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Lotfi M, Morshedi Rad D, Mashhadi SS, Ashouri A, Mojarrad M, Mozaffari-Jovin S, Farrokhi S, Hashemi M, Lotfi M, Ebrahimi Warkiani M, Abbaszadegan MR. Recent Advances in CRISPR/Cas9 Delivery Approaches for Therapeutic Gene Editing of Stem Cells. Stem Cell Rev Rep 2023; 19:2576-2596. [PMID: 37723364 PMCID: PMC10661828 DOI: 10.1007/s12015-023-10585-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/30/2023] [Indexed: 09/20/2023]
Abstract
Rapid advancement in genome editing technologies has provided new promises for treating neoplasia, cardiovascular, neurodegenerative, and monogenic disorders. Recently, the clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated protein 9 (Cas9) system has emerged as a powerful gene editing tool offering advantages, including high editing efficiency and low cost over the conventional approaches. Human pluripotent stem cells (hPSCs), with their great proliferation and differentiation potential into different cell types, have been exploited in stem cell-based therapy. The potential of hPSCs and the capabilities of CRISPR/Cas9 genome editing has been paradigm-shifting in medical genetics for over two decades. Since hPSCs are categorized as hard-to-transfect cells, there is a critical demand to develop an appropriate and effective approach for CRISPR/Cas9 delivery into these cells. This review focuses on various strategies for CRISPR/Cas9 delivery in stem cells.
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Affiliation(s)
- Malihe Lotfi
- Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
- Medical Genetics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Medical Genetics and Molecular Medicine, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Dorsa Morshedi Rad
- School of Biomedical Engineering, University of Technology Sydney, Sydney, Australia
| | - Samaneh Sharif Mashhadi
- Medical Genetics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Medical Genetics and Molecular Medicine, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Atefeh Ashouri
- Medical Genetics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Medical Genetics and Molecular Medicine, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Majid Mojarrad
- Medical Genetics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Medical Genetics and Molecular Medicine, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Sina Mozaffari-Jovin
- Medical Genetics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Medical Genetics and Molecular Medicine, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Shima Farrokhi
- Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Medical Genetics and Molecular Medicine, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Maryam Hashemi
- Nanotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Marzieh Lotfi
- Department of Medical Genetics, School of Medicine, Shahid Sadoughi University of Medical Sciences and Health Services, Yazd, Iran
| | - Majid Ebrahimi Warkiani
- School of Biomedical Engineering, University of Technology Sydney, Sydney, Australia.
- Institute for Biomedical Materials and Devices (IBMD), Faculty of Science, University of Technology Sydney, Sydney, Australia.
| | - Mohammad Reza Abbaszadegan
- Medical Genetics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
- Department of Medical Genetics and Molecular Medicine, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
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Bhujbal S, Bhujbal R, Giram P. An overview: CRISPR/Cas-based gene editing for viral vaccine development. Expert Rev Vaccines 2022; 21:1581-1593. [PMID: 35959589 DOI: 10.1080/14760584.2022.2112952] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION : Gene-editing technology revolutionized vaccine manufacturing and offers a variety of benefits over traditional vaccinations, such as improved immune response, higher production rate, stability, precise immunogenic activity, and fewer adverse effects. The more recently discovered Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR)/associated protein 9 (Cas9) system has become the most widely utilized technology based on its efficiency, utility, flexibility, versatility, ease of use, and cheaper compared to other gene-editing techniques. Considering its wider scope for genomic modification, CRISPR/Cas9-based technology's potential is explored for vaccine development. AREAS COVERED : In this review, we will address the recent advances in the CRISPR/Cas system for the development of vaccines and viral vectors for delivery. In addition, we will discuss strategies for the development of the vaccine, as well as the limitations and future prospects of the CRISPR/Cas system. EXPERT OPINION : Human and animal viruses have been exposed to antiviral CRISPR/Cas9-based engineering to prevent infection, which uses knockout, knock-in, gene activation/deactivation, RNA targeting, and editing cell lines strategies for gene editing of viruses. Because of that CRISPR/Cas system is used to boost the vaccine production yield by removing unwanted genes that cause disease or are required for viral infection.
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Affiliation(s)
- Santosh Bhujbal
- Department of Pharmacognosy, Dr. D. Y. Patil Institute of Pharmaceutical Sciences and Research, Sant. Tukaram Nagar Pimpri, Pune, Maharashtra (India) -411018
| | - Rushikesh Bhujbal
- Department of Quality Assurance Technique, Dr. D. Y. Patil Institute of Pharmaceutical Sciences and Research, Sant. Tukaram Nagar Pimpri, Pune, Maharashtra (India) -411018
| | - Prabhanjan Giram
- Department of Pharmaceutics, Dr. D. Y. Patil Institute of Pharmaceutical Sciences and Research, Sant. Tukaram Nagar Pimpri, Pune, Maharashtra (India) -411018.,Department of Pharmaceutics, Department of Pharmaceutical Sciences, University at Buffalo, State University of New York, Buffalo, NY, USA- 14260-1660
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Mashel TV, Tarakanchikova YV, Muslimov AR, Zyuzin MV, Timin AS, Lepik KV, Fehse B. Overcoming the delivery problem for therapeutic genome editing: Current status and perspective of non-viral methods. Biomaterials 2020; 258:120282. [DOI: 10.1016/j.biomaterials.2020.120282] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 07/22/2020] [Accepted: 08/01/2020] [Indexed: 12/11/2022]
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Viral Delivery Systems for CRISPR. Viruses 2019; 11:v11010028. [PMID: 30621179 PMCID: PMC6356701 DOI: 10.3390/v11010028] [Citation(s) in RCA: 141] [Impact Index Per Article: 28.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 12/31/2018] [Accepted: 01/01/2019] [Indexed: 12/16/2022] Open
Abstract
The frontiers of precision medicine have been revolutionized by the development of Clustered Regularly-Interspaced Short Palindromic Repeats (CRISPR)/Cas9 as an editing tool. CRISPR/Cas9 has been used to develop animal models, understand disease mechanisms, and validate treatment targets. In addition, it is regarded as an effective tool for genome surgery when combined with viral delivery vectors. In this article, we will explore the various viral mechanisms for delivering CRISPR/Cas9 into tissues and cells, as well as the benefits and drawbacks of each method. We will also review the history and recent development of CRISPR and viral vectors and discuss their applications as a powerful tool in furthering our exploration of disease mechanisms and therapies.
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Translational Advances of Hydrofection by Hydrodynamic Injection. Genes (Basel) 2018; 9:genes9030136. [PMID: 29494564 PMCID: PMC5867857 DOI: 10.3390/genes9030136] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Revised: 02/20/2018] [Accepted: 02/21/2018] [Indexed: 12/11/2022] Open
Abstract
Hydrodynamic gene delivery has proven to be a safe and efficient procedure for gene transfer, able to mediate, in murine model, therapeutic levels of proteins encoded by the transfected gene. In different disease models and targeting distinct organs, it has been demonstrated to revert the pathologic symptoms and signs. The therapeutic potential of hydrofection led different groups to work on the clinical translation of the procedure. In order to prevent the hemodynamic side effects derived from the rapid injection of a large volume, the conditions had to be moderated to make them compatible with its use in mid-size animal models such as rat, hamster and rabbit and large animals as dog, pig and primates. Despite the different approaches performed to adapt the conditions of gene delivery, the results obtained in any of these mid-size and large animals have been poorer than those obtained in murine model. Among these different strategies to reduce the volume employed, the most effective one has been to exclude the vasculature of the target organ and inject the solution directly. This procedure has permitted, by catheterization and surgical procedures in large animals, achieving protein expression levels in tissue close to those achieved in gold standard models. These promising results and the possibility of employing these strategies to transfer gene constructs able to edit genes, such as CRISPR, have renewed the clinical interest of this procedure of gene transfer. In order to translate the hydrodynamic gene delivery to human use, it is demanding the standardization of the procedure conditions and the molecular parameters of evaluation in order to be able to compare the results and establish a homogeneous manner of expressing the data obtained, as ‘classic’ drugs.
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Schmidt M, Gil-Farina I, Büning H. Reply to "Wild-type AAV Insertions in Hepatocellular Carcinoma Do Not Inform Debate Over Genotoxicity Risk of Vectorized AAV". Mol Ther 2016; 24:661-2. [PMID: 27081718 DOI: 10.1038/mt.2016.48] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Affiliation(s)
- Manfred Schmidt
- Department of Translational Oncology, German Cancer Research Center (DKFZ), National Center for Tumor Diseases (NCT), Heidelberg, Germany
| | - Irene Gil-Farina
- Department of Translational Oncology, German Cancer Research Center (DKFZ), National Center for Tumor Diseases (NCT), Heidelberg, Germany
| | - Hildegard Büning
- Institute of Experimental Hematology, Hannover Medical School, Hannover, Germany
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Gene therapy for hemophilia B mice with scAAV8-LP1-hFIX. Front Med 2016; 10:212-8. [DOI: 10.1007/s11684-016-0438-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Accepted: 01/15/2016] [Indexed: 11/26/2022]
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Musayev FN, Zarate-Perez F, Bishop C, Burgner JW, Escalante CR. Structural Insights into the Assembly of the Adeno-associated Virus Type 2 Rep68 Protein on the Integration Site AAVS1. J Biol Chem 2015; 290:27487-99. [PMID: 26370092 DOI: 10.1074/jbc.m115.669960] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Indexed: 11/06/2022] Open
Abstract
Adeno-associated virus (AAV) is the only eukaryotic virus with the property of establishing latency by integrating site-specifically into the human genome. The integration site known as AAVS1 is located in chromosome 19 and contains multiple GCTC repeats that are recognized by the AAV non-structural Rep proteins. These proteins are multifunctional, with an N-terminal origin-binding domain (OBD) and a helicase domain joined together by a short linker. As a first step to understand the process of site-specific integration, we proceeded to characterize the recognition and assembly of Rep68 onto the AAVS1 site. We first determined the x-ray structure of AAV-2 Rep68 OBD in complex with the AAVS1 DNA site. Specificity is achieved through the interaction of a glycine-rich loop that binds the major groove and an α-helix that interacts with a downstream minor groove on the same face of the DNA. Although the structure shows a complex with three OBD molecules bound to the AAVS1 site, we show by using analytical centrifugation and electron microscopy that the full-length Rep68 forms a heptameric complex. Moreover, we determined that a minimum of two direct repeats is required to form a stable complex and to melt DNA. Finally, we show that although the individual domains bind DNA poorly, complex assembly requires oligomerization and cooperation between its OBD, helicase, and the linker domains.
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Affiliation(s)
- Faik N Musayev
- From the Department of Medicinal Chemistry, School of Pharmacy, and
| | - Francisco Zarate-Perez
- Department of Physiology and Biophysics, School of Medicine, Virginia Commonwealth University, Richmond, Virginia 23298
| | - Clayton Bishop
- Department of Physiology and Biophysics, School of Medicine, Virginia Commonwealth University, Richmond, Virginia 23298
| | - John W Burgner
- Department of Physiology and Biophysics, School of Medicine, Virginia Commonwealth University, Richmond, Virginia 23298
| | - Carlos R Escalante
- Department of Physiology and Biophysics, School of Medicine, Virginia Commonwealth University, Richmond, Virginia 23298
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Xu Z, Ye J, Zhang A, Xie L, Shen Q, Xue J, Chen J. Gene Therapy for Hemophilia B With Liver-specific Element Mediated by Rep-RBE Site-specific Integration System. J Cardiovasc Pharmacol 2015; 65:153-9. [DOI: 10.1097/fjc.0000000000000172] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Abstract
Glucagon-like peptide (GLP)-1 is an incretin hormone with several antidiabetic functions including stimulation of glucose-dependent insulin secretion, increase in insulin gene expression and beta-cell survival. Despite the initial technical difficulties and profound inefficiency of direct gene transfer into the pancreas that seriously restricted in vivo gene transfer experiments with GLP-1, recent exploitation of various routes of gene delivery and alternative means of gene transfer has permitted the detailed assessment of the therapeutic efficacy of GLP-1 in animal models of type 2 diabetes (T2DM). As a result, many clinical benefits of GLP-1 peptide/analogues observed in clinical trials involving induction of glucose tolerance, reduction of hyperglycaemia, suppression of appetite and food intake linked to weight loss have been replicated in animal models using gene therapy. Furthermore, GLP-1-centered gene therapy not only improved insulin sensitivity, but also reduced abdominal and/or hepatic fat associated with obesity-induced T2DM with drastic alterations in adipokine profiles in treated subjects. Thus, a comprehensive assessment of recent GLP-1-mediated gene therapy approaches with detailed analysis of current hurdles and resolutions, is discussed.
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Xiang Q, Huang L, Guo S, Chen F, Zha X, Chen B, Sun L, Zhou H, Liu D. A method mediated AAVS1 recombination with Rep mRNA and homologous arms. Acta Biochim Biophys Sin (Shanghai) 2012; 44:1015-22. [PMID: 23034483 DOI: 10.1093/abbs/gms076] [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] [Indexed: 01/28/2023] Open
Abstract
The adeno-associated virus (AAV) genome can be stably integrated into the AAVS1 region of human chromosome 19 (19q13.4-qter) with the assistance of Rep68/78 protein. In the current models of AAV integration in a locus-specific manner, the foreign genes were randomly inserted into the AAVS1 region, which contains several functional genes. As random integration in this region may lead to insertion mutations and disrupt normal gene expression or critical signaling pathways of the host cells, it is necessary to find a precise insertion site in the AAVS1 region. Homologous recombination is the most accurate and versatile mechanism for such site-specific integration. To investigate site-specific integration in the AAVS1 region, a targeted vector containing two homologous arms derived from AAVS1 and a reporter gene was transfected into HeLa cells with or without Rep68/78 mRNA. The results indicated that transient expression of Rep68/78 in HeLa cells improved integration of the gene of interest at the AAVS1 locus in a site-specific manner. Compared with locus-specific integration reported in previous studies, site-specific integration may minimize the risk associated with random DNA integration in the AAVS1 region, which might be helpful for gene therapy.
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Affiliation(s)
- Qiantong Xiang
- Department of Biochemistry and Molecular Biology, Anhui Medical University, Hefei 230032, China
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Liu R, Li Y, Hu R, Jin T, Deng S, Liang W, Zhang N, Chen J, Prud'homme GJ, Jia WW, Ma D, Wang Q. A site-specific genomic integration strategy for sustained expression of glucagon-like peptide-1 in mouse muscle for controlling energy homeostasis. Biochem Biophys Res Commun 2010; 403:172-7. [PMID: 21070745 DOI: 10.1016/j.bbrc.2010.10.131] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2010] [Accepted: 10/27/2010] [Indexed: 11/29/2022]
Abstract
The incretin hormone glucagon-like peptide-1 (GLP-1) exerts important functions in controlling glucose and energy homeostasis. Endogenous GLP-1 has a very short half-life due to DPP-IV-mediated degradation and renal clearance, which limits the therapeutic use of native GLP-1. We have shown previously that immunoglobulin fragment-fused GLP-1 (GLP-1/Fc) is a structurally stable GLP-1 analog. Here, we report a non-viral GLP-1/Fc gene therapy strategy utilizing a REP78-in-trans and REB-in-cis element system to achieve a site-specific genomic integration. For this purpose, the GLP-1/Fc expression cassette, which is fused with the RBE element, was co-injected with the Rep78 plasmid into the muscles of transgenic mice carrying the AAVS1 locus of human chromosome 19. The Rep protein-mediated site-specific integration was demonstrated by nested PCR, dot-blot, and Southern blotting. We found that this approach reduced weight gain and improved lipid profiles in the AAVS1-mice on high-fat diet challenge. Our observations reveal a new GLP-1 therapeutic strategy with an apparent absence of side effects, which may find applications in diabetes treatment and obesity prevention.
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Affiliation(s)
- Rui Liu
- Department of Endocrinology, Hua Shan Hospital, Fudan University, Shanghai, China
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Yue YB, Xue YY, Tian L, Xue JL, Chen JZ, Jia W. Functional differentiation between Rep-mediated site-specific integration and transcriptional repression of the adeno-associated viral p5 promoter. Hum Gene Ther 2010; 21:728-38. [PMID: 20070175 DOI: 10.1089/hum.2009.192] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The adeno-associated virus (AAV) p5 promoter controls expression of Rep68 and Rep78, which are responsible for specific integration of the viral genome into the AAVS1 site of the human genome. The p5 promoter contains a Rep-binding element (RBE) sequence that acts as a substrate of the Rep proteins for both site-specific integration of p5 itself and transcriptional suppression of the p5 promoter. To differentiate these two Rep-mediated functions, we dissected the p5 core structure TATA/RBE/YY1+1 through a series of mutations. Mutations in the TATA box or YY1+1 region of p5IEE significantly reduced Rep-mediated site-specific integration (RMSSI) and p5 promoter transcriptional activity, but only the TATA box is involved in Rep-mediated transcriptional suppression (RMTS). Point mutations at nucleotides 266, 267, 268, 270, and 273 of the GAGTGAGC motif in p5 RBE significantly reduced RMSSI efficiency. However, only p5G270T lost the affinity of Rep binding and had significant reduction of RMTS. It appears that RMTS is determined by the affinity of p5RBE for Rep whereas RMSSI requires more stringent conditions. Thus, RMTS and RMSSI can be differentiated by point mutations in the p5 promoter, which is useful in gene therapy in a helper vector to drive Rep expression, as the mutant promoters seldom integrate themselves but remain the RMTS feature for reduced cytotoxicity caused by a high level of Rep protein.
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Affiliation(s)
- Yang-bo Yue
- State Key Laboratory of Genetic Engineering, Institute of Genetics, School of Life Sciences, Fudan University, Shanghai, China
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Eggenhofer E, Doenecke A, Renner P, Slowik P, Piso P, Geissler EK, Schlitt HJ, Dahlke MH, Popp FC. High volume naked DNA tail-vein injection restores liver function in Fah-knock out mice. J Gastroenterol Hepatol 2010; 25:1002-8. [PMID: 20546455 DOI: 10.1111/j.1440-1746.2009.06156.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BACKGROUND Despite pharmaceutical treatment with NTBC (2-2-nitro-4-fluoromethylbenzoyl-1,3-cyclohexanedione), a high incidence of liver malignancies occur in humans and mice suffering from hereditary tyrosinemia type 1 (HT1) caused by mutation of the fumarylacetoacetate hydrolase (fah) gene. METHODS To evaluate the efficacy of a definitive treatment for HT1, we transfected fah knockout mice with naked plasmid DNA using high volume tail-vein injection. This approach was chosen to reduce the occurrence of insertional mutagenesis that is frequently observed when using other (retro-)viral vectors. To prolong gene expression, the fah gene was cloned between adeno-associated virus (AAV)-specific inverted terminal repeats (ITRs). RESULTS All animals treated with high volume plasmid DNA injections could be successfully weaned off NTBC and survived in the long term without any further pharmacological support. Up to 50% fah positive hepatocytes were detected in livers of naked plasmid DNA-treated animals and serum liver function tests approximated those of wild-type controls. CONCLUSIONS Naked plasmid DNA transfection offers a promising alternative treatment for HT1. Minimizing side-effects makes this approach especially appealing.
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Affiliation(s)
- Elke Eggenhofer
- Department of Surgery, University Medical Center Regensburg, Regensburg, Germany
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