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Spector I, Derech-Haim S, Boustanai I, Safrai M, Meirow D. Anti-Müllerian hormone signaling in the ovary involves stromal fibroblasts: a study in humans and mice provides novel insights into the role of ovarian stroma. Hum Reprod 2024:deae221. [PMID: 39361580 DOI: 10.1093/humrep/deae221] [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: 01/25/2024] [Revised: 07/08/2024] [Indexed: 10/05/2024] Open
Abstract
STUDY QUESTION What is the involvement of ovarian stroma in the anti-Müllerian hormone (AMH) signaling pathway and which stromal cells are involved? SUMMARY ANSWER Mouse and human ovaries show high expression of AMH receptor II (AMHR2) in the stromal fibroblasts surrounding the follicles and activation of the post-AMHR2 pathway by recombinant AMH was evidenced by increased phosphorylation of SMAD1,5 and 9, increased expression AMHR2 and upregulation of αSMA, suggesting fibroblast activation to initiate myofibroblast differentiation. WHAT IS KNOWN ALREADY AMH secreted by small growing follicles, regulates ovarian activity. It suppresses initial primordial follicle (PMF) recruitment and FSH-dependent growth. AMH signal transduction is mediated by AMHR2, activating intracellular SMAD proteins and other signaling cascades to induce target-gene expression. Although AMHR2 expression has been reported within the follicle unit, there is evidence suggesting it may be identified in the stroma as well. STUDY DESIGN, SIZE, DURATION Fresh murine ovaries were extracted from BALB/c mice (6 weeks old; n = 12 and 21 days old; n = 56). Frozen-thawed ovarian fragments were obtained from 10 women, aged 18-35, who had undergone ovarian tissue cryopreservation and donated frozen ovarian tissue for research. PARTICIPANTS/MATERIALS, SETTING, METHODS Murine (6 weeks old) and human donor ovaries were immunostained for AMHR2 and Collagen 1α/αSMA/VCAM1, with additional vimentin staining in mice. Murine (21 days old) and human donor ovaries were used for fibroblast isolation and subsequent 7-day cultures. Prior to assessing AMH effects on isolated fibroblast culture, purity validation tests were implemented to ensure the absence of epithelial, immune, endothel, granulosa, and theca ovarian cell populations. The fibroblast culture's homogeneity was validated by RT-qPCR and western-blot assays, confirming negativity for E-cadherin, CD31, aromatase, CYP17A1, and positivity for αSMA and vimentin. Fibroblasts were then subjected to rAMH treatment in vitro (200 ng/ml) for 0-72 h, with an additional time point of 96 h for human samples, followed by RT-qPCR, western blot, and immunocytochemistry (ICC) for AMHR2 expression. AMHR2 post-receptor signaling was examined by pSMAD1,5,9 levels via western blot. Activated fibroblast marker, αSMA, was assessed via western blot and ICC. MAIN RESULTS AND THE ROLE OF CHANCE Immunostaining of mouse and human ovarian tissue showed that stromal cells around follicles at all developmental stages exhibit high AMHR2 expression, while granulosa cells of growing follicles show considerably lower levels. The majority of these AMHR2-positive stromal cells were identified as fibroblasts (Collagen1α in mice and human; vimentin in mice). RT-qPCR, western blot, and immunostaining were performed on cultured mouse and human fibroblasts, confirming that they consisted of a pure fibroblast population (αSMA/vimentin positive and negative for other cell-type markers). A total of 99.81% (average 28.94 ± 1.34 cells/field in mice) and 100% (average 19.20 ± 1.39 cells/field in human samples) of these fibroblasts expressed AMHR2 (ICC). rAMH treated cultured fibroblasts showed increased pSMAD1,5 and 9 levels, demonstrating the effects of AMH on its downstream signaling pathway. pSMAD1,5 and 9 expression increased, as detected by western blot: 1.92-fold in mice (48 h, P = 0.026) and 2.37-fold in human samples (48 h, P = 0.0002). In addition, rAMH treatment increased AMHR2 protein expression, as observed in ICC (human): a 2.57-fold upregulation of AMHR2 Mean Fluorescence Intensity (MFI) (96 h, P = 0.00036), and western blot, showing a 4.2-fold time-dependent increase (48 h, P = 0.026) in mice and 2.4-fold change (48 h, P = 0.0003) in human donors. Exposure to rAMH affected AMHR2 transcription upregulation, with a 6.48-fold change (72 h, P = 0.0137) in mice and a 7.87-fold change (72 h, P < 0.0001) in humans. rAMH treatment induced fibroblast activation (αSMA positive), demonstrating the dynamic effects of AMH on fibroblast behavior. αSMA expression elevation was detected in ICC with a 2.28-fold MFI increase in humans (96 h, P = 0.000067), and in western blot with a 5.12-fold increase in mice (48 h, P = 0.0345) and a 2.69-fold increase in humans (48 h, P ≤ 0.0001). Activated AMHR2-positive stained fibroblast fractions were solely located around growing follicles, in both human and mice. In addition, a small population of AMHR2-positive stained theca cells (VCAM1 positive) was observed. LARGE SCALE DATA N/A. LIMITATIONS, REASONS FOR CAUTION Ex vivo, fibroblast gene expression might be changed by adhesion to the tissue-culture plate. Nevertheless, cultured fibroblasts (with and without rAMH) are subjected to the same conditions. Observations or significant differences can therefore be considered reliable. In addition, the presented effect of rAMH on fibroblasts is not directly linked to the known inhibitory effect of AMH on follicle activation. WIDER IMPLICATIONS OF THE FINDINGS Clarifying the populations of AMH-responsive cells in the ovary provides a foundation for further investigation of the complex AMH signaling across the ovary. The composition of AMH-releasing and -responsive cells can shed light on the communication network between follicles and their environment, which may elucidate the mechanisms behind the AMH inhibitory effect on PMF activation. STUDY FUNDING/COMPETING INTEREST(S) This work was financially supported by grants from the Kahn Foundation. There are no competing interests in this study. TRIAL REGISTRATION NUMBER N/A.
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Affiliation(s)
- Itay Spector
- Fertility Preservation Laboratory, Sheba Medical Center, Tel Hashomer, Israel
| | - Sanaz Derech-Haim
- Fertility Preservation Laboratory, Sheba Medical Center, Tel Hashomer, Israel
- Faculty of Medicine, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Ilana Boustanai
- Fertility Preservation Laboratory, Sheba Medical Center, Tel Hashomer, Israel
| | - Myriam Safrai
- Fertility Preservation Laboratory, Sheba Medical Center, Tel Hashomer, Israel
| | - Dror Meirow
- Fertility Preservation Laboratory, Sheba Medical Center, Tel Hashomer, Israel
- Faculty of Medicine, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
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2
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Xu Z, Zhu Y, Liu L, Liu C, Dong Z. A global bibliometric and visual analysis of research on premature ovarian failure: Based on the perspective of stem cells. Medicine (Baltimore) 2024; 103:e38399. [PMID: 39259078 PMCID: PMC11142804 DOI: 10.1097/md.0000000000038399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 03/15/2024] [Accepted: 05/08/2024] [Indexed: 09/12/2024] Open
Abstract
Premature ovarian failure (POF), a condition influenced by genetic and immune factors, remains incurable despite years of intensive research and significant efforts. This persisting challenge underscores the urgency to address this escalating health concern. Fortunately, stem cell regenerative medicine has emerged as a promising avenue for developing therapeutic strategies and innovative treatments for POF. Bibliometric analysis, renowned for its objectivity, systematic approach, and comprehensive coverage of a given field, has yet to be applied to the study of stem cell research in POF. This study used CiteSpace software to assess contributions and co-occurrence relationships among various countries/regions, institutes, journals, and authors. This approach also allowed us to identify research hotspots and promising future trends within this field. Additionally, we generated visualizing maps utilizing the Web of Science Core Collection (WOSCC) and PubMed publications. By providing valuable information and references, we aim to enhance the understanding of the challenges involved in translating stem cell regeneration into clinical therapeutic potential for POF. Furthermore, our analysis and findings guide researchers and clinicians, facilitating future collaborative research and clinical intervention efforts.
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Affiliation(s)
- Zhiguo Xu
- Department of Pharmaceutical Engineering, School of Life and Health Sciences, Huzhou College, Huzhou, Zhejiang Province, China
- School of Life Sciences and Technology, Tongji University, Shanghai, China
- Xiehe Union East China Stem Cell & Gene Engineering Co., Ltd, Huzhou, Zhejiang Province, China
| | - Yi Zhu
- Shaoxing University Yuanpei College, Shaoxing, Zhejiang Province, China
- Huzhou University, Huzhou, Zhejiang Province, China
| | - Lefeng Liu
- School of Life Sciences and Technology, Tongji University, Shanghai, China
- Xiehe Union East China Stem Cell & Gene Engineering Co., Ltd, Huzhou, Zhejiang Province, China
| | - Chao Liu
- Xiehe Union East China Stem Cell & Gene Engineering Co., Ltd, Huzhou, Zhejiang Province, China
| | - Zhilong Dong
- Tianjin Cord Blood Bank, National Industrial Base for Stem Cell Engineering Products, Tianjin, China
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Protein Sciences and College of Life Sciences, Nankai University, Tianjin, China
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3
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Tsui EL, McDowell HB, Laronda MM. Restoring Ovarian Fertility and Hormone Function: Recent Advancements, Ongoing Efforts and Future Applications. J Endocr Soc 2024; 8:bvae073. [PMID: 38698870 PMCID: PMC11065362 DOI: 10.1210/jendso/bvae073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Indexed: 05/05/2024] Open
Abstract
The last 20 years have seen substantial improvements in fertility and hormone preservation and restoration technologies for a growing number of cancer survivors. However, further advancements are required to fill the gaps for those who cannot use current technologies or to improve the efficacy and longevity of current fertility and hormone restoration technologies. Ovarian tissue cryopreservation (OTC) followed by ovarian tissue transplantation (OTT) offers those unable to undergo ovarian stimulation for egg retrieval and cryopreservation an option that restores both fertility and hormone function. However, those with metastatic disease in their ovaries are unable to transplant this tissue. Therefore, new technologies to produce good-quality eggs and restore long-term cyclic ovarian function are being investigated and developed to expand options for a variety of patients. This mini-review describes current and near future technologies including in vitro maturation, in vitro follicle growth and maturation, bioprosthetic ovaries, and stem cell applications in fertility restoration research by their proximity to clinical application.
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Affiliation(s)
- Elizabeth L Tsui
- Department of Pediatrics, Division of Endocrinology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
- Stanley Manne Children's Research Institute, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL 60611, USA
| | - Hannah B McDowell
- Department of Pediatrics, Division of Endocrinology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
- Stanley Manne Children's Research Institute, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL 60611, USA
| | - Monica M Laronda
- Department of Pediatrics, Division of Endocrinology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
- Stanley Manne Children's Research Institute, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL 60611, USA
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
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4
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Wang X, Zhang Y, Yu J, Ma Y, Xu Y, Shi J, Qi Z, Liu X. Identification and analysis of key circRNAs in the mouse embryonic ovary provides insight into primordial follicle development. BMC Genomics 2024; 25:139. [PMID: 38310234 PMCID: PMC10837906 DOI: 10.1186/s12864-024-10058-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 01/29/2024] [Indexed: 02/05/2024] Open
Abstract
BACKGROUND CircRNAs are a class of noncoding RNAs with tissue- and development-specific expression characteristics. In many mammals, primordial follicle development begins in the embryonic stage. However, the study of circRNAs in primordial follicle development in mice has not been reported. RESULTS In this study, ovaries were collected from mouse foetuses at 15.5 days post coitus (dpc) and 17.5 dpc, which are two key stages of primordial follicle development. A total of 4785 circRNAs were obtained by using RNA-seq. Of these, 83 differentially expressed circRNAs were identified. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analyses showed that these differential circRNAs were mainly involved in the regulation of reproductive development. Through qRT-PCR, back-splice sequence detection and enzyme digestion protection experiments, we found that circ-009346, circ-014674, circ-017054 and circ-008296 were indeed circular. Furthermore, circ-009346, circ-014674 and circ-017054 were identified as three key circRNAs by analysing their expression in the ovaries of mice at different developmental stages. The circRNA-miRNA-mRNA interaction network was constructed and validated for target miRNA and mRNA using qRT-PCR. The interacting genes circ-009346, circ-014674, and circ-017054 were subjected to KEGG enrichment analysis. We found that circ-014674 may participate in the assembly and reserve of primordial follicles through oestrogen and the Janus kinase (JAK) signal transducer and activator of transcription (STAT) signalling pathway (JAK-SATA). Circ-009346 and circ-017054 may have similar functions and are involved in the activation and growth of primordial follicles through the mitogen-activated protein kinase (MAPK) and phosphoinositide 3-kinase (PI3K) signalling pathways. CONCLUSIONS Based on our findings, three circRNAs associated with primordial follicle development were identified, and their potential mechanisms of regulating primordial follicle development were revealed. These findings will help us better understand the molecular mechanism of circRNAs in primordial follicles and provide important references and targets for the development of primordial follicles.
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Affiliation(s)
- Xiangyan Wang
- Key Laboratory of Ministry of Education for Conservation and Utilization of Special Biological Resources in the Western, Ningxia University, Yinchuan, Ningxia, 750021, China
- School of Life Sciences, Ningxia University, Yinchuan, Ningxia, 750021, China
| | - Yan Zhang
- Key Laboratory of Ministry of Education for Conservation and Utilization of Special Biological Resources in the Western, Ningxia University, Yinchuan, Ningxia, 750021, China
- School of Life Sciences, Ningxia University, Yinchuan, Ningxia, 750021, China
| | - Jianjie Yu
- Key Laboratory of Ministry of Education for Conservation and Utilization of Special Biological Resources in the Western, Ningxia University, Yinchuan, Ningxia, 750021, China
- School of Life Sciences, Ningxia University, Yinchuan, Ningxia, 750021, China
| | - Yabo Ma
- Key Laboratory of Ministry of Education for Conservation and Utilization of Special Biological Resources in the Western, Ningxia University, Yinchuan, Ningxia, 750021, China
- School of Life Sciences, Ningxia University, Yinchuan, Ningxia, 750021, China
| | - Yaxiu Xu
- Key Laboratory of Ministry of Education for Conservation and Utilization of Special Biological Resources in the Western, Ningxia University, Yinchuan, Ningxia, 750021, China
- School of Life Sciences, Ningxia University, Yinchuan, Ningxia, 750021, China
| | - Jiaqi Shi
- Key Laboratory of Ministry of Education for Conservation and Utilization of Special Biological Resources in the Western, Ningxia University, Yinchuan, Ningxia, 750021, China
- School of Life Sciences, Ningxia University, Yinchuan, Ningxia, 750021, China
| | - Zhipeng Qi
- Key Laboratory of Ministry of Education for Conservation and Utilization of Special Biological Resources in the Western, Ningxia University, Yinchuan, Ningxia, 750021, China
- School of Life Sciences, Ningxia University, Yinchuan, Ningxia, 750021, China
| | - Xinfeng Liu
- Key Laboratory of Ministry of Education for Conservation and Utilization of Special Biological Resources in the Western, Ningxia University, Yinchuan, Ningxia, 750021, China.
- School of Life Sciences, Ningxia University, Yinchuan, Ningxia, 750021, China.
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Kashi O, Meirow D. Overactivation or Apoptosis: Which Mechanisms Affect Chemotherapy-Induced Ovarian Reserve Depletion? Int J Mol Sci 2023; 24:16291. [PMID: 38003481 PMCID: PMC10671775 DOI: 10.3390/ijms242216291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Revised: 11/07/2023] [Accepted: 11/09/2023] [Indexed: 11/26/2023] Open
Abstract
Dormant primordial follicles (PMF), which constitute the ovarian reserve, are recruited continuously into the cohort of growing follicles in the ovary throughout female reproductive life. Gonadotoxic chemotherapy was shown to diminish the ovarian reserve pool, to destroy growing follicle population, and to cause premature ovarian insufficiency (POI). Three primary mechanisms have been proposed to account for this chemotherapy-induced PMF depletion: either indirectly via over-recruitment of PMF, by stromal damage, or through direct toxicity effects on PMF. Preventative pharmacological agents intervening in these ovotoxic mechanisms may be ideal candidates for fertility preservation (FP). This manuscript reviews the mechanisms that disrupt follicle dormancy causing depletion of the ovarian reserve. It describes the most widely studied experimental inhibitors that have been deployed in attempts to counteract these affects and prevent follicle depletion.
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Affiliation(s)
- Oren Kashi
- The Morris Kahn Fertility Preservation Center, Sheba Medical Center, Ramat Gan 5262000, Israel;
| | - Dror Meirow
- The Morris Kahn Fertility Preservation Center, Sheba Medical Center, Ramat Gan 5262000, Israel;
- Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel
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Lau ESW, Zhu B, Sun MA, Ngai SM, Ge W. Proteomic analysis of zebrafish folliculogenesis identifies YB-1 (Ybx1/ybx1) as a potential gatekeeping molecule controlling early ovarian folliculogenesis. Biol Reprod 2023; 109:482-497. [PMID: 37471641 DOI: 10.1093/biolre/ioad078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 06/16/2023] [Accepted: 07/17/2023] [Indexed: 07/22/2023] Open
Abstract
As in mammals, ovarian folliculogenesis in teleosts also consists of two phases: the primary growth (PG) and secondary growth (SG) phases, which are analogous to the preantral and antral phases respectively in mammals. In this study, we performed a proteomic analysis on zebrafish follicles undergoing the PG-SG transition aiming to identify factors involved in the event. Numerous proteins showed significant changes, and the most prominent one was Y-box binding protein 1 (YB-1; Ybx1/ybx1), a transcription factor and mRNA-binding protein. YB-1 belongs to the Y-box binding protein family, which also includes the gonad-specific YB-2. Interestingly, phylogenetic analysis showed no YB-2 homolog in zebrafish. Although ybx1 mRNA was expressed in various tissues, its protein Ybx1 was primarily produced in the gonads, similar to YB-2 in other species. In the ovary, Ybx1 protein started to appear in early follicles newly emerged from the germ cell cysts, reached the highest level in late PG oocytes, but decreased precipitously when the follicles entered the SG phase. In PG follicles, Ybx1 might function as a key component of the messenger ribonucleoprotein particles (mRNPs) in association with other RNA-binding proteins. Similar to mammalian YB-1, zebrafish Ybx1 also contains functional signals that determine its intracellular localization. In conclusion, Ybx1 may play dual roles of YB-1 and YB-2 in zebrafish. In the ovary, Ybx1 binds mRNAs to stabilize them while preventing their translation. At PG-SG transition, Ybx1 is removed to release the masked mRNAs for translation into functional proteins, leading to follicle activation.
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Affiliation(s)
- Esther Shuk-Wa Lau
- School of Life Sciences, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong 999077, China
| | - Bo Zhu
- Department of Biomedical Sciences and Centre of Reproduction, Development and Aging (CRDA), Faculty of Health Sciences, University of Macau, Taipa, Macau 999078, China
| | - Ming-An Sun
- Institute of Comparative Medicine, College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Sai Ming Ngai
- School of Life Sciences, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong 999077, China
| | - Wei Ge
- Department of Biomedical Sciences and Centre of Reproduction, Development and Aging (CRDA), Faculty of Health Sciences, University of Macau, Taipa, Macau 999078, China
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Telfer EE, Grosbois J, Odey YL, Rosario R, Anderson RA. Making a good egg: human oocyte health, aging, and in vitro development. Physiol Rev 2023; 103:2623-2677. [PMID: 37171807 PMCID: PMC10625843 DOI: 10.1152/physrev.00032.2022] [Citation(s) in RCA: 23] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 05/03/2023] [Accepted: 05/06/2023] [Indexed: 05/13/2023] Open
Abstract
Mammalian eggs (oocytes) are formed during fetal life and establish associations with somatic cells to form primordial follicles that create a store of germ cells (the primordial pool). The size of this pool is influenced by key events during the formation of germ cells and by factors that influence the subsequent activation of follicle growth. These regulatory pathways must ensure that the reserve of oocytes within primordial follicles in humans lasts for up to 50 years, yet only approximately 0.1% will ever be ovulated with the rest undergoing degeneration. This review outlines the mechanisms and regulatory pathways that govern the processes of oocyte and follicle formation and later growth, within the ovarian stroma, through to ovulation with particular reference to human oocytes/follicles. In addition, the effects of aging on female reproductive capacity through changes in oocyte number and quality are emphasized, with both the cellular mechanisms and clinical implications discussed. Finally, the details of current developments in culture systems that support all stages of follicle growth to generate mature oocytes in vitro and emerging prospects for making new oocytes from stem cells are outlined.
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Affiliation(s)
- Evelyn E Telfer
- Institute of Cell Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, United Kingdom
- Centre for Discovery Brain Sciences, Biomedical Sciences, University of Edinburgh, Edinburgh, United Kingdom
| | - Johanne Grosbois
- Institute of Cell Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, United Kingdom
- Centre for Discovery Brain Sciences, Biomedical Sciences, University of Edinburgh, Edinburgh, United Kingdom
| | - Yvonne L Odey
- Institute of Cell Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, United Kingdom
- Centre for Discovery Brain Sciences, Biomedical Sciences, University of Edinburgh, Edinburgh, United Kingdom
| | - Roseanne Rosario
- Centre for Discovery Brain Sciences, Biomedical Sciences, University of Edinburgh, Edinburgh, United Kingdom
- MRC Centre for Reproductive Health, Queens Medical Research Institute, University of Edinburgh, Edinburgh, United Kingdom
| | - Richard A Anderson
- MRC Centre for Reproductive Health, Queens Medical Research Institute, University of Edinburgh, Edinburgh, United Kingdom
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Du Y, Gupta P, Qin S, Sieber M. The role of metabolism in cellular quiescence. J Cell Sci 2023; 136:jcs260787. [PMID: 37589342 PMCID: PMC10445740 DOI: 10.1242/jcs.260787] [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] [Indexed: 08/18/2023] Open
Abstract
Cellular quiescence is a dormant, non-dividing cell state characterized by significant shifts in physiology and metabolism. Quiescence plays essential roles in a wide variety of biological processes, ranging from microbial sporulation to human reproduction and wound repair. Moreover, when the regulation of quiescence is disrupted, it can drive cancer growth and compromise tissue regeneration after injury. In this Review, we examine the dynamic changes in metabolism that drive and support dormant and transiently quiescent cells, including spores, oocytes and adult stem cells. We begin by defining quiescent cells and discussing their roles in key biological processes. We then examine metabolic factors that influence cellular quiescence in both healthy and disease contexts, and how these could be leveraged in the treatment of cancer.
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Affiliation(s)
- Yipeng Du
- UT Southwestern Medical Center, 5323 Harry Hines Blvd, MC9040 ND13.214, Dallas, TX 75390, USA
| | - Parul Gupta
- UT Southwestern Medical Center, 5323 Harry Hines Blvd, MC9040 ND13.214, Dallas, TX 75390, USA
| | - Shenlu Qin
- UT Southwestern Medical Center, 5323 Harry Hines Blvd, MC9040 ND13.214, Dallas, TX 75390, USA
| | - Matthew Sieber
- UT Southwestern Medical Center, 5323 Harry Hines Blvd, MC9040 ND13.214, Dallas, TX 75390, USA
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9
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Sheikh S, Lo BKM, Kaune H, Bansal J, Deleva A, Williams SA. Rescue of follicle development after oocyte-induced ovary dysfunction and infertility in a model of POI. Front Cell Dev Biol 2023; 11:1202411. [PMID: 37614224 PMCID: PMC10443433 DOI: 10.3389/fcell.2023.1202411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Accepted: 07/20/2023] [Indexed: 08/25/2023] Open
Abstract
The mechanisms and aetiology underlying the development of premature ovarian insufficiency (POI) are poorly understood. However, the oocyte clearly has a role as demonstrated by the Double Mutant (DM) mouse model where ovarian dysfunction (6 weeks) is followed by POI (3 months) due to oocyte-specific deletion of complex and hybrid N- and O-glycans. The ovaries of DM mice contain more primary follicles (3a stage) accompanied by fewer developing follicles, indicating a block in follicle development. To investigate this block, we first analysed early follicle development in postnatal (8-day), pre-pubertal (3-week) and post-pubertal (6-week and 3-month) DM (C1galt1 F/F Mgat1 F/F:ZP3Cre) and Control (C1galt1 F/F Mgat1 F/F) mice. Second, we investigated if transplantation of DM ovaries into a "normal" endocrine environment would restore follicle development. Third, we determined if replacing DM ovarian somatic cells would rescue development of DM oocytes. At 3-week, DM primary 3a follicles contain large oocytes accompanied by early development of a second GC layer and increased GC proliferation. At 6-week, DM primary 3a follicles contain abnormally large oocytes, accompanied with decreased GC proliferation. Transplantation of DM ovaries into a 'normal' endocrine environment did not restore normal follicle development. However, replacing somatic cells by generating reaggregated ovaries (ROs) did enable follicle development to progress and thus highlighted intra-ovarian factors were responsible for the onset of POI in DM females. Thus, these studies demonstrate oocyte-initiated altered communication between GCs and oocytes results in abnormal primary follicles which fail to progress and leads to POI.
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Affiliation(s)
| | | | | | | | | | - Suzannah A. Williams
- Nuffield Department of Women’s and Reproductive Health, Women’s Centre, John Radcliffe Hospital, University of Oxford, Oxford, United Kingdom
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10
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Saber M, Shekari F, Mousavi SA, Moini A, Miri MS, Esfandiari F. JAK/STAT3 pathway promotes proliferation of ovarian aggregate-derived stem cells in vitro. Exp Cell Res 2023:113689. [PMID: 37355151 DOI: 10.1016/j.yexcr.2023.113689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 06/13/2023] [Accepted: 06/17/2023] [Indexed: 06/26/2023]
Abstract
BACKGROUND The accurate identification and isolation of ovarian stem cells from mammalian ovaries remain a major challenge because of the lack of specific surface markers and suitable in vitro culture systems. Optimized culture conditions for in vitro expansion of ovarian stem cells would allow for identifying requirements of these stem cells for proliferation and differentiation that would pave the way to uncover role of ovarian stem cells in ovarian pathophysiology. Here, we used three-dimensional (3D) aggregate culture system for enrichment of ovarian stem cells and named them aggregate-derived stem cells (ASCs). We hypothesized that mimicking the ovarian microenvironment in vitro by using an aggregate model of the ovary would provide a suitable niche for the isolation of ovarian stem cells from adult mouse and human ovaries and wanted to find out the main cellular pathway governing the proliferation of these stem cells. RESULTS We showed that ovarian aggregates take an example from ovary microenvironment in terms of expression of ovarian markers, hormone secretion and supporting the viability of the cells. We found that aggregates-derived stem cells proliferate in vitro as long-term while remained expression of germline markers. These ovarian stem cells differentiated to oocyte like cells in vitro spontaneously. Transplantation of these stem cells in to chemotherapy mouse ovary could restore ovarian structure. RNA-sequencing analysis revealed that interleukin6 is upregulated pathway in ovarian aggregate-derived stem cells. Our data showed that JAK/Stat3 signaling pathway which is activated downstream of IL6 is critical for ovarian stem cells proliferation. CONCLUSIONS We developed a platform that is highly reproducible for in vitro propagation of ovarian stem cells. Our study provides a primary insight into cellular pathway governing the proliferation of ovarian stem cells.
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Affiliation(s)
- Maryam Saber
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Faezeh Shekari
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Seyed-Ahmad Mousavi
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Ashraf Moini
- Department of Endocrinology and Female Infertility, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran; Department of Gynecology and Obstetrics, Arash Women's Hospital, Tehran University of Medical Sciences, Tehran, Iran; Breast Disease Research Center (BDRC), Tehran University of Medical Sciences, Tehran, Iran
| | - Monireh-Sadat Miri
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Fereshteh Esfandiari
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran.
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11
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Zhu M, Xu M, Zhang J, Zheng C. The role of Hippo pathway in ovarian development. Front Physiol 2023; 14:1198873. [PMID: 37334049 PMCID: PMC10275494 DOI: 10.3389/fphys.2023.1198873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Accepted: 05/22/2023] [Indexed: 06/20/2023] Open
Abstract
The follicle is the functional unit of the ovary, whereby ovarian development is largely dependent on the development of the follicles themselves. The activation, growth, and progression of follicles are modulated by a diverse range of factors, including reproductive endocrine system and multiple signaling pathways. The Hippo pathway exhibits a high degree of evolutionary conservation between both Drosophila and mammalian systems, and is recognized for its pivotal role in regulating cellular proliferation, control of organ size, and embryonic development. During the process of follicle development, the components of the Hippo pathway show temporal and spatial variations. Recent clinical studies have shown that ovarian fragmentation can activate follicles. The mechanism is that the mechanical signal of cutting triggers actin polymerization. This process leads to the disruption of the Hippo pathway and subsequently induces the upregulation of downstream CCN and apoptosis inhibitors, thereby promoting follicle development. Thus, the Hippo pathway plays a crucial role in both the activation and development of follicles. In this article, we focused on the development and atresia of follicles and the function of Hippo pathway in these processes. Additionally, the physiological effects of Hippo pathway in follicle activation are also explored.
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12
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Fukami M. Ovarian dysfunction in women with Turner syndrome. Front Endocrinol (Lausanne) 2023; 14:1160258. [PMID: 37033245 PMCID: PMC10076527 DOI: 10.3389/fendo.2023.1160258] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 03/09/2023] [Indexed: 04/11/2023] Open
Abstract
Ovarian dysfunction is one of the most common features of women with Turner syndrome. In these women, oocyte apoptosis is markedly accelerated from the early stage of fetal life. Reduction in the number of germ cells disturbs primordial follicle development and thereby leads to the formation of streak gonads. There are three possible causes of accelerated germ cell loss in 45,X ovaries. First, chromosomal pairing failure due to X chromosomal aneuploidy is believed to induce meiotic arrest. Indeed, it has been suggested that the dosage of the X chromosome is more critical for the survival of the oocytes than for other cells in the ovary. Second, impaired coupling between oocytes and granulosa cells may also contribute to germ cell apoptosis. Previous studies have shown that 45,X ovaries may tend to lose tight junctions which are essential for intercellular interactions. Lastly, ovarian dysfunction in women with Turner syndrome is partly attributable to the reduced dosage of several genes on the X chromosome. Specifically, BMP15, PGRMC1, and some other genes on the X chromosome have been implicated in ovarian function. Further studies on the mechanisms of ovarian dysfunction are necessary to improve the reproductive outcomes of women with Turner syndrome.
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13
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The intrafollicular concentration of leptin as a potential biomarker to predict oocyte maturity in in-vitro fertilization. Sci Rep 2022; 12:19573. [PMID: 36379980 PMCID: PMC9666526 DOI: 10.1038/s41598-022-23737-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 11/04/2022] [Indexed: 11/16/2022] Open
Abstract
Oocyte maturity is critical to the development potential of the embryo and pregnancy outcomes in natural and in-vitro fertilization (IVF). In IVF, oocyte maturity is typically evaluated using morphological criteria, although such assessment remains highly subjective. To identify reliable biomarkers of oocyte maturity, this study investigates the relationship between follicular cytokine concentrations and oocyte maturity in IVF patients with different ovarian reserves. In this prospective study, follicular fluid was collected during oocyte retrieval and the concentrations of cytokines involved in ovarian folliculogenesis were determined. Follicular fluid cytokine concentrations were compared between participants in three groups according to serum anti-Mullerian hormone (AMH) concentration, as follows: low AMH, < 2 ng/mL; normal AMH, 2-5 ng/mL; and high AMH, > 5 ng/mL. Pearson's correlation coefficient analysis showed that the number of mature oocytes correlated positively and strongly with serum AMH level (r = 0.719; p < 0.01). The leptin concentration in follicular fluid was significantly higher in women with normal AMH level than in those with low or high levels. ROC curve analysis showed that the follicular fluid levels of leptin (area under ROC curve, 0.829; 95% confidence interval, 0.659-0.998; p < 0.01) and SCF (area under ROC curve, 0.706; 95% confidence interval, 0.491-0.921; p = 0.087) were the best predictors of oocyte maturity. At an optimal cut-off value of 16 ng/mL, leptin had positive predictive value (sensitivity) up to 70% and negative predictive value (specificity) of 91% for indicating oocyte maturity. The concentration of leptin in follicular fluid is closely related to ovarian reserve and may serve as a biomarker to predict oocyte maturity.
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14
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Zhou Y, Richard S, Batchelor NJ, Oorschot DE, Anderson GM, Pankhurst MW. Anti-Müllerian hormone-mediated preantral follicle atresia is a key determinant of antral follicle count in mice. Hum Reprod 2022; 37:2635-2645. [PMID: 36107143 PMCID: PMC9627584 DOI: 10.1093/humrep/deac204] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 08/23/2022] [Indexed: 07/21/2023] Open
Abstract
STUDY QUESTION Does anti-Müllerian hormone (AMH) induce preantral follicle atresia in mice? SUMMARY ANSWER The present findings suggest that AMH-mediated follicle atresia only occurs in early follicles before they become sensitive to FSH. WHAT IS KNOWN ALREADY Most prior studies have investigated the ability of AMH to inhibit primordial follicle activation. Our previous study showed that AMH-overexpressing mice had fewer preantral follicles than expected after accounting for primordial follicle inhibition but the reason for this was not determined. STUDY DESIGN, SIZE, DURATION Cross-sectional-control versus transgenic/knockout mouse studies were carried out. PARTICIPANTS/MATERIALS, SETTING, METHODS Studies were conducted on female wild-type (Amh+/+), AMH-knockout (Amh-/-) and AMH overexpressing (Thy1.2-AMHTg/0) mice on a C57Bl/6J background (age: 42-120 days). The follicle counts were conducted for primordial, transitioning, primary, secondary and antral follicles in Amh-/- and Amh+/+ mice. After confirming that follicle development speeds were identical (proliferating cell nuclear antigen immunohistochemistry), the ratio of follicles surviving beyond each stage of folliculogenesis was determined in both genotypes. Evidence for increased rates of preantral follicle atresia was assessed by active caspase-3 immunohistochemistry in wild-type and Thy1.2-AMHTg/0 mice. MAIN RESULTS AND THE ROLE OF CHANCE Amh -/- mice at 100-120 days of age had lower primordial follicle counts but higher primordial follicle activation rates compared to Amh+/+ mice. These counteracting effects led to equivalent numbers of primordial follicles transitioning to the primary stage in Amh+/+ and Amh-/- mice. Despite this, Amh+/+ mice had fewer primary, secondary, small antral and medium antral follicles than Amh-/- mice indicating differing rates of developing follicle atresia between genotypes. Cleaved caspase-3 immunohistochemistry in Thy1.2-AMHTg/0 ovaries revealed high rates of granulosa cell and oocyte apoptosis in late primary/early secondary follicles of Thy1.2-AMHTg/0 mice. LARGE SCALE DATA N/A. LIMITATIONS, REASONS FOR CAUTION The findings were shown only in one species and additional research will be required to determine generalizability to other species. WIDER IMPLICATIONS OF THE FINDINGS This study is consistent with prior studies showing that Amh-/- mice have increased primordial follicle activation but these new findings demonstrate that AMH-mediated preantral follicle atresia is a predominant cause of the increased small antral follicle counts in Amh-/- mice. This suggests that the role of AMH is not to conserve the ovarian reserve to prolong fertility, but instead to prevent the antral follicle pool from becoming too large. While this study may demonstrate a new function for AMH, the biological purpose of this function requires further investigation, particularly in mono-ovulatory species. STUDY FUNDING/COMPETING INTEREST(S) This study was funded by the Health Research Council of New Zealand and the University of Otago. No competing interests to declare.
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Affiliation(s)
- Y Zhou
- Department of Anatomy, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
| | - S Richard
- Department of Anatomy, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
| | - N J Batchelor
- Department of Anatomy, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
| | - D E Oorschot
- Department of Anatomy, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
- Brain Health Research Centre, University of Otago, Dunedin, New Zealand
| | - G M Anderson
- Department of Anatomy, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
- Centre for Neuroendocrinology, University of Otago, Dunedin, New Zealand
| | - M W Pankhurst
- Correspondence address. Department of Anatomy, University of Otago, PO Box 56, Dunedin 9054, New Zealand. Tel: +64-3-479-7440; E-mail:
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15
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Chen X, Tang Z, Guan H, Xia H, Gu C, Xu Y, Li B, Zhang W. Rapamycin maintains the primordial follicle pool and protects ovarian reserve against cyclophosphamide-induced damage. J Reprod Dev 2022; 68:287-294. [PMID: 35718464 PMCID: PMC9334315 DOI: 10.1262/jrd.2022-001] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2022] [Accepted: 05/25/2022] [Indexed: 11/20/2022] Open
Abstract
Any abnormal activation of primordial follicles and subsequent depletion can irreversibly diminish the ovarian reserve, which is one of the major chemotherapy-induced adverse effects in young patients with cancer. Herein, we investigated the effects of rapamycin on the activation and development of ovarian follicles to evaluate its fertility-sparing therapeutic value in a cyclophosphamide (CTX)-treated mouse model. Based on ovarian histomorphological changes and follicle counting in 50 SPF female C57BL/6 mice, daily administration of 5 mg/kg rapamycin for 30 days was deemed an ideal dosage and duration for administration in subsequent experiments. Compared with the control group, rapamycin treatment inhibited the activation of quiescent primordial follicles, with no obvious side effects observed. Finally, 48 mice were randomly divided into four groups: control, rapamycin-treated, cyclophosphamide-treated, and rapamycin intervention. Body weight, ovarian histomorphological changes, number of primordial follicles, DDX4/MVH expression, apoptosis of follicular cells, and expression of apoptosis protease-activating factor (APAF)-1, cleaved caspase 3, and caspase 3 were monitored. Co-administration of rapamycin reduced primordial follicle loss and the development of follicular cell apoptosis, thereby rescuing the ovarian reserve after CTX treatment. On analyzing the mTOR signaling pathway, we observed that rapamycin significantly decreased CTX-mediated overactivation of mTOR and its downstream molecules. These findings suggest that rapamycin exhibits potential as an ovarian-protective agent that could maintain the ovarian primordial follicle pool and preserve fertility in young female patients with cancer undergoing chemotherapy.
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Affiliation(s)
- Xiuying Chen
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
- Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai 200011, China
| | - Zhijing Tang
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
- Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai 200011, China
| | - Haiyun Guan
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
- Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai 200011, China
| | - Hexia Xia
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
| | - Chao Gu
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
| | - Yan Xu
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
| | - Bin Li
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
- Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai 200011, China
| | - Wei Zhang
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
- Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai 200011, China
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16
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Li B, Wang W, Huang Y, Han L, Li J, Zheng N, Wu Z, Zhang X, Li X, Deng L, Lin M, Chen X, Zhang M. Lithium treatment promotes the activation of primordial follicles through PI3K/Akt signaling. Biol Reprod 2022; 107:1059-1071. [PMID: 35871551 DOI: 10.1093/biolre/ioac150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2021] [Revised: 04/20/2022] [Accepted: 07/17/2022] [Indexed: 11/12/2022] Open
Abstract
Abstract
In mammals, dormant primordial follicles represent the ovarian reserve throughout reproductive life. In vitro activation of dormant primordial follicles has been used to treat patients with premature ovarian insufficiency (POI). However, there remains a lack of effective strategies to stimulate follicle activation in vivo. In this study, we used an in vitro ovarian culture system and intraperitoneal injection to study the effect of lithium treatment on primordial follicle activation. Lithium increased the number of growing follicles in cultured mouse ovaries and promoted pre-granulosa cell proliferation. Furthermore, lithium significantly increased the levels of phosphorylated protein kinase B (Akt) and the number of oocytes with forkhead Box O3a (FOXO3a) nuclear export. Inhibition of the phosphatidylinositol 3 kinase (PI3K)/Akt pathway by LY294002 reversed lithium-promoted mouse primordial follicle activation. These results suggest that lithium promotes mouse primordial follicle activation by the PI3K/Akt signaling. Lithium also promoted primordial follicle activation and increased the levels of p-Akt in mouse ovaries in vivo and in human ovarian tissue cultured in vitro. Taken together, lithium promotes primordial follicle activation in mice and humans by the PI3K/Akt signaling. Lithium might be a potential oral drug for treating infertility in POI patients with residual dormant primordial follicles.
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Affiliation(s)
- Biao Li
- State Key Laboratory for Agrobiotechnology , College of Biological Sciences, China Agricultural University, Beijing 100193 , China
- Division of Cell , Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou 510006 , China
| | - Weiyong Wang
- Division of Cell , Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou 510006 , China
| | - Yingying Huang
- Division of Cell , Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou 510006 , China
| | - Lincheng Han
- Division of Cell , Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou 510006 , China
| | - Jia Li
- State Key Laboratory for Agrobiotechnology , College of Biological Sciences, China Agricultural University, Beijing 100193 , China
- Division of Cell , Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou 510006 , China
| | - Nana Zheng
- State Key Laboratory for Agrobiotechnology , College of Biological Sciences, China Agricultural University, Beijing 100193 , China
- Division of Cell , Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou 510006 , China
| | - Zhanying Wu
- State Key Laboratory for Agrobiotechnology , College of Biological Sciences, China Agricultural University, Beijing 100193 , China
- Division of Cell , Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou 510006 , China
| | - Xiaodan Zhang
- State Key Laboratory for Agrobiotechnology , College of Biological Sciences, China Agricultural University, Beijing 100193 , China
- Division of Cell , Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou 510006 , China
| | - Xuelan Li
- The Center for Reproductive Medicine , Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), Foshan 528300, Guangdong , China
| | - Ling Deng
- The Center for Reproductive Medicine , Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), Foshan 528300, Guangdong , China
| | - Min Lin
- The Center for Reproductive Medicine , Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), Foshan 528300, Guangdong , China
| | - Xin Chen
- The Center for Reproductive Medicine , Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), Foshan 528300, Guangdong , China
| | - Meijia Zhang
- Division of Cell , Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou 510006 , China
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17
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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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18
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The process of ovarian aging: it is not just about oocytes and granulosa cells. J Assist Reprod Genet 2022; 39:783-792. [PMID: 35352316 PMCID: PMC9051003 DOI: 10.1007/s10815-022-02478-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Ovarian age is classically considered the main cause of female reproductive infertility. In women, the process proceeds as an ongoing decline in the primordial follicle stockpile and it is associated with reduced fertility in the mid-thirties, irregular menstruation from the mid-forties, cessation of fertility, and, eventually, menopause in the early fifties. Reproductive aging is historically associated with changes in oocyte quantity and quality. However, besides the oocyte, other cellular as well as environmental factors have been the focus of more recent investigations suggesting that ovarian decay is a complex and multifaceted process. Among these factors, we will consider mitochondria and oxidative stress as related to nutrition, changes in extracellular matrix molecules, and the associated ovarian stromal compartment where immune cells of both the native and adaptive systems seem to play an important role. Understanding such processes is crucial to design treatment strategies to slow down ovarian aging and consequently prolong reproductive lifespan and, more to this, alleviaingt side effects of menopause on the musculoskeletal, cardiovascular, and nervous systems.
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19
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Elgebaly MM, Hazaa ABM, Amer HA, Mesalam A. L-Cysteine improves bovine oocyte developmental competence in vitro via activation of oocyte-derived growth factors BMP-15 and GDF-9. Reprod Domest Anim 2022; 57:734-742. [PMID: 35313050 DOI: 10.1111/rda.14113] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 03/18/2022] [Indexed: 12/17/2022]
Abstract
This study was designed to investigate the effect of different concentrations of L-cysteine supplementation into the maturation medium on the oocyte nuclear maturation, cumulus cell expansion, ultrastructure of the oocytes and the expression of oocyte-derived growth factors BMP-15, GDF-9 and CB-1 genes. Cumulus oocyte complexes (COCs) were collected from cow's ovaries obtained from abattoir and incubated at 38.5°C in maturation media supplemented with 0, 0.6, 0.8 or 1 mM L-cysteine in 5% CO2 under humidified air for 24 hr. We found that a significantly higher percentage of oocytes progressed to metaphase II stage in the in vitro maturation (IVM) medium supplemented with L-cysteine, particularly 0.8 mM group, compared with untreated control oocytes. Additionally, L-cysteine treatment significantly increased the number of expanded COCs and the degree of expansion of individual COCs. Results of RT-qPCR showed significant increase in expression levels of BMP-15 and GDF-9 in L-cysteine-treated groups compared with control one. Electron microgram showed improvement of cytoplasmic maturation regarding ultrastructure of the oocytes and oocyte-cumulus cell gap junction communication in all L-cysteine-treated groups especially 0.8 mM L-cysteine-treated one. In conclusion, supplementation of IVM medium with a potential anti-oxidant, L-cysteine can effectively improve in vitro oocytes cytoplasmic and nuclear maturation via activation of oocyte maturation related BMP-15 and GDF-9 genes in bovine oocytes, benefiting the extended researches about the potential applications of L-cysteine in mammalian breeding technologies.
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Affiliation(s)
- Maha Mosad Elgebaly
- Department of Theriogenology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - Abo Bakr Maher Hazaa
- Department of Theriogenology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - Hussein Ahmed Amer
- Department of Theriogenology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - Ayman Mesalam
- Department of Theriogenology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
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20
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Abstract
Increasing evidence has demonstrated that obesity impairs female fertility and negatively affects human reproductive outcome following medically assisted reproduction (MAR) treatment. In the United States, 36.5% of women of reproductive age are obese. Obesity results not only in metabolic disorders including type II diabetes and cardiovascular disease, but might also be responsible for chronic inflammation and oxidative stress. Several studies have demonstrated that inflammation and reactive oxygen species (ROS) in the ovary modify steroidogenesis and might induce anovulation, as well as affecting oocyte meiotic maturation, leading to impaired oocyte quality and embryo developmental competence. Although the adverse effect of female obesity on human reproduction has been an object of debate in the past, there is growing evidence showing a link between female obesity and increased risk of infertility. However, further studies need to clarify some gaps in knowledge. We reviewed the recent evidence on the association between female obesity and infertility. In particular, we highlight the association between fat distribution and reproductive outcome, and how the inflammation and oxidative stress mechanisms might reduce ovarian function and oocyte quality. Finally, we evaluate the connection between female obesity and endometrial receptivity.
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21
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Ghezelayagh Z, Khoshdel-Rad N, Ebrahimi B. Human ovarian tissue in-vitro culture: primordial follicle activation as a new strategy for female fertility preservation. Cytotechnology 2022; 74:1-15. [PMID: 35185282 PMCID: PMC8816997 DOI: 10.1007/s10616-021-00510-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Accepted: 11/18/2021] [Indexed: 02/03/2023] Open
Abstract
Cryopreservation and transplantation of ovarian tissue is the only fertility preservation option used for prepubertal girls and women who don't have a chance for embryo or oocyte vitrification. For women with aggressive cancer, hormone-responsive malignancies, autoimmune diseases, etc. ovary transplantation cannot be performed so an alternative technology called in-vitro follicle activation is thinkable. In this method, dormant primordial follicles are activated from the resting primordial pool by in-vitro culture and enter their growth phase. Different in-vitro culture media and supplements in addition to various culturing methods have been conducted for activating these dormant follicles. Furthermore, several signaling pathways such as Hippo, phosphatidylinositol-3-kinase, and mTOR influence follicle activation. Therefore, the addition of different activators of these signaling pathways can beneficially regulate this culture system. This review summarizes the findings on different aspects of human ovarian tissue culture strategies for in-vitro follicular activation, their medium, and different factors involved in this activation. Afterward, signaling pathways important for follicle activation and their clinical applications towards improving activation in culture are also reviewed.
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Affiliation(s)
- Zeinab Ghezelayagh
- Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
- Department of Developmental Biology, Faculty of Basic Sciences and Advanced Technologies in Biology, University of Science and Culture, ACECR, Tehran, Iran
| | - Niloofar Khoshdel-Rad
- Department of Developmental Biology, Faculty of Basic Sciences and Advanced Technologies in Biology, University of Science and Culture, ACECR, Tehran, Iran
- Department of Stem Cell and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Bita Ebrahimi
- Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
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22
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Tao H, Yang J, Zhang P, Zhang N, Suo X, Li X, Liu Y, Chen M. Characterization of XR_311113.2 as a MicroRNA Sponge for Pre-ovulatory Ovarian Follicles of Goats via Long Noncoding RNA Profile and Bioinformatics Analysis. Front Genet 2022; 12:760416. [PMID: 35046999 PMCID: PMC8762113 DOI: 10.3389/fgene.2021.760416] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 12/10/2021] [Indexed: 12/24/2022] Open
Abstract
Long noncoding RNAs (lncRNAs) were identified recently as a large class of noncoding RNAs (ncRNAs) with a length ≥200 base pairs (bp). The function and mechanism of lncRNAs have been reported in a growing number of species and tissues. In contrast, the regulatory mechanism of lncRNAs in the goat reproductive system has rarely been reported. In the present study, we sequenced and analyzed the lncRNAs using bioinformatics to identify their expression profiles. As a result, 895 lncRNAs were predicted in the pre-ovulatory ovarian follicles of goats. Eighty-eight lncRNAs were differentially expressed in the Macheng black goat when compared with Boer goat. In addition, the lncRNA XR_311113.2 acted as a sponge of chi-miR-424-5p, as assessed via a luciferase activity assay. Taken together, our findings demonstrate that lncRNAs have potential effects in the ovarian follicles of goats and may represent a promising new research field to understand follicular development.
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Affiliation(s)
- Hu Tao
- Hubei Key Laboratory of Animal Embryo Engineering and Molecular Breeding, Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Sciences, Wuhan, China
| | - Juan Yang
- Hubei Key Laboratory of Animal Embryo Engineering and Molecular Breeding, Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Sciences, Wuhan, China
| | - Pengpeng Zhang
- Department of Biotechnology, College of Life Sciences, Xinyang Normal University, Xinyang, China
| | - Nian Zhang
- Hubei Key Laboratory of Animal Embryo Engineering and Molecular Breeding, Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Sciences, Wuhan, China
| | - Xiaojun Suo
- Hubei Key Laboratory of Animal Embryo Engineering and Molecular Breeding, Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Sciences, Wuhan, China
| | - Xiaofeng Li
- Hubei Key Laboratory of Animal Embryo Engineering and Molecular Breeding, Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Sciences, Wuhan, China
| | - Yang Liu
- Hubei Key Laboratory of Animal Embryo Engineering and Molecular Breeding, Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Sciences, Wuhan, China
| | - Mingxin Chen
- Hubei Key Laboratory of Animal Embryo Engineering and Molecular Breeding, Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Sciences, Wuhan, China
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A Single-Cell Omics Network Model of Cell Crosstalk during the Formation of Primordial Follicles. Cells 2022; 11:cells11030332. [PMID: 35159142 PMCID: PMC8834074 DOI: 10.3390/cells11030332] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 01/04/2022] [Accepted: 01/11/2022] [Indexed: 12/27/2022] Open
Abstract
The fate of fetal germ cells (FGCs) in primordial follicles is largely determined by how they interact with the surrounding granulosa cells. However, the molecular mechanisms underlying this interactive process remain poorly understood. Here, we develop a computational model to characterize how individual genes program and rewire cellular crosstalk across FGCs and somas, how gene regulatory networks mediate signaling pathways that functionally link these two cell types, and how different FGCs diversify and evolve through cooperation and competition during embryo development. We analyze single-cell RNA-seq data of human female embryos using the new model, identifying previously uncharacterized mechanisms behind follicle development. The majority of genes (70%) promote FGC–soma synergism, only with a small portion (4%) that incur antagonism; hub genes function reciprocally between the FGC network and soma network; and germ cells tend to cooperate between different stages of development but compete in the same stage within a developmental embryo. Our network model could serve as a powerful tool to unravel the genomic signatures that mediate folliculogenesis from single-cell omics data.
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Sun B, Yeh J. Onco-fertility and personalized testing for potential for loss of ovarian reserve in patients undergoing chemotherapy: proposed next steps for development of genetic testing to predict changes in ovarian reserve. FERTILITY RESEARCH AND PRACTICE 2021; 7:13. [PMID: 34193292 PMCID: PMC8244159 DOI: 10.1186/s40738-021-00105-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 05/19/2021] [Indexed: 12/29/2022]
Abstract
Women of reproductive age undergoing chemotherapy face the risk of irreversible ovarian insufficiency. Current methods of ovarian reserve testing do not accurately predict future reproductive potential for patients undergoing chemotherapy. Genetic markers that more accurately predict the reproductive potential of each patient undergoing chemotherapy would be critical tools that would be useful for evidence-based fertility preservation counselling. To assess the possible approaches to take to develop personalized genetic testing for these patients, we review current literature regarding mechanisms of ovarian damage due to chemotherapy and genetic variants associated with both the damage mechanisms and primary ovarian insufficiency. The medical literature point to a number of genetic variants associated with mechanisms of ovarian damage and primary ovarian insufficiency. Those variants that appear at a higher frequency, with known pathways, may be considered as potential genetic markers for predictive ovarian reserve testing. We propose developing personalized testing of the potential for loss of ovarian function for patients with cancer, prior to chemotherapy treatment. There are advantages of using genetic markers complementary to the current ovarian reserve markers of AMH, antral follicle count and day 3 FSH as predictors of preservation of fertility after chemotherapy. Genetic markers will help identify upstream pathways leading to high risk of ovarian failure not detected by present clinical markers. Their predictive value is mechanism-based and will encourage research towards understanding the multiple pathways contributing to ovarian failure after chemotherapy.
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Affiliation(s)
- Bei Sun
- Sackler School of Medicine, New York State/American Program of Tel Aviv University, Tel Aviv University, Ramat Aviv 69978, Tel Aviv, Israel
| | - John Yeh
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics & Gynecology, University of Massachusetts Medical School, UMass Memorial Medical Center, 119 Belmont Street, Worcester, MA, 01605, USA.
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Lv Y, Cao RC, Liu HB, Su XW, Lu G, Ma JL, Chan WY. Single-Oocyte Gene Expression Suggests That Curcumin Can Protect the Ovarian Reserve by Regulating the PTEN-AKT-FOXO3a Pathway. Int J Mol Sci 2021; 22:ijms22126570. [PMID: 34207376 PMCID: PMC8235657 DOI: 10.3390/ijms22126570] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 06/11/2021] [Accepted: 06/14/2021] [Indexed: 02/02/2023] Open
Abstract
A better understanding of the mechanism of primordial follicle activation will help us better understand the causes of premature ovarian insufficiency (POI), and will help us identify new drugs that can be applied to the clinical treatment of infertility. In this study, single oocytes were isolated from primordial and primary follicles, and were used for gene profiling with TaqMan array cards. Bioinformatics analysis was performed on the gene expression data, and Ingenuity Pathway Analysis was used to analyze and predict drugs that affect follicle activation. An ovarian in vitro culture system was used to verify the function of the drug candidates, and we found that curcumin maintains the ovarian reserve. Long-term treatment with 100 mg/kg curcumin improved the ovarian reserve indicators of AMH, FSH, and estradiol in aging mice. Mechanistic studies show that curcumin can affect the translocation of FOXO3, thereby inhibiting the PTEN-AKT-FOXO3a pathway and protecting primordial follicles from overactivation. These results suggest that curcumin is a potential drug for the treatment of POI patients and for fertility preservation.
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Affiliation(s)
- Yue Lv
- School of Basic Medical Sciences, Shandong University, Jinan 250012, China;
- CUHK-SDU Joint Laboratory on Reproductive Genetics, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China; (R.-C.C.); (H.-B.L.); (G.L.); (W.-Y.C.)
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan 250012, China;
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan 250012, China
| | - Rui-Can Cao
- CUHK-SDU Joint Laboratory on Reproductive Genetics, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China; (R.-C.C.); (H.-B.L.); (G.L.); (W.-Y.C.)
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan 250012, China;
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan 250012, China
| | - Hong-Bin Liu
- CUHK-SDU Joint Laboratory on Reproductive Genetics, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China; (R.-C.C.); (H.-B.L.); (G.L.); (W.-Y.C.)
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan 250012, China;
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan 250012, China
| | - Xian-Wei Su
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan 250012, China;
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan 250012, China
| | - Gang Lu
- CUHK-SDU Joint Laboratory on Reproductive Genetics, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China; (R.-C.C.); (H.-B.L.); (G.L.); (W.-Y.C.)
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan 250012, China;
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan 250012, China
| | - Jin-Long Ma
- School of Basic Medical Sciences, Shandong University, Jinan 250012, China;
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan 250012, China;
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan 250012, China
- Correspondence: ; Tel.: +86-0531-8565-1166
| | - Wai-Yee Chan
- CUHK-SDU Joint Laboratory on Reproductive Genetics, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China; (R.-C.C.); (H.-B.L.); (G.L.); (W.-Y.C.)
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan 250012, China;
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan 250012, China
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Frost ER, Ford EA, Peters AE, Reed NL, McLaughlin EA, Baker MA, Lovell-Badge R, Sutherland JM. Signal transducer and activator of transcription (STAT) 1 and STAT3 are expressed in the human ovary and have Janus kinase 1-independent functions in the COV434 human granulosa cell line. Reprod Fertil Dev 2021; 32:1027-1039. [PMID: 32758351 DOI: 10.1071/rd20098] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 06/29/2020] [Indexed: 01/03/2023] Open
Abstract
Ovarian granulosa cells are fundamental for oocyte maintenance and maturation. Recent studies have demonstrated the importance of members of the Janus kinase (JAK)/signal transducer and activator of transcription (STAT) signalling pathway in the granulosa cell population of mouse and horse ovaries, with perturbation of JAK1 signalling in the mouse shown to impair oocyte maintenance and accelerate primordial follicle activation. The presence and role of the JAK/STAT pathway in human granulosa cells has yet to be elucidated. In this study, expression of JAK1, STAT1 and STAT3 was detected in oocytes and granulosa cells of human ovarian sections from fetal (40 weeks gestation) and premenopausal ovaries (34-41 years of age; n=3). To determine the effects of JAK1 signalling in granulosa cells, the human granulosa-like cell line COV434 was used, with JAK1 inhibition using ruxolitinib. Chemical inhibition of JAK1 in COV434 cells with 100nM ruxolitinib for 72h resulted in significant increases in STAT3 mRNA (P=0.034) and p-Y701-STAT1 protein (P=0.0117), demonstrating a role for JAK1 in modulating STAT in granulosa cells. This study implicates a conserved role for JAK/STAT signalling in human ovary development, warranting further investigation of this pathway in human granulosa cell function.
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Affiliation(s)
- E R Frost
- Priority Research Centre for Reproductive Science, Schools of Biomedical Science and Pharmacy and Environmental and Life Sciences, University of Newcastle, University Drive, Callaghan, NSW 2308, Australia; and Hunter Medical Research Institute, Kookaburra Circuit, New Lambton Heights, NSW 2305, Australia; and Stem Cell Biology and Developmental Genetics Laboratory, The Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK; and Corresponding author.
| | - E A Ford
- Priority Research Centre for Reproductive Science, Schools of Biomedical Science and Pharmacy and Environmental and Life Sciences, University of Newcastle, University Drive, Callaghan, NSW 2308, Australia; and Hunter Medical Research Institute, Kookaburra Circuit, New Lambton Heights, NSW 2305, Australia
| | - A E Peters
- Priority Research Centre for Reproductive Science, Schools of Biomedical Science and Pharmacy and Environmental and Life Sciences, University of Newcastle, University Drive, Callaghan, NSW 2308, Australia; and Hunter Medical Research Institute, Kookaburra Circuit, New Lambton Heights, NSW 2305, Australia
| | - N L Reed
- Priority Research Centre for Reproductive Science, Schools of Biomedical Science and Pharmacy and Environmental and Life Sciences, University of Newcastle, University Drive, Callaghan, NSW 2308, Australia
| | - E A McLaughlin
- Priority Research Centre for Reproductive Science, Schools of Biomedical Science and Pharmacy and Environmental and Life Sciences, University of Newcastle, University Drive, Callaghan, NSW 2308, Australia; and School of Science, Western Sydney University, Penrith, NSW 2751, Australia; and School of Biological Sciences, Faculty of Science, University of Auckland, Auckland 1142, New Zealand
| | - M A Baker
- Priority Research Centre for Reproductive Science, Schools of Biomedical Science and Pharmacy and Environmental and Life Sciences, University of Newcastle, University Drive, Callaghan, NSW 2308, Australia; and Hunter Medical Research Institute, Kookaburra Circuit, New Lambton Heights, NSW 2305, Australia
| | - R Lovell-Badge
- Stem Cell Biology and Developmental Genetics Laboratory, The Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK
| | - J M Sutherland
- Priority Research Centre for Reproductive Science, Schools of Biomedical Science and Pharmacy and Environmental and Life Sciences, University of Newcastle, University Drive, Callaghan, NSW 2308, Australia; and Hunter Medical Research Institute, Kookaburra Circuit, New Lambton Heights, NSW 2305, Australia
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Effect of dietary supplementation with nettle or fenugreek on folliculogenesis and steroidogenesis in the rabbit ovary - An in vivo study. Theriogenology 2021; 173:1-11. [PMID: 34126406 DOI: 10.1016/j.theriogenology.2021.06.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 05/26/2021] [Accepted: 06/02/2021] [Indexed: 11/21/2022]
Abstract
The objective of the study was to investigate the effect of dietary supplementation with nettle or fenugreek on folliculogenesis and steroidogenesis in the juvenile rabbit ovary. To gain insight into the mechanism of action of these herbs, we examined follicle formation, ovarian cell proliferation and apoptosis, steroidogenic enzyme abundance and steroid concentrations in ovarian tissue and plasma. Animals were fed with control, 1% nettle- or 1% fenugreek-supplemented pellets from 5 to 12 weeks of age (n = 10 per each group), when animals were slaughtered for ovary and blood collection. The addition of nettle decreased the numbers of primordial (P = 0.015) and early antral (P = 0.02) follicles and increased the number of primary (P = 0.04) ones when compared with the control group. Following fenugreek supplementation, the numbers of primary (P = 0.008) and antral (P = 0.027) follicles were greater, while the number of early antral (P = 0.003) follicles was lower in comparison with the control group. Nettle revealed apoptotic activity through activation of caspases 9 (P = 0.047), 8 (P = 0.022) and 3 (P = 0.004), whereas fenugreek increased (P = 0.042) follicular cell proliferation marked by PCNA protein abundance. Furthermore, only fenugreek targeted steroidogenic enzymes, decreasing CYP17A1 (P = 0.043) and increasing CYP19A1 (P = 0.048) protein abundances that resulted in enhanced estradiol biosynthesis and its elevated (P = 0.006) plasma concentration. In conclusion, both herbs affected follicle development in the rabbit ovary in a stage specific manner. Additionally, fenugreek altered ovarian steroidogenesis in a way that might affect sexual maturation in rabbits.
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28
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Frost ER, Taylor G, Baker MA, Lovell-Badge R, Sutherland JM. Establishing and maintaining fertility: the importance of cell cycle arrest. Genes Dev 2021; 35:619-634. [PMID: 33888561 PMCID: PMC8091977 DOI: 10.1101/gad.348151.120] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
In this review, Frost et al. summarize the current knowledge on the Cip/Kip family of cyclin-dependent kinase inhibitors in mouse gonad development and highlight new roles for cell cycle inhibitors in controlling and maintaining female fertility. Development of the ovary or testis is required to establish reproductive competence. Gonad development relies on key cell fate decisions that occur early in embryonic development and are actively maintained. During gonad development, both germ cells and somatic cells proliferate extensively, a process facilitated by cell cycle regulation. This review focuses on the Cip/Kip family of cyclin-dependent kinase inhibitors (CKIs) in mouse gonad development. We particularly highlight recent single-cell RNA sequencing studies that show the heterogeneity of cyclin-dependent kinase inhibitors. This diversity highlights new roles for cell cycle inhibitors in controlling and maintaining female fertility.
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Affiliation(s)
- Emily R Frost
- Priority Research Centre for Reproductive Science, School of Biomedical Science and Pharmacy, School of Environmental and Life Sciences, University of Newcastle, Callaghan, New South Wales 2308, Australia.,Hunter Medical Research Institute, New Lambton Heights, New South Wales 2305, Australia.,Stem Cell Biology and Developmental Genetics Laboratory, The Francis Crick Institute, London NW1 1AT, United Kingdom
| | - Güneş Taylor
- Stem Cell Biology and Developmental Genetics Laboratory, The Francis Crick Institute, London NW1 1AT, United Kingdom
| | - Mark A Baker
- Priority Research Centre for Reproductive Science, School of Biomedical Science and Pharmacy, School of Environmental and Life Sciences, University of Newcastle, Callaghan, New South Wales 2308, Australia.,Hunter Medical Research Institute, New Lambton Heights, New South Wales 2305, Australia
| | - Robin Lovell-Badge
- Stem Cell Biology and Developmental Genetics Laboratory, The Francis Crick Institute, London NW1 1AT, United Kingdom
| | - Jessie M Sutherland
- Priority Research Centre for Reproductive Science, School of Biomedical Science and Pharmacy, School of Environmental and Life Sciences, University of Newcastle, Callaghan, New South Wales 2308, Australia.,Hunter Medical Research Institute, New Lambton Heights, New South Wales 2305, Australia
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29
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Cafe SL, Nixon B, Ecroyd H, Martin JH, Skerrett-Byrne DA, Bromfield EG. Proteostasis in the Male and Female Germline: A New Outlook on the Maintenance of Reproductive Health. Front Cell Dev Biol 2021; 9:660626. [PMID: 33937261 PMCID: PMC8085359 DOI: 10.3389/fcell.2021.660626] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 03/22/2021] [Indexed: 01/07/2023] Open
Abstract
For fully differentiated, long lived cells the maintenance of protein homeostasis (proteostasis) becomes a crucial determinant of cellular function and viability. Neurons are the most well-known example of this phenomenon where the majority of these cells must survive the entire course of life. However, male and female germ cells are also uniquely dependent on the maintenance of proteostasis to achieve successful fertilization. Oocytes, also long-lived cells, are subjected to prolonged periods of arrest and are largely reliant on the translation of stored mRNAs, accumulated during the growth period, to support meiotic maturation and subsequent embryogenesis. Conversely, sperm cells, while relatively ephemeral, are completely reliant on proteostasis due to the absence of both transcription and translation. Despite these remarkable, cell-specific features there has been little focus on understanding protein homeostasis in reproductive cells and how/whether proteostasis is "reset" during embryogenesis. Here, we seek to capture the momentum of this growing field by highlighting novel findings regarding germline proteostasis and how this knowledge can be used to promote reproductive health. In this review we capture proteostasis in the context of both somatic cell and germline aging and discuss the influence of oxidative stress on protein function. In particular, we highlight the contributions of proteostasis changes to oocyte aging and encourage a focus in this area that may complement the extensive analyses of DNA damage and aneuploidy that have long occupied the oocyte aging field. Moreover, we discuss the influence of common non-enzymatic protein modifications on the stability of proteins in the male germline, how these changes affect sperm function, and how they may be prevented to preserve fertility. Through this review we aim to bring to light a new trajectory for our field and highlight the potential to harness the germ cell's natural proteostasis mechanisms to improve reproductive health. This manuscript will be of interest to those in the fields of proteostasis, aging, male and female gamete reproductive biology, embryogenesis, and life course health.
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Affiliation(s)
- Shenae L. Cafe
- Priority Research Centre for Reproductive Science, Faculty of Science, The University of Newcastle, Callaghan, NSW, Australia
| | - Brett Nixon
- Priority Research Centre for Reproductive Science, Faculty of Science, The University of Newcastle, Callaghan, NSW, Australia
| | - Heath Ecroyd
- Molecular Horizons, School of Chemistry and Molecular Bioscience, University of Wollongong, Wollongong, NSW, Australia
- Illawarra Health and Medical Research Institute, Wollongong, NSW, Australia
| | - Jacinta H. Martin
- Department of Human Genetics, McGill University Health Centre Research Institute, Montreal, QC, Canada
| | - David A. Skerrett-Byrne
- Priority Research Centre for Reproductive Science, Faculty of Science, The University of Newcastle, Callaghan, NSW, Australia
| | - Elizabeth G. Bromfield
- Priority Research Centre for Reproductive Science, Faculty of Science, The University of Newcastle, Callaghan, NSW, Australia
- Department of Biochemistry and Cell Biology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands
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30
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Zhao C, Bai Y, Fu S, Wu L, Xia C, Xu C. Comparison of Metabolic Alterations in Serum and Milk Whey Between Inactive Ovaries and Estrus Dairy Cows. Front Vet Sci 2021; 7:609391. [PMID: 33521083 PMCID: PMC7841113 DOI: 10.3389/fvets.2020.609391] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 11/16/2020] [Indexed: 01/28/2023] Open
Abstract
Inactive ovaries (IOs) affect the estrus cycle and timed artificial insemination (TAI) efficiency in dairy cows during early lactation. The objective of the experiment was to determine metabolic changes in the serum and milk whey of dairy cows with IO and estrus. Twenty-eight healthy postpartum Holstein cows in similar age, milk production, and body condition were selected at 30 days postpartum for tracking to 70 days postpartum, and estrus performance was recorded through Afi Farm® software. The ovarian status and follicular diameter of dairy cows were examined by an experienced breeder through B-ultrasound and rectal examination. Fourteen normal estrus cows were allocated to control group A and 14 cows with IO to group B, all at 30–70 days postpartum. The serum and milk whey in the two groups of cows at 70 days postpartum were used for non-targeted nuclear magnetic resonance (1H-NMR) analysis to measure the different metabolites of cows with IO. In group B compared with group A at 70 days postpartum, there was an increase in the milk whey of six different metabolites including succinate, creatine phosphate, glycine, myo-inositol, glycolate, and orotate and a decrease in the milk whey of seven metabolites, including alanine, creatinine, o-phosphorylcholine, lactose, taurine, galactose, and glucose-1-phosphate. There was an increase in the serum of group B cows of four differential metabolites, including 3-hydroxybutyrate, acetate, glutamine, and glycine and a decrease in the serum of nine differential metabolites, including alanine, succinate, citrate, creatinine, o-phosphocholine, glucose, myo-inositol, tyrosine, and histidine compared with group A. Group B cows with IO had decreased glucose metabolism and impaired tricarboxylic acid cycle, increased lipid mobilization, and abnormal amino acid metabolism. The study provides a potential prevention strategy for IO in dairy cows in future.
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Affiliation(s)
- Chang Zhao
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Yunlong Bai
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Shixin Fu
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, China.,Heilongjiang Provincial Technology Innovation Center for Bovine Disease Control and Prevention, Daqing, China
| | - Ling Wu
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Cheng Xia
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Chuang Xu
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, China
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31
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Liu W, Zhang J, Wang L, Liang S, Xu B, Ying X, Li J. The protective effects of rapamycin pretreatment on ovarian damage during ovarian tissue cryopreservation and transplantation. Biochem Biophys Res Commun 2021; 534:780-786. [PMID: 33162031 DOI: 10.1016/j.bbrc.2020.10.110] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 10/29/2020] [Indexed: 12/21/2022]
Abstract
Ovarian tissue cryopreservation and transplantation (OCT) has been sufficiently proven effective and feasible to preserve fertility for women especially for prepubertal girls suffering from cancer with radiotherapy and chemotherapy. However, grafts' survival, significant follicle loss and a delay of revascularization during OCT still need to be resolved no matter what kind of cryopreserved method being used. Different from previous reports about additives treatment on recipient after ovarian transplantation, we here report a new vitrification protocol with pretreatment of rapamycin, an inhibitor of the mTOR signaling pathway. The rapamycin treatment has been shown to inhibit the activation of mTOR signaling pathway in fresh thawed ovaries or in ovaries shortly grafted in the recipient mice. Further study revealed increased percentage of primordial follicles and reduced apoptosis after 5 days of transplantation. Long-term follow up of ovarian development demonstrated the increase of ovarian survival rates in rapamycin treated ovaries after 2 weeks of transplantation. Although follicular development showed a slight delay with more secondary and early antral follicles found in rapamycin treated ovaries, follicular development was not blocked as manifested by the ovarian morphology after 5 weeks of transplantation. Taken together, the pretreatment of rapamycin before vitrification is a good method for clinical application with its effectiveness on preserving follicle reserve and promoting ovarian survival during the process of OCT.
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Affiliation(s)
- Wei Liu
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 210025, China
| | - Jing Zhang
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 210025, China
| | - Lu Wang
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 210025, China
| | - Shenglian Liang
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Boqun Xu
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Xiaoyan Ying
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China.
| | - Jing Li
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 210025, China.
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An R, Wang X, Yang L, Zhang J, Wang N, Xu F, Hou Y, Zhang H, Zhang L. Polystyrene microplastics cause granulosa cells apoptosis and fibrosis in ovary through oxidative stress in rats. Toxicology 2020; 449:152665. [PMID: 33359712 DOI: 10.1016/j.tox.2020.152665] [Citation(s) in RCA: 152] [Impact Index Per Article: 38.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 12/06/2020] [Accepted: 12/20/2020] [Indexed: 12/11/2022]
Abstract
Microplastics (MPs) are receiving increased attention as a harmful environmental pollutant. Studies have investigated that MPs have reproductive toxicity, but the mechanism is little known. Here, we aimed to investigate the effects of polystyrene microplastics (PS-MPs) on ovary in rats and the underlying molecular mechanisms. in vivo, thirty-two female Wistar rats were exposed to 0.5 μm PS-MPs at different concentrations (0, 0.015, 0.15 and 1.5 mg/d) for 90 days. And then, all animals were sacrificed, ovaries and blood were collected for testing. in vitro, granulosa cells (GCs) were separated from rat ovary and treated with 0、1、5、25 μg/mL PS-MPs and reactive oxygen species (ROS) inhibitor N-Acetyl-l-cysteine (NAC) respectively. Our results showed that PS-MPs could enter into GCs and result in the reducing of growing follicles number. And the Enzyme-linked immunosorbent assay (ELISA) manifested that PS-MPs could obviously decrease the level of anti-Müllerian hormone (AMH). In addition, PS-MPs induced oxidative stress, apoptosis of GCs and ovary fibrosis evidenced by assay kits, flow cytometry, immunohistochemistry, Masson's trichrome and Sirius red staining. Moreover, the western blot assay manifested that PS-MPs exposure significantly increased the expression levels of Wnt/β-Catenin signaling pathways-related proteins (Wnt, β-catenin, p-β-catenin) and the main fibrosis markers (transforming growth factor-β (TGF-β), fibronectin, α-smooth muscle actin (α-SMA). Additionally, the expression levels of Wnt and p-β-catenin, apoptosis of GCs decreased after NAC treatment. In summary, polystyrene microplastics cause fibrosis via Wnt/β-Catenin signaling pathway activation and granulosa cells apoptosis of ovary through oxidative stress in rats, both of which ultimately resulted in decrease of ovarian reserve capacity.
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Affiliation(s)
- Ru An
- College of Clinical Medicine, Bin Zhou Medical University, Yan Tai, PR China
| | - Xifeng Wang
- Department of Critical Care Medicine, Yu Huang Ding Hospital, Qingdao University, Yantai, PR China
| | - Long Yang
- College of Clinical Medicine, Bin Zhou Medical University, Yan Tai, PR China
| | - Jinjin Zhang
- Medicine and Pharmacy Research Center, Binzhou Medical University, Yantai, PR China
| | - Nana Wang
- College of Clinical Medicine, Bin Zhou Medical University, Yan Tai, PR China
| | - Feibo Xu
- Department of Histology and Embryology, Binzhou Medical University, Yantai, PR China; College of Basic Medicine & Xu Rongxiang Regenerative Medicine Research Center, Binzhou Medical University, Yantai, PR China
| | - Yun Hou
- Department of Histology and Embryology, Binzhou Medical University, Yantai, PR China; College of Basic Medicine & Xu Rongxiang Regenerative Medicine Research Center, Binzhou Medical University, Yantai, PR China
| | - Hongqin Zhang
- Department of Histology and Embryology, Binzhou Medical University, Yantai, PR China; College of Basic Medicine & Xu Rongxiang Regenerative Medicine Research Center, Binzhou Medical University, Yantai, PR China
| | - Lianshuang Zhang
- Department of Histology and Embryology, Binzhou Medical University, Yantai, PR China; College of Basic Medicine & Xu Rongxiang Regenerative Medicine Research Center, Binzhou Medical University, Yantai, PR China.
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33
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Nadesapillai S, van der Velden J, Smeets D, van de Zande G, Braat D, Fleischer K, Peek R. Why are some patients with 45,X Turner syndrome fertile? A young girl with classical 45,X Turner syndrome and a cryptic mosaicism in the ovary. Fertil Steril 2020; 115:1280-1287. [PMID: 33342535 DOI: 10.1016/j.fertnstert.2020.11.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 11/03/2020] [Accepted: 11/04/2020] [Indexed: 02/07/2023]
Abstract
OBJECTIVE To report a case of a young girl initially diagnosed with exclusively 45,X Turner syndrome (TS), but with a cryptic mosaicism in the ovary. DESIGN Case report. SETTING Radboud University Medical Center in the Netherlands. PATIENT(S) A 14-year-old girl with TS showing an exclusively 45,X cell line in lymphocytes, buccal cells, and urine cells in the presence of ovarian follicles. INTERVENTION(S) Laparoscopic unilateral oophorectomy was performed to obtain ovarian cortex tissue for fertility preservation purposes. One cortex fragment was used to determine the number of follicles by serial sectioning and staining, to perform fluorescence in situ hybridization (FISH) analysis and an in vitro growth (IVG) assay. MAIN OUTCOME MEASURE(S) FISH analysis of ovarian cells and the capacity of unilaminar follicles to develop to secondary follicles. RESULT(S) FISH analysis revealed that most oocytes had a normal tetraploid X chromosomal content, the stromal cell compartment had both 45,X and 47,XXX cell lines, and all follicular granulosa cells had a 45,X karyotype. IVG assay showed that unilaminar follicles were capable of maturing to secondary follicles, but that the granulosa layers and membrana granulosa were distorted. CONCLUSION(S) We report a case where follicles were found in a girl with monosomic TS, in the presence of a cryptic mosaicism. Karyotyping of extraovarian cells was not predictive of the karyotype of ovarian cells in the same patient. Despite the presence of normal oocytes, our observation that all analyzed follicles contained exclusively 45,X granulosa cells embedded in mosaic 45,X/47,XXX stromal tissue may have functional consequences for follicular development. CLINICAL TRIAL REGISTRATION NUMBER NCT03381300.
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Affiliation(s)
- Sapthami Nadesapillai
- Department of Obstetrics and Gynecology, Radboud University Medical Center, Nijmegen, The Netherlands.
| | | | - Dominique Smeets
- Department of Human Genetics, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Guillaume van de Zande
- Department of Human Genetics, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Didi Braat
- Department of Obstetrics and Gynecology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Kathrin Fleischer
- Department of Obstetrics and Gynecology, Radboud University Medical Center, Nijmegen, The Netherlands; The Fertility Partnership-VivaNeo Center of Reproductive Medicine, Düsseldorf, Germany
| | - Ronald Peek
- Department of Obstetrics and Gynecology, Radboud University Medical Center, Nijmegen, The Netherlands
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Grosbois J, Devos M, Demeestere I. Implications of Nonphysiological Ovarian Primordial Follicle Activation for Fertility Preservation. Endocr Rev 2020; 41:5882019. [PMID: 32761180 DOI: 10.1210/endrev/bnaa020] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Accepted: 07/31/2020] [Indexed: 02/06/2023]
Abstract
In recent years, ovarian tissue cryopreservation has rapidly developed as a successful method for preserving the fertility of girls and young women with cancer or benign conditions requiring gonadotoxic therapy, and is now becoming widely recognized as an effective alternative to oocyte and embryo freezing when not feasible. Primordial follicles are the most abundant population of follicles in the ovary, and their relatively quiescent metabolism makes them more resistant to cryoinjury. This dormant pool represents a key target for fertility preservation strategies as a resource for generating high-quality oocytes. However, development of mature, competent oocytes derived from primordial follicles is challenging, particularly in larger mammals. One of the main barriers is the substantial knowledge gap regarding the regulation of the balance between dormancy and activation of primordial follicles to initiate their growing phase. In addition, experimental and clinical factors also affect dormant follicle demise, while the mechanisms involved remain largely to be elucidated. Moreover, most of our basic knowledge of these processes comes from rodent studies and should be extrapolated to humans with caution, considering the differences between species in the reproductive field. Overcoming these obstacles is essential to improving both the quantity and the quality of mature oocytes available for further fertilization, and may have valuable biological and clinical applications, especially in fertility preservation procedures. This review provides an update on current knowledge of mammalian primordial follicle activation under both physiological and nonphysiological conditions, and discusses implications for fertility preservation and priorities for future research.
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Affiliation(s)
- Johanne Grosbois
- Research Laboratory in Human Reproduction, Université Libre de Bruxelles, Brussels, Belgium.,Institute of Cell Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, UK
| | - Melody Devos
- Research Laboratory in Human Reproduction, Université Libre de Bruxelles, Brussels, Belgium
| | - Isabelle Demeestere
- Research Laboratory in Human Reproduction, Université Libre de Bruxelles, Brussels, Belgium.,Obstetrics and Gynecology Department, Erasme Hospital, Brussels, Belgium
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35
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Devenutto L, Quintana R, Quintana T. In vitro activation of ovarian cortex and autologous transplantation: A novel approach to primary ovarian insufficiency and diminished ovarian reserve. Hum Reprod Open 2020; 2020:hoaa046. [PMID: 33225075 PMCID: PMC7668396 DOI: 10.1093/hropen/hoaa046] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 07/26/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Primary ovarian insufficiency (POI) and diminished ovarian reserve are two conditions that affect women’s fertility. Oocyte donation remains an option for these patients; however, the development of certain novel technologies, such as in vitro activation of ovarian cortex (IVA), enables the possibility of activating the pool of resting primordial follicles, increasing the chance of pregnancy. OBJECTIVE AND RATIONALE Here, we review the main pathways (PI3K and Hippo signaling) that govern the activation of primordial follicles and its application through the development of culture systems that support ovarian cortex for autologous transplantation. We also review the available data from case reports regarding outcomes of pregnancy and live birth rates with IVA. SEARCH METHODS A PubMed search was conducted using the PubMed-NCBI database to identify literature pertinent to the pathways involved in the activation of primordial follicles and the outcomes of IVA techniques from 2013 to the present. OUTCOMES Women with POI have around a 5% chance of spontaneous pregnancy. Recently, novel techniques involving the activation of primordial follicles through molecular pathways have been developed, thus increasing the odds of these patients. More recently, the introduction of a drug-free IVA technique has shown to increase the number of antral follicles with successful oocyte maturation after gonadotropin treatment, reaching pregnancy rates over 30%, either through spontaneous conception or by the implementation of assisted reproductive technology. LIMITATIONS The evidence of this review is based on a few small series, so data should be interpreted with caution, and only randomized controlled trials could estimate the real magnitude and success of the procedure. REASONS FOR CAUTION IVA technique remains an experimental strategy, with limited available data and the requirement of invasive procedures. Moreover, possible carcinogenic effects not yet determined after transplantation require special caution. WIDER IMPLICATIONS In view of the results achieved, IVA could provide a promising option for the preservation of fertility in some cancer patients and prepuberal girls where the only alternative is tissue cryopreservation. STUDY FUNDING/COMPETING INTERESTS The authors received no specific funding for this work and declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
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Affiliation(s)
- L Devenutto
- Reproductive Medicine Service, "Procrearte", Institution Affiliated with the University of Buenos Aires (UBA), Buenos Aires, Argentina
| | - R Quintana
- Reproductive Medicine Service, "Procrearte", Institution Affiliated with the University of Buenos Aires (UBA), Buenos Aires, Argentina
| | - T Quintana
- Reproductive Medicine Service, "Procrearte", Institution Affiliated with the University of Buenos Aires (UBA), Buenos Aires, Argentina
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36
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Sarma UC, Winship AL, Hutt KJ. Comparison of methods for quantifying primordial follicles in the mouse ovary. J Ovarian Res 2020; 13:121. [PMID: 33054849 PMCID: PMC7560236 DOI: 10.1186/s13048-020-00724-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 10/01/2020] [Indexed: 12/29/2022] Open
Abstract
Background Accurate evaluation of primordial follicle numbers in mouse ovaries is an essential endpoint for studies investigating how endogenous and exogenous insults, such as maternal aging and chemotherapy, impact the ovarian reserve. In this study, we compared and contrasted two methods for counting healthy primordial follicles following exposure to cyclophosphamide (75 mg/kg), a well-established model of follicle depletion. The first was the fractionator/optical dissector technique, an unbiased, assumption-free stereological approach for quantification of primordial follicle numbers. While accurate, highly reproducible and sensitive, this method relies on specialist microscopy equipment and software, requires specific fixation, embedding and sectioning parameters to be followed, and is largely a manual process that is tedious and time-consuming. The second method was the more widely used serial section and direct count approach, which is relatively quick and easy. We also compared the impacts of different fixatives, embedding material and section thickness on the overall results for each method. Results Direct counts resulted in primordial follicle numbers that were significantly lower than those obtained by stereology, irrespective of fixation and embedding material. When applied to formalin fixed tissue, the direct count method did not detect differences in follicle numbers between saline and cyclophosphamide treated groups to the same degree of sensitivity as the gold standard stereology method (referred to as the Reference standard). However, when Bouin’s fixative was used, direct counts and stereology were comparable in their ability to detect follicle depletion caused by cyclophosphamide. Conclusions This work indicates that the direct count method can produce similar results to stereology when Bouin’s fixative is used instead of formalin. The findings presented here will assist others to select the most appropriate experimental approach for accurate follicle enumeration, depending on whether the primary objective of the study is to determine absolute primordial follicle numbers or relative differences between groups.
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Affiliation(s)
- Urooza C Sarma
- Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Level 3, Building 76, 19 Innovation walk, Clayton, VIC, 3800, Australia.,Department of Anatomy and Developmental Biology, Monash University, Level 3, Building 76, 19 Innovation walk, Clayton, VIC, 3800, Australia
| | - Amy L Winship
- Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Level 3, Building 76, 19 Innovation walk, Clayton, VIC, 3800, Australia.,Department of Anatomy and Developmental Biology, Monash University, Level 3, Building 76, 19 Innovation walk, Clayton, VIC, 3800, Australia
| | - Karla J Hutt
- Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Level 3, Building 76, 19 Innovation walk, Clayton, VIC, 3800, Australia. .,Department of Anatomy and Developmental Biology, Monash University, Level 3, Building 76, 19 Innovation walk, Clayton, VIC, 3800, Australia.
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37
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Peek R, Schleedoorn M, Smeets D, van de Zande G, Groenman F, Braat D, van der Velden J, Fleischer K. Ovarian follicles of young patients with Turner's syndrome contain normal oocytes but monosomic 45,X granulosa cells. Hum Reprod 2020; 34:1686-1696. [PMID: 31398245 PMCID: PMC6736193 DOI: 10.1093/humrep/dez135] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 06/21/2019] [Accepted: 06/27/2019] [Indexed: 12/12/2022] Open
Abstract
STUDY QUESTION What is the X chromosomal content of oocytes and granulosa cells of primordial/primary (small) follicles and stromal cells in ovaries of young patients with Turner's syndrome (TS)? SUMMARY ANSWER Small ovarian follicles were detected in one-half of the patients studied, and X chromosome analysis revealed that most oocytes were normal, granulosa cells were largely monosomic, while stromal cells showed a high level of mosaicism. WHAT IS KNOWN ALREADY Most women with TS experience a premature reduction or complete loss of fertility due to an accelerated loss of gametes. To determine whether fertility preservation in this group of patients is feasible, there is a strong need for information on the X chromosomal content of ovarian follicular and stromal cells. STUDY DESIGN, SIZE, DURATION Small follicles (<50 μm) and stromal cells were isolated from ovarian tissue of young TS patients and analysed for their X chromosomal content. In addition to ovarian cells, several other cell types from the same patients were analysed. PARTICIPANTS/MATERIALS, SETTING, METHODS After unilateral ovariectomy, ovarian cortex tissue was obtained from 10 TS patients (aged 2-18 years) with numerical abnormalities of the X chromosome. Ovarian cortex fragments were prepared and cryopreserved. One fragment from each patient was thawed and enzymatically digested to obtain stromal cells and primordial/primary follicles. Stromal cells, granulosa cells and oocytes were analysed by FISH using an X chromosome-specific probe. Extra-ovarian cells (lymphocytes, buccal cells and urine cells) of the same patients were also analysed by FISH. Ovarian tissue used as control was obtained from individuals undergoing oophorectomy as part of their gender affirming surgery. MAIN RESULTS AND THE ROLE OF CHANCE Ovarian follicles were detected in 5 of the 10 patients studied. A method was developed to determine the X chromosomal content of meiosis I arrested oocytes from small follicles. This revealed that 42 of the 46 oocytes (91%) that were analysed had a normal X chromosomal content. Granulosa cells were largely 45,X but showed different levels of X chromosome mosaicism between patients and between follicles of the same patient. Despite the presence of a low percentage (10-45%) of 46,XX ovarian cortex stromal cells, normal macroscopic ovarian morphology was observed. The level of mosaicism in lymphocytes, buccal cells or urine-derived cells was not predictive for mosaicism in ovarian cells. LIMITATIONS, REASONS FOR CAUTION The results are based on a small number (n = 5) of TS patient samples but provide evidence that the majority of oocytes have a normal X chromosomal content and that follicles from the same patient can differ with respect to the level of mosaicism of their granulosa cells. The functional consequences of these observations require further investigation. WIDER IMPLICATIONS OF THE FINDINGS The results indicate that despite normal ovarian and follicular morphology, stromal cells and granulosa cells of small follicles in patients with TS may display a high level of mosaicism. Furthermore, the level of mosaicism in ovarian cells cannot be predicted from the analysis of extra-ovarian tissue. These findings should be considered by physicians when offering cryopreservation of ovarian tissue as an option for fertility preservation in young TS patients. STUDY FUNDING/COMPETING INTEREST(S) Unconditional funding was received from Merck B.V. The Netherlands (Number A16-1395) and the foundation 'Radboud Oncologie Fonds' (Number KUN 00007682). The authors have no conflicts of interest. TRIAL REGISTRATION NUMBER NCT03381300.
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Affiliation(s)
- Ronald Peek
- Department of Obstetrics and Gynecology, Radboud University Medical Center, PO Box 9101, 6500 HB Nijmegen, The Netherlands
| | - Myra Schleedoorn
- Department of Obstetrics and Gynecology, Radboud University Medical Center, PO Box 9101, 6500 HB Nijmegen, The Netherlands
| | - Dominique Smeets
- Department of Human Genetics, Radboud University Medical Center, PO Box 9101, 6500 HB Nijmegen, The Netherlands
| | - Guillaume van de Zande
- Department of Human Genetics, Radboud University Medical Center, PO Box 9101, 6500 HB Nijmegen, The Netherlands
| | - Freek Groenman
- Amsterdam UMC, Vrije Universiteit Amsterdam, Obstetrics and Gynecology, Amsterdam Reproduction and Development, De Boelelaan 1117 Amsterdam, The Netherlands
| | - Didi Braat
- Department of Obstetrics and Gynecology, Radboud University Medical Center, PO Box 9101, 6500 HB Nijmegen, The Netherlands
| | - Janielle van der Velden
- Amalia Children's Hospital, Radboud University Medical Center, PO Box 9101, 6500 HB Nijmegen, The Netherlands
| | - Kathrin Fleischer
- Department of Obstetrics and Gynecology, Radboud University Medical Center, PO Box 9101, 6500 HB Nijmegen, The Netherlands
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38
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Zhang M, Bener MB, Jiang Z, Wang T, Esencan E, Scott R, Horvath T, Seli E. Mitofusin 2 plays a role in oocyte and follicle development, and is required to maintain ovarian follicular reserve during reproductive aging. Aging (Albany NY) 2020; 11:3919-3938. [PMID: 31204316 PMCID: PMC6628992 DOI: 10.18632/aging.102024] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 06/08/2019] [Indexed: 02/07/2023]
Abstract
Mitochondria change their shape through fusion and fission in order to adapt to their metabolic milieu. Mitofusin-2 (MFN2) is a key regulatory protein in this process, mediating mitochondrial fusion and interaction with endoplasmic reticulum. Targeted deletion of Mfn2 in oocytes resulted in mitochondrial dysfunction and female subfertility associated with impaired oocyte maturation and follicle development. Oocytes lacking MFN2 showed shortened telomeres and increased apoptosis, resulting in compromised oocyte quality and accelerated follicular depletion, consistent with a reproductive aging phenotype.
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Affiliation(s)
- Man Zhang
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT 06510, USA
| | - Muhammed Burak Bener
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT 06510, USA
| | - Zongliang Jiang
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT 06510, USA.,Current address: AgCenter, School of Animal Sciences, Louisiana State University, Baton Rouge, LA 70803, USA
| | - Tianren Wang
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT 06510, USA.,Current address: Foundation for Embryonic Competence, Basking Ridge, NJ 07920, USA
| | - Ecem Esencan
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT 06510, USA
| | - Richard Scott
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT 06510, USA
| | - Tamas Horvath
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT 06510, USA.,Department of Comparative Medicine, Yale School of Medicine, New Haven, CT 06520, USA
| | - Emre Seli
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT 06510, USA
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39
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Xu S, Wu X, Dong Y, Xu M, Li Z, Chen S, Zhuo Y, Lin Y, Che L, Fang Z, Feng B, Li J, Wang J, Wu D, Ren Z. Glucose activates the primordial follicle through the AMPK/mTOR signaling pathway. Clin Transl Med 2020. [PMCID: PMC7418812 DOI: 10.1002/ctm2.122] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Background We have previously found that the energy level in sows affects the activation of primordial follicles. Glucose is the primary metabolic substrate of dietary energy and its effect and mechanism of action with regards to the activation and development of primordial follicle remain unclear. Studies utilizing several different animal cells have shown that energy stress, induced by glucose starvation, activates AMPK and participates in a variety of cellular processes by regulating the Hippo and mTOR signaling pathways. However, whether glucose can affect primordial follicle activation through the above pathways has not been reported. Methods We developed an in vitro culture system for mouse ovaries to investigate the effects of glucose on the primordial follicle activation. Protein expression of AMPK‐Hippo‐YAP and AMPK‐mTOR pathway was investigated under glucose starvation and optimal glucose level treatment. Then, ovaries were treated with AICAR or Compound C in vitro to explore the effect of AMPK activation or inhibition on primordial follicle activation, and the changes of AMPK‐Hippo‐YAP and AMPK‐mTOR signaling pathways. Finally, investigated the signaling pathways affected by glucose potentially affecting the primordial follicle activation in vivo. Results The glucose was an essential nutrient for primordial follicle activation and we identified 25 mM glucose as the optimal level (P < .05) for the primordial follicle activation in vitro. The glycolysis pathway was involved in primordial follicle activation (P < .05) of ovaries cultured in vitro. The glucose affected the activation of primordial follicles in vitro through AMPK/mTOR signaling pathway by AMPK activation or inhibition treatment and follicle ratio count (P < .05). Moreover, glucose affected the primordial follicle activation of ovary in vivo via mTOR signaling pathway. Conclusions This study demonstrates that glucose affects the primordial follicle activation through the AMPK/mTOR rather than the AMPK/Hippo signaling pathway.
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Affiliation(s)
- Shengyu Xu
- Animal Nutrition Institute, Sichuan Agricultural University; Key Laboratory of Animal Disease‐resistant Nutrition, Ministry of EducationMinistry of Agriculture and Rural Affairs, Sichuan Province Chengdu Sichuan P. R. China
| | - Xiaoling Wu
- Animal Nutrition Institute, Sichuan Agricultural University; Key Laboratory of Animal Disease‐resistant Nutrition, Ministry of EducationMinistry of Agriculture and Rural Affairs, Sichuan Province Chengdu Sichuan P. R. China
| | - Yanpeng Dong
- Animal Nutrition Institute, Sichuan Agricultural University; Key Laboratory of Animal Disease‐resistant Nutrition, Ministry of EducationMinistry of Agriculture and Rural Affairs, Sichuan Province Chengdu Sichuan P. R. China
| | - Mengmeng Xu
- Animal Nutrition Institute, Sichuan Agricultural University; Key Laboratory of Animal Disease‐resistant Nutrition, Ministry of EducationMinistry of Agriculture and Rural Affairs, Sichuan Province Chengdu Sichuan P. R. China
| | - Zimei Li
- Animal Nutrition Institute, Sichuan Agricultural University; Key Laboratory of Animal Disease‐resistant Nutrition, Ministry of EducationMinistry of Agriculture and Rural Affairs, Sichuan Province Chengdu Sichuan P. R. China
| | - Sirun Chen
- Animal Nutrition Institute, Sichuan Agricultural University; Key Laboratory of Animal Disease‐resistant Nutrition, Ministry of EducationMinistry of Agriculture and Rural Affairs, Sichuan Province Chengdu Sichuan P. R. China
| | - Yong Zhuo
- Animal Nutrition Institute, Sichuan Agricultural University; Key Laboratory of Animal Disease‐resistant Nutrition, Ministry of EducationMinistry of Agriculture and Rural Affairs, Sichuan Province Chengdu Sichuan P. R. China
| | - Yan Lin
- Animal Nutrition Institute, Sichuan Agricultural University; Key Laboratory of Animal Disease‐resistant Nutrition, Ministry of EducationMinistry of Agriculture and Rural Affairs, Sichuan Province Chengdu Sichuan P. R. China
| | - Lianqiang Che
- Animal Nutrition Institute, Sichuan Agricultural University; Key Laboratory of Animal Disease‐resistant Nutrition, Ministry of EducationMinistry of Agriculture and Rural Affairs, Sichuan Province Chengdu Sichuan P. R. China
| | - Zhengfeng Fang
- Animal Nutrition Institute, Sichuan Agricultural University; Key Laboratory of Animal Disease‐resistant Nutrition, Ministry of EducationMinistry of Agriculture and Rural Affairs, Sichuan Province Chengdu Sichuan P. R. China
| | - Bin Feng
- Animal Nutrition Institute, Sichuan Agricultural University; Key Laboratory of Animal Disease‐resistant Nutrition, Ministry of EducationMinistry of Agriculture and Rural Affairs, Sichuan Province Chengdu Sichuan P. R. China
| | - Jian Li
- Animal Nutrition Institute, Sichuan Agricultural University; Key Laboratory of Animal Disease‐resistant Nutrition, Ministry of EducationMinistry of Agriculture and Rural Affairs, Sichuan Province Chengdu Sichuan P. R. China
| | - Jianping Wang
- Animal Nutrition Institute, Sichuan Agricultural University; Key Laboratory of Animal Disease‐resistant Nutrition, Ministry of EducationMinistry of Agriculture and Rural Affairs, Sichuan Province Chengdu Sichuan P. R. China
| | - De Wu
- Animal Nutrition Institute, Sichuan Agricultural University; Key Laboratory of Animal Disease‐resistant Nutrition, Ministry of EducationMinistry of Agriculture and Rural Affairs, Sichuan Province Chengdu Sichuan P. R. China
| | - Zhihua Ren
- College of Veterinary Medicine, Sichuan Province Key Laboratory of Animal Disease and Human Health, Key Laboratory of Environmental Hazard and Human Health of Sichuan ProvinceSichuan Agricultural University Chengdu Sichuan P. R. China
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40
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Hosseini M, Salehpour S, Ghaffari Novin M, Shams Mofarahe Z, Abdollahifar MA, Piryaei A. Improvement of in situ Follicular Activation and Early Development in Cryopreserved Human Ovarian Cortical Tissue by Co-Culturing with Mesenchymal Stem Cells. Cells Tissues Organs 2020; 208:48-58. [PMID: 32203969 DOI: 10.1159/000506303] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Accepted: 02/03/2020] [Indexed: 12/16/2022] Open
Abstract
Follicular loss and tissue degeneration are great challenges in ovarian tissue culture systems. Mesenchymal stem cells (MSC) secrete a cocktail of growth factors and cytokines which supports adjacent cells and tissues. The aim of the current study was to investigate the impact of human bone marrow (hBM)-MSC, as co-culture cells, on human follicular development in ovarian cortical tissue (OCT) culture. For this purpose, warmed OCT fragments were co-cultured with hBM-MSC for 8 days and compared to monocultured OCT. During the culture period, ovarian follicle survival and development in the OCT were evaluated using histological observation, follicular developmental-related genes expression, and estradiol production. Furthermore, cell proliferation and apoptosis were assessed. The results showed that there were no significant differences in conserved ovarian follicles with a normal morphology between the two groups. However, the percentage of developing follicles, as well as follicular developmental gene expression, significantly increased in the co-culture group compared to the monoculture group. On the other hand, compared with the monoculture group, the co-culture group demonstrated a significant increase in cell proliferation, indicated by Ki67 gene expression, as well as a dramatic decrease in apoptotic cell percentage, revealed by TUNEL assay. These findings indicated that co-culturing of hBM-MSC with OCT could improve follicular activation and early follicular development in human ovarian tissue culture systems.
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Affiliation(s)
- Marzieh Hosseini
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Saghar Salehpour
- Department of Obstetrics and Gynecology, Preventative Gynecology Research Center (PGRC), Shahid Beheshti University of Medical Sciences, Tehran, Iran.,IVF Center, Taleghani Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Marefat Ghaffari Novin
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Zahra Shams Mofarahe
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad-Amin Abdollahifar
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Abbas Piryaei
- Urogenital Stem Cell Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran, .,Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran,
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41
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Peters AE, Mihalas BP, Bromfield EG, Roman SD, Nixon B, Sutherland JM. Autophagy in Female Fertility: A Role in Oxidative Stress and Aging. Antioxid Redox Signal 2020; 32:550-568. [PMID: 31892284 DOI: 10.1089/ars.2019.7986] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Significance: The precipitous age-related decline in female fertility is intimately associated with a reduction in both the quantity and quality of the germline (oocytes). Although complex etiologies undoubtedly contribute to the deterioration of oocyte quality, increasing attention has focused on the pervasive impact of oxidative stress. Indeed, the prolonged lifespan of the meiotically arrested oocyte places this cell at heightened risk of oxidative lesions, which commonly manifest in dysregulation of protein homeostasis (proteostasis). Although oocytes are able to mitigate this threat via the mobilization of a sophisticated network of surveillance, repair, and proteolytic pathways, these defenses are themselves prone to age-related defects, reducing their capacity to eliminate oxidatively damaged proteins. Recent Advances: Here, we give consideration to the quality control mechanisms identified within the ovary that afford protection to the female germline. Our primary focus is to review recent advances in our understanding of the autophagy pathway and its contribution to promoting oocyte longevity and modulating pathophysiological responses to oxidative stress. In addition, we explore the therapeutic potential of emerging strategies to fortify autophagic activity. Critical Issues: The complex interplay of oxidative stress and autophagy has yet to be fully elucidated within the context of the aging oocyte and surrounding ovarian environment. Future Directions: Emerging evidence provides a strong impetus to resolve the causal link between autophagy and oxidative stress-driven pathologies in the aging oocyte. Such research may ultimately inform novel therapeutic strategies to combat the age-related loss of female fertility via fortification of intrinsic autophagic activity.
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Affiliation(s)
- Alexandra E Peters
- Priority Research Centre for Reproductive Science, Schools of Biomedical Science and Pharmacy and Environmental and Life Sciences, University of Newcastle, Callaghan, Australia.,Hunter Medical Research Institute, New Lambton Heights, Australia
| | - Bettina P Mihalas
- Priority Research Centre for Reproductive Science, Schools of Biomedical Science and Pharmacy and Environmental and Life Sciences, University of Newcastle, Callaghan, Australia.,Hunter Medical Research Institute, New Lambton Heights, Australia
| | - Elizabeth G Bromfield
- Priority Research Centre for Reproductive Science, Schools of Biomedical Science and Pharmacy and Environmental and Life Sciences, University of Newcastle, Callaghan, Australia.,Hunter Medical Research Institute, New Lambton Heights, Australia.,Department of Biochemistry and Cell Biology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Shaun D Roman
- Priority Research Centre for Reproductive Science, Schools of Biomedical Science and Pharmacy and Environmental and Life Sciences, University of Newcastle, Callaghan, Australia.,Hunter Medical Research Institute, New Lambton Heights, Australia.,Priority Research Centre for Drug Development, University of Newcastle, Callaghan, Australia
| | - Brett Nixon
- Priority Research Centre for Reproductive Science, Schools of Biomedical Science and Pharmacy and Environmental and Life Sciences, University of Newcastle, Callaghan, Australia.,Hunter Medical Research Institute, New Lambton Heights, Australia
| | - Jessie M Sutherland
- Priority Research Centre for Reproductive Science, Schools of Biomedical Science and Pharmacy and Environmental and Life Sciences, University of Newcastle, Callaghan, Australia.,Hunter Medical Research Institute, New Lambton Heights, Australia
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Mihalas BP, Redgrove KA, Bernstein IR, Robertson MJ, McCluskey A, Nixon B, Holt JE, McLaughlin EA, Sutherland JM. Dynamin 2-dependent endocytosis is essential for mouse oocyte development and fertility. FASEB J 2020; 34:5162-5177. [PMID: 32065700 DOI: 10.1096/fj.201902184r] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 01/18/2020] [Accepted: 01/29/2020] [Indexed: 12/27/2022]
Abstract
During folliculogenesis, oocytes are dependent on metabolic and molecular support from surrounding somatic cells. Here, we examined the role of the dynamin (DNM) family of mechanoenzymes in mediating endocytotic uptake into growing follicular oocytes. We found DNM1 and DNM2 to be highly expressed in growing follicular oocytes as well as in mature germinal vesicle (GV) and metaphase II (MII) stage oocytes. Moreover, oocyte-specific conditional knockout (cKO) of DNM2 (DNM2Δ) led to complete sterility, with follicles arresting at the preantral stage of development. In addition, DNM2Δ ovaries were characterized by disrupted follicular growth as well as oocyte and follicle apoptosis. Further, the loss of DNM activity, either through DNM2 cKO or through pharmacological inhibition (Dyngo 6a) led to the impairment of endocytotic pathways in preantral oocytes as well as in mature GV and MII oocytes, respectively. Loss of DNM activity resulted in the redistribution of endosomes and the misslocalization of clathrin and actin, suggesting dysfunctional endocytosis. Notably, there was no observable effect on the fertility of DNM1Δ females. Our study has provided new insight into the complex and dynamic nature of oocyte growth during folliculogenesis, suggesting a role for DNM2 in mediating the endocytotic events that are essential for oocyte development.
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Affiliation(s)
- Bettina P Mihalas
- School of Environmental and Life Sciences, University of Newcastle, Callaghan, NSW, Australia.,Priority Research Centre for Reproductive Science, University of Newcastle, Callaghan, NSW, Australia.,Pregnancy and Reproduction Program, Hunter Medial Research Institute, New Lambton Heights, NSW, Australia
| | - Kate A Redgrove
- School of Environmental and Life Sciences, University of Newcastle, Callaghan, NSW, Australia.,Priority Research Centre for Reproductive Science, University of Newcastle, Callaghan, NSW, Australia.,Pregnancy and Reproduction Program, Hunter Medial Research Institute, New Lambton Heights, NSW, Australia
| | - Ilana R Bernstein
- School of Environmental and Life Sciences, University of Newcastle, Callaghan, NSW, Australia.,Priority Research Centre for Reproductive Science, University of Newcastle, Callaghan, NSW, Australia.,Pregnancy and Reproduction Program, Hunter Medial Research Institute, New Lambton Heights, NSW, Australia
| | - Mark J Robertson
- School of Environmental and Life Sciences, University of Newcastle, Callaghan, NSW, Australia.,Priority Research Centre in Chemical Biology, University of Newcastle, Callaghan, NSW, Australia
| | - Adam McCluskey
- School of Environmental and Life Sciences, University of Newcastle, Callaghan, NSW, Australia.,Priority Research Centre in Chemical Biology, University of Newcastle, Callaghan, NSW, Australia
| | - Brett Nixon
- School of Environmental and Life Sciences, University of Newcastle, Callaghan, NSW, Australia.,Priority Research Centre for Reproductive Science, University of Newcastle, Callaghan, NSW, Australia.,Pregnancy and Reproduction Program, Hunter Medial Research Institute, New Lambton Heights, NSW, Australia
| | - Janet E Holt
- Priority Research Centre for Reproductive Science, University of Newcastle, Callaghan, NSW, Australia.,School of Biomedical Sciences & Pharmacy, University of Newcastle, Callaghan, NSW, Australia
| | - Eileen A McLaughlin
- School of Environmental and Life Sciences, University of Newcastle, Callaghan, NSW, Australia.,Priority Research Centre for Reproductive Science, University of Newcastle, Callaghan, NSW, Australia.,Pregnancy and Reproduction Program, Hunter Medial Research Institute, New Lambton Heights, NSW, Australia.,School of Science, Western Sydney University, Penrith, NSW, Australia.,School of Biological Sciences, The University of Auckland, Auckland, New Zealand
| | - Jessie M Sutherland
- Priority Research Centre for Reproductive Science, University of Newcastle, Callaghan, NSW, Australia.,Pregnancy and Reproduction Program, Hunter Medial Research Institute, New Lambton Heights, NSW, Australia.,School of Biomedical Sciences & Pharmacy, University of Newcastle, Callaghan, NSW, Australia
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43
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Yang W, Zhang J, Xu B, He Y, Liu W, Li J, Zhang S, Lin X, Su D, Wu T, Li J. HucMSC-Derived Exosomes Mitigate the Age-Related Retardation of Fertility in Female Mice. Mol Ther 2020; 28:1200-1213. [PMID: 32097602 DOI: 10.1016/j.ymthe.2020.02.003] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 02/04/2020] [Indexed: 12/19/2022] Open
Abstract
In mammals, resting primordial follicles serve as the ovarian reserve. The decline in ovarian function with aging is characterized by a gradual decrease in both the quantity and quality of the oocytes residing within the primordial follicles. Many reports show that mesenchymal stem cells have the ability to recover ovarian function in premature ovarian insufficiency (POI) or natural aging animal models; however, the underlying mechanism remains unclear. In this study, using exosomes derived from human umbilical cord mesenchymal stem cells (HucMSC-exos), we found the specific accumulation of exosomes in primordial oocytes. The stimulating effects of exosomes on primordial follicles were manifested as the activation of the oocyte phosphatidylinositol 3-kinase (PI3K)/mTOR signaling pathway and the acceleration of follicular development after kidney capsule transplantation. Further analysis revealed the stimulatory effects of HucMSC-exos on primordial follicles were through carrying functional microRNAs, such as miR-146a-5p or miR-21-5p. In aged female mice, the intrabursal injection of HucMSC-exos demonstrated the recovery of decreased fertility with increased oocyte production and improved oocyte quality. Although assisted reproductive technologies have been widely used to treat infertility, their overall success rates remain low, especially for women in advanced maternal age. We propose HucMSC-exos as a new approach to mitigate the age-related retardation of fertility in women.
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Affiliation(s)
- Weijie Yang
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 210029, China; Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, Hangzhou 310016, China
| | - Jing Zhang
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 210029, China
| | - Boqun Xu
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Yuanlin He
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 210029, China
| | - Wei Liu
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 210029, China
| | - Jiazhao Li
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 210029, China
| | - Songying Zhang
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, Hangzhou 310016, China
| | - Xiaona Lin
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, Hangzhou 310016, China
| | - Dongming Su
- Centre of Pathology and Clinical Laboratory, Sir Run Run Hospital, Nanjing Medical University, Nanjing 210029, China
| | - Tinghe Wu
- Department of Biotechnology and Biomedicine, Yangtze Delta Region Institutes of Tsinghua University, Jiaxing 314006, China
| | - Jing Li
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 210029, China.
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44
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Melo P, Navarro C, Jones C, Coward K, Coleman L. The use of autologous platelet-rich plasma (PRP) versus no intervention in women with low ovarian reserve undergoing fertility treatment: a non-randomized interventional study. J Assist Reprod Genet 2020; 37:855-863. [PMID: 32030554 DOI: 10.1007/s10815-020-01710-z] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 01/30/2020] [Indexed: 11/28/2022] Open
Abstract
PURPOSE To investigate the impact of a 3-month course of intracortical injections of autologous platelet-rich plasma (PRP) upon ovarian reserve markers versus no intervention in women with low ovarian reserve prior to undergoing assisted reproductive technology (ART). METHODS Prospective controlled, non-randomized comparative study conducted in a private fertility clinic, in Venezuela. Women with abnormal ovarian reserve markers (FSH, AMH and AFC) who declined oocyte donation were allocated to one of the following groups according to patient choice: monthly intracortical ovarian PRP injections for three cycles, or no intervention. Primary outcomes were the change in FSH, AMH and AFC pre- and post-treatment. Secondary outcomes included the number of oocytes collected and fertilized, biochemical/clinical pregnancy rates and miscarriage and live birth rates. RESULTS Eighty-three women were included, of which 46 received PRP treatment and 37 underwent no intervention. Overall median age was 41 years (IQR 39-44). There were no demographic differences between the study groups. At the 3-month follow-up, women treated with PRP experienced a significant improvement in FSH, AMH and AFC, whereas there was no change in the control group. Furthermore, overall rates of biochemical (26.1% versus 5.4%, P = 0.02) and clinical pregnancy (23.9% versus 5.4%, P = 0.03) were higher in the PRP group, while there was no difference in the rates of first trimester miscarriage and live birth between groups. CONCLUSION PRP injections are effective and safe to improve markers of low ovarian reserve prior to ART, although further evidence is required to evaluate the impact of PRP on pregnancy outcomes.
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Affiliation(s)
- P Melo
- Nuffield Department of Women's & Reproductive Health, University of Oxford, Oxford, OX3 9DU, UK.
| | - C Navarro
- Fertiaguerrevere Fertility Clinic, Caracas, 1012, Venezuela
| | - C Jones
- Nuffield Department of Women's & Reproductive Health, University of Oxford, Oxford, OX3 9DU, UK
| | - K Coward
- Nuffield Department of Women's & Reproductive Health, University of Oxford, Oxford, OX3 9DU, UK
| | - L Coleman
- Fertiaguerrevere Fertility Clinic, Caracas, 1012, Venezuela
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45
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Maidarti M, Anderson RA, Telfer EE. Crosstalk between PTEN/PI3K/Akt Signalling and DNA Damage in the Oocyte: Implications for Primordial Follicle Activation, Oocyte Quality and Ageing. Cells 2020; 9:E200. [PMID: 31947601 PMCID: PMC7016612 DOI: 10.3390/cells9010200] [Citation(s) in RCA: 92] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 01/06/2020] [Accepted: 01/13/2020] [Indexed: 12/18/2022] Open
Abstract
The preservation of genome integrity in the mammalian female germline from primordial follicle arrest to activation of growth to oocyte maturation is fundamental to ensure reproductive success. As oocytes are formed before birth and may remain dormant for many years, it is essential that defence mechanisms are monitored and well maintained. The phosphatase and tensin homolog of chromosome 10 (PTEN)/phosphatidylinositol 3-kinase (PI3K)/protein kinase B (PKB, Akt) is a major signalling pathway governing primordial follicle recruitment and growth. This pathway also contributes to cell growth, survival and metabolism, and to the maintenance of genomic integrity. Accelerated primordial follicle activation through this pathway may result in a compromised DNA damage response (DDR). Additionally, the distinct DDR mechanisms in oocytes may become less efficient with ageing. This review considers DNA damage surveillance mechanisms and their links to the PTEN/PI3K/Akt signalling pathway, impacting on the DDR during growth activation of primordial follicles, and in ovarian ageing. Targeting DDR mechanisms within oocytes may be of value in developing techniques to protect ovaries against chemotherapy and in advancing clinical approaches to regulate primordial follicle activation.
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Affiliation(s)
- Mila Maidarti
- MRC Centre for Reproductive Health, Queens Medical Research Institute, University of Edinburgh, Edinburgh EH16 4TJ, UK; (M.M.); (R.A.A.)
- Institute of Cell Biology, University of Edinburgh, Edinburgh EH9 3FF, UK
- Obstetrics and Gynaecology Department, Faculty of Medicine, Universitas Indonesia, Jakarta 10430, Indonesia
| | - Richard A. Anderson
- MRC Centre for Reproductive Health, Queens Medical Research Institute, University of Edinburgh, Edinburgh EH16 4TJ, UK; (M.M.); (R.A.A.)
| | - Evelyn E. Telfer
- Institute of Cell Biology, University of Edinburgh, Edinburgh EH9 3FF, UK
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46
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Fu YX, Wang FM, Ou-Yang XE, Yang HM, Hu T, Wang YF, Wang YF, Wang H, Hu R. Anti-Müllerian Hormone Regulates Stem Cell Factor via cAMP/PKA Signaling Pathway in Human Granulosa Cells by Inhibiting the Phosphorylation of CREB. Reprod Sci 2020; 27:325-333. [PMID: 32046389 DOI: 10.1007/s43032-019-00033-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Accepted: 04/03/2019] [Indexed: 10/25/2022]
Abstract
Anti-Müllerian hormone (AMH) downregulates the level of stem cell factor (SCF) via the cAMP/PKA signaling pathway in human granulosa cells (GCs). Little information is available on the molecular mechanism underlying the interaction. This study is aimed at determining whether AMH regulates expression of SCF via the cAMP-PKA-CREB signaling pathway in human GCs. In the present study, we verified the binding of cAMP-response element-binding protein (CREB) to promoter of SCF in human GCs. Furthermore, the effect of CREB was tested on the SCF promoter, and the site of CREB binding to SCF promoter was identified using truncations as well as assays of SCF-promoted mutation and CREB mutation. To investigate the correlation among AMH, SCF promoter, and CREB, pGL-Basic-SCF+CREB was transfected into overexpressed AMH GCs (AMH-high GCs), low expressed AMH GCs (AMH-low GCs), and normal GCs (GCs), respectively. Finally, immunofluorescence, double immunostaining, and Western blot were carried out in AMH-high and AMH-low GCs to confirm the AMH-mediated regulation of SCF expression by inhibiting the phosphorylation of CREB (pCREB) in GCs. Results indicated CREB interacted with SCF promoter and significantly enhanced the transcription level of SCF. The CREB binding site was localized at 318-321 bp of SCF gene promote. AMH inhibits the expression of SCF by phosphorylation of CREB via the PKA signaling pathway in GCs. These findings provide an in-depth understanding of the molecular mechanism underlying AMH suppressing the follicle growth, which would aid in the development of a novel therapy.
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Affiliation(s)
- Yun-Xing Fu
- Ningxia Medical University, General Hospital of Ningxia Medical University, Yinchuan, 750004, Ningxia, China
| | - Fei-Miao Wang
- Reproductive Medicine Center, General Hospital of Ningxia Medical University, Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Ningxia Medical University, Yinchuan, 750004, Ningxia, China
| | | | - Hui-Min Yang
- Ningxia Medical University, General Hospital of Ningxia Medical University, Yinchuan, 750004, Ningxia, China
| | - Ting Hu
- Ningxia Medical University, General Hospital of Ningxia Medical University, Yinchuan, 750004, Ningxia, China
| | - Ya-Fei Wang
- Ningxia Medical University, General Hospital of Ningxia Medical University, Yinchuan, 750004, Ningxia, China
| | - Yan-Fei Wang
- Ningxia Medical University, General Hospital of Ningxia Medical University, Yinchuan, 750004, Ningxia, China
| | - Hui Wang
- Ningxia Medical University, General Hospital of Ningxia Medical University, Yinchuan, 750004, Ningxia, China
| | - Rong Hu
- Reproductive Medicine Center, General Hospital of Ningxia Medical University, Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Ningxia Medical University, Yinchuan, 750004, Ningxia, China.
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47
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Zhou S, Zhao D, Liu S, Zeng W, Zhang C. TGF-β1 sustains germ cell cyst reservoir via restraining follicle formation in the chicken. Cell Biol Int 2019; 44:861-872. [PMID: 31825139 DOI: 10.1002/cbin.11283] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Accepted: 12/09/2019] [Indexed: 01/04/2023]
Abstract
The transforming growth factor β (TGF-β) superfamily members are important molecules that regulate many ovarian functions under normal physiological and pathological conditions. TGF-β1 and its receptors are highly expressed in the ovarian cells of many species. However, the effect of TGF-β1 on the capacity of the avian germ cell reservoir remains unknown. In this study, 5-day-old chicks were injected with TGF-β1 (2.5, 12.5, and 62.5 μg/kg body weight) for 3 days to assess the effect of TGF-β1 on early follicle development. Morphological analysis showed that treatment with TGF-β1 (12.5 μg/kg) increased the number of germ cell cysts and reduced the number of primordial and growing follicles. The diameter and area of oocytes and follicles were decreased after TGF-β1 treatment. Immunohistochemical staining of the proliferating cell nuclear antigen revealed that the ratios of the positive somatic and granulosa cells were decreased by 16.2% and 2.48%, respectively. Furthermore, more apoptotic cells were observed in the TGF-β1 group than those of the control by terminal deoxynucleotidyl transferase dUTP nick end labeling assay. In addition, we cultured the 5d chicken ovaries for 3 days in vitro and found that treatment with TGF-β1 (10 ng/mL) manifested similar results as the in vivo experiment. However, the negative effect of TGF-β1 on early ovary development was rescued by treatment with a TGF-βR1 inhibitor SD208, resulting in increased expression of steroidogenic enzymes and cell cycle-regulating proteins. In conclusion, TGF-β1 could maintain the germ cell reservoir by restraining follicle activation involving reduced cell proliferation and steroidogenic enzymes gene expression at the early stage of ovarian development.
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Affiliation(s)
- Shuo Zhou
- Department of Veterinary Medicine, College of Animal Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Dan Zhao
- Department of Veterinary Medicine, College of Animal Sciences, Zhejiang University, Hangzhou, 310058, China.,Sichuan Institute of Veterinary Drug Control, Chengdu, 610041, China
| | - Shuqi Liu
- Department of Veterinary Medicine, College of Animal Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Weidong Zeng
- Department of Veterinary Medicine, College of Animal Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Caiqiao Zhang
- Department of Veterinary Medicine, College of Animal Sciences, Zhejiang University, Hangzhou, 310058, China
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48
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Liu H, Liu Z, Meng L, Fu X, Hou Y. Toxic effects of 1-(N-methyl-N-nitrosamino)-1-(3-pyridinyl)-4-butanal on the reproduction of female mice. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 183:109544. [PMID: 31400720 DOI: 10.1016/j.ecoenv.2019.109544] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 07/30/2019] [Accepted: 08/04/2019] [Indexed: 06/10/2023]
Abstract
Cigarette smoke can affect female reproductive health by causing follicle destruction and oocyte dysfunction. Third-hand smoke has received increasing attention as a public health issue. However, the effects of third-hand smoke on the female reproductive system, particularly the ovaries, remain unclear. 1-(N-methyl-N-nitrosamino)-1-(3-pyridinyl)-4-butanal (NNA) can be used as a biomarker of third-hand smoke. We studied the in vivo toxic effects of NNA on mice ovaries and offspring development. Three-week-old premature female mice were exposed to NNA at two different concentrations (0.075 μg/kg and 0.15 μg/kg body weight) and tap water (blank control) and diluted dimethylsulfoxide (solvent control) for 30 days. We found that oral administration of NNA (0.075 μg/kg and 0.15 μg/kg) significantly reduced ovary weight (the 0.15 μg/kg group was reduced to 18.69% ± 0.89%) and ovarian follicle number (reduced by about 30%) (p < 0.05). Consumption of 0.15 μg/kg NNA reduced the survival rate of superovulated oocytes from 91.36% to 60.55% (p < 0.05). In addition, treated female mice in each group were mated with normal male mice to observe the effects of NNA on the F1 offspring, and during mating and lactation, all groups were given tap water. Two different concentrations of NNA exposure also significantly reduced body weight and impaired ear opening, tooth eruption and eye opening in F1 offspring, especially those exposed to 0.15 μg/kg NNA (p < 0.05). Our study suggested that NNA exposure had toxic effects on the reproductive health of female mice and their offspring. The results obtained may help evaluate the risks of third-hand smoke to women's reproductive health and to the health of their offspring.
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Affiliation(s)
- Huage Liu
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Yuanmingyuan West Rd 2, Haidian District, 100193 Beijing, China
| | - Zhiqiang Liu
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Yuanmingyuan West Rd 2, Haidian District, 100193 Beijing, China
| | - Lin Meng
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Yuanmingyuan West Rd 2, Haidian District, 100193 Beijing, China
| | - Xiangwei Fu
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture and National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Yuanmingyuan West Rd 2, Haidian District, 100193 Beijing, China
| | - Yunpeng Hou
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Yuanmingyuan West Rd 2, Haidian District, 100193 Beijing, China.
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49
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Bezerra MÉS, Barberino RS, Menezes VG, Gouveia BB, Macedo TJS, Santos JMS, Monte APO, Barros VRP, Matos MHT. Insulin-like growth factor-1 (IGF-1) promotes primordial follicle growth and reduces DNA fragmentation through the phosphatidylinositol 3-kinase/protein kinase B (PI3K/AKT) signalling pathway. Reprod Fertil Dev 2019; 30:1503-1513. [PMID: 29843892 DOI: 10.1071/rd17332] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Accepted: 04/18/2018] [Indexed: 11/23/2022] Open
Abstract
We investigated the effects of insulin-like growth factor 1 (IGF-1) on the morphology and follicular activation of ovine preantral follicles cultured in situ and whether the phosphatidylinositol 3-kinase/protein kinase B (PI3K/AKT) pathway is involved in IGF-1 action in the sheep ovary. Ovine ovarian fragments were fixed for histological and terminal deoxynucleotidyl transferase dUTP nick-end labelling (TUNEL) analyses (fresh control) or cultured in supplemented alpha-minimum essential medium (α-MEM+; control) or α-MEM+ with IGF-1 (1, 10, 50, 100 or 200ngmL-1) for 7 days. Follicles were classified as normal or atretic, primordial or growing and the oocyte and follicle diameters were measured. DNA fragmentation was evaluated by TUNEL assay. Proliferating cell nuclear antigen (PCNA) immunohistochemistry was performed on the fresh control, α-MEM+ and 100ngmL-1 IGF-1 samples. Inhibition of PI3K activity was performed through pretreatment with the PI3K inhibitor LY294002 and phosphorylated AKT (pAKT) expression was analysed after culture in the absence or presence of LY294002. IGF-1 at 100ngmL-1 increased (P<0.05) follicular activation compared with α-MEM+ and decreased TUNEL-positive cells (P<0.05) compared with other treatments. PCNA-positive cells also increased (P<0.05) in 100ngmL-1 IGF-1. LY294002 significantly inhibited follicular activation stimulated by α-MEM+ and 100ngmL-1 IGF-1 and reduced pAKT expression in follicles. Overall, IGF-1 at 100ngmL-1 promoted primordial follicle activation, cell proliferation and reduced DNA fragmentation after in situ culture through the PI3K/AKT pathway.
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Affiliation(s)
- Maria É S Bezerra
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Rodovia BR 407, Km 12, Lote 543, Projeto C1, CEP: 56300-990, Petrolina, PE, Brazil
| | - Ricássio S Barberino
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Rodovia BR 407, Km 12, Lote 543, Projeto C1, CEP: 56300-990, Petrolina, PE, Brazil
| | - Vanúzia G Menezes
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Rodovia BR 407, Km 12, Lote 543, Projeto C1, CEP: 56300-990, Petrolina, PE, Brazil
| | - Bruna B Gouveia
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Rodovia BR 407, Km 12, Lote 543, Projeto C1, CEP: 56300-990, Petrolina, PE, Brazil
| | - Taís J S Macedo
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Rodovia BR 407, Km 12, Lote 543, Projeto C1, CEP: 56300-990, Petrolina, PE, Brazil
| | - Jamile M S Santos
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Rodovia BR 407, Km 12, Lote 543, Projeto C1, CEP: 56300-990, Petrolina, PE, Brazil
| | - Alane P O Monte
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Rodovia BR 407, Km 12, Lote 543, Projeto C1, CEP: 56300-990, Petrolina, PE, Brazil
| | - Vanessa R P Barros
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Rodovia BR 407, Km 12, Lote 543, Projeto C1, CEP: 56300-990, Petrolina, PE, Brazil
| | - Maria H T Matos
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Rodovia BR 407, Km 12, Lote 543, Projeto C1, CEP: 56300-990, Petrolina, PE, Brazil
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50
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Hall SE, Upton RMO, McLaughlin EA, Sutherland JM. Phosphoinositide 3-kinase/protein kinase B (PI3K/AKT) and Janus kinase/signal transducer and activator of transcription (JAK/STAT) follicular signalling is conserved in the mare ovary. Reprod Fertil Dev 2019; 30:624-633. [PMID: 28945982 DOI: 10.1071/rd17024] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Accepted: 09/03/2017] [Indexed: 01/02/2023] Open
Abstract
The mare ovary is unique in its anatomical structure; however, the signalling pathways responsible for physiological processes, such as follicular activation, remain uncharacterised. This provided us with the impetus to explore whether signalling molecules from important folliculogenesis pathways, phosphoinositide 3-kinase/protein kinase B (PI3K/AKT) and Janus kinase/signal transducer and activator of transcription (JAK/STAT), are conserved in the mare ovary. Messenger RNA expression of six genes important in follicle development was measured using quantitative polymerase chain reaction and protein localisation of key pathway members (PI3K, AKT1, phosphatase and tensin homologue (PTEN), JAK1, STAT3 and suppressor of cytokine signalling 4 (SOCS4)) was compared in tissue from fetal and adult mare ovaries. Tissue from adult ovaries exhibited significantly increased levels of mRNA expression of PI3K, AKT1, PTEN, JAK1, STAT3 and SOCS4 compared with tissue from fetal ovaries. PI3K, AKT1, JAK1 and STAT3 demonstrated redistributed localisation, from pregranulosa cells in fetal development, to both the oocyte and granulosa cells of follicles in the adult ovary, whilst negative feedback molecules PTEN and SOCS4 were only localised to the granulosa cells in the adult ovary. These findings suggest that the PI3K/AKT and JAK/STAT signalling pathways are utilised during folliculogenesis in the mare, similarly to previously studied mammalian species, and may serve as useful biomarkers for assessment of ovary development in the horse.
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Affiliation(s)
- Sally E Hall
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Life Sciences Building, University of Newcastle, Callaghan, NSW 2308, Australia
| | - Rose M O Upton
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Life Sciences Building, University of Newcastle, Callaghan, NSW 2308, Australia
| | - Eileen A McLaughlin
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Life Sciences Building, University of Newcastle, Callaghan, NSW 2308, Australia
| | - Jessie M Sutherland
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Life Sciences Building, University of Newcastle, Callaghan, NSW 2308, Australia
| |
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