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Zheng YY, Hu ZN, Zhou GH. A review: analysis of technical challenges in cultured meat production and its commercialization. Crit Rev Food Sci Nutr 2024:1-18. [PMID: 38384235 DOI: 10.1080/10408398.2024.2315447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2024]
Abstract
The cultured meat technology has developed rapidly in recent years, but there are still many technical challenges that hinder the large-scale production and commercialization of cultured meat. Firstly, it is necessary to lay the foundation for cultured meat production by obtaining seed cells and maintaining stable cell functions. Next, technologies such as bioreactors are used to expand the scale of cell culture, and three-dimensional culture technologies such as scaffold culture or 3D printing are used to construct the three-dimensional structure of cultured meat. At the same time, it can reduce production costs by developing serum-free medium suitable for cultured meat. Finally, the edible quality of cultured meat is improved by evaluating food safety and sensory flavor, and combining ethical and consumer acceptability issues. Therefore, this review fully demonstrates the current development status and existing technical challenges of the cultured meat production technology with regard to the key points described above, in order to provide research ideas for the industrial production of cultured meat.
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Affiliation(s)
- Yan-Yan Zheng
- College of Food Science and Technology, Nanjing Agricultural University, National Center of Meat Quality and Safety Nanjing, MOST, Key Laboratory of Meat Processing and Quality Control, MOE, Key Laboratory of Meat Processing, MOA, Nanjing, P.R. China
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Ze-Nan Hu
- College of Food Science and Technology, Nanjing Agricultural University, National Center of Meat Quality and Safety Nanjing, MOST, Key Laboratory of Meat Processing and Quality Control, MOE, Key Laboratory of Meat Processing, MOA, Nanjing, P.R. China
| | - Guang-Hong Zhou
- College of Food Science and Technology, Nanjing Agricultural University, National Center of Meat Quality and Safety Nanjing, MOST, Key Laboratory of Meat Processing and Quality Control, MOE, Key Laboratory of Meat Processing, MOA, Nanjing, P.R. China
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, China
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2
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Cui W, Liu S. Optimization of adaptation parameters from adhesion cell culture in serum-containing media to suspension in chemically defined media by superlative box design. Cytotechnology 2024; 76:39-52. [PMID: 38304631 PMCID: PMC10828141 DOI: 10.1007/s10616-023-00596-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 09/04/2023] [Indexed: 02/03/2024] Open
Abstract
A new design of experiments-superlative box design (SBD), was adopted to optimize the adaptation of Chinese hamster ovary cells from adhesion culture to serum-free suspension culture. It is a general trend to use a serum-free medium instead of a serum-containing medium. The advantage of serum-free medium (chemically defended) is that it does not contain unknown components and avoids safety issues. SBD requires fewer experiments while ensuring a sufficient number of experiments and uniformity in the distribution of experiments amongst all the factors. Six factors were considered in this experimental design with 43 runs plus three more repeating center runs. The cell line was adapted to serum-free media by gradually reducing serum, and from adherent to suspension by rotating at various speeds in a shake flask. Response surface methodology was applied to find the optimum condition. The optimized cell density reached 7.02 × 105 cells/mL, calculated by the quadratic model. Experiments validated the predicted cell adaptation with the maximum cell density. Three suspension runs were selected randomly to perform in the bioreactor to validate cell stability and production homogeneity. This study provides an efficient method to transfer adherent cells to suspension cells and is the first to successfully use SBD and establish a parameter quadratic optimization model.
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Affiliation(s)
- Wanyue Cui
- Department of Chemical Engineering, SUNY College of Environmental Science and Forestry, Syracuse, NY 13210 USA
| | - Shijie Liu
- Department of Chemical Engineering, SUNY College of Environmental Science and Forestry, Syracuse, NY 13210 USA
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3
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Sacco SA, McAtee Pereira AG, Trenary I, Smith KD, Betenbaugh MJ, Young JD. Overexpression of peroxisome proliferator-activated receptor γ co-activator-1⍺ (PGC-1⍺) in Chinese hamster ovary cells increases oxidative metabolism and IgG productivity. Metab Eng 2023; 79:108-117. [PMID: 37473833 DOI: 10.1016/j.ymben.2023.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 04/17/2023] [Accepted: 07/17/2023] [Indexed: 07/22/2023]
Abstract
Chinese hamster ovary (CHO) cells are used extensively to produce protein therapeutics, such as monoclonal antibodies (mAbs), in the biopharmaceutical industry. MAbs are large proteins that are energetically demanding to synthesize and secrete; therefore, high-producing CHO cell lines that are engineered for maximum metabolic efficiency are needed to meet increasing demands for mAb production. Previous studies have identified that high-producing cell lines possess a distinct metabolic phenotype when compared to low-producing cell lines. In particular, it was found that high mAb production is correlated to lactate consumption and elevated TCA cycle flux. We hypothesized that enhancing flux through the mitochondrial TCA cycle and oxidative phosphorylation would lead to increased mAb productivities and final titers. To test this hypothesis, we overexpressed peroxisome proliferator-activated receptor γ co-activator-1⍺ (PGC-1⍺), a gene that promotes mitochondrial metabolism, in an IgG-producing parental CHO cell line. Stable cell pools overexpressing PGC-1⍺ exhibited increased oxygen consumption, indicating increased mitochondrial metabolism, as well as increased mAb specific productivity compared to the parental line. We also performed 13C metabolic flux analysis (MFA) to quantify how PGC-1⍺ overexpression alters intracellular metabolic fluxes, revealing not only increased TCA cycle flux, but global upregulation of cellular metabolic activity. This study demonstrates the potential of rationally engineering the metabolism of industrial cell lines to improve overall mAb productivity and to increase the abundance of high-producing clones in stable cell pools.
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Affiliation(s)
- Sarah A Sacco
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, TN, USA
| | | | - Irina Trenary
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, TN, USA
| | - Kevin D Smith
- Pharmaceutical Development and Manufacturing Sciences, Janssen Research and Development, Spring House, PA, USA
| | - Michael J Betenbaugh
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD, USA
| | - Jamey D Young
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, TN, USA.
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4
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Jang M, Pete ES, Bruheim P. The impact of serum-free culture on HEK293 cells: From the establishment of suspension and adherent serum-free adaptation cultures to the investigation of growth and metabolic profiles. Front Bioeng Biotechnol 2022; 10:964397. [PMID: 36147538 PMCID: PMC9485887 DOI: 10.3389/fbioe.2022.964397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 08/12/2022] [Indexed: 12/05/2022] Open
Abstract
Serum-free cultures are preferred for application in clinical cell therapy and facilitate the purification processes of bioproducts, such as vaccines and recombinant proteins. It can replace traditional cell culture - eliminating potential issues posed by animal-derived serum supplementation, such as lot to lot variation and risks of pathogen infection from the host animal. However, adapting cells to serum-free conditions can be challenging and time-consuming, and is cell line and medium dependent. In addition, the knowledge of the impact of serum-free culture on cellular metabolism is limited. Herein, we successfully established serum-free suspension and adherent cultures through two adaptation procedures for HEK293 cells in serum-free Freestyle 293 medium. Furthermore, growth kinetics and intracellular metabolic profiles related to central carbon metabolism were investigated. The entire adaptation procedure took 1 month, and high cell viability (>90%) was maintained throughout. The serum-free adherent culture showed the best growth performance, measured as the highest cell density and growth rate. The largest differences in metabolic profiles were observed between culture modes (adherent vs. suspension), followed by culture medium condition (control growth medium vs. serum-free medium). Metabolic differences related to the adaptation procedures were only seen in suspension cultures. Interestingly, the intracellular itaconate concentration was significantly higher in suspension cells compared to adherent cells. Furthermore, when the cells back-adapted from serum-free to serum-supplemented control medium, their metabolic profiles were immediately reversed, highlighting the effect of extracellular components on metabolic phenotype. This study provides strategies for efficient serum-free cultivation and deeper insights into the cellular responses related to growth and metabolism responses to diverse culture conditions.
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5
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Sun Y, Huang L, Nie J, Feng K, Liu Y, Bai Z. Development of a perfusion process for serum-free adenovirus vector herpes zoster vaccine production. AMB Express 2022; 12:58. [PMID: 35567723 PMCID: PMC9107214 DOI: 10.1186/s13568-022-01398-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 05/04/2022] [Indexed: 11/10/2022] Open
Abstract
Herpes zoster is caused by reactivation of the varicella zoster virus (VZV). Researching and developing a herpes zoster vaccine will help to decrease the incidence of herpes zoster. To increase the bioreactor productivity, a serum-free HEK293 cell perfusion process with adenovirus vector herpes zoster (rAd-HZ) vaccine production was developed efficiently using the design of experiment (DoE) method. First, serum-free media for HEK293 cells were screened in both batch and semi-perfusion culture modes. Then, three optimal media were employed in a medium mixture design to improve cell culture performance, and the 1:1 mixture of HEK293 medium and MCD293 medium (named HM293 medium) was identified as the optimal formulation. On the basis of the HM293 medium, the relationship of critical process parameters (CPPs), including the time of infection (TOI), multiplicity of infection (MOI), pH, and critical quality attributes (CQAs) (adenovirus titer (Titer), cell-specific virus yield (CSVY), adenovirus fold expansion (Fold)) of rAd-HZ production was investigated using the DoE approach. Furthermore, the robust setpoint and design space of these CPPs were explored. Finally, the rAd-HZ production process with parameters at a robust setpoint (TOI = 7.2 × 106 cells/mL, MOI = 3.7, and pH = 7.17) was successfully scaled-up to a 3-L bioreactor with an alternating tangential flow system, yielding an adenovirus titer of 3.0 × 1010 IFU/mL, a CSVY of 4167 IFU/cells, a Fold of 1117 at 2 days post infection (dpi). The DoE approach accelerated the development of a HEK293 serum-free medium and of a robust adenovirus production process.
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6
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Sacco SA, Tuckowski AM, Trenary I, Kraft L, Betenbaugh MJ, Young JD, Smith KD. Attenuation of glutamine synthetase selection marker improves product titer and reduces glutamine overflow in Chinese hamster ovary cells. Biotechnol Bioeng 2022; 119:1712-1727. [PMID: 35312045 DOI: 10.1002/bit.28084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 02/25/2022] [Accepted: 03/07/2022] [Indexed: 11/10/2022]
Abstract
The glutamine synthetase (GS) expression system is commonly used to ensure stable transgene integration and amplification in CHO host lines. Transfected cell populations are typically grown in the presence of the GS inhibitor, methionine sulfoximine (MSX), to further select for increased transgene copy number. However, high levels of GS activity produce excess glutamine. We hypothesized that attenuating the GS promoter while keeping the strong IgG promoter on the GS-IgG expression vector would result in a more efficient cellular metabolic phenotype. Herein, we characterized CHO cell lines expressing GS from either an attenuated promoter or an SV40 promoter and selected with/without MSX. CHO cells with the attenuated GS promoter had higher IgG specific productivity and lower glutamine production compared to cells with SV40-driven GS expression. Selection with MSX increased both specific productivity and glutamine production, regardless of GS promoter strength. 13 C metabolic flux analysis (MFA) was performed to further assess metabolic differences between these cell lines. Interestingly, central carbon metabolism was unaltered by the attenuated GS promoter while the fate of glutamate and glutamine varied depending on promoter strength and selection conditions. This study highlights the ability to optimize the GS expression system to improve IgG production and reduce wasteful glutamine overflow, without significantly altering central metabolism. Additionally, a detailed supplementary analysis of two "lactate runaway" reactors provides insight into the poorly understood phenomenon of excess lactate production by some CHO cell cultures. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Sarah A Sacco
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, TN, USA
| | - Angela M Tuckowski
- Biotherapeutics Development, Janssen Research and Development, Spring House, PA, USA.,Department of Cellular and Molecular Biology, University of Michigan, Ann Arbor, MI, USA
| | - Irina Trenary
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, TN, USA
| | - Lauren Kraft
- Biotherapeutics Development, Janssen Research and Development, Spring House, PA, USA
| | - Michael J Betenbaugh
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD, USA
| | - Jamey D Young
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, TN, USA.,Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, TN, USA
| | - Kevin D Smith
- Biotherapeutics Development, Janssen Research and Development, Spring House, PA, USA.,Asimov, 1325 Boylston St, Boston, MA, 02215
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7
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Lao González T, Ávalos Olivera I, Rodríguez-Mallon A. Mammalian Cell Culture as a Platform for Veterinary Vaccines. Methods Mol Biol 2022; 2411:37-62. [PMID: 34816397 DOI: 10.1007/978-1-0716-1888-2_2] [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: 06/13/2023]
Abstract
For more than three decades, mammalian cells have been the host par excellence for the recombinant protein production for therapeutic purposes in humans. Due to the high cost of media and other supplies used for cell growth, initially this expression platform was only used for the production of proteins of pharmaceutical importance including antibodies. However, large biotechnological companies that used this platform continued research to improve its technical and economic feasibility. The main qualitative improvement was obtained when individual cells could be cultured in a liquid medium similar to bacteria and yeast cultures. Another important innovation for growing cells in suspension was the improvement in chemically defined media that does not contain macromolecules; they were cheaper to culture as any other microbial media. These scientific milestones have reduced the cost of mammalian cell culture and their use in obtaining proteins for veterinary use. The ease of working with mammalian cell culture has permitted the use of this expression platform to produce active pharmaceutic ingredients for veterinary vaccines. In this chapter, the protocol to obtain recombinant mammalian cell lines will be described.
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Affiliation(s)
- Thailín Lao González
- Animal Biotechnology Department, Center for Genetic Engineering and Biotechnology, Havana, Cuba
| | - Ileanet Ávalos Olivera
- Animal Biotechnology Department, Center for Genetic Engineering and Biotechnology, Havana, Cuba
| | - Alina Rodríguez-Mallon
- Animal Biotechnology Department, Center for Genetic Engineering and Biotechnology, Havana, Cuba.
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9
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Van Lent J, Breukers J, Ven K, Ampofo L, Horta S, Pollet F, Imbrechts M, Geukens N, Vanhoorelbeke K, Declerck P, Lammertyn J. Miniaturized single-cell technologies for monoclonal antibody discovery. LAB ON A CHIP 2021; 21:3627-3654. [PMID: 34505611 DOI: 10.1039/d1lc00243k] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Antibodies (Abs) are among the most important class of biologicals, showcasing a high therapeutic and diagnostic value. In the global therapeutic Ab market, fully-human monoclonal Abs (FH-mAbs) are flourishing thanks to their low immunogenicity and high specificity. The rapidly emerging field of single-cell technologies has paved the way to efficiently discover mAbs by facilitating a fast screening of the antigen (Ag)-specificity and functionality of Abs expressed by B cells. This review summarizes the principles and challenges of the four key concepts to discover mAbs using these technologies, being confinement of single cells using either droplet microfluidics or microstructure arrays, identification of the cells of interest, retrieval of those cells and single-cell sequence determination required for mAb production. This review reveals the enormous potential for mix-and-matching of the above-mentioned strategies, which is illustrated by the plethora of established, highly integrated devices. Lastly, an outlook is given on the many opportunities and challenges that still lie ahead to fully exploit miniaturized single-cell technologies for mAb discovery.
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Affiliation(s)
- Julie Van Lent
- Department of Biosystems, Biosensors Group, KU Leuven, Leuven 3001, Belgium.
| | - Jolien Breukers
- Department of Biosystems, Biosensors Group, KU Leuven, Leuven 3001, Belgium.
| | - Karen Ven
- Department of Biosystems, Biosensors Group, KU Leuven, Leuven 3001, Belgium.
| | - Louanne Ampofo
- Department of Biosystems, Biosensors Group, KU Leuven, Leuven 3001, Belgium.
- Laboratory for Therapeutic and Diagnostic Antibodies, KU Leuven, Leuven 3000, Belgium
| | - Sara Horta
- Laboratory for Thrombosis Research, IRF Life Sciences, KU Leuven Campus Kulak Kortrijk, Kortrijk 8500, Belgium
| | - Francesca Pollet
- Department of Biosystems, Biosensors Group, KU Leuven, Leuven 3001, Belgium.
| | - Maya Imbrechts
- Laboratory for Therapeutic and Diagnostic Antibodies, KU Leuven, Leuven 3000, Belgium
- PharmAbs, The KU Leuven Antibody Center, KU Leuven, Leuven 3000, Belgium
| | - Nick Geukens
- PharmAbs, The KU Leuven Antibody Center, KU Leuven, Leuven 3000, Belgium
| | - Karen Vanhoorelbeke
- Laboratory for Thrombosis Research, IRF Life Sciences, KU Leuven Campus Kulak Kortrijk, Kortrijk 8500, Belgium
- PharmAbs, The KU Leuven Antibody Center, KU Leuven, Leuven 3000, Belgium
| | - Paul Declerck
- Laboratory for Therapeutic and Diagnostic Antibodies, KU Leuven, Leuven 3000, Belgium
- PharmAbs, The KU Leuven Antibody Center, KU Leuven, Leuven 3000, Belgium
| | - Jeroen Lammertyn
- Department of Biosystems, Biosensors Group, KU Leuven, Leuven 3001, Belgium.
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10
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A Stable CHO K1 Cell Line for Producing Recombinant Monoclonal Antibody Against TNF-α. Mol Biotechnol 2021; 63:828-839. [PMID: 34089481 DOI: 10.1007/s12033-021-00329-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 04/19/2021] [Indexed: 10/21/2022]
Abstract
Monoclonal antibodies (mAbs) are one of the most significant molecules in protein therapeutics. They are employed in the field of immunology, oncology and organ transplant. They have been also been employed for alleviating several bacterial and viral infections. Moreover, they have revolutionized the area of targeted therapy and improved the quality of treatments, as compared to other cytotoxic drugs and therapies. mAbs bind to specific molecules on the antigen and exhibit specificity towards that molecule, i.e. epitope. Thus, mAbs have immense opportunity to be explored for personalized therapy. The introduction of targeted mAb-based therapeutics has promoted many important scientific achievements in rheumatology. This has warranted additional investigations for developing newer mAb producing clones, to supplement the limited industrial production of certain mAb therapeutics. In this investigation, an integrative approach comprising optimized expression, selection and expansion was adopted to develop a mammalian cell line expressing mAb against TNF-α.The resulting stable clone is anticipated to serve as an economic alternative to the industrial clones, especially for research purposes. The clone was constructed for development of biosimilar of the highly valued therapeutic antibody, Humira.
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11
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Wu S, Rish AJ, Skomo A, Zhao Y, Drennen JK, Anderson CA. Rapid serum-free/suspension adaptation: Medium development using a definitive screening design for Chinese hamster ovary cells. Biotechnol Prog 2021; 37:e3154. [PMID: 33864359 DOI: 10.1002/btpr.3154] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 03/20/2021] [Accepted: 04/10/2021] [Indexed: 12/17/2022]
Abstract
The biopharmaceutical industry prefers to culture the mammalian cells in suspension with a serum-free media (SFM) due to improved productivity and process consistency. However, mammalian cells preferentially grow as adherent cells in a complete medium (CM) containing serum. Therefore, cells require adaptation from adherence in CM to suspension culture in SFM. This work proposes an adaptation method that includes media supplementation during the adaption of Chinese hamster ovary cells. As a result, the adaptation was accelerated compared to the traditional repetitive subculturing. Ca2+ /Mg2+ supplementation significantly reduced the doubling time compared to the adaptation without supplementation during the adaptation of adherent cells from 100% CM to 75% CM (p < 0.05). Furthermore, a definitive screening design (DSD) was applied to select essential nutrients during the adaptation from 10% CM to 0% CM. The main effects of Ca2+ and Dulbecco's modified essential medium (DMEM) were found significant to both viable cell density and viability at harvest. Additionally, the interaction term between Ca2+ and DMEM was found significant, which highlights the ability of DSD to capture interaction terms. Eventually, the media supplementation method resulted in adaptation SFM in 27 days, compared to the previously reported 66 days. Additionally, the membrane surface integrin expression was found significantly decreased when adherent cells were adapted to suspension. Moreover, the Ca2+ /Mg2+ supplementation correlated with faster integrin recovery after trypsinization. However, faster integrin recovery did not contribute to the accelerated cell growth when subculturing from 100% CM to 75% CM.
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Affiliation(s)
- Suyang Wu
- Graduate School for Pharmaceutical Sciences, Duquesne University, Pittsburgh, Pennsylvania, USA
| | - Adam J Rish
- Graduate School for Pharmaceutical Sciences, Duquesne University, Pittsburgh, Pennsylvania, USA
| | - Alec Skomo
- Rangos School of Health Sciences, Duquesne University, Pittsburgh, Pennsylvania, USA
| | - Yuxiang Zhao
- Graduate School for Pharmaceutical Sciences, Duquesne University, Pittsburgh, Pennsylvania, USA
| | - James K Drennen
- Graduate School for Pharmaceutical Sciences, Duquesne University, Pittsburgh, Pennsylvania, USA.,Duquesne Center for Pharmaceutical Technology, Duquesne University, Pittsburgh, Pennsylvania, USA
| | - Carl A Anderson
- Graduate School for Pharmaceutical Sciences, Duquesne University, Pittsburgh, Pennsylvania, USA.,Duquesne Center for Pharmaceutical Technology, Duquesne University, Pittsburgh, Pennsylvania, USA
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12
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Shurer CR, Head SE, Goudge MC, Paszek MJ. Mucin-coating technologies for protection and reduced aggregation of cellular production systems. Biotechnol Bioeng 2019; 116:994-1005. [PMID: 30636317 PMCID: PMC6763341 DOI: 10.1002/bit.26916] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 12/10/2018] [Accepted: 01/09/2019] [Indexed: 01/23/2023]
Abstract
Optimization of host-cell production systems with improved yield and production reliability is desired to meet the increasing demand for biologics with complex posttranslational modifications. Aggregation of suspension-adapted mammalian cells remains a significant problem that can limit the cellular density and per volume yield of bioreactors. Here, we propose a genetically encoded technology that directs the synthesis of antiadhesive and protective coatings on the cellular surface. Inspired by the natural ability of mucin glycoproteins to resist cellular adhesion and hydrate and protect cell and tissue surfaces, we genetically encode new cell-surface coatings through the fusion of engineered mucin domains to synthetic transmembrane anchors. Combined with appropriate expression systems, the mucin-coating technology directs the assembly of thick, highly hydrated barriers to strongly mitigate cell aggregation and protect cells in suspension against fluid shear stresses. The coating technology is demonstrated on suspension-adapted human 293-F cells, which resist clumping even in media formulations that otherwise would induce extreme cell aggregation and show improved performance over a commercially available anticlumping agent. The stable biopolymer coatings do not show deleterious effects on cell proliferation rate, efficiency of transient transfection with complementary DNAs, or recombinant protein expression. Overall, our mucin-coating technology and engineered cell lines have the potential to improve the single-cell growth and viability of suspended cells in bioreactors.
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Affiliation(s)
- Carolyn R. Shurer
- Robert Frederick Smith School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, NY 14853
| | - Shelby E. Head
- Robert Frederick Smith School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, NY 14853
| | - Marc C. Goudge
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY 14853
| | - Matthew J. Paszek
- Robert Frederick Smith School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, NY 14853
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY 14853
- Field of Biophysics, Cornell University, Ithaca, NY 14853
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13
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Torkashvand F, Mahboudi F, Vossoughi M, Fatemi E, Moosavi Basri SM, Heydari A, Vaziri B. Quantitative Proteomic Analysis of Cellular Responses to a Designed Amino Acid Feed in a Monoclonal Antibody
Producing Chinese Hamster Ovary Cell Line. IRANIAN BIOMEDICAL JOURNAL 2018. [PMID: 29678103 PMCID: PMC6305810 DOI: 10.29252/.22.6.385] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Background: Chinese hamster ovary (CHO) cell line is considered as the most common cell line in the biopharmaceutical industry because of its capability in performing efficient post-translational modifications and producing the recombinant proteins, which are similar to natural human proteins. The optimization of the upstream process via different feed strategies has a great impact on the target molecule expression and yield. Methods: To determine and understand the molecular events beneath the feed effects on the CHO cell, a label-free quantitative proteomic analysis was applied. The proteome changes followed by the addition of a designed amino acid feed to the monoclonal antibody producing CHO cell line culture medium were investigated. Results: The glutathione synthesis, the negative regulation of the programmed cell death, proteasomal catabolic process, and the endosomal transport pathway were up-regulated in the group fed with a designed amino acid feed compared to the control group. Conclusion: Our findings could be helpful to identify new targets for metabolic engineering.
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Affiliation(s)
- Fatemeh Torkashvand
- Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Fereidoun Mahboudi
- Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Manouchehr Vossoughi
- Department of Chemical and Petroleum Engineering, Biochemical and Bioenvironmental Research Center Sharif University of Technology, Tehran, Iran
| | - Elnaz Fatemi
- Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Seyed Masoud Moosavi Basri
- Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Amir Heydari
- Department of Chemical Engineering, University of Mohaghegh Ardabili, Ardabil, Iran
| | - Behrouz Vaziri
- Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
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14
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Caron AL, Biaggio RT, Swiech K. Strategies to Suspension Serum-Free Adaptation of Mammalian Cell Lines for Recombinant Glycoprotein Production. Methods Mol Biol 2018; 1674:75-85. [PMID: 28921429 DOI: 10.1007/978-1-4939-7312-5_6] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Serum-free suspension cultures are preferably required for recombinant protein production due to its readiness in upstream/downstream processing and scale-up, therefore increasing process productivity and competitiveness. This type of culture replaces traditional cell culturing as the presence of animal-derived components may introduce lot-a-lot variability and adventitious pathogens to the process. However, adapting cells to serum-free conditions is challenging, time-consuming, and cell line and medium dependent. In this chapter, we present different approaches that can be used to adapt mammalian cell lines from an anchorage-dependent serum supplemented culture to a suspension serum-free culture.
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Affiliation(s)
- Angelo Luis Caron
- Center for Cell-based Therapy CTC, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto-SP, Brazil
- School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Rafael Tagé Biaggio
- Center for Cell-based Therapy CTC, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto-SP, Brazil
- School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Kamilla Swiech
- Center for Cell-based Therapy CTC, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto-SP, Brazil.
- School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil.
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15
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Shridhar S, Klanert G, Auer N, Hernandez-Lopez I, Kańduła MM, Hackl M, Grillari J, Stralis-Pavese N, Kreil DP, Borth N. Transcriptomic changes in CHO cells after adaptation to suspension growth in protein-free medium analysed by a species-specific microarray. J Biotechnol 2017; 257:13-21. [DOI: 10.1016/j.jbiotec.2017.03.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Revised: 03/07/2017] [Accepted: 03/11/2017] [Indexed: 11/26/2022]
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16
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Gulce Iz S, Inevi MA, Metiner PS, Tamis DA, Kisbet N. A BioDesign Approach to Obtain High Yields of Biosimilars by Anti-apoptotic Cell Engineering: a Case Study to Increase the Production Yield of Anti-TNF Alpha Producing Recombinant CHO Cells. Appl Biochem Biotechnol 2017; 184:303-322. [PMID: 28685239 DOI: 10.1007/s12010-017-2540-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Accepted: 06/14/2017] [Indexed: 10/19/2022]
Abstract
Recent developments in medical biotechnology have facilitated to enhance the production of monoclonal antibodies (mAbs) and recombinant proteins in mammalian cells. Human mAbs for clinical applications have focused on three areas, particularly cancer, immunological disorders, and infectious diseases. Tumor necrosis factor alpha (TNF-α), which has both proinflammatory and immunoregulatory functions, is an important target in biopharmaceutical industry. In this study, a humanized anti-TNF-α mAb producing stable CHO cell line which produces a biosimilar of Humira (adalimumab) was used. Adalimumab is a fully human anti-TNF mAb among the top-selling mAb products in recent years as a biosimilar. Products from mammalian cell bioprocesses are a derivative of cell viability and metabolism, which is mainly disrupted by cell death in bioreactors. Thus, different strategies are used to increase the product yield. Suppression of apoptosis, also called anti-apoptotic cell engineering, is the most remarkable strategy to enhance lifetime of cells for a longer production period. In fact, using anti-apoptotic cell engineering as a BioDesign approach was inspired by nature; nature gives prolonged life span to some cells like stem cells, tumor cells, and memory B and T cells, and researchers have been using this strategy for different purposes. In this study, as a biomimicry approach, anti-apoptotic cell engineering was used to increase the anti-TNF-α mAb production from the humanized anti-TNF-α mAb producing stable CHO cell line by Bcl-xL anti-apoptotic protein. It was shown that transient transfection of CHO cells by the Bcl-xL anti-apoptotic protein expressing plasmid prolonged the cell survival rate and protected cells from apoptosis. The transient expression of Bcl-xL using CHO cells enhanced the anti-TNF-α production. The production of anti-TNF-α in CHO cells was increased up to 215 mg/L with an increase of 160% after cells were transfected with Bcl-xL expressing plasmid with polyethylenimine (PEI) reagent at the ratio of 1:6 (DNA:PEI). In conclusion, the anti-apoptotic efficacy of the Bcl-xL expressing plasmid in humanized anti-TNF-α MAb producing stable CHO cells is compatible with curative effect for high efficiency recombinant protein production. Thus, this model can be used for large-scale production of biosimilars through transient Bcl-xL gene expression as a cost-effective method.
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Affiliation(s)
- Sultan Gulce Iz
- Department of Bioengineering, Faculty of Engineering, Ege University, 35100, Izmir, Bornova, Turkey.
| | - Muge Anil Inevi
- Department of Bioengineering, Faculty of Engineering, Ege University, 35100, Izmir, Bornova, Turkey
- Department of Biotechnology and Bioengineering, Izmir Institute of Technology, 35430, Izmir, Urla, Turkey
| | - Pelin Saglam Metiner
- Department of Bioengineering, Faculty of Engineering, Ege University, 35100, Izmir, Bornova, Turkey
| | - Duygu Ayyildiz Tamis
- Department of Bioengineering, Faculty of Engineering, Ege University, 35100, Izmir, Bornova, Turkey
- Turgut Ilaclari A.S, 34394, Istanbul, Besiktas, Turkey
| | - Nazli Kisbet
- Department of Bioengineering, Faculty of Engineering, Ege University, 35100, Izmir, Bornova, Turkey
- GlaxoSmithKline, 34394, Istanbul, Besiktas, Turkey
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17
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Razaghi A, Owens L, Heimann K. Review of the recombinant human interferon gamma as an immunotherapeutic: Impacts of production platforms and glycosylation. J Biotechnol 2016; 240:48-60. [DOI: 10.1016/j.jbiotec.2016.10.022] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Revised: 10/21/2016] [Accepted: 10/24/2016] [Indexed: 12/11/2022]
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18
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Jukić S, Bubenik D, Pavlović N, Tušek AJ, Srček VG. Adaptation of CHO cells in serum-free conditions for erythropoietin production: Application of EVOP technique for process optimization. Biotechnol Appl Biochem 2016; 63:633-641. [DOI: 10.1002/bab.1468] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Accepted: 12/07/2015] [Indexed: 01/17/2023]
Affiliation(s)
| | | | | | - Ana Jurinjak Tušek
- Faculty of Food Technology and Biotechnology; University of Zagreb; Zagreb Croatia
| | - Višnja Gaurina Srček
- Faculty of Food Technology and Biotechnology; University of Zagreb; Zagreb Croatia
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19
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Walther CG, Whitfield R, James DC. Importance of Interaction between Integrin and Actin Cytoskeleton in Suspension Adaptation of CHO cells. Appl Biochem Biotechnol 2015; 178:1286-302. [PMID: 26679704 PMCID: PMC4858566 DOI: 10.1007/s12010-015-1945-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2015] [Accepted: 11/30/2015] [Indexed: 12/23/2022]
Abstract
The biopharmaceutical production process relies upon mammalian cell technology where single cells proliferate in suspension in a chemically defined synthetic environment. This environment lacks exogenous growth factors, usually contributing to proliferation of fibroblastic cell types such as Chinese hamster ovary (CHO) cells. Use of CHO cells for production hence requires a lengthy 'adaptation' process to select clones capable of proliferation as single cells in suspension. The underlying molecular changes permitting proliferation in suspension are not known. Comparison of the non-suspension-adapted clone CHO-AD and a suspension-adapted propriety cell line CHO-SA by flow cytometric analysis revealed a highly variable bi-modal expression pattern for cell-to-cell contact proteins in contrast to the expression pattern seen for integrins. Those have a uni-modal expression on suspension and adherent cells. Integrins showed a conformation distinguished by regularly distributed clusters forming a sphere on the cell membrane of suspension-adapted cells. Actin cytoskeleton analysis revealed reorganisation from the typical fibrillar morphology found in adherent cells to an enforced spherical subcortical actin sheath in suspension cells. The uni-modal expression and specific clustering of integrins could be confirmed for CHO-S, another suspension cell line. Cytochalasin D treatment resulted in breakdown of the actin sheath and the sphere-like integrin conformation demonstrating the link between integrins and actin in suspension-adapted CHO cells. The data demonstrates the importance of signalling changes, leading to an integrin rearrangement on the cell surface, and the necessity of the reinforcement of the actin cytoskeleton for proliferation in suspension conditions.
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Affiliation(s)
- Christa G Walther
- Department of Molecular Biology and Biotechnology, University of Sheffield, Firth Court, Western Bank, Sheffield, S10 2TN, UK.
- Chemical and Biological Engineering, University of Sheffield, Sir Robert Hadfield Building, Mappin Street, Sheffield, S1 3JD, UK.
| | - Robert Whitfield
- Department of Applied Sciences and Health, Coventry University, James Starley Building, Coventry, CV1 5FB, UK
- Chemical and Biological Engineering, University of Sheffield, Sir Robert Hadfield Building, Mappin Street, Sheffield, S1 3JD, UK
| | - David C James
- Chemical and Biological Engineering, University of Sheffield, Sir Robert Hadfield Building, Mappin Street, Sheffield, S1 3JD, UK
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20
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Biosensors for waterborne viruses: Detection and removal. Biochimie 2015; 115:144-54. [DOI: 10.1016/j.biochi.2015.05.010] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2014] [Accepted: 05/14/2015] [Indexed: 01/20/2023]
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21
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Kluge S, Benndorf D, Genzel Y, Scharfenberg K, Rapp E, Reichl U. Monitoring changes in proteome during stepwise adaptation of a MDCK cell line from adherence to growth in suspension. Vaccine 2015; 33:4269-80. [DOI: 10.1016/j.vaccine.2015.02.077] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Revised: 01/30/2015] [Accepted: 02/16/2015] [Indexed: 11/16/2022]
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22
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Recent advances in optimal cell banking of mammalian cells for biopharmaceutical production. ACTA ACUST UNITED AC 2015. [DOI: 10.4155/pbp.14.46] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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23
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Farrell A, McLoughlin N, Milne JJ, Marison IW, Bones J. Application of Multi-Omics Techniques for Bioprocess Design and Optimization in Chinese Hamster Ovary Cells. J Proteome Res 2014; 13:3144-59. [DOI: 10.1021/pr500219b] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Amy Farrell
- Characterisation
and Comparability Laboratory, NIBRT − The National Institute for Bioprocessing Research and Training, Foster Avenue, Mount Merrion, Blackrock, Co. Dublin, Ireland
| | - Niaobh McLoughlin
- Characterisation
and Comparability Laboratory, NIBRT − The National Institute for Bioprocessing Research and Training, Foster Avenue, Mount Merrion, Blackrock, Co. Dublin, Ireland
| | - John J. Milne
- Characterisation
and Comparability Laboratory, NIBRT − The National Institute for Bioprocessing Research and Training, Foster Avenue, Mount Merrion, Blackrock, Co. Dublin, Ireland
| | - Ian W. Marison
- Laboratory
of Integrated Bioprocessing, Dublin City University, Glasnevin, Dublin 9, Ireland
| | - Jonathan Bones
- Characterisation
and Comparability Laboratory, NIBRT − The National Institute for Bioprocessing Research and Training, Foster Avenue, Mount Merrion, Blackrock, Co. Dublin, Ireland
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24
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Spearman M, Lodewyks C, Richmond M, Butler M. The bioactivity and fractionation of peptide hydrolysates in cultures of CHO cells. Biotechnol Prog 2014; 30:584-93. [DOI: 10.1002/btpr.1930] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Revised: 05/13/2014] [Indexed: 12/13/2022]
Affiliation(s)
- Maureen Spearman
- Dept. of Microbiology; University of Manitoba; Winnipeg MB R3T 2N2 Canada
| | - Carly Lodewyks
- Dept. of Microbiology; University of Manitoba; Winnipeg MB R3T 2N2 Canada
| | - Meika Richmond
- Dept. of Microbiology; University of Manitoba; Winnipeg MB R3T 2N2 Canada
| | - Michael Butler
- Dept. of Microbiology; University of Manitoba; Winnipeg MB R3T 2N2 Canada
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