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Rebuzzini P, Rustichelli S, Fassina L, Canobbio I, Zuccotti M, Garagna S. BPA Exposure Affects Mouse Gastruloids Axial Elongation by Perturbing the Wnt/β-Catenin Pathway. Int J Mol Sci 2024; 25:7924. [PMID: 39063166 PMCID: PMC11276681 DOI: 10.3390/ijms25147924] [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: 06/11/2024] [Revised: 07/15/2024] [Accepted: 07/16/2024] [Indexed: 07/28/2024] Open
Abstract
Mammalian embryos are very vulnerable to environmental toxicants (ETs) exposure. Bisphenol A (BPA), one of the most diffused ETs, exerts endocrine-disrupting effects through estro-gen-mimicking and hormone-like properties, with detrimental health effects, including on reproduction. However, its impact during the peri-implantation stages is still unclear. This study, using gastruloids as a 3D stem cell-based in vitro model of embryonic development, showed that BPA exposure arrests their axial elongation when present during the Wnt/β-catenin pathway activation period by β-catenin protein reduction. Gastruloid reshaping might have been impeded by the downregulation of Snail, Slug and Twist, known to suppress E-cadherin expression and to activate the N-cadherin gene, and by the low expression of the N-cadherin protein. Also, the lack of gastruloids elongation might be related to altered exit of BPA-exposed cells from the pluripotency condition and their following differentiation. In conclusion, here we show that the inhibition of gastruloids' axial elongation by BPA might be the result of the concomitant Wnt/β-catenin perturbation, reduced N-cadherin expression and Oct4, T/Bra and Cdx2 altered patter expression, which all together concur in the impaired development of mouse gastruloids.
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Affiliation(s)
- Paola Rebuzzini
- Laboratory of Biology and Biotechnology of Reproduction, Department of Biology and Biotechnology “Lazzaro Spallanzani”, University of Pavia, Via Ferrata 9, 27100 Pavia, Italy; (M.Z.); (S.G.)
| | - Serena Rustichelli
- Laboratory of Biochemistry, Department of Biology and Biotechnology “Lazzaro Spallanzani”, University of Pavia, Via Bassi 21, 27100 Pavia, Italy; (S.R.); (I.C.)
- University School for Advanced Studies Pavia (IUSS), 27100 Pavia, Italy
| | - Lorenzo Fassina
- Department of Electrical, Computer and Biomedical Engineering (DIII), University of Pavia, Via Ferrata 5, 27100 Pavia, Italy;
- Centre for Health Technologies (CHT), University of Pavia, Via Ferrata 5, 27100 Pavia, Italy
| | - Ilaria Canobbio
- Laboratory of Biochemistry, Department of Biology and Biotechnology “Lazzaro Spallanzani”, University of Pavia, Via Bassi 21, 27100 Pavia, Italy; (S.R.); (I.C.)
| | - Maurizio Zuccotti
- Laboratory of Biology and Biotechnology of Reproduction, Department of Biology and Biotechnology “Lazzaro Spallanzani”, University of Pavia, Via Ferrata 9, 27100 Pavia, Italy; (M.Z.); (S.G.)
- Centre for Health Technologies (CHT), University of Pavia, Via Ferrata 5, 27100 Pavia, Italy
| | - Silvia Garagna
- Laboratory of Biology and Biotechnology of Reproduction, Department of Biology and Biotechnology “Lazzaro Spallanzani”, University of Pavia, Via Ferrata 9, 27100 Pavia, Italy; (M.Z.); (S.G.)
- Centre for Health Technologies (CHT), University of Pavia, Via Ferrata 5, 27100 Pavia, Italy
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Wee SY, Aris AZ, Yusoff FM, Praveena SM. Public perception on human exposure risk: A case study on endocrine disrupting compounds in the environment. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 270:115830. [PMID: 38141339 DOI: 10.1016/j.ecoenv.2023.115830] [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: 07/12/2023] [Revised: 12/05/2023] [Accepted: 12/12/2023] [Indexed: 12/25/2023]
Abstract
Humans are exposed to environmental risks owing to the broad usage of endocrine disrupting compounds (EDCs). However, the subjective evaluation of risk levels and characteristics, as well as the variation in risk processing, have not been thoroughly examined. The objective was to understand the public's perception of the risk associated with human exposure to environmental EDCs and identify any variations in risk perception. In this pioneering study conducted within the distinctive social and cultural context of Malaysia, a developing nation, a quantitative analysis approach was employed to assess the subjective evaluation of risk levels and characteristics among the public while developing a risk perception model. Data gathered from surveys and questionnaires were analyzed to gather information on the public's perception of environmental and health issues pertaining to pesticides, hormones, plastics, medicines, and cosmetics. The analysis revealed that the majority of the public assessed the level of human exposure to environmental risks based on experiential processing, which was influenced by cognitive and affective variables. Interestingly, a higher proportion of individuals in the community had a low risk perception of environmental EDCs, surpassing the overall risk perception by 19.3%. Furthermore, the public showed significant awareness of environmental and health issues related to pesticides, hormones, and plastics but had a lesser inclination to acknowledge the vulnerability of humans to risks associated with medicines and cosmetics. These findings suggest that the public is likely to be exposed to environmental EDCs based on their current perceived risks, and that sociopsychological factors play a significant role in shaping perceptions and judgments. This understanding can inform the development of targeted risk management strategies and interventions to mitigate the potential harm caused by environmental EDCs.
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Affiliation(s)
- Sze Yee Wee
- Department of Environment, Faculty of Forestry and Environment, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia; Institute of Biodiversity and Environmental Conservation, Universiti Malaysia Sarawak, 94300 Kota Samarahan, Sarawak, Malaysia.
| | - Ahmad Zaharin Aris
- Department of Environment, Faculty of Forestry and Environment, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia; International Institute of Aquaculture and Aquatic Sciences, Universiti Putra Malaysia, 71050 Port Dickson, Negeri Sembilan, Malaysia.
| | - Fatimah Md Yusoff
- International Institute of Aquaculture and Aquatic Sciences, Universiti Putra Malaysia, 71050 Port Dickson, Negeri Sembilan, Malaysia; Department of Aquaculture, Faculty of Agriculture, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia.
| | - Sarva Mangala Praveena
- International Institute of Aquaculture and Aquatic Sciences, Universiti Putra Malaysia, 71050 Port Dickson, Negeri Sembilan, Malaysia; Department of Environmental and Occupational Health, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia.
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Liu Y, Yang G, Yang C, Shi Z, Ru Y, Shen N, Xiao C, Wang Y, Gao Y. The Mechanism of Houttuynia cordata Embryotoxicity Was Explored in Combination with an Experimental Model and Network Pharmacology. Toxins (Basel) 2023; 15:73. [PMID: 36668893 PMCID: PMC9864403 DOI: 10.3390/toxins15010073] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/07/2023] [Accepted: 01/09/2023] [Indexed: 01/15/2023] Open
Abstract
Houttuynia cordata (H. cordata) is the most common herb as a food and traditional Chinese medicine. Currently, studies on its toxicity have mainly focused on hepatotoxicity. However, its potential embryotoxicity by long-term exposure is often overlooked. Objective: To investigate the effects of H. cordata on embryonic development and its toxicity mechanism by combining network pharmacology, molecular docking, and in vitro experimental methods. Methods: The effects of H. cordata on embryos were evaluated. Zebrafish embryos and embryoid bodies were administered to observe the effects of H. cordata on embryonic development. Based on network pharmacological analysis, it was found that the main active agents producing toxicity in H. cordata were oleanolic acid, lignan, and aristolactam AII. H. cordata can affect PI3K-Akt, MAPK, and Ras signaling pathways by regulating targets, such as AKT1, EGFR, CASP3, and IGF-1. RT-PCR and immunohistochemistry results showed that the expression of AKT1 and PI3K in the embryoid body was significantly reduced after drug administration (p < 0.05). Conclusions: The results of network pharmacology and in vitro experiments suggest that H. cordata may affect embryonic development by influencing the PI3K-Akt signaling pathway.
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Affiliation(s)
- Yufu Liu
- School of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
| | - Guodong Yang
- School of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
| | - Chunqi Yang
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Zhuo Shi
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Yi Ru
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Ningning Shen
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Chengrong Xiao
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Yuguang Wang
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Yue Gao
- School of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, China
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The DevTox Germ Layer Reporter Platform: An Assay Adaptation of the Human Pluripotent Stem Cell Test. TOXICS 2022; 10:toxics10070392. [PMID: 35878297 PMCID: PMC9321663 DOI: 10.3390/toxics10070392] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 06/14/2022] [Accepted: 06/30/2022] [Indexed: 11/16/2022]
Abstract
Environmental chemical exposures are a contributing factor to birth defects affecting infant morbidity and mortality. The USA EPA is committed to developing new approach methods (NAMs) to detect chemical risks to susceptible populations, including pregnant women. NAM-based coverage for cellular mechanisms associated with early human development could enhance identification of potential developmental toxicants (DevTox) for new and existing data-poor chemicals. The human pluripotent stem cell test (hPST) is an in vitro test method for rapidly identifying potential human developmental toxicants that employs directed differentiation of embryonic stem cells to measure reductions in SOX17 biomarker expression and nuclear localization. The objective of this study was to expand on the hPST principles to develop a model platform (DevTox GLR) that utilizes the transgenic RUES2-GLR cell line expressing fluorescent reporter fusion protein biomarkers for SOX17 (endoderm marker), BRA (mesoderm marker), and SOX2 (ectoderm and pluripotency marker). Initial assay adaption to definitive endoderm (DevTox GLR-Endo) was performed to emulate the hPST SOX17 endpoint and enable comparative evaluation of concordant chemical effects. Assay duration was reduced to two days and screening throughput scaled to 384-well format for enhanced speed and efficiency. Assay performance for 66 chemicals derived from reference and training set data resulted in a balanced accuracy of 72% (79% sensitivity and 65% specificity). The DevTox GLR-Endo assay demonstrates successful adaptation of the hPST concept with increased throughput, shorter assay duration, and minimal endpoint processing. The DevTox GLR model platform expands the in vitro NAM toolbox to rapidly identify potential developmental hazards and mechanistically characterize toxicant effects on pathways and processes associated with early human development.
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Morris J, Bealer EJ, Souza IDS, Repmann L, Bonelli H, Stanzione JF, Staehle MM. Chemical Exposure-Induced Developmental Neurotoxicity in Head-Regenerating Schmidtea Mediterranea. Toxicol Sci 2021; 185:220-231. [PMID: 34791476 DOI: 10.1093/toxsci/kfab132] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The growing number of commercially-used chemicals that are under-evaluated for developmental neurotoxicity (DNT) combined with the difficulty in describing the etiology of exposure-related neurodevelopmental toxicity has created a reticent threat to human health. Current means of screening chemicals for DNT are limited to expensive, time-consuming, and labor-intensive traditional laboratory animal models. In this study, we hypothesize that exposed head regenerating planarian flatworms can effectively and efficiently categorize DNT in known developmental neurotoxins (ethanol and bisphenol A (BPA)). Planarian flatworms are an established alternative animal model for neurodevelopmental studies and have remarkable regenerative abilities allowing neurodevelopment to be induced via head resection. Here, we observed changes in photophobic behavior and central nervous system (CNS) morphology to evaluate the impact of exposure to low concentrations of ethanol, BPA, and BPA industry alternatives bisphenol F (BPF), and bisguaiacol (BG) on neurodevelopment. Our studies show that exposure to 1% v/v ethanol during regeneration induces a recoverable 48-hour delay in the development of proper CNS integrity, which aligns with behavioral assessments of cognitive ability. Exposure to BPA and its alternatives induced deviations to neurodevelopment in a range of severities, distinguished by suppressions, delays, or a combination of the two. These results suggest that quick and inexpensive behavioral assessments are a viable surrogate for tedious and costly immunostaining studies, equipping more utility and resolution to the planarian model for neurodevelopmental toxicity in the future of mass chemical screening. These studies demonstrate that behavioral phenotypes observed following chemical exposure are classifiable and also temporally correlated to the anatomical development of the central nervous system in planaria. This will facilitate and accelerate toxicological screening assays with this alternative animal model.
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Affiliation(s)
- J Morris
- Department of Biomedical Engineering, Rowan University, Glassboro, NJ
| | - E J Bealer
- Department of Biomedical Engineering, Rowan University, Glassboro, NJ
| | - I D S Souza
- Department of Chemical Engineering, Rowan University, Glassboro, NJ
| | - L Repmann
- Department of Biomedical Engineering, Rowan University, Glassboro, NJ
| | - H Bonelli
- Department of Biomedical Engineering, Rowan University, Glassboro, NJ
| | - J F Stanzione
- Department of Chemical Engineering, Rowan University, Glassboro, NJ
| | - M M Staehle
- Department of Biomedical Engineering, Rowan University, Glassboro, NJ
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The Variations of Metabolic Detoxification Enzymes Lead to Recurrent Miscarriage and Their Diagnosis Strategy. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1300:259-280. [PMID: 33523438 DOI: 10.1007/978-981-33-4187-6_12] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
Spontaneous abortion has been a common obstetrical and gynecological disease, which occurs in 10-15% of all pregnancies. Recurrent miscarriage (RM) refers to the occurrence of three or more times abortions with the same partner. It is generally believed that environmental pollution associated with economic development may cause infertility and RM. When xenobiotics from the environment enter the body, they must be cleared from the body by various metabolic enzymes in the body. The absence or variation of these enzymes may be the genetic basis of RM caused by environmental pollution. The variation of metabolic detoxification enzyme can directly affect the removal of harmful substances from internal and external sources. Therefore, the determination of metabolic enzyme activity may become an important factor in the diagnosis of RM etiology and seeking methods to improve the detoxification ability has a great significance for the treatment of RM.
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Wee SY, Aris AZ, Yusoff FM, Praveena SM. Tap water contamination: Multiclass endocrine disrupting compounds in different housing types in an urban settlement. CHEMOSPHERE 2021; 264:128488. [PMID: 33045559 DOI: 10.1016/j.chemosphere.2020.128488] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 09/23/2020] [Accepted: 09/28/2020] [Indexed: 06/11/2023]
Abstract
Contamination of endocrine disrupting compounds (EDCs) in tap water is an emerging global issue, and there are abundant influencing factors that have an ambivalent effect on their transportation and fate. Different housing types vary in terms of water distribution system operation and design, water consumption choices, and other hydraulic factors, which potentially affect the dynamics, loadings, and partitioning of pollutants in tap water. Thus, this study analyzed 18 multiclass EDCs in tap water from different housing types (i.e., landed and high-rise) and the associated health risks. Sample analyses revealed the presence of 16 EDCs, namely hormones (5), pharmaceuticals (8), a pesticide (1), and plasticizers (2) in tap water, with the prevalent occurrence of bisphenol A up to 66.40 ng/L in high-rise housing. The presence of caffeine and sulfamethoxazole distribution in tap water was significantly different between landed and high-rise housings (t(152) = -2.298, p = 0.023 and t(109) = 2.135, p = 0.035). Moreover, the salinity and conductivity of tap water in high-rise housings were significantly higher compared to those in landed housings (t(122) = 2.411, p = 0.017 and t(94) = 2.997, p = 0.003, respectively). Furthermore, there were no potential health risks of EDCs (risk quotient < 1) estimated in different age groups via drinking water intake. However, EDC variation in different housing types requires simulation of the occurrence, transport, and fate of EDCs in the distribution system and investigation of the underlying factors for effective mitigation, prevention, and intervention.
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Affiliation(s)
- Sze Yee Wee
- Department of Environment, Faculty of Forestry and Environment, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia.
| | - Ahmad Zaharin Aris
- Department of Environment, Faculty of Forestry and Environment, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia; International Institute of Aquaculture and Aquatic Sciences, Universiti Putra Malaysia, 71050 Port Dickson, Negeri Sembilan, Malaysia.
| | - Fatimah Md Yusoff
- Department of Aquaculture, Faculty of Agriculture, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia; International Institute of Aquaculture and Aquatic Sciences, Universiti Putra Malaysia, 71050 Port Dickson, Negeri Sembilan, Malaysia.
| | - Sarva Mangala Praveena
- Department of Environmental and Occupational Health, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia; International Institute of Aquaculture and Aquatic Sciences, Universiti Putra Malaysia, 71050 Port Dickson, Negeri Sembilan, Malaysia.
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Witt G, Keminer O, Leu J, Tandon R, Meiser I, Willing A, Winschel I, Abt JC, Brändl B, Sébastien I, Friese MA, Müller FJ, Neubauer JC, Claussen C, Zimmermann H, Gribbon P, Pless O. An automated and high-throughput-screening compatible pluripotent stem cell-based test platform for developmental and reproductive toxicity assessment of small molecule compounds. Cell Biol Toxicol 2020; 37:229-243. [PMID: 32564278 PMCID: PMC8012336 DOI: 10.1007/s10565-020-09538-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Accepted: 06/02/2020] [Indexed: 12/02/2022]
Abstract
The embryonic stem cell test (EST) represents the only validated and accepted in vitro system for the detection and classification of compounds according to their developmental and reproductive teratogenic potency. The widespread implementation of the EST, however, in particular for routine application in pharmaceutical development, has not been achieved so far. Several drawbacks still limit the high-throughput screening of potential drug candidates in this format: The long assay period, the use of non-homogeneous viability assays, the low throughput analysis of marker protein expression and the compatibility of the assay procedures to automation. We have therefore introduced several advancements into the EST workflow: A reduction of the assay period, an introduction of homogeneous viability assays, and a straightforward analysis of marker proteins by flow cytometry and high content imaging to assess the impact of small molecules on differentiation capacity. Most importantly, essential parts of the assay procedure have been adapted to lab automation in 96-well format, thus enabling the interrogation of several compounds in parallel. In addition, extensive investigations were performed to explore the predictive capacity of this next-generation EST, by testing a set of well-known embryotoxicants that encompasses the full range of chemical-inherent embryotoxic potencies possible. Due to these significant improvements, the augmented workflow provides a basis for a sensitive, more rapid, and reproducible high throughput screening compatible platform to predict in vivo developmental toxicity from in vitro data which paves the road towards application in an industrial setting. •The embryonic stem cell test to predict teratogenicity was made automation-compatible. •Several key improvements to the assay procedure have been introduced to increase performance. •The workflow was adapted to human iPS cells and isogenic fibroblast donor cells. ![]()
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Affiliation(s)
- Gesa Witt
- Fraunhofer IME ScreeningPort, Schnackenburgallee 114, 22525, Hamburg, Germany
| | - Oliver Keminer
- Fraunhofer IME ScreeningPort, Schnackenburgallee 114, 22525, Hamburg, Germany
| | - Jennifer Leu
- Fraunhofer IME ScreeningPort, Schnackenburgallee 114, 22525, Hamburg, Germany
| | - Rashmi Tandon
- Fraunhofer IME ScreeningPort, Schnackenburgallee 114, 22525, Hamburg, Germany
| | - Ina Meiser
- Fraunhofer IBMT, 66280, Sulzbach, Saar, Germany
| | - Anne Willing
- Institut für Neuroimmunologie und Multiple Sklerose, Zentrum für Molekulare Neurobiologie Hamburg, Universitätsklinikum Hamburg-Eppendorf, 20251, Hamburg, Germany
| | - Ingo Winschel
- Institut für Neuroimmunologie und Multiple Sklerose, Zentrum für Molekulare Neurobiologie Hamburg, Universitätsklinikum Hamburg-Eppendorf, 20251, Hamburg, Germany
| | - Jana-Christin Abt
- Fraunhofer IME ScreeningPort, Schnackenburgallee 114, 22525, Hamburg, Germany
| | - Björn Brändl
- Christian-Albrechts-Universität zu Kiel, ZIP gGmbH, 24105, Kiel, Germany
| | | | - Manuel A Friese
- Institut für Neuroimmunologie und Multiple Sklerose, Zentrum für Molekulare Neurobiologie Hamburg, Universitätsklinikum Hamburg-Eppendorf, 20251, Hamburg, Germany
| | - Franz-Josef Müller
- Christian-Albrechts-Universität zu Kiel, ZIP gGmbH, 24105, Kiel, Germany
| | | | - Carsten Claussen
- Fraunhofer IME ScreeningPort, Schnackenburgallee 114, 22525, Hamburg, Germany
| | - Heiko Zimmermann
- Fraunhofer IBMT, 66280, Sulzbach, Saar, Germany.,Lehrstuhl für Molekulare und Zelluläre Biotechnologie, Universität des Saarlandes, 66123, Saarbrücken, Germany.,Fakultät für Meereswissenschaften, Universidad Católica del Norte, CL-1781421, Coquimbo, Chile
| | - Philip Gribbon
- Fraunhofer IME ScreeningPort, Schnackenburgallee 114, 22525, Hamburg, Germany
| | - Ole Pless
- Fraunhofer IME ScreeningPort, Schnackenburgallee 114, 22525, Hamburg, Germany.
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Tye M, Masino MA. Dietary Contaminants and Their Effects on Zebrafish Embryos. TOXICS 2019; 7:toxics7030046. [PMID: 31500302 PMCID: PMC6789805 DOI: 10.3390/toxics7030046] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 08/19/2019] [Accepted: 08/30/2019] [Indexed: 12/31/2022]
Abstract
Dietary contaminants are often an over-looked factor in the health of zebrafish. Typically, water is considered to be the source for most contaminants, especially within an aquatic environment. For this reason, source water for zebrafish recirculating systems is highly regulated and monitored daily. Most facilities use reverse osmosis or de-ionized water filtration systems to purify incoming water to ensure that contaminants, as well as pathogens, do not enter their zebrafish housing units. However, diets are rarely tested for contaminants and, in the case of manufactured zebrafish feeds, since the product is marketed for aquaculture or aquarium use it is assumed that the feed is acceptable for animals used for research. The following provides examples as to how contaminants could lead to negative effects on development and behavior of developing zebrafish.
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Affiliation(s)
- Marc Tye
- Department of Neuroscience, University of Minnesota Twin-Cities Minneapolis, MN 55455, USA.
| | - Mark A Masino
- Department of Neuroscience, University of Minnesota Twin-Cities Minneapolis, MN 55455, USA.
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Wang H, Bao Q, Yi H, Xia Q. The evaluation of embryotoxicity of Ligusticum chuanxiong on mice and embryonic stem cells. JOURNAL OF ETHNOPHARMACOLOGY 2019; 239:111895. [PMID: 31014960 DOI: 10.1016/j.jep.2019.111895] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 03/26/2019] [Accepted: 04/15/2019] [Indexed: 06/09/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Chuanxiong (Chuanxiong Rhizoma, CR), the dried rhizome of Ligusticum chuanxiong Hort, has been used during pregnancy for more than 2000 years. However, the embryotoxicity of CR was not evaluated so far. The purpose of this study was to examine the safety and rational use of CR during pregnancy on mice and mouse embryonic stem cell (ES), and to explore the mechanism of embryotoxicity. AIM OF THE STUDY This study was carried out to evaluate embryotoxicity of CR decoction in vivo and in vitro, and to explore the mechanism of embryotoxicity from the perspective of bone metabolism. MATERIALS AND METHODS In animal experiments, pregnant mice were randomly assigned into 5 groups, i.e. mice were orally treated with CR decoction at dosages of 0 (distilled water, as negative controls), 2, 8, 32 g/kg/d (low, medium and high-dose group), and vitamin A (as positive controls), respectively. Maternal and embryo-fetal parameters were registered after cesarean section. The fetal skeletal development was further assessed with the alizarin red S and Hematoxylin-Eosin staining (H&E staining) and fluorescent imaging. Meanwhile, the mouse embryonic stem cell test model (EST model) was established to objectively evaluate the toxicity of CR on the embryo development. The median inhibitory proliferation values (IC50) for both the mouse embryonic stem cell D3 (ES) and mouse embryonic fibroblast 3T3 (3T3) were detected with MTT assays. After removal of inhibiting factor (LIF), mouse embryonic stem cells spontaneously differentiated into cardiomyocytes, the expression of specific myosin heavy chain gene (β-MHC) contained in cardiomyocytes were detected by q-PCR quantitative analysis, and median inhibitory differentiation concentration (ID50) of ES was obtained. The development toxicity calculation formula was used to determine the embryotoxicity grade of CR decoction. finally, based on the successful induction of osteoblasts, the molecular mechanism of CR embryotoxicity was preliminarily studied based on BMP-Smads signal pathway. RESULTS Compared with the negative control group, high, medium, and low doses of CR decoction had no significant effect on the maternal body weight and uterine weight (P > 0.05), as well as on the maternal liver, heart, and kidneys. The observation results showed that high dose of CR decoction significantly increase the number of absorbed fetuses (P < 0.05). The EST model was successfully established, the IC50 3T3, IC50 ES and ID50 ES of CR were 9.39 mg/mL, 18.78 mg/mL, and 10.20 mg/mL, respectively. CR was classified as weak embryonic development toxicity by the EST linear discriminant formula. Meanwhile, osteoblasts were successfully induced in vitro, the relative expression levels of BMP2, BMPR2, Smad1, and Smad5 were down-regulated in varying degrees after 3, 6, and 9 days of treatment with different concentration gradients of CR decoction. CONCLUSIONS Combining in vivo and in vitro experiments, CR showed a potential embryotoxicity. The mechanism of embryotoxicity may be related to inhibiting the expression of key genes in the BMP-SMADs signaling pathway. In the clinical application, the normal dosage of CR is safe to a certain extent. However, when the dosage is too high (160 g/60 kg/d), there may be a risk of embryotoxicity.
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Affiliation(s)
- Hongyang Wang
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Qian Bao
- Jiangxi Medical School, Nanchang, 330000, China
| | - Hua Yi
- School of Basic Medical Science, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Quan Xia
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China.
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11
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Kim TW, Che JH, Yun JW. Use of stem cells as alternative methods to animal experimentation in predictive toxicology. Regul Toxicol Pharmacol 2019; 105:15-29. [DOI: 10.1016/j.yrtph.2019.03.016] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Revised: 03/23/2019] [Accepted: 03/25/2019] [Indexed: 12/16/2022]
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12
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Luz AL, Tokar EJ. Pluripotent Stem Cells in Developmental Toxicity Testing: A Review of Methodological Advances. Toxicol Sci 2018; 165:31-39. [PMID: 30169765 PMCID: PMC6111785 DOI: 10.1093/toxsci/kfy174] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Millions of children are born each year with a birth defect. Many of these defects are caused by environmental factors, although the underlying etiology is often unknown. In vivo mammalian models are frequently used to determine if a chemical poses a risk to the developing fetus. However, there are over 80 000 chemicals registered for use in the United States, many of which have undergone little safety testing, necessitating the need for higher-throughput methods to assess developmental toxicity. Pluripotent stem cells (PSCs) are an ideal in vitro model to investigate developmental toxicity as they possess the capacity to differentiate into nearly any cell type in the human body. Indeed, a burst of research has occurred in the field of stem cell toxicology over the past decade, which has resulted in numerous methodological advances that utilize both mouse and human PSCs, as well as cutting-edge technology in the fields of metabolomics, transcriptomics, transgenics, and high-throughput imaging. Here, we review the wide array of approaches used to detect developmental toxicants, suggest areas for further research, and highlight critical aspects of stem cell biology that should be considered when utilizing PSCs in developmental toxicity testing.
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Affiliation(s)
- Anthony L Luz
- Stem Cell Toxicology Group, National Toxicology Program Laboratory, Division of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina 27709
| | - Erik J Tokar
- Stem Cell Toxicology Group, National Toxicology Program Laboratory, Division of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina 27709
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Zheng N, Gao YN, Liu J, Wang HW, Wang JQ. Individual and combined cytotoxicity assessment of zearalenone with ochratoxin A or α-zearalenol by full factorial design. Food Sci Biotechnol 2018; 27:251-259. [PMID: 30263747 PMCID: PMC6049762 DOI: 10.1007/s10068-017-0197-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Revised: 07/26/2017] [Accepted: 08/30/2017] [Indexed: 11/30/2022] Open
Abstract
The combined mycotoxins zearalenone (ZEA) with ochratoxin A (OTA) or α-zearalenol (α-ZOL) are frequently found together in milk. Toxicological data concerning the combined effects of these mycotoxins are sparse. In present study, individual and combined ZEA, OTA and α-ZOL caused cytotoxicity and oxidative damage, including reductions in intracellular superoxide dismutase and glutathione peroxidase activities and glutathione content, along with increases in malonaldehyde content on human Hep G2 cells after 48 h of exposure. Among individual mycotoxins, OTA had the greatest cytotoxic effect followed by α-ZOL. Compared with individual mycotoxins, combinations produced more serious negative effects, more importantly, ZEA + OTA was antagonistic for these effects, whereas ZEA + α-ZOL was antagonistic at low concentrations, but synergistic at high concentrations of ZEA, which were evaluated by 3 × 3 full factorial analysis and estimated marginal means plots. Our results also demonstrated a significant correlation between cytotoxicity and oxidative damage in response to these combinations.
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Affiliation(s)
- N. Zheng
- Ministry of Agriculture Laboratory of Quality and Safety Risk Assessment for Dairy Products (Beijing), Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193 People’s Republic of China
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Haidian District, Beijing, 100193 People’s Republic of China
| | - Y. N. Gao
- Ministry of Agriculture Laboratory of Quality and Safety Risk Assessment for Dairy Products (Beijing), Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193 People’s Republic of China
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Haidian District, Beijing, 100193 People’s Republic of China
| | - J. Liu
- China National Research Institute of Food and Fermentation Industries, Beijing, 100027 People’s Republic of China
| | - H. W. Wang
- Ministry of Agriculture Laboratory of Quality and Safety Risk Assessment for Dairy Products (Beijing), Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193 People’s Republic of China
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, 730070 People’s Republic of China
| | - J. Q. Wang
- Ministry of Agriculture Laboratory of Quality and Safety Risk Assessment for Dairy Products (Beijing), Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193 People’s Republic of China
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Haidian District, Beijing, 100193 People’s Republic of China
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Abstract
The development of stem cell biology has revolutionized regenerative medicine and its clinical applications. Another aspect through which stem cells would benefit human health is their use in toxicology. In fact, owing to their ability to differentiate into all the lineages of the human body, including germ cells, stem cells, and, in particular, pluripotent stem cells, can be utilized for the assessment, in vitro, of embryonic, developmental, reproductive, organ, and functional toxicities, relevant to human physiology, without employing live animal tests and with the possibility of high throughput applications. Thus, stem cell toxicology would tremendously assist in the toxicological evaluation of the increasing number of synthetic chemicals that we are exposed to, of which toxicity information is limited. In this review, we introduce stem cell toxicology, as an emerging branch of in vitro toxicology, which offers quick and efficient alternatives to traditional toxicology assessments. We first discuss the development of stem cell toxicology, and we then emphasize its advantages and highlight the achievements of human pluripotent stem cell-based toxicity research.
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Affiliation(s)
- Shuyu Liu
- 1 State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences , Chinese Academy of Sciences, Beijing, P.R. China .,2 College of Resources and Environment, University of Chinese Academy of Sciences , Beijing, P.R. China
| | - Nuoya Yin
- 1 State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences , Chinese Academy of Sciences, Beijing, P.R. China .,2 College of Resources and Environment, University of Chinese Academy of Sciences , Beijing, P.R. China
| | - Francesco Faiola
- 1 State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences , Chinese Academy of Sciences, Beijing, P.R. China .,2 College of Resources and Environment, University of Chinese Academy of Sciences , Beijing, P.R. China
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15
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Zhou R, Cheng W, Feng Y, Wei H, Liang F, Wang Y. Interactions between three typical endocrine-disrupting chemicals (EDCs) in binary mixtures exposure on myocardial differentiation of mouse embryonic stem cell. CHEMOSPHERE 2017; 178:378-383. [PMID: 28340460 DOI: 10.1016/j.chemosphere.2017.03.040] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Revised: 03/02/2017] [Accepted: 03/10/2017] [Indexed: 06/06/2023]
Abstract
In recent years, various kinds of endocrine-disrupting chemicals (EDCs) have been detected in human blood and urine. Thus, it was important to investigate the combined toxicity effect of EDCs. In the present study, we evaluated the individual and combined developmental toxicities of three classic EDCs: perfluorooctane sulfonate (PFOS), perfluorooctanoic acid (PFOA), and bisphenol A (BPA) by embryonic stem cell test (EST). The similarities and differences between combination of same chemical group as well as different chemical groups were investigated in this research. Our results showed that the three compounds were all classified as weak embryotoxicity. The results of co-exposure revealed that there was synergistic action in combination of PFOS and BPA on myocardial differentiation. However, in all endpoints, the combined effects between PFOA with PFOS or BPA were both additive action. Therefore, we concluded that the additive effects were found in most different EDC mixtures whether they had similar structure or not. On the other hand, synergistic action was observed in a mixture of EDCs that belonged to a different chemical groups.
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Affiliation(s)
- Ren Zhou
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, PR China.
| | - Wei Cheng
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, PR China
| | - Yan Feng
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, PR China
| | - Hongying Wei
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, PR China
| | - Fan Liang
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, PR China
| | - Yan Wang
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, PR China; The Ninth People's Hospital of Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China; MOE-Shanghai Key Laboratory of Children's Environmental Health, Shanghai, 200092, PR China.
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16
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Tomza-Marciniak A, Stępkowska P, Kuba J, Pilarczyk B. Effect of bisphenol A on reproductive processes: A review of in vitro, in vivo and epidemiological studies. J Appl Toxicol 2017; 38:51-80. [PMID: 28608465 DOI: 10.1002/jat.3480] [Citation(s) in RCA: 84] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Revised: 03/22/2017] [Accepted: 03/24/2017] [Indexed: 12/23/2022]
Abstract
As bisphenol A (BPA) is characterized by a pronounced influence on human hormonal regulation, particular attention has been aimed at understanding its role in reproductive processes in males and females, as well as on fetal development. Owing to the increasing number of alarming reports on the negative consequences of the presence of BPA in human surroundings, more and more studies are being undertaken to clarify the negative effects of BPA on human reproductive processes. The aim of this work was to collect and summarize data on the influence of BPA exposure on reproductive health. Based on an analysis of selected publications it was stated that there is strong proof confirming that BPA is an ovarian, uterine and prostate toxicant at a level below the lowest observed adverse effect level (50 mg kg-1 bodyweight) as well as a level below the proposed safe level (4 μg kg-1 bodyweight). It seems there is also reliable evidence in relation to the negative effect of BPA on sperm quality and motility. Limited evidence also pertains to the case of the potential of BPA to affect polycystic ovary syndrome occurrence. Although in epidemiological studies this disease was common, in studies on animal models such results were still not confirmed. No unambiguous results of epidemiological studies and with animal models were obtained in relation to the evaluation of associations between BPA and implantation failure in women, evaluation of associations between BPA and sexual dysfunction in men, and impact of BPA on birth rate, birth weight and length of gestation. Copyright © 2017 John Wiley & Sons, Ltd.
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Affiliation(s)
- Agnieszka Tomza-Marciniak
- Department of Animal Reproduction Biotechnology and Environmental Hygiene, West Pomeranian University of Technology in Szczecin, Janickiego 29, 71-270, Szczecin, Poland
| | - Paulina Stępkowska
- Department of Animal Reproduction Biotechnology and Environmental Hygiene, West Pomeranian University of Technology in Szczecin, Janickiego 29, 71-270, Szczecin, Poland
| | - Jarosław Kuba
- Department of Animal Reproduction Biotechnology and Environmental Hygiene, West Pomeranian University of Technology in Szczecin, Janickiego 29, 71-270, Szczecin, Poland
| | - Bogumiła Pilarczyk
- Department of Animal Reproduction Biotechnology and Environmental Hygiene, West Pomeranian University of Technology in Szczecin, Janickiego 29, 71-270, Szczecin, Poland
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17
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Carter CJ, Blizard RA. Autism genes are selectively targeted by environmental pollutants including pesticides, heavy metals, bisphenol A, phthalates and many others in food, cosmetics or household products. Neurochem Int 2016; 101:S0197-0186(16)30197-8. [PMID: 27984170 DOI: 10.1016/j.neuint.2016.10.011] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 10/18/2016] [Accepted: 10/26/2016] [Indexed: 11/21/2022]
Abstract
The increasing incidence of autism suggests a major environmental influence. Epidemiology has implicated many candidates and genetics many susceptibility genes. Gene/environment interactions in autism were analysed using 206 autism susceptibility genes (ASG's) from the Autworks database to interrogate ∼1 million chemical/gene interactions in the comparative toxicogenomics database. Any bias towards ASG's was statistically determined for each chemical. Many suspect compounds identified in epidemiology, including tetrachlorodibenzodioxin, pesticides, particulate matter, benzo(a)pyrene, heavy metals, valproate, acetaminophen, SSRI's, cocaine, bisphenol A, phthalates, polyhalogenated biphenyls, flame retardants, diesel constituents, terbutaline and oxytocin, inter alia showed a significant degree of bias towards ASG's, as did relevant endogenous agents (retinoids, sex steroids, thyroxine, melatonin, folate, dopamine, serotonin). Numerous other suspected endocrine disruptors (over 100) selectively targeted ASG's including paraquat, atrazine and other pesticides not yet studied in autism and many compounds used in food, cosmetics or household products, including tretinoin, soy phytoestrogens, aspartame, titanium dioxide and sodium fluoride. Autism polymorphisms influence the sensitivity to some of these chemicals and these same genes play an important role in barrier function and control of respiratory cilia sweeping particulate matter from the airways. Pesticides, heavy metals and pollutants also disrupt barrier and/or ciliary function, which is regulated by sex steroids and by bitter/sweet taste receptors. Further epidemiological studies and neurodevelopmental and behavioural research is warranted to determine the relevance of large number of suspect candidates whose addition to the environment, household, food and cosmetics might be fuelling the autism epidemic in a gene-dependent manner.
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Affiliation(s)
- C J Carter
- PolygenicPathways, Flat 2, 40 Baldslow Road, Hastings, East Sussex, TN34 2EY, UK.
| | - R A Blizard
- Molecular Psychiatry Laboratory, Mental Health Sciences Unit, University College, London, UK
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18
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Rezvanfar MA, Hodjat M, Abdollahi M. Growing knowledge of using embryonic stem cells as a novel tool in developmental risk assessment of environmental toxicants. Life Sci 2016; 158:137-60. [DOI: 10.1016/j.lfs.2016.05.027] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Revised: 04/27/2016] [Accepted: 05/17/2016] [Indexed: 12/19/2022]
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19
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Chen W, Zou C, Li X, Li L. The treatment of phenolic contaminants from shale gas drilling wastewater: a comparison with UV-Fenton and modified UV-Fenton processes at neutral pH. RSC Adv 2016. [DOI: 10.1039/c6ra18662a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this study, the treatment efficiency of phenolic contaminants from drilling wastewater was evaluated with three different UV-Fenton processes.
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Affiliation(s)
- Wenjing Chen
- College of Chemistry and Chemical Engineering
- Southwest
- Petroleum University
- Chengdu City
- PR China
| | - Changjun Zou
- College of Chemistry and Chemical Engineering
- Southwest
- Petroleum University
- Chengdu City
- PR China
| | - Xiaoke Li
- College of Chemistry and Chemical Engineering
- Southwest
- Petroleum University
- Chengdu City
- PR China
| | - Lu Li
- College of Chemistry and Chemical Engineering
- Southwest
- Petroleum University
- Chengdu City
- PR China
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20
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Bernardo BD, Brandt JZ, Grassi TF, Silveira LTR, Scarano WR, Barbisan LF. Genistein reduces the noxious effects of in utero bisphenol A exposure on the rat prostate gland at weaning and in adulthood. Food Chem Toxicol 2015; 84:64-73. [DOI: 10.1016/j.fct.2015.07.011] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Revised: 05/07/2015] [Accepted: 07/15/2015] [Indexed: 01/26/2023]
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21
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Li J, Fu KZ, Vemula S, Le XC, Li XF. Studying developmental neurotoxic effects of bisphenol A (BPA) using embryonic stem cells. J Environ Sci (China) 2015; 36:173-7. [PMID: 26456619 DOI: 10.1016/j.jes.2015.08.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Affiliation(s)
- Jinhua Li
- Division of Analytical and Environmental Toxicology, Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB T6G 2G3, Canada
| | - Katherine Z Fu
- Division of Analytical and Environmental Toxicology, Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB T6G 2G3, Canada
| | - Sai Vemula
- Division of Analytical and Environmental Toxicology, Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB T6G 2G3, Canada
| | - X Chris Le
- Division of Analytical and Environmental Toxicology, Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB T6G 2G3, Canada
| | - Xing-Fang Li
- Division of Analytical and Environmental Toxicology, Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB T6G 2G3, Canada.
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22
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Yin N, Yao X, Qin Z, Wang YL, Faiola F. Assessment of Bisphenol A (BPA) neurotoxicity in vitro with mouse embryonic stem cells. J Environ Sci (China) 2015; 36:181-187. [PMID: 26456621 DOI: 10.1016/j.jes.2015.06.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Revised: 06/18/2015] [Accepted: 06/23/2015] [Indexed: 06/05/2023]
Abstract
The adverse effects of environmental pollution on our well-being have been intensively studied with many in vitro and in vivo systems. In our group, we focus on stem cell toxicology due to the multitude of embryonic stem cell (ESC) properties which can be exerted in toxicity assays. In fact, ESCs can differentiate in culture to mimic embryonic development in vivo, or specifically to virtually any kind of somatic cells. Here, we used the toxicant Bisphenol A (BPA), a chemical known as a hazard to infants and children, and showed that our stem cell toxicology system was able to efficiently recapitulate most of the toxic effects of BPA previously detected by in vitro system or animal tests. More precisely, we demonstrated that BPA affected the proper specification of germ layers during our in vitro mimicking of the embryonic development, as well as the establishment of neural ectoderm and neural progenitor cells.
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Affiliation(s)
- Nuoya Yin
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
| | - Xinglei Yao
- 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
| | - Yuan-Liang Wang
- Section of Molecular Biology, University of California at San Diego, La Jolla, CA 92093, USA
| | - Francesco Faiola
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
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23
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Li LY, Cao FF, Su ZJ, Zhang QH, Dai XY, Xiao X, Huang YD, Zheng Q, Xu H. Assessment of the embryotoxicity of four Chinese herbal extracts using the embryonic stem cell test. Mol Med Rep 2015; 12:2348-54. [PMID: 25873199 DOI: 10.3892/mmr.2015.3598] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2014] [Accepted: 11/07/2014] [Indexed: 11/06/2022] Open
Abstract
Rhizoma Atractylodes macrocephala, Radix Isatidis, Coptis chinensis and Flos Genkwa are common herbal remedies used by pregnant woman in China. In this study, their potential embryotoxicity was assessed using the embryonic stem cell test (EST) and a prediction model. The potential embryotoxicity of the herbs was based on three endpoints: the concentrations of the compounds that inhibited the proliferation of 50% of embryonic stem cells (ESCs) (IC50ES), the concentrations that inhibited 50% of 3T3 cells (IC503T3), and the concentrations that inhibited the differentiation of 50% of ESCs (ID50ES). The results revealed that Rhizoma Atractylodes macrocephala and Radix Isatidis are non-embryotoxic compounds. Coptis chinensis extracts appeared to demonstrated weak embryotoxicity, and Flos Genkwa exhibited strong embryotoxicity. These results may be useful in guiding the clinical use of these herbs and in expanding the application of the EST to the field of traditional Chinese medicine.
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Affiliation(s)
- Lin-Yan Li
- Department of Microbiological and Biochemical Pharmacy, College of Pharmacy, Jinan University, Guangzhou, Guangdong 510632, P.R. China
| | - Fen-Fang Cao
- Department of Microbiological and Biochemical Pharmacy, College of Pharmacy, Jinan University, Guangzhou, Guangdong 510632, P.R. China
| | - Zhi-Jian Su
- Department of Biopharmaceutical Research and Development Centre, Jinan University, Guangzhou, Guangdong 510632, P.R. China
| | - Qi-Hao Zhang
- Department of Biopharmaceutical Research and Development Centre, Jinan University, Guangzhou, Guangdong 510632, P.R. China
| | - Xiao-Yong Dai
- Department of Microbiological and Biochemical Pharmacy, College of Pharmacy, Jinan University, Guangzhou, Guangdong 510632, P.R. China
| | - Xue Xiao
- Department of Biopharmaceutical Research and Development Centre, Jinan University, Guangzhou, Guangdong 510632, P.R. China
| | - Ya-Dong Huang
- Department of Biopharmaceutical Research and Development Centre, Jinan University, Guangzhou, Guangdong 510632, P.R. China
| | - Qing Zheng
- Department of Microbiological and Biochemical Pharmacy, College of Pharmacy, Jinan University, Guangzhou, Guangdong 510632, P.R. China
| | - Hua Xu
- Department of Microbiological and Biochemical Pharmacy, College of Pharmacy, Jinan University, Guangzhou, Guangdong 510632, P.R. China
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An integrated approach for detecting embryotoxicity and developmental toxicity of environmental contaminants using in vitro alternative methods. Toxicol Lett 2014; 230:356-67. [DOI: 10.1016/j.toxlet.2014.01.037] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2013] [Revised: 12/10/2013] [Accepted: 01/27/2014] [Indexed: 11/19/2022]
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25
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Bariar B, Vestal CG, Richardson C. Long-term effects of chromatin remodeling and DNA damage in stem cells induced by environmental and dietary agents. J Environ Pathol Toxicol Oncol 2014; 32:307-27. [PMID: 24579784 DOI: 10.1615/jenvironpatholtoxicoloncol.2013007980] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
The presence of histones acts as a barrier to protein access; thus chromatin remodeling must occur for essential processes such as transcription and replication. In conjunction with histone modifications, DNA methylation plays critical roles in gene silencing through chromatin remodeling. Chromatin remodeling is also interconnected with the DNA damage response, maintenance of stem cell properties, and cell differentiation programs. Chromatin modifications have increasingly been shown to produce long-lasting alterations in chromatin structure and transcription. Recent studies have shown environmental exposures in utero have the potential to alter normal developmental signaling networks, physiologic responses, and disease susceptibility later in life during a process known as developmental reprogramming. In this review we discuss the long-term impact of exposure to environmental compounds, the chromatin modifications that they induce, and the differentiation and developmental programs of multiple stem and progenitor cell types altered by exposure. The main focus is to highlight agents present in the human lifestyle that have the potential to promote epigenetic changes that impact developmental programs of specific cell types, may promote tumorigenesis through altering epigenetic marks, and may be transgenerational, for example, those able to be transmitted through multiple cell divisions.
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Affiliation(s)
- Bhawana Bariar
- Department of Biology, University of North Carolina at Charlotte, Charlotte, NC
| | - C Greer Vestal
- Department of Biology, University of North Carolina at Charlotte, Charlotte, NC
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