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Xie R, Wang X, Xu Y, Zhang L, Ma M, Wang Z. In vitro to in vivo extrapolation for predicting human equivalent dose of phenolic endocrine disrupting chemicals: PBTK model development, biological pathways, outcomes and performance. Sci Total Environ 2023; 897:165271. [PMID: 37422235 DOI: 10.1016/j.scitotenv.2023.165271] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 06/12/2023] [Accepted: 06/30/2023] [Indexed: 07/10/2023]
Abstract
In vitro to in vivo (IVIVE) leverages in vitro high-throughput biological responses to predict the corresponding in vivo exposures and further estimate the human safe dose. However, for phenolic endocrine disrupting chemicals (EDCs) linked with complicated biological pathways and adverse outcomes (AO), such as bisphenol A (BPA) and 4-nonylphenol (4-NP), plausible estimation of human equivalent doses (HED) by IVIVE approaches considering various biological pathways and endpoints is still challenging. To explore the capabilities and limitations of IVIVE, this study conducted physiologically based toxicokinetic (PBTK)-IVIVE approaches to derive pathway-specific HEDs using BPA and 4-NP as examples. In vitro HEDs of BPA and 4-NP varied in different adverse outcomes, pathways, and testing endpoints and ranged from 0.0013 to 1.0986 mg/kg bw/day and 0.0551 to 1.7483 mg/kg bw/day, respectively. In vitro HEDs associated with reproductive AOs initiated by PPARα activation and ER agonism were the most sensitive. Model verification suggested the potential of using effective in vitro data to determine reasonable approximation of in vivo HEDs for the same AO (fold differences of most AOs ranged in 0.14-2.74 and better predictions for apical endpoints). Furthermore, system-specific parameters of cardiac output and its fraction, body weight, as well as chemical-specific parameters of partition coefficient and liver metabolic were most sensitive for the PBTK simulations. The results indicated that the application of fit for-purpose PBTK-IVIVE approach could provide credible pathway-specific HEDs and contribute to high throughput prioritization of chemicals in a more realistic scenario.
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Affiliation(s)
- Ruili Xie
- Key Laboratory of Drinking Water Science and Technology, 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
| | - Xiaodan Wang
- China National Center for Food Safety Risk Assessment, Beijing 100022, China
| | - Yiping Xu
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
| | - Lei Zhang
- China National Center for Food Safety Risk Assessment, Beijing 100022, China.
| | - Mei Ma
- Key Laboratory of Drinking Water Science and Technology, 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
| | - Zijian Wang
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
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2
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Lee BY, Jo JB, Choi D, Lee SH, Cheon YP. A Chronic-Low-Dose Exposing of DEHP with OECD TG 443 Altered the
Histological Characteristics and Steroidogeic Gene Expression of Adrenal Gland
in Female Mice. Dev Reprod 2021; 25:257-268. [PMID: 35141451 PMCID: PMC8807134 DOI: 10.12717/dr.2021.25.4.257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 11/13/2021] [Accepted: 12/04/2021] [Indexed: 11/17/2022]
Affiliation(s)
- Bo Young Lee
- Division of Developmental Biology and
Physiology, Center for Development and Program Research, Department of
Biotechnology, Institute of Basic Sciences, Sungshin
University, Seoul 02844, Korea
| | - Jeong Bin Jo
- Division of Developmental Biology and
Physiology, Center for Development and Program Research, Department of
Biotechnology, Institute of Basic Sciences, Sungshin
University, Seoul 02844, Korea
| | - Donchan Choi
- Dept. of Life Science, College of
Environmental Sciences, Yong-In University, Yongin
17092, Korea
| | - Sung-Ho Lee
- Dept. of Biotechnology, Sangmyung
University, Seoul 03016, Korea
| | - Yong-Pil Cheon
- Division of Developmental Biology and
Physiology, Center for Development and Program Research, Department of
Biotechnology, Institute of Basic Sciences, Sungshin
University, Seoul 02844, Korea
- Corresponding author Yong-Pil Cheon,
Division of Developmental Biology and Physiology, Department of Biotechnology,
Institute of Basic Sciences, Sungshin University, Seoul 02844, Korea. Tel:
+82-2-920-7639, Fax: +82-2-920-2736,
E-mail:
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3
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Popescu M, Feldman TB, Chitnis T. Interplay Between Endocrine Disruptors and Immunity: Implications for Diseases of Autoreactive Etiology. Front Pharmacol 2021; 12:626107. [PMID: 33833678 PMCID: PMC8021784 DOI: 10.3389/fphar.2021.626107] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 01/19/2021] [Indexed: 12/12/2022] Open
Abstract
The sex-bias of disease susceptibility has remained a puzzling aspect of several autoimmune conditions, including post-infection viral autoimmunity. In the last half of the twentieth century, the incidence rate of female-biased autoimmunity has steadily increased independent of medical advances. This has suggested a role for environmental factors, such as endocrine disrupting chemicals, which have been described to interfere with endocrine signaling. Endocrine involvement in the proper function of innate and adaptive immunity has also been defined, however, these two areas have rarely been reviewed in correlation. In addition, studies addressing the effects of endocrine disruptors have reported findings resulting from a broad range of exposure doses, schedules and models. This experimental heterogeneity adds confusion and may mislead the translation of findings to human health. Our work will normalize results across experiments and provide a necessary summary relevant to human exposure. Through a novel approach, we describe how different categories of ubiquitously used environmental endocrine disruptors interfere with immune relevant endocrine signaling and contribute to autoimmunity. We hope this review will guide identification of mechanisms and concentration-dependent EDC effects important not only for the sex-bias of autoimmunity, but also for other conditions of immune dysfunction, including post-infection autoreactivity such as may arise following severe acute respiratory syndrome coronavirus 2, Epstein-Barr virus, Herpes Simplex virus.
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Affiliation(s)
- Maria Popescu
- Harvard Medical School, Boston, MA, United States.,Brigham Multiple Sclerosis Center, Department of Neurology, Brigham and Women's Hospital, Boston, MA, United States.,Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Boston, MA, United States
| | - Talia B Feldman
- Brigham Multiple Sclerosis Center, Department of Neurology, Brigham and Women's Hospital, Boston, MA, United States.,Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Boston, MA, United States
| | - Tanuja Chitnis
- Harvard Medical School, Boston, MA, United States.,Brigham Multiple Sclerosis Center, Department of Neurology, Brigham and Women's Hospital, Boston, MA, United States.,Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Boston, MA, United States
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4
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Xu Y, Sun MH, Xu Y, Ju JQ, Pan MH, Pan ZN, Li XH, Sun SC. Nonylphenol exposure affects mouse oocyte quality by inducing spindle defects and mitochondria dysfunction. Environ Pollut 2020; 266:114967. [PMID: 32645552 DOI: 10.1016/j.envpol.2020.114967] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Revised: 05/20/2020] [Accepted: 06/03/2020] [Indexed: 06/11/2023]
Abstract
Nonylphenol (NP) is a chemical raw material and intermediate which is mainly used in the production of surfactants, lubricating oil additives and pesticide emulsifiers. NP is reported to be toxic on the immune system, nervous system and reproductive system due to its binding to estrogen receptors. However, the toxicity of NP on mammalian oocyte quality remains unclear. In present study, we explored the effects of NP exposure on mouse oocyte maturation. Our results showed that 4 weeks of NP exposure increased the number of atresia follicles and decreased oocyte developmental competence. Transcriptomic analysis indicated that NP exposure altered the expression of more than 800 genes in oocytes, including multiple biological pathways. Subcellular structure examination indicated that NP exposure disrupted meiotic spindle organization and caused chromosome misalignment. Moreover, aberrant mitochondrial distribution and decreased membrane potential were also observed, indicating that NP exposure caused mitochondria dysfunction. Further analysis showed that NP exposure resulted in the accumulation of reactive oxygen species (ROS), which causes oxidative stress; and the NP-exposed oocytes showed positive Annexin-V signal, indicating the occurrence of early apoptosis. In summary, our results indicated that NP exposure reduced oocyte quality by affecting cytoskeletal dynamics and mitochondrial function, which further induced oxidative stress and apoptosis in mice.
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Affiliation(s)
- Yi Xu
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Ming-Hong Sun
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yao Xu
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Jia-Qian Ju
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Meng-Hao Pan
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Zhen-Nan Pan
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xiao-Han Li
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Shao-Chen Sun
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China.
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5
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Kim YB, Cheon YP, Choi D, Lee SH. Histological Analysis of Reproductive System in Low-Dose Nonylphenol-treated F1 Female Mice. Dev Reprod 2020; 24:159-165. [PMID: 33110947 PMCID: PMC7576963 DOI: 10.12717/dr.2020.24.3.159] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 08/28/2020] [Accepted: 09/07/2020] [Indexed: 12/26/2022]
Abstract
Previously, we reported adverse effects of low-dose nonylphenol (NP) exposure on
the reproductive parameters of F1 female mice. In the present study we further
investigated the pathohistological effect of NP exposure on the reproductive
organs in F1 female mice. NP exposures were continuously conducted from parental
pre-mating period until the postnatal day (PND) 33 of F1 offspring for vaginal
examination. Mice were sacrificed on PND 30 and the reproductive tissue weights
were measured. The initial (at PND 21) body weights of the NP-50 group animals
were significantly lower than those of control group animals, and the weight
deficit were recovered when the terminal (PND 33) body weights were measured.
Early vaginal opening was found in NP group animals
(p<0.05). Pathohistological studies revealed that
NP-treated F1 animals showed prominent increase in the ovarian follicle numbers
(p<0.01), and decrease in the diameter of uterine
myometrium (p<0.01), and increase in the diameter of
luminal epithelium (p<0.05). The present study
demonstrated that the subchronic low-dose NP exposure induced early beginning of
puberty and pathohistological abnormalities in ovary and uterus of F1 mice.
Further studies are needed to achieve a better understanding on the action
mechanism of NP in pubertal onset and to find a way to avoid a hazardous
situation provoked by NP exposure.
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Affiliation(s)
- Yong-Bin Kim
- Dept. of Biotechnology, Sangmyung University, Seoul 03016, Korea
| | - Yong-Pil Cheon
- Division of Developmental Biology and Physiology, School of Biological Sciences and Chemistry, Sungshin University, Seoul 02844, Korea
| | - Donchan Choi
- Dept. of Life Science, College of Environmental Sciences, Yong-In University, Yongin 17092, Korea
| | - Sung-Ho Lee
- Dept. of Biotechnology, Sangmyung University, Seoul 03016, Korea
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6
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De la Parra-Guerra A, Olivero-Verbel J. Toxicity of nonylphenol and nonylphenol ethoxylate on Caenorhabditis elegans. Ecotoxicol Environ Saf 2020; 187:109709. [PMID: 31654870 DOI: 10.1016/j.ecoenv.2019.109709] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2019] [Revised: 09/19/2019] [Accepted: 09/21/2019] [Indexed: 06/10/2023]
Abstract
Among the most used chemicals in the world are nonionic surfactants. One of these environmental pollutants is nonylphenol ethoxylate (NP-9), also known as Tergitol, and its degradation product, nonylphenol (NP). The objective of this work was to determine the toxicity of NP and NP-9 in Caenorhabditis elegans. Wild-type L4 larvae were exposed to different concentrations of the surfactants to measure functional endpoints. Mutant strains were employed to promote the activation of toxicity signaling pathways related to mtl-2, gst-1, gpx-4, gpx-6, sod-4, hsp-70 and hsp-4. Additionally, stress response was also assessed using a daf-16::GFP transgenic strain. The lethality was concentration dependent, with 24-h LC50 of 122 μM and 3215 μM for NP and NP-9, respectively. Both compounds inhibited nematode growth, although NP was more potent; and at non-lethal concentrations, nematode locomotion was reduced. The increase in the expression of tested genes was significant at 10 μM for NP-9 and 0.001 μM for NP, implying a likely role for the activation of oxidative and cellular stress, as well as metabolism pathways. With the exception of glutathione peroxidase, which has a bimodal concentration-response curve for NP, typical of endocrine disruption, the other curves for this xenobiotic in the strains evaluated were almost flat for most concentrations, until reaching 50-100 μM, where the effect peaked. NP and NP-9 induced the activation and nuclear translocation of DAF-16, suggesting that transcription of stress-response genes may be mediated by the insulin/IGF-1 signaling pathway. In contrast, NP-9 induced a concentration-dependent response for the sod-4 and hsp-4 mutants, with greater fluorescence induction than NP at similar levels. In short, NP and NP-9 affect the physiology of C. elegans and modulate gene expression related to ROS production, cellular stress and metabolism of xenobiotics.
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Affiliation(s)
- Ana De la Parra-Guerra
- Environmental and Computational Chemistry Group, School of Pharmaceutical Sciences, University of Cartagena, Cartagena, 130015, Colombia.
| | - Jesus Olivero-Verbel
- Environmental and Computational Chemistry Group, School of Pharmaceutical Sciences, University of Cartagena, Cartagena, 130015, Colombia.
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7
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Kim YB, Cheon YP, Choi D, Lee SH. Adverse Effect of Nonylphenol on the Reproductive System in F2 Male Mice : A Qualitative Change? Dev Reprod 2019; 23:255-262. [PMID: 31660452 PMCID: PMC6812968 DOI: 10.12717/dr.2019.23.3.255] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Revised: 08/13/2019] [Accepted: 09/05/2019] [Indexed: 12/20/2022]
Abstract
Previously, we reported negative effects of low-dose nonylphenol (NP) exposure on
the reproductive organs of F1 male mice. In the present study was further
investigated the endocrine disrupting effect of NP exposure to F2 generation
male mice. Mice were divided into 2 groups; (1) CON, control animals and (2)
NP-50 (50 μg/L), animals were treated with NP via drinking water. NP
exposures were continuously conducted from parental pre-mating period until the
postnatal day (PND) 55 of F2 offsprings. Mice were sacrificed on PND 55 and the
reproductive tissue weights were measured. The initial (at PND 21) and terminal
(PND 55) body weights of the NP-50 group animals were not significantly
different from those of control group animals. NP exposure fail to induce a
significant weight change of the testes, seminal vesicle and prostate except
absolute epididymal weight (p<0.05). However,
pathohistological studies revealed that NP-treated F2 animals showed evident
decrease in seminiferous tubule diameters, reduced luminal area and number of
germ cells. Also, sloughing morphologies in the tubules were notable. In the
caudal epididymis, fewer mature sperms and swollen epithelial cells were found
in the NP-treated group. The present study demonstrated that the subchronic
low-dose NP exposure induced pathohistological abnormalities in testis and
epididymis of F2 mice, and we assumed that these ‘qualitative’
changes in reproductive tissues could be derived from the epigenetic
modifications such as DNA methylation, histone modification, altered DNA
accessibility and chromatin structure. Further studies are needed to achieve a
better understanding on the multi- or trans-generational effects of NP on
the reproductive health and a human application.
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Affiliation(s)
- Yong-Bin Kim
- Dept. of Biotechnology, Sangmyung University, Seoul 03016, Korea
| | - Yong-Pil Cheon
- Division of Developmental Biology and Physiology, Dept. of Lifetechnology, Sungshin University, Seoul 02844, Korea
| | - Donchan Choi
- Dept. of Life Science, College of Environmental Sciences, Yong-In University, Yongin 17092, Korea
| | - Sung-Ho Lee
- Dept. of Biotechnology, Sangmyung University, Seoul 03016, Korea
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8
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Kim J, Cha S, Lee MY, Hwang YJ, Yang E, Choi D, Lee SH, Cheon YP. Chronic and Low Dose Exposure to Nonlyphenol or Di(2-Ethylhexyl) Phthalate Alters Cell Proliferation and the Localization of Steroid Hormone Receptors in Uterine Endometria in Mice. Dev Reprod 2019; 23:263-275. [PMID: 31660453 PMCID: PMC6812976 DOI: 10.12717/dr.2019.23.3.263] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Revised: 08/30/2019] [Accepted: 09/19/2019] [Indexed: 02/04/2023]
Abstract
Based on our preliminary results, we examined the possible role of low-dose and
chronic-exposing of the chemicals those are known as endocrine disrupting
chemical (EDC), on the proliferation of uterine endometrium and the localization
of steroid receptors. Immunohistochemical or immunofluorochemical methodology
were employed to evaluate the localization of antigen identified by monoclonal
antibody Ki 67 protein (MKI67), estrogen receptor 1 (ESR1), estrogen receptor 2
(ESR2), and progesterone receptor (PGR). In 133 μg/L and 1,330
μg/L di(2-ethylhexyl) phthalate (DEHP) and 50 μg/L nonylphenol
(NP) groups, the ratio of MKI67 positive stromal cells was significantly
increased but not in 500 μg/L NP group. The ratios of MKI67 positive
glandular and luminal epithelial cells were also changed by the chronic
administration of NP and DEHP in tissue with dose specific manner. ESR1 signals
were localized in nucleus in glandular and luminal epithelia of control group
but its localization was mainly in cytoplasm in DEHP and NP administered groups.
On the other hand, it was decreased at nucleus of stromal cells in 1,330
μg/L DEHP group. The colocalization patterns of these nuclear receptors
were also modified by the administration of these chemicals. Such a tissue
specific and dose specific localization of ESR2 and PGR were detected as ESR1 in
all the uterine endometrial tissues. These results show that the chronic
lows-dose exposing of NP or DEHP modify the localization and colocalization of
ESRs and PGR, and of the proliferation patterns of the endometrial tissues.
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Affiliation(s)
- Juhye Kim
- Division of Developmental Biology and Physiology, Dept. of Biotechnology, Sungshin University, Seoul 02844, Korea
| | - Sunyeong Cha
- Division of Developmental Biology and Physiology, Dept. of Biotechnology, Sungshin University, Seoul 02844, Korea
| | - Min Young Lee
- Division of Developmental Biology and Physiology, Dept. of Biotechnology, Sungshin University, Seoul 02844, Korea
| | - Yeon Jeong Hwang
- Division of Developmental Biology and Physiology, Dept. of Biotechnology, Sungshin University, Seoul 02844, Korea
| | - Eunhyeok Yang
- Division of Developmental Biology and Physiology, Dept. of Biotechnology, Sungshin University, Seoul 02844, Korea
| | - Donchan Choi
- Dept. of Life Science, College of Environmental Sciences, Yong-In University, Yongin 17092, Korea
| | - Sung-Ho Lee
- Dept. of Biotechnology, Sangmyung University, Seoul 03016, Korea
| | - Yong-Pil Cheon
- Division of Developmental Biology and Physiology, Dept. of Biotechnology, Sungshin University, Seoul 02844, Korea
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9
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Kim YB, Cheon YP, Lee SH. Adverse Effect of Nonylphenol on the Reproductive System in F1 Male Mice: A Subchronic Low-Dose Exposure Model. Dev Reprod 2019; 23:93-99. [PMID: 31321349 PMCID: PMC6635614 DOI: 10.12717/dr.2019.23.2.093] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 04/21/2019] [Accepted: 05/02/2019] [Indexed: 01/01/2023]
Abstract
Nonylphenols (NPs) are widely used industrial materials, and are considered as
potent endocrine disrupting chemical. Present study was undertaken to clarify
the effect of subchronic low-dose NP exposure to F1 generation male mice. Mice
were divided into 2 groups; (1) CON, control animals and (2) NP-50 (50
μg/L), animals were treated with NP via drinking water. NP exposures were
continuously conducted from parental pre-mating period until the postnatal day
(PND) 55 of F1 offsprings. Mice were sacrificed on PND 55 and the tissue weights
were measured. The initial body weights (at PND 21) and terminal body weights
(PND 55) of the NP-50 animals were significantly lower than those of control
animals (p<0.05). NP exposure induced a significant
increase in the absolute weight of the testes (p<0.05).
Conversely, the NP exposure caused significant decrease in the absolute weights
of the epididymis (p<0.01), prostate
(p<0.05) and seminal vesicle
(p<0.05). Histopathological studies revealed that
NP-treated animals exerted decreased seminiferous tubule diameters, reduced
luminal area, and lower number of germ cells. Also some sloughing morphologies
in the tubules were observed. In the caudal epididymis, fewer mature sperms and
swollen epithelial cells were found in the NP-treated group. Our results
confirmed that the subchronic low-dose NP exposure altered some male parameters
and induced histopathological abnormalities in testis and epididymis of F1 mice.
Since the NP dose used in this study is close to the average human daily NP
exposure, our results could provide practically meaningful understanding of
adverse effect of EDC in human.
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Affiliation(s)
- Yong-Bin Kim
- Dept. of Biotechnology, Sangmyung University, Seoul 03016, Korea
| | - Yong-Pil Cheon
- Division of Developmental Biology and Physiology, School of Biological Sciences and Chemistry, Sungshin University, Seoul 02844, Korea
| | - Sung-Ho Lee
- Dept. of Biotechnology, Sangmyung University, Seoul 03016, Korea
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10
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Lite C, Ahmed SSSJ, Santosh W, Seetharaman B. Prenatal exposure to bisphenol-A altered miRNA-224 and protein expression of aromatase in ovarian granulosa cells concomitant with elevated serum estradiol levels in F 1 adult offspring. J Biochem Mol Toxicol 2019; 33:e22317. [PMID: 30817060 DOI: 10.1002/jbt.22317] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 01/31/2019] [Accepted: 02/12/2019] [Indexed: 12/22/2022]
Abstract
This study was aimed to predict bisphenol-A (BPA)-responsive miRNA's using an in silico approach and to study their expression in granulosa cells of animals exposed prenatally to BPA. Pregnant Wistar rats were exposed to BPA through water (25 μg/L, 250 μg/L, and 2.5 mg/L) during gestation. The expression of miRNA-133b, miRNA-378 and miRNA-224 were analyzed in ovarian granulosa cells. BPA affected the postnatal developmental landmarks such as weight of the pups at birth and reduced anogenital distance. BPA exposed animals showed elevated serum estradiol (E2) levels, while follicle-stimulating hormone levels were reduced. The expression of miRNA-224 and aromatase protein levels were found to be increased. This preliminary finding reveals the impact of early life exposure to BPA on the long-term ovarian functions that may be mediated through miRNA-based granulosa cell response. Besides, it is also a compelling indicator for the subclinical response that could have important consequences on female fertility.
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Affiliation(s)
- Christy Lite
- Endocrine Disruption and Reproductive Toxicology (EDART) Laboratory, SRM Institute of Science and Technology, Chennai, Tamil Nadu, India
| | - Sheik S S J Ahmed
- Department of Computational Biology, Chettinad Academy of Research and Education, Chennai, Tamil Nadu, India
| | - Winkins Santosh
- Endocrine Disruption and Reproductive Toxicology (EDART) Laboratory, SRM Institute of Science and Technology, Chennai, Tamil Nadu, India.,P.G. Research Departments of Advanced Zoology & Biotechnology, Government College for Men, Chennai, Tamil Nadu, India
| | - Barathi Seetharaman
- Endocrine Disruption and Reproductive Toxicology (EDART) Laboratory, SRM Institute of Science and Technology, Chennai, Tamil Nadu, India
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11
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Kim J, Cha S, Lee MY, Hwang YJ, Yang E, Ryou C, Jung HI, Cheon YP. Chronic Low-Dose Nonylphenol or Di-(2-ethylhexyl) Phthalate has a Different Estrogen-like Response in Mouse Uterus. Dev Reprod 2018; 22:379-391. [PMID: 30680337 PMCID: PMC6344359 DOI: 10.12717/dr.2018.22.4.379] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 11/25/2018] [Accepted: 12/08/2018] [Indexed: 12/16/2022]
Abstract
Through the development of organic synthetic skill, chemicals that mimic signaling mediators such as steroid hormones have been exposed to the environment. Recently, it has become apparent that this circumstance should be further studied in the field of physiology. Estrogenic action of chronic low-dose nonylphenol (NP) and di-(2-ethylhexyl) phthalate (DEHP) in mouse uterus was assessed in this study. Ten to twelve-week-old female mice (CD-1) were fed drinking water containing NP (50 or 500 μg/L) or DEHP (133 or 1,330 μg/L) for 10 weeks. Uterine diameter, the thickness of myometrium and endometrium, and the height of luminal epithelial cells were measured and the number of glands were counted. The expression levels of the known 17β-estradiol (E2)-regulated genes were evaluated with real-time RT-PCR methodology. The ration of uterine weight to body weight increased in 133 μg/L DEHP. Endometrial and myometrial thickness increased in 133 and 1,330 μg/L DEHP treated groups, and in 50, 500 μg/L NP and 133 μg/L DEHP, respectively. The height of luminal epithelial cell decreased in NP groups. The numbers of luminal epithelial gland were decreased in NP groups but increased in 50 μg/L DEHP group. The histological characters of glands were not different between groups. The mRNA expression profiles of the known 17β-estradiol (E2) downstream genes, Esr1, Esr2, Pgr, Lox, and Muc1, were also different between NP and DEHP groups. The expression levels dramatically increased in some genes by the NP or DEHP. Based on these results, it is suggested that the chronic low-dose NP or DEHP works as estrogen-like messengers in uterus with their own specific gene expression-regulation patterns.
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Affiliation(s)
- Juhye Kim
- Division of Developmental Biology and Physiology, School of Bioscience and Chemistry, Institute for Basic Sciences, Sungshin University, Seoul 02844, Korea
| | - Sunyeong Cha
- Division of Developmental Biology and Physiology, School of Bioscience and Chemistry, Institute for Basic Sciences, Sungshin University, Seoul 02844, Korea
| | - Min Young Lee
- Division of Developmental Biology and Physiology, School of Bioscience and Chemistry, Institute for Basic Sciences, Sungshin University, Seoul 02844, Korea
| | - Yeon Jeong Hwang
- Division of Developmental Biology and Physiology, School of Bioscience and Chemistry, Institute for Basic Sciences, Sungshin University, Seoul 02844, Korea
| | - Eunhyeok Yang
- Division of Developmental Biology and Physiology, School of Bioscience and Chemistry, Institute for Basic Sciences, Sungshin University, Seoul 02844, Korea
| | - Chongsuk Ryou
- Dept. of Pharmacy, College of Pharmacy, Hanyang University, Ansan 15588, Korea
| | - Hyo-Il Jung
- School of Mechanical Engineering, Yonsei University, Seoul 03722, Korea
| | - Yong-Pil Cheon
- Division of Developmental Biology and Physiology, School of Bioscience and Chemistry, Institute for Basic Sciences, Sungshin University, Seoul 02844, Korea
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Abstract
Endocrine disruption has been gathering increasing attention in the past 25 years as a possible new threat for health and safety. Exposure to endocrine disruptor has been progressively linked with a growing number of increasing disease in the human population. The mechanics through which endocrine disruptors act are not yet completely clear, however a number of pathways have been identified. A key concern is the cumulative and synergic effects that endocrine disruptors could have when mixed in consumer products. We reviewed the available literature to identify known or potential endocrine disruptors, as well as endocrine active substances that could contribute to cumulative effects, in topical consumer products. The number of endocrine actives used daily in consumer products is staggering and even though most if not all are used in concentrations that are considered to be safe, we believe that the possibility of combined effects in mixtures and non-monotonic dose/response is enough to require further precautions. A combined in vitro approach based on existing, validated OECD test methods is suggested to screen consumer products and mixtures for potential interaction with estrogen and androgen hormone receptors, in order to identify products that could have cumulative effects or support their safety concerning direct endocrine disruption capabilities.
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Li X, Huo J, Liu Z, Yue Q, Zhang L, Gong Y, Chen J, Bao H. An updated weight of evidence approach for deriving a health-based guidance value for 4-nonylphenol. J Appl Toxicol 2018; 39:87-100. [PMID: 30027633 DOI: 10.1002/jat.3661] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Revised: 05/07/2018] [Accepted: 06/04/2018] [Indexed: 01/29/2023]
Affiliation(s)
- Xiaomeng Li
- West China School of Public Health and Healthy Food Evaluation Research Center; Sichuan University; Chengdu 610041 China
- Food Safety Monitoring and Risk Assessment Key Laboratory of Sichuan Province; Chengdu 610041 China
| | - Jiao Huo
- West China School of Public Health and Healthy Food Evaluation Research Center; Sichuan University; Chengdu 610041 China
- Food Safety Monitoring and Risk Assessment Key Laboratory of Sichuan Province; Chengdu 610041 China
| | - Zhaoping Liu
- China National Center for Food Safety Risk Assessment; Beijing 100022 China
| | - Qianlan Yue
- West China School of Public Health and Healthy Food Evaluation Research Center; Sichuan University; Chengdu 610041 China
- Food Safety Monitoring and Risk Assessment Key Laboratory of Sichuan Province; Chengdu 610041 China
| | - Lishi Zhang
- West China School of Public Health and Healthy Food Evaluation Research Center; Sichuan University; Chengdu 610041 China
- Food Safety Monitoring and Risk Assessment Key Laboratory of Sichuan Province; Chengdu 610041 China
| | - Yunyun Gong
- China National Center for Food Safety Risk Assessment; Beijing 100022 China
- School of Food Science and Nutrition; University of Leeds; Leeds LS2 9JT UK
| | - Jinyao Chen
- West China School of Public Health and Healthy Food Evaluation Research Center; Sichuan University; Chengdu 610041 China
- Food Safety Monitoring and Risk Assessment Key Laboratory of Sichuan Province; Chengdu 610041 China
| | - Huihui Bao
- China National Center for Food Safety Risk Assessment; Beijing 100022 China
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Kazemi S, Khalili-Fomeshi M, Akbari A, Kani SNM, Ahmadian SR, Ghasemi-Kasman M. The correlation between nonylphenol concentration in brain regions and resulting behavioral impairments. Brain Res Bull 2018. [DOI: 10.1016/j.brainresbull.2018.03.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Cha S, Jung K, Lee MY, Hwang YJ, Yang E, Lee SH, Jung HI, Cheon YP. Nonmonotonic Effects of Chronic Low-Dose Di(2-ethylhexyl) Phthalate on Gonadal Weight and Reproductive. Dev Reprod 2018; 22:85-94. [PMID: 29707687 PMCID: PMC5915770 DOI: 10.12717/dr.2018.22.1.085] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 03/22/2018] [Accepted: 03/26/2018] [Indexed: 01/24/2023]
Abstract
Endocrine disruptors have been concerned in toxicology but now challenged as
physiological point especially concerned with exposing dose and period. In this
study the low-dose chronic administration of di(2-ethylhexyl) phthaltae (DEHP)
during reproductive period was examined to evaluate the possible roles. Adult
male and female CD-1 mice were exposed to DEHP with drinking water containing
133 1g/L and 1,330 /g/L DEHP in water according to OECD 433 guide line and
sacrificed just after weaning. The weights of uterus and ovary were decreased by
drinking of 1,330 /g/L DEHP water. There was not adverse effects on either
accumulated mating rate and mating rate depend on estrus stage, pregnancy
duration, and sex ration at birth. However, the accumulated rate of successful
delivery and litter size were significantly high at 1,330 dg/L DEHP water. The
number of epididymal sperm was significantly increased by drinking of 1,330 g/L
DEHP water. In addition, the number of follicles (primary, secondary, tertiary)
were more many than control at 1,330 /g/L DEHP water drunk mother. Though
further studies are needed to identify what are the mechanism of DEHP in
folliculogenesis and spermatogenesis. From this study we firstly report the
effect of low-dose chronic administration of DEHP with drinking could change the
ovarian follicle population size and spermatogenesis rate. Put together, those
finding is different from previous high-dose effects and suggest the
physiological role of DEHP in gonads and uterus.
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Affiliation(s)
- Sunyeong Cha
- Division of Developmental Biology and Physiology, School of Biological Sciences and Chemistry, Sungshin University, Seoul 02844, Korea
| | - Kayeon Jung
- Division of Developmental Biology and Physiology, School of Biological Sciences and Chemistry, Sungshin University, Seoul 02844, Korea
| | - Min Young Lee
- Division of Developmental Biology and Physiology, School of Biological Sciences and Chemistry, Sungshin University, Seoul 02844, Korea
| | - Yeon Jeong Hwang
- Division of Developmental Biology and Physiology, School of Biological Sciences and Chemistry, Sungshin University, Seoul 02844, Korea
| | - Eunhyeok Yang
- Division of Developmental Biology and Physiology, School of Biological Sciences and Chemistry, Sungshin University, Seoul 02844, Korea
| | - Sung-Ho Lee
- Dept. of Lifesicence, Sangmyung University, Soeul 03016, Korea
| | - Hyo-Il Jung
- School of Mechanical Engineering, Yonsei University, Seoul 03722, Korea
| | - Yong-Pil Cheon
- Division of Developmental Biology and Physiology, School of Biological Sciences and Chemistry, Sungshin University, Seoul 02844, Korea
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