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Inoue Y, Munakata Y, Shinozawa A, Kawahara-Miki R, Shirasuna K, Iwata H. Prediction of major microRNAs in follicular fluid regulating porcine oocyte development. J Assist Reprod Genet 2020; 37:2569-2579. [PMID: 32780318 DOI: 10.1007/s10815-020-01909-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 07/30/2020] [Indexed: 01/13/2023] Open
Abstract
PURPOSE The aim of the present study was to identify key microRNAs (miRNAs) in porcine follicular fluid (FF) that regulate oocyte growth. METHODS miRNAs contained in FF were determined by small RNA-seq of exosome RNA. Upstream regulator miRNA was determined by ingenuity pathway analysis using differentially expressed genes in granulosa cells (GCs) between small follicles (1-2 mm in diameter) and large follicles (3-5 mm), and between follicles containing oocytes of high developmental ability and follicles containing oocytes of low developmental ability. The candidate miRNAs overlapping among the three miRNAs group were determined. Lastly, the effect of supplementation with FF, exosome-depleted FFs, or each miRNA on in vitro oocyte growth was examined. RESULTS The miRNAs determined were miR-17, -27, -92a, and -145. These miRNAs were found in the spent culture medium of oocytes and granulosa cells complexes and serum by small RNA sequencing. Culturing of oocytes and granulosa cells complexes collected from porcine early antral follicles (0.5-0.7 mm in diameter) with FF for 14 days improved oocyte growth; depletion of exosomes from the FFs neutralized the beneficial effect observed. miR-92a mimic increased the antrum formation and diameter, together with acetylated levels of H4K12 in oocytes. In addition, supplementation of miRNA mimics miR-17b, -92a, and -145b improved the rate of chromatin configuration, and miR-17b and -92a mimics improved the developmental ability of oocytes to the blastocyst stage. CONCLUSION miR-17, -92a, and -145 are major miRNA candidates in follicular fluids regulating oocyte growth.
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Affiliation(s)
- Yuki Inoue
- Department of Animal Sciences, Tokyo University of Agriculture, Kanagawa, 243-0034, Japan
| | - Yasuhisa Munakata
- Department of Animal Sciences, Tokyo University of Agriculture, Kanagawa, 243-0034, Japan
| | - Akihisa Shinozawa
- NODAI Genome Research Center, Tokyo University of Agriculture, Tokyo, 156-8502, Japan
| | - Ryoka Kawahara-Miki
- NODAI Genome Research Center, Tokyo University of Agriculture, Tokyo, 156-8502, Japan
| | - Koumei Shirasuna
- Department of Animal Sciences, Tokyo University of Agriculture, Kanagawa, 243-0034, Japan
| | - Hisataka Iwata
- Department of Animal Sciences, Tokyo University of Agriculture, Kanagawa, 243-0034, Japan.
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52
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Qasemi M, Amidi F. Extracellular microRNA profiling in human follicular fluid: new biomarkers in female reproductive potential. J Assist Reprod Genet 2020; 37:1769-1780. [PMID: 32642870 PMCID: PMC7468023 DOI: 10.1007/s10815-020-01860-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 06/10/2020] [Indexed: 12/11/2022] Open
Abstract
MicroRNAs (miRNAs) are small, about 22 nucleotides, non-coding RNAs which regulate a wide range of gene expression during post-transcriptional stage. They are released into intra- and extracellular microenvironments and play vital roles in different physiological and pathological pathways. Due to easy accessibility, detection of extracellular miRNAs in body fluids, e.g. serum, plasma, cerebrospinal fluid, and follicular fluid, has been explored in recent years. Since miRNAs are stable at unsuitable conditions, scientists have been investigating to use them as biomarkers in different fields of medicines. It goes without saying that experienced biomarkers would be required in reproductive medicine as well. Biomarkers can help clinicians and embryologists to diagnose disorders and assess the embryo quality via molecular pattern which is more reliable than nowadays routine methods. Follicular fluid as a noninvasive fluid in assisted reproductive techniques (ART) has attracted researchers as a rich pool for biomarkers, and miRNAs are not exception. Although miRNA biomarkers in reproduction field are located on their initial stage and there is a long path to move forward, several meticulous studies have been performed and discovered their associations with various conditions. In this regard, we summarize the reported miRNAs in follicular fluid and their correlations with female infertility and ART success rate, while subsequent investigations are required.
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Affiliation(s)
- Maryam Qasemi
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Fardin Amidi
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
- Department of Infertility, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran.
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53
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Almiñana C, Bauersachs S. Extracellular vesicles: Multi-signal messengers in the gametes/embryo-oviduct cross-talk. Theriogenology 2020; 150:59-69. [PMID: 32088033 DOI: 10.1016/j.theriogenology.2020.01.077] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Accepted: 01/29/2020] [Indexed: 02/06/2023]
Abstract
Extracellular vesicles (EVs) have emerged as novel cell-to-cell communication mediators in physiological and pathological scenarios. Their ability to transfer their molecular cargo (RNAs, proteins and lipids) from one cell to another, in the vicinity or far from the cell of origin, together with their capacity of exerting a functional impact on the target cell make them valuable diagnostic tools as well as therapeutic vectors in a variety of diseases. In the reproductive field, there is a growing interest in the role of EVs in gamete/embryo-maternal communication and their potential implications in the reproductive success. In this review, we provide current knowledge of EVs secreted by the oviduct (oEVs) and embryos (eEVs), since both have been proposed as key players in the crucial two-way dialogue between the oviduct (lining epithelium and secretions) and the embryo that ensures successful pregnancy. Both oEVs and eEVs molecular cargos and their potential role as multi-signal messengers in the gametes/embryo-oviduct cross-talk and in the embryo-to-embryo communication in different species are also addressed. Eventually, a comparative analysis between oEVs and eEVs has been performed to shed some light on common and specific cargos responsible for their functions supporting the early reproductive events and as prime candidate molecules for improving fertility and assisted reproductive technologies outcomes.
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Affiliation(s)
- Carmen Almiñana
- University of Zurich, Genetics and Functional Genomics Group, Clinic of Reproductive Medicine, VetSuisse Faculty, Zurich, Switzerland; UMR85 PRC, INRA, CNRS 7247, Université de Tours, IFCE, 37380, Nouzilly, France.
| | - Stefan Bauersachs
- University of Zurich, Genetics and Functional Genomics Group, Clinic of Reproductive Medicine, VetSuisse Faculty, Zurich, Switzerland.
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54
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Battaglia R, Musumeci P, Ragusa M, Barbagallo D, Scalia M, Zimbone M, Lo Faro JM, Borzì P, Scollo P, Purrello M, Vento EM, Di Pietro C. Ovarian aging increases small extracellular vesicle CD81 + release in human follicular fluid and influences miRNA profiles. Aging (Albany NY) 2020; 12:12324-12341. [PMID: 32554857 PMCID: PMC7343446 DOI: 10.18632/aging.103441] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 05/25/2020] [Indexed: 12/13/2022]
Abstract
Ovarian aging affects female reproductive potential and is characterized by alterations in proteins, mRNAs and non-coding RNAs inside the ovarian follicle. Ovarian somatic cells and the oocyte communicate with each other secreting different molecules into the follicular fluid, by extracellular vesicles. The cargo of follicular fluid vesicles may influence female reproductive ability; accordingly, analysis of extracellular vesicle content could provide information about the quality of the female germ cell.In order to identify the most significant deregulated microRNAs in reproductive aging, we quantified the small extracellular vesicles in human follicular fluid from older and younger women and analyzed the expression of microRNAs enclosed inside the vesicles. We found twice as many small extracellular vesicles in the follicular fluid from older women and several differentially expressed microRNAs. Correlating microRNA expression profiles with vesicle number, we selected 46 deregulated microRNAs associated with aging. Bioinformatic analyses allowed us to identify six miRNAs involved in TP53 signaling pathways. Specifically, miR-16-5p, miR214-3p and miR-449a were downregulated and miR-125b, miR-155-5p and miR-372 were upregulated, influencing vesicle release, oocyte maturation and stress response. We believe that this approach allowed us to identify a battery of microRNAs strictly related to female reproductive aging.
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Affiliation(s)
- Rosalia Battaglia
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania 95123, Italy
| | - Paolo Musumeci
- Department of Physics and Astronomy, University of Catania, Catania 95123, Italy
| | - Marco Ragusa
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania 95123, Italy.,Oasi Research Institue-IRCCS, Troina 94018, Italy
| | - Davide Barbagallo
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania 95123, Italy
| | - Marina Scalia
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania 95123, Italy
| | | | - Josè Maria Lo Faro
- Department of Physics and Astronomy, University of Catania, Catania 95123, Italy.,CNR-IMM, Catania 95123, Italy.,IPCF-CNR, viale F. Messina 98158, Italy
| | | | - Paolo Scollo
- IVF Unit, Cannizzaro Hospital, Catania 95126, Italy
| | - Michele Purrello
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania 95123, Italy
| | | | - Cinzia Di Pietro
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania 95123, Italy
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55
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Sun X, Ma X, Yang X, Zhang X. Exosomes and Female Infertility. Curr Drug Metab 2020; 20:773-780. [PMID: 31749422 DOI: 10.2174/1389200220666191015155910] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 07/28/2019] [Accepted: 09/04/2019] [Indexed: 12/16/2022]
Abstract
BACKGROUND Exosomes are small Extracellular Vesicles (EVs) (40-100 nm) secreted by living cells and mediate the transmission of information between cells. The number and contents of exosomes are associated with diseases such as inflammatory diseases, cancer, metabolic diseases and what we are focusing in this passage-female infertility. OBJECTIVE This review focused on the role of exosomes in oocyte development, declined ovarian function, PCOS, uterine diseases, endometrial receptivity and fallopian tube dysfunction in the female. METHODS We conducted an extensive search for research articles involving relationships between exosomes and female infertility on the bibliographic database. RESULTS It has been reported that exosomes can act as a potential therapeutic device to carry cargoes to treat female infertility. However, the pathophysiological mechanisms of exosomes in female infertility have not been entirely elucidated. Further researches are needed to explore the etiology and provide evidence for potential clinical treatment. CONCLUSIONS This review systematically summarized the role exosomes play in female infertility and its potential as drug delivery.
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Affiliation(s)
- Xiaoyan Sun
- Gansu Key Laboratory of Reproductive Medicine and Embryology, The First Hospital of Lanzhou University, Lanzhou, China
| | - Xiaoling Ma
- Gansu Key Laboratory of Reproductive Medicine and Embryology, The First Hospital of Lanzhou University, Lanzhou, China
| | - Xia Yang
- Gansu Key Laboratory of Reproductive Medicine and Embryology, The First Hospital of Lanzhou University, Lanzhou, China
| | - Xuehong Zhang
- Gansu Key Laboratory of Reproductive Medicine and Embryology, The First Hospital of Lanzhou University, Lanzhou, China
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56
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Rodosthenous RS, Baccarelli AA, Mansour A, Adir M, Israel A, Racowsky C, Hauser R, Bollati V, Machtinger R. Supraphysiological Concentrations of Bisphenol A Alter the Expression of Extracellular Vesicle-Enriched miRNAs From Human Primary Granulosa Cells. Toxicol Sci 2020; 169:5-13. [PMID: 30690568 DOI: 10.1093/toxsci/kfz020] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Bisphenol A (BPA) is a widely used chemical that has been detected in follicular fluid and associated with adverse reproductive effects. Granulosa cells have an important role in follicular growth and oocyte maturation, however, little is known about the biological mechanisms of BPA toxicity on human granulosa cells. In this study, we exposed primary granulosa cells to different concentrations of BPA (0, 20, 200, 2000, and 20 000 ng/ml) and used quantitative polymerase chain reaction to measure the expression levels of miRNAs enriched in extracellular vesicles (EV-enriched miRNAs), and cellular levels of selected target genes of differentially expressed EV-enriched miRNAs. We found that exposure to 20 000 ng/ml BPA was associated with decreased levels of EV-miR-27b-3p (FC = 0.58, p = .04) and increased levels of its biologically relevant target genes FADD (FC = 1.22, p = .01), IGF1 (FC = 1.59, p = .06), and PPARG (FC = 1.73, p = .001) as compared with the control. In addition, we observed that under the same exposure conditions, the expression levels of miR-27b-3p in granulosa cells were also downregulated (FC = 0.65, p = .03) as compared with the control. Our findings suggest that both cellular and extracellular changes in gene expression may mediate BPA toxicity in granulosa cells.
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Affiliation(s)
| | - Andrea A Baccarelli
- Human Epigenetics Laboratory, Columbia University, Mailman School of Public Health, New York, New York
| | - Abdallah Mansour
- Sheba Medical Center, Ramat-Gan and Sackler School of Medicine, Tel-Aviv University, Tel Aviv, Israel
| | - Michal Adir
- Sheba Medical Center, Ramat-Gan and Sackler School of Medicine, Tel-Aviv University, Tel Aviv, Israel
| | - Ariel Israel
- Department of Family Medicine, Clalit Health Services, Jerusalem, Israel
| | - Catherine Racowsky
- Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
| | - Russ Hauser
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Valentina Bollati
- EPIGET - Epidemiology, Epigenetics and Toxicology Lab, Department of Clinical Sciences and Community Health, University of Milan, Milano, Italy
| | - Ronit Machtinger
- Sheba Medical Center, Ramat-Gan and Sackler School of Medicine, Tel-Aviv University, Tel Aviv, Israel
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57
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Smits K, Gansemans Y, Tilleman L, Van Nieuwerburgh F, Van De Velde M, Gerits I, Ververs C, Roels K, Govaere J, Peelman L, Deforce D, Van Soom A. Maternal Recognition of Pregnancy in the Horse: Are MicroRNAs the Secret Messengers? Int J Mol Sci 2020; 21:ijms21020419. [PMID: 31936511 PMCID: PMC7014256 DOI: 10.3390/ijms21020419] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 12/26/2019] [Accepted: 01/07/2020] [Indexed: 01/22/2023] Open
Abstract
The signal for maternal recognition of pregnancy (MRP) has still not been identified in the horse. High-throughput molecular biology at the embryo-maternal interface has substantially contributed to the knowledge on pathways affected during MRP, but an integrated study in which proteomics, transcriptomics and miRNA expression can be linked directly is currently lacking. The aim of this study was to provide such analysis. Endometrial biopsies, uterine fluid, embryonic tissues, and yolk sac fluid were collected 13 days after ovulation during pregnant and control cycles from the same mares. Micro-RNA-Sequencing was performed on all collected samples, mRNA-Sequencing on the same tissue samples and mass spectrometry was conducted previously on the same fluid samples. Differential expression of miRNA, mRNA and proteins showed high conformity with literature and confirmed involvement in pregnancy establishment, embryo quality, steroid synthesis and prostaglandin regulation, but the link between differential miRNAs and their targets was limited and did not indicate the identity of an unequivocal signal for MRP in the horse. Differential expression at the embryo-maternal interface was prominent, highlighting a potential role of miRNAs in embryo-maternal communication during early pregnancy in the horse. These data provide a strong basis for future targeted studies.
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Affiliation(s)
- Katrien Smits
- Department of Reproduction, Obstetrics and Herd Health, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
- Correspondence:
| | - Yannick Gansemans
- Laboratory of Pharmaceutical Biotechnology, Faculty of Pharmaceutical Sciences, Ghent University, Ottergemsesteenweg 460, 9000 Gent, Belgium
| | - Laurentijn Tilleman
- Laboratory of Pharmaceutical Biotechnology, Faculty of Pharmaceutical Sciences, Ghent University, Ottergemsesteenweg 460, 9000 Gent, Belgium
| | - Filip Van Nieuwerburgh
- Laboratory of Pharmaceutical Biotechnology, Faculty of Pharmaceutical Sciences, Ghent University, Ottergemsesteenweg 460, 9000 Gent, Belgium
| | - Margot Van De Velde
- Department of Reproduction, Obstetrics and Herd Health, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
| | - Ilse Gerits
- Department of Reproduction, Obstetrics and Herd Health, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
| | - Cyrillus Ververs
- Department of Reproduction, Obstetrics and Herd Health, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
| | - Kim Roels
- Department of Reproduction, Obstetrics and Herd Health, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
| | - Jan Govaere
- Department of Reproduction, Obstetrics and Herd Health, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
| | - Luc Peelman
- Animal Genetics Lab, Faculty of Veterinary Medicine, Ghent University, Heidestraat 19, 9820 Merelbeke, Belgium
| | - Dieter Deforce
- Laboratory of Pharmaceutical Biotechnology, Faculty of Pharmaceutical Sciences, Ghent University, Ottergemsesteenweg 460, 9000 Gent, Belgium
| | - Ann Van Soom
- Department of Reproduction, Obstetrics and Herd Health, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
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58
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Wen L, Liu Q, Xu J, Liu X, Shi C, Yang Z, Zhang Y, Xu H, Liu J, Yang H, Huang H, Qiao J, Tang F, Chen ZJ. Recent advances in mammalian reproductive biology. SCIENCE CHINA. LIFE SCIENCES 2020; 63:18-58. [PMID: 31813094 DOI: 10.1007/s11427-019-1572-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Accepted: 10/22/2019] [Indexed: 01/05/2023]
Abstract
Reproductive biology is a uniquely important topic since it is about germ cells, which are central for transmitting genetic information from generation to generation. In this review, we discuss recent advances in mammalian germ cell development, including preimplantation development, fetal germ cell development and postnatal development of oocytes and sperm. We also discuss the etiologies of female and male infertility and describe the emerging technologies for studying reproductive biology such as gene editing and single-cell technologies.
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Affiliation(s)
- Lu Wen
- Beijing Advanced Innovation Center for Genomics, Department of Obstetrics and Gynecology Third Hospital, College of Life Sciences, Peking University, Beijing, 100871, China
| | - Qiang Liu
- Beijing Advanced Innovation Center for Genomics, Department of Obstetrics and Gynecology Third Hospital, College of Life Sciences, Peking University, Beijing, 100871, China
| | - Jingjing Xu
- International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, 200030, China
| | - Xixi Liu
- Beijing Advanced Innovation Center for Genomics, Department of Obstetrics and Gynecology Third Hospital, College of Life Sciences, Peking University, Beijing, 100871, China
| | - Chaoyi Shi
- International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, 200030, China
| | - Zuwei Yang
- International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, 200030, China
| | - Yili Zhang
- International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, 200030, China
| | - Hong Xu
- International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, 200030, China
| | - Jiang Liu
- CAS Key Laboratory of Genome Sciences and Information, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, 100101, China.
| | - Hui Yang
- Institute of Neuroscience, State Key Laboratory of Neuroscience, Key Laboratory of Primate Neurobiology, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Research Center for Brain Science and Brain-Inspired Intelligence, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, 200031, China.
| | - Hefeng Huang
- International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, 200030, China.
| | - Jie Qiao
- Beijing Advanced Innovation Center for Genomics, Department of Obstetrics and Gynecology Third Hospital, College of Life Sciences, Peking University, Beijing, 100871, China.
| | - Fuchou Tang
- Beijing Advanced Innovation Center for Genomics, Department of Obstetrics and Gynecology Third Hospital, College of Life Sciences, Peking University, Beijing, 100871, China.
| | - Zi-Jiang Chen
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, 250021, China.
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Li X, Zhang W, Fu J, Xu Y, Gu R, Qu R, Li L, Sun Y, Sun X. MicroRNA-451 is downregulated in the follicular fluid of women with endometriosis and influences mouse and human embryonic potential. Reprod Biol Endocrinol 2019; 17:96. [PMID: 31744497 PMCID: PMC6862852 DOI: 10.1186/s12958-019-0538-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Accepted: 11/04/2019] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Previous work demonstrated that there are numerous miRNAs in human follicular fluids, some of which are associated with reproductive diseases. In the current study, we sought to determine whether microRNAs (miRNAs) in the follicular fluid (FF) are differentially expressed between women with and without endometriosis and to uncover the association of miRNAs with the oocyte and embryonic development potential. METHODS FF was harvested from 30 women with endometriosis and 30 women without who underwent in vitro fertilization treatment at the University Hospital between February and December 2016. The FF samples were subjected to miRNA profiling and validation via quantitative reverse transcription polymerase chain reaction analysis. Mouse/human metaphase-I (MI) oocytes were harvested and micro-injected with an miR-451 inhibitor, and the effects of miR-451 knockdown on Wnt/WNT signalling genes were investigated. RESULTS Oocyte number, fertilization rate, and number of available embryos were decreased significantly in women with endometriosis relative to those without endometriosis. Hsa-miR-451 in FF was downregulated in endometriosis patients relative to control subjects (P < 0.01). Moreover, the proportions of mouse/human MI oocytes that developed into 2-pronuclei (2PN), 2-cell, 8-10-cell and blastocyst-stage embryos were affected by miR-451 knockdown in mouse/human oocytes. Components of the Wnt signalling pathway were aberrantly expressed in the mouse/human oocytes and embryos in the miR-451 inhibitor-injected group. CONCLUSIONS miR-451 was downregulated in FF samples from endometriosis patients and was modestly effective in distinguishing endometriosis patients from non-endometriosis patients. miR-451 downregulation in mouse and human oocytes affected pre-implantation embryogenesis by suppressing the Wnt signalling pathway. This miRNA might serve as a novel biomarker of oocyte and embryo quality in assisted reproductive treatment.
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Affiliation(s)
- Xiong Li
- Shanghai Ji Ai Genetics & IVF Institute, Obstetrics and Gynecology Hospital, Fudan University, Shanghai, 200011, China
| | - Wenbi Zhang
- Shanghai Ji Ai Genetics & IVF Institute, Obstetrics and Gynecology Hospital, Fudan University, Shanghai, 200011, China
| | - Jing Fu
- Shanghai Ji Ai Genetics & IVF Institute, Obstetrics and Gynecology Hospital, Fudan University, Shanghai, 200011, China
| | - Yan Xu
- Shanghai Ji Ai Genetics & IVF Institute, Obstetrics and Gynecology Hospital, Fudan University, Shanghai, 200011, China
| | - Ruihuan Gu
- Shanghai Ji Ai Genetics & IVF Institute, Obstetrics and Gynecology Hospital, Fudan University, Shanghai, 200011, China
| | - Ronggui Qu
- Shanghai Ji Ai Genetics & IVF Institute, Obstetrics and Gynecology Hospital, Fudan University, Shanghai, 200011, China
| | - Lu Li
- Shanghai Ji Ai Genetics & IVF Institute, Obstetrics and Gynecology Hospital, Fudan University, Shanghai, 200011, China
| | - Yijuan Sun
- Shanghai Ji Ai Genetics & IVF Institute, Obstetrics and Gynecology Hospital, Fudan University, Shanghai, 200011, China
| | - Xiaoxi Sun
- Shanghai Ji Ai Genetics & IVF Institute, Obstetrics and Gynecology Hospital, Fudan University, Shanghai, 200011, China.
- Key Laboratory of Female Reproductive Endocrine Related Diseases, Obstetrics and Gynecology Hospital, Fudan University, Shanghai, 200011, China.
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60
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Cimadomo D, Carmelo R, Parrotta EI, Scalise S, Santamaria G, Alviggi E, De Angelis MT, Sarro G, Vaiarelli A, Venturella R, Rienzi L, Zullo F, Ubaldi FM, Cuda G. Similar miRNomic signatures characterize the follicular fluids collected after follicular and luteal phase stimulations in the same ovarian cycle. J Assist Reprod Genet 2019; 37:149-158. [PMID: 31701304 DOI: 10.1007/s10815-019-01607-6] [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: 07/12/2019] [Accepted: 10/04/2019] [Indexed: 12/19/2022] Open
Abstract
PURPOSE To detect putative differences in the miRNomic profile of follicular fluids collected after follicular-phase-stimulation (FPS-FFs) and paired luteal-phase-stimulation (LPS-FFs) in the same ovarian cycles (DuoStim). METHODS Exploratory study at a private IVF center and University involving FPS-FFs and paired-LPS-FFs collected from 15 reduced ovarian reserve and advanced maternal age women undergoing DuoStim (n = 30 paired samples). The samples were combined in 6 paired pools (5 samples each) and balanced according to maternal age and number of cumulus-oocyte-complexes. Micro-RNAs were isolated and sequenced. Four miRNAs were then selected for further validation on 6 single pairs of FPS-FFs and LPS-FFs by qPCR. RESULTS Forty-three miRNAs were detected in both FPS-FFs and paired-LPS-FFs after sequencing and no statistically significant differences were reported. Thirty-three KEGG pathways were identified as regulated from the detected miRNAs. Four miRNAs (miR-146b, miR-191, miR-320a, and miR-483) were selected for qPCR validation since consistently expressed in our samples and possibly involved in the regulation/establishment of a healthy follicular environment. Again, no significant differences were reported between FPS-FFs and paired-LPS-FFs, also when the analysis was corrected for maternal age and number of cumulus-oocyte-complexes in generalized linear models. CONCLUSIONS These data complement the embryological, chromosomal, and clinical evidence of equivalence between FPS and LPS published to date.
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Affiliation(s)
- Danilo Cimadomo
- GENERA centers for reproductive medicine, Clinica Valle Giulia, Rome, Italy.,GENERA centers for reproductive medicine, Clinica Ruesch, Naples, Italy
| | - Ramona Carmelo
- GENERA centers for reproductive medicine, Clinica Ruesch, Naples, Italy
| | | | - Stefania Scalise
- Università degli Studi Magna Graecia di Catanzaro, Catanzaro, Italy
| | | | - Erminia Alviggi
- GENERA centers for reproductive medicine, Clinica Ruesch, Naples, Italy
| | | | - Gianmarco Sarro
- Università degli Studi Magna Graecia di Catanzaro, Catanzaro, Italy
| | - Alberto Vaiarelli
- GENERA centers for reproductive medicine, Clinica Valle Giulia, Rome, Italy
| | | | - Laura Rienzi
- GENERA centers for reproductive medicine, Clinica Valle Giulia, Rome, Italy.,GENERA centers for reproductive medicine, Clinica Ruesch, Naples, Italy
| | - Fulvio Zullo
- Università degli Studi Magna Graecia di Catanzaro, Catanzaro, Italy
| | | | - Giovanni Cuda
- Università degli Studi Magna Graecia di Catanzaro, Catanzaro, Italy
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Andrade GM, del Collado M, Meirelles FV, da Silveira JC, Perecin F. Intrafollicular barriers and cellular interactions during ovarian follicle development. Anim Reprod 2019; 16:485-496. [PMID: 32435292 PMCID: PMC7234062 DOI: 10.21451/1984-3143-ar2019-0051] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 05/03/2019] [Indexed: 12/20/2022] Open
Abstract
Follicles are composed of different interdependent cell types including oocytes, cumulus, granulosa, and theca cells. Follicular cells and oocytes exchange signaling molecules from the beginning of the development of the primordial follicles until the moment of ovulation. The follicular structure transforms during folliculogenesis; barriers form between the germ and the somatic follicular cells, and between the somatic follicular cells. As such, communication systems need to adapt to maintain the exchange of signaling molecules. Two critical barriers are established at different stages of development: the zona pellucida, separating the oocyte and the cumulus cells limiting the communication through specific connections, and the antrum, separating subpopulations of follicular cells. In both situations, communication is maintained either by the development of specialized connections as transzonal projections or by paracrine signaling and trafficking of extracellular vesicles through the follicular fluid. The bidirectional communication between the oocytes and the follicle cells is vital for driving folliculogenesis and oogenesis. These communication systems are associated with essential functions related to follicular development, oocyte competence, and embryonic quality. Here, we discuss the formation of the zona pellucida and antrum during folliculogenesis, and their importance in follicle and oocyte development. Moreover, this review discusses the current knowledge on the cellular mechanisms such as the movement of molecules via transzonal projections, and the exchange of extracellular vesicles by follicular cells to overcome these barriers to support female gamete development. Finally, we highlight the undiscovered aspects related to intrafollicular communication among the germ and somatic cells, and between the somatic follicular cells and give our perspective on manipulating the above-mentioned cellular communication to improve reproductive technologies.
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Affiliation(s)
- Gabriella Mamede Andrade
- Faculty of Animal Sciences and Food Engineering, Department of Veterinary Medicine, University of São Paulo, Pirassununga, São Paulo, Brazil.
| | - Maite del Collado
- Faculty of Animal Sciences and Food Engineering, Department of Veterinary Medicine, University of São Paulo, Pirassununga, São Paulo, Brazil.
| | - Flávio Vieira Meirelles
- Faculty of Animal Sciences and Food Engineering, Department of Veterinary Medicine, University of São Paulo, Pirassununga, São Paulo, Brazil.
| | - Juliano Coelho da Silveira
- Faculty of Animal Sciences and Food Engineering, Department of Veterinary Medicine, University of São Paulo, Pirassununga, São Paulo, Brazil.
| | - Felipe Perecin
- Faculty of Animal Sciences and Food Engineering, Department of Veterinary Medicine, University of São Paulo, Pirassununga, São Paulo, Brazil.
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62
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Martinez RM, Baccarelli AA, Liang L, Dioni L, Mansur A, Adir M, Bollati V, Racowsky C, Hauser R, Machtinger R. Body mass index in relation to extracellular vesicle-linked microRNAs in human follicular fluid. Fertil Steril 2019; 112:387-396.e3. [PMID: 31146888 PMCID: PMC6663626 DOI: 10.1016/j.fertnstert.2019.04.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 03/28/2019] [Accepted: 04/01/2019] [Indexed: 12/17/2022]
Abstract
OBJECTIVE To study whether increased body mass index is associated with altered expression of extracellular vesicle microRNAs (EV-linked miRNAs) in human follicular fluid. DESIGN Cross-sectional study. SETTING Tertiary-care university-affiliated center. PATIENT(S) One hundred thirty-three women undergoing in vitro fertilization (IVF) were recruited from January 2014 to August 2016. INTERVENTIONS(S) None. MAIN OUTCOME MEASURE(S) EV-linked miRNAs were isolated from follicular fluid and their expression profiles were measured with the use of the Taqman Open Array Human miRNA panel. EV-linked miRNAs were globally normalized and inverse-normal transformed. Associations between body mass index (BMI) and EV-linked miRNA outcomes were analyzed by means of multivariate linear regression and principal component analysis. RESULT(S) Eighteen EV-linked miRNAs were associated with an increase in BMI after adjusting for age, ethnicity, smoking status, and batch effects. Hsa-miR-328 remained significant after false discovery rate adjustments. Principal component analyses identified the first principal component to account for 40% of the variation in our EV-linked miRNA dataset, and adjusted linear regression found that the first principal component was significantly associated with BMI after multiple testing adjustments. Using Kyoto Encyclopedia of Genes and Genomes enrichment analyses, we predicted gene targets of EV-linked miRNA in silico and identified PI3K-Akt signaling, ECM-receptor interaction, focal adhesion, FoxO signaling, and oocyte meiosis pathways. CONCLUSION(S) These results show that a 1-unit increase in BMI is associated with altered follicular fluid expression of EV-linked miRNAs that may influence follicular and oocyte developmental pathways. Our findings provide potential insight into a mechanistic explanation for the reduced fertility rates associated with increased BMI.
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Affiliation(s)
- Rosie M Martinez
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts; Laboratory of Precision Environmental Biosciences, Department of Environmental Health Sciences, Columbia Mailman School of Public Health, New York, New York
| | - Andrea A Baccarelli
- Laboratory of Precision Environmental Biosciences, Department of Environmental Health Sciences, Columbia Mailman School of Public Health, New York, New York
| | - Liming Liang
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Laura Dioni
- Epidemiology, Epigenetics, and Toxicology Laboratory, Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - Abdallah Mansur
- Department of Obstetrics and Gynecology, Sheba Medical Center and Sackler School of Medicine, Tel-Aviv University, Ramat-Gan, Israel
| | - Michal Adir
- Department of Obstetrics and Gynecology, Sheba Medical Center and Sackler School of Medicine, Tel-Aviv University, Ramat-Gan, Israel
| | - Valentina Bollati
- Epidemiology, Epigenetics, and Toxicology Laboratory, Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - Catherine Racowsky
- Department of Obstetrics, Gynecology, and Reproductive Biology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Russ Hauser
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Ronit Machtinger
- Department of Obstetrics and Gynecology, Sheba Medical Center and Sackler School of Medicine, Tel-Aviv University, Ramat-Gan, Israel.
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63
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Cell-Free, Embryo-Specific sncRNA as a Molecular Biological Bridge between Patient Fertility and IVF Efficiency. Int J Mol Sci 2019; 20:ijms20122912. [PMID: 31207900 PMCID: PMC6627040 DOI: 10.3390/ijms20122912] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 06/07/2019] [Accepted: 06/12/2019] [Indexed: 01/11/2023] Open
Abstract
Small noncoding RNAs (sncRNAs) are key regulators of the majority of human reproduction events. Understanding their function in the context of gametogenesis and embryogenesis will allow insight into the possible causes of in vitro fertilization (IVF) implantation failure. The aim of this study was to analyze the sncRNA expression profile of the spent culture media on day 4 after fertilization and to reveal a relationship with the morphofunctional characteristics of gametes and resultant embryos, in particular, with the embryo development and implantation potential. Thereto, cell-free, embryo-specific sncRNAs were identified by next generation sequencing (NGS) and quantified by reverse transcription coupled with polymerase chain reaction (RT-PCR) in real-time. Significant differences in the expression level of let-7b-5p, let-7i-5p, piR020401, piR16735, piR19675, piR20326, and piR17716 were revealed between embryo groups of various morphological gradings. Statistically significant correlations were found between the expression profiles of piR16735 and piR020401 with the oocyte-cumulus complex number, let-7b-5p and piR020401 with metaphase II oocyte and two pronuclei embryo numbers, let-7i-5p and piR20497 with the spermatozoid count per milliliter of ejaculate, piR19675 with the percentage of linearly motile spermatozoids, let-7b-5p with the embryo development grade, and let-7i-5p with embryo implantation. According to partial least squares discriminant analysis (PLS-DA), the expression levels of let-7i-5p (Variable Importance in Projection score (VIP) = 1.6262), piR020401 (VIP = 1.45281), and piR20497 (VIP = 1.42765) have the strongest influences on the implantation outcome.
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64
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Ragusa M, Barbagallo D, Chioccarelli T, Manfrevola F, Cobellis G, Di Pietro C, Brex D, Battaglia R, Fasano S, Ferraro B, Sellitto C, Ambrosino C, Roberto L, Purrello M, Pierantoni R, Chianese R. CircNAPEPLD is expressed in human and murine spermatozoa and physically interacts with oocyte miRNAs. RNA Biol 2019; 16:1237-1248. [PMID: 31135264 DOI: 10.1080/15476286.2019.1624469] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Circular RNAs (circRNAs) have a critical role in the control of gene expression. Their function in spermatozoa (SPZ) is unknown to date. Twenty-eight genes, involved in SPZ/testicular and epididymal physiology, were given in circBase database to find which of them may generate circular transcripts. We focused on circNAPEPLDiso1, one of the circular RNA isoforms of NAPEPLD transcript, because expressed in human and murine SPZ. In order to functionally characterize circNAPEPLDiso1 as potential microRNA (miRNA) sponge, we performed circNAPEPLDiso1-miR-CATCH and then profiled the expression of 754 miRNAs, by using TaqMan® Low Density Arrays. Among them, miRNAs 146a-5p, 203a-3p, 302c-3p, 766-3p and 1260a (some of them previously shown to be expressed in the oocyte), resulted enriched in circNAPEPLDiso1-miR-CATCHed cell lysate: the network of interactions generated from their validated targets was centred on a core of genes involved in the control of cell cycle. Moreover, computational analysis of circNAPEPLDiso1 sequence also showed its potential translation in a short form of NAPEPLD protein. Interestingly, the expression analysis in murine-unfertilized oocytes revealed low and high levels of circNAPEPLDiso1 and circNAPEPLDiso2, respectively. After fertilization, circNAPEPLDiso1 expression significantly increased, instead circNAPEPLDiso2 expression appeared constant. Based on these data, we suggest that SPZ-derived circNAPEPLDiso1 physically interacts with miRNAs primarily involved in the control of cell cycle; we hypothesize that it may represent a paternal cytoplasmic contribution to the zygote and function as a miRNA decoy inside the fertilized oocytes to regulate the first stages of embryo development. This role is proposed here for the first time.
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Affiliation(s)
- Marco Ragusa
- a Dipartimento di Scienze Biomediche e Biotecnologiche, Università di Catania , Catania , Italy.,b Oasi Research Institute - IRCCS , Troina , Italy
| | - Davide Barbagallo
- a Dipartimento di Scienze Biomediche e Biotecnologiche, Università di Catania , Catania , Italy
| | - Teresa Chioccarelli
- c Dipartimento di Medicina Sperimentale, sez "F. Bottazzi", Università della Campania "Luigi Vanvitelli" , Napoli , Italy
| | - Francesco Manfrevola
- c Dipartimento di Medicina Sperimentale, sez "F. Bottazzi", Università della Campania "Luigi Vanvitelli" , Napoli , Italy
| | - Gilda Cobellis
- c Dipartimento di Medicina Sperimentale, sez "F. Bottazzi", Università della Campania "Luigi Vanvitelli" , Napoli , Italy
| | - Cinzia Di Pietro
- a Dipartimento di Scienze Biomediche e Biotecnologiche, Università di Catania , Catania , Italy
| | - Duilia Brex
- a Dipartimento di Scienze Biomediche e Biotecnologiche, Università di Catania , Catania , Italy
| | - Rosalia Battaglia
- a Dipartimento di Scienze Biomediche e Biotecnologiche, Università di Catania , Catania , Italy
| | - Silvia Fasano
- c Dipartimento di Medicina Sperimentale, sez "F. Bottazzi", Università della Campania "Luigi Vanvitelli" , Napoli , Italy
| | - Bruno Ferraro
- d UOSD di Fisiopatologia della Riproduzione, Presidio Ospedaliero di Marcianise , Caserta , Italy
| | - Carolina Sellitto
- d UOSD di Fisiopatologia della Riproduzione, Presidio Ospedaliero di Marcianise , Caserta , Italy
| | - Concetta Ambrosino
- e Dipartimento di Scienze e Tecnologie, Università del Sannio , Benevento , Italy
| | - Luca Roberto
- f IRGS, Biogem , Ariano Irpino, Avellino , Italy
| | - Michele Purrello
- a Dipartimento di Scienze Biomediche e Biotecnologiche, Università di Catania , Catania , Italy
| | - Riccardo Pierantoni
- c Dipartimento di Medicina Sperimentale, sez "F. Bottazzi", Università della Campania "Luigi Vanvitelli" , Napoli , Italy
| | - Rosanna Chianese
- c Dipartimento di Medicina Sperimentale, sez "F. Bottazzi", Università della Campania "Luigi Vanvitelli" , Napoli , Italy
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65
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Simon C, Moreau J, Gatimel N, Cohade C, Parinaud J, Leandri R. Impact of estradiol and progesterone levels during the late follicular stage on the outcome of GnRH antagonist protocols. Gynecol Endocrinol 2019; 35:481-484. [PMID: 30600726 DOI: 10.1080/09513590.2018.1538346] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Abstract
The study aimed to assess the impacts and the targets of progesterone (P4) and estradiol (E2) levels on IVF outcomes in GnRH antagonist protocols. The study was retrospective and concerned patients for their first fresh embryo transfers, after stimulation by a recombinant FSH (rFSH)-GnRH antagonist protocol, between September 2012 and July 2017 in the Toulouse University Hospital. Multivariable analysis, taking into account female age and the ovarian stimulation index, showed that E2 levels had no impact on IVF outcomes, while high P4 levels (>1.10 ng/mL) were associated to low pregnancy rate. The P4 concentrations were significantly negatively correlated to the percentage of top embryos and to the implantation rate. Therefore, the deleterious effect of high levels P4 could to act mainly by impairing embryo quality, which questions the place of the freeze-all strategy in these cases.
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Affiliation(s)
- Cynthia Simon
- a Médecine de la Reproduction , CHU Toulouse , Toulouse , France
| | - Jessika Moreau
- a Médecine de la Reproduction , CHU Toulouse , Toulouse , France
- b Groupe de Recherche en Fertilité Humaine , Université Paul Sabatier , Toulouse , France
| | - Nicolas Gatimel
- a Médecine de la Reproduction , CHU Toulouse , Toulouse , France
- b Groupe de Recherche en Fertilité Humaine , Université Paul Sabatier , Toulouse , France
| | | | - Jean Parinaud
- a Médecine de la Reproduction , CHU Toulouse , Toulouse , France
- b Groupe de Recherche en Fertilité Humaine , Université Paul Sabatier , Toulouse , France
| | - Roger Leandri
- a Médecine de la Reproduction , CHU Toulouse , Toulouse , France
- b Groupe de Recherche en Fertilité Humaine , Université Paul Sabatier , Toulouse , France
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66
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Mobarak H, Heidarpour M, Lolicato F, Nouri M, Rahbarghazi R, Mahdipour M. Physiological impact of extracellular vesicles on female reproductive system; highlights to possible restorative effects on female age-related fertility. Biofactors 2019; 45:293-303. [PMID: 30788863 DOI: 10.1002/biof.1497] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2018] [Revised: 01/03/2019] [Accepted: 01/28/2019] [Indexed: 12/15/2022]
Abstract
An alternative mechanism of cell-to-cell communication via extracellular vesicles (EVs) has recently raised increasing attention. EVs are spherical structures comprising exosomes and microvesicles, capable of transferring regulatory molecules and genetic information from one cell to another. EVs act as modulators which can alter a wide spectrum of functions at the cellular level in the recipient cells, taking part in a variety of biological processes in both physiological and pathological conditions. Alteration in EVs content, notably exosomes, was reported during cellular senescence and in patients with age-related diseases. Most studies reported regulating the impacts of exosomes on fertility and pregnancy outcomes via their capability in carrying developmental signaling molecules like proteins, RNA cargos, influencing gene expressions, affecting growth, and development of embryos during aging. Alterations in the exosomal content and functions can influence the reproductive performance in human and animals as conveyors of senescence signals from outside of the cells. This review aimed to summarize evidence on the role of EVs on modulating fertility, early embryonic development, maternal-embryo crosstalk for the recognition, and maintenance of pregnancy during maternal aging. Advanced clinical studies are required to strengthen the findings that the benefit of exosomes can be extended to subjects undergoing reproductive aging. © 2019 BioFactors, 45(3):293-303, 2019.
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Affiliation(s)
- Halimeh Mobarak
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Mohammad Heidarpour
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Francesca Lolicato
- Follicle Biology Laboratory, UZ Brussel, Vrije Universiteit Brussel, Brussels, Belgium
| | - Mohammad Nouri
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Reproductive Biology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Reza Rahbarghazi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Applied Cell Sciences, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mahdi Mahdipour
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Reproductive Biology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
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67
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Cavalera F, Simovic M, Zanoni M, Merico V, Garagna S, Zuccotti M. IVM of mouse fully grown germinal vesicle oocytes upon a feeder layer of selected cumulus cells enhances their developmental competence. Reprod Fertil Dev 2019; 31:1068-1077. [PMID: 30922442 DOI: 10.1071/rd18444] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2018] [Accepted: 01/09/2019] [Indexed: 12/11/2022] Open
Abstract
In the ovary, acquisition of oocyte developmental competence depends on a bidirectional exchange between the gamete and its companion cumulus cells (CCs). In this study we investigated the contribution of CCs surrounding oocytes of known developmental competence or incompetence to the acquisition of oocyte developmental competence. To this end, feeder layers of CCs (FL-CCs) were prepared using CCs isolated either from: (1) developmentally competent mouse oocytes whose nucleolus was surrounded by a chromatin ring (FL-SN-CCs); or (2) developmentally incompetent mouse oocytes whose nucleolus was not surrounded by a chromatin ring (FL-NSN-CCs). Denuded, fully grown oocytes (DOs) were matured to the MII stage on either FL-SN-CCs or FL-NSN-CCs, inseminated with spermatozoa and cultured throughout preimplantation development. FL-SN-CCs significantly improved the acquisition of oocyte developmental competence, with a blastocyst development rate equal to that for maturation of intact cumulus-oocyte-complexes. In contrast, DOs matured on FL-NSN-CCs or in the absence of CCs exhibited developmental failure, with embryos arresting at either the 4-cell or morula stage. These results set a culture platform to further improve the protocols for the maturation of DOs and to unravel the molecules involved in the cross-talk between the gamete and its companion CCs during the germinal vesicle to MII transition.
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Affiliation(s)
- Federica Cavalera
- Laboratorio di Biologia dello Sviluppo, Dipartimento di Biologia e Biotecnologie 'Lazzaro Spallanzani', University of Pavia, Via Ferrata, 9, 27100 Pavia, Italy
| | - Milena Simovic
- Laboratorio di Biologia dello Sviluppo, Dipartimento di Biologia e Biotecnologie 'Lazzaro Spallanzani', University of Pavia, Via Ferrata, 9, 27100 Pavia, Italy; and German Cancer Research Center, Im Neuenheimer Feld 280, Heidelberg 69120, Germany
| | - Mario Zanoni
- Laboratorio di Biologia dello Sviluppo, Dipartimento di Biologia e Biotecnologie 'Lazzaro Spallanzani', University of Pavia, Via Ferrata, 9, 27100 Pavia, Italy
| | - Valeria Merico
- Laboratorio di Biologia dello Sviluppo, Dipartimento di Biologia e Biotecnologie 'Lazzaro Spallanzani', University of Pavia, Via Ferrata, 9, 27100 Pavia, Italy
| | - Silvia Garagna
- Laboratorio di Biologia dello Sviluppo, Dipartimento di Biologia e Biotecnologie 'Lazzaro Spallanzani', University of Pavia, Via Ferrata, 9, 27100 Pavia, Italy; and Corresponding authors. ;
| | - Maurizio Zuccotti
- Laboratorio di Biologia dello Sviluppo, Dipartimento di Biologia e Biotecnologie 'Lazzaro Spallanzani', University of Pavia, Via Ferrata, 9, 27100 Pavia, Italy; and Corresponding authors. ;
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68
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Menon R, Debnath C, Lai A, Guanzon D, Bhatnagar S, Kshetrapal PK, Sheller-Miller S, Salomon C. Circulating Exosomal miRNA Profile During Term and Preterm Birth Pregnancies: A Longitudinal Study. Endocrinology 2019; 160:249-275. [PMID: 30358826 PMCID: PMC6394761 DOI: 10.1210/en.2018-00836] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Accepted: 10/19/2018] [Indexed: 12/13/2022]
Abstract
Despite decades of research in the field of human reproduction, the mechanisms responsible for human parturition still remain elusive. The objective of this study was to describe the changes in the exosomal miRNA concentrations circulating in the maternal plasma between mothers delivering term and preterm neonates, across gestation using a longitudinal study design. This descriptive study identifies the miRNA content in exosomes present in maternal plasma of term and preterm birth (PTB) (n = 20 and n = 10 per each gestational period, respectively) across gestation (i.e., first, second, and third trimesters and at the time of delivery). Changes in exosomal miRNA signature in maternal plasma during term and preterm gestation were determined using the NextSeq 500 high-output 75 cycles sequencing platform. A total of 167 and 153 miRNAs were found to significantly change (P < 0.05) as a function of the gestational age across term and PTB pregnancies, respectively. Interestingly, a comparison analysis between the exosomal miRNA profile between term and PTB reveals a total of 173 miRNAs that significantly change (P < 0.05) across gestation. Specific trends of changes (i.e., increase, decrease, and both) as a function of the gestational age were also identified. The bioinformatics analyses establish that the differences in the miRNA profile are targeting signaling pathways associated with TGF-β signaling, p53, and glucocorticoid receptor signaling, respectively. These data suggest that the miRNA content of circulating exosomes in maternal blood might represent a biomolecular "fingerprint" of the progression of pregnancy.
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Affiliation(s)
- Ramkumar Menon
- Division of Maternal-Fetal Medicine and Perinatal Research, Department of Obstetrics and Gynecology, University of Texas Medical Branch at Galveston, Galveston, Texas
| | - Chirantan Debnath
- Translational Health Science and Technology Institute, Faridabad, Haryana, India
| | - Andrew Lai
- Exosome Biology Laboratory, Centre for Clinical Diagnostics, University of Queensland Centre for Clinical Research, Royal Brisbane and Women’s Hospital, University of Queensland, Brisbane, Queensland, Australia
| | - Dominic Guanzon
- Exosome Biology Laboratory, Centre for Clinical Diagnostics, University of Queensland Centre for Clinical Research, Royal Brisbane and Women’s Hospital, University of Queensland, Brisbane, Queensland, Australia
| | - Shinjini Bhatnagar
- Translational Health Science and Technology Institute, Faridabad, Haryana, India
| | - Pallavi K Kshetrapal
- Translational Health Science and Technology Institute, Faridabad, Haryana, India
| | - Samantha Sheller-Miller
- Division of Maternal-Fetal Medicine and Perinatal Research, Department of Obstetrics and Gynecology, University of Texas Medical Branch at Galveston, Galveston, Texas
| | - Carlos Salomon
- Exosome Biology Laboratory, Centre for Clinical Diagnostics, University of Queensland Centre for Clinical Research, Royal Brisbane and Women’s Hospital, University of Queensland, Brisbane, Queensland, Australia
- Department of Clinical Biochemistry and Immunology, Faculty of Pharmacy, University of Concepción, Concepción, Chile
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69
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Sadik N, Cruz L, Gurtner A, Rodosthenous RS, Dusoswa SA, Ziegler O, Van Solinge TS, Wei Z, Salvador-Garicano AM, Gyorgy B, Broekman M, Balaj L. Extracellular RNAs: A New Awareness of Old Perspectives. Methods Mol Biol 2019; 1740:1-15. [PMID: 29388131 DOI: 10.1007/978-1-4939-7652-2_1] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Extracellular RNA (exRNA) has recently expanded as a highly important area of study in biomarker discovery and cancer therapeutics. exRNA consists of diverse RNA subpopulations that are normally protected from degradation by incorporation into membranous vesicles or by lipid/protein association. They are found circulating in biofluids, and have proven highly promising for minimally invasive diagnostic and prognostic purposes, particularly in oncology. Recent work has made progress in our understanding of exRNAs-from their biogenesis, compartmentalization, and vesicle packaging to their various applications as biomarkers and therapeutics, as well as the new challenges that arise in isolation and purification for accurate and reproducible analysis. Here we review the most recent advancements in exRNA research.
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Affiliation(s)
- Noah Sadik
- Department of Neurosurgery, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Lilian Cruz
- Department of Neurology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Alessandra Gurtner
- Department of Neurosurgery, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.,Department of Life Sciences, University of Trieste, Trieste, Italy
| | - Rodosthenis S Rodosthenous
- Cardiovascular Division of the Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Sophie A Dusoswa
- Department of Neurology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.,Department of Molecular Cell Biology and Immunology, VU University Medical Center, Amsterdam, The Netherlands.,Amsterdam Infection & Immunity Institute, VU University Medical Center, Amsterdam, The Netherlands.,Cancer Center Amsterdam, VU University Medical Center, Amsterdam, The Netherlands
| | - Olivia Ziegler
- Cardiovascular Division of the Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Thomas Sebastiaan Van Solinge
- Department of Neurology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.,NeuroDiscovery Center, Harvard Medical School, Boston, MA, USA.,Department of Neurosurgery, VU University Medical Center, Amsterdam, The Netherlands
| | - Zhiyun Wei
- Department of Neurology, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | | | - Bence Gyorgy
- Department of Neurology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Marike Broekman
- Department of Neurology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.,Department of Neurosurgery, Brain Center Rudolf Magnus University Medical Center Utrecht, Utrecht, The Netherlands
| | - Leonora Balaj
- Department of Neurosurgery, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.
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70
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Zayed Y, Qi X, Peng C. Identification of Novel MicroRNAs and Characterization of MicroRNA Expression Profiles in Zebrafish Ovarian Follicular Cells. Front Endocrinol (Lausanne) 2019; 10:518. [PMID: 31417497 PMCID: PMC6684945 DOI: 10.3389/fendo.2019.00518] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Accepted: 07/15/2019] [Indexed: 12/13/2022] Open
Abstract
MicroRNAs (miRNAs) are small non-coding RNAs that regulate gene expression primarily at the post-transcriptional levels and thereby play important roles in regulating many physiological and developmental processes. Oocyte maturation in fish is induced by hormones produced from the hypothalamus, pituitary, and ovary. Gonadotropin-releasing hormone (GnRH) stimulates the secretion of luteinizing hormone (LH), which in turn, induces the secretion of maturation-inducing hormone (MIH) from the ovary. It is documented that small early vitellogenic (or stage IIIa) follicles are unable to undergo oocyte maturation whereas oocytes in mid- to late vitellogenic (stage IIIb) follicles can be induced by LH and MIH to become mature. To determine whether miRNAs may be involved in the growth and acquisition of maturational competency of ovarian follicles, we determined the miRNA expression profiles in follicular cells collected from stage IIIa and IIIb follicles using next-generation sequencing. It was found that miRNAs are abundantly expressed in the follicular cells from both stages IIIa and IIIb follicles. Furthermore, bioinformatics analysis revealed the presence of 214 known, 31 conserved novel and 44 novel miRNAs in zebrafish vitellogenic ovarian follicular cells. Most mature miRNAs in follicular cells were found to be in the length of 22 nucleotides. Differential expression analysis revealed that 11 miRNAs were significantly up-regulated, and 13 miRNAs were significantly down-regulated in the stage IIIb follicular cells as compared with stage IIIa follicular cells. The expression of four of the significantly regulated miRNAs, dre-miR-22a-3p, dre-miR-16a, dre-miR-181a-3p, and dre-miR-29a, was validated by real-time PCR. Finally, gene enrichment and pathway analyses of the predicted targets of the significantly regulated miRNAs supported the involvement of several key signaling pathways in regulating ovarian function, including oocyte maturation. Taken together, this study identifies novel zebrafish miRNAs and characterizes miRNA expression profiles in somatic cells within the zebrafish ovarian follicles. The differential expression of miRNAs between stage IIIa and IIIb follicular cells suggests that these miRNAs are important regulators of zebrafish ovarian follicle development and/or oocyte maturation.
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Affiliation(s)
- Yara Zayed
- Department of Biology, York University, Toronto, ON, Canada
| | - Xin Qi
- Department of Biology, York University, Toronto, ON, Canada
| | - Chun Peng
- Department of Biology, York University, Toronto, ON, Canada
- Centre for Research on Biomolecular Interactions, York University, Toronto, ON, Canada
- *Correspondence: Chun Peng
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Martinez RM, Liang L, Racowsky C, Dioni L, Mansur A, Adir M, Bollati V, Baccarelli AA, Hauser R, Machtinger R. Extracellular microRNAs profile in human follicular fluid and IVF outcomes. Sci Rep 2018; 8:17036. [PMID: 30451969 PMCID: PMC6242846 DOI: 10.1038/s41598-018-35379-3] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Accepted: 11/05/2018] [Indexed: 12/21/2022] Open
Abstract
Encapsulated microRNAs (i.e., miRNAs within the extracellular vesicles, i.e., EV-miRNAs) have been detected in follicular fluid in both animal and human studies and different profiles have been associated with IVF cycle characteristics. However, limited studies to date have investigated other IVF outcomes, including fertilization status and embryo quality on day three". In this cohort, we performed a cross-sectional analysis on 126 women who contributed follicular fluid from a single follicle during a single IVF cycle. One hundred and ninety-two EV-miRNAs were assessed by univariable fold-change and multivariable logistic regression analyses. Hsa-miR-92a and hsa-miR-130b, were over-expressed in follicular fluid samples from oocytes that failed to fertilize compared to those that were normally fertilized. Additionally, hsa-miR-888 was over-expressed and hsa-miR-214 and hsa-miR-454 were under-expressed in samples that resulted in impaired day-3 embryo quality compared to top-quality day-3 embryos. After adjusting for confounders as BMI, smoking and total motile sperm, associations of these EV-miRNAs remained significant. In-silico KEGG pathway analyses assigned the identified EV-miRNAs to pathways of follicular growth and development, cellular signaling, oocyte meiosis, and ovarian function. Our findings suggest that EV-miRNAs may play a role in pathways of ovarian function and follicle development, which could be essential for understanding the molecular mechanisms that could lead to a successful pregnancy and birth.
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Affiliation(s)
- Rosie M Martinez
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, 02115, USA
- Laboratory of Precision Environmental Biosciences, Department of Environmental Health Sciences, Columbia Mailman School of Public Health, New York, New York, 10032, USA
| | - Liming Liang
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, 02115, USA
| | - Catherine Racowsky
- Department of Obstetrics, Gynecology and Reproductive Biology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, 02115, USA
| | - Laura Dioni
- EPIGET - Epidemiology, Epigenetics and Toxicology Lab, Department of Clinical Sciences and Community Health, University of Milan, 20122, Milano, Italy
| | - Abdallah Mansur
- Department of Obstetrics and Gynecology, Sheba Medical Center, Ramat-Gan, 52561, Israel
- Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Michal Adir
- Department of Obstetrics and Gynecology, Sheba Medical Center, Ramat-Gan, 52561, Israel
- Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Valentina Bollati
- EPIGET - Epidemiology, Epigenetics and Toxicology Lab, Department of Clinical Sciences and Community Health, University of Milan, 20122, Milano, Italy
| | - Andrea A Baccarelli
- Laboratory of Precision Environmental Biosciences, Department of Environmental Health Sciences, Columbia Mailman School of Public Health, New York, New York, 10032, USA
| | - Russ Hauser
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, 02115, USA
| | - Ronit Machtinger
- Department of Obstetrics and Gynecology, Sheba Medical Center, Ramat-Gan, 52561, Israel.
- Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel.
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72
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Montazerian M, Yasari F, Aghaalikhani N. Ovarian extracellular MicroRNAs as the potential non-invasive biomarkers: An update. Biomed Pharmacother 2018; 106:1633-1640. [PMID: 30119239 DOI: 10.1016/j.biopha.2018.07.073] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2018] [Revised: 07/13/2018] [Accepted: 07/14/2018] [Indexed: 01/06/2023] Open
Abstract
Through the reproductive system, it has been realized that the microRNAs (miRNAs) have emerged as one of the principal post-transcriptional gene regulators of the diverse developmental processes. The ovary, as a dynamic organ, co-ordinates follicle recruitment, selection, and ovulation, in which miRNAs play the central role almost in its all functions. Deregulation of these developmental procedures in ovary could lead to the ovarian dysfunction, infertility, decrease in the assisted reproductive treatment (ART) outcome, and death in some patients with ovarian cancer. In recent years, detection of ovarian extracellular miRNAs in body fluids such as follicular fluid and serum/plasma has opened a new era in the biomarker discovery field. Here through the present review, different aspects of the potential and proposed involvement of the extracellular miRNAs in both physiologic and pathologic contexts of the ovary have been discussed. Moreover, the researchers have addressed the relevant findings, challenges, and issues which associated with the extracellular miRNAs in the ovarian microenvironments to provide the better insight into understanding the molecular mechanisms which were involved in the pathophysiologic conditions. Finally, a comprehensive survey of the gaps has been discussed to hopefully shed new light and perspective on the development of the novel diagnostic and therapeutic platforms in the clinic.
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Affiliation(s)
- Mojgan Montazerian
- Department of Midwifery, Dezful Branch Islamic Azad University, Dezful, Iran.
| | - Fahimeh Yasari
- Department of Midwifery, Dezful Branch Islamic Azad University, Dezful, Iran
| | - Nazi Aghaalikhani
- Department of Midwifery, Dezful Branch Islamic Azad University, Dezful, Iran
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O’Doherty AM, O’Brien YM, Browne JA, Wingfield M, O’Shea LC. Expression of granulosa cell microRNAs, AVEN and ATRX are associated with human blastocyst development. Mol Reprod Dev 2018; 85:836-848. [DOI: 10.1002/mrd.22990] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Accepted: 04/23/2018] [Indexed: 12/17/2022]
Affiliation(s)
- Alan M. O’Doherty
- School of Agriculture and Food Science, Veterinary Science Centre; University College Dublin; Dublin Ireland
| | - Yvonne M. O’Brien
- Merrion Fertility Clinic; National Maternity Hospital; Dublin Ireland
| | - John A. Browne
- School of Agriculture and Food Science, Veterinary Science Centre; University College Dublin; Dublin Ireland
| | - Mary Wingfield
- Merrion Fertility Clinic; National Maternity Hospital; Dublin Ireland
- School of Medicine, Health Sciences Centre, Conway Institute of Biomolecular and Biomedical Science; University College Dublin; Dublin Ireland
| | - Lynne C. O’Shea
- School of Medicine, Health Sciences Centre, Conway Institute of Biomolecular and Biomedical Science; University College Dublin; Dublin Ireland
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Screening of miRNAs in human follicular fluid reveals an inverse relationship between microRNA-663b expression and blastocyst formation. Reprod Biomed Online 2018; 37:25-32. [PMID: 29703434 DOI: 10.1016/j.rbmo.2018.03.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2017] [Revised: 03/24/2018] [Accepted: 03/27/2018] [Indexed: 11/21/2022]
Abstract
RESEARCH QUESTION Are miRNAs found in follicular fluid related to blastocyst formation from the corresponding oocytes? DESIGN In this study, 91 individual follicular fluid samples from single follicles containing mature oocytes from 91 women were collected and classified into group 1 (n = 38) with viable blastocysts, and group 2 (n = 53) with no blastocyst. TaqMan human miRNA cards and quantitative reverse transcription polymerase chain reaction were used to identify differently expressed follicular fluid miRNAs between the two groups. RESULTS We found MIR-663B to be significantly differentially expressed in follicular fluid of oocytes that yielded viable blastocysts versus those that did not develop into blastocysts (14.16 ± 7.00 versus 23.68 ± 17.02; P = 0.019), as well as for those which develop into blastocysts with good morphology versus those with poor morphology (11.69 ± 3.49 versus 20.16 ± 9.33; P = 0.003). CONCLUSIONS MIR-663B expression levels in human follicular fluid samples were significantly negatively related to viable blastocyst formation and may become an objective evaluation criterion for embryo development potential after IVF.
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da Silveira JC, de Ávila ACFCM, Garrett HL, Bruemmer JE, Winger QA, Bouma GJ. Cell-secreted vesicles containing microRNAs as regulators of gamete maturation. J Endocrinol 2018; 236:R15-R27. [PMID: 28870888 DOI: 10.1530/joe-17-0200] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Accepted: 09/04/2017] [Indexed: 12/21/2022]
Abstract
Mammalian gamete maturation requires extensive signaling between germ cells and their surrounding somatic cells. In the ovary, theca cells, mural granulosa cells, cumulus cells and the oocyte all secrete factors throughout follicle growth and maturation that are critical for ovulation of a high-quality oocyte with the competence to develop into an embryo. Similarly, maturation of sperm occurs as it transits the epididymis during which epididymal epithelium and sperm exchange secretory factors that are required for sperm to gain motility and fertility. Recent studies in a variety of species have uncovered the presence of cell-secreted vesicles in follicular fluid (microvesicles and exosomes) and epididymal fluid (epididymosomes). Moreover, these cell-secreted vesicles contain small non-coding regulatory RNAs called microRNAs, which can be shuttled between maturing gametes and surrounding somatic cells. Although little is known about the exact mechanism of how microRNAs are loaded into these cell-secreted vesicles or are transferred and modulate gene expression and function in gametes, recent studies clearly suggest that cell-secreted vesicle microRNAs play a role in oocyte and sperm maturation. Moreover, a role for cell-secreted vesicular microRNAs in gamete maturation provides for novel opportunities to modulate and discover new diagnostic markers associated with male or female fertility. This manuscript provides an overview of cell-secreted vesicles in ovarian follicular fluid and epididymal fluid and microRNAs and discusses recent discoveries on the potential function of cell-secreted vesicles as carriers of microRNAs in oocyte and sperm maturation.
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Affiliation(s)
- Juliano C da Silveira
- Department of Veterinary MedicineFaculty of Animal Sciences and Food Engineering, University of Sao Paulo, Pirassununga, Sao Paulo, Brazil
| | - Ana Clara F C M de Ávila
- Department of Veterinary MedicineFaculty of Animal Sciences and Food Engineering, University of Sao Paulo, Pirassununga, Sao Paulo, Brazil
| | - Hannah L Garrett
- Department of Biomedical SciencesCollege of Veterinary and Biomedical Sciences, Animal Reproduction and Biotechnology Laboratory, Colorado State University, Fort Collins, Colorado, USA
| | - Jason E Bruemmer
- Department of Biomedical SciencesCollege of Veterinary and Biomedical Sciences, Animal Reproduction and Biotechnology Laboratory, Colorado State University, Fort Collins, Colorado, USA
| | - Quinton A Winger
- Department of Biomedical SciencesCollege of Veterinary and Biomedical Sciences, Animal Reproduction and Biotechnology Laboratory, Colorado State University, Fort Collins, Colorado, USA
| | - Gerrit J Bouma
- Department of Biomedical SciencesCollege of Veterinary and Biomedical Sciences, Animal Reproduction and Biotechnology Laboratory, Colorado State University, Fort Collins, Colorado, USA
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