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Zhang J, Wang TY, Zhang C, Mi C, Geng S, Tang Y, Wang X. CMV/AAT promoter of MAR-based episomal vector enhanced transgene expression in human hepatic cells. 3 Biotech 2023; 13:354. [PMID: 37810190 PMCID: PMC10558423 DOI: 10.1007/s13205-023-03774-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Accepted: 09/13/2023] [Indexed: 10/10/2023] Open
Abstract
We have previously developed a non-viral episomal vector based on matrix attachment region (MAR) that can facilitate plasmid replication episomally in mammal cells. In this study, we have focused on the development of an alternative tissue specific episomal vector by incorporating into cis-acting elements. We found that AAT promoter demonstrated the highest eGFP expression level in HepG2, Huh-7 and HL-7702 hepatic cells. Furthermore, hCMV enhancer when combined with AAT promoter significantly improved the eGFP expression level in the transfected HepG2 cells. The mean fluorescence intensity of eGFP in hCMV2 group was 1.33 fold, which was higher than that of the control (p < 0.01), followed by the hCMV1 group (1.21 fold). In addition, the percentages of eGFP-expressing cells in hCMV1 and hCMV2 groups were observed to be 49.3% and 57.2%, which were significantly higher than that of the enhancer-devoid control vector (44.3%) (p < 0.05). Moreover, the eGFP protein were up to 3.5 fold and 5.1 fold (p < 0.05), respectively. This observation could be related with the activities of some specific transcription factors (TFs) during the transcriptional process, such as SRF, REL and CREB1. The composite CMV/AAT promoter can be thus used for efficient transgene expression of MAR-based episomal vector in liver cells and as a potential gene transfer tools for the management of liver diseases. Supplementary Information The online version contains supplementary material available at 10.1007/s13205-023-03774-x.
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Affiliation(s)
- Jihong Zhang
- School of Basic Medical Sciences, Xinxiang Medical University, No. 601 Jinsui Road, Xinxiang, 453003 Henan Province China
- International Joint Research Laboratory for Recombinant Pharmaceutical Protein Expression System of Henan, Xinxiang, 453003 China
| | - Tian-Yun Wang
- School of Basic Medical Sciences, Xinxiang Medical University, No. 601 Jinsui Road, Xinxiang, 453003 Henan Province China
- International Joint Research Laboratory for Recombinant Pharmaceutical Protein Expression System of Henan, Xinxiang, 453003 China
| | - Chunbo Zhang
- College of Life Science, Henan Normal University, Xinxiang, 453000 China
| | - Chunliu Mi
- School of Basic Medical Sciences, Xinxiang Medical University, No. 601 Jinsui Road, Xinxiang, 453003 Henan Province China
- International Joint Research Laboratory for Recombinant Pharmaceutical Protein Expression System of Henan, Xinxiang, 453003 China
| | - Shaolei Geng
- School of Basic Medical Sciences, Xinxiang Medical University, No. 601 Jinsui Road, Xinxiang, 453003 Henan Province China
- International Joint Research Laboratory for Recombinant Pharmaceutical Protein Expression System of Henan, Xinxiang, 453003 China
| | - Yuanyuan Tang
- School of Basic Medical Sciences, Xinxiang Medical University, No. 601 Jinsui Road, Xinxiang, 453003 Henan Province China
| | - Xiaoyin Wang
- School of Basic Medical Sciences, Xinxiang Medical University, No. 601 Jinsui Road, Xinxiang, 453003 Henan Province China
- International Joint Research Laboratory for Recombinant Pharmaceutical Protein Expression System of Henan, Xinxiang, 453003 China
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Suzuki T, Wakao Y, Goda T, Kamiya H. Conventional plasmid DNAs with a CpG-containing backbone achieve durable transgene expression in mouse liver. J Gene Med 2020; 22:e3138. [PMID: 31696985 DOI: 10.1002/jgm.3138] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 10/23/2019] [Accepted: 10/28/2019] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Durable transgene expression from plasmid DNAs is the key to gene therapy with non-viral vectors. A comparison of the durability of transgene expression from plasmid DNAs with the CpG-free and -containing backbones is important. METHODS We constructed plasmid DNAs with the CpG-containing backbone, various transcription regulatory sequences with and without CpG, and the gene encoding Gaussia princeps luciferase, which is apparently non-immunogenic. The tail vein hydrodynamics-based method was used for plasmid injection into mice, and the luciferase activity in serum was tracked for 28 days. RESULTS The plasmid DNAs containing the albumin promoter [with or without the cytomegalovirus (CMV) enhancer] and the elongation factor (EF)1α promoter plus the CMV enhancer exhibited long-term luciferase expression. The expression from the plasmid DNA containing the albumin promoter without the CMV enhancer was maintained for at least 24 weeks and was similar to that from the corresponding CpG-free plasmid DNA. CONCLUSIONS The results obtained in the present study suggest that special sequences/systems are unnecessary for durable transgene expression from plasmid DNAs when the proper transcription regulatory sequences are used.
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Affiliation(s)
- Tetsuya Suzuki
- Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Yusuke Wakao
- Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Takuya Goda
- Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Hiroyuki Kamiya
- Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
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Suzuki T, Wakao Y, Watanabe T, Hori M, Ikeda Y, Tsuchiya H, Kogure K, Harada-Shiba M, Fujimuro M, Kamiya H. No enhancing effects of plasmid-specific histone acetyltransferase recruitment system on transgene expression in vivo. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2019; 38:942-949. [PMID: 31299884 DOI: 10.1080/15257770.2019.1638514] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Altered levels of histone acetylation are associated with changes in chromosomal gene expression. Thus, the specific acetylation of histones bound to plasmid DNA might increase transgene expression. Previously, the expression of the histone acetyltransferase domain of CREB-binding protein fused to the sequence-dependent DNA binding domain of GAL4 (GAL4-HAT) successfully improved reporter gene expression in cultured cells [J. Biosci. Bioengng. 123, 277-280 (2017)]. In this study, the same approach was applied for transgene expression in mice. The activator and reporter plasmid DNAs bearing the genes for GAL4-HAT and Gaussia princeps luciferase, respectively, were co-administered into the mouse liver by hydrodynamics-based tail vein injection, and the Gaussia luciferase activity in serum was measured for two weeks. Unexpectedly, the co-injection of the GAL4-HAT and luciferase plasmid DNAs seemed to decrease, rather than increase, luciferase expression. Moreover, the co-injection apparently reduced the amount of luciferase DNA in the liver. These results indicated that this system is ineffective in vivo and suggested the exclusion of hepatic cells expressing GAL4-HAT.
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Affiliation(s)
- Tetsuya Suzuki
- Graduate School of Biomedical and Health Sciences , Hiroshima University , Hiroshima , Japan
| | - Yusuke Wakao
- Graduate School of Biomedical and Health Sciences , Hiroshima University , Hiroshima , Japan
| | - Tadashi Watanabe
- Department of Cell Biology , Kyoto Pharmaceutical University , Kyoto , Japan
| | - Mika Hori
- Department of Molecular Innovation in Lipidology , National Cerebral and Cardiovascular Center Research Institute , Suita , Osaka , Japan
| | - Yoshito Ikeda
- Department of Biophysical Chemistry , Kyoto Pharmaceutical University , Kyoto , Japan.,Laboratory of Medicinal Cell Biology, Kobe Pharmaceutical University , Kobe , Japan
| | - Hiroyuki Tsuchiya
- Department of Biophysical Chemistry , Kyoto Pharmaceutical University , Kyoto , Japan.,Graduate School of Medicine , Tottori University , Yonago , Tottori , Japan
| | - Kentaro Kogure
- Department of Biophysical Chemistry , Kyoto Pharmaceutical University , Kyoto , Japan.,Graduate School of Biomedical Sciences , Tokushima University , Tokushima , Japan
| | - Mariko Harada-Shiba
- Department of Molecular Innovation in Lipidology , National Cerebral and Cardiovascular Center Research Institute , Suita , Osaka , Japan
| | - Masahiro Fujimuro
- Department of Cell Biology , Kyoto Pharmaceutical University , Kyoto , Japan
| | - Hiroyuki Kamiya
- Graduate School of Biomedical and Health Sciences , Hiroshima University , Hiroshima , Japan
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Nishihara M, Kanda GN, Suzuki T, Yamakado S, Harashima H, Kamiya H. Enhanced transgene expression by plasmid-specific recruitment of histone acetyltransferase. J Biosci Bioeng 2017; 123:277-280. [DOI: 10.1016/j.jbiosc.2016.09.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 09/10/2016] [Accepted: 09/14/2016] [Indexed: 12/31/2022]
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Kamiya H, Miyamoto S, Goto H, Kanda GN, Kobayashi M, Matsuoka I, Harashima H. Enhanced transgene expression from chromatinized plasmid DNA in mouse liver. Int J Pharm 2012; 441:146-50. [PMID: 23247018 DOI: 10.1016/j.ijpharm.2012.12.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2012] [Revised: 10/30/2012] [Accepted: 12/05/2012] [Indexed: 01/22/2023]
Abstract
Plasmid DNA was chromatinized with core histones (H2A, H2B, H3, and H4) in vitro and was delivered into mouse liver by hydrodynamics-based administration. Transgene expression from the chromatinized plasmid DNA was more efficient than that from plasmid DNA delivered in the naked form. The use of acetylation-enriched histones isolated from cells treated with a histone deacetylase inhibitor (trichostatin A) seemed to be more effective. These results indicated that chromatinized plasmid DNA is useful for efficient transgene expression in vivo.
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Affiliation(s)
- Hiroyuki Kamiya
- Graduate School of Science and Engineering, Ehime University, Matsuyama 790-8577, Japan.
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Fukunaga S, Kanda G, Tanase J, Harashima H, Ohyama T, Kamiya H. A designed curved DNA sequence remarkably enhances transgene expression from plasmid DNA in mouse liver. Gene Ther 2011; 19:828-35. [DOI: 10.1038/gt.2011.127] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Ito M, Suda Y, Harashima H, Kamiya H. Cytotoxic effect of Drosophila deoxynucleoside kinase gene on replicating plasmid in HeLa cells. Biol Pharm Bull 2010; 33:1223-7. [PMID: 20606317 DOI: 10.1248/bpb.33.1223] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
To enhance the levels of transgene expression from plasmid-based nonviral vectors, replicating plasmids containing the SV40 origin and the SV40 large T antigen gene, as a model replicating unit, were constructed. The replicating luciferase plasmid DNA produced the luciferase protein more efficiently than the non-replicating luciferase plasmid DNA, as expected. Surprisingly, the introduction of the replicating plasmid DNA containing the Drosophila melanogaster deoxyribonucleoside kinase (Dm-dNK) gene was highly cytotoxic and caused cell death without nucleoside analogs. Our results confirm that transgenes on a replicating plasmid represent an excellent tool for effective protein production and suggest that efficient production of the Dm-dNK protein in tumor cells could be an attractive cancer therapy.
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Affiliation(s)
- Mana Ito
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan
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Kamiya H, Goto H, Kanda G, Yamada Y, Harashima H. Transgene expression efficiency from plasmid DNA delivered as a complex with histone H3. Int J Pharm 2010; 392:249-53. [DOI: 10.1016/j.ijpharm.2010.03.035] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2009] [Revised: 03/08/2010] [Accepted: 03/11/2010] [Indexed: 10/19/2022]
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