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Feng Y, Zhao X, Ruan Z, Li Z, Mo H, Lu F, Shi D. Zinc improves the developmental ability of bovine in vitro fertilization embryos through its antioxidative action. Theriogenology 2024; 221:47-58. [PMID: 38554613 DOI: 10.1016/j.theriogenology.2024.03.013] [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: 12/23/2023] [Revised: 03/18/2024] [Accepted: 03/22/2024] [Indexed: 04/02/2024]
Abstract
Zinc, an essential trace mineral, exerts a pivotal influence in various biological processes. Through zinc concentration analysis, we found that the zinc concentration in the bovine embryo in vitro culture (IVC) medium was significantly lower than that in bovine follicular fluid. Therefore, this study explored the impact of zinc sulfate on IVC bovine embryo development and investigated the underlying mechanism. The results revealed a significant decline in zygote cleavage and blastocyst development rates when zinc deficiency was induced using zinc chelator N, N, N', N'-Tetrakis (2-pyridylmethyl) ethylenediamine (TPEN) in culture medium during embryo in vitro culture. The influence of zinc-deficiency was time-dependent. Conversely, supplementing 0.8 μg/mL zinc sulfate to culture medium (CM) increased the cleavage and blastocyst formation rate significantly. Moreover, this supplementation reduced reactive oxygen species (ROS) levels, elevated the glutathione (GSH) levels in blastocysts, upregulated the mRNA expression of antioxidase-related genes, and activated the Nrf2-Keap1-ARE signaling pathways. Furthermore, 0.8 μg/mL zinc sulfate enhanced mitochondrial membrane potential, maintained DNA stability, and enhanced the quality of bovine (in vitro fertilization) IVF blastocysts. In conclusion, the addition of 0.8 μg/mL zinc sulfate to CM could enhance the antioxidant capacity, activates the Nrf2-Keap1-ARE signaling pathways, augment mitochondrial membrane potential, and stabilizes DNA, ultimately improving blastocyst quality and in vitro bovine embryo development.
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Affiliation(s)
- Yun Feng
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Guangxi University, Nanning, 530005, China
| | - Xin Zhao
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Guangxi University, Nanning, 530005, China; Reproductive Medicine Center, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003, China
| | - Ziyun Ruan
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Guangxi University, Nanning, 530005, China
| | - Zhengda Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Guangxi University, Nanning, 530005, China
| | - Hongfang Mo
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Guangxi University, Nanning, 530005, China
| | - Fenghua Lu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Guangxi University, Nanning, 530005, China.
| | - Deshun Shi
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Guangxi University, Nanning, 530005, China.
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Moura MT. Cloning by SCNT: Integrating Technical and Biology-Driven Advances. Methods Mol Biol 2023; 2647:1-35. [PMID: 37041327 DOI: 10.1007/978-1-0716-3064-8_1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/13/2023]
Abstract
Somatic cell nuclear transfer (SCNT) into enucleated oocytes initiates nuclear reprogramming of lineage-committed cells to totipotency. Pioneer SCNT work culminated with cloned amphibians from tadpoles, while technical and biology-driven advances led to cloned mammals from adult animals. Cloning technology has been addressing fundamental questions in biology, propagating desired genomes, and contributing to the generation of transgenic animals or patient-specific stem cells. Nonetheless, SCNT remains technically complex and cloning efficiency relatively low. Genome-wide technologies revealed barriers to nuclear reprogramming, such as persistent epigenetic marks of somatic origin and reprogramming resistant regions of the genome. To decipher the rare reprogramming events that are compatible with full-term cloned development, it will likely require technical advances for large-scale production of SCNT embryos alongside extensive profiling by single-cell multi-omics. Altogether, cloning by SCNT remains a versatile technology, while further advances should continuously refresh the excitement of its applications.
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Affiliation(s)
- Marcelo Tigre Moura
- Chemical Biology Graduate Program, Federal University of São Paulo - UNIFESP, Campus Diadema, Diadema - SP, Brazil
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3
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Yu T, Meng R, Song W, Sun H, An Q, Zhang C, Zhang Y, Su J. ZFP57 regulates DNA methylation of imprinted genes to facilitate embryonic development of somatic cell nuclear transfer embryos in Holstein cows. J Dairy Sci 2022; 106:769-782. [DOI: 10.3168/jds.2022-22427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Accepted: 08/17/2022] [Indexed: 11/17/2022]
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4
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Effect of ACY-1215 on cytoskeletal remodeling and histone acetylation in bovine somatic cell nuclear transfer embryos. Theriogenology 2022; 183:98-107. [DOI: 10.1016/j.theriogenology.2022.02.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 01/10/2022] [Accepted: 02/18/2022] [Indexed: 11/23/2022]
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5
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Sharma AK, Sah S, Singla SK, Chauhan MS, Manik RS, Palta P. Exposure to Pulsed Electromagnetic Fields Improves the Developmental Competence and Quality of Somatic Cell Nuclear Transfer Buffalo ( Bubalus bubalis) Embryos Produced Using Fibroblast Cells and Alters Their Epigenetic Status and Gene Expression. Cell Reprogram 2021; 23:304-315. [PMID: 34597162 DOI: 10.1089/cell.2021.0028] [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] [Indexed: 12/31/2022] Open
Abstract
We examined the effects of treatment with pulsed electromagnetic fields (PEMFs) on cumulus cells and buffalo somatic cell nuclear transfer (SCNT) embryos. PEMF treatment (30 μT for 3 hours) of cumulus cells increased (p < 0.05) the relative cell viability and cell proliferation and the expression level of OCT4, NANOG, SOX2, P53, CCNB1, and GPX, but decreased (p < 0.05) that of DNMT1, DNMT3a, GSK3b, and BAX, whereas the expression level of DNMT3b, GLUT1, BCL2, CASPASE3, SOD1, and CATALASE was not affected. PEMF treatment of SCNT embryos at the beginning of in vitro culture increased (p < 0.05) the blastocyst rate (51.4% ± 1.36% vs. 42.8% ± 1.29%) and decreased (p < 0.01) the apoptotic index to the level in in vitro fertilization blastocysts, but did not significantly alter the total cell number and the inner cell mass:trophectoderm cell number ratio of blastocysts compared to the controls. PEMF treatment increased the expression level of NANOG, SOX2, CDX2, GLUT1, P53, and BCL2 and decreased that of BAX, CASPASE3, GSK3b, and HSP70, but not OCT4, DNMT1, DNMT3a, DNMT3b, HDAC1, and CCNB1 in blastocysts. It increased (p < 0.001) the global level of H3K27me3 but not H3K18ac. These results suggest that PEMF treatment of SCNT embryos improves their developmental competence, reduces the level of apoptosis, and alters the expression level of several important genes related to pluripotency, apoptosis, metabolism, and stress.
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Affiliation(s)
- Aditya Kumar Sharma
- Animal Biotechnology Centre, ICAR-National Dairy Research Institute, Karnal, India
| | - Shrutika Sah
- Animal Biotechnology Centre, ICAR-National Dairy Research Institute, Karnal, India
| | - Suresh Kumar Singla
- Animal Biotechnology Centre, ICAR-National Dairy Research Institute, Karnal, India
| | | | - Radhey Shyam Manik
- Animal Biotechnology Centre, ICAR-National Dairy Research Institute, Karnal, India
| | - Prabhat Palta
- Animal Biotechnology Centre, ICAR-National Dairy Research Institute, Karnal, India.,Embryo Biotechnology Laboratory, Animal Biotechnology Centre, ICAR-National Dairy Research Institute, Karnal, India
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6
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Xu L, Song SH, Idrees M, Mesalam A, Joo MD, Sidrat T, Wei Y, Lee KL, Lu W, Kong IK. Effects of Donor Cell Types on the Development of Bovine Embryos Using Cytoplasm Injection Cloning Technology. Int J Mol Sci 2021; 22:5841. [PMID: 34072531 PMCID: PMC8197982 DOI: 10.3390/ijms22115841] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/20/2021] [Accepted: 05/26/2021] [Indexed: 12/13/2022] Open
Abstract
Cytoplasm injection cloning technology (CICT) is an efficient technique for evaluating the developmental potential of cloned embryos. In this study, we investigated the effects of donor cell type on the developmental potential and quality of cloned bovine embryos. Adult fibroblasts (AFs) and embryonic cells (ECs) were used as donor cells to clone bovine embryos using CICT. We initially used AF cells to develop cloned embryos and then cultured the cloned day-8 blastocysts for 10 days to obtain ECs as donor cells for second embryo cloning. We found that the bovine blastocysts cloned using AF cells had significantly reduced developmental rates, embryo quality, and ratios of inner cell mass (ICM) to the total number of cells compared to those using ECs as donor cells. Furthermore, there were significant differences in the DNA methyltransferase-, histone deacetylation-, apoptosis-, and development-related genes at the blastocyst stage in embryos cloned from AFs compared to those in embryos cloned from ECs. Our results suggest that using ECs as donor cells for nuclear transfer enhances the quantity and quality of cloned embryos. However, further investigation is required in terms of determining pregnancy rates and developing cloned embryos from different donor cell types.
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Affiliation(s)
- Lianguang Xu
- Division of Applied Life Science (BK21 Four), Department of Animal Science, Gyeongsang National University, Jinju 52828, Korea; (L.X.); (M.I.); (M.-D.J.); (T.S.); (Y.W.)
| | - Seok-Hwan Song
- The King Kong Corp. Ltd., Gyeongsang National University, Jinju 52828, Korea; (S.-H.S.); (K.-L.L.)
| | - Muhammad Idrees
- Division of Applied Life Science (BK21 Four), Department of Animal Science, Gyeongsang National University, Jinju 52828, Korea; (L.X.); (M.I.); (M.-D.J.); (T.S.); (Y.W.)
- Institute of Agriculture and Life Science, Gyeongsang National University, Jinju 52828, Korea
| | - Ayman Mesalam
- Department of Theriogenology, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44519, Egypt;
| | - Myeong-Don Joo
- Division of Applied Life Science (BK21 Four), Department of Animal Science, Gyeongsang National University, Jinju 52828, Korea; (L.X.); (M.I.); (M.-D.J.); (T.S.); (Y.W.)
| | - Tabinda Sidrat
- Division of Applied Life Science (BK21 Four), Department of Animal Science, Gyeongsang National University, Jinju 52828, Korea; (L.X.); (M.I.); (M.-D.J.); (T.S.); (Y.W.)
| | - Yiran Wei
- Division of Applied Life Science (BK21 Four), Department of Animal Science, Gyeongsang National University, Jinju 52828, Korea; (L.X.); (M.I.); (M.-D.J.); (T.S.); (Y.W.)
| | - Kyeong-Lim Lee
- The King Kong Corp. Ltd., Gyeongsang National University, Jinju 52828, Korea; (S.-H.S.); (K.-L.L.)
| | - Wenfa Lu
- Division of Animal Reproduction and Breeding, Department of Animal Science, Jilin Agricultural University, Changchun 130118, China;
| | - Il-Keun Kong
- Division of Applied Life Science (BK21 Four), Department of Animal Science, Gyeongsang National University, Jinju 52828, Korea; (L.X.); (M.I.); (M.-D.J.); (T.S.); (Y.W.)
- The King Kong Corp. Ltd., Gyeongsang National University, Jinju 52828, Korea; (S.-H.S.); (K.-L.L.)
- Institute of Agriculture and Life Science, Gyeongsang National University, Jinju 52828, Korea
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7
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Abstract
Somatic cell nuclear transfer (SCNT) is a powerful technique, although challenging, to study reprograming into the totipotent state of differentiated nuclei in mammals. This procedure was initially applied in farm animals, then rodents, and more recently in primates. Nuclear transfer of embryonic stem cells is known to be more efficient, but many types of somatic cells have now been successfully reprogramed with this procedure. Moreover, SCNT reprograming is more effective on a per cell basis than induced Pluripotent Stem Cells (iPSC) and provides interesting clues regarding the underlying processes. In this chapter, we describe the protocol of nuclear transfer in mouse that combines cell cycle synchronization of the donor cells, enucleation of metaphase II oocyte and Piezo-driven injection of a donor cell nucleus followed by activation of the reconstructed embryos and nonsurgical transfer into pseudo-pregnant mice. Moreover, this protocol includes two facultative steps to erase the epigenetic "memory" of the donor cells and improve chromatin remodeling by histones modifications targeting.
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Affiliation(s)
- Vincent Brochard
- Université Paris-Saclay, INRAE, ENVA, BREED U1198, Jouy-en-Josas, France
| | - Nathalie Beaujean
- Université Paris-Saclay, INRAE, ENVA, BREED U1198, Jouy-en-Josas, France. .,Univ Lyon, Université Lyon 1, Inserm, INRAE, Stem Cell and Brain Research Institute U1208, USC 1361, Bron, France.
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8
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Sah S, Sharma AK, Singla SK, Singh MK, Chauhan MS, Manik RS, Palta P. Effects of treatment with a microRNA mimic or inhibitor on the developmental competence, quality, epigenetic status and gene expression of buffalo (Bubalus bubalis) somatic cell nuclear transfer embryos. Reprod Fertil Dev 2021; 32:508-521. [PMID: 31959280 DOI: 10.1071/rd19084] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Accepted: 08/17/2019] [Indexed: 01/04/2023] Open
Abstract
Expression levels of 13 microRNAs (miRNAs) were compared between buffalo blastocysts produced by somatic cell nuclear transfer through hand-made cloning and IVF to improve cloning efficiency. Expression of miR-22, miR-145, miR-374a and miR-30c was higher, whereas that of miR-29b, miR-101, miR-302b, miR-34a, miR-21 and miR-25 was lower, in nuclear transferred (NT) than IVF embryos; the expression of miR-200b, miR-26a and miR-128 was similar between the two groups. Based on these, miR-145, which is involved in the regulation of pluripotency, was selected for further investigation of NT embryos. miR-145 expression was lowest at the 2-cell stage, increased through the 4-cell stage and was highest at the 8-cell or morula stage in a pattern that was similar between NT and IVF embryos. miR-145 expression was higher in NT than IVF embryos at all stages examined. Treatment of reconstructed embryos 1h after electrofusion with an inhibitor of miR-145 for 1h decreased the apoptotic index and increased the blastocyst rate, total cell number, ratio of cells in the inner cell mass to trophectoderm, global levels of acetylation of histone 3 at lysine 18 and expression of Krueppel-like factor 4 (KLF4), octamer-binding transcription factor 4 (OCT4) and SRY (sex determining region Y)-box 2 (SOX2) in blastocysts. Treatment with an miR-145 mimic had the opposite effects. In conclusion, treatment of NT embryos with an miR-145 inhibitor improves the developmental competence and quality, and increases histone acetylation and expression of pluripotency-related genes.
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Affiliation(s)
- S Sah
- Embryo Biotechnology Laboratory, Animal Biotechnology Centre, Indian Council of Agricultural Research-National Dairy Research Institute, GT Road, Karnal, Haryana, 132001 India
| | - A K Sharma
- Embryo Biotechnology Laboratory, Animal Biotechnology Centre, Indian Council of Agricultural Research-National Dairy Research Institute, GT Road, Karnal, Haryana, 132001 India
| | - S K Singla
- Embryo Biotechnology Laboratory, Animal Biotechnology Centre, Indian Council of Agricultural Research-National Dairy Research Institute, GT Road, Karnal, Haryana, 132001 India
| | - M K Singh
- Embryo Biotechnology Laboratory, Animal Biotechnology Centre, Indian Council of Agricultural Research-National Dairy Research Institute, GT Road, Karnal, Haryana, 132001 India
| | - M S Chauhan
- Embryo Biotechnology Laboratory, Animal Biotechnology Centre, Indian Council of Agricultural Research-National Dairy Research Institute, GT Road, Karnal, Haryana, 132001 India
| | - R S Manik
- Embryo Biotechnology Laboratory, Animal Biotechnology Centre, Indian Council of Agricultural Research-National Dairy Research Institute, GT Road, Karnal, Haryana, 132001 India
| | - P Palta
- Embryo Biotechnology Laboratory, Animal Biotechnology Centre, Indian Council of Agricultural Research-National Dairy Research Institute, GT Road, Karnal, Haryana, 132001 India; and Corresponding author.
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9
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Praxedes ÉA, Bressan FF, Fernandes Pereira A. A Comparative Approach of Cellular Reprogramming in the Rodentia Order. Cell Reprogram 2020; 22:227-235. [PMID: 32780598 DOI: 10.1089/cell.2020.0024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Cellular reprogramming mainly involves induction of reactivation of genes responsible for nuclear plasticity, a process that can be performed in vitro through production of cloned embryos by somatic cell nuclear transfer or by induction of cells into the pluripotent state through exogenous transcription factor expression. While these techniques are already well known and utilized in mice and rats, their application in other rodent species would be greatly beneficial, especially for conservation purposes. Within the diverse Rodentia order, wild species stand out as they play an important role in balancing the ecosystem by facilitating seed diversion, soil aeration, and consequently, reforestation. Many of these species are currently approaching extinction, and application of techniques, such as nuclear reprogramming, aimed at species conservation and multiplication and to produce stem cells is of interest. Thus, in this review, we aimed to present the evolution and success of nuclear reprogramming, mainly highlighting its potential application for the conservation of wild rodents.
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Affiliation(s)
- Érika Almeida Praxedes
- Laboratory of Animal Biotechnology, Federal Rural University of the Semi-Arid Region, Mossoró, Brazil
| | - Fabiana Fernandes Bressan
- Department of Veterinary Medicine, Faculty of Animal Science and Food Engineering, University of São Paulo, Pirassununga, Brazil
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Khan I, Mesalam A, Song SH, Kong IK. Supplementation of insulin-transferrin-sodium selenite in culture medium improves the hypothermic storage of bovine embryos produced in vitro. Theriogenology 2020; 152:147-155. [PMID: 32413800 DOI: 10.1016/j.theriogenology.2020.04.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 04/20/2020] [Accepted: 04/26/2020] [Indexed: 10/24/2022]
Abstract
Hypothermic storage of gametes and embryos at 4 °C can be used as an alternative to cryopreservation, but hypothermic preservation can maintain embryo viability for a short duration only. This study investigated the effect of insulin-transferrin-sodium selenite (ITS) in embryo culture medium on hypothermic storage of bovine embryos at 4 °C. Day 7 bovine embryos were subjected to hypothermic storage in tissue culture medium 199 supplemented with 50% fetal bovine serum and 25 mM HEPES for different time durations. After recovery, the embryos were assessed for survival and hatching rate and gene and protein expression levels. Supplementation of embryo culture medium with ITS significantly increased (P < 0.05) the survival and hatching ability of blastocysts stored at 4 °C for 72 h compared to the control group (100% and 76.3% vs 68.5% and 40.5%, respectively). Furthermore, the beneficial effects of ITS on embryos were associated with greater (P < 0.05) total cell number per blastocyst and lesser apoptotic cells number. Moreover, embryos cultured in ITS had lower intracellular lipid content. The protein expression of sirt1 was greater (P < 0.05) in the ITS group, however, caspase3 protein expression was significantly lesser (P < 0.05) in the ITS group. Quantitative reverse transcription PCR indicated that the mRNA levels of SIRT1 and HSP70 were (P < 0.05) increased upon culture with ITS; however, the mRNA levels of the pro-apoptotic genes BAX and CASP3 were reduced (P < 0.05). Taken together, these data suggest that supplementation of embryo culture medium with ITS improves in vitro bovine embryo quality and survival following hypothermic storage.
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Affiliation(s)
- Imran Khan
- Department of Animal Science, Division of Applied Life Science (BK21 Plus), Gyeongsang National University, Jinju, 52828, Gyeongnam Province, Republic of Korea; Department of Chemistry, Bacha Khan University, Charsadda, Khyber Pakhtunkhwa, 24420, Pakistan
| | - Ayman Mesalam
- Department of Theriogenology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, 44519, Egypt
| | - Seok-Hwan Song
- Department of Animal Science, Division of Applied Life Science (BK21 Plus), Gyeongsang National University, Jinju, 52828, Gyeongnam Province, Republic of Korea; The King Kong Corp. Ltd., Gyeongsang National University, Jinju, 52828, Gyeongnam Province, Republic of Korea
| | - Il-Keun Kong
- Department of Animal Science, Division of Applied Life Science (BK21 Plus), Gyeongsang National University, Jinju, 52828, Gyeongnam Province, Republic of Korea; Institute of Agriculture and Life Science, Gyeongsang National University, Jinju, 52828, Gyeongnam Province, Republic of Korea; The King Kong Corp. Ltd., Gyeongsang National University, Jinju, 52828, Gyeongnam Province, Republic of Korea.
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11
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Deng T, Xie J, Ge H, Liu Q, Song X, Hu L, Meng L, Zhang C. Tauroursodeoxycholic acid (TUDCA) enhanced intracytoplasmic sperm injection (ICSI) embryo developmental competence by ameliorating endoplasmic reticulum (ER) stress and inhibiting apoptosis. J Assist Reprod Genet 2019; 37:119-126. [PMID: 31802346 DOI: 10.1007/s10815-019-01627-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2019] [Accepted: 11/01/2019] [Indexed: 01/16/2023] Open
Abstract
PURPOSE The objective of this study was to examine the effect of tauroursodeoxycholic acid (TUDCA) on intracytoplasmic sperm injection (ICSI) embryos by evaluating endoplasmic reticulum (ER) stress, apoptosis, and embryo developmental competence in vitro and in vivo. METHODS ER stress-associated genes and apoptosis-associated genes were measured and apoptosis index was analyzed. Embryo developmental competence was assessed in vitro and in vivo via the inner cell mass (ICM)/trophectoderm (TE) index, pregnancy and implantation rates, and birth rate. RESULTS The relative mRNA and protein expression of binding immunoglobulin protein (BIP) was significantly higher in the ICSI embryo group without TUDCA treatment (ICSI-C) than in the in vitro fertilization (IVF) group and in the ICSI embryo group with TUDCA treatment (200 μM) (ICSI-T), while TUDCA ameliorated ER stress in ICSI embryos. Embryos in the ICSI-C group showed a higher apoptosis index than those in the IVF group and ICSI-T group, and there was no significant difference between the IVF group and ICSI-T group. TUDCA can significantly improve ICSI embryo developmental competence in vitro and in vivo based on the ICM/TE index, pregnancy and implantation rates, and birth rate. CONCLUSION ICSI embryos manifested high ER stress and high apoptosis, while TUDCA ameliorated ER stress and reduced apoptosis in ICSI embryos. TUDCA can significantly improve the developmental competence of ICSI embryos in vitro and in vivo. This study provides a new idea for improving the efficiency of ICSI, and it will also have a positive effect on the development of assisted reproduction technologies for humans and other animals.
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Affiliation(s)
- Tengfei Deng
- Reproductive Medical Center, Henan Provincial People's Hospital, 7 Weiwu Rd, Zhengzhou City, 450003, Henan, China.,Reproductive Medical Center, People's Hospital of Zhengzhou University, 7 Weiwu Rd, Zhengzhou City, 450003, Henan, China.,Reproductive Medical Center, Henan Provincial People's Hospital, School of Clinical Medicine, Henan University, 7 Weiwu Rd, Zhengzhou City, 450003, Henan, China
| | - Juanke Xie
- Reproductive Medical Center, Henan Provincial People's Hospital, 7 Weiwu Rd, Zhengzhou City, 450003, Henan, China.,Reproductive Medical Center, People's Hospital of Zhengzhou University, 7 Weiwu Rd, Zhengzhou City, 450003, Henan, China.,Reproductive Medical Center, Henan Provincial People's Hospital, School of Clinical Medicine, Henan University, 7 Weiwu Rd, Zhengzhou City, 450003, Henan, China
| | - Hengtao Ge
- Reproductive Medical Center, Henan Provincial People's Hospital, 7 Weiwu Rd, Zhengzhou City, 450003, Henan, China.,Reproductive Medical Center, People's Hospital of Zhengzhou University, 7 Weiwu Rd, Zhengzhou City, 450003, Henan, China.,Reproductive Medical Center, Henan Provincial People's Hospital, School of Clinical Medicine, Henan University, 7 Weiwu Rd, Zhengzhou City, 450003, Henan, China
| | - Qi Liu
- Reproductive Medical Center, Henan Provincial People's Hospital, 7 Weiwu Rd, Zhengzhou City, 450003, Henan, China.,Reproductive Medical Center, People's Hospital of Zhengzhou University, 7 Weiwu Rd, Zhengzhou City, 450003, Henan, China.,Reproductive Medical Center, Henan Provincial People's Hospital, School of Clinical Medicine, Henan University, 7 Weiwu Rd, Zhengzhou City, 450003, Henan, China
| | - Xiaobing Song
- Reproductive Medical Center, Henan Provincial People's Hospital, 7 Weiwu Rd, Zhengzhou City, 450003, Henan, China.,Reproductive Medical Center, People's Hospital of Zhengzhou University, 7 Weiwu Rd, Zhengzhou City, 450003, Henan, China.,Reproductive Medical Center, Henan Provincial People's Hospital, School of Clinical Medicine, Henan University, 7 Weiwu Rd, Zhengzhou City, 450003, Henan, China
| | - Lin Hu
- Reproductive Medical Center, Henan Provincial People's Hospital, 7 Weiwu Rd, Zhengzhou City, 450003, Henan, China.,Reproductive Medical Center, People's Hospital of Zhengzhou University, 7 Weiwu Rd, Zhengzhou City, 450003, Henan, China.,Reproductive Medical Center, Henan Provincial People's Hospital, School of Clinical Medicine, Henan University, 7 Weiwu Rd, Zhengzhou City, 450003, Henan, China
| | - Li Meng
- Reproductive Medical Center, Henan Provincial People's Hospital, 7 Weiwu Rd, Zhengzhou City, 450003, Henan, China.,Reproductive Medical Center, People's Hospital of Zhengzhou University, 7 Weiwu Rd, Zhengzhou City, 450003, Henan, China.,Reproductive Medical Center, Henan Provincial People's Hospital, School of Clinical Medicine, Henan University, 7 Weiwu Rd, Zhengzhou City, 450003, Henan, China.,LA IVF Clinic, Los Angeles, CA, USA
| | - Cuilian Zhang
- Reproductive Medical Center, Henan Provincial People's Hospital, 7 Weiwu Rd, Zhengzhou City, 450003, Henan, China. .,Reproductive Medical Center, People's Hospital of Zhengzhou University, 7 Weiwu Rd, Zhengzhou City, 450003, Henan, China. .,Reproductive Medical Center, Henan Provincial People's Hospital, School of Clinical Medicine, Henan University, 7 Weiwu Rd, Zhengzhou City, 450003, Henan, China.
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12
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Mesalam A, Lee KL, Khan I, Chowdhury MMR, Zhang S, Song SH, Joo MD, Lee JH, Jin JI, Kong IK. A combination of bovine serum albumin with insulin-transferrin-sodium selenite and/or epidermal growth factor as alternatives to fetal bovine serum in culture medium improves bovine embryo quality and trophoblast invasion by induction of matrix metalloproteinases. Reprod Fertil Dev 2019; 31:333-346. [PMID: 30086822 DOI: 10.1071/rd18162] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 07/07/2018] [Indexed: 12/17/2022] Open
Abstract
This study investigated the use of bovine serum albumin (BSA) plus insulin-transferrin-sodium selenite (ITS) and/or epidermal growth factor (EGF) as alternatives to fetal bovine serum (FBS) in embryo culture medium. The developmental ability and quality of bovine embryos were determined by assessing their cell number, lipid content, gene expression and cryotolerance, as well as the invasion ability of trophoblasts. The percentage of embryos that underwent cleavage and formed a blastocyst was higher (P<0.01) in medium containing ITS plus EGF and BSA than in medium containing FBS. Culture with ITS plus EGF and BSA also increased the hatching ability of blastocysts and the total cell number per blastocyst. Furthermore, the beneficial effects of BAS plus ITS and EGF on embryos were associated with a significantly reduced intracellular lipid content, which increased their cryotolerance. An invasion assay confirmed that culture with ITS plus EGF and BSA significantly improved the invasion ability of trophoblasts. Real-time quantitative polymerase chain reaction analysis showed that the mRNA levels of matrix metalloproteinase-2 (MMP2) and MMP9, acyl-CoA synthetase long-chain family member 3, acyl-coenzyme A dehydrogenase long-chain and hydroxymethylglutaryl-CoA reductase significantly increased upon culture with ITS plus EGF and BSA. Moreover, protein expression levels of matrix metalloproteinase-2 and -9 increased (P<0.01) in medium supplemented with ITS plus EGF and BSA compared with medium supplemented with FBS. Taken together, these data suggest that supplementation of medium with ITS plus EGF and BSA improves invitro bovine embryo production, cryotolerance and invasion ability of trophoblasts.
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Affiliation(s)
- Ayman Mesalam
- Department of Animal Science, Division of Applied Life Science (BK21 Plus), Gyeongsang National University, Jinju 52828, Gyeongnam Province, Republic of Korea
| | - Kyeong-Lim Lee
- Department of Animal Science, Division of Applied Life Science (BK21 Plus), Gyeongsang National University, Jinju 52828, Gyeongnam Province, Republic of Korea
| | - Imran Khan
- Department of Animal Science, Division of Applied Life Science (BK21 Plus), Gyeongsang National University, Jinju 52828, Gyeongnam Province, Republic of Korea
| | - M M R Chowdhury
- Department of Animal Science, Division of Applied Life Science (BK21 Plus), Gyeongsang National University, Jinju 52828, Gyeongnam Province, Republic of Korea
| | - Shimin Zhang
- Department of Animal Science, Division of Applied Life Science (BK21 Plus), Gyeongsang National University, Jinju 52828, Gyeongnam Province, Republic of Korea
| | - Seok-Hwan Song
- Department of Animal Science, Division of Applied Life Science (BK21 Plus), Gyeongsang National University, Jinju 52828, Gyeongnam Province, Republic of Korea
| | - Myeong-Don Joo
- Department of Animal Science, Division of Applied Life Science (BK21 Plus), Gyeongsang National University, Jinju 52828, Gyeongnam Province, Republic of Korea
| | - Jae-Hoon Lee
- Department of Veterinary Science, College of Veterinary Science, Gyeongsang National University, Jinju 52828, Gyeongnam Province, Republic of Korea
| | - Jong-In Jin
- Department of Animal Science, Division of Applied Life Science (BK21 Plus), Gyeongsang National University, Jinju 52828, Gyeongnam Province, Republic of Korea
| | - Il-Keun Kong
- Department of Animal Science, Division of Applied Life Science (BK21 Plus), Gyeongsang National University, Jinju 52828, Gyeongnam Province, Republic of Korea
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Raja AK, Sahare AA, Jyotsana B, Priya D, Palta P, Chauhan MS, Manik RS, Singla SK. Reducing the cytoplasmic volume during hand-made cloning adversely affects the developmental competence and quality, and alters relative abundance of mRNA transcripts and epigenetic status of buffalo (Bubalus bubalis) embryos. Anim Reprod Sci 2019; 208:106136. [PMID: 31405474 DOI: 10.1016/j.anireprosci.2019.106136] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 05/09/2019] [Accepted: 07/22/2019] [Indexed: 11/17/2022]
Abstract
Hand-made cloning (HMC) is a method of choice for somatic cell nuclear transfer (SCNT). There is 20% to 50% of cytoplasm lost during manual enucleation of oocytes with HMC. To compensate, two enucleated demicytoplasts, instead of one, are fused with each donor cell, which leads to cytoplasm pooling from two different demicytoplasts. In this study, effects of using one, instead of two demicytoplasts (controls) was examined, for production of embryos using HMC. Use of one demicytoplast decreased blastocyst development (12.7 ± 1.98% compared with 47.6 ± 3.49%, P < 0.001), total cell number (TCN, 167.6 ± 14.66 compared with 335.9 ± 58.96, P < 0.01), apoptotic index (2.11 ± 0.38 compared with 3.43±0.38, P < 0.05) but did not significantly alter inner cell mass:trophectoderm cell number ratio (0.17 ± 0.01 compared with 0.19 ± 0.02) and the global content of H3K9ac and H3K27me3 of blastocysts, compared to controls. There were gene expression alterations in pluripotency- (SOX2 and NANOG but not OCT4), epigenetic- (DNMT1 but not DNMT3a and HDAC1), apoptosis- (CASPASE3 but not BCL-2 and BAX), trophectoderm- (CDX2), development- (G6PD but not GLUT1) and cell cycle check point control-related related genes (P53) compared with controls. Transfer of cloned blastocysts from one demicytoplast (n = 8) to recipients resulted in a live calf birth that after 12 days died whereas, with transfer of control blastocysts (n = 14) there was birth of a healthy calf. In conclusion, use of one, instead of two demicytoplasts for HMC, compromises in vitro developmental competence, and alters expression of several important genes affecting embryo development.
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Affiliation(s)
- A K Raja
- Embryo Biotechnology Laboratory, Animal Biotechnology Centre, National Dairy Research Institute, Karnal 132001, Haryana, India.
| | - A A Sahare
- Embryo Biotechnology Laboratory, Animal Biotechnology Centre, National Dairy Research Institute, Karnal 132001, Haryana, India
| | - B Jyotsana
- Embryo Biotechnology Laboratory, Animal Biotechnology Centre, National Dairy Research Institute, Karnal 132001, Haryana, India
| | - D Priya
- Embryo Biotechnology Laboratory, Animal Biotechnology Centre, National Dairy Research Institute, Karnal 132001, Haryana, India
| | - P Palta
- Embryo Biotechnology Laboratory, Animal Biotechnology Centre, National Dairy Research Institute, Karnal 132001, Haryana, India
| | - M S Chauhan
- Embryo Biotechnology Laboratory, Animal Biotechnology Centre, National Dairy Research Institute, Karnal 132001, Haryana, India
| | - R S Manik
- Embryo Biotechnology Laboratory, Animal Biotechnology Centre, National Dairy Research Institute, Karnal 132001, Haryana, India
| | - S K Singla
- Embryo Biotechnology Laboratory, Animal Biotechnology Centre, National Dairy Research Institute, Karnal 132001, Haryana, India
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Singh S, Shyam S, Sah S, Singh MK, Palta P. Treatment of Buffalo ( Bubalus bubalis) Somatic Cell Nuclear Transfer Embryos with MicroRNA-29b Mimic Improves Their Quality, Reduces DNA Methylation, and Changes Gene Expression Without Affecting Their Developmental Competence. Cell Reprogram 2019; 21:210-219. [PMID: 31199675 DOI: 10.1089/cell.2019.0007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
microRNA-29b (miR-29b) plays an important role in controlling DNA methylation in cells. We investigated its role during early embryonic development in buffalo embryos produced by somatic cell nuclear transfer (SCNT) and in vitro fertilization (IVF). miR-29b expression was highest at the 2-cell stage, decreased (p < 0.001) at the 4-cell stage, and remained low thereafter at the 8-cell, morula, and blastocyst stages, showing a similar pattern in cloned and IVF embryos. Treatment of reconstructed embryos with miR-29b mimic for 1 hour after 1 hour of electrofusion increased (p < 0.05) the total cell number and decreased (p < 0.05) the levels of apoptosis and DNA methylation compared with controls. It also increased (p < 0.05) the ratio of inner cell mass:trophectoderm cell numbers of blastocysts compared with controls to the levels observed in IVF blastocysts. However, the blastocyst rate was not affected by treatment with miR-29b mimic (29.0% ± 2.0% vs. 27.0% ± 2.0% for controls). The treatment decreased (p < 0.001) the expression of epigenetic-related genes, DNMT3A and DNMT3B, but not DNMT1, and increased (p < 0.05) that of pluripotency- (NANOG, OCT4, and SOX2) and development-related genes (FGF4 and GLUT1) in blastocysts compared with controls. Our results suggest that miR-29b mimic treatment of reconstructed embryos improves the quality, reduces the level of apoptosis and DNA methylation, and changes gene expression in SCNT blastocysts without affecting the blastocyst rate.
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Affiliation(s)
- Shikha Singh
- Animal Biotechnology Center, ICAR-National Dairy Research Institute, Karnal, India
| | - Songyukta Shyam
- Animal Biotechnology Center, ICAR-National Dairy Research Institute, Karnal, India
| | - Shrutika Sah
- Animal Biotechnology Center, ICAR-National Dairy Research Institute, Karnal, India
| | - Manoj K Singh
- Animal Biotechnology Center, ICAR-National Dairy Research Institute, Karnal, India
| | - Prabhat Palta
- Animal Biotechnology Center, ICAR-National Dairy Research Institute, Karnal, India
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15
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Mehta P, Kaushik R, Singh KP, Sharma A, Singh MK, Chauhan MS, Palta P, Singla SK, Manik RS. Comparative analysis of buffalo (Bubalus bubalis) non-transgenic and transgenic embryos containing human insulin gene, produced by SCNT. Theriogenology 2019; 135:25-32. [PMID: 31195358 DOI: 10.1016/j.theriogenology.2019.06.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 06/03/2019] [Accepted: 06/04/2019] [Indexed: 12/11/2022]
Abstract
Somatic cell nuclear transfer (SCNT), using transgenic donor cells, is a highly efficient method for producing transgenic embryos. We compared the developmental competence, quality and gene expression of transgenic embryos produced by Hand-made cloning from buffalo fetal fibroblasts (BFFs) containing human insulin gene, with non-transgenic embryos produced from BFFs (Controls). The expression vector (pAcISUBC), constructed by inserting human insulin gene between DNA fragments containing mammary gland-specific buffalo β-lactoglobulin (buBLG) promoter and terminator buBLG 3'UTR regions into pAcGFP-N1 vector, was used for obtaining the 11 kb insert for transfection of BFFs by nucleofection. Presence of the transgene in embryos was confirmed by examining GFP expression by RT-PCR and immunofluorescence. The blastocyst rate was lower (P < 0.05) for transgenic embryos than for controls (35.7 ± 1.8% vs 48.7 ± 2.4%). The apoptotic index was higher (P < 0.05) for transgenic than for control blastocysts which, in turn, was higher (P < 0.05) than for IVF counterparts (6.9 ± 0.9, 3.8 ± 0.5 and 1.8 ± 0.3, respectively). The total cell number was similar for transgenic and non-transgenic blastocysts (143.2 ± 17.0 and 137.2 ± 7.6, respectively). The expression level of pro-apoptotic genes BAX and BID but not that of CASP3 and CASP9, and cell cycle check point control-related gene P53 was higher (P < 0.05), and that of development- (IGF-1R and G6PD) and pluripotency-related gene NANOG was lower (P < 0.05) in transgenic than in control embryos. The expression level of epigenetic-related genes DNMT1, DNMT3a and HDAC1 and pluripotency-related gene OCT4 was similar in the two groups. The expression level of BAX, BID, CASP9, P53, DNMT1 and DNMT3a was higher (P < 0.05) and that of OCT4, NANOG IGF-1R and G6PD was lower (P < 0.05) in cloned transgenic than in IVF blastocysts whereas, that of CASP3 and HDAC1 was similar between the two groups. In conclusion, these results suggest that transgenic embryos produced by SCNT have lower developmental competence and quality, and altered gene expression compared to non-transgenic embryos.
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Affiliation(s)
- P Mehta
- Embryo Biotechnology Laboratory, Animal Biotechnology Centre, ICAR-National Dairy Research Institute, Karnal, 132001, India.
| | - R Kaushik
- Embryo Biotechnology Laboratory, Animal Biotechnology Centre, ICAR-National Dairy Research Institute, Karnal, 132001, India
| | - K P Singh
- Embryo Biotechnology Laboratory, Animal Biotechnology Centre, ICAR-National Dairy Research Institute, Karnal, 132001, India
| | - A Sharma
- Embryo Biotechnology Laboratory, Animal Biotechnology Centre, ICAR-National Dairy Research Institute, Karnal, 132001, India
| | - M K Singh
- Embryo Biotechnology Laboratory, Animal Biotechnology Centre, ICAR-National Dairy Research Institute, Karnal, 132001, India
| | - M S Chauhan
- Embryo Biotechnology Laboratory, Animal Biotechnology Centre, ICAR-National Dairy Research Institute, Karnal, 132001, India
| | - P Palta
- Embryo Biotechnology Laboratory, Animal Biotechnology Centre, ICAR-National Dairy Research Institute, Karnal, 132001, India
| | - S K Singla
- Embryo Biotechnology Laboratory, Animal Biotechnology Centre, ICAR-National Dairy Research Institute, Karnal, 132001, India
| | - R S Manik
- Embryo Biotechnology Laboratory, Animal Biotechnology Centre, ICAR-National Dairy Research Institute, Karnal, 132001, India
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16
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Treatment of buffalo (Bubalus bubalis) SCNT embryos with microRNA-21 mimic improves their quality and alters gene expression but does not affect their developmental competence. Theriogenology 2019; 126:8-16. [DOI: 10.1016/j.theriogenology.2018.11.025] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 11/20/2018] [Accepted: 11/25/2018] [Indexed: 01/15/2023]
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17
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Profile of Prof. Weizhi Ji. SCIENCE CHINA-LIFE SCIENCES 2018; 62:8-11. [PMID: 30570698 DOI: 10.1007/s11427-018-9424-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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18
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Mesalam A, Kong R, Khan I, Chowdhury MMR, Choi BH, Kim SW, Cho KW, Jin JI, Kong IK. Effect of charcoal:dextran stripped fetal bovine serum on in vitro development of bovine embryos. Reprod Biol 2017; 17:312-319. [DOI: 10.1016/j.repbio.2017.09.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Revised: 09/04/2017] [Accepted: 09/05/2017] [Indexed: 12/14/2022]
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19
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Mesalam A, Khan I, Lee KL, Song SH, Chowdhury M, Uddin Z, Park KH, Kong IK. 2-Methoxystypandrone improves in vitro -produced bovine embryo quality through inhibition of IKBKB. Theriogenology 2017; 99:10-20. [DOI: 10.1016/j.theriogenology.2017.05.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Revised: 04/26/2017] [Accepted: 05/13/2017] [Indexed: 10/19/2022]
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20
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PCI-24781 can improve in vitro and in vivo developmental capacity of pig somatic cell nuclear transfer embryos. Biotechnol Lett 2016; 38:1433-41. [PMID: 27271328 DOI: 10.1007/s10529-016-2141-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Accepted: 05/25/2016] [Indexed: 01/24/2023]
Abstract
OBJECTIVE To examine the effect of PCI-24781 (abexinostat) on the blastocyst formation rate in pig somatic cell nuclear transferred (SCNT) embryos and acetylation levels of the histone H3 lysine 9 and histone H4 lysine 12. RESULTS Treatment with 0.5 nM PCI-24781 for 6 h significantly improved the development of cloned embryos, in comparison to the control group (25.3 vs. 10.5 %, P < 0.05). Furthermore, PCI-24781 treatment led to elevated acetylation of H3K9 and H4K12. TUNEL assay and Hoechst 33342 staining revealed that the percentage of apoptotic cells in blastocysts was significantly lower in PCI-24781-treated SCNT embryos than in untreated embryos. Also, PCI-24781-treated embryos were transferred into three surrogate sows, one of whom became pregnant and two fetuses developed. CONCLUSION PCI-24781 improves nuclear reprogramming and the developmental potential of pig SCNT embryos.
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21
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Coagulansin-A has beneficial effects on the development of bovine embryos in vitro via HSP70 induction. Biosci Rep 2016; 36:BSR20150222. [PMID: 26831738 PMCID: PMC4793297 DOI: 10.1042/bsr20150222] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Accepted: 01/25/2016] [Indexed: 11/17/2022] Open
Abstract
Treatment with the steroidal lactone, coagulansin-A, improves bovine oocyte maturation and embryo development in vitro by inducing heat shock protein 70 (HSP70), which reduces the levels of reactive oxygen species (ROS), DNA damage and inflammation. Coagulansin-A (withanolide) is the steroidal lactone obtained from Withania coagulans which belong to Solanaceae family. The present study investigated the effects of coagulansin-A on bovine oocyte maturation and embryo development in vitro. All these oocytes were aspirated from the ovaries obtained from Korean Hanwoo cows at a local abattoir. To determine whether coagulansin-A has beneficial effects on bovine oocyte maturation in vitro, 355 oocytes per group (control and treated) in seven replicates were subjected with different concentrations (1, 2.5, 5, 7.5 and 10 μM) of coagulansin-A. The coagulansin-A was added in the in vitro maturation (IVM) media followed by in vitro fertilization (IVF) and then in vitro culture (IVC). Only treatment with 5 μM coagulansin-A remarkably (P<0.05) improved embryos development (Day 8 blastocyst) having 27.30 and 40.01% for control and coagulansin-A treated groups respectively. Treatment with 5 μM coagulansin-A significantly induced activation of heat shock protein 70 (HSP70) (P<0.05). Immunofluorescence analysis revealed that 5 μM coagulansin-A treatment also significantly inhibited oxidative stress and inflammation during bovine embryo development in vitro by decreasing 8-oxoguanosine (8-OxoG) (P<0.05) and nuclear factor-κB (NF-κB) (P<0.05). The expressions of HSP70 and NF-κB were also conformed through real-time PCR (RT-PCR). Additionally, the terminal deoxynucleotidyl transferase dUTP nick-end labelling (TUNEL) assay confirmed that coagulansin-A treatment significantly improved the embryo quality and reduced bovine embryo DNA damage (P<0.05). The present study provides new information regarding the mechanisms by which coagulansin-A promotes bovine embryo development in vitro.
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22
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Saini M, Selokar NL, Agrawal H, Singla SK, Chauhan MS, Manik RS, Palta P. Treatment of buffalo (Bubalus bubalis) donor cells with trichostatin A and 5-aza-2’-deoxycytidine alters their growth characteristics, gene expression and epigenetic status and improves the in vitro developmental competence, quality and epigenetic status of cloned embryos. Reprod Fertil Dev 2016; 28:824-37. [DOI: 10.1071/rd14176] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2014] [Accepted: 10/08/2014] [Indexed: 01/02/2023] Open
Abstract
We examined the effects of treating buffalo skin fibroblast donor cells with trichostatin A (TSA), a histone deacetylase (HDAC) inhibitor, and 5-aza-2′-deoxycytidine (5azadC), a DNA methyltransferase (DNMT) inhibitor, on the cells and embryos produced by hand-made cloning. Treatment of donor cells with TSA or 5azadC resulted in altered expression levels of the HDAC1, DNMT1, DNMT3a, P53, CASPASE3 and CASPASE9 genes and global levels of acetylation of lysine at position 9 or 14 in histone 3 (H3K9/14ac), acetylation of lysine at position 5 in histone 4 (H4K5ac), acetylation of lysine at position 18 in histone 3 (H3K18ac) and tri-methylation of lysine at position 27 in histone 3 (H3K27me3). Moreover, global levels of DNA methylation and activity of DNMT1 and HDAC1 were decreased, while global acetylation of H3 and H3K9 was significantly increased in comparison to untreated cells. Simultaneous treatment of donor cells with TSA (50 nM) and 5azadC (7.5 nM) resulted in higher in vitro development to the blastocyst stage, reduction of the apoptotic index and the global level of H3K27 me3 and altered expression levels of HDAC1, P53, CASPASE3, CASPASE9 and DNMT3a in cloned blastocysts. Transfer of cloned embryos produced with donor cells treated with TSA led to the birth of a calf that survived for 21 days. These results show that treatment of buffalo donor cells with TSA and 5azadC improved developmental competence and quality of cloned embryos and altered their epigenetic status and gene expression, and that these beneficial effects were mediated by a reduction in DNA and histone methylation and an increase in histone acetylation in donor cells.
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Su J, Wang Y, Xing X, Zhang L, Sun H, Zhang Y. Melatonin significantly improves the developmental competence of bovine somatic cell nuclear transfer embryos. J Pineal Res 2015; 59:455-68. [PMID: 26331949 DOI: 10.1111/jpi.12275] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Accepted: 08/28/2015] [Indexed: 01/08/2023]
Abstract
Somatic cell nuclear transfer (SCNT) is a promising technology, but its application is hampered by its low efficiency. Hence, the majority of SCNT embryos fail to develop to term. In this study, the antioxidant melatonin reduced apoptosis and reactive oxygen species (ROS) in bovine SCNT embryos. It also increased cell number, inner cell mass (ICM) cell numbers, and the ratio of ICM to total cells while improving the development of bovine SCNT embryos in vitro and in vivo. Gene expression analysis showed that melatonin suppressed the expression of the pro-apoptotic genes p53 and Bax and stimulated the expression of the antioxidant genes SOD1 and Gpx4, the anti-apoptotic gene BCL2L1, and the pluripotency-related gene SOX2 in SCNT blastocysts. We also analyzed the epigenetic modifications in bovine in vitro fertilization, melatonin-treated, and untreated SCNT embryos. The global H3K9ac levels of melatonin-treated SCNT embryos at the four-cell stage were higher than those of the untreated SCNT embryos. We conclude that exogenous melatonin affects the expression of genes related to apoptosis, antioxidant function, and development. Moreover, melatonin reduced apoptosis and ROS in bovine SCNT embryos and enhanced blastocyst quality, thereby ultimately improving bovine cloning efficiency.
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Affiliation(s)
- Jianmin Su
- College of Veterinary Medicine, Northwest A&F University, Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, Yangling, Shaanxi Province, China
| | - Yongsheng Wang
- College of Veterinary Medicine, Northwest A&F University, Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, Yangling, Shaanxi Province, China
| | - Xupeng Xing
- College of Veterinary Medicine, Northwest A&F University, Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, Yangling, Shaanxi Province, China
| | - Lei Zhang
- College of Veterinary Medicine, Northwest A&F University, Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, Yangling, Shaanxi Province, China
| | - Hongzheng Sun
- College of Veterinary Medicine, Northwest A&F University, Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, Yangling, Shaanxi Province, China
| | - Yong Zhang
- College of Veterinary Medicine, Northwest A&F University, Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, Yangling, Shaanxi Province, China
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Jyotsana B, Sahare AA, Raja AK, Singh KP, Singla SK, Chauhan MS, Manik RS, Palta P. Handmade Cloned Buffalo (Bubalus bubalis) Embryos Produced from Somatic Cells Isolated from Milk and Ear Skin Differ in Their Developmental Competence, Epigenetic Status, and Gene Expression. Cell Reprogram 2015; 17:393-403. [PMID: 26332294 DOI: 10.1089/cell.2015.0027] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
We compared the cloning efficiency of buffalo embryos produced by handmade cloning (HMC) using ear skin- and milk-derived donor cells. The blastocyst rate was lower (p < 0.05) for milk-derived than that for skin-derived embryos, whereas the total cell number and apoptotic index were similar. The global level of H3K9ac was higher (p < 0.05) in skin- than in milk-derived cells, whereas the level of H3K27me3 was similar in the two groups. The global level of H3K9ac was similar between milk-derived and in vitro-fertilized (IVF) blastocysts, which was higher (p < 0.05) than that in skin-derived blastocysts. The level of H3K27me3 was similar among the three groups. The expression level of IGF-1R and G6PD was higher (p < 0.05) in skin- than in milk-derived cells, whereas DNMT1, DNMT3a, and HDAC1 expression level was similar. In the blastocysts, the expression level of DNMT1, HDAC1, OCT4, and CDX2 was higher (p < 0.05) in skin-derived than that in IVF blastocysts. The expression level of DNMT3a and IGF-1R, was in the order (p < 0.05) skin-derived and IVF > milk-derived blastocysts and that of NANOG was (p < 0.05) IVF-> milk-derived > skin-derived blastocysts. The expression level of all these genes, except NANOG, was lower (p < 0.05) in milk- than in skin-derived or IVF blastocysts. In conclusion, milk-derived cells can be used for producing HMC embryos of quality similar to that of skin-derived embryos, although with a lower blastocyst rate.
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Affiliation(s)
- Basanti Jyotsana
- 1 Animal Biotechnology Section, Central Sheep and Wool Research Institute , Avikanagar-304501 (Rajasthan), India
| | - Amol A Sahare
- 2 Animal Biotechnology Centre, National Dairy Research Institute , Karnal-132001 (Haryana), India
| | - Anuj K Raja
- 2 Animal Biotechnology Centre, National Dairy Research Institute , Karnal-132001 (Haryana), India
| | - Karn P Singh
- 2 Animal Biotechnology Centre, National Dairy Research Institute , Karnal-132001 (Haryana), India
| | - Suresh K Singla
- 2 Animal Biotechnology Centre, National Dairy Research Institute , Karnal-132001 (Haryana), India
| | - Manmohan S Chauhan
- 2 Animal Biotechnology Centre, National Dairy Research Institute , Karnal-132001 (Haryana), India
| | - Radhey S Manik
- 2 Animal Biotechnology Centre, National Dairy Research Institute , Karnal-132001 (Haryana), India
| | - Prabhat Palta
- 2 Animal Biotechnology Centre, National Dairy Research Institute , Karnal-132001 (Haryana), India
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Mohapatra SK, Sandhu A, Neerukattu VS, Singh KP, Selokar NL, Singla SK, Chauhan MS, Manik RS, Palta P. Buffalo embryos produced by handmade cloning from oocytes selected using brilliant cresyl blue staining have better developmental competence and quality and are closer to embryos produced by in vitro fertilization in terms of their epigenetic status and gene expression pattern. Cell Reprogram 2015; 17:141-50. [PMID: 25826727 DOI: 10.1089/cell.2014.0077] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
We compared handmade cloned (HMC) buffalo blastocysts produced from oocytes stained with Brilliant Cresyl Blue (BCB) and classified into those with blue (BCB+) or colorless cytoplasm (BCB-). The blastocyst rate was higher (p<0.001) for BCB+ than for BCB- oocytes (43.41 ± 2.54 vs. 22.74 ± 1.76%). BCB+ blastocysts had inner cell mass (ICM) cell number, ICM-to-trophectoderm ratio, global level of H3K18ac, apoptotic index, and expression level of BCL-XL, but not that of CASPASE-3, similar to that of blastocysts produced through in vitro fertilization (IVF), which was higher (p<0.05) than that of BCB- blastocysts. The global level of H3K9me2, which was similar in BCB+ and BCB- blastocysts, was higher (p<0.01) than that in IVF blastocysts. The expression level of OCT4 and SOX2 was higher (p<0.05) and that of GATA2 was lower (p<0.05) in BCB+ than that in BCB- blastocysts, whereas that of DNMT1, DNMT3a, NANOG, and CDX2 was not significantly different between the two groups. The expression level of DNMT1, OCT4, NANOG, and SOX2 was lower (p<0.05) and that of CDX2 was higher (p<0.05) in BCB+ than in IVF blastocysts. In conclusion, because BCB+ blastocysts have better developmental competence and are closer to IVF blastocysts in terms of quality, epigenetic status, and gene expression than BCB- blastocysts, BCB staining can be used effectively for selection of developmentally competent oocytes for HMC.
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Affiliation(s)
- Sushil K Mohapatra
- Embryo Biotechnology Lab, Animal Biotechnology Centre, National Dairy Research Institute , Karnal-132001, Haryana, India
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Wang B, Wang Y, Zhang M, Du Y, Zhang Y, Xing X, Zhang L, Su J, Zhang Y, Zheng Y. MicroRNA-34c expression in donor cells influences the early development of somatic cell nuclear transfer bovine embryos. Cell Reprogram 2015; 16:418-27. [PMID: 25437869 DOI: 10.1089/cell.2014.0016] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
The essence of the reprogramming activity of somatic cell nuclear transfer (SCNT) embryos is to produce normal fertilized embryos. However, reprogramming of somatic cells is not as efficient as the reprogramming of sperm. In this report, we describe the effect of an inducible, specific miR-34 microRNA expression in donor cells that enables a similar level of sperm:transgene expression on the early development of SCNT embryos. Our results showed that donor cells with doxycycline (dox)-induced miR-34c expression for the preparation of SCNT embryos resulted in altered developmental rates, histone modification (H3K9ac and H3K4me3), and extent of apoptosis. The cleavage rate and blastocyst formation of the induced nuclear transfer (NT) group were significantly increased. The immunofluorescence signal of H3K9ac in embryos in the induced NT group significantly increased in two-cell- and eight-cell-stage embryos; that of H3K4me3 increased significantly in eight-cell-stage embryos. Although significant differences in staining signals of apoptosis were not detected between groups, lower apoptosis levels were observed in the induced NT group. In conclusion, miR-34c expression induced by dox treatment enhances the developmental potential of SCNT embryos, modifies the epigenetic status, and changes blastocyst quality.
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Affiliation(s)
- Bo Wang
- 1 College of Veterinary Medicine, Northwest A&F University , Yangling, 712100, Shaanxi, China
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Chromosome microduplication in somatic cells decreases the genetic stability of human reprogrammed somatic cells and results in pluripotent stem cells. Sci Rep 2015; 5:10114. [PMID: 25965553 PMCID: PMC4428033 DOI: 10.1038/srep10114] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2014] [Accepted: 03/30/2015] [Indexed: 01/01/2023] Open
Abstract
Human pluripotent stem cells, including cloned embryonic and induced pluripotent stem cells, offer a limitless cellular source for regenerative medicine. However, their derivation efficiency is limited, and a large proportion of cells are arrested during reprogramming. In the current study, we explored chromosome microdeletion/duplication in arrested and established reprogrammed cells. Our results show that aneuploidy induced by somatic cell nuclear transfer technology is a key factor in the developmental failure of cloned human embryos and primary colonies from implanted cloned blastocysts and that expression patterns of apoptosis-related genes are dynamically altered. Overall, ~20%–53% of arrested primary colonies in induced plurpotent stem cells displayed aneuploidy, and upregulation of P53 and Bax occurred in all arrested primary colonies. Interestingly, when somatic cells with pre-existing chromosomal mutations were used as donor cells, no cloned blastocysts were obtained, and additional chromosomal mutations were detected in the resulting iPS cells following long-term culture, which was not observed in the two iPS cell lines with normal karyotypes. In conclusion, aneuploidy induced by the reprogramming process restricts the derivation of pluripotent stem cells, and, more importantly, pre-existing chromosomal mutations enhance the risk of genome instability, which limits the clinical utility of these cells.
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Kaith S, Saini M, Raja AK, Sahare AA, Jyotsana B, Madheshiya P, Palta P, Chauhan MS, Manik RS, Singla SK. Early cleavage of handmade cloned buffalo (Bubalus bubalis) embryos is an indicator of their developmental competence and quality. Reprod Domest Anim 2015; 50:214-220. [PMID: 25604613 DOI: 10.1111/rda.12472] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Accepted: 11/30/2014] [Indexed: 12/14/2022]
Abstract
Following IVF, embryos which cleave early have been shown to have higher developmental competence and quality than those that cleave relatively later across many species. We investigated the effect of time of cleavage on the developmental competence, quality, epigenetic status and gene expression in buffalo embryos produced by handmade cloning (HMC). Following classification of embryos as early cleaving (EC) or late cleaving (LC) based on whether they had cleaved or not at 24 h post in vitro culture, 54% (164/303) were found to be EC and the rest to be LC. The blastocyst rate (58.1 ± 3.4 vs 36.9 ± 1.6%, p < 0.01) and the total cell number (285.5 ± 41.9 vs 141.4 ± 36.1, p < 0.05) were higher, whereas the apoptotic index (3.6 ± 0.6 vs 12.2 ± 1.7, p < 0.01) and the global level of H3K9ac and H3K27me3 were lower (p < 0.05) in the blastocysts produced from EC than in those produced from LC embryos. The relative transcript level of CASPASE3, CASPASE7, DNMT1, DNMT3a and CDX2 was higher (p < 0.05) and that of SOX2 was lower (p < 0.05) in blastocysts produced from LC than in those produced from EC embryos, whereas the expression level of CASPASE6, P53, P21, HDAC1, OCT4 and NANOG was not significantly different between the two groups. These results show that (i) following HMC, blastocysts produced from embryos that cleave early differ from those produced from late cleaving embryos in terms of epigenetic status and expression level of many important apoptosis-, pluripotency-, trophectoderm- and epigenetics-related genes, and (ii) EC embryos are superior to LC embryos in view of their higher developmental competence and quality.
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Affiliation(s)
- S Kaith
- Embryo Biotechnology Laboratory, Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India
| | - M Saini
- Embryo Biotechnology Laboratory, Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India
| | - A K Raja
- Embryo Biotechnology Laboratory, Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India
| | - A A Sahare
- Embryo Biotechnology Laboratory, Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India
| | - B Jyotsana
- Embryo Biotechnology Laboratory, Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India
| | - P Madheshiya
- Embryo Biotechnology Laboratory, Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India
| | - P Palta
- Embryo Biotechnology Laboratory, Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India
| | - M S Chauhan
- Embryo Biotechnology Laboratory, Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India
| | - R S Manik
- Embryo Biotechnology Laboratory, Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India
| | - S K Singla
- Embryo Biotechnology Laboratory, Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India
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Pan S, Chen W, Liu X, Xiao J, Wang Y, Liu J, Du Y, Wang Y, Zhang Y. Application of a novel population of multipotent stem cells derived from skin fibroblasts as donor cells in bovine SCNT. PLoS One 2015; 10:e0114423. [PMID: 25602959 PMCID: PMC4300223 DOI: 10.1371/journal.pone.0114423] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Accepted: 11/10/2014] [Indexed: 01/26/2023] Open
Abstract
Undifferentiated stem cells are better donor cells for somatic cell nuclear transfer (SCNT), resulting in more offspring than more differentiated cells. While various stem cell populations have been confirmed to exist in the skin, progress has been restricted due to the lack of a suitable marker for their prospective isolation. To address this fundamental issue, a marker is required that could unambiguously prove the differentiation state of the donor cells. We therefore utilized magnetic activated cell sorting (MACS) to separate a homogeneous population of small SSEA-4+ cells from a heterogeneous population of bovine embryonic skin fibroblasts (BEF). SSEA-4+ cells were 8-10 μm in diameter and positive for alkaline phosphatase (AP). The percentage of SSEA-4+ cells within the cultured BEF population was low (2-3%). Immunocytochemistry and PCR analyses revealed that SSEA-4+ cells expressed pluripotency-related markers, and could differentiate into cells comprising all three germ layers in vitro. They remained undifferentiated over 20 passages in suspension culture. In addition, cloned embryos derived from SSEA-4 cells showed significant differences in cleavage rate and blastocyst development when compared with those from BEF and SSEA-4− cells. Moreover, blastocysts derived from SSEA-4+ cells showed a higher total cell number and lower apoptotic index as compared to BEF and SSEA-4– derived cells. It is well known that nuclei from pluripotent stem cells yield a higher cloning efficiency than those from adult somatic cells, however, pluripotent stem cells are relatively difficult to obtain from bovine. The SSEA-4+ cells described in the current study provide an attractive candidate for SCNT and a promising platform for the generation of transgenic cattle.
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Affiliation(s)
- Shaohui Pan
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
- Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Northwest A&F University, Yangling, Shaanxi, China
| | - Wuju Chen
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
- Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Northwest A&F University, Yangling, Shaanxi, China
| | - Xu Liu
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
- Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Northwest A&F University, Yangling, Shaanxi, China
| | - Jiajia Xiao
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
- Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Northwest A&F University, Yangling, Shaanxi, China
| | - Yanqin Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
- Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Northwest A&F University, Yangling, Shaanxi, China
| | - Jun Liu
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
- Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Northwest A&F University, Yangling, Shaanxi, China
| | - Yue Du
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
- Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Northwest A&F University, Yangling, Shaanxi, China
| | - Yongsheng Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
- Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Northwest A&F University, Yangling, Shaanxi, China
- * E-mail: (YW); (YZ)
| | - Yong Zhang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
- Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Northwest A&F University, Yangling, Shaanxi, China
- * E-mail: (YW); (YZ)
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Abstract
Nuclear transfer (NT) technique provides a powerful experimental tool to study the mechanisms of reprogramming processes and to derive NT-embryonic stem (ntES) cells from living or frozen animals. The Piezo-driven direct microinjection NT method has proved to be a valid technique to clone mice and other species. In addition, this method has been broadly used as a versatile tool for many fields of mouse micromanipulation. This chapter describes the "one step method" protocol of nuclear transfer in mouse, which combines injection of a donor cell nucleus and enucleation of MII metaphase in a single manipulation procedure. This protocol describes the isolation and collection of oocytes, treatment of donor cells, visualization of spindle-chromosomal complex, direct injection and enucleation, activation of reconstructed embryos and their in vitro culture and transfer into pseudopregnant mice.
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Affiliation(s)
- Vincent Brochard
- INRA, UMR1198 Biologie du Développement et Reproduction, Jouy-en-Josas, 78350, France
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31
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Ding C, Li T, Zeng Y, Hong P, Xu Y, Zhou C. Effects of in-vitro or in-vivo matured ooplasm and spindle-chromosome complex on the development of spindle-transferred oocytes. Reprod Biomed Online 2014; 29:708-16. [DOI: 10.1016/j.rbmo.2014.08.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2014] [Revised: 08/20/2014] [Accepted: 08/27/2014] [Indexed: 11/26/2022]
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Xu FQ, Liu R, Ma Y, Liu L, Liang JY, Ma Y. Embryo selection strategy in sibling oocytes: a novel approach to measuring the likelihood of single‑embryo transfer using a mouse embryo transfer model. Mol Med Rep 2014; 9:1952-8. [PMID: 24584547 DOI: 10.3892/mmr.2014.1998] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2013] [Accepted: 02/10/2014] [Indexed: 11/05/2022] Open
Abstract
The present study investigated the effect of embryo transfer on post-implantation development using different fertilization approaches in sibling oocyte procedures. C57BL/6, DBA/2, C3H/HeJ and ICR mice were used at 8-10 weeks of age. Mature oocytes were collected, divided into two groups and fertilized using in vitro fertilization (IVF) or intracytoplasmic sperm injection (ICSI). Different numbers of the resulting blastocysts were then transferred into recipients and designated as either: The single embryo transfer (SET) I model (one transferred embryo), the SET II model (six transferred embryos) or the multiple embryo transfer (MET) model (24 transferred embryos). The development efficiency, cell number, number of apoptotic cells in blastocysts, pregnancy efficiency, delivery rate and cumulative pregnancy efficiency were analyzed. IVF-fertilized embryos exhibited higher blastocyst development competence and embryo quality compared with ICSI embryos. The pregnancy and delivery efficiency was not identified to be significantly different between the two SET models, but it was lower in these two models than in the MET model. The cumulative pregnancy efficiency in SET models, calculated using a mathematical equation, was not decreased. In conclusion, embryo quality was shown to be the primary factor in selecting embryos prior to embryo transfer using sibling oocytes. In addition, single blastocyst transfer can be performed in sibling oocytes without compromising cumulative pregnancy rates, independent of the fertilization approach.
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Affiliation(s)
- Feng-Qin Xu
- Center of Reproductive Medicine, Tianjin First Central Hospital, Tianjin 300312, P.R. China
| | - Rong Liu
- Center of Reproductive Medicine, Tianjin First Central Hospital, Tianjin 300312, P.R. China
| | - Ying Ma
- Center of Reproductive Medicine, Tianjin First Central Hospital, Tianjin 300312, P.R. China
| | - Li Liu
- Center of Reproductive Medicine, Tianjin First Central Hospital, Tianjin 300312, P.R. China
| | - Ju-Yan Liang
- Center of Reproductive Medicine, Tianjin First Central Hospital, Tianjin 300312, P.R. China
| | - Yan Ma
- Center of Reproductive Medicine, Tianjin First Central Hospital, Tianjin 300312, P.R. China
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Priya D, Selokar NL, Raja AK, Saini M, Sahare AA, Nala N, Palta P, Chauhan MS, Manik RS, Singla SK. Production of wild buffalo (Bubalus arnee) embryos by interspecies somatic cell nuclear transfer using domestic buffalo (Bubalus bubalis) oocytes. Reprod Domest Anim 2014; 49:343-51. [PMID: 24494649 DOI: 10.1111/rda.12284] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2013] [Accepted: 12/30/2013] [Indexed: 11/29/2022]
Abstract
The objective of this study was to explore the possibility of producing wild buffalo embryos by interspecies somatic cell nuclear transfer (iSCNT) through handmade cloning using wild buffalo somatic cells and domestic buffalo (Bubalus bubalis) oocytes. Somatic cells derived from the ear skin of wild buffalo were found to express vimentin but not keratin and cytokeratin-18, indicating that they were of fibroblast origin. The population doubling time of skin fibroblasts from wild buffalo was significantly (p < 0.05) higher, and the cell proliferation rate was significantly (p < 0.05) lower compared with that of skin fibroblasts from domestic buffalo. Neither the cleavage (92.6 ± 2.0% vs 92.8 ± 2.0%) nor the blastocyst rate (42.4 ± 2.4% vs 38.7 ± 2.8%) was significantly different between the intraspecies cloned embryos produced using skin fibroblasts from domestic buffalo and interspecies cloned embryos produced using skin fibroblasts from wild buffalo. However, the total cell number (TCN) was significantly (p < 0.05) lower (192.0 ± 25.6 vs 345.7 ± 42.2), and the apoptotic index was significantly (p < 0.05) higher (15.1 ± 3.1 vs 8.0 ± 1.4) for interspecies than that for intraspecies cloned embryos. Following vitrification in open-pulled straws (OPS) and warming, although the cryosurvival rate of both types of cloned embryos, as indicated by their re-expansion rate, was not significantly different (34.8 ± 1.5% vs 47.8 ± 7.8), the apoptotic index was significantly (p < 0.05) higher for vitrified-warmed interspecies than that for corresponding intraspecies cloned embryos (48.9 ± 7.2 vs 23.9 ± 2.8). The global level of H3K18ac was significantly (p < 0.05) lower in interspecies cloned embryos than that in intraspecies cloned embryos. The expression level of HDAC1, DNMT3a and CASPASE3 was significantly (p < 0.05) higher, that of P53 was significantly (p < 0.05) lower in interspecies than in intraspecies embryos, whereas that of DNMT1 was similar between the two types of embryos. In conclusion, these results demonstrate that wild buffalo embryos can be produced by iSCNT.
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Affiliation(s)
- D Priya
- Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India
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Fan Y, Li R, Huang J, Zhao HC, Ding T, Sun X, Yu Y, Qiao J. Improved efficiency of microsurgical enucleated tripronuclear zygotes development and embryonic stem cell derivation by supplementing epidermal growth factor, brain-derived neurotrophic factor, and insulin-like growth factor-1. Stem Cells Dev 2014; 23:563-75. [PMID: 24261581 DOI: 10.1089/scd.2013.0420] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Human embryonic stem cells (hESCs) hold great promise for future clinical cell therapies because of their unique potential to differentiate into all human cell types. However, the destruction of normal fertilized embryos and the derivation of hESCs for research has resulted in polarized ethical debates, with most of the controversy centered on embryo destruction. Therefore, due to less ethical controversy surrounding them, abnormal fertilized zygotes that are usually discarded are a potential feasible resource for the derivation of hESCs. Microsurgery on human polyspermic zygotes can contribute to the derivation of hESCs, but the efficiency is much lower. Here, we reported a culture system to enhance the developmental competence of such microsurgical human polyspermic zygotes by EGF-BDNF-IGF-1 combination, which eventually resulted in the increased derivation efficiency of hESCs from them. We found that the developmental efficiency of microsurgical enucleated tripronuclear (3PN) embryos cultured with the EGF-BDNF-IGF-1 combination was significantly increased compared with the control group. More importantly, when the microsurgical enucleated 3PN embryos were cultured in medium supplemented with EGF-BDNF-IGF-1, the frequency ratio of chromosome abnormality was reduced. Our present study will facilitate the development of hESC line derivation in subsequent studies and also provide an additional choice for infertile couples.
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Affiliation(s)
- Yong Fan
- 1 Key Laboratory for Major Obstetric Diseases of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University , Guangzhou, People's Republic of China
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Zhang H, Wang Y, Sang Y, Zhang Y, Hua S. Combination of S-adenosylhomocysteine and scriptaid, a non-toxic epigenetic modifying reagent, modulates the reprogramming of bovine somatic-cell nuclear transfer embryos. Mol Reprod Dev 2013; 81:87-97. [PMID: 24347442 DOI: 10.1002/mrd.22287] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2013] [Accepted: 11/20/2013] [Indexed: 11/07/2022]
Abstract
The goal of this study was to improve the development of bovine somatic-cell nuclear transfer (SCNT) embryos by optimizing the combination of DNA methyltransferases inhibitor S-adenosylhomocysteine (SAH) and histone deacetylase inhibitor Scriptaid (SPD). A. 4 × 4-factor design of different drug combinations (0, 0.75, 1.0, and 1.5 mM SAH and 0, 5, 250, and 500 nM SPD) was used to identify an optimal combination of 0.75 mM SAH and 250 nM SPD that improved the developmental competence of bovine SCNT embryos. Further experiments using this combination revealed that methylation levels of CpG islands near exon 1 of the pluripotent gene SOX2; the epigenetic-related gene HDAC3 and DNMT3a; imprinted genes XIST and PEG3; as well as apoptosis-related genes BCL2 and BAX were returned to levels similar to those of in vitro fertilized (IVF) embryo after treatment, which also normalized transcript levels for these genes. This combination also returned global DNA methylation to a normal level, correcting H4K12ac levels while enhancing H3K9ac levels. Thus, the combined application of 0.75 mM SAH and 250 nM SPD can significantly improve the reprogramming of bovine SCNT embryos by stabilizing how embryos utilize their genomes.
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Affiliation(s)
- Hui Zhang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, People's Republic of China; Key Laboratory of Biological Technology, Ministry of Agriculture, Yangling, China
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Zhao HC, Zhao Y, Li M, Yan J, Li L, Li R, Liu P, Yu Y, Qiao J. Aberrant epigenetic modification in murine brain tissues of offspring from preimplantation genetic diagnosis blastomere biopsies. Biol Reprod 2013; 89:117. [PMID: 24089199 DOI: 10.1095/biolreprod.113.109926] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Preimplantation genetic diagnosis (PGD) has been prevalent in the field of assisted reproductive technology, yet the long-term risks of PGD to offspring remain unknown. In the present study, the early development of PGD embryos, postimplantation characteristics, and birth rate following PGD were determined. Moreover, the behavior of the offspring conceived from the biopsied embryos was evaluated with the Morris water maze and pole climbing tests. Finally, the epigenetic modification of the global genome and methylation patterns for the H19, Igf2, and Snrpn imprinted genes were identified. The results indicated a significant delay in the blastocoel formation of PGD embryos and a decrease in the implantation ability of these embryos, which was related to the decreased number of cells in the PGD blastocysts. The PGD mice spent more time on both the nontrained quadrant of the water maze and climbing down the pole. Furthermore, the 5-hydroxymethylcytosine content in the brain tissues of PGD mice was significantly increased, but no difference was found in 5-methylcytosine content. The differentially methylated regions of H19/Igf2 exhibited decreased methylation patterns, but that of Snrpn was normal, compared to the control group. Quantitative RT-PCR indicated that Igf2 mRNA expression was significantly decreased but that H19 and Snrpn mRNAs were expressed normally. In conclusion, blastomere biopsies in PGD procedures carry potential risks to embryo development and the behavior of resulting offspring; these risks may arise from aberrant epigenetic modification and methylation patterns in brain tissues. Further studies are needed to better understand the risks associated with PGD.
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Affiliation(s)
- Hong-Cui Zhao
- Center of Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China
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Latrunculin A treatment prevents abnormal chromosome segregation for successful development of cloned embryos. PLoS One 2013; 8:e78380. [PMID: 24205216 PMCID: PMC3813513 DOI: 10.1371/journal.pone.0078380] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2013] [Accepted: 09/20/2013] [Indexed: 12/22/2022] Open
Abstract
Somatic cell nuclear transfer to an enucleated oocyte is used for reprogramming somatic cells with the aim of achieving totipotency, but most cloned embryos die in the uterus after transfer. While modifying epigenetic states of cloned embryos can improve their development, the production rate of cloned embryos can also be enhanced by changing other factors. It has already been shown that abnormal chromosome segregation (ACS) is a major cause of the developmental failure of cloned embryos and that Latrunculin A (LatA), an actin polymerization inhibitor, improves F-actin formation and birth rate of cloned embryos. Since F-actin is important for chromosome congression in embryos, here we examined the relation between ACS and F-actin in cloned embryos. Using LatA treatment, the occurrence of ACS decreased significantly whereas cloned embryo-specific epigenetic abnormalities such as dimethylation of histone H3 at lysine 9 (H3K9me2) could not be corrected. In contrast, when H3K9me2 was normalized using the G9a histone methyltransferase inhibitor BIX-01294, the Magea2 gene—essential for normal development but never before expressed in cloned embryos—was expressed. However, this did not increase the cloning success rate. Thus, non-epigenetic factors also play an important role in determining the efficiency of mouse cloning.
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Fakruzzaman M, Bang JI, Lee KL, Kim SS, Ha AN, Ghanem N, Han CH, Cho KW, White KL, Kong IK. Mitochondrial content and gene expression profiles in oocyte-derived embryos of cattle selected on the basis of brilliant cresyl blue staining. Anim Reprod Sci 2013; 142:19-27. [PMID: 24070583 DOI: 10.1016/j.anireprosci.2013.08.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2013] [Revised: 08/23/2013] [Accepted: 08/30/2013] [Indexed: 10/26/2022]
Abstract
The aim of this study was to investigate the developmental rate, lipid and mitochondrial distribution and gene expression in oocyte-derived embryos selected on the basis of brilliant cresyl blue (BCB) staining. Lipid content and mitochondrial distribution in Day 8 blastocysts were evaluated by fluorescence intensity, while gene expression was analyzed by real-time PCR. The proportion of blastocysts (30.9%) was greater (P<0.05) in BCB+ than in BCB- oocytes (13%) but not different (P>0.05) from the control group (28.2%). Total cell number was also greater in BCB+ (155.1 ± 36.2) than in BCB- (116.6 ± 40.5) and control (127.5 ± 35.7) blastocysts. Furthermore, the apoptotic cell number was less in BCB+ (3.7 ± 4.4) than in BCB- blastocysts (8.7 ± 8.7) but not different from the control group (5.9 ± 3.9). BCB+ embryos contained more mitochondria compared to BCB- embryos (P<0.05). There was no significant difference in intercellular lipid accumulation in embryos from all groups. Interferon-τ (IFNτ), transforming growth factor β1 (TGFB1) and secreted seminal-vesicle Ly-6 protein 1 (SSLP1) gene expression was greater in BCB+ than in BCB- blastocysts. By contrast, Bcl2-associated X protein (BAX) and heterogeneous nuclear ribonucleoprotein A2/B1 (HNRNPA2B1) gene expression was greater in BCB- than in BCB+ and control embryos. In conclusion, oocyte-derived embryos selected on the basis of BCB staining showed differences in developmental rate, quality, mitochondrial content and target gene expression compared to control embryos.
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Affiliation(s)
- Md Fakruzzaman
- Department of Animal Science, Division of Applied Life Science (BK21), Graduate School of Gyeongsang National University, Jinju 660-701, Republic of Korea
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Ogura A, Inoue K, Wakayama T. Recent advancements in cloning by somatic cell nuclear transfer. Philos Trans R Soc Lond B Biol Sci 2013; 368:20110329. [PMID: 23166393 DOI: 10.1098/rstb.2011.0329] [Citation(s) in RCA: 152] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Somatic cell nuclear transfer (SCNT) cloning is the sole reproductive engineering technology that endows the somatic cell genome with totipotency. Since the first report on the birth of a cloned sheep from adult somatic cells in 1997, many technical improvements in SCNT have been made by using different epigenetic approaches, including enhancement of the levels of histone acetylation in the chromatin of the reconstructed embryos. Although it will take a considerable time before we fully understand the nature of genomic programming and totipotency, we may expect that somatic cell cloning technology will soon become broadly applicable to practical purposes, including medicine, pharmaceutical manufacturing and agriculture. Here we review recent progress in somatic cell cloning, with a special emphasis on epigenetic studies using the laboratory mouse as a model.
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Affiliation(s)
- Atsuo Ogura
- RIKEN BioResource Center, Tsukuba, Ibaraki, Japan.
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Replacement of glutamine with the dipeptide derivative alanyl-glutamine enhances in vitro maturation of porcine oocytes and development of embryos. ZYGOTE 2013; 22:286-9. [PMID: 23442979 DOI: 10.1017/s0967199412000688] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The presence of glutamine (Gln) in in vitro maturation (IVM) and in vitro culture (IVC) medium is a more potent factor for improving porcine oocyte and embryo development than other amino acids. However Gln is inherently unstable and spontaneously breaks down into ammonia, and therefore interferes with proper development. To avoid this adverse effect, Gln was replaced in the present study with its stable dipeptide derivative alanyl-glutamine (Ala-Gln) and the effects of this replacement on porcine IVM and IVC were evaluated. Replacement of Gln with Ala-Gln during IVM did not improve nuclear maturation, however numbers of early cleaved embryos were significantly increased after activation. Blastocyst formation rates were also significantly improved by using Ala-Gln during IVM. Replacement of Gln with Ala-Gln during IVC significantly increased total cell numbers in blastocysts. Blastocyst formation rate was also significantly higher when Ala-Gln was used in both IVM and IVC. In conclusion, the use of Ala-Gln rather than Gln gives better results for development in both porcine IVM and IVC.
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Li M, Zhao Y, Zhao CH, Yan J, Yan YL, Rong L, Liu P, Feng HL, Yu Y, Qiao J. High FSH decreases the developmental potential of mouse oocytes and resulting fertilized embryos, but does not influence offspring physiology and behavior in vitro or in vivo. Hum Reprod 2013; 28:1309-23. [DOI: 10.1093/humrep/det014] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Gall L, Brochard V, Ruffini S, Laffont L, Fleurot R, Lavin TA, Jouneau A, Beaujean N. Intermediate Filaments Promote Nuclear Mechanical Constraints During Somatic Cell Nuclear Transfer in the Mouse. Cell Reprogram 2012. [DOI: 10.1089/cell.2012.0027] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Laurence Gall
- INRA, UMR 1198 Biologie du Développement et Reproduction, F-78350 Jouy en Josas, France
- ENVA, F-94700 Maisons Alfort, France
| | - Vincent Brochard
- INRA, UMR 1198 Biologie du Développement et Reproduction, F-78350 Jouy en Josas, France
- ENVA, F-94700 Maisons Alfort, France
| | - Sylvie Ruffini
- INRA, UMR 1198 Biologie du Développement et Reproduction, F-78350 Jouy en Josas, France
- ENVA, F-94700 Maisons Alfort, France
| | - Ludivine Laffont
- INRA, UMR 1198 Biologie du Développement et Reproduction, F-78350 Jouy en Josas, France
- ENVA, F-94700 Maisons Alfort, France
| | - Renaud Fleurot
- INRA, UMR 1198 Biologie du Développement et Reproduction, F-78350 Jouy en Josas, France
- ENVA, F-94700 Maisons Alfort, France
| | - Tiphaine Aguirre Lavin
- INRA, UMR 1198 Biologie du Développement et Reproduction, F-78350 Jouy en Josas, France
- ENVA, F-94700 Maisons Alfort, France
| | - Alice Jouneau
- INRA, UMR 1198 Biologie du Développement et Reproduction, F-78350 Jouy en Josas, France
- ENVA, F-94700 Maisons Alfort, France
| | - Nathalie Beaujean
- INRA, UMR 1198 Biologie du Développement et Reproduction, F-78350 Jouy en Josas, France
- ENVA, F-94700 Maisons Alfort, France
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Su J, Wang Y, Li R, Peng H, Hua S, Li Q, Quan F, Guo Z, Zhang Y. Oocytes selected using BCB staining enhance nuclear reprogramming and the in vivo development of SCNT embryos in cattle. PLoS One 2012; 7:e36181. [PMID: 22558373 PMCID: PMC3338625 DOI: 10.1371/journal.pone.0036181] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2011] [Accepted: 03/28/2012] [Indexed: 11/18/2022] Open
Abstract
The selection of good quality oocytes is crucial for in vitro fertilization and somatic cloning. Brilliant cresyl blue (BCB) staining has been used for selection of oocytes from several mammalian species. However, the effects of differential oocyte selection by BCB staining on nuclear reprogramming and in vivo development of SCNT embryos are not well understood. Immature compact cumulus-oocyte complexes (COCs) were divided into control (not exposed to BCB), BCB+ (blue cytoplasm) and BCB- (colorless cytoplasm) groups. We found that BCB+ oocytes yielded a significantly higher somatic cell nuclear transfer (SCNT) blastocyst rate and full term development rate of bovine SCNT embryos than the BCB- and control oocytes. BCB+ embryos (embryos developed from BCB+ oocytes) showed increased acetylation levels of histone H3 at K9 and K18 (AcH3K9, AcH3K18), and methylation levels of histone H3 at K4 (H3K4me2) than BCB- embryos (embryos developed from BCB- oocytes) at the two-cell stage. Furthermore, BCB+ embryos generated more total cells, trophectoderm (TE) cells, and inner cell mass (ICM) cells, and fewer apoptotic cells than BCB- embryos. The expression of SOX2, CDX2, and anti-apoptotic microRNA-21 were up-regulated in the BCB+ blastocysts compared with BCB- blastocysts, whereas the expression of pro-apoptotic gene Bax was down-regulated in BCB+ blastocysts. These results strongly suggest that BCB+ oocytes have a higher nuclear reprogramming capacity, and that BCB staining can be used to select developmentally competent oocytes for nuclear transfer.
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Affiliation(s)
- Jianmin Su
- College of Veterinary Medicine, Northwest A & F University, Key Laboratory of Animal Reproductive Physiology & Embryo Technology, Ministry of Agriculture, Yangling, Shaanxi, People's Republic of China
| | - Yongsheng Wang
- College of Veterinary Medicine, Northwest A & F University, Key Laboratory of Animal Reproductive Physiology & Embryo Technology, Ministry of Agriculture, Yangling, Shaanxi, People's Republic of China
| | - Ruizhe Li
- College of Veterinary Medicine, Northwest A & F University, Key Laboratory of Animal Reproductive Physiology & Embryo Technology, Ministry of Agriculture, Yangling, Shaanxi, People's Republic of China
| | - Hui Peng
- College of Veterinary Medicine, Northwest A & F University, Key Laboratory of Animal Reproductive Physiology & Embryo Technology, Ministry of Agriculture, Yangling, Shaanxi, People's Republic of China
| | - Song Hua
- College of Veterinary Medicine, Northwest A & F University, Key Laboratory of Animal Reproductive Physiology & Embryo Technology, Ministry of Agriculture, Yangling, Shaanxi, People's Republic of China
| | - Qian Li
- College of Veterinary Medicine, Northwest A & F University, Key Laboratory of Animal Reproductive Physiology & Embryo Technology, Ministry of Agriculture, Yangling, Shaanxi, People's Republic of China
| | - Fusheng Quan
- College of Veterinary Medicine, Northwest A & F University, Key Laboratory of Animal Reproductive Physiology & Embryo Technology, Ministry of Agriculture, Yangling, Shaanxi, People's Republic of China
| | - Zekun Guo
- Department of Biochemistry and Molecular Biology, College of Life Sciences, Northwest A & F University, Yangling, Shaanxi, People's Republic of China
| | - Yong Zhang
- College of Veterinary Medicine, Northwest A & F University, Key Laboratory of Animal Reproductive Physiology & Embryo Technology, Ministry of Agriculture, Yangling, Shaanxi, People's Republic of China
- * E-mail:
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Balbach ST, Esteves TC, Houghton FD, Siatkowski M, Pfeiffer MJ, Tsurumi C, Kanzler B, Fuellen G, Boiani M. Nuclear reprogramming: kinetics of cell cycle and metabolic progression as determinants of success. PLoS One 2012; 7:e35322. [PMID: 22530006 PMCID: PMC3329427 DOI: 10.1371/journal.pone.0035322] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2011] [Accepted: 03/14/2012] [Indexed: 01/16/2023] Open
Abstract
Establishment of totipotency after somatic cell nuclear transfer (NT) requires not only reprogramming of gene expression, but also conversion of the cell cycle from quiescence to the precisely timed sequence of embryonic cleavage. Inadequate adaptation of the somatic nucleus to the embryonic cell cycle regime may lay the foundation for NT embryo failure and their reported lower cell counts. We combined bright field and fluorescence imaging of histone H2b-GFP expressing mouse embryos, to record cell divisions up to the blastocyst stage. This allowed us to quantitatively analyze cleavage kinetics of cloned embryos and revealed an extended and inconstant duration of the second and third cell cycles compared to fertilized controls generated by intracytoplasmic sperm injection (ICSI). Compared to fertilized embryos, slow and fast cleaving NT embryos presented similar rates of errors in M phase, but were considerably less tolerant to mitotic errors and underwent cleavage arrest. Although NT embryos vary substantially in their speed of cell cycle progression, transcriptome analysis did not detect systematic differences between fast and slow NT embryos. Profiling of amino acid turnover during pre-implantation development revealed that NT embryos consume lower amounts of amino acids, in particular arginine, than fertilized embryos until morula stage. An increased arginine supplementation enhanced development to blastocyst and increased embryo cell numbers. We conclude that a cell cycle delay, which is independent of pluripotency marker reactivation, and metabolic restraints reduce cell counts of NT embryos and impede their development.
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Affiliation(s)
| | | | - Franchesca Dawn Houghton
- Faculty of Medicine, University of Southampton, Southampton General Hospital, Southampton, United Kingdom
| | - Marcin Siatkowski
- German Center for Neurodegenerative Disorders, DZNE, Rostock, Germany
- Institute for Biostatistics and Informatics in Medicine and Ageing Research, University of Rostock, Rostock, Germany
| | | | - Chizuko Tsurumi
- Department of Radiation Oncology, University Hospital Freiburg, Freiburg, Germany
| | - Benoit Kanzler
- Max Planck Institute of Immunobiology and Epigenetics, Freiburg, Germany
| | - Georg Fuellen
- Institute for Biostatistics and Informatics in Medicine and Ageing Research, University of Rostock, Rostock, Germany
| | - Michele Boiani
- Max Planck Institute for Molecular Biomedicine, Münster, Germany
- * E-mail:
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Mizutani E, Yamagata K, Ono T, Akagi S, Geshi M, Wakayama T. Abnormal chromosome segregation at early cleavage is a major cause of the full-term developmental failure of mouse clones. Dev Biol 2012; 364:56-65. [DOI: 10.1016/j.ydbio.2012.01.001] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2011] [Revised: 12/27/2011] [Accepted: 01/03/2012] [Indexed: 10/14/2022]
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Su J, Wang Y, Li Y, Li R, Li Q, Wu Y, Quan F, Liu J, Guo Z, Zhang Y. Oxamflatin significantly improves nuclear reprogramming, blastocyst quality, and in vitro development of bovine SCNT embryos. PLoS One 2011; 6:e23805. [PMID: 21912607 PMCID: PMC3166058 DOI: 10.1371/journal.pone.0023805] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2011] [Accepted: 07/25/2011] [Indexed: 12/27/2022] Open
Abstract
Aberrant epigenetic nuclear reprogramming results in low somatic cloning efficiency. Altering epigenetic status by applying histone deacetylase inhibitors (HDACi) enhances developmental potential of somatic cell nuclear transfer (SCNT) embryos. The present study was carried out to examine the effects of Oxamflatin, a novel HDACi, on the nuclear reprogramming and development of bovine SCNT embryos in vitro. We found that Oxamflatin modified the acetylation status on H3K9 and H3K18, increased total and inner cell mass (ICM) cell numbers and the ratio of ICM∶trophectoderm (TE) cells, reduced the rate of apoptosis in SCNT blastocysts, and significantly enhanced the development of bovine SCNT embryos in vitro. Furthermore, Oxamflatin treatment suppressed expression of the pro-apoptotic gene Bax and stimulated expression of the anti-apoptotic gene Bcl-XL and the pluripotency-related genes OCT4 and SOX2 in SCNT blastocysts. Additionally, the treatment also reduced the DNA methylation level of satellite I in SCNT blastocysts. In conclusion, Oxamflatin modifies epigenetic status and gene expression, increases blastocyst quality, and subsequently enhances the nuclear reprogramming and developmental potential of SCNT embryos.
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Affiliation(s)
- Jianmin Su
- College of Veterinary Medicine, Northwest A&F University, Key Laboratory of Animal Reproductive Physiology and Embryo Technology, Ministry of Agriculture, Yangling, Shaanxi, People's Republic of China
- * E-mail: (JMS); (YZ)
| | - Yongsheng Wang
- College of Veterinary Medicine, Northwest A&F University, Key Laboratory of Animal Reproductive Physiology and Embryo Technology, Ministry of Agriculture, Yangling, Shaanxi, People's Republic of China
| | - Yanyan Li
- College of Veterinary Medicine, Northwest A&F University, Key Laboratory of Animal Reproductive Physiology and Embryo Technology, Ministry of Agriculture, Yangling, Shaanxi, People's Republic of China
| | - Ruizhe Li
- College of Veterinary Medicine, Northwest A&F University, Key Laboratory of Animal Reproductive Physiology and Embryo Technology, Ministry of Agriculture, Yangling, Shaanxi, People's Republic of China
| | - Qian Li
- College of Veterinary Medicine, Northwest A&F University, Key Laboratory of Animal Reproductive Physiology and Embryo Technology, Ministry of Agriculture, Yangling, Shaanxi, People's Republic of China
| | - Yongyan Wu
- College of Veterinary Medicine, Northwest A&F University, Key Laboratory of Animal Reproductive Physiology and Embryo Technology, Ministry of Agriculture, Yangling, Shaanxi, People's Republic of China
| | - Fusheng Quan
- College of Veterinary Medicine, Northwest A&F University, Key Laboratory of Animal Reproductive Physiology and Embryo Technology, Ministry of Agriculture, Yangling, Shaanxi, People's Republic of China
| | - Jun Liu
- College of Veterinary Medicine, Northwest A&F University, Key Laboratory of Animal Reproductive Physiology and Embryo Technology, Ministry of Agriculture, Yangling, Shaanxi, People's Republic of China
| | - Zekun Guo
- Department of Biochemistry and Molecular Biology, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
| | - Yong Zhang
- College of Veterinary Medicine, Northwest A&F University, Key Laboratory of Animal Reproductive Physiology and Embryo Technology, Ministry of Agriculture, Yangling, Shaanxi, People's Republic of China
- * E-mail: (JMS); (YZ)
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Cui XS, Xu YN, Shen XH, Zhang LQ, Zhang JB, Kim NH. Trichostatin A Modulates Apoptotic-Related Gene Expression and Improves Embryo Viability in Cloned Bovine Embryos. Cell Reprogram 2011; 13:179-89. [DOI: 10.1089/cell.2010.0060] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Affiliation(s)
- Xiang-Shun Cui
- Center for Laboratory Animal, Jilin University, Changchun, Jilin Province, People's Republic of China
| | - Yong-Nan Xu
- Department of Animal Science, Chungbuk National University, Cheongju, Chungbuk, Korea
| | - Xing-Hui Shen
- Department of Histology and Embryology, Harbin Medical University, Harbin, Heilongjiang Province, People's Republic of China
| | - Li-Qun Zhang
- Reproductive Medical Center, The First Hospital of Jilin University, Changchun, Jilin Province, People's Republic of China
| | - Jia-Bao Zhang
- Center for Laboratory Animal, Jilin University, Changchun, Jilin Province, People's Republic of China
| | - Nam-Hyung Kim
- Department of Animal Science, Chungbuk National University, Cheongju, Chungbuk, Korea
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Popova E, Bader M, Krivokharchenko A. Effects of electric field on early preimplantation development in vitro in mice and rats. Hum Reprod 2011; 26:662-70. [DOI: 10.1093/humrep/deq379] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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49
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50
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Sviridova-Chailakhyan TA, Kantor GM. Noninvasive optical laser technologies for the transplantation of mammalian nuclei. Biophysics (Nagoya-shi) 2010. [DOI: 10.1134/s000635091003005x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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