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Biomanufacturing Recombinantly Expressed Cripto-1 Protein in Anchorage-Dependent Mammalian Cells Growing in Suspension Bioreactors within a Three-Dimensional Hydrogel Microcarrier. Gels 2023; 9:gels9030243. [PMID: 36975692 PMCID: PMC10048735 DOI: 10.3390/gels9030243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 03/05/2023] [Accepted: 03/14/2023] [Indexed: 03/22/2023] Open
Abstract
Biotherapeutic soluble proteins that are recombinantly expressed in mammalian cells can pose a challenge when biomanufacturing in three-dimensional (3D) suspension culture systems. Herein, we tested a 3D hydrogel microcarrier for a suspension culture of HEK293 cells overexpressing recombinant Cripto-1 protein. Cripto-1 is an extracellular protein that is involved in developmental processes and has recently been reported to have therapeutic effects in alleviating muscle injury and diseases by regulating muscle regeneration through satellite cell progression toward the myogenic lineage. Cripto-overexpressing HEK293 cell lines were cultured in microcarriers made from poly (ethylene glycol)-fibrinogen (PF) hydrogels, which provided the 3D substrate for cell growth and protein production in stirred bioreactors. The PF microcarriers were designed with sufficient strength to resist hydrodynamic deterioration and biodegradation associated with suspension culture in stirred bioreactors for up to 21 days. The yield of purified Cripto-1 obtained using the 3D PF microcarriers was significantly higher than that obtained with a two-dimensional (2D) culture system. The bioactivity of the 3D-produced Cripto-1 was equivalent to commercially available Cripto-1 in terms of an ELISA binding assay, a muscle cell proliferation assay, and a myogenic differentiation assay. Taken together, these data indicate that 3D microcarriers made from PF can be combined with mammalian cell expression systems to improve the biomanufacturing of protein-based therapeutics for muscle injuries.
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Cha JM, Hwang YS, Kang DK, Lee J, Cooper ES, Mantalaris A. Development of a Novel Perfusion Rotating Wall Vessel Bioreactor with Ultrasound Stimulation for Mass-Production of Mineralized Tissue Constructs. Tissue Eng Regen Med 2022; 19:739-754. [PMID: 35532736 PMCID: PMC9294093 DOI: 10.1007/s13770-022-00447-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Revised: 02/06/2022] [Accepted: 02/20/2022] [Indexed: 10/18/2022] Open
Abstract
BACKGROUND As stem cells are considered a promising cell source for tissue engineering, many culture strategies have been extensively studied to generate in vitro stem cell-based tissue constructs. However, most approaches using conventional tissue culture plates are limited by the lack of biological relevance in stem cell microenvironments required for neotissue formation. In this study, a novel perfusion rotating wall vessel (RWV) bioreactor was developed for mass-production of stem cell-based 3D tissue constructs. METHODS An automated RWV bioreactor was fabricated, which is capable of controlling continuous medium perfusion, highly efficient gas exchange with surrounding air, as well as low-intensity pulsed ultrasound (LIPUS) stimulation. Embryonic stem cells encapsulated in alginate/gelatin hydrogel were cultured in the osteogenic medium by using our bioreactor system. Cellular viability, growth kinetics, and osteogenesis/mineralization were thoroughly evaluated, and culture media were profiled at real time. The in vivo efficacy was examined by a rabbit cranial defect model. RESULTS Our bioreactor successfully maintained the optimal culture environments for stem cell proliferation, osteogenic differentiation, and mineralized tissue formation during the culture period. The mineralized tissue constructs produced by our bioreactor demonstrated higher void filling efficacy in the large bone defects compared to the group implanted with hydrogel beads only. In addition, the LIPUS modules mounted on our bioreactor successfully reached higher mineralization of the tissue constructs compared to the groups without LIPUS stimulation. CONCLUSION This study suggests an effective biomanufacturing strategy for mass-production of implantable mineralized tissue constructs from stem cells that could be applicable to future clinical practice.
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Borys BS, Dang T, So T, Rohani L, Revay T, Walsh T, Thompson M, Argiropoulos B, Rancourt DE, Jung S, Hashimura Y, Lee B, Kallos MS. Overcoming bioprocess bottlenecks in the large-scale expansion of high-quality hiPSC aggregates in vertical-wheel stirred suspension bioreactors. Stem Cell Res Ther 2021; 12:55. [PMID: 33436078 PMCID: PMC7805206 DOI: 10.1186/s13287-020-02109-4] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Accepted: 12/21/2020] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Human induced pluripotent stem cells (hiPSCs) hold enormous promise in accelerating breakthroughs in understanding human development, drug screening, disease modeling, and cell and gene therapies. Their potential, however, has been bottlenecked in a mostly laboratory setting due to bioprocess challenges in the scale-up of large quantities of high-quality cells for clinical and manufacturing purposes. While several studies have investigated the production of hiPSCs in bioreactors, the use of conventional horizontal-impeller, paddle, and rocking-wave mixing mechanisms have demonstrated unfavorable hydrodynamic environments for hiPSC growth and quality maintenance. This study focused on using computational fluid dynamics (CFD) modeling to aid in characterizing and optimizing the use of vertical-wheel bioreactors for hiPSC production. METHODS The vertical-wheel bioreactor was modeled with CFD simulation software Fluent at agitation rates between 20 and 100 rpm. These models produced fluid flow patterns that mapped out a hydrodynamic environment to guide in the development of hiPSC inoculation and in-vessel aggregate dissociation protocols. The effect of single-cell inoculation on aggregate formation and growth was tested at select CFD-modeled agitation rates and feeding regimes in the vertical-wheel bioreactor. An in-vessel dissociation protocol was developed through the testing of various proteolytic enzymes and agitation exposure times. RESULTS CFD modeling demonstrated the unique flow pattern and homogeneous distribution of hydrodynamic forces produced in the vertical-wheel bioreactor, making it the opportune environment for systematic bioprocess optimization of hiPSC expansion. We developed a scalable, single-cell inoculation protocol for the culture of hiPSCs as aggregates in vertical-wheel bioreactors, achieving over 30-fold expansion in 6 days without sacrificing cell quality. We have also provided the first published protocol for in-vessel hiPSC aggregate dissociation, permitting the entire bioreactor volume to be harvested into single cells for serial passaging into larger scale reactors. Importantly, the cells harvested and re-inoculated into scaled-up vertical-wheel bioreactors not only maintained consistent growth kinetics, they maintained a normal karyotype and pluripotent characterization and function. CONCLUSIONS Taken together, these protocols provide a feasible solution for the culture of high-quality hiPSCs at a clinical and manufacturing scale by overcoming some of the major documented bioprocess bottlenecks.
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Affiliation(s)
- Breanna S Borys
- Pharmaceutical Production Research Facility, Schulich School of Engineering, University of Calgary, 2500 University Dr. NW, Calgary, AB, T2N 1N4, Canada
- Biomedical Engineering Graduate Program, University of Calgary, 2500 University Dr. NW, Calgary, AB, T2N 1N4, Canada
- Department of Chemical and Petroleum Engineering, Schulich School of Engineering, University of Calgary, 2500 University Dr. NW, Calgary, AB, T2N 1N4, Canada
| | - Tiffany Dang
- Pharmaceutical Production Research Facility, Schulich School of Engineering, University of Calgary, 2500 University Dr. NW, Calgary, AB, T2N 1N4, Canada
- Biomedical Engineering Graduate Program, University of Calgary, 2500 University Dr. NW, Calgary, AB, T2N 1N4, Canada
- Department of Chemical and Petroleum Engineering, Schulich School of Engineering, University of Calgary, 2500 University Dr. NW, Calgary, AB, T2N 1N4, Canada
| | - Tania So
- Pharmaceutical Production Research Facility, Schulich School of Engineering, University of Calgary, 2500 University Dr. NW, Calgary, AB, T2N 1N4, Canada
- Department of Chemical and Petroleum Engineering, Schulich School of Engineering, University of Calgary, 2500 University Dr. NW, Calgary, AB, T2N 1N4, Canada
| | - Leili Rohani
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, 3330 Hospital Dr. NW, Calgary, AB, T2N 4N1, Canada
| | - Tamas Revay
- Department of Medical Genetics, Alberta Health Services, Alberta Children's Hospital, 28 Oki Drive, Calgary, AB, T3B 6A8, Canada
| | - Tylor Walsh
- Pharmaceutical Production Research Facility, Schulich School of Engineering, University of Calgary, 2500 University Dr. NW, Calgary, AB, T2N 1N4, Canada
- Biomedical Engineering Graduate Program, University of Calgary, 2500 University Dr. NW, Calgary, AB, T2N 1N4, Canada
- Department of Chemical and Petroleum Engineering, Schulich School of Engineering, University of Calgary, 2500 University Dr. NW, Calgary, AB, T2N 1N4, Canada
| | - Madalynn Thompson
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, 3330 Hospital Dr. NW, Calgary, AB, T2N 4N1, Canada
| | - Bob Argiropoulos
- Department of Medical Genetics, Alberta Health Services, Alberta Children's Hospital, 28 Oki Drive, Calgary, AB, T3B 6A8, Canada
| | - Derrick E Rancourt
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, 3330 Hospital Dr. NW, Calgary, AB, T2N 4N1, Canada
| | - Sunghoon Jung
- PBS Biotech Inc, 1183 Calle Suerte, Camarillo, CA, 93012, USA
| | - Yas Hashimura
- PBS Biotech Inc, 1183 Calle Suerte, Camarillo, CA, 93012, USA
| | - Brian Lee
- PBS Biotech Inc, 1183 Calle Suerte, Camarillo, CA, 93012, USA
| | - Michael S Kallos
- Pharmaceutical Production Research Facility, Schulich School of Engineering, University of Calgary, 2500 University Dr. NW, Calgary, AB, T2N 1N4, Canada.
- Biomedical Engineering Graduate Program, University of Calgary, 2500 University Dr. NW, Calgary, AB, T2N 1N4, Canada.
- Department of Chemical and Petroleum Engineering, Schulich School of Engineering, University of Calgary, 2500 University Dr. NW, Calgary, AB, T2N 1N4, Canada.
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Polanco A, Kuang B, Yoon S. Bioprocess Technologies that Preserve the Quality of iPSCs. Trends Biotechnol 2020; 38:1128-1140. [PMID: 32941792 DOI: 10.1016/j.tibtech.2020.03.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 03/10/2020] [Accepted: 03/11/2020] [Indexed: 12/16/2022]
Abstract
Large-scale production of induced pluripotent stem cells (iPSCs) is essential for the treatment of a variety of clinical indications. However, culturing enough iPSCs for clinical applications is problematic due to their sensitive pluripotent state and dependence on a supporting matrix. Developing stem cell bioprocessing strategies that are scalable and meet clinical needs requires incorporating methods that measure and monitor intrinsic markers of cell differentiation state, developmental status, and viability in real time. In addition, proper cell culture modalities that nurture the growth of high-quality stem cells in suspension are critical for industrial scale-up. In this review, we present an overview of cell culture media, suspension modalities, and monitoring techniques that preserve the quality and pluripotency of iPSCs during initiation, expansion, and manufacturing.
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Affiliation(s)
- Ashli Polanco
- Department of Chemical Engineering, University of Massachusetts Lowell, Lowell, MA, USA
| | - Bingyu Kuang
- Department of Chemical Engineering, University of Massachusetts Lowell, Lowell, MA, USA
| | - Seongkyu Yoon
- Department of Chemical Engineering, University of Massachusetts Lowell, Lowell, MA, USA.
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5
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Huang L, Abdalla AM, Xiao L, Yang G. Biopolymer-Based Microcarriers for Three-Dimensional Cell Culture and Engineered Tissue Formation. Int J Mol Sci 2020; 21:E1895. [PMID: 32164316 PMCID: PMC7084715 DOI: 10.3390/ijms21051895] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 03/01/2020] [Accepted: 03/08/2020] [Indexed: 12/20/2022] Open
Abstract
The concept of three-dimensional (3D) cell culture has been proposed to maintain cellular morphology and function as in vivo. Among different approaches for 3D cell culture, microcarrier technology provides a promising tool for cell adhesion, proliferation, and cellular interactions in 3D space mimicking the in vivo microenvironment. In particular, microcarriers based on biopolymers have been widely investigated because of their superior biocompatibility and biodegradability. Moreover, through bottom-up assembly, microcarriers have opened a bright door for fabricating engineered tissues, which is one of the cutting-edge topics in tissue engineering and regeneration medicine. This review takes an in-depth look into the recent advancements of microcarriers based on biopolymers-especially polysaccharides such as chitosan, chitin, cellulose, hyaluronic acid, alginate, and laminarin-for 3D cell culture and the fabrication of engineered tissues based on them. The current limitations and potential strategies were also discussed to shed some light on future directions.
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Affiliation(s)
- Lixia Huang
- Hubei Key Laboratory of Purification and Application of Plant Anti-Cancer Active Ingredients, School of Chemistry and Life Sciences, Hubei University of Education, Wuhan 430205, China;
| | - Ahmed M.E. Abdalla
- Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, China;
| | - Lin Xiao
- Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, China;
| | - Guang Yang
- Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, China;
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6
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Newland B, Ehret F, Hoppe F, Eigel D, Pette D, Newland H, Welzel PB, Kempermann G, Werner C. Macroporous heparin-based microcarriers allow long-term 3D culture and differentiation of neural precursor cells. Biomaterials 2020; 230:119540. [DOI: 10.1016/j.biomaterials.2019.119540] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 10/03/2019] [Accepted: 10/08/2019] [Indexed: 01/14/2023]
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7
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Baakdhah T, van der Kooy D. Expansion of retinal stem cells and their progeny using cell microcarriers in a bioreactor. Biotechnol Prog 2019; 35:e2800. [DOI: 10.1002/btpr.2800] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 01/10/2019] [Accepted: 02/24/2019] [Indexed: 12/11/2022]
Affiliation(s)
- Tahani Baakdhah
- Institute of Medical ScienceUniversity of Toronto Toronto Ontario Canada
| | - Derek van der Kooy
- Institute of Medical ScienceUniversity of Toronto Toronto Ontario Canada
- Department of Molecular GeneticsUniversity of Toronto Toronto Ontario Canada
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8
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Modulating cell state to enhance suspension expansion of human pluripotent stem cells. Proc Natl Acad Sci U S A 2018; 115:6369-6374. [PMID: 29866848 PMCID: PMC6016797 DOI: 10.1073/pnas.1714099115] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Efficient manufacturing is critical for the translation of cell-based therapies to clinical applications. To date, high-yield expansion of human pluripotent stem cells (hPSC) in suspension bioreactors has not been reported. Here, we present a strategy to shift suspension-grown hPSC to a high-yield state without compromising their ability to differentiate to all three germ layers. In this new state, hPSC expand to densities 5.7 ± 0.2-fold higher than conventional hPSC each passage in suspension bioreactors. High-density suspension cultures enable process intensification, cost reduction, and more efficient manufacturing. This work advances cell-state engineering as a valuable tool to overcome current challenges in therapeutic cell production and processing. The development of cell-based therapies to replace missing or damaged tissues within the body or generate cells with a unique biological activity requires a reliable and accessible source of cells. Human pluripotent stem cells (hPSC) have emerged as a strong candidate cell source capable of extended propagation in vitro and differentiation to clinically relevant cell types. However, the application of hPSC in cell-based therapies requires overcoming yield limitations in large-scale hPSC manufacturing. We explored methods to convert hPSC to alternative states of pluripotency with advantageous bioprocessing properties, identifying a suspension-based small-molecule and cytokine combination that supports increased single-cell survival efficiency, faster growth rates, higher densities, and greater expansion than control hPSC cultures. ERK inhibition was found to be essential for conversion to this altered state, but once converted, ERK inhibition led to a loss of pluripotent phenotype in suspension. The resulting suspension medium formulation enabled hPSC suspension yields 5.7 ± 0.2-fold greater than conventional hPSC in 6 d, for at least five passages. Treated cells remained pluripotent, karyotypically normal, and capable of differentiating into all germ layers. Treated cells could also be integrated into directed differentiated strategies as demonstrated by the generation of pancreatic progenitors (NKX6.1+/PDX1+ cells). Enhanced suspension-yield hPSC displayed higher oxidative metabolism and altered expression of adhesion-related genes. The enhanced bioprocess properties of this alternative pluripotent state provide a strategy to overcome cell manufacturing limitations of hPSC.
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9
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Weber C, Freimark D, Pörtner R, Pino-Grace P, Pohl S, Wallrapp C, Geigle P, Czermak P. Expansion of Human Mesenchymal Stem Cells in a Fixed-Bed Bioreactor System Based on Non-Porous Glass Carrier – Part B: Modeling and Scale-up of the System. Int J Artif Organs 2018. [DOI: 10.1177/039139881003301103] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Human mesenchymal stem cells (hMSC) are a promising cell source for the manufacturing of cell therapy or tissue-engineered implants. In part A of this publication a fixed-bed bioreactor system based on non-porous borosilicate glass spheres and procedures for the automated expansion of hMSC with high yield and vitality was introduced. Part B of this study deals with the modeling of the process in order to transfer the bioreactor system from the laboratory to the production scale. Relevant model parameters were obtained by fitting them to the experimental data of hMSC-TERT cultivations in scales up to 300 cm3. Scale-up calculations were carried out exemplarily for a target cell number of twenty billion cells.
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Affiliation(s)
- Christian Weber
- Institute of Biopharmaceutical Technology, University of Applied Sciences Giessen-Friedberg, Giessen - Germany
| | - Denise Freimark
- Institute of Biopharmaceutical Technology, University of Applied Sciences Giessen-Friedberg, Giessen - Germany
| | - Ralf Pörtner
- Institute of Bioprocess and Biosystems Engineering, University of Technology, Hamburg - Germany
| | - Pablo Pino-Grace
- Institute of Biopharmaceutical Technology, University of Applied Sciences Giessen-Friedberg, Giessen - Germany
| | - Sebastian Pohl
- Institute of Biopharmaceutical Technology, University of Applied Sciences Giessen-Friedberg, Giessen - Germany
| | | | | | - Peter Czermak
- Institute of Biopharmaceutical Technology, University of Applied Sciences Giessen-Friedberg, Giessen - Germany
- Department of Chemical Engineering, Kansas State University, Manhattan, KS - USA
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10
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Goldshmid R, Seliktar D. Hydrogel Modulus Affects Proliferation Rate and Pluripotency of Human Mesenchymal Stem Cells Grown in Three-Dimensional Culture. ACS Biomater Sci Eng 2017; 3:3433-3446. [DOI: 10.1021/acsbiomaterials.7b00266] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Revital Goldshmid
- The
Faculty of Biomedical Engineering and ‡The Interdisciplinary Program for
Biotechnology, Technion-Israel Institute of Technology, Haifa 32000, Israel
| | - Dror Seliktar
- The
Faculty of Biomedical Engineering and ‡The Interdisciplinary Program for
Biotechnology, Technion-Israel Institute of Technology, Haifa 32000, Israel
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11
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Tan YJ, Tan X, Yeong WY, Tor SB. Hybrid microscaffold-based 3D bioprinting of multi-cellular constructs with high compressive strength: A new biofabrication strategy. Sci Rep 2016; 6:39140. [PMID: 27966623 PMCID: PMC5155425 DOI: 10.1038/srep39140] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Accepted: 11/17/2016] [Indexed: 12/27/2022] Open
Abstract
A hybrid 3D bioprinting approach using porous microscaffolds and extrusion-based printing method is presented. Bioink constitutes of cell-laden poly(D,L-lactic-co-glycolic acid) (PLGA) porous microspheres with thin encapsulation of agarose-collagen composite hydrogel (AC hydrogel). Highly porous microspheres enable cells to adhere and proliferate before printing. Meanwhile, AC hydrogel allows a smooth delivery of cell-laden microspheres (CLMs), with immediate gelation of construct upon printing on cold build platform. Collagen fibrils were formed in the AC hydrogel during culture at body temperature, improving the cell affinity and spreading compared to pure agarose hydrogel. Cells were proven to proliferate in the bioink and the bioprinted construct. High cell viability up to 14 days was observed. The compressive strength of the bioink is more than 100 times superior to those of pure AC hydrogel. A potential alternative in tissue engineering of tissue replacements and biological models is made possible by combining the advantages of the conventional solid scaffolds with the new 3D bioprinting technology.
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Affiliation(s)
- Yu Jun Tan
- Singapore Centre for 3D Printing, School of Mechanical &Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798 Singapore
| | - Xipeng Tan
- Singapore Centre for 3D Printing, School of Mechanical &Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798 Singapore
| | - Wai Yee Yeong
- Singapore Centre for 3D Printing, School of Mechanical &Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798 Singapore
| | - Shu Beng Tor
- Singapore Centre for 3D Printing, School of Mechanical &Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798 Singapore
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12
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Microcarrier-based platforms for in vitro expansion and differentiation of human pluripotent stem cells in bioreactor culture systems. J Biotechnol 2016; 234:71-82. [PMID: 27480342 DOI: 10.1016/j.jbiotec.2016.07.023] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Revised: 07/26/2016] [Accepted: 07/28/2016] [Indexed: 01/15/2023]
Abstract
Human pluripotent stem cells (hPSC) have attracted a great attention as an unlimited source of cells for cell therapies and other in vitro biomedical applications such as drug screening, toxicology assays and disease modeling. The implementation of scalable culture platforms for the large-scale production of hPSC and their derivatives is mandatory to fulfill the requirement of obtaining large numbers of cells for these applications. Microcarrier technology has been emerging as an effective approach for the large scale ex vivo hPSC expansion and differentiation. This review presents recent achievements in hPSC microcarrier-based culture systems and discusses the crucial aspects that influence the performance of these culture platforms. Recent progress includes addressing chemically-defined culture conditions for manufacturing of hPSC and their derivatives, with the development of xeno-free media and microcarrier coatings to meet good manufacturing practice (GMP) quality requirements. Finally, examples of integrated platforms including hPSC expansion and directed differentiation to specific lineages are also presented in this review.
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13
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Ma S, Lin Y, Deng B, Zheng Y, Hao C, He R, Ding F. Endothelial bioreactor system ameliorates multiple organ dysfunction in septic rats. Intensive Care Med Exp 2016; 4:23. [PMID: 27447715 PMCID: PMC4958089 DOI: 10.1186/s40635-016-0097-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Accepted: 07/13/2016] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND The endothelium is a potentially valuable target for sepsis therapy. We have previously studied an extracorporeal endothelial cell therapy system, called the endothelial bioreactor (EBR), which prolonged the survival time of endotoxemia sepsis in swine. To further study of the therapeutic effects and possible mechanisms, we established a miniature EBR system for septic rats induced by cecal ligation and puncture (CLP). METHODS In the miniature EBR system, the extracorporeal circulation first passed through a mini-hemofilter, and the ultrafiltrate (UF) was separated, then the UF passed through an EBR (a 1-mL cartridge containing approximately 2 × 10(6) endothelial cells grown on microcarriers) and interact with endothelial cells. Eighteen hours after CLP, the rats were treated for 4 h with this extracorporeal system containing either endothelial cells (EBR group) or no cells (sham EBR group). Physiologic and biochemical parameters, cytokines, endothelial functions, and 7-day survival time were monitored. In vitro, the pulmonary endothelial cells of the septic rats were treated with the EBR system and the resulting changes in their functions were monitored. RESULTS The EBR system ameliorated CLP-induced sepsis compared with the sham EBR system. After CLP, the 7-day survival rate of sham-treated rats was only 25.0 %, while in the EBR-treated group, it increased to 57.1 % (p = 0.04). The EBR system protected the liver and renal function and ameliorated the kidney and lung injury. Meanwhile, this therapy reduced pulmonary vascular leakage and alleviated the infiltration of inflammatory cells in the lungs, especially neutrophils. Furthermore, after the EBR treatment both in vivo and in vitro, the expression of intercellular adhesion molecule-1 and the secretion of CXCL1 and CXCL2 of pulmonary endothelium decreased, which helped to alleviate the adhesion and chemotaxis of neutrophils. In addition, the EBR system decreased CD11b expression and intracellular free calcium level of peripheral blood neutrophils, modulated the activation of these neutrophils. CONCLUSIONS The EBR system significantly ameliorated CLP-induced sepsis and improved survival and organ functions. Compared with the sham EBR system, this extracorporeal endothelial therapy may be involved in modulating the function of pulmonary endothelial cells, reducing the adhesion and chemotaxis of neutrophil, and modulating the activation of peripheral blood neutrophils.
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Affiliation(s)
- Shuai Ma
- Division of Nephrology & Unit of Critical Nephrology, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiaotong University, 639 Zhizaoju Road, Shanghai, 200011, China.,Division of Nephrology, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - Yuli Lin
- Department of Immunology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Bo Deng
- Division of Nephrology & Unit of Critical Nephrology, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiaotong University, 639 Zhizaoju Road, Shanghai, 200011, China.,Division of Nephrology, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - Yin Zheng
- Division of Nephrology & Unit of Critical Nephrology, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiaotong University, 639 Zhizaoju Road, Shanghai, 200011, China.,Division of Nephrology, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - Chuanming Hao
- Division of Nephrology, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - Rui He
- Department of Immunology, Shanghai Medical College, Fudan University, Shanghai, 200032, China.
| | - Feng Ding
- Division of Nephrology & Unit of Critical Nephrology, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiaotong University, 639 Zhizaoju Road, Shanghai, 200011, China.
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14
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Farrell CJ, Cicalese SM, Davis HB, Dogdas B, Shah T, Culp T, Hoang VM. Cell confluency analysis on microcarriers by micro-flow imaging. Cytotechnology 2016; 68:2469-2478. [PMID: 27179644 DOI: 10.1007/s10616-016-9967-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Accepted: 03/17/2016] [Indexed: 12/22/2022] Open
Abstract
The productivity of cell culture-derived vaccines grown in anchorage-dependent animal cells is limited by bioreactor surface area. One way to increase the available surface area is by growing cells as monolayers on small spheres called microcarriers, which are approximately 100-250 μm in diameter. In order for microcarrier-based cell culture to be a success, it is important to understand the kinetics of cell growth on the microcarriers. Micro-flow imaging (MFI) is a simple and powerful technique that captures images and analyzes samples as they are drawn through a precision flow cell. In addition to providing size distribution and defect frequency data to compare microcarrier lots, MFI was used to generate hundreds of images to determine cell coverage and confluency on microcarriers. Same-day manual classification of these images provided upstream cell culture teams with actionable data that informed in-process decision making (e.g. time of infection). Additionally, an automated cell coverage algorithm was developed to increase the speed and throughput of the analyses.
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Affiliation(s)
- Christopher J Farrell
- Vaccine Analytical Development, Merck & Co., Inc., 770 Sumneytown Pike, West Point, PA, 19486, USA.
| | - Stephanie M Cicalese
- Eurofins Lancaster Laboratories Professional Scientific Services, Lancaster, PA, USA
| | - Harrison B Davis
- Vaccine Drug Product Development, Merck & Co., Inc., West Point, PA, USA
| | - Belma Dogdas
- Applied Mathematics and Modeling, Merck & Co., Inc., Rahway, NJ, USA
| | - Tosha Shah
- Applied Mathematics and Modeling, Merck & Co., Inc., Rahway, NJ, USA
| | - Tim Culp
- Vaccine Analytical Development, Merck & Co., Inc., 770 Sumneytown Pike, West Point, PA, 19486, USA
| | - Van M Hoang
- Vaccine Analytical Development, Merck & Co., Inc., 770 Sumneytown Pike, West Point, PA, 19486, USA
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15
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Allazetta S, Lutolf MP. Stem cell niche engineering through droplet microfluidics. Curr Opin Biotechnol 2015; 35:86-93. [PMID: 26051090 DOI: 10.1016/j.copbio.2015.05.003] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Revised: 05/12/2015] [Accepted: 05/13/2015] [Indexed: 01/25/2023]
Abstract
Stem cells reside in complex niches in which their behaviour is tightly regulated by various biochemical and biophysical signals. In order to unveil some of the crucial stem cell-niche interactions and expedite the implementation of stem cells in clinical and pharmaceutical applications, in vitro methodologies are being developed to reconstruct key features of stem cell niches. Recently, droplet-based microfluidics has emerged as a promising strategy to build stem cell niche models in a miniaturized and highly precise fashion. This review highlights current advances in using droplet microfluidics in stem cell biology. We also discuss recent efforts in which microgel technology has been interfaced with high-throughput analyses to engender screening paradigms with an unparalleled potential for basic and applied biological studies.
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Affiliation(s)
- Simone Allazetta
- Laboratory of Stem Cell Bioengineering, Institute of Bioengineering, School of Life Sciences and School of Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Matthias P Lutolf
- Laboratory of Stem Cell Bioengineering, Institute of Bioengineering, School of Life Sciences and School of Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland; Institute of Chemical Sciences and Engineering, School of Basic Sciences, EPFL, Switzerland.
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16
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Lam ATL, Li J, Chen AKL, Birch WR, Reuveny S, Oh SKW. Improved Human Pluripotent Stem Cell Attachment and Spreading on Xeno-Free Laminin-521-Coated Microcarriers Results in Efficient Growth in Agitated Cultures. Biores Open Access 2015; 4:242-57. [PMID: 26309800 PMCID: PMC4540119 DOI: 10.1089/biores.2015.0010] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Human pluripotent stem cells (hPSC) are self-renewing cells having the potential of differentiation into the three lineages of somatic cells and thus can be medically used in diverse cellular therapies. One of the requirements for achieving these clinical applications is development of completely defined xeno-free systems for large-scale cell expansion and differentiation. Previously, we demonstrated that microcarriers (MCs) coated with mouse laminin-111 (LN111) and positively charged poly-l-lysine (PLL) critically enable the formation and evolution of cells/MC aggregates with high cell yields obtained under agitated conditions. In this article, we further improved the MC system into a defined xeno-free MC one in which the MCs are coated with recombinant human laminin-521 (LN521) alone without additional positive charge. The high binding affinity of the LN521 to cell integrins enables efficient initial HES-3 cell attachment (87%) and spreading (85%), which leads to generation of cells/MC aggregates (400 μm in size) and high cell yields (2.4–3.5×106 cells/mL) within 7 days in agitated plate and scalable spinner cultures. The universality of the system was demonstrated by propagation of an induced pluripotent cells line in this defined MC system. Long-term pluripotent (>90% expression Tra-1-60) cell expansion and maintenance of normal karyotype was demonstrated after 10 cell passages. Moreover, tri-lineage differentiation as well as directed differentiation into cardiomyocytes was achieved. The new LN521-based MC system offers a defined, xeno-free, GMP-compatible, and scalable bioprocessing platform for the production of hPSC with the quantity and quality compliant for clinical applications. Use of LN521 on MCs enabled a 34% savings in matrix and media costs over monolayer cultures to produce 108 cells.
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Affiliation(s)
- Alan Tin-Lun Lam
- Stem Cell Group, Bioprocessing Technology Institute , Agency for Science, Technology and Research (ASTAR), Singapore , Singapore
| | - Jian Li
- Institute of Materials Research and Engineering , Agency for Science, Technology and Research (ASTAR), Singapore , Singapore
| | - Allen Kuan-Liang Chen
- Stem Cell Group, Bioprocessing Technology Institute , Agency for Science, Technology and Research (ASTAR), Singapore , Singapore
| | - William R Birch
- Institute of Materials Research and Engineering , Agency for Science, Technology and Research (ASTAR), Singapore , Singapore
| | - Shaul Reuveny
- Stem Cell Group, Bioprocessing Technology Institute , Agency for Science, Technology and Research (ASTAR), Singapore , Singapore
| | - Steve Kah-Weng Oh
- Stem Cell Group, Bioprocessing Technology Institute , Agency for Science, Technology and Research (ASTAR), Singapore , Singapore
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17
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Ismadi MZ, Gupta P, Fouras A, Verma P, Jadhav S, Bellare J, Hourigan K. Flow characterization of a spinner flask for induced pluripotent stem cell culture application. PLoS One 2014; 9:e106493. [PMID: 25279733 PMCID: PMC4184809 DOI: 10.1371/journal.pone.0106493] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2014] [Accepted: 08/01/2014] [Indexed: 11/26/2022] Open
Abstract
We present detailed quantitative measurement analyses for flow in a spinner flask with spinning rates between 20 to 45 RPM, utilizing the optical velocimetry measurement technique of Particle Image Velocimetry (PIV). A partial section of the impeller was immersed in the working fluid to reduce the shear forces induced on the cells cultured on microcarriers. Higher rotational speeds improved the mixing effect in the medium at the expense of a higher shear environment. It was found that the mouse induced pluripotent stem (iPS) cells achieved the optimum number of cells over 7 days in 25 RPM suspension culture. This condition translates to 0.0984 Pa of maximum shear stress caused by the interaction of the fluid flow with the bottom surface. However, inverse cell growth was obtained at 28 RPM culture condition. Such a narrow margin demonstrated that mouse iPS cells cultured on microcarriers are very sensitive to mechanical forces. This study provides insight to biomechanical parameters, specifically the shear stress distribution, for a commercially available spinner flask over a wide range of Reynolds number.
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Affiliation(s)
- Mohd-Zulhilmi Ismadi
- Division of Biological Engineering, Monash University, Melbourne, Victoria, Australia
- Department of Mechanical and Aerospace Engineering, Monash University, Melbourne, Victoria, Australia
- * E-mail:
| | - Priyanka Gupta
- Division of Biological Engineering, Monash University, Melbourne, Victoria, Australia
- Department of Chemical Engineering, Monash University, Melbourne, Victoria, Australia
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Mumbai, India
| | - Andreas Fouras
- Division of Biological Engineering, Monash University, Melbourne, Victoria, Australia
- Department of Mechanical and Aerospace Engineering, Monash University, Melbourne, Victoria, Australia
| | - Paul Verma
- Division of Biological Engineering, Monash University, Melbourne, Victoria, Australia
- South Australian Research and Development Institute, Rosedale, South Australia, Australia
| | - Sameer Jadhav
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Mumbai, India
| | - Jayesh Bellare
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Mumbai, India
| | - Kerry Hourigan
- Division of Biological Engineering, Monash University, Melbourne, Victoria, Australia
- Department of Mechanical and Aerospace Engineering, Monash University, Melbourne, Victoria, Australia
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18
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Modification and qualification of a stirred single-use bioreactor for the improved expansion of human mesenchymal stem cells at benchtop scale. ACTA ACUST UNITED AC 2014. [DOI: 10.4155/pbp.14.29] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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19
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Gupta P, Ismadi MZ, Verma PJ, Fouras A, Jadhav S, Bellare J, Hourigan K. Optimization of agitation speed in spinner flask for microcarrier structural integrity and expansion of induced pluripotent stem cells. Cytotechnology 2014; 68:45-59. [PMID: 25062986 DOI: 10.1007/s10616-014-9750-z] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Accepted: 06/05/2014] [Indexed: 12/20/2022] Open
Abstract
In recent times, the study and use of induced pluripotent stem cells (iPSC) have become important in order to avoid the ethical issues surrounding the use of embryonic stem cells. Therapeutic, industrial and research based use of iPSC requires large quantities of cells generated in vitro. Mammalian cells, including pluripotent stem cells, have been expanded using 3D culture, however current limitations have not been overcome to allow a uniform, optimized platform for dynamic culture of pluripotent stem cells to be achieved. In the current work, we have expanded mouse iPSC in a spinner flask using Cytodex 3 microcarriers. We have looked at the effect of agitation on the microcarrier survival and optimized an agitation speed that supports bead suspension and iPS cell expansion without any bead breakage. Under the optimized conditions, the mouse iPSC were able to maintain their growth, pluripotency and differentiation capability. We demonstrate that microcarrier survival and iPS cell expansion in a spinner flask are reliant on a very narrow range of spin rates, highlighting the need for precise control of such set ups and the need for improved design of more robust systems.
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Affiliation(s)
- Priyanka Gupta
- IITB Monash Research Academy, Mumbai, India. .,Department of Chemical Engineering, IIT Bombay, Mumbai, India. .,Department of Chemical Engineering, Monash University, Melbourne, VIC, Australia. .,Division of Biological Engineering, Monash University, Melbourne, VIC, Australia.
| | - Mohd-Zulhilmi Ismadi
- Division of Biological Engineering, Monash University, Melbourne, VIC, Australia.,Department of Mechanical and Aerospace Engineering, Monash University, Melbourne, VIC, Australia
| | - Paul J Verma
- Division of Biological Engineering, Monash University, Melbourne, VIC, Australia.,South Australian Research and Development Institute, Rosedale, SA, Australia
| | - Andreas Fouras
- Department of Mechanical and Aerospace Engineering, Monash University, Melbourne, VIC, Australia
| | - Sameer Jadhav
- Department of Chemical Engineering, IIT Bombay, Mumbai, India
| | - Jayesh Bellare
- Department of Chemical Engineering, IIT Bombay, Mumbai, India
| | - Kerry Hourigan
- Division of Biological Engineering, Monash University, Melbourne, VIC, Australia.,Department of Mechanical and Aerospace Engineering, Monash University, Melbourne, VIC, Australia
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20
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Liu N, Li Y, Yang ST. Expansion of embryonic stem cells in suspension and fibrous bed bioreactors. J Biotechnol 2014; 178:54-64. [DOI: 10.1016/j.jbiotec.2014.03.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2014] [Revised: 02/14/2014] [Accepted: 03/06/2014] [Indexed: 12/23/2022]
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21
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Loring JF, McDevitt TC, Palecek SP, Schaffer DV, Zandstra PW, Nerem RM. A global assessment of stem cell engineering. Tissue Eng Part A 2014; 20:2575-89. [PMID: 24428577 DOI: 10.1089/ten.tea.2013.0468] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Over the last 2 years a global assessment of stem cell engineering (SCE) was conducted with the sponsorship of the National Science Foundation, the National Cancer Institute at the National Institutes of Health, and the National Institute of Standards and Technology. The purpose was to gather information on the worldwide status and trends in SCE, that is, the involvement of engineers and engineering approaches in the stem cell field, both in basic research and in the translation of research into clinical applications and commercial products. The study was facilitated and managed by the World Technology Evaluation Center. The process involved site visits in both Asia and Europe, and it also included several different workshops. From this assessment, the panel concluded that there needs to be an increased role for engineers and the engineering approach. This will provide a foundation for the generation of new markets and future economic growth. To do this will require an increased investment in engineering, applied research, and commercialization as it relates to stem cell research and technology. It also will require programs that support interdisciplinary teams, new innovative mechanisms for academic-industry partnerships, and unique translational models. In addition, the global community would benefit from forming strategic partnerships between countries that can leverage existing and emerging strengths in different institutions. To implement such partnerships will require multinational grant programs with appropriate review mechanisms.
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Affiliation(s)
- Jeanne F Loring
- 1 Director, Center for Regenerative Medicine, the Scripps Research Institute , LaJolla, California
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22
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Caruso SR, Orellana MD, Mizukami A, Fernandes TR, Fontes AM, Suazo CAT, Oliveira VC, Covas DT, Swiech K. Growth and functional harvesting of human mesenchymal stromal cells cultured on a microcarrier-based system. Biotechnol Prog 2014; 30:889-95. [DOI: 10.1002/btpr.1886] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2013] [Revised: 11/27/2013] [Indexed: 12/18/2022]
Affiliation(s)
- Sâmia R. Caruso
- Hemotherapy Center of Ribeirão Preto, School of Medicine of Ribeirão Preto; University of São Paulo; Tenente Catão Roxo Street, 2501 CEP 14051-140 Ribeirão Preto-SP Brazil
| | - Maristela D. Orellana
- Hemotherapy Center of Ribeirão Preto, School of Medicine of Ribeirão Preto; University of São Paulo; Tenente Catão Roxo Street, 2501 CEP 14051-140 Ribeirão Preto-SP Brazil
| | - Amanda Mizukami
- Hemotherapy Center of Ribeirão Preto, School of Medicine of Ribeirão Preto; University of São Paulo; Tenente Catão Roxo Street, 2501 CEP 14051-140 Ribeirão Preto-SP Brazil
| | - Taisa R. Fernandes
- Hemotherapy Center of Ribeirão Preto, School of Medicine of Ribeirão Preto; University of São Paulo; Tenente Catão Roxo Street, 2501 CEP 14051-140 Ribeirão Preto-SP Brazil
| | - Aparecida M. Fontes
- Hemotherapy Center of Ribeirão Preto, School of Medicine of Ribeirão Preto; University of São Paulo; Tenente Catão Roxo Street, 2501 CEP 14051-140 Ribeirão Preto-SP Brazil
- Dept. of Genetics; School of Medicine of Ribeirão Preto; Café av w/n CEP 14040-903 Ribeirão Preto-SP Brazil
| | - Claudio A. T. Suazo
- Dept. of Chemistry Engineering; Federal University of São Carlos; Washington Luís road, km 235 São Carlos Brazil
| | - Viviane C. Oliveira
- Dept. of Dental Materials and Prosthodontics, Faculty of Odontology of Ribeirão Preto; University of São Paulo; Café av w/n CEP 14040-903 Ribeirão Preto-SP Brazil
| | - Dimas T. Covas
- Hemotherapy Center of Ribeirão Preto, School of Medicine of Ribeirão Preto; University of São Paulo; Tenente Catão Roxo Street, 2501 CEP 14051-140 Ribeirão Preto-SP Brazil
- Dept. of Medical Clinic; Faculty of Medicine of Ribeirão Preto; Café av w/n CEP 14040-903 Ribeirão Preto-SP Brazil
| | - Kamilla Swiech
- Dept. of Pharmaceutical Sciences, Faculty of Pharmaceutical Sciences of Ribeirão Preto; University of São Paulo; Café av w/n CEP 14040-903 Ribeirão Preto-SP Brazil
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23
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Sart S, Schneider YJ, Li Y, Agathos SN. Stem cell bioprocess engineering towards cGMP production and clinical applications. Cytotechnology 2014; 66:709-22. [PMID: 24500393 DOI: 10.1007/s10616-013-9687-7] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2013] [Accepted: 12/31/2013] [Indexed: 12/17/2022] Open
Abstract
Stem cells, including mesenchymal stem cells and pluripotent stem cells, are becoming an indispensable tool for various biomedical applications including drug discovery, disease modeling, and tissue engineering. Bioprocess engineering, targeting large scale production, provides a platform to generate a controlled microenvironment that could potentially recreate the stem cell niche to promote stem cell proliferation or lineage-specific differentiation. This survey aims at defining the characteristics of stem cell populations currently in use and the present-day limits in their applications for therapeutic purposes. Furthermore, a bioprocess engineering strategy based on bioreactors and 3-D cultures is discussed in order to achieve the improved stem cell yield, function, and safety required for production under current good manufacturing practices.
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Affiliation(s)
- Sébastien Sart
- Department of Chemical and Biomedical Engineering, FAMU-FSU College of Engineering, Florida State University, 2525 Pottsdamer St, Tallahassee, FL, 32310, USA
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24
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Fernandes-Platzgummer A, Diogo MM, Lobato da Silva C, Cabral JM. Maximizing mouse embryonic stem cell production in a stirred tank reactor by controlling dissolved oxygen concentration and continuous perfusion operation. Biochem Eng J 2014. [DOI: 10.1016/j.bej.2013.11.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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25
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Yeo D, Kiparissides A, Cha JM, Aguilar-Gallardo C, Polak JM, Tsiridis E, Pistikopoulos EN, Mantalaris A. Improving embryonic stem cell expansion through the combination of perfusion and Bioprocess model design. PLoS One 2013; 8:e81728. [PMID: 24339957 PMCID: PMC3858261 DOI: 10.1371/journal.pone.0081728] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2013] [Accepted: 10/18/2013] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND High proliferative and differentiation capacity renders embryonic stem cells (ESCs) a promising cell source for tissue engineering and cell-based therapies. Harnessing their potential, however, requires well-designed, efficient and reproducible expansion and differentiation protocols as well as avoiding hazardous by-products, such as teratoma formation. Traditional, standard culture methodologies are fragmented and limited in their fed-batch feeding strategies that afford a sub-optimal environment for cellular metabolism. Herein, we investigate the impact of metabolic stress as a result of inefficient feeding utilizing a novel perfusion bioreactor and a mathematical model to achieve bioprocess improvement. METHODOLOGY/PRINCIPAL FINDINGS To characterize nutritional requirements, the expansion of undifferentiated murine ESCs (mESCs) encapsulated in hydrogels was performed in batch and perfusion cultures using bioreactors. Despite sufficient nutrient and growth factor provision, the accumulation of inhibitory metabolites resulted in the unscheduled differentiation of mESCs and a decline in their cell numbers in the batch cultures. In contrast, perfusion cultures maintained metabolite concentration below toxic levels, resulting in the robust expansion (>16-fold) of high quality 'naïve' mESCs within 4 days. A multi-scale mathematical model describing population segregated growth kinetics, metabolism and the expression of selected pluripotency ('stemness') genes was implemented to maximize information from available experimental data. A global sensitivity analysis (GSA) was employed that identified significant (6/29) model parameters and enabled model validation. Predicting the preferential propagation of undifferentiated ESCs in perfusion culture conditions demonstrates synchrony between theory and experiment. CONCLUSIONS/SIGNIFICANCE The limitations of batch culture highlight the importance of cellular metabolism in maintaining pluripotency, which necessitates the design of suitable ESC bioprocesses. We propose a novel investigational framework that integrates a novel perfusion culture platform (controlled metabolic conditions) with mathematical modeling (information maximization) to enhance ESC bioprocess productivity and facilitate bioprocess optimization.
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Affiliation(s)
- David Yeo
- Department of Chemical Engineering, Imperial College London, London, United Kingdom
| | | | - Jae Min Cha
- Department of Chemical Engineering, Imperial College London, London, United Kingdom
| | | | - Julia M. Polak
- Department of Chemical Engineering, Imperial College London, London, United Kingdom
| | - Elefterios Tsiridis
- Department of Surgery & Cancer, Imperial College London, London, United Kingdom
| | | | - Athanasios Mantalaris
- Department of Chemical Engineering, Imperial College London, London, United Kingdom
- * E-mail:
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26
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Sart S, Agathos SN, Li Y. Engineering stem cell fate with biochemical and biomechanical properties of microcarriers. Biotechnol Prog 2013; 29:1354-66. [PMID: 24124017 DOI: 10.1002/btpr.1825] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2013] [Revised: 09/29/2013] [Indexed: 12/28/2022]
Abstract
Microcarriers have been widely used for various biotechnology applications because of their high scale-up potential, high reproducibility in regulating cellular behavior, and well-documented compliance with current Good Manufacturing Practices (cGMP). Recently, microcarriers have been emerging as a novel approach for stem cell expansion and differentiation, enabling potential scale-up of stem cell-derived products in large bioreactors. This review summarizes recent advances of using microcarriers in mesenchymal stem cell (MSC) and pluripotent stem cell (PSC) cultures. From the reported data, efficient expansion and differentiation of stem cells on microcarriers rely on their ability to modulate cell shape (i.e. round or spreading) and cell organization (i.e. aggregate size). Nonetheless, current screening of microcarriers remains empirical, and accurate understanding of how stem cells interact with microcarriers still remains unknown. This review suggests that accurate characterization of biochemical and biomechanical properties of microcarriers is required to fully exploit their potential in regulating stem cell fate decision. Due to the variety of microcarriers, such detailed analyses should lead to the rational design of application-specific microcarriers, enabling the exploitation of reproducible effects for large scale biomedical applications.
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Affiliation(s)
- Sébastien Sart
- Dept. of Chemical and Biomedical Engineering, FAMU-FSU College of Engineering, Florida State University, Tallahassee, FL
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27
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Liu N, Zang R, Yang ST, Li Y. Stem cell engineering in bioreactors for large-scale bioprocessing. Eng Life Sci 2013. [DOI: 10.1002/elsc.201300013] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Affiliation(s)
- Ning Liu
- William G. Lowrie Department of Chemical and Biomolecular Engineering; Ohio State University; Columbus OH USA
| | - Ru Zang
- William G. Lowrie Department of Chemical and Biomolecular Engineering; Ohio State University; Columbus OH USA
| | - Shang-Tian Yang
- William G. Lowrie Department of Chemical and Biomolecular Engineering; Ohio State University; Columbus OH USA
| | - Yan Li
- Department of Chemical and Biomedical Engineering; FAMU-FSU College of Engineering; Florida State University; Tallahassee FL USA
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28
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Hussain W, Moens N, Veraitch FS, Hernandez D, Mason C, Lye GJ. Reproducible culture and differentiation of mouse embryonic stem cells using an automated microwell platform. Biochem Eng J 2013; 77:246-257. [PMID: 23956681 PMCID: PMC3741632 DOI: 10.1016/j.bej.2013.05.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2012] [Revised: 04/16/2013] [Accepted: 05/16/2013] [Indexed: 02/05/2023]
Abstract
We describe an automated platform for hands-free ESC expansion and differentiation. Key bioprocess variables were investigated to optimize culture inductions. Cell growth was more consistent with automated ESC expansion than manual culture. ESCs expanded on the automated platform maintained high levels of pluripotency. Cells expressed βIII-tubulin after successful automated neuronal differentiation.
The use of embryonic stem cells (ESCs) and their progeny in high throughput drug discovery and regenerative medicine will require production at scale of well characterized cells at an appropriate level of purity. The adoption of automated bioprocessing techniques offers the possibility to overcome the lack of consistency and high failure rates seen with current manual protocols. To build the case for increased use of automation this work addresses the key question: “can an automated system match the quality of a highly skilled and experienced person working manually?” To answer this we first describe an integrated automation platform designed for the ‘hands-free’ culture and differentiation of ESCs in microwell formats. Next we outline a framework for the systematic investigation and optimization of key bioprocess variables for the rapid establishment of validatable Standard Operating Procedures (SOPs). Finally the experimental comparison between manual and automated bioprocessing is exemplified by expansion of the murine Oct-4-GiP ESC line over eight sequential passages with their subsequent directed differentiation into neural precursors. Our results show that ESCs can be effectively maintained and differentiated in a highly reproducible manner by the automated system described. Statistical analysis of the results for cell growth over single and multiple passages shows up to a 3-fold improvement in the consistency of cell growth kinetics with automated passaging. The quality of the cells produced was evaluated using a panel of biological markers including cell growth rate and viability, nutrient and metabolite profiles, changes in gene expression and immunocytochemistry. Automated processing of the ESCs had no measurable negative effect on either their pluripotency or their ability to differentiate into the three embryonic germ layers. Equally important is that over a 6-month period of culture without antibiotics in the medium, we have not had any cases of culture contamination. This study thus confirms the benefits of adopting automated bioprocess routes to produce cells for therapy and for use in basic discovery research.
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Affiliation(s)
- Waqar Hussain
- The Advanced Centre for Biochemical Engineering, Department of Biochemical Engineering, University College London, Torrington Place, London WC1E 7JE, UK
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29
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Liu N, Li Y, Yang ST. Microfibrous carriers for integrated expansion and neural differentiation of embryonic stem cells in suspension bioreactor. Biochem Eng J 2013. [DOI: 10.1016/j.bej.2013.03.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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30
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Andrade PZ, dos Santos F, Cabral JMS, da Silva CL. Stem cell bioengineering strategies to widen the therapeutic applications of haematopoietic stem/progenitor cells from umbilical cord blood. J Tissue Eng Regen Med 2013; 9:988-1003. [PMID: 23564692 DOI: 10.1002/term.1741] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2012] [Revised: 01/18/2013] [Accepted: 02/05/2013] [Indexed: 12/11/2022]
Abstract
Umbilical cord blood (UCB) transplantation has observed a significant increase in recent years, due to the unique features of UCB haematopoietic stem/progenitor cells (HSCs) for the treatment of blood-related disorders. However, the low cell numbers available per UCB unit significantly impairs the widespread use of this source for transplantation of adult patients, resulting in graft failure, delayed engraftment and delayed immune reconstitution. In order to overcome this issue, distinct approaches are now being considered in clinical trials, such as double-UCB transplantation, intrabone injection or ex vivo expansion. In this article the authors review the current state of the art, future trends and challenges on the ex vivo expansion of UCB HSCs, focusing on culture parameters affecting the yield and quality of the expanded HSC grafts: novel HSC selection schemes prior to cell culture, cytokine/growth factor cocktails, the impact of biochemical factors (e.g. O2 ) or the addition of supportive cells, e.g. mesenchymal stem/stromal cell (MSC)-based feeder layers) were addressed. Importantly, a critical challenge in cellular therapy is still the scalability, reproducibility and control of the expansion process, in order to meet the clinical requirements for therapeutic applications. Efficient design of bioreactor systems and operation modes are now the focus of many bioengineers, integrating the increasing 'know-how' on HSC biology and physiology, while complying with the GMP standards for the production of cellular products, i.e. through the use of commercially available, highly controlled, disposable technologies.
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Affiliation(s)
- Pedro Z Andrade
- Department of Bioengineering and Institute for Biotechnology and Bioengineering (IBB), Instituto Superior Técnico, Lisboa, Portugal.,Cell2b, Advanced Therapeutics, Biocant Park, Cantanhede, Portugal
| | - Francisco dos Santos
- Department of Bioengineering and Institute for Biotechnology and Bioengineering (IBB), Instituto Superior Técnico, Lisboa, Portugal.,Cell2b, Advanced Therapeutics, Biocant Park, Cantanhede, Portugal
| | - Joaquim M S Cabral
- Department of Bioengineering and Institute for Biotechnology and Bioengineering (IBB), Instituto Superior Técnico, Lisboa, Portugal
| | - Cláudia L da Silva
- Department of Bioengineering and Institute for Biotechnology and Bioengineering (IBB), Instituto Superior Técnico, Lisboa, Portugal
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Zhou L, Kong J, Zhuang Y, Chu J, Zhang S, Guo M. Ex vivo expansion of bone marrow mesenchymal stem cells using microcarrier beads in a stirred bioreactor. BIOTECHNOL BIOPROC E 2013. [DOI: 10.1007/s12257-012-0512-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Allazetta S, Hausherr TC, Lutolf MP. Microfluidic synthesis of cell-type-specific artificial extracellular matrix hydrogels. Biomacromolecules 2013; 14:1122-31. [PMID: 23439131 DOI: 10.1021/bm4000162] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Droplet microfluidic technology is applied for the high-throughput synthesis via Michael-type addition of reactive, micrometer-sized poly(ethylene glycol) (PEG) hydrogels ("microgels") with precisely controlled dimension and physicochemical properties. A versatile chemical scheme is used to modify the reactive PEG microgels with tethered biomolecules to tune their bioactive properties for the bioreactor culture and manipulation of various (stem) cell types.
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Affiliation(s)
- Simone Allazetta
- Laboratory of Stem Cell Bioengineering, Institute of Bioengineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
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Wolfe RP, Ahsan T. Shear stress during early embryonic stem cell differentiation promotes hematopoietic and endothelial phenotypes. Biotechnol Bioeng 2013; 110:1231-42. [PMID: 23138937 DOI: 10.1002/bit.24782] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2012] [Revised: 09/30/2012] [Accepted: 10/30/2012] [Indexed: 12/21/2022]
Abstract
Pluripotent embryonic stem cells (ESCs) are a potential source for cell-based tissue engineering and regenerative medicine applications, but their translation into clinical use will require efficient and robust methods for promoting differentiation. Fluid shear stress, which can be readily incorporated into scalable bioreactors, may be one solution for promoting endothelial and hematopoietic phenotypes from ESCs. Here we applied laminar shear stress to differentiating ESCs using a 2D adherent parallel plate configuration to systematically investigate the effects of several mechanical parameters. Treatment similarly promoted endothelial and hematopoietic differentiation for shear stress magnitudes ranging from 1.5 to 15 dyne/cm(2) and for cells seeded on collagen-, fibronectin- or laminin-coated surfaces. Extension of the treatment duration consistently induced an endothelial response, but application at later stages of differentiation was less effective at promoting hematopoietic phenotypes. Furthermore, inhibition of the FLK1 protein (a VEGF receptor) neutralized the effects of shear stress, implicating the membrane protein as a critical mediator of both endothelial and hematopoietic differentiation by applied shear. Using a systematic approach, studies such as these help elucidate the mechanisms involved in force-mediated stem cell differentiation and inform scalable bioprocesses for cellular therapies.
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Affiliation(s)
- Russell P Wolfe
- Department of Biomedical Engineering, Tulane University, 500 Lindy Boggs Center, New Orleans, LA 70118, USA
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Park JH, Pérez RA, Jin GZ, Choi SJ, Kim HW, Wall IB. Microcarriers designed for cell culture and tissue engineering of bone. TISSUE ENGINEERING PART B-REVIEWS 2013; 19:172-90. [PMID: 23126371 DOI: 10.1089/ten.teb.2012.0432] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Microspherical particulates have been an attractive form of biomaterials that find usefulness in cell delivery and tissue engineering. A variety of compositions, including bioactive ceramics, degradable polymers, and their composites, have been developed into a microsphere form and have demonstrated the potential to fill defective bone and to populate tissue cells on curved matrices. To enhance the capacity of cell delivery, the conventional solid form of spheres is engineered to have either a porous structure to hold cells or a thin shell to in-situ encapsulate cells within the structure. Microcarriers can also be a potential reservoir system of bioactive molecules that have therapeutic effects in regulating cell behaviors. Due to their specific form, advanced technologies to culture cell-loaded microcarriers are required, such as simple agitation or shaking, spinner flask, and rotating chamber system. Here, we review systematically, from material design to culture technology, the microspherical carriers used for the delivery of cells and tissue engineering, particularly of bone.
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Affiliation(s)
- Jeong-Hui Park
- Biomaterials and Tissue Engineering Lab, Department of Nanobiomedical Science & WCU Research Center, Dankook University, Cheonan, South Korea
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Matsuura K, Wada M, Konishi K, Sato M, Iwamoto U, Sato Y, Tachibana A, Kikuchi T, Iwamiya T, Shimizu T, Yamashita JK, Yamato M, Hagiwara N, Okano T. Fabrication of mouse embryonic stem cell-derived layered cardiac cell sheets using a bioreactor culture system. PLoS One 2012; 7:e52176. [PMID: 23284924 PMCID: PMC3527435 DOI: 10.1371/journal.pone.0052176] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2012] [Accepted: 11/14/2012] [Indexed: 01/20/2023] Open
Abstract
Bioengineered functional cardiac tissue is expected to contribute to the repair of injured heart tissue. We previously developed cardiac cell sheets using mouse embryonic stem (mES) cell-derived cardiomyocytes, a system to generate an appropriate number of cardiomyocytes derived from ES cells and the underlying mechanisms remain elusive. In the present study, we established a cultivation system with suitable conditions for expansion and cardiac differentiation of mES cells by embryoid body formation using a three-dimensional bioreactor. Daily conventional medium exchanges failed to prevent lactate accumulation and pH decreases in the medium, which led to insufficient cell expansion and cardiac differentiation. Conversely, a continuous perfusion system maintained the lactate concentration and pH stability as well as increased the cell number by up to 300-fold of the seeding cell number and promoted cardiac differentiation after 10 days of differentiation. After a further 8 days of cultivation together with a purification step, around 1 × 10(8) cardiomyocytes were collected in a 1-L bioreactor culture, and additional treatment with noggin and granulocyte colony stimulating factor increased the number of cardiomyocytes to around 5.5 × 10(8). Co-culture of mES cell-derived cardiomyocytes with an appropriate number of primary cultured fibroblasts on temperature-responsive culture dishes enabled the formation of cardiac cell sheets and created layered-dense cardiac tissue. These findings suggest that this bioreactor system with appropriate medium might be capable of preparing cardiomyocytes for cell sheet-based cardiac tissue.
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Affiliation(s)
- Katsuhisa Matsuura
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women’s Medical University, Tokyo, Japan
- Department of Cardiology, Tokyo Women’s Medical University, Tokyo, Japan
| | | | | | | | | | | | | | - Tetsutaro Kikuchi
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women’s Medical University, Tokyo, Japan
- CellSeed Inc., Tokyo, Japan
| | - Takahiro Iwamiya
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women’s Medical University, Tokyo, Japan
| | - Tatsuya Shimizu
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women’s Medical University, Tokyo, Japan
| | - Jun K. Yamashita
- Laboratory of Stem Cell Differentiation, Stem Cell Research Center, Institute for Frontier Medical Sciences, Kyoto University, Kyoto, Japan
| | - Masayuki Yamato
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women’s Medical University, Tokyo, Japan
| | - Nobuhisa Hagiwara
- Department of Cardiology, Tokyo Women’s Medical University, Tokyo, Japan
| | - Teruo Okano
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women’s Medical University, Tokyo, Japan
- * E-mail:
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Kaiser S, Jossen V, Schirmaier C, Eibl D, Brill S, van den Bos C, Eibl R. Fluid Flow and Cell Proliferation of Mesenchymal Adipose-Derived Stem Cells in Small-Scale, Stirred, Single-Use Bioreactors. CHEM-ING-TECH 2012. [DOI: 10.1002/cite.201200180] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Marinho PAN, Vareschini DT, Gomes IC, Paulsen BDS, Furtado DR, Castilho LDR, Rehen SK. Xeno-free production of human embryonic stem cells in stirred microcarrier systems using a novel animal/human-component-free medium. Tissue Eng Part C Methods 2012; 19:146-55. [PMID: 22834864 DOI: 10.1089/ten.tec.2012.0141] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Currently, stem cell research faces a major bottleneck related to the low efficiency of methods to produce large quantities of human embryonic stem cells (ESC) for use in clinical trials. Most culture media currently employed for human ESC cultivation contain animal compounds, and cells are grown in static flasks. Besides the immediate contamination with nonhuman compounds, cell expansion in flasks tends to be laborious and nonefficient. Here we cultured human ESC in stirred microcarrier (MC) systems using an animal/human-component-free medium, to overcome both issues. The method developed to culture cells on suspended beads combined the use of polymeric MCs in stirred vessels with an optimized culture medium free of supplements of animal and human origin. This approach generated approximately 160 million cells within 6 days, which were shown to remain pluripotent. The process developed herein provides a step forward toward therapy due to the economic advantages in the production of human ESC and to their consequent low immunogenic potential.
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Affiliation(s)
- Paulo André Nobrega Marinho
- National Laboratory for Embryonic Stem Cell Research, Institute of Biomedical Sciences, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
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He W, Ye L, Li S, Liu H, Wang Q, Fu X, Han W, Chen Z. Stirred suspension culture improves embryoid body formation and cardiogenic differentiation of genetically modified embryonic stem cells. Biol Pharm Bull 2012; 35:308-16. [PMID: 22382315 DOI: 10.1248/bpb.35.308] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Embryonic stem cells (ESCs) can propagate unlimitedly in vitro and differentiate into cardiomyocytes, which have been proposed as unlimited cell sources for cardiac cell therapy. This was limited by difficulties in large-scale generation of pure cardiomyocytes. In this study, we used stirred bioreactors to optimize the differentiation condition for mass production of embryoid bodies (EBs) derived from genetically modified mouse ESCs. Stirred suspension culture could more efficiently produce EBs and have a more uniform EB population without large necrotic centers, compared with the conventional static culture. Importantly, the cardiac-specific gene expressions (GATA binding protein 4, α-cardiac myosin heavy chain and myosin light chain-2v) were increased within EBs cultured in stirred bioreactor. Stirred suspension culture significantly increased the proportion of spontaneously contracting EBs, yielded a greater percentage of α-sarcomeric actinin-positive cells detected via flow cytometry, and harvested relatively more cardiomyocytes after G418 selection. Stirred suspension culture provided a more ideal culture condition facilitating the growth of EBs and enhancing the cardiogenic differentiation of genetically modified ESCs, which may be valuable in large-scale generation of pure cardiomyocytes.
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Affiliation(s)
- Wenjun He
- Department of Cell Engineering, Institute of Biotechnology, Academy of Military Medical Sciences, Beijing, China
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40
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Yuan Y, Kallos MS, Hunter C, Sen A. Improved expansion of human bone marrow-derived mesenchymal stem cells in microcarrier-based suspension culture. J Tissue Eng Regen Med 2012; 8:210-25. [PMID: 22689330 DOI: 10.1002/term.1515] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2011] [Revised: 01/29/2012] [Accepted: 02/28/2012] [Indexed: 12/13/2022]
Abstract
Human bone marrow-derived mesenchymal stem cells (hBM-MSCs) have potential clinical utility in the treatment of a multitude of ailments and diseases, due to their relative ease of isolation from patients and their capacity to form many cell types. However, hBM-MSCs are sparse, and can only be isolated in very small quantities, thereby hindering the development of clinical therapies. The use of microcarrier-based stirred suspension bioreactors to expand stem cell populations offers an approach to overcome this problem. Starting with standard culture protocols commonly reported in the literature, we have successfully developed new protocols that allow for improved expansion of hBM-MSCs in stirred suspension bioreactors using CultiSpher-S microcarriers. Cell attachment was facilitated by using intermittent bioreactor agitation, removing fetal bovine serum, modifying the stirring speed and manipulating the medium pH. By manipulating these parameters, we enhanced the cell attachment efficiency in the first 8 h post-inoculation from 18% (standard protocol) to 72% (improved protocol). Following microcarrier attachment, agitation rate was found to impact cell growth kinetics, whereas feeding had no significant effect. By serially subculturing hBM-MSCs using the new suspension bioreactor protocols, we managed to obtain cell fold increases of 10³ within 30 days, which was superior to the 200-fold increase obtained using the standard protocol. The cells were found to retain their defining characteristics after several passages in suspension. This new bioprocess represents a more efficient approach for generating large numbers of hBM-MSCs in culture, which in turn should facilitate the development of new stem cell-based therapies.
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Affiliation(s)
- Yifan Yuan
- Pharmaceutical Production Research Facility (PPRF), Schulich School of Engineering, University of Calgary, Calgary, Alberta, Canada
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41
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Want AJ, Nienow AW, Hewitt CJ, Coopman K. Large-scale expansion and exploitation of pluripotent stem cells for regenerative medicine purposes: beyond the T flask. Regen Med 2012; 7:71-84. [DOI: 10.2217/rme.11.101] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Human pluripotent stem cells will likely be a significant part of the regenerative medicine-driven healthcare revolution. In order to realize this potential, culture processes must be standardized, scalable and able to produce clinically relevant cell numbers, whilst maintaining critical biological functionality. This review comprises a broad overview of important bioprocess considerations, referencing the development of biopharmaceutical processes in an effort to learn from current best practice in the field. Particular focus is given to the recent efforts to grow human pluripotent stem cells in microcarrier or aggregate suspension culture, which would allow geometric expansion of productive capacity were it to be fully realized. The potential of these approaches is compared with automation of traditional T-flask culture, which may provide a cost-effective platform for low-dose, low-incidence conditions or autologous therapies. This represents the first step in defining the full extent of the challenges facing bioprocess engineers in the exploitation of large-scale human pluripotent stem cell manufacture.
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Affiliation(s)
- Andrew J Want
- Centre for Biological Engineering, Department of Chemical Engineering, Loughborough University, Leicestershire, LE11 3TU, UK
| | - Alvin W Nienow
- Centre for Biological Engineering, Department of Chemical Engineering, Loughborough University, Leicestershire, LE11 3TU, UK
- Centre for Bioprocess Engineering, Department of Chemical Engineering, University of Birmingham, B15 2TT, UK
| | - Christopher J Hewitt
- Centre for Biological Engineering, Department of Chemical Engineering, Loughborough University, Leicestershire, LE11 3TU, UK
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42
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Rodrigues CAV, Diogo MM, da Silva CL, Cabral JMS. Microcarrier expansion of mouse embryonic stem cell-derived neural stem cells in stirred bioreactors. Biotechnol Appl Biochem 2011; 58:231-42. [PMID: 21838797 DOI: 10.1002/bab.37] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Neural stem cells (NSCs) are self-renewing multipotent cells, able to differentiate into the phenotypes present in the central nervous system. Applications of NSCs may include toxicology, fundamental research, or cell therapies. The culture of floating cell clusters, called "neurospheres," is widely used for the propagation of NSC populations in vitro but shows several limitations, which may be circumvented by expansion under adherent conditions. In particular, the derivation of distinct populations of NSCs from embryonic stem cells capable of long-term culture under adherent conditions without losing differentiation potential was recently described. However, the expansion of these cells in agitated bioreactors has not been addressed until now and was the aim of this study. Selected microcarriers were tested under dynamic conditions in spinner flasks. Superior performance was observed with polystyrene beads coated with a recombinant peptide containing the Arg-Gly-Asp (RGD) motif (Pronectin F). After optimization of the culture, a 35-fold increase in cell number was achieved after 6 days. High cellular viability and multipotency were maintained throughout the culture. The study presented here may be the basis for the development of larger scale bioprocesses for expansion of these and other populations of adherent NSCs, either from mouse or human origin.
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Affiliation(s)
- Carlos A V Rodrigues
- Department of Bioengineering, Instituto Superior Técnico, Technical University of Lisbon, Lisboa, Portugal
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43
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Larijani MR, Seifinejad A, Pournasr B, Hajihoseini V, Hassani SN, Totonchi M, Yousefi M, Shamsi F, Salekdeh GH, Baharvand H. Long-Term Maintenance of Undifferentiated Human Embryonic and Induced Pluripotent Stem Cells in Suspension. Stem Cells Dev 2011; 20:1911-23. [DOI: 10.1089/scd.2010.0517] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Affiliation(s)
- Mehran Rezaei Larijani
- Department of Stem Cells and Developmental Biology, Royan Institute for Stem Cell Biology and Technology, The Academic Center for Education, Culture and Research, Tehran, Iran
| | - Ali Seifinejad
- Department of Stem Cells and Developmental Biology, Royan Institute for Stem Cell Biology and Technology, The Academic Center for Education, Culture and Research, Tehran, Iran
| | - Behshad Pournasr
- Department of Stem Cells and Developmental Biology, Royan Institute for Stem Cell Biology and Technology, The Academic Center for Education, Culture and Research, Tehran, Iran
| | - Vahid Hajihoseini
- Department of Molecular Systems Biology, Royan Institute for Stem Cell Biology and Technology, The Academic Center for Education, Culture and Research, Tehran, Iran
- Department of Biotechnology, College of Science, University of Tehran, Tehran, Iran
| | - Seydeh-Nafiseh Hassani
- Department of Stem Cells and Developmental Biology, Royan Institute for Stem Cell Biology and Technology, The Academic Center for Education, Culture and Research, Tehran, Iran
| | - Mehdi Totonchi
- Department of Genetics, Royan Institute for Reproductive Biomedicine, The Academic Center for Education, Culture and Research, Tehran, Iran
| | - Maryam Yousefi
- Department of Molecular Systems Biology, Royan Institute for Stem Cell Biology and Technology, The Academic Center for Education, Culture and Research, Tehran, Iran
- Department of Biotechnology, College of Science, University of Tehran, Tehran, Iran
| | - Farnaz Shamsi
- Department of Molecular Systems Biology, Royan Institute for Stem Cell Biology and Technology, The Academic Center for Education, Culture and Research, Tehran, Iran
- Department of Biotechnology, College of Science, University of Tehran, Tehran, Iran
| | - Ghasem Hosseini Salekdeh
- Department of Molecular Systems Biology, Royan Institute for Stem Cell Biology and Technology, The Academic Center for Education, Culture and Research, Tehran, Iran
- Department of Systems Biology, Agricultural Biotechnology Research Institute of Iran, Karaj, Iran
| | - Hossein Baharvand
- Department of Stem Cells and Developmental Biology, Royan Institute for Stem Cell Biology and Technology, The Academic Center for Education, Culture and Research, Tehran, Iran
- Department of Developmental Biology, University of Science and Culture, The Academic Center for Education, Culture and Research, Tehran, Iran
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44
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Baradez MO, Marshall D. The use of multidimensional image-based analysis to accurately monitor cell growth in 3D bioreactor culture. PLoS One 2011; 6:e26104. [PMID: 22028809 PMCID: PMC3197601 DOI: 10.1371/journal.pone.0026104] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2011] [Accepted: 09/19/2011] [Indexed: 12/21/2022] Open
Abstract
The transition from traditional culture methods towards bioreactor based bioprocessing to produce cells in commercially viable quantities for cell therapy applications requires the development of robust methods to ensure the quality of the cells produced. Standard methods for measuring cell quality parameters such as viability provide only limited information making process monitoring and optimisation difficult. Here we describe a 3D image-based approach to develop cell distribution maps which can be used to simultaneously measure the number, confluency and morphology of cells attached to microcarriers in a stirred tank bioreactor. The accuracy of the cell distribution measurements is validated using in silico modelling of synthetic image datasets and is shown to have an accuracy >90%. Using the cell distribution mapping process and principal component analysis we show how cell growth can be quantitatively monitored over a 13 day bioreactor culture period and how changes to manufacture processes such as initial cell seeding density can significantly influence cell morphology and the rate at which cells are produced. Taken together, these results demonstrate how image-based analysis can be incorporated in cell quality control processes facilitating the transition towards bioreactor based manufacture for clinical grade cells.
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Affiliation(s)
| | - Damian Marshall
- Science and Technology Division, LGC, Teddington, Middlesex, United Kingdom
- * E-mail:
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45
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Choi JS, Kim BS, Kim JD, Choi YC, Lee EK, Park K, Lee HY, Cho YW. In vitro expansion of human adipose-derived stem cells in a spinner culture system using human extracellular matrix powders. Cell Tissue Res 2011; 345:415-23. [PMID: 21866312 DOI: 10.1007/s00441-011-1223-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2011] [Accepted: 07/19/2011] [Indexed: 12/13/2022]
Abstract
Stem cell therapy requires large numbers of stem cells to replace damaged tissues, but only limited numbers of stem cells can be harvested from a single patient. To obtain large quantities of stem cells with differentiation potential, we explored a spinner culture system using human extracellular matrix (hECM) powders. The hECM was extracted from adipose tissue and fabricated into powders. Human adipose-derived stem cells (hASCs) were isolated, seeded on hECM powders, and cultivated in a spinner flask. The 3-D culture system, using hECM powders, was highly effective for promoting cell proliferation. The number of hASCs in the 3-D culture system significantly increased for 10 days, resulting in an approximately 10-fold expansion, whereas a traditional 2-D culture system showed just a 2.8-fold expansion. Surface markers, transcriptional factors, and differentiation potential of hASCs were assayed to identify the characteristics of proliferated cells in 3-D culture system. The hASCs expressed the pluripotency markers, Oct-4 and Sox-2 during 3-D culture and retained their capacity to differentiate into adipogenic, osteogenic, and chondrogenic lineages. These findings demonstrate that the 3-D culture systems using hECM powders provide an efficient in vitro environment for stem cell proliferation, and could act as stem cell delivery carriers for autologous tissue engineering and cell therapy.
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Affiliation(s)
- Ji Suk Choi
- Departments of Chemical Engineering and Bionanotechnology, Hanyang University, Sangnok-gu, Ansan, Gyeonggi-do, Republic of Korea
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46
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Fernandes-Platzgummer A, Diogo MM, Baptista RP, da Silva CL, Cabral JMS. Scale-up of mouse embryonic stem cell expansion in stirred bioreactors. Biotechnol Prog 2011; 27:1421-32. [PMID: 21793233 DOI: 10.1002/btpr.658] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2011] [Revised: 06/08/2011] [Indexed: 01/07/2023]
Abstract
The aim of this study was to develop a robust, quality controlled and reproducible large-scale culture system using serum-free (SF) medium to obtain vast numbers of embryonic stem (ES) cells as a starting source for potential applications in tissue regeneration, as well as for drug screening studies. Mouse ES (mES) cells were firstly cultured on microcarriers in spinner flasks to investigate the effect of different parameters such as the agitation rate and the feeding regimen. Cells were successfully expanded at agitation rates up to 60 rpm using the SF medium and no significant differences in terms of growth kinetics or metabolic profiles were found between the two feeding regimens evaluated: 50% medium renewal every 24 h or 25% every 12 h. Overall, cells reached maximum concentrations of (4.2 ± 0.4) and (5.6 ± 0.8) ×10(6) cells/mL at Day 8 for cells fed once or twice per day; which corresponds to an increase in total cell number of 85 ± 7 and 108 ± 16, respectively. To have a more precise control over culture conditions and to yield a higher number of cells, the scale-up of the spinner flask culture system was successfully accomplished by using a fully controlled stirred tank bioreactor. In this case, the concentration of mES cells cultured on microcarriers increased 85 ± 15-fold over 11 days. Importantly, mES cells expanded under stirred conditions, in both spinner flask and fully controlled stirred tank bioreactor, using SF medium, retained the expression of pluripotency markers such as Oct-4, Nanog, and SSEA-1 and their differentiation potential into cells of the three embryonic germ layers.
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Hewitt CJ, Lee K, Nienow AW, Thomas RJ, Smith M, Thomas CR. Expansion of human mesenchymal stem cells on microcarriers. Biotechnol Lett 2011; 33:2325-35. [PMID: 21769648 DOI: 10.1007/s10529-011-0695-4] [Citation(s) in RCA: 118] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2011] [Accepted: 07/01/2011] [Indexed: 11/30/2022]
Abstract
The effects on human mesenchymal stem cell growth of choosing either of two spinner flask impeller geometries, two microcarrier concentrations and two cell concentrations (seeding densities) were investigated. Cytodex 3 microcarriers were not damaged when held at the minimum speed, N(JS), for their suspension, using either impeller, nor was there any observable damage to the cells. The maximum cell density was achieved after 8-10 days of culture with up to a 20-fold expansion in terms of cells per microcarrier. An increase in microcarrier concentration or seeding density generally had a deleterious or neutral effect, as previously observed for human fibroblast cultures. The choice of impeller was significant, as was incorporation of a 1 day delay before agitation to allow initial attachment of cells. The best conditions for cell expansion on the microcarriers in the flasks were 3,000 microcarriers ml(-1) (ca. 1 g dry weight l(-1)), a seeding density of 5 cells per microcarrier with a 1 day delay before agitation began at N(JS) (30 rpm), using a horizontally suspended flea impeller with an added vertical paddle. These findings were interpreted using Kolmogorov's theory of isotropic turbulence.
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Affiliation(s)
- Christopher J Hewitt
- Department of Chemical Engineering, Centre for Biological Engineering, Loughborough University, Leicestershire, UK.
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48
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Rodrigues CAV, Fernandes TG, Diogo MM, da Silva CL, Cabral JMS. Stem cell cultivation in bioreactors. Biotechnol Adv 2011; 29:815-29. [PMID: 21726624 DOI: 10.1016/j.biotechadv.2011.06.009] [Citation(s) in RCA: 136] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2010] [Revised: 06/11/2011] [Accepted: 06/12/2011] [Indexed: 12/22/2022]
Abstract
Cell-based therapies have generated great interest in the scientific and medical communities, and stem cells in particular are very appealing for regenerative medicine, drug screening and other biomedical applications. These unspecialized cells have unlimited self-renewal capacity and the remarkable ability to produce mature cells with specialized functions, such as blood cells, nerve cells or cardiac muscle. However, the actual number of cells that can be obtained from available donors is very low. One possible solution for the generation of relevant numbers of cells for several applications is to scale-up the culture of these cells in vitro. This review describes recent developments in the cultivation of stem cells in bioreactors, particularly considerations regarding critical culture parameters, possible bioreactor configurations, and integration of novel technologies in the bioprocess development stage. We expect that this review will provide updated and detailed information focusing on the systematic production of stem cell products in compliance with regulatory guidelines, while using robust and cost-effective approaches.
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Affiliation(s)
- Carlos A V Rodrigues
- Department of Bioengineering and Institute for Biotechnology and Bioengineering (IBB), Centre for Biological and Chemical Engineering, Instituto Superior Técnico, Technical University of Lisbon, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
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49
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Wen Y, Yang ST. Microfibrous carriers for cell culture: A comparative study. Biotechnol Prog 2011; 27:1126-36. [DOI: 10.1002/btpr.625] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2010] [Revised: 03/16/2011] [Indexed: 11/06/2022]
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Boo L, Selvaratnam L, Tai CC, Ahmad TS, Kamarul T. Expansion and preservation of multipotentiality of rabbit bone-marrow derived mesenchymal stem cells in dextran-based microcarrier spin culture. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2011; 22:1343-1356. [PMID: 21461701 DOI: 10.1007/s10856-011-4294-7] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2010] [Accepted: 03/14/2011] [Indexed: 05/30/2023]
Abstract
The use of mesenchymal stem cells (MSCs) in tissue repair and regeneration despite their multipotentiality has been limited by their cell source quantity and decelerating proliferative yield efficiency. A study was thus undertaken to determine the feasibility of using microcarrier beads in spinner flask cultures for MSCs expansion and compared to that of conventional monolayer cultures and static microcarrier cultures. Isolation and characterization of bone marrow derived MSCs were conducted from six adult New Zealand white rabbits. Analysis of cell morphology on microcarriers and culture plates at different time points (D0, D3, D10, D14) during cell culture were performed using scanning electron microscopy and bright field microscopy. Cell proliferation rates and cell number were measured over a period of 14 days, respectively followed by post-expansion characterization. MTT proliferation assay demonstrated a 3.20 fold increase in cell proliferation rates in MSCs cultured on microcarriers in spinner flask as compared to monolayer cultures (p < 0.05). Cell counts at day 14 were higher in those seeded on stirred microcarrier cultures (6.24 ± 0.0420 cells/ml) × 10(5) as compared to monolayer cultures (0.22 ± 0.004 cells/ml) × 10(5) and static microcarrier cultures (0.20 ± 0.002 cells/ml) × 10(5). Scanning electron microscopy demonstrated an increase in cell colonization of the cells on the microcarriers in stirred cultures. Bead-expanded MSCs were successfully differentiated into osteogenic and chondrogenic lineages. This system offers an improved and efficient alternative for culturing MSCs with preservation to their phenotype and multipotentiality.
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Affiliation(s)
- Lily Boo
- Tissue Engineering Group, Department of Orthopaedic Surgery, Faculty of Medicine, National Orthopaedic Centre of Excellence for Research and Learning, University of Malaya, 50603, Kuala Lumpur, Malaysia.
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