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Baldassarre H, Gutierrez K, Glanzner WG, de Macedo MP, Currin L, Guay V, Herrera MEC, Da Silva Z, Fortin F, Bordignon V. Laparoscopic ovum-pick up and in vitro embryo production in gonadotropin-stimulated gilts: Preliminary results and envisioned applications. Theriogenology 2024; 214:141-147. [PMID: 37871373 DOI: 10.1016/j.theriogenology.2023.10.017] [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: 08/31/2023] [Revised: 10/14/2023] [Accepted: 10/15/2023] [Indexed: 10/25/2023]
Abstract
The present study was conducted to establish if laparoscopic ovum pick-up (LOPU) could be adapted to the swine species, and if the developmental competence of LOPU-sourced oocytes from peripubertal gilts could be improved by gonadotropin stimulation, by comparing with oocytes sourced from slaughtered gilts lacking hormonal stimulation. Estrus was synchronized in 34 gilts of ∼6-8 months of age by daily oral administration of 17.6 mg altrenogest for 13 days and 10 mg dinoprost IM on the last day of altrenogest. Follicular development was stimulated in all gilts with a single injection of 1250 IU eCG given 3 days before LOPU (together with the 12th dose of altrenogest). In about half of the gilts (Group eCG-hCG), 500 IU hCG were injected IM ∼72 h after eCG injection, or ∼16-18 h prior to LOPU, to initiate oocyte maturation in vivo, while the remaining animals only received eCG (Group eCG). Most gilts underwent LOPU twice alternating the gonadotropin protocol, thereby decreasing the impact of individual variation on results. Abattoir-sourced oocytes from prepubertal gilts served as Control. Following LOPU, oocytes were in vitro matured, fertilized, and cultured to the blastocyst stage following standard procedures, while oocytes collected from Group eCG-hCG gilts were considered partly matured in vivo and were matured for ∼24 h instead of ∼44 h. Embryos reaching the blastocyst stage were fixed and stained to assess quality through cell numbers. There were no significant differences in the number of follicles aspirated and cumulus-oocyte complexes (COCs) recovered between Groups eCG-hCG and eCG (22.4 and 16.9 vs. 22.6 and 17.6, P > 0.05), as well as the recovery rate (76.6 vs. 78.1, P > 0.05). Cleavage rate was not different between Group eCG-hCG, Group eCG and Control (61.1 vs. 64.4 vs. 53.4 %, P > 0.05). However, the blastocyst rate over total oocytes (32.2 vs. 36.9 vs. 11.1 %, P < 0.05), blastocyst rate over cleaved oocytes (51.8 vs. 55.1 vs. 21.2 %, P < 0.01) and the average number of cells/blastocyst (89.6 vs. 87.5 vs. 62.2, P < 0.01) were unaffected by hCG treatment in LOPU-sourced oocytes, but both LOPU groups were significantly higher than abattoir-sourced oocytes, respectively. Our results suggest LOPU may become a powerful tool for sourcing swine oocytes with higher developmental competence than abattoir-sourced oocytes and known disease status for creating swine models for human biomedical applications, as well as for accelerated genetic gain in swine breeding programs.
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Affiliation(s)
- Hernan Baldassarre
- Department of Animal Science, McGill University, Sainte-Anne-de-Bellevue, Quebec, Canada
| | - Karina Gutierrez
- Department of Animal Science, McGill University, Sainte-Anne-de-Bellevue, Quebec, Canada
| | - Werner Giehl Glanzner
- Department of Animal Science, McGill University, Sainte-Anne-de-Bellevue, Quebec, Canada
| | | | - Luke Currin
- Department of Animal Science, McGill University, Sainte-Anne-de-Bellevue, Quebec, Canada
| | - Vanessa Guay
- Department of Animal Science, McGill University, Sainte-Anne-de-Bellevue, Quebec, Canada
| | | | - Zigomar Da Silva
- Department of Animal Science, McGill University, Sainte-Anne-de-Bellevue, Quebec, Canada
| | - Frederic Fortin
- Centre de Development du Porc du Quebec, Lévis, Quebec, Canada
| | - Vilceu Bordignon
- Department of Animal Science, McGill University, Sainte-Anne-de-Bellevue, Quebec, Canada.
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Fang T, Wang F, Zhang R, Du ZQ, Yang CX. Single-cell RNA sequencing reveals blastomere heterogeneity of 2-cell embryos in pigs. Reprod Domest Anim 2023; 58:1393-1403. [PMID: 37568261 DOI: 10.1111/rda.14454] [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: 05/23/2023] [Revised: 07/17/2023] [Accepted: 08/02/2023] [Indexed: 08/13/2023]
Abstract
In mammals, single blastomeres from as early as 2-cell embryos demonstrate heterogeneous developmental capacity and fate decision into different cell lineages. However, mechanisms underlying blastomere heterogeneity of 2-cell embryos remain largely unresolved. Here, we analysed the molecular heterogeneity of full-length mRNAs and their 3'UTR regions, based on the single-cell RNA-seq data of pig 2-cell embryos generated from in vivo fertilization (in vivo), in vitro fertilization (in vitro) and parthenogenetic activation (PA), respectively. First, unsupervised clustering helped discover two different groups of blastomeres for 2-cell pig embryos. Between these two groups of blastomeres in pig 2-cell embryos, 35, 301 and 428 full-length mRNAs respectively in in vivo, in vitro and PA embryo types were identified to be differentially expressed (padj ≤ .05 and |log2 [fold change]| ≥1) (DE mRNAs), while 92, 89 and 42 mRNAs were shown to be with significantly different 3'UTR lengths (3'UTR DE) (padj ≤ .05). Gene enrichment for both DE mRNAs and 3'UTR DE mRNAs found multiple signalling pathways, including cell cycle, RNA processing. Few numbers of common DE mRNAs and 3'UTR DE mRNAs existed between in vitro and in vivo blastomeres derived from 2-cell embryos, indicating the larger differences between in vitro and in vivo fertilized embryos. Integrative genomics viewer analysis further identified that 3'UTRs of HSDL2 and SGTA (in vivo), FAM204A and phosphoserine phosphatase (in vitro), PRPF40A and RPIA (PA) had >100 nt average length changes. Moreover, numbers and locations of regulatory elements (polyadenylation site, cytoplasmic polyadenylation element and microRNA binding sites) within 3'UTRs of these DE mRNAs were predicted. These results indicate that molecular heterogeneity existed among blastomeres from different types of pig 2-cell embryos, providing useful information and novel insights into future functional investigation on its relationship with the subsequent embryo development and differentiation.
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Affiliation(s)
- Ting Fang
- College of Animal Science, Yangtze University, Jingzhou, China
| | - Fang Wang
- College of Animal Science, Yangtze University, Jingzhou, China
| | - Rong Zhang
- College of Animal Science, Yangtze University, Jingzhou, China
| | - Zhi-Qiang Du
- College of Animal Science, Yangtze University, Jingzhou, China
| | - Cai-Xia Yang
- College of Animal Science, Yangtze University, Jingzhou, China
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Jiang Y, He Y, Pan X, Wang P, Yuan X, Ma B. Advances in Oocyte Maturation In Vivo and In Vitro in Mammals. Int J Mol Sci 2023; 24:9059. [PMID: 37240406 PMCID: PMC10219173 DOI: 10.3390/ijms24109059] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 05/17/2023] [Accepted: 05/18/2023] [Indexed: 05/28/2023] Open
Abstract
The quality and maturation of an oocyte not only play decisive roles in fertilization and embryo success, but also have long-term impacts on the later growth and development of the fetus. Female fertility declines with age, reflecting a decline in oocyte quantity. However, the meiosis of oocytes involves a complex and orderly regulatory process whose mechanisms have not yet been fully elucidated. This review therefore mainly focuses on the regulation mechanism of oocyte maturation, including folliculogenesis, oogenesis, and the interactions between granulosa cells and oocytes, plus in vitro technology and nuclear/cytoplasm maturation in oocytes. Additionally, we have reviewed advances made in the single-cell mRNA sequencing technology related to oocyte maturation in order to improve our understanding of the mechanism of oocyte maturation and to provide a theoretical basis for subsequent research into oocyte maturation.
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Affiliation(s)
- Yao Jiang
- School of Medical, Molecular and Forensic Sciences, Murdoch University, Murdoch, WA 6149, Australia
- Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Yingting He
- Guangdong Laboratory of Lingnan Modern Agriculture, National Engineering Research Center for Breeding Swine Industry, Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Xiangchun Pan
- Guangdong Laboratory of Lingnan Modern Agriculture, National Engineering Research Center for Breeding Swine Industry, Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Penghao Wang
- School of Medical, Molecular and Forensic Sciences, Murdoch University, Murdoch, WA 6149, Australia
| | - Xiaolong Yuan
- Guangdong Laboratory of Lingnan Modern Agriculture, National Engineering Research Center for Breeding Swine Industry, Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Bin Ma
- School of Medical, Molecular and Forensic Sciences, Murdoch University, Murdoch, WA 6149, Australia
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4
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Yu X, Meng F, Huang J, Li W, Zhang J, Yin S, Zhang L, Wang S. 1-Nitropyrene exposure induces mitochondria dysfunction and impairs oocyte maturation in mice. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 242:113921. [PMID: 35908531 DOI: 10.1016/j.ecoenv.2022.113921] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 07/22/2022] [Accepted: 07/24/2022] [Indexed: 06/15/2023]
Abstract
Oocyte quality is essential for a successful pregnancy. 1-Nitropyrene (1-NP) is a widely distributed pollutant in the environment and is well-known for its mutagenicity and carcinogenicity. However, whether 1-NP has toxic effects on mammalian oocyte quality remains unknown. In the present study, we focused on the effect of 1-NP on oocyte maturation using mouse oocytes as an in vitro model. Our study showed that 1-NP exposure disrupted the meiotic spindle assembly and caused chromosome misalignment, further impaired first polar body extrusion, and significantly decreased the fertilization capability in mouse oocytes. Further investigation showed that the mitochondrial membrane potential (MMP) and ATP levels were decreased, and the expression of genes encoding components of the mitochondrial respiratory chain was inhibited in 1-NP exposed oocytes. Meanwhile, 1-NP exposure increased the levels of reactive oxygen species (ROS), inhibited the expression of genes encoding antioxidant enzymes, and increased the frequency of early apoptotic oocytes. Overall, our data suggest that 1-NP exposure disrupts mitochondrial function and intracellular redox balance, ultimately impairing oocyte maturation. These findings reveal the adverse effect of 1-NP exposure on oocyte quality.
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Affiliation(s)
- Xiaoxia Yu
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, China; National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong 250012, China; Key Laboratory of Reproductive Endocrinology of Ministry of Education, Jinan, Shandong 250001, China; Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong 250012, China
| | - Fei Meng
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, China; National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong 250012, China; Key Laboratory of Reproductive Endocrinology of Ministry of Education, Jinan, Shandong 250001, China; Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong 250012, China
| | - Ju Huang
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, China; National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong 250012, China; Key Laboratory of Reproductive Endocrinology of Ministry of Education, Jinan, Shandong 250001, China; Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong 250012, China
| | - Weidong Li
- Advanced Medical Research Institute, Shandong University, Jinan, Shandong 250012, China
| | - Jiaming Zhang
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, China; National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong 250012, China; Key Laboratory of Reproductive Endocrinology of Ministry of Education, Jinan, Shandong 250001, China; Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong 250012, China
| | - Shen Yin
- College of Life Sciences, Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao, China
| | - Liangran Zhang
- Advanced Medical Research Institute, Shandong University, Jinan, Shandong 250012, China; Center for Cell Structure and Function, Shandong Provincial Key Laboratory of Animal Resistance Biology, College of Life Sciences, Shandong Normal University, Jinan 250014, Shandong, China
| | - Shunxin Wang
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, China; National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong 250012, China; Key Laboratory of Reproductive Endocrinology of Ministry of Education, Jinan, Shandong 250001, China; Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong 250012, China.
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5
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Wu ZW, Gao ZR, Liang H, Fang T, Wang Y, Du ZQ, Yang CX. Network analysis reveals different hub genes and molecular pathways for pig in vitro fertilized early embryos and parthenogenotes. Reprod Domest Anim 2022; 57:1544-1553. [PMID: 35997106 DOI: 10.1111/rda.14231] [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: 06/28/2022] [Accepted: 08/21/2022] [Indexed: 12/01/2022]
Abstract
Maternal-to-zygotic transition (MZT) occurs when maternal transcripts decay and zygotic genome is activated gradually at early stage of embryo development. Previously, single cell RNA-seq (scRNA-seq) has helped us to uncover the MZT-associated mRNA dynamics of in vitro produced pig early embryos. Here, to further investigate functional modules and hub genes associated with MZT process, the weighted gene-coexpression network analysis (WGCNA) was performed on our previously generated 45 scRNA-seq datasets. For the in vitro fertilized embryo (IVF) group, 5 significant modules were identified (midnightblue/black/red and blue/brown modules, positively correlated with 1-cell (IVF1) and 8-cell (IVF8), respectively), containing genes mainly enriched in signaling pathways such as Wnt, regulation of RNA transcription, fatty acid metabolic process, poly(A) RNA binding and lysosome. For the parthenogenetically activated embryo (PA) group, 9 significant modules were identified (black/purple/red, brown/turquoise/yellow, and magenta/blue/green modules, positively correlated with MII oocytes, 1-cell (PA1), and 8-cell (PA8), respectively), mainly enriched in extracellular exosome, poly(A) RNA binding, mitochondrion, transcription factor activity. Moreover, some of identified hub genes within 3 IVF and 9 PA significant modules, including ADCY2, DHX34, KDM4A, GDF10, ABCC10, PAFAH2, HEXIM2, COQ9, DCAF11, SGK1, ESRRB etc., have been reported to play vital roles in different biological processes. Our findings provide information and resources for subsequent in-depth study on the regulation and function of MZT in pig embryos.
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Affiliation(s)
- Zi-Wei Wu
- College of Animal Science, Yangtze University, 434025, Jingzhou, Hubei, China
| | - Zhuo-Ran Gao
- College of Animal Science, Yangtze University, 434025, Jingzhou, Hubei, China
| | - Hao Liang
- College of Animal Science, Yangtze University, 434025, Jingzhou, Hubei, China
| | - Ting Fang
- College of Animal Science, Yangtze University, 434025, Jingzhou, Hubei, China
| | - Yi Wang
- College of Animal Science, Yangtze University, 434025, Jingzhou, Hubei, China
| | - Zhi-Qiang Du
- College of Animal Science, Yangtze University, 434025, Jingzhou, Hubei, China
| | - Cai-Xia Yang
- College of Animal Science, Yangtze University, 434025, Jingzhou, Hubei, China
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6
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Zhang Y, Li Q, Li W, Yan K, Liu Y, Xu H, Jiang M, Lu Y, Liang X, Shang J, Yang X. 2-Mercaptoethanol promotes porcine oocyte maturation in vitro by maintaining autophagy homeostasis. Theriogenology 2022; 186:155-167. [DOI: 10.1016/j.theriogenology.2022.04.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 04/07/2022] [Accepted: 04/12/2022] [Indexed: 11/29/2022]
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7
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Li Z, Song X, Yin S, Yan J, Lv P, Shan H, Cui K, Liu H, Liu Q. Single-Cell RNA-Seq Revealed the Gene Expression Pattern during the In Vitro Maturation of Donkey Oocytes. Genes (Basel) 2021; 12:genes12101640. [PMID: 34681034 PMCID: PMC8535270 DOI: 10.3390/genes12101640] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 10/13/2021] [Accepted: 10/16/2021] [Indexed: 12/15/2022] Open
Abstract
Donkeys are an important domesticated animal, providing labor, meat, milk, and medicinal materials for humans. However, the donkey population is continuously declining and even at risk of extinction. The application of modern animal production technology, such as oocyte in vitro maturation, is a promising method to improve the donkey population. In this study, we explore the gene expression patterns of donkey germinal vesicle (GV) and in vitro matured metaphase II (MII) oocytes using single cell RNA-seq of the candidate genes along with the regulatory mechanisms that affect donkey oocyte maturation. We identified a total of 24,164 oocyte genes of which 9073 were significant differentially expressed in the GV and MII oocytes. Further Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis indicated that these genes were associated with the meiotic cell cycle, mitochondrion activity, and N-glycan biosynthesis, which might be the key genes and regulatory mechanisms affecting the maturation of donkey oocytes. Our study provides considerable understanding regarding the maturation of donkey oocytes and serves as a theoretical basis for improving the development of donkey oocytes, which could ultimately benefit the expansion of the donkey population and conservation of biodiversity and genetic resources.
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Affiliation(s)
- Zhipeng Li
- Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi Univesity, Nanning 530005, China; (X.S.); (J.Y.); (H.S.); (K.C.); (Q.L.)
- Correspondence: (Z.L.); (H.L.); Tel.: +86-185-0136-1752 (Z.L.); +86-132-0370-1212 (H.L.)
| | - Xinhui Song
- Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi Univesity, Nanning 530005, China; (X.S.); (J.Y.); (H.S.); (K.C.); (Q.L.)
| | - Shan Yin
- Henan Chuangyuan Biotechnology Co. Ltd.; Zhengzhou 451100, China; (S.Y.); (P.L.)
| | - Jiageng Yan
- Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi Univesity, Nanning 530005, China; (X.S.); (J.Y.); (H.S.); (K.C.); (Q.L.)
| | - Peiru Lv
- Henan Chuangyuan Biotechnology Co. Ltd.; Zhengzhou 451100, China; (S.Y.); (P.L.)
| | - Huiquan Shan
- Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi Univesity, Nanning 530005, China; (X.S.); (J.Y.); (H.S.); (K.C.); (Q.L.)
| | - Kuiqing Cui
- Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi Univesity, Nanning 530005, China; (X.S.); (J.Y.); (H.S.); (K.C.); (Q.L.)
| | - Hongbo Liu
- Henan Chuangyuan Biotechnology Co. Ltd.; Zhengzhou 451100, China; (S.Y.); (P.L.)
- Correspondence: (Z.L.); (H.L.); Tel.: +86-185-0136-1752 (Z.L.); +86-132-0370-1212 (H.L.)
| | - Qingyou Liu
- Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi Univesity, Nanning 530005, China; (X.S.); (J.Y.); (H.S.); (K.C.); (Q.L.)
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8
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Park JE, Kim MS, Lee E, Lee ST. In vitro maturation using an agarose matrix with incorporated extracellular matrix proteins improves porcine oocyte developmental competence by enhancing cytoplasmic maturation. J Tissue Eng Regen Med 2021; 15:807-817. [PMID: 34310055 DOI: 10.1002/term.3228] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 03/22/2021] [Accepted: 05/26/2021] [Indexed: 11/09/2022]
Abstract
Here, we present a novel in vitro maturation (IVM) system comprising an agarose matrix supplemented with extracellular matrix (ECM) proteins for enhanced maturation of immature oocytes within cumulus-oocyte complexes (COCs) derived from porcine medium antral follicles (MAFs). Immunocytochemical analyses of integrin subunit α2 , α5 , α6 , β1 , and β4 expression suggested that integrin α2 β1 , α5 β1 , α6 β1 , and α6 β4 play pivotal roles in IVM of porcine immature oocytes. Combinatorial supplementation of fibronectin interacting with integrin α5 β1 , collagen interacting with integrin α2 β1 , and laminin interacting with integrin α6 β1 and α6 β4 to the agarose matrix had no significant effect on nuclear maturation. However, the number of parthenogenetic embryos that developed into blastocysts increased when oocytes were matured using agarose IVM matrices supplemented with fibronectin, collagen, or laminin. Furthermore, significant increases in cytoplasmic maturation-related parameters (BMP15 level, cumulus cell expansion score, intra-oocyte ATP level, and index of cortical granule distribution) were observed in COCs matured in vitro using ECM protein-incorporated agarose matrices. Our data suggest that mature porcine oocytes with enhanced developmental competence and high-quality cytoplasm can be generated via IVM using agarose matrices supplemented with fibronectin, collagen, or laminin.
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Affiliation(s)
- Ji Eun Park
- Department of Animal Life Science, Kangwon National University, Chuncheon, Korea
| | - Min Seong Kim
- Department of Molecular and Cellular Physiology, Louisiana State University Health Sciences Center, Shreveport, Louisiana, USA
| | - Eunsong Lee
- Institute of Veterinary Science, Kangwon National University, Chuncheon, Korea
| | - Seung Tae Lee
- Department of Animal Life Science, Kangwon National University, Chuncheon, Korea.,Department of Applied Animal Science, Kangwon National University, Chuncheon, Korea.,KustoGen Inc., Chuncheon, Korea
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9
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Du ZQ, Liang H, Liu XM, Liu YH, Wang C, Yang CX. Single cell RNA-seq reveals genes vital to in vitro fertilized embryos and parthenotes in pigs. Sci Rep 2021; 11:14393. [PMID: 34257377 PMCID: PMC8277874 DOI: 10.1038/s41598-021-93904-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 06/28/2021] [Indexed: 12/13/2022] Open
Abstract
Successful early embryo development requires the correct reprogramming and configuration of gene networks by the timely and faithful execution of zygotic genome activation (ZGA). However, the regulatory principle of molecular elements and circuits fundamental to embryo development remains largely obscure. Here, we profiled the transcriptomes of single zygotes and blastomeres, obtained from in vitro fertilized (IVF) or parthenogenetically activated (PA) porcine early embryos (1- to 8-cell), focusing on the gene expression dynamics and regulatory networks associated with maternal-to-zygote transition (MZT) (mainly maternal RNA clearance and ZGA). We found that minor and major ZGAs occur at 1-cell and 4-cell stages for both IVF and PA embryos, respectively. Maternal RNAs gradually decay from 1- to 8-cell embryos. Top abundantly expressed genes (CDV3, PCNA, CDR1, YWHAE, DNMT1, IGF2BP3, ARMC1, BTG4, UHRF2 and gametocyte-specific factor 1-like) in both IVF and PA early embryos identified are of vital roles for embryo development. Differentially expressed genes within IVF groups are different from that within PA groups, indicating bi-parental and maternal-only embryos have specific sets of mRNAs distinctly decayed and activated. Pathways enriched from DEGs showed that RNA associated pathways (RNA binding, processing, transport and degradation) could be important. Moreover, mitochondrial RNAs are found to be actively transcribed, showing dynamic expression patterns, and for DNA/H3K4 methylation and transcription factors as well. Taken together, our findings provide an important resource to investigate further the epigenetic and genome regulation of MZT events in early embryos of pigs.
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Affiliation(s)
- Zhi-Qiang Du
- College of Animal Science, Yangtze University, Jingzhou, 434025, Hubei, China
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
| | - Hao Liang
- College of Animal Science, Yangtze University, Jingzhou, 434025, Hubei, China
| | - Xiao-Man Liu
- College of Animal Science, Yangtze University, Jingzhou, 434025, Hubei, China
| | - Yun-Hua Liu
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
| | - Chonglong Wang
- Key Laboratory of Pig Molecular Quantitative Genetics of Anhui Academy of Agricultural Sciences, Anhui Provincial Key Laboratory of Livestock and Poultry Product Safety Engineering, Institute of Animal Husbandry and Veterinary Medicine, Anhui Academy of Agricultural Sciences, Hefei, 230031, China
| | - Cai-Xia Yang
- College of Animal Science, Yangtze University, Jingzhou, 434025, Hubei, China.
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China.
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10
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Yang CX, Wu ZW, Liu XM, Liang H, Gao ZR, Wang Y, Fang T, Liu YH, Miao YL, Du ZQ. Single-cell RNA-seq reveals mRNAs and lncRNAs important for oocytes in vitro matured in pigs. Reprod Domest Anim 2021; 56:642-657. [PMID: 33496347 DOI: 10.1111/rda.13901] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 01/20/2021] [Indexed: 12/15/2022]
Abstract
The faithful execution of molecular programme underlying oocyte maturation and meiosis is vital to generate competent haploid gametes for efficient mammalian reproduction. However, the organization and principle of molecular circuits and modules for oocyte meiosis remain obscure. Here, we employed the recently developed single-cell RNA-seq technique to profile the transcriptomes of germinal vesicle (GV) and metaphase II (MII) oocytes, aiming to discover the dynamic changes of mRNAs and long non-coding RNAs (lncRNAs) during oocyte in vitro meiotic maturation. During the transition from GV to MII, total number of detected RNAs (mRNAs and lncRNAs) in oocytes decreased. Moreover, 1,807 (602 up- and 1,205 down-regulated) mRNAs and 313 (177 up- and 136 down-regulated) lncRNAs were significantly differentially expressed (DE), i.e., more mRNAs down-regulated, but more lncRNAs up-regulated. During maturation of pig oocytes, mitochondrial mRNAs were actively transcribed, eight of which (ND6, ND5, CYTB, ND1, ND2, COX1, COX2 and COX3) were significantly up-regulated. Both DE mRNAs and targets of DE lncRNAs were enriched in multiple biological and signal pathways potentially associated with oocyte meiosis. Highly abundantly expressed mRNAs (including DNMT1, UHRF2, PCNA, ARMC1, BTG4, ASNS and SEP11) and lncRNAs were also discovered. Weighted gene co-expression network analysis (WGCNA) revealed 20 hub mRNAs in three modules to be important for oocyte meiosis and maturation. Taken together, our findings provide insights and resources for further functional investigation of mRNAs/lncRNAs in in vitro meiotic maturation of pig oocytes.
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Affiliation(s)
- Cai-Xia Yang
- College of Animal Science, Yangtze University, Jingzhou, China.,College of Animal Science and Technology, Northeast Agricultural University, Harbin, China
| | - Zi-Wei Wu
- College of Animal Science, Yangtze University, Jingzhou, China
| | - Xiao-Man Liu
- College of Animal Science, Yangtze University, Jingzhou, China
| | - Hao Liang
- College of Animal Science, Yangtze University, Jingzhou, China
| | - Zhuo-Ran Gao
- College of Animal Science, Yangtze University, Jingzhou, China
| | - Yi Wang
- College of Animal Science, Yangtze University, Jingzhou, China
| | - Ting Fang
- College of Animal Science, Yangtze University, Jingzhou, China
| | - Yun-Hua Liu
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, China
| | - Yi-Liang Miao
- Institute of Stem Cell and Regenerative Biology, College of Animal Science and Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Zhi-Qiang Du
- College of Animal Science, Yangtze University, Jingzhou, China.,College of Animal Science and Technology, Northeast Agricultural University, Harbin, China
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11
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Bartkova A, Morovic M, Strejcek F, Murin M, Benc M, Percinic FP, Laurincik J. Characterization of porcine oocytes stained with Lissamine Green B and their developmental potential in vitro. Anim Reprod 2020; 17:e20200533. [PMID: 33791031 PMCID: PMC7995255 DOI: 10.1590/1984-3143-ar2020-0533] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Traditional methods for the evaluation of oocyte quality are based on morphological classification of the follicle, cumulus-oocyte complex, polar body and meiotic spindle. This study is focused on the differences between the morphological assessment of oocyte quality, the assessment based on Lissamine Green B (LB) staining and the analysis of oocytes using a proteomic approach. We evaluated the effectiveness of electrochemical and chemical parthenogenetic activation under our laboratory conditions and evaluated the applicability of Lissamine Green B staining of cumulus-oocyte complexes (COCs) as a non-invasive method for predicting the maturational and developmental competence of porcine oocytes cultured in vitro. We determined that chemical parthenogenetic activation using ionomycin and 6-dimethylaminopurine was slightly more effective than electrochemical activation. After oocyte selection according to LB staining, we found significant differences (P<0.05) between the LB- group and LB+ group and the control group in their maturation, cleavage rate and rate of blastocysts. Proteomic analyses identified a selection of proteins that were differentially expressed in each group of analysed oocytes. Oocytes of the LB- group exhibited an increased variability of proteins involved in transcription regulation, proteosynthesis and the protein folding crucial for oocyte maturation and further embryonic development. These results found a better competence of LB- oocytes in maturation, cleavage and ability to reach the blastocyst stage.
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Affiliation(s)
- Alexandra Bartkova
- Faculty of Natural Sciences, Constantine the Philosopher University in Nitra, Nitra, Slovak Republic.,Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Libechov, Czech Republic
| | - Martin Morovic
- Faculty of Natural Sciences, Constantine the Philosopher University in Nitra, Nitra, Slovak Republic
| | - Frantisek Strejcek
- Faculty of Natural Sciences, Constantine the Philosopher University in Nitra, Nitra, Slovak Republic
| | - Matej Murin
- Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Libechov, Czech Republic
| | - Michal Benc
- Faculty of Natural Sciences, Constantine the Philosopher University in Nitra, Nitra, Slovak Republic
| | - Florina Popovska Percinic
- Faculty of Veterinary Medicine, Ss. Cyril and Methodius University in Skopje, Skopje, Republic of North Macedonia
| | - Jozef Laurincik
- Faculty of Natural Sciences, Constantine the Philosopher University in Nitra, Nitra, Slovak Republic.,Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Libechov, Czech Republic
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12
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Yang P, Yin C, Li M, Ma S, Cao Y, Zhang C, Chen T, Zhao H. Mutation analysis of tubulin beta 8 class VIII in infertile females with oocyte or embryonic defects. Clin Genet 2020; 99:208-214. [PMID: 33009822 DOI: 10.1111/cge.13855] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 09/11/2020] [Accepted: 09/18/2020] [Indexed: 11/28/2022]
Abstract
Variants of tubulin beta 8 class VIII (TUBB8) have been shown to be associated with female infertility characterized by oocyte or embryonic defects. To further investigate the mutational spectrum of TUBB8 and the prevalence of variants, we performed Sanger sequencing of TUBB8 on a total of 115 infertile females who had undergone repeated in vitro fertilization cycles with oocyte or embryonic defects and 200 healthy controls. A total of 31 variants which were absent from the controls were identified in 36 unrelated individuals, accounting for a large proportion of this cohort (31.3%). All of the variants including heterozygous/homozygous missense variants and a heterozygous frameshift insertion variant were at conserved sites and predicted to be deleterious. Besides, these variants had diverse phenotypic effects, including not only oocyte maturation arrest, fertilization failure, and early embryonic arrest, but also multi-pronuclei (MPN) formation, which is a new phenotype associated with TUBB8 variants. Overall, this study reveals a large number of variants of the TUBB8 gene in infertile females with oocyte or embryonic defects. Our results not only broaden the mutational and phenotypic spectra of TUBB8 variants, but also further confirm the critical role of TUBB8 in oocyte maturation, fertilization, and early embryonic development.
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Affiliation(s)
- Ping Yang
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, China
| | - Changjian Yin
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, China
| | - Mei Li
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, China
| | - Shuiying Ma
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, China
| | - Yongzhi Cao
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, China
| | - Changming Zhang
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, China
| | - Tailai Chen
- Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Han Zhao
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, China
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13
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Mehrabianfar P, Dehghani F, Karbalaei N, Mesbah F. The effects of metformin on stereological and ultrastructural features of the ovary in streptozotocin -induced diabetes adult rats: An experimental study. Int J Reprod Biomed 2020; 18:651-666. [PMID: 32923931 PMCID: PMC7457152 DOI: 10.18502/ijrm.v13i8.7506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2019] [Revised: 12/18/2019] [Accepted: 04/12/2020] [Indexed: 11/29/2022] Open
Abstract
Background Diabetes is a chronic disease that can affect almost all of the body organs, including male and female reproductive systems. Objective This study was designed to investigate the preventive effects of metformin on stereological and ultrastructure characteristics of the ovary in the streptozotocin-induced diabetes adult female rats. Materials and Methods Seventy adult (8-10 wk) female Sprague-Dawley rats (180-200 gr) were equally divided, as follows: (n = 10/each) control; STZ-induced diabetes (single dose of 65 mg/kg STZ, IP); metformin-treated (50 mg/100 gr of body weight, orally); diabetic-metformin-treated; sham 1, (single dose of sodium citrate); sham 2, (0.5 ml of daily oral distilled water); and sham 3, (sodium citrate + distilled water treated). The body mass index, ovarian weight, blood sugar level, cholesterol, and triglyceride were measured. The stereological and ultrastructural features of ovary were assessed. Results The blood sugar of induced-diabetic rats was increased (p < 0.01). The BMI (p < 0.01), number of granulosa cells (p = 0.04), primordial, primary and secondary follicles (p = 0.03), total volume of ovary (p < 0.01) and cortex, nucleus diameter ratio to the ooplasm were decreased. The number of atretic follicles in the diabetic and diabetic + metformin-treated rats were increased (p < 0.01). The ultrastructural characteristics of ovary were more damaged in diabetic rats. Conclusion Diabetes has destructive effects on ovarian follicles and causes follicular atresia. Also, the size of oocytes, numbers of granulosa cells and ooplasmic organelles, which are involved in the folliculogenesis are affected by diabetes and metformin has no preventive effects.
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Affiliation(s)
- Parisa Mehrabianfar
- Department of Anatomical Sciences School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Farzaneh Dehghani
- Histomorphometry and Stereology Research Center, Shiraz University of Medical Science, Shiraz, Iran
| | - Nargess Karbalaei
- Histomorphometry and Stereology Research Center, Shiraz University of Medical Science, Shiraz, Iran
| | - Fakhroddin Mesbah
- Department of Anatomical Sciences School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
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14
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Yang CX, Wang PC, Liu S, Miao JK, Liu XM, Miao YL, Du ZQ. Long noncoding RNA 2193 regulates meiosis through global epigenetic modification and cytoskeleton organization in pig oocytes. J Cell Physiol 2020; 235:8304-8318. [PMID: 32239703 DOI: 10.1002/jcp.29675] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 03/10/2020] [Indexed: 12/13/2022]
Abstract
Long noncoding RNAs (lncRNAs) regulate a variety of physiological and pathological processes. However, the biological function of lncRNAs in mammalian germ cells remains largely unexplored. Here we identified one novel lncRNA (lncRNA2193) from single-cell RNA sequencing performed on porcine oocytes and investigated its function in oocyte meiosis. During in vitro maturation (IVM), from germinal vesicle (GV, 0 hr), GV breakdown (GVBD, 24 hr), to metaphase II stage (MII, 44 hr), the transcriptional abundance of lncRNA2193 remained stable and high. LncRNA2193 interference by small interfering RNA microinjection into porcine GV oocytes could significantly inhibit rates of GVBD and the first polar body extrusion, but enhance the rates of oocytes with a nuclear abnormality. Moreover, lncRNA2193 knockdown disturbed cytoskeletal organization (F-actin and spindle), and decreased DNA 5-methylcytosine (5mC) and histone trimethylation (H3K4me3, H3K9me3, H3K27me3, and H3K36me3) levels. The lncRNA2193 downregulation induced a decrease of 5mC level could be partially due to the reduction of DNA methyltransferase 3A and 3B, and the elevation of 5mC-hydroxylase ten-11 translocation 2 (TET2). After parthenogenetic activation of MII oocytes, parthenotes exhibited higher fragmentation but lower cleavage rates in the lncRNA2193 downregulated group. However, lncRNA2193 interference performed on mature MII oocytes and parthenotes at 1-cell stage did not affect the cleavage and blasctocyst rates of pathenotes. Taken together, lncRNA2193 plays an important role in porcine oocyte maturation, providing more insights for relevant investigations on mammalian germ cells.
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Affiliation(s)
- Cai-Xia Yang
- College of Animal Science, Yangtze University, Jingzhou, Hubei, China.,College of Animal Science and Technology, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Pei-Chao Wang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Shuai Liu
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Jia-Kun Miao
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Xiao-Man Liu
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Yi-Liang Miao
- Institute of Stem Cell and Regenerative Biology, College of Animal Science and Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Zhi-Qiang Du
- College of Animal Science, Yangtze University, Jingzhou, Hubei, China.,College of Animal Science and Technology, Northeast Agricultural University, Harbin, Heilongjiang, China
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15
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Zigo M, Maňásková-Postlerová P, Zuidema D, Kerns K, Jonáková V, Tůmová L, Bubeníčková F, Sutovsky P. Porcine model for the study of sperm capacitation, fertilization and male fertility. Cell Tissue Res 2020; 380:237-262. [PMID: 32140927 DOI: 10.1007/s00441-020-03181-1] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Accepted: 01/28/2020] [Indexed: 12/12/2022]
Abstract
Mammalian fertilization remains a poorly understood event with the vast majority of studies done in the mouse model. The purpose of this review is to revise the current knowledge about semen deposition, sperm transport, sperm capacitation, gamete interactions and early embryonic development with a focus on the porcine model as a relevant, alternative model organism to humans. The review provides a thorough overview of post-ejaculation events inside the sow's reproductive tract including comparisons with humans and implications for human fertilization and assisted reproductive therapy (ART). Porcine methodology for sperm handling, preservation, in vitro capacitation, oocyte in vitro maturation, in vitro fertilization and intra-cytoplasmic sperm injection that are routinely used in pig research laboratories can be successfully translated into ART to treat human infertility. Last, but not least, new knowledge about mitochondrial inheritance in the pig can provide an insight into human mitochondrial diseases and new knowledge on polyspermy defense mechanisms could contribute to the development of new male contraceptives.
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Affiliation(s)
- Michal Zigo
- Division of Animal Sciences, University of Missouri, Columbia, MO, 65211, USA.
| | - Pavla Maňásková-Postlerová
- Laboratory of Reproductive Biology, Institute of Biotechnology of the Czech Academy of Sciences, 25250, Vestec, Czech Republic.,Department of Veterinary Sciences, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences, 16521, Prague, Czech Republic
| | - Dalen Zuidema
- Division of Animal Sciences, University of Missouri, Columbia, MO, 65211, USA
| | - Karl Kerns
- Division of Animal Sciences, University of Missouri, Columbia, MO, 65211, USA
| | - Věra Jonáková
- Laboratory of Reproductive Biology, Institute of Biotechnology of the Czech Academy of Sciences, 25250, Vestec, Czech Republic
| | - Lucie Tůmová
- Department of Veterinary Sciences, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences, 16521, Prague, Czech Republic
| | - Filipa Bubeníčková
- Department of Veterinary Sciences, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences, 16521, Prague, Czech Republic
| | - Peter Sutovsky
- Division of Animal Sciences, University of Missouri, Columbia, MO, 65211, USA.,Department of Obstetrics, Gynecology & Women's Health, University of Missouri, Columbia, MO, 65211, USA
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16
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Zhou J, Xue Z, He HN, Liu X, Yin SY, Wu DY, Zhang X, Schatten H, Miao YL. Resveratrol delays postovulatory aging of mouse oocytes through activating mitophagy. Aging (Albany NY) 2019; 11:11504-11519. [PMID: 31834867 PMCID: PMC6932885 DOI: 10.18632/aging.102551] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 11/19/2019] [Indexed: 12/17/2022]
Abstract
Resveratrol (3,5,4'-trihydroxystilbene, RSV) is a natural potential anti-aging polyphenolic compound frequently used as a nutritional supplement against several diseases. However, the underlying mechanisms by which resveratrol regulates postovulatory aging of oocytes are still insufficiently known. In this study, we found that resveratrol could delay postovulatory aging and improve developmental competence of oocytes through activating selective mitophagy in the mouse. Resveratrol could maintain spindle morphology but it disturbed cortical granule (CG) distribution during oocyte aging. This might be due to upregulated mitophagy, since blocking mitophagy by cyclosporin A (CsA) treatment affected oocyte quality by damaging mitochondrial function and it decreased embryonic development. In addition, we also observed an involvement of FoxO3a in regulating mitophagy in aging oocytes following resveratrol treatment. Taken together, our results provide evidence that mitophagy induced by resveratrol is a potential mechanism to protect against postovulatory oocyte aging.
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Affiliation(s)
- Jilong Zhou
- Institute of Stem Cell and Regenerative Biology, College of Animal Science and Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China.,Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Huazhong Agricultural University, Ministry of Education, Wuhan 430070, China
| | - Zhouyiyuan Xue
- Institute of Stem Cell and Regenerative Biology, College of Animal Science and Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China.,Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Huazhong Agricultural University, Ministry of Education, Wuhan 430070, China
| | - Hai-Nan He
- Institute of Stem Cell and Regenerative Biology, College of Animal Science and Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China.,Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Huazhong Agricultural University, Ministry of Education, Wuhan 430070, China
| | - Xin Liu
- Institute of Stem Cell and Regenerative Biology, College of Animal Science and Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China.,Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Huazhong Agricultural University, Ministry of Education, Wuhan 430070, China
| | - Shu-Yuan Yin
- Institute of Stem Cell and Regenerative Biology, College of Animal Science and Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China.,Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Huazhong Agricultural University, Ministry of Education, Wuhan 430070, China
| | - Dan-Ya Wu
- Institute of Stem Cell and Regenerative Biology, College of Animal Science and Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China.,Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Huazhong Agricultural University, Ministry of Education, Wuhan 430070, China
| | - Xia Zhang
- Institute of Stem Cell and Regenerative Biology, College of Animal Science and Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China.,Experimental Veterinary Medicine Education, Huazhong Agricultural University, Wuhan 430070, China
| | - Heide Schatten
- Department of Veterinary Pathobiology, University of Missouri, Columbia, MO 65211, USA
| | - Yi-Liang Miao
- Institute of Stem Cell and Regenerative Biology, College of Animal Science and Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China.,Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Huazhong Agricultural University, Ministry of Education, Wuhan 430070, China.,The Cooperative Innovation Center for Sustainable Pig Production, Wuhan 430070, China
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17
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Cao Z, Gao D, Xu T, Zhang L, Tong X, Zhang D, Wang Y, Ning W, Qi X, Ma Y, Ji K, Yu T, Li Y, Zhang Y. Circular RNA profiling in the oocyte and cumulus cells reveals that circARMC4 is essential for porcine oocyte maturation. Aging (Albany NY) 2019; 11:8015-8034. [PMID: 31562810 PMCID: PMC6781969 DOI: 10.18632/aging.102315] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2019] [Accepted: 09/21/2019] [Indexed: 12/13/2022]
Abstract
Thousands of circular RNAs (circRNAs) have been recently discovered in cumulus cells and oocytes from several species. However, the expression and function of circRNA during porcine oocyte meiotic maturation have been never examined. Here, we separately identified 7,067 and 637 circRNAs in both cumulus cells and oocytes via deep sequencing and bioinformatic analysis. Further analysis revealed that a faction of circRNAs is differentially expressed (DE) in a developmental stage-specific manner. The host genes of DE circRNAs are markedly enriched to multiple signaling pathways associated with cumulus cell function and oocyte maturation. Additionally, most DE circRNAs harbor several miRNA targets, suggesting that these DE circRNAs potentially act as miRNA sponge. Importantly, we found that maternal circARMC4 knockdown by siRNA microinjection caused a severely impaired chromosome alignment, and significantly inhibited first polar body extrusion and early embryo development. Taken together, these results demonstrate for the first time that circRNAs are abundantly and dynamically expressed in a developmental stage-specific manner in cumulus cells and oocytes, and maternally expressed circARMC4 is essential for porcine oocyte meiotic maturation and early embryo development.
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Affiliation(s)
- 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
| | - Di Gao
- 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
| | - Tengteng 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
| | - Ling 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
| | - Xu Tong
- 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
| | - Dandan 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
| | - Yiqing 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
| | - Wei Ning
- 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
| | - Xin Qi
- 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
| | - Yangyang Ma
- 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
| | - Kaiyuan Ji
- 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
| | - Tong Yu
- 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
| | - Yunsheng Li
- 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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18
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Zhang Y, Guo J, Nie XW, Li ZY, Wang YM, Liang S, Li S. Rosmarinic acid treatment during porcine oocyte maturation attenuates oxidative stress and improves subsequent embryo development in vitro. PeerJ 2019; 7:e6930. [PMID: 31249731 PMCID: PMC6587974 DOI: 10.7717/peerj.6930] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Accepted: 04/09/2019] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND In vitro maturation (IVM) of oocytes has been widely used in the field of assisted reproductive technology. However, oocytes can be injured by oxidative stress during the process of IVM. METHODS The present study was designed to evaluate the influences of rosmarinic acid (RA) on the IVM of porcine oocytes and the subsequent development of early-stage embryos as well as its underlying mechanisms. Various concentrations of RA (5 µM, 10 µM, and 25 µM) were treated with porcine oocyte maturation medium during the period of IVM. RESULTS AND DISCUSSION The results showed that 5 µM RA treatment during the period of porcine oocyte IVM improves blastocyst quality and hatching ability after parthenogenetic activation. Furthermore, the presence of RA during the period of IVM dramatically improved the total number of cells after somatic cell nuclear transfer compared to the number of cells in the control group. Notably, RA treatment during the period of porcine oocyte IVM decreased intracellular reactive oxygen species generation not only in oocytes but also in cumulus cells. Further analysis showed that the intracellular free thiols levels in the oocytes were enhanced by treatment with RA during the period of porcine oocyte IVM compared to the free thiols levels in the control groups. These results indicate that RA improves the developmental competence of porcine oocytes during the IVM period by attenuating oxidative stress.
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Affiliation(s)
- Yan Zhang
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
- Department of Animal Science, Chungbuk National University, Cheongju, South Korea
| | - Jing Guo
- Chongqing Reproductive and Genetics Institute, Chongqing, China
- Chongqing Key Laboratory of Human Embryo Engineering, Chongqing, China
| | - Xiao Wei Nie
- Department of Reproductive Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Zi Yue Li
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Yu Meng Wang
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Shuang Liang
- Department of Animal Science, College of Animal Sciences, Jilin University, Changchun, China
| | - Suo Li
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
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19
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Zhang Y, Wu L, Wan X, Wang H, Li X, Pan Z, Sun S. Loss of PKC mu function induces cytoskeletal defects in mouse oocyte meiosis. J Cell Physiol 2019; 234:18513-18523. [DOI: 10.1002/jcp.28487] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 02/19/2019] [Accepted: 02/20/2019] [Indexed: 01/07/2023]
Affiliation(s)
- Yu Zhang
- College of Animal Science and Technology, Nanjing Agricultural University Nanjing China
| | - Lan‐Lan Wu
- College of Animal Science and Technology, Nanjing Agricultural University Nanjing China
| | - Xiang Wan
- College of Animal Science and Technology, Nanjing Agricultural University Nanjing China
| | - Hong‐Hui Wang
- College of Animal Science and Technology, Nanjing Agricultural University Nanjing China
| | - Xiao‐Han Li
- College of Animal Science and Technology, Nanjing Agricultural University Nanjing China
| | - Zhen‐Nan Pan
- College of Animal Science and Technology, Nanjing Agricultural University Nanjing China
| | - Shao‐Chen Sun
- College of Animal Science and Technology, Nanjing Agricultural University Nanjing China
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20
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Cao Z, Gao D, Xu T, Tong X, Wang Y, Li Y, Fang F, Ding J, Zhang X, Zhang Y. Human exhaled air can efficiently support in vitro maturation of porcine oocytes and subsequent early embryonic development. Anim Reprod 2018; 15:29-38. [PMID: 33365092 PMCID: PMC7746221 DOI: 10.21451/1984-3143-ar2017-0027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Air phase is an indispensable environmental factor affecting oocyte maturation and early
embryo development. Human exhaled air was previously proved to be a reliable and inexpensive
atmosphere that sustains normal early development of mouse and bovine embryos. However,
whether human exhaled air can support in vitro maturation (IVM) of porcine
oocytes is not yet known. To evaluate the feasibility of maturing oocytes in human exhaled
air, we examined oocyte morphology, BMP15 expression, nuclear and cytoplasmic
maturation. We found that cumulus expansion status, expression levels of BMP15
important for cumulus expansion and the rate of first polar body emission were similar
among human exhaled air, 5% O2 or 20% O2 in air after IVM of 44 h. Furthermore,
the percentage of metaphase II (MII) oocytes showing normal cortical and sub-membranous
localization of cortical granules and diffused mitochondrial distribution patterns is
comparable among groups. The cleavage, blastocyst rate and total cell number were not apparently
different for parthenogenetic activated and somatic cloned embryos derived from MII oocytes
matured in three air phases, suggesting oocytes matured in human exhaled air obtain normal
developmental competence. Taken together, human exhaled air can efficiently support
in vitro maturation of porcine oocytes and subsequent early embryonic development.
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Affiliation(s)
- Zubing Cao
- Anhui Provincial Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, , ,
| | - Di Gao
- Anhui Provincial Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, , ,
| | - Tengteng Xu
- Anhui Provincial Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, , ,
| | - Xu Tong
- Anhui Provincial Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, , ,
| | - Yiqing Wang
- Anhui Provincial Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, , ,
| | - Yunsheng Li
- Anhui Provincial Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, , ,
| | - Fugui Fang
- Anhui Provincial Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, , ,
| | - Jianping Ding
- Anhui Provincial Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, , ,
| | - Xiaorong Zhang
- Anhui Provincial Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, , ,
| | - Yunhai Zhang
- Anhui Provincial Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, , ,
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Toxicity and related mechanisms of dihydroartemisinin on porcine oocyte maturation in vitro. Toxicol Appl Pharmacol 2018; 341:8-15. [DOI: 10.1016/j.taap.2018.01.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Revised: 12/29/2017] [Accepted: 01/04/2018] [Indexed: 11/19/2022]
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22
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Activity of MPF and expression of its related genes in mouse MI oocytes exposed to cadmium. Food Chem Toxicol 2017; 112:332-341. [PMID: 29287790 DOI: 10.1016/j.fct.2017.12.046] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Revised: 12/05/2017] [Accepted: 12/22/2017] [Indexed: 11/20/2022]
Abstract
Research has revealed that cadmium can disrupt ovarian function; however, few reports have focused on MI oocytes meiotic progression, especially the activity of maturation promoting factor (MPF) and its related genes (Cdk1, Ccnb1, and Cdc25b) expression. In this study, GV oocytes cultured in vitro for 0, 6, and 9 hours with five groups (control and doses of 0.05, 0.5, 2.5, and 5 μM Cd). At the same dose of cadmium but different exposure time: compared with 0h, Periodic changes in MPF activity were changed and continuously increased over time. The mRNA and protein expression of each MPF-related gene in different cadmium dose groups were changed compared with that of 0h. At the same exposure time but different dose of cadmium: compared with control group, MPF activity, mRNA and protein expressions of each MPF-related gene in all the cadmium exposure groups were increased at 9h after exposure. Cadmium maintains the high MPF activity in mouse MI oocytes during its meiotic process and disturbs the periodic change of MPF activity; meanwhile, cadmium exposure promotes the syntheses of MPF-related gene, which may be one of the molecular mechanisms for the maintenance of high MPF activity, and ultimately prevents the meiotic progression in oocytes.
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23
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Optimal doses of EGF and GDNF act as biological response modifiers to improve porcine oocyte maturation and quality. ZYGOTE 2017; 25:423-433. [DOI: 10.1017/s0967199417000181] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
SummaryIt is well documented that both epidermal growth factor (EGF) and glial cell line-derived neurotrophic factor (GDNF) are critical for porcine oocyte maturation, however, little information is known about their mechanism of action in vitro. To gain insight into the mechanisms of action of the optimum doses of EGF and GDNF on porcine oocyte maturation, porcine cumulus–oocyte complexes (COCs) were matured in defined porcine oocyte medium supplemented with EGF, GDNF or a combination of both at varying concentrations (0–100 ng/ml) for 44 h. Nuclear and cytoplasmic maturation were determined in terms of nuclear stage after DNA staining with Hoechst and cortical granule distribution after lectin labeling, respectively. Mature oocytes were subsequently collected for gene expression analysis or subjected to in vitro fertilization and cultured for 7 days. The results showed that EGF and/or GDNF, when administered in a certain dose (50 ng/μl) to the maturation medium, not only effectively improved the synchronization of nuclear and cytoplasmic maturation processes within the oocyte, but enhanced expression of their corresponding receptors in mature oocytes (P < 0.05). Moreover, supplementation with an optimal combination of EGF + GDNF resulted in elevation of TFAM transcripts as well as a decrease of caspase-3 transcripts compared with the other studied groups (P < 0.05). Collectively, our results indicate that treatment of porcine oocytes with specific-dose combinations of EGF and GDNF stimulates oocyte quality and competence by transcriptional modulation of genes involved in oocyte survival and competence.
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Fertilization 2: Polyspermic Fertilization. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 1001:105-123. [DOI: 10.1007/978-981-10-3975-1_7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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25
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Novel zona pellucida gene variants identified in patients with oocyte anomalies. Fertil Steril 2017; 107:1364-1369. [DOI: 10.1016/j.fertnstert.2017.03.029] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Revised: 01/21/2017] [Accepted: 03/24/2017] [Indexed: 01/17/2023]
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26
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Sabetian S, Shamsir MS. Deficiency in Sperm-Egg Protein Interaction as a Major Cause of Fertilization Failure. J Membr Biol 2017; 250:133-144. [PMID: 28280854 DOI: 10.1007/s00232-017-9954-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Accepted: 02/21/2017] [Indexed: 11/29/2022]
Abstract
Complete elucidation of fertilization process at molecular level is one of the unresolved challenges in sexual reproduction studies, and understanding the molecular mechanism is crucial in overcoming difficulties in infertility and unsuccessful in vitro fertilization. Sperm-oocyte interaction is one of the most remarkable events in fertilization process, and deficiency in protein-protein interactions which mediate this interaction is a major cause of unexplained infertility. Due to detection of how the various defects of sperm-oocyte interaction can affect fertilization failure, different experimental methods have been applied. This review summarizes the current understanding of sperm-egg interaction mechanism during fertilization and also accumulates the different types of sperm-egg interaction abnormalities and their association with infertility. Several detection approaches regarding sperm-egg protein interactions and the associated defects are reviewed in this paper.
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Affiliation(s)
- Soudabeh Sabetian
- Department of Biological and Health Sciences, Faculty of Bioscience & Medical Engineering, Universiti Teknologi Malaysia, 81310, Johor, Malaysia.
| | - Mohd Shahir Shamsir
- Department of Biological and Health Sciences, Faculty of Bioscience & Medical Engineering, Universiti Teknologi Malaysia, 81310, Johor, Malaysia.
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27
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Li X, Wang YK, Song ZQ, Du ZQ, Yang CX. Dimethyl Sulfoxide Perturbs Cell Cycle Progression and Spindle Organization in Porcine Meiotic Oocytes. PLoS One 2016; 11:e0158074. [PMID: 27348312 PMCID: PMC4922549 DOI: 10.1371/journal.pone.0158074] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2016] [Accepted: 06/09/2016] [Indexed: 12/01/2022] Open
Abstract
Meiotic maturation of mammalian oocytes is a precisely orchestrated and complex process. Dimethyl sulfoxide (DMSO), a widely used solvent, drug, and cryoprotectant, is capable of disturbing asymmetric cytokinesis of oocyte meiosis in mice. However, in pigs, DMSO’s effect on oocyte meiosis still remains unknown. We aimed to evaluate if DMSO treatment will affect porcine oocyte meiosis and the underlying molecular changes as well. Interestingly, we did not observe the formation of the large first polar body and symmetric division for porcine oocytes treated with DMSO, contrary to findings reported in mice. 3% DMSO treatment could inhibit cumulus expansion, increase nuclear abnormality, disturb spindle organization, decrease reactive oxygen species level, and elevate mitochondrial membrane potential of porcine oocytes. There was no effect on germinal vesicle breakdown rate regardless of DMSO concentration. 3% DMSO treatment did not affect expression of genes involved in spindle organization (Bub1 and Mad2) and apoptosis (NF-κB, Pten, Bcl2, Caspase3 and Caspase9), however, it significantly decreased expression levels of pluripotency genes (Oct4, Sox2 and Lin28) in mature oocytes. Therefore, we demonstrated that disturbed cumulus expansion, chromosome alignment, spindle organization and pluripotency gene expression could be responsible for DMSO-induced porcine oocyte meiotic arrest and the lower capacity of subsequent embryo development. Our results provide new insights on DMSO’s effect on porcine oocyte meiosis and raise safety concerns over DMSO’s usage on female reproduction in both farm animals and humans.
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Affiliation(s)
- Xuan Li
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
| | - Yan-Kui Wang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
| | - Zhi-Qiang Song
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
| | - Zhi-Qiang Du
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
- * E-mail: (CXY); (ZQD)
| | - Cai-Xia Yang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
- * E-mail: (CXY); (ZQD)
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28
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Lee S, Jin JX, Khoirinaya C, Kim GA, Lee BC. Lanosterol influences cytoplasmic maturation of pig oocytes in vitro and improves preimplantation development of cloned embryos. Theriogenology 2015; 85:575-84. [PMID: 26494176 DOI: 10.1016/j.theriogenology.2015.09.041] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Revised: 09/18/2015] [Accepted: 09/18/2015] [Indexed: 12/26/2022]
Abstract
Lanosterol is a precursor of meiosis-activating sterols in the cholesterol biosynthetic pathway and induces a physiological signal that instructs the oocyte to reinitiate meiosis. In this study, we examined the effect of lanosterol on IVM of porcine oocytes, specifically on nuclear maturation, cytoplasmic maturation by investigating intracellular glutathione (GSH) levels and lipid content, embryonic development after parthenogenetic activation and somatic cell nuclear transfer (SCNT), and on gene expression in cumulus cells, oocytes, and SCNT-derived blastocysts. There was no significant difference in nuclear maturation rates between the control and treatment groups (10, 50, and 100 μM of lanosterol added to IVM culture medium). Supplementation with 50-μM lanosterol significantly increased lipid content and GSH levels and decreased reactive oxygen species levels compared with the control. In addition, oocytes treated with 50 μM of lanosterol exhibited significantly increased blastocyst formation rates and total cell numbers after parthenogenetic activation (30.3% and 63.9 vs. 21.6% and 36.5, respectively) and SCNT (18.2% and 53.7 vs. 12.6% and 37.5, respectively), when compared with the control group. Cumulus cells treated with 50 μM of lanosterol showed significantly increased 14α-demethylase, Δ14-reductase, and Δ7-reductase mRNA transcript levels. Significantly increased PPARγ, SREBF1, GPX1, and Bcl-2 and decreased Bax transcript levels were observed in mature oocytes treated with 50 μM of lanosterol compared with the control. SCNT blastocysts derived from 50-μM lanosterol-treated oocytes had significantly higher POU5F1, FGFR2, and Bcl-2 transcript levels than control SCNT-derived blastocysts. In conclusion, supplementation with 50 μM of lanosterol during IVM improves preimplantation development of SCNT embryos by elevating lipid content of oocytes, increasing GSH levels, decreasing reactive oxygen species levels, and regulating genes related to the cholesterol biosynthetic pathway in cumulus cells, to lipid metabolism and apoptosis in oocytes, and their developmental potential and apoptosis in blastocysts.
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Affiliation(s)
- Sanghoon Lee
- Department of Theriogenology and Biotechnology, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Jun-Xue Jin
- Department of Theriogenology and Biotechnology, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Candrani Khoirinaya
- Department of Theriogenology and Biotechnology, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Geon A Kim
- Department of Theriogenology and Biotechnology, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Byeong Chun Lee
- Department of Theriogenology and Biotechnology, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea; Institute of Green Bio Science and Technology, Seoul National University, Pyeongchang, Kangwon do, Korea.
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Combination effects of epidermal growth factor and glial cell line-derived neurotrophic factor on the in vitro developmental potential of porcine oocytes. ZYGOTE 2015; 24:465-76. [PMID: 26350562 DOI: 10.1017/s0967199415000416] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
The developmental potential of in vitro matured porcine oocytes is still lower than that of oocytes matured and fertilized in vivo. Major problems that account for the lower efficiency of in vitro production include the improper nuclear and cytoplasmic maturation of oocytes. With the aim of improving this issue, the single and combined effects of epidermal growth factor (EGF) and glial cell line-derived neurotrophic factor (GDNF) on oocyte developmental competence were investigated. Porcine cumulus-oocyte cell complexes (COCs) were matured in serum-free medium supplemented with EGF (0, 10 or 50 ng/ml) and/or GDNF (0, 10 or 50 ng/ml) for 44 h, and subsequently subjected to fertilization and cultured for 7 days in vitro. The in vitro-formed blastocysts derived from selected growth factor groups (i.e. EGF = 50 ng/ml; GDNF = 50 ng/ml; EGF = 50 ng/ml + GDNF = 50 ng/ml) were also used for mRNA expression analysis, or were subjected to Hoechst staining. The results showed that the addition of EGF and/or GDNF during oocyte maturation dose dependently enhanced oocyte developmental competence. Compared with the embryos obtained from control or single growth factor-treated oocytes, treatment with the combination of EGF and GDNF was shown to significantly improve oocyte competence in terms of blastocyst formation, blastocyst cell number and blastocyst hatching rate (P < 0.05), and also simultaneously induced the expression of BCL-xL and TERT and suppressed the expression of caspase-3 in resulting blastocysts (P < 0.05). These results suggest that both GDNF and EGF may play an important role in the regulation of porcine in vitro oocyte maturation and the combination of these growth factors could promote oocyte competency and blastocyst quality.
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30
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Franczak A, Wojciechowicz B, Kolakowska J, Zglejc K, Kotwica G. Transcriptomic analysis of the myometrium during peri-implantation period and luteolysis--the study on the pig model. Funct Integr Genomics 2014; 14:673-82. [PMID: 25240502 PMCID: PMC4233113 DOI: 10.1007/s10142-014-0401-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2014] [Revised: 09/04/2014] [Accepted: 09/07/2014] [Indexed: 11/29/2022]
Abstract
In pigs, implantation begins with the attachment of embryos to the endometrium. As the process is regulated by the expression of numerous genes, endometrial transcriptomic profiles have been extensively studied in early gravid pigs. However, the myometrium, a secretory tissue, should not be neglected, as it can also participate in the regulation of implantation in early pregnant pigs. To clarify this issue, the transcriptomic profile of the porcine myometrium during the peri-implantation period (i.e. on days 15 to 16 of pregnancy) was compared with the profile observed during luteolysis (i.e. on days 15 to 16 of the oestrous cycle) with an Agilent’s Porcine (V2) Two-Colour Gene Expression Microarray 4 × 44 (Agilent, USA). Analysis of the microarray data revealed that of 526 unique, accurately annotated genes, the expression of 271 unique genes was upregulated, while the expression of 255 genes was downregulated in pregnant versus cyclic myometrium. The in-depth data analysis revealed differential expression of genes encoding for factors involved in immunomodulation, tissue growth and differentiation, and prostaglandin and steroid biosynthesis and action. Moreover, the comparison of the obtained data on the myometrial transcriptome with our previously published results on the endometrial transcriptome allowed us to determine substantial differences in the regulatory function of both tissues. The new insights into the function of the myometrium of early pregnant pigs obtained here are in agreement with our previous results that suggest that this tissue plays an important role in providing optimal conditions for developing embryos. Therefore, the importance of the myometrium as an active embryo signal-responsive tissue during early pregnancy cannot be underestimated.
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Affiliation(s)
- Anita Franczak
- Department of Animal Physiology, Faculty of Biology and Biotechnology, Oczapowski 1A, University of Warmia and Mazury in Olsztyn, 10-718, Olsztyn, Poland,
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31
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Li J, Huan Y, Xie B, Wang J, Zhao Y, Jiao M, Huang T, Kong Q, Liu Z. Identification and characterization of an oocyte factor required for sperm decondensation in pig. Reproduction 2014; 148:367-75. [PMID: 25030891 DOI: 10.1530/rep-14-0264] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Mammalian oocytes possess factors to support fertilization and embryonic development, but knowledge on these oocyte-specific factors is limited. In the current study, we demonstrated that porcine oocytes with the first polar body collected at 33 h of in vitro maturation sustain IVF with higher sperm decondensation and pronuclear formation rates and support in vitro development with higher cleavage and blastocyst rates, compared with those collected at 42 h (P<0.05). Proteomic analysis performed to clarify the mechanisms underlying the differences in developmental competence between oocytes collected at 33 and 42 h led to the identification of 18 differentially expressed proteins, among which protein disulfide isomerase associated 3 (PDIA3) was selected for further study. Inhibition of maternal PDIA3 via antibody injection disrupted sperm decondensation; conversely, overexpression of PDIA3 in oocytes improved sperm decondensation. In addition, sperm decondensation failure in PDIA3 antibody-injected oocytes was rescued by dithiothreitol, a commonly used disulfide bond reducer. Our results collectively report that maternal PDIA3 plays a crucial role in sperm decondensation by reducing protamine disulfide bonds in porcine oocytes, supporting its utility as a potential tool for oocyte selection in assisted reproduction techniques.
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Affiliation(s)
- Jingyu Li
- Laboratory of Embryo BiotechnologyCollege of Life Science, Northeast Agricultural University, Harbin, Heilongjiang Province 150030, ChinaShandong Academy of Agricultural SciencesDairy Cattle Research Center, Jinan, Shandong Province 250100, China
| | - Yanjun Huan
- Laboratory of Embryo BiotechnologyCollege of Life Science, Northeast Agricultural University, Harbin, Heilongjiang Province 150030, ChinaShandong Academy of Agricultural SciencesDairy Cattle Research Center, Jinan, Shandong Province 250100, China
| | - Bingteng Xie
- Laboratory of Embryo BiotechnologyCollege of Life Science, Northeast Agricultural University, Harbin, Heilongjiang Province 150030, ChinaShandong Academy of Agricultural SciencesDairy Cattle Research Center, Jinan, Shandong Province 250100, China
| | - Jiaqiang Wang
- Laboratory of Embryo BiotechnologyCollege of Life Science, Northeast Agricultural University, Harbin, Heilongjiang Province 150030, ChinaShandong Academy of Agricultural SciencesDairy Cattle Research Center, Jinan, Shandong Province 250100, China
| | - Yanhua Zhao
- Laboratory of Embryo BiotechnologyCollege of Life Science, Northeast Agricultural University, Harbin, Heilongjiang Province 150030, ChinaShandong Academy of Agricultural SciencesDairy Cattle Research Center, Jinan, Shandong Province 250100, China
| | - Mingxia Jiao
- Laboratory of Embryo BiotechnologyCollege of Life Science, Northeast Agricultural University, Harbin, Heilongjiang Province 150030, ChinaShandong Academy of Agricultural SciencesDairy Cattle Research Center, Jinan, Shandong Province 250100, China
| | - Tianqing Huang
- Laboratory of Embryo BiotechnologyCollege of Life Science, Northeast Agricultural University, Harbin, Heilongjiang Province 150030, ChinaShandong Academy of Agricultural SciencesDairy Cattle Research Center, Jinan, Shandong Province 250100, China
| | - Qingran Kong
- Laboratory of Embryo BiotechnologyCollege of Life Science, Northeast Agricultural University, Harbin, Heilongjiang Province 150030, ChinaShandong Academy of Agricultural SciencesDairy Cattle Research Center, Jinan, Shandong Province 250100, China
| | - Zhonghua Liu
- Laboratory of Embryo BiotechnologyCollege of Life Science, Northeast Agricultural University, Harbin, Heilongjiang Province 150030, ChinaShandong Academy of Agricultural SciencesDairy Cattle Research Center, Jinan, Shandong Province 250100, China
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A role of lipid metabolism during cumulus-oocyte complex maturation: impact of lipid modulators to improve embryo production. Mediators Inflamm 2014; 2014:692067. [PMID: 24733963 PMCID: PMC3964899 DOI: 10.1155/2014/692067] [Citation(s) in RCA: 90] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2013] [Revised: 01/09/2014] [Accepted: 01/18/2014] [Indexed: 11/18/2022] Open
Abstract
Oocyte intracellular lipids are mainly stored in lipid droplets (LD) providing energy for proper growth and development. Lipids are also important signalling molecules involved in the regulatory mechanisms of maturation and hence in oocyte competence acquisition. Recent studies show that LD are highly dynamic organelles. They change their shape, volume, and location within the ooplasm as well as their interaction with other organelles during the maturation process. The droplets high lipid content has been correlated with impaired oocyte developmental competence and low cryosurvival. Yet the underlying mechanisms are not fully understood. In particular, the lipid-rich pig oocyte might be an excellent model to understand the role of lipids and fatty acid metabolism during the mammalian oocyte maturation and their implications on subsequent monospermic fertilization and preimplantation embryo development. The possibility of using chemical molecules to modulate the lipid content of oocytes and embryos to improve cryopreservation as well as its biological effects during development is here described. Furthermore, these principles of lipid content modulation may be applied not only to germ cells and embryo cryopreservation in livestock production but also to biomedical fundamental research.
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33
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Effect of sera of normal cycling, pregnant and repeat breeding buffaloes (Bubalus bubalis) on in vitro maturation of buffalo, sheep and goat oocytes. ASIAN PACIFIC JOURNAL OF REPRODUCTION 2013. [DOI: 10.1016/s2305-0500(13)60129-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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34
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Mao J, Whitworth KM, Spate LD, Walters EM, Zhao J, Prather RS. Regulation of oocyte mitochondrial DNA copy number by follicular fluid, EGF, and neuregulin 1 during in vitro maturation affects embryo development in pigs. Theriogenology 2012; 78:887-97. [PMID: 22626782 DOI: 10.1016/j.theriogenology.2012.04.002] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2012] [Revised: 03/20/2012] [Accepted: 04/09/2012] [Indexed: 01/17/2023]
Abstract
Little is known about mitochondrial DNA (mtDNA) replication during oocyte maturation and its regulation by extracellular factors. The present study determined the effects of supplementation of maturation medium with porcine follicular fluid (pFF; 0, 10%, 20%, and 30%) on mtDNA copy number and oocyte maturation in experiment 1; the effects on epidermal growth factor (EGF; 10 ng/mL), neuregulin 1 (NRG1; 20 ng/mL), and NRG1 + insulin-like growth factor 1 (IGF1; 100 ng/mL + NRG1 20 ng/mL), on mtDNA copy number, oocyte maturation, and embryo development after parthenogenic activation in experiment 2; and effects on embryo development after in vitro fertilization in experiment 3. Overall, mtDNA copy number increased from germinal vesicle (GV) to metaphase II (MII) stage oocytes after in vitro maturation (GV: 167 634.6 ± 20 740.4 vs. MII: 275 131.9 ± 9 758.4 in experiment 1; P < 0.05; GV: 185 004.7 ± 20 089.3 vs. MII: 239 392.8 ± 10 345.3 in experiment 2; P < 0.05; Least Squares Means ± SEM). Supplementation of IVM medium with pFF inhibited mtDNA replication (266 789.9 ± 11 790.4 vs. 318 510.1 ± 20 377.4; P < 0.05) and oocyte meiotic maturation (67.3 ± 0.7% vs. 73.2 ± 1.2%, for the pFF supplemented and zero pFF control, respectively; P < 0.01). Compared with the control, addition of growth factors enhanced oocyte maturation. Furthermore, supplementation of NRG1 stimulated mitochondrial replication, increased mtDNA copies in MII oocytes than in GV oocytes, and increased percentage of blastocysts in both parthenogenetic and in vitro fertilized embryos. In this study, mitochondrial biogenesis in oocytes was stimulated during in vitro maturation. Oocyte mtDNA copy number was associated with developmental competence. Supplementation of maturation medium with NRG1 increased mtDNA copy number, and thus provides a means to improve oocyte quality and developmental competence in pigs.
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Affiliation(s)
- J Mao
- Division of Animal Sciences, University of Missouri, Columbia, Missouri, USA
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35
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OLA SI, SUN QY. Factors Influencing the Biochemical Markers for Predicting Mammalian Oocyte Quality. J Reprod Dev 2012; 58:385-92. [DOI: 10.1262/jrd.11-084h] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Safiriyu Idowu OLA
- Department of Animal Sciences, Obafemi Awolowo University, Ile-Ife, Nigeria
| | - Qing-Yuan SUN
- State Key Laboratory of Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
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36
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Effect of lanosterol on the in vitro maturation in semi-defined culture system of prepubertal ewe oocytes. ZYGOTE 2011; 22:50-7. [DOI: 10.1017/s096719941100044x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
SummaryThe choice of medium and supplements can affect meiotic regulation and may have an impact on the regulation of mammalian oocyte growth and embryonic cell function. The aim of the present study was to assess the effects of oxygen concentration and endogenous lanosterol on the in vitro maturation (IVM) media without serum and based on recombinant human chorionic gonadotrophin in prepubertal ewe oocytes. Firstly, the effect of varying oxygen concentrations (5% and 20%) during IVM in TCM-199 supplemented (4 mg/ml bovine serum albumin (BSA), 100 μM cysteamine, 0.3 mM sodium pyruvate, 0.1 UI/ml recombinant follicle-stimulating hormone (r-FSH; Gonal-F® 75 UI, Serono, Italy), 0.1 UI/ml recombinant leuteinizing hormone (r-LH; Lhadi® 75 UI, Serono, Italy) and 1 μg/ml estradiol-17β) on subsequent nuclear maturation of oocytes examined under ultraviolet light following staining with bisbenzimide (Hoechst 33342) was investigated. Secondly, two concentrations of lanosterol (0, 10 and 50 μM) were added to the IVM medium. Nuclear maturation of oocytes was examined as previously. Lipid content in oocytes, an important indicator of cytoplasmic maturity, was also measured using Nile red fluorescent stain. The results showed that low oxygen concentration affected the nuclear maturation. Similarly, a significantly higher rate of meiosis resumption was observed with 10 μM (72.3%) of lanosterol compared with the control (51.8%) or 50 μM of lanosterol (59.4%). A significantly higher content of lipids was also observed with 10 and 50 μM of lanosterol (7.3 ± 0.2 × 106 and 7.4 ± 0.2 × 106 arbitrary units of fluorescence) compared with the control (6.7 ± 0.2 × 106 arbitrary units of fluorescence). The results indicate that 10 μM lanosterol during IVM in medium without serum and based on recombinant human chorionic gonadotrophin has a positive effect on maturation of prepubertal ewe oocytes.
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Nascimento AB, Albornoz MS, Che L, Visintin JA, Bordignon V. Synergistic effect of porcine follicular fluid and dibutyryl cyclic adenosine monophosphate on development of parthenogenetically activated oocytes from pre-pubertal gilts. Reprod Domest Anim 2011; 45:851-9. [PMID: 19416484 DOI: 10.1111/j.1439-0531.2009.01368.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
This study investigated the effect of porcine follicular fluid (PFF) and dibutyryl cyclic adenosine monophosphate (dbcAMP) during in vitro maturation (IVM) of porcine oocytes on meiotic maturation, fertilization and embryo development, and compared the effect of supplementing the embryo culture media with PFF or foetal bovine serum (FBS) on embryo development. Oocytes from pre-pubertal gilts were IVM for 44 h, and parthenogenetically activated or in vitro-fertilized. Embryos were cultured in porcine zygote medium (PZM3) for 7 days. Cleavage and blastocyst rates were evaluated at 48 h and 7 days of culture. The supplementation of the IVM medium with 25% PFF and 1 mm dbcAMP for the first 22 h resulted in more (p < 0.05) embryos developing to the blastocyst stage as compared with the inclusion of dbcAMP alone. The dbcAMP + PFF combination increased (p < 0.05) the average number of nuclei per blastocyst as compared with either of these components alone or in its absence. A synergistic effect of dbcAMP + PFF during IVM was also reflected in the capacity of oocytes to regulate sperm penetration and prevent polyspermy, as twice as many oocytes from the control group were penetrated by more than one sperm as compared with those matured in the presence of both dbcAMP and PFF. The supplementation of PZM3 with 10% FBS from days 5 to 7 of culture significantly improved the total cell quantity in embryos derived either from control or dbcAMP + PFF matured oocytes. There was no effect on the total cell quantity when FBS was replaced by the same concentration of PFF. These studies showed that dbcAMP, PFF and FBS can improve both the quantity (57.3% vs 41.5%) and quality (74.8 vs 33.3 nuclei) of porcine blastocysts derived from oocytes recovered of pre-pubertal gilts.
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Affiliation(s)
- A B Nascimento
- Departamento de Reprodução Animal, Faculdade de Medicina Veterinária, Universidade de São Paulo, SP, Brazil
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Lasiene K, Lasys V, Glinskyte S, Valanciute A, Vitkus A. Relevance and Methodology for the Morphological Analysis of Oocyte Quality in IVF and ICSI. ACTA ACUST UNITED AC 2011. [DOI: 10.1177/205891581100200102] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Oocytes collected from patients following ovarian stimulation exhibit varying qualities. The quality of oocytes has an effect on its subsequent fertilization, developmental competence post-fertilization and the viability of resultant embryos. The aim of this article was to review the morphological criteria devised for assessment of oocyte quality by ordinary light and polarized light microscopy before IVF or ICSI. The parameters employed in the evaluation of oocyte morphology include the appearance of: structure of the cumulus–oocyte complex, oocyte cytoplasm, perivitelline space, zona pellucida, polar body and meiotic spindle.
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Affiliation(s)
- Kristina Lasiene
- Department of Histology and Embryology, Academy of Medicine, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Vidmantas Lasys
- Department of Anatomy and Physiology, Veterinary Academy, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Sandra Glinskyte
- Department of Anatomy and Physiology, Veterinary Academy, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Angelija Valanciute
- Department of Histology and Embryology, Academy of Medicine, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Aleksandras Vitkus
- Department of Histology and Embryology, Academy of Medicine, Lithuanian University of Health Sciences, Kaunas, Lithuania
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Alvarez Sedó C, Schatten H, Combelles CM, Rawe VY. The nuclear mitotic apparatus (NuMA) protein: localization and dynamics in human oocytes, fertilization and early embryos. Mol Hum Reprod 2011; 17:392-8. [PMID: 21297155 DOI: 10.1093/molehr/gar009] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The oocyte's meiotic spindle is a dynamic structure that relies on microtubule organization and regulation by centrosomes. Disorganization of centrosomal proteins, including the nuclear mitotic apparatus (NuMA) protein and the molecular motor complex dynein/dynactin, can lead to chromosomal instability and developmental abnormalities. The present study reports the distribution and function of these proteins in human oocytes, zygotes and early embryos. A total of 239 oocytes, 90 zygotes and discarded embryos were fixed and analyzed with confocal microscopy for NuMA and dynactin distribution together with microtubules and chromatin. Microtubule-associated dynein-dependent transport functions were explored by inhibiting phosphatase and ATPase activity with sodium-orthovanadate (SOV). At germinal vesicle (GV) stages, NuMA was dispersed across the nucleoplasm. After GV breaks down, NuMA became cytoplasmic before localizing at the spindle poles in metaphase I and II oocytes. Aberrant NuMA localization patterns were found during oocyte in vitro maturation. After fertilization, normal and abnormal pronuclear stage zygotes and embryos displayed translocation of NuMA to interphase nuclei. SOV treatment for up to 2 h induced lower maturation rates with chromosomal scattering and ectopic localization of NuMA. Accurate distribution of NuMA is important for oocyte maturation, zygote and embryo development in humans. Proper assembly of NuMA is likely necessary for bipolar spindle organization and human oocyte developmental competence.
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Liang YY, Ye DN, Laowtammathron C, Phermthai T, Nagai T, Somfai T, Parnpai R. Effects of Chemical Activation Treatment on Development of Swamp Buffalo (Bubalus bubalis) Oocytes Matured In Vitro and Fertilized by Intracytoplasmic Sperm Injection. Reprod Domest Anim 2011; 46:e67-73. [DOI: 10.1111/j.1439-0531.2010.01636.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Verma N, Rettenmeier AW, Schmitz-Spanke S. Recent advances in the use of Sus scrofa
(pig) as a model system for proteomic studies. Proteomics 2011; 11:776-93. [DOI: 10.1002/pmic.201000320] [Citation(s) in RCA: 130] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2010] [Revised: 08/30/2010] [Accepted: 09/06/2010] [Indexed: 12/11/2022]
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YOKOTA K, HIRANO T, URATA N, YAMAUCHI N, HATTORI MA. Upregulation of P-Glycoprotein Activity in Porcine Oocytes and Granulosa Cells During In Vitro Maturation. J Reprod Dev 2011; 57:322-6. [DOI: 10.1262/jrd.10-137m] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Kazuko YOKOTA
- Department of Animal and Marine Bioresource Sciences, Graduate School of Agriculture, Kyushu University
| | - Takuro HIRANO
- Department of Animal and Marine Bioresource Sciences, Graduate School of Agriculture, Kyushu University
| | - Narumi URATA
- Department of Animal and Marine Bioresource Sciences, Graduate School of Agriculture, Kyushu University
| | - Nobuhiko YAMAUCHI
- Department of Animal and Marine Bioresource Sciences, Graduate School of Agriculture, Kyushu University
| | - Masa-aki HATTORI
- Department of Animal and Marine Bioresource Sciences, Graduate School of Agriculture, Kyushu University
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Abstract
When removed from the follicles, during the 44 h process of in vitro maturation (IVM) fully grown porcine oocytes resume meiosis spontaneously from the late diplotene stage of the first meiotic prophase and proceed to the metaphase-II (MII) stage at which they remain arrested until fertilization. However, the resumption may start at various times causing heterogeneity in the nuclear stage and also in cytoplasmic characteristics (i.e., the activity of certain protein kinases) within a population. Those oocytes that reach the MII stage earlier than others undergo an ageing process which is detrimental for further embryo development. The synchronization of nuclear progression is possible by a transient inhibition of meiotic resumption during the first 20-22 h of IVM either by (1) the elevation of intracellular levels of cyclic adenosine monophosphate (cAMP) or (2) suppressing the activity of the metaphase promoting factor (MPF). A protocol for each approach is described.
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Affiliation(s)
- Tamas Somfai
- National Agriculture and Food Research Organization, National Institute of Livestock and Grassland Science, 305-0901, Ibaraki, Japan.
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NAKAGAWA S, MAEDOMARI N, KIKUCHI K, NAGAI T, MIYANO T, FULKA JR J, MANABE N. Vitrification of Fully Grown and Growing Porcine Oocytes Using Germinal Vesicle Transfer. J Reprod Dev 2011; 57:335-41. [DOI: 10.1262/jrd.10-177h] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Shoma NAKAGAWA
- Animal Resource Science Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo
- Institute of Animal Science
| | - Naoki MAEDOMARI
- Laboratory of Animal Reproduction, School of Veterinary Medicine, Azabu University
| | - Kazuhiro KIKUCHI
- Division of Animal Sciences, National Institute of Agrobiological Sciences
| | - Takashi NAGAI
- National Institute of Livestock and Grassland Science
| | - Takashi MIYANO
- Graduate School of Agricultural Science, Kobe University
| | | | - Noboru MANABE
- Animal Resource Science Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo
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Biswas D, Jeon YB, Kim GH, Jeung EB, Hyun SH. Effect of Vascular Endothelial Growth Factor on in vitro Porcine Oocyte Maturation and Subsequent Developmental Competence after Parthenogenesis. ACTA ACUST UNITED AC 2010. [DOI: 10.3923/javaa.2010.2924.2931] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Córdova B, Morató R, Izquierdo D, Paramio T, Mogas T. Effect of the addition of insulin-transferrin-selenium and/or L-ascorbic acid to the in vitro maturation of prepubertal bovine oocytes on cytoplasmic maturation and embryo development. Theriogenology 2010; 74:1341-8. [DOI: 10.1016/j.theriogenology.2010.06.003] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2010] [Revised: 05/14/2010] [Accepted: 06/02/2010] [Indexed: 11/28/2022]
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Xue K, Song J, Wei H, Chen L, Ma Y, Liu S, Li Y, Dai Y, Zhao Y, Li N. Synchronous behaviors of CBP and acetylations of lysine 18 and lysine 23 on histone H3 during porcine oocyte first meiotic division. Mol Reprod Dev 2010; 77:605-14. [PMID: 20575085 DOI: 10.1002/mrd.21190] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
As a transcriptional coactivator and acetyltransferase, CREB-binding protein (CBP) is widely characterized due to its functions in cell proliferation and development. However, the activities of CBP in oocyte meiosis are not completely clear. Here we showed that the localization and expression of CBP changed regularly with the progression of porcine oocyte meiosis. The emergence of CBP in chromosomal domains is temporally coincident with the establishments of acetylated lysine 18 (AcH3/K18), lysine 23 (AcH3/K23) and dimethylated arginine 17 (dime-H3/R17) of histone H3 at meiotic stages from germinal vesicle breakdown (GVBD) to metaphase I (MI). Both CBP expression and these three histone modifications persisted to telophase I (TI). When trichostatin A (TSA) was used to enhance histone acetylations in porcine oocytes, we found that hyperacetylations of H3K18 and H3K23 occurred at meiotic stage from GVBD to TI, together with advanced and enhanced expression of CBP in the nucleus. In addition, disturbance of CBP activity by treatment with 2-Naphthol-AS-Ephosphate (KG-501, a drug targeting the KIX domain of CBP that disrupts the formation of CBP functional complex) led to synchronous decreases of CBP expression, AcH3/K18 and AcH3/K23 in chromosomal domains during oocyte meiosis. Therefore, these results indicate that the synchronous changes of CBP expression, AcH3/K18 and AcH3/K23 occur during porcine oocyte meiosis.
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Affiliation(s)
- Kai Xue
- State Key Laboratories for AgroBiotechnology, College of Biological Sciences, China Agricultural University, Beijing 100193, PR China
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Faustini M, Bucco M, Galeati G, Spinaci M, Villani S, Chlapanidas T, Ghidoni I, Vigo D, Torre ML. Boar Sperm Encapsulation ReducesIn VitroPolyspermy. Reprod Domest Anim 2010; 45:359-62. [DOI: 10.1111/j.1439-0531.2008.01213.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Marco-Jiménez F, Llobat L, Vicente JS. Effects of lanosterol on in vitro maturation of porcine oocytes. Anim Reprod Sci 2010; 117:288-94. [DOI: 10.1016/j.anireprosci.2009.04.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2008] [Revised: 03/12/2009] [Accepted: 04/27/2009] [Indexed: 10/20/2022]
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50
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Stricker SA. Interactions between mitogen-activated protein kinase and protein kinase C signaling during oocyte maturation and fertilization in a marine worm. Mol Reprod Dev 2009; 76:708-21. [DOI: 10.1002/mrd.21032] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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