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Zhang S, Sui L, Kong X, Huang R, Li Z. HDAC6 decreases H4K16 and α-tubulin acetylation during porcine oocyte maturation. Cell Cycle 2023; 22:2057-2069. [PMID: 37904550 PMCID: PMC10761081 DOI: 10.1080/15384101.2023.2275907] [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: 04/28/2021] [Accepted: 10/22/2023] [Indexed: 11/01/2023] Open
Abstract
HDAC6 is an essential factor in mouse oocyte maturation. However, the roles of HDAC6 in porcine oocyte maturation are still unclear. Therefore, we analyzed the roles of HDAC6 in porcine oocyte maturation by treatment with Tubastatin A (TubA) which is an HDAC6 inhibitor. Our results showed that treatment with 10 μg/ml TubA significantly decreased the rate of porcine oocyte maturation, but it did not influence the rate of germinal vesicle breakdown (GVBD). Then, we found that TubA treatment disrupted spindle organization by increasing the α-tubulin acetylation level during porcine oocyte maturation. Moreover, TubA treatment significantly increased H4K16 acetylation, which may compromise kinetochore and microtubule (K-MT) attachment during meiosis in porcine oocytes. We also analyzed the effects of TubA on meiosis-related (H3T3pho and H3S10pho) and transcription-related histone modifications (H3K4me3, H3K9me3 and H3K4ac) during porcine oocyte maturation. The results showed that TubA treatment increased H3S10pho and H3K4ac levels, but no influence was seen in H3T3pho, H3K4me3 and H3K9me3 levels in porcine oocytes. TubA treated oocytes also showed a compromised ability to develop after parthenogenetic activation. Finally, we found that HDAC6 exhibited higher mRNA levels and lower DNA methylation levels in porcine oocytes than it did in porcine embryonic fibroblasts (PEFs). These results indicate that the low level of DNA methylation in HDAC6 promoter ensures high expression. HDAC6 regulates the deacetylation of α-tubulin and H4K16, which promotes correct spindle organization and meiotic apparatus assembly during porcine oocyte maturation. This study illustrates a new pathway by which HDAC6 modulates mammalian oocyte maturation.
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Affiliation(s)
- Sheng Zhang
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, First Hospital, Jilin University, Changchun, Jilin, China
| | - Liyan Sui
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, First Hospital, Jilin University, Changchun, Jilin, China
| | - Xiangjie Kong
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, First Hospital, Jilin University, Changchun, Jilin, China
| | - Rong Huang
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, First Hospital, Jilin University, Changchun, Jilin, China
| | - Ziyi Li
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, First Hospital, Jilin University, Changchun, Jilin, China
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Jorge AS, Recchia K, Glória MH, de Souza AF, Pessôa LVDF, Fantinato Neto P, Martins DDS, de Andrade AFC, Martins SMMK, Bressan FF, Pieri NCG. Porcine Germ Cells Phenotype during Embryonic and Adult Development. Animals (Basel) 2023; 13:2520. [PMID: 37570330 PMCID: PMC10417053 DOI: 10.3390/ani13152520] [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: 06/12/2023] [Revised: 07/31/2023] [Accepted: 08/01/2023] [Indexed: 08/13/2023] Open
Abstract
Primordial germ cells (PGCs) are the precursors of gametes. Due to their importance for the formation and reproduction of an organism, understanding the mechanisms and pathways of PGCs and the differences between males and females is essential. However, there is little research in domestic animals, e.g., swine, regarding the epigenetic and pluripotency profiles of PGCs during development. This study analyzed the expression of epigenetic and various pluripotent and germline markers associated with the development and differentiation of PGCs in porcine (pPGCs), aiming to understand the different gene expression profiles between the genders. The analysis of gonads at different gestational periods (from 24 to 35 days post fertilization (dpf) and in adults) was evaluated by immunofluorescence and RT-qPCR and showed phenotypic differences between the gonads of male and female embryos. In addition, the pPGCs were positive for OCT4 and VASA; some cells were H3k27me3 positive in male embryos and adult testes. In adults, the cells of the testes were positive for germline markers, as confirmed by gene expression analysis. The results may contribute to understanding the pPGC pathways during reproductive development, while also contributing to the knowledge needed to generate mature gametes in vitro.
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Affiliation(s)
- Amanda Soares Jorge
- Department of Veterinary Medicine, School of Animal Sciences and Food Engineering, University of Sao Paulo, Pirassununga 13635-900, SP, Brazil; (A.S.J.); (M.H.G.); (L.V.d.F.P.); (P.F.N.); (D.d.S.M.); (F.F.B.)
| | - Kaiana Recchia
- Department of Surgery, Faculty of Veterinary Medicine and Animal Sciences, University of Sao Paulo, São Paulo 01001-010, SP, Brazil;
| | - Mayra Hirakawa Glória
- Department of Veterinary Medicine, School of Animal Sciences and Food Engineering, University of Sao Paulo, Pirassununga 13635-900, SP, Brazil; (A.S.J.); (M.H.G.); (L.V.d.F.P.); (P.F.N.); (D.d.S.M.); (F.F.B.)
| | - Aline Fernanda de Souza
- Department Biomedical Science, Ontario Veterinary College (OVC), University of Guelph, Guelph, ON N1G 2W1, Canada;
| | - Laís Vicari de Figueirêdo Pessôa
- Department of Veterinary Medicine, School of Animal Sciences and Food Engineering, University of Sao Paulo, Pirassununga 13635-900, SP, Brazil; (A.S.J.); (M.H.G.); (L.V.d.F.P.); (P.F.N.); (D.d.S.M.); (F.F.B.)
| | - Paulo Fantinato Neto
- Department of Veterinary Medicine, School of Animal Sciences and Food Engineering, University of Sao Paulo, Pirassununga 13635-900, SP, Brazil; (A.S.J.); (M.H.G.); (L.V.d.F.P.); (P.F.N.); (D.d.S.M.); (F.F.B.)
| | - Daniele dos Santos Martins
- Department of Veterinary Medicine, School of Animal Sciences and Food Engineering, University of Sao Paulo, Pirassununga 13635-900, SP, Brazil; (A.S.J.); (M.H.G.); (L.V.d.F.P.); (P.F.N.); (D.d.S.M.); (F.F.B.)
| | - André Furugen Cesar de Andrade
- Department of Animal Reproduction, Faculty of Veterinary Medicine and Animal Sciences, University of Sao Paulo, Pirassununga 13635-900, SP, Brazil;
| | | | - Fabiana Fernandes Bressan
- Department of Veterinary Medicine, School of Animal Sciences and Food Engineering, University of Sao Paulo, Pirassununga 13635-900, SP, Brazil; (A.S.J.); (M.H.G.); (L.V.d.F.P.); (P.F.N.); (D.d.S.M.); (F.F.B.)
- Department of Surgery, Faculty of Veterinary Medicine and Animal Sciences, University of Sao Paulo, São Paulo 01001-010, SP, Brazil;
| | - Naira Caroline Godoy Pieri
- Department of Veterinary Medicine, School of Animal Sciences and Food Engineering, University of Sao Paulo, Pirassununga 13635-900, SP, Brazil; (A.S.J.); (M.H.G.); (L.V.d.F.P.); (P.F.N.); (D.d.S.M.); (F.F.B.)
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3
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Wu M, Lu Z, Zhu Q, Ma L, Xue L, Li Y, Zhou S, Yan W, Ye W, Zhang J, Luo A, Wang S. DDX4 + stem cells in the ovaries of postmenopausal women: existence and differentiation potential. Stem Cells 2022; 40:88-101. [PMID: 35511860 DOI: 10.1093/stmcls/sxab002] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 09/02/2021] [Indexed: 11/12/2022]
Abstract
Abstract
Ovarian aging is a pacemaker with multiple organ dysfunction. Recently, stem cells with the ability to generate new oocytes have been identified, which provides the possibility of stem cell therapy for ovarian aging. Several studies have revealed the existence of stem cells in human postmenopausal ovary. In this study, we describe a new method using magnetic activated cell sorting combined with differential adhesion to isolate DDX4 + stem cells from ovaries of postmenopausal women and show that the cells exhibit similar gene expression profiles and growth characteristics with primitive germ cells. Furthermore, the DDX4 + stem cells could enter meiosis stage and differentiation into oocytes. The RNA-seq data of the differentiated oocytes shows that mitochondrial metabolism may play an important role in the oogenesis process of the DDX4 + stem cells. Through using human ovarian cortical fragments transplantation model, we indicated that the GFP-DDX4 + stem cells differentiated into some GFP positive oocyte-like structure in vivo. Our study provided a new method for the isolation of DDX4 + stem cells from the ovaries of postmenopausal women and confirmed the ability of these stem cells to differentiate into oocytes.
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Affiliation(s)
- Meng Wu
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Zhiyong Lu
- Hubei Key Laboratory of Embryonic Stem Cell Research, TaiHe Hospital, Hubei University of Medicine, Shiyan, China
| | - Qingqing Zhu
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Lingwei Ma
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Liru Xue
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Yan Li
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Su Zhou
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Wei Yan
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Wenlei Ye
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jinjin Zhang
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Aiyue Luo
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Shixuan Wang
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
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Wang X, Zu Q, Lu J, Zhang L, Zhu Q, Sun X, Dong J. Effects of Donor-Recipient Age Difference in Renal Transplantation, an Investigation on Renal Function and Fluid Proteome. Clin Interv Aging 2021; 16:1457-1470. [PMID: 34349505 PMCID: PMC8326938 DOI: 10.2147/cia.s314587] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 07/06/2021] [Indexed: 12/18/2022] Open
Abstract
Introduction Our previous study revealed that a young internal environment ameliorated kidney aging by virtue of an animal model of heterochronic parabiosis and a model of heterochronic renal transplantation. In this research, we used proteome to investigate the effects of donor-recipient age difference in clinical renal transplantation. Methods This study included 10 pairs of renal transplantation donors and recipients with an age difference of greater than 20 years to their corresponding recipients/donors. All recipients have received transplantation more than 3 years ago. Renal function and the serum/urine proteomes of the donors and recipients were analyzed. Results The renal function was similar between the young recipients and the old donors. In contrast, the renal function of the young donors was significantly superior to that of the old recipients. Furthermore, 497 and 975 proteins were identified in the serum and urine proteomes, respectively. The content of SLC3A2 in the blood was found to be related to aging, while the contents of SERPINA1 and SERPINA3 in the urine were related to immune functions after renal transplantation. Conclusion This study demonstrated that, in the human body, a younger internal environment could ameliorate kidney aging and provided not only clinical evidence for increasing the age limit of kidney transplant donors but also new information for kidney aging research.
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Affiliation(s)
- Xinning Wang
- Department of Urology, Chinese PLA General Hospital, Beijing, People's Republic of China
| | - Qiang Zu
- Department of Urology, Chinese PLA General Hospital, Beijing, People's Republic of China
| | - Jinshan Lu
- Department of Urology, Chinese PLA General Hospital, Beijing, People's Republic of China
| | - Lei Zhang
- Department of Urology, Chinese PLA General Hospital, Beijing, People's Republic of China
| | - Qiang Zhu
- Department of Urology, Chinese PLA General Hospital, Beijing, People's Republic of China
| | - Xuefeng Sun
- Department of Nephrology, Chinese PLA General Hospital, Beijing, People's Republic of China
| | - Jun Dong
- Department of Urology, Chinese PLA General Hospital, Beijing, People's Republic of China
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5
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The Scientific and Cultural Journey to Ovarian Rejuvenation: Background, Barriers, and Beyond the Biological Clock. MEDICINES 2021; 8:medicines8060029. [PMID: 34201170 PMCID: PMC8228162 DOI: 10.3390/medicines8060029] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 05/31/2021] [Accepted: 06/07/2021] [Indexed: 12/24/2022]
Abstract
Female age has been known to define reproductive outcome since antiquity; attempts to improve ovarian function may be considered against a sociocultural landscape that foreshadows current practice. Ancient writs heralded the unlikely event of an older woman conceiving as nothing less than miraculous. Always deeply personal and sometimes dynastically pivotal, the goal of achieving pregnancy often engaged elite healers or revered clerics for help. The sorrow of defeat became a potent motif of barrenness or miscarriage lamented in art, music, and literature. Less well known is that rejuvenation practices from the 1900s were not confined to gynecology, as older men also eagerly pursued methods to turn back their biological clock. This interest coalesced within the nascent field of endocrinology, then an emerging specialty. The modern era of molecular science is now offering proof-of-concept evidence to address the once intractable problem of low or absent ovarian reserve. Yet, ovarian rejuvenation by platelet-rich plasma (PRP) originates from a heritage shared with both hormone replacement therapy (HRT) and sex reassignment surgery. These therapeutic ancestors later developed into allied, but now distinct, clinical fields. Here, current iterations of intraovarian PRP are discussed with historical and cultural precursors centering on cell and tissue regenerative effects. Intraovarian PRP thus shows promise for women in menopause as an alternative to conventional HRT, and to those seeking pregnancy—either with advanced reproductive technologies or as unassisted conceptions.
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6
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Bahmanpour S, Moradiyan E, Dehghani F, Zarei-Fard N. Chemoprotective effects of plasma derived from mice of different ages and genders on ovarian failure after cyclophosphamide treatment. J Ovarian Res 2020; 13:138. [PMID: 33239062 PMCID: PMC7690033 DOI: 10.1186/s13048-020-00735-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Accepted: 11/03/2020] [Indexed: 11/12/2022] Open
Abstract
Background Premature ovarian failure is one of the major side effects of chemotherapy drugs. Blood plasma contains several factors that might lead to the repair of different tissues. Objective The chemoprotective effects of plasma derived from mice with different ages and genders were assessed on ovarian tissue in cyclophosphamide-treated mice. Methods Forty-two adult female mice were divided into six groups as follows: (A) control; (B) 0.9% sodium chloride as vehicle; (C) cyclophosphamide; (D) cyclophosphamide + young male blood plasma; (E) cyclophosphamide + old male blood plasma; (F) cyclophosphamide + young female blood plasma. Ovarian failure was induced by injecting cyclophosphamide. On the 1st day, three groups received simultaneous injections of 150 μL intraperitoneal and 70 μL intravenous plasma derived from mice of different ages and genders. Each plasma type (150 μL) was then injected intraperitoneally every other 3 days for 19 days. On day 21, the dissected ovaries were stained for stereological analysis. Also, estrogen and progesterone levels were measured. Results Cyclophosphamide had damaging effects on ovarian parameters and led to reduced hormone levels in comparison with the control group. However, treating with young female and, old male blood plasma, to a lesser degree, showed beneficial effects on the number of primordial follicles, pre-antral follicles, and granulosa cells. Also, these two treatments had protective effects on the volume of ovarian parameters as well as estrogen and progesterone levels in comparison with the cyclophosphamide group (P < 0.05). Conclusion Plasma derived from mice of different ages and genders can ameliorate premature ovarian failure against the adverse effects of cyclophosphamide.
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Affiliation(s)
- Soghra Bahmanpour
- Anatomy Department, School of Medicine, Shiraz University of Medical Sciences, Zand St., Shiraz, 7134845794, Iran
| | - Eisa Moradiyan
- Anatomy Department, School of Medicine, Shiraz University of Medical Sciences, Zand St., Shiraz, 7134845794, Iran
| | - Farzaneh Dehghani
- Anatomy Department, School of Medicine, Shiraz University of Medical Sciences, Zand St., Shiraz, 7134845794, Iran.,Histomorphometry and Stereology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Nehleh Zarei-Fard
- Anatomy Department, School of Medicine, Shiraz University of Medical Sciences, Zand St., Shiraz, 7134845794, Iran.
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7
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Satirapod C, Wang N, MacDonald JA, Sun M, Woods DC, Tilly JL. Estrogen regulation of germline stem cell differentiation as a mechanism contributing to female reproductive aging. Aging (Albany NY) 2020; 12:7313-7333. [PMID: 32302290 PMCID: PMC7202493 DOI: 10.18632/aging.103080] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Accepted: 03/10/2020] [Indexed: 05/09/2023]
Abstract
Progressive loss of ovarian estrogen (E2) production is a hallmark feature of, if not a driving force behind, reproductive aging and the menopause. Recent genetic studies in mice have shown that female germline or oogonial stem cells (OSCs) contribute to maintenance of adult ovarian function and fertility under physiological conditions through support of de-novo oogenesis. Here we show that mouse OSCs express E2 receptor-α (ERα). In the presence of E2, ERα interacts with the stimulated by retinoic acid gene 8 (Stra8) promoter to drive Stra8 expression followed by oogenesis. Treatment of mice with E2 in vivo increases Stra8 expression and oogenesis, and these effects are nullified by ERα (Esr1), but not ERβ (Esr2), gene disruption. Although mice lacking ERα are born with a normal quota of oocytes, ERα-deficient females develop premature ovarian insufficiency in adulthood due to impaired oogenesis. Lastly, mice treated with reversible ER antagonists show a loss of Stra8 expression and oocyte numbers; however, both endpoints rebound to control levels after ceasing drug treatment. These findings establish a key physiological role for E2-ERα signaling in promoting OSC differentiation as a potential mechanism to maintain adequate numbers of ovarian follicles during reproductive life.
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Affiliation(s)
- Chonthicha Satirapod
- Vincent Center for Reproductive Biology, Massachusetts General Hospital, Boston, MA 02114, USA
- Department of Obstetrics, Gynecology and Reproductive Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Ning Wang
- Vincent Center for Reproductive Biology, Massachusetts General Hospital, Boston, MA 02114, USA
- Department of Obstetrics, Gynecology and Reproductive Biology, Harvard Medical School, Boston, MA 02115, USA
- Current address: Department of Molecular and Integrative Physiology, University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Julie A. MacDonald
- Department of Biology, Laboratory of Aging and Infertility Research, Northeastern University, Boston, MA 02115, USA
- Current address: Department of Medical Oncology Dana-Farber Cancer Institute and Harvard Medical School, Boston, MA 02115, USA
| | - Minghan Sun
- Vincent Center for Reproductive Biology, Massachusetts General Hospital, Boston, MA 02114, USA
- Department of Obstetrics, Gynecology and Reproductive Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Dori C. Woods
- Department of Biology, Laboratory of Aging and Infertility Research, Northeastern University, Boston, MA 02115, USA
| | - Jonathan L. Tilly
- Department of Biology, Laboratory of Aging and Infertility Research, Northeastern University, Boston, MA 02115, USA
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8
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Age-related immune-modulating properties of seminal fluid that control the severity of asthma are gender specific. Aging (Albany NY) 2020; 11:707-723. [PMID: 30677748 PMCID: PMC6366957 DOI: 10.18632/aging.101773] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Accepted: 01/10/2019] [Indexed: 02/04/2023]
Abstract
Reproductive organs play a pivotal role in asthma development and progression, especially in women. Endocrine environment changes associated with the menstrual cycle, pregnancy, and menopause can exacerbate the clinical features of asthma. Factors secreted by reproductive organs may be responsible for the gender difference and age-related changes in adult asthma. Here, we show that mammalian seminal fluid has anti-asthma effects exclusively in females. Exposure to murine seminal fluid markedly reduced eosinophilic airway inflammation in 2-month-old female mice upon ovalbumin inhalation. The anti-asthma effect with seminal fluid from 10-month-old males was double that with fluid from 2-month-old males, suggesting that it depended on male sexual maturation. We further found that seminal fluid from middle-aged human volunteers had beneficial effects in asthmatic female mice; these effects were associated with transcriptional repression of osteopontin and IL-17A, which are poor prognostic factors for asthma. In 2-month-old male mice, however, human seminal fluid failed to decrease asthmatic features and even enhanced osteopontin and IL-17A transcription. Our data demonstrate that age-related seminal fluid exerts opposing effects in asthmatic male and female mice. These findings may help the development of novel approaches to control the prevalence and age-related progression of asthma in women.
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9
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Guo H, Du X, Zhang Y, Wu J, Wang C, Li M, Hua X, Zhang XA, Yan J. Specific miRNA-G Protein-Coupled Receptor Networks Regulate Sox9a/Sox9b Activities to Promote Gonadal Rejuvenation in Zebrafish. Stem Cells 2019; 37:1189-1199. [DOI: 10.1002/stem.3040] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 04/17/2019] [Accepted: 05/04/2019] [Indexed: 12/16/2022]
Affiliation(s)
- Huiping Guo
- Department of Developmental Biology; Institute for Marine Biosystem and Neurosciences; People's Republic of China
| | - Xinlu Du
- Department of Developmental Biology; Institute for Marine Biosystem and Neurosciences; People's Republic of China
| | - Ying Zhang
- Department of Developmental Biology; Institute for Marine Biosystem and Neurosciences; People's Republic of China
| | - Jiacheng Wu
- Department of Developmental Biology; Institute for Marine Biosystem and Neurosciences; People's Republic of China
| | - Chenghui Wang
- Department of Aquaculture; Shanghai Ocean University; Lingang New City, Shanghai People's Republic of China
| | - Mingyou Li
- Department of Developmental Biology; Institute for Marine Biosystem and Neurosciences; People's Republic of China
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources; Ministry of Education; Shanghai People's Republic of China
| | - Xianxin Hua
- Department of Cancer Biology; University of Pennsylvania Perelman School of Medicine; Philadelphia, Pennsylvania USA
| | - Xin A. Zhang
- Stephenson Cancer Center and Department of Physiology; The University of Oklahoma Health Sciences Center; Oklahoma City Oklahoma USA
| | - Jizhou Yan
- Department of Developmental Biology; Institute for Marine Biosystem and Neurosciences; People's Republic of China
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources; Ministry of Education; Shanghai People's Republic of China
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10
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Akahori T, Woods DC, Tilly JL. Female Fertility Preservation through Stem Cell-based Ovarian Tissue Reconstitution In Vitro and Ovarian Regeneration In Vivo. CLINICAL MEDICINE INSIGHTS. REPRODUCTIVE HEALTH 2019; 13:1179558119848007. [PMID: 31191070 PMCID: PMC6540489 DOI: 10.1177/1179558119848007] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Accepted: 03/27/2019] [Indexed: 12/13/2022]
Abstract
Historically, approaches designed to offer women diagnosed with cancer the prospects of having a genetically matched child after completion of their cytotoxic treatments focused on the existing oocyte population as the sole resource available for clinical management of infertility. In this regard, elective oocyte and embryo cryopreservation, as well as autologous ovarian cortical tissue grafting posttreatment, have gained widespread support as options for young girls and reproductive-age women who are faced with cancer to consider. In addition, the use of ovarian protective therapies, including gonadotropin-releasing hormone agonists and sphingosine-1-phosphate analogs, has been put forth as an alternative way to preserve fertility by shielding existing oocytes in the ovaries in vivo from the side-effect damage caused by radiotherapy and many chemotherapeutic regimens. This viewpoint changed with the publication of now numerous reports that adult ovaries of many mammalian species, including humans, contain a rare population of oocyte-producing germ cells-referred to as female germline or oogonial stem cells (OSCs). This new line of study has fueled research into the prospects of generating new oocytes, rather than working with existing oocytes, as a novel approach to sustain or restore fertility in female cancer survivors. Here, we overview the history of work from laboratories around the world focused on improving our understanding of the biology of OSCs and how these cells may be used to reconstitute "artificial" ovarian tissue in vitro or to regenerate damaged ovarian tissue in vivo as future fertility-preservation options.
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Affiliation(s)
- Taichi Akahori
- Laboratory for Aging and Infertility Research, Department of Biology, Northeastern University, Boston, MA, USA.,On leave from the Department of Obstetrics and Gynecology, Saitama Medical Center, Saitama Medical University, Saitama, Japan
| | - Dori C Woods
- Laboratory for Aging and Infertility Research, Department of Biology, Northeastern University, Boston, MA, USA
| | - Jonathan L Tilly
- Laboratory for Aging and Infertility Research, Department of Biology, Northeastern University, Boston, MA, USA
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11
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Yi ZY, Liang QX, Meng TG, Li J, Dong MZ, Hou Y, Ouyang YC, Zhang CH, Schatten H, Sun QY, Qiao J, Qian WP. PKCβ1 regulates meiotic cell cycle in mouse oocyte. Cell Cycle 2019; 18:395-412. [PMID: 30730241 DOI: 10.1080/15384101.2018.1564492] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
PKCβI, a member of the classical protein kinase C family, plays key roles in regulating cell cycle transition. Here, we report the expression, localization and functions of PKCβI in mouse oocyte meiotic maturation. PKCβI and p-PKCβI (phosphor-PKCβI) were expressed from germinal vesicle (GV) stage to metaphase II (MII) stage. Confocal microscopy revealed that PKCβI was localized in the GV and evenly distributed in the cytoplasm after GV breakdown (GVBD), and it was concentrated at the midbody at telophase in meiotic oocytes. While, p-PKCβI was concentrated at the spindle poles at the metaphase stages and associated with midbody at telophase. Depletion of PKCβI by specific siRNA injection resulted in defective spindles, accompanied with spindle assembly checkpoint activation, metaphase I arrest and failure of first polar body (PB1) extrusion. Live cell imaging analysis also revealed that knockdown of PKCβI resulted in abnormal spindles, misaligned chromosomes, and meiotic arrest of oocytes arrest at the Pro-MI/MI stage. PKCβI depletion did not affect the G2/M transition, but its overexpression delayed the G2/M transition through regulating Cyclin B1 level and Cdc2 activity. Our findings reveal that PKCβI is a critical regulator of meiotic cell cycle progression in oocytes. Abbreviations: PKC, protein kinase C; COC, cumulus-oocyte complexes; GV, germinal vesicle; GVBD, germinal vesicle breakdown; Pro-MI, first pro-metaphase; MI, first metaphase; Tel I, telophase I; MII, second metaphase; PB1, first polar body; SAC, spindle assembly checkpoint.
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Affiliation(s)
- Zi-Yun Yi
- a The Reproductive Medicine Center , Peking University Shenzhen Hospital, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center , Shenzhen , China
| | - Qiu-Xia Liang
- a The Reproductive Medicine Center , Peking University Shenzhen Hospital, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center , Shenzhen , China
| | - Tie-Gang Meng
- b State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences , Beijing , China
| | - Jian Li
- a The Reproductive Medicine Center , Peking University Shenzhen Hospital, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center , Shenzhen , China
| | - Ming-Zhe Dong
- b State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences , Beijing , China
| | - Yi Hou
- b State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences , Beijing , China
| | - Ying-Chun Ouyang
- b State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences , Beijing , China
| | - Chun-Hui Zhang
- a The Reproductive Medicine Center , Peking University Shenzhen Hospital, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center , Shenzhen , China
| | - Heide Schatten
- c Department of Veterinary Pathobiology , University of Missouri-Columbia , Columbia , MO , USA
| | - Qing-Yuan Sun
- b State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences , Beijing , China
| | - Jie Qiao
- d Reproductive Medical Center , Peking University Third Hospital , Beijing , China
| | - Wei-Ping Qian
- a The Reproductive Medicine Center , Peking University Shenzhen Hospital, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center , Shenzhen , China
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12
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Martin JJ, Woods DC, Tilly JL. Implications and Current Limitations of Oogenesis from Female Germline or Oogonial Stem Cells in Adult Mammalian Ovaries. Cells 2019; 8:E93. [PMID: 30696098 PMCID: PMC6407002 DOI: 10.3390/cells8020093] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Accepted: 01/16/2019] [Indexed: 12/15/2022] Open
Abstract
A now large body of evidence supports the existence of mitotically active germ cells in postnatal ovaries of diverse mammalian species, including humans. This opens the possibility that adult stem cells naturally committed to a germline fate could be leveraged for the production of female gametes outside of the body. The functional properties of these cells, referred to as female germline or oogonial stem cells (OSCs), in ovaries of women have recently been tested in various ways, including a very recent investigation of the differentiation capacity of human OSCs at a single cell level. The exciting insights gained from these experiments, coupled with other data derived from intraovarian transplantation and genetic tracing analyses in animal models that have established the capacity of OSCs to generate healthy eggs, embryos and offspring, should drive constructive discussions in this relatively new field to further exploring the value of these cells to the study, and potential management, of human female fertility. Here, we provide a brief history of the discovery and characterization of OSCs in mammals, as well as of the in-vivo significance of postnatal oogenesis to adult ovarian function. We then highlight several key observations made recently on the biology of OSCs, and integrate this information into a broader discussion of the potential value and limitations of these adult stem cells to achieving a greater understanding of human female gametogenesis in vivo and in vitro.
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Affiliation(s)
- Jessica J Martin
- Laboratory of Aging and Infertility Research, Department of Biology, Northeastern University, Boston, MA 02115, USA.
| | - Dori C Woods
- Laboratory of Aging and Infertility Research, Department of Biology, Northeastern University, Boston, MA 02115, USA.
| | - Jonathan L Tilly
- Laboratory of Aging and Infertility Research, Department of Biology, Northeastern University, Boston, MA 02115, USA.
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13
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Wang YK, Yu XX, Liu YH, Li X, Liu XM, Wang PC, Liu S, Miao JK, Du ZQ, Yang CX. Reduced nucleic acid methylation impairs meiotic maturation and developmental potency of pig oocytes. Theriogenology 2018; 121:160-167. [PMID: 30165304 DOI: 10.1016/j.theriogenology.2018.08.009] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Revised: 07/26/2018] [Accepted: 08/07/2018] [Indexed: 12/26/2022]
Abstract
Oocyte meiosis is a complex process coordinated by multiple endocrinal and molecular circuits. Recently, N6-methyladenosine (m6A) epigenetic modification on RNA is revealed to be important for meiotic maturation. However, the molecular mechanism of how m6A modification exerts its effect on oocyte maturation is largely unknown. Here, we showed that endogenous m6A writers (Mettl3 and Wtap) and eraser (Fto) elevated their transcript levels during meiotic maturation of pig oocytes. From germinal vesicle (GV) to metaphase II (MII) stages, global m6A level significantly increased, and existed mostly in ooplasm. Methyl donor (betaine, 16 mM) treatment of porcine cumulus-oocyte complexes (COCs) during in vitro maturation (IVM) significantly boosted nucleic acid m6A level within oocytes, but unchanged meiotic process and oocyte subsequent development. By contrast, methylation inhibitor (cycloleucine, 20 mM) reduced nucleic acid m6A level, and significantly decreased the germinal vesicle breakdown (GVBD) rate, the extrusion rate of the first polar body, and the cleavage and blastocyst rates of parthenotes. In addition, in cycloleucine-treated oocytes Wtap increased but Lin28 decreased their abundances significantly, along with the higher incidence of spindle defects and chromosome misalignment. Furthermore, pT161-CDK1 protein level in pig oocytes was confirmed to be decreased after cycloleucine treatment for 24 h. Taken together, chemical induced reduction of nucleic acid m6A methylation during pig oocyte meiosis could impair meiotic maturation and subsequent development potency, possibly through down-regulating pluripotency marker Lin28 mRNA abundance and disturbing MPF-regulated chromosome/spindle organization.
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Affiliation(s)
- Yan-Kui Wang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
| | - Xiao-Xia Yu
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
| | - Yun-Hua Liu
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
| | - Xuan Li
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
| | - Xiao-Man Liu
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
| | - Pei-Chao Wang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
| | - Shuai Liu
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
| | - Jia-Kun Miao
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
| | - Zhi-Qiang Du
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
| | - Cai-Xia Yang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China.
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14
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Liu D, Lun L, Huang Q, Ning Y, Zhang Y, Wang L, Yin Z, Zhang Y, Xia L, Yin Z, Fu B, Cai G, Sun X, Chen X. Youthful systemic milieu alleviates renal ischemia-reperfusion injury in elderly mice. Kidney Int 2018; 94:268-279. [PMID: 29935950 DOI: 10.1016/j.kint.2018.03.019] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Revised: 02/28/2018] [Accepted: 03/22/2018] [Indexed: 01/16/2023]
Abstract
The incidence of acute kidney injury (AKI) is high in elderly people, and is difficult to prevent and treat. One of its major causes is renal ischemia-reperfusion injury (IRI). A young systemic environment may prevent the senescence of old organs. However, it is unknown whether a young milieu may reduce renal IRI in the elderly. To examine this question, bilateral renal IRI was induced in old (24 months) mice three weeks after parabiosis model establishment. At 24 hours after IRI, compared to old wild-type mice, the old mice with IRI had significantly damaged renal histology, decreased renal function, increased oxidative stress, inflammation, and apoptosis. However, there was no increase in autophagy. Compared to old mice with IRI, old-old parabiosis mice with IRI did not show differences in renal histological damage, oxidative stress, inflammation, apoptosis, or autophagy, but did exhibit improved renal function. Compared to the old-old parabiosis mice with IRI, the old mice with IRI in the young (12 week)-old parabiosis showed less renal histological injury and better renal function. Renal oxidative stress, inflammation, and apoptosis were significantly decreased, and autophagy was significantly increased. Thus, a youthful systemic milieu may decrease oxidative stress, inflammation, and apoptosis, and increase autophagy in old mice with IRI. These effects ameliorated IRI injuries in old mice. Our study provides new ideas for effectively preventing and treating AKI in the elderly.
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Affiliation(s)
- Dong Liu
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing, China; Department of Nephrology, Air Force General Hospital, Chinese PLA, Beijing, China
| | - Lide Lun
- Department of Nephrology, Air Force General Hospital, Chinese PLA, Beijing, China
| | - Qi Huang
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing, China
| | - Yichun Ning
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing, China; Department of Nephrology, Zhongshan Hospital, Fudan University, Kidney and Dialysis Institute of Shanghai, Kidney and Blood Purification Laboratory of Shanghai, Shanghai, China
| | - Ying Zhang
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing, China
| | - Linna Wang
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing, China
| | - Zhiwei Yin
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing, China
| | - Yinping Zhang
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing, China
| | - Lihua Xia
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing, China
| | - Zhong Yin
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing, China
| | - Bo Fu
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing, China
| | - Guangyan Cai
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing, China
| | - Xuefeng Sun
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing, China.
| | - Xiangmei Chen
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing, China.
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15
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Zhou D, Choi YJ, Kim JH. Histone deacetylase 6 (HDAC6) is an essential factor for oocyte maturation and asymmetric division in mice. Sci Rep 2017; 7:8131. [PMID: 28811599 PMCID: PMC5557833 DOI: 10.1038/s41598-017-08650-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Accepted: 07/11/2017] [Indexed: 12/23/2022] Open
Abstract
Tubastatin A (Tub-A), a highly selective histone deacetylase 6 (HDAC6) inhibitor, has been widely used as a cytotoxic anticancer agent, or for the treatment of patients with asthma. However, the potential toxicity of Tub-A on oocyte maturation and asymmetric division is still unclear. Therefore, the present study was designed to examine the effect and potential regulatory role of Tub-A on the meiotic maturation of oocytes. We observed that Tub-A treatment induced an increased level of the acetylation of α-tubulin, and a failure of spindle migration and actin cap formation. Based on the spindle structure, most Tub-A treated oocytes were arrested in an MI-like or a GVBD-like stage and exhibited decondensed chromosomes in a dose dependent manner. Moreover, Tub-A treatment decreased the protein expression of mTOR, a factor responsible for spindle formation, and the expression of mDia1, an inhibitor of actin assembly, in an HDAC6 expression-dependent manner. Importantly, following Tub-A supplementation, most oocytes failed to extrude the first polar body, which indicates that these defects are closely linked to abnormal oocyte maturation. Taken together, our data demonstrates that HDAC6 is one of the essential factors for oocyte maturation and asymmetric division via the HDAC6/mTOR or mDia1 pathway in mice.
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Affiliation(s)
- Dongjie Zhou
- Department of Stem Cell and Regenerative Biotechnology, Humanized Pig Research Center (SRC), Konkuk University, Seoul, 143-701, Republic of Korea
| | - Yun-Jung Choi
- Department of Stem Cell and Regenerative Biotechnology, Humanized Pig Research Center (SRC), Konkuk University, Seoul, 143-701, Republic of Korea
| | - Jin-Hoi Kim
- Department of Stem Cell and Regenerative Biotechnology, Humanized Pig Research Center (SRC), Konkuk University, Seoul, 143-701, Republic of Korea.
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16
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Kif2a regulates spindle organization and cell cycle progression in meiotic oocytes. Sci Rep 2016; 6:38574. [PMID: 27991495 PMCID: PMC5171826 DOI: 10.1038/srep38574] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Accepted: 11/09/2016] [Indexed: 01/15/2023] Open
Abstract
Kif2a is a member of the Kinesin-13 microtubule depolymerases. Here, we report the expression, subcellular localization and functions of Kif2a during mouse oocyte meiotic maturation. Immunoblotting analysis showed that Kif2a was gradually increased form GV to the M I stages, and then decreased slightly at the M II stage. Confocal microscopy identified that Kif2a localized to the meiotic spindle, especially concentrated at the spindle poles and inner centromeres in metaphase and translocated to the midbody at telophase. Kif2a depletion by siRNA microinjection generated severely defective spindles and misaligned chromosomes, reduced microtubule depolymerization, which led to significant pro-M I/M Iarrest and failure of first polar body (PB1) extrusion. Kif2a-depleted oocytes were also defective in spindle pole localization of γ-tubulin and showed spindle assembly checkpoint (SAC) protein Bub3 at the kinetochores even after 10 hr extended culture. These results demonstrate that Kif2a may act as a microtubule depolymerase, regulating microtubule dynamics, spindle assembly and chromosome congression, and thus cell cycle progression during mouse oocyte meiotic maturation.
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17
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Cinar SL, Kartal D, Aksoy H, Cinar E, Aydin T, Öz L, İmamoğlu H, Ferahbas A, Borlu M. Long-term effect of systemic isotretinoin on female fertility. Cutan Ocul Toxicol 2016; 36:132-134. [DOI: 10.3109/15569527.2016.1172234] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Salih Levent Cinar
- Department of Dermatology and Venereology, Erciyes University Faculty of Medicine, Kayseri, Turkey,
| | - Demet Kartal
- Department of Dermatology and Venereology, Erciyes University Faculty of Medicine, Kayseri, Turkey,
| | - Hüseyin Aksoy
- Department of Obstetrics and Gynecology Department, Kayseri Military Hospital, Kayseri, Turkey,
| | - Elif Cinar
- Department of Obstetrics and Gynecology, Kayseri Acibadem Hospital, Kayseri, Turkey,
| | - Turgut Aydin
- Department of Obstetrics and Gynecology, Kayseri Acibadem Hospital, Kayseri, Turkey,
| | - Leyla Öz
- Department of Biochemistry, Kayseri Education and Research Hospital, Kayseri, Turkey, and
| | - Hakan İmamoğlu
- Department of Radiology, Erciyes University Faculty of Medicine, Kayseri, Turkey
| | - Ayten Ferahbas
- Department of Dermatology and Venereology, Erciyes University Faculty of Medicine, Kayseri, Turkey,
| | - Murat Borlu
- Department of Dermatology and Venereology, Erciyes University Faculty of Medicine, Kayseri, Turkey,
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18
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Li X, Wang YK, Song ZQ, Du ZQ, Yang CX. Dimethyl Sulfoxide Perturbs Cell Cycle Progression and Spindle Organization in Porcine Meiotic Oocytes. PLoS One 2016; 11:e0158074. [PMID: 27348312 PMCID: PMC4922549 DOI: 10.1371/journal.pone.0158074] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2016] [Accepted: 06/09/2016] [Indexed: 12/01/2022] Open
Abstract
Meiotic maturation of mammalian oocytes is a precisely orchestrated and complex process. Dimethyl sulfoxide (DMSO), a widely used solvent, drug, and cryoprotectant, is capable of disturbing asymmetric cytokinesis of oocyte meiosis in mice. However, in pigs, DMSO’s effect on oocyte meiosis still remains unknown. We aimed to evaluate if DMSO treatment will affect porcine oocyte meiosis and the underlying molecular changes as well. Interestingly, we did not observe the formation of the large first polar body and symmetric division for porcine oocytes treated with DMSO, contrary to findings reported in mice. 3% DMSO treatment could inhibit cumulus expansion, increase nuclear abnormality, disturb spindle organization, decrease reactive oxygen species level, and elevate mitochondrial membrane potential of porcine oocytes. There was no effect on germinal vesicle breakdown rate regardless of DMSO concentration. 3% DMSO treatment did not affect expression of genes involved in spindle organization (Bub1 and Mad2) and apoptosis (NF-κB, Pten, Bcl2, Caspase3 and Caspase9), however, it significantly decreased expression levels of pluripotency genes (Oct4, Sox2 and Lin28) in mature oocytes. Therefore, we demonstrated that disturbed cumulus expansion, chromosome alignment, spindle organization and pluripotency gene expression could be responsible for DMSO-induced porcine oocyte meiotic arrest and the lower capacity of subsequent embryo development. Our results provide new insights on DMSO’s effect on porcine oocyte meiosis and raise safety concerns over DMSO’s usage on female reproduction in both farm animals and humans.
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Affiliation(s)
- Xuan Li
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
| | - Yan-Kui Wang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
| | - Zhi-Qiang Song
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
| | - Zhi-Qiang Du
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
- * E-mail: (CXY); (ZQD)
| | - Cai-Xia Yang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
- * E-mail: (CXY); (ZQD)
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19
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He XQ, Song YQ, Liu R, Liu Y, Zhang F, Zhang Z, Shen YT, Xu L, Chen MH, Wang YL, Xu BH, Yang XJ, Wang HL. Axin-1 Regulates Meiotic Spindle Organization in Mouse Oocytes. PLoS One 2016; 11:e0157197. [PMID: 27284927 PMCID: PMC4902301 DOI: 10.1371/journal.pone.0157197] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Accepted: 05/25/2016] [Indexed: 11/23/2022] Open
Abstract
Axin-1, a negative regulator of Wnt signaling, is a versatile scaffold protein involved in centrosome separation and spindle assembly in mitosis, but its function in mammalian oogenesis remains unknown. Here we examined the localization and function of Axin-1 during meiotic maturation in mouse oocytes. Immunofluorescence analysis showed that Axin-1 was localized around the spindle. Knockdown of the Axin1 gene by microinjection of specific short interfering (si)RNA into the oocyte cytoplasm resulted in severely defective spindles, misaligned chromosomes, failure of first polar body (PB1) extrusion, and impaired pronuclear formation. However, supplementing the culture medium with the Wnt pathway activator LiCl improved spindle morphology and pronuclear formation. Downregulation of Axin1 gene expression also impaired the spindle pole localization of γ-tubulin/Nek9 and resulted in retention of the spindle assembly checkpoint protein BubR1 at kinetochores after 8.5 h of culture. Our results suggest that Axin-1 is critical for spindle organization and cell cycle progression during meiotic maturation in mouse oocytes.
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Affiliation(s)
- Xiao-Qin He
- Organ Transplantation Institute, Medical College, Xiamen University, Xiamen City, Fujian Province, P. R. China
- Department of Gynaecology and Obstetrics, Zhongshan Hospital, Xiamen University, Xiamen City, Fujian Province, P. R. China
- The Fifth Hospital of Wuhan, Wuhan City, Hubei Province, P. R. China
| | - Yue-Qiang Song
- New England Fertility Institute, Stamford, CT, United States of America
| | - Rui Liu
- Department of Gynaecology and Obstetrics, Zhongshan Hospital, Xiamen University, Xiamen City, Fujian Province, P. R. China
| | - Yu Liu
- Organ Transplantation Institute, Medical College, Xiamen University, Xiamen City, Fujian Province, P. R. China
| | - Fei Zhang
- Department of Gynaecology and Obstetrics, Zhongshan Hospital, Xiamen University, Xiamen City, Fujian Province, P. R. China
| | - Zhen Zhang
- Xiamen Institute for Food and Drug Quality Control, Xiamen City, Fujian Province, P. R. China
| | - Yu-Ting Shen
- Department of Obstetrics and Gynecology, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai City, P. R. China
| | - Lin Xu
- New England Fertility Institute, Stamford, CT, United States of America
| | - Ming-Huang Chen
- Department of Gynaecology and Obstetrics, Zhongshan Hospital, Xiamen University, Xiamen City, Fujian Province, P. R. China
| | - Ya-Long Wang
- Organ Transplantation Institute, Medical College, Xiamen University, Xiamen City, Fujian Province, P. R. China
| | - Bai-Hui Xu
- Organ Transplantation Institute, Medical College, Xiamen University, Xiamen City, Fujian Province, P. R. China
| | - Xiang-Jun Yang
- Department of Gynaecology and Obstetrics, Zhongshan Hospital, Xiamen University, Xiamen City, Fujian Province, P. R. China
- * E-mail: (HLW); (XJY)
| | - Hai-Long Wang
- Organ Transplantation Institute, Medical College, Xiamen University, Xiamen City, Fujian Province, P. R. China
- * E-mail: (HLW); (XJY)
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20
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Wang Y, Fu B, Sun X, Li D, Huang Q, Zhao W, Chen X. Differentially expressed microRNAs in bone marrow mesenchymal stem cell-derived microvesicles in young and older rats and their effect on tumor growth factor-β1-mediated epithelial-mesenchymal transition in HK2 cells. Stem Cell Res Ther 2015; 6:185. [PMID: 26415502 PMCID: PMC4587922 DOI: 10.1186/s13287-015-0179-x] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Revised: 08/20/2015] [Accepted: 09/07/2015] [Indexed: 11/10/2022] Open
Abstract
Introduction The prevalence of renal fibrosis is higher in older than in younger individuals. Through paracrine activity, bone marrow mesenchymal stem cell-derived microvesicles (BM-MSC-MVs) influence the process of renal fibrosis. Differences in microRNA (miRNA) expression of BM-MSC-MVs that correlate with the age of the subjects and the correlation between miRNA expression and the process of renal fibrosis have not been established. The present study aimed to analyze differences in miRNA expression of BM-MSC-MVs between young or older rats and its influence on tumor growth factor-beta 1 (TGF-β1)-mediated epithelial-mesenchymal transition (EMT) of HK2 cells to explore the causes of renal fibrosis in aged tissues. Methods miRCURY LNA Array (version 18.0) was used to identify differentially expressed miRNAs in BM-MSC-MVs of 3- and 24-month-old Fisher344 rats. Reverse transcription-polymerase chain reaction was used to verify miRNA levels in BM-MSC-MVs and in the serum of rats. A TGF-β1-mediated EMT model was used to study the effects of BM-MSC-MVs and differentially expressed miRNAs on EMT. Results BM-MSCs from older rats showed more severe aging phenotypes compared with those of young rats. In addition, the growth rate and cell migration of BM-MSCs derived from older rats were significantly reduced. In secreted BM-MSC-MVs, the expression of miR-344a, miR-133b-3p, miR-294, miR-423-3p, and miR-872-3p was significantly downregulated in older rats than in younger rats (P < 0.05), and the serum level of these miRNAs exhibited the same patterns. Intervention using BM-MSC-MVs resulted in the weakening of TGF-β1-mediated EMT in the aged rats. MiR-344a, miR-133b-3p, and miR-294 affected TGF-β1-mediated EMT in HK2 cells. Among these, miR-133b-3p and miR-294 significantly inhibited TGF-β1-mediated EMT in HK2 cells (P < 0.05). Conclusions In older rats, the inhibitory effect of BM-MSC-MVs on TGF-β1-mediated HK2 cell EMT was weaker than that observed in younger rats. In addition, miR-133b-3p and miR-294, which were downregulated in BM-MSC-MVs of older rats, remarkably inhibited TGF-β1-mediated EMT in HK2 cells, suggesting that these may play a role in the fibrosis of aging renal tissues. Electronic supplementary material The online version of this article (doi:10.1186/s13287-015-0179-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Yan Wang
- Department of Geriatrics, the First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, Jiangsu, 210029, China.
| | - Bo Fu
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, 28 Fuxing Road, Beijing, 100853, China.
| | - Xuefeng Sun
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, 28 Fuxing Road, Beijing, 100853, China.
| | - Diangeng Li
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, 28 Fuxing Road, Beijing, 100853, China.
| | - Qi Huang
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, 28 Fuxing Road, Beijing, 100853, China.
| | - Weihong Zhao
- Department of Geriatrics, the First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, Jiangsu, 210029, China.
| | - Xiangmei Chen
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, 28 Fuxing Road, Beijing, 100853, China.
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21
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Fouad H, Sabry D, Elsetohy K, Fathy N. Therapeutic efficacy of amniotic membrane stem cells and adipose tissue stem cells in rats with chemically induced ovarian failure. J Adv Res 2015; 7:233-41. [PMID: 26966564 PMCID: PMC4767794 DOI: 10.1016/j.jare.2015.05.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Revised: 05/22/2015] [Accepted: 05/22/2015] [Indexed: 12/22/2022] Open
Abstract
The present study was conducted to compare between the therapeutic efficacies of human amniotic membrane-derived stem cells (hAM-MSCs) vs. adipose tissue derived stem cells (AD-MSCs) in cyclophosphamide (CTX)-induced ovarian failure in rats. Forty-eight adult female rats were included in the study; 10 rats were used as control group. Thirty-eight rats were injected with CTX to induce ovarian failure and divided into four groups: ovarian failure (IOF) (IOF group), IOF + phosphate buffer saline (PBS group), IOF + hAM-MSCs group and IOF + AD-MSCs group. Serum levels of FSH and estradiol (E2) were assessed. Histopathological examination of the ovarian tissues was performed and quantitative gene expressions of Oct-4, Stra8 and integrin beta-1 genes were conducted by quantitative real time PCR. Results showed that IOF and IOF + PBS rat groups exhibited decreased ovarian follicles, increased interstitial fibrosis with significant decrease of serum E2, significant increase serum FSH level and significant down-regulation of Stra8 and integrin beta-1. In hAM-MSCs and AD-MSCs rat groups, there were increased follicles and corpora with evident the presence of oocytes, significant increase in serum E2, significant decrease in serum FSH levels (in hAM-MSCs treated group only) and significant up-regulation of the three studied genes with higher levels in hAM-MSCs treated rats group when compared to AD-MSCs treated rats group. In Conclusion, administration of either hAM-derived MSCs or AD-MSCs exerts a significant therapeutic efficacy in chemotherapy induced ovarian insult in rats. hAM-MSCs exert higher therapeutic efficacy as compared to AD-MSCs.
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Affiliation(s)
- Hanan Fouad
- Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Cairo University, P.O. Box 11562, Egypt
- Corresponding author. Tel.: +20 1001418750; fax: +20 223632297.
| | - Dina Sabry
- Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Cairo University, P.O. Box 11562, Egypt
| | - Khaled Elsetohy
- Obstetrics and Gynecology Department, Faculty of Medicine, Cairo University, Egypt
| | - Naglaa Fathy
- Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Cairo University, P.O. Box 11562, Egypt
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Zhou D, Shen X, Gu Y, Zhang N, Li T, Wu X, Lei L. Effects of dimethyl sulfoxide on asymmetric division and cytokinesis in mouse oocytes. BMC DEVELOPMENTAL BIOLOGY 2014; 14:28. [PMID: 24953160 PMCID: PMC4074394 DOI: 10.1186/1471-213x-14-28] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/27/2014] [Accepted: 06/19/2014] [Indexed: 11/10/2022]
Abstract
BACKGROUND Dimethyl sulfoxide (DMSO) is used extensively as a permeable cryoprotectant and is a common solvent utilized for several water-insoluble substances. DMSO has various biological and pharmacological activities; however, the effect of DMSO on mouse oocyte meiotic maturation remains unknown. RESULTS In DMSO-treated oocytes, we observed abnormal MII oocytes that contained large polar bodies, including 2-cell-like MII oocytes, during in vitro maturation. Oocyte polarization did not occur, due to the absence of actin cap formation and spindle migration. These features are among the primary causes of abnormal symmetric division; however, analysis of the mRNA expression levels of genes related to asymmetric division revealed no significant difference in the expression of these factors between the 3% DMSO-treated group and the control group. After each "blastomere" of the 2-cell-like MII stage oocytes was injected by one sperm head respectively, the oocytes still possessed the ability to extrude the second polar body from each "blastomere" and to begin cleavage. However, MII oocytes with large polar bodies developed to the blastocyst stage after intracytoplasmic sperm injection (ICSI). Furthermore, other permeable cryoprotectants, such as ethylene glycol and glycerol, also caused asymmetric division failure. CONCLUSION Permeable cryoprotectants, such as DMSO, ethylene glycol, and glycerol, affect asymmetric division. DMSO disrupts cytokinesis completion by inhibiting cortical reorganization and polarization. Oocytes that undergo symmetric division maintain the ability to begin cleavage after ICSI.
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Affiliation(s)
| | | | | | | | | | | | - Lei Lei
- Department of Histology and Embryology, Harbin Medical University, Harbin, China.
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Zhuang XJ, Shi YQ, Xu B, Chen L, Tang WH, Huang J, Lian Y, Liu P, Qiao J. SLX2 interacting with BLOS2 is differentially expressed during mouse oocyte meiotic maturation. Cell Cycle 2014; 13:2231-7. [PMID: 24870619 DOI: 10.4161/cc.29265] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Gametogenesis is a complex biological process of producing cells for sexual reproduction. Xlr super family members containing a conserved COR1 domain play essential roles in gametogenesis. In the present study, we identified that Slx2, a novel member of Xlr super family, is specifically expressed in the meiotic oocytes, which is demonstrated by western blotting and immunohistochemistry studies. In the first meiotic prophase, SLX2 is unevenly distributed in the nuclei of oocytes, during which phase SLX2 is partly co-localized with SYCP3 in synaptonemal complex and γH2AX in the nucleus of oocytes. Interestingly, the localization of SLX2 was found to be switched into the cytoplasm of oocytes after prometaphase I during oocyte maturation. Furthermore, yeast two-hybrid and coimmunoprecipitation studies demonstrated that SLX2 interacts with BLOS2, which is a novel centrosome-associated protein, and co-localized with γ-Tubulin, which is a protein marker of chromosome segregation in meiosis. These results indicated that SLX2 might get involved in chromosomes segregation during meiosis by interaction with BLOS2. In conclusion, SLX2 might be a novel gametogenesis-related protein that could play multiple roles in regulation of meiotic processes including synaptonemal complex assembly and chromosome segregation.
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Affiliation(s)
- Xin-Jie Zhuang
- Center for Reproductive Medicine; Department of Obstetrics and Gynecology; Key Laboratory of Assisted Reproduction; Ministry of Education; Peking University Third Hospital; Beijing, PR China
| | - Yu-Qiang Shi
- College of Bio-Engineering; Weifang University; Weifang, PR China
| | - Bo Xu
- Center for Reproductive Medicine; Anhui Provincial Hospital Affiliated to Anhui Medical University; Hefei, PR China
| | - Lei Chen
- Reproductive Medical Centre; First Affiliated Hospital of Zhengzhou University; Zhengzhou, PR China
| | - Wen-Hao Tang
- Department of Urology; the Third Hospital of Peking University; Beijing, PR China
| | - Jin Huang
- Center for Reproductive Medicine; Department of Obstetrics and Gynecology; Key Laboratory of Assisted Reproduction; Ministry of Education; Peking University Third Hospital; Beijing, PR China
| | - Ying Lian
- Center for Reproductive Medicine; Department of Obstetrics and Gynecology; Key Laboratory of Assisted Reproduction; Ministry of Education; Peking University Third Hospital; Beijing, PR China
| | - Ping Liu
- Center for Reproductive Medicine; Department of Obstetrics and Gynecology; Key Laboratory of Assisted Reproduction; Ministry of Education; Peking University Third Hospital; Beijing, PR China
| | - Jie Qiao
- Center for Reproductive Medicine; Department of Obstetrics and Gynecology; Key Laboratory of Assisted Reproduction; Ministry of Education; Peking University Third Hospital; Beijing, PR China
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Abstract
SummaryFor decades, scientists have considered that female mammals are born with a lifetime reserve of oocytes in the ovary, irrevocably fated to decline after birth. However, controversy in the matter of the possible presence of oocytes and granulosa cells that originate from stem cells in the adult mammalian ovaries has been expanded. The restricted supply of oocytes in adult female mammals has been disputed in recent years by supporters of neo-oogenesis, who claim that germline stem cells (GSCs) exist in the ovarian surface epithelium (OSE) or the bone marrow (BM). Differentiation of ovarian stem cells (OSCs) into oocytes, fibroblast-like cells, granulosa phenotype, neural and mesenchymal type cells and generation of germ cells from OSCs under the contribution of an OSC niche that consists of immune system-related cells and hormonal signalling has been claimed. Although these arguments have met with intense suspicion, their confirmation would necessitate the revision of the current classic knowledge of female reproductive biology.
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Bahmanpour S, Talaei Khozani T, Zarei fard N, Jaberipour M, Hosseini A, Esmaeilpour T. A comparison of the multiple oocyte maturation gene expression patterns between the newborn and adult mouse ovary. IRANIAN JOURNAL OF REPRODUCTIVE MEDICINE 2013; 11:815-22. [PMID: 24639702 PMCID: PMC3941340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/21/2012] [Revised: 04/16/2013] [Accepted: 06/12/2013] [Indexed: 10/25/2022]
Abstract
BACKGROUND The interaction between follicular cells and oocyte leads to a change in gene expression involved in oocyte maturation processes. OBJECTIVE The purpose of this study was to quantify the expression of more common genes involved in follicular growth and oocyte developmental competence. MATERIALS AND METHODS In this experimental study, the expression of genes was evaluated with qRT-PCR assay in female BALB/c mice pups at 3-day of pre-pubertal and 8 week old virgin adult ovaries. The tissue was prepared by H&E staining for normal morphological appearance. The data were calculated with the 2-∆Ct formula and assessed using non-parametric two-tailed Mann-Whitney test. The p<0.05 was considered as significant. RESULTS The data showed a significant increase in the level of Stra8 and GDF9 in adult compared with newborn mice ovaries (p=0.049). In contrast, a significant decrease in the level of Mvh, REC8, SCP1, SCP3, and ZP2 was observed in adult mice ovaries compared to those in the newborn mice ovaries (all p=0.049 except SCP1: p=0.046). There was no significant difference in the level of OCT4 and Cx37 expression between adult and newborn mice ovaries. CONCLUSION The modifications in gene expression patterns coordinate the follicular developmental processes. Furthermore, the findings showed higher expression level of premeiotic gene (Stra8) and lower level of meiotic entry markers (SCP1, SCP3, and REC8) in juvenile than newborn mouse ovaries. This article extracted from Ph.D. thesis. (Nehleh Zarei fard).
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Affiliation(s)
- Soghra Bahmanpour
- Laboratory for Stem Cell Research, Department of Anatomy, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Tahereh Talaei Khozani
- Laboratory for Stem Cell Research, Department of Anatomy, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Nehleh Zarei fard
- Laboratory for Stem Cell Research, Department of Anatomy, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Mansoureh Jaberipour
- Institute Cancer Research, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Ahmah Hosseini
- Institute Cancer Research, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Tahereh Esmaeilpour
- Laboratory for Stem Cell Research, Department of Anatomy, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
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26
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Isolation, characterization and propagation of mitotically active germ cells from adult mouse and human ovaries. Nat Protoc 2013; 8:966-88. [PMID: 23598447 DOI: 10.1038/nprot.2013.047] [Citation(s) in RCA: 109] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Accruing evidence indicates that production of new oocytes (oogenesis) and their enclosure by somatic cells (folliculogenesis) are processes not limited to the perinatal period in mammals. Endpoints ranging from oocyte counts to genetic lineage tracing and transplantation experiments support a paradigm shift in reproductive biology involving active renewal of oocyte-containing follicles during postnatal life. The recent purification of mitotically active oocyte progenitor cells, termed female germline stem cells (fGSCs) or oogonial stem cells (OSCs), from mouse and human ovaries opens up new avenues for research into the biology and clinical utility of these cells. Here we detail methods for the isolation of mouse and human OSCs from adult ovarian tissue, cultivation of the cells after purification, and characterization of the cells before and after ex vivo expansion. The latter methods include analysis of germ cell-specific markers and in vitro oogenesis, as well as the use of intraovarian transplantation to test the oocyte-forming potential of OSCs in vivo.
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27
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Nehra D, Le HD, Fallon EM, Carlson SJ, Woods D, White YA, Pan AH, Guo L, Rodig SJ, Tilly JL, Rueda BR, Puder M. Prolonging the female reproductive lifespan and improving egg quality with dietary omega-3 fatty acids. Aging Cell 2012; 11:1046-54. [PMID: 22978268 DOI: 10.1111/acel.12006] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/29/2012] [Indexed: 01/27/2023] Open
Abstract
Women approaching advanced maternal age have extremely poor outcomes with both natural and assisted fertility. Moreover, the incidence of chromosomal abnormalities and birth defects increases with age. As of yet, there is no effective and practical strategy for delaying ovarian aging or improving oocyte quality. We demonstrate that the lifelong consumption of a diet rich in omega-3 fatty acids prolongs murine reproductive function into advanced maternal age, while a diet rich in omega-6 fatty acids is associated with very poor reproductive success at advanced maternal age. Furthermore, even short-term dietary treatment with a diet rich in omega-3 fatty acids initiated at the time of the normal age-related rapid decline in murine reproductive function is associated with improved oocyte quality, while short-term dietary treatment with omega-6 fatty acids results in very poor oocyte quality. Thus, omega-3 fatty acids may provide an effective and practical avenue for delaying ovarian aging and improving oocyte quality at advanced maternal age.
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Affiliation(s)
| | | | | | | | | | | | - Amy H. Pan
- Department of Surgery and the Vascular Biology Program; Children's Hospital Boston; Boston; MA; 02115; USA
| | - Lankai Guo
- Vincent Center for Reproductive Biology; Department of Obstetrics and Gynecology; Massachusetts General Hospital and Boston; Boston; MA; 02114; USA
| | - Scott J. Rodig
- Department of Pathology; Brigham and Women's Hospital and Harvard Medical School; Boston; MA; 02115; USA
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28
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Yang SW, Gao C, Chen L, Song YL, Zhu JL, Qi ST, Jiang ZZ, Wang ZW, Lin F, Huang H, Xing FQ, Sun QY. Nek9 regulates spindle organization and cell cycle progression during mouse oocyte meiosis and its location in early embryo mitosis. Cell Cycle 2012; 11:4366-77. [PMID: 23159858 DOI: 10.4161/cc.22690] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Nek9 (also known as Nercc1), a member of the NIMA (never in mitosis A) family of protein kinases, regulates spindle formation, chromosome alignment and segregation in mitosis. Here, we showed that Nek9 protein was expressed from germinal vesicle (GV) to metaphase II (MII) stages in mouse oocytes with no detectable changes. Confocal microscopy identified that Nek9 was localized to the spindle poles at the metaphase stages and associated with the midbody at anaphase or telophase stage in both meiotic oocytes and the first mitotic embyros. Depletion of Nek9 by specific morpholino injection resulted in severely defective spindles and misaligned chromosomes with significant pro-MI/MI arrest and failure of first polar body (PB1) extrusion. Knockdown of Nek9 also impaired the spindle-pole localization of γ-tubulin and resulted in retention of the spindle assembly checkpoint protein Bub3 at the kinetochores even after 10 h of culture. Live-cell imaging analysis also confirmed that knockdown of Nek9 resulted in oocyte arrest at the pro-MI/MI stage with abnormal spindles, misaligned chromosomes and failed polar body emission. Taken together, our results suggest that Nek9 may act as a MTOC-associated protein regulating microtubule nucleation, spindle organization and, thus, cell cycle progression during mouse oocyte meiotic maturation, fertilization and early embryo cleavage.
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Affiliation(s)
- Shang-Wu Yang
- State Key Laboratory of Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
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29
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Ozer H, Boztosun A, Açmaz G, Atilgan R, Akkar OB, Kosar MI. The efficacy of bevacizumab, sorafenib, and retinoic acid on rat endometriosis model. Reprod Sci 2012; 20:26-32. [PMID: 22895024 DOI: 10.1177/1933719112452941] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Blood vessels are necessary for development and maintenance of the endometriosis and blood flow supplies oxygen and essential nutrient to the disease. Local angiogenesis is regulated by vascular endothelial growth factor (VEGF) and inhibitors of VEGF may be a novel therapeutic approach. We inducted endometriosis in 43 rats and they were randomly allocated into 4 groups. The rats in group I (control n = 11) were given no medication. The rats in group II (n = 11) were given bevacizumab. The rats in group III (n = 11) were given Sorafenib, and the rats in group IV (n = 10) were given retinoic acid (RA). Then groups were compared for microvessel density, VEGF, soluble tyrosine-kinase receptor, ovarian reserve, and treatment effectivity. All these medications were effective on endometriosis and we detected that volume of endometriotic implants were significantly decreased. Ovarian reserve was not affected from the medication, in addition RA have induced reproductive capacity.
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Affiliation(s)
- Hatice Ozer
- Department of Pathology, Cumhuriyet University School of Medicine, Sivas, Turkey
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30
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Conboy IM, Rando TA. Heterochronic parabiosis for the study of the effects of aging on stem cells and their niches. Cell Cycle 2012; 11:2260-7. [PMID: 22617385 DOI: 10.4161/cc.20437] [Citation(s) in RCA: 165] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Aging is unmistakable and undeniable in mammals. Interestingly, mice develop cataracts, muscle atrophy, osteoporosis, obesity, diabetes and cognitive deficits after just 2-3 postnatal years, while it takes seven or more decades for the same age-specific phenotypes to develop in humans. Thus, chronological age corresponds differently with biological age in metazoan species and although many theories exist, we do not understand what controls the rate of mammalian aging. One interesting idea is that species-specific rate of aging represents a ratio of tissue attrition to tissue regeneration. Furthermore, current findings suggest that the age-imposed biochemical changes in the niches of tissue stem cells inhibit performance of this regenerative pool, which leads to the decline of tissue maintenance and repair. If true, slowing down stem cell and niche aging, thereby promoting tissue regeneration, could slow down the process of tissue and organismal aging. In this regard, recent studies of heterochronic parabiosis provide important clues as to the mechanisms of stem cell aging and suggest novel strategies for enhancing tissue repair in the old. Here we review current literature on the relationship between the vigor of tissue stem cells and the process of aging, with an emphasis on the rejuvenation of old tissues by the extrinsic modifications of stem cell niches.
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Affiliation(s)
- Irina M Conboy
- Department of Bioengineering, University of California, Berkeley, Berkeley, CA, USA.
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31
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Stem cell interaction with somatic niche may hold the key to fertility restoration in cancer patients. Obstet Gynecol Int 2012; 2012:921082. [PMID: 22548074 PMCID: PMC3324916 DOI: 10.1155/2012/921082] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2011] [Revised: 12/08/2011] [Accepted: 12/19/2011] [Indexed: 01/17/2023] Open
Abstract
The spontaneous return of fertility after bone marrow transplantation or heterotopic grafting of cryopreserved ovarian cortical tissue has surprised many, and a possible link with stem cells has been proposed. We have reviewed the available literature on ovarian stem cells in adult mammalian ovaries and presented a model that proposes that the ovary harbors two distinct populations of stem cells, namely, pluripotent, quiescent, very small embryonic-like stem cells (VSELs), and slightly larger “progenitor” ovarian germ stem cells (OGSCs). Besides compromising the somatic niche, oncotherapy destroys OGSCs since, like tumor cells, they are actively dividing; however VSELs persist since they are relatively quiescent. BMT or transplanted ovarian cortical tissue may help rejuvenate the ovarian niche, which possibly supports differentiation of persisting VSELs resulting in neo-oogenesis and follicular development responsible for successful pregnancies. Postnatal oogenesis in mammalian ovary from VSELs may be exploited for fertility restoration in cancer survivors including those who were earlier deprived of gametes and/or gonadal tissue cryopreservation options.
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32
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Oocyte formation by mitotically active germ cells purified from ovaries of reproductive-age women. Nat Med 2012; 18:413-21. [PMID: 22366948 PMCID: PMC3296965 DOI: 10.1038/nm.2669] [Citation(s) in RCA: 459] [Impact Index Per Article: 38.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2011] [Accepted: 01/11/2011] [Indexed: 01/15/2023]
Abstract
Germline stem cells that produce oocytes in vitro and fertilization-competent eggs in vivo have been identified in and isolated from adult mouse ovaries. Here we describe and validate a FACS-based protocol that can be used with adult mouse ovaries and human ovarian cortical tissue to purify rare mitotically-active cells that exhibit a gene expression profile consistent with primitive germ cells. Once established in vitro, these cells can be expanded for months and spontaneously generate 35–50 µm oocytes, as determined by morphology, gene expression and attainment of haploid (1n) status. Injection of the human germline cells, engineered to stably express GFP, into human ovarian cortical biopsies leads to formation of follicles containing GFP-positive oocytes 1–2 weeks after xenotransplantation into immunodeficient female mice. Thus, ovaries of reproductive-age women, like adult mice, possess rare mitotically-active germ cells that can be propagated in vitro as well as generate oocytes in vitro and in vivo.
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Lecanu L. Sex, the Underestimated Potential Determining Factor in Brain Tissue Repair Strategy. Stem Cells Dev 2011; 20:2031-5. [DOI: 10.1089/scd.2011.0188] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Affiliation(s)
- Laurent Lecanu
- The Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
- Department of Medicine, McGill University Health Centre, Montreal, Quebec, Canada
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34
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Oktay K, Goswami S, Darzynkiewicz Z. Manipulating ovarian aging: a new frontier in fertility preservation. Aging (Albany NY) 2011; 3:19-21. [PMID: 21266743 PMCID: PMC3047134 DOI: 10.18632/aging.100269] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- Kutluk Oktay
- New York Medical College, Valhalla, NY 10595, USA.
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