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Bujnakova Mlynarcikova A, Scsukova S. Evaluation of effects of bisphenol analogs AF, S, and F on viability, proliferation, production of selected cancer-related factors, and expression of selected transcripts in Caov-3 human ovarian epithelial cell line. Food Chem Toxicol 2024; 191:114889. [PMID: 39059691 DOI: 10.1016/j.fct.2024.114889] [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: 10/09/2023] [Revised: 07/17/2024] [Accepted: 07/22/2024] [Indexed: 07/28/2024]
Abstract
Bisphenol A (BPA) has been a substantial additive in plastics until the reports on its adverse effects have led to its restrictions and replacement. Monitoring studies document the increasing occurrence of bisphenol analogs, however, data on their effects and risks is still insufficient. Based on the indications that BPA might contribute to ovarian cancer pathogenesis, we examined effects of the analogs AF (BPAF), S (BPS) and F (BPF) (10-9-10-4 M) on the Caov-3 epithelial cancer cells, including the impact on cell viability, proliferation, oxidative stress, and production and expression of several factors and genes related to ovarian cancer. At environmentally relevant doses, bisphenols did not exert significant effects. At the highest concentration, BPAF caused varied alterations, including decreased cell viability and proliferation, caspase activation, down-regulation of PCNA and BIRC5, elevation of IL8, VEGFA, MYC, PTGS2 and ABCB1 expressions. Only BPA (10-4 M) increased IL-6, IL-8 and VEGFA output by the Caov-3 cells. Each bisphenol induced generation of reactive oxygen species and decreased superoxide dismutase activity at the highest concentration. Although the effects were observed only in the supraphysiological doses, the results indicate that certain bisphenol analogs might affect several ovarian cancer cell characteristics and merit further investigation.
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Affiliation(s)
- Alzbeta Bujnakova Mlynarcikova
- Institute of Experimental Endocrinology, Biomedical Research Center, Slovak Academy of Sciences, Dubravska Cesta 9, Bratislava, 84505, Slovakia.
| | - Sona Scsukova
- Institute of Experimental Endocrinology, Biomedical Research Center, Slovak Academy of Sciences, Dubravska Cesta 9, Bratislava, 84505, Slovakia
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Cui W, Meng J, Wang S, Hu Z, Liu G, Zhan X. 17β-estradiol (E2) removal in anode-electrodialysis (anode-ED) during nutrient recovery from pig manure digestate. JOURNAL OF HAZARDOUS MATERIALS 2024; 462:132754. [PMID: 37839370 DOI: 10.1016/j.jhazmat.2023.132754] [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: 06/09/2023] [Revised: 09/21/2023] [Accepted: 10/09/2023] [Indexed: 10/17/2023]
Abstract
Nutrient recovery from anaerobic digestate through electrodialysis technology (ED) has been investigated and shown high promise, but the removal of 17β-estradiol (E2), which is a natural estrogen and widely found in manure digestate, is not clear. This study examined the mechanism of membrane adsorption and anodic oxidation of E2 during recovering nutrient from manure digestate, and further investigated the performance of Anode-ED in E2 removal. The results showed that the removal of E2 in conventional ED was primarily attributed to membrane adsorption, resulting in no detectable E2 in the product solution. The adsorption capacity of the anion exchange membrane for E2 was significantly higher compared to that of the cation exchange membrane. During Anode-ED operation, E2 was efficiently removed by electrochemical oxidation, in which the chlorination played a primary role. Moreover, the oxidation intermediates of E2 were further removed after 40 min. Even though the carbonate, volatile fatty acid (VFA), and humic acid in the real wastewater have a negative impact on E2 oxidation, the E2 was completely removed from digestate during nutrient recovery in the anode-ED. This study indicates that anode-ED is a promising technology for the removal of E2 during nutrient recovery from digestate.
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Affiliation(s)
- Wanjun Cui
- Civil Engineering, College of Science and Engineering, University of Galway, Ireland; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-sen University, China
| | - Jizhong Meng
- Civil Engineering, College of Science and Engineering, University of Galway, Ireland; Ryan Institute, University of Galway, Ireland; SFI MaREI Research Centre, University of Galway, Ireland.
| | - Shun Wang
- Civil Engineering, College of Science and Engineering, University of Galway, Ireland; Ryan Institute, University of Galway, Ireland; SFI MaREI Research Centre, University of Galway, Ireland
| | - Zhenhu Hu
- Department of Municipal Engineering, School of Civil Engineering, Hefei University of Technology, China
| | - Guangli Liu
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-sen University, China
| | - Xinmin Zhan
- Civil Engineering, College of Science and Engineering, University of Galway, Ireland; Ryan Institute, University of Galway, Ireland; SFI MaREI Research Centre, University of Galway, Ireland.
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Kay JE, Brody JG, Schwarzman M, Rudel RA. Application of the Key Characteristics Framework to Identify Potential Breast Carcinogens Using Publicly Available in Vivo, in Vitro, and in Silico Data. ENVIRONMENTAL HEALTH PERSPECTIVES 2024; 132:17002. [PMID: 38197648 PMCID: PMC10777819 DOI: 10.1289/ehp13233] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 11/27/2023] [Accepted: 12/04/2023] [Indexed: 01/11/2024]
Abstract
BACKGROUND Chemicals that induce mammary tumors in rodents or activate estrogen or progesterone signaling are likely to increase breast cancer (BC) risk. Identifying chemicals with these activities can prompt steps to protect human health. OBJECTIVES We compiled data on rodent tumors, endocrine activity, and genotoxicity to assess the key characteristics (KCs) of rodent mammary carcinogens (MCs), and to identify other chemicals that exhibit these effects and may therefore increase BC risk. METHODS Using authoritative databases, including International Agency for Research on Cancer (IARC) Monographs and the US Environmental Protection's (EPA) ToxCast, we selected chemicals that induce mammary tumors in rodents, stimulate estradiol or progesterone synthesis, or activate the estrogen receptor (ER) in vitro. We classified these chemicals by their genotoxicity and strength of endocrine activity and calculated the overrepresentation (enrichment) of these KCs among MCs. Finally, we evaluated whether these KCs predict whether a chemical is likely to induce mammary tumors. RESULTS We identified 279 MCs and an additional 642 chemicals that stimulate estrogen or progesterone signaling. MCs were significantly enriched for steroidogenicity, ER agonism, and genotoxicity, supporting the use of these KCs to predict whether a chemical is likely to induce rodent mammary tumors and, by inference, increase BC risk. More MCs were steroidogens than ER agonists, and many increased both estradiol and progesterone. Enrichment among MCs was greater for strong endocrine activity vs. weak or inactive, with a significant trend. DISCUSSION We identified hundreds of compounds that have biological activities that could increase BC risk and demonstrated that these activities are enriched among MCs. We argue that many of these should not be considered low hazard without investigating their ability to affect the breast, and chemicals with the strongest evidence can be targeted for exposure reduction. We describe ways to strengthen hazard identification, including improved assessments for mammary effects, developing assays for more KCs, and more comprehensive chemical testing. https://doi.org/10.1289/EHP13233.
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Affiliation(s)
| | | | - Megan Schwarzman
- School of Public Health, University of California, Berkeley, Berkeley, California, USA
- Family and Community Medicine, University of California, San Francisco, San Francisco, California, USA
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Kościelecka K, Kuć A, Kubik-Machura D, Męcik-Kronenberg T, Włodarek J, Radko L. Endocrine Effect of Some Mycotoxins on Humans: A Clinical Review of the Ways to Mitigate the Action of Mycotoxins. Toxins (Basel) 2023; 15:515. [PMID: 37755941 PMCID: PMC10535190 DOI: 10.3390/toxins15090515] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 08/10/2023] [Accepted: 08/22/2023] [Indexed: 09/28/2023] Open
Abstract
Fungi such as Aspergillus spp. and Fusarium spp., which are commonly found in the environment, pose a serious global health problem. This study aims to present the results of epidemiological studies, including clinical cases, on the relationship between human exposure to some mycotoxins, especially zearalenone and aflatoxin, and the occurrence of reproductive disorders. In addition, examples of methods to reduce human exposure to mycotoxins are presented. In March 2023, various databases (PubMed, Google Scholar, EMBASE and Web of Science) were systematically searched using Google Chrome to identify studies evaluating the association between exposure to mycotoxins and the occurrence of complications related to impaired fertility or cancer incidence. The analysed data indicate that exposure to the evaluated mycotoxins is widespread and correlates strongly with precocious puberty, reduced fertility and increased cancer incidence in women and men worldwide. There is evidence to suggest that exposure to the Aspergillus mycotoxin aflatoxin (AF) during pregnancy can impair intrauterine foetal growth, promote neonatal jaundice and cause perinatal death and preterm birth. In contrast, exposure to the Fusarium mycotoxin zearalenone (ZEA) leads to precocious sexual development, infertility, the development of malformations and the development of breast cancer. Unfortunately, the development of methods (biological, chemical or physical) to completely eliminate exposure to mycotoxins has limited practical application. The threat to human health from mycotoxins is real and further research is needed to improve our knowledge and specific public health interventions.
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Affiliation(s)
- Klaudia Kościelecka
- Department of Pathomorphology, Faculty of Medical Sciences in Zabrze, 3 Maja St. 13, 41-800 Zabrze, Poland; (K.K.); (A.K.); (D.K.-M.)
| | - Aleksandra Kuć
- Department of Pathomorphology, Faculty of Medical Sciences in Zabrze, 3 Maja St. 13, 41-800 Zabrze, Poland; (K.K.); (A.K.); (D.K.-M.)
| | - Daria Kubik-Machura
- Department of Pathomorphology, Faculty of Medical Sciences in Zabrze, 3 Maja St. 13, 41-800 Zabrze, Poland; (K.K.); (A.K.); (D.K.-M.)
| | - Tomasz Męcik-Kronenberg
- Department of Pathomorphology, Faculty of Medical Sciences in Zabrze, 3 Maja St. 13, 41-800 Zabrze, Poland; (K.K.); (A.K.); (D.K.-M.)
| | - Jan Włodarek
- Department of Preclinical Sciences and Infectious Diseases, Faculty of Veterinary Medicine and Animal Sciences, Poznan University of Life Sciences, Wolynska St. 35, 60-637 Poznan, Poland;
| | - Lidia Radko
- Department of Preclinical Sciences and Infectious Diseases, Faculty of Veterinary Medicine and Animal Sciences, Poznan University of Life Sciences, Wolynska St. 35, 60-637 Poznan, Poland;
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Ahn C, Jeung EB. Endocrine-Disrupting Chemicals and Disease Endpoints. Int J Mol Sci 2023; 24:ijms24065342. [PMID: 36982431 PMCID: PMC10049097 DOI: 10.3390/ijms24065342] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 02/24/2023] [Indexed: 03/18/2023] Open
Abstract
Endocrine-disrupting chemicals (EDCs) have significant impacts on biological systems, and have been shown to interfere with physiological systems, especially by disrupting the hormone balance. During the last few decades, EDCs have been shown to affect reproductive, neurological, and metabolic development and function and even stimulate tumor growth. EDC exposure during development can disrupt normal development patterns and alter susceptibility to disease. Many chemicals have endocrine-disrupting properties, including bisphenol A, organochlorines, polybrominated flame retardants, alkylphenols, and phthalates. These compounds have gradually been elucidated as risk factors for many diseases, such as reproductive, neural, and metabolic diseases and cancers. Endocrine disruption has been spread to wildlife and species that are connected to the food chains. Dietary uptake represents an important source of EDC exposure. Although EDCs represent a significant public health concern, the relationship and specific mechanism between EDCs and diseases remain unclear. This review focuses on the disease-EDC relationship and the disease endpoints associated with endocrine disruption for a better understanding of the relationship between EDCs-disease and elucidates the development of new prevention/treatment opportunities and screening methods.
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Affiliation(s)
- Changhwan Ahn
- Laboratory of Veterinary Physiology, College of Veterinary Medicine, Jeju National University, Jeju 63243, Republic of Korea
| | - Eui-Bae Jeung
- Laboratory of Veterinary Biochemistry and Molecular Biology, College of Veterinary Medicine, Chungbuk National University, Cheongju 28644, Republic of Korea
- Correspondence: ; Tel.: +82-043-261-2397; Fax: +82-43-267-3150
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Muacevic A, Adler JR, Alruwaili AG, Alqunayfith NF, Alaried BM, Albader RA, Telb ME. Awareness Regarding Sex Hormone Disruptors in Everyday Products Among Females of Reproductive Age in Al-Jouf, the Kingdom of Saudi Arabia. Cureus 2023; 15:e34255. [PMID: 36855478 PMCID: PMC9968392 DOI: 10.7759/cureus.34255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/26/2023] [Indexed: 01/29/2023] Open
Abstract
Background and objective Endocrine-disrupting chemicals (EDCs) are natural or synthetic molecules that can alter and affect the operations of the hormonal system of an organism. These compounds include plastic consumer products and food containers such as phytoestrogen, which is also naturally present in food. EDCs can be found in the cord blood and maternal blood of pregnant women, as well as colostrum. Hence, they may affect not only the mother but also the offspring. In this study, we aimed to evaluate the awareness among females of reproductive age regarding the nature, source, as well as physiological and psychological burden associated with sex hormones disruptors. Methods A descriptive cross-sectional study was conducted among females between the age of 15-45 years in the Al-Jouf region, Saudi Arabia. A self-administrated questionnaire was used as the data collection tool; it consisted of multiple-choice questions to obtain information on the awareness among the females. In this study, females were classified into those with good knowledge and those with poor knowledge based on their level of knowledge by using a scoring system with a total score of 12. IBM SPSS Statistics version 24 (IBM Corp., Armonk, NY) was used to analyze the collected data. Results The study included 491 females; 6.6% of them had been using soya-containing products for a long time, and 32.5% reported using oatmeal for a long time. The majority (86.2%) did not use any other hormonal therapy. There were significant differences in the knowledge about sex hormone disruptors among the participants, and women with poorer knowledge about sex hormone disruptors were significantly less likely to report the long-time usage of soya-containing food when compared to women with greater knowledge (2.2% vs. 4.2%, p<0.001). The results showed that women with poorer knowledge were also significantly less likely to report the usage of hormonal therapies when compared to women with greater knowledge (6.7% vs. 7.2%, p<0.001), indicating that the usage of these chemicals is higher in women with greater knowledge although they are aware of their effects. Conclusion The study showed that females had good knowledge about the nature and usage of EDCs but poor knowledge about their impact. The knowledge of females was associated with their behavior regarding the usage of such products.
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Murphy KM, Watkins MM, Finger JW, Kelley MD, Elsey RM, Warner DA, Mendonça MT. Xenobiotic estradiol-17ß alters gut microbiota of hatchling American alligators (Alligator mississippiensis). Environ Microbiol 2022; 24:6336-6347. [PMID: 36164972 DOI: 10.1111/1462-2920.16222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 09/23/2022] [Indexed: 01/12/2023]
Abstract
Environmental oestrogens pose serious concerns for ecosystems through their effects on organismal survival and physiology. The gut microbiome is highly vulnerable to environmental influence, yet the effects of oestrogens on gut homeostasis are unknown because they are poorly studied in wildlife populations. To determine the influence of environmental oestrogens (i.e., xenoestrogens) on the diversity and abundance of gut microbiota, we randomly assigned 23 hatchling American alligators (Alligator mississippiensis) to three ecologically relevant treatments (control, low, and high oestrogen concentrations) for 10 weeks. We predicted that xenoestrogen exposure would decrease microbial diversity and abundance within the digestive tract and that this effect would be dose-dependent. Microbial samples were collected following diet treatments and microbial diversity was determined using 16S rRNA gene-sequencing. Individuals in oestrogen-treatment groups had decreased microbial diversity, but a greater relative abundance of operational taxonomic units than those in the control group. In addition, this effect was dose-dependent; as individuals were exposed to more oestrogen, their microbiome became less diverse, less rich and less even. Findings from this study suggest that oestrogen contamination can influence wildlife populations at the internal microbial-level, which may lead to future deleterious health effects.
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Affiliation(s)
- Kaitlyn M Murphy
- Department of Biological Sciences, Auburn University, Auburn, Alabama, USA
| | - Madison M Watkins
- Department of Biological Sciences, Auburn University, Auburn, Alabama, USA
| | - John W Finger
- Department of Biological Sciences, The University of Alabama, Tuscaloosa, Alabama, USA
| | - Meghan D Kelley
- Department of Biological Sciences, The University of Alabama, Tuscaloosa, Alabama, USA
| | - Ruth M Elsey
- Louisiana Department of Wildlife and Fisheries, Grand Chenier, Baton Rouge, Louisiana, USA
| | - Daniel A Warner
- Department of Biological Sciences, Auburn University, Auburn, Alabama, USA
| | - Mary T Mendonça
- Department of Biological Sciences, Auburn University, Auburn, Alabama, USA
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Cheminformatics analysis of chemicals that increase estrogen and progesterone synthesis for a breast cancer hazard assessment. Sci Rep 2022; 12:20647. [PMID: 36450809 PMCID: PMC9712655 DOI: 10.1038/s41598-022-24889-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 11/22/2022] [Indexed: 12/03/2022] Open
Abstract
Factors that increase estrogen or progesterone (P4) action are well-established as increasing breast cancer risk, and many first-line treatments to prevent breast cancer recurrence work by blocking estrogen synthesis or action. In previous work, using data from an in vitro steroidogenesis assay developed for the U.S. Environmental Protection Agency (EPA) ToxCast program, we identified 182 chemicals that increased estradiol (E2up) and 185 that increased progesterone (P4up) in human H295R adrenocortical carcinoma cells, an OECD validated assay for steroidogenesis. Chemicals known to induce mammary effects in vivo were very likely to increase E2 or P4 synthesis, further supporting the importance of these pathways for breast cancer. To identify additional chemical exposures that may increase breast cancer risk through E2 or P4 steroidogenesis, we developed a cheminformatics approach to identify structural features associated with these activities and to predict other E2 or P4 steroidogens from their chemical structures. First, we used molecular descriptors and physicochemical properties to cluster the 2,012 chemicals screened in the steroidogenesis assay using a self-organizing map (SOM). Structural features such as triazine, phenol, or more broadly benzene ramified with halide, amine or alcohol, are enriched for E2 or P4up chemicals. Among E2up chemicals, phenol and benzenone are found as significant substructures, along with nitrogen-containing biphenyls. For P4up chemicals, phenol and complex aromatic systems ramified with oxygen-based groups such as flavone or phenolphthalein are significant substructures. Chemicals that are active for both E2up and P4up are enriched with substructures such as dihydroxy phosphanedithione or are small chemicals that contain one benzene ramified with chlorine, alcohol, methyl or primary amine. These results are confirmed with a chemotype ToxPrint analysis. Then, we used machine learning and artificial intelligence algorithms to develop and validate predictive classification QSAR models for E2up and P4up chemicals. These models gave reasonable external prediction performances (balanced accuracy ~ 0.8 and Matthews Coefficient Correlation ~ 0.5) on an external validation. The QSAR models were enriched by adding a confidence score that considers the chemical applicability domain and a ToxPrint assessment of the chemical. This profiling and these models may be useful to direct future testing and risk assessments for chemicals related to breast cancer and other hormonally-mediated outcomes.
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Cosentino M, Marino F. Understanding the Pharmacology of COVID-19 mRNA Vaccines: Playing Dice with the Spike? Int J Mol Sci 2022; 23:10881. [PMID: 36142792 PMCID: PMC9502275 DOI: 10.3390/ijms231810881] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Revised: 09/11/2022] [Accepted: 09/13/2022] [Indexed: 11/16/2022] Open
Abstract
Coronavirus disease-19 (COVID-19) mRNA vaccines are the mainstays of mass vaccination campaigns in most Western countries. However, the emergency conditions in which their development took place made it impossible to fully characterize their effects and mechanism of action. Here, we summarize and discuss available evidence indicating that COVID-19 mRNA vaccines better reflect pharmaceutical drugs than conventional vaccines, as they do not contain antigens but an active SARS-CoV-2 S protein mRNA, representing at the same time an active principle and a prodrug, which upon intracellular translation results in the endogenous production of the SARS-CoV-2 S protein. Both vaccine-derived SARS-CoV-2 S protein mRNA and the resulting S protein exhibit a complex pharmacology and undergo systemic disposition. Defining COVID-19 mRNA vaccines as pharmaceutical drugs has straightforward implications for their pharmacodynamic, pharmacokinetic, clinical and post-marketing safety assessment. Only an accurate characterization of COVID-19 mRNA vaccines as pharmaceutical drugs will guarantee a safe, rational and individualized use of these products.
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Affiliation(s)
- Marco Cosentino
- Center for Research in Medical Pharmacology, University of Insubria, 21100 Varese, Italy
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Speiser E, Pinto Zipp G, DeLuca DA, Paula Cupertino A, Arana-Chicas E, Gourna Paleoudis E, Bethea TN, Kligler B, Cartujano-Barrera F. Environmental Health Needs Among Latinas in Cleaning Occupations: A Mixed Methods Approach. ENVIRONMENTAL HEALTH INSIGHTS 2022; 16:11786302221100045. [PMID: 35614881 PMCID: PMC9125105 DOI: 10.1177/11786302221100045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Accepted: 04/14/2022] [Indexed: 06/15/2023]
Abstract
In the U.S., approximately half of maids and housekeeping cleaners are Latino or Hispanic, while the vast majority are women (88.3%). This largely immigrant, underserved workforce faces complex factors, which may contribute to adverse health outcomes. To understand relevant barriers and challenges, this mixed-methods study explored the environmental health needs of a heterogeneous group of Latinas in New Jersey (NJ) who clean occupationally, and consisted of 3 focus groups (N = 15) with a cross-sectional survey (N = 9), both conducted in Spanish. Participants were recruited from community-based English as a Second Language classes in Hackensack, NJ. Analysis of focus group audio recordings included descriptive and in vivo coding followed by inductive coding to explore thematic analysis. The survey responses were evaluated using descriptive statistics. As per the survey results, the environmental health needs of this population include sore muscles, back problems, asthma, other respiratory issues, migraine or headache, and skin issues (rash, etc.). In the group discussions, the roles of genetics, food, and chemical exposures in cancer etiology were of great interest and a variety of opinions on the topic were explored. Both the focus group discussions and survey responses suggested that this population also faces barriers including lack of training, chemical exposures and inadequate personal protective equipment (PPE). These barriers are compounded by daily environmental exposures from personal home cleaning practices. The development of culturally- and linguistically-appropriate interventions are warranted to better protect the health of essential occupational cleaners who keep homes, businesses and schools clean.
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Affiliation(s)
- Erin Speiser
- The Deirdre Imus Environmental Health Center®, Hackensack Meridian Health, Hackensack University Medical Center, Hackensack, NJ, USA
| | - Genevieve Pinto Zipp
- Department of Interprofessional Health Sciences & Health Administration, School of Health and Medical Sciences, Seton Hall University, Nutley, NJ, USA
| | - Deborah A DeLuca
- Department of Interprofessional Health Sciences & Health Administration, School of Health and Medical Sciences, Seton Hall University, Nutley, NJ, USA
| | - Ana Paula Cupertino
- James P. Wilmot Cancer Institute, University of Rochester Medical Center, Rochester, NY, USA
| | - Evelyn Arana-Chicas
- James P. Wilmot Cancer Institute, University of Rochester Medical Center, Rochester, NY, USA
| | - Elli Gourna Paleoudis
- Office of Research Administration, Hackensack Meridian Health, Department of Medical Sciences, Hackensack Meridian School of Medicine, Nutley, NJ, USA
| | - Traci N Bethea
- Office of Minority Health and Health Disparities Research and Cancer Prevention and Control Program, Georgetown Lombardi Comprehensive Cancer Center, Washington, DC, USA
| | - Benjamin Kligler
- The Deirdre Imus Environmental Health Center®, Hackensack Meridian Health, Hackensack University Medical Center, Hackensack, NJ, USA
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Lee DH, Chung SW, Lee JH, Kim HY, Chung GE, Kim MS, Yang BR, Nam JY, Lee YB, Kim YJ, Yoon JH. Association of Chronic Hepatitis B Infection and Antiviral Treatment With the Development of the Extrahepatic Malignancies: A Nationwide Cohort Study. J Clin Oncol 2022; 40:3394-3405. [PMID: 35561284 DOI: 10.1200/jco.21.01285] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
PURPOSE Epidemiologic studies suggest that chronic hepatitis B (CHB) is a risk factor for various primary extrahepatic malignancies. Our aim was to evaluate the associations of CHB and nucleos(t)ide analog (NA) treatment with the risk of the development of extrahepatic malignancies. PATIENTS AND METHODS We conducted an 18-month landmark analysis using nationwide claims data from the National Health Insurance Service of South Korea. Patients newly diagnosed with CHB in 2012-2014 (n = 90,944) and matched-controls (n = 685,436) were included. Patients with CHB were further classified as the NA-treated (CHB+/NA+, n = 6,539) or the NA-untreated (CHB+/NA-, n = 84,405) group. Inverse probability of treatment weighting analysis was applied to balance the treatment groups. Time-varying Cox analysis was performed to evaluate time-varying effect of NA treatment. The primary outcome was the development of any primary extrahepatic malignancy. Development of intrahepatic malignancy and death were considered as competing events. RESULTS During the study period (median = 47.4 months), 30,413 patients (3.9%) developed any extrahepatic malignancy. The CHB+/NA- group had a higher overall risk of extrahepatic malignancy than the CHB+/NA+ group (adjusted subdistribution hazard ratio [aSHR] = 1.28; 95% CI, 1.12 to 1.45; P < .001) or controls (aSHR = 1.22; 95% CI, 1.18 to 1.26; P < .001). There was no difference in the risk of extrahepatic malignancy between the CHB+/NA+ group and the controls (CHB+/NA+ v control: aSHR = 0.96; 95% CI, 0.84 to 1.08; P = .48). In time-varying Cox analysis, the CHB+/NA- patients were associated with a higher risk of extrahepatic malignancy than the CHB+/NA+ patients (aSHR = 1.37; 95% CI, 1.23 to 1.52; P < .001). CONCLUSION Patients with CHB have an elevated risk of developing primary extrahepatic malignancy. Long-term NA treatment was associated with a lower risk of extrahepatic malignancy development among patients with CHB.
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Affiliation(s)
- Dong Hyeon Lee
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea.,Department of Internal Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul, South Korea
| | - Sung Won Chung
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Jeong-Hoon Lee
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Hwi Young Kim
- Department of Internal Medicine, Ewha Womans University Medical Center, Ewha Womans University College of Medicine, Seoul, South Korea
| | - Goh Eun Chung
- Department of Internal Medicine, Healthcare System Gangnam Center Seoul National University Hospital, Seoul, South Korea
| | - Mi-Sook Kim
- Medical Research Collaborating Center, Seoul National University Hospital, Seoul, South Korea
| | - Bo Ram Yang
- Medical Research Collaborating Center, Seoul National University Hospital, Seoul, South Korea.,College of Pharmacy, Chungnam National University, Daejeon, South Korea
| | - Joon Yeul Nam
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Yun Bin Lee
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Yoon Jun Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Jung-Hwan Yoon
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
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Katuwal S, Tapanainen J, Pukkala E. Multivariate analysis of independent roles of socioeconomic status, occupational physical activity, reproductive factors, and postmenopausal hormonal therapy in risk of breast cancer. Breast Cancer Res Treat 2022; 193:495-505. [PMID: 35366162 PMCID: PMC9090885 DOI: 10.1007/s10549-022-06571-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 03/12/2022] [Indexed: 11/24/2022]
Abstract
PURPOSE This case-control study assesses the independent roles of reproductive history, postmenopausal hormonal therapy (HT), socioeconomic status (SES), and occupational physical activity on the risk of breast cancer (BC). METHODS Odds ratios (OR) were estimated from conditional logistic multivariate regression model in a data set of 19,253 Finnish women diagnosed with BC between 1994 and 2013 and 96,265 age-matched population controls. RESULTS Both pre- and postmenopausal white-collar workers had significantly increased risk of ductal and lobular BC as compared to manual workers. Moderate occupational physical activity reduced risk of lobular BC by 14%. There was a transient increase in the risk of BC observed after each birth followed by a protective effect starting some years after the delivery. As the number of children increased, the short-term excess risk was lower and protective effect was observed earlier. Continuous estrogen-progestin therapy (EPT) significantly increased the risk of both ductal and lobular BC and the magnitude of risk was directly proportional to duration of use (OR for 5+ years of use 2.26, 95% confidence interval 2.12-2.42). Monthly EPT for 5+ years increased the risk (OR 1.32, 95% CI 1.20-1.45). Users of estradiol plus levonorgestrel intrauterine system devices showed ORs of 1.56 (95% CI 1.45-1.69) and 2.18 (95% CI 1.81-2.64) for ductal and lobular BC, respectively. CONCLUSION This study concludes that pregnancy has a dual effect on BC risk, with a transient increase in risk followed by a long-term protective effect. The SES and HT have a large effect on BC risk while occupational physical activity has only a small independent effect.
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Affiliation(s)
- Sushmita Katuwal
- Faculty of Social Sciences, Tampere University, Arvo Ylpön katu 34, 33520, Tampere, Finland.
| | - Juha Tapanainen
- Department of Obstetrics and Gynecology, University of Helsinki, Helsinki University Hospital, Helsinki, Finland.,Department of Obstetrics and Gynecology, PEDEGO Research Unit, Medical Research Center, Oulu University Hospital, University of Oulu, Oulu, Finland
| | - Eero Pukkala
- Faculty of Social Sciences, Tampere University, Arvo Ylpön katu 34, 33520, Tampere, Finland.,Finnish Cancer Registry, Institute for Statistical and Epidemiological Cancer Research, Helsinki, Finland
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13
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A Quality Control Mechanism of Splice Site Selection Abrogated under Stress and in Cancer. Cancers (Basel) 2022; 14:cancers14071750. [PMID: 35406522 PMCID: PMC8996931 DOI: 10.3390/cancers14071750] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 03/14/2022] [Accepted: 03/28/2022] [Indexed: 12/26/2022] Open
Abstract
Simple Summary Splicing and alternative splicing play a major role in regulating gene expression, and mis-regulation of splicing can lead to several diseases, including cancer. The aim of this review is to summarize the current knowledge of a quality control mechanism of splice site selection termed Suppression of Splicing (SOS), proposed to protect cells from splicing at the numerous intronic unused 5′ splice sites, and emphasize its relevance to cancer. This relevance stems from the finding that SOS is abrogated under stress and in cancer resulting in the expression of thousands of aberrant nonsense mRNAs that may be toxic to cells. These findings highlight the unexplored potential of such aberrant isoforms as novel targets for cancer diagnosis and therapies. Abstract Latent 5’ splice sites, highly abundant in human introns, are not normally used. This led to the proposal of a quality control mechanism, Suppression of Splicing (SOS), which protects cells from splicing at the numerous intronic latent sites, and whose activation can generate nonsense mRNAs. SOS was shown to be independent of Nonsense-Mediated mRNA Decay (NMD). Efforts to decipher the SOS mechanism revealed a pivotal role for initiator-tRNA, independent of protein translation. Recently, nucleolin (a multifunctional protein) was found to directly and specifically bind the initiator-tRNA in the nucleus and was shown to be a protein component of SOS, enabling an updated model of the SOS mechanism. Importantly, SOS is abrogated under stress and in cancer (e.g., in breast cancer cells and gliomas), generating thousands of nonsense mRNAs due to activation of latent splicing. The resulting affected human genes cover a variety of functional groups, including genes involved in cell proliferation and differentiation. Furthermore, in oligodendroglioma, the extent of activation of latent splicing increases with the severity of the cancer. Interesting examples are genes expressing aberrant nonsense mRNAs in both breast cancer and glioma, due to latent splicing activation. These findings highlight the unexplored potential of such aberrant isoforms as novel targets for cancer diagnosis and therapies.
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14
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Holder EX, Houghton SC, Sanchez SS, Eliassen AH, Qian J, Bertone-Johnson ER, Liu Z, Tworoger SS, Smith MT, Hankinson SE. Estrogenic activity and risk of invasive breast cancer among postmenopausal women in the Nurses' Health Study. Cancer Epidemiol Biomarkers Prev 2022; 31:831-838. [DOI: 10.1158/1055-9965.epi-21-1157] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 12/13/2021] [Accepted: 01/25/2022] [Indexed: 11/16/2022] Open
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15
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Maharjan CK, Mo J, Wang L, Kim MC, Wang S, Borcherding N, Vikas P, Zhang W. Natural and Synthetic Estrogens in Chronic Inflammation and Breast Cancer. Cancers (Basel) 2021; 14:cancers14010206. [PMID: 35008370 PMCID: PMC8744660 DOI: 10.3390/cancers14010206] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 12/17/2021] [Accepted: 12/19/2021] [Indexed: 12/17/2022] Open
Abstract
The oncogenic role of estrogen receptor (ER) signaling in breast cancer has long been established. Interaction of estrogen with estrogen receptor (ER) in the nucleus activates genomic pathways of estrogen signaling. In contrast, estrogen interaction with the cell membrane-bound G-protein-coupled estrogen receptor (GPER) activates the rapid receptor-mediated signaling transduction cascades. Aberrant estrogen signaling enhances mammary epithelial cell proliferation, survival, and angiogenesis, hence is an important step towards breast cancer initiation and progression. Meanwhile, a growing number of studies also provide evidence for estrogen's pro- or anti-inflammatory roles. As other articles in this issue cover classic ER and GPER signaling mediated by estrogen, this review will discuss the crucial mechanisms by which estrogen signaling influences chronic inflammation and how that is involved in breast cancer. Xenoestrogens acquired from plant diet or exposure to industrial products constantly interact with and alter innate estrogen signaling at various levels. As such, they can modulate chronic inflammation and breast cancer development. Natural xenoestrogens generally have anti-inflammatory properties, which is consistent with their chemoprotective role in breast cancer. In contrast, synthetic xenoestrogens are proinflammatory and carcinogenic compounds that can increase the risk of breast cancer. This article also highlights important xenoestrogens with a particular focus on their role in inflammation and breast cancer. Improved understanding of the complex relationship between estrogens, inflammation, and breast cancer will guide clinical research on agents that could advance breast cancer prevention and therapy.
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Affiliation(s)
- Chandra K. Maharjan
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, FL 32610, USA; (C.K.M.); (J.M.); (L.W.); (M.-C.K.)
| | - Jiao Mo
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, FL 32610, USA; (C.K.M.); (J.M.); (L.W.); (M.-C.K.)
| | - Lei Wang
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, FL 32610, USA; (C.K.M.); (J.M.); (L.W.); (M.-C.K.)
| | - Myung-Chul Kim
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, FL 32610, USA; (C.K.M.); (J.M.); (L.W.); (M.-C.K.)
| | - Sameul Wang
- Canyonoak Consulting LLC, San Diego, CA 92127, USA;
| | - Nicholas Borcherding
- Department of Pathology and Immunology, School of Medicine, Washington University, St. Louis, MO 63110, USA;
| | - Praveen Vikas
- Department of Internal Medicine, Carver College of Medicine, Iowa City, IA 52242, USA;
| | - Weizhou Zhang
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, FL 32610, USA; (C.K.M.); (J.M.); (L.W.); (M.-C.K.)
- Mechanism of Oncogenesis Program, University of Florida Health Cancer Center, University of Florida, Gainesville, FL 32610, USA
- Correspondence: to: ; Tel.: +1-352-273-6748
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16
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Donat-Vargas C, Guerrero-Zotano Á, Casas A, Baena-Cañada JM, Lope V, Antolín S, Garcia-Saénz JÁ, Bermejo B, Muñoz M, Ramos M, de Juan A, Jara Sánchez C, Sánchez-Rovira P, Antón A, Brunet J, Gavilá J, Salvador J, Arriola Arellano E, Bezares S, Fernández de Larrea-Baz N, Pérez-Gómez B, Martín M, Pollán M. Trajectories of alcohol consumption during life and the risk of developing breast cancer. Br J Cancer 2021; 125:1168-1176. [PMID: 34483338 PMCID: PMC8505448 DOI: 10.1038/s41416-021-01492-w] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 06/10/2021] [Accepted: 07/08/2021] [Indexed: 12/26/2022] Open
Abstract
Background Whether there are lifetime points of greater sensitivity to the deleterious effects of alcohol intake on the breasts remains inconclusive. Objective To compare the influence of distinctive trajectories of alcohol consumption throughout a woman’s life on development of breast cancer (BC). Methods 1278 confirmed invasive BC cases and matched (by age and residence) controls from the Epi-GEICAM study (Spain) were used. The novel group-based trajectory modelling was used to identify different alcohol consumption trajectories throughout women’s lifetime. Results Four alcohol trajectories were identified. The first comprised women (45%) with low alcohol consumption (<5 g/day) throughout their life. The second included those (33%) who gradually moved from a low alcohol consumption in adolescence to a moderate in adulthood (5 to <15 g/day), never having a high consumption; and oppositely, women in the third trajectory (16%) moved from moderate consumption in adolescence, to a lower consumption in adulthood. Women in the fourth (6%) moved from a moderate alcohol consumption in adolescence to the highest consumption in adulthood (≥15 g/day), never having a low alcohol consumption. Comparing with the first trajectory, the fourth doubled BC risk (OR 2.19; 95% CI 1.27, 3.77), followed by the third (OR 1.44; 0.96, 2.16) and ultimately by the second trajectory (OR 1.17; 0.86, 1.58). The magnitude of BC risk was greater in postmenopausal women, especially in those with underweight or normal weight. When alcohol consumption was independently examined at each life stage, ≥15 g/day of alcohol consumption in adolescence was strongly associated with BC risk followed by consumption in adulthood. Conclusions The greater the alcohol consumption accumulated throughout life, the greater the risk of BC, especially in postmenopausal women. Alcohol consumption during adolescence may particularly influence BC risk.
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Affiliation(s)
- Carolina Donat-Vargas
- IMDEA-Food Institute, CEI UAM+CSIC, Madrid, Spain.,Department of Preventive Medicine and Public Health, School of Medicine, Universidad Autónoma de Madrid-IdiPaz, CIBERESP (CIBER of Epidemiology and Public Health), Madrid, Spain.,Unit of Cardiovascular and Nutritional Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | | | - Ana Casas
- Medical Oncology Unit, Hospital Virgen del Rocío, Sevilla, Spain
| | - José Manuel Baena-Cañada
- Medical Oncology Unit, Hospital Puerta del Mar, Cádiz, Spain.,Instituto de Investigación en Biomedicina de Cádiz (INiBICA), Cádiz, Spain
| | - Virginia Lope
- National Center for Epidemiology, Carlos III Institute of Health, Madrid, Spain.,Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), Institute of Health Carlos III, Madrid, Spain
| | - Silvia Antolín
- Medical Oncology Unit, Complejo Hospitalario Universitario, A Coruña, Spain
| | | | - Begoña Bermejo
- Medical Oncology Unit, Hospital Clínico, Valencia, Spain
| | - Montserrat Muñoz
- Medical Oncology Unit, Hospital Clinic i Provincial, Barcelona, Spain.,Translational Genomics and Targeted Therapeutics, Institut d'Investigacions Biomèdiques Pi i Sunyer-IDIBAPS, Barcelona, Spain
| | - Manuel Ramos
- Medical Oncology Unit, Centro Oncológico de Galicia, A Coruña, Spain
| | - Ana de Juan
- Medical Oncology Unit, Hospital Marqués de Valdecilla, Santander, Spain
| | - Carlos Jara Sánchez
- Medical Oncology Unit/Departamento Especialidades Médicas, Hospital Universitario Fundación Alcorcón/Universidad Rey Juan Carlos, Madrid, Spain
| | | | - Antonio Antón
- Medical Oncology Unit, Hospital Universitario Miguel Servet, Zaragoza, España
| | - Joan Brunet
- Medical Oncology Department, Institut Català d'Oncologia, IDIBGi, Girona, Spain.,Medical Sciences Department, Universitat de Girona, Girona, Spain
| | - Joaquín Gavilá
- Medical Oncology Unit, Instituto Valenciano de Oncología, Valencia, Spain
| | - Javier Salvador
- Medical Oncology Unit, Hospital Virgen del Rocío, Sevilla, Spain
| | | | - Susana Bezares
- GEICAM Spanish Breast Cancer Research Group, Madrid, Spain
| | - Nerea Fernández de Larrea-Baz
- Department of Preventive Medicine and Public Health, School of Medicine, Universidad Autónoma de Madrid-IdiPaz, CIBERESP (CIBER of Epidemiology and Public Health), Madrid, Spain.,National Center for Epidemiology, Carlos III Institute of Health, Madrid, Spain.,Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), Institute of Health Carlos III, Madrid, Spain
| | - Beatriz Pérez-Gómez
- National Center for Epidemiology, Carlos III Institute of Health, Madrid, Spain.,Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), Institute of Health Carlos III, Madrid, Spain
| | - Miguel Martín
- Medical Oncology Unit, Instituto de Investigación Sanitaria Gregorio Marañón/Universidad Complutense, Madrid, Spain.,Centro de Investigación Biomédica en Red de Oncología, CIBERONC-ISCIII, Madrid, Spain
| | - Marina Pollán
- Department of Preventive Medicine and Public Health, School of Medicine, Universidad Autónoma de Madrid-IdiPaz, CIBERESP (CIBER of Epidemiology and Public Health), Madrid, Spain. .,National Center for Epidemiology, Carlos III Institute of Health, Madrid, Spain. .,Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), Institute of Health Carlos III, Madrid, Spain.
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17
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Zhao C, Yong T, Zhang Y, Xiao Y, Jin Y, Zheng C, Nirasawa T, Cai Z. Breast cancer proliferation and deterioration-associated metabolic heterogeneity changes induced by exposure of bisphenol S, a widespread replacement of bisphenol A. JOURNAL OF HAZARDOUS MATERIALS 2021; 414:125391. [PMID: 33652221 DOI: 10.1016/j.jhazmat.2021.125391] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 01/12/2021] [Accepted: 02/09/2021] [Indexed: 06/12/2023]
Abstract
Exposure to bisphenol A (BPA) is considered to be associated with the increased incidence of breast cancer. As a widespread replacement of BPA, the effect of bisphenol S (BPS) on breast tumor programming has not been studied. We reported that BPS exposure significantly promoted proliferation and deterioration of breast tumor by nonmonotonic dose response. The mechanisms were investigated by molecular biology and mass spectrometry-based lipidomics, proteomics and imaging. BPS exposure induced the spatially intratumor heterogeneity of morphology-driven lipids and proteins. The more significant proliferation resulted from BPS-10 (10 μg/kg body weight /day) exposure was evidenced by the variations of spatial distribution of lipids related to ceramide-sphingomyelin signaling pathway, proteins related to chromosomal stability and cell proliferation in central necrotic regions of breast tumor. In contrast, the BPS-100 exposure obviously accelerated deterioration of breast tumor by the variations of spatial distribution of proteins that were associated with the stability of nucleic acid structure in peripheral neoplastic regions. Accordingly, dysregulation of metabolism and protein function as well as DNA methylation and hypoxic tumor microenvironment could be applied to predict the possibility of tumorigenesis, proliferation and metastasis that might be caused by other bisphenol analogs.
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Affiliation(s)
- Chao Zhao
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong SAR, China; Bionic Sensing and Intelligence Center, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Ting Yong
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong SAR, China
| | - Yinbin Zhang
- Department of Oncology, The Second Affiliated Hospital of Medical College, Xi'an Jiaotong University, Shaanxi, China
| | - Yu Xiao
- Department of Breast and Thyroid Surgery, Shenzhen Second People's Hospital, Shenzhen, China
| | - Yaofeng Jin
- Department of Oncology, The Second Affiliated Hospital of Medical College, Xi'an Jiaotong University, Shaanxi, China
| | - Chang Zheng
- Department of Breast and Thyroid Surgery, Shenzhen Second People's Hospital, Shenzhen, China
| | | | - Zongwei Cai
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong SAR, China.
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18
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Cardona B, Rudel RA. Application of an in Vitro Assay to Identify Chemicals That Increase Estradiol and Progesterone Synthesis and Are Potential Breast Cancer Risk Factors. ENVIRONMENTAL HEALTH PERSPECTIVES 2021; 129:77003. [PMID: 34287026 PMCID: PMC8293912 DOI: 10.1289/ehp8608] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
BACKGROUND Established breast cancer risk factors, such as hormone replacement therapy and reproductive history, are thought to act by increasing estrogen and progesterone (P4) activity. OBJECTIVE We aimed to use in vitro screening data to identify chemicals that increase the synthesis of estradiol (E2) or P4 and evaluate potential risks. METHOD Using data from a high-throughput (HT) in vitro steroidogenesis assay developed for the U.S. Environmental Protection Agency (EPA) ToxCast program, we identified chemicals that increased estradiol (E2-up) or progesterone (P4-up) in human H295R adrenocortical carcinoma cells. We prioritized chemicals by their activity. We compiled in vivo studies and assessments about carcinogenicity and reproductive/developmental (repro/dev) toxicity. We identified exposure sources and predicted intakes from the U.S. EPA's ExpoCast. RESULTS We found 296 chemicals increased E2 (182) or P4 (185), with 71 chemicals increasing both. In vivo data often showed effects consistent with this mechanism. Of the E2- and P4-up chemicals, about 30% were likely repro/dev toxicants or carcinogens, whereas only 5-13% were classified as unlikely. However, most of the chemicals had insufficient in vivo data to evaluate their effects. Of 45 chemicals associated with mammary gland effects, and also tested in the H294R assay, 29 increased E2 or P4, including the well-known mammary carcinogen 7,12-dimethylbenz(a)anthracene. E2- and P4-up chemicals include pesticides, consumer product ingredients, food additives, and drinking water contaminants. DISCUSSION The U.S. EPA's in vitro screening data identified several hundred chemicals that should be considered as potential risk factors for breast cancer because they increased E2 or P4 synthesis. In vitro data is a helpful addition to current toxicity assessments, which are not sensitive to mammary gland effects. Relevant effects on the mammary gland are often not noticed or are dismissed, including for 2,4-dichlorophenol and cyfluthrin. Fifty-three active E2-up and 59 active P4-up chemicals that are in consumer products, food, pesticides, or drugs have not been evaluated for carcinogenic potential and are priorities for study and exposure reduction. https://doi.org/10.1289/EHP8608.
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19
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Mogus JP, LaPlante CD, Bansal R, Matouskova K, Schneider BR, Daniele E, Silva SJ, Hagen MJ, Dunphy KA, Jerry DJ, Schneider SS, Vandenberg LN. Exposure to Propylparaben During Pregnancy and Lactation Induces Long-Term Alterations to the Mammary Gland in Mice. Endocrinology 2021; 162:bqab041. [PMID: 33724348 PMCID: PMC8121128 DOI: 10.1210/endocr/bqab041] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Indexed: 12/13/2022]
Abstract
The mammary gland is a hormone sensitive organ that is susceptible to endocrine-disrupting chemicals (EDCs) during the vulnerable periods of parous reorganization (ie, pregnancy, lactation, and involution). Pregnancy is believed to have long-term protective effects against breast cancer development; however, it is unknown if EDCs can alter this effect. We examined the long-term effects of propylparaben, a common preservative used in personal care products and foods, with estrogenic properties, on the parous mouse mammary gland. Pregnant BALB/c mice were treated with 0, 20, 100, or 10 000 µg/kg/day propylparaben throughout pregnancy and lactation. Unexposed nulliparous females were also evaluated. Five weeks post-involution, mammary glands were collected and assessed for changes in histomorphology, hormone receptor expression, immune cell number, and gene expression. For several parameters of mammary gland morphology, propylparaben reduced the effects of parity. Propylparaben also increased proliferation, but not stem cell number, and induced modest alterations to expression of ERα-mediated genes. Finally, propylparaben altered the effect of parity on the number of several immune cell types in the mammary gland. These results suggest that propylparaben, at levels relevant to human exposure, can interfere with the effects of parity on the mouse mammary gland and induce long-term alterations to mammary gland structure. Future studies should address if propylparaben exposures negate the protective effects of pregnancy on mammary cancer development.
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Affiliation(s)
- Joshua P Mogus
- Department of Environmental Health Sciences, School of Public Health & Health Sciences, University of Massachusetts, Amherst, MA 01003, USA
| | - Charlotte D LaPlante
- Department of Environmental Health Sciences, School of Public Health & Health Sciences, University of Massachusetts, Amherst, MA 01003, USA
| | - Ruby Bansal
- Department of Environmental Health Sciences, School of Public Health & Health Sciences, University of Massachusetts, Amherst, MA 01003, USA
| | - Klara Matouskova
- Department of Environmental Health Sciences, School of Public Health & Health Sciences, University of Massachusetts, Amherst, MA 01003, USA
| | - Benjamin R Schneider
- Biospecimen Resource and Molecular Analysis Facility, Baystate Medical Center, Springfield, MA 01199, USA
| | - Elizabeth Daniele
- Department of Veterinary & Animal Sciences, University of Massachusetts, Amherst, MA 01003, USA
| | - Shannon J Silva
- Department of Environmental Health Sciences, School of Public Health & Health Sciences, University of Massachusetts, Amherst, MA 01003, USA
| | - Mary J Hagen
- Department of Veterinary & Animal Sciences, University of Massachusetts, Amherst, MA 01003, USA
| | - Karen A Dunphy
- Department of Veterinary & Animal Sciences, University of Massachusetts, Amherst, MA 01003, USA
| | - D Joseph Jerry
- Department of Veterinary & Animal Sciences, University of Massachusetts, Amherst, MA 01003, USA
- Pioneer Valley Life Sciences Institute, Springfield, MA 01199, USA
| | - Sallie S Schneider
- Biospecimen Resource and Molecular Analysis Facility, Baystate Medical Center, Springfield, MA 01199, USA
| | - Laura N Vandenberg
- Department of Environmental Health Sciences, School of Public Health & Health Sciences, University of Massachusetts, Amherst, MA 01003, USA
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20
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In Vitro and Vivo Identification, Metabolism and Action of Xenoestrogens: An Overview. Int J Mol Sci 2021; 22:ijms22084013. [PMID: 33924608 PMCID: PMC8070283 DOI: 10.3390/ijms22084013] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 04/08/2021] [Accepted: 04/12/2021] [Indexed: 12/12/2022] Open
Abstract
Xenoestrogens (XEs) are substances that imitate endogenous estrogens to affect the physiologic functions of humans or other animals. As endocrine disruptors, they can be either synthetic or natural chemical compounds derived from diet, pesticides, cosmetics, plastics, plants, industrial byproducts, metals, and medications. By mimicking the chemical structure that is naturally occurring estrogen compounds, synthetic XEs, such as polychlorinated biphenyls (PCBs), bisphenol A (BPA), and diethylstilbestrol (DES), are considered the focus of a group of exogenous chemical. On the other hand, nature phytoestrogens in soybeans can also serve as XEs to exert estrogenic activities. In contrast, some XEs are not similar to estrogens in structure and can affect the physiologic functions in ways other than ER-ERE ligand routes. Studies have confirmed that even the weakly active compounds could interfere with the hormonal balance with persistency or high concentrations of XEs, thus possibly being associated with the occurrence of the reproductive tract or neuroendocrine disorders and congenital malformations. However, XEs are most likely to exert tissue-specific and non-genomic actions when estrogen concentrations are relatively low. Current research has reported that there is not only one factor affected by XEs, but opposite directions are also found on several occasions, or even different components stem from the identical endocrine pathway; thus, it is more challenging and unpredictable of the physical health. This review provides a summary of the identification, detection, metabolism, and action of XEs. However, many details of the underlying mechanisms remain unknown and warrant further investigation.
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21
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Muthusamy S, Palanisamy S, Ramalingam S. Exposure of bisphenol A in breast cancer patients-quantitatively assessed by sensitivity-enhanced high-performance liquid chromatography coupled with fluorescence detection: A case-control study. Biomed Chromatogr 2021; 35:e5137. [PMID: 33829524 DOI: 10.1002/bmc.5137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 03/17/2021] [Accepted: 04/05/2021] [Indexed: 11/09/2022]
Abstract
A simple, reproducible and sensitive liquid chromatography (HPLC) method has been developed and validated for estimation of bisphenol A (BPA) in human urine. A simple liquid-liquid extraction technique was used in BPA sample preparation. The analyte was chromatographed on a Shimadzu Prominence HPLC system using isocratic mobile phase conditions at a flow rate of 0.500 ml/min and a Hypersil Gold C18 column maintained at 40°C. Quantification was performed on a fluorescence detector set at excitation 275 nm, emission 313 nm and bisphenol B was used as internal standard. The total run time was 8 min. The method was found to have acceptable sensitivity, selectivity, accuracy (98.82-103.64%), precision (1.17-5.36) and stability in the validation experiment carried out as per the USFDA guidelines. The method sensitivity was as low as 0.50 ng/ml. The applicability of the validated analytical method was established in human patient urine samples. The mean human urine BPA concentrations were 1.18 ± 2.11 ng/ml in the control group and 5.76 ± 6.00 ng/ml in the patient group (P < 0.001). Therefore, this method could be considered as an alternative for routine bio-monitoring of BPA which is less expensive and feasible in resource-poor settings.
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Affiliation(s)
- Sivaselvakumar Muthusamy
- Department of PSG, Center for Molecular Medicine and Therapeutics, PSG Institute of Medical Sciences and Research, Coimbatore, Tamil Nadu, India
| | - Susipriya Palanisamy
- Department of PSG, Center for Molecular Medicine and Therapeutics, PSG Institute of Medical Sciences and Research, Coimbatore, Tamil Nadu, India
| | - Sudha Ramalingam
- Department of PSG, Center for Molecular Medicine and Therapeutics, PSG Institute of Medical Sciences and Research, Coimbatore, Tamil Nadu, India.,Department of Community Medicine, PSG Institute of Medical Sciences and Research, Coimbatore, Tamil Nadu, India
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22
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Deng P, Tan M, Zhou W, Chen C, Xi Y, Gao P, Ma Q, Liang Y, Chen M, Tian L, Xie J, Liu M, Luo Y, Li Y, Zhang L, Wang L, Zeng Y, Pi H, Yu Z, Zhou Z. Bisphenol A promotes breast cancer cell proliferation by driving miR-381-3p-PTTG1-dependent cell cycle progression. CHEMOSPHERE 2021; 268:129221. [PMID: 33352510 DOI: 10.1016/j.chemosphere.2020.129221] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 11/22/2020] [Accepted: 12/03/2020] [Indexed: 06/12/2023]
Abstract
Bisphenol A (BPA) is a high-production-volume industrial chemical that facilitates the development of breast cancer. However, the molecular mechanism associated with BPA-induced breast cancer cell proliferation and migration remains elusive. In our study, we exposed MCF-7 cells to different concentrations of BPA (0.1, 1 and 10 μM) for 24, 48, or 72 h. We found that BPA exposure significantly promoted MCF-7 cell proliferation and migration but not invasion. To elucidate the mechanisms, the differentially expressed genes between the BPA and control groups were investigated with the Gene Expression Omnibus (GEO) database through GEO2R. Kyoto Encyclopedia of Genes and Genomes (KEGG) and pathway action network analyses demonstrated the important role of the cell cycle pathway in the effects of BPA exposure on MCF-7 cells. Importantly, analysis with the cytoHubba plugin of Cytoscape software coupled with analysis of enriched genes in the cell cycle pathway identified PTTG1 and CDC20 (two hub genes) as key targets associated with BPA-induced MCF-7 cell proliferation and migration. Interestingly, BPA significantly increased the protein expression levels of PTTG1 but not CDC20. Knockdown of PTTG1 inhibited the BPA-induced increase in proliferation and maintained cell cycle progression. In addition, we confirmed that the increased expression of PTTG1 upon BPA exposure was caused by miR-381-3p inhibition. Moreover, we verified that miR-381-3p expression was low and inversely correlated with PTTG1 expression in breast cancer tissues. Together, these findings demonstrate that BPA promotes high PTTG1 expression and alters the cell cycle to enhance MCF-7 cell proliferation by inhibiting miR-381-3p expression.
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Affiliation(s)
- Ping Deng
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Third Military Medical University, Chongqing, China
| | - Miduo Tan
- Surgery Department of Galactophore, The Affiliated Zhuzhou Hospital Xiangya Medical College CSU (Central Hospital of Zhuzhou City), Zhuzhou, China
| | - Wei Zhou
- Surgery Department of Galactophore, The Affiliated Zhuzhou Hospital Xiangya Medical College CSU (Central Hospital of Zhuzhou City), Zhuzhou, China
| | - Chunhai Chen
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Third Military Medical University, Chongqing, China
| | - Yu Xi
- Department of Environmental Medicine, School of Public Health, and Department of Emergency Medicine, First Affiliated Hospital, School of Medicine, Zhejiang University, China
| | - Peng Gao
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Third Military Medical University, Chongqing, China
| | - Qinlong Ma
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Third Military Medical University, Chongqing, China
| | - Yidan Liang
- School of Medicine, Guangxi University, Nanning, Guangxi Zhuang Autonomous Region, China
| | - Mengyan Chen
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Third Military Medical University, Chongqing, China
| | - Li Tian
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Third Military Medical University, Chongqing, China
| | - Jia Xie
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Third Military Medical University, Chongqing, China
| | - Mengyu Liu
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Third Military Medical University, Chongqing, China
| | - Yan Luo
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Third Military Medical University, Chongqing, China
| | - Yanqi Li
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Third Military Medical University, Chongqing, China
| | - Lei Zhang
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Third Military Medical University, Chongqing, China
| | - Liting Wang
- Biomedical Analysis Center, Third Military Medical University, Chongqing, China
| | - Youlong Zeng
- Biomedical Analysis Center, Third Military Medical University, Chongqing, China
| | - Huifeng Pi
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Third Military Medical University, Chongqing, China.
| | - Zhengping Yu
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Third Military Medical University, Chongqing, China.
| | - Zhou Zhou
- Department of Environmental Medicine, School of Public Health, and Department of Emergency Medicine, First Affiliated Hospital, School of Medicine, Zhejiang University, China.
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Winz C, Suh N. Understanding the Mechanistic Link between Bisphenol A and Cancer Stem Cells: A Cancer Prevention Perspective. J Cancer Prev 2021; 26:18-24. [PMID: 33842402 PMCID: PMC8020171 DOI: 10.15430/jcp.2021.26.1.18] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Revised: 03/06/2021] [Accepted: 03/08/2021] [Indexed: 12/12/2022] Open
Abstract
Endocrine disruptors, such as bisphenol A (BPA), have become more frequently present in the environment as contaminants, especially in industrialized countries. Long-term effects of these environmental contaminants in humans are elusive. With their structural similarity to estrogen, many environmental contaminants including BPA, have been shown to mimic the biological functions of estrogen, potentially contributing to the development of breast cancer. It has been well established that BPA exerts estrogenic activity in animal models and in vitro systems. There is a concern for adverse effects from the exposure to BPA in regard to developmental and reproductive toxicities. However, the mechanisms by which BPA promotes breast cancer development remain unknown. Understanding the role of endocrine disruptors and their key mechanisms of action is important for public health, especially by providing a foundation for a better intervention approach in cancer prevention.
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Affiliation(s)
- Cassandra Winz
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Piscataway, NJ, USA
- Toxicology Graduate Program, Rutgers, The State University of New Jersey, Piscataway, NJ, USA
| | - Nanjoo Suh
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Piscataway, NJ, USA
- Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, USA
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24
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Yaglova NV, Tsomartova DA, Obernikhin SS, Yaglov VV, Nazimova SV, Tsomartova ES, Chereshneva EV, Ivanova MY, Lomanovskaya TA. Differential Disrupting Effects of Prolonged Low-Dose Exposure to Dichlorodiphenyltrichloroethane on Androgen and Estrogen Production in Males. Int J Mol Sci 2021; 22:3155. [PMID: 33808818 PMCID: PMC8003643 DOI: 10.3390/ijms22063155] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 03/16/2021] [Accepted: 03/17/2021] [Indexed: 02/06/2023] Open
Abstract
Dichlorodiphenyltrichloroethane (DDT) is the most widespread, persistent pollutant and endocrine disruptor on the planet. Although DDT has been found to block androgen receptors, the effects of its low-dose exposure in different periods of ontogeny on the male reproductive system remain unclear. We evaluate sex steroid hormone production in the pubertal period and after maturation in male Wistar rats exposed to low doses of o,p'-DDT, either during prenatal and postnatal development or postnatal development alone. Prenatally and postnatally exposed rats exhibit lower testosterone production and increased estradiol and estriol serum levels after maturation, associated with the delayed growth of gonads. Postnatally exposed rats demonstrate accelerated growth of gonads and higher testosterone production in the pubertal period. In contrast to the previous group, they do not present raised estradiol production. All of the exposed animals exhibit a reduced conversion of progesterone to 17OH-progesterone after sexual maturation, which indicates putative attenuation of sex steroid production. Thus, the study reveals age-dependent outcomes of low-dose exposure to DDT. Prenatal onset of exposure results in the later onset of androgen production and the enhanced conversion of androgens to estrogens after puberty, while postnatal exposure induces the earlier onset of androgen secretion.
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Affiliation(s)
- Nataliya V. Yaglova
- Laboratory of Endocrine System Development, Federal State Budgetary Scientific Institution “Research Institute of Human Morphology”, 117418 Moscow, Russia; (D.A.T.); (S.S.O.); (V.V.Y.); (S.V.N.); (E.S.T.)
| | - Dibakhan A. Tsomartova
- Laboratory of Endocrine System Development, Federal State Budgetary Scientific Institution “Research Institute of Human Morphology”, 117418 Moscow, Russia; (D.A.T.); (S.S.O.); (V.V.Y.); (S.V.N.); (E.S.T.)
- Department of Histology, Cytology, and Embryology, Federal State Funded Educational Institution of Higher Education I.M. Sechenov First Moscow State Medical University, 119435 Moscow, Russia; (E.V.C.); (M.Y.I.); (T.A.L.)
| | - Sergey S. Obernikhin
- Laboratory of Endocrine System Development, Federal State Budgetary Scientific Institution “Research Institute of Human Morphology”, 117418 Moscow, Russia; (D.A.T.); (S.S.O.); (V.V.Y.); (S.V.N.); (E.S.T.)
| | - Valentin V. Yaglov
- Laboratory of Endocrine System Development, Federal State Budgetary Scientific Institution “Research Institute of Human Morphology”, 117418 Moscow, Russia; (D.A.T.); (S.S.O.); (V.V.Y.); (S.V.N.); (E.S.T.)
| | - Svetlana V. Nazimova
- Laboratory of Endocrine System Development, Federal State Budgetary Scientific Institution “Research Institute of Human Morphology”, 117418 Moscow, Russia; (D.A.T.); (S.S.O.); (V.V.Y.); (S.V.N.); (E.S.T.)
| | - Elina S. Tsomartova
- Laboratory of Endocrine System Development, Federal State Budgetary Scientific Institution “Research Institute of Human Morphology”, 117418 Moscow, Russia; (D.A.T.); (S.S.O.); (V.V.Y.); (S.V.N.); (E.S.T.)
- Department of Histology, Cytology, and Embryology, Federal State Funded Educational Institution of Higher Education I.M. Sechenov First Moscow State Medical University, 119435 Moscow, Russia; (E.V.C.); (M.Y.I.); (T.A.L.)
| | - Elizaveta V. Chereshneva
- Department of Histology, Cytology, and Embryology, Federal State Funded Educational Institution of Higher Education I.M. Sechenov First Moscow State Medical University, 119435 Moscow, Russia; (E.V.C.); (M.Y.I.); (T.A.L.)
| | - Marina Y. Ivanova
- Department of Histology, Cytology, and Embryology, Federal State Funded Educational Institution of Higher Education I.M. Sechenov First Moscow State Medical University, 119435 Moscow, Russia; (E.V.C.); (M.Y.I.); (T.A.L.)
| | - Tatiana A. Lomanovskaya
- Department of Histology, Cytology, and Embryology, Federal State Funded Educational Institution of Higher Education I.M. Sechenov First Moscow State Medical University, 119435 Moscow, Russia; (E.V.C.); (M.Y.I.); (T.A.L.)
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25
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García Muro AM, García Ruvalcaba A, Rizo de la Torre LDC, Sánchez López JY. Role of the BMP6 protein in breast cancer and other types of cancer. Growth Factors 2021; 39:1-13. [PMID: 34706618 DOI: 10.1080/08977194.2021.1994964] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The BMP6 protein (Bone Morphogenetic Protein 6) is part of the superfamily of transforming growth factor-beta (TGF-β) ligands, participates in iron homeostasis, inhibits invasion by increasing adhesions and cell-cell type interactions and induces angiogenesis directly on vascular endothelial cells. BMP6 is coded by a tumor suppressor gene whose subexpression is related to the development and cancer progression; during neoplastic processes, methylation is the main mechanism by which gene silencing occurs. This work presents a review on the role of BMP6 protein in breast cancer (BC) and other types of cancer. The studies carried out to date suggest the participation of the BMP6 protein in the epithelial-mesenchymal transition (EMT) phenotype, cell growth and proliferation; however, these processes are affected in a variable way in the different types of cancer, the methylated CpG sites in BMP6 gene promoter, as well as the interaction with other proteins could be the cause of such variation.
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Affiliation(s)
- Andrea Marlene García Muro
- División de Genética, Centro de Investigación Biomédica de Occidente, Instituto Mexicano del Seguro Social, Guadalajara, México
- Doctorado en Genética Humana, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, México
| | - Azaria García Ruvalcaba
- División de Genética, Centro de Investigación Biomédica de Occidente, Instituto Mexicano del Seguro Social, Guadalajara, México
- Doctorado en Genética Humana, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, México
| | | | - Josefina Yoaly Sánchez López
- División de Genética, Centro de Investigación Biomédica de Occidente, Instituto Mexicano del Seguro Social, Guadalajara, México
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26
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Mir AH, Dumka VK, Sultan F, Lonare MK. Genotoxic effects of drospirenone and ethinylestradiol in human breast cells ( in vitro) and bone marrow cells of female mice ( in vivo). Drug Chem Toxicol 2020; 45:1493-1499. [PMID: 33148062 DOI: 10.1080/01480545.2020.1843473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Estrogen and progesterone congeners as found in various oral contraceptive formulations have been implicated as the cause of cancer in sex and tissue-specific targets. The mechanism of carcinogenesis by sex steroids is still debatable. In this study, we evaluated the genotoxicity induced by two components of one of the commonly used oral contraceptive formulation; drospirenone and ethinylestradiol in human breast cells (MCF-7) in vitro and in bone marrow cells of female mice in vivo. DNA damage was assessed by alkaline comet assay. Both of the drugs produced DNA damage in human breast cells at exposure concentrations which are about 100-fold and above than normally found in human blood after their lowest recommended doses. The DNA damage was produced only after metabolic activation by mice liver S-9 fraction in both cases. The co-exposure with both the compounds at median exposure levels resulted in potentiation of DNA damage. In bone marrow cells of adult female mice, both the compounds produced DNA damage at human equivalent doses after exposure was carried out repeatedly for approximately one estrus cycle (5 days). The co-administration with the compounds resulted in potentiation of DNA damage as indicated by percent tail DNA in comet assay. Thus it is concluded that drospirenone and ethinylestradiol cause DNA damage in certain target specific tissue (mammary epithelial cells) and in female bone marrow cells. The co-exposure with drospirenone and ethinylestradiol results in potentiation of genotoxicity which may pose a threat of cancer development in women taking these drugs for long periods.
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Affiliation(s)
- Arshad H Mir
- Department of Pharmacology and Toxicology, GADVASU, Ludhiana, Punjab, India
| | - Vinod K Dumka
- Department of Pharmacology and Toxicology, GADVASU, Ludhiana, Punjab, India
| | - Faheem Sultan
- Department of Pharmacology and Toxicology, GADVASU, Ludhiana, Punjab, India
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27
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Dumitrascu MC, Mares C, Petca RC, Sandru F, Popescu RI, Mehedintu C, Petca A. Carcinogenic effects of bisphenol A in breast and ovarian cancers. Oncol Lett 2020; 20:282. [PMID: 33014160 DOI: 10.3892/ol.2020.12145] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Accepted: 08/05/2020] [Indexed: 12/15/2022] Open
Abstract
Endocrine-disrupting chemicals (EDCs) are exogenous chemical compounds ubiquitously found in everyday life of the modern world. EDCs enter the human body where they act similarly to endogenous hormones, altering the functions of the endocrine system and causing adverse effects on human health. Bisphenol A (BPA), the principal representative of this class, is a carbon-based synthetic plastic, and a key element in manufacturing cans, reusable water bottles and medical equipment. BPA mimics the actions of estrogen on multiple levels by activating estrogen receptors α and β. BPA regulates various processes, such as cell proliferation, migration and apoptosis, leading to neoplastic changes. Considering genetic mechanisms, BPA exerts its functions via multiple oncogenic signaling pathways, including the STAT3, PI3K/AKT and MAPK pathways. Furthermore, BPA is associated with various modifications of the reproductive system in both males and females. These alterations include benign lesions, such as endometrial hyperplasia, the development of ovarian cysts, an increase in the ductal density of mammary gland cells and other preneoplastic lesions. These benign lesions may continue to develop to breast or ovarian cancer; the effects of BPA depend on various molecular and epigenetic mechanisms that dictate whether the endocrine or reproductive system is impacted, wherein preexisting benign lesions can become cancerous. The present review supports the need for continuous research on BPA, considering its widespread use and most available data suggesting a carcinogenic effect of BPA on the female reproductive system. Although most studies on BPA have been conducted in vitro with human cells or in vivo with animal models, it can be argued that more studies should be conducted in vivo with humans to further promote understanding of the impact of BPA.
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Affiliation(s)
- Mihai Cristian Dumitrascu
- Department of Obstetrics and Gynecology, 'Carol Davila' University of Medicine and Pharmacy, 050474 Bucharest, Romania.,Department of Obstetrics and Gynecology, University Emergency Hospital, 050098 Bucharest, Romania
| | - Cristian Mares
- Department of Urology, 'Prof. Dr. Th. Burghele' Clinical Hospital, 050659 Bucharest, Romania
| | - Razvan-Cosmin Petca
- Department of Urology, 'Prof. Dr. Th. Burghele' Clinical Hospital, 050659 Bucharest, Romania.,Department of Urology, 'Carol Davila' University of Medicine and Pharmacy, 050474 Bucharest, Romania
| | - Florica Sandru
- Department of Dermatology, Elias Emergency University Hospital, 011461 Bucharest, Romania.,Department of Dermatology, 'Carol Davila' University of Medicine and Pharmacy, 050474 Bucharest, Romania
| | - Razvan-Ionut Popescu
- Department of Urology, 'Prof. Dr. Th. Burghele' Clinical Hospital, 050659 Bucharest, Romania
| | - Claudia Mehedintu
- Department of Obstetrics and Gynecology, 'Carol Davila' University of Medicine and Pharmacy, 050474 Bucharest, Romania.,Department of Obstetrics and Gynecology, Malaxa Clinical Hospital, 022441 Bucharest, Romania
| | - Aida Petca
- Department of Obstetrics and Gynecology, 'Carol Davila' University of Medicine and Pharmacy, 050474 Bucharest, Romania.,Department of Obstetrics and Gynecology, Elias Emergency University Hospital, 011461 Bucharest, Romania
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28
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Lin SY, Yang YC, Chang CYY, Hsu WH, Lin CC, Jiang CC, Wang IK, Lin CD, Hsu CY, Kao CH. Association of fine-particulate and acidic-gas air pollution with premenstrual syndrome risk. QJM 2020; 113:643-650. [PMID: 32186731 DOI: 10.1093/qjmed/hcaa096] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 03/04/2020] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVE Air pollution had been reported to be associated with the reproductive health of women. However, the association of particulate matter (PM) and acid gases air pollution with premenstrual syndrome (PMS) warrants investigation. This study investigated the effects of air pollution on PMS risk. POPULATION We combined data from the Taiwan Air Quality-Monitoring Database and the Longitudinal Health Insurance Database. In total, an observational cohort of 85 078 Taiwanese women not diagnosed as having PMS. METHODS Air pollutant concentrations were grouped into four levels based on the concentration quartiles of several types of air pollutants. MAIN OUTCOME MEASURES We then applied univariable and multivariable Cox proportional hazard regression models to assess PMS risk in association with each pollutant type. RESULTS Women exposed to Q4-level SO2 exhibited a 7.77 times higher PMS risk compared with those to Q1-level SO2 (95% confidence interval [CI] = 6.22-9.71). Women exposed to Q4-level NOx exhibited a 2.86 times higher PMS risk compared with those exposed to Q1-level NOx (95% CI = 2.39-3.43). Women exposed to Q4-level NO exhibited a 3.17 times higher PMS risk compared with women exposed to Q1-level NO (95% CI = 2.68-3.75). Finally, women exposed to Q4-level PM with a ≤2.5-µm diameter (PM2.5) exhibited a 3.41 times higher PMS risk compared with those exposed to Q1-level PM2.5 (95% CI = 2.88-4.04). CONCLUSIONS High incidences of PMS were noted in women who lived in areas with higher concentrations of SO2, NOx, NO, NO2 and PM2.5.
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Affiliation(s)
- S-Y Lin
- Graduate Institute of Biomedical Sciences and School of Medicine, College of Medicine
- Division of Nephrology and Kidney Institute
| | - Y-C Yang
- Management Office for Health Data
- College of Medicine
| | - C Y-Y Chang
- Graduate Institute of Biomedical Sciences and School of Medicine, College of Medicine
- Department of Gynecology
| | - W-H Hsu
- Graduate Institute of Biomedical Sciences and School of Medicine, College of Medicine
- Department of Chest Medicine
| | - C-C Lin
- Graduate Institute of Biomedical Sciences and School of Medicine, College of Medicine
- Department of Family Medicine
| | - C-C Jiang
- Graduate Institute of Biomedical Sciences and School of Medicine, College of Medicine
- Division of Nephrology and Kidney Institute
| | - I-K Wang
- Graduate Institute of Biomedical Sciences and School of Medicine, College of Medicine
- Division of Nephrology and Kidney Institute
| | - C-D Lin
- Graduate Institute of Biomedical Sciences and School of Medicine, College of Medicine
- Department Teaching
- Department Otolaryngology
| | - C-Y Hsu
- Graduate Institute of Biomedical Sciences and School of Medicine, College of Medicine
| | - C-H Kao
- Graduate Institute of Biomedical Sciences and School of Medicine, College of Medicine
- Department of Nuclear Medicine and PET Center, China Medical University Hospital, No 2 Yu-Der Road, 40447, Taichung, Taiwan
- Department of Bioinformatics and Medical Engineering, Asia University, No. 500, Liufeng Rd., Wufeng Dist., Taichung City 413, Taiwan
- Center of Augmented Intelligence in Healthcare, China Medical University Hospital, No 2 Yu-Der Road, 40447, Taichung, Taiwan
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29
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Akhouri V, Kumar A, Kumari M. Antitumour Property of Pterocarpus santalinus Seeds Against DMBA-Induced Breast Cancer in Rats. Breast Cancer (Auckl) 2020; 14:1178223420951193. [PMID: 32913391 PMCID: PMC7444153 DOI: 10.1177/1178223420951193] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Accepted: 07/21/2020] [Indexed: 12/27/2022] Open
Abstract
Breast cancer has been one of the most common form of malignancy globally among women, for more than a decade. Despite various preventive and treatment measures, it remains associated with high incidence and mortality rate. Pterocarpus santalinus Linn. f. has been extensively used in Indian medicine system Ayurveda, due to its various medicinal properties. However, despite various research works on the anticancer activity of P santalinus, no studies have been reported on animal model. Therefore, this study was aimed to decipher the antitumour activity of ethanolic seeds extract of P santalinus on DMBA (7,12-dimethylbenz(a)-anthracene)-induced breast cancer in rats. Fifty-five-days-old weighed (150 ± 10 g) female Charles Foster rats (12 females) were used for the study. The rats were divided into 3 groups of 4 rats each. 7,12-Dimethylbenz(a)-anthracene (single dose of 20 mg/mL dissolved in olive oil) was induced orally, to develop breast tumour. After the development of breast tumours (about 0.5 cm), the rats were treated with P santalinus ethanolic seeds extract (300 mg/kg body weight/day) orally for 5 weeks and then volume of tumour was measured. Oral administration of P santalinus extract resulted in about 49.5% tumour growth inhibition in the final week of treatment in DMBA + P santalinus group as compared with the DMBA group. Pterocarpus santalinus administration also significantly reduced (P < .0001) the serum malondialdehyde level from 58.81 ± 4.09 nmol/mL in DMBA group to 10.87 ± 1.20 nmol/mL in the DMBA + P santalinus group. Serum tumour necrosis factor-α level reduced significantly (P < .0001) from 80.43 ± 2.45 pg/mL in DMBA group to 28.30 ± 3.24 pg/mL in the DMBA + P santalinus group. The blood serum glucose level also reduced significantly (P < .0001) from 205.9 ± 22.22 mg/dL in DMBA group to 86.44 ± 8.36 in DMBA + P santalinus group. There was significant (P < .0001) improvement in the both the liver and kidney serum biomarkers level after P santalinus administration. The histological study of mammary tissues of rats shows that, in the DMBA group immature fibrocytes are completely replacing the normal adipocytes suggestive of fibroma molle, whereas in the DMBA + P santalinus group mature fibrocytes with multilayer glandular cells were seen denoting fibroadenoma. Thus, the P santalinus ethanolic seed extract possesses antitumorigenic, antioxidant and hypoglycaemic properties as well as hepato-renal protective effect. Hence, it may be concluded that P santalinus has therapeutic role against DMBA-induced breast cancer in rats and has a greater potential to develop as a chemotherapeutic agent in breast cancer treatment.
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Affiliation(s)
- Vivek Akhouri
- Department of Biotechnology, Anugrah Narayan College, Patna, India
| | - Arun Kumar
- Research Centre, Mahavir Cancer Sansthan & Research Centre, Patna, India
| | - Manorma Kumari
- Department of Biotechnology, Anugrah Narayan College, Patna, India
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30
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Segovia-Mendoza M, Nava-Castro KE, Palacios-Arreola MI, Garay-Canales C, Morales-Montor J. How microplastic components influence the immune system and impact on children health: Focus on cancer. Birth Defects Res 2020; 112:1341-1361. [PMID: 32767490 DOI: 10.1002/bdr2.1779] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 07/10/2020] [Indexed: 01/01/2023]
Abstract
BACKGROUND As a result of human socioeconomic activity, industrial wastes have increased distressingly. Plastic pollution is globally distributed across the world due to its properties of buoyancy and durability. A big health hazard is the sorption of toxicants to plastic while traveling through the environment. Two broad classes of plastic-related chemicals are of critical concern for human health-bisphenols and phthalates. Bisphenol A (BPA) is an endocrine-disruptor compound (EDC) with estrogenic activity. It is used in the production of materials that are used daily. The endocrine modulating activity of BPA and its effects on reproductive health has been widely studied. BPA also has effects on the immune system; however, they are poorly investigated and the available data are inconclusive. Phthalates are also EDCs used as plasticizers in a wide array of daily-use products. Since these compounds are not covalently bound to the plastic matrix, they easily leach out from it, leading to high human exposure. These compounds exert several cell effects through modulating different endocrine pathways, such as estrogen, androgen, peroxisome proliferator-activated receptor gamma, and arylhydrocarbon receptor pathways. The exposure to both classes of plastic derivatives during critical periods has detrimental effects on human health. METHODS In this review, we have compiled the most important of their perinatal effects on the function of the immune system and their relationship to the development of different types of cancer. RESULTS/CONCLUSION The administration of bisphenols and phthalates during critical stages of development affects important immune system components, and the immune function; which might be related to the development of different diseases including cancer.
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Affiliation(s)
- Mariana Segovia-Mendoza
- Departamento de Farmacología, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - Karen E Nava-Castro
- Laboratorio de Genotoxicología y Mutagénesis Ambiental, Departamento de Ciencias Ambientales, Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - Margarita I Palacios-Arreola
- Laboratorio de Genotoxicología y Mutagénesis Ambiental, Departamento de Ciencias Ambientales, Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - Claudia Garay-Canales
- Departamento de Inmunología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - Jorge Morales-Montor
- Departamento de Inmunología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
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Chen Q, Zhou C, Shi W, Wang X, Xia P, Song M, Liu J, Zhu H, Zhang X, Wei S, Yu H. Mechanistic in silico modeling of bisphenols to predict estrogen and glucocorticoid disrupting potentials. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 728:138854. [PMID: 32570315 DOI: 10.1016/j.scitotenv.2020.138854] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 04/17/2020] [Accepted: 04/18/2020] [Indexed: 06/11/2023]
Abstract
Endocrine disrupting chemicals (EDCs) can act as agonists, antagonists or mixed agonists/antagonists toward estrogen receptor α (ERα) and glucocorticoid receptor (GR) in a tissue- and cell-specific manner. However, the activation/inhibition mechanism by which structurally different chemicals induce various types of disruption remain ambiguous. This unrevealed theory limited the in silico modeling of EDCs and the prioritization of potential EDCs for experimental testing. As a kind of chemical widely used in manufacture, bisphenols (BPs) have attracted great attentions on their potential endocrine disrupting effects. BPs used in this study exhibited pure agonistic, pure antagonistic or mixed agonistic/antagonistic activities toward ERα and/or GR. According to the mechanistic modeling, the pure agonistic and pure antagonistic activities were attributed to a single type of protein conformation induced by BPs-ERα and/or BPs-GR interactions, whereas the mixed agonistic/antagonistic activities were attributed to multiple conformations that concomitantly exist. After interacting with BPs, the active conformation recruits coactivator to induce agonistic activity and the blocked conformation inhibits coactivator to induce antagonistic activity, whereas the concomitantly-existing multiple conformations (active, blocked and competing conformations) recruit coactivator, recruit corepressor and/or inhibit coactivator to dually induce the agonistic and antagonistic activities. Therefore, the in silico modeling in this study can not only predict ERα and GR disrupting activities but also, especially, identify the potential mechanisms. This mechanistic study breaks the current bottleneck of computational toxicology and can be widely used to prioritize potential estrogen/glucocorticoid disruptor for experimental testing in both pre-clinic and clinic studies.
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Affiliation(s)
- Qinchang Chen
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, People's Republic of China; Jiangsu Environmental Monitoring Center, Nanjing University, Nanjing, Jiangsu 210023, People's Republic of China; Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, Nanjing University, Nanjing, Jiangsu 210023, People's Republic of China
| | - Chengzhuo Zhou
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, People's Republic of China; Jiangsu Environmental Monitoring Center, Nanjing University, Nanjing, Jiangsu 210023, People's Republic of China; Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, Nanjing University, Nanjing, Jiangsu 210023, People's Republic of China
| | - Wei Shi
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, People's Republic of China; Jiangsu Environmental Monitoring Center, Nanjing University, Nanjing, Jiangsu 210023, People's Republic of China; Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, Nanjing University, Nanjing, Jiangsu 210023, People's Republic of China.
| | - Xiaoxiang Wang
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, People's Republic of China; Jiangsu Environmental Monitoring Center, Nanjing University, Nanjing, Jiangsu 210023, People's Republic of China; Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, Nanjing University, Nanjing, Jiangsu 210023, People's Republic of China
| | - Pu Xia
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, People's Republic of China; Jiangsu Environmental Monitoring Center, Nanjing University, Nanjing, Jiangsu 210023, People's Republic of China; Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, Nanjing University, Nanjing, Jiangsu 210023, People's Republic of China
| | - Maoyong Song
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, People's Republic of China
| | - Jing Liu
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Hao Zhu
- Department of Chemistry, Rutgers University, Camden, NJ 08102, USA
| | - Xiaowei Zhang
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, People's Republic of China; Jiangsu Environmental Monitoring Center, Nanjing University, Nanjing, Jiangsu 210023, People's Republic of China; Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, Nanjing University, Nanjing, Jiangsu 210023, People's Republic of China
| | - Si Wei
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, People's Republic of China; Jiangsu Environmental Monitoring Center, Nanjing University, Nanjing, Jiangsu 210023, People's Republic of China; Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, Nanjing University, Nanjing, Jiangsu 210023, People's Republic of China
| | - Hongxia Yu
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, People's Republic of China; Jiangsu Environmental Monitoring Center, Nanjing University, Nanjing, Jiangsu 210023, People's Republic of China; Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, Nanjing University, Nanjing, Jiangsu 210023, People's Republic of China
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Qiu Z, Xiao J, Zheng S, Huang W, Du T, Au WW, Wu K. Associations between functional polychlorinated biphenyls in adipose tissues and prognostic biomarkers of breast cancer patients. ENVIRONMENTAL RESEARCH 2020; 185:109441. [PMID: 32247153 DOI: 10.1016/j.envres.2020.109441] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Revised: 03/23/2020] [Accepted: 03/24/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND Exposure to polychlorinated biphenyls (PCBs) has been shown to influence expression of some biomarkers that are predictive/prognostic for breast cancer. Therefore, our study was conducted to further investigating associations of different functional PCBs in adipose tissue with breast cancer prognostic biomarkers. METHODS Two hundred and five breast cancer patients were recruited in Shantou, China. Breast adipose tissues were collected during their resection surgery and levels of 7 PCB congeners were analyzed by gas chromatography-mass spectrometry (GC-MS). The PCB congeners were divided into 4 groups according to structure-activity. Socio-demographic, clinical and pathological information were obtained from questionnaire and digital medical records. Odds ratios (ORs) for associations between prognostic biomarkers and PCB levels (tertile 3 [T3], tertile 2 [T2] vs. tertile 1) were estimated from logistic regression models. RESULTS Most PCB congeners were detectable, with a highest level (22.06 ng/g lipid) of PCB153. As for estrogenic PCBs, increased PCB52 exposure was positively associated with PR expression (ORT2 = 2.36, Ptrend = 0.054), but higher PCB101 level was negatively associated with HER-2 (ORT3 = 0.24, Ptrend = 0.029) and tumor size (OR = 0.43). Limited dioxin-like PCB138 exposure was positively associated with ER (ORT2 = 3.23, ORT3 = 3.77, Ptrend = 0.047) but negatively with Top-IIα expression (ORT2 = 0.35, ORT3 = 0.28, Ptrend = 0.080). Higher PCB153 (CYP inducer) level was negatively associated with ER (ORT2 = 0.32, ORT3 = 0.19, Ptrend = 0.038) but positively with Ki-67 expression (ORT2 = 1.43, ORT3 = 3.60, Ptrend = 0.055). Higher neurotoxic PCB28 was positively associated with HER-2 (ORT3 = 5.43, Ptrend = 0.006) and tumor size (OR = 2.37). Moreover, total PCBs exposure was positively associated with VEGF-C (ORT2 = 76.91, ORT3 = 97.96, Ptrend = 0.041) and tumor metastasis (OR = 2.25). CONCLUSIONS Different functional PCB congeners have different associations (both positive and negative) with breast cancer prognostic biomarkers, as well as tumor classification stage. Therefore, the development and aggressiveness of breast cancer may depend upon exposure to specific structure-activity of PCBs.
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Affiliation(s)
- Zhaolong Qiu
- Department of Preventive Medicine, Shantou University Medical College, Shantou, 515041, Guangdong Province, China
| | - Jiefeng Xiao
- Department of Preventive Medicine, Shantou University Medical College, Shantou, 515041, Guangdong Province, China
| | - Shukai Zheng
- Department of Preventive Medicine, Shantou University Medical College, Shantou, 515041, Guangdong Province, China
| | - Wenlong Huang
- Department of Preventive Medicine, Shantou University Medical College, Shantou, 515041, Guangdong Province, China
| | - Taifeng Du
- Department of Preventive Medicine, Shantou University Medical College, Shantou, 515041, Guangdong Province, China
| | - William W Au
- University of Medicine, Pharmacy, Science and Technology, Targu Mures, Romania
| | - Kusheng Wu
- Department of Preventive Medicine, Shantou University Medical College, Shantou, 515041, Guangdong Province, China.
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Donini CF, El Helou M, Wierinckx A, Győrffy B, Aires S, Escande A, Croze S, Clezardin P, Lachuer J, Diab-Assaf M, Ghayad SE, Fervers B, Cavaillès V, Maguer-Satta V, Cohen PA. Long-Term Exposure of Early-Transformed Human Mammary Cells to Low Doses of Benzo[a]pyrene and/or Bisphenol A Enhances Their Cancerous Phenotype via an AhR/GPR30 Interplay. Front Oncol 2020; 10:712. [PMID: 32670863 PMCID: PMC7326103 DOI: 10.3389/fonc.2020.00712] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Accepted: 04/15/2020] [Indexed: 12/12/2022] Open
Abstract
It is of utmost importance to decipher the role of chronic exposure to low doses of environmental carcinogens on breast cancer progression. The early-transformed triple-negative human mammary MCF10AT1 cells were chronically (60 days) exposed to low doses (10−10 M) of Benzo[a]pyrene (B[a]P), a genotoxic agent, and/or Bisphenol A (BPA), an endocrine disruptor. Our study revealed that exposed MCF10AT1 cells developed, in a time-dependent manner, an acquired phenotype characterized by an increase in cancerous properties (anchorage independent growth and stem-like phenotype). Co-exposure of MCF10AT1 cells to B[a]P and BPA led to a significantly greater aggressive phenotype compared to B[a]P or BPA alone. This study provided new insights into the existence of a functional interplay between the aryl hydrocarbon receptor (AhR) and the G protein-coupled receptor 30 (GPR30) by which chronic and low-dose exposure of B[a]P and/or BPA fosters the progression of MCF10AT1 cells into a more aggressive substage. Experiments using AhR or GPR30 antagonists, siRNA strategies, and RNAseq analysis led us to propose a model in which AhR signaling plays a “driver role” in the AhR/GPR30 cross-talk in mediating long-term and low-dose exposure of B[a]P and/or BPA. Retrospective analysis of two independent breast cancer cohorts revealed that the AhR/GPR30 mRNA expression signature resulted in poor breast cancer prognosis, in particular in the ER-negative and the triple-negative subtypes. Finally, the study identified targeting AhR and/or GPR30 with specific antagonists as a strategy capable of inhibiting carcinogenesis associated with chronic exposure to low doses of B[a]P and BPA in MCF10AT1 cells. Altogether, our results indicate that the engagement of both AhR and GPR30 functions, in particular in an ER-negative/triple-negative context of breast cells, favors tumor progression and leads to poor prognosis.
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Affiliation(s)
- Caterina F Donini
- Université Lyon 1, Lyon, France.,CRCL-Centre de Recherche en Cancérologie de Lyon-Inserm U1052-CNRS U5286, Lyon, France.,Département Cancer et Environnement, Centre Léon Bérard, Lyon, France
| | - Myriam El Helou
- Université Lyon 1, Lyon, France.,CRCL-Centre de Recherche en Cancérologie de Lyon-Inserm U1052-CNRS U5286, Lyon, France.,Faculty of sciences II, Lebanese University, Fanar, Lebanon
| | - Anne Wierinckx
- Université Lyon 1, Lyon, France.,CRCL-Centre de Recherche en Cancérologie de Lyon-Inserm U1052-CNRS U5286, Lyon, France.,ProfileXpert, SFR-Est, CNRS UMR-S3453, INSERM US7, Lyon, France
| | - Balázs Győrffy
- Department of Bioinformatics, Semmelweis University and TTK Lendület Cancer Biomarker Research Group, Budapest, Hungary
| | - Sophie Aires
- Université Lyon 1, Lyon, France.,CRCL-Centre de Recherche en Cancérologie de Lyon-Inserm U1052-CNRS U5286, Lyon, France
| | | | - Séverine Croze
- Université Lyon 1, Lyon, France.,ProfileXpert, SFR-Est, CNRS UMR-S3453, INSERM US7, Lyon, France
| | | | - Joël Lachuer
- Université Lyon 1, Lyon, France.,CRCL-Centre de Recherche en Cancérologie de Lyon-Inserm U1052-CNRS U5286, Lyon, France.,ProfileXpert, SFR-Est, CNRS UMR-S3453, INSERM US7, Lyon, France
| | | | | | - Béatrice Fervers
- Université Lyon 1, Lyon, France.,CRCL-Centre de Recherche en Cancérologie de Lyon-Inserm U1052-CNRS U5286, Lyon, France.,Département Cancer et Environnement, Centre Léon Bérard, Lyon, France
| | - Vincent Cavaillès
- IRCM - Institut de Recherche en Cancérologie de Montpellier, INSERM U1194, Université de Montpellier, Institut régional du Cancer de Montpellier, CNRS, Montpellier, France
| | | | - Pascale A Cohen
- Université Lyon 1, Lyon, France.,CRCL-Centre de Recherche en Cancérologie de Lyon-Inserm U1052-CNRS U5286, Lyon, France.,Département Cancer et Environnement, Centre Léon Bérard, Lyon, France.,ProfileXpert, SFR-Est, CNRS UMR-S3453, INSERM US7, Lyon, France.,INSERM, UMR1033 LYOS, Lyon, France
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Fanelli GN, Naccarato AG, Scatena C. Recent Advances in Cancer Plasticity: Cellular Mechanisms, Surveillance Strategies, and Therapeutic Optimization. Front Oncol 2020; 10:569. [PMID: 32391266 PMCID: PMC7188928 DOI: 10.3389/fonc.2020.00569] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Accepted: 03/30/2020] [Indexed: 12/12/2022] Open
Abstract
The processes of recurrence and metastasis, through which cancer relapses locally or spreads to distant sites in the body, accounts for more than 90% of cancer-related deaths. At present there are very few treatment options for patients at this stage of their disease. The main obstacle to successfully treat advanced cancer is the cells' ability to change in ways that make them resistant to treatment. Understanding the cellular mechanisms that mediate this cancer cell plasticity may lead to improved patient survival. Epigenetic reprogramming, together with tumor microenvironment, drives such dynamic mechanisms favoring tumor heterogeneity, and cancer cell plasticity. In addition, the development of new approaches that can report on cancer plasticity in their native environment have profound implications for studying cancer biology and monitoring tumor progression. We herein provide an overview of recent advancements in understanding the mechanisms regulating cell plasticity and current strategies for their monitoring and therapy management.
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Affiliation(s)
- Giuseppe Nicolò Fanelli
- Division of Pathology, Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Antonio Giuseppe Naccarato
- Division of Pathology, Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Cristian Scatena
- Division of Pathology, Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
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Zhao C, Tang Z, Xie P, Lin K, Chung ACK, Cai Z. Immunotoxic Potential of Bisphenol F Mediated through Lipid Signaling Pathways on Macrophages. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:11420-11428. [PMID: 31453682 DOI: 10.1021/acs.est.8b07314] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
As a bisphenol A (BPA) alternative, bisphenol F (BPF) has been detected in various products, such as paper products, personal care products, and food. More importantly, the toxicity of BPF remains underexplored. We reported an integrated method to study the immunotoxic potentials and the underlying mechanisms of BPF on cell apoptosis, macrophage polarization, reactive oxygen species generation, expression and secretion of immune-related cytokines, and reprogramming of lipid signaling. More serious to BPA, BPF induced apoptosis in macrophages. The apoptosis was induced by activating both sphingomyelin-ceramide signaling pathway and oxidative stress, which included intrinsic (bax and caspase-9) and extrinsic apoptotic pathways (tumor necrosis factor receptor 1, caspase-8, and caspase-3). BPF exposure also induced the proinflammatory phenotype of the macrophage. This alternation was shown to be closely correlated with the modulation of biosynthesis and degradation of glycerophospholipids. This study demonstrated novel evidence that BPF as a substituent of BPA induced immunotoxic effects at environmentally relevant concentrations. We also showed that the reprogramming of lipidome plays a key role in the regulation of macrophage polarization and the induction of immunotoxicity of the BPA analogue.
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Affiliation(s)
| | - Zhi Tang
- Shenzhen Center for Disease Control and Prevention , Shenzhen 518055 , China
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Warth B, Preindl K, Manser P, Wick P, Marko D, Buerki-Thurnherr T. Transfer and Metabolism of the Xenoestrogen Zearalenone in Human Perfused Placenta. ENVIRONMENTAL HEALTH PERSPECTIVES 2019; 127:107004. [PMID: 31596610 PMCID: PMC6867367 DOI: 10.1289/ehp4860] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
BACKGROUND Pregnancy is a sensitive condition during which adverse environmental exposures should be monitored thoroughly and minimized whenever possible. In particular, the hormone balance during gestation is delicate, and disturbance may cause acute or chronic long-term health effects. A potential endocrine disruption may be provoked by in utero exposure to xenoestrogens mimicking endogenous estrogens. The mycoestrogen zearalenone (ZEN), a toxic fungal secondary metabolite and mycotoxin found frequently in food and feed, constitutes a prominent example. OBJECTIVES We performed a comprehensive assessment of the transfer as well as phase I and phase II metabolism of ZEN at the human placental barrier. METHODS Human placentas were perfused with 1μM (318μg/L) ZEN for 6 h. Samples from the maternal and fetal compartment, placental tissue, and fetal plasma were analyzed by a highly sensitive UHPLC-MS/MS assay to detect ZEN as well as nine key metabolites (α-zearalenol, β-zearalenol, zearalanone, α-zearalanol, β-zearalanol, ZEN-14-glucuronide, α-zearalenol-14-glucuronide, β-zearalenol-14-glucuronide, ZEN-14-sulfate). RESULTS The model revealed a fast maternofetal transfer of ZEN across the human placental barrier. We also unraveled phase I and phase II metabolism of the parent toxin ZEN into the approximately 70-times more estrogenic α-zearalenol and the less active ZEN-14-sulfate conjugate, which are effectively released into the maternal and fetal circulation in considerable amounts. CONCLUSIONS Our findings suggest that exposure to ZEN (such as through consumption of ZEN-contaminated cereal-based products) during pregnancy may result in in utero exposure of the fetus, not only to ZEN but also some of its highly estrogenically active metabolites. In the light of the known affinity of ZEN and potentially co-occurring xenoestrogens to the estrogen receptor, and our results demonstrating placental transfer of ZEN and its metabolites in an ex vivo model, we recommend further research and more comprehensive assessment of gestational exposures in women. https://doi.org/10.1289/EHP4860.
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Affiliation(s)
- Benedikt Warth
- Department of Food Chemistry and Toxicology, Faculty of Chemistry, University of Vienna, Vienna, Austria
- Research Network Chemistry, Microbiology and Environmental Systems Science, University of Vienna, Vienna, Austria
| | - Karin Preindl
- Department of Food Chemistry and Toxicology, Faculty of Chemistry, University of Vienna, Vienna, Austria
| | - Pius Manser
- Laboratory for Particles-Biology Interactions, Empa, Swiss Federal Laboratories for Materials Science and Technology, St. Gallen, Switzerland
| | - Peter Wick
- Laboratory for Particles-Biology Interactions, Empa, Swiss Federal Laboratories for Materials Science and Technology, St. Gallen, Switzerland
| | - Doris Marko
- Department of Food Chemistry and Toxicology, Faculty of Chemistry, University of Vienna, Vienna, Austria
| | - Tina Buerki-Thurnherr
- Laboratory for Particles-Biology Interactions, Empa, Swiss Federal Laboratories for Materials Science and Technology, St. Gallen, Switzerland
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Khalis M, El Rhazi K, Fort E, Chajès V, Charaka H, Huybrechts I, Moskal A, Biessy C, Romieu I, Abbass F, El Marnissi B, Mellas N, Nejjari C, Soliman AS, Charbotel B. Occupation and risk of female breast cancer: A case-control study in Morocco. Am J Ind Med 2019; 62:838-846. [PMID: 31380573 DOI: 10.1002/ajim.23027] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/01/2019] [Indexed: 12/25/2022]
Abstract
BACKGROUND Breast cancer is the most frequent cancer among Moroccan women. Environmental and occupational factors may play a role in breast cancer etiology. This study aimed to investigate the association between occupation, industry, and breast cancer risk among Moroccan women. METHODS A total of 300 breast cancer cases and 300 controls (matched by age and area of residence) were included in this study. Full occupational history was collected, with a detailed description of each job held for at least 6 months. Occupations were coded according to the International Standard Classification of Occupations (ISCO 08) and the Moroccan Analytical Classification of Professions (2001). Industries were coded according to the Statistical Classification of Economic Activities in the European Community (2008). Odds ratios (ORs) and 95% confidence intervals (CIs), adjusted for potential confounders were estimated by using conditional logistic regression. RESULTS An overall decreased risk of breast cancer was observed among women doing only household work (OR = 0.32; 95% CI = 0.18-0.55). An increased risk of breast cancer was observed among women in agricultural occupations, particularly those employed as agricultural laborers (ISCO 08 code: 921; OR = 2.91; 95% CI = 1.51-5.60) and the risk increased with duration of employment (P trend = .01). Analyses by industry corroborated these findings. CONCLUSIONS Our findings suggest that occupational exposures may be associated with increased risk of breast cancer among female agricultural workers in this population. Further investigations, with advanced methods of occupational exposure assessment, are warranted to clarify the role of chemicals involved in this high-risk occupation and to suggest preventive actions and screening.
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Affiliation(s)
- Mohamed Khalis
- Department of Epidemiology, Faculty of Medicine and Pharmacy, Fez, Morocco
- IFSTTAR, UMRESTTE, UCBL, University of Lyon, Lyon, France
| | - Karima El Rhazi
- Department of Epidemiology, Faculty of Medicine and Pharmacy, Fez, Morocco
| | - Emmanuel Fort
- IFSTTAR, UMRESTTE, UCBL, University of Lyon, Lyon, France
| | - Véronique Chajès
- Nutrition and Metabolism Section, International Agency for Research on Cancer, Lyon, France
| | - Hafida Charaka
- Department of Research and Development, Hassan II University Hospital of Fez, Fez, Morocco
| | - Inge Huybrechts
- Nutrition and Metabolism Section, International Agency for Research on Cancer, Lyon, France
| | - Aurélie Moskal
- Nutrition and Metabolism Section, International Agency for Research on Cancer, Lyon, France
| | - Carine Biessy
- Nutrition and Metabolism Section, International Agency for Research on Cancer, Lyon, France
| | - Isabelle Romieu
- Nutrition and Metabolism Section, International Agency for Research on Cancer, Lyon, France
| | - Fouad Abbass
- Department of Research and Development, Hassan II University Hospital of Fez, Fez, Morocco
| | - Boujemaa El Marnissi
- Department of Research and Development, Hassan II University Hospital of Fez, Fez, Morocco
| | - Nawfel Mellas
- Department of Oncology, Hassan II University Hospital of Fez, Fez, Morocco
| | - Chakib Nejjari
- Department of Public Health, Mohammed VI University of Health Sciences, Casablanca, Morocco
| | - Amr S Soliman
- Department of Community Health and Social Medicine, City University of New York, New York, New York
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Jung N, Maguer-Satta V, Guyot B. Early Steps of Mammary Stem Cell Transformation by Exogenous Signals; Effects of Bisphenol Endocrine Disrupting Chemicals and Bone Morphogenetic Proteins. Cancers (Basel) 2019; 11:cancers11091351. [PMID: 31547326 PMCID: PMC6770465 DOI: 10.3390/cancers11091351] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 08/17/2019] [Accepted: 09/10/2019] [Indexed: 12/17/2022] Open
Abstract
Estrogens are major regulators of the mammary gland development, notably during puberty, via estrogen receptor (ER) activation, leading to the proliferation and differentiation of mammary cells. In addition to estrogens, the bone morphogenetic proteins (BMPs) family is involved in breast stem cell/progenitor commitment. However, these two pathways that synergistically contribute to the biology of the normal mammary gland have also been described to initiate and/or promote breast cancer development. In addition to intrinsic events, lifestyle habits and exposure to environmental cues are key risk factors for cancer in general, and especially for breast cancer. In the latter case, bisphenol A (BPA), an estrogen-mimetic compound, is a critical pollutant both in terms of the quantities released in our environment and of its known and speculated effects on mammary gland biology. In this review, we summarize the current knowledge on the actions of BMPs and estrogens in both normal mammary gland development and breast cancer initiation, dissemination, and resistance to treatment, focusing on the dysregulations of these processes by BPA but also by other bisphenols, including BPS and BPF, initially considered as safer alternatives to BPA.
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Affiliation(s)
- Nora Jung
- CNRS UMR5286, Centre de Recherche en Cancérologie de Lyon, F-69000 Lyon, France.
- Inserm U1052, Centre de Recherche en Cancérologie de Lyon, F-69000 Lyon, France.
- Université de Lyon, F-69000 Lyon, France.
- Department of Tumor Escape Signaling, Centre de Recherche en Cancérologie de Lyon, F-69000 Lyon, France.
- Institut des Sciences Pharmaceutiques et Biologiques, Université Lyon 1, F-69000 Lyon, France.
| | - Veronique Maguer-Satta
- CNRS UMR5286, Centre de Recherche en Cancérologie de Lyon, F-69000 Lyon, France.
- Inserm U1052, Centre de Recherche en Cancérologie de Lyon, F-69000 Lyon, France.
- Université de Lyon, F-69000 Lyon, France.
- Department of Tumor Escape Signaling, Centre de Recherche en Cancérologie de Lyon, F-69000 Lyon, France.
- Institut des Sciences Pharmaceutiques et Biologiques, Université Lyon 1, F-69000 Lyon, France.
| | - Boris Guyot
- CNRS UMR5286, Centre de Recherche en Cancérologie de Lyon, F-69000 Lyon, France.
- Inserm U1052, Centre de Recherche en Cancérologie de Lyon, F-69000 Lyon, France.
- Université de Lyon, F-69000 Lyon, France.
- Department of Tumor Escape Signaling, Centre de Recherche en Cancérologie de Lyon, F-69000 Lyon, France.
- Institut des Sciences Pharmaceutiques et Biologiques, Université Lyon 1, F-69000 Lyon, France.
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Preindl K, Braun D, Aichinger G, Sieri S, Fang M, Marko D, Warth B. A Generic Liquid Chromatography−Tandem Mass Spectrometry Exposome Method for the Determination of Xenoestrogens in Biological Matrices. Anal Chem 2019; 91:11334-11342. [DOI: 10.1021/acs.analchem.9b02446] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Karin Preindl
- University of Vienna, Faculty of Chemistry, Department of Food Chemistry and Toxicology, Währingerstraße 38, 1090 Vienna, Austria
| | - Dominik Braun
- University of Vienna, Faculty of Chemistry, Department of Food Chemistry and Toxicology, Währingerstraße 38, 1090 Vienna, Austria
| | - Georg Aichinger
- University of Vienna, Faculty of Chemistry, Department of Food Chemistry and Toxicology, Währingerstraße 38, 1090 Vienna, Austria
| | - Sabina Sieri
- Epidemiology and Prevention Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, 20133 Milan, Italy
| | - Mingliang Fang
- Nanyang Technological University, School of Civil and Environmental Engineering, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Doris Marko
- University of Vienna, Faculty of Chemistry, Department of Food Chemistry and Toxicology, Währingerstraße 38, 1090 Vienna, Austria
| | - Benedikt Warth
- University of Vienna, Faculty of Chemistry, Department of Food Chemistry and Toxicology, Währingerstraße 38, 1090 Vienna, Austria
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Gorowska-Wojtowicz E, Duliban M, Kudrycka M, Dutka P, Pawlicki P, Milon A, Zarzycka M, Placha W, Kotula-Balak M, Ptak A, Wolski JK, Bilinska B. Leydig cell tumorigenesis - implication of G-protein coupled membrane estrogen receptor, peroxisome proliferator-activated receptor and xenoestrogen exposure. In vivo and in vitro appraisal. Tissue Cell 2019; 61:51-60. [PMID: 31759407 DOI: 10.1016/j.tice.2019.08.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 07/18/2019] [Accepted: 08/06/2019] [Indexed: 12/29/2022]
Abstract
The etiology and molecular characteristics of Leydig cell tumor (LCT) are scarcely known. From the research data stems that estrogen can be implicated in LCT induction and development, however it is not investigated in detail. Considering the above, herein we analyzed the relation between G-protein coupled membrane estrogen receptor, peroxisome proliferator-activated receptor and insulin-like family peptides (insulin-like 3 peptide; INSL3 and relaxin; RLN) expressions as well as estrogen level with impact of xenoestrogen (bisphenol A; BPA, tetrabromobisphenol A; TBBPA, and tetrachlorobisphenol A; TCBPA). While in our previous studies altered GPER-PPAR partnership was found in human LCT being a possible cause and/or additionally effecting on LCT development, here mouse testes with experimentally induced LCT and mouse tumor Leydig cell (MA-10) treated with BPA chemicals were examined. We revealed either diverse changes in expression or co-expression of GPER and PPAR in mouse LCT as well as in MA-10 cells after BPA analogues when compared to human LCT. Relationships between expression of INSL3, RLN, including co-expression, and estrogen level in human LCT, mouse LCT and MA-10 cells xenoestrogen-treated were found. Moreover, involvement of PI3K-Akt-mTOR pathway or only mTOR in the interactions of examined receptors and hormones was showed. Taken together, species, cell of origin, experimental system used and type of used chemical differences may result in diverse molecular characteristics of LCT. Estrogen/xenoestrogen may play a role in tumor Leydig cell proliferation and biochemical nature but this issue requires further studies. Experimentally-induced LCT in mouse testis and MA-10 cells after BPA exposure seem to be additional models for understanding some aspects of human LCT biology.
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Affiliation(s)
- E Gorowska-Wojtowicz
- Department of Endocrinology, Institute of Zoology and Biomedical Research, Jagiellonian University in Kraków, Gronostajowa 9, 30-387 Krakow, Poland.
| | - M Duliban
- Department of Endocrinology, Institute of Zoology and Biomedical Research, Jagiellonian University in Kraków, Gronostajowa 9, 30-387 Krakow, Poland
| | - M Kudrycka
- Department of Endocrinology, Institute of Zoology and Biomedical Research, Jagiellonian University in Kraków, Gronostajowa 9, 30-387 Krakow, Poland
| | - P Dutka
- Department of Endocrinology, Institute of Zoology and Biomedical Research, Jagiellonian University in Kraków, Gronostajowa 9, 30-387 Krakow, Poland
| | - P Pawlicki
- Department of Endocrinology, Institute of Zoology and Biomedical Research, Jagiellonian University in Kraków, Gronostajowa 9, 30-387 Krakow, Poland
| | - A Milon
- Department of Endocrinology, Institute of Zoology and Biomedical Research, Jagiellonian University in Kraków, Gronostajowa 9, 30-387 Krakow, Poland
| | - M Zarzycka
- Chair of Medical Biochemistry Jagiellonian University Medical College, Kopernika 7, 31-034, Krakow, Poland
| | - W Placha
- Chair of Medical Biochemistry Jagiellonian University Medical College, Kopernika 7, 31-034, Krakow, Poland
| | - M Kotula-Balak
- University Centre of Veterinary Medicine, University of Agriculture in Krakow, Mickiewicza 24/28, 30-059, Krakow, Poland
| | - A Ptak
- Department of Physiology and Toxicology of Reproduction, Institute of Zoology and Biomedical Research, Jagiellonian University in Kraków, Gronostajowa 9, 30-387 Krakow, Poland
| | - J K Wolski
- nOvum Fertility Clinic, Bociania 13, 02-807 Warszawa, Poland
| | - B Bilinska
- Department of Endocrinology, Institute of Zoology and Biomedical Research, Jagiellonian University in Kraków, Gronostajowa 9, 30-387 Krakow, Poland
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Overexpression of TK1 and CDK9 in plasma-derived exosomes is associated with clinical resistance to CDK4/6 inhibitors in metastatic breast cancer patients. Breast Cancer Res Treat 2019; 178:57-62. [PMID: 31346846 DOI: 10.1007/s10549-019-05365-y] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Accepted: 07/15/2019] [Indexed: 12/21/2022]
Abstract
PURPOSE Cyclin-dependent kinase 4/6 inhibitors (CDK4/6i) improve progression-free survival (PFS) in patients with hormone receptor-positive (HR+) advanced breast cancer. However, a better knowledge of predictive biomarkers of response and resistance to CDK4/6i is needed. Therefore, the present article addresses the role of the mRNA expression of thymidine kinase 1 (TK1), CDK4, 6 and 9 in plasma-derived exosomes and their relevance in the pharmacologic activity of CDK4/6i. METHODS Blood samples of 40 HR+/HER2- advanced breast cancer patients were collected before (T0) the administration of palbociclib plus hormonal therapy and after 3 months (T1). RNA was isolated from exosomes and analysed for the expression of TK1, CDK 4, 6 and 9 by digital droplet PCR (ddPCR). RESULTS A higher value of TK1 copies/ml at baseline (T0) was significantly associated with the number of previous lines of chemotherapy (p = 0.009). In patients with PD, a significant increase was observed in the number of copies/ml of TK1 (p = 0.01) and CDK9 (p = 0.03) comparing T1 vs. T0 values. No significant correlations between response to treatment and clinical parameters were found at univariate analysis. High baseline CDK4 expression was significantly correlated with longer PFS in patients treated with fulvestrant + palbociclib (low versus high: 6.45 months vs. not reached, p = 0.01). CONCLUSIONS The present study demonstrates that, in plasma-derived exosomes, high baseline CDK4 mRNA levels are associated with response to palbociclib plus hormonal therapy, while the increase in TK1 and CDK9 mRNA copies/ml is associated with clinical resistance.
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Phase III evaluating the addition of fulvestrant (F) to anastrozole (A) as adjuvant therapy in postmenopausal women with hormone receptor-positive HER2-negative (HR+/HER2−) early breast cancer (EBC): results from the GEICAM/2006–10 study. Breast Cancer Res Treat 2019; 177:115-125. [DOI: 10.1007/s10549-019-05296-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Accepted: 05/24/2019] [Indexed: 10/26/2022]
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Xie M, Liang JL, Huang HD, Wang MJ, Zhang T, Yang XF. Low Doses of Nonylphenol Promote Growth of Colon Cancer Cells through Activation of ERK1/2 via G Protein‒Coupled Receptor 30. Cancer Res Treat 2019; 51:1620-1631. [PMID: 31096733 PMCID: PMC6790866 DOI: 10.4143/crt.2018.340] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Accepted: 04/12/2019] [Indexed: 01/21/2023] Open
Abstract
PURPOSE Nonylphenol (NP) is an endocrine disruptor found in products such as cleaners, plastics, and detergents. It exerts actions similar to endogenous 17β-estradiol (E2) and is reported to influence various cancers. However, its role in colon cancer remains elusive. Materials and Methods Colon cancer cell lines COLO 205 and SW480 were employed in our study. The cells were treated with NP or E2 followed by measurement of apoptosis and proliferation using flow cytometry and MTT assays, respectively. G protein-coupled estrogen receptor 30 (GPR30) expression was visualized using immunofluorescence and Western blot. To investigate the underlying mechanism, the expression levels of GPR30, p-protein kinase A (PKA), c-myc, cyclin D1, and ERK1/2 were analyzed using Western blot. Meanwhile, the GPR30 antagonist G15 was utilized to validate the role of GPR30 in colon cancer progression. Finally, the effect of a GPR30 inhibitor on tumor growth was determined in vivo using tumor xenograft mouse models. RESULTS NP facilitated the proliferation of colon cancer cells and induced apoptosis failure in vitro. Western blot revealed increased GPR30 expression levels in response to NP treatment. Cyclin D1, p-PKA, c-myc, and proliferating cell nuclear antigen, proteins that regulate the cell cycle, were all upregulated by NP, and NP-mediated ERK1/2 activation and subsequent cell proliferation were abrogated by the GPR30 inhibitor G15. Moreover, colon cancer mice that received G15 administration demonstrated impaired tumor growth in vivo. CONCLUSION Low dose NP promotes the growth of colon tumors through GPR30-mediated activation of ERK1/2 signaling.
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Affiliation(s)
- Ming Xie
- Department of Gastrointestinal Surgery, Affiliated Hospital of Zunyi Medical College, Zunyi, China
| | - Jin-Long Liang
- Department of Gastrointestinal Surgery, Affiliated Hospital of Zunyi Medical College, Zunyi, China
| | - Han-Dong Huang
- Department of Gastrointestinal Surgery, Affiliated Hospital of Zunyi Medical College, Zunyi, China
| | - Mai-Jian Wang
- Department of Gastrointestinal Surgery, Affiliated Hospital of Zunyi Medical College, Zunyi, China
| | - Tao Zhang
- Department of Gastrointestinal Surgery, Affiliated Hospital of Zunyi Medical College, Zunyi, China
| | - Xue-Feng Yang
- Department of Gastrointestinal Surgery, Affiliated Hospital of Zunyi Medical College, Zunyi, China
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Zhao C, Tang Z, Chung ACK, Wang H, Cai Z. Metabolic perturbation, proliferation and reactive oxygen species jointly contribute to cytotoxicity of human breast cancer cell induced by tetrabromo and tetrachloro bisphenol A. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 170:495-501. [PMID: 30557707 DOI: 10.1016/j.ecoenv.2018.12.018] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2018] [Revised: 12/02/2018] [Accepted: 12/08/2018] [Indexed: 06/09/2023]
Abstract
Halogenated bisphenol A analogues (X-BPA) have been widely used in industrial production, such as flame retardant. Although BPA exposure was found to result in cytotoxicity, toxicity of X-BPA and molecular mechanism remain under-explored. In this study, we employed human breast cancer cell as a model to investigate the concentration-dependent toxicity and underlying mechanisms of tetrabromo bisphenol A (TBBPA) and tetrachloro bisphenol A (TCBPA). An integrated method involving molecular toxicology and mass spectrometry (MS)-based global metabolomics was applied to evaluate the toxicity of TCBPA and TBBPA on cell viability, reactive oxygen species (ROS), and metabolic alterations. The results demonstrated that low micromolar levels (0-10 μM) of TCBPA/TBBPA exposure induced cell proliferation and activated the energy metabolism of both glycolysis and amino acid. On the other hand, high micromolar levels (10-50 μM) of TCBPA/TBBPA exposure perturbed the balance between ROS and antioxidative defense process by promoting the ROS generation via the down-regulation of glutathione biosynthesis and up-regulation of nucleotide metabolism. This study, for the first time, provides evidence and mechanism for better understanding the cytotoxicity of TCBPA and TBBPA by regulating the specific metabolic pathways.
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Affiliation(s)
- Chao Zhao
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China
| | - Zhi Tang
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Arthur Chi Kong Chung
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong, China
| | - Hailin Wang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China
| | - Zongwei Cai
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong, China.
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Sanchez SS, Tachachartvanich P, Stanczyk FZ, Gomez SL, John EM, Smith MT, Fejerman L. Estrogenic activity, race/ethnicity, and Indigenous American ancestry among San Francisco Bay Area women. PLoS One 2019; 14:e0213809. [PMID: 30908519 PMCID: PMC6433244 DOI: 10.1371/journal.pone.0213809] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Accepted: 02/28/2019] [Indexed: 01/14/2023] Open
Abstract
Estrogens play a significant role in breast cancer development and are not only produced endogenously, but are also mimicked by estrogen-like compounds from environmental exposures. We evaluated associations between estrogenic (E) activity, demographic factors and breast cancer risk factors in Non-Latina Black (NLB), Non-Latina White (NLW), and Latina women. We examined the association between E activity and Indigenous American (IA) ancestry in Latina women. Total E activity was measured with a bioassay in plasma samples of 503 women who served as controls in the San Francisco Bay Area Breast Cancer Study. In the univariate model that included all women with race/ethnicity as the independent predictor, Latinas had 13% lower E activity (p = 0.239) and NLBs had 35% higher activity (p = 0.04) compared to NLWs. In the multivariable model that adjusted for demographic factors, Latinas continued to show lower E activity levels (26%, p = 0.026), but the difference between NLBs and NLWs was no longer statistically significant (p = 0.431). An inverse association was observed between E activity and IA ancestry among Latina women (50% lower in 0% vs. 100% European ancestry, p = 0.027) consistent with our previously reported association between IA ancestry and breast cancer risk. These findings suggest that endogenous estrogens and exogenous estrogen-like compounds that act on the estrogen receptor and modulate E activity may partially explain racial/ethnic differences in breast cancer risk.
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Affiliation(s)
- Sylvia S. Sanchez
- Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, Berkeley, California, United States of America
| | - Phum Tachachartvanich
- Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, Berkeley, California, United States of America
| | - Frank Z. Stanczyk
- Department of Obstetrics and Gynecology, Keck School of Medicine, University of Southern California, Los Angeles, California, United States of America
| | - Scarlett L. Gomez
- Department of Medicine, Division of Oncology and Stanford Cancer Institute, Stanford School of Medicine, Stanford, California, United States of America
- Department of Epidemiology and Biostatistics, Helen Diller Comprehensive Cancer Center, University of California, San Francisco, San Francisco, California, United States of America
| | - Esther M. John
- Department of Medicine, Division of Oncology and Stanford Cancer Institute, Stanford School of Medicine, Stanford, California, United States of America
| | - Martyn T. Smith
- Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, Berkeley, California, United States of America
| | - Laura Fejerman
- Division of General Internal Medicine, Institute of Human Genetics, Helen Diller Comprehensive Cancer Center and Department of Medicine, University of California, San Francisco, San Francisco, California, United States of America
- * E-mail:
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46
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Yu X, Fuller AM, Blackmon R, Troester MA, Oldenburg AL. Quantification of the Effect of Toxicants on the Intracellular Kinetic Energy and Cross-Sectional Area of Mammary Epithelial Organoids by OCT Fluctuation Spectroscopy. Toxicol Sci 2019; 162:234-240. [PMID: 29140506 DOI: 10.1093/toxsci/kfx245] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The ability to assess toxicant exposures of 3D in vitro mammary models that recapitulate the tissue microenvironment can aid in our understanding of environmental exposure risk over time. Longitudinal studies of 3D model systems, however, are cumbersome and suffer from a lack of high-throughput toxicological assays. In this study, we establish a noninvasive and label-free optical coherence tomography (OCT)-based imaging platform for tracking exposure-response relationships in 3D human mammary epithelial organoid models. The OCT-based assay includes metrics that quantify organoid intracellular kinetic energy and cross-sectional area (CSA). We compare the results to those obtained using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-2H-tetrazolium bromide (MTT) mitochondrial dye conversion assay. Both estrogen receptor (ER)-positive (MCF7) and ER-negative (MCF10DCIS.com) breast cell lines were studied, beginning one hour after exposure and continuing for several days. Six days of exposure to 17β-estradiol or the selective ER modulator 4-hydroxytamoxifen respectively increased or decreased MCF7 organoid CSA (p < .01), consistent with the role of estrogen signaling in ER-positive mammary epithelial cell proliferation. We also observed a significant decrease in the intracellular kinetic energy of MCF10DCIS.com organoids after 24 h of exposure to doxorubicin, a cytotoxic intercalating agent that causes DNA double-strand breaks (p < .01). MTT-based metabolic activity of MCF10DCIS.com organoids after 48 h of doxorubicin exposure decreased with dose in a similar manner as OCT-based energy metrics. These results demonstrate the feasibility of an OCT-based assay to quantify mammary epithelial cell toxicant response in vitro, noninvasively, longitudinally, and in the context of tissue microenvironments, providing a new high-throughput screening tool for toxicological studies.
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Affiliation(s)
- Xiao Yu
- Biomedical Research Imaging Center
| | | | | | - Melissa A Troester
- Department of Epidemiology, Gillings School of Public Health
- Lineberger Comprehensive Cancer Center, The University of North Carolina, Chapel Hill, North Carolina 27599
| | - Amy L Oldenburg
- Biomedical Research Imaging Center
- Department of Physics and Astronomy
- Lineberger Comprehensive Cancer Center, The University of North Carolina, Chapel Hill, North Carolina 27599
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47
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Singe nucleotide polymorphisms in osteosarcoma: Pathogenic effect and prognostic significance. Exp Mol Pathol 2019; 106:63-77. [DOI: 10.1016/j.yexmp.2018.12.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2018] [Revised: 08/14/2018] [Accepted: 12/05/2018] [Indexed: 12/26/2022]
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48
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Yakimchuk K, Bangalore Revanna C, Huang D, Inzunza J, Okret S. Suppression of lymphoma growth by the xenoestrogens bisphenol A and genistein. Endocr Connect 2018; 7:1472-1479. [PMID: 30496125 PMCID: PMC6300865 DOI: 10.1530/ec-18-0459] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Accepted: 11/23/2018] [Indexed: 01/23/2023]
Abstract
Well-defined physiological functions of estrogens are mediated via nuclear estrogen receptors α (ESR1) and β (ESR2). With regard to hematological malignancies, expression of ESR2 has been found in both B and T cell lymphomas. In addition to endogenous estrogens or selective ESR2 agonists, ESR2 signaling may be affected by both environmental synthetic estrogen-mimicking compounds and dietary phytoestrogens. In the present study, we demonstrate that oral exposure with either the synthetic compound bisphenol A (BPA) or the dietary phytoestrogen genistein reduced the growth of grafted murine T cell (EG7) and human B cell (Granta-519 mantle cell) lymphomas which both express ESR2. Suppression of lymphoma growth was due to reduced proliferation (BPA and genistein) and induction of apoptosis (genistein). Inhibition of lymphoma growth was seen at a BPA dose of 50 µg/kg body weight (BW)/day considered to be safe human exposure dose or a genistein dose of 1 mg/kg BW/day orally, which is reached in soy-rich diets. Thus, our study indicates that the environmental xenoestrogens BPA and genistein have anti-proliferative effects on ESR2-expressing lymphomas. Our data suggest that phytoestrogens may be considered as a dietary supplement for lymphoma patients and possibly for prevention of lymphoid malignancies.
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Affiliation(s)
- Konstantin Yakimchuk
- Department of Biosciences and NutritionKarolinska Institutet, Neo, Huddinge, Sweden
- Correspondence should be addressed to K Yakimchuk:
| | | | - Dan Huang
- Department of Biosciences and NutritionKarolinska Institutet, Neo, Huddinge, Sweden
| | - Jose Inzunza
- Department of Biosciences and NutritionKarolinska Institutet, Neo, Huddinge, Sweden
| | - Sam Okret
- Department of Biosciences and NutritionKarolinska Institutet, Neo, Huddinge, Sweden
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Pouzaud F, Thierry-Mieg M, Burga K, Vérines-Jouin L, Fiore K, Beausoleil C, Michel C, Rousselle C, Pasquier E. Concerns related to ED-mediated effects of Bisphenol A and their regulatory consideration. Mol Cell Endocrinol 2018; 475:92-106. [PMID: 29428396 DOI: 10.1016/j.mce.2018.02.002] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Revised: 01/25/2018] [Accepted: 02/05/2018] [Indexed: 12/21/2022]
Abstract
The extensive database on BPA provides strong evidence of its adverse effects on reproductive, neurobehavioural, metabolic functions and mammary gland. Disruption of estrogenic pathway is central in the mediation of these effects although other modes of action may be involved. BPA has a weak affinity for ERα/β but interaction with extranuclearly located pathways activated by estrogens such as ERRγ and GPER reveals how BPA can act at low doses. The effects are observed later in life after developmental exposure and are associated with pathologies of major societal concern in terms of severity, incidence, impact on quality of life, burden on public health system. The complexity of the dose response raise uncertainties on the possibility to establish safe levels and the scope of ED-mediated effects of BPA may be wider. These concerns fulfill the requirements for ED identification under REACH regulation.
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Affiliation(s)
| | | | - Karen Burga
- ANSES, Risk Assessment Department, Maisons-Alfort, France
| | | | - Karine Fiore
- ANSES, Risk Assessment Department, Maisons-Alfort, France
| | | | - Cécile Michel
- ANSES, Risk Assessment Department, Maisons-Alfort, France
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50
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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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