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Rischawy F, Briskot T, Schimek A, Wang G, Saleh D, Kluters S, Studts J, Hubbuch J. Integrated process model for the prediction of biopharmaceutical manufacturing chromatography and adjustment steps. J Chromatogr A 2022; 1681:463421. [DOI: 10.1016/j.chroma.2022.463421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 07/27/2022] [Accepted: 08/12/2022] [Indexed: 10/15/2022]
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2
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Invertase adsorption with polymers functionalized by aspartic acid. JOURNAL OF POLYMER ENGINEERING 2022. [DOI: 10.1515/polyeng-2021-0373] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Today, the separation and purification processes are highly preferred over the affinity interactions in the scientific world. Among the materials used for this purpose, magnetic particles and cryogels are very popular. Both polymeric structures have their advantages and disadvantages. In this study, poly(2-Hydroxyethyl methacrylate-N-methacryloyl-L-aspartic acid), poly(HEMA-MAsp), magnetic microparticles, and cryogels were synthesized, and adsorption performances of both polymeric structures were investigated by using invertase from aqueous systems. Invertase (β-fructofuranoside fructohydrolase, EC 3.2.1.26) is a commercially important enzyme used in the food industry to obtain the product called invert sugar, which consists of a mixture of equivalent amounts of glucose and fructose. Therefore, it was preferred as a model enzyme in adsorption studies of polymeric structures. According to the results, 104.1 mg g−1 and 135.5 mg g−1 of adsorption capacity values were obtained for cryogel and magnetic microparticle forms, respectively. Increasing temperature slightly reduced the adsorption capacity of both polymeric structures. In the adsorption/desorption cycle studies performed five times with poly(HEMA-MAsp) polymers, both forms were found to have high reusable properties. It was determined that the activity of invertase immobilized on polymeric structures was preserved at a rate of 83.6% for the particle form and 89.2% for the cryogel form.
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Briskot T, Hillebrandt N, Kluters S, Wang G, Studts J, Hahn T, Huuk T, Hubbuch J. Modeling the Gibbs–Donnan effect during ultrafiltration and diafiltration processes using the Poisson–Boltzmann theory in combination with a basic Stern model. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120333] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Herman CE, Xu X, Traylor SJ, Ghose S, Li ZJ, Lenhoff AM. Behavior of weakly adsorbing protein impurities in flow-through ion-exchange chromatography. J Chromatogr A 2021; 1664:462788. [PMID: 34998025 DOI: 10.1016/j.chroma.2021.462788] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 12/23/2021] [Accepted: 12/23/2021] [Indexed: 10/19/2022]
Abstract
Flow-through ion-exchange chromatography is frequently used in polishing biotherapeutics, but the factors that contribute to impurity persistence are incompletely understood. A large number of dilute impurities may be encountered that exhibit physicochemical diversity, making the flow-through separation performance highly sensitive to process conditions. The analysis presented in this work develops two novel correlations that offer transferable insights into the chromatographic behavior of weakly adsorbing impurities. The first, based on column simulations and validated experimentally, delineates the relative contributions of thermodynamic, transport, and geometric properties in dictating the initial breakthrough volumes of dilute species. The Graetz number for mass transfer was found to generalize the transport contributions, enabling estimation of a threshold in the equilibrium constant below which impurity persistence is expected. Impurity adsorption equilibria are needed to use this correlation, but such data are not typically available. The second relationship presented in this work may be used to reduce the experimental burden of estimating adsorption equilibria as a function of ionic strength. A correlation between stoichiometric displacement model parameters was found by consolidating isocratic retention data for over 200 protein-pH-resin combinations from the extant literature. Coupled with Yamamoto's analysis of linear gradient elution data, this correlation may be used to estimate retentivity approximately from a single experimental measurement, which could prove useful in predicting host-cell protein chromatographic behavior.
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Affiliation(s)
- Chase E Herman
- Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, DE 19716, USA
| | - Xuankuo Xu
- Biologics Process Development, Bristol Myers Squibb, Devens, MA 01434, USA
| | - Steven J Traylor
- Biologics Process Development, Bristol Myers Squibb, Devens, MA 01434, USA
| | - Sanchayita Ghose
- Biologics Process Development, Bristol Myers Squibb, Devens, MA 01434, USA
| | - Zheng Jian Li
- Biologics Process Development, Bristol Myers Squibb, Devens, MA 01434, USA
| | - Abraham M Lenhoff
- Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, DE 19716, USA.
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Mosleh I, Khosropour AR, Aljewari H, Carbrello C, Qian X, Wickramasinghe R, Abbaspourrad A, Beitle R. Cationic Covalent Organic Framework as an Ion Exchange Material for Efficient Adsorptive Separation of Biomolecules. ACS APPLIED MATERIALS & INTERFACES 2021; 13:35019-35025. [PMID: 34264068 DOI: 10.1021/acsami.1c11270] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Although covalent organic frameworks (COFs) have earned significant interest in separation applications, the use of COFs in biomolecule separation remains unexplored. We examined the ionic COF Py-BPy2+-COF as an ion exchange material for biomolecule separation. After characterizing the properties of the synthesized COF with a variety of techniques, binding experiments with both large and small biomolecules were performed. High adsorption capacities of amino acids with different hydrophobicity and charge, as well as proteins of different isoelectric points and molecular weights, were determined in batch equilibrium experiments. Desorption experiments with mixtures of model proteins demonstrated an ability to successfully separate one protein from another with the selectivity hypothesized to be a combination of the isoelectric point, hydrophobicity, and ability to penetrate the crystalline material. Overall, the results demonstrated that Py-BPy2+-COF can be exploited as a robust crystalline anion exchange biomolecule separation material.
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Affiliation(s)
- Imann Mosleh
- Ralph E. Martin Department of Chemical Engineering, University of Arkansas, Fayetteville, Arkansas 72701, United States
- Department of Food Science, Cornell University, Ithaca, New York 14850, United States
| | - Ahmad R Khosropour
- Department of Food Science, Cornell University, Ithaca, New York 14850, United States
| | - Hazim Aljewari
- Ralph E. Martin Department of Chemical Engineering, University of Arkansas, Fayetteville, Arkansas 72701, United States
| | | | - Xianghong Qian
- Department of Biomedical Engineering, University of Arkansas, Fayetteville, Arkansas 72701, United States
| | - Ranil Wickramasinghe
- Ralph E. Martin Department of Chemical Engineering, University of Arkansas, Fayetteville, Arkansas 72701, United States
| | - Alireza Abbaspourrad
- Department of Food Science, Cornell University, Ithaca, New York 14850, United States
| | - Robert Beitle
- Ralph E. Martin Department of Chemical Engineering, University of Arkansas, Fayetteville, Arkansas 72701, United States
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Briskot T, Hahn T, Huuk T, Wang G, Kluters S, Studts J, Wittkopp F, Winderl J, Schwan P, Hagemann I, Kaiser K, Trapp A, Stamm SM, Koehn J, Malmquist G, Hubbuch J. Analysis of complex protein elution behavior in preparative ion exchange processes using a colloidal particle adsorption model. J Chromatogr A 2021; 1654:462439. [PMID: 34384923 DOI: 10.1016/j.chroma.2021.462439] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Revised: 07/15/2021] [Accepted: 07/18/2021] [Indexed: 12/28/2022]
Abstract
A fundamental understanding of the protein retention mechanism in preparative ion exchange (IEX) chromatography columns is essential for a model-based process development approach. For the past three decades, the mechanistic description of protein retention has been based predominantly on the steric mass action (SMA) model. In recent years, however, retention profiles of proteins have been reported more frequently for preparative processes that are not consistent with the mechanistic understanding relying on the SMA model. In this work, complex elution behavior of proteins in preparative IEX processes is analyzed using a colloidal particle adsorption (CPA) model. The CPA model is found to be capable of reproducing elution profiles that cannot be described by the traditional SMA model. According to the CPA model, the reported complex behavior can be ascribed to a strong compression and concentration of the elution front in the lower unsaturated part of the chromatography column. As the unsaturated part of the column decreases with increasing protein load density, exceeding a critical load density can lead to the formation of a shoulder in the peak front. The general applicability of the model in describing preparative IEX processes is demonstrated using several industrial case studies including multiple monoclonal antibodies on different IEX adsorber systems. In this context, the work covers both salt controlled and pH-controlled protein elution.
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Affiliation(s)
- Till Briskot
- GoSilico GmbH, Kriegsstr. 240, Karlsruhe 76135, Germany; Institute of Engineering in Life Sciences, Section IV: Biomolecular Separation Engineering, Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 2, Karlsruhe 76131, Germany
| | - Tobias Hahn
- GoSilico GmbH, Kriegsstr. 240, Karlsruhe 76135, Germany
| | - Thiemo Huuk
- GoSilico GmbH, Kriegsstr. 240, Karlsruhe 76135, Germany
| | - Gang Wang
- Late Stage DSP Development, Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach an der Riß 88397, Germany
| | - Simon Kluters
- Late Stage DSP Development, Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach an der Riß 88397, Germany
| | - Joey Studts
- Late Stage DSP Development, Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach an der Riß 88397, Germany
| | - Felix Wittkopp
- Pharma Research and Early Development (pRED), Roche Innovation Center Munich, Roche Diagnostics GmbH, Nonnenwald 2, Penzberg 82377, Germany
| | - Johannes Winderl
- Roche Pharma Technical Development, Roche Diagnostics GmbH, Nonnenwald 2, Penzberg 82377, Germany
| | | | | | | | - Anja Trapp
- Process Science & Innovation, Rentschler Biopharma SE, Erwin Rentschler Str. 21, Laupheim 88471, Germany
| | - Serge M Stamm
- Process Science & Innovation, Rentschler Biopharma SE, Erwin Rentschler Str. 21, Laupheim 88471, Germany
| | - Jadranka Koehn
- Process Science & Innovation, Rentschler Biopharma SE, Erwin Rentschler Str. 21, Laupheim 88471, Germany
| | | | - Jürgen Hubbuch
- Institute of Engineering in Life Sciences, Section IV: Biomolecular Separation Engineering, Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 2, Karlsruhe 76131, Germany.
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Briskot T, Hahn T, Huuk T, Hubbuch J. Protein adsorption on ion exchange adsorbers: A comparison of a stoichiometric and non-stoichiometric modeling approach. J Chromatogr A 2021; 1653:462397. [PMID: 34284263 DOI: 10.1016/j.chroma.2021.462397] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Revised: 07/02/2021] [Accepted: 07/05/2021] [Indexed: 11/18/2022]
Abstract
For mechanistic modeling of ion exchange (IEX) processes, a profound understanding of the adsorption mechanism is important. While the description of protein adsorption in IEX processes has been dominated by stoichiometric models like the steric mass action (SMA) model, discrepancies between experimental data and model results suggest that the conceptually simple stoichiometric description of protein adsorption provides not always an accurate representation of nonlinear adsorption behavior. In this work an alternative colloidal particle adsorption (CPA) model is introduced. Based on the colloidal nature of proteins, the CPA model provides a non-stoichiometric description of electrostatic interactions within IEX columns. Steric hindrance at the adsorber surface is considered by hard-body interactions between proteins using the scaled-particle theory. The model's capability of describing nonlinear protein adsorption is demonstrated by simulating adsorption isotherms of a monoclonal antibody (mAb) over a wide range of ionic strength and pH. A comparison of the CPA model with the SMA model shows comparable model results in the linear adsorption range, but significant differences in the nonlinear adsorption range due to the different mechanistic interpretation of steric hindrance in both models. The results suggest that nonlinear adsorption effects can be overestimated by the stoichiometric formalism of the SMA model and are generally better reproduced by the CPA model.
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Affiliation(s)
- Till Briskot
- GoSilico GmbH, Kriegsstr. 240, Karlsruhe 76135, Germany; Institute of Engineering in Life Sciences, Section IV: Biomolecular Separation Engineering, Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 2, Karlsruhe 76131, Germany
| | - Tobias Hahn
- GoSilico GmbH, Kriegsstr. 240, Karlsruhe 76135, Germany
| | - Thiemo Huuk
- GoSilico GmbH, Kriegsstr. 240, Karlsruhe 76135, Germany
| | - Jürgen Hubbuch
- Institute of Engineering in Life Sciences, Section IV: Biomolecular Separation Engineering, Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 2, Karlsruhe 76131, Germany.
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Tournois M, Mathé S, André I, Esque J, Fernández MA. Surface charge distribution: a key parameter for understanding protein behavior in chromatographic processes. J Chromatogr A 2021; 1648:462151. [PMID: 33992992 DOI: 10.1016/j.chroma.2021.462151] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 04/07/2021] [Accepted: 04/09/2021] [Indexed: 11/28/2022]
Abstract
Multi-component adsorption of proteins still requires a better understanding of local phenomena to improve the development of predictive models. In this work, all-atom Molecular Dynamics (MD) simulations were used to investigate the influence of protein charge distribution on the adsorption capacity. The simultaneous adsorption of α-chymotrypsin and lysozyme on a cation exchanger, SP Sepharose FF, was studied through MD simulations and compared to macroscopic isotherm experiments. It appears that the charge distribution is a relevant information to better understand specific phenomena, such as a multilayer adsorption caused by the particular electrostatic profile of α-chymotrypsin. Therefore, MD simulations seem to be an interesting way to visualize and highlight these behaviors.
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Affiliation(s)
- Marine Tournois
- TBI, Université de Toulouse, CNRS, INRAE, INSA, Toulouse, France
| | - Stéphane Mathé
- TBI, Université de Toulouse, CNRS, INRAE, INSA, Toulouse, France
| | - Isabelle André
- TBI, Université de Toulouse, CNRS, INRAE, INSA, Toulouse, France
| | - Jérémy Esque
- TBI, Université de Toulouse, CNRS, INRAE, INSA, Toulouse, France
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