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Dinter C, Gumprecht A, Menze MA, Azizan A, Niehoff PJ, Hansen S, Büchs J. Validation of computational fluid dynamics of shake flask experiments at moderate viscosity by liquid distributions and volumetric power inputs. Sci Rep 2024; 14:3658. [PMID: 38351095 PMCID: PMC10864319 DOI: 10.1038/s41598-024-53980-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 02/07/2024] [Indexed: 02/16/2024] Open
Abstract
Computational fluid dynamics (CFD) has recently become a pivotal tool in the design and scale-up of bioprocesses. While CFD has been extensively utilized for stirred tank reactors (STRs), there exists a relatively limited body of literature focusing on CFD applications for shake flasks, almost exclusively concentrated on fluids at waterlike viscosity. The importance of CFD model validation cannot be overstated. While techniques to elucidate the internal flow field are necessary for model validation in STRs, the liquid distribution, caused by the orbital shaking motion of shake flasks, can be exploited for model validation. An OpenFOAM CFD model for shake flasks has been established. Calculated liquid distributions were compared to suitable, previously published experimental data. Across a broad range of shaking conditions, at waterlike and moderate viscosity (16.7 mPa∙s), the CFD model's liquid distributions align excellently with the experimental data, in terms of overall shape and position of the liquid relative to the direction of the centrifugal force. Additionally, the CFD model was used to calculate the volumetric power input, based on the energy dissipation. Depending on the shaking conditions, the computed volumetric power inputs range from 0.1 to 7 kW/m3 and differed on average by 0.01 kW/m3 from measured literature data.
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Affiliation(s)
- Carl Dinter
- RWTH Aachen University, Forckenbeckstraße 51, 52074, Aachen, Germany
| | - Andreas Gumprecht
- Evonik Operations GmbH, Rodenbacher Chaussee 4, 63457, Hanau-Wolfgang, Germany
| | | | - Amizon Azizan
- School of Chemical Engineering, College of Engineering, Universiti Teknologi MARA, 40450, Shah Alam, Selangor, Malaysia
| | | | - Sven Hansen
- Evonik Operations GmbH, Paul-Baumann-Straße 1, 45772, Marl, Germany
| | - Jochen Büchs
- RWTH Aachen University, Forckenbeckstraße 51, 52074, Aachen, Germany.
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2
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Hacker DL, Durrer L, Quinche S, Lau K, Pojer F. Small-Scale Cultivation and Transfection of ExpiCHO and HEK293E Cells in Single-Use Orbitally Shaken Bioreactors. Methods Mol Biol 2024; 2810:85-98. [PMID: 38926274 DOI: 10.1007/978-1-0716-3878-1_6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/28/2024]
Abstract
Chinese hamster ovary (CHO) and human embryonic kidney 293 (HEK293) cells are the two most important mammalian hosts for the production of recombinant proteins. In this chapter, the suspension cultivation and transfection of these cells in small-scale, single-use orbitally shaken bioreactors, TubeSpin™ bioreactor 50 [orbitally shaken reactor 50 (OSR50)], and TubeSpin™ bioreactor 600 [orbitally shaken reactor 600 (OSR600)] are described. These are conical centrifuge tubes with nominal volumes of 50 mL and 600 mL, respectively, that have been redesigned with a ventilated cap for the cultivation of animal cells in suspension at working volumes up to 20 mL and 400 mL, respectively.
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Affiliation(s)
- David L Hacker
- Protein Production and Structure Core Facility (PTPSP), Faculty of Life Sciences, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Laurence Durrer
- Protein Production and Structure Core Facility (PTPSP), Faculty of Life Sciences, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Soraya Quinche
- Protein Production and Structure Core Facility (PTPSP), Faculty of Life Sciences, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Kelvin Lau
- Protein Production and Structure Core Facility (PTPSP), Faculty of Life Sciences, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Florence Pojer
- Protein Production and Structure Core Facility (PTPSP), Faculty of Life Sciences, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
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3
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Hansen S, Gumprecht A, Micheel L, Hennemann HG, Enzmann F, Blümke W. Implementation of Perforated Concentric Ring Walls Considerably Improves Gas-Liquid Mass Transfer of Shaken Bioreactors. Front Bioeng Biotechnol 2022; 10:894295. [PMID: 35646878 PMCID: PMC9135409 DOI: 10.3389/fbioe.2022.894295] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 04/14/2022] [Indexed: 11/25/2022] Open
Abstract
Since their first use in the 1930s, shake flasks have been a widely used bioreactor type for screening and process development due to a number of advantages. However, the limited gas-liquid mass transfer capacities—resulting from practical operation limits regarding shaking frequency and filling volumes—are a major drawback. The common way to increase the gas-liquid mass transfer in shake flasks with the implementation of baffles is generally not recommended as it comes along with several severe disadvantages. Thus, a new design principle for shaken bioreactors that aims for improving the gas-liquid mass transfer without losing the positive characteristics of unbaffled shake flasks is introduced. The flasks consist of cylindrical glass vessels with implemented perforated concentric ring walls. The ring walls improve the gas-liquid mass transfer via the formation of additional liquid films on both of its sides, whereas the perforations allow for mixing between the compartments. Sulfite oxidation experiments revealed over 200% higher maximum oxygen transfer capacities (OTRmax) compared to conventional shake flasks. In batch cultivations of Escherichia coli BL21 in mineral media, unlimited growth until glucose depletion and oxygen transfer rates (OTR) of up to 138 mmol/L/h instead of an oxygen limitation at 57 mmol/L/h as in normal shake flasks under comparable conditions could be achieved. Even overflow metabolism could be prevented due to sufficient oxygen supply without the use of unconventional shaking conditions or oxygen enrichment. Therefore, we believe that the new perforated ring flask principle has a high potential to considerably improve biotechnological screening and process development steps.
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Affiliation(s)
- Sven Hansen
- Evonik Operations GmbH, Marl, Germany
- *Correspondence: Sven Hansen,
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4
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Lu Z, Li C, Huang L, Zhong F, Fei L, Zhang H, Pan Y. Numerical Simulation of the Influence of Bottom Structures on the Flow Field Characteristic in Shaking Bioreactors. JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 2020. [DOI: 10.1252/jcej.20we022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Zhiming Lu
- College of Mechanical Engineering, Zhejiang University of Technology
| | - Chengtuo Li
- College of Mechanical Engineering, Zhejiang University of Technology
| | - Liuyi Huang
- Zhejiang Academy of Special Equipment Science
| | | | - Liangqi Fei
- College of Mechanical Engineering, Zhejiang University of Technology
| | - Hongliang Zhang
- College of Mechanical Engineering, Zhejiang University of Technology
| | - Yuhui Pan
- College of Mechanical Engineering, Zhejiang University of Technology
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5
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Seidel S, Maschke RW, Werner S, Jossen V, Eibl D. Oxygen Mass Transfer in Biopharmaceutical Processes: Numerical and Experimental Approaches. CHEM-ING-TECH 2020. [DOI: 10.1002/cite.202000179] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Stefan Seidel
- Zurich University of Applied Sciences School of Life Sciences and Facility Management Institute of Chemistry and Biotechnology Grüentalstrasse 14 8820 Wädenswil Switzerland
| | - Rüdiger W. Maschke
- Zurich University of Applied Sciences School of Life Sciences and Facility Management Institute of Chemistry and Biotechnology Grüentalstrasse 14 8820 Wädenswil Switzerland
| | - Sören Werner
- Zurich University of Applied Sciences School of Life Sciences and Facility Management Institute of Chemistry and Biotechnology Grüentalstrasse 14 8820 Wädenswil Switzerland
| | - Valentin Jossen
- Zurich University of Applied Sciences School of Life Sciences and Facility Management Institute of Chemistry and Biotechnology Grüentalstrasse 14 8820 Wädenswil Switzerland
| | - Dieter Eibl
- Zurich University of Applied Sciences School of Life Sciences and Facility Management Institute of Chemistry and Biotechnology Grüentalstrasse 14 8820 Wädenswil Switzerland
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6
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Agnolon V, Kiseljak D, Wurm MJ, Wurm FM, Foissard C, Gallais F, Wehrle S, Muñoz-Fontela C, Bellanger L, Correia BE, Corradin G, Spertini F. Designs and Characterization of Subunit Ebola GP Vaccine Candidates: Implications for Immunogenicity. Front Immunol 2020; 11:586595. [PMID: 33250896 PMCID: PMC7672190 DOI: 10.3389/fimmu.2020.586595] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 10/13/2020] [Indexed: 11/13/2022] Open
Abstract
The humoral responses of Ebola virus (EBOV) survivors mainly target the surface glycoprotein GP, and anti-GP neutralizing antibodies have been associated with protection against EBOV infection. In order to elicit protective neutralizing antibodies through vaccination a native-like conformation of the antigen is required. We therefore engineered and expressed in CHO cells several GP variants from EBOV (species Zaire ebolavirus, Mayinga variant), including a soluble GP ΔTM, a mucin-like domain-deleted GP ΔTM-ΔMUC, as well as two GP ΔTM-ΔMUC variants with C-terminal trimerization motifs in order to favor their native trimeric conformation. Inclusion of the trimerization motifs resulted in proteins mimicking GP metastable trimer and showing increased stability. The mucin-like domain appeared not to be critical for the retention of the native conformation of the GP protein, and its removal unmasked several neutralizing epitopes, especially in the trimers. The soluble GP variants inhibited mAbs neutralizing activity in a pseudotype transduction assay, further confirming the proteins' structural integrity. Interestingly, the trimeric GPs, a native-like GP complex, showed stronger affinity for antibodies raised by natural infection in EBOV disease survivors rather than for antibodies raised in volunteers that received the ChAd3-EBOZ vaccine. These results support our hypothesis that neutralizing antibodies are preferentially induced when using a native-like conformation of the GP antigen. The soluble trimeric recombinant GP proteins we developed represent a novel and promising strategy to develop prophylactic vaccines against EBOV and other filoviruses.
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Affiliation(s)
- Valentina Agnolon
- Division of Immunology and Allergy, Centre Hospitalier Universitaire Vaudois (CHUV), Lausanne, Switzerland
| | | | | | - Florian M Wurm
- ExcellGene SA, Monthey, Switzerland.,Faculty of Life Sciences, École Polytechnique Fédérale De Lausanne (EPFL), Lausanne, Switzerland
| | - Charlotte Foissard
- Université Paris Saclay, Commissariat à l'Energie Atomique et aux énergies alternatives (CEA), Institut national de recherche pour l'agriculture, l'alimentation et l'environnement (INRAE), Département Médicaments et Technologies pour la Santé (DMTS), SPI, Bagnols-sur-Cèze, France
| | - Fabrice Gallais
- Université Paris Saclay, Commissariat à l'Energie Atomique et aux énergies alternatives (CEA), Institut national de recherche pour l'agriculture, l'alimentation et l'environnement (INRAE), Département Médicaments et Technologies pour la Santé (DMTS), SPI, Bagnols-sur-Cèze, France
| | - Sarah Wehrle
- Laboratory of Protein Design and Immunoengineering, École Polytechnique Fédérale De Lausanne (EPFL), Lausanne, Switzerland
| | - César Muñoz-Fontela
- Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany.,German Center for Infection Research (DZIF), Partner site Hamburg, Hamburg, Germany
| | - Laurent Bellanger
- Université Paris Saclay, Commissariat à l'Energie Atomique et aux énergies alternatives (CEA), Institut national de recherche pour l'agriculture, l'alimentation et l'environnement (INRAE), Département Médicaments et Technologies pour la Santé (DMTS), SPI, Bagnols-sur-Cèze, France
| | - Bruno Emanuel Correia
- Laboratory of Protein Design and Immunoengineering, École Polytechnique Fédérale De Lausanne (EPFL), Lausanne, Switzerland
| | - Giampietro Corradin
- Department of Biochemistry, Université de Lausanne (UNIL), Epalinges, Switzerland
| | - François Spertini
- Division of Immunology and Allergy, Centre Hospitalier Universitaire Vaudois (CHUV), Lausanne, Switzerland
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Torres M, Elvin M, Betts Z, Place S, Gaffney C, Dickson AJ. Metabolic profiling of Chinese hamster ovary cell cultures at different working volumes and agitation speeds using spin tube reactors. Biotechnol Prog 2020; 37:e3099. [PMID: 33169492 DOI: 10.1002/btpr.3099] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 09/23/2020] [Accepted: 10/27/2020] [Indexed: 12/17/2022]
Abstract
Culture systems based on spin tube reactors have been consolidated in the development of manufacturing processes based on Chinese hamster ovary (CHO) cells. Despite their widespread use, there is little information about the consequences of varying operational setting parameters on the culture performance of recombinant CHO cell lines. Here, we investigated the effect of varying working volumes and agitation speeds on cell growth, protein production, and cell metabolism of two clonally derived CHO cell lines (expressing an IgG1 and a "difficult-to-express" fusion protein). Interestingly, low culture volumes increased recombinant protein production and decreased cell growth, while high culture volumes had the opposite effect. Altering agitation speeds exacerbated or moderated the differences observed due to culture volume changes. Combining low agitation rates with high culture volumes suppressed growth and recombinant protein production in CHO cells. Meanwhile, high agitation rates narrowed the differences in culture performance between low and high working volumes. These differences were also reflected in cell metabolism, where low culture volumes enhanced oxidative metabolism (linked to a productive phenotype) and high culture volume generated a metabolic profile that was predominately glycolytic (linked to a proliferative phenotype). Our findings indicate that the culture volume influence on metabolism modulates the balance between cell growth and protein production, a key feature that may be useful to adjust CHO cells toward a more productive phenotype.
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Affiliation(s)
- Mauro Torres
- Department of Chemical Engineering and Analytical Sciences, Faculty of Science & Engineering, Manchester Institute of Biotechnology, John Garside Building, The University of Manchester, Manchester, UK
| | - Mark Elvin
- Department of Chemical Engineering and Analytical Sciences, Faculty of Science & Engineering, Manchester Institute of Biotechnology, John Garside Building, The University of Manchester, Manchester, UK
| | - Zeynep Betts
- Department of Biology, Kocaeli University, Umuttepe Yerleskesi, Fen Edebiyat Fakultesi B Blok, Izmit, Turkey
| | - Svetlana Place
- Department of Chemical Engineering and Analytical Sciences, Faculty of Science & Engineering, Manchester Institute of Biotechnology, John Garside Building, The University of Manchester, Manchester, UK
| | - Claire Gaffney
- Department of Chemical Engineering and Analytical Sciences, Faculty of Science & Engineering, Manchester Institute of Biotechnology, John Garside Building, The University of Manchester, Manchester, UK
| | - Alan J Dickson
- Department of Chemical Engineering and Analytical Sciences, Faculty of Science & Engineering, Manchester Institute of Biotechnology, John Garside Building, The University of Manchester, Manchester, UK
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8
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Lu Z, Li C, Fei L, Zhang H, Pan Y. Effect of baffle structure on flow field characteristics of orbitally shaken bioreactor. Bioprocess Biosyst Eng 2020; 44:563-573. [PMID: 33200292 DOI: 10.1007/s00449-020-02469-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 10/22/2020] [Indexed: 11/28/2022]
Abstract
Disposable orbitally shaken bioreactors have been widely used for mammalian cell culture in suspension. Three kinds of baffle structures: vertical baffle, inclined baffle and horizontal baffle were designed in this work. The flow fields of the shaking bioreactor with different baffle structures were simulated, and the turbulence, dissolved oxygen and shear strain rate of the bioreactor were analyzed. The results showed that the quasi-steady-state flow patterns of the unbaffled shaking bioreactors were broken for the bioreactors with the strengthening effects of baffles. The mixing and the oxygen volumetric mass transfer coefficient (kLa) (simulated results) were improved significantly, and the shear strain rates were also increased greatly for the baffle bioreactors. The shear strain rates of the baffle bioreactors were mainly in the range of 0-20 s-1, and they were still low enough for CHO cell cultures.
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Affiliation(s)
- Zhiming Lu
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou, China.
| | - Chengtuo Li
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou, China
| | - Liangqi Fei
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou, China
| | - Hongliang Zhang
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou, China
| | - Yuhui Pan
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou, China
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9
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Li Z, Mu D, Liu C, Xin M, Fu S, Li S, Qi J, Wang Q, Luan J. The cell yields and biological characteristics of stromal/stem cells from lipoaspirate with different digestion loading ratio. Cytotechnology 2020; 72:203-215. [PMID: 31993890 PMCID: PMC7193004 DOI: 10.1007/s10616-020-00369-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Accepted: 01/09/2020] [Indexed: 01/31/2023] Open
Abstract
Effective harvesting procedure for adipose tissue is demanded by the affordable Good Manufacturing Practice-Compliant Production of clinical-grade adipose tissue-derived stem cells (hADSCs). Enzymatic digestion using collagenase is the most reliable method of adipose tissue-derived stem cells (hADSCs) isolation, while the optimized loading volume ratios of digestion to container during the shaking process of adipose tissue and collagenase mixture are still lacking. This study was conducted to determine the optimized loading volume ratio (mixture to container) for enzymatic digestion of Stromal/Stem Cells from lipoaspirate. Lipoaspirates were obtained from twelve women immediately after liposuction. Then tissue from each patient was divided into four groups according to different loading volume ratios in 50 ml centrifugal tube: 0.2 group, 0.4 group, 0.6 group, 0.8 group. Stromal vascular fractions (SVF) were obtained from each group, then total cell counts, viability and viable cell count were performed. hADSCs were harvested at passage (P) 2, whose morphologies, immunophenotypes, proliferation, and tri-differentiation abilities were compared. 0.4 loading volume ratio provided the highest cell yield, favorable viability and viable cell yield. The proliferation and triple differentiation ability of hADSCs obtained by 0.4 group was not inferior to that of other groups. Therefore, 0.4 may be the optimal loading volume ratio for hADSCs isolation from lipoaspirate by enzymatic digestion in current setting.
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Affiliation(s)
- Zifei Li
- Breast Plastic and Reconstructive Surgery Center of Plastic Surgery Hospital, Chinese Academy of Medical Science and Peking Union Medical College, 33 Ba-Da-Chu Rd, Shijingshan Dist, Beijing, 100144, People's Republic of China
| | - Dali Mu
- Breast Plastic and Reconstructive Surgery Center of Plastic Surgery Hospital, Chinese Academy of Medical Science and Peking Union Medical College, 33 Ba-Da-Chu Rd, Shijingshan Dist, Beijing, 100144, People's Republic of China
| | - Chunjun Liu
- Breast Plastic and Reconstructive Surgery Center of Plastic Surgery Hospital, Chinese Academy of Medical Science and Peking Union Medical College, 33 Ba-Da-Chu Rd, Shijingshan Dist, Beijing, 100144, People's Republic of China
| | - Minqiang Xin
- Breast Plastic and Reconstructive Surgery Center of Plastic Surgery Hospital, Chinese Academy of Medical Science and Peking Union Medical College, 33 Ba-Da-Chu Rd, Shijingshan Dist, Beijing, 100144, People's Republic of China
| | - Su Fu
- Breast Plastic and Reconstructive Surgery Center of Plastic Surgery Hospital, Chinese Academy of Medical Science and Peking Union Medical College, 33 Ba-Da-Chu Rd, Shijingshan Dist, Beijing, 100144, People's Republic of China
| | - Shangshan Li
- Breast Plastic and Reconstructive Surgery Center of Plastic Surgery Hospital, Chinese Academy of Medical Science and Peking Union Medical College, 33 Ba-Da-Chu Rd, Shijingshan Dist, Beijing, 100144, People's Republic of China
| | - Jun Qi
- Breast Plastic and Reconstructive Surgery Center of Plastic Surgery Hospital, Chinese Academy of Medical Science and Peking Union Medical College, 33 Ba-Da-Chu Rd, Shijingshan Dist, Beijing, 100144, People's Republic of China
| | - Qian Wang
- Research Center of Plastic Surgery Hospital, Chinese Academy of Medical Sciences & Peking Union of Medical College, 33 Ba-Da-Chu Rd, Shijingshan Dist, Beijing, 100144, People's Republic of China.
| | - Jie Luan
- Breast Plastic and Reconstructive Surgery Center of Plastic Surgery Hospital, Chinese Academy of Medical Science and Peking Union Medical College, 33 Ba-Da-Chu Rd, Shijingshan Dist, Beijing, 100144, People's Republic of China.
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10
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Zhu L, Song B, Wang Z. Analyzing the suitability of a baffled orbitally shaken bioreactor for cells cultivation using the computational fluid dynamics approach. Biotechnol Prog 2018; 35:e2746. [PMID: 30421865 DOI: 10.1002/btpr.2746] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 09/30/2018] [Accepted: 11/08/2018] [Indexed: 12/19/2022]
Abstract
Orbitally shaken bioreactors (OSRs) is one of important bioreactors for mammalian cells cultivation in suspension, especially for the screening of valuable microorganisms and in basic bioprocess development experiments. However, the suitability of OSRs for cells culture in large scale is still under development. In this article, a new kind of OSRs with baffle structure was proposed and a three-dimensional CFD model was established to analyze the influence of baffle structure on the flow field. Lower installation height of baffles was found suitable for improving the mixing efficiency. Compared to the unbaffled OSR, the baffled OSR could enhance the level of oxygen transfer largely but the oxygen transfer rate was independent on the baffle installation height. Moreover, as the baffle installation height increased, the energy transferred for liquid motion was decreased. Finally, the shear stress of the baffled OSRs proposed was gentle for mammalian cells growth. © 2018 American Institute of Chemical Engineers Biotechnol. Prog., 35: e2746, 2019.
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Affiliation(s)
- Likuan Zhu
- School of Mechatronics Engineering, Harbin Inst. of Technology, Harbin, Heilongjiang, 150001, China.,School of Mechatronics Engineering, Shenzhen University, Shenzhen, Guangdong, 518060, China
| | - Boyan Song
- School of Mechatronics Engineering, Harbin Inst. of Technology, Harbin, Heilongjiang, 150001, China
| | - Zhenlong Wang
- School of Mechatronics Engineering, Harbin Inst. of Technology, Harbin, Heilongjiang, 150001, China
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11
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Hacker DL, Durrer L, Quinche S. CHO and HEK293 Cultivation and Transfection in Single-Use Orbitally Shaken Bioreactors. Methods Mol Biol 2018; 1850:123-131. [PMID: 30242684 DOI: 10.1007/978-1-4939-8730-6_9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Chinese hamster ovary (CHO) and human embryonic kidney 293 (HEK293) cells are the two most popular mammalian hosts for the production of recombinant proteins. In this chapter the suspension cultivation and transfection of these cells in small-scale disposable bioreactors is described. The TubeSpin bioreactor 50 and TubeSpin bioreactor 600 are designed for the cultivation of suspension cells by orbital shaking and have maximum working volumes of about 15 mL and 400 mL, respectively.
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Affiliation(s)
- David L Hacker
- Protein Production and Structure Core Facility (PPSCF), Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
| | - Laurence Durrer
- Protein Production and Structure Core Facility (PPSCF), Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Soraya Quinche
- Protein Production and Structure Core Facility (PPSCF), Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
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