1
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Understanding adsorption behavior of antiviral labyrinthopeptin peptides in anion exchange chromatography. J Chromatogr A 2023; 1690:463792. [PMID: 36681006 DOI: 10.1016/j.chroma.2023.463792] [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: 09/29/2022] [Revised: 01/09/2023] [Accepted: 01/10/2023] [Indexed: 01/13/2023]
Abstract
Lantipeptides from bacterial sources are increasingly important as biopharmaceuticals because of their broad range of applications. However, the availability of most lantipeptides is low, and systematic approaches for downstream processing of this group of peptides is still lacking. Model-based development for chromatographic separations has proven to be a useful tool for developing reliable purification processes. One important compound of such a model is the adsorption behavior of the components of interest. In ion-exchange chromatography, the adsorption equilibrium between salt and proteins can be described using the steric mass action (SMA) formalism. Beyond, the model parameters may be related to the lanthipeptides physico-chemical properties. In this study, the antiviral lantipeptides labyrinthopeptin A1 and A2, purified from Actinomadura namibiensis culture broth, were characterized for their adsorption behavior in anion-exchange chromatography in the range from pH 5.0-7.4. The experiments necessary to determine the three SMA parameters were chosen in a way to limit the amount of peptides needed. Linear gradient elution was applied successfully to separate A1 and A2 and to determine the characteristic charge νi and the equilibrium constant [Formula: see text] . Batch adsorption experiments using a robotic workstation for high throughput and accuracy provided non-linear adsorption isotherms and the steric factor σi. Labyrinthopeptin A1 and A2 show a very different adsorption behavior even though the fundamental structure of the two peptides is similar. keq of A1 ranging from 0.18 to 0.88 are approximately one order of magnitude smaller than that of A2 ranging from 3.44 to 9.73 indicating the higher affinity of A2 to the stationary phase. At pH 7.0 σ was 1.12 and 0.60 for A1 and A2, respectively which was expected based on the molecular weight of the peptides. The characteristic charge for both peptides was also theoretically estimated from the amino acids involved in electrostatic interactions which was in good agreement with experimental data. Thereby, this work provides an useful approach to estimate SMA parameters based on simple structural information that can be applied early in chromatographic ion-exchange process development for peptides and may help adapting the processes for future designed lanthipeptides.
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2
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Rezvani K, Smith A, Javed J, Keller WR, Stewart KD, Kim L, Newell KJ. Demonstration of continuous gradient elution functionality with automated liquid handling systems for high-throughput purification process development. J Chromatogr A 2023; 1687:463658. [PMID: 36450201 DOI: 10.1016/j.chroma.2022.463658] [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: 08/17/2022] [Revised: 11/18/2022] [Accepted: 11/20/2022] [Indexed: 11/23/2022]
Abstract
Various high-throughput systems and strategies are employed by the biopharmaceutical industry for early to late-stage process development for biologics manufacturing. The associated increases to experiment productivity and reduction in material consumption makes high throughput tools integral for bioprocess development. While these high-throughput systems have been successfully leveraged to generate high quality data representative of manufacturing scale processes, their data interpretation often requires complex data transformation and time-intensive system characterization. With respect to high throughput purification development, RoboColumns by Repligen operated on Tecan automated liquid handling systems offer superior performance scalability, but lack an optimized liquid delivery system that is representative of preparative chromatography. Particularly, stock Tecan liquid handling systems lack the capability to provide high-capacity continuous liquid flow and ideal linear gradient chromatography conditions. These limitations impact protein chromatography performance and hinder the application of high-throughput gradient elution experiments. In this work, we describe a Tecan Freedom EVO high-throughput purification tool that provides more continuous liquid delivery enabling continuous gradient elution capability for RoboColumn experiments as demonstrated by generation of highly linear conductivity gradients. Results demonstrate that the tool can provide RoboColumn performance and product quality data that is in agreement with larger, bench scale chromatography formats for two model purification methods. The described gradient purification method also provides more consistent performance between RoboColumns and larger column formats compared to step elution methods using the same optimized Tecan system. Lastly, new insights into the impact of discontinuous flow on RoboColumn elution performance are introduced, which may help further improve application of these data towards bioprocess development.
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Affiliation(s)
- Kamiyar Rezvani
- Purification Process Sciences, BioPharmaceuticals Development, R&D, AstraZeneca, Gaithersburg, US
| | - Andrew Smith
- Robotics & Automation Development, BioPharmaceuticals Development, R&D, AstraZeneca, Gaithersburg, US
| | - Jannat Javed
- Robotics & Automation Development, BioPharmaceuticals Development, R&D, AstraZeneca, Gaithersburg, US
| | - William R Keller
- Purification Process Sciences, BioPharmaceuticals Development, R&D, AstraZeneca, Gaithersburg, US
| | - Kevin D Stewart
- Robotics & Automation Development, BioPharmaceuticals Development, R&D, AstraZeneca, Gaithersburg, US
| | - Logan Kim
- Purification Process Sciences, BioPharmaceuticals Development, R&D, AstraZeneca, Gaithersburg, US
| | - Kelcy J Newell
- Robotics & Automation Development, BioPharmaceuticals Development, R&D, AstraZeneca, Gaithersburg, US.
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3
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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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4
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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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5
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Saleh D, Wang G, Mueller B, Rischawy F, Kluters S, Studts J, Hubbuch J. Cross-scale quality assessment of a mechanistic cation exchange chromatography model. Biotechnol Prog 2020; 37:e3081. [PMID: 32926575 DOI: 10.1002/btpr.3081] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 09/02/2020] [Accepted: 09/11/2020] [Indexed: 12/13/2022]
Abstract
Cation exchange chromatography (CEX) is an essential part of most monoclonal antibody (mAb) purification platforms. Process characterization and root cause investigation of chromatographic unit operations are performed using scale down models (SDM). SDM chromatography columns typically have the identical bed height as the respective manufacturing-scale, but a significantly reduced inner diameter. While SDMs enable process development demanding less material and time, their comparability to manufacturing-scale can be affected by variability in feed composition, mobile phase and resin properties, or dispersion effects depending on the chromatography system at hand. Mechanistic models can help to close gaps between scales and reduce experimental efforts compared to experimental SDM applications. In this study, a multicomponent steric mass-action (SMA) adsorption model was applied to the scale-up of a CEX polishing step. Based on chromatograms and elution pool data ranging from laboratory- to manufacturing-scale, the proposed modeling workflow enabled early identification of differences between scales, for example, system dispersion effects or ionic capacity variability. A multistage model qualification approach was introduced to measure the model quality and to understand the model's limitations across scales. The experimental SDM and the in silico model were qualified against large-scale data using the identical state of the art equivalence testing procedure. The mechanistic chromatography model avoided limitations of the SDM by capturing effects of bed height, loading density, feed composition, and mobile phase properties. The results demonstrate the applicability of mechanistic chromatography models as a possible alternative to conventional SDM approaches.
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Affiliation(s)
- David Saleh
- Late Stage DSP Development, Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach, Germany.,Section IV: Biomolecular Separation Engineering, Karlsruhe Institute of Technology (KIT), Institute of Engineering in Life Sciences, Karlsruhe, Germany
| | - Gang Wang
- Late Stage DSP Development, Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach, Germany
| | - Benedict Mueller
- Late Stage DSP Development, Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach, Germany
| | - Federico Rischawy
- Late Stage DSP Development, Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach, Germany.,Section IV: Biomolecular Separation Engineering, Karlsruhe Institute of Technology (KIT), Institute of Engineering in Life Sciences, Karlsruhe, Germany
| | - Simon Kluters
- Late Stage DSP Development, Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach, Germany
| | - Joey Studts
- Late Stage DSP Development, Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach, Germany
| | - Jürgen Hubbuch
- Section IV: Biomolecular Separation Engineering, Karlsruhe Institute of Technology (KIT), Institute of Engineering in Life Sciences, Karlsruhe, Germany
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6
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Stein D, Thom V, Hubbuch J. High throughput screening setup of a scale-down device for membrane chromatography-aggregate removal of monoclonal antibodies. Biotechnol Prog 2020; 36:e3055. [PMID: 32710474 DOI: 10.1002/btpr.3055] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 07/18/2020] [Accepted: 07/23/2020] [Indexed: 11/07/2022]
Abstract
In biopharmaceutical process development, resin-based high throughput screening (HTS) is well known for overcoming experimental limitations by permitting automated parallel processing at miniaturized scale, which results in fast data generation and reduced feed consumption. For membrane adsorber (MA), HTS solutions have so far only been available to a partial extent. Three case studies were performed with the aim of aligning HTS applications for MAs with those established for column chromatography: Process parameter range determination, mechanistic modeling (MM), and scalability. In order to exploit the MA typically features, such as high mass transfer and easy scalability, for scalable high throughput process development, a scale-down device (SDD) for MA was developed. Its applicability is confirmed for a monoclonal antibody aggregate removal step. The first case study explores the experimental application of the SDD developed. It uses bind and elute mode and variations of pH and salt concentration to obtain process operation windows for ion-exchange MAs Sartobind® S and Q. In the second case study, we successfully developed a mechanistic model based on parameters obtained from the SDD-HTS setup. The results proved to validate the use of the SDD developed for parameter estimation and thus model-based process development. The third case study shows the transferability and scalability of data from the SDD-HTS setup using both a direct scale factor and MM. Both approaches show good applicability with a deviation below 20% in the prediction of 10% dynamic breakthrough capacity and reliable scale-up from 0.42 to 800 ml.
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Affiliation(s)
- Dominik Stein
- Sartorius Stedim Biotech GmbH, Goettingen, Germany.,Department of Engineering in Life Sciences, Section IV: Biomolecular Separation Engineering, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Volkmar Thom
- Sartorius Stedim Biotech GmbH, Goettingen, Germany
| | - Jürgen Hubbuch
- Department of Engineering in Life Sciences, Section IV: Biomolecular Separation Engineering, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
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7
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Saleh D, Wang G, Müller B, Rischawy F, Kluters S, Studts J, Hubbuch J. Straightforward method for calibration of mechanistic cation exchange chromatography models for industrial applications. Biotechnol Prog 2020; 36:e2984. [DOI: 10.1002/btpr.2984] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 02/03/2020] [Accepted: 02/19/2020] [Indexed: 12/31/2022]
Affiliation(s)
- David Saleh
- Late Stage DSP DevelopmentBoehringer Ingelheim Pharma GmbH & Co. KG Biberach Germany
- Institute of Engineering in Life Sciences, Section IV: Biomolecular Separation Engineering, Karlsruhe Institute of Technology (KIT) Karlsruhe Germany
| | - Gang Wang
- Late Stage DSP DevelopmentBoehringer Ingelheim Pharma GmbH & Co. KG Biberach Germany
| | - Benedict Müller
- Late Stage DSP DevelopmentBoehringer Ingelheim Pharma GmbH & Co. KG Biberach Germany
| | - Federico Rischawy
- Late Stage DSP DevelopmentBoehringer Ingelheim Pharma GmbH & Co. KG Biberach Germany
- Institute of Engineering in Life Sciences, Section IV: Biomolecular Separation Engineering, Karlsruhe Institute of Technology (KIT) Karlsruhe Germany
| | - Simon Kluters
- Late Stage DSP DevelopmentBoehringer Ingelheim Pharma GmbH & Co. KG Biberach Germany
| | - Joey Studts
- Late Stage DSP DevelopmentBoehringer Ingelheim Pharma GmbH & Co. KG Biberach Germany
| | - Jürgen Hubbuch
- Institute of Engineering in Life Sciences, Section IV: Biomolecular Separation Engineering, Karlsruhe Institute of Technology (KIT) Karlsruhe Germany
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8
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Adsorption of colloidal proteins in ion-exchange chromatography under consideration of charge regulation. J Chromatogr A 2020; 1611:460608. [DOI: 10.1016/j.chroma.2019.460608] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 09/26/2019] [Accepted: 10/07/2019] [Indexed: 01/21/2023]
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9
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Prediction of lab and manufacturing scale chromatography performance using mini-columns and mechanistic modeling. J Chromatogr A 2019; 1593:54-62. [DOI: 10.1016/j.chroma.2019.01.063] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 01/21/2019] [Accepted: 01/23/2019] [Indexed: 11/18/2022]
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10
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Packing quality, protein binding capacity and separation efficiency of pre-packed columns ranging from 1 mL laboratory to 57 L industrial scale. J Chromatogr A 2019; 1591:79-86. [DOI: 10.1016/j.chroma.2019.01.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Revised: 09/28/2018] [Accepted: 01/07/2019] [Indexed: 11/19/2022]
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11
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Stamatis C, Goldrick S, Gruber D, Turner R, Titchener-Hooker NJ, Farid SS. High throughput process development workflow with advanced decision-support for antibody purification. J Chromatogr A 2019; 1596:104-116. [PMID: 30885400 DOI: 10.1016/j.chroma.2019.03.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 02/28/2019] [Accepted: 03/03/2019] [Indexed: 10/27/2022]
Abstract
Chromatography remains the workhorse in antibody purification; however process development and characterisation still require significant resources. The high number of operating parameters involved requires extensive experimentation, traditionally performed at small- and pilot-scale, leading to demands in terms of materials and time that can be a challenge. The main objective of this research was the establishment of a novel High Throughput Process Development (HTPD) workflow combining scale-down chromatography experimentation with advanced decision-support techniques in order to minimise the consumption of resources and accelerate the development timeframe. Additionally, the HTPD workflow provides a framework to rapidly manipulate large datasets in an automated fashion. The central component of the HTPD workflow is the systematic integration of a microscale chromatography experimentation strategy with an advanced chromatogram evaluation method, design of experiments (DoE) and multivariate data analysis. The outputs of this are leveraged into the screening and optimisation components of the workflow. For the screening component, a decision-support tool was developed combining different multi-criteria decision-making techniques to enable a fair comparison of a number of CEX resin candidates and determine those that demonstrate superior purification performance. This provided a rational methodology for screening chromatography resins and process parameters. For the optimisation component, the workflow leverages insights provided through screening experimentation to guide subsequent DoE experiments so as to tune significant process parameters for the selected resin. The resulting empirical correlations are linked to a stochastic modelling technique so as to predict the optimal and most robust chromatographic process parameters to achieve the desired performance criteria.
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Affiliation(s)
- Christos Stamatis
- The Advanced Centre for Biochemical Engineering, Department of Biochemical Engineering, University College London, Gower Street, London WC1E 6BT, UK; MedImmune Limited, Milstein Building, Granta Park, Cambridge CB1 6GH, UK
| | - Stephen Goldrick
- The Advanced Centre for Biochemical Engineering, Department of Biochemical Engineering, University College London, Gower Street, London WC1E 6BT, UK; MedImmune Limited, Milstein Building, Granta Park, Cambridge CB1 6GH, UK
| | - David Gruber
- MedImmune Limited, Milstein Building, Granta Park, Cambridge CB1 6GH, UK
| | - Richard Turner
- MedImmune Limited, Milstein Building, Granta Park, Cambridge CB1 6GH, UK
| | - Nigel J Titchener-Hooker
- The Advanced Centre for Biochemical Engineering, Department of Biochemical Engineering, University College London, Gower Street, London WC1E 6BT, UK
| | - Suzanne S Farid
- The Advanced Centre for Biochemical Engineering, Department of Biochemical Engineering, University College London, Gower Street, London WC1E 6BT, UK.
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12
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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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13
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Briskot T, Stückler F, Wittkopp F, Williams C, Yang J, Konrad S, Doninger K, Griesbach J, Bennecke M, Hepbildikler S, Hubbuch J. Prediction uncertainty assessment of chromatography models using Bayesian inference. J Chromatogr A 2018; 1587:101-110. [PMID: 30579636 DOI: 10.1016/j.chroma.2018.11.076] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 11/19/2018] [Accepted: 11/28/2018] [Indexed: 12/18/2022]
Abstract
Mechanistic modeling of chromatography has been around in academia for decades and has gained increased support in pharmaceutical companies in recent years. Despite the large number of published successful applications, process development in the pharmaceutical industry today still does not fully benefit from a systematic mechanistic model-based approach. The hesitation on the part of industry to systematically apply mechanistic models can often be attributed to the absence of a general approach for determining if a model is qualified to support decision making in process development. In this work a Bayesian framework for the calibration and quality assessment of mechanistic chromatography models is introduced. Bayesian Markov Chain Monte Carlo is used to assess parameter uncertainty by generating samples from the parameter posterior distribution. Once the parameter posterior distribution has been estimated, it can be used to propagate the parameter uncertainty to model predictions, allowing a prediction-based uncertainty assessment of the model. The benefit of this uncertainty assessment is demonstrated using the example of a mechanistic model describing the separation of an antibody from its impurities on a strong cation exchanger. The mechanistic model was calibrated at moderate column load density and used to make extrapolations at high load conditions. Using the Bayesian framework, it could be shown that despite significant parameter uncertainty, the model can extrapolate beyond observed process conditions with high accuracy and is qualified to support process development.
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Affiliation(s)
- Till Briskot
- Roche Pharma Technical Development, Roche Diagnostics GmbH, Nonnenwald 2, 82377, Penzberg, Germany
| | - Ferdinand Stückler
- Roche Pharma Technical Development, Roche Diagnostics GmbH, Nonnenwald 2, 82377, Penzberg, Germany
| | - Felix Wittkopp
- Roche Pharma Research and Early Development, Roche Innovation Center Munich, Roche Diagnostics GmbH, Nonnenwald 2, 82377, Penzberg, Germany
| | - Christopher Williams
- Department of Purification Development, Genentech Inc., 1 DNA Way, South San Francisco, CA, 94080, USA
| | - Jessica Yang
- Department of Purification Development, Genentech Inc., 1 DNA Way, South San Francisco, CA, 94080, USA
| | - Susanne Konrad
- Roche Pharma Technical Development, Roche Diagnostics GmbH, Nonnenwald 2, 82377, Penzberg, Germany
| | - Katharina Doninger
- Roche Pharma Technical Development, Roche Diagnostics GmbH, Nonnenwald 2, 82377, Penzberg, Germany
| | - Jan Griesbach
- Roche Pharma Technical Development, Roche Diagnostics GmbH, Nonnenwald 2, 82377, Penzberg, Germany
| | - Moritz Bennecke
- Roche Pharma Technical Development, Roche Diagnostics GmbH, Nonnenwald 2, 82377, Penzberg, Germany
| | - Stefan Hepbildikler
- Roche Pharma Technical Development, Roche Diagnostics GmbH, Nonnenwald 2, 82377, Penzberg, Germany
| | - Jürgen Hubbuch
- Institute of Engineering in Life Sciences, Section IV: Biomolecular Separation Engineering, Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 2, 76131, Karlsruhe, Germany.
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14
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Pirrung SM, Parruca da Cruz D, Hanke AT, Berends C, Van Beckhoven RFWC, Eppink MHM, Ottens M. Chromatographic parameter determination for complex biological feedstocks. Biotechnol Prog 2018; 34:1006-1018. [PMID: 29693326 PMCID: PMC6175100 DOI: 10.1002/btpr.2642] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 04/12/2018] [Indexed: 11/23/2022]
Abstract
The application of mechanistic models for chromatography requires accurate model parameters. Especially for complex feedstocks such as a clarified cell harvest, this can still be an obstacle limiting the use of mechanistic models. Another commonly encountered obstacle is a limited amount of sample material and time to determine all needed parameters. Therefore, this study aimed at implementing an approach on a robotic liquid handling system that starts directly with a complex feedstock containing a monoclonal antibody. The approach was tested by comparing independent experimental data sets with predictions generated by the mechanistic model using all parameters determined in this study. An excellent agreement between prediction and experimental data was found verifying the approach. Thus, it can be concluded that RoboColumns with a bed volume of 200 μL can well be used to determine isotherm parameters for predictions of larger scale columns. Overall, this approach offers a new way to determine crucial model input parameters for mechanistic modelling of chromatography for complex biological feedstocks. © 2018 The Authors Biotechnology Progress published by Wiley Periodicals, Inc. on behalf of American Institute of Chemical Engineers Biotechnol. Prog., 34:1006–1018, 2018
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Affiliation(s)
- Silvia M Pirrung
- Dept. of Biotechnology, Delft University of Technology, Van der Maasweg 9, Delft, 2629 HZ, the Netherlands
| | - Diogo Parruca da Cruz
- Dept. of Biotechnology, Delft University of Technology, Van der Maasweg 9, Delft, 2629 HZ, the Netherlands
| | - Alexander T Hanke
- Dept. of Biotechnology, Delft University of Technology, Van der Maasweg 9, Delft, 2629 HZ, the Netherlands
| | - Carmen Berends
- Dept. of Biotechnology, Delft University of Technology, Van der Maasweg 9, Delft, 2629 HZ, the Netherlands
| | | | - Michel H M Eppink
- Synthon Biopharmaceuticals BV, Microweg 22, GN Nijmegen, 6503, the Netherlands
| | - Marcel Ottens
- Dept. of Biotechnology, Delft University of Technology, Van der Maasweg 9, Delft, 2629 HZ, the Netherlands
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Process Analytical Approach towards Quality Controlled Process Automation for the Downstream of Protein Mixtures by Inline Concentration Measurements Based on Ultraviolet/Visible Light (UV/VIS) Spectral Analysis. Antibodies (Basel) 2017; 6:antib6040024. [PMID: 31548539 PMCID: PMC6698811 DOI: 10.3390/antib6040024] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 11/29/2017] [Accepted: 12/06/2017] [Indexed: 11/17/2022] Open
Abstract
Downstream of pharmaceutical proteins, such as monoclonal antibodies, is mainly done by chromatography, where concentration determination of coeluting components presents a major problem. Inline concentration measurements (ICM) by Ultraviolet/Visible light (UV/VIS)-spectral data analysis provide a label-free and noninvasive approach to significantly speed up the analysis and process time. Here, two different approaches are presented. For a test mixture of three proteins, a fast and easily calibrated method based on the non-negative least-squares algorithm is shown, which reduces the calibration effort compared to a partial least-squares approach. The accuracy of ICM for analytical separations of three proteins on an ion exchange column is over 99%, compared to less than 85% for classical peak area evaluation. The power of the partial least squares algorithm (PLS) is shown by measuring the concentrations of Immunoglobulin G (IgG) monomer and dimer under a worst-case scenario of completely overlapping peaks. Here, the faster SIMPLS algorithm is used in comparison to the nonlinear iterative partial least squares (NIPALS) algorithm. Both approaches provide concentrations as well as purities in real-time, enabling live-pooling decisions based on product quality. This is one important step towards advanced process automation of chromatographic processes. Analysis time is less than 100 ms and only one program is used for all the necessary communications and calculations.
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Keller WR, Evans ST, Ferreira G, Robbins D, Cramer SM. Understanding operational system differences for transfer of miniaturized chromatography column data using simulations. J Chromatogr A 2017; 1515:154-163. [DOI: 10.1016/j.chroma.2017.07.091] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Revised: 07/21/2017] [Accepted: 07/31/2017] [Indexed: 11/26/2022]
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Evans ST, Stewart KD, Afdahl C, Patel R, Newell KJ. Optimization of a micro-scale, high throughput process development tool and the demonstration of comparable process performance and product quality with biopharmaceutical manufacturing processes. J Chromatogr A 2017; 1506:73-81. [DOI: 10.1016/j.chroma.2017.05.041] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Revised: 05/15/2017] [Accepted: 05/16/2017] [Indexed: 11/30/2022]
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Sellberg A, Holmqvist A, Magnusson F, Andersson C, Nilsson B. Discretized multi-level elution trajectory: A proof-of-concept demonstration. J Chromatogr A 2017; 1481:73-81. [DOI: 10.1016/j.chroma.2016.12.038] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Revised: 12/13/2016] [Accepted: 12/14/2016] [Indexed: 10/20/2022]
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20
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Kiesewetter A, Menstell P, Peeck LH, Stein A. Development of pseudo-linear gradient elution for high-throughput resin selectivity screening in RoboColumn ® Format. Biotechnol Prog 2016; 32:1503-1519. [PMID: 27604682 PMCID: PMC6585662 DOI: 10.1002/btpr.2363] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Revised: 08/29/2016] [Indexed: 11/30/2022]
Abstract
Rapid development of chromatographic processes relies on effective high‐throughput screening (HTS) methods. This article describes the development of pseudo‐linear gradient elution for resin selectivity screening using RoboColumns®. It gives guidelines for the implementation of this HTS method on a Tecan Freedom EVO® robotic platform, addressing fundamental aspects of scale down and liquid handling. The creation of a flexible script for buffer preparation and column operation plus efficient data processing provided the basis for this work. Based on the concept of discretization, linear gradient elution was transformed into multistep gradients. The impact of column size, flow rate, multistep gradient design, and fractionation scheme on separation efficiency was systematically investigated, using a ternary model protein mixture. We identified key parameters and defined optimal settings for effective column performance. For proof of concept, we examined the selectivity of several cation exchange resins using various buffer conditions. The final protocol enabled a clear differentiation of resin selectivity on miniature chromatography column (MCC) scale. Distinct differences in separation behavior of individual resins and the influence of buffer conditions could be demonstrated. Results obtained with the robotic platform were representative and consistent with data generated on a conventional chromatography system. A study on antibody monomer/high molecular weight separation comparing MCC and lab scale under higher loading conditions provided evidence of the applicability of the miniaturized approach to practically relevant feedstocks with challenging separation tasks as well as of the predictive quality for larger scale. A comparison of varying degrees of robotic method complexity with corresponding effort (analysis time and labware consumption) and output quality highlights tradeoffs to select a method appropriate for a given separation challenge or analytical constraints. © 2016 American Institute of Chemical Engineers Biotechnol. Prog., 32:1503–1519, 2016
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Affiliation(s)
| | | | - Lars H Peeck
- Life Science devision, Merck KGaA, Darmstadt, Germany
| | - Andreas Stein
- Life Science devision, Merck KGaA, Darmstadt, Germany
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Hanke AT, Tsintavi E, Ramirez Vazquez MDP, van der Wielen LAM, Verhaert PDEM, Eppink MHM, van de Sandt EJAX, Ottens M. 3D-liquid chromatography as a complex mixture characterization tool for knowledge-based downstream process development. Biotechnol Prog 2016; 32:1283-1291. [DOI: 10.1002/btpr.2320] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Revised: 06/07/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Alexander T. Hanke
- Dept. of Biotechnology; Delft University of Technology, Van der Maasweg 9, 2629 HZ; Delft The Netherlands
| | - Eleni Tsintavi
- Dept. of Biotechnology; Delft University of Technology, Van der Maasweg 9, 2629 HZ; Delft The Netherlands
| | | | - Luuk A. M. van der Wielen
- Dept. of Biotechnology; Delft University of Technology, Van der Maasweg 9, 2629 HZ; Delft The Netherlands
| | - Peter D. E. M. Verhaert
- Dept. of Biotechnology; Delft University of Technology, Van der Maasweg 9, 2629 HZ; Delft The Netherlands
| | - Michel H. M. Eppink
- Synthon Biopharmaceuticals B.V., Microweg 22, 6503 GN, Nijmegen; Nijmegen The Netherlands
| | | | - Marcel Ottens
- Dept. of Biotechnology; Delft University of Technology, Van der Maasweg 9, 2629 HZ; Delft The Netherlands
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22
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Khalaf R, Heymann J, LeSaout X, Monard F, Costioli M, Morbidelli M. Model-based high-throughput design of ion exchange protein chromatography. J Chromatogr A 2016; 1459:67-77. [DOI: 10.1016/j.chroma.2016.06.076] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Revised: 06/19/2016] [Accepted: 06/24/2016] [Indexed: 01/11/2023]
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23
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Huuk TC, Briskot T, Hahn T, Hubbuch J. A versatile noninvasive method for adsorber quantification in batch and column chromatography based on the ionic capacity. Biotechnol Prog 2016; 32:666-77. [PMID: 27324662 DOI: 10.1002/btpr.2228] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Revised: 01/06/2016] [Indexed: 01/16/2023]
Abstract
Within the Quality by Design (QbD) framework proposed by the International Conference on Harmonisation (ICH), high-throughput process development (HTPD) and mechanistic modeling are of outstanding importance for future biopharmaceutical chromatography process development. In order to compare the data derived from different column scales or batch chromatographies, the amount of adsorber has to be quantified with the same noninvasive method. Similarly, an important requirement for the implementation of mechanistic modeling is the reliable determination of column characteristics such as the ionic capacity Λ for ion-exchange chromatography with the same method at all scales and formats. We developed a method to determine the ionic capacity in column and batch chromatography, based on the adsorption/desorption of the natural, uv-detectable amino acid histidine. In column chromatography, this method produces results comparable to those of classical acid-base titration. In contrast to acid-base titration, this method can be adapted to robotic batch chromatographic experiments. We are able to convert the adsorber volumes in batch chromatography to the equivalent volume of a compressed column. In a case study, we demonstrate that this method increases the quality of SMA parameters fitted to batch adsorption isotherms, and the capability to predict column breakthrough experiments. © 2016 American Institute of Chemical Engineers Biotechnol. Prog., 32:666-677, 2016.
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Affiliation(s)
- Thiemo C Huuk
- Karlsruhe Institute of Technology (KIT), Inst. of Process Engineering in Life Sciences, Section IV: Biomolecular Separation Engineering, Karlsruhe, Germany
| | - Till Briskot
- Karlsruhe Institute of Technology (KIT), Inst. of Process Engineering in Life Sciences, Section IV: Biomolecular Separation Engineering, Karlsruhe, Germany
| | - Tobias Hahn
- Karlsruhe Institute of Technology (KIT), Inst. of Process Engineering in Life Sciences, Section IV: Biomolecular Separation Engineering, Karlsruhe, Germany
| | - Jürgen Hubbuch
- Karlsruhe Institute of Technology (KIT), Inst. of Process Engineering in Life Sciences, Section IV: Biomolecular Separation Engineering, Karlsruhe, Germany
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24
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Petroff MG, Bao H, Welsh JP, van Beuningen - de Vaan M, Pollard JM, Roush DJ, Kandula S, Machielsen P, Tugcu N, Linden TO. High throughput chromatography strategies for potential use in the formal process characterization of a monoclonal antibody. Biotechnol Bioeng 2015; 113:1273-83. [DOI: 10.1002/bit.25901] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2015] [Revised: 11/20/2015] [Accepted: 12/03/2015] [Indexed: 12/25/2022]
Affiliation(s)
- Matthew G. Petroff
- Process Development and Engineering; Merck & Co. Inc.; Kenilworth New Jersey 07033
| | - Haiying Bao
- Process Development and Engineering; Merck & Co. Inc.; Kenilworth New Jersey 07033
| | - John P. Welsh
- Process Development and Engineering; Merck & Co. Inc.; Kenilworth New Jersey 07033
| | | | - Jennifer M. Pollard
- Process Development and Engineering; Merck & Co. Inc.; Kenilworth New Jersey 07033
| | - David J. Roush
- Process Development and Engineering; Merck & Co. Inc.; Kenilworth New Jersey 07033
| | - Sunitha Kandula
- Process Development and Engineering; Merck & Co. Inc.; Kenilworth New Jersey 07033
| | | | - Nihal Tugcu
- Process Development and Engineering; Merck & Co. Inc.; Kenilworth New Jersey 07033
| | - Thomas O. Linden
- Process Development and Engineering; Merck & Co. Inc.; Kenilworth New Jersey 07033
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25
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Brenac Brochier V, Ravault V. High throughput development of a non protein A monoclonal antibody purification process using mini-columns and bio-layer interferometry. Eng Life Sci 2015. [DOI: 10.1002/elsc.201400244] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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26
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Welsh JP, Bao H, Barlow K, Pollard JM, Brekkan E, Lacki KM, Linden TO, Roush DJ. High-throughput techniques to evaluate the effect of ligand density for impurity separations with multimodal cation exchange resins. Eng Life Sci 2015. [DOI: 10.1002/elsc.201400251] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Affiliation(s)
- John P. Welsh
- Process Development and Engineering; Merck & Co., Inc; Kenilworth NJ USA
| | - Haiying Bao
- Process Development and Engineering; Merck & Co., Inc; Kenilworth NJ USA
| | - Kenneth Barlow
- Process Development and Engineering; Merck & Co., Inc; Kenilworth NJ USA
| | | | | | | | - Thomas O. Linden
- Process Development and Engineering; Merck & Co., Inc; Kenilworth NJ USA
| | - David J. Roush
- Process Development and Engineering; Merck & Co., Inc; Kenilworth NJ USA
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27
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Use of MiniColumns for linear isotherm parameter estimation and prediction of benchtop column performance. J Chromatogr A 2015; 1418:94-102. [DOI: 10.1016/j.chroma.2015.09.038] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Revised: 09/09/2015] [Accepted: 09/14/2015] [Indexed: 11/19/2022]
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28
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Welsh JP, Rauscher MA, Bao H, Meissner S, Han I, Linden TO, Pollard JM. Domain antibody downstream process optimization: High-throughput strategy and analytical methods. Eng Life Sci 2015. [DOI: 10.1002/elsc.201400255] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- John P. Welsh
- Process Development and Engineering; Merck & Co. Inc; Kenilworth NJ 07033 USA
| | - Michael A. Rauscher
- Process Development and Engineering; Merck & Co. Inc; Kenilworth NJ 07033 USA
| | - Haiying Bao
- Process Development and Engineering; Merck & Co. Inc; Kenilworth NJ 07033 USA
| | - Sandra Meissner
- Process Development and Engineering; Merck & Co. Inc; Kenilworth NJ 07033 USA
| | - InKwan Han
- Process Development and Engineering; Merck & Co. Inc; Kenilworth NJ 07033 USA
| | - Thomas O. Linden
- Process Development and Engineering; Merck & Co. Inc; Kenilworth NJ 07033 USA
| | - Jennifer M. Pollard
- Process Development and Engineering; Merck & Co. Inc; Kenilworth NJ 07033 USA
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29
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Integrated development of up- and downstream processes supported by the Cherry-Tag™ for real-time tracking of stability and solubility of proteins. J Biotechnol 2015; 200:27-37. [DOI: 10.1016/j.jbiotec.2015.02.024] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Revised: 01/12/2015] [Accepted: 02/17/2015] [Indexed: 11/22/2022]
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30
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Nestola P, Peixoto C, Silva RRJS, Alves PM, Mota JPB, Carrondo MJT. Improved virus purification processes for vaccines and gene therapy. Biotechnol Bioeng 2015; 112:843-57. [PMID: 25677990 DOI: 10.1002/bit.25545] [Citation(s) in RCA: 88] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Revised: 01/05/2015] [Accepted: 01/13/2015] [Indexed: 01/10/2023]
Abstract
The downstream processing of virus particles for vaccination or gene therapy is becoming a critical bottleneck as upstream titers keep improving. Moreover, the growing pressure to develop cost-efficient processes has brought forward new downstream trains. This review aims at analyzing the state-of-the-art in viral downstream purification processes, encompassing the classical unit operations and their recent developments. Emphasis is given to novel strategies for process intensification, such as continuous or semi-continuous systems based on multicolumn technology, opening up process efficiency. Process understanding in the light of the pharmaceutical quality by design (QbD) initiative is also discussed. Finally, an outlook of the upcoming breakthrough technologies is presented.
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Affiliation(s)
- Piergiuseppe Nestola
- Instituto de Biologia Experimental e Tecnológica, Apartado 12, 2781-901, Oeiras, Portugal; Instituto de Tecnologia Química e Biológica, Universidade Nova de Lisboa, 2780-157, Oeiras, Portugal
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31
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Pushing the limits of high-throughput chromatography process development: current state and future directions. ACTA ACUST UNITED AC 2015. [DOI: 10.4155/pbp.14.40] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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32
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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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33
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34
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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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35
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Welsh JP, Petroff MG, Rowicki P, Bao H, Linden T, Roush DJ, Pollard JM. A practical strategy for using miniature chromatography columns in a standardized high-throughput workflow for purification development of monoclonal antibodies. Biotechnol Prog 2014; 30:626-35. [DOI: 10.1002/btpr.1905] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2013] [Revised: 03/05/2014] [Indexed: 11/07/2022]
Affiliation(s)
- John P. Welsh
- Process Development and Engineering; Merck & Co. Inc.; Kenilworth NJ 07033
| | - Matthew G. Petroff
- Process Development and Engineering; Merck & Co. Inc.; Kenilworth NJ 07033
| | - Patricia Rowicki
- Process Development and Engineering; Merck & Co. Inc.; Kenilworth NJ 07033
| | - Haiying Bao
- Process Development and Engineering; Merck & Co. Inc.; Kenilworth NJ 07033
| | - Thomas Linden
- Process Development and Engineering; Merck & Co. Inc.; Kenilworth NJ 07033
| | - David J. Roush
- Process Development and Engineering; Merck & Co. Inc.; Kenilworth NJ 07033
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36
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A high-throughput 2D-analytical technique to obtain single protein parameters from complex cell lysates for in silico process development of ion exchange chromatography. J Chromatogr A 2013; 1318:84-91. [DOI: 10.1016/j.chroma.2013.09.043] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2013] [Revised: 09/09/2013] [Accepted: 09/12/2013] [Indexed: 11/16/2022]
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37
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Yoshimoto N, Minakuchi K, Itoh D, Isakari Y, Yamamoto S. High-throughput process development methods for chromatography and precipitation of proteins: Advantages and precautions. Eng Life Sci 2013. [DOI: 10.1002/elsc.201200121] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Affiliation(s)
- Noriko Yoshimoto
- Bioprocess Engineering Laboratory, School of Engineering and Graduate School of Medicine; Yamaguchi University; Ube Japan
| | - Kazunobu Minakuchi
- Bioprocess Engineering Laboratory, School of Engineering and Graduate School of Medicine; Yamaguchi University; Ube Japan
| | - Daisuke Itoh
- Bioprocess Engineering Laboratory, School of Engineering and Graduate School of Medicine; Yamaguchi University; Ube Japan
| | - Yu Isakari
- Bioprocess Engineering Laboratory, School of Engineering and Graduate School of Medicine; Yamaguchi University; Ube Japan
| | - Shuichi Yamamoto
- Bioprocess Engineering Laboratory, School of Engineering and Graduate School of Medicine; Yamaguchi University; Ube Japan
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38
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Neubauer P, Cruz N, Glauche F, Junne S, Knepper A, Raven M. Consistent development of bioprocesses from microliter cultures to the industrial scale. Eng Life Sci 2013. [DOI: 10.1002/elsc.201200021] [Citation(s) in RCA: 82] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Affiliation(s)
- Peter Neubauer
- Bioprocess Engineering, Department of Biotechnology; Technische Universität Berlin; Berlin; Germany
| | - Nicolas Cruz
- Bioprocess Engineering, Department of Biotechnology; Technische Universität Berlin; Berlin; Germany
| | - Florian Glauche
- Bioprocess Engineering, Department of Biotechnology; Technische Universität Berlin; Berlin; Germany
| | - Stefan Junne
- Bioprocess Engineering, Department of Biotechnology; Technische Universität Berlin; Berlin; Germany
| | - Andreas Knepper
- Bioprocess Engineering, Department of Biotechnology; Technische Universität Berlin; Berlin; Germany
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39
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Dismer F, Hansen S, Oelmeier SA, Hubbuch J. Accurate retention time determination of co-eluting proteins in analytical chromatography by means of spectral data. Biotechnol Bioeng 2012; 110:683-93. [PMID: 23042430 DOI: 10.1002/bit.24738] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2012] [Revised: 09/14/2012] [Accepted: 09/26/2012] [Indexed: 11/12/2022]
Abstract
Chromatography is the method of choice for the separation of proteins, at both analytical and preparative scale. Orthogonal purification strategies for industrial use can easily be implemented by combining different modes of adsorption. Nevertheless, with flexibility comes the freedom of choice and optimal conditions for consecutive steps need to be identified in a robust and reproducible fashion. One way to address this issue is the use of mathematical models that allow for an in silico process optimization. Although this has been shown to work, model parameter estimation for complex feedstocks becomes the bottleneck in process development. An integral part of parameter assessment is the accurate measurement of retention times in a series of isocratic or gradient elution experiments. As high-resolution analytics that can differentiate between proteins are often not readily available, pure protein is mandatory for parameter determination. In this work, we present an approach that has the potential to solve this problem. Based on the uniqueness of UV absorption spectra of proteins, we were able to accurately measure retention times in systems of up to four co-eluting compounds. The presented approach is calibration-free, meaning that prior knowledge of pure component absorption spectra is not required. Actually, pure protein spectra can be determined from co-eluting proteins as part of the methodology. The approach was tested for size-exclusion chromatograms of 38 mixtures of co-eluting proteins. Retention times were determined with an average error of 0.6 s (1.6% of average peak width), approximated and measured pure component spectra showed an average coefficient of correlation of 0.992.
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Affiliation(s)
- Florian Dismer
- Chair for Biomolecular Separation Engineering, Institute of Engineering in Life Sciences, Karlsruhe Institute of Technology, Karlsruhe, Germany.
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