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Jeong YC, Han SC, Wu CH, Kang K. A micro-architectured material as a pressure vessel for green mobility. Nat Commun 2024; 15:353. [PMID: 38191611 PMCID: PMC10774278 DOI: 10.1038/s41467-024-44695-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Accepted: 12/28/2023] [Indexed: 01/10/2024] Open
Abstract
A shellular is a micro-architectured material, composed of a continuous smooth-curved thin shell in the form of a triply periodic minimal surface. Thanks to the unique geometry, a shellular can support external load by co-planar stresses, unlike microlattice, nanolattice, and mechanical metamaterial. That is, the shellular is the only stretching-dominated material with the highest strength at a density of less than 10-2 g/cc. Therefore, it is expected to support internal pressure, too, by the bi-axial tensile stresses like a balloon. For more than 300 years, spherical and cylindrical vessels have been viable yet compromised options for storing pressurized gases. However, emerging green mobility necessitates a safer and more spatially conformable storage solution for hydrogen than spherical and cylindrical vessels these conventional vessels. In this study, we propose to use the shellular as a pressure vessel. Due to the distinct topological nature - periodic micro-cells constituting the triply periodic minimal surface, the alternative pressure vessel can be tailored individually for spatial requirements while ensuring safety with leak-before-break. For a given constituent material and prescribed pressure, the achievable internal volume-per-total weight of a P-surfaced, cold-stretched, double-chambered shellular vessel with a number of cells more than 15 × 15 × 15 can exceed the practical upper bound of both spherical and cylindrical vessels. For the applications, a thin shell with the large surface area of this micro-architecture is ideal for interfacial transfer of heat or mass between its two sub-volumes under internal pressure.
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Affiliation(s)
- Yoon Chang Jeong
- School of Mechanical Engineering, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Seung Chul Han
- School of Mechanical Engineering, Chonnam National University, Gwangju, 61186, Republic of Korea
- Reliability Research Division, Korean Construction Equipment Technology Institute, Gunsan-si, Republic of Korea
| | - Cheng Han Wu
- School of Mechanical Engineering, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Kiju Kang
- School of Mechanical Engineering, Chonnam National University, Gwangju, 61186, Republic of Korea.
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2
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Bomkamp C, Skaalure SC, Fernando GF, Ben‐Arye T, Swartz EW, Specht EA. Scaffolding Biomaterials for 3D Cultivated Meat: Prospects and Challenges. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2102908. [PMID: 34786874 PMCID: PMC8787436 DOI: 10.1002/advs.202102908] [Citation(s) in RCA: 45] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 10/12/2021] [Indexed: 05/03/2023]
Abstract
Cultivating meat from stem cells rather than by raising animals is a promising solution to concerns about the negative externalities of meat production. For cultivated meat to fully mimic conventional meat's organoleptic and nutritional properties, innovations in scaffolding technology are required. Many scaffolding technologies are already developed for use in biomedical tissue engineering. However, cultivated meat production comes with a unique set of constraints related to the scale and cost of production as well as the necessary attributes of the final product, such as texture and food safety. This review discusses the properties of vertebrate skeletal muscle that will need to be replicated in a successful product and the current state of scaffolding innovation within the cultivated meat industry, highlighting promising scaffold materials and techniques that can be applied to cultivated meat development. Recommendations are provided for future research into scaffolds capable of supporting the growth of high-quality meat while minimizing production costs. Although the development of appropriate scaffolds for cultivated meat is challenging, it is also tractable and provides novel opportunities to customize meat properties.
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Affiliation(s)
- Claire Bomkamp
- The Good Food Institute1380 Monroe St. NW #229WashingtonDC20010USA
| | | | | | - Tom Ben‐Arye
- The Good Food Institute1380 Monroe St. NW #229WashingtonDC20010USA
| | - Elliot W. Swartz
- The Good Food Institute1380 Monroe St. NW #229WashingtonDC20010USA
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3
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Reiss J, Robertson S, Suzuki M. Cell Sources for Cultivated Meat: Applications and Considerations throughout the Production Workflow. Int J Mol Sci 2021; 22:7513. [PMID: 34299132 PMCID: PMC8307620 DOI: 10.3390/ijms22147513] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 07/08/2021] [Accepted: 07/09/2021] [Indexed: 12/11/2022] Open
Abstract
Cellular agriculture is an emerging scientific discipline that leverages the existing principles behind stem cell biology, tissue engineering, and animal sciences to create agricultural products from cells in vitro. Cultivated meat, also known as clean meat or cultured meat, is a prominent subfield of cellular agriculture that possesses promising potential to alleviate the negative externalities associated with conventional meat production by producing meat in vitro instead of from slaughter. A core consideration when producing cultivated meat is cell sourcing. Specifically, developing livestock cell sources that possess the necessary proliferative capacity and differentiation potential for cultivated meat production is a key technical component that must be optimized to enable scale-up for commercial production of cultivated meat. There are several possible approaches to develop cell sources for cultivated meat production, each possessing certain advantages and disadvantages. This review will discuss the current cell sources used for cultivated meat production and remaining challenges that need to be overcome to achieve scale-up of cultivated meat for commercial production. We will also discuss cell-focused considerations in other components of the cultivated meat production workflow, namely, culture medium composition, bioreactor expansion, and biomaterial tissue scaffolding.
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Affiliation(s)
- Jacob Reiss
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, WI 53706, USA; (J.R.); (S.R.)
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Samantha Robertson
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, WI 53706, USA; (J.R.); (S.R.)
| | - Masatoshi Suzuki
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, WI 53706, USA; (J.R.); (S.R.)
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
- Stem Cell and Regenerative Medicine Center, University of Wisconsin-Madison, Madison, WI 53706, USA
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4
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Ng S, Kurisawa M. Integrating biomaterials and food biopolymers for cultured meat production. Acta Biomater 2021; 124:108-129. [PMID: 33472103 DOI: 10.1016/j.actbio.2021.01.017] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 12/18/2020] [Accepted: 01/11/2021] [Indexed: 02/07/2023]
Abstract
Cultured meat has recently achieved mainstream prominence due to the emergence of societal and industrial interest. In contrast to animal-based production of traditional meat, the cultured meat approach entails laboratory cultivation of engineered muscle tissue. However, bioengineers have hitherto engineered tissues to fulfil biomedical endpoints, and have had limited experience in engineering muscle tissue for its post-mortem traits, which broadly govern consumer definitions of meat quality. Furthermore, existing tissue engineering approaches face fundamental challenges in technical feasibility and industrial scalability for cultured meat production. This review discusses how animal-based meat production variables influence meat properties at both the molecular and functional level, and whether current cultured meat approaches recapitulate these properties. In addition, this review considers how conventional meat producers employ exogenous biopolymer-based meat ingredients and processing techniques to mimic desirable meat properties in meat products. Finally, current biomaterial strategies for engineering muscle and adipose tissue are surveyed in the context of emerging constraints that pertain to cultured meat production, such as edibility, sustainability and scalability, and potential areas for integrating biomaterials and food biopolymer approaches to address these constraints are discussed. STATEMENT OF SIGNIFICANCE: Laboratory-grown or cultured meat has gained increasing interest from industry and the public, but currently faces significant impediment to market feasibility. This is due to fundamental knowledge gaps in producing realistic meat tissues via conventional tissue engineering approaches, as well as translational challenges in scaling up these approaches in an efficient, sustainable and high-volume manner. By defining the molecular basis for desirable meat quality attributes, such as taste and texture, and introducing the fundamental roles of food biopolymers in mimicking these properties in conventional meat products, this review aims to bridge the historically disparate fields of meat science and biomaterials engineering in order to inspire potentially synergistic strategies that address some of these challenges.
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Choi KH, Yoon JW, Kim M, Lee HJ, Jeong J, Ryu M, Jo C, Lee CK. Muscle stem cell isolation and in vitro culture for meat production: A methodological review. Compr Rev Food Sci Food Saf 2021; 20:429-457. [PMID: 33443788 DOI: 10.1111/1541-4337.12661] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 09/29/2020] [Accepted: 10/01/2020] [Indexed: 12/12/2022]
Abstract
Cultured muscle tissue-based protein products, also known as cultured meat, are produced through in vitro myogenesis involving muscle stem cell culture and differentiation, and mature muscle cell processing for flavor and texture. This review focuses on the in vitro myogenesis for cultured meat production. The muscle stem cell-based in vitro muscle tissue production consists of a sequential process: (1) muscle sampling for stem cell collection, (2) muscle tissue dissociation and muscle stem cell isolation, (3) primary cell culture, (4) upscaled cell culture, (5) muscle differentiation and maturation, and (6) muscle tissue harvest. Although muscle stem cell research is a well-established field, the majority of these steps remain to be underoptimized to enable the in vitro creation of edible muscle-derived meat products. The profound understanding of the process would help not only cultured meat production but also business sectors that have been seeking new biomaterials for the food industry. In this review, we discuss comprehensively and in detail each step of cutting-edge methods for cultured meat production. This would be meaningful for both academia and industry to prepare for the new era of cellular agriculture.
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Affiliation(s)
- Kwang-Hwan Choi
- Department of Agricultural Biotechnology, Center for Food and Bioconvergence, and Research Institute of Agriculture and Life Science, Seoul National University, Seoul, Republic of Korea
| | - Ji Won Yoon
- Department of Agricultural Biotechnology, Center for Food and Bioconvergence, and Research Institute of Agriculture and Life Science, Seoul National University, Seoul, Republic of Korea
| | - Minsu Kim
- Department of Agricultural Biotechnology, Center for Food and Bioconvergence, and Research Institute of Agriculture and Life Science, Seoul National University, Seoul, Republic of Korea
| | - Hyun Jung Lee
- Department of Agricultural Biotechnology, Center for Food and Bioconvergence, and Research Institute of Agriculture and Life Science, Seoul National University, Seoul, Republic of Korea
| | - Jinsol Jeong
- Department of Agricultural Biotechnology, Center for Food and Bioconvergence, and Research Institute of Agriculture and Life Science, Seoul National University, Seoul, Republic of Korea
| | - Minkyung Ryu
- Department of Agricultural Biotechnology, Center for Food and Bioconvergence, and Research Institute of Agriculture and Life Science, Seoul National University, Seoul, Republic of Korea
| | - Cheorun Jo
- Department of Agricultural Biotechnology, Center for Food and Bioconvergence, and Research Institute of Agriculture and Life Science, Seoul National University, Seoul, Republic of Korea.,Institute of Green Bio Science and Technology, Seoul National University, Pyeongchang, Republic of Korea
| | - Chang-Kyu Lee
- Department of Agricultural Biotechnology, Center for Food and Bioconvergence, and Research Institute of Agriculture and Life Science, Seoul National University, Seoul, Republic of Korea.,Institute of Green Bio Science and Technology, Seoul National University, Pyeongchang, Republic of Korea
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6
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Bellani CF, Ajeian J, Duffy L, Miotto M, Groenewegen L, Connon CJ. Scale-Up Technologies for the Manufacture of Adherent Cells. Front Nutr 2020; 7:575146. [PMID: 33251241 PMCID: PMC7672005 DOI: 10.3389/fnut.2020.575146] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 08/21/2020] [Indexed: 12/21/2022] Open
Abstract
Great importance is being given to the impact our food supply chain and consumers' food habits are having on the environment, human health, and animal welfare. One of the latest developments aiming at positively changing the food ecosystem is represented by cultured meat. This form of cellular agriculture has the objective to generate slaughter-free meat products starting from the cultivation of few cells harvested from the animal tissue of interest. As a consequence, a large number of cells has to be generated at a reasonable cost. Just to give an idea of the scale, there were billions of cells just in a bite of the first cultured-meat burger. Thus, one of the major challenges faced by the scientists involved in this new ambitious and fascinating field, is how to efficiently scale-up cell manufacture. Considering the great potential presented by cultured meat, audiences from different backgrounds are very interested in this topic and eager to be informed of the challenges and possible solutions in this area. In light of this, we will provide an overview of the main existing bioprocessing technologies used to scale-up adherent cells at a small and large scale. Thus, giving a brief technical description of these bioprocesses, with the main associated advantages and disadvantages. Moreover, we will introduce an alternative solution we believe has the potential to revolutionize the way adherent cells are grown, helping cultured meat become a reality.
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Affiliation(s)
- Caroline Faria Bellani
- International Center for Life, Biosciences Institute, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Jila Ajeian
- CellulaREvolution Ltd, International Center for Life, Newcastle upon Tyne, United Kingdom
| | - Laura Duffy
- CellulaREvolution Ltd, International Center for Life, Newcastle upon Tyne, United Kingdom
| | - Martina Miotto
- CellulaREvolution Ltd, International Center for Life, Newcastle upon Tyne, United Kingdom
| | - Leo Groenewegen
- CellulaREvolution Ltd, International Center for Life, Newcastle upon Tyne, United Kingdom
| | - Che J Connon
- International Center for Life, Biosciences Institute, Newcastle University, Newcastle upon Tyne, United Kingdom.,CellulaREvolution Ltd, International Center for Life, Newcastle upon Tyne, United Kingdom
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Djeljadini S, Lohaus T, Gausmann M, Rauer S, Kather M, Krause B, Pich A, Möller M, Wessling M. Trypsin-Free Cultivation of 3D Mini-Tissues in an Adaptive Membrane Bioreactor. ACTA ACUST UNITED AC 2020; 4:e2000081. [PMID: 33089652 DOI: 10.1002/adbi.202000081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 08/11/2020] [Indexed: 11/07/2022]
Abstract
The production of large scaffold-free tissues is a key challenge in regenerative medicine. Nowadays, temperature-responsive polymers allow intact tissue harvesting without needing proteolytic enzymes. This method is limited to tissue culture plastic with limited upscaling capacity and plain process control. Here, a thermoresponsive hollow fiber membrane bioreactor is presented to produce large scaffold-free tissues. Intact tissues, rich in cell-to-cell connections and ECM, are harvested from a poly(N-vinylcaprolactam) microgel functionalized poly(ether sulfone)/poly(vinylpyrrolidone) hollow fiber membrane by a temperature shift. The harvested 3D tissues adhere in successive cultivation and exhibit high vitality for several days. The facile adsorptive coating waives the need for extensive surface treatment. The research is anticipated to be a starting point for upscaling the production of interconnected tissues enabling new opportunities in regenerative medicine, large-scale drug screening on physiological relevant tissues, and potentially opening new chances in cell-based therapies.
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Affiliation(s)
- Suzana Djeljadini
- Aachener Verfahrenstechnik, Chair of Chemical Process Engineering, RWTH Aachen University, Forckenbeckstrasse 51, Aachen, 52074, Germany
- DWI-Leibniz Institute for Interactive Materials, Forckenbeckstraße 50, Aachen, 52074, Germany
| | - Theresa Lohaus
- Aachener Verfahrenstechnik, Chair of Chemical Process Engineering, RWTH Aachen University, Forckenbeckstrasse 51, Aachen, 52074, Germany
| | - Marcel Gausmann
- Aachener Verfahrenstechnik, Chair of Chemical Process Engineering, RWTH Aachen University, Forckenbeckstrasse 51, Aachen, 52074, Germany
| | - Sebastian Rauer
- Aachener Verfahrenstechnik, Chair of Chemical Process Engineering, RWTH Aachen University, Forckenbeckstrasse 51, Aachen, 52074, Germany
| | - Michael Kather
- Aachener Verfahrenstechnik, Chair of Chemical Process Engineering, RWTH Aachen University, Forckenbeckstrasse 51, Aachen, 52074, Germany
- DWI-Leibniz Institute for Interactive Materials, Forckenbeckstraße 50, Aachen, 52074, Germany
| | - Bernd Krause
- Baxter International Inc., Research and Development, Holger-Crafoord-Straße 26, Hechingen, 72379, Germany
| | - Andrij Pich
- DWI-Leibniz Institute for Interactive Materials, Forckenbeckstraße 50, Aachen, 52074, Germany
- Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Worringerweg 2, Aachen, 52074, Germany
| | - Martin Möller
- DWI-Leibniz Institute for Interactive Materials, Forckenbeckstraße 50, Aachen, 52074, Germany
| | - Matthias Wessling
- Aachener Verfahrenstechnik, Chair of Chemical Process Engineering, RWTH Aachen University, Forckenbeckstrasse 51, Aachen, 52074, Germany
- DWI-Leibniz Institute for Interactive Materials, Forckenbeckstraße 50, Aachen, 52074, Germany
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8
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Application of semi-permeable membrane for a scaffold in a nature-mimicking vascular system. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.118384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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9
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Zhao H, Shi Y, Yao Z, Liang L, Wang S, Liu Q, Jiang B, Sun Y. Phenol-formaldehyde resin route to the synthesis of several iron group transition metal phosphides. PHOSPHORUS SULFUR 2019. [DOI: 10.1080/10426507.2018.1550644] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Hanchuan Zhao
- Department of Petrochemical Engineering, College of Chemistry, Chemical Engineering and Environmental Engineering, Liaoning Shihua University, Fushun, P.R. China
| | - Yan Shi
- Department of Petrochemical Engineering, College of Chemistry, Chemical Engineering and Environmental Engineering, Liaoning Shihua University, Fushun, P.R. China
| | - Zhiwei Yao
- Department of Petrochemical Engineering, College of Chemistry, Chemical Engineering and Environmental Engineering, Liaoning Shihua University, Fushun, P.R. China
| | - Liying Liang
- Department of Petrochemical Engineering, College of Chemistry, Chemical Engineering and Environmental Engineering, Liaoning Shihua University, Fushun, P.R. China
| | - Siqi Wang
- Department of Petrochemical Engineering, College of Chemistry, Chemical Engineering and Environmental Engineering, Liaoning Shihua University, Fushun, P.R. China
| | - Qingyou Liu
- Key Laboratory of High-temperature and High-pressure Study of the Earth’s Interior, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, P.R. China
| | - Baojiang Jiang
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin, P.R. China
| | - Yue Sun
- Department of Petrochemical Engineering, College of Chemistry, Chemical Engineering and Environmental Engineering, Liaoning Shihua University, Fushun, P.R. China
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10
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Allan SJ, De Bank PA, Ellis MJ. Bioprocess Design Considerations for Cultured Meat Production With a Focus on the Expansion Bioreactor. FRONTIERS IN SUSTAINABLE FOOD SYSTEMS 2019. [DOI: 10.3389/fsufs.2019.00044] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
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11
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Jie M, Mao S, Liu H, He Z, Li HF, Lin JM. Evaluation of drug combination for glioblastoma based on an intestine-liver metabolic model on microchip. Analyst 2018; 142:3629-3638. [PMID: 28853486 DOI: 10.1039/c7an00453b] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
An intestine-liver-glioblastoma biomimetic system was developed to evaluate the drug combination therapy for glioblastoma. A hollow fiber (HF) was embedded into the upper layer of the microfluidic chip for culturing Caco-2 cells to mimic drug delivery as an artificial intestine. HepG2 cells cultured in the bottom chamber of the chip acted as an artificial liver for metabolizing the drugs. The dual-drug combination to glioblastoma U251 cells was evaluated based on the intestine-liver metabolic model. The drugs, irinotecan (CPT-11), temozolomide (TMZ) and cyclophosphamide (CP), were used to dynamically stimulate the cells by continuous infusion into the intestine unit. After intestine absorption and liver metabolism, the prodrugs were transformed to active metabolites, which induced glioblastoma cells apoptosis. The anticancer activity of the CPT-11 and TMZ combination is significantly enhanced compared to that of the single drug treatments. Combination index (CI) values of the combination groups, CPT-11 and TMZ, CPT-11 and CP, and TMZ and CP, at half maximal inhibitory concentration were 0.137, 0.288, and 0.482, respectively. The results indicated that the CPT-11 and TMZ combination was superior to the CPT-11 and CP group as well as the TMZ and CP group towards the U251 cells. The metabolism mechanism of CPT-11 and TMZ was further studied by coupling with mass spectrometric analysis. The biomimetic model enables the performance of long-term cell co-culture, drug delivery, metabolism and real-time analysis of drug effects, promising systematic in vitro mimicking of physiological and pharmacological processes.
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Affiliation(s)
- Mingsha Jie
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
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12
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Parisi L, Toffoli A, Ghiacci G, Macaluso GM. Tailoring the Interface of Biomaterials to Design Effective Scaffolds. J Funct Biomater 2018; 9:E50. [PMID: 30134538 PMCID: PMC6165026 DOI: 10.3390/jfb9030050] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 08/17/2018] [Accepted: 08/17/2018] [Indexed: 12/21/2022] Open
Abstract
Tissue engineering (TE) is a multidisciplinary science, which including principles from material science, biology and medicine aims to develop biological substitutes to restore damaged tissues and organs. A major challenge in TE is the choice of suitable biomaterial to fabricate a scaffold that mimics native extracellular matrix guiding resident stem cells to regenerate the functional tissue. Ideally, the biomaterial should be tailored in order that the final scaffold would be (i) biodegradable to be gradually replaced by regenerating new tissue, (ii) mechanically similar to the tissue to regenerate, (iii) porous to allow cell growth as nutrient, oxygen and waste transport and (iv) bioactive to promote cell adhesion and differentiation. With this perspective, this review discusses the options and challenges facing biomaterial selection when a scaffold has to be designed. We highlight the possibilities in the final mold the materials should assume and the most effective techniques for its fabrication depending on the target tissue, including the alternatives to ameliorate its bioactivity. Furthermore, particular attention has been given to the influence that all these aspects have on resident cells considering the frontiers of materiobiology. In addition, a focus on chitosan as a versatile biomaterial for TE scaffold fabrication has been done, highlighting its latest advances in the literature on bone, skin, cartilage and cornea TE.
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Affiliation(s)
- Ludovica Parisi
- Centro Universitario di Odontoiatria, Università degli Studi di Parma, Via Gramsci 14, 43126 Parma, Italy.
- Dipartimento di Medicina e Chirurgia, Università degli Studi di Parma, Via Gramsci 14, 43126 Parma, Italy.
| | - Andrea Toffoli
- Centro Universitario di Odontoiatria, Università degli Studi di Parma, Via Gramsci 14, 43126 Parma, Italy.
- Dipartimento di Medicina e Chirurgia, Università degli Studi di Parma, Via Gramsci 14, 43126 Parma, Italy.
| | - Giulia Ghiacci
- Centro Universitario di Odontoiatria, Università degli Studi di Parma, Via Gramsci 14, 43126 Parma, Italy.
- Dipartimento di Medicina e Chirurgia, Università degli Studi di Parma, Via Gramsci 14, 43126 Parma, Italy.
| | - Guido M Macaluso
- Centro Universitario di Odontoiatria, Università degli Studi di Parma, Via Gramsci 14, 43126 Parma, Italy.
- Dipartimento di Medicina e Chirurgia, Università degli Studi di Parma, Via Gramsci 14, 43126 Parma, Italy.
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Sánchez-González S, Diban N, Urtiaga A. Hydrolytic Degradation and Mechanical Stability of Poly(ε-Caprolactone)/Reduced Graphene Oxide Membranes as Scaffolds for In Vitro Neural Tissue Regeneration. MEMBRANES 2018; 8:E12. [PMID: 29510552 PMCID: PMC5872194 DOI: 10.3390/membranes8010012] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Revised: 02/23/2018] [Accepted: 03/01/2018] [Indexed: 01/24/2023]
Abstract
The present work studies the functional behavior of novel poly(ε-caprolactone) (PCL) membranes functionalized with reduced graphene oxide (rGO) nanoplatelets under simulated in vitro culture conditions (phosphate buffer solution (PBS) at 37 °C) during 1 year, in order to elucidate their applicability as scaffolds for in vitro neural regeneration. The morphological, chemical, and DSC results demonstrated that high internal porosity of the membranes facilitated water permeation and procured an accelerated hydrolytic degradation throughout the bulk pathway. Therefore, similar molecular weight reduction, from 80 kDa to 33 kDa for the control PCL, and to 27 kDa for PCL/rGO membranes, at the end of the study, was observed. After 1 year of hydrolytic degradation, though monomers coming from the hydrolytic cleavage of PCL diffused towards the PBS medium, the pH was barely affected, and the rGO nanoplatelets mainly remained in the membranes which envisaged low cytotoxic effect. On the other hand, the presence of rGO nanomaterials accelerated the loss of mechanical stability of the membranes. However, it is envisioned that the gradual degradation of the PCL/rGO membranes could facilitate cells infiltration, interconnectivity, and tissue formation.
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Affiliation(s)
- Sandra Sánchez-González
- Department of Chemical and Biomolecular Engineering, University of Cantabria, Avda. Los Castros s/n, 39005 Santander, Spain.
| | - Nazely Diban
- Department of Chemical and Biomolecular Engineering, University of Cantabria, Avda. Los Castros s/n, 39005 Santander, Spain.
| | - Ane Urtiaga
- Department of Chemical and Biomolecular Engineering, University of Cantabria, Avda. Los Castros s/n, 39005 Santander, Spain.
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14
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Diban N, Sánchez-González S, Lázaro-Díez M, Ramos-Vivas J, Urtiaga A. Facile fabrication of poly(ε-caprolactone)/graphene oxide membranes for bioreactors in tissue engineering. J Memb Sci 2017. [DOI: 10.1016/j.memsci.2017.06.052] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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15
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Eghbali H, Nava MM, Leonardi G, Mohebbi-Kalhori D, Sebastiano R, Samimi A, Raimondi MT. An experimental-numerical investigation on the effects of macroporous scaffold geometry on cell culture parameters. Int J Artif Organs 2017; 40:185-195. [PMID: 28430298 PMCID: PMC6159852 DOI: 10.5301/ijao.5000554] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/20/2017] [Indexed: 12/22/2022]
Abstract
INTRODUCTION Perfused bioreactors have been demonstrated to be effective in the delivery of nutrients and in the removal of waste products to and from the interior of cell-populated three-dimensional scaffolds. In this paper, a perfused bioreactor hosting a macroporous scaffold provided with a channel is used to investigate transport phenomena and culture parameters on cell growth. METHODS MG63 human osteosarcoma cells were seeded on macroporous poly(ε-caprolactone) scaffolds provided with a channel. The scaffolds were cultured in a perfused bioreactor and in static conditions for 5 days. Cell viability and growth were assessed while the concentration of oxygen, glucose and lactate were measured. An in silico, multiphysics, numerical model was set up to study the fluid dynamics and the mass transport of the nutrients in the perfused bioreactor hosting different scaffold geometries. RESULTS The experimental and numerical results indicated that the specific cell metabolic activity in scaffolds cultured under perfusion was 30% greater than scaffolds cultured under static conditions. In addition, the scaffold provided with a channel enabled the shear stress to be controlled, the initial seeding density to be retained, and adequate mass transport and waste removal. CONCLUSIONS We show that the macroporous scaffold provided with a channel cultured in a macroscale bioreactor can be a robust reference experimental model system to systematically investigate and assess crucial culture parameters. We also show that such an experimental model system can be employed as a simplified "representative unit" to improve the performance of both perfused culture systems and hollow, fiber-integrated scaffolds for large-scale tissue engineering.
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Affiliation(s)
- Hadis Eghbali
- Department of Chemical Engineering, University of Sistan and Baluchestan, Zahedan - Iran
| | - Michele M. Nava
- Giulio Natta Department of Chemistry, Materials and Chemical Engineering, Politecnico di Milano, Milan - Italy
| | - Gabriella Leonardi
- Giulio Natta Department of Chemistry, Materials and Chemical Engineering, Politecnico di Milano, Milan - Italy
| | - Davod Mohebbi-Kalhori
- Department of Chemical Engineering, University of Sistan and Baluchestan, Zahedan - Iran
| | - Roberto Sebastiano
- Giulio Natta Department of Chemistry, Materials and Chemical Engineering, Politecnico di Milano, Milan - Italy
| | - Abdolreza Samimi
- Department of Chemical Engineering, University of Sistan and Baluchestan, Zahedan - Iran
| | - Manuela T. Raimondi
- Giulio Natta Department of Chemistry, Materials and Chemical Engineering, Politecnico di Milano, Milan - Italy
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Jiang J, Li Z, Wang H, Wang Y, Carlson MA, Teusink MJ, MacEwan MR, Gu L, Xie J. Expanded 3D Nanofiber Scaffolds: Cell Penetration, Neovascularization, and Host Response. Adv Healthc Mater 2016; 5:2993-3003. [PMID: 27709840 PMCID: PMC5143187 DOI: 10.1002/adhm.201600808] [Citation(s) in RCA: 94] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 09/06/2016] [Indexed: 11/12/2022]
Abstract
Herein, a robust method to fabricate expanded nanofiber scaffolds with controlled size and thickness using a customized mold during the modified gas-foaming process is reported. The expansion of nanofiber membranes is also simulated using a computational fluid model. Expanded nanofiber scaffolds implanted subcutaneously in rats show cellular infiltration, whereas non-expanded scaffolds only have surface cellular attachment. Compared to unexpanded nanofiber scaffolds, more CD68+ and CD163+ cells are observed within expanded scaffolds at all tested time points post-implantation. More CCR7+ cells appear within expanded scaffolds at week 8 post-implantation. In addition, new blood vessels are present within the expanded scaffolds at week 2. The formed multinucleated giant cells within expanded scaffolds are heterogeneous expressing CD68, CCR7, or CD163 markers. Together, the present study demonstrates that the expanded nanofiber scaffolds promote cellular infiltration/tissue integration, a regenerative response, and neovascularization after subcutaneous implantation in rats. The use of expanded electrospun nanofiber scaffolds offers a promising method for in situ tissue repair/regeneration and generation of 3D tissue models/constructs.
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Affiliation(s)
- Jiang Jiang
- Department of Surgery-Transplant and Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
| | - Zhuoran Li
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, United States
| | - Hongjun Wang
- Department of Surgery-Transplant and Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
| | - Yue Wang
- Department of Surgery-Transplant and Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
| | - Mark A. Carlson
- Departments of Surgery and Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center, Omaha, Nebraska, 68198
- Department of Surgery, VA Nebraska–Western Iowa Health Care System, Omaha, Nebraska, 68105
| | - Matthew J. Teusink
- Department of Orthopedic Surgery and Rehabilitation, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
| | - Matthew R. MacEwan
- Department of Neurosurgery, Washington University School of Medicine, Saint Louis, Missouri, 63110, United States
| | - Linxia Gu
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, United States
| | - Jingwei Xie
- Department of Surgery-Transplant and Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
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Steg H, Buizer AT, Woudstra W, Veldhuizen AG, Bulstra SK, Grijpma DW, Kuijer R. Oxygen-releasing poly(trimethylene carbonate) microspheres for tissue engineering applications. POLYM ADVAN TECHNOL 2016. [DOI: 10.1002/pat.3919] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Hilde Steg
- University of Groningen, University Medical Center Groningen; Department of Biomedical Engineering (FB40); A. Deusinglaan 1 9713 AV Groningen The Netherlands
| | - Arina T Buizer
- University of Groningen, University Medical Center Groningen; Department of Orthopedic Surgery; Hanzeplein 1 9713 GZ Groningen The Netherlands
| | - Willem Woudstra
- University of Groningen, University Medical Center Groningen; Department of Biomedical Engineering (FB40); A. Deusinglaan 1 9713 AV Groningen The Netherlands
| | - Albert G Veldhuizen
- University of Groningen, University Medical Center Groningen; Department of Orthopedic Surgery; Hanzeplein 1 9713 GZ Groningen The Netherlands
| | - Sjoerd K Bulstra
- University of Groningen, University Medical Center Groningen; Department of Orthopedic Surgery; Hanzeplein 1 9713 GZ Groningen The Netherlands
| | - Dirk W Grijpma
- University of Groningen, University Medical Center Groningen; Department of Biomedical Engineering (FB40); A. Deusinglaan 1 9713 AV Groningen The Netherlands
- MIRA Institute for Biomedical Technology and Technical Medicine, Department of Biomaterials Science and Technology, Faculty of Science and Technology; University of Twente; PO Box 217 7500 AE Enschede The Netherlands
| | - Roel Kuijer
- University of Groningen, University Medical Center Groningen; Department of Biomedical Engineering (FB40); A. Deusinglaan 1 9713 AV Groningen The Netherlands
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Hollow fiber integrated microfluidic platforms for in vitro Co-culture of multiple cell types. Biomed Microdevices 2016; 18:88. [DOI: 10.1007/s10544-016-0102-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Aibibu D, Hild M, Wöltje M, Cherif C. Textile cell-free scaffolds for in situ tissue engineering applications. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2016; 27:63. [PMID: 26800694 PMCID: PMC4723636 DOI: 10.1007/s10856-015-5656-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Accepted: 12/20/2015] [Indexed: 05/12/2023]
Abstract
In this article, the benefits offered by micro-fibrous scaffold architectures fabricated by textile manufacturing techniques are discussed: How can established and novel fiber-processing techniques be exploited in order to generate templates matching the demands of the target cell niche? The problems related to the development of biomaterial fibers (especially from nature-derived materials) ready for textile manufacturing are addressed. Attention is also paid on how biological cues may be incorporated into micro-fibrous scaffold architectures by hybrid manufacturing approaches (e.g. nanofiber or hydrogel functionalization). After a critical review of exemplary recent research works on cell-free fiber based scaffolds for in situ TE, including clinical studies, we conclude that in order to make use of the whole range of favors which may be provided by engineered fibrous scaffold systems, there are four main issues which need to be addressed: (1) Logical combination of manufacturing techniques and materials. (2) Biomaterial fiber development. (3) Adaption of textile manufacturing techniques to the demands of scaffolds for regenerative medicine. (4) Incorporation of biological cues (e.g. stem cell homing factors).
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Affiliation(s)
- Dilbar Aibibu
- Technische Universität Dresden, Fakultät Maschinenwesen, Institut für Textilmaschinen und Textile Hochleistungswerkstofftechnik, 01062, Dresden, Germany.
| | - Martin Hild
- Technische Universität Dresden, Fakultät Maschinenwesen, Institut für Textilmaschinen und Textile Hochleistungswerkstofftechnik, 01062, Dresden, Germany
| | - Michael Wöltje
- Technische Universität Dresden, Fakultät Maschinenwesen, Institut für Textilmaschinen und Textile Hochleistungswerkstofftechnik, 01062, Dresden, Germany
| | - Chokri Cherif
- Technische Universität Dresden, Fakultät Maschinenwesen, Institut für Textilmaschinen und Textile Hochleistungswerkstofftechnik, 01062, Dresden, Germany
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Tuin SA, Pourdeyhimi B, Loboa EG. Creating tissues from textiles: scalable nonwoven manufacturing techniques for fabrication of tissue engineering scaffolds. ACTA ACUST UNITED AC 2016; 11:015017. [PMID: 26908485 DOI: 10.1088/1748-6041/11/1/015017] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Electrospun nonwovens have been used extensively for tissue engineering applications due to their inherent similarities with respect to fibre size and morphology to that of native extracellular matrix (ECM). However, fabrication of large scaffold constructs is time consuming, may require harsh organic solvents, and often results in mechanical properties inferior to the tissue being treated. In order to translate nonwoven based tissue engineering scaffold strategies to clinical use, a high throughput, repeatable, scalable, and economic manufacturing process is needed. We suggest that nonwoven industry standard high throughput manufacturing techniques (meltblowing, spunbond, and carding) can meet this need. In this study, meltblown, spunbond and carded poly(lactic acid) (PLA) nonwovens were evaluated as tissue engineering scaffolds using human adipose derived stem cells (hASC) and compared to electrospun nonwovens. Scaffolds were seeded with hASC and viability, proliferation, and differentiation were evaluated over the course of 3 weeks. We found that nonwovens manufactured via these industry standard, commercially relevant manufacturing techniques were capable of supporting hASC attachment, proliferation, and both adipogenic and osteogenic differentiation of hASC, making them promising candidates for commercialization and translation of nonwoven scaffold based tissue engineering strategies.
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Affiliation(s)
- S A Tuin
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, 4208 EB3, Campus Box 7115, Raleigh, NC 27695, USA
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Hollow fiber bioreactor technology for tissue engineering applications. Int J Artif Organs 2016; 39:1-15. [PMID: 26916757 DOI: 10.5301/ijao.5000466] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/18/2016] [Indexed: 12/11/2022]
Abstract
Hollow fiber bioreactors are the focus of scientific research aiming to mimic physiological vascular networks and engineer organs and tissues in vitro. The reason for this lies in the interesting features of this bioreactor type, including excellent mass transport properties. Indeed, hollow fiber bioreactors allow limitations to be overcome in nutrient transport by diffusion, which is often an obstacle to engineer sizable constructs in vitro. This work reviews the existing literature relevant to hollow fiber bioreactors in organ and tissue engineering applications. To this purpose, we first classify the hollow fiber bioreactors into 2 categories: cylindrical and rectangular. For each category, we summarize their main applications both at the tissue and at the organ level, focusing on experimental models and computational studies as predictive tools for designing innovative, dynamic culture systems. Finally, we discuss future perspectives on hollow fiber bioreactors as in vitro models for tissue and organ engineering applications.
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Kumar A, Starly B. Large scale industrialized cell expansion: producing the critical raw material for biofabrication processes. Biofabrication 2015; 7:044103. [DOI: 10.1088/1758-5090/7/4/044103] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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23
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Jacobs IN, Redden RA, Goldberg R, Hast M, Salowe R, Mauck RL, Doolin EJ. Pediatric laryngotracheal reconstruction with tissue-engineered cartilage in a rabbit model. Laryngoscope 2015; 126 Suppl 1:S5-21. [PMID: 26468093 DOI: 10.1002/lary.25676] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Revised: 08/05/2015] [Accepted: 08/21/2015] [Indexed: 01/06/2023]
Abstract
OBJECTIVES/HYPOTHESIS To develop an effective rabbit model of in vitro- and in vivo-derived tissue-engineered cartilage for laryngotracheal reconstruction (LTR). STUDY DESIGN 1) Determination of the optimal scaffold 1% hyaluronic acid (HA), 2% HA, and polyglycolic acid (PGA) and in vitro culture time course using a pilot study of 4 by 4-mm in vitro-derived constructs analyzed on a static culture versus zero-gravity bioreactor for 4, 8, and 12 weeks, with determination of compressive modulus and histology as outcome measures. 2) Three-stage survival rabbit experiment utilizing autologous auricular chondrocytes seeded in scaffolds, either 1% HA or PGA. The constructs were cultured for the determined in vitro time period and then cultured in vivo for 12 weeks. Fifteen LTRs were performed using HA cartilage constructs, and one was performed with a PGA construct. All remaining specimens and the final reconstructed larynx underwent mechanical testing, histology, and glycosaminoglycan (GAG) content determination, and then were compared to cricoid control specimens (n = 13) and control LTR using autologous thyroid cartilage (n = 18). METHODS 1) One rabbit underwent an auricular punch biopsy, and its chondrocytes were isolated and expanded and then encapsulated in eight 4 by 4-mm discs of 1% HA, 2% HA, PGA either in rotary bioreactor or static culture for 4, 8, and 12 weeks, respectively, with determination of compressive modulus, GAG content, and histology. 2) Sixteen rabbits underwent ear punch biopsy; chondrocytes were isolated and expanded. The cells were seeded in 13 by 5 by 2.25-mm UV photopolymerized 1% HA (w/w) or calcium alginate encapsulated synthetic PGA (13 × 5 × 2 mm); the constructs were then incubated in vitro for 12 weeks (the optimal time period determined above in paragraph 1) on a shaker. One HA and one PGA construct from each animal was tested mechanically and histologically, and the remaining eight (4 HA and 4 PGA) were implanted in the neck. After 12 weeks in vivo, the most optimal-appearing HA construct was used as a graft for LTR in 15 rabbits and PGA in one rabbit. The seven remaining specimens underwent hematoxylin and eosin, Safranin O, GAG content determination, and flexural modulus testing. At 12 weeks postoperative, the animals were euthanized and underwent endoscopy. The larynges underwent mechanical and histological testing. All animals that died underwent postmortem examination, including gross and microhistological analysis of the reconstructed airway. RESULTS Thirteen of the 15 rabbits that underwent LTR with HA in vitro- and in vivo-derived tissue-engineered cartilage constructs survived. The 1% HA specimens had the highest modulus and GAG after 12 weeks in vitro. The HA constructs became well integrated in the airway, supported respiration for the 12 weeks, and were histologically and mechanically similar to autologous cartilage. CONCLUSIONS The engineering of in vitro- and in vivo-derived cartilage with HA is a novel approach for laryngotracheal reconstruction. The data suggests that the in vitro- and in vivo-derived tissue-engineered approaches may offer a promising alternative to current strategies used in pediatric airway reconstruction, as well as other head and neck applications. LEVEL OF EVIDENCE NA. Laryngoscope, 126:S5-S21, 2016.
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Affiliation(s)
- Ian N Jacobs
- Children's Hospital of Philadelphia and the Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, U.S.A
| | - Robert A Redden
- Children's Hospital of Philadelphia and the Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, U.S.A
| | - Rachel Goldberg
- Children's Hospital of Philadelphia and the Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, U.S.A
| | - Michael Hast
- School of Engineering and Applied Sciences at the University of Pennsylvania, Philadelphia, Pennsylvania, U.S.A
| | - Rebecca Salowe
- School of Engineering and Applied Sciences at the University of Pennsylvania, Philadelphia, Pennsylvania, U.S.A
| | - Robert L Mauck
- School of Engineering and Applied Sciences at the University of Pennsylvania, Philadelphia, Pennsylvania, U.S.A
| | - Edward J Doolin
- Children's Hospital of Philadelphia and the Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, U.S.A
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Song K, Yan X, Zhang Y, Song F, Lim M, Fang M, Shi F, Wang L, Liu T. Numberical simulation of fluid flow and three-dimensional expansion of tissue engineering seed cells in large scale inside a novel rotating wall hollow fiber membrane bioreactor. Bioprocess Biosyst Eng 2015; 38:1527-40. [DOI: 10.1007/s00449-015-1395-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2014] [Accepted: 03/26/2015] [Indexed: 02/07/2023]
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25
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Sullivan DC, Repper JP, Frock AW, McFetridge PS, Petersen BE. Current Translational Challenges for Tissue Engineering: 3D Culture, Nanotechnology, and Decellularized Matrices. CURRENT PATHOBIOLOGY REPORTS 2015. [DOI: 10.1007/s40139-015-0066-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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26
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Zhang S, Chen L, Liu T, Wang Z, Wang Y. Integration of single-layer skin hollow fibers and scaffolds develops a three-dimensional hybrid bioreactor for bioartificial livers. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2014; 25:207-216. [PMID: 23963686 DOI: 10.1007/s10856-013-5033-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2013] [Accepted: 08/14/2013] [Indexed: 06/02/2023]
Abstract
Bioartificial liver support systems are expected to be an effective therapy as a "bridge" for liver transplantation or reversible acute liver disease. A major roadblock in the application of bioartificial livers is the need for a bioreactor that fully meets the requirements of hepatocyte culture, mass transfer and immunobarriers. In this study, we developed a three-dimensional hybrid bioreactor (3DHB) on a base of single-layer skin polyethersulfone hollow fibers by integrating with polyurethane scaffolds. The mass transfer of bilirubin and albumin from the intracapillary space to the extracapillary space of the hollow fibers was not significantly different between 3DHBs and hollow fiber bioreactors (HFBs). Cell viability staining showed that high-density hepatocytes were uniformly found in different regions of the 3DHB after 7 days of culture. Liver-specific functions of human mature hepatocytes cultured in the 3DHB, such as albumin secretion, urea production, ammonia removal rate and cytochrome P450 activity, were maintained stably and were significantly higher compared with the HFB. These results indicated that the 3DHB has good mass transfer and improves cell distribution and liver-specific functions. Meanwhile, the ammonia and unconjugated bilirubin concentrations in plasma from patients with liver failure were significantly decreased during 6 h of circulation by hepatocytes cultured in the 3DHB. Most hepatocytes in the 3DHB were viable after 6 h exposure to the patient plasma. We further demonstrated that bioartificial liver systems with 3DHB can remove toxins from and endure the deleterious effects of the patient plasma. Therefore, the 3DHB has the potential to accomplish different actions for the clinical application of bioartificial livers.
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Affiliation(s)
- Shichang Zhang
- Institute of Infectious Diseases, Southwest Hospital, Third Military Medical University, Chongqing, 400038, China,
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Jaeger AA, Das CK, Morgan NY, Pursley RH, McQueen PG, Hall MD, Pohida TJ, Gottesman MM. Microfabricated polymeric vessel mimetics for 3-D cancer cell culture. Biomaterials 2013; 34:8301-13. [PMID: 23911071 PMCID: PMC3759366 DOI: 10.1016/j.biomaterials.2013.07.013] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2013] [Accepted: 07/03/2013] [Indexed: 12/13/2022]
Abstract
Modeling tumor growth in vitro is essential for cost-effective testing of hypotheses in preclinical cancer research. 3-D cell culture offers an improvement over monolayer culture for studying cellular processes in cancer biology because of the preservation of cell-cell and cell-ECM interactions. Oxygen transport poses a major barrier to mimicking in vivo environments and is not replicated in conventional cell culture systems. We hypothesized that we can better mimic the tumor microenvironment using a bioreactor system for controlling gas exchange in cancer cell cultures with silicone hydrogel synthetic vessels. Soft-lithography techniques were used to fabricate oxygen-permeable silicone hydrogel membranes containing arrays of micropillars. These membranes were inserted into a bioreactor and surrounded by basement membrane extract (BME) within which fluorescent ovarian cancer (OVCAR8) cells were cultured. Cell clusters oxygenated by synthetic vessels showed a ∼100μm drop-off to anoxia, consistent with in vivo studies of tumor nodules fed by the microvasculature. Oxygen transport in the bioreactor system was characterized by experimental testing with a dissolved oxygen probe and finite element modeling of convective flow. Our study demonstrates differing growth patterns associated with controlling gas distributions to better mimic in vivo conditions.
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Affiliation(s)
- Ashley A. Jaeger
- Laboratory of Cell Biology, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
- Division of Computational Bioscience, Center for Information Technology, National Institutes of Health, Bethesda, MD, USA
| | - Chandan K. Das
- Laboratory of Cell Biology, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Nicole Y. Morgan
- National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD, USA
| | - Randall H. Pursley
- Division of Computational Bioscience, Center for Information Technology, National Institutes of Health, Bethesda, MD, USA
| | - Philip G. McQueen
- Division of Computational Bioscience, Center for Information Technology, National Institutes of Health, Bethesda, MD, USA
| | - Matthew D. Hall
- Laboratory of Cell Biology, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Thomas J. Pohida
- Division of Computational Bioscience, Center for Information Technology, National Institutes of Health, Bethesda, MD, USA
| | - Michael M. Gottesman
- Laboratory of Cell Biology, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
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Tuin SA, Pourdeyhimi B, Loboa EG. Interconnected, microporous hollow fibers for tissue engineering: Commercially relevant, industry standard scale-up manufacturing. J Biomed Mater Res A 2013. [DOI: 10.1002/jbm.a.35002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Stephen A. Tuin
- Joint Department of Biomedical Engineering; at the University of North Carolina at Chapel Hill and North Carolina State University; 4208B EBIII, CB 7115, 911 Oval Raleigh, NC 27695
| | - Behnam Pourdeyhimi
- Nonwovens Cooperative Research Center, The Nonwovens Institute, North Carolina State University; 1000 Main Campus Drive Raleigh North Carolina 27695
| | - Elizabeth G. Loboa
- Joint Department of Biomedical Engineering; at the University of North Carolina at Chapel Hill and North Carolina State University; 4208B EBIII, CB 7115, 911 Oval Raleigh, NC 27695
- Materials Science Engineering; North Carolina State University; EB1 911 Partners Way Raleigh North Carolina 27695
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29
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Chapin RE, Boekelheide K, Cortvrindt R, van Duursen MBM, Gant T, Jegou B, Marczylo E, van Pelt AMM, Post JN, Roelofs MJE, Schlatt S, Teerds KJ, Toppari J, Piersma AH. Assuring safety without animal testing: the case for the human testis in vitro. Reprod Toxicol 2013; 39:63-8. [PMID: 23612449 DOI: 10.1016/j.reprotox.2013.04.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2012] [Revised: 03/05/2013] [Accepted: 04/04/2013] [Indexed: 12/22/2022]
Abstract
From 15 to 17 June 2011, a dedicated workshop was held on the subject of in vitro models for mammalian spermatogenesis and their applications in toxicological hazard and risk assessment. The workshop was sponsored by the Dutch ASAT initiative (Assuring Safety without Animal Testing), which aims at promoting innovative approaches toward toxicological hazard and risk assessment on the basis of human and in vitro data, and replacement of animal studies. Participants addressed the state of the art regarding human and animal evidence for compound mediated testicular toxicity, reviewed existing alternative assay models, and brainstormed about future approaches, specifically considering tissue engineering. The workshop recognized the specific complexity of testicular function exemplified by dedicated cell types with distinct functionalities, as well as different cell compartments in terms of microenvironment and extracellular matrix components. This complexity hampers quick results in the realm of alternative models. Nevertheless, progress has been achieved in recent years, and innovative approaches in tissue engineering may open new avenues for mimicking testicular function in vitro. Although feasible, significant investment is deemed essential to be able to bring new ideas into practice in the laboratory. For the advancement of in vitro testicular toxicity testing, one of the most sensitive end points in regulatory reproductive toxicity testing, such an investment is highly desirable.
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Affiliation(s)
- Robert E Chapin
- Drug Safety R&D, Pfizer, Inc., Eastern Point Road, Groton, CT 06340, USA.
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Zhang S, Liu T, Chen L, Ren M, Zhang B, Wang Z, Wang Y. Bifunctional polyethersulfone hollow fiber with a porous, single-layer skin for use as a bioartificial liver bioreactor. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2012; 23:2001-2011. [PMID: 22584823 DOI: 10.1007/s10856-012-4673-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2012] [Accepted: 05/02/2012] [Indexed: 05/31/2023]
Abstract
A bioartificial liver bioreactor requires a bifunctional hollow fiber that is hemocompatible on one side and cytocompatible on the other side. In this study, we developed a single-layer skin polyethersulfone (PES) hollow fiber with smooth inner surface and rough/porous outer surface for an artificial liver bioreactor. The hemocompatibility of the inner surface was evaluated by hemolysis, complement activation and clotting time. The cytocompatibility of the outer surface with HepG2 cells was examined by morphology, proliferation and liver-specific functions. The inner surface of the PES hollow fiber exhibited lower hemolysis and complement activation than cellulose acetate (CA) hollow fiber and a prolonged blood coagulation time. HepG2 cells readily adhered to the outer surfaces of the PES hollow fibers, and proliferated to form multicellular aggregates with time. Furthermore, HepG2 cells cultured on the outer surface of the PES hollow fiber exhibited higher proliferation ability and liver-specific functions than those grown on the CA hollow fiber. These results suggest that the single-layer skin PES hollow fiber is a bifunctional hollow fiber with good hemocompatibility on the inner side and cytocompatibility on the outer side. Thus, porous and single-layer skin PES hollow fibers may have potential as materials for an artificial liver bioreactor.
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Affiliation(s)
- Shichang Zhang
- Institute of Infectious Diseases, Southwest Hospital, Third Military Medical University, Chongqing, China
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Mohebbi-Kalhori D, Behzadmehr A, Doillon CJ, Hadjizadeh A. Computational modeling of adherent cell growth in a hollow-fiber membrane bioreactor for large-scale 3-D bone tissue engineering. J Artif Organs 2012; 15:250-65. [PMID: 22610313 DOI: 10.1007/s10047-012-0649-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2011] [Accepted: 04/23/2012] [Indexed: 11/28/2022]
Abstract
The use of hollow-fiber membrane bioreactors (HFMBs) has been proposed for three-dimensional bone tissue growth at the clinical scale. However, to achieve an efficient HFMB design, the relationship between cell growth and environmental conditions must be determined. Therefore, in this work, a dynamic double-porous media model was developed to determine nutrient-dependent cell growth for bone tissue formation in a HFMB. The whole hollow-fiber scaffold within the bioreactor was treated as a porous domain in this model. The domain consisted of two interpenetrating porous regions, including a porous lumen region available for fluid flow and a porous extracapillary space filled with a collagen gel that contained adherent cells for promoting long-term growth into tissue-like mass. The governing equations were solved numerically and the model was validated using previously published experimental results. The contributions of several bioreactor design and process parameters to the performance of the bioreactor were studied. The results demonstrated that the process and design parameters of the HFMB significantly affect nutrient transport and thus cell behavior over a long period of culture. The approach presented here can be applied to any cell type and used to develop tissue engineering hollow-fiber scaffolds.
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Affiliation(s)
- Davod Mohebbi-Kalhori
- Department of Chemical Engineering-Biotechnology, Université de Sherbrooke, 2500, Boulevard de l'Université, Sherbrooke, QC J1K 2R1, Canada.
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Flaibani M, Elvassore N. Gas anti-solvent precipitation assisted salt leaching for generation of micro- and nano-porous wall in bio-polymeric 3D scaffolds. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2012; 32:1632-9. [PMID: 24364970 DOI: 10.1016/j.msec.2012.04.054] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2011] [Revised: 02/26/2012] [Accepted: 04/22/2012] [Indexed: 10/28/2022]
Abstract
The mass transport through biocompatible and biodegradable polymeric 3D porous scaffolds may be depleted by non-porous impermeable internal walls. As consequence the concentration of metabolites and growth factors within the scaffold may be heterogeneous leading to different cell fate depending on spatial cell location, and in some cases it may compromise cell survival. In this work, we fabricated polymeric scaffolds with micro- and nano-scale porosity by developing a new technique that couples two conventional scaffold production methods: solvent casting-salt leaching and gas antisolvent precipitation. 10-15 w/w solutions of a hyaluronic benzyl esters (HYAFF11) and poly-(lactic acid) (PLA) were used to fill packed beds of 0.177-0.425 mm NaCl crystals. The polymer precipitation in micro and nano-porous structures between the salt crystals was induced by high-pressure gas, then its flushing extracted the residual solvent. The salt was removed by water-wash. Morphological analysis by scanning electron microscopy showed a uniform porosity (~70%) and a high interconnectivity between porous. The polymeric walls were porous themselves counting for 30% of the total porosity. This wall porosity did not lead to a remarkable change in compressive modulus, deformation, and rupture pressure. Scaffold biocompatibility was tested with murine muscle cell line C2C12 for 4 and 7 days. Viability analysis and histology showed that micro- and nano-porous scaffolds are biocompatible and suitable for 3D cell culture promoting cell adhesion on the polymeric wall and allowing their proliferation in layers. Micro- and nano-scale porosities enhance cell migration and growth in the inner part of the scaffold.
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