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Zhang M, Zhang J, Wang D, Liu Z, Xing K, Wang Y, Jiao M, Wang Y, Shi B, Zhang H, Zhang Y. C-X-C motif chemokine ligand 12 improves the developmental potential of bovine oocytes by activating SH2 domain-containing tyrosine phosphatase 2 during maturation†. Biol Reprod 2023; 109:282-298. [PMID: 37498179 DOI: 10.1093/biolre/ioad079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 03/21/2023] [Accepted: 07/25/2023] [Indexed: 07/28/2023] Open
Abstract
In vitro maturation of mammalian oocytes is an important means in assisted reproductive technology. Most bovine immature oocytes complete nuclear maturation, but less than half develop to the blastocyst stage after fertilization. Thus, inefficient in vitro production is mainly caused by a suboptimal in vitro culture process, in which oocyte quality appears to be the limiting factor. In our study, a potential maternal regulator, C-X-C motif chemokine ligand 12, was identified by analyzing transcriptome data. C-X-C motif chemokine ligand 12 supplementation promoted the developmental potential of oocytes by improving protein synthesis and reorganizing cortical granules and mitochondria during in vitro maturation, which eventually increased blastocyst formation efficiency and cell number after parthenogenesis, fertilization, and cloning. All these promoting effects by C-X-C motif chemokine ligand 12 were achieved by activating SH2 domain-containing tyrosine phosphatase 2, thereby promoting the mitogen-activated protein kinase signaling pathway. These findings provide an in vitro maturation system that closely resembles the maternal environment to provide high-quality oocytes for in vitro production.
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Affiliation(s)
- Min Zhang
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Jingcheng Zhang
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Debao Wang
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Zhengqing Liu
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Kangning Xing
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Yongsheng Wang
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Mei Jiao
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Yong Wang
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Binqiang Shi
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Hexu Zhang
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Yong Zhang
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
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Liu Z, Jin X, Miao Y, Wang P, Gu Y, Shangguan X, Chen L, Wang G. Identification and Characterization of C-Mos in Pearl Mussel Hyriopsis cumingii and Its Role in Gonadal Development. Biomolecules 2023; 13:931. [PMID: 37371511 DOI: 10.3390/biom13060931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 05/29/2023] [Accepted: 05/31/2023] [Indexed: 06/29/2023] Open
Abstract
C-Mos, a proto-oncogene, regulates oocyte maturation by activating the classical MAPK pathway in cells. To examine the function of C-Mos in Hyriopsis cumingii, C-Mos was identified in this study. The full-length cDNA of C-Mos was 2213 bp, including 144 bp in the 5' UTR, 923 bp in 3' the UTR, and 1146 bp in the open reading frame (ORF) region. During early gonad development, the expression of C-Mos from 4 to 6 months of age in H. cumingii was significantly higher than that in other months, with the highest expression in 6-month-old H. cumingii, suggesting that C-Mos may be involved in early gonadal development in H. cumingii. Clear hybridization signals were found by in situ hybridization in the oocytes, oocyte nucleus and oogonium, and a small number of hybridization signals were found in the follicular wall of the male gonads. In addition, the C-Mos RNA interference (RNAi) assay results showed that the knockdown of C-Mos caused a down-regulation of ERK and P90rsk. In summary, these results indicate that C-Mos has a crucial part to play in gonadal development in H. cumingii.
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Affiliation(s)
- Zongyu Liu
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai 201306, China
- National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China
- Shanghai Engineering Research Center of Aquaculture, Shanghai 201306, China
| | - Xin Jin
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai 201306, China
- National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China
- Shanghai Engineering Research Center of Aquaculture, Shanghai 201306, China
| | - Yulin Miao
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai 201306, China
- National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China
- Shanghai Engineering Research Center of Aquaculture, Shanghai 201306, China
| | - Ping Wang
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai 201306, China
- National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China
- Shanghai Engineering Research Center of Aquaculture, Shanghai 201306, China
| | - Yang Gu
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai 201306, China
- National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China
- Shanghai Engineering Research Center of Aquaculture, Shanghai 201306, China
| | - Xiaozhao Shangguan
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai 201306, China
- National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China
- Shanghai Engineering Research Center of Aquaculture, Shanghai 201306, China
| | - Lijing Chen
- Shanghai Vocational College of Agriculture and Forestry, Shanghai 201699, China
| | - Guiling Wang
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai 201306, China
- National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China
- Shanghai Engineering Research Center of Aquaculture, Shanghai 201306, China
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Wang X, Zhang M, Zhang D, Yan Y, Liu Q, Xu C, Zhu Z, Wu S, Zong Y, Cao Z, Zhang Y. Emamectin benzoate exposure impaired porcine oocyte maturation. Theriogenology 2023; 206:123-132. [PMID: 37209432 DOI: 10.1016/j.theriogenology.2023.05.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 05/14/2023] [Accepted: 05/14/2023] [Indexed: 05/22/2023]
Abstract
Emamectin benzoate (EB) is a widely used insecticide that can damage the central nervous and immune systems. EB exposure significantly reduced the number of eggs laid, hatching rate, and developmental rate of lower organisms such as nematodes. However, effects of EB exposure on the maturation of higher animals such as porcine oocytes remains unknown. Here we reported that EB exposure severely impaired porcine oocyte maturation. EB exposure with 200 μM prevented cumulus expansion and reduced the rates of first polar body (pb1) extrusion, cleavage and blastocyst after parthenogenetic activation. Moreover, EB exposure disrupted spindle organization, chromosome alignment, and polymerization of microfilaments, but also apparently decreased the levels of acetylated α-tubulin (Ac-Tub) in oocytes. In addition, EB exposure perturbed mitochondria distribution and increased levels of reactive oxygen species (ROS), but did not affect the distribution of cortical granules (CGs) in oocytes. Excessive ROS caused DNA damage accumulation and induced early apoptosis of oocytes. EB exposure led to the abnormal expression of cumulus expansion and apoptosis-associated genes. Altogether, these results demonstrate that EB exposure impaired nuclear and cytoplasmic maturation of porcine oocytes probably through oxidative stress and early apoptosis.
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Affiliation(s)
- Xin Wang
- Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, 230036, China
| | - Mengya Zhang
- Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, 230036, China
| | - Danruo Zhang
- Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, 230036, China
| | - Yelian Yan
- Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, 230036, China
| | - Qiuchen Liu
- Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, 230036, China
| | - Changzhi Xu
- Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, 230036, China
| | - Zhihua Zhu
- Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, 230036, China
| | - Sucheng Wu
- Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, 230036, China
| | - Yanfeng Zong
- Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, 230036, China
| | - Zubing Cao
- Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, 230036, China.
| | - Yunhai Zhang
- Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, 230036, China.
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Li Q, Mu L, Yang X, Wang G, Liang J, Wang S, Zhang H, Li Z. Discovery of Oogenesis Biomarkers from Mouse Oocytes Using a Single-Cell Proteomics Approach. J Proteome Res 2023. [PMID: 37154469 DOI: 10.1021/acs.jproteome.3c00157] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
We established an efficient and simplified single-cell proteomics (ES-SCP) workflow to realize proteomics profiling at the single-oocyte level. With the ES-SCP workflow, we constructed a deep coverage proteome library during oocyte maturation, which contained more than 6000 protein groups, and identified and quantified more than 4000 protein groups from a pool of only 15 oocytes at germinal vesicle (GV), GV breakdown (GVBD), and metaphase II (MII) stages. More than 1500 protein groups can be identified from single oocytes. We found that marker proteins including maternal factors and mRNA regulators, such as ZAR1, TLE6, and BTG4, showed significant variations in abundance during oocyte maturation, and it was discovered that maternal mRNA degradation was indispensable during oocyte maturation. Proteomics analysis from single oocytes revealed that changes in antioxidant factors, maternal factors, mRNA stabilization, and energy metabolism were the factors that affect the oocyte quality during ovary aging. Our data laid the foundation for future innovations in assisted reproduction.
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Affiliation(s)
- Qian Li
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Lu Mu
- State Key Laboratory of Farm Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Xuebing Yang
- State Key Laboratory of Farm Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Ge Wang
- State Key Laboratory of Farm Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Jing Liang
- State Key Laboratory of Farm Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Shaolin Wang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Hua Zhang
- State Key Laboratory of Farm Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Zhen Li
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing 100193, China
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Das D, Arur S. Regulation of oocyte maturation: Role of conserved ERK signaling. Mol Reprod Dev 2022; 89:353-374. [PMID: 35908193 PMCID: PMC9492652 DOI: 10.1002/mrd.23637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 07/12/2022] [Accepted: 07/18/2022] [Indexed: 11/11/2022]
Abstract
During oogenesis, oocytes arrest at meiotic prophase I to acquire competencies for resuming meiosis, fertilization, and early embryonic development. Following this arrested period, oocytes resume meiosis in response to species-specific hormones, a process known as oocyte maturation, that precedes ovulation and fertilization. Involvement of endocrine and autocrine/paracrine factors and signaling events during maintenance of prophase I arrest, and resumption of meiosis is an area of active research. Studies in vertebrate and invertebrate model organisms have delineated the molecular determinants and signaling pathways that regulate oocyte maturation. Cell cycle regulators, such as cyclin-dependent kinase (CDK1), polo-like kinase (PLK1), Wee1/Myt1 kinase, and the phosphatase CDC25 play conserved roles during meiotic resumption. Extracellular signal-regulated kinase (ERK), on the other hand, while activated during oocyte maturation in all species, regulates both species-specific, as well as conserved events among different organisms. In this review, we synthesize the general signaling mechanisms and focus on conserved and distinct functions of ERK signaling pathway during oocyte maturation in mammals, non-mammalian vertebrates, and invertebrates such as Drosophila and Caenorhabditis elegans.
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Affiliation(s)
- Debabrata Das
- Department of Genetics, UT MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Swathi Arur
- Department of Genetics, UT MD Anderson Cancer Center, Houston, TX 77030, USA
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Taghizabet N, Bahmanpour S, Zarei-fard N, Mohseni G, Aliakbari F, Dehghani F. Effect of endometrial cell-conditioned medium and platelet-rich plasma on the developmental competence of mouse preantral follicles: An in vitro study. Clin Exp Reprod Med 2022; 49:175-184. [PMID: 36097733 PMCID: PMC9468696 DOI: 10.5653/cerm.2022.05260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 07/04/2022] [Indexed: 11/18/2022] Open
Abstract
Objective The aim of this study was to evaluate the impacts of platelet-rich plasma (PRP) and conditioned medium (CM) derived from endometrial stromal cells on mouse preantral follicle culture in a two-dimensional system to produce competent mature oocytes for fertilization. Methods In total, 240 preantral follicles were isolated from female mouse ovarian tissue and divided into four groups. The preantral follicles were isolated three times for each group and then cultured, respectively, in the presence of alpha minimum essential medium (control), PRP, CM, and PRP+CM. The in vitro growth, in vitro maturation, and cleavage percentage of the preantral follicles were investigated. Immunocytochemistry (IHC) was also conducted to monitor the meiotic progression of the oocytes. Additionally, the mRNA expression levels of the two folliculogenesis-related genes (Gdf9 and Bmp15) and two apoptosis-related genes (Bcl2 and Bax) were investigated using real-time polymerase chain reaction. Results In the PRP, CM, and PRP+CM groups, the preantral follicle maturation (evaluated by identifying polar bodies) were greater than the control group. The cleavage rate in the CM, and PRP+CM groups were also greater than the control group. IHC analysis demonstrated that in each treatment group, meiotic spindle was normal. In the PRP+CM group, the gene expression levels of Bmp15, Gdf9, and Bcl2 were greater than in the other groups. The Bax gene was more strongly expressed in the PRP and control groups than in the other groups. Conclusion Overall, the present study suggests that the combination of CM and PRP can effectively increase the growth and cleavage rate of mouse preantral follicles in vitro.
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Affiliation(s)
- Neda Taghizabet
- Histomorphometry and Stereology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
- Department of Anatomical Sciences, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Soghra Bahmanpour
- Department of Anatomical Sciences, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Nehleh Zarei-fard
- Histomorphometry and Stereology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
- Department of Anatomical Sciences, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Gholamreza Mohseni
- Men’s Health and Reproductive Health Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fereshteh Aliakbari
- Men’s Health and Reproductive Health Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Farzaneh Dehghani
- Histomorphometry and Stereology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
- Department of Anatomical Sciences, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
- Corresponding Author: Farzaneh Dehghani Histomorphometry and Stereology Research Center, Shiraz University of Medical Sciences and Department of Anatomical Sciences, School of Medicine, Shiraz University of Medical Sciences, Emam Hossein Ave, Zand St, Shiraz 7134853185, Iran Tel: +91-7717-0758, E-mail:
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Marei WFA, De Bie J, Xhonneux I, Andries S, Britt JH, Leroy JLMR. Metabolic and antioxidant status during transition is associated with changes in the granulosa cell transcriptome in the preovulatory follicle in high-producing dairy cows at the time of breeding. J Dairy Sci 2022; 105:6956-6972. [PMID: 35840405 DOI: 10.3168/jds.2022-21928] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Accepted: 04/29/2022] [Indexed: 12/20/2022]
Abstract
In this study, we hypothesized that early postpartum (pp) metabolic and oxidative stress conditions in dairy cows (particularly those with severe negative energy balance, NEB) are associated with long-term changes in granulosa cell (GC) functions in the preovulatory follicle at the time of breeding. Blood samples were collected at wk 2 and wk 8 pp from 47 healthy multiparous cows. Follicular fluid (FF) and GC were collected from the preovulatory follicle after estrous synchronization at wk 8. Several metabolic and antioxidant parameters were measured in blood and FF, and their correlations were studied. Subsequently, 27 representative GC samples were selected for RNA sequencing analysis. The GC gene expression data of LH-responsive genes and the estradiol:progesterone ratio in FF were used to identify pre- and post-LH surge cohorts. We compared the transcriptomic profile of subgroups of cows within the highest and lowest quartiles (Q4 vs. Q1) of each parameter, focusing on the pre-LH surge cohort (n = 16, at least 3 in each subgroup). Differentially expressed genes (DEG: adjusted P-value < 0.05, 5% false discovery rate) were determined using DESeq2 analysis and were functionally annotated. Blood and FF β-carotene and vitamin E concentrations at wk 2, but not at wk 8, were associated with the most pronounced transcriptomic differences in the GC, with up to 341 DEG indicative for lower catabolism, increased oxidoreductase activity and signaling cascades that are known to enhance oocyte developmental competence, increased responsiveness to LH, and a higher steroidogenic activity. In contrast, elevated blood NEFA concentrations at wk 2 (and not at wk 8) were associated with a long-term carryover effect detectable in the GC transcriptome at wk 8 (64 DEG). These genes are related to response to lipids and ketones, oxidative stress, and immune responses, which suggests persistent cellular stress and oxidative damage. This effect was more pronounced in cows with antioxidant deficiencies at wk 8 (up to 148 DEG), with more genes involved in oxidative stress-dependent responses, apoptosis, autophagy and catabolic processes, and mitochondrial damage. Interestingly, within the severe NEB cows (high blood NEFA at wk 2), blood antioxidant concentrations (high vs. low) at wk 8 were associated with up to 194 DEG involved in activation of meiosis and other signaling pathways, indicating a better oocyte supportive capacity. This suggests that the cow antioxidant profile at the time of breeding might alleviate, at least in part, the effect of NEB on GC functions. In conclusion, these results provide further evidence that the metabolic and oxidative stress in dairy cows early postpartum can have long-term effects on GC functions in preovulatory follicles at the time of breeding. The interplay between the effects of antioxidants and NEFA illustrated here might be useful to develop intervention strategies to minimize the effect of severe NEB on fertility.
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Affiliation(s)
- Waleed F A Marei
- Gamete Research Centre, Department of Veterinary Sciences, University of Antwerp, 2610 Wilrijk, Belgium; Department of Theriogenology, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt.
| | - Jessie De Bie
- Gamete Research Centre, Department of Veterinary Sciences, University of Antwerp, 2610 Wilrijk, Belgium
| | - Inne Xhonneux
- Gamete Research Centre, Department of Veterinary Sciences, University of Antwerp, 2610 Wilrijk, Belgium
| | - Silke Andries
- Gamete Research Centre, Department of Veterinary Sciences, University of Antwerp, 2610 Wilrijk, Belgium
| | - Jack H Britt
- Department of Animal Science, North Carolina State University, Raleigh 27695-7621
| | - Jo L M R Leroy
- Gamete Research Centre, Department of Veterinary Sciences, University of Antwerp, 2610 Wilrijk, Belgium
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Passos JRS, Guerreiro DD, Otávio KS, Dos Santos-Neto PC, Souza-Neves M, Cuadro F, Nuñez-Olivera R, Crispo M, Vasconcelos FR, Bezerra MJB, Silva RF, Lima LF, Figueiredo JR, Bustamante-Filho IC, Menchaca A, Moura AA. How in vitro maturation changes the proteome of ovine cumulus-oocyte complexes? Mol Reprod Dev 2022; 89:459-470. [PMID: 35901249 DOI: 10.1002/mrd.23638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 05/29/2022] [Accepted: 07/21/2022] [Indexed: 11/11/2022]
Abstract
The present study evaluated the effects of in vitro maturation (IVM) on the proteome of cumulus-oocyte complexes (COCs) from ewes. Extracted COC proteins were analyzed by LC-MS/MS. Differences in protein abundances (p < 0.05) and functional enrichments in immature versus in vitro-matured COCs were evaluated using bioinformatics tools. There were 2550 proteins identified in the COCs, with 89 and 87 proteins exclusive to immature and mature COCs, respectively. IVM caused downregulation of 84 and upregulation of 34 proteins. Major upregulated proteins in mature COCs were dopey_N domain-containing protein, structural maintenance of chromosomes protein, ubiquitin-like modifier-activating enzyme 2. Main downregulated proteins in mature COCs were immunoglobulin heavy constant mu, inter-alpha-trypsin inhibitor heavy chain 2, alpha-2-macroglobulin. Proteins exclusive to mature COCs and upregulated after IVM related to immune response, complement cascade, vesicle-mediated transport, cell cycle, and extracellular matrix organization. Proteins of immature COCs and downregulated after IVM were linked to metabolic processes, immune response, and complement cascade. KEGG pathways and miRNA-regulated genes attributed to downregulated and mature COC proteins related to complement and coagulation cascades, metabolism, humoral response, and B cell-mediated immunity. Thus, IVM influenced the ovine COC proteome. This knowledge supports the future development of efficient IVM protocols for Ovis aries.
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Affiliation(s)
- José Renato S Passos
- Laboratory of Animal Physiology, Department of Animal Science, Federal University of Ceará, Fortaleza, Brazil
| | - Denise D Guerreiro
- Laboratory of Animal Physiology, Department of Animal Science, Federal University of Ceará, Fortaleza, Brazil
| | - Kamila S Otávio
- Laboratory of Animal Physiology, Department of Animal Science, Federal University of Ceará, Fortaleza, Brazil
| | | | - Marcela Souza-Neves
- Instituto de Reproducción Animal Uruguay, Fundación IRAUy, Montevideo, Uruguay
| | - Federico Cuadro
- Instituto de Reproducción Animal Uruguay, Fundación IRAUy, Montevideo, Uruguay
| | | | - Martina Crispo
- Unidad de Biotecnología en Animales de Laboratorio, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Fábio R Vasconcelos
- Laboratory of Animal Physiology, Department of Animal Science, Federal University of Ceará, Fortaleza, Brazil
| | - Maria Julia B Bezerra
- Laboratory of Animal Physiology, Department of Animal Science, Federal University of Ceará, Fortaleza, Brazil
| | - Renato F Silva
- Laboratory of Manipulation of Oocyte and Preantral Follicles (LAMOFOPA), Ceará State University, Fortaleza, Brazil
| | - Laritza F Lima
- Laboratory of Manipulation of Oocyte and Preantral Follicles (LAMOFOPA), Ceará State University, Fortaleza, Brazil
| | - José Ricardo Figueiredo
- Laboratory of Manipulation of Oocyte and Preantral Follicles (LAMOFOPA), Ceará State University, Fortaleza, Brazil
| | | | - Alejo Menchaca
- Instituto de Reproducción Animal Uruguay, Fundación IRAUy, Montevideo, Uruguay.,Plataforma de Investigación en Salud Animal, Instituto Nacional de Investigación Agropecuaria, Montevideo, Uruguay
| | - Arlindo A Moura
- Laboratory of Animal Physiology, Department of Animal Science, Federal University of Ceará, Fortaleza, Brazil
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Ozturk S. Molecular determinants of the meiotic arrests in mammalian oocytes at different stages of maturation. Cell Cycle 2022; 21:547-571. [PMID: 35072590 PMCID: PMC8942507 DOI: 10.1080/15384101.2022.2026704] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Mammalian oocytes undergo two rounds of developmental arrest during maturation: at the diplotene of the first meiotic prophase and metaphase of the second meiosis. These arrests are strictly regulated by follicular cells temporally producing the secondary messengers, cAMP and cGMP, and other factors to regulate maturation promoting factor (composed of cyclin B1 and cyclin-dependent kinase 1) levels in the oocytes. Out of these normally appearing developmental arrests, permanent arrests may occur in the oocytes at germinal vesicle (GV), metaphase I (MI), or metaphase II (MII) stage. This issue may arise from absence or altered expression of the oocyte-related genes playing key roles in nuclear and cytoplasmic maturation. Additionally, the assisted reproductive technology (ART) applications such as ovarian stimulation and in vitro culture conditions both of which harbor various types of chemical agents may contribute to forming the permanent arrests. In this review, the molecular determinants of developmental and permanent arrests occurring in the mammalian oocytes are comprehensively evaluated in the light of current knowledge. As number of permanently arrested oocytes at different stages is increasing in ART centers, potential approaches for inducing permanent arrests to obtain competent oocytes are discussed.
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Affiliation(s)
- Saffet Ozturk
- Department of Histology and Embryology, Akdeniz University School of Medicine, Antalya, Turkey,CONTACT Saffet Ozturk Department of Histology and Embryology, Akdeniz University School of Medicine, Antalya07070, Turkey
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10
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Transcription Analysis for Core Networks of lncRNAs–mRNAs: Implication for Potential Role in Sterility of Crassostrea gigas. BIOLOGY 2022; 11:biology11030378. [PMID: 35336752 PMCID: PMC8945556 DOI: 10.3390/biology11030378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 02/19/2022] [Accepted: 02/22/2022] [Indexed: 11/17/2022]
Abstract
Simple Summary This study reveals the expression profiles of lncRNA in the gonads of the Pacific oyster Crassostrea gigas. The potential function of lncRNAs was predicted in the case of antisense and cis-regulatory mechanisms based on their physical positions and their coexpression relationships in the case of trans regulation. Sterility-related DEGs and DELs were chosen for subsequent analysis, demonstrating that trans-regulatory lncRNAs might play a vital role in the gametogenesis of C. gigas. We constructed core networks of lncRNAs–mRNAs for triploid sterile females and hermaphrodites based on pathway results, in which 28 lncRNAs and their 54 trans-regulatory genes were detected. Among 28 sterility-specific lncRNAs, MSTRG.79882.3 and MSTRG.79882.4 for triploid sterile females and MSTRG.33704.1, MSTRG.63844.1, and MSTRG.5675.1 for hermaphrodites play the most significant role. Abstract Long noncoding RNA (lncRNA), a type of non-protein-coding transcript, is emerging as a crucial regulator of gene expression. However, few roles of lncRNA in the reproductive process of the Pacific oyster (Crassostrea gigas) have been defined, especially in the regulatory mechanism of sterile triploids gametogenesis. To uncover the potential role of lncRNA, the gonads of diploids, sterile triploids, and partially sterile triploids underwent RNA sequencing. A total of 9618 reliable lncRNAs were identified. The target relationship between lncRNA and mRNA was predicted based on cis, trans, and antisense regulation with bioinformatic software. We chose differentially expressed lncRNAs and mRNAs when sterile triploids were compared to partially sterile triploids and diploids for subsequent functional enrichment analysis. Findings revealed that trans-regulatory lncRNAs might play a significant role in the gametogenesis of C. gigas. Combining pathway results, we constructed core networks of lncRNAs–mRNAs for triploid sterile females and hermaphrodites. Fifty-four genes related to cell division, germline-cell maintenance, and glycogen metabolism were found to be associated with sterility. A total of 28 candidate lncRNAs were predicted to trans-regulate these genes. We speculated that MSTRG.79882.3 and MSTRG.79882.4 for triploid sterile females and MSTRG.33704.1, MSTRG.63844.1, and MSTRG.5675.1 for hermaphrodites were highly important as they were predicted to regulate more sterility-specific genes than others. Our work collectively identified sterility-related lncRNAs and implicated the potential mechanism of lncRNA-mediated regulation in the gametogenesis of sterile triploid oysters.
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Schatten H. Centrosomes in Reproduction. THE CENTROSOME AND ITS FUNCTIONS AND DYSFUNCTIONS 2022; 235:55-73. [DOI: 10.1007/978-3-031-20848-5_6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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12
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Li J, Chen H, Gou M, Tian C, Wang H, Song X, Keefe DL, Bai X, Liu L. Molecular Features of Polycystic Ovary Syndrome Revealed by Transcriptome Analysis of Oocytes and Cumulus Cells. Front Cell Dev Biol 2021; 9:735684. [PMID: 34552933 PMCID: PMC8450412 DOI: 10.3389/fcell.2021.735684] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Accepted: 08/09/2021] [Indexed: 01/21/2023] Open
Abstract
Polycystic ovary syndrome (PCOS) is typically characterized by a polycystic ovarian morphology, hyperandrogenism, ovulatory dysfunction, and infertility. Furthermore, PCOS patients undergoing ovarian stimulation have more oocytes; however, the poor quality of oocytes leads to lower fertilization and implantation rates, decreased pregnancy rates, and increased miscarriage rates. The complex molecular mechanisms underlying PCOS and the poor quality of oocytes remain to be elucidated. We obtained matched oocytes and cumulus cells (CCs) from PCOS patients, compared them with age-matched controls, and performed RNA sequencing analysis to explore the transcriptional characteristics of their oocytes and CCs. Moreover, we validated our newly confirmed candidate genes for PCOS by immunofluorescence. Unsupervised clustering analysis showed that the overall global gene expression patterns and transposable element (TE) expression profiles of PCOS patients tightly clustered together, clearly distinct from those of controls. Abnormalities in functionally important pathways are found in PCOS oocytes. Notably, genes involved in microtubule processes, TUBB8 and TUBA1C, are overexpressed in PCOS oocytes. The metabolic and oxidative phosphorylation pathways are also dysregulated in both oocytes and CCs from PCOS patients. Moreover, in oocytes, differentially expressed TEs are not uniformly dispersed in human chromosomes. Endogenous retrovirus 1 (ERV1) elements located on chromosomes 2, 3, 4, and 5 are rather highly upregulated. Interestingly, these correlate with the most highly expressed protein-coding genes, including tubulin-associated genes TUBA1C, TUBB8P8, and TUBB8, linking the ERV1 elements to the occurrence of PCOS. Our comprehensive analysis of gene expression in oocytes and CCs, including TE expression, revealed the specific molecular features of PCOS. The aberrantly elevated expression of TUBB8 and TUBA1C and ERV1 provides additional markers for PCOS and may contribute to the compromised oocyte developmental competence in PCOS patients. Our findings may also have implications for treatment strategies to improve oocyte maturation and the pregnancy outcomes for women with PCOS.
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Affiliation(s)
- Jie Li
- The State Key Laboratory of Medicinal Chemical Biology, Department of Cell Biology and Genetics, College of Life Sciences, Nankai University, Tianjin, China
| | - Haixia Chen
- The Center for Reproductive Medicine, Tianjin Medical University General Hospital, Tianjin, China
| | - Mo Gou
- The State Key Laboratory of Medicinal Chemical Biology, Department of Cell Biology and Genetics, College of Life Sciences, Nankai University, Tianjin, China
| | - Chenglei Tian
- The State Key Laboratory of Medicinal Chemical Biology, Department of Cell Biology and Genetics, College of Life Sciences, Nankai University, Tianjin, China
| | - Huasong Wang
- The State Key Laboratory of Medicinal Chemical Biology, Department of Cell Biology and Genetics, College of Life Sciences, Nankai University, Tianjin, China
| | - Xueru Song
- The Center for Reproductive Medicine, Tianjin Medical University General Hospital, Tianjin, China
| | - David L Keefe
- Department of Obstetrics and Gynecology, NYU Langone Medical Center, New York, NY, United States
| | - Xiaohong Bai
- The Center for Reproductive Medicine, Tianjin Medical University General Hospital, Tianjin, China
| | - Lin Liu
- The State Key Laboratory of Medicinal Chemical Biology, Department of Cell Biology and Genetics, College of Life Sciences, Nankai University, Tianjin, China
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13
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Dong Y, Lyu L, Zhang D, Li J, Wen H, Shi B. Integrated lncRNA and mRNA Transcriptome Analyses in the Ovary of Cynoglossus semilaevis Reveal Genes and Pathways Potentially Involved in Reproduction. Front Genet 2021; 12:671729. [PMID: 34093665 PMCID: PMC8172126 DOI: 10.3389/fgene.2021.671729] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Accepted: 04/20/2021] [Indexed: 12/11/2022] Open
Abstract
Long non-coding RNAs (lncRNAs) have been reported to be involved in multiple biological processes. However, the roles of lncRNAs in the reproduction of half-smooth tongue sole (Cynoglossus semilaevis) are unclear, especially in the molecular regulatory mechanism driving ovarian development and ovulation. Thus, to explore the mRNA and lncRNA mechanisms regulating reproduction, we collected tongue sole ovaries in three stages for RNA sequencing. In stage IV vs. V, we identified 312 differentially expressed (DE) mRNAs and 58 DE lncRNAs. In stage V vs. VI, we identified 1,059 DE mRNAs and 187 DE lncRNAs. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analyses showed that DE mRNAs were enriched in ECM-receptor interaction, oocyte meiosis and steroid hormone biosynthesis pathways. Furthermore, we carried out gene set enrichment analysis (GSEA) to identify potential reproduction related-pathways additionally, such as fatty metabolism and retinol metabolism. Based on enrichment analysis, DE mRNAs with a potential role in reproduction were selected and classified into six categories, including signal transduction, cell growth and death, immune response, metabolism, transport and catabolism, and cell junction. The interactions of DE lncRNAs and mRNAs were predicted according to antisense, cis-, and trans-regulatory mechanisms. We constructed a competing endogenous RNA (ceRNA) network. Several lncRNAs were predicted to regulate genes related to reproduction including cyp17a1, cyp19a1, mmp14, pgr, and hsd17b1. The functional enrichment analysis of these target genes of lncRNAs revealed that they were involved in several signaling pathways, such as the TGF-beta, Wnt signaling, and MAPK signaling pathways and reproduction related-pathways such as the progesterone-mediated oocyte maturation, oocyte meiosis, and GnRH signaling pathway. RT-qPCR analysis showed that two lncRNAs (XR_522278.2 and XR_522171.2) were mainly expressed in the ovary. Dual-fluorescence in situ hybridization experiments showed that both XR_522278.2 and XR_522171.2 colocalized with their target genes cyp17a1 and cyp19a1, respectively, in the follicular cell layer. The results further demonstrated that lncRNAs might be involved in the biological processes by modulating gene expression. Taken together, this study provides lncRNA profiles in the ovary of tongue sole and further insight into the role of lncRNA involvement in regulating reproduction in tongue sole.
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Affiliation(s)
- Yani Dong
- Key Laboratory of Mariculture, Ministry of Education, Fisheries College, Ocean University of China, Qingdao, China.,Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China
| | - Likang Lyu
- Key Laboratory of Mariculture, Ministry of Education, Fisheries College, Ocean University of China, Qingdao, China
| | - Daiqiang Zhang
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China
| | - Jing Li
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China
| | - Haishen Wen
- Key Laboratory of Mariculture, Ministry of Education, Fisheries College, Ocean University of China, Qingdao, China
| | - Bao Shi
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China.,Laboratory for Marine Fisheries and Food Production Processes, Pilot National Laboratory for Marine Science and Technology, Qingdao, China
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Figla promotes secondary follicle growth in mature mice. Sci Rep 2021; 11:9842. [PMID: 33972571 PMCID: PMC8110814 DOI: 10.1038/s41598-021-89052-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 04/20/2021] [Indexed: 11/09/2022] Open
Abstract
The in vitro growth (IVG) of human follicles is a potential fertility option for women for whom cryopreserved ovarian tissues cannot be transplanted due to the risk of cancer cell reintroduction; however, there is currently no established method. Furthermore, optimal IVG conditions may differ between the follicles of adult and pre-pubertal females due to molecular differences suggested by basic research. To systematically identify differences between the secondary follicles of adult and pre-pubertal females, a comparative transcriptomic study using mice was conducted herein. Among differentially expressed genes (DEGs), Figla was up-regulated in mature mice. We successfully down-regulated Figla expression in secondary follicle oocytes by a Figla siRNA microinjection, and the subsequent IVG of follicles showed that the diameter of these follicles was smaller than those of controls in mature mice, whereas no significant difference was observed in premature mice. The canonical pathways of DEGs between control and Figla-reduced secondary follicles suggest that Figla up-regulates VDR/RXR activation and down-regulates stem cell pluripotency as well as estrogen signaling. We demonstrated for the first time that folliculogenesis of the secondary follicles of premature and mature mice may be regulated by different factors, such as Figla with its possible target genes, providing insights into optimal IVG conditions for adult and pre-pubertal females, respectively.
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Pyeon DB, Lee SE, Yoon JW, Park HJ, Park CO, Kim SH, Oh SH, Lee DG, Kim EY, Park SP. The antioxidant dieckol reduces damage of oxidative stress-exposed porcine oocytes and enhances subsequent parthenotes embryo development. Mol Reprod Dev 2021; 88:349-361. [PMID: 33843103 DOI: 10.1002/mrd.23466] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 12/24/2020] [Indexed: 12/13/2022]
Abstract
This study investigated the effect of the antioxidant dieckol, a component of Ecklonia cava, on maturation and developmental competence of porcine oocytes exposed to oxidative stress in vitro. Oocytes were matured in in vitro maturation (IVM) medium containing various concentrations of dieckol. The blastocyst formation rate was highest in the 0.5 μM dieckol-treated (0.5 DEK) group. The reactive oxygen species level was decreased, and the level of glutathione and expression of antioxidant genes (NFE2L, SOD1, and SOD2) at metaphase II were increased in the 0.5 DEK group. Abnormal spindle organization and chromosome misalignment were prevented in the 0.5 DEK group. Expression of maternal markers (CCNB1 and MOS) and activity of p44/42 mitogen-activated protein kinase were increased in the 0.5 DEK group. After parthenogenetic activation, the total number of cells per blastocyst was increased and the percentage of apoptotic cells was decreased in the 0.5 DEK group. Expression of development-related genes (CX45, CDX2, POU5F1, and NANOG), antiapoptotic genes (BCL2L1 and BIRC5), and a proapoptotic gene (CASP3) were altered in the 0.5 DEK group. These results indicate that the antioxidant dieckol improves IVM and subsequent development of porcine oocytes and can be used to improve the quality of oocytes under peroxidation experimental conditions.
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Affiliation(s)
- Da-Bin Pyeon
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju-si, Jeju Province, Korea
- Stem Cell Research Center, Jeju National University, Jeju-si, Jeju Province, Korea
| | - Seung-Eun Lee
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju-si, Jeju Province, Korea
- Stem Cell Research Center, Jeju National University, Jeju-si, Jeju Province, Korea
| | - Jae-Wook Yoon
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju-si, Jeju Province, Korea
- Stem Cell Research Center, Jeju National University, Jeju-si, Jeju Province, Korea
| | - Hyo-Jin Park
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju-si, Jeju Province, Korea
- Stem Cell Research Center, Jeju National University, Jeju-si, Jeju Province, Korea
| | - Chan-Oh Park
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju-si, Jeju Province, Korea
- Stem Cell Research Center, Jeju National University, Jeju-si, Jeju Province, Korea
| | - So-Hee Kim
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju-si, Jeju Province, Korea
- Stem Cell Research Center, Jeju National University, Jeju-si, Jeju Province, Korea
| | - Seung-Hwan Oh
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju-si, Jeju Province, Korea
- Stem Cell Research Center, Jeju National University, Jeju-si, Jeju Province, Korea
| | - Do-Geon Lee
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju-si, Jeju Province, Korea
- Stem Cell Research Center, Jeju National University, Jeju-si, Jeju Province, Korea
| | - Eun-Young Kim
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju-si, Jeju Province, Korea
- Stem Cell Research Center, Jeju National University, Jeju-si, Jeju Province, Korea
- Mirae Cell Bio, Seoul, Korea
| | - Se-Pill Park
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju-si, Jeju Province, Korea
- Stem Cell Research Center, Jeju National University, Jeju-si, Jeju Province, Korea
- Mirae Cell Bio, Seoul, Korea
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Cui W. Oocyte Spontaneous Activation: An Overlooked Cellular Event That Impairs Female Fertility in Mammals. Front Cell Dev Biol 2021; 9:648057. [PMID: 33763428 PMCID: PMC7982476 DOI: 10.3389/fcell.2021.648057] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Accepted: 02/08/2021] [Indexed: 01/14/2023] Open
Abstract
In mammals, including humans, mature oocytes are ovulated into the oviduct for fertilization. Normally, these oocytes are arrested at metaphase of the second meiosis (MII), and this arrest can be maintained for a certain period, which is essential for fertilization in vivo and oocyte manipulations in vitro, such as assisted reproduction in clinics and nuclear/spindle transfer in laboratories. However, in some species and under certain circumstances, exit from MII occurs spontaneously without any obvious stimulation or morphological signs, which is so-called oocyte spontaneous activation (OSA). This mini-review summarizes two types of OSA. In the first type (e.g., most rat strains), oocytes can maintain MII arrest in vivo, but once removed out, oocytes undergo OSA with sister chromatids separated and eventually scattered in the cytoplasm. Because the stimulation is minimal (oocyte collection itself), this OSA is incomplete and cannot force oocytes into interphase. Notably, once re-activated by sperm or chemicals, those scattered chromatids will form multiple pronuclei (MPN), which may recapitulate certain MPN and aneuploidy cases observed in fertility clinics. The second type of OSA occurs in ovarian oocytes (e.g., certain mouse strains and dromedary camel). Without ovulation or fertilization, these OSA-oocytes can initiate intrafollicular development, but these parthenotes cannot develop to term due to aberrant genomic imprinting. Instead, they either degrade or give rise to ovarian teratomas, which have also been reported in female patients. Last but not the least, genetic models displaying OSA phenotypes and the lessons we can learn from animal OSA for human reproduction are also discussed.
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Affiliation(s)
- Wei Cui
- Department of Veterinary and Animal Sciences, Animal Models Core Facility, Institute for Applied Life Sciences (IALS), University of Massachusetts Amherst, Amherst, MA, United States
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17
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Fazeli E, Hosseini A, Heidari MH, Farifteh-Nobijari F, Salehi M, Abbaszadeh HA, Nazarian H, Shams Mofarahe Z, Ayoubi S, Hosseini S, Shayeghpour M, Bandehpour M, Ghaffari Novin M. Meiosis Resumption of Immature Human Oocytes following Treatment with Calcium Ionophore In Vitro. CELL JOURNAL 2021; 23:109-118. [PMID: 33650827 PMCID: PMC7944122 DOI: 10.22074/cellj.2021.7130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2019] [Accepted: 11/13/2019] [Indexed: 11/10/2022]
Abstract
Objective: In vitro maturation (IVM) of human oocytes is used to induce meiosis progression in immature retrieved
oocytes. Calcium (Ca2+) has a central role in oocyte physiology. Passage through meiosis phase to another phase
is controlled by increasing intracellular Ca2+. Therefore, the current research was conducted to evaluate the role of
calcium ionophore (CI) on human oocyte IVM. Materials and Methods: In this clinical trial study, immature human oocytes were obtained from 216 intracytoplasmic
sperm injection (ICSI) cycles. After ovarian stimulation, germinal vesicle (GV) stage oocytes were collected and
categorized into two groups: with and without 10 µM CI treatment. Next, oocyte nuclear maturation was assessed after
24–28 hours of culture. Real-time reverse transcription polymerase chain reaction (RT-PCR) was used to assess the
transcript profile of several oocyte maturation-related genes (MAPK3, CCNB1, CDK1, and cyclin D1 [CCND1]) and
apoptotic-related genes (BCL-2, BAX, and Caspase-3). Oocyte glutathione (GSH) and reactive oxygen species (ROS)
levels were assessed using Cell Tracker Blue and 2’,7’-dichlorodihydrofluorescein diacetate (H2DCFDA) fluorescent
dye staining. Oocyte spindle configuration and chromosome alignment were analysed by immunocytochemistry. Results: The metaphase II (MII) oocyte rate was higher in CI‐treated oocytes (73.53%) compared to the control
(67.43%) group, but this difference was not statistically significant (P=0.13). The mRNA expression profile of oocyte
maturation-related genes (MAPK3, CCNB1, CDK1, and CCND1) (P<0.05) and the anti-apoptotic BCL-2 gene was
remarkably up-regulated after treatment with CI (P=0.001). The pro-apoptotic BAX and Caspase-3 relative expression
levels did not change significantly. The CI‐treated oocyte cytoplasm had significantly higher GSH and lower ROS
(P<0.05). There was no statistically significant difference in meiotic spindle assembly and chromosome alignment
between CI treatment and the control group oocytes. Conclusion: The finding of the current study supports the role of CI in meiosis resumption of human oocytes.
(Registration Number: IRCT20140707018381N4)
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Affiliation(s)
- Elham Fazeli
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Mehr Fertility Research Center, Guilan University of Medical Sciences, Rasht, Iran
| | - Ahmad Hosseini
- Mehr Fertility Research Center, Guilan University of Medical Sciences, Rasht, Iran
| | - Mohammad-Hasan Heidari
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fattaneh Farifteh-Nobijari
- Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Genetics and In Vitro Assisted Reproductive (GIVAR) Center, Erfan Hospital, Tehran, Iran
| | - Mohammad Salehi
- Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran Iran
| | - Hojjat-Allah Abbaszadeh
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hamid Nazarian
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Zahra Shams Mofarahe
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Saman Ayoubi
- Infertility and Reproductive Health Research Centre, Sara Hospital, Tehran, Iran
| | - Sara Hosseini
- Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mona Shayeghpour
- Genetics and In Vitro Assisted Reproductive (GIVAR) Center, Erfan Hospital, Tehran, Iran
| | - Mojgan Bandehpour
- Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran. .,Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran Iran
| | - Marefat Ghaffari Novin
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran. .,Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Cao Q, Zhao C, Wang C, Cai L, Xia M, Zhang X, Han J, Xu Y, Zhang J, Ling X, Ma X, Huo R. The Recurrent Mutation in PATL2 Inhibits Its Degradation Thus Causing Female Infertility Characterized by Oocyte Maturation Defect Through Regulation of the Mos-MAPK Pathway. Front Cell Dev Biol 2021; 9:628649. [PMID: 33614659 PMCID: PMC7890943 DOI: 10.3389/fcell.2021.628649] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 01/12/2021] [Indexed: 02/02/2023] Open
Abstract
PAT1 homolog 2 (PATL2), encoding an RNA-binding protein, is a repressor involved in the translational regulation of maternal mRNAs during oocyte maturation. Previous studies have reported mutations in PATL2 those led to female infertility with oocyte maturation arrest; however, the mechanisms by which mutations affected meiotic maturation remained unclear. Here, we identified several novel and recurrent mutations of PATL2 in patients with similar phenotype, and chose the missense mutation c.649 T>A p.Tyr217Asn in PATL2 (PATL2Y217N) as a typical to investigate the underlying mechanisms. We confirmed that this mutation disturbed oocyte maturation and observed morphological defects of large polar body, symmetrical division and abnormal spindle after microinjection of corresponding mutated mRNA. We further evaluated the effect of the PATL2Y217N mutation in 293T cells, and found this mutation decreased the ubiquitination level and degradation of PATL2. Then, abnormally increased PATL2 bound mRNAs of Mos, an upstream activator of mitogen activated protein kinase (MAPK), to regulate its translational activity and subsequently impaired MAPK signaling pathway and oocyte meiosis. These results dissented from the previous view that PATL2 mutations reduced their expression and highlight the role of PATL2 in translational regulation of Mos and its association with MAPK signaling pathway during oocyte meiotic maturation.
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Affiliation(s)
- Qiqi Cao
- State Key Laboratory of Reproductive Medicine, Department of Histology and Embryology, Suzhou Affiliated Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Nanjing, China
| | - Chun Zhao
- Department of Reproductive Medicine, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, China
| | - Congjing Wang
- State Key Laboratory of Reproductive Medicine, Department of Histology and Embryology, Suzhou Affiliated Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Nanjing, China
| | - Lingbo Cai
- Clinical Center of Reproductive Medicine, State Key Laboratory of Reproductive Medicine, First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Meng Xia
- Clinical Center of Reproductive Medicine, State Key Laboratory of Reproductive Medicine, First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Xiaolan Zhang
- Department of Reproductive Medicine, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, China
| | - Jian Han
- State Key Laboratory of Reproductive Medicine, Department of Histology and Embryology, Suzhou Affiliated Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Nanjing, China
| | - Yangyang Xu
- Clinical Center of Reproductive Medicine, State Key Laboratory of Reproductive Medicine, First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Junqiang Zhang
- Department of Reproductive Medicine, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, China
| | - Xiufeng Ling
- Department of Reproductive Medicine, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, China
| | - Xiang Ma
- Clinical Center of Reproductive Medicine, State Key Laboratory of Reproductive Medicine, First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Ran Huo
- State Key Laboratory of Reproductive Medicine, Department of Histology and Embryology, Suzhou Affiliated Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Nanjing, China.,Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
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19
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Zhao YH, Wang JJ, Zhang PP, Hao HS, Pang YW, Wang HY, Du WH, Zhao SJ, Ruan WM, Zou HY, Hao T, Zhu HB, Zhao XM. Oocyte IVM or vitrification significantly impairs DNA methylation patterns in blastocysts as analysed by single-cell whole-genome methylation sequencing. Reprod Fertil Dev 2021; 32:676-689. [PMID: 32317092 DOI: 10.1071/rd19234] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Accepted: 11/14/2019] [Indexed: 12/12/2022] Open
Abstract
To explore the mechanisms leading to the poor quality of IVF blastocysts, the single-cell whole-genome methylation sequencing technique was used in this study to analyse the methylation patterns of bovine blastocysts derived from invivo, fresh (IVF) or vitrified (V_IVF) oocytes. Genome methylation levels of blastocysts in the IVF and V_IVF groups were significantly lower than those of the invivo group (P<0.05). In all, 1149 differentially methylated regions (DMRs) were identified between the IVF and invivo groups, 1578 DMRs were identified between the V_IVF and invivo groups and 151 DMRs were identified between the V_IVF and IVF groups. For imprinted genes, methylation levels of insulin-like growth factor 2 receptor (IGF2R) and protein phosphatase 1 regulatory subunit 9A (PPP1R9A) were lower in the IVF and V_IVF groups than in the invivo group, and the methylation level of paternally expressed 3 (PEG3) was lower in the V_IVF group than in the IVF and invivo groups. Genes with DMRs between the IVF and invivo and the V_IVF and IVF groups were primarily enriched in oocyte maturation pathways, whereas DMRs between the V_IVF and invivo groups were enriched in fertilisation and vitrification-vulnerable pathways. The results of this study indicate that differences in the methylation of critical DMRs may contribute to the differences in quality between invitro- and invivo-derived embryos.
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Affiliation(s)
- Ya-Han Zhao
- Embryo Biotechnology and Reproduction Laboratory and the Centre of Domestic Animal Reproduction and Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, PR China
| | - Jing-Jing Wang
- Embryo Biotechnology and Reproduction Laboratory and the Centre of Domestic Animal Reproduction and Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, PR China
| | - Pei-Pei Zhang
- Embryo Biotechnology and Reproduction Laboratory and the Centre of Domestic Animal Reproduction and Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, PR China
| | - Hai-Sheng Hao
- Embryo Biotechnology and Reproduction Laboratory and the Centre of Domestic Animal Reproduction and Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, PR China
| | - Yun-Wei Pang
- Embryo Biotechnology and Reproduction Laboratory and the Centre of Domestic Animal Reproduction and Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, PR China
| | - Hao-Yu Wang
- Embryo Biotechnology and Reproduction Laboratory and the Centre of Domestic Animal Reproduction and Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, PR China
| | - Wei-Hua Du
- Embryo Biotechnology and Reproduction Laboratory and the Centre of Domestic Animal Reproduction and Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, PR China
| | - Shan-Jiang Zhao
- Embryo Biotechnology and Reproduction Laboratory and the Centre of Domestic Animal Reproduction and Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, PR China
| | - Wei-Min Ruan
- International Joint Center for Biomedical Innovation, School of Life Sciences, Henan University, Ming Lun Street, Kaifeng, Henan, 475004, PR China
| | - Hui-Ying Zou
- Embryo Biotechnology and Reproduction Laboratory and the Centre of Domestic Animal Reproduction and Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, PR China
| | - Tong Hao
- Embryo Biotechnology and Reproduction Laboratory and the Centre of Domestic Animal Reproduction and Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, PR China
| | - Hua-Bin Zhu
- Embryo Biotechnology and Reproduction Laboratory and the Centre of Domestic Animal Reproduction and Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, PR China
| | - Xue-Ming Zhao
- Embryo Biotechnology and Reproduction Laboratory and the Centre of Domestic Animal Reproduction and Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, PR China; and Corresponding author.
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20
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Hatirnaz S, Başbuğ A, Hatirnaz E, Tannus S, Hatirnaz K, Bakay K, Dahan MH. Can in vitro maturation overcome cycles with repeated oocyte maturation arrest? A classification system for maturation arrest and a cohort study. Int J Gynaecol Obstet 2020; 153:496-502. [PMID: 33216990 DOI: 10.1002/ijgo.13490] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 09/16/2020] [Accepted: 11/18/2020] [Indexed: 11/06/2022]
Abstract
OBJECTIVE To investigate the role of gonadotropin-stimulated and human chorionic gonadotropin (hCG) -primed in vitro oocyte maturation (IVM) in cases of repeated in vitro fertilization (IVF) failure due to various forms of oocyte maturation arrest (OMA). METHODS Retrospective cohort study. RESULTS In all, 63 women with IVF failure due to OMA were evaluated in this study. According to the Hatirnaz & Dahan classification, 11 (17.5%) women were OMA type 1, 22 (34.9%) were OMA type 2, 0 were OMA type 3, 11 (17.5%) were OMA type 4, and 19 women were OMA type 5 (30.1%). Fewer oocytes were retrieved in the IVM than in the IVF cycles. No embryos were produced from oocytes collected in the IVM cycles of women with OMA types 1, 2, and 4. In the OMA type 5 group, 9 (47.4%) day 2 embryos and 6 (31.6%) day 3 embryos were obtained. The difference between the groups was statistically significant (P = 0.001, P = 0.002, respectively). Single day 3 embryo transfer was performed for the six patients with OMA type 5 but no clinical pregnancies occurred. CONCLUSIONS Follicle-stimulating hormone-stimulated and hCG-primed IVM does not improve oocyte maturation, developmental potential, or pregnancy rates of women with OMA. Future studies directed to re-establishing normal cytoskeletal architecture and machinery, and resumption of meiosis may be beneficial for obtaining mature oocytes.
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Affiliation(s)
- Safak Hatirnaz
- IVF-IVM Center, Medicana International Hospital, Samsun, Turkey
| | - Alper Başbuğ
- Department of Obstetrics & Gynecology, School of Medicine, Düzce University, Düzce, Turkey
| | - Ebru Hatirnaz
- IVF-IVM Center, Medicana International Hospital, Samsun, Turkey
| | - Samer Tannus
- Department of Obstetrics & Gynecology, Galilee Medical Center affiliated to Bar-Ilan University, Naharia, Israel
| | - Kaan Hatirnaz
- Department of Molecular Biology, Faculty of Science, Ondokuzmayıs University, Samsun, Turkey
| | - Kadir Bakay
- Department of Obstetrics & Gynecology, School of Medicine, Ondokuzmayıs University, Samsun, Turkey
| | - Michael H Dahan
- Department of obstetrics gynecology, McGill University, Montreal, Canada
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21
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Cao LR, Jiang JC, Fan HY. Positive Feedback Stimulation of Ccnb1 and Mos mRNA Translation by MAPK Cascade During Mouse Oocyte Maturation. Front Cell Dev Biol 2020; 8:609430. [PMID: 33282880 PMCID: PMC7691486 DOI: 10.3389/fcell.2020.609430] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 10/26/2020] [Indexed: 12/12/2022] Open
Abstract
In mammalian species, both the maturation promoting factor (MPF) and the mitogen-activated protein kinase (MAPK) cascade play critical roles in modulating oocyte meiotic cell-cycle progression. MPF is a critical heterodimer composed of CDK1 and cyclin B1. Activation of MPF and ERK1/2 requires the activation of maternal Ccnb1 and Mos mRNAs translation, respectively. The phosphorylation and degradation of CPEB1 that triggered by ERK1/2 is a principal mechanism of activating maternal mRNA translation. However, the interplay of these two key kinases in mediating mammalian translational activation of cytoplasmic mRNAs during oocyte maturation is unclear. We prove evidence that the translational activation of Ccnb1 transcripts containing a long 3'-UTR during meiotic resumption works in an ERK1/2-dependent way. A low level of ERK1/2 activation was detected prior to meiotic resumption. Precocious activation of MAPK signaling in germinal vesicle stage oocytes promotes the translation of Ccnb1 mRNA and meiotic maturation. Inhibition or precocious activation of CDK1 activity has an appreciable effect on the translation of Ccnb1 mRNA, suggesting that both kinases are required for Ccnb1 mRNA translational activation. CDK1 triggers phosphorylation, but not degradation, of CPEB1 in oocytes; the degradation of CPEB1 was only triggered by ERK1/2. Moreover, the translational activation of Mos mRNA is regulated by ERK1/2 and cytoplasmic polyadenylation elements too. Taken together, the cooperation and positive feedback activation of ERK1/2 and CDK1 lead to the fine-tuning of mRNA translation and cell-cycle progression during mouse oocyte maturation.
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Affiliation(s)
- Lan-Rui Cao
- Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Jun-Chao Jiang
- Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Heng-Yu Fan
- Life Sciences Institute, Zhejiang University, Hangzhou, China
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22
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Kasman AAMN, Santoso B, Widjiati W. The effect of vitrification after warming on the expressions of p38, CDK1, and cyclin B in immature goat oocytes followed by in vitro maturation. Vet World 2020; 13:2126-2132. [PMID: 33281346 PMCID: PMC7704326 DOI: 10.14202/vetworld.2020.2126-2132] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 08/26/2020] [Indexed: 12/13/2022] Open
Abstract
Background and Aim The combination of vitrification techniques and in vitro maturation can reduce oocyte competence. Mitogen-activated protein kinase and maturation-promoting factor are significant in oocyte meiotic maturation regulation. This study aimed to analyze vitrification's effect, after warming followed by in vitro maturation, on the expressions of protein 38 (p38), cyclin-dependent kinase 1 (CDK1), and cyclin B and oocyte maturation level. Materials and Methods Immature goat oocytes were soaked in vitrification and warming solutions. The procedure was followed by in vitro maturation and in vitro maturation without post-warming vitrification as a control. These oocytes, along with their cumulus, were vitrified using hemistraw in liquid nitrogen. Oocyte maturation was carried out in a maturation medium that was added with 10 μg/mL of FSH, 10 μg/mL of LH, and 1 μg/mL E2 for 22 h. The expressions of p38, CDK1, and cyclin B were observed using immunocytochemical methods, which were assessed semiquantitatively according to the modified Remmele method. The oocyte maturation level was observed using the aceto-orcein staining method based on the achievement of chromosomes up to the metaphase II stage and/or the formation of the polar body I. Results p38 expression in vitrified oocytes after warming, followed by in vitro maturation, increased insignificantly (p≥0.05), with the acquisition of 3.91±2.69 and 2.69±0.50 in the control oocytes. CDK1 expression in vitrified oocytes decreased significantly (p≤0.05) after warming, followed by in vitro maturation, with the acquisition of 2.73±1.24 and 7.27±4.39 in the control oocytes. Cyclin B expression in vitrified oocytes decreased insignificantly (p≥0.05) after warming, followed by in vitro maturation, with the acquisition of 3.09±1.4 and 4.18±2.61 in the control oocytes. The proportion of vitrified oocyte maturation levels after warming, followed by in vitro maturation, decreased significantly (p≤0.05), with the acquisition of 45.45% and 77.27% in the control oocytes. Conclusion This study concluded that vitrification after warming resulted in an insignificant increase in p38 expression, a significant decrease in CDK1 expression, an insignificant decrease in cyclin B expression, and a significant reduction in oocyte maturation levels.
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Affiliation(s)
- A A Muhammad Nur Kasman
- Student of Doctoral Program Medicine Science, Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia.,Faculty of Health Science, Universitas Muhammadiyah Mataram, Mataram, Indonesia
| | - Budi Santoso
- Department of Obstetrics and Gynecology, Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia
| | - Widjiati Widjiati
- Department of Veterinary Anatomy, Faculty of Veterinary Medicine, Universitas Airlangga, Surabaya, Indonesia
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23
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Cao Y, Li R, Li W, Liu H, Cai Y. Melatonin Attenuates Peroxynitrite-Induced Meiosis Dysfunction in Porcine Oocytes. Reprod Sci 2020; 28:1281-1289. [PMID: 33006115 DOI: 10.1007/s43032-020-00331-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 09/20/2020] [Indexed: 11/30/2022]
Abstract
A high level of reactive oxygen species (ROS) is widely considered one of the major causes of oocyte quality decline. Peroxynitrite is known as a powerful oxidant, which could induce multiple physical diseases. Recently, emerging pieces of evidences indicate that melatonin effectively promotes the development of oocytes, although the specific work mechanism remains to be further clarified. In this study, it was shown that peroxynitrite increased the level of ROS in porcine oocytes, which induced the apoptosis of oocytes, thereby leading to the obstruction of spindle assembly, depolymerization of actin, and decrease of polar body expulsion. These negative effects contributed to the failure of meiosis and ultimately blocked the maturation of porcine oocytes. As expected, it was found that melatonin effectively removed the accumulated ROS in oocytes, preventing oocytes from peroxynitrite-induced oocyte maturation failure, which might provide a novel approach to improve female livestock reproduction and cure female infertility in clinical practice.
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Affiliation(s)
- Yan Cao
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Rongyang Li
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Weijian Li
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Honglin Liu
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yafei Cai
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China.
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24
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Sha QQ, Zhang J, Fan HY. A story of birth and death: mRNA translation and clearance at the onset of maternal-to-zygotic transition in mammals†. Biol Reprod 2020; 101:579-590. [PMID: 30715134 DOI: 10.1093/biolre/ioz012] [Citation(s) in RCA: 103] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 01/18/2019] [Accepted: 01/30/2019] [Indexed: 01/01/2023] Open
Abstract
In mammals, maternal-to-zygotic transition (MZT), or oocyte-to-embryo transition, begins with oocyte meiotic resumption due to the sequential translational activation and destabilization of dormant maternal transcripts stored in the ooplasm. It then continues with the elimination of maternal transcripts during oocyte maturation and fertilization and ends with the full transcriptional activation of the zygotic genome during embryonic development. A hallmark of MZT in mammals is its reliance on translation and the utilization of stored RNAs and proteins, rather than de novo transcription of genes, to sustain meiotic maturation and early development. Impaired maternal mRNA clearance at the onset of MZT prevents zygotic genome activation and causes early arrest of developing embryos. In this review, we discuss recent advances in our knowledge of the mechanisms whereby mRNA translation and degradation are controlled by cytoplasmic polyadenylation and deadenylation which set up the competence of maturing oocyte to accomplish MZT. The emphasis of this review is on the mouse as a model organism for mammals and BTG4 as a licensing factor of MZT under the translational control of the MAPK cascade.
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Affiliation(s)
- Qian-Qian Sha
- MOE Key Laboratory for Biosystems Homeostasis & Protection and Innovation Center for Cell Signaling Network, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Jue Zhang
- MOE Key Laboratory for Biosystems Homeostasis & Protection and Innovation Center for Cell Signaling Network, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Heng-Yu Fan
- MOE Key Laboratory for Biosystems Homeostasis & Protection and Innovation Center for Cell Signaling Network, Life Sciences Institute, Zhejiang University, Hangzhou, China.,Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province; Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
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25
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Wang JJ, Niu MH, Zhang T, Shen W, Cao HG. Genome-Wide Network of lncRNA-mRNA During Ovine Oocyte Development From Germinal Vesicle to Metaphase II in vitro. Front Physiol 2020; 11:1019. [PMID: 32973554 PMCID: PMC7461901 DOI: 10.3389/fphys.2020.01019] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 07/24/2020] [Indexed: 12/19/2022] Open
Abstract
Long non-coding RNA (lncRNA) is involved in many biological processes, and it has been closely investigated. However, research into the role of lncRNA in ovine ovarian development is scant and poorly understood, particularly in relation to the molecular mechanisms of ovine oocyte maturation. In the current study, RNA sequencing was performed with germinal vesicle (GV) and in vitro matured metaphase II (MII) stage oocytes, isolated from ewes. Through the use of bioinformatic analysis, abundant candidate lncRNAs in stage-specific ovine oocytes were identified, and their trans- and cis-regulatory effects were deeply dissected using computational prediction software. Functional enrichment analysis of these lncRNAs revealed that they were involved in the regulation of many key signaling pathways during ovine oocyte development, which was reflected by their targeted genes. From this study, multiple lncRNA-mRNA networks were presumed to be involved in key signaling pathways regarding ovine oocyte maturation and meiotic resumption. In particular, one novel lncRNA (MSTRG.17927) appeared to mediate the regulation of phosphatidylinositol 3-kinase signaling (PI3K) signaling during ovine oocyte maturation. Therefore, this research offers novel insights into the molecular mechanisms underlying ovine oocyte meiotic maturation regulated by lncRNA-mRNA networks from a genome-wide perspective.
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Affiliation(s)
- Jun-Jie Wang
- Anhui Province Key Laboratory of Local Livestock and Poultry Genetic Resource Conservation and Bio-breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, China.,Key Laboratory of Animal Reproduction and Germplasm Enhancement in Universities of Shandong, College of Life Sciences, Qingdao Agricultural University, Qingdao, China
| | - Meng-Han Niu
- Anhui Province Key Laboratory of Local Livestock and Poultry Genetic Resource Conservation and Bio-breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Teng Zhang
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot, China
| | - Wei Shen
- Key Laboratory of Animal Reproduction and Germplasm Enhancement in Universities of Shandong, College of Life Sciences, Qingdao Agricultural University, Qingdao, China
| | - Hong-Guo Cao
- Anhui Province Key Laboratory of Local Livestock and Poultry Genetic Resource Conservation and Bio-breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
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26
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Zhan C, Zhang F, Liu W, Zhang X. Microcystin-LR promotes zebrafish (Danio rerio) oocyte (in vivo) maturation by activating ERK1/2-MPF signaling pathways, and cAMP is involved in this process. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 259:113843. [PMID: 31887595 DOI: 10.1016/j.envpol.2019.113843] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 11/28/2019] [Accepted: 12/16/2019] [Indexed: 06/10/2023]
Abstract
Cyanobacterial blooms and their secondary metabolites, microcystins (MCs), are not only toxic to aquatic organisms, but also to humans. MCs exert reproductive toxicity in female fish by affecting the oocyte development. However, the mechanism behind MC-LR interference in oocyte development remains largely unknown. In our study, adult female zebrafish were exposed to MC-LR (0, 1, 5, 20 μg/L) for 30 d. After exposure to MC-LR for 30 d, fertilized eggs from the treated females and healthy males were collected and cultured in water without MC-LR. Histomorphological observations showed pathological damage in the ovary after MC-LR exposure, which was mainly characterized by enlarged intercellular spaces, detachment of follicular cells from oocytes, and vacuolation of parenchymal tissues. The 20 μg/L MC-LR treatment caused a remarkable increase in the rate of the zebrafish oocytes germinal vesicle breakdown (GVBD) and a significant decrease in the levels of cyclic adenosine monophosphate (cAMP) and vitellogenin (VTG). In addition, the phosphorylation levels of the extracellular signal-regulated kinases (ERK) were elevated in ovaries from zebrafish exposed to 5 and 20 μg/L MC-LR, and cyclinB phosphorylation levels were also upregulated notably in the 20 μg/L MC-LR group. However, MC-LR exposure did not cause any change in the levels of cAMP-dependent protein kinase (PKA) protein and cdc2 phosphorylation in all the treatments. All the doses of MC-LR reduced the number of eggs, prematurely hatched the fertilized eggs and increased the abnormal rate of offspring generation. In summary, the present study demonstrates that MC-LR promotes oocyte maturation by activating the ERK1/2 and MPF signaling pathways, and cAMP is involved in this process.
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Affiliation(s)
- Chunhua Zhan
- College of Fisheries, Huazhong Agricultural University, Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan 430070, China
| | - Feng Zhang
- College of Fisheries, Huazhong Agricultural University, Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan 430070, China
| | - Wanjing Liu
- College of Fisheries, Huazhong Agricultural University, Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan 430070, China
| | - Xuezhen Zhang
- College of Fisheries, Huazhong Agricultural University, Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan 430070, China.
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Desmarchais A, Téteau O, Papillier P, Jaubert M, Druart X, Binet A, Maillard V, Elis S. Bisphenol S Impaired In Vitro Ovine Early Developmental Oocyte Competence. Int J Mol Sci 2020; 21:ijms21041238. [PMID: 32059612 PMCID: PMC7072985 DOI: 10.3390/ijms21041238] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 02/06/2020] [Accepted: 02/11/2020] [Indexed: 02/07/2023] Open
Abstract
INTRODUCTION Bisphenol A (BPA) is a widespread compound in the plastic industry that is especially used to produce baby bottles, food packaging and metal cans. BPA, an endocrine disruptor, leads to alterations in reproductive function and therefore has been banned from the food industry. Unregulated BPA analogues, particularly Bisphenol S (BPS), have emerged and are now used in the plastic industry. Thus, this study aimed to examine the acute effects of low and environmental doses of BPS on ewe oocyte quality and developmental competence, and its mechanism of action, during in vitro maturation. METHODS Ewe cumulus-oocyte complexes underwent in vitro maturation in the presence or absence of BPS (1 nM, 10 nM, 100 nM, 1 µM or 10 µM). Oocytes were then subjected to in vitro fertilisation and development. RESULTS 1 µM BPS induced a 12.7% decrease in the cleavage rate (p = 0.004) and a 42.6% decrease in the blastocyst rate (p = 0.017) compared to control. The blastocyst rate reduction was also observed with 10 nM BPS. Furthermore, 10 µM BPS reduced the oocyte maturation rate, and 1 µM BPS decreased cumulus cell progesterone secretion. PR and AMH gene expression were reduced in cumulus cells. BPS induced a 5-fold increase in MAPK 3/1 activation (p = 0.04). CONCLUSIONS BPS impaired ewe oocyte developmental competence. The data suggest that BPS might not be a safe BPA analogue. Further studies are required to elucidate its detailed mechanism of action.
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Affiliation(s)
- Alice Desmarchais
- UMR PRC, CNRS, IFCE, INRAE, Université de Tours, 37380 Nouzilly, France; (A.D.); (O.T.); (P.P.); (M.J.); (X.D.); (A.B.); (V.M.)
| | - Ophélie Téteau
- UMR PRC, CNRS, IFCE, INRAE, Université de Tours, 37380 Nouzilly, France; (A.D.); (O.T.); (P.P.); (M.J.); (X.D.); (A.B.); (V.M.)
| | - Pascal Papillier
- UMR PRC, CNRS, IFCE, INRAE, Université de Tours, 37380 Nouzilly, France; (A.D.); (O.T.); (P.P.); (M.J.); (X.D.); (A.B.); (V.M.)
| | - Manon Jaubert
- UMR PRC, CNRS, IFCE, INRAE, Université de Tours, 37380 Nouzilly, France; (A.D.); (O.T.); (P.P.); (M.J.); (X.D.); (A.B.); (V.M.)
| | - Xavier Druart
- UMR PRC, CNRS, IFCE, INRAE, Université de Tours, 37380 Nouzilly, France; (A.D.); (O.T.); (P.P.); (M.J.); (X.D.); (A.B.); (V.M.)
| | - Aurélien Binet
- UMR PRC, CNRS, IFCE, INRAE, Université de Tours, 37380 Nouzilly, France; (A.D.); (O.T.); (P.P.); (M.J.); (X.D.); (A.B.); (V.M.)
- CHRU de Tours, 37000 Tours, France
| | - Virginie Maillard
- UMR PRC, CNRS, IFCE, INRAE, Université de Tours, 37380 Nouzilly, France; (A.D.); (O.T.); (P.P.); (M.J.); (X.D.); (A.B.); (V.M.)
| | - Sebastien Elis
- UMR PRC, CNRS, IFCE, INRAE, Université de Tours, 37380 Nouzilly, France; (A.D.); (O.T.); (P.P.); (M.J.); (X.D.); (A.B.); (V.M.)
- Correspondence: ; Tel.: +33-2-47427598; Fax: +33-2-47427743
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28
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Idrees M, Xu L, Song SH, Joo MD, Lee KL, Muhammad T, El Sheikh M, Sidrat T, Kong IK. PTPN11 (SHP2) Is Indispensable for Growth Factors and Cytokine Signal Transduction During Bovine Oocyte Maturation and Blastocyst Development. Cells 2019; 8:cells8101272. [PMID: 31635340 PMCID: PMC6830097 DOI: 10.3390/cells8101272] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 10/05/2019] [Accepted: 10/15/2019] [Indexed: 12/12/2022] Open
Abstract
This study was aimed to investigate the role of SHP2 (Src-homology-2-containing phosphotyrosine phosphatase) in intricate signaling networks invoked by bovine oocyte to achieve maturation and blastocyst development. PTPN11 (Protein Tyrosine Phosphatase, non-receptor type 11) encoding protein SHP2, a positive transducer of RTKs (Receptor Tyrosine Kinases) and cytokine receptors, can play a significant role in bovine oocyte maturation and embryo development, but this phenomenon has not yet been explored. Here, we used different growth factors, cytokines, selective activator, and a specific inhibitor of SHP2 to ascertain its role in bovine oocyte developmental stages in vitro. We found that SHP2 became activated by growth factors and cytokines treatment and was highly involved in the activation of oocyte maturation and embryo development pathways. Activation of SHP2 triggered MAPK (mitogen-activated protein kinases) and PI3K/AKT (Phosphoinositide 3-kinase/Protein kinase B) signaling cascades, which is not only important for GVBD (germinal vesical breakdown) induction but also for maternal mRNA translation. Inhibition of phosphatase activity of SHP2 with PHPS1 (Phenylhydrazonopyrazolone sulfonate 1) reduced oocytes maturation as well as bovine blastocyst ICM (inner cell mass) volume. Supplementation of LIF (Leukemia Inhibitory Factor) to embryos showed an unconventional direct relation between p-SHP2 and p-STAT3 (Signal transducer and activator of transcription 3) for blastocyst ICM development. Other than growth factors and cytokines, cisplatin was used to activate SHP2. Cisplatin activated SHP2 modulate growth factors effect and combine treatment significantly enhanced quality and rate of developed blastocysts.
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Affiliation(s)
- Muhammad Idrees
- Division of Applied Life Science (BK21 Plus), Gyeongsang National University, Jinju 52828, Gyeongnam Province, Korea.
| | - Lianguang Xu
- Division of Applied Life Science (BK21 Plus), Gyeongsang National University, Jinju 52828, Gyeongnam Province, Korea.
| | - Seok-Hwan Song
- Division of Applied Life Science (BK21 Plus), Gyeongsang National University, Jinju 52828, Gyeongnam Province, Korea.
| | - Myeong-Don Joo
- Division of Applied Life Science (BK21 Plus), Gyeongsang National University, Jinju 52828, Gyeongnam Province, Korea.
| | | | - Tahir Muhammad
- Division of Applied Life Science (BK21 Plus), Gyeongsang National University, Jinju 52828, Gyeongnam Province, Korea.
| | - Marwa El Sheikh
- Division of Applied Life Science (BK21 Plus), Gyeongsang National University, Jinju 52828, Gyeongnam Province, Korea.
| | - Tabinda Sidrat
- Division of Applied Life Science (BK21 Plus), Gyeongsang National University, Jinju 52828, Gyeongnam Province, Korea.
| | - Il-Keun Kong
- Division of Applied Life Science (BK21 Plus), Gyeongsang National University, Jinju 52828, Gyeongnam Province, Korea.
- The King Kong Ltd., Daegu 43017, Korea.
- Institute of Agriculture and Life Science, Gyeongsang National University, Jinju 52828, Gyeongnam Province, Korea.
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Liu W, Zhan C, Zhang T, Zhang X. Microcystin-LR influences the in vitro oocyte maturation of zebrafish by activating the MAPK pathway. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2019; 215:105261. [PMID: 31419757 DOI: 10.1016/j.aquatox.2019.105261] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 06/14/2019] [Accepted: 07/16/2019] [Indexed: 06/10/2023]
Abstract
Harmful cyanobacteria and their production of microcystins (MCs) exert significant toxicity on reproduction of fish, especially the process of oogenesis. Our previous studies demonstrated that MCs have negative impacts on the quantity and quality of mature oocytes in female zebrafish. However, the underlying mechanisms of MCs disrupting oocyte maturation (OM) have been rarely reported. In the present study, in vitro oocytes (immature) were separated from zebrafish and treated with 1, 10, 100 μg/L MC-LR. The serine/threonine protein phosphatase 2A (PP2A) activity was downregulated significantly in oocytes exposed to 10 and 100 μg/L MC-LR for both 2 and 4 h. The phosphorylation levels of mitogen-activated protein kinase (MAPK) were detected without noticeable change in all oocytes treated with MC-LR for 2 h, whereas the activated levels of MAPK subtypes (ERK, p38 and JNK) increased remarkably in the 100 μg/L MC-LR treatment of 4 h. In the oocytes exposed to 100 μg/L MC-LR for 4 h, germinal vesicle breakdown (GVBD) rates changed abnormally and maturation-promoting factor (MPF) activity increased significantly, in accordance with the upregulation of Cyclin B protein levels. Moreover, the MAPK inhibitors (10 μM) were applied to explore the role of MAPK subtypes during MC-LR influencing OM and results showed that ERK inhibitor U0126 and p38 inhibitor SB203580 mitigated the effects of 100 μg/L MC-LR-induced MAPK hyper-phosphorylation and elevated GVBD in the oocytes. In conclusion, the present study indicates that microcystins disrupt the meiotic maturation by the pathway of MC-PP2A-MAPK-OM due to the phosphorylation disorder in oocytes.
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Affiliation(s)
- Wanjing Liu
- College of Fisheries, Huazhong Agricultural University, Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan, 430070, China
| | - Chunhua Zhan
- College of Fisheries, Huazhong Agricultural University, Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan, 430070, China
| | - Tongzhou Zhang
- College of Fisheries, Huazhong Agricultural University, Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan, 430070, China
| | - Xuezhen Zhang
- College of Fisheries, Huazhong Agricultural University, Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan, 430070, China.
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Jeong SG, Lee SE, Kim WJ, Park YG, Yoon JW, Park CO, Park HJ, Kim EY, Park SP. Pioglitazone improves porcine oocyte maturation and subsequent parthenogenetic embryo development in vitro by increasing lipid metabolism. Mol Reprod Dev 2019; 86:1245-1254. [PMID: 31429176 DOI: 10.1002/mrd.23252] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Accepted: 06/30/2019] [Indexed: 12/17/2022]
Abstract
Optimization of culture conditions is important to improve oocyte maturation and subsequent embryo development. In particular, this study analyzed the effects of increasing concentrations of PIO in the maturation medium on spindle formation and chromosome alignment, glutathione, and intracellular ROS levels and expression of selected genes related to maternal markers, apoptosis, and lipid metabolism. The percentage of oocytes displaying normal spindle formation and chromosome alignment was higher in the 1 µM PIO (1 PIO)-treated group than in the control group. The glutathione level was significantly higher in the 1 PIO-treated group than in the control group, while the reactive oxygen species level did not differ. Expression of maternal marker (MOS and GDF9), antiapoptotic (BIRC5), and lipid metabolism-related (ACADS, CPT2, SREBF1, and PPARG) genes was higher in the 1 PIO-treated group than in the control group, while expression of a proapoptotic gene (CASP3) was lower. The blastocyst formation rate and the percentage of blastocysts that reached at least the hatching stage on Days 6 and 7, and the percentage of blastocysts containing more than 128 cells were significantly higher in the 1 PIO-treated group than in the control group. These results indicate that PIO treatment during in vitro maturation improves porcine oocyte maturation and subsequent parthenogenetic embryo development mainly by enhancing lipid metabolism and antioxidant defense in oocytes.
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Affiliation(s)
- Sang-Gi Jeong
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju-si, Korea.,Stem Cell Research Center, Jeju National University, Jeju-si, Korea
| | - Seung-Eun Lee
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju-si, Korea.,Stem Cell Research Center, Jeju National University, Jeju-si, Korea
| | - Won-Jae Kim
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju-si, Korea.,Stem Cell Research Center, Jeju National University, Jeju-si, Korea
| | - Yun-Gwi Park
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju-si, Korea.,Stem Cell Research Center, Jeju National University, Jeju-si, Korea
| | - Jae-Wook Yoon
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju-si, Korea.,Stem Cell Research Center, Jeju National University, Jeju-si, Korea
| | - Chan-Oh Park
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju-si, Korea.,Stem Cell Research Center, Jeju National University, Jeju-si, Korea
| | - Hyo-Jin Park
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju-si, Korea.,Stem Cell Research Center, Jeju National University, Jeju-si, Korea
| | - Eun-Young Kim
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju-si, Korea.,Stem Cell Research Center, Jeju National University, Jeju-si, Korea.,Mirae Cell Bio, Seoul, Korea
| | - Se-Pill Park
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju-si, Korea.,Stem Cell Research Center, Jeju National University, Jeju-si, Korea.,Mirae Cell Bio, Seoul, Korea
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Christou-Kent M, Kherraf ZE, Amiri-Yekta A, Le Blévec E, Karaouzène T, Conne B, Escoffier J, Assou S, Guttin A, Lambert E, Martinez G, Boguenet M, Fourati Ben Mustapha S, Cedrin Durnerin I, Halouani L, Marrakchi O, Makni M, Latrous H, Kharouf M, Coutton C, Thierry-Mieg N, Nef S, Bottari SP, Zouari R, Issartel JP, Ray PF, Arnoult C. PATL2 is a key actor of oocyte maturation whose invalidation causes infertility in women and mice. EMBO Mol Med 2019; 10:emmm.201708515. [PMID: 29661911 PMCID: PMC5938616 DOI: 10.15252/emmm.201708515] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
The genetic causes of oocyte meiotic deficiency (OMD), a form of primary infertility characterised by the production of immature oocytes, remain largely unexplored. Using whole exome sequencing, we found that 26% of a cohort of 23 subjects with OMD harboured the same homozygous nonsense pathogenic mutation in PATL2, a gene encoding a putative RNA‐binding protein. Using Patl2 knockout mice, we confirmed that PATL2 deficiency disturbs oocyte maturation, since oocytes and zygotes exhibit morphological and developmental defects, respectively. PATL2's amphibian orthologue is involved in the regulation of oocyte mRNA as a partner of CPEB. However, Patl2's expression profile throughout oocyte development in mice, alongside colocalisation experiments with Cpeb1, Msy2 and Ddx6 (three oocyte RNA regulators) suggest an original role for Patl2 in mammals. Accordingly, transcriptomic analysis of oocytes from WT and Patl2−/− animals demonstrated that in the absence of Patl2, expression levels of a select number of highly relevant genes involved in oocyte maturation and early embryonic development are deregulated. In conclusion, PATL2 is a novel actor of mammalian oocyte maturation whose invalidation causes OMD in humans.
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Affiliation(s)
- Marie Christou-Kent
- Genetics, Epigenetics and Therapies of Infertility, Institute for Advanced Biosciences, Inserm U1209, CNRS UMR 5309, Université Grenoble Alpes, Grenoble, France
| | - Zine-Eddine Kherraf
- Genetics, Epigenetics and Therapies of Infertility, Institute for Advanced Biosciences, Inserm U1209, CNRS UMR 5309, Université Grenoble Alpes, Grenoble, France
| | - Amir Amiri-Yekta
- Genetics, Epigenetics and Therapies of Infertility, Institute for Advanced Biosciences, Inserm U1209, CNRS UMR 5309, Université Grenoble Alpes, Grenoble, France.,UM GI-DPI, CHU de Grenoble, Grenoble, France.,Department of Genetics, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Emilie Le Blévec
- Genetics, Epigenetics and Therapies of Infertility, Institute for Advanced Biosciences, Inserm U1209, CNRS UMR 5309, Université Grenoble Alpes, Grenoble, France
| | - Thomas Karaouzène
- Genetics, Epigenetics and Therapies of Infertility, Institute for Advanced Biosciences, Inserm U1209, CNRS UMR 5309, Université Grenoble Alpes, Grenoble, France
| | - Béatrice Conne
- Department of Genetic Medicine and Development, University of Geneva Medical School, Geneva, Switzerland
| | - Jessica Escoffier
- Genetics, Epigenetics and Therapies of Infertility, Institute for Advanced Biosciences, Inserm U1209, CNRS UMR 5309, Université Grenoble Alpes, Grenoble, France
| | - Said Assou
- IRMB, INSERM U1183, CHRU Montpellier, Université Montpellier, Montpellier, France
| | - Audrey Guttin
- Grenoble Neuroscience Institute, INSERM 1216, Université Grenoble Alpes, Grenoble, France
| | - Emeline Lambert
- Genetics, Epigenetics and Therapies of Infertility, Institute for Advanced Biosciences, Inserm U1209, CNRS UMR 5309, Université Grenoble Alpes, Grenoble, France
| | - Guillaume Martinez
- Genetics, Epigenetics and Therapies of Infertility, Institute for Advanced Biosciences, Inserm U1209, CNRS UMR 5309, Université Grenoble Alpes, Grenoble, France.,UM GI-DPI, CHU de Grenoble, Grenoble, France.,UM de Génétique Chromosomique, CHU de Grenoble, Grenoble, France
| | - Magalie Boguenet
- Genetics, Epigenetics and Therapies of Infertility, Institute for Advanced Biosciences, Inserm U1209, CNRS UMR 5309, Université Grenoble Alpes, Grenoble, France
| | | | - Isabelle Cedrin Durnerin
- Service de Médecine de la Reproduction, Centre Hospitalier Universitaire Jean Verdier, Assistance Publique - Hôpitaux de Paris, Bondy, France
| | - Lazhar Halouani
- Polyclinique les Jasmins, Centre d'Aide Médicale à la Procréation, Centre Urbain Nord, Tunis, Tunisia
| | - Ouafi Marrakchi
- Polyclinique les Jasmins, Centre d'Aide Médicale à la Procréation, Centre Urbain Nord, Tunis, Tunisia
| | - Mounir Makni
- Polyclinique les Jasmins, Centre d'Aide Médicale à la Procréation, Centre Urbain Nord, Tunis, Tunisia
| | - Habib Latrous
- Polyclinique les Jasmins, Centre d'Aide Médicale à la Procréation, Centre Urbain Nord, Tunis, Tunisia
| | - Mahmoud Kharouf
- Polyclinique les Jasmins, Centre d'Aide Médicale à la Procréation, Centre Urbain Nord, Tunis, Tunisia
| | - Charles Coutton
- Genetics, Epigenetics and Therapies of Infertility, Institute for Advanced Biosciences, Inserm U1209, CNRS UMR 5309, Université Grenoble Alpes, Grenoble, France.,UM GI-DPI, CHU de Grenoble, Grenoble, France.,UM de Génétique Chromosomique, CHU de Grenoble, Grenoble, France
| | | | - Serge Nef
- Department of Genetic Medicine and Development, University of Geneva Medical School, Geneva, Switzerland
| | - Serge P Bottari
- Genetics, Epigenetics and Therapies of Infertility, Institute for Advanced Biosciences, Inserm U1209, CNRS UMR 5309, Université Grenoble Alpes, Grenoble, France
| | - Raoudha Zouari
- Polyclinique les Jasmins, Centre d'Aide Médicale à la Procréation, Centre Urbain Nord, Tunis, Tunisia
| | - Jean Paul Issartel
- Grenoble Neuroscience Institute, INSERM 1216, Université Grenoble Alpes, Grenoble, France
| | - Pierre F Ray
- Genetics, Epigenetics and Therapies of Infertility, Institute for Advanced Biosciences, Inserm U1209, CNRS UMR 5309, Université Grenoble Alpes, Grenoble, France.,UM GI-DPI, CHU de Grenoble, Grenoble, France
| | - Christophe Arnoult
- Genetics, Epigenetics and Therapies of Infertility, Institute for Advanced Biosciences, Inserm U1209, CNRS UMR 5309, Université Grenoble Alpes, Grenoble, France
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32
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Ferré-Pujol P, Nguyen XK, Nagahara T, Bui TTM, Wakai T, Funahashi H. Removal of cumulus cells around 20 h after the start of in vitro maturation improves the meiotic competence of porcine oocytes via reduction in cAMP and cGMP levels. J Reprod Dev 2019; 65:177-182. [PMID: 30745497 PMCID: PMC6473111 DOI: 10.1262/jrd.2018-130] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
We examined the effect of the timing of removing cumulus cells surrounding porcine oocytes from small follicles (SFs, < 3 mm in diameter) and medium follicles (MFs; 3–6 mm in diameter)
on the meiotic and developmental competence of the oocytes. Cumulus-oocyte complexes (COCs) were collected from SFs and MFs, and the oocytes were denuded at 0, 20, and 44 h after the start
of in vitro maturation (IVM), and the meiotic progression of the oocytes was assessed at the end of the IVM period. The incidence of mature oocytes was significantly
affected by both the origin of the COCs and the time when the oocytes were denuded. Although the percentage of mature oocytes was always higher when the COCs were collected from MFs than
that when the COCs were collected from SFs, the maturation rate was significantly higher when the oocytes were denuded at 20 h than when they were denuded at 44 h after the start of IVM.
When the mature oocytes were activated electrically, the developmental competence of the oocytes denuded at 20 and 44 h to reach the blastocyst stage did not differ, whereas the competence
of the MF-derived oocytes was significantly higher than that of SF-derived oocytes. When the intracellular cAMP and cGMP levels in SF-derived oocytes were examined at 24 h of IVM, the levels
of both were significantly decreased only in the oocytes denuded at 20 h. In conclusion, denuding oocytes at 20 h of IVM caused a significant reduction in ooplasmic cAMP and cGMP levels and
increased the meiotic competence of the oocytes without any reduction in blastocyst formation, even in the case of SF-derived oocytes.
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Affiliation(s)
- Pilar Ferré-Pujol
- Department of Animal Science, Graduate School of Environmental and Life Science, Okayama University, Okayama 700-8530, Japan
| | - Xuan Khanh Nguyen
- Department of Animal Science, Graduate School of Environmental and Life Science, Okayama University, Okayama 700-8530, Japan.,Department of Veterinary and Animal Science, Nong Lam University, Ho Chi Minh City, Vietnam
| | - Tomoki Nagahara
- Department of Animal Science, Graduate School of Environmental and Life Science, Okayama University, Okayama 700-8530, Japan
| | - Thi Tra Mi Bui
- Department of Animal Science, Graduate School of Environmental and Life Science, Okayama University, Okayama 700-8530, Japan.,Department of Veterinary and Animal Science, Nong Lam University, Ho Chi Minh City, Vietnam
| | - Takuya Wakai
- Department of Animal Science, Graduate School of Environmental and Life Science, Okayama University, Okayama 700-8530, Japan
| | - Hiroaki Funahashi
- Department of Animal Science, Graduate School of Environmental and Life Science, Okayama University, Okayama 700-8530, Japan
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Abstract
A central dogma of mammalian reproductive biology is that the size of the primordial follicle pool represents reproductive capacity in females. The assembly of the primordial follicle starts after the primordial germ cells (PGCs)-derived oocyte releases from the synchronously dividing germline cysts. PGCs initiate meiosis during fetal development. However, after synapsis and recombination of homologous chromosomes, they arrest at the diplotene stage of the first meiotic prophase (MI). The diplotene-arrested oocyte, together with the surrounding of a single layer of flattened granulosa cells, forms a basic unit of the ovary, the primordial follicle. At the start of each estrous (animal) or menstrual cycle (human), in response to a surge of luteinizing hormone (LH) from the pituitary gland, a limited number of primordial follicles are triggered to develop into primary follicles, preantral follicles, antral follicles and reach to preovulatory follicle stage. During the transition from the preantral to antral stages, the enclosed oocyte gradually acquires the capacity to resume meiosis. Meiotic resumption from the prophase of MI is morphologically characterized by the dissolution of the oocyte nuclear envelope, which is generally termed the "germinal vesicle breakdown" (GVBD). Following GVBD and completion of MI, the oocyte enters meiosis II without an obvious S-phase and arrests at metaphase phase II (MII) until fertilization. The underlying mechanism of meiotic arrest has been widely explored in numerous studies. Many studies indicated that two cellular second messengers, cyclic adenosine monophosphate (cAMP) and cyclic guanosine monophosphate (cGMP) play an essential role in maintaining oocyte meiotic arrest. This review will discuss how these two cyclic nucleotides regulate oocyte maturation by blocking or initiating meiotic processes, and to provide an insight in future research.
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Affiliation(s)
- Bo Pan
- Department of Animal Biosciences, University of Guelph, 50 Stone Road E, Building #70, Guelph, ON, N1G 2W1, Canada
| | - Julang Li
- Department of Animal Biosciences, University of Guelph, 50 Stone Road E, Building #70, Guelph, ON, N1G 2W1, Canada.
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Huelgas-Morales G, Greenstein D. Control of oocyte meiotic maturation in C. elegans. Semin Cell Dev Biol 2018; 84:90-99. [PMID: 29242146 PMCID: PMC6019635 DOI: 10.1016/j.semcdb.2017.12.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Revised: 10/25/2017] [Accepted: 12/08/2017] [Indexed: 10/18/2022]
Abstract
In virtually all sexually reproducing animals, oocytes arrest in meiotic prophase and resume meiosis in a conserved biological process called meiotic maturation. Meiotic arrest enables oocytes, which are amongst the largest cells in an organism, to grow and accumulate the necessary cellular constituents required to support embryonic development. Oocyte arrest can be maintained for a prolonged period, up to 50 years in humans, and defects in the meiotic maturation process interfere with the faithful segregation of meiotic chromosomes, representing the leading cause of human birth defects and female infertility. Hormonal signaling and interactions with somatic cells of the gonad control the timing of oocyte meiotic maturation. Signaling activates the CDK1/cyclin B kinase, which plays a central role in regulating the nuclear and cytoplasmic events of meiotic maturation. Nuclear maturation encompasses nuclear envelope breakdown, meiotic spindle assembly, and chromosome segregation whereas cytoplasmic maturation involves major changes in oocyte protein translation and cytoplasmic organelles and is less well understood. Classically, meiotic maturation has been studied in organisms with large oocytes to facilitate biochemical analysis. Recently, the nematode Caenorhabditis elegans is emerging as a genetic paradigm for studying the regulation of oocyte meiotic maturation. Studies in this system have revealed conceptual, anatomical, and molecular links to oocytes in all animals including humans. This review focuses on the signaling mechanisms required to control oocyte growth and meiotic maturation in C. elegans and discusses how the downstream regulation of protein translation coordinates the completion of meiosis and the oocyte-to-embryo transition.
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Affiliation(s)
- Gabriela Huelgas-Morales
- Department of Genetics, Cell Biology and Development, University of Minnesota, Minneapolis, MN 55455, United States of America
| | - David Greenstein
- Department of Genetics, Cell Biology and Development, University of Minnesota, Minneapolis, MN 55455, United States of America.
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35
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Prochazkova B, Komrskova P, Kubelka M. CPEB2 Is Necessary for Proper Porcine Meiotic Maturation and Embryonic Development. Int J Mol Sci 2018; 19:ijms19103138. [PMID: 30322039 PMCID: PMC6214008 DOI: 10.3390/ijms19103138] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 10/02/2018] [Accepted: 10/09/2018] [Indexed: 02/07/2023] Open
Abstract
Oocyte meiotic maturation and embryogenesis are some of the most important physiological processes that occur in organisms, playing crucial roles in the preservation of life in all species. The post-transcriptional regulation of maternal messenger ribonucleic acids (mRNAs) and the post-translational regulation of proteins are critical in the control of oocyte maturation and early embryogenesis. Translational control affects the basic mechanism of protein synthesis, thus, knowledge of the key components included in this machinery is required in order to understand its regulation. Cytoplasmic polyadenylation element binding proteins (CPEBs) bind to the 3′-end of mRNAs to regulate their localization and translation and are necessary for proper development. In this study we examined the expression pattern of cytoplasmic polyadenylation element binding protein 2 (CPEB2) both on the mRNA (by real-time quantitative reverse transcription polymerase chain reaction, qRT-PCR) and protein (by Western blotting, WB) level, as well as its localization during the meiotic maturation of porcine oocytes and early embryonic development by immunocytochemistry (ICC). For the elucidation of its functions, CPEB2 knockdown by double-strand RNA (dsRNA) was used. We discovered that CPEB2 is expressed during all stages of porcine meiotic maturation and embryonic development. Moreover, we found that it is necessary to enable a high percentage of oocytes to reach the metaphase II (MII) stage, as well as for the production of good-quality parthenogenetic blastocysts.
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Affiliation(s)
- Barbora Prochazkova
- Department of Veterinary Sciences, Czech University of Life Sciences, Kamycka 129, 165 00 Prague, Czech Republic.
- Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Rumburska 89, 277 21 Libechov, Czech Republic.
| | - Pavla Komrskova
- Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Rumburska 89, 277 21 Libechov, Czech Republic.
| | - Michal Kubelka
- Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Rumburska 89, 277 21 Libechov, Czech Republic.
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36
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Maturational gene upregulation and mitochondrial activity enhancement in mouse in vitro matured oocytes and using granulosa cell conditioned medium. ZYGOTE 2018; 26:366-371. [DOI: 10.1017/s0967199418000333] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
SummaryThe high miscarriage rates that result following transfer of embryos derived from in vitro maturation (IVM) of oocytes necessitate improvements in the processes involved. This study aimed to improve the quality of in vitro matured oocytes using granulosa cell conditioned medium (GCCM) as the culture medium. In this work, germinal vesicle (GV)-stage oocytes from NMRI mice were collected and cultured using three types of culture medium: Base medium (BM) (control), 50% granulosa cell conditioned medium (GCCM50) and 100% GCCM (GCCM100). After IVM, the mitochondria activity potential and viability of metaphase II (MII) oocytes were evaluated by JC-1 and trypan blue staining, respectively. Maturational gene expression levels of CyclinB1, Cdk1 and Gdf9 in the control, GCCM50 and GCCM100 samples were analyzed using real-time polymerase chain reaction (PCR). The viability rate of in vitro matured oocytes was highest in the GCCM50 group. JC-1 staining showed that GCCM50 enhances mitochondrial activity more than the other groups (P < 0.05). Gene expression levels of Cdk1 and Gdf9 were higher in the group with GCCM50 treatment, than in the control and GCCM100 groups (P < 0.05), while the expression level of CyclinB1 did not differ among the groups. The results indicated that a 50% concentration of GCCM in combination with BM components enhanced MII and viability rates and mitochondria activity of mouse immature oocytes.
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Wang DH, Ren J, Zhou CJ, Han Z, Wang L, Liang CG. Supplementation with CTGF, SDF1, NGF, and HGF promotes ovine in vitro oocyte maturation and early embryo development. Domest Anim Endocrinol 2018; 65:38-48. [PMID: 29890304 DOI: 10.1016/j.domaniend.2018.05.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2017] [Revised: 04/14/2018] [Accepted: 05/02/2018] [Indexed: 02/03/2023]
Abstract
The strategies for improving the in vitro maturation (IVM) of domestic animal oocytes focus on promoting nuclear and cytoplasmic maturation. The identification of paracrine factors and their supplementation in the culture medium represent effective approaches for oocyte maturation and embryo development. This study investigated the effects of paracrine factor supplementation including connective tissue growth factor (CTGF), nerve growth factor (NGF), hepatocyte growth factor (HGF), and stromal derived factor 1 (SDF1) on ovine oocytes and early parthenogenetic embryos using an in vitro culture system. First, we identified the optimal concentrations of CTGF (30 ng/mL), SDF1 (10 ng/mL), NGF (3 ng/mL), and HGF (100 ng/mL) for promoting oocyte maturation, which combined, induced nuclear maturation in 94.19% of oocytes. This combination also promoted cumulus cell expansion and inhibited oocyte/cumulus apoptosis, while enabling a larger proportion (33.04%) of embryos to develop into blastocysts than in the controls and prevented embryo apoptosis. These novel findings demonstrate that the paracrine factors CTGF, SDF1, NGF, and HGF facilitate ovine oocyte and early parthenogenetic embryo development in vitro. Thus, supplementation with these factors may help optimize the IVM of ovine oocytes and early parthenogenetic embryo development strategies.
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Affiliation(s)
- D H Wang
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, The Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University, Hohhot, Inner Mongolia, People's Republic of China
| | - J Ren
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, The Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University, Hohhot, Inner Mongolia, People's Republic of China
| | - C J Zhou
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, The Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University, Hohhot, Inner Mongolia, People's Republic of China
| | - Z Han
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, The Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University, Hohhot, Inner Mongolia, People's Republic of China
| | - L Wang
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, The Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University, Hohhot, Inner Mongolia, People's Republic of China
| | - C G Liang
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, The Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University, Hohhot, Inner Mongolia, People's Republic of China.
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Functions and dysfunctions of the mammalian centrosome in health, disorders, disease, and aging. Histochem Cell Biol 2018; 150:303-325. [PMID: 30062583 DOI: 10.1007/s00418-018-1698-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/19/2018] [Indexed: 01/17/2023]
Abstract
Since its discovery well over 100 years ago (Flemming, in Sitzungsber Akad Wissensch Wien 71:81-147, 1875; Van Beneden, in Bull Acad R Belg 42:35-97, 1876) the centrosome is increasingly being recognized as a most impactful organelle for its role not only as primary microtubule organizing center (MTOC) but also as a major communication center for signal transduction pathways and as a center for proteolytic activities. Its significance for cell cycle regulation has been well studied and we now also know that centrosome dysfunctions are implicated in numerous diseases and disorders including cancer, Alstrom syndrome, Bardet-Biedl syndrome, Huntington's disease, reproductive disorders, and several other diseases and disorders. The present review is meant to build on information presented in the previous review (Schatten, in Histochem Cell Biol 129:667-686, 2008) and to highlight functions of the mammalian centrosome in health, and dysfunctions in disorders, disease, and aging with six sections focused on (1) centrosome structure and functions, and new insights into the role of centrosomes in cell cycle progression; (2) the role of centrosomes in tumor initiation and progression; (3) primary cilia, centrosome-primary cilia interactions, and consequences for cell cycle functions in health and disease; (4) transitions from centrosome to non-centrosome functions during cellular polarization; (5) other centrosome dysfunctions associated with the pathogenesis of human disease; and (6) centrosome functions in oocyte germ cells and dysfunctions in reproductive disorders and reproductive aging.
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Gomes ET, Costa JAS, Silva DMF, Al Shebli W, Azevedo ML, Monteiro Jr PLJ, Araújo Silva RAJ, Santos Filho AS, Guerra MMP, Bartolomeu CC, Wischral A, Batista AM. Effects of adiponectin during in vitro maturation of goat oocytes: MEK 1/2 pathway and gene expression pattern. Reprod Domest Anim 2018; 53:1323-1329. [DOI: 10.1111/rda.13251] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Accepted: 06/04/2018] [Indexed: 11/29/2022]
Affiliation(s)
- Elizabete T. Gomes
- Departamento de Medicina Veterinária Universidade Federal Rural de Pernambuco Recife, Pernambuco Brazil
| | - Joana Amélia S. Costa
- Departamento de Medicina Veterinária Universidade Federal Rural de Pernambuco Recife, Pernambuco Brazil
| | - Diogo Manoel F. Silva
- Departamento de Medicina Veterinária Universidade Federal Rural de Pernambuco Recife, Pernambuco Brazil
| | - Wasim Al Shebli
- Departamento de Medicina Veterinária Universidade Federal Rural de Pernambuco Recife, Pernambuco Brazil
| | - Marina L. Azevedo
- Departamento de Medicina Veterinária Universidade Federal Rural de Pernambuco Recife, Pernambuco Brazil
| | | | | | | | - Maria Madalena P. Guerra
- Departamento de Medicina Veterinária Universidade Federal Rural de Pernambuco Recife, Pernambuco Brazil
| | | | - Aurea Wischral
- Departamento de Medicina Veterinária Universidade Federal Rural de Pernambuco Recife, Pernambuco Brazil
| | - André M. Batista
- Departamento de Medicina Veterinária Universidade Federal Rural de Pernambuco Recife, Pernambuco Brazil
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Campen KA, Abbott CR, Rispoli LA, Payton RR, Saxton AM, Edwards JL. Heat stress impairs gap junction communication and cumulus function of bovine oocytes. J Reprod Dev 2018; 64:385-392. [PMID: 29937465 PMCID: PMC6189573 DOI: 10.1262/jrd.2018-029] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
The intimate association of cumulus cells with one another and with the oocyte is important for regulating oocyte meiotic arrest and resumption. The objective of this study was to determine
the effects of heat stress on cumulus cell communication and functions that may be related to accelerated oocyte meiosis during early maturation. Bovine cumulus-oocyte complexes underwent
in vitro maturation for up to 6 h at thermoneutral control (38.5°C) or elevated (40.0, 41.0 or 42.0°C) temperatures. Gap junction communication between the cumulus cells
and the oocyte was assessed using the fluorescent dye calcein after 4 h of in vitro maturation. Dye transfer was reduced in cumulus-oocyte complexes matured at 41.0°C or
42.0°C; transfer at 40.0°C was similar to control (P < 0.0001). Subsequent staining of oocytes with Hoechst revealed that oocytes matured at 41.0 or 42.0°C contained chromatin at more
advanced stages of condensation. Maturation of cumulus-oocyte complexes at elevated temperatures reduced levels of active 5’ adenosine monophosphate activated kinase (P = 0.03). Heat stress
exposure had no effect on active extracellular-regulated kinase 1/2 in oocytes (P = 0.67), associated cumulus cells (P = 0.60) or intact cumulus-oocyte complexes (P = 0.44). Heat-induced
increases in progesterone production by cumulus-oocyte complexes were detected during the first 6 h of maturation (P = 0.001). Heat-induced alterations in gap junction communication and
other cumulus-cell functions likely cooperate to accelerate bovine oocyte meiotic progression.
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Affiliation(s)
- Kelly A Campen
- Department of Animal Science, The University of Tennessee, Institute of Agriculture, AgResearch, Knoxville, TN 37996-4574, USA
| | - Chelsea R Abbott
- Department of Animal Science, The University of Tennessee, Institute of Agriculture, AgResearch, Knoxville, TN 37996-4574, USA
| | - Louisa A Rispoli
- Department of Animal Science, The University of Tennessee, Institute of Agriculture, AgResearch, Knoxville, TN 37996-4574, USA
| | - Rebecca R Payton
- Department of Animal Science, The University of Tennessee, Institute of Agriculture, AgResearch, Knoxville, TN 37996-4574, USA
| | - Arnold M Saxton
- Department of Animal Science, The University of Tennessee, Institute of Agriculture, AgResearch, Knoxville, TN 37996-4574, USA
| | - J Lannett Edwards
- Department of Animal Science, The University of Tennessee, Institute of Agriculture, AgResearch, Knoxville, TN 37996-4574, USA
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Sahu K, Gupta A, Sharma A, Tiwari M, Pandey AN, Prasad S, Yadav PK, Pandey AK, Shrivastav TG, Chaube SK. Role of granulosa cell mitogen-activated protein kinase 3/1 in gonadotropin-mediated meiotic resumption from diplotene arrest of mammalian oocytes. Growth Factors 2018; 36:41-47. [PMID: 29842809 DOI: 10.1080/08977194.2018.1475372] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
In mammals, preovulatory oocytes are encircled by several layers of granulosa cells (GCs) in follicular microenvironment. These follicular oocytes are arrested at diplotene arrest due to high level of cyclic nucleotides from encircling GCs. Pituitary gonadotropin acts at the level of encircling GCs and increases adenosine 3',5'-cyclic monophosphate (cAMP) and guanosine 3',5'-cyclic monophosphate (cGMP) and activates mitogen-activated protein kinase 3/1 (MAPK3/1) signaling pathway. The MAPK3/1 disrupts the gap junctions between encircling GCs and oocyte. The disruption of gap junctions interrupts the transfer of cyclic nucleotides to the oocyte that results a drop in intraoocyte cAMP level. A transient decrease in oocyte cAMP level triggers maturation promoting factor (MPF) destabilization. The destabilized MPF finally triggers meiotic resumption from diplotene arrest in follicular oocyte. Thus, MAPK3/1 from GCs origin plays important role in gonadotropin-mediated meiotic resumption from diplotene arrest in follicular oocyte of mammals.
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Affiliation(s)
- Kankshi Sahu
- a Cell Physiology Laboratory, Department of Zoology , Institute of Science, Banaras Hindu University , Varanasi , India
| | - Anumegha Gupta
- a Cell Physiology Laboratory, Department of Zoology , Institute of Science, Banaras Hindu University , Varanasi , India
| | - Alka Sharma
- a Cell Physiology Laboratory, Department of Zoology , Institute of Science, Banaras Hindu University , Varanasi , India
| | - Meenakshi Tiwari
- a Cell Physiology Laboratory, Department of Zoology , Institute of Science, Banaras Hindu University , Varanasi , India
| | - Ashutosh N Pandey
- a Cell Physiology Laboratory, Department of Zoology , Institute of Science, Banaras Hindu University , Varanasi , India
| | - Shilpa Prasad
- a Cell Physiology Laboratory, Department of Zoology , Institute of Science, Banaras Hindu University , Varanasi , India
| | - Pramod K Yadav
- a Cell Physiology Laboratory, Department of Zoology , Institute of Science, Banaras Hindu University , Varanasi , India
| | - Ajai K Pandey
- b Department of Kayachikitsa, Faculty of Ayurveda , Banaras Hindu University , Varanasi , India
| | - Tulsidas G Shrivastav
- c Department of Reproductive Biomedicine , National Institute of Health and Family Welfare , New Delhi , India
| | - Shail K Chaube
- a Cell Physiology Laboratory, Department of Zoology , Institute of Science, Banaras Hindu University , Varanasi , India
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Xie B, Zhang L, Zhao H, Bai Q, Fan Y, Zhu X, Yu Y, Li R, Liang X, Sun QY, Li M, Qiao J. Poly(ADP-ribose) mediates asymmetric division of mouse oocyte. Cell Res 2018; 28:462-475. [PMID: 29463901 DOI: 10.1038/s41422-018-0009-7] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2017] [Revised: 10/30/2017] [Accepted: 01/05/2018] [Indexed: 11/09/2022] Open
Abstract
Before fertilization, mammalian oocyte undergoes an asymmetric division which depends on eccentric positioning of the spindle at the oocyte cortex to form a polar body and an egg. Since the centriole is absent and, as a result, the polar array microtubules are not fully developed in oocytes, microtubules have seldom been considered as required for eccentric positioning of the spindle, while actin-related forces have instead been proposed to be primarily responsible for this process. However, the existing models are largely conflicting and the underlying mechanism of asymmetric division is still elusive. Here we show that poly(ADP-ribose) (PAR) is enriched at mouse oocyte cortical area throughout meiosis. Specific removal of cortical PAR results in an ectopic spindle and a failure of asymmetric division. During spindle migration, when the spindle deviates from the center of oocyte by a pushing force of cytoplasmic actin, the short polar array microtubules emanating from the juxtacortical spindle pole extend to the cortex and penetrate into cortical PAR, docking and stabilizing the spindle at the cortex which facilitates the asymmetric division. This process depends on the affinity between PAR and microtubule-associated proteins such as Spindly, which contributes to a physical link for cortical PAR and the spindle. Notably, fusing a PAR-binding domain to end-binding protein 3, a plus-end tracking protein at the polar array microtubules, restores the asymmetric division of oocytes with Spindly knockdown. Thus, our work demonstrates a comprehensive mechanism for oocyte spindle positioning and asymmetric division.
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Affiliation(s)
- Bingteng Xie
- Center for Reproductive Medicine, Peking University Third Hospital, 100191, Beijing, China.,Key Laboratory of Assisted Reproduction, Ministry of Education, 100191, Beijing, China
| | - Lu Zhang
- Center for Reproductive Medicine, Peking University Third Hospital, 100191, Beijing, China.,Key Laboratory of Assisted Reproduction, Ministry of Education, 100191, Beijing, China
| | - Huiling Zhao
- School of Basic Medical Sciences, Peking University Health Science Center, 100191, Beijing, China
| | - Qingyun Bai
- School of Basic Medical Sciences, Peking University Health Science Center, 100191, Beijing, China
| | - Yong Fan
- Key Laboratory for Major Obstetric Diseases of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University, 510150, Guangzhou, China
| | - Xiaohui Zhu
- Center for Reproductive Medicine, Peking University Third Hospital, 100191, Beijing, China
| | - Yang Yu
- Center for Reproductive Medicine, Peking University Third Hospital, 100191, Beijing, China
| | - Rong Li
- Center for Reproductive Medicine, Peking University Third Hospital, 100191, Beijing, China
| | - Xin Liang
- Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, 100084, Beijing, China
| | - Qing-Yuan Sun
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, 100101, Beijing, China
| | - Mo Li
- Center for Reproductive Medicine, Peking University Third Hospital, 100191, Beijing, China. .,Key Laboratory of Assisted Reproduction, Ministry of Education, 100191, Beijing, China.
| | - Jie Qiao
- Center for Reproductive Medicine, Peking University Third Hospital, 100191, Beijing, China. .,Key Laboratory of Assisted Reproduction, Ministry of Education, 100191, Beijing, China.
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Cadenas J, Maside C, Ferreira A, Vieira L, Leiva-Revilla J, Paes V, Alves B, Brandão F, Rodrigues A, Wheeler M, Figueiredo J. Relationship between follicular dynamics and oocyte maturation during in vitro culture as a non-invasive sign of caprine oocyte meiotic competence. Theriogenology 2018; 107:95-103. [DOI: 10.1016/j.theriogenology.2017.10.038] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Revised: 09/29/2017] [Accepted: 10/29/2017] [Indexed: 11/16/2022]
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Nath P, Das D, Pal S, Maitra S. Nitric oxide (NO) inhibition of meiotic G2-M1 transition in Anabas testudineus oocytes: Participation of cAMP-dependent protein kinase (PKA) in regulation of intra-oocyte signaling events. Mol Cell Endocrinol 2018; 460:162-169. [PMID: 28743518 DOI: 10.1016/j.mce.2017.07.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Revised: 07/14/2017] [Accepted: 07/17/2017] [Indexed: 10/19/2022]
Abstract
Nitric oxide (NO) regulation of ovarian function in mammals has been studied extensively. However, relatively less information is available on NO action on meiotic G2-M1 transition in teleost oocytes. In the present study using follicle-enclosed oocytes of Anabas testudineus, NO regulation of intra-oocyte signaling events during meiotic G2-M1 transition were examined. Priming with NO donor, sodium nitroprusside (SNP) prevented 17α,20β-dihydroxy-4-pregenen-3-one (17,20β-P)-induced germinal vesicle break down (GVBD) in dose- and duration-dependent manner. Impaired GVBD response in SNP-treated groups corroborated well with reduced p34Cdc2 (Thr161) phosphorylation. Immunoblot analysis revealed that congruent with elevated cAMP-dependent protein kinase (PKA) phosphorylation (activation), NO inhibition of meiotic maturation involves down regulation of Cdc25 activation, Mos synthesis and MAPK3/1 (ERK1/2) phosphorylation. However, priming with PKA inhibitor (H89) could reverse SNP attenuation of oocyte GVBD significantly. Collectively our results indicate that negative influence of NO on meiotic G2-M1 transition in perch oocytes might involve PKA activation.
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Affiliation(s)
- Poulomi Nath
- Department of Zoology, Visva-Bharati University, Santiniketan, 731235, India
| | - Debabrata Das
- Department of Zoology, Visva-Bharati University, Santiniketan, 731235, India
| | - Soumojit Pal
- Department of Zoology, Visva-Bharati University, Santiniketan, 731235, India
| | - Sudipta Maitra
- Department of Zoology, Visva-Bharati University, Santiniketan, 731235, India.
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Relative importance of phosphatidylinositol-3 kinase (PI3K)/Akt and mitogen-activated protein kinase (MAPK3/1) signaling during maturational steroid-induced meiotic G2-M1 transition in zebrafish oocytes. ZYGOTE 2017; 26:62-75. [PMID: 29229010 DOI: 10.1017/s0967199417000545] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Participation and relative importance of phosphatidylinositol-3 kinase (PI3K) and mitogen-activated protein kinase (MAPK) signalling, either alone or in combination, have been investigated during 17α,20β-dihydroxy-4-pregnen-3-one (DHP)-induced meiotic G2-M1 transition in denuded zebrafish oocyte. Results demonstrate that concomitant with rapid phosphorylation (activation) of Akt (Ser473) and MAPK (ERK1/2) at as early as 15 min of incubation, DHP stimulation promotes enhanced an GVBD response and histone H1 kinase activation between 1 and 5 h in full-grown oocytes in vitro. While p-Akt reaches its peak at 60 to 90 min and undergoes downregulation to the basal level by 240 min, ERK1/2 phosphorylation (activation) increases gradually until 120 min and remains high thereafter. Although, priming with MEK1/2 inhibitor U0126 is without effect, PI3K inhibitors, wortmannin or LY294002, delay the GVBD response significantly (P < 0.001) until 3 h but not at 5 h of incubation. Interestingly, blocking PI3K and MEK function together could abrogate steroid-induced oocyte maturation at all time points tested. While DHP stimulation promotes phospho-PKA catalytic (p-PKAc) dephosphorylation (inactivation) between 30-120 min of incubation, simultaneous inhibition of PI3K and MEK1/2 kinases abrogates DHP action. Conversely, elevated intra-oocyte cAMP, through priming with either adenylyl cyclase (AC) activator forskolin (FK) or dibutyryl cAMP (db-cAMP), abrogates steroid-induced Akt and ERK1/2 phosphorylation. Taken together, these results suggest that DHP-induced Akt and ERK activation precedes the onset of meiosis (GVBD response) in a cAMP-sensitive manner and PI3K/Akt and MEK/MAPK pathways together have a pivotal influence in the downregulation of PKA and resumption of meiotic maturation in zebrafish oocytes in vitro.
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Treatment of allicin improves maturation of immature oocytes and subsequent developmental ability of preimplantation embryos. ZYGOTE 2017; 25:480-488. [DOI: 10.1017/s0967199417000302] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
SummaryAllicin (AL) regulates the cellular redox, proliferation, viability, and cell cycle of different cells against extracellular-derived stress. This study investigated the effects of allicin treatment on porcine oocyte maturation and developmental competence. Porcine oocytes were cultured in medium supplemented with 0 (control), 0.01, 0.1, 1, 10 or 100 μM AL, respectively, during in vitro maturation (IVM). The rate of polar body emission was higher in the 0.1 AL-treated group (74.5% ± 2.3%) than in the control (68.0% ± 2.6%) (P < 0.1). After parthenogenetic activation, the rates of cleavage and blastocyst formation were significantly higher in the 0.1 AL-treated group than in the control (P < 0.05). The reactive oxygen species level at metaphase II did not significantly differ among all groups. In matured oocytes, the expression of both BAK and CASP3, and BIRC5 was significantly lower and higher, respectively, in the 0.1 AL-treated group than in the control. Similarly, the expression of BMP15 and CCNB1, and the activity of phospho-p44/42 mitogen-activated protein kinase (MAPK), significantly increased. These results indicate that supplementation of oocyte maturation medium with allicin during IVM improves the maturation of oocytes and the subsequent developmental competence of porcine oocytes.
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Arur S. Signaling-Mediated Regulation of Meiotic Prophase I and Transition During Oogenesis. Results Probl Cell Differ 2017; 59:101-123. [PMID: 28247047 DOI: 10.1007/978-3-319-44820-6_4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
Generation of healthy oocytes requires coordinated regulation of multiple cellular events and signaling pathways. Oocytes undergo a unique developmental growth and differentiation pattern interspersed with long periods of arrest. Oocytes from almost all species arrest in prophase I of oogenesis that allows for long period of growth and differentiation essential for normal oocyte development. Depending on species, oocytes that transit from prophase I to meiosis I also arrest at meiosis I for fairly long periods of time and then undergo a second arrest at meiosis II that is completed upon fertilization. While there are species-specific differences in C. elegans, D. melanogaster, and mammalian oocytes in stages of prophase I, meiosis I, or meiosis II arrest, in all cases cell signaling pathways coordinate the developmental events controlling oocyte growth and differentiation to regulate these crucial phases of transition. In particular, the ERK MAP kinase signaling pathway, cyclic AMP second messengers, and the cell cycle regulators CDK1/cyclin B are key signaling pathways that seem evolutionarily conserved in their control of oocyte growth and meiotic maturation across species. Here, I identify the common themes and differences in the regulation of key meiotic events during oocyte growth and maturation.
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Affiliation(s)
- Swathi Arur
- Department of Genetics, UT M.D. Anderson Cancer Center, Houston, TX, USA.
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48
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DAS DEBABRATA, ARUR SWATHI. Conserved insulin signaling in the regulation of oocyte growth, development, and maturation. Mol Reprod Dev 2017; 84:444-459. [PMID: 28379636 PMCID: PMC5477485 DOI: 10.1002/mrd.22806] [Citation(s) in RCA: 99] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Accepted: 03/31/2017] [Indexed: 01/01/2023]
Abstract
Insulin signaling regulates various aspects of physiology, such as glucose homeostasis and aging, and is a key determinant of female reproduction in metazoans. That insulin signaling is crucial for female reproductive health is clear from clinical data linking hyperinsulinemic and hypoinsulinemic condition with certain types of ovarian dysfunction, such as altered steroidogenesis, polycystic ovary syndrome, and infertility. Thus, understanding the signaling mechanisms that underlie the control of insulin-mediated ovarian development is important for the accurate diagnosis of and intervention for female infertility. Studies of invertebrate and vertebrate model systems have revealed the molecular determinants that transduce insulin signaling as well as which biological processes are regulated by the insulin-signaling pathway. The molecular determinants of the insulin-signaling pathway, from the insulin receptor to its downstream signaling components, are structurally and functionally conserved across evolution, from worms to mammals-yet, physiological differences in signaling still exist. Insulin signaling acts cooperatively with gonadotropins in mammals and lower vertebrates to mediate various aspects of ovarian development, mainly owing to evolution of the endocrine system in vertebrates. In contrast, insulin signaling in Drosophila and Caenorhabditis elegans directly regulates oocyte growth and maturation. In this review, we compare and contrast insulin-mediated regulation of ovarian functions in mammals, lower vertebrates, C. elegans, and Drosophila, and highlight conserved signaling pathways and regulatory mechanisms in general while illustrating insulin's unique role in specific reproductive processes.
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Affiliation(s)
- DEBABRATA DAS
- Department of Genetics, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - SWATHI ARUR
- Department of Genetics, The University of Texas MD Anderson Cancer Center, Houston, Texas
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Schatten H, Sun QY. Centrosome and microtubule functions and dysfunctions in meiosis: implications for age-related infertility and developmental disorders. Reprod Fertil Dev 2017; 27:934-43. [PMID: 25903261 DOI: 10.1071/rd14493] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Accepted: 03/18/2015] [Indexed: 12/13/2022] Open
Abstract
The effects of oocyte aging on meiotic spindle dynamics have been well recognised, but the mechanisms underlying the effects are not well understood. In this paper we review the role of centrosomes and the microtubule cytoskeleton in meiotic spindle formation and maintenance, and the impact of oocyte aging on spindle integrity resulting in centrosome and microtubule dysfunctions that are associated with aneuploidy. Loss of spindle integrity includes dispersion of proteins from the centrosome core structure and loss of attachment of microtubules to centrosomes and kinetochores, which will result in abnormal chromosome separation. The inability of centrosomal proteins to accurately associate with the centrosome structure may be the result of destabilisation of the core structure itself or of microtubule destabilisation at the centrosome-facing microtubule areas that are acetylated in fresh oocytes but may not be acetylated in aging oocytes. Microtubule destabilisation prevents accurate motor-driven transport of centrosomal proteins along microtubules to form and maintain a functional centrosome. Other factors to form and maintain the MII spindle include signal transductions that affect microtubule dynamics and stability. Understanding the mechanisms underlying centrosome and microtubule dysfunctions during oocyte aging will allow diagnosis and analysis of oocyte quality and abnormalities as important aspects for targeted treatment of aging oocytes to extend or restore viability and developmental capacity. New therapeutic approaches will allow improvements in reproductive success rates in IVF clinics, as well as improvements in reproductive success rates in farm animals. This review is focused on: (1) centrosome and microtubule dynamics in fresh and aging oocytes; (2) regulation of centrosome and/or microtubule dynamics and function; and (3) possible treatments to extend the oocyte's reproductive capacity and viability span.
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Affiliation(s)
- Heide Schatten
- Department of Veterinary Pathobiology, University of Missouri, 1600 E Rollins Street, Columbia, MO 65211, USA
| | - Qing-Yuan Sun
- State Key Laboratory of Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100080, China
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Lee SH, Oh HJ, Kim MJ, Kim GA, Choi YB, Jo YK, Setyawan EMN, Lee BC. Oocyte maturation-related gene expression in the canine oviduct, cumulus cells, and oocytes and effect of co-culture with oviduct cells on in vitro maturation of oocytes. J Assist Reprod Genet 2017; 34:929-938. [PMID: 28386814 DOI: 10.1007/s10815-017-0910-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Accepted: 08/29/2016] [Indexed: 01/01/2023] Open
Abstract
PURPOSE In contrast to most other mammals, canine oocytes are ovulated in an immature state and undergo oocyte maturation within the oviduct during the estrus stage. The aim of the study was to investigate whether oviduct cells from the estrus stage affect the maturation of oocytes and show gene expression patterns related to oocyte maturation. METHODS We analyzed MAPK1/3, SMAD2/3, and BMP6/15 expression in oviduct cells, cumulus cells, and oocytes from anestrus, estrus, and diestrus stages. Next, we investigated the effect of co-culture with oviduct cells derived from the estrus stage upon in vitro maturation (IVM) of canine oocytes. RESULTS There was significantly higher MAPK1/3 (1.42 ± 0.02 and 2.23 ± 0.06), SMAD2/3 (0.77 ± 0.03 and 2.39 ± 0.07), and BMP15 (2.21 ± 0.16) expression in oviduct cells at the estrus stage (P < 0.05). In cumulus cells, MAPK1 (1.26 ± 0.07), SMAD2/3 (0.82 ± 0.01, 1.04 ± 0.01), and BMP6 (13.09 ± 0.11) expression was significantly higher in the estrus stage (P < 0.05). In oocytes, significant upregulation of MAPK1/3 (14,960 ± 3121 and 1668 ± 253.4), SMAD3 (774.6 ± 79.62), and BMP6 (8500 ± 895.4) expression was found in the estrus stage (P < 0.05). After 72 h of IVM culture, a significantly higher maturation rate was observed in oocytes co-cultured with oviduct cells (10.0 ± 1.5%) than in the control group (3.2 ± 1.4%). CONCLUSIONS We demonstrate that oviduct cells at the estrus stage highly expressed MAPK1/3, SMAD2/3, and BMP15. Furthermore, canine oviduct cells from the estrus stage enhance the culture environment for canine oocyte maturation.
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Affiliation(s)
- Seok Hee Lee
- Department of Theriogenology and Biotechnology, College of Veterinary Medicine, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Hyun Ju Oh
- Department of Theriogenology and Biotechnology, College of Veterinary Medicine, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Min Jung Kim
- Department of Theriogenology and Biotechnology, College of Veterinary Medicine, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Geon A Kim
- Department of Theriogenology and Biotechnology, College of Veterinary Medicine, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Yoo Bin Choi
- Department of Theriogenology and Biotechnology, College of Veterinary Medicine, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Young Kwang Jo
- Department of Theriogenology and Biotechnology, College of Veterinary Medicine, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Erif Maha Nugraha Setyawan
- Department of Theriogenology and Biotechnology, College of Veterinary Medicine, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Byeong Chun Lee
- Department of Theriogenology and Biotechnology, College of Veterinary Medicine, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea.
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