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González-Gil A, Sánchez-Maldonado B, Rojo C, Flor-García M, Queiroga FL, Ovalle S, Ramos-Ruiz R, Fuertes-Recuero M, Picazo RA. Proneurogenic actions of follicle-stimulating hormone on neurospheres derived from ovarian cortical cells in vitro. BMC Vet Res 2024; 20:372. [PMID: 39160565 PMCID: PMC11334536 DOI: 10.1186/s12917-024-04203-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Accepted: 07/23/2024] [Indexed: 08/21/2024] Open
Abstract
BACKGROUND Neural stem and progenitor cells (NSPCs) from extra-neural origin represent a valuable tool for autologous cell therapy and research in neurogenesis. Identification of proneurogenic biomolecules on NSPCs would improve the success of cell therapies for neurodegenerative diseases. Preliminary data suggested that follicle-stimulating hormone (FSH) might act in this fashion. This study was aimed to elucidate whether FSH promotes development, self-renewal, and is proneurogenic on neurospheres (NS) derived from sheep ovarian cortical cells (OCCs). Two culture strategies were carried out: (a) long-term, 21-days NS culture (control vs. FSH group) with NS morphometric evaluation, gene expression analyses of stemness and lineage markers, and immunolocalization of NSPCs antigens; (b) NS assay to demonstrate FSH actions on self-renewal and differentiation capacity of NS cultured with one of three defined media: M1: positive control with EGF/FGF2; M2: control; and M3: M2 supplemented with FSH. RESULTS In long-term cultures, FSH increased NS diameters with respect to control group (302.90 ± 25.20 μm vs. 183.20 ± 7.63 on day 9, respectively), upregulated nestin (days 15/21), Sox2 (day 21) and Pax6 (days 15/21) and increased the percentages of cells immunolocalizing these proteins. During NS assays, FSH stimulated NSCPs proliferation, and self-renewal, increasing NS diameters during the two expansion periods and the expression of the neuron precursor transcript DCX during the second one. In the FSH-group there were more frequent cell-bridges among neighbouring NS. CONCLUSIONS FSH is a proneurogenic hormone that promotes OCC-NSPCs self-renewal and NS development. Future studies will be necessary to support the proneurogenic actions of FSH and its potential use in basic and applied research related to cell therapy.
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Affiliation(s)
- Alfredo González-Gil
- Department of Physiology, School of Veterinary Medicine, Complutense University of Madrid, Avda. Puerta de Hierro SN, Madrid, 28040, Spain.
| | - Belén Sánchez-Maldonado
- Department of Animal Medicine and Surgery, School of Veterinary Medicine, Complutense University of Madrid, Madrid, 28040, Spain
| | - Concepción Rojo
- Department of Anatomy and Embriology, School of Veterinary Medicine, University Complutense of Madrid, Madrid, 28040, Spain
| | - Miguel Flor-García
- Department of Molecular Neuropathology, Centro de Biología Molecular "Severo Ochoa" (CBMSO), Spanish Research Council (CSIC)-Universidad Autónoma de Madrid, Madrid, 28049, Spain
- Department of Molecular Biology, Faculty of Sciences, Universidad Autónoma de Madrid, Madrid, 28049, Spain
| | - Felisbina Luisa Queiroga
- Centre for the Study of Animal Science, CECA-ICETA, University of Porto, Porto, Portugal.
- Animal and Veterinary Research Centre (CECAV), University of Trás-os-Montes and Alto Douro, Quinta dos Prados, Vila Real, 5000-801, Portugal.
| | - Susana Ovalle
- Genomic Unit Cantoblanco, Fundación Parque Científico de Madrid. C/ Faraday 7, Madrid, 28049, Spain
| | - Ricardo Ramos-Ruiz
- Genomic Unit Cantoblanco, Fundación Parque Científico de Madrid. C/ Faraday 7, Madrid, 28049, Spain
| | - Manuel Fuertes-Recuero
- Department of Physiology, School of Veterinary Medicine, Complutense University of Madrid, Avda. Puerta de Hierro SN, Madrid, 28040, Spain
| | - Rosa Ana Picazo
- Department of Physiology, School of Veterinary Medicine, Complutense University of Madrid, Avda. Puerta de Hierro SN, Madrid, 28040, Spain
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Wartalski K, Wiater J, Maciak P, Pastuła A, Lis GJ, Samiec M, Trzcińska M, Duda M. Anabolic Steroids Activate the NF-κB Pathway in Porcine Ovarian Putative Stem Cells Independently of the ZIP-9 Receptor. Int J Mol Sci 2024; 25:2833. [PMID: 38474077 DOI: 10.3390/ijms25052833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 02/13/2024] [Accepted: 02/27/2024] [Indexed: 03/14/2024] Open
Abstract
Boldenone (Bdn) and nandrolone (Ndn) are anabolic androgenic steroids (AASs) that, as our previous studies have shown, may increase the risk of neoplastic transformation of porcine ovarian putative stem cells (poPSCs). The NF-κB pathway may be important in the processes of carcinogenesis and tumour progression. Therefore, in this work, we decided to test the hypothesis of whether Bdn and Ndn can activate the NF-κB pathway by acting through the membrane androgen receptor ZIP-9. For this purpose, the expression profiles of both genes involved in the NF-κB pathway and the gene coding for the ZIP-9 receptor were checked. The expression and localization of proteins of this pathway in poPSCs were also examined. Additionally, the expression of the ZIP-9 receptor and the concentration of the NF-κB1 and 2 protein complex were determined. Activation of the NF-κB pathway was primarily confirmed by an increase in the relative abundances of phosphorylated forms of RelA protein and IκBα inhibitor. Reduced quantitative profiles pinpointed not only for genes representing this pathway but also for unphosphorylated proteins, and, simultaneously, decreased concentration of the NF-κB1 and 2 complex may indicate post-activation silencing by negative feedback. However, the remarkably and sustainably diminished expression levels noticed for the SLC39A9 gene and ZIP-9 protein suggest that this receptor does not play an important role in the regulation of the NF-κB pathway.
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Affiliation(s)
- Kamil Wartalski
- Department of Histology, Jagiellonian University Medical College, Kopernika 7 Street, 31-034 Krakow, Poland
| | - Jerzy Wiater
- Department of Histology, Jagiellonian University Medical College, Kopernika 7 Street, 31-034 Krakow, Poland
| | - Patrycja Maciak
- Department of Endocrinology, Institute of Zoology and Biomedical Research, Faculty of Biology, Jagiellonian University in Krakow, Gronostajowa 9 Street, 30-387 Krakow, Poland
| | - Agnieszka Pastuła
- Department of Genetics and Evolutionism, Institute of Zoology and Biomedical Research, Faculty of Biology, Jagiellonian University in Krakow, Gronostajowa 9 Street, 30-387 Krakow, Poland
| | - Grzegorz J Lis
- Department of Histology, Jagiellonian University Medical College, Kopernika 7 Street, 31-034 Krakow, Poland
| | - Marcin Samiec
- Department of Reproductive Biotechnology and Cryoconservation, National Research Institute of Animal Production, Krakowska 1 Street, 32-083 Balice, Poland
| | - Monika Trzcińska
- Department of Reproductive Biotechnology and Cryoconservation, National Research Institute of Animal Production, Krakowska 1 Street, 32-083 Balice, Poland
| | - Małgorzata Duda
- Department of Endocrinology, Institute of Zoology and Biomedical Research, Faculty of Biology, Jagiellonian University in Krakow, Gronostajowa 9 Street, 30-387 Krakow, Poland
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Chen J, Wang L, Tian GG, Wang X, Li X, Wu J. Metformin Promotes Proliferation of Mouse Female Germline Stem Cells by Histone Acetylation Modification of Traf2. Stem Cell Rev Rep 2023; 19:2329-2340. [PMID: 37354386 DOI: 10.1007/s12015-023-10575-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/14/2023] [Indexed: 06/26/2023]
Abstract
Female germline stem cells (FGSCs) are adult stem cells that can both self-renew and differentiate into mature oocytes. Although small-molecule compounds are capable of regulating the development of FGSCs, the effects and mechanisms of action of metformin, a commonly used drug for diabetes, on FGSCs are largely unknown. Here, we found that metformin promoted the viability and proliferation of FGSCs through H3K27ac modification. To elucidate the mechanism by which metformin promoted FGSCs proliferation, Chromatin Immunoprecipitation Sequencing of histone 3 lysine 27 acetylation (H3K27ac) in FGSCs was performed with or without metformin-treatment. The results indicate that metformin modulates FGSCs via the mitogen-activated protein kinase (MAPK) signaling pathway, and tumor necrosis factor receptor associated factor 2 (Traf2) was identified as an important target gene for H3K27ac modification during FGSCs proliferation. Subsequent experiments showed metformin promoted FGSCs proliferation by H3K27ac modification of Traf2 to regulate MAPK signaling. Our findings deepen understanding of how H3K27ac modifications regulate FGSCs development and provide a theoretical basis for the prevention and treatment of premature ovarian failure, polycystic ovary syndrome, infertility, and related diseases.
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Affiliation(s)
- Jiaqi Chen
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, 750004, People's Republic of China
| | - Lu Wang
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, 750004, People's Republic of China
| | - Geng G Tian
- Key Laboratory for the Genetics of Developmental & Neuropsychiatric Disorders (Ministry of Education), Bio-X Institutes, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Xiang Wang
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, 750004, People's Republic of China
| | - Xiaoyong Li
- Key Laboratory for the Genetics of Developmental & Neuropsychiatric Disorders (Ministry of Education), Bio-X Institutes, Shanghai Jiao Tong University, Shanghai, 200240, China.
| | - Ji Wu
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, 750004, People's Republic of China.
- Key Laboratory for the Genetics of Developmental & Neuropsychiatric Disorders (Ministry of Education), Bio-X Institutes, Shanghai Jiao Tong University, Shanghai, 200240, China.
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Starzyński D, Rzeszotek S, Kolasa A, Grabowska M, Wiszniewska B, Kudrymska A, Karpińska K, Tołoczko-Grabarek A, Janiec A, Myszka A, Rynio P, Syrenicz A, Sowińska-Przepiera E. Pilot Study: FSHR Expression in Neuroendocrine Tumors of the Appendix. J Clin Med 2023; 12:5086. [PMID: 37568488 PMCID: PMC10419379 DOI: 10.3390/jcm12155086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 07/27/2023] [Accepted: 07/30/2023] [Indexed: 08/13/2023] Open
Abstract
Appendix neuroendocrine neoplasm (ANEN) treatment is based on tumor size and proliferation markers. Recently, the role of the follicle-stimulating hormone receptor (FSHR) from the clinical perspective has also been increasingly discussed. The FSHR is expressed in the endothelial cells of both intratumoral and peritumoral blood vessels, where it contributes to neoangiogenesis and blood vessel remodeling. FSHR expression is associated with a range of tumor types, such as gastrointestinal tumors, and it is not detected in healthy tissues located more than 10 mm from the tumor site or in tumor lymphatics. In this study, we evaluated the expression of FSHR and CD31 in the blood vessels of ANENs in females and males with confirmed histopathology. We conducted a quantitative analysis of the immunohistochemical reactions and found a higher number of microvessels in the mucosa and submucosa of neuroendocrine tumors in the appendix. A higher level of FSHR expression was observed in women. Future research should consider whether an elevated number of blood vessels along with a strong pattern of FSHR expression may influence future treatment strategies.
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Affiliation(s)
- Dariusz Starzyński
- Department of Endocrinology, Metabolic and Internal Diseases, Faculty of Medicine and Dentistry, Pomeranian Medical University in Szczecin, Unii Lubelskiej 1, 70-252 Szczecin, Poland; (D.S.); (A.J.); (A.M.); (A.S.); (E.S.-P.)
| | - Sylwia Rzeszotek
- Department of Histology and Embryology, Faculty of Medicine and Dentistry, Pomeranian Medical University in Szczecin, Powstańców Wlkp. 72, 70-111 Szczecin, Poland; (A.K.); (B.W.)
| | - Agnieszka Kolasa
- Department of Histology and Embryology, Faculty of Medicine and Dentistry, Pomeranian Medical University in Szczecin, Powstańców Wlkp. 72, 70-111 Szczecin, Poland; (A.K.); (B.W.)
| | - Marta Grabowska
- Department of Histology and Developmental Biology, Faculty of Health Sciences, Pomeranian Medical University, Żołnierska 48, 71-210 Szczecin, Poland;
| | - Barbara Wiszniewska
- Department of Histology and Embryology, Faculty of Medicine and Dentistry, Pomeranian Medical University in Szczecin, Powstańców Wlkp. 72, 70-111 Szczecin, Poland; (A.K.); (B.W.)
| | - Aleksandra Kudrymska
- Department of Pathomorphology, Faculty of Medicine and Dentistry, Pomeranian Medical University in Szczecin, Unii Lubelskiej 1, 70-252 Szczecin, Poland; (A.K.); (K.K.)
| | - Katarzyna Karpińska
- Department of Pathomorphology, Faculty of Medicine and Dentistry, Pomeranian Medical University in Szczecin, Unii Lubelskiej 1, 70-252 Szczecin, Poland; (A.K.); (K.K.)
| | - Aleksandra Tołoczko-Grabarek
- Department of Genetics and Pathomorphology, Faculty of Medicine and Dentistry, Pomeranian Medical University in Szczecin, Powstańców Wlkp. 72, 70-111 Szczecin, Poland;
| | - Agnieszka Janiec
- Department of Endocrinology, Metabolic and Internal Diseases, Faculty of Medicine and Dentistry, Pomeranian Medical University in Szczecin, Unii Lubelskiej 1, 70-252 Szczecin, Poland; (D.S.); (A.J.); (A.M.); (A.S.); (E.S.-P.)
| | - Aleksandra Myszka
- Department of Endocrinology, Metabolic and Internal Diseases, Faculty of Medicine and Dentistry, Pomeranian Medical University in Szczecin, Unii Lubelskiej 1, 70-252 Szczecin, Poland; (D.S.); (A.J.); (A.M.); (A.S.); (E.S.-P.)
| | - Paweł Rynio
- Department of Vascular Surgery, General Surgery and Angiology, Faculty of Medicine and Dentistry, Pomeranian Medical University in Szczecin, 70-111 Szczecin, Poland;
| | - Anhelli Syrenicz
- Department of Endocrinology, Metabolic and Internal Diseases, Faculty of Medicine and Dentistry, Pomeranian Medical University in Szczecin, Unii Lubelskiej 1, 70-252 Szczecin, Poland; (D.S.); (A.J.); (A.M.); (A.S.); (E.S.-P.)
| | - Elżbieta Sowińska-Przepiera
- Department of Endocrinology, Metabolic and Internal Diseases, Faculty of Medicine and Dentistry, Pomeranian Medical University in Szczecin, Unii Lubelskiej 1, 70-252 Szczecin, Poland; (D.S.); (A.J.); (A.M.); (A.S.); (E.S.-P.)
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5
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Mossa F, Evans ACO. Review: The ovarian follicular reserve - implications for fertility in ruminants. Animal 2023; 17 Suppl 1:100744. [PMID: 37567673 DOI: 10.1016/j.animal.2023.100744] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 02/03/2023] [Accepted: 02/06/2023] [Indexed: 08/13/2023] Open
Abstract
Ruminants are born with a finite number of healthy ovarian follicles and oocytes (ovarian reserve) and germ cell proliferation in the developing foetal gonad predominantly occurs during early gestation. Two markers have been established to reliably estimate the size of the ovarian reserve in cattle: the number of antral follicles ≤3 mm in diameter recruited per follicular wave (Antral Follicle Count, AFC) and peripheral concentrations of the Anti-Müllerian hormone (AMH). Studies that used one or both indicators show that the size of ovarian reserve varies greatly among age-matched individuals, but is highly repeatable in the same animal. Conditions during prenatal life are likely among the causes of such variation in the ovarian reserve. In addition, the size of the ovarian reserve is a moderately heritable trait in cattle. The association between ovarian reserve and fertility is controversial. Several studies indicate that cattle with a low ovarian reserve have phenotypic characteristics that are associated with suboptimal fertility. On the contrary, the presence and absence of a positive association between AFC and/or AMH and fertility measures (i.e. no. on services/conception, pregnancy rates, pregnancy loss) have been equally reported in cattle. In conclusion, the size of the ovarian reserve in the progeny can be enhanced by improving management of the dam from preconception to early gestation and also through genetic selection. However, although the ovarian reserve may be among the determinants of reproductive success in ruminants, the use of AFC/AMH as reliable predictors of fertility is yet to be established. Furthermore, the possibility that there is a complex interaction of AFC, AMH and reproduction has yet to be fully characterised and exploited to improve fertility in cattle.
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Affiliation(s)
- F Mossa
- Department of Veterinary Medicine, University of Sassari, Via Vienna 2, 07100 Sassari, Italy.
| | - A C O Evans
- School of Agriculture and Food Science, College of Health and Agricultural Sciences, University College Dublin, Dublin 4, Ireland
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Goszczynski DE, Navarro M, Mutto AA, Ross PJ. Review: Embryonic stem cells as tools for in vitro gamete production in livestock. Animal 2023; 17 Suppl 1:100828. [PMID: 37567652 DOI: 10.1016/j.animal.2023.100828] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 04/13/2023] [Accepted: 04/20/2023] [Indexed: 08/13/2023] Open
Abstract
The goal of in vitro gametogenesis is to reproduce the events of sperm and oocyte development in the laboratory. Significant advances have been made in the mouse in the last decade, but evolutionary divergence from the murine developmental program has prevented the replication of these advances in large mammals. In recent years, intensive work has been done in humans, non-human primates and livestock to elucidate species-specific differences that regulate germ cell development, due to the number of potential applications. One of the most promising applications is the use of in vitro gametes to optimize the spread of elite genetics in cattle. In this context, embryonic stem cells have been posed as excellent candidates for germ cell platforms. Here, we present the most relevant advances in in vitro gametogenesis of interest to livestock science, including new types of pluripotent stem cells with potential for germline derivation, characterization of the signaling environment in the gonadal niche, and experimental systems used to reproduce different stages of germ cell development in the laboratory.
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Affiliation(s)
- D E Goszczynski
- Instituto de Investigaciones Biotecnológicas "Dr. Rodolfo Ugalde"- UNSAM-CONICET, Buenos Aires CP 1650, Argentina
| | - M Navarro
- Instituto de Investigaciones Biotecnológicas "Dr. Rodolfo Ugalde"- UNSAM-CONICET, Buenos Aires CP 1650, Argentina
| | - A A Mutto
- Instituto de Investigaciones Biotecnológicas "Dr. Rodolfo Ugalde"- UNSAM-CONICET, Buenos Aires CP 1650, Argentina
| | - P J Ross
- Department of Animal Science, University of California Davis, Davis, CA, USA; STgenetics, Navasota, TX, USA.
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Zheng K, Hong W, Ye H, Zhou Z, Ling S, Li Y, Dai Y, Zhong Z, Yang Z, Zheng Y. Chito-oligosaccharides and macrophages have synergistic effects on improving ovarian stem cells function by regulating inflammatory factors. J Ovarian Res 2023; 16:76. [PMID: 37060101 PMCID: PMC10103396 DOI: 10.1186/s13048-023-01143-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Accepted: 03/19/2023] [Indexed: 04/16/2023] Open
Abstract
BACKGROUND Chronic low-grade inflammation and ovarian germline stem cells (OGSCs) aging are important reasons for the decline of ovarian reserve function, resulting in ovarian aging and infertility. Regulation of chronic inflammation is expected to promote the proliferation and differentiation of OGSCs, which will become a key means for maintaining and remodeling ovarian function. Our previous study demonstrated that Chitosan Oligosaccharides (Cos) promoted the OGSCs proliferation and remodelled the ovarian function through improving the secretion of immune related factors,but the mechanism remains unclear, and the role of macrophages, the important source of various inflammatory mediators in the ovary needs to be further studied. In this study, we used the method of macrophages and OGSCs co-culture to observe the effect and mechanism of Cos on OGSCs, and explore what contribution macrophages give during this process. Our finding provides new drug treatment options and methods for the prevention and treatment of premature ovarian failure and infertility. METHODS We used the method of macrophages and OGSCs co-culture to observe the effect and mechanism of Cos on OGSCs, and explore the important contribution of macrophages in it. The immunohistochemical staining was used to locate the OGSCs in the mouse ovary. Immunofluorescent staining, RT-qPCR and ALP staining were used to identify the OGSCs. CCK-8 and western blot were used to evaluate the OGSCs proliferation. β-galactosidase(SA-β-Gal) staining and western blot were used to detect the changing of cyclin-dependent kinase inhibitor 1A(P21), P53, Recombinant Sirtuin 1(SIRT1) and Recombinant Sirtuin 3(SIRT3). The levels of immune factors IL-2, IL-10, TNF-α and TGF-β were explored by using Western blot and ELISA. RESULTS We found that Cos promoted OGSCs proliferation in a dose-and time-dependent manner, accompanied by IL-2, TNF-α increase and IL-10, TGF-β decrease. Mouse monocyte-macrophages Leukemia cells(RAW) can also produce the same effect as Cos. When combined with Cos, it can enhance the proliferative effect of Cos in OGSCs, and further increase IL-2, TNF-α and further decrease IL-10, TGF-β. The macrophages can enhance the proliferative effect of Cos in OGSCs is also associated with the further increase in IL-2, TNF-α and the further decrease in IL-10, TGF-β. In this study, we determined that the anti-aging genes SIRT-1 and SIRT-3 protein levels were increased by Cos and RAW respectively, whereas the senescence-associated SA-β-Gal and aging genes P21 and P53 were decreased. Cos and RAW had a protective effect on OGSCs delaying aging. Furthermore, RAW can further decrease the SA-β-Gal and aging genes P21 and P53 by Cos, and further increase SIRT1 and SIRT3 protein levels in OGSCs by Cos. CONCLUSION In conclusion, Cos and macrophages have synergistic effects on improving OGSCs function and delaying ovarian aging by regulating inflammatory factors.
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Affiliation(s)
- K Zheng
- Reproductive Health Department, Shenzhen Traditional Chinese Medicine Hospital, the Fourth Clinical Medical College of Guangzhou University of Traditional Chinese Medicine, Shenzhen, China
| | - Wenli Hong
- Reproductive Health Department, Shenzhen Traditional Chinese Medicine Hospital, the Fourth Clinical Medical College of Guangzhou University of Traditional Chinese Medicine, Shenzhen, China
- Shenzhen University Health Science Center, Shenzhen, China
| | - Haifeng Ye
- Institute of Regenerative Biology and Medicine, Helmholtz Zentrum München, München, Germany
| | - Ziqiong Zhou
- Reproductive Health Department, Shenzhen Traditional Chinese Medicine Hospital, the Fourth Clinical Medical College of Guangzhou University of Traditional Chinese Medicine, Shenzhen, China
| | - Shuyi Ling
- Reproductive Health Department, Shenzhen Traditional Chinese Medicine Hospital, the Fourth Clinical Medical College of Guangzhou University of Traditional Chinese Medicine, Shenzhen, China
| | - Yuan Li
- Reproductive Health Department, Shenzhen Traditional Chinese Medicine Hospital, the Fourth Clinical Medical College of Guangzhou University of Traditional Chinese Medicine, Shenzhen, China
| | - Yuqing Dai
- Reproductive Health Department, Shenzhen Traditional Chinese Medicine Hospital, the Fourth Clinical Medical College of Guangzhou University of Traditional Chinese Medicine, Shenzhen, China
| | - Zhisheng Zhong
- Reproductive Health Department, Shenzhen Traditional Chinese Medicine Hospital, the Fourth Clinical Medical College of Guangzhou University of Traditional Chinese Medicine, Shenzhen, China
| | - Ziwei Yang
- Reproductive Health Department, Shenzhen Traditional Chinese Medicine Hospital, the Fourth Clinical Medical College of Guangzhou University of Traditional Chinese Medicine, Shenzhen, China.
| | - Yuehui Zheng
- Reproductive Health Department, Shenzhen Traditional Chinese Medicine Hospital, the Fourth Clinical Medical College of Guangzhou University of Traditional Chinese Medicine, Shenzhen, China.
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Patel H, Bhartiya D, Parte S. Correction: Further characterization of adult sheep ovarian stem cells and their involvement in neo-oogenesis and follicle assembly. J Ovarian Res 2023; 16:60. [PMID: 36964613 PMCID: PMC10037860 DOI: 10.1186/s13048-023-01139-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/26/2023] Open
Affiliation(s)
- Hiren Patel
- Stem Cell Biology Department, ICMR-National Institute for Research in Reproductive Health, Jehangir Merwanji Street, Parel, Mumbai, 400 012, India
| | - Deepa Bhartiya
- Stem Cell Biology Department, ICMR-National Institute for Research in Reproductive Health, Jehangir Merwanji Street, Parel, Mumbai, 400 012, India.
| | - Seema Parte
- Stem Cell Biology Department, ICMR-National Institute for Research in Reproductive Health, Jehangir Merwanji Street, Parel, Mumbai, 400 012, India
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9
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Wang C, Sun Q, Li S, Liu G, Ren J, Li Y, Ding X, Zhu J, Dai Y. Isolation of female germline stem cells from neonatal piglet ovarian tissue and differentiation into oocyte-like cells. Theriogenology 2023; 197:186-197. [PMID: 36525858 DOI: 10.1016/j.theriogenology.2022.12.004] [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: 11/27/2021] [Revised: 11/27/2022] [Accepted: 12/02/2022] [Indexed: 12/13/2022]
Abstract
It has been generally accepted that the number of oocyte pool in mammalian ovaries is limited and irreversibly consumed throughout the adulthood until menopause, which has been challenged by the existence of female germline stem cells (FGSCs) and their differentiation potentials into oocytes through mitosis. However, there have been a few reports about the existence of porcine FGSCs (pFGSCs) in the neonatal piglet ovarian tissues. In this study, the pFGSCs were isolated from the one day post partum (1 dpp) piglet ovaries by a differential anchoring velocity method combined with the magnetic cell sorting (MACS) using VASA antibody. The gene expression levels and in vitro differentiation potentials of pFGSCs were subsequently analyzed. The results showed that Oct4, C-kit, Vasa, Stella, Ifitm3 and Dazl were expressed in the pFGSCs. A small portion of pFGSCs (2.81 ± 0.76%) spontaneously differentiated into oocyte-like cells (OLCs) with a mean diameter of 50 μm and gene expressions of Vasa, Ifitm3, Blimp1, Gdf9, Zp3, Dazl and Stella. Compared with that of the spontaneous differentiation system, the differentiation rates of pFGSCs into OLCs were significantly increased after the co-supplementations of porcine follicular fluid (PFF) and retinoic acid (RA). Taken together, these above results revealed the direct evidences for the existence of pFGSCs in 1 dpp piglet ovaries and the in vitro differentiation potential of pFGSCs into OLCs, benefiting future research related to the in vitro establishment of livestock FGSCs and the in vitro differentiation of pFGSCs.
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Affiliation(s)
- Chunyu Wang
- College of Life Science, Inner Mongolia University, No. 235 West Univ. Road, Hohhot, Zip Code: 010021, Inner Mongolia, China
| | - Qi Sun
- College of Life Science, Inner Mongolia University, No. 235 West Univ. Road, Hohhot, Zip Code: 010021, Inner Mongolia, China
| | - Shubin Li
- Department of Geriatric Medical Center, Inner Mongolia People's Hospital, No. 20 Zhaowuda Road, Hohhot, Zip Code: 010021, Inner Mongolia, China
| | - Gang Liu
- Key Laboratory of Medical Cell Biology, Clinical Medicine Research Center, Affiliated Hospital of Inner Mongolia Medical University, No. 1 Tongdao North Street, Hohhot, Zip Code: 010050, Inner Mongolia, China
| | - Jingyu Ren
- College of Life Science, Inner Mongolia University, No. 235 West Univ. Road, Hohhot, Zip Code: 010021, Inner Mongolia, China
| | - Yuan Li
- College of Life Science, Inner Mongolia University, No. 235 West Univ. Road, Hohhot, Zip Code: 010021, Inner Mongolia, China
| | - Xiangxiang Ding
- College of Life Science, Inner Mongolia University, No. 235 West Univ. Road, Hohhot, Zip Code: 010021, Inner Mongolia, China
| | - Jie Zhu
- College of Life Science, Inner Mongolia University, No. 235 West Univ. Road, Hohhot, Zip Code: 010021, Inner Mongolia, China
| | - Yanfeng Dai
- College of Life Science, Inner Mongolia University, No. 235 West Univ. Road, Hohhot, Zip Code: 010021, Inner Mongolia, China.
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Wang J, Fang J, Feng M, Li L, Ma L, Zhao X, Dai Y. Inhibition of EED activity enhances cell survival of female germline stem cell and improves the oocytes production during oogenesis in vitro. Open Biol 2023; 13:220211. [PMID: 36695089 PMCID: PMC9874982 DOI: 10.1098/rsob.220211] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Ovarian organoids, based on female germline stem cells (FGSCs), are nowadays widely applied for reproductive medicine screening and exploring the potential mechanisms during mammalian oogenesis. However, there are still key issues that urgently need to be resolved in ovarian organoid technology, one of which is to establish a culture system that effectively expands FGSCs in vitro, as well as maintaining the unipotentcy of FGSCs to differentiate into oocytes. Here, FGSCs were EED226 treated and processed for examination of proliferation and differentiation in vitro. According to the results, EED226 specifically increased FGSC survival by decreasing the enrichment of H3K27me3 on Oct4 promoter and exon, as well as enhancing OCT4 expression and inhibiting P53 and P63 expression. Notably, we also found that FGSCs with EED226 treatment differentiated into more oocytes during oogenesis in vitro, and the resultant oocytes maintained a low level of P63 versus control at early stage development. These results demonstrated that inhibition of EED activity appeared to promote the survival of FGSCs and markedly inhibited their apoptosis during in vitro differentiation. As a result of our study, we propose an effective culture strategy to culture FGSCs and obtain oocytes in vitro, which provides a new vision for oogenesis in vitro.
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Affiliation(s)
- Jiapeng Wang
- College of Life Sciences, Inner Mongolia University, Xilingol South Road No. 49, Hohhot 010020, People's Republic of China
| | - Junxian Fang
- College of Life Sciences, Inner Mongolia University, Xilingol South Road No. 49, Hohhot 010020, People's Republic of China
| | - Mingqian Feng
- College of Life Sciences, Inner Mongolia University, Xilingol South Road No. 49, Hohhot 010020, People's Republic of China
| | - Liping Li
- College of Life Sciences, Inner Mongolia University, Xilingol South Road No. 49, Hohhot 010020, People's Republic of China
| | - Lixin Ma
- College of Life Sciences, Inner Mongolia University, Xilingol South Road No. 49, Hohhot 010020, People's Republic of China
| | - Xiaorong Zhao
- College of Life Sciences, Inner Mongolia University, Xilingol South Road No. 49, Hohhot 010020, People's Republic of China
| | - Yanfeng Dai
- College of Life Sciences, Inner Mongolia University, Xilingol South Road No. 49, Hohhot 010020, People's Republic of China
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Chhabria S, Takle V, Sharma N, Kharkar P, Pansare K, Tripathi A, Tripathi A, Bhartiya D. Extremely Active Nano-formulation of Resveratrol (XAR™) attenuates and reverses chemotherapy-induced damage in mice ovaries and testes. J Ovarian Res 2022; 15:115. [PMID: 36271409 PMCID: PMC9585716 DOI: 10.1186/s13048-022-01043-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 09/23/2022] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Fertility preservation and restoration in cancer patients/survivors is the need of present times when increased numbers of patients get cured of cancer but face infertility as a serious side effect. Resveratrol has beneficial effects on chemoablated ovaries and testes in mice but has failed to enter the clinics because of extremely poor bioavailability. The present study was undertaken to evaluate the protective and curative effects of Extremely active Resveratrol (XAR™)- a nano-formulation of resveratrol with significantly improved bioavailability- on mouse ovary and testis after chemotherapy. Effects of XAR™ and FSH were compared on stimulation of follicle growth in adult mice ovaries. XAR™ (25 mg/kg) was administered for two days prior to chemotherapy to study the protective effects on the mouse gonads. XAR™ was also administered for 14 days post chemoablation to study the regenerative effects. Besides effect on numbers of primordial and growing follicles and spermatogenesis, the effect of XAR™ was also evaluated on the transcripts specific for ovarian/testicular stem/progenitor/germ cells, their proliferation, differentiation, meiosis, and the antioxidant indices. RESULTS Similar to FSH, XAR™ increased the numbers of primordial follicles (PF) as well as growing follicles. It protected the gonads from the adverse effects of chemotherapy and showed the ability to regenerate non-functional, chemoablated gonads. Besides stimulating follicle growth in adult ovaries similar to FSH, XAR™ also protected the testes from the adverse effects of chemotherapy and improved spermatogenesis. This was accompanied by improved anti-oxidant indices. CONCLUSIONS The results of the present study potentiate the use of XAR™ in pilot clinical studies to protect gonadal function during oncotherapy and also regenerate non-functional gonads in cancer survivors by improving antioxidant indices and stem cell-based tissue regeneration.
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Affiliation(s)
- Sagar Chhabria
- Epigeneres Biotech Pvt. Ltd., Sun Mill Compound, Ikon House, B-Block, Senapati Bapat Marg, Lower Parel, Mumbai, Maharashtra, 400013, India
| | - Vaishnavi Takle
- Epigeneres Biotech Pvt. Ltd., Sun Mill Compound, Ikon House, B-Block, Senapati Bapat Marg, Lower Parel, Mumbai, Maharashtra, 400013, India
| | - Nripen Sharma
- Epigeneres Biotech Pvt. Ltd., Sun Mill Compound, Ikon House, B-Block, Senapati Bapat Marg, Lower Parel, Mumbai, Maharashtra, 400013, India
| | - Prashant Kharkar
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Matunga, Mumbai, 400 019, India
- Shobhaben Pratapbhai Patel School of Pharmacy & Technology Management, SVKM's NMIMS, Vile Parle (West), Mumbai, 400 056, India
| | - Kshama Pansare
- Epigeneres Biotech Pvt. Ltd., Sun Mill Compound, Ikon House, B-Block, Senapati Bapat Marg, Lower Parel, Mumbai, Maharashtra, 400013, India
| | - Anish Tripathi
- Epigeneres Biotech Pvt. Ltd., Sun Mill Compound, Ikon House, B-Block, Senapati Bapat Marg, Lower Parel, Mumbai, Maharashtra, 400013, India
| | - Ashish Tripathi
- Epigeneres Biotech Pvt. Ltd., Sun Mill Compound, Ikon House, B-Block, Senapati Bapat Marg, Lower Parel, Mumbai, Maharashtra, 400013, India
| | - Deepa Bhartiya
- Epigeneres Biotech Pvt. Ltd., Sun Mill Compound, Ikon House, B-Block, Senapati Bapat Marg, Lower Parel, Mumbai, Maharashtra, 400013, India.
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12
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Sharma D, Bhartiya D. Dysfunctional Ovarian Stem Cells Due to Neonatal Endocrine Disruption Result in PCOS and Ovarian Insufficiency in Adult Mice. Stem Cell Rev Rep 2022; 18:2912-2927. [PMID: 35834052 DOI: 10.1007/s12015-022-10414-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/13/2022] [Indexed: 12/13/2022]
Abstract
Polycystic ovarian syndrome (PCOS) is a common global cause of anovulatory infertility but underlying etiology leading to PCOS still remains elusive. Fetal and perinatal endocrine disruption reportedly affects germ cell nests (GCN) breakdown, meiosis, and primordial follicle (PF) assembly with unassembled oocytes in neonatal ovaries. We recently reported that very small embryonic-like stem cells (VSELs) and ovarian stem cells (OSCs) express ERα, ERβ and FSHR, undergo distinct cyclic changes and neo-oogenesis encompassing GCN formation, meiosis, and primordial follicle (PF) assembly on regular basis in adult mice ovaries and these GCN are arrested in pre-meiotic or early meiotic stage in aged ovaries. Present study was undertaken to evaluate whether neonatal exposure to endocrine disruption (estradiol E2 or diethylstilbestrol DES) affects ovarian stem cells and their differentiation (neo-oogenesis) and PF assembly in adult 100 days old ovaries. Neonatal exposure to E2 resulted in typical features of PCOS including hyperandrogenism, infertility, increased stromal compartment, absent corpus lutea, and cystic follicles whereas DES treated ovaries showed rapid recruitment of follicles in young ovaries and multi-ovular/cystic follicles. Ovary surface epithelial cells smears showed large numbers of growth-arrested GCN in zygotene/pachytene with increased expression of Mlh-1 and Scp-1 suggesting defects at synapsis and recombination stages during prophase-1 of meiosis. Being immortal and expression of ERα and ERβ makes VSELs directly vulnerable to carry developmental endocrine insults to adult life. Dysfunction of VSELs/OSCs possibly results in oocyte defects observed in our study in PCOS/POI besides the widely reported defects in granulosa cells.
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Affiliation(s)
- Diksha Sharma
- Stem Cell Biology Department, ICMR- National Institute for Research in Reproductive and Child Health, Jehangir Merwanji Street, Parel, 400 012, Mumbai, India
| | - Deepa Bhartiya
- Stem Cell Biology Department, ICMR- National Institute for Research in Reproductive and Child Health, Jehangir Merwanji Street, Parel, 400 012, Mumbai, India.
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13
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Hong W, Wang B, Zhu Y, Wu J, Qiu L, Ling S, Zhou Z, Dai Y, Zhong Z, Zheng Y. Female germline stem cells: aging and anti-aging. J Ovarian Res 2022; 15:79. [PMID: 35787298 PMCID: PMC9251950 DOI: 10.1186/s13048-022-01011-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Accepted: 06/17/2022] [Indexed: 01/17/2023] Open
Abstract
The delay of ovarian aging and the fertility preservation of cancer patients are the eternal themes in the field of reproductive medicine. Acting as the pacemaker of female physiological aging, ovary is also considered as the principle player of cancer, cardiovascular diseases, cerebrovascular diseases, neurodegenerative diseases and etc. However, its aging mechanism and preventive measures are still unclear. Some researchers attempt to activate endogenous ovarian female germline stem cells (FGSCs) to restore ovarian function, as the most promising approach. FGSCs are stem cells in the adult ovaries that can be infinitely self-renewing and have the potential of committed differention. This review aims to elucidate FGSCs aging mechanism from multiple perspectives such as niches, immune disorder, chronic inflammation and oxidative stress. Therefore, the rebuilding nichs of FGSCs, regulation of immune dysfunction, anti-inflammation and oxidative stress remission are expected to restore or replenish FGSCs, ultimately to delay ovarian aging.
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Affiliation(s)
- Wenli Hong
- Reproductive Health Department, Shenzhen Traditional Chinese Medicine Hospital, the Fourth Clinical Medical College of Guangzhou University of Traditional Chinese Medicine, Shenzhen, Guangdong, 518000, People's Republic of China.,Shenzhen University Health Science Center, Shenzhen, Guangdong, 518000, People's Republic of China
| | - Baofeng Wang
- ARTcenter, Shenzhen Hengsheng Hospital, Shenzhen, Guangdong, 518000, People's Republic of China
| | - Yasha Zhu
- Reproductive Health Department, Shenzhen Traditional Chinese Medicine Hospital, the Fourth Clinical Medical College of Guangzhou University of Traditional Chinese Medicine, Shenzhen, Guangdong, 518000, People's Republic of China
| | - Jun'e Wu
- Reproductive Health Department, Shenzhen Traditional Chinese Medicine Hospital, the Fourth Clinical Medical College of Guangzhou University of Traditional Chinese Medicine, Shenzhen, Guangdong, 518000, People's Republic of China
| | - Li Qiu
- Reproductive Health Department, Shenzhen Traditional Chinese Medicine Hospital, the Fourth Clinical Medical College of Guangzhou University of Traditional Chinese Medicine, Shenzhen, Guangdong, 518000, People's Republic of China
| | - Shuyi Ling
- Reproductive Health Department, Shenzhen Traditional Chinese Medicine Hospital, the Fourth Clinical Medical College of Guangzhou University of Traditional Chinese Medicine, Shenzhen, Guangdong, 518000, People's Republic of China
| | - Ziqiong Zhou
- Reproductive Health Department, Shenzhen Traditional Chinese Medicine Hospital, the Fourth Clinical Medical College of Guangzhou University of Traditional Chinese Medicine, Shenzhen, Guangdong, 518000, People's Republic of China
| | - Yuqing Dai
- Reproductive Health Department, Shenzhen Traditional Chinese Medicine Hospital, the Fourth Clinical Medical College of Guangzhou University of Traditional Chinese Medicine, Shenzhen, Guangdong, 518000, People's Republic of China
| | - Zhisheng Zhong
- Reproductive Health Department, Shenzhen Traditional Chinese Medicine Hospital, the Fourth Clinical Medical College of Guangzhou University of Traditional Chinese Medicine, Shenzhen, Guangdong, 518000, People's Republic of China.
| | - Yuehui Zheng
- Reproductive Health Department, Shenzhen Traditional Chinese Medicine Hospital, the Fourth Clinical Medical College of Guangzhou University of Traditional Chinese Medicine, Shenzhen, Guangdong, 518000, People's Republic of China.
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14
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Bhartiya D, Mohammad SA, Singh P, Sharma D, Kaushik A. GFP Tagged VSELs Help Delineate Novel Stem Cells Biology in Multiple Adult Tissues. Stem Cell Rev Rep 2022; 18:1603-1613. [PMID: 35641711 DOI: 10.1007/s12015-022-10401-4] [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] [Accepted: 05/19/2022] [Indexed: 11/25/2022]
Abstract
Various types of stem cells are being researched upon to exploit their potential for regenerative medicine including pluripotent human embryonic stem (hES) cells derived from spare human embryos, induced pluripotent stem (iPS) cells by reprogramming somatic cells to a pluripotent state and multipotent mesenchymal stem/stromal cells (MSCs) obtained in vitro from multiple tissues. More than 50 independent groups have reported another novel population of pluripotent stem cells in adult tissues termed very small embryonic-like stem cells (VSELs). VSELs are developmentally linked to primordial germ cells, which rather than giving rise to the germ cells and later ceasing to exist, survive throughout life in multiple organs along with tissue-specific adult stem cells better described as lineage-restricted, tissue-committed progenitors with limited plasticity. VSELs survive total body irradiation in bone marrow, oncotherapy in the gonads, bilateral ovariectomy in the uterus and partial pancreatectomy in the pancreas of mice and participate in the regeneration of multiple organs under normal physiological conditions. VSELs and tissue-specific progenitor cells work together in a subtle manner, maintain life-long tissue homeostasis and their dysfunction leads to various pathologies including cancer. However, due to their quiescent state, VSELs have invariably eluded lineage-tracing studies reported so far. Present article reviews novel insights into VSELs biology and how VSELs enriched from GFP (green fluorescent protein) mice have enabled to delineate their role in various biological processes in vivo. VSELs biology needs to be understood in-depth as this alone will help evolve the field of regenerative medicine and win the war against cancer.
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Affiliation(s)
- Deepa Bhartiya
- Stem Cell Biology Department, ICMR-National Institute for Research in Reproductive and Child Health, Jehangir Merwanji Street, Parel, Mumbai, 400012, India.
- Epigeneres Biotech Pvt Ltd, Lower Parel, Mumbai, 400013, India.
| | - Subhan Ali Mohammad
- Stem Cell Biology Department, ICMR-National Institute for Research in Reproductive and Child Health, Jehangir Merwanji Street, Parel, Mumbai, 400012, India
| | - Pushpa Singh
- Stem Cell Biology Department, ICMR-National Institute for Research in Reproductive and Child Health, Jehangir Merwanji Street, Parel, Mumbai, 400012, India
| | - Diksha Sharma
- Stem Cell Biology Department, ICMR-National Institute for Research in Reproductive and Child Health, Jehangir Merwanji Street, Parel, Mumbai, 400012, India
| | - Ankita Kaushik
- Stem Cell Biology Department, ICMR-National Institute for Research in Reproductive and Child Health, Jehangir Merwanji Street, Parel, Mumbai, 400012, India
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15
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Singh P, Metkari S, Bhartiya D. Additional evidence to support OCT-4 positive VSELs and EnSCs as the elusive tissue-resident stem/progenitor cells in adult mice uterus. Stem Cell Res Ther 2022; 13:60. [PMID: 35123545 PMCID: PMC8818151 DOI: 10.1186/s13287-022-02703-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 01/04/2022] [Indexed: 01/27/2023] Open
Abstract
OBJECTIVE True identity and specific set of markers to enrich endometrial stem cells still remains elusive. Present study was undertaken to further substantiate that very small embryonic-like stem cells (VSELs) are the true and elusive stem cells in adult mice endometrium. METHODS This was achieved by undertaking three sets of experiments. Firstly, SSEA-1+ and Oct-4 + positive VSELs, sorted from GFP mice, were transplanted into the uterine horns of wild-type Swiss mice and GFP uptake was studied within the same estrus cycle. Secondly, uterine lumen was scratched surgically and OCT-4 expressing stem/progenitor cells were studied at the site of injury after 24-72 h. Thirdly, OCT-4 expression was studied in the endometrium and myometrium of adult mice after neonatal exposure to estradiol (20 µg/pup/day on days 5-7 after birth). RESULTS GFP + ve VSELs expressing SSEA-1 and Oct-4 engrafted and differentiated into the epithelial cells lining the lumen as well as the glands during the estrus stage when maximum remodeling occurs. Mechanical scratching activated tissue-resident, nuclear OCT-4 positive VSELs and slightly bigger 'progenitors' endometrial stem cells (EnSCs, cytoplasmic OCT-4) which underwent clonal expansion and further differentiated into luminal and glandular epithelial cells. Neonatal exposure to endocrine disruption resulted in increased numbers of OCT-4 positive VSELs/EnSCs in adult endometrium. DISCUSSION Results support the presence of functionally active VSELs in adult endometrium. VSELs self-renew and give rise to EnSCs that further differentiate into epithelial cells under normal physiological conditions. Also, VSELs are vulnerable to endocrine insults. To conclude VSELs are true and elusive uterine stem cells that maintain life-long uterine homeostasis and their dysregulation may result in various pathologies.
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Affiliation(s)
- Pushpa Singh
- Stem Cell Biology Department, ICMR-National Institute for Research in Reproductive Health, Jehangir Merwanji Street, Parel, Mumbai, 400 012, India
| | - Siddhanath Metkari
- Stem Cell Biology Department, ICMR-National Institute for Research in Reproductive Health, Jehangir Merwanji Street, Parel, Mumbai, 400 012, India
| | - Deepa Bhartiya
- Stem Cell Biology Department, ICMR-National Institute for Research in Reproductive Health, Jehangir Merwanji Street, Parel, Mumbai, 400 012, India.
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16
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Zhou Z, Yin H, Suye S, Zhu F, Cai H, Fu C. The changes of DNA double-strand breaks and DNA repair during ovarian reserve formation in mice. Reprod Biol 2022; 22:100603. [PMID: 35026551 DOI: 10.1016/j.repbio.2022.100603] [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: 07/26/2021] [Revised: 12/16/2021] [Accepted: 01/02/2022] [Indexed: 11/19/2022]
Abstract
DNA double-strand break (DSB) repair is crucial to maintain genomic stability for sufficient ovarian reserve. It remains unknown the changes of DSBs formation and DNA repair in germ cells during ovarian reserve formation in FVB/N mice. We demonstrated germ cell numbers increased significantly (all P < 0.05) from E11.5 to E13.5 and decreased significantly (all P> 0.05) until P2. OCT4 and SOX2 analyses indicated pluripotency peaks at E13.5 then decreases significantly (all P 0.05) until P2. γH2AX analyses revealed DSB formation significantly (P < 0.05) increased from E13.5 until P2. RAD51 and DMC1 data revealed homologous recombination (HR) pathway repair of DSBs is persistent active during meiosis (E13.5- P2) (all P> 0.05). 53BP1 and KU70 data indicate the non-homologous end-joining pathway (NHEJ) remains active during meiosis. 53BP1 expression was highest at E13.5 (P < 0.05). KU70 expression was higher in germ cells from E15.5 to P2 (all < P 0.05). PH3 and KI67 analyses revealed germ cell proliferation was not significantly different (all P> 0.05) from E13.5 to P2. Caspase-3 and TUNEL analyses showed germ cells apoptosis was not significantly different (all P > 0.05) from E13.5 to P2. In conclusion, we found both germ cell number and pluripotency peak at E13.5 and decline during meiosis. We demonstrated HR and NHEJ continually repair DSBs during meiosis. RAD51 and DMC1 are continuously expressed during meiosis. 53BP1 is mainly expressed at E13.5. KU70 continually functions from E15.5 to P2. Proliferating and apoptotic cells were rarely detected during meiosis. Results provide a basis for further study of how DSBs and DNA repair affect germ cell development.
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Affiliation(s)
- Zhixian Zhou
- Department of Obstetrics and Gynecology, Second Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Huan Yin
- Department of Obstetrics and Gynecology, Second Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Suye Suye
- Department of Obstetrics and Gynecology, Second Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Fang Zhu
- Department of Obstetrics and Gynecology, Second Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Haiyi Cai
- Department of Clinical Medicine, Harbin Medical University, Harbin, 150081, China
| | - Chun Fu
- Department of Obstetrics and Gynecology, Second Xiangya Hospital, Central South University, Changsha, 410011, China.
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17
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Bhartiya D, Patel H. An overview of FSH-FSHR biology and explaining the existing conundrums. J Ovarian Res 2021; 14:144. [PMID: 34717708 PMCID: PMC8557046 DOI: 10.1186/s13048-021-00880-3] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Accepted: 09/12/2021] [Indexed: 12/23/2022] Open
Abstract
FSH was first identified in 1930 and is central to mammalian reproduction. It is indeed intriguing that despite being researched upon for about 90 years, there is still so much more to learn about FSH-FSHR biology. The purpose of this review is to provide an overview of current understanding of FSH-FSHR biology, to review published data on biological and clinical relevance of reported mutations, polymorphisms and alternately spliced isoforms of FSHR. Tissue-resident stem/progenitor cells in multiple adult tissues including ovaries, testes and uterus express FSHR and this observation results in a paradigm shift in the field. The results suggest a direct action of FSH on the stem cells in addition to their well-studied action on Granulosa and Sertoli cells in the ovaries and testes respectively. Present review further addresses various concerns raised in recent times by the scientific community regarding extragonadal expression of FSHR, especially in cancers affecting multiple organs. Similar population of primitive and pluripotent tissue-resident stem cells expressing FSHR exist in multiple adult tissues including bone marrow and reproductive tissues and help maintain homeostasis throughout life. Any dysfunction of these stem cells results in various pathologies and they also most likely get transformed into cancer stem cells and initiate cancer. This explains why multiple solid as well as liquid tumors express OCT-4 and FSHR. More research efforts need to be focused on alternately spliced FSHR isoforms.
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Affiliation(s)
- Deepa Bhartiya
- Stem Cell Biology Department, ICMR- National Institute for Research in Reproductive Health, Jehangir Merwanji Street, Maharashtra, 400012, Mumbai, India. .,Department of Ophthalmology and Visual Sciences, University of Nebraska Medical Center, Omaha, Nebraska, USA.
| | - Hiren Patel
- Stem Cell Biology Department, ICMR- National Institute for Research in Reproductive Health, Jehangir Merwanji Street, Maharashtra, 400012, Mumbai, India.,Department of Ophthalmology and Visual Sciences, University of Nebraska Medical Center, Omaha, Nebraska, USA
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18
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Bhartiya D, Patel H, Kaushik A, Singh P, Sharma D. Endogenous, tissue-resident stem/progenitor cells in gonads and bone marrow express FSHR and respond to FSH via FSHR-3. J Ovarian Res 2021; 14:145. [PMID: 34717703 PMCID: PMC8556987 DOI: 10.1186/s13048-021-00883-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Accepted: 09/16/2021] [Indexed: 12/12/2022] Open
Abstract
Follicle stimulating hormone (FSH) is secreted by the anterior pituitary and acts on the germ cells indirectly through Granulosa cells in ovaries and Sertoli cells in the testes. Extragonadal action of FSH has been reported but is still debated. Adult tissues harbor two populations of stem cells including a reserve population of primitive, small-sized, pluripotent very small embryonic-like stem cells (VSELs) and slightly bigger, tissue-specific progenitors which include ovarian stem cells (OSCs) in ovaries, spermatogonial stem cells (SSCs) in testes, endometrial stem cells (EnSCs) in uterus and hematopoietic stem cells (HSCs) in the bone marrow. Data has accumulated in animal models showing FSHR expression on both VSELs and progenitors in ovaries, testes, uterus and bone marrow and eventually gets lost as the cells differentiate further. FSH exerts a direct action on the stem/progenitor cells via alternatively spliced FSHR-3 rather than the canonical FSHR-1. FSH stimulates VSELs to undergo asymmetrical cell divisions to self-renew and give rise to the progenitors that in turn undergo symmetrical cell divisions and clonal expansions followed by differentiation into specific cell types. Excessive self-renewal of VSELs results in cancer and this explains ubiquitous expression of embryonic markers including nuclear OCT-4 along with FSHR in cancerous tissues. Focus of this review is to compile published data to support this concept. FSHR expression in stem/progenitor cells was confirmed by immuno-fluorescence, Western blotting, in situ hybridization and by quantitative RT-PCR. Two different commercially available antibodies (Abcam, Santacruz) were used to confirm specificity of FSHR expression along with omission of primary antibody and pre-incubation of antibody with immunizing peptide as negative controls. Western blotting allowed detection of alternatively spliced FSHR isoforms. Oligoprobes and primers specific for Fshr-1 and Fshr-3 were used to study these alternately-sliced isoforms by in situ hybridization and their differential expression upon FSH treatment by qRT-PCR. To conclude, stem/progenitor cells in adult tissues express FSHR and directly respond to FSH via FSHR-3. These findings change the field of FSH-FSHR biology, call for paradigm shift, explain FSHR expression on cancer cells in multiple organs and provide straightforward explanations for various existing conundrums including extragonadal expression of FSHR.
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Affiliation(s)
- Deepa Bhartiya
- Stem Cell Biology Department, ICMR- National Institute for Research in Reproductive Health, Jehangir Merwanji Street, Parel, Mumbai, 400 012, India.
| | - Hiren Patel
- Stem Cell Biology Department, ICMR- National Institute for Research in Reproductive Health, Jehangir Merwanji Street, Parel, Mumbai, 400 012, India
- Present address: Department of Ophthalmology and Visual Sciences, University of Nebraska Medical Center, Omaha, NE, USA
| | - Ankita Kaushik
- Stem Cell Biology Department, ICMR- National Institute for Research in Reproductive Health, Jehangir Merwanji Street, Parel, Mumbai, 400 012, India
| | - Pushpa Singh
- Stem Cell Biology Department, ICMR- National Institute for Research in Reproductive Health, Jehangir Merwanji Street, Parel, Mumbai, 400 012, India
| | - Diksha Sharma
- Stem Cell Biology Department, ICMR- National Institute for Research in Reproductive Health, Jehangir Merwanji Street, Parel, Mumbai, 400 012, India
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19
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Ebrahim N, Al Saihati HA, Shaman A, Dessouky AA, Farid AS, Hussien NI, Mostafa O, Seleem Y, Sabry D, Saad AS, Emam HT, Hassouna A, Badr OAM, Saffaf BA, Forsyth NR, Salim RF. Bone marrow-derived mesenchymal stem cells combined with gonadotropin therapy restore postnatal oogenesis of chemo-ablated ovaries in rats via enhancing very small embryonic-like stem cells. Stem Cell Res Ther 2021; 12:517. [PMID: 34579781 PMCID: PMC8477571 DOI: 10.1186/s13287-021-02415-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 05/25/2021] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND Very small embryonic-like stem cells (VSELs) are a rare population within the ovarian epithelial surface. They contribute to postnatal oogenesis as they have the ability to generate immature oocytes and resist the chemotherapy. These cells express markers of pluripotent embryonic and primordial germ cells. OBJECTIVE We aimed to explore the capability of VSELs in restoring the postnatal oogenesis of chemo-ablated rat ovaries treated with bone marrow-derived mesenchymal stem cells (BM-MSCs) combined with pregnant mare serum gonadotropin (PMSG). METHODS Female albino rats were randomly assigned across five groups: I (control), II (chemo-ablation), III (chemo-ablation + PMSG), IV (chemo-ablation + MSCs), and V (chemo-ablation + PMSG + MSCs). Postnatal oogenesis was assessed through measurement of OCT4, OCT4A, Scp3, Mvh, Nobox, Dazl4, Nanog, Sca-1, FSHr, STRA8, Bax, miR143, and miR376a transcript levels using qRT-PCR. Expression of selected key proteins were established as further confirmation of transcript expression changes. Histopathological examination and ovarian hormonal assessment were determined. RESULTS Group V displayed significant upregulation of all measured genes when compared with group II, III or IV. Protein expression confirmed the changes in transcript levels as group V displayed the highest average density in all targeted proteins. These results were confirmed histologically by the presence of cuboidal germinal epithelium, numerous primordial, unilaminar, and mature Graafian follicles in group V. CONCLUSION VSELs can restore the postnatal oogenesis in chemo-ablated ovaries treated by BM-MSCs combined with PMSG.
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Affiliation(s)
- Nesrine Ebrahim
- Department of Histology and Cell Biology, Faculty of Medicine, Benha University, Benha, Egypt
- Stem Cell Unit, Faculty of Medicine, Benha University, Benha, Egypt
| | - Hajir A Al Saihati
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, University of Hafr Albatin, Al-Batin, Saudi Arabia
| | - Amani Shaman
- Obstetrics and Gynecology Medical College, Tabuk University, Tabuk, Saudi Arabia
| | - Arigue A Dessouky
- Department of Medical Histology and Cell Biology, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Ayman Samir Farid
- Department of Clinical Pathology, Faculty of Veterinary Medicine, Benha University, Benha, Egypt
| | - Noha I Hussien
- Department of Medical Physiology, Faculty of Medicine, Benha University, Benha, Egypt
| | - Ola Mostafa
- Department of Histology and Cell Biology, Faculty of Medicine, Benha University, Benha, Egypt
| | - Yasmin Seleem
- Department of Clinical Pharmacology, Faculty of Medicine, Benha University, Benha, Egypt
| | - Dina Sabry
- Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Badr University, Cairo, Egypt
| | - Ahmed S Saad
- Department of Obstetrics & Gynecology, Faculty of Medicine, Benha University, Benha, Egypt
| | - Hanan Tawfeek Emam
- Department of Clinical Pharmacology, Faculty of Medicine, Benha University, Benha, Egypt
| | - Amira Hassouna
- School of Interprofessional Health Studies, Faculty of Health and Environmental Sciences, AUT University, Auckland, New Zealand
| | - Omnia A M Badr
- Department of Genetics and Genetic Engineering, Faculty of Agriculture, Benha University, Benha, Egypt
| | - Bayan A Saffaf
- Department of pharmacology, Faculty of Pharmacy, Future University, Cairo, Egypt
| | - Nicholas R Forsyth
- Guy Hilton Research Laboratories, School of Pharmacy and Bioengineering, Faculty of Medicine and Health Sciences, Keele University, Keele, UK
| | - Rabab F Salim
- Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Benha University, Benha, Qalyubia, 13512, Egypt.
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Stem Cells in Adult Mice Ovaries Form Germ Cell Nests, Undergo Meiosis, Neo-oogenesis and Follicle Assembly on Regular Basis During Estrus Cycle. Stem Cell Rev Rep 2021; 17:1695-1711. [PMID: 34455541 DOI: 10.1007/s12015-021-10237-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/05/2021] [Indexed: 12/21/2022]
Abstract
Very small embryonic-like (VSELs) and ovarian (OSCs) stem cells are located in adult mammalian ovary surface epithelium (OSE). OSCs can expand long-term and differentiate into oocyte-like structures in vitro and have resulted in birth of fertile pups. Lineage tracing studies have provided evidence to suggest OSCs differentiation into oocytes in vivo. But how these stem cells function under normal physiological conditions has not yet been well worked out. Besides studying STRA-8 and SCP-3 expression in enzymatically isolated OSE cells smears, mice were injected BrdU to track mitosis, meiosis and follicle assembly. H&E stained OSE cells during late diestrus and proestrus showed VSELs undergoing asymmetrical cell divisions to give rise to slightly bigger OSCs which in turn underwent symmetrical cell divisions followed by clonal expansion (rapid expansion with incomplete cytokinesis) during early estrus to form germ cell nests (GCN). OCT-4, SSEA-1, MVH and DAZL positive cells in GCN expressed Erα, Erβ and FSHR, were interconnected by ring canals (TEX-14), showed mitochondrial aggregation (Cytochrome C) and Balbiani Body (TRAL). Apoptosis in 'nurse' cells was marked by PARP and putative oocytes were clearly visualized. BrdU was detected in cells undergoing mitosis/meiosis and also in an oocyte of secondary follicle. FACS sorted, green fluorescent protein (GFP) positive VSELs upon transplantation resulted in GFP positive GCN suggesting crucial role for VSELs in adult ovaries. Results suggest that various events described during oogenesis and follicle assembly in fetal ovaries are recapitulated on regular basis in adult ovary and result in the formation of follicles.
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Kakar SS, Ratajczak MZ. Paper of October Issue of Stem Cell Reviews and Reports Presents a Novel View on Oogenesis in Adult Mammalian Ovaries. Stem Cell Rev Rep 2021; 17:1519-1520. [PMID: 34448117 DOI: 10.1007/s12015-021-10248-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- Sham S Kakar
- Department of Physiology, University of Louisville, Louisville, KY, 40202, USA
| | - Mariusz Z Ratajczak
- Department of Medicine, University of Louisville, Louisville, KY, 40202, USA.
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Wartalski K, Gorczyca G, Wiater J, Tabarowski Z, Duda M. Porcine ovarian cortex-derived putative stem cells can differentiate into endothelial cells in vitro. Histochem Cell Biol 2021; 156:349-362. [PMID: 34269874 PMCID: PMC8550686 DOI: 10.1007/s00418-021-02016-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/05/2021] [Indexed: 12/19/2022]
Abstract
Endothelial cells (ECs), the primary component of the vasculature, play a crucial role in neovascularization. However, the number of endogenous ECs is inadequate for both experimental purposes and clinical applications. Porcine ovarian putative stem cells (poPSCs), although not pluripotent, are characterized by great plasticity. Therefore, this study aimed to investigate whether poPSCs have the potential to differentiate into cells of endothelial lineage. poPSCs were immunomagnetically isolated from postnatal pig ovaries based on the presence of SSEA-4 protein. Expression of mesenchymal stem cells (MSCs) markers after pre-culture, both at the level of mRNA: ITGB1, THY, and ENG and corresponding protein: CD29, CD90, and CD105 were significantly higher compared to the control ovarian cortex cells. To differentiate poPSCs into ECs, inducing medium containing vascular endothelial growth factor (VEGF), basic fibroblast growth factor (bFGF), insulin-like growth factor (IGF), epidermal growth factor (EGF), ascorbic acid, and heparin was applied. After 14 days, poPSC differentiation into ECs was confirmed by immunofluorescence staining for vascular endothelial cadherin (VECad) and vascular endothelial growth factor receptor-2 (VEGFR-2). Semi-quantitative WB analysis of these proteins confirmed their high abundance. Additionally, qRT-PCR showed that mRNA expression of corresponding marker genes: CDH5, KDR was significantly higher compared with undifferentiated poPSCs. Finally, EC functional status was confirmed by the migration test that revealed that they were capable of positive chemotaxis, while tube formation assay demonstrated their ability to develop capillary networks. In conclusion, our results provided evidence that poPSCs may constitute the MSC population in the ovary and confirmed that they might be a potential source of ECs for tissue engineering.
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Affiliation(s)
- Kamil Wartalski
- Faculty of Medicine, Department of Histology, Jagiellonian University Medical College, Kopernika 7 Street, 31-034, Krakow, Poland
| | - Gabriela Gorczyca
- Faculty of Biology, Institute of Zoology and Biomedical Research, Department of Endocrinology, Jagiellonian University in Krakow, Gronostajowa 9 Street, 30-387, Krakow, Poland
| | - Jerzy Wiater
- Faculty of Medicine, Department of Histology, Jagiellonian University Medical College, Kopernika 7 Street, 31-034, Krakow, Poland
| | - Zbigniew Tabarowski
- Faculty of Biology, Institute of Zoology and Biomedical Research, Department of Experimental Hematology, Jagiellonian University in Krakow, Gronostajowa 9 Street, 30-387, Krakow, Poland
| | - Małgorzata Duda
- Faculty of Biology, Institute of Zoology and Biomedical Research, Department of Endocrinology, Jagiellonian University in Krakow, Gronostajowa 9 Street, 30-387, Krakow, Poland.
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Bhartiya D, Flora Y, Sharma D, Mohammad SA. Two Stem Cell Populations Including VSELs and CSCs Detected in the Pericardium of Adult Mouse Heart. Stem Cell Rev Rep 2021; 17:685-693. [PMID: 33492626 DOI: 10.1007/s12015-021-10119-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/05/2021] [Indexed: 10/22/2022]
Abstract
Adult mammalian heart is considered to be one of the least regenerative organs as it is not able to initiate endogenous regeneration in response to injury unlike in lower vertebrates and neonatal mammals. Evidence is now accumulating to suggest normal renewal and replacement of cardiomyocytes occurs even in middle-aged and old individuals. But underlying mechanisms leading to this are not yet clear. Do tissue-resident stem cells exist or somatic cells dedifferentiate leading to regeneration? Lot of attention is currently being focused on epicardium as it is involved in cardiac development, lodges multipotent progenitors and is a source of growth factors. Present study was undertaken to study the presence of stem cells in the pericardium. Intact adult mouse heart was subjected to partial enzymatic digestion to collect the pericardial cells dislodged from the surface. Pericardial cells suspension was processed to enrich the stem cells using our recently published protocol. Two populations of stem cells were successfully enriched from the pericardium of adult mouse heart along with distinct 'cardiospheres' with cytoplasmic continuity (formed by rapid proliferation and incomplete cytokinesis). These included very small embryonic-like stem cells (VSELs) and slightly bigger 'progenitors' cardiac stem cells (CSCs). Expression of pluripotent (Oct-4A, Sox-2, Nanog), primordial germ cells (Stella, Fragilis) and CSCs (Oct-4, Sca-1) specific transcripts was studied by RT-PCR. Stem cells expressed OCT-4, NANOG, SSEA-1, SCA-1 and c-KIT. c-KIT was expressed by cells of different sizes but only smaller CD45-c-KIT+ VSELs possess regenerative potential. Inadvertent loss of stem cells while processing for different experiments has led to misperceptions & controversies existing in the field of cardiac stem cells and requires urgent rectification. VSELs/CSCs have the potential to regenerate damaged cardiac tissue in the presence of paracrine support provided by the mesenchymal stromal cells.
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Affiliation(s)
- Deepa Bhartiya
- Stem Cell Biology Department, ICMR-National Institute for Research in Reproductive Health, Jehangir Merwanji Street, Parel, Mumbai, 400 012, India.
| | - Yash Flora
- Stem Cell Biology Department, ICMR-National Institute for Research in Reproductive Health, Jehangir Merwanji Street, Parel, Mumbai, 400 012, India
| | - Diksha Sharma
- Stem Cell Biology Department, ICMR-National Institute for Research in Reproductive Health, Jehangir Merwanji Street, Parel, Mumbai, 400 012, India
| | - Subhan Ali Mohammad
- Stem Cell Biology Department, ICMR-National Institute for Research in Reproductive Health, Jehangir Merwanji Street, Parel, Mumbai, 400 012, India
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Cell Communications among Microorganisms, Plants, and Animals: Origin, Evolution, and Interplays. Int J Mol Sci 2020; 21:ijms21218052. [PMID: 33126770 PMCID: PMC7663094 DOI: 10.3390/ijms21218052] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 10/17/2020] [Accepted: 10/27/2020] [Indexed: 02/06/2023] Open
Abstract
Cellular communications play pivotal roles in multi-cellular species, but they do so also in uni-cellular species. Moreover, cells communicate with each other not only within the same individual, but also with cells in other individuals belonging to the same or other species. These communications occur between two unicellular species, two multicellular species, or between unicellular and multicellular species. The molecular mechanisms involved exhibit diversity and specificity, but they share common basic features, which allow common pathways of communication between different species, often phylogenetically very distant. These interactions are possible by the high degree of conservation of the basic molecular mechanisms of interaction of many ligand-receptor pairs in evolutionary remote species. These inter-species cellular communications played crucial roles during Evolution and must have been positively selected, particularly when collectively beneficial in hostile environments. It is likely that communications between cells did not arise after their emergence, but were part of the very nature of the first cells. Synchronization of populations of non-living protocells through chemical communications may have been a mandatory step towards their emergence as populations of living cells and explain the large commonality of cell communication mechanisms among microorganisms, plants, and animals.
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25
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Bhartiya D, Sharma D. Ovary does harbor stem cells - size of the cells matter! J Ovarian Res 2020; 13:39. [PMID: 32303227 PMCID: PMC7164193 DOI: 10.1186/s13048-020-00647-2] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 04/13/2020] [Indexed: 12/30/2022] Open
Abstract
A recent study published in the journal Nature Communications from Karolinska Institute, Sweden was unable to detect stem cells in adult human ovarian cortex by single-cell RNAseq and by studying cell surface antigen profiles by flow cytometry studies. Their findings are startling since stem cells have been well characterized in the adult mammalian ovary of several species including mouse, rabbit, monkey, sheep, pig and humans. Ovarian stem cells include pluripotent, very small embryonic-like stem cells (VSELs) and slightly bigger ovarian stem cells (OSCs) which are easily visualized in smears obtained by gently scraping the ovary surface. The potential of ovarian stem cells to differentiate into oocyte-like structures in vitro and also resulting in the birth of mouse pups has been reported. A possible role of ovarian VSELs in initiation of ovarian cancers has also been delineated. The ovarian stem cells can also be collected by enzymatic digestion of ovarian tissue for various studies, taking care to always pellet the cells suspension at 1000 g since this high speed is required to collect the small-sized stem cell populations (VSELs & OSCs) with high nucleo-cytoplasmic ratio. These stem cells invariably get discarded when cells suspension is spun at lower speed. The cells were spun at 300 g for various experiments in the Karolinska study and this is the underlying reason for their negative results. Stem cells were inadvertently and unknowingly discarded and never got analyzed by single-cell RNAseq and flow cytometry experiments. To conclude, stem cells surely exist in adult mammalian ovary and their role during neo-oogenesis and primordial follicle assembly under physiological conditions is currently being investigated.
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Affiliation(s)
- Deepa Bhartiya
- Stem Cell Biology Department, ICMR-National Institute for Research in Reproductive Health, Jehangir Merwanji Street, Parel, Mumbai, 400 012, India.
| | - Diksha Sharma
- Stem Cell Biology Department, ICMR-National Institute for Research in Reproductive Health, Jehangir Merwanji Street, Parel, Mumbai, 400 012, India
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Blumenfeld Z. Fertility Preservation in Women With Malignancy: Future Endeavors. CLINICAL MEDICINE INSIGHTS. REPRODUCTIVE HEALTH 2019; 13:1179558119872490. [PMID: 31548799 PMCID: PMC6743198 DOI: 10.1177/1179558119872490] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Accepted: 08/07/2019] [Indexed: 12/13/2022]
Abstract
The area of fertility preservation is constantly developing. To date, the only
noninvestigational and unequivocally accepted methods for fertility preservation
are cryopreservation of embryos and unfertilized oocytes. This article is one of
several in a monogram on fertility preservation. The debate, pros and cons, and
equivocal data on the use of GnRH analogues for fertility preservation are
elaborated by 3 other manuscripts, in this monogram. A repeat of the arguments,
pros and cons of this debatable issue, would be a repetition and redundancy of
what is already included in this monogram. The subject of ovarian
cryopreservation for fertility preservation is also elaborated by several other
authors in this monogram. It is possible that, in the not too far future, the
technologies of in vitro maturation of primordial follicles to metaphase 2
oocytes, and the “artificial ovary,” will turn clinically available. These
technologies may bypass the risk of resuming malignancy by autotransplantation
of cryopreserved-thawed ovarian tissue in leukemia and diseases where malignant
cells may persist in the cryopreserved ovarian tissue. We summarize here the
suggested options for future endeavors in fertility preservation.
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Affiliation(s)
- Zeev Blumenfeld
- Reproductive Endocrinology, Ob/Gyn, Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
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Patel H, Bhartiya D. Direct action of FSH on testicular stem cells. Stem Cell Res Ther 2019; 10:261. [PMID: 31443684 PMCID: PMC6708140 DOI: 10.1186/s13287-019-1390-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 07/24/2019] [Accepted: 08/16/2019] [Indexed: 01/10/2023] Open
Abstract
Recently published article by Pieri’s group suggested that follicle-stimulating hormone (FSH) activates canine testicular spermatogonial stem cells (SSCs) and results in increased expression of pluripotent markers and formation of germ cell clumps possibly via indirect paracrine effect of Sertoli cells. We disagree with their interpretations and herewith provide a better explanation to their findings. We have earlier reported the presence of pluripotent, very small embryonic-like stem cells (VSELs) as a sub-group among the SSCs in human and mouse testes and that both VSELs and SSCs express FSH receptors. Thus, FSH exerts a direct stimulatory action on the testicular stem/progenitor cells whereby VSELs undergo asymmetrical cell divisions to self-renew (result in upregulation of pluripotent markers) and give rise to slightly bigger SSCs which undergo symmetrical cell divisions and “clonal expansion” (rapid proliferation with incomplete cytokinesis) which was noted by the authors as “clump” formation. This action of FSH is mediated via alternately spliced FSHR3 rather than the canonical FSHR1 receptor isoform, and FSH exerts similar action on ovarian and uterine stem/progenitor cells also. Being quiescent by nature, VSELs survive chemotherapy. Transplanted germ cells colonize chemoablated tubules but do not differentiate into sperm since the testicular stem cell niche comprising Sertoli cells gets functionally compromised by chemotherapy. Transplanting healthy niche cells (Sertoli or bone marrow-derived mesenchymal cells) can restore spermatogenesis in chemoablated testes.
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Affiliation(s)
- Hiren Patel
- Stem Cell Biology Department, ICMR-National Institute for Research in Reproductive Health, Jehangir Merwanji Street, Parel, Mumbai, 400012, India
| | - Deepa Bhartiya
- Stem Cell Biology Department, ICMR-National Institute for Research in Reproductive Health, Jehangir Merwanji Street, Parel, Mumbai, 400012, India.
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Similar Population of CD133+ and DDX4+ VSEL-Like Stem Cells Sorted from Human Embryonic Stem Cell, Ovarian, and Ovarian Cancer Ascites Cell Cultures: The Real Embryonic Stem Cells? Cells 2019; 8:cells8070706. [PMID: 31336813 PMCID: PMC6678667 DOI: 10.3390/cells8070706] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 07/07/2019] [Accepted: 07/08/2019] [Indexed: 12/13/2022] Open
Abstract
A population of small stem cells with diameters of up to 5 μm resembling very small embryonic-like stem cells (VSELs) were sorted from human embryonic stem cell (hESC) cultures using magnetic-activated cell sorting (MACS) based on the expression of a stem-cell-related marker prominin-1 (CD133). These VSEL-like stem cells had nuclei that almost filled the whole cell volume and expressed stem-cell-related markers (CD133, SSEA-4) and markers of germinal lineage (DDX4/VASA, PRDM14). They were comparable to similar populations of small stem cells sorted from cell cultures of normal ovaries and were the predominant cells in ascites of recurrent ovarian cancer. The sorted populations of CD133+ VSEL-like stem cells were quiescent in vitro, except for ascites, and were highly activated after exposure to valproic acid and follicle-stimulating hormone (FSH), indicating a new tool to study these cells in vitro. These VSEL-like stem cells spontaneously formed clusters resembling tumour-like structures or grew into larger, oocyte-like cells and were differentiated in vitro into adipogenic, osteogenic and neural lineages after sorting. We propose the population of VSEL-like stem cells from hESC cultures as potential original embryonic stem cells, which are present in the human embryo, persist in adult human ovaries from the embryonic period of life and are involved in cancer manifestation.
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Ddx4 + Oogonial Stem Cells in Postmenopausal Women's Ovaries: A Controversial, Undefined Role. Cells 2019; 8:cells8070650. [PMID: 31261822 PMCID: PMC6678385 DOI: 10.3390/cells8070650] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Revised: 06/13/2019] [Accepted: 06/20/2019] [Indexed: 12/18/2022] Open
Abstract
Recent studies support the existence of oogonial stem cells (OSCs) in the ovarian cortex of different mammals, including women.These cells are characterized by small size, membrane expression of DEAD(Asp-Glu-Ala-Asp)-box polypeptide-4 (Ddx4), and stemness properties (such as self-renewal and clonal expansion) as well as the ability to differentiate in vitro into oocyte-like cells. However, the discovery of OSCs contrasts with the popular theory that there is a numerically defined oocyte pool for female fertility which undergoes exhaustion with menopause. Indeed, in the ovarian cortex of postmenopausal women OSCs have been detected that possess both viability and capability to differentiate into oocytes, which is similar to those observed in younger patients. The pathophysiological role of this cell population in aged women is still debated since OSCs, under appropriate stimuli, differentiate into somatic cells, and the occurrence of Ddx4+ cells in ovarian tumor samples also suggests their potential involvement in carcinogenesis. Although further investigation into these observations is needed to clarify OSC function in ovary physiology, clinical investigators and researchers studying female infertility are presently focusing on OSCs as a novel opportunity to restore ovarian reserve in both young women undergoing early ovarian failure and cancer survivors experiencing iatrogenic menopause.
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Bhartiya D. Stem cells survive oncotherapy & can regenerate non-functional gonads: A paradigm shift for oncofertility. Indian J Med Res 2019; 148:S38-S49. [PMID: 30964080 PMCID: PMC6469380 DOI: 10.4103/ijmr.ijmr_2065_17] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
A large proportion of patients who survive cancer are rendered infertile as an unwanted side effect of oncotherapy. Currently accepted approaches for fertility preservation involve banking eggs/sperm/embryos or ovarian/testicular tissue before oncotherapy for future use. Such approaches are invasive, expensive, technically challenging and depend on assisted reproductive technologies (ART). Establishing a gonadal tissue bank (for cancer patients) is also fraught with ethical, legal and safety issues. Most importantly, patients who find it difficult to meet expenses towards cancer treatment will find it difficult to meet expenses towards gonadal tissue banking and ART to achieve parenthood later on. In this review an alternative strategy to regenerate non-functional gonads in cancer survivors by targeting endogenous stem cells that survive oncotherapy is discussed. A novel population of pluripotent stem cells termed very small embryonic-like stem cells (VSELs), developmentally equivalent to late migratory primordial germ cells, exists in adult gonads and survives oncotherapy due to their quiescent nature. However, the stem-cell niche gets compromised by oncotherapy. Transplanting niche cells (Sertoli or mesenchymal cells) can regenerate the non-functional gonads. This approach is safe, has resulted in the birth of fertile offspring in mice and could restore gonadal function early in life to support proper growth and later serve as a source of gametes. This newly emerging understanding on stem cells biology can obviate the need to bank gonadal tissue and fertility may also be restored in existing cancer survivors who were earlier deprived of gonadal tissue banking before oncotherapy.
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Affiliation(s)
- Deepa Bhartiya
- Stem Cell Biology Department, ICMR-National Institute for Research in Reproductive Health, Mumbai, India
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Virant-Klun I. Functional Testing of Primitive Oocyte-like Cells Developed in Ovarian Surface Epithelium Cell Culture from Small VSEL-like Stem Cells: Can They Be Fertilized One Day? Stem Cell Rev Rep 2019; 14:715-721. [PMID: 29876729 DOI: 10.1007/s12015-018-9832-y] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Data from the literature show that there are different populations of stem cells present in human adult ovaries, including small stem cells resembling very small embryonic-like stem cells (VSELs). These small ovarian stem cells with diameters of up to 5 μm are present in the ovarian surface epithelium and can grow into bigger, primitive oocyte-like cells that express several markers of a germinal lineage and exhibit pluripotency but not the zona pellucida structure when cultured in vitro. In this report, we present the results of the functional testing of such primitive oocyte-like cells from one patient with premature ovarian failure after insemination with her partners' sperm. Knowing that even immature oocytes collected in an in vitro fertilization program cannot be fertilized naturally, we were only interested in determining whether and how these cells react to added sperm and whether spermatozoa somehow "recognize" them. Interestingly, the primitive oocyte-like cells quickly released a zona pellucida-like structure in the presence of sperm. Two different populations of cells were distinguished, those with a thick and those with a thin zona pellucida-like structure. The primitive oocyte-like cells with a released zona pellucida-like structure expressed the pluripotency-related gene OCT4A (POU5F1) and zona pellucida-related gene ZP3, similar to oocytes obtained from in vitro fertilization but not somatic chondrocytes. In a small proportion of these cells, a single-spermatozoon was observed inside the cytoplasm, but no signs of fertilization were found. These observations may suggest a primitive "cortical reaction". Our data further confirm the presence of germinal stem cells in the ovarian surface epithelium cell culture.
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Affiliation(s)
- Irma Virant-Klun
- Department of Obstetrics and Gynaecology, University Medical Centre Ljubljana, Slajmerjeva 3, 1000, Ljubljana, Slovenia.
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Bhartiya D, Patel H, Sharma D. Heterogeneity of Stem Cells in the Ovary. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1169:213-223. [PMID: 31487026 DOI: 10.1007/978-3-030-24108-7_11] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Every organ in the body is thought to harbor two populations of stem cells, including the quiescent and the actively dividing, that leads to heterogeneity among them. It is generally believed that the ovary harbors a fixed number of follicles at birth that differentiate during fetal development from the primordial germ cells. The numbers of follicles decrease by age, leading to menopause. However, in 2004, it was suggested that ovary may harbor stem cells that are possibly involved in the formation of new follicles throughout reproductive life. Research over little more than a decade shows that ovarian stem cells include a quiescent population of very small embryonic-like stem cells (VSELs) and slightly bigger, actively dividing ovarian stem cells (OSCs). This heterogeneity among ovarian stem cells is similar to the presence of VSELs along with spermatogonial stem cells (SSCs) in the testis or hematopoietic stem cells (HSCs) in the hematopoietic system. VSELs express embryonic markers, including nuclear OCT-4, and are lodged in the ovary surface epithelium (OSE). Ovarian VSELs undergo asymmetric cell division to self-renew and give rise to OSCs that in turn undergo symmetric cell divisions and clonal expansion (germ cell nest) followed by meiosis to form an oocyte that gets assembled as a primordial follicle. Both VSELs and OSCs also express receptors for follicle-stimulating hormone (FSHR) and are directly activated by FSH to undergo neo-oogenesis and primordial follicle assembly. Whether stimulation of ovaries by FSH in Infertility Clinics activates the stem cells leading to the formation of multiple follicles needs further investigation. Epithelial cells lining the surface of ovary provide a niche to the stem cells under normal circumstances and undergo epithelial-mesenchymal transition (EMT) to form granulosa cells for primordial follicle assembly. Compromised function of the epithelial cells with age possibly leads to inability of stem cells to form follicles, leading to menopause. More than 90% of ovarian cancers arise in the OSE, possibly due to excessive self-renewal of VSELs. Altered biology of the OSE cells results in the formation of myofibroblasts by EMT and may provide a cancerous niche that supports excessive expansion of the stem cells lodged in the OSE, leading to ovarian cancer. Ovarian cancer cells express markers like OCT-4 and FSHR, which are also expressed by the VSELs lodged in the OSE, whereas the epithelial cells are distinctly negative for the same. Lot more research is required in the field to gain further understanding of ovarian stem cell biology.
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Affiliation(s)
- Deepa Bhartiya
- Stem Cell Biology Department, ICMR-National Institute for Research in Reproductive Health, Mumbai, India.
| | - Hiren Patel
- Stem Cell Biology Department, ICMR-National Institute for Research in Reproductive Health, Mumbai, India
| | - Diksha Sharma
- Stem Cell Biology Department, ICMR-National Institute for Research in Reproductive Health, Mumbai, India
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Bhartiya D, Patel H, Parte S. Improved understanding of very small embryonic-like stem cells in adult mammalian ovary. Hum Reprod 2018; 33:978-979. [PMID: 29474556 DOI: 10.1093/humrep/dey039] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Indexed: 01/08/2023] Open
Affiliation(s)
- Deepa Bhartiya
- Stem Cell Biology Department, ICMR-National Institute for Research in Reproductive Health, Jehangir Merwanji Street, Parel, Mumbai 400012, India
| | - Hiren Patel
- Stem Cell Biology Department, ICMR-National Institute for Research in Reproductive Health, Jehangir Merwanji Street, Parel, Mumbai 400012, India
| | - Seema Parte
- Stem Cell Biology Department, ICMR-National Institute for Research in Reproductive Health, Jehangir Merwanji Street, Parel, Mumbai 400012, India
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James K, Bhartiya D, Ganguly R, Kaushik A, Gala K, Singh P, Metkari SM. Gonadotropin and steroid hormones regulate pluripotent very small embryonic-like stem cells in adult mouse uterine endometrium. J Ovarian Res 2018; 11:83. [PMID: 30241552 PMCID: PMC6148988 DOI: 10.1186/s13048-018-0454-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Accepted: 09/03/2018] [Indexed: 12/25/2022] Open
Abstract
Background Very small embryonic-like stem cells (VSELs) exist in adult organs, express pluripotent markers and have the ability to differentiate into three germ layers in vitro. Testicular, ovarian and hematopoietic stem/progenitor cells express receptors for follicle stimulating (FSH) and ovarian hormones and are activated by them to undergo proliferation/differentiation. VSELs exist in mouse uterus and are regulated by physiological dose of estradiol (E) & progesterone (P) during endometrial growth, differentiation and regeneration/remodeling. In the present study, effects of daily administration of E (2 μg/day), P (1 mg/Kg/day) or FSH (5 IU/day) for 7 days on the endometrium and stem/progenitor cells was studied in bilaterally ovariectomized mice. Results E treatment resulted in hypertrophy whereas P resulted in hyperplasia and overcrowding of epithelial cells. FSH also directly stimulated the endometrial cells. Nuclear OCT-4A positive VSELs were visualized in ovariectomized (atrophied) endometrium and cytoplasmic OCT-4B positive epithelial, stromal and endothelial cells were observed after treatment. FSH treated uterine tissue showed presence of 4 alternately spliced FSHR isoforms by Western blotting. 3–5 μm VSELs with a surface phenotype of LIN-/CD45-/SCA-1+ were enumerated by flow cytometry and were found to express ER, PR, FSHR1 and FSHR3 by RT-PCR analysis. Differential effects of treatment were observed on pluripotent (Oct4A, Sox2, Nanog), progenitors (Oct-4, Sca-1), primordial germ cells (Stella, Fragilis) and proliferation (Pcna) specific transcripts by qRT-PCR analysis. FSH and P (rather than E) exerted profound, direct stimulatory effects on uterine VSELs. Asymmetric, symmetric divisions and clonal expansion of stem/progenitor cells was confirmed by co-expression of OCT-4 and NUMB. Conclusions Results confirm presence of VSELs and their regulation by circulatory hormones in mouse uterus. Stem cell activation was more prominent after P and FSH compared to E treatment. The results question whether epithelial cells proliferation is regulated by paracrine influence of stromal cells or due to direct action of hormones on stem cells. VSELs expressing nuclear OCT-4A are the most primitive and pluripotent stem cells, undergo asymmetric cell division to self-renew and differentiate into epithelial, stromal and endothelial cells with cytoplasmic OCT-4B. Role of follicle stimulating and steroid hormones on the stem cells needs to be studied in various uterine pathologies.
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Affiliation(s)
- Kreema James
- Stem Cell Biology Department, ICMR - National Institute for Research in Reproductive Health, Jehangir Merwanji Street, Parel, Mumbai, 400 012, India
| | - Deepa Bhartiya
- Stem Cell Biology Department, ICMR - National Institute for Research in Reproductive Health, Jehangir Merwanji Street, Parel, Mumbai, 400 012, India.
| | - Ranita Ganguly
- Stem Cell Biology Department, ICMR - National Institute for Research in Reproductive Health, Jehangir Merwanji Street, Parel, Mumbai, 400 012, India
| | - Ankita Kaushik
- Stem Cell Biology Department, ICMR - National Institute for Research in Reproductive Health, Jehangir Merwanji Street, Parel, Mumbai, 400 012, India
| | - Kavita Gala
- Stem Cell Biology Department, ICMR - National Institute for Research in Reproductive Health, Jehangir Merwanji Street, Parel, Mumbai, 400 012, India
| | - Pushpa Singh
- Stem Cell Biology Department, ICMR - National Institute for Research in Reproductive Health, Jehangir Merwanji Street, Parel, Mumbai, 400 012, India
| | - S M Metkari
- Stem Cell Biology Department, ICMR - National Institute for Research in Reproductive Health, Jehangir Merwanji Street, Parel, Mumbai, 400 012, India
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Bhartiya D, Patel H, Ganguly R, Shaikh A, Shukla Y, Sharma D, Singh P. Novel Insights into Adult and Cancer Stem Cell Biology. Stem Cells Dev 2018; 27:1527-1539. [PMID: 30051749 DOI: 10.1089/scd.2018.0118] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Adult tissues are thought to harbor two populations of "dormant" and "actively dividing" stem cells. Quiescent stem cells undergo rare asymmetric cell divisions (ACDs) through which they self-renew and give rise to tissue-committed "progenitors" of distinct fate and "progenitors" in turn undergo symmetric cell divisions (SCDs) and clonal expansion. However, quiescent stem cells have not been demonstrated in adult tissues such as skin, testis, liver, and brain. After surgical removal of part of liver and pancreas-adult differentiated cells divide and regenerate and a possible role of stem cells remains doubtful. Long-term repopulating hematopoietic stem cells are quiescent in nature but ACD has not been convincingly demonstrated even among them. Attempts by various groups to identify a common stemness program that ensures self-renewal among different kinds of stem cells have also remained futile. Uncontrolled self-renewal and compromised differentiation of stem cells possibly initiate leukemia/cancer, but the identity of leukemic stem cells and whether cancer stem cells arise by epithelial-mesenchymal transition (EMT) in solid tumors are all open-ended questions that need greater clarity. Acceptance of the presence of very small embryonic-like stem cells (VSELs) in adult tissues could clarify several of these existing dilemmas in the field. Data are compiled showing that VSELs undergo ACD in the hematopoietic system, testis, ovary, uterus, and pancreas, whereas tissue-committed progenitors undergo SCD and clonal expansion. VSELs possess similar overlapping stemness program as in embryonic stem cells, embryonic carcinoma cells, embryonic germ cells, induced pluripotent stem cells, and primordial germ cells. VSELs and leukemic and cancer cells express overlapping embryonic markers. Uncontrolled proliferation of VSELs and compromised differentiation possibly initiate leukemia. Process of EMT and initiation of solid tumor from VSELs (located among the epithelial cells) are indeed two distinct and parallel events. To conclude, VSELs provide explanation to several confounding aspects of adult stem cell biology.
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Affiliation(s)
- Deepa Bhartiya
- Stem Cell Biology Department, ICMR-National Institute for Research in Reproductive Health , Mumbai, India
| | - Hiren Patel
- Stem Cell Biology Department, ICMR-National Institute for Research in Reproductive Health , Mumbai, India
| | - Ranita Ganguly
- Stem Cell Biology Department, ICMR-National Institute for Research in Reproductive Health , Mumbai, India
| | - Ambreen Shaikh
- Stem Cell Biology Department, ICMR-National Institute for Research in Reproductive Health , Mumbai, India
| | - Yashvi Shukla
- Stem Cell Biology Department, ICMR-National Institute for Research in Reproductive Health , Mumbai, India
| | - Diksha Sharma
- Stem Cell Biology Department, ICMR-National Institute for Research in Reproductive Health , Mumbai, India
| | - Pushpa Singh
- Stem Cell Biology Department, ICMR-National Institute for Research in Reproductive Health , Mumbai, India
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Parte SC, Batra SK, Kakar SS. Characterization of stem cell and cancer stem cell populations in ovary and ovarian tumors. J Ovarian Res 2018; 11:69. [PMID: 30121075 PMCID: PMC6098829 DOI: 10.1186/s13048-018-0439-3] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Accepted: 08/05/2018] [Indexed: 02/07/2023] Open
Abstract
Background Ovarian cancer is a complicated malady associated with cancer stem cells (CSCs) contributing to 238,700 estimated new cases and 151,900 deaths per year, worldwide. CSCs comprise a tiny fraction of tumor-bulk responsible for cancer recurrence and eventual mortality. CSCs or tumor initiating cells are responsible for self-renewal, differentiation and proliferative potential, tumor initiation capability, its progression, drug resistance and metastatic spread. Although several biomarkers are implicated in these processes, their distribution within the ovary and association with single cell type has neither been established nor demonstrated across ovarian tumor developmental stages. Therefore, precise identification, thorough characterization and effective targeted destruction of dormant and highly proliferating potent CSC populations is an immediate need. Results In view of this, distribution of various CSC (ALDH1/2, C-KIT, CD133, CD24 and CD44) and cell proliferation (KI67) specific markers in the ovarian surface epithelium (OSE) and cortex regions in normal ovary, and benign, borderline and high grade metastatic ovarian tumors by immuno-histochemistry and confocal microscopy was studied. We further confirmed their expression by RT-PCR analysis. Co-expression analysis of stem cell (OCT4, SSEA4) and CSC (ALDH1/2, CD44 and LGR5) markers with proliferation marker (KI67) in HG tumors revealed dual positive proliferating stem and CSCs, few non-proliferating stem/CSC (SSEA4+/KI67− and ALDH1/2+/KI67−) and only KI67+ cells in cortex, signifying dynamic populations and interesting cellular hierarchy in cortex region. Smaller spherical (≤ 5 μm) and larger spindle/elliptical shaped (~ 10 μm) cell populations with high nucleo-cytoplasmic ratio were detected across all samples (including normal ovaries) but with variable distribution and characteristic stage-wise marker expression across different tumor stages. Conclusions Diverse stem and CSC populations expressing characteristic markers revealing distinct phenotypes (spherical ≤5 μm and spindle/elliptical ~ 10 μm) were distributed within different tumor stages studied signifying dynamic and probable functional hierarchy within these cell types. Involvement of extra-ovarian sites of origin of stem and CSCs requires rigorous evaluation. Quantitative analysis of potent CSC populations, their mechanisms and pathways for self-renewal, chemo-resistance, metastatic spread etc. with respect to various markers studied, will provide better insights and targets for developing effective therapeutics to prevent metastasis and eventually help improve patient mortality. Electronic supplementary material The online version of this article (10.1186/s13048-018-0439-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Seema C Parte
- Department of Physiology, University of Louisville, 505 South Hancock Street, CTRB, Room 322, Louisville, 40202, KY, USA.,James Graham Brown Cancer Center, University of Louisville, Louisville, 40202, KY, USA
| | - Surinder K Batra
- Department of Biochemistry and Molecular Biology, University of Nebraska, Omaha, 68198, NE, USA
| | - Sham S Kakar
- Department of Physiology, University of Louisville, 505 South Hancock Street, CTRB, Room 322, Louisville, 40202, KY, USA. .,James Graham Brown Cancer Center, University of Louisville, Louisville, 40202, KY, USA.
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Silvestris E, Cafforio P, D'Oronzo S. Reply: Improved understanding of very small embryonic-like stem cells in adult mammalian ovary. Hum Reprod 2018; 33:979. [PMID: 29474551 DOI: 10.1093/humrep/dey040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Accepted: 02/06/2018] [Indexed: 11/12/2022] Open
Affiliation(s)
- E Silvestris
- Department of Biomedical Sciences and Human Oncology, Section of Internal Medicine and Clinical Oncology, University of Bari Aldo Moro, P.za G. Cesare, 11-70124 Bari, Italy.,Department of Emergency and Organ Transplantation, Section of Obstetrics and Gynecology, University of Bari Aldo Moro, P.za G. Cesare, 11-70124 Bari, Italy
| | - P Cafforio
- Department of Biomedical Sciences and Human Oncology, Section of Internal Medicine and Clinical Oncology, University of Bari Aldo Moro, P.za G. Cesare, 11-70124 Bari, Italy
| | - S D'Oronzo
- Department of Biomedical Sciences and Human Oncology, Section of Internal Medicine and Clinical Oncology, University of Bari Aldo Moro, P.za G. Cesare, 11-70124 Bari, Italy
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Bhartiya D. The need to revisit the definition of mesenchymal and adult stem cells based on their functional attributes. Stem Cell Res Ther 2018; 9:78. [PMID: 29587828 PMCID: PMC5870685 DOI: 10.1186/s13287-018-0833-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
A debate is ongoing about the ‘stem cell’ status of mesenchymal stem cells (MSCs). This can easily be resolved based on the definition of a stem cell. ‘True’ stem cells are expected to undergo asymmetric cell divisions (ACD) whereby they divide to self-renew and give rise to a slightly bigger, differentiated cell. However, MSCs like any other adult tissue-specific stem cells, including hematopoietic (HSCs), spermatogonial (SSCs) and ovarian (OSCs) stem cells, do not undergo ACD; rather they undergo rapid symmetrical cell divisions. The true stem cells in adult tissues are possibly the pluripotent stem cells termed very small embryonic-like stem cells (VSELs), which were recently shown to undergo ACD to give rise to tissue-specific stem cells ‘progenitors’ (currently termed ‘adult stem cells’) that in turn undergo rapid symmetric cell divisions and clonal expansion (sphere formation with incomplete cytokinesis) followed by differentiation into tissue-specific cell types. MSCs can be cultured from any tissue source and are an excellent source of growth factors/cytokines and thus could provide a niche for proper functioning of the stem/progenitor cells.
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Affiliation(s)
- Deepa Bhartiya
- Stem Cell Biology Department, ICMR-National Institute for Research in Reproductive Health, Jehangir Merwanji Street, Parel, Mumbai, 400012, India.
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