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Geng Z, Jin Y, Quan F, Huang S, Shi S, Hu B, Chi Z, Kong I, Zhang M, Yu X. Methoxychlor induces oxidative stress and impairs early embryonic development in pigs. Front Cell Dev Biol 2023; 11:1325406. [PMID: 38107075 PMCID: PMC10722284 DOI: 10.3389/fcell.2023.1325406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Accepted: 11/20/2023] [Indexed: 12/19/2023] Open
Abstract
Introduction: Methoxychlor (MXC) is an organochlorine pesticide (OCP) that was formerly used worldwide as an insecticide against pests and mosquitoes. However, MXC is not biodegradable and has lipophilic characteristics; thus, it accumulates in organisms and affects reproductive function. MXC, as an estrogenic compound, promotes oxidative stress, induces oxidative stress damage to ovarian follicles, and causes miscarriages and stillbirths in females. In this research endeavor, our primary objective was to explore the ramifications of MXC regarding the developmental processes occurring during the initial stages of embryogenesis in pigs. Methods: In this study, we counted the blastocyst rate of early embryos cultured in vitro. We also examined the reactive oxygen species level, glutathione level, mitochondrial membrane potential, mitochondrial copy number and ATP level in four-cell stage embryos. Finally, apoptosis and DNA damage in blastocyst cells, as well as pluripotency-related and apoptosis-related genes in blastocyst cells were detected. The above experiments were used to evaluate the changes of MXC damage on early parthenogenetic embryo development. Results and Discussion: The results showed that early embryos exposed to MXC had a significantly lower cleavage rate, blastocyst rate, hatching rate, and total cell count compared with the control group. It was also of note that MXC not only increased the levels of reactive oxygen species (ROS), but also decreased the mitochondrial membrane potential (ΔΨm) and mitochondrial copy number during the development of early embryos. In addition, after MXC treatment, blastocyst apoptosis and DNA damage were increased, decreased cell proliferation, and the expression of pluripotency-related genes SOX2, NANOG, and OCT4 was down-regulated, while the expression of apoptosis-related genes BAX/BCL-2 and Caspase9 was up-regulated. Our results clearly show that MXC can have deleterious effects on the developmental processes of early porcine embryos, establishing the toxicity of MXC to the reproductive system. In addition, the study of this toxic effect may lead to greater concern about pesticide residues in humans and the use of safer pesticides, thus potentially preventing physiological diseases caused by chemical exposure.
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Affiliation(s)
- Zhaojun Geng
- Jilin Provincial Key Laboratory of Animal Model, College of Animal Science, Jilin University, Changchun, China
| | - Yongxun Jin
- Jilin Provincial Key Laboratory of Animal Model, College of Animal Science, Jilin University, Changchun, China
| | - Fushi Quan
- Jilin Provincial Key Laboratory of Animal Model, College of Animal Science, Jilin University, Changchun, China
| | - Siyi Huang
- Jilin Provincial Key Laboratory of Animal Model, College of Animal Science, Jilin University, Changchun, China
| | - Shuming Shi
- Jilin Provincial Key Laboratory of Animal Model, College of Animal Science, Jilin University, Changchun, China
| | - Bing Hu
- Animal Genome Editing Technology Innovation Center, College of Animal Science, Jilin University, Changchun, China
| | - Zhichao Chi
- Jilin Provincial Key Laboratory of Animal Model, College of Animal Science, Jilin University, Changchun, China
| | - Ilkeun Kong
- Jilin Provincial Key Laboratory of Animal Model, College of Animal Science, Jilin University, Changchun, China
- Department of Animal Science, Division of Applied Life Science (BK21 Four), Gyeongsang National University, Jinju, Republic of Korea
| | - Mingjun Zhang
- Animal Genome Editing Technology Innovation Center, College of Animal Science, Jilin University, Changchun, China
| | - Xianfeng Yu
- Jilin Provincial Key Laboratory of Animal Model, College of Animal Science, Jilin University, Changchun, China
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Li X, Meng F, Ye L, Qiao X, Li J, Tian L, Su M, Lin L, Ge RS, Wang Y. Tetramethyl bisphenol A stimulates proliferation but inhibits fetal Leydig cell function in male rats by targeting estrogen receptor α after in utero exposure. ENVIRONMENTAL TOXICOLOGY 2022; 37:2743-2755. [PMID: 36214340 DOI: 10.1002/tox.23633] [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: 05/26/2022] [Revised: 07/16/2022] [Accepted: 07/21/2022] [Indexed: 06/16/2023]
Abstract
Tetramethyl bisphenol A (TMBPA) is a widely used flame retardant. TMBPA has been a toxic to Leydig cells in puberty, but it remains unclear whether TMBPA has a similar inhibitor effect on fetal Leydig cells (FLCs). This study reported morphological and functional alterations of FLCs in the testes of male offspring at birth after in utero exposure to TMBPA. Pregnant Sprague Dawley rats were dosed via continuous gavage of TMBPA (0, 10, 50, and 200 mg/kg/day) from gestational day 14 to 21. TMBPA markedly raised serum total testosterone level, testicular volume, and FLC number of male offspring at 200 mg/kg dose. The up-regulation of Insl3, Star, and Cyp11a1 mRNAs was observed after 200 mg/kg TMBPA exposure. After normalization to the number of FLCs, TMBPA significantly reduced Lhcgr and Hsd3b1 expressions at 10 mg/kg, and Cyp17a1 at 200 mg/kg paralleling with their protein levels. TMBPA compromised the expression of Esr1, while increased the expression of Cdk2 and Cdk4 as well as their protein levels. TMBPA particularly increased the phosphorylation of AKT1 and AKT2 at 200 mg/kg. In conclusion, the present study suggests that TMBPA may promote FLC proliferation via ESR1-CDK2/4-AKT pathway, while inhibits the function of FLCs by reducing steroidogenic enzyme activity.
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Affiliation(s)
- Xueyun Li
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
- Department of pathology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Fangyan Meng
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Lei Ye
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
- Department of pathology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Xinyi Qiao
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
- Department of pathology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Jingjing Li
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Lili Tian
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Ming Su
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Liben Lin
- Department of pathology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Ren-Shan Ge
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
- Key Laboratory of Structural Malformations in Children of Zhejiang Province, Wenzhou, China
| | - Yiyan Wang
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
- Key Laboratory of Structural Malformations in Children of Zhejiang Province, Wenzhou, China
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Xu Q, Chen Q, Lin L, Zhang P, Li Z, Yu Y, Ma F, Ying Y, Li X, Ge RS. Triadimefon suppresses fetal adrenal gland development after in utero exposure. Toxicology 2021; 462:152932. [PMID: 34508824 DOI: 10.1016/j.tox.2021.152932] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 08/19/2021] [Accepted: 09/06/2021] [Indexed: 11/17/2022]
Abstract
Triadimefon is a broad-spectrum antifungal agent, which is widely used in agriculture to control mold and fungal infections. It is considered an endocrine disruptor. Whether triadimefon exposure can inhibit the development of fetal adrenal glands and the underlying mechanism remain unclear. Thirty-two pregnant female Sprague-Dawley rats were randomly divided into four groups. Dams were gavaged triadimefon (0, 25, 50, and 100 mg/kg/day) daily for 10 days from gestational day (GD) 12 to GD 21. Triadimefon significantly reduced the thickness of the zona fasciculata of male fetuses at 100 mg/kg, although it did not change the thickness of the zona glomerulosa. It significantly reduced the serum aldosterone levels of male fetuses at a dose of 100 mg/kg, and significantly reduced serum corticosterone and adrenocorticotropic hormone levels at doses of 50 and 100 mg/kg. Triadimefon significantly down-regulated the expression of Agtr1, Mc2r, Star, Cyp11b1, Cyp11b2, Igf1, Nr5a1, Sod2, Gpx1, and Cat, but did not affect the mRNA levels of Scarb1, Cyp11a1, Cyp21, Hsd3b1, and Hsd11b2. Triadimefon markedly reduced AT1R, CYP11B2, IGF1, NR5A1, and MC2R protein levels. Triadimefon significantly reduced the phosphorylation of AKT1 and ERK1/2 at 100 mg/kg without affecting the phosphorylation of AKT2. In contrast, it significantly increased AMPK phosphorylation at 100 mg/kg. In conclusion, exposure to triadimefon during gestation inhibits the development of fetal adrenal cortex in male fetuses. This inhibition is possibly due to the reduction of several proteins required for the synthesis of steroid hormones, and may be involved in changes in antioxidant contents and the phosphorylation of AKT1, ERK1/2, and AMPK.
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Affiliation(s)
- Qiang Xu
- Department of Pathology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Quanxu Chen
- Department of Pathology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Liben Lin
- Department of Pathology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Pu Zhang
- Department of Pathology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Zengqiang Li
- Department of Anesthesiology, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Yige Yu
- Department of Anesthesiology, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Feifei Ma
- Department of Anesthesiology, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Yingfen Ying
- Department of Obstetrics and Gynecology, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Xiaoheng Li
- Department of Anesthesiology, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Ren-Shan Ge
- Department of Anesthesiology, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325000, China.
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Li H, Wen Z, Ni C, Chen X, Cheng Y, Liu Y, Li X, Zhu Q, Ge RS. Perfluorododecanoic acid delays Leydig cell regeneration from stem cells in adult rats. Food Chem Toxicol 2021; 151:112152. [PMID: 33774092 DOI: 10.1016/j.fct.2021.112152] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 02/26/2021] [Accepted: 03/19/2021] [Indexed: 11/25/2022]
Abstract
Perfluorododecanoic acid (PFDoA) is an endocrine-damaging compound in contaminated food and water. However, the potential role and underlying mechanism of PFDoA in Leydig cell regeneration from stem Leydig cells remain unclear. The current study aims to investigate the effect of PFDoA on the regeneration of Leydig cells in the testis of rats treated with ethylene dimethane sulfonate (EDS). PFDoA (0, 5 or 10 mg/kg/day) was gavaged to adult Sprague-Dawley male rats for 8 days, and 75 mg/kg EDS was intraperitoneally injected to eliminate Leydig cells to initiate its regeneration from day 21-56 after EDS. The serum testosterone levels in the 5 and 10 mg/kg/day PFDoA groups were significantly reduced at day 21 after EDS and the levels of serum luteinizing hormone and follicle-stimulating hormone were significantly decreased in the 10 mg/kg/day PFDoA groups at day 56 after EDS. PFDoA significantly reduced Leydig cell number and proliferation at a dose of 10 mg/kg at days 21 and 56 after EDS. PFDoA significantly down-regulated the expression of Leydig cell-specific genes (Lhcgr, Scarb1, Star, Cyp11a1, Hsd3b1 and Cyp17a1) and their proteins at both doses at days 21 and 56 after EDS. PFDoA significantly down-regulated the gene expression of Sertoli cells (Fshr, Dhh, and Sox9) at 5 mg/kg or higher at days 21 and 56 after EDS. In addition, we found that PFDoA significantly inhibited EdU incorporation into putative stem Leydig cells and their differentiation into the Leydig cell lineage in vitro. In conclusion, short-term PFDoA exposure in adulthood delayed the regeneration of Leydig cells by preventing Leydig cells from stem cells via multiple mechanisms.
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Affiliation(s)
- Huitao Li
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang, 325027, China
| | - Zina Wen
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang, 325027, China; Chengdu Xi'nan Gynecological Hospital, Chengdu, Sichuan, China
| | - Chaobo Ni
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang, 325027, China; The First Hospital of Jiaxing & The Affiliated Hospital of Jiaxing University, China
| | - Xianwu Chen
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang, 325027, China
| | - Yong Cheng
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang, 325027, China
| | - Yuxin Liu
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang, 325027, China
| | - Xiaoheng Li
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang, 325027, China
| | - Qiqi Zhu
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang, 325027, China
| | - Ren-Shan Ge
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang, 325027, China.
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Li Y, Ma F, Li Z, Yu Y, Yan H, Tahir A, Zheng W, Li X, Huang T, Ge RS. Exposure to 4-bromodiphenyl ether during pregnancy blocks testis development in male rat fetuses. Toxicol Lett 2021; 342:38-49. [PMID: 33582287 DOI: 10.1016/j.toxlet.2021.02.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 12/22/2020] [Accepted: 02/05/2021] [Indexed: 12/22/2022]
Abstract
4-Bromodiphenyl ether (BDE3) is a photodegradation product of higher polybrominated diphenyl ether flame retardants and is known as an endocrine disruptor. However, it is unclear whether and how BDE3 affects the development of fetal testes. This study aimed to investigate the effect of in utero exposure to BDE3 on fetal testicular development in rats. From gestational day (GD) 12-21, BDE3 (0, 50, 100, and 200 mg/kg) was daily gavaged to female pregnant Sprague Dawley rats. BDE3 significantly reduced serum testosterone levels of male pups starting at 50 mg/kg. BDE3 reduced fetal Leydig cell number at a dose of 200 mg/kg without affecting fetal Leydig cell cluster frequency and Sertoli cell number. In addition, BDE3 down-regulated the expression of fetal Leydig cell genes (Cyp11a1, Hsd3b1, Cyp17a1, and Hsd17b3) and their proteins at 100 and/or 200 mg/kg. RNA-seq analysis showed that genes responsive to cAMP (Ass1, Gpd1, Rpl13a) were down-regulated and hypoxia-related genes (Egln3 and P4ha1) were up-regulated at 200 mg/kg. In utero exposure to BDE3 can promote autophagy and apoptosis of fetal Leydig cells via increasing the levels of Beclin1, LC3-II, BAX, and by decreasing the levels of p62 and BCL2. In conclusion, in utero exposure to BDE3 blocks the development of fetal rat testes.
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Affiliation(s)
- Yang Li
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang 325027, China; Department of Obstetrics and Gynecology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang 325027, China
| | - Feifei Ma
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang 325027, China; Department of Obstetrics and Gynecology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang 325027, China
| | - Zengqiang Li
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang 325027, China
| | - Yige Yu
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang 325027, China
| | - Haoni Yan
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang 325027, China
| | - Anam Tahir
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang 325027, China
| | - Wenwen Zheng
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang 325027, China
| | - Xiaoheng Li
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang 325027, China
| | - Tongliang Huang
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang 325027, China
| | - Ren-Shan Ge
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang 325027, China; Department of Obstetrics and Gynecology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang 325027, China.
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Low dose of fire retardant, 2,2',4,4'-tetrabromodiphenyl ether (BDE47), stimulates the proliferation and differentiation of progenitor Leydig cells of male rats during prepuberty. Toxicol Lett 2021; 342:6-19. [PMID: 33581290 DOI: 10.1016/j.toxlet.2021.02.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 01/31/2021] [Accepted: 02/08/2021] [Indexed: 01/17/2023]
Abstract
2,2',4,4'-Tetrabromodiphenyl ether (BDE47), a flame retardant, is extensively distributed in the food chain. However, whether BDE47 affects Leydig cell development during prepuberty remains unclear. BDE47 was daily gavaged to 21-day-old Sprague-Dawley male rats with 0 (corn oil), 0.1, 0.2, and 0.4 mg/kg for 14 days. BDE47 did not affect the body weight or testis weight of rats. It significantly increased serum testosterone level at 0.4 mg/kg, but decreased luteinizing hormone (LH) level without affecting estradiol level. BDE47 induced Leydig cell hyperplasia (the number of CYP11A1-positive Leydig cells increased), and up-regulated the expression of Scarb1, Star, Hsd11b1, Pcna, and Ccnd1 in the testis. BDE47 significantly reduced p53 and p21 levels but increased CCND1 level. It also markedly increased the phosphorylation of AKT1, AKT2, ERK1/2, and CREB. BDE47 significantly up-regulated the expression of Scarb1, Star, and Hsd11b1 and stimulated androgen production by immature Leydig cells from rats under basal, LH, and 8Br-cAMP stimulated conditions at 100 nM in vitro. In conclusion, BDE47 increased Leydig cell number and up-regulated the expression of Scarb1 and Star, thereby leading to increased testosterone synthesis.
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Wu K, Li Y, Pan P, Li Z, Yu Y, Huang J, Ma F, Tian L, Fang Y, Wang Y, Lin H, Ge RS. Gestational vinclozolin exposure suppresses fetal testis development in rats. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 203:111053. [PMID: 32888615 DOI: 10.1016/j.ecoenv.2020.111053] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Revised: 07/17/2020] [Accepted: 07/18/2020] [Indexed: 06/11/2023]
Abstract
Vinclozolin is a common dicarboximide fungicide used to protect crops from diseases. It is also an endocrine disruptor and is thought to be related to abnormalities of the reproductive tract. However, its mechanism of inducing abnormalities of the male reproductive tract is still unclear. The purpose of this study was to study the effect of gestational vinclozolin exposure on the development of rat fetal Leydig cells. Female pregnant Sprague-Dawley rats were exposed to vinclozolin (0, 25, 50, and 100 mg/kg body weight/day) by gavage from gestational day 14-21. Vinclozolin dose-dependently reduced serum testosterone levels at doses of 50 and 100 mg/kg and the anogenital distance at 100 mg/kg. RNA-seq, qPCR, and Western blotting showed that vinclozolin down-regulated the expression of Nr5a1, Sox9, Lhcgr, Cyp11a1, Hsd3b1, Hsd17b3, Amh, Pdgfa, and Dhh and their encoded proteins. Vinclozolin reduced the number of NR2F2-positive stem Leydig cells at a dose of 100 mg/kg and enhanced autophagy in the testes. In conclusion, vinclozolin disrupts reproductive tract development and testis development in male fetal rats via several pathways.
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Affiliation(s)
- Keyang Wu
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang, 325027, China; Department of Obstetrics and Gynecology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang, 325027, China
| | - Yang Li
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang, 325027, China; Department of Obstetrics and Gynecology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang, 325027, China
| | - Peipei Pan
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang, 325027, China
| | - Zengqiang Li
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang, 325027, China
| | - Yige Yu
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang, 325027, China
| | - Jianjian Huang
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang, 325027, China
| | - Feifei Ma
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang, 325027, China
| | - Lili Tian
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang, 325027, China
| | - Yinghui Fang
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang, 325027, China
| | - Yiyan Wang
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang, 325027, China
| | - Han Lin
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang, 325027, China.
| | - Ren-Shan Ge
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang, 325027, China; Department of Obstetrics and Gynecology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang, 325027, China.
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Zhan X, Zhang J, Li S, Zhang X, Li L, Song T, Liu Q, Lu J, Xu Y, Ge RS. Monocyte Chemoattractant Protein-1 stimulates the differentiation of rat stem and progenitor Leydig cells during regeneration. BMC DEVELOPMENTAL BIOLOGY 2020; 20:20. [PMID: 33023470 PMCID: PMC7541273 DOI: 10.1186/s12861-020-00225-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Accepted: 09/20/2020] [Indexed: 01/01/2023]
Abstract
Background Monocyte chemoattractant protein-1(MCP-1) is a chemokine secreted by Leydig cells and peritubular myoid cells in the rat testis. Its role in regulating the development of Leydig cells via autocrine and paracrine is still unclear. The objective of the current study was to investigate the effects of MCP-1 on Leydig cell regeneration from stem cells in vivo and on Leydig cell development in vitro. Results Intratesticular injection of MCP-1(10 ng/testis) into Leydig cell-depleted rat testis from post-EDS day 14 to 28 significantly increased serum testosterone and luteinizing hormone levels, up-regulated the expression of Leydig cell proteins, LHCGR, SCARB1, CYP11A1, HSD3B1, CYP17A1, and HSD17B3 without affecting progenitor Leydig cell proliferation, as well as increased ERK1/2 phosphorylation. MCP-1 (100 ng/ml) significantly increased medium testosterone levels and up-regulated LHCGR, CYP11A1, and HSD3B1 expression without affecting EdU incorporation into stem cells after in vitro culture for 7 days. RS102895, a CCR2 inhibitor, reversed MCP-1-mediated increase of testosterone level after culture in combination with MCP-1. Conclusion MCP-1 stimulates the differentiation of stem and progenitor Leydig cells without affecting their proliferation.
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Affiliation(s)
- Xiangcheng Zhan
- Department of Urology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China.,Tongji University School of Medicine, Shanghai, 200092, China
| | - Jingwei Zhang
- Department of Urology, Yijishan Hospital, Wannan Medical College, Wuhu, 241000, Anhui, China
| | - Saiyang Li
- Department of Urology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China.,Nanjing Medical University, Nanjing, China
| | - Xiaolu Zhang
- Department of Urology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Linchao Li
- Department of Anesthesiology, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Tiantian Song
- Department of Anesthesiology, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Qunlong Liu
- Department of Urology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China.,Nanjing Medical University, Nanjing, China
| | - Jun Lu
- Department of Urology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China.,Department of Anesthesiology, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Yunfei Xu
- Department of Urology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China. .,Tongji University School of Medicine, Shanghai, 200092, China. .,Nanjing Medical University, Nanjing, China.
| | - Ren-Shan Ge
- Department of Anesthesiology, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China.
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9
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Pan P, Ma F, Wu K, Yu Y, Li Y, Li Z, Chen X, Huang T, Wang Y, Ge RS. Maternal exposure to zearalenone in masculinization window affects the fetal Leydig cell development in rat male fetus. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 263:114357. [PMID: 32229375 DOI: 10.1016/j.envpol.2020.114357] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Revised: 03/07/2020] [Accepted: 03/10/2020] [Indexed: 06/10/2023]
Abstract
Zearalenone is a phenolic Fusarium mycotoxin, which is ubiquitous in human and animal feedstuff and often co-occurs with other mycotoxins. ZEA has been reported to disturb Leydig cell function and even cause the apoptosis to the Leydig cells. However, the effects of gestational exposure to zearalenone on fetal Leydig cells and the underlying mechanism remain unknown. Sprague Dawley dams were daily gavaged with 0, 2.5, 5, 10, and 20 mg/kg body weight ZEA from gestational day 14-21. On gestational day 21, rats were euthanized and serum testosterone levels were measured, and testes were collected for further evaluation of Leydig cell number, cell size, gene, and protein expression. Zearalenone significantly decreased anogenital distance and its index of male fetus, serum testosterone levels, Leydig cell proteins (SCARB1, STAR, CYP11A1, CYP17A1, and INSL3), and fetal Leydig cell number at 10 and/or 20 mg/kg by delaying the commitment of stem Leydig cells into the Leydig cell lineage and proliferation. Further study found that Notch signaling (RFNG, PSEN1, NOTCH1, and NOTCH3) was up-regulated by zearalenone. In conclusion, gestational exposure to high doses of zearalenone (10 and 20 mg/kg) blocks fetal Leydig cell development, thus possibly causing the anomalies of the male reproductive tract.
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Affiliation(s)
- Peipei Pan
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Feifei Ma
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Keyang Wu
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Yige Yu
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Yang Li
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Zengqiang Li
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Xiuxiu Chen
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Tongliang Huang
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Yiyan Wang
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Ren-Shan Ge
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China.
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10
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Li X, Li L, Chen X, Li X, Wang Y, Zhu Q, Gao-Smith F, Ge RS. Triphenyltin chloride reduces the development of rat adrenal cortex during puberty. Food Chem Toxicol 2020; 143:111479. [PMID: 32504733 DOI: 10.1016/j.fct.2020.111479] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 04/30/2020] [Accepted: 05/26/2020] [Indexed: 11/24/2022]
Abstract
Triphenyltin has been classified as an endocrine disruptor. However, whether triphenyltin interferes with the adrenal glands during puberty remains unknown. Here, we reported the effects of triphenyltin on the adrenal glands in rats. Male Sprague Dawley rats (age of 35 days) were orally administered with 0, 0.5, 1, or 2 mg/kg/day triphenyltin for 18 days. Triphenyltin significantly lowered corticosterone levels at 1 and 2 mg/kg and adrenocorticotropic hormone at 2 mg/kg. The RNA-Seq analysis detected multiple differentially expressed genes. Four down-regulated genes were transcription factor genes (Nr4a1, Nr4a2, Nr4a3, and Ppard), which might be associated with the suppression of the adrenal cortex function. RNA-seq and qPCR showed that triphenyltin dose-dependently down-regulated the expression of the genes for cholesterol transport and biosynthesis, including Scarb1, Ldlr, Hmgcs1, Hmgcr, and Hsd17b7. Further Western blotting revealed that it lowered NR4A1, PPRAD, LDLR, and HMGCS1 protein levels. We treated H295R adrenal cells with 1-100 nM triphenyltin for 72 h. Triphenyltin induced significant higher ROS production at 100 nM and did not induce apoptosis at 10 and 100 nM. In conclusion, triphenyltin inhibits production of corticosterone via blocking the expression of cholesterol uptake transporters and cholesterol biosynthesis.
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Affiliation(s)
- Xingwang Li
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, People's Republic of China.
| | - Linchao Li
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, People's Republic of China
| | - Xiuxiu Chen
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, People's Republic of China.
| | - Xiaoheng Li
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, People's Republic of China.
| | - Yiyan Wang
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, People's Republic of China.
| | - Qiqi Zhu
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, People's Republic of China.
| | - Fang Gao-Smith
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, People's Republic of China.
| | - Ren-Shan Ge
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, People's Republic of China.
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11
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Li Z, Yu Y, Li Y, Ma F, Fang Y, Ni C, Wu K, Pan P, Ge RS. Taxifolin attenuates the developmental testicular toxicity induced by di-n-butyl phthalate in fetal male rats. Food Chem Toxicol 2020; 142:111482. [PMID: 32525071 DOI: 10.1016/j.fct.2020.111482] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Revised: 05/12/2020] [Accepted: 05/28/2020] [Indexed: 01/01/2023]
Abstract
Di-n-butyl phthalate (DBP) is widely used in consumer products as a plasticizer. Here, we report a natural product taxifolin that can attenuate developmental and reproductive toxicity of DBP. Pregnant rats were daily gavaged with 500 mg/kg DBP alone or together with taxifolin (10 and 20 mg/kg) from gestational day (GD) 12-21. At GD21, sera and testes of male fetus were collected. DBP significantly lowered serum testosterone level at 500 mg/kg and taxifolin can completely reverse its action. DBP caused abnormal aggregation of fetal Leydig cells and taxifolin can reverse it. DBP down-regulated the expression of the genes of cholesterol side-chain cleavage enzyme (Cyp11a1), 17β-hydroxysteroid dehydrogenase 3 (Hsd17b3), and insulin-like 3 (Insl3) and taxifolin can reverse its action. DBP increased malondialdehyde levels and decreased superoxide dismutase and glutathione peroxidase expression and taxifolin can reverse it. DBP increased incidence of multinucleated gonocytes and taxifolin can prevent it. Moreover, DBP lowered sirtuin 1 (SIRT1)/peroxisome proliferator-activated receptor γ coactivator 1-α (PGC-1α) and phosphorylated AMP-activated protein kinase (pAMPK) signalling and taxifolin antagonized DBP. In conclusion, in utero exposure to DBP caused developmental/reproductive toxicity of male offspring via increasing reactive oxygen species and taxifolin is an effective food component that completely reverses DBP-mediated action.
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Affiliation(s)
- Zengqiang Li
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, People's Republic of China
| | - Yige Yu
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, People's Republic of China
| | - Yang Li
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, People's Republic of China
| | - Feifei Ma
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, People's Republic of China
| | - Yinghui Fang
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, People's Republic of China
| | - Chaobo Ni
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, People's Republic of China
| | - Keyang Wu
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, People's Republic of China
| | - Peipei Pan
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, People's Republic of China
| | - Ren-Shan Ge
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, People's Republic of China.
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12
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Martini M, Froment P, Franceschini I, Pillon D, Guibert E, Cahier C, Mhaouty-Kodja S, Keller M. Perinatal Exposure to Methoxychlor Affects Reproductive Function and Sexual Behavior in Mice. Front Endocrinol (Lausanne) 2020; 11:639. [PMID: 33013709 PMCID: PMC7509471 DOI: 10.3389/fendo.2020.00639] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Accepted: 08/06/2020] [Indexed: 01/07/2023] Open
Abstract
Numerous chemicals derived from human activity are now disseminated in the environment where their exert estrogenic endocrine disrupting effects, and therefore represent major health concerns. The present study explored whether Methoxychlor (MXC), an insecticide with xenoestrogens activities, given during the perinatal period (from gestational day 11 to postnatal day 8) and at an environmentally dose [20 μg/kg (body weight)/day], would affect reproductive physiology and sexual behavior of the offspring in mice. While MXC exposure did not induce any differences in the weight gain of animals from birth to 4 months of age, a clear difference (although in opposite direction according to the sexes) was observed on the anogenital distance between intact and exposed animals. A similar effect was also observed on preputial separation and vaginal opening, which reflects, respectively, in males and females, puberty occurrence. The advanced puberty observed in females was associated with an enhanced expression of kisspeptin cells in the anteroventral periventricular region of the medial preoptic area. Exposure to MXC did not induce in adult females changes in the estrous cycle or in the weight of the female reproductive tract. By contrast, males showed reduced weight of the epididymis and seminiferous vesicles associated with reduced testosterone levels and seminiferous tubule diameter. We also showed that both males and females showed deficits in mate preference tests. As a whole, our results show that MXC impacts reproductive outcomes.
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Affiliation(s)
- Mariangela Martini
- Physiologie de la Reproduction et des Comportements, UMR 7247 INRA/CNRS/Université François Rabelais, Nouzilly, France
- Department of Biological Sciences & Toxicology Program, North Carolina State University, Raleigh, NC, United States
| | - Pascal Froment
- Physiologie de la Reproduction et des Comportements, UMR 7247 INRA/CNRS/Université François Rabelais, Nouzilly, France
| | - Isabelle Franceschini
- Physiologie de la Reproduction et des Comportements, UMR 7247 INRA/CNRS/Université François Rabelais, Nouzilly, France
| | - Delphine Pillon
- Physiologie de la Reproduction et des Comportements, UMR 7247 INRA/CNRS/Université François Rabelais, Nouzilly, France
| | - Edith Guibert
- Physiologie de la Reproduction et des Comportements, UMR 7247 INRA/CNRS/Université François Rabelais, Nouzilly, France
| | - Claude Cahier
- Unité Expérimentale de Physiologie Animale de l'Orfrasière, UE 1297, INRA, Nouzilly, France
| | - Sakina Mhaouty-Kodja
- Sorbonne Université, CNRS, INSERM, Neuroscience Paris Seine - Institut de Biologie Paris Seine, Paris, France
| | - Matthieu Keller
- Physiologie de la Reproduction et des Comportements, UMR 7247 INRA/CNRS/Université François Rabelais, Nouzilly, France
- *Correspondence: Matthieu Keller
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13
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Chen X, Li C, Chen Y, Ni C, Chen X, Zhang L, Xu X, Chen M, Ma X, Zhan H, Xu A, Ge R, Guo X. Aflatoxin B1 impairs leydig cells through inhibiting AMPK/mTOR-mediated autophagy flux pathway. CHEMOSPHERE 2019; 233:261-272. [PMID: 31176127 DOI: 10.1016/j.chemosphere.2019.05.273] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 05/19/2019] [Accepted: 05/29/2019] [Indexed: 06/09/2023]
Abstract
Aflatoxin B1 (AFB1), a potential endocrine disrupter, has been shown to induce hepatotoxicity in animal models, but the effects of AFB1 on Leydig cell function are unclear. In this study, in vivo exposure to AFB1 at 15 and 150 μg/kg/day lowered serum testosterone (T), luteinizing hormone (LH), and follicle-stimulating hormone (FSH) levels, reduced Leydig cell number, and down-regulated the expression of testosterone biosynthesis-related genes. In vitro study showed that AFB1 (10 μM) significantly increased ROS levels, and decreased T production in Leydig cells by suppressing certain T-biosynthesis gene expressions. Moreover, AFB1 induced Leydig cell apoptosis through lowering pAMPK/AMPK ratio and increasing pmTOR/mTOR ratio, and then further up-regulating autophagy and apoptosis proteins, LC3, BECLIN 1, and BAX, as well as down-regulating autophagy flux protein P62 and anti-apoptosis protein BCL-2. AFB1-induced toxicity in Leydig cells was characterized by inhibiting T-biosynthesis gene expression, reducing Leydig cell number, promoting ROS production, and inducing cell apoptosis via suppressing AMPK/mTOR-mediated autophagy flux pathway.
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Affiliation(s)
- Xianwu Chen
- Center of Scientific Research, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China; Department of Pathology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Chao Li
- Center of Scientific Research, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Yong Chen
- Center of Scientific Research, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Chaobo Ni
- Center of Scientific Research, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Xiuxiu Chen
- Center of Scientific Research, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Linlei Zhang
- Center of Scientific Research, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Xuni Xu
- Center of Scientific Research, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China; The Second Clinical Medical School of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Min Chen
- Center of Scientific Research, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China; The Second Clinical Medical School of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Xinyi Ma
- Center of Scientific Research, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China; The Second Clinical Medical School of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Huilu Zhan
- Center of Scientific Research, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China; The Second Clinical Medical School of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Aoyu Xu
- Center of Scientific Research, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China; The Second Clinical Medical School of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Renshan Ge
- Center of Scientific Research, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Xiaoling Guo
- Center of Scientific Research, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China; The Second Clinical Medical School of Wenzhou Medical University, Wenzhou, Zhejiang, China.
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14
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Chen X, Mo J, Zhang S, Li X, Huang T, Zhu Q, Wang S, Chen X, Ge RS. 4-Bromodiphenyl Ether Causes Adrenal Gland Dysfunction in Rats during Puberty. Chem Res Toxicol 2019; 32:1772-1779. [PMID: 31423765 DOI: 10.1021/acs.chemrestox.9b00123] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Polybrominated diphenyl ethers (PBDEs) are a group of flame retardants with two or more bromines attached. They are endocrine disruptors. PBDEs photodegrade into 4-bromodiphenyl ether (BDE3). Whether BDE3 impairs adrenal cortical cell function during postnatal development still remains unknown. The aim of the current study was to investigate the influence of BDE3 on adrenal cortical cell function. Sprague-Dawley rats (35 days of age, male) were orally administered with BDE3 (0, 50, 100, and 200 mg/kg/day body weight) for 21 days. BDE3 significantly increased serum aldosterone and corticosterone levels at 200 mg/kg without affecting adrenocorticotropic hormone level. Further study showed that BDE3 up-regulated Cyp11b1 at 100 and 200 mg/kg and Scarb1, Star, Cyp11b2, Cyp21, and Nr5a1 mRNA levels in the 200 mg/kg group. BDE3 also decreased the phosphorylation of AMP-activated protein kinase (AMPK) at 200 mg/kg and increased PGC-1α and phosphorylated cyclic AMP-responsive element-binding protein (CREB)/CREB at 200 mg/kg. Taken together, these findings demonstrate that BDE3 stimulates adrenal cell function likely through decreasing phosphorylation of AMPK and increasing phosphorylation of CREB.
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Affiliation(s)
- Xiuxiu Chen
- Department of Anesthesiology , the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University , Wenzhou 325000 , China
| | - Jiaying Mo
- Department of Anesthesiology , the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University , Wenzhou 325000 , China
| | - Song Zhang
- Department of Anesthesiology , the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University , Wenzhou 325000 , China
| | - Xiaoheng Li
- Department of Anesthesiology , the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University , Wenzhou 325000 , China
| | - Tongliang Huang
- Department of Anesthesiology , the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University , Wenzhou 325000 , China
| | - Qiqi Zhu
- Department of Anesthesiology , the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University , Wenzhou 325000 , China
| | - Songxue Wang
- Department of Anesthesiology , the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University , Wenzhou 325000 , China
| | - Xianwu Chen
- Department of Anesthesiology , the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University , Wenzhou 325000 , China
| | - Ren-Shan Ge
- Department of Anesthesiology , the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University , Wenzhou 325000 , China
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15
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Lv Y, Li L, Fang Y, Chen P, Wu S, Chen X, Ni C, Zhu Q, Huang T, Lian Q, Ge RS. In utero exposure to bisphenol A disrupts fetal testis development in rats. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 246:217-224. [PMID: 30557795 DOI: 10.1016/j.envpol.2018.12.006] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2018] [Revised: 12/01/2018] [Accepted: 12/02/2018] [Indexed: 06/09/2023]
Abstract
Bisphenol A (BPA) is widely used in consumer products and is a potential endocrine disruptor linked with abnormal development of male reproductive tract. However, its action and its effects on the pathways in the development of male gonad are still unclear. Here we report that effects of BPA exposure during gestation on male gonad development. Sprague-Dawley rats were gavaged daily with BPA (0, 4, 40, and 400 mg/kg body weight) from gestational day 12 to day 21. BPA dose-dependently decreased serum testosterone levels (0.45 ± 0.08 ng/ml and 0.32 ± 0.08 ng/ml for 40 and 400 mg/kg BPA, respectively) versus the control level (1.11 ± 0.22 ng/ml, Mean ± SE). BPA lowered Leydig cell Insl3 and Hsd17b3 mRNA and their protein levels at doses of 40 and 400 mg/kg. BPA also lowered Leydig cell (Lhcgr, Cyp11a1, and Cyp17a1) and Sertoli cell (Amh) mRNA and their protein levels at 400 mg/kg. BPA decreased fetal Leydig cell number via inhibiting their proliferation, but it did not affect fetal Sertoli cell number. In conclusion, the current study shows that in utero exposure to BPA inhibits fetal Leydig and Sertoli cell differentiation, possibly disrupting the development of male reproductive tract.
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Affiliation(s)
- Yao Lv
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang, 325027, China
| | - Lili Li
- Department of Anesthesiology, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China.
| | - Yinghui Fang
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang, 325027, China
| | - Panpan Chen
- Department of Gynecology and Obstetrics, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang, 325027, China
| | - Siwen Wu
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang, 325027, China
| | - Xiuxiu Chen
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang, 325027, China
| | - Chaobo Ni
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang, 325027, China
| | - Qiqi Zhu
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang, 325027, China
| | - Tongliang Huang
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang, 325027, China
| | - Qingquan Lian
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang, 325027, China
| | - Ren-Shan Ge
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang, 325027, China.
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16
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Endocrine disruptors of inhibiting testicular 3β-hydroxysteroid dehydrogenase. Chem Biol Interact 2019; 303:90-97. [PMID: 30826252 DOI: 10.1016/j.cbi.2019.02.027] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Revised: 02/09/2019] [Accepted: 02/26/2019] [Indexed: 01/01/2023]
Abstract
Testicular 3β-hydroxysteroid dehydrogenase (HSD3B) is a steroidogenic enzyme, catalyzing the conversion of 3β-hydroxysteroids into 3-keto-steroids. Two distinct isoforms in the human are cloned, HSD3B1 and HSD3B2, and HSD3B2 is located in the testis. HSD3B2 is a two-substrate enzyme, which binds to cofactor NAD+ and a 3β-steroid. Many endocrine disruptors, including industrial compounds (phthalates, bisphenols, and perfluoroalkyl substances), insecticides and biocides (organochlorine insecticides and organotins), food additives (butylated hydroxyanisole, resveratrol, gossypol, flavones, and isoflavones), and drugs (etomidate, troglitazone, medroxyprogesterone acetate, and ketoconazole) inhibit testicular HSD3B, possibly interfering with androgen synthesis. In this review, we discuss the distinct testicular isoform of HSD3B, its gene, chemistry, subcellular location, and the endocrine disruptors that directly inhibit testicular HSD3B and their inhibitory modes.
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Huang X, Ma T, Yin Y. Dibutyltin Dichloride Retards Leydig Cell Developmental Regeneration in Adult Rat Testis. Front Pharmacol 2018; 9:1320. [PMID: 30555322 PMCID: PMC6283912 DOI: 10.3389/fphar.2018.01320] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Accepted: 10/29/2018] [Indexed: 12/21/2022] Open
Abstract
Dibutyltin dichloride (DBTCl), widely used as plastic stabilizer, can cause comprehensive toxicity. The present study aims to investigate the effects of DBTCl on rat Leydig cell developmental regeneration and characterize the related mechanism. Adult male Sprague Dawley rats were randomly divided into four groups and gavaged with saline (control) or 5, 10, or 20 mg/kg/day of DBTCl consecutively for 10 days. At the end of the DBTCl treatment, all rats received a single intraperitoneal injection (i.p.,) of 75 mg/kg ethane dimethane sulfonate (EDS) to eliminate all the adult Leydig cells and to induce Leydig cell developmental regeneration. Leydig cell developmental regeneration was evaluated by measuring the levels of serum testosterone, luteinizing hormone, and follicle-stimulating hormone on days 7, 35, and 56 post-EDS. Leydig cell gene and protein expression levels, as well as cell morphology and cell counts were also carried out on day 56 post-EDS. The present study found that DBTCl significantly reduced serum testosterone levels on days 35 and 56 post-EDS, but increased serum luteinizing hormone (LH) and follicle-stimulating hormone (FSH) levels on day 56 at ≥ 5 mg/kg/day. The mRNA and protein levels of Leydig (Lhcgr, Scarb1, Star, Cyp11a1, Hsd17b3, and Hsd11b1) and Sertoli cells (Fshr, Amh, and Sox9) were significantly downregulated in the DBTCl-treated testes compared to the control. Immunohistochemical staining showed that DBTCl-treatment caused fewer regenerated Leydig cells and impaired Sertoli cell development and function in the testis on day 56 post-EDS. In conclusion, the present study demonstrates that DBTCl retards rat Leydig cell developmental regeneration by downregulating steroidogenesis-related enzymes at the gene and protein levels, inhibiting Leydig cell proliferation and impairing Sertoli cell function and development.
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Affiliation(s)
- Xiande Huang
- Department of Urology, Gansu Provincial Hospital, Lanzhou, China
| | - Taoye Ma
- Department of Urology, Second Provincial People's Hospital of Gansu, Lanzhou, China
| | - Yongsheng Yin
- Department of Urology, Gansu Provincial Hospital, Lanzhou, China
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Chen Y, Li H, Mo J, Chen X, Wu K, Ge F, Ma L, Li X, Guo X, Zhao J, Ge RS. Perfluorododecanoic Acid Blocks Rat Leydig Cell Development during Prepuberty. Chem Res Toxicol 2018; 32:146-155. [DOI: 10.1021/acs.chemrestox.8b00241] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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19
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Fang Y, Ni C, Dong Y, Li H, Wu S, Li X, Lv Y, Huang T, Lian Q, Ge RS. In utero Exposure to Atrazine Disrupts Rat Fetal Testis Development. Front Pharmacol 2018; 9:1391. [PMID: 30555326 PMCID: PMC6280720 DOI: 10.3389/fphar.2018.01391] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Accepted: 11/12/2018] [Indexed: 12/20/2022] Open
Abstract
Atrazine (ATR) is a commonly used agricultural herbicide and a potential endocrine disruptor that may cause testicular dysgenesis. The objective of the present study was to investigate the effects of atrazine on fetal testis development after in utero exposure. Female Sprague-Dawley rats were gavaged daily with vehicle (corn oil, control) or atrazine (25, 50, and 100 mg/kg body weight/day) from gestational day 12 to 21. Atrazine dose-dependently decreased serum testosterone levels of male pups, with a significant difference from the control recorded at a dose of 100 mg/kg. In addition, atrazine significantly increased fetal Leydig cell aggregation at a dose of 100 mg/kg. Atrazine increased fetal Leydig cell number but not Sertoli cell number. However, atrazine down-regulated Scarb1 and Cyp17a1 in the fetal Leydig cell per se and Hsd17b3 and Dhh in the Sertoli cell per se. These results demonstrated that in utero exposure to atrazine disrupted rat fetal testis development.
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Affiliation(s)
- Yinghui Fang
- Department of Anesthesiology, Perioperative and Pain Medicine, Key Laboratory of Anesthesiology of Zhejiang Province, Zhejiang, China
| | - Chaobo Ni
- Department of Anesthesiology, Perioperative and Pain Medicine, Key Laboratory of Anesthesiology of Zhejiang Province, Zhejiang, China
| | - Yaoyao Dong
- Department of Pharmacy, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
| | - Huitao Li
- Department of Anesthesiology, Perioperative and Pain Medicine, Key Laboratory of Anesthesiology of Zhejiang Province, Zhejiang, China
| | - Siwen Wu
- Department of Anesthesiology, Perioperative and Pain Medicine, Key Laboratory of Anesthesiology of Zhejiang Province, Zhejiang, China
| | - Xiaoheng Li
- Department of Anesthesiology, Perioperative and Pain Medicine, Key Laboratory of Anesthesiology of Zhejiang Province, Zhejiang, China
| | - Yao Lv
- Department of Anesthesiology, Perioperative and Pain Medicine, Key Laboratory of Anesthesiology of Zhejiang Province, Zhejiang, China
| | - Tongliang Huang
- Department of Anesthesiology, Perioperative and Pain Medicine, Key Laboratory of Anesthesiology of Zhejiang Province, Zhejiang, China
| | - Qingquan Lian
- Department of Anesthesiology, Perioperative and Pain Medicine, Key Laboratory of Anesthesiology of Zhejiang Province, Zhejiang, China
| | - Ren-Shan Ge
- Department of Anesthesiology, Perioperative and Pain Medicine, Key Laboratory of Anesthesiology of Zhejiang Province, Zhejiang, China
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20
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Chen X, Dong Y, Tian E, Xie L, Wang G, Li X, Chen X, Chen Y, Lv Y, Ni C, Fang Y, Zhong Y, Ge RS. 4-Bromodiphenyl ether delays pubertal Leydig cell development in rats. CHEMOSPHERE 2018; 211:986-997. [PMID: 30119030 DOI: 10.1016/j.chemosphere.2018.08.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2018] [Revised: 07/31/2018] [Accepted: 08/02/2018] [Indexed: 06/08/2023]
Abstract
Polybrominated diphenyl ethers are a class of brominated flame retardants that are potential endocrine disruptors. 4-Bromodiphenyl ether (BDE-3) is the most abundant photodegradation product of higher polybrominated diphenyl ethers. However, whether BDE-3 affects Leydig cell development during puberty is still unknown. The objective of this study was to explore effects of BDE-3 on the pubertal development of rat Leydig cells. Male Sprague Dawley rats (35 days of age) were gavaged daily with BDE-3 (0, 50, 100, and 200 mg/kg body weight/day) for 21 days. BDE-3 decreased serum testosterone levels (1.099 ± 0.412 ng/ml at a dose of 200 mg/kg BDE-3 when compared to the control level (2.402 ± 0.184 ng/ml, mean ± S.E.). BDE-3 decreased Leydig cell size and cytoplasmic size at a dose of 200 mg/kg, decreased Lhcgr, Star, Dhh, and Sox9 mRNA levels at ≥ 100 mg/kg and Scarb1, Cyp11a1, Hsd17b3, and Fshr at 200 mg/kg. BED-3 also decreased the phosphorylation of AKT1, AKT2, ERK1/2, and AMPK at 100 or 200 mg/kg. BDE-3 in vitro induced ROS generation, inhibited androgen production, down-regulated Lhcgr, Scarb1, Star, Cyp11a1, Hsd3b1, Srd5a1, and Akr1c14 expression in immature Leydig cells after 24-h treatment. In conclusion, the current study indicates that BDE-3 disrupts Leydig cell development via suppressing AKT, ERK1/2, and AMPK phosphorylation and inducing ROS generation.
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Affiliation(s)
- Xianwu Chen
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Yaoyao Dong
- Department of Pharmacy, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Erpo Tian
- Jinjiang Maternity and Child Health Hospital, Chengdu, Sichuan 610000, China
| | - Lubin Xie
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Guimin Wang
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Xiaoheng Li
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Xiuxiu Chen
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Yong Chen
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Yao Lv
- Department of Pharmacy, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Chaobo Ni
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Yinghui Fang
- Department of Pharmacy, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Ying Zhong
- Jinjiang Maternity and Child Health Hospital, Chengdu, Sichuan 610000, China.
| | - Ren-Shan Ge
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China.
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21
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Ge F, Zheng W, Bao S, Wu K, Xiang S, Chen W, Chen X, Mo J, Zhou S, Wang Y, Lian Q, Ge RS. In utero exposure to triphenyltin disrupts rat fetal testis development. CHEMOSPHERE 2018; 211:1043-1053. [PMID: 30223319 DOI: 10.1016/j.chemosphere.2018.08.016] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 07/06/2018] [Accepted: 08/04/2018] [Indexed: 06/08/2023]
Abstract
Triphenyltin is an organotin that is widely used as an anti-fouling agent and may have endocrine-disrupting effects. The objective of the current study was to investigate effects of triphenyltin on the development of rat fetal testis. Female pregnant Sprague Dawley dams were gavaged daily with triphenyltin (0, 0.5, 1, and 2 mg/kg body weight/day) from gestational day 12 to day 21. Triphenyltin dose-dependently decreased serum testosterone levels (0.971 ± 0.072 and 0.972 ± 0.231 ng/ml at 1 and 2 mg/kg, respectively) from control level (2.099 ± 0.351 ng/ml). Triphenyltin at 1 and 2 mg/kg doses also induced fetal Leydig cell aggregation, decreased fetal Leydig cell size and cytoplasmic size. Triphenyltin decreased the expression levels of Lhcgr, Scarb1, Star, Cyp11a1, Cyp17a1, Insl3, Fshr, Pdgfa, and Sox9 by 0.5 mg/kg dose and above. However, triphenyltin did not affect Leydig and Sertoli cell numbers. In conclusion, the current study indicated that in utero exposure of triphenyltin disrupted fetal Leydig and Sertoli cell development.
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Affiliation(s)
- Fei Ge
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Wenwen Zheng
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Suhao Bao
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Keyang Wu
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Saiqiong Xiang
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Wanwan Chen
- Department of Pathology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Xiuxiu Chen
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Jiaying Mo
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Songyi Zhou
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Yiyan Wang
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Qingquan Lian
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China.
| | - Ren-Shan Ge
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China.
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22
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Zheng W, Ge F, Wu K, Chen X, Li X, Chen Y, Lv Y, Lian Q, Ge RS. In utero exposure to hexavalent chromium disrupts rat fetal testis development. Toxicol Lett 2018; 299:201-209. [PMID: 30315952 DOI: 10.1016/j.toxlet.2018.10.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Revised: 09/30/2018] [Accepted: 10/08/2018] [Indexed: 12/23/2022]
Abstract
Hexavalent chromium (Cr6+) acts as an endocrine disruptor. Herein, we investigated effects of Cr6+ on the development of rat fetal Leydig and Sertoli cells, which support differentiation of the male reproductive tract in late gestation. Female pregnant Sprague Dawley rats were gavaged with potassium dichromate (0, 3, 6, and 12 mg/kg) from gestational days (GD) 12 to GD 21. Leydig and Sertoli cell function was evaluated by investigating serum testosterone levels, cell number and distribution, and the expression levels of Leydig and Sertoli cell genes and proteins. Cr6+ increased serum testosterone level at dose of 3 mg/kg (1.170 ± 0.121 ng/ml vs. 0.720 ± 0.082 ng/ml in the control), while lowered it at dose of 12 mg/kg (0.400 ± 0.098 ng/ml). In addition, it showed that Cr6+ dose-dependently reduced Leydig cell size and cytoplasmic size and decreased the percentage of medium fetal Leydig cell cluster at dose of 12 mg/kg. Further study demonstrated that the expression of Leydig cell (Lhcgr, Scarb1, and Hsd3b1) and Sertoli cell (Fshr, Pdgfa, and Lif) genes in the testis was upregulated at dose of 3 mg/kg while the expression of Lhcgr, Hsd17b3 and Igf1 was downregulated by Cr6+ at dose of 12 mg/kg. In conclusion, Cr6+ had biphasic effects on fetal Leydig cell development with low dose to stimulate testosterone production and high dose to inhibit it, possibly via biphasically regulating growth factor gene expression in fetal Sertoli cells.
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Affiliation(s)
- Wenwen Zheng
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Fei Ge
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Keyang Wu
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Xianwu Chen
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Xiaoheng Li
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Yong Chen
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Yao Lv
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Qingquan Lian
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China.
| | - Ren-Shan Ge
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China.
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Liu J, Wang Y, Fang Y, Ni C, Ma L, Zheng W, Bao S, Li X, Lian Q, Ge RS. Gestational exposure to ziram disrupts rat fetal Leydig cell development. CHEMOSPHERE 2018; 203:393-401. [PMID: 29627606 DOI: 10.1016/j.chemosphere.2018.03.142] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2017] [Revised: 03/18/2018] [Accepted: 03/20/2018] [Indexed: 06/08/2023]
Abstract
Ziram is an endocrine disruptor and may cause birth abnormality of the male reproductive system. However, the effects of ziram on fetal Leydig cell (FLC) development are still unknown. The objective of the present study was to determine the endocrine-disrupting effect of ziram on rat FLC development after gestational exposure. Pregnant Sprague Dawley dams were randomly divided into 5 groups and were gavaged with 0 (corn oil, the control), 1, 2, 4, or 8 mg/kg ziram from gestational day 12 (GD12) to GD21. FLC development was evaluated by measuring serum testosterone, FLC number and distribution, and the expression levels of Leydig and Sertoli cell genes. Ziram significantly increased serum testosterone level at 1 mg/kg (1.350 ± 0.099 ng/ml vs. 0.989 ± 0.106 ng/ml in the control), while it remarkably lowered it at 8 mg/kg (0.598 ± 0.086 ng/ml). Quantitative immunohistochemical staining showed that ziram increased FLC number via stimulating cell proliferation at 1 mg/kg and lowered it via inhibiting its proliferation at 8 mg/kg without affecting Sertoli cell number. Further study demonstrated that the expression of Nr5a1, Lhcgr, Scarb1, Star, Cyp11a1, and Cyp17a1 genes and proteins in the testis was upregulated at 1 mg/kg and the expression of Leydig (Nr5a1, Lhcgr, Scarb1, Star, Cyp11a1, Cyp17a1, and Insl3) and Sertoli cell (Fshr, Hsd17b3, Dhh, Amh, and Sox9) genes and proteins was downregulated by ziram at 8 mg/kg. In conclusion, ziram had biphasic effects on FLC development with low dose to increase FLC number and function and high dose to decrease them.
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Affiliation(s)
- Jianpeng Liu
- Center of Scientific Research, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang 325027, China; Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang 325027, China
| | - Yiyan Wang
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang 325027, China
| | - Yinghui Fang
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang 325027, China
| | - Chaobo Ni
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang 325027, China
| | - Leikai Ma
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang 325027, China
| | - Wenwen Zheng
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang 325027, China
| | - Suhao Bao
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang 325027, China
| | - Xiaoheng Li
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang 325027, China
| | - Qingquan Lian
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang 325027, China
| | - Ren-Shan Ge
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang 325027, China.
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24
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Zhou S, Wang Y, Ma L, Chen X, Lü Y, Ge F, Chen Y, Chen X, Lian Q, Jin XD, Ge RS. Zearalenone Delays Rat Leydig Cell Regeneration. Toxicol Sci 2018; 164:60-71. [PMID: 29669061 DOI: 10.1093/toxsci/kfy077] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Affiliation(s)
| | | | | | - Xianwu Chen
- Center of Scientific Research, The Second Affiliated Hospital and Yuying Children’s Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Yao Lü
- Center of Scientific Research, The Second Affiliated Hospital and Yuying Children’s Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Fei Ge
- Department of Anesthesiology
| | | | - Xiaofang Chen
- Center of Scientific Research, The Second Affiliated Hospital and Yuying Children’s Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | | | - Xiao-Dong Jin
- Department of Urology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 31000, China
| | - Ren-Shan Ge
- Department of Anesthesiology
- Center of Scientific Research, The Second Affiliated Hospital and Yuying Children’s Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
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25
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Dong Y, Zhao Y, Zhu Q, Wang Z, Shan Y, Akingbemi BT, Chen R, Zhu L, Ge RS. Gestational exposure to tetrabutyltin blocks rat fetal Leydig cell development. Reprod Toxicol 2018; 78:111-119. [PMID: 29627429 DOI: 10.1016/j.reprotox.2018.04.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Revised: 03/28/2018] [Accepted: 04/03/2018] [Indexed: 11/24/2022]
Abstract
Tetrabutyltin is a stable organotin and may exhibit endocrine disrupting properties. Herein, we investigated effects of tetrabutyltin on the development of rat fetal Leydig cells, which support differentiation of the male reproductive tract in late gestation. Female pregnant Sprague Dawley rats were gavaged with tetrabutyltin (0, 100, 200, and 500 mg/kg) from gestational day (GD) 12 to GD 21. Tetrabutyltin dose-dependently decreased testicular testosterone levels (0.756 ± 0.208 and 0.813 ± 0.277 ng/testis at the 200 and 500 mg/kg doses, respectively) compared to control (1.692 ± 0.218 ng/testis) at GD 21. Furthermore, tetrabutyltin induced fetal Leydig cell aggregation, decreased fetal Leydig cell size and cytoplasmic size at the ≥100 mg/kg doses, and downregulated the expression levels of Scarb1, Cyp17a1, and Insl3 at doses ≥100 mg/kg and Star expression at 200 mg/kg. Taking together, the present results indicated that prenatal exposure of male rats to tetrabutyltin affected fetal Leydig cell development.
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Affiliation(s)
- Yaoyao Dong
- The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Yu Zhao
- The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Qiqi Zhu
- The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Zhe Wang
- The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Yuanyuan Shan
- The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Benson T Akingbemi
- Department of Anatomy, Physiology and Pharmacology, Auburn University, Auburn AL 36849, USA
| | - Ruijie Chen
- The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China.
| | - Lihe Zhu
- Department of Pathology, Wenzhou Hospital of Integrated Traditional and Western Medicine, Wenzhou 325000, China.
| | - Ren-Shan Ge
- The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China.
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Wu X, Liu J, Duan Y, Gao S, Lü Y, Li X, Zhu Q, Chen X, Lin J, Ye L, Ge RS. A Short-Term Exposure to Tributyltin Blocks Leydig Cell Regeneration in the Adult Rat Testis. Front Pharmacol 2017; 8:704. [PMID: 29075189 PMCID: PMC5643909 DOI: 10.3389/fphar.2017.00704] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2017] [Accepted: 09/21/2017] [Indexed: 11/13/2022] Open
Abstract
Background: Tributyltin (TBT) is widely used as an antifouling agent that may cause reproductive toxicity. The mechanism of TBT on Leydig cell development is still unknown. The objective of the present study was to investigate whether a brief exposure to low doses of TBT permanently affects Leydig cell development and to clarify the underlying mechanism. Methods: Adult male Sprague Dawley rats were randomly assigned into four groups and gavaged normal saline (control), 0.1, 1.0, or 10.0 mg/kg/day TBT for a consecutive 10 days, respectively. At the end of TBT treatment, all rats received a single intraperitoneal injection of 75 mg/kg ethane dimethane sulfonate (EDS) to eliminate all of adult Leydig cells. Leydig cells began a developmental regeneration process on post-EDS day 35. The Leydig cell regeneration was evaluated by measuring serum testosterone, luteinizing hormone, and follicle-stimulating hormone levels on post-EDS day 7, 35, and 56, the expression levels of Leydig cell genes, Leydig cell morphology and number and proliferation on post-EDS day 56. Results: TBT significantly reduced serum testosterone levels on post-EDS day 35 and 56 and increased serum luteinizing hormone and follicle-stimulating hormone levels on post-EDS day 56 at ≥1 mg/kg/day. Immunohistochemical staining showed that there were fewer regenerated Leydig cells in the TBT-treated testis on post-EDS day 56. Further study demonstrated that the mRNA or protein levels of Leydig (Lhcgr, Cyp11a1, Hsd3b1, Cyp17a1, and Hsd17b3) and Sertoli cells (Fshr, Dhh, and Sox9) were significantly down-regulated in the TBT-treated testes when compared to the control. Immunofluorescent staining showed that TBT inhibited Leydig cell proliferation as judged by the reduced number of proliferating cyclin nuclear antigen-positive Leydig cells on post-EDS day 35. Conclusion: The present study demonstrated that a short-term TBT exposure blocked Leydig cell developmental regeneration process via down-regulating steroidogenesis-related proteins and inhibiting the proliferation of Leydig cells.
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Affiliation(s)
- Xiaolong Wu
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Jianpeng Liu
- Center of Scientific Research, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yue Duan
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Shiyu Gao
- Center of Scientific Research, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yao Lü
- Center of Scientific Research, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Xiaoheng Li
- Center of Scientific Research, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Qiqi Zhu
- Center of Scientific Research, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Xianwu Chen
- Center of Scientific Research, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Jing Lin
- Center of Scientific Research, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Leping Ye
- Department of Pediatric Pulmonology, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
- *Correspondence: Ren-Shan Ge, Leping Ye,
| | - Ren-Shan Ge
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
- Center of Scientific Research, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
- *Correspondence: Ren-Shan Ge, Leping Ye,
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