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Suk Lee Y, Lee J, Fang K, Gee GV, Rogers B, McNally D, Yoon S. Separation of full, empty, and partial adeno-associated virus capsids via anion-exchange chromatography with continuous recycling and accumulation. J Chromatogr B Analyt Technol Biomed Life Sci 2024; 1242:124206. [PMID: 38908134 DOI: 10.1016/j.jchromb.2024.124206] [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: 04/04/2024] [Revised: 05/28/2024] [Accepted: 06/11/2024] [Indexed: 06/24/2024]
Abstract
The field of recombinant adeno-associated virus (rAAV) gene therapy has attracted increasing attention over decades. Within the ongoing challenges of rAAV manufacturing, the co-production of impurities, such as empty and partial capsids containing no or truncated transgenes, poses a significant challenge. Due to their potential impact on drug efficacy and clinical safety, it is imperative to conduct comprehensive monitoring and characterization of these impurities prior to the release of the final gene therapy product. Nevertheless, existing analytical techniques encounter notable limitations, encompassing low throughput, long turnaround times, high sample consumption, and/or complicated data analysis. Chromatography-based analytical methods are recognized for their current Good Manufacturing Practice (cGMP) alignment, high repeatability, reproducibility, low limit of detection, and rapid turnaround times. Despite these advantages, current anion exchange high pressure liquid chromatography (AEX-HPLC) methods struggle with baseline separation of partial capsids from full and empty capsids, resulting in inaccurate full-to-empty capsid ratio, as partial capsids are obscured within peaks corresponding to empty and full capsids. In this study, we present a unique analytical AEX method designed to characterize not only empty and full capsids but also partial capsids. This method utilizes continuous N-Rich chromatography with recycling between two identical AEX columns for the accumulation and isolation of partial capsids. The development process is comprehensively discussed, covering the preparation of reference materials representing full (rAAV-LacZ), partial (rAAV-GFP), and empty (rAAV-empty) capsids, N-rich method development, fraction analysis, determination of fluorescence response factors between capsid variants, and validation through comparison with other comparative techniques.
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Affiliation(s)
- Yong Suk Lee
- Department of Pharmaceutical Sciences, University of Massachusetts Lowell, Lowell, MA 01854, USA
| | - Jaeweon Lee
- Department of Chemical Engineering, University of Massachusetts Lowell, Lowell, MA 01854, USA
| | - Kun Fang
- MassBiologics, University of Massachusetts Chan Medical School, Mattapan, MA 02126, USA
| | - Gretchen V Gee
- MassBiologics, University of Massachusetts Chan Medical School, Mattapan, MA 02126, USA
| | - Benjamin Rogers
- MassBiologics, University of Massachusetts Chan Medical School, Mattapan, MA 02126, USA
| | - David McNally
- Department of Chemical Engineering, University of Massachusetts Lowell, Lowell, MA 01854, USA; MassBiologics, University of Massachusetts Chan Medical School, Mattapan, MA 02126, USA
| | - Seongkyu Yoon
- Department of Chemical Engineering, University of Massachusetts Lowell, Lowell, MA 01854, USA.
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2
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Anupa A, Bansode V, Kateja N, Rathore AS. A novel method for continuous chromatographic separation of monoclonal antibody charge variants by combining displacement mode chromatography and step elution. Biotechnol Prog 2024; 40:e3395. [PMID: 37828820 DOI: 10.1002/btpr.3395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 08/28/2023] [Accepted: 09/22/2023] [Indexed: 10/14/2023]
Abstract
Charge heterogeneity of monoclonal antibodies is considered a critical quality attribute and hence needs to be monitored and controlled by the manufacturer. Typically, this is accomplished via separation of charge variants on cation exchange chromatography (CEX) using a pH or conductivity based linear gradient elution. Although an effective approach, this is challenging particularly during continuous processing as creation of linear gradient during continuous processing adds to process complexity and can lead to deviations in product quality upon slightest changes in gradient formation. Moreover, the long length of elution gradient along with the required peak fractionation makes process integration difficult. In this study, we propose a novel approach for separation of charge variants during continuous CEX chromatography by utilizing a combination of displacement mode chromatography and salt-based step elution. It has been demonstrated that while the displacement mode of chromatography enables control of acidic variants ≤26% in the CEX eluate, salt-based step gradient elution manages basic charge variant ≤25% in the CEX eluate. The proposed approach has been successfully demonstrated using feed materials with varying compositions. On comparing the designed strategy with 2-column concurrent (CC) chromatography, the resin specific productivity increased by 95% and resin utilization increased by 183% with recovery of main species >99%. Further, in order to showcase the amenability of the designed CEX method in continuous operation, the method was examined in our in-house continuous mAb platform.
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Affiliation(s)
- Anupa Anupa
- School of Interdisciplinary Research, Indian Institute of Technology Delhi, New Delhi, India
| | - Vikrant Bansode
- Department of Chemical Engineering, Indian Institute of Technology Delhi, New Delhi, India
| | - Nikhil Kateja
- Department of Chemical Engineering, Indian Institute of Technology Delhi, New Delhi, India
| | - Anurag S Rathore
- Department of Chemical Engineering, Indian Institute of Technology Delhi, New Delhi, India
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3
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Kim TK, Bham AA, Fioretti I, Angelo J, Xu X, Ghose S, Morbidelli M, Sponchioni M. Role of the gradient slope during the product internal recycling for the multicolumn countercurrent solvent gradient purification of PEGylated proteins. J Chromatogr A 2023; 1692:463868. [PMID: 36803771 DOI: 10.1016/j.chroma.2023.463868] [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: 11/11/2022] [Revised: 02/06/2023] [Accepted: 02/08/2023] [Indexed: 02/11/2023]
Abstract
Protein PEGylation, i.e. functionalization with poly(ethylene glycol) chains, has been demonstrated an efficient way to improve the therapeutic index of these biopharmaceuticals. We demonstrated that Multicolumn Countercurrent Solvent Gradient Purification (MCSGP) is an efficient process for the separation of PEGylated proteins (Kim et al., Ind. and Eng. Chem. Res. 2021, 60, 29, 10764-10776), thanks to the internal recycling of product-containing side fractions. This recycling phase plays a critical role in the economy of MCSGP as it avoids wasting valuable product, but at the same time impacts its productivity extending the overall process duration. In this study, our aim is to elucidate the role of the gradient slope within this recycling stage on the yield and productivity of MCSGP for two case-studies: PEGylated lysozyme and an industrially relevant PEGylated protein. While all the examples of MCSGP in the literature refer to a single gradient slope in the elution phase, for the first time we systematically investigate three different gradient configurations: i) a single gradient slope throughout the entire elution, ii) recycling with an increased gradient slope, to shed light on the competition between volume of the recycled fraction and required inline dilution and iii) an isocratic elution during the recycling phase. The dual gradient elution proved to be a valuable solution for boosting the recovery of high-value products, with the potential for alleviating the pressure on the upstream processing.
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Affiliation(s)
- Tae Keun Kim
- Department of Chemistry, Materials and Chemical Engineering, Politecnico di Milano, Via Mancinelli 7 20131 Milano, Italy
| | - Abdallah Ayub Bham
- Department of Chemistry, Materials and Chemical Engineering, Politecnico di Milano, Via Mancinelli 7 20131 Milano, Italy
| | - Ismaele Fioretti
- Department of Chemistry, Materials and Chemical Engineering, Politecnico di Milano, Via Mancinelli 7 20131 Milano, Italy
| | - James Angelo
- Biologics Process Development, Global Product Development and Supply, Bristol Myers Squibb, Inc., Devens, MA, 01434, USA
| | - Xuankuo Xu
- Biologics Process Development, Global Product Development and Supply, Bristol Myers Squibb, Inc., Devens, MA, 01434, USA
| | - Sanchayita Ghose
- Biologics Process Development, Global Product Development and Supply, Bristol Myers Squibb, Inc., Devens, MA, 01434, USA
| | - Massimo Morbidelli
- Department of Chemistry, Materials and Chemical Engineering, Politecnico di Milano, Via Mancinelli 7 20131 Milano, Italy
| | - Mattia Sponchioni
- Department of Chemistry, Materials and Chemical Engineering, Politecnico di Milano, Via Mancinelli 7 20131 Milano, Italy.
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4
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Yuan G, Zhang X, Zhang Y, Dong W, Li Y. Obtaining acidic and basic charge variants using a twin-column continuous chromatography system. Protein Expr Purif 2023; 203:106217. [PMID: 36529448 DOI: 10.1016/j.pep.2022.106217] [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: 11/14/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022]
Abstract
For recombinantly produced monoclonal antibody (mAb), charge variants including acidic and basic species are common heterogeneities. For characterization purpose, sufficient amount of acidic and basic species with high purity is needed. In this work, we developed an approach that allows for continuous separating and collecting of acidic and basic charge variants. First, with batch-mode cation exchange (CEX) chromatography, the load density and linear salt gradient elution conditions under which good separation of both charge variants can be achieved were determined. Next, a stepwise elution protocol was developed based on the linear gradient elution. Finally, acidic and basic charge variants were persistently produced under stepwise elution using a customized twin-column continuous chromatography system. This approach allows acidic and basic charge variants with high purity (i.e., >90%) to be efficiently generated in sufficient amount, which greatly facilitates the necessary characterization of these mAb variants.
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Affiliation(s)
- Gaoya Yuan
- Technology and Process Development (TPD), WuXi Biologics, 288 Fute Zhong Road, Waigaoqiao Free Trade Zone, Shanghai, 200131, China
| | - Xudong Zhang
- Technology and Process Development (TPD), WuXi Biologics, 288 Fute Zhong Road, Waigaoqiao Free Trade Zone, Shanghai, 200131, China
| | - Yuanyi Zhang
- Technology and Process Development (TPD), WuXi Biologics, 288 Fute Zhong Road, Waigaoqiao Free Trade Zone, Shanghai, 200131, China
| | - Wanyuan Dong
- Technology and Process Development (TPD), WuXi Biologics, 288 Fute Zhong Road, Waigaoqiao Free Trade Zone, Shanghai, 200131, China
| | - Yifeng Li
- Technology and Process Development (TPD), WuXi Biologics, 288 Fute Zhong Road, Waigaoqiao Free Trade Zone, Shanghai, 200131, China.
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Lievore G, Weldon R, Catani M, Cavazzini A, Müller-Späth T. Enrichment and recovery of oligonucleotide impurities by N-Rich twin-column continuous chromatography. J Chromatogr B Analyt Technol Biomed Life Sci 2022; 1209:123439. [DOI: 10.1016/j.jchromb.2022.123439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 08/24/2022] [Accepted: 08/25/2022] [Indexed: 10/15/2022]
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Fioretti I, Müller-Späth T, Weldon R, Vogg S, Morbidelli M, Sponchioni M. Continuous countercurrent chromatographic twin-column purification of oligonucleotides: the role of the displacement effect. Biotechnol Bioeng 2022; 119:1861-1872. [PMID: 35338661 PMCID: PMC9322279 DOI: 10.1002/bit.28093] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 03/17/2022] [Accepted: 03/20/2022] [Indexed: 11/10/2022]
Abstract
Oligonucleotides (ONs) are breaking through in the biopharmaceutical industry as a promising class of biotherapeutics. The main success of these molecules is due to their peculiar way of acting in the cellular process, regulating the gene expression and hence influencing the protein synthesis at a pre-translational level. Although the Food and Drug Administration (FDA) already approved a few ON-based therapeutics, their production cost strongly limits large scale manufacturing: a situation that can be alleviated through process intensification. In this work, we address this problem by developing an efficient and continuous chromatographic purification process for ONs. In particular, we considered the chromatographic purification of a ON crude prepared by chemical synthesis using anion exchange resins. We demonstrate that in this system the competitive adsorption of the various species on the same sites of the resin leads to the displacement of the more weakly adsorbing species by the more strongly adsorbing ones. This phenomenon affects the behavior of the chromatographic units and it has been investigated in detail. Then, we developed a continuous countercurrent solvent gradient purification (MCSGP) process, which can significantly improve the productivity and buffer consumption compared to a classical single-column, batch chromatographic process. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Ismaele Fioretti
- Department of Chemistry, Materials and Chemical Engineering, Politecnico di Milano, Via Mancinelli 7, Milano, 20131, Italy
| | | | - Richard Weldon
- YMC ChromaCon, Technoparkstrasse 1, 8005, Zürich, Switzerland
| | - Sebastian Vogg
- YMC ChromaCon, Technoparkstrasse 1, 8005, Zürich, Switzerland
| | - Massimo Morbidelli
- Department of Chemistry, Materials and Chemical Engineering, Politecnico di Milano, Via Mancinelli 7, Milano, 20131, Italy
| | - Mattia Sponchioni
- Department of Chemistry, Materials and Chemical Engineering, Politecnico di Milano, Via Mancinelli 7, Milano, 20131, Italy
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Weldon R, Müller-Späth T. Enrichment and purification of peptide impurities using twin-column continuous chromatography. J Chromatogr A 2022; 1667:462894. [DOI: 10.1016/j.chroma.2022.462894] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 02/08/2022] [Accepted: 02/09/2022] [Indexed: 11/28/2022]
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De Luca C, Lievore G, Bozza D, Buratti A, Cavazzini A, Ricci A, Macis M, Cabri W, Felletti S, Catani M. Downstream Processing of Therapeutic Peptides by Means of Preparative Liquid Chromatography. Molecules 2021; 26:4688. [PMID: 34361839 PMCID: PMC8348516 DOI: 10.3390/molecules26154688] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 07/14/2021] [Accepted: 07/28/2021] [Indexed: 12/31/2022] Open
Abstract
The market of biomolecules with therapeutic scopes, including peptides, is continuously expanding. The interest towards this class of pharmaceuticals is stimulated by the broad range of bioactivities that peptides can trigger in the human body. The main production methods to obtain peptides are enzymatic hydrolysis, microbial fermentation, recombinant approach and, especially, chemical synthesis. None of these methods, however, produce exclusively the target product. Other species represent impurities that, for safety and pharmaceutical quality reasons, must be removed. The remarkable production volumes of peptide mixtures have generated a strong interest towards the purification procedures, particularly due to their relevant impact on the manufacturing costs. The purification method of choice is mainly preparative liquid chromatography, because of its flexibility, which allows one to choose case-by-case the experimental conditions that most suitably fit that particular purification problem. Different modes of chromatography that can cover almost every separation case are reviewed in this article. Additionally, an outlook to a very recent continuous chromatographic process (namely Multicolumn Countercurrent Solvent Gradient Purification, MCSGP) and future perspectives regarding purification strategies will be considered at the end of this review.
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Affiliation(s)
- Chiara De Luca
- Department of Chemistry, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy; (C.D.L.); (G.L.); (D.B.); (A.B.); (A.C.)
| | - Giulio Lievore
- Department of Chemistry, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy; (C.D.L.); (G.L.); (D.B.); (A.B.); (A.C.)
| | - Desiree Bozza
- Department of Chemistry, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy; (C.D.L.); (G.L.); (D.B.); (A.B.); (A.C.)
| | - Alessandro Buratti
- Department of Chemistry, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy; (C.D.L.); (G.L.); (D.B.); (A.B.); (A.C.)
| | - Alberto Cavazzini
- Department of Chemistry, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy; (C.D.L.); (G.L.); (D.B.); (A.B.); (A.C.)
| | - Antonio Ricci
- Fresenius Kabi iPSUM, Via San Leonardo 23, 45010 Villadose, Italy; (A.R.); (M.M.)
| | - Marco Macis
- Fresenius Kabi iPSUM, Via San Leonardo 23, 45010 Villadose, Italy; (A.R.); (M.M.)
| | - Walter Cabri
- Department of Chemistry “Giacomo Ciamician”, Alma Mater Studiorum—University of Bologna, Via Selmi 2, 40126 Bologna, Italy;
| | - Simona Felletti
- Department of Chemistry, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy; (C.D.L.); (G.L.); (D.B.); (A.B.); (A.C.)
| | - Martina Catani
- Department of Chemistry, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy; (C.D.L.); (G.L.); (D.B.); (A.B.); (A.C.)
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Kim TK, Botti C, Angelo J, Xu X, Ghose S, Li ZJ, Morbidelli M, Sponchioni M. Experimental Design of the Multicolumn Countercurrent Solvent Gradient Purification (MCSGP) Unit for the Separation of PEGylated Proteins. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c01345] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Tae Keun Kim
- Department of Chemistry, Materials and Chemical Engineering, Politecnico di Milano, Via Mancinelli 7, Milano, 20131, Italy
| | - Chiara Botti
- Department of Chemistry, Materials and Chemical Engineering, Politecnico di Milano, Via Mancinelli 7, Milano, 20131, Italy
| | - James Angelo
- Biologics Process Development, Global Product Development and Supply, Bristol Myers Squibb, Inc., Devens, Massachusetts 01434, United States
| | - Xuankuo Xu
- Biologics Process Development, Global Product Development and Supply, Bristol Myers Squibb, Inc., Devens, Massachusetts 01434, United States
| | - Sanchayita Ghose
- Biologics Process Development, Global Product Development and Supply, Bristol Myers Squibb, Inc., Devens, Massachusetts 01434, United States
| | - Zheng Jian Li
- Biologics Process Development, Global Product Development and Supply, Bristol Myers Squibb, Inc., Devens, Massachusetts 01434, United States
| | - Massimo Morbidelli
- Department of Chemistry, Materials and Chemical Engineering, Politecnico di Milano, Via Mancinelli 7, Milano, 20131, Italy
| | - Mattia Sponchioni
- Department of Chemistry, Materials and Chemical Engineering, Politecnico di Milano, Via Mancinelli 7, Milano, 20131, Italy
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