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Chang WF, Hwu YM, Xu J, Lin CJ, Wang SW, Cheng AS, Lu J, Lu CH, Sung LY. Derivation of Patient Specific Pluripotent Stem Cells Using Clinically Discarded Cumulus Cells. PLoS One 2016; 11:e0165715. [PMID: 27802323 PMCID: PMC5089679 DOI: 10.1371/journal.pone.0165715] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Accepted: 10/17/2016] [Indexed: 11/18/2022] Open
Abstract
Induced pluripotent stem cells (iPSCs) are powerful tools for basic and translational research, as well as regenerative medicine. In routine human in vitro fertilization (IVF) practices, cumulus cells (CCs) are discarded, representing a potential source of biological materials for regenerative medicine. In this study, we derived patient-specific iPSCs using CCs from human infertility clinics for the first time. The human cumulus cell derived iPSCs (hc-iPSCs) were characterized for growth, karyotype, expression of pluripotency genes, and were subjected to embryoid bodies (EBs) and teratoma assays to evaluate their differentiation capacity. Hc-iPSCs display typical iPSC characteristics, and are capable of differentiating into all germ layers in vitro and in vivo. We further show that putative primordial germ cell like cells (PGCLCs) can be derived using hc-iPSCs. Our data demonstrate the feasibility of deriving patient-specific pluripotent stem cells using CCs.
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Affiliation(s)
- Wei-Fang Chang
- Institute of Biotechnology, National Taiwan University, Taipei, Taiwan
| | - Yuh-Ming Hwu
- Department of Obstetrics and Gynecology, Mackay Memorial Hospital, Taipei, Taiwan
- Department of Obstetrics and Gynecology, Mackay Medical College, New Taipei City, Taiwan
- Department of Obstetrics and Gynecology, Mackay Junior College of Medicine, Nursing, and Management, Taipei, Taiwan
| | - Jie Xu
- Center for Advanced Models for Translational Sciences and Therapeutics, University of Michigan Medical Center, Ann Arbor, Michigan, United States of America
| | - Chen-Ju Lin
- Department of Obstetrics and Gynecology, Mackay Memorial Hospital, Taipei, Taiwan
- Department of Obstetrics and Gynecology, Mackay Medical College, New Taipei City, Taiwan
| | - Sheng-Wen Wang
- Institute of Biotechnology, National Taiwan University, Taipei, Taiwan
| | - An-Sheng Cheng
- Yupintang Traditional Chinese Medicine Foundation, Kaohsiung, Taiwan
| | - Jean Lu
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Chung-Hao Lu
- Department of Obstetrics and Gynecology, Mackay Memorial Hospital, Taipei, Taiwan
- * E-mail: (LYS); (CHL)
| | - Li-Ying Sung
- Institute of Biotechnology, National Taiwan University, Taipei, Taiwan
- Center for Biotechnology, National Taiwan University, Taipei, Taiwan
- Animal Resource Center, National Taiwan University, Taipei, Taiwan
- Agricultural Biotechnology Research Center, Academia Sinica, Taipei, Taiwan
- * E-mail: (LYS); (CHL)
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102
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Chang HM, Qiao J, Leung PCK. Oocyte-somatic cell interactions in the human ovary-novel role of bone morphogenetic proteins and growth differentiation factors. Hum Reprod Update 2016; 23:1-18. [PMID: 27797914 PMCID: PMC5155571 DOI: 10.1093/humupd/dmw039] [Citation(s) in RCA: 172] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Revised: 09/29/2016] [Accepted: 10/11/2016] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Initially identified for their capability to induce heterotopic bone formation,
bone morphogenetic proteins (BMPs) are multifunctional growth factors that belong
to the transforming growth factor β superfamily. Using cellular and
molecular genetic approaches, recent studies have implicated intra-ovarian BMPs as
potent regulators of ovarian follicular function. The bi-directional communication
of oocytes and the surrounding somatic cells is mandatory for normal follicle
development and oocyte maturation. This review summarizes the current knowledge on
the physiological role and molecular determinants of these ovarian regulatory
factors within the human germline-somatic regulatory loop. OBJECTIVE AND RATIONALE The regulation of ovarian function remains poorly characterized in humans because,
while the fundamental process of follicular development and oocyte maturation is
highly similar across species, most information on the regulation of ovarian
function is obtained from studies using rodent models. Thus, this review focuses
on the studies that used human biological materials to gain knowledge about human
ovarian biology and disorders and to develop strategies for preventing, diagnosing
and treating these abnormalities. SEARCH METHODS Relevant English-language publications describing the roles of BMPs or growth
differentiation factors (GDFs) in human ovarian biology and phenotypes were
comprehensively searched using PubMed and the Google Scholar database. The
publications included those published since the initial identification of BMPs in
the mammalian ovary in 1999 through July 2016. OUTCOMES Studies using human biological materials have revealed the expression of BMPs,
GDFs and their putative receptors as well as their molecular signaling in the
fundamental cells (oocyte, cumulus/granulosa cells (GCs) and theca/stroma cells)
of the ovarian follicles throughout follicle development. With the availability of
recombinant human BMPs/GDFs and the development of immortalized human cell lines,
functional studies have demonstrated the physiological role of intra-ovarian
BMPs/GDFs in all aspects of ovarian functions, from follicle development to
steroidogenesis, cell–cell communication, oocyte maturation, ovulation and
luteal function. Furthermore, there is crosstalk between these potent ovarian
regulators and the endocrine signaling system. Dysregulation or naturally
occurring mutations within the BMP system may lead to several female reproductive
diseases. The latest development of recombinant BMPs, synthetic BMP inhibitors,
gene therapy and tools for BMP-ligand sequestration has made the BMP pathway a
potential therapeutic target in certain human fertility disorders; however,
further clinical trials are needed. Recent studies have indicated that GDF8 is an
intra-ovarian factor that may play a novel role in regulating ovarian functions in
the human ovary. WIDER IMPLICATIONS Intra-ovarian BMPs/GDFs are critical regulators of folliculogenesis and human
ovarian functions. Any dysregulation or variations in these ligands or their
receptors may affect the related intracellular signaling and influence ovarian
functions, which accounts for several reproductive pathologies and infertility.
Understanding the normal and pathological roles of intra-ovarian BMPs/GDFs,
especially as related to GC functions and follicular fluid levels, will inform
innovative approaches to fertility regulation and improve the diagnosis and
treatment of ovarian disorders.
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Affiliation(s)
- Hsun-Ming Chang
- Department of Obstetrics and Gynaecology, Center for Reproductive Medicine, Peking University Third Hospital, 49 North Garden Rd., Haidian District, Beijing 100191, P.R. China.,Department of Obstetrics and Gynaecology, Child and Family Research Institute, University of British Columbia, Room 317, 950 West 28 Avenue, Vancouver, British Columbia, Canada V5Z 4H4
| | - Jie Qiao
- Department of Obstetrics and Gynaecology, Center for Reproductive Medicine, Peking University Third Hospital, 49 North Garden Rd., Haidian District, Beijing 100191, P.R. China
| | - Peter C K Leung
- Department of Obstetrics and Gynaecology, Child and Family Research Institute, University of British Columbia, Room 317, 950 West 28 Avenue, Vancouver, British Columbia, Canada V5Z 4H4
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103
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Melo EO, Cordeiro DM, Pellegrino R, Wei Z, Daye ZJ, Nishimura RC, Dode MAN. Identification of molecular markers for oocyte competence in bovine cumulus cells. Anim Genet 2016; 48:19-29. [PMID: 27650317 DOI: 10.1111/age.12496] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/18/2016] [Indexed: 12/17/2022]
Abstract
Cumulus cells (CCs) have an important role during oocyte growth, competence acquisition, maturation, ovulation and fertilization. In an attempt to isolate potential biomarkers for bovine in vitro fertilization, we identified genes differentially expressed in bovine CCs from oocytes with different competence statuses, through microarray analysis. The model of follicle size, in which competent cumulus-oocyte complexes (COCs) were recovered from bigger follicles (≥8.0 mm in diameter) and less competent ones from smaller follicles (1-3 mm), was used. We identified 4178 genes that were differentially expressed (P < 0.05) in the two categories of CCs. The list was further enriched, through the use of a 2.5-fold change in gene expression as a cutoff value, to include 143 up-regulated and 80 down-regulated genes in CCs of competent COCs compared to incompetent COCs. These genes were screened according to their cellular roles, most of which were related to cell cycle, DNA repair, energy metabolism, metabolism of amino acids, cell signaling, meiosis, ovulation and inflammation. Three candidate genes up-regulated (FGF11, IGFBP4, SPRY1) and three down-regulated (ARHGAP22, COL18A1 and GPC4) in CCs from COCs of big follicles (≥8.1 mm) were selected for qPCR analysis. The selected genes showed the same expression patterns by qPCR and microarray analysis. These genes may be potential genetic markers that predict oocyte competence in in vitro fertilization routines.
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Affiliation(s)
- E O Melo
- Embrapa- Genetic Resources and Biotechnology, Brasília, DF, 70770-917, Brazil
| | - D M Cordeiro
- School of Agriculture and Veterinary Medicine, University of Brasilia, Brasília, DF, 70910-900, Brazil
| | - R Pellegrino
- Center for Applied Genomics, The Children's Hospital of Philadelphia, Philadelphia, PA, 19104, USA
| | - Z Wei
- Department of Computer Science, New Jersey Institute of Technology, Newark, NJ, 07102, USA
| | - Z J Daye
- Division of Epidemiology and Biostatistics, University of Arizona, Tucson, AZ, 85721, USA
| | - R C Nishimura
- School of Agriculture and Veterinary Medicine, University of Brasilia, Brasília, DF, 70910-900, Brazil
| | - M A N Dode
- Embrapa- Genetic Resources and Biotechnology, Brasília, DF, 70770-917, Brazil
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104
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Yao D, Wang Z, Miao L, Wang L. Effects of extracts and isolated compounds from safflower on some index of promoting blood circulation and regulating menstruation. JOURNAL OF ETHNOPHARMACOLOGY 2016; 191:264-272. [PMID: 27286914 DOI: 10.1016/j.jep.2016.06.009] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Revised: 05/24/2016] [Accepted: 06/04/2016] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Carthamus tinctorius is used as one of the Traditional Chinese Medicine (TCM) materials in prescriptions and composite to promote blood circulation to remove blood stasis, regulate menstruation and alleviate pain for over 2500 years. Modern pharmacological experiments have demonstrated that safflower has wide-reaching biological activities, including dilating coronary artery, modulating immune system, improving myocardial ischemia, anticoagulation and thromboprophylaxis, antioxidation, antihypoxic, antiaging, antifatigue, antiinflammation, anti-hepatic fibrosis, antitumor, analgesia, etc. MATERIALS AND METHODS Platelet aggregation of safflower extract and main constituents in safflower were determined by PAF-induced or ADP-induced platelet aggregation in vitro. Anticoagulation activity was measured by clotting assay of thrombin time (TT), prothrombin time (PT) and activated partial thromboplastin time (APTT) according to the methods provided by the biological reagents provider (Sun Biochemical). Antioxidant effects of safflower were assessed using DPPH radical-scavenging activity test, ABTS radical-scavenging activity test and ferric reducing antioxidant power test. In addition, rats ovary granulosa cell proliferation activity was used for the bio-activity index on regulate menstruation of safflower. RESULTS Safflower extract at the concentration of 0.7g/mL (P<0.001) and 0.5g/mL (P<0.01) had significantly antagonistic effect on PAF-induced platelet aggregation, compared with negative control. And the anti-platelet aggregation of 0.7g/mL safflower extract was significantly stronger than that of positive control (P<0.001). 0.7g/mL of hydroxysafflor yellow A (P<0.01), anhydrosafflor yellow B (P<0.05), 6-hydroxykaempferol-3-O-rutinoside (P<0.05), keampferol-3-O-β-rutinoside (P<0.01) had significant effect on platelet aggregation compared with negative control. Safflower extract at the concentration of 0.5g/mL (P<0.001) and 0.125g/mL (P<0.01) could significantly inhibit ADP-induced platelet aggregation, compared with negative control. And antagonistic effect of safflower extract was significantly stronger than the effect of positive control (P<0.001). Adenosine (P<0.001), anhydrosafflor yellow B (P<0.01) and 6-hydroxykaempferol-3-O-rutinoside (P<0.01) at the concentration of 0.5g/mL had significant effect on ADP-induced platelet aggregation compared with negative control. 0.125g/mL of adenosine (P<0.05) had significant effect on ADP-induced platelet aggregation compared with negative control. The effect of 0.5g/mL adenosine (P<0.01) and 6-hydroxykaempferol-3-O-rutinoside (P<0.05) was significantly stronger than that of positive control. Safflower extract at the concentration of 0.7mg/mL (P<0.001) and 0.5mg/mL (P<0.001) had significantly anticoagulation activity in PT, TT and APTT, compared with negative control. However, the respective compound didn't have significant effect on PT and TT at experiment concentration. At the concentration of 0.7mg/mL, hydroxysafflor yellow A (P<0.01), 6-hydroxykaempferol-3,6,7-tri-O-β-d-glucoside (P<0.05), 6-hydroxyapigenin-6-O-glucoside-7-O-glucuronide (P<0.01), anhydrosafflor yellow B (P<0.001), 6-hydroxykaempferol-3-O-rutinoside (P<0.05) and keampferol-3-O-β-rutinoside (P<0.05) significantly prolonged APTT, compared with negative control. At the concentration of 0.5mg/mL, hydroxysafflor yellow A (P<0.05), 6-hydroxyapigenin-6-O-glucoside-7-O-glucuronide (P<0.05), anhydrosafflor yellow B (P<0.001), 6-hydroxykaempferol-3-O-rutinoside (P<0.05) and keampferol-3-O-β-rutinoside (P<0.05) could significantly prolong APTT, compared with negative control. From the results of DPPH, ABTS radical scavenging activity test and Fe(3+) reduction power test, 5mg/mL, 2.5mg/mL and 1.25mg/mL safflower extract had antioxidant effects. Every compound with each concentration (5mg/mL, 2.5mg/mL and 1.25mg/mL) had significant effect on Fe(3+) reduction power (P<0.001 vs. negative control). Safflower extract, cytidine, 6-hydroxy-kaempferol-3,6-di-O-β-d-glucoside-7-O-β-d-glucuronide, 6-hydroxykaemp-ferol-3,6,7-tri-O-β-D-glucoside and keampferol-3-O-β-rutinoside significantly promoted ovarian granulosa cell proliferation. CONCLUSION Based on previous researches, the activities of safflower extract and pure compounds isolated from safflower were studied in this paper. This study found some compounds with the effects of anti-platelet aggregation, anticoagulation, antioxidation and ovarian granulosa cell proliferation, and further revealed the possible pharmacological mechanism of safflower.
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Affiliation(s)
- Dong Yao
- Jingjiang Hospital of Traditional Chinese Medicine, Jingjiang 214500, China
| | - Zheng Wang
- Jingjiang Hospital of Traditional Chinese Medicine, Jingjiang 214500, China
| | - Li Miao
- Jingjiang Hospital of Traditional Chinese Medicine, Jingjiang 214500, China
| | - Linyan Wang
- Jingjiang Hospital of Traditional Chinese Medicine, Jingjiang 214500, China.
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105
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Braga DPAF, Setti AS, Lo Turco EG, Cordeiro FB, Cabral EC, Cortezzi SS, Ono E, Figueira RCS, Eberlin MN, Borges E. Protein expression in human cumulus cells as an indicator of blastocyst formation and pregnancy success. J Assist Reprod Genet 2016; 33:1571-1583. [PMID: 27614633 DOI: 10.1007/s10815-016-0800-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Accepted: 08/17/2016] [Indexed: 12/14/2022] Open
Abstract
PURPOSE The goal for the present study was to implement a technique for protein extraction and identification in human cumulus cells (CCs). METHODS Forty samples of CCs were collected after ovum pick-up from patients undergoing intracytoplasmic sperm injection (ICSI). Samples were split into the blastocyst group (n = 10), including patients in which all embryos converted into blastocysts, and the non-blastocyst group (n = 10), including patients in which none of the embryos reached the blastocyst stage or the positive-pregnancy (n = 10) and negative-pregnancy group (n = 10). Proteins were extracted and injected into a liquid chromatography system coupled to a mass spectrometer. The spectra were processed and used to search a database. RESULTS There were 87 different proteins in samples from the blastocyst and non-blastocyst groups, in which 30 were exclusively expressed in the blastocyst group and 17 in the non-blastocyst group. Among the 72 proteins detected in the pregnancy groups, 19 were exclusively expressed in the positive, and 16 were exclusively expressed in the negative-pregnancy group. CONCLUSIONS CC proteomics may be useful for predicting pregnancy success and the identification of patients that should be included in extended embryo culture programs.
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Affiliation(s)
- Daniela Paes Almeida Ferreira Braga
- Fertility Medical Group, Av. Brigadeiro Luis Antônio, 4545, São Paulo, SP, 01401-002, Brazil.,Disciplina de Urologia, Área de Reprodução Humana, Departamento de Cirurgia, Universidade Federal de São Paulo-UNIFESP, Rua Embaú, 231, São Paulo, SP, 04039-060, Brazil.,Instituto Sapientiae-Centro de Estudos e Pesquisa em Reprodução Humana Assistida, Rua Vieira Maciel, 62, São Paulo, SP, 04503-040, Brazil
| | - Amanda Souza Setti
- Fertility Medical Group, Av. Brigadeiro Luis Antônio, 4545, São Paulo, SP, 01401-002, Brazil.,Instituto Sapientiae-Centro de Estudos e Pesquisa em Reprodução Humana Assistida, Rua Vieira Maciel, 62, São Paulo, SP, 04503-040, Brazil
| | - Edson Guimarães Lo Turco
- Disciplina de Urologia, Área de Reprodução Humana, Departamento de Cirurgia, Universidade Federal de São Paulo-UNIFESP, Rua Embaú, 231, São Paulo, SP, 04039-060, Brazil
| | - Fernanda Bertuccez Cordeiro
- Disciplina de Urologia, Área de Reprodução Humana, Departamento de Cirurgia, Universidade Federal de São Paulo-UNIFESP, Rua Embaú, 231, São Paulo, SP, 04039-060, Brazil
| | - Elaine Cristina Cabral
- Centro Pluridisciplinar de Pesquisas Químicas, Biológicas e Agronômicas (CPQBA)-Universidade de Campinas-UNICAMP, Campinas, SP, 13083-970, Brazil
| | - Sylvia Sanches Cortezzi
- Instituto Sapientiae-Centro de Estudos e Pesquisa em Reprodução Humana Assistida, Rua Vieira Maciel, 62, São Paulo, SP, 04503-040, Brazil
| | - Erika Ono
- Instituto Sapientiae-Centro de Estudos e Pesquisa em Reprodução Humana Assistida, Rua Vieira Maciel, 62, São Paulo, SP, 04503-040, Brazil
| | | | - Marcos Nogueira Eberlin
- Laboratório ThoMSon de Espectrometria de Massas-Instituto de Química, Universidade de Campinas-UNICAMP, Campinas, SP, 13083-970, Brazil
| | - Edson Borges
- Fertility Medical Group, Av. Brigadeiro Luis Antônio, 4545, São Paulo, SP, 01401-002, Brazil. .,Disciplina de Urologia, Área de Reprodução Humana, Departamento de Cirurgia, Universidade Federal de São Paulo-UNIFESP, Rua Embaú, 231, São Paulo, SP, 04039-060, Brazil.
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106
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Pourret E, Hamamah S, Aït-Ahmed O. [Biomarkers of the cumulus cells in medically assisted procreation: State-of-the-art]. ACTA ACUST UNITED AC 2016; 44:647-658. [PMID: 27450380 DOI: 10.1016/j.gyobfe.2016.06.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Accepted: 06/13/2016] [Indexed: 01/08/2023]
Abstract
The oocyte grows within a follicle composed of layers of somatic cells. It undergoes with the cumulus cells that form the innermost layer a dialogue that is critical for its maturation. Based on the assumption that the transcriptome of the cumulus cells reflects the physiology of the oocyte, it may prove a useful non-invasive tool in embryo selection to improve assisted reproduction outcomes. During the past decade, various studies have been conducted with the objective of identifying cumulus biomarker genes as prognosis tools for oocyte quality and competence. Remarkably no common biomarkers stand out among all these studies. In this review we perform a critical analysis of the literature in order to reveal some of the parameters that may account for these discrepancies, such as patients' inclusion criteria (maternal age, stimulation protocols), day of embryo transfer (day 3 or 5), outcome criteria (oocyte potential, embryo competence, pregnancy). Moreover there is a lack of standardization in the experimental designs used for RNA extraction and gene expression assessment (microarrays, RT-qPCR) and for the statistical analyses. In conclusion, critical analyses such as the present one are indispensable to pave the way for future searches of predictive biomarkers of pregnancy.
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Affiliation(s)
- E Pourret
- Inserm UMR 1203 « développement embryonnaire précoce humain et pluripotence », IRMB, 34295 Montpellier, France; Université de Montpellier (UM), UMR 1203 « développement embryonnaire précoce humain et pluripotence », IRMB, 34295 Montpellier, France
| | - S Hamamah
- Inserm UMR 1203 « développement embryonnaire précoce humain et pluripotence », IRMB, 34295 Montpellier, France; Université de Montpellier (UM), UMR 1203 « développement embryonnaire précoce humain et pluripotence », IRMB, 34295 Montpellier, France; Département de biologie de la reproduction, hôpital Arnaud-de-Villeneuve, CHRU, 34295 Montpellier, France
| | - O Aït-Ahmed
- Inserm UMR 1203 « développement embryonnaire précoce humain et pluripotence », IRMB, 34295 Montpellier, France; Université de Montpellier (UM), UMR 1203 « développement embryonnaire précoce humain et pluripotence », IRMB, 34295 Montpellier, France.
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107
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Bidirectional communication between cumulus cells and the oocyte: Old hands and new players? Theriogenology 2016; 86:62-8. [DOI: 10.1016/j.theriogenology.2016.04.019] [Citation(s) in RCA: 129] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Revised: 01/29/2016] [Accepted: 03/14/2016] [Indexed: 12/11/2022]
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108
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Epigenetic alterations of CYP19A1 gene in Cumulus cells and its relevance to infertility in endometriosis. J Assist Reprod Genet 2016; 33:1105-13. [PMID: 27167072 DOI: 10.1007/s10815-016-0727-z] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Accepted: 05/02/2016] [Indexed: 12/20/2022] Open
Abstract
PURPOSE The purpose of the present study was to investigate the epigenetic mechanisms responsible for the aberrant aromatase expression (CYP19A1) in Cumulus Cells (CCs) of infertile endometriosis patients. METHOD Cumulus cells were obtained from 24 infertile patients with and without endometriosis who underwent ovarian stimulation for intracytoplasmic sperm injection. Expression of CYP19A1 gene was quantified using Reverse Transcription Q-PCR. DNA methylation, histone modifications, and binding of Estrogen Receptor, ERβ to regulatory DNA sequences of CYP19A1 gene were evaluated by Chromatin ImmunoPrecipitation (ChIP) assay. RESULTS CYP19A1 gene expression in CCs of endometriosis patients was significantly lower than the control group (P = 0.04). Higher incorporation of MeCP2 (as a marker of DNA methylation) on PII and PI.4 promoters, and hypoacetylation at H3K9 in PII and hypermethylation at H3K9 in PI.4 were observed in CYP19A1 gene in endometriosis patients (P < 0.05). Moreover, a decreased level of ERβ binding to PII and an increased level of its binding to PI.3 and PI.4 promoters of CYP19A1 were observed in endometriosis patients when compared to control. CONCLUSION Significant reduction of CYP19A1 gene expression in CCs of endometriosis patients may be the result of epigenetic alterations in its regulatory regions, either by DNA methylation or histone modifications. These epigenetic changes along with differential binding of ERβ (as a transcription factor) in CYP19A1 promoters may impair follicular steroidogenesis, leading to poor Oocyte and embryo condition in endometriosis patients.
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109
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Guo N, Yang F, Liu Q, Ren X, Zhao H, Li Y, Ai J. Effects of cumulus cell removal time during in vitro fertilization on embryo quality and pregnancy outcomes: a prospective randomized sibling-oocyte study. Reprod Biol Endocrinol 2016; 14:18. [PMID: 27072537 PMCID: PMC4830045 DOI: 10.1186/s12958-016-0151-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Accepted: 04/04/2016] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND To investigate whether cumulus cell removal after a 3 h co-incubation of gametes can affect the outcomes of in vitro fertilization. METHODS A prospective randomized sibling-oocyte study was performed in which sibling oocytes obtained from each patient were randomly assigned to either a 3 h or 20 h group (cumulus cells removed at 3 h or 20 h after insemination, respectively). Same origin embryos (either 3 h or 20 h) were transferred. The study participants were patients < 38 years old and with infertility due to tubal factors. The study outcomes included fertilization, embryo quality, and birth status. RESULTS The study enrolled 172 patients, from whom 2275 oocytes were retrieved (1139 oocytes for the 3 h group and 1136 oocytes for the 20 h group). A total of 134 patients received embryo transfers (74 patients in the 3 h group and 60 patients in the 20 h group), and there were 54 live births (32 in the 3 h group and 22 in the 20 h group). When compared with patients in the 20 h group, patients in the 3 h group produced a larger number of optimal quality embryos, but had higher rates of polyspermy and low birth weight newborns. The two groups showed no differences in their rates of normal fertilization, pregnancy, and live birth. CONCLUSIONS When compared with results obtained using a traditional cumulus cell removal protocol, early cumulus cell removal has both advantages and disadvantages. Further studies, and especially long-term outcome studies on newborns, need to be performed. TRIAL REGISTRATION Current controlled trial ChiCTR-OOC-15006878.
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Affiliation(s)
- Na Guo
- Department of Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Qiaokou District, Wuhan, 430030 China
| | - Fei Yang
- Department of Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Qiaokou District, Wuhan, 430030 China
| | - Qun Liu
- Department of Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Qiaokou District, Wuhan, 430030 China
| | - Xinling Ren
- Department of Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Qiaokou District, Wuhan, 430030 China
| | - Hua Zhao
- Department of Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Qiaokou District, Wuhan, 430030 China
| | - Yufeng Li
- Department of Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Qiaokou District, Wuhan, 430030 China
| | - Jihui Ai
- Department of Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Qiaokou District, Wuhan, 430030 China
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110
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Ogino M, Tsubamoto H, Sakata K, Oohama N, Hayakawa H, Kojima T, Shigeta M, Shibahara H. Mitochondrial DNA copy number in cumulus cells is a strong predictor of obtaining good-quality embryos after IVF. J Assist Reprod Genet 2016; 33:367-371. [PMID: 26749386 DOI: 10.1007/s10815-015-0621-0] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Accepted: 11/16/2015] [Indexed: 02/06/2023] Open
Abstract
PURPOSE The aim of this study was to establish a simple tool to predict good-quality embryos in in vitro fertilization (IVF) by using cumulus cells (CCs) or peripheral blood cells (PBCs). METHODS Mitochondrial DNA was extracted from CCs and PBCs in patients undergoing IVF. Using real-time polymerase chain reaction, mtDNA copy number in a single cell was calculated. Embryo quality was assessed when it was transferred or frozen. RESULTS CCs were obtained from 60 oocyte cumulus-cell complexes (OCCCs) in 30 women, and PBCs were collected from 18 women. For the 30 women in the study, the median age was 37 years old (range, 24-43), and the mean body mass index was 21.4 (standard error, 2.0). mtDNA content of CCs and PBCs was highly correlated (Pearson's r = 0.900, p < 0.0001). The median mtDNA content of CCs for good- and poor-quality embryos was 140 and 57, respectively (p < 0.0001). The median mtDNA content of PBCs for good- and poor-quality embryos was 36 and 13, respectively (p = 0.604). The logistic regression model indicated that mtDNA content in CCs was the only parameter that predicted good-quality embryos (p = 0.020). The receiver operating characteristic curve for obtaining good-quality embryos by mtDNA copy number in CCs had an area under the curve of 0.823, and using a threshold of 86, positive and negative predictive values were 84.4 and 82.1 %, respectively. CONCLUSIONS The determination of mtDNA content in CCs can be used to predict good-quality embryos.
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Affiliation(s)
- Mai Ogino
- Department of Obstetrics and Gynecology, Hyogo College of Medicine, Mukogawa 1-1, Nishinomiya, Hyogo, 663-8501, Japan
| | - Hiroshi Tsubamoto
- Department of Obstetrics and Gynecology, Hyogo College of Medicine, Mukogawa 1-1, Nishinomiya, Hyogo, 663-8501, Japan
| | - Kazuko Sakata
- Department of Obstetrics and Gynecology, Hyogo College of Medicine, Mukogawa 1-1, Nishinomiya, Hyogo, 663-8501, Japan
| | - Naoko Oohama
- Advanced Fertility Center of Fuchu Nozomi, Fuchu-cho 2-1-3, Izumi, Osaka, 594-0071, Japan
| | - Hitomi Hayakawa
- Advanced Fertility Center of Fuchu Nozomi, Fuchu-cho 2-1-3, Izumi, Osaka, 594-0071, Japan
| | - Teruhito Kojima
- Department of Obstetrics and Gynecology, Hyogo College of Medicine, Mukogawa 1-1, Nishinomiya, Hyogo, 663-8501, Japan
| | - Minoru Shigeta
- Advanced Fertility Center of Fuchu Nozomi, Fuchu-cho 2-1-3, Izumi, Osaka, 594-0071, Japan
| | - Hiroaki Shibahara
- Department of Obstetrics and Gynecology, Hyogo College of Medicine, Mukogawa 1-1, Nishinomiya, Hyogo, 663-8501, Japan.
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111
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Yang CR, Lowther KM, Lalioti MD, Seli E. Embryonic Poly(A)-Binding Protein (EPAB) Is Required for Granulosa Cell EGF Signaling and Cumulus Expansion in Female Mice. Endocrinology 2016; 157:405-16. [PMID: 26492470 PMCID: PMC4701890 DOI: 10.1210/en.2015-1135] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Embryonic poly(A)-binding protein (EPAB) is the predominant poly(A)-binding protein in Xenopus, mouse, and human oocytes and early embryos before zygotic genome activation. EPAB is required for translational activation of maternally stored mRNAs in the oocyte and Epab(-/-) female mice are infertile due to impaired oocyte maturation, cumulus expansion, and ovulation. The aim of this study was to characterize the mechanism of follicular somatic cell dysfunction in Epab(-/-) mice. Using a coculture system of oocytectomized cumulus oophorus complexes (OOXs) with denuded oocytes, we found that when wild-type OOXs were cocultured with Epab(-/-) oocytes, or when Epab(-/-) OOXs were cocultured with WT oocytes, cumulus expansion failed to occur in response to epidermal growth factor (EGF). This finding suggests that oocytes and cumulus cells (CCs) from Epab(-/-) mice fail to send and receive the necessary signals required for cumulus expansion. The abnormalities in Epab(-/-) CCs are not due to lower expression of the oocyte-derived factors growth differentiation factor 9 or bone morphogenetic protein 15, because Epab(-/-) oocytes express these proteins at comparable levels with WT. Epab(-/-) granulosa cells (GCs) exhibit decreased levels of phosphorylated MEK1/2, ERK1/2, and p90 ribosomal S6 kinase in response to lutenizing hormone and EGF treatment, as well as decreased phosphorylation of the EGF receptor. In conclusion, EPAB, which is oocyte specific, is required for the ability of CCs and GCs to become responsive to LH and EGF signaling. These results emphasize the importance of oocyte-somatic communication for GC and CC function.
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Affiliation(s)
- Cai-Rong Yang
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut 06510
| | - Katie M Lowther
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut 06510
| | - Maria D Lalioti
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut 06510
| | - Emre Seli
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut 06510
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Shaeib F, Khan SN, Ali I, Thakur M, Saed MG, Dai J, Awonuga AO, Banerjee J, Abu-Soud HM. The Defensive Role of Cumulus Cells Against Reactive Oxygen Species Insult in Metaphase II Mouse Oocytes. Reprod Sci 2015; 23:498-507. [PMID: 26468254 DOI: 10.1177/1933719115607993] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
We investigated the ability of reactive oxygen species (ROS), such as hydrogen peroxide (H(2)O(2)), hydroxyl radical ((·)OH), and hypochlorous acid (HOCl), to overcome the defensive capacity of cumulus cells and elucidate the mechanism through which ROS differentially deteriorate oocyte quality. Metaphase II mouse oocytes with (n = 1634) and without cumulus cells (n = 1633) were treated with increasing concentration of ROS, and the deterioration in oocyte quality was assessed by the changes in the microtubule morphology and chromosomal alignment. Oocyte and cumulus cell viability and cumulus cell number were assessed by indirect immunofluorescence, staining of gap junction protein, and trypan blue staining. The treated oocytes showed decreased quality as a function of increasing concentrations of ROS when compared to controls. Cumulus cells show protection against H(2)O(2) and (·)OH insult at lower concentrations, but this protection was lost at higher concentrations (>50 μmol/L). At higher H(2)O(2) concentrations, treatment dramatically influenced the cumulus cell number and viability with resulting reduction in the antioxidant capacity making the oocyte more susceptible to oxidative damage. However, cumulus cells offered no significant protection against HOCl at any concentration used. In all circumstances in which cumulus cells did not offer protection to the oocyte, both cumulus cell number and viability were decreased. Therefore, the deterioration in oocyte quality may be caused by one or more of the following: a decrease in the antioxidant machinery by the loss of cumulus cells, the lack of scavengers for specific ROS, and/or the ability of the ROS to overcome these defenses.
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Affiliation(s)
- Faten Shaeib
- Departments of Obstetrics and Gynecology, the C.S. Mott Center for Human Growth and Development, Wayne State University School of Medicine, Detroit, MI, USA
| | - Sana N Khan
- Departments of Obstetrics and Gynecology, the C.S. Mott Center for Human Growth and Development, Wayne State University School of Medicine, Detroit, MI, USA
| | - Iyad Ali
- Departments of Obstetrics and Gynecology, the C.S. Mott Center for Human Growth and Development, Wayne State University School of Medicine, Detroit, MI, USA Department of Biochemistry and Genetics, Faculty of Medicine, An-Najah National University, Nablus, Palestine
| | - Mili Thakur
- Departments of Obstetrics and Gynecology, the C.S. Mott Center for Human Growth and Development, Wayne State University School of Medicine, Detroit, MI, USA
| | - Mohammed G Saed
- Departments of Obstetrics and Gynecology, the C.S. Mott Center for Human Growth and Development, Wayne State University School of Medicine, Detroit, MI, USA
| | - Jing Dai
- Departments of Obstetrics and Gynecology, the C.S. Mott Center for Human Growth and Development, Wayne State University School of Medicine, Detroit, MI, USA
| | - Awoniyi O Awonuga
- Departments of Obstetrics and Gynecology, the C.S. Mott Center for Human Growth and Development, Wayne State University School of Medicine, Detroit, MI, USA
| | - Jashoman Banerjee
- Departments of Obstetrics and Gynecology, the C.S. Mott Center for Human Growth and Development, Wayne State University School of Medicine, Detroit, MI, USA
| | - Husam M Abu-Soud
- Departments of Obstetrics and Gynecology, the C.S. Mott Center for Human Growth and Development, Wayne State University School of Medicine, Detroit, MI, USA Department of Biochemistry and Molecular Biology, Wayne State University School of Medicine, Detroit, MI, USA
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113
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Harada M, Nose E, Takahashi N, Hirota Y, Hirata T, Yoshino O, Koga K, Fujii T, Osuga Y. Evidence of the activation of unfolded protein response in granulosa and cumulus cells during follicular growth and maturation. Gynecol Endocrinol 2015; 31:783-7. [PMID: 26291812 DOI: 10.3109/09513590.2015.1062862] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
The objective of the present study is to investigate whether unfolded protein response (UPR), activated by endoplasmic reticulum (ER) stress, in granulosa cells (GC) and cumulus cells (CC) is involved in the process of follicular growth and maturation. First, to examine the presence of UPR in growing follicles, the expression of spliced form of X-box-binding protein 1 (XBP1(S)) and heat shock 70 kDa protein 5 (HSPA5) mRNA, typical UPR genes, in mice ovaries were examined by in situ hybridization. GC of later stage than large secondary follicles expressed both XBP1(S) and HSPA5 mRNA, which was accompanied with the activation of ER stress sensor proteins, inositol-requiring enzyme 1 (IRE1) and double-stranded RNA-activated protein kinase-like ER kinase (PERK), confirmed by immunohistochemistry. Next, to examine the association between the fertilization capacity of oocytes and the expression levels of UPR genes in surrounding CC, human CC were collected from patients undergoing ICSI. The expression levels of XBP1(S) mRNA, quantified by RT-PCR, in CC enclosing human oocytes achieving fertilization were two-fold higher, than those in CC enclosing oocytes without fertilization capacity. In conclusion, UPR is activated during follicular growth and suggested to be involved in the process of follicular growth and maturation.
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Affiliation(s)
- Miyuki Harada
- a Department of Obstetrics and Gynecology, Faculty of Medicine , University of Tokyo , Tokyo , Japan and
| | - Emi Nose
- a Department of Obstetrics and Gynecology, Faculty of Medicine , University of Tokyo , Tokyo , Japan and
| | - Nozomi Takahashi
- a Department of Obstetrics and Gynecology, Faculty of Medicine , University of Tokyo , Tokyo , Japan and
| | - Yasushi Hirota
- a Department of Obstetrics and Gynecology, Faculty of Medicine , University of Tokyo , Tokyo , Japan and
| | - Tetsuya Hirata
- a Department of Obstetrics and Gynecology, Faculty of Medicine , University of Tokyo , Tokyo , Japan and
| | - Osamu Yoshino
- b Department of Obstetrics and Gynecology, Faculty of Medicine , University of Toyama , Toyama , Japan
| | - Kaori Koga
- a Department of Obstetrics and Gynecology, Faculty of Medicine , University of Tokyo , Tokyo , Japan and
| | - Tomoyuki Fujii
- a Department of Obstetrics and Gynecology, Faculty of Medicine , University of Tokyo , Tokyo , Japan and
| | - Yutaka Osuga
- a Department of Obstetrics and Gynecology, Faculty of Medicine , University of Tokyo , Tokyo , Japan and
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Wu YG, Barad DH, Kushnir VA, Lazzaroni E, Wang Q, Albertini DF, Gleicher N. Aging-related premature luteinization of granulosa cells is avoided by early oocyte retrieval. J Endocrinol 2015; 226:167-80. [PMID: 26264981 DOI: 10.1530/joe-15-0246] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/08/2015] [Indexed: 01/31/2023]
Abstract
Why IVF pregnancy rates decline sharply after age 43 is unknown. In this study, we compared granulosa cell (GC) function in young oocyte donors (n=31, ages 21-29), middle-aged (n=64, ages 30-37) and older infertile patients (n=41, ages 43-47). Gene expressions related to gonadotropin activity, steroidogenesis, apoptosis and luteinization were examined by real-time PCR and western blot in GCs collected from follicular fluid. FSH receptor (FSHR), aromatase (CYP19A1) and 17β-hydroxysteroid dehydrogenase (HSD17B) expression were found down regulated with advancing age, while LH receptor (LHCGR), P450scc (CYP11A1) and progesterone receptor (PGR) were up regulated. Upon in vitro culture, GCs were found to exhibit lower proliferation and increased apoptosis with aging. While FSH supplementation stimulated GCs growth and prevented luteinization in vitro. These observations demonstrate age-related functional declines in GCs, consistent with premature luteinization. To avoid premature luteinization in women above age 43, we advanced oocyte retrieval by administering human chorionic gonadotropin at maximal leading follicle size of 16 mm (routine 19-21 mm). Compared to normal cycles in women of similar age, earlier retrieved patients demonstrated only a marginal increase in oocyte prematurity, yet exhibited improved embryo numbers as well as quality and respectable clinical pregnancy rates. Premature follicular luteinization appears to contribute to rapidly declining IVF pregnancy chances after age 43, and can be avoided by earlier oocyte retrieval.
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Affiliation(s)
- Yan-Guang Wu
- The Center for Human Reproduction (CHR)21 East 69th Street, New York, New York 10021, USAFoundation for Reproductive MedicineNew York, New York 10021, USADepartment of Obstetrics and GynecologyAlbert Einstein College of Medicine, Bronx, New York 10461, USADepartment of Obstetrics and GynecologyWake Forest University, Winston Salem, North Carolina 27106, USADepartment of Molecular and Integrative PhysiologyUniversity of Kansas Medical Center, Kansas City, Kansas 66160, USAStem Cell Biology and Molecular Embryology LaboratoryThe Rockefeller University, New York, New York 10065, USA
| | - David H Barad
- The Center for Human Reproduction (CHR)21 East 69th Street, New York, New York 10021, USAFoundation for Reproductive MedicineNew York, New York 10021, USADepartment of Obstetrics and GynecologyAlbert Einstein College of Medicine, Bronx, New York 10461, USADepartment of Obstetrics and GynecologyWake Forest University, Winston Salem, North Carolina 27106, USADepartment of Molecular and Integrative PhysiologyUniversity of Kansas Medical Center, Kansas City, Kansas 66160, USAStem Cell Biology and Molecular Embryology LaboratoryThe Rockefeller University, New York, New York 10065, USA The Center for Human Reproduction (CHR)21 East 69th Street, New York, New York 10021, USAFoundation for Reproductive MedicineNew York, New York 10021, USADepartment of Obstetrics and GynecologyAlbert Einstein College of Medicine, Bronx, New York 10461, USADepartment of Obstetrics and GynecologyWake Forest University, Winston Salem, North Carolina 27106, USADepartment of Molecular and Integrative PhysiologyUniversity of Kansas Medical Center, Kansas City, Kansas 66160, USAStem Cell Biology and Molecular Embryology LaboratoryThe Rockefeller University, New York, New York 10065, USA The Center for Human Reproduction (CHR)21 East 69th Street, New York, New York 10021, USAFoundation for Reproductive MedicineNew York, New York 10021, USADepartment of Obstetrics and GynecologyAlbert Einstein College of Medicine, Bronx, New York 10461, USADepartment of Obstetrics and GynecologyWake Forest University, Winston Salem, North Carolina 27106, USADepartment of Molecular and Integrative PhysiologyUniversity of Kansas Medical Center, Kansas City, Kansas 66160, USAStem Cell Biology and Molecular Embryology LaboratoryThe Rockefeller University, New York, New York 10065, USA
| | - Vitaly A Kushnir
- The Center for Human Reproduction (CHR)21 East 69th Street, New York, New York 10021, USAFoundation for Reproductive MedicineNew York, New York 10021, USADepartment of Obstetrics and GynecologyAlbert Einstein College of Medicine, Bronx, New York 10461, USADepartment of Obstetrics and GynecologyWake Forest University, Winston Salem, North Carolina 27106, USADepartment of Molecular and Integrative PhysiologyUniversity of Kansas Medical Center, Kansas City, Kansas 66160, USAStem Cell Biology and Molecular Embryology LaboratoryThe Rockefeller University, New York, New York 10065, USA The Center for Human Reproduction (CHR)21 East 69th Street, New York, New York 10021, USAFoundation for Reproductive MedicineNew York, New York 10021, USADepartment of Obstetrics and GynecologyAlbert Einstein College of Medicine, Bronx, New York 10461, USADepartment of Obstetrics and GynecologyWake Forest University, Winston Salem, North Carolina 27106, USADepartment of Molecular and Integrative PhysiologyUniversity of Kansas Medical Center, Kansas City, Kansas 66160, USAStem Cell Biology and Molecular Embryology LaboratoryThe Rockefeller University, New York, New York 10065, USA
| | - Emanuela Lazzaroni
- The Center for Human Reproduction (CHR)21 East 69th Street, New York, New York 10021, USAFoundation for Reproductive MedicineNew York, New York 10021, USADepartment of Obstetrics and GynecologyAlbert Einstein College of Medicine, Bronx, New York 10461, USADepartment of Obstetrics and GynecologyWake Forest University, Winston Salem, North Carolina 27106, USADepartment of Molecular and Integrative PhysiologyUniversity of Kansas Medical Center, Kansas City, Kansas 66160, USAStem Cell Biology and Molecular Embryology LaboratoryThe Rockefeller University, New York, New York 10065, USA
| | - Qi Wang
- The Center for Human Reproduction (CHR)21 East 69th Street, New York, New York 10021, USAFoundation for Reproductive MedicineNew York, New York 10021, USADepartment of Obstetrics and GynecologyAlbert Einstein College of Medicine, Bronx, New York 10461, USADepartment of Obstetrics and GynecologyWake Forest University, Winston Salem, North Carolina 27106, USADepartment of Molecular and Integrative PhysiologyUniversity of Kansas Medical Center, Kansas City, Kansas 66160, USAStem Cell Biology and Molecular Embryology LaboratoryThe Rockefeller University, New York, New York 10065, USA
| | - David F Albertini
- The Center for Human Reproduction (CHR)21 East 69th Street, New York, New York 10021, USAFoundation for Reproductive MedicineNew York, New York 10021, USADepartment of Obstetrics and GynecologyAlbert Einstein College of Medicine, Bronx, New York 10461, USADepartment of Obstetrics and GynecologyWake Forest University, Winston Salem, North Carolina 27106, USADepartment of Molecular and Integrative PhysiologyUniversity of Kansas Medical Center, Kansas City, Kansas 66160, USAStem Cell Biology and Molecular Embryology LaboratoryThe Rockefeller University, New York, New York 10065, USA The Center for Human Reproduction (CHR)21 East 69th Street, New York, New York 10021, USAFoundation for Reproductive MedicineNew York, New York 10021, USADepartment of Obstetrics and GynecologyAlbert Einstein College of Medicine, Bronx, New York 10461, USADepartment of Obstetrics and GynecologyWake Forest University, Winston Salem, North Carolina 27106, USADepartment of Molecular and Integrative PhysiologyUniversity of Kansas Medical Center, Kansas City, Kansas 66160, USAStem Cell Biology and Molecular Embryology LaboratoryThe Rockefeller University, New York, New York 10065, USA
| | - Norbert Gleicher
- The Center for Human Reproduction (CHR)21 East 69th Street, New York, New York 10021, USAFoundation for Reproductive MedicineNew York, New York 10021, USADepartment of Obstetrics and GynecologyAlbert Einstein College of Medicine, Bronx, New York 10461, USADepartment of Obstetrics and GynecologyWake Forest University, Winston Salem, North Carolina 27106, USADepartment of Molecular and Integrative PhysiologyUniversity of Kansas Medical Center, Kansas City, Kansas 66160, USAStem Cell Biology and Molecular Embryology LaboratoryThe Rockefeller University, New York, New York 10065, USA The Center for Human Reproduction (CHR)21 East 69th Street, New York, New York 10021, USAFoundation for Reproductive MedicineNew York, New York 10021, USADepartment of Obstetrics and GynecologyAlbert Einstein College of Medicine, Bronx, New York 10461, USADepartment of Obstetrics and GynecologyWake Forest University, Winston Salem, North Carolina 27106, USADepartment of Molecular and Integrative PhysiologyUniversity of Kansas Medical Center, Kansas City, Kansas 66160, USAStem Cell Biology and Molecular Embryology LaboratoryThe Rockefeller University, New York, New York 10065, USA The Center for Human Reproduction (CHR)21 East 69th Street, New York, New York 10021, USAFoundation for Reproductive MedicineNew York, New York 10021, USADepartment of Obstetrics and GynecologyAlbert Einstein College of Medicine, Bronx, New York 10461, USADepartment of Obstetrics and GynecologyWake Forest University, Winston Salem, North Carolina 27106, USADepartment of Molecular and Integrative PhysiologyUniversity of Kansas Medical Center, Kansas City, Kansas 66160, USAStem Cell Biology and Molecular Embryology LaboratoryThe Rockefeller University, New York, New York 10065, USA
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Effects of Mitochondrial Uncoupling Protein 2 Inhibition by Genipin in Human Cumulus Cells. BIOMED RESEARCH INTERNATIONAL 2015; 2015:323246. [PMID: 26356408 PMCID: PMC4556840 DOI: 10.1155/2015/323246] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Revised: 03/13/2015] [Accepted: 03/31/2015] [Indexed: 01/14/2023]
Abstract
UCP2 plays a physiological role by regulating mitochondrial biogenesis, maintaining energy balance, ROS elimination, and regulating cellular autophagy in numerous tissues. But the exact roles of UCP2 in cumulus cells are still not clear. Genipin, a special UCP2 inhibitor, was added into the cultural medium to explore the roles of UCP2 in human cumulus cells. There were no significant differences in ATP and mitochondrial membrane potential levels in cumulus cells from UCP2 inhibiting groups as compared with the control. The levels of ROS and Mn-SOD were markedly elevated after UCP2 inhibited Genipin. However, the ratio of reduced GSH to GSSG significantly declined after treatment with Genipin. UCP2 inhibition by Genipin also resulted in obvious increase in the active caspase-3, which accompanied the decline of caspase-3 mRNA. The level of progesterone in culture medium declined obviously after Genipin treatment. But there was no significant difference in estradiol concentrations. This study indicated that UCP2 is expressed in human cumulus cells and plays important roles on mediate ROS production, apoptotic process, and steroidogenesis, suggesting UCP2 may be involved in regulation of follicle development and oocyte maturation and quality.
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116
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Cai L, Jeon Y, Yoon JD, Hwang SU, Kim E, Park KM, Kim KJ, Jin MH, Lee E, Kim H, Jeung EB, Hyun SH. The effects of human recombinant granulocyte-colony stimulating factor treatment during in vitro maturation of porcine oocyte on subsequent embryonic development. Theriogenology 2015; 84:1075-87. [PMID: 26194698 DOI: 10.1016/j.theriogenology.2015.06.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Revised: 06/08/2015] [Accepted: 06/13/2015] [Indexed: 12/24/2022]
Abstract
Granulocyte colony-stimulating factor (G-CSF) is required for proliferation, differentiation, and survival of cells. It is also a biomarker of human oocyte developmental competence for embryo implantation. In humans, the G-CSF concentration peaks during the ovulatory phase of the ovarian cycle. In this study, the expressions of G-CSF and its receptor were analyzed by polymerase chain reaction in granulosa cells (GCs), CL, cumulus cells (CCs), and oocytes. Cumulus-oocyte complexes were aspirated from antral follicles of 1 to 3 mm (small follicles) and 4 to 6 mm (medium follicles). Cumulus-oocyte complexes from two kinds of follicles were matured in protein-free maturation medium supplemented with various concentrations of G-CSF (0, 10, and 100 ng/mL). By real-time polymerase chain reaction, the expressions of G-CSF and its receptor were detected in GCs, CL, CCs, and oocytes. Interestingly, the G-CSF transcript levels were significantly lower in oocytes than in the other cell types, whereas the G-CSF receptor transcript levels in oocytes were similar to those in GCs. After 44 hours of IVM, no differences in the rate of nuclear maturation were detected; however, the intracellular reactive oxygen species levels in oocytes from both groups of follicles matured with 10 ng/mL of human recombinant G-CSF (hrG-CSF) groups were significantly lower (P < 0.05). After parthenogenetic activation, the cleavage rates were significantly (P < 0.05) higher in 100 ng/mL hrG-CSF-treated small (63.3%) follicles than in 0, 10 ng/mL hrG-CSF-treated small (38.6% and 49.0%, respectively) follicles and 0 ng/mL hrG-CSF-treated medium (52.1%) follicles, and the cleavage rates were significantly (P < 0.05) higher in 10 ng/mL hrG-CSF-treated medium (76.3%) follicles than in all other groups. The blastocyst formation rates were significantly (P < 0.05) higher in 100 ng/mL hrG-CSF-treated small (31.2%) follicles than in 0 and 10 ng/mL hrG-CSF small (10.4% and 15.6%, respectively) follicles, and the 10 ng/mL hrG-CSF medium (45.7%) follicle was significantly (P < 0.05) higher than in all other groups. The total cell number in blastocysts from the 10 ng/mL hrG-CSF medium (106.5) follicles was significantly (P < 0.05) increased compared to 0, 10, 100 ng/mL hrG-CSF small (55.0, 73.7 and 59.5, respectively) follicles and 0, 100 ng/mL hrG-CSF-treated medium (82.5 and 93.5, respectively) follicles. After IVF, the blastocysts stage was significantly (P < 0.05) increased in 10 ng/mL hrG-CSF-treated medium (36.4%) follicles. Fertilization efficiency was significantly high in 100 ng/mL of small (29.1%) and 10 ng/mL of medium (44.0%) follicles. We also examined the Bcl2 and ERK2 transcript levels and found that they were significantly higher in the small and medium follicle treatment groups. In conclusion, these results indicate that hrG-CSF improve the viability of porcine embryos.
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Affiliation(s)
- Lian Cai
- College of Veterinary Medicine, Chungbuk National University, Cheongju, South Korea
| | - Yubyeol Jeon
- College of Veterinary Medicine, Chungbuk National University, Cheongju, South Korea
| | - Junchul David Yoon
- College of Veterinary Medicine, Chungbuk National University, Cheongju, South Korea
| | - Seon-Ung Hwang
- College of Veterinary Medicine, Chungbuk National University, Cheongju, South Korea
| | - Eunhye Kim
- College of Veterinary Medicine, Chungbuk National University, Cheongju, South Korea
| | - Kyu-Mi Park
- College of Veterinary Medicine, Chungbuk National University, Cheongju, South Korea
| | - Kyu-Jun Kim
- College of Veterinary Medicine, Chungbuk National University, Cheongju, South Korea
| | - Ming Hui Jin
- College of Veterinary Medicine, Chungbuk National University, Cheongju, South Korea
| | - Eunsong Lee
- Department of Theriogenology, College of Veterinary Medicine, Kangwon National University, Kangwon, South Korea
| | - Hyunggee Kim
- Department of Biotechnology, School of Life Sciences and Biotechnology, Korea University, Seoul, South Korea
| | - Eui-Bae Jeung
- College of Veterinary Medicine, Chungbuk National University, Cheongju, South Korea
| | - Sang Hwan Hyun
- College of Veterinary Medicine, Chungbuk National University, Cheongju, South Korea.
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Barkalina N, Jones C, Coward K. Nanomedicine and mammalian sperm: Lessons from the porcine model. Theriogenology 2015; 85:74-82. [PMID: 26116055 DOI: 10.1016/j.theriogenology.2015.05.025] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Revised: 05/05/2015] [Accepted: 05/20/2015] [Indexed: 10/23/2022]
Abstract
Biomedical nanotechnology allows us to engineer versatile nanosized platforms that are comparable in size to biological molecules and intracellular organelles. These platforms can be loaded with large amounts of biological cargo, administered systemically and act at a distance, target specific cell populations, undergo intracellular internalization via endogenous uptake mechanisms, and act as contrast agents or release cargo for therapeutic purposes. Over recent years, nanomaterials have been increasingly viewed as favorable candidates for intragamete delivery. Particularly in the case of sperm, nanomaterial-based approaches have been shown to improve the efficacy of existing techniques such as sperm-mediated gene transfer, loading sperm with exogenous proteins, and tagging sperm for subsequent sex- or function-based sorting. In this short review, we provide an outline of the current state of nanotechnology for biomedical applications in reproductive biology and present highlights from a series of our studies evaluating the use of specialized silica nanoparticles in boar sperm as a potential delivery vehicle into mammalian gametes. The encouraging data obtained already from the porcine model in our laboratory have formed the basis for ethical approval of similar experiments in human sperm, thereby bringing us a step closer toward the potential use of this novel technology in the clinical environment.
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Affiliation(s)
- Natalia Barkalina
- Nuffield Department of Obstetrics and Gynaecology, University of Oxford, Level 3, Women's Centre, John Radcliffe Hospital, Oxford, UK.
| | - Celine Jones
- Nuffield Department of Obstetrics and Gynaecology, University of Oxford, Level 3, Women's Centre, John Radcliffe Hospital, Oxford, UK
| | - Kevin Coward
- Nuffield Department of Obstetrics and Gynaecology, University of Oxford, Level 3, Women's Centre, John Radcliffe Hospital, Oxford, UK
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118
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Shao L, Chian RC, Xu Y, Yan Z, Zhang Y, Gao C, Gao L, Liu J, Cui Y. Genomic expression profiles in cumulus cells derived from germinal vesicle and MII mouse oocytes. Reprod Fertil Dev 2015; 28:RD15077. [PMID: 25989843 DOI: 10.1071/rd15077] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2015] [Accepted: 04/21/2015] [Indexed: 01/25/2023] Open
Abstract
Cumulus cells (CCs) are distinct from other granulosa cells and the mutual communication between CCs and oocytes is essential for the establishment of oocyte competence. In the present study we assessed genomic expression profiles in mouse CCs before and after oocyte maturation in vitro. Microarray analysis revealed significant changes in gene expression in CCs between the germinal vesicle (GV) and metaphase II (MII) stages, with 2615 upregulated and 2808 downregulated genes. Genes related to epidermal growth factor, extracellular matrix (Ptgs2, Ereg, Tnfaip6 and Efemp1), mitochondrial metabolism (Fdx1 and Aifm2), gap junctions and the cell cycle (Gja1, Gja4, Ccnd2, Ccna2 and Ccnb2) were highlighted as being differentially expressed between the two development stages. Real-time polymerase chain reaction confirmed the validity and reproducibility of the results for the selected differentially expressed genes. Similar expression patterns were identified by western blot analysis for some functional proteins, including EFEMP1, FDX1, GJA1 and CCND2, followed by immunofluorescence localisation. These genes may be potential biomarkers for oocyte developmental competence following fertilisation and will be investigated further in future studies.
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119
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Oi A, Tasaki H, Munakata Y, Shirasuna K, Kuwayama T, Iwata H. Effects of reaggregated granulosa cells and oocytes derived from early antral follicles on the properties of oocytes grown in vitro. J Reprod Dev 2015; 61:191-7. [PMID: 25740588 PMCID: PMC4498376 DOI: 10.1262/jrd.2014-123] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
In this study, we examined the effects of reconstructed oocyte-granulosa cell complexes (OGCs) on the development of porcine oocytes derived from early antral follicles (EAFs; 0.5-0.7 mm in diameter). When denuded oocytes were cocultured with granulosa cells derived from other EAFs, the oocytes and granulosa cells aggregated to form OGCs after 2 days of culture. After 14 days of culture, we compared cell number, oocyte diameter, and oocyte chromatin configuration in unmanipulated (natural) OGCs, reconstructed OGCs, and OGCs collected from antral follicles (AFs, 3.0-6.0 mm in diameter). The diameters of oocytes from reconstructed OGCs grown in vitro were not different from those of oocytes from natural OGCs, although they were significantly smaller than those of oocytes from antral follicle (AF) OGCs. Oocyte chromatin configuration did not differ among the 3 OGC groups, but the oocyte nuclear maturation rate was lower in the reconstructed OGCs and higher in the AF OGCs. However, when the in vitro culture period for the reconstructed OGCs was extended by 2 days, the nuclear maturation rate of oocytes from reconstructed OGCs was similar to that of oocytes from natural OGCs. In addition, blastocysts were successfully obtained from oocytes from reconstructed OGCs. In conclusion, we established an innovative culture method that allows oocytes and granulosa cells from EAFs to reaggregate as reconstructed OGCs, which yield oocytes with the ability to develop to the blastocyst stage.
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Affiliation(s)
- Ayano Oi
- Tokyo University of Agriculture, Kanagawa 243-0034, Japan
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120
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Tepekoy F, Ustunel I, Akkoyunlu G. Protein kinase C isoforms α, δ and ε are differentially expressed in mouse ovaries at different stages of postnatal development. J Ovarian Res 2014; 7:117. [PMID: 25491605 PMCID: PMC4271327 DOI: 10.1186/s13048-014-0117-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2014] [Accepted: 11/29/2014] [Indexed: 11/11/2022] Open
Abstract
Background The protein kinase C (PKC) is a family of serine/threonine kinases that consists of 12 different isoforms. Since PKC isoform expressions are known to be specific for different cell types and postnatal developmental stages, we aimed to determine immunolocalizations and protein expression levels of different PKC isoforms in pre-pubertal, pubertal and adult mouse ovaries. Methods Ovaries were obtained from postnatal day 1 (PND1) and PND7 of pre-pubertal, PND21 of pubertal and PND60 of adult mice. Immunolocalizations of PKCα, PKCδ and PKCε isoforms were determined and immunostainings in different cellular components of all follicular stages were evaluated by H-Score. PKCα, PKCδ and PKCε protein expression levels were determined by Western blot. The bands were quantified via ImageJ software. The data obtained from H-Score and ImageJ evaluations were analyzed by ANOVA statistical test. Results PKCα immunostainings were more intense in oocytes when compared to granulosa and theca cells at different follicular stages of all groups. The Western blot analysis revealed that PKCα expression was significantly higher in PND60 adult ovaries. Conversely, PKCδ immunostainings were more intense in granulosa cells. According to the Western blot analysis, PKCδ protein expression was also higher in PND60 and significantly lower in PND1 ovaries. PKCε immunostaining was more apparent in oocytes. PKCε protein expression was significantly higher in adult PND60 and pubertal PND21 ovaries when compared to pre-pubertal PND7 and PND1 ovaries. Interestingly, PKCε immunostaining was significantly higher in primordial follicles, though PKCα and PKCδ immunostainings were more apparent in larger follicles. PKCα immunostainings of corpora lutea (CL) were significantly higher when compared to follicles in PND60 ovaries. Conclusions This study demonstrates that PKCα, PKCδ and PKCε isoforms are differentially expressed in particular cellular components of pre-pubertal, pubertal and adult mouse ovarian follicles. Therefore, we suggest that each PKC isoform has unique functions that are controlled by gonadotropin dependent mechanisms during follicular growth, oocyte maturation, ovulation and luteinization.
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121
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Agarwal A, Durairajanayagam D, du Plessis SS. Utility of antioxidants during assisted reproductive techniques: an evidence based review. Reprod Biol Endocrinol 2014; 12:112. [PMID: 25421286 PMCID: PMC4258799 DOI: 10.1186/1477-7827-12-112] [Citation(s) in RCA: 120] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2014] [Accepted: 11/06/2014] [Indexed: 11/10/2022] Open
Abstract
Assisted reproductive technology (ART) is a common treatment of choice for many couples facing infertility issues, be it due to male or female factor, or idiopathic. Employment of ART techniques, however, come with its own challenges as the in vitro environment is not nearly as ideal as the in vivo environment, where reactive oxygen species (ROS) build-up leading to oxidative stress is kept in check by the endogenous antioxidants system. While physiological amounts of ROS are necessary for normal reproductive function in vivo, in vitro manipulation of gametes and embryos exposes these cells to excessive ROS production either by endogenous or exogenous environmental factors. In this review, we discuss the sources of ROS in an in vitro clinical setting and the influence of oxidative stress on gamete/embryo quality and the outcome of IVF/ICSI. Sources of ROS and different strategies of overcoming the excessive generation of ROS in vitro are also highlighted. Endogenously, the gametes and the developing embryo become sources of ROS. Multiple exogenous factors act as potential sources of ROS, including exposure to visible light, composition of culture media, pH and temperature, oxygen concentration, centrifugation during spermatozoa preparation, ART technique involving handling of gamete/embryo and cryopreservation technique (freeze/thawing process). Finally, the use of antioxidants as agents to minimize ROS generation in the in vitro environment and as oral therapy is highlighted. Both enzymatic and non-enzymatic antioxidants are discussed and the outcome of studies using these antioxidants as oral therapy in the male or female or its use in vitro in media is presented. While results of studies using certain antioxidant agents are promising, the current body of evidence as a whole suggests the need for further well-designed and larger scale randomized controlled studies, as well as research to minimize oxidative stress conditions in the clinical ART setting.
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Affiliation(s)
- Ashok Agarwal
- Center for Reproductive Medicine, Glickman Urological & Kidney Institute, Cleveland Clinic, Cleveland, OH 44195 USA
| | - Damayanthi Durairajanayagam
- Discipline of Physiology, Faculty of Medicine, MARA University of Technology, Sungai Buloh, Selangor 47000 Malaysia
| | - Stefan S du Plessis
- Center for Reproductive Medicine, Glickman Urological & Kidney Institute, Cleveland Clinic, Cleveland, OH 44195 USA
- Division of Medical Physiology, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, 7505 South Africa
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122
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Naringenin (NAR) and 8-prenylnaringenin (8-PN) reduce the developmental competence of porcine oocytes in vitro. Reprod Toxicol 2014; 49:1-11. [DOI: 10.1016/j.reprotox.2014.05.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Revised: 05/12/2014] [Accepted: 05/28/2014] [Indexed: 12/31/2022]
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123
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Lolicato F, Brouwers JF, de Lest CHAV, Wubbolts R, Aardema H, Priore P, Roelen BAJ, Helms JB, Gadella BM. The cumulus cell layer protects the bovine maturing oocyte against fatty acid-induced lipotoxicity. Biol Reprod 2014; 92:16. [PMID: 25297544 DOI: 10.1095/biolreprod.114.120634] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Mobilization of fatty acids from adipose tissue during metabolic stress increases the amount of free fatty acids in blood and follicular fluid and is associated with impaired female fertility. In a previous report, we described the effects of the three predominant fatty acids in follicular fluid (saturated palmitate and stearate and unsaturated oleate) on oocyte maturation and quality. In the current study, the effects of elevated fatty acid levels on cumulus cells were investigated. In a dose-dependent manner, the three fatty acids induced lipid storage in cumulus cells accompanied by an enhanced immune labeling of perilipin-2, a marker for lipid droplets. Lipidomic analysis confirmed incorporation of the administered fatty acids into triglyceride, resulting in a 3- to 6-fold increase of triglyceride content. In addition, palmitate selectively induced ceramide formation, which has been implicated in apoptosis. Indeed, of the three fatty acids tested, palmitate induced reactive oxygen species formation, caspase 3 activation, and mitochondria deterioration, leading to degeneration of the cumulus cell layers. This effect could be mimicked by addition of the ceramide-C2 analog and could be inhibited by the ceramide synthase inhibitor fumonisin-B1. Interfering with the intactness of the cumulus cell layers, either by mechanical force or by palmitate treatment, resulted in enhanced uptake of lipids in the oocyte and increased radical formation. Our results show that cumulus cells act as a barrier, protecting oocytes from in vitro induced lipotoxic effects. We suggest that this protective function of the cumulus cell layers is important for the developmental competence of the oocyte. The relevance of our findings for assisted reproduction technologies is discussed.
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Affiliation(s)
- Francesca Lolicato
- Department of Biochemistry and Cell Biology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, the Netherlands
| | - Jos F Brouwers
- Department of Biochemistry and Cell Biology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, the Netherlands
| | - Chris H A van de Lest
- Department of Biochemistry and Cell Biology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, the Netherlands
| | - Richard Wubbolts
- Department of Biochemistry and Cell Biology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, the Netherlands
| | - Hilde Aardema
- Department of Farm Animal Health, Faculty of Veterinary Medicine, Utrecht University, Utrecht, the Netherlands
| | - Paola Priore
- Department of Biochemistry and Cell Biology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, the Netherlands Laboratory of Biochemistry, Department of Biological and Environmental Sciences and Technologies, University of Salento, Lecce, Italy
| | - Bernard A J Roelen
- Department of Farm Animal Health, Faculty of Veterinary Medicine, Utrecht University, Utrecht, the Netherlands
| | - J Bernd Helms
- Department of Biochemistry and Cell Biology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, the Netherlands
| | - Bart M Gadella
- Department of Biochemistry and Cell Biology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, the Netherlands Department of Farm Animal Health, Faculty of Veterinary Medicine, Utrecht University, Utrecht, the Netherlands,
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124
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Egea RR, Puchalt NG, Escrivá MM, Varghese AC. OMICS: Current and future perspectives in reproductive medicine and technology. J Hum Reprod Sci 2014; 7:73-92. [PMID: 25191020 PMCID: PMC4150148 DOI: 10.4103/0974-1208.138857] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2013] [Revised: 01/14/2014] [Accepted: 02/26/2014] [Indexed: 12/16/2022] Open
Abstract
Many couples present fertility problems at their reproductive age, and although in the last years, the efficiency of assisted reproduction techniques has increased, these are still far from being 100% effective. A key issue in this field is the proper assessment of germ cells, embryos and endometrium quality, in order to determine the actual likelihood to succeed. Currently available analysis is mainly based on morphological features of oocytes, sperm and embryos and although these strategies have improved the results, there is an urgent need of new diagnostic and therapeutic tools. The emergence of the - OMICS technologies (epigenomics, genomics, transcriptomics, proteomics and metabolomics) permitted the improvement on the knowledge in this field, by providing with a huge amount of information regarding the biological processes involved in reproductive success, thereby getting a broader view of complex biological systems with a relatively low cost and effort.
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Affiliation(s)
- Rocío Rivera Egea
- Andrology Laboratory and Semen Bank, Instituto Universitario, IVI Valencia, Spain
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125
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Tong XH, Xu B, Zhang YW, Liu YS, Ma CH. Research resources: comparative microRNA profiles in human corona radiata cells and cumulus oophorus cells detected by next-generation small RNA sequencing. PLoS One 2014; 9:e106706. [PMID: 25188034 PMCID: PMC4154750 DOI: 10.1371/journal.pone.0106706] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2014] [Accepted: 07/31/2014] [Indexed: 12/18/2022] Open
Abstract
During folliculogenesis, cumulus cells surrounding the oocyte differentiate into corona radiata cells (CRCs) and cumulus oophorus cells (COCs), which are involved in gonadal steroidogenesis and the development of germ cells. Several studies suggested that microRNAs (miRNAs) play an important regulatory role at the post-transcriptional level in cumulus cells. However, comparative miRNA profiles and associated processes in human CRCs and COCs have not been reported before. In this study, miRNA profiles were obtained from CRCs and COCs using next generation sequencing in women undergoing controlled ovarian stimulation for IVF. A total of 785 and 799 annotated miRNAs were identified in CRCs and COCs, while high expression levels of six novel miRNAs were detected both in CRCs and in COCs. In addition, different expression patterns in CRCs and COCs were detected in 72 annotated miRNAs. To confirm the miRNA profile in COCs and CRCs, quantitative real-time PCR was used to validate the expression of annotated miRNAs, differentially expressed miRNAs, and novel miRNAs. The miRNAs in the let-7 family were found to be involved in the regulation of a broad range of biological processes in both cumulus cell populations, which was accompanied by a large amount of miRNA editing. Bioinformatics analysis showed that amino acid and energy metabolism were targeted significantly by miRNAs that were differentially expressed between CRCs and COCs. Our work extends the current knowledge of the regulatory role of miRNAs and their targeted pathways in folliculogenesis, and provides novel candidates for molecular biomarkers in the research of female infertility.
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Affiliation(s)
- Xian-Hong Tong
- Institute of Immunology, Medical College of Shandong University, Ji'nan, China
- Center for Reproductive Medicine, Anhui Provincial Hospital Affiliated with Anhui Medical University, Hefei, China
| | - Bo Xu
- Center for Reproductive Medicine, Anhui Provincial Hospital Affiliated with Anhui Medical University, Hefei, China
- * E-mail: (XHT); (CHM)
| | - Yuan-Wei Zhang
- Hefei National Laboratory for Physical Sciences at Microscale and School of Life Sciences, University of Science and Technology of China, Hefei, China
| | - Yu-Sheng Liu
- Center for Reproductive Medicine, Anhui Provincial Hospital Affiliated with Anhui Medical University, Hefei, China
| | - Chun-Hong Ma
- Institute of Immunology, Medical College of Shandong University, Ji'nan, China
- * E-mail: (XHT); (CHM)
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Chaffin CL, Latham KE, Mtango NR, Midic U, VandeVoort CA. Dietary sugar in healthy female primates perturbs oocyte maturation and in vitro preimplantation embryo development. Endocrinology 2014; 155:2688-95. [PMID: 24731100 PMCID: PMC4060180 DOI: 10.1210/en.2014-1104] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The consumption of refined sugars continues to pose a significant health risk. However, nearly nothing is known about the effects of sugar intake by healthy women on the oocyte or embryo. Using rhesus monkeys, we show that low-dose sucrose intake over a 6-month period has an impact on the oocyte with subsequent effects on the early embryo. The ability of oocytes to resume meiosis was significantly impaired, although the differentiation of the somatic component of the ovarian follicle into progesterone-producing cells was not altered. Although the small subset of oocytes that did mature were able to be fertilized in vitro and develop into preimplantation blastocysts, there were >1100 changes in blastocyst gene expression. Because sucrose treatment ended before fertilization, the effects of sugar intake by healthy primates are concluded to be epigenetic modifications to the immature oocyte that are manifest in the preimplantation embryo.
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Affiliation(s)
- Charles L Chaffin
- Department of Obstetrics, Gynecology, and Reproductive Sciences (C.L.C.), University of Maryland School of Medicine, Baltimore, Maryland 21210; Department of Animal Science (K.E.L., U.M.), Michigan State University, East Lansing, Michigan 48824; The Fels Institute for Cancer Research and Molecular Biology and Department of Biochemistry (N.R.M.), Temple University School of Medicine, Philadelphia, Pennsylvania 19140; and California National Primate Research Center and Department of Obstetrics and Gynecology (C.A.V.), University of California, Davis, California 95616
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127
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Sequential (hFSH + recFSH) vs homogenous (hFSH or recFSH alone) stimulation: clinical and biochemical (cumulus cell gene expression) aspects. J Assist Reprod Genet 2014; 31:657-65. [PMID: 24639041 DOI: 10.1007/s10815-014-0208-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2013] [Accepted: 02/28/2014] [Indexed: 01/16/2023] Open
Abstract
FSH is a key hormone in the regulation of follicular development. Together with the EGF network, these molecules mediate oocyte maturation and competence in preparation for the action of LH. FSH isoforms regulate distinct biological pathways and have specific effects on granulosa cell function and maturation of the ovarian follicle. Their dynamic interactions occur during the follicular cycle; short-living forms are predominant in the pre-ovulatory phase, whereas long-acting molecules characterize the luteal-follicular transition. Recombinant FSH (rFSH) molecules have a reduced number of isoforms and are less acidic, with a shorter half-life. We have investigated sequential stimulation, comparing hFSH + rFSH, vs. rFSH alone and hFSH alone for the entire stimulation phase. Sequential stimulation leads to an E2 per MII oocyte ratio that is much lower than is seen during treatment with the two drugs individually. Although there is a positive tendency in favor of the sequential treatment, there was no significant difference in pregnancy rates, even taking frozen embryos into consideration. The cumulus cell transcriptome varies considerably between the treatments, although with no clear significance. When comparing pregnant vs. non-pregnant patients, in general a decrease in mRNA expression can be observed in the pregnant patients, especially in expression of folic acid receptor 1 and ovostatin 2. This indicates that material has been transferred from CC to the oocyte. However, a common observation in the literature is that variations in the transcriptome of the cumulus cells are highly dependent upon the patient genotype; the potential for applying this strategy as a basis for selecting embryos is, at the very least, questionable.
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128
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Bellver J, Mundi M, Esteban FJ, Mosquera S, Horcajadas JA. ’-omics’ technology and human reproduction: reproductomics. ACTA ACUST UNITED AC 2014. [DOI: 10.1586/eog.12.48] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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129
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Lin ZL, Li YH, Xu YN, Wang QL, Namgoong S, Cui XS, Kim NH. Effects of Growth Differentiation Factor 9 and Bone Morphogenetic Protein 15 on thein vitroMaturation of Porcine Oocytes. Reprod Domest Anim 2013; 49:219-27. [DOI: 10.1111/rda.12254] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2013] [Accepted: 10/06/2013] [Indexed: 11/26/2022]
Affiliation(s)
- Z-L Lin
- Department of Animal Sciences; Chungbuk National University; Cheongju Korea
| | - Y-H Li
- Department of Animal Sciences; Chungbuk National University; Cheongju Korea
| | - Y-N Xu
- Department of Animal Sciences; Chungbuk National University; Cheongju Korea
| | - Q-L Wang
- Department of Animal Sciences; Chungbuk National University; Cheongju Korea
| | - S Namgoong
- Department of Animal Sciences; Chungbuk National University; Cheongju Korea
| | - X-S Cui
- Department of Animal Sciences; Chungbuk National University; Cheongju Korea
| | - N-H Kim
- Department of Animal Sciences; Chungbuk National University; Cheongju Korea
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130
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Huang X, Hao C, Shen X, Zhang Y, Liu X. RUNX2, GPX3 and PTX3 gene expression profiling in cumulus cells are reflective oocyte/embryo competence and potentially reliable predictors of embryo developmental competence in PCOS patients. Reprod Biol Endocrinol 2013; 11:109. [PMID: 24279306 PMCID: PMC4222840 DOI: 10.1186/1477-7827-11-109] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2013] [Accepted: 11/23/2013] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Polycystic ovary syndrome (PCOS) is a common endocrine and metabolic disorder in women. The developmental competence of oocytes and embryos in PCOS patients is reduced to a certain extent (comparing to non-PCOS patients, the high quality embryo rate was decreased by 16% from the data of our centre) during the in vitro fertilization (IVF) process. Cross-talk between the oocyte and cumulus cells is critical for oocyte maturation and embryo competence. In this study, we have evaluated the transcription of specific genes in cumulus cells harvested from pre-ovulatory follicles of PCOS patients before IVF, according to individual oocyte nuclear maturity and developmental competence. Seven genes (RUNX2, PSAT1, ADAMTS9, CXCL1, CXCL2, CXCL3, and ITGB5) were targeted from our previous cDNA microarray data which isolated genes related to oocyte nuclear maturation in PCOS patients. Two additional genes which had been found to be associated with oocyte maturation or embryo quality in non-PCOS patients (GPX3 and PTX3) were also studied. METHODS The mRNA expression levels of cumulus cells were detected by qRT- PCR. RESULTS Consistent with our previous cDNA microarray data, with the exception of GPX3 and PTX3, the selected 7 genes were related to oocyte nuclear maturation in PCOS patients. Noticeably, the expression level of RUNX2 was lower in cumulus cells derived from oocytes that could develop into blastocysts than the level of expression from oocytes that could not. The PTX3 expression level was significantly lower in cumulus cells from oocytes with two normal pronuclei than that from oocytes that formed >2 pronuclei (MPN) after fertilization. GPX3 mRNA levels were decreased in cumulus cells isolated from oocytes that developed into blastocysts with high potential development competence. CONCLUSIONS Several cumulus cell genes were associated with oocyte maturation, fertilization and embryo quality in PCOS patients. RUNX2 and GPX3 are candidate genetic markers in the monitoring of embryo quality for PCOS patients, whereas PTX3 mainly played a role in fertilization process. Together with morphological evaluation, cumulus cells genes may serve as biomarkers of oocyte and embryo selection during the IVF process for PCOS patients and may advance our understanding of PCOS.
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Affiliation(s)
- Xin Huang
- Reproductive Medicine Centre, Affiliated Hospital of Qingdao Medical University, Yuhuangding Hospital of Yantai, 20 Yuhuangding Road East, Yantai, Shandong, China
- CapitalBio Corporation Center (Biochip National Engineering Research Center), Yantai Branch Center, 20 Yuhuangding Road East, Yantai, Shandong, China
| | - Cuifang Hao
- Reproductive Medicine Centre, Affiliated Hospital of Qingdao Medical University, Yuhuangding Hospital of Yantai, 20 Yuhuangding Road East, Yantai, Shandong, China
| | - Xiaofang Shen
- Reproductive Medicine Centre, Affiliated Hospital of Qingdao Medical University, Yuhuangding Hospital of Yantai, 20 Yuhuangding Road East, Yantai, Shandong, China
| | - Yuhua Zhang
- Reproductive Medicine Centre, Affiliated Hospital of Qingdao Medical University, Yuhuangding Hospital of Yantai, 20 Yuhuangding Road East, Yantai, Shandong, China
| | - Xiaoyan Liu
- Reproductive Medicine Centre, Affiliated Hospital of Qingdao Medical University, Yuhuangding Hospital of Yantai, 20 Yuhuangding Road East, Yantai, Shandong, China
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131
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Qiu M, Liu J, Han C, Wu B, Yang Z, Su F, Quan F, Zhang Y. The Influence of Ovarian Stromal/Theca Cells During
In Vitro
Culture on Steroidogenesis, Proliferation and Apoptosis of Granulosa Cells Derived from the Goat Ovary. Reprod Domest Anim 2013; 49:170-6. [DOI: 10.1111/rda.12256] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2013] [Accepted: 10/13/2013] [Indexed: 11/29/2022]
Affiliation(s)
- M Qiu
- College of Veterinary Medicine Northwest A & F University Yangling Shaanxi China
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture Northwest A&F University Yangling Shaanxi China
| | - J Liu
- College of Veterinary Medicine Northwest A & F University Yangling Shaanxi China
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture Northwest A&F University Yangling Shaanxi China
| | - C Han
- College of Veterinary Medicine Northwest A & F University Yangling Shaanxi China
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture Northwest A&F University Yangling Shaanxi China
| | - B Wu
- Arizona Center for Reproductive Endocrinology and Infertility Tucson AZ USA
| | - Z Yang
- College of Veterinary Medicine Northwest A & F University Yangling Shaanxi China
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture Northwest A&F University Yangling Shaanxi China
| | - F Su
- College of Veterinary Medicine Northwest A & F University Yangling Shaanxi China
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture Northwest A&F University Yangling Shaanxi China
| | - F Quan
- College of Veterinary Medicine Northwest A & F University Yangling Shaanxi China
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture Northwest A&F University Yangling Shaanxi China
| | - Y Zhang
- College of Veterinary Medicine Northwest A & F University Yangling Shaanxi China
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture Northwest A&F University Yangling Shaanxi China
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Inhibitory effects of controlled ovarian stimulation on the expression of GDF9 and BMP15 in oocytes from women with PCOS. J Assist Reprod Genet 2013; 30:1313-8. [PMID: 23912750 DOI: 10.1007/s10815-013-0041-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2013] [Accepted: 06/26/2013] [Indexed: 12/20/2022] Open
Abstract
PURPOSE To explore the effects of controlled ovarian stimulation (COS) on the expression of growth differentiation factor 9 (GDF9) and bone morphogenetic protein 15 (BMP15) in oocytes and granulosa cells from patients with or without polycystic ovary syndrome (PCOS). METHODS This case-control study was conducted in the university affiliated hospital. The study comprised four groups of patients: eighteen PCOS patients with COS (stimulated-PCOS) and twenty-two PCOS patients without COS (unstimulated-PCOS), twenty-nine normal ovulatory women with COS (stimulated-control) and twenty-eight normal ovulatory women without COS (unstimulated-control). The oocytes and granulosa cells were collected and the abundance of GDF9 and BMP15 mRNA in the cells were detected by nested quantitative real-time PCR. RESULTS The abundance of GDF9 and BMP15 mRNA was significantly higher both in oocytes (P < 0.01, P < 0.001, respectively) and GCs (P < 0.01, P < 0.05, respectively) from stimulated-control group than in unstimulated-control group. However, there was no significant difference for GDF9 or BMP15 mRNA in oocytes from stimulated-PCOS goup compared with unstimulated-PCOS group (P > 0.05, P > 0.05, respectively). The abundance of GDF9 mRNA was significantly lower (P < 0.01) while the abundance of BMP15 mRNA was significantly higher (P < 0.001) in GCs from stimulated-PCOS group than in unstimulated-PCOS group. CONCLUSIONS The controlled ovarian stimulation can promote the expression of GDF9 and BMP15 both in oocytes and GCs from normal ovulatory women. However, the stimulating effects may be inhibited in oocytes from PCOS patients, which subsequently impair cytoplasm maturation and lead to poor oocyte quality.
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Velthut-Meikas A, Simm J, Tuuri T, Tapanainen JS, Metsis M, Salumets A. Research resource: small RNA-seq of human granulosa cells reveals miRNAs in FSHR and aromatase genes. Mol Endocrinol 2013; 27:1128-41. [PMID: 23660593 DOI: 10.1210/me.2013-1058] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The granulosa cells in the mammalian ovarian follicle respond to gonadotropin signaling and are involved in the processes of folliculogenesis and oocyte maturation. Studies on gene expression and regulation in human granulosa cells are of interest due to their potential for estimating the oocyte viability and in vitro fertilization success. However, the posttranscriptional gene expression studies on micro-RNA (miRNA) level in the human ovary have been scarce. The current study determined the miRNA profile by deep sequencing of the 2 intrafollicular somatic cell types: mural and cumulus granulosa cells (MGCs and CGCs, respectively) isolated from women undergoing controlled ovarian stimulation and in vitro fertilization. Altogether, 936 annotated and 9 novel miRNAs were identified. Ninety of the annotated miRNAs were differentially expressed between MGCs and CGCs. Bioinformatic prediction revealed that TGFβ, ErbB signaling, and heparan sulfate biosynthesis were targeted by miRNAs in both granulosa cell populations, whereas extracellular matrix remodeling, Wnt, and neurotrophin signaling pathways were enriched among miRNA targets in MGCs. Two of the nine novel miRNAs found were of intronic origin: one from the aromatase and the other from the FSH receptor gene. The latter miRNA was predicted to target the activin signaling pathway. In addition to revealing the genome-wide miRNA signature in human granulosa cells, our results suggest that posttranscriptional regulation of gene expression by miRNAs could play an important role in the modification of gonadotropin signaling. miRNA expression studies could therefore lead to new prognostic markers in assisted reproductive technologies.
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Affiliation(s)
- Agne Velthut-Meikas
- Competence Centre on Reproductive Medicine and Biology, Tiigi 61B, 50410 Tartu, Estonia.
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Pregnancy prediction in single embryo transfer cycles after ICSI using QPCR: validation in oocytes from the same cohort. PLoS One 2013; 8:e54226. [PMID: 23573182 PMCID: PMC3616108 DOI: 10.1371/journal.pone.0054226] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2012] [Accepted: 12/11/2012] [Indexed: 12/19/2022] Open
Abstract
Cumulus cell (CC) gene expression is being explored as an additional method to morphological scoring to choose the embryo with the highest chance to pregnancy. In 47 ICSI patients with single embryo transfer (SET), from which individual CC samples had been stored, 12 genes using QPCR were retrospectively analyzed. The CC samples were at the same occasion also used to validate a previously obtained pregnancy prediction model comprising three genes (ephrin-B2 (EFNB2), calcium/calmodulin-dependent protein kinase ID, stanniocalcin 1). Latter validation yielded a correct pregnant/non-pregnant classification in 72% of the samples. Subsequently, 9 new genes were analyzed on the same samples and new prediction models were built. Out of the 12 genes analyzed a combination of the best predictive genes was obtained by stepwise multiple regression. One model retained EFNB2 in combination with glutathione S-transferase alpha 3 and 4, progesterone receptor and glutathione peroxidase 3, resulting in 93% correct predictions when 3 patient and treatment cycle characteristics were included into the model. This large patient group allowed to do an intra-patient analysis for 7 patients, an analysis mimicking the methodology that would ultimately be used in clinical routine. CC related to a SET that did not give pregnancy and CC related to their subsequent frozen/thawed embryos which ended in pregnancy were analyzed. The models obtained in the between-patient analysis were used to rank the oocytes within-patients for their chance to pregnancy and resulted in 86% of correct predictions. In conclusion, prediction models built on selected quantified transcripts in CC might help in the decision making process which is currently only based on subjective embryo morphology scoring. The validity of our current models for routine application still need prospective assessment in a larger and more diverse patient population allowing intra-patient analysis.
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135
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Gatta V, Tatone C, Ciriminna R, Vento M, Franchi S, d'Aurora M, Sperduti S, Cela V, Borzì P, Palermo R, Stuppia L, Artini PG. Gene expression profiles of cumulus cells obtained from women treated with recombinant human luteinizing hormone + recombinant human follicle-stimulating hormone or highly purified human menopausal gonadotropin versus recombinant human follicle-stimulating hormone alone. Fertil Steril 2013; 99:2000-8.e1. [PMID: 23472943 DOI: 10.1016/j.fertnstert.2013.01.150] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2012] [Revised: 01/28/2013] [Accepted: 01/28/2013] [Indexed: 10/27/2022]
Abstract
OBJECTIVE To evaluate cumulus cell (CC) expression profile modulation after different stimulation protocols. DESIGN CCs transcriptome variations were evaluated by microarray in patients undergoing different treatments for ovarian stimulation, namely, r-hLH + r-hFSH and hp-hMG, compared with a control group treated with r-hFSH. SETTING Healthy patients undergoing assisted reproduction protocols. PATIENT(S) Sixteen healthy women with regular cycles and tubal disease or unexplained infertility. INTERVENTION(S) Four patients received hp-hMG, four received r-hFSH + r-hLH, and eight received r-hFSH daily. Aspiration of the oocytes was performed 36 hours after hCG administration. Only samples derived from cumulus-oocyte complexes containing mature oocytes showing polar body were processed. MAIN OUTCOME MEASURE(S) Comparison of genes differentially expressed in both treatment groups with the use of a hierarchic clustering analysis. RESULT(S) Data clustering analysis allowed detection of four clusters containing genes differentially expressed in both treatment groups compared with control. Functional analysis of the affected transcripts revealed genes involved in oocyte development and maturation. CONCLUSION(S) r-hLH and hCG, though acting on the same receptor, produce a differential activation of intracellular pathways. It can be hypothesized that this effect depends on their different structures and specific binding affinity for the receptor.
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Affiliation(s)
- Valentina Gatta
- Department of Psychology, Humanities, and Territory Sciences, G. d'Annunzio University, Chieti, Italy.
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Identification of a novel gene set in human cumulus cells predictive of an oocyte's pregnancy potential. Fertil Steril 2013. [DOI: 10.1016/j.fertnstert.2012.10.041] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Chen H, Kui C, Chan HC. Ca2+ mobilization in cumulus cells: Role in oocyte maturation and acrosome reaction. Cell Calcium 2013; 53:68-75. [DOI: 10.1016/j.ceca.2012.11.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2012] [Revised: 11/02/2012] [Accepted: 11/03/2012] [Indexed: 10/27/2022]
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Kashir J, Jones C, Child T, Williams SA, Coward K. Viability Assessment for Artificial Gametes: The Need for Biomarkers of Functional Competency1. Biol Reprod 2012; 87:114. [DOI: 10.1095/biolreprod.112.103853] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
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139
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Genomic assessment of human cumulus cell marker genes as predictors of oocyte developmental competence: impact of various experimental factors. PLoS One 2012; 7:e40449. [PMID: 22848380 PMCID: PMC3407221 DOI: 10.1371/journal.pone.0040449] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2012] [Accepted: 06/07/2012] [Indexed: 12/01/2022] Open
Abstract
Background Single embryo transfer (SET) is the most successful way to reduce the frequency of multiple pregnancies following in vitro fertilisation. However, selecting the embryo for SET with the highest chances of pregnancy remains a difficult challenge since morphological and kinetics criteria provide poor prediction of both developmental and implantation ability. Partly through the expression of specific genes, the oocyte-cumulus interaction helps the oocyte to acquire its developmental competence. Our aim was therefore to identify at the level of cumulus cells (CCs) genes related to oocyte developmental competence. Methodology/Principal Findings 197 individual CCs were collected from 106 patients undergoing an intra-cytoplasmic sperm injection procedure. Gene expression of CCs was studied using microarray according to the nuclear maturity of the oocyte (immature vs. mature oocyte) and to the developmental competence of the oocyte (ability to reach the blastocyst stage after fertilisation). Microarray study was followed by a meta-analysis of the behaviour of these genes in other datasets available in Gene Expression Omnibus which showed the consistency of this list of genes. Finally, 8 genes were selected according to oocyte developmental competence from the 308 differentially expressed genes (p<0.0001) for further validation by quantitative PCR (qPCR). Three of these 8 selected genes were validated as potential biomarkers (PLIN2, RGS2 and ANG). Experimental factors such as inter-patient and qPCR series variability were then assessed using the Generalised Linear Mixed Model procedure, and only the expression level of RGS2 was confirmed to be related to oocyte developmental competence. The link between biomarkers and pregnancy was finally evaluated and level of RGS2 expression was also correlated with clinical pregnancy. Conclusion/Significance RGS2, known as a regulator of G protein signalling, was the only gene among our 8 selected candidates biomarkers of oocyte competence to cover many factors of variability, including inter-patient factors and experimental conditions.
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Overexpression of ribosomal RNA in cumulus cells of patients with polycystic ovary syndrome. J Assist Reprod Genet 2012; 29:1141-5. [PMID: 22772454 DOI: 10.1007/s10815-012-9827-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2012] [Accepted: 06/26/2012] [Indexed: 01/18/2023] Open
Abstract
OBJECTIVE To evaluate the level of ribosomal RNA (rRNA) in cumulus cells (CCs) from women with polycystic ovary syndrome (PCOS) undergoing ICSI. MATERIALS AND METHODS The study population included three healthy oocyte donors (control) and three patients with PCOS. RNA expression in CCs was assessed using quantitative real-time PCR assay to measure the pre-rRNA transcripts (5'ETS region), 18 S, 5.8 S and 28 S rRNA. RESULTS The level of 18 S rRNA is 3.9 times higher (p = 0.036) and the level of 5.8 S rRNA is 2.9 times higher (p = 0.049) in CCs of PCOS patients than in CCs of healthy women. The fold change in expression of 28 S rRNA in CCs of PCOS patients also exceeds that in the control group, but did not reach a statistical significance (p = 0.342). CONCLUSION Our observations support the idea that CCs of PCOS patients contain comparatively more ribosomes that CCs of healthy oocyte donors that may indicate a higher proliferation rate or up-regulated translation of protein factors in ССs of PCOS patients.
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Wathlet S, Adriaenssens T, Segers I, Verheyen G, Janssens R, Coucke W, Devroey P, Smitz J. New candidate genes to predict pregnancy outcome in single embryo transfer cycles when using cumulus cell gene expression. Fertil Steril 2012; 98:432-9.e1-4. [PMID: 22633264 DOI: 10.1016/j.fertnstert.2012.05.007] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2012] [Revised: 05/03/2012] [Accepted: 05/03/2012] [Indexed: 01/01/2023]
Abstract
OBJECTIVE To relate the gene expression in cumulus cells surrounding an oocyte to the potential of the oocyte, as evaluated by the embryo morphology (days 3 and 5) and pregnancy obtained in single-embryo transfer cycles. DESIGN Retrospective analysis of individual human cumulus complexes using quantitative real-time polymerase chain reaction for 11 genes. SETTING University hospital IVF center. PATIENT(S) Thirty-three intracytoplasmic sperm injection patients, of which 16 were pregnant (4 biochemical and 12 live birth). INTERVENTION(S) Gene expression analysis in human cumulus complexes collected individually at pickup, allowing a correlation with the outcome of the corresponding oocyte. Multiparametric models were built for embryo morphology parameters and pregnancy prediction to find the most predictive genes. MAIN OUTCOME MEASURE(S) Gene expression profile of 99 cumulus complexes for 11 genes. RESULT(S) For embryo morphology prediction, TRPM7, ITPKA, STC2, CYP11A1, and HSD3B1 were often retained as informative. Models for pregnancy-biochemical or live birth-complemented or not with patient and cycle characteristics, always retained EFNB2 and CAMK1D together with STC1 or STC2. Positive and negative predictive values of the live birth models were >85%. CONCLUSION(S) EFNB2 and CAMK1D are promising genes that could help to choose the embryo to transfer with the highest chance of a pregnancy.
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Affiliation(s)
- Sandra Wathlet
- Follicle Biology Laboratory, Universitair Ziekenhuis Brussel, Brussels, Belgium.
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Fragouli E, Wells D, Iager AE, Kayisli UA, Patrizio P. Alteration of gene expression in human cumulus cells as a potential indicator of oocyte aneuploidy. Hum Reprod 2012; 27:2559-68. [DOI: 10.1093/humrep/des170] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
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143
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Slominski RM, Reiter RJ, Schlabritz-Loutsevitch N, Ostrom RS, Slominski AT. Melatonin membrane receptors in peripheral tissues: distribution and functions. Mol Cell Endocrinol 2012; 351:152-66. [PMID: 22245784 PMCID: PMC3288509 DOI: 10.1016/j.mce.2012.01.004] [Citation(s) in RCA: 468] [Impact Index Per Article: 39.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2011] [Accepted: 01/01/2012] [Indexed: 12/15/2022]
Abstract
Many of melatonin's actions are mediated through interaction with the G-protein coupled membrane bound melatonin receptors type 1 and type 2 (MT1 and MT2, respectively) or, indirectly with nuclear orphan receptors from the RORα/RZR family. Melatonin also binds to the quinone reductase II enzyme, previously defined the MT3 receptor. Melatonin receptors are widely distributed in the body; herein we summarize their expression and actions in non-neural tissues. Several controversies still exist regarding, for example, whether melatonin binds the RORα/RZR family. Studies of the peripheral distribution of melatonin receptors are important since they are attractive targets for immunomodulation, regulation of endocrine, reproductive and cardiovascular functions, modulation of skin pigmentation, hair growth, cancerogenesis, and aging. Melatonin receptor agonists and antagonists have an exciting future since they could define multiple mechanisms by which melatonin modulates the complexity of such a wide variety of physiological and pathological processes.
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Affiliation(s)
- Radomir M. Slominski
- Department of Pharmacology, University of Tennessee Health Science Center, Memphis, TN 38163, United States
- Department of Pathology and Laboratory Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, United States
| | - Russel J. Reiter
- Department of Cellular & Structural Biology, UT Health Science Center, San Antonio, TX 78229-3900, United States
| | - Natalia Schlabritz-Loutsevitch
- Department of Obstetrics and Gynecology, University of Tennessee Health Science Center, Memphis, TN 38163, United States
| | - Rennolds S. Ostrom
- Department of Pharmacology, University of Tennessee Health Science Center, Memphis, TN 38163, United States
| | - Andrzej T. Slominski
- Department of Pathology and Laboratory Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, United States
- Division of Dermatology, Department of Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, United States
- Corresponding author at: Department of Pathology and Laboratory Medicine, University of Tennessee Health Science Center, 930 Madison Avenue, Suite 5000, Memphis, TN 38163, United States. Tel.: +1 901 448 3741. (A.T. Slominski)
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LH receptor gene expression in cumulus cells in women entering an ART program. J Assist Reprod Genet 2012; 29:409-16. [PMID: 22382642 DOI: 10.1007/s10815-012-9729-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2011] [Accepted: 02/14/2012] [Indexed: 02/04/2023] Open
Abstract
PURPOSE Luteinizing hormone (LH) exerts its actions through its receptor (LHR), which is mainly expressed in theca cells and to a lesser extent in oocytes, granulosa and cumulus cells. The aim of the present study was the investigation of a possible correlation between LHR gene and LHR splice variants expression in cumulus cells and ovarian response as well as ART outcome. METHODS Forty patients undergoing ICSI treatment for male factor infertility underwent a long luteal GnRH-agonist downregulation protocol with a fixed 5-day rLH pre-treatment prior to rFSH stimulation and samples of cumulus cells were collected on the day of egg collection. RNA extraction and cDNA preparation was followed by LHR gene expression investigation through real-time PCR. Furthermore, cumulus cells were investigated for the detection of LHR splice variants using reverse transcription PCR. RESULTS Concerning LHR expression in cumulus cells, a statistically significant negative association was observed with the duration of ovarian stimulation (odds ratio = 0.23, p = 0.012). Interestingly, 6 over 7 women who fell pregnant expressed at least two specific types of LHR splice variants (735 bp, 621 bp), while only 1 out of 19 women that did not express any splice variant achieved a pregnancy. CONCLUSIONS Consequently, the present study provide a step towards a new role of LHR gene expression profiling as a biomarker in the prediction of ovarian response at least in terms of duration of stimulation and also a tentative role of LHR splice variants expression in the prediction of pregnancy success.
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Nabenishi H, Takagi S, Kamata H, Nishimoto T, Morita T, Ashizawa K, Tsuzuki Y. The role of mitochondrial transition pores on bovine oocyte competence after heat stress, as determined by effects of cyclosporin A. Mol Reprod Dev 2011; 79:31-40. [DOI: 10.1002/mrd.21401] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2011] [Accepted: 09/30/2011] [Indexed: 12/18/2022]
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146
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Effect of bovine age on the proliferative activity, global DNA methylation, relative telomere length and telomerase activity of granulosa cells. ZYGOTE 2011; 21:256-64. [PMID: 21791163 DOI: 10.1017/s0967199411000499] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Granulosa cells influence the growth and acquisition of the developmental competence of oocytes. We investigated the effects of ageing on the proliferative activity, global genomic DNA methylation, relative telomere length and telomerase activity of bovine granulosa cells. The proliferative activity of cells was examined by bromodeoxyuridine (BrdU) assay, genomic DNA methylation was examined by enzyme-linked immunosorbent assay (ELISA), and relative telomere length and telomerase activity were examined by real-time polymerase chain reaction. We first compared the proliferative activity of the granulosa cells of the medium follicles between in dominant phase ovaries and growth phase ovaries. We observed that the proliferative activity of the granulosa cells of dominant phase ovaries was significantly lower than those of growth phase ovaries. In addition, the proliferative activity of granulosa cells was inversely associated with follicular size. Based on the results, we used granulosa cells harvested from the medium follicles (3-5 mm in diameter) on the surfaces of the dominant phase ovaries collected from cows at a slaughterhouse. The proliferative activity of the granulosa cells harvested from the ovaries of old cows (N = 8; average age 165.1 months) was lower than that of the cells from young cows (N = 8; average age 30.9 months). Global loss of cytosine methylation was detected in the granulosa cells of old cows (N = 12; average age 141.0 months) compared with young cows (N = 15; average age 27.4 months). Although the relative telomere lengths of cumulus cells were similar in the two age groups, the relative telomere lengths and telomerase activity of the granulosa cells from old cows (N = 17 and 9; average age, 164.6 and 151.3 months, respectively) tended to be shorter than those of the cells from young cows (N = 17 and 10; average age 30.6 and 28.1 months, respectively); however, this difference was not significant p = 0.09 and 0.053, respectively). In conclusion, the proliferative activity and genomic global DNA methylation significantly decreased, and the relative telomere lengths and telomerase activity of granulosa cells tended to be shorter with the age of donor cows.
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Eichenlaub-Ritter U. Alterungsprozesse und Aneuploidie der Oozyte. GYNAKOLOGISCHE ENDOKRINOLOGIE 2010. [DOI: 10.1007/s10304-010-0364-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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