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Aizawa E, Ozonov EA, Kawamura YK, Dumeau C, Nagaoka S, Kitajima TS, Saitou M, Peters AHFM, Wutz A. Epigenetic regulation limits competence of pluripotent stem cell-derived oocytes. EMBO J 2023; 42:e113955. [PMID: 37850882 PMCID: PMC10690455 DOI: 10.15252/embj.2023113955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 09/18/2023] [Accepted: 09/18/2023] [Indexed: 10/19/2023] Open
Abstract
Recent studies have reported the differentiation of pluripotent cells into oocytes in vitro. However, the developmental competence of in vitro-generated oocytes remains low. Here, we perform a comprehensive comparison of mouse germ cell development in vitro over all culture steps versus in vivo with the goal to understand mechanisms underlying poor oocyte quality. We show that the in vitro differentiation of primordial germ cells to growing oocytes and subsequent follicle growth is critical for competence for preimplantation development. Systematic transcriptome analysis of single oocytes that were subjected to different culture steps identifies genes that are normally upregulated during oocyte growth to be susceptible for misregulation during in vitro oogenesis. Many misregulated genes are Polycomb targets. Deregulation of Polycomb repression is therefore a key cause and the earliest defect known in in vitro oocyte differentiation. Conversely, structurally normal in vitro-derived oocytes fail at zygotic genome activation and show abnormal acquisition of 5-hydroxymethylcytosine on maternal chromosomes. Our data identify epigenetic regulation at an early stage of oogenesis limiting developmental competence and suggest opportunities for future improvements.
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Affiliation(s)
- Eishi Aizawa
- Institute of Molecular Health Sciences, Swiss Federal Institute of TechnologyETH ZurichZurichSwitzerland
- RIKEN Center for Biosystems Dynamics ResearchKobeJapan
| | - Evgeniy A Ozonov
- Friedrich Miescher Institute for Biomedical ResearchBaselSwitzerland
| | - Yumiko K Kawamura
- Friedrich Miescher Institute for Biomedical ResearchBaselSwitzerland
| | - Charles‐Etienne Dumeau
- Institute of Molecular Health Sciences, Swiss Federal Institute of TechnologyETH ZurichZurichSwitzerland
| | - So Nagaoka
- Department of EmbryologyNara Medical UniversityNaraJapan
| | | | - Mitinori Saitou
- Institute for the Advanced Study of Human Biology (ASHBi)Kyoto UniversityKyotoJapan
- Department of Anatomy and Cell Biology, Graduate School of MedicineKyoto UniversityKyotoJapan
- Center for iPS Cell Research and Application (CiRA)Kyoto UniversityKyotoJapan
| | - Antoine HFM Peters
- Friedrich Miescher Institute for Biomedical ResearchBaselSwitzerland
- Faculty of SciencesUniversity of BaselBaselSwitzerland
| | - Anton Wutz
- Institute of Molecular Health Sciences, Swiss Federal Institute of TechnologyETH ZurichZurichSwitzerland
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2
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Izanlou S, Afshar A, Zare A, Zhilisbayeva KR, Bakhshalizadeh S, Safaei Z, Sehat-Bakhsh S, Khaledi S, Asgari HR, Kazemnejad S, Ajami M, Ajami M, Dehghan Tarzjani M, Najafzadeh V, Kouchakian MR, Mussin NM, Kaliyev AA, Aringazina RA, Mahdipour M, Shirazi R, Tamadon A. Enhancing differentiation of menstrual blood-derived stem cells into female germ cells using a bilayer amniotic membrane and nano-fibrous fibroin scaffold. Tissue Cell 2023; 85:102215. [PMID: 37716177 DOI: 10.1016/j.tice.2023.102215] [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: 07/07/2023] [Revised: 08/17/2023] [Accepted: 09/09/2023] [Indexed: 09/18/2023]
Abstract
Three-dimensional nanofiber scaffolds offer a promising method for simulating in vivo conditions within the laboratory. This study aims to investigate the influence of a bilayer amniochorionic membrane/nanofibrous fibroin scaffold on the differentiation of human menstrual blood mesenchymal stromal/stem cells (MenSCs) into female germ cells. MenSCs were isolated and assigned to four culture groups: (i) MenSCs co-cultured with granulosa cells (GCs) using the scaffold (3D-T group), (ii) MenSCs using the scaffold alone (3D-C group), (iii) MenSCs co-cultured only with GCs (2D-T group), and (iv) MenSCs without co-culture or scaffold (2D-C group). Both MenSCs and GCs were independently cultured for two weeks before co-culturing was initiated. Flow cytometry was employed to characterize MenSCs based on positive markers (CD73, CD90, and CD105) and negative markers (CD45 and CD133). Additionally, flow cytometry and immunocytochemistry were used to characterize the GCs. Differentiated MenSCs were analyzed using real-time PCR and immunostaining. The real-time PCR results demonstrated significantly higher levels of VASA expression in the 3D-T group compared to the 3D-C, 2D-T, and 2D-C groups. Similarly, the SCP3 mRNA level in the 3D-T group was notably elevated compared to the 3D-C, 2D-T, and 2D-C groups. Moreover, the expression of GDF9 was significantly higher in the 3D-T group when compared to the 3D-C, 2D-T, and 2D-C groups. Immunostaining results revealed a lack of signal for VASA, SCP3, or GDF9 markers in the 2D-T group, while some cells in the 3D-T group exhibited positive staining for all these proteins. These findings suggest that the combination of a bilayer amniochorionic membrane/nanofibrous fibroin scaffold with co-culturing GCs facilitates the differentiation of MenSCs into female germ cells.
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Affiliation(s)
- Safoura Izanlou
- Department of Anatomical Sciences, School of Medicine, Iran University of Medical Sciences, Tehran, Islamic Republic of Iran
| | - Alireza Afshar
- Student Research Committee, Bushehr University of Medical Sciences, Bushehr, Islamic Republic of Iran
| | - Afshin Zare
- PerciaVista R&D Co., Shiraz, Islamic Republic of Iran
| | - Kulyash R Zhilisbayeva
- Department of Scientific Work, West Kazakhstan Marat Ospanov Medical University, Aktobe, Kazakhstan
| | - Shabnam Bakhshalizadeh
- Reproductive Development, Murdoch Children's Research Institute, Melbourne, Victoria, Australia; Department of Paediatrics, University of Melbourne, Melbourne, Victoria, Australia.
| | - Zahra Safaei
- Center for Embryonic Cell and Gene Therapy, Oregon Health and Science University, Portland, OR, 97239, USA
| | - Soheila Sehat-Bakhsh
- Department of Anatomical Sciences, School of Medicine, Qazvin University of Medical Sciences, Qazvin, Islamic Republic of Iran
| | - Sajed Khaledi
- Department of Anatomical Sciences, School of Medicine, Iran University of Medical Sciences, Tehran, Islamic Republic of Iran
| | - Hamid-Reza Asgari
- Department of Anatomical Sciences, School of Medicine, Iran University of Medical Sciences, Tehran, Islamic Republic of Iran
| | - Somaieh Kazemnejad
- Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Islamic Republic of Iran
| | - Mansoureh Ajami
- Department of Medical Laboratory Sciences, School of Allied Medical Sciences, Shahroud University of Medical Sciences, Shahroud, Islamic Republic of Iran
| | - Monireh Ajami
- Department of Hematology, Faculty of Paramedical Sciences, Tehran Medical Sciences Branch, Islamic Azad University, Tehran, Islamic Republic of Iran
| | - Masoumeh Dehghan Tarzjani
- Department of Gynecology and Obstetrics, Imam Khomeinin Hospital, Tehran University of Medical Sciences, Tehran, Islamic Republic of Iran
| | | | - Mohammad Reza Kouchakian
- Department of Anatomical Sciences, School of Medicine, Iran University of Medical Sciences, Tehran, Islamic Republic of Iran
| | - Nadiar M Mussin
- General Surgery, West Kazakhstan Marat Ospanov Medical University, Aktobe, Kazakhstan
| | - Asset A Kaliyev
- General Surgery, West Kazakhstan Marat Ospanov Medical University, Aktobe, Kazakhstan
| | - Raisa A Aringazina
- Department of Internal Medicine No. 1, West Kazakhstan Marat Ospanov Medical University, Aktobe, Kazakhstan
| | - Mahdi Mahdipour
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Islamic Republic of Iran; Department of Reproductive Biology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Reza Shirazi
- Department of Anatomical Sciences, School of Medicine, Iran University of Medical Sciences, Tehran, Islamic Republic of Iran; Department of Anatomy, School of Biomedical Sciences, Medicine & Health, UNSW Sydney, Sydney, Australia.
| | - Amin Tamadon
- PerciaVista R&D Co., Shiraz, Islamic Republic of Iran; Department of Scientific Work, West Kazakhstan Marat Ospanov Medical University, Aktobe, Kazakhstan.
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3
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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: 11] [Impact Index Per Article: 11.0] [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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4
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Mirzaeian L, Eivazkhani F, Saber M, Moini A, Esfandiari F, Valojerdi MR, Fathi R. In-vivo oogenesis of oogonial and mesenchymal stem cells seeded in transplanted ovarian extracellular matrix. J Ovarian Res 2023; 16:56. [PMID: 36941728 PMCID: PMC10029222 DOI: 10.1186/s13048-023-01131-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Accepted: 02/27/2023] [Indexed: 03/23/2023] Open
Abstract
OBJECTIVE (S) One way to overcome the recurrence of cancer cells following ovarian tissue transplantation is to use decellularized tissues as a scaffold that does not have any cellular components. These cell-free scaffolds can be seeded with different type of stem cells for ovarian restoration. MATERIALS AND METHODS OSCs, PMSCs and BMSCs (oogonial, peritoneal and bone marrow mesenchymal stem cells, respectively) were seeded into human decellularized ovarian tissue as 4 groups: Scaffold + OSCs (SO), Scaffold + OSC + PMSCs (SOP), Scaffold + OSC + BMSCs (SOB) and Scaffold + OSC + PMSCs + BMSCs (SOPB). The produced grafts were transplanted into the sub-peritoneal space of ovariectomized NMRI mice as artificial ovary (AO). The expression of Vegf, CD34, Gdf9, Zp3, Ddx4, Amh and Lhr genes in AOs were measured by qRT-PCR. Also, histotechniques were considered to detect the anti GFP, PCNA, VEGF, GDF9, ZP3 and AMH proteins. RESULTS H & E staining showed follicle-like structures in all groups; the number of these structures, in the SOP and SOB groups, were the highest. In SO group, differentiation ability to oocyte and granulosa cells was observed. Endothelial, oocyte, germ, and granulosa cell-like cells were specially seen in SOP and angiogenesis capability was more in SOB group. However, angiogenesis ability and differentiation to theca cell-like cells were more often in SOPB group. While none of the groups showed a significant difference in AMH level, estradiol levels were significantly higher in SOPB group. CONCLUSION Integration of OSCs + PMSCs and those OSCs + BMSCs were more conducive to oogenesis.
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Affiliation(s)
- Leila Mirzaeian
- Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, 1665659911, Iran
| | - Farideh Eivazkhani
- Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, 1665659911, Iran
| | - Maryam Saber
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Ashraf Moini
- Breast Disease Research Center (BDRC), Tehran University of Medical Sciences, Tehran, Iran
- Department of Surgery, Arash Women's Hospital, Tehran University of Medical Sciences, Tehran, Iran
- Department of Endocrinology and Female Infertility at Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, 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
| | - Mojtaba Rezazadeh Valojerdi
- Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, 1665659911, Iran
- Department of Anatomy, Faculty of Medical Science, Tarbiat Modares University, Tehran, Iran
| | - Rouhollah Fathi
- Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, 1665659911, Iran.
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5
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Patton BK, Madadi S, Briley SM, Ahmed AA, Pangas SA. Sumoylation regulates functional properties of the oocyte transcription factors SOHLH1 and NOBOX. FASEB J 2023; 37:e22747. [PMID: 36607631 PMCID: PMC10129296 DOI: 10.1096/fj.202201481r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 12/02/2022] [Accepted: 12/19/2022] [Indexed: 01/07/2023]
Abstract
SOHLH1 and NOBOX are oocyte-expressed transcription factors with critical roles in ovary development and fertility. In mice, Sohlh1 and Nobox are essential for fertility through their regulation of the oocyte transcriptional network and cross-talk to somatic cells. Sumoylation is a posttranslational modification that regulates transcription factor function, and we previously showed that mouse oocytes deficient for sumoylation had an altered transcriptional landscape that included significant changes in NOBOX target genes. Here, we show that mouse SOHLH1 is modified by SUMO2/3 at lysine 345 and mutation of this residue alters SOHLH1 nuclear to cytoplasmic localization. In NOBOX, we identify a non-consensus SUMO site, K97, that eliminates NOBOX mono-SUMO2/3 conjugation, while a point mutation at K125 had no effect on NOBOX sumoylation. However, NOBOXK97R/K125R double mutants showed loss of mono-SUMO2/3 and altered higher molecular weight modifications, suggesting cooperation between these lysine's. NOBOXK97R and NOBOXK97R/K125R differentially regulated NOBOX promoter targets, with increased activity on the Gdf9 promoter, but no effect on the Pou5f1 promoter. These data implicate sumoylation as a novel regulatory mechanism for SOHLH1 and NOBOX, which may prove useful in refining their roles during oogenesis as well as their function during reprogramming to generate de novo germ cells.
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Affiliation(s)
- Bethany K. Patton
- Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX 77030
- Graduate Program in Molecular & Cellular Biology, Baylor College of Medicine, Houston, TX 77030
| | - Surabhi Madadi
- Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX 77030
- Rice University, Houston, TX 77005
| | - Shawn M. Briley
- Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX 77030
- Graduate Program in Biochemistry & Molecular Biology, Baylor College of Medicine, Houston, TX 77030
| | - Avery A. Ahmed
- Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX 77030
- Graduate Program in Development, Disease Models & Therapeutics, Baylor College of Medicine, Houston, TX 77030
| | - Stephanie A. Pangas
- Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX 77030
- Graduate Program in Molecular & Cellular Biology, Baylor College of Medicine, Houston, TX 77030
- Graduate Program in Biochemistry & Molecular Biology, Baylor College of Medicine, Houston, TX 77030
- Graduate Program in Development, Disease Models & Therapeutics, Baylor College of Medicine, Houston, TX 77030
- Department of Molecular & Cellular Biology, Baylor College of Medicine, Houston, TX 77030
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6
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Bahmanpour S, Moasses Z, Zarei-Fard N. Comparative effects of retinoic acid, granulosa cells conditioned medium or forskolin in combination with granulosa cell co-culturing on mouse germ cell differentiation. Mol Biol Rep 2023; 50:631-640. [PMID: 36371553 DOI: 10.1007/s11033-022-07920-1] [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: 06/04/2022] [Accepted: 09/06/2022] [Indexed: 11/14/2022]
Abstract
BACKGROUND Devising of an appropriate in vitro culture method for germ cells differentiation in the presence of soluble factors has attracted considerable attention, which results will provide new insight into reproductive biology. In this study, we compared the effects of forskolin, retinoic acid (RA) or granulosa cell-conditioned medium in the presence or absence of granulosa cell co-culturing on germ cell differentiation from embryonic stem cells (ESCs). METHODS AND RESULTS Embryonic stem cells were differentiated using embryoid bodies (EBs) for 5 days, and then EB-derived cells were co-cultured with or without adult mouse granulosa cells using monolayer protocol and treated with 50 µM forskolin, 1 µM RA and 50% granulosa cell-conditioned medium for 4 days. Granulosa cell-conditioned medium significantly increased the levels of Scp3, Rec8, Mvh and Gdf9 expression in the granulosa cell co-culture method compared to untreated cells. A significant elevation of Stra8, Rec8 and Mvh was observed after treatment with RA in the absence of granulosa cells and there was no significant increase in the levels of expression of germ cell-specific genes after treatment with forskolin compared to control. Furthermore, forskolin and RA significantly increased viability and proliferation of germ-like cells, compared with granulosa cell-conditioned medium. CONCLUSIONS Our study revealed that granulosa cell-conditioned medium and RA effectively can induce germ cell differentiation from ESCs, however combined application of granulosa cell-conditioned medium and co-culturing with granulosa cells had synergic effect on germ cell development in vitro as optimized protocol.
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Affiliation(s)
- Soghra Bahmanpour
- Laboratory for stem cell research, Department of Anatomical Sciences, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Zia Moasses
- Laboratory for stem cell research, Department of Anatomical Sciences, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Nehleh Zarei-Fard
- Laboratory for stem cell research, Department of Anatomical Sciences, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran. .,Histomorphometry and Stereology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
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7
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Artificial Oocyte: Development and Potential Application. Cells 2022; 11:cells11071135. [PMID: 35406698 PMCID: PMC8998074 DOI: 10.3390/cells11071135] [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: 03/02/2022] [Revised: 03/25/2022] [Accepted: 03/26/2022] [Indexed: 02/07/2023] Open
Abstract
Millions of people around the world suffer from infertility, with the number of infertile couples and individuals increasing every year. Assisted reproductive technologies (ART) have been widely developed in recent years; however, some patients are unable to benefit from these technologies due to their lack of functional germ cells. Therefore, the development of alternative methods seems necessary. One of these methods is to create artificial oocytes. Oocytes can be generated in vitro from the ovary, fetal gonad, germline stem cells (GSCs), ovarian stem cells, or pluripotent stem cells (PSCs). This approach has raised new hopes in both basic research and medical applications. In this article, we looked at the principle of oocyte development, the landmark studies that enhanced our understanding of the cellular and molecular mechanisms that govern oogenesis in vivo, as well as the mechanisms underlying in vitro generation of functional oocytes from different sources of mouse and human stem cells. In addition, we introduced next-generation ART using somatic cells with artificial oocytes. Finally, we provided an overview of the reproductive application of in vitro oogenesis and its use in human fertility.
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8
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Tanbakooei S, Haramshahi SMA, Vahabzadeh G, Barati M, Katebi M, Golab F, Shetabi Q, Niknam N, Roudbari L, Rajabi Fomeshi M, Amini Moghadam S. Ovarian Stem Cells Differentiation into Primary Oocytes Using Follicle Stimulating Hormone, Basic Fibroblast Growth Factor, and Neurotrophin 3. J Reprod Infertil 2022; 22:241-250. [PMID: 34987985 PMCID: PMC8669404 DOI: 10.18502/jri.v22i4.7649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Accepted: 05/25/2021] [Indexed: 11/24/2022] Open
Abstract
Background: In vitro obtaining oocytes can be an appropriate alternative for patients with gonadal insufficiency or cancer survivors. The purpose of the current research was isolating stem cells from ovarian cortical tissue as well as evaluating the effectiveness of follicle stimulating hormone (FSH), basic fibroblast growth factor (bFGF), and neurotrophin 3 (NT3) in differentiating to oocyte-like cells. Methods: A human ovary was dissected and cortical tissue pieces were cultured for cell isolation. Isolated cells were divided into 8 groups (3 cases in each group) of control, FSH, NT3, bFGF, FSH+NT3, FSH+bFGF, NT3+bFGF, and FSH+NT3+ bFGF. Pluripotency specific gene (OCT4-A and Nanog), initial germ cells (c-KIT and VASA) and PF growth initiators (GDF-9 and Lhx-8) were evaluated by qRTPCR. Experiments were performed in triplicate and there were 3 samples in each group. The results were analyzed using one-way ANOVA and p-value less than 0.05 was considered statistically significant. Results: Flow cytometry results showed that cells isolated from the ovarian cortex expressed markers of pluripotency. The results showed that the expression of Nanog, OCT4, GDF-9 and VASA was significantly increased in FSH+NT3 group, while treatment with bFGF caused significant expression of c-KIT and Lhx-8 (p<0.05). Also, according to the results, isolated cells treated with NT3 significantly increased c-KIT expression. Conclusion: According to our results, the ovarian cortex cells could be differentiated into primordial follicles if treated with the proper combination of FSH, bFGF, and NT3. These findings provided a new perspective for the future of in vitro gamete proudest.
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Affiliation(s)
- Sara Tanbakooei
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Seyed Mohammad Amin Haramshahi
- Department of Tissue Engineering and Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Gelareh Vahabzadeh
- Department of Pharmacology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Mahmood Barati
- Department of Biotechnology, School of Allied Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Majid Katebi
- Department of Anatomy, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Fereshteh Golab
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Qazal Shetabi
- Department of Biology, Islamic Azad University, Science and Research Branch, Tehran, Iran
| | - Narges Niknam
- Department of Biology, Islamic Azad University, Science and Research Branch, Tehran, Iran
| | - Leila Roudbari
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Motahareh Rajabi Fomeshi
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran.,Department of Tissue Engineering and Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Soheila Amini Moghadam
- Department of Gynecology, Firoozgar Hospital, Iran University of Medical Sciences, Tehran, Iran
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9
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Yousefi S, Akbarzadeh M, Soleimanirad J, Hamdi K, Farzadi L, Ghasemzadeh A, Mahdipour M, Rahbarghazi R, Nouri M. Combination of Estradiol with Leukemia Inhibitory Factor Stimulates Granulosa Cells Differentiation into Oocyte-Like Cells. Adv Pharm Bull 2021; 11:712-718. [PMID: 34888218 PMCID: PMC8642804 DOI: 10.34172/apb.2021.080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 04/29/2020] [Accepted: 07/26/2020] [Indexed: 11/16/2022] Open
Abstract
Purpose: Previous studies have documented that cumulus granulosa cells (GCs) can trans-differentiation into different non-ovarian cells, showing their multipotentiality to repopulate the injured cells in ovarian tissue. The current experiment is aimed to assess the differentiation capacity of human cumulus GCs toward the oocyte-like phenotype in vitro. Methods: GCs were isolated from healthy female volunteers subjected to in vitro fertilization or intra-cytoplasmic sperm injection (IVF-ICSI). The effect of different media supplemented with leukemia inhibitory factors (LIFs), 5 ng/mL estradiol, and 0.005 IU/mL follicle-stimulating hormone (FSH) were investigated to the differentiation of GCs toward oocyte-like phenotype via monitoring the expression of Oct3/4 and GATA-4 using flow cytometry analysis. The expression of genes such as FIGLA, NOBOX, and SYCP3 was measured by real-time polymerase chain reaction (PCR) assay. We also assess morphological adaptation by using bright-field microscopic imaging. Results: Exposure of GCs to LIFs increased the number of cells expressing stemness factor Oct3/4 coincided with the suppression of GATA-4 after 7 days (P < 0.05). We found that the transcript level of all genes FIGLA, Nobox, and SYCP-3 decreased in cells after treatment with a FSH (P < 0.05). According to our data, the incubation of GCs with estradiol increased the expression of genes related to the oocyte-like phenotype. Conclusion: Our finding revealed that the combination of LIFs and estradiol could induce the GCs’ oogenesis capacity and thereby is possibly suggested as a therapeutic strategy during the occurrence of gynecological disorders.
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Affiliation(s)
- Soudabe Yousefi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Biochemistry and Clinical Laboratories, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.,Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Maryam Akbarzadeh
- Stem Cell and Regenerative Medicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Jafar Soleimanirad
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Kobra Hamdi
- Department of Applied Cell Sciences, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Laya Farzadi
- Department of Applied Cell Sciences, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Aalie Ghasemzadeh
- Department of Applied Cell Sciences, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mahdi Mahdipour
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Reza Rahbarghazi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Applied Cell Sciences, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Nouri
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Applied Cell Sciences, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
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10
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Hassani Moghaddam M, Eskandari N, Nikzad H, Miryounesi M, Karimian M, Amini Mahabadi J, Ali Atlasi M. Primordial germ cells can be differentiated by retinoic acid and progesterone induction from embryonic stem cells. J Biosci 2021. [DOI: 10.1007/s12038-021-00210-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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11
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Advances in Female Germ Cell Induction from Pluripotent Stem Cells. Stem Cells Int 2021; 2021:8849230. [PMID: 33510796 PMCID: PMC7822693 DOI: 10.1155/2021/8849230] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 12/15/2020] [Accepted: 12/30/2020] [Indexed: 12/31/2022] Open
Abstract
Germ cells are capable of maintaining species continuity through passing genetic and epigenetic information across generations. Female germ cells mainly develop during the embryonic stage and pass through subsequent developmental stages including primordial germ cells, oogonia, and oocyte. However, due to the limitation of using early human embryos as in vivo research model, in vitro research models are needed to reveal the early developmental process and related mechanisms of female germ cells. After birth, the number of follicles gradually decreases with age. Various conditions which damage ovarian functions would cause premature ovarian failure. Alternative treatments to solve these problems need to be investigated. Germ cell differentiation from pluripotent stem cells in vitro can simulate early embryonic development of female germ cells and clarify unresolved issues during the development process. In addition, pluripotent stem cells could potentially provide promising applications for female fertility preservation after proper in vitro differentiation. Mouse female germ cells have been successfully reconstructed in vitro and delivered to live offspring. However, the derivation of functional human female germ cells has not been fully achieved due to technical limitations and ethical issues. To provide an updated and comprehensive information, this review centers on the major studies on the differentiation of mouse and human female germ cells from pluripotent stem cells and provides references to further studies of developmental mechanisms and potential therapeutic applications of female germ cells.
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12
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Sheikholeslami A, Kalhor N, Sheykhhasan M, Jannatifar R, Sahraei SS. Evaluating differentiation potential of the human menstrual blood-derived stem cells from infertile women into oocyte-like cells. Reprod Biol 2021; 21:100477. [PMID: 33401233 DOI: 10.1016/j.repbio.2020.100477] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 11/09/2020] [Accepted: 12/15/2020] [Indexed: 02/08/2023]
Abstract
One of the most intricate infertility problems among women is the number and quality of the oocytes. Menstrual blood-derived stem cells (MenSCs) are a recently discovered source of mesenchymal stem cells which is known as a suitable source of cells for regenerative medicine. We aimed to investigate whether MenSCs as autologous cell source from endometriosis, PCOS, and healthy women have different characteristics regarding their morphology, CD marker expression pattern, differentiation potential into oocyte-like cells, and oocyte-related genes expression. Menstrual blood samples (1-2 ml) from healthy and infertile women (PCOS and endometriosis) in the age range of 22-35 years were collected. Isolated MenSCs by the Ficoll-Paque density-gradient centrifugation method was characterized by flow cytometry. MenSCs were induced under 20 % follicular fluid (FF), and then they were evaluated for differentiation by Real time-PCR and immunocytochemistry assay. MenSCs derived from endometriosis women had different morphology from PCOS and healthy women, but similar regarding their CD marker pattern. All induced MenSCs showed morphological changes and expressed oocyte related genes (STELLA, GDF9, STRA8, PRDM, LHR, FSHR, SCP3, DDX4, and ZP2) in the 2nd week of culture, but there was a significant difference between the groups. Endometriosis-derived MenSCs showed higher levels of both gene and protein expressions. These findings propose that MenSCs derived from endometriosis and PCOS patients under 20 % FF, not only could differentiate into oocyte-like cells, but also showed more differential potential in comparison with healthy women. This indicates the possibility of using the patients' own MenSCs to differentiate into the oocyte-like cells.
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Affiliation(s)
- Azar Sheikholeslami
- Department of Mesenchymal Stem Cells, Academic Center for Education, Culture and Research, Qom Branch, Qom, Iran
| | - Naser Kalhor
- Department of Mesenchymal Stem Cells, Academic Center for Education, Culture and Research, Qom Branch, Qom, Iran
| | - Mohsen Sheykhhasan
- Department of Mesenchymal Stem Cells, Academic Center for Education, Culture and Research, Qom Branch, Qom, Iran
| | - Rahil Jannatifar
- Department of Reproductive Biology, Academic Center for Education, Culture and Research, Qom Branch, Qom, Iran
| | - Seyedeh Saeideh Sahraei
- Department of Mesenchymal Stem Cells, Academic Center for Education, Culture and Research, Qom Branch, Qom, Iran; Department of Reproductive Biology, Academic Center for Education, Culture and Research, Qom Branch, Qom, Iran.
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13
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Li M, Xie L, Li Y, Liu J, Nie G, Yang H. Synergistic effect of Huyang Yangkun Formula and embryonic stem cells on 4-vinylcyclohexene diepoxide induced premature ovarian insufficiency in mice. Chin Med 2020; 15:83. [PMID: 32774448 PMCID: PMC7405416 DOI: 10.1186/s13020-020-00362-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 07/27/2020] [Indexed: 12/22/2022] Open
Abstract
Background Huyang Yangkun Formula (HYYKF) was developed based on theory of traditional Chinese medicine as well as clinical experience and used to improve ovarian function of premature ovarian insufficiency (POI) patients. Transplantation of embryonic stem cells (ESCs) has great potential in improving POI, and studies have confirmed that traditional Chinese medicine promoted the treatment effect of ESCs. In the present study, we compared the effect of combining HYYKF and ESCs, single HYYKF treatment and single ESCs intervention on POI mice to explore the effect of combination of HYYKF and ESCs in improving ovarian function. Methods C57BL/6 mice were used to create a POI model by 15-day intraperitoneal injection of 160 mg/kg of 4-vinylcyclonhexene diepoxide (VCD) and then treated with HYYKF, ESCs transplantation and combination of ESCs and HYYKF. When the treatments were finished, estrus cycle, ovarian follicle counting, serum sex hormone level, and expression of key nodes in the transforming growth factor beta/transforming growth factor beta-activated kinase 1 (TGF-β/TAK1) signaling pathway were determined. Results Combination therapy brought down the abnormal estrus cycle rate to 5.26%, significantly lower than that of HYYKF or ESCs alone (30%, 25%, respectively). The numbers of follicles at all levels were increased significantly in the combination ESCs with HYYKF group (P < 0.05), especially that of antral follicles (P < 0.01), which was not increased significantly when HYYKF or ESCs was single used. The level of anti-Mullerian hormone (AMH) was more significantly increased in the combination ESCs with HYYKF group (P < 0.01) than that of HYYKF or ESCs alone (both P < 0.05). The expression of the key nodes TGF-β1, TAK1, JNK, Smad4 and FSHR in the TGF-β/TAK1 pathway were obviously affected in the SCHY group. Conclusion Both HYYKF and ESCs improve the ovarian function of POI induced by VCD, and a combination of HYYKF and ESCs has the advantage that they work together to promote follicles developing probably by inhibiting expression of the TGF-β1/TAK1 pathway.
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Affiliation(s)
- Meifang Li
- Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006 China
| | - Li Xie
- Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006 China
| | - Yang Li
- Department of Gynaecology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510120 China
| | - Jian Liu
- Department of Gynaecology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510120 China
| | - Guangning Nie
- Department of Gynaecology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510120 China
| | - Hongyan Yang
- Department of Gynaecology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510120 China.,Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome, Guangzhou, Guangdong 510120 China
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14
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Malik HN, Singhal DK, Saini S, Malakar D. Derivation of oocyte-like cells from putative embryonic stem cells and parthenogenetically activated into blastocysts in goat. Sci Rep 2020; 10:10086. [PMID: 32572061 PMCID: PMC7308273 DOI: 10.1038/s41598-020-66609-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Accepted: 05/21/2020] [Indexed: 02/02/2023] Open
Abstract
Germ cells are responsible for the propagation of live animals from generation to generation, but to surprise, a steep increase in infertile problems among livestock poses great threat for economic development of human race. An alternative and robust approach is essential to combat these ailments. Here, we demonstrate that goat putative embryonic stem cells (ESCs) were successfully in vitro differentiated into primordial germ cells and oocyte-like cells using bone morphogenetic protein-4 (BMP-4) and trans-retinoic acid (RA). Oocyte-like cells having distinct zonapellucida recruited adjacent somatic cells in differentiating culture to form cumulus-oocyte complexes (COCs). The putative COCs were found to express the zonapellucida specific (ZP1 and ZP2) and oocyte-specific markers. Primordial germ cell-specific markers VASA, DAZL, STELLA, and PUM1 were detected at protein and mRNA level. In addition to that, the surface architecture of these putative COCs was thoroughly visualized by the scanning electron microscope. The putative COCs were further parthenogenetically activated to develop into healthy morula, blastocysts and hatched blastocyst stage like embryos. Our findings may contribute to the fundamental understanding of mammalian germ cell biology and may provide clinical insights regarding infertility ailments.
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Affiliation(s)
- Hruda Nanda Malik
- Animal Biotechnology Centre, National Dairy Research Institute, Karnal, 32001, India
| | - Dinesh Kumar Singhal
- Animal Biotechnology Centre, National Dairy Research Institute, Karnal, 32001, India
| | - Sikander Saini
- Animal Biotechnology Centre, National Dairy Research Institute, Karnal, 32001, India
| | - Dhruba Malakar
- Animal Biotechnology Centre, National Dairy Research Institute, Karnal, 32001, India.
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15
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Goszczynski DE, Cheng H, Demyda-Peyrás S, Medrano JF, Wu J, Ross PJ. In vitro breeding: application of embryonic stem cells to animal production†. Biol Reprod 2020; 100:885-895. [PMID: 30551176 DOI: 10.1093/biolre/ioy256] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 11/12/2018] [Accepted: 12/13/2018] [Indexed: 12/12/2022] Open
Abstract
Embryonic stem cells (ESCs) are derived from the inner cell mass of preimplantation blastocysts. For decades, attempts to efficiently derive ESCs in animal livestock species have been unsuccessful, but this goal has recently been achieved in cattle. Together with the recent reconstitution of the germ cell differentiation processes from ESCs in mice, these achievements open new avenues for the development of promising technologies oriented toward improving health, animal production, and the environment. In this article, we present a strategy that will notably accelerate genetic improvement in livestock populations by reducing the generational interval, namely in vitro breeding (IVB). IVB combines genomic selection, a widely used strategy for genetically improving livestock, with ESC derivation and in vitro differentiation of germ cells from pluripotent stem cells. We also review the most recent findings in the fields on which IVB is based. Evidence suggests this strategy will be soon within reach.
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Affiliation(s)
| | - Hao Cheng
- Department of Animal Science, University of California, Davis, California, USA
| | - Sebastian Demyda-Peyrás
- Instituto de Genetica Veterinaria, Universidad Nacional de La Plata-CONICET, La Plata, Argentina
| | - Juan F Medrano
- Department of Animal Science, University of California, Davis, California, USA
| | - Jun Wu
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Pablo J Ross
- Department of Animal Science, University of California, Davis, California, USA
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16
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Soleimani A, Fard NZ, Talaei-Khozani T, Bahmanpour S. Epidermal growth factor and three-dimensional scaffolds provide conducive environment for differentiation of mouse embryonic stem cells into oocyte-like cells. Cell Biol Int 2020; 44:1850-1859. [PMID: 32437076 DOI: 10.1002/cbin.11391] [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: 10/14/2019] [Revised: 04/07/2020] [Accepted: 05/18/2020] [Indexed: 11/09/2022]
Abstract
Three-dimensional (3D) culture provides a biomimicry of the naive microenvironment that can support cell proliferation, differentiation, and regeneration. Some growth factors, such as epidermal growth factor (EGF), facilitate normal meiosis during oocyte maturation in vivo. In this study, a scaffold-based 3D coculture system using purified alginate was applied to induce oocyte differentiation from mouse embryonic stem cells (mESCs). mESCs were induced to differentiate into oocyte-like cells using embryoid body protocol in the two-dimensional or 3D microenvironment in vitro. To increase the efficiency of the oocyte-like cell differentiation from mESCs, we employed a coculture system using ovarian granulosa cells in the presence or absence of epidermal growth factor (+EGF or -EGF) for 14 days and then the cells were assessed for germ cell differentiation, meiotic progression, and oocyte maturation markers. The cultures exposed to EGF in the alginate-based 3D microenvironment showed the highest level of premeiotic (Oct4 and Mvh), meiotic (Scp1, Scp3, Stra8, and Rec8), and oocyte maturation (Gdf9, Cx37, and Zp2) marker genes (p < .05) in comparison to other groups. According to the gene-expression patterns, we can conclude that alginate-based 3D coculture system provided a highly efficient protocol for oocyte-like cell differentiation from mESCs. The data showed that this culture system along with EGF improved the rate of in vitro oocyte-like cell differentiation.
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Affiliation(s)
- Azam Soleimani
- Stem Cell Research Laboratory, Department of Anatomical Sciences, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Nehleh Zarei Fard
- Stem Cell Research Laboratory, Department of Anatomical Sciences, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Tahereh Talaei-Khozani
- Stem Cell Research Laboratory, Department of Anatomical Sciences, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Soghra Bahmanpour
- Stem Cell Research Laboratory, Department of Anatomical Sciences, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
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17
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Bharti D, Jang SJ, Lee SY, Lee SL, Rho GJ. In Vitro Generation of Oocyte Like Cells and Their In Vivo Efficacy: How Far We have been Succeeded. Cells 2020; 9:E557. [PMID: 32120836 PMCID: PMC7140496 DOI: 10.3390/cells9030557] [Citation(s) in RCA: 14] [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: 01/15/2020] [Revised: 02/20/2020] [Accepted: 02/25/2020] [Indexed: 12/15/2022] Open
Abstract
In the last few decades, stem cell therapy has grown as a boon for many pathological complications including female reproductive disorders. In this review, a brief description of available strategies that are related to stem cell-based in vitro oocyte-like cell (OLC) development are given. We have tried to cover all the aspects and latest updates of the in vitro OLC developmental methodologies, marker profiling, available disease models, and in vivo efficacies, with a special focus on mesenchymal stem cells (MSCs), induced pluripotent stem cells (iPSCs), and embryonic stem cells (ESCs) usage. The differentiation abilities of both the ovarian and non-ovarian stem cell sources under various induction conditions have shown different effects on morphological alterations, proliferation- and size-associated developments, hormonal secretions under gonadotropic stimulations, and their neo-oogenesis or folliculogenesis abilities after in vivo transplantations. The attainment of characters like oocyte-like morphology, size expansion, and meiosis initiation have been found to be major obstacles during in vitro oogenesis. A number of reports have either lacked in vivo studies or have shown their functional incapability to produce viable and healthy offspring. Though researchers have gained many valuable insights regarding in vitro gametogenesis, still there are many things to do to make stem cell-derived OLCs fully functional.
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Affiliation(s)
- Dinesh Bharti
- Department of Theriogenology and Biotechnology, College of Veterinary Medicine, Gyeongsang National University, Jinju 52828, Korea; (D.B.); (S.-J.J.); (S.-Y.L.); (S.-L.L.)
| | - Si-Jung Jang
- Department of Theriogenology and Biotechnology, College of Veterinary Medicine, Gyeongsang National University, Jinju 52828, Korea; (D.B.); (S.-J.J.); (S.-Y.L.); (S.-L.L.)
| | - Sang-Yun Lee
- Department of Theriogenology and Biotechnology, College of Veterinary Medicine, Gyeongsang National University, Jinju 52828, Korea; (D.B.); (S.-J.J.); (S.-Y.L.); (S.-L.L.)
| | - Sung-Lim Lee
- Department of Theriogenology and Biotechnology, College of Veterinary Medicine, Gyeongsang National University, Jinju 52828, Korea; (D.B.); (S.-J.J.); (S.-Y.L.); (S.-L.L.)
| | - Gyu-Jin Rho
- Department of Theriogenology and Biotechnology, College of Veterinary Medicine, Gyeongsang National University, Jinju 52828, Korea; (D.B.); (S.-J.J.); (S.-Y.L.); (S.-L.L.)
- Research Institute of Life Sciences, Gyeongsang National University, Jinju 52828, Korea
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18
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Sadat Tahajjodi S, Farashahi Yazd E, Agha-Rahimi A, Aflatoonian R, Ali Khalili M, Mohammadi M, Aflatoonian B. Biological and physiological characteristics of human cumulus cells in adherent culture condition. Int J Reprod Biomed 2020; 18:1-10. [PMID: 32043066 PMCID: PMC6996122 DOI: 10.18502/ijrm.v18i1.6189] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Revised: 08/01/2019] [Accepted: 09/11/2019] [Indexed: 12/20/2022] Open
Abstract
Background Cumulus cells, as oocyte nurse cells, provide a suitable microenvironment with growth factors and cellular interactions required for oocyte maturation. Thus, these cells may serve as a natural niche for in vitro studies of female germ cell development. Cumulus cells may help attain a better understanding of the causes of infertility in women and eventually improve the outcomes of cases that respond poorly to standard infertility treatment. Objective The aim of this study was to isolate, culture, and investigate the biological characteristics of human cumulus cells. Materials and Methods In this experimental study, cumulus cells were isolated, cultured, and characterized using reverse transcription-polymerase chain reaction analyses of specific genes including FOXL2, CYP19A1, FSHR, AMHR, and LHR. The presence of vimentin, a structural protein, was examined via immunofluorescent staining. Moreover, levels of anti-mullerian hormone (AMH) and progesterone secretion by cumulus cells were measured with ELISA after 2, 4, 12, 24, and 48 hr of culture. Results In adherent culture, human cumulus cells expressed specific genes and markers as well as secreted AMH and progesterone into the medium. Conclusion Cumulus cells secrete AMH and progesterone in an adherent culture and might be applicable for in vitro maturation (IVM) and in vitro gametogenesis (IVG) studies.
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Affiliation(s)
- Somayyeh Sadat Tahajjodi
- Stem Cell Biology Research Center, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.,Research and Clinical Center for Infertility, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.,Department of Reproductive Biology, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Ehsan Farashahi Yazd
- Stem Cell Biology Research Center, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.,Department of Reproductive Biology, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Azam Agha-Rahimi
- Research and Clinical Center for Infertility, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.,Department of Reproductive Biology, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Reza Aflatoonian
- Department of Endocrinology and Female Infertility, Reproductive Biomedicine Research Centre, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Mohammad Ali Khalili
- Research and Clinical Center for Infertility, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.,Department of Reproductive Biology, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Mahnaz Mohammadi
- Research and Clinical Center for Infertility, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Behrouz Aflatoonian
- Stem Cell Biology Research Center, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.,Research and Clinical Center for Infertility, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.,Department of Advanced Medical Sciences and Technologies, School of Paramedicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
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19
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Abstract
Reproductive biotechnology has developed rapidly and is now able to overcome many birth difficulties due to infertility or the transmission of genetic diseases. Here we introduce the next generation of assisted reproductive technologies (ART), such as mitochondrial replacement technique (MRT) or genetic correction in eggs with micromanipulation. Further, we suggest that the transmission of genetic information from somatic cells to subsequent generations without gametes should be useful for people who suffer from infertility or genetic diseases. Pluripotent stem cells (PSCs) can be converted into germ cells such as sperm or oocytes in the laboratory. Notably, germ cells derived from nuclear transfer embryonic stem cells (NT-ESCs) or induced pluripotent stem cells (iPSCs) inherit the full parental genome. The most important issue in this technique is the generation of a haploid chromosome from diploid somatic cells. We hereby examine current science and limitations underpinning these important developments and provide recommendations for moving forward.
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Affiliation(s)
- Yeonmi Lee
- Department of Convergence Medicine & Stem Cell Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea
| | - Eunju Kang
- Department of Convergence Medicine & Stem Cell Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea
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20
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Issigonis M, Newmark PA. From worm to germ: Germ cell development and regeneration in planarians. Curr Top Dev Biol 2019; 135:127-153. [DOI: 10.1016/bs.ctdb.2019.04.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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21
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Mahabadi JA, Sabzalipoor H, Nikzad H, Seyedhosseini E, Enderami SE, Gheibi Hayat SM, Sahebkar A. The role of microRNAs in embryonic stem cell and induced pluripotent stem cell differentiation in male germ cells. J Cell Physiol 2018; 234:12278-12289. [PMID: 30536380 DOI: 10.1002/jcp.27990] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Accepted: 11/21/2018] [Indexed: 12/12/2022]
Abstract
New perspectives have been opened by advances in stem cell research for reproductive and regenerative medicine. Several different cell types can be differentiated from stem cells (SCs) under suitable in vitro and in vivo conditions. The differentiation of SCs into male germ cells has been reported by many groups. Due to their unlimited pluripotency and self-renewal, embryonic stem cells (ESCs) and induced pluripotent stem cells (iPSCs) can be used as valuable tools for drug delivery, disease modeling, developmental studies, and cell-based therapies in regenerative medicine. The unique features of SCs are controlled by a dynamic interplay between extrinsic signaling pathways, and regulations at epigenetic, transcriptional and posttranscriptional levels. In recent years, significant progress has been made toward better understanding of the functions and expression of specific microRNAs (miRNAs) in the maintenance of SC pluripotency. miRNAs are short noncoding molecules, which play a functional role in the regulation of gene expression. In addition, the important regulatory role of miRNAs in differentiation and dedifferentiation has been recently demonstrated. A balance between differentiation and pluripotency is maintained by miRNAs in the embryo and stem cells. This review summarizes the recent findings about the role of miRNAs in the regulation of self-renewal and pluripotency of iPSCs and ESCs, as well as their impact on cellular reprogramming and stem cell differentiation into male germ cells.
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Affiliation(s)
- Javad Amini Mahabadi
- Gametogenesis Research Center, Kashan University of Medical Sciences, Kashan, Iran
| | - Hamed Sabzalipoor
- Department of Nanobiotechnology, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Hossein Nikzad
- Gametogenesis Research Center, Kashan University of Medical Sciences, Kashan, Iran
| | - Elahe Seyedhosseini
- Gametogenesis Research Center, Kashan University of Medical Sciences, Kashan, Iran
| | - Seyed Ehsan Enderami
- Department of Medical Biotechnology and Nanotechnology, Faculty of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Seyed Mohammad Gheibi Hayat
- Department of Medical Genetics, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Amirhosein Sahebkar
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.,Neurogenic Inflammation Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.,School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
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22
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Eskandari N, Hassani Moghaddam M, Atlasi MA, Amini Mahabadi J, Taherian A, Nikzad H. The combination of retinoic acid and estrogen can increase germ cells genes expression in mouse embryonic stem cells derived primordial germ cells. Biologicals 2018; 56:39-44. [DOI: 10.1016/j.biologicals.2018.10.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Revised: 05/16/2018] [Accepted: 10/01/2018] [Indexed: 12/16/2022] Open
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23
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Zou K, Wang J, Bi H, Zhang Y, Tian X, Tian N, Ma W, Wu J. Comparison of different in vitro differentiation conditions for murine female germline stem cells. Cell Prolif 2018; 52:e12530. [PMID: 30334302 PMCID: PMC6430485 DOI: 10.1111/cpr.12530] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 08/20/2018] [Accepted: 08/24/2018] [Indexed: 12/26/2022] Open
Abstract
Objectives In vitro differentiation of oocytes from female germline stem cells (FGSCs) has exciting potential applications for reproductive medicine. Some researchers have attempted to reveal the in vitro differentiation capacity of FGSCs. However, no systematic comparative study of in vitro differentiation conditions has been performed for murine FGSCs (mFGSCs). Materials and Methods mFGSCs line was cultured under five different conditions for in vitro differentiation. RT‐PCR was performed to detect the expression of Oct4, Fragilis, Blimp1, Mvh, Scp3 and Zp3. Immunofluorescence was carried out to test the expression of Mvh, Fragilis and Zp3. Two‐photon laser‐scanning microscope was used to analyze nucleus‐plasma ratio, and the proportion of chromatin of GV oocytes differentiated from mFGSCs in vitro (IVD‐GVO), GV oocytes from in vivo (GVO) and mFGSCs. Results RT‐PCR and immunofluorescence showed that mFGSC line expressed germ cell‐specific markers, but not a meiosis‐specific marker. By evaluating five different in vitro differentiation conditions, condition 5, which included a hanging drop procedure and co‐culture of mFGSCs with granulosa cells, was shown to be optimal. mFGSCs could be successfully differentiated into germinal vesicle (GV) ‐stage oocytes under this condition. 3D observation revealed that both the nucleus‐plasma ratio and proportion of chromatin were not significantly different between IVD‐GVO and GVO. Conclusion We evaluated five in vitro differentiation conditions for mFGSCs and successfully differentiate mFGSCs into GV‐stage oocytes using a three‐step differentiation process.
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Affiliation(s)
- Kang Zou
- Key Laboratory for the Genetics of Developmental & Neuropsychiatric Disorders (Ministry of Education), Bio-X Institutes, Shanghai Jiao Tong University, Shanghai, China
| | - Jian Wang
- Key Laboratory for the Genetics of Developmental & Neuropsychiatric Disorders (Ministry of Education), Bio-X Institutes, Shanghai Jiao Tong University, Shanghai, China
| | - Haiwei Bi
- Key Laboratory for the Genetics of Developmental & Neuropsychiatric Disorders (Ministry of Education), Bio-X Institutes, Shanghai Jiao Tong University, Shanghai, China
| | - Yabin Zhang
- Key Laboratory for the Genetics of Developmental & Neuropsychiatric Disorders (Ministry of Education), Bio-X Institutes, Shanghai Jiao Tong University, Shanghai, China
| | - Xueli Tian
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing, China
| | - Ning Tian
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing, China
| | - Wanyun Ma
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing, China
| | - Ji Wu
- Key Laboratory for the Genetics of Developmental & Neuropsychiatric Disorders (Ministry of Education), Bio-X Institutes, Shanghai Jiao Tong University, Shanghai, China.,Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Ningxia Medical University, Yinchuan, China.,State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Dalman A, Totonchi M, Rezazadeh Valojerdi M. Human Ovarian Theca-Derived Multipotent Stem Cells Have The Potential to Differentiate into Oocyte-Like Cells In Vitro. CELL JOURNAL 2018; 20:527-536. [PMID: 30123999 PMCID: PMC6099133 DOI: 10.22074/cellj.2019.5651] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Accepted: 01/06/2017] [Indexed: 12/03/2022]
Abstract
Objective In this study, we have examined human theca stem cells (hTSCs) in vitro differentiation capacity into human oocyte
like cells (hOLCs).
Materials and Methods In this interventional experiment study, hTSCs were isolated from the theca layer of small antral
follicles (3-5 mm in size). Isolated hTSCs were expanded and cultured in differentiation medium, containing 5% human follicular
fluid, for 50 days. Gene expressions of PRDM1, PRDM14, VASA, DAZL, OCT4, ZP1, 2, 3 GDF9, SCP3 and DMC1 were
evaluated by quantitative reverse transcription polymerase chain reaction (qRT-PCR) on days 0, 18, and 25 after monoculture
as well as one week after co-culture with human granulosa cells (hGCs). In addition, GDF9, OCT4, DAZL, VASA, and ZP3
proteins were immune-localized in oocyte-like structures.
Results After 16-18 days, the color of the medium became acidic. After 25 days, the cells started to differentiate into
round-shaped cells (20-25 µm diameter). One week after co-culturing with hGCs, the size of the round cells increased
60 to70 µm and convert to hOLCs. However, these growing cells expressed some primordial germ cell (PGC)- and
germ cell genes (PRDM1, PRDM14, VASA, DAZL, and OCT4) as well as oocyte specific genes (ZP1, 2, 3 and GDF9),
and meiotic-specific markers (SCP3 and DMC1). In addition, GDF9, OCT4, DAZL, VASA, and ZP3 proteins were
present in hOLCs.
Conclusion To sum up, hTSCs have the ability to differentiate into hOLCs. This introduced model paved the way for further
in vitro studies of the exact mechanisms behind germ cell formation and differentiation. However, the functionality of hOLCs
needs further investigation.
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Affiliation(s)
- Azam Dalman
- Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Mehdi Totonchi
- Department of Anatomical Science, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mojtaba Rezazadeh Valojerdi
- Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran. Electronic Address: , .,Department of Anatomy, Faculty of Medical Science, Tarbiat Modares University, Tehran, Iran
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25
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Mahabadi JA, Sabzalipour H, Bafrani HH, Gheibi Hayat SM, Nikzad H. Application of induced pluripotent stem cell and embryonic stem cell technology to the study of male infertility. J Cell Physiol 2018; 233:8441-8449. [PMID: 29870061 DOI: 10.1002/jcp.26757] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2018] [Accepted: 04/23/2018] [Indexed: 01/18/2023]
Abstract
Stem cells (SCs) are classes of undifferentiated biological cells existing only at the embryonic, fetal, and adult stages that can divide to produce specialized cell types during fetal development and remain in our bodies throughout life. The progression of regenerative and reproductive medicine owes the advancement of respective in vitro and in vivo biological science on the stem cell nature under appropriate conditions. The SCs are promising therapeutic tools to treat currently of infertility because of wide sources and high potency to differentiate. Nevertheless, no effective remedies are available to deal with severe infertility due to congenital or gonadotoxic stem cell deficiency in prepubertal childhood. Some recent solutions have been developed to address the severe fertility problems, including in vitro formation of germ cells from stem cells, induction of pluripotency from somatic cells, and production of patient-specific pluripotent stem cells. There is a possibility of fertility restoration using the in vitro formation of germ cells from somatic cells. Accordingly, the present review aimed at studying the literature published on the medical application of stem cells in reproductive concerns.
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Affiliation(s)
- Javad Amini Mahabadi
- Gametogenesis Research Center, Kashan University of Medical Sciences, Kashan, Iran
| | - Hamed Sabzalipour
- Department of Nanobiotechnology, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | | | - Seyed Mohammad Gheibi Hayat
- Student Research Committee, Department of Medical Biotechnology, Faculty Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hossein Nikzad
- Gametogenesis Research Center, Kashan University of Medical Sciences, Kashan, Iran
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26
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Ma X, Li P, Sun X, Sun Y, Hu R, Yuan P. Differentiation of female Oct4-GFP embryonic stem cells into germ lineage cells. Cell Biol Int 2018; 42:488-494. [PMID: 29271529 DOI: 10.1002/cbin.10918] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2017] [Accepted: 12/17/2017] [Indexed: 02/05/2023]
Abstract
Due to high infertility ratio nowadays, it is essential to explore efficient ways of enhancing mammalian reproductivity, in particular female reproductivity. Using female Oct4-GFP embryonic stem cells, we mimic the in vivo development procedure to induce ES cells into epiblast cell-like cells (EpiLCs) and then primordial germ cell-like cells (PGCLCs). GFP positive PGCLCs that showed typical PGC markers and epigenetic modification were efficiently obtained. Further transplantation of the GFP positive PGCLC and native ovary cell mixture into ovary of infertile mice revealed that both MVH and GFP positive cells could be developed in ovary, but no later developmental stage germ cells were observed. This study suggested that Oct4-GFP ES cells may be only suitable for tracing early germ cell development.
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Affiliation(s)
- Xin Ma
- Department of Chemical Pathology, The Chinese University of Hong Kong, Hong Kong SAR, China
- Shenzhen Futian Hospital for Rheumatic Disease, No.22 Nonglin Road, Shenzhen, China
| | - Peng Li
- Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Xiang Sun
- Department of Chemical Pathology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Yifeng Sun
- Sing Loong Limited, Hong Kong SAR, China
| | - Rong Hu
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Disease, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510655, China
- Guangdong Institute of Gastroenterology, Guangzhou, Guangdong, 510655, China
| | - Ping Yuan
- Department of Chemical Pathology, The Chinese University of Hong Kong, Hong Kong SAR, China
- Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Disease, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510655, China
- Guangdong Institute of Gastroenterology, Guangzhou, Guangdong, 510655, China
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27
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Yousefi S, Soleimanirad J, Hamdi K, Farzadi L, Ghasemzadeh A, Kazemi M, Mahdipour M, Rahbarghazi R, Nouri M. Distinct effect of fetal bovine serum versus follicular fluid on multipotentiality of human granulosa cells in in vitro condition. Biologicals 2018; 52:44-48. [PMID: 29398344 DOI: 10.1016/j.biologicals.2018.01.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2017] [Revised: 12/30/2017] [Accepted: 01/19/2018] [Indexed: 12/01/2022] Open
Abstract
This study aimed to develop an appropriate medium for preservation of multipotentiality in human granulosa cells. To compare the possible effect of different media supplemented with follicular fluid or fetal bovine serum, granulosa cells were cultured in vitro over a period of 14 days. Stemness feature and any alteration in the cell phenotype were monitored using colony count assay and flow cytometry analysis by monitoring the expression of Oct3/4 and GATA-4 factors. Transcript expression level of Sox-2, Klf-4, and Nanog were investigated using quantitative real-time PCR analysis. Cells were cultured in the medium supplement with follicular fluid showed normal cell morphology and epithelial-like appearance, however, cells treated with fetal bovine serum, exhibited the clonogenic potential of granulosa cells which was increased after exposure to follicular fluid after 14 days (p < 0.05). Flow cytometry analysis revealed a significant reduction in the protein level of GATA-4 in cells cultured in presence of follicular fluid compared with cells received fetal bovine serum (p < 0.001). Quantitative real-time PCR analysis disclosed reduction of Sox-2, Klf-4 and Nanog levels in cells exposed to fetal bovine serum. Our experiment showed the exposure of human granulosa cells to follicular fluid efficiently preserves the stemness characteristics of the cells.
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Affiliation(s)
- Soudabe Yousefi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Biochemistry and Clinical Laboratories, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran; Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Jafar Soleimanirad
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Kobra Hamdi
- Women's Reproductive Health Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Laya Farzadi
- Women's Reproductive Health Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Aalie Ghasemzadeh
- Women's Reproductive Health Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Masoumeh Kazemi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mahdi Mahdipour
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Reza Rahbarghazi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Applied Cell Sciences, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Mohammad Nouri
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Women's Reproductive Health Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
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28
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Amini Mahabadi J, Sabzalipoor H, Kehtari M, Enderami SE, Soleimani M, Nikzad H. Derivation of male germ cells from induced pluripotent stem cells by inducers: A review. Cytotherapy 2018; 20:279-290. [PMID: 29397308 DOI: 10.1016/j.jcyt.2018.01.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 11/15/2017] [Accepted: 01/01/2018] [Indexed: 12/29/2022]
Abstract
Induced pluripotent stem cells (iPSCs) refer to stem cells that are artificially produced using a new technology known as cellular reprogramming, which can use gene transduction in somatic cells. There are numerous potential applications for iPSCs in the field of stem cell biology becauase they are able to give rise to several different cell features of lineages such as three-germ layers. Primordial germ cells, generated via in vitro differentiation of iPSCs, have been demonstrated to produce functional gametes. Therefore, in this review we discussed past and recent advances in the in vitro differentiation of germ cells using pluripotent stem cells with an emphasis on iPSCs. Although this domain of research is still in its infancy, exploring development mechanisms of germ cells is promising, especially in humans, to promote future reproductive and developmental engineering technologies. While few studies have evaluated the ability and efficiency of iPSCs to differentiate toward male germ cells in vitro by different inducers, the given effect was investigated in this review.
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Affiliation(s)
- Javad Amini Mahabadi
- Gametogenesis Research Center, Kashan University of Medical Sciences, Kashan, Iran
| | - Hamed Sabzalipoor
- Department of Nanobiotechnology, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Mousa Kehtari
- School of Biology, College of Science, University of Tehran, Tehran, Iran
| | - Seyed Ehsan Enderami
- Department of Medical Biotechnology and Nanotechnology, Faculty of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Masoud Soleimani
- Hematology Department, School of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Hossein Nikzad
- Gametogenesis Research Center, Kashan University of Medical Sciences, Kashan, Iran.
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29
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Hayashi M, Kawaguchi T, Durcova-Hills G, Imai H. Generation of germ cells from pluripotent stem cells in mammals. Reprod Med Biol 2017; 17:107-114. [PMID: 29692667 PMCID: PMC5902460 DOI: 10.1002/rmb2.12077] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Accepted: 11/07/2017] [Indexed: 01/01/2023] Open
Abstract
Background The germ cell lineage transmits genetic and epigenetic information to the next generation. Primordial germ cells (PGCs), the early embryonic precursors of sperm or eggs, have been studied extensively. Recently, in vitro models of PGC induction have been established in the mouse. Many attempts are reported to enhance our understanding of PGC development in other mammals, including human. Methods Here, original and review articles that have been published on PubMed are reviewed in order to give an overview of the literature that is focused on PGC development, including the specification of in vivo and in vitro in mice, human, porcine, and bovine. Results Mammalian PGC development, in vivo and in vitro, have been studied primarily by using the mouse model as a template to study PGC specification in other mammals, including human, porcine, and bovine. Conclusion The growing body of published works reveals similarities, as well as differences, in PGC establishment in and between mouse and human.
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Affiliation(s)
- Masafumi Hayashi
- Laboratory of Reproductive Biology Graduate School of Agriculture Kyoto University Kyoto Japan
| | - Takamasa Kawaguchi
- Laboratory of Reproductive Biology Graduate School of Agriculture Kyoto University Kyoto Japan.,The Fukui Research Institute Ono Pharmaceutical Companyy, Ltd. Fukui Japan
| | - Gabriela Durcova-Hills
- Laboratory of Reproductive Biology Graduate School of Agriculture Kyoto University Kyoto Japan
| | - Hiroshi Imai
- Laboratory of Reproductive Biology Graduate School of Agriculture Kyoto University Kyoto Japan
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30
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Parvari S, Yazdekhasti H, Rajabi Z, Gerayeli Malek V, Rastegar T, Abbasi M. Differentiation of Mouse Ovarian Stem Cells Toward Oocyte-Like Structure by Coculture with Granulosa Cells. Cell Reprogram 2017; 18:419-428. [PMID: 27906587 DOI: 10.1089/cell.2016.0013] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
An increasing body of evidence has confirmed existence and function of ovarian stem cells (OSCs). In this study, a novel approach on differentiation of OSCs into oocyte-like cells (OLCs) has been addressed. Recently, different methods have been recruited to isolate and describe aspects of OSCs, but newer and more convenient strategies in isolation are still growing. Herein, a morphology-based method was used to isolate OSCs. Cell suspension of mouse neonatal ovaries was cultured and formed colonies were harvested mechanically and cultivated on mouse embryonic fibroblasts. For differentiation induction, colonies transferred on inactive granulosa cells. Results showed that cells in colonies were positive for alkaline phosphatase activity and reverse transcription-polymerase chain reaction (RT-PCR) confirmed the pluripotency characteristics of cells. Immunofluorescence revealed a positive signal for OCT4, DAZL, MVH, and SSEA1 in colonies as well. Results of RT-PCR and immunofluorescence confirmed that some OLCs were generated within the germ stem cell (GSCs) colonies. The applicability of morphological selection for isolation of GSCs was verified. This method is easier and more economic than other techniques. Our results demonstrate that granulosa cells were effective in inducing the differentiation of OSCs into OLCs through direct cell-to-cell contacts.
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Affiliation(s)
- Soraya Parvari
- 1 Department of Anatomy, Faculty of Medicine, Alborz University of Medical Sciences , Karaj, Iran
| | - Hossein Yazdekhasti
- 2 Department of Anatomy, Faculty of Medicine, Tehran University of Medical Sciences , Tehran, Iran
| | - Zahra Rajabi
- 2 Department of Anatomy, Faculty of Medicine, Tehran University of Medical Sciences , Tehran, Iran
| | | | - Tayebeh Rastegar
- 2 Department of Anatomy, Faculty of Medicine, Tehran University of Medical Sciences , Tehran, Iran
| | - Mehdi Abbasi
- 2 Department of Anatomy, Faculty of Medicine, Tehran University of Medical Sciences , Tehran, Iran
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31
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32
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Mansouri V, Salehi M, Omrani MD, Niknam Z, Ardeshirylajimi A. Collagen-alginate microspheres as a 3D culture system for mouse embryonic stem cells differentiation to primordial germ cells. Biologicals 2017; 48:114-120. [PMID: 28483511 DOI: 10.1016/j.biologicals.2017.04.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2017] [Revised: 04/24/2017] [Accepted: 04/25/2017] [Indexed: 12/27/2022] Open
Abstract
Germ cells differentiation of stem cells will aid treatment of adults with infertility. Biopolymers utilization provided synthetic extracellular matrix (ECM) and desired attributes in in vitro to improve conditions for stem cells attachment, proliferation and differentiation. Mixture of alginate as a biocompatible hydrogel, with collagen IV, could establish an in vitro 3 dimensional (3D) culture model. The objective of this study was investigation of the mouse ESCs differentiation capacity to putative primordial germ cells (PGCs) in the alginate and alginate-collagen IV microspheres (CAM). ESCs aggregated together to form embryoid bodies (EB) in CAM under basal medium supplemented with bone morphogenetic protein-4 (BMP4) as a differentiation factor. Viability and PGC differentiation of the stem cells in microspheres was evaluated by apoptosis and PGC related gene markers. Flow cytometry analysis was also used to detect of Mvh endogenous protein as a specific PGC marker. PGC gene and protein expression revealed that differentiation potential of ESCs to putative PGCs in CAM is significantly higher than control groups. Taking together, it was concluded that CAM demonstrated a great potential to use in PGCs differentiation and treatment of adults with infertility and may be a reliable means of producing mature germ cells.
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Affiliation(s)
- Vahid Mansouri
- Urogenital Stem Cell Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Faculty of Paramedical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Salehi
- Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Department of Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Mir Davood Omrani
- Urogenital Stem Cell Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Zahra Niknam
- Proteomics Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Abdolreza Ardeshirylajimi
- Urogenital Stem Cell Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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33
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Wen Y, He W, Jiang M, Zeng M, Cai L. Deriving cells expressing markers of female germ cells from premature ovarian failure patient-specific induced pluripotent stem cells. Regen Med 2017; 12:143-152. [PMID: 28244827 DOI: 10.2217/rme-2016-0074] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Aim: We proposed a two-step protocol for deriving cells expressing markers of female germ cells (FGCs) from premature ovarian failure patient-specific induced pluripotent stem cells (POF-iPSCs). Material & methods: We cultured POF-iPSCs in suspension and pretreated them with TGFβ-1 (1 ng/ml) for 2 days and continued with both TGFβ-1 and BMP4 (50 ng/ml) for 5 more days. Then changed to media containing retinoic acid (1 μM) and 5% follicular fluid for another 7 days. Expression of markers of different stages of FGCs were detected. Results: c-KIT, STELLA/DPPA3, VASA/DDX4, SCP3, GDF9 and ZP3 were positively detected and statistically significant different when compared with control groups. Conclusion: Our in vitro system was beneficial for POF-iPSCs differentiated cells to express STELLA, VASA and SCP3, which were the markers of meiosis initiation of FGCs.
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Affiliation(s)
- Yanfei Wen
- Center for Reproductive Medicine, The Third Affiliated Hospital, Sun Yat-sen University, 6 East Longkou Road, Guangzhou, China
- Center for Reproductive Medicine, Jiangmen Central Hospital, Affiliated Jiangmen Hospital of Sun Yat-sen University, Jiangmen, China
| | - Wen He
- Center for Reproductive Medicine, The Third Affiliated Hospital, Sun Yat-sen University, 6 East Longkou Road, Guangzhou, China
| | - Manbo Jiang
- Center for Reproductive Medicine, The Third Affiliated Hospital, Sun Yat-sen University, 6 East Longkou Road, Guangzhou, China
- Department of Reproductive Medicine, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, China
| | - Minhui Zeng
- Center for Reproductive Medicine, The Third Affiliated Hospital, Sun Yat-sen University, 6 East Longkou Road, Guangzhou, China
- Memorial hospital of Sun Yat-sen University, Guangzhou, China
| | - Liuhong Cai
- Center for Reproductive Medicine, The Third Affiliated Hospital, Sun Yat-sen University, 6 East Longkou Road, Guangzhou, China
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34
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Shah SM, Saini N, Ashraf S, Singh MK, Manik RS, Singla SK, Palta P, Chauhan MS. Cumulus cell-conditioned medium supports embryonic stem cell differentiation to germ cell-like cells. Reprod Fertil Dev 2017; 29:679-693. [DOI: 10.1071/rd15159] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Accepted: 10/17/2015] [Indexed: 12/12/2022] Open
Abstract
Cumulus cells provide cellular interactions and growth factors required for oogenesis. In vitro studies of oogenesis are limited primarily because of the paucity of their source, first trimester fetal gonads, and the small number of germ lineage precursor cells present within these tissues. In order to understand this obscure but vitally important process, the present study was designed to direct differentiation of embryonic stem (ES) cells into germ lineage cells. For this purpose, buffalo ES cells were differentiated, as embryoid bodies (EBs) and monolayer adherent cultures, in the presence of different concentrations of cumulus-conditioned medium (CCM; 10%, 20% and 40%) for different periods of culture (4, 8 and 14 days) to identify the optimum differentiation-inducing concentration and time. Quantitative polymerase chain reaction analysis revealed that 20%–40% CCM induced the highest expression of primordial germ cell-specific (deleted in Azoospermia- like (Dazl), dead (Asp-Glu-Ala-Asp) box polypeptide 4 (Vasa also known as DDX4) and promyelocytic leukemia zinc finger protein (Plzf)); meiotic (synaptonemal complex protein 3 (Sycp3), mutl homolog I (Mlh1), transition protein 1/2 (Tnp1/2) and protamine 2 (Prm2); spermatocyte-specific boule-like RNA binding protein (Boule) and tektin 1 (Tekt1)) and oocyte-specific growth differentiation factor 9 (Gdf9) and zona pellucida 2 /3 (Zp2/3)) genes over 8–14 days in culture. Immunocytochemical analysis revealed expression of primordial germ cell (c-KIT, DAZL and VASA), meiotic (SYCP3, MLH1 and PROTAMINE 1), spermatocyte (ACROSIN and HAPRIN) and oocyte (GDF9 and ZP4) markers in both EBs and monolayer differentiation cultures. Western blotting revealed germ lineage-specific protein expression in Day 14 EBs. The significantly lower (P < 0.05) concentration of 5-methyl-2-deoxycytidine in differentiated EBs compared to undifferentiated EBs suggests that methylation erasure may have occurred. Oocyte-like structures obtained in monolayer differentiation stained positive for ZONA PELLUCIDA protein 4 and progressed through various embryo-like developmental stages in extended cultures.
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35
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Mouka A, Tachdjian G, Dupont J, Drévillon L, Tosca L. In Vitro Gamete Differentiation from Pluripotent Stem Cells as a Promising Therapy for Infertility. Stem Cells Dev 2016; 25:509-21. [PMID: 26873432 DOI: 10.1089/scd.2015.0230] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Generation of gametes derived in vitro from pluripotent stem cells holds promising prospects for future reproductive applications. Indeed, it provides information on molecular and cellular mechanisms underlying germ cell (GC) development and could offer a new potential treatment for infertility. Great progress has been made in derivation of gametes from embryonic stem cells, despite ethical issues. Induced pluripotent stem cells (iPSCs) technology allows the reprogramming of a differentiated somatic cell, possibly emanating from the patient, into a pluripotent state. With the emergence of iPSCs, several studies created primordial GC stage to mature gamete-like cells in vitro in mice and humans. Recent findings in GC derivation suggest that in mice, functional gametes can be generated in vitro. This strengthens the idea that it might be possible in the future to generate functional human sperm and oocytes from pluripotent stem cells in culture.
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Affiliation(s)
- Aurélie Mouka
- 1 AP-HP, Service d'Histologie, Embryologie et Cytogénétique, Hôpitaux Universitaires Paris-Sud , Clamart, France .,2 Université Paris-Sud , Le Kremlin-Bicêtre Cedex, France
| | - Gérard Tachdjian
- 1 AP-HP, Service d'Histologie, Embryologie et Cytogénétique, Hôpitaux Universitaires Paris-Sud , Clamart, France .,2 Université Paris-Sud , Le Kremlin-Bicêtre Cedex, France
| | - Joëlle Dupont
- 3 Unité de Physiologie de la Reproduction et des Comportements, Institut National de la Recherche Agronomique , Nouzilly, France
| | - Loïc Drévillon
- 1 AP-HP, Service d'Histologie, Embryologie et Cytogénétique, Hôpitaux Universitaires Paris-Sud , Clamart, France
| | - Lucie Tosca
- 1 AP-HP, Service d'Histologie, Embryologie et Cytogénétique, Hôpitaux Universitaires Paris-Sud , Clamart, France .,2 Université Paris-Sud , Le Kremlin-Bicêtre Cedex, France
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36
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de Souza GB, Costa JJN, da Cunha EV, Passos JRS, Ribeiro RP, Saraiva MVA, van den Hurk R, Silva JRV. Bovine ovarian stem cells differentiate into germ cells and oocyte-like structures after culture in vitro. Reprod Domest Anim 2016; 52:243-250. [DOI: 10.1111/rda.12886] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Accepted: 10/03/2016] [Indexed: 02/01/2023]
Affiliation(s)
- GB de Souza
- Biotechnology Nucleus of Sobral - NUBIS; Federal University of Ceara; Sobral CE Brazil
| | - JJN Costa
- Biotechnology Nucleus of Sobral - NUBIS; Federal University of Ceara; Sobral CE Brazil
| | - EV da Cunha
- Biotechnology Nucleus of Sobral - NUBIS; Federal University of Ceara; Sobral CE Brazil
| | - JRS Passos
- Biotechnology Nucleus of Sobral - NUBIS; Federal University of Ceara; Sobral CE Brazil
| | - RP Ribeiro
- Biotechnology Nucleus of Sobral - NUBIS; Federal University of Ceara; Sobral CE Brazil
| | - MVA Saraiva
- Biotechnology Nucleus of Sobral - NUBIS; Federal University of Ceara; Sobral CE Brazil
| | - R van den Hurk
- Department of Pathobiology; Faculty of Veterinary Medicine; Utrecht University; Utrecht The Netherlands
| | - JRV Silva
- Biotechnology Nucleus of Sobral - NUBIS; Federal University of Ceara; Sobral CE Brazil
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Hikabe O, Hamazaki N, Nagamatsu G, Obata Y, Hirao Y, Hamada N, Shimamoto S, Imamura T, Nakashima K, Saitou M, Hayashi K. Reconstitution in vitro of the entire cycle of the mouse female germ line. Nature 2016; 539:299-303. [PMID: 27750280 DOI: 10.1038/nature20104] [Citation(s) in RCA: 357] [Impact Index Per Article: 44.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Accepted: 09/22/2016] [Indexed: 01/12/2023]
Abstract
The female germ line undergoes a unique sequence of differentiation processes that confers totipotency to the egg. The reconstitution of these events in vitro using pluripotent stem cells is a key achievement in reproductive biology and regenerative medicine. Here we report successful reconstitution in vitro of the entire process of oogenesis from mouse pluripotent stem cells. Fully potent mature oocytes were generated in culture from embryonic stem cells and from induced pluripotent stem cells derived from both embryonic fibroblasts and adult tail tip fibroblasts. Moreover, pluripotent stem cell lines were re-derived from the eggs that were generated in vitro, thereby reconstituting the full female germline cycle in a dish. This culture system will provide a platform for elucidating the molecular mechanisms underlying totipotency and the production of oocytes of other mammalian species in culture.
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Affiliation(s)
- Orie Hikabe
- Department of Stem Cell Biology and Medicine, Graduate School of Medical Sciences, Kyushu University, Maidashi 3-1-1, Higashi-ku, Fukuoka 812-8582, Japan
| | - Nobuhiko Hamazaki
- Department of Stem Cell Biology and Medicine, Graduate School of Medical Sciences, Kyushu University, Maidashi 3-1-1, Higashi-ku, Fukuoka 812-8582, Japan
| | - Go Nagamatsu
- Department of Stem Cell Biology and Medicine, Graduate School of Medical Sciences, Kyushu University, Maidashi 3-1-1, Higashi-ku, Fukuoka 812-8582, Japan
| | - Yayoi Obata
- Department of Bioscience, Tokyo University of Agriculture, 1-1-1, Sakuragaoka, Setagaya-ku, Tokyo 156-8502, Japan
| | - Yuji Hirao
- NARO Institute of Livestock and Grassland Science, Ikenodai 2, Tsukuba 305-0901, Japan
| | - Norio Hamada
- Department of Stem Cell Biology and Medicine, Graduate School of Medical Sciences, Kyushu University, Maidashi 3-1-1, Higashi-ku, Fukuoka 812-8582, Japan.,Department of Obstetrics and Gynecology, Graduate School of Medical Sciences, Kyushu University, Maidashi 3-1-1, Higashi-ku, Fukuoka 812-8582, Japan
| | - So Shimamoto
- Department of Stem Cell Biology and Medicine, Graduate School of Medical Sciences, Kyushu University, Maidashi 3-1-1, Higashi-ku, Fukuoka 812-8582, Japan
| | - Takuya Imamura
- Department of Stem Cell Biology and Medicine, Graduate School of Medical Sciences, Kyushu University, Maidashi 3-1-1, Higashi-ku, Fukuoka 812-8582, Japan
| | - Kinichi Nakashima
- Department of Stem Cell Biology and Medicine, Graduate School of Medical Sciences, Kyushu University, Maidashi 3-1-1, Higashi-ku, Fukuoka 812-8582, Japan
| | - Mitinori Saitou
- Department of Anatomy and Cell Biology, Graduate School of Medicine, Kyoto University, Yoshida-Konoe-cho, Sakyo-ku, Kyoto 606-8501, Japan.,Center for iPS Cell Research and Application, Kyoto University, 53 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan.,Institute for Integrated Cell-Material Sciences, Kyoto University, Yoshida-Ushinomiya-cho, Sakyo-ku, Kyoto 606-8501, Japan.,JST, ERATO, Yoshida-Konoe-cho, Sakyo-ku, Kyoto 606-8501, Japan
| | - Katsuhiko Hayashi
- Department of Stem Cell Biology and Medicine, Graduate School of Medical Sciences, Kyushu University, Maidashi 3-1-1, Higashi-ku, Fukuoka 812-8582, Japan.,JST, PRESTO, Maidashi 3-1-1, Higashi-ku, Fukuoka 812-8582, Japan
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38
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Taketo T. The role of sex chromosomes in mammalian germ cell differentiation: can the germ cells carrying X and Y chromosomes differentiate into fertile oocytes? Asian J Androl 2016; 17:360-6. [PMID: 25578929 PMCID: PMC4430933 DOI: 10.4103/1008-682x.143306] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
The sexual differentiation of germ cells into spermatozoa or oocytes is strictly regulated by their gonadal environment, testis or ovary, which is determined by the presence or absence of the Y chromosome, respectively. Hence, in normal mammalian development, male germ cells differentiate in the presence of X and Y chromosomes, and female germ cells do so in the presence of two X chromosomes. However, gonadal sex reversal occurs in humans as well as in other mammalian species, and the resultant XX males and XY females can lead healthy lives, except for a complete or partial loss of fertility. Germ cells carrying an abnormal set of sex chromosomes are efficiently eliminated by multilayered surveillance mechanisms in the testis, and also, though more variably, in the ovary. Studying the molecular basis for sex-specific responses to a set of sex chromosomes during gametogenesis will promote our understanding of meiotic processes contributing to the evolution of sex determining mechanisms. This review discusses the fate of germ cells carrying various sex chromosomal compositions in mouse models, the limitation of which may be overcome by recent successes in the differentiation of functional germ cells from embryonic stem cells under experimental conditions.
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Affiliation(s)
- Teruko Taketo
- Department of Surgery, Research Institute of MUHC; Department of Biology; Department of Obstetrics and Gynecology, McGill University, Montreal, Quebec, Canada
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39
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Retinoic acid promotes the proliferation of primordial germ cell–like cells differentiated from mouse skin-derived stem cells in vitro. Theriogenology 2016; 85:408-18. [DOI: 10.1016/j.theriogenology.2015.09.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Revised: 08/17/2015] [Accepted: 09/02/2015] [Indexed: 11/23/2022]
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40
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Ge W, Chen C, De Felici M, Shen W. In vitro differentiation of germ cells from stem cells: a comparison between primordial germ cells and in vitro derived primordial germ cell-like cells. Cell Death Dis 2015; 6:e1906. [PMID: 26469955 PMCID: PMC4632295 DOI: 10.1038/cddis.2015.265] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Revised: 08/01/2015] [Accepted: 08/04/2015] [Indexed: 01/15/2023]
Abstract
Stem cells are unique cell types capable to proliferate, some of them indefinitely, while maintaining the ability to differentiate into a few or any cell lineages. In 2003, a group headed by Hans R. Schöler reported that oocyte-like cells could be produced from mouse embryonic stem (ES) cells in vitro. After more than 10 years, where have these researches reached? Which are the major successes achieved and the problems still remaining to be solved? Although during the last years, many reviews have been published about these topics, in the present work, we will focus on an aspect that has been little considered so far, namely a strict comparison between the in vitro and in vivo developmental capabilities of the primordial germ cells (PGCs) isolated from the embryo and the PGC-like cells (PGC-LCs) produced in vitro from different types of stem cells in the mouse, the species in which most investigation has been carried out. Actually, the formation and differentiation of PGCs are crucial for both male and female gametogenesis, and the faithful production of PGCs in vitro represents the basis for obtaining functional germ cells.
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Affiliation(s)
- W Ge
- Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao 266109, China
- Key Laboratory of Animal Reproduction and Germplasm Enhancement in Universities of Shandong, College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266109, China
| | - C Chen
- Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao 266109, China
- Key Laboratory of Animal Reproduction and Germplasm Enhancement in Universities of Shandong, College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266109, China
| | - M De Felici
- Department of Biomedicine and Prevention, University of Rome ‘Tor Vergata', Rome 00133, Italy
| | - W Shen
- Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao 266109, China
- Key Laboratory of Animal Reproduction and Germplasm Enhancement in Universities of Shandong, College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266109, China
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41
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Grieve KM, McLaughlin M, Dunlop CE, Telfer EE, Anderson RA. The controversial existence and functional potential of oogonial stem cells. Maturitas 2015; 82:278-81. [PMID: 26278874 DOI: 10.1016/j.maturitas.2015.07.017] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2015] [Revised: 07/18/2015] [Accepted: 07/22/2015] [Indexed: 01/20/2023]
Abstract
The regenerative potential of the mammalian ovary has been a controversial area over the last decade. Isolation of cells, termed oogonial stem cells (OSCs), from adult rodent and human ovaries has been reported, with these cells exhibiting both germ and stem cell markers in culture. When re-introduced into an ovarian somatic environment these cells have generated follicles capable of producing healthy offspring in rodents, and there is some evidence of human OSCs being able to form oocyte-like structures in a xenotransplant model. Importantly, there are no data on their potential physiological role within the ovary, and specifically no evidence that they contribute to the primordial follicle pool and thus to later stages of follicle development. The cues required for oocyte differentiation from these cells are not well understood either in vivo or in vitro, and these will need to be further elucidated to maximise their potential for therapeutic intervention. OSCs may also be of value as a model to investigate normal human germ cell differentiation. It is likely that their interactions with ovarian somatic cells and/or extracellular signals will be important in these processes. This review summarises our current knowledge on the isolation and characterisation of mammalian oogonial stem cells.
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Affiliation(s)
- Kelsey M Grieve
- MRC Centre for Reproductive Health, Queen's Medical Research Institute, University of Edinburgh, 47 Little France Crescent, Edinburgh EH16 4TJ, UK; Institute of Cell Biology and Centre for Integrative Physiology, Hugh Robson Building, University of Edinburgh, Edinburgh EH8 9XD, UK
| | - Marie McLaughlin
- Institute of Cell Biology and Centre for Integrative Physiology, Hugh Robson Building, University of Edinburgh, Edinburgh EH8 9XD, UK
| | - Cheryl E Dunlop
- MRC Centre for Reproductive Health, Queen's Medical Research Institute, University of Edinburgh, 47 Little France Crescent, Edinburgh EH16 4TJ, UK
| | - Evelyn E Telfer
- Institute of Cell Biology and Centre for Integrative Physiology, Hugh Robson Building, University of Edinburgh, Edinburgh EH8 9XD, UK
| | - Richard A Anderson
- MRC Centre for Reproductive Health, Queen's Medical Research Institute, University of Edinburgh, 47 Little France Crescent, Edinburgh EH16 4TJ, UK.
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Bahmanpour S, Zarei Fard N, Talaei-Khozani T, Hosseini A, Esmaeilpour T. Effect of BMP4 preceded by retinoic acid and co-culturing ovarian somatic cells on differentiation of mouse embryonic stem cells into oocyte-like cells. Dev Growth Differ 2015; 57:378-388. [PMID: 26041547 DOI: 10.1111/dgd.12217] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2014] [Revised: 04/12/2015] [Accepted: 04/12/2015] [Indexed: 12/28/2022]
Abstract
Bone morphogenetic protein 4 (BMP4) and retinoic acid (RA) signaling are the key regulators for germ cell and meiosis induction, respectively. Gonadal tissue also provides an appropriate microenvironment for oocyte differentiation in vivo. The current study aimed to determine whether mimicking in vivo niche is more efficient for oocyte differentiation from embryonic stem (ES) cells. Here, differentiation of mouse ES cells toward oocyte-like cells using embryoid body (EB) and monolayer protocols was induced in the presence (+BMP4) or absence (-BMP4) of BMP4. On day 5, each group was co-cultured with ovarian somatic cells in the presence or absence of RA (+RA or -RA) for an additional 14 days. Our results showed a significant increase in expression of meiotic markers in the +BMP4 condition in EB differentiation protocol. Further differentiation with ovarian somatic cells led to a subpopulation of oocyte-like cell formation. Compared to the controls, the +RA condition resulted in a significant elevation of the meiotic gene expression in contrast to Oct4 that significantly decreased in both protocols. In the cells pre-treated with BMP4 and then exposed to RA in the monolayer differentiation protocol, the gene expression levels of germ cell, Mvh, and maturation markers, Cx37, Zp2, and Gdf9, were also upregulated significantly. Therefore, it can be concluded that +BMP4 and +RA along with ovarian somatic cell co-culture improved the rate of in vitro oocyte differentiation.
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Affiliation(s)
- Soghra Bahmanpour
- Stem Cell Research Laboratory, Department of Anatomical Sciences, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Nehleh Zarei Fard
- Stem Cell Research Laboratory, Department of Anatomical Sciences, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Tahereh Talaei-Khozani
- Stem Cell Research Laboratory, Department of Anatomical Sciences, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ahmad Hosseini
- Cancer Research Institute, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Tahereh Esmaeilpour
- Stem Cell Research Laboratory, Department of Anatomical Sciences, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
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43
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Hu X, Lu H, Cao S, Deng YL, Li QJ, Wan Q, Yie SM. Stem cells derived from human first-trimester umbilical cord have the potential to differentiate into oocyte-like cells in vitro. Int J Mol Med 2015; 35:1219-29. [PMID: 25760093 PMCID: PMC4380121 DOI: 10.3892/ijmm.2015.2132] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Accepted: 02/12/2015] [Indexed: 11/10/2022] Open
Abstract
Compared to stem cells derived from human term umbilical cord, stem cells derived from human first-trimester umbilical cord (hFTUC) exhibit a significantly greater proliferative potential, and more efficiency in terms of their in vitro differentiation. In the present study, we investigated whether hFTUC-derived stem cells are able to differentiate into germ cells. The hFTUC-derived stem cells were first isolated, expanded and then cultured in differentiation medium containing human follicular fluid, follicle-stimulating hormone (FSH)/luteinizing hormone (LH) and estradiol for 24 days. During the period of induction, a subpopulation of the cultured cells appeared that had a morphological resemblance to primordial germ cells (PGCs) and cumulus-oocyte complex (COC)-like cells, and oocyte-like cells (OLCs). The PGC-like cells expressed specific markers indicative of germ cell formation such as octamer-binding transcription factor 4 (OCT4), stage-specific embryonic antigen 1 (SSEA1), B lymphocyte-induced maturation protein-1 (BLIMP1), PR domain containing 14 (PRDM14), transcription factor AP-2 gamma (TFAP2C), VASA, STELLA, deleted in azoospermia-like (DAZL) and interferon-induced transmembrane protein 3 (IFITM3). The OLCs, which contained a single germinal vesicle, expressed oocyte-specific markers, such as synaptonemal complex protein 3 (SCP3), growth/differentiation factor-9 (GDF9), GDF9B and zona pellucida (ZP)1, ZP2 and ZP3. The COC-like cells secreted estradiol, vascular endothelial growth factor and leukemia inhibitory factor. Thus, our findings suggest that hFTUC-derived stem cells have an intrinsic ability to differentiate into OLCs, which may provide an in vitro model for the identification of factors involved in germ cell formation and differentiation.
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Affiliation(s)
- Xiang Hu
- Department of Gynecology and Obstetrics, The Second Medical College/Teaching Hospital, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610041, P.R. China
| | - Hua Lu
- Department of Gynecology and Obstetrics, The Second Medical College/Teaching Hospital, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610041, P.R. China
| | - Sheng Cao
- Department of Gynecology and Obstetrics, The Second Medical College/Teaching Hospital, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610041, P.R. China
| | - Yan-Li Deng
- Department of Gynecology and Obstetrics, The Second Medical College/Teaching Hospital, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610041, P.R. China
| | - Qi-Jia Li
- Department of Gynecology and Obstetrics, The Second Medical College/Teaching Hospital, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610041, P.R. China
| | - Qian Wan
- Department of Gynecology and Obstetrics, The Second Medical College/Teaching Hospital, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610041, P.R. China
| | - Shang-Mian Yie
- Department of Gynecology and Obstetrics, The Second Medical College/Teaching Hospital, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610041, P.R. China
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44
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Zeng F, Huang F, Guo J, Hu X, Liu C, Wang H. Emerging methods to generate artificial germ cells from stem cells. Biol Reprod 2015; 92:89. [PMID: 25715792 DOI: 10.1095/biolreprod.114.124800] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2014] [Accepted: 02/16/2015] [Indexed: 12/29/2022] Open
Abstract
Germ cells are responsible for the transmission of genetic and epigenetic information across generations. At present, the number of infertile couples is increasing worldwide; these infertility problems can be traced to environmental pollutions, infectious diseases, cancer, psychological or work-related stress, and other factors, such as lifestyle and genetics. Notably, lack of germ cells and germ cell loss present real obstacles in infertility treatment. Recent research aimed at producing gametes through artificial germ cell generation from stem cells may offer great hope for affected couples to treat infertility in the future. Therefore, this rapidly emerging area of artificial germ cell generation from nongermline cells has gained considerable attention from basic and clinical research in the fields of stem cell biology, developmental biology, and reproductive biology. Here, we review the state of the art in artificial germ cell generation.
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Affiliation(s)
- Fanhui Zeng
- The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, Enshi, China
| | - Fajun Huang
- School of Medical Science, Hubei University for Nationalities, Enshi, China
| | - Jingjing Guo
- College of Life and Environmental Sciences, Shanghai Normal University, Shanghai, China
| | - Xingchang Hu
- College of Life and Environmental Sciences, Shanghai Normal University, Shanghai, China
| | - Changbai Liu
- The Institute of Molecular Biology, China Three Gorges University, Yichang, China
| | - Hu Wang
- Medical School, China Three Gorges University, Yichang, China
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Effect of Rat Medicated Serum Containing Zuo Gui Wan and/or You Gui Wan on the Differentiation of Stem Cells Derived from Human First Trimester Umbilical Cord into Oocyte-Like Cells In Vitro. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 2015:825805. [PMID: 25688279 PMCID: PMC4320897 DOI: 10.1155/2015/825805] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/17/2014] [Revised: 09/16/2014] [Accepted: 10/27/2014] [Indexed: 02/06/2023]
Abstract
Zuo Gui Wan (ZGW) and You Gui Wan (YGW) are two classic formulas used in clinical treatment of infertility in traditional Chinese medicine (TCM). However, the actions of the formulas remain to be proven at the cellular and molecular levels. In this study, we investigate whether the two formulas have any effect on germ cell formation and differentiation by culturing rat medicated serums containing YGW or ZGW with stem cells derived from human first trimester umbilical cord. Our results showed that while the normal rat serums had no significant effects, the rat medicated serums had significant effects on the differentiation of the stem cells into oocyte-like cells (OLCs) based on (1) cell morphological changes that resembled purative cumulus-oocyte complexes (COCs); (2) expressions of specific markers that were indicative of germ cell formation and oocyte development; and (3) estradiol production by the COC-like cells. Furthermore, ZGW medicated serums exhibited more obvious effects on specific gene expressions of germ cells, whereas YGW medicated serums showed stronger effects on estradiol production. Accordingly, our study provides evidence demonstrating for the first time that one of molecular and cellular actions of YGW or ZGW in treating human reproductive dysfunctions may be through an enhancement of neooogenesis.
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46
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Hendriks S, Dancet EA, van Pelt AM, Hamer G, Repping S. Artificial gametes: a systematic review of biological progress towards clinical application. Hum Reprod Update 2015; 21:285-96. [DOI: 10.1093/humupd/dmv001] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2013] [Accepted: 12/29/2014] [Indexed: 01/15/2023] Open
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47
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Ishii T. Human iPS Cell-Derived Germ Cells: Current Status and Clinical Potential. J Clin Med 2014; 3:1064-83. [PMID: 26237592 PMCID: PMC4470171 DOI: 10.3390/jcm3041064] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Revised: 09/17/2014] [Accepted: 09/22/2014] [Indexed: 01/15/2023] Open
Abstract
Recently, fertile spermatozoa and oocytes were generated from mouse induced pluripotent (iPS) cells using a combined in vitro and in vivo induction system. With regard to germ cell induction from human iPS cells, progress has been made particularly in the male germline, demonstrating in vitro generation of haploid, round spermatids. Although iPS-derived germ cells are expected to be developed to yield a form of assisted reproductive technology (ART) that can address unmet reproductive needs, genetic and/or epigenetic instabilities abound in iPS cell generation and germ cell induction. In addition, there is still room to improve the induction protocol in the female germline. However, rapid advances in stem cell research are likely to make such obstacles surmountable, potentially translating induced germ cells into the clinical setting in the immediate future. This review examines the current status of the induction of germ cells from human iPS cells and discusses the clinical potential, as well as future directions.
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Affiliation(s)
- Tetsuya Ishii
- Office of Health and Safety, Hokkaido University, Sapporo 060-0808, Japan.
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48
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Liu T, Huang Y, Bu Y, Zhao Y, Zou G, Liu Z. Induction of E-cadherin+ human amniotic fluid cell differentiation into oocyte-like cells via culture in medium supplemented with follicular fluid. Mol Med Rep 2014; 10:21-8. [PMID: 24788191 PMCID: PMC4068722 DOI: 10.3892/mmr.2014.2199] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2013] [Accepted: 03/17/2014] [Indexed: 12/20/2022] Open
Abstract
Pluripotent human amniotic fluid cells (HuAFCs) can differentiate into various types of somatic cell in vitro. However, their differentiation into oocyte-like cells has never been described to the best of our knowledge. In the present study, differentiation of E-cadherin+ and E-cadherin− HuAFC sub-populations into oocyte-like cells was induced via culture in medium containing bovine follicular fluid and β-mercaptoethanol. The E-cadherin+ HuAFCs expressed DAZL highly. Post-induction, cells with an oocyte-like phenotype were found among the E-cadherin+ HuAFCs, expressing markers specific to germ cells and oocytes (VASA, ZP3 and GDF9) and meiosis (DMC1 and SCP3). When specific small interfering RNA (siRNA) was used to suppress E-cadherin in the E-cadherin+ HuAFCs, the levels of DAZL expression were reduced. Post-induction, the morphology of the siRNA-E-cadherin HuAFCs was poorer and the expression levels of germ cell-specific markers were lower compared with those of the siRNA-mock HuAFCs. Therefore, E-cadherin+ HuAFCs could be more easily induced to differentiate into oocyte-like cells by bovine follicular fluid and β-mercaptoethanol. In addition, the E-cadherin+ HuAFCs exhibited potential characteristics of DAZL protein expression, and thus it was conjectured that bovine follicular fluid acts on DAZL protein and promotes E-cadherin+ HuAFC differentiation into oocyte-like cells.
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Affiliation(s)
- Te Liu
- Shanghai Geriatric Institute of Chinese Medicine, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200031, P.R. China
| | - Yongyi Huang
- School of Life Science and Technology, Tongji University, Shanghai 200092, P.R. China
| | - Yanzhen Bu
- College of Life Science, Henan Normal University, Xinxiang 453007, P.R. China
| | - Yanhui Zhao
- Department of Oral and Craniofacial Science, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, P.R. China
| | - Gang Zou
- Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai 200040, P.R. China
| | - Zhixue Liu
- School of Life Science and Technology, Tongji University, Shanghai 200092, P.R. China
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Botman O, Wyns C. Induced pluripotent stem cell potential in medicine, specifically focused on reproductive medicine. Front Surg 2014; 1:5. [PMID: 25671222 PMCID: PMC4313692 DOI: 10.3389/fsurg.2014.00005] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2013] [Accepted: 03/05/2014] [Indexed: 01/15/2023] Open
Abstract
Since 2006, several laboratories have proved that somatic cells can be reprogramed into induced pluripotent stem cells (iPSCs). iPSCs have enormous potential in stem cell biology as they can give rise to numerous cell lineages, including the three germ layers. In this review, we discuss past and recent advances in human iPSCs used for modeling diseases in vitro, screening drugs to test new treatments, and autologous cell and tissue regenerative therapies, with a special focus on reproductive medicine applications. While this latter field of research is still in its infancy, it holds great promise for investigating germ cell development and studying the genetic and physiopathological mechanisms of infertility. A major cause of infertility is the absence of germ cells in the testes, mainly due to genetic background or as a consequence of gonadotoxic treatments. For these patients, no effective fertility restoration strategy has so far been identified. The derivation of germ cells from iPSCs represents an alternative source of stem cells able to differentiate into spermatozoa. Lessons learned from animal models as well as studies on human iPSCs for reproductive purposes are reviewed.
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Affiliation(s)
- Olivier Botman
- Gynecology Unit, Medical School, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain , Brussels , Belgium
| | - Christine Wyns
- Gynecology Unit, Medical School, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain , Brussels , Belgium ; Cliniques Universitaires Saint-Luc, Université Catholique de Louvain , Brussels , Belgium
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50
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Duggal G, Heindryckx B, Deroo T, De Sutter P. Use of pluripotent stem cells for reproductive medicine: are we there yet? Vet Q 2014; 34:42-51. [DOI: 10.1080/01652176.2014.891061] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
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