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Aoki S, Inoue Y, Hara S, Itou J, Shirasuna K, Iwata H. microRNAs associated with the quality of follicular fluids affect oocyte and early embryonic development. Reprod Med Biol 2024; 23:e12559. [PMID: 38239486 PMCID: PMC10795439 DOI: 10.1002/rmb2.12559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Revised: 12/10/2023] [Accepted: 12/26/2023] [Indexed: 01/22/2024] Open
Abstract
Purpose Oocyte and embryo quality differs significantly among individuals. Follicular fluid (FF) is a solo environment of oocyte maturation and may flux into the oviduct. Supplementation of in vitro maturation (IVM) and culture (IVC) medium with extracellular vesicles of FFs supports oocyte maturation and embryonic development. We addressed a hypothesis that miRNA profiles in FFs are crucial background of oocyte maturation and embryonic development. Methods FFs were collected from the ovaries of individual cows, and the FFs were classified into Good or Poor FF based on the developmental rate to the blastocyst stage of enclosed oocytes. miRNAs associated with the Good FFs were explored using small RNA sequencing. In addition, FFs were classified using the concentration of Good-FF-associated miRNAs. These classified FFs or miRNA were added to the IVM or IVC mediums. Results Supplementation of IVM and IVC medium with Good FF improved embryonic development. Good FFs contained miR-151-3p and miR-425-5p at a high concentration compared with those in Poor FFs. FFs selected by the concentration of miR-151-3p and miR-425-5p improved oocyte maturation and embryonic development. Supplementation of IVM or IVC medium with either miR-151-3p or miR-425-5p improved embryonic development to the blastocyst stage. Conclusion miRNAs were associated with the Good FFs determined oocyte maturation and embryonic development.
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Affiliation(s)
- Sogo Aoki
- Department of Animal Science, Graduate School of AgricultureTokyo University of AgricultureAtsugi CityKanagawaJapan
| | - Yuki Inoue
- Department of Animal Science, Graduate School of AgricultureTokyo University of AgricultureAtsugi CityKanagawaJapan
| | - Shunsuke Hara
- Department of Animal Science, Graduate School of AgricultureTokyo University of AgricultureAtsugi CityKanagawaJapan
| | - Jun Itou
- Department of Animal Science, Graduate School of AgricultureTokyo University of AgricultureAtsugi CityKanagawaJapan
| | - Koumei Shirasuna
- Department of Animal Science, Graduate School of AgricultureTokyo University of AgricultureAtsugi CityKanagawaJapan
| | - Hisataka Iwata
- Department of Animal Science, Graduate School of AgricultureTokyo University of AgricultureAtsugi CityKanagawaJapan
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Di Berardino C, Peserico A, Capacchietti G, Zappacosta A, Bernabò N, Russo V, Mauro A, El Khatib M, Gonnella F, Konstantinidou F, Stuppia L, Gatta V, Barboni B. High-Fat Diet and Female Fertility across Lifespan: A Comparative Lesson from Mammal Models. Nutrients 2022; 14:nu14204341. [PMID: 36297035 PMCID: PMC9610022 DOI: 10.3390/nu14204341] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 10/10/2022] [Accepted: 10/14/2022] [Indexed: 11/18/2022] Open
Abstract
Female reproduction focuses mainly on achieving fully grown follicles and competent oocytes to be successfully fertilized, as well as on nourishing the developing offspring once pregnancy occurs. Current evidence demonstrates that obesity and/or high-fat diet regimes can perturbate these processes, leading to female infertility and transgenerational disorders. Since the mechanisms and reproductive processes involved are not yet fully clarified, the present review is designed as a systematic and comparative survey of the available literature. The available data demonstrate the adverse influences of obesity on diverse reproductive processes, such as folliculogenesis, oogenesis, and embryo development/implant. The negative reproductive impact may be attributed to a direct action on reproductive somatic and germinal compartments and/or to an indirect influence mediated by the endocrine, metabolic, and immune axis control systems. Overall, the present review highlights the fragmentation of the current information limiting the comprehension of the reproductive impact of a high-fat diet. Based on the incidence and prevalence of obesity in the Western countries, this topic becomes a research challenge to increase self-awareness of dietary reproductive risk to propose solid and rigorous preventive dietary regimes, as well as to develop targeted pharmacological interventions.
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Affiliation(s)
- Chiara Di Berardino
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, 64100 Teramo, Italy
| | - Alessia Peserico
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, 64100 Teramo, Italy
- Correspondence:
| | - Giulia Capacchietti
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, 64100 Teramo, Italy
| | - Alex Zappacosta
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, 64100 Teramo, Italy
| | - Nicola Bernabò
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, 64100 Teramo, Italy
- Institute of Biochemistry and Cell Biology (IBBC), National Research Council, A. Buzzati-Traverso Campus, via E. Ramarini 32, Monterotondo Scalo, 00015 Rome, Italy
| | - Valentina Russo
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, 64100 Teramo, Italy
| | - Annunziata Mauro
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, 64100 Teramo, Italy
| | - Mohammad El Khatib
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, 64100 Teramo, Italy
| | - Francesca Gonnella
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, 64100 Teramo, Italy
- Department of Psychological Health and Territorial Sciences, School of Medicine and Health Sciences, “G. d’Annunzio” University of Chieti-Pescara, 66100 Chieti, Italy
- Unit of Molecular Genetics, Center for Advanced Studies and Technology (CAST), “G. d’Annunzio” University of Chieti-Pescara, 66100 Chieti, Italy
| | - Fani Konstantinidou
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, 64100 Teramo, Italy
- Department of Psychological Health and Territorial Sciences, School of Medicine and Health Sciences, “G. d’Annunzio” University of Chieti-Pescara, 66100 Chieti, Italy
- Unit of Molecular Genetics, Center for Advanced Studies and Technology (CAST), “G. d’Annunzio” University of Chieti-Pescara, 66100 Chieti, Italy
| | - Liborio Stuppia
- Department of Psychological Health and Territorial Sciences, School of Medicine and Health Sciences, “G. d’Annunzio” University of Chieti-Pescara, 66100 Chieti, Italy
- Unit of Molecular Genetics, Center for Advanced Studies and Technology (CAST), “G. d’Annunzio” University of Chieti-Pescara, 66100 Chieti, Italy
| | - Valentina Gatta
- Department of Psychological Health and Territorial Sciences, School of Medicine and Health Sciences, “G. d’Annunzio” University of Chieti-Pescara, 66100 Chieti, Italy
- Unit of Molecular Genetics, Center for Advanced Studies and Technology (CAST), “G. d’Annunzio” University of Chieti-Pescara, 66100 Chieti, Italy
| | - Barbara Barboni
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, 64100 Teramo, Italy
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He X, Wang D, Zhu F, Jiang Y, Bi J, Lu X, Zhao M, Wu W, Li J. Astaxanthin alleviates palmitic acid‐induced hindrance of porcine oocyte maturation. Reprod Domest Anim 2022; 57:1440-1449. [DOI: 10.1111/rda.14221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Accepted: 07/28/2022] [Indexed: 11/26/2022]
Affiliation(s)
- Xu He
- College of Animal Science and Technology Nanjing Agricultural University, Nanjing Weigang No.1 Nanjing Jiangsu China
| | - Dayu Wang
- College of Animal Science and Technology Nanjing Agricultural University, Nanjing Weigang No.1 Nanjing Jiangsu China
| | - Fuquan Zhu
- College of Animal Science and Technology Nanjing Agricultural University, Nanjing Weigang No.1 Nanjing Jiangsu China
| | - Yuan Jiang
- College of Animal Science and Technology Nanjing Agricultural University, Nanjing Weigang No.1 Nanjing Jiangsu China
| | - Jiaying Bi
- College of Animal Science and Technology Nanjing Agricultural University, Nanjing Weigang No.1 Nanjing Jiangsu China
| | - Xinyue Lu
- College of Animal Science and Technology Nanjing Agricultural University, Nanjing Weigang No.1 Nanjing Jiangsu China
| | - Mingyue Zhao
- College of Animal Science and Technology Nanjing Agricultural University, Nanjing Weigang No.1 Nanjing Jiangsu China
| | - Weidong Wu
- Reproductive Research Central Lab, Swine Research Institutes of TechBank Foods, Xuyi County, Huaian Jiangsu China
| | - Juan Li
- College of Animal Science and Technology Nanjing Agricultural University, Nanjing Weigang No.1 Nanjing Jiangsu China
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Shi M, Sirard MA. Effects of NEFAs during IVM on pig embryos from granulosa cell-cocultured oocytes. Mol Reprod Dev 2021; 88:805-816. [PMID: 34841613 DOI: 10.1002/mrd.23548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 08/30/2021] [Accepted: 11/19/2021] [Indexed: 11/06/2022]
Abstract
Circulating levels of nonesterified fatty acids (NEFAs) are elevated in some females, which can impair oocyte maturation and embryo development, and may alter the phenotype of the progeny. However, the effects of NEFAs on human embryo development are not clear due to ethical limitations. Thus, we used pig as the model to investigate the impacts of NEFAs on oocyte and embryo due to their similar reproductive and metabolic physiologies to humans. In this study, porcine cumulus-oocyte complexes were in vitro maturated under a pathologically high concentration of NEFAs (468 μM palmitic acid, 194 μM stearic acid, and 534 μM oleic acid) with the presence of granulosa cell monolayer, in contrast to control without NEFAs. The mature oocytes were fertilized to produce embryos for further analysis of the transcriptome and DNA methylation patterns. The elevated level of NEFAs decreased the blastocyst rate and delayed the blastocyst development. Ingenuity pathway analysis showed that the most affected gene pathways were related mainly to cell activities, metabolism, and inflammation. These findings indicated that oocytes exposed to the exogenous high level of NEFAs during in vitro maturation resulted in altered gene expression and DNA methylation of early embryos, which have detrimental impacts on blastocyst quality.
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Affiliation(s)
- Meihong Shi
- Département des Sciences Animales, Centre de recherche en reproduction, développement et santé intergénérationnelle, Faculté des sciences de l'Agriculture et de l'Alimentation, Pavillon Institut sur la Nutrition et les Aliments Fonctionnels, Université Laval, Quebec City, Québec, Canada
| | - Marc-André Sirard
- Département des Sciences Animales, Centre de recherche en reproduction, développement et santé intergénérationnelle, Faculté des sciences de l'Agriculture et de l'Alimentation, Pavillon Institut sur la Nutrition et les Aliments Fonctionnels, Université Laval, Quebec City, Québec, Canada
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5
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Shi M, Sirard MA. Cocultured porcine granulosa cells respond to excess non-esterified fatty acids during in vitro maturation. J Ovarian Res 2021; 14:142. [PMID: 34711256 PMCID: PMC8554973 DOI: 10.1186/s13048-021-00904-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 10/13/2021] [Indexed: 01/03/2023] Open
Abstract
Background Non-esterified fatty acids (NEFAs) are one of the main lipid components of follicular fluid at concentrations that depend on circulating levels. Elevated levels of NEFAs impair oocyte quality, development potential, and may subsequently influence the metabolism and reproductive fitness of offspring. Granulosa cells (GCs) are the follicular cells that are closely communicating with the oocyte. However, the responses of GCs exposed to high levels of NEFAs when cocultured with cumulus-oocyte complexes (COCs), and how they attenuate the negative effects of NEFAs on oocytes, are unclear. Results To better understand this protective effect, monolayers of porcine GCs were cocultured with COCs during in vitro maturation (IVM) in the presence of elevated levels of NEFAs. Genomic expression analysis was conducted to explore the responses of the GCs to the elevated levels of NEFAs. After limma algorithm analysis, 1,013 genes were differentially expressed between GCs cultured with and without elevated NEFAs. Among them, 438 genes were upregulated and 575 were downregulated. The differentially expressed genes were enriched in pathways related to metabolism, inflammation, and epithelial-mesenchymal transition. Conclusions The pathways and upstream regulators suggested that the cocultured GCs responded to the elevated NEFAs with (1) inhibition of the transition from granulosa to luteal cell, (2) interactions of metabolism change, anti-inflammation, mitochondrial function, and cell transition, (3) intercommunication with cocultured COCs of anti-inflammatory factors. Supplementary Information The online version contains supplementary material available at 10.1186/s13048-021-00904-y.
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Affiliation(s)
- Meihong Shi
- Centre de recherche en reproduction, développement et santé intergénérationnelle, Faculté des Sciences de l'Agriculture et de l'Alimentation, Département des Sciences Animales, Pavillon Institut sur la Nutrition et les Aliments Fonctionnels, Université Laval, Québec, Québec, Canada
| | - Marc-André Sirard
- Centre de recherche en reproduction, développement et santé intergénérationnelle, Faculté des Sciences de l'Agriculture et de l'Alimentation, Département des Sciences Animales, Pavillon Institut sur la Nutrition et les Aliments Fonctionnels, Université Laval, Québec, Québec, Canada.
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6
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Cecchino GN, García-Velasco JA, Rial E. Reproductive senescence impairs the energy metabolism of human luteinized granulosa cells. Reprod Biomed Online 2021; 43:779-787. [PMID: 34600856 DOI: 10.1016/j.rbmo.2021.08.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 07/23/2021] [Accepted: 08/05/2021] [Indexed: 10/20/2022]
Abstract
RESEARCH QUESTION Female age is the single greatest factor influencing reproductive performance and granulosa cells are considered as potential biomarkers of oocyte quality. Is there an age effect on the energy metabolism of human mural granulosa cells? DESIGN Observational prospective cohort and experimental study including 127 women who had undergone IVF cycles. Women were allocated to two groups: a group of infertile patients aged over 38 years and a control group comprising oocyte donors aged less than 35 years. Individuals with pathologies that could impair fertility were excluded from both groups. Following oocyte retrieval, cumulus and granulosa cells were isolated and their bioenergetic properties (oxidative phosphorylation parameters, rate of aerobic glycolysis and adenine nucleotide concentrations) were analysed and compared. RESULTS Human mural luteinized granulosa and cumulus cells present high rates of aerobic glycolysis that cannot be increased further when mitochondrial ATP synthesis is inhibited. Addition of follicular fluid to the experimental media is necessary to reach the full respiratory capacity of the cells. Granulosa cells from aged women present lower mitochondrial respiration (12.8 ± 1.6 versus 11.2 ± 1.6 pmol O2/min/mg; P = 0.046), although mitochondrial mass is not decreased, and lower aerobic glycolysis, than those from young donors (12.9 ± 1.3 versus 10.9 ± 0.5 mpH/min/mg; P = 0.009). The concurrent decrease in the two energy supply pathways leads to a decrease in the cellular energy charge (0.87 ± 0.01 versus 0.83 ± 0.02; P < 0.001). CONCLUSIONS Human mural luteinized granulosa cells exhibit a reduction in their energy metabolism as women age that is likely to influence female reproductive potential.
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Affiliation(s)
- Gustavo Nardini Cecchino
- Department of Gynecology, Federal University of São Paulo, São Paulo, Brazil; Department of Gynecology and Obstetrics, Rey Juan Carlos University, Alcorcón Madrid, Spain; IVI-Madrid, Aravaca Madrid 28023, Spain
| | - Juan Antonio García-Velasco
- Department of Gynecology and Obstetrics, Rey Juan Carlos University, Alcorcón Madrid, Spain; IVI-Madrid, Aravaca Madrid 28023, Spain
| | - Eduardo Rial
- Department of Structural and Chemical Biology, Centro de Investigaciones Biológicas Margarita Salas, CSIC, Madrid, Spain.
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Shi M, Sirard MA. Transcriptome and epigenome analysis of porcine embryos from non-esterified fatty acid-exposed oocytes. Domest Anim Endocrinol 2021; 76:106605. [PMID: 33631700 DOI: 10.1016/j.domaniend.2021.106605] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 01/08/2021] [Accepted: 01/08/2021] [Indexed: 12/22/2022]
Abstract
Increasing evidence indicates that maternal malnutrition leads to decreased female fertility and dysregulated metabolic homeostasis in offspring. High levels of non-esterified fatty acids (NEFAs) in follicular fluid were reported to be involved in these maternal nutritional effects, but the mechanisms remain unclear. This study explored the mechanisms of action of abnormal NEFA levels during porcine oocyte in vitro maturation (IVM) on early embryo development (blastocysts) using phenotypic, transcriptomic, and epigenetic analysis. The oocytes were treated during IVM with, in addition to the 1% (v/v) porcine follicular fluid in the control group, a combination of 468 μmol/L palmitic acid, 194 μmol/L stearic acid, and 534 μmol/L oleic acid supplemented to North Carolina State University-23 (NCSU-23) maturation medium to achieve a high level of NEFAs. After IVM, oocytes were in vitro fertilized and then cultured in regular conditions for blastocysts. Expanded blastocysts were collected to complete transcriptomic and epigenetic analysis. Macroscopically, high level of NEFAs impaired embryo development by reducing the blastocyst rate. Analysis of the transcriptome revealed that pathways related to inflammation, apoptosis, metabolism, and oxidative stress were the most affected. Moreover, DNA methylation data demonstrated differentially methylated regions in genes related to cellular metabolism and inflammation processes. Therefore, our conclusion is that high level of NEFAs during IVM might affect porcine early embryo development by diminishing blastocyst rate and altering gene expression, especially at the metabolism and cell status levels, which could further decrease the embryo quality.
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Affiliation(s)
- M Shi
- Centre de recherche en reproduction, développement et santé intergénérationnelle, Faculté des sciences de l'Agriculture et de l'Alimentation, Département des Sciences Animales, Pavillon INAF, Université Laval, Québec, Québec, Canada
| | - M-A Sirard
- Centre de recherche en reproduction, développement et santé intergénérationnelle, Faculté des sciences de l'Agriculture et de l'Alimentation, Département des Sciences Animales, Pavillon INAF, Université Laval, Québec, Québec, Canada.
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8
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Shibahara H, Ishiguro A, Inoue Y, Koumei S, Kuwayama T, Iwata H. Mechanism of palmitic acid-induced deterioration of in vitro development of porcine oocytes and granulosa cells. Theriogenology 2020; 141:54-61. [DOI: 10.1016/j.theriogenology.2019.09.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 08/19/2019] [Accepted: 09/05/2019] [Indexed: 12/20/2022]
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9
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Ishiguro A, Sakai H, Kansaku K, Shirasuna K, Iwata H. Effect of cryopreservation on the ability of granulosa cells to support in vitro development of oocytes derived from porcine early antral follicles. Theriogenology 2019; 143:50-56. [PMID: 31835100 DOI: 10.1016/j.theriogenology.2019.11.038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 11/25/2019] [Accepted: 11/30/2019] [Indexed: 12/19/2022]
Abstract
Granulosa cells (GCs) contribute to oocyte development. The present study addressed the effect of cryopreservation on the ability of GCs to support oocyte development. GCs were collected from antral follicles. Oocyte granulosa cell complexes (OGCs) derived from early antral follicles were cultured with additional fresh-GCs or frozen-thawed-GCs for 14 days, and the developmental ability and characteristics of the oocytes grown in vitro were examined. Furthermore, fresh- or frozen-thawed-GCs were cultured for two days, and the effects of cryopreservation on the characteristics of GCs were examined. The developmental ability of blastocysts and the acetylation levels of H4K12 in oocytes grown in vitro did not significantly differ among the three culture conditions: OGCs cultured with additional fresh-GCs, frozen-thawed-GCs, or without additional GCs. Although both fresh- and frozen-thawed-GCs exhibited increased ATP content compared with that in oocytes developed without additional GCs, only fresh-GCs showed significantly increased lipid content in oocytes grown in vitro. ATP content, reactive oxygen content, mitochondrial membrane potential, and mitochondrial DNA copy number were greater in cultured frozen-thawed-GCs compared with fresh-GCs. In contrast, lipid content of cultured frozen-thawed-GCs was lower than that of fresh-GCs. Both fresh- and frozen-GCs support oocyte growth, but cryopreservation changes the properties of GCs in a manner that affects the energy status of oocytes grown in vitro.
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Affiliation(s)
- Ai Ishiguro
- Tokyo University of Agriculture. Funako 1737, Atusgi City, 243-0034, Japan
| | - Hayato Sakai
- Tokyo University of Agriculture. Funako 1737, Atusgi City, 243-0034, Japan
| | - Kazuki Kansaku
- Tokyo University of Agriculture. Funako 1737, Atusgi City, 243-0034, Japan
| | - Koumei Shirasuna
- Tokyo University of Agriculture. Funako 1737, Atusgi City, 243-0034, Japan
| | - Hisataka Iwata
- Tokyo University of Agriculture. Funako 1737, Atusgi City, 243-0034, Japan.
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The PPARδ Agonist GW501516 Improves Lipolytic/Lipogenic Balance through CPT1 and PEPCK during the Development of Pre-Implantation Bovine Embryos. Int J Mol Sci 2019; 20:ijms20236066. [PMID: 31810173 PMCID: PMC6928732 DOI: 10.3390/ijms20236066] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 11/20/2019] [Accepted: 11/29/2019] [Indexed: 12/15/2022] Open
Abstract
The PPARs (peroxisome proliferator-activated receptors) play critical roles in the regulation of lipid and glucose metabolism. PPARδ, a member of the PPARs family, is associated with decreased susceptibility to ectopic lipid deposition and is implicated in the regulation of mitochondrial processes. The current study aimed to determine the role of PPARδ in fatty acid β-oxidation and its influence on PEPCK for the lipogenic/lipolytic balance during in vitro bovine oocyte maturation and embryo development. Activation of PPARδ by GW501516, but not 2-BP, was indicated by intact embryonic PEPCK (cytosolic) and CPT1 expression and the balance between free fatty acids and mitochondrial β-oxidation that reduced ROS and inhibited p-NF-κB nuclear localization. Genes involved in lipolysis, fatty acid oxidation, and apoptosis showed significant differences after the GW501516 treatment relative to the control- and 2-BP-treated embryos. GSK3787 reversed the PPARδ-induced effects by reducing PEPCK and CPT1 expression and the mitochondrial membrane potential, revealing the importance of PPARδ/PEPCK and PPARδ/CPT1 for controlling lipolysis during embryo development. In conclusion, GW501516-activated PPARδ maintained the correlation between lipolysis and lipogenesis by enhancing PEPCK and CPT1 to improve bovine embryo quality.
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Ishiguro A, Munakata Y, Shirasuna K, Kuwayama T, Iwata H. Addition of granulosa cells collected from differential follicle stages supports development of oocytes derived from porcine early antral follicles. Reprod Med Biol 2019; 18:65-71. [PMID: 30655723 PMCID: PMC6332817 DOI: 10.1002/rmb2.12248] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 09/23/2018] [Accepted: 09/26/2018] [Indexed: 12/15/2022] Open
Abstract
PURPOSE Improvement of in vitro oocyte growth by addition of granulosa cells derived from differential developmental stages of follicles. METHODS Granulosa cells (GCs) collected from either early antral follicles (EAFs) or antral follicles (AFs) were added to oocyte-granulosa cell complexes (OGCs) derived from EAFs, and the in vitro growth of the oocytes was evaluated. RESULTS Granulosa cells were incorporated into OGCs to form new OGCs within 2 days of culture. After 14 days of culture, the number of GCs surrounding oocytes was similar among the three OGCs conditions (unmanipulated "natural OGCs," "EAF-GCs add OGCs," and "AF-GCs add OGCs"), whereas the survival rate of the GCs and diameter of oocytes grown in vitro were the greatest for "AF-GCs added OGCs." After parthenogenetic activation, developmental rate till the blastocyst stage tended to be higher for "AF-GCs add OGCs" compared with other groups. Addition of AF-GCs significantly increased a hypoxic marker (pimonidazole staining) and increased the lipid content in oocytes grown in vitro compared with unmanipulated OGCs. CONCLUSION Addition of GCs derived from more advanced stages of follicles to the OGCs changes the metabolism of oocytes and is beneficial for in vitro growth of oocytes derived from EAFs.
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Affiliation(s)
- Ai Ishiguro
- Department of Animal ScienceTokyo University of AgricultureAtsugiJapan
| | - Yasuhisa Munakata
- Department of Animal ScienceTokyo University of AgricultureAtsugiJapan
| | - Koumei Shirasuna
- Department of Animal ScienceTokyo University of AgricultureAtsugiJapan
| | - Takehito Kuwayama
- Department of Animal ScienceTokyo University of AgricultureAtsugiJapan
| | - Hisataka Iwata
- Department of Animal ScienceTokyo University of AgricultureAtsugiJapan
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