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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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Torkzadeh T, Asadi Z, Jafari Atrabi M, Eivazkhani F, Khodadi M, Hajiaghalou S, Akbarinejad V, Fathi R. Optimisation of hormonal treatment to improve follicular development in one-day-old mice ovaries cultured under in vitro condition. Reprod Fertil Dev 2023; 35:733-749. [PMID: 37995332 DOI: 10.1071/rd23027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Accepted: 10/30/2023] [Indexed: 11/25/2023] Open
Abstract
CONTEXT Base medium containing knock-out serum replacement (KSR) has been found to support formation and maintenance of follicles in one-day-old mice ovaries, but has not been shown to properly support activation and growth of primordial follicles. AIMS The present study was conducted to tailor the hormonal content of base medium containing KSR to enhance development of primordial follicles in neonatal ovaries. METHODS One-day-old mice ovaries were initially cultured with base medium for four days, and then, different hormonal treatments were added to the culture media and the culture was proceeded for four additional days until day eight. Ovaries were collected for histological and molecular assessments on days four and eight. KEY RESULTS In experiment I, the main and interactive effects of FSH and testosterone were investigated and FSH promoted activation of primordial follicles and development of primary and preantral follicles, and upregulated genes of phosphoinositide 3-kinase (Pi3k ), KIT ligand (Kitl ), growth differentiation factor 9 (Gdf9 ) and follicle stimulating hormone receptor (Fshr ) (P Bmp15 ), Connexin-43 (Cx43 ) and luteinising hormone and choriogonadotropin receptor (Lhcgr ) (P P Lhcgr (P P >0.05). CONCLUSIONS Supplementation of culture medium containing KSR with gonadotropins, particularly hMG, could improve follicular growth and expression of factors regulating follicular development. IMPLICATIONS This study was a step forward in formulating an optimal medium for development of follicles in cultured one-day-old mice ovaries.
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Affiliation(s)
- Tahoura Torkzadeh
- Department of Theriogenology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Zahra Asadi
- Department of Theriogenology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran; and Department of Oncology Science, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73014, USA
| | - Mohammad Jafari Atrabi
- Institute of Pharmacology and Toxicology, University Medical Center, Georg August University, Göttingen, Germany; and Platform Degenerative Diseases, German Primate Center, Leibniz Institute for Primate Research (DPZ), Göttingen, Germany
| | - Farideh Eivazkhani
- Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Maryam Khodadi
- Department of Theriogenology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Samira Hajiaghalou
- Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Vahid Akbarinejad
- Department of Theriogenology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Rouhollah Fathi
- Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
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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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Guo C, Liu G, Zhao D, Mi Y, Zhang C, Li J. Interaction of Follicle-Stimulating Hormone and Stem Cell Factor to Promote Primordial Follicle Assembly in the Chicken. Front Endocrinol (Lausanne) 2019; 10:91. [PMID: 30837955 PMCID: PMC6389603 DOI: 10.3389/fendo.2019.00091] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Accepted: 01/31/2019] [Indexed: 12/12/2022] Open
Abstract
Follicle-stimulating hormone (FSH) and KIT signaling are required for ovarian development. In this study the interactive effect of FSH and stem cell factor (SCF) on folliculogenesis was investigated in the chicken. Correlated changes between the FSH receptor and the expression of KIT signaling genes were seen to be involved in the formation of the chicken primordial follicles. Follicle-stimulating hormone and SCF displayed a reciprocal stimulating effect in the promotion of folliculogenesis involving elevated phosphorylation of mitogen-activated protein kinases (MAPK) and protein kinase B (AKT) proteins. Knockdown of c-KIT or SCF reduced the stimulatory effect of FSH on KIT signaling as well as upon MAPK and AKT phosphorylation. Treatment of FSH and SCF in combination enhanced ovarian cell proliferation and N-cadherin expression, but inhibited cell apoptosis and E-cadherin expression. Overall, the reciprocal stimulating effect of FSH and SCF in promoting chicken follicle assembly involving accelerated ovarian cell proliferation, N-cadherin expression, inhibited cell apoptosis, and E-cadherin expression is demonstrated.
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Bloise E, Ciarmela P, Dela Cruz C, Luisi S, Petraglia F, Reis FM. Activin A in Mammalian Physiology. Physiol Rev 2019; 99:739-780. [DOI: 10.1152/physrev.00002.2018] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Activins are dimeric glycoproteins belonging to the transforming growth factor beta superfamily and resulting from the assembly of two beta subunits, which may also be combined with alpha subunits to form inhibins. Activins were discovered in 1986 following the isolation of inhibins from porcine follicular fluid, and were characterized as ovarian hormones that stimulate follicle stimulating hormone (FSH) release by the pituitary gland. In particular, activin A was shown to be the isoform of greater physiological importance in humans. The current understanding of activin A surpasses the reproductive system and allows its classification as a hormone, a growth factor, and a cytokine. In more than 30 yr of intense research, activin A was localized in female and male reproductive organs but also in other organs and systems as diverse as the brain, liver, lung, bone, and gut. Moreover, its roles include embryonic differentiation, trophoblast invasion of the uterine wall in early pregnancy, and fetal/neonate brain protection in hypoxic conditions. It is now recognized that activin A overexpression may be either cytostatic or mitogenic, depending on the cell type, with important implications for tumor biology. Activin A also regulates bone formation and regeneration, enhances joint inflammation in rheumatoid arthritis, and triggers pathogenic mechanisms in the respiratory system. In this 30-yr review, we analyze the evidence for physiological roles of activin A and the potential use of activin agonists and antagonists as therapeutic agents.
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Affiliation(s)
- Enrrico Bloise
- Department of Morphology, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil; Department of Experimental and Clinical Medicine, Università Politecnica delle Marche, Ancona, Italy; Department of Obstetrics and Gynecology, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil; Department of Molecular and Developmental Medicine, Obstetrics and Gynecological Clinic, University of Siena, Siena, Italy; and Department of Biomedical, Experimental and Clinical Sciences, Division of Obstetrics and
| | - Pasquapina Ciarmela
- Department of Morphology, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil; Department of Experimental and Clinical Medicine, Università Politecnica delle Marche, Ancona, Italy; Department of Obstetrics and Gynecology, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil; Department of Molecular and Developmental Medicine, Obstetrics and Gynecological Clinic, University of Siena, Siena, Italy; and Department of Biomedical, Experimental and Clinical Sciences, Division of Obstetrics and
| | - Cynthia Dela Cruz
- Department of Morphology, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil; Department of Experimental and Clinical Medicine, Università Politecnica delle Marche, Ancona, Italy; Department of Obstetrics and Gynecology, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil; Department of Molecular and Developmental Medicine, Obstetrics and Gynecological Clinic, University of Siena, Siena, Italy; and Department of Biomedical, Experimental and Clinical Sciences, Division of Obstetrics and
| | - Stefano Luisi
- Department of Morphology, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil; Department of Experimental and Clinical Medicine, Università Politecnica delle Marche, Ancona, Italy; Department of Obstetrics and Gynecology, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil; Department of Molecular and Developmental Medicine, Obstetrics and Gynecological Clinic, University of Siena, Siena, Italy; and Department of Biomedical, Experimental and Clinical Sciences, Division of Obstetrics and
| | - Felice Petraglia
- Department of Morphology, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil; Department of Experimental and Clinical Medicine, Università Politecnica delle Marche, Ancona, Italy; Department of Obstetrics and Gynecology, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil; Department of Molecular and Developmental Medicine, Obstetrics and Gynecological Clinic, University of Siena, Siena, Italy; and Department of Biomedical, Experimental and Clinical Sciences, Division of Obstetrics and
| | - Fernando M. Reis
- Department of Morphology, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil; Department of Experimental and Clinical Medicine, Università Politecnica delle Marche, Ancona, Italy; Department of Obstetrics and Gynecology, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil; Department of Molecular and Developmental Medicine, Obstetrics and Gynecological Clinic, University of Siena, Siena, Italy; and Department of Biomedical, Experimental and Clinical Sciences, Division of Obstetrics and
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Regan SLP, Knight PG, Yovich JL, Leung Y, Arfuso F, Dharmarajan A. Granulosa Cell Apoptosis in the Ovarian Follicle-A Changing View. Front Endocrinol (Lausanne) 2018; 9:61. [PMID: 29551992 PMCID: PMC5840209 DOI: 10.3389/fendo.2018.00061] [Citation(s) in RCA: 103] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Accepted: 02/12/2018] [Indexed: 12/25/2022] Open
Abstract
Recent studies challenge the previous view that apoptosis within the granulosa cells of the maturing ovarian follicle is a reflection of aging and consequently a marker for poor quality of the contained oocyte. On the contrary, apoptosis within the granulosa cells is an integral part of normal development and has limited predictive capability regarding oocyte quality or the ensuing pregnancy rate in in vitro fertilization programs. This review article covers our revised understanding of the process of apoptosis within the ovarian follicle, its three phenotypes, the major signaling pathways underlying apoptosis as well as the associated mitochondrial pathways.
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Affiliation(s)
- Sheena L. P. Regan
- Stem Cell and Cancer Biology Laboratory, School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, WA, Australia
- *Correspondence: Sheena L. P. Regan,
| | - Phil G. Knight
- School of Biological Sciences, University of Reading, Reading, United Kingdom
| | - John L. Yovich
- Stem Cell and Cancer Biology Laboratory, School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, WA, Australia
- PIVET Medical Centre, Perth, WA, Australia
| | - Yee Leung
- Western Australian Gynaecologic Cancer Service, King Edward Memorial Hospital for Women, Perth, WA, Australia
| | - Frank Arfuso
- Stem Cell and Cancer Biology Laboratory, School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, WA, Australia
| | - Arun Dharmarajan
- Stem Cell and Cancer Biology Laboratory, School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, WA, Australia
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Gustin SE, Stringer JM, Hogg K, Sinclair AH, Western PS. FGF9, activin and TGFβ promote testicular characteristics in an XX gonad organ culture model. Reproduction 2016; 152:529-43. [DOI: 10.1530/rep-16-0293] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Accepted: 08/05/2016] [Indexed: 12/29/2022]
Abstract
Testis development is dependent on the key sex-determining factors SRY and SOX9, which activate the essential ligand FGF9. Although FGF9 plays a central role in testis development, it is unable to induce testis formation on its own. However, other growth factors, including activins and TGFβs, also present testis during testis formation. In this study, we investigated the potential of FGF9 combined with activin and TGFβ to induce testis development in cultured XX gonads. Our data demonstrated differing individual and combined abilities of FGF9, activin and TGFβ to promote supporting cell proliferation, Sertoli cell development and male germ line differentiation in cultured XX gonads. FGF9 promoted proliferation of supporting cells in XX foetal gonads at rates similar to those observed in vivo during testis cord formation in XY gonads but was insufficient to initiate testis development. However, when FGF9, activin and TGFβ were combined, aspects of testicular development were induced, including the expression of Sox9, morphological reorganisation of the gonad and deposition of laminin around germ cells. Enhancing β-catenin activity diminished the testis-promoting activities of the combined growth factors. The male promoting activity of FGF9 and the combined growth factors directly or indirectly extended to the germ line, in which a mixed phenotype was observed. FGF9 and the combined growth factors promoted male germ line development, including mitotic arrest, but expression of pluripotency genes was maintained, rather than being repressed. Together, our data provide evidence that combined signalling by FGF9, activin and TGFβ can induce testicular characteristics in XX gonads.
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