1
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Božič K, Sedlar A, Kralj Š, Černigoj U, Štrancar A, Sekirnik R. Selective hydrophobic interaction chromatography for high purity of supercoiled DNA plasmids. Biotechnol Bioeng 2024; 121:1739-1749. [PMID: 38351874 DOI: 10.1002/bit.28667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 01/05/2024] [Accepted: 01/21/2024] [Indexed: 02/20/2024]
Abstract
High purity of plasmid DNA (pDNA), particularly in supercoiled isoform (SC), is used for various biopharmaceutical applications, such as a transfecting agent for production of gene therapy viral vectors, for pDNA vaccines, or as a precursor for linearized form that serves as a template for mRNA synthesis. In clinical manufacturing, pDNA is commonly extracted from Escherichia coli cells with alkaline lysis followed by anion exchange chromatography or tangential flow filtration as a capture step for pDNA. Both methods remove a high degree of host cell contaminants but are unable to generically discriminate between SC and open-circular (OC) pDNA isoforms, as well as other DNA impurities, such as genomic DNA (gDNA). Hydrophobic interaction chromatography (HIC) is commonly used as polishing purification for pDNA. We developed HIC-based polishing purification methodology that is highly selective for enrichment of SC pDNA. It is generic with respect to plasmid size, scalable, and GMP compatible. The technique uses ammonium sulfate, a kosmotropic salt, at a concentration selective for SC pDNA binding to a butyl monolith column, while OC pDNA and gDNA are removed in flow-through. The approach is validated on multiple adeno-associated virus- and mRNA-encoding plasmids ranging from 3 to 12 kbp. We show good scalability to at least 300 mg of >95% SC pDNA, thus paving the way to increase the quality of genomic medicines that utilize pDNA as a key raw material.
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Affiliation(s)
- Klemen Božič
- Sartorius BIA Separations d.o.o., Ajdovščina, Slovenia
| | - Ajda Sedlar
- Sartorius BIA Separations d.o.o., Ajdovščina, Slovenia
| | - Špela Kralj
- Sartorius BIA Separations d.o.o., Ajdovščina, Slovenia
| | - Urh Černigoj
- Sartorius BIA Separations d.o.o., Ajdovščina, Slovenia
| | - Aleš Štrancar
- Sartorius BIA Separations d.o.o., Ajdovščina, Slovenia
| | - Rok Sekirnik
- Sartorius BIA Separations d.o.o., Ajdovščina, Slovenia
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Ribeiro J, Luís MÂ, Rodrigues B, Santos FM, Mesquita J, Boto R, Tomaz CT. Cryogels and Monoliths: Promising Tools for Chromatographic Purification of Nucleic Acids. Gels 2024; 10:198. [PMID: 38534616 DOI: 10.3390/gels10030198] [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: 02/17/2024] [Revised: 03/09/2024] [Accepted: 03/11/2024] [Indexed: 03/28/2024] Open
Abstract
The increasing demand for highly pure biopharmaceuticals has put significant pressure on the biotechnological industry to innovate in production and purification processes. Nucleic acid purification, crucial for gene therapy and vaccine production, presents challenges due to the unique physical and chemical properties of these molecules. Meeting regulatory standards necessitates large quantities of biotherapeutic agents of high purity. While conventional chromatography offers versatility and efficiency, it suffers from drawbacks like low flow rates and binding capacity, as well as high mass transfer resistance. Recent advancements in continuous beds, including monoliths and cryogel-based systems, have emerged as promising solutions to overcome these limitations. This review explores and evaluates the latest progress in chromatography utilizing monolithic and cryogenic supports for nucleic acid purification.
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Affiliation(s)
- João Ribeiro
- CICS-UBI-Health Sciences Research Centre, University of Beira Interior, 6201-506 Covilhã, Portugal
- Department of Chemistry, University of Beira Interior, Rua Marquês de Ávila e Bolama, 6201-001 Covilhã, Portugal
| | - Marco  Luís
- CICS-UBI-Health Sciences Research Centre, University of Beira Interior, 6201-506 Covilhã, Portugal
- Department of Chemistry, University of Beira Interior, Rua Marquês de Ávila e Bolama, 6201-001 Covilhã, Portugal
| | - Bruno Rodrigues
- CICS-UBI-Health Sciences Research Centre, University of Beira Interior, 6201-506 Covilhã, Portugal
- Department of Chemistry, University of Beira Interior, Rua Marquês de Ávila e Bolama, 6201-001 Covilhã, Portugal
| | - Fátima Milhano Santos
- Functional Proteomics Laboratory, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas (CSIC), Calle Darwin 3, Campus de Cantoblanco, 28049 Madrid, Spain
| | - Joana Mesquita
- CICS-UBI-Health Sciences Research Centre, University of Beira Interior, 6201-506 Covilhã, Portugal
| | - Renato Boto
- CICS-UBI-Health Sciences Research Centre, University of Beira Interior, 6201-506 Covilhã, Portugal
- Department of Chemistry, University of Beira Interior, Rua Marquês de Ávila e Bolama, 6201-001 Covilhã, Portugal
| | - Cândida Teixeira Tomaz
- CICS-UBI-Health Sciences Research Centre, University of Beira Interior, 6201-506 Covilhã, Portugal
- Department of Chemistry, University of Beira Interior, Rua Marquês de Ávila e Bolama, 6201-001 Covilhã, Portugal
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3
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Ferreira PL, Marie H, Berger T, Edelmann B, Rammo O, Sousa F. Evaluation of novel chromatographic prototypes for supercoiled plasmid DNA polishing. Front Bioeng Biotechnol 2024; 11:1296444. [PMID: 38249801 PMCID: PMC10797707 DOI: 10.3389/fbioe.2023.1296444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Accepted: 12/15/2023] [Indexed: 01/23/2024] Open
Abstract
Since the world first approved gene therapeutics, nucleic acid-based therapies have gained prominence. Several strategies for DNA-based therapy have been approved, and numerous clinical trials for plasmid DNA (pDNA)-based vaccines are currently in development. Due to the rising interest in pDNA for vaccination and gene therapy, plasmid manufacturing must become more effective. One of the most critical steps is downstream processing, involving isolation and purification procedures. To comply with the regulatory guidelines, pDNA must be available as a highly purified, homogeneous preparation of supercoiled pDNA (sc pDNA). This process undertakes several challenges, primarily due to the diversity of molecules derived from the producer organism. In this study, different resins were tested for the adsorption and selective polishing of sc pDNA. To identify optimal pDNA adsorption conditions, batch and column assays were performed with different resins while promoting electrostatic and hydrophobic interactions. The effect of ionic strength, pH, and contact time were evaluated and optimized. Additionally, static and dynamic binding capacities were determined for the selected resins. Analytical chromatography and agarose gel electrophoresis were used to assess the selectivity of the most promising resins toward sc pDNA isoform. Also, genomic DNA, endotoxins, and proteins were quantified to characterize the final sc pDNA quality. At the same time, the recovery and purity yields were evaluated by quantification of sc pDNA after the purification procedure. Overall, the results of the chromatographic assays using agmatine- and arginine-based resins have shown promising potential for sc pDNA polishing. Both resins demonstrated excellent binding capacity for pDNA, with agmatine outperforming arginine-based resin in terms of capacity. However, arginine-based resin exhibited a superior pDNA recovery yield, reaching a notable 52.2% recovery compared to 10.09% from agmatine. Furthermore, both resins exhibited high relative purity levels above 90% for the sc pDNA. The comprehensive characterization of the recovered sc pDNA also revealed a significant reduction in gDNA levels, reinforcing the potential of these prototypes for obtaining high-quality and pure sc pDNA. These findings highlight the promising applications of both resins in scalable pDNA purification processes for gene therapy and biopharmaceutical applications.
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Affiliation(s)
- Pedro L. Ferreira
- CICS-UBI—Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal
| | | | - Tim Berger
- Merck Life Science KGaA, Darmstadt, Germany
| | | | | | - Fani Sousa
- CICS-UBI—Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal
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4
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Pavlin N, Černigoj U, Bavčar M, Plesničar T, Mavri J, Zidar M, Bone M, Kralj Savič U, Sever T, Štrancar A. Analytical separation of plasmid DNA isoforms using anion exchanging chromatographic monoliths with 6 µm channels. Electrophoresis 2023; 44:1967-1977. [PMID: 37160710 DOI: 10.1002/elps.202300031] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 04/10/2023] [Accepted: 04/18/2023] [Indexed: 05/11/2023]
Abstract
High-performance liquid chromatography (HPLC)-based analytical assays are used to effectively monitor purity and quantity of plasmid DNA (pDNA) throughout the purification process. However, the phenomenon of physical entrapment of open circular (OC) isoforms pDNA inside narrow channels of chromatographic support decreases its accuracy and precision and the effect increases with pDNA size. The purpose of the study was to develop a chromatographic method for accurate analytical separation between isoforms of <16 kbp pDNA using weak anion exchanging monolithic column with large (6 µm) convective channels. Purified samples of 4.7 and 15.4 kbp large pDNA with known isoform composition were prepared and their isoforms separated in ascending salt gradient. Both OC and supercoiled (SC) isoforms were baseline separated at a flow rate below 0.5 mL min-1 in a guanidinium chloride (GdnCl) gradient with a ≥95% OC pDNA elution recovery. However, these chromatographic conditions increased 2 times the peak width for linear (LIN) pDNA isoform compared to the results using monoliths with 1.4 µm channel size. If other chaotropic agents, such as urea or thiocyanate (SCN), were added to Gdn ions, the elution volume for LIN isoform decreased. Optimization of combined GdnCl/GdnSCN gradient for pDNA elution resulted in a simple and robust chromatographic method, where OC-LIN and LIN-SC pDNA (up to 15 kbp size) were separated with resolution above 1.0 and above 2.0, respectively. The accessibility and general acceptance of anion exchange chromatography for pDNA analytics give the newly developed method a great potential for in-process control monitoring of pDNA production processes.
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Affiliation(s)
- Nejc Pavlin
- Sartorius BIA Separations d.o.o., Ajdovscina, Slovenia
| | - Urh Černigoj
- Sartorius BIA Separations d.o.o., Ajdovscina, Slovenia
| | - Mojca Bavčar
- Sartorius BIA Separations d.o.o., Ajdovscina, Slovenia
| | | | - Jan Mavri
- Sartorius BIA Separations d.o.o., Ajdovscina, Slovenia
| | - Martin Zidar
- Sartorius BIA Separations d.o.o., Ajdovscina, Slovenia
| | - Matevž Bone
- Sartorius BIA Separations d.o.o., Ajdovscina, Slovenia
| | | | - Tadej Sever
- Sartorius BIA Separations d.o.o., Ajdovscina, Slovenia
| | - Aleš Štrancar
- Sartorius BIA Separations d.o.o., Ajdovscina, Slovenia
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5
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Kralj Š, Kodermac ŠM, Bergoč I, Kostelec T, Podgornik A, Štrancar A, Černigoj U. Effect of plasmid DNA isoforms on preparative anion exchange chromatography. Electrophoresis 2023; 44:1953-1966. [PMID: 37271857 DOI: 10.1002/elps.202300035] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 05/08/2023] [Accepted: 05/23/2023] [Indexed: 06/06/2023]
Abstract
Increased need for plasmid DNA (pDNA) with sizes above 10 kbp (large pDNA) in gene therapy and vaccination brings the need for its large-scale production with high purity. Chromatographic purification of large pDNA is often challenging due to low process yields and column clogging, especially using anion-exchanging columns. The goal of our investigation was to evaluate the mass balance and pDNA isoform composition at column outlet for plasmids of different sizes in combination with weak anion exchange (AEX) monolith columns of varying channel size (2, 3 and 6 µm channel size). We have proven that open circular pDNA (OC pDNA) isoform is an important driver of reduced chromatographic performance in AEX chromatography. The main reason for the behaviour is the entrapment of OC pDNA in chromatographic supports with smaller channel sizes. Entrapment of individual isoforms was characterised for porous beads and convective monolithic columns. Convective entrapment of OC pDNA isoform was confirmed on both types of stationary phases. Porous beads in addition showed a reduced recovery of supercoiled pDNA (on an 11.6 kbp plasmid) caused by diffusional entrapment within the porous structure. Use of convective AEX monoliths or membranes with channel diameter >3.5 µm has been shown to increase yields and prevent irreversible pressure build-up and column clogging during purification of plasmids at least up to 16 kbp in size.
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Affiliation(s)
- Špela Kralj
- Sartorius BIA Separations d.o.o., Ajdovščina, Slovenia
| | | | - Ines Bergoč
- Sartorius BIA Separations d.o.o., Ajdovščina, Slovenia
| | | | - Aleš Podgornik
- Department of Chemical Engineering and Technical Safety, Faculty of Chemistry and Chemical Technology, University of Ljubljana, Ljubljana, Slovenia
- COBIK, Ajdovščina, Slovenia
| | - Aleš Štrancar
- Sartorius BIA Separations d.o.o., Ajdovščina, Slovenia
| | - Urh Černigoj
- Sartorius BIA Separations d.o.o., Ajdovščina, Slovenia
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6
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Kiesewetter A, Gupta A, Heinen-Kreuzig A, Greenhalgh T, Stein A. Improved endotoxin removal using ecofriendly detergents for intensified plasmid capture. Biotechnol Prog 2023; 39:e3375. [PMID: 37531318 DOI: 10.1002/btpr.3375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 05/03/2023] [Accepted: 06/27/2023] [Indexed: 08/04/2023]
Abstract
Increasing plasmid demand for both production of viral and gene therapies as well as nucleic acid based vaccines has highlighted bottlenecks in production. One bottleneck is traditional bead-based chromatography as a capture step. To meet the needs of fast-growing markets, new production solutions are needed. These solutions must enable efficient capture of a diverse range of plasmid types and excellent clearance of bacterial host impurities, such as endotoxin. Enhanced endotoxin clearance during chromatographic purification has previously been demonstrated with detergents such as Triton™ X-100. However, degradation products of Triton™ X-100 are known to have a negative environmental impact, and more sustainable, environmentally benign alternatives have been identified. This work establishes an efficient, intensified plasmid capture using convective anion exchange (AEX) chromatography. The feasibility of the intensified capture approach was assessed with different membrane and a monolith AEX supports. Various detergents from different physico-chemical classes were evaluated with different AEX technologies. Purification efficiency evaluated endotoxin and host cell protein (HCP) clearance, plasmid yield, potential interference of the detergents with analytical in-process control assays, and overall process compatibility. This comprehensive screening approach provides valuable insights to intensified plasmid production.
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Affiliation(s)
- André Kiesewetter
- MilliporeSigma, The Life Science Business of Merck KGaA, Darmstadt, Germany
| | - Akshat Gupta
- MilliporeSigma, The Life Science Business of Merck KGaA, Darmstadt, Germany
| | | | - Trish Greenhalgh
- MilliporeSigma, The Life Science Business of Merck KGaA, Darmstadt, Germany
| | - Andreas Stein
- MilliporeSigma, The Life Science Business of Merck KGaA, Darmstadt, Germany
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7
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Kos S, Bosnjak M, Jesenko T, Markelc B, Kamensek U, Znidar K, Matkovic U, Rencelj A, Sersa G, Hudej R, Tuljak A, Peterka M, Cemazar M. Non-Clinical In Vitro Evaluation of Antibiotic Resistance Gene-Free Plasmids Encoding Human or Murine IL-12 Intended for First-in-Human Clinical Study. Pharmaceutics 2021; 13:pharmaceutics13101739. [PMID: 34684032 PMCID: PMC8539770 DOI: 10.3390/pharmaceutics13101739] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 10/12/2021] [Accepted: 10/14/2021] [Indexed: 11/30/2022] Open
Abstract
Interleukin 12 (IL-12) is a key cytokine that mediates antitumor activity of immune cells. To fulfill its clinical potential, the development is focused on localized delivery systems, such as gene electrotransfer, which can provide localized delivery of IL-12 to the tumor microenvironment. Gene electrotransfer of the plasmid encoding human IL-12 is already in clinical trials in USA, demonstrating positive results in the treatment of melanoma patients. To comply with EU regulatory requirements for clinical application, which recommend the use of antibiotic resistance gene-free plasmids, we constructed and developed the production process for the clinical grade quality antibiotic resistance gene-free plasmid encoding human IL-12 (p21-hIL-12-ORT) and its ortholog encoding murine IL-12 (p21-mIL-12-ORT). To demonstrate the suitability of the p21-hIL-12-ORT or p21-mIL-12-ORT plasmid for the first-in-human clinical trial, the biological activity of the expressed transgene, its level of expression and plasmid copy number were determined in vitro in the human squamous cell carcinoma cell line FaDu and the murine colon carcinoma cell line CT26. The results of the non-clinical evaluation in vitro set the basis for further in vivo testing and evaluation of antitumor activity of therapeutic molecules in murine models as well as provide crucial data for further clinical trials of the constructed antibiotic resistance gene-free plasmid in humans.
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Affiliation(s)
- Spela Kos
- Department of Experimental Oncology, Institute of Oncology Ljubljana, Zaloska cesta 2, SI-1000 Ljubljana, Slovenia; (S.K.); (M.B.); (T.J.); (B.M.); (U.K.); (K.Z.); (U.M.); (A.R.); (G.S.)
| | - Masa Bosnjak
- Department of Experimental Oncology, Institute of Oncology Ljubljana, Zaloska cesta 2, SI-1000 Ljubljana, Slovenia; (S.K.); (M.B.); (T.J.); (B.M.); (U.K.); (K.Z.); (U.M.); (A.R.); (G.S.)
- Faculty of Pharmacy, University of Ljubljana, Aškerceva ulica 7, SI-1000 Ljubljana, Slovenia
| | - Tanja Jesenko
- Department of Experimental Oncology, Institute of Oncology Ljubljana, Zaloska cesta 2, SI-1000 Ljubljana, Slovenia; (S.K.); (M.B.); (T.J.); (B.M.); (U.K.); (K.Z.); (U.M.); (A.R.); (G.S.)
- Faculty of Medicine, University of Ljubljana, Vrazov trg 2, SI-1000 Ljubljana, Slovenia
| | - Bostjan Markelc
- Department of Experimental Oncology, Institute of Oncology Ljubljana, Zaloska cesta 2, SI-1000 Ljubljana, Slovenia; (S.K.); (M.B.); (T.J.); (B.M.); (U.K.); (K.Z.); (U.M.); (A.R.); (G.S.)
- Faculty of Health Sciences, University of Ljubljana, Zdravstvena pot 5, SI-1000 Ljubljana, Slovenia
| | - Urska Kamensek
- Department of Experimental Oncology, Institute of Oncology Ljubljana, Zaloska cesta 2, SI-1000 Ljubljana, Slovenia; (S.K.); (M.B.); (T.J.); (B.M.); (U.K.); (K.Z.); (U.M.); (A.R.); (G.S.)
- Biotechnical Faculty, University of Ljubljana, Jamnikarjeva ulica 101, SI-1000 Ljubljana, Slovenia
| | - Katarina Znidar
- Department of Experimental Oncology, Institute of Oncology Ljubljana, Zaloska cesta 2, SI-1000 Ljubljana, Slovenia; (S.K.); (M.B.); (T.J.); (B.M.); (U.K.); (K.Z.); (U.M.); (A.R.); (G.S.)
| | - Urska Matkovic
- Department of Experimental Oncology, Institute of Oncology Ljubljana, Zaloska cesta 2, SI-1000 Ljubljana, Slovenia; (S.K.); (M.B.); (T.J.); (B.M.); (U.K.); (K.Z.); (U.M.); (A.R.); (G.S.)
| | - Andrej Rencelj
- Department of Experimental Oncology, Institute of Oncology Ljubljana, Zaloska cesta 2, SI-1000 Ljubljana, Slovenia; (S.K.); (M.B.); (T.J.); (B.M.); (U.K.); (K.Z.); (U.M.); (A.R.); (G.S.)
- Faculty of Medicine, University of Ljubljana, Vrazov trg 2, SI-1000 Ljubljana, Slovenia
| | - Gregor Sersa
- Department of Experimental Oncology, Institute of Oncology Ljubljana, Zaloska cesta 2, SI-1000 Ljubljana, Slovenia; (S.K.); (M.B.); (T.J.); (B.M.); (U.K.); (K.Z.); (U.M.); (A.R.); (G.S.)
- Faculty of Health Sciences, University of Ljubljana, Zdravstvena pot 5, SI-1000 Ljubljana, Slovenia
| | - Rosana Hudej
- Center Odličnosti za Biosenzoriko, Instrumentacijo in Procesno Kontrolo, Mirce 21, SI-5270 Ajdovscina, Slovenia; (R.H.); (A.T.); (M.P.)
| | - Aneja Tuljak
- Center Odličnosti za Biosenzoriko, Instrumentacijo in Procesno Kontrolo, Mirce 21, SI-5270 Ajdovscina, Slovenia; (R.H.); (A.T.); (M.P.)
| | - Matjaz Peterka
- Center Odličnosti za Biosenzoriko, Instrumentacijo in Procesno Kontrolo, Mirce 21, SI-5270 Ajdovscina, Slovenia; (R.H.); (A.T.); (M.P.)
| | - Maja Cemazar
- Department of Experimental Oncology, Institute of Oncology Ljubljana, Zaloska cesta 2, SI-1000 Ljubljana, Slovenia; (S.K.); (M.B.); (T.J.); (B.M.); (U.K.); (K.Z.); (U.M.); (A.R.); (G.S.)
- Faculty of Health Sciences, University of Primorska, Polje 42, SI-6310 Izola, Slovenia
- Correspondence: ; Tel.: +386-1-5879-544
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Černigoj U, Vidič J, Ferjančič A, Sinur U, Božič K, Mencin N, Martinčič Celjar A, Gagnon P, Štrancar A. Guanidine improves DEAE anion exchange-based analytical separation of plasmid DNA. Electrophoresis 2021; 42:2619-2625. [PMID: 34569093 DOI: 10.1002/elps.202100210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 09/04/2021] [Accepted: 09/17/2021] [Indexed: 11/10/2022]
Abstract
Elution of strong and weak anion exchangers with sodium chloride gradients is commonly employed for analysis of sample mixtures containing different isomers of plasmid DNA. Gradient elution of a weak anion exchanger (diethylaminoethyl) in the presence of guanidine hydrochloride (Gdn) roughly doubles resolution between open-circular (oc) and supercoiled (sc) isomers. It also improves resolution among sc, linear, and multimeric/aggregated forms. Sharper elution peaks with less tailing increase sensitivity about 30%. However, elution with an exclusively Gdn gradient to 900 mM causes more than 10% loss of plasmid. Elution with a sodium chloride gradient while maintaining Gdn at a level concentration of 300 mM achieves close to 100% recovery of sc plasmid while maintaining the separation improvements achieved by exclusively Gdn elution. Corresponding improvements in separation performance are not observed on a strong (quaternary amine) anion exchanger. Other chaotropic salts do not produce a favorable result on either exchanger, nor does the inclusion of surfactants or EDTA. Selectivity of the diethylaminoethyl-Gdn method is orthogonal to electrophoresis, but with better quantification than agarose electrophoresis, better quantitative accuracy than CE, and resolution approaching CE.
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Affiliation(s)
- Urh Černigoj
- BIA Separations d.o.o., a Sartorius company, Ajdovščina, Slovenia
| | - Jana Vidič
- BIA Separations d.o.o., a Sartorius company, Ajdovščina, Slovenia
| | - Ana Ferjančič
- BIA Separations d.o.o., a Sartorius company, Ajdovščina, Slovenia
| | - Urša Sinur
- BIA Separations d.o.o., a Sartorius company, Ajdovščina, Slovenia
| | - Klemen Božič
- BIA Separations d.o.o., a Sartorius company, Ajdovščina, Slovenia
| | - Nina Mencin
- BIA Separations d.o.o., a Sartorius company, Ajdovščina, Slovenia
| | | | - Pete Gagnon
- BIA Separations d.o.o., a Sartorius company, Ajdovščina, Slovenia
| | - Aleš Štrancar
- BIA Separations d.o.o., a Sartorius company, Ajdovščina, Slovenia
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9
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Černigoj U, Štrancar A. Scale-Up of Plasmid DNA Downstream Process Based on Chromatographic Monoliths. Methods Mol Biol 2021; 2197:167-192. [PMID: 32827137 DOI: 10.1007/978-1-0716-0872-2_9] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Purification of high-quality plasmid DNA in large quantities is a crucial step in its production for therapeutic use and is usually conducted by different chromatographic techniques. Large-scale preparations require the optimization of yield and homogeneity, while maximizing removal of contaminants and preserving molecular integrity. The advantages of Convective Interaction Media® (CIM®) monolith stationary phases, including low backpressure, fast separation of macromolecules, and flow-rate-independent resolution qualified them to be used effectively in separation of plasmid DNA on laboratory as well as on large scale. A development and scale-up of plasmid DNA downstream process based on chromatographic monoliths is described and discussed below. Special emphasis is put on the introduction of process analytical technology principles and tools for optimization and control of a downstream process.
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10
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Valente JFA, Queiroz JA, Sousa F. Dilemma on plasmid DNA purification: binding capacity vs selectivity. J Chromatogr A 2020; 1637:461848. [PMID: 33421679 DOI: 10.1016/j.chroma.2020.461848] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 12/21/2020] [Accepted: 12/23/2020] [Indexed: 10/22/2022]
Abstract
Plasmid DNA chromatography is a powerful field in constant development and evolution. The use of this technique is considered mandatory in the production of an efficient and safe formulation to be applied for plasmid-mediated gene therapy. Concerning this, the search for an ideal chromatographic support/ligand combination motivated scientist to pursue a continuous improvement on the plasmid chromatography performance, looking for a progression on the ligands and supports used. The present review explores the different approaches used over time to purify plasmid DNA, ambitioning both high recovery and high purity levels. Overall, it is presented a critical discussion relying on the relevance of the binding capacity versus selectivity of the supports.
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Affiliation(s)
- J F A Valente
- CICS-UBI - Health Sciences Research Centre, Universidade da Beira Interior, Avenida Infante D. Henrique, 6200-506Covilhã, Portugal; CDRSP-IPLEIRIA - Centre for Rapid and Sustainable Product Development, Instituto Politécnico de Leiria, Rua de Portugal - Zona Industrial, 2430-028Marinha Grande, Portugal
| | - J A Queiroz
- CICS-UBI - Health Sciences Research Centre, Universidade da Beira Interior, Avenida Infante D. Henrique, 6200-506Covilhã, Portugal
| | - F Sousa
- CICS-UBI - Health Sciences Research Centre, Universidade da Beira Interior, Avenida Infante D. Henrique, 6200-506Covilhã, Portugal.
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11
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A frontal analysis combined with a simultaneous chromatographic analysis of macromolecules using a single chromatographic system. J Chromatogr A 2020; 1610:460571. [PMID: 31708219 DOI: 10.1016/j.chroma.2019.460571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 09/19/2019] [Accepted: 09/25/2019] [Indexed: 11/21/2022]
Abstract
A chromatographic system was adapted to allow monitoring of eluent of preparative column via absorbance and with the chromatographic analysis of the target macromolecule on the same chromatographic system. The proposed approach was tested on important macromolecules, such as monoclonal antibodies, monoclonal antibody aggregates and plasmid DNA (pDNA). A frontal analysis was made on the preparative column, while a chromatographic on-line analysis was performed by sequentially injecting the preparative column outlet on a convection-based analytical column, operating on the same chromatographic system. Cation and/or anion exchangers were used as the chromatographic media (along with a protein A), depending on the sample to be purified. The method was found to be robust and reproducible. To adjust the limit of detection, an algorithm varying the number of injections was used, enabling accurate monitoring of an early breakthrough for concentrations below 1% of the feed concentration. The accuracy varies according to the applied flow rate, but it is typically in the range of few percent, or even below. Due to its simplicity and flexibility, the proposed method can be easily adapted to a pharmaceutical environment.
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12
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Santos T, Brito A, Boto R, Sousa P, Almeida P, Cruz C, Tomaz C. Influenza DNA vaccine purification using pHEMA cryogel support. Sep Purif Technol 2018. [DOI: 10.1016/j.seppur.2018.06.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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13
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Aydoğan C, Gökaltun A, Denizli A, El Rassi Z. Biochromatographic applications of polymethacrylate monolithic columns used in electro- and liquid phase-separationsΨ. J LIQ CHROMATOGR R T 2018. [DOI: 10.1080/10826076.2018.1462204] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Cemil Aydoğan
- Department of Food Engineering, Bingöl University, Bingöl, Turkey
| | - Aslıhan Gökaltun
- Department of Chemical Engineering, Hacettepe University, Ankara, Turkey
| | - Adil Denizli
- Department of Chemistry, Hacettepe University, Ankara, Turkey
| | - Ziad El Rassi
- Department of Chemistry, Oklahoma State University, Stillwater, OK, USA
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14
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Cardoso S, de Alcântara Pessoa Filho P, Sousa F, Rodrigues Azzoni A. Arginine and di-arginine ligands for plasmid DNA purification using negative chromatography. Sep Purif Technol 2018. [DOI: 10.1016/j.seppur.2018.03.066] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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15
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Amorim LFA, Gaspar R, Pereira P, Černigoj U, Sousa F, Queiroz JA, Sousa Â. Chromatographic HPV-16 E6/E7 plasmid vaccine purification employing L-histidine and 1-benzyl-L-histidine affinity ligands. Electrophoresis 2017; 38:2975-2980. [DOI: 10.1002/elps.201700147] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Revised: 06/09/2017] [Accepted: 06/16/2017] [Indexed: 01/01/2023]
Affiliation(s)
- Lúcia F. A. Amorim
- CICS-UBI - Centro de Investigação em Ciências da Saúde; Universidade da Beira Interior; Covilhã Portugal
| | - Rita Gaspar
- CICS-UBI - Centro de Investigação em Ciências da Saúde; Universidade da Beira Interior; Covilhã Portugal
| | - Patrícia Pereira
- CICS-UBI - Centro de Investigação em Ciências da Saúde; Universidade da Beira Interior; Covilhã Portugal
| | | | - Fani Sousa
- CICS-UBI - Centro de Investigação em Ciências da Saúde; Universidade da Beira Interior; Covilhã Portugal
| | - João António Queiroz
- CICS-UBI - Centro de Investigação em Ciências da Saúde; Universidade da Beira Interior; Covilhã Portugal
| | - Ângela Sousa
- CICS-UBI - Centro de Investigação em Ciências da Saúde; Universidade da Beira Interior; Covilhã Portugal
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16
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Diamantino T, Pereira P, Queiroz JA, Sousa Â, Sousa F. Minicircle DNA purification using a CIM® DEAE‐1 monolithic support. J Sep Sci 2016; 39:3544-9. [DOI: 10.1002/jssc.201600375] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Revised: 07/05/2016] [Accepted: 07/18/2016] [Indexed: 01/28/2023]
Affiliation(s)
- Tatiana Diamantino
- CICS‐UBI ‐ Health Sciences Research CentreUniversidade da Beira Interior Covilhã Portugal
| | - Patrícia Pereira
- CICS‐UBI ‐ Health Sciences Research CentreUniversidade da Beira Interior Covilhã Portugal
| | - João A. Queiroz
- CICS‐UBI ‐ Health Sciences Research CentreUniversidade da Beira Interior Covilhã Portugal
| | - Ângela Sousa
- CICS‐UBI ‐ Health Sciences Research CentreUniversidade da Beira Interior Covilhã Portugal
| | - Fani Sousa
- CICS‐UBI ‐ Health Sciences Research CentreUniversidade da Beira Interior Covilhã Portugal
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17
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Groarke RJ, Brabazon D. Methacrylate Polymer Monoliths for Separation Applications. MATERIALS (BASEL, SWITZERLAND) 2016; 9:E446. [PMID: 28773570 PMCID: PMC5456823 DOI: 10.3390/ma9060446] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Revised: 05/10/2016] [Accepted: 05/20/2016] [Indexed: 01/10/2023]
Abstract
This review summarizes the development of methacrylate-based polymer monoliths for separation science applications. An introduction to monoliths is presented, followed by the preparation methods and characteristics specific to methacrylate monoliths. Both traditional chemical based syntheses and emerging additive manufacturing methods are presented along with an analysis of the different types of functional groups, which have been utilized with methacrylate monoliths. The role of methacrylate based porous materials in separation science in industrially important chemical and biological separations are discussed, with particular attention given to the most recent developments and challenges associated with these materials. While these monoliths have been shown to be useful for a wide variety of applications, there is still scope for exerting better control over the porous architectures and chemistries obtained from the different fabrication routes. Conclusions regarding this previous work are drawn and an outlook towards future challenges and potential developments in this vibrant research area are presented. Discussed in particular are the potential of additive manufacturing for the preparation of monolithic structures with pre-defined multi-scale porous morphologies and for the optimization of surface reactive chemistries.
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Affiliation(s)
- Robert J Groarke
- Advanced Processing Technology Research Centre, Dublin City University, Collins Avenue, Dublin 9, Ireland.
- National Sensor Research Centre, Dublin City University, Glasnevin, Dublin 9, Ireland.
| | - Dermot Brabazon
- Advanced Processing Technology Research Centre, Dublin City University, Collins Avenue, Dublin 9, Ireland.
- National Sensor Research Centre, Dublin City University, Glasnevin, Dublin 9, Ireland.
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18
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19
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Evaluation of glycidyl methacrylate-based monolith functionalized with weak anion exchange moiety inside 0.5 mm i.d. column for liquid chromatographic separation of DNA. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.ancr.2015.11.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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20
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Bicho D, Caramelo-Nunes C, Sousa A, Sousa F, Queiroz J, Tomaz C. Purification of influenza deoxyribonucleic acid-based vaccine using agmatine monolith. J Chromatogr B Analyt Technol Biomed Life Sci 2016; 1012-1013:153-61. [DOI: 10.1016/j.jchromb.2015.12.036] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Revised: 12/14/2015] [Accepted: 12/18/2015] [Indexed: 01/04/2023]
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21
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Dye affinity cryogels for plasmid DNA purification. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 56:318-24. [DOI: 10.1016/j.msec.2015.06.041] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Revised: 12/11/2014] [Accepted: 06/22/2015] [Indexed: 11/18/2022]
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22
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Bicho D, Santos B, Caramelo-Nunes C, Sousa A, Sousa F, Queiroz J, Tomaz C. Application of ethylenediamine monolith to purify a hemagglutinin influenza deoxyribonucleic acid-based vaccine. Sep Purif Technol 2015. [DOI: 10.1016/j.seppur.2015.09.046] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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23
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Černigoj U, Martinuč U, Cardoso S, Sekirnik R, Krajnc NL, Štrancar A. Sample displacement chromatography of plasmid DNA isoforms. J Chromatogr A 2015; 1414:103-9. [DOI: 10.1016/j.chroma.2015.08.035] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2015] [Revised: 08/13/2015] [Accepted: 08/14/2015] [Indexed: 10/23/2022]
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24
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Cardoso S, Černigoj U, Lendero Krajnc N, Štrancar A. Chromatographic purification of plasmid DNA on hydrophobic methacrylate monolithic supports. Sep Purif Technol 2015. [DOI: 10.1016/j.seppur.2015.04.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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25
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26
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Xenopoulos A, Pattnaik P. Production and purification of plasmid DNA vaccines: is there scope for further innovation? Expert Rev Vaccines 2014; 13:1537-51. [DOI: 10.1586/14760584.2014.968556] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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27
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Sousa Â, Pereira P, Sousa F, Queiroz JA. Binding mechanisms for histamine and agmatine ligands in plasmid deoxyribonucleic acid purifications. J Chromatogr A 2014; 1366:110-9. [DOI: 10.1016/j.chroma.2014.09.031] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2014] [Revised: 09/01/2014] [Accepted: 09/13/2014] [Indexed: 02/02/2023]
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28
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Sousa A, Almeida A, Černigoj U, Sousa F, Queiroz J. Histamine monolith versatility to purify supercoiled plasmid deoxyribonucleic acid from Escherichia coli lysate. J Chromatogr A 2014; 1355:125-33. [DOI: 10.1016/j.chroma.2014.06.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Revised: 05/29/2014] [Accepted: 06/02/2014] [Indexed: 12/28/2022]
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29
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Development of a phenyl membrane chromatography-based process yielding pharmaceutical grade plasmid deoxyribonucleic acid for mammalian cells transfection. J Chromatogr A 2014; 1337:67-74. [DOI: 10.1016/j.chroma.2014.02.024] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Revised: 01/23/2014] [Accepted: 02/08/2014] [Indexed: 01/24/2023]
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30
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Aspartic acid incorporated monolithic columns for affinity glycoprotein purification. Colloids Surf B Biointerfaces 2014; 114:67-74. [DOI: 10.1016/j.colsurfb.2013.08.008] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2013] [Revised: 07/29/2013] [Accepted: 08/09/2013] [Indexed: 11/19/2022]
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31
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Emerging technologies for the integration and intensification of downstream bioprocesses. ACTA ACUST UNITED AC 2013. [DOI: 10.4155/pbp.13.55] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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32
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Raiado-Pereira L, Prazeres DMF, Mateus M. Impact of plasmid size on the purification of model plasmid DNA vaccines by phenyl membrane adsorbers. J Chromatogr A 2013; 1315:145-51. [DOI: 10.1016/j.chroma.2013.09.076] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Revised: 09/18/2013] [Accepted: 09/23/2013] [Indexed: 12/01/2022]
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33
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Soares A, Queiroz JA, Sousa F, Sousa A. Purification of human papillomavirus 16 E6/E7 plasmid deoxyribonucleic acid-based vaccine using an arginine modified monolithic support. J Chromatogr A 2013; 1320:72-9. [PMID: 24210303 DOI: 10.1016/j.chroma.2013.10.053] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2013] [Revised: 10/11/2013] [Accepted: 10/15/2013] [Indexed: 12/28/2022]
Abstract
The development of efficient plasmid DNA (pDNA) purification processes has fostered therapeutic applications like gene therapy and DNA vaccination. In fact, monolithic supports have emerged as interesting approaches to purify pDNA due to their excellent mass transfer properties and high binding capacity for large biomolecules. The present study describes a method that combines the high selectivity of arginine affinity ligands with the versatility of monoliths to efficiently purify the supercoiled (sc) plasmid HPV-16 E6/E7. Quality control tests indicated that the level of impurities (proteins, endotoxins, gDNA and RNA) in the final plasmid sample was in accordance with the guidelines proposed by regulatory agencies. Breakthrough experiments were designed to compare the dynamic binding capacity of pDNA in the conventional arginine-agarose matrix with the modified monolithic support. The arginine monolith capacity was substantially higher than the conventional arginine-agarose matrix at 10% of breakthrough under the flow rate and pDNA concentration used. Overall, given that the pDNA final product complies with regulatory specifications, this combined support can be the key to obtain an adequate non-viral vaccine against a HPV infection.
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Affiliation(s)
- A Soares
- CICS-UBI-Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
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34
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Maksimova E, Vlakh E, Sinitsyna E, Tennikova T. HPLC analysis of synthetic polymers on short monolithic columns. J Sep Sci 2013; 36:3741-9. [DOI: 10.1002/jssc.201300852] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2013] [Revised: 09/04/2013] [Accepted: 09/09/2013] [Indexed: 11/08/2022]
Affiliation(s)
- Elena Maksimova
- Institute of Macromolecular Compounds; Russian Academy of Sciences; St. Petersburg Russia
| | - Evgenia Vlakh
- Institute of Macromolecular Compounds; Russian Academy of Sciences; St. Petersburg Russia
- Faculty of Chemistry; Saint-Petersburg State University; St. Petersburg Russia
| | - Ekaterina Sinitsyna
- Institute of Macromolecular Compounds; Russian Academy of Sciences; St. Petersburg Russia
- Faculty of Chemistry; Saint-Petersburg State University; St. Petersburg Russia
| | - Tatiana Tennikova
- Institute of Macromolecular Compounds; Russian Academy of Sciences; St. Petersburg Russia
- Faculty of Chemistry; Saint-Petersburg State University; St. Petersburg Russia
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35
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Gabor B, Černigoj U, Barut M, Štrancar A. Reversible entrapment of plasmid deoxyribonucleic acid on different chromatographic supports. J Chromatogr A 2013; 1311:106-14. [DOI: 10.1016/j.chroma.2013.08.075] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2013] [Revised: 08/02/2013] [Accepted: 08/19/2013] [Indexed: 12/11/2022]
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36
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Podgornik A, Yamamoto S, Peterka M, Krajnc NL. Fast separation of large biomolecules using short monolithic columns. J Chromatogr B Analyt Technol Biomed Life Sci 2013; 927:80-9. [DOI: 10.1016/j.jchromb.2013.02.004] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2012] [Revised: 02/01/2013] [Accepted: 02/04/2013] [Indexed: 10/27/2022]
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37
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Černigoj U, Vidic U, Barut M, Podgornik A, Peterka M, Štrancar A. A multimodal histamine ligand for chromatographic purification of plasmid DNA. J Chromatogr A 2013; 1281:87-93. [DOI: 10.1016/j.chroma.2013.01.058] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2012] [Revised: 01/11/2013] [Accepted: 01/11/2013] [Indexed: 11/12/2022]
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38
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Smrekar V, Smrekar F, Štrancar A, Podgornik A. Single step plasmid DNA purification using methacrylate monolith bearing combination of ion-exchange and hydrophobic groups. J Chromatogr A 2013; 1276:58-64. [DOI: 10.1016/j.chroma.2012.12.029] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2012] [Revised: 12/12/2012] [Accepted: 12/16/2012] [Indexed: 01/31/2023]
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39
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Üzek R, Uzun L, Şenel S, Denizli A. Nanospines incorporation into the structure of the hydrophobic cryogels via novel cryogelation method: An alternative sorbent for plasmid DNA purification. Colloids Surf B Biointerfaces 2013; 102:243-50. [DOI: 10.1016/j.colsurfb.2012.08.020] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2012] [Revised: 08/09/2012] [Accepted: 08/14/2012] [Indexed: 10/28/2022]
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40
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Estimation of methacrylate monolith binding capacity from pressure drop data. J Chromatogr A 2013; 1272:50-5. [DOI: 10.1016/j.chroma.2012.11.057] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2012] [Revised: 11/20/2012] [Accepted: 11/22/2012] [Indexed: 11/20/2022]
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41
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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: 11] [Impact Index Per Article: 1.0] [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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42
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Current trends in separation of plasmid DNA vaccines: A review. Anal Chim Acta 2013; 760:1-15. [DOI: 10.1016/j.aca.2012.11.006] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2012] [Revised: 10/22/2012] [Accepted: 11/06/2012] [Indexed: 11/20/2022]
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43
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Romanovskaya A, Sarin LP, Bamford DH, Poranen MM. High-throughput purification of double-stranded RNA molecules using convective interaction media monolithic anion exchange columns. J Chromatogr A 2012; 1278:54-60. [PMID: 23332782 DOI: 10.1016/j.chroma.2012.12.050] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2012] [Revised: 12/20/2012] [Accepted: 12/20/2012] [Indexed: 11/15/2022]
Abstract
Recent advances in the field of RNA interference and new cost-effective approaches for large-scale double-stranded RNA (dsRNA) synthesis have fuelled the demand for robust high-performance purification techniques suitable for dsRNA molecules of various lengths. To address this issue, we developed an improved dsRNA purification method based on anion exchange chromatography utilizing convective interaction media (CIM) monolithic columns. To evaluate column performance we synthesized a selection of dsRNA molecules (58-1810 bp) in a one-step enzymatic reaction involving bacteriophage T7 DNA-dependent RNA polymerase and phi6 RNA-dependent RNA polymerase. In addition, small interfering RNAs (siRNAs) of 25-27 bp were generated by Dicer digestion of the genomic dsRNA of bacteriophage phi6. We demonstrated that linearly scalable CIM monolithic quaternary amine (QA) columns can be used as a fast and superior alternative to standard purification methods (e.g. LiCl precipitation) to obtain highly pure dsRNA preparations. The impurities following Dicer treatment were quickly and efficiently removed with the QA CIM monolithic column, yielding siRNA molecules of high purity suitable for potential therapeutic applications. Moreover, baseline separation of dsRNA molecules up to 1 kb in non-denaturing conditions was achieved.
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Affiliation(s)
- Alesia Romanovskaya
- Department of Biosciences, University of Helsinki, Biocenter 2, P.O. Box 56, 00014 University of Helsinki, Finland
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44
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Nunes JC, Morão AM, Nunes C, Pessoa de Amorim MT, Escobar IC, Queiroz JA. Plasmid DNA recovery from fermentation broths by a combined process of micro- and ultrafiltration: Modeling and application. J Memb Sci 2012. [DOI: 10.1016/j.memsci.2012.04.055] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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45
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Sousa Â, Sousa F, Queiroz JA. Advances in chromatographic supports for pharmaceutical-grade plasmid DNA purification. J Sep Sci 2012; 35:3046-58. [DOI: 10.1002/jssc.201200307] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2012] [Revised: 05/28/2012] [Accepted: 06/02/2012] [Indexed: 01/04/2023]
Affiliation(s)
- Ângela Sousa
- CICS-UBI - Centro de Investigação em Ciências da Saúde; Universidade da Beira Interior; Covilhã Portugal
| | - Fani Sousa
- CICS-UBI - Centro de Investigação em Ciências da Saúde; Universidade da Beira Interior; Covilhã Portugal
| | - João A. Queiroz
- CICS-UBI - Centro de Investigação em Ciências da Saúde; Universidade da Beira Interior; Covilhã Portugal
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Perçin I, Karakoç V, Akgöl S, Aksöz E, Denizli A. Poly(hydroxyethyl methacrylate) based magnetic nanoparticles for plasmid DNA purification from Escherichia coli lysate. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2012. [DOI: 10.1016/j.msec.2012.02.031] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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47
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Sousa A, Tomaz C, Sousa F, Queiroz J. Successful application of monolithic innovative technology using a carbonyldiimidazole disk to purify supercoiled plasmid DNA suitable for pharmaceutical applications. J Chromatogr A 2011; 1218:8333-43. [DOI: 10.1016/j.chroma.2011.09.033] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2011] [Revised: 09/12/2011] [Accepted: 09/14/2011] [Indexed: 02/03/2023]
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48
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Impact of lysine-affinity chromatography on supercoiled plasmid DNA purification. J Chromatogr B Analyt Technol Biomed Life Sci 2011; 879:3507-15. [DOI: 10.1016/j.jchromb.2011.09.032] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2011] [Revised: 09/12/2011] [Accepted: 09/16/2011] [Indexed: 12/23/2022]
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49
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Shin MJ, Tan L, Jeong MH, Kim JH, Choe WS. Monolith-based immobilized metal affinity chromatography increases production efficiency for plasmid DNA purification. J Chromatogr A 2011; 1218:5273-8. [DOI: 10.1016/j.chroma.2011.06.040] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2011] [Revised: 06/03/2011] [Accepted: 06/08/2011] [Indexed: 11/24/2022]
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50
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Poly(hydroxyethyl methacrylate) based affinity cryogel for plasmid DNA purification. Int J Biol Macromol 2011; 48:577-82. [DOI: 10.1016/j.ijbiomac.2011.01.022] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2010] [Revised: 01/25/2011] [Accepted: 01/26/2011] [Indexed: 11/19/2022]
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