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Rogerson T, Xi G, Ampey A, Borman J, Jaroudi S, Pappas D, Linke T. Purification of a recombinant oncolytic virus from clarified cell culture media by anion exchange monolith chromatography. Electrophoresis 2023; 44:1923-1933. [PMID: 37400365 DOI: 10.1002/elps.202200270] [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: 11/09/2022] [Revised: 04/20/2023] [Accepted: 05/24/2023] [Indexed: 07/05/2023]
Abstract
The use of viral vectors for vaccine, gene therapy, and oncolytic virotherapy applications has received increased attention in recent years. Large-scale purification of viral vector-based biotherapeutics still presents a significant technical challenge. Chromatography is the primary tool for the purification of biomolecules in the biotechnology industry; however, the majority of chromatography resins currently available have been designed for the purification of proteins. In contrast, convective interaction media monoliths are chromatographic supports that have been designed and successfully utilized for the purification of large biomolecules, including viruses, viruslike particles, and plasmids. We present a case study on the development of a purification method for recombinant Newcastle disease virus directly from clarified cell culture media using strong anion exchange monolith technology (CIMmultus QA, BIA Separations). Resin screening studies showed at least 10 times higher dynamic binding capacity of CIMmultus QA compared to traditional anion exchange chromatography resins. Design of experiments was used to demonstrate a robust operating window for the purification of recombinant virus directly from clarified cell culture without any further pH or conductivity adjustment of the load material. The capture step was successfully scaled up from 1 mL CIMmultus QA columns to the 8 L column scale and achieved a greater than 30-fold reduction in process volume. Compared to the load material, total host cell proteins were reduced by more than 76%, and residual host cell DNA by more than 57% in the elution pool, respectively. Direct loading of clarified cell culture onto a high-capacity monolith stationary phase makes convective flow chromatography an attractive alternative to centrifugation or TFF-based virus purification procedures.
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Affiliation(s)
- Troy Rogerson
- Process & Analytical Sciences, BioPharmaceutical Development, BioPharmaceutical Development R&D, AstraZeneca LLC, Gaithersburg, Maryland, USA
| | - Guoling Xi
- Process & Analytical Sciences, BioPharmaceutical Development, BioPharmaceutical Development R&D, AstraZeneca LLC, Gaithersburg, Maryland, USA
| | - Amanda Ampey
- Process & Analytical Sciences, BioPharmaceutical Development, BioPharmaceutical Development R&D, AstraZeneca LLC, Gaithersburg, Maryland, USA
| | - Jon Borman
- Process & Analytical Sciences, BioPharmaceutical Development, BioPharmaceutical Development R&D, AstraZeneca LLC, Gaithersburg, Maryland, USA
| | - Sally Jaroudi
- Process & Analytical Sciences, BioPharmaceutical Development, BioPharmaceutical Development R&D, AstraZeneca LLC, Gaithersburg, Maryland, USA
| | - Dan Pappas
- Manufacturing Sciences, BioPharmaceutical Development, Biopharmaceuticals R&D, AstraZeneca LLC, Gaithersburg, Maryland, USA
| | - Thomas Linke
- Process & Analytical Sciences, BioPharmaceutical Development, BioPharmaceutical Development R&D, AstraZeneca LLC, Gaithersburg, Maryland, USA
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Fan J, Barbieri E, Shastry S, Menegatti S, Boi C, Carbonell RG. Purification of Adeno-Associated Virus (AAV) Serotype 2 from Spodoptera frugiperda (Sf9) Lysate by Chromatographic Nonwoven Membranes. MEMBRANES 2022; 12:membranes12100944. [PMID: 36295703 PMCID: PMC9606886 DOI: 10.3390/membranes12100944] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 09/24/2022] [Accepted: 09/26/2022] [Indexed: 06/02/2023]
Abstract
The success of adeno-associated virus (AAV)-based therapeutics in gene therapy poses the need for rapid and efficient processes that can support the growing clinical demand. Nonwoven membranes represent an ideal tool for the future of virus purification: owing to their small fiber diameters and high porosity, they can operate at high flowrates while allowing full access to target viral particles without diffusional limitations. This study describes the development of nonwoven ion-exchange membrane adsorbents for the purification of AAV2 from an Sf9 cell lysate. A strong anion-exchange (AEX) membrane was developed by UV grafting glycidyl methacrylate on a polybutylene terephthalate nonwoven followed by functionalization with triethylamine (TEA), resulting in a quaternary amine ligand (AEX-TEA membrane). When operated in bind-and-elute mode at a pH higher than the pI of the capsids, this membrane exhibited a high AAV2 binding capacity (9.6 × 1013 vp·mL-1) at the residence time of 1 min, and outperformed commercial cast membranes by isolating AAV2 from an Sf9 lysate with high productivity (2.4 × 1013 capsids·mL-1·min-1) and logarithmic reduction value of host cell proteins (HCP LRV ~ 1.8). An iminodiacetic acid cation-exchange nonwoven (CEX-IDA membrane) was also prepared and utilized at a pH lower than the pI of capsids to purify AAV2 in a bind-and-elute mode, affording high capsid recovery and impurity removal by eluting with a salt gradient. To further increase purity, the CEX-IDA and AEX-TEA membranes were utilized in series to purify the AAV2 from the Sf9 cell lysate. This membrane-based chromatography process also achieved excellent DNA clearance and a recovery of infectivity higher that that reported using ion-exchange resin chromatography.
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Affiliation(s)
- Jinxin Fan
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, NC 27695, USA
| | - Eduardo Barbieri
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, NC 27695, USA
| | - Shriarjun Shastry
- Golden LEAF Biomanufacturing Training and Education Center (BTEC), North Carolina State University, Raleigh, NC 27606, USA
| | - Stefano Menegatti
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, NC 27695, USA
- Golden LEAF Biomanufacturing Training and Education Center (BTEC), North Carolina State University, Raleigh, NC 27606, USA
| | - Cristiana Boi
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, NC 27695, USA
- Golden LEAF Biomanufacturing Training and Education Center (BTEC), North Carolina State University, Raleigh, NC 27606, USA
- Department of Civil, Chemical Environmental and Materials Engineering, DICAM, University of Bologna, Via Terracini 28, 40131 Bologna, Italy
| | - Ruben G. Carbonell
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, NC 27695, USA
- Golden LEAF Biomanufacturing Training and Education Center (BTEC), North Carolina State University, Raleigh, NC 27606, USA
- National Institute for Innovation in Manufacturing Biopharmaceuticals (NIIMBL), Newark, DE 19711, USA
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Černigoj U, Nemec B, Štrancar A. Sample displacement chromatography of monoclonal antibody charge variants and aggregates. Electrophoresis 2021; 43:527-534. [PMID: 34894359 DOI: 10.1002/elps.202100325] [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: 10/03/2021] [Revised: 10/28/2021] [Accepted: 12/02/2021] [Indexed: 11/06/2022]
Abstract
The rise of biosimilar monoclonal antibodies has renewed the interest in monoclonal antibody (mAb) charge variants composition and separation. The sample displacement chromatography (SDC) has the potential to overcome the low separation efficiency and productivity associated with bind-elute separation of mAb charge variants. SDC in combination with weak cation exchanging macroporous monolithic chromatographic column was successfully implemented for a separation of charge variants and aggregates of monoclonal IgG under overloading conditions. The charge variants composition was at-line monitored by a newly developed, simple and fast analytical method, based on weak cation exchange chromatography. It was proven that basic charge variants acted as displacers of IgG molecules with lower pI, when the loading was performed 1 to 1.5 pH unit below the pI of acidic charge variants. The efficiency of the SDC process is flow rate independent due to a convection-based mass transfer on the macroporous monolith. The productivity of the process at optimal conditions is 35 mg of purified IgG fraction per milliliters of monolithic support with 75-80% recovery. As such, an SDC approach surpasses the standard bind-elute separation in the productivity for a factor of 3, when performed on the same column. The applicability of the SDC approach was confirmed for porous particle-based column as well, but with 1.5 lower productivity compared to the monoliths.
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Affiliation(s)
- Urh Černigoj
- BIA Separations d.o.o, a Sartorius Company, Ajdovščina, Slovenia
| | - Blaž Nemec
- 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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Highly Efficient Purification of Recombinant VSV-∆G-Spike Vaccine against SARS-CoV-2 by Flow-Through Chromatography. BIOTECH 2021; 10:biotech10040022. [PMID: 35822796 PMCID: PMC9245476 DOI: 10.3390/biotech10040022] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 10/07/2021] [Accepted: 10/08/2021] [Indexed: 01/10/2023] Open
Abstract
This study reports a highly efficient, rapid one-step purification process for the production of the recombinant vesicular stomatitis virus-based vaccine, rVSV-∆G-spike (rVSV-S), recently developed by the Israel Institute for Biological Research (IIBR) for the prevention of COVID-19. Several purification strategies are evaluated using a variety of chromatography methods, including membrane adsorbers and packed-bed ion-exchange chromatography. Cell harvest is initially treated with endonuclease, clarified, and further concentrated by ultrafiltration before chromatography purification. The use of anion-exchange chromatography in all forms results in strong binding of the virus to the media, necessitating a high salt concentration for elution. The large virus and spike protein binds very strongly to the high surface area of the membrane adsorbents, resulting in poor virus recovery (<15%), while the use of packed-bed chromatography, where the surface area is smaller, achieves better recovery (up to 33%). Finally, a highly efficient chromatography purification process with CaptoTM Core 700 resin, which does not require binding and the elution of the virus, is described. rVSV-S cannot enter the inner pores of the resin and is collected in the flow-through eluent. Purification of the rVSV-S virus with CaptoTM Core 700 resulted in viral infectivity above 85% for this step, with the efficient removal of host cell proteins, consistent with regulatory requirements. Similar results were obtained without an initial ultrafiltration step.
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Srivastava V, Singh A, Jain GK, Ahmad FJ, Shukla R, Kesharwani P. Viral vectors as a promising nanotherapeutic approach against neurodegenerative disorders. Process Biochem 2021. [DOI: 10.1016/j.procbio.2021.07.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Turnbull J, Wright B, Green NK, Tarrant R, Roberts I, Hardick O, Bracewell DG. Adenovirus 5 recovery using nanofiber ion‐exchange adsorbents. Biotechnol Bioeng 2019; 116:1698-1709. [DOI: 10.1002/bit.26972] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2018] [Revised: 01/29/2019] [Accepted: 03/14/2019] [Indexed: 12/14/2022]
Affiliation(s)
- Jordan Turnbull
- Department of Biochemical EngineeringUniversity College LondonLondon United Kingdom
| | - Bernice Wright
- Department of Biochemical EngineeringUniversity College LondonLondon United Kingdom
| | - Nicola K. Green
- Clinical BioManufacturing FacilityUniversity of OxfordOxford United Kingdom
| | - Richard Tarrant
- Clinical BioManufacturing FacilityUniversity of OxfordOxford United Kingdom
| | - Iwan Roberts
- Puridify, Stevenage Bioscience CatalystStevenage United Kingdom
| | - Oliver Hardick
- Puridify, Stevenage Bioscience CatalystStevenage United Kingdom
| | - Daniel G. Bracewell
- Department of Biochemical EngineeringUniversity College LondonLondon United Kingdom
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Dyer A, Baugh R, Chia SL, Frost S, Iris, Jacobus EJ, Khalique H, Pokrovska TD, Scott EM, Taverner WK, Seymour LW, Lei J. Turning cold tumours hot: oncolytic virotherapy gets up close and personal with other therapeutics at the 11th Oncolytic Virus Conference. Cancer Gene Ther 2019; 26:59-73. [PMID: 30177818 DOI: 10.1038/s41417-018-0042-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Revised: 06/28/2018] [Accepted: 07/07/2018] [Indexed: 12/17/2022]
Abstract
The 11th International Oncolytic Virus Conference (IOVC) was held from April 9-12, 2018 in Oxford, UK. This is part of the high-profile academic-led series of meetings that was started back in 2002 by Steve Russell and John Bell, with most of the previous meetings being held in North America (often in Banff). The conference brought together many of the major players in oncolytic virotherapy from all over the world, addressing all stages of research and development-from aspects of basic science and cellular immunology all the way through to early- and late-phase clinical trials. The meeting welcomed 352 delegates from 24 countries. The top seven delegate countries, namely, the UK, US, Canada, The Netherlands, Germany, Japan and South Korea, contributed 291 delegates while smaller numbers coming from Australia, Austria, Bulgaria, China, Finland, France, Iraq, Ireland, Israel, Italy, Latvia, Malaysia, Poland, Slovenia, Spain, Sweden and Switzerland. Academics comprised about half of the attendees, industry 30% and students 20%. The next IOVC is scheduled to be held on Vancouver Island in autumn 2019. Here we share brief summaries of the oral presentations from invited speakers and proffered papers in the different subtopics presented at IOVC 2018.
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Affiliation(s)
- Arthur Dyer
- Department of Oncology, University of Oxford, Old Road Campus Research Building, Roosevelt Drive, Oxford, OX3 7DQ, UK
| | - Richard Baugh
- Department of Oncology, University of Oxford, Old Road Campus Research Building, Roosevelt Drive, Oxford, OX3 7DQ, UK
| | - Suet Lin Chia
- Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Sally Frost
- Department of Oncology, University of Oxford, Old Road Campus Research Building, Roosevelt Drive, Oxford, OX3 7DQ, UK
| | - Iris
- Department of Oncology, University of Oxford, Old Road Campus Research Building, Roosevelt Drive, Oxford, OX3 7DQ, UK
| | - Egon J Jacobus
- Department of Oncology, University of Oxford, Old Road Campus Research Building, Roosevelt Drive, Oxford, OX3 7DQ, UK
| | - Hena Khalique
- Department of Oncology, University of Oxford, Old Road Campus Research Building, Roosevelt Drive, Oxford, OX3 7DQ, UK
| | - Tzveta D Pokrovska
- Department of Oncology, University of Oxford, Old Road Campus Research Building, Roosevelt Drive, Oxford, OX3 7DQ, UK
| | - Eleanor M Scott
- Department of Oncology, University of Oxford, Old Road Campus Research Building, Roosevelt Drive, Oxford, OX3 7DQ, UK
| | - William K Taverner
- Department of Oncology, University of Oxford, Old Road Campus Research Building, Roosevelt Drive, Oxford, OX3 7DQ, UK
| | - Len W Seymour
- Department of Oncology, University of Oxford, Old Road Campus Research Building, Roosevelt Drive, Oxford, OX3 7DQ, UK.
| | - Janet Lei
- Department of Oncology, University of Oxford, Old Road Campus Research Building, Roosevelt Drive, Oxford, OX3 7DQ, UK.
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