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Yang YF, Cheng SY, Wang YL, Yue ZP, Yu YX, Chen YZ, Wang WK, Xu ZR, Qi ZQ, Liu Y. Accumulated inflammation and fibrosis participate in atrazine induced ovary toxicity in mice. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 360:124672. [PMID: 39103034 DOI: 10.1016/j.envpol.2024.124672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2024] [Revised: 07/24/2024] [Accepted: 08/03/2024] [Indexed: 08/07/2024]
Abstract
Atrazine is a widely used herbicide in agricultural production. Previous studies have shown that atrazine affects hormone secretion and oocyte maturation in female reproduction. However, the specific mechanism by which atrazine affects ovarian function remains unclear. In this study, using a mouse gastric lavage model, we report that four weeks of atrazine exposure affects body growth, interferes with the estrous cycle, and increases the number of atretic follicles in mice. The expression levels of follicle development related factors StAR, BMP15, and AMH decreased. Metabolomic analysis revealed that atrazine activates an inflammatory response in ovarian tissue. Further studies confirmed that the expression levels of TNF-α, IL-6, and NF-κB increased in the ovaries of mice exposed to atrazine. Additionally, α-smooth muscle actin (α-SMA) accumulated in ovarian tissue, and transforming growth factor-β (TGF-β) signaling was activated, indicating the occurrence of tissue fibrosis. Moreover, mice exposed to atrazine produced fewer oocytes and exhibited reduced embryonic development. Furthermore, mice exposed to atrazine exhibited altered gut microbiota abundance and a disrupted colon barrier. Collectively, these findings suggest that atrazine exposure induces ovarian inflammation and fibrosis, disrupts ovarian homeostasis, and impairs follicle maturation, ultimately reducing oocyte quality.
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Affiliation(s)
- Yi-Fan Yang
- Medical College, Guangxi University, Nanning, Guangxi, 530004, China
| | - Si-Yao Cheng
- Medical College, Guangxi University, Nanning, Guangxi, 530004, China
| | - Ya-Long Wang
- Center for Reproductive Medicine, Maternity and Child Health Care Hospital in Xiangtan, Xiangtan, Hunan, 411100, China
| | - Zhao-Ping Yue
- Center for Reproductive Medicine, Maternity and Child Health Care Hospital in Xiangtan, Xiangtan, Hunan, 411100, China
| | - Yu-Xi Yu
- Medical College, Guangxi University, Nanning, Guangxi, 530004, China
| | - Yan-Zhu Chen
- Medical College, Guangxi University, Nanning, Guangxi, 530004, China
| | - Wen-Ke Wang
- Medical College, Guangxi University, Nanning, Guangxi, 530004, China
| | - Zhi-Ran Xu
- Translational Medicine Research Center, Ruikang Hospital Affiliated to Guangxi University of Chinese Medicine, Nanning, Guangxi, 530011, China
| | - Zhong-Quan Qi
- Medical College, Guangxi University, Nanning, Guangxi, 530004, China
| | - Yu Liu
- Medical College, Guangxi University, Nanning, Guangxi, 530004, China.
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2
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Zhao H, Qian H, Cui J, Ge Z, Shi J, Huo Y, Zhang Y, Ye L. Endocrine toxicity of atrazine and its underlying mechanisms. Toxicology 2024; 505:153846. [PMID: 38815618 DOI: 10.1016/j.tox.2024.153846] [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: 04/25/2024] [Revised: 05/20/2024] [Accepted: 05/24/2024] [Indexed: 06/01/2024]
Abstract
Atrazine (ATR) is one of the most widely utilized herbicides globally and is prevalent in the environment due to its extensive use and long half-life. It can infiltrate the human body through drinking water, ingestion, and dermal contact, and has been recognized as an environmental endocrine disruptor. This study aims to comprehensively outline the detrimental impacts of ATR on the endocrine system. Previous research indicates that ATR is harmful to various bodily systems, including the reproductive system, nervous system, adrenal glands, and thyroi d gland. The toxic effects of ATR on the endocrine system and its underlying molecular mechanisms are summarized as follows: influencing the expression of kisspeptin in the HPG axis, consequently affecting steroid synthesis; disrupting DNA synthesis and meiosis, as well as modifying DNA methylation levels, leading to reproductive and developmental toxicity; impacting dopamine by altering Nurr1, VMAT2, and DAT expression, consequently affecting dopamine synthesis and transporter expression, and influencing other neurotransmitters, resulting in neurotoxicity; and changing adipose tissue synthesis and metabolism by reducing basal metabolism, impairing cellular oxidative phosphorylation, and inducing insulin resistance. Additionally, a compilation of natural products used to mitigate the toxic effects of ATR has been provided, encompassing melatonin, curcumin, quercetin, lycopene, flavonoids, vitamin C, vitamin E, and other natural remedies. It is important to note that existing research predominantly relies on in vitro and ex vivo experiments, with limited population-based empirical evidence available.
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Affiliation(s)
- Haotang Zhao
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China
| | - Honghao Qian
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China
| | - Jianwei Cui
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China
| | - Zhili Ge
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China
| | - Jingjing Shi
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China
| | - Yingchao Huo
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China
| | - Yuezhu Zhang
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China.
| | - Lin Ye
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China.
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3
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Zhao J, Huang G, Fu Y, Lou Z, Yu H, Wang W, Mao D. Exposure to atrazine stimulates progesterone secretion and induces oxidative stress, inflammation, and apoptosis in the ovary of pseudopregnant rats. CHEMOSPHERE 2024; 356:141906. [PMID: 38583534 DOI: 10.1016/j.chemosphere.2024.141906] [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: 12/24/2023] [Revised: 03/04/2024] [Accepted: 04/03/2024] [Indexed: 04/09/2024]
Abstract
Atrazine (ATR) is one of the most commonly used herbicides worldwide. As an endocrine disruptor, it causes ovarian dysfunction, but the mechanism is unclear. We hypothesized that ATR could affect ovarian steroidogenesis, oxidative stress, inflammation, and apoptosis. In the current study, rats aged 28 days were treated with PMSG and HCG to obtain amounts of corpora lutea. Then, rats were injected with ATR (50 mg/kg/day) or saline (0.9%) for 7 days. Sera were collected to detect biochemical indices and progesterone (P4) level, ovaries were collected for antioxidant status, HE, qPCR, and WB analysis. Results showed that ATR exposure affected growth performance as well as serum TP, GLB, and ALB levels, increased serum P4 level and ovarian mRNA and protein levels of StAR, CYP11A1, and HSD3B. ATR treatment increased ovarian mRNA and protein levels of CREB but not PKA expression. ATR treatment increased ovarian mRNA abundances of Nrf-2 and Nqo1, MDA level, and decreased SOD, GST, and T-AOC levels. ATR exposure increased the mRNA abundances of pro-inflammatory cytokines including Tnf-α, Il-1β, Il-6, Il-18, and Inos. ATR exposure increased the mRNA and protein level of Caspase 3 and the ratio of BAX/BCL-2. In conclusion, NRF-2/NQO1 signaling pathway and CREB might be involved in the regulation of ATR in luteal steroidogenesis, oxidative stress, inflammation, and apoptosis in rat ovary.
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Affiliation(s)
- Jie Zhao
- Nanjing Agricultural University, Nanjing, 210095, China
| | | | - Yuting Fu
- Nanjing Agricultural University, Nanjing, 210095, China
| | - Zhangbo Lou
- Nanjing Agricultural University, Nanjing, 210095, China
| | - Hao Yu
- Nanjing Agricultural University, Nanjing, 210095, China
| | - Wei Wang
- Nanjing Agricultural University, Nanjing, 210095, China
| | - Dagan Mao
- Nanjing Agricultural University, Nanjing, 210095, China.
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4
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Lu YS, Wen X, Chen J, He XR, Yu J, Qiu J, Qian YZ, Xu YY. Multiomics reveals new biomarkers and mechanistic insights into the combined toxicity effects of 2,2',4,4',5,5'-hexachlorobiphenyl and atrazine exposures in MCF-7 cells. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 333:122030. [PMID: 37336346 DOI: 10.1016/j.envpol.2023.122030] [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: 04/30/2023] [Revised: 06/01/2023] [Accepted: 06/11/2023] [Indexed: 06/21/2023]
Abstract
Humans are constantly exposed to complicated chemical mixtures from the environment and food rather than being exposed to a single pollutant. The underlying mechanisms of the complicated combined toxicity of endocrine disrupting chemicals (EDCs) are still mainly unexplored. In this study, two representative EDCs, 2,2',4,4',5,5'-hexachlorobiphenyl (PCB153) and atrazine (ATZ), were selected to explore their combined effects on MCF-7 cell proliferation at environmental exposure concentrations by an integrated analysis of metabolomics and transcriptomics. The results showed that 1 μM ATZ and PCB153 combined exposure significantly accelerated MCF-7 cell growth by 18.2%. More than 400 metabolites detected by UHPLC-QTOF/MS were used to observe metabolism differences induced by binary mixtures. Metabolomics analysis verified that ATZ and PCB153 exposure alone or in combination could have an additive effect on metabolism and induce significant disruption to glycolysis, purine metabolism and the TCA cycle, which provide energy demand and biosynthetic substrates for cell proliferation. Compared to PCB153 and ATZ exposure alone, a combined effect was observed in purine and pyrimidine metabolic pathways. Hexokinase 3 (HK3) and cytochrome P450 19 subfamily A1 (CYP19A1) were identified as differentially expressed genes based on transcriptomic analysis. By integrating metabolome and transcriptome analysis, the proliferation effects of ATZ and PCB153 were induced at low doses in MCF-7 cells through potential interference with the downstream transcription signaling of CYP19A1. Furthermore, molecular docking indicated that PCB153 and ATZ directly affected CYP19A1. Altogether, the regulation of pivotal metabolites and differentially expressed genes could provide helpful information to reveal the mechanism by which PCB153 and ATZ affect MCF-7 cell proliferation.
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Affiliation(s)
- Yu-Shun Lu
- Key Laboratory of Agro-Product Quality and Safety, Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Xing Wen
- Key Laboratory of Agro-Product Quality and Safety, Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, 100081, China; Faculty of Printing and Packaging and Digital Media, Xi' an University of Technology, Xi'an, 710048, China
| | - Ju Chen
- Key Laboratory of Agro-Product Quality and Safety, Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, 100081, China; Faculty of Printing and Packaging and Digital Media, Xi' an University of Technology, Xi'an, 710048, China
| | - Xiao-Rong He
- Key Laboratory of Agro-Product Quality and Safety, Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, 100081, China; Faculty of Printing and Packaging and Digital Media, Xi' an University of Technology, Xi'an, 710048, China
| | - Jiang Yu
- Faculty of Printing and Packaging and Digital Media, Xi' an University of Technology, Xi'an, 710048, China
| | - Jing Qiu
- Key Laboratory of Agro-Product Quality and Safety, Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Yong-Zhong Qian
- Key Laboratory of Agro-Product Quality and Safety, Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Yan-Yang Xu
- Key Laboratory of Agro-Product Quality and Safety, Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
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Cheng M, Song Z, Guo Y, Luo X, Li X, Wu X, Gong Y. 1α,25-Dihydroxyvitamin D 3 Improves Follicular Development and Steroid Hormone Biosynthesis by Regulating Vitamin D Receptor in the Layers Model. Curr Issues Mol Biol 2023; 45:4017-4034. [PMID: 37232725 DOI: 10.3390/cimb45050256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 04/17/2023] [Accepted: 04/27/2023] [Indexed: 05/27/2023] Open
Abstract
1α,25-Dihydroxyvitamin D3 (VitD3) is the active form of vitamin D, and it regulates gene expression and protein synthesis in mammalian follicle development. However, the function of VitD3 in the follicular development of layers remains unclear. This study investigated, through in vivo and in vitro experiments, the effects of VitD3 on follicle development and steroid hormone biosynthesis in young layers. In vivo, ninety 18-week-old Hy-Line Brown laying hens were randomly divided into three groups for different treatments of VitD3 (0, 10, and 100 μg/kg). VitD3 supplementation promoted follicle development, increasing the number of small yellow follicles (SYFs) and large yellow follicles (LYFs) and the thickness of the granulosa layer (GL) of SYFs. Transcriptome analysis revealed that VitD3 supplementation altered gene expression in the ovarian steroidogenesis, cholesterol metabolism, and glycerolipid metabolism signaling pathways. Steroid hormone-targeted metabolomics profiling identified 20 steroid hormones altered by VitD3 treatment, with 5 being significantly different among the groups. In vitro, it was found that VitD3 increased cell proliferation, promoted cell-cycle progression, regulated the expression of cell-cycle-related genes, and inhibited the apoptosis of granulosa cells from pre-hierarchical follicles (phGCs) and theca cells from prehierarchical follicles (phTCs). In addition, the steroid hormone biosynthesis-related genes, estradiol (E2) and progesterone (P4) concentrations, and vitamin D receptor (VDR) expression level was significantly altered by VitD3. Our findings identified that VitD3 altered the gene expression related to steroid metabolism and the production of testosterone, estradiol, and progesterone in the pre-hierarchical follicles (PHFs), resulting in positive effects on poultry follicular development.
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Affiliation(s)
- Manman Cheng
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Zhenquan Song
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Yan Guo
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Xuliang Luo
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Xuelian Li
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Xiaohui Wu
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Yanzhang Gong
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
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6
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Dai T, Kang X, Yang C, Mei S, Wei S, Guo X, Ma Z, Shi Y, Chu Y, Dan X. Integrative Analysis of miRNA-mRNA in Ovarian Granulosa Cells Treated with Kisspeptin in Tan Sheep. Animals (Basel) 2022; 12:2989. [PMID: 36359113 PMCID: PMC9656243 DOI: 10.3390/ani12212989] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/10/2024] Open
Abstract
Kisspeptin is a peptide hormone encoded by the kiss-1 gene that regulates animal reproduction. Our studies revealed that kisspeptin can regulate steroid hormone production and promote cell proliferation in ovarian granulosa cells of Tan sheep, but the mechanism has not yet been fully understood. We speculated that kisspeptin might promote steroid hormone production and cell proliferation by mediating the expression of specific miRNA and mRNA in granulosa cells. Accordingly, after granulosa cells were treated with kisspeptin, the RNA of cells was extracted to construct a cDNA library, and miRNA-mRNA sequencing was performed. Results showed that 1303 expressed genes and 605 expressed miRNAs were identified. Furthermore, eight differentially expressed miRNAs were found, and their target genes were significantly enriched in progesterone synthesis/metabolism, hormone biosynthesis, ovulation cycle, and steroid metabolism regulation. Meanwhile, mRNA was significantly enriched in steroid biosynthesis, IL-17 signaling pathway, and GnRH signaling pathway. Integrative analysis of miRNA-mRNA revealed that the significantly different oar-let-7b targets eight genes, of which EGR1 (early growth response-1) might play a significant role in regulating the function of granulosa cells, and miR-10a regulates lipid metabolism and steroid hormone synthesis by targeting HNRNPD. Additionally, PPI analysis revealed genes that are not miRNA targets but crucial to other biological processes in granulosa cells, implying that kisspeptin may also indirectly regulate granulosa cell function by these pathways. The findings of this work may help understand the molecular mechanism of kisspeptin regulating steroid hormone secretion, cell proliferation, and other physiological functions in ovarian granulosa cells of Tan sheep.
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7
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Pre- and Postnatal Dietary Exposure to a Pesticide Cocktail Disrupts Ovarian Functions in 8-Week-Old Female Mice. Int J Mol Sci 2022; 23:ijms23147525. [PMID: 35886873 PMCID: PMC9317375 DOI: 10.3390/ijms23147525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 06/28/2022] [Accepted: 07/04/2022] [Indexed: 11/21/2022] Open
Abstract
Female infertility has a multifactorial origin, and exposure to contaminants, including pesticides, with endocrine-disrupting properties is considered to be involved in this reproductive disorder, especially when it occurs during early life. Pesticides are present in various facets of the environment, and consumers are exposed to a combination of multiple pesticide residues through food intake. The consequences of such exposure with respect to female fertility are not well known. Therefore, we aimed to assess the impact of pre- and postnatal dietary exposure to a pesticide mixture on folliculogenesis, a crucial process in female reproduction. Mice were exposed to the acceptable daily intake levels of six pesticides in a mixture (boscalid, captan, chlorpyrifos, thiacloprid, thiophanate and ziram) from foetal development until 8 weeks old. Female offspring presented with decreased body weight at weaning, which was maintained at 8 weeks old. This was accompanied by an abnormal ovarian ultrastructure, a drastic decrease in the number of corpora lutea and progesterone levels and an increase in ovary cell proliferation. In conclusion, this study shows that this pesticide mixture that can be commonly found in fruits in Europe, causing endocrine disruption in female mice with pre- and postnatal exposure by disturbing folliculogenesis, mainly in the luteinisation process.
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8
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Ndufeiya-Kumasi LC, Abarikwu SO, Ohanador R, Omoregie ES. Curcumin improves the protective effects of quercetin against atrazine-induced testicular injury in adult Wistar rats. Andrologia 2022; 54:e14445. [PMID: 35437774 DOI: 10.1111/and.14445] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Revised: 03/22/2022] [Accepted: 04/01/2022] [Indexed: 11/29/2022] Open
Abstract
This study evaluated the beneficial protective effect of cotreatment of curcumin (CUR) and quercetin (QUE) on atrazine (ATZ)-induced testicular toxicity in rats. ATZ challenge diminished luteinizing hormone, follicular stimulating hormone, testosterone and myeloperoxidase enzyme activity, but these effects were attenuated on co-treatment with CUR and QUE. Also, co-treatment of CUR + QUE was better than separate administration of QUE at diminishing malondialdehyde and glutathione and improving tumour necrosis factor-α concentration, germ cell numbers (spermatogonia, spermatocytes and round spermatids) and epididymal sperm quality. Histologically, smaller sized tubules with degenerated epithelia and few germ cells were seen in the seminiferous tubules of the ATZ group whereas CUR + QUE pretreatment improved the histo-morphologic features of the tubules compared to the ATZ group and was also better than separate administration of QUE. We conclude that CUR can improve the protective effects of QUE against ATZ-induced testicular injury by enhancing the levels of reproductive hormones, recovering testicular biochemical parameters and improving the histological features of the testes.
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Affiliation(s)
| | - Sunny O Abarikwu
- Department of Biochemistry, Faculty of Science, University of Port Harcourt, Choba, Nigeria
| | - Robinson Ohanador
- Department of Biochemistry, Faculty of Science, University of Port Harcourt, Choba, Nigeria
| | - Ehimwenma S Omoregie
- Department of Biochemistry, Faculty of Life Sciences, University of Benin, Benin City, Nigeria
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9
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Zumpano R, Manghisi M, Polli F, D’Agostino C, Ietto F, Favero G, Mazzei F. Label-free magnetic nanoparticles-based electrochemical immunosensor for atrazine detection. Anal Bioanal Chem 2022; 414:2055-2064. [DOI: 10.1007/s00216-021-03838-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 11/29/2021] [Accepted: 12/07/2021] [Indexed: 11/28/2022]
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10
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Bao Y, Yao X, Li X, Ei-Samahy MA, Yang H, Liang Y, Liu Z, Wang F. INHBA transfection regulates proliferation, apoptosis and hormone synthesis in sheep granulosa cells. Theriogenology 2021; 175:111-122. [PMID: 34537472 DOI: 10.1016/j.theriogenology.2021.09.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Revised: 09/07/2021] [Accepted: 09/09/2021] [Indexed: 12/14/2022]
Abstract
Inhibin subunit beta A (INHBA) participates in the synthesis of inhibin A, activin A and activin AB. Here we investigated the effect and molecular mechanism of INHBA on proliferation, apoptosis and hormone synthesis in sheep granulosa cells (GCs) using in vitro transfection. We first noticed that INHBA expression increased with follicle diameter and was widely distributed in ovarian tissue. The proliferation rate of GCs was significantly increased and decreased with overexpression and silence of INHBA, respectively, compared with the negative controls. INHBA transfection affected GC proliferation and apoptosis, regulating the expression of many cell cycle-related and apoptosis-related genes. INHBA overexpression significantly decreased activin and estradiol secretion while increasing inhibin and progesterone secretion. The expression of follicle-stimulating hormone beta subunit was significantly decreased and increased with INHBA overexpression and knockdown, respectively. Notably, silence of INHBA inhibited the expression of many transforming growth factor beta-related genes. Overall, the functional molecule of INHBA gene may be associated with follicular development via regulating proliferation, apoptosis and folliculogenesis-related hormone secretion of sheep GCs. In addition, our findings may contribute to a better understanding of the law of follicular development and thus improve the reproductive performance of female animals.
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Affiliation(s)
- Yongjin Bao
- Hu Sheep Academy, Nanjing Agricultural University, Nanjing, 210095, China; Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xiaolei Yao
- Hu Sheep Academy, Nanjing Agricultural University, Nanjing, 210095, China; Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xiaodan Li
- Hu Sheep Academy, Nanjing Agricultural University, Nanjing, 210095, China; Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China
| | - M A Ei-Samahy
- Hu Sheep Academy, Nanjing Agricultural University, Nanjing, 210095, China; Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China
| | - Hua Yang
- Hu Sheep Academy, Nanjing Agricultural University, Nanjing, 210095, China; Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yaxu Liang
- Hu Sheep Academy, Nanjing Agricultural University, Nanjing, 210095, China; Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China
| | - Zifei Liu
- Hu Sheep Academy, Nanjing Agricultural University, Nanjing, 210095, China; Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China
| | - Feng Wang
- Hu Sheep Academy, Nanjing Agricultural University, Nanjing, 210095, China; Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China.
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11
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Sadeghnia H, Shahba S, Ebrahimzadeh-Bideskan A, Mohammadi S, Malvandi AM, Mohammadipour A. Atrazine neural and reproductive toxicity. TOXIN REV 2021. [DOI: 10.1080/15569543.2021.1966637] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Hamidreza Sadeghnia
- Department of Pharmacology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
- Neurocognitive Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Sara Shahba
- Medical Biotechnology Research Center, School of Paramedicine, Guilan University of Medical Sciences, Rasht, Iran
| | | | - Shabnam Mohammadi
- Department of Anatomy and Cell Biology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Abbas Mohammadipour
- Department of Anatomy and Cell Biology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
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12
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Expression of steroidogenic enzymes and TGFβ superfamily members in follicular cells of prepubertal gilts with distinct endocrine profiles. ZYGOTE 2021; 30:65-71. [PMID: 33966679 DOI: 10.1017/s0967199421000289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Regulation of the transforming growth factor beta (TGFβ) superfamily by gonadotrophins in swine follicular cells is not fully understood. This study evaluated the expression of steroidogenic enzymes and members of the TGFβ superfamily in prepubertal gilts allocated to three treatments: 1200 IU eCG at D -3 (eCG); 1200 IU eCG at D -6 plus 500 IU hCG at D -3 (eCG + hCG); and the control, composed of untreated gilts. Blood samples and ovaries were collected at slaughter (D0) and follicular cells were recovered thereafter. Relative gene expression was determined by real-time PCR. Serum progesterone levels were greater in the eCG + hCG group compared with the other groups (P < 0.01). No differences were observed in the expression of BMP15, BMPR1A, BMPR2, FSHR, GDF9, LHCGR and TGFBR1 (P > 0.05). Gilts from the eCG group presented numerically greater mean expression of CYP11A1 mRNA than in the control group that approached statistical significance (P = 0.08) and greater expression of CYP19A1 than in both the eCG and the control groups (P < 0.05). Expression of BMPR1B was lower in the eCG + hCG treatment group compared with the control (P < 0.05). In conclusion, eCG treatment increased the relative expression of steroidogenic enzymes, whereas treatment with eCG + hCG increased serum progesterone levels. Although most of the evaluated TGFβ members were not regulated after gonadotrophin treatment, the downregulation of BMPR1B observed after treatment with eCG + hCG and suggests a role in luteinization regulation.
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13
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Song Y, Li R. Effects of Environment and Lifestyle Factors on Anovulatory Disorder. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1300:113-136. [PMID: 33523431 DOI: 10.1007/978-981-33-4187-6_5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Anovulatory disorder comprises around 30% of female infertility. The origin of ovulatory failure is rooted in pituitary FSH secretion. Any factor or process that disrupts the finely tuned interactions of hypothalamo-pituitary-ovarian axis can potentially lead to anovulation. The World Health Organization (WHO) has classified anovulatory disorders into three categories: hypothalamic-pituitary failure, hypothalamic-pituitary dysregulation, and ovarian failure. Due to industrial development, environmental pollution, and global warming, the human living environment has undergone tremendous changes. Industrial waste, noise, pesticides, fertilizers, and vehicular emission are visible pollutants responsible for environmental contamination and ill effects on health of all living systems. A considerable body of research suggests that chemical exposures in the environment or workplace may be associated with endocrine disruption of the synthesis, secretion, transport, binding, or elimination of natural hormones. For instance, some advanced biological mechanisms suggest that heavy metals may affect progesterone production, which possibly disturbs endocrine function in pregnant women. On the other hand, our lifestyle factors have also changed accordingly, which greatly influence overall health and well-being, including fertility. Many lifestyle factors such as nutrition, weight, exercise, and psychological stress can have substantial effects on female ovulation.
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Affiliation(s)
- Ying Song
- National Clinical Research Center for Obstetrics and Gynecology, Beijing, China
- Key Laboratory of Assisted Reproduction (Peking University), Ministry of Education, Beijing, China
- Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Beijing, China
| | - Rong Li
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China.
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Yao X, Wang Z, Gao X, Li X, Yang H, Ei-Samahy MA, Bao Y, Xiao S, Meng F, Wang F. Unconservative_15_2570409 suppresses progesterone receptor expression in the granulosa cells of Hu sheep. Theriogenology 2020; 157:303-313. [PMID: 32827988 DOI: 10.1016/j.theriogenology.2020.08.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 07/27/2020] [Accepted: 08/10/2020] [Indexed: 12/17/2022]
Abstract
Female fertility potential depends on the number of mature follicles; however, the underlying molecular mechanisms remain unclear. Based on previously generated miRNA and mRNA sequencing data of healthy ovarian follicles (>5 mm in diameter) isolated from Hu sheep with different prolificacy, we investigated the roles of a novel miRNA (unconservative_15_2570409) and the progesterone receptor (PGR) gene in follicular development. During the periovulatory phase, the expression of unconservative_15_2570409 and PGR was lower and higher, respectively, in the >5 mm follicles of high prolificacy (HP) ewes than in those of low prolificacy (LP) ewes and in the >3 mm follicles than in the smaller follicles of the HP ewes. Subsequently, the granulosa cells (GCs) of Hu sheep were used as an in vitro model. PGR overexpression significantly increased the mRNA expression of steroidogenic acute regulatory protein (StAR), 3-beta-hydroxysteroid dehydrogenase/isomerase (3β-HSD), and cytochrome P450 family 19 subfamily A member 1 (CYP19A1), which promoted the secretion of progesterone (P4) and estradiol (E2). PGR knockdown significantly downregulated the levels of StAR and 3β-HSD mRNA and decreased the production of P4, whereas no effects on CYP19A1 mRNA expression and E2 levels were observed. We also found the negative regulatory effect of unconservative_15_2570409 on the mRNA and protein expression of PGR by targeting the 3'-untranslated region. The regulation of PGR levels resulted in a corresponding change in the ADAMTS1, PPAR-γ, and CTSL gene transcripts, which are important for follicular maturation and ovulation. Additionally, PGR, ADAMTS1, and PPAR-γ were predominantly localized in the GCs. Collectively, our results suggest that by regulating PGR expression and consequently affecting the expression of target genes and steroidogenesis, unconservative_15_2570409 plays a role in follicular development during the periovulatory stage, which provides novel insights into the molecular mechanisms affecting Hu sheep prolificacy.
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Affiliation(s)
- Xiaolei Yao
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China
| | - Zhibo Wang
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xiaoxiao Gao
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xiaodan Li
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China
| | - Hua Yang
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China
| | - M A Ei-Samahy
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yongjin Bao
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China
| | - Shenhua Xiao
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China
| | - Fanxing Meng
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China
| | - Feng Wang
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China.
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15
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Environmental Impact on Male (In)Fertility via Epigenetic Route. J Clin Med 2020; 9:jcm9082520. [PMID: 32764255 PMCID: PMC7463911 DOI: 10.3390/jcm9082520] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 07/21/2020] [Accepted: 07/31/2020] [Indexed: 12/14/2022] Open
Abstract
In the last 40 years, male reproductive health-which is very sensitive to both environmental exposure and metabolic status-has deteriorated and the poor sperm quality observed has been suggested to affect offspring development and its health in adult life. In this scenario, evidence now suggests that epigenetics shapes endocrine functions, linking genetics and environment. During fertilization, spermatozoa share with the oocyte their epigenome, along with their haploid genome, in order to orchestrate embryo development. The epigenetic signature of spermatozoa is the result of a dynamic modulation of the epigenetic marks occurring, firstly, in the testis-during germ cell progression-then, along the epididymis, where spermatozoa still receive molecules, conveyed by epididymosomes. Paternal lifestyle, including nutrition and exposure to hazardous substances, alters the phenotype of the next generations, through the remodeling of a sperm epigenetic blueprint that dynamically reacts to a wide range of environmental and lifestyle stressors. With that in mind, this review will summarize and discuss insights into germline epigenetic plasticity caused by environmental stimuli and diet and how spermatozoa may be carriers of induced epimutations across generations through a mechanism known as paternal transgenerational epigenetic inheritance.
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16
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Yang Y, Zhou Y, Pan L, Xu R, Li D. Benzo[a]pyrene exposure induced reproductive endocrine-disrupting effects via the steroidogenic pathway and estrogen signaling pathway in female scallop Chlamys farreri. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 726:138585. [PMID: 32315858 DOI: 10.1016/j.scitotenv.2020.138585] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 04/07/2020] [Accepted: 04/07/2020] [Indexed: 06/11/2023]
Abstract
Benzo[a]pyrene (B[a]P), as one of the typical polycyclic aromatic hydrocarbons and environmental contaminants, may cause endocrine disrupting effects and reproductive impairments in bivalves. However, the molecular mechanisms are still not fully understood. In this study, three reproductive stages (proliferative stage, growing stage and mature stage) of female scallops Chlamys farreri were exposed to B[a]P at 0, 0.38 and 3.8 μg/L. The present study determined the adverse effects of B[a]P on gonadosomatic index, circulating hormone concentrations, endocrine-associated gene expression and ovarian histology. Significant decrease in sex hormones including progesterone (P), testosterone (T) and 17β-estradiol (E2), was observed in B[a]P-treated C. farreri at growing stage and mature stage. These effects were associated with down-regulated expression of steroidogenic enzymes, including 3β-HSD, CYP17 and 17β-HSD, which were regulated by the upstream adenylate cyclase (Adcy) - protein kinase (PKA) signaling pathway. Ovarian transcript levels of estrogen receptor (ER) and caveolin-1 (cav-1) were decreased in B[a]P-treated C. farreri. Vitellogenin (Vtg), an estrogen-mediated gene involved in ovarian development, was down-regulated by B[a]P. Furthermore, ovarian histology was investigated to clarify the impairment of B[a]P on ovaries at growing stage and mature stage. Overall, the present results elucidated the anti-estrogenic mechanisms along the steroidogenic pathway and estrogen signaling pathway for the stage-dependent endocrine-disrupting effects of B[a]P. This finding provides important information regarding to the underlying molecular mechanisms of B[a]P-induced endocrine disruption in different reproductive stages of bivalves. In addition, the adverse effects should be taken into concertation during protection of bivalves germplasm resources and comprehensive evaluation of ecological risks.
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Affiliation(s)
- Yingying Yang
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266003, PR China
| | - Yueyao Zhou
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266003, PR China
| | - Luqing Pan
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266003, PR China.
| | - Ruiyi Xu
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266003, PR China
| | - Dongyu Li
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266003, PR China
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17
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Cabry R, Merviel P, Madkour A, Lefranc E, Scheffler F, Desailloud R, Bach V, Benkhalifa M. The impact of endocrine disruptor chemicals on oocyte/embryo and clinical outcomes in IVF. Endocr Connect 2020; 9:R134-R142. [PMID: 32380469 PMCID: PMC7354731 DOI: 10.1530/ec-20-0135] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 05/07/2020] [Indexed: 12/17/2022]
Abstract
The negative impact of endocrine-disrupting pesticides on human fertility is now a key issue in reproductive health. There are much fewer literature data about the impact of pesticide exposure on women than on men and very few studies of women participating in an in vitro fertilization (IVF) programme. In the present review, we found that (1) various pesticides with an endocrine-disrupting action are associated with poor oocyte maturation and competency, embryonic defects and poor IVF outcomes, and (2) some pesticide compounds are linked to specific causes of female infertility, such as premature ovarian insufficiency, polycystic ovarian syndrome, and endometriosis. IVF participants living in agricultural regions should be informed about the fertility decline, low ongoing pregnancy rates, and elevated risk of miscarriage associated with exposure to high doses of pesticides.
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Affiliation(s)
| | | | - Aicha Madkour
- Mohammed V University of Rabat, Reproductive Medicine, Rabat, Morocco
| | | | | | | | | | - Moncef Benkhalifa
- Amiens University, Amiens, Haut-de-France, France
- Correspondence should be addressed to M Benkhalifa:
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18
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Warner GR, Mourikes VE, Neff AM, Brehm E, Flaws JA. Mechanisms of action of agrochemicals acting as endocrine disrupting chemicals. Mol Cell Endocrinol 2020; 502:110680. [PMID: 31838026 PMCID: PMC6942667 DOI: 10.1016/j.mce.2019.110680] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 12/06/2019] [Accepted: 12/10/2019] [Indexed: 02/07/2023]
Abstract
Agrochemicals represent a significant class of endocrine disrupting chemicals that humans and animals around the world are exposed to constantly. Agrochemicals can act as endocrine disrupting chemicals through a variety of mechanisms. Recent studies have shown that several mechanisms of action involve the ability of agrochemicals to mimic the interaction of endogenous hormones with nuclear receptors such as estrogen receptors, androgen receptors, peroxisome proliferator activated receptors, the aryl hydrocarbon receptor, and thyroid hormone receptors. Further, studies indicate that agrochemicals can exert toxicity through non-nuclear receptor-mediated mechanisms of action. Such non-genomic mechanisms of action include interference with peptide, steroid, or amino acid hormone response, synthesis and degradation as well as epigenetic changes (DNA methylation and histone modifications). This review summarizes the major mechanisms of action by which agrochemicals target the endocrine system.
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Affiliation(s)
- Genoa R Warner
- Department of Comparative Biosciences, University of Illinois at Urbana-Champaign, Urbana, 61802, IL, United States
| | - Vasiliki E Mourikes
- Department of Comparative Biosciences, University of Illinois at Urbana-Champaign, Urbana, 61802, IL, United States
| | - Alison M Neff
- Department of Comparative Biosciences, University of Illinois at Urbana-Champaign, Urbana, 61802, IL, United States
| | - Emily Brehm
- Department of Comparative Biosciences, University of Illinois at Urbana-Champaign, Urbana, 61802, IL, United States
| | - Jodi A Flaws
- Department of Comparative Biosciences, University of Illinois at Urbana-Champaign, Urbana, 61802, IL, United States.
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19
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Bu Q, Wang X, Xie H, Zhong K, Wu Y, Zhang J, Wang Z, Gao H, Huang Y. 180 Day Repeated-Dose Toxicity Study on Forchlorfenuron in Sprague-Dawley Rats and Its Effects on the Production of Steroid Hormones. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:10207-10213. [PMID: 31426637 DOI: 10.1021/acs.jafc.9b03855] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Forchlorfenuron (FCF) is a synthetic plant cytokine-like growth regulator that is massively used in agriculture to increase fruit size and weight. There is an insufficiency of published data on the safety profile of FCF, especially as it is involved in ovarian function. In our study, a chronic toxicity study on FCF was conducted and designed by feeding at dosage levels of 0, 0.6, and 60 mg/kg body weight in Sprague-Dawley rats for 180 days. During the 180 day FCF administration, no biologically relevant changes were observed in the body weight, clinical signs, food consumption, organ weight, hematology, and clinical biochemistry of the tested animals. However, macroscopic and microscopic evaluations revealed the presence of severe hydrometra in the uterus and pathological changes in the ovaries. In addition, it was found that FCF inhibited the proliferation of granulosa cells (GCs) and H295R cells, as well as downregulated the expression of CYP17A1 and CYP19A1 in estradiol and progesterone production, resulting in decreased steroidogenesis in GCs and H295R cells. Taken together, our findings suggest that FCF has potential adverse effects on the ovaries and on steroidogenesis.
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Affiliation(s)
- Qian Bu
- Department of Food Science and Technology, College of Biomass and Engineering and Healthy Food Evaluation Research Center , Sichuan University , Chengdu 610065 , China
| | | | | | - Kai Zhong
- Department of Food Science and Technology, College of Biomass and Engineering and Healthy Food Evaluation Research Center , Sichuan University , Chengdu 610065 , China
| | - Yanping Wu
- Department of Food Science and Technology, College of Biomass and Engineering and Healthy Food Evaluation Research Center , Sichuan University , Chengdu 610065 , China
| | - Jiaqi Zhang
- Department of Food Science and Technology, College of Biomass and Engineering and Healthy Food Evaluation Research Center , Sichuan University , Chengdu 610065 , China
| | | | - Hong Gao
- Department of Food Science and Technology, College of Biomass and Engineering and Healthy Food Evaluation Research Center , Sichuan University , Chengdu 610065 , China
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20
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Rózsa G, Fazekas Á, Náfrádi M, Alapi T, Schrantz K, Takács E, Wojnárovits L, Fath A, Oppenländer T. Transformation of atrazine by photolysis and radiolysis: kinetic parameters, intermediates and economic consideration. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:23268-23278. [PMID: 31197664 DOI: 10.1007/s11356-019-05599-9] [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: 01/17/2019] [Accepted: 05/27/2019] [Indexed: 05/07/2023]
Abstract
Four techniques, UV254 nm photolysis, vacuum ultraviolet (VUV172 nm) photolysis, combined UV254 nm/VUV185 nm photolysis and gamma (γ) radiolysis were used to induce the transformation of atrazine in aqueous solution. The effects of dissolved oxygen (atrazine concentration 1 × 10-4 mol L-1 and 4.6 × 10-7 mol L-1) and matrix (high purity water/purified wastewater, atrazine concentration 4.6 × 10-7 mol L-1) and the electric energy requirements were investigated. The calculation of the energy input in cases of the photolyses was based on the lamp's power. In radiolysis, the absorbed dose (J kg-1) was the basis. In UV photolysis, atrazine transforms to atrazine-2-hydroxy; this product practically does not degrade during UV photolysis; due to this reason, the mineralisation is very slow. This and some other products of atrazine decomposition degrade only in radical reactions. Dissolved oxygen usually slightly enhances the degradation rate. At 10-7 mol L-1 concentration level, the matrix, high purity water/purified wastewater, has not much influence on the degradation rates in UV photolysis and radiolysis. In the VUV and UV/VUV systems, considerable matrix effects were observed. Comparing the electric energy requirements of the four degradation processes, radiolysis was found to be the economically most feasible method, requiring 1-2 orders of magnitude less electric energy than UV/VUV, VUV and UV photolysis.
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Affiliation(s)
- Georgina Rózsa
- Department of Inorganic and Analytical Chemistry, University of Szeged, Dóm tér 7, Szeged, H-6720, Hungary
- Radiation Chemistry Department, Institute for Energy Security and Environmental Safety, Centre for Energy Research, Hungarian Academy of Sciences, Konkoly-Thege Miklós út 29-33, Budapest, H-1121, Hungary
| | - Ákos Fazekas
- Department of Inorganic and Analytical Chemistry, University of Szeged, Dóm tér 7, Szeged, H-6720, Hungary
| | - Máté Náfrádi
- Department of Inorganic and Analytical Chemistry, University of Szeged, Dóm tér 7, Szeged, H-6720, Hungary
| | - Tünde Alapi
- Department of Inorganic and Analytical Chemistry, University of Szeged, Dóm tér 7, Szeged, H-6720, Hungary
| | - Krisztina Schrantz
- Department of Inorganic and Analytical Chemistry, University of Szeged, Dóm tér 7, Szeged, H-6720, Hungary
| | - Erzsébet Takács
- Radiation Chemistry Department, Institute for Energy Security and Environmental Safety, Centre for Energy Research, Hungarian Academy of Sciences, Konkoly-Thege Miklós út 29-33, Budapest, H-1121, Hungary.
| | - László Wojnárovits
- Radiation Chemistry Department, Institute for Energy Security and Environmental Safety, Centre for Energy Research, Hungarian Academy of Sciences, Konkoly-Thege Miklós út 29-33, Budapest, H-1121, Hungary
| | - Andreas Fath
- Faculty of Medical and Life Sciences, Hochschule Furtwangen University, Campus Villingen-Schwenningen, Jakob-Kienzle Str. 17, 78054, Villingen-Schwenningen, Germany
| | - Thomas Oppenländer
- Faculty of Medical and Life Sciences, Hochschule Furtwangen University, Campus Villingen-Schwenningen, Jakob-Kienzle Str. 17, 78054, Villingen-Schwenningen, Germany
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21
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Pogrmic-Majkic K, Samardzija Nenadov D, Stanic B, Milatovic S, Trninic-Pjevic A, Kopitovic V, Andric N. T-2 toxin downregulates LHCGR expression, steroidogenesis, and cAMP level in human cumulus granulosa cells. ENVIRONMENTAL TOXICOLOGY 2019; 34:844-852. [PMID: 30951242 DOI: 10.1002/tox.22752] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 03/18/2019] [Accepted: 03/22/2019] [Indexed: 06/09/2023]
Abstract
Our goals were to investigate whether environmentally relevant doses of T-2 toxin can affect human ovarian granulosa cells' function and to reveal the potential mechanism of T-2 toxin's action. Results showed that T-2 toxin strongly attenuated luteinizing hormone/choriogonadotropin receptor (LHCGR) mRNA expression in follicle-stimulating hormone (FSH)-stimulated human cumulus granulosa cells. Addition of human chorionic gonadotropin was not able to elicit maximal response of ovulatory genes amphiregulin, epiregulin, and progesterone receptor. T-2 toxin reduced mRNA levels of CYP19A1 and steroidogenic acute regulatory protein (STAR) and lowered FSH-stimulated estradiol and progesterone production. Mechanistic experiments demonstrated that T-2 toxin decreased FSH-stimulated cyclic adenosine monophosphate (cAMP) production. Addition of total PDE inhibitor 3-isobutyl-1-methylxanthine prevented T-2 toxin's action on LHCGR, STAR, and CYP19A1 mRNA expression in FSH-stimulated human cumulus granulosa cells. Furthermore, T-2 toxin partially decreased 8-bromoadenosine 3'5'-cyclic monophosphate (8-Br-cAMP)-stimulated LHCGR and STAR, but did not affect 8-Br-cAMP-stimulated CYP19A1 mRNA expression in human cumulus granulosa cells. Overall, our data indicate that environmentally relevant dose of T-2 toxin decreases steroidogenesis and ovulatory potency in human cumulus granulosa cells probably through activation of PDE, thus posing a significant risk for female fertility.
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Affiliation(s)
- Kristina Pogrmic-Majkic
- University of Novi Sad, Faculty of Sciences, Department of Biology and Ecology, Novi Sad, Serbia
| | | | - Bojana Stanic
- University of Novi Sad, Faculty of Technical Sciences, Department of Environmental Engineering and Occupational Safety and Health, Novi Sad, Serbia
| | - Stevan Milatovic
- University of Novi Sad, Faculty of Medicine, Novi Sad, Serbia
- Clinic for Gynecology and Obstetrics, Clinical Center of Vojvodina, Novi Sad, Serbia
| | - Aleksandra Trninic-Pjevic
- University of Novi Sad, Faculty of Medicine, Novi Sad, Serbia
- Clinic for Gynecology and Obstetrics, Clinical Center of Vojvodina, Novi Sad, Serbia
| | - Vesna Kopitovic
- University of Novi Sad, Faculty of Medicine, Novi Sad, Serbia
- Clinic for Gynecology and Obstetrics, Clinical Center of Vojvodina, Novi Sad, Serbia
| | - Nebojsa Andric
- University of Novi Sad, Faculty of Sciences, Department of Biology and Ecology, Novi Sad, Serbia
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22
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García-Espiñeira M, Tejeda-Benitez L, Olivero-Verbel J. Toxicity of atrazine- and glyphosate-based formulations on Caenorhabditis elegans. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 156:216-222. [PMID: 29550685 DOI: 10.1016/j.ecoenv.2018.02.075] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Revised: 02/04/2018] [Accepted: 02/28/2018] [Indexed: 06/08/2023]
Abstract
Atrazine and Glyphosate are herbicides massively used in agriculture for crop protection. Upon application, they are available to the biota in different ecosystems. The aim of this research was to evaluate the toxicity of Glyphosate and Atrazine based formulations (GBF and ABF, respectively). Caenorhabditis elegans was exposed to different concentrations of each single formulation, and to the mixture. Lethality, locomotion, growth, and fertility were measured as endpoints. Effects on gene expression were monitored utilizing green fluorescence protein transgenic strains. ABF caused lethality of 12%, 15%, and 18% for 6, 60, and 600 μM, respectively, displaying a dose dependence trend. GBF produced lethality of 20%, 50%, and 100% at 0.01, 10, and 100 μM, respectively. Locomotion inhibition ranged from 21% to 89% at the lowest and maximum tested concentrations for Atrazine; whereas for Glyphosate, exposure to 10 μM inhibited 87%. Brood size was decreased by 67% and 93% after treatment to 0.06 and 6 μM Atrazine, respectively; and by 23% and 93% after exposure to 0.01 and 10 μM Glyphosate, respectively. There were no significant differences in growth. Changes in gene expression occurred in all genes, highlighting the expression of sod-1, sod-4, and gpx-4 that increased more than two-fold after exposure to 600 μM ABF and 10 μM GBF. The effects observed for the mixture of these formulations were additive for lethality, locomotion and fertility. In short, GBF, ABF, and their mixture induced several toxic responses related to oxidative stress on C. elegans.
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Affiliation(s)
- María García-Espiñeira
- Environmental and Computational Chemistry Group, Zaragocilla Campus. School of Pharmaceutical Sciences. University of Cartagena, Cartagena 130015, Colombia.
| | - Lesly Tejeda-Benitez
- Development and Use of Biomass Research Group, Piedra de Bolivar Campus, School of Engineering, Universidad de Cartagena, Cartagena, 130015, Colombia.
| | - Jesus Olivero-Verbel
- Environmental and Computational Chemistry Group, Zaragocilla Campus. School of Pharmaceutical Sciences. University of Cartagena, Cartagena 130015, Colombia.
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23
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Wang T, Xue B, Shao H, Wang SY, Bai L, Yin CH, Zhao HY, Qi YC, Cui LL, He X, Ma YM. Effect of Dandelion Extracts on the Proliferation of Ovarian Granulosa Cells and Expression of Hormone Receptors. Chin Med J (Engl) 2018; 131:1694-1701. [PMID: 29998889 PMCID: PMC6048925 DOI: 10.4103/0366-6999.235864] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Background: In the current society, infertility related to age has become a social problem. The in vitro fertilization (IVF) success rate in women with poor ovarian response (POR) is very low. Dandelion extract T-1 (DE-T1) is an effective component of the extract from the leaves and stems of Taraxacum officinale, which is one of the medicines used in some patients with POR, but its molecular mechanism remains unclear. Methods: Following IVF, ovarian granulosa cells (GCs) of sixty patients were extracted and divided into normal ovarian response (NOR) and POR groups. GCs were cultured in a dose-dependent and time-dependent manner with DE-T1, proliferation of GCs was determined by Cell Counting Kit-8 assay, and mRNA levels of insulin-like growth factor 1 receptor (IGF-1R), luteotropic hormone receptor (LHR), follicle-stimulating hormone receptor (FSHR), LHR, and CYP19A1 (aromatase) were determined by quantitative polymerase chain reaction. Progesterone and estradiol (E2) concentrations were determined by enzyme-linked immunosorbent assay. Results: The cell viability gradually increased with the progressive increase in the DE-T1 concentration. Compared with the control group (without DE-T1), the mRNA expressions of FSHR, LHR, IGF-1R, and CYP19A1 were upregulated after the addition of DE-T1, especially in the 2.5% DE-T1 group (P < 0.01). The expression of IGF-1R was upregulated approximately 25 times (24.97 ± 4.02 times) in the POR group with 2.5% DE-T1. E2 and progesterone levels increased with the increasing DE-T1 concentration. There were highly significant differences in the E2 and progesterone secretion between the NOR and POR groups (P < 0.01). Conclusion: DE-T1 may promote steroid hormone synthesis by promoting GC proliferation and upregulating GC receptor expression, thereby improving ovarian endocrine function.
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Affiliation(s)
- Tong Wang
- Department of Reproductive Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100026, China
| | - Bing Xue
- Core Facility Center, Capital Medical University, Beijing 100069, China
| | - Hui Shao
- Hanabusa Women's Clinic, Tokujun Company, 4-2-15 Gokodori Chuo-Ku, Kobe, Hyogo, Japan
| | - Shu-Yu Wang
- Department of Reproductive Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100026, China
| | - Li Bai
- Hanabusa Women's Clinic, Tokujun Company, 4-2-15 Gokodori Chuo-Ku, Kobe, Hyogo, Japan
| | - Cheng-Hong Yin
- Department of Reproductive Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100026, China
| | - Huan-Ying Zhao
- Core Facility Center, Capital Medical University, Beijing 100069, China
| | - Yong-Chao Qi
- Department of Reproductive Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100026, China
| | - Le-Le Cui
- Department of Reproductive Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100026, China
| | - Xin He
- Department of Reproductive Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100026, China
| | - Yan-Min Ma
- Department of Reproductive Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100026, China
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24
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Pogrmic-Majkic K, Samardzija D, Stojkov-Mimic N, Vukosavljevic J, Trninic-Pjevic A, Kopitovic V, Andric N. Atrazine suppresses FSH-induced steroidogenesis and LH-dependent expression of ovulatory genes through PDE-cAMP signaling pathway in human cumulus granulosa cells. Mol Cell Endocrinol 2018; 461:79-88. [PMID: 28859905 DOI: 10.1016/j.mce.2017.08.015] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Revised: 07/13/2017] [Accepted: 08/28/2017] [Indexed: 01/12/2023]
Abstract
Atrazine (ATR) alters female reproductive functions in different animal species. Here, we analyzed whether ATR disturbs steroidogenic and ovulatory processes in hormone-stimulated human cumulus granulosa cells and mechanism of its action. Results showed that treatment of human cumulus granulosa cells with 20 μM ATR for 48 h resulted in lower FSH-stimulated estradiol and progesterone production. ATR reduced mRNA levels of aromatase (CYP19A1), steroidogenic acute regulatory protein (STAR) and luteinizing hormone/choriogonadotropin receptor (LHCGR). Addition of hCG 48 h after FSH and ATR treatment did not trigger maximal expression of the ovulatory genes amphiregulin (AREG) and epiregulin (EREG). Mechanistic experiments showed that ATR activated cPDE and decreased cAMP level. Addition of total PDE and specific PDE4 inhibitors, IBMX and rolipram, prevented ATR's action on CYP19A1 and STAR mRNA expression in FSH-stimulated human cumulus granulosa cells. This study suggests that ATR alters steroidogenesis and ovulatory process in human cumulus granulosa cells jeopardizing female reproduction.
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Affiliation(s)
| | - Dragana Samardzija
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Serbia
| | - Natasa Stojkov-Mimic
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Serbia
| | - Jelena Vukosavljevic
- Clinic for Gynecology and Obstetrics, Clinical Center of Vojvodina, Novi Sad, Serbia
| | | | - Vesna Kopitovic
- Clinic for Gynecology and Obstetrics, Clinical Center of Vojvodina, Novi Sad, Serbia
| | - Nebojsa Andric
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Serbia
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25
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Yao X, Zhang G, Guo Y, EI-Samahy M, Wang S, Wan Y, Han L, Liu Z, Wang F, Zhang Y. Vitamin D receptor expression and potential role of vitamin D on cell proliferation and steroidogenesis in goat ovarian granulosa cells. Theriogenology 2017; 102:162-173. [DOI: 10.1016/j.theriogenology.2017.08.002] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 08/01/2017] [Accepted: 08/01/2017] [Indexed: 11/30/2022]
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26
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Hao C, Gely-Pernot A, Kervarrec C, Boudjema M, Becker E, Khil P, Tevosian S, Jégou B, Smagulova F. Exposure to the widely used herbicide atrazine results in deregulation of global tissue-specific RNA transcription in the third generation and is associated with a global decrease of histone trimethylation in mice. Nucleic Acids Res 2016; 44:9784-9802. [PMID: 27655631 PMCID: PMC5175363 DOI: 10.1093/nar/gkw840] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Revised: 09/11/2016] [Accepted: 09/12/2016] [Indexed: 02/07/2023] Open
Abstract
The epigenetic events imposed during germline reprogramming and affected by harmful exposure can be inherited and transferred to subsequent generations via gametes inheritance. In this study, we examine the transgenerational effects promoted by widely used herbicide atrazine (ATZ). We exposed pregnant outbred CD1 female mice and the male progeny was crossed for three generations with untreated females. We demonstrate here that exposure to ATZ affects meiosis, spermiogenesis and reduces the spermatozoa number in the third generation (F3) male mice. We suggest that changes in testis cell types originate from modified transcriptional network in undifferentiated spermatogonia. Importantly, exposure to ATZ dramatically increases the number of transcripts with novel transcription initiation sites, spliced variants and alternative polyadenylation sites. We found the global decrease in H3K4me3 occupancy in the third generation males. The regions with altered H3K4me3 occupancy in F3 ATZ-derived males correspond to altered H3K4me3 occupancy of F1 generation and 74% of changed peaks in F3 generation are associated with enhancers. The regions with altered H3K4me3 occupancy are enriched in SP family and WT1 transcription factor binding sites. Our data suggest that the embryonic exposure to ATZ affects the development and the changes induced by ATZ are transferred up to three generations.
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Affiliation(s)
- Chunxiang Hao
- Inserm U1085 IRSET, 9 Avenue du Professeur Léon-Bernard, 35000 Rennes, France
| | - Aurore Gely-Pernot
- Inserm U1085 IRSET, 9 Avenue du Professeur Léon-Bernard, 35000 Rennes, France.,EHESP, 2 Avenue du Professeur Léon-Bernard, 35000 Rennes, France
| | - Christine Kervarrec
- Inserm U1085 IRSET, 9 Avenue du Professeur Léon-Bernard, 35000 Rennes, France
| | - Melissa Boudjema
- Inserm U1085 IRSET, 9 Avenue du Professeur Léon-Bernard, 35000 Rennes, France
| | - Emmanuelle Becker
- Inserm U1085 IRSET, 9 Avenue du Professeur Léon-Bernard, 35000 Rennes, France
| | - Pavel Khil
- Clinical Center, National Institute of Health, Bethesda, MD 20892, USA
| | - Sergei Tevosian
- University of Florida, Department of Physiological Sciences, Box 100144, 1333 Center Drive, 32610 Gainesville, FL, USA
| | - Bernard Jégou
- Inserm U1085 IRSET, 9 Avenue du Professeur Léon-Bernard, 35000 Rennes, France.,EHESP, 2 Avenue du Professeur Léon-Bernard, 35000 Rennes, France
| | - Fatima Smagulova
- Inserm U1085 IRSET, 9 Avenue du Professeur Léon-Bernard, 35000 Rennes, France
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27
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Pogrmic-Majkic K, Fa S, Samardzija D, Hrubik J, Kaisarevic S, Andric N. Atrazine activates multiple signaling pathways enhancing the rapid hCG-induced androgenesis in rat Leydig cells. Toxicology 2016; 368-369:37-45. [DOI: 10.1016/j.tox.2016.08.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Revised: 08/17/2016] [Accepted: 08/19/2016] [Indexed: 01/07/2023]
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