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Plancha CE, Rodrigues P, Marques M, Almeida JM, Navarro-Costa P. The time is ripe for oocyte in vitro maturation. J Assist Reprod Genet 2021; 38:1281-1283. [PMID: 33963970 PMCID: PMC8105698 DOI: 10.1007/s10815-021-02209-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 04/26/2021] [Indexed: 01/01/2023] Open
Affiliation(s)
- Carlos E Plancha
- Instituto de Histologia e Biologia do Desenvolvimento, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal. .,Centro Médico de Assistência à Reprodução (CEMEARE), Lisboa, Portugal.
| | - Patrícia Rodrigues
- Centro Médico de Assistência à Reprodução (CEMEARE), Lisboa, Portugal.,Escola de Psicologia e Ciências da Vida, Universidade Lusófona de Humanidade e Tecnologia, Lisboa, Portugal
| | - Mónica Marques
- Centro Médico de Assistência à Reprodução (CEMEARE), Lisboa, Portugal
| | - Joana M Almeida
- Instituto Gulbenkian de Ciência, Oeiras, Portugal.,Instituto de Saúde Ambiental, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - Paulo Navarro-Costa
- Instituto Gulbenkian de Ciência, Oeiras, Portugal. .,Instituto de Saúde Ambiental, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal.
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102
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Llobat L. Pluripotency and Growth Factors in Early Embryonic Development of Mammals: A Comparative Approach. Vet Sci 2021; 8:vetsci8050078. [PMID: 34064445 PMCID: PMC8147802 DOI: 10.3390/vetsci8050078] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 04/27/2021] [Accepted: 05/02/2021] [Indexed: 12/24/2022] Open
Abstract
The regulation of early events in mammalian embryonic development is a complex process. In the early stages, pluripotency, cellular differentiation, and growth should occur at specific times and these events are regulated by different genes that are expressed at specific times and locations. The genes related to pluripotency and cellular differentiation, and growth factors that determine successful embryonic development are different (or differentially expressed) among mammalian species. Some genes are fundamental for controlling pluripotency in some species but less fundamental in others, for example, Oct4 is particularly relevant in bovine early embryonic development, whereas Oct4 inhibition does not affect ovine early embryonic development. In addition, some mechanisms that regulate cellular differentiation do not seem to be clear or evolutionarily conserved. After cellular differentiation, growth factors are relevant in early development, and their effects also differ among species, for example, insulin-like growth factor improves the blastocyst development rate in some species but does not have the same effect in mice. Some growth factors influence genes related to pluripotency, and therefore, their role in early embryo development is not limited to cell growth but could also involve the earliest stages of development. In this review, we summarize the differences among mammalian species regarding the regulation of pluripotency, cellular differentiation, and growth factors in the early stages of embryonic development.
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Affiliation(s)
- Lola Llobat
- Research Group Microbiological Agents Associated with Animal Reproduction (PROVAGINBIO), Department of Animal Production and Health, Veterinary Public Health and Food Science and Technology (PASAPTA) Facultad de Veterinaria, Universidad Cardenal Herrera-CEU, CEU Universities, 46113 Valencia, Spain
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103
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Poulsen LC, Bøtkjær JA, Østrup O, Petersen KB, Andersen CY, Grøndahl ML, Englund ALM. Two waves of transcriptomic changes in periovulatory human granulosa cells. Hum Reprod 2021; 35:1230-1245. [PMID: 32378719 DOI: 10.1093/humrep/deaa043] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 02/05/2020] [Indexed: 11/14/2022] Open
Abstract
STUDY QUESTION How does the human granulosa cell (GC) transcriptome change during ovulation? SUMMARY ANSWER Two transcriptional peaks were observed at 12 h and at 36 h after induction of ovulation, both dominated by genes and pathways known from the inflammatory system. WHAT IS KNOWN ALREADY The crosstalk between GCs and the oocyte, which is essential for ovulation and oocyte maturation, can be assessed through transcriptomic profiling of GCs. Detailed transcriptional changes during ovulation have not previously been assessed in humans. STUDY DESIGN, SIZE, DURATION This prospective cohort study comprised 50 women undergoing fertility treatment in a standard antagonist protocol at a university hospital-affiliated fertility clinic in 2016-2018. PARTICIPANTS/MATERIALS, SETTING, METHODS From each woman, one sample of GCs was collected by transvaginal ultrasound-guided follicle aspiration either before or 12 h, 17 h or 32 h after ovulation induction (OI). A second sample was collected at oocyte retrieval, 36 h after OI. Total RNA was isolated from GCs and analyzed by microarray. Gene expression differences between the five time points were assessed by ANOVA with a random factor accounting for the pairing of samples, and seven clusters of protein-coding genes representing distinct expression profiles were identified. These were used as input for subsequent bioinformatic analyses to identify enriched pathways and suggest upstream regulators. Subsets of genes were assessed to explore specific ovulatory functions. MAIN RESULTS AND THE ROLE OF CHANCE We identified 13 345 differentially expressed transcripts across the five time points (false discovery rate, <0.01) of which 58% were protein-coding genes. Two clusters of mainly downregulated genes represented cell cycle pathways and DNA repair. Upregulated genes showed one peak at 12 h that resembled the initiation of an inflammatory response, and one peak at 36 h that resembled the effector functions of inflammation such as vasodilation, angiogenesis, coagulation, chemotaxis and tissue remodelling. Genes involved in cell-matrix interactions as a part of cytoskeletal rearrangement and cell motility were also upregulated at 36 h. Predicted activated upstream regulators of ovulation included FSH, LH, transforming growth factor B1, tumour necrosis factor, nuclear factor kappa-light-chain-enhancer of activated B cells, coagulation factor 2, fibroblast growth factor 2, interleukin 1 and cortisol, among others. The results confirmed early regulation of several previously described factors in a cascade inducing meiotic resumption and suggested new factors involved in cumulus expansion and follicle rupture through co-regulation with previously described factors. LARGE SCALE DATA The microarray data were deposited to the Gene Expression Omnibus (www.ncbi.nlm.nih.gov/gds/, accession number: GSE133868). LIMITATIONS, REASONS FOR CAUTION The study included women undergoing ovarian stimulation and the findings may therefore differ from a natural cycle. However, the results confirm significant regulation of many well-established ovulatory genes from a series of previous studies such as amphiregulin, epiregulin, tumour necrosis factor alfa induced protein 6, tissue inhibitor of metallopeptidases 1 and plasminogen activator inhibitor 1, which support the relevance of the results. WIDER IMPLICATIONS OF THE FINDINGS The study increases our understanding of human ovarian function during ovulation, and the publicly available dataset is a valuable resource for future investigations. Suggested upstream regulators and highly differentially expressed genes may be potential pharmaceutical targets in fertility treatment and gynaecology. STUDY FUNDING/COMPETING INTEREST(S) The study was funded by EU Interreg ÔKS V through ReproUnion (www.reprounion.eu) and by a grant from the Region Zealand Research Foundation. None of the authors have any conflicts of interest to declare.
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Affiliation(s)
- L C Poulsen
- Fertility Clinic, Zealand University Hospital, Lykkebækvej 14, 4600 Køge, Denmark
| | - J A Bøtkjær
- Laboratory of Reproductive Biology, University Hospital of Copenhagen, Rigshospitalet, Blegdamsvej 9, 2100 Copenhagen Ø, Denmark
| | - O Østrup
- Center for Genomic Medicine, Rigshospitalet, Blegdamsvej 9, 2100 Copenhagen Ø, Denmark
| | - K B Petersen
- Fertility Clinic, Zealand University Hospital, Lykkebækvej 14, 4600 Køge, Denmark
| | - C Yding Andersen
- Laboratory of Reproductive Biology, University Hospital of Copenhagen, Rigshospitalet, Blegdamsvej 9, 2100 Copenhagen Ø, Denmark
| | - M L Grøndahl
- Fertility Clinic, University Hospital of Copenhagen, Herlev and Gentofte Hospital, Herlev Ringvej 75, 2730 Herlev, Denmark
| | - A L M Englund
- Fertility Clinic, Zealand University Hospital, Lykkebækvej 14, 4600 Køge, Denmark
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104
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Luo Q, Tan Y, Hu R, Xia Y, Xia G. [Mechanism of Ziyin recipe for treatment of ovulatory infertility: a network pharmacology-based study and clinical observations]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2021; 41:319-328. [PMID: 33849821 DOI: 10.12122/j.issn.1673-4254.2021.03.02] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To explore the mechanisms of Ziyin recipe for treatment of ovulatory infertility based on network pharmacology analysis and evaluate the clinical efficacy of this recipe. OBJECTIVE TCMSP, PubChem, Genecards, String, Swiss Target Prediction, and Uniprot databases were searched to identify all the action targets of Ziyin recipe and ovulatory infertility to construct the PPI network. Gene ontology (GO) and KEGG pathway enrichment analyses were performed and the "TCM-active ingredient-target-pathway" network was constructed using Cytoscape 3.6.0. We also designed a controlled clinical trial to verify the clinical effectiveness of Ziyin recipe. The patients were randomized into 2 groups to receive treatment with Western medicine including CC and HMG (control group) and additional treatment with Ziyin recipe, and the dosage of GN, follicular development days, E2 level of a single dominant follicle on trigger day, ovulation rate, the rate of LUFS, and clinical pregnancy rate were compared between the two groups. OBJECTIVE We identified 22 active ingredients and 354 targets of action in Ziyin recipe, 791 targets of ovulatory infertility, and 96 common targets of action shared by Ziyin recipe and ovulatory infertility. According to Degree, the key targets included SRC, MAPK1, HSP90aa1, MAPK3, PTPN11, ESR1, Akt1, EGFR, NR3C1 and KNG1. Enrichment analysis of GO biological process showed that Ziyin recipe mainly focused on steroid hormonemediated signaling pathway, oxidation, reduction, and apoptosis. The most significantly enriched signaling pathways included PI3K-Akt signaling pathway, RAP1 signaling pathway, HIF-1 signaling pathway, estrogen signaling pathway, ovarian steroid production, and steroid hormone biosynthesis. The results of the clinical trial showed that Ziyin recipe significantly reduced the dose of GN, accelerated follicle development, increased E2 level of single dominant follicle on the trigger day, and increased the cycle ovulation rate and pregnancy rate. OBJECTIVE The therapeutic effects of Ziyin recipe are probably mediated through different pathways to promote follicle development, thus improving ovulation rate and clinical pregnancy rate of infertile patients with ovulatory disorders.
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Affiliation(s)
- Q Luo
- Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210029, China
| | - Y Tan
- Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210029, China
| | - R Hu
- Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210029, China
| | - Y Xia
- Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210029, China
| | - G Xia
- Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210029, China
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105
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Riepsamen AH, Donoghoe MW, Baerwald A, Pankhurst MW, Lien S, Chong YH, Robertson DM, Ledger WL, Gilchrist RB. Exploratory analysis of serum concentrations of oocyte biomarkers growth differentiation factor 9 and bone morphogenetic protein 15 in ovulatory women across the menstrual cycle. Fertil Steril 2021; 116:546-557. [PMID: 33775397 DOI: 10.1016/j.fertnstert.2021.02.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 01/18/2021] [Accepted: 02/01/2021] [Indexed: 10/21/2022]
Abstract
OBJECTIVE To characterize and evaluate the variation in serum concentrations of oocyte-secreted growth differentiation factor 9 (GDF9) and bone morphogenetic protein 15 (BMP15) throughout the menstrual cycle in women from young to advanced reproductive ages. DESIGN Cross-sectional, observational, and exploratory study. SETTING Multicenter university-based clinical practices and laboratories. PATIENT(S) Serum was collected every 1-3 days throughout the menstrual cycle from 3 cohorts of healthy, ovulatory women: menses to late luteal phase (21-29 years of age; n = 16; University of Otago) and across one interovulatory interval (18-35 years of age; n = 10; and 45-50 years of age; n = 15; University of Saskatchewan). INTERVENTION(S) None. MAIN OUTCOME MEASURE(S) To detect the changes in serum GDF9 and BMP15 across the cycle, mean concentration and variance were statistically modeled using a generalized additive model of location, shape and scale (GAMLSS). Follicle-stimulating hormone, luteinizing hormone, estradiol, progesterone, and anti-Müllerian hormone were also assessed. RESULT(S) GDF9 and BMP15 were detectable in 54% and 73% of women and varied 236-fold and 52-fold between women, respectively. Across the menstrual cycle, there were minimal changes in GDF9 or BMP15 within a woman for all cohorts, with no significant differences detected in the modeled mean concentrations. However, modeled variances were highest in the luteal phases of all women for BMP15 immediately after ovulation, regardless of age. CONCLUSION(S) Serial changes in GDF9 or BMP15 concentrations across the cycle were not statistically detected and are likewise similar across the reproductive lifespan. Further research is required to fully elucidate the utility of these oocyte biomarkers at diagnosing fertility potential and/or disease.
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Affiliation(s)
- Angelique H Riepsamen
- Fertility and Research Centre, School of Women's and Children's Health, University of New South Wales Sydney, New South Wales, Australia.
| | - Mark W Donoghoe
- Stats Central, Mark Wainwright Analytical Centre, University of New South Wales Sydney, New South Wales, Australia
| | - Angela Baerwald
- Department of Academic Family Medicine, West Winds Primary Health Center, Saskatchewan, Canada; College of Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Michael W Pankhurst
- Department of Anatomy, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
| | - Shelly Lien
- Fertility and Research Centre, School of Women's and Children's Health, University of New South Wales Sydney, New South Wales, Australia
| | - Yih Harng Chong
- Department of Anatomy, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
| | - David M Robertson
- Fertility and Research Centre, School of Women's and Children's Health, University of New South Wales Sydney, New South Wales, Australia
| | - William L Ledger
- Fertility and Research Centre, School of Women's and Children's Health, University of New South Wales Sydney, New South Wales, Australia
| | - Robert B Gilchrist
- Fertility and Research Centre, School of Women's and Children's Health, University of New South Wales Sydney, New South Wales, Australia
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106
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Hwang SU, Yoon JD, Kim M, Cai L, Choi H, Oh D, Kim E, Hyun SH. R-Spondin 2 and WNT/CTNNB1 Signaling Pathways Are Required for Porcine Follicle Development and In Vitro Maturation. Animals (Basel) 2021; 11:ani11030709. [PMID: 33807916 PMCID: PMC7998564 DOI: 10.3390/ani11030709] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 02/24/2021] [Accepted: 03/02/2021] [Indexed: 12/26/2022] Open
Abstract
The secretion of oocyte-derived paracrine factors, such as R-spondin2, is an essential mechanism for follicle growth by promoting the proliferation and differentiation of cumulus cells around oocytes. In the present study, we aimed to identify the effect of R-spondin2 during follicular development. First, R-spondin2-related factors (R-spondin2, CTNNB1, LGR4, and LGR5) were identified through immunofluorescence in porcine ovarian tissue. CTNNB1 was expressed in ooplasm, and CTNNB1 and LGR4 were expressed in granulosa cells. In addition, R-spondin2, LGR4, and LGR5 were expressed in the theca interna. These results imply that these proteins play a major role in porcine follicular development. In addition, the effects of R-spondin2 on the in vitro maturation process of porcine cumulus oocyte complexes and subsequent embryonic development were confirmed. A treatment of 100 ng/mL R-spondin2 in the in vitro maturation (IVM) process increased nuclear maturation and increased the expression of EGFR mRNA in cumulus cells. The EGFR-ERK signal is essential for oocyte maturation, ovulation, and luteinization. R-spondin2 treatment also increased the expression of CTNNB1 and EGFR in primary cultured cumulus cells. In conclusion, RSPO2 and WNT/CTNNB1 signaling pathways are required for porcine follicle development and are predicted to be involved in the EGFR-ERK signaling pathway.
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Affiliation(s)
- Seon-Ung Hwang
- Laboratory of Veterinary Embryology and Biotechnology (VETEMBIO), College of Veterinary Medicine, Chungbuk National University, Cheongju 28644, Korea; (S.-U.H.); (J.D.Y.); (M.K.); (L.C.); (H.C.); (D.O.)
- Institute of Stem Cell & Regenerative Medicine (ISCRM), Chungbuk National University, Cheongju 28644, Korea
| | - Junchul David Yoon
- Laboratory of Veterinary Embryology and Biotechnology (VETEMBIO), College of Veterinary Medicine, Chungbuk National University, Cheongju 28644, Korea; (S.-U.H.); (J.D.Y.); (M.K.); (L.C.); (H.C.); (D.O.)
- Institute of Stem Cell & Regenerative Medicine (ISCRM), Chungbuk National University, Cheongju 28644, Korea
| | - Mirae Kim
- Laboratory of Veterinary Embryology and Biotechnology (VETEMBIO), College of Veterinary Medicine, Chungbuk National University, Cheongju 28644, Korea; (S.-U.H.); (J.D.Y.); (M.K.); (L.C.); (H.C.); (D.O.)
- Institute of Stem Cell & Regenerative Medicine (ISCRM), Chungbuk National University, Cheongju 28644, Korea
| | - Lian Cai
- Laboratory of Veterinary Embryology and Biotechnology (VETEMBIO), College of Veterinary Medicine, Chungbuk National University, Cheongju 28644, Korea; (S.-U.H.); (J.D.Y.); (M.K.); (L.C.); (H.C.); (D.O.)
- Institute of Stem Cell & Regenerative Medicine (ISCRM), Chungbuk National University, Cheongju 28644, Korea
| | - Hyerin Choi
- Laboratory of Veterinary Embryology and Biotechnology (VETEMBIO), College of Veterinary Medicine, Chungbuk National University, Cheongju 28644, Korea; (S.-U.H.); (J.D.Y.); (M.K.); (L.C.); (H.C.); (D.O.)
- Institute of Stem Cell & Regenerative Medicine (ISCRM), Chungbuk National University, Cheongju 28644, Korea
| | - Dongjin Oh
- Laboratory of Veterinary Embryology and Biotechnology (VETEMBIO), College of Veterinary Medicine, Chungbuk National University, Cheongju 28644, Korea; (S.-U.H.); (J.D.Y.); (M.K.); (L.C.); (H.C.); (D.O.)
- Institute of Stem Cell & Regenerative Medicine (ISCRM), Chungbuk National University, Cheongju 28644, Korea
| | - Eunhye Kim
- Laboratory of Veterinary Embryology and Biotechnology (VETEMBIO), College of Veterinary Medicine, Chungbuk National University, Cheongju 28644, Korea; (S.-U.H.); (J.D.Y.); (M.K.); (L.C.); (H.C.); (D.O.)
- Correspondence: (E.K.); (S.-H.H.); Tel.: +82-43-249-1746 (E.K.); +82-43-261-3393 (S.-H.H.)
| | - Sang-Hwan Hyun
- Laboratory of Veterinary Embryology and Biotechnology (VETEMBIO), College of Veterinary Medicine, Chungbuk National University, Cheongju 28644, Korea; (S.-U.H.); (J.D.Y.); (M.K.); (L.C.); (H.C.); (D.O.)
- Institute of Stem Cell & Regenerative Medicine (ISCRM), Chungbuk National University, Cheongju 28644, Korea
- Correspondence: (E.K.); (S.-H.H.); Tel.: +82-43-249-1746 (E.K.); +82-43-261-3393 (S.-H.H.)
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107
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Abbassi L, El-Hayek S, Carvalho KF, Wang W, Yang Q, Granados-Aparici S, Mondadori R, Bordignon V, Clarke HJ. Epidermal growth factor receptor signaling uncouples germ cells from the somatic follicular compartment at ovulation. Nat Commun 2021; 12:1438. [PMID: 33664246 PMCID: PMC7933413 DOI: 10.1038/s41467-021-21644-z] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Accepted: 02/07/2021] [Indexed: 01/31/2023] Open
Abstract
Germ cells are physically coupled to somatic support cells of the gonad during differentiation, but this coupling must be disrupted when they are mature, freeing them to participate in fertilization. In mammalian females, coupling occurs via specialized filopodia that project from the ovarian follicular granulosa cells to the oocyte. Here, we show that signaling through the epidermal growth factor receptor (EGFR) in the granulosa, which becomes activated at ovulation, uncouples the germ and somatic cells by triggering a massive and temporally synchronized retraction of the filopodia. Although EGFR signaling triggers meiotic maturation of the oocyte, filopodial retraction is independent of the germ cell state, being regulated solely within the somatic compartment, where it requires ERK-dependent calpain-mediated loss of filopodia-oocyte adhesion followed by Arp2/3-mediated filopodial shortening. By uncovering the mechanism regulating germ-soma uncoupling at ovulation, our results open a path to improving oocyte quality in human and animal reproduction.
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Affiliation(s)
- Laleh Abbassi
- Research Institute of the McGill University Health Centre, Montreal, Canada
- Division of Experimental Medicine, McGill University, Montreal, Canada
- Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
| | - Stephany El-Hayek
- Research Institute of the McGill University Health Centre, Montreal, Canada
- Department of Biology, McGill University, Montreal, Canada
- Centre for Arab Genomic Studies, Dubai, United Arab Emirates
| | - Karen Freire Carvalho
- Research Institute of the McGill University Health Centre, Montreal, Canada
- Division of Experimental Medicine, McGill University, Montreal, Canada
| | - Wusu Wang
- Research Institute of the McGill University Health Centre, Montreal, Canada
- College of Animal Science and Technology, Northwest A&F University, Shaanxi, PR China
| | - Qin Yang
- Research Institute of the McGill University Health Centre, Montreal, Canada
| | | | - Rafael Mondadori
- Department of Animal Science, McGill University, Montreal, Canada
| | - Vilceu Bordignon
- Department of Animal Science, McGill University, Montreal, Canada
| | - Hugh J Clarke
- Research Institute of the McGill University Health Centre, Montreal, Canada.
- Division of Experimental Medicine, McGill University, Montreal, Canada.
- Department of Biology, McGill University, Montreal, Canada.
- Department of Obstetrics and Gynecology, McGill University, Montreal, Canada.
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108
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Wang X, Xiao Y, Sun Z, Zhen J, Yu Q. Effect of the time interval between oocyte retrieval and ICSI on embryo development and reproductive outcomes: a systematic review. Reprod Biol Endocrinol 2021; 19:34. [PMID: 33648503 PMCID: PMC7919304 DOI: 10.1186/s12958-021-00717-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 02/12/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Intra-cytoplasmic sperm injection (ICSI) is used in assisted reproductive technology (ART) laboratories. However, there is no consensus regarding the precise time intervals within ICSI cycles [oocyte pick up (OPU), oocyte denudation (DN), and ICSI], and results are inconsistent and contradictory. Thus, we aim to evaluate whether there is a concordance regarding the time intervals used in different laboratories and a concrete time that gives better laboratory and reproductive results. METHODS A systematic review of the literature until July 25, 2020, was performed with the keywords "Oocyte Denudation/Denudation/Oocyte," "Intra-cytoplasmic Sperm Injection/ICSI," "Oocyte/Oocyte maturation/ cumulus," and "Cumulus removal/ removal." Articles and abstracts in English and involving human subjects referring to the effects of oocyte DN time on embryo development and clinical outcomes were included. RESULTS Of the 294 evaluated articles, 24 (including 20 full articles and 4 abstracts) were included in this review. Eighteen studies analysed the effect of OPU-DN time on embryo development and clinical outcomes. Most of these studies concluded that OPU-DN time did not influence ICSI outcomes, but some suggested that oocytes should be incubated for a short time before DN to improve oocyte maturity and enhance ICSI outcomes. In addition to reports on positive or negligible effects, adverse effects were reported in 12 studies on DN-ICSI timing. Neither OPU-DN nor DN-ICSI time could improve live birth rate. CONCLUSIONS Oocytes should be pre-incubated for a short duration (preferably < 4 h) before DN according to the ART laboratory schedule. More randomised controlled trials are warranted to clarify the effect of DN-ICSI timing on ICSI outcomes.
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Affiliation(s)
- Xue Wang
- Department of Gynecology Endocrine and Reproductive Center, Peking Union Medical College Hospital, Peking Union Medical College/Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - YaLing Xiao
- Department of Gynecology Endocrine and Reproductive Center, Peking Union Medical College Hospital, Peking Union Medical College/Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - ZhengYi Sun
- Department of Gynecology Endocrine and Reproductive Center, Peking Union Medical College Hospital, Peking Union Medical College/Chinese Academy of Medical Sciences, Beijing, 100730, China.
| | - JingRan Zhen
- Department of Gynecology Endocrine and Reproductive Center, Peking Union Medical College Hospital, Peking Union Medical College/Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Qi Yu
- Department of Gynecology Endocrine and Reproductive Center, Peking Union Medical College Hospital, Peking Union Medical College/Chinese Academy of Medical Sciences, Beijing, 100730, China
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109
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Protein Tyrosine Phosphatase SHP2 Suppresses Host Innate Immunity against Influenza A Virus by Regulating EGFR-Mediated Signaling. J Virol 2021; 95:JVI.02001-20. [PMID: 33361428 DOI: 10.1128/jvi.02001-20] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 12/13/2020] [Indexed: 12/14/2022] Open
Abstract
Influenza A virus (IAV) is a highly contagious pathogen, causing acute respiratory illnesses in human beings and animals and frequently giving rise to epidemic outbreaks. Evasion by IAV of host immunity facilitates viral replication and spread, which can be initiated through various mechanisms, including epidermal growth factor receptor (EGFR) activation. However, how EGFR mediates the suppression of antiviral systems remains unclear. Here, we examined host innate immune responses and their relevant signaling to EGFR upon IAV infection. IAV was found to induce the phosphorylation of EGFR and extracellular signal-regulated kinase (ERK) at an early stage of infection. Inhibition of EGFR or ERK suppressed the viral replication but increased the expression of type I and type III interferons (IFNs) and interferon-stimulated genes (ISGs), supporting the idea that IAV escapes from antiviral innate immunity by activating EGFR/ERK signaling. Meanwhile, IAV infection also induced the activation of Src homology region 2-containing protein tyrosine phosphatase 2 (SHP2). Pharmacological inhibition or small interfering RNA (siRNA)-based silencing of SHP2 enhanced the IFN-dependent antiviral activity and reduced virion production. Furthermore, knockdown of SHP2 attenuated the EGFR-mediated ERK phosphorylation triggered by viral infection or EGF stimulation. Conversely, ectopic expression of constitutively active SHP2 noticeably promoted ERK activation and viral replication, concomitant with diminished immune function. Altogether, the results indicate that SHP2 is crucial for IAV-induced activation of the EGFR/ERK pathway to suppress host antiviral responses.IMPORTANCE Viral immune evasion is the most important strategy whereby viruses evolve for their survival. This work shows that influenza A virus (IAV) suppressed the antiviral innate immunity through downregulation of IFNs and ISGs by activating EGFR/ERK signaling. Meanwhile, IAV also induced the activation of protein tyrosine phosphatase SHP2, which was found to be responsible for modulating the EGFR-mediated ERK activity and subsequent antiviral effectiveness both in vitro and in vivo The results suggest that SHP2 is a key signal transducer between EGFR and ERK and plays a crucial role in suppressing host innate immunity during IAV infection. The finding enhances our understanding of influenza immune evasion and provides a new therapeutic approach to viral infection.
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110
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Fushii M, Yamada R, Miyano T. In vitro growth of bovine oocytes in oocyte-cumulus cell complexes and the effect of follicle stimulating hormone on the growth of oocytes. J Reprod Dev 2021; 67:5-13. [PMID: 33132227 PMCID: PMC7902213 DOI: 10.1262/jrd.2020-102] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 10/08/2020] [Indexed: 01/17/2023] Open
Abstract
Several successful in vitro culture experiments have used oocyte-cumulus cell-mural granulosa cell complexes (OCGCs) from early antral follicles (0.5-0.7 mm) for the growth of bovine oocytes. However, in studies related to in vitro oocyte maturation and in vitro embryo production, oocyte-cumulus cell complexes (OCCs) that have no mural granulosa cells have been widely used instead of OCGCs. The purpose of this study was to determine whether cumulus cells alone support oocyte growth. First, OCCs and OCGCs were cultured in vitro for 14 days to compare the integrity of the complexes as well as antrum formation. After 14 days, the diameter and meiotic competence of oocytes in OCCs and OCGCs were examined. Oocytes in OCCs grew fully and acquired meiotic competence similar to OCGCs, whereas antrum formation occurred later in OCCs as compared to OCGCs. Subsequently, the effects of follicle stimulating hormone (FSH) on in vitro growth of OCCs were examined for 14 days. When FSH was added to the culture medium, OCCs formed antrum-like structures one day earlier than those cultured without FSH. Oocytes cultured with 1 mIU/ml FSH grew fully and acquired meiotic competence. In contrast, when oocytes were cultured in media containing high concentrations of FSH, some of the OCCs collapsed and the number of degenerated oocytes increased. In conclusion, bovine oocytes in OCCs grow and acquire meiotic competence similar to OCGCs and, 1 mIU/ml FSH supports the development of OCCs and oocyte growth as observed in our culture system.
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Affiliation(s)
- Mihoko Fushii
- Laboratory of Developmental Biotechnology, Graduate School of Agricultural Science, Kobe University, Kobe 657-8501, Japan
| | - Rie Yamada
- Laboratory of Developmental Biotechnology, Graduate School of Agricultural Science, Kobe University, Kobe 657-8501, Japan
| | - Takashi Miyano
- Laboratory of Developmental Biotechnology, Graduate School of Agricultural Science, Kobe University, Kobe 657-8501, Japan
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Zhao YH, Wang JJ, Zhang PP, Hao HS, Pang YW, Wang HY, Du WH, Zhao SJ, Ruan WM, Zou HY, Hao T, Zhu HB, Zhao XM. Oocyte IVM or vitrification significantly impairs DNA methylation patterns in blastocysts as analysed by single-cell whole-genome methylation sequencing. Reprod Fertil Dev 2021; 32:676-689. [PMID: 32317092 DOI: 10.1071/rd19234] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Accepted: 11/14/2019] [Indexed: 12/12/2022] Open
Abstract
To explore the mechanisms leading to the poor quality of IVF blastocysts, the single-cell whole-genome methylation sequencing technique was used in this study to analyse the methylation patterns of bovine blastocysts derived from invivo, fresh (IVF) or vitrified (V_IVF) oocytes. Genome methylation levels of blastocysts in the IVF and V_IVF groups were significantly lower than those of the invivo group (P<0.05). In all, 1149 differentially methylated regions (DMRs) were identified between the IVF and invivo groups, 1578 DMRs were identified between the V_IVF and invivo groups and 151 DMRs were identified between the V_IVF and IVF groups. For imprinted genes, methylation levels of insulin-like growth factor 2 receptor (IGF2R) and protein phosphatase 1 regulatory subunit 9A (PPP1R9A) were lower in the IVF and V_IVF groups than in the invivo group, and the methylation level of paternally expressed 3 (PEG3) was lower in the V_IVF group than in the IVF and invivo groups. Genes with DMRs between the IVF and invivo and the V_IVF and IVF groups were primarily enriched in oocyte maturation pathways, whereas DMRs between the V_IVF and invivo groups were enriched in fertilisation and vitrification-vulnerable pathways. The results of this study indicate that differences in the methylation of critical DMRs may contribute to the differences in quality between invitro- and invivo-derived embryos.
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Affiliation(s)
- Ya-Han Zhao
- Embryo Biotechnology and Reproduction Laboratory and the Centre of Domestic Animal Reproduction and Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, PR China
| | - Jing-Jing Wang
- Embryo Biotechnology and Reproduction Laboratory and the Centre of Domestic Animal Reproduction and Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, PR China
| | - Pei-Pei Zhang
- Embryo Biotechnology and Reproduction Laboratory and the Centre of Domestic Animal Reproduction and Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, PR China
| | - Hai-Sheng Hao
- Embryo Biotechnology and Reproduction Laboratory and the Centre of Domestic Animal Reproduction and Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, PR China
| | - Yun-Wei Pang
- Embryo Biotechnology and Reproduction Laboratory and the Centre of Domestic Animal Reproduction and Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, PR China
| | - Hao-Yu Wang
- Embryo Biotechnology and Reproduction Laboratory and the Centre of Domestic Animal Reproduction and Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, PR China
| | - Wei-Hua Du
- Embryo Biotechnology and Reproduction Laboratory and the Centre of Domestic Animal Reproduction and Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, PR China
| | - Shan-Jiang Zhao
- Embryo Biotechnology and Reproduction Laboratory and the Centre of Domestic Animal Reproduction and Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, PR China
| | - Wei-Min Ruan
- International Joint Center for Biomedical Innovation, School of Life Sciences, Henan University, Ming Lun Street, Kaifeng, Henan, 475004, PR China
| | - Hui-Ying Zou
- Embryo Biotechnology and Reproduction Laboratory and the Centre of Domestic Animal Reproduction and Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, PR China
| | - Tong Hao
- Embryo Biotechnology and Reproduction Laboratory and the Centre of Domestic Animal Reproduction and Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, PR China
| | - Hua-Bin Zhu
- Embryo Biotechnology and Reproduction Laboratory and the Centre of Domestic Animal Reproduction and Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, PR China
| | - Xue-Ming Zhao
- Embryo Biotechnology and Reproduction Laboratory and the Centre of Domestic Animal Reproduction and Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, PR China; and Corresponding author.
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Jie H, Zhao M, Alqawasmeh OAM, Chan CPS, Lee TL, Li T, Chan DYL. In vitro rescue immature oocytes - a literature review. HUM FERTIL 2021; 25:640-650. [PMID: 33508986 DOI: 10.1080/14647273.2021.1876932] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Immature oocytes retrieved from in vitro fertilization (IVF) and clinical in vitro maturation (IVM) is a common problem, especially in patients with advanced age, poor ovarian response (POR), or polycystic ovary syndrome (PCOS). Considering there is no common name to describe this group of oocytes, we suggest naming all of immature oocytes retrieved from IVF and clinical IVM cycles as 'Medical Unusable Oocytes' (MUO) as none of them will be used for subsequent treatment and will eventually be discarded. Scientists attempt to improve the clinical utilization rate of MUO instead of discarding them. Rescue IVM and mitochondria supplementation may be available approaches to mature MUO. We propose a specific definition of rescue IVM, namely the cultivation and maturation of immature oocytes in vitro collected from IVF cycles with human chorionic gonadotropin (hCG) trigger. Rescue IVM is usually mixed up with clinical IVM. Clarification of the differences between rescue IVM and clinical IVM is necessary. This manuscript aims to clarify the rather confusing IVM procedures and review existing methods of improving rescue IVM, currently available information on the success rate, and explore the future possibility of rescue IVM serving as a promising tool in reproductive medicine.
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Affiliation(s)
- Huiying Jie
- Department of Obstetrics and Gynecology, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Mingpeng Zhao
- Department of Obstetrics and Gynecology, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Odai Ali Mohammad Alqawasmeh
- Department of Obstetrics and Gynecology, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Carol Pui Shan Chan
- Department of Obstetrics and Gynecology, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Tin Lap Lee
- Developmental and Regenerative Biology Program, School of Biomedical Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Tinchiu Li
- Department of Obstetrics and Gynecology, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - David Yiu Leung Chan
- Department of Obstetrics and Gynecology, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, Hong Kong, China
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Liu H, Wang J, Zhang L, Zhang Y, Wu L, Wang L, Dong C, Nie G, Li X. Transcriptome analysis of common carp (Cyprinus carpio) provides insights into the ovarian maturation related genes and pathways in response to LHRH-A and dopamine inhibitors induction. Gen Comp Endocrinol 2021; 301:113668. [PMID: 33221312 DOI: 10.1016/j.ygcen.2020.113668] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 08/15/2020] [Accepted: 11/13/2020] [Indexed: 11/20/2022]
Abstract
Luteinizing hormone-releasing hormone analog (LHRH-A) and dopamine inhibitors have been widely used to induce oocyte maturation and ovulation in domesticated fishes. Although this approach represents a reliable method for regulating fish reproduction, the underlying molecular mechanisms mediating LH action are largely unexplored. The objective of this study was to determine the transcriptional profile of gene programming in hormone-treated common carp. In the present study, female common carp were intraperitoneally injected with LHRH-A together with dopamine inhibitors, and control fish were injected with saline. Ovarian morphological changes were analysed by both light microscopy and scanning electron microscopy. Furthermore, gene expression profiling of the brain and ovarian tissues was performed by Illumina sequencing. Compared to the control carp, hormone treatment resulted in morphological changes including disappearance of nuclear membrane, breakdown of germinal vesicle (GVBD), and fusion of yolk globules, reflecting that hormones significantly promoted oocyte maturation. In comparison to control, we have identified 867 and 9,053 differentially expressed genes in the hormone-treated female brain and ovary, respectively. In the brain, most of the identified genes were significantly enriched in 18 KEGG pathways. In the ovarian tissue, the identified genes were significantly involved in 9 pathways. In the hormone-treated carp, genes were involved in calcium signalling pathway, cAMP signalling pathway, insulin secretion, and oxidative phosphorylation pathway, which showed obvious associations with ovarian maturation. The present study provides transcriptomic information for hormone-treated carp, which might be useful for studying the endocrine regulation and mechanisms of ovarian maturation in domesticated fishes.
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Affiliation(s)
- Huifen Liu
- College of Fisheries, Henan Normal University, Xinxiang 453007, PR China; College of Fisheries, Engineering Technology Research Center of Henan Province for Aquatic Animal Cultivation, Henan Normal University, Xinxiang 453007, PR China
| | - Jing Wang
- College of Fisheries, Henan Normal University, Xinxiang 453007, PR China; College of Fisheries, Engineering Technology Research Center of Henan Province for Aquatic Animal Cultivation, Henan Normal University, Xinxiang 453007, PR China
| | - Limin Zhang
- College of Fisheries, Henan Normal University, Xinxiang 453007, PR China; College of Fisheries, Engineering Technology Research Center of Henan Province for Aquatic Animal Cultivation, Henan Normal University, Xinxiang 453007, PR China
| | - Yuru Zhang
- College of Fisheries, Henan Normal University, Xinxiang 453007, PR China; College of Fisheries, Engineering Technology Research Center of Henan Province for Aquatic Animal Cultivation, Henan Normal University, Xinxiang 453007, PR China
| | - Limin Wu
- College of Fisheries, Henan Normal University, Xinxiang 453007, PR China; College of Fisheries, Engineering Technology Research Center of Henan Province for Aquatic Animal Cultivation, Henan Normal University, Xinxiang 453007, PR China
| | - Lei Wang
- College of Fisheries, Henan Normal University, Xinxiang 453007, PR China; College of Fisheries, Engineering Technology Research Center of Henan Province for Aquatic Animal Cultivation, Henan Normal University, Xinxiang 453007, PR China
| | - Chuanju Dong
- College of Fisheries, Henan Normal University, Xinxiang 453007, PR China; College of Fisheries, Engineering Technology Research Center of Henan Province for Aquatic Animal Cultivation, Henan Normal University, Xinxiang 453007, PR China
| | - Guoxing Nie
- College of Fisheries, Henan Normal University, Xinxiang 453007, PR China; College of Fisheries, Engineering Technology Research Center of Henan Province for Aquatic Animal Cultivation, Henan Normal University, Xinxiang 453007, PR China
| | - Xuejun Li
- College of Fisheries, Henan Normal University, Xinxiang 453007, PR China; College of Fisheries, Engineering Technology Research Center of Henan Province for Aquatic Animal Cultivation, Henan Normal University, Xinxiang 453007, PR China.
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Abstract
Advanced maternal age is associated with the natural oocyte depletion, leading to low oocyte yield, high infertility treatment cancellation rates, and eventual decreases in pregnancy rates. Various innovative interventions have been introduced to improve the outcome of infertility treatment for aging patients. Numerous published data demonstrated that early follicle development was regulated by intraovarian growth factors through autocrine or paracrine mechanisms. Platelet-rich plasma (PRP), a plasma fraction of peripheral blood with a high concentration of platelets, has been implemented in regenerative medicine in the last decade. The plasma contains a variety of growth factors that were suggested to be able to enhance angiogenesis regeneration and the cell proliferation process. The initial report showed that an intraovarian injection of PRP improved the hormonal profile and increased the number of retrieved oocytes in patients with diminished ovarian reserve. Subsequently, several studies with larger sample sizes have reported that this approach resulted in several healthy live births with no apparent complications. However, the use of ovarian PRP treatment needs to be fully investigated, because no randomized controlled trial has yet been performed to confirm its efficacy.
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Xu H, Zhao S, Gao X, Wu X, Xia L, Zhang D, Li J, Zhang A, Xu B. GnRH Antagonist Protocol With Cessation of Cetrorelix on Trigger Day Improves Embryological Outcomes for Patients With Sufficient Ovarian Reserve. Front Endocrinol (Lausanne) 2021; 12:758896. [PMID: 34721305 PMCID: PMC8551826 DOI: 10.3389/fendo.2021.758896] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Accepted: 09/27/2021] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVE To evaluate the efficiency and validity of cessation of cetrorelix on trigger day during gonadotropin releasing hormone antagonist (GnRH-ant)-controlled ovarian stimulation of in vitro fertilization (IVF) cycles. METHODS In this retrospective study, a total of 1271 patients undergoing initial IVF cycles following the GnRH-ant protocol were enrolled; 832 patients received cetrorelix on trigger day (Group A) and 439 patients ceased cetrorelix on trigger day (Group B). We compared demographic characteristics, embryological and clinical outcomes between the two groups. A Poisson regression model was used to identify factors that significantly affected embryological outcomes. Patients were further divided into subgroups according to anti-Mullerian hormone (AMH) and age, to assess associations between ceasing cetrorelix on trigger day and embryological outcomes. RESULTS There was a significant improvement on embryological outcomes in patients who ceased cetrorelix on trigger day, and there were no significant differences in clinical outcomes or preovulation rates between the two groups. Furthermore, for patients with 1.1 ≤ AMH ≤ 4.7 ng/ml, all embryological outcomes were significantly higher in Group B compared with Group A. For patients with AMH > 4.7 ng/ml, the number of oocytes retrieved, fertilization rate (2PN) of IVF cycles and proportion of day 3 good quality embryos were all significantly higher in Group B. For patients with age < 35 years, all the embryological outcomes, besides the number of available embryos, were significantly higher in Group B than in Group A. There were no differences in embryological outcomes between the two groups when patients were stratified based on age > 35 years or AMH < 1.1 ng/ml. CONCLUSION GnRH-ant protocol with cessation of cetrorelix on trigger day improved embryological outcomes for young patients or patients with sufficient ovarian reserve, and was effective at preventing preovulation.
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Affiliation(s)
- Huihui Xu
- Department of Obstetrics and Gynecology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Shen Zhao
- Department of Obstetrics and Gynecology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xinxing Gao
- Department of Obstetrics and Gynecology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xian Wu
- Department of Obstetrics and Gynecology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lan Xia
- Department of Obstetrics and Gynecology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Dan Zhang
- Department of Obstetrics and Gynecology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jian Li
- Clinical Research Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- *Correspondence: Bufang Xu, ; Aijun Zhang, ; Jian Li,
| | - Aijun Zhang
- Department of Obstetrics and Gynecology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- *Correspondence: Bufang Xu, ; Aijun Zhang, ; Jian Li,
| | - Bufang Xu
- Department of Obstetrics and Gynecology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Department of Histo-Embryology, Genetics and Developmental Biology, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Reproductive Medicine, Shanghai, China
- *Correspondence: Bufang Xu, ; Aijun Zhang, ; Jian Li,
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116
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Yang L, Xu H, Chen Y, Miao C, Zhao Y, Xing Y, Zhang Q. Melatonin: Multi-Target Mechanism Against Diminished Ovarian Reserve Based on Network Pharmacology. Front Endocrinol (Lausanne) 2021; 12:630504. [PMID: 33959095 PMCID: PMC8095380 DOI: 10.3389/fendo.2021.630504] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 03/29/2021] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND Diminished ovarian reserve (DOR) significantly increases the risk of female infertility and contributes to reproductive technology failure. Recently, the role of melatonin in improving ovarian reserve (OR) has attracted widespread attention. However, details on the pharmacological targets and mechanisms of melatonin-improved OR remain unclear. OBJECTIVE A systems pharmacology strategy was proposed to elucidate the potential therapeutic mechanism of melatonin on DOR at the molecular, pathway, and network levels. METHODS The systems pharmacological approach consisted of target identification, data integration, network construction, bioinformatics analysis, and molecular docking. RESULTS From the molecular perspective, 26 potential therapeutic targets were identified. They participate in biological processes related to DOR development, such as reproductive structure development, epithelial cell proliferation, extrinsic apoptotic signaling pathway, PI3K signaling, among others. Eight hub targets (MAPK1, AKT1, EGFR, HRAS, SRC, ESR1, AR, and ALB) were identified. From the pathway level, 17 significant pathways, including the PI3K-Akt signaling pathway and the estrogen signaling pathway, were identified. In addition, the 17 signaling pathways interacted with the 26 potential therapeutic targets to form 4 functional modules. From the network point of view, by regulating five target subnetworks (aging, cell growth and death, development and regeneration, endocrine and immune systems), melatonin could exhibit anti-aging, anti-apoptosis, endocrine, and immune system regulation effects. The molecular docking results showed that melatonin bound well to all hub targets. CONCLUSION This study systematically and intuitively illustrated the possible pharmacological mechanisms of OR improvement by melatonin through anti-aging, anti-apoptosis, endocrine, and immune system regulation effects.
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Affiliation(s)
- Liuqing Yang
- Department of Traditional Chinese Medical Gynecology, Hangzhou Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Hangzhou, China
| | - Hongbin Xu
- Second Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yun Chen
- Department of Traditional Chinese Medical Gynecology, Hangzhou Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Hangzhou, China
| | - Chenyun Miao
- Department of Traditional Chinese Medical Gynecology, Hangzhou Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Hangzhou, China
| | - Ying Zhao
- Department of Traditional Chinese Medical Gynecology, Hangzhou Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Hangzhou, China
| | - Yu Xing
- Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Qin Zhang
- Department of Traditional Chinese Medical Gynecology, Hangzhou Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Hangzhou, China
- *Correspondence: Qin Zhang,
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Zohni K, Lopez L, Mander P, Szaraz P, Filice M, Wyse BA, Garcia M, Gat I, Glass K, Gauthier-Fisher A, Librach CL. Human umbilical cord perivascular cells maintain regenerative traits following exposure to cyclophosphamide. Cancer Lett 2020; 501:133-146. [PMID: 33387641 DOI: 10.1016/j.canlet.2020.12.035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 12/15/2020] [Accepted: 12/21/2020] [Indexed: 11/19/2022]
Abstract
Chemotherapies can cause germ cell depletion and gonadal failure. When injected post-chemotherapy, mesenchymal stromal cells (MSCs) from various sources have been shown to have regenerative effects in rodent models of chemotherapy-induced gonadal injury. Here, we evaluated two properties of a novel source of MSC, first trimester (FTM) human umbilical cord perivascular cells (HUCPVCs) (with increased regenerative potential compared to older sources), that may render them a promising candidate for chemotherapeutic gonadal injury prevention. Firstly, their ability to resist the cytotoxic effects of cyclophosphamide (CTX) in vitro, as compared to term HUCPVCs and bone marrow cells (BMSCs); and secondly, whether they prevent gonadal dysfunction if delivered prior to gonadotoxic therapy in vivo. BMSC, FTM HUCPVC, term HUCPVC, and control NTERA2 cells were treated with moderate (150 μmol/L) and high (300 μmol/L) doses of CTX in vitro. Viability, proliferative capacity, mesenchymal cell lineage markers and differentiation capacity, immunogenicity, and paracrine gene expression were assessed. CTX was administered to Wistar rats 2 days following an intra-ovarian injection of FTM HUCPVC. HUCPVC survival and ovarian follicle numbers were assessed using histological methods. We conclude that FTM HUCPVC maintain key regenerative properties following chemotherapy exposure and that pre-treatment with these cells may prevent CTX-induced ovarian damage in vivo. Therefore, HUCPVCs are promising candidates for fertility preservation.
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Affiliation(s)
- Khaled Zohni
- CReATe Fertility Centre, Toronto, Ontario, Canada; Department of Obstetrics & Gynecology, University of Toronto, Toronto, Canada; Department of Obstetrics and Gynecology, University of Manitoba, Winnipeg, Canada; Heartland Fertility and Gynecology Clinic, Winnipeg, Manitoba, Canada
| | - Lianet Lopez
- CReATe Fertility Centre, Toronto, Ontario, Canada
| | | | - Peter Szaraz
- CReATe Fertility Centre, Toronto, Ontario, Canada
| | | | | | | | - Itai Gat
- CReATe Fertility Centre, Toronto, Ontario, Canada; Pinchas Borenstein Talpiot Medical Leadership Program, Sheba Medical Center, Tel HaShomer, Ramat Gan, Affiliated to Sackler Medical School, University of Tel Aviv, Israel
| | - Karen Glass
- CReATe Fertility Centre, Toronto, Ontario, Canada; Department of Obstetrics & Gynecology, University of Toronto, Toronto, Canada
| | | | - Clifford L Librach
- CReATe Fertility Centre, Toronto, Ontario, Canada; Department of Obstetrics & Gynecology, University of Toronto, Toronto, Canada; Institute of Medical Sciences, University of Toronto, Toronto, Canada; Department of Physiology, University of Toronto, Toronto, Canada; Department of Gynecology, Women's College Hospital, Toronto, ON, Canada.
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Adib M, Seifati SM, Ashkezari MD, Khoradmehr A, Rezaee-Ranjbar-Sardari R, Tahajjodi SS, Aflatoonian B. The effect of the human cumulus cells-conditioned medium on in vitro maturation of mouse oocyte: An experimental study. Int J Reprod Biomed 2020; 18:1019-1028. [PMID: 33426412 PMCID: PMC7778757 DOI: 10.18502/ijrm.v18i12.8023] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 07/12/2020] [Accepted: 07/29/2020] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND To increase the results of infertility treatment, many efforts have been made to improve the treatment methods. As assisted reproductive technology is mainly using cell culture methods, one of the approaches to improve this technology is conditioned medium from different sources. It is desirable to apply in vitro maturation (IVM) and use oocytes from normal cycles instead of stimulating ovulation. OBJECTIVE To investigate the effect of human cumulus cell condition medium (hCCCM) on the IVM of immature mouse oocytes and morphology. MATERIALS AND METHODS In this experimental study, 240 germinal vesile oocytes were collected from four-six wk-old mice after 48 hr of 5IU pregnant mare serum gonadotropin (PMSG) injection and cultured in hCCCM (test group, n = 120) and DMEM + 20% FBS (control group, n = 120). The IVM rates and changes in perivitelline space (PVS) and shape were investigated at 8, 16, and 24 hr following the culture. The mature (MII) oocytes were subjected to in vitro fertilization (IVF) and the fertilization rate was assessed in three days. RESULTS A significant difference was observed between the maturation rates in the hCCCM and control groups (24.16% vs 0%; p = 0.001), as well as morphologic changes between the two groups (p = 0.04, p = 0.05). The development rate for MII oocytes attained from IVM in the hCCCM group was 27.58% (2-cell) and 6.89% (4-cell). Data displayed that hCCCM is an effective medium for oocytes maturation compared to the control medium. CONCLUSION hCCCM supports oocyte in vitro growth and maturation. Moreover, hCCCM changes the oocyte shape and size of perivitelline space.
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Affiliation(s)
- Maryam Adib
- Medical Biotechnology Research Center, Ashkezar Branch, Islamic Azad University, Ashkezar, Yazd, Iran
| | - Seyed Morteza Seifati
- Medical Biotechnology Research Center, Ashkezar Branch, Islamic Azad University, Ashkezar, Yazd, Iran
| | | | - Arezoo Khoradmehr
- Stem Cell Biology Research Center, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | | | - Somayyeh Sadat Tahajjodi
- Stem Cell Biology Research Center, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
- Research and Clinical Center for Infertility, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
- Department of Reproductive Biology, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Behrouz Aflatoonian
- Stem Cell Biology Research Center, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
- Department of Reproductive Biology, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
- Department of Advanced Medical Sciences and Technologies, School of Paramedicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
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Liu J, Yao R, Lu S, Xu R, Zhang H, Wei J, Zhao C, Tang Y, Li C, Liu H, Zhao X, Wei Q, Ma B. Synergistic effect between LH and estrogen in the acceleration of cumulus expansion via GPR30 and EGFR pathways. Aging (Albany NY) 2020; 12:20801-20816. [PMID: 33113510 PMCID: PMC7655205 DOI: 10.18632/aging.104029] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Accepted: 07/25/2020] [Indexed: 12/15/2022]
Abstract
The estrogen membrane receptor GPR30 (also known as G-protein coupled receptor 30) has recently been shown to be involved in the regulation of oocyte maturation and cumulus expansion. However, whether GPR30 expression is regulated by gonadotropin stimulation and how it participates in the regulation of the maturation process is still not clear. In this study, we explored the mechanism underlying the synergy between luteinizing hormone and 17β-estradiol (17β-E2) to improve the epidermal growth factor (EGF) response in cumulus oocyte complexes (COCs) during oocyte maturation in mice. The expression and distribution of GPR30, EGFR, and EGF-like growth factors were examined by real-time quantitative PCR, western blot, and immunofluorescence staining. Lyso-Tracker Red labeling was performed to detect the lysosomal activity in follicle granular cells (FGCs). Cumulus expansion of COCs was evaluated after in vitro maturation for 16 h. We found that EGF-like growth factors transmit LH signals to increase GRP30 levels by inhibiting protein degradation in lysosomes. Meanwhile, 17β-E2 stimulates the GPR30 signaling pathway to increase EGF receptor levels, enhancing the response ability of EGF signaling in COCs and thus promoting cumulus expansion. In conclusion, our study reveals the synergistic mechanism between LH and estrogen in the regulation of cumulus expansion during oocyte maturation process.
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Affiliation(s)
- Jie Liu
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100 Shaanxi, China.,Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling 712100, Shaanxi, China
| | - Ru Yao
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100 Shaanxi, China.,Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling 712100, Shaanxi, China
| | - Sihai Lu
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100 Shaanxi, China.,Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling 712100, Shaanxi, China
| | - Rui Xu
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100 Shaanxi, China.,Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling 712100, Shaanxi, China
| | - Hui Zhang
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100 Shaanxi, China.,Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling 712100, Shaanxi, China
| | - Juncai Wei
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100 Shaanxi, China.,Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling 712100, Shaanxi, China
| | - Chunrui Zhao
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100 Shaanxi, China.,Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling 712100, Shaanxi, China
| | - Yaju Tang
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100 Shaanxi, China.,Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling 712100, Shaanxi, China
| | - Chan Li
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100 Shaanxi, China.,Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling 712100, Shaanxi, China
| | - Haokun Liu
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100 Shaanxi, China.,Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling 712100, Shaanxi, China
| | - Xiaoe Zhao
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100 Shaanxi, China.,Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling 712100, Shaanxi, China
| | - Qiang Wei
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100 Shaanxi, China.,Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling 712100, Shaanxi, China
| | - Baohua Ma
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100 Shaanxi, China.,Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling 712100, Shaanxi, China
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The relationship between a novel evaluation parameter of premature luteinization and IVF outcomes. Reprod Biomed Online 2020; 42:323-331. [PMID: 33250412 DOI: 10.1016/j.rbmo.2020.10.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 09/23/2020] [Accepted: 10/15/2020] [Indexed: 11/23/2022]
Abstract
RESEARCH QUESTION Can premature luteinization of granulosa cells (PLGC) act as a novel parameter of premature luteinization and affect IVF outcomes? STUDY DESIGN In this retrospective cohort study, infertile patients undergoing fresh IVF cycles between January 2006 and December 2016 at the Reproductive Medicine Center in Tongji Hospital were included. A total of 42,468 cycles were conducted. Propensity score matching was carried out to match the baseline characteristics, and participants were assigned to the PLGC group and control group. The main outcomes were pregnancy rate and live birth rate. RESULTS Patient characteristics and clinical outcomes were compared before and after matching. In general, the fate of oocytes in the PLGC group was much worse than those in the control group after matching, including metaphase II rate, two-pronuclei rate, available embryo rate, blastocyst formation rate, high-quality blastocyst rate, pregnancy rate, implantation rate and live birth rate. Among those potential risk factors, gonadotrophin duration, oestradiol and progesterone on HCG day were positively associated with the occurrence of PLGC in the multivariate logistic regression model, with gonadotrophin dosage negatively related. Moreover, cumulus-oocyte complexes with PLGC showed a high correlation with elevated progesterone levels over 1.5 ng/ml. CONCLUSIONS Our findings demonstrated the adverse effect of PLGC on oocyte competency. In evaluating cumulus-oocyte complexes, PLGC provide an available novel parameter for premature luteinization judgement in clinical and individualized precise treatment. Close monitoring of progesterone level as well as critical analysis of progesterone elevation can reduce the occurrence of premature luteinization.
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Adib M, Seifati SM, Dehghani Ashkezari M, Akyash F, Khoradmehr A, Aflatoonian B. Effect of Human Testicular Cells Conditioned Medium on In Vitro Maturation and Morphology of Mouse Oocytes. INTERNATIONAL JOURNAL OF FERTILITY & STERILITY 2020; 14:175-184. [PMID: 33098383 PMCID: PMC7604698 DOI: 10.22074/ijfs.2020.6097] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 04/10/2020] [Indexed: 12/25/2022]
Abstract
Background Testicular cell conditioned medium (TCCM) has been shown to induce female germ cell development
in vitro from embryonic stem cells (ESCs). Testicular cells (TCs) secrete a variety of growth factors such as growth
differentiation factor-9 (GDF-9), bone morphogenetic protein 4 (BMP-4), stem cell factor (SCF), leukemia inhibitory
factor (LIF), and other, that could improve oocyte maturation. Here we have investigated the effect of human TCCM
(hTCCM) on in vitro maturation (IVM) and morphology of mouse oocytes. Materials and Methods In this experimental study, 360 germinal vesicle (GV) oocytes were obtained from NMRI
mice, aged 4-6 weeks that had received 5 IU pregnant mare's serum gonadotropin (PMSG) 48 hours before. GV
oocytes were subjected to IVM. 120 GV oocytes were cultured in each medium; hTCCM as the test group, DMEM
+ 20%FBS as the control group and Ham’s F10 + HFF medium as the sham group. The rates of the IVM and perivi-
telline space (PVS) changes were recorded at 8, 16 and 24 hours after culture. The metaphase II (MII) oocytes were
subjected for in vitro fertilization (IVF) and the fertilization rate was evaluated after 1, 2, and 3 days. Results There was a significant difference between the maturation rates in hTCCM (31.67% MII) and the control [0% MII,
P<0.05, (7.5% MI, 52.5% deg. and 40%GV)] groups but there was not a significant difference between the maturation rates
in hTCCM and the sham group (53.33% MII, P>0.05). IVF success rate for MII oocytes obtained from IVM in the hTCCM
group was 28.94% (n=11). Our data showed that hTCCM is an effective medium for GV oocyte growth and maturation
compared to the control medium. Conclusion Our findings show that TCCM supports oocyte IVM in mice and affect oocyte morphology.
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Affiliation(s)
- Maryam Adib
- Medical Biotechnology Research Center, Ashkezar Branch, Islamic Azad University, Ashkezar, Yazd, Iran
| | - Seyed Morteza Seifati
- Medical Biotechnology Research Center, Ashkezar Branch, Islamic Azad University, Ashkezar, Yazd, Iran. Electronic Address:
| | | | - Fatemeh Akyash
- Stem Cell Biology Research Center, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.,Research and Clinical Center for Infertility, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.,Department of Reproductive Biology, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.,Genetics and Fertility Unit, Erfan Hospital, Tehran, Iran
| | - Arezoo Khoradmehr
- Research and Clinical Center for Infertility, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.,The Persian Gulf Marine Biotechnology Research Center, The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Behrouz Aflatoonian
- Stem Cell Biology Research Center, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.Electronic Address:.,Department of Reproductive Biology, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.,Department of Advanced Medical Sciences and Technologies, School of Paramedicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
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122
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Richani D, Dunning KR, Thompson JG, Gilchrist RB. Metabolic co-dependence of the oocyte and cumulus cells: essential role in determining oocyte developmental competence. Hum Reprod Update 2020; 27:27-47. [PMID: 33020823 DOI: 10.1093/humupd/dmaa043] [Citation(s) in RCA: 124] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 08/19/2020] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Within the antral follicle, the oocyte is reliant on metabolic support from its surrounding somatic cells. Metabolism plays a critical role in oocyte developmental competence (oocyte quality). In the last decade, there has been significant progress in understanding the metabolism of the cumulus-oocyte complex (COC) during its final stages of growth and maturation in the follicle. Certain metabolic conditions (e.g. obesity) or ART (e.g. IVM) perturb COC metabolism, providing insights into metabolic regulation of oocyte quality. OBJECTIVE AND RATIONALE This review provides an update on the progress made in our understanding of COC metabolism, and the metabolic conditions that influence both meiotic and developmental competence of the oocyte. SEARCH METHODS The PubMed database was used to search for peer-reviewed original and review articles. Searches were performed adopting the main terms 'oocyte metabolism', 'cumulus cell metabolism', 'oocyte maturation', 'oocyte mitochondria', 'oocyte metabolism', 'oocyte developmental competence' and 'oocyte IVM'. OUTCOMES Metabolism is a major determinant of oocyte quality. Glucose is an essential requirement for both meiotic and cytoplasmic maturation of the COC. Glucose is the driver of cumulus cell metabolism and is essential for energy production, extracellular matrix formation and supply of pyruvate to the oocyte for ATP production. Mitochondria are the primary source of ATP production within the oocyte. Recent advances in real-time live cell imaging reveal dynamic fluctuations in ATP demand throughout oocyte maturation. Cumulus cells have been shown to play a central role in maintaining adequate oocyte ATP levels by providing metabolic support through gap junctional communication. New insights have highlighted the importance of oocyte lipid metabolism for oocyte oxidative phosphorylation for ATP production, meiotic progression and developmental competence. Within the last decade, several new strategies for improving the developmental competence of oocytes undergoing IVM have emerged, including modulation of cyclic nucleotides, the addition of precursors for the antioxidant glutathione or endogenous maturation mediators such as epidermal growth factor-like peptides and growth differentiation factor 9/bone morphogenetic protein 15. These IVM additives positively alter COC metabolic endpoints commonly associated with oocyte competence. There remain significant challenges in the study of COC metabolism. Owing to the paucity in non-invasive or in situ techniques to assess metabolism, most work to date has used in vitro or ex vivo models. Additionally, the difficulty of measuring oocyte and cumulus cell metabolism separately while still in a complex has led to the frequent use of denuded oocytes, the results from which should be interpreted with caution since the oocyte and cumulus cell compartments are metabolically interdependent, and oocytes do not naturally exist in a naked state until after fertilization. There are emerging tools, including live fluorescence imaging and photonics probes, which may provide ways to measure the dynamic nature of metabolism in a single oocyte, potentially while in situ. WIDER IMPLICATIONS There is an association between oocyte metabolism and oocyte developmental competence. Advancing our understanding of basic cellular and biochemical mechanisms regulating oocyte metabolism may identify new avenues to augment oocyte quality and assess developmental potential in assisted reproduction.
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Affiliation(s)
- Dulama Richani
- School of Women's and Children's Health, Fertility & Research Centre, University of New South Wales Sydney, Sydney, NSW, Australia
| | - Kylie R Dunning
- Robinson Research Institute, Adelaide Medical School, The University of Adelaide, Adelaide, SA, Australia.,Australian Research Council Centre of Excellence for Nanoscale BioPhotonics, The University of Adelaide, Adelaide, SA, Australia.,Institute for Photonics and Advanced Sensing, The University of Adelaide, Adelaide, SA, Australia
| | - Jeremy G Thompson
- Robinson Research Institute, Adelaide Medical School, The University of Adelaide, Adelaide, SA, Australia.,Australian Research Council Centre of Excellence for Nanoscale BioPhotonics, The University of Adelaide, Adelaide, SA, Australia.,Institute for Photonics and Advanced Sensing, The University of Adelaide, Adelaide, SA, Australia
| | - Robert B Gilchrist
- School of Women's and Children's Health, Fertility & Research Centre, University of New South Wales Sydney, Sydney, NSW, Australia
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Kowsar R, Mansouri A, Sadeghi N, Abadi MHA, Ghoreishi SM, Sadeghi K, Miyamoto A. A multilevel analysis identifies the different relationships between amino acids and the competence of oocytes matured individually or in groups. Sci Rep 2020; 10:16082. [PMID: 32999417 PMCID: PMC7528030 DOI: 10.1038/s41598-020-73225-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Accepted: 09/11/2020] [Indexed: 11/03/2022] Open
Abstract
High-protein diets contribute to an increase in urea follicular concentrations associated with decreased fertility. Urea has been shown to interfere with the epidermal growth factor (EGF)/EGFR system, which has been shown to have a beneficial effect during in vitro maturation (IVM) of oocytes. Of note, the number of cumulus-oocyte complexes (COCs) in the maturation medium can change the maturation and the developmental competence of COCs. Therefore, it was hypothesized that, the presence of urea and EGF may have a differential effect on the depletion/appearance of AAs and competence of COCs matured individually (I-IVM system) or in groups (G-IVM system). In the G-IVM system, COCs increased consumption (depletion) of AAs compared with other groups in the presence of high-level urea (40 mg/dl) + EGF (10 ng/ml). In the I-IVM system, the non-cleaved COCs depleted more AAs than the cleaved COCs, in particular in the presence of urea. The combination of urea and EGF increased the depletion of AAs in the G-IVM system. However, the EGF abrogated the urea-induced depletion of AAs by the I-IVM COCs. The use of N-acetyl-L-cysteine as an EGFR inhibitor canceled urea-induced depletion of AAs. This shows the inhibiting effect of urea over the EGF/EGFR system. In the presence of urea + EGF, COCs had a lower degree of developmental competence than control in both I- and G-IVM systems. Arginine had the best predictive power to identify highly competent COCs in the G-IVM system, while glutamine was the best predictor of the cleavage in the I-IVM system. In conclusion, this multi-level study shows that COCs matured individually or in groups may have different association with AAs metabolism. These findings provide new insights into the relationships between AA metabolism and the subsequent developmental competence of COCs.
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Affiliation(s)
- Rasoul Kowsar
- Department of Animal Sciences, College of Agriculture, Isfahan University of Technology, 84156-83111, Isfahan, Iran. .,Global Agromedicine Research Center (GAMRC), Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido, 080-8555, Japan.
| | - Alireza Mansouri
- Global Agromedicine Research Center (GAMRC), Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido, 080-8555, Japan
| | - Nima Sadeghi
- FKA, Animal Husbandry and Agriculture Co, Isfahan, Iran
| | - Mohammad Heidaran Ali Abadi
- Department of Animal Sciences, College of Agriculture, Isfahan University of Technology, 84156-83111, Isfahan, Iran
| | - Seyed Mehdi Ghoreishi
- Department of Animal Sciences, College of Agriculture, Shiraz University, Shiraz, Iran
| | - Khaled Sadeghi
- Department of Animal Sciences, College of Agriculture, Isfahan University of Technology, 84156-83111, Isfahan, Iran
| | - Akio Miyamoto
- Global Agromedicine Research Center (GAMRC), Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido, 080-8555, Japan
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Lu X, Duan A, Ma X, Liang S, Deng T. Knockdown of CYP19A1 in Buffalo Follicular Granulosa Cells Results in Increased Progesterone Secretion and Promotes Cell Proliferation. Front Vet Sci 2020; 7:539496. [PMID: 33102564 PMCID: PMC7545956 DOI: 10.3389/fvets.2020.539496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Accepted: 08/24/2020] [Indexed: 11/13/2022] Open
Abstract
Cytochrome P450 aromatase 19A1 (CYP19A1) is a critical enzyme in estrogen synthesis. However, the effect of CYP19A1 on cell growth and hormone secretion of buffalo follicular granulosa cells (BFGCs) is poorly understood. The objective of this study was to assess the role of CYP19A1 in cell proliferation and hormone secretion of BFGCs by knocking down CYP19A1 mRNA expression. The mRNA expression level of CYP19A1 gene was knocked down in BFGCs using the siCYP19A1-296 fragment with the best interference efficiency of 72.63%, as affirmed by real-time quantitative PCR (qPCR) and cell morphology analysis. The CYP19A1 knockdown promoted the proliferation of BFGCs through upregulating the mRNA expression levels of six proliferation-related genes (CCND1, CCNE1, CCNB1, CDK2, CDKN1A, and CDKN1B). Moreover, CYP19A1 knockdown increased (P < 0.05) the concentrations of progesterone secretion (P4) in BFGCs through increasing the mRNA expression levels of three steroidogenic genes (HSD17B1, HSD17B7, and CYP17A1). Our data further found that the FSH could inhibit the mRNA expression level of CYP19A1 in BFGCs, while LH obtains the opposite effect. These findings showed that the CYP19A1 knockdown had a regulatory role in the hormone secretion and cell proliferation in BFGCs.
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Affiliation(s)
- Xingrong Lu
- Guangxi Key Laboratory of Buffalo Genetics, Breeding and Reproduction Technology, Guangxi Buffalo Research Institute, Chinese Academy of Agricultural Science, Ministry of Agriculture, Nanning, China
| | - Anqin Duan
- Guangxi Key Laboratory of Buffalo Genetics, Breeding and Reproduction Technology, Guangxi Buffalo Research Institute, Chinese Academy of Agricultural Science, Ministry of Agriculture, Nanning, China
| | - Xiaoya Ma
- Guangxi Key Laboratory of Buffalo Genetics, Breeding and Reproduction Technology, Guangxi Buffalo Research Institute, Chinese Academy of Agricultural Science, Ministry of Agriculture, Nanning, China
| | - Shasha Liang
- Guangxi Key Laboratory of Buffalo Genetics, Breeding and Reproduction Technology, Guangxi Buffalo Research Institute, Chinese Academy of Agricultural Science, Ministry of Agriculture, Nanning, China
| | - Tingxian Deng
- Guangxi Key Laboratory of Buffalo Genetics, Breeding and Reproduction Technology, Guangxi Buffalo Research Institute, Chinese Academy of Agricultural Science, Ministry of Agriculture, Nanning, China
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125
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Zangeneh FZ, Bagheri M, Shoushtari MS, Naghizadeh MM. Expression of ADR-α1, 2 and ADR-β2 in cumulus cell culture of infertile women with polycystic ovary syndrome and poor responder who are a candidate for IVF: the novel strategic role of clonidine in this expression. J Recept Signal Transduct Res 2020; 41:263-272. [PMID: 32878560 DOI: 10.1080/10799893.2020.1806320] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
OBJECTIVE Alpha and beta-adrenoceptors (ADR-α1, 2, and β2) play a regulatory role in the folliculogenesis and steroidogenesis in the ovarian follicles. This study aimed to measure these adrenoceptors mRNA and its protein levels in cumulus cells (CCs) culture of poor ovarian reserve (POR) and polycystic ovarian syndrome (PCOS) infertile women (IVF candidate) and the effect of clonidine treatment at CCs culture. METHODS This case/control study was conducted in 2017 includes a control (donation oocytes) and two studies (PCO and POR) groups. The ovulation induction drugs were prescribed in all groups. After the oocyte puncture, the follicular fluid was collected and CCs were isolated were cultured. RNA was extracted and cDNA was synthesized and designed the primer for the ADR-α1, 2 and ADR-β2 gene expression. The protein levels were investigated by Western Blot. RESULTS The results showed a high level of three adrenergic expressions in PCO women compared to the control group (p-value <.001), which can be reduced by clonidine. POR group showed a significant decrease in the gene expression of ADR-α1 (p-value = .004) and ADR-α2 (p-value = .003) compared to the control group and clonidine treatment had no effect. CONCLUSION The significant increase of three adrenoceptors gene expression and protein levels in CCs culture indicate to the hyperactivity of the ovarian sympathetic nervous system at the receptor levels in women with PCOS, and clonidine confirmed it by reducing this expression. In POR women, the reduction of ADR-α1, 2 expressions maybe lead to the aging process in the ovary.
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Affiliation(s)
| | - Maryam Bagheri
- Department of Reproductive Health, Faculty of Nursing and Midwifery, Tehran University of Medical Sciences, Tehran, Iran
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Liao Q, Feng X, Li X, Chen G, Chen J, Yang B, Li K, Ai J. Lapatinib‑induced inhibition of ovarian function is counteracted by the STAT3 pathway both in vivo and in vitro. Oncol Rep 2020; 44:1127-1135. [PMID: 32582968 PMCID: PMC7388577 DOI: 10.3892/or.2020.7660] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 06/09/2020] [Indexed: 12/22/2022] Open
Abstract
The present study was designed to ascertain whether lapatinib, a tyrosine kinase inhibitor of epidermal growth factor receptor (EGFR), affects ovarian reserve and fertility potential in a mouse model. Female C57BL/6 mice were treated with either vehicle or lapatinib (100 or 200 mg/kg/day orally) for 4 weeks, after which body weight, vaginal smears, follicle numbers, serum anti‑Müllerian hormone (AMH) levels and mating outcomes were analyzed to assess the ovarian reserve and reproductive function. Slices from the ovaries of 4‑week‑old mice were cultured with lapatinib (0, 5 or 10 µM) for 24 and 48 h, and protein expression levels were assessed to validate the changes in signaling pathways. The results indicated that mice treated with 200 mg/kg lapatinib showed a slight decrease in body weight compared to those treated with vehicle or 100 mg/kg lapatinib. There was no statistical difference in estrous cyclicity among the three groups. No significant difference was observed in follicle numbers, AMH levels, histological morphologies of the ovaries or mating outcomes in the three groups of mice. Western blotting and immunohistochemical staining of the EGF receptor and its main downstream signaling pathways showed decreased phosphorylation of EGFR and mitogen‑activated protein kinase (MAPK)3/1 and increased phosphorylation of signal transducers and activators of transcription (STAT)3 in the lapatinib‑treated groups compared to the control group. Our study suggests that lapatinib has little effect on ovarian reserve and reproductive function in a mouse model. This lack of effect of lapatinib on ovarian function may be due to the activation of the STAT3 signaling pathway that counteracts the inhibitory effects of lapatinib on EGF receptors.
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Affiliation(s)
- Qiuyue Liao
- Department of Gynecology and Obstetrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Xue Feng
- Department of Gynecology and Obstetrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Xi Li
- Department of Gynecology and Obstetrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Ge Chen
- Department of Gynecology and Obstetrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Jing Chen
- Department of Gynecology and Obstetrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Bin Yang
- Department of Gynecology and Obstetrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Kezhen Li
- Department of Gynecology and Obstetrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Jihui Ai
- Department of Gynecology and Obstetrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
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127
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Zhang J, Yan L, Wang Y, Zhang S, Xu X, Dai Y, Zhao S, Li Z, Zhang Y, Xia G, Qin Y, Zhang H. In vivo and in vitro activation of dormant primordial follicles by EGF treatment in mouse and human. Clin Transl Med 2020; 10:e182. [PMID: 32997412 PMCID: PMC7520080 DOI: 10.1002/ctm2.182] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Revised: 09/09/2020] [Accepted: 09/12/2020] [Indexed: 12/25/2022] Open
Abstract
In the mammalian ovaries, dormant primordial follicles represent the reproductive reserve of individual females. Recently, stimulating the activation of primordial follicles in vitro has been practiced, making the utilization of those dormant follicles to treat female infertility possible. However, there are still lacks of effective upstream molecule and strategy to elevate follicle activation in vivo. In the current study, we revealed that growth factor EGF improved a transiently primordial follicle activation in mice by elevating the CDC42-PI3K signaling activity, and EGF treatment also improved the activation and development of human follicles in ovarian cortical pieces. Using a liquid-solid phase transition bio-gel as a carrier, an efficient in vivo activation system was established by ovarian topical EGF administration to living mice. We found that EGF treatment led to an increase of primordial follicle activation in short time but had no effect on long-term fertility in females. By establishing an inducible premature ovarian insufficiency (POI) mouse model through selectively ablating growing follicles in Zp3-Cre;iDTR mice, we further revealed that our in vivo EGF treatment system improved primordial follicle activation and ovulation of POI ovaries significantly. Taken together, our results revealed that in situ ovarian EGF administration could improve the activation of primordial follicles in living animals, and manipulating activation and development of primordial follicles in vivo might be an efficient approach to improve reproductive health in women.
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Affiliation(s)
- Jiawei Zhang
- State Key Laboratory of Agrobiotechnology, College of Biological SciencesChina Agricultural UniversityBeijing100193China
| | - Lei Yan
- Center for Reproductive MedicineShandong UniversityJinan250021China
| | - Yibo Wang
- State Key Laboratory of Agrobiotechnology, College of Biological SciencesChina Agricultural UniversityBeijing100193China
| | - Shuo Zhang
- State Key Laboratory of Agrobiotechnology, College of Biological SciencesChina Agricultural UniversityBeijing100193China
| | - Xueqiang Xu
- State Key Laboratory of Agrobiotechnology, College of Biological SciencesChina Agricultural UniversityBeijing100193China
| | - Yanli Dai
- State Key Laboratory of Agrobiotechnology, College of Biological SciencesChina Agricultural UniversityBeijing100193China
| | - Shidou Zhao
- Center for Reproductive MedicineShandong UniversityJinan250021China
| | - Zhen Li
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological SciencesChina Agricultural UniversityBeijing100193China
| | - Yan Zhang
- State Key Laboratory of Agrobiotechnology, College of Biological SciencesChina Agricultural UniversityBeijing100193China
| | - Guoliang Xia
- State Key Laboratory of Agrobiotechnology, College of Biological SciencesChina Agricultural UniversityBeijing100193China
| | - Yingying Qin
- Center for Reproductive MedicineShandong UniversityJinan250021China
| | - Hua Zhang
- State Key Laboratory of Agrobiotechnology, College of Biological SciencesChina Agricultural UniversityBeijing100193China
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128
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Liu M, Hummitzsch K, Hartanti MD, Rosario R, Bastian NA, Hatzirodos N, Bonner WM, Irving-Rodgers HF, Laven JSE, Anderson RA, Rodgers RJ. Analysis of expression of candidate genes for polycystic ovary syndrome in adult and fetal human and fetal bovine ovaries†. Biol Reprod 2020; 103:840-853. [PMID: 32678441 DOI: 10.1093/biolre/ioaa119] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 06/17/2020] [Indexed: 01/07/2023] Open
Abstract
Polycystic ovary syndrome (PCOS) appears to have a genetic predisposition and a fetal origin. We compared the expression levels of 25 PCOS candidate genes from adult control and PCOS human ovaries (n = 16) using microarrays. Only one gene was potentially statistically different. Using qRT-PCR, expression of PCOS candidate genes was examined in bovine fetal ovaries from early stages when they first developed stroma through to completion of development (n = 27; 60-270 days of gestation). The levels of ERBB3 mRNA negatively correlated with gestational age but positively with HMGA2, FBN3, TOX3, GATA4, and DENND1A.X1,2,3,4, previously identified as correlated with each other and expressed early. PLGRKT and ZBTB16, and less so IRF1, were also correlated with AMH, FSHR, AR, INSR, and TGFB1I1, previously identified as correlated with each other and expressed late. ARL14EP, FDFT1, NEIL2, and MAPRE1 were expressed across gestation and not correlated with gestational age as shown previously for THADA, ERBB4, RAD50, C8H9orf3, YAP1, RAB5B, SUOX, and KRR1. LHCGR, because of its unusual bimodal expression pattern, had some unusual correlations with other genes. In human ovaries (n = 15; <150 days of gestation), ERBB3.V1 and ERBB3.VS were expressed and correlated negatively with gestational age and positively with FBN3, HMGA2, DENND1A.V1,3,4, DENND1A.V1-7, GATA4, and FSHR, previously identified as correlated with each other and expressed early. Thus, the general lack of differential expression of candidate genes in adult ovaries contrasting with dynamic patterns of gene expression in fetal ovaries is consistent with a vulnerability to disturbance in the fetal ovary that may underpin development of PCOS.
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Affiliation(s)
- Menghe Liu
- Discipline of Obstetrics and Gynaecology, School of Medicine, Robinson Research Institute, The University of Adelaide, Adelaide, SA, Australia
| | - Katja Hummitzsch
- Discipline of Obstetrics and Gynaecology, School of Medicine, Robinson Research Institute, The University of Adelaide, Adelaide, SA, Australia
| | - Monica D Hartanti
- Discipline of Obstetrics and Gynaecology, School of Medicine, Robinson Research Institute, The University of Adelaide, Adelaide, SA, Australia.,Faculty of Medicine, Trisakti University, Jakarta, Indonesia
| | - Roseanne Rosario
- Medical Research Council Centre for Reproductive Health, University of Edinburgh, Edinburgh, UK
| | - Nicole A Bastian
- Discipline of Obstetrics and Gynaecology, School of Medicine, Robinson Research Institute, The University of Adelaide, Adelaide, SA, Australia
| | - Nicholas Hatzirodos
- Discipline of Obstetrics and Gynaecology, School of Medicine, Robinson Research Institute, The University of Adelaide, Adelaide, SA, Australia
| | - Wendy M Bonner
- Discipline of Obstetrics and Gynaecology, School of Medicine, Robinson Research Institute, The University of Adelaide, Adelaide, SA, Australia
| | - Helen F Irving-Rodgers
- Discipline of Obstetrics and Gynaecology, School of Medicine, Robinson Research Institute, The University of Adelaide, Adelaide, SA, Australia.,School of Medical Science, Griffith University, Gold Coast Campus, QLD, Australia
| | - Joop S E Laven
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynaecology, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Richard A Anderson
- Medical Research Council Centre for Reproductive Health, University of Edinburgh, Edinburgh, UK
| | - Raymond J Rodgers
- Discipline of Obstetrics and Gynaecology, School of Medicine, Robinson Research Institute, The University of Adelaide, Adelaide, SA, Australia
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129
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Perego MC, Morrell BC, Zhang L, Schütz LF, Spicer LJ. Developmental and hormonal regulation of ubiquitin-like with plant homeodomain and really interesting new gene finger domains 1 gene expression in ovarian granulosa and theca cells of cattle. J Anim Sci 2020; 98:5866609. [PMID: 32614952 DOI: 10.1093/jas/skaa205] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 06/25/2020] [Indexed: 12/27/2022] Open
Abstract
Ubiquitin-like with plant homeodomain and really interesting new gene finger domains 1 (UHRF1) is a multi-domain nuclear protein that plays an important role in epigenetics and tumorigenesis, but its role in normal ovarian follicle development remains unknown. Thus, the present study evaluated if UHRF1 mRNA abundance in bovine follicular cells is developmentally and hormonally regulated, and if changes in UHRF1 are associated with changes in DNA methylation in follicular cells. Abundance of UHRF1 mRNA was greater in granulosa cells (GC) and theca cells (TC) from small (<6 mm) than large (≥8 mm) follicles and was greater in small-follicle GC than TC. In GC and TC, fibroblast growth factor 9 (FGF9) treatment increased (P < 0.05) UHRF1 expression by 2-fold. Also, luteinizing hormone (LH) and insulin-like growth factor 1 (IGF1) increased (P < 0.05) UHRF1 expression in TC by 2-fold, and forskolin (an adenylate cyclase inducer) alone or combined with IGF1 increased (P < 0.05) UHRF1 expression by 3-fold. An E2F transcription factor inhibitor (E2Fi) decreased (P < 0.05) UHRF1 expression by 44% in TC and by 99% in GC. Estradiol, progesterone, and dibutyryl-cAMP decreased (P < 0.05) UHRF1 mRNA abundance in GC. Treatment of GC with follicle-stimulating hormone (FSH) alone had no effect but when combined with IGF1 enhanced the UHRF1 mRNA abundance by 2.7-fold. Beauvericin (a mycotoxin) completely inhibited the FSH plus IGF1-induced UHRF1 expression in small-follicle GC. Treatments that increased UHRF1 mRNA (i.e., FGF9) in GC tended to decrease (by 63%; P < 0.10) global DNA methylation, and those that decreased UHRF1 mRNA (i.e., E2Fi) in GC tended to increase (by 2.4-fold; P < 0.10) global DNA methylation. Collectively, these results suggest that UHRF1 expression in both GC and TC is developmentally and hormonally regulated, and that UHRF1 may play a role in follicular growth and development as well as be involved in ovarian epigenetic processes.
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Affiliation(s)
| | - Breanne C Morrell
- Department of Animal and Food Sciences, Oklahoma State University, Stillwater, OK
| | | | | | - Leon J Spicer
- Department of Animal and Food Sciences, Oklahoma State University, Stillwater, OK
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130
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Luo Y, Zhang R, Gao J, Wang Y, Zhang W, Qing S. The localization and expression of epidermal growth factor and epidermal growth factor receptor in bovine ovary during oestrous cycle. Reprod Domest Anim 2020; 55:822-832. [PMID: 32330337 DOI: 10.1111/rda.13690] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Accepted: 04/14/2020] [Indexed: 12/12/2022]
Abstract
Epidermal growth factor (EGF) is one of the important regulatory factors of EGF family. EGF has been indicated to effectively inhibit the apoptosis of follicular cells, to promote the proliferation of granulosa cells and the maturation of oocytes, and to induce ovulation process via binding to epidermal growth factor receptor (EGFR). However, little is known about the distribution and expression of EGF and EGFR in cattle ovary especially during oestrous cycle. In this study, the localization and expression rule of EGF and EGFR in cattle ovaries of follicular phase and luteal phase at different time points in oestrous cycle were investigated by using IHC and real-time qPCR. The results showed that EGF and EGFR in cattle ovary were mainly expressed in granulosa cells, cumulus cells, oocytes, zona pellucida, follicular fluid and theca folliculi externa of follicles. The protein and mRNA expression of EGF/EGFR in follicles changed regularly with the follicular growth wave both in follicular and in luteal phase ovaries. In follicular phase ovaries, the protein expression of EGF and EGFR was higher in antral follicles than that of those in other follicles during follicular growth stage, and the mRNA expression of EGFR was also increased in stage of dominant follicle selection. However, in luteal phase ovaries, the growth of follicles was impeded during corpus luteum development under the action of progesterone secreted by granular lutein cell. The mRNA and protein expressions of EGF and EGFR in ovarian follicles during oestrous cycle indicate that they play a role in promoting follicular development in follicular growth waves and mediating the selection process of dominant follicles.
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Affiliation(s)
- Yuru Luo
- College of Veterinary Medicine, Northwest A&F University, Yangling, China.,Beijing Shunxin Xinyuan Research Institute of Cattle Breeding, Beijing, China
| | - Ruiqi Zhang
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Jing Gao
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Yali Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Weimin Zhang
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Suzhu Qing
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
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131
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Abstract
We have previously presented a stereological analysis of organelle distribution in human prophase I oocytes. In the present study, using a similar stereological approach, we quantified the distribution of organelles in human metaphase I (MI) oocytes also retrieved after ovarian stimulation. Five MI oocytes were processed for transmission electron microscopy and a classical manual stereological technique based on point-counting with an adequate stereological grid was used. Kruskal-Wallis and Mann-Whitney U-tests with Bonferroni correction were used to compare the means of relative volumes (Vv) occupied by organelles. In all oocyte regions, the most abundant organelles were mitochondria and smooth endoplasmic reticulum (SER) elements. No significant differences were observed in Vv of mitochondria, dictyosomes, lysosomes, or SER small and medium vesicles, tubular aggregates and tubules. Significant differences were observed in other organelle distributions: cortical vesicles presented a higher Vv (P = 0.004) in the cortex than in the subcortex (0.96% vs 0.1%) or inner cytoplasm (0.96% vs 0.1%), vesicles with dense granular contents had a higher Vv (P = 0.005) in the cortex than in the subcortex (0.1% vs 0%), and SER large vesicles exhibited a higher Vv (P = 0.011) in the inner cytoplasm than in the subcortex (0.2% vs 0%). Future stereological analysis of metaphase II oocytes and a combined quantitative data of mature and immature oocytes, will enable a better understanding of oocyte organelle distribution during in vivo maturation. Combined with molecular approaches, this may help improve stimulation protocols and in vitro maturation methods.
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132
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Xiong L, Yang M, Zheng K, Wang Z, Gu S, Tong J, Liu J, Shah NA, Nie L. Comparison of Adult Testis and Ovary MicroRNA Expression Profiles in Reeves' Pond Turtles ( Mauremys reevesii) With Temperature-Dependent Sex Determination. Front Genet 2020; 11:133. [PMID: 32194623 PMCID: PMC7061903 DOI: 10.3389/fgene.2020.00133] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Accepted: 02/04/2020] [Indexed: 12/11/2022] Open
Abstract
Some differentially expressed genes (DEGs) that encode key enzymes involved in steroidogenic biosynthesis (CYP19A1) and key molecules related to gonadal functions (DMRT1, SOX9, AMH, FOXL2, WNT4, RSPO2, and GDF9) have been identified in adult gonadal RNA-seq studies of Reeves' pond turtle (Mauremys reevesii) with temperature-dependent sex determination (TSD). Gonadal functional maintenance and gametogenesis comprises a highly regulated and coordinated biological process, and increasing evidence indicates that microRNAs (miRNAs) may be involved in this dynamic program. However, it is not clear how the regulatory network comprising miRNAs changes the expression levels of these genes. In this study, miRNA sequencing of adult testis and ovary tissues from M. reevesii detected 25 known and 379 novel miRNAs, where 60 miRNAs were differentially expressed in the testis and ovary. A total of 1,477 target genes based on the differentially expressed miRNAs were predicted, where 221 target genes also exhibited differential expression. To verify the accuracy of the sequencing data, 10 differentially expressed miRNAs were validated by quantitative reverse transcription real-time PCR, and were found to be consistent with the transcriptome sequencing results. Moreover, several miRNA/target gene pairs, i.e., mre-let-7a-5p/mre-let-7e-5p and CYP19A1, mre-miR-200a-3p and DMRT1, mre-miR-101-3p and SOX9, and mre-miR-138-5p and AMH were identified. To explore the regulatory role of miRNAs, we conducted target gene enrichment analysis of the miRNAs and 221 target genes in the regulatory network. The signaling pathways related to gonadal functional maintenance and gametogenesis based on the DEGs and target genes were then compared. Our findings provide crucial information to facilitate further research into the regulatory mechanisms involving miRNAs in turtle species with TSD.
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Affiliation(s)
- Lei Xiong
- Life Science College, Provincial Key Lab of the Conservation and Exploitation Research of Biological Resources in Anhui, Anhui Normal University, Wuhu, China.,Biochemistry Department, Wannan Medical College, Wuhu, China
| | - Mengli Yang
- Life Science College, Provincial Key Lab of the Conservation and Exploitation Research of Biological Resources in Anhui, Anhui Normal University, Wuhu, China
| | - Kai Zheng
- Life Science College, Provincial Key Lab of the Conservation and Exploitation Research of Biological Resources in Anhui, Anhui Normal University, Wuhu, China
| | - Ziming Wang
- Life Science College, Provincial Key Lab of the Conservation and Exploitation Research of Biological Resources in Anhui, Anhui Normal University, Wuhu, China
| | - Shengli Gu
- Life Science College, Provincial Key Lab of the Conservation and Exploitation Research of Biological Resources in Anhui, Anhui Normal University, Wuhu, China.,Biochemistry Department, Wannan Medical College, Wuhu, China
| | - Jiucui Tong
- Life Science College, Provincial Key Lab of the Conservation and Exploitation Research of Biological Resources in Anhui, Anhui Normal University, Wuhu, China.,Biochemistry Department, Wannan Medical College, Wuhu, China
| | - Jianjun Liu
- Life Science College, Provincial Key Lab of the Conservation and Exploitation Research of Biological Resources in Anhui, Anhui Normal University, Wuhu, China
| | - Nadar Ali Shah
- Life Science College, Provincial Key Lab of the Conservation and Exploitation Research of Biological Resources in Anhui, Anhui Normal University, Wuhu, China
| | - Liuwang Nie
- Life Science College, Provincial Key Lab of the Conservation and Exploitation Research of Biological Resources in Anhui, Anhui Normal University, Wuhu, China
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133
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Zhao H, Xie S, Zhang N, Ao Z, Wu X, Yang L, Shi J, Mai R, Zheng E, Cai G, Wu Z, Li Z. Source and Follicular Fluid Treatment During the In Vitro Maturation of Recipient Oocytes Affects the Development of Cloned Pig Embryo. Cell Reprogram 2020; 22:71-81. [PMID: 32125895 DOI: 10.1089/cell.2019.0091] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Pig cloning technique is valuable in agriculture, biomedicine, and life sciences. However, the full-term developmental efficiency of cloned pig embryos is only about 1%, which limits pig cloning application. The quality of recipient oocytes greatly affects the developmental competence of cloned pig embryos. Thus, this study investigated the effects of a recipient oocyte source (in vivo matured [IVVM] oocytes vs. slaughter house-derived in vitro matured [IVTM] oocytes), and follicular liquid treatment (slaughter house-derived immature follicle-derived fluid [IFF] vs. in vivo-matured follicle-derived fluid [MFF]) during the in vitro maturation (IVM) of oocytes on the development of the cloned pig embryos. Our results showed that using IVVM oocytes to replace IVTM oocytes as recipient oocytes, and using 10% MFF IVM medium to replace 10% IFF IVM medium could enhance the development of the cloned pig embryos. IFF and MFF contained different levels of oocyte quality-related proteins, resulting in different oocyte quality-related gene expression levels and reactive oxygen species levels between the 10% MFF medium-cultured oocytes and 10% IFF medium-cultured oocytes. This study provided useful information for enhancing the pig cloning efficiency by improving the quality of recipient oocytes.
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Affiliation(s)
- Huaxing Zhao
- National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Agro-animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Shaoyi Xie
- National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Agro-animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Ning Zhang
- National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Agro-animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Zheng Ao
- Key Laboratory of Animal Genetics, Breeding and Reproduction in The Plateau Mountainous Region, Ministry of Education, College of Animal Science, Guizhou University, Guiyang, China
| | - Xiao Wu
- National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Agro-animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Liusong Yang
- National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Agro-animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Junsong Shi
- Guangdong Wens Pig Breeding Technology Co., Ltd., Wens Foodstuff Group Co., Ltd., Yunfu, China
| | - Ranbiao Mai
- Guangdong Wens Pig Breeding Technology Co., Ltd., Wens Foodstuff Group Co., Ltd., Yunfu, China
| | - Enqin Zheng
- National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Agro-animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Gengyuan Cai
- National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Agro-animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Zhenfang Wu
- National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Agro-animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Zicong Li
- National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Agro-animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou, China
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134
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Hampe ME, Rhoton-Vlasak AS. Fertility preservation in breast cancer with case-based examples for guidance. J Assist Reprod Genet 2020; 37:717-729. [PMID: 32008180 PMCID: PMC7125269 DOI: 10.1007/s10815-019-01665-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Accepted: 12/12/2019] [Indexed: 12/12/2022] Open
Abstract
With more young breast cancer survivors, a trend toward having children later in life, and improvements in assisted reproductive technology (ART), fertility preserving techniques are of growing importance prior to initiation of gonadotoxic treatments. The American Society for Clinical Oncology (ASCO) updated their Fertility Preservation in Patients with Cancer guidelines in April of 2018. ASCO continues to recognize oocyte and embryo cryopreservation as standard practice for women interested in preserving fertility and sperm cryopreservation as standard practice for men. ASCO has clarified their statement on ovarian suppression during chemotherapy as an option when standard methods are unavailable but should not be used as the sole method of fertility preservation (FP) due to conflicting evidence. ASCO also updated their statement on ovarian tissue cryopreservation, which is still labeled experimental but ASCO acknowledges that it can restore global ovarian function and could be of use in specific patients. The NCCN's Version 1.2018 Clinical Practice Guidelines® for treatment of breast cancer include fertility counseling as part of their work-up in all types of breast cancer for premenopausal women.The purpose of this review is to explain the indications and evidence for the different methods of FP for young breast cancer patients in accordance with ASCO and NCCN guidelines. The guidance will then be applied to three theoretical clinical cases in order to highlight actual use in clinical practice.
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Affiliation(s)
- Mary E Hampe
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, University of Florida College of Medicine, Gainesville, FL, USA
| | - Alice S Rhoton-Vlasak
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, University of Florida College of Medicine, Gainesville, FL, USA.
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135
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Variations in the Expression Pattern of HSP27 and MSK1 Genes During the Development of Prehierarchical Follicles in the Zi Geese ( Anser Cygnoides). ANNALS OF ANIMAL SCIENCE 2020. [DOI: 10.2478/aoas-2019-0048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
The p38MAPKs (mitogen-activated protein kinases) signaling contributes a pivotal role in mammalian ovarian follicular development; however, the knowledge regarding their expression in geese remains unresolved. The objective of the current study was to determine the spatio-temporal expression of heat shock protein 27 (HSP27) and mitogen- and stress-activated protein kinase 1 (MSK1) genes in the prehierarchical follicles during geese ovarian development. The prehierarchical follicles samples were harvested from 35- to 37-week-old healthy laying geese. HSP27 and MSK1 relative expression in various sized prehierachical follicles was detected by real-time quantitative polymerase chain reaction (RT-qPCR) and western blotting. Follicular wall localization of HSP27 and MSK1 was examined by using immunohistochemistry. Our results at mRNA level indicated that HSP27 was highly expressed in middle white follicles whereas MSK1 was predominantly expressed in small white follicles. The western blotting results for HSP27 and MSK1 were inconsistent with the RT-qPCR results in various stages of prehierachical follicular development but noticeably, HSP27 proteins were still expressed more in middle white follicles while MSK1 proteins were more abundant in primary follicles. At different stages of prehierarchical development, immunodetections in the granulosa and theca cells revealed that HSP27 was intensively localized in middle white follicles while strong detections of MSK1 were observed in large white follicles. These results indicate HSP27 and MSK1 might be associated to the key regulators of folliculogenesis in geese.
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136
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Zhang X, Xiao W, Chen K, Zhao Y, Ye F, Tang X, Du X. Serum Epidermal Growth Factor is Low in Schizophrenia and Not Affected by Antipsychotics Alone or Combined With Electroconvulsive Therapy. Front Psychiatry 2020; 11:104. [PMID: 32194452 PMCID: PMC7062789 DOI: 10.3389/fpsyt.2020.00104] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Accepted: 02/07/2020] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Epidermal growth factor (EGF) is implicated in the pathogenesis of schizophrenia, suggesting possible value as a biomarker for disease severity or treatment response. However, basal EGF levels and changes during treatment are inconsistent across studies. The goal of this study is to compare serum EGF in schizophrenia patients before and after treatment with antipsychotics alone or combined with electroconvulsive therapy (ECT). METHOD Patients meeting DSM-IV diagnostic criteria for schizophrenia were recruited from June 2013 to December 2015 (n = 186) and followed up after 8 weeks of treatment with antipsychotics alone (n = 119, drug group) or combined with ECT (n = 67, ECT group). Serum EGF levels were measured by ELISA and compared among patients and 74 healthy control subjects. Psychopathology and clinical effects were assessed using the Positive and Negative Syndrome Scale (PANSS). RESULTS Basal serum EGF was significantly lower in the entire patient cohort compared to healthy controls (P < 0.05). Repeated-measures ANOVA showed no main effect of time (F = 1.273; P = 0.261), time × group interaction (F = 1.228; P = 0.270), main effect of clinical response (F = 0.191; P = 0.663), or group × clinical interaction (F = 1.765; P = 0.186) on serum EGF. Serum EGF levels did not change significantly following antipsychotic drug or combined therapy (P > 0.05). Additionally, neither basal EGF nor EGF change was associated with the clinical response to drug or combined treatment (P > 0.05). However, baseline serum EGF was weakly associated with PANSS positive score (pretreatment: r = 0.206, posttreatment: r = 0.201) and general symptom score (pretreatment: r = -0.244). Serum EGF was also associated with duration of illness (pretreatment: r = 0.285, posttreatment: r = -0.231). CONCLUSIONS Serum EGF concentration is low in schizophrenia but is unchanged following treatment with antipsychotics alone or combined with ECT, regardless of clinical response. Thus, serum EGF is not a surrogate biomarker for treatment response and is unlikely to be involved in the therapeutic mechanisms of antipsychotics or ECT.
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Affiliation(s)
- Xiaobin Zhang
- Institute of Mental Health, Suzhou Psychiatric Hospital, The Affiliated Guangji Hospital of Soochow University, Suzhou, China.,School of Mental Health, Jining Medical University, Jining, China
| | - Wenhuan Xiao
- Department of Psychiatry, Affiliated WuTaiShan Hospital of Medical College of Yangzhou University, Yangzhou, China
| | - KuanYu Chen
- Department of Psychiatry, Affiliated WuTaiShan Hospital of Medical College of Yangzhou University, Yangzhou, China.,Department of Nursing, Huzhou University, Huzhou, China
| | - Yaqin Zhao
- Department of Psychiatry, Affiliated WuTaiShan Hospital of Medical College of Yangzhou University, Yangzhou, China
| | - Fei Ye
- Department of Psychiatry, Affiliated WuTaiShan Hospital of Medical College of Yangzhou University, Yangzhou, China
| | - Xiaowei Tang
- Department of Psychiatry, Affiliated WuTaiShan Hospital of Medical College of Yangzhou University, Yangzhou, China.,Nanjing Brain Hospital, Nanjing Medical University, Nanjing, China
| | - Xiangdong Du
- Institute of Mental Health, Suzhou Psychiatric Hospital, The Affiliated Guangji Hospital of Soochow University, Suzhou, China
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137
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Variants in BMP7 and BMP15 3'- UTRs Associated with Reproductive Traits in a Large White Pig Population. Animals (Basel) 2019; 9:ani9110905. [PMID: 31683967 PMCID: PMC6912256 DOI: 10.3390/ani9110905] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 10/04/2019] [Accepted: 10/17/2019] [Indexed: 02/07/2023] Open
Abstract
Bone morphogenetic protein 7 (BMP7) and BMP15, which encode members of the BMP family, have been identified by whole-genome resequencing as breeding-related genes that overlap with a known quantitative trait locus for reproductive traits. In this study, we investigated the effects of variants at the BMP7 and BMP15 gene loci on sow reproductive traits. We isolated 669 and 1213 bp sequences of the 3’-untranslated region (3’-UTR) of the porcine BMP7 and BMP15 genes, respectively, and detected several RNA regulatory elements, such as miRNA response elements and AU-rich elements. Pooled DNA sequencing identified two novel point mutations (viz., BMP7 c.1569A>G and BMP15 c.2366G>A) in the 3’-UTR. Association analysis showed that the c.1569A>G polymorphism was associated with the litter weight trait in a Large White pig population. Furthermore, analysis of the combined genetic effects revealed that AA/GA and AG/GG were the favorable combined genotypes for the total number of piglets born (TNB) and the total number of piglets born alive (NBA), whereas. Together, our findings confirm that BMP7 and BMP15 are candidate genes for porcine reproductive performance.
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138
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Capacitation IVM improves cumulus function and oocyte quality in minimally stimulated mice. J Assist Reprod Genet 2019; 37:77-88. [PMID: 31667700 DOI: 10.1007/s10815-019-01610-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Accepted: 10/04/2019] [Indexed: 12/27/2022] Open
Abstract
PURPOSE Oocyte in vitro maturation (IVM) is a patient-friendly reproductive technology but lower success rates than IVF have limited its uptake. Capacitation-IVM (CAPA-IVM) is an innovative new IVM system currently undergoing clinical evaluation. This study aimed to determine temporal effects of the pre-IVM phase of CAPA-IVM on cumulus function and oocyte developmental competence in mildly-stimulated mice. METHODS Immature cumulus oocyte complexes (COCs) derived from mildly stimulated (23 h PMSG) 28-day-old mice underwent pre-IVM for 0-24 h in medium containing c-type natriuretic peptide (CNP), E2, FSH and insulin, prior to IVM (CAPA-IVM). The effect of pre-IVM duration on cumulus cell function and embryo development post-CAPA-IVM/IVF was assessed. RESULTS Day 6 blastocyst rate increased incrementally with increasing pre-IVM duration: 40.6 ± 2.0%, 45.8 ± 1.2%, 52.2 ± 3.5%, 53.3 ± 5.9%, and 59.9 ± 2.5% for 0, 2, 6, 12, and 24 h pre-IVM, respectively (P < 0.01). DNA content/COC, a measure of cumulus cell proliferation, was significantly higher with 24 h pre-IVM group compared to 0, 2, or 6 h pre-IVM (P < 0.001). Pre-IVM for 24 h significantly increased cumulus expansion and mRNA expression of matrix genes Has2 and Tnfaip6 and Areg relative to no pre-IVM control (P < 0.01). Cumulus-oocyte gap-junctional communication (GJC) was maintained throughout 24 h pre-IVM (P < 0.0001), and GJC loss was slowed during the subsequent IVM phase, whilst meiotic resumption was accelerated (P < 0.05). Pre-IVM increased COC ATP and ADP content (P < 0.05), but not AMP, ATP/ADP, and energy charge. CONCLUSION The pre-IVM phase of CAPA-IVM improves the quality of IVM oocytes in a temporally dependent manner and significantly influences cumulus cell function including increased cell proliferation, cumulus expansion, and prolonged cumulus-oocyte GJC.
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139
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Abdulrahman N, Fair T. Contribution of the immune system to follicle differentiation, ovulation and early corpus luteum formation. Anim Reprod 2019; 16:440-448. [PMID: 32435287 PMCID: PMC7234072 DOI: 10.21451/1984-3143-ar2019-0087] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Accepted: 07/25/2019] [Indexed: 12/30/2022] Open
Abstract
Much of what we know about the involvement of the immune system in periovulatory follicle differentiation, ovulation and subsequent formation of the corpus luteum in cattle is drawn from the findings of studies in several mammalian livestock species. By integrating published histological data from cattle, sheep and pigs and referring back to the more comprehensive knowledge bank that exists for mouse and humans we can sketch out the key cells of the immune system and the cytokines and growth factors that they produce that are involved in follicle differentiation and luteinization, ovulation and early follicle development. These contributions are reviewed and the key findings, discussed.
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Affiliation(s)
- Noof Abdulrahman
- School of Agriculture & Food Sciences, University College Dublin, Belfield, Dublin 4, Ireland.
| | - Trudee Fair
- School of Agriculture & Food Sciences, University College Dublin, Belfield, Dublin 4, Ireland.
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140
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CD24: a marker of granulosa cell subpopulation and a mediator of ovulation. Cell Death Dis 2019; 10:791. [PMID: 31624236 PMCID: PMC6797718 DOI: 10.1038/s41419-019-1995-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2019] [Revised: 08/21/2019] [Accepted: 09/16/2019] [Indexed: 02/06/2023]
Abstract
Granulosa cells (GCs) play a critical role in driving the formation of ovarian follicles and building the cumulus-oocyte complex surrounding the ovum. We are particularly interested in assessing oocyte quality by examining the detailed gene expression profiles of human cumulus single cells. Using single-cell RNAseq techniques, we extensively investigated the single-cell transcriptomes of the cumulus GC populations from two women with normal ovarian function. This allowed us to elucidate the endogenous heterogeneity of GCs by uncovering the hidden GC subpopulation. The subsequent validation results suggest that CD24(+) GCs are essential for triggering ovulation. Treatment with human chorionic gonadotropin (hCG) significantly increases the expression of CD24 in GCs. CD24 in cultured human GCs is associated with hCG-induced upregulation of prostaglandin synthase (ARK1C1, PTGS2, PTGES, and PLA2G4A) and prostaglandin transporter (SLCO2A1 and ABCC4) expression, through supporting the EGFR-ERK1/2 pathway. In addition, it was observed that the fraction of CD24(+) cumulus GCs decreases in PCOS patients compared to that of controls. Altogether, the results support the finding that CD24 is an important mediator of ovulation and that it may also be used for therapeutic target of ovulatory disorders.
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141
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Matsubara S, Shiraishi A, Osugi T, Kawada T, Satake H. The regulation of oocyte maturation and ovulation in the closest sister group of vertebrates. eLife 2019; 8:49062. [PMID: 31573508 PMCID: PMC6786877 DOI: 10.7554/elife.49062] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 09/26/2019] [Indexed: 01/10/2023] Open
Abstract
Ascidians are the closest living relatives of vertebrates, and their study is important for understanding the evolutionary processes of oocyte maturation and ovulation. In this study, we first examined the ovulation of Ciona intestinalis Type A by monitoring follicle rupture in vitro, identifying a novel mechanism of neuropeptidergic regulation of oocyte maturation and ovulation. Ciona vasopressin family peptide (CiVP) directly upregulated the phosphorylation of extracellular signal-regulated kinase (CiErk1/2) via its receptor. CiVP ultimately activated a maturation-promoting factor, leading to oocyte maturation via germinal vesicle breakdown. CiErk1/2 also induced expression of matrix metalloproteinase (CiMMP2/9/13) in the oocyte, resulting in collagen degradation in the outer follicular cell layer and liberation of fertile oocytes from the ovary. This is the first demonstration of essential pathways regulating oocyte maturation and ovulation in ascidians and will facilitate investigations of the evolutionary process of peptidergic regulation of oocyte maturation and ovulation throughout the phylum Chordata.
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Affiliation(s)
- Shin Matsubara
- Bioorganic Research Institute, Suntory Foundation for Life Sciences, Kyoto, Japan.,Research Fellow of Japan Society for the Promotion of Science, Tokyo, Japan
| | - Akira Shiraishi
- Bioorganic Research Institute, Suntory Foundation for Life Sciences, Kyoto, Japan
| | - Tomohiro Osugi
- Bioorganic Research Institute, Suntory Foundation for Life Sciences, Kyoto, Japan
| | - Tsuyoshi Kawada
- Bioorganic Research Institute, Suntory Foundation for Life Sciences, Kyoto, Japan
| | - Honoo Satake
- Bioorganic Research Institute, Suntory Foundation for Life Sciences, Kyoto, Japan
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142
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Wu Y, Xiao H, Pi J, Zhang H, Pan A, Pu Y, Liang Z, Shen J, Du J. EGFR promotes the proliferation of quail follicular granulosa cells through the MAPK/extracellular signal-regulated kinase (ERK) signaling pathway. Cell Cycle 2019; 18:2742-2756. [PMID: 31465245 DOI: 10.1080/15384101.2019.1656952] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Follicles develop into preovulatory follicles during folliculogenesis and the majority of small yellow follicles become atretic and gets reabsorbed. In this study, based the RNA-seq results of duck ovary, epidermal growth factor receptor (EGFR) was selected as a candidate gene in follicular development and the role was explored. The results demonstrated that EGFR-P8 was the quail EGFR core promoter. It had an E2F4 binding site within EGFR core promoter. E2F4 overexpression significantly increased EGFR expression in quail granulosa cells (GCs). However, the effect was abolished when the GCs were treated with corynoxeine, an inhibitor of the mitogen-activated protein kinase/extracellular regulated protein kinase (MAPK/ERK) signaling pathway. Moreover, luciferase reporter assay and chromatin immunoprecipitation experiments showed that E2F4 upregulated the expression of EGFR expression, which increased E2 and P4 production. In addition, EGFR regulated GCs proliferation and affected follicular development. Taken together, our findings suggested that EGFR, which was regulated by E2F4, enhanced the expression of MAPK/ERK pathway components and follicular development. These results provided an important basis for an improved understanding of the MAPK/ERK pathway and new insight into the development of quail follicles.
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Affiliation(s)
- Yan Wu
- Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Science , Wuhan , China.,Key Laboratory of Animal Embryo Engineering and Molecular Breeding of Hubei Province , Wuhan , China
| | - Hongwei Xiao
- Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Science , Wuhan , China
| | - Jinsong Pi
- Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Science , Wuhan , China
| | - Hao Zhang
- Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Science , Wuhan , China
| | - Ailuan Pan
- Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Science , Wuhan , China
| | - Yuejin Pu
- Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Science , Wuhan , China
| | - Zhenhua Liang
- Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Science , Wuhan , China
| | - Jie Shen
- Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Science , Wuhan , China
| | - Jinping Du
- Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Science , Wuhan , China
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143
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Zhang T, Chen L, Han K, Zhang X, Zhang G, Dai G, Wang J, Xie K. Transcriptome analysis of ovary in relatively greater and lesser egg producing Jinghai Yellow Chicken. Anim Reprod Sci 2019; 208:106114. [PMID: 31405454 DOI: 10.1016/j.anireprosci.2019.106114] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 06/19/2019] [Accepted: 06/27/2019] [Indexed: 12/11/2022]
Abstract
Egg production is determined by the function of ovary and is regulated by the hypothalamic-pituitary-ovary axis. The mechanism by which the ovary regulates egg production, however, is still poorly understood. The purpose of this study is to compare the transcriptome difference in ovary of relatively greater and lesser egg producing chickens, and to screen candidate genes related to egg production. A RNA sequencing was performed to analyze and compare the mRNA in ovarian tissues of relatively greater and lesser egg producing chickens. A total of 4 431 new genes expressed in the chicken ovary were mined. There were 305 differentially expressed genes (DEGs) identified between the relatively greater and lesser egg producing hens. Gene ontology analysis identified five candidate genes related to egg production, including ZP2, WNT4, AMH, IGF1, and CYP17A1 genes. Tissue expression profiles indicated these five candidate genes were highly expressed in chicken ovarian tissues, indicating a potential role in regulating chicken ovarian function and egg production. The KEGG analysis indicated the neuroactive ligand-receptor interaction pathway might have an important function in regulation of egg production. In addition, four known pathways related to reproduction were detected, including the calcium signaling, wnt signaling pathway, focal adhesion, and cytokine-cytokine receptor interaction pathways. Results of the present study indicate gene expression differences in the ovarian tissues of relatively greater and lesser egg producing chickens, and identified five important candidate genes related to egg production, which provided a theoretical basis for improving egg production of Jinghai Yellow Chickens.
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Affiliation(s)
- Tao Zhang
- College of Animal Science and Technology, Yangzhou University, Jiangsu, Yangzhou 225009, China; Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, Jiangsu, Yangzhou 225009, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Eduction of China, Yangzhou University, China.
| | - Lan Chen
- College of Animal Science and Technology, Yangzhou University, Jiangsu, Yangzhou 225009, China; Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, Jiangsu, Yangzhou 225009, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Eduction of China, Yangzhou University, China.
| | - Kunpeng Han
- College of Animal Science and Technology, Yangzhou University, Jiangsu, Yangzhou 225009, China; Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, Jiangsu, Yangzhou 225009, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Eduction of China, Yangzhou University, China.
| | - Xiangqian Zhang
- College of Animal Science and Technology, Yangzhou University, Jiangsu, Yangzhou 225009, China; Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, Jiangsu, Yangzhou 225009, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Eduction of China, Yangzhou University, China.
| | - Genxi Zhang
- College of Animal Science and Technology, Yangzhou University, Jiangsu, Yangzhou 225009, China; Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, Jiangsu, Yangzhou 225009, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Eduction of China, Yangzhou University, China.
| | - Guojun Dai
- College of Animal Science and Technology, Yangzhou University, Jiangsu, Yangzhou 225009, China; Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, Jiangsu, Yangzhou 225009, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Eduction of China, Yangzhou University, China.
| | - Jinyu Wang
- College of Animal Science and Technology, Yangzhou University, Jiangsu, Yangzhou 225009, China; Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, Jiangsu, Yangzhou 225009, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Eduction of China, Yangzhou University, China.
| | - Kaizhou Xie
- College of Animal Science and Technology, Yangzhou University, Jiangsu, Yangzhou 225009, China; Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, Jiangsu, Yangzhou 225009, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Eduction of China, Yangzhou University, China.
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144
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Lv X, He C, Huang C, Wang H, Hua G, Wang Z, Zhou J, Chen X, Ma B, Timm BK, Maclin V, Dong J, Rueda BR, Davis JS, Wang C. Timely expression and activation of YAP1 in granulosa cells is essential for ovarian follicle development. FASEB J 2019; 33:10049-10064. [PMID: 31199671 DOI: 10.1096/fj.201900179rr] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Although the role of the Hippo signaling pathway in development and tumorigenesis has been extensively studied in multiple organs, its role in ovarian follicle development remains largely unknown. Here, we report that Yes-Associated Protein 1 (YAP1), the major effector of Hippo signaling, is spatiotemporally expressed in ovarian granulosa cells and plays a critical role in the regulation of follicle development. We found that the active form of YAP1 (nuclear YAP1) was predominantly expressed in proliferative granulosa cells, whereas the inactive form of YAP1 (cytoplasmic YAP1) was mainly detected in luteal cells (terminally differentiated granulosa cells). Pharmacological inhibition of YAP1 activity disrupted mouse ovarian follicle development in vitro and in vivo. Foxl2 promoter-driven knockout of Yap1 in ovarian granulosa cells resulted in increased apoptosis of granulosa cells, decreased number of corpora lutea, reduced ovarian size, and subfertility in transgenic mice. However, Cyp19a1 promoter-driven knockout of Yap1 in differentiated granulosa cells of preovulatory follicles and luteal cells of corpora lutea had no effect on ovarian morphology and fertility. Mechanistic studies demonstrated that YAP1 interacted with epidermal growth factor receptor and TGF-β signaling pathways to regulate granulosa cell proliferation, differentiation, and survival. Results from this study identify YAP1 as a critical regulator of granulosa cell proliferation and differentiation. Balanced expression and activation of YAP1 is essential for follicle development and successful reproduction. YAP1 is a promising target for treatment of subfertility associated with abnormal granulosa cell function.-Lv, X., He, C., Huang, C., Wang, H., Hua, G., Wang, Z., Zhou, J., Chen, X., Ma, B., Timm, B. K., Maclin, V., Dong, J., Rueda, B. R., Davis, J. S., Wang, C. Timely expression and activation of YAP1 in granulosa cells is essential for ovarian follicle development.
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Affiliation(s)
- Xiangmin Lv
- Vincent Center for Reproductive Biology, Department of Obstetrics and Gynecology, Massachusetts General Hospital-Harvard Medical School, Boston, Massachusetts, USA.,Department of Obstetrics and Gynecology, Olson Center for Women's Health, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Chunbo He
- Vincent Center for Reproductive Biology, Department of Obstetrics and Gynecology, Massachusetts General Hospital-Harvard Medical School, Boston, Massachusetts, USA.,Department of Obstetrics and Gynecology, Olson Center for Women's Health, University of Nebraska Medical Center, Omaha, Nebraska, USA.,College of Animal Sciences and Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Cong Huang
- Vincent Center for Reproductive Biology, Department of Obstetrics and Gynecology, Massachusetts General Hospital-Harvard Medical School, Boston, Massachusetts, USA
| | - Hongbo Wang
- Vincent Center for Reproductive Biology, Department of Obstetrics and Gynecology, Massachusetts General Hospital-Harvard Medical School, Boston, Massachusetts, USA.,Guangdong Province Key Laboratory of Liver Disease Research, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Guohua Hua
- Department of Obstetrics and Gynecology, Olson Center for Women's Health, University of Nebraska Medical Center, Omaha, Nebraska, USA.,College of Animal Sciences and Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Zhengfeng Wang
- Department of Obstetrics and Gynecology, Olson Center for Women's Health, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Jin Zhou
- Department of Obstetrics and Gynecology, Olson Center for Women's Health, University of Nebraska Medical Center, Omaha, Nebraska, USA.,Department of Obstetrics and Gynecology, The Eighth Affiliated Hospital of Sun Yat-Sen University, Shenzhen, China
| | - Xingcheng Chen
- Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, Nebraska, USA.,Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Bowen Ma
- Department of Obstetrics and Gynecology, Olson Center for Women's Health, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Barbara K Timm
- Heartland Center for Reproductive Medicine, PC, Omaha, Nebraska, USA
| | - Victoria Maclin
- Heartland Center for Reproductive Medicine, PC, Omaha, Nebraska, USA
| | - Jixin Dong
- Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Bo R Rueda
- Vincent Center for Reproductive Biology, Department of Obstetrics and Gynecology, Massachusetts General Hospital-Harvard Medical School, Boston, Massachusetts, USA
| | - John S Davis
- Department of Obstetrics and Gynecology, Olson Center for Women's Health, University of Nebraska Medical Center, Omaha, Nebraska, USA.,Veterans Affairs Nebraska-Western Iowa Health Care System, Omaha, Nebraska, USA
| | - Cheng Wang
- Vincent Center for Reproductive Biology, Department of Obstetrics and Gynecology, Massachusetts General Hospital-Harvard Medical School, Boston, Massachusetts, USA.,Department of Obstetrics and Gynecology, Olson Center for Women's Health, University of Nebraska Medical Center, Omaha, Nebraska, USA
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145
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Role of Major Endocannabinoid-Binding Receptors during Mouse Oocyte Maturation. Int J Mol Sci 2019; 20:ijms20122866. [PMID: 31212770 PMCID: PMC6627642 DOI: 10.3390/ijms20122866] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 06/06/2019] [Accepted: 06/08/2019] [Indexed: 01/02/2023] Open
Abstract
Endocannabinoids are key-players of female fertility and potential biomarkers of reproductive dysfunctions. Here, we investigated localization and expression of cannabinoid receptor type-1 and -2 (CB1R and CB2R), G-protein coupled receptor 55 (GPR55), and transient receptor potential vanilloid type 1 channel (TRPV1) in mouse oocytes collected at different stages of in vivo meiotic maturation (germinal vesicle, GV; metaphase I, MI; metaphase II, MII) through qPCR, confocal imaging, and western blot. Despite the significant decrease in CB1R, CB2R, and GPR55 mRNAs occurring from GV to MII, CB2R and GPR55 protein contents increased during the same period. At GV, only CB1R was localized in oolemma, but it completely disappeared at MI. TRPV1 was always undetectable. When oocytes were in vitro matured with CB1R and CB2R but not GPR55 antagonists, a significant delay of GV breakdown occurred, sustained by elevated intraoocyte cAMP concentration. Although CBRs antagonists did not affect polar body I emission or chromosome alignment, GPR55 antagonist impaired in ~75% of oocytes the formation of normal-sized MI and MII spindles. These findings open a new avenue to interrogate oocyte pathophysiology and offer potentially new targets for the therapy of reproductive alterations.
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146
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Poulsen LLC, Englund ALM, Wissing MLM, Yding Andersen C, Borup R, Grøndahl ML. Human granulosa cells function as innate immune cells executing an inflammatory reaction during ovulation: a microarray analysis. Mol Cell Endocrinol 2019; 486:34-46. [PMID: 30802528 DOI: 10.1016/j.mce.2019.02.014] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 01/16/2019] [Accepted: 02/18/2019] [Indexed: 02/07/2023]
Abstract
Ovulation has been compared to a local inflammatory reaction. We performed an in silico study on a unique, PCR validated, transcriptome microarray study to evaluate if known inflammatory mechanisms operate during ovulation. The granulosa cells were obtained in paired samples at two different time points during ovulation (just before and 36 hours after ovulation induction) from nine women receiving fertility treatment. A total of 259 genes related to inflammation became significantly upregulated during ovulation (2-80 fold, p<0.05), while specific leukocyte markers were absent. The genes and pathway analysis indicated NF-KB-, MAPK- and JAK/STAT signalling (p<1.0E-10) as the major pathways involved in danger recognition and cytokine signalling to initiate inflammation. Upregulated genes further encoded enzymes in eicosanoid production, chemo-attractants, coagulation factors, cell proliferation factors involved in tissue repair, and anti-inflammatory factors to resolve the inflammation again. We conclude that granulosa cells, without involvement from the innate immune system, can orchestrate ovulation as a complete sterile inflammatory reaction.
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Affiliation(s)
- Liv la Cour Poulsen
- Zealand Fertility Clinic, Zealand University Hospital, Lykkebækvej 14, 4600, Køge, Denmark.
| | | | | | - Claus Yding Andersen
- Laboratory of Reproductive Biology, University Hospital of Copenhagen, Rigshospitalet, Blegdamsvej 9, 2100, Copenhagen Ø, Denmark
| | - Rehannah Borup
- Center for Chromosome Stability, Department of Cellular and Molecular Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200, Copenhagen N, Denmark
| | - Marie Louise Grøndahl
- Herlev Fertility Clinic, University Hospital of Copenhagen, Herlev and Gentofte Hospital, Herlev Ringvej 75, 2730, Herlev, Denmark
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147
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Temporal expression pattern of steroid-metabolizing enzymes in bovine COC during in vitro maturation employing different gonadotropin concentrations. Theriogenology 2019; 131:182-192. [PMID: 30981973 DOI: 10.1016/j.theriogenology.2019.03.028] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 03/10/2019] [Accepted: 03/30/2019] [Indexed: 01/17/2023]
Abstract
Steroid hormones are regulators in the fine-tuned process of follicular development. During final maturation in vivo a switch from oestradiol (E2) to progesterone (P4) dominance within the follicle is well-described. This change is accompanied by the resumption of meiosis and results in the maturation of the oocyte. It also suggests the important role of these hormones. However, present in vitro maturation (IVM) systems do not completely mimic the in vivo situation, resulting in oocytes of reduced quality. Aim of the study was to determine the temporal pattern of steroid hormone concentrations in the IVM medium of bovine cumulus-oocyte-complexes (COC) at defined time points. The influence of different gonadotropin supplementations during IVM on oocyte maturation, as well as the molecular quality of the oocytes and their corresponding cumulus cells was investigated. COCs were obtained from abattoir-derived ovaries and matured in medium added with different compounds of gonadotropins (eCG/hCG; FSH/LH, each at 0.05 IU or 0.01 IU; only FSH; without gonadotropins) employing a standard protocol without oil overlay. In experiment 1, medium, oocytes and cumulus cells were collected at different time points (0 h [control], 4 h, 8 h, 12 h, 16 h, 20 h, 24 h) after IVM in just eCG/hCG-supplemented medium. In experiment 2, medium, oocytes and cumulus cells were collected at 0 h (control) and after 24 h of IVM with all above-named supplements. The E2 concentration remained similar during IVM whereas P4 concentration increased during experiment 1. No significant changes could be determined after the addition of different gonadotropins (experiment 2). These results suggest that during IVM the temporal pattern of E2 and P4 did not correspond with the pattern during final maturation in vivo. RT-qPCR was used to assess the relative abundance of developmentally important genes in oocytes (BMP15; GDF9; ZAR1; PGR; PGRMC1/2; G6PD; StAR; ESR1/2; SULT1E1; STS; SOAT) and cumulus cells (ESR1/2; FSHR; LHCGR; CYP19A1; HSD3B1; PGR; PGRMC1/2; SULT1E1; STS; SOAT) at all collection points in both experiments. Most transcripts follow a time-regulated mRNA expression pattern during the entire in vitro maturation period. In addition, the expression of the analyzed transcripts was not influenced by the different gonadotropin supplementations during the IVM period. In all, this underlines that present conditions of IVM do not reflect the in vivo situation and require further optimisation.
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148
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Abstract
Neuregulin-1 (NRG1) has been shown to be associated with the regulation of inflammation and ovulation. The aim of this study was to investigate the relationship between serum NRG1 levels and various clinical and metabolic parameters in women with polycystic ovary syndrome (PCOS). This case-controlled study included 38 women with PCOS and 46 age and body mass index (BMI)-matched controls without PCOS. The serum NRG1 levels of the women with PCOS were found to be significantly lower compared to the control group. The high sensitivity C-reactive protein (hs-CRP) levels of the PCOS subjects were significantly higher than in the control group. The circulating NRG1 levels were negatively correlated with a homeostasis model assessment of insulin resistance (HOMA-IR) and the hs-CRP in the PCOS group. There is no significant correlation between the circulating NRG1 levels and the serum insulin in the PCOS group. There was a trend toward high NRG1 levels in the PCOS subjects with high BMI, but the difference failed to reach a statistical significance. Decreased NRG1 levels in PCOS subjects may be associated with insulin resistance and a low-grade chronic inflammation. Impact statement What is already known on this subject? Although there have been many studies related to NRG1, we could not find any study explaining the relationship between NRG1 and PCOS. This study provides first and novel insights into the relationship between serum NRG1 levels and the insulin resistance in women with PCOS. What do the results of this study add? A decline in the NRG1 levels in PCOS may be associated with insulin resistance and a low-grade chronic inflammation. What are the implications of these findings for clinical practice and/or further research? Decreased NRG1 levels may play an important role in the reproductive and endocrine properties of PCOS. We think that NRG1 research may be contribute to the clarification of PCOS pathophysiology. Future research investigating NRG1 levels in obese and non-obese cases, as well as in ovulatory and anovulatory PCOS patients, will make a significant contribution to the resolution of the mystery under PCOS aetiology.
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Affiliation(s)
- Haldun Arpacı
- a Department of Obstetrics and Gynecology, School of Medicine , Kafkas University , Kars , Turkey
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149
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Broekmans FJ. Individualization of FSH Doses in Assisted Reproduction: Facts and Fiction. Front Endocrinol (Lausanne) 2019; 10:181. [PMID: 31080437 PMCID: PMC6497745 DOI: 10.3389/fendo.2019.00181] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 03/04/2019] [Indexed: 11/30/2022] Open
Abstract
The art of ovarian stimulation for IVF/ICSI treatment using exogenous FSH should be balanced against the relative contribution of other steps of the ART process such as the IVF-lab-phase and the Embryo-Transfer. The aim of ovarian stimulation is to obtain a certain number of oocytes, that will enable the best probability of achieving a live birth. It has been suggested that more oocytes will create a better prospect for pregnancy, but studies on the question whether the retrieval of a few oocytes less or more will make the difference are not clearly supportive for this mantra. Personalization strategies have been the subject of many studies over the past 20 years. Creating the optimal response in a patient in terms of live birth prognosis as well as OHSS risks may be based on information from the Ovarian Reserve testing using the Antral Follicle Count or Anti-Mullerian Hormone, the patient's bodyweight, the ovarian response in a previous cycle, and the dosage level of FSH. Taken together, steering the ovarian response into a supposed optimal range may appear difficult as the interrelation for each of these factors with the egg number is weak. Using OR testing for choosing FSH dosage, compared to a standard normal dosage of 150 IU, has been studied in several trials. Dosage individualization, in general, does not appear to improve the prospects for live birth, but the reduction in OHSS risk may be substantial. This implies that the use of high dosages of FSH in predicted LOW responders lacks any cost-benefit for the patient and may be abandoned, while in predicted HIGH responders, reduction of the usual dosage level of 150 IU may create better safety, provided that in case of an unexpected LOW response cancelation of the cycle is refrained from. In view of recent developments in using GnRH agonist triggering of final oocyte maturation, the trend could be that with the Antagonist co-medication system and a standard dosage of 150 IU of FSH, prior ovarian reserve testing may become futile, as safety can be managed well in actual HIGH responders by replacing the high dose hCG trigger.
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Son WY, Henderson S, Cohen Y, Dahan M, Buckett W. Immature Oocyte for Fertility Preservation. Front Endocrinol (Lausanne) 2019; 10:464. [PMID: 31379739 PMCID: PMC6650526 DOI: 10.3389/fendo.2019.00464] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Accepted: 06/26/2019] [Indexed: 12/19/2022] Open
Abstract
In vitro maturation (IVM) of human immature oocytes has been offered to women who are at risk of developing ovarian hyperstimulation syndrome (OHSS) caused by gonadotropin stimulation, such as PCO(S) patients or who have poor ovarian reserve. Cryopreservation of oocytes matured in vivo obtained in IVF cycles has improved after implementing the vitrification method and many successful results have been reported. Now, this procedure can be successfully offered to fertility preservation programs for patients who are in danger of losing their ovarian function due to medical or social reasons, and to oocyte donation programs. This vitrification technique has also been applied to cryopreserve oocytes obtained from IVM program. Some advantages of oocytes vitrification related with IVM are: (1) eliminating costly drugs and frequent monitoring; (2) completing treatment within 2 to 10 days (3) avoiding the use of hormones in cancer patients with hormone-sensitive tumors; and (4) retrieving oocytes at any point in menstrual cycle, even in the luteal phase. In addition, immature oocytes can also be collected from extracorporeal ovarian biopsy specimens or ovaries during caesarian section. Theoretically, there are two possible approaches for preserving immature oocytes: oocyte cryopreservation at the mature stage (after IVM) and oocyte cryopreservation at the Germinal Vesicle (GV)-stage (before IVM). Both vitrification of immature oocyte before/after IVM is not currently satisfactory. Nevertheless, many IVF centers worldwide are doing IVM oocyte cryopreservation as one of the options to preserve fertility for female cancer. Therefore, more studies are urgently required to improve IVM- and vitrification method to successfully preserve oocytes collected from cancer patients. In this review, present oocyte maturation mechanisms and recent progress of human IVM cycles will be discussed first, followed by some studies of the vitrification of human IVM oocyte.
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