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Wu H, Zhou W, Liu H, Cui X, Ma W, Wu H, Li G, Wang L, Zhang J, Zhang X, Ji P, Lian Z, Liu G. Whole-genome methylation analysis reveals epigenetic variation between wild-type and nontransgenic cloned, ASMT transgenic cloned dairy goats generated by the somatic cell nuclear transfer. J Anim Sci Biotechnol 2022; 13:145. [PMID: 36434676 PMCID: PMC9701027 DOI: 10.1186/s40104-022-00764-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 08/03/2022] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND SCNT (somatic cell nuclear transfer) is of great significance to biological research and also to the livestock breeding. However, the survival rate of the SCNT cloned animals is relatively low compared to other transgenic methods. This indicates the potential epigenetic variations between them. DNA methylation is a key marker of mammalian epigenetics and its alterations will lead to phenotypic differences. In this study, ASMT (acetylserotonin-O-methyltransferase) ovarian overexpression transgenic goat was produced by using SCNT. To investigate whether there are epigenetic differences between cloned and WT (wild type) goats, WGBS (whole-genome bisulfite sequencing) was used to measure the whole-genome methylation of these animals. RESULTS It is observed that the different mCpG sites are mainly present in the intergenic and intronic regions between cloned and WT animals, and their CG-type methylation sites are strongly correlated. DMR (differentially methylated region) lengths are located around 1000 bp, mainly distributed in the exonic, intergenic and intronic functional domains. A total of 56 and 36 DMGs (differentially methylated genes) were identified by GO and KEGG databases, respectively. Functional annotation showed that DMGs were enriched in biological-process, cellular-component, molecular-function and other signaling pathways. A total of 10 identical genes related to growth and development were identified in GO and KEGG databases. CONCLUSION The differences in methylation genes among the tested animals have been identified. A total of 10 DMGs associated with growth and development were identified between cloned and WT animals. The results indicate that the differential patterns of DNA methylation between the cloned and WT goats are probably caused by the SCNT. These novel observations will help us to further identify the unveiled mechanisms of somatic cell cloning technology, particularly in goats.
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Affiliation(s)
- Hao Wu
- grid.22935.3f0000 0004 0530 8290National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agricultural, Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing, 100193 China ,Sany Institute of China Agricultural University, Sanya, 572025 China
| | - Wendi Zhou
- grid.22935.3f0000 0004 0530 8290National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agricultural, Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing, 100193 China
| | - Haijun Liu
- Institute of Animal Husbandry and Veterinary, Academy of Agricultural Sciences of Tianjin, Tianjin, 300192 China
| | - Xudai Cui
- Qingdao Senmiao Industrial Co., Ltd., Qingdao, 266101 China
| | - Wenkui Ma
- grid.22935.3f0000 0004 0530 8290National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agricultural, Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing, 100193 China
| | - Haixin Wu
- grid.22935.3f0000 0004 0530 8290National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agricultural, Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing, 100193 China
| | - Guangdong Li
- grid.22935.3f0000 0004 0530 8290National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agricultural, Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing, 100193 China
| | - Likai Wang
- grid.22935.3f0000 0004 0530 8290National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agricultural, Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing, 100193 China
| | - Jinlong Zhang
- Institute of Animal Husbandry and Veterinary, Academy of Agricultural Sciences of Tianjin, Tianjin, 300192 China
| | - Xiaosheng Zhang
- Institute of Animal Husbandry and Veterinary, Academy of Agricultural Sciences of Tianjin, Tianjin, 300192 China
| | - Pengyun Ji
- grid.22935.3f0000 0004 0530 8290National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agricultural, Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing, 100193 China
| | - Zhengxing Lian
- grid.22935.3f0000 0004 0530 8290National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agricultural, Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing, 100193 China
| | - Guoshi Liu
- grid.22935.3f0000 0004 0530 8290National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agricultural, Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing, 100193 China ,Sany Institute of China Agricultural University, Sanya, 572025 China
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Skrzyszowska M, Samiec M. Generating Cloned Goats by Somatic Cell Nuclear Transfer-Molecular Determinants and Application to Transgenics and Biomedicine. Int J Mol Sci 2021; 22:ijms22147490. [PMID: 34299109 PMCID: PMC8306346 DOI: 10.3390/ijms22147490] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 07/06/2021] [Accepted: 07/09/2021] [Indexed: 12/12/2022] Open
Abstract
The domestic goat (Capra aegagrus hircus), a mammalian species with high genetic merit for production of milk and meat, can be a tremendously valuable tool for transgenic research. This research is focused on the production and multiplication of genetically engineered or genome-edited cloned specimens by applying somatic cell nuclear transfer (SCNT), which is a dynamically developing assisted reproductive technology (ART). The efficiency of generating the SCNT-derived embryos, conceptuses, and progeny in goats was found to be determined by a variety of factors controlling the biological, molecular, and epigenetic events. On the one hand, the pivotal objective of our paper was to demonstrate the progress and the state-of-the-art achievements related to the innovative and highly efficient solutions used for the creation of transgenic cloned does and bucks. On the other hand, this review seeks to highlight not only current goals and obstacles but also future challenges to be faced by the approaches applied to propagate genetically modified SCNT-derived goats for the purposes of pharmacology, biomedicine, nutritional biotechnology, the agri-food industry, and modern livestock breeding.
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Extranuclear Inheritance of Mitochondrial Genome and Epigenetic Reprogrammability of Chromosomal Telomeres in Somatic Cell Cloning of Mammals. Int J Mol Sci 2021; 22:ijms22063099. [PMID: 33803567 PMCID: PMC8002851 DOI: 10.3390/ijms22063099] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 03/16/2021] [Indexed: 12/11/2022] Open
Abstract
The effectiveness of somatic cell nuclear transfer (SCNT) in mammals seems to be still characterized by the disappointingly low rates of cloned embryos, fetuses, and progeny generated. These rates are measured in relation to the numbers of nuclear-transferred oocytes and can vary depending on the technique applied to the reconstruction of enucleated oocytes. The SCNT efficiency is also largely affected by the capability of donor nuclei to be epigenetically reprogrammed in a cytoplasm of reconstructed oocytes. The epigenetic reprogrammability of donor nuclei in SCNT-derived embryos appears to be biased, to a great extent, by the extranuclear (cytoplasmic) inheritance of mitochondrial DNA (mtDNA) fractions originating from donor cells. A high frequency of mtDNA heteroplasmy occurrence can lead to disturbances in the intergenomic crosstalk between mitochondrial and nuclear compartments during the early embryogenesis of SCNT-derived embryos. These disturbances can give rise to incorrect and incomplete epigenetic reprogramming of donor nuclei in mammalian cloned embryos. The dwindling reprogrammability of donor nuclei in the blastomeres of SCNT-derived embryos can also be impacted by impaired epigenetic rearrangements within terminal ends of donor cell-descended chromosomes (i.e., telomeres). Therefore, dysfunctions in epigenetic reprogramming of donor nuclei can contribute to the enhanced attrition of telomeres. This accelerates the processes of epigenomic aging and replicative senescence in the cells forming various tissues and organs of cloned fetuses and progeny. For all the above-mentioned reasons, the current paper aims to overview the state of the art in not only molecular mechanisms underlying intergenomic communication between nuclear and mtDNA molecules in cloned embryos but also intrinsic determinants affecting unfaithful epigenetic reprogrammability of telomeres. The latter is related to their abrasion within somatic cell-inherited chromosomes.
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Duarte FB, Brígido MDM, Melo EDO, Báo SN, Martins CF. Strategies for transfection of bovine mesenchymal stem cells with pBC1-anti-CD3 vector. Anim Biotechnol 2020; 33:1014-1024. [PMID: 33380273 DOI: 10.1080/10495398.2020.1862137] [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: 10/22/2022]
Abstract
Cells from different origins behave differently regarding the incorporation of exogenous DNA and formation of transgenic cells. Milk production of recombinant antibody may benefit from efficient transfection protocols to produce transgenic animals. In this context, the objective of this study was to verify the transfection potential of bovine mesenchymal stem cells from Wharton's jelly (MSC-WJ) and adipose tissue (MSC-AT), comparing co-transfection protocols with vectors pBC1-anti-CD3 and pEF-NEO-GFP, using transfection reagents Lipofectamine LTX with Plus Reagent or Xfect. Skin fibroblasts (FIB) were used as the control group. Forty-eight hours after transfection, neomycin was added and cells cultured for 2 weeks. Treated cells were submitted to fluorescence microscopy, flow cytometry, and PCR evaluations. Wharton's jelly cells were sensitive to treatments and started necrosis. In the flow cytometry assay, the median fluorescence was higher in adipocytes than fibroblasts, for both the Xfect (20.057 ± 1.620,7 and 10.601 ± 702,86, respectively, p < 0.05) and LTX (19.590 ± 113,84 and 10.518 ± 442,65, respectively, p < 0.05). These results, associated with evaluation of epifluorescence, demonstrated that adipocytes presented a better response to transfection than other cells, independent of the kit used. Performing PCR on co-transfected cells demonstrated the presence of anti-CD3, making this approach feasible for future experiments.
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Affiliation(s)
- Fernanda Borges Duarte
- Embrapa Cerrados/Center of Technology for Zebu Dairy Cows (CTZL), Brazilian Agricultural Research Corporation, Brasilia, Brazil.,Cell Biology Department, Institute of Biological Sciences, University of Brasília, Brasilia, Brazil.,Postgraduate Program in Animal Biology, Institute of Biological Sciences, University of Brasília, Brasilia, Brazil
| | | | - Eduardo de Oliveira Melo
- Embrapa Cerrados/Center of Technology for Zebu Dairy Cows (CTZL), Brazilian Agricultural Research Corporation, Brasilia, Brazil
| | - Sônia Nair Báo
- Cell Biology Department, Institute of Biological Sciences, University of Brasília, Brasilia, Brazil
| | - Carlos Frederico Martins
- Embrapa Cerrados/Center of Technology for Zebu Dairy Cows (CTZL), Brazilian Agricultural Research Corporation, Brasilia, Brazil
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Fang Y, Xia W, Cai W, Zhang X, Zhang J, Fu X, Li S, Fang X, Sun S, Wang Z, Zhang X, Zhu S, Li J. Effects of TLR4 overexpression on sperm quality, seminal plasma biomarkers, sperm DNA methylation and pregnancy rate in sheep. Theriogenology 2019; 142:368-375. [PMID: 31711688 DOI: 10.1016/j.theriogenology.2019.10.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 10/04/2019] [Accepted: 10/09/2019] [Indexed: 11/28/2022]
Abstract
Genetic modification provides a means to enhancing disease resistance in animals. In this study, the first generation of genetically modified (GM) sheep overexpressing TLR4 was produced by microinjection for better disease resistance. To compare semen characteristics including sperm quality, seminal plasma biochemical index, sperm DNA methylation and pregnancy rate of three-year old transgenic sheep with TLR4 overexpressed (toll like receptor 4, TLR4) and non-transgenic ram. Sixteen transgenic ram of F0 generation were produced by microinjection of the TLR4 plasmid into the pronucleus of fertilized ova. Seven transgenic sheep of F1 generation was produced by breeding F0 transgenic founders with non-transgenic sheep of the same breed. There were no significant differences between transgenic and control rams for all semen quality parameters, including semen volume, sperm concentration, sperm viability, and percentages of sperm with an intact plasma membrane, acrosomal integrity, and viable sperm with high mitochondrial membrane potential in both F0 and F1 generation. Furthermore, no significant differences were found for seminal plasma concentrations of zinc, neutral alpha-glucosidase, acid phosphatase or fructose, nor for levels of H19 and IGF2R methylation in sperm DNA. In addition, pregnancy rate was also similar between these two groups. In conclusion, there was no evidence that TLR4 overexpression altered the sperm quality, seminal plasma or sperm DNA of transgenic sheep.
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Affiliation(s)
- Yi Fang
- College of Animal Science and Technology, Hebei Agricultural University, Baoding, China; College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China; Jilin Provincial Key Laboratory of Grassland Farming, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, Jilin, 130062, China
| | - Wei Xia
- College of Life Science and Technology, Southwest Minzu University, Chengdu, China
| | - Wentao Cai
- College of Animal Science and Technology, Hebei Agricultural University, Baoding, China
| | - Xiaosheng Zhang
- Animal Husbandry and Veterinary Research Institute of Tianjin, Tianjin, China
| | - Jinlong Zhang
- Animal Husbandry and Veterinary Research Institute of Tianjin, Tianjin, China
| | - Xiangwei Fu
- College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Sa Li
- College of Animal Science and Technology, Hebei Agricultural University, Baoding, China
| | - Xiaohuan Fang
- College of Animal Science and Technology, Hebei Agricultural University, Baoding, China
| | - Shuchun Sun
- College of Animal Science and Technology, Hebei Agricultural University, Baoding, China; Research Center of Cattle and Sheep Embryo Engineering Technique of Hebei Province, Baoding, China
| | - Zhigang Wang
- College of Animal Science and Technology, Hebei Agricultural University, Baoding, China; Research Center of Cattle and Sheep Embryo Engineering Technique of Hebei Province, Baoding, China
| | - Xiaolei Zhang
- College of Life Science and Technology, Southwest Minzu University, Chengdu, China
| | - Shien Zhu
- College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China.
| | - Junjie Li
- College of Animal Science and Technology, Hebei Agricultural University, Baoding, China; Research Center of Cattle and Sheep Embryo Engineering Technique of Hebei Province, Baoding, China.
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6
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Yang M, Perisse I, Fan Z, Regouski M, Meyer-Ficca M, Polejaeva IA. Increased pregnancy losses following serial somatic cell nuclear transfer in goats. Reprod Fertil Dev 2019; 30:1443-1453. [PMID: 29769162 DOI: 10.1071/rd17323] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Accepted: 04/09/2018] [Indexed: 12/26/2022] Open
Abstract
Serial cloning by somatic cell nuclear transfer (SCNT) is a critical tool for the expansion of precious transgenic lines or resetting the lifespan of primary transgenic cells for multiple genetic modifications. We successfully produced second-generation cloned goats using donor neonatal fibroblasts from first-generation clones. However, our attempts to produce any third-generation clones failed. SCNT efficiency decreased progressively with the clonal generations. The rate of pregnancy loss was significantly greater in recloning groups (P<0.05). While no pregnancy loss was observed during the first round of SCNT, 14 out of 21 pregnancies aborted in the second round of SCNT and all pregnancies aborted in the third round of SCNT. In this retrospective study, we also investigated the expression of 21 developmentally important genes in muscle tissue of cloned (G1) and recloned (G2) offspring. The expression of most of these genes in live clones was found to be largely comparable to naturally reproduced control goats, but fibroblast growth factor 10 (FGF10), methyl CpG binding protein 2 (MECP2) and growth factor receptor bound protein 10 (GRB10) were differentially expressed (P<0.05) in G2 goats compared with G1 and controls. To study the effects of serial cloning on DNA methylation, the methylation pattern of differentially methylated regions in imprinted genes H19 and insulin like growth factor 2 receptor (IGF2R) were also analysed. Aberrant H19 DNA methylation patterns were detected in G1 and G2 clones.
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Affiliation(s)
- Min Yang
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, UT 84322-4815, USA
| | - Iuri Perisse
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, UT 84322-4815, USA
| | - Zhiqiang Fan
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, UT 84322-4815, USA
| | - Misha Regouski
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, UT 84322-4815, USA
| | - Mirella Meyer-Ficca
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, UT 84322-4815, USA
| | - Irina A Polejaeva
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, UT 84322-4815, USA
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7
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Wan Y, Deng M, Zhang G, Ren C, Liu Z, Wang F. Analysis of H19/Igf2 Methylation Status in the Sperm of Cloned Goats and Their Offspring. Cell Reprogram 2018; 20:66-75. [DOI: 10.1089/cell.2017.0029] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Affiliation(s)
- Yongjie Wan
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Mingtian Deng
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Guomin Zhang
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Caifang Ren
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Zifei Liu
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Feng Wang
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
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Zhang YL, Zhang GM, Jia RX, Wan YJ, Yang H, Sun LW, Han L, Wang F. Non-invasive assessment of culture media from goat cloned embryos associated with subjective morphology by gas chromatography - mass spectroscopy-based metabolomic analysis. Anim Sci J 2017; 89:31-41. [PMID: 28833899 DOI: 10.1111/asj.12885] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2017] [Accepted: 06/21/2017] [Indexed: 12/29/2022]
Abstract
Pre-implantation embryo metabolism demonstrates distinctive characteristics associated with the development potential of embryos. We aim to determine if metabolic differences correlate with embryo morphology. In this study, gas chromatography - mass spectroscopy (GC-MS)-based metabolomics was used to assess the culture media of goat cloned embryos collected from high-quality (HQ) and low-quality (LQ) groups based on morphology. Expression levels of amino acid transport genes were further examined by quantitative real-time PCR. Results showed that the HQ group presented higher percentages of blastocysts compared with the LQ counterparts (P < 0.05). Metabolic differences were also present between HQ and LQ groups. The culture media of the HQ group showed lower levels of valin, lysine, glutamine, mannose and acetol, and higher levels of glucose, phytosphingosine and phosphate than those of the LQ group. Additionally, expression levels of amino acid transport genes SLC1A5 and SLC3A2 were significantly lower in the HQ group than the LQ group (P < 0.05, respectively). To our knowledge, this is the first report which uses GC-MS to detect metabolic differences in goat cloned embryo culture media. The biochemical profiles may help to select the most in vitro viable embryos.
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Affiliation(s)
- Yan-Li Zhang
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science, Nanjing Agricultural University, Nanjing, China
| | - Guo-Min Zhang
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science, Nanjing Agricultural University, Nanjing, China
| | - Ruo-Xin Jia
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science, Nanjing Agricultural University, Nanjing, China
| | - Yong-Jie Wan
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science, Nanjing Agricultural University, Nanjing, China
| | - Hua Yang
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science, Nanjing Agricultural University, Nanjing, China
| | - Ling-Wei Sun
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science, Nanjing Agricultural University, Nanjing, China
| | - Le Han
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science, Nanjing Agricultural University, Nanjing, China
| | - Feng Wang
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science, Nanjing Agricultural University, Nanjing, China
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Deng M, Ren C, Liu Z, Zhang G, Wang F, Wan Y. Epigenetic Status of H19-Igf2 Imprinted Genes and Loss of 5-Hydroxymethylcytosine in the Brain of Cloned Goats. Cell Reprogram 2017; 19:199-207. [PMID: 28350187 DOI: 10.1089/cell.2016.0049] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
In mammals, the imprinted genes play vital roles in development and are generally controlled by DNA methylation at imprinting control regions (ICRs). Recently, it was discovered that 5-hydroxymethylcytosine (5-hmC) is a stable epigenetic modification; however, its functions in cloned animal genomes have not yet been fully elucidated. In this study, we interrogated and quantified the 5-hmC levels in the brain of cloned goats and discovered upregulation of Uhrf1 (p < 0.001), Dnmt1 (p < 0.05), Dnmt3a (p < 0.05), Igf2 (p < 0.01), and H19 (p < 0.05) and downregulation of Dnmt3b (p < 0.001), Tet1 (p < 0.001), Tet2 (p < 0.05), Tet3 (p < 0.001), Mecp2 (p < 0.05), and Igf2r (p < 0.05) in deceased cloned goat tissues compared with the normal controls. We demonstrated that DNA methylation was increased at H19 ICR (51.33% ± 2.03% vs. 93.07% ± 3.06%; p < 0.01) and that DNA was hypomethylated at Igf2 ICR (4.57% ± 1.48% vs. 7.63% ± 1.83%; p > 0.05) in the brain of deceased cloned goats. Finally, we showed that within the cloned goat brain genome, the amount of genome-wide 5-hmC was significantly decreased (0.083% ± 0.026% vs. 0.024% ± 0.007%; p < 0.05), whereas the 5-hmC levels within H19 and Igf2 CCGG sites were not significantly altered (0.17% ± 0.09% vs. 0.03% ± 0.01%; p > 0.05) in the brain of deceased cloned goats. Our data bring further experimental evidence regarding the abnormalities in 5-hmC and advance our current understanding of the role of 5-hmC in cloned animals.
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Affiliation(s)
- Mingtian Deng
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University , Nanjing, China
| | - Caifang Ren
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University , Nanjing, China
| | - Zifei Liu
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University , Nanjing, China
| | - Guomin Zhang
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University , Nanjing, China
| | - Feng Wang
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University , Nanjing, China
| | - Yongjie Wan
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University , Nanjing, China
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Wang X, Wang X, Hao Y, Teng D, Wang J. Research and development on lactoferrin and its derivatives in China from 2011–2015. Biochem Cell Biol 2017; 95:162-170. [DOI: 10.1139/bcb-2016-0073] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Lactoferrin (Lf), a multifunctional glycoprotein, is an important antimicrobial and immune regulatory protein present in neutrophils and most exocrine secretions of mammals. Lactoferricin (Lfcin) is located in the N-terminal region of this protein. In this review, the current state of research into Lf and Lfcin in China is described. Searching with HistCite software in Web Sci located 118 papers published by Chinese researchers from 2011–2015, making China one of the top 3 producers of Lf research and development in the world. The biological functions of Lf and Lfcin are discussed, including antibacterial, antiviral, antifungal, anticarcinogenic, and anti-inflammatory activities; targeted drug delivery, induction of neurocyte, osteoblast, and tenocyte growth, and possible mechanisms of action. The preparation and heterologous expression of Lf in animals, bacteria, and yeast are discussed in detail. Five Lf-related food additive factories and 9 Lf-related health food production companies are certified by the China Food and Drug Administration (CFDA). The latest progress in the generation of transgenic livestock in China, the safety of the use of transgenic animals, and future prospects for the uses of Lf and Lfcin are also covered.
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Affiliation(s)
- Xiao Wang
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture, Beijing 100081, P.R. China
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, P.R. China
| | - Xiumin Wang
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture, Beijing 100081, P.R. China
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, P.R. China
| | - Ya Hao
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture, Beijing 100081, P.R. China
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, P.R. China
| | - Da Teng
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture, Beijing 100081, P.R. China
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, P.R. China
| | - Jianhua Wang
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture, Beijing 100081, P.R. China
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, P.R. China
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11
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Kaiser GG, Mucci NC, González V, Sánchez L, Parrón JA, Pérez MD, Calvo M, Aller JF, Hozbor FA, Mutto AA. Detection of recombinant human lactoferrin and lysozyme produced in a bitransgenic cow. J Dairy Sci 2017; 100:1605-1617. [PMID: 28109583 DOI: 10.3168/jds.2016-11173] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Accepted: 10/07/2016] [Indexed: 02/02/2023]
Abstract
Lactoferrin and lysozyme are 2 glycoproteins with great antimicrobial activity, being part of the nonspecific defensive system of human milk, though their use in commercial products is difficult because human milk is a limited source. Therefore, many investigations have been carried out to produce those proteins in biological systems, such as bacteria, yeasts, or plants. Mammals seem to be more suitable as expression systems for human proteins, however, especially for those that are glycosylated. In the present study, we developed a bicistronic commercial vector containing a goat β-casein promoter and an internal ribosome entry site fragment between the human lactoferrin and human lysozyme genes to allow the introduction of both genes into bovine adult fibroblasts in a single transfection. Embryos were obtained by somatic cell nuclear transfer, and, after 6 transferences to recipients, 3 pregnancies and 1 viable bitransgenic calf were obtained. The presence of the vector was confirmed by fluorescent in situ hybridization of skin cells. At 13 mo of life and after artificial induction of lactation, both recombinant proteins were found in the colostrum and milk of the bitransgenic calf. Human lactoferrin concentration in the colostrum was 0.0098 mg/mL and that in milk was 0.011 mg/mL; human lysozyme concentration in the colostrum was 0.0022 mg/mL and that in milk was 0.0024 mg/mL. The molar concentration of both human proteins revealed no differences in protein production of the internal ribosome entry site upstream and downstream protein. The enzymatic activity of lysozyme in the transgenic milk was comparable to that of human milk, being 6 and 10 times higher than that of bovine lysozyme present in milk. This work represents an important step to obtain multiple proteins or enhance single protein production by using animal pharming and fewer regulatory and antibiotic-resistant foreign sequences, allowing the design of humanized milk with added biological value for newborn nutrition and development. Transgenic animals can offer a unique opportunity to the dairy industry, providing starting materials suitable to develop specific products with high added value.
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Affiliation(s)
- Germán G Kaiser
- Grupo de Biotecnología de la Reproducción, Instituto Nacional de Tecnología Agropecuaria, 7620 Balcarce, Argentina.
| | - Nicolás C Mucci
- Grupo de Biotecnología de la Reproducción, Instituto Nacional de Tecnología Agropecuaria, 7620 Balcarce, Argentina
| | - Vega González
- Tecnología de los Alimentos, Facultad de Veterinaria, Universidad de Zaragoza, 50013 Zaragoza, Spain
| | - Lourdes Sánchez
- Tecnología de los Alimentos, Facultad de Veterinaria, Universidad de Zaragoza, 50013 Zaragoza, Spain
| | - José A Parrón
- Tecnología de los Alimentos, Facultad de Veterinaria, Universidad de Zaragoza, 50013 Zaragoza, Spain
| | - María D Pérez
- Tecnología de los Alimentos, Facultad de Veterinaria, Universidad de Zaragoza, 50013 Zaragoza, Spain
| | - Miguel Calvo
- Tecnología de los Alimentos, Facultad de Veterinaria, Universidad de Zaragoza, 50013 Zaragoza, Spain
| | - Juan F Aller
- Grupo de Biotecnología de la Reproducción, Instituto Nacional de Tecnología Agropecuaria, 7620 Balcarce, Argentina
| | - Federico A Hozbor
- Grupo de Biotecnología de la Reproducción, Instituto Nacional de Tecnología Agropecuaria, 7620 Balcarce, Argentina
| | - Adrián A Mutto
- Laboratorio Biotecnologías Aplicadas a la Reproducción y Mejoramiento Genético Animal, Instituto de Investigaciones Biotechnològicas-Instituto Tecnològico Chascomùs (IIB-INTECH), Universidad Nacional de San Martin-Consejo de Investigaciones Cientìficas y Tècnicas (CONICET), 1650 San Martin, Argentina
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12
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Polejaeva IA, Rutigliano HM, Wells KD. Livestock in biomedical research: history, current status and future prospective. Reprod Fertil Dev 2017; 28:112-24. [PMID: 27062879 DOI: 10.1071/rd15343] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Livestock models have contributed significantly to biomedical and surgical advances. Their contribution is particularly prominent in the areas of physiology and assisted reproductive technologies, including understanding developmental processes and disorders, from ancient to modern times. Over the past 25 years, biomedical research that traditionally embraced a diverse species approach shifted to a small number of model species (e.g. mice and rats). The initial reasons for focusing the main efforts on the mouse were the availability of murine embryonic stem cells (ESCs) and genome sequence data. This powerful combination allowed for precise manipulation of the mouse genome (knockouts, knockins, transcriptional switches etc.) leading to ground-breaking discoveries on gene functions and regulation, and their role in health and disease. Despite the enormous contribution to biomedical research, mouse models have some major limitations. Their substantial differences compared with humans in body and organ size, lifespan and inbreeding result in pronounced metabolic, physiological and behavioural differences. Comparative studies of strategically chosen domestic species can complement mouse research and yield more rigorous findings. Because genome sequence and gene manipulation tools are now available for farm animals (cattle, pigs, sheep and goats), a larger number of livestock genetically engineered (GE) models will be accessible for biomedical research. This paper discusses the use of cattle, goats, sheep and pigs in biomedical research, provides an overview of transgenic technology in farm animals and highlights some of the beneficial characteristics of large animal models of human disease compared with the mouse. In addition, status and origin of current regulation of GE biomedical models is also reviewed.
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Affiliation(s)
- Irina A Polejaeva
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, UT 84322, USA
| | - Heloisa M Rutigliano
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, UT 84322, USA
| | - Kevin D Wells
- Division of Animal Sciences, Animal Sciences Research Center, University of Missouri, Columbia, MO 65211, USA
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13
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Yuan YG, Song SZ, Zhu MM, He ZY, Lu R, Zhang T, Mi F, Wang JY, Cheng Y. Human lactoferrin efficiently targeted into caprine beta-lactoglobulin locus with transcription activator-like effector nucleases. ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES 2016; 30:1175-1182. [PMID: 28002927 PMCID: PMC5494492 DOI: 10.5713/ajas.16.0697] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Revised: 11/11/2016] [Accepted: 12/13/2016] [Indexed: 02/06/2023]
Abstract
Objective To create genetically modified goat as a biopharming source of recombinant human lacotoferrin (hLF) with transcription activator-like effector nucleases. Methods TALENs and targeting vector were transferred into cultured fibroblasts to insert hLF cDNA in the goat beta-lactoglobulin (BLG) locus with homology-directed repair. The gene targeted efficiency was checked using sequencing and TE7I assay. The bi-allelic gene targeted colonies were isolated and confirmed with polymerase chain reaction, and used as donor cells for somatic cell nuclear transfer (SCNT). Results The targeted efficiency for BLG gene was approximately 10%. Among 12 Bi-allelic gene targeted colonies, five were used in first round SCNT and 4 recipients (23%) were confirmed pregnant at 30 d. In second round SCNT, 7 (53%), 4 (31%), and 3 (23%) recipients were confirmed to be pregnant by ultrasound on 30 d, 60 d, and 90 d. Conclusion This finding signifies the combined use of TALENs and SCNT can generate bi-allelic knock-in fibroblasts that can be cloned in a fetus. Therefore, it might lay the foundation for transgenic hLF goat generation and possible use of their mammary gland as a bioreactor for large-scale production of recombinant hLF.
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Affiliation(s)
- Yu-Guo Yuan
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis/College of animal science and technology, Yangzhou University, Yangzhou, Jiangsu 225009, China.,Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou, 225001, China
| | - Shao-Zheng Song
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis/College of animal science and technology, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Meng-Ming Zhu
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis/College of animal science and technology, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Zheng-Yi He
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis/College of animal science and technology, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Rui Lu
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis/College of animal science and technology, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Ting Zhang
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis/College of animal science and technology, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Fei Mi
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis/College of animal science and technology, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Jin-Yu Wang
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis/College of animal science and technology, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Yong Cheng
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis/College of animal science and technology, Yangzhou University, Yangzhou, Jiangsu 225009, China.,Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou, 225001, China
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14
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Martins LT, Neto SG, Tavares KCS, Calderón CEM, Aguiar LH, Lazzarotto CR, Ongaratto FL, Rodrigues VHV, Carneiro IDS, Rossetto R, Almeida AP, Fernandes CCL, Rondina D, Dias ACO, Chies JM, Polejaeva IA, Rodrigues JL, Forell F, Bertolini LR, Bertolini M. Developmental Outcome and Related Abnormalities in Goats: Comparison Between Somatic Cell Nuclear Transfer- and In Vivo-Derived Concepti During Pregnancy Through Term. Cell Reprogram 2016; 18:264-79. [PMID: 27362734 DOI: 10.1089/cell.2015.0082] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Cloning by somatic cell nuclear transfer (SCNT) is characterized by low efficiency and the occurrence of developmental abnormalities, which are rather poorly studied phenomena in goats. This study aimed at comparing overall SCNT efficiency in goats by using in vitro-matured (IVM) or in vivo-matured oocytes and fibroblast donor cells (mock transfected, transgenic, or wild type), also characterizing symptoms of the Abnormal Offspring Syndrome (AOS) in development, comparing results with pregnancies produced by artificial insemination (AI) and in vivo-derived (IVD) embryos. The SCNT group had lower pregnancy rate (18.3%, 11/60), total number of concepti (20.0%, 12/60), term births (3.3%, 2/60), and live births (1.7%, 1/60) than both the IVD (77.8%, 7/9; 155.5%, 14/9; 122.2%, 11/9; 88.8%, 8/9) and the AI (71.4%, 10/14; 121.4%, 17/14; 100%, 14/14; 78.5%, 11/14) groups, respectively (p < 0.05). No SCNT pregnancies reached term using IVM oocytes, but in vivo-matured oocytes resulted in two term transgenic cloned kids. The proportion fetal membrane (FM) weight/birth weight reflected an increase in FM size and cotyledonary enlargement in clones, for disproportionally bigger newborns in relation to cotyledonary numbers. Overall, goat cloning showed losses and abnormality patterns similar to the AOS in cloned cattle and sheep, which have not been previously well recognized in goats.
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Affiliation(s)
| | | | | | | | | | | | - Felipe Ledur Ongaratto
- 1 University of Fortaleza (UNIFOR) , Fortaleza, Brazil .,2 Federal University of Rio Grande do Sul (UFRGS) , Porto Alegre, Brazil
| | | | | | - Rafael Rossetto
- 1 University of Fortaleza (UNIFOR) , Fortaleza, Brazil .,3 Ceará State University (UECE) , Fortaleza, Brazil
| | - Anderson Pinto Almeida
- 1 University of Fortaleza (UNIFOR) , Fortaleza, Brazil .,3 Ceará State University (UECE) , Fortaleza, Brazil
| | | | | | | | | | - Irina A Polejaeva
- 5 Department of Animal, Dairy and Veterinary Sciences, Utah State University , Logan, Utah, USA
| | | | - Fabiana Forell
- 6 Santa Catarina State University (UDESC) , Lages, Brazil
| | - Luciana Relly Bertolini
- 1 University of Fortaleza (UNIFOR) , Fortaleza, Brazil .,7 Pontificial Catholic University of Rio Grande do Sul (PUCRS) , Porto Alegre, Brazil
| | - Marcelo Bertolini
- 1 University of Fortaleza (UNIFOR) , Fortaleza, Brazil .,2 Federal University of Rio Grande do Sul (UFRGS) , Porto Alegre, Brazil
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15
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Bertolini LR, Meade H, Lazzarotto CR, Martins LT, Tavares KC, Bertolini M, Murray JD. The transgenic animal platform for biopharmaceutical production. Transgenic Res 2016; 25:329-43. [PMID: 26820414 DOI: 10.1007/s11248-016-9933-9] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Accepted: 01/06/2016] [Indexed: 12/26/2022]
Abstract
The recombinant production of therapeutic proteins for human diseases is currently the largest source of innovation in the pharmaceutical industry. The market growth has been the driving force on efforts for the development of new therapeutic proteins, in which transgenesis emerges as key component. The use of the transgenic animal platform offers attractive possibilities, residing on the low production costs allied to high productivity and quality of the recombinant proteins. Although many strategies have evolved over the past decades for the generation of transgenic founders, transgenesis in livestock animals generally faces some challenges, mainly due to random transgene integration and control over transgene copy number. But new developments in gene editing with CRISPR/Cas system promises to revolutionize the field for its simplicity and high efficiency. In addition, for the final approval of any given recombinant protein for animal or human use, the production and characterization of bioreactor founders and expression patterns and functionality of the proteins are technical part of the process, which also requires regulatory and administrative decisions, with a large emphasis on biosafety. The approval of two mammary gland-derived recombinant proteins for commercial and clinical use has boosted the interest for more efficient, safer and economic ways to generate transgenic founders to meet the increasing demand for biomedical proteins worldwide.
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Affiliation(s)
- L R Bertolini
- Department of Pharmacology, Pontifical Catholic University of Rio Grande do Sul (PUC/RS), Porto Alegre, RS, Brazil.
- Molecular and Developmental Biology Lab, Health Sciences Center, University of Fortaleza (UNIFOR), Fortaleza, CE, Brazil.
| | - H Meade
- LFB, USA, Framingham, MA, USA
| | - C R Lazzarotto
- Molecular and Developmental Biology Lab, Health Sciences Center, University of Fortaleza (UNIFOR), Fortaleza, CE, Brazil
| | - L T Martins
- Molecular and Developmental Biology Lab, Health Sciences Center, University of Fortaleza (UNIFOR), Fortaleza, CE, Brazil
| | - K C Tavares
- Molecular and Developmental Biology Lab, Health Sciences Center, University of Fortaleza (UNIFOR), Fortaleza, CE, Brazil
| | - M Bertolini
- Molecular and Developmental Biology Lab, Health Sciences Center, University of Fortaleza (UNIFOR), Fortaleza, CE, Brazil
- Embryology and Reproductive Biotechnology Lab, School of Veterinary Medicine, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - J D Murray
- Transgenics Lab, Department of Animal Science, University of California, Davis (UC Davis), Davis, CA, USA
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16
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Wan Y, Deng M, Zhang G, Ren C, Zhang H, Zhang Y, Wang L, Wang F. Abnormal expression of DNA methyltransferases and genomic imprinting in cloned goat fibroblasts. Cell Biol Int 2015; 40:74-82. [DOI: 10.1002/cbin.10540] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Revised: 08/16/2015] [Accepted: 08/22/2015] [Indexed: 01/03/2023]
Affiliation(s)
- Yongjie Wan
- Jiangsu Livestock Embryo Engineering Laboratory; College of Animal Science and Technology; Nanjing Agricultural University; Nanjing 210095 China
| | - Mingtian Deng
- Jiangsu Livestock Embryo Engineering Laboratory; College of Animal Science and Technology; Nanjing Agricultural University; Nanjing 210095 China
| | - Guomin Zhang
- Jiangsu Livestock Embryo Engineering Laboratory; College of Animal Science and Technology; Nanjing Agricultural University; Nanjing 210095 China
| | - Caifang Ren
- Jiangsu Livestock Embryo Engineering Laboratory; College of Animal Science and Technology; Nanjing Agricultural University; Nanjing 210095 China
| | - Hao Zhang
- Jiangsu Livestock Embryo Engineering Laboratory; College of Animal Science and Technology; Nanjing Agricultural University; Nanjing 210095 China
| | - Yanli Zhang
- Jiangsu Livestock Embryo Engineering Laboratory; College of Animal Science and Technology; Nanjing Agricultural University; Nanjing 210095 China
| | - Lizhong Wang
- Jiangsu Livestock Embryo Engineering Laboratory; College of Animal Science and Technology; Nanjing Agricultural University; Nanjing 210095 China
| | - Feng Wang
- Jiangsu Livestock Embryo Engineering Laboratory; College of Animal Science and Technology; Nanjing Agricultural University; Nanjing 210095 China
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17
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Wang L, Ren C, You J, Fan Y, Wan Y, Zhang Y, Wang F, Huang M. A novel fluorescence reporter system for the characterization of dairy goat mammary epithelial cells. Biochem Biophys Res Commun 2015; 458:783-9. [DOI: 10.1016/j.bbrc.2015.02.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Accepted: 02/04/2015] [Indexed: 12/30/2022]
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18
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Ni W, Qiao J, Hu S, Zhao X, Regouski M, Yang M, Polejaeva IA, Chen C. Efficient gene knockout in goats using CRISPR/Cas9 system. PLoS One 2014; 9:e106718. [PMID: 25188313 PMCID: PMC4154755 DOI: 10.1371/journal.pone.0106718] [Citation(s) in RCA: 168] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2014] [Accepted: 08/10/2014] [Indexed: 11/19/2022] Open
Abstract
The CRISPR/Cas9 system has been adapted as an efficient genome editing tool in laboratory animals such as mice, rats, zebrafish and pigs. Here, we report that CRISPR/Cas9 mediated approach can efficiently induce monoallelic and biallelic gene knockout in goat primary fibroblasts. Four genes were disrupted simultaneously in goat fibroblasts by CRISPR/Cas9-mediated genome editing. The single-gene knockout fibroblasts were successfully used for somatic cell nuclear transfer (SCNT) and resulted in live-born goats harboring biallelic mutations. The CRISPR/Cas9 system represents a highly effective and facile platform for targeted editing of large animal genomes, which can be broadly applied to both biomedical and agricultural applications.
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Affiliation(s)
- Wei Ni
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, China
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, Utah, United States of America
| | - Jun Qiao
- College of Animal Science and Technology, Shihezi University, Shihezi, Xinjiang, China
| | - Shengwei Hu
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, Utah, United States of America
- * E-mail: (SH); (IP); (CC)
| | - Xinxia Zhao
- College of Animal Science and Technology, Shihezi University, Shihezi, Xinjiang, China
| | - Misha Regouski
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, Utah, United States of America
| | - Min Yang
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, Utah, United States of America
| | - Irina A. Polejaeva
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, Utah, United States of America
- * E-mail: (SH); (IP); (CC)
| | - Chuangfu Chen
- College of Animal Science and Technology, Shihezi University, Shihezi, Xinjiang, China
- * E-mail: (SH); (IP); (CC)
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19
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Wang L, You J, Zhong B, Ren C, Zhang Y, Li M, Zhang G, Jia R, Ying S, Wang F. Scd1 mammary-specific vector constructed and overexpressed in goat fibroblast cells resulting in an increase of palmitoleic acid and oleic acid. Biochem Biophys Res Commun 2013; 443:389-94. [PMID: 24309099 DOI: 10.1016/j.bbrc.2013.11.091] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2013] [Accepted: 11/22/2013] [Indexed: 11/29/2022]
Abstract
Stearoyl-CoA desaturase-1 (Scd1) is a rate-limiting enzyme in the biosynthesis of monounsaturated fatty acids. Overexpression of Scd1 in transgenic animals would modify the nutritional value of ruminant-derived foods by increasing the monounsaturated fatty acid (MUFA) and decreasing the saturated fatty acid (SFA) content. The aim of this study was to develop an effective Scd1 vector that is specifically expressed in dairy goat mammary glands. We successfully amplified the goat full length Scd1 cDNA and evaluated its activity in goat ear skin-derived fibroblast cells (GEFCs) by lipid analysis. In addition, we constructed a mammary gland-specific expression vector and confirmed efficient expression of Scd1 in goat mammary epithelial cells (GMECs) by qRT-PCR and Western blot analysis. Fatty acid analysis showed that Scd1-overexpression resulted in an increase in levels of palmitoleic acid (16:1n-7) and oleic acid (18:1n-9), from 1.73 ± 0.02% to 2.54 ± 0.02% and from 27.25 ± 0.13% to 30.37 ± 0.04%, respectively (both p<0.01) and the ratio of MUFA to SFA was increased. This work lays a foundation for the generation of Scd1 transgenic goats.
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Affiliation(s)
- Lizhong Wang
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing 210095, China.
| | - Jihao You
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing 210095, China.
| | - Bushuai Zhong
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing 210095, China.
| | - Caifang Ren
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing 210095, China.
| | - Yanli Zhang
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing 210095, China.
| | - Meng Li
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing 210095, China.
| | - Guomin Zhang
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing 210095, China.
| | - Ruoxin Jia
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing 210095, China.
| | - Shijia Ying
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing 210095, China.
| | - Feng Wang
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing 210095, China.
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