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Vasconcelos EM, Braga RF, Leal GR, Carvalho RPR, Machado-Neves M, Sudano MJ, Souza-Fabjan JMG. Impact of reducing lipid content during in vitro embryo production: A systematic review and meta-analysis. Theriogenology 2024; 222:31-44. [PMID: 38615434 DOI: 10.1016/j.theriogenology.2024.04.003] [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] [Received: 12/02/2023] [Revised: 03/16/2024] [Accepted: 04/08/2024] [Indexed: 04/16/2024]
Abstract
There is still no consensus regarding the role of lipid modulators during in vitro embryo production. Thus, we investigated how lipid reducers during the in vitro maturation of oocytes (IVM) or in vitro culture (IVC) of embryos impact their cryotolerance. A literature search was performed using three databases, recovering 43 articles for the systematic review, comprising 75 experiments (13 performed in IVM, 62 in IVC) and testing 13 substances. In 39 % of the experiments, an increase in oocyte and/or embryo survival after cryopreservation was reported, in contrast to 48 % exhibiting no effect, 5 % causing negative effects, and 8 % influencing in a dose-dependent manner. Of the 75 experiments extracted during IVM and IVC, 41 quantified the lipid content. Of those that reduced lipid content (n = 26), 50 % increased cryotolerance, 34 % had no effect, 8 % harmed oocyte/embryo survival, and 8 % had different results depending on the concentration used. Moreover, 28 out of the 43 studies were analyzed under a meta-analytical approach at the IVC stage in cattle. There was an improvement in the cryotolerance of bovine embryos when the lipid content was reduced. Forskolin, l-carnitine, and phenazine ethosulfate positively affected cryotolerance, while conjugated linoleic acid had no effect and impaired embryonic development. Moreover, fetal bovine serum has a positive impact on cryotolerance. SOF and CR1aa IVC media improved cryotolerance, while mSOF showed no effect. In conclusion, lipid modulators did not unanimously improve cryotolerance, especially when used in IVM, but presented positive effects on cryotolerance during IVC when reaching lipid reduction.
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Affiliation(s)
- Erlandia M Vasconcelos
- Faculdade de Veterinária, Universidade Federal Fluminense, Av. Vital Brasil Filho, 64, CEP, 24230-340, Niterói, RJ, Brazil.
| | - Rachel F Braga
- Faculdade de Veterinária, Universidade Federal Fluminense, Av. Vital Brasil Filho, 64, CEP, 24230-340, Niterói, RJ, Brazil
| | - Gabriela R Leal
- Faculdade de Veterinária, Universidade Federal Fluminense, Av. Vital Brasil Filho, 64, CEP, 24230-340, Niterói, RJ, Brazil
| | - Renner P R Carvalho
- Departamento de Biologia Geral, Universidade Federal de Viçosa, Viçosa, Brazil
| | | | - Mateus J Sudano
- Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, SP, Brazil
| | - Joanna M G Souza-Fabjan
- Faculdade de Veterinária, Universidade Federal Fluminense, Av. Vital Brasil Filho, 64, CEP, 24230-340, Niterói, RJ, Brazil.
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Wang XY, Gao Y, Liu HR, Wang T, Feng ML, Xue FR, Ding K, Yang Q, Jiang ZY, Sun D, Song CR, Zhang XJ, Liang CG. C-Phycocyanin improves the quality of goat oocytes after in vitro maturation and vitrification. Theriogenology 2024; 222:66-79. [PMID: 38626583 DOI: 10.1016/j.theriogenology.2024.04.004] [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] [Received: 02/07/2024] [Revised: 03/30/2024] [Accepted: 04/11/2024] [Indexed: 04/18/2024]
Abstract
In vitro maturation (IVM) and cryopreservation of goat oocytes are important for establishing a valuable genetic bank for domesticated female animals and improving livestock reproductive efficiency. C-Phycocyanin (PC) is a Spirulina extract with antioxidant, antiinflammatory, and radical scavenging properties. However, whether PC has positive effect on goat oocytes IVM or developmental competence after vitrification is still unknown. In this study, we found that first polar body extrusion (n = 293), cumulus expansion index (n = 269), and parthenogenetic blastocyst formation (n = 281) were facilitated by adding 30 μg/mL PC to the oocyte maturation medium when compared with the control groups and that supplemented with 3, 10, 100 or 300 μg/mL PC (P < 0.05). Although PC supplementation did not affect spindle formation or chromosome alignment (n = 115), it facilitated or improved cortical granules migration (n = 46, P < 0.05), mitochondria distribution (n = 39, P < 0.05), and mitochondrial membrane potential (n = 46, P < 10-4). Meanwhile, supplementation with 30 μg/mL PC in the maturation medium could significantly inhibit the reactive oxygen species accumulation (n = 65, P < 10-4), and cell apoptosis (n = 42, P < 0.05). In addition, PC increased the oocyte mRNA levels of GPX4 (P < 0.01), and decreased the mRNA and protein levels of BAX (P < 0.01). Next, we investigated the effect of PC supplementation in the vitrification solution on oocyte cryopreservation. When compared with the those equilibrate in the vitrification solution without PC, recovered oocytes in the 30 μg/mL PC group showed higher ratios of normal morphology (n = 85, P < 0.05), survival (n = 85, P < 0.05), first polar body extrusion (n = 62, P < 0.05), and parthenogenetic blastocyst formation (n = 107, P < 0.05). Meanwhile, PC supplementation of the vitrification solution increased oocyte mitochondrial membrane potential (n = 53, P < 0.05), decreased the reactive oxygen species accumulation (n = 73, P < 0.05), promoted mitochondria distribution (n = 58, P < 0.05), and inhibited apoptosis (n = 46, P < 10-3). Collectively, our findings suggest that PC improves goat oocyte IVM and vitrification by reducing oxidative stress and early apoptosis, which providing a novel strategy for livestock gamete preservation and utilization.
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Affiliation(s)
- Xing-Yue Wang
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia, PR China
| | - Yang Gao
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia, PR China
| | - Hao-Ran Liu
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia, PR China
| | - Teng Wang
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia, PR China
| | - Meng-Lei Feng
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia, PR China
| | - Fang-Rui Xue
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia, PR China
| | - Kang Ding
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia, PR China
| | - Qi Yang
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia, PR China
| | - Zhao-Yu Jiang
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia, PR China
| | - Dui Sun
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia, PR China
| | - Chun-Ru Song
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia, PR China
| | - Xiao-Jie Zhang
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia, PR China
| | - Cheng-Guang Liang
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia, PR China.
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Wu JS, Gong S, Zhang M, Ma RJ, Wang HL, Luo MJ, He N, Tan JH. Role and action mechanisms of miR-149 and miR-31 in regulating function of pig cumulus cells and oocytes. Theriogenology 2024; 220:84-95. [PMID: 38490113 DOI: 10.1016/j.theriogenology.2024.03.006] [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] [Received: 01/10/2024] [Revised: 03/06/2024] [Accepted: 03/10/2024] [Indexed: 03/17/2024]
Abstract
Understanding the mechanisms for oocyte maturation and optimizing the protocols for in vitro maturation (IVM) are greatly important for improving developmental potential of IVM oocytes. The miRNAs expressed in cumulus cells (CCs) play important roles in oocyte maturation and may be used as markers for selection of competent oocytes/embryos. Although a recent study from our group identified several new CCs-expressed miRNAs that regulate cumulus expansion (CE) and CC apoptosis (CCA) in mouse oocytes, validation of these findings and further investigation of mechanisms of action in other model species was essential before wider applications. By using both in vitro and in vivo pig oocyte models with significant differences in CE, CCA and developmental potential, the present study validated that miR-149 and miR-31 improved CE and developmental potential while suppressing CCA of pig oocytes. We demonstrated that miR-149 and miR-31 targeted SMAD family member 6 (SMAD6) and transforming growth factor β2 (TGFB2), respectively, in the transforming growth factor-β (TGF-β) signaling. Furthermore, both miR-149 and miR-31 increased CE and decreased CCA via activating SMAD family member 2 (SMAD2) and increasing the expression of SMAD2 and SMAD family member 4. In conclusion, the present results show that miR-149 and miR-31 improved CE and developmental potential while suppressing CCA of pig oocytes by activating the TGF-β signaling, suggesting that they might be used as markers for pig oocyte quality.
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Affiliation(s)
- Jia-Shun Wu
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City, 271018, PR China
| | - Shuai Gong
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City, 271018, PR China
| | - Min Zhang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City, 271018, PR China
| | - Rui-Jie Ma
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City, 271018, PR China
| | - Hui-Li Wang
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, PR China
| | - Ming-Jiu Luo
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City, 271018, PR China
| | - Nan He
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City, 271018, PR China.
| | - Jing-He Tan
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City, 271018, PR China.
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Zhao B, Li H, Zhang H, Lan X, Ren X, Zhang L, Ma H, Zhang Y, Wang Y. Inhibition of HSP90AA1 induces abnormalities in bovine oocyte maturation and embryonic development. Reproduction 2024; 167:e230411. [PMID: 38471304 DOI: 10.1530/rep-23-0411] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Accepted: 03/12/2024] [Indexed: 03/14/2024]
Abstract
In brief HSP90AA1 is a ubiquitous molecular chaperone that can resist cellular stress, such as oxidative stress and apoptosis, and mediate the efficacy and protein folding of normal cells during heat stress, as well as many other functions. This study further reveals the role of HSP90AA1 in bovine oocyte maturation and early embryonic development. Abstract HSP90AA1, a highly abundant and ubiquitous molecular chaperone, plays important roles in various cellular processes including cell cycle control, cell survival, and hormone signaling pathways. In this study, we investigated the functions of HSP90AA1 in bovine oocyte and early embryo development. We found that HSP90AA1 was expressed at all stages of development, but was mainly located in the cytoplasm, with a small amount distributed in the nucleus. We then evaluated the effect of HSP90AA1 on the in vitro maturation of bovine oocytes using tanespimycin (17-AAG), a highly selective inhibitor of HSP90AA1. The results showed that inhibition of HSP90AA1 decreased nuclear and cytoplasmic maturation of oocytes, disrupted spindle assembly and chromosome distribution, significantly increased acetylation levels of α-tubulin in oocytes and affected epigenetic modifications (H3K27me3 and H3K27ac). In addition, H3K9me3 was increased at various stages during early embryo development. Finally, the impact of HSP90AA1 on early embryo development was explored. The results showed that inhibition of HSP90AA1 reduced the cleavage and blastocyst formation rates, while increasing the fragmentation rate and decreasing blastocyst quality. In conclusion, HSP90AA1 plays a crucial role in bovine oocyte maturation as well as early embryo development.
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Affiliation(s)
- Baobao Zhao
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
- Key Laboratory of Animal Biotechnology, Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling, Shaanxi, PR China
| | - Heqiang Li
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
- Key Laboratory of Animal Biotechnology, Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling, Shaanxi, PR China
| | - Han Zhang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
- Key Laboratory of Animal Biotechnology, Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling, Shaanxi, PR China
| | - Xinrui Lan
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
- Key Laboratory of Animal Biotechnology, Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling, Shaanxi, PR China
| | - Xingchen Ren
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
- Key Laboratory of Animal Biotechnology, Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling, Shaanxi, PR China
| | - Liangyi Zhang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
- Key Laboratory of Animal Biotechnology, Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling, Shaanxi, PR China
| | - Huiming Ma
- Key Laboratory of Fertility Preservation and Maintenance (Ministry of Education), Ningxia Medical University, Yinchuan, Ningxia, China
| | - Yong Zhang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
- Key Laboratory of Animal Biotechnology, Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling, Shaanxi, PR China
| | - Yongsheng Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
- Key Laboratory of Animal Biotechnology, Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling, Shaanxi, PR China
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Guo F, Wang L, Chen Y, Zhu H, Dai X, Zhang X. Nicotinamide Mononucleotide improves oocyte maturation of mice with type 1 diabetes. Nutr Diabetes 2024; 14:23. [PMID: 38653987 DOI: 10.1038/s41387-024-00280-8] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 04/08/2024] [Accepted: 04/10/2024] [Indexed: 04/25/2024] Open
Abstract
BACKGROUND The number of patients with type 1 diabetes rises rapidly around the world in recent years. Maternal diabetes has a detrimental effect on reproductive outcomes due to decreased oocyte quality. However, the strategies to improve the oocyte quality and artificial reproductive technology (ART) efficiency of infertile females suffering from diabetes have not been fully studied. In this study, we aimed to examine the effects of nicotinamide mononucleotide (NMN) on oocyte maturation of mouse with type 1 diabetes mouse and explore the underlying mechanisms of NMN's effect. METHODS Streptozotocin (STZ) was used to establish the mouse models with type 1 diabetes. The successful establishment of the models was confirmed by the results of body weight test, fasting blood glucose test and haematoxylin and eosin (H&E) staining. The in vitro maturation (IVM) rate of oocytes from diabetic mice was examined. Immunofluorescence staining (IF) was performed to examine the reactive oxygen species (ROS) level, spindle/chromosome structure, mitochondrial function, actin dynamics, DNA damage and histone modification of oocytes, which are potential factors affecting the oocyte quality. The quantitative reverse transcription PCR (RT-qPCR) was used to detect the mRNA levels of Sod1, Opa1, Mfn2, Drp1, Sirt1 and Sirt3 in oocytes. RESULTS The NMN supplementation increased the oocyte maturation rate of the mice with diabetes. Furthermore, NMN supplementation improved the oocyte quality by rescuing the actin dynamics, reversing meiotic defects, improving the mitochondrial function, reducing ROS level, suppressing DNA damage and restoring changes in histone modifications of oocytes collected from the mice with diabetes. CONCLUSION NMN could improve the maturation rate and quality of oocytes in STZ-induced diabetic mice, which provides a significant clue for the treatment of infertility of the patients with diabetes.
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Affiliation(s)
- Fucheng Guo
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, First Hospital of Jilin University, Changchun, China
- National-Local Joint Engineering Laboratory of Animal Models for Human Disease, First Hospital of Jilin University, Changchun, China
| | - Luyao Wang
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, First Hospital of Jilin University, Changchun, China
- National-Local Joint Engineering Laboratory of Animal Models for Human Disease, First Hospital of Jilin University, Changchun, China
| | - Yurong Chen
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, First Hospital of Jilin University, Changchun, China
- National-Local Joint Engineering Laboratory of Animal Models for Human Disease, First Hospital of Jilin University, Changchun, China
| | - Haibo Zhu
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, First Hospital of Jilin University, Changchun, China
- National-Local Joint Engineering Laboratory of Animal Models for Human Disease, First Hospital of Jilin University, Changchun, China
- Center of Reproductive Medicine & Center of Prenatal Diagnosis, First Hospital of Jilin University, Changchun, China
| | - Xiangpeng Dai
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, First Hospital of Jilin University, Changchun, China.
- National-Local Joint Engineering Laboratory of Animal Models for Human Disease, First Hospital of Jilin University, Changchun, China.
| | - Xiaoling Zhang
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, First Hospital of Jilin University, Changchun, China.
- National-Local Joint Engineering Laboratory of Animal Models for Human Disease, First Hospital of Jilin University, Changchun, China.
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Biswas D, Yoon JD, Mishra B, Hyun SH. Epigen enhances the developmental potential of in vitro fertilized embryos by improving cytoplasmic maturation. Theriogenology 2024; 218:16-25. [PMID: 38290231 DOI: 10.1016/j.theriogenology.2024.01.020] [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] [Received: 09/09/2023] [Revised: 01/16/2024] [Accepted: 01/16/2024] [Indexed: 02/01/2024]
Abstract
Numerous growth factors contribute to oocyte maturation and embryonic development in vivo; however, only a few are understood. One such factor is epigen, a new member of the epidermal growth factor (EGF) family that is secreted by the granulosa cells of immature oocytes. We hypothesized that epigen may play a role in oocyte maturation, specifically in the nuclear and cytoplasmic aspects. This study aimed to investigate the effects of epigen on porcine oocyte maturation and embryo development in vitro. In this study, three different concentrations of epigen (3, 6, and 30 ng/mL) were added to tissue culture medium-199 (TCM-199) during in vitro maturation of porcine oocytes. A control group that did not receive epigen supplementation was also included. Mature porcine oocytes were fertilized, and the resulting zygotes were cultured until day 7. The levels of intracellular glutathione (GSH) and reactive oxygen species (ROS) were measured in the in vitro matured oocytes. At the same time, the expression patterns of genes related to apoptosis were detected in day 7 blastocysts (BLs) using real-time quantitative PCR Apoptosis was detected by annexin-V assays in mature oocytes. Data were analyzed using ANOVA and Duncan's test on SPSS, and results are presented as mean ± SEM. The group that received 6 ng/mL epigen had a significantly lower rate of germinal vesicle breakdown (GVBD) than the control group without affecting the nuclear maturation among the experimental groups. Among the treatment groups, the 6 ng/mL epigen group showed significantly higher levels of intracellular GSH and lower ROS production. Supplementation with 6 ng/mL epigen significantly improved blastocyst (BL) formation rates compared to those in the control and 3 ng/mL groups. Additionally, the blastocyst expansion rate was significantly higher with epigen supplementation (6 ng/mL). In the fertilization experiment, the group supplemented with 6 ng/mL epigen exhibited significantly higher levels of monospermy and fertilization efficiency and lower levels of polyspermy than the control group. This study indicated that adding epigen at a concentration of 6 ng/mL can significantly enhance the developmental potential of porcine oocytes fertilized in vitro. Specifically, the study found that epigen improves cytoplasmic maturation, which helps prevent polyspermy and emulates monospermic penetration.
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Affiliation(s)
- Dibyendu Biswas
- Institute for Stem Cell and Regenerative Medicine (ISCRM), College of Veterinary Medicine, Chungbuk National University, Cheongju, 28644, Republic of Korea; Laboratory of Veterinary Embryology and Biotechnology (VETEMBIO), College of Veterinary Medicine, Chungbuk National University, Cheongju, 28644, Republic of Korea; Department of Medicine, Surgery and Obstetrics, Faculty of Animal Science and Veterinary Medicine, Patuakhali Science and Technology University, Barishal Campus, Barisal, 8210, Bangladesh
| | - Junchul David Yoon
- Institute for Stem Cell and Regenerative Medicine (ISCRM), College of Veterinary Medicine, Chungbuk National University, Cheongju, 28644, Republic of Korea; Laboratory of Veterinary Embryology and Biotechnology (VETEMBIO), College of Veterinary Medicine, Chungbuk National University, Cheongju, 28644, Republic of Korea
| | - Birendra Mishra
- Dept. of Human Nutrition, Food and Animal Sciences, College of Tropical Agriculture and Human Resources, University of Hawaii at Manoa, AgSci 216, 1955 East-West Rd, Honolulu, HI, 96822, USA
| | - Sang Hwan Hyun
- Institute for Stem Cell and Regenerative Medicine (ISCRM), College of Veterinary Medicine, Chungbuk National University, Cheongju, 28644, Republic of Korea; Laboratory of Veterinary Embryology and Biotechnology (VETEMBIO), College of Veterinary Medicine, Chungbuk National University, Cheongju, 28644, Republic of Korea.
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Alcantara da Silva JV, Ispada J, Nociti RP, da Fonseca Junior AM, de Lima CB, Dos Santos EC, Chiaratti MR, Milazzotto MP. The central role of pyruvate metabolism on the epigenetic maturation and transcriptional profile of bovine oocytes. Reproduction 2024; 167:e230181. [PMID: 38271822 DOI: 10.1530/rep-23-0181] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Accepted: 01/23/2024] [Indexed: 01/27/2024]
Abstract
In brief Pyruvate metabolism is one of the main metabolic pathways during oocyte maturation. This study demonstrates that pyruvate metabolism also regulates the epigenetic and molecular maturation in bovine oocytes. Abstract Pyruvate, the final product of glycolysis, undergoes conversion into acetyl-CoA within the mitochondria of oocytes, serving as a primary fuel source for the tricarboxylic acid (TCA) cycle. The citrate generated in the TCA cycle can be transported to the cytoplasm and converted back into acetyl-CoA. This acetyl-CoA can either fuel lipid synthesis or act as a substrate for histone acetylation. This study aimed to investigate how pyruvate metabolism influences lysine 9 histone 3 acetylation (H3K9ac) dynamics and RNA transcription in bovine oocytes during in vitro maturation (IVM). Bovine cumulus-oocyte complexes were cultured in vitro for 24 h, considering three experimental groups: Control (IVM medium only), DCA (IVM supplemented with sodium dichloroacetate, a stimulant of pyruvate oxidation into acetyl-CoA), or IA (IVM supplemented with sodium iodoacetate, a glycolysis inhibitor). The results revealed significant alterations in oocyte metabolism in both treatments, promoting the utilization of lipids as an energy source. These changes during IVM affected the dynamics of H3K9ac, subsequently influencing the oocyte's transcriptional activity. In the DCA and IA groups, a total of 148 and 356 differentially expressed genes were identified, respectively, compared to the control group. These findings suggest that modifications in pyruvate metabolism trigger the activation of metabolic pathways, particularly lipid metabolism, changing acetyl-CoA availability and H3K9ac levels, ultimately impacting the mRNA content of in vitro matured bovine oocytes.
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Affiliation(s)
- João Vitor Alcantara da Silva
- Laboratory of Embryonic Metabolism and Epigenetics, Center of Natural and Human Sciences, Federal University of ABC, Santo Andre, SP, Brazil
| | - Jessica Ispada
- Laboratory of Embryonic Metabolism and Epigenetics, Center of Natural and Human Sciences, Federal University of ABC, Santo Andre, SP, Brazil
| | - Ricardo Perecin Nociti
- Department of Veterinary Medicine, Faculty of Animal Sciences and Food Engineering, University of São Paulo, Pirassununga, SP, Brazil
| | - Aldcejam Martins da Fonseca Junior
- Laboratory of Embryonic Metabolism and Epigenetics, Center of Natural and Human Sciences, Federal University of ABC, Santo Andre, SP, Brazil
| | | | - Erika Cristina Dos Santos
- Laboratory of Embryonic Metabolism and Epigenetics, Center of Natural and Human Sciences, Federal University of ABC, Santo Andre, SP, Brazil
| | | | - Marcella Pecora Milazzotto
- Laboratory of Embryonic Metabolism and Epigenetics, Center of Natural and Human Sciences, Federal University of ABC, Santo Andre, SP, Brazil
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Jiao A, Sun J, Sun Z, Zhao Y, Han T, Zhang H, Gao Q. Effects of limonin on oxidative stress and early apoptosis in oocytes during in vitro maturation. Theriogenology 2024; 218:8-15. [PMID: 38290232 DOI: 10.1016/j.theriogenology.2024.01.025] [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] [Received: 10/28/2023] [Revised: 01/23/2024] [Accepted: 01/24/2024] [Indexed: 02/01/2024]
Abstract
To investigate the effects of limonin (Lim) on oxidative stress and early apoptosis in bovine oocytes during in vitro maturation (IVM), different concentrations of Lim (0, 10, 20, 50 μmol/L) were added to bovine IVM medium. Oocyte maturation rates and development 24 h after in vitro fertilization (IVF) were examined to determine the optimal Lim concentration. The optimal Lim concentration was added to the IVM medium, and 0 μmol/L Lim was used as the control. Immunofluorescence staining was used to detect the abnormal rate of spindle assembly, reactive oxygen species (ROS), glutathione (GSH), mitochondrial membrane potential (MMP) levels, mitochondrial distribution, and the fluorescence intensity of cathepsin B (CB)-active LC3 protein. RT‒qPCR was used to detect the mRNA expression levels of antioxidant-, apoptosis- and autophagy-related genes in oocytes. The total number of blastocysts and the proportion of apoptotic cells among blastocysts were detected. The results showed that the PBI ejection rate, cleavage rate and blastocyst rate of bovine oocytes in the 20 μmol/L Lim group were significantly higher than those in the control group (P < 0.05). Compared with those in the control group, ROS levels, abnormal mitochondrial distribution, the proportion of abnormal spindle assembly, CB activity and LC3 protein fluorescence intensity of oocytes in the 20 μmol/L Lim group were significantly decreased (P < 0.05), and GSH and MMP levels were significantly increased (P < 0.05). The expression of antioxidant genes (Prdx3, Prdx6, Sirt1) and antiapoptotic genes (Bcl-xl, Survivin) were significantly upregulated (P < 0.05), and the expression levels of proapoptotic genes (Caspase-4, BAX) and autophagy-related genes (LC3) were significantly downregulated (P < 0.05). The total number of cells among in vitro fertilized embryos was significantly increased (P < 0.05), and the apoptosis rate of blastocysts was significantly decreased (P < 0.05). Here, we show that Lim exerts positive effects on bovine oocyte IVM by regulating REDOX homeostasis, reducing spindle damage and enhancing mitochondrial function during IVM, thereby inhibiting oocyte apoptosis and autophagy.
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Affiliation(s)
- Anhui Jiao
- Engineering Research Center of North-East Cold Region Beef Cattle Science & Technology Innovation, Ministry of Education, Yanbian University, Yanji, 133002, China; College of Agriculture, Yanbian University, Yanji, 133002, China; Jilin Engineering Research Center of Yanbian Yellow Cattle Resources Reservation, Yanji, 133002, China
| | - Jingyu Sun
- Tianjin Limu Biotechnology Co., LTD., Tianjin, 300456, China
| | - Zhaoyang Sun
- Engineering Research Center of North-East Cold Region Beef Cattle Science & Technology Innovation, Ministry of Education, Yanbian University, Yanji, 133002, China; College of Agriculture, Yanbian University, Yanji, 133002, China; Jilin Engineering Research Center of Yanbian Yellow Cattle Resources Reservation, Yanji, 133002, China
| | - Yuhan Zhao
- Engineering Research Center of North-East Cold Region Beef Cattle Science & Technology Innovation, Ministry of Education, Yanbian University, Yanji, 133002, China; College of Agriculture, Yanbian University, Yanji, 133002, China; Jilin Engineering Research Center of Yanbian Yellow Cattle Resources Reservation, Yanji, 133002, China
| | - Tiancang Han
- Engineering Research Center of North-East Cold Region Beef Cattle Science & Technology Innovation, Ministry of Education, Yanbian University, Yanji, 133002, China; College of Agriculture, Yanbian University, Yanji, 133002, China; Jilin Engineering Research Center of Yanbian Yellow Cattle Resources Reservation, Yanji, 133002, China
| | - Hongbo Zhang
- Engineering Research Center of North-East Cold Region Beef Cattle Science & Technology Innovation, Ministry of Education, Yanbian University, Yanji, 133002, China; College of Agriculture, Yanbian University, Yanji, 133002, China; Jilin Engineering Research Center of Yanbian Yellow Cattle Resources Reservation, Yanji, 133002, China
| | - Qingshan Gao
- Engineering Research Center of North-East Cold Region Beef Cattle Science & Technology Innovation, Ministry of Education, Yanbian University, Yanji, 133002, China; College of Agriculture, Yanbian University, Yanji, 133002, China; Jilin Engineering Research Center of Yanbian Yellow Cattle Resources Reservation, Yanji, 133002, China.
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Lim ES, Lee SE, Park MJ, Han DH, Lee HB, Ryu B, Kim EY, Park SP. Piperine improves the quality of porcine oocytes by reducing oxidative stress. Free Radic Biol Med 2024; 213:1-10. [PMID: 38159890 DOI: 10.1016/j.freeradbiomed.2023.12.042] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 12/08/2023] [Accepted: 12/27/2023] [Indexed: 01/03/2024]
Abstract
Oxidative stress caused by light and high temperature arises during in vitro maturation (IVM), resulting in low-quality embryos compared with those obtained in vivo. To overcome this problem, we investigated the influence of piperine (PIP) treatment during maturation of porcine oocytes on subsequent embryo development in vitro. Porcine oocytes were cultured in IVM medium supplemented with 0, 50, 100, 200, or 400 μM PIP. After parthenogenetic activation, the blastocyst (BL) formation was significantly higher and the apoptosis rate was significantly lower using 200 μM PIP-treated oocytes (200 PIP). In the 200 PIP group, the level of reactive oxygen species at the metaphase II stage was decreased, accompanied by an increased level of glutathione and increased expression of antioxidant processes (Nrf2, CAT, HO-1, SOD1, and SOD2). Consistently, chromosome misalignment and aberrant spindle organization were alleviated and phosphorylated p44/42 mitogen-activated protein kinase activity was increased in the 200 PIP group. Expression of development-related (CDX2, NANOG, POU5F1, and SOX2), anti-apoptotic (BCL2L1 and BIRC5), and pro-apoptotic (BAK, FAS, and CASP3) processes was altered in the 200 PIP group. Ultimately, embryo development was improved in the 200 PIP group following somatic cell nuclear transfer. These findings suggest that PIP improves the quality of porcine oocytes by reducing oxidative stress, which inevitably arises via IVM. In-depth mechanistic studies of porcine oocytes will improve the efficiencies of assisted reproductive technologies.
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Affiliation(s)
- Eun-Seo Lim
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, 102 Jejudaehak-ro, Jeju, Jeju Special Self-Governing Province, 63243, South Korea; Stem Cell Research Center, Jeju National University, 102 Jejudaehak-ro, Jeju, Jeju Special Self-Governing Province, 63243, South Korea
| | - Seung-Eun Lee
- Department of Bio Medical Informatics, College of Applied Life Sciences, Jeju National University, 102 Jejudaehak-ro, Jeju, Jeju Special Self-Governing Province, 63243, South Korea; Cronex Co., 110 Hwangtalli-gil, Gangnae-myeon, Heungdeok-gu, Cheongju-si, Chungcheongbuk-do, 28174, South Korea
| | - Min-Jee Park
- Stem Cell Research Center, Jeju National University, 102 Jejudaehak-ro, Jeju, Jeju Special Self-Governing Province, 63243, South Korea
| | - Dong-Hun Han
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, 102 Jejudaehak-ro, Jeju, Jeju Special Self-Governing Province, 63243, South Korea; Stem Cell Research Center, Jeju National University, 102 Jejudaehak-ro, Jeju, Jeju Special Self-Governing Province, 63243, South Korea
| | - Han-Bi Lee
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, 102 Jejudaehak-ro, Jeju, Jeju Special Self-Governing Province, 63243, South Korea; Stem Cell Research Center, Jeju National University, 102 Jejudaehak-ro, Jeju, Jeju Special Self-Governing Province, 63243, South Korea
| | - Bokyeong Ryu
- Stem Cell Research Center, Jeju National University, 102 Jejudaehak-ro, Jeju, Jeju Special Self-Governing Province, 63243, South Korea; Department of Bio Medical Informatics, College of Applied Life Sciences, Jeju National University, 102 Jejudaehak-ro, Jeju, Jeju Special Self-Governing Province, 63243, South Korea
| | - Eun-Young Kim
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, 102 Jejudaehak-ro, Jeju, Jeju Special Self-Governing Province, 63243, South Korea; Stem Cell Research Center, Jeju National University, 102 Jejudaehak-ro, Jeju, Jeju Special Self-Governing Province, 63243, South Korea; Mirae Cell Bio, 1502 isbiz-tower 147, Seongsui-ro, Seongdong-gu, Seoul, 04795, South Korea
| | - Se-Pill Park
- Stem Cell Research Center, Jeju National University, 102 Jejudaehak-ro, Jeju, Jeju Special Self-Governing Province, 63243, South Korea; Department of Bio Medical Informatics, College of Applied Life Sciences, Jeju National University, 102 Jejudaehak-ro, Jeju, Jeju Special Self-Governing Province, 63243, South Korea; Mirae Cell Bio, 1502 isbiz-tower 147, Seongsui-ro, Seongdong-gu, Seoul, 04795, South Korea.
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10
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Cai L, Jeong YW, Hwang WS, Hyun SH. Optimization of human recombinant granulocyte-colony stimulating factor supplementation during in vitro production of porcine embryos to improve the efficiency of resource utilization of poor-quality cumulus-oocyte complexes. Theriogenology 2024; 216:93-102. [PMID: 38159389 DOI: 10.1016/j.theriogenology.2023.12.017] [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] [Received: 08/20/2023] [Revised: 12/11/2023] [Accepted: 12/12/2023] [Indexed: 01/03/2024]
Abstract
Granulocyte colony-stimulating factor (G-CSF), a pleiotropic cytokine, is secreted by the reproductive tract. Furthermore, our previous study indicated that human recombinant G-CSF (hrG-CSF) supplementation during porcine oocyte in vitro maturation (IVM) or during embryo in vitro culture (IVC) improved their quality and development potential when using cumulus-oocyte complexes (COCs) with more than three cumulus cell layers (CCL >3). Thus, in this study, we investigate the optimal conditions of hrG-CSF supplementation throughout the in vitro production (IVP: IVM + IVC) system to improve the embryo production efficiency of "poor-quality (CCL ≤3)" oocytes. COCs were classified into two groups according to the number of CCL (>3 and ≤3) and embryonic viability was analyzed after treatment with hrG-CSF during IVC. The mRNA transcription levels of G-CSF in COCs were compared based on their type and the period of IVM. Finally, developmental capacity and quality were evaluated after treatment with hrG-CSF for different periods of IVP. No marked effects on the developmental potential of embryos when using CCL ≤3 type COCs were observed after supplementing hrG-CSF only during IVC. Moreover, the mRNA transcription level of G-CSF increased gradually with IVM culture time and was higher in CCL ≤3 COCs than in >3. Supplementing hrG-CSF only during the IVM period resulted in the best embryo developmental potential, while supplementing hrG-CSF during the IVP period resulted in the best quality embryos, reflected in the increased total cell number and decreased apoptotic nuclei index of blastocysts. These findings indicate that "poor-quality" COCs may have a greater demand for G-CSF than "good-quality", meanwhile hrG-CSF supplementation throughout IVP improves resource utilization efficiency in poor-quality COCs.
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Affiliation(s)
- Lian Cai
- UAE Biotech Research Center, Al Wathba, 30310, Abu Dhabi, United Arab Emirates; Laboratory of Veterinary Embryology and Biotechnology (VETEMBIO), College of Veterinary Medicine, Chungbuk National University, Cheongju, 28644, Republic of Korea; School of Veterinary Biosecurity and Protection, Chungbuk National University, Cheongju, 28644, Republic of Korea
| | - Yeon-Woo Jeong
- UAE Biotech Research Center, Al Wathba, 30310, Abu Dhabi, United Arab Emirates
| | - Woo-Suk Hwang
- UAE Biotech Research Center, Al Wathba, 30310, Abu Dhabi, United Arab Emirates; Department of Biology, North-Eastern Federal University, Yakutsk, 67707, Sakha Republic, Russia.
| | - Sang-Hwan Hyun
- Laboratory of Veterinary Embryology and Biotechnology (VETEMBIO), College of Veterinary Medicine, Chungbuk National University, Cheongju, 28644, Republic of Korea; School of Veterinary Biosecurity and Protection, Chungbuk National University, Cheongju, 28644, Republic of Korea.
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11
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Marei WFA, Mohey-Elsaeed O, Pintelon I, Leroy JLMR. Risks of using mitoquinone during in vitro maturation and its potential protective effects against lipotoxicity-induced oocyte mitochondrial stress. J Assist Reprod Genet 2024; 41:371-383. [PMID: 38146030 PMCID: PMC10894804 DOI: 10.1007/s10815-023-02994-7] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 11/17/2023] [Indexed: 12/27/2023] Open
Abstract
PURPOSE Oxidative stress and mitochondrial dysfunction play central roles in reduced oocyte quality and infertility in obese patients. Mitochondria-targeted treatments containing co-enzyme Q10 such as mitoquinone (MitoQ) can increase mitochondrial antioxidative capacity; however, their safety and efficiency when supplemented to oocytes under lipotoxic conditions have not been described. METHODS We tested the effect of different concentrations of MitoQ or its cationic carrier (TPP) (0, 0.1, 0.5, 1.0 μM each) during bovine oocyte IVM. Then, we tested the protective capacity of MitoQ (0.1 μM) against palmitic acid (PA)-induced lipotoxicity and mitochondrial dysfunction in oocytes. RESULTS Exposure to MitoQ, or TPP only, at 1 μM significantly (P<0.05) reduced oocyte mitochondrial inner membrane potential (JC-1 staining) and resulted in reduced cleavage and blastocyst rates compared with solvent control. Lower concentrations of MitoQ or TPP had no effects on embryo development under control (PA-free) conditions. As expected, PA increased the levels of MMP and ROS in oocytes (CellROX staining) and reduced cleavage and blastocyst rates compared with the controls (P<0.05). These negative effects were ameliorated by 0.1 μM MitoQ. In contrast, 0.1 μM TPP alone had no protective effects. MitoQ also normalized the expression of HSP10 and TFAM, and partially normalized HSP60 in the produced blastocysts, indicating at least a partial alleviation of PA-induced mitochondrial stress. CONCLUSION Oocyte exposure to MitoQ may disturb mitochondrial bioenergetic functions and developmental capacity due to a TPP-induced cationic overload. A fine-tuned concentration of MitoQ can protect against lipotoxicity-induced mitochondrial stress during IVM and restore developmental competence and embryo quality.
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Affiliation(s)
- Waleed F A Marei
- Gamete Research Centre, Department of Veterinary Sciences, University of Antwerp, Antwerp, Belgium.
- Department of Theriogenology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt.
| | - Omnia Mohey-Elsaeed
- Department of Histology and Cytology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
- Laboratory of Cell Biology and Histology, University of Antwerp, Antwerp, Belgium
| | - Isabel Pintelon
- Laboratory of Cell Biology and Histology, University of Antwerp, Antwerp, Belgium
| | - Jo L M R Leroy
- Gamete Research Centre, Department of Veterinary Sciences, University of Antwerp, Antwerp, Belgium
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12
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Lee HB, Lee SE, Park MJ, Han DH, Lim ES, Ryu B, Kim EY, Park SP. Ellagic acid treatment during in vitro maturation of porcine oocytes improves development competence after parthenogenetic activation and somatic cell nuclear transfer. Theriogenology 2024; 215:214-223. [PMID: 38100993 DOI: 10.1016/j.theriogenology.2023.12.001] [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] [Received: 10/16/2023] [Revised: 11/30/2023] [Accepted: 12/01/2023] [Indexed: 12/17/2023]
Abstract
Ellagic acid (EA) is a natural polyphenol and a free radical scavenger with antioxidant properties. This study investigated the protective effects of EA during in vitro maturation (IVM) of porcine oocytes. To determine the optimal concentration, IVM medium was supplemented with various concentrations of EA. Treatment with 10 μM EA (10 EA) resulted in the highest cleavage rate, blastocyst formation rate, and total cell number per blastocyst and the lowest percentage of apoptotic cell in parthenogenetic blastocysts. In the 10 EA group, abnormal spindle and chromosome misalignment were rescued and the ratio of phosphorylated p44/42 to total p44/42 was increased. Furthermore, the reactive oxygen species and glutathione levels were significantly decreased and increased, respectively, and antioxidant genes (Nrf2, HO-1, CAT, and SOD1) were significantly upregulated in the 10 EA group. mRNA expression of developmental-related (CDX2, POU5F1, and SOX2) and anti-apoptotic (BCL2L1) genes was significantly upregulated in the 10 EA group, while mRNA expression of pro-apoptotic genes (BAK, FAS, and CASP3) was significantly downregulated. Ultimately, following somatic cell nuclear transfer, the blastocyst formation rate was significantly increased and the percentage of apoptotic cell in blastocysts was significantly decreased in the 10 EA group. In conclusion, addition of 10 EA to IVM medium improved oocyte maturation and the subsequent embryo development capacity through antioxidant mechanisms. These findings suggest that EA can enhance the efficiencies of assisted reproductive technologies.
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Affiliation(s)
- Han-Bi Lee
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, 102 Jejudaehak-ro, Jeju, Jeju Special Self-Governing Province, 63243, South Korea; Stem Cell Research Center, Jeju National University, 102 Jejudaehak-ro, Jeju, Jeju Special Self-Governing Province, 63243, South Korea
| | - Seung-Eun Lee
- Department of Bio Medical Informatic, College of Applied Life Sciences, Jeju National University, 102 Jejudaehak-ro, Jeju, Jeju Special Self-Governing Province, 63243, South Korea; Cronex Co., 110 Hwangtalli-gil, Gangnae-myeon, Heungdeok-gu, Cheongju-si, Chungcheongbuk-do, 28174, South Korea
| | - Min-Jee Park
- Stem Cell Research Center, Jeju National University, 102 Jejudaehak-ro, Jeju, Jeju Special Self-Governing Province, 63243, South Korea
| | - Dong-Hun Han
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, 102 Jejudaehak-ro, Jeju, Jeju Special Self-Governing Province, 63243, South Korea; Stem Cell Research Center, Jeju National University, 102 Jejudaehak-ro, Jeju, Jeju Special Self-Governing Province, 63243, South Korea
| | - Eun-Seo Lim
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, 102 Jejudaehak-ro, Jeju, Jeju Special Self-Governing Province, 63243, South Korea; Stem Cell Research Center, Jeju National University, 102 Jejudaehak-ro, Jeju, Jeju Special Self-Governing Province, 63243, South Korea
| | - Bokyeong Ryu
- Stem Cell Research Center, Jeju National University, 102 Jejudaehak-ro, Jeju, Jeju Special Self-Governing Province, 63243, South Korea; Department of Bio Medical Informatic, College of Applied Life Sciences, Jeju National University, 102 Jejudaehak-ro, Jeju, Jeju Special Self-Governing Province, 63243, South Korea
| | - Eun-Young Kim
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, 102 Jejudaehak-ro, Jeju, Jeju Special Self-Governing Province, 63243, South Korea; Stem Cell Research Center, Jeju National University, 102 Jejudaehak-ro, Jeju, Jeju Special Self-Governing Province, 63243, South Korea; Mirae Cell Bio, 1502 isbiz-tower 147, Seongsui-ro, Seongdong-gu, Seoul, 04795, South Korea
| | - Se-Pill Park
- Stem Cell Research Center, Jeju National University, 102 Jejudaehak-ro, Jeju, Jeju Special Self-Governing Province, 63243, South Korea; Department of Bio Medical Informatic, College of Applied Life Sciences, Jeju National University, 102 Jejudaehak-ro, Jeju, Jeju Special Self-Governing Province, 63243, South Korea; Mirae Cell Bio, 1502 isbiz-tower 147, Seongsui-ro, Seongdong-gu, Seoul, 04795, South Korea.
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13
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Khatun H, Yamanaka KI, Sugimura S. Antioxidant sericin averts the disruption of oocyte-follicular cell communication triggered by oxidative stress. Mol Hum Reprod 2024; 30:gaae001. [PMID: 38244573 DOI: 10.1093/molehr/gaae001] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 12/28/2023] [Indexed: 01/22/2024] Open
Abstract
Antioxidants are free radical scavengers that increase oocyte quality and improve female fertility by suppressing oxidative stress. However, the related mechanisms remain unclear. The present study was designed to examine whether a reduction of oxidative stress from using the antioxidant sericin led to expanded cumulus cell (CC)-oocyte communication and oocyte developmental acquisition in a bovine model. We found that cumulus-oocyte complexes (COCs) matured in the presence of sericin showed a significantly increased oocyte meiotic maturation rate (P < 0.01) and accelerated subsequent blastocyst formation, as more blastocysts were found at the hatched stage (P < 0.05) compared to that in the control group. In contrast to the control group, sericin suppressed H2O2 levels in COCs, resulting in a markedly enhanced CC-oocyte gap junction communication index and number of transzonal projections, which were preserved until 18 h of oocyte maturation. These findings indicate that sericin reduces disruption of oocyte-follicular cell communication induced by oxidative stress. Sericin consistently increased intra-oocyte glutathione (GSH) levels and reduced oocyte H2O2 levels (P < 0.05), both of which were ablated when GSH synthesis was inhibited by buthionine sulfoximide (an inhibitor of GSH synthesis). Furthermore, the inhibition of GSH synthesis counteracted the positive effects of sericin on subsequent embryo developmental competence (P < 0.01). Intra-oocyte GSH levels were positively associated with blastocyst development and quality. These outcomes demonstrate new perspectives for the improvement of oocyte quality in assisted reproductive technology and may contribute to developing treatment strategies for infertility and cancer.
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Affiliation(s)
- Hafiza Khatun
- Department of Biological Production, Tokyo University of Agriculture and Technology, Tokyo, Japan
- Department of Animal Science, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - Ken-Ichi Yamanaka
- Faculty of Agriculture, Saga University, Saga, Japan
- The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima, Japan
| | - Satoshi Sugimura
- Department of Biological Production, Tokyo University of Agriculture and Technology, Tokyo, Japan
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Rosa PMDS, Guedes PHE, Garcia JM, Oliveira CS. Cytoplasmic granules in bovine oocytes do not affect embryonic or fetal development. ZYGOTE 2024; 32:28-37. [PMID: 38047350 DOI: 10.1017/s0967199423000576] [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: 12/05/2023]
Abstract
Oocyte cytoplasmic evaluation is based on homogeneity and granular appearance. Our study investigated if a granular cytoplasm, highly heterogeneous, would affect oocyte competence in bovine. In two experiments, bovine cumulus-oocyte complexes (COCs) with homogeneous cytoplasm (control, CC) and granulated cytoplasm (granular, GC) were selected from a regular pool of COCs. Experiment 1 was performed with slaughterhouse ovaries, and Experiment 2 was carried out in Girolando COCs obtained from ovum pick-up. Granular oocytes had higher caspase 3 levels (66.17 ± 11.61 vs 172.08 ± 16.95, P < 0.01) and similar GAP junction activity (5.64 ± 0.45 vs 6.29 ± 0.29). ZAR1 relative mRNA amount was lower in granular oocytes (178.27 ± 151.63 vs 0.89 ± 0.89, P = 0.01) and no effect was detected for MATER, PPP2R1A, ENY2, IGF2R, and BMP15 genes. Despite molecular differences, no detrimental effect was detected on oocyte competence in GC oocytes. Cleavage (Experiment 1: 59.52 ± 7.21% vs 59.79 ± 6.10% and Experiment 2: 68.88 ± 4.82 vs 74.41 ± 5.89%) and blastocyst (Experiment 1: 29.28 ± 4.14% vs 23.15 ± 2.96% and Experiment 2: 21.11 ± 3.28% vs 21.02 ± 6.08%) rates were similar between CC and GC (Experiments 1 and 2, respectively). Post-transfer embryo development revealed that pregnancy (CC: 24.27 ± 9.70% vs GC: 26.31 ± 7.23%) and calving (23.68% vs 33.33%) rates and fetal growth were not affected by the presence of cytoplasmic granules. Our results demonstrated that oocytes with granular cytoplasm present equivalent efficiency for IVF and calf production compared with homogenous cytoplasm oocytes. This could be observed through similar cleavage, blastocyst rates, and fetal growth development. In addition to differences in oocyte gene expression related to oocyte quality, it seems not to affect oocyte developmental competence.
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Affiliation(s)
- Paola Maria da Silva Rosa
- Embrapa Dairy Cattle, 610 Eugenio do Nascimento Ave, Juiz de Fora, MG, Brazil36038-330
- Department of Preventive Veterinary Medicine and Animal Reproduction, São Paulo State University, Jaboticabal, SP14884-900, Brazil
| | | | - Joaquim Mansano Garcia
- Department of Preventive Veterinary Medicine and Animal Reproduction, São Paulo State University, Jaboticabal, SP14884-900, Brazil
| | - Clara Slade Oliveira
- Embrapa Dairy Cattle, 610 Eugenio do Nascimento Ave, Juiz de Fora, MG, Brazil36038-330
- Department of Preventive Veterinary Medicine and Animal Reproduction, São Paulo State University, Jaboticabal, SP14884-900, Brazil
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15
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Ji H, Zhang Q, Ding L, Chen R, Liu F, Li P. Structural and metabolic cumulus cell alteration affects oocyte quality in underweight women. ZYGOTE 2024; 32:77-86. [PMID: 38130161 DOI: 10.1017/s0967199423000588] [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: 12/23/2023]
Abstract
This study aimed to investigate the structural and metabolic changes in cumulus cells of underweight women and their effects on oocyte maturation and fertilization. The cytoplasmic ultrastructure was analyzed by electron microscopy, mitochondrial membrane potential by immunofluorescence, and mitochondrial DNA copy number by relative quantitative polymerase chain reaction. The expression of various proteins including the oxidative stress-derived product 4-hydroxynonenal (4-HNE) and autophagy and apoptosis markers such as Vps34, Atg-5, Beclin 1, Lc3-I, II, Bax, and Bcl-2 was assessed and compared between groups. Oocyte maturation and fertilization rates were lower in underweight women (P < 0.05), who presented with cumulus cells showing abnormal mitochondrial morphology and increased cell autophagy. Compared with the mitochondrial DNA copies of the control group, those of the underweight group increased but not significantly. The mitochondrial membrane potential was similar between the groups (P = 0.8). Vps34, Atg-5, Lc3-II, Bax, and Bcl-2 expression and 4-HNE levels were higher in the underweight group compared with the control group (P < 0.01); however, the Bax/Bcl-2 ratio was lower in the underweight group compared with the control group (P = 0.031). Additionally, Beclin 1 protein levels were higher in the underweight group compared with the control group but without statistical significance. In conclusion, malnutrition and other conditions in underweight women may adversely affect ovulation, and the development, and fertilization of oocytes resulting from changes to the intracellular structure of cumulus cells and metabolic processes. These changes may lead to reduced fertility or unsatisfactory reproduction outcomes in women.
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Affiliation(s)
- Hong Ji
- Department of Reproductive Medicine, Women and Children's Hospital, School of Medicine, Xiamen University, Zhenhai Road 10, 361003 Xiamen, Fujian Province, People's Republic of China
- Xiamen Key Laboratory of Reproduction and Genetics, Zhenhai Road 10, 361003, Xiamen, Fujian Province, People's Republic of China
| | - Qing Zhang
- Department of Reproductive Medicine, Women and Children's Hospital, School of Medicine, Xiamen University, Zhenhai Road 10, 361003 Xiamen, Fujian Province, People's Republic of China
- Xiamen Key Laboratory of Reproduction and Genetics, Zhenhai Road 10, 361003, Xiamen, Fujian Province, People's Republic of China
| | - Lu Ding
- Department of Reproductive Medicine, Women and Children's Hospital, School of Medicine, Xiamen University, Zhenhai Road 10, 361003 Xiamen, Fujian Province, People's Republic of China
- Xiamen Key Laboratory of Reproduction and Genetics, Zhenhai Road 10, 361003, Xiamen, Fujian Province, People's Republic of China
| | - Rongjuan Chen
- Department of Reproductive Medicine, Women and Children's Hospital, School of Medicine, Xiamen University, Zhenhai Road 10, 361003 Xiamen, Fujian Province, People's Republic of China
- Xiamen Key Laboratory of Reproduction and Genetics, Zhenhai Road 10, 361003, Xiamen, Fujian Province, People's Republic of China
| | - Fu Liu
- Department of Human Anatomy and Histoembryology, Xiamen Medical College, Guankou Middle Road 1999, 361023, Xiamen, Fujian Province, People's Republic of China
| | - Ping Li
- Department of Reproductive Medicine, Women and Children's Hospital, School of Medicine, Xiamen University, Zhenhai Road 10, 361003 Xiamen, Fujian Province, People's Republic of China
- Xiamen Key Laboratory of Reproduction and Genetics, Zhenhai Road 10, 361003, Xiamen, Fujian Province, People's Republic of China
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Conceição-Santos AL, Ferreira ACA, Sá NAR, Palomino GJQ, Silva AFB, Oliveira AC, Velarde JMDS, Celestino JJH, Rodrigues APR, Figueiredo JR. Anethole supplementation during in vitro maturation increases in vitro goat embryo production in a concentration-dependent manner. Theriogenology 2024; 215:78-85. [PMID: 38016304 DOI: 10.1016/j.theriogenology.2023.11.024] [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] [Received: 08/04/2023] [Revised: 11/17/2023] [Accepted: 11/17/2023] [Indexed: 11/30/2023]
Abstract
During in vitro maturation (IVM) cumulus-oocyte complexes (COCs) are exposed to conditions that can trigger oxidative stress, thus, reducing oocyte maturation and viability. Aiming to mitigate these detrimental conditions, the effects of IVM medium supplementation with anethole have been tested. Anethole, also known as trans-anethole (1-methoxy-4 [1-propenyl]-benzene), is a naturally occurring phenylpropanoid with various pharmacological properties, including antioxidant effects. However, no study has examined anethole effect on goat COCs during IVM. Thus, the aim of this study was to evaluate the effects of different anethole concentrations on oocyte maturation, oxidative stress, and in vitro development of caprine embryos after parthenogenetic activation. Goat COCs were selected and randomly distributed into the following treatments: TCM-199+ medium (control), or TCM-199+ medium supplemented with 30 μg/mL (AN30); 300 μg/mL (AN300) or 2000 μg/mL (AN2000) of anethole. After IVM, part of the COCs was chosen for oocyte viability and chromatin configuration, intracellular reactive oxygen species levels, and mitochondrial membrane potential assessment. Another part of COCs was parthenogenetically activated, and presumptive zygotes were cultured for 7 days. Results demonstrated that anethole at 30 μg/mL increased oocyte maturation and cleavage rates when compared to the other treatments (P < 0.05), as well as oocyte viability and in vitro embryo production when compared to the control treatment (P < 0.05). Additionally, treatment with anethole at 2000 μg/mL decreased oocyte nuclear maturation and cleavage rates when compared to other treatments (P < 0.05) and embryo production if compared to control and AN30 treatments (P < 0.05). Moreover, anethole at 2000 μg/mL increased mitochondrial membrane potential when compared to the other treatments (P < 0.05). In conclusion, anethole exerts a concentration-dependent effect during goat COCs IVM. For a more desirable outcome of oocyte viability and maturation, and in vitro embryo production, the use of anethole at 30 μg/mL is recommended.
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Affiliation(s)
- A L Conceição-Santos
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Faculty of Veterinary, State University of Ceará, Fortaleza, CE, Brazil
| | - A C A Ferreira
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Faculty of Veterinary, State University of Ceará, Fortaleza, CE, Brazil
| | - N A R Sá
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Faculty of Veterinary, State University of Ceará, Fortaleza, CE, Brazil
| | - G J Q Palomino
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Faculty of Veterinary, State University of Ceará, Fortaleza, CE, Brazil
| | - A F B Silva
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Faculty of Veterinary, State University of Ceará, Fortaleza, CE, Brazil
| | - A C Oliveira
- Superior Institute of Biomedical Science, State University of Ceará, Fortaleza, CE, Brazil
| | - J M D S Velarde
- Department of Animal Science, Center of Agrarian Sciences, Federal University of Sergipe, São Cristóvão, SE, Brazil
| | - J J H Celestino
- Institute of Health Sciences, University of International Integration of Afro-Brazilian Lusophony, Redenção, CE, Brazil
| | - A P R Rodrigues
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Faculty of Veterinary, State University of Ceará, Fortaleza, CE, Brazil
| | - J R Figueiredo
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Faculty of Veterinary, State University of Ceará, Fortaleza, CE, Brazil.
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17
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Wang Y, Shen P, Wang Y, Jia R, Chen M, Yan X, Li Z, Yang X, He H, Shi D, Lu F. Three-dimensional glass scaffolds improve the In Vitro maturation of porcine cumulus-oocyte complexes and subsequent embryonic development after parthenogenetic activation. Theriogenology 2024; 215:58-66. [PMID: 38008049 DOI: 10.1016/j.theriogenology.2023.11.011] [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] [Received: 07/02/2023] [Revised: 11/09/2023] [Accepted: 11/09/2023] [Indexed: 11/28/2023]
Abstract
In vitro maturation (IVM) methods for porcine oocytes are still deficient in achieving full developmental capacity, as the currently available oocyte in vitro culture systems still have limitations. In vitro embryo production must also improve the porcine oocyte IVM system to acquire oocytes with good developmental potential. Herein, we tested a three-dimensional (3D) glass scaffold culture system for porcine oocyte maturation. After 42 h, we matured porcine cumulus-oocyte complexes (COCs) on either two-dimensional glass dishes (2D-B), two-dimensional microdrops (2D-W), or 3D glass scaffolds. The 3D glass scaffolds were tested for porcine oocyte maturation and embryonic development. Among these culture methods, the extended morphology of the 3D group maintained a 3D structure better than the 2D-B and 2D-W groups, which had flat COCs that grew close to the bottom of the culture vessel. The COCs of the 3D group had a higher cumulus expansion index and higher first polar body extrusion rate, cleavage rate, and blastocyst rate of parthenogenetic embryos than the 2D-B group. In the 3D group, the cumulus-expansion-related gene HAS2 and anti-apoptotic gene Bcl-2 were significantly upregulated (p < 0.05), while the pro-apoptotic gene Caspase3 was significantly downregulated (p < 0.05). The blastocysts of the 3D group had a higher relative expression of Bcl-2, Oct4, and Nanog than the other two groups (p < 0.05). The 3D group also had a more uniform distribution of mitochondrial membrane potential and mitochondria (p < 0.05), and its cytoplasmic active oxygen species content was much lower than that in the 2D-B group (p < 0.05). These results show that 3D glass scaffolds dramatically increased porcine oocyte maturation and embryonic development after parthenogenetic activation, providing a suitable culture model for porcine oocytes.
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Affiliation(s)
- Yanxin Wang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, College of Animal Science and Technology, Guangxi University, 75 Xiuling Road, Nanning, 530005, China
| | - Penglei Shen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, College of Animal Science and Technology, Guangxi University, 75 Xiuling Road, Nanning, 530005, China
| | - Yun Wang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, College of Animal Science and Technology, Guangxi University, 75 Xiuling Road, Nanning, 530005, China
| | - Ruru Jia
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, College of Animal Science and Technology, Guangxi University, 75 Xiuling Road, Nanning, 530005, China
| | - Mengjia Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, College of Animal Science and Technology, Guangxi University, 75 Xiuling Road, Nanning, 530005, China
| | - Xi Yan
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, College of Animal Science and Technology, Guangxi University, 75 Xiuling Road, Nanning, 530005, China
| | - Zhengda Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, College of Animal Science and Technology, Guangxi University, 75 Xiuling Road, Nanning, 530005, China
| | - Xiaofen Yang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, College of Animal Science and Technology, Guangxi University, 75 Xiuling Road, Nanning, 530005, China
| | - Haining He
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, College of Animal Science and Technology, Guangxi University, 75 Xiuling Road, Nanning, 530005, China
| | - DeShun Shi
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, College of Animal Science and Technology, Guangxi University, 75 Xiuling Road, Nanning, 530005, China
| | - Fenghua Lu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, College of Animal Science and Technology, Guangxi University, 75 Xiuling Road, Nanning, 530005, China.
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18
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Yang B, An Y, Yang Y, Zhao Y, Yu K, Weng Y, Du C, Li H, Yu B. The ERβ-cAMP signaling pathway regulates estradiol-induced ovine oocyte meiotic arrest. Theriogenology 2024; 214:81-88. [PMID: 37862941 DOI: 10.1016/j.theriogenology.2023.10.009] [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] [Received: 06/08/2023] [Revised: 10/09/2023] [Accepted: 10/10/2023] [Indexed: 10/22/2023]
Abstract
Although 17β-estradiol (E2) and its receptors (ERs) are reported to play important roles in regulating oocyte maturation, the specific mechanism remains unclear. First, we performed immunohistochemistry analyses to determine the expression of the ERα and ERβ proteins in ovine ovarian tissue. Second, E2 (0.5 ng/mL and 1 μg/mL) were added to pre-IVM medium for 0 h, 1 h and 2 h. The effects of E2 (0.5 ng/mL and 1 μg/mL) on cyclic adenosine monophosphate (cAMP) level in cumulus-oocyte complexes (COCs) and on oocyte meiotic progression were evaluated by ELISA and DAPI staining respectively. Third, the effects of E2 on the gene and protein expression of ERα and ERβ in COCs were investigated by Western blotting and real-time PCR. Afterward, ERβ and cAMP regulators were added to the 2-h pretreatment medium with or without E2 (0.5 ng/mL) to explore the possible interactions among E2, cAMP and ERβ. The results showed that both ERα and ERβ proteins were expressed in ovine cumulus layers and oocytes. E2 significantly increased intra-COC cAMP levels, maintained oocyte meiotic arrest, and promoted ERβ transcript and protein expression. E2 treatment increased the cAMP concentration, which was enhanced by ERβ agonist treatment and remarkably attenuated by ERβ inhibitor treatment. Forskolin plus IBMX treatment increased ERβ protein expression in COCs (P < 0.05), and this was attenuated by Rp-cAMP treatment. In conclusion, E2 (0.5 ng/mL) increased intra-COC cAMP levels by promoting ERβ expression, thereby maintaining oocyte meiotic arrest. cAMP in COCs has a positive feedback effect on ERβ expression, which provides a novel explanation for the positive role of E2 in regulating ovine follicle development and oocyte maturation.
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Affiliation(s)
- Bingxue Yang
- College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot, 010018, PR China; Key Laboratory of Animal Embryo and Development Engineering of Autonomous Region Universities, Inner Mongolia Agricultural University, Hohhot, 010018, PR China
| | - Yang An
- Inner Mongolia People's Hospital, Hohhot, 010020, PR China
| | - Yanyan Yang
- Institute of Animal Husbandry, Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences, Hohhot, PR China
| | - Yufen Zhao
- College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot, 010018, PR China; Key Laboratory of Animal Embryo and Development Engineering of Autonomous Region Universities, Inner Mongolia Agricultural University, Hohhot, 010018, PR China
| | - Kai Yu
- College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot, 010018, PR China; Key Laboratory of Animal Embryo and Development Engineering of Autonomous Region Universities, Inner Mongolia Agricultural University, Hohhot, 010018, PR China
| | - Yu Weng
- College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot, 010018, PR China; Key Laboratory of Animal Embryo and Development Engineering of Autonomous Region Universities, Inner Mongolia Agricultural University, Hohhot, 010018, PR China
| | - Chenguang Du
- College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot, 010018, PR China; Key Laboratory of Animal Embryo and Development Engineering of Autonomous Region Universities, Inner Mongolia Agricultural University, Hohhot, 010018, PR China
| | - Haijun Li
- College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot, 010018, PR China; Key Laboratory of Animal Embryo and Development Engineering of Autonomous Region Universities, Inner Mongolia Agricultural University, Hohhot, 010018, PR China.
| | - Boyang Yu
- Basic Medical College, Inner Mongolia Medical University, Hohhot, 010110, PR China.
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19
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Cañón-Beltrán K, García-García RM, Cajas YN, Fierro N, Lorenzo PL, Arias-Álvarez M. Improvement of oocyte competence and in vitro oocyte maturation with EGF and IGF-I in Guinea pig model. Theriogenology 2024; 214:206-214. [PMID: 37907035 DOI: 10.1016/j.theriogenology.2023.10.029] [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] [Received: 07/27/2023] [Revised: 10/21/2023] [Accepted: 10/23/2023] [Indexed: 11/02/2023]
Abstract
In vitro maturation (IVM) system is an alternative method to superovulation protocols to obtain mature oocytes. Epidermal Growth Factor (EGF) and Insulin-like Growth Factor I (IGF-I) have been widely used in IVM medium in different species. Although the guinea pig is a valuable animal model for reproductive studies, IVM is rarely used. We aimed to establish a suitable in vitro production system using EGF and/or IGF-I during IVM to improve oocyte competence. Firstly, immunolocalization of EGF and IGF-I receptors in the ovary was assessed. An IVM dose-response experiment was performed with cumulus-oocyte complexes (COCs) supplemented with: 1) EGF [0, 10, 50, 100 ng/mL or 10% fetal calf serum (FCS)]; 2) IGF-I [0, 50, 100, 200 ng/mL or 10% FCS]; or 3) the concentrations of EGF and IGF-I which showed the best IVM index in the previous experiments, with or without Fetal Calf Serum (FCS). Cortical granule and mitochondria distribution patterns were determined in in vivo and in vitro-matured oocytes for the first time in this species. Apoptotic rate after IVM and oocyte competence by in vitro embryo development were evaluated. Immunohistochemistry results showed positive immunostaining of EGF and IGF receptors in corpus luteum, oocytes, granulosa and theca cells in follicles in all stages of development. Supplementation of IVM medium with 50 ng/mL EGF or 100 ng/mL IGF-I or their combination with FCS successfully led to oocyte nuclear and cytoplasmic maturation and reduced the apoptotic rate. Both growth factors improved oocyte competence during IVM in this species since early embryos were in vitro developed, showing better results when FCS was used in the IVM medium.
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Affiliation(s)
- Karina Cañón-Beltrán
- Department of Physiology, Veterinary Faculty, Complutense University of Madrid - UCM, 28040, Spain; Departamento de Ciencias Biológicas, Universidad Técnica Particular de Loja - UTPL, Loja, 11-01-608, Ecuador.
| | - Rosa M García-García
- Department of Physiology, Veterinary Faculty, Complutense University of Madrid - UCM, 28040, Spain
| | - Yulia N Cajas
- Laboratorio de Biotecnología de la Reproducción Animal, Facultad de Ciencias Agropecuarias, Universidad de Cuenca (UC), Cuenca, EC010205, Ecuador
| | - Natacha Fierro
- Departamento de Ciencias Biológicas, Universidad Técnica Particular de Loja - UTPL, Loja, 11-01-608, Ecuador
| | - Pedro L Lorenzo
- Department of Physiology, Veterinary Faculty, Complutense University of Madrid - UCM, 28040, Spain
| | - María Arias-Álvarez
- Department of Animal Production, Veterinary Faculty, Complutense University of Madrid - UCM, 28040, Spain.
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20
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Cheng M, Chen X, Han M, Luo X, Yu Y, Lv Y, Han Y, Cao L, Zhang J, Wang M, Jin Y. miR-155-5p improves oocyte maturation in porcine cumulus cells through connexin 43-mediated regulation of MPF activity. Theriogenology 2024; 214:124-133. [PMID: 37866301 DOI: 10.1016/j.theriogenology.2023.10.013] [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] [Received: 07/04/2023] [Revised: 09/21/2023] [Accepted: 10/12/2023] [Indexed: 10/24/2023]
Abstract
In this study, we aimed to investigate the effect of the expression of miR-155-5p and its target genes on oocyte maturation. We analyzed the expression of miR-155-5p and its target genes in cumulus cells and oocytes using quantitative real-time reverse-transcription polymerase chain reaction. Using carboxyfluorescein, porcine cumulus cells were transfected with mimics and inhibitors of ssc-miR-155-5p to induce in vitro maturation, and subsequently, cumulus expansion, oocyte maturation, and cleavage rate were measured. We found that miR-155-5p expression in cumulus cells at the metaphase II stage was significantly higher than that at the germinal vesicle (GV) stage, whereas Cx43 expression was significantly lower than that at the GV stage (P < 0.05). Compared with those in the negative control group, the cumulus diffusion area of cumulus oocyte complexes; oocyte maturation rate; cleavage rate; HAS2, PTGS2, CD44, PTX3, and TNFAIP6 expression in cumulus cells; and GDF9, BMP15, CyclinB1, and CDK1 expression in oocytes were significantly increased in the miR-155-5p mimics group (P < 0.05), whereas the mRNA and protein expression of CX43 were significantly decreased (P < 0.05). Compared with that in the negative control group, the protein expression of CyclinB1 and p-CDK1 (Thr14, Tyr15) in the miR-155-5p mimics group was significantly increased (P < 0.05). These results suggest that miR-155-5p regulates maturation promoting factor activity by targeting Cx43, which improves the in vitro maturation and cleavage rate of porcine oocytes.
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Affiliation(s)
- Mimi Cheng
- Yanbian University, Jilin, Yanji, 133000, China
| | - Xuan Chen
- Yanbian University, Jilin, Yanji, 133000, China
| | - Mingzi Han
- Animal Disease Prevention and Control Center of Yanbian Korean Autonomous Prefecture, Jilin, Yanji, 133000, China
| | - Xiaotong Luo
- Institute of Animal Biotechnology, Jilin Academy of Agricultural Sciences, Jilin, Gongzhuling, 136100, China
| | - Yongsheng Yu
- Institute of Animal Biotechnology, Jilin Academy of Agricultural Sciences, Jilin, Gongzhuling, 136100, China
| | - Yanqiu Lv
- Yanbian University, Jilin, Yanji, 133000, China
| | - Yue Han
- Yanbian University, Jilin, Yanji, 133000, China
| | - Lipeng Cao
- Yanbian University, Jilin, Yanji, 133000, China
| | | | | | - Yi Jin
- Yanbian University, Jilin, Yanji, 133000, China.
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21
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Castro B, Candelaria JI, Austin MM, Shuster CB, Gifford CA, Denicol AC, Hernandez Gifford JA. Low-dose lipopolysaccharide exposure during oocyte maturation disrupts early bovine embryonic development. Theriogenology 2024; 214:57-65. [PMID: 37857151 PMCID: PMC10841481 DOI: 10.1016/j.theriogenology.2023.10.010] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 10/09/2023] [Accepted: 10/10/2023] [Indexed: 10/21/2023]
Abstract
Gram-negative bacteria release of lipopolysaccharide (LPS) endotoxin elicits robust immune responses capable of disrupting normal ovarian function contributing to female infertility. However, effects of subclinical or non-detectable infections on oocyte competence and subsequent embryo development remain to be fully elucidated. The aim of this study was to investigate the effects of exposing bovine oocytes to low LPS doses on oocyte and embryo competence. Bovine oocytes were collected from slaughterhouse-derived ovaries and matured with vehicle-control or increasing doses of LPS (0.01, 0.1, and 1 μg/mL) for 21 h. Oocytes (n = 252) were evaluated for nuclear maturation. A set of embryos from LPS-matured oocytes (n = 300) were cultured for 8 d to evaluate day 3 cleavage rates and day 8 blastocyst rates along with blastocyst cell counts. A subset of oocytes (n = 153) was fertilized and cultured for time-lapse image capture and analysis of embryo development. Results demonstrate no significant treatment differences among treatment groups in percent of oocytes at germinal vesicle (GV; P = 0.90), germinal vesicle breakdown (GVBD; P = 0.13), meiosis I (MI; P = 0.26), or metaphase II (MII; P = 0.44). Likewise, treatment differences were not observed in cleavage rates (P = 0.97), or blastocyst rates (P = 0.88) evaluated via traditional microscopy. Treatment with LPS did not affect total blastocyst cell count (P = 0.68), as indicated by trophectoderm (P = 0.83), and inner cell mass (P = 0.21) cell counts. Time-lapse embryo evaluation demonstrated no differences among control or LPS matured oocytes in number of zygotes that did not cleave after fertilization (P = 0.84), or those that cleaved but arrested at the 2-cell stage (P = 0.50), 4-cell (P = 0.76), prior to morula (P = 0.76). However, embryos derived from oocytes challenged with 0.1 μg/mL LPS tended to have reduced development to the morula stage compared with vehicle-treated controls (P = 0.06). Additionally, the percentage of blastocysts derived from oocytes matured in 0.01 μg/mL LPS tended to decrease compared to vehicle-treated controls (11.38 and 25.45 %, respectively; P = 0.09). Similarly, the proportion of oocytes that developed to the blastocyst stage was greater in vehicle-treated controls (25.45 %) compared with embryos derived from oocytes matured in 0.1 and 1 μg/mL (5.92 and 6.55 %, respectively; P = 0.03) LPS. These data suggest LPS-matured oocytes that subsequently underwent in vitro fertilization, experienced decreased competence to develop to the blastocyst stage.
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Affiliation(s)
- B Castro
- Department of Animal and Range Sciences, New Mexico State University, Las Cruces, NM, 88003, USA
| | - J I Candelaria
- Department of Animal Science, University of California, Davis, CA, 95616, USA
| | - M M Austin
- Department of Animal and Range Sciences, New Mexico State University, Las Cruces, NM, 88003, USA
| | - C B Shuster
- Department of Biology, New Mexico State University, Las Cruces, NM, 88003, USA
| | - C A Gifford
- Extension Animal Sciences and Natural Resources, New Mexico State University, Las Cruces, NM, 88003, USA
| | - A C Denicol
- Department of Animal Science, University of California, Davis, CA, 95616, USA
| | - J A Hernandez Gifford
- Department of Animal and Range Sciences, New Mexico State University, Las Cruces, NM, 88003, USA.
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Luo ZB, Yang LH, Han SZ, Chang SY, Liu H, An ZY, Zhang XL, Quan BH, Yin XJ, Kang JD. Cyclophosphamide reduces gene transcriptional activity and embryo in vitro development by inhibiting NF-κB expression through decreasing AcH4K12. Chem Biol Interact 2024; 387:110806. [PMID: 37980972 DOI: 10.1016/j.cbi.2023.110806] [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] [Received: 09/27/2023] [Revised: 11/07/2023] [Accepted: 11/10/2023] [Indexed: 11/21/2023]
Abstract
Cyclophosphamide (CTX), a widely used chemotherapeutic agent for cancer treatment, has been associated with long-term toxicity and detrimental effects on oocytes and ovaries, resulting in female reproductive dysfunction. This study aimed to investigate the potential impact of CTX on in vitro maturation (IVM) injury of porcine oocytes and subsequent embryonic development, as well as its effects on epigenetic modification and gene activation during early embryonic development. The results demonstrated that CTX treatment caused aberrant spindle structure and mitochondrial dysfunction during oocyte maturation, inducing DNA damage and early apoptosis, which consequently disrupted meiotic maturation. Indeed, CTX significantly reduced the in vitro developmental capacity of porcine embryos, and induced DNA damage and apoptosis in in vitro fertilization (IVF) blastocysts. Importantly, CTX induced abnormal histone modification of AcH4K12 in early porcine embryos. Moreover, addition of LBH589 before zygotic genome activation (ZGA) effectively increased AcH4K12 levels and restored the protein expression of NF-κB, which can effectively enhance the in vitro developmental potential of IVF embryos. The DNA damage and apoptosis induced by CTX compromised the quality of the blastocysts, which were recovered by supplementation with LBH589. This restoration was accompanied by down-regulation of BAX mRNA expression and up-regulation of BCL2, POU5F1, SOX2 and SOD1 mRNA expression. These findings indicated that CTX caused abnormal histone modification of AcH4K12 in early porcine embryos and reduced the protein expression of NF-κB, a key regulator of early embryo development, which may block subsequent ZGA processes.
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Affiliation(s)
- Zhao-Bo Luo
- Department of Animal Science, College of Agriculture, Yanbian University, Yanji, Jilin, 133002, China
| | - Liu-Hui Yang
- Department of Animal Science, College of Agriculture, Yanbian University, Yanji, Jilin, 133002, China
| | - Sheng-Zhong Han
- Department of Animal Science, College of Agriculture, Yanbian University, Yanji, Jilin, 133002, China
| | - Shuang-Yan Chang
- Department of Animal Science, College of Agriculture, Yanbian University, Yanji, Jilin, 133002, China
| | - Hongye Liu
- Department of Animal Science, College of Agriculture, Yanbian University, Yanji, Jilin, 133002, China
| | - Zhi-Yong An
- Department of Animal Science, College of Agriculture, Yanbian University, Yanji, Jilin, 133002, China
| | - Xiu-Li Zhang
- Department of Animal Science, College of Agriculture, Yanbian University, Yanji, Jilin, 133002, China
| | - Biao-Hu Quan
- Department of Animal Science, College of Agriculture, Yanbian University, Yanji, Jilin, 133002, China; Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, Jilin, 133002, China
| | - Xi-Jun Yin
- Department of Animal Science, College of Agriculture, Yanbian University, Yanji, Jilin, 133002, China; Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, Jilin, 133002, China.
| | - Jin-Dan Kang
- Department of Animal Science, College of Agriculture, Yanbian University, Yanji, Jilin, 133002, China; Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, Jilin, 133002, China.
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23
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Gilchrist RB, Ho TM, De Vos M, Sanchez F, Romero S, Ledger WL, Anckaert E, Vuong LN, Smitz J. A fresh start for IVM: capacitating the oocyte for development using pre-IVM. Hum Reprod Update 2024; 30:3-25. [PMID: 37639630 DOI: 10.1093/humupd/dmad023] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 03/06/2023] [Revised: 06/08/2023] [Indexed: 08/31/2023] Open
Abstract
BACKGROUND While oocyte IVM is practiced sporadically it has not achieved widespread clinical practice globally. However, recently there have been some seminal advances in our understanding of basic aspects of oocyte biology and ovulation from animal studies that have led to novel approaches to IVM. A significant recent advance in IVM technology is the use of biphasic IVM approaches. These involve the collection of immature oocytes from small antral follicles from minimally stimulated patients/animals (without hCG-priming) and an ∼24 h pre-culture of oocytes in an advanced culture system ('pre-IVM') prior to IVM, followed by routine IVF procedures. If safe and efficacious, this novel procedure may stand to make a significant impact on human ART practices. OBJECTIVE AND RATIONALE The objectives of this review are to examine the major scientific advances in ovarian biology with a unique focus on the development of pre-IVM methodologies, to provide an insight into biphasic IVM procedures, and to report on outcomes from animal and clinical human data, including safety data. The potential future impact of biphasic IVM on ART practice is discussed. SEARCH METHODS Peer review original and review articles were selected from PubMed and Web of Science searches for this narrative review. Searches were performed using the following keywords: oocyte IVM, pre-IVM, biphasic IVM, CAPA-IVM, hCG-triggered/primed IVM, natural cycle IVF/M, ex-vivo IVM, OTO-IVM, oocyte maturation, meiotic competence, oocyte developmental competence, oocyte capacitation, follicle size, cumulus cell (CC), granulosa cell, COC, gap-junction communication, trans-zonal process, cAMP and IVM, cGMP and IVM, CNP and IVM, EGF-like peptide and IVM, minimal stimulation ART, PCOS. OUTCOMES Minimizing gonadotrophin use means IVM oocytes will be collected from small antral (pre-dominant) follicles containing oocytes that are still developing. Standard IVM yields suboptimal clinical outcomes using such oocytes, whereas pre-IVM aims to continue the oocyte's development ex vivo, prior to IVM. Pre-IVM achieves this by eliciting profound cellular changes in the oocyte's CCs, which continue to meet the oocyte's developmental needs during the pre-IVM phase. The literature contains 25 years of animal research on various pre-IVM and biphasic IVM procedures, which serves as a large knowledge base for new approaches to human IVM. A pre-IVM procedure based on c-type natriuretic peptide (named 'capacitation-IVM' (CAPA-IVM)) has undergone pre-clinical human safety and efficacy trials and its adoption into clinical practice resulted in healthy live birth rates not different from conventional IVF. WIDER IMPLICATIONS Over many decades, improvements in clinical IVM have been gradual and incremental but there has likely been a turning of the tide in the past few years, with landmark discoveries in animal oocyte biology finally making their way into clinical practice leading to improved outcomes for patients. Demonstration of favorable clinical results with CAPA-IVM, as the first clinically tested biphasic IVM system, has led to renewed interest in IVM as an alternative, low-intervention, low-cost, safe, patient-friendly ART approach, and especially for patients with PCOS. The same new approach is being used as part of fertility preservation in patients with cancer and holds promise for social oocyte freezing.
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Affiliation(s)
- Robert B Gilchrist
- Fertility & Research Centre, Discipline of Women's Health, School of Clinical Medicine, University of New South Wales Sydney, NSW, Australia
| | - Tuong M Ho
- IVFMD, My Duc Hospital, Ho Chi Minh City, Vietnam
| | - Michel De Vos
- Brussels IVF, UZ Brussel, Brussels, Belgium
- Follicle Biology Laboratory, UZ Brussel, Vrije Universiteit Brussel, Brussels, Belgium
| | - Flor Sanchez
- Centro de Estudios e Investigaciones en Biología y Medicina Reproductiva, Lima, Peru
| | - Sergio Romero
- Laboratory of Reproductive Biology and Fertility Preservation, Cayetano Heredia University (UPCH), Lima, Peru
- Centro de Fertilidad y Reproducción Asistida, Lima, Peru
| | - William L Ledger
- Fertility & Research Centre, Discipline of Women's Health, School of Clinical Medicine, University of New South Wales Sydney, NSW, Australia
- City Fertility, Global CHA IVF Partners, Sydney, NSW, Australia
| | - Ellen Anckaert
- Follicle Biology Laboratory, UZ Brussel, Vrije Universiteit Brussel, Brussels, Belgium
| | - Lan N Vuong
- Department of Obstetrics and Gynaecology, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Johan Smitz
- Follicle Biology Laboratory, UZ Brussel, Vrije Universiteit Brussel, Brussels, Belgium
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Sharma M, Punetha M, Saini S, Chaudhary S, Jinagal S, Thakur S, Kumar P, Kumar R, Sharma RK, Yadav PS, Kumar D. Mito-Q supplementation of in vitro maturation or in vitro culture medium improves maturation of buffalo oocytes and developmental competence of cloned embryos by reducing ROS production. Anim Reprod Sci 2024; 260:107382. [PMID: 38035499 DOI: 10.1016/j.anireprosci.2023.107382] [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] [Received: 08/14/2023] [Revised: 10/25/2023] [Accepted: 11/22/2023] [Indexed: 12/02/2023]
Abstract
Mito-Q is a well-known mitochondria-specific superoxide scavenger. To our knowledge, the effect of Mito-Q on buffalo oocyte maturation and developmental competency of cloned embryos has not been examined. To investigate the effects of Mito-Q on the in vitro maturation (IVM) of buffalo oocytes and the developmental competence of cloned embryos, different concentration of Mito-Q were supplemented with IVM (0, 0.1, 0.5, 1, 2 μM) and in vitro culture (IVC) medium (0, 0.1 μM). Supplementation of IVM medium with 0.1 μM Mito-Q significantly (P ≤ 0.05) increased the cumulus expansion, nuclear maturation, mitochondrial membrane potential (MMP) and antioxidants genes (GPX1 and SOD2) expression and effectively reduced ROS production leading to a significant improvement in the maturation rate of buffalo oocytes. Further, the supplementation of 0.1 μM Mito-Q in IVC medium promotes the cleavage and blastocyst rate significantly over the control. Mito-Q supplementation improves (P ≤ 0.05) MMP, antioxidant gene (GPX1) expression and reduced the ROS level and apoptosis related genes (caspase 9) expression in cloned blastocysts. In conclusion, the present study demonstrated that the supplementation of 0.1 μM Mito-Q in IVM and IVC media exerts a protective role against oxidative stress by reducing ROS production and improving MMP, fostering improved maturation of buffalo oocytes and enhanced developmental competence of cloned embryos. These findings contribute valuable insights into the optimization of assisted reproductive technologies protocols for buffalo breeding and potentially offer novel strategies to enhance reproductive outcomes in livestock species.
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Affiliation(s)
- Maninder Sharma
- Animal Physiology and Reproduction Division, ICAR-Central Institute for Research on Buffaloes, Hisar, 125001 Haryana, India; Animal Biotechnology Division, ICAR-National Dairy Research Institute, Karnal 132001, Haryana, India
| | - Meeti Punetha
- Animal Physiology and Reproduction Division, ICAR-Central Institute for Research on Buffaloes, Hisar, 125001 Haryana, India
| | - Sheetal Saini
- Animal Physiology and Reproduction Division, ICAR-Central Institute for Research on Buffaloes, Hisar, 125001 Haryana, India
| | - Suman Chaudhary
- Animal Physiology and Reproduction Division, ICAR-Central Institute for Research on Buffaloes, Hisar, 125001 Haryana, India
| | - Sujata Jinagal
- Animal Physiology and Reproduction Division, ICAR-Central Institute for Research on Buffaloes, Hisar, 125001 Haryana, India
| | - Swati Thakur
- Animal Physiology and Reproduction Division, ICAR-Central Institute for Research on Buffaloes, Hisar, 125001 Haryana, India
| | - Pradeep Kumar
- Animal Physiology and Reproduction Division, ICAR-Central Institute for Research on Buffaloes, Hisar, 125001 Haryana, India
| | - Rajesh Kumar
- Animal Physiology and Reproduction Division, ICAR-Central Institute for Research on Buffaloes, Hisar, 125001 Haryana, India
| | - R K Sharma
- Animal Physiology and Reproduction Division, ICAR-Central Institute for Research on Buffaloes, Hisar, 125001 Haryana, India
| | - P S Yadav
- Animal Physiology and Reproduction Division, ICAR-Central Institute for Research on Buffaloes, Hisar, 125001 Haryana, India.
| | - Dharmendra Kumar
- Animal Physiology and Reproduction Division, ICAR-Central Institute for Research on Buffaloes, Hisar, 125001 Haryana, India.
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Ezz MA, Takahashi M, Rivera RM, Balboula AZ. Cathepsin L regulates oocyte meiosis and preimplantation embryo development. Cell Prolif 2024; 57:e13526. [PMID: 37417221 PMCID: PMC10771118 DOI: 10.1111/cpr.13526] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 05/28/2023] [Accepted: 06/26/2023] [Indexed: 07/08/2023] Open
Abstract
Early embryonic loss, caused by reduced embryo developmental competence, is the major cause of subfertility in humans and animals. This embryo developmental competence is determined during oocyte maturation and the first embryo divisions. Therefore, it is essential to identify the underlying molecules regulating these critical developmental stages. Cathepsin L (CTSL), a lysosomal cysteine protease, is involved in regulating cell cycle progression, proliferation and invasion of different cell types. However, CTSL role in mammalian embryo development is unknown. Using bovine in vitro maturation and culture systems, we show that CTSL is a key regulator for embryo developmental competence. We employed a specific CTSL detection assay in live cells to show that CTSL activity correlates with meiotic progression and early embryo development. Inhibiting CTSL activity during oocyte maturation or early embryo development significantly impaired oocyte and embryo developmental competence as evidenced by lower cleavage, blastocyst and hatched blastocyst rates. Moreover, enhancing CTSL activity, using recombinant CTSL (rCTSL), during oocyte maturation or early embryo development significantly improved oocyte and embryo developmental competence. Importantly, rCTSL supplementation during oocyte maturation and early embryo development significantly improved the developmental competence of heat-shocked oocytes/embryos which are notoriously known for reduced quality. Altogether, these results provide novel evidence that CTSL plays a pivotal role in regulating oocyte meiosis and early embryonic development.
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Affiliation(s)
- Mohamed Aboul Ezz
- Department of Theriogenology, Faculty of Veterinary MedicineMansoura UniversityMansouraEgypt
- Division of Animal SciencesUniversity of MissouriColumbiaMissouriUSA
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Piechota S, Marchante M, Giovannini A, Paulsen B, Potts KS, Rockwell G, Aschenberger C, Noblett AD, Figueroa AB, Sanchez M, Barrachina F, Wiemer K, Guzman L, Belchin P, Pierson Smela M, Fortuna PRJ, Chatterjee P, Tran ND, Kelk DA, Forti M, Marcinyshyn S, Smith T, McCulloh DH, Fernandez-Gonzalez MJ, Abittan B, Ortiz S, Klein JU, Klatsky P, Ordonez-Perez D, Kramme CC. Human-induced pluripotent stem cell-derived ovarian support cell co-culture improves oocyte maturation in vitro after abbreviated gonadotropin stimulation. Hum Reprod 2023; 38:2456-2469. [PMID: 37815487 PMCID: PMC10694404 DOI: 10.1093/humrep/dead205] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 09/09/2023] [Indexed: 10/11/2023] Open
Abstract
STUDY QUESTION Can in vitro maturation (IVM) and developmental competence of human oocytes be improved by co-culture with ovarian support cells (OSCs) derived from human-induced pluripotent stem cells (hiPSCs)? SUMMARY ANSWER OSC-IVM significantly improves the rates of metaphase II (MII) formation and euploid Day 5 or 6 blastocyst formation, when compared to a commercially available IVM system. WHAT IS KNOWN ALREADY IVM has historically shown highly variable performance in maturing oocytes and generating oocytes with strong developmental capacity, while limited studies have shown a positive benefit of primary granulosa cell co-culture for IVM. We recently reported the development of OSCs generated from hiPSCs that recapitulate dynamic ovarian function in vitro. STUDY DESIGN, SIZE, DURATION The study was designed as a basic science study, using randomized sibling oocyte specimen allocation. Using pilot study data, a prospective sample size of 20 donors or at least 65 oocytes per condition were used for subsequent experiments. A total of 67 oocyte donors were recruited to undergo abbreviated gonadotropin stimulation with or without hCG triggers and retrieved cumulus-oocyte complexes (COCs) were allocated between the OSC-IVM or control conditions (fetal-like OSC (FOSC)-IVM or media-only IVM) in three independent experimental design formats. The total study duration was 1 April 2022 to 1 July 2023. PARTICIPANTS/MATERIALS, SETTING, METHODS Oocyte donors between the ages of 19 and 37 years were recruited for retrieval after informed consent, with assessment of anti-Mullerian hormone, antral follicle count, age, BMI and ovarian pathology used for inclusion and exclusion criteria. In experiment 1, 27 oocyte donors were recruited, in experiment 2, 23 oocyte donors were recruited, and in experiment 3, 17 oocyte donors and 3 sperm donors were recruited. The OSC-IVM culture condition was composed of 100 000 OSCs in suspension culture with hCG, recombinant FSH, androstenedione, and doxycycline supplementation. IVM controls lacked OSCs and contained either the same supplementation, FSH and hCG only (a commercial IVM control), or FOSCs with the same supplementation (Media control). Experiment 1 compared OSC-IVM, FOSC-IVM, and a Media control, while experiments 2 and 3 compared OSC-IVM and a commercial IVM control. Primary endpoints in the first two experiments were the MII formation (i.e. maturation) rate and morphological quality assessment. In the third experiment, the fertilization and embryo formation rates were assessed with genetic testing for aneuploidy and epigenetic quality in blastocysts. MAIN RESULTS AND THE ROLE OF CHANCE We observed a statistically significant improvement (∼1.5×) in maturation outcomes for oocytes that underwent IVM with OSCs compared to control Media-IVM and FOSC-IVM in experiment 1. More specifically, the OSC-IVM group yielded a MII formation rate of 68% ± 6.83% SEM versus 46% ± 8.51% SEM in the Media control (P = 0.02592, unpaired t-test). FOSC-IVM yielded a 51% ± 9.23% SEM MII formation rate which did not significantly differ from the media control (P = 0.77 unpaired t-test). Additionally, OSC-IVM yielded a statistically significant ∼1.6× higher average MII formation rate at 68% ± 6.74% when compared to 43% ± 7.90% in the commercially available IVM control condition (P = 0.0349, paired t-test) in experiment 2. Oocyte morphological quality between OSC-IVM and the controls did not significantly differ. In experiment 3, OSC-IVM oocytes demonstrated a statistically significant improvement in Day 5 or 6 euploid blastocyst formation per COC compared to the commercial IVM control (25% ± 7.47% vs 11% ± 3.82%, P = 0.0349 logistic regression). Also in experiment 3, the OSC-treated oocytes generated blastocysts with similar global and germline differentially methylated region epigenetic profiles compared commercial IVM controls or blastocysts after either conventional ovarian stimulation. LARGE SCALE DATA N/A. LIMITATIONS, REASONS FOR CAUTION While the findings of this study are compelling, the cohort size remains limited and was powered on preliminary pilot studies, and the basic research nature of the study limits generalizability compared to randomized control trials. Additionally, use of hCG-triggered cycles results in a heterogenous oocyte cohort, and potential differences in the underlying maturation state of oocytes pre-IVM may limit or bias findings. Further research is needed to clarify and characterize the precise mechanism of action of the OSC-IVM system. Further research is also needed to establish whether these embryos are capable of implantation and further development, a key indication of their clinical utility. WIDER IMPLICATIONS OF THE FINDINGS Together, these findings demonstrate a novel approach to IVM with broad applicability to modern ART practice. The controls used in this study are in line with and have produced similar to findings to those in the literature, and the outcome of this study supports findings from previous co-culture studies that found benefits of primary granulosa cells on IVM outcomes. The OSC-IVM system shows promise as a highly flexible IVM approach that can complement a broad range of stimulation styles and patient populations. Particularly for patients who cannot or prefer not to undergo conventional gonadotropin stimulation, OSC-IVM may present a viable path for obtaining developmentally competent, mature oocytes. STUDY FUNDING/COMPETING INTEREST(S) A.D.N., A.B.F., A.G., B.P., C.A., C.C.K., F.B., G.R., K.S.P., K.W., M.M., P.C., S.P., and M.-J.F.-G. are shareholders in the for-profit biotechnology company Gameto Inc. P.R.J.F. declares paid consultancy for Gameto Inc. P.C. also declares paid consultancy for the Scientific Advisory Board for Gameto Inc. D.H.M. has received consulting services from Granata Bio, Sanford Fertility and Reproductive Medicine, Gameto, and Buffalo IVF, and travel support from the Upper Egypt Assisted Reproduction Society. C.C.K., S.P., M.M., A.G., B.P., K.S.P., G.R., and A.D.N. are listed on a patent covering the use of OSCs for IVM: U.S. Provisional Patent Application No. 63/492,210. Additionally, C.C.K. and K.W. are listed on three patents covering the use of OSCs for IVM: U.S. Patent Application No. 17/846,725, U.S Patent Application No. 17/846,845, and International Patent Application No.: PCT/US2023/026012. C.C.K., M.P.S., and P.C. additionally are listed on three patents for the transcription factor-directed production of granulosa-like cells from stem cells: International Patent Application No.: PCT/US2023/065140, U.S. Provisional Application No. 63/326,640, and U.S. Provisional Application No. 63/444,108. The remaining authors have no conflicts of interest to declare.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Marta Sanchez
- Ruber Juan Bravo University Hospital, Eugin Group, Madrid, Spain
| | | | | | | | - Pedro Belchin
- Ruber Juan Bravo University Hospital, Eugin Group, Madrid, Spain
| | - Merrick Pierson Smela
- Wyss Institute, Harvard Medical School, Boston, MA, USA
- Department of Genetics, Harvard Medical School, Boston, MA, USA
| | - Patrick R J Fortuna
- Wyss Institute, Harvard Medical School, Boston, MA, USA
- Department of Genetics, Harvard Medical School, Boston, MA, USA
| | - Pranam Chatterjee
- Department of Biomedical Engineering, Duke University, Durham, NC, USA
- Department of Computer Science, Duke University, Durham, NC, USA
| | | | | | | | | | | | - David H McCulloh
- Gameto Inc., New York, NY, USA
- Biogenetics Corporation, Mountainside, NJ, USA
- Sperm and Embryo Bank of New York, New York, NY, USA
- Biogenetics Laboratory, Brooklyn, NY, USA
- ReproART, Georgian American Center for Reproductive Medicine, Tbilisi, GA, USA
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Wang H, Chen W, Shen P, Feng Y, Shi D, Lu F. Follistatin (FST) is expressed in buffalo (Bubalus bubalis) ovarian follicles and promotes oocyte maturation and early embryonic development. Reprod Domest Anim 2023; 58:1718-1731. [PMID: 37917549 DOI: 10.1111/rda.14490] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 09/29/2023] [Accepted: 10/02/2023] [Indexed: 11/04/2023]
Abstract
Follistatin (FST), a member of the transforming growth factor-β (TGF-β) superfamily, has been identified as an inhibitor of follicle-stimulating hormone. Previous studies showed that it plays an important role in animal reproduction. Therefore, this study aims to investigate its effect on the maturation of buffalo oocytes in vitro, and the underlying mechanism of FST affecting oocyte maturation was also explored in buffalo cumulus cells. Results showed that FST was enriched in the ovary and expressed at different stages of buffalo ovarian follicles as well as during oocyte maturation and early embryo development. The FST expression level was up-regulated in MII buffalo oocytes compared with the GV stage (p < .05). To study the effects of FST on buffalo oocytes' maturation and early embryonic development, we added the pcD3.1 skeleton vector and PCD3.1-EGFP-FST vector into the maturation fluid of buffalo oocytes, respectively. It was demonstrated that FST promoted the in vitro maturation rate of buffalo oocytes and the blastocyst rate of embryos cultured in vitro (p < .05). By interfering with FST expression, we discovered that FST in cumulus cells plays a crucial role in oocyte maturation. Interference with the FST expression during the buffalo oocyte maturation did not affect the first polar body rate of buffalo oocyte (p > .05). In contrast, the location of mitochondria in oocytes was abnormal, and the cumulus expansion area was reduced (p < .05). After parthenogenetic activation, the cleavage and blastocyst rates of the FST-interfered group were reduced (p < .05). Furthermore, RT-qPCR was performed to investigate further the underlying mechanism by which FST enhances oocyte maturation. We found that overexpression of FST could up-regulate the expression level of apoptosis suppressor gene Bcl-2 and TGF-β/SMAD pathway-related genes TGF-β, SMAD2, and SMAD3 (p < .05). In contrast, the expression levels of SMAD4 and pro-apoptotic gene BAX were significantly decreased (p < .05). The FST gene could affect buffalo oocyte maturation by regulating the oocyte mitochondria integrity, the cumulus expansion, cumulus cell apoptosis, and the expression levels of TGF-β/SMAD pathway-related genes.
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Affiliation(s)
- Haoxin Wang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning, Guangxi, China
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Weili Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning, Guangxi, China
| | - Penglei Shen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning, Guangxi, China
| | - Yun Feng
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning, Guangxi, China
| | - Deshun Shi
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning, Guangxi, China
| | - Fenghua Lu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning, Guangxi, China
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Bicici E, Satilmis F, Bodu M, Demirel MA, Karakas Alkan K, Alkan H. Effect of putrescine supplementation to in vitro maturation medium on embryo development and quality in cattle. Anim Biotechnol 2023; 34:3887-3896. [PMID: 37466367 DOI: 10.1080/10495398.2023.2236660] [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: 07/20/2023]
Abstract
This study aimed to investigate the effect of putrescine supplementation to maturation medium during in vitro embryo production in cattle on maturation and embryo development/quality. Oocytes obtained from the ovaries of Holstein cattle were used in the study. Obtained cumulus-oocyte complexes were evaluated according to morphological structure, cytoplasmic features, and cumulus cell number, and only Category-I ones were used in the study. Before the in vitro maturation step, oocytes were randomly divided into two groups. In the first group (Putrescine group, n = 159), 0.5 mM putrescine was added to the maturation medium before in vitro maturation. No addition was applied to the maturation medium of the second group (Control group, n = 149). Cumulus expansion degrees of oocytes following maturation (Grade I: poor, Grade II: partial, and Grade III: complete) were determined. In addition, the meiosis of oocytes after maturation was evaluated by differential staining. Then the oocytes were left for fertilization with sperm and finally, possible zygotes were transferred to the culture medium. After determining the developmental stages and quality of the embryos after in vitro culture, only the embryos at the blastocyst stage were stained with the differential staining method to determine the cell numbers. When the cumulus expansion degrees of the groups were evaluated, the Grade III cumulus expansion rate in the putrescine group was higher than the control group (74.21% and 60.4%; respectively) and the Grade I expansion rate (11.95% and 26.17%; respectively) was found lower (p < .05). When the resumption of meiosis was evaluated according to the cumulus expansion degrees, it was determined that the rate of resumption of meiosis increased as the cumulus expansion increased. In addition, the cleavage rates of oocytes and reaching the blastocyst in the putrescine group were found to be higher than in the control group (p < .05). Moreover, inner cell mass, trophectoderm cells, and total cell counts were found to be higher in blastocysts obtained after the putrescine supplementation to the maturation medium compared to the control group (p < .05). As a result, it was determined that the putrescine supplementation to the maturation medium during in vitro embryo production in cattle increased the degree of cumulus expansion and the rate of resumption of meiosis. In addition, putrescine supplementation was thought to increase the rate of reaching the blastocyst of oocytes due to better cell development in embryos.
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Affiliation(s)
- Esra Bicici
- Department of Obstetrics and Gynecology, Selcuk University, Konya, Turkey
| | - Fatma Satilmis
- Department of Obstetrics and Gynecology, Selcuk University, Konya, Turkey
| | - Mustafa Bodu
- Department of Reproduction and Artificial Insemination, Selcuk University, Konya, Turkey
| | | | | | - Hasan Alkan
- Department of Obstetrics and Gynecology, Selcuk University, Konya, Turkey
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Mendes AF, Puelker RZ, Souza LFAD, Jacintho ARC, Dos Santos PH, Giometti IC, Firetti SM, Castilho ACDS, Zundt M, Membrive CMB, Castilho C. In vitro maturation in synthetic oviductal fluid increases gene expression associated with quality and lipid metabolism in bovine oocytes. ZYGOTE 2023; 31:582-587. [PMID: 37955189 DOI: 10.1017/s0967199423000473] [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: 11/14/2023]
Abstract
Traditionally, in vitro oocyte and embryo culture progresses through a series of varying culture medium. To investigate simplifying the in vitro production of bovine cumulus-oocyte complexes (COCs), this study used synthetic oviductal fluid (SOF) supplemented with conjugated linoleic acid (CLA). Special interest was placed on gene expression linked to lipid metabolism and oocyte maturation. COCs were matured in different media: Medium 199 (M199 group), M199 with 100 μM CLA (M199 + CLA group), SOF (SOF group), and SOF with 100 μM CLA (SOF + CLA group). COCs matured with SOF showed a higher relative abundance of mRNA of quality indicators gremlin 1 (GREM1) and prostaglandin-endoperoxide synthase 2 (PTGS2) in oocytes, and GREM1 in cumulus cells compared with in the M199 group. SOF medium COCs had a higher relative abundance of fatty acid desaturase 2 (FADS2) compared with the M199 group, which is essential for lipid metabolism in oocytes. Furthermore, the abundance of stearoyl-coenzyme A desaturase 1 (SCD1) in oocytes matured with SOF was not influenced by the addition of CLA, whereas the relative abundance of SCD1 was reduced in M199 medium with CLA. We concluded that maturation in SOF medium results in a greater abundance of genes linked to quality and lipidic metabolism in oocytes, regardless of the addition of CLA.
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Affiliation(s)
| | | | - Lilian Francisco Arantes de Souza
- University of Western São Paulo (UNOESTE), Presidente Prudente, São Paulo, Brazil
- Federal Rural University of Pernambuco (UFRPE), Recife, Pernambuco, Brazil
| | | | | | | | - Sheila Merlo Firetti
- University of Western São Paulo (UNOESTE), Presidente Prudente, São Paulo, Brazil
| | - Anthony César de Souza Castilho
- University of Western São Paulo (UNOESTE), Presidente Prudente, São Paulo, Brazil
- São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | - Marilice Zundt
- University of Western São Paulo (UNOESTE), Presidente Prudente, São Paulo, Brazil
| | | | - Caliê Castilho
- University of Western São Paulo (UNOESTE), Presidente Prudente, São Paulo, Brazil
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Ito K, Takae S, Nakamura K, Furuyama S, Nakajima M, Suzuki Y, Iwahata H, Sugishita Y, Horage Y, Suzuki N. The study of the efficiency of in vitro maturation of ovarian tissue oocytes in pediatric patients. J Assist Reprod Genet 2023; 40:2787-2797. [PMID: 37779181 PMCID: PMC10656375 DOI: 10.1007/s10815-023-02958-x] [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] [Received: 05/19/2023] [Accepted: 09/21/2023] [Indexed: 10/03/2023] Open
Abstract
PURPOSE Although recent in vitro maturation (IVM) studies in pediatric patients have demonstrated successful retrieval and maturation of oocytes, the studies included only a small number of premenarchal patients. In the present study, we examined the potential use of oocyte retrieval and maturation for pediatric patients who undergo ovarian tissue cryopreservation (OTC). METHODS We retrospectively examined the clinical records of pediatric patients who underwent OTC at our institution between October 2015 and December 2022. Data on the age, primary disease, menstrual history, pre-procedure chemotherapy, anti-Müllerian hormone (AMH) level, number of oocytes collected ex vivo from ovarian tissue, and number of mature oocytes from IVM were examined. RESULTS Data of 60 pediatric patients (aged 1 to 17 years) were included for analysis. Oocytes were retrieved from 36 patients; the oocytes of 18 of these patients could be cryopreserved. The IVM rate was significantly lower in the premenarchal patients than in the postmenarchal patients. The number of mature oocytes retrieved from IVM was higher in the no-chemotherapy group than in the chemotherapy group. A significant positive correlation was observed between the AMH level and the IVM outcomes. CONCLUSION Oocyte retrieval and maturation in pediatric patients undergoing OTC is particularly useful in those not receiving chemotherapy. In patients receiving chemotherapy, the AMH level may be useful for predicting the IVM outcome. Activation of the oocyte maturation process in vivo in pediatric patients and better understanding of the major regulators of oocyte maturation are necessary to improve the utility of the IVM procedure.
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Affiliation(s)
- Kaoru Ito
- Department of Obstetrics and Gynecology, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-Ku, Kawasaki, Kanagawa, 216-8511, Japan
| | - Seido Takae
- Department of Obstetrics and Gynecology, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-Ku, Kawasaki, Kanagawa, 216-8511, Japan
| | - Kentaro Nakamura
- Department of Obstetrics and Gynecology, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-Ku, Kawasaki, Kanagawa, 216-8511, Japan
| | - Sayako Furuyama
- Department of Obstetrics and Gynecology, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-Ku, Kawasaki, Kanagawa, 216-8511, Japan
| | - Mariko Nakajima
- Department of Obstetrics and Gynecology, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-Ku, Kawasaki, Kanagawa, 216-8511, Japan
| | - Yuki Suzuki
- Department of Obstetrics and Gynecology, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-Ku, Kawasaki, Kanagawa, 216-8511, Japan
| | - Hideyuki Iwahata
- Department of Obstetrics and Gynecology, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-Ku, Kawasaki, Kanagawa, 216-8511, Japan
| | - Yodo Sugishita
- Department of Obstetrics and Gynecology, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-Ku, Kawasaki, Kanagawa, 216-8511, Japan
| | - Yuki Horage
- Department of Obstetrics and Gynecology, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-Ku, Kawasaki, Kanagawa, 216-8511, Japan
| | - Nao Suzuki
- Department of Obstetrics and Gynecology, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-Ku, Kawasaki, Kanagawa, 216-8511, Japan.
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Spate LD, Yin J, Sammel L, Prather RS, Redel BK. Oocyte recovery after overnight ovary transport provides an alternative source of cumulus oocyte complexes that are competent to produce live piglets. Reprod Domest Anim 2023; 58:1770-1772. [PMID: 37873995 DOI: 10.1111/rda.14491] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Revised: 09/25/2023] [Accepted: 10/03/2023] [Indexed: 10/25/2023]
Abstract
COVID-19 impacted abattoirs worldwide. The processing lines became a hotspot for the spread of COVID-19 resulting in plant restructuring and ultimately a critical loss of pig material for research. Commercial sources of pig oocytes are available but are costly and companies were already operating at a maximum capacity for supplying the oocyte needs around the United States. Here, we provide an alternative source of oocytes that are competent to produce live, healthy piglets.
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Affiliation(s)
- Lee D Spate
- Division of Animal Sciences, University of Missouri, Columbia, Missouri, USA
- National Swine Resource and Research Center, University of Missouri, Columbia, Missouri, USA
| | - Jie Yin
- Sustainable Swine Resources LLC, Watertown, Wisconsin, USA
| | - Lauren Sammel
- Sustainable Swine Resources LLC, Watertown, Wisconsin, USA
| | - Randall S Prather
- Division of Animal Sciences, University of Missouri, Columbia, Missouri, USA
- National Swine Resource and Research Center, University of Missouri, Columbia, Missouri, USA
| | - Bethany K Redel
- USDA-ARS, Plant Genetics Research Unit, Columbia, Missouri, USA
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Das M, Son WY. In vitro maturation (IVM) of human immature oocytes: is it still relevant? Reprod Biol Endocrinol 2023; 21:110. [PMID: 37993914 PMCID: PMC10664544 DOI: 10.1186/s12958-023-01162-x] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 11/16/2023] [Indexed: 11/24/2023] Open
Abstract
In vitro maturation (IVM) of human immature oocytes has been shown to be a viable option for patients at risk of ovarian hyperstimulation syndrome (OHSS), those seeking urgent fertility preservation and in circumstances where controlled ovarian stimulation is not feasible. Moreover, IVM techniques can be combined with ovarian tissue cryobanking to increase the chances of conception in cancer survivors. The clinical applications of IVM in the field of reproductive medicine are rapidly expanding and the technique is now classified as non-experimental. In contrast to conventional IVF (in vitro fertilization), IVM offers several advantages, such as reduced gonadotropin stimulation, minimal risk of ovarian hyperstimulation syndrome (OHSS), reduced treatment times and lower costs. However, the technical expertise involved in performing IVM and its lower success rates compared to traditional IVF cycles, still pose significant challenges. Despite recent advances, such as innovative biphasic IVM systems, IVM is still an evolving technique and research is ongoing to refine protocols and identify techniques to improve its efficiency and effectiveness. A comprehensive understanding of the distinct mechanisms of oocyte maturation is crucial for obtaining more viable oocytes through in vitro methods, which will in turn lead to significantly improved success rates. In this review, the present state of human IVM programs and future research directions will be discussed, aiming to promote a better understanding of IVM and identify potential strategies to improve the overall efficiency and success rates of IVM programs, which will in turn lead to better clinical outcomes.
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Affiliation(s)
- Mausumi Das
- Department of Reproductive Medicine, Queen Charlotte and Hammersmith Hospitals, Imperial College Healthcare NHS Trust, London, UK
- Chelsea and Westminster Hospital NHS Foundation Trust, London, UK
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Yin YJ, Zhang YH, Wang Y, Jiang H, Zhang JB, Liang S, Yuan B. Ferulic acid ameliorates the quality of in vitro-aged bovine oocytes by suppressing oxidative stress and apoptosis. Aging (Albany NY) 2023; 15:12497-12512. [PMID: 37944258 PMCID: PMC10683616 DOI: 10.18632/aging.205193] [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] [Received: 08/07/2023] [Accepted: 10/08/2023] [Indexed: 11/12/2023]
Abstract
Ferulic acid (FA) is a well-known natural antioxidant that scavenges oxygen free radicals and alleviates oxidative stress. This study investigated the chemopreventive potential of FA against bovine oocyte quality decline during in vitro aging. The results showed that 5 μM FA supplementation decreased the abnormality rate of in vitro-aged bovine oocytes. In addition, FA supplementation effectively improved antioxidant capacity by removing excessive ROS and maintaining intracellular GSH levels and antioxidant enzyme activity. The mitochondrial activity, mitochondrial membrane potential and intracellular ATP levels in aged bovine oocytes were obviously enhanced by FA supplementation. Furthermore, FA supplementation reduced in vitro aging-induced DNA damage and maintained DNA stability in bovine oocytes. Moreover, sperm binding assay showed the number of sperm that bound to the zona pellucida on aged bovine oocytes was significantly higher in the FA supplemented group than in the Aged group. Therefore, FA is beneficial for maintaining in vitro-aged bovine oocyte quality and could become a potential antioxidant for preventing bovine oocyte in vitro aging during in vitro maturation.
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Affiliation(s)
- Yi-Jing Yin
- Department of Animals Sciences, College of Animal Sciences, Jilin University, Changchun, China
| | - Yong-Hong Zhang
- Department of Animals Sciences, College of Animal Sciences, Jilin University, Changchun, China
| | - Yu Wang
- Department of Animals Sciences, College of Animal Sciences, Jilin University, Changchun, China
| | - Hao Jiang
- Department of Animals Sciences, College of Animal Sciences, Jilin University, Changchun, China
| | - Jia-Bao Zhang
- Department of Animals Sciences, College of Animal Sciences, Jilin University, Changchun, China
| | - Shuang Liang
- Department of Animals Sciences, College of Animal Sciences, Jilin University, Changchun, China
| | - Bao Yuan
- Department of Animals Sciences, College of Animal Sciences, Jilin University, Changchun, China
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Momeni A, Haghpanah T, Nematollahi-Mahani SN, Ashourzadeh S, Eftekhar-Vaghefi SH. Comparing the effects of vitrification, before and after mouse oocyte in vitro maturation on developmental competence, changes in epigenetic regulators and stress oxidative response. Biochem Biophys Res Commun 2023; 679:179-190. [PMID: 37703761 DOI: 10.1016/j.bbrc.2023.09.005] [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] [Received: 06/25/2023] [Revised: 08/13/2023] [Accepted: 09/02/2023] [Indexed: 09/15/2023]
Abstract
Since the developmental stage of oocyte is a challenging issue in the success of vitrification, this study investigated the effects of vitrification, before and after in vitro maturation, on the survival and maturation rates, developmental competence and the expression levels of genes involved in apoptosis, oxidative stress and epigenetic modifications. Mouse germinal vesicle (GV) oocytes were divided into four groups: fresh in vitro matured oocytes without vitrification (fIVM), in vitro matured oocytes after vitrification (vIVM), in vitro matured oocytes before vitrification (IVMv). In addition, in vivo matured oocytes (MII) were used as control. After oocytes collection, maturation and survival rates as well as the intracellular reactive oxygen species (ROS) level were evaluated. Also, the expression level of various genes was analyzed by qRT-PCR. In addition, following artificial activation (parthenogenesis), the developmental competence of oocytes to the blastocyst stage was evaluated. A significant decrease in maturation rate and survival of vIVM oocytes was observed compared to fIVM and IVMv oocytes. Intracellular ROS levels were significantly increased in both vitrified groups compared to the fIVM group, and no significant difference between vitrified groups. Pro-apoptotic genes; BAX and Bcl2 as well as genes related to oxidative stress response Hsp1a, Hsp1b and SOD1were significantly increased in the vIVM group compared to the IVMv group. Interestingly, epigenetic regulators genes DNMT1, DNMT3a and DNMT3b were highly expressed in IVMv oocytes along with a decrease in the artificial activation rate compared to the vIVM oocytes. Our results indicated that despite observing more negative effects of vitrification before IVM on the survival rate and maturation as well as apoptosis status, less epigenetic changes in vIVM oocytes can make this process a better option in the treatment of infertility than IVM of oocytes followed by vitrification, a hypothesis that needs to be investigation in human oocytes.
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Affiliation(s)
- Asma Momeni
- Anatomical Sciences Department, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Tahereh Haghpanah
- Anatomical Sciences Department, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran.
| | | | - Sareh Ashourzadeh
- Afzalipour Clinical Center for Infertility, Kerman University of Medical Sciences, Afzalipour Hospital, Kerman, Iran
| | - Seyed Hassan Eftekhar-Vaghefi
- Anatomical Sciences Department, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran; Department of Anatomy, Kerman Branch, Islamic Azad University, Kerman, Iran.
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Elgendy O, Kitahara G, Yamada K, Taniguchi S, Osawa T. 5-Aminolevulinic acid/sodium ferrous citrate improves the quality of heat-stressed bovine oocytes by reducing oxidative stress. J Reprod Dev 2023; 69:261-269. [PMID: 37599082 PMCID: PMC10602763 DOI: 10.1262/jrd.2023-038] [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] [Received: 04/06/2023] [Accepted: 07/26/2023] [Indexed: 08/22/2023] Open
Abstract
A high temperature-humidity index during summer has deleterious effects on mitochondrial function, reducing oocyte developmental competence. 5-Aminolevulinic acid (5-ALA) and sodium ferrous citrate (SFC) are both known to support mitochondrial function and have strong anti-oxidant and anti-apoptotic activities. This study aimed to determine the mechanism of action of 5-ALA/SFC on oocyte quality. Bovine oocytes were collected from medium-sized follicles during summer (July-September, temperature-humidity index:76.6), cultured with 0, 1, 2, 4, and 8 µM 5-ALA with SFC at a molar ratio of 1:0.125, fertilized, and cultured for 10 days. The addition of 8/1 µM 5-ALA/SFC had a deleterious effect on oocyte cleavage rate in comparison with control oocytes, but did not affect the blastocyst rate, while 1/0.125 µM 5-ALA/SFC had a significantly higher increase in blastocyst rate than 8/1 µM 5-ALA/SFC. The addition of 1/0.125 and 2/0.25 µM 5-ALA/SFC improved oocyte quality by increasing the mitochondrial distribution pattern and metaphase-II oocytes, reducing reactive oxygen species and upregulating nuclear factor erythroid-2-related factor 2, heme oxygenase-1, and superoxide dismutase-1 in oocytes, and nuclear factor erythroid-2-related factor 2 and mitochondrial transcription factor A in cumulus cells. These results indicate that 1/0.125 and 2/0.25 µM 5-ALA/SFC may support oocyte quality and developmental competence and provide anti-oxidant actions in cumulus-oocyte complexes.
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Affiliation(s)
- Omnia Elgendy
- Graduate School of Medicine and Veterinary Medicine, University of Miyazaki, Miyazaki 889-2192, Japan
- Department of Veterinary Sciences, Faculty of Agriculture, University of Miyazaki, Miyazaki 889-2192, Japan
- Department of Theriogenology, Faculty of Veterinary Medicine, Benha University, Qalyobia 13736, Egypt
| | - Go Kitahara
- Graduate School of Medicine and Veterinary Medicine, University of Miyazaki, Miyazaki 889-2192, Japan
- Department of Veterinary Sciences, Faculty of Agriculture, University of Miyazaki, Miyazaki 889-2192, Japan
| | - Kentaro Yamada
- Graduate School of Medicine and Veterinary Medicine, University of Miyazaki, Miyazaki 889-2192, Japan
- Department of Veterinary Sciences, Faculty of Agriculture, University of Miyazaki, Miyazaki 889-2192, Japan
| | - Shin Taniguchi
- One Health Business Department, Neopharma Japan Co., Ltd., Tokyo 102-0071, Japan
- Present: Hokusatsu Regional Promotion Bureau, Kagoshima pref., Kagoshima, Japan
| | - Takeshi Osawa
- Graduate School of Medicine and Veterinary Medicine, University of Miyazaki, Miyazaki 889-2192, Japan
- Department of Veterinary Sciences, Faculty of Agriculture, University of Miyazaki, Miyazaki 889-2192, Japan
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Zhang H, Li C, Liu Q, Li J, Wu H, Xu R, Sun Y, Cheng M, Zhao X, Pan M, Wei Q, Ma B. C-type natriuretic peptide improves maternally aged oocytes quality by inhibiting excessive PINK1/Parkin-mediated mitophagy. eLife 2023; 12:RP88523. [PMID: 37860954 PMCID: PMC10588981 DOI: 10.7554/elife.88523] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2023] Open
Abstract
The overall oocyte quality declines with aging, and this effect is strongly associated with a higher reactive oxygen species (ROS) level and the resultant oxidative damage. C-type natriuretic peptide (CNP) is a well-characterized physiological meiotic inhibitor that has been successfully used to improve immature oocyte quality during in vitro maturation. However, the underlying roles of CNP in maternally aged oocytes have not been reported. Here, we found that the age-related reduction in the serum CNP concentration was highly correlated with decreased oocyte quality. Treatment with exogenous CNP promoted follicle growth and ovulation in aged mice and enhanced meiotic competency and fertilization ability. Interestingly, the cytoplasmic maturation of aged oocytes was thoroughly improved by CNP treatment, as assessed by spindle/chromosome morphology and redistribution of organelles (mitochondria, the endoplasmic reticulum, cortical granules, and the Golgi apparatus). CNP treatment also ameliorated DNA damage and apoptosis caused by ROS accumulation in aged oocytes. Importantly, oocyte RNA-seq revealed that the beneficial effect of CNP on aged oocytes was mediated by restoration of mitochondrial oxidative phosphorylation, eliminating excessive mitophagy. CNP reversed the defective phenotypes in aged oocytes by alleviating oxidative damage and suppressing excessive PINK1/Parkin-mediated mitophagy. Mechanistically, CNP functioned as a cAMP/PKA pathway modulator to decrease PINK1 stability and inhibit Parkin recruitment. In summary, our results demonstrated that CNP supplementation constitutes an alternative therapeutic approach for advanced maternal age-related oocyte deterioration and may improve the overall success rates of clinically assisted reproduction in older women.
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Affiliation(s)
- Hui Zhang
- College of Veterinary Medicine, Northwest A&F UniversityYanglingChina
- Key Laboratory of Animal Biotechnology, Ministry of AgricultureYanglingChina
| | - Chan Li
- College of Veterinary Medicine, Northwest A&F UniversityYanglingChina
- Key Laboratory of Animal Biotechnology, Ministry of AgricultureYanglingChina
| | - Qingyang Liu
- College of Veterinary Medicine, Northwest A&F UniversityYanglingChina
- Key Laboratory of Animal Biotechnology, Ministry of AgricultureYanglingChina
| | - Jingmei Li
- College of Veterinary Medicine, Northwest A&F UniversityYanglingChina
- Key Laboratory of Animal Biotechnology, Ministry of AgricultureYanglingChina
| | - Hao Wu
- College of Veterinary Medicine, Northwest A&F UniversityYanglingChina
- Key Laboratory of Animal Biotechnology, Ministry of AgricultureYanglingChina
| | - Rui Xu
- College of Veterinary Medicine, Northwest A&F UniversityYanglingChina
- Key Laboratory of Animal Biotechnology, Ministry of AgricultureYanglingChina
| | - Yidan Sun
- College of Veterinary Medicine, Northwest A&F UniversityYanglingChina
- Key Laboratory of Animal Biotechnology, Ministry of AgricultureYanglingChina
| | - Ming Cheng
- College of Veterinary Medicine, Northwest A&F UniversityYanglingChina
- Key Laboratory of Animal Biotechnology, Ministry of AgricultureYanglingChina
| | - Xiaoe Zhao
- College of Veterinary Medicine, Northwest A&F UniversityYanglingChina
- Key Laboratory of Animal Biotechnology, Ministry of AgricultureYanglingChina
| | - Menghao Pan
- College of Veterinary Medicine, Northwest A&F UniversityYanglingChina
- Key Laboratory of Animal Biotechnology, Ministry of AgricultureYanglingChina
| | - Qiang Wei
- College of Veterinary Medicine, Northwest A&F UniversityYanglingChina
- Key Laboratory of Animal Biotechnology, Ministry of AgricultureYanglingChina
| | - Baohua Ma
- College of Veterinary Medicine, Northwest A&F UniversityYanglingChina
- Key Laboratory of Animal Biotechnology, Ministry of AgricultureYanglingChina
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Qu J, Hu H, Niu H, Sun X, Li Y. Melatonin restores the declining maturation quality and early embryonic development of oocytes in aged mice. Theriogenology 2023; 210:110-118. [PMID: 37490796 DOI: 10.1016/j.theriogenology.2023.07.021] [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] [Received: 03/14/2023] [Revised: 07/03/2023] [Accepted: 07/19/2023] [Indexed: 07/27/2023]
Abstract
With increase in women's age, the reproductive capability of female mammals decreases dramatically caused by age-related oxidative stress, coinciding with the decline in the ovarian reserve, and the quality and quantity of oocytes, which is the main determinant of female fertility. Melatonin, as an effective antioxidant and antiaging substance, is secreted by the pineal gland and been found in the follicular fluid as well, which has been turned out to enable to protect oocytes from oxidative stress during ovulation. However, the beneficial effects of melatonin on meiotic maturation in vitro and early embryo development of aged oocytes are still not fully understood. Thus, the aim of this study is to explore the potential mechanism of melatonin to improve the oocytes maturation and early embryonic development. The results suggested that oocyte quality decreased with age, whereas 10-6 M melatonin supplementation can significantly prompt the maturation quality of oocytes, the rate of fertilization and the formation rate of blastocyst. Mechanistic investigation indicated that melatonin supplementation not only restored the function of mitochondria by reducing reactive oxygen species (ROS) generation and early apoptosis, but also increased the level of ATP and total GSH through enhancing the mRNA expression levels of SIRT1, SIRT3, GPX4, SOD1 and SOD2. In conclusion, melatonin could alleviate the impairment of age-related oxidative stress to meiotic maturation and early embryonic development of oocytes. This study may provide a potential remediation strategy to improve the quality of oocytes from aged women and the efficiency of assisted reproductive technologies.
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Affiliation(s)
- Jingwen Qu
- Key Laboratory for Animal Genetics & Molecular Breeding of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009, China; The Department of Animal and Veterinary Science, University of Vermont, Burlington, VT, 05405, USA.
| | - Huiru Hu
- Key Laboratory for Animal Genetics & Molecular Breeding of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009, China.
| | - Haoyuan Niu
- Key Laboratory for Animal Genetics & Molecular Breeding of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009, China.
| | - Xiaomei Sun
- Key Laboratory for Animal Genetics & Molecular Breeding of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009, China.
| | - Yongjun Li
- Key Laboratory for Animal Genetics & Molecular Breeding of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009, China.
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Li L, Han Q, Chen Y, Zhang M, Wang L, An X, Zhang S, Zhai Y, Dai X, Tang B, Li Z, Xie G. β-nicotinamide mononucleotide rescues the quality of aged oocyte and improves subsequent embryo development in pigs. PLoS One 2023; 18:e0291640. [PMID: 37796824 PMCID: PMC10553265 DOI: 10.1371/journal.pone.0291640] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 09/02/2023] [Indexed: 10/07/2023] Open
Abstract
Oocyte senescence alters the shape and function, thereby weakening the fertilization potential. Nicotinamide mononucleotide (NMN) reverses age-related dysfunctions in various organs. Studies had shown long-term administration of NMN reduced the physiological decline associated in aged mice and reversed the aging of the ovaries. However, the protective effect of NMN on aged porcine oocytes is still unclear. In this study, we investigated the effects of NMN on aging porcine oocytes and subsequent embryonic development. We established a model of senescence of porcine oocytes after ovulation by extending the culture time in vitro. NMN supplementation significantly reduced reactive oxygen species (ROS) levels in senescence oocytes and increased the mRNA levels of antioxidant genes SOD1 and Cat. The mitochondrial membrane potential of aged oocytes treated with NMN was increased compared with that of untreated oocytes. In addition, the mRNA level of apoptosis-related gene Bax was significantly decreased in senescence oocytes treated with NMN, while the mRNA level of anti-apoptosis-related gene BCL-2 was significantly increased. Furthermore, NMN supplementation enhanced the subsequent development ability of senescent oocytes during in vitro aging. Compared with untreated senescent oocytes, the blastocyst formation rate and pluripotent genes of senescent oocytes treated with NMN were significantly increased. Taken together, these results suggest that NMN is beneficial for delaying the aging process in porcine oocytes.
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Affiliation(s)
- Leyi Li
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, 130021, Jilin, China
| | - Qinghe Han
- Radiology Department, The second hospital of Jilin University, Changchun, 130041, P. R. China
| | - Yurong Chen
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, First Hospital, Jilin University, Changchun, 130021, Jilin, China
| | - Meng Zhang
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, First Hospital, Jilin University, Changchun, 130021, Jilin, China
| | - Luyao Wang
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, First Hospital, Jilin University, Changchun, 130021, Jilin, China
| | - Xinglan An
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, First Hospital, Jilin University, Changchun, 130021, Jilin, China
| | - Sheng Zhang
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, First Hospital, Jilin University, Changchun, 130021, Jilin, China
| | - Yanhui Zhai
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, First Hospital, Jilin University, Changchun, 130021, Jilin, China
| | - Xiangpeng Dai
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, First Hospital, Jilin University, Changchun, 130021, Jilin, China
| | - Bo Tang
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, 130021, Jilin, China
| | - Ziyi Li
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, First Hospital, Jilin University, Changchun, 130021, Jilin, China
| | - Guanghong Xie
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, 130021, Jilin, China
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Oliveira I, Fisch J, Gomes J, Lopes RFF, Oliveira ATDD. Selection of Rattus norvegicus cumulus-oocyte complex for vitrification by brilliant cresyl blue. ZYGOTE 2023; 31:483-490. [PMID: 37449710 DOI: 10.1017/s0967199423000394] [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: 07/18/2023]
Abstract
The influence of the method of evaluating developmentally competent oocytes on their viability after cryopreservation still needs to be better understood. The objective of this study was to determine the cleavage and embryo developmental rates after parthenogenetic activation of cumulus-oocyte complexes (COCs) selected by different concentrations of brilliant cresyl blue (BCB) and cryopreservation. In the first experiment, COCs were separated into groups and incubated for 1 h in medium containing BCB (13 μM, 16 μM, or 20 μM). The control group was not exposed to BCB staining. In the second experiment, COCs were divided into four groups: 13 μM BCB(+), 13 μM BCB(-), fresh control (selected by morphologic observation and immediately in vitro matured) and vitrified control (selected by morphologic evaluation, vitrified, and in vitro matured). In the first experiment, the 13 μM BCB group displayed greater development rates at the morula stage (65.45%, 36/55) when compared with the other groups. In the second experiment, cleavage (47.05%, 72/153) and morula development (33.55%, 51/153) of the control group of fresh COCs were increased compared with the other groups. However, when comparing morula rates between vitrified COC control and BCB(+) groups, the BCB(+) group had better results (19.23%, 5/26 and 64.7%, 11/17, respectively). Our best result in rat COC selection by BCB staining was obtained using a concentration of 13 μM. This selection could be a valuable tool to improve vitrification outcomes, as observed by the BCB(+) group that demonstrated better results compared with the vitrified COC control.
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Affiliation(s)
- Iaskara Oliveira
- PPG - Ciências da Saúde - Universidade Federal de Ciências da Saúde de Porto Alegre -UFCSPA, Porto Alegre, RS, Brazil
| | - Joana Fisch
- PPG - Ciências da Saúde - Universidade Federal de Ciências da Saúde de Porto Alegre -UFCSPA, Porto Alegre, RS, Brazil
| | - Juliana Gomes
- Laboratório de Biotecnologia Animal Aplicada- Universidade Federal do Rio Grande do Sul-UFRGS, Porto Alegre, RS, Brazil
| | - Rui Fernando Felix Lopes
- Laboratório de Biotecnologia Animal Aplicada- Universidade Federal do Rio Grande do Sul-UFRGS, 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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Song X, Jiang H, Lv P, Cui K, Liu Q, Yin S, Liu H, Li Z. Transcriptome analyses reveal transcriptional profiles of horse oocytes before and after in vitro maturation. Reprod Domest Anim 2023; 58:1468-1479. [PMID: 37650336 DOI: 10.1111/rda.14462] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 08/06/2023] [Accepted: 08/09/2023] [Indexed: 09/01/2023]
Abstract
Oocyte in vitro maturation is necessary for the study and application of animal-assisted reproduction technology in animal reproduction and breeding. The comprehensive transcriptional profile of equine oocyte maturated in vitro has not been fully mined yet, which makes many key transcriptional events still unidentified. Here, Smart-seq2 was performed to analyse the gene expression pattern and the underlying regulatory mechanism of horse germinal vesicle (GV) and in vitro metaphase II (MII) oocytes. The results showed that 6402 genes (2640 up-regulated and 3762 down-regulated in MII samples compared to GV) and 4021 lncRNA transcripts (1210 up-regulated and 2811 down-regulated in MII samples compared to GV) were differentially expressed in GV and MII oocytes. Further, GO and KEGG analysis found that differentially expressed mRNAs and lncRNAs were mainly enriched in the pathways related to energy and lipid metabolism. In addition, LGALS3 was found a key gene in mediating the regulation of oocyte meiosis recovery and fertilization ability. This study provides novel knowledge about gene expression and energy metabolism during equine oocyte maturation and a reference for the further study and application of assisted reproductive technology in horse reproduction and breeding.
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Affiliation(s)
- Xinhui Song
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Hancai Jiang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Peiru Lv
- Henan Chuangyuan Biotechnology Co. Ltd, Zhengzhou, China
| | - Kuiqing Cui
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Animal Science and Technology, Guangxi University, Nanning, China
- Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, School of Life Science and Engineering, Foshan University, Foshan, China
| | - Qingyou Liu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Animal Science and Technology, Guangxi University, Nanning, China
- Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, School of Life Science and Engineering, Foshan University, Foshan, China
| | - Shan Yin
- Henan Chuangyuan Biotechnology Co. Ltd, Zhengzhou, China
| | - Hongbo Liu
- Henan Chuangyuan Biotechnology Co. Ltd, Zhengzhou, China
| | - Zhipeng Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Animal Science and Technology, Guangxi University, Nanning, China
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Shani AK, Haham LM, Balakier H, Kuznyetsova I, Bashar S, Day EN, Librach CL. The developmental potential of mature oocytes derived from rescue in vitro maturation. Fertil Steril 2023; 120:860-869. [PMID: 37257719 DOI: 10.1016/j.fertnstert.2023.05.163] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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] [Received: 10/20/2022] [Revised: 05/20/2023] [Accepted: 05/23/2023] [Indexed: 06/02/2023]
Abstract
OBJECTIVE To examine the developmental competence of immature oocytes in stimulated cycles, that matured after rescue in vitro maturation (IVM) compared with their sibling in vivo matured oocytes. DESIGN Retrospective cohort study. SETTING IVF clinic. PATIENTS A total of 182 patients underwent 200 controlled ovarian stimulation cycles with intracytoplasmic sperm injection cycles in which immature oocytes were retrieved and at least one mature oocyte was obtained through rescue IVM. INTERVENTION In vitro culture of immature germinal vesicle (GV) and metaphase I (MI) oocytes, retrieved in stimulated cycles. MAIN OUTCOME MEASURES Fertilization rate, cleavage rate, blastulation rate, ploidy of embryos evaluated using preimplantation genetic testing for aneuploidy, morphokinetic parameters and pregnancy outcomes. RESULTS In total, 2,288 oocytes were retrieved from 200 cycles. After denudation, 1,056 of the oocytes (46% ± 16%) were classified as metaphase II (MII). A total of 333/375 (89%) of MI oocytes and 292/540 (54%) of GV oocytes matured overnight and underwent intracytoplasmic sperm injection. The fertilization rates of matured oocytes from MI rescue IVM (R-MI) and from GV rescue IVM (R-GV) were comparable with those of their sibling MII oocytes (71% vs. 66%; 66% vs. 63%, respectively). Early cleavage rates (80% ± 35% vs. 92% ± 20%; 80% ± 42% vs. 95% ± 28%, respectively) and blastulation rates (32 ± 40% vs. 62 ± 33%; 24 ± 37% vs. 60 ± 35%, respectively) were significantly decreased in rescue IVM matured oocytes (R-oocytes)-derived zygotes, but the blastocyst (BL) euploidy rate and "good quality" BL rate were comparable with those of MII sibling-derived embryos. In addition, rescue IVM embryos showed significantly higher levels of multinucleation at the 2- and 4-cell stages, as well as higher rates of zygote direct cleavage from one to 3 to 4 cells. Overall, 21 transfers of rescue IVM embryos resulted in 3 healthy live births. CONCLUSIONS For patients with a low maturation rate and/or low numbers of mature oocytes at retrieval, rescue IVM may contribute more competent oocytes and additional viable BLs for transfer from the same stimulation cycle, maximizing the chances for pregnancy and live birth.
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Affiliation(s)
- Adi Kuperman Shani
- CReATe Fertility Centre, Toronto, Ontario, Canada; Department of Obstetrics and Gynecology, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Lilach Marom Haham
- CReATe Fertility Centre, Toronto, Ontario, Canada; Department of Obstetrics and Gynecology, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | | | - Iryna Kuznyetsova
- CReATe Fertility Centre, Toronto, Ontario, Canada; Laboratory of Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
| | | | - Erin N Day
- CReATe Fertility Centre, Toronto, Ontario, Canada
| | - Clifford L Librach
- CReATe Fertility Centre, Toronto, Ontario, Canada; Department of Obstetrics and Gynecology, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada; Laboratory of Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada; Institute of Medical Sciences, University of Toronto, Toronto, Ontario, Canada; Department of Physiology, University of Toronto, Toronto, Ontario, Canada; Sunnybrook Research Institute, Toronto, Ontario, Canada.
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Wang Y, Qi JJ, Yin YJ, Jiang H, Zhang JB, Liang S, Yuan B. Ferulic Acid Enhances Oocyte Maturation and the Subsequent Development of Bovine Oocytes. Int J Mol Sci 2023; 24:14804. [PMID: 37834252 PMCID: PMC10573426 DOI: 10.3390/ijms241914804] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 09/19/2023] [Accepted: 09/29/2023] [Indexed: 10/15/2023] Open
Abstract
Improving the quality of oocytes matured in vitro is integral to enhancing the efficacy of in vitro embryo production. Oxidative stress is one of the primary causes of quality decline in oocytes matured in vitro. In this study, ferulic acid (FA), a natural antioxidant found in plant cell walls, was investigated to evaluate its impact on bovine oocyte maturation and subsequent embryonic development. Bovine cumulus-oocyte complexes (COCs) were treated with different concentrations of FA (0, 2.5, 5, 10, 20 μM) during in vitro maturation (IVM). Compared to the control group, supplementation with 5 μM FA significantly enhanced the maturation rates of bovine oocytes and the expansion of the cumulus cells area, as well as the subsequent cleavage and blastocyst formation rates after in vitro fertilization (IVF) and somatic cell nuclear transfer (SCNT). Furthermore, FA supplementation was observed to effectively decrease the levels of ROS in bovine oocytes and improve their mitochondrial function. Our experiments demonstrate that FA can maintain the levels of antioxidants (GSH, SOD, CAT) in oocytes, thereby alleviating the oxidative stress induced by H2O2. RT-qPCR results revealed that, after FA treatment, the relative mRNA expression levels of genes related to oocyte maturation (GDF-9 and BMP-15), cumulus cell expansion (HAS2, PTX3, CX37, and CX43), and embryo pluripotency (OCT4, SOX2, and CDX2) were significantly increased. In conclusion, these findings demonstrate that FA supplementation during bovine oocyte IVM can enhance oocyte quality and the developmental potential of subsequent embryos.
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Affiliation(s)
| | | | | | | | | | - Shuang Liang
- Department of Animals Sciences, College of Animal Sciences, Jilin University, Changchun 130062, China; (Y.W.); (J.-J.Q.); (Y.-J.Y.); (H.J.); (J.-B.Z.)
| | - Bao Yuan
- Department of Animals Sciences, College of Animal Sciences, Jilin University, Changchun 130062, China; (Y.W.); (J.-J.Q.); (Y.-J.Y.); (H.J.); (J.-B.Z.)
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Lu J, Guo M, Wang X, Wang R, Xi G, An L, Tian J, Chu M. A Redesigned Method for CNP-Synchronized In Vitro Maturation Inhibits Oxidative Stress and Apoptosis in Cumulus-Oocyte Complexes and Improves the Developmental Potential of Porcine Oocytes. Genes (Basel) 2023; 14:1885. [PMID: 37895234 PMCID: PMC10606118 DOI: 10.3390/genes14101885] [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] [Received: 08/31/2023] [Revised: 09/25/2023] [Accepted: 09/26/2023] [Indexed: 10/29/2023] Open
Abstract
In vitro embryo production depends on high-quality oocytes. Compared with in vivo matured oocytes, in vitro oocytes undergo precocious meiotic resumption, thus compromising oocyte quality. C-type natriuretic peptide (CNP) is a follicular factor maintaining meiotic arrest. Thus, CNP-pretreatment has been widely used to improve the in vitro maturation (IVM) of oocytes in many species. However, the efficacy of this strategy has remained unsatisfactory in porcine oocytes. Here, by determining the functional concentration and dynamics of CNP in inhibiting spontaneous meiotic resumption, we improved the current IVM system of porcine oocytes. Our results indicate that although the beneficial effect of the CNP pre-IVM strategy is common among species, the detailed method may be largely divergent among them and needs to be redesigned specifically for each one. Focusing on the overlooked role of cumulus cells surrounding the oocytes, we also explore the mechanisms relevant to their beneficial effect. In addition to oocytes per se, the enhanced anti-apoptotic and anti-oxidative gene expression in cumulus cells may contribute considerably to improved oocyte quality. These findings not only emphasize the importance of screening the technical parameters of the CNP pre-IVM strategy for specific species, but also highlight the critical supporting role of cumulus cells in this promising strategy.
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Affiliation(s)
- Jinlun Lu
- State Key Laboratory of Animal Biotech Breeding, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
| | - Min Guo
- State Key Laboratory of Animal Biotech Breeding, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
| | - Xiaodong Wang
- State Key Laboratory of Animal Biotech Breeding, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
| | - Rui Wang
- State Key Laboratory of Animal Biotech Breeding, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
| | - Guangyin Xi
- State Key Laboratory of Animal Biotech Breeding, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
| | - Lei An
- State Key Laboratory of Animal Biotech Breeding, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
| | - Jianhui Tian
- State Key Laboratory of Animal Biotech Breeding, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
| | - Meiqiang Chu
- State Key Laboratory of Animal Biotech Breeding, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
- College of Agriculture and Forestry Science, Linyi University, Linyi 276000, China
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Pöhland R, Vanselow J, Sterza FM. Translocation of Oocytic HES1 into Surrounding Cumulus Cells in Bovine: Mechanism of Cellular Interaction during IVM? Int J Mol Sci 2023; 24:11932. [PMID: 37569307 PMCID: PMC10418482 DOI: 10.3390/ijms241511932] [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] [Received: 06/20/2023] [Revised: 07/21/2023] [Accepted: 07/21/2023] [Indexed: 08/13/2023] Open
Abstract
HES1 (hairy and enhancer of split-1, effector of the NOTCH pathway) plays a role in oocyte maturation and has been detected so far mainly in somatic follicular cells. In this study, we aimed to investigate whether HES1 is present in both compartments of bovine cumulus oocyte complexes (COCs) and whether in vitro maturation itself has an effect on its distribution. We investigated the abundance of HES1 mRNA and protein in bovine COCs characterized by Brilliant-Cresyl-Blue (BCB) stainability by RT-PCR and immunofluorescence before and after in vitro maturation (IVM). To study the interaction of the compartments and the possible translocation of HES1, we injected GFP-HES1 mRNA into oocytes before maturation and analyzed fluorescence recovery after photobleaching (FRAP). The results showed that HES1 mRNA was detectable in oocytes but not in cumulus cells. The number of transcripts increased with maturation, especially in BCB-positive oocytes. In contrast, the protein was mainly visible in cumulus cells both before and after maturation. After GFP-HES1-mRNA injection into oocytes, a signal could be detected not only in the oocytes but also in cumulus cells. Our result shows a nearly exclusive distribution of HES1 mRNA and protein in oocytes and cumulus cells, respectively, that might be explained by the transfer of the protein from the oocyte into cumulus cells.
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Affiliation(s)
- Ralf Pöhland
- Reproductive Biology Unit, Research Institute for Farm Animal Biology (FBN), 18196 Dummerstorf, Germany;
| | - Jens Vanselow
- Reproductive Biology Unit, Research Institute for Farm Animal Biology (FBN), 18196 Dummerstorf, Germany;
| | - Fabiana Melo Sterza
- Animal Science, State University of Mato Grosso do Sul (UEMS), Aquidauana 79200-000, MS, Brazil;
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Costa M, Strumane A, Raes A, Van Soom A, Babin D, Aelterman J. Deep-Learning Based Quantification of Bovine Oocyte Quality From Microscopy Images . Annu Int Conf IEEE Eng Med Biol Soc 2023; 2023:1-4. [PMID: 38082658 DOI: 10.1109/embc40787.2023.10340258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
The success rate of bovine in vitro embryo reproduction is low and highly dependent on the oocyte quality. The selection of the oocyte to be fertilized is done by the embryologists' visual examination of oocytes. It is time-consuming, subjective, and inconsistent between specialists in the area. In this paper, a semi-automatic solution is proposed to score the quality of an immature oocyte. It consists of a deep learning model to classify oocyte competence. The model was trained and tested with real data, composed of images of immature oocytes and their label of whether they developed into blastocysts after fertilization. To the best of our knowledge, automated bovine oocyte classification was not attempted before, but experimental results show that our proposed solution is more robust and objective than specialists' visual assessment and comparable with other works on human oocytes.Clinical relevance- This establishes a semi-automatic real-time method to score bovine immature oocytes, based on stereo-microscopy images. Our method will significantly reduce the time of in vitro embryo production and its success.
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Tripathi SK, Nandi S, Gupta PSP, Mondal S. Antioxidants supplementation improves the quality of in vitro produced ovine embryos with amendments in key development gene expressions. Theriogenology 2023; 201:41-52. [PMID: 36827868 DOI: 10.1016/j.theriogenology.2022.11.048] [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] [Received: 09/22/2022] [Revised: 11/30/2022] [Accepted: 11/30/2022] [Indexed: 12/12/2022]
Abstract
The present study assessed the effects of supplementation of different antioxidants on oocyte maturation, embryo production, reactive oxygen species (ROS) production and expression of key developmental genes. In this study, using ovine as an animal model, we tested the hypothesis that antioxidant supplementation enhanced the developmental competence of oocytes. Ovine oocytes aspirated from local abattoir-derived ovaries were subjected to IVM with different concentrations of antioxidants [(Melatonin, Ascorbic acid (Vit C), alpha-tocopherol (Vit E), Sodium selenite (SS)]. Oocytes matured without any antioxidant supplementation were used as controls. The oocytes were assessed for maturation rates and ROS levels. Further, embryo production rates in terms of cleavage, blastocysts and total cell numbers were evaluated after performing in vitro fertilization. Real-Time PCR analysis was used to evaluate the expression of stress related gene (SOD-1), growth related (GDF-9, BMP-15), and apoptosis-related genes (BCL-2 and BAX). We observed that maturation rates were significantly higher in alpha-tocopherol (100 μM; 92.4%) groups followed by melatonin (30 μM; 89.1%) group. However, blastocyst rates in ascorbic acid (100 μM; 19.5%), melatonin (30 μM; 18.4%), alpha-tocopherol (100 μM; 18.2%), and sodium selenite (20 μM; 16.9%) groups were significantly higher (P 0.05) than that observed in the control groups. Total cell numbers in blastocysts in the melatonin, ascorbic acid and alpha-tocopherol groups were significantly higher than those observed in sodium selenite and control groups. ROS production was reduced in groups treated with melatonin (30 μM), vitamin C (100 μM), sodium selenite (20 μM) and α-tocopherol (200 μM) compared with that observed in the control group. Supplementation of antioxidants caused the alterations in mRNA expression of growth, stress, and apoptosis related gene expression in matured oocytes. The results recommend that antioxidants alpha-tocopherol (200 μM), sodium selenite (40 μM), melatonin (30 μM) and ascorbic acid (100 μM) during IVM reduced the oxidative stress by decreasing ROS levels in oocytes, thus improving embryo quantity and quality.
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Affiliation(s)
- S K Tripathi
- ICAR-National Institute of Animal Nutrition and Physiology, Adugodi, Bangalore, India
| | - S Nandi
- ICAR-National Institute of Animal Nutrition and Physiology, Adugodi, Bangalore, India.
| | - P S P Gupta
- ICAR-National Institute of Animal Nutrition and Physiology, Adugodi, Bangalore, India
| | - S Mondal
- ICAR-National Institute of Animal Nutrition and Physiology, Adugodi, Bangalore, India
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Du S, Wang Y, Yang X, Liu X, Deng K, Chen M, Yan X, Lu F, Shi D. Beneficial effects of fibroblast growth factor 10 supplementation during in vitro maturation of buffalo cumulus-oocyte complexes. Theriogenology 2023; 201:126-137. [PMID: 36893617 DOI: 10.1016/j.theriogenology.2023.02.023] [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] [Received: 12/11/2022] [Revised: 02/20/2023] [Accepted: 02/21/2023] [Indexed: 02/26/2023]
Abstract
Fibroblast growth factor 10 (FGF10) is an important regulator of the mammalian cumulus-oocyte complex that plays a crucial role in oocyte maturation. In this study, we investigated the effects of FGF10 supplementation on the in vitro maturation (IVM) of buffalo oocytes and its related mechanisms. During IVM, the maturation medium was supplemented with a range of concentrations of FGF10 (0, 0.5, 5, and 50 ng/mL) and the resulting effects were corroborated using aceto-orcein staining, TUNEL apoptosis assay, detection of Cdc2/Cdk1 kinase in oocytes, and real-time quantitative PCR. In matured oocytes, the 5 ng/mL-FGF10 treatment resulted in a significantly increased nuclear maturation rate, which increased the activity of maturation-promoting factor (MPF) and enhanced buffalo oocyte maturation. Furthermore, it treatment significantly inhibited the apoptosis of cumulus cells, while simultaneously promoting its proliferation and expansion. This treatment also increased the absorption of glucose in cumulus cells. Thus, our results indicate that adding an appropriate concentration of FGF10 to a maturation medium during IVM can be beneficial to the maturation of buffalo oocytes and improve the potential of embryo development.
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Affiliation(s)
- Shanshan Du
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Animal Reproduction Institute, Guangxi University, Nanning, China; Department of Reproductive Medicine, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Yanxin Wang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Animal Reproduction Institute, Guangxi University, Nanning, China
| | - Xiaofen Yang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Animal Reproduction Institute, Guangxi University, Nanning, China
| | - Xiaohua Liu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Animal Reproduction Institute, Guangxi University, Nanning, China
| | - Kai Deng
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Animal Reproduction Institute, Guangxi University, Nanning, China
| | - Mengjia Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Animal Reproduction Institute, Guangxi University, Nanning, China
| | - Xi Yan
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Animal Reproduction Institute, Guangxi University, Nanning, China
| | - Fenghua Lu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Animal Reproduction Institute, Guangxi University, Nanning, China.
| | - Deshun Shi
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Animal Reproduction Institute, Guangxi University, Nanning, China.
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Pham HH, Le AH, Nguyen AM, Ha UD, Nguyen TC, Pham TD, Le HL, Le TK, Huynh BG, Ho TM, Vuong LN. Cumulative live birth rate after oocyte in vitro maturation with a pre-maturation step in women with polycystic ovary syndrome or high antral follicle count. J Assist Reprod Genet 2023; 40:827-835. [PMID: 36821006 PMCID: PMC10224896 DOI: 10.1007/s10815-023-02752-9] [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] [Received: 10/16/2022] [Accepted: 02/13/2023] [Indexed: 02/24/2023] Open
Abstract
PURPOSE This study evaluated the 24-month cumulative live birth rate (CLBR) for women with polycystic ovary syndrome (PCOS) or high antral follicle count (AFC) who underwent oocyte in vitro maturation (IVM) with pre-maturation step (CAPA-IVM). METHODS This multicenter, retrospective study was performed at IVFMD, My Duc Hospital, and IVFMD Phu Nhuan, My Duc Phu Nhuan Hospital from 1 January 2017 to 31 December 2019. All women with PCOS or high AFC treated with a CAPA-IVM cycle were included. Cumulative live birth was defined as at least one live birth resulting from the initiated CAPA-IVM cycle. Where a woman did not return for embryo transfer, outcomes were followed up until 24 months from the day of oocyte aspiration. Logistic regression was performed to identify factors predicting the CLBR. RESULTS Data from 374 women were analyzed, 368 of whom had embryos for transfer (98.4%), and six had no embryos for transfer (1.6%). The oocyte maturation rate was 63.2%. The median number of frozen embryos was 4 [quartile 1, 2; quartile 3, 6]. Cumulative clinical pregnancy and ongoing pregnancy rates were 60.4% and 43.6%, respectively. At 24 months after starting CAPA-IVM treatment, the CLBR was 38.5%. Multivariate analysis showed that patient age and number of frozen embryos were significant predictors of cumulative live birth after CAPA-IVM. CONCLUSIONS CAPA-IVM could be considered as an alternative to in vitro fertilization for the management of infertility in women with PCOS or a high AFC who require assisted reproductive technology.
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Affiliation(s)
- Huy H Pham
- IVMFD Phu Nhuan, My Duc Phu Nhuan Hospital, 43R/2-4 Ho Van Hue, Phu Nhuan District, Ho Chi Minh City, Vietnam.
- HOPE Research Center, My Duc Hospital, Ho Chi Minh City, Vietnam.
| | - Anh H Le
- IVMFD Phu Nhuan, My Duc Phu Nhuan Hospital, 43R/2-4 Ho Van Hue, Phu Nhuan District, Ho Chi Minh City, Vietnam
- HOPE Research Center, My Duc Hospital, Ho Chi Minh City, Vietnam
| | - Anh M Nguyen
- HOPE Research Center, My Duc Hospital, Ho Chi Minh City, Vietnam
- IVFMD, My Duc Hospital, Ho Chi Minh City, Vietnam
| | - Uyen D Ha
- IVMFD Phu Nhuan, My Duc Phu Nhuan Hospital, 43R/2-4 Ho Van Hue, Phu Nhuan District, Ho Chi Minh City, Vietnam
- HOPE Research Center, My Duc Hospital, Ho Chi Minh City, Vietnam
| | - Tri C Nguyen
- HOPE Research Center, My Duc Hospital, Ho Chi Minh City, Vietnam
| | - Toan D Pham
- HOPE Research Center, My Duc Hospital, Ho Chi Minh City, Vietnam
| | - Ho L Le
- IVMFD Phu Nhuan, My Duc Phu Nhuan Hospital, 43R/2-4 Ho Van Hue, Phu Nhuan District, Ho Chi Minh City, Vietnam
- HOPE Research Center, My Duc Hospital, Ho Chi Minh City, Vietnam
| | - Tien K Le
- IVMFD Phu Nhuan, My Duc Phu Nhuan Hospital, 43R/2-4 Ho Van Hue, Phu Nhuan District, Ho Chi Minh City, Vietnam
- HOPE Research Center, My Duc Hospital, Ho Chi Minh City, Vietnam
| | - Bao G Huynh
- HOPE Research Center, My Duc Hospital, Ho Chi Minh City, Vietnam
- IVFMD, My Duc Hospital, Ho Chi Minh City, Vietnam
| | - Tuong M Ho
- HOPE Research Center, My Duc Hospital, Ho Chi Minh City, Vietnam
- IVFMD, My Duc Hospital, Ho Chi Minh City, Vietnam
| | - Lan N Vuong
- HOPE Research Center, My Duc Hospital, Ho Chi Minh City, Vietnam
- Department of Obstetrics and Gynecology, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Vietnam
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Yousef MS, Rezk WR, El-Naby ASAHH, Mahmoud KGM, Takagi M, Miyamoto A, Megahed GA. In vitro effect of zearalenone on sperm parameters, oocyte maturation and embryonic development in buffalo. Reprod Biol 2023; 23:100732. [PMID: 36669377 DOI: 10.1016/j.repbio.2023.100732] [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] [Received: 04/16/2022] [Revised: 11/23/2022] [Accepted: 01/13/2023] [Indexed: 01/20/2023]
Abstract
The negative impact of zearalenone (ZEN; potent estrogenic mycotoxin) exposure on buffalo embryo production has not yet been determined. In the current study, buffalo sperm and oocytes were exposed to ZEN at different concentrations during maturation. Sperms (with and without ZEN exposure) were incubated for 2 h and evaluated for motility, viability, acrosome integrity, normality, and ultrastructure. Matured oocytes exposed to ZEN were stained to determine their nuclear maturation. Further, their developmental ability was evaluated after in vitro fertilization. Our results showed the toxic effects of ZEN at high concentrations (2000 ng/mL) on different buffalo sperm parameters. The number of acrosome-intact sperm was reduced at 0 h after exposure to a concentration of ≥ 100 ng/mL. Furthermore, the maturation rate of buffalo oocytes (telophase I + metaphase II) was significantly decreased in ZEN-treated oocytes with a higher degeneration rate. Oocytes matured in 1000 ng/mL ZEN and subsequently exhibited considerable reduction in cleavage rate and blastocyst formation compared with control oocytes (2.6% vs. 13.1%). Moreover, the morula rate was decreased (p < 0.001) in ZEN-treated oocytes at concentrations of ≥ 10 ng/mL. Overall, the adverse effects of in vitro ZEN exposure on buffalo sperm parameters and oocyte meiotic progression with a notable reduction in cleavage, morula, and blastocyst rates were defined by these results. Altogether, buffaloes should be considered sensitive to ZEN exposure with respect to their reproductive function.
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Affiliation(s)
- Mohamed S Yousef
- Department of Theriogenology, Faculty of Veterinary Medicine, Assiut University, Assiut, Egypt; Global Agromedicine Research Center (GAMRC), Obihiro University of Agriculture and Veterinary Medicine, Obihiro 080 8555, Japan.
| | - Walaa R Rezk
- Department of Theriogenology, Faculty of Veterinary Medicine, Assiut University, Assiut, Egypt
| | | | - Karima Gh M Mahmoud
- Department of Animal Reproduction and A.I, Veterinary Research Division, National Research Centre, Dokki, 12622 Giza, Egypt
| | - Mitsuhiro Takagi
- Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi 1677-1, Japan
| | - Akio Miyamoto
- Global Agromedicine Research Center (GAMRC), Obihiro University of Agriculture and Veterinary Medicine, Obihiro 080 8555, Japan.
| | - Gaber A Megahed
- Department of Theriogenology, Faculty of Veterinary Medicine, Assiut University, Assiut, Egypt
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Hara S, Inoue Y, Aoki S, Tanaka K, Shirasuna K, Iwata H. Beneficial Effect of Polysaccharide Gel Made of Xanthan Gum and Locust Bean Gum on Bovine Oocytes. Int J Mol Sci 2023; 24:ijms24043508. [PMID: 36834915 PMCID: PMC9963600 DOI: 10.3390/ijms24043508] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 02/06/2023] [Accepted: 02/08/2023] [Indexed: 02/12/2023] Open
Abstract
The present study examined the effect of polysaccharides gels made of xanthan gum and locust bean gum (gel culture system) on oocyte maturation and explored the molecules causing the beneficial effect of the gel culture system. Oocytes and cumulus cells complexes were collected from slaughterhouse-derived ovaries and cultured on a plastic plate or gel. The gel culture system improved the rate of development to the blastocyst stage. The oocytes that matured on the gel contained high lipid contents and F-actin formation, and the resultant 8-cell stage embryos had low DNA methylation levels compared to their plate counterparts. RNA sequencing of the oocytes and embryos revealed the differentially expressed genes between the gel and plate culture systems, and upstream regulator analysis revealed estradiol and TGFB1 as top activated upstream molecules. The medium of the gel culture system contained higher concentrations of estradiol and TGFB1 than that of the plate cultures system. Supplementation of the maturation medium with either estradiol or TGFB1 resulted in high lipid content in oocytes. In addition, TGFB1 improved the developmental ability of the oocytes and increased F-actin content while reducing DNA methylation levels in the 8-cell stage embryos. In conclusion, the gel culture system is useful for embryo production, potentially through the upregulation of TGFB1.
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