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Li YZ, Huang SH, Shi S, Chen WX, Wei YF, Zou BJ, Yao W, Zhou L, Liu FH, Gao S, Yan S, Qin X, Zhao YH, Chen RJ, Gong TT, Wu QJ. Association of long-term particulate matter exposure with all-cause mortality among patients with ovarian cancer: A prospective cohort. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 884:163748. [PMID: 37120017 DOI: 10.1016/j.scitotenv.2023.163748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 04/19/2023] [Accepted: 04/22/2023] [Indexed: 05/03/2023]
Abstract
BACKGROUND Evidence of the association between particles with a diameter of 2.5 μm or less (PM2.5) in long term and ovarian cancer (OC) mortality is limited. METHODS This prospective cohort study analyzed data collected between 2015 and 2020 from 610 newly diagnosed OC patients, aged 18-79 years. The residential average PM2.5 concentrations 10 years before the date of OC diagnosis were assessed by random forest models at a 1 km × 1 km resolution. Cox proportional hazard models fully adjusted for the covariates (including age at diagnosis, education, physical activity, kitchen ventilation, FIGO stage, and comorbidities) and distributed lag non-linear models were used to estimate the hazard ratios (HRs) and 95 % confidence intervals (CIs) of PM2.5 and all-cause mortality of OC. RESULTS During a median follow-up of 37.6 months (interquartile: 24.8-50.5 months), 118 (19.34 %) deaths were confirmed among 610 OC patients. One-year PM2.5 exposure levels before OC diagnosis was significantly associated with an increase in all-cause mortality among OC patients (single-pollutant model: HR = 1.22, 95 % CI: 1.02-1.46; multi-pollutant models: HR = 1.38, 95 % CI: 1.10-1.72). Furthermore, during 1 to 10 years prior to diagnosis, the lag-specific effect of long-term PM2.5 exposure on the all-cause mortality of OC had a risk increase for lag 1-6 years, and the exposure-response relationship was linear. Of note, significant interactions between several immunological indicators as well as solid fuel use for cooking and ambient PM2.5 concentrations were observed. CONCLUSION Higher ambient PM2.5 concentrations were associated with an increased risk of all-cause mortality among OC patients, and there was a lag effect in long-term PM2.5 exposure.
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Affiliation(s)
- Yi-Zi Li
- Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, China; Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang, China; Key Laboratory of Precision Medical Research on Major Chronic Disease, Shengjing Hospital of China Medical University, Shenyang, China
| | - Shu-Hong Huang
- Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, China; Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang, China; Key Laboratory of Precision Medical Research on Major Chronic Disease, Shengjing Hospital of China Medical University, Shenyang, China
| | - Su Shi
- School of Public Health, Key Lab of Public Health Safety of the Ministry of Education and NHC Key Lab of Health Technology Assessment, Fudan University, Shanghai, China
| | - Wen-Xiao Chen
- Department of Sports Medicine and Joint Surgery, The People's Hospital of Liaoning Province, Shenyang, China
| | - Yi-Fan Wei
- Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, China; Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang, China; Key Laboratory of Precision Medical Research on Major Chronic Disease, Shengjing Hospital of China Medical University, Shenyang, China
| | - Bing-Jie Zou
- Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, China; Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang, China; Key Laboratory of Precision Medical Research on Major Chronic Disease, Shengjing Hospital of China Medical University, Shenyang, China
| | - Wei Yao
- Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, China; Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang, China; Key Laboratory of Precision Medical Research on Major Chronic Disease, Shengjing Hospital of China Medical University, Shenyang, China
| | - Lu Zhou
- School of Public Health, Key Lab of Public Health Safety of the Ministry of Education and NHC Key Lab of Health Technology Assessment, Fudan University, Shanghai, China
| | - Fang-Hua Liu
- Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, China; Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang, China; Key Laboratory of Precision Medical Research on Major Chronic Disease, Shengjing Hospital of China Medical University, Shenyang, China
| | - Song Gao
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Shi Yan
- Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, China; Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang, China; Key Laboratory of Precision Medical Research on Major Chronic Disease, Shengjing Hospital of China Medical University, Shenyang, China
| | - Xue Qin
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yu-Hong Zhao
- Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, China; Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang, China; Key Laboratory of Precision Medical Research on Major Chronic Disease, Shengjing Hospital of China Medical University, Shenyang, China
| | - Ren-Jie Chen
- School of Public Health, Key Lab of Public Health Safety of the Ministry of Education and NHC Key Lab of Health Technology Assessment, Fudan University, Shanghai, China
| | - Ting-Ting Gong
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, China.
| | - Qi-Jun Wu
- Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, China; Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang, China; Key Laboratory of Precision Medical Research on Major Chronic Disease, Shengjing Hospital of China Medical University, Shenyang, China; Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, China; Key Laboratory of Reproductive and Genetic Medicine (China Medical University), National Health Commission, Shenyang, China.
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Oladipupo I, Ali T, Hein DW, Pagidas K, Bohler H, Doll MA, Mann ML, Gentry A, Chiang JL, Pierson RC, Torres S, Reece E, Taylor KC. Association between cigarette smoking and ovarian reserve among women seeking fertility care. PLoS One 2022; 17:e0278998. [PMID: 36512605 PMCID: PMC9746951 DOI: 10.1371/journal.pone.0278998] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 11/28/2022] [Indexed: 12/15/2022] Open
Abstract
INTRODUCTION This study examined the association of smoking with ovarian reserve in a cross-sectional study of 207 women enrolled in the Louisville Tobacco Smoke Exposure, Genetic Susceptibility, and Infertility (LOUSSI) Study and assessed effect modification by NAT2 acetylator phenotype. METHODS Information on current smoking status was collected using a structured questionnaire and confirmed by cotinine assay. Serum anti-Müllerian hormone (AMH) levels were used to assess ovarian reserve. Diminished ovarian reserve (DOR) was defined as AMH <1ng/mL. Single nucleotide polymorphisms in the NAT2 gene, which metabolizes toxins found in cigarette smoke, were analyzed to determine NAT2 acetylator status. Linear and logistic regression were used to determine the effects of smoking on ovarian reserve and evaluate effect modification by NAT2. Regression analyses were stratified by polycystic ovary syndrome (PCOS) status and adjusted for age. RESULTS Current smoking status, either passive or active as measured by urinary cotinine assay, was not significantly associated with DOR. For dose-response assessed using self-report, the odds of DOR increased significantly for every additional cigarette currently smoked (Odds ratio, OR:1.08; 95% confidence interval, 95%CI:1.01-1.15); additionally, every 1 pack-year increase in lifetime exposure was associated with an increased odds of DOR among women without PCOS (OR: 1.08 95%CI: 0.99-1.18). These trends appear to be driven by the heavy or long-term smokers. Effect modification by NAT2 genotype was not established. CONCLUSION A history of heavy smoking may indicate increased risk of diminished ovarian reserve.
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Affiliation(s)
- Islamiat Oladipupo
- Department of Epidemiology and Population Health, School of Public Health and Information Sciences, University of Louisville, Louisville, KY, United States of America
- * E-mail:
| | - T’shura Ali
- Department of Epidemiology and Population Health, School of Public Health and Information Sciences, University of Louisville, Louisville, KY, United States of America
| | - David W. Hein
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY, United States of America
| | - Kelly Pagidas
- Department of Obstetrics, Gynecology, and Women’s Health, Division of Reproductive Endocrinology, and Infertility, University of Louisville School of Medicine, Louisville, KY, United States of America
| | - Henry Bohler
- Department of Obstetrics, Gynecology, and Women’s Health, Division of Reproductive Endocrinology, and Infertility, University of Louisville School of Medicine, Louisville, KY, United States of America
| | - Mark A. Doll
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY, United States of America
| | - Merry Lynn Mann
- Department of Obstetrics, Gynecology, and Women’s Health, Division of Reproductive Endocrinology, and Infertility, University of Louisville School of Medicine, Louisville, KY, United States of America
| | - Adrienne Gentry
- Department of Obstetrics, Gynecology, and Women’s Health, Division of Reproductive Endocrinology, and Infertility, University of Louisville School of Medicine, Louisville, KY, United States of America
| | - Jasmine L. Chiang
- Department of Obstetrics, Gynecology, and Women’s Health, Division of Reproductive Endocrinology, and Infertility, University of Louisville School of Medicine, Louisville, KY, United States of America
| | - Rebecca C. Pierson
- Department of Obstetrics, Gynecology, and Women’s Health, Division of Reproductive Endocrinology, and Infertility, University of Louisville School of Medicine, Louisville, KY, United States of America
| | - Sashia Torres
- Department of Epidemiology and Population Health, School of Public Health and Information Sciences, University of Louisville, Louisville, KY, United States of America
| | - Emily Reece
- Department of Epidemiology and Population Health, School of Public Health and Information Sciences, University of Louisville, Louisville, KY, United States of America
| | - Kira C. Taylor
- Department of Epidemiology and Population Health, School of Public Health and Information Sciences, University of Louisville, Louisville, KY, United States of America
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Xue L, Li X, Zhu X, Zhang J, Zhou S, Tang W, Chen D, Chen Y, Dai J, Wu M, Wu M, Wang S. Carbon tetrachloride exposure induces ovarian damage through oxidative stress and inflammatory mediated ovarian fibrosis. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 242:113859. [PMID: 35816842 DOI: 10.1016/j.ecoenv.2022.113859] [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: 05/05/2022] [Revised: 07/02/2022] [Accepted: 07/03/2022] [Indexed: 06/15/2023]
Abstract
Carbon tetrachloride (CCL4) is widely used as a chemical intermediate and as a feedstock in the production of chlorofluorocarbons. CCL4 is highly toxic in the liver, kidney, testicle, brain and other tissues. However, the effect of CCL4 on ovarian function has not been reported. In this study, we found that the mice treated with CCL4 showed decreased ovarian function with disturbed estrus cycle, decreased serum level of 17β-estradiol and the reduced number of healthy follicles. Ovarian damage was accompanied by oxidative stress and the production of proinflammatory cytokines, especially interleukins. The indicators of oxidative stress, 4-Hydroxynonenal (4-HNE), 8-hydroxy-2´-deoxyguanosine (8-OHdG), 3-Nitrotyrosine (3-NT) and malondialdehyde (MDA), and the levels of proinflammatory cytokines IL-1α, IL-1β, IL-6 and IL-11 were increased, while the antioxidants, including superoxide dismutase (SOD), nuclear factor erythroid2-related factor 2 (NRF2) and heme oxygenase-1 (HO-1), were decreased in the CCL4 group. In the CCL4 treated group, the results of Sirius Red staining, immunohistochemistry and qPCR indicated that proinflammatory cytokines caused further ovarian fibrosis. And CCL4 could also promote ovarian thecal cells to secrete inflammatory cytokines, resulting in fibrosis in vitro. In addition, CCL4 inhibited oocyte development and triggered oocyte apoptosis. In conclusion, CCL4 exposure causes ovarian damage by strong oxidative stress and the high expression of the proinflammatory cytokine mediated ovarian fibrosis.
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Affiliation(s)
- Liru Xue
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 430030 Wuhan, Hubei, China; National Clinical Research Center for Obstetrical and Gynecological Diseases, 430030 Wuhan, Hubei, China; Key Laboratory of Cancer Invasion and Metastasis, Ministry of Education, 430030 Wuhan, Hubei, China
| | - Xiang Li
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 430030 Wuhan, Hubei, China; National Clinical Research Center for Obstetrical and Gynecological Diseases, 430030 Wuhan, Hubei, China; Key Laboratory of Cancer Invasion and Metastasis, Ministry of Education, 430030 Wuhan, Hubei, China; Department of Obstetrics and Gynecology, Xiehe Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Xiaoran Zhu
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 430030 Wuhan, Hubei, China; National Clinical Research Center for Obstetrical and Gynecological Diseases, 430030 Wuhan, Hubei, China; Key Laboratory of Cancer Invasion and Metastasis, Ministry of Education, 430030 Wuhan, Hubei, China
| | - Jinjin Zhang
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 430030 Wuhan, Hubei, China; National Clinical Research Center for Obstetrical and Gynecological Diseases, 430030 Wuhan, Hubei, China; Key Laboratory of Cancer Invasion and Metastasis, Ministry of Education, 430030 Wuhan, Hubei, China
| | - Su Zhou
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 430030 Wuhan, Hubei, China; National Clinical Research Center for Obstetrical and Gynecological Diseases, 430030 Wuhan, Hubei, China; Key Laboratory of Cancer Invasion and Metastasis, Ministry of Education, 430030 Wuhan, Hubei, China
| | - Weicheng Tang
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 430030 Wuhan, Hubei, China; National Clinical Research Center for Obstetrical and Gynecological Diseases, 430030 Wuhan, Hubei, China; Key Laboratory of Cancer Invasion and Metastasis, Ministry of Education, 430030 Wuhan, Hubei, China
| | - Dan Chen
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 430030 Wuhan, Hubei, China; National Clinical Research Center for Obstetrical and Gynecological Diseases, 430030 Wuhan, Hubei, China; Key Laboratory of Cancer Invasion and Metastasis, Ministry of Education, 430030 Wuhan, Hubei, China
| | - Yingying Chen
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 430030 Wuhan, Hubei, China; National Clinical Research Center for Obstetrical and Gynecological Diseases, 430030 Wuhan, Hubei, China; Key Laboratory of Cancer Invasion and Metastasis, Ministry of Education, 430030 Wuhan, Hubei, China
| | - Jun Dai
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 430030 Wuhan, Hubei, China; National Clinical Research Center for Obstetrical and Gynecological Diseases, 430030 Wuhan, Hubei, China; Key Laboratory of Cancer Invasion and Metastasis, Ministry of Education, 430030 Wuhan, Hubei, China
| | - Meng Wu
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 430030 Wuhan, Hubei, China; National Clinical Research Center for Obstetrical and Gynecological Diseases, 430030 Wuhan, Hubei, China; Key Laboratory of Cancer Invasion and Metastasis, Ministry of Education, 430030 Wuhan, Hubei, China.
| | - Mingfu Wu
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 430030 Wuhan, Hubei, China; National Clinical Research Center for Obstetrical and Gynecological Diseases, 430030 Wuhan, Hubei, China; Key Laboratory of Cancer Invasion and Metastasis, Ministry of Education, 430030 Wuhan, Hubei, China.
| | - Shixuan Wang
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 430030 Wuhan, Hubei, China; National Clinical Research Center for Obstetrical and Gynecological Diseases, 430030 Wuhan, Hubei, China; Key Laboratory of Cancer Invasion and Metastasis, Ministry of Education, 430030 Wuhan, Hubei, China.
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Yang J, Xu H, Gao R, Liu X, He J, Zhou M, Ding Y, Li F, Geng Y, Mu X, Liu T, Wang Y, Chen X. Exposure to Benzo(a)pyrene damages mitochondrial function via suppressing mitochondrial melatonin receptors in ovarian corpus luteum during early pregnancy. Chem Biol Interact 2022; 365:110085. [DOI: 10.1016/j.cbi.2022.110085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 07/03/2022] [Accepted: 07/29/2022] [Indexed: 11/25/2022]
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Perono GA, Petrik JJ, Thomas PJ, Holloway AC. The effects of polycyclic aromatic compounds (PACs) on mammalian ovarian function. Curr Res Toxicol 2022; 3:100070. [PMID: 35492299 PMCID: PMC9043394 DOI: 10.1016/j.crtox.2022.100070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 03/24/2022] [Accepted: 04/01/2022] [Indexed: 12/09/2022] Open
Abstract
Toxicity of polycyclic aromatic compounds (PACs) is limited to a subset of PACs. Exposure to these compounds impact major processes necessary for ovarian function. PAC exposure causes follicle loss and aberrant steroid production and angiogenesis. PAC exposure may increase the risk for impaired fertility and ovarian pathologies. The study of PACs as ovarian toxicants should include additional compounds.
Polycyclic aromatic compounds (PACs) are a broad class of contaminants ubiquitously present in the environment due to natural and anthropogenic activities. With increasing industrialization and reliance on petroleum worldwide, PACs are increasingly being detected in different environmental compartments. Previous studies have shown that PACs possess endocrine disruptive properties as these compounds often interfere with hormone signaling and function. In females, the ovary is largely responsible for regulating reproductive and endocrine function and thus, serves as a primary target for PAC-mediated toxicity. Perturbations in the signaling pathways that mediate ovarian folliculogenesis, steroidogenesis and angiogenesis can lead to adverse reproductive outcomes including polycystic ovary syndrome, premature ovarian insufficiency, and infertility. To date, the impact of PACs on ovarian function has focused predominantly on polycyclic aromatic hydrocarbons like benzo(a)pyrene, 3-methylcholanthrene and 7,12-dimethylbenz[a]anthracene. However, investigation into the impact of substituted PACs including halogenated, heterocyclic, and alkylated PACs on mammalian reproduction has been largely overlooked despite the fact that these compounds are found in higher abundance in free-ranging wildlife. This review aims to discuss current literature on the effects of PACs on the ovary in mammals, with a particular focus on folliculogenesis, steroidogenesis and angiogenesis, which are key processes necessary for proper ovarian functions.
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Rahmani Z, Karimpour Malekshah A, Zargari M, Talebpour Amiri F. Effect of prenatal exposure to Benzo[a]pyrene on ovarian toxicity and reproductive dysfunction: Protective effect of atorvastatin in the embryonic period. ENVIRONMENTAL TOXICOLOGY 2021; 36:1683-1693. [PMID: 33978294 DOI: 10.1002/tox.23164] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 04/05/2021] [Accepted: 05/03/2021] [Indexed: 06/12/2023]
Abstract
As an environmental contaminant, Benzo[a]pyrene (B[a]P; BaP) disrupts the antioxidant signaling and thus leads to the induction of oxidative stress and the damage of DNA in the ovary. low-dose atorvastatin (ATV) has antioxidant and anti-apoptotic properties. The present study aimed to survey the effects of prenatal exposure to BaP on ovarian toxicity and also to investigate the protective role of ATV in reducing ovarian toxicity. In this study, rats were divided into seven groups: control, ATV (10 mg/kg), oil, BaP (10 and 20 mg/kg), and ATV + BaP (10 and 20 mg/kg). BaP and ATV were administrated from gestation day 7-16 (GD7 to GD16), orally. 10 weeks after the birth, female offsprings were examined for oxidative stress markers, sex hormones, ovarian and tubular tissue structure, and the apoptosis markers. Data showed that BaP significantly reduced glutathione, increased malondialdehyde level, and disrupted the tissue structure of the ovary. Moreover, estrogen and progesterone levels significantly decreased in the offsprings rats. Also, BaP increased caspase-3 immunoreactivity. Atorvastatin treatment along with BaP in the embryonic period were able to bring the antioxidant status and sex hormones levels relatively close to normal. Besides, histological findings showed that atorvastatin was able to improve ovarian and oviduct abnormalities caused by BaP. Based on the above studies be concluded that atorvastatin in the embryonic during was able to reduce ovarian damage caused by BaP with antioxidant and anti-apoptotic properties.
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Affiliation(s)
- Zahra Rahmani
- Department of Anatomy, Faculty of Medicine, Molecular and Cell Biology Research Center, Mazandaran University of Medical Sciences, Sari, Iran
- Student Research Committee, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Abbasali Karimpour Malekshah
- Department of Anatomy, Faculty of Medicine, Molecular and Cell Biology Research Center, Mazandaran University of Medical Sciences, Sari, Iran
| | - Mehryar Zargari
- Department of Biochemistry, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Fereshteh Talebpour Amiri
- Department of Anatomy, Faculty of Medicine, Molecular and Cell Biology Research Center, Mazandaran University of Medical Sciences, Sari, Iran
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Zhan S, Huang J. Effects of Cigarette Smoking on Preimplantation Embryo Development. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1300:137-150. [PMID: 33523432 DOI: 10.1007/978-981-33-4187-6_6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
Abstract
In this chapter, we first gave a brief introduction to the detriments of cigarette smoking, with an emphasis on its adverse effects on female reproductive health. Then, we outlined recent advances about the impacts of cigarette smoke on preimplantation embryo development. Additionally, toxicities of cadmium and benzo(a)pyrene (BaP) at this specific developmental window were also discussed, to illustrate the potential mechanisms involved in cigarette smoke-associated embryotoxicity. Finally, we provide an overview of the issues to be solved in the future research. Further studies about the molecular mechanism of cigarette smoking-associated female infertility may provide vital insights into developing new interventions for the women smokers and thus improving their reproductive outcomes.
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Affiliation(s)
- Shaoquan Zhan
- Center for Reproductive Medicine, the Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Junjiu Huang
- Key Laboratory of Reproductive Medicine of Guangdong Province, School of Life Sciences and the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.
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Xu H, Mu X, Ding Y, Tan Q, Liu X, He J, Gao R, Li N, Geng Y, Wang Y, Chen X. Melatonin alleviates benzo(a)pyrene-induced ovarian corpus luteum dysfunction by suppressing excessive oxidative stress and apoptosis. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 207:111561. [PMID: 33254415 DOI: 10.1016/j.ecoenv.2020.111561] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 10/14/2020] [Accepted: 10/22/2020] [Indexed: 06/12/2023]
Abstract
Benzo(a)pyrene (B(a)P) is a widespread persistent organic pollutant (POP) and a well-known endocrine disruptor. Exposure to BaP is known to disrupt the steroid balance and impair embryo implantation, but the mechanism under it remains unclear. The corpus luteum (CL), the primary source of progesterone during early pregnancy, plays a pivotal role in embryo implantation and pregnancy maintenance. The inappropriate luteal function may result in implantation failure and spontaneous abortions. Therefore, this study was conducted to assess the effects and potential mechanisms of B(a)P on the CL function. Our results showed that pregnant mice received B(a)P displayed impaired embryo implantation and dysfunction of ovarian CL. The estrogen and progesterone levels decreased by B(a)P. In vitro, exposure to BPDE, which is the metabolite of B(a)P, affected the luteinization of granular cell KK-1. Additionally, melatonin and its receptors, which are important for ovarian function and anti-oxidative damage, were affected by B(a)P or BPDE. B(a)P or BPDE-treated alone impaired antioxidant capacity of ovarian granulosa cells, caused an increasing of ROS and cell apoptosis, and disrupted the PI3K/AKT/GSK3β signaling pathway in vivo and in vitro. Co-treatment with melatonin alleviated B(a)P or BPDE-induced CL dysfunction by ameliorating oxidative stress, counteracting phosphorylation of PI3K/AKT/GSK3β signaling pathway, decreasing the apoptosis of the ovarian cells. Moreover, activation of the melatonin receptor by ramelteon in KK-1 cells exhibits an analogous protective effect as melatonin. In conclusion, our findings not only firstly clarify the potential mechanisms of BaP-induced CL dysfunction, but also extend the understanding about the ovarian protection of melatonin and its receptors against B(a)P exposure.
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Affiliation(s)
- Hanting Xu
- Laboratory of Reproductive Biology, School of Public Health and Management, Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Box 197, No.1 Yixueyuan Road, Yuzhong District, Chongqing 400016, PR China.
| | - Xinyi Mu
- Laboratory of Reproductive Biology, School of Public Health and Management, Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Box 197, No.1 Yixueyuan Road, Yuzhong District, Chongqing 400016, PR China.
| | - Yubin Ding
- Laboratory of Reproductive Biology, School of Public Health and Management, Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Box 197, No.1 Yixueyuan Road, Yuzhong District, Chongqing 400016, PR China.
| | - Qiman Tan
- Laboratory of Reproductive Biology, School of Public Health and Management, Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Box 197, No.1 Yixueyuan Road, Yuzhong District, Chongqing 400016, PR China.
| | - Xueqing Liu
- Laboratory of Reproductive Biology, School of Public Health and Management, Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Box 197, No.1 Yixueyuan Road, Yuzhong District, Chongqing 400016, PR China.
| | - Junlin He
- Laboratory of Reproductive Biology, School of Public Health and Management, Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Box 197, No.1 Yixueyuan Road, Yuzhong District, Chongqing 400016, PR China.
| | - Rufei Gao
- Laboratory of Reproductive Biology, School of Public Health and Management, Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Box 197, No.1 Yixueyuan Road, Yuzhong District, Chongqing 400016, PR China.
| | - Nanyan Li
- Laboratory of Reproductive Biology, School of Public Health and Management, Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Box 197, No.1 Yixueyuan Road, Yuzhong District, Chongqing 400016, PR China.
| | - Yanqing Geng
- Laboratory of Reproductive Biology, School of Public Health and Management, Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Box 197, No.1 Yixueyuan Road, Yuzhong District, Chongqing 400016, PR China.
| | - Yingxiong Wang
- Laboratory of Reproductive Biology, School of Public Health and Management, Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Box 197, No.1 Yixueyuan Road, Yuzhong District, Chongqing 400016, PR China.
| | - Xuemei Chen
- Laboratory of Reproductive Biology, School of Public Health and Management, Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Box 197, No.1 Yixueyuan Road, Yuzhong District, Chongqing 400016, PR China.
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Gao M, Li H, Dang F, Chen L, Liu X, Gao J. Induction of proliferative and mutagenic activity by benzo(a)pyrene in PC-3 cells via JAK2/STAT3 pathway. Mutat Res 2020; 821:111720. [PMID: 32841893 DOI: 10.1016/j.mrfmmm.2020.111720] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 07/26/2020] [Accepted: 08/05/2020] [Indexed: 12/12/2022]
Abstract
Environmental carcinogen benzo(a)pyrene (BaP) is a representative compound of polycyclic aromatic hydrocarbons (PAHs). BaP is strongly associated with prostate carcinogenesis. However, the molecular mechanism of BaP in development of prostate carcinoma remains largely unknown. The aim of this study was to investigate the effect and mechanism of BaP on the development in prostate cancer. PC-3 cells were exposed to different concentrations of BaP for 24, 48, 72 h, respectively. We analyzed the effect of BaP on PC-3 cell viability, cell cycle, DNA strand breaks, mutagenic activity, and migration. The expression of associated regulatory genes and the effect of JAK2/STAT3 signaling were also measured to explore the relationships among BaP metabolism, the JAK2/STAT3 pathway and proliferative activity in PC-3 cells. We observed significant effects on proliferation, DNA strand breaks and mutagenic activity after BaP exposure in PC-3 cells, and inhibitors of CYP1 and the AhR transcription factor α -naphthoflavone (ANF) and CH223191 treatment clearly reduced both cell survival and mutagenesis associated with BaP exposure. Reduction in G0-G1 phase population and elevation in S phase were observed after BaP exposure. Migratory cells for PC-3 were significantly increased. The results were further confirmed by the expression of mRNA levels in the significant increments of Snail, Slug, MMP-9, CYP1A1, CYP1B1, CycilnD1, CDK4 and significant reduction of E-cadherin. Significant enhancements were found in the expression of JAK2, STAT3 after BaP treatment. Additionally, activator IL-6 significantly enhanced the effect of BaP on cell survival, mutagenic activity, Cyclin D1, CDK4, Snail, and JAK2/STAT3 expression in PC-3 cells. Significant reductions in cell survival, mutagenic activity, Cyclin D1, CDK4, Snail, and JAK2/STAT3 expression were found after inhibitor AG490, ANF and CHJ223191 treatment. These findings reveal that BaP enhances the proliferative and mutagenic activity via JAK2-STAT3 pathway in PC-3 cells, and provide the additional evidence to understand the crucial role of BaP in prostate cancer carcinogenesis.
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Affiliation(s)
- Meili Gao
- Department of Biological Science and Engineering, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi Province, 710049, China; Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, Department of Preventive Dentistry, Colleague of Stomatology, Xi'an Jiaotong University, Xi'an, Shaanxi Province, 710004, China.
| | - Hong Li
- Ankang Blood Station, Shaanxi Province, 725000, China
| | - Fan Dang
- Department of Biological Science and Engineering, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi Province, 710049, China
| | - Lan Chen
- Center of Shared Experimental Facilities, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Xiaojing Liu
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, Department of Preventive Dentistry, Colleague of Stomatology, Xi'an Jiaotong University, Xi'an, Shaanxi Province, 710004, China
| | - Jianghong Gao
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, Department of Preventive Dentistry, Colleague of Stomatology, Xi'an Jiaotong University, Xi'an, Shaanxi Province, 710004, China
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Ye X, Pan W, Li C, Ma X, Yin S, Zhou J, Liu J. Exposure to polycyclic aromatic hydrocarbons and risk for premature ovarian failure and reproductive hormones imbalance. J Environ Sci (China) 2020; 91:1-9. [PMID: 32172957 DOI: 10.1016/j.jes.2019.12.015] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 12/29/2019] [Accepted: 12/29/2019] [Indexed: 06/10/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are a typical class of persistent organic pollutants that is ubiquitous worldwide. Previous animal studies suggested that PAHs had adverse effects on female reproduction. However, the human data regarding relationship of PAHs exposure with women reproductive health, such as ovarian dysfunction, are scarce. In this case-control study, the associations of serum levels of PAHs with the risk of premature ovarian failure (POF) and reproductive hormones in Chinese women were investigated, with recruiting 157 POF patients and 217 healthy women. The serum levels of 12 types of PAHs, as well as reproductive hormones, including follicle-stimulating hormone, luteinizing hormone and anti-mullerian hormone, were determined. In the logistic regression models, most individual PAH congeners showed significantly positive correlations with the risk of POF (p < 0.05), except for fluorine and pyrene. Benzo(a)pyrene (BaP), as the most carcinogenic PAH congener, was observed to be significantly positively associated with the risk of POF. After adjustment for age, body mass index, educational levels and household income, per one-unit increase in the log-transformed BaP concentration was significantly correlated with 2.191-fold increased risk of POF (OR = 2.191, 95%CI: 1.634-2.938, p < 0.05). To the best of our knowledge, this is the first study to report an association between internal exposure levels of PAHs and the increased risk of POF in women.
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Affiliation(s)
- Xiaoqing Ye
- College of Medical Technology, Zhejiang Chinese Medical University, Hangzhou 310053, China; MOE Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Wuye Pan
- MOE Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Chunming Li
- Women's Reproductive Health Key Laboratory of Zhejiang Province, Women's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China
| | - Xiaochen Ma
- MOE Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Shanshan Yin
- MOE Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Jianhong Zhou
- Women's Reproductive Health Key Laboratory of Zhejiang Province, Women's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China
| | - Jing Liu
- MOE Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; Research Center for Air Pollution and Health, Zhejiang University, Hangzhou 310058, China.
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11
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Gioacchini G, Notarstefano V, Sereni E, Zacà C, Coticchio G, Giorgini E, Vaccari L, Carnevali O, Borini A. Does the molecular and metabolic profile of human granulosa cells correlate with oocyte fate? New insights by Fourier transform infrared microspectroscopy analysis. Mol Hum Reprod 2019; 24:521-532. [PMID: 30124927 DOI: 10.1093/molehr/gay035] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Accepted: 08/11/2018] [Indexed: 12/31/2022] Open
Abstract
STUDY QUESTION Does the molecular and metabolic profile of human mural granulosa cells (GCs) correlate with oocyte fate? SUMMARY ANSWER A close relation between the metabolic profile of mural GCs and the fate of the corresponding oocyte was revealed by the analysis of selected biomarkers defined by GC Fourier transform infrared microspectroscopy (FTIRM) analysis. WHAT IS KNOWN ALREADY In ART, oocyte selection is mainly based on the subjective observation of its morphological features; despite recent efforts, the success rate of this practice is still unsatisfactory. FTIRM is a well-established vibrational technique recently applied to evaluate oocytes quality in several experimental models, including human. STUDY DESIGN, SIZE, DURATION GCs retrieved from single-follicle aspirates were obtained with informed consent from 55 women undergoing controlled ovarian stimulation for IVF treatment. GCs were analysed by FTIRM to retrospectively correlate their spectral features with the fate of the companion oocytes. The study has been conducted between March 2016 and September 2017. PARTICIPANTS/MATERIALS, SETTING, METHODS Patients were selected according to the following inclusion criteria: age <40 years; non-smokers; no ovarian infertility diagnosis (only tubal, idiopathic and male infertility); regular ovulatory menstrual cycles (25-30 days) with FSH < 10 IU/I on Day 3 of the menstrual cycle; sperm sample with a total motility count after treatment ≥300.000; number of retrieved oocytes ≥8. Based on the clinical outcome of the corresponding oocyte, GCs were retrospectively classified into the following experimental groups: clinical pregnancy (CP), fertilization failure (FF), embryo development failure (EDF) and implantation failure (IF). All samples were analysed by the FTIRM technique. The spectral biomarker signature of different oocyte fates was derived by several feature selection procedures ('Leave-one-out' method on factorial discriminant analysis (FDA), variable characterization method and logistic regression method with the multinomial Logit model). ANOVA, permutational multivariate ANOVA, FDA and canonical analysis of principal co-ordinates statistical tools were also applied to validate the identified spectral biomarkers. MAIN RESULTS AND THE ROLE OF CHANCE In total, 284 GCs samples were retrieved and retrospectively classified as FF: (N = 92), EDF (N = 113), IF (N = 56) and CP (N = 23). From the spectral profiles of GCs belonging to CP, FF, EDF and IF experimental groups, 17 spectral biomarkers, were identified by several feature selection procedures (P < 0.0001). These biomarkers were then validated by applying multivariate tools, to evaluate their ability to segregate GCs samples into the four experimental groups. FDA showed a clear separation along the F1-axis (62.75% of discrimination) between GCs from oocytes able (CP, IF groups) or not (FF, EDF groups) to develop into embryos; the F2-axis (24.14% of discrimination) segregated the embryos that gave pregnancy (CP) from those that failed implantation (IF). The confusion matrix (total percentage of correctness = 80.25%) obtained from this analysis pinpointed that GCs from oocytes unable to develop into embryos (FF, EDF) were better characterized than those from oocytes able to give viable embryos (CP, IF). ANOVA (P < 0.05) analysis pinpointed that: each experimental group showed specific macromolecular traits, ascribable to different biological and metabolic characteristics of GCs; these metabolic features were likely associated with different oocytes fates, but not to patient characteristics, since from the same patient we obtained GCs with different metabolic profiles. LIMITATIONS, REASONS FOR CAUTION The study is based on a small sample size but provides proof of concept that the GCs' metabolic profile is associated with the companion oocyte fate. The generated model should be further tested on a larger cohort of patients, classified in a similar manner, to assess the potential predictive value of this approach. Ultimately, validity of the proposed approach should be tested in a RCT. WIDER IMPLICATIONS OF THE FINDINGS For the first time, the FTIRM analysis of human GCs has demonstrated an approach to better understand the molecular crosstalk between follicular cells and oocytes and has identified potential spectral biomarkers for improving human IVF success rate. STUDY FUNDING/COMPETING INTEREST(S) The study was funded by GFI 2014 grant. The authors declare that there is no conflict of interest.
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Affiliation(s)
- Giorgia Gioacchini
- Department of Life and Environmental Sciences, Polytechnic University of Marche, Via Brecce Bianche, Ancona, Italy
| | - Valentina Notarstefano
- Department of Life and Environmental Sciences, Polytechnic University of Marche, Via Brecce Bianche, Ancona, Italy
| | - Elena Sereni
- 9.baby, Family and Fertility Center, Via Dante, 15, Bologna, Italy
| | - Carlotta Zacà
- 9.baby, Family and Fertility Center, Via Dante, 15, Bologna, Italy
| | | | - Elisabetta Giorgini
- Department of Life and Environmental Sciences, Polytechnic University of Marche, Via Brecce Bianche, Ancona, Italy
| | - Lisa Vaccari
- SISSI Beamline, Elettra-Sincrotrone Trieste S.C.p.A., S.S.14, Km 163.5, Basovizza, Trieste, Italy
| | - Oliana Carnevali
- Department of Life and Environmental Sciences, Polytechnic University of Marche, Via Brecce Bianche, Ancona, Italy
| | - Andrea Borini
- 9.baby, Family and Fertility Center, Via Dante, 15, Bologna, Italy
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Beylot C. Vieillissement cutané – Vieillissement facial global : orientation thérapeutique. Ann Dermatol Venereol 2019; 146:41-74. [DOI: 10.1016/j.annder.2018.10.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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13
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Yi T, Liu M, Li X, Liu X, Ding Y, He J, Xu H, Gao R, Mu X, Geng Y, Wang Y, Chen X. Benzo(a)pyrene inhibits endometrial cell apoptosis in early pregnant mice via the WNT5A pathway. J Cell Physiol 2018; 234:11119-11129. [PMID: 30443902 DOI: 10.1002/jcp.27762] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Accepted: 10/29/2018] [Indexed: 12/14/2022]
Abstract
Benzo(a)pyrene (BaP) is an endocrine-disrupting pollutant present in various aspects of daily life, and studies have demonstrated that BaP exerts reproductive toxicity. We previously showed that BaP damages endometrial morphology and decreases the number of implantation sites in early pregnant mice, but the mechanisms underlying these effects remain unclear. The endometrial function is crucial for implantation, which is associated with endometrial cell apoptosis. In this study, we focused on the effect of BaP on endometrial cell apoptosis and the role of WNT signaling during this process. Pregnant mice were gavaged with corn oil (control group) or 0.2 mg·kg-1 ·day -1 BaP (treatment group) from Days 1 to 6 of pregnancy. BaP impaired endometrial function by decreasing the expression of HOXA10 and BMP2, two markers of receptivity and decidualization. WNT5A and β-catenin were activated in the BaP group. BaP affected the expression of apoptosis-related proteins and inhibited the apoptosis of endometrial stromal cells. In vitro, human endometrial stromal cells (HESCs) were treated with different concentrations of BaP (dimethyl sulfoxide (DMSO); 5, 10 µM). WNT5A and β-catenin were also upregulated in the BaP treatment group. HESC apoptosis was restrained by BaP. Inhibiting WNT5A by SFRP5 partially restored the effect of BaP on apoptosis. In summary, these results suggested that BaP exposure during early pregnancy activates WNT5A/β-catenin signaling pathway, which inhibits the endometrial cell apoptosis and potentially destroys endometrial function.
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Affiliation(s)
- Ting Yi
- Laboratory of Reproductive Biology, School of Public Health and Management, Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
| | - Min Liu
- Laboratory of Reproductive Biology, School of Public Health and Management, Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
| | - Xueyan Li
- Laboratory of Reproductive Biology, School of Public Health and Management, Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
| | - Xueqing Liu
- Laboratory of Reproductive Biology, School of Public Health and Management, Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
| | - Yubin Ding
- Laboratory of Reproductive Biology, School of Public Health and Management, Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
| | - Junlin He
- Laboratory of Reproductive Biology, School of Public Health and Management, Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
| | - Hanting Xu
- Laboratory of Reproductive Biology, School of Public Health and Management, Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
| | - Rufei Gao
- Laboratory of Reproductive Biology, School of Public Health and Management, Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
| | - Xinyi Mu
- Laboratory of Reproductive Biology, School of Public Health and Management, Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
| | - Yanqing Geng
- Laboratory of Reproductive Biology, School of Public Health and Management, Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
| | - Yingxiong Wang
- Laboratory of Reproductive Biology, School of Public Health and Management, Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
| | - Xuemei Chen
- Laboratory of Reproductive Biology, School of Public Health and Management, Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
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14
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Effects of cigarette smoke extracts on apoptosis and oxidative stress in two models of ovarian cancer in vitro. Toxicol In Vitro 2018; 52:161-169. [DOI: 10.1016/j.tiv.2018.06.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 05/08/2018] [Accepted: 06/07/2018] [Indexed: 02/06/2023]
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15
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Rhon-Calderón EA, Toro CA, Lomniczi A, Galarza RA, Faletti AG. Changes in the expression of genes involved in the ovarian function of rats caused by daily exposure to 3-methylcholanthrene and their prevention by α-naphthoflavone. Arch Toxicol 2017; 92:907-919. [PMID: 29094188 DOI: 10.1007/s00204-017-2096-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Accepted: 10/17/2017] [Indexed: 12/12/2022]
Abstract
Daily exposure to low doses of 3-methylcholanthrene (3MC) during the pubertal period in rats disrupts both follicular growth and ovulation. Thus, to provide new insights into the toxicity mechanism of 3MC in the ovary, here we investigated the effect of daily exposure to 3MC on selected ovarian genes, the role of the aryl hydrocarbon receptor (AhR) and the level of epigenetic remodeling of histone post-transcriptional modifications. Immature rats were daily injected with 3MC (0.1 or 1 mg/kg) and mRNA expression of genes involved in different ovarian processes were evaluated. Of the 29 genes studied, 18 were up-regulated, five were down-regulated and six were not altered. To assess whether AhR was involved in these changes, we used the chromatin immunoprecipitation assay. 3MC increased AhR binding to promoter regions of genes involved in Notch signaling (Hes1, Jag1), activation of primordial follicles (Cdk2), cell adhesion (Icam1), stress and tumor progression (Dnajb6), apoptosis (Bax, Caspase-9) and expression of growth and transcription factors (Igf2, Sp1). Studying the trimethylation and acetylation of histone 3 (H3K4me3 and H3K9Ac, respectively) of these genes, we found that 3MC increased H3K4me3 in Cyp1a1, Jag1, Dnajb6, Igf2, Notch2, Adamts1, Bax and Caspase-9, and H3K9Ac in Cyp1a1, Jag1, Cdk2, Dnajb6, Igf2, Icam1, and Sp1. Co-treatment with α-naphthoflavone (αNF), a specific antagonist of AhR, prevented almost every 3MC-induced changes. Despite the low dose used in these experiments, daily exposure to 3MC induced changes in both gene expression and epigenomic remodeling, which may lead to premature ovarian failure.
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Affiliation(s)
- Eric Alejandro Rhon-Calderón
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Centro de Estudios Farmacológicos y Botánicos (CEFYBO), Facultad de Medicina, Paraguay 2155, 16º P, (C1121ABG) Ciudad Autónoma de Buenos Aires, Buenos Aires, Argentina
| | - Carlos Alejandro Toro
- Primate Genetics Section, Division of Neuroscience, Oregon National Primate Research Center, OHSU, Beaverton, OR, 97006, USA
| | - Alejandro Lomniczi
- Primate Genetics Section, Division of Neuroscience, Oregon National Primate Research Center, OHSU, Beaverton, OR, 97006, USA
| | - Rocío Alejandra Galarza
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Centro de Estudios Farmacológicos y Botánicos (CEFYBO), Facultad de Medicina, Paraguay 2155, 16º P, (C1121ABG) Ciudad Autónoma de Buenos Aires, Buenos Aires, Argentina
- Universidad de Buenos Aires, Facultad de Medicina, Dto. de Toxicología y Farmacología, Buenos Aires, Argentina
| | - Alicia Graciela Faletti
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Centro de Estudios Farmacológicos y Botánicos (CEFYBO), Facultad de Medicina, Paraguay 2155, 16º P, (C1121ABG) Ciudad Autónoma de Buenos Aires, Buenos Aires, Argentina.
- Universidad de Buenos Aires, Facultad de Medicina, Dto. de Toxicología y Farmacología, Buenos Aires, Argentina.
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Kim SM, Lee HM, Hwang KA, Choi KC. Benzo(a)pyrene induced cell cycle arrest and apoptosis in human choriocarcinoma cancer cells through reactive oxygen species-induced endoplasmic reticulum-stress pathway. Food Chem Toxicol 2017; 107:339-348. [DOI: 10.1016/j.fct.2017.06.048] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Revised: 06/28/2017] [Accepted: 06/30/2017] [Indexed: 11/25/2022]
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17
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Yao C, Foster WG, Sadeu JC, Siddique S, Zhu J, Feng YL. Screening for DNA adducts in ovarian follicles exposed to benzo[a]pyrene and cigarette smoke condensate using liquid chromatography-tandem mass spectrometry. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 575:742-749. [PMID: 27665503 DOI: 10.1016/j.scitotenv.2016.09.122] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Revised: 08/14/2016] [Accepted: 09/15/2016] [Indexed: 06/06/2023]
Abstract
A rapid mass spectrometric method was applied to non-targeted screening of DNA adducts in follicular cells (granulosa cells and theca cells) from isolated ovarian follicles that were exposed in-vitro to benzo[a]pyrene (B[a]P) and cigarette smoke condensate (CSC) for 13days of culture. The method employed a constant neutral loss (CNL) scan to identify chromatographic peaks associated to a neutral loss of deoxyribose moiety of DNA nucleosides. These peaks were subsequently analyzed by a product ion scan in tandem mass spectrometry to elucidate structures of DNA adducts. The identification was further confirmed through synthesis of proposed DNA adducts where possible. Three DNA adducts, benzo[a]pyrene-7,8-dihydrodiol-9,10-epoxide-dG (BPDE-dG), phenanthrene 1,2-quinone-dG (PheQ-dG) and B[a]P-7,8-quinone-dG (BPQ-dG) were identified in the follicular cells from isolated ovarian follicles exposed to B[a]P. Along with these three, an additional DNA adduct, 4-aminobiphenyl-dG, was identified in the follicular cells from isolated ovarian follicles exposed to CSC. The amounts of the identified DNA adducts in follicular cells increased in a dose-dependent manner for both B[a]P (0, 1.5, 5, 15 and 45ng/mL) and CSC (0, 30, 60, 90 and 130μg/mL). The results revealed that B[a]P-related DNA adducts were the major adducts in the ovarian follicular cells exposed to CSC. The results also revealed that two oxidative biomarkers, 8-hydroxy-2-deoxy guanosine (8-OH-dG) and 8-isoprostane (8-IsoP), in both B[a]P-exposed and CSC-exposed ovarian follicles had strong correlations with the three DNA adducts, BPDE-dG, BPQ-dG and PheQ-dG. A pathway to describe formation of DNA adducts was proposed based on the DNA adducts observed.
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Affiliation(s)
- Chunhe Yao
- Exposure and Biomonitoring Division, Environmental Health Science and Research Bureau, Healthy Environments and Consumer Safety Branch, Health Canada, 50 Colombine Driveway, AL: 0800C, Ottawa, Ontario K1A 0K9, Canada
| | - Warren G Foster
- Department of Obstetrics & Gynecology, Michael G. DeGroote School of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Jean C Sadeu
- Department of Obstetrics & Gynecology, Michael G. DeGroote School of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Shabana Siddique
- Exposure and Biomonitoring Division, Environmental Health Science and Research Bureau, Healthy Environments and Consumer Safety Branch, Health Canada, 50 Colombine Driveway, AL: 0800C, Ottawa, Ontario K1A 0K9, Canada
| | - Jiping Zhu
- Exposure and Biomonitoring Division, Environmental Health Science and Research Bureau, Healthy Environments and Consumer Safety Branch, Health Canada, 50 Colombine Driveway, AL: 0800C, Ottawa, Ontario K1A 0K9, Canada
| | - Yong-Lai Feng
- Exposure and Biomonitoring Division, Environmental Health Science and Research Bureau, Healthy Environments and Consumer Safety Branch, Health Canada, 50 Colombine Driveway, AL: 0800C, Ottawa, Ontario K1A 0K9, Canada.
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18
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Ranjit S, Midde NM, Sinha N, Patters BJ, Rahman MA, Cory TJ, Rao PSS, Kumar S. Effect of Polyaryl Hydrocarbons on Cytotoxicity in Monocytic Cells: Potential Role of Cytochromes P450 and Oxidative Stress Pathways. PLoS One 2016; 11:e0163827. [PMID: 27684561 PMCID: PMC5042547 DOI: 10.1371/journal.pone.0163827] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Accepted: 09/14/2016] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Benzo(a)pyrene (BaP), naphthalene (NPh), phenanthrene (Phe), benzo(a)antharacene (BeA), and benzo(b)fluoranthene (BeF) are known carcinogenic polyaryl hydrocarbons (PAHs) present in cigarette smoke. This study was designed to examine the relative effect of these constituents on the cytotoxicity of monocytic cells and the possible mechanism of PAH-mediated cytotoxicity. METHODS We examined the acute (6-24 hours) and chronic (7 days) effects of these PAHs on the expression of cytochromes P450 (CYPs), oxidative stress, and cytotoxicity. The treated cells were examined for mRNA and protein levels of CYPs (1A1 and 3A4) and antioxidants enzymes (AOEs) superoxide dismutase-1 (SOD1) and catalase. Further, we assessed the levels of reactive oxygen species (ROS), caspase-3 cleavage activity, and cell viability. We performed these experiments in U937 and/or primary monocytic cells. RESULTS Of the five PAHs tested, after chronic treatment only BaP (100 nM) showed a significant increase in the expression of CYP1A1, AOEs (SOD1 and catalase), ROS generation, caspase-3 cleavage activity, and cytotoxicity. However, acute treatment with BaP showed only an increase in the mRNA expression of CYP1A1. CONCLUSIONS These results suggest that of the five PAHs tested, BaP is the major contributor to the toxic effect of PAHs in monocytic cells, which is likely to occur through CYP and oxidative stress pathways.
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Affiliation(s)
- Sabina Ranjit
- Department of Pharmaceutical Sciences, University of Tennessee Health Science Center, Memphis, TN, 38163, United States of America
| | - Narasimha M. Midde
- Department of Pharmaceutical Sciences, University of Tennessee Health Science Center, Memphis, TN, 38163, United States of America
| | - Namita Sinha
- Department of Pharmaceutical Sciences, University of Tennessee Health Science Center, Memphis, TN, 38163, United States of America
| | - Benjamin J. Patters
- Department of Pharmaceutical Sciences, University of Tennessee Health Science Center, Memphis, TN, 38163, United States of America
| | - Mohammad A. Rahman
- Department of Pharmaceutical Sciences, University of Tennessee Health Science Center, Memphis, TN, 38163, United States of America
| | - Theodore J. Cory
- Department of Clinical Pharmacy, University of Tennessee Health Science Center, Memphis, TN, 38163, United States of America
| | - P. S. S. Rao
- Department of Pharmaceutical Sciences, The University of Findley, 1000 N. Main Street, Findlay, OH, 45840, United States of America
| | - Santosh Kumar
- Department of Pharmaceutical Sciences, University of Tennessee Health Science Center, Memphis, TN, 38163, United States of America
- * E-mail:
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Furlong H, Wessels J, Guerra M, Stämpfli M, Foster W. Hydroxychloroquine attenuates cigarette smoke induced autophagic signaling in the mouse ovary. Reprod Toxicol 2016; 61:105-13. [DOI: 10.1016/j.reprotox.2016.03.044] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Revised: 03/09/2016] [Accepted: 03/28/2016] [Indexed: 10/25/2022]
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Hunt PA, Sathyanarayana S, Fowler PA, Trasande L. Female Reproductive Disorders, Diseases, and Costs of Exposure to Endocrine Disrupting Chemicals in the European Union. J Clin Endocrinol Metab 2016; 101:1562-70. [PMID: 27003299 PMCID: PMC4880176 DOI: 10.1210/jc.2015-2873] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
CONTEXT A growing body of evidence suggests that endocrine-disrupting chemicals (EDCs) contribute to female reproductive disorders. OBJECTIVE To calculate the associated combined health care and economic costs attributable to specific EDC exposures within the European Union (EU). DESIGN An expert panel evaluated evidence for probability of causation using the Intergovernmental Panel on Climate Change weight-of-evidence characterization. Exposure-response relationships and reference levels were evaluated, and biomarker data were organized from carefully identified studies from the peer-reviewed literature to represent European exposure and approximate burden of disease as it occurred in 2010. Cost-of-illness estimation used multiple peer-reviewed sources. SETTING, PATIENTS AND PARTICIPANTS AND INTERVENTION Cost estimation was carried out from a societal perspective, ie, including direct costs (eg, treatment costs) and indirect costs such as productivity loss. RESULTS The most robust EDC-related data for female reproductive disorders exist for 1) diphenyldichloroethene-attributable fibroids and 2) phthalate-attributable endometriosis in Europe. In both cases, the strength of epidemiological evidence was rated as low and the toxicological evidence as moderate, with an assigned probability of causation of 20%–39%. Across the EU, attributable cases were estimated to be 56 700 and 145 000 women, respectively, with total combined economic and health care costs potentially reaching €163 million and €1.25 billion. CONCLUSIONS EDCs (diphenyldichloroethene and phthalates) may contribute substantially to the most common reproductive disorders in women, endometriosis and fibroids, costing nearly €1.5 billion annually. These estimates represent only EDCs for which there were sufficient epidemiologic studies and those with the highest probability of causation. These public health costs should be considered as the EU contemplates regulatory action on EDCs.
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Affiliation(s)
- Patricia A Hunt
- School of Molecular Biosciences (P.A.H.), Washington State University, Pullman, Washington 99164; Center for Child Health, Behavior and Development (S.S.), Seattle Children's Research Institute, Seattle, Washington 98145; Department of Pediatrics (S.S.), University of Washington, Seattle, Washington 98145; Division of Applied Medicine (P.A.F.), Institute of Medical Sciences, University of Aberdeen, Aberdeen, AB25 2ZD, Scotland, United Kingdom; New York University (NYU) School of Medicine (L.T.), New York, New York 10016; NYU Wagner School of Public Service (L.T.), New York, New York 10012; and Education and Human Development (L.T.), Department of Nutrition, Food and Public Health, NYU Steinhardt School of Culture New York, New York, New York 10013; NYU College of Global Public Health (L.T.), New York University, New York, New York 10003
| | - Sheela Sathyanarayana
- School of Molecular Biosciences (P.A.H.), Washington State University, Pullman, Washington 99164; Center for Child Health, Behavior and Development (S.S.), Seattle Children's Research Institute, Seattle, Washington 98145; Department of Pediatrics (S.S.), University of Washington, Seattle, Washington 98145; Division of Applied Medicine (P.A.F.), Institute of Medical Sciences, University of Aberdeen, Aberdeen, AB25 2ZD, Scotland, United Kingdom; New York University (NYU) School of Medicine (L.T.), New York, New York 10016; NYU Wagner School of Public Service (L.T.), New York, New York 10012; and Education and Human Development (L.T.), Department of Nutrition, Food and Public Health, NYU Steinhardt School of Culture New York, New York, New York 10013; NYU College of Global Public Health (L.T.), New York University, New York, New York 10003
| | - Paul A Fowler
- School of Molecular Biosciences (P.A.H.), Washington State University, Pullman, Washington 99164; Center for Child Health, Behavior and Development (S.S.), Seattle Children's Research Institute, Seattle, Washington 98145; Department of Pediatrics (S.S.), University of Washington, Seattle, Washington 98145; Division of Applied Medicine (P.A.F.), Institute of Medical Sciences, University of Aberdeen, Aberdeen, AB25 2ZD, Scotland, United Kingdom; New York University (NYU) School of Medicine (L.T.), New York, New York 10016; NYU Wagner School of Public Service (L.T.), New York, New York 10012; and Education and Human Development (L.T.), Department of Nutrition, Food and Public Health, NYU Steinhardt School of Culture New York, New York, New York 10013; NYU College of Global Public Health (L.T.), New York University, New York, New York 10003
| | - Leonardo Trasande
- School of Molecular Biosciences (P.A.H.), Washington State University, Pullman, Washington 99164; Center for Child Health, Behavior and Development (S.S.), Seattle Children's Research Institute, Seattle, Washington 98145; Department of Pediatrics (S.S.), University of Washington, Seattle, Washington 98145; Division of Applied Medicine (P.A.F.), Institute of Medical Sciences, University of Aberdeen, Aberdeen, AB25 2ZD, Scotland, United Kingdom; New York University (NYU) School of Medicine (L.T.), New York, New York 10016; NYU Wagner School of Public Service (L.T.), New York, New York 10012; and Education and Human Development (L.T.), Department of Nutrition, Food and Public Health, NYU Steinhardt School of Culture New York, New York, New York 10013; NYU College of Global Public Health (L.T.), New York University, New York, New York 10003
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Haase M, Fitze G. HSP90AB1: Helping the good and the bad. Gene 2015; 575:171-86. [PMID: 26358502 DOI: 10.1016/j.gene.2015.08.063] [Citation(s) in RCA: 88] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Revised: 07/30/2015] [Accepted: 08/27/2015] [Indexed: 12/11/2022]
Affiliation(s)
- Michael Haase
- Department of Pediatric Surgery, University Hospital Carl Gustav Carus, TU Dresden, Fetscherstrasse 74, 01307 Dresden, Germany.
| | - Guido Fitze
- Department of Pediatric Surgery, University Hospital Carl Gustav Carus, TU Dresden, Fetscherstrasse 74, 01307 Dresden, Germany
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Zhan S, Zhang X, Cao S, Huang J. Benzo(a)pyrene disrupts mouse preimplantation embryo development. Fertil Steril 2015; 103:815-25. [DOI: 10.1016/j.fertnstert.2014.11.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Revised: 10/17/2014] [Accepted: 11/10/2014] [Indexed: 12/23/2022]
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Camlin NJ, McLaughlin EA, Holt JE. Through the smoke: use of in vivo and in vitro cigarette smoking models to elucidate its effect on female fertility. Toxicol Appl Pharmacol 2014; 281:266-75. [PMID: 25448442 DOI: 10.1016/j.taap.2014.10.010] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Revised: 10/02/2014] [Accepted: 10/15/2014] [Indexed: 01/15/2023]
Abstract
A finite number of oocytes are established within the mammalian ovary prior to birth to form a precious ovarian reserve. Damage to this limited pool of gametes by environmental factors such as cigarette smoke and its constituents therefore represents a significant risk to a woman's reproductive capacity. Although evidence from human studies to date implicates a detrimental effect of cigarette smoking on female fertility, these retrospective studies are limited and present conflicting results. In an effort to more clearly understand the effect of cigarette smoke, and its chemical constituents, on female fertility, a variety of in vivo and in vitro animal models have been developed. This article represents a systematic review of the literature regarding four of experimental model types: 1) direct exposure of ovarian cells and follicles to smoking constituents' in vitro, 2) direct exposure of whole ovarian tissue with smoking constituents in vitro, 3) whole body exposure of animals to smoking constituents and 4) whole body exposure of animals to cigarette smoke. We summarise key findings and highlight the strengths and weaknesses of each model system, and link these to the molecular mechanisms identified in smoke-induced fertility changes.
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Affiliation(s)
- Nicole J Camlin
- School of Environment and Life Sciences, University of Newcastle, Callaghan, NSW 2308, Australia
| | - Eileen A McLaughlin
- School of Environment and Life Sciences, University of Newcastle, Callaghan, NSW 2308, Australia.
| | - Janet E Holt
- School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, NSW 2308, Australia
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Sobinoff AP, Sutherland JM, Beckett EL, Stanger SJ, Johnson R, Jarnicki AG, McCluskey A, St John JC, Hansbro PM, McLaughlin EA. Damaging legacy: maternal cigarette smoking has long-term consequences for male offspring fertility. Hum Reprod 2014; 29:2719-35. [PMID: 25269568 DOI: 10.1093/humrep/deu235] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
STUDY QUESTION What are the effects on fertility of cigarette smoke-induced toxicity on male offspring exposed during the gestational/weaning period? SUMMARY ANSWER Maternal cigarette smoke exposure during the gestational/weaning period causes long-term defects in male offspring fertility. WHAT IS KNOWN ALREADY Cigarette smoke is a well-known reproductive toxicant which is particularly harmful to both fetal and neonatal germ cells. However, recent studies suggest a significant portion of young mothers in the developed world still smoke during pregnancy. In the context of male reproductive health, our understanding of the effects of in utero exposure on offspring fertility is limited. STUDY DESIGN, SIZE, DURATION In this study, 27 C57BL/6 5-week-old female mice were exposed via the nose-only to cigarette smoke (treatment) or 27 were exposed to room air (control) for 6 weeks before being housed with stud males to produce litters. In the treatment group, smoke exposure continued throughout mating, pregnancy and lactation until weaning of pups at 21 days post birth. Male offspring were examined at post-natal days 3, 6, 12, 21 and 98 (adult). PARTICIPANTS/MATERIALS, SETTING, METHODS Approximately 108 maternal smoke-exposed C57BL/6 offspring and controls were examined. Spermatogenesis was examined using testicular histology and apoptosis/DNA damage was assessed using caspase immunohistochemistry and TUNEL. Sertoli cell morphology and fluctuations in the spermatogonial stem cell population were also examined using immunohistochemistry. Microarray and QPCR analysis were performed on adult testes to examine specific long-term transcriptomic alteration as a consequence of maternal smoke exposure. Sperm counts and motility, zona/oolemma binding assays, COMET analysis and mitochondrial genomic sequencing were also performed on spermatozoa obtained from adult treated and control mice. Fertility trials using exposed adult male offspring were also performed. MAIN RESULTS AND THE ROLE OF CHANCE Maternal cigarette smoke exposure caused increased gonocyte and meiotic spermatocyte apoptosis (P < 0.01) as well as germ cell depletion in the seminiferous tubules of neonatal and juvenile offspring. Aberrant testicular development characterized by abnormal Sertoli and germ cell organization, a depleted spermatogonial stem cell population (P < 0.01), atrophic seminiferous tubules and increased germ cell DNA damage (P < 0.01) persisted in adult offspring 11 weeks after exposure. Microarray analysis of adult offspring testes associated these defects with meiotic germ cell development, sex hormone metabolism, oxidative stress and Sertoli cell signalling. Next generation sequencing also revealed a high mitochondrial DNA mutational load in the testes of adult offspring (P < 0.01). Adult maternal smoke-exposed offspring also had reduced sperm counts with spermatozoa exhibiting morphological abnormalities (P < 0.01), affecting motility and fertilization potential. Odf2, a spermatozoa flagellum component required for coordinated ciliary beating, was also significantly down-regulated (P < 0.01) in maternal smoke-exposed adult offspring, with aberrant localization along the spermatozoa flagellum. Adult maternal smoke-exposed offspring took significantly longer to impregnate control females and had a slight but significant (P < 0.01) reduction in litter size. LIMITATIONS, REASONS FOR CAUTION This study examined only one species (mouse) using a smoking model which only simulates human cigarette smoke exposure. WIDER IMPLICATIONS OF THE FINDINGS This study represents the first comprehensive animal model of maternal smoking on male offspring reproductive function, suggesting that exposure during the gestational/weaning period causes long-term defects in male offspring fertility. This is due to a compromised spermatogonial stem cell population resulting from gonocyte apoptosis and impaired spermatogenic development. This results in significant germ cell damage and Sertoli cell dysfunction, impacting germ cell number, tubule organization, DNA damage and spermatozoa in adult offspring. This study strengthens the current literature suggesting that maternal exposure impairs male offspring fertility, which is currently debated due to conflicting studies. STUDY FUNDING/COMPETING INTERESTS This study was funded by the Australian Research Council, Hunter Medical Research Institute, National Health and Medical Research Council of Australia and the Newcastle Permanent Building Society Charitable Trust. The authors declare no conflict of interest.
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Affiliation(s)
- A P Sobinoff
- Reproductive Science Group, School of Environmental & Life Sciences, University of Newcastle, Callaghan, NSW 2308, Australia Priority Research Centre for Chemical Biology, University of Newcastle, Callaghan, NSW 2308, Australia
| | - J M Sutherland
- Reproductive Science Group, School of Environmental & Life Sciences, University of Newcastle, Callaghan, NSW 2308, Australia Priority Research Centre for Chemical Biology, University of Newcastle, Callaghan, NSW 2308, Australia
| | - E L Beckett
- Centre for Asthma and Respiratory Disease, University of Newcastle and Hunter Medical Research Institute, Newcastle, Callaghan, NSW 2308, Australia
| | - S J Stanger
- Reproductive Science Group, School of Environmental & Life Sciences, University of Newcastle, Callaghan, NSW 2308, Australia Priority Research Centre for Chemical Biology, University of Newcastle, Callaghan, NSW 2308, Australia
| | - R Johnson
- Centre for Asthma and Respiratory Disease, University of Newcastle and Hunter Medical Research Institute, Newcastle, Callaghan, NSW 2308, Australia
| | - A G Jarnicki
- Centre for Asthma and Respiratory Disease, University of Newcastle and Hunter Medical Research Institute, Newcastle, Callaghan, NSW 2308, Australia
| | - A McCluskey
- Priority Research Centre for Chemical Biology, University of Newcastle, Callaghan, NSW 2308, Australia
| | - J C St John
- Centre for Genetic Diseases, MIMR-PHI Institute of Medical Research, Monash University, 27-31 Wright Street, Clayton Vic 3168, Australia
| | - P M Hansbro
- Centre for Asthma and Respiratory Disease, University of Newcastle and Hunter Medical Research Institute, Newcastle, Callaghan, NSW 2308, Australia
| | - E A McLaughlin
- Reproductive Science Group, School of Environmental & Life Sciences, University of Newcastle, Callaghan, NSW 2308, Australia Priority Research Centre for Chemical Biology, University of Newcastle, Callaghan, NSW 2308, Australia Monash Medical Centre, Monash Institute of Medical Research, Clayton, VIC 3168, Australia
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Einaudi L, Courbiere B, Tassistro V, Prevot C, Sari-Minodier I, Orsiere T, Perrin J. In vivo exposure to benzo(a)pyrene induces significant DNA damage in mouse oocytes and cumulus cells. Hum Reprod 2013; 29:548-54. [PMID: 24327538 DOI: 10.1093/humrep/det439] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
STUDY QUESTION Does in vivo exposure to benzo(a)pyrene (BaP) induce DNA damage in oocytes and cumulus cells (CCs) in mice? SUMMARY ANSWER Significant increases in DNA strand breaks in oocytes and CCs and in BaP-induced DNA adducts in CCs were detected in exposed mice compared with controls. WHAT IS KNOWN ALREADY BaP has well-known mutagenic and carcinogenic effects on somatic cells, and is also registered as potential reproductive toxicant by several environmental protection agencies. It has been shown to cause a significant increase in DNA adducts in ovarian tissues; however, to our knowledge, the genotoxic effects of BaP on oocytes and CCs have not been studied to date. STUDY DESIGN, SIZE, DURATION Female CD1 mice were exposed to BaP via the oral administration of a single dose of 13 mg/kg body weight (bw); matched controls were exposed to the vehicle only (soya oil). A total of 15 groups of 6 mice (exposed or controls) were sacrificed 2, 4, 6, 15 or 22 days after BaP exposure, and after collection of oviducts, the oocyte-CC complexes (COC) were released. PARTICIPANTS/MATERIALS, SETTING, METHODS The alkaline comet assay was used to quantify the DNA breaks in oocytes and CCs; DNA damage was expressed as the Olive Tail Moment (OTM). Immunofluorescent staining was used to quantify BaP-induced DNA adducts in CCs. Fluorescence was expressed as the average grey value (AGVA; arbitrary units). The differences between the exposed and control groups were assessed using analysis of variance (ANOVA) and the non-parametric Mann-Whitney test. MAIN RESULTS AND THE ROLE OF CHANCE Higher levels of DNA damage were observed in the oocytes and CCs of BaP-exposed mice than in those of vehicle controls. Significant increases in OTM (mean ± SE) were detected in (i) oocytes from females exposed for 4 (10.5 ± 0.9 versus 3.1 ± 0.4, P < 0.0001) or 6 days before collection (15.6 ± 2.0 versus 3.6 ± 0.9, P < 0.0001) and (ii) CCs from females exposed 2 (6.4 ± 0.6 versus 2.1 ± 0.2, P < 0.0001), 4 (7.8 ± 0.4 versus 2.4 ± 0.1, P < 0.0001) or 6 days before collection (7.3 ± 0.3 versus 3.2 ± 0.5, P < 0.0001) compared with controls. A significant increase in benzo(a)pyrene-7,8-9,10 diol epoxide (BPDE)-DNA adducts and higher AGVA (mean ± SE) scores were observed in CCs from females exposed 2 (6.1 ± 0.3 versus 3.6 ± 0.5, P < 0.0001), 4 (7.5 ± 0.1 versus 3.4 ± 0.1, P < 0.0001) or 6 days before collection (11.6 ± 0.4 versus 3.7 ± 0.1, P < 0.0001) compared with control mice. LIMITATIONS, REASONS FOR CAUTION Mice were given one treatment via the oral route because this dose and mode of administration have been shown to induce detectable BPDE-DNA adduct levels in mouse organs and sperm cells. Additional data are needed to assess DNA damage in oocytes and CCs after chronic exposure to BaP in vivo. WIDER IMPLICATIONS OF THE FINDINGS To our knowledge, this is the first study examining the in vivo genotoxicity of BaP in oocytes and CCs. We observed significant DNA damage in the oocytes and CCs of mice after acute BaP exposure. BPDE-DNA adducts result directly from BaP metabolism while DNA breaks could result mainly from BPDE-DNA adduct excision and repair and/or through direct genotoxicity from increased reactive oxygen species. These results add new and important insights regarding the recently suggested toxicity of chronic BaP exposure in the ovary. STUDY FUNDING/COMPETING INTEREST(S) This work was supported by a grant (93-CPQ 2012-05) from the DIRRECTE, Provence Alpes Côte d'Azur, France. None of the authors have any conflict of interest to declare.
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Affiliation(s)
- L Einaudi
- Institut Méditerranéen de Biodiversité et d'Ecologie Marine et Continentale (IMBE) UMR CNRS 7263 - IRD 237, FR 3098 ECCOREV, Aix-Marseille Université (AMU), Campus Timone - Faculté de Médecine - Biogénotoxicologie, Santé Humaine et Environnement, 27, Boulevard Jean-Moulin, F-13385 Marseille Cedex 05, France
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