301
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Rayat AC, Lye GJ, Micheletti M. A novel microscale crossflow device for the rapid evaluation of microfiltration processes. J Memb Sci 2014. [DOI: 10.1016/j.memsci.2013.10.046] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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302
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Bork C, Holdridge S, Walter M, Fallon E, Pohlscheidt M. Online integrity monitoring in the protein A step of mAb production processes-increasing reliability and process robustness. Biotechnol Prog 2014; 30:383-90. [PMID: 24376144 DOI: 10.1002/btpr.1849] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2013] [Revised: 12/08/2013] [Indexed: 11/11/2022]
Abstract
The purification of recombinant proteins and antibodies using large packed-bed columns is a key component in most biotechnology purification processes. Because of its efficiency and established practice in the industry, column chromatography is a state of the art technology with a proven capability for removal of impurities, viral clearance, and process efficiency. In general, the validation and monitoring of chromatographic operations-especially of critical process parameters-is required to ensure robust product quality and compliance with health authority expectations. One key aspect of chromatography that needs to be monitored is the integrity of the packed bed, since this is often critical to achieving sufficient separation of protein species. Identification of potential column integrity issues before they occur is important for both product quality and economic efficiency. In this article, we examine how transition analysis techniques can be utilized to monitor column integrity. A case study on the application of this method during a large scale Protein A capture step in an antibody purification process shows how it can assist with improving process knowledge and increasing the efficiency of manufacturing operations.
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Affiliation(s)
- Christopher Bork
- Science and Engineering, Genentech Inc., 1 Antibody Way, Oceanside, CA, 92056
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303
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Müller-Späth T, Morbidelli M. Purification of human monoclonal antibodies and their fragments. Methods Mol Biol 2014; 1060:331-351. [PMID: 24037849 DOI: 10.1007/978-1-62703-586-6_17] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
This chapter summarizes the most common chromatographic mAb and mAb fragment purification methods, starting by elucidating the relevant properties of the compounds and introducing the various chromatography modes that are available and useful for this application. A focus is put on the capture step affinity and ion exchange chromatography. Aspects of scalability play an important role in judging the suitability of the methods. The chapter introduces also analytical chromatographic methods that can be utilized for quantification and purity control of the product. In the case of mAbs, for most purposes the purity obtained using an affinity capture step is sufficient. Polishing steps are required if material of particularly high purity needs to be generated. For mAb fragments, affinity chromatography is not yet fully established, and the capture step potentially may not provide material of high purity. Therefore, the available polishing techniques are touched upon briefly. In the case of mAb isoform and bispecific antibody purification, countercurrent chromatography techniques have been proven to be very useful and a part of this chapter has been dedicated to them, paying tribute to the rising interest in these antibody formats in research and industry.
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304
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Poma A, Guerreiro A, Caygill S, Moczko E, Piletsky S. Automatic reactor for solid-phase synthesis of molecularly imprinted polymeric nanoparticles (MIP NPs) in water. RSC Adv 2014; 4:4203-4206. [PMID: 26722622 DOI: 10.1039/c3ra46838k] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
We report the development of an automated chemical reactor for solid-phase synthesis of MIP NPs in water. Operational parameters are under computer control, requiring minimal operator intervention. In this study, "ready for use" MIP NPs with sub-nanomolar affinity are prepared against pepsin A, trypsin and α-amylase in only 4 hours.
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Affiliation(s)
- Alessandro Poma
- Cranfield Health, Cranfield University, Cranfield, MK43 0AL, United Kingdom
| | - Antonio Guerreiro
- Cranfield Health, Cranfield University, Cranfield, MK43 0AL, United Kingdom
| | - Sarah Caygill
- Cranfield Health, Cranfield University, Cranfield, MK43 0AL, United Kingdom
| | - Ewa Moczko
- Cranfield Health, Cranfield University, Cranfield, MK43 0AL, United Kingdom
| | - Sergey Piletsky
- Cranfield Health, Cranfield University, Cranfield, MK43 0AL, United Kingdom
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305
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Implementing high-temperature short-time media treatment in commercial-scale cell culture manufacturing processes. Appl Microbiol Biotechnol 2013; 98:2965-71. [DOI: 10.1007/s00253-013-5451-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Revised: 11/26/2013] [Accepted: 12/02/2013] [Indexed: 10/25/2022]
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306
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Levy NE, Valente KN, Choe LH, Lee KH, Lenhoff AM. Identification and characterization of host cell protein product-associated impurities in monoclonal antibody bioprocessing. Biotechnol Bioeng 2013; 111:904-12. [PMID: 24254318 DOI: 10.1002/bit.25158] [Citation(s) in RCA: 131] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2013] [Revised: 11/06/2013] [Accepted: 11/13/2013] [Indexed: 12/14/2022]
Abstract
Downstream processing of monoclonal antibodies (mAbs) has evolved to allow the specific process for a new product to be developed largely by empirical specialization of a platform process that enables removal of impurities of different kinds. A more complete characterization of impurities and the product itself would provide insights into the rational design of efficient downstream processes. This work identifies and characterizes host cell protein (HCP) product-associated impurities, that is, HCP species carried through the downstream processes via direct interactions with the mAb. Interactions between HCPs and mAbs are characterized using cross-interaction chromatography under solution conditions typical of those used in downstream processing. The interacting species are then identified by two-dimensional gel electrophoresis and mass spectrometry. This methodology has been applied to identify product-associated impurities in one particular purification step, namely protein A affinity chromatography, for four therapeutic mAbs as well as the Fab and Fc domains of one of these mAbs. The results show both the differences in HCP-mAb interactions among different mAbs, and the relative importance of product association compared to co-elution in protein A affinity chromatography.
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Affiliation(s)
- Nicholas E Levy
- Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, Delaware, 19716
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307
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Kaisermayer C, Yang J. Highly efficient inoculum propagation in perfusion culture using WAVE Bioreactor™ systems. BMC Proc 2013. [PMCID: PMC3980772 DOI: 10.1186/1753-6561-7-s6-p7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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308
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The hidden potential of small synthetic molecules and peptides as affinity ligands for bioseparations. ACTA ACUST UNITED AC 2013. [DOI: 10.4155/pbp.13.54] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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309
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Cation exchange versus multimodal cation exchange resins for antibody capture from CHO supernatants: Identification of contaminating Host Cell Proteins by mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2013; 942-943:126-33. [DOI: 10.1016/j.jchromb.2013.10.033] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2013] [Revised: 09/23/2013] [Accepted: 10/20/2013] [Indexed: 12/26/2022]
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310
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Development of a fed-batch cultivation for antibody-producing cells based on combined feeding strategy of glucose and galactose. Biochem Eng J 2013. [DOI: 10.1016/j.bej.2013.10.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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311
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Durán LVR, Spelzini D, Boeris V, Aguilar CN, Picó GA. Interaction of tannase from Aspergillus niger with polycations applied to its primary recovery. Colloids Surf B Biointerfaces 2013; 110:480-4. [PMID: 23706551 DOI: 10.1016/j.colsurfb.2013.04.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2012] [Revised: 04/18/2013] [Accepted: 04/22/2013] [Indexed: 01/09/2023]
Abstract
The interaction of tannase (TAH) with chitosan, polyethyleneimine and Eudragit(®)E100 was studied. It was found that TAH selectively binds to these polycations (PC), probably due to the acid nature of the target protein. TAH could interact with these PC depending on the medium conditions. The effect of the interaction on the secondary and tertiary structure of TAH was assayed through circular dichroism and fluorescence spectroscopy. TAH was recovered from Aspergillus niger culture broth by means of precipitation and adsorption using chitosan.
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Affiliation(s)
- Luis V Rodríguez Durán
- Food Research Department, School of Chemistry, Universidad Autónoma de Coahuila, Blvd. Venustiano Carranza and J. Cárdenas s/n, ZIP 25280, Saltillo, Coahuila, Mexico
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312
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Wang RZ, Lin DQ, Tong HF, Lu HL, Yao SJ. Evaluation of mixed-mode chromatographic resins for separating IgG from serum albumin containing feedstock. J Chromatogr B Analyt Technol Biomed Life Sci 2013; 936:33-41. [DOI: 10.1016/j.jchromb.2013.07.029] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2013] [Revised: 07/23/2013] [Accepted: 07/31/2013] [Indexed: 10/26/2022]
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313
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Abstract
Fermentation, a process traditionally known for the anaerobic conversion of sugar to carbon dioxide and alcohol by yeast, now refers to an industrial process of manufacturing a wide variety of metabolites and biomaterials by using microorganisms or mammalian cells in a controlled culture environment. Fermentation can be performed in batch mode, continuous mode or in a combinatory, fed-batch mode, depending on the product of interest. Fermentation technology has long been known for the production of various medically important products such as antibiotics, solvents such as ethanol, intermediary compounds such as citric acid, probiotics such as yoghurt etc. New generation fermentation products include anti-viral drugs, therapeutic recombinant proteins and DNA, and monoclonal antibodies. Apart from the drugs, fermentation is also used for the commercial production of materials required for the development of diagnostic kits, drug delivery vehicles and medical devices. Fermentation technology remains at the heart of rapidly growing biopharmaceutical industry today, which is expected to expand even more in the days ahead, in parallel with the progress in novel, targeted drug discovery.
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314
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Gramer MJ, van den Bremer ETJ, van Kampen MD, Kundu A, Kopfmann P, Etter E, Stinehelfer D, Long J, Lannom T, Noordergraaf EH, Gerritsen J, Labrijn AF, Schuurman J, van Berkel PHC, Parren PWHI. Production of stable bispecific IgG1 by controlled Fab-arm exchange: scalability from bench to large-scale manufacturing by application of standard approaches. MAbs 2013; 5:962-73. [PMID: 23995617 PMCID: PMC3896610 DOI: 10.4161/mabs.26233] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
The manufacturing of bispecific antibodies can be challenging for a variety of reasons. For example, protein expression problems, stability issues, or the use of non-standard approaches for manufacturing can result in poor yield or poor facility fit. In this paper, we demonstrate the use of standard antibody platforms for large-scale manufacturing of bispecific IgG1 by controlled Fab-arm exchange. Two parental antibodies that each contain a single matched point mutation in the CH3 region were separately expressed in Chinese hamster ovary cells and manufactured at 1000 L scale using a platform fed-batch and purification process that was designed for standard antibody production. The bispecific antibody was generated by mixing the two parental molecules under controlled reducing conditions, resulting in efficient Fab-arm exchange of >95% at kg scale. The reductant was removed via diafiltration, resulting in spontaneous reoxidation of interchain disulfide bonds. Aside from the bispecific nature of the molecule, extensive characterization demonstrated that the IgG1 structural integrity was maintained, including function and stability. These results demonstrate the suitability of this bispecific IgG1 format for commercial-scale manufacturing using standard antibody manufacturing techniques.
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315
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316
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Hebel D, Huber S, Stanislawski B, Hekmat D. Stirred batch crystallization of a therapeutic antibody fragment. J Biotechnol 2013; 166:206-11. [DOI: 10.1016/j.jbiotec.2013.05.010] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2013] [Revised: 05/22/2013] [Accepted: 05/24/2013] [Indexed: 11/29/2022]
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317
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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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318
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319
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Shamashkin M, Godavarti R, Iskra T, Coffman J. A tandem laboratory scale protein purification process using Protein A affinity and anion exchange chromatography operated in a weak partitioning mode. Biotechnol Bioeng 2013; 110:2655-63. [DOI: 10.1002/bit.24955] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2013] [Revised: 04/14/2013] [Accepted: 04/26/2013] [Indexed: 11/05/2022]
Affiliation(s)
- Michael Shamashkin
- Centers for Therapeutic Innovation; Pfizer, Inc.; Boston; Massachusetts; 02115
| | - Ranga Godavarti
- Pfizer Global Biologics; Pfizer, Inc.; Andover; Massachusetts
| | - Timothy Iskra
- Pfizer Global Biologics; Pfizer, Inc.; Andover; Massachusetts
| | - Jon Coffman
- Boehringer Ingelheim Fremont, Inc.; Fremont; California
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320
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Hilal-Alnaqbi A, Hu AYC, Zhang Z, Al-Rubeai M. Growth, metabolic activity, and productivity of immobilized and freely suspended CHO cells in perfusion culture. Biotechnol Appl Biochem 2013; 60:436-45. [PMID: 23701045 DOI: 10.1002/bab.1103] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2012] [Accepted: 01/24/2013] [Indexed: 11/09/2022]
Abstract
Chinese hamster ovary (CHO) cells producing β-galactosidase (β-gal) were successfully cultured on silicone-based porous microcarriers (ImmobaSil FS) in a 1 L stirred-tank perfusion bioreactor. We studied the growth, metabolism, and productivity of free and immobilized cells to understand cellular activity in immobilized conditions. CHO cells attached to ImmobaSil FS significantly better than to other microcarriers. Scanning electron microscope images showed that the CHO cells thoroughly colonized the porous surfaces of the ImmobaSil FS, exhibiting a spherical morphology with microvilli that extended to anchorage cells on the silicone surface. In perfusion culture, the concentration of the attached cells reached 8 × 10(8) cells/mL of carrier, whereas those that remained freely suspended reached 2 × 10(7) cells/mL medium. The β-gal concentration reached more than 5 unit/mL in perfusion culture, more than fivefold that of batch culture. The maximum concentration per microcarrier was proportional to the initial cell density. The specific growth rate, the specific β-gal production rate, the percentage of S phase, and the oxygen uptake rate were all relatively lower for immobilized cells than freely suspended cells in the same bioreactor, indicating that not only do cells survive and grow to a greater extent in a free suspension state, but they are also metabolically more active than viable cells inside the pores of the microcarriers.
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Affiliation(s)
- Ali Hilal-Alnaqbi
- School of Chemical & Bioprocess Engineering, University College Dublin, Belfield, Dublin, Ireland; Faculty of Engineering, UAE University, Al Ain, United Arab Emirates
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321
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Krättli M, Müller‐Späth T, Morbidelli M. multifraction separation in countercurrent chromatography (MCSGP). Biotechnol Bioeng 2013; 110:2436-44. [DOI: 10.1002/bit.24901] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2012] [Revised: 03/05/2013] [Accepted: 03/08/2013] [Indexed: 02/02/2023]
Affiliation(s)
- Martin Krättli
- Institute for Chemical and BioengineeringETH ZurichWolfgang‐Pauli‐Str. 10/HCI F 129, CH‐8093 ZurichSwitzerland
| | - Thomas Müller‐Späth
- Institute for Chemical and BioengineeringETH ZurichWolfgang‐Pauli‐Str. 10/HCI F 129, CH‐8093 ZurichSwitzerland
- ChromaCon AGTechnoparkstrasse 1, CH‐8005 ZurichSwitzerland
| | - Massimo Morbidelli
- Institute for Chemical and BioengineeringETH ZurichWolfgang‐Pauli‐Str. 10/HCI F 129, CH‐8093 ZurichSwitzerland
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322
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Lanza AM, Kim DS, Alper HS. Evaluating the influence of selection markers on obtaining selected pools and stable cell lines in human cells. Biotechnol J 2013; 8:811-21. [PMID: 23450727 DOI: 10.1002/biot.201200364] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2012] [Revised: 01/29/2013] [Accepted: 02/28/2013] [Indexed: 12/14/2022]
Abstract
Selection markers are common genetic elements used in recombinant cell line development. While several selection systems exist for use in mammalian cell lines, no previous study has comprehensively evaluated their performance in the isolation of recombinant populations and cell lines. Here we examine four antibiotics, hygromycin B, neomycin, puromycin, and Zeocin™, and their corresponding selector genes, using a green fluorescent protein (GFP) as a reporter in two model cell lines, HT1080 and HEK293. We identify Zeocin™ as the best selection agent for cell line development in human cells. In comparison to the other selection systems, Zeocin™ is able to identify populations with higher fluorescence levels, which in turn leads to the isolation of better clonal populations and less false positives. Furthermore, Zeocin™-resistant populations exhibit better transgene stability in the absence of selection pressure compared to other selection agents. All isolated Zeocin™-resistant clones, regardless of cell type, exhibited GFP expression. By comparison, only 79% of hygromycin B-resistant, 47% of neomycin-resistant, and 14% of puromycin-resistant clones expressed GFP. Based on these results, we rank Zeocin™ > hygromycin B ∼ puromycin > neomycin for cell line development in human cells. Furthermore, this study demonstrates that selection marker choice does indeed impact cell line development.
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Affiliation(s)
- Amanda M Lanza
- Department of Chemical Engineering, The University of Texas at Austin, Austin, Texas, USA
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323
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Kamga MH, Woo Lee H, Liu J, Yoon S. Quantification of protein mixture in chromatographic separation using multi-wavelength UV spectra. Biotechnol Prog 2013; 29:664-71. [DOI: 10.1002/btpr.1712] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2012] [Revised: 02/01/2013] [Indexed: 11/06/2022]
Affiliation(s)
- Mark-Henry Kamga
- Dept. of Chemical Engineering; University of Massachusetts Lowell; MA 01854
| | - Hae Woo Lee
- Dept. of Chemical Engineering; University of Massachusetts Lowell; MA 01854
| | - Jay Liu
- Dept. of Chemical Engineering; Pukyung National University; Busan Nam-Gu Korea
| | - Seongkyu Yoon
- Dept. of Chemical Engineering; University of Massachusetts Lowell; MA 01854
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324
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Bork C, Ng K, Liu Y, Yee A, Pohlscheidt M. Chromatographic peak alignment using derivative dynamic time warping. Biotechnol Prog 2013; 29:394-402. [DOI: 10.1002/btpr.1680] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2012] [Revised: 10/09/2012] [Indexed: 11/09/2022]
Affiliation(s)
- Christopher Bork
- Manufacturing Science and Technology; Genentech, Inc.; 1 Antibody Way Oceanside CA 92056
| | - Kenneth Ng
- Manufacturing Science and Technology; Genentech, Inc.; 1 Antibody Way Oceanside CA 92056
| | - Yinhan Liu
- Dept. of Chemical Engineering; University of Minnesota; Twin Cities, 100 Church St. SE Minneapolis MN 55455
| | - Alex Yee
- Dept. of Bioengineering; Stanford University; 318 Campus Dr. Stanford CA 94304
| | - Michael Pohlscheidt
- Manufacturing Science and Technology; Genentech, Inc.; 1 Antibody Way Oceanside CA 92056
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325
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Lau EC, Kong S, McNulty S, Entwisle C, Mcilgorm A, Dalton KA, Hoare M. An ultra scale-down characterization of low shear stress primary recovery stages to enhance selectivity of fusion protein recovery from its molecular variants. Biotechnol Bioeng 2013; 110:1973-83. [DOI: 10.1002/bit.24865] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2012] [Revised: 01/23/2013] [Accepted: 02/05/2013] [Indexed: 11/12/2022]
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326
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Tscheliessnig AL, Konrath J, Bates R, Jungbauer A. Host cell protein analysis in therapeutic protein bioprocessing - methods and applications. Biotechnol J 2013; 8:655-70. [DOI: 10.1002/biot.201200018] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2012] [Revised: 11/22/2012] [Accepted: 01/04/2013] [Indexed: 01/18/2023]
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327
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Yi Y, Zhu L, Mei J, Chen J, Ying G. IgG purification using affinity filtration with sulfamethazine-affinity carriers. Prep Biochem Biotechnol 2013; 42:598-610. [PMID: 23030470 DOI: 10.1080/10826068.2012.673529] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Immunoglobulin G (IgG) antibodies are used extensively for analytical, diagnostic, and therapeutic applications. However, there are some disadvantages to purify IgG antibodies by protein A and G affinity chromatography. Therefore, it is necessary to find an effective alternative and nonchromatographic method to purify IgG. Dextran microparticles were activated and coupled with sulfamethazine to form sulfamethazine-affinity carriers. Then the carriers were used to purify IgG by affinity filtration. Quantitative and qualitative determination proved that sulfamethazine would successfully bond to the surface of dextran microparticles with a density of 85.5 μmol/g (wet). Affinity carriers were proved to withstand high shear force and reveal rare sulfamethazine leakage under filtration conditions between pH 3 to 11. The maximum IgG-binding capacity of affinity carriers was 8.03 mg IgG/g (wet). The affinity filtration process obtained a recovery yield above 80% and purity above 90%. Thus, this work involved in both the advantages of membrane filtration and affinity purification. The results, for the first time, proved that it is possible to use the small ligand sulfamethazine for affinity filtration of IgG. It is an attractive alternative to conventional protein A or G affinity chromatography.
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Affiliation(s)
- Yu Yi
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
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328
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Nfor BK, Ahamed T, van Dedem GW, Verhaert PD, van der Wielen LA, Eppink MH, van de Sandt EJ, Ottens M. Model-based rational methodology for protein purification process synthesis. Chem Eng Sci 2013. [DOI: 10.1016/j.ces.2012.11.034] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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329
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Evaluation of immunoglobulin adsorption on the hydrophobic charge-induction resins with different ligand densities and pore sizes. J Chromatogr A 2013; 1278:61-8. [DOI: 10.1016/j.chroma.2012.12.054] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2012] [Revised: 12/18/2012] [Accepted: 12/20/2012] [Indexed: 11/24/2022]
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330
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Secretory production of single-chain antibody (scFv) in Brevibacillus choshinensis using novel fusion partner. Appl Microbiol Biotechnol 2013; 97:8569-80. [DOI: 10.1007/s00253-013-4695-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2012] [Revised: 12/28/2012] [Accepted: 01/03/2013] [Indexed: 11/26/2022]
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331
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Pohlscheidt M, Jacobs M, Wolf S, Thiele J, Jockwer A, Gabelsberger J, Jenzsch M, Tebbe H, Burg J. Optimizing capacity utilization by large scale 3000 L perfusion in seed train bioreactors. Biotechnol Prog 2013; 29:222-9. [DOI: 10.1002/btpr.1672] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2012] [Revised: 11/20/2012] [Indexed: 11/07/2022]
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332
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Tutykhina IL, Sedova ES, Gribova IY, Ivanova TI, Vasilev LA, Rutovskaya MV, Lysenko AA, Shmarov MM, Logunov DY, Naroditsky BS, Tillib SV, Gintsburg AL. Passive immunization with a recombinant adenovirus expressing an HA (H5)-specific single-domain antibody protects mice from lethal influenza infection. Antiviral Res 2012; 97:318-28. [PMID: 23274786 DOI: 10.1016/j.antiviral.2012.12.021] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2012] [Revised: 12/03/2012] [Accepted: 12/12/2012] [Indexed: 01/05/2023]
Abstract
One effective method for the prevention and treatment of influenza infection is passive immunization. In our study, we examined the feasibility of creating an antibody-based preparation with a prolonged protective effect against influenza virus. Single-domain antibodies (sdAbs) specific for influenza virus hemagglutinin were generated. Experiments in mouse models showed 100% survivability for both intranasal sdAbs administration 24h prior to influenza challenge and 24h after infection. sdAb-gene delivery by an adenoviral vector led to gene expression for up to 14days. Protection by a recombinant adenovirus containing the sdAb gene was observed in cases of administration prior to influenza infection (14d-24h). We also demonstrated that the single administration of a combined preparation containing sdAb DNA and protein expanded the protection time window from 14d prior to 48h after influenza infection. This approach and the application of a broad-spectrum sdAbs will allow the development of efficient drugs for the prevention and treatment of viral infections produced by pandemic virus variants and other infections.
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Affiliation(s)
- Irina L Tutykhina
- Gamaleya Research Institute for Epidemiology and Microbiology, 18, Gamaleya Street, Moscow 123098, Russia
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333
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Calo-Fernández B, Martínez-Hurtado JL. Biosimilars: company strategies to capture value from the biologics market. Pharmaceuticals (Basel) 2012; 5:1393-408. [PMID: 24281342 PMCID: PMC3816668 DOI: 10.3390/ph5121393] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2012] [Revised: 12/05/2012] [Accepted: 12/06/2012] [Indexed: 12/18/2022] Open
Abstract
Patents for several biologic blockbusters will expire in the next few years. The arrival of biosimilars, the biologic equivalent of chemical generics, will have an impact on the current biopharmaceuticals market. Five core capabilities have been identified as paramount for those companies aiming to enter the biosimilars market: research and development, manufacturing, supporting activities, marketing, and lobbying. Understanding the importance of each of these capabilities will be key to maximising the value generated from the biologics patent cliff.
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Affiliation(s)
- Bruno Calo-Fernández
- Escuela Técnica Superior de Ingeniería, Universidad de Santiago de Compostela, Rúa Lope Gómez de Marzoa s/n, Campus Vida 15782, Santiago de Compostela, Spain
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334
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Simaria AS, Turner R, Farid SS. A multi-level meta-heuristic algorithm for the optimisation of antibody purification processes. Biochem Eng J 2012. [DOI: 10.1016/j.bej.2012.08.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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335
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Shukla AA, Gottschalk U. Single-use disposable technologies for biopharmaceutical manufacturing. Trends Biotechnol 2012. [PMID: 23178074 DOI: 10.1016/j.tibtech.2012.10.004] [Citation(s) in RCA: 141] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The manufacture of protein biopharmaceuticals is conducted under current good manufacturing practice (cGMP) and involves multiple unit operations for upstream production and downstream purification. Until recently, production facilities relied on the use of relatively inflexible, hard-piped equipment including large stainless steel bioreactors and tanks to hold product intermediates and buffers. However, there is an increasing trend towards the adoption of single-use technologies across the manufacturing process. Technical advances have now made an end-to-end single-use manufacturing facility possible, but several aspects of single-use technology require further improvement and are continually evolving. This article provides a perspective on the current state-of-the-art in single-use technologies and highlights trends that will improve performance and increase the market penetration of disposable manufacturing in the future.
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336
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Menegatti S, Hussain M, Naik AD, Carbonell RG, Rao BM. mRNA display selection and solid-phase synthesis of Fc-binding cyclic peptide affinity ligands. Biotechnol Bioeng 2012; 110:857-70. [DOI: 10.1002/bit.24760] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2012] [Revised: 10/09/2012] [Accepted: 10/12/2012] [Indexed: 12/25/2022]
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337
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Oleksiewicz MB, Nagy G, Nagy E. Anti-bacterial monoclonal antibodies: Back to the future? Arch Biochem Biophys 2012; 526:124-31. [DOI: 10.1016/j.abb.2012.06.001] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2012] [Revised: 06/01/2012] [Accepted: 06/02/2012] [Indexed: 01/08/2023]
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338
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Identification and quantification of host cell protein impurities in biotherapeutics using mass spectrometry. Anal Biochem 2012; 428:150-7. [DOI: 10.1016/j.ab.2012.05.018] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2012] [Revised: 05/18/2012] [Accepted: 05/18/2012] [Indexed: 01/07/2023]
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339
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Refolding Technology for scFv Using a New Detergent, N-Lauroyl-L-glutamate and Arginine. Antibodies (Basel) 2012. [DOI: 10.3390/antib1020215] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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340
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Muzard J, Platt M, Lee GU. M13 bacteriophage-activated superparamagnetic beads for affinity separation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2012; 8:2403-2411. [PMID: 22619210 DOI: 10.1002/smll.201200099] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2012] [Revised: 03/13/2012] [Indexed: 06/01/2023]
Abstract
The growth of the biopharmaceutical industry has created a demand for new technologies for the purification of genetically engineered proteins.The efficiency of large-scale, high-gradient magnetic fishing could be improved if magnetic particles offering higher binding capacity and magnetization were available. This article describes several strategies for synthesizing microbeads that are composed of a M13 bacteriophage layer assembled on a superparamagnetic core. Chemical cross-linking of the pVIII proteins to a carboxyl-functionalized bead produces highly responsive superparamagnetic particles (SPM) with a side-on oriented, adherent virus monolayer. Also, the genetic manipulation of the pIII proteins with a His(6) peptide sequence allows reversible assembly of the bacteriophage on a nitrilotriacetic-acid-functionalized core in an end-on configuration. These phage-magnetic particles are successfully used to separate antibodies from high-protein concentration solutions in a single step with a >90% purity. The dense magnetic core of these particles makes them five times more responsive to magnetic fields than commercial materials composed of polymer-(iron oxide) composites and a monolayer of phage could produce a 1000 fold higher antibody binding capacity. These new bionanomaterials appear to be well-suited to large-scale high-gradient magnetic fishing separation and promise to be cost effective as a result of the self-assembling and self-replicating properties of genetically engineered M13 bacteriophage.
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Affiliation(s)
- Julien Muzard
- UCD Centre for Nanomedicine, School of Chemistry & Chemical Biology - University, College Dublin Belfield, Dublin 4, Ireland
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341
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Hogwood CE, Tait AS, Koloteva-Levine N, Bracewell DG, Smales CM. The dynamics of the CHO host cell protein profile during clarification and protein A capture in a platform antibody purification process. Biotechnol Bioeng 2012; 110:240-51. [DOI: 10.1002/bit.24607] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2012] [Revised: 05/29/2012] [Accepted: 07/05/2012] [Indexed: 11/12/2022]
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342
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Borlido L, Azevedo A, Sousa A, Oliveira P, Roque A, Aires-Barros M. Fishing human monoclonal antibodies from a CHO cell supernatant with boronic acid magnetic particles. J Chromatogr B Analyt Technol Biomed Life Sci 2012; 903:163-70. [DOI: 10.1016/j.jchromb.2012.07.014] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2012] [Revised: 06/12/2012] [Accepted: 07/15/2012] [Indexed: 10/28/2022]
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343
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Tarrant RDR, Velez-Suberbie ML, Tait AS, Smales CM, Bracewell DG. Host cell protein adsorption characteristics during protein A chromatography. Biotechnol Prog 2012; 28:1037-44. [PMID: 22736545 DOI: 10.1002/btpr.1581] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2012] [Revised: 06/12/2012] [Indexed: 11/09/2022]
Abstract
Protein A chromatography is a critical and 'gold-standard' step in the purification of monoclonal antibody (mAb) products. Its ability to remove >98% of impurities in a single step alleviates the burden on subsequent process steps and facilitates the implementation of platform processes, with a minimal number of chromatographic steps. Here, we have evaluated four commercially available protein A chromatography matrices in terms of their ability to remove host cell proteins (HCPs), a complex group of process related impurities that must be removed to minimal levels. SELDI-TOF MS was used as a screening tool to generate an impurity profile fingerprint for each resin and indicated a number of residual impurities present following protein A chromatography, agreeing with HCP ELISA. Although many of these were observed for all matrices there was a significantly elevated level of impurity binding associated with the resin based on controlled pore glass under standard conditions. Use of null cell line supernatant with and without spiked purified mAb demonstrated the interaction of HCPs to be not only with the resin back-bone but also with the bound mAb. A null cell line column overload and sample enrichment method before 2D-PAGE was then used to determine individual components associated with resin back-bone adsorption. The methods shown allow for a critical analysis of HCP removal during protein A chromatography. Taken together they provide the necessary process understanding to allow process engineers to identify rational approaches for the removal of prominent HCPs.
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Affiliation(s)
- Richard D R Tarrant
- The Advanced Centre of Biochemical Engineering, Department of Biochemical Engineering, University College London, Torrington Place, London WC1E 7JE, UK
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344
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Zeck A, Regula JT, Larraillet V, Mautz B, Popp O, Göpfert U, Wiegeshoff F, Vollertsen UEE, Gorr IH, Koll H, Papadimitriou A. Low level sequence variant analysis of recombinant proteins: an optimized approach. PLoS One 2012; 7:e40328. [PMID: 22792284 PMCID: PMC3391300 DOI: 10.1371/journal.pone.0040328] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2012] [Accepted: 06/05/2012] [Indexed: 11/18/2022] Open
Abstract
Sequence variants in recombinant biopharmaceuticals may have a relevant and unpredictable impact on clinical safety and efficacy. Hence, their sensitive analysis is important throughout bioprocess development. The two stage analytical approach presented here provides a quick multi clone comparison of candidate production cell lines as a first stage, followed by an in-depth analysis including identification and quantitation of aberrant sequence variants of selected clones as a second stage. We show that the differential analysis is a suitable tool for sensitive and fast batch to batch comparison of recombinant proteins. The optimized approach allows for detection of not only single amino acid substitutions in unmodified peptides, but also substitutions in posttranslational modified peptides such as glycopeptides, for detection of truncated or elongated sequence variants as well as double amino acid substitutions or substitution with amino acid structural isomers within one peptide. In two case studies we were able to detect sequence variants of different origin down to a sub percentage level. One of the sequence variants (Thr → Asn) could be correlated to a cytosine to adenine substitution at DNA (desoxyribonucleic acid) level. In the second case we were able to correlate the sub percentage substitution (Phe → Tyr) to amino acid limitation in the chemically defined fermentation medium.
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Affiliation(s)
- Anne Zeck
- Biologics Research, Pharma Research and Early Development, Roche Diagnostics GmbH, Penzberg, Germany.
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345
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Nfor BK, Ahamed T, Pinkse MW, van der Wielen LA, Verhaert PD, van Dedem GW, Eppink MH, van de Sandt EJ, Ottens M. Multi-dimensional fractionation and characterization of crude protein mixtures: Toward establishment of a database of protein purification process development parameters. Biotechnol Bioeng 2012; 109:3070-83. [DOI: 10.1002/bit.24576] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2011] [Revised: 04/20/2012] [Accepted: 05/30/2012] [Indexed: 11/08/2022]
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346
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Kshirsagar R, McElearney K, Gilbert A, Sinacore M, Ryll T. Controlling trisulfide modification in recombinant monoclonal antibody produced in fed-batch cell culture. Biotechnol Bioeng 2012; 109:2523-32. [PMID: 22473825 DOI: 10.1002/bit.24511] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2011] [Revised: 02/03/2012] [Accepted: 03/19/2012] [Indexed: 12/18/2022]
Abstract
Molecular heterogeneity was detected in a recombinant monoclonal antibody (IgG1 mAb) due to the presence of a trisulfide linkage generated by the post-translational insertion of a sulfur atom into disulfide bonds at the heavy-heavy and heavy-light junctions. This molecular heterogeneity had no observable effect on antibody function. Nevertheless, to minimize the heterogeneity of the IgG1 mAb from run-to-run, an understanding of the impact of cell culture process conditions on trisulfide versus disulfide linkage formation was desirable. To investigate variables that might impact trisulfide formation, cell culture parameters were varied in bench-scale bioreactor studies. Trisulfide analysis of the samples from these runs revealed that the trisulfide content in the bond between heavy and light chains varied considerably from <1% to 39%. Optimizing the culture duration and feeding strategy resulted in more consistent trisulfide levels. Cysteine concentration in the feed medium had a direct correlation with the trisulfide level in the product. Systematic studies revealed that cysteine in the feed and the bioreactor media was contributing hydrogen sulfide which reacted with the IgG1 mAb in the supernatant leading to the insertion of sulfur atom and formation of a trisulfide bond. Cysteine feed strategies were developed to control the trisulfide modification in the recombinant monoclonal antibody.
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Affiliation(s)
- Rashmi Kshirsagar
- Cell Culture Development, Biogen Idec, 14 Cambridge Center, Cambridge, Massachusetts 02142, USA.
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347
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Mandenius CF, Björkman M. Scale-up of cell culture bioreactors using biomechatronic design. Biotechnol J 2012; 7:1026-39. [DOI: 10.1002/biot.201100463] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2011] [Revised: 02/19/2012] [Accepted: 03/01/2012] [Indexed: 01/23/2023]
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348
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Kadlecova Z, Nallet S, Hacker DL, Baldi L, Klok HA, Wurm FM. Poly(ethyleneimine)-mediated large-scale transient gene expression: influence of molecular weight, polydispersity and N-propionyl groups. Macromol Biosci 2012; 12:628-36. [PMID: 22411776 DOI: 10.1002/mabi.201100404] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2011] [Revised: 12/23/2011] [Indexed: 11/10/2022]
Abstract
Three synthesis lots of linear poly(ethyleneimine) (PEI) are compared to a fully hydrolyzed linear PEI (commercially available as PEI "Max") regarding structure, polyplex formation with plasmid DNA, and transfection of suspension-adapted HEK-293E cells. PEI "Max" binds DNA more efficiently than the other PEIs, but it is the least effective in terms of transient recombinant protein yield. One PEI lot is fractionated by means of SEC. The fractions of high-M(n) PEI are the most efficient for complex formation and transfection. Nevertheless, the highest transient recombinant protein yields are achieved with unfractionated PEI. The results demonstrate that the polydispersity and charge density of linear PEI are important parameters for gene delivery to suspension-adapted HEK-293E cells.
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Affiliation(s)
- Zuzana Kadlecova
- Laboratoire des Polymères, Institut des Matériaux et Institut des Sciences et Ingénieries Chimiques, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
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349
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Technology trends in antibody purification. J Chromatogr A 2012; 1221:57-70. [DOI: 10.1016/j.chroma.2011.10.034] [Citation(s) in RCA: 187] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2011] [Revised: 10/09/2011] [Accepted: 10/12/2011] [Indexed: 01/21/2023]
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350
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Tait A, Hogwood C, Smales C, Bracewell D. Host cell protein dynamics in the supernatant of a mAb producing CHO cell line. Biotechnol Bioeng 2011; 109:971-82. [DOI: 10.1002/bit.24383] [Citation(s) in RCA: 97] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2011] [Accepted: 11/14/2011] [Indexed: 11/06/2022]
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