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Nöll T, Wenderhold-Reeb S, Schönherr H, Nöll G. DNA-Hydrogele aus Plasmid-DNA. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201705001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Tanja Nöll
- Nachwuchsforschergruppe Nöll; Organische Chemie; Department Chemie und Biologie; Universität Siegen; Adolf-Reichwein-Straße 2 57068 Siegen Deutschland
| | - Sabine Wenderhold-Reeb
- Nachwuchsforschergruppe Nöll; Organische Chemie; Department Chemie und Biologie; Universität Siegen; Adolf-Reichwein-Straße 2 57068 Siegen Deutschland
| | - Holger Schönherr
- Physikalische Chemie I; Research Center of Micro and Nanochemistry and Engineering (Cμ); Department Chemie und Biologie; Universität Siegen; Adolf-Reichwein-Straße 2 57076 Siegen Deutschland
| | - Gilbert Nöll
- Nachwuchsforschergruppe Nöll; Organische Chemie; Department Chemie und Biologie; Universität Siegen; Adolf-Reichwein-Straße 2 57068 Siegen Deutschland
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Nöll T, Wenderhold-Reeb S, Schönherr H, Nöll G. Pristine DNA Hydrogels from Biotechnologically Derived Plasmid DNA. Angew Chem Int Ed Engl 2017; 56:12004-12008. [DOI: 10.1002/anie.201705001] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Indexed: 02/02/2023]
Affiliation(s)
- Tanja Nöll
- Nöll Research Group; Organic Chemistry; Department of Chemistry and Biology, School of Science and Technology; University of Siegen; Adolf-Reichwein-Strasse 2 57068 Siegen Germany
| | - Sabine Wenderhold-Reeb
- Nöll Research Group; Organic Chemistry; Department of Chemistry and Biology, School of Science and Technology; University of Siegen; Adolf-Reichwein-Strasse 2 57068 Siegen Germany
| | - Holger Schönherr
- Physical Chemistry I and Research Center of Micro and Nanochemistry and Engineering (Cμ); Department of Chemistry and Biology; University of Siegen; Adolf-Reichwein-Strasse 2 57076 Siegen Germany
| | - Gilbert Nöll
- Nöll Research Group; Organic Chemistry; Department of Chemistry and Biology, School of Science and Technology; University of Siegen; Adolf-Reichwein-Strasse 2 57068 Siegen Germany
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Hou XH, Guo XY, Chen Y, He CY, Chen ZY. Increasing the minicircle DNA purity using an enhanced triplex DNA technology to eliminate DNA contaminants. Mol Ther Methods Clin Dev 2015; 1:14062. [PMID: 26052527 PMCID: PMC4449018 DOI: 10.1038/mtm.2014.62] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2014] [Accepted: 11/24/2014] [Indexed: 12/01/2022]
Abstract
DNA vectors for human gene therapy have to meet the efficacy and safety requirements. Minicircles (MCs), a class of optimized DNA vectors free of plasmid backbone (PB) DNAs, have emerged as promising candidates because of their superior transgene expression profiles. However, the existence of impure DNAs, including the unrecombined MC producing plasmid (PP) and PB circle, in the MC products made using the current technologies exceed the safety limit. Here, we report the development of an enhanced triplex DNA (TriD) technology to eliminate almost all the impure DNAs from the MC products. To do this, a pair of optimized TriD forming sequences was placed to flank the kanamycin resistance gene in the PP. The MC products were incubated with a biotinylated TriD forming DNA oligonucleotide (olig), and the resulted TriDs were removed by binding to streptovidin-coated magnetic beads. Consequently, the residual impure DNAs were 0.03% or less in the final MC products. The reproducibility of this technique was confirmed with MCs of various transgene expression cassettes, sizes, and quantities, suggesting its great potential in making high quality MC for human gene therapy.
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Affiliation(s)
- Xiaohu H Hou
- The Laboratory for Gene and Cell Therapy, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Xiaoyan Y Guo
- The Laboratory for Gene and Cell Therapy, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
- Department of Infectious Diseases, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Yusheng Chen
- The Laboratory for Gene and Cell Therapy, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Cheng-Yi He
- The Laboratory for Gene and Cell Therapy, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Zhi-Ying Chen
- The Laboratory for Gene and Cell Therapy, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
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Walther W, Schmeer M, Kobelt D, Baier R, Harder A, Walhorn V, Anselmetti D, Aumann J, Fichtner I, Schleef M. A Seven-Year Storage Report of Good Manufacturing Practice–Grade Naked Plasmid DNA: Stability, Topology, and In Vitro/In Vivo Functional Analysis. HUM GENE THER CL DEV 2013; 24:147-53. [DOI: 10.1089/humc.2013.067] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Affiliation(s)
- Wolfgang Walther
- Experimental and Clinical Research Center, Charité University Medicine Berlin, Max-Delbrück-Center for Molecular Medicine, 13125 Berlin, Germany
| | - Marco Schmeer
- PlasmidFactory GmbH & Co. KG, 33607 Bielefeld, Germany
| | - Dennis Kobelt
- Max-Delbrück-Center for Molecular Medicine, 13125 Berlin, Germany
| | - Ruth Baier
- PlasmidFactory GmbH & Co. KG, 33607 Bielefeld, Germany
| | - Alexander Harder
- Experimental Biophysics & Applied Nanoscience, Faculty of Physics, and Bielefeld Institute of Biophysics and Nanoscience, Bielefeld University, 33615 Bielefeld, Germany
| | - Volker Walhorn
- Experimental Biophysics & Applied Nanoscience, Faculty of Physics, and Bielefeld Institute of Biophysics and Nanoscience, Bielefeld University, 33615 Bielefeld, Germany
| | - Dario Anselmetti
- Experimental Biophysics & Applied Nanoscience, Faculty of Physics, and Bielefeld Institute of Biophysics and Nanoscience, Bielefeld University, 33615 Bielefeld, Germany
| | - Jutta Aumann
- Experimental and Clinical Research Center, Charité University Medicine Berlin, Max-Delbrück-Center for Molecular Medicine, 13125 Berlin, Germany
| | - Iduna Fichtner
- Max-Delbrück-Center for Molecular Medicine, 13125 Berlin, Germany
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Bo H, Wang J, Chen Q, Shen H, Wu F, Shao H, Huang S. Using a single hydrophobic-interaction chromatography to purify pharmaceutical-grade supercoiled plasmid DNA from other isoforms. PHARMACEUTICAL BIOLOGY 2013; 51:42-48. [PMID: 23013372 DOI: 10.3109/13880209.2012.703678] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
CONTEXT The recent developments in non-viral gene therapy and DNA vaccine have fostered the development of efficient plasmid DNA (pDNA) purification processes. OBJECTIVES This work aimed to establish a cost-effective purification process for the large-scale production of plasmid DNA for gene therapy and DNA vaccine. MATERIALS AND METHODS E. coli DH5α harboring pCDNA3.1-GFP (7200 base pairs) was used as a model plasmid. Hydrophobic-interaction chromatography (HIC) was employed to purify supercoiled plasmid DNA (sc pDNA). RESULTS With this method, not only host contaminants, but also open circular plasmid DNA (oc pDNA) could be removed from sc pDNA. Anion-exchange HPLC analysis proved that the recovery of HIC could reach 75%. The plasmid DNA exhibited high purity with supercoiled percentage of 98 ± 1.2% and undetectable residual endotoxins, genomic DNA, RNA and protein. The purity of pDNA had nothing to do with the flow rate in the range at least up to 400 cm/h. Liposomes transfection experiment prove that the purified pDNA in this article had higher transfection efficiency than the control pDNA. DISCUSSION AND CONCLUSION In the present work, we confirmed the possibility of separation of sc pDNA from oc pDNA and other host contaminants using a single HIC chromatography.
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Affiliation(s)
- Huaben Bo
- Institute of Genetic Engineering, Southern Medical University, Guangzhou, PR China
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Abstract
Plasmid DNA (pDNA) is the base for promising DNA vaccines and gene therapies against many infectious, acquired, and genetic diseases, including HIV-AIDS, Ebola, Malaria, and different types of cancer, enteric pathogens, and influenza. Compared to conventional vaccines, DNA vaccines have many advantages such as high stability, not being infectious, focusing the immune response to only those antigens desired for immunization and long-term persistence of the vaccine protection. Especially in developing countries, where conventional effective vaccines are often unavailable or too expensive, there is a need for both new and improved vaccines. Therefore the demand of pDNA is expected to rise significantly in the near future. Since the injection of pDNA usually only leads to a weak immune response, several milligrams of DNA vaccine are necessary for immunization protection. Hence, there is a special interest to raise the product yield in order to reduce manufacturing costs. In this chapter, the different stages of plasmid DNA production are reviewed, from the vector design to downstream operation options. In particular, recent advances on cell engineering for improving plasmid DNA production are discussed.
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Affiliation(s)
- Alvaro R Lara
- Departamento de Procesos y Tecnología, Universidad Autónoma Metropolitana-Cuajimalpa, Mexico City, Mexico.
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Complete sequence and organization of the Sphingobium chungbukense DJ77 pSY2 plasmid. J Microbiol 2011; 49:684-8. [DOI: 10.1007/s12275-011-1262-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2011] [Accepted: 06/30/2011] [Indexed: 11/25/2022]
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Therapeutic strategies for SLE involving cytokines: mechanism-oriented therapies especially IFN-gamma targeting gene therapy. J Biomed Biotechnol 2010; 2010. [PMID: 20827419 PMCID: PMC2933908 DOI: 10.1155/2010/461641] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2010] [Accepted: 06/25/2010] [Indexed: 01/22/2023] Open
Abstract
Systemic lupus erythematosus (SLE: lupus) is a chronic complicated autoimmune disease and pathogenesis is still unclear. However, key cytokines have been recognized. Interferon (IFN)-γ and also IFNalpha/beta are of particular importance. Depending on the concept that lupus is a helper T(Th)1 disease and that dendritic cells (DCs) determine the direction of lupus, balance shift of Th1/Th2 and immunogenic/tolerogenic DCs is reviewed for therapy. (IFN)-gamma- and IFN-alpha/beta-targeted (gene) therapies are introduced. These consist of Th1/Th2 balance shift and elimination of IFN-gamma and IFN-gamma-related cytokines such as (interleukin)IL-12 and IL-18. Other approaches include suppression of immunocompetent cells, normalization of abnormal T-cell function, costimulation blockade, B lymphocyte stimulator (Blys) blockade, and suppression of nephritic kidney inflammation. Moreover, balance shift of IFN-alpha/beta and tumor necrosis factor (TNF)-alpha together with regulatory T(Treg) cells are briefly introduced. Clinical application will be discussed.
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Cai Y, Rodriguez S, Rameswaran R, Draghia-Akli R, Juba RJ, Hebel H. Production of pharmaceutical-grade plasmids at high concentration and high supercoiled percentage. Vaccine 2009; 28:2046-52. [PMID: 19896448 DOI: 10.1016/j.vaccine.2009.10.057] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
The increased use of plasmid-based vaccines to replace their more challenging viral counterparts has increased the demand for high purity and high concentration plasmids. Here we report the production of plasmids encoding different transgenes for DNA vaccine candidates at gram scale with an integrated process consisting of batch fermentation and limited steps of purification. Plasmid products encoding for eight smallpox antigens that were combined into a bioterrorism DNA vaccine exhibited high purity with undetectable RNA, protein and endotoxin, concentration of up to 13.6mg/mL and supercoiled percentage of 94.5+/-1.1% after storage at -80 degrees C for over 1 year. The process has been scaled up for the cGMP manufacture of pharmaceutical-grade human papillomavirus and influenza DNA vaccines up to a 50g scale, also demonstrating high purity and high concentration.
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Affiliation(s)
- Ying Cai
- VGX Pharmaceuticals, Inc., The Woodlands, TX 77381, United States
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Generation of chromosomal DNA during alkaline lysis and removal by reverse micellar extraction. Appl Microbiol Biotechnol 2009; 84:199-204. [DOI: 10.1007/s00253-009-2088-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2009] [Revised: 06/09/2009] [Accepted: 06/09/2009] [Indexed: 11/25/2022]
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Luechau F, Ling TC, Lyddiatt A. Primary capture of high molecular weight nucleic acids using aqueous two-phase systems. Sep Purif Technol 2009. [DOI: 10.1016/j.seppur.2008.12.008] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Voß C. Downstream Processing of Plasmid DNA for Gene Therapy and Genetic Vaccination. Chem Eng Technol 2008. [DOI: 10.1002/ceat.200800069] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Streitner N, Voß C, Flaschel E. Isolierung von Plasmid-DNA durch inversmizellare Zweiphasensysteme – Optimierung der Rückextraktion. CHEM-ING-TECH 2008. [DOI: 10.1002/cite.200800037] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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