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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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The effects of kinase modulation on in vitro maturation according to different cumulus-oocyte complex morphologies. PLoS One 2018; 13:e0205495. [PMID: 30308003 PMCID: PMC6181369 DOI: 10.1371/journal.pone.0205495] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Accepted: 09/26/2018] [Indexed: 01/21/2023] Open
Abstract
Successful production of transgenic pigs requires oocytes with a high developmental competence. However, cumulus-oocyte complexes (COCs) obtained from antral follicles have a heterogeneous morphology. COCs can be classified into one of two classes: class I, with five or more layers of cumulus cells; and class II, with one or two layers of cumulus cells. Activator [e.g., epidermal growth factor (EGF)] or inhibitors (e.g., wortmannin and U0126) are added to modulate kinases in oocytes during meiosis. In the present study, we investigated the effects of kinase modulation on nuclear and cytoplasmic maturation in COCs. Class I COCs showed a significantly higher developmental competence than class II COCs. Moreover, the expression of two kinases, AKT and ERK, differed between class I and class II COCs during in vitro maturation (IVM). Initially, inhibition of the PI3K/AKT signaling pathway in class I COCs during early IVM (0-22 h) decreased developmental parameters, such as blastocyst formation rate, blastomere number, and cell survival. Conversely, EGF-mediated AKT activation in class II COCs enhanced developmental capacity. Regarding the MAPK signaling pathway, inhibition of ERK by U0126 in class II COCs during early IVM impaired developmental competence. However, transient treatment with U0126 in class II COCs increased oocyte maturation and AKT activity, improving embryonic development. Additionally, western blotting showed that inhibition of ERK activity negatively regulated the AKT signaling pathway, indicative of a relationship between AKT and MAPK signaling in the process underlying meiotic progression in pigs. These findings may help increase the developmental competence and utilization rate of pig COCs with regard to the production of transgenic pigs and improve our understanding of kinase-associated meiosis events.
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Del Collado M, Andrade GM, Meirelles FV, da Silveira JC, Perecin F. Contributions from the ovarian follicular environment to oocyte function. Anim Reprod 2018; 15:261-270. [PMID: 34178149 PMCID: PMC8202235 DOI: 10.21451/1984-3143-ar2018-0082] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The magnitude of oocyte's role for embryo development is categorical. This unique cell contains the machineries and cellular components necessary to remodel male and female chromatin, to sustain early development and to, ultimately, generate a complete and complex individual. However, to gain these competences before fertilization, the oocyte undergoes several morphological, cellular and molecular changes during its lifetime enclosed in the ovarian follicle. This review will briefly revisit how the oocyte orchestrate the follicular cells, and how molecules transit to the oocyte from the innermost (cumulus) and outermost (antrum and granulosa cells) layers surrounding the follicle-enclosed oocyte. Finally, we will discuss the interferences of in vitro culture conditions in the communication of the oocyte with its surrounding cells and the potential strategies to modulate these communication systems to increase oocyte competence.
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Affiliation(s)
- Maite Del Collado
- Faculty of Animal Sciences and Food Engineering, Department of Veterinary Medicine, University of São Paulo, Pirassununga, SP, Brazil
| | - Gabriella Mamede Andrade
- Faculty of Animal Sciences and Food Engineering, Department of Veterinary Medicine, University of São Paulo, Pirassununga, SP, Brazil
| | - Flávio Vieira Meirelles
- Faculty of Animal Sciences and Food Engineering, Department of Veterinary Medicine, University of São Paulo, Pirassununga, SP, Brazil
| | - Juliano Coelho da Silveira
- Faculty of Animal Sciences and Food Engineering, Department of Veterinary Medicine, University of São Paulo, Pirassununga, SP, Brazil
| | - Felipe Perecin
- Faculty of Animal Sciences and Food Engineering, Department of Veterinary Medicine, University of São Paulo, Pirassununga, SP, Brazil
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Lei L, Han F, Cui Q, Liao W, Liu H, Guan G, Yang L. IRS2 depletion inhibits cell proliferation and decreases hormone secretion in mouse granulosa cells. J Reprod Dev 2018; 64:409-416. [PMID: 29998910 PMCID: PMC6189576 DOI: 10.1262/jrd.2018-055] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Insulin receptor substrate 2 (IRS2) is a component of the insulin/insulin-like growth factor 1 (IGF1) signaling cascade, which plays an important role in mouse hypothalamic and ovarian
functions. The present study was conducted to investigate the role of IRS2 in steroidogenesis, apoptosis, cell cycle and proliferation in mouse granulosa cells (GCs). Flow cytometry and CCK8
assay showed that IRS2 knockdown inhibited cell proliferation, reduced cell viability, and increased apoptosis in GCs. The study also revealed that the expression of Cyclin A1, Cyclin B1 and
Bcl2 was downregulated, while the expression of Bax, Cyclin D1 and Cyclin D2 was upregulated. ELISA analysis showed that IRS2 knockdown decreased the concentrations of estradiol
(E2) and progesterone (P4), which was further validated by the decreased expression of Star, Cyp11a1, and Cyp19a1. Moreover, IRS2 knockdown altered the expression of
Has2 and Ptgs2, which are essential for folliculogenesis. In addition, we found that IRS2-mediated cell viability and hormone secretion are dependent on the PI3K/AKT signaling pathway.
Collectively, this study demonstrated that IRS2 plays an important role in the regulation of cell proliferation and steroidogenesis in mouse GCs via the PI3K/AKT signaling pathway.
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Affiliation(s)
- Lanjie Lei
- Clinical Skills Center, Affiliated Hospital of Jiujiang University, Jiujiang University, Jiangxi 332000, China
| | - Feng Han
- Clinical Skills Center, Affiliated Hospital of Jiujiang University, Jiujiang University, Jiangxi 332000, China
| | - Qiuyan Cui
- Clinical Skills Center, Affiliated Hospital of Jiujiang University, Jiujiang University, Jiangxi 332000, China
| | - Weifang Liao
- Clinical Skills Center, Affiliated Hospital of Jiujiang University, Jiujiang University, Jiangxi 332000, China
| | - Hui Liu
- Clinical Skills Center, Affiliated Hospital of Jiujiang University, Jiujiang University, Jiangxi 332000, China
| | - Gaopeng Guan
- Key Laboratory of System Bio-medicine of Jiangxi Province, Jiujiang University, Jiangxi 332000, China
| | - Lei Yang
- College of Basic Medical, Jiujiang University, Jiangxi 332000, China.,Key Laboratory of System Bio-medicine of Jiangxi Province, Jiujiang University, Jiangxi 332000, China
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