151
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Eichenlaub-Ritter U. Weibliche Keimzellentwicklung. GYNAKOLOGISCHE ENDOKRINOLOGIE 2018. [DOI: 10.1007/s10304-018-0210-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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152
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Bai L, Chang HM, Zhu YM, Leung PCK. Bone morphogenetic protein 2 increases lysyl oxidase activity via up-regulation of snail in human granulosa-lutein cells. Cell Signal 2018; 53:201-211. [PMID: 30321593 DOI: 10.1016/j.cellsig.2018.10.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 10/10/2018] [Accepted: 10/11/2018] [Indexed: 11/26/2022]
Abstract
Lysyl oxidase (LOX) is a copper-dependent enzyme that maintains and stabilizes the extracellular matrix (ECM) by catalyzing the cross-linking of elastin and collagen. ECM within the ovarian follicle plays a crucial role in regulating follicular development and oocyte maturation. Bone morphogenetic protein 2 (BMP2) belongs to the BMP subfamily that has been shown to be involved in the process of ovarian folliculogenesis and luteal formation. To date, whether BMP2 regulates the activity of LOX during human follicular development remains to be elucidated. The aim of this study was to investigate the effect of BMP2 on the regulation of LOX expression and activity in human granulosa-lutein cells (hGL) and the underlying mechanisms. Using both primary and immortalized (SVOG cells) hGL cells, we demonstrated that BMP2 up-regulated the expression and activity of LOX and hence decreased the soluble collagens in cultured medium in hGL cells. Additionally, the mRNA and protein levels of two transcriptional factors, SNAIL and SLUG, were increased following cell exposure to BMP2. Knockdown of SNAIL, but not SLUG partially reversed BMP2-induced increases in LOX expression and activity. The BMP2-induced up-regulation of SNAIL expression was abolished by the pre-treatment with two BMP type I receptor inhibitors, dorsomorphin and DMH-1, but not SB431542. Moreover, knockdown of SMAD4 completely abolished BMP2-induced up-regulation of SNAIL expression and the subsequent increases in LOX expression and activity. Our results suggest that BMP2 increases LOX expression and activity via the up-regulation of SNAIL in hGL cells. These findings may provide insights into the functional role of BMP2 in the regulation of ECM formation during folliculogenesis.
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Affiliation(s)
- Long Bai
- Department of Reproductive Endocrinology, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China; Department of Obstetrics and Gynaecology, University of British Columbia, and BC Children's Hospital Research Institute, Vancouver, British Columbia, Canada
| | - Hsun-Ming Chang
- Department of Obstetrics and Gynaecology, University of British Columbia, and BC Children's Hospital Research Institute, Vancouver, British Columbia, Canada
| | - Yi-Min Zhu
- Department of Reproductive Endocrinology, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Peter C K Leung
- Department of Reproductive Endocrinology, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China; Department of Obstetrics and Gynaecology, University of British Columbia, and BC Children's Hospital Research Institute, Vancouver, British Columbia, Canada.
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153
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Ivell R, Anand-Ivell R. Insulin-like peptide 3 (INSL3) is a major regulator of female reproductive physiology. Hum Reprod Update 2018; 24:639-651. [DOI: 10.1093/humupd/dmy029] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Accepted: 08/31/2018] [Indexed: 12/16/2022] Open
Affiliation(s)
- Richard Ivell
- School of Biosciences, University of Nottingham, Sutton Bonington, UK
- School of Veterinary Medicine and Science, University of Nottingham, Sutton Bonington, UK
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154
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Del Collado M, Andrade GM, Meirelles FV, da Silveira JC, Perecin F. Contributions from the ovarian follicular environment to oocyte function. Anim Reprod 2018; 15:261-270. [PMID: 34178149 PMCID: PMC8202235 DOI: 10.21451/1984-3143-ar2018-0082] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The magnitude of oocyte's role for embryo development is categorical. This unique cell contains the machineries and cellular components necessary to remodel male and female chromatin, to sustain early development and to, ultimately, generate a complete and complex individual. However, to gain these competences before fertilization, the oocyte undergoes several morphological, cellular and molecular changes during its lifetime enclosed in the ovarian follicle. This review will briefly revisit how the oocyte orchestrate the follicular cells, and how molecules transit to the oocyte from the innermost (cumulus) and outermost (antrum and granulosa cells) layers surrounding the follicle-enclosed oocyte. Finally, we will discuss the interferences of in vitro culture conditions in the communication of the oocyte with its surrounding cells and the potential strategies to modulate these communication systems to increase oocyte competence.
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Affiliation(s)
- Maite Del Collado
- Faculty of Animal Sciences and Food Engineering, Department of Veterinary Medicine, University of São Paulo, Pirassununga, SP, Brazil
| | - Gabriella Mamede Andrade
- Faculty of Animal Sciences and Food Engineering, Department of Veterinary Medicine, University of São Paulo, Pirassununga, SP, Brazil
| | - Flávio Vieira Meirelles
- Faculty of Animal Sciences and Food Engineering, Department of Veterinary Medicine, University of São Paulo, Pirassununga, SP, Brazil
| | - Juliano Coelho da Silveira
- Faculty of Animal Sciences and Food Engineering, Department of Veterinary Medicine, University of São Paulo, Pirassununga, SP, Brazil
| | - Felipe Perecin
- Faculty of Animal Sciences and Food Engineering, Department of Veterinary Medicine, University of São Paulo, Pirassununga, SP, Brazil
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155
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Zhang XY, Chang HM, Taylor EL, Liu RZ, Leung PCK. BMP6 Downregulates GDNF Expression Through SMAD1/5 and ERK1/2 Signaling Pathways in Human Granulosa-Lutein Cells. Endocrinology 2018; 159:2926-2938. [PMID: 29750278 DOI: 10.1210/en.2018-00189] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Accepted: 05/01/2018] [Indexed: 12/18/2022]
Abstract
Bone morphogenetic protein (BMP) 6 is a critical regulator of follicular development that is expressed in mammalian oocytes and granulosa cells. Glial cell line‒derived neurotrophic factor (GDNF) is an intraovarian neurotrophic factor that plays an essential role in regulating mammalian oocyte maturation. The aim of this study was to investigate the effect of BMP6 on the regulation of GDNF expression and the potential underlying mechanisms. We used an established immortalized human granulosa cell line (SVOG cells) and primary human granulosa-lutein (hGL) cells as in vitro cell models. Our results showed that BMP6 significantly downregulated the expression of GDNF in both SVOG and primary hGL cells. With dual inhibition approaches (kinase receptor inhibitor and small interfering RNA knockdown), our results showed that both activin receptor kinase-like (ALK) 2 and ALK3 are involved in BMP6-induced downregulation of GDNF. In addition, BMP6 induced the phosphorylation of Sma- and Mad-related protein (SMAD)1/5/8 and ERK1/2 but not AKT or p38. Among three downstream mediators, both SMAD1 and SMAD5 are involved in BMP6-induced downregulation of GDNF. Moreover, concomitant knockdown of endogenous SMAD4 and inhibition of ERK1/2 activity completely reversed BMP6-induced downregulation of GDNF, indicating that both SMAD and ERK1/2 signaling pathways are required for the regulatory effect of BMP6 on GDNF expression. Our findings suggest an additional role for an intrafollicular growth factor in regulating follicular function through paracrine interactions in human granulosa cells.
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Affiliation(s)
- Xin-Yue Zhang
- Center for Reproductive Medicine, The First Hospital of Jilin University, Changchun, Jilin, China
- Department of Obstetrics and Gynaecology, BC Children's Hospital Research Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - Hsun-Ming Chang
- Department of Obstetrics and Gynaecology, BC Children's Hospital Research Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - Elizabeth L Taylor
- Department of Obstetrics and Gynaecology, BC Children's Hospital Research Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - Rui-Zhi Liu
- Center for Reproductive Medicine, The First Hospital of Jilin University, Changchun, Jilin, China
- Department of Obstetrics and Gynaecology, BC Children's Hospital Research Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - Peter C K Leung
- Department of Obstetrics and Gynaecology, BC Children's Hospital Research Institute, University of British Columbia, Vancouver, British Columbia, Canada
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156
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GDF-9 and BMP-15 direct the follicle symphony. J Assist Reprod Genet 2018; 35:1741-1750. [PMID: 30039232 DOI: 10.1007/s10815-018-1268-4] [Citation(s) in RCA: 101] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Accepted: 07/13/2018] [Indexed: 01/12/2023] Open
Abstract
Understanding the physiology underlying the complex dialog between the oocyte and its surrounding somatic cells within the ovarian follicle has been crucial in defining optimal procedures for the development of clinical approaches in ART for women suffering from infertility and ovarian dysfunction. Recent studies have implicated oocyte-secreted factors like growth differentiation factor 9 (GDF-9) and bone morphogenetic protein 15 (BMP-15), members of the transforming growth factor-beta (TGFβ) superfamily, as potent regulators of folliculogenesis and ovulation. These two factors act as biologically active heterodimers or as homodimers in a synergistic cooperation. Through autocrine and paracrine mechanisms, the GDF-9 and BMP-15 system has been shown to regulate growth, differentiation, and function of granulosa and thecal cells during follicular development playing a vital role in oocyte development, ovulation, fertilization, and embryonic competence. The present mini-review provides an overview of recent findings relating GDF-9 and BMP-15 as fundamental factors implicated in the regulation of ovarian function and discusses their potential role as markers of oocyte quality in women.
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157
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Kahraman S, Çetinkaya CP, Çetinkaya M, Tüfekçi MA, Ekmekçi CG, Montag M. Is there a correlation between follicle size and gene expression in cumulus cells and is gene expression an indicator of embryo development? Reprod Biol Endocrinol 2018; 16:69. [PMID: 30031399 PMCID: PMC6054838 DOI: 10.1186/s12958-018-0388-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 07/10/2018] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND In an article published in 2017, we discussed the results of the first part of our study into the morphokinetic development of embryos in relation to follicle diameter and homogeneity of follicular development. Our findings showed that embryos coming from small follicles in heterogeneous cycles had significantly higher rates of arrest or failure to reach blastocyst than embryos coming from large follicles in homogenous cycles. The aim of this further study was to investigate the relationship between follicular size and gene expression of cumulus cells (CCs) and evaluate whether gene expression could be an indicator of embryo development. METHODS This study was based on 2495 COCs from 184 patients. CC expressions of five genes (TNFAIP6, PTGS2, HAS2, PTX3 and GDF9) were studied by generalized linear mixed models (GLMMs) regarding follicular size. CC expressions were then separately analysed regarding patient-specific variables (age, BMI, AMH and follicular size) in relation to embryos reaching blastocyst (eRB) or top or good quality blastocysts (TQ + GQ) using GLMMs with logit link. RESULTS Follicular size significantly correlated with the potential of an oocyte to develop into a blastocyst: oocytes developing from large follicles were more than twice as likely to develop into an eRB than oocytes from small follicles (p < 0.001). Gene expression of HAS2 and GDF9 correlated with blastocyst quality when separately evaluated with follicular size and the patient specific variables of age, BMI and AMH. However, no such correlation was found in other gene expressions studied. CONCLUSIONS Our findings suggest that differences in the expression of genes studied could be related to follicular size rather than to embryo quality. Although gene expression of HAS2 and GDF9 correlated with blastocyst quality, the only variable correlating with eRB and TQ and GQ blastocysts for each of these five models was follicular size. TRIAL REGISTRATION This prospective cohort study was registered at clinicaltrials.gov (NCT02230449).
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Affiliation(s)
- Semra Kahraman
- Istanbul Memorial Hospital, Assisted Reproductive Technologies and Reproductive Genetics Centre, Piyale Pasa Bulvari 34385 Okmeydani Sisli, Istanbul, Turkey.
| | - Caroline Pirkevi Çetinkaya
- Istanbul Memorial Hospital, Assisted Reproductive Technologies and Reproductive Genetics Centre, Piyale Pasa Bulvari 34385 Okmeydani Sisli, Istanbul, Turkey
| | - Murat Çetinkaya
- Istanbul Memorial Hospital, Assisted Reproductive Technologies and Reproductive Genetics Centre, Piyale Pasa Bulvari 34385 Okmeydani Sisli, Istanbul, Turkey
| | - Mehmet Ali Tüfekçi
- Istanbul Memorial Hospital, Assisted Reproductive Technologies and Reproductive Genetics Centre, Piyale Pasa Bulvari 34385 Okmeydani Sisli, Istanbul, Turkey
| | - Cumhur Gökhan Ekmekçi
- Istanbul Memorial Hospital, Assisted Reproductive Technologies and Reproductive Genetics Centre, Piyale Pasa Bulvari 34385 Okmeydani Sisli, Istanbul, Turkey
| | - Markus Montag
- ilabcomm GmbH, Eisenachstr. 34, 53757, Sankt Augustin, Germany
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158
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Xu Y, Niu J, Xi G, Niu X, Wang Y, Guo M, Yangzong Q, Yao Y, Sizhu SL, Tian J. TGF-β1 resulting in differential microRNA expression in bovine granulosa cells. Gene 2018; 663:88-100. [DOI: 10.1016/j.gene.2018.04.036] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2017] [Revised: 04/10/2018] [Accepted: 04/13/2018] [Indexed: 01/21/2023]
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159
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Zhao HJ, Chang HM, Zhu H, Klausen C, Li Y, Leung PCK. Bone Morphogenetic Protein 2 Promotes Human Trophoblast Cell Invasion by Inducing Activin A Production. Endocrinology 2018; 159:2815-2825. [PMID: 29846546 DOI: 10.1210/en.2018-00301] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Accepted: 05/17/2018] [Indexed: 12/18/2022]
Abstract
Bone morphogenetic protein (BMP) 2 and activin A belong to the TGF-β superfamily and are highly expressed in human endometrium and placenta. Studies have demonstrated that activin A and BMP2 play essential roles in the process of early embryo implantation by promoting human trophoblast cell invasion. However, whether activin A production can be regulated by BMP2 in human trophoblast cells remains unknown. The aim of our study was to determine the effects of BMP2 on activin A production and its role in human trophoblast invasion. Primary human extravillous trophoblast (EVT) cells were used as study models. BMP2 treatment significantly increased inhibin βA (INHBA) mRNA levels and activin A production without altering inhibin α and inhibin βB levels. BMP2-induced EVT cell invasion was attenuated by knockdown of INHBA. The increased INHBA transcription and activin A production by BMP2 were blocked by the type I receptor activin receptor (ACVR)-like kinase 2 (ALK2) and activin receptor-like kinase 3 (ALK3) inhibitor dorsomorphin homolog 1 (DMH-1). BMP2-induced INHBA upregulation was also inhibited by knockdown of type I receptor ALK3 or combined knockdown of type II receptors for BMP2 (BMPR2) and ACVR2A. Whereas BMP2 initiated both canonical SMAD1/5/8 and noncanonical SMAD2/3 signaling, only knockdown of SMAD4, but not SMAD2 and SMAD3, abolished the effects of BMP2 on INHBA. Our results show that BMP2 increases human trophoblast invasion by upregulating INHBA and activin A production via ALK3-BMPR2/ACVR2A-SMAD1/5/8-SMAD4 signaling.
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Affiliation(s)
- Hong-Jin Zhao
- Shandong Provincial Hospital, Shandong University, Jinan, People's Republic of China
- Department of Obstetrics and Gynaecology, British Columbia Children's Hospital Research Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - Hsun-Ming Chang
- Department of Obstetrics and Gynaecology, British Columbia Children's Hospital Research Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - Hua Zhu
- Department of Obstetrics and Gynaecology, British Columbia Children's Hospital Research Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - Christian Klausen
- Department of Obstetrics and Gynaecology, British Columbia Children's Hospital Research Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - Yan Li
- Department of Obstetrics and Gynaecology, British Columbia Children's Hospital Research Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - Peter C K Leung
- Department of Obstetrics and Gynaecology, British Columbia Children's Hospital Research Institute, University of British Columbia, Vancouver, British Columbia, Canada
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160
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Cui L, Fang L, Mao X, Chang HM, Leung PCK, Ye Y. GDNF-Induced Downregulation of miR-145-5p Enhances Human Oocyte Maturation and Cumulus Cell Viability. J Clin Endocrinol Metab 2018; 103:2510-2521. [PMID: 29897461 DOI: 10.1210/jc.2017-02742] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Accepted: 04/17/2018] [Indexed: 12/30/2022]
Abstract
CONTEXT Although glial cell line-derived neurotrophic factor (GDNF) and microRNAs (miRNAs) have been shown to regulate mammalian oocyte maturation, little is known about their effects on human oocyte maturation and the underlying molecular mechanisms. OBJECTIVES To examine the effects of GDNF on both nuclear and cytoplasmic maturation in cultured immature human oocytes and to investigate the involvement of miRNAs in GDNF-induced oocyte maturation. DESIGN A total of 200 human immature oocytes were used to evaluate the effects of GDNF on oocyte maturation. The involvement of miRNAs in GDNF-induced oocyte maturation was identified by comparing the miRNA expression profiles of cumulus cells (CCs) either with or without GDNF stimulation. SETTING An in vitro fertilization center at the Women's Hospital, Zhejiang University School of Medicine. METHODS Agilent human miRNA (8*60K) arrays were used to examine the miRNA expression patterns of human CCs either with or without GDNF stimulation. miR-145-5p inhibitor and mimic transfections were performed to study downstream gene expression in human CCs. RESULTS During the in vitro maturation process, GDNF significantly increased the percentage of metaphase II-stage oocytes and downregulated the expression of miR-145-5p in cultured human CCs. Expression of miR-145-5p in CCs is negatively correlated with oocyte maturation. miR-145-5p mimic significantly decreased the expression of GDNF family receptor-α1, ret proto-oncogene, and epidermal growth factor receptor, whereas miR-145-5p inhibitor reversed these effects. GDNF treatment inhibited cell apoptosis in cultured CCs, and this suppressive effect was reversed by transfection with the miR-145-5p mimic. CONCLUSION Downregulation of miR-145-5p may contribute to GDNF-induced enhancement of oocyte maturation and of cell viability against cell apoptosis.
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Affiliation(s)
- Long Cui
- Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Li Fang
- Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Xiaodan Mao
- Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Hsun-Ming Chang
- Department of Obstetrics and Gynaecology, University of British Columbia and British Columbia Children's Hospital Research Institute, Vancouver, British Columbia, Canada
| | - Peter C K Leung
- Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Department of Obstetrics and Gynaecology, University of British Columbia and British Columbia Children's Hospital Research Institute, Vancouver, British Columbia, Canada
| | - Yinghui Ye
- Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
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161
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Lew R. Natural history of ovarian function including assessment of ovarian reserve and premature ovarian failure. Best Pract Res Clin Obstet Gynaecol 2018; 55:2-13. [PMID: 30420162 DOI: 10.1016/j.bpobgyn.2018.05.005] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Accepted: 05/04/2018] [Indexed: 12/12/2022]
Abstract
This chapter describes ovarian anatomy and embryology in humans. The formation of the ovarian reserve is discussed, and events of folliculogenesis are described, including description of developmental events in primordial, primary, secondary, antral and periovulatory follicles. Paracrine and autocrine factors play critical roles in oocyte maturation and follicular development, and research related to the hypothesised roles of individual factors is discussed. Gonadotrophin-dependent events relating to dominant follicle selection are discussed. The two-cell, two-gonadotrophin hypothesis of ovarian steroidogenesis is explained. The clinical role of AMH is outlined. Premature ovarian failure and known associated aetiological factors are described. In the conclusion, with an understanding of the principle events of ovarian folliculogenesis, the follicular wave theory is described, and it is explained how adaptation of ovarian stimulation regimens may achieve time-efficient fertility preservation treatment options for patients with cancer.
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Affiliation(s)
- Raelia Lew
- Department of Obstetrics and Gynaecology, Faculty of Medicine, University of Melbourne, Level 7 Royal Women's Hospital, 50 Flemmington Parade, Parkville, 3052, Australia; Melbourne IVF, 340 Victoria Parade, East Melbourne, 3002, Australia.
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162
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Hong L, Peng S, Li Y, Fang Y, Wang Q, Klausen C, Yin C, Wang S, Leung PCK, Yang X. miR-106a Increases Granulosa Cell Viability and Is Downregulated in Women With Diminished Ovarian Reserve. J Clin Endocrinol Metab 2018; 103:2157-2166. [PMID: 29590425 DOI: 10.1210/jc.2017-02344] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Accepted: 03/20/2018] [Indexed: 12/21/2022]
Abstract
CONTEXT Women with diminished ovarian reserve (DOR) have reduced fertility, cardiovascular events, and osteoporosis. Although differential microRNA (miRNA) expression has been described in several ovarian disorders, little is known about the role of miRNAs in the pathogenesis of DOR. OBJECTIVE Identify differentially expressed miRNAs in DOR and explore the role of miR-106a in human granulosa cell proliferation. DESIGN miRNA microarray (n = 3) and quantitative reverse transcription polymerase chain reaction (n = 30) were used to examine miRNA expression in serum and granulosa cells from normal-cycling and women with DOR. Primary human granulosa cells were treated alone or in combination with miR-106a mimic, miR-106a inhibitor, apoptosis signal-regulating kinase 1 (ASK1) small interfering RNA (siRNA), or p38 mitogen-activated protein kinase (MAPK) inhibitor (SB203580) before assessment of cell viability and apoptosis. Western blot was used to measure ASK1 protein and phosphorylation/activation of p38 MAPK. Binding of miR-106a to ASK1 mRNA was examined by 3' untranslated region (3'UTR) luciferase analysis. RESULTS Fifteen miRNAs were differentially expressed (n = 30), and miR-106a was downregulated in serum and granulosa cells of women with DOR. miR-106a mimic increased cell viability and attenuated apoptosis, whereas the converse occurred following treatment with miR-106a inhibitor. miR-106a suppressed ASK1 expression by directly targeting its 3'UTR. miR-106a inhibitor increased p38 MAPK phosphorylation/activation, and this effect was abolished by treatment with ASK1 siRNA. Whereas knockdown of ASK1 abolished the effects of miR-106a inhibitor on cell viability/apoptosis, pretreatment with SB203580 did not significantly alter the effects of miR-106a inhibitor. CONCLUSIONS Downregulation of miR-106a may contribute to the pathogenesis of DOR by reducing granulosa cell viability and promoting apoptosis via enhanced ASK1 signaling.
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Affiliation(s)
- Liming Hong
- Department of Human Reproductive Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China
| | - Sha Peng
- Department of Human Reproductive Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China
| | - Ying Li
- Department of Human Reproductive Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China
| | - Ying Fang
- Department of Human Reproductive Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China
| | - Qin Wang
- Department of Human Reproductive Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China
| | - Christian Klausen
- Department of Obstetrics and Gynaecology, BC Children's Hospital Research Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - Chenghong Yin
- Department of Human Reproductive Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China
| | - Shuyu Wang
- Department of Human Reproductive Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China
| | - Peter C K Leung
- Department of Obstetrics and Gynaecology, BC Children's Hospital Research Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - Xiaokui Yang
- Department of Human Reproductive Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China
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163
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Castillo J, Jodar M, Oliva R. The contribution of human sperm proteins to the development and epigenome of the preimplantation embryo. Hum Reprod Update 2018; 24:535-555. [DOI: 10.1093/humupd/dmy017] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Accepted: 04/25/2018] [Indexed: 02/07/2023] Open
Affiliation(s)
- Judit Castillo
- Molecular Biology of Reproduction and Development Group, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Fundació Clínic per a la Recerca Biomèdica, Faculty of Medicine, University of Barcelona, Casanova, Barcelona, Spain
| | - Meritxell Jodar
- Molecular Biology of Reproduction and Development Group, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Fundació Clínic per a la Recerca Biomèdica, Faculty of Medicine, University of Barcelona, Casanova, Barcelona, Spain
| | - Rafael Oliva
- Molecular Biology of Reproduction and Development Group, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Fundació Clínic per a la Recerca Biomèdica, Faculty of Medicine, University of Barcelona, Casanova, Barcelona, Spain
- Biochemistry and Molecular Genetics Service, Hospital Clínic, Villarroel, Barcelona, Spain
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164
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Yao Y, Reheman A, Xu Y, Li Q. miR-125b Contributes to Ovarian Granulosa Cell Apoptosis Through Targeting BMPR1B, a Major Gene for Sheep Prolificacy. Reprod Sci 2018; 26:295-305. [DOI: 10.1177/1933719118770544] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Yilong Yao
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, People’s Republic of China
| | - Anwaier Reheman
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, People’s Republic of China
| | - Yefei Xu
- Department of Animal Science, College of Tibet Agricultural and Animal Husbandry, Nyingzhi, People’s Republic of China
| | - Qifa Li
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, People’s Republic of China
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165
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Li H, Chang HM, Shi Z, Leung PCK. SNAIL Mediates TGF-β1-Induced Downregulation of Pentraxin 3 Expression in Human Granulosa Cells. Endocrinology 2018; 159:1644-1657. [PMID: 29462303 PMCID: PMC5939639 DOI: 10.1210/en.2017-03127] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Accepted: 02/10/2018] [Indexed: 12/15/2022]
Abstract
Transforming growth factor-β (TGF-β) 1 plays a critical role in regulating follicular development, and its dysregulation has been shown to be involved in the pathogenesis of ovulation dysfunction. SNAIL is a well-known transcriptional repressor that mediates TGF-β1-induced cellular functions. Pentraxin 3 (PTX3) is a key enzyme for the assembly and stabilization of the cumulus oophorus extracellular matrix, which is essential for cumulus expansion during the periovulatory stage. The purpose of the present study was to investigate the roles of TGF-β1 and SNAIL in the regulation of PTX3 expression and to examine the underlying mechanism. An established immortalized human granulosa cell (GC) line (SVOG), a GC tumor cell line (KGN), and primary human granulosa-lutein cells were used as study models. We demonstrated that TGF-β1 treatment substantially decreased the messenger RNA and protein levels of PTX3. This suppressive effect was abolished by cotreatment with the soluble TGF-β type II receptor (TβRII) or the ALK4/5/7 inhibitor SB431542. Knockdown of ALK5, SMAD2/3, or SMAD4 reversed the effects of TGF-β1-induced SNAIL upregulation and PTX3 suppression. These results indicate that TGF-β1 upregulates SNAIL and downregulates PTX3 expression via a TβRII-ALK5-mediated SMAD-dependent signaling pathway in human GCs. Additionally, TGF-β1-induced PTX3 suppression was mediated by upregulation of the SNAIL transcription factor, as knockdown of SNAIL completely reversed the suppression of PTX3 in response to TGF-β1. These findings could inform the roles of TGF-β1 and SNAIL in the regulation of follicular function and might provide therapeutic targets for the treatment of ovulation dysfunction.
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Affiliation(s)
- Hui Li
- Key Laboratory of Animal Breeding and Reproduction, Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, China
- Department of Obstetrics and Gynaecology, BC Children’s Hospital Research Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - Hsun-Ming Chang
- Department of Obstetrics and Gynaecology, BC Children’s Hospital Research Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - Zhendan Shi
- Key Laboratory of Animal Breeding and Reproduction, Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Peter C K Leung
- Department of Obstetrics and Gynaecology, BC Children’s Hospital Research Institute, University of British Columbia, Vancouver, British Columbia, Canada
- Correspondence: Peter C. K. Leung, PhD, FRSC, Department of Obstetrics and Gynaecology, Children Hospital Research Institute, University of British Columbia, Room 317, 950 West 28th Avenue, Vancouver, British Columbia V5Z 4H4, Canada. E-mail:
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166
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Zhao HJ, Klausen C, Li Y, Zhu H, Wang YL, Leung PCK. Bone morphogenetic protein 2 promotes human trophoblast cell invasion by upregulating N-cadherin via non-canonical SMAD2/3 signaling. Cell Death Dis 2018; 9:174. [PMID: 29416020 PMCID: PMC5833391 DOI: 10.1038/s41419-017-0230-1] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 10/27/2017] [Accepted: 12/06/2017] [Indexed: 12/22/2022]
Abstract
BMP2 expression is spatiotemporally correlated with embryo implantation and is crucial for endometrial decidualization and fertility in mice. BMP2 has been reported to increase the mesenchymal adhesion molecule N-cadherin and enhance cell invasion in cancer cells; moreover, studies suggest that N-cadherin promotes placental trophoblast invasion. However, whether BMP2 can promote trophoblast cell invasion during placentation remains unknown. The objective of our study was to investigate the effects of BMP2 on human trophoblast cell invasion and the involvement of N-cadherin and SMAD signaling. Primary and immortalized (HTR8/SVneo) cultures of human extravillous trophoblast (EVT) cells were used as study models. Treatment with recombinant human BMP2 increased HTR8/SVneo cell transwell Matrigel invasion as well as N-cadherin mRNA and protein levels, but had no significant effect on cell proliferation. Likewise, BMP2 treatment enhanced primary human EVT cell invasion and N-cadherin production. Basal and BMP2-induced invasion were attenuated by small interfering RNA-mediated downregulation of N-cadherin in both HTR8/SVneo and primary EVT cells. Intriguingly, BMP2 induced the phosphorylation/activation of both canonical SMAD1/5/8 and non-canonical SMAD2/3 signaling in HTR8/SVneo and primary EVT cells. Knockdown of SMAD2/3 or common SMAD4 totally abolished the effects of BMP2 on N-cadherin upregulation in HTR8/SVneo cells. Upregulation of SMAD2/3 phosphorylation and N-cadherin were totally abolished by type I receptor activin receptor-like kinases 2/3 (ALK2/3) inhibitor DMH1; moreover, knockdown of ALK2 or ALK3 inhibited N-cadherin upregulation. Interestingly, activation of SMAD2/3 and upregulation of N-cadherin were partially attenuated by ALK4/5/7 inhibitor SB431542 or knockdown of ALK4, but not ALK5. Our results show that BMP2 promotes trophoblast cell invasion by upregulating N-cadherin via non-canonical ALK2/3/4-SMAD2/3-SMAD4 signaling.
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Affiliation(s)
- Hong-Jin Zhao
- Shandong Provincial Hospital affiliated to Shandong University, Ji'nan, PR China, 250021.,Department of Obstetrics and Gynaecology, BC Children's Hospital Research Institute, University of British Columbia, Vancouver, British Columbia, Canada, V5Z 4H4
| | - Christian Klausen
- Department of Obstetrics and Gynaecology, BC Children's Hospital Research Institute, University of British Columbia, Vancouver, British Columbia, Canada, V5Z 4H4
| | - Yan Li
- Department of Obstetrics and Gynaecology, BC Children's Hospital Research Institute, University of British Columbia, Vancouver, British Columbia, Canada, V5Z 4H4
| | - Hua Zhu
- Department of Obstetrics and Gynaecology, BC Children's Hospital Research Institute, University of British Columbia, Vancouver, British Columbia, Canada, V5Z 4H4
| | - Yan-Ling Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China, 100101
| | - Peter C K Leung
- Department of Obstetrics and Gynaecology, BC Children's Hospital Research Institute, University of British Columbia, Vancouver, British Columbia, Canada, V5Z 4H4.
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167
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Bai L, Chang HM, Cheng JC, Chu G, Leung PCK, Yang G. Lithium chloride inhibits StAR and progesterone production through GSK-3β and ERK1/2 signaling pathways in human granulosa-lutein cells. Mol Cell Endocrinol 2018; 461:89-99. [PMID: 28867214 DOI: 10.1016/j.mce.2017.08.018] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Revised: 08/23/2017] [Accepted: 08/24/2017] [Indexed: 01/20/2023]
Abstract
Lithium chloride (LiCl) is a widely-used medication to treat neurological disorders that has undesirable side effects on the female reproductive system. It has been show that LiCl can inhibit ovarian folliculogenesis, promote follicle atresia and suppress steroid hormone production in rodents. However, the effects of LiCl on human ovarian steroidogenesis remain completely unknown. In this study, both primary and immortalized human granulosa-lutein (hGL) cells were used to investigate the effects of LiCl on progesterone production and its related enzyme expression as well as the underlying mechanisms. Our results showed that LiCl significantly down-regulated the steroidogenic acute regulatory protein (StAR) expression and subsequent progesterone production in hGL cells. Additionally, LiCl induced the phosphorylation of GSK-3β and ERK1/2 but not AKT or CREB. Knockdown of endogenous GSK-3β or inhibition of ERK1/2 partially reversed LiCl-induced down-regulation of StAR. Furthermore, by using dual inhibition approaches, the results showed that both GSK-3β and ERK1/2 signaling mediated the regulatory effect of LiCl on StAR expression. Our findings deepen our understanding of the pathological effects and the underlying molecular mechanisms of how lithium might affect the female reproductive system.
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Affiliation(s)
- Long Bai
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, PR China; Department of Obstetrics and Gynaecology, University of British Columbia, BC Children's Hospital Research Institute, Vancouver, British Columbia V5Z 4H4, Canada
| | - Hsun-Ming Chang
- Department of Obstetrics and Gynaecology, University of British Columbia, BC Children's Hospital Research Institute, Vancouver, British Columbia V5Z 4H4, Canada
| | - Jung-Chien Cheng
- Department of Obstetrics and Gynaecology, University of British Columbia, BC Children's Hospital Research Institute, Vancouver, British Columbia V5Z 4H4, Canada
| | - Guiyan Chu
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, PR China
| | - Peter C K Leung
- Department of Obstetrics and Gynaecology, University of British Columbia, BC Children's Hospital Research Institute, Vancouver, British Columbia V5Z 4H4, Canada.
| | - Gongshe Yang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, PR China.
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168
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Clarke HJ. Regulation of germ cell development by intercellular signaling in the mammalian ovarian follicle. WILEY INTERDISCIPLINARY REVIEWS. DEVELOPMENTAL BIOLOGY 2018; 7:10.1002/wdev.294. [PMID: 28892263 PMCID: PMC5746469 DOI: 10.1002/wdev.294] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 07/21/2017] [Accepted: 08/02/2017] [Indexed: 12/21/2022]
Abstract
Prior to ovulation, the mammalian oocyte undergoes a process of differentiation within the ovarian follicle that confers on it the ability to give rise to an embryo. Differentiation comprises two phases-growth, during which the oocyte increases more than 100-fold in volume as it accumulates macromolecules and organelles that will sustain early embryogenesis; and meiotic maturation, during which the oocyte executes the first meiotic division and prepares for the second division. Entry of an oocyte into the growth phase appears to be triggered when the adjacent granulosa cells produce specific growth factors. As the oocyte grows, it elaborates a thick extracellular coat termed the zona pellucida. Nonetheless, cytoplasmic extensions of the adjacent granulosa cells, termed transzonal projections (TZPs), enable them to maintain contact-dependent communication with the oocyte. Through gap junctions located where the TZP tips meet the oocyte membrane, they provide the oocyte with products that sustain its metabolic activity and signals that regulate its differentiation. Conversely, the oocyte secretes diffusible growth factors that regulate proliferation and differentiation of the granulosa cells. Gap junction-permeable products of the granulosa cells prevent precocious initiation of meiotic maturation, and the gap junctions also enable oocyte maturation to begin in response to hormonal signals received by the granulosa cells. Development of the oocyte or the somatic compartment may also be regulated by extracellular vesicles newly identified in follicular fluid and at TZP tips, which could mediate intercellular transfer of macromolecules. Oocyte differentiation thus depends on continuous signaling interactions with the somatic cells of the follicle. WIREs Dev Biol 2018, 7:e294. doi: 10.1002/wdev.294 This article is categorized under: Gene Expression and Transcriptional Hierarchies > Cellular Differentiation Signaling Pathways > Cell Fate Signaling Early Embryonic Development > Gametogenesis.
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Affiliation(s)
- Hugh J Clarke
- Department of Obstetrics and Gynecology, Research Institute of the McGill University Health Centre, McGill University, Montreal, Canada
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169
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Wu YT, Chang HM, Huang HF, Sheng JZ, Leung PCK. Bone morphogenetic protein 2 regulates cell-cell communication by down-regulating connexin43 expression in luteinized human granulosa cells. Mol Hum Reprod 2017; 23:155-165. [PMID: 27986931 DOI: 10.1093/molehr/gaw078] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Accepted: 12/05/2016] [Indexed: 12/16/2022] Open
Abstract
STUDY QUESTION Does bone morphogenetic protein 2 (BMP2) regulate connexin43 (Cx43) and modulate cell-cell communication in luteinized human granulosa cells? SUMMARY ANSWER BMP2 decreases gap junction intercellular communication (GJIC) of luteinized human granulosa cells by down-regulating Cx43 expression through an activin receptor-like kinase (ALK)2/ALK3-mediated Sma- and Mad-related protein (SMAD)-dependent signaling pathway. WHAT IS KNOWN ALREADY BMP2 and its putative receptors are highly expressed in the human corpus luteum and are involved in the process of luteolysis. Cx43-coupled gap junctions play a critical role in the development and maintenance of corpus luteum. STUDY DESIGN DURATION This is a laboratory study conducted over a 1-year period. At least three independent experiments with three replicates were conducted and the experimental samples were compared with the appropriate vehicle controls for all of the inhibition-approach, concentration-dependent or time-course studies. PARTICIPANTS/MATERIALS, SETTING, METHODS SVOG cell line (immortalized human granulosa-lutein cells derived from in vitro fertilization patients in an academic research center) was used as the study model. The changes of Cx43 expression and levels of phosphorylated SMAD1/5/8 protein were evaluated after exposure to recombinant human BMP2. Real-time quantitative PCR and Western blot analysis were used to examine the specific mRNA and protein levels, respectively. The BMP/TGF-β type I receptor inhibitors (Dorsomorphin, DMH-1 and SB431542) and target depletion small interfering RNAs (ALK2, ALK3, ALK6 and SMAD4) were used to investigate the underlying molecular mechanisms. A scrape loading and dye transfer assay was used to evaluate the GJIC between the SVOG cells. MAIN RESULTS AND THE ROLE OF CHANCE Treatment with BMP2 down-regulated the expression of Cx43 and decreased the GJIC activity, whereas it increased the phosphorylated SMAD1/5/8 protein in SVOG cells (P < 0.05). These biological effects were abolished by pre-treatment with the BMP type I receptor inhibitors, Dorsomorphin and DMH-1 (P < 0.05), but not SB431542. Additionally, the individual or concomitant small interfering RNA-mediated knockdown of ALK2 and ALK3, but not ALK6 attenuated the BMP2-induced increases in phosphorylated SMAD1/5/8 and down-regulation of Cx43 expression (P < 0.05). The knockdown of SMAD4 completely abolished the BMP2-induced down-regulation of Cx43 expression (P < 0.05). LIMITATIONS REASONS FOR CAUTION This experimental study was conducted in an in vitro cell culture system, and may not reflect a realistic intra-ovarian environment. WIDER IMPLICATIONS OF THE FINDINGS Our results suggested that BMP2 may be involved in the local modulation of cell-cell communication in the luteal phase. This study also represents the first comprehensive research of molecular mechanisms of BMP2 in the down-regulation Cx43 in luteinized human granulosa cells. Such data may provide valuable insights into ovarian physiology and benefit the development of potential therapeutic methods for patients suffering from luteal insufficiency. LARGE SCALE DATA N/A. STUDY FUNDING AND COMPETING INTEREST(s) This research was supported by an operating grant from the China-Canadian Joint Health Research Initiative Grants Program to P.C.K. Leung and J.Z. Sheng. The authors declare no competing interest with the contents of this article.
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Affiliation(s)
- Yan-Ting Wu
- International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Department of Obstetrics and Gynaecology, BC Children's Hospital Research Institute, University of British Columbia, Vancouver, British Columbia, Canada V5Z 4H4
| | - Hsun-Ming Chang
- Department of Obstetrics and Gynaecology, BC Children's Hospital Research Institute, University of British Columbia, Vancouver, British Columbia, Canada V5Z 4H4
| | - He-Feng Huang
- International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jian-Zhong Sheng
- Department of Pathology and Pathophysiology, School of Medicine, Zhejiang University, Hangzhou, China
| | - Peter C K Leung
- Department of Obstetrics and Gynaecology, BC Children's Hospital Research Institute, University of British Columbia, Vancouver, British Columbia, Canada V5Z 4H4
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170
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Bai L, Chang HM, Cheng JC, Chu G, Leung PCK, Yang G. ALK2/ALK3-BMPR2/ACVR2A Mediate BMP2-Induced Downregulation of Pentraxin 3 Expression in Human Granulosa-Lutein Cells. Endocrinology 2017; 158:3501-3511. [PMID: 28977600 DOI: 10.1210/en.2017-00436] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Accepted: 07/19/2017] [Indexed: 11/19/2022]
Abstract
Bone morphogenetic protein 2 (BMP2) belongs to the transforming growth factor-β superfamily and plays a critical role in regulating ovarian follicle function. Currently, the role of BMP2 during cumulus expansion remains to be determined. The aim of this study was to investigate the effect of BMP2 on the regulation of pentraxin 3 (PTX3) expression (the major component of cumulus expansion) and the underlying mechanisms in human granulosa-lutein (hGL) cells. Both primary and immortalized hGL cells were used as research models. Our results showed that treatment with BMP2 significantly suppressed the basal and luteinizing hormone-induced upregulation of PTX3. In addition, BMP2 stimulated the phosphorylation of SMAD1/5/8, and this effect was abolished by the addition of BMP type I receptor inhibitors, dorsomorphin homolog 1, and dorsomorphin but not SB431542. Moreover, the knockdown of activin receptorlike kinase 2/3 or BMP receptor type II/activin receptor type IIB receptors completely reversed the BMP2-induced phosphorylation of SMAD1/5/8 and restored PTX3 expression. Similarly, the knockdown of SMAD4 completely reversed the suppressive effect of BMP2 on the expression of PTX3. These results improve our understanding of the molecular mechanisms of BMP2 signaling. Our findings suggest that BMP2 may be involved in the regulation of cumulus expansion during the periovulatory stage.
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Affiliation(s)
- Long Bai
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, People's Republic of China
- Department of Obstetrics and Gynaecology, University of British Columbia, and British Columbia Children's Hospital Research Institute, Vancouver, British Columbia V5Z 4H4, Canada
| | - Hsun-Ming Chang
- Department of Obstetrics and Gynaecology, University of British Columbia, and British Columbia Children's Hospital Research Institute, Vancouver, British Columbia V5Z 4H4, Canada
| | - Jung-Chien Cheng
- Department of Obstetrics and Gynaecology, University of British Columbia, and British Columbia Children's Hospital Research Institute, Vancouver, British Columbia V5Z 4H4, Canada
| | - Guiyan Chu
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, People's Republic of China
| | - Peter C K Leung
- Department of Obstetrics and Gynaecology, University of British Columbia, and British Columbia Children's Hospital Research Institute, Vancouver, British Columbia V5Z 4H4, Canada
| | - Gongshe Yang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, People's Republic of China
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171
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Bai L, Chang HM, Cheng JC, Chu G, Leung PCK, Yang G. Lithium Chloride Increases COX-2 Expression and PGE2 Production in a Human Granulosa-Lutein SVOG Cell Line Via a GSK-3β/β-Catenin Signaling Pathway. Endocrinology 2017; 158:2813-2825. [PMID: 28911173 DOI: 10.1210/en.2017-00287] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2017] [Accepted: 07/06/2017] [Indexed: 11/19/2022]
Abstract
Lithium chloride (LiCl) is widely prescribed for the treatment of bipolar disorders and is associated with a higher incidence of reproductive adverse effects. Cyclooxygenase (COX)-2 and its derivative, prostaglandin E2 (PGE2), play regulatory roles in the human ovulatory process. Whether LiCl affects ovulation by regulating COX2 expression and PGE2 production in the human ovary is still largely unknown. The aim of this study was to investigate the effect of LiCl on the expression of COX-2 and production of PGE2 in human granulosa-lutein (hGL) cells, as well as the mechanisms underlying this effect. Both immortalized and primary hGL cells were used as research models. Using dual inhibition approaches, our results show that LiCl initiates the hGL cellular action by inhibiting the activity of glycogen synthase kinase-3β [GSK-3β (phosphorylation of GSK-3β)] and activation of extracellular signal-regulated kinase 1/2 (ERK1/2), but not by affecting protein kinase B or cAMP response element binding protein signaling. Additionally, the phosphorylation of GSK-3β, but not ERK1/2, resulted in the stabilization and nuclear localization of β-catenin. Furthermore, knockdown of either β-catenin or GSK-3β reversed the LiCl-induced upregulation of COX-2 expression. These results indicate that LiCl upregulates the expression of COX-2 and the subsequent production of PGE2 through the canonical GSK-3β/β-catenin signaling pathway in hGL cells.
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Affiliation(s)
- Long Bai
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, People's Republic of China
- Department of Obstetrics and Gynaecology, University of British Columbia and BC Children's Hospital Research Institute, Vancouver, British Columbia, Canada V5Z 4H4
| | - Hsun-Ming Chang
- Department of Obstetrics and Gynaecology, University of British Columbia and BC Children's Hospital Research Institute, Vancouver, British Columbia, Canada V5Z 4H4
| | - Jung-Chien Cheng
- Department of Obstetrics and Gynaecology, University of British Columbia and BC Children's Hospital Research Institute, Vancouver, British Columbia, Canada V5Z 4H4
| | - Guiyan Chu
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, People's Republic of China
| | - Peter C K Leung
- Department of Obstetrics and Gynaecology, University of British Columbia and BC Children's Hospital Research Institute, Vancouver, British Columbia, Canada V5Z 4H4
| | - Gongshe Yang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, People's Republic of China
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172
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Tiwari M, Chaube SK. Human Chorionic Gonadotropin Mediated Generation of Reactive Oxygen Species Is Sufficient to Induce Meiotic Exit but Not Apoptosis in Rat Oocytes. Biores Open Access 2017; 6:110-122. [PMID: 29098117 PMCID: PMC5655844 DOI: 10.1089/biores.2017.0018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Generation of reactive oxygen species (ROS) is associated with final stages of follicular development and ovulation in mammals. The human chorionic gonadotropin (hCG) mimics the action of luteinizing hormone and triggers follicular development and ovulation. However, it remains unclear whether hCG induces generation of ROS, if yes, whether hCG-mediated increased level of ROS could induce meiotic exit and/or apoptosis in rat oocytes. For this purpose, cumulus–oocyte complexes (COCs) were collected from ovary of experimental rats injected with 20 IU pregnant mare's serum gonadotropin for 48 h followed by 20 IU hCG for 0, 7, 14, and 21 h. The morphological changes in COCs, meiotic status of oocyte, total ROS, hydrogen peroxide (H2O2), inducible nitric oxide synthase (iNOS), nitric oxide (NO), Bax, Bcl-2, cytochrome c, telomerase reverse transcriptase (TERT) expression levels, and DNA fragmentation were analyzed in COCs. Our data suggest that hCG surge increased total ROS as well as H2O2 levels but decreased iNOS expression and total NO level in oocytes. The hCG-mediated increased level of ROS was sufficient to induce meiotic cell cycle resumption in majority of oocytes as evidenced by meiotic exit from diplotene as well as metaphase-II (M-II) arrest and their meiotic status. However, increase of ROS level due to hCG surge was not sufficient to trigger Bax and cytochrome c expression levels and DNA fragmentation in COCs. In addition, increased TERT activity was observed in oocytes collected 21 h post-hCG surge showing onset of oocyte aging. Taken together, these results suggest that hCG induces generation of ROS sufficient to trigger meiotic exit from diplotene, as well as M-II arrest, but not good enough to induce apoptosis in rat oocytes.
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Affiliation(s)
- Meenakshi Tiwari
- Cell Physiology Laboratory, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Shail K Chaube
- Cell Physiology Laboratory, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, India
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173
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Alsina-Sanchís E, Figueras A, Lahiguera A, Gil-Martín M, Pardo B, Piulats JM, Martí L, Ponce J, Matias-Guiu X, Vidal A, Villanueva A, Viñals F. TGFβ Controls Ovarian Cancer Cell Proliferation. Int J Mol Sci 2017; 18:ijms18081658. [PMID: 28758950 PMCID: PMC5578048 DOI: 10.3390/ijms18081658] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 07/17/2017] [Accepted: 07/24/2017] [Indexed: 12/15/2022] Open
Abstract
There have been no major improvements in the overall survival of ovarian cancer patients in recent decades. Even though more accurate surgery and more effective treatments are available, the mortality rate remains high. Given the differences in origin and the heterogeneity of these tumors, research to elucidate the signaling pathways involved is required. The Transforming Growth Factor (TGFβ) family controls different cellular responses in development and cell homeostasis. Disruption of TGFβ signaling has been implicated in many cancers, including ovarian cancer. This article considers the involvement of TGFβ in ovarian cancer progression, and reviews the various mechanisms that enable the TGFβ signaling pathway to control ovarian cancer cell proliferation. These mechanistic explanations support the therapeutic use of TGFβ inhibitors in ovarian cancer, which are currently in the early phases of development.
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Affiliation(s)
- Elisenda Alsina-Sanchís
- Program Against Cancer Therapeutic Resistance (ProCURE), Institut Català d'Oncologia, Hospital Duran i Reynals, L'Hospitalet de Llobregat, 08908 Barcelona, Spain.
- Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), L'Hospitalet de Llobregat, 08908 Barcelona, Spain.
| | - Agnès Figueras
- Program Against Cancer Therapeutic Resistance (ProCURE), Institut Català d'Oncologia, Hospital Duran i Reynals, L'Hospitalet de Llobregat, 08908 Barcelona, Spain.
- Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), L'Hospitalet de Llobregat, 08908 Barcelona, Spain.
| | - Alvaro Lahiguera
- Program Against Cancer Therapeutic Resistance (ProCURE), Institut Català d'Oncologia, Hospital Duran i Reynals, L'Hospitalet de Llobregat, 08908 Barcelona, Spain.
- Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), L'Hospitalet de Llobregat, 08908 Barcelona, Spain.
| | - Marta Gil-Martín
- Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), L'Hospitalet de Llobregat, 08908 Barcelona, Spain.
- Medical Oncology Department, Institut Català d'Oncologia, Hospital Duran i Reynals, IDIBELL, L'Hospitalet de Llobregat, 08908 Barcelona, Spain.
| | - Beatriz Pardo
- Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), L'Hospitalet de Llobregat, 08908 Barcelona, Spain.
- Medical Oncology Department, Institut Català d'Oncologia, Hospital Duran i Reynals, IDIBELL, L'Hospitalet de Llobregat, 08908 Barcelona, Spain.
| | - Josep M Piulats
- Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), L'Hospitalet de Llobregat, 08908 Barcelona, Spain.
- Medical Oncology Department, Institut Català d'Oncologia, Hospital Duran i Reynals, IDIBELL, L'Hospitalet de Llobregat, 08908 Barcelona, Spain.
| | - Lola Martí
- Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), L'Hospitalet de Llobregat, 08908 Barcelona, Spain.
- Gynaecologic Department, Bellvitge University Hospital, L'Hospitalet de Llobregat, 08908 Barcelona, Spain.
| | - Jordi Ponce
- Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), L'Hospitalet de Llobregat, 08908 Barcelona, Spain.
- Gynaecologic Department, Bellvitge University Hospital, L'Hospitalet de Llobregat, 08908 Barcelona, Spain.
| | - Xavier Matias-Guiu
- Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), L'Hospitalet de Llobregat, 08908 Barcelona, Spain.
- Servei d'Anatomia Patològica, Hospital Universitari de Bellvitge, CIBERONC, L'Hospitalet de Llobregat, 08908 Barcelona, Spain.
| | - August Vidal
- Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), L'Hospitalet de Llobregat, 08908 Barcelona, Spain.
- Servei d'Anatomia Patològica, Hospital Universitari de Bellvitge, CIBERONC, L'Hospitalet de Llobregat, 08908 Barcelona, Spain.
- Xenopat, Carrer de la Feixa Llarga S/N, L'Hospitalet de Llobregat, 08907 Barcelona, Spain.
- Departament de Patologia i Terapèutica Experimental, Universitat de Barcelona, L'Hospitalet de Llobregat, 08908 Barcelona, Spain.
| | - Alberto Villanueva
- Program Against Cancer Therapeutic Resistance (ProCURE), Institut Català d'Oncologia, Hospital Duran i Reynals, L'Hospitalet de Llobregat, 08908 Barcelona, Spain.
- Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), L'Hospitalet de Llobregat, 08908 Barcelona, Spain.
- Xenopat, Carrer de la Feixa Llarga S/N, L'Hospitalet de Llobregat, 08907 Barcelona, Spain.
| | - Francesc Viñals
- Program Against Cancer Therapeutic Resistance (ProCURE), Institut Català d'Oncologia, Hospital Duran i Reynals, L'Hospitalet de Llobregat, 08908 Barcelona, Spain.
- Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), L'Hospitalet de Llobregat, 08908 Barcelona, Spain.
- Departament de Ciències Fisiològiques, Universitat de Barcelona, L'Hospitalet de Llobregat, 08908 Barcelona, Spain.
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174
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Carbenoxolone reduces cyclic nucleotides level, destabilizes maturation promoting factor and induces meiotic exit from diplotene arrest in rat cumulus oocytes complexes cultured in vitro. Biomed Pharmacother 2017; 94:219-230. [PMID: 28763745 DOI: 10.1016/j.biopha.2017.07.097] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Revised: 07/14/2017] [Accepted: 07/19/2017] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Disruption of gap junction and transfer of cyclic nucleotides to the oocyte lead to meiotic exit from diplotene arrest (EDA) in mammals. In the present study, we examined whether a gap junction blocker, carbenoxolone (CBX) could induce EDA by reducing cyclic nucleotides level and destabilizing maturation promoting factor (MPF) in rat oocytes cultured in vitro. METHODS Diplotene-arrested cumulus oocyte complexes (COCs) were collected from ovary of immature female rats after 20 IU pregnant mare's serum gonadotropins (PMSG) for 48h. These diplotene-arrested COCs were incubated with various concentration of CBX for 3h in vitro. The morphological changes, meiotic status of oocyte, inducible nitric oxide synthase (iNOS), total nitric oxide (NO), adenosine 3',5'-cyclic monophosphate (cAMP), guanosine 3',5'-cyclic monophosphate (cGMP), cell division cycle 25B (Cdc25B), changes in specific phosphorylation status of cyclin-dependent kinase 1 (Cdk1) and cyclin B1 levels were analyzed. RESULTS CBX induced EDA in a concentration-dependent manner. The iNOS expression, total NO and cyclic nucleotides level were significantly decreased. The reduced cyclic nucleotides level resulted in the decrease of Cdc25B expression level. The decreased Cdc25B was associated with the increased Thr14/Tyr15 phosphorylated Cdk1 level. However, Thr161 phosphorylated Cdk1 as well as cyclin B1 levels were significantly reduced leading to MPF destabilization. The destabilized MPF finally induced EDA in rat COCs cultured in vitro. CONCLUSIONS Our results suggest that CBX blocked gap junctions interrupted the transfer of cyclic nucleotides to the oocyte. Reduction of cyclic nucleotides level destabilized MPF and induced EDA in vitro. Thus, CBX could be used to induce meiotic maturation under in vitro culture conditions during assisted reproductive technology (ART) programs.
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175
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He GF, Yang LL, Luo SM, Ma JY, Ge ZJ, Shen W, Yin S, Sun QY. The role of L-type calcium channels in mouse oocyte maturation, activation and early embryonic development. Theriogenology 2017; 102:67-74. [PMID: 28750296 DOI: 10.1016/j.theriogenology.2017.07.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Revised: 06/16/2017] [Accepted: 07/15/2017] [Indexed: 12/15/2022]
Abstract
Calcium ion fluctuation is closely related to the transformation of cell cycle. However, little is known about the function of L-type calcium channel in mammalian oocyte and embryo development. We thus studied the roles of L-type calcium channel in mouse oocyte meiotic maturation, parthenogenetic activation and early embryonic development. We used the antagonist Amlodipine to block L-type calcium channel. Oocytes or zygotes were cultured to different time points with 0 μM, 10 μM, 30 μM and 50 μM Amlodipine. Then we checked the rate of first polar body extrusion, spindle formation, asymmetric division parthenogenetic activation and early embryo cleavage. The results showed that Amlodipine treatment did not affect germinal vesicle breakdown, but caused disruption of cytoskeleton organization, symmetric division, formation of mature oocytes with a large polar body, or reduced the first polar body extrusion, depending on its concentrations. Amlodipine treatment also resulted in decreased parthenogenetic activation and arrested early embryonic development. Overall, these data suggest that proper function of L-type calcium channel is critical for oocyte maturation, activation, and early embryonic development.
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Affiliation(s)
- Gui-Fang He
- Key Laboratory of Animal Reproduction and Germplasm Enhancement in Universities of Shandong, College of Animal Science and Technology, Qingdao Agricultural University, China; College of Life Science, Qingdao Agricultural University, China; Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao, China
| | - Lei-Lei Yang
- Key Laboratory of Animal Reproduction and Germplasm Enhancement in Universities of Shandong, College of Animal Science and Technology, Qingdao Agricultural University, China; Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao, China
| | - Shi-Ming Luo
- Key Laboratory of Animal Reproduction and Germplasm Enhancement in Universities of Shandong, College of Animal Science and Technology, Qingdao Agricultural University, China; Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao, China
| | - Jun-Yu Ma
- Key Laboratory of Animal Reproduction and Germplasm Enhancement in Universities of Shandong, College of Animal Science and Technology, Qingdao Agricultural University, China; Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao, China
| | - Zhao-Jia Ge
- Key Laboratory of Animal Reproduction and Germplasm Enhancement in Universities of Shandong, College of Animal Science and Technology, Qingdao Agricultural University, China; Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao, China
| | - Wei Shen
- Key Laboratory of Animal Reproduction and Germplasm Enhancement in Universities of Shandong, College of Animal Science and Technology, Qingdao Agricultural University, China; Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao, China
| | - Shen Yin
- Key Laboratory of Animal Reproduction and Germplasm Enhancement in Universities of Shandong, College of Animal Science and Technology, Qingdao Agricultural University, China; Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao, China.
| | - Qing-Yuan Sun
- Key Laboratory of Animal Reproduction and Germplasm Enhancement in Universities of Shandong, College of Animal Science and Technology, Qingdao Agricultural University, China; Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao, China; State Key Laboratory of Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.
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176
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Budna J, Rybska M, Ciesiółka S, Bryja A, Borys S, Kranc W, Wojtanowicz-Markiewicz K, Jeseta M, Sumelka E, Bukowska D, Antosik P, Brüssow KP, Bruska M, Nowicki M, Zabel M, Kempisty B. Expression of genes associated with BMP signaling pathway in porcine oocytes before and after IVM - a microarray approach. Reprod Biol Endocrinol 2017; 15:43. [PMID: 28576120 PMCID: PMC5457624 DOI: 10.1186/s12958-017-0261-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2017] [Accepted: 05/26/2017] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND The full maturational capability of mammalian oocytes is accompanied by nuclear and cytoplasmic modifications, which are associated with proliferation and differentiation of surrounding cumulus cells. These events are regulated on molecular level by the expression of target genes involved in signal transduction pathways crucial for folliculogenesis and oogenesis. Transforming growth factor beta signaling includes several molecules that are involved in the regulation of oogenesis and embryo growth, including bone morphogenetic protein (BMP). However, the BMP-related gene expression profile in oocytes at different maturational stages requires further investigation. METHODS Oocytes were isolated from pubertal crossbred Landrace gilts follicles, selected with a use of BCB staining test and analyzed before and after in vitro maturation. Gene expression profiles were examined using an Affymetrix microarray approach and validated by RT-qPCR. Database for Annotation, Visualization, and Integrated Discovery (DAVID) software was used for the extraction of the genes belonging to a BMP-signaling pathway ontology group. RESULTS The assay revealed 12,258 different transcripts in porcine oocytes, among which 379 genes were down-regulated and 40 were up-regulated. The DAVID database indicated a "BMP signaling pathway" ontology group, which was significantly regulated in both groups of oocytes. We discovered five up-regulated genes in oocytes before versus after in vitro maturation (IVM): chordin-like 1 (CHRDL1), follistatin (FST), transforming growth factor-beta receptor-type III (TGFβR3), decapentaplegic homolog 4 (SMAD4), and inhibitor of DNA binding 1 (ID1). CONCLUSIONS Increased expression of CHRDL1, FST, TGFβR3, SMAD4, and ID1 transcripts before IVM suggested a subordinate role of the BMP signaling pathway in porcine oocyte maturational competence. Conversely, it is postulated that these genes are involved in early stages of folliculogenesis and oogenesis regulation in pigs, since in oocytes before IVM increased expression was observed.
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Affiliation(s)
- Joanna Budna
- 0000 0001 2205 0971grid.22254.33Department of Histology and Embryology, Poznan University of Medical Sciences, Swiecickiego 6 St., 60–781 Poznan, Poland
| | - Marta Rybska
- 0000 0001 2157 4669grid.410688.3Institute of Veterinary Sciences, Poznan University of Life Sciences, Wolynska 35 St, 60–637 Poznan, Poland
| | - Sylwia Ciesiółka
- 0000 0001 2205 0971grid.22254.33Department of Histology and Embryology, Poznan University of Medical Sciences, Swiecickiego 6 St., 60–781 Poznan, Poland
| | - Artur Bryja
- 0000 0001 2205 0971grid.22254.33Department of Anatomy, Poznan University of Medical Sciences, Swiecickiego 6 St, 60–781 Poznan, Poland
| | - Sylwia Borys
- 0000 0001 2205 0971grid.22254.33Department of Anatomy, Poznan University of Medical Sciences, Swiecickiego 6 St, 60–781 Poznan, Poland
| | - Wiesława Kranc
- 0000 0001 2205 0971grid.22254.33Department of Anatomy, Poznan University of Medical Sciences, Swiecickiego 6 St, 60–781 Poznan, Poland
| | - Katarzyna Wojtanowicz-Markiewicz
- 0000 0001 2205 0971grid.22254.33Department of Histology and Embryology, Poznan University of Medical Sciences, Swiecickiego 6 St., 60–781 Poznan, Poland
- 0000 0001 2157 4669grid.410688.3Institute of Veterinary Sciences, Poznan University of Life Sciences, Wolynska 35 St, 60–637 Poznan, Poland
| | - Michal Jeseta
- 0000 0004 0609 2751grid.412554.3Department of Obstetrics and Gynecology, University Hospital and Masaryk University, Obilnitrh 11, 602 00 Brno, Czech Republic
| | - Ewa Sumelka
- 0000 0001 2205 0971grid.22254.33Department of Histology and Embryology, Poznan University of Medical Sciences, Swiecickiego 6 St., 60–781 Poznan, Poland
| | - Dorota Bukowska
- 0000 0001 2157 4669grid.410688.3Institute of Veterinary Sciences, Poznan University of Life Sciences, Wolynska 35 St, 60–637 Poznan, Poland
| | - Paweł Antosik
- 0000 0001 2157 4669grid.410688.3Institute of Veterinary Sciences, Poznan University of Life Sciences, Wolynska 35 St, 60–637 Poznan, Poland
| | - Klaus P. Brüssow
- 0000 0001 2205 0971grid.22254.33Department of Anatomy, Poznan University of Medical Sciences, Swiecickiego 6 St, 60–781 Poznan, Poland
| | - Małgorzata Bruska
- 0000 0001 2205 0971grid.22254.33Department of Anatomy, Poznan University of Medical Sciences, Swiecickiego 6 St, 60–781 Poznan, Poland
| | - Michał Nowicki
- 0000 0001 2205 0971grid.22254.33Department of Histology and Embryology, Poznan University of Medical Sciences, Swiecickiego 6 St., 60–781 Poznan, Poland
| | - Maciej Zabel
- 0000 0001 2205 0971grid.22254.33Department of Histology and Embryology, Poznan University of Medical Sciences, Swiecickiego 6 St., 60–781 Poznan, Poland
| | - Bartosz Kempisty
- 0000 0001 2205 0971grid.22254.33Department of Histology and Embryology, Poznan University of Medical Sciences, Swiecickiego 6 St., 60–781 Poznan, Poland
- 0000 0001 2205 0971grid.22254.33Department of Anatomy, Poznan University of Medical Sciences, Swiecickiego 6 St, 60–781 Poznan, Poland
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Bai L, Chang HM, Cheng JC, Klausen C, Chu G, Leung PCK, Yang G. SMAD1/5 mediates bone morphogenetic protein 2-induced up-regulation of BAMBI expression in human granulosa-lutein cells. Cell Signal 2017; 37:52-61. [PMID: 28578012 DOI: 10.1016/j.cellsig.2017.05.017] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2017] [Revised: 04/04/2017] [Accepted: 05/31/2017] [Indexed: 12/22/2022]
Abstract
Bone morphogenetic protein and activin membrane-bound inhibitor (BAMBI) is a transforming growth factor β (TGF-β) type I receptor antagonist that negatively regulates TGF-β and bone morphogenetic protein (BMP) signaling. BAMBI has been shown to be regulated by TGF-β signaling; however, whether BAMBI can be regulated by BMP signaling remains to be determined. The aim of this study was to investigate the effect of BMP2 on the regulation of BAMBI expression in human granulosa-lutein cells and the underlying mechanisms. Both primary and immortalized human granulosa-lutein cells were used as research models. Using dual inhibition approaches, our results showed that BMP2 activated SMAD1/5/8 phosphorylation and up-regulated BAMBI mRNA levels, which was reversed by the BMP type I receptor inhibitors, DMH-1 and dorsomorphin, but not by SB431542 (activin/TGF-β type I receptor inhibitor). Moreover, the combined knockdown of SMAD1 and SMAD5 completely abolished the BMP2-induced up-regulation of BAMBI. Similarly, knockdown of SMAD4 reversed the BMP2-induced up-regulation of BAMBI. Pre-treatment with BMP2 inhibited the TGF-β1-induced phosphorylation of SMAD2/3 and up-regulation of MMP2, and these inhibitory effects were reversed by knockdown of endogenous BAMBI. Our findings indicate that BAMBI is a BMP-responsive gene and that BAMBI participates in the negative feedback regulation of TGF-β signaling in the human ovary.
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Affiliation(s)
- Long Bai
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, PR China; Department of Obstetrics and Gynaecology, BC Children's Hospital Research Institute, University of British Columbia, Vancouver, British Columbia V5Z 4H4, Canada
| | - Hsun-Ming Chang
- Department of Obstetrics and Gynaecology, BC Children's Hospital Research Institute, University of British Columbia, Vancouver, British Columbia V5Z 4H4, Canada
| | - Jung-Chien Cheng
- Department of Obstetrics and Gynaecology, BC Children's Hospital Research Institute, University of British Columbia, Vancouver, British Columbia V5Z 4H4, Canada
| | - Christian Klausen
- Department of Obstetrics and Gynaecology, BC Children's Hospital Research Institute, University of British Columbia, Vancouver, British Columbia V5Z 4H4, Canada
| | - Guiyan Chu
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, PR China
| | - Peter C K Leung
- Department of Obstetrics and Gynaecology, BC Children's Hospital Research Institute, University of British Columbia, Vancouver, British Columbia V5Z 4H4, Canada.
| | - Gongshe Yang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, PR China.
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Hu KL, Zhao H, Chang HM, Yu Y, Qiao J. Kisspeptin/Kisspeptin Receptor System in the Ovary. Front Endocrinol (Lausanne) 2017; 8:365. [PMID: 29354093 PMCID: PMC5758547 DOI: 10.3389/fendo.2017.00365] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Accepted: 12/13/2017] [Indexed: 12/26/2022] Open
Abstract
Kisspeptins are a family of neuropeptides that are critical for initiating puberty and regulating ovulation in sexually mature females via the central control of the hypothalamic-pituitary-gonadal axis. Recent studies have shown that kisspeptin and its receptor kisspeptin receptor (KISS1R) are expressed in the mammalian ovary. Convincing evidence indicates that kisspeptins can activate a wide variety of signals via its binding to KISS1R. Experimental data gathered recently suggest a putative role of kisspeptin signaling in the direct control of ovarian function, including follicular development, oocyte maturation, steroidogenesis, and ovulation. Dysregulation or naturally occurring mutations of the kisspeptin/KISS1R system may negatively affect the ovarian function, leading to reproductive pathology or female infertility. A comprehensive understanding of the expression, actions, and underlying molecular mechanisms of this system in the human ovary is essential for novel approaches to therapeutic and diagnostic interventions in reproductive diseases and infertility.
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Affiliation(s)
- Kai-Lun Hu
- Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology and Key Laboratory of Assisted Reproduction, Ministry of Education, Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China
| | - Hongcui Zhao
- Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology and Key Laboratory of Assisted Reproduction, Ministry of Education, Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China
- *Correspondence: Hongcui Zhao, ; Yang Yu,
| | - Hsun-Ming Chang
- Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology and Key Laboratory of Assisted Reproduction, Ministry of Education, Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China
| | - Yang Yu
- Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology and Key Laboratory of Assisted Reproduction, Ministry of Education, Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China
- *Correspondence: Hongcui Zhao, ; Yang Yu,
| | - Jie Qiao
- Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology and Key Laboratory of Assisted Reproduction, Ministry of Education, Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China
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