain PFCs. Similarly, several novel technologies, such as PFC reduction using zero-valent iron, including removal at point of use, adsorption and coagulation, have been proposed. However, regardless of how efficient removers some of these techniques have proven to be, short-chain PFCs remain a challenge to overcome for scientists, in this regard.
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Affiliation(s)
- John Baptist Nzukizi Mudumbi
- Bioresource Engineering Research Group (BioERG), Department of Biotechnology, Cape Peninsula University of Technology, PO Box 652, Cape Town, 8000, South Africa.
| | - Seteno Karabo Obed Ntwampe
- Bioresource Engineering Research Group (BioERG), Department of Biotechnology, Cape Peninsula University of Technology, PO Box 652, Cape Town, 8000, South Africa
| | - Tandi Matsha
- Department of Bio-Medical Sciences, Faculty of Health and Wellness Science, Cape Peninsula University of Technology, PO Box 1906, Bellville, 7535, South Africa
| | - Lukhanyo Mekuto
- Bioresource Engineering Research Group (BioERG), Department of Biotechnology, Cape Peninsula University of Technology, PO Box 652, Cape Town, 8000, South Africa
| | - Elie Fereche Itoba-Tombo
- Bioresource Engineering Research Group (BioERG), Department of Biotechnology, Cape Peninsula University of Technology, PO Box 652, Cape Town, 8000, South Africa
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Wielsøe M, Kern P, Bonefeld-Jørgensen EC. Serum levels of environmental pollutants is a risk factor for breast cancer in Inuit: a case control study. Environ Health 2017; 16:56. [PMID: 28610584 PMCID: PMC5470290 DOI: 10.1186/s12940-017-0269-6] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Accepted: 06/06/2017] [Indexed: 05/20/2023]
Abstract
BACKGROUND Environmental Persistent Organic Pollutants (POPs) can alter the hormone homeostasis by mimicking, interfering or blocking the function of hormones; moreover POPs are hypothesized to modify the risk of breast cancer. The association between POPs and breast cancer has been widely studied but the conclusions are inconsistent. The present study examined the associations between serum levels of POPs and breast cancer with focus on the highly exposed Greenlandic Inuit population. METHODS The study design was a case-control study of Inuit women from Greenland. The participants were asked to complete a questionnaire with information on reproductive history and lifestyle and to provide a blood sample. The sampling was carried out in two time periods (2000-2003 and 2011-2014). The serum levels were determined of 14 polychlorinated biphenyls (PCBs), 11 organochlorine pesticides (OCPs), 16 perfluoroalkyl acids (PFAAs), 1 polybrominated biphenyl (PBB), and 9 polybrominated diphenyl ethers (PBDEs). Independent samples t-test was used to compare differences between cases and controls and odds ratios (OR) adjusted for identified confounders were obtained using logistic regression. RESULTS The study population included 77 breast cancer cases and 84 controls. The majority of the measured compounds declined significantly from 2000 - 2003 to 2011-2014. However, for the perfluorinated carboxylic acids (PFCAs) an increase was observed. The serum levels were significantly higher in cases compared to controls for the majority of the compounds, and after adjusting for age the difference was maintained for ∑OCP, dichlorodiphenyldichloroethylene (p,p'-DDE), ∑PFAA, ∑perfluorinated sulfonic acids (PFSA), perfluorohexane sulfonate (PFHxS), and perfluorooctane sulfonate (PFOS). For the lipophilic POPs, high serum levels (middel/highest vs. lowest tertile) of ∑PCB, ∑estrgoenicPCB, PCB99, PCB138, PCB153, PCB170, PCB170, and PCB183 was associated with breast cancer risk; for the amphiphilic PFAAs, high serum levels of ∑PFAA, ∑PFCA, ∑PFSA, perfluorooctanoic acid (PFOA), perfluorononanoic acid (PFNA), perfluorodecanoic acid (PFDA), PFHxS, and PFOS were associated with breast cancer risk. CONCLUSION Significant, positive associations between breast cancer risk and PCBs and PFAAs were observed. The associations indicate that environmental exposure to POPs can be a factor increasing the risk for breast cancer in Inuit women.
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Affiliation(s)
- Maria Wielsøe
- Centre for Arctic Health & Molecular Epidemiology, Department of Public Health, Aarhus University, Aarhus, Denmark
| | - Peder Kern
- Department of Gynecology and Obstetrics, Dronning Ingrid’s Hospital, Nuuk, Greenland
| | - Eva Cecilie Bonefeld-Jørgensen
- Centre for Arctic Health & Molecular Epidemiology, Department of Public Health, Aarhus University, Aarhus, Denmark
- Institute for Nursing and Health Science, University of Greenland, Nuuk, Greenland
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Samtani R, Sharma N, Garg D. Effects of Endocrine-Disrupting Chemicals and Epigenetic Modifications in Ovarian Cancer: A Review. Reprod Sci 2017; 25:7-18. [PMID: 28602118 DOI: 10.1177/1933719117711261] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Ovarian cancer (OC) is a relatively fatal female reproductive malignancy. Since the underlying causes are uncertain, it brings us to believe that both genetic and external factors contribute toward development of this lethal disorder. Exposure to endocrine-disrupting chemicals (EDCs) in the form of occupational usage of pesticides, fungicides, herbicides, plasticizers, cosmetics, and so on is potentially carcinogenic and their ability to cause epigenetic modifications has led us to hypothesize that they may play a catalytic role in OC progression. In response to synthetic chemicals, animal models have demonstrated disturbances in the development of ovaries and steroid hormonal levels but in humans, more research is required. The present review is an attempt to address the impact of EDCs on the hormonal system and gene methylation levels that may lead to malfunctioning of the ovaries which may consequently develop in the form of cancer. It can be concluded that endocrine disruptors do have a potential carcinogenicity and their high proportions in human body may cause epigenetic modifications, prompting ovarian surface epithelium to grow in an abnormal manner.
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Affiliation(s)
- Ratika Samtani
- 1 Amity Institute of Anthropology, Amity University, Noida, Uttar Pradesh, India
| | - Noopur Sharma
- 1 Amity Institute of Anthropology, Amity University, Noida, Uttar Pradesh, India
| | - Deepali Garg
- 2 Dr Deepali Path Labs & Cancer Diagnostic Centre, Bathinda, Punjab, India
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Tapia-Orozco N, Santiago-Toledo G, Barrón V, Espinosa-García AM, García-García JA, García-Arrazola R. Environmental epigenomics: Current approaches to assess epigenetic effects of endocrine disrupting compounds (EDC's) on human health. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2017; 51:94-99. [PMID: 28215500 DOI: 10.1016/j.etap.2017.02.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Revised: 02/02/2017] [Accepted: 02/03/2017] [Indexed: 06/06/2023]
Abstract
Environmental Epigenomics is a developing field to study the epigenetic effect on human health from exposure to environmental factors. Endocrine disrupting chemicals have been detected primarily in pharmaceutical drugs, personal care products, food additives, and food containers. Exposure to endocrine-disrupting chemicals (EDCs) has been associated with a high incidence and prevalence of many endocrine-related disorders in humans. Nevertheless, further evidence is needed to establish a correlation between exposure to EDC and human disorders. Conventional detection of EDCs is based on chemical structure and concentration sample analysis. However, substantial evidence has emerged, suggesting that cell exposure to EDCs leads to epigenetic changes, independently of its chemical structure with non-monotonic low-dose responses. Consequently, a paradigm shift in toxicology assessment of EDCs is proposed based on a comprehensive review of analytical techniques used to evaluate the epigenetic effects. Fundamental insights reported elsewhere are compared in order to establish DNA methylation analysis as a viable method for assessing endocrine disruptors beyond the conventional study approach of chemical structure and concentration analysis.
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Affiliation(s)
- Natalia Tapia-Orozco
- Departamento de Alimentos y Biotecnología, Facultad de Química, Universidad Nacional Autónoma de México, Circuito Escolar s/n Ciudad Universitaria, Distrito Federal, Mexico.
| | - Gerardo Santiago-Toledo
- Department of Biochemical Engineering, University College London, Torrington Place, London WC1E 7JE, UK; Abraxas Biolabs SAPI de CV, Donato Guerra 9, Álvaro Obregón, Distrito Federal, Mexico.
| | - Valeria Barrón
- Unidad de Medicina Genómica, Hospital General de México, Dr Balmis 148, Distrito Federal, Mexico.
| | | | | | - Roeb García-Arrazola
- Departamento de Alimentos y Biotecnología, Facultad de Química, Universidad Nacional Autónoma de México, Circuito Escolar s/n Ciudad Universitaria, Distrito Federal, Mexico.
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Endocrine Disrupting Chemicals and Endometrial Cancer: An Overview of Recent Laboratory Evidence and Epidemiological Studies. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2017; 14:ijerph14030334. [PMID: 28327540 PMCID: PMC5369169 DOI: 10.3390/ijerph14030334] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/01/2017] [Revised: 02/13/2017] [Accepted: 02/22/2017] [Indexed: 01/10/2023]
Abstract
Background: Although exposure to endocrine disruptor compounds (EDCs) has been suggested as a contributing factor to a range of women's health disorders including infertility, polycystic ovaries and the early onset of puberty, considerable challenges remain in attributing cause and effect on gynaecological cancer. Until recently, there were relatively few epidemiological studies examining the relationship between EDCs and endometrial cancer, however, in the last years the number of these studies has increased. Methods: A systematic MEDLINE (PubMed) search was performed and relevant articles published in the last 23 years (from 1992 to 2016) were selected. Results: Human studies and animal experiments are confirming a carcinogenic effect due to the EDC exposure and its carcinogenesis process result to be complex, multifactorial and long standing, thus, it is extremely difficult to obtain the epidemiological proof of a carcinogenic effect of EDCs for the high number of confusing factors. Conclusions: The carcinogenic effects of endocrine disruptors are plausible, although additional studies are needed to clarify their mechanisms and responsible entities. Neverthless, to reduce endocrine disruptors (ED) exposure is mandatory to implement necessary measures to limit exposure, particularly during those periods of life most vulnerable to the impact of oncogenic environmental causes, such as embryonic period and puberty.
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Eldakroory SA, Morsi DAE, Abdel-Rahman RH, Roshdy S, Gouida MS, Khashaba EO. Correlation between toxic organochlorine pesticides and breast cancer. Hum Exp Toxicol 2017; 36:1326-1334. [DOI: 10.1177/0960327116685887] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Organochlorines (OCs) are common environmental pollutants that have been linked to cancer. This work aims to assess the role of OCs as a risk factor for breast cancer and to evaluate the cellular changes induced by exposure to such environmental contaminants. The study included 70 cancer patients subjected to thorough history taking and routine investigations. Samples from tumor and normal adjacent tissue were taken to measure OCs’ levels and to perform molecular analysis (some oncogenic and apoptotic markers) by flow cytometry. There were significantly higher concentrations of methoxychlor, dichloro-diphenyl-trichloroethane (DDT), hexa-chlorobenzene (HCB), and chlordane in tumor tissue samples compared to the surrounding normal tissue. There was a positive statistically significant correlation between G2m and dichloro-diphenyl-dichloroethane, DDT, and methoxychlor. There was also a negative correlation between propidium iodide (PI) and heptachlor as well as between PI, B-cell lymphoma 2, and methoxychlor. Annexin showed a negative correlation with HCB and methoxychlor. In conclusion, the higher level of organochlorine pesticides in the tissue specimens of breast cancer and the resultant molecular dysfunction highlight a possible association. Further research is warranted to elucidate the other possible mechanisms involved in the process of carcinogenesis.
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Affiliation(s)
- SA Eldakroory
- Forensic Medicine and Clinical Toxicology Department, Faculty of Medicine, Mansoura University, Egypt
| | - DA El Morsi
- Forensic Medicine and Clinical Toxicology Department, Faculty of Medicine, Mansoura University, Egypt
| | - RH Abdel-Rahman
- Forensic Medicine and Clinical Toxicology Department, Faculty of Medicine, Mansoura University, Egypt
| | - S Roshdy
- Surgical Oncology, Oncology Centre, Mansoura University, Faculty of Medicine, Egypt
| | - MS Gouida
- Molecular Immunology, Head of Flow cytometry and Genetics Units, Mansoura University Children Hospital, Egypt
| | - EO Khashaba
- Occupational Medicine and Industrial Health, Public Health and Community Medicine Department, Faculty of Medicine, Mansoura University, Egypt
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Bellingham M, Fowler PA, MacDonald ES, Mandon‐Pepin B, Cotinot C, Rhind S, Sharpe RM, Evans NP. Timing of Maternal Exposure and Foetal Sex Determine the Effects of Low-level Chemical Mixture Exposure on the Foetal Neuroendocrine System in Sheep. J Neuroendocrinol 2016; 28:10.1111/jne.12444. [PMID: 27870155 PMCID: PMC5621486 DOI: 10.1111/jne.12444] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Revised: 10/21/2016] [Accepted: 11/01/2016] [Indexed: 01/09/2023]
Abstract
We have shown that continuous maternal exposure to the complex mixture of environmental chemicals (ECs) found in human biosolids (sewage sludge), disrupts mRNA expression of genes crucial for development and long-term regulation of hypothalamic-pituitary gonadal (HPG) function in sheep. The present study investigated whether exposure to ECs only during preconceptional period or only during pregnancy perturbed key regulatory genes within the hypothalamus and pituitary gland and whether these effects were different from chronic (life-long) exposure to biosolid ECs. The findings demonstrate that the timing and duration of maternal EC exposure influences the subsequent effects on the foetal neuroendocrine system in a sex-specific manner. Maternal exposure prior to conception, or during pregnancy only, altered the expression of key foetal neuroendocrine regulatory systems such as gonadotrophin-releasing hormone and kisspeptin to a greater extent than when maternal exposure was 'life-long'. Furthermore, hypothalamic gene expression was affected to a greater extent in males than in females and, following EC exposure, male foetuses expressed more 'female-like' mRNA levels for some key neuroendocrine genes. This is the first study to show that 'real-life' maternal exposure to low levels of a complex cocktail of chemicals prior to conception can subsequently affect the developing foetal neuroendocrine system. These findings demonstrate that the developing neuroendocrine system is sensitive to EC mixtures in a sex-dimorphic manner likely to predispose to reproductive dysfunction in later life.
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Affiliation(s)
- M. Bellingham
- Institute of BiodiversityAnimal Health and Comparative MedicineUniversity of GlasgowGlasgowUK
| | - P. A. Fowler
- Division of Applied MedicineCentre for Reproductive Endocrinology and MedicineInstitute of Medical SciencesUniversity of AberdeenAberdeenUK
| | - E. S. MacDonald
- Institute of BiodiversityAnimal Health and Comparative MedicineUniversity of GlasgowGlasgowUK
| | | | - C. Cotinot
- UMR BDRUniversite Paris SaclayParisFrance
| | - S. Rhind
- James Hutton InstituteAberdeenUK
| | - R. M. Sharpe
- MRC Centre for Reproductive HealthUniversity of EdinburghEdinburghUK
| | - N. P. Evans
- Institute of BiodiversityAnimal Health and Comparative MedicineUniversity of GlasgowGlasgowUK
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48
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Mouly TA, Toms LML. Breast cancer and persistent organic pollutants (excluding DDT): a systematic literature review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:22385-22407. [PMID: 27628920 DOI: 10.1007/s11356-016-7577-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Accepted: 09/01/2016] [Indexed: 05/20/2023]
Abstract
Persistent organic pollutants (POPs) are a group of heterogeneous compounds of both natural and anthropogenic origin with highly persistent and bioaccumulative properties. They cause a range of adverse effects to human health and the environment around the world. There is growing concern that POPs may increase breast cancer risk due to their xenoestrogenic properties. The aim of this systematic literature review is to summarize and integrate the risks of breast cancer following environmental exposure to POPs (other than DDT) from primary epidemiological studies published between 2006 and 2015. After searching various databases, 14 case-control studies and one cohort study were included. Evidence of an association between increased breast cancer risk and environmental exposure to these chemicals is inconsistent and inadequate to conclude with certainty. However, most of the studies have examined exposure to the pollutants after diagnosis of breast cancer, overlooking exposure during critical windows of vulnerability. They have also largely focused on individual chemicals but ignored the combined effects of different chemicals. Therefore, major data gaps remain in examining exposure during critical windows of vulnerability and assessing combined effects of multiple chemicals. Development of better exposure assessment methods addressing these gaps is required for future research.
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Affiliation(s)
- Tafzila Akter Mouly
- School of Public Health and Social Work, Faculty of Health, Queensland University of Technology (QUT), Victoria Park Rd, Kelvin Grove, Brisbane, QLD 4059, Australia
| | - Leisa-Maree Leontjew Toms
- School of Public Health and Social Work, Faculty of Health, Queensland University of Technology (QUT), Victoria Park Rd, Kelvin Grove, Brisbane, QLD 4059, Australia.
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia.
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49
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Arrebola JP, Fernández-Rodríguez M, Artacho-Cordón F, Garde C, Perez-Carrascosa F, Linares I, Tovar I, González-Alzaga B, Expósito J, Torne P, Fernández MF, Olea N. Associations of persistent organic pollutants in serum and adipose tissue with breast cancer prognostic markers. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 566-567:41-49. [PMID: 27213669 DOI: 10.1016/j.scitotenv.2016.04.188] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Revised: 04/15/2016] [Accepted: 04/28/2016] [Indexed: 05/20/2023]
Abstract
This study aimed to evaluate associations between exposure to a group of persistent organic pollutants, measured in both adipose tissue and serum samples from breast cancer patients, and a set of tumor prognostic markers. The study population comprised 103 breast cancer patients recruited in Granada, Southern Spain. Data for tumor prognostic markers were retrieved from hospital clinical records and socio-demographic information was gathered by questionnaire. Persistent organic pollutants were quantified by gas chromatography with electron capture detection. Exposure levels were categorized in quartiles, and associations were evaluated using unconditional logistic regression. Adipose tissue HCB concentrations were associated positively with ER and PR expression (p-trends=0.044 and 0.005, respectively) and negatively with E-Cadherin and p53 expression (p-trends=0.012 and 0.027, respectively). PCB-180 adipose tissue concentrations were positively associated with HER2 expression (p-trend=0.036). Serum PCB-138 concentrations were positively associated with ER and PR expression (p-trends=0.052 and 0.042, respectively). The risk of p53 expression was higher among women in the lowest quartile of serum PCB-138 concentrations, but no significant trend was observed (p-trend=0.161). These findings indicate that human exposure to certain persistent organic pollutants might be related to breast cancer aggressiveness. We also highlight the influence on exposure assessment of the biological matrix selected, given that both serum and adipose tissue might yield relevant information on breast cancer prognosis.
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Affiliation(s)
- J P Arrebola
- Instituto de Investigación Biosanitaria (ibs. GRANADA), Hospitales Universitarios de Granada, Spain; Virgen de las Nieves University Hospital, Radiation Oncology Department, Oncology Unit, Granada, Spain; CIBER en Epidemiología y Salud Pública (CIBERESP), Spain.
| | - M Fernández-Rodríguez
- Instituto de Investigación Biosanitaria (ibs. GRANADA), Hospitales Universitarios de Granada, Spain; University of Granada, Radiology and Physical Medicine Department, Spain
| | - F Artacho-Cordón
- Instituto de Investigación Biosanitaria (ibs. GRANADA), Hospitales Universitarios de Granada, Spain; University of Granada, Radiology and Physical Medicine Department, Spain
| | - C Garde
- Instituto de Investigación Biosanitaria (ibs. GRANADA), Hospitales Universitarios de Granada, Spain
| | - F Perez-Carrascosa
- Instituto de Investigación Biosanitaria (ibs. GRANADA), Hospitales Universitarios de Granada, Spain; Virgen de las Nieves University Hospital, Radiation Oncology Department, Oncology Unit, Granada, Spain
| | - I Linares
- Instituto de Investigación Biosanitaria (ibs. GRANADA), Hospitales Universitarios de Granada, Spain; Virgen de las Nieves University Hospital, Radiation Oncology Department, Oncology Unit, Granada, Spain
| | - I Tovar
- Instituto de Investigación Biosanitaria (ibs. GRANADA), Hospitales Universitarios de Granada, Spain; Virgen de las Nieves University Hospital, Radiation Oncology Department, Oncology Unit, Granada, Spain
| | - B González-Alzaga
- Instituto de Investigación Biosanitaria (ibs. GRANADA), Hospitales Universitarios de Granada, Spain; Escuela Andaluza de Salud Pública, Granada, Spain
| | - J Expósito
- Instituto de Investigación Biosanitaria (ibs. GRANADA), Hospitales Universitarios de Granada, Spain; Virgen de las Nieves University Hospital, Radiation Oncology Department, Oncology Unit, Granada, Spain
| | - P Torne
- Instituto de Investigación Biosanitaria (ibs. GRANADA), Hospitales Universitarios de Granada, Spain
| | - M F Fernández
- Instituto de Investigación Biosanitaria (ibs. GRANADA), Hospitales Universitarios de Granada, Spain; CIBER en Epidemiología y Salud Pública (CIBERESP), Spain; University of Granada, Radiology and Physical Medicine Department, Spain
| | - N Olea
- Instituto de Investigación Biosanitaria (ibs. GRANADA), Hospitales Universitarios de Granada, Spain; CIBER en Epidemiología y Salud Pública (CIBERESP), Spain; University of Granada, Radiology and Physical Medicine Department, Spain
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50
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Roncati L, Termopoli V, Pusiol T. Negative Role of the Environmental Endocrine Disruptors in the Human Neurodevelopment. Front Neurol 2016; 7:143. [PMID: 27625632 PMCID: PMC5003883 DOI: 10.3389/fneur.2016.00143] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Accepted: 08/19/2016] [Indexed: 11/30/2022] Open
Abstract
The endocrine disruptors (EDs) are able to influence the endocrine system, mimicking or antagonizing hormonal molecules. They are bio-persistent for their degradation resistance in the environment. Our research group has investigated by gas chromatography–mass spectrometry (GC–MS) the EDs presence in 35 brain samples, coming from 27 cases of sudden intrauterine unexplained death syndrome (SIUDS) and 8 cases of sudden infant death syndrome (SIDS), collected by centralization in the last year (2015). More in detail, a mixture of 25 EDs has been subjected to analytical procedure, following standard protocols. Among the target analytes, some organochlorine pesticides, that is α-chlordane, γ-chlordane, heptachlor, p,p-DDE, p,p-DDT, and the two most commonly used organophosphorus pesticides (OPPs), chlorpyrifos and chlorfenvinfos, have been found in seven and three samples, respectively. The analytical procedure used to detect the presence of environmental EDs in cortex samples has been successfully implemented on SIUDS and SIDS victims. The environmental EDs have been found to be able to overcome the placental barrier, reaching also the basal ganglia assigned to the control of the vital functions. This finding, related to the OPPs bio-persistence, implies a conceptual redefinition of the fetal–placental and fetal blood–brain barriers: not real safety barriers but simply time-deferral mechanisms of absorption.
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Affiliation(s)
- Luca Roncati
- Provincial Health Care Services, Institute of Pathology, Santa Maria del Carmine Hospital, Rovereto, Trentino, Italy; Department of Diagnostic and Clinical Medicine and Public Health, University of Modena and Reggio Emilia, Modena, Modena, Italy
| | - Veronica Termopoli
- LC-MS Laboratory, Department of Earth Sciences, Life and Environment (DiSTeVA), University of Urbino , Urbino , Italy
| | - Teresa Pusiol
- Provincial Health Care Services, Institute of Pathology, Santa Maria del Carmine Hospital , Rovereto, Trentino , Italy
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