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Liao H, Tian W, Yao W, Guo Q, Wang Y, Li J, Qing D, Li Y, Deng T. DBP Exposure Affects Oocyte Fertilization Via Extracellular Vesicles-Derived miR-116-5p in Ovarian Granulosa Cells Through Downregulating FOXO3a Expression. Reprod Sci 2024:10.1007/s43032-024-01559-y. [PMID: 38858331 DOI: 10.1007/s43032-024-01559-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Accepted: 04/12/2024] [Indexed: 06/12/2024]
Abstract
Mono-butyl phthalate (MBP), the metabolite of dibutyl phthalate (DBP), is the most abundant phthalate metabolite found in Chinese women. Extracellular vesicles (EVs) are nanoscale lipid bilayer particles produced by extensive kinds of cells, serving a key role in intercellular communication. Extracellular vesicle miRNAs (EV-miRNAs) in follicular fluid (FF) have been evidenced to be associated with female reproductive health. The objective of this study was to investigate the associations of EV-miRNAs expressed profile with DBP exposure in FF of female participants and expose its potential mechanism in impaired oocyte development. Based on participants' FF MBP concentrations and fertilization status, we compared the miRNA expression between the FF-EVs of group A (high DBP exposure and impaired fertilization) and group B (low DBP exposure and normal fertilization). Compared with group B, miR-1246, miR-3679-5p, miR-423-5p, miR-5585-3p, miR-116-5p, miR-172-5p were upregulated, while miR-34b-3p was downregulated in group A. Target genes of the differently expressed miRNAs were predicted, and the functional analysis was performed. Furthermore, we exposed human ovarian granulosa tumor cell line (KGN) to MBP (4ug/L) to isolate the EVs from the culture medium and validated the expression levels of different miRNAs. We found that MBP exposure was significantly associated with increased levels of miR-116-5p (P = 0.01). In addition, we demonstrated that the most different miRNA, miR-116-5p regulated oocyte fertilization by inhibiting FOXO3a. Our findings suggested that EV-miRNAs in the FF might mediate MBP toxicity in oocytes.
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Affiliation(s)
- Hongmei Liao
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Wenqu Tian
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Wen Yao
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Qingchun Guo
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Yi Wang
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Juan Li
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Danyu Qing
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Yufeng Li
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Taoran Deng
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China.
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Chesnokov MS, Mamedova AR, Zhivotovsky B, Kopeina GS. A matter of new life and cell death: programmed cell death in the mammalian ovary. J Biomed Sci 2024; 31:31. [PMID: 38509545 PMCID: PMC10956231 DOI: 10.1186/s12929-024-01017-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Accepted: 02/27/2024] [Indexed: 03/22/2024] Open
Abstract
BACKGROUND The mammalian ovary is a unique organ that displays a distinctive feature of cyclic changes throughout the entire reproductive period. The estrous/menstrual cycles are associated with drastic functional and morphological rearrangements of ovarian tissue, including follicular development and degeneration, and the formation and subsequent atrophy of the corpus luteum. The flawless execution of these reiterative processes is impossible without the involvement of programmed cell death (PCD). MAIN TEXT PCD is crucial for efficient and careful clearance of excessive, depleted, or obsolete ovarian structures for ovarian cycling. Moreover, PCD facilitates selection of high-quality oocytes and formation of the ovarian reserve during embryonic and juvenile development. Disruption of PCD regulation can heavily impact the ovarian functions and is associated with various pathologies, from a moderate decrease in fertility to severe hormonal disturbance, complete loss of reproductive function, and tumorigenesis. This comprehensive review aims to provide updated information on the role of PCD in various processes occurring in normal and pathologic ovaries. Three major events of PCD in the ovary-progenitor germ cell depletion, follicular atresia, and corpus luteum degradation-are described, alongside the detailed information on molecular regulation of these processes, highlighting the contribution of apoptosis, autophagy, necroptosis, and ferroptosis. Ultimately, the current knowledge of PCD aberrations associated with pathologies, such as polycystic ovarian syndrome, premature ovarian insufficiency, and tumors of ovarian origin, is outlined. CONCLUSION PCD is an essential element in ovarian development, functions and pathologies. A thorough understanding of molecular mechanisms regulating PCD events is required for future advances in the diagnosis and management of various disorders of the ovary and the female reproductive system in general.
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Affiliation(s)
- Mikhail S Chesnokov
- Faculty of Medicine, MV Lomonosov Moscow State University, Moscow, Russia
- Centro Nacional de Investigaciones Oncológicas, Madrid, Spain
| | - Aygun R Mamedova
- Faculty of Medicine, MV Lomonosov Moscow State University, Moscow, Russia
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | - Boris Zhivotovsky
- Faculty of Medicine, MV Lomonosov Moscow State University, Moscow, Russia.
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia.
- Institute of Environmental Medicine, Karolinska Institute, Stockholm, Sweden.
| | - Gelina S Kopeina
- Faculty of Medicine, MV Lomonosov Moscow State University, Moscow, Russia.
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia.
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Paula VG, Vesentini G, Sinzato YK, Moraes-Souza RQ, Volpato GT, Damasceno DC. Intergenerational high-fat diet impairs ovarian follicular development in rodents: a systematic review and meta-analysis. Nutr Rev 2021; 80:889-903. [PMID: 34459492 DOI: 10.1093/nutrit/nuab049] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/09/2022] Open
Abstract
CONTEXT Excessive consumption of high-fat diets has increased in the population over time and is harmful to female fertility. OBJECTIVE To investigate and discuss the effects of a high-fat diet on ovarian follicles in rodents. DATA SOURCE A systematic literature search of PubMed, EMBASE, Web of Science, and SCOPUS was carried out. DATA EXTRACTION Study characteristics, including study design, population, intervention, outcome, and risk of bias were analyzed. DATA ANALYSIS Twenty-two articles were included in a systematic review. Given the availability of studies, a quantitative meta-analysis included 12 studies that were performed for outcomes. There was a decrease in primordial follicles in female rodents that received a high-fat diet compared with the standard diet group. The offspring of mothers exposed to a high-fat diet showed an increased number of cystic follicles and a decreased number of secondary follicles and antral follicles, compared with the control diet group. Therefore, these high-fat diet-induced follicular alterations might impair the fertility of dams and their female newborns. CONCLUSION The consumption of a high-fat diet causes damage to ovarian follicular development, and this commitment will persist in the next generation. SYSTEMATIC REVIEW REGISTRATION PROSPERO registration no. CRD42019133865.
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Affiliation(s)
- Verônyca G Paula
- V.G. Paula, G. Vesentini, Y.K. Sinzato, R.Q. Moraes-Souza, and D.C. Damasceno are with the Laboratory of Experimental Research on Gynecology and Obstetrics, Gynecology, Postgraduate Course on Tocogynecology, Botucatu Medical School, São Paulo State University (Unesp), Botucatu, São Paulo, Brazil. G.T. Volpato and R.Q. Moraes-Souza are with the Laboratory of System Physiology and Reproductive Toxicology, Institute of Biological and Health Sciences, Federal University of Mato Grosso (UFMT), Barra do Garças, Mato Grosso, Brazil
| | - Giovana Vesentini
- V.G. Paula, G. Vesentini, Y.K. Sinzato, R.Q. Moraes-Souza, and D.C. Damasceno are with the Laboratory of Experimental Research on Gynecology and Obstetrics, Gynecology, Postgraduate Course on Tocogynecology, Botucatu Medical School, São Paulo State University (Unesp), Botucatu, São Paulo, Brazil. G.T. Volpato and R.Q. Moraes-Souza are with the Laboratory of System Physiology and Reproductive Toxicology, Institute of Biological and Health Sciences, Federal University of Mato Grosso (UFMT), Barra do Garças, Mato Grosso, Brazil
| | - Yuri K Sinzato
- V.G. Paula, G. Vesentini, Y.K. Sinzato, R.Q. Moraes-Souza, and D.C. Damasceno are with the Laboratory of Experimental Research on Gynecology and Obstetrics, Gynecology, Postgraduate Course on Tocogynecology, Botucatu Medical School, São Paulo State University (Unesp), Botucatu, São Paulo, Brazil. G.T. Volpato and R.Q. Moraes-Souza are with the Laboratory of System Physiology and Reproductive Toxicology, Institute of Biological and Health Sciences, Federal University of Mato Grosso (UFMT), Barra do Garças, Mato Grosso, Brazil
| | - Rafaianne Q Moraes-Souza
- V.G. Paula, G. Vesentini, Y.K. Sinzato, R.Q. Moraes-Souza, and D.C. Damasceno are with the Laboratory of Experimental Research on Gynecology and Obstetrics, Gynecology, Postgraduate Course on Tocogynecology, Botucatu Medical School, São Paulo State University (Unesp), Botucatu, São Paulo, Brazil. G.T. Volpato and R.Q. Moraes-Souza are with the Laboratory of System Physiology and Reproductive Toxicology, Institute of Biological and Health Sciences, Federal University of Mato Grosso (UFMT), Barra do Garças, Mato Grosso, Brazil
| | - Gustavo T Volpato
- V.G. Paula, G. Vesentini, Y.K. Sinzato, R.Q. Moraes-Souza, and D.C. Damasceno are with the Laboratory of Experimental Research on Gynecology and Obstetrics, Gynecology, Postgraduate Course on Tocogynecology, Botucatu Medical School, São Paulo State University (Unesp), Botucatu, São Paulo, Brazil. G.T. Volpato and R.Q. Moraes-Souza are with the Laboratory of System Physiology and Reproductive Toxicology, Institute of Biological and Health Sciences, Federal University of Mato Grosso (UFMT), Barra do Garças, Mato Grosso, Brazil
| | - Débora C Damasceno
- V.G. Paula, G. Vesentini, Y.K. Sinzato, R.Q. Moraes-Souza, and D.C. Damasceno are with the Laboratory of Experimental Research on Gynecology and Obstetrics, Gynecology, Postgraduate Course on Tocogynecology, Botucatu Medical School, São Paulo State University (Unesp), Botucatu, São Paulo, Brazil. G.T. Volpato and R.Q. Moraes-Souza are with the Laboratory of System Physiology and Reproductive Toxicology, Institute of Biological and Health Sciences, Federal University of Mato Grosso (UFMT), Barra do Garças, Mato Grosso, Brazil
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Wang JJ, Ge W, Zhai QY, Liu JC, Sun XW, Liu WX, Li L, Lei CZ, Dyce PW, De Felici M, Shen W. Single-cell transcriptome landscape of ovarian cells during primordial follicle assembly in mice. PLoS Biol 2020; 18:e3001025. [PMID: 33351795 PMCID: PMC7787681 DOI: 10.1371/journal.pbio.3001025] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 01/06/2021] [Accepted: 12/03/2020] [Indexed: 02/06/2023] Open
Abstract
Primordial follicle assembly in the mouse occurs during perinatal ages and largely determines the ovarian reserve that will be available to support the reproductive life span. The development of primordial follicles is controlled by a complex network of interactions between oocytes and ovarian somatic cells that remain poorly understood. In the present research, using single-cell RNA sequencing performed over a time series on murine ovaries, coupled with several bioinformatics analyses, the complete dynamic genetic programs of germ and granulosa cells from E16.5 to postnatal day (PD) 3 were reported. Along with confirming the previously reported expression of genes by germ cells and granulosa cells, our analyses identified 5 distinct cell clusters associated with germ cells and 6 with granulosa cells. Consequently, several new genes expressed at significant levels at each investigated stage were assigned. By building single-cell pseudotemporal trajectories, 3 states and 1 branch point of fate transition for the germ cells were revealed, as well as for the granulosa cells. Moreover, Gene Ontology (GO) term enrichment enabled identification of the biological process most represented in germ cells and granulosa cells or common to both cell types at each specific stage, and the interactions of germ cells and granulosa cells basing on known and novel pathway were presented. Finally, by using single-cell regulatory network inference and clustering (SCENIC) algorithm, we were able to establish a network of regulons that can be postulated as likely candidates for sustaining germ cell-specific transcription programs throughout the period of investigation. Above all, this study provides the whole transcriptome landscape of ovarian cells and unearths new insights during primordial follicle assembly in mice.
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Affiliation(s)
- Jun-Jie Wang
- College of Life Sciences, Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao, China
| | - Wei Ge
- College of Life Sciences, Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao, China
| | - Qiu-Yue Zhai
- College of Life Sciences, Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao, China
| | - Jing-Cai Liu
- College of Life Sciences, Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao, China
| | - Xiao-Wen Sun
- College of Life Sciences, Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao, China
| | - Wen-Xiang Liu
- College of Life Sciences, Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao, China
| | - Lan Li
- College of Life Sciences, Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao, China
| | - Chu-Zhao Lei
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, China
| | - Paul W. Dyce
- Department of Animal Sciences, Auburn University, Auburn, Alabama, United States of America
| | - Massimo De Felici
- Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy
| | - Wei Shen
- College of Life Sciences, Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao, China
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5
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Choi JH, Seok J, Lim SM, Kim TH, Kim GJ. Microenvironmental changes induced by placenta-derived mesenchymal stem cells restore ovarian function in ovariectomized rats via activation of the PI3K-FOXO3 pathway. Stem Cell Res Ther 2020; 11:486. [PMID: 33198818 PMCID: PMC7667861 DOI: 10.1186/s13287-020-02002-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 10/29/2020] [Indexed: 12/23/2022] Open
Abstract
Background Translational studies have explored the therapeutic potential and feasibility of mesenchymal stem cells (MSCs) in several degenerative diseases; however, mechanistic studies of the function of these cells have been insufficient. As ovarian failure causes anovulation as well as ovarian steroid hormonal imbalances, the specific aims of this study were to analyze the therapeutic role of placenta-derived MSCs (PD-MSCs) in an ovarian failure ovariectomy (OVX) rat model and evaluate whether PD-MSC transplantation (Tx) improved folliculogenesis and oocyte maturation in the injured ovary through PI3K/Akt and FOXO signaling. Methods Blood and ovary tissue were collected and analyzed after various PD-MSC Tx treatments in an ovariectomized rat model. Changes in the expression of folliculogenesis- and ovary regeneration-related genes induced by PD-MSC treatments were analyzed by qRT-PCR, Western blotting, and histological analysis. Results The levels of hormones related to ovary function were significantly increased in the PD-MSC Tx groups compared with those in the nontransplantation group (NTx). The follicle numbers in the ovarian tissues were increased along with the increased expression of genes related to folliculogenesis in the PD-MSC Tx groups compared with the NTx groups. Furthermore, Tx PD-MSCs induced follicle maturation by increasing the phosphorylation of GSK3 beta and FOXO3 (p < 0.05) and shifting the balance of growth and apoptosis in oocytes. Conclusions Taken together, these results show that PD-MSC Tx can restore ovarian function and induce ovarian folliculogenesis via the PI3K/Akt and FOXO signaling pathway.
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Affiliation(s)
- Jong Ho Choi
- Department of Oral Pathology, College of Dentistry, Gangneung-Wonju National University, Gangneung-si, 25457, Republic of Korea
| | - Jin Seok
- Department of Biomedical Science, CHA University, 689, Sampyeong-dong, Bundang-gu, Seongnam-si, 13488, Gyeonggi-do, Republic of Korea
| | - Seung Mook Lim
- Department of Biomedical Science, CHA University, 689, Sampyeong-dong, Bundang-gu, Seongnam-si, 13488, Gyeonggi-do, Republic of Korea
| | - Tae Hee Kim
- Department of Obstetrics and Gynecology, Soonchunhyang University College of Medicine Hospital, Asan, 14584, Gyoenggi-do, Republic of Korea
| | - Gi Jin Kim
- Department of Biomedical Science, CHA University, 689, Sampyeong-dong, Bundang-gu, Seongnam-si, 13488, Gyeonggi-do, Republic of Korea.
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Lins TLBG, Gouveia BB, Barberino RS, Silva RLS, Monte APO, Pinto JGC, Campinho DSP, Palheta RC, Matos MHT. Rutin prevents cisplatin-induced ovarian damage via antioxidant activity and regulation of PTEN and FOXO3a phosphorylation in mouse model. Reprod Toxicol 2020; 98:209-217. [PMID: 33031932 DOI: 10.1016/j.reprotox.2020.10.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 09/29/2020] [Accepted: 10/01/2020] [Indexed: 12/12/2022]
Abstract
The aims of the present study were to evaluate the protective effects of rutin during cisplatin-induced ovarian toxicity in mice and to verify the possible involvement of the phosphatase and tension homolog (PTEN)/Forkhead box O3a (FOXO3a) pathway in the rutin actions. Mice received saline solution (control, 0.15 M, i.p.) or cisplatin (5 mg/Kg body weight, i.p.) or they were pretreated with N-acetylcysteine (positive control; 150 mg/Kg of body weight [p.o.]) or with rutin (10, 30 or 50 mg/Kg body weight, p.o.) before cisplatin (5 mg/Kg body weight, i.p.) once daily for 3 days. Next, the ovaries were harvested and destined to histological (follicular morphology and activation), immunohistochemical (cell proliferation and apoptosis) and fluorescence (reactive oxygen species [ROS], glutathione [GSH] and mitochondrial activity) analyses. Moreover, the expression of phosphorylated PTEN (p-PTEN) and FOXO3a (p-FOXO3a) were evaluated to investigate a molecular mechanism by which rutin would prevent the cisplatin-induced ovarian damage. The results showed that pretreatment with N-acetylcysteine or 10 mg/Kg rutin before cisplatin preserved the percentage of normal follicles and cell proliferation, reduced apoptosis and ROS levels and increased active mitochondria and GSH levels compared to the cisplatin treatment (P < 0.05). Cisplatin treatment increased p-PTEN and decreased p-FOXO3a expression in follicles, which was prevented by 10 mg/kg rutin. In conclusion, treatment with 10 mg/Kg rutin has the potential to protect the ovarian follicles against cisplatin-induced toxicity through its antioxidant effects and PTEN/FOXO3a pathway.
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Affiliation(s)
- Thae Lanne B G Lins
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, 56300-990, Petrolina, PE, Brazil
| | - Bruna B Gouveia
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, 56300-990, Petrolina, PE, Brazil
| | - Ricássio S Barberino
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, 56300-990, Petrolina, PE, Brazil
| | - Regina L S Silva
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, 56300-990, Petrolina, PE, Brazil
| | - Alane P O Monte
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, 56300-990, Petrolina, PE, Brazil
| | - Joisyleide G C Pinto
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, 56300-990, Petrolina, PE, Brazil
| | - Daniela S P Campinho
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, 56300-990, Petrolina, PE, Brazil
| | - Raimundo C Palheta
- Laboratory of Veterinary Pharmacology, Department of Veterinary Medicine, Federal University of São Francisco Valley, 56300-990, Petrolina, PE, Brazil
| | - Maria H T Matos
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, 56300-990, Petrolina, PE, Brazil.
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Insulin mitigates apoptosis of porcine follicular granulosa cells by downregulating BimEL. Reprod Biol 2019; 19:293-298. [PMID: 31561987 DOI: 10.1016/j.repbio.2019.08.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 07/31/2019] [Accepted: 08/08/2019] [Indexed: 01/02/2023]
Abstract
Follicular growth or atresia is governed by the survival and apoptosis of granulosa cells. Increasing evidence shows that follicle growth is influenced by energy intake, which is positively related to insulin levels. However, the function of insulin in granulosa cell survival is poorly understood. This study focused on the effects of insulin on porcine medium follicle granulosa cell survival. In the present study, we showed that insulin markedly mitigated the apoptosis of porcine granulosa cells following serum starvation. Moreover, insulin activated the PI3K/Akt pathway to downregulate bim mRNA expression and simultaneously promoted the phosphorylation of BimEL through activating ERK 1/2, both of which reduced the level of BimEL. The results demonstrate that insulin protected the granulosa cells against apoptosis by reducing levels of the pro-apoptotic protein BimEL. However, the concentration of insulin (1 μg/ml) was relatively high. High levels of insulin partly combined with the IGF-1 receptor to play its roles in granulosa cells. This experiment provides new insight into the role of insulin in granulosa cells and sheds light on nutrition-reproduction interactions.
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Long GY, Yang JY, Xu JJ, Ni YH, Zhou XL, Ma JY, Fu YC, Luo LL. SIRT1 knock-in mice preserve ovarian reserve resembling caloric restriction. Gene 2019; 686:194-202. [PMID: 30340050 DOI: 10.1016/j.gene.2018.10.040] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Revised: 08/31/2018] [Accepted: 10/15/2018] [Indexed: 02/07/2023]
Abstract
Previous studies have proposed that caloric restriction (CR) regulates many cell functions and prolongs the lifespan of an organism. Our previous studies proposed that CR also prevents follicular activation and preserves the ovarian reserve in mice by activating SIRT1. To test if SIRT1 preserves the ovarian reserve and prolongs the ovarian longevity, we generated SIRT1 knock-in mice that can overexpress SIRT1 in oocytes of the mouse. Ovaries of the mice at ages 35 days and 15 months were collected, and the follicular development and follicular reserve were examined. The vaginal opening and onset of estrus of transgenic female mice (both the homozygous and heterozygous for SIRT1 overexpression) were later than that of wild-type mice. Both the homozygous and heterozygous SIRT1-overexpressing mice had a larger and stronger reproductive capacity than wild-type mice. Moreover, 35-day-old and 15-month-old homozygous and heterozygous SIRT1-overexpressing mice also had a higher mean number and percentage of healthy follicles, fewer atretic follicles than wild-type mice, and the mean number and percentage of primordial follicles in both the homozygous and heterozygous SIRT1-overexpressing mice were higher than wild-type mice at the same age. However, the phenotypes of heterozygous and homozygous transgenic mice came no difference. Immunohistochemistry showed increased expression of SIRT1 and FOXO3a, and decreased expression of mTOR in both the homozygous and heterozygous SIRT1-overexpressing mice compared with wild-type mice. Thus, oocyte-specific SIRT1-overexpressing mice continuously activate FOXO3a and suppress mTOR and have a larger reproductive capacity, larger follicle reserve and longer ovarian lifespan.
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Affiliation(s)
- Guan-Yun Long
- Department of Gynaecology and Obstetrics of the First Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong Province 515041, People's Republic of China
| | - Jie-Ying Yang
- Department of Gynaecology and Obstetrics of the First Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong Province 515041, People's Republic of China
| | - Jin-Jie Xu
- Laboratory of Cell Senescence, Shantou University Medical College, 22 Xin Ling Rd, Jinping District, Shantou, Guangdong Province 515041, People's Republic of China
| | - Yan-Hong Ni
- Department of Gynaecology, Obstetrics of Shantou Municipal Central Hospital, Shantou, Guangdong Province 515041, People's Republic of China
| | - Xiao-Ling Zhou
- Department of Gynaecology and Obstetrics of the First Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong Province 515041, People's Republic of China
| | - Jia-Yi Ma
- Department of Gynaecology and Obstetrics of the First Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong Province 515041, People's Republic of China
| | - Yu-Cai Fu
- Laboratory of Cell Senescence, Shantou University Medical College, 22 Xin Ling Rd, Jinping District, Shantou, Guangdong Province 515041, People's Republic of China
| | - Li-Li Luo
- Department of Gynaecology and Obstetrics of the First Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong Province 515041, People's Republic of China.
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Ergun S, Oztuzcu S. Sequence-based analysis of 5′UTR and coding regions of CASP3 in terms of miRSNPs and SNPs in targetting miRNAs. Comput Biol Chem 2016; 62:70-4. [DOI: 10.1016/j.compbiolchem.2016.04.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Revised: 04/06/2016] [Accepted: 04/06/2016] [Indexed: 01/18/2023]
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10
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Gan W, He H, Li L. Molecular cloning, characterisation and functional analysis of the duck Forkhead box O3 (FOXO3) gene. Br Poult Sci 2016; 57:143-50. [DOI: 10.1080/00071668.2015.1135503] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Abstract
BH3-only proteins are pro-apoptotic members of the BCL2 family that play pivotal roles in embryonic development, tissue homeostasis and immunity by triggering cell death through the intrinsic apoptosis pathway. Recent in vitro and in vivo studies have demonstrated that BH3-only proteins are also essential mediators of apoptosis within the ovary and are responsible for the initiation of the cell death signalling cascade in a cell type and stimulus-specific fashion. This review gives a brief overview of the intrinsic apoptosis pathway and summarise the roles of individual BH3-only proteins in the promotion of apoptosis in embryonic germ cells, oocytes, follicular granulosa cells and luteal cells. The role of these proteins in activating apoptosis in response to developmental cues and cell stressors, such as exposure to chemotherapy, radiation and environmental toxicants, is described. Studies on the function of BH3-only proteins in the ovary are providing valuable insights into the regulation of oocyte number and quality, as well as ovarian endocrine function, which collectively influence the female reproductive lifespan and health.
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Affiliation(s)
- Karla J Hutt
- MIMR-PHIClayton, Victoria, AustraliaDepartment of Anatomy and Developmental BiologyMonash University, Clayton, Victoria 3168, Australia MIMR-PHIClayton, Victoria, AustraliaDepartment of Anatomy and Developmental BiologyMonash University, Clayton, Victoria 3168, Australia
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Cheong Y, Sadek KH, Bruce KD, Macklon N, Cagampang FR. Diet-induced maternal obesity alters ovarian morphology and gene expression in the adult mouse offspring. Fertil Steril 2014; 102:899-907. [PMID: 25063726 DOI: 10.1016/j.fertnstert.2014.06.015] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2014] [Revised: 06/09/2014] [Accepted: 06/11/2014] [Indexed: 12/13/2022]
Abstract
OBJECTIVE To examine the effects of high-fat (HF) diet-induced maternal obesity on follicular population and gene expression in adult offspring ovaries. DESIGN Experimental mouse study. SETTING Laboratory. ANIMAL(S) Mice on HF diet. INTERVENTION(S) Female C57BL/6J mice were fed an HF or standard chow (C) diet 6 weeks before conception, through pregnancy and lactation. Offspring were fed the C or HF diet from weaning, creating the HF/HF, HF/C, C/HF, C/C offspring groups. MAIN OUTCOME MEASURE(S) Follicular counts and gene expression in adult offspring ovaries. RESULT(S) Prenatal exposure to maternal HF nutrition resulted in the reduction of primordial, antral, and Graafian follicle numbers in offspring ovaries (both HF/C and HF/HF). Expression levels of genes involved in apoptosis (FoXO3a), follicular growth and development (Gdf9), and circadian rhythms generation (Clock and Bmal1) were elevated in the ovaries of HF/C and HF/HF offspring, while expression of the circadian clock genes Cry1 and Per1 were lower in HF/HF ovaries. CONCLUSION(S) Maternal obesity during pregnancy has long-term deleterious consequences on follicular growth and development in the adult offspring ovaries, which may impact their reproductive potential.
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Affiliation(s)
- Ying Cheong
- Institute of Developmental Sciences, University of Southampton Faculty of Medicine, Southampton, United Kingdom; Princess Anne Hospital, Southampton University Hospital NHS Trust, Southampton, United Kingdom
| | - Khaled H Sadek
- Institute of Developmental Sciences, University of Southampton Faculty of Medicine, Southampton, United Kingdom; Princess Anne Hospital, Southampton University Hospital NHS Trust, Southampton, United Kingdom
| | - Kimberley D Bruce
- Institute of Developmental Sciences, University of Southampton Faculty of Medicine, Southampton, United Kingdom
| | - Nick Macklon
- Institute of Developmental Sciences, University of Southampton Faculty of Medicine, Southampton, United Kingdom; Princess Anne Hospital, Southampton University Hospital NHS Trust, Southampton, United Kingdom
| | - Felino R Cagampang
- Institute of Developmental Sciences, University of Southampton Faculty of Medicine, Southampton, United Kingdom.
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A missense mutation in the transcription factor Foxo3a causes teratomas and oocyte abnormalities in mice. Mamm Genome 2011; 22:235-48. [PMID: 21347845 DOI: 10.1007/s00335-011-9317-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2010] [Accepted: 02/04/2011] [Indexed: 02/01/2023]
Abstract
An N-ethyl-N-nitrosourea random mutation screen was used to identify recessive modifiers of gene silencing in the mouse using an epigenetically sensitive reporter transgene. One of the mutant lines, MommeR1, was identified as a suppressor of variegation and it showed female-specific age-associated infertility in homozygotes. Linkage analysis identified a region on chromosome 10, containing the Foxo3a gene, previously shown to play a critical role in female gametogenesis. Foxo3a is a transcription factor with roles in cell cycle control, apoptosis, neural and hematopoietic cell differentiation, and DNA repair. Sequencing of the Foxo3a gene in MommeR1 mice revealed a point mutation that causes an amino acid substitution in the highly conserved Forkhead DNA-binding domain. In vitro transcription assays showed that the point mutation causes loss of FOXO3a transactivation activity. Compound heterozygotes made with Foxo3a-null mice (carrying the targeted deletion of exon 2) displayed complementation with respect to both the activation of the reporter transgene and defects in folliculogenesis similar to those seen in MommeR1 homozygotes, supporting the conclusion that this is the causative mutation. Approximately one in six female MommeR1 homozygotes develop teratomas, a phenotype not reported in Foxo3a-null mice. Ovulated oocytes from MommeR1 homozygotes display a number of abnormalities. The MommeR1 mice provide a novel platform to investigate teratocarcinogenesis and link Foxo3a with parthenogenesis and ovarian cancer. The finding of Foxo3a as a modifier of epigenetic reprogramming is discussed.
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