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Uno N, Takata S, Komoto S, Miyamoto H, Nakayama Y, Osaki M, Mayuzumi R, Miyazaki N, Hando C, Abe S, Sakuma T, Yamamoto T, Suzuki T, Nakajima Y, Oshimura M, Tomizuka K, Kazuki Y. Panel of human cell lines with human/mouse artificial chromosomes. Sci Rep 2022; 12:3009. [PMID: 35194085 PMCID: PMC8863800 DOI: 10.1038/s41598-022-06814-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 02/04/2022] [Indexed: 11/25/2022] Open
Abstract
Human artificial chromosomes (HACs) and mouse artificial chromosomes (MACs) are non-integrating chromosomal gene delivery vectors for molecular biology research. Recently, microcell-mediated chromosome transfer (MMCT) of HACs/MACs has been achieved in various human cells that include human immortalised mesenchymal stem cells (hiMSCs) and human induced pluripotent stem cells (hiPSCs). However, the conventional strategy of gene introduction with HACs/MACs requires laborious and time-consuming stepwise isolation of clones for gene loading into HACs/MACs in donor cell lines (CHO and A9) and then transferring the HAC/MAC into cells via MMCT. To overcome these limitations and accelerate chromosome vector-based functional assays in human cells, we established various human cell lines (HEK293, HT1080, hiMSCs, and hiPSCs) with HACs/MACs that harbour a gene-loading site via MMCT. Model genes, such as tdTomato, TagBFP2, and ELuc, were introduced into these preprepared HAC/MAC-introduced cell lines via the Cre-loxP system or simultaneous insertion of multiple gene-loading vectors. The model genes on the HACs/MACs were stably expressed and the HACs/MACs were stably maintained in the cell lines. Thus, our strategy using this HAC/MAC-containing cell line panel has dramatically simplified and accelerated gene introduction via HACs/MACs.
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Affiliation(s)
- Narumi Uno
- Division of Genome and Cellular Functions, Department of Molecular and Cellular Biology, Faculty of Medicine, School of Life Science, Tottori University, 86 Nishi-cho, Yonago, Tottori, 683-8503, Japan.
- Chromosome Engineering Research Center, Tottori University, 86 Nishi-cho, Yonago, Tottori, 683-8503, Japan.
- Laboratory of Bioengineering, Faculty of Life Sciences, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachiohji, Tokyo, 192-0392, Japan.
| | - Shuta Takata
- Division of Genome and Cellular Functions, Department of Molecular and Cellular Biology, Faculty of Medicine, School of Life Science, Tottori University, 86 Nishi-cho, Yonago, Tottori, 683-8503, Japan
| | - Shinya Komoto
- Division of Genome and Cellular Functions, Department of Molecular and Cellular Biology, Faculty of Medicine, School of Life Science, Tottori University, 86 Nishi-cho, Yonago, Tottori, 683-8503, Japan
| | - Hitomaru Miyamoto
- Division of Genome and Cellular Functions, Department of Molecular and Cellular Biology, Faculty of Medicine, School of Life Science, Tottori University, 86 Nishi-cho, Yonago, Tottori, 683-8503, Japan
| | - Yuji Nakayama
- Division of Radioisotope Science, Research Initiative Center, Organization for Research Initiative and Promotion, Tottori University, 86 Nishi-cho, Yonago, Tottori, 683-8503, Japan
| | - Mitsuhiko Osaki
- Chromosome Engineering Research Center, Tottori University, 86 Nishi-cho, Yonago, Tottori, 683-8503, Japan
- Division of Experimental Pathology, Department of Biomedical Sciences, Faculty of Medicine, Tottori University, Yonago, Tottori, 683-8503, Japan
| | - Ryota Mayuzumi
- Laboratory of Bioengineering, Faculty of Life Sciences, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachiohji, Tokyo, 192-0392, Japan
| | - Natsumi Miyazaki
- Laboratory of Bioengineering, Faculty of Life Sciences, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachiohji, Tokyo, 192-0392, Japan
| | - Chiaki Hando
- Laboratory of Bioengineering, Faculty of Life Sciences, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachiohji, Tokyo, 192-0392, Japan
| | - Satoshi Abe
- Chromosome Engineering Research Center, Tottori University, 86 Nishi-cho, Yonago, Tottori, 683-8503, Japan
| | - Tetsushi Sakuma
- Division of Integrated Sciences for Life, Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Hiroshima, 739-8526, Japan
| | - Takashi Yamamoto
- Division of Integrated Sciences for Life, Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Hiroshima, 739-8526, Japan
| | - Teruhiko Suzuki
- Stem Cell Project, Tokyo Metropolitan Institute of Medical Science, Kamikitazawa, Setagaya-ku, Tokyo, 156-8506, Japan
| | - Yoshihiro Nakajima
- Health Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Takamatsu, Kagawa, 761-0395, Japan
| | - Mitsuo Oshimura
- Chromosome Engineering Research Center, Tottori University, 86 Nishi-cho, Yonago, Tottori, 683-8503, Japan
| | - Kazuma Tomizuka
- Laboratory of Bioengineering, Faculty of Life Sciences, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachiohji, Tokyo, 192-0392, Japan
| | - Yasuhiro Kazuki
- Division of Genome and Cellular Functions, Department of Molecular and Cellular Biology, Faculty of Medicine, School of Life Science, Tottori University, 86 Nishi-cho, Yonago, Tottori, 683-8503, Japan.
- Chromosome Engineering Research Center, Tottori University, 86 Nishi-cho, Yonago, Tottori, 683-8503, Japan.
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Nousou T, Hirao S, Ogawa T, Shiraishi K. Preparation of poly(acrylamide‐co‐acrylonitrile) grafted glass and thermal stimulated detachment of surface‐attached human immortalized mesenchymal stem cells. J Appl Polym Sci 2022. [DOI: 10.1002/app.52257] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Tatsuki Nousou
- Graduate School of Systems Engineering Kindai University Higashihiroshima Hiroshima Japan
| | - Seiryu Hirao
- Graduate School of Systems Engineering Kindai University Higashihiroshima Hiroshima Japan
| | - Tomohiro Ogawa
- Center for the Advancement of Higher Education Kindai University Higashihiroshima Hiroshima Japan
| | - Kohei Shiraishi
- Graduate School of Systems Engineering Kindai University Higashihiroshima Hiroshima Japan
- Department of Biotechnology and Chemistry Kindai University Higashihiroshima Hiroshima Japan
- Research Institute of Fundamental Technology for Next Generation Kindai University 1 Umenobe Higashihiroshima Hiroshima Japan
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Establishment of human immortalized mesenchymal stem cells lines for the monitoring and analysis of osteogenic differentiation in living cells. Heliyon 2020; 6:e05398. [PMID: 33163667 PMCID: PMC7610338 DOI: 10.1016/j.heliyon.2020.e05398] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 06/25/2020] [Accepted: 10/28/2020] [Indexed: 12/26/2022] Open
Abstract
Mesenchymal stem cells (MSCs) are expected to be useful in bone regeneration treatment for various diseases and conditions, including cleft lip and palate, fracture, and bone absorption. However, to date, MSCs have failed to produce satisfactory results in clinical settings. This is primarily due to the low rate of induced osteogenic differentiation. To realize MSC potential, it is necessary to establish methods for the isolation of MSC-derived living osteoblasts. However, no osteoblast markers have been reported to date. In an attempt to develop a method for the assessment of osteoblast differentiation, we established reporter human immortalized MSC (hiMSC) lines for in vitro monitoring of bone gamma-carboxyglutamate protein (BGLAP, osteocalcin) expression. To this end, we successfully knocked-in an enhanced green fluorescent protein (EGFP) gene cassette immediately downstream of the first ATG of BGLAP via CRISPR-Cas9, and established hiMSC lines expressing EGFP to monitor osteogenic differentiation. On differentiation day 7, EGFP-positive cells were collected by flow cytometric cell sorting, and the expression of EGFP and endogenous BGLAP was analyzed. During osteogenic differentiation, EGFP upregulation was found to correlate with expression of endogenous BGLAP. Moreover, mineralization was confirmed using Alizarin red-S staining after two weeks of osteogenic differentiation of the modified hiMSC lines. The modified hiMSC lines, as well as the derived differentiated osteoblasts obtained herein, are valuable tools for the monitoring osteoblast gene and protein expression, and can be used to develop novel methods for isolating living osteoblasts.
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Sinenko SA, Ponomartsev SV, Tomilin AN. Human artificial chromosomes for pluripotent stem cell-based tissue replacement therapy. Exp Cell Res 2020; 389:111882. [DOI: 10.1016/j.yexcr.2020.111882] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 01/23/2020] [Accepted: 01/29/2020] [Indexed: 02/08/2023]
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Ling YH, Lin Z, Yuen KWY. Genetic and epigenetic effects on centromere establishment. Chromosoma 2019; 129:1-24. [PMID: 31781852 DOI: 10.1007/s00412-019-00727-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 09/24/2019] [Accepted: 10/10/2019] [Indexed: 01/19/2023]
Abstract
Endogenous chromosomes contain centromeres to direct equal chromosomal segregation in mitosis and meiosis. The location and function of existing centromeres is usually maintained through cell cycles and generations. Recent studies have investigated how the centromere-specific histone H3 variant CENP-A is assembled and replenished after DNA replication to epigenetically propagate the centromere identity. However, existing centromeres occasionally become inactivated, with or without change in underlying DNA sequences, or lost after chromosomal rearrangements, resulting in acentric chromosomes. New centromeres, known as neocentromeres, may form on ectopic, non-centromeric chromosomal regions to rescue acentric chromosomes from being lost, or form dicentric chromosomes if the original centromere is still active. In addition, de novo centromeres can form after chromatinization of purified DNA that is exogenously introduced into cells. Here, we review the phenomena of naturally occurring and experimentally induced new centromeres and summarize the genetic (DNA sequence) and epigenetic features of these new centromeres. We compare the characteristics of new and native centromeres to understand whether there are different requirements for centromere establishment and propagation. Based on our understanding of the mechanisms of new centromere formation, we discuss the perspectives of developing more stably segregating human artificial chromosomes to facilitate gene delivery in therapeutics and research.
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Affiliation(s)
- Yick Hin Ling
- School of Biological Sciences, The University of Hong Kong, Kadoorie Biological Sciences Building, Pokfulam Road, Hong Kong
| | - Zhongyang Lin
- School of Biological Sciences, The University of Hong Kong, Kadoorie Biological Sciences Building, Pokfulam Road, Hong Kong
| | - Karen Wing Yee Yuen
- School of Biological Sciences, The University of Hong Kong, Kadoorie Biological Sciences Building, Pokfulam Road, Hong Kong.
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Honma K, Abe S, Endo T, Uno N, Oshimura M, Ohbayashi T, Kazuki Y. Development of a multiple-gene-loading method by combining multi-integration system-equipped mouse artificial chromosome vector and CRISPR-Cas9. PLoS One 2018; 13:e0193642. [PMID: 29505588 PMCID: PMC5837097 DOI: 10.1371/journal.pone.0193642] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Accepted: 02/15/2018] [Indexed: 12/02/2022] Open
Abstract
Mouse artificial chromosome (MAC) vectors have several advantages as gene delivery vectors, such as stable and independent maintenance in host cells without integration, transferability from donor cells to recipient cells via microcell-mediated chromosome transfer (MMCT), and the potential for loading a megabase-sized DNA fragment. Previously, a MAC containing a multi-integrase platform (MI-MAC) was developed to facilitate the transfer of multiple genes into desired cells. Although the MI system can theoretically hold five gene-loading vectors (GLVs), there are a limited number of drugs available for the selection of multiple-GLV integration. To overcome this issue, we attempted to knock out and reuse drug resistance genes (DRGs) using the CRISPR-Cas9 system. In this study, we developed new methods for multiple-GLV integration. As a proof of concept, we introduced five GLVs in the MI-MAC by these methods, in which each GLV contained a gene encoding a fluorescent or luminescent protein (EGFP, mCherry, BFP, Eluc, and Cluc). Genes of interest (GOI) on the MI-MAC were expressed stably and functionally without silencing in the host cells. Furthermore, the MI-MAC carrying five GLVs was transferred to other cells by MMCT, and the resultant recipient cells exhibited all five fluorescence/luminescence signals. Thus, the MI-MAC was successfully used as a multiple-GLV integration vector using the CRISPR-Cas9 system. The MI-MAC employing these methods may resolve bottlenecks in developing multiple-gene humanized models, multiple-gene monitoring models, disease models, reprogramming, and inducible gene expression systems.
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Affiliation(s)
- Kazuhisa Honma
- Department of Biomedical Science, Institute of Regenerative Medicine and Biofunction, Graduate School of Medical Science, Tottori University, Yonago, Tottori, Japan
| | - Satoshi Abe
- Chromosome Engineering Research Center, Tottori University, Yonago, Tottori, Japan
| | - Takeshi Endo
- Tottori Industrial Promotion Organization, Tottori, Tottori, Japan
| | - Narumi Uno
- Department of Biomedical Science, Institute of Regenerative Medicine and Biofunction, Graduate School of Medical Science, Tottori University, Yonago, Tottori, Japan
- Chromosome Engineering Research Center, Tottori University, Yonago, Tottori, Japan
| | - Mitsuo Oshimura
- Chromosome Engineering Research Center, Tottori University, Yonago, Tottori, Japan
| | - Tetsuya Ohbayashi
- Division of Laboratory Animal Science, Research Center for Bioscience and Technology, Tottori University, Yonago, Tottori, Japan
| | - Yasuhiro Kazuki
- Department of Biomedical Science, Institute of Regenerative Medicine and Biofunction, Graduate School of Medical Science, Tottori University, Yonago, Tottori, Japan
- Chromosome Engineering Research Center, Tottori University, Yonago, Tottori, Japan
- * E-mail:
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Gabner S, Hlavaty J, Velde K, Renner M, Jenner F, Egerbacher M. Inflammation-induced transgene expression in genetically engineered equine mesenchymal stem cells. J Gene Med 2018; 18:154-64. [PMID: 27272202 DOI: 10.1002/jgm.2888] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Revised: 05/31/2016] [Accepted: 05/31/2016] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Osteoarthritis, a chronic and progressive degenerative joint disorder, ranks amongst the top five causes of disability. Given the high incidence, associated socioeconomic costs and the absence of effective disease-modifying therapies of osteoarthritis, cell-based treatments offer a promising new approach. Owing to their paracrine, differentiation and self-renewal abilities, mesenchymal stem cells (MSCs) have great potential for regenerative medicine, which might be further enhanced by targeted gene therapy. Hence, the development of systems allowing transgene expression, particularly when regulated by natural disease-dependent occuring substances, is of high interest. METHODS Bone marrow-isolated equine MSCs were stably transduced with an HIV-1 based lentiviral vector expressing the luciferase gene under control of an inducible nuclear factor κB (NFκB)-responsive promoter. Marker gene expression was analysed by determining luciferase activity in transduced cells stimulated with different concentrations of interleukin (IL)-1β or tumour necrosis factor (TNF)α. RESULTS A dose-dependent increase in luciferase expression was observed in transduced MSCs upon cytokine stimulation. The induction effect was more potent in cells treated with TNFα compared to those treated with IL-1β. Maximum transgene expression was obtained after 48 h of stimulation and the same time was necessary to return to baseline luciferase expression levels after withdrawal of the stimulus. Repeated cycles of induction allowed on-off modulation of transgene expression without becoming refractory to induction. The NFκB-responsive promoter retained its inducibility also in chondrogenically differentiated MSC/Luc cells. CONCLUSIONS The results of the present study demonstrate that on demand transgene expression from the NFκB-responsive promoter using naturally occurring inflammatory cytokines can be induced in undifferentiated and chondrogenically differentiated equine MSCs. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Simone Gabner
- Institute of Anatomy, Histology and Embryology, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Juraj Hlavaty
- Institute of Anatomy, Histology and Embryology, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Karsten Velde
- Equine University Hospital, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Matthias Renner
- Division of Medical Biotechnology, Paul-Ehrlich-Institut, Langen, Germany
| | - Florien Jenner
- Equine University Hospital, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Monika Egerbacher
- Institute of Anatomy, Histology and Embryology, University of Veterinary Medicine Vienna, Vienna, Austria
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8
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Uno N, Abe S, Oshimura M, Kazuki Y. Combinations of chromosome transfer and genome editing for the development of cell/animal models of human disease and humanized animal models. J Hum Genet 2017; 63:145-156. [PMID: 29180645 DOI: 10.1038/s10038-017-0378-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Revised: 10/03/2017] [Accepted: 10/11/2017] [Indexed: 11/09/2022]
Abstract
Chromosome transfer technology, including chromosome modification, enables the introduction of Mb-sized or multiple genes to desired cells or animals. This technology has allowed innovative developments to be made for models of human disease and humanized animals, including Down syndrome model mice and humanized transchromosomic (Tc) immunoglobulin mice. Genome editing techniques are developing rapidly, and permit modifications such as gene knockout and knockin to be performed in various cell lines and animals. This review summarizes chromosome transfer-related technologies and the combined technologies of chromosome transfer and genome editing mainly for the production of cell/animal models of human disease and humanized animal models. Specifically, these include: (1) chromosome modification with genome editing in Chinese hamster ovary cells and mouse A9 cells for efficient transfer to desired cell types; (2) single-nucleotide polymorphism modification in humanized Tc mice with genome editing; and (3) generation of a disease model of Down syndrome-associated hematopoiesis abnormalities by the transfer of human chromosome 21 to normal human embryonic stem cells and the induction of mutation(s) in the endogenous gene(s) with genome editing. These combinations of chromosome transfer and genome editing open up new avenues for drug development and therapy as well as for basic research.
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Affiliation(s)
- Narumi Uno
- Chromosome Engineering Research Center, Tottori University, 86 Nishi-cho, Yonago, Tottori, 683-8503, Japan.,Department of Biomedical Science, Institute of Regenerative Medicine and Biofunction, Graduate School of Medical Science, Tottori University, 86 Nishi-cho, Yonago, Tottori, 683-8503, Japan
| | - Satoshi Abe
- Chromosome Engineering Research Center, Tottori University, 86 Nishi-cho, Yonago, Tottori, 683-8503, Japan
| | - Mitsuo Oshimura
- Chromosome Engineering Research Center, Tottori University, 86 Nishi-cho, Yonago, Tottori, 683-8503, Japan.,Trans Chromosomics Inc., 86 Nishi-cho, Yonago, Tottori, 683-8503, Japan
| | - Yasuhiro Kazuki
- Chromosome Engineering Research Center, Tottori University, 86 Nishi-cho, Yonago, Tottori, 683-8503, Japan. .,Department of Biomedical Science, Institute of Regenerative Medicine and Biofunction, Graduate School of Medical Science, Tottori University, 86 Nishi-cho, Yonago, Tottori, 683-8503, Japan.
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Oshimura M, Uno N, Kazuki Y, Katoh M, Inoue T. A pathway from chromosome transfer to engineering resulting in human and mouse artificial chromosomes for a variety of applications to bio-medical challenges. Chromosome Res 2015; 23:111-33. [PMID: 25657031 PMCID: PMC4365188 DOI: 10.1007/s10577-014-9459-z] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Microcell-mediated chromosome transfer (MMCT) is a technique to transfer a chromosome from defined donor cells into recipient cells and to manipulate chromosomes as gene delivery vectors and open a new avenue in somatic cell genetics. However, it is difficult to uncover the function of a single specific gene via the transfer of an entire chromosome or fragment, because each chromosome or fragment contains a set of numerous genes. Thus, alternative tools are human artificial chromosome (HAC) and mouse artificial chromosome (MAC) vectors, which can carry a gene or genes of interest. HACs/MACs have been generated mainly by either a "top-down approach" (engineered creation) or a "bottom-up approach" (de novo creation). HACs/MACs with one or more acceptor sites exhibit several characteristics required by an ideal gene delivery vector, including stable episomal maintenance and the capacity to carry large genomic loci plus their regulatory elements, thus allowing the physiological regulation of the introduced gene in a manner similar to that of native chromosomes. The MMCT technique is also applied for manipulating HACs and MACs in donor cells and delivering them to recipient cells. This review describes the lessons learned and prospects identified from studies on the construction of HACs and MACs, and their ability to drive exogenous gene expression in cultured cells and transgenic animals via MMCT. New avenues for a variety of applications to bio-medical challenges are also proposed.
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Affiliation(s)
- Mitsuo Oshimura
- Chromosome Engineering Research Center, Tottori University, 86 Nishi-cho, Yonago, Tottori, 683-8503, Japan,
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Katona RL. De novo formed satellite DNA-based mammalian artificial chromosomes and their possible applications. Chromosome Res 2015; 23:143-57. [DOI: 10.1007/s10577-014-9458-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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11
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Wyse RD, Dunbar GL, Rossignol J. Use of genetically modified mesenchymal stem cells to treat neurodegenerative diseases. Int J Mol Sci 2014; 15:1719-45. [PMID: 24463293 PMCID: PMC3958818 DOI: 10.3390/ijms15021719] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2013] [Revised: 12/18/2013] [Accepted: 01/14/2014] [Indexed: 01/01/2023] Open
Abstract
The transplantation of mesenchymal stem cells (MSCs) for treating neurodegenerative disorders has received growing attention recently because these cells are readily available, easily expanded in culture, and when transplanted, survive for relatively long periods of time. Given that such transplants have been shown to be safe in a variety of applications, in addition to recent findings that MSCs have useful immunomodulatory and chemotactic properties, the use of these cells as vehicles for delivering or producing beneficial proteins for therapeutic purposes has been the focus of several labs. In our lab, the use of genetic modified MSCs to release neurotrophic factors for the treatment of neurodegenerative diseases is of particular interest. Specifically, glial cell-derived neurotrophic factor (GDNF), nerve growth factor (NGF), and brain derived neurotrophic factor (BDNF) have been recognized as therapeutic trophic factors for Parkinson's, Alzheimer's and Huntington's diseases, respectively. The aim of this literature review is to provide insights into: (1) the inherent properties of MSCs as a platform for neurotrophic factor delivery; (2) the molecular tools available for genetic manipulation of MSCs; (3) the rationale for utilizing various neurotrophic factors for particular neurodegenerative diseases; and (4) the clinical challenges of utilizing genetically modified MSCs.
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Affiliation(s)
- Robert D Wyse
- Field Neurosciences Institute Laboratory for Restorative Neurology, Brain Research and Integrative Neuroscience Center, Program in Neuroscience, Central Michigan University, Mount Pleasant, MI 48859, USA.
| | - Gary L Dunbar
- Field Neurosciences Institute Laboratory for Restorative Neurology, Brain Research and Integrative Neuroscience Center, Program in Neuroscience, Central Michigan University, Mount Pleasant, MI 48859, USA.
| | - Julien Rossignol
- Field Neurosciences Institute Laboratory for Restorative Neurology, Brain Research and Integrative Neuroscience Center, Program in Neuroscience, Central Michigan University, Mount Pleasant, MI 48859, USA.
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Kouprina N, Earnshaw WC, Masumoto H, Larionov V. A new generation of human artificial chromosomes for functional genomics and gene therapy. Cell Mol Life Sci 2013; 70:1135-48. [PMID: 22907415 PMCID: PMC3522797 DOI: 10.1007/s00018-012-1113-3] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2012] [Revised: 07/25/2012] [Accepted: 07/30/2012] [Indexed: 12/30/2022]
Abstract
Since their description in the late 1990s, human artificial chromosomes (HACs) carrying a functional kinetochore were considered as a promising system for gene delivery and expression with a potential to overcome many problems caused by the use of viral-based gene transfer systems. Indeed, HACs avoid the limited cloning capacity, lack of copy number control and insertional mutagenesis due to integration into host chromosomes that plague viral vectors. Nevertheless, until recently, HACs have not been widely recognized because of uncertainties of their structure and the absence of a unique gene acceptor site. The situation changed a few years ago after engineering of HACs with a single loxP gene adopter site and a defined structure. In this review, we summarize recent progress made in HAC technology and concentrate on details of two of the most advanced HACs, 21HAC generated by truncation of human chromosome 21 and alphoid(tetO)-HAC generated de novo using a synthetic tetO-alphoid DNA array. Multiple potential applications of the HAC vectors are discussed, specifically the unique features of two of the most advanced HAC cloning systems.
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MESH Headings
- Animals
- Animals, Genetically Modified
- Chromosomes, Artificial, Human/classification
- Chromosomes, Artificial, Human/genetics
- Chromosomes, Artificial, Human/physiology
- Disease Models, Animal
- Gene Transfer Techniques
- Genetic Diseases, Inborn/genetics
- Genetic Diseases, Inborn/pathology
- Genetic Diseases, Inborn/therapy
- Genetic Therapy/methods
- Genomics/methods
- Humans
- Models, Biological
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Affiliation(s)
- Natalay Kouprina
- Laboratory of Molecular Pharmacology, NCI, NIH, Bethesda, MD, USA.
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13
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Uno N, Uno K, Zatti S, Ueda K, Hiratsuka M, Katoh M, Oshimura M. The transfer of human artificial chromosomes via cryopreserved microcells. Cytotechnology 2013; 65:803-9. [PMID: 23494082 DOI: 10.1007/s10616-013-9548-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2012] [Accepted: 02/18/2013] [Indexed: 12/27/2022] Open
Abstract
Microcell-mediated chromosome transfer (MMCT) technology enables a single and intact mammalian chromosome or megabase-sized chromosome fragments to be transferred from donor to recipient cells. The conventional MMCT method is performed immediately after the purification of microcells. The timing of the isolation of microcells and the preparation of recipient cells is very important. Thus, ready-made microcells can improve and simplify the process of MMCT. Here, we established a cryopreservation method to store microcells at -80 °C, and compared these cells with conventionally- (immediately-) prepared cells with respect to the efficiency of MMCT and the stability of a human artificial chromosome (HAC) transferred to human HT1080 cells. The HAC transfer in microcell hybrids was confirmed by FISH analysis. There was no significant difference between the two methods regarding chromosome transfer efficiency and the retention rate of HAC. Thus, cryopreservation of ready-to-use microcells provides an improved and simplified protocol for MMCT.
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Affiliation(s)
- Narumi Uno
- Department of Biomedical Science, Institute of Regenerative Medicine and Biofunction, Graduate School of Medical Science, Tottori University, 86 Nishi-cho, Yonago, Tottori, 683-8503, Japan
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14
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Kazuki Y, Oshimura M. Human artificial chromosomes for gene delivery and the development of animal models. Mol Ther 2011; 19:1591-601. [PMID: 21750534 DOI: 10.1038/mt.2011.136] [Citation(s) in RCA: 94] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Random integration of conventional gene delivery vectors such as viruses, plasmids, P1 phage-derived artificial chromosomes, bacterial artificial chromosomes and yeast artificial chromosomes can be associated with transgene silencing. Furthermore, integrated viral sequences can activate oncogenes adjacent to the insertion site resulting in cancer. Various human artificial chromosomes (HACs) exhibit several potential characteristics desired for an ideal gene delivery vector, including stable episomal maintenance and the capacity to carry large genomic loci with their regulatory elements, thus allowing the physiological regulation of the introduced gene in a manner similar to that of native chromosomes. HACs have been generated mainly using either a "top-down approach" (engineered chromosomes), or a "bottom-up approach" (de novo artificial chromosomes). The recent emergence of stem cell-based tissue engineering has opened up new avenues for gene and cell therapies. This review describes the lessons learned and prospects identified mainly from studies in the construction of HACs and HAC-mediated gene expression systems in cultured cells, as well as in animals.
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Affiliation(s)
- Yasuhiro Kazuki
- Department of Biomedical Science, Institute of Regenerative Medicine and Biofunction, Graduate School of Medical Science, Tottori University, Yonago, Japan
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15
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A method for producing transgenic cells using a multi-integrase system on a human artificial chromosome vector. PLoS One 2011; 6:e17267. [PMID: 21390305 PMCID: PMC3044732 DOI: 10.1371/journal.pone.0017267] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2010] [Accepted: 01/24/2011] [Indexed: 11/19/2022] Open
Abstract
The production of cells capable of expressing gene(s) of interest is important for a variety of applications in biomedicine and biotechnology, including gene therapy and animal transgenesis. The ability to insert transgenes at a precise location in the genome, using site-specific recombinases such as Cre, FLP, and ΦC31, has major benefits for the efficiency of transgenesis. Recent work on integrases from ΦC31, R4, TP901-1 and Bxb1 phages demonstrated that these recombinases catalyze site-specific recombination in mammalian cells. In the present study, we examined the activities of integrases on site-specific recombination and gene expression in mammalian cells. We designed a human artificial chromosome (HAC) vector containing five recombination sites (ΦC31 attP, R4 attP, TP901-1 attP, Bxb1 attP and FRT; multi-integrase HAC vector) and de novo mammalian codon-optimized integrases. The multi-integrase HAC vector has several functions, including gene integration in a precise locus and avoiding genomic position effects; therefore, it was used as a platform to investigate integrase activities. Integrases carried out site-specific recombination at frequencies ranging from 39.3-96.8%. Additionally, we observed homogenous gene expression in 77.3-87.5% of colonies obtained using the multi-integrase HAC vector. This vector is also transferable to another cell line, and is capable of accepting genes of interest in this environment. These data suggest that integrases have high DNA recombination efficiencies in mammalian cells. The multi-integrase HAC vector enables us to produce transgene-expressing cells efficiently and create platform cell lines for gene expression.
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16
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Katona RL, Vanderbyl SL, Perez CF. Mammalian artificial chromosomes and clinical applications for genetic modification of stem cells: an overview. Methods Mol Biol 2011; 738:199-216. [PMID: 21431729 DOI: 10.1007/978-1-61779-099-7_14] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Modifying multipotent, self-renewing human stem cells with mammalian artificial chromosomes (MACs), present a promising clinical strategy for numerous diseases, especially ex vivo cell therapies that can benefit from constitutive or overexpression of therapeutic gene(s). MACs are nonintegrating, autonomously replicating, with the capacity to carry large cDNA or genomic sequences, which in turn enable potentially prolonged, safe, and regulated therapeutic transgene expression, and render MACs as attractive genetic vectors for "gene replacement" or for controlling differentiation pathways in progenitor cells. The status quo is that the most versatile target cell would be one that was pluripotent and self-renewing to address multiple disease target cell types, thus making multilineage stem cells, such as adult derived early progenitor cells and embryonic stem cells, as attractive universal host cells. We will describe the progress of MAC technologies, the subsequent modifications of stem cells, and discuss the establishment of MAC platform stem cell lines to facilitate proof-of-principle studies and preclinical development.
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Affiliation(s)
- Robert L Katona
- Institute of Genetics, Biological Research Center, Hungarian Academy of Sciences, Szeged, Hungary.
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17
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Kazuki Y, Hoshiya H, Takiguchi M, Abe S, Iida Y, Osaki M, Katoh M, Hiratsuka M, Shirayoshi Y, Hiramatsu K, Ueno E, Kajitani N, Yoshino T, Kazuki K, Ishihara C, Takehara S, Tsuji S, Ejima F, Toyoda A, Sakaki Y, Larionov V, Kouprina N, Oshimura M. Refined human artificial chromosome vectors for gene therapy and animal transgenesis. Gene Ther 2010; 18:384-93. [PMID: 21085194 PMCID: PMC3125098 DOI: 10.1038/gt.2010.147] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
Human artificial chromosomes (HACs) have several advantages as gene therapy vectors, including stable episomal maintenance, and the ability to carry large gene inserts. We previously developed HAC vectors from the normal human chromosomes using a chromosome engineering technique. However, endogenous genes were remained in these HACs, limiting their therapeutic applications. In this study, we refined a HAC vector without endogenous genes from human chromosome 21 in homologous recombination-proficient chicken DT40 cells. The HAC was physically characterized using a transformation-associated recombination (TAR) cloning strategy followed by sequencing of TAR-bacterial artificial chromosome clones. No endogenous genes were remained in the HAC. We demonstrated that any desired gene can be cloned into the HAC using the Cre-loxP system in Chinese hamster ovary cells, or a homologous recombination system in DT40 cells. The HAC can be efficiently transferred to other type of cells including mouse ES cells via microcell-mediated chromosome transfer. The transferred HAC was stably maintained in vitro and in vivo. Furthermore, tumor cells containing a HAC carrying the suicide gene, herpes simplex virus thymidine kinase (HSV-TK), were selectively killed by ganciclovir in vitro and in vivo. Thus, this novel HAC vector may be useful not only for gene and cell therapy, but also for animal transgenesis.
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Affiliation(s)
- Y Kazuki
- Department of Biomedical Science, Institute of Regenerative Medicine and Biofunction, Graduate School of Medical Science, Tottori University, Tottori, Japan
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18
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Takahashi Y, Tsuji S, Kazuki Y, Noguchi M, Arifuku I, Umebayashi Y, Nakanishi T, Oshimura M, Sato K. Development of evaluation system for bioactive substances using human artificial chromosome-mediated osteocalcin gene expression. J Biochem 2010; 148:29-34. [PMID: 20299329 DOI: 10.1093/jb/mvq030] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Bioactive substances in daily food and supplements are expected to prevent various lifestyle-related diseases. Recently, many evaluation systems for bioactive substances were developed with cell lines integrated with green fluorescence protein (GFP) reporter gene. To evaluate osteogensis activity in functional food, we developed a novel cell line that reports osteocalcin gene expression using the human artificial chromosome (HAC) vector. HAC vectors are able to avoid various problems in usual plasmid vector such as difficulty in control of transgene copy number. HAC is transmitted to cells as an independent chromosome from host chromosomes, and expresses transgenes depending on host cell circumstances. We established Chinese hamster ovary cell lines that carried GFP gene regulated by osteocalcin gene promoter on the HAC. Expression of GFP was responded to vitamin D(3) [1alpha,25(OH)(2)D(3)]. Furthermore, we constructed HAC vector bearing tandem repeats of reporter gene unit, to enhance intensity of gene expression. GFP expression in these reporter cells is related to the copy number of reporter gene units. Using the evaluation system for bioactive substances, we could show osteogenic activity in some fish oils.
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Affiliation(s)
- Yusuke Takahashi
- Department of Molecular Biology, School of Life Sciences, Faculty of Medicine, Tottori University, Nishi-cho, Yonago 683-8503, Japan
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19
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Kinoshita Y, Kamitani H, Mamun MH, Wasita B, Kazuki Y, Hiratsuka M, Oshimura M, Watanabe T. A gene delivery system with a human artificial chromosome vector based on migration of mesenchymal stem cells towards human glioblastoma HTB14 cells. Neurol Res 2009; 32:429-37. [PMID: 19589205 DOI: 10.1179/174313209x455718] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Mesenchymal stem cells (MSCs) have been expected to become useful gene delivery vehicles against human malignant gliomas when coupled with an appropriate vector system, because they migrate towards the lesion. Human artificial chromosomes (HACs) are non-integrating vectors with several advantages for gene therapy, namely, no limitations on the size and number of genes that can be inserted. We investigated the migration of human immortalized MSCs bearing a HAC vector containing the herpes simplex virus thymidine kinase gene (HAC-tk-hiMSCs) towards malignant gliomas in vivo. Red fluorescence protein-labeled human glioblastoma HTB14 cells were implanted into a subcortical region in nude mice. Four days later, green fluorescence protein-labeled HAC-tk-hiMSCs were injected into a contralateral subcortical region (the HTB14/HAC-tk-hiMSC injection model). Tropism to the glioma mass and the route of migration were visualized by fluorescence microscopy and immunohistochemical staining. HAC-tk-hiMSCs began to migrate toward the HTB14 glioma area via the corpus callosum on day 4, and gathered around the HTB14 glioma mass on day 7. To test whether the delivered gene could effectively treat glioblastoma in vivo, HTB14/HAC-tk-hiMSC injected mice were treated with ganciclovir (GCV) or PBS. The HTB14 glioma mass was significantly reduced by GCV treatment in mice injected with HAC-tk-hiMSCs. It was confirmed that gene delivery by our HAC-hiMSC system was effective after migration of MSCs to the glioma mass in vivo. Therefore, MSCs containing HACs carrying an anticancer gene or genes may provide a new tool for the treatment of malignant gliomas and possibly of other tumor types.
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Affiliation(s)
- Yusuke Kinoshita
- Department of Neurosurgery, Faculty of Medicine, Tottori University, Tottori, Japan.
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Introduction of a CD40L genomic fragment via a human artificial chromosome vector permits cell-type-specific gene expression and induces immunoglobulin secretion. J Hum Genet 2008; 53:447-453. [PMID: 18322642 DOI: 10.1007/s10038-008-0268-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2008] [Accepted: 02/09/2008] [Indexed: 10/22/2022]
Abstract
Gene therapy using cDNA driven by an exogenous promoter is not suited for genetic disorders that require intrinsic expression of a transgene, such as hyperimmunoglobulin (Ig)M syndrome (HIGM), which is caused by mutations in the CD40L gene. The human artificial chromosome (HAC) vector has the potential to solve this problem, because it can be used to transfer large genomic fragments containing their own regulatory elements. In this study, we examined whether introduction of a genomic fragment of CD40L via the HAC vector permits intrinsic expression of the transgene and has an effect on immunoglobulin secretion. We constructed an HAC vector carrying the mouse CD40L genomic fragment (mCD40L-HAC) in Chinese hamster ovary (CHO) cells and transferred the mCD40L-HAC vector into a human CD4-positive active T-cell line (Jurkat) and a human myeloid cell line (U937) via microcell-mediated chromosome transfer (MMCT). The mCD40L-HAC vector permits mCD40L expression in human active T cells but not in human myeloid cells. The mCD40L-HAC also functions to stimulate mouse B cells derived from CD40L(-/-) mice, inducing secretion of IgG. This study may be an initial step toward the therapeutic application of HAC vectors for intrinsic expression of genes, a potential new direction for genome-based gene therapy.
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21
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Oshimura M, Katoh M. Transfer of human artificial chromosome vectors into stem cells. Reprod Biomed Online 2008; 16:57-69. [PMID: 18252049 DOI: 10.1016/s1472-6483(10)60557-3] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Human chromosome fragments and human artificial chromosomes (HAC) represent feasible gene delivery vectors via microcell-mediated chromosome transfer. Strategies to construct HAC involve either 'build up' or 'top-down' approaches. For each approach, techniques for manipulating HAC in donor cells in order to deliver HAC to recipient cells are required. The combination of chromosome fragments or HAC with microcell-mediated chromosome transfer has facilitated human gene mapping and various genetic studies. The recent emergence of stem cell-based tissue engineering has opened up new avenues for gene and cell therapies. The task now is to develop safe and effective vectors that can deliver therapeutic genes into specific stem cells and maintain long-term regulated expression of these genes. Although the transfer-efficiency needs to be improved, HAC possess several characteristics that are required for gene therapy vectors, including stable episomal maintenance and the capacity for large gene insets. HAC can also carry genomic loci with regulatory elements, which allow for the expression of transgenes in a genetic environment similar to the natural chromosome. This review describes the lessons and prospects learned, mainly from recent studies in developing HAC and HAC-mediated gene expression in embryonic and adult stem cells, and in transgenic animals.
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Affiliation(s)
- Mitsuo Oshimura
- Department of Biomedical Science, Institute of Regenerative Medicine and Biofunction, Graduate School of Medical Science, Tottori University, 86 Nishicho, Yonago, Tottori 683-8503, Japan.
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22
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Specific monitoring of cardiomyogenic and endothelial differentiation by dual promoter-driven reporter systems in bone marrow mesenchymal stem cells. Biotechnol Lett 2008; 30:835-43. [DOI: 10.1007/s10529-007-9631-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2007] [Revised: 12/14/2007] [Accepted: 12/14/2007] [Indexed: 10/22/2022]
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23
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Input DNA ratio determines copy number of the 33 kb Factor IX gene on de novo human artificial chromosomes. Mol Ther 2007; 16:315-23. [PMID: 18059371 DOI: 10.1038/sj.mt.6300361] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Human artificial chromosomes (ACs) are non-integrating vectors that may be useful for gene therapy. They assemble in cultured cells following transfection of human centromeric alpha -satellite DNA and segregate efficiently alongside the host genome. In the present study, a 33 kilobase (kb) Factor IX (FIX) gene was incorporated into mitotically stable ACs in human HT1080 lung derived cells using co-transfection of a bacterial artificial chromosome (BAC) harboring synthetic alpha -satellite DNA and a P1 artificial chromosome(PAC) that spans the FIX locus. ACs were detected in >or=90% of chromosome spreads in 8 of 19 lines expanded from drug resistant colonies. FIX transgene copy number on ACs was determined by input DNA transfection ratios. Furthermore, a low level of FIX transcription was detected from ACs with multiple transgenes but not from those incorporating a single transgene, suggesting that reducing transgene number may limit misexpression. Their potential to segregate cross species was measured by transferring ACs into mouse and hamster cell lines using microcell-mediated chromosome transfer. Lines were obtained where ACs segregated efficiently. The stable segregation of ACs in rodent cells suggests that it should be possible to develop animal models to test the capacity of ACs to rescue FIX deficiency.
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24
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Duncan A, Hadlaczky G. Chromosomal engineering. Curr Opin Biotechnol 2007; 18:420-4. [PMID: 17977711 DOI: 10.1016/j.copbio.2007.09.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2007] [Revised: 09/14/2007] [Accepted: 09/18/2007] [Indexed: 01/19/2023]
Abstract
Artificial chromosomes (ACs) are engineered chromosomes with defined genetic contents that can function as non-integrating vectors with large carrying capacity and stability. The large carrying capacity allows the engineering of ACs with multiple copies of the same transgene, gene complexes, and to include regulatory elements necessary for the regulated expression of transgene(s). Artificial chromosome based systems are composed of AC engineered to harbor and express gene(s) of interest and an appropriate recombination system for 'custom' engineering of ACs. These systems have the potential to become an efficient tool in diverse gene technology applications such as cellular protein manufacturing, transgenic animal production, and ultimately gene therapy. Recent advances in artificial chromosome technologies outline the value of these systems and justify the future research efforts to overcome the obstacles in exploring their full capabilities.
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Affiliation(s)
- Alistair Duncan
- Chromos Molecular Systems Inc., 8081 Lougheed Highway, Burnaby, BC, Canada V5A 1W9
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25
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Paulis M, Bensi M, Orioli D, Mondello C, Mazzini G, D'Incalci M, Falcioni C, Radaelli E, Erba E, Raimondi E, De Carli L. Transfer of a Human Chromosomal Vector from a Hamster Cell Line to a Mouse Embryonic Stem Cell Line. Stem Cells 2007; 25:2543-50. [PMID: 17615268 DOI: 10.1634/stemcells.2007-0052] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Two transchromosomic mouse embryonic stem (ES) sublines (ESMClox1.5 and ESMClox2.1) containing a human minichromosome (MC) were established from a sample of hybrid colonies isolated in fusion experiments between a normal diploid mouse ES line and a Chinese hamster ovary line carrying the MC. DNA cytometric and chromosome analyses of ESMClox1.5 and ESMClox2.1 indicated a mouse chromosome complement with a heteroploid constitution in a subtetraploid range; the karyotypes showed various degrees of polysomy for different chromosomes. A single copy of the MC was found in the majority of cells in all the isolated hybrid colonies and was stably maintained in the established sublines for more than 100 cell generations either with or without the selective agent. No significant differences from the ES parental cells were observed in growth characteristics of the transchromosomic ES sublines. ESMClox1.5 cells were unable to grow in soft agar; when cultured in hanging drops, they formed embryoid bodies, and when inoculated in nude mice, they produced teratomas. They were able to express the early development markers Oct4 and Nanog, as demonstrated by reverse transcription-polymerase chain reaction assay. All these features are in common with the ES parental line. Further research using the transchromosomic ES sublines described here may allow gene expression studies on transferred human minichromosomes and could shed light on the relationships among ploidy, pluripotency, cell transformation, and tumorigenesis. Disclosure of potential conflicts of interest is found at the end of this article.
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Affiliation(s)
- Marianna Paulis
- Dipartimento di Genetica e Microbiologia Adriano Buzzati Traverso Università degli Studi di Pavia, Pavia, Italy
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Ren X, Tahimic CGT, Katoh M, Kurimasa A, Inoue T, Oshimura M. Human artificial chromosome vectors meet stem cells: new prospects for gene delivery. ACTA ACUST UNITED AC 2007; 2:43-50. [PMID: 17142886 DOI: 10.1007/s12015-006-0008-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/1999] [Revised: 11/30/1999] [Accepted: 11/30/1999] [Indexed: 12/14/2022]
Abstract
The recent emergence of stem cell-based tissue engineering has now opened up new venues for gene therapy. The task now is to develop safe and effective vectors that can deliver therapeutic genes into specific stem cell lines and maintain long-term regulated expression of these genes. Human artificial chromosomes (HACs) possess several characteristics that require gene therapy vectors, including a stable episomal maintenance, and the capacity for large gene inserts. HACs can also carry genomic loci with regulatory elements, thus allowing for the expression of transgenes in a genetic environment similar to the chromosome. Currently, HACs are constructed by a two prone approaches. Using a top-down strategy, HACs can be generated from fragmenting endogenous chromosomes. By a bottom-up strategy, HACs can be created de novo from cloned chromosomal components using chromosome engineering. This review describes the current advances in developing HACs, with the main focus on their applications and potential value in gene delivery, such as HAC-mediated gene expression in embryonic, adult stem cells, and transgenic animals.
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Affiliation(s)
- Xianying Ren
- Department of Biomedical Science, Institute of Regenerative Medicine and Biofunction,Tottori University, 86 Nishicho,Yonago, Tottori 683-8503, Japan
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27
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Kawahara M, Inoue T, Ren X, Sogo T, Yamada H, Katoh M, Ueda H, Oshimura M, Nagamune T. Antigen-mediated growth control of hybridoma cells via a human artificial chromosome. Biochim Biophys Acta Gen Subj 2007; 1770:206-12. [PMID: 17184921 DOI: 10.1016/j.bbagen.2006.10.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2006] [Revised: 10/22/2006] [Accepted: 10/23/2006] [Indexed: 01/25/2023]
Abstract
Human artificial chromosome (HAC) vectors possess several characteristics sufficient for the requirements of gene therapy vectors, including stable episomal maintenance and mediation of long-term transgene expression. In this study, we adopted an antigen-mediated genetically modified cell amplification (AMEGA) system employing an antibody/cytokine receptor chimera that triggers a growth signal in response to a cognate non-toxic antigen, and applied it to growth control of HAC-transferred cells by adding an antigen that differed from cytokines that may manifest pleiotropic effects. We previously constructed a novel HAC vector, 21 Delta qHAC, derived from human chromosome 21, housed in CHO cells. Here, we constructed an HAC vector harboring an ScFv-gp130 chimera responsive to fluorescein-conjugated BSA (BSA-FL) as well as a model transgene, enhanced green fluorescent protein (EGFP), in CHO cells. The modified HAC was transferred into interleukin (IL)-6-dependent hybridoma 7TD1 cells by microcell-mediated chromosome transfer, and the cells were subsequently found to show BSA-FL-dependent cell growth and sustained expression of EGFP in the absence of IL-6. The AMEGA system in combination with HAC technology will be useful for increasing the efficacy of gene therapy by conferring a growth advantage on the genetically modified cells.
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Affiliation(s)
- Masahiro Kawahara
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
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28
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Basu J, Willard HF. Human artificial chromosomes: potential applications and clinical considerations. Pediatr Clin North Am 2006; 53:843-53, viii. [PMID: 17027613 DOI: 10.1016/j.pcl.2006.08.013] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Human artificial chromosomes demonstrate promise as a novel class of nonintegrative gene therapy vectors. The authors outline current developments in human artificial chromosome technology and examine their potential for clinical application.
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Affiliation(s)
- Joydeep Basu
- Institute for Genome Sciences & Policy, Duke University, 101 Science Drive, Durham, NC 27708, USA.
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29
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Haupt S, Edenhofer F, Peitz M, Leinhaas A, Brüstle O. Stage-specific conditional mutagenesis in mouse embryonic stem cell-derived neural cells and postmitotic neurons by direct delivery of biologically active Cre recombinase. Stem Cells 2006; 25:181-8. [PMID: 16960133 DOI: 10.1634/stemcells.2006-0371] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Conditional mutagenesis using Cre/loxP recombination is a powerful tool to investigate genes involved in neural development and function. However, the efficient delivery of biologically active Cre recombinase to neural cells, particularly to postmitotic neurons, represents a limiting factor. In this study, we devised a protocol enabling highly efficient conditional mutagenesis in ESC-derived neural progeny. Using a stepwise in vitro differentiation paradigm, we demonstrate that recombinant cell-permeable Cre protein can be used to efficiently induce recombination at defined stages of neural differentiation. Recombination rates of more than 90% were achieved in multipotent pan-neural and glial precursors derived from the Z/EG reporter mouse ESC line, in which Cre recombination activates enhanced green fluorescent proteinexpression. Recombined precursor cells displayed a normal phenotype and were able to differentiate into neurons and/or glial cells, indicating that Cre treatment has no overt side effects on proliferation and neural differentiation. Our data further demonstrate that recombination via Cre protein transduction is not restricted to dividing cells but can even be applied to postmitotic neurons. The ability to conduct Cre/loxP recombination at defined stages of stem cell differentiation in an expression-independent manner provides new prospects for studying the role of individual genes under stringent temporal control.
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Affiliation(s)
- Simone Haupt
- Institute of Reconstructive Neurobiology, Life & Brain Center and Hertie Foundation, University of Bonn, Bonn, Germany
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30
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Suda T, Katoh M, Hiratsuka M, Takiguchi M, Kazuki Y, Inoue T, Oshimura M. Heat-regulated production and secretion of insulin from a human artificial chromosome vector. Biochem Biophys Res Commun 2005; 340:1053-61. [PMID: 16403445 DOI: 10.1016/j.bbrc.2005.12.106] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2005] [Accepted: 12/19/2005] [Indexed: 01/28/2023]
Abstract
Human artificial chromosomes (HACs) behave as independent minichromosomes and are potentially useful as a way to achieve safe, long-term expression of a transgene. In this study, we sought to elucidate the potential of HAC vectors carrying the human proinsulin transgene for gene therapy of insulin-dependent diabetes mellitus (IDDM) using non-beta-cells as a host for the vector. To facilitate the production of mature insulin in non-beta-cells and to safely regulate the level of transgene expression, we introduced furin-cleavable sites into the proinsulin coding region and utilized the heat shock protein 70 (Hsp70) promoter. We used Cre-loxP-mediated recombination to introduce the gene cassettes onto 21DeltapqHAC, a HAC vector whose structure is completely defined, present in human fibrosarcoma HT1080 cells. We observed long-term expression and stable retention of the transgene without aberrant translocation of the HAC constructs. As expected, the Hsp70 promoter allowed us to regulate gene expression with temperature, and the production and secretion of intermediates of mature insulin were made possible by the furin-cleavable sites we had introduced into proinsulin. This study can be an initial step on the application of HAC vectors on the gene delivery to non-beta-cells, which might provide a direction for future treatment for diabetes.
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Affiliation(s)
- Tetsuji Suda
- Department of Human Genome Science, Graduate School of Medical Science, Tottori University, 86 Nishi-cho, Yonago, Tottori 683-8503, Japan
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31
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Yamada H, Kunisato A, Kawahara M, Tahimic CGT, Ren X, Ueda H, Nagamune T, Katoh M, Inoue T, Nishikawa M, Oshimura M. Exogenous gene expression and growth regulation of hematopoietic cells via a novel human artificial chromosome. J Hum Genet 2005; 51:147-150. [PMID: 16333524 DOI: 10.1007/s10038-005-0334-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2005] [Accepted: 10/18/2005] [Indexed: 10/25/2022]
Abstract
A number of gene delivery systems are currently being developed for potential use in gene therapy. Here, we demonstrate the feasibility of 21deltaqHAC, a newly developed human artificial chromosome (HAC), as a gene delivery system. We first introduced a 21deltaqHAC carrying an EGFP reporter gene and a geneticin-resistant gene (EGFP-21deltaqHAC) into hematopoietic cells by microcell-mediated chromosome transfer. These HAC-containing hematopoietic cells showed resistance to geneticin, expressed EGFP and retained the ability to differentiate into various lineages, and the EGFP-21deltaqHAC was successfully transduced into primary hematopoietic cells. Hematopoietic cells harboring the EGFP-21deltaqHAC could still be detected at two weeks post-transplantation in immunodeficient mice. We also showed effective expansion of hematopoietic cells by introducing the 21deltaqHAC containing ScFvg, a gp130-based chimeric receptor that transmits growth signals in response to specific-antigen of this receptor. All of these results demonstrate the usefulness of HAC in gene therapy.
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Affiliation(s)
- Hidetoshi Yamada
- Department of Biomedical Science, Institute of Regenerative Medicine and Biofunction, Graduate School of Medical Science, Tottori University, 86 Nishi-cho, Yonago, Tottori 683-8503, Japan
- Department of Human Genome Science, Graduate School of Medical Science, Tottori University, 86 Nishi-cho, 683-8503, Yonago, Tottori, Japan
| | - Atsushi Kunisato
- Pharmaceutical Research Laboratories, Pharmaceutical Division, Kirin Brewery Co., Ltd, 3 Miyahara, Takasaki, Gunma 370-1295, Japan
| | - Masahiro Kawahara
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Candice G T Tahimic
- Department of Biomedical Science, Institute of Regenerative Medicine and Biofunction, Graduate School of Medical Science, Tottori University, 86 Nishi-cho, Yonago, Tottori 683-8503, Japan
| | - Xianying Ren
- Department of Human Genome Science, Graduate School of Medical Science, Tottori University, 86 Nishi-cho, 683-8503, Yonago, Tottori, Japan
| | - Hiroshi Ueda
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Teruyuki Nagamune
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Motonobu Katoh
- Department of Human Genome Science, Graduate School of Medical Science, Tottori University, 86 Nishi-cho, 683-8503, Yonago, Tottori, Japan
| | - Toshiaki Inoue
- Department of Human Genome Science, Graduate School of Medical Science, Tottori University, 86 Nishi-cho, 683-8503, Yonago, Tottori, Japan
| | - Mitsuo Nishikawa
- Department of Biomedical Science, Institute of Regenerative Medicine and Biofunction, Graduate School of Medical Science, Tottori University, 86 Nishi-cho, Yonago, Tottori 683-8503, Japan
- Pharmaceutical Research Laboratories, Pharmaceutical Division, Kirin Brewery Co., Ltd, 3 Miyahara, Takasaki, Gunma 370-1295, Japan
| | - Mitsuo Oshimura
- Department of Biomedical Science, Institute of Regenerative Medicine and Biofunction, Graduate School of Medical Science, Tottori University, 86 Nishi-cho, Yonago, Tottori 683-8503, Japan.
- Department of Human Genome Science, Graduate School of Medical Science, Tottori University, 86 Nishi-cho, 683-8503, Yonago, Tottori, Japan.
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32
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Irvine DV, Shaw ML, Choo KHA, Saffery R. Engineering chromosomes for delivery of therapeutic genes. Trends Biotechnol 2005; 23:575-83. [PMID: 16242803 DOI: 10.1016/j.tibtech.2005.10.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2005] [Revised: 06/03/2005] [Accepted: 10/06/2005] [Indexed: 02/02/2023]
Abstract
The ability to create fully functional human chromosome vectors represents a potentially exciting gene-delivery system for the correction of human genetic disorders with several advantages over viral delivery systems. However, for the full potential of chromosome-based gene-delivery vectors to be realized, several key obstacles must be overcome. Methods must be developed to insert therapeutic genes reliably and efficiently and to enable the stable transfer of the resulting chromosomal vectors to different therapeutic cell types. Research to achieve these outcomes continues to encounter major challenges; however recent developments have reiterated the potential of chromosome-based vectors for therapeutic gene delivery. Here we review the different strategies under development and discuss the advantages and problems associated with each.
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Affiliation(s)
- Danielle V Irvine
- Chromosome Research Group, Murdoch Childrens Research Institute, Royal Children's Hospital, Department of Paediatrics, University of Melbourne, Flemington Road, Parkville 3052, Australia
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Ayabe F, Katoh M, Inoue T, Kouprina N, Larionov V, Oshimura M. A novel expression system for genomic DNA loci using a human artificial chromosome vector with transformation-associated recombination cloning. J Hum Genet 2005; 50:592-599. [PMID: 16231070 DOI: 10.1007/s10038-005-0300-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2005] [Accepted: 08/11/2005] [Indexed: 12/17/2022]
Abstract
Following the recent completion of the human genome sequence, genomics research has shifted its focus to understanding gene complexity, expression, and regulation. However, in order to investigate such issues, there is a need to develop a practical system for genomic DNA expression. Transformation-associated recombination (TAR) cloning has proven to be a convenient tool for selective isolation of a genetic locus from a complex genome as a circular YAC using recombination in yeast. The human artificial chromosome (HAC) vector containing an acceptor loxP site has served as a platform for the reproducible expression of transgenes. In this study, we describe a system that efficiently expresses a genetic locus in mammalian cells by retrofitting a TAR-YAC with the donor loxP site and loading it onto the HAC vector by the Cre/loxP system. In order to demonstrate functional expression of genomic loci, the entire human hypoxanthine phosphoribosyl transferase (HPRT) locus contained in a 100 kb YAC was loaded onto the HAC vector and was shown to complement the genetic defect in Hprt-deficient CHO cells. Thus, the combination of TAR cloning and the HAC vector may serve as a powerful tool for functional genomic studies.
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MESH Headings
- Animals
- Blotting, Southern
- CHO Cells
- Chromosomes, Artificial, Human/genetics
- Cloning, Molecular/methods
- Cricetinae
- Cricetulus
- DNA Primers
- Electrophoresis, Gel, Pulsed-Field
- Gene Expression Profiling/methods
- Genome, Human/genetics
- Humans
- Hypoxanthine Phosphoribosyltransferase/genetics
- In Situ Hybridization, Fluorescence
- Polymerase Chain Reaction
- Recombination, Genetic/genetics
- Restriction Mapping
- Transformation, Genetic/genetics
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Affiliation(s)
- Fumiaki Ayabe
- Department of Biomedical Science, Institute of Regenerative Medicine and Biofunction, Graduate School of Medical Science, Tottori University, 86 Nishi-cho, Yonago, Tottori 683-8503, Japan
| | - Motonobu Katoh
- Department of Human Genome Science, Graduate School of Medical Science, Tottori University, 86 Nishi-cho, Yonago, Tottori 683-8503, Japan
| | - Toshiaki Inoue
- Department of Human Genome Science, Graduate School of Medical Science, Tottori University, 86 Nishi-cho, Yonago, Tottori 683-8503, Japan
| | - Natalay Kouprina
- Laboratory of Biosystems and Cancer, National Cancer Institute, NIH, Bldg. 37, Room 5032, 90000 Rockville Pike, Bethesda, MD, 20892, USA
| | - Vladimir Larionov
- Laboratory of Biosystems and Cancer, National Cancer Institute, NIH, Bldg. 37, Room 5032, 90000 Rockville Pike, Bethesda, MD, 20892, USA
| | - Mitsuo Oshimura
- Department of Biomedical Science, Institute of Regenerative Medicine and Biofunction, Graduate School of Medical Science, Tottori University, 86 Nishi-cho, Yonago, Tottori 683-8503, Japan.
- Department of Human Genome Science, Graduate School of Medical Science, Tottori University, 86 Nishi-cho, Yonago, Tottori 683-8503, Japan.
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