1
|
Egalini F, Marinelli L, Rossi M, Motta G, Prencipe N, Rossetto Giaccherino R, Pagano L, Grottoli S, Giordano R. Endocrine disrupting chemicals: effects on pituitary, thyroid and adrenal glands. Endocrine 2022; 78:395-405. [PMID: 35604630 PMCID: PMC9637063 DOI: 10.1007/s12020-022-03076-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Accepted: 05/08/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND In recent years, scientific research has increasingly focused on Endocrine Disrupting Chemicals (EDCs) and demonstrated their relevant role in the functional impairment of endocrine glands. This induced regulatory authorities to ban some of these compounds and to carefully investigate others in order to prevent EDCs-related conditions. As a result, we witnessed a growing awareness and interest on this topic. AIMS This paper aims to summarize current evidence regarding the detrimental effects of EDCs on pivotal endocrine glands like pituitary, thyroid and adrenal ones. Particularly, we directed our attention on the known and the hypothesized mechanisms of endocrine dysfunction brought by EDCs. We also gave a glimpse on recent findings from pioneering studies that could in the future shed a light on the pathophysiology of well-known, but poorly understood, endocrine diseases like hormone-producing adenomas. CONCLUSIONS Although intriguing, studies on endocrine dysfunctions brought by EDCs are challenging, in particular when investigating long-term effects of EDCs on humans. However, undoubtedly, it represents a new intriguing field of science research.
Collapse
Affiliation(s)
- Filippo Egalini
- Endocrinology, Diabetes and Metabolism, Department of Medical Sciences, University of Turin, Corso Dogliotti 14, 10126, Turin, Italy.
| | - Lorenzo Marinelli
- Endocrinology, Diabetes and Metabolism, Department of Medical Sciences, University of Turin, Corso Dogliotti 14, 10126, Turin, Italy
| | - Mattia Rossi
- Endocrinology, Diabetes and Metabolism, Department of Medical Sciences, University of Turin, Corso Dogliotti 14, 10126, Turin, Italy
| | - Giovanna Motta
- Endocrinology, Diabetes and Metabolism, Department of Medical Sciences, University of Turin, Corso Dogliotti 14, 10126, Turin, Italy
| | - Nunzia Prencipe
- Endocrinology, Diabetes and Metabolism, Department of Medical Sciences, University of Turin, Corso Dogliotti 14, 10126, Turin, Italy
| | - Ruth Rossetto Giaccherino
- Endocrinology, Diabetes and Metabolism, Department of Medical Sciences, University of Turin, Corso Dogliotti 14, 10126, Turin, Italy
| | - Loredana Pagano
- Endocrinology, Diabetes and Metabolism, Department of Medical Sciences, University of Turin, Corso Dogliotti 14, 10126, Turin, Italy
| | - Silvia Grottoli
- Endocrinology, Diabetes and Metabolism, Department of Medical Sciences, University of Turin, Corso Dogliotti 14, 10126, Turin, Italy
| | - Roberta Giordano
- Endocrinology, Diabetes and Metabolism, Department of Medical Sciences, University of Turin, Corso Dogliotti 14, 10126, Turin, Italy
- Department of Biological and Clinical Science, University of Turin, Regione Gonzole 10, 10043, Orbassano (TO), Italy
| |
Collapse
|
2
|
Xu H, Su J, Ku T, Liu QS, Liang J, Ren Z, Zhou Q, Jiang G. Constructing an MCF-7 breast cancer cell-based transient transfection assay for screening RARα (Ant)agonistic activities of emerging phenolic compounds. JOURNAL OF HAZARDOUS MATERIALS 2022; 435:129024. [PMID: 35523094 DOI: 10.1016/j.jhazmat.2022.129024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 04/23/2022] [Accepted: 04/25/2022] [Indexed: 06/14/2023]
Abstract
The screening of compounds with endocrine disrupting effects has been attracting increasing attention due to the continuous release of emerging chemicals into the environment. Testing the (ant)agonistic activities of these chemicals on the retinoic acid receptor α (RARα), a vital nuclear receptor, is necessary to explain their perturbation in the endocrine system in vivo. In the present study, MCF-7 breast carcinoma cells were transiently transfected with a RARα expression vector (pEF1α-RARα-RFP) and a reporter vector containing a retinoic acid reaction element (pRARE-TA-Luc). Under optimized conditions, the performance of the newly constructed system was evaluated for its feasibility in screening the (ant)agonistic effects of emerging phenolic compounds on RARα. The results showed that this transient transfection cell model responded well to stimulation with (ant)agonists of RARα, and the EC50 and IC50 values were 0.87 nM and 2.67 μM for AM580 and Ro41-5253, respectively. Its application in testing several emerging phenolic compounds revealed that triclosan (TCS) and tetrabromobisphenol A (TBBPA) exerted notable RARα antagonistic activities. This newly developed bioassay based on MCF-7 is promising in identifying the agonistic or antagonistic activities of xenobiotics on RARα and has good potential for studying RARα signaling-involved toxicological effects of emerging chemicals of concern.
Collapse
Affiliation(s)
- Hanqing Xu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; National and Local Joint Engineering Research Center of Ecological Treatment Technology for Urban Water Pollution, Wenzhou University, Wenzhou 325035, China
| | - Jiahui Su
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Tingting Ku
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Environment and Resources, Research Center of Environment and Health, Shanxi University, Taiyuan 030006, China
| | - Qian S Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Jiefeng Liang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; Sino-Danish College, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhihua Ren
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qunfang Zhou
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China; Institute of Environment and Health, Jianghan University, Wuhan 430056, China.
| | - Guibin Jiang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| |
Collapse
|
3
|
Bisphenols as Environmental Triggers of Thyroid Dysfunction: Clues and Evidence. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17082654. [PMID: 32294918 PMCID: PMC7216215 DOI: 10.3390/ijerph17082654] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 04/09/2020] [Accepted: 04/10/2020] [Indexed: 12/25/2022]
Abstract
Bisphenols (BPs), and especially bisphenol A (BPA), are known endocrine disruptors (EDCs), capable of interfering with estrogen and androgen activities, as well as being suspected of other health outcomes. Given the crucial role of thyroid hormones and the increasing incidence of thyroid carcinoma in the last few decades, this review analyzes the effects of BPS on the thyroid, considering original research in vitro, in vivo, and in humans published from January 2000 to October 2019. Both in vitro and in vivo studies reported the ability of BPs to disrupt thyroid function through multiple mechanisms. The antagonism with thyroid receptors (TRs), which affects TR-mediated transcriptional activity, the direct action of BPs on gene expression at the thyroid and the pituitary level, the competitive binding with thyroid transport proteins, and the induction of toxicity in several cell lines are likely the main mechanisms leading to thyroid dysfunction. In humans, results are more contradictory, though some evidence suggests the potential of BPs in increasing the risk of thyroid nodules. A standardized methodology in toxicological studies and prospective epidemiological studies with individual exposure assessments are warranted to evaluate the pathophysiology resulting in the damage and to establish the temporal relationship between markers of exposure and long-term effects.
Collapse
|
4
|
Kwon HA, Jeong Y, Jeon HP, Kim S. Comparing passive dosing and solvent spiking methods to determine the acute toxic effect of pentachlorophenol on Daphnia magna. ECOTOXICOLOGY (LONDON, ENGLAND) 2020; 29:286-294. [PMID: 32124145 DOI: 10.1007/s10646-020-02172-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/30/2020] [Indexed: 06/10/2023]
Abstract
Pentachlorophenol (PCP) is a widespread and persistent hydrophobic organic pollutant in the environment despite its restricted public use. Risk assessment of such hydrophobic organic compounds (HOCs) is challenging because sorption and volatilization issues during toxicity test often lead to inconsistent exposure concentration. Considering the hydrophobicity of the PCP, in this study, a passive dosing format was applied by adopting a silicone O-ring as a reservoir and evaluated its applicability on the determination of PCP on Daphnia magna. Results obtained with passive dosing method were compared with that of solvent spiking method. We hypothesized that the passive dosing method may provide more reliable and accurate toxicity results than conventional solvent spiking approach. As a result, the partition coefficient of PCP between methanol and a test medium (log KMeOH:ISO) was 2.1, which enabled the maintenance of reliable exposure concentration throughout the experiment. In the acute toxicity tests, passive dosing and solvent spiking showed similar EC50 values of 576 and 485 µg/L for 24 h, and 362 and 374 µg/L for 48 h, respectively, which overlap with EC50 values of previous studies. Altogether, both methods were suitable for the acute toxicity assessment of hydrophobic PCP.
Collapse
Affiliation(s)
- Hyun-Ah Kwon
- Environmental Safety Group, KIST Europe, Korea Institute of Science and Technology, Campus E7.1, 66123, Saarbrücken, Germany
- Division of Energy & Environment Technology, University of Science and Technology, Daejeon, 34113, Korea
| | - Yoonah Jeong
- Environmental Safety Group, KIST Europe, Korea Institute of Science and Technology, Campus E7.1, 66123, Saarbrücken, Germany
- Institute for Environmental Research, RWTH Aachen University, Worringerweg 1, 52076, Aachen, Germany
- Department of Land, Water and Environment Research, Korea Institute of Civil Engineering and Building Technology, Daehwa-Dong 283, Goyangdae-Ro, Ilsanseo-Gu, Goyang-Si, Gyeonggi-Do, 10223, Korea
| | - Hyun Pyo Jeon
- Environmental Safety Group, KIST Europe, Korea Institute of Science and Technology, Campus E7.1, 66123, Saarbrücken, Germany
| | - Sanghun Kim
- Environmental Safety Group, KIST Europe, Korea Institute of Science and Technology, Campus E7.1, 66123, Saarbrücken, Germany.
- Division of Energy & Environment Technology, University of Science and Technology, Daejeon, 34113, Korea.
- Department of Pharmaceutical Science and Technology, Kyungsung University, 309, Suyeong-ro, Nam-gu, Busan, 48434, Korea.
| |
Collapse
|
5
|
Johansson HK, Boberg J, Dybdahl M, Axelstad M, Vinggaard AM. Chemical risk assessment based on in vitro and human biomonitoring data: A case study on thyroid toxicants. CURRENT OPINION IN TOXICOLOGY 2019. [DOI: 10.1016/j.cotox.2018.12.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
|
6
|
García-Herranz V, Valdehita A, Navas J, Fernández-Cruz M. Cytotoxicity against fish and mammalian cell lines and endocrine activity of the mycotoxins beauvericin, deoxynivalenol and ochratoxin-A. Food Chem Toxicol 2019; 127:288-297. [DOI: 10.1016/j.fct.2019.01.036] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Revised: 01/10/2019] [Accepted: 01/29/2019] [Indexed: 12/15/2022]
|
7
|
Barjhoux I, Fechner LC, Lebrun JD, Anzil A, Ayrault S, Budzinski H, Cachot J, Charron L, Chaumot A, Clérandeau C, Dedourge-Geffard O, Faburé J, François A, Geffard O, George I, Labadie P, Lévi Y, Munoz G, Noury P, Oziol L, Quéau H, Servais P, Uher E, Urien N, Geffard A. Application of a multidisciplinary and integrative weight-of-evidence approach to a 1-year monitoring survey of the Seine River. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:23404-23429. [PMID: 27272921 DOI: 10.1007/s11356-016-6993-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Accepted: 05/26/2016] [Indexed: 06/06/2023]
Abstract
Quality assessment of environments under high anthropogenic pressures such as the Seine Basin, subjected to complex and chronic inputs, can only be based on combined chemical and biological analyses. The present study integrates and summarizes a multidisciplinary dataset acquired throughout a 1-year monitoring survey conducted at three workshop sites along the Seine River (PIREN-Seine program), upstream and downstream of the Paris conurbation, during four seasonal campaigns using a weight-of-evidence approach. Sediment and water column chemical analyses, bioaccumulation levels and biomarker responses in caged gammarids, and laboratory (eco)toxicity bioassays were integrated into four lines of evidence (LOEs). Results from each LOE clearly reflected an anthropogenic gradient, with contamination levels and biological effects increasing from upstream to downstream of Paris, in good agreement with the variations in the structure and composition of bacterial communities from the water column. Based on annual average data, the global hazard was summarized as "moderate" at the upstream station and as "major" at the two downstream ones. Seasonal variability was also highlighted; the winter campaign was least impacted. The model was notably improved using previously established reference and threshold values from national-scale studies. It undoubtedly represents a powerful practical tool to facilitate the decision-making processes of environment managers within the framework of an environmental risk assessment strategy.
Collapse
Affiliation(s)
- Iris Barjhoux
- UMR-I 02 Stress Environnementaux et Biosurveillance des milieux aquatiques (SEBIO), UFR SEN, Université de Reims Champagne-Ardenne, Moulin de la Housse, BP 1039, Reims, France.
| | - Lise C Fechner
- UR Hydrosystèmes et bioprocédés Antony (HBAN), Irstea, 1 rue Pierre-Gilles de Gennes, CS 10030, 97261, Antony Cedex, France
- AgroParisTech, 75005, Paris, France
| | - Jérémie D Lebrun
- UR Hydrosystèmes et bioprocédés Antony (HBAN), Irstea, 1 rue Pierre-Gilles de Gennes, CS 10030, 97261, Antony Cedex, France
| | - Adriana Anzil
- Laboratoire Ecologie des Systèmes Aquatiques (ESA), Université Libre de Bruxelles, Brussels, Belgium
| | - Sophie Ayrault
- UMR 8212 CNRS CEA UVSQ Laboratoire des Sciences du Climat et de l'Environnement (LSCE), Institut Pierre Simon Laplace (IPSL), Gif-sur-Yvette, France
| | - Hélène Budzinski
- UMR 5805 Environnements et Paléoenvironnements Océaniques et Continentaux (EPOC), Université de Bordeaux, Pessac, France
| | - Jérôme Cachot
- UMR 5805 Environnements et Paléoenvironnements Océaniques et Continentaux (EPOC), Université de Bordeaux, Pessac, France
| | - Laetitia Charron
- UMR-I 02 Stress Environnementaux et Biosurveillance des milieux aquatiques (SEBIO), UFR SEN, Université de Reims Champagne-Ardenne, Moulin de la Housse, BP 1039, Reims, France
| | - Arnaud Chaumot
- UR Milieux Aquatiques, Ecologie et Pollutions (MAEP), Laboratoire d'écotoxicologie, Irstea, Villeurbanne, France
| | - Christelle Clérandeau
- UMR 5805 Environnements et Paléoenvironnements Océaniques et Continentaux (EPOC), Université de Bordeaux, Pessac, France
| | - Odile Dedourge-Geffard
- UMR-I 02 Stress Environnementaux et Biosurveillance des milieux aquatiques (SEBIO), UFR SEN, Université de Reims Champagne-Ardenne, Moulin de la Housse, BP 1039, Reims, France
| | - Juliette Faburé
- UR Hydrosystèmes et bioprocédés Antony (HBAN), Irstea, 1 rue Pierre-Gilles de Gennes, CS 10030, 97261, Antony Cedex, France
- AgroParisTech, 75005, Paris, France
| | - Adeline François
- UR Milieux Aquatiques, Ecologie et Pollutions (MAEP), Laboratoire d'écotoxicologie, Irstea, Villeurbanne, France
| | - Olivier Geffard
- UR Milieux Aquatiques, Ecologie et Pollutions (MAEP), Laboratoire d'écotoxicologie, Irstea, Villeurbanne, France
| | - Isabelle George
- Laboratoire Ecologie des Systèmes Aquatiques (ESA), Université Libre de Bruxelles, Brussels, Belgium
| | - Pierre Labadie
- UMR 5805 Environnements et Paléoenvironnements Océaniques et Continentaux (EPOC), Université de Bordeaux, Pessac, France
| | - Yves Lévi
- Ecologie Systématique Evolution, University Paris-Sud, CNRS, AgroParisTech, Université Paris-Saclay, Orsay, France
| | - Gabriel Munoz
- UMR 5805 Environnements et Paléoenvironnements Océaniques et Continentaux (EPOC), Université de Bordeaux, Pessac, France
| | - Patrice Noury
- UR Milieux Aquatiques, Ecologie et Pollutions (MAEP), Laboratoire d'écotoxicologie, Irstea, Villeurbanne, France
| | - Lucie Oziol
- Ecologie Systématique Evolution, University Paris-Sud, CNRS, AgroParisTech, Université Paris-Saclay, Orsay, France
| | - Hervé Quéau
- UR Milieux Aquatiques, Ecologie et Pollutions (MAEP), Laboratoire d'écotoxicologie, Irstea, Villeurbanne, France
| | - Pierre Servais
- Laboratoire Ecologie des Systèmes Aquatiques (ESA), Université Libre de Bruxelles, Brussels, Belgium
| | - Emmanuelle Uher
- UR Hydrosystèmes et bioprocédés Antony (HBAN), Irstea, 1 rue Pierre-Gilles de Gennes, CS 10030, 97261, Antony Cedex, France
| | - Nastassia Urien
- UR Hydrosystèmes et bioprocédés Antony (HBAN), Irstea, 1 rue Pierre-Gilles de Gennes, CS 10030, 97261, Antony Cedex, France
| | - Alain Geffard
- UMR-I 02 Stress Environnementaux et Biosurveillance des milieux aquatiques (SEBIO), UFR SEN, Université de Reims Champagne-Ardenne, Moulin de la Housse, BP 1039, Reims, France
| |
Collapse
|
8
|
NTP Research Report on Biological Activity of Bisphenol A (BPA) Structural Analogues and Functional Alternatives. ACTA ACUST UNITED AC 2017. [DOI: 10.22427/ntp-rr-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
9
|
Oziol L, Alliot F, Botton J, Bimbot M, Huteau V, Levi Y, Chevreuil M. First characterization of the endocrine-disrupting potential of indoor gaseous and particulate contamination: comparison with urban outdoor air (France). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:3142-3152. [PMID: 27858277 DOI: 10.1007/s11356-016-8045-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Accepted: 11/03/2016] [Indexed: 06/06/2023]
Abstract
The composition of endocrine-disrupting compounds (EDCs) in the ambient air of indoor environments has already been described, but little is known about the inherent endocrine-disrupting potential of indoor air contamination. We therefore aimed to study the distribution of bioactive EDCs in the gaseous and particulate phases of indoor air using a cellular bioassay approach that integrates the interaction effects between chemicals. Organic air extracts, both gaseous and particulate, were taken from three indoor locations (office, apartment, and children's day care) in France and sampled in two different seasons in order to study their interference with the signaling of estrogen, androgen, and thyroid receptors. The experiments were also conducted on aerial extracts from an outdoor site (urban center). We found that gaseous and/or particulate extracts from all locations displayed estrogenicity, anti-androgenicity, and thyroidicity. Overall, indoor air extracts had a higher endocrine-disrupting potential compared to outdoor ones, especially during winter and in the day care. The biological activities were predominant for the gaseous extracts and tended to increase for the particulate extracts in cool conditions. In conclusion, our data confirmed the presence of bioactive EDCs in a gaseous state and highlighted their indoor origin and concentration, especially in the cold season.
Collapse
Affiliation(s)
- Lucie Oziol
- Ecologie Systématique Evolution, University of Paris-Sud, CNRS, AgroParisTech, Université Paris-Saclay, 91400, Orsay, France.
- University of Paris-Sud, Université Paris-Saclay, 92296, Châtenay-Malabry, France.
| | - Fabrice Alliot
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, EPHE, UMR 7619 Metis, 4 place Jussieu, 75005, Paris, France
| | - Jérémie Botton
- INSERM, UMR1153 Epidemiology and Biostatistics Sorbonne Paris Cité Center (CRESS), Team "Early Origin of the Child's Health and Development" (ORCHAD), Paris Descartes University, Paris, France
- University of Paris-Sud, Université Paris-Saclay, 92296, Châtenay-Malabry, France
| | - Maya Bimbot
- Ecologie Systématique Evolution, University of Paris-Sud, CNRS, AgroParisTech, Université Paris-Saclay, 91400, Orsay, France
- University of Paris-Sud, Université Paris-Saclay, 92296, Châtenay-Malabry, France
| | - Viviane Huteau
- Ecologie Systématique Evolution, University of Paris-Sud, CNRS, AgroParisTech, Université Paris-Saclay, 91400, Orsay, France
- University of Paris-Sud, Université Paris-Saclay, 92296, Châtenay-Malabry, France
| | - Yves Levi
- Ecologie Systématique Evolution, University of Paris-Sud, CNRS, AgroParisTech, Université Paris-Saclay, 91400, Orsay, France
- University of Paris-Sud, Université Paris-Saclay, 92296, Châtenay-Malabry, France
| | - Marc Chevreuil
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, EPHE, UMR 7619 Metis, 4 place Jussieu, 75005, Paris, France
| |
Collapse
|
10
|
Zhang Y, Li Y, Qin Z, Wang H, Li J. A screening assay for thyroid hormone signaling disruption based on thyroid hormone-response gene expression analysis in the frog Pelophylax nigromaculatus. J Environ Sci (China) 2015; 34:143-154. [PMID: 26257357 DOI: 10.1016/j.jes.2015.01.028] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2014] [Revised: 12/30/2014] [Accepted: 01/16/2015] [Indexed: 06/04/2023]
Abstract
Amphibian metamorphosis provides a wonderful model to study the thyroid hormone (TH) signaling disrupting activity of environmental chemicals, with Xenopus laevis as the most commonly used species. This study aimed to establish a rapid and sensitive screening assay based on TH-response gene expression analysis using Pelophylax nigromaculatus, a native frog species distributed widely in East Asia, especially in China. To achieve this, five candidate TH-response genes that were sensitive to T3 induction were chosen as molecular markers, and T3 induction was determined as 0.2 nmol/L T3 exposure for 48 hr. The developed assay can detect the agonistic activity of T3 with a lowest observed effective concentration of 0.001 nmol/L and EC50 at around 0.118-1.229 nmol/L, exhibiting comparable or higher sensitivity than previously reported assays. We further validated the efficiency of the developed assay by detecting the TH signaling disrupting activity of tetrabromobisphenol A (TBBPA), a known TH signaling disruptor. In accordance with previous reports, we found a weak TH agonistic activity for TBBPA in the absence of T3, whereas a TH antagonistic activity was found for TBBPA at higher concentrations in the presence of T3, showing that the P. nigromaculatus assay is effective for detecting TH signaling disrupting activity. Importantly, we observed non-monotonic dose-dependent disrupting activity of TBBPA in the presence of T3, which is difficult to detect with in vitro reporter gene assays. Overall, the developed P. nigromaculatus assay can be used to screen TH signaling disrupting activity of environmental chemicals with high sensitivity.
Collapse
Affiliation(s)
- Yinfeng Zhang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.; Department of Environmental Bio-Technology, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
| | - Yuanyuan Li
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Zhanfen Qin
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China..
| | - Huili Wang
- Department of Environmental Bio-Technology, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
| | - Jianzhong Li
- Department of Environmental Bio-Technology, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| |
Collapse
|
11
|
Grimaldi M, Boulahtouf A, Delfosse V, Thouennon E, Bourguet W, Balaguer P. Reporter Cell Lines for the Characterization of the Interactions between Human Nuclear Receptors and Endocrine Disruptors. Front Endocrinol (Lausanne) 2015; 6:62. [PMID: 26029163 PMCID: PMC4426785 DOI: 10.3389/fendo.2015.00062] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Accepted: 04/09/2015] [Indexed: 01/11/2023] Open
Abstract
Endocrine-disrupting chemicals (EDCs) are exogenous substances interfering with hormone biosynthesis, metabolism, or action, and consequently causing disturbances in the endocrine system. Various pathways are activated by EDCs, including interactions with nuclear receptors (NRs), which are primary targets of numerous environmental contaminants. The main NRs targeted by environmental contaminants are the estrogen (ER α, β) and the androgen (AR) receptors. ERs and AR have pleiotropic regulatory roles in a diverse range of tissues, notably in the mammary gland, the uterus, and the prostate. Thus, dysfunctional ERs and AR signaling due to inappropriate exposure to environmental pollutants may lead to hormonal cancers and infertility. The pregnane X receptor (PXR) is also recognized by many environmental molecules. PXR has a protective role of the body through its ability to regulate proteins involved in the metabolism, the conjugation, and the transport of many exogenous and endogenous compounds. However, the permanent activation of this receptor by xenobiotics may lead to premature drug metabolism, the formation, and accumulation of toxic metabolites and defects in hormones homeostasis. The activity of other NRs can also be affected by environmental molecules. Compounds capable of inhibiting or activating the estrogen related (ERRγ), the thyroid hormone (TRα, β), the retinoid X receptors (RXRα, β, γ), and peroxisome proliferator-activated (PPAR α, γ) receptors have been identified and are highly suspected to promote developmental, reproductive, neurological, or metabolic diseases in humans and wildlife. In this review, we provide an overview of reporter cell lines established to characterize the human NR activities of a large panel of EDCs including natural as well as industrial compounds such as pesticides, plasticizers, surfactants, flame retardants, and cosmetics.
Collapse
Affiliation(s)
- Marina Grimaldi
- IRCM, Institut de Recherche en Cancérologie de Montpellier, Montpellier, France
- U1194, INSERM, Montpellier, France
- Université Montpellier, Montpellier, France
- ICM, Institut Régional du Cancer de Montpellier, Montpellier, France
| | - Abdelhay Boulahtouf
- IRCM, Institut de Recherche en Cancérologie de Montpellier, Montpellier, France
- U1194, INSERM, Montpellier, France
- Université Montpellier, Montpellier, France
- ICM, Institut Régional du Cancer de Montpellier, Montpellier, France
| | - Vanessa Delfosse
- Université Montpellier, Montpellier, France
- U1054, INSERM, Montpellier, France
- CNRS UMR5048, Centre de Biochimie Structurale, Montpellier, France
| | - Erwan Thouennon
- IRCM, Institut de Recherche en Cancérologie de Montpellier, Montpellier, France
- U1194, INSERM, Montpellier, France
- Université Montpellier, Montpellier, France
- ICM, Institut Régional du Cancer de Montpellier, Montpellier, France
| | - William Bourguet
- Université Montpellier, Montpellier, France
- U1054, INSERM, Montpellier, France
- CNRS UMR5048, Centre de Biochimie Structurale, Montpellier, France
| | - Patrick Balaguer
- IRCM, Institut de Recherche en Cancérologie de Montpellier, Montpellier, France
- U1194, INSERM, Montpellier, France
- Université Montpellier, Montpellier, France
- ICM, Institut Régional du Cancer de Montpellier, Montpellier, France
- *Correspondence: Patrick Balaguer, U1194, IRCM, INSERM, ICM, Parc Euromédecine, 208 rue des Apothicaires, Montpellier 34090, France,
| |
Collapse
|
12
|
Zhang YF, Xu W, Lou QQ, Li YY, Zhao YX, Wei WJ, Qin ZF, Wang HL, Li JZ. Tetrabromobisphenol A disrupts vertebrate development via thyroid hormone signaling pathway in a developmental stage-dependent manner. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2014; 48:8227-34. [PMID: 24963557 DOI: 10.1021/es502366g] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Data concerning effects of tetrabromobisphenol A (TBBPA) on thyroid hormone (TH)-dependent vertebrate development have been limited, although TBBPA has been demonstrated in vitro to disrupt the TH signaling pathway at the transcriptional level. In this study, we investigated the effects of TBBPA on T3-induced and spontaneous Xenopus laevis metamorphosis, which share many similarities with TH-dependent development in higher vertebrates. In a 6-day T3-induced metamorphosis assay using premetamorphic tadpoles, 10-1000 nM TBBPA exhibited inhibitory effects on T3-induced expression of TH-response genes and morphological changes in a concentration-dependent manner, with a weak stimulatory action on tadpole development and TH-response gene expression in the absence of T3 induction. In a spontaneous metamorphosis assay, we further found that TBBPA promoted tadpole development from stage 51 to 56 (pre- and prometamorphic stages) but inhibited metamorphic development from stage 57 to 66 (metamorphic climax). These results strongly show that TBBPA, even at low concentrations, disrupts TH-dependent development in a developmental stage-dependent manner, i.e., TBBPA exhibits an antagonistic activity at the developmental stages when animals have high endogenous TH levels, whereas it acts as an agonist at the developmental stages when animals have low endogenous TH levels. Our study highlights the adverse influences of TBBPA on TH-dependent development in vertebrates.
Collapse
Affiliation(s)
- Yin-Feng Zhang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-environmental Sciences and ‡Department of Environmental Bio-Technology, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences , P.O. Box 2871, Beijing 100085, China
| | | | | | | | | | | | | | | | | |
Collapse
|
13
|
Valdehita A, Quesada-García A, Delgado MM, Martín JV, García-González MC, Fernández-Cruz ML, Navas JM. In vitro assessment of thyroidal and estrogenic activities in poultry and broiler manure. THE SCIENCE OF THE TOTAL ENVIRONMENT 2014; 472:630-641. [PMID: 24317169 DOI: 10.1016/j.scitotenv.2013.11.098] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2013] [Revised: 11/12/2013] [Accepted: 11/19/2013] [Indexed: 06/02/2023]
Abstract
Among the many chemicals found in avian manure, endocrine disruptors (EDs), of natural or anthropogenic origin, are of special environmental concern. Nowadays, an increasing amount of estrogens is being released into the environment via the use of manure to fertilize agricultural land. While most research in this field has focused on estrogenic phenomena, little is known about alterations related to other endocrine systems, such as the thyroidal one. Here we simultaneously assessed the potential estrogenic and thyroidal activity of poultry and broiler litter manure using in vitro approaches based on estrogen receptor (Er) and thyroid receptor (Tr) transactivation assays. In addition, leaching experiments were performed to assess whether the EDs present in the manure pass through a soil column and potentially reach the groundwater. Manure from four broiler and four poultry farms was collected in two sampling campaigns carried out in two seasons (fall and spring). Extracts from broiler and poultry manure exhibited strong thyroidal activity. Only poultry manure showed estrogenic activity, which is consistent with the low levels of estrogens expected in hatchlings. Leakage experiments were performed in columns with two kinds of arable soils: sandy and loamy. No estrogenicity or thyroidal activity was detectable in soils treated with the manure or in the corresponding leachates. These results indicate that substances with estrogenic or thyroidal activity were degraded in the soil under our experimental conditions. However, the long-term effects associated with the constant and intensive application of manure to agricultural land in some regions require further research.
Collapse
Affiliation(s)
- A Valdehita
- Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Departamento de Medio Ambiente, Carretera de la Coruña Km 7.5, 28040 Madrid, Spain.
| | - A Quesada-García
- Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Departamento de Medio Ambiente, Carretera de la Coruña Km 7.5, 28040 Madrid, Spain.
| | - M M Delgado
- Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Departamento de Medio Ambiente, Carretera de la Coruña Km 7.5, 28040 Madrid, Spain.
| | - J V Martín
- Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Departamento de Medio Ambiente, Carretera de la Coruña Km 7.5, 28040 Madrid, Spain.
| | - M C García-González
- Instituto Tecnológico Agrario de Castilla y León (ITACyL), Área de Innovación y Optimización de Procesos, Carretera de Burgos Km 119, 47071 Valladolid, Spain.
| | - M L Fernández-Cruz
- Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Departamento de Medio Ambiente, Carretera de la Coruña Km 7.5, 28040 Madrid, Spain.
| | - J M Navas
- Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Departamento de Medio Ambiente, Carretera de la Coruña Km 7.5, 28040 Madrid, Spain.
| |
Collapse
|
14
|
Shiizaki K, Yoshikawa T, Takada E, Hirose S, Ito-Harashima S, Kawanishi M, Yagi T. Development of yeast reporter assay for screening specific ligands of retinoic acid and retinoid X receptor subtypes. J Pharmacol Toxicol Methods 2014; 69:245-52. [PMID: 24530888 DOI: 10.1016/j.vascn.2014.01.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2014] [Accepted: 01/28/2014] [Indexed: 11/18/2022]
Abstract
INTRODUCTION Retinoic acids are essential for embryonic development, tissue organization, and homeostasis and act via retinoic acid receptors (RARs) that form heterodimers with retinoid X receptors (RXRs). Human RARs and RXRs include the three subtypes α, β, and γ, which have varying distributions and physiological functions among human tissues. Recent reports show that subtype-specific binding of several chemicals to RARs or RXRs may lead to endocrine disruption. To evaluate these ligand-like chemicals, convenient assay systems for each receptor subtype are required. METHODS We developed reporter assay yeasts to screen ligands for RXR subtype receptor homodimers. To screen RAR ligands, yeasts were engineered to express RAR subtypes with defective RXRα, which fails to bind to coactivators because of its shortened c-terminus. RESULTS These assay yeasts were validated using known RXR- and RAR-specific ligands and subtype-specific responses were clearly shown. Subtype-specific ligand activities of the suspected chemical RAR or RXR ligands o-t-butylphenol, triphenyltin chloride, tributyltin chloride, and 4-nonylphenol were determined. DISCUSSION The present assay yeasts may be valuable tools for subtype-specific assessments of unidentified environmental ligand chemicals and receptor-specific pharmaceuticals.
Collapse
Affiliation(s)
- Kazuhiro Shiizaki
- Department of Biology, Graduate School of Science, Osaka Prefecture University, Osaka, Japan
| | - Tomoya Yoshikawa
- Department of Biology, Graduate School of Science, Osaka Prefecture University, Osaka, Japan
| | - Eiji Takada
- Department of Biology, Graduate School of Science, Osaka Prefecture University, Osaka, Japan
| | - Shizuma Hirose
- Department of Biology, Graduate School of Science, Osaka Prefecture University, Osaka, Japan
| | - Sayoko Ito-Harashima
- Department of Biology, Graduate School of Science, Osaka Prefecture University, Osaka, Japan
| | - Masanobu Kawanishi
- Department of Biology, Graduate School of Science, Osaka Prefecture University, Osaka, Japan
| | - Takashi Yagi
- Department of Biology, Graduate School of Science, Osaka Prefecture University, Osaka, Japan; Department of Life Science, Dongguk University, Seoul, Republic of Korea.
| |
Collapse
|
15
|
Xu T, Close D, Smartt A, Ripp S, Sayler G. Detection of organic compounds with whole-cell bioluminescent bioassays. ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2014; 144:111-51. [PMID: 25084996 PMCID: PMC4597909 DOI: 10.1007/978-3-662-43385-0_4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Natural and manmade organic chemicals are widely deposited across a diverse range of ecosystems including air, surface water, groundwater, wastewater, soil, sediment, and marine environments. Some organic compounds, despite their industrial values, are toxic to living organisms and pose significant health risks to humans and wildlife. Detection and monitoring of these organic pollutants in environmental matrices therefore is of great interest and need for remediation and health risk assessment. Although these detections have traditionally been performed using analytical chemical approaches that offer highly sensitive and specific identification of target compounds, these methods require specialized equipment and trained operators, and fail to describe potential bioavailable effects on living organisms. Alternatively, the integration of bioluminescent systems into whole-cell bioreporters presents a new capacity for organic compound detection. These bioreporters are constructed by incorporating reporter genes into catabolic or signaling pathways that are present within living cells and emit a bioluminescent signal that can be detected upon exposure to target chemicals. Although relatively less specific compared to analytical methods, bioluminescent bioassays are more cost-effective, more rapid, can be scaled to higher throughput, and can be designed to report not only the presence but also the bioavailability of target substances. This chapter reviews available bacterial and eukaryotic whole-cell bioreporters for sensing organic pollutants and their applications in a variety of sample matrices.
Collapse
Affiliation(s)
- Tingting Xu
- Joint Institute for Biological Sciences, The University of Tennessee, Knoxville, TN, USA
| | - Dan Close
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA
| | - Abby Smartt
- Center for Environmental Biotechnology, The University of Tennessee, Knoxville, TN, USA; Department of Microbiology, The University of Tennessee, Knoxville, TN, USA
| | - Steven Ripp
- Center for Environmental Biotechnology, The University of Tennessee, Knoxville, TN, USADepartment of Microbiology, The University of Tennessee, Knoxville, TN, USA
| | - Gary Sayler
- Joint Institute for Biological Sciences, The University of Tennessee, Knoxville, TN, USA; Center for Environmental Biotechnology, The University of Tennessee, Knoxville, TN, USA; Department of Microbiology, The University of Tennessee, Knoxville, TN, USA
| |
Collapse
|
16
|
Murk AJ, Rijntjes E, Blaauboer BJ, Clewell R, Crofton KM, Dingemans MML, Furlow JD, Kavlock R, Köhrle J, Opitz R, Traas T, Visser TJ, Xia M, Gutleb AC. Mechanism-based testing strategy using in vitro approaches for identification of thyroid hormone disrupting chemicals. Toxicol In Vitro 2013; 27:1320-46. [PMID: 23453986 DOI: 10.1016/j.tiv.2013.02.012] [Citation(s) in RCA: 137] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2012] [Revised: 02/07/2013] [Accepted: 02/18/2013] [Indexed: 11/16/2022]
Abstract
The thyroid hormone (TH) system is involved in several important physiological processes, including regulation of energy metabolism, growth and differentiation, development and maintenance of brain function, thermo-regulation, osmo-regulation, and axis of regulation of other endocrine systems, sexual behaviour and fertility and cardiovascular function. Therefore, concern about TH disruption (THD) has resulted in strategies being developed to identify THD chemicals (THDCs). Information on potential of chemicals causing THD is typically derived from animal studies. For the majority of chemicals, however, this information is either limited or unavailable. It is also unlikely that animal experiments will be performed for all THD relevant chemicals in the near future for ethical, financial and practical reasons. In addition, typical animal experiments often do not provide information on the mechanism of action of THDC, making it harder to extrapolate results across species. Relevant effects may not be identified in animal studies when the effects are delayed, life stage specific, not assessed by the experimental paradigm (e.g., behaviour) or only occur when an organism has to adapt to environmental factors by modulating TH levels. Therefore, in vitro and in silico alternatives to identify THDC and quantify their potency are needed. THDC have many potential mechanisms of action, including altered hormone production, transport, metabolism, receptor activation and disruption of several feed-back mechanisms. In vitro assays are available for many of these endpoints, and the application of modern '-omics' technologies, applicable for in vivo studies can help to reveal relevant and possibly new endpoints for inclusion in a targeted THDC in vitro test battery. Within the framework of the ASAT initiative (Assuring Safety without Animal Testing), an international group consisting of experts in the areas of thyroid endocrinology, toxicology of endocrine disruption, neurotoxicology, high-throughput screening, computational biology, and regulatory affairs has reviewed the state of science for (1) known mechanisms for THD plus examples of THDC; (2) in vitro THD tests currently available or under development related to these mechanisms; and (3) in silico methods for estimating the blood levels of THDC. Based on this scientific review, the panel has recommended a battery of test methods to be able to classify chemicals as of less or high concern for further hazard and risk assessment for THD. In addition, research gaps and needs are identified to be able to optimize and validate the targeted THD in vitro test battery for a mechanism-based strategy for a decision to opt out or to proceed with further testing for THD.
Collapse
Affiliation(s)
- AlberTinka J Murk
- Wageningen University, Sub-department of Toxicology, Tuinlaan 5, 6703 HE Wageningen, The Netherlands.
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
17
|
Shi W, Zhang FX, Hu GJ, Hao YQ, Zhang XW, Liu HL, Wei S, Wang XR, Giesy JP, Yu HX. Thyroid hormone disrupting activities associated with phthalate esters in water sources from Yangtze River Delta. ENVIRONMENT INTERNATIONAL 2012; 42:117-23. [PMID: 21683443 DOI: 10.1016/j.envint.2011.05.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2010] [Revised: 05/10/2011] [Accepted: 05/17/2011] [Indexed: 05/03/2023]
Abstract
Thyroid hormone disrupting compounds in water sources is a concern. Thyroid hormone (TH) agonist and antagonist activities of water sources from the Yangtze River, Huaihe River, Taihu Lake and ground water in the Yangtze River Delta region were evaluated by use of a TH reporter gene assay based on the green monkey kidney fibroblast (CV-1). While weak TH receptor (TR) agonist potency was observed in only one of 15 water sources, antagonist potency was present in most of the water sources. TR antagonist equivalents could be explained by the presence of dibutyl phthalate (DBP), with concentrations ranging from 2.8×10(1) to 1.6×10(3) μg DBP /L (ATR-EQ(50)s). None of the ground waters exhibited TH agonist potencies while all of the samples from Taihu Lake displayed notable TR antagonist potencies. To identify the responsible thyroid active compounds, instrumental analysis was conducted to measure a list of potential thyroid-disrupting chemicals, including organochlorine (OC) pesticides and phthalate esters. Combining the results of the instrumental analysis with those of the bioassay, DBP was determined to account for 17% to 144% of ATR-EQ(50)s in water sources. Furthermore, ATR-EQ(20-80) ranges for TR antagonist activities indicated that samples from locations WX-1 and WX-2 posed the greatest health concern and the associated uncertainty may warrant further investigation.
Collapse
Affiliation(s)
- Wei Shi
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210093, PR China
| | | | | | | | | | | | | | | | | | | |
Collapse
|
18
|
Lévy-Bimbot M, Major G, Courilleau D, Blondeau JP, Lévi Y. Tetrabromobisphenol-A disrupts thyroid hormone receptor alpha function in vitro: use of fluorescence polarization to assay corepressor and coactivator peptide binding. CHEMOSPHERE 2012; 87:782-788. [PMID: 22277881 DOI: 10.1016/j.chemosphere.2011.12.080] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2011] [Revised: 12/16/2011] [Accepted: 12/30/2011] [Indexed: 05/27/2023]
Abstract
Thyroid hormone receptors (TRs) recruit corepressor or coactivator factors to the promoters of target genes to regulate their transcription. Corepressors such as nuclear hormone receptor corepressor (NCoR) are recruited by unliganded TRs, whereas coactivators such as steroid receptor coactivator-2 (SRC2) are recruited when triiodothyronine (T3) is bound to TRs. These coregulator proteins interact with the ligand binding domain (LBD) of TRs via short, conserved peptide sequences that can be used to probe the conformational changes induced in TR LBD by TR ligands. Recombinant LBD of the human TRα1 isoform (hTRα1 LBD) was produced as a fusion with glutathione S-transferase, and used to develop assays based on fluorescence polarization to quantify the binding of either NCoR- or SRC2-derived fluorescent peptides to the hTRα1 LBD. The optimum concentrations of recombinant hTRα1 LBD, and of peptide probes were adjusted in order to produce the greatest possible T3-dependent signal variations in fluorescence polarization. Under these conditions, T3 induced a dose-dependent decrease in NCoR peptide binding, and a reciprocal dose-dependent increase in SRC2 peptide binding, in both cases at similar 50%-effective doses. The TR agonists triiodothyroacetic acid and thyroxine were also effective in preventing NCoR peptide binding and increasing SRC2 peptide binding, whereas reverse-triiodothyronine was less efficient and the biologically inactive thyronine had no effect on either process. These experiments validate cell-free assays based on the use of binding of corepressor or coactivator peptide probes, as measured by fluorescence polarization, for investigating the conformational changes of TRα1 LBD induced by potentially TR-interfering compounds. Both these methods were used to elucidate the mechanism of the disrupting effects of tetrabromobisphenol-A (TBBPA) on the hTRα1 LBD conformation related to the transcriptional activity of the receptor. TBBPA is a flame retardant that is released into the environment, and is a suspected disrupter of thyroid homeostasis. The present results indicate that TBBPA did indeed interfere with the ability of the hTRα1 LBD to bind both NCoR and SRC2. TBBPA behaved similarly to T3 in promoting the release of NCoR from LBD, whereas it failed to promote LBD interactions with SRC2. However, it did reduce the T3-induced interactions between LBD and the coactivator peptide. This study therefore suggests that TBBPA in the micromolar range can affect the regulation of transcription by both the apo- and the holo-TRα1, with potential disruption of the expression of genes that are either up- or down-regulated by T3.
Collapse
|
19
|
Shi W, Hu X, Zhang F, Hu G, Hao Y, Zhang X, Liu H, Wei S, Wang X, Giesy JP, Yu H. Occurrence of thyroid hormone activities in drinking water from eastern China: contributions of phthalate esters. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2012; 46:1811-8. [PMID: 22191625 DOI: 10.1021/es202625r] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Thyroid hormone is essential for the development of humans. However, some synthetic chemicals with thyroid disrupting potentials are detectable in drinking water. This study investigated the presence of thyroid active chemicals and their toxicity potential in drinking water from five cities in eastern China by use of an in vitro CV-1 cell-based reporter gene assay. Waters were examined from several phases of drinking water processing, including source water, finished water from waterworks, tap water, and boiled tap water. To identify the responsible compounds, concentrations and toxic equivalents of a list of phthalate esters were quantitatively determined. None of the extracts exhibited thyroid receptor (TR) agonist activity. Most of the water samples exhibited TR antagonistic activities. None of the boiled water displayed the TR antagonistic activity. Dibutyl phthalate accounted for 84.0-98.1% of the antagonist equivalents in water sources, while diisobutyl phthalate, di-n-octyl phthalate and di-2-ethylhexyl phthalate also contributed. Approximately 90% of phthalate esters and TR antagonistic activities were removable by waterworks treatment processes, including filtration, coagulation, aerobic biodegradation, chlorination, and ozonation. Boiling water effectively removed phthalate esters from tap water. Thus, this process was recommended to local residents to reduce certain potential thyroid related risks through drinking water.
Collapse
Affiliation(s)
- Wei Shi
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, People's Republic of China
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
20
|
Terasaki M, Kosaka K, Kunikane S, Makino M, Shiraishi F. Assessment of thyroid hormone activity of halogenated bisphenol A using a yeast two-hybrid assay. CHEMOSPHERE 2011; 84:1527-1530. [PMID: 21550628 DOI: 10.1016/j.chemosphere.2011.04.045] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2011] [Revised: 04/07/2011] [Accepted: 04/17/2011] [Indexed: 05/30/2023]
Abstract
The thyroid hormone agonist/antagonist activities of halogenated derivatives of bisphenol A (BPA) were assessed using a yeast two-hybrid assay incorporating the human thyroid hormone α (TRα), both with and without possible metabolic activation by rat liver S9 preparation. In the absence of the rat liver S9 preparation, 3,3',5,5'-tetrabromobisphenol A (TBBPA), 3,3',5,5'-tetrachlorobisphenol A (TCBPA), and 3,3',5-trichlorobisphenol A (3,3',5-triClBPA) exhibited agonist activity, whereas 3-chlorobisphenol A (3-ClBPA), 3,5-dichlorobisphenol A (3,5-diClBPA), 3,3'-dichlorobisphenol A (3,3'-diClBPA), and BPA did not. The activities of TBBPA and TCBPA increased markedly (7.6-fold and 3.1-fold, respectively) after their metabolic activation with the rat liver S9 preparation. TBBPA, TCBPA, and 3,3',5-triClBPA inhibited the binding of triiodothyronine (T3) to TRα at 2×10(-5) M without rat liver S9 treatment and 4×10(-6) M with rat liver S9 treatment, demonstrating their T3 antagonist activity. These results revealed that metabolic activation by rat liver S9 significantly increased the agonist/antagonist potential of some halogenated BPAs.
Collapse
Affiliation(s)
- Masanori Terasaki
- Institute for Environmental Sciences, University of Shizuoka, 52-1 Yada, Shizuoka 422-8526, Japan.
| | | | | | | | | |
Collapse
|
21
|
Shi W, Wang X, Hu G, Hao Y, Zhang X, Liu H, Wei S, Wang X, Yu H. Bioanalytical and instrumental analysis of thyroid hormone disrupting compounds in water sources along the Yangtze River. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2011; 159:441-448. [PMID: 21074918 DOI: 10.1016/j.envpol.2010.10.023] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2010] [Revised: 10/12/2010] [Accepted: 10/15/2010] [Indexed: 05/30/2023]
Abstract
Thyroid hormone (TH) agonist and antagonist activities of water sources along the Yangtze River in China were surveyed by a green monkey kidney fibroblast (CV-1) cell-based TH reporter gene assay. Instrumental analysis was conducted to identify the responsible thyroid-active compounds. Instrumentally derived l-3,5,3'-triiodothyronine (T(3)) equivalents (T(3)-EQs) and thyroid receptor (TR) antagonist activity equivalents referring to dibutyl phthalate (DBP-EQs) were calculated from the concentrations of individual congeners. The reporter gene assay demonstrated that three out of eleven water sources contained TR agonist activity equivalents (TR-EQs), ranging from 286 to 293 ng T(3)/L. Anti-thyroid hormone activities were found in all water sources with the TR antagonist activity equivalents referring to DBP (Ant-TR-EQs), ranging from 51.5 to 555.3 μg/L. Comparisons of the equivalents from instrumental and biological assays suggested that high concentrations of DBP and di-2-ethylhexyl phthalate (DEHP) were responsible for the observed TR antagonist activities at some locations along the Yangtze River.
Collapse
Affiliation(s)
- Wei Shi
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210093, People's Republic of China
| | | | | | | | | | | | | | | | | |
Collapse
|
22
|
Svobodová K, Cajthaml T. New in vitro reporter gene bioassays for screening of hormonal active compounds in the environment. Appl Microbiol Biotechnol 2010; 88:839-47. [PMID: 20737269 DOI: 10.1007/s00253-010-2833-7] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2010] [Revised: 08/09/2010] [Accepted: 08/09/2010] [Indexed: 01/26/2023]
Abstract
Identification of chemicals with endocrine-disrupting activities in the past two decades has led to the need for sensitive assays for detection and monitoring of these activities in the environment. In vitro reporter gene assays represent a relatively fast and easy-to-perform method for detection of compounds that are able to bind to hormonal receptors and stimulate or silence their transactivation activity, thus interfering with the hormone signaling pathways. This paper reviews upgrades on reporter gene assays performed during the last decade. The utilization of new reporter genes (luciferase and green fluorescent protein coding genes) significantly improved the sensitivity of the tests and made them faster. Reporter gene assays now represent a high-throughput system for screening chemicals for hormonal activity. Finally, modification of test set-ups for testing anti-hormonal activities also enabled measurements of endocrine-disrupting activities in complex environmental samples such as sediments and wastewater treatment plant effluents.
Collapse
Affiliation(s)
- Katerina Svobodová
- Laboratory of Environmental Biotechnology, Institute of Microbiology of ASCR, v.v.i., Videnska, 1083 Prague, Czech Republic.
| | | |
Collapse
|
23
|
Establishment of yeast reporter assay systems to detect ligands of thyroid hormone receptors α and β. Toxicol In Vitro 2010; 24:638-44. [DOI: 10.1016/j.tiv.2009.10.001] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2008] [Revised: 08/20/2009] [Accepted: 10/02/2009] [Indexed: 11/21/2022]
|
24
|
Jugan ML, Levi Y, Blondeau JP. Endocrine disruptors and thyroid hormone physiology. Biochem Pharmacol 2009; 79:939-47. [PMID: 19913515 DOI: 10.1016/j.bcp.2009.11.006] [Citation(s) in RCA: 168] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2009] [Revised: 10/25/2009] [Accepted: 11/03/2009] [Indexed: 02/07/2023]
Abstract
Endocrine disruptors are man-made chemicals that can disrupt the synthesis, circulating levels, and peripheral action of hormones. The disruption of sex hormones was subject of intensive research, but thyroid hormone synthesis and signaling are now also recognized as important targets of endocrine disruptors. The neurological development of mammals is largely dependent on normal thyroid hormone homeostasis, and it is likely to be particularly sensitive to disruption of the thyroid axis. Here, we survey the main thyroid-disrupting chemicals, such as polychlorinated biphenyls, perchlorates, and brominated flame-retardants, that are characteristic disruptors of thyroid hormone homeostasis, and look at their suspected relationships to impaired development of the human central nervous system. The review then focuses on disrupting mechanisms known to be directly or indirectly related to the transcriptional activity of the thyroid hormone receptors.
Collapse
Affiliation(s)
- Mary-Line Jugan
- Univ Paris-Sud 11, Faculté de Pharmacie, Laboratoire Santé Publique-Environnement, 92290 Châtenay-Malabry, France.
| | | | | |
Collapse
|
25
|
Sun H, Shen OX, Wang XR, Zhou L, Zhen SQ, Chen XD. Anti-thyroid hormone activity of bisphenol A, tetrabromobisphenol A and tetrachlorobisphenol A in an improved reporter gene assay. Toxicol In Vitro 2009; 23:950-4. [DOI: 10.1016/j.tiv.2009.05.004] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2009] [Revised: 04/22/2009] [Accepted: 05/10/2009] [Indexed: 10/20/2022]
|
26
|
Levi Y. Contraintes et enjeux dans l’évaluation et la gestion des risques sanitaires liés aux micropolluants émergents dans les eaux. BULLETIN DE L ACADEMIE NATIONALE DE MEDECINE 2009. [DOI: 10.1016/s0001-4079(19)32471-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
27
|
Jugan ML, Oziol L, Bimbot M, Huteau V, Tamisier-Karolak S, Blondeau JP, Lévi Y. In vitro assessment of thyroid and estrogenic endocrine disruptors in wastewater treatment plants, rivers and drinking water supplies in the greater Paris area (France). THE SCIENCE OF THE TOTAL ENVIRONMENT 2009; 407:3579-3587. [PMID: 19246076 DOI: 10.1016/j.scitotenv.2009.01.027] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2008] [Revised: 01/14/2009] [Accepted: 01/14/2009] [Indexed: 05/27/2023]
Abstract
The presence of estrogenomimetic compounds in the environment, and particularly in water resources, is well known. In contrast, little data is available about the disruption of the thyroid system, even though thyroid hormones are strongly involved in regulating metabolism, growth and development. The aim of this study was to carry out a parallel evaluation of the disruptions of thyroid and estrogenic hormone receptor transcriptional activities, induced by water samples from two wastewater treatment plants (WWTPs), in the river Seine, and from four drinking treatment plants located in the Paris area. Two in vitro bioassays were used for the evaluation of thyroid (PC-DR-LUC) and estrogenic (MELN) disruption. Our observations of thyroidal activity show that a disruption potential was only present in the WWTPs influents, whereas estrogenicity was systematically detected in both influents and effluents. The great majority of endocrine activity was removed during the biological process. In the river Seine, only estrogenicity was detected, and no activity was observed in drinking water supplies. Fractionation of the influents revealed that most of the thyroidal effect was associated with compounds with low polarity, and could be partly attributable to 4-nonylphenol.
Collapse
Affiliation(s)
- M L Jugan
- Univ Paris-Sud 11, Faculté de Pharmacie, Laboratoire Santé Publique-Environnement-IFR141, F-92296 Châtenay-Malabry, France
| | | | | | | | | | | | | |
Collapse
|
28
|
Hofmann PJ, Schomburg L, Köhrle J. Interference of Endocrine Disrupters with Thyroid Hormone Receptor–Dependent Transactivation. Toxicol Sci 2009; 110:125-37. [DOI: 10.1093/toxsci/kfp086] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
29
|
Kawaguchi M, Morohoshi K, Saita E, Yanagisawa R, Watanabe G, Takano H, Morita M, Imai H, Taya K, Himi T. Developmental exposure to pentachlorophenol affects the expression of thyroid hormone receptor beta1 and synapsin I in brain, resulting in thyroid function vulnerability in rats. Endocrine 2008; 33:277-84. [PMID: 19082768 DOI: 10.1007/s12020-008-9086-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2008] [Accepted: 07/28/2008] [Indexed: 11/28/2022]
Abstract
Pentachlorophenol (PCP), a component of biocides and a contaminant in diverse tissue samples from humans from various geographic areas, disrupts regulatory effects of thyroid hormones. Here we examined the effects of developmental exposure of rats to PCP on various aspects of brain development, male reproductive function, and adrenal function, all of which are under thyroid hormones regulation. PCP was administered to dams and their offspring via drinking water (6.6 mg l(-1)) during gestation and lactation. Tissue samples were obtained from dams, 3-week-old weanling pups, and 12-week-old pups. Gene expressions of thyroid hormone receptor beta1 and synapsin I, factors that promote brain growth, was increased in the cerebral cortex of PCP-treated weanling females, whereas plasma concentrations of total thyroxine were decreased in dams and weanling pups, and plasma thyroid-stimulating hormone concentrations were higher in PCP-treated weanling males. PCP caused a decrease in plasma corticosterone concentrations in 12-week-old female rats, but not in male rats or weanling females. PCP-treated male pups had significantly increased testis weight at 12 week of age. No overt signs of toxicity were noted throughout this study. Our results show that PCP exposure during development causes thyroid function vulnerability, testicular hypertrophy in adults, and aberrations of brain gene expression.
Collapse
Affiliation(s)
- Maiko Kawaguchi
- Faculty of Pharmacy and Research Institute of Pharmaceutical Science, Musashino University, 1-1-20 Shinmachi, Nishitokyo-shi, Tokyo 202-8585, Japan
| | | | | | | | | | | | | | | | | | | |
Collapse
|