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Russo G, Notarstefano V, Montik N, Gioacchini G, Giorgini E, Polidori AR, Candela FA, Ciavattini A, Cignitti M, Carnevali O. Evaluation of Controlled Ovarian Stimulation Protocols in Patients with Normal and Low Ovarian Reserve: Analyses of miRNAs and Selected Target Genes Involved in the Proliferation of Human Cumulus Cells and Oocyte Quality. Int J Mol Sci 2022; 23:ijms23031713. [PMID: 35163635 PMCID: PMC8836191 DOI: 10.3390/ijms23031713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 01/22/2022] [Accepted: 01/30/2022] [Indexed: 02/01/2023] Open
Abstract
The oocyte and the surrounding cumulus cells (CCs) are deeply linked by a complex bidirectional cross-talk. In this light, the molecular analysis of the CCs is nowadays considered to be precious in providing information on oocyte quality. It is now clear that miRNAs play a key role in several ovarian functions, such as folliculogenesis, steroidogenesis, and ovulation. Thus, in this study, specific miRNAs, together with their target genes, were selected and investigated in CCs to assess the response of patients with normal (NR) and low (LR) ovarian reserve to two different controlled ovarian stimulation (COS) protocols, based on rFSH and hMG. Moreover, a Fourier transform infrared microspectroscopy (FTIRM) analysis was performed to evaluate DNA conformational changes in CCs and to relate them with the two COS protocols. The results evidenced a modulation of the expression of miRNAs and related target genes involved in CCs’ proliferation, in vasculogenesis, angiogenesis, genomic integrity, and oocyte quality, with different effects according to the ovarian reserve of patients. Moreover, the COS protocols determined differences in DNA conformation and the methylation state. In particular, the results clearly showed that treatment with rFSH is the most appropriate in NR patients with normal ovarian reserve, while treatment with hMG appears to be the most suitable in LR patients with low ovarian reserve.
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Affiliation(s)
- Giulia Russo
- Department of Life and Environmental Sciences, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy; (G.R.); (V.N.); (G.G.); (E.G.)
| | - Valentina Notarstefano
- Department of Life and Environmental Sciences, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy; (G.R.); (V.N.); (G.G.); (E.G.)
| | - Nina Montik
- Clinica Ostetrica Ginecologica, Università Politecnica delle Marche, Ospedale G. Salesi, Via F. Corridoni 11, 60131 Ancona, Italy; (N.M.); (A.R.P.); (F.A.C.); (A.C.); (M.C.)
| | - Giorgia Gioacchini
- Department of Life and Environmental Sciences, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy; (G.R.); (V.N.); (G.G.); (E.G.)
| | - Elisabetta Giorgini
- Department of Life and Environmental Sciences, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy; (G.R.); (V.N.); (G.G.); (E.G.)
| | - Anna Rita Polidori
- Clinica Ostetrica Ginecologica, Università Politecnica delle Marche, Ospedale G. Salesi, Via F. Corridoni 11, 60131 Ancona, Italy; (N.M.); (A.R.P.); (F.A.C.); (A.C.); (M.C.)
| | - Fulvia Antonia Candela
- Clinica Ostetrica Ginecologica, Università Politecnica delle Marche, Ospedale G. Salesi, Via F. Corridoni 11, 60131 Ancona, Italy; (N.M.); (A.R.P.); (F.A.C.); (A.C.); (M.C.)
| | - Andrea Ciavattini
- Clinica Ostetrica Ginecologica, Università Politecnica delle Marche, Ospedale G. Salesi, Via F. Corridoni 11, 60131 Ancona, Italy; (N.M.); (A.R.P.); (F.A.C.); (A.C.); (M.C.)
| | - Maurizio Cignitti
- Clinica Ostetrica Ginecologica, Università Politecnica delle Marche, Ospedale G. Salesi, Via F. Corridoni 11, 60131 Ancona, Italy; (N.M.); (A.R.P.); (F.A.C.); (A.C.); (M.C.)
| | - Oliana Carnevali
- Department of Life and Environmental Sciences, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy; (G.R.); (V.N.); (G.G.); (E.G.)
- Correspondence: ; Tel.: +39-071-2204940
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Kim MJ, Kim YS, Kim YJ, Lee HR, Choi KH, Park EA, Kang KY, Yoon TK, Hwang S, Ko JJ, Kim YS, Lee JH. Upregulation of Low-Density Lipoprotein Receptor of the Steroidogenesis Pathway in the Cumulus Cells Is Associated with the Maturation of Oocytes and Achievement of Pregnancy. Cells 2021; 10:cells10092389. [PMID: 34572039 PMCID: PMC8465166 DOI: 10.3390/cells10092389] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 09/03/2021] [Accepted: 09/07/2021] [Indexed: 01/29/2023] Open
Abstract
The maturation of the oocyte is influenced by cumulus cells (CCs) and associated with pregnancy rate, whereas the influencing factors have not been completely elucidated in the CCs. In this study, we identified new regulators of CCs for high-quality oocytes and successful pregnancies during assisted reproductive techniques. CCs were collected from cumulus–oocyte complexes (COCs) in young (≤33 years old) and old (≥40 years old) women undergoing intracytoplasmic sperm injection (ICSI) procedures. We screened for factors differentially expressed between young vs. old CCs and pregnancy vs. non-pregnancy using whole mRNA-seq-next-generation sequencing (NGS). We characterized the transcriptome of the CCs to identify factors critical for achieving pregnancy in IVF cycles. Women in the young and old pregnancy groups exhibited the up- and downregulation of multiple genes compared with the non-pregnancy groups, revealing the differential regulation of several specific genes involved in ovarian steroidogenesis in CCs. It was shown that the low-density lipoprotein (LDL) receptor to the steroidogenesis pathway was upregulated in CCs with higher maturity rates of oocytes in the pregnancy group. In conclusion, a higher pregnancy rate is related to the signaling pathway of steroidogenesis by the LDL receptor in infertile women undergoing IVF procedures.
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Affiliation(s)
- Myung Joo Kim
- CHA Fertility Center Seoul Station, Seoul 04637, Korea; (M.J.K.); (Y.S.K.); (H.R.L.); (K.H.C.); (E.A.P.); (K.Y.K.); (T.K.Y.)
- Department of Obstetrics and Gynecology, CHA University School of Medicine, Seoul 04637, Korea
| | - Young Sang Kim
- CHA Fertility Center Seoul Station, Seoul 04637, Korea; (M.J.K.); (Y.S.K.); (H.R.L.); (K.H.C.); (E.A.P.); (K.Y.K.); (T.K.Y.)
- Department of Obstetrics and Gynecology, CHA University School of Medicine, Seoul 04637, Korea
| | - Yu Jin Kim
- Laboratory of Reproductive and Molecular Medicine, CHA Fertility Center Seoul Station, Seoul 04637, Korea;
| | - Hye Ran Lee
- CHA Fertility Center Seoul Station, Seoul 04637, Korea; (M.J.K.); (Y.S.K.); (H.R.L.); (K.H.C.); (E.A.P.); (K.Y.K.); (T.K.Y.)
| | - Kyoung Hee Choi
- CHA Fertility Center Seoul Station, Seoul 04637, Korea; (M.J.K.); (Y.S.K.); (H.R.L.); (K.H.C.); (E.A.P.); (K.Y.K.); (T.K.Y.)
| | - Eun A Park
- CHA Fertility Center Seoul Station, Seoul 04637, Korea; (M.J.K.); (Y.S.K.); (H.R.L.); (K.H.C.); (E.A.P.); (K.Y.K.); (T.K.Y.)
| | - Ki Ye Kang
- CHA Fertility Center Seoul Station, Seoul 04637, Korea; (M.J.K.); (Y.S.K.); (H.R.L.); (K.H.C.); (E.A.P.); (K.Y.K.); (T.K.Y.)
| | - Tae Ki Yoon
- CHA Fertility Center Seoul Station, Seoul 04637, Korea; (M.J.K.); (Y.S.K.); (H.R.L.); (K.H.C.); (E.A.P.); (K.Y.K.); (T.K.Y.)
- Department of Obstetrics and Gynecology, CHA University School of Medicine, Seoul 04637, Korea
| | - Sohyun Hwang
- CHA Bundang Medical Center, CHA University, Seongnam 13496, Korea;
- Department of Biomedical Science, College of Life Science, CHA University, Pocheon 11160, Korea
| | - Jung Jae Ko
- Department of Biomedical Science, College of Life Science, CHA University, Pocheon 11160, Korea
- Correspondence: (J.J.K.); (Y.S.K.); (J.H.L.); Tel.: +82-31-881-7133 (J.J.K.); +82-2-2002-0300 (Y.S.K); +82-2-2002-0406 (J.H.L.)
| | - You Shin Kim
- CHA Fertility Center Seoul Station, Seoul 04637, Korea; (M.J.K.); (Y.S.K.); (H.R.L.); (K.H.C.); (E.A.P.); (K.Y.K.); (T.K.Y.)
- Department of Obstetrics and Gynecology, CHA University School of Medicine, Seoul 04637, Korea
- Correspondence: (J.J.K.); (Y.S.K.); (J.H.L.); Tel.: +82-31-881-7133 (J.J.K.); +82-2-2002-0300 (Y.S.K); +82-2-2002-0406 (J.H.L.)
| | - Jae Ho Lee
- CHA Fertility Center Seoul Station, Seoul 04637, Korea; (M.J.K.); (Y.S.K.); (H.R.L.); (K.H.C.); (E.A.P.); (K.Y.K.); (T.K.Y.)
- Laboratory of Reproductive and Molecular Medicine, CHA Fertility Center Seoul Station, Seoul 04637, Korea;
- Department of Biomedical Science, College of Life Science, CHA University, Pocheon 11160, Korea
- Correspondence: (J.J.K.); (Y.S.K.); (J.H.L.); Tel.: +82-31-881-7133 (J.J.K.); +82-2-2002-0300 (Y.S.K); +82-2-2002-0406 (J.H.L.)
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Turathum B, Gao EM, Chian RC. The Function of Cumulus Cells in Oocyte Growth and Maturation and in Subsequent Ovulation and Fertilization. Cells 2021; 10:cells10092292. [PMID: 34571941 PMCID: PMC8470117 DOI: 10.3390/cells10092292] [Citation(s) in RCA: 80] [Impact Index Per Article: 26.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 09/01/2021] [Indexed: 12/12/2022] Open
Abstract
Cumulus cells (CCs) originating from undifferentiated granulosa cells (GCs) differentiate in mural granulosa cells (MGCs) and CCs during antrum formation in the follicle by the distribution of location. CCs are supporting cells of the oocyte that protect the oocyte from the microenvironment, which helps oocyte growth and maturation in the follicles. Bi-directional communications between an oocyte and CCs are necessary for the oocyte for the acquisition of maturation and early embryonic developmental competence following fertilization. Follicle-stimulation hormone (FSH) and luteinizing hormone (LH) surges lead to the synthesis of an extracellular matrix in CCs, and CCs undergo expansion to assist meiotic resumption of the oocyte. The function of CCs is involved in the completion of oocyte meiotic maturation and ovulation, fertilization, and subsequent early embryo development. Therefore, understanding the function of CCs during follicular development may be helpful for predicting oocyte quality and subsequent embryonic development competence, as well as pregnancy outcomes in the field of reproductive medicine and assisted reproductive technology (ART) for infertility treatment.
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Affiliation(s)
- Bongkoch Turathum
- Centre for Reproductive Medicine, Shanghai 10th People Hospital of Tongji University, Shanghai 200072, China;
- Department of Basic Medical Science, Faculty of Medicine Vajira Hospital, Navamindradhiraj University, Bangkok 10300, Thailand
| | - Er-Meng Gao
- Shanghai Clinical College, Anhui Medical University, Hefei 230032, China;
| | - Ri-Cheng Chian
- Centre for Reproductive Medicine, Shanghai 10th People Hospital of Tongji University, Shanghai 200072, China;
- Shanghai Clinical College, Anhui Medical University, Hefei 230032, China;
- Correspondence: ; Tel.: +86-18917687092
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Moorey SE, Monnig JM, Smith MF, Ortega MS, Green JA, Pohler KG, Bridges GA, Behura SK, Geary TW. Differential Transcript Profiles in Cumulus-Oocyte Complexes Originating from Pre-Ovulatory Follicles of Varied Physiological Maturity in Beef Cows. Genes (Basel) 2021; 12:genes12060893. [PMID: 34200628 PMCID: PMC8227736 DOI: 10.3390/genes12060893] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 05/27/2021] [Accepted: 05/27/2021] [Indexed: 12/13/2022] Open
Abstract
Small dominant follicle diameter at induced ovulation, but not at spontaneous ovulation, decreased pregnancy rate, fertilization rate, and day seven embryo quality in beef cows. We hypothesized that the physiological status of the follicle at GnRH-induced ovulation has a direct effect on the transcriptome of the Cumulus-Oocyte complex, thereby affecting oocyte competence and subsequent embryo development. The objective of this study was to determine if the transcriptome of oocytes and associated cumulus cells (CC) differed among small (≤11.7 mm) and large follicles (≥12.7 mm) exposed to a GnRH-induced gonadotropin surge and follicles (11.7–14.0 mm) exposed to an endogenous gonadotropin surge (spontaneous follicles). RNA sequencing data, from pools of four oocytes or their corresponding CC, revealed 69, 94, and 83 differentially expressed gene transcripts (DEG) among oocyte pools from small versus large, small versus spontaneous, and large versus spontaneous follicle classifications, respectively. An additional 128, 98, and 80 DEG were identified among small versus large, small versus spontaneous, and large versus spontaneous follicle CC pools, respectively. The biological pathway “oxidative phosphorylation” was significantly enriched with DEG from small versus spontaneous follicle oocyte pools (FDR < 0.01); whereas the glycolytic pathway was significantly enriched with DEG from CC pools obtained from large versus small follicles (FDR < 0.01). These findings collectively suggest that altered carbohydrate metabolism within the Cumulus-Oocyte complex likely contributes to the decreased competency of oocytes from small pre-ovulatory follicles exposed to an exogenous GnRH-induced gonadotropin surge.
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Affiliation(s)
- Sarah E. Moorey
- Department of Animal Science, University of Tennessee, Knoxville, TN 37996, USA
- Correspondence:
| | - Jenna M. Monnig
- Division of Animal Sciences, University of Missouri, Columbia, MO 65211, USA; (J.M.M.); (M.F.S.); (M.S.O.); (J.A.G.); (S.K.B.)
| | - Michael F. Smith
- Division of Animal Sciences, University of Missouri, Columbia, MO 65211, USA; (J.M.M.); (M.F.S.); (M.S.O.); (J.A.G.); (S.K.B.)
| | - M. Sofia Ortega
- Division of Animal Sciences, University of Missouri, Columbia, MO 65211, USA; (J.M.M.); (M.F.S.); (M.S.O.); (J.A.G.); (S.K.B.)
| | - Jonathan A. Green
- Division of Animal Sciences, University of Missouri, Columbia, MO 65211, USA; (J.M.M.); (M.F.S.); (M.S.O.); (J.A.G.); (S.K.B.)
| | - Ky G. Pohler
- Department of Animal Science, Texas A&M University, College Station, TX 77843, USA;
| | - G. Alan Bridges
- Department of Animal Science, University of Minnesota, St. Paul, MN 55108, USA;
| | - Susanta K. Behura
- Division of Animal Sciences, University of Missouri, Columbia, MO 65211, USA; (J.M.M.); (M.F.S.); (M.S.O.); (J.A.G.); (S.K.B.)
| | - Thomas W. Geary
- USDA-ARS Fort Keogh Livestock and Range Research Lab, Miles City, MT 59301, USA;
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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Wu FJ, Wang YW, Luo CW. Human bone morphogenetic protein 8A promotes expansion and prevents apoptosis of cumulus cells in vitro. Mol Cell Endocrinol 2021; 522:111121. [PMID: 33338549 DOI: 10.1016/j.mce.2020.111121] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 11/16/2020] [Accepted: 12/07/2020] [Indexed: 11/20/2022]
Abstract
Cumulus expansion is essential for ovulation and oocyte maturation in mammals. Previous studies suggest that this process requires certain cumulus expansion enabling factors, induced by LH surge, that activate SMAD signaling locally. However, their identities remain uncertain. Using a superovulated rat model, we showed that Bmp8 transcripts were abundant in cumulus cell-oocyte complexes (COCs) and their levels can be further induced during ovulation. By analyzing human COC-related transcriptomic datasets, BMP8 transcripts in cumulus cells were also found to be significantly elevated along with the maturation status and developmental competence of enclosed oocytes. In cultured rat COCs, treatment with recombinant BMP8A protein activated both SMAD1/5/8 and SMAD2/3 pathways; the resulting SMAD2/3 signaling induced COC expansion as well as the expression of COC expansion-related genes, whereas the resulting SMAD2/3 and SMAD1/5/8 activations were both required for protecting expanded cumulus cells from apoptosis. Taken together, our data demonstrated that addition of BMP8 protein in the in vitro rat COC cultures not only promotes cumulus expansion but also sustains survival of expanded cumulus cells via different SMAD downstreams. With these capabilities, BMP8 may have clinical applications to ameliorate the fertilizability and subsequent developmental competence of the enclosed oocytes when doing in vitro COC maturation.
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Affiliation(s)
- Fang-Ju Wu
- Department of Life Sciences and Institute of Genome Sciences, National Yang-Ming University, Taipei, 112, Taiwan
| | - Ying-Wen Wang
- Department of Life Sciences and Institute of Genome Sciences, National Yang-Ming University, Taipei, 112, Taiwan
| | - Ching-Wei Luo
- Department of Life Sciences and Institute of Genome Sciences, National Yang-Ming University, Taipei, 112, Taiwan.
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Ailia MJ, Jin YK, Kim HK, Jang G. Development of in-vitro maturation protocol for rat oocytes; under simple culture vs co-culture with cumulus cell monolayer and its developmental potential via Parthenogenetic/artificial activation. BMC Vet Res 2021; 17:44. [PMID: 33482811 PMCID: PMC7821397 DOI: 10.1186/s12917-020-02714-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 12/09/2020] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Murine is the most abundantly used as laboratory animal models. There has been a tremendous amount of research including; their evolution, growth, physiology, disease modeling as well as genomic mapping. Rats and mice are the most widely used among them. Although both rats and mice fall under the same category still both are different a lot too. As regarding in vitro maturation and development mouse studies are well established as compared to rats which still lies in the early phase of development. So, we tried to figure out rat oocytes in vitro maturation and their developmental potential by performing 3 experiments i.e. superovulation, in vitro Maturation as simple culture (COC's only), and COC's & cumulus cells co-culture, which later further developed using parthenogenetic activation after IVM. Female Sprague Dawley rat 3-4 week used for these studies, we hyper-stimulated their ovaries using PMSG and hCG 150 IU/kg each. After that, we collected ovaries via dissection and retrieved oocytes. We matured them in TCM 199 supplemented with FSH, Estrogen, EGF, and Pyruvate. After maturation, we activated them using two types of activators i.e. Ethanol 7%, Ionomycin. After that, we saw and compared their developmental potential in vitro. RESULTS Oocytes matured in COC's and Cumulus cell monolayer co-culture (59% ± 4*) showed significantly more even growth and extrusion of the first polar body as compared to the COC's only culture (53.8 ± 7%*). While oocytes activated using Ionomycin showed more promising development until 8 cells/blastocyst level compared to ethanol 7%. CONCLUSION we concluded that COC's and cumulus monolayer co-culture is better than COC's only culture. Cumulus monolayer provides extra aid in the absorption of nutrients and supplements thus providing a better environment for oocytes growth. Also, we concluded that matured oocytes showed more developmental capacity after activation via ionomycin compared to ethanol.
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Affiliation(s)
- Muhammad Joan Ailia
- Laboratory of Theriogenology, Department of Veterinary Clinical Science, College of Veterinary Medicine, Seoul National University, Kwanak-ro 1, Daehak-Dong, Kwanak-Gu, Seoul, 08826 Republic of Korea
| | - Yun-Kyong Jin
- Laboratory of Theriogenology, Department of Veterinary Clinical Science, College of Veterinary Medicine, Seoul National University, Kwanak-ro 1, Daehak-Dong, Kwanak-Gu, Seoul, 08826 Republic of Korea
| | - Hee-Kyoung Kim
- Laboratory of Theriogenology, Department of Veterinary Clinical Science, College of Veterinary Medicine, Seoul National University, Kwanak-ro 1, Daehak-Dong, Kwanak-Gu, Seoul, 08826 Republic of Korea
| | - Goo Jang
- Laboratory of Theriogenology, Department of Veterinary Clinical Science, College of Veterinary Medicine, Seoul National University, Kwanak-ro 1, Daehak-Dong, Kwanak-Gu, Seoul, 08826 Republic of Korea
- LARTbio corporation, Seoul, Republic of Korea 06226
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Kong P, Yin M, Tang C, Zhu X, Bukulmez O, Chen M, Teng X. Effects of Early Cumulus Cell Removal on Treatment Outcomes in Patients Undergoing In Vitro Fertilization: A Retrospective Cohort Study. Front Endocrinol (Lausanne) 2021; 12:669507. [PMID: 34025582 PMCID: PMC8138552 DOI: 10.3389/fendo.2021.669507] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 04/09/2021] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Early cumulus cell removal combined with early rescue intracytoplasmic sperm injection (ICSI) has been widely practiced in many in vitro fertilization (IVF) centers in China in order to avoid total fertilization failure. However, uncertainty remains whether the pregnancy and neonatal outcomes are associated with early cumulus cell removal. OBJECTIVES To investigate if early cumulus cell removal alone after 4 hours co-incubation of gametes (4 h group), has detrimental effect on the pregnancy and neonatal outcomes in patients undergoing IVF, through a comparison with conventional cumulus cell removal after 20 hours of insemination (20 h group). METHODS This retrospective cohort study included 1784 patients who underwent their first fresh cleavage stage embryo transfer at the Centre for Assisted Reproduction of Shanghai First Maternity and Infant Hospital from June 2016 to December 2018 (4 h group, n=570; 20 h group, n=1214). A logistic regression analysis was performed to examine the independent association between early cumulus cell removal and pregnancy outcomes after adjustment for potential confounders. The neonatal outcomes between the two groups were compared. RESULTS When compared with the 20 h group, the 4 h group had similar pregnancy outcomes, including rates for biochemical pregnancy, clinical pregnancy, ongoing pregnancy, miscarriage, ectopic pregnancy, multiple pregnancy, live birth. There were 1073 infants delivered after embryo transfer (4 h group, n=337; 20 h group, n=736). Outcomes in both groups were similar for both singleton and twin gestations, including preterm birth rate and very preterm birth rate, mean birth weight, mean gestational age, sex ratio at birth and rate of congenital birth defects. In addition, findings pertaining to singleton gestations were also similar in the two groups for Z-scores (gestational age- and sex-adjusted birth weight), rates of small for gestational age, very small for gestational age, large for gestational age and very large for gestational age infants. CONCLUSIONS In this study early cumulus cell removal alone was not associated with adverse pregnancy and neonatal outcomes. From this perspective, early cumulus cell removal to assess for a potential early rescue ICSI is therefore considered to be a safe option in patients undergoing IVF.
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Affiliation(s)
- Pengcheng Kong
- Centre for Assisted Reproduction, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
| | - Mingru Yin
- Department of Assisted Reproduction, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chuanling Tang
- Centre for Assisted Reproduction, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xiuxian Zhu
- Centre for Assisted Reproduction, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
| | - Orhan Bukulmez
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Miaoxin Chen
- Centre for Assisted Reproduction, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
- *Correspondence: Xiaoming Teng, ; Miaoxin Chen,
| | - Xiaoming Teng
- Centre for Assisted Reproduction, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
- *Correspondence: Xiaoming Teng, ; Miaoxin Chen,
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de Lima MA, Morotti F, Bayeux BM, de Rezende RG, Botigelli RC, De Bem THC, Fontes PK, Nogueira MFG, Meirelles FV, Baruselli PS, da Silveira JC, Perecin F, Seneda MM. Ovarian follicular dynamics, progesterone concentrations, pregnancy rates and transcriptional patterns in Bos indicus females with a high or low antral follicle count. Sci Rep 2020; 10:19557. [PMID: 33177637 PMCID: PMC7658257 DOI: 10.1038/s41598-020-76601-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 09/02/2020] [Indexed: 11/22/2022] Open
Abstract
We evaluated the effect of the antral follicle count (AFC) on ovarian follicular dynamics, pregnancy rates, progesterone concentrations, and transcriptional patterns of genes in Nelore cattle (Bos taurus indicus) after a timed artificial insemination (TAI) programme. Cows were separated based on the AFC, and those with a high AFC showed a larger (P < 0.0001) ovarian diameter and area than those with a very low AFC. Females with a very low AFC exhibited a larger (P < 0.01) diameter of the dominant follicle at TAI (13.6 ± 0.3 vs. 12.2 ± 0.4 mm) and a tendency (P = 0.06) to have different serum progesterone concentrations (2.9 ± 0.3 vs. 2.1 ± 0.3 ng/mL; on day 18, considering day 0 as the beginning of the synchronization protocol) than those with a high AFC. The pregnancy rate was higher (P ≤ 0.05) in animals with a very low (57.9%) and low (53.1%) AFC than in those with a high AFC (45.2%). The expression of genes related to intercellular communication, meiotic control, epigenetic modulation, cell division, follicular growth, cell maintenance, steroidogenesis and cellular stress response was assessed on day 5. In females with a low AFC, 8 and 21 genes in oocytes and cumulus cells, respectively, were upregulated (P < 0.05), while 3 and 6 genes in oocytes and cumulus cells, respectively, were downregulated. The results described here will help elucidate the differences in ovarian physiology and the reproductive success of Bos indicus females with a low or high AFC.
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Affiliation(s)
| | - Fábio Morotti
- Animal Reproduction and Biotechnology Laboratory, State University of Londrina-UEL, Londrina, PR, Brazil.
- Laboratório de Reprodução Animal, DCV, CCA, UEL, Cx. Postal: 10.011, Londrina, PR, Cep: 86057-970, Brazil.
| | | | | | | | | | | | | | | | | | | | - Felipe Perecin
- Department of Veterinary Medicine, FZEA/USP, Pirassununga, SP, Brazil
| | - Marcelo Marcondes Seneda
- Animal Reproduction and Biotechnology Laboratory, State University of Londrina-UEL, Londrina, PR, Brazil
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10
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Pan Y, Wang M, Wang L, Zhang Q, Baloch AR, He H, Xu G, Soomro J, Cui Y, Yu S. Estrogen improves the development of yak (Bos grunniens) oocytes by targeting cumulus expansion and levels of oocyte-secreted factors during in vitro maturation. PLoS One 2020; 15:e0239151. [PMID: 32941516 PMCID: PMC7498018 DOI: 10.1371/journal.pone.0239151] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Accepted: 08/31/2020] [Indexed: 12/12/2022] Open
Abstract
The estrogen-signalling pathway is critical for normal follicular development; however, little is known about its importance during in vitro maturation (IVM) in large animals, particularly yaks (Bos grunniens). Through the present study, we aimed to determine the mechanisms underlying estrogen involvement in cumulus expansion and the subsequent development of cumulus-oocyte complexes (COCs). COCs were cultured in the maturation medium supplemented with different concentrations (10−6–10−3 mM) of 17β-estradiol (E2) or its receptor antagonist, fulvestrant, and quantitative reverse-transcription polymerase chain reaction (qRT-PCR) and western blot were performed to determine the expression of cumulus-expansion related factors and oocyte-secreted factors (OSFs). The cumulus expansion of COCs was observed using an inverted microscope, and COCs developmental ability were judged by the evaluation of cleavage and blastulation rates per inseminated oocytes by IVF, and the number of cells in the blastocyst. Cumulus expansion increased with 10−6–10−3 mM E2, but decreased with fulvestrant. HAS2, PTGS2, PTX3 and OSFs expression increased in the 10−6–10−3 mM E2 groups. Significantly higher cleavage and blastocyst rates were observed in the 10−4 mM E2 group than in the fulvestrant and 0 mM E2 groups. Moreover, in the 10−4 mM group, blastocysts at 7 days had higher cell counts than the other groups. In conclusion, the increase in cumulus expansion and subsequent oocyte development after the addition of E2 to IVM medium may have resulted from increased cumulus-expansion-related factor expression and OSF levels.
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Affiliation(s)
- Yangyang Pan
- Gansu Province Livestock Embryo Engineering Research Center, College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China
| | - Meng Wang
- Gansu Province Livestock Embryo Engineering Research Center, College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China
| | - Libin Wang
- Gansu Province Livestock Embryo Engineering Research Center, College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China
| | - Qian Zhang
- Gansu Province Livestock Embryo Engineering Research Center, College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China
| | - Abdul Rasheed Baloch
- National Center for International Research in Cell and Gene Therapy, Sino-British Research Centre for Molecular Oncology, Academy of Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Honghong He
- Gansu Province Livestock Embryo Engineering Research Center, College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China
| | - Gengquan Xu
- Gansu Province Livestock Embryo Engineering Research Center, College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China
| | - Jamila Soomro
- Department of Veterinary Physiology and Biochemistry, Faculty of Animal Husbandry and Veterinary Sciences, Sindh Agriculture University, Tandojam, Pakistan
| | - Yan Cui
- Gansu Province Livestock Embryo Engineering Research Center, College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China
| | - Sijiu Yu
- Gansu Province Livestock Embryo Engineering Research Center, College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China
- * E-mail:
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11
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Mastrorocco A, Cacopardo L, Martino NA, Fanelli D, Camillo F, Ciani E, Roelen BAJ, Ahluwalia A, Dell’Aquila ME. One-step automated bioprinting-based method for cumulus-oocyte complex microencapsulation for 3D in vitro maturation. PLoS One 2020; 15:e0238812. [PMID: 32915922 PMCID: PMC7485809 DOI: 10.1371/journal.pone.0238812] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Accepted: 08/23/2020] [Indexed: 12/14/2022] Open
Abstract
Three-dimensional in vitro maturation (3D IVM) is a promising approach to improve IVM efficiency as it could prevent cumulus-oocyte complex (COC) flattening and preserve its structural and functional integrity. Methods reported to date have low reproducibility and validation studies are limited. In this study, a bioprinting based production process for generating microbeads containing a COC (COC-microbeads) was optimized and its validity tested in a large animal model (sheep). Alginate microbeads were produced and characterized for size, shape and stability under culture conditions. COC encapsulation had high efficiency and reproducibility and cumulus integrity was preserved. COC-microbeads underwent IVM, with COCs cultured in standard 2D IVM as controls. After IVM, oocytes were analyzed for nuclear chromatin configuration, bioenergetic/oxidative status and transcriptional activity of genes biomarker of mitochondrial activity (TFAM, ATP6, ATP8) and oocyte developmental competence (KHDC3, NLRP5, OOEP and TLE6). The 3D system supported oocyte nuclear maturation more efficiently than the 2D control (P<0.05). Ooplasmic mitochondrial activity and reactive oxygen species (ROS) generation ability were increased (P<0.05). Up-regulation of TFAM, ATP6 and ATP8 and down-regulation of KHDC3, NLRP5 expression were observed in 3D IVM. In conclusion, the new bioprinting method for producing COC-microbeads has high reproducibility and efficiency. Moreover, 3D IVM improves oocyte nuclear maturation and relevant parameters of oocyte cytoplasmic maturation and could be used for clinical and toxicological applications.
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Affiliation(s)
- Antonella Mastrorocco
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari Aldo Moro, Bari, Italy
- * E-mail:
| | | | - Nicola Antonio Martino
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari Aldo Moro, Bari, Italy
| | - Diana Fanelli
- Department of Veterinary Sciences, University of Pisa, Pisa, Italy
| | | | - Elena Ciani
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari Aldo Moro, Bari, Italy
| | - Bernard A. J. Roelen
- Department of Clinical Sciences, Embryology, Anatomy and Physiology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Arti Ahluwalia
- Research Centre E. Piaggio, University of Pisa, Pisa, Italy
- Department of Information Engineering, University of Pisa, Pisa, Italy
| | - Maria Elena Dell’Aquila
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari Aldo Moro, Bari, Italy
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12
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Latorraca LB, Feitosa WB, Mariano C, Moura MT, Fontes PK, Nogueira MFG, Paula-Lopes FF. Autophagy is a pro-survival adaptive response to heat shock in bovine cumulus-oocyte complexes. Sci Rep 2020; 10:13711. [PMID: 32792582 PMCID: PMC7426922 DOI: 10.1038/s41598-020-69939-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 06/04/2020] [Indexed: 12/11/2022] Open
Abstract
Autophagy is a physiological mechanism that can be activated under stress conditions. However, the role of autophagy during oocyte maturation has been poorly investigated. Therefore, this study characterized the role of autophagy on developmental competence and gene expression of bovine oocytes exposed to heat shock (HS). Cumulus-oocyte-complexes (COCs) were matured at Control (38.5 °C) and HS (41 °C) temperatures in the presence of 0 and 10 mM 3-methyladenine (3MA; autophagy inhibitor). Western blotting analysis revealed that HS increased autophagy marker LC3-II/LC3-I ratio in oocytes. However, there was no effect of temperature for oocytes matured with 3MA. On cumulus cells, 3MA reduced LC3-II/LC3-I ratio regardless of temperature. Inhibition of autophagy during IVM of heat-shocked oocytes (3MA-41 °C) reduced cleavage and blastocyst rates compared to standard in vitro matured heat-shocked oocytes (IVM-41 °C). Therefore, the magnitude of HS detrimental effects was greater in the presence of autophagy inhibitor. Oocyte maturation under 3MA-41 °C reduced mRNA abundance for genes related to energy metabolism (MTIF3), heat shock response (HSF1), and oocyte maturation (HAS2 and GREM1). In conclusion, autophagy is a stress response induced on heat shocked oocytes. Inhibition of autophagy modulated key functional processes rendering the oocyte more susceptible to the deleterious effects of heat shock.
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Affiliation(s)
- Lais B Latorraca
- Department of Pharmacology, Institute of Bioscience, São Paulo State University (UNESP), District of Rubião Junior S/N, Botucatu, São Paulo, 18618970, Brazil
| | - Weber B Feitosa
- Department of Biological Sciences, Federal University of São Paulo, Diadema, São Paulo, 09972270, Brazil
| | - Camila Mariano
- Department of Biological Sciences, Federal University of São Paulo, Diadema, São Paulo, 09972270, Brazil
| | - Marcelo T Moura
- Department of Biological Sciences, Federal University of São Paulo, Diadema, São Paulo, 09972270, Brazil
| | - Patrícia K Fontes
- Department of Pharmacology, Institute of Bioscience, São Paulo State University (UNESP), District of Rubião Junior S/N, Botucatu, São Paulo, 18618970, Brazil
| | - Marcelo F G Nogueira
- Department of Pharmacology, Institute of Bioscience, São Paulo State University (UNESP), District of Rubião Junior S/N, Botucatu, São Paulo, 18618970, Brazil
- Department of Biological Sciences, School of Sciences and Languages, UNESP, Assis, São Paulo, Brazil
| | - Fabíola F Paula-Lopes
- Department of Pharmacology, Institute of Bioscience, São Paulo State University (UNESP), District of Rubião Junior S/N, Botucatu, São Paulo, 18618970, Brazil.
- Department of Biological Sciences, Federal University of São Paulo, Diadema, São Paulo, 09972270, Brazil.
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13
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Di Pietro M, Velazquez C, Matzkin ME, Frungieri MB, Peña MG, de Zúñiga I, Pascuali N, Irusta G, Bianchi MS, Parborell F, Abramovich D. Metformin has a direct effect on ovarian cells that is dependent on organic cation transporters. Mol Cell Endocrinol 2020; 499:110591. [PMID: 31546019 DOI: 10.1016/j.mce.2019.110591] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 09/19/2019] [Accepted: 09/20/2019] [Indexed: 12/13/2022]
Abstract
Metformin (MET) is the most widely prescribed hypoglycemic drug in type 2 diabetes and Polycystic Ovary Syndrome. Besides its effects on glucose metabolism, MET exerts beneficial effects on these patients' fertility. However, the exact mechanisms of action of MET on female fertility are still unclear. In this work, we analyzed a possible direct effect of MET on ovarian cells. We found expression of the organic cation transporters OCT1, OCT2 and OCT3, responsible for MET uptake into the cells, in rat granulosa cells and human cumulus cells. Furthermore, MET increased pAMPK and decreased VEGF levels both in vivo and in rat granulosa cells in culture. These last effects were reversed when OCTs were inhibited. Our results suggest that MET acts directly on ovarian cells regulating cell metabolism and VEGF expression. Our findings are relevant to optimize PCOS fertility treatment and to explore ovarian MET actions in other female pathologies.
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Affiliation(s)
- Mariana Di Pietro
- Instituto de Biología y Medicina Experimental-Consejo Nacional de Investigaciones Científicas y Técnicas (IByME-CONICET), Ciudad Autónoma de Buenos Aires, Argentina
| | - Candela Velazquez
- Instituto de Biología y Medicina Experimental-Consejo Nacional de Investigaciones Científicas y Técnicas (IByME-CONICET), Ciudad Autónoma de Buenos Aires, Argentina
| | - María Eugenia Matzkin
- Instituto de Biología y Medicina Experimental-Consejo Nacional de Investigaciones Científicas y Técnicas (IByME-CONICET), Ciudad Autónoma de Buenos Aires, Argentina
| | - Mónica Beatriz Frungieri
- Instituto de Biología y Medicina Experimental-Consejo Nacional de Investigaciones Científicas y Técnicas (IByME-CONICET), Ciudad Autónoma de Buenos Aires, Argentina; Cátedra de Química, Ciclo Básico Común, Universidad de Buenos Aires, Ciudad de Buenos Aires, Argentina
| | - Mariana Gómez Peña
- Centro Médico Pregna Medicina Reproductiva. Ciudad Autónoma de Buenos Aires, Argentina
| | - Ignacio de Zúñiga
- Centro Médico Pregna Medicina Reproductiva. Ciudad Autónoma de Buenos Aires, Argentina
| | - Natalia Pascuali
- Instituto de Biología y Medicina Experimental-Consejo Nacional de Investigaciones Científicas y Técnicas (IByME-CONICET), Ciudad Autónoma de Buenos Aires, Argentina
| | - Griselda Irusta
- Instituto de Biología y Medicina Experimental-Consejo Nacional de Investigaciones Científicas y Técnicas (IByME-CONICET), Ciudad Autónoma de Buenos Aires, Argentina
| | - María Silvia Bianchi
- Instituto de Biología y Medicina Experimental-Consejo Nacional de Investigaciones Científicas y Técnicas (IByME-CONICET), Ciudad Autónoma de Buenos Aires, Argentina
| | - Fernanda Parborell
- Instituto de Biología y Medicina Experimental-Consejo Nacional de Investigaciones Científicas y Técnicas (IByME-CONICET), Ciudad Autónoma de Buenos Aires, Argentina
| | - Dalhia Abramovich
- Instituto de Biología y Medicina Experimental-Consejo Nacional de Investigaciones Científicas y Técnicas (IByME-CONICET), Ciudad Autónoma de Buenos Aires, Argentina.
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14
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Zhang Y, Zhu Z, Li H, Zhu M, Peng X, Xin A, Qu R, He W, Fu J, Sun X. Resolvin E1 in Follicular Fluid Acts as a Potential Biomarker and Improves Oocyte Developmental Competence by Optimizing Cumulus Cells. Front Endocrinol (Lausanne) 2020; 11:210. [PMID: 32373069 PMCID: PMC7176900 DOI: 10.3389/fendo.2020.00210] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Accepted: 03/25/2020] [Indexed: 12/15/2022] Open
Abstract
Metabolic profile of follicular fluid (FF) has been investigated to look for biomarkers for oocyte quality. Resolvin E1 (RvE1), a potent pro-resolving mediator, was reported to have protective action in cell function. The study aimed to examine the predictive value of RvE1 for oocyte quality and to explore the cellular mechanism of RvE1 in improving oocyte competence. Metabolic profiles of 80 FF samples showed a higher level of RvE1 in group A (blastocysts scored ≥ B3BC and B3CB according to Gardner's blastocyst scoring system, N = 36) than that of group B (blastocysts scored < B3BC and B3CB, N = 44, P = 0.0018). The receiver operating characteristic (ROC) curve analysis showed that RvE1 level in FF below 8.96 pg/ml (AUC:0.75; 95%CI: 0.64-0.86; P = 0.00012) could predict poor oocyte quality with specificity of 97.22%, suggesting RvE1 as a potential biomarker to exclude inferior oocytes. Besides, the level of RvE1 was found to be significantly lower in FF than in serum (57.49 to 17.62 pg/ml; P=.0037) and was gradually accumulated in the culture medium of cumulus cells (CCs) during cell culture, which indicated that RvE1 came from both blood exudates and local secretion. The in vitro experiment revealed thecellular mechanism of RvE1 in improvingoocyte qualityby decreasing the cumulus cellapoptotic rate and increasing cell viability and proliferation. It is the first time thatthe role of RvE1 in reproduction is explored. In conclusion, RvE1 is valuable as a potential exclusive biomarker for oocyte selection andplays a role in improving oocyte quality.
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Affiliation(s)
- Yijing Zhang
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
- Shanghai JIAI Genetics & IVF Institute, Shanghai, China
- Key Laboratory of Female Reproductive Endocrine Related Diseases of Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Zhongyi Zhu
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
- Key Laboratory of Female Reproductive Endocrine Related Diseases of Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - He Li
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
- Shanghai JIAI Genetics & IVF Institute, Shanghai, China
| | - Mingjiang Zhu
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), Shanghai, China
| | - Xiandong Peng
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
- Shanghai JIAI Genetics & IVF Institute, Shanghai, China
| | - Aijie Xin
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
- Shanghai JIAI Genetics & IVF Institute, Shanghai, China
| | - Ronggui Qu
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
- Shanghai JIAI Genetics & IVF Institute, Shanghai, China
| | - Wen He
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
- Shanghai JIAI Genetics & IVF Institute, Shanghai, China
- Key Laboratory of Female Reproductive Endocrine Related Diseases of Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Jing Fu
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
- Shanghai JIAI Genetics & IVF Institute, Shanghai, China
- *Correspondence: Jing Fu
| | - Xiaoxi Sun
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
- Shanghai JIAI Genetics & IVF Institute, Shanghai, China
- Key Laboratory of Female Reproductive Endocrine Related Diseases of Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
- Xiaoxi Sun
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15
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Scaruffi P, Stigliani S, Cardinali B, Massarotti C, Lambertini M, Sozzi F, Dellepiane C, Merlo DF, Anserini P, Del Mastro L. Gonadotropin Releasing Hormone Agonists Have an Anti-apoptotic Effect on Cumulus Cells. Int J Mol Sci 2019; 20:ijms20236045. [PMID: 31801245 PMCID: PMC6928931 DOI: 10.3390/ijms20236045] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 11/22/2019] [Accepted: 11/25/2019] [Indexed: 01/26/2023] Open
Abstract
Background: Ovaries are sensitive to chemotherapy, which may lead to early depletion of primordial follicle reserve. One strategy for gonadal function preservation is temporary ovarian suppression with Gonadotropin Releasing Hormone agonists (GnRHa) during chemotherapy. To date, GnRHa protective mechanism of action remains not fully elucidated. Methods: We collected 260 immature cumulus cell-oocyte complexes (COC) from 111 women < 38 years old, with a normal ovarian reserve. The COC were randomly assigned to the following groups: (a) control; culture with the addition of (b) GnRHa; (c) cyclophosphamide; (d) cyclophosphamide plus GnRHa. After in vitro treatments, RNA and proteins were extracted from oocytes and cumulus cells (CC), separately. Potential effects of drugs were evaluated on GnRH receptors, apoptosis pathways, ceramide pathway, and glutathione synthesis by quantitative PCR and, whenever possible, by Western blot. Results: Cyclophosphamide triggered activation of the extrinsic pathway of apoptosis mediated by BAX in CC. The co-administration of GnRHa inhibited the apoptosis pathway in CC. According to our model, the GnRHa does not directly act on oocytes, which do not express GnRH receptors. Moreover, glutathione synthesis was decreased after GnRHa treatment both in CC and oocytes. Conclusion: Our data suggest that the protective mechanisms induced by GnRHa is mediated by an anti-apoptotic effect on CC.
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Affiliation(s)
- Paola Scaruffi
- UOS Physiopathology of Human Reproduction, IRCCS Ospedale Policlinico San Martino, 16132 Genoa, Italy; (P.S.); (S.S.); (F.S.); (P.A.)
| | - Sara Stigliani
- UOS Physiopathology of Human Reproduction, IRCCS Ospedale Policlinico San Martino, 16132 Genoa, Italy; (P.S.); (S.S.); (F.S.); (P.A.)
| | - Barbara Cardinali
- Breast Unit, IRCCS Ospedale Policlinico San Martino, 16132 Genoa, Italy; (B.C.); (C.D.); (L.D.M.)
| | - Claudia Massarotti
- Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, University of Genoa, 16132 Genoa, Italy;
| | - Matteo Lambertini
- Department of Internal Medicine, University of Genoa, 16132 Genoa, Italy
- U.O.C. Clinica di Oncologia Medica, IRCCS Ospedale Policlinico San Martino, 16132 Genoa, Italy
- Correspondence: ; Tel.: +39-010-555-4254
| | - Fausta Sozzi
- UOS Physiopathology of Human Reproduction, IRCCS Ospedale Policlinico San Martino, 16132 Genoa, Italy; (P.S.); (S.S.); (F.S.); (P.A.)
| | - Chiara Dellepiane
- Breast Unit, IRCCS Ospedale Policlinico San Martino, 16132 Genoa, Italy; (B.C.); (C.D.); (L.D.M.)
| | - Domenico Franco Merlo
- Infrastruttura Ricerca e Statistica, Azienda Unità Sanitaria Locale—IRCCS di Reggio Emilia, 42123 Reggio Emilia, Italy;
| | - Paola Anserini
- UOS Physiopathology of Human Reproduction, IRCCS Ospedale Policlinico San Martino, 16132 Genoa, Italy; (P.S.); (S.S.); (F.S.); (P.A.)
| | - Lucia Del Mastro
- Breast Unit, IRCCS Ospedale Policlinico San Martino, 16132 Genoa, Italy; (B.C.); (C.D.); (L.D.M.)
- Department of Internal Medicine, University of Genoa, 16132 Genoa, Italy
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16
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Soto-Heras S, Menéndez-Blanco I, Catalá MG, Izquierdo D, Thompson JG, Paramio MT. Biphasic in vitro maturation with C-type natriuretic peptide enhances the developmental competence of juvenile-goat oocytes. PLoS One 2019; 14:e0221663. [PMID: 31442286 PMCID: PMC6707569 DOI: 10.1371/journal.pone.0221663] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Accepted: 08/12/2019] [Indexed: 12/21/2022] Open
Abstract
In vitro embryo production success in juvenile animals is compromised due to their intrinsic lower oocyte quality. Conventional in vitro maturation (IVM) impairs oocyte competence by inducing spontaneous meiotic resumption. A series of experiments were performed to determine if maintaining meiotic arrest during a pre-maturation culture phase (pre-IVM) prior to conventional IVM improves oocyte competence of juvenile-goat (2 months old) cumulus-oocyte complexes (COCs). In experiment 1, COCs were cultured with C-type natriuretic peptide (CNP; 0, 50, 100, 200 nM) for 6 and 8 h. Nuclear stage was assessed, revealing no differences in the incidence of germinal vesicle (GV) breakdown. In experiment 2, the same CNP concentrations were assessed plus 10 nM estradiol, the known upstream agonist activating expression of NPR2, the exclusive receptor of CNP. CNP (200 nM) plus estradiol increased the rate of oocytes at GV stage at 6 h compared to control group (74.7% vs 28.3%; P<0.05) with predominantly condensed chromatin configuration. In experiment 3, relative mRNA quantification revealed NPR2 expression was down-regulated after pre-IVM (6 h). In experiment 4, analysis of transzonal projections indicated that pre-IVM maintained cumulus-oocyte communication after oocyte recovery. For experiments 5 and 6, biphasic IVM (6 h pre-IVM with CNP and estradiol, plus 24 h IVM) and control IVM (24 h) were compared. Biphasic IVM increased intra-oocyte glutathione and decreased ROS, up-regulated DNA-methyltransferase 1 and pentraxin 3 expression and led to an increase in rate of blastocyst development compared to control group (30.2% vs 17.2%; P<0.05). In conclusion, a biphasic IVM, including a pre-IVM with CNP, maintains oocyte meiotic arrest for 6 h and enhances the embryo developmental competence of oocytes from juvenile goats.
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Affiliation(s)
- Sandra Soto-Heras
- Departament de Ciència Animal i dels Aliments, Facultat de Veterinària, Universitat Autònoma de Barcelona, Bellaterra, Barcelona, Spain
| | - Irene Menéndez-Blanco
- Departament de Ciència Animal i dels Aliments, Facultat de Veterinària, Universitat Autònoma de Barcelona, Bellaterra, Barcelona, Spain
| | - Maria-Gracia Catalá
- Departament de Ciència Animal i dels Aliments, Facultat de Veterinària, Universitat Autònoma de Barcelona, Bellaterra, Barcelona, Spain
| | - Dolors Izquierdo
- Departament de Ciència Animal i dels Aliments, Facultat de Veterinària, Universitat Autònoma de Barcelona, Bellaterra, Barcelona, Spain
| | - Jeremy G. Thompson
- Robinson Research Institute, School of Paedriatics and Reproductive Health, The University of Adelaide, Adelaide, South Australia, Australia
- Adelaide Medical School, The University of Adelaide, Adelaide, South Australia, Australia
- Australian Research Council Centre of Excellence for Nanoscale BioPhotonics and Institute for Photonics and Advanced Sensing, Davies Research Centre, The University of Adelaide, Adelaide, South Australia, Australia
| | - Maria-Teresa Paramio
- Departament de Ciència Animal i dels Aliments, Facultat de Veterinària, Universitat Autònoma de Barcelona, Bellaterra, Barcelona, Spain
- * E-mail:
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Pogrmic-Majkic K, Samardzija Nenadov D, Fa S, Stanic B, Trninic Pjevic A, Andric N. BPA activates EGFR and ERK1/2 through PPARγ to increase expression of steroidogenic acute regulatory protein in human cumulus granulosa cells. Chemosphere 2019; 229:60-67. [PMID: 31075703 DOI: 10.1016/j.chemosphere.2019.04.174] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 04/05/2019] [Accepted: 04/23/2019] [Indexed: 06/09/2023]
Abstract
Bisphenol A (BPA) negatively affects steroid production in human luteinized granulosa cells (GC). This study was designed to address two important questions: (1) whether BPA exerts the same disruptive effect in human cumulus granulosa cells (hCGC) and (2) to reveal the molecular mechanism underlying the BPA's action on steroidogenesis. We used cultured hCGC since these cells exert the properties of GC from early antral follicles. Results showed that BPA at 100 μM decreased estradiol level and CYP19A1 mRNA, but increased progesterone production, steroidogenic acute regulatory protein (STAR) and peroxisome proliferator-activated receptor gamma (PPARγ) mRNA expression after 48 h. Shorter (6 h) exposure to BPA elevated PPARγ mRNA level in hCGC. Addition of ERK1/2 (U0126), EGFR (AG1478) and PPARγ (GW9662) inhibitors prevented the BPA-induced STAR and PPARγ mRNA expression. Western blot analysis showed that BPA induced a rapid EGFR and ERK1/2 activation. The BPA-induced EGFR phosphorylation was prevented by addition of the PPARγ inhibitor, whereas the BPA-induced ERK1/2 activation was prevented by addition of the EGFR or PPARγ inhibitor. These data show that BPA increases the progesterone and decreases the estradiol biosynthetic pathway in hCGC. Augmentation of the progesterone biosynthetic pathway is mediated through the PPARγ-dependent activation of EGFR and ERK1/2, leading to increased expression of STAR mRNA.
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Affiliation(s)
| | | | - Svetlana Fa
- University of Novi Sad, Faculty of Sciences, Department of Biology and Ecology, Serbia
| | - Bojana Stanic
- University of Novi Sad, Faculty of Technical Sciences, Department of Environmental Engineering and Occupational Safety and Health, Serbia
| | - Aleksandra Trninic Pjevic
- University of Novi Sad, Faculty of Medicine, Novi Sad, Serbia; Clinic for Gynecology and Obstetrics, Clinical Center of Vojvodina, Novi Sad, Serbia
| | - Nebojsa Andric
- University of Novi Sad, Faculty of Sciences, Department of Biology and Ecology, Serbia.
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Mohammed AENA, Al-Suwaiegh S, Al-Shaheen T. Do the Cytoplast and Nuclear Material of Germinal Vesicle Oocyte Support Developmental Competence Upon Reconstruction with Embryonic/Somatic Nucleus. Cell Reprogram 2019; 21:163-170. [PMID: 31313935 DOI: 10.1089/cell.2019.0032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Maturation conditions and oocytes quality have substantial roles on developmental competence of unreconstructed or reconstructed oocytes. Cloning has been reported successfully with low efficiency through embryonic or somatic nuclear transfer into enucleated metaphase II oocytes. It has been suggested that introducing embryonic or somatic nucleus to cytoplast at earlier stage might improve reprogramming of the introduced nucleus. In addition, the synchronization between the donor nucleus and recipient cytoplasts might effect on reprogramming and further embryonic development. Therefore, the question arises; does the cytoplast of germinal vesicle (GV) oocyte containing nuclear sap improve developmental competence upon reconstruction with embryonic/somatic nucleus compared with MII cytoplast. It has been indicated that GV material is essential for remodeling of sperm or embryonic or somatic nucleus in GV oocyte cytoplast and their further embryonic developmental competence. GV cytoplasts could be obtained through micromanipulation. Different micromanipulation techniques of immature oocytes at different stages were adapted in addition to introducing donor nuclei at G0/G1, S and G2/M phase, and enucleolation technique as well. Upon micromanipulation, it could obtain GV cytoplasts; cumulus-free and without GV material, cumulus-complexes and without GV material, cumulus-free and with GV material, and cumulus-complexes and with GV material in addition to enucleolated GV oocytes. Therefore, this short review will address briefly the importance of maturation conditions, cumulus cells, oocyte quality, the techniques of enucleation GV oocyte, the cell cycle stage of the introduced donor cell, or nucleus for oocyte maturation and embryo development.
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Affiliation(s)
- Abd El-Nasser Ahmed Mohammed
- 1Department of Animal & Fish Production, College of Agriculture and Food Sciences, King Faisal University, Al-Ahsaa, Saudi Arabia
- 2Department of Animal Production, Faculty of Agriculture, Assiut University, Assiut, Egypt
- 3Department of Experimental Embryology, Institute of Genet & Anim Breed, Polish Academy Sciences, Warsaw, Poland
| | - Saker Al-Suwaiegh
- 1Department of Animal & Fish Production, College of Agriculture and Food Sciences, King Faisal University, Al-Ahsaa, Saudi Arabia
| | - Tarek Al-Shaheen
- 1Department of Animal & Fish Production, College of Agriculture and Food Sciences, King Faisal University, Al-Ahsaa, Saudi Arabia
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Albertini DF. The problem with being choosy when it comes to sperm selection. J Assist Reprod Genet 2019; 36:1297-1298. [PMID: 31297655 DOI: 10.1007/s10815-019-01518-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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20
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Cheng L, Qin Y, Hu X, Ren L, Zhang C, Wang X, Wang W, Zhang Z, Hao J, Guo M, Wu Z, Tian J, An L. Melatonin protects in vitro matured porcine oocytes from toxicity of Aflatoxin B1. J Pineal Res 2019; 66:e12543. [PMID: 30584671 DOI: 10.1111/jpi.12543] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 05/31/2018] [Accepted: 06/22/2018] [Indexed: 01/08/2023]
Abstract
Aflatoxin B1 (AFB1) is a major food and feed contaminant that threaten public health. Previous studies indicate that AFB1 exposure disrupted oocyte maturation. However, an effective and feasible method is unavailable for protecting oocytes against toxicity of AFB1. In the present study, using in vitro matured porcine oocytes and parthenogenetic embryos as model, we confirmed that AFB1 exposure during in vitro oocyte maturation (IVM) significantly impaired both nuclear and cytoplasmic maturation in a dose- and time-dependent manner. The different concentrations of melatonin were also tested for their protective effects on oocytes against the AFB1-induced toxicity. Our results showed that supplementation of a relative high concentration of melatonin (10-3 mol/L) during IVM efficiently reversed the impaired development rate and blastocyst quality, to the levels comparable to those of the control group. Further analysis indicated that melatonin application efficiently alleviated reactive oxygen species accumulation and initiation of apoptosis induced by AFB1 exposure. In addition, disrupted GSH/GPX system, as well as inhibited mitochondrial DNA (mtDNA) replication and mitochondrial biogenesis in AFB1-treated oocytes, can be notably reversed by melatonin application. Furthermore, cumulus cells may be important in mediating the toxicity of AFB1 to oocytes, and the metabolism of AFB1 in cumulus cells can be depressed by melatonin. To the best of our knowledge, this is the first report to confirm that melatonin application can efficiently protect oocytes from AFB1-induced toxicity. Our study provides a promising and practical strategy for alleviating or reversing AFB1-induced female reproductive toxicity in both clinical treatment and domestic reproductive management.
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Affiliation(s)
- Linghua Cheng
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Yusheng Qin
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Xiao Hu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Likun Ren
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
- Assisted Reproductive Centre of the Department of Gynaecology and Obstetrics, PLA Naval General Hospital, Beijing, China
| | - Chao Zhang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Xiaodong Wang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Wenjuan Wang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Zhenni Zhang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Jin Hao
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Min Guo
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Zhonghong Wu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Jianhui Tian
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Lei An
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
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Hobeika E, Armouti M, Kala H, Fierro MA, Winston NJ, Scoccia B, Zamah AM, Stocco C. Oocyte-Secreted Factors Synergize With FSH to Promote Aromatase Expression in Primary Human Cumulus Cells. J Clin Endocrinol Metab 2019; 104:1667-1676. [PMID: 30541132 PMCID: PMC6441017 DOI: 10.1210/jc.2018-01705] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Accepted: 12/06/2018] [Indexed: 01/16/2023]
Abstract
CONTEXT The role of growth differentiation factor 9 (GDF9) and bone morphogenetic protein 15 (BMP15) on aromatase regulation is poorly understood in humans. OBJECTIVE Determine GDF9 and BMP15 effects on FSH stimulation of estradiol production in primary human cumulus granulosa cells (GCs). We hypothesized that the combination of GDF9 and BMP15 potentiates FSH-induced aromatase expression. DESIGN Primary human cumulus GCs in culture. SETTING University infertility center. PATIENTS OR OTHER PARTICIPANTS GCs of 60 women undergoing in vitro fertilization were collected. INTERVENTIONS Cells were treated with GDF9 and/or BMP15 (GB) in the presence or absence of FSH, dibutyryl cAMP, or SMAD inhibitors. MAIN OUTCOME MEASURES Promoter activity, mRNA, protein, and estradiol levels were quantified. RESULTS FSH and GB treatment increased CYP19A1 promoter activity, mRNA, and protein levels as well as estradiol when compared with cells treated with FSH only. GB treatment potentiated cAMP stimulation of aromatase and IGF2 stimulation by FSH. GB effects were inhibited by SMAD3 inhibitors and IGF1 receptor inhibitors. GB, but not FSH, stimulates SMAD3 phosphorylation. CONCLUSION The combination of GDF9 and BMP15 potently stimulates the effect of FSH and cAMP on CYP19a1 promoter activity and mRNA/protein levels. These effects translate into an increase in estradiol production. This potentiation seems to occur through activation of the SMAD2/3 and SMAD3 signaling pathway and involves, at least in part, the effect of the IGF system.
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Affiliation(s)
- Elie Hobeika
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, University of Illinois at Chicago College of Medicine, Chicago, Illinois
| | - Marah Armouti
- Department of Physiology and Biophysics, University of Illinois at Chicago, Chicago, Illinois
| | - Hamsini Kala
- Department of Physiology and Biophysics, University of Illinois at Chicago, Chicago, Illinois
| | - Michele A Fierro
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, University of Illinois at Chicago College of Medicine, Chicago, Illinois
| | - Nicola J Winston
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, University of Illinois at Chicago College of Medicine, Chicago, Illinois
| | - Bert Scoccia
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, University of Illinois at Chicago College of Medicine, Chicago, Illinois
| | - Alberuni M Zamah
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, University of Illinois at Chicago College of Medicine, Chicago, Illinois
| | - Carlos Stocco
- Department of Physiology and Biophysics, University of Illinois at Chicago, Chicago, Illinois
- Correspondence and Reprint Requests: Carlos Stocco, PhD, Department of Physiology and Biophysics, University of Illinois at Chicago, 835 South Wolcott Avenue, Chicago, Illinois 60612. E-mail:
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Fang Y, Zhang J, Li Y, Guo X, Li J, Zhong R, Zhang X. Melatonin-induced demethylation of antioxidant genes increases antioxidant capacity through RORα in cumulus cells of prepubertal lambs. Free Radic Biol Med 2019; 131:173-183. [PMID: 30472366 DOI: 10.1016/j.freeradbiomed.2018.11.027] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2018] [Revised: 11/05/2018] [Accepted: 11/21/2018] [Indexed: 12/25/2022]
Abstract
Physical damage and oxidative stress may occur in prepubertal cumulus cells, due to insufficient glutathione synthesis. To determine potential epigenetic mechanisms related to antioxidant effects of melatonin on ovine prepubertal cumulus cells, 30 lambs, 4-wk-old were randomly allocated into two groups: a control (C, n = 20) group and a melatonin (M, n = 10) group given a subcutaneous implant containing 18 mg melatonin. All lambs were superovulated (250 IU FSH and 250 IU eCG). Cumulus cells from germinal vesicle stage cumulus oocyte complexes (COCs) were collected by ovarian follicular aspiration and dissociated with hyaluronidase. Compared to the C group, the M group had greater superovulation, better antioxidant capacity, a higher proportion of fully expanded COCs and a lower proportion of apoptotic cumulus cells (P < 0.05). Melatonin up-regulated mRNA expression of genes for melatonin receptors MT1 and nuclear binding site RORα, antioxidants (SOD1, GPx4 and CAT) and cumulus cell expansion (PTX3, HAS2 and PTGS2), as well as Bcl2, but down-regulated expression of Bax (P < 0.05). Regarding epigenetics, there were less methylation at five CpG sites of SOD1, three CpG sites of GPx4 and two CpG sites of CAT in M versus C groups (P < 0.05), leading to lower total methylation of SOD1, GPx4 and CAT promoters region on M group (P < 0.05). In a mechanistic study, addition of MT1 or RORα antagonist increased ROS and MDA concentrations, but decreased T-AOC, GPx, CAT and T-SOD concentrations (P < 0.05), whereas there were no significant difference between the melatonin and MT2 antagonist treatment groups for T-AOC, GPx, CAT and T-SOD concentrations. Furthermore, addition of RORα agonist decreased total DNA methylation of SOD1, GPx4 and CAT, with no significant difference after MT1 agonist treatment. These studies provided new information regarding epigenetic mechanisms by which melatonin promoted ovine prepubertal cumulus cells antioxidant through RORα, both in vitro and in vivo.
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Affiliation(s)
- Yi Fang
- Jilin Provincial Key Laboratory of Grassland Farming, Northeast Institute of Geography and Agoecology, Chinese Academy of Sciences, Changchun, Jilin 130062, China
| | - Jinlong Zhang
- Animal Husbandry and Veterinary Research Institute of Tianjin, Tianjin 300412, China
| | - Yihai Li
- Animal Husbandry and Veterinary Research Institute of Tianjin, Tianjin 300412, China
| | - Xiaofei Guo
- Animal Husbandry and Veterinary Research Institute of Tianjin, Tianjin 300412, China
| | - Junjie Li
- College of animal science and technology, Agricultural University of Hebei, Baoding, Hebei 071000, China
| | - Rongzhen Zhong
- Jilin Provincial Key Laboratory of Grassland Farming, Northeast Institute of Geography and Agoecology, Chinese Academy of Sciences, Changchun, Jilin 130062, China.
| | - Xiaosheng Zhang
- Animal Husbandry and Veterinary Research Institute of Tianjin, Tianjin 300412, China.
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Schutt AK, Blesson CS, Hsu JW, Valdes CT, Gibbons WE, Jahoor F, Yallampalli C. Preovulatory exposure to a protein-restricted diet disrupts amino acid kinetics and alters mitochondrial structure and function in the rat oocyte and is partially rescued by folic acid. Reprod Biol Endocrinol 2019; 17:12. [PMID: 30654812 PMCID: PMC6337842 DOI: 10.1186/s12958-019-0458-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Accepted: 01/14/2019] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Detrimental exposures during pregnancy have been implicated in programming offspring to develop permanent changes in physiology and metabolism, increasing the risk for developing diseases in adulthood such as hypertension, diabetes, heart disease and obesity. This study investigated the effects of protein restriction on the metabolism of amino acids within the oocyte, liver, and whole organism in a rat model as well as effects on mitochondrial ultrastructure and function in the cumulus oocyte complex. METHODS Wistar outbred female rats 8-11 weeks of age (n = 24) were assigned to three isocaloric dietary groups, including control (C), low protein (LP) and low protein supplemented with folate (LPF). Animals were superovulated and 48 h later underwent central catheterization. Isotopic tracers of 1-13C-5C2H3-methionine, 2H2-cysteine, U-13C3-cysteine and U-13C3-serine were administered by a 4 h prime-constant rate infusion. After sacrifice, oocytes were denuded of cumulus cells and liver specimens were obtained. RESULTS Oocytes demonstrated reduced serine flux in LP vs. LPF (p < 0.05), reduced cysteine flux in LP and LPF vs. C (p < 0.05), and a trend toward reduced transsulfuration in LP vs. C and LPF. Folic acid supplementation reversed observed effects on serine flux and transsulfuration. Preovulatory protein restriction increased whole-body methionine transmethylation, methionine transsulfuration and the flux of serine in LP and LPF vs. C (p = 0.003, p = 0.002, p = 0.005). The concentration of glutathione was increased in erythrocytes and liver in LP and LPF vs. C (p = 0.003 and p = 0.0003). Oocyte mitochondrial ultrastructure in LP and LPF had increased proportions of abnormal mitochondria vs. C (p < 0.01 and p < 0.05). Cumulus cell mitochondrial ultrastructure in LP and LPF groups had increased proportions of abnormal mitochondria vs. C (p < 0.001 and p < 0.05). Preovulatory protein restriction altered oocyte expression of Drp1, Opa-1, Mfn1/2, Parl and Ndufb6 (p < 0.05) and Hk2 (p < 0.01), which are genes involved in mitochondrial fission (division) and fusion, mitochondrial apoptotic mechanisms, respiratory electron transport and glucose metabolism. CONCLUSIONS Preovulatory protein restriction resulted in altered amino acid metabolism, abnormal cumulus oocyte complex mitochondrial ultrastructure and differential oocyte expression of genes related to mitochondrial biogenesis.
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Affiliation(s)
- Amy K. Schutt
- 0000 0001 2160 926Xgrid.39382.33Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, TX USA
- 0000 0001 2200 2638grid.416975.8Texas Children’s Hospital Pavilion for Women, 6651 Main St, Suite F1020, Houston, TX 77030 USA
| | - Chellakkan S. Blesson
- 0000 0001 2160 926Xgrid.39382.33Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, TX USA
| | - Jean W. Hsu
- 0000 0001 2160 926Xgrid.39382.33USDA/ARS Children’s Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, Houston, TX USA
| | - Cecilia T. Valdes
- 0000 0001 2160 926Xgrid.39382.33Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, TX USA
| | - William E. Gibbons
- 0000 0001 2160 926Xgrid.39382.33Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, TX USA
| | - Farook Jahoor
- 0000 0001 2160 926Xgrid.39382.33USDA/ARS Children’s Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, Houston, TX USA
| | - Chandra Yallampalli
- 0000 0001 2160 926Xgrid.39382.33Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, TX USA
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Bo Pan, Julang Li. MicroRNA-21 up-regulates metalloprotease by down-regulating TIMP3 during cumulus cell-oocyte complex in vitro maturation. Mol Cell Endocrinol 2018; 477:29-38. [PMID: 29775626 DOI: 10.1016/j.mce.2018.05.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Revised: 04/25/2018] [Accepted: 05/14/2018] [Indexed: 11/15/2022]
Abstract
Cumulus cells and the remodeling of their extracellular matrix around oocytes are essential for oocyte maturation and ovulation in the ovary. An important extracellular metalloprotease, ADAMTS1, and its partner VERSICAN, mediate essential cumulus-oocyte-complex (COC) structural remodeling. However, how the expression of these proteinases is regulated during oocyte maturation is unclear. Here we report that both ADAMTS1 and VERSICAN significantly increased in porcine cumulus cells during COC in vitro maturation (IVM). Interestingly, one of the tissue inhibitors of the metalloproteinase family member, TIMP3, was found to be significantly decreased in cumulus cells during this process. Down-regulation of TIMP3 using specific small interfering RNA decreased TIMP3 expression, while increased the levels of ADAMTS1 and VERSICAN, suggesting an inverse relationship between TIMP3, the metalloprotease, and the breakdown product of its substrate. MiR-21 significantly increased in cumulus cells during COC maturation. Knockdown of miR-21 in cumulus cells during COC maturation resulted in increased TIMP3 and decreased ADAMTS1 and VERSICAN expression, which is accompanied by a decrease in cumulus cell expansion and the ratio of oocytes that reached MII stage. In contrast, over-expression of miR-21 decreased TIMP3 and increased ADAMTS1, and enhanced cumulus cell expansion and oocyte maturation. Moreover, in silico prediction revealed that a miR-21 binding site is present at the 3-untranslated region (3-UTR) of the TIMP3 mRNA, which was further confirmed to be the target site of miR-21 by luciferase gene reporter assays. Our findings revealed that miR-21 promotes cumulus expansion and oocyte maturation via down-regulating TIMP3, and subsequent increase of ADAMTS1 and VERSICAN during in vitro COC maturation.
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Weng L, Lee GY, Liu J, Kapur R, Toth TL, Toner M. On-chip oocyte denudation from cumulus-oocyte complexes for assisted reproductive therapy. Lab Chip 2018; 18:3892-3902. [PMID: 30465050 PMCID: PMC6335650 DOI: 10.1039/c8lc01075g] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Human infertility can be treated using assisted reproductive technology (ART) such as intracytoplasmic sperm injection (ICSI). But current ART techniques suffer from multiple cumbersome processes requiring technically skilled personnel. Microfluidics technologies offer unique opportunities to streamline ART procedures, reduce stress imposed upon gametes and embryos, and minimize the operator-to-operator variability. However, there have been no automated and continuous processing systems that can reduce the dependence on well-trained embryologists to obtain ICSI-ready oocytes from patients. In this study, using mouse models, we developed a microfluidic device to denude oocytes from the surrounding cumulus-corona cell mass, facilitating the evaluation of oocyte quality and the injection of sperm. Enzyme-treated cumulus-oocyte complexes pass through a series of jagged-surface constriction microchannels of optimized geometries. The jagged inner wall of constriction channels facilitates stripping off of the cumulus-corona cell mass. Oocytes that were denuded by the device showed comparable fertilization and developmental competence compared with mechanical pipetting. The device developed in this study achieves the automation of a manual process for oocyte denudation in a continuous flow, as well as improving standardization and ease-of-use. Our denudation-on-a-chip approach requires inexpensive and simple equipment, which represents one step forward towards improving the accessibility and affordability of assisted reproductive therapy.
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Affiliation(s)
- Lindong Weng
- BioMEMS Resource Center, The Center for Engineering in Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02129, USA.
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Borys S, Brązert M, Jankowski M, Kocherova I, Ożegowska K, Celichowski P, Nawrocki MJ, Kranc W, Bryja A, Kulus M, Jeseta M, Pieńkowski W, Bręborowicz A, Bukowska D, Antosik P, Pawelczyk L, Skowroński MT, Brüssow KP, Bruska M, Zabel M, Nowicki M, Kempisty B. Enzyme linked receptor protein signaling pathway is one of the ontology groups that are highly up-regulated in porcine oocytes before in vitro maturation. J BIOL REG HOMEOS AG 2018; 32:1089-1103. [PMID: 30334402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Before being able to fully participate in the processes associated with its function as a female gamete, the oocyte needs to undergo a range of changes to achieve its mature form. These morphological, biochemical and metabolomic processes are induced by the somatic tissues surrounding the oocyte, through the expression of specific transcription and growth factors. The maturation of the oocyte is highly important for the proceedings that lead to successful fertilization, early embryonic development and implantation. Domestic pigs were used as models for our study, with the cumulus-oocyte complexes obtained from the ovaries that were recovered at slaughter. After shedding of the cumulus, oocytes were assessed with BCB test, with the viable ones chosen to undergo in vitro maturation. With the use of expression microarrays, we analyzed gene expression before and after IVM and detected major changes in both genes that were proven to be associated with oocyte maturation before (FOS, VEGFA, CHRDL1, TGFBR3, FST, INSR, ID1, TXNIP, SMAD4, MAP3K1, EIF2AK3 and KIT) and genes not previously linked with reproduction associated processes (MYO1E, PHIP, KLF10 and SHOC2). All the genes were briefly described, with consideration of possible involvement of the newly discovered elements of the transcriptome in the process of oocyte maturation.
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Affiliation(s)
- S Borys
- Department of Anatomy, Poznan University of Medical Sciences, Poznan, Poland
| | - M Brązert
- Department of Infertility and Reproductive Endocrinology, Poznan University of Medical Sciences, Poznan, Poland
| | - M Jankowski
- Department of Anatomy, Poznan University of Medical Sciences, Poznan, Poland
| | - I Kocherova
- Department of Anatomy, Poznan University of Medical Sciences, Poznan, Poland
| | - K Ożegowska
- Department of Infertility and Reproductive Endocrinology, Poznan University of Medical Sciences, Poznan, Poland
| | - P Celichowski
- Department of Histology and Embryology, Poznan University of Medical Sciences, Poznan, Poland
| | - M J Nawrocki
- Department of Anatomy, Poznan University of Medical Sciences, Poznan, Poland
| | - W Kranc
- Department of Anatomy, Poznan University of Medical Sciences, Poznan, Poland
| | - A Bryja
- Department of Anatomy, Poznan University of Medical Sciences, Poznan, Poland
| | - M Kulus
- Veterinary Center, Nicolaus Copernicus University in Toruń, Torun, Poland
| | - M Jeseta
- Department of Obstetrics and Gynecology, University Hospital and Masaryk University, Brno, Czech Republic
| | - W Pieńkowski
- Division of Perinatology and Women's Diseases, Poznan University of Medical Sciences, Poznan, Poland
| | - A Bręborowicz
- Department of Pathophysiology, Poznań University of Medical Sciences, Poznan, Poland
| | - D Bukowska
- Veterinary Center, Nicolaus Copernicus University in Toruń, Torun, Poland
| | - P Antosik
- Veterinary Center, Nicolaus Copernicus University in Toruń, Torun, Poland
| | - L Pawelczyk
- Department of Infertility and Reproductive Endocrinology, Poznan University of Medical Sciences, Poznan, Poland
| | - M T Skowroński
- Veterinary Center, Nicolaus Copernicus University in Toruń, Torun, Poland
| | - K P Brüssow
- Veterinary Center, Nicolaus Copernicus University in Toruń, Torun, Poland
| | - M Bruska
- Department of Anatomy, Poznan University of Medical Sciences, Poznan, Poland
| | - M Zabel
- Department of Human Morphology and Embryology, Wroclaw University of Medical Sciences, Wroclaw, Poland
- Division of Anatomy and Histology, University of Zielona Góra, Zieloga Góra, Poland
| | - M Nowicki
- Department of Histology and Embryology, Poznan University of Medical Sciences, Poznan, Poland
| | - B Kempisty
- Department of Obstetrics and Gynecology, University Hospital and Masaryk University, Brno, Czech Republic
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Da Broi MG, Giorgi VSI, Wang F, Keefe DL, Albertini D, Navarro PA. Influence of follicular fluid and cumulus cells on oocyte quality: clinical implications. J Assist Reprod Genet 2018; 35:735-751. [PMID: 29497954 PMCID: PMC5984887 DOI: 10.1007/s10815-018-1143-3] [Citation(s) in RCA: 139] [Impact Index Per Article: 23.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2017] [Accepted: 02/19/2018] [Indexed: 01/03/2023] Open
Abstract
An equilibrium needs to be established by the cellular and acellular components of the ovarian follicle if developmental competence is to be acquired by the oocyte. Both cumulus cells (CCs) and follicular fluid (FF) are critical determinants for oocyte quality. Understanding how CCs and FF influence oocyte quality in the presence of deleterious systemic or pelvic conditions may impact clinical decisions in the course of managing infertility. Given that the functional integrities of FF and CCs are susceptible to concurrent pathological conditions, it is important to understand how pathophysiological factors influence natural fertility and the outcomes of pregnancy arising from the use of assisted reproduction technologies (ARTs). Accordingly, this review discusses the roles of CCs and FF in ensuring oocyte competence and present new insights on pathological conditions that may interfere with oocyte quality by altering the intrafollicular environment.
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Affiliation(s)
- M. G. Da Broi
- Division of Human Reproduction, Department of Gynecology and Obstetrics, Ribeirão Preto School of Medicine, University of São Paulo, Avenida Bandeirantes, 3900, Ribeirao Preto, SP CEP: 14049-900 Brazil
| | - V. S. I. Giorgi
- Division of Human Reproduction, Department of Gynecology and Obstetrics, Ribeirão Preto School of Medicine, University of São Paulo, Avenida Bandeirantes, 3900, Ribeirao Preto, SP CEP: 14049-900 Brazil
| | - F. Wang
- Department of Obstetrics and Gynecology, Laboratory of Reproductive Medicine, NYU School of Medicine, 180 Varick Street, New York, NY 10014 USA
| | - D. L. Keefe
- Department of Obstetrics and Gynecology, Laboratory of Reproductive Medicine, NYU School of Medicine, 180 Varick Street, New York, NY 10014 USA
- Department of Obstetrics and Gynecology, New York University, Langone Medical Center, New York, NY 10016 USA
| | - D. Albertini
- The Center for Human Reproduction, New York, NY USA
| | - P. A. Navarro
- Division of Human Reproduction, Department of Gynecology and Obstetrics, Ribeirão Preto School of Medicine, University of São Paulo, Avenida Bandeirantes, 3900, Ribeirao Preto, SP CEP: 14049-900 Brazil
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Rojo JL, Linari M, Young KA, Peluffo MC. Stromal-derived factor 1 directly promotes genes expressed within the ovulatory cascade in feline cumulus oocyte complexes. J Assist Reprod Genet 2018; 35:785-792. [PMID: 29516335 PMCID: PMC5984889 DOI: 10.1007/s10815-018-1150-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Accepted: 02/26/2018] [Indexed: 01/02/2023] Open
Abstract
PURPOSE We hypothesized that the chemokine SDF1/CXCR4 system was present in feline cumulus-oocyte complexes (COCs) and that COCs cultured with SDF1 would directly upregulate gene expression in the ovulatory cascade. METHODS Ovaries (n = 50) were obtained from adult domestic cats during the breeding season and COCs were recovered from antral follicles. Because IVM media triggers cumulus-oocyte expansion, culture conditions needed to be optimized to study periovulatory genes. After optimization, the effects of 25 ng/ml SDF1 and the CXCR4 inhibitor were examined in a COC culture for 3, 12, and 24 h. RESULTS MEM-hepes with 1% of charcoal stripped-FBS was the optimized culture medium, assessed by the expansion of COCs at 24 h in the gonadotropin (GNT) group but not in the media with serum alone. The mRNA expression of HAS2, TNFAIP6, PTX3, and AREG peaked at 3 h in GNT group as compared to all other groups (p < 0.05). COCs cultured with SDF1 showed increased HAS2 and TNFAIP6 mRNA expression at 3 h compared to negative controls and to the CXCR4 inhibitor group. CXCR4 and SDF1 immunostaining was present in both cumulus cells and the oocyte. CONCLUSIONS These results demonstrate that GNT stimulation upregulates key periovulatory genes and expansion in feline COCs from antral follicles, and support the use of this culture system to examine molecular processes within the COC. In addition, SDF1 directly promotes key periovulatory genes in feline COCs, suggesting that the SDF1-CXCR4 pathway may extend its function beyond a chemoattractant, and may play a direct role within the COC.
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Affiliation(s)
- Julieta L Rojo
- Centro de Investigaciones Endocrinológicas "Dr. César Bergadá" (CEDIE), CONICET, FEI, División de Endocrinología Hospital de Niños Ricardo Gutiérrez, Gallo 1330, CABA, C1425EFD, Buenos Aires, Argentina
| | - Martina Linari
- Centro de Investigaciones Endocrinológicas "Dr. César Bergadá" (CEDIE), CONICET, FEI, División de Endocrinología Hospital de Niños Ricardo Gutiérrez, Gallo 1330, CABA, C1425EFD, Buenos Aires, Argentina
| | - Kelly A Young
- Department of Biological Sciences, California State University Long Beach, Long Beach, CA, 90840, USA
| | - Marina C Peluffo
- Centro de Investigaciones Endocrinológicas "Dr. César Bergadá" (CEDIE), CONICET, FEI, División de Endocrinología Hospital de Niños Ricardo Gutiérrez, Gallo 1330, CABA, C1425EFD, Buenos Aires, Argentina.
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Shepel EA, Voznesenskaya ТY, Blashkiv TV, Yanchii RI. CUMULUS CELL GENES AS POTENTIAL BIOMARKERS OF OOCYTE AND EMBRYO DEVELOPMENTAL COMPETENCE. ACTA ACUST UNITED AC 2018. [PMID: 29537212 DOI: 10.15407/fz62.01.107] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Bogomoletz Institute of Physiology NASU, Ukraine, Kiev. The selection of embryos with high implantation potential is the most important task in assisted reproductive technology. Today, this selection is based on subjective morphological criteria such as growth rate, early cleavage, the degree of fragmentation, blastocyst formation. However, the morphological assessment alone does not accurately predict oocyte/early stage embryo competence. Thus, the development of an objective, accurate, fast and affordable tests to determine oocyte quality and embryo viability could increase the chance of a successful pregnancy and reduce the number of embryos to transfer. The advent of new technologies, the so-called OMIKS, has allowed to identify novel biomarkers that can be used in cycle of in vitro fertilization (IVF) for oocyte and / or embryo selection. During folliculogenesis oocyte plays a dominant role in regulation of cumulus (CC) and granulosa cell (GC) functions, and it is consequently believed that functions of GC and CC indirectly reflect oocyte’s competence. Cell functions and active cell processes are regulated through gene expression therefore, gene expression analysis in GC and/or CC could provide a non-invasive method for identification of the most competent oocytes and embryos. In cumulus cells, genes have been identified that characterize the oocyte ability to undergo meiotic maturation, successful fertilization and early embryonic development. Among them cyclooxygenase 2, gremlin 1 and hyaluronan synthase-2, which play an important roles during oocyte development, ovulation and fertilization. This article reviews the recent data regarding these genes as potential biomarkers for selection of oocytes and embryos in the IVF program.
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Fathi M, Moawad AR, Badr MR. Production of blastocysts following in vitro maturation and fertilization of dromedary camel oocytes vitrified at the germinal vesicle stage. PLoS One 2018; 13:e0194602. [PMID: 29543888 PMCID: PMC5854426 DOI: 10.1371/journal.pone.0194602] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Accepted: 02/14/2018] [Indexed: 11/19/2022] Open
Abstract
Cryopreservation of oocytes would serve as an alternative to overcome the limited availability of dromedary camel oocytes and facilitate improvements in IVP techniques in this species. Our goal was to develop a protocol for the vitrification of camel oocytes at the germinal vesicle (GV) stage using different cryoprotectant combinations: 20% EG and 20% DMSO (VS1), 25% EG plus 25% DMSO (VS2) or 25% EG and 25% glycerol (VS3) and various cryo-carriers; straws or open pulled-straw (OPS) or solid surface vitrification (SSV); and Cryotop. Viable oocytes were cultured in vitro for 30 h. Matured oocytes were fertilized with epididymal spermatozoa and then cultured in vitro in modified KSOMaa medium for 7 days. Survival and nuclear maturation rates were significantly lower (P ≤ 0.05) in oocytes exposed to VS3 (44.8% and 34.0%, respectively) than those exposed to VS1 (68.2% and 48.0%, respectively) and VS2 (79.3% and 56.9%, respectively). Although recovery rates were significantly lower (P ≤ 0.05) in SSV and Cryotop vitrified oocytes (66.9% to 71.1%) than those vitrified by straws with VS1 or VS2 solutions (86.3% to 91.0%), survival rates were higher in the SSV and Cryotop groups (90.7% to 94.8%) than in the straw and OPS groups (68.2% to 86.5%). Among vitrified groups, maturation and fertilization rates were the highest in the Cryotop-VS2 group (51.8% and 39.2%, respectively). These values were comparable to those seen in the controls (59.2% and 44.6%, respectively). Cleavage (22.5% to 27.9%), morula (13.2% to 14.5%), and blastocyst (6.4% to 8.5%) rates were significantly higher (P ≤ 0.05) in SSV and Cryotop groups than in straws. No significant differences were observed in these parameters between the Cryotop and control groups. We report for the first time that dromedary oocytes vitrified at the GV-stage have the ability to be matured, fertilized and subsequently develop in vitro to produce blastocysts at frequencies comparable to those obtained using fresh oocytes.
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Affiliation(s)
- Mohamed Fathi
- Department of Theriogenology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Adel R. Moawad
- Department of Theriogenology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
- * E-mail:
| | - Magdy R. Badr
- Department of Artificial Insemination and Embryo Transfer, Animal Reproduction Research Institute, Agriculture Research Centre, Giza, Egypt
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Budna J, Rybska M, Ciesiółka S, Bryja A, Borys S, Kranc W, Wojtanowicz-Markiewicz K, Jeseta M, Sumelka E, Bukowska D, Antosik P, Brüssow KP, Bruska M, Nowicki M, Zabel M, Kempisty B. Expression of genes associated with BMP signaling pathway in porcine oocytes before and after IVM - a microarray approach. Reprod Biol Endocrinol 2017; 15:43. [PMID: 28576120 PMCID: PMC5457624 DOI: 10.1186/s12958-017-0261-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2017] [Accepted: 05/26/2017] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND The full maturational capability of mammalian oocytes is accompanied by nuclear and cytoplasmic modifications, which are associated with proliferation and differentiation of surrounding cumulus cells. These events are regulated on molecular level by the expression of target genes involved in signal transduction pathways crucial for folliculogenesis and oogenesis. Transforming growth factor beta signaling includes several molecules that are involved in the regulation of oogenesis and embryo growth, including bone morphogenetic protein (BMP). However, the BMP-related gene expression profile in oocytes at different maturational stages requires further investigation. METHODS Oocytes were isolated from pubertal crossbred Landrace gilts follicles, selected with a use of BCB staining test and analyzed before and after in vitro maturation. Gene expression profiles were examined using an Affymetrix microarray approach and validated by RT-qPCR. Database for Annotation, Visualization, and Integrated Discovery (DAVID) software was used for the extraction of the genes belonging to a BMP-signaling pathway ontology group. RESULTS The assay revealed 12,258 different transcripts in porcine oocytes, among which 379 genes were down-regulated and 40 were up-regulated. The DAVID database indicated a "BMP signaling pathway" ontology group, which was significantly regulated in both groups of oocytes. We discovered five up-regulated genes in oocytes before versus after in vitro maturation (IVM): chordin-like 1 (CHRDL1), follistatin (FST), transforming growth factor-beta receptor-type III (TGFβR3), decapentaplegic homolog 4 (SMAD4), and inhibitor of DNA binding 1 (ID1). CONCLUSIONS Increased expression of CHRDL1, FST, TGFβR3, SMAD4, and ID1 transcripts before IVM suggested a subordinate role of the BMP signaling pathway in porcine oocyte maturational competence. Conversely, it is postulated that these genes are involved in early stages of folliculogenesis and oogenesis regulation in pigs, since in oocytes before IVM increased expression was observed.
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Affiliation(s)
- Joanna Budna
- 0000 0001 2205 0971grid.22254.33Department of Histology and Embryology, Poznan University of Medical Sciences, Swiecickiego 6 St., 60–781 Poznan, Poland
| | - Marta Rybska
- 0000 0001 2157 4669grid.410688.3Institute of Veterinary Sciences, Poznan University of Life Sciences, Wolynska 35 St, 60–637 Poznan, Poland
| | - Sylwia Ciesiółka
- 0000 0001 2205 0971grid.22254.33Department of Histology and Embryology, Poznan University of Medical Sciences, Swiecickiego 6 St., 60–781 Poznan, Poland
| | - Artur Bryja
- 0000 0001 2205 0971grid.22254.33Department of Anatomy, Poznan University of Medical Sciences, Swiecickiego 6 St, 60–781 Poznan, Poland
| | - Sylwia Borys
- 0000 0001 2205 0971grid.22254.33Department of Anatomy, Poznan University of Medical Sciences, Swiecickiego 6 St, 60–781 Poznan, Poland
| | - Wiesława Kranc
- 0000 0001 2205 0971grid.22254.33Department of Anatomy, Poznan University of Medical Sciences, Swiecickiego 6 St, 60–781 Poznan, Poland
| | - Katarzyna Wojtanowicz-Markiewicz
- 0000 0001 2205 0971grid.22254.33Department of Histology and Embryology, Poznan University of Medical Sciences, Swiecickiego 6 St., 60–781 Poznan, Poland
- 0000 0001 2157 4669grid.410688.3Institute of Veterinary Sciences, Poznan University of Life Sciences, Wolynska 35 St, 60–637 Poznan, Poland
| | - Michal Jeseta
- 0000 0004 0609 2751grid.412554.3Department of Obstetrics and Gynecology, University Hospital and Masaryk University, Obilnitrh 11, 602 00 Brno, Czech Republic
| | - Ewa Sumelka
- 0000 0001 2205 0971grid.22254.33Department of Histology and Embryology, Poznan University of Medical Sciences, Swiecickiego 6 St., 60–781 Poznan, Poland
| | - Dorota Bukowska
- 0000 0001 2157 4669grid.410688.3Institute of Veterinary Sciences, Poznan University of Life Sciences, Wolynska 35 St, 60–637 Poznan, Poland
| | - Paweł Antosik
- 0000 0001 2157 4669grid.410688.3Institute of Veterinary Sciences, Poznan University of Life Sciences, Wolynska 35 St, 60–637 Poznan, Poland
| | - Klaus P. Brüssow
- 0000 0001 2205 0971grid.22254.33Department of Anatomy, Poznan University of Medical Sciences, Swiecickiego 6 St, 60–781 Poznan, Poland
| | - Małgorzata Bruska
- 0000 0001 2205 0971grid.22254.33Department of Anatomy, Poznan University of Medical Sciences, Swiecickiego 6 St, 60–781 Poznan, Poland
| | - Michał Nowicki
- 0000 0001 2205 0971grid.22254.33Department of Histology and Embryology, Poznan University of Medical Sciences, Swiecickiego 6 St., 60–781 Poznan, Poland
| | - Maciej Zabel
- 0000 0001 2205 0971grid.22254.33Department of Histology and Embryology, Poznan University of Medical Sciences, Swiecickiego 6 St., 60–781 Poznan, Poland
| | - Bartosz Kempisty
- 0000 0001 2205 0971grid.22254.33Department of Histology and Embryology, Poznan University of Medical Sciences, Swiecickiego 6 St., 60–781 Poznan, Poland
- 0000 0001 2205 0971grid.22254.33Department of Anatomy, Poznan University of Medical Sciences, Swiecickiego 6 St, 60–781 Poznan, Poland
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Zhang Y, Wang H, Liu W, Yang Y, Wang X, Zhang Z, Guo Q, Wang C, Xia G. Natriuretic peptides improve the developmental competence of in vitro cultured porcine oocytes. Reprod Biol Endocrinol 2017; 15:41. [PMID: 28558842 PMCID: PMC5450137 DOI: 10.1186/s12958-017-0258-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Accepted: 05/15/2017] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Natriuretic peptides (NPs), brain and C type NPs (BNP and CNP), were involved in the maintenance of porcine oocyte meiotic arrest. The present study investigated the effects of NPs on developmental competence of immature porcine oocytes with follicles of different sizes. METHODS Follicular fluid NP levels were examined by radioimmunoassay. The developmental competence of porcine oocytes was evaluated by cleavage and blastocyst developmental rates after in vitro fertilization (IVF) or parthenogenetic activation (PA) of cumulus oocyte complexes (COCs), which were recovered from follicle with different sizes. NP levels were examined and classified according to the cleavage potential after IVF with COCs released from these follicles. RESULTS The BNP and CNP concentrations were increased with follicular size in follicular fluid and sustained at the set ranges of 3.0 - 6.0 mm follicles compared to 6.1 - 8.0 mm follicles. The oocytes developed from 3.0 to 6.0 mm follicles demonstrated increased embryo cleavage and blastocyst ratios after IVF, with an increased follicle size (P < 0.05). Moreover, BNP and CNP significantly promoted the blastocyst developmental rates of 3.0 - 6.0 mm follicles, but could not improve the developmental competence of oocytes from 6.1 to 8.0 mm follicles due to low NP levels. The COCs from 3.0 to 4.0 mm follicles were pre-incubated in 100 ng/ml of BNP and CNP media for 20 h before regular in vitro maturation, which demonstrated 2 to 3 folds higher developmental competencies in both PA and IVF groups compared to respective controls (P < 0.01). CONCLUSIONS The effects of BNP and CNP supplementation in the pre-maturation culture media (PMC) on porcine developmental competence from COCs in follicles of different sizes were different and improved the developmental competence of porcine oocytes from small antral follicle in vitro.
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Affiliation(s)
- Yanhao Zhang
- 0000 0004 0530 8290grid.22935.3fState Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, 100193 People’s Republic of China
| | - Huarong Wang
- 0000 0004 0530 8290grid.22935.3fState Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, 100193 People’s Republic of China
| | - Wei Liu
- 0000 0004 0530 8290grid.22935.3fState Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, 100193 People’s Republic of China
| | - Ye Yang
- 0000 0004 0530 8290grid.22935.3fState Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, 100193 People’s Republic of China
| | - Xiao Wang
- 0000 0004 0530 8290grid.22935.3fState Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, 100193 People’s Republic of China
| | - Zhiyuan Zhang
- 0000 0004 0530 8290grid.22935.3fState Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, 100193 People’s Republic of China
| | - Qirui Guo
- 0000 0004 0530 8290grid.22935.3fState Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, 100193 People’s Republic of China
| | - Chao Wang
- 0000 0004 0530 8290grid.22935.3fState Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, 100193 People’s Republic of China
| | - Guoliang Xia
- 0000 0004 0530 8290grid.22935.3fState Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, 100193 People’s Republic of China
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Richard S, Baltz JM. Preovulatory suppression of mouse oocyte cell volume-regulatory mechanisms is via signalling that is distinct from meiotic arrest. Sci Rep 2017; 7:702. [PMID: 28386066 PMCID: PMC5429605 DOI: 10.1038/s41598-017-00771-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Accepted: 03/09/2017] [Indexed: 12/02/2022] Open
Abstract
GLYT1-mediated glycine transport is the main cell volume-homeostatic mechanism in mouse eggs and early preimplantation embryos. It is unique to these developmental stages and key to their healthy development. GLYT1 first becomes activated in oocytes only after ovulation is triggered, when meiotic arrest of the oocyte is released, but how this occurs was unknown. Here we show that GLYT1 activity is suppressed in oocytes in the preovulatory antral follicle and that its suppression is mediated by a mechanism distinct from the gap junction-dependent Natriuretic Peptide Precursor C (NPPC) pathway that controls meiotic arrest. GLYT1 remained suppressed in isolated antral follicles but not isolated cumulus-oocyte complexes (COCs) or isolated oocytes. Moreover, activating the NPPC signalling pathway could not prevent GLYT1 activation in oocytes within COCs despite maintaining meiotic arrest. Furthermore, blocking gap junctions in isolated follicles failed to induce GLYT1 activity in enclosed oocytes for an extended period after meiosis had resumed. Finally, isolated mural granulosa cells from preovulatory antral follicles were sufficient to suppress GLYT1 in oocytes within co-cultured COCs. Together, these results suggest that suppression of GLYT1 activity before ovulation is mediated by a novel signalling pathway likely originating from preovulatory mural granulosa cells.
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Affiliation(s)
- Samantha Richard
- Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
- Department of Obstetrics and Gynecology and Department of Cellular and Molecular Medicine, University of Ottawa Faculty of Medicine, Ottawa, Ontario, Canada
| | - Jay M Baltz
- Ottawa Hospital Research Institute, Ottawa, Ontario, Canada.
- Department of Obstetrics and Gynecology and Department of Cellular and Molecular Medicine, University of Ottawa Faculty of Medicine, Ottawa, Ontario, Canada.
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Ge H, Zhang F, Duan P, Zhu N, Zhang J, Ye F, Shan D, Chen H, Lu X, Zhu C, Ge R, Lin Z. Mitochondrial Uncoupling Protein 2 in human cumulus cells is associated with regulating autophagy and apoptosis, maintaining gap junction integrity and progesterone synthesis. Mol Cell Endocrinol 2017; 443:128-137. [PMID: 28089824 DOI: 10.1016/j.mce.2017.01.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2016] [Revised: 01/11/2017] [Accepted: 01/12/2017] [Indexed: 01/24/2023]
Abstract
To explore the roles of mitochondrial Uncoupling Protein 2 (UCP2) in cumulus cells (CCs), human CCs were cultured in vitro, and the UCP2 was inhibited by treatment with Genipin, a special UCP inhibitor, or by RNA interference targeting UCP2. No significant differences in adenosine triphosphate levels and the ratio of ADP/ATP were observed after UCP2 inhibition. UCP2 inhibition caused a significant increase in cellular oxidative damage, which was reflected in alterations to several key parameters, including reactive oxygen species (ROS) and lipid peroxidation levels and the ratio of reduced GSH to GSSG. UCP2 blocking resulted in an obvious increase in active Caspase-3, accompanied by the decline of proactive Caspase-3 and a significant increase in the LC3-II/LC3-I ratio, suggesting that UCP2 inhibition triggered cellular apoptosis and autophagy. The mRNA and protein expression of connexin 43 (Cx43), a gap junction channel protein, were significantly reduced after treatment with Genipin or siRNA. The progesterone level in the culture medium was also significantly decreased after UCP2 inhibition. Our data indicated that UCP2 plays highly important roles in mediating ROS production and regulating apoptosis and autophagy, as well as maintaining gap junction integrity and progesterone synthesis, which suggests that UCP2 is involved in the regulation of follicle development and early embryo implantation and implies that it might serve as a potential biomarker for oocyte quality and competency.
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Affiliation(s)
- Hongshan Ge
- Center for Reproductive Medicine, Department of Obstetrics and Gynaecology, Taizhou People's Hospital, The Fifth Hospital Affiliated Nantong University, Taizhou, Jiangsu Province, 225300, People's Republic of China; The Second Affiliated Hospital and YuYing Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, 325000, People's Republic of China.
| | - Fan Zhang
- The Second Affiliated Hospital and YuYing Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, 325000, People's Republic of China
| | - Ping Duan
- The Second Affiliated Hospital and YuYing Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, 325000, People's Republic of China
| | - Nan Zhu
- The Second Affiliated Hospital and YuYing Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, 325000, People's Republic of China
| | - Jiayan Zhang
- The Second Affiliated Hospital and YuYing Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, 325000, People's Republic of China
| | - Feijun Ye
- Maternal and Child Health Hospital, Zhoushan Hospital Affiliated Wenzhou Medical University, Zhejiang Province, 316100, People's Republic of China
| | - Dan Shan
- The Second Affiliated Hospital and YuYing Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, 325000, People's Republic of China
| | - Hua Chen
- The Second Affiliated Hospital and YuYing Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, 325000, People's Republic of China
| | - XiaoSheng Lu
- The Second Affiliated Hospital and YuYing Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, 325000, People's Republic of China
| | - ChunFang Zhu
- The Second Affiliated Hospital and YuYing Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, 325000, People's Republic of China
| | - Renshan Ge
- The Second Affiliated Hospital and YuYing Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, 325000, People's Republic of China
| | - Zhenkun Lin
- The Second Affiliated Hospital and YuYing Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, 325000, People's Republic of China.
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Fisch J, Oliveira IVD, Fank J, Paim LMG, Zandoná MR, Lopes EF, Mello FBD, Oliveira ATDD. Effects of environmental enrichment on reproductive performance and quantity and morphology of cumulus-oocyte complexes obtained from Rattus norvegicus. Theriogenology 2017; 94:114-119. [PMID: 28407853 DOI: 10.1016/j.theriogenology.2017.02.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Revised: 02/14/2017] [Accepted: 02/19/2017] [Indexed: 01/24/2023]
Abstract
Several researchers have observed that environmental enrichment (EE) can be effective in reducing stressful conditions and abnormal behavior and may provide better reproductive performance in rodents. In this context, this study aimed to evaluate the reproductive performance of Wistar rats reared in three different housing conditions. Animals were separated into breeding pairs, one pair per cage and pairs randomly assigned to three experimental groups (ten couples per group): control group were provided cages without any environmental enrichment; PVC group with PVC pipe; and cardboard roll group with a commercially available cardboard tube. To compare the reproductive performance of the three groups, the following were evaluated: number of pups/litter; number of litters; parturition interval; occurrence of cannibalism; weight gain of offspring; as well as the quantity and quality of cumulus-oocyte complexes (COCs) obtained after superovulation of the females born from the first, second and last pregnancy in all groups. Moreover, the plasma level of corticosterone in breeding animals was measured. A total of 60 male rats randomly selected from the first- and last-born litters (20 males from each group) were first tested in an elevated plus-maze (EPM) and on the following day, were tested in an open field test (OFT). Significant differences were found in the number and morphological classification of COCs. In the control group, the number of oocytes in grade 4 (unusual shapes and very heterogeneous ooplasm, presenting no layers of surrounding cumulus cells [13]) presented statistically higher rates (225/2535, 8.9%) compared to the other groups, as well as the number of competent oocytes was higher in the enriched groups (p = 0.001). Moreover, we find that the males of cardboard roll group differed significantly in weight gain compared to PVC group (p = 0.008). In addition to this, we did not detect occurrence of cannibalism in this group. Our findings suggest that environmental enrichment provides improvements in reproductive performance of Wistar rats.
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Affiliation(s)
- Joana Fisch
- PPG - Ciências da Saúde, Universidade Federal de Ciências da Saúde de Porto Alegre -UFCSPA, Porto Alegre, RS, Brazil; Laboratório de Biotecnologia Animal Aplicada, Universidade Federal do Rio Grande do Sul-UFRGS, Porto Alegre, RS, Brazil.
| | - Iáskara Vieira de Oliveira
- PPG - Ciências da Saúde, Universidade Federal de Ciências da Saúde de Porto Alegre -UFCSPA, Porto Alegre, RS, Brazil; Laboratório de Biotecnologia Animal Aplicada, Universidade Federal do Rio Grande do Sul-UFRGS, Porto Alegre, RS, Brazil.
| | - Juliana Fank
- Laboratório de Biotecnologia Animal Aplicada, Universidade Federal do Rio Grande do Sul-UFRGS, Porto Alegre, RS, Brazil.
| | - Lia Mara Gomes Paim
- Laboratório de Biotecnologia Animal Aplicada, Universidade Federal do Rio Grande do Sul-UFRGS, Porto Alegre, RS, Brazil.
| | - Marília Remuzzi Zandoná
- PPG - Ciências da Saúde, Universidade Federal de Ciências da Saúde de Porto Alegre -UFCSPA, Porto Alegre, RS, Brazil.
| | - Eliana Franco Lopes
- Laboratório de Biotecnologia Animal Aplicada, Universidade Federal do Rio Grande do Sul-UFRGS, Porto Alegre, RS, Brazil.
| | - Fernanda Bastos de Mello
- PPG - Ciências da Saúde, Universidade Federal de Ciências da Saúde de Porto Alegre -UFCSPA, Porto Alegre, RS, Brazil.
| | - Alexandre Tavares Duarte de Oliveira
- PPG - Ciências da Saúde, Universidade Federal de Ciências da Saúde de Porto Alegre -UFCSPA, Porto Alegre, RS, Brazil; Laboratório de Biotecnologia Animal Aplicada, Universidade Federal do Rio Grande do Sul-UFRGS, Porto Alegre, RS, Brazil.
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Chen H, Liu C, Jiang H, Gao Y, Xu M, Wang J, Liu S, Fu Y, Sun X, Xu J, Zhang J, Dai L. Regulatory Role of miRNA-375 in Expression of BMP15/GDF9 Receptors and its Effect on Proliferation and Apoptosis of Bovine Cumulus Cells. Cell Physiol Biochem 2017; 41:439-450. [PMID: 28214889 DOI: 10.1159/000456597] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Accepted: 12/05/2016] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Bone morphogenetic protein 15 (BMP15) and growth differentiation factor 9 (GDF9) are members of the transforming growth factor beta (TGF-β) superfamily. Through autocrine and paracrine mechanisms, these two factors can regulate cell differentiation, proliferation, and other functions in the ovary locally. Furthermore, GDF9 and BMP15 play vital roles in follicular growth, atresia, ovulation, fertilization, reproduction, and maintenance. Numerous studies have demonstrated a synergy between BMP15 and GDF9. Studies in humans and mice have indicated that the synergy between BMP15 and GDF9 is primarily mediated by the bone morphogenetic protein type II receptor (BMPR2). The BMP15/GDF9 heterodimer needs to bind to the BMPR2-ALK4/5/7-ALK6 receptor complex to activate the SMAD2/3 signaling pathway. However, it is not clear which genes mediate and regulate the effects of the BMP15/GDF9 proteins on bovine cumulus cells (CCs). METHODS Our earlier study showed that BMPR2 is a gene that is directly targeted and regulated by miR-375. Therefore, we designed and synthesized an miR-375 mimics/inhibitor and regulated BMPR2 expression in bovine CCs by the overexpression or inhibition of miR-375. After the overexpression or inhibition of miR-375, the apoptosis rate of bovine CCs was measured by flow cytometry; changes in critical gene expression were measured by RT-qPCR and western blot assays; and the proliferation of bovine CCs was measured by CCK-8 assay. RESULTS In bovine CCs, the overexpression of miR-375 resulted in decreased BMPR2 and ALK7 expression, whereas the inhibition of miR-375 caused increased BMPR2 and ALK7 expression. The overexpression of miR-375 attenuated the proliferation ability and significantly increased the apoptosis rate of bovine CCs, whereas the inhibition of miR-375 did not significantly change the proliferation ability or apoptosis rate. CONCLUSIONS BMPR2, a target of miR-375, is regulated by this molecule, thereby affecting expression of BMP15/GDF9 receptors, and the proliferation and apoptosis of bovine CCs.
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Sun MH, Yang M, Xie FY, Wang W, Zhang L, Shen W, Yin S, Ma JY. DNA Double-Strand Breaks Induce the Nuclear Actin Filaments Formation in Cumulus-Enclosed Oocytes but Not in Denuded Oocytes. PLoS One 2017; 12:e0170308. [PMID: 28099474 PMCID: PMC5242499 DOI: 10.1371/journal.pone.0170308] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Accepted: 01/02/2017] [Indexed: 01/21/2023] Open
Abstract
As a gamete, oocyte needs to maintain its genomic integrity and passes this haploid genome to the next generation. However, fully-grown mouse oocyte cannot respond to DNA double-strand breaks (DSBs) effectively and it is also unable to repair them before the meiosis resumption. To compensate for this disadvantage and control the DNA repair events, oocyte needs the cooperation with its surrounding cumulus cells. Recently, evidences have shown that nuclear actin filament formation plays roles in cellular DNA DSB repair. To explore whether these nuclear actin filaments are formed in the DNA-damaged oocytes, here, we labeled the filament actins in denuded oocytes (DOs) and cumulus-enclosed oocytes (CEOs). We observed that the nuclear actin filaments were formed only in the DNA-damaged CEOs, but not in DOs. Formation of actin filaments in the nucleus was an event downstream to the DNA damage response. Our data also showed that the removal of cumulus cells led to a reduction in the nuclear actin filaments in oocytes. Knocking down of the Adcy1 gene in cumulus cells did not affect the formation of nuclear actin filaments in oocytes. Notably, we also observed that the nuclear actin filaments in CEOs could be induced by inhibition of gap junctions. From our results, it was confirmed that DNA DSBs induce the nuclear actin filament formation in oocyte and which is controlled by the cumulus cells.
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Affiliation(s)
- Ming-Hong Sun
- College of Animal Science and Technology, Key Laboratory of Animal Reproduction and Germplasm Enhancement in Universities of Shandong, Qingdao Agricultural University, Qingdao, China
| | - Mo Yang
- Center of Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China
| | - Feng-Yun Xie
- College of Animal Science and Technology, Key Laboratory of Animal Reproduction and Germplasm Enhancement in Universities of Shandong, Qingdao Agricultural University, Qingdao, China
| | - Wei Wang
- College of Animal Science and Technology, Key Laboratory of Animal Reproduction and Germplasm Enhancement in Universities of Shandong, Qingdao Agricultural University, Qingdao, China
| | - Lili Zhang
- College of Animal Science and Technology, Key Laboratory of Animal Reproduction and Germplasm Enhancement in Universities of Shandong, Qingdao Agricultural University, Qingdao, China
| | - Wei Shen
- College of Animal Science and Technology, Key Laboratory of Animal Reproduction and Germplasm Enhancement in Universities of Shandong, Qingdao Agricultural University, Qingdao, China
- Institute of Reproductive Science, Qingdao Agricultural University, Qingdao, China
| | - Shen Yin
- College of Animal Science and Technology, Key Laboratory of Animal Reproduction and Germplasm Enhancement in Universities of Shandong, Qingdao Agricultural University, Qingdao, China
- Institute of Reproductive Science, Qingdao Agricultural University, Qingdao, China
| | - Jun-Yu Ma
- College of Animal Science and Technology, Key Laboratory of Animal Reproduction and Germplasm Enhancement in Universities of Shandong, Qingdao Agricultural University, Qingdao, China
- Institute of Reproductive Science, Qingdao Agricultural University, Qingdao, China
- * E-mail:
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Li X, Wang H, Sheng Y, Wang Z. MicroRNA-224 delays oocyte maturation through targeting Ptx3 in cumulus cells. Mech Dev 2016; 143:20-25. [PMID: 28039065 DOI: 10.1016/j.mod.2016.12.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Revised: 12/19/2016] [Accepted: 12/26/2016] [Indexed: 01/15/2023]
Abstract
MicroRNAs (miRNAs) have been improved to regulate oocyte development in a cell- or stage-specific manner. In this study, we aimed to clarify microRNA-224's (miR-224) role in cumulus cells (CCs), to find out whether a change level of miR-224 in CCs could influence the maturation of oocyte. We found that overexpression of miR-224 of CCs led to the impairment of cell expansion, along with a decrease in the gene expression associated with cell expansion and maturation of oocyte. The increased expression of miR-224 in CC interrupted oocyte cell cycle at the GV stage. The GDF9, BMP15 and ZP3 of the oocytes were also down-regulated. The following in vitro fertilization had yielded a lower number of oocytes from cumulus-oocyte complexes (COCs) overexpressing miR-224 when reaching the blastocyst stage. The suppressive effect of miR-224 in the maturation of COC is validated by the miR-224 knockdown model, where the expansion of cumulus cell was increased and oocyte was developed to MII stage. In addition, the expression of aromatase in CCs was down-regulated by miR-224, resulting in a decreased level of estradiol (E2). A further investigation found that miR-224 down-regulated the expression of protein and mRNA of Ptx3 by targeting its 3'UTR. Our study revealed that miR-224 regulates the gene expression and function of CCs, which influences the maturation of oocyte, at least in part, via targeting Ptx3.
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Affiliation(s)
- Xiufang Li
- Center for Reproductive Medicine, Shandong University, Jinan 250001, China; National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan 250001, China; The Key Laboratory for Reproductive Endocrinology of Ministry of Education, Jinan 250001, China
| | - Huidan Wang
- Center for Reproductive Medicine, Shandong University, Jinan 250001, China; National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan 250001, China; The Key Laboratory for Reproductive Endocrinology of Ministry of Education, Jinan 250001, China
| | - Yan Sheng
- Center for Reproductive Medicine, Shandong University, Jinan 250001, China; National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan 250001, China; The Key Laboratory for Reproductive Endocrinology of Ministry of Education, Jinan 250001, China
| | - Zhongqing Wang
- Department of Traditional Chinese Medicine, Provincial Hospital Affiliated to Shandong University, Jinan 250022, China.
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Yuan B, Liang S, Kwon JW, Jin YX, Park SH, Wang HY, Sun TY, Zhang JB, Kim NH. The Role of Glucose Metabolism on Porcine Oocyte Cytoplasmic Maturation and Its Possible Mechanisms. PLoS One 2016; 11:e0168329. [PMID: 27997591 PMCID: PMC5173360 DOI: 10.1371/journal.pone.0168329] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Accepted: 11/30/2016] [Indexed: 12/30/2022] Open
Abstract
In the present study, we investigated the potential role of glucose and pyruvate in the cytoplasmic maturation of porcine oocytes by investigating the effect of glucose and/or pyruvate supplementation, in the presence or absence of 10% porcine follicular fluid (PFF), on meiotic maturation and subsequent embryo development. In the absence of 10% PFF, without exogenous addition of glucose and pyruvate, the medium seemed unable to support maturation. In the presence of 10% PFF, the addition of 5.6 mM glucose and/or 2 mM pyruvate during in vitro maturation of cumulus enclosed oocytes increased MII oocyte and blastocyst rates. In contrast, oocytes denuded of cumulus cells were not able to take full advantage of the glucose in the medium, as only pyruvate was able to increase the MII rate and the subsequent early embryo developmental ability. Treatment of cumulus enclosed oocytes undergoing maturation with 200 μM dehydroepiandrosterone (DHEA), a pentose phosphate pathway inhibitor, or 2 μM iodoacetate (IA), a glycolysis inhibitor, significantly reduced GHS, intra-oocyte ATP, maternal gene expression, and MPF activity levels. DHEA was also able to increase ROS and reduce the levels of NADPH. Moreover, blastocysts of the DHEA- or IA-treated groups presented higher apoptosis rates and markedly lower cell proliferation cell rates than those of the non-treated group. In conclusion, our results suggest that oocytes maturing in the presence of 10% PFF can make full use of energy sources through glucose metabolism only when they are accompanied by cumulus cells, and that pentose phosphate pathway (PPP) and glycolysis promote porcine oocyte cytoplasmic maturation by supplying energy, regulating maternal gene expression, and controlling MPF activity.
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Affiliation(s)
- Bao Yuan
- Department of Laboratory Animals, College of Animal Sciences, Jilin University, Changchun, Jilin, China
- Molecular Embryology Laboratory, Department of Animal Sciences, Chungbuk National University, Cheongju, Chungbuk, South Korea
| | - Shuang Liang
- Molecular Embryology Laboratory, Department of Animal Sciences, Chungbuk National University, Cheongju, Chungbuk, South Korea
| | - Jeong-Woo Kwon
- Molecular Embryology Laboratory, Department of Animal Sciences, Chungbuk National University, Cheongju, Chungbuk, South Korea
| | - Yong-Xun Jin
- Department of Laboratory Animals, College of Animal Sciences, Jilin University, Changchun, Jilin, China
- Molecular Embryology Laboratory, Department of Animal Sciences, Chungbuk National University, Cheongju, Chungbuk, South Korea
| | - Shun-Ha Park
- Molecular Embryology Laboratory, Department of Animal Sciences, Chungbuk National University, Cheongju, Chungbuk, South Korea
| | - Hai-Yang Wang
- Molecular Embryology Laboratory, Department of Animal Sciences, Chungbuk National University, Cheongju, Chungbuk, South Korea
| | - Tian-Yi Sun
- Molecular Embryology Laboratory, Department of Animal Sciences, Chungbuk National University, Cheongju, Chungbuk, South Korea
| | - Jia-Bao Zhang
- Department of Laboratory Animals, College of Animal Sciences, Jilin University, Changchun, Jilin, China
- * E-mail: (NHK); (JBZ)
| | - Nam-Hyung Kim
- Department of Laboratory Animals, College of Animal Sciences, Jilin University, Changchun, Jilin, China
- Molecular Embryology Laboratory, Department of Animal Sciences, Chungbuk National University, Cheongju, Chungbuk, South Korea
- * E-mail: (NHK); (JBZ)
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Chang WF, Hwu YM, Xu J, Lin CJ, Wang SW, Cheng AS, Lu J, Lu CH, Sung LY. Derivation of Patient Specific Pluripotent Stem Cells Using Clinically Discarded Cumulus Cells. PLoS One 2016; 11:e0165715. [PMID: 27802323 PMCID: PMC5089679 DOI: 10.1371/journal.pone.0165715] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Accepted: 10/17/2016] [Indexed: 11/18/2022] Open
Abstract
Induced pluripotent stem cells (iPSCs) are powerful tools for basic and translational research, as well as regenerative medicine. In routine human in vitro fertilization (IVF) practices, cumulus cells (CCs) are discarded, representing a potential source of biological materials for regenerative medicine. In this study, we derived patient-specific iPSCs using CCs from human infertility clinics for the first time. The human cumulus cell derived iPSCs (hc-iPSCs) were characterized for growth, karyotype, expression of pluripotency genes, and were subjected to embryoid bodies (EBs) and teratoma assays to evaluate their differentiation capacity. Hc-iPSCs display typical iPSC characteristics, and are capable of differentiating into all germ layers in vitro and in vivo. We further show that putative primordial germ cell like cells (PGCLCs) can be derived using hc-iPSCs. Our data demonstrate the feasibility of deriving patient-specific pluripotent stem cells using CCs.
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Affiliation(s)
- Wei-Fang Chang
- Institute of Biotechnology, National Taiwan University, Taipei, Taiwan
| | - Yuh-Ming Hwu
- Department of Obstetrics and Gynecology, Mackay Memorial Hospital, Taipei, Taiwan
- Department of Obstetrics and Gynecology, Mackay Medical College, New Taipei City, Taiwan
- Department of Obstetrics and Gynecology, Mackay Junior College of Medicine, Nursing, and Management, Taipei, Taiwan
| | - Jie Xu
- Center for Advanced Models for Translational Sciences and Therapeutics, University of Michigan Medical Center, Ann Arbor, Michigan, United States of America
| | - Chen-Ju Lin
- Department of Obstetrics and Gynecology, Mackay Memorial Hospital, Taipei, Taiwan
- Department of Obstetrics and Gynecology, Mackay Medical College, New Taipei City, Taiwan
| | - Sheng-Wen Wang
- Institute of Biotechnology, National Taiwan University, Taipei, Taiwan
| | - An-Sheng Cheng
- Yupintang Traditional Chinese Medicine Foundation, Kaohsiung, Taiwan
| | - Jean Lu
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Chung-Hao Lu
- Department of Obstetrics and Gynecology, Mackay Memorial Hospital, Taipei, Taiwan
- * E-mail: (LYS); (CHL)
| | - Li-Ying Sung
- Institute of Biotechnology, National Taiwan University, Taipei, Taiwan
- Center for Biotechnology, National Taiwan University, Taipei, Taiwan
- Animal Resource Center, National Taiwan University, Taipei, Taiwan
- Agricultural Biotechnology Research Center, Academia Sinica, Taipei, Taiwan
- * E-mail: (LYS); (CHL)
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Abstract
Although the requirement of pituitary-derived LH for ovulation is well documented, the intrafollicular paracrine and autocrine processes elicited by LH necessary for follicle rupture are not fully understood. Evaluating a published rhesus macaque periovulatory transcriptome database revealed that mRNA encoding leukemia inhibitory factor (LIF) and its downstream signaling effectors are up-regulated in the follicle after animals receive an ovulatory stimulus (human chorionic gonadotropin [hCG]). Follicular LIF mRNA and protein levels are below the limit of detection before the administration of hCG but increase significantly 12 hours thereafter. Downstream LIF receptor (LIFR) signaling components including IL-6 signal transducer, the receptor associated Janus kinase 1, and the transcription factor signal transducer and activator of transcription 3 also exhibit increased expression in the rhesus macaque follicle 12 hours after administration of an ovulatory hCG bolus. A laparoscopic ovarian evaluation 72 hours after the injection of a LIF antagonist (soluble LIFR) into the rhesus macaque preovulatory follicle and hCG administration revealed blocking LIF action prevented ovulation (typically occurs 36-44 h after hCG). Moreover, ovaries removed 52 hours after both hCG and intrafollicular soluble LIFR administration confirmed ovulation was blocked as evidenced by the presence of an intact follicle and a trapped cumulus-oocyte complex. These findings give new insight into the role of LIF in the primate ovary and could lead to the development of new approaches for the control of fertility.
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Affiliation(s)
- Melinda J Murphy
- Division of Reproductive and Developmental Sciences (M.J.M., N.G.H., P.A.R., J.D.H.), Oregon National Primate Research Center, Oregon Health and Science University, Beaverton, Oregon 97006; and Department of Obstetrics and Gynecology (P.A.R., J.D.H.), Oregon Health and Science University, Portland, Oregon 97239
| | - Nathan G Halow
- Division of Reproductive and Developmental Sciences (M.J.M., N.G.H., P.A.R., J.D.H.), Oregon National Primate Research Center, Oregon Health and Science University, Beaverton, Oregon 97006; and Department of Obstetrics and Gynecology (P.A.R., J.D.H.), Oregon Health and Science University, Portland, Oregon 97239
| | - Pamela A Royer
- Division of Reproductive and Developmental Sciences (M.J.M., N.G.H., P.A.R., J.D.H.), Oregon National Primate Research Center, Oregon Health and Science University, Beaverton, Oregon 97006; and Department of Obstetrics and Gynecology (P.A.R., J.D.H.), Oregon Health and Science University, Portland, Oregon 97239
| | - Jon D Hennebold
- Division of Reproductive and Developmental Sciences (M.J.M., N.G.H., P.A.R., J.D.H.), Oregon National Primate Research Center, Oregon Health and Science University, Beaverton, Oregon 97006; and Department of Obstetrics and Gynecology (P.A.R., J.D.H.), Oregon Health and Science University, Portland, Oregon 97239
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42
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Ciesiółka S, Budna J, Bryja A, Kranc W, Chachuła A, Dyszkiewicz-Konwińska M, Piotrowska H, Bukowska D, Antosik P, Bruska M, Brüssow KP, Nowicki M, Zabel M, Kempisty B. Association between expression of cumulus expansion markers and real-time proliferation of porcine follicular granulosa cells in a primary cell culture model. J BIOL REG HOMEOS AG 2016; 30:971-984. [PMID: 28078843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Folliculogenesis is a compound process that involves both ovarian follicle growth and oocyte development, which is tightly attached to the follicular wall. During this process, cells that form the follicle structure undergo substantial morphological and molecular modifications that finally lead to differentiation and specialization of ovarian follicular cells. The differentiation of ovarian cells encompasses formation of follicle, which is composed of theca (TCs), mural granulosa (GCs), and cumulus cells (CCs). It was previously hypothesized that GCs and CCs represent undifferentiated and highly specialized follicular cells, respectively, which may have similar primordial cell origins. In this study, we investigated the expression pattern of cumulus expansion markers such as COX2, HAS2, PTX3, and TSG6 in porcine GCs during short-term, in vitro culture. We hypothesized that these genes may display an important function in GCs in relation to cellular real-time proliferation. The expression pattern of COX2, HAS2, PTX3, and TSG6 was evaluated after using RT-qPCR in relation to confocal microscopy observations of protein expression and distribution during real-time proliferation of porcine follicular GCs. The COX2 and HAS2 mRNAs were highly expressed after 120 h of in vitro culture (IVC), whereas PTX3 and TSG6 mRNAs were increased during the first 24-48 h of IVC (P less than 0.001, P less than 0.01). Conversely, all of the encoded proteins were highly expressed after 144-168 h of IVC as compared to other culture periods (P less than 0.001, P less than 0.01). When analyzing the realtime proliferation of GCs in vitro, we observed a logarithmic increase of cell proliferation between 0 h and 120 h of IVC. However, after 120-168 h of IVC, the cells reached the lag phase of proliferation. Since it is well accepted that porcine GCs undergo luteinization shortly after 24-48 h of IVC, the expression pattern of investigated genes indicated that Cox2 and Has2 are independent from the LH surge, but their increased levels may be upregulated by cell proliferation in vitro. Moreover, higher expression of PTX3 and TSG6 during first 24 h and/or 48 h of IVC suggested that their levels are accompanied by porcine GCs luteinization process.
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Affiliation(s)
- S Ciesiółka
- Department of Histology and Embryology, Poznan University of Medical Sciences, Poznan, Poland
| | - J Budna
- Department of Histology and Embryology, Poznan University of Medical Sciences, Poznan, Poland
| | - A Bryja
- Department of Anatomy, Poznan University of Medical Sciences, Poznan, Poland
| | - W Kranc
- Department of Anatomy, Poznan University of Medical Sciences, Poznan, Poland
| | - A Chachuła
- Department of Histology and Embryology, Poznan University of Medical Sciences, Poznan, Poland
| | - M Dyszkiewicz-Konwińska
- Department of Biomaterials and Experimental Dentistry, Poznan University of Medical Sciences, Poznan, Poland
| | - H Piotrowska
- Department of Toxicology, Poznan University of Medical Sciences, Poznan, Poland
| | - D Bukowska
- Institute of Veterinary Sciences, Poznan University of Life Sciences, Poznan, Poland
| | - P Antosik
- Institute of Veterinary Sciences, Poznan University of Life Sciences, Poznan, Poland
| | - M Bruska
- Department of Anatomy, Poznan University of Medical Sciences, Poznan, Poland
| | - K P Brüssow
- Institute of Veterinary Sciences, Poznan University of Life Sciences, Poznan, Poland
| | - M Nowicki
- Department of Histology and Embryology, Poznan University of Medical Sciences, Poznan, Poland
| | - M Zabel
- Department of Histology and Embryology, Poznan University of Medical Sciences, Poznan, Poland
- Department of Histology and Embryology, Wroclaw Medical University, Poland
| | - B Kempisty
- Department of Histology and Embryology, Poznan University of Medical Sciences, Poznan, Poland
- Department of Anatomy, Poznan University of Medical Sciences, Poznan, Poland
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Chachuła A, Kranc W, Budna J, Bryja A, Ciesiólka S, Wojtanowicz-Markiewicz K, Piotrowska H, Bukowska D, Krajecki M, Antosik P, Brüssow KP, Bruska M, Nowicki M, Zabel M, Kempisty B. The differentiation of mammalian ovarian granulosa cells living in the shadow of cellular developmental capacity. J BIOL REG HOMEOS AG 2016; 30:627-634. [PMID: 27655478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The mammalian cumulus-oocyte complex (COCs) promotes oocyte growth and development during long stages of folliculogenesis and oogenesis. Before ovulation, the follicle is formed by a variety of fully differentiated cell populations; cumulus cells (CCs) that tightly surround the female gamete, granulosa cells (GCs) and theca cells (TCs) which build the internal and external mass of the follicular wall. It is well documented that CCs surrounding the oocyte are necessary for resumption of meiosis and full maturation of the gamete. However, the role of the granulosa cells in acquisition of MII stage and/or full fertilization ability is not yet entirely known. In this article, we present an overview of mammalian oocytes and their relationship to the surrounding cumulus and granulosa cells. We also describe the processes of GCs differentiation and developmental capacity. Finally, we describe several markers of mammalian GCs, which could be used for positive identification of isolated cells. The developmental capacity of oocytes and surrounding somatic cells a fingerprint of folliculogenesis and oogenesis.
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Affiliation(s)
- A Chachuła
- Department of Histology and Embryology, Poznan University of Medical Sciences, Poznan, Poland
| | - W Kranc
- Department of Anatomy, Poznan University of Medical Sciences, Poznan, Poland
| | - J Budna
- Department of Histology and Embryology, Poznan University of Medical Sciences, Poznan, Poland
| | - A Bryja
- Department of Anatomy, Poznan University of Medical Sciences, Poznan, Poland
| | - S Ciesiólka
- Department of Histology and Embryology, Poznan University of Medical Sciences, Poznan, Poland
| | - K Wojtanowicz-Markiewicz
- Department of Histology and Embryology, Poznan University of Medical Sciences, Poznan, Poland; Institute of Veterinary Sciences, Poznan University of Life Sciences, Poznan, Poland
| | - H Piotrowska
- Department of Toxicology, Poznan University of Medical Sciences, Poznan, Poland
| | - D Bukowska
- Institute of Veterinary Sciences, Poznan University of Life Sciences, Poznan, Poland
| | - M Krajecki
- Department of Anatomy, Poznan University of Medical Sciences, Poznan, Poland
| | - P Antosik
- Institute of Veterinary Sciences, Poznan University of Life Sciences, Poznan, Poland
| | - K P Brüssow
- Institute of Veterinary Sciences, Poznan University of Life Sciences, Poznan, Poland
| | - M Bruska
- Department of Anatomy, Poznan University of Medical Sciences, Poznan, Poland
| | - M Nowicki
- Department of Histology and Embryology, Poznan University of Medical Sciences, Poznan, Poland
| | - M Zabel
- Department of Histology and Embryology, Poznan University of Medical Sciences, Poznan, Poland; Department of Histology and Embryology, Wroclaw Medical University, Wroclaw, Poland
| | - B Kempisty
- Department of Histology and Embryology, Poznan University of Medical Sciences, Poznan, Poland; Department of Anatomy, Poznan University of Medical Sciences, Poznan, Poland
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Dau AMP, da Silva EP, da Rosa PRA, Bastiani FT, Gutierrez K, Ilha GF, Comim FV, Gonçalves PBD. Bovine ovarian cells have (pro)renin receptors and prorenin induces resumption of meiosis in vitro. Peptides 2016; 81:1-8. [PMID: 27060674 DOI: 10.1016/j.peptides.2016.03.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Revised: 03/14/2016] [Accepted: 03/23/2016] [Indexed: 01/02/2023]
Abstract
The discovery of a receptor that binds prorenin and renin in human endothelial and mesangial cells highlights the possible effect of renin-independent prorenin in the resumption of meiosis in oocytes that was postulated in the 1980s.This study aimed to identify the (pro)renin receptor in the ovary and to assess the effect of prorenin on meiotic resumption. The (pro)renin receptor protein was detected in bovine cumulus-oocyte complexes, theca cells, granulosa cells, and in the corpus luteum. Abundant (pro)renin receptor messenger ribonucleic acid (mRNA) was detected in the oocytes and cumulus cells, while prorenin mRNA was identified in the cumulus cells only. Prorenin at concentrations of 10(-10), 10(-9), and 10(-8)M incubated with oocytes co-cultured with follicular hemisections for 15h caused the resumption of oocyte meiosis. Aliskiren, which inhibits free renin and receptor-bound renin/prorenin, at concentrations of 10(-7), 10(-5), and 10(-3)M blocked this effect (P<0.05). To determine the involvement of angiotensin II in prorenin-induced meiosis resumption, cumulus-oocyte complexes and follicular hemisections were treated with prorenin and with angiotensin II or saralasin (angiotensin II antagonist). Prorenin induced the resumption of meiosis independently of angiotensin II. Furthermore, cumulus-oocyte complexes cultured with forskolin (200μM) and treated with prorenin and aliskiren did not exhibit a prorenin-induced resumption of meiosis (P<0.05). Only the oocytes' cyclic adenosine monophosphate levels seemed to be regulated by prorenin and/or forskolin treatment after incubation for 6h. To the best of our knowledge, this is the first study to identify the (pro)renin receptor in ovarian cells and to demonstrate the independent role of prorenin in the resumption of oocyte meiosis in cattle.
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Affiliation(s)
- Andressa Minussi Pereira Dau
- Laboratory of Biotechnology and Animal Reproduction, BioRep, Federal University of Santa Maria, Roraima Avenue 1000, 97105-900, Veterinary Hospital, Santa Maria, RS, Brazil
| | - Eduardo Pradebon da Silva
- Laboratory of Biotechnology and Animal Reproduction, BioRep, Federal University of Santa Maria, Roraima Avenue 1000, 97105-900, Veterinary Hospital, Santa Maria, RS, Brazil
| | - Paulo Roberto Antunes da Rosa
- Laboratory of Biotechnology and Animal Reproduction, BioRep, Federal University of Santa Maria, Roraima Avenue 1000, 97105-900, Veterinary Hospital, Santa Maria, RS, Brazil
| | - Felipe Tusi Bastiani
- Laboratory of Biotechnology and Animal Reproduction, BioRep, Federal University of Santa Maria, Roraima Avenue 1000, 97105-900, Veterinary Hospital, Santa Maria, RS, Brazil
| | - Karina Gutierrez
- Laboratory of Biotechnology and Animal Reproduction, BioRep, Federal University of Santa Maria, Roraima Avenue 1000, 97105-900, Veterinary Hospital, Santa Maria, RS, Brazil
| | - Gustavo Freitas Ilha
- Laboratory of Biotechnology and Animal Reproduction, BioRep, Federal University of Santa Maria, Roraima Avenue 1000, 97105-900, Veterinary Hospital, Santa Maria, RS, Brazil
| | - Fabio Vasconcellos Comim
- Laboratory of Biotechnology and Animal Reproduction, BioRep, Federal University of Santa Maria, Roraima Avenue 1000, 97105-900, Veterinary Hospital, Santa Maria, RS, Brazil; Department of Medical Clinic, Faculty of Medicine, Federal University of Santa Maria, Roraima Avenue 1000, 97105-900, Santa Maria, RS, Brazil
| | - Paulo Bayard Dias Gonçalves
- Laboratory of Biotechnology and Animal Reproduction, BioRep, Federal University of Santa Maria, Roraima Avenue 1000, 97105-900, Veterinary Hospital, Santa Maria, RS, Brazil.
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Dumesic DA, Guedikian AA, Madrigal VK, Phan JD, Hill DL, Alvarez JP, Chazenbalk GD. Cumulus Cell Mitochondrial Resistance to Stress In Vitro Predicts Oocyte Development During Assisted Reproduction. J Clin Endocrinol Metab 2016; 101:2235-45. [PMID: 27003307 DOI: 10.1210/jc.2016-1464] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
Abstract
CONTEXT Complex cumulus cell-oocyte interactions govern energy utilization during oocyte development. OBJECTIVE This study investigates the relationship of cumulus cell mitochondria with oocyte development during ovarian stimulation for in vitro fertilization (IVF). DESIGN This is a prospective cohort study. SETTING The setting was an academic center. PATIENTS Thirty women underwent ovarian stimulation for IVF. INTERVENTION(S) Pooled cumulus cells were collected; numbers of total and mature oocytes and two-pronuclear (day 1), six- to eight-cell cleavage (day 3), and blastocyst (day 5) embryos were recorded. MAIN OUTCOME MEASURE(S) A mitochondrial bioassay was developed with Jurkat cells and used with cumulus cells from IVF patients to correlate mitochondrial membrane potential resistance to carbonyl cyanide 3-chlorophenylhydrazone (CCCP) stress with oocyte development and embryogenesis. RESULTS Adjusting for FSH administered and maternal age, cumulus cell mitochondrial membrane potential resistance to CCCP positively correlated with numbers of total (P < .025) and mature (P < .025) oocytes retrieved. The highest oocyte numbers that correlated with cumulus cell mitochondrial membrane potential occurred in women with the greatest ovarian response to FSH (mitochondrial membrane potential resistance to CCCP-log FSH interactions: total oocytes P < .025; mature oocytes P < .05). Multiple regression modeling of mature oocyte numbers, age, and cumulus cell mitochondrial membrane potential resistance to CCCP showed that numbers of mature oocytes best correlated with numbers of embryos at all stages (P < .0001). CONCLUSION During ovarian stimulation for IVF, cumulus cell mitochondrial membrane potential resistance to stress correlates with numbers of total and mature oocytes retrieved, suggesting that cumulus cell-oocyte interactions involving energy facilitate oocyte development.
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Affiliation(s)
- Daniel A Dumesic
- Department of Obstetrics and Gynecology (D.A.D., A.A.G., V.K.M., J.D.P., J.P.A., G.D.C., University of California, Los Angeles, Los Angeles, California 90095; ART Reproductive Center (D.L.H.), Beverly Hills, California 90210
| | - Annie A Guedikian
- Department of Obstetrics and Gynecology (D.A.D., A.A.G., V.K.M., J.D.P., J.P.A., G.D.C., University of California, Los Angeles, Los Angeles, California 90095; ART Reproductive Center (D.L.H.), Beverly Hills, California 90210
| | - Vanessa K Madrigal
- Department of Obstetrics and Gynecology (D.A.D., A.A.G., V.K.M., J.D.P., J.P.A., G.D.C., University of California, Los Angeles, Los Angeles, California 90095; ART Reproductive Center (D.L.H.), Beverly Hills, California 90210
| | - Julia D Phan
- Department of Obstetrics and Gynecology (D.A.D., A.A.G., V.K.M., J.D.P., J.P.A., G.D.C., University of California, Los Angeles, Los Angeles, California 90095; ART Reproductive Center (D.L.H.), Beverly Hills, California 90210
| | - David L Hill
- Department of Obstetrics and Gynecology (D.A.D., A.A.G., V.K.M., J.D.P., J.P.A., G.D.C., University of California, Los Angeles, Los Angeles, California 90095; ART Reproductive Center (D.L.H.), Beverly Hills, California 90210
| | - Juan P Alvarez
- Department of Obstetrics and Gynecology (D.A.D., A.A.G., V.K.M., J.D.P., J.P.A., G.D.C., University of California, Los Angeles, Los Angeles, California 90095; ART Reproductive Center (D.L.H.), Beverly Hills, California 90210
| | - Gregorio D Chazenbalk
- Department of Obstetrics and Gynecology (D.A.D., A.A.G., V.K.M., J.D.P., J.P.A., G.D.C., University of California, Los Angeles, Los Angeles, California 90095; ART Reproductive Center (D.L.H.), Beverly Hills, California 90210
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Shaeib F, Khan SN, Thakur M, Kohan-Ghadr HR, Drewlo S, Saed GM, Pennathur S, Abu-Soud HM. The Impact of Myeloperoxidase and Activated Macrophages on Metaphase II Mouse Oocyte Quality. PLoS One 2016; 11:e0151160. [PMID: 26982351 PMCID: PMC4794194 DOI: 10.1371/journal.pone.0151160] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Accepted: 02/24/2016] [Indexed: 01/26/2023] Open
Abstract
Myeloperoxidase (MPO), an abundant heme-containing enzyme present in neutrophils, monocytes, and macrophages, is produced in high levels during inflammation, and associated with poor reproductive outcomes. MPO is known to generate hypochlorous acid (HOCl), a damaging reactive oxygen species (ROS) utilizing hydrogen peroxide (H2O2) and chloride (Cl-). Here we investigate the effect of activated immune cells and MPO on oocyte quality. Mouse metaphase II oocytes were divided into the following groups: 1) Incubation with a catalytic amount of MPO (40 nM) for different incubation periods in the presence of 100 mM Cl- with and without H2O2 and with and without melatonin (100 μM), at 37°C (n = 648/648 total number of oocytes in each group for oocytes with and without cumulus cells); 2) Co-cultured with activated mouse peritoneal macrophage and neutrophils cells (1.0 x 106 cells/ml) in the absence and presence of melatonin (200 μM), an MPO inhibitor/ROS scavenger, for different incubation periods in HTF media, at 37°C (n = 200/200); 3) Untreated oocytes incubated for 4 hrs as controls (n = 73/64). Oocytes were then fixed, stained and scored based on the microtubule morphology and chromosomal alignment. All treatments were found to negatively affect oocyte quality in a time dependent fashion as compared to controls. In all cases the presence of cumulus cells offered no protection; however significant protection was offered by melatonin. Similar results were obtained with oocytes treated with neutrophils. This work provides a direct link between MPO and decreased oocyte quality. Therefore, strategies to decrease MPO mediated inflammation may influence reproductive outcomes.
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Affiliation(s)
- Faten Shaeib
- Department of Obstetrics and Gynecology, the C.S. Mott Center for Human Growth and Development, Wayne State University School of Medicine, Detroit, MI 48201, United States of America
| | - Sana N. Khan
- Department of Obstetrics and Gynecology, the C.S. Mott Center for Human Growth and Development, Wayne State University School of Medicine, Detroit, MI 48201, United States of America
| | - Mili Thakur
- Department of Obstetrics and Gynecology, the C.S. Mott Center for Human Growth and Development, Wayne State University School of Medicine, Detroit, MI 48201, United States of America
| | - Hamid-Reza Kohan-Ghadr
- Department of Obstetrics and Gynecology, the C.S. Mott Center for Human Growth and Development, Wayne State University School of Medicine, Detroit, MI 48201, United States of America
| | - Sascha Drewlo
- Department of Obstetrics and Gynecology, the C.S. Mott Center for Human Growth and Development, Wayne State University School of Medicine, Detroit, MI 48201, United States of America
| | - Ghassan M. Saed
- Department of Obstetrics and Gynecology, the C.S. Mott Center for Human Growth and Development, Wayne State University School of Medicine, Detroit, MI 48201, United States of America
| | - Subramaniam Pennathur
- Division of Nephrology, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan, United States of America
| | - Husam M. Abu-Soud
- Department of Obstetrics and Gynecology, the C.S. Mott Center for Human Growth and Development, Wayne State University School of Medicine, Detroit, MI 48201, United States of America
- Department of Biochemistry and Molecular Biology, Wayne State University School of Medicine, Detroit, MI 48201, United States of America
- * E-mail:
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Campen KA, Clark ZL, Olds MA, McNatty KP, Pitman JL. The in-vitro effects of cAMP and cGMP modulators on inter-cellular dye transfer and gene expression levels in rat cumulus cell--oocyte complexes. Mol Cell Endocrinol 2016; 420:46-56. [PMID: 26628038 DOI: 10.1016/j.mce.2015.11.025] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2015] [Revised: 11/19/2015] [Accepted: 11/22/2015] [Indexed: 11/16/2022]
Abstract
Supplementation of in-vitro maturation medium with reagents that inhibit meiotic resumption whilst supporting normal function of cumulus cell-oocyte complexes (COC) is challenging. This study compared the in-vitro effects of synthetic and physiologically-relevant reagents on meiotic resumption, gap junction activity and gene expression of rat COC. Higher doses of forskolin reduced gap junction activity. Whilst addition of phosphodiesterase inhibitors initially promoted gap junction activity, this decreased with time in-vitro. Moreover despite oocytes remaining in meiotic arrest, there was a concomitant decline in expression of genes critical for oocyte maturation, and evidence of a reduction in overall transcription rate. Similarly, supplementing media with C-type natriuretic peptide and/or oestradiol delayed meiotic resumption and only initially maintained gap junction activity. In contrast, several key genes were stimulated and overall transcription rates remained constant with time in-vitro. In summary, supplementation of media with physiologically-relevant reagents may better enable normal functions of the COC.
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Affiliation(s)
- Kelly A Campen
- School of Biological Sciences, Victoria University of Wellington, PO Box 600, Wellington 6140, New Zealand
| | - Zaramasina L Clark
- School of Biological Sciences, Victoria University of Wellington, PO Box 600, Wellington 6140, New Zealand
| | - Melanie A Olds
- School of Biological Sciences, Victoria University of Wellington, PO Box 600, Wellington 6140, New Zealand
| | - Kenneth P McNatty
- School of Biological Sciences, Victoria University of Wellington, PO Box 600, Wellington 6140, New Zealand
| | - Janet L Pitman
- School of Biological Sciences, Victoria University of Wellington, PO Box 600, Wellington 6140, New Zealand.
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Yang CR, Lowther KM, Lalioti MD, Seli E. Embryonic Poly(A)-Binding Protein (EPAB) Is Required for Granulosa Cell EGF Signaling and Cumulus Expansion in Female Mice. Endocrinology 2016; 157:405-16. [PMID: 26492470 PMCID: PMC4701890 DOI: 10.1210/en.2015-1135] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Embryonic poly(A)-binding protein (EPAB) is the predominant poly(A)-binding protein in Xenopus, mouse, and human oocytes and early embryos before zygotic genome activation. EPAB is required for translational activation of maternally stored mRNAs in the oocyte and Epab(-/-) female mice are infertile due to impaired oocyte maturation, cumulus expansion, and ovulation. The aim of this study was to characterize the mechanism of follicular somatic cell dysfunction in Epab(-/-) mice. Using a coculture system of oocytectomized cumulus oophorus complexes (OOXs) with denuded oocytes, we found that when wild-type OOXs were cocultured with Epab(-/-) oocytes, or when Epab(-/-) OOXs were cocultured with WT oocytes, cumulus expansion failed to occur in response to epidermal growth factor (EGF). This finding suggests that oocytes and cumulus cells (CCs) from Epab(-/-) mice fail to send and receive the necessary signals required for cumulus expansion. The abnormalities in Epab(-/-) CCs are not due to lower expression of the oocyte-derived factors growth differentiation factor 9 or bone morphogenetic protein 15, because Epab(-/-) oocytes express these proteins at comparable levels with WT. Epab(-/-) granulosa cells (GCs) exhibit decreased levels of phosphorylated MEK1/2, ERK1/2, and p90 ribosomal S6 kinase in response to lutenizing hormone and EGF treatment, as well as decreased phosphorylation of the EGF receptor. In conclusion, EPAB, which is oocyte specific, is required for the ability of CCs and GCs to become responsive to LH and EGF signaling. These results emphasize the importance of oocyte-somatic communication for GC and CC function.
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Affiliation(s)
- Cai-Rong Yang
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut 06510
| | - Katie M Lowther
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut 06510
| | - Maria D Lalioti
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut 06510
| | - Emre Seli
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut 06510
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Gómez-Torres MJ, García EM, Guerrero J, Medina S, Izquierdo-Rico MJ, Gil-Izquierdo Á, Orduna J, Savirón M, González-Brusi L, Ten J, Bernabeu R, Avilés M. Metabolites involved in cellular communication among human cumulus-oocyte-complex and sperm during in vitro fertilization. Reprod Biol Endocrinol 2015; 13:123. [PMID: 26553294 PMCID: PMC4640411 DOI: 10.1186/s12958-015-0118-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Accepted: 10/22/2015] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Fertilization is a key physiological process for the preservation of the species. Consequently, different mechanisms affecting the sperm and the oocyte have been developed to ensure a successful fertilization. Thus, sperm acrosome reaction is necessary for the egg coat penetration and sperm-oolema fusion. Several molecules are able to induce the sperm acrosome reaction; however, this process should be produced coordinately in time and in the space to allow the success of fertilization between gametes. The goal of this study was to analyze the metabolites secreted by cumulus-oocyte-complex (COC) to find out new components that could contribute to the induction of the human sperm acrosome reaction and other physiological processes at the time of gamete interaction and fertilization. METHODS For the metabolomic analysis, eighteen aliquots of medium were used in each group, containing: a) only COC before insemination and after 3 h of incubation; b) COC and capacitated spermatozoa after insemination and incubated for 16-20 hours; c) only capacitated sperm after 16-20 h in culture and d) only fertilization medium as control. Six patients undergoing assisted reproduction whose male partners provided normozoospermic samples were included in the study. Seventy-two COC were inseminated. RESULTS The metabolites identified were monoacylglycerol (MAG), lysophosphatidylcholine (LPC) and phytosphingosine (PHS). Analysis by PCR and in silico of the gene expression strongly suggests that the cumulus cells contribute to the formation of the PHS and LPC. CONCLUSIONS LPC and PHS are secreted by cumulus cells during in vitro fertilization and they could be involved in the induction of human acrosome reaction (AR). The identification of new molecules with a paracrine effect on oocytes, cumulus cells and spermatozoa will provide a better understanding of gamete interaction.
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Affiliation(s)
- María José Gómez-Torres
- Department of Biotechnology, University of Alicante, 99, Carretera de San Vicente s/n, Alicante, 03016, Spain.
| | - Eva María García
- Department of Biotechnology, University of Alicante, 99, Carretera de San Vicente s/n, Alicante, 03016, Spain
- Instituto Bernabeu of Fertility and Gynecology, Alicante, 03016, Spain
| | - Jaime Guerrero
- Instituto Bernabeu of Fertility and Gynecology, Alicante, 03016, Spain
| | - Sonia Medina
- Research Group on Quality, Safety and Bioactivity of Plant Foods, Food Science and Technology Department, CEBAS-CSIC, Espinardo (Murcia), Spain
| | - María José Izquierdo-Rico
- Department of Cell Biology and Histology, Faculty of Medicine, University of Murcia, Campus Mare Nostrum, Espinardo 30100 and IMIB, Murcia, Spain
| | - Ángel Gil-Izquierdo
- Research Group on Quality, Safety and Bioactivity of Plant Foods, Food Science and Technology Department, CEBAS-CSIC, Espinardo (Murcia), Spain
| | - Jesús Orduna
- Institute of Materials Science of Aragon, CSIC-University of Zaragoza, 50009, Zaragoza, Spain
| | - María Savirón
- Institute of Materials Science of Aragon, CSIC-University of Zaragoza, 50009, Zaragoza, Spain
| | - Leopoldo González-Brusi
- Department of Cell Biology and Histology, Faculty of Medicine, University of Murcia, Campus Mare Nostrum, Espinardo 30100 and IMIB, Murcia, Spain
| | - Jorge Ten
- Department of Biotechnology, University of Alicante, 99, Carretera de San Vicente s/n, Alicante, 03016, Spain
- Instituto Bernabeu of Fertility and Gynecology, Alicante, 03016, Spain
| | - Rafael Bernabeu
- Instituto Bernabeu of Fertility and Gynecology, Alicante, 03016, Spain
| | - Manuel Avilés
- Department of Cell Biology and Histology, Faculty of Medicine, University of Murcia, Campus Mare Nostrum, Espinardo 30100 and IMIB, Murcia, Spain
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Abstract
It has been shown that following endogenous gonadotropin surge, oocyte-cumulus complexes (OCC) synthesize hyaluronan (HA) in a process called cumulus expansion. During this process, HA associates with proteins and proteoglycans to form the expanded HA-rich oocyte-cumulus extracellular matrix (ECM), where the heavy chains of the serum derived inter-α-trypsin inhibitor family (IαI) bind covalently to HA. No study has been performed on the occurrence and regulation of this process during oocyte maturation in species other than mouse and pig, although, the heavy chains (of IαI)-HA complex was purified from human amniotic membrane. The present review pointing out that: 1/ formation of expanded HA-rich oocyte-cumulus ECM is dependent on the presence of IαI molecules, 2/ the heavy chains of IαI molecules identified in the serum are covalently linked to HA during cumulus expansion in mouse and pig, 3/ the family of IαI molecules can freely cross the blood-follicle barrier, and the follicular fluid collected at any stage of folliculogenesis can be successfully used instead of serum to form expanded cumulus ECM in pig, and 4/ proteins of the IαI family can affect reproductive process by modulating the expression of a large number of cellular genes during a preovulatory period. Finally, this review provides clear evidence that IαI family members present in the serum or follicular fluid become responsible for cumulus expansion, as without these proteins, expanded cumulus HA-rich ECM is not formed and HA is released into medium.
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