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Brean A, Overton TW, Bracewell DG, Franzreb M, Thomas ORT. Integrated system for temperature-controlled fast protein liquid chromatography. IV. Continuous 'one-column' 'low-salt' hydrophobic interaction chromatography. J Chromatogr A 2024; 1731:465212. [PMID: 39068770 DOI: 10.1016/j.chroma.2024.465212] [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: 06/10/2024] [Revised: 07/23/2024] [Accepted: 07/24/2024] [Indexed: 07/30/2024]
Abstract
Systematic development of a temperature-controlled isocratic process for one-column low-salt hydrophobic interaction chromatography (HIC) of proteins employing a travelling cooling zone reactor (TCZR) system, is described. Batch binding and confocal scanning microscopy were employed to define process conditions for temperature-reversible binding of bovine serum albumin (BSA) which were validated in pulse-response temperature switching HIC experiments, before transferring to TCZR-HIC. A thin-walled stainless-steel column mounted with a movable assembly of copper blocks and Peltier elements (travelling cooling zone, TCZ) was used for TCZR-HIC. In pulse-response TCZR-HIC, 12 TCZ movements along the column desorbed 86.3% of the applied BSA monomers in 95.3% purity depleted >6-fold in 2-4 mers and nearly 260-fold in higher molecular weight (HMW) species. For continuous TCZR-HIC, the TCZ was moved 49-58 times during uninterrupted loading of BSA feeds at 0.25, 0.5 or 1 mg·mL-1. Each TCZ movement generated a sharp symmetrical elution peak. In the best case, (condition 1: 0.25 mg·mL-1 BSA; >17 mg BSA applied per mL of bed) the height of TCZ elution peaks approached pseudo-steady midway through the loading phase with no rise in baseline UV280 signal between peaks. Peak composition remained constant averaging 94.4% monomer, 5.6% 2-4 mers and <0.05% HMW. Monomers were recovered in quantitative yield depleted >3.1 fold in 2-4 mers and 92-fold in HMW species cf. the feed (63.6% monomers, 21.8% 2-4 mers, 14.6% HMW). However, increasing the BSA concentration to 1 mg·mL-1 (condition 2) or employing a fouled HIC column with 0.5 mg·mL-1 BSA (condition 3) compromised monomer purification performance.
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Affiliation(s)
- Alexander Brean
- School of Chemical Engineering, College of Engineering and Physica1, University of Birmingham, Edgbaston, Birmingham B15 2TT, England, UK
| | - Tim W Overton
- School of Chemical Engineering, College of Engineering and Physica1, University of Birmingham, Edgbaston, Birmingham B15 2TT, England, UK; Institute for Microbiology and Infection, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
| | - Daniel G Bracewell
- Department of Biochemical Engineering, University College London, London WC1E 6BT, UK
| | - Matthias Franzreb
- Institute of Functional Interfaces, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Owen R T Thomas
- School of Chemical Engineering, College of Engineering and Physica1, University of Birmingham, Edgbaston, Birmingham B15 2TT, England, UK.
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2
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An Experimental and Modeling Combined Approach in Preparative Hydrophobic Interaction Chromatography. Processes (Basel) 2022. [DOI: 10.3390/pr10051027] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Chromatography is a technique widely used in the purification of biopharmaceuticals, and generally consists of several chromatographic steps. In this work, Hydrophobic Interaction Chromatography (HIC) is investigated as a polishing step for the purification of therapeutic proteins. Adsorption mechanisms in hydrophobic interaction chromatography are still not completely clear and a limited amount of published data is available. In addition to new data on adsorption isotherms for some proteins (obtained both by high-throughput and frontal analysis method), and a comparison of different models proposed in the literature, two different approaches are compared in this work to investigate HIC. The predictive approach exploits an in-house code that simulates the behavior of the component in the column using the model parameters found from the fitting of experimental data. The estimation approach, on the other hand, exploits commercial software in which the model parameters are found by the fitting of a few experimental chromatograms. The two approaches are validated on some bind-elute runs: the predictive approach is very informative, but the experimental effort needed is high; the estimation approach is more effective, but the knowledge gained is lower. The second approach is also applied to an in-development industrial purification process and successfully resulted in predicting the behavior of the system, allowing for optimization with a reduction in the time and amount of sample needed.
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Fu X, Williams A, Bakhshayeshi M, Pieracci J. Leveraging high-throughput purification to accelerate viral vector process development. J Chromatogr A 2021; 1663:462744. [PMID: 34971861 DOI: 10.1016/j.chroma.2021.462744] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 12/08/2021] [Accepted: 12/09/2021] [Indexed: 11/26/2022]
Abstract
Recombinant adeno-associated virus (AAV) has been broadly used as a delivery tool for gene therapy applications. The development of a robust purification process is essential for delivering high purity and quality AAV products to clinic. The short clinical timelines and material limitations of early-stage development pose unique challenges to developing robust and scalable downstream purification processes. One approach to overcome these limitations is to leverage high throughput (HTP) strategies and automation technologies for purification process development, an approach that is well established in protein biologics and other areas. However, due to the unique challenges related to viral vector purification, implementing HTP approaches for gene therapy process development has not been explored extensively. In this paper, we established a HTP chromatography platform and demonstrated its capability to facilitate gene therapy purification process development using both mini-columns and self-packed resin plates. The end-to-end development workflow for AAV HTP purification is detailed in this work with the expectation of serving as an introductory for the AAV purification development field. Comparable process performance was confirmed between a bench-scale chromatography process and an HTP chromatography format. Slightly lower recovery was observed using the HTP format (62% vs 75%), as well as %full capsid enrichment (71% vs. 82%). Comparable impurity clearance capability was demonstrated between the two different systems as well. It was concluded that the established HTP chromatography formats can serve as a surrogate to bench-scale chromatography development to reduce material needs and development timelines for AAV purification development.
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Affiliation(s)
- Xiaotong Fu
- Gene Therapy Process Development, Biogen, 225 Binney St, Cambridge, MA 02142, United States.
| | - Asher Williams
- Gene Therapy Process Development, Biogen, 225 Binney St, Cambridge, MA 02142, United States
| | - Meisam Bakhshayeshi
- Gene Therapy Process Development, Biogen, 225 Binney St, Cambridge, MA 02142, United States
| | - John Pieracci
- Gene Therapy Process Development, Biogen, 225 Binney St, Cambridge, MA 02142, United States
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4
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Kinetically selective preparative chromatography of biologically active substances on polymeric sorbents. Russ Chem Bull 2020. [DOI: 10.1007/s11172-020-2845-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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5
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Kumar V, Lenhoff AM. Mechanistic Modeling of Preparative Column Chromatography for Biotherapeutics. Annu Rev Chem Biomol Eng 2020; 11:235-255. [DOI: 10.1146/annurev-chembioeng-102419-125430] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Chromatography has long been, and remains, the workhorse of downstream processing in the production of biopharmaceuticals. As bioprocessing has matured, there has been a growing trend toward seeking a detailed fundamental understanding of the relevant unit operations, which for some operations include the use of mechanistic modeling in a way similar to its use in the conventional chemical process industries. Mechanistic models of chromatography have been developed for almost a century, but although the essential features are generally understood, the specialization of such models to biopharmaceutical processing includes several areas that require further elucidation. This review outlines the overall approaches used in such modeling and emphasizes current needs, specifically in the context of typical uses of such models; these include selection and improvement of isotherm models and methods to estimate isotherm and transport parameters independently. Further insights are likely to be aided by molecular-level modeling, as well as by the copious amounts of empirical data available for existing processes.
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Affiliation(s)
- Vijesh Kumar
- Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, Delaware 19716, USA
| | - Abraham M. Lenhoff
- Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, Delaware 19716, USA
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6
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Modeling of hydrophobic interaction chromatography for the separation of antibody-drug conjugates and its application towards quality by design. J Biotechnol 2020; 317:48-58. [DOI: 10.1016/j.jbiotec.2020.04.018] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 04/22/2020] [Accepted: 04/26/2020] [Indexed: 11/21/2022]
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7
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Agrawal R, Belemkar S, Bonde C. A Stepwise Strategy Employing Automated Screening for Reversed-Phase Chromatographic Separation of Itraconazole and Its Impurities. Chromatographia 2019. [DOI: 10.1007/s10337-019-03802-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Shekhawat LK, Rathore AS. An overview of mechanistic modeling of liquid chromatography. Prep Biochem Biotechnol 2019; 49:623-638. [DOI: 10.1080/10826068.2019.1615504] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Lalita K. Shekhawat
- Department of Chemical Engineering, Indian Institute of Technology, New Delhi, India
| | - Anurag S. Rathore
- Department of Chemical Engineering, Indian Institute of Technology, New Delhi, India
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Shekhawat LK, Rathore AS. Mechanistic modeling based process analytical technology implementation for pooling in hydrophobic interaction chromatography. Biotechnol Prog 2018; 35:e2758. [PMID: 30485717 DOI: 10.1002/btpr.2758] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 09/26/2018] [Accepted: 11/26/2018] [Indexed: 12/26/2022]
Abstract
A major challenge in chromatography purification of therapeutic proteins is batch-to-batch variability with respect to impurity levels and product concentration in the feed. Mechanistic model can enable process analytical technology (PAT) implementation by predicting impact of such variations and thereby improving the robustness of the resulting process and controls. This article presents one such application of mechanistic model of hydrophobic interaction chromatography (HIC) as a PAT tool for making robust pooling decisions to enable clearance of aggregates for a monoclonal antibody (mAb) therapeutic. Model predictions were performed before the actual chromatography experiments to facilitate feedforward control. The approach has been successfully demonstrated for four different feeds with varying aggregate levels (3.84%-5.54%) and feed concentration (0.6 mg/mL-1 mg/mL). The resulting pool consistently yielded a product with 1.32 ± 0.03% aggregate vs. a target of 1.5%. A comparison of the traditional approach involving column fractionation with the proposed approach indicates that the proposed approach results in achievement of satisfactory product purity (98.68 ± 0.03% for mechanistic model based PAT controlled pooling vs. 98.64 ± 0.16% for offline column fractionation based pooling). © 2018 American Institute of Chemical Engineers Biotechnol. Prog., 35: e2758, 2019.
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Affiliation(s)
| | - Anurag S Rathore
- Dept. of Chemical Engineering, Indian Inst. of Technology, Hauz Khas, New Delhi, India
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Development and modeling of two-dimensional fast protein liquid chromatography for producing nonstructural protein-free food-and-mouth diseases virus vaccine. J Chromatogr B Analyt Technol Biomed Life Sci 2018; 1096:113-121. [PMID: 30170289 DOI: 10.1016/j.jchromb.2018.08.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2018] [Revised: 07/07/2018] [Accepted: 08/19/2018] [Indexed: 12/17/2022]
Abstract
Concerns for the use of non-purified or incompletely purified inactivated foot-and-mouth disease (FMD) vaccine, like difficulties for differentiation vaccinated from infected animals, can be a motivation in order to develop methods based on size exclusion chromatography (SEC). In this study, a two dimensional size exclusion chromatography (2D-SEC) system was successfully constructed using two different SEC column media to achieve a high-throughput purification system for the cell culture-derived foot and mouth diseases virus (FMDV). A mathematical model was also utilized to predict and to get a better insight into the separation process. Column and the packing particles characteristics such as column void volume, total column volume, particle porosity and accessible particle porosity was acquired experimentally. Retention times and elution profile of two different molecules, blue dextran and bovine serum albumin, were used for evaluating the capability of SEC media for separating two critical impurities (residual DNA (rDNA) and non-structural protein (NSP)) from active ingredient of vaccine (FMDV particle). Experiments were carried out with two different commercial columns (XK 26/60) and (XK 16/100) and with four different packing media superdex 200 prep grade, sephacryl S-500 HR, Sephacryl S-400 HR and Sephacryl S-300HR. The mathematical model was first validated by experimental chromatographic data of different SEC media and was then used to propose the best 2D-SEC system for downstream processing of the FMDV vaccine. The loading capacity of the constructed 2D-SEC sample was increased to 12.5% of total column volume and the purity of the final product was more than 90%. The entire purification process was performed with 77% FMDV recovery and 79.1% virus yield. Based on the high-performance size exclusion chromatography (HPSEC), the purity of the final NSP-free FMDV was about 90% and over 94.6% of host cell DNA was removed. Analyses of the purified FMDV by HPSEC, transmission electron microscopy (TEM) and dynamic light scattering (DLS) indicated that the final product had spherical shape with mean size about 30 nm and their structure remained intact.
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11
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Baek Y, Singh N, Arunkumar A, Borys M, Li ZJ, Zydney AL. Ultrafiltration behavior of monoclonal antibodies and Fc-fusion proteins: Effects of physical properties. Biotechnol Bioeng 2017; 114:2057-2065. [DOI: 10.1002/bit.26326] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Revised: 04/19/2017] [Accepted: 04/24/2017] [Indexed: 01/01/2023]
Affiliation(s)
- Youngbin Baek
- Department of Chemical Engineering; Pennsylvania State University; University Park Pennsylvania 16802
| | - Nripen Singh
- Bristol-Myers Squibb; Global Manufacturing and Supply; Devens Massachusetts
| | - Abhiram Arunkumar
- Bristol-Myers Squibb; Global Manufacturing and Supply; Devens Massachusetts
| | - Michael Borys
- Bristol-Myers Squibb; Global Manufacturing and Supply; Devens Massachusetts
| | - Zheng J. Li
- Bristol-Myers Squibb; Global Manufacturing and Supply; Devens Massachusetts
| | - Andrew L. Zydney
- Department of Chemical Engineering; Pennsylvania State University; University Park Pennsylvania 16802
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12
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Liu Z, Wickramasinghe SR, Qian X. Ion-specificity in protein binding and recovery for the responsive hydrophobic poly(vinylcaprolactam) ligand. RSC Adv 2017. [DOI: 10.1039/c7ra06022j] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
The conformational switch between the hydrophobic state and hydrophilic state of thermo-responsive poly(vinylcaprolactam) (PVCL) has great potential for protein purification as a hydrophobic interaction chromatography ligand.
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Affiliation(s)
- Zizhao Liu
- Department of Chemical Engineering
- University of Arkansas
- Fayetteville
- USA
| | | | - Xianghong Qian
- Department of Biomedical Engineering
- University of Arkansas
- Fayetteville
- USA
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13
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A model based approach for identifying robust operating conditions for industrial chromatography with process variability. Chem Eng Sci 2014. [DOI: 10.1016/j.ces.2014.03.010] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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14
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15
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Hanke AT, Ottens M. Purifying biopharmaceuticals: knowledge-based chromatographic process development. Trends Biotechnol 2014; 32:210-20. [DOI: 10.1016/j.tibtech.2014.02.001] [Citation(s) in RCA: 123] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2013] [Revised: 01/24/2014] [Accepted: 02/04/2014] [Indexed: 01/04/2023]
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16
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Buyel JF, Fischer R. Generic chromatography-based purification strategies accelerate the development of downstream processes for biopharmaceutical proteins produced in plants. Biotechnol J 2014; 9:566-77. [PMID: 24478119 DOI: 10.1002/biot.201300548] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2013] [Revised: 01/17/2014] [Accepted: 01/27/2014] [Indexed: 01/08/2023]
Abstract
Plants offer a valuable alternative to cultured mammalian cells for the production of recombinant biopharmaceutical proteins. However, the target protein typically represents only a minor fraction of the total protein in the initial plant extract, which means that the development of product-specific chromatography-based purification strategies is often laborious and expensive. To address this challenge, we designed a generic downstream process that is suitable for the purification of recombinant proteins with diverse properties from plant production platforms. This was achieved by focusing on the binding behavior of tobacco host cell proteins (HCPs) to a broad set of chromatography resins under different pH and conductivity conditions. Strong cation exchanger and salt-tolerant anion exchanger resins exhibited the best resolution of tobacco HCPs among the 13 tested resins, and their selectivity was easy to manipulate through the adjustment of pH and conductivity. The advantages, such as direct capture of a target protein from leaf extract, and limitations, such as low binding capacity, of various chromatography ligands and resins are discussed. We also address the most useful applications of the chromatography ligands, namely recovery of proteins with a certain pI, in a downstream process that aims to purify diverse plant-derived biopharmaceutical proteins. Based on these results, we describe generic purification schemes that are suitable for acidic, neutral, and basic target proteins, as a first step toward the development of industrial platform processes.
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Affiliation(s)
- Johannes F Buyel
- Institute for Molecular Biotechnology, RWTH Aachen University, Aachen, Germany.
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17
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de Santana SC, da Silva Filho RC, dos Santos Cavalcanti J, de Oliveira JA, de Macedo GR, Padilha FF, dos Santos ES. Modeling and simulation of breakthrough curves during purification of two chitosanases from Metarhizium anisopliae using ion-exchange with expanded bed adsorption chromatography. KOREAN J CHEM ENG 2014. [DOI: 10.1007/s11814-013-0269-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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18
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Buyel JF, Woo JA, Cramer SM, Fischer R. The use of quantitative structure-activity relationship models to develop optimized processes for the removal of tobacco host cell proteins during biopharmaceutical production. J Chromatogr A 2013; 1322:18-28. [PMID: 24268820 DOI: 10.1016/j.chroma.2013.10.076] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2013] [Revised: 10/23/2013] [Accepted: 10/24/2013] [Indexed: 01/06/2023]
Abstract
The production of recombinant pharmaceutical proteins in plants benefits from the low cost of upstream production and the greater scalability of plants compared to fermenter-based systems. Now that manufacturing processes that comply with current good manufacturing practices have been developed, plants can compete with established platforms on equal terms. However, the costs of downstream processing remain high, in part because of the dedicated process steps required to remove plant-specific process-related impurities. We therefore investigated whether the ideal strategy for the chromatographic removal of tobacco host cell proteins can be predicted by quantitative structure-activity relationship (QSAR) modeling to reduce the process development time and overall costs. We identified more than 100 tobacco proteins by mass spectrometry and their structures were reconstructed from X-ray crystallography, nuclear magnetic resonance spectroscopy and/or homology modeling data. The resulting three-dimensional models were used to calculate protein descriptors, and significant descriptors were selected based on recently-published retention data for model proteins to develop QSAR models for protein retention on anion, cation and mixed-mode resins. The predicted protein retention profiles were compared with experimental results using crude tobacco protein extracts. Because of the generic nature of the method, it can easily be transferred to other expression systems such as mammalian cells. The quality of the models and potential improvements are discussed.
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Affiliation(s)
- J F Buyel
- Institute for Molecular Biotechnology, RWTH Aachen University, Worringer Weg 1, 52074 Aachen, Germany.
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19
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Yan X, Wang Q. Comparative analysis of chromatography dynamic models in predicting the plate height contributed by interphase mass transfer. Chem Eng Sci 2013. [DOI: 10.1016/j.ces.2013.10.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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20
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Ibarra-Herrera CC, Reddy-Vennapusa R, Rito-Palomares M, Fernández-Lahore M. Proteome wide evaluation of the separation ability of hydrophobic interaction chromatography by fluorescent dye binding analysis. J Mol Recognit 2013; 26:618-26. [DOI: 10.1002/jmr.2302] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2013] [Revised: 07/25/2013] [Accepted: 07/30/2013] [Indexed: 11/11/2022]
Affiliation(s)
- Celeste C. Ibarra-Herrera
- Downstream Bioprocessing Laboratory, School of Engineering and Science; Jacobs University; Campus Ring 1 Bremen D-28759 Germany
- Centro de Biotecnología-FEMSA, Departamento de Biotecnología e Ingeniería de Alimentos; Tecnológico de Monterrey; Ave. Eugenio Garza Sada 2501 Sur Monterrey 64849 Mexico
| | - Rami Reddy-Vennapusa
- Manufacturing Technologies Department; Shantha Biotechnics (A Sanofi Company); Fateh Maidan Road Hyderabad 50140 India
| | - Marco Rito-Palomares
- Centro de Biotecnología-FEMSA, Departamento de Biotecnología e Ingeniería de Alimentos; Tecnológico de Monterrey; Ave. Eugenio Garza Sada 2501 Sur Monterrey 64849 Mexico
| | - Marcelo Fernández-Lahore
- Downstream Bioprocessing Laboratory, School of Engineering and Science; Jacobs University; Campus Ring 1 Bremen D-28759 Germany
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Ghose S, Tao Y, Conley L, Cecchini D. Purification of monoclonal antibodies by hydrophobic interaction chromatography under no-salt conditions. MAbs 2013; 5:795-800. [PMID: 23884181 PMCID: PMC3851231 DOI: 10.4161/mabs.25552] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Hydrophobic interaction chromatography (HIC) is commonly used as a polishing step in monoclonal antibody purification processes. HIC offers an orthogonal selectivity to ion exchange chromatography and can be an effective step for aggregate clearance and host cell protein reduction. HIC, however, suffers from the limitation of use of high concentrations of kosmotropic salts to achieve the desired separation. These salts often pose a disposal concern in manufacturing facilities and at times can cause precipitation of the product. Here, we report an unconventional way of operating HIC in the flowthrough (FT) mode with no kosmotropic salt in the mobile phase. A very hydrophobic resin is selected as the stationary phase and the pH of the mobile phase is modulated to achieve the required selectivity. Under the pH conditions tested (pH 6.0 and below), antibodies typically become positively charged, which has an effect on its polarity and overall surface hydrophobicity. Optimum pH conditions were chosen under which the antibody product of interest flowed through while impurities such as aggregates and host cell proteins bound to the column. This strategy was tested with a panel of antibodies with varying pI and surface hydrophobicity. Performance was comparable to that observed using conventional HIC conditions with high salt.
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Affiliation(s)
- Sanchayita Ghose
- Department of Process Biochemistry, Biogen Idec; Research Triangle Park, NC USA
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Sanaie N, Cecchini D, Pieracci J. Applying high-throughput methods to develop a purification process for a highly glycosylated protein. Biotechnol J 2012; 7:1242-55. [DOI: 10.1002/biot.201200170] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2012] [Revised: 07/11/2012] [Accepted: 08/13/2012] [Indexed: 11/06/2022]
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Marchetti N, Pasti L, Dondi F, Cavazzini A. Recent Developments and Applications in Nonlinear Reversed Phase Liquid Chromatography. ADVANCES IN CHROMATOGRAPHY 2012; 50:415-40. [PMID: 26437517 DOI: 10.1201/b11636-10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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24
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Lienqueo ME, Mahn A, Salgado JC, Shene C. Mathematical Modeling of Protein Chromatograms. Chem Eng Technol 2011. [DOI: 10.1002/ceat.201100282] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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25
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26
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Murphy PJM, Stone OJ, Anderson ME. Automated hydrophobic interaction chromatography column selection for use in protein purification. J Vis Exp 2011:3060. [PMID: 21968976 DOI: 10.3791/3060] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
In contrast to other chromatographic methods for purifying proteins (e.g. gel filtration, affinity, and ion exchange), hydrophobic interaction chromatography (HIC) commonly requires experimental determination (referred to as screening or "scouting") in order to select the most suitable chromatographic medium for purifying a given protein (1). The method presented here describes an automated approach to scouting for an optimal HIC media to be used in protein purification. HIC separates proteins and other biomolecules from a crude lysate based on differences in hydrophobicity. Similar to affinity chromatography (AC) and ion exchange chromatography (IEX), HIC is capable of concentrating the protein of interest as it progresses through the chromatographic process. Proteins best suited for purification by HIC include those with hydrophobic surface regions and able to withstand exposure to salt concentrations in excess of 2 M ammonium sulfate ((NH(4;))(2;)SO(4;)). HIC is often chosen as a purification method for proteins lacking an affinity tag, and thus unsuitable for AC, and when IEX fails to provide adequate purification. Hydrophobic moieties on the protein surface temporarily bind to a nonpolar ligand coupled to an inert, immobile matrix. The interaction between protein and ligand are highly dependent on the salt concentration of the buffer flowing through the chromatography column, with high ionic concentrations strengthening the protein-ligand interaction and making the protein immobile (i.e. bound inside the column) (2). As salt concentrations decrease, the protein-ligand interaction dissipates, the protein again becomes mobile and elutes from the column. Several HIC media are commercially available in pre-packed columns, each containing one of several hydrophobic ligands (e.g. S-butyl, butyl, octyl, and phenyl) cross-linked at varying densities to agarose beads of a specific diameter (3). Automated column scouting allows for an efficient approach for determining which HIC media should be employed for future, more exhaustive optimization experiments and protein purification runs (4). The specific protein being purified here is recombinant green fluorescent protein (GFP); however, the approach may be adapted for purifying other proteins with one or more hydrophobic surface regions. GFP serves as a useful model protein, due to its stability, unique light absorbance peak at 397 nm, and fluorescence when exposed to UV light (5). Bacterial lysate containing wild type GFP was prepared in a high-salt buffer, loaded into a Bio-Rad DuoFlow medium pressure liquid chromatography system, and adsorbed to HiTrap HIC columns containing different HIC media. The protein was eluted from the columns and analyzed by in-line and post-run detection methods. Buffer blending, dynamic sample loop injection, sequential column selection, multi-wavelength analysis, and split fraction eluate collection increased the functionality of the system and reproducibility of the experimental approach.
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Affiliation(s)
- Patrick J M Murphy
- College of Nursing, Interdisciplinary Life Sciences Research Laboratory, Seattle University, WA, USA
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Debrus B, Lebrun P, Kindenge JM, Lecomte F, Ceccato A, Caliaro G, Mbay JMT, Boulanger B, Marini R, Rozet E, Hubert P. Innovative high-performance liquid chromatography method development for the screening of 19 antimalarial drugs based on a generic approach, using design of experiments, independent component analysis and design space. J Chromatogr A 2011; 1218:5205-15. [DOI: 10.1016/j.chroma.2011.05.102] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2011] [Revised: 05/30/2011] [Accepted: 05/30/2011] [Indexed: 11/15/2022]
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