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Park HS, Kwon H, Yu J, Bae Y, Park JY, Choi KA, Choi Y, Hong S. Precise nanoinjection delivery of plasmid DNA into a single fibroblast for direct conversion of astrocyte. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2018; 46:1114-1122. [PMID: 29506416 DOI: 10.1080/21691401.2018.1446019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Direct conversion is a powerful approach to safely generate mature neural lineages with potential for treatment of neurological disorders. Astrocytes play a crucial role in neuronal homeostasis and their dysfunctions contribute to several neurodegenerative diseases. Using a single-cell approach for precision, we describe here a robust method using optimized DNA amounts for the direct conversion of mouse fibroblasts to astrocytes. Controlled amount of the reprogramming factors Oct4, Sox2, Klf4 and cMyc was directly delivered into a single fibroblast cell. Consequently, 2500 DNA molecules, no more or less, were found to be the optimal amount that dramatically increased the expression levels of the astrocyte-specific markers GFAP and S100b and the demethylation gene TET1, the expression of which was sustained to maintain astrocyte functionality. The converted astrocytes showed glutamate uptake ability and electrophysiological activity. Furthermore, we demonstrated a potential mechanism whereby fibroblast was directly converted into astrocyte at a single-cell level; this was achieved by activating BMP2 pathway through direct binding of Sox2 protein to BMP2 gene. This study suggests that nanotechnology for directly injecting plasmid DNAs into cell nuclei may help understand such a conversion at single-cell level.
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Affiliation(s)
- Hang-Soo Park
- a Department of Integrated Biomedical and Life Science , Korea University , Seoul , Republic of Korea
| | - Hyosung Kwon
- b Department of Bio-convergence Engineering , Korea University , Seoul , Republic of Korea
| | - Jewon Yu
- b Department of Bio-convergence Engineering , Korea University , Seoul , Republic of Korea
| | - Yeonju Bae
- a Department of Integrated Biomedical and Life Science , Korea University , Seoul , Republic of Korea
| | - Jae-Yong Park
- a Department of Integrated Biomedical and Life Science , Korea University , Seoul , Republic of Korea.,c School of Biosystem and Biomedical Science , Korea University , Seoul , Republic of Korea
| | - Kyung-Ah Choi
- c School of Biosystem and Biomedical Science , Korea University , Seoul , Republic of Korea
| | - Yeonho Choi
- b Department of Bio-convergence Engineering , Korea University , Seoul , Republic of Korea.,d School of Biomedical Engineering , Korea University , Seoul , Republic of Korea
| | - Sunghoi Hong
- a Department of Integrated Biomedical and Life Science , Korea University , Seoul , Republic of Korea.,c School of Biosystem and Biomedical Science , Korea University , Seoul , Republic of Korea
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Liu Y, Wang H, Lu J, Miao Y, Cao X, Zhang L, Wu X, Wu F, Ding B, Wang R, Luo M, Li W, Tan J. Rex Rabbit Somatic Cell Nuclear Transfer with In Vitro-Matured Oocytes. Cell Reprogram 2016; 18:187-94. [PMID: 27159389 DOI: 10.1089/cell.2015.0086] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Somatic cell nuclear transfer (SCNT) requires large numbers of matured oocytes. In vitro-matured (IVM) oocytes have been used in SCNT in many animals. We investigated the use of IVM oocytes in Rex rabbit SCNT using Rex rabbit ovaries obtained from a local abattoir. The meiotic ability of oocytes isolated from follicles of different diameters was studied. Rex rabbit SCNT was optimized for denucleation, activation, and donor cell synchronization. Rex rabbit oocytes grew to the largest diameter (110 μm) when the follicle diameter was 1.0 mm. Oocytes isolated from <0.5-mm follicles lacked the ability to resume meiosis. More than 90% of these oocytes remained in the germinal vesicle (GV) stage after in vitro culture (IVC) for 18 h. Oocytes isolated from >0.7-mm follicles acquired maturation ability. More than 90% of these oocytes matured after IVC for 18 h. The developmental potential of oocytes isolated from >1-mm follicles was greater than that of oocytes isolated from 0.7- to 1.0-mm follicles. The highest activation rates for IVM Rex rabbit oocytes were seen after treatment with 2.5 μM ionomycin for 5 min followed by 2 mM 6-dimethylaminopurine (6-DMAP) and 5 μg/mL cycloheximide (CHX) for 1 h. Ionomycin induced the chromatin of IVM oocytes to protrude from the oocyte surface, promoting denucleation. Fetal fibroblast cells (FFCs) and cumulus cells (CCs) were more suitable for Rex rabbit SCNT than skin fibroblast cells (SFCs) (blastocyst rate was 35.6 ± 2.2% and 38.0 ± 6.0% vs. 19.7 ± 3.1%). The best fusion condition was a 2DC interval for 1 sec, 1.6 kV/cm voltages, and 40 μsec duration in 0.28 M mannitol. In conclusion, the in vitro maturation of Rex rabbit oocytes and SCNT procedures were studied systematically and optimized in this study.
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Affiliation(s)
- Yong Liu
- 1 Key Laboratory of Embryo Development and Reproductive Regulation of Anhui Province, College of Biological and Food Engineering, Fuyang Teachers College , Fuyang City, Anhui Province 236037, China
| | - Huili Wang
- 2 Laboratory for Animal Reproduction and Embryology, College of Animal Science and Veterinary Medicine, Shandong Agricultural University , Tai'an City, Shandong Province 271018, China
| | - Jinhua Lu
- 2 Laboratory for Animal Reproduction and Embryology, College of Animal Science and Veterinary Medicine, Shandong Agricultural University , Tai'an City, Shandong Province 271018, China
| | - Yiliang Miao
- 2 Laboratory for Animal Reproduction and Embryology, College of Animal Science and Veterinary Medicine, Shandong Agricultural University , Tai'an City, Shandong Province 271018, China
| | - Xinyan Cao
- 2 Laboratory for Animal Reproduction and Embryology, College of Animal Science and Veterinary Medicine, Shandong Agricultural University , Tai'an City, Shandong Province 271018, China
| | - Ling Zhang
- 1 Key Laboratory of Embryo Development and Reproductive Regulation of Anhui Province, College of Biological and Food Engineering, Fuyang Teachers College , Fuyang City, Anhui Province 236037, China
| | - Xiaoqing Wu
- 1 Key Laboratory of Embryo Development and Reproductive Regulation of Anhui Province, College of Biological and Food Engineering, Fuyang Teachers College , Fuyang City, Anhui Province 236037, China
| | - Fengrui Wu
- 1 Key Laboratory of Embryo Development and Reproductive Regulation of Anhui Province, College of Biological and Food Engineering, Fuyang Teachers College , Fuyang City, Anhui Province 236037, China
| | - Biao Ding
- 1 Key Laboratory of Embryo Development and Reproductive Regulation of Anhui Province, College of Biological and Food Engineering, Fuyang Teachers College , Fuyang City, Anhui Province 236037, China
| | - Rong Wang
- 1 Key Laboratory of Embryo Development and Reproductive Regulation of Anhui Province, College of Biological and Food Engineering, Fuyang Teachers College , Fuyang City, Anhui Province 236037, China
| | - Mingjiu Luo
- 2 Laboratory for Animal Reproduction and Embryology, College of Animal Science and Veterinary Medicine, Shandong Agricultural University , Tai'an City, Shandong Province 271018, China
| | - Wenyong Li
- 1 Key Laboratory of Embryo Development and Reproductive Regulation of Anhui Province, College of Biological and Food Engineering, Fuyang Teachers College , Fuyang City, Anhui Province 236037, China
| | - Jinghe Tan
- 2 Laboratory for Animal Reproduction and Embryology, College of Animal Science and Veterinary Medicine, Shandong Agricultural University , Tai'an City, Shandong Province 271018, China
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Greggains GD, Lister LM, Tuppen HAL, Zhang Q, Needham LH, Prathalingam N, Hyslop LA, Craven L, Polanski Z, Murdoch AP, Turnbull DM, Herbert M. Therapeutic potential of somatic cell nuclear transfer for degenerative disease caused by mitochondrial DNA mutations. Sci Rep 2014; 4:3844. [PMID: 24457623 PMCID: PMC5379195 DOI: 10.1038/srep03844] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2013] [Accepted: 12/24/2013] [Indexed: 01/16/2023] Open
Abstract
Induced pluripotent stem cells (iPSCs) hold much promise in the quest for personalised cell therapies. However, the persistence of founder cell mitochondrial DNA (mtDNA) mutations limits the potential of iPSCs in the development of treatments for mtDNA disease. This problem may be overcome by using oocytes containing healthy mtDNA, to induce somatic cell nuclear reprogramming. However, the extent to which somatic cell mtDNA persists following fusion with human oocytes is unknown. Here we show that human nuclear transfer (NT) embryos contain very low levels of somatic cell mtDNA. In light of a recent report that embryonic stem cells can be derived from human NT embryos, our results highlight the therapeutic potential of NT for mtDNA disease, and underscore the importance of using human oocytes to pursue this goal.
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Affiliation(s)
- Gareth D. Greggains
- Wellcome Centre for Mitochondrial Research, Institute for Ageing and Health, Newcastle University, Newcastle upon Tyne, UK
- Newcastle Fertility Centre, Centre for Life, Times Square, Newcastle upon Tyne, UK
- Department of Gynecology, Oslo University Hospital, Rikshospitalet, Oslo 0027, Norway
| | - Lisa M. Lister
- Wellcome Centre for Mitochondrial Research, Institute for Ageing and Health, Newcastle University, Newcastle upon Tyne, UK
- Newcastle Fertility Centre, Centre for Life, Times Square, Newcastle upon Tyne, UK
| | - Helen A. L. Tuppen
- Wellcome Centre for Mitochondrial Research, Institute for Ageing and Health, Newcastle University, Newcastle upon Tyne, UK
| | - Qi Zhang
- Wellcome Centre for Mitochondrial Research, Institute for Ageing and Health, Newcastle University, Newcastle upon Tyne, UK
- Newcastle Fertility Centre, Centre for Life, Times Square, Newcastle upon Tyne, UK
| | - Louise H. Needham
- Wellcome Centre for Mitochondrial Research, Institute for Ageing and Health, Newcastle University, Newcastle upon Tyne, UK
- Newcastle Fertility Centre, Centre for Life, Times Square, Newcastle upon Tyne, UK
| | - Nilendran Prathalingam
- Wellcome Centre for Mitochondrial Research, Institute for Ageing and Health, Newcastle University, Newcastle upon Tyne, UK
- Newcastle Fertility Centre, Centre for Life, Times Square, Newcastle upon Tyne, UK
| | - Louise A. Hyslop
- Wellcome Centre for Mitochondrial Research, Institute for Ageing and Health, Newcastle University, Newcastle upon Tyne, UK
- Newcastle Fertility Centre, Centre for Life, Times Square, Newcastle upon Tyne, UK
| | - Lyndsey Craven
- Wellcome Centre for Mitochondrial Research, Institute for Ageing and Health, Newcastle University, Newcastle upon Tyne, UK
| | - Zbigniew Polanski
- Department of Genetics and Evolution, Institute of Zoology, Jagiellonian University, ul. Gronostajowa 9, 30-387 Krakow, Poland
| | - Alison P. Murdoch
- Wellcome Centre for Mitochondrial Research, Institute for Ageing and Health, Newcastle University, Newcastle upon Tyne, UK
- Newcastle Fertility Centre, Centre for Life, Times Square, Newcastle upon Tyne, UK
| | - Douglass M. Turnbull
- Wellcome Centre for Mitochondrial Research, Institute for Ageing and Health, Newcastle University, Newcastle upon Tyne, UK
| | - Mary Herbert
- Wellcome Centre for Mitochondrial Research, Institute for Ageing and Health, Newcastle University, Newcastle upon Tyne, UK
- Newcastle Fertility Centre, Centre for Life, Times Square, Newcastle upon Tyne, UK
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