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Šrom O, Trávníková V, Wutz J, Kuschel M, Unsoeld A, Wucherpfennig T, Šoóš M. Characterization of hydrodynamic stress in ambr250® bioreactor system and its impact on mammalian cell culture. Biochem Eng J 2022. [DOI: 10.1016/j.bej.2021.108240] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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2
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Hajduk J, Wolf M, Steinhoff R, Karst D, Souquet J, Broly H, Morbidelli M, Zenobi R. Monitoring of antibody glycosylation pattern based on microarray MALDI-TOF mass spectrometry. J Biotechnol 2019; 302:77-84. [PMID: 31260704 DOI: 10.1016/j.jbiotec.2019.06.306] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 06/11/2019] [Accepted: 06/26/2019] [Indexed: 10/26/2022]
Abstract
Biologically manufactured monoclonal antibodies (mAb) can strongly vary in their efficacy and affinity. Therefore, engineering and production of the mAb is highly regulated and requires product monitoring, especially in terms of N-glycosylation patterns. In this work, we present a high-throughput matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS) method based on a microarray technology to monitor N-glycopeptides of IgG1 produced in a perfusion cell culture. A bottom-up approach combined with zwitterionic-hydrophilic interaction liquid chromatography for sample purification was used to determine the day-by-day variation of the terminal galactose within two major N-glycoforms. Our results show that microarrays for mass spectrometry (MAMS) are a robust platform for the rapid determination of the carbohydrate distribution. The spectral repeatability is characterized by a low coefficient of variations (1.7% and 7.1% for the FA2 and FA2G1 structures, respectively) and allows to detect the N-glycosylation variability resulting from operating conditions during the bioreactor process. The observed trend of released N-glycans was confirmed using capillary gel electrophoresis with laser-induced fluorescence detection. Therefore, the microarray technology is a promising analytical tool for glycosylation control during the production process of recombinant proteins.
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Affiliation(s)
- Joanna Hajduk
- Laboratory of Organic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, CH-8093, Zurich, Switzerland
| | - Moritz Wolf
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, CH-8093, Zurich, Switzerland
| | - Robert Steinhoff
- Laboratory of Organic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, CH-8093, Zurich, Switzerland
| | - Daniel Karst
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, CH-8093, Zurich, Switzerland
| | - Jonathan Souquet
- Biotech Process Science Technology & Innovation, Merck-Serono S.A., Corsier-sur-Vevey, Switzerland
| | - Hervé Broly
- Biotech Process Science Technology & Innovation, Merck-Serono S.A., Corsier-sur-Vevey, Switzerland
| | - Massimo Morbidelli
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, CH-8093, Zurich, Switzerland
| | - Renato Zenobi
- Laboratory of Organic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, CH-8093, Zurich, Switzerland.
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3
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Kernalléguen A, Steinhoff R, Bachler S, Dittrich PS, Saint-Marcoux F, El Bakhi S, Vorspan F, Léonetti G, Lafitte D, Pélissier-Alicot AL, Zenobi R. High-Throughput Monitoring of Cocaine and Its Metabolites in Hair Using Microarrays for Mass Spectrometry and Matrix-Assisted Laser Desorption/Ionization-Tandem Mass Spectrometry. Anal Chem 2018; 90:2302-2309. [DOI: 10.1021/acs.analchem.7b04693] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Angéline Kernalléguen
- Department
of Chemistry and Applied Biosciences, ETH Zurich, 8093 Zurich, Switzerland
- Aix Marseille University, INSERM, CRO2, UMR_S
911, PIT2, 13005 Marseille, France
- Aix Marseille University, CNRS, EFS, ADES UMR
7268, 13005 Marseille, France
| | - Robert Steinhoff
- Department
of Chemistry and Applied Biosciences, ETH Zurich, 8093 Zurich, Switzerland
| | - Simon Bachler
- Bioanalytics
Group, Department of Biosystems Science and Engineering, ETH Zurich, 4058 Basel, Switzerland
| | - Petra S. Dittrich
- Bioanalytics
Group, Department of Biosystems Science and Engineering, ETH Zurich, 4058 Basel, Switzerland
| | | | - Souleiman El Bakhi
- Laboratoire
de Pharmacologie et Toxicologie, CHU Limoges, 87000 Limoges, France
| | - Florence Vorspan
- Services
de Psychiatrie et de Médecine Addictologique, Hôpital Fernand Widal, APHP, 75475 Paris, France
- Universités Paris Descartes-Paris Diderot, INSERM UMR-S
1114, 75013 Paris France
| | - Georges Léonetti
- Aix Marseille University, CNRS, EFS, ADES UMR
7268, 13005 Marseille, France
- Aix Marseille University, APHM, CHU Timone, Service de
Médecine Légale, 13005 Marseille, France
| | - Daniel Lafitte
- Aix Marseille University, INSERM, CRO2, UMR_S
911, PIT2, 13005 Marseille, France
| | | | - Renato Zenobi
- Department
of Chemistry and Applied Biosciences, ETH Zurich, 8093 Zurich, Switzerland
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Karst DJ, Steinhoff RF, Kopp MRG, Soos M, Zenobi R, Morbidelli M. Isotope labeling to determine the dynamics of metabolic response in CHO cell perfusion bioreactors using MALDI-TOF-MS. Biotechnol Prog 2017; 33:1630-1639. [PMID: 28840654 DOI: 10.1002/btpr.2539] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2017] [Revised: 06/22/2017] [Indexed: 01/09/2023]
Abstract
The steady-state operation of Chinese hamster ovary (CHO) cells in perfusion bioreactors requires the equilibration of reactor dynamics and cell metabolism. Accordingly, in this work we investigate the transient cellular response to changes in its environment and their interactions with the bioreactor hydrodynamics. This is done in a benchtop perfusion bioreactor using MALDI-TOF MS through isotope labeling of complex intracellular nucleotides (ATP, UTP) and nucleotide sugars (UDP-Hex, UDP-HexNAc). By switching to a 13 C6 glucose containing feed media during constant operation at 20 × 106 cells and a perfusion rate of 1 reactor volume per day, isotopic steady state was studied. A step change to the 13 C6 glucose medium in spin tubes allowed the determination of characteristic times for the intracellular turnover of unlabeled metabolites pools, τST (≤0.56 days), which were confirmed in the bioreactor. On the other hand, it is shown that the reactor residence time τR (1 day) and characteristic time for glucose uptake τGlc (0.33 days), representative of the bioreactor dynamics, delayed the consumption of 13 C6 glucose in the bioreactor and thus the intracellular 13 C enrichment. The proposed experimental approach allowed the decoupling of bioreactor hydrodynamics and intrinsic dynamics of cell metabolism in response to a change in the cell culture environment. © 2017 American Institute of Chemical Engineers Biotechnol. Prog., 33:1630-1639, 2017.
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Affiliation(s)
- Daniel J Karst
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, 8093, Switzerland
| | - Robert F Steinhoff
- Laboratory of Organic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, 8093, Switzerland
| | - Marie R G Kopp
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, 8093, Switzerland
| | - Miroslav Soos
- Department of Chemical Engineering, University of Chemistry and Technology, Technicka 3, Prague, 166 28, Czech Republic
| | - Renato Zenobi
- Laboratory of Organic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, 8093, Switzerland
| | - Massimo Morbidelli
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, 8093, Switzerland
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5
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Simplifying the Preparation of Pollen Grains for MALDI-TOF MS Classification. Int J Mol Sci 2017; 18:ijms18030543. [PMID: 28273807 PMCID: PMC5372559 DOI: 10.3390/ijms18030543] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 02/24/2017] [Accepted: 02/27/2017] [Indexed: 12/16/2022] Open
Abstract
Matrix-assisted laser desorption ionization time of flight mass spectrometry (MALDI-TOF MS) is a well-implemented analytical technique for the investigation of complex biological samples. In MS, the sample preparation strategy is decisive for the success of the measurements. Here, sample preparation processes and target materials for the investigation of different pollen grains are compared. A reduced and optimized sample preparation process prior to MALDI-TOF measurement is presented using conductive carbon tape as target. The application of conductive tape yields in enhanced absolute signal intensities and mass spectral pattern information, which leads to a clear separation in subsequent pattern analysis. The results will be used to improve the taxonomic differentiation and identification, and might be useful for the development of a simple routine method to identify pollen based on mass spectrometry.
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Karst DJ, Steinhoff RF, Kopp MRG, Serra E, Soos M, Zenobi R, Morbidelli M. Intracellular CHO Cell Metabolite Profiling Reveals Steady-State Dependent Metabolic Fingerprints in Perfusion Culture. Biotechnol Prog 2017; 33:879-890. [PMID: 27997765 DOI: 10.1002/btpr.2421] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 11/01/2016] [Indexed: 11/08/2022]
Abstract
Perfusion cell culture processes allow the steady-state culture of mammalian cells at high viable cell density, which is beneficial for overall product yields and homogeneity of product quality in the manufacturing of therapeutic proteins. In this study, the extent of metabolic steady state and the change of the metabolite profile between different steady states of an industrial Chinese hamster ovary (CHO) cell line producing a monoclonal antibody (mAb) was investigated in stirred tank perfusion bioreactors. Matrix-assisted laser desorption/ionization time of flight mass spectrometry (MALDI-TOF-MS) of daily cell extracts revealed more than a hundred peaks, among which 76 metabolites were identified by tandem MS (MS/MS) and high resolution Fourier transform ion cyclotron resonance (FT-ICR) MS. Nucleotide ratios (Uridine (U)-ratio, nucleotide triphosphate (NTP)-ratio and energy charge (EC)) and multivariate analysis of all features indicated a consistent metabolite profile for a stable culture performed at 40 × 106 cells/mL over 26 days of culture. Conversely, the reactor was operated continuously so as to reach three distinct steady states one after the other at 20, 60, and 40 × 106 cells/mL. In each case, a stable metabolite profile was achieved after an initial transient phase of approximately three days at constant cell density when varying between these set points. Clear clustering according to cell density was observed by principal component analysis, indicating steady-state dependent metabolite profiles. In particular, varying levels of nucleotides, nucleotide sugar, and lipid precursors explained most of the variance between the different cell density set points. © 2016 American Institute of Chemical Engineers Biotechnol. Prog., 33:879-890, 2017.
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Affiliation(s)
- Daniel J Karst
- Dept. of Chemistry and Applied Biosciences, Inst. for Chemical and Bioengineering, ETH Zurich, Zurich, Switzerland
| | - Robert F Steinhoff
- Dept. of Chemistry and Applied Biosciences, Laboratory of Organic Chemistry, ETH Zurich, Zurich, Switzerland
| | - Marie R G Kopp
- Dept. of Chemistry and Applied Biosciences, Inst. for Chemical and Bioengineering, ETH Zurich, Zurich, Switzerland
| | - Elisa Serra
- Dept. of Chemistry and Applied Biosciences, Inst. for Chemical and Bioengineering, ETH Zurich, Zurich, Switzerland
| | - Miroslav Soos
- Dept. of Chemistry and Applied Biosciences, Inst. for Chemical and Bioengineering, ETH Zurich, Zurich, Switzerland.,Dept. of Chemical Engineering, University of Chemistry and Technology, Prague, 166 28, Czech Republic
| | - Renato Zenobi
- Dept. of Chemistry and Applied Biosciences, Laboratory of Organic Chemistry, ETH Zurich, Zurich, Switzerland
| | - Massimo Morbidelli
- Dept. of Chemistry and Applied Biosciences, Inst. for Chemical and Bioengineering, ETH Zurich, Zurich, Switzerland
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7
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Quantitative profiling of O-glycans by electrospray ionization- and matrix-assisted laser desorption ionization-time-of-flight-mass spectrometry after in-gel derivatization with isotope-coded 1-phenyl-3-methyl-5-pyrazolone. Anal Chim Acta 2016; 935:187-96. [DOI: 10.1016/j.aca.2016.06.032] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Revised: 06/02/2016] [Accepted: 06/16/2016] [Indexed: 11/19/2022]
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8
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Villiger TK, Scibona E, Stettler M, Broly H, Morbidelli M, Soos M. Controlling the time evolution of mAb N-linked glycosylation - Part II: Model-based predictions. Biotechnol Prog 2016; 32:1135-1148. [PMID: 27273889 DOI: 10.1002/btpr.2315] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Revised: 03/24/2016] [Indexed: 01/04/2023]
Abstract
N-linked glycosylation is known to be a crucial factor for the therapeutic efficacy and safety of monoclonal antibodies (mAbs) and many other glycoproteins. The nontemplate process of glycosylation is influenced by external factors which have to be tightly controlled during the manufacturing process. In order to describe and predict mAb N-linked glycosylation patterns in a CHO-S cell fed-batch process, an existing dynamic mathematical model has been refined and coupled to an unstructured metabolic model. High-throughput cell culture experiments carried out in miniaturized bioreactors in combination with intracellular measurements of nucleotide sugars were used to tune the parameter configuration of the coupled models as a function of extracellular pH, manganese and galactose addition. The proposed modeling framework is able to predict the time evolution of N-linked glycosylation patterns during a fed-batch process as a function of time as well as the manipulated variables. A constant and varying mAb N-linked glycosylation pattern throughout the culture were chosen to demonstrate the predictive capability of the modeling framework, which is able to quantify the interconnected influence of media components and cell culture conditions. Such a model-based evaluation of feeding regimes using high-throughput tools and mathematical models gives rise to a more rational way to control and design cell culture processes with defined glycosylation patterns. © 2016 American Institute of Chemical Engineers Biotechnol. Prog., 32:1135-1148, 2016.
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Affiliation(s)
- Thomas K Villiger
- Dept. of Chemistry and Applied Biosciences, Inst. for Chemical and Bioengineering, ETH Zurich, Zurich, Switzerland
| | - Ernesto Scibona
- Dept. of Chemistry and Applied Biosciences, Inst. for Chemical and Bioengineering, ETH Zurich, Zurich, Switzerland
| | - Matthieu Stettler
- Biotech Process Sciences, Merck-Serono S.A., Corsier-sur-Vevey, 1809, Switzerland
| | - Hervé Broly
- Biotech Process Sciences, Merck-Serono S.A., Corsier-sur-Vevey, 1809, Switzerland
| | - Massimo Morbidelli
- Dept. of Chemistry and Applied Biosciences, Inst. for Chemical and Bioengineering, ETH Zurich, Zurich, Switzerland
| | - Miroslav Soos
- Dept. of Chemical Engineering, University of Chemistry and Technology, Prague, Czech Republic.
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9
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Villiger TK, Roulet A, Périlleux A, Stettler M, Broly H, Morbidelli M, Soos M. Controlling the time evolution of mAb N-linked glycosylation, Part I: Microbioreactor experiments. Biotechnol Prog 2016; 32:1123-1134. [PMID: 27254475 DOI: 10.1002/btpr.2305] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Revised: 03/24/2016] [Indexed: 01/28/2023]
Abstract
N-linked glycosylation is of key importance for the efficacy of many biotherapeutic proteins such as monoclonal antibodies (mAbs). Media components and cell culture conditions have been shown to significantly affect N-linked glycosylation during the production of glycoproteins using mammalian cell fed-batch cultures. These parameters inevitably change in modern industrial processes with concentrated feed additions and cell densities beyond 2 × 107 cells/mL. In order to control the time-dependent changes of protein glycosylation, an automated microbioreactor system was used to investigate the effects of culture pH, ammonia, galactose, and manganese chloride supplementation on nucleotide sugars as well as mAb N-linked glycosylation in a time-dependent way. Two different strategies comprising of a single shift of culture conditions as well as multiple media supplementations along the culture duration were applied to obtain changing and constant glycosylation profiles. The different feeding approaches enabled constant glycosylation patterns throughout the entire culture duration at different levels. By modulating the time evolution of the mAb glycan pattern, not only the endpoint but also the ratios between different glycosylation structures could be modified. © 2016 American Institute of Chemical Engineers Biotechnol. Prog., 32:1123-1134, 2016.
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Affiliation(s)
- Thomas K Villiger
- Dept. of Chemistry and Applied Biosciences, Inst. for Chemical and Bioengineering, ETH Zurich, Zurich, Switzerland
| | - Anaïs Roulet
- Biotech Process Sciences, Merck-Serono S.A., Corsier-sur-Vevey, ZI B 1809, Switzerland
| | - Arnaud Périlleux
- Biotech Process Sciences, Merck-Serono S.A., Corsier-sur-Vevey, ZI B 1809, Switzerland
| | - Matthieu Stettler
- Biotech Process Sciences, Merck-Serono S.A., Corsier-sur-Vevey, ZI B 1809, Switzerland
| | - Hervé Broly
- Biotech Process Sciences, Merck-Serono S.A., Corsier-sur-Vevey, ZI B 1809, Switzerland
| | - Massimo Morbidelli
- Dept. of Chemistry and Applied Biosciences, Inst. for Chemical and Bioengineering, ETH Zurich, Zurich, Switzerland
| | - Miroslav Soos
- Dept. of Chemistry and Applied Biosciences, Inst. for Chemical and Bioengineering, ETH Zurich, Zurich, Switzerland. .,Dept. of Chemical Engineering, University of Chemistry and Technology, Prague, Czech Republic.
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10
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Villiger TK, Steinhoff RF, Ivarsson M, Solacroup T, Stettler M, Broly H, Krismer J, Pabst M, Zenobi R, Morbidelli M, Soos M. High-throughput profiling of nucleotides and nucleotide sugars to evaluate their impact on antibody N-glycosylation. J Biotechnol 2016; 229:3-12. [PMID: 27131894 DOI: 10.1016/j.jbiotec.2016.04.039] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Revised: 04/16/2016] [Accepted: 04/20/2016] [Indexed: 01/25/2023]
Abstract
Recent advances in miniaturized cell culture systems have facilitated the screening of media additives on productivity and protein quality attributes of mammalian cell cultures. However, intracellular components are not routinely measured due to the limited throughput of available analytical techniques. In this work, time profiling of intracellular nucleotides and nucleotide sugars of CHO-S cell fed-batch processes in a micro-scale bioreactor system was carried out using a recently developed high-throughput method based on matrix-assisted laser desorption/ionization (MALDI) time-of-flight mass spectrometry (TOF-MS). Supplementation of various media additives significantly altered the intracellular nucleotides and nucleotide sugars that are inextricably linked to the process of glycosylation. The results revealed that UDP-Gal synthesis appeared to be particularly limiting whereas the impact of elevated UDP-GlcNAc and GDP-Fuc levels on the final glycosylation patterns was only marginally important. In contrast, manganese and asparagine supplementation altered the glycan profiles without affecting intracellular components. The combination of miniaturized cell cultures and high-throughput analytical techniques serves therefore as a useful tool for future quality driven media optimization studies.
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Affiliation(s)
- Thomas K Villiger
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, CH- 8093 Zurich, Switzerland
| | - Robert F Steinhoff
- Laboratory of Organic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, CH-8093 Zurich, Switzerland
| | - Marija Ivarsson
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, CH- 8093 Zurich, Switzerland
| | - Thomas Solacroup
- Merck Serono SA, Corsier-sur-Vevey, Biotech Process Sciences, ZI B, CH-1809 Fenil-sur-Corsier, Switzerland
| | - Matthieu Stettler
- Merck Serono SA, Corsier-sur-Vevey, Biotech Process Sciences, ZI B, CH-1809 Fenil-sur-Corsier, Switzerland
| | - Hervé Broly
- Merck Serono SA, Corsier-sur-Vevey, Biotech Process Sciences, ZI B, CH-1809 Fenil-sur-Corsier, Switzerland
| | - Jasmin Krismer
- Laboratory of Organic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, CH-8093 Zurich, Switzerland
| | - Martin Pabst
- Laboratory of Organic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, CH-8093 Zurich, Switzerland
| | - Renato Zenobi
- Laboratory of Organic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, CH-8093 Zurich, Switzerland
| | - Massimo Morbidelli
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, CH- 8093 Zurich, Switzerland
| | - Miroslav Soos
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, CH- 8093 Zurich, Switzerland; Department of Chemical Engineering, University of Chemistry and Technology, Technicka 5, 166 28 Prague, Czech Republic.
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Zhou F, Liu S, Xing J, Song F, Liu Z, Liu S. Thermal-assisted gasification injector for analyzing high-salt solution samples: a novel device developed for online coupling of liquid chromatography with direct analysis in real time mass spectrometry. RSC Adv 2016. [DOI: 10.1039/c6ra12712f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
A thermal-assisted gasification injector was designed for online coupling of liquid-chromatography to direct-analysis-in-real-time mass-spectrometry. The method can be used in analysis with an inorganic salt matrix and weak polar solvent.
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Affiliation(s)
- Feng Zhou
- National Center of Mass Spectrometry in Changchun
- Jilin Province Key Laboratory of Chinese Medicine Chemistry and Mass Spectrometry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
| | - Shu Liu
- National Center of Mass Spectrometry in Changchun
- Jilin Province Key Laboratory of Chinese Medicine Chemistry and Mass Spectrometry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
| | - Junpeng Xing
- National Center of Mass Spectrometry in Changchun
- Jilin Province Key Laboratory of Chinese Medicine Chemistry and Mass Spectrometry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
| | - Fengrui Song
- National Center of Mass Spectrometry in Changchun
- Jilin Province Key Laboratory of Chinese Medicine Chemistry and Mass Spectrometry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
| | - Zhiqiang Liu
- National Center of Mass Spectrometry in Changchun
- Jilin Province Key Laboratory of Chinese Medicine Chemistry and Mass Spectrometry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
| | - Shuying Liu
- National Center of Mass Spectrometry in Changchun
- Jilin Province Key Laboratory of Chinese Medicine Chemistry and Mass Spectrometry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
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12
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Ben Yahia B, Malphettes L, Heinzle E. Macroscopic modeling of mammalian cell growth and metabolism. Appl Microbiol Biotechnol 2015; 99:7009-24. [PMID: 26198881 PMCID: PMC4536272 DOI: 10.1007/s00253-015-6743-6] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2015] [Revised: 05/28/2015] [Accepted: 05/30/2015] [Indexed: 12/24/2022]
Abstract
We review major modeling strategies and methods to understand and simulate the macroscopic behavior of mammalian cells. These strategies comprise two important steps: the first step is to identify stoichiometric relationships for the cultured cells connecting the extracellular inputs and outputs. In a second step, macroscopic kinetic models are introduced. These relationships together with bioreactor and metabolite balances provide a complete description of a system in the form of a set of differential equations. These can be used for the simulation of cell culture performance and further for optimization of production.
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Affiliation(s)
- Bassem Ben Yahia
- />Biochemical Engineering Institute, Saarland University, Campus A1.5, D-66123 Saarbruecken, Germany
- />Upstream Process Sciences Biotech Sciences, UCB Pharma S.A., Avenue de l’Industrie, B-1420, Braine l’Alleud, Belgium
| | - Laetitia Malphettes
- />Upstream Process Sciences Biotech Sciences, UCB Pharma S.A., Avenue de l’Industrie, B-1420, Braine l’Alleud, Belgium
| | - Elmar Heinzle
- />Biochemical Engineering Institute, Saarland University, Campus A1.5, D-66123 Saarbruecken, Germany
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