151
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Ayres Pereira M, Chio IIC. Metastasis in Pancreatic Ductal Adenocarcinoma: Current Standing and Methodologies. Genes (Basel) 2019; 11:E6. [PMID: 31861620 PMCID: PMC7016631 DOI: 10.3390/genes11010006] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 12/11/2019] [Accepted: 12/17/2019] [Indexed: 01/18/2023] Open
Abstract
Pancreatic ductal adenocarcinoma is an extremely aggressive disease with a high metastatic potential. Most patients are diagnosed with metastatic disease, at which the five-year survival rate is only 3%. A better understanding of the mechanisms that drive metastasis is imperative for the development of better therapeutic interventions. Here, we take the reader through our current knowledge of the parameters that support metastatic progression in pancreatic ductal adenocarcinoma, and the experimental models that are at our disposal to study this process. We also describe the advantages and limitations of these models to study the different aspects of metastatic dissemination.
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Affiliation(s)
| | - Iok In Christine Chio
- Institute for Cancer Genetics, Department of Genetics and Development, Columbia University Medical Center, New York, NY 10032, USA;
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152
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Gilmour A, Poole-Warren L, Green RA. An Improved in vitro Model of Cortical Tissue. Front Neurosci 2019; 13:1349. [PMID: 31920510 PMCID: PMC6928009 DOI: 10.3389/fnins.2019.01349] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 12/02/2019] [Indexed: 11/20/2022] Open
Abstract
Intracortical electrodes for brain-machine interfaces rely on intimate contact with tissues for recording signals and stimulating neurons. However, the long-term viability of intracortical electrodes in vivo is poor, with a major contributing factor being the development of a glial scar. In vivo approaches for evaluating responses to intracortical devices are resource intensive and complex, making statistically significant, high throughput data difficult to obtain. In vitro models provide an alternative to in vivo studies; however, existing approaches have limitations which restrict the translation of the cellular reactions to the implant scenario. Notably, there is no current robust model that includes astrocytes, microglia, oligodendrocytes and neurons, the four principle cell types, critical to the health, function and wound responses of the central nervous system (CNS). In previous research a co-culture of primary mouse mature mixed glial cells and immature neural precursor cells were shown to mimic several key properties of the CNS response to implanted electrode materials. However, the method was not robust and took up to 63 days, significantly affecting reproducibility and widespread use for assessing brain-material interactions. In the current research a new co-culture approach has been developed and evaluated using immunocytochemistry and quantitative polymerase chain reaction (qPCR). The resulting method reduced the time in culture significantly and the culture model was shown to have a genetic signature similar to that of healthy adult mouse brain. This new robust CNS culture model has the potential to significantly improve the capacity to translate in vitro data to the in vivo responses.
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Affiliation(s)
- Aaron Gilmour
- Graduate School of Biomedical Engineering, University of New South Wales, Sydney, NSW, Australia
- Clem Jones Centre for Neurobiology and Stem Cell Research, Menzies Health Institute Queensland, Griffiths University, Gold Coast, QLD, Australia
| | - Laura Poole-Warren
- Graduate School of Biomedical Engineering, University of New South Wales, Sydney, NSW, Australia
| | - Rylie A Green
- Graduate School of Biomedical Engineering, University of New South Wales, Sydney, NSW, Australia
- Department of Bioengineering, Imperial College London, London, United Kingdom
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153
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Carbon-nanotube reinforcement of DNA-silica nanocomposites yields programmable and cell-instructive biocoatings. Nat Commun 2019; 10:5522. [PMID: 31797918 PMCID: PMC6892801 DOI: 10.1038/s41467-019-13381-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Accepted: 11/04/2019] [Indexed: 12/22/2022] Open
Abstract
Biomedical applications require substrata that allow for the grafting, colonization and control of eukaryotic cells. Currently available materials are often limited by insufficient possibilities for the integration of biological functions and means for tuning the mechanical properties. We report on tailorable nanocomposite materials in which silica nanoparticles are interwoven with carbon nanotubes by DNA polymerization. The modular, well controllable and scalable synthesis yields materials whose composition can be gradually adjusted to produce synergistic, non-linear mechanical stiffness and viscosity properties. The materials were exploited as substrata that outperform conventional culture surfaces in the ability to control cellular adhesion, proliferation and transmigration through the hydrogel matrix. The composite materials also enable the construction of layered cell architectures, the expansion of embryonic stem cells by simplified cultivation methods and the on-demand release of uniformly sized stem cell spheroids.
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154
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Nguyen M, De Ninno A, Mencattini A, Mermet-Meillon F, Fornabaio G, Evans SS, Cossutta M, Khira Y, Han W, Sirven P, Pelon F, Di Giuseppe D, Bertani FR, Gerardino A, Yamada A, Descroix S, Soumelis V, Mechta-Grigoriou F, Zalcman G, Camonis J, Martinelli E, Businaro L, Parrini MC. Dissecting Effects of Anti-cancer Drugs and Cancer-Associated Fibroblasts by On-Chip Reconstitution of Immunocompetent Tumor Microenvironments. Cell Rep 2019; 25:3884-3893.e3. [PMID: 30590056 DOI: 10.1016/j.celrep.2018.12.015] [Citation(s) in RCA: 97] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 08/06/2018] [Accepted: 12/03/2018] [Indexed: 01/16/2023] Open
Abstract
A major challenge in cancer research is the complexity of the tumor microenvironment, which includes the host immunological setting. Inspired by the emerging technology of organ-on-chip, we achieved 3D co-cultures in microfluidic devices (integrating four cell populations: cancer, immune, endothelial, and fibroblasts) to reconstitute ex vivo a human tumor ecosystem (HER2+ breast cancer). We visualized and quantified the complex dynamics of this tumor-on-chip, in the absence or in the presence of the drug trastuzumab (Herceptin), a targeted antibody therapy directed against the HER2 receptor. We uncovered the capacity of the drug trastuzumab to specifically promote long cancer-immune interactions (>50 min), recapitulating an anti-tumoral ADCC (antibody-dependent cell-mediated cytotoxicity) immune response. Cancer-associated fibroblasts (CAFs) antagonized the effects of trastuzumab. These observations constitute a proof of concept that tumors-on-chip are powerful platforms to study ex vivo immunocompetent tumor microenvironments, to characterize ecosystem-level drug responses, and to dissect the roles of stromal components.
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Affiliation(s)
- Marie Nguyen
- Institut Curie, Centre de Recherche, Paris Sciences et Lettres Research University, 75005 Paris, France; ART Group, INSERM U830, 75005 Paris, France
| | - Adele De Ninno
- Institute for Photonics and Nanotechnology, Italian National Research Council, 00156 Rome, Italy; Department of Civil Engineering and Computer Science, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Arianna Mencattini
- Department of Electronic Engineering, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Fanny Mermet-Meillon
- Institut Curie, Centre de Recherche, Paris Sciences et Lettres Research University, 75005 Paris, France; ART Group, INSERM U830, 75005 Paris, France
| | - Giulia Fornabaio
- Institut Curie, Centre de Recherche, Paris Sciences et Lettres Research University, 75005 Paris, France; ART Group, INSERM U830, 75005 Paris, France
| | - Sophia S Evans
- Institut Curie, Centre de Recherche, Paris Sciences et Lettres Research University, 75005 Paris, France; ART Group, INSERM U830, 75005 Paris, France
| | - Mélissande Cossutta
- Institut Curie, Centre de Recherche, Paris Sciences et Lettres Research University, 75005 Paris, France; ART Group, INSERM U830, 75005 Paris, France
| | - Yasmine Khira
- Institut Curie, Centre de Recherche, Paris Sciences et Lettres Research University, 75005 Paris, France; ART Group, INSERM U830, 75005 Paris, France
| | - Weijing Han
- Institut Curie, Centre de Recherche, Paris Sciences et Lettres Research University, 75005 Paris, France; ART Group, INSERM U830, 75005 Paris, France
| | - Philémon Sirven
- Institut Curie, Centre de Recherche, Paris Sciences et Lettres Research University, 75005 Paris, France; Immunity and Cancer, INSERM U932, INSERM Center of Clinical Investigations, CIC IGR Curie, 75005 Paris, France
| | - Floriane Pelon
- Institut Curie, Centre de Recherche, Paris Sciences et Lettres Research University, 75005 Paris, France; Stress and Cancer Team, labelized by Ligue Nationale Contre le Cancer, INSERM U830, 75005 Paris, France
| | - Davide Di Giuseppe
- Department of Electronic Engineering, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Francesca Romana Bertani
- Institute for Photonics and Nanotechnology, Italian National Research Council, 00156 Rome, Italy
| | - Annamaria Gerardino
- Institute for Photonics and Nanotechnology, Italian National Research Council, 00156 Rome, Italy
| | - Ayako Yamada
- Institut Curie, Centre de Recherche, Paris Sciences et Lettres Research University, 75005 Paris, France; Laboratoire Physico Chimie Curie, CNRS UMR168, 75005 Paris, France; Institut Pierre-Gilles de Gennes, 75005 Paris, France
| | - Stéphanie Descroix
- Institut Curie, Centre de Recherche, Paris Sciences et Lettres Research University, 75005 Paris, France; Laboratoire Physico Chimie Curie, CNRS UMR168, 75005 Paris, France; Institut Pierre-Gilles de Gennes, 75005 Paris, France
| | - Vassili Soumelis
- Institut Curie, Centre de Recherche, Paris Sciences et Lettres Research University, 75005 Paris, France; Immunity and Cancer, INSERM U932, INSERM Center of Clinical Investigations, CIC IGR Curie, 75005 Paris, France
| | - Fatima Mechta-Grigoriou
- Institut Curie, Centre de Recherche, Paris Sciences et Lettres Research University, 75005 Paris, France; Stress and Cancer Team, labelized by Ligue Nationale Contre le Cancer, INSERM U830, 75005 Paris, France
| | - Gérard Zalcman
- Institut Curie, Centre de Recherche, Paris Sciences et Lettres Research University, 75005 Paris, France; ART Group, INSERM U830, 75005 Paris, France; Centre d'Investigation Clinique (CIC) 1425, Hôpital Bichat-Claude Bernard, Université Paris-Diderot, Paris, France
| | - Jacques Camonis
- Institut Curie, Centre de Recherche, Paris Sciences et Lettres Research University, 75005 Paris, France; ART Group, INSERM U830, 75005 Paris, France
| | - Eugenio Martinelli
- Department of Electronic Engineering, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Luca Businaro
- Institute for Photonics and Nanotechnology, Italian National Research Council, 00156 Rome, Italy
| | - Maria Carla Parrini
- Institut Curie, Centre de Recherche, Paris Sciences et Lettres Research University, 75005 Paris, France; ART Group, INSERM U830, 75005 Paris, France.
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155
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Wang JZ, Zhu LL, Zhang F, Herman RA, Li WJ, Zhou XJ, Wu FA, Wang J. Microfluidic tools for lipid production and modification: a review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:35482-35496. [PMID: 31327140 DOI: 10.1007/s11356-019-05833-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 06/24/2019] [Indexed: 06/10/2023]
Abstract
Microfluidics has great potential as an efficient tool for a large range of applications in industry. The ability of such devices to deal with an extremely small amount of fluid has additional benefits, including superlatively fast and efficient mass and heat transfer. These characteristics of microfluidics have attracted an enormous amount of interest in their use as a novel tool for lipid production and modification. In addition, lipid resources have a close relationship with energy resources, and lipids are an alternative renewable energy source. Here, recent advances in the application of microfluidics for lipid production and modification, especially in the discovery, culturing, harvesting, separating, and monitoring of lipid-producing microorganisms, will be reviewed. Other applications of microfluidics, such as the modification of lipids from microorganisms, will also be discussed. The novel microfluidic tools in this review will be useful in applications to improve lipid production and modification in the future.
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Affiliation(s)
- Jin-Zheng Wang
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212018, People's Republic of China
| | - Lin-Lin Zhu
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212018, People's Republic of China
| | - Fan Zhang
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212018, People's Republic of China
| | - Richard Ansah Herman
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212018, People's Republic of China
| | - Wen-Jing Li
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212018, People's Republic of China
| | - Xue-Jiao Zhou
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212018, People's Republic of China
| | - Fu-An Wu
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212018, People's Republic of China
- Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, 212018, People's Republic of China
- Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture and Rural Affairs, Zhenjiang, 212018, People's Republic of China
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, Zhenjiang, 212018, People's Republic of China
| | - Jun Wang
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212018, People's Republic of China.
- Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, 212018, People's Republic of China.
- Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture and Rural Affairs, Zhenjiang, 212018, People's Republic of China.
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, Zhenjiang, 212018, People's Republic of China.
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156
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Jesorka A, Põldsalu I, Gözen I. Microfluidic technology for investigation of protein function in single adherent cells. Methods Enzymol 2019; 628:145-172. [PMID: 31668227 DOI: 10.1016/bs.mie.2019.07.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
Instrumental techniques and associated methods for single cell analysis, designed to investigate and measure a broad range of cellular parameters in search of unique features, address key limitations of conventional cell-based assays with their ensemble average response. While many different single cell techniques exist for suspension cultures, which can process and characterize large numbers of individual cells in rapid succession, the access to surface-immobilized cells in typical 2D and 3D culture environments remains challenging. Open space microfluidics has created new possibilities in this area, allowing for exclusive access to single cells in adherent cultures, even at high confluency. In this chapter, we briefly review new microtechnologies for the investigation of protein function in single adherent cells, and present an overview over related recent applications of the multifunctional pipette (Biopen), a microfluidic multi-solution dispensing system that uses hydrodynamic confinement in open volume environments in order to establish a superfusion zone over selected single cells in adherent cultures.
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Affiliation(s)
- Aldo Jesorka
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Göteborg, Sweden.
| | - Inga Põldsalu
- Centre for Molecular Medicine Norway, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Irep Gözen
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Göteborg, Sweden; Centre for Molecular Medicine Norway, Faculty of Medicine, University of Oslo, Oslo, Norway; Department of Chemistry, Faculty of Mathematics and Natural Sciences, University of Oslo, Oslo, Norway.
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157
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Sieber S, Grossen P, Bussmann J, Campbell F, Kros A, Witzigmann D, Huwyler J. Zebrafish as a preclinical in vivo screening model for nanomedicines. Adv Drug Deliv Rev 2019; 151-152:152-168. [PMID: 30615917 DOI: 10.1016/j.addr.2019.01.001] [Citation(s) in RCA: 86] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 12/23/2018] [Accepted: 01/02/2019] [Indexed: 12/11/2022]
Abstract
The interactions of nanomedicines with biological environments is heavily influenced by their physicochemical properties. Formulation design and optimization are therefore key steps towards successful nanomedicine development. Unfortunately, detailed assessment of nanomedicine formulations, at a macromolecular level, in rodents is severely limited by the restricted imaging possibilities within these animals. Moreover, rodent in vivo studies are time consuming and expensive, limiting the number of formulations that can be practically assessed in any one study. Consequently, screening and optimisation of nanomedicine formulations is most commonly performed in surrogate biological model systems, such as human-derived cell cultures. However, despite the time and cost advantages of classical in vitro models, these artificial systems fail to reflect and mimic the complex biological situation a nanomedicine will encounter in vivo. This has acutely hampered the selection of potentially successful nanomedicines for subsequent rodent in vivo studies. Recently, zebrafish have emerged as a promising in vivo model, within nanomedicine development pipelines, by offering opportunities to quickly screen nanomedicines under in vivo conditions and in a cost-effective manner so as to bridge the current gap between in vitro and rodent studies. In this review, we outline several advantageous features of the zebrafish model, such as biological conservation, imaging modalities, availability of genetic tools and disease models, as well as their various applications in nanomedicine development. Critical experimental parameters are discussed and the most beneficial applications of the zebrafish model, in the context of nanomedicine development, are highlighted.
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Affiliation(s)
- Sandro Sieber
- Division of Pharmaceutical Technology, Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
| | - Philip Grossen
- Division of Pharmaceutical Technology, Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
| | - Jeroen Bussmann
- Department of Supramolecular and Biomaterials Chemistry, Leiden Institute of Chemistry, Leiden University, Leiden, The Netherlands
| | - Frederick Campbell
- Department of Supramolecular and Biomaterials Chemistry, Leiden Institute of Chemistry, Leiden University, Leiden, The Netherlands
| | - Alexander Kros
- Department of Supramolecular and Biomaterials Chemistry, Leiden Institute of Chemistry, Leiden University, Leiden, The Netherlands
| | - Dominik Witzigmann
- Division of Pharmaceutical Technology, Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland; Department of Biochemistry and Molecular Biology, University of British Columbia, Health Sciences Mall, Vancouver, British Columbia, Canada..
| | - Jörg Huwyler
- Division of Pharmaceutical Technology, Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland.
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158
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Xenobiotica-metabolizing enzymes in the lung of experimental animals, man and in human lung models. Arch Toxicol 2019; 93:3419-3489. [PMID: 31673725 DOI: 10.1007/s00204-019-02602-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Accepted: 10/15/2019] [Indexed: 12/15/2022]
Abstract
The xenobiotic metabolism in the lung, an organ of first entry of xenobiotics into the organism, is crucial for inhaled compounds entering this organ intentionally (e.g. drugs) and unintentionally (e.g. work place and environmental compounds). Additionally, local metabolism by enzymes preferentially or exclusively occurring in the lung is important for favorable or toxic effects of xenobiotics entering the organism also by routes other than by inhalation. The data collected in this review show that generally activities of cytochromes P450 are low in the lung of all investigated species and in vitro models. Other oxidoreductases may turn out to be more important, but are largely not investigated. Phase II enzymes are generally much higher with the exception of UGT glucuronosyltransferases which are generally very low. Insofar as data are available the xenobiotic metabolism in the lung of monkeys comes closed to that in the human lung; however, very few data are available for this comparison. Second best rate the mouse and rat lung, followed by the rabbit. Of the human in vitro model primary cells in culture, such as alveolar macrophages and alveolar type II cells as well as the A549 cell line appear quite acceptable. However, (1) this generalization represents a temporary oversimplification born from the lack of more comparable data; (2) the relative suitability of individual species/models is different for different enzymes; (3) when more data become available, the conclusions derived from these comparisons quite possibly may change.
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159
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Kim JA, Hong S, Rhee WJ. Microfluidic three-dimensional cell culture of stem cells for high-throughput analysis. World J Stem Cells 2019; 11:803-816. [PMID: 31693013 PMCID: PMC6828593 DOI: 10.4252/wjsc.v11.i10.803] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 07/02/2019] [Accepted: 07/29/2019] [Indexed: 02/06/2023] Open
Abstract
Although the recent advances in stem cell engineering have gained a great deal of attention due to their high potential in clinical research, the applicability of stem cells for preclinical screening in the drug discovery process is still challenging due to difficulties in controlling the stem cell microenvironment and the limited availability of high-throughput systems. Recently, researchers have been actively developing and evaluating three-dimensional (3D) cell culture-based platforms using microfluidic technologies, such as organ-on-a-chip and organoid-on-a-chip platforms, and they have achieved promising breakthroughs in stem cell engineering. In this review, we start with a comprehensive discussion on the importance of microfluidic 3D cell culture techniques in stem cell research and their technical strategies in the field of drug discovery. In a subsequent section, we discuss microfluidic 3D cell culture techniques for high-throughput analysis for use in stem cell research. In addition, some potential and practical applications of organ-on-a-chip or organoid-on-a-chip platforms using stem cells as drug screening and disease models are highlighted.
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Affiliation(s)
- Jeong Ah Kim
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, Cheongju 28119, South Korea
- Department of Bio-Analytical Science, University of Science and Technology, Daejeon 34113, South Korea
| | - Soohyun Hong
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, Cheongju 28119, South Korea
- Program in Biomicro System Technology, Korea University, Seoul 02841, South Korea
| | - Won Jong Rhee
- Division of Bioengineering, Incheon National University, Incheon 22012, South Korea
- Department of Bioengineering and Nano-Bioengineering, Incheon National University, Incheon 22012, South Korea
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160
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Krüger M, Spee B, Walther A, De Laporte L, Kock LM. Nanofibrillar Cellulose as an Enzymatically and Flow Driven Degradable Scaffold for Three-Dimensional Tissue Engineering. ACTA ACUST UNITED AC 2019. [DOI: 10.1115/1.4044473] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Abstract
Nanofibrillar cellulose as a naturally biocompatible scaffold material is very promising for tissue engineering. It is shear thinning but has the downside of not being degradable in animals, it can only be degraded by cellulase enzymes. In this study, a newly developed bioreactor was used to culture fibroblast spheroids under flow conditions inside nanocellulose hydrogels with and without the presence of cellulase. The aim was to control the tissue size and ideally find a match between degradation and tissue formation within this promising material. Both the concentration of cellulase and the flow rate were varied and their influence on the activity and growth of fibroblast clusters was assessed. Cluster diameters, degradation, metabolic activity, and tissue production increase with higher cellulase concentration, although concentrations above 1 g/l does not have an additional benefit. Flow leads to more viable cells, more proliferation and migration, leading to overall larger tissue constructs compared to static conditions. This is most likely due to the shear thinning effect of flow on cellulose nanofibrils (CNFs) in addition to the increased nutrient supply through perfusion. At a constant cellulase concentration of 1 g/l, a flow of 2 ml/min proved to be optimal for tissue production. Therefore, degradation in combination with flow leads to more effective tissue production in CNF hydrogels, which is a very potent scaffold material for tissue engineering.
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Affiliation(s)
- Melanie Krüger
- LifeTec Group BV, Kennedyplein 10-11, Eindhoven 5611 ZS, The Netherlands; Veterinary Medicine, Universiteit Utrecht, Uppsalalaan 8, Utrecht 3584 CT, The Netherlands
| | - Bart Spee
- Veterinary Medicine, Universiteit Utrecht, Uppsalalaan 8, Utrecht 3584 CT, The Netherlands
| | - Andreas Walther
- Institute for Macromolecular Chemistry, Albert-Ludwigs-Universität Freiburg, Stefan-Meier-Strasse 3; Hermann Staudinger Building, Freiburg 79104, Germany
| | - Laura De Laporte
- DWI—Leibniz-Institut für Interaktive Materialien e.V., Advanced Materials for Biomedicine, Forckenbeckstr. 50, Aachen 52056, Germany; ITMC—Institute of Technical and Macromolecular Chemistry, RWTH University, Forckenbeckstr. 50, Aachen 52056, Germany
| | - Linda M. Kock
- LifeTec Group BV, Kennedyplein 10-11, Eindhoven 5611 ZS, The Netherlands
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161
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Cramer SM, Larson TS, Lockett MR. Tissue Papers: Leveraging Paper-Based Microfluidics for the Next Generation of 3D Tissue Models. Anal Chem 2019; 91:10916-10926. [PMID: 31356054 PMCID: PMC7071790 DOI: 10.1021/acs.analchem.9b02102] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Paper-based scaffolds support the three-dimensional culture of mammalian cells in tissue-like environments. These Tissue Papers, a name that highlights the use of materials obtained from (plant) tissue to generate newly functioning (human) tissue structures, are a promising analytical tool to quantify cellular responses in physiologically relevant extracellular gradients and coculture architectures. Here, we highlight current examples of Tissue Papers, commonly used methods of analysis, and current measurement challenges.
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Affiliation(s)
- Sabrina M. Cramer
- Department of Chemistry, University of North Carolina at Chapel Hill, Kenan and Caudill Laboratories, Chapel Hill, North Carolina 27599-3290, United States
| | - Tyler S. Larson
- Department of Chemistry, University of North Carolina at Chapel Hill, Kenan and Caudill Laboratories, Chapel Hill, North Carolina 27599-3290, United States
| | - Matthew R. Lockett
- Department of Chemistry, University of North Carolina at Chapel Hill, Kenan and Caudill Laboratories, Chapel Hill, North Carolina 27599-3290, United States
- Lineberger Comprehensive Cancer Center, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-7295, United States
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162
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Sonnen KF, Merten CA. Microfluidics as an Emerging Precision Tool in Developmental Biology. Dev Cell 2019; 48:293-311. [PMID: 30753835 DOI: 10.1016/j.devcel.2019.01.015] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 12/13/2018] [Accepted: 01/10/2019] [Indexed: 12/18/2022]
Abstract
Microfluidics has become a precision tool in modern biology. It enables omics data to be obtained from individual cells, as compared to averaged signals from cell populations, and it allows manipulation of biological specimens in entirely new ways. Cells and organisms can be perturbed at extraordinary spatiotemporal resolution, revealing mechanistic insights that would otherwise remain hidden. In this perspective article, we discuss the current and future impact of microfluidic technology in the field of developmental biology. In addition, we provide detailed information on how to start using this technology even without prior experience.
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Affiliation(s)
| | - Christoph A Merten
- Genome Biology Unit, European Molecular Biology Laboratory (EMBL), Heidelberg, Germany.
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163
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Natarajan A, Sethumadhavan A, Krishnan UM. Toward Building the Neuromuscular Junction: In Vitro Models To Study Synaptogenesis and Neurodegeneration. ACS OMEGA 2019; 4:12969-12977. [PMID: 31460423 PMCID: PMC6682064 DOI: 10.1021/acsomega.9b00973] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Accepted: 07/04/2019] [Indexed: 06/10/2023]
Abstract
The neuromuscular junction (NMJ) is a unique, specialized chemical synapse that plays a crucial role in transmitting and amplifying information from spinal motor neurons to skeletal muscles. NMJ complexity ensures closely intertwined interactions between numerous synaptic vesicles, signaling molecules, ion channels, motor neurons, glia, and muscle fibers, making it difficult to dissect the underlying mechanisms and factors affecting neurodegeneration and muscle loss. Muscle fiber or motor neuron cell death followed by rapid axonal degeneration due to injury or disease has a debilitating effect on movement and behavior, which adversely affects the quality of life. It thus becomes imperative to study the synapse and intercellular signaling processes that regulate plasticity at the NMJ and elucidate mechanisms and pathways at the cellular level. Studies using in vitro 2D cell cultures have allowed us to gain a fundamental understanding of how the NMJ functions. However, they do not provide information on the intricate signaling networks that exist between NMJs and the biological environment. The advent of 3D cell cultures and microfluidic lab-on-a-chip technologies has opened whole new avenues to explore the NMJ. In this perspective, we look at the challenges involved in building a functional NMJ and the progress made in generating models for studying the NMJ, highlighting the current and future applications of these models.
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Affiliation(s)
- Anupama Natarajan
- Centre
for Nanotechnology & Advanced Biomaterials (CeNTAB), School of Chemical
& Biotechnology, and School of Arts, Science & Humanities, SASTRA Deemed University, Thanjavur 613 401, India
| | - Anjali Sethumadhavan
- Centre
for Nanotechnology & Advanced Biomaterials (CeNTAB), School of Chemical
& Biotechnology, and School of Arts, Science & Humanities, SASTRA Deemed University, Thanjavur 613 401, India
| | - Uma Maheswari Krishnan
- Centre
for Nanotechnology & Advanced Biomaterials (CeNTAB), School of Chemical
& Biotechnology, and School of Arts, Science & Humanities, SASTRA Deemed University, Thanjavur 613 401, India
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164
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Lee SW, Hong S, Jung B, Jeong SY, Byeon JH, Jeong GS, Choi J, Hwang C. In vitro lung cancer multicellular tumor spheroid formation using a microfluidic device. Biotechnol Bioeng 2019; 116:3041-3052. [PMID: 31294818 DOI: 10.1002/bit.27114] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2018] [Revised: 04/05/2019] [Accepted: 06/04/2019] [Indexed: 01/20/2023]
Abstract
The purpose of this study was to demonstrate self-organizing in vitro multicellular tumor spheroid (MCTS) formation in a microfluidic system and to observe the behavior of MCTSs under controlled microenvironment. The employed microfluidic system was designed for simple and effective formation of MCTSs by generating nutrient and oxygen gradients. The MCTSs were composed of cancer cells, vascular endothelial cells, and type I collagen matrix to mimic the in vivo tumor microenvironment (TME). Cell culture medium was perfused to the microfluidic device loaded with MCTSs by a passive fluidic pump at a constant flow rate. The dose response to an MMPs inhibitor was investigated to demonstrate the effects of biochemical substances. The result of long-term stability of MCTSs revealed that continuous perfusion of cell culture medium is one of the major factors for the successful MCTS formation. A continuous flow of cell culture medium in the in vitro TME greatly affected both the proliferation of cancer cells in the micro-wells and the sustainability of the endothelial cell-layer integrity in the lumen of microfluidic channels. Addition of MMP inhibitor to the cell culture medium improved the stability of the collagen matrix by preventing the detachment and shrinkage of the collagen matrix surrounding the MCTSs. In summary, the present constant flow assisted microfluidic system is highly advantageous for long-term observation of the MCTS generation, tumorous tissue formation process and drug responses. MCTS formation in a microfluidic system may serve as a potent tool for studying drug screening, tumorigenesis and metastasis.
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Affiliation(s)
- Sang Woo Lee
- Biomedical Engineering Research Center, Asan Institute for Life Sciences, Asan Medical Center, Seoul, Republic of Korea
| | - Soyoung Hong
- Biomedical Engineering Research Center, Asan Institute for Life Sciences, Asan Medical Center, Seoul, Republic of Korea
| | - Boyoung Jung
- Biomedical Engineering Research Center, Asan Institute for Life Sciences, Asan Medical Center, Seoul, Republic of Korea
| | - Soo Yeon Jeong
- Biomedical Engineering Research Center, Asan Institute for Life Sciences, Asan Medical Center, Seoul, Republic of Korea
| | - Jae Hee Byeon
- Biomedical Engineering Research Center, Asan Institute for Life Sciences, Asan Medical Center, Seoul, Republic of Korea.,Department of Biomedical engineering, Asan Medical Institute of Convergence Science and Technology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Gi Seok Jeong
- Biomedical Engineering Research Center, Asan Institute for Life Sciences, Asan Medical Center, Seoul, Republic of Korea
| | - Jaesoon Choi
- Biomedical Engineering Research Center, Asan Institute for Life Sciences, Asan Medical Center, Seoul, Republic of Korea.,Department of Biomedical Engineering, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Changmo Hwang
- Biomedical Engineering Research Center, Asan Institute for Life Sciences, Asan Medical Center, Seoul, Republic of Korea.,Department of Convergence Medicine, University of Ulsan College of Medicine, Seoul, Republic of Korea
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165
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Geetha Bai R, Muthoosamy K, Manickam S, Hilal-Alnaqbi A. Graphene-based 3D scaffolds in tissue engineering: fabrication, applications, and future scope in liver tissue engineering. Int J Nanomedicine 2019; 14:5753-5783. [PMID: 31413573 PMCID: PMC6662516 DOI: 10.2147/ijn.s192779] [Citation(s) in RCA: 83] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 01/22/2019] [Indexed: 12/14/2022] Open
Abstract
Tissue engineering embraces the potential of recreating and replacing defective body parts by advancements in the medical field. Being a biocompatible nanomaterial with outstanding physical, chemical, optical, and biological properties, graphene-based materials were successfully employed in creating the perfect scaffold for a range of organs, starting from the skin through to the brain. Investigations on 2D and 3D tissue culture scaffolds incorporated with graphene or its derivatives have revealed the capability of this carbon material in mimicking in vivo environment. The porous morphology, great surface area, selective permeability of gases, excellent mechanical strength, good thermal and electrical conductivity, good optical properties, and biodegradability enable graphene materials to be the best component for scaffold engineering. Along with the apt microenvironment, this material was found to be efficient in differentiating stem cells into specific cell types. Furthermore, the scope of graphene nanomaterials in liver tissue engineering as a promising biomaterial is also discussed. This review critically looks into the unlimited potential of graphene-based nanomaterials in future tissue engineering and regenerative therapy.
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Affiliation(s)
- Renu Geetha Bai
- Nanotechnology and Advanced Materials (NATAM), Faculty of Science and Engineering, University of Nottingham Malaysia, Semenyih, Selangor, 43500, Malaysia
| | - Kasturi Muthoosamy
- Nanotechnology and Advanced Materials (NATAM), Faculty of Science and Engineering, University of Nottingham Malaysia, Semenyih, Selangor, 43500, Malaysia
| | - Sivakumar Manickam
- Nanotechnology and Advanced Materials (NATAM), Faculty of Science and Engineering, University of Nottingham Malaysia, Semenyih, Selangor, 43500, Malaysia
| | - Ali Hilal-Alnaqbi
- Electromechanical Technology, Abu Dhabi Polytechnic, Abu Dhabi, United Arab Emirates
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166
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Tan A, Lam YY, Pacot O, Hawley A, Boyd BJ. Probing cell-nanoparticle (cubosome) interactions at the endothelial interface: do tissue dimension and flow matter? Biomater Sci 2019; 7:3460-3470. [PMID: 31268062 DOI: 10.1039/c9bm00243j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
In the research field of nanostructured systems for biomedical applications, increasing attention has been paid to using biomimetic, dynamic cellular models to adequately predict their bio-nano behaviours. This work specifically evaluates the biointeractions of nanostructured lipid-based particles (cubosomes) with human vascular cells from the aspects of tissue dimension (conventional 2D well plate versus 3D dynamic tubular vasculature) and shear flow effect (static, venous and arterial flow-mimicking conditions). A glass capillary-hosted, 3D tubular endothelial construct was coupled with circulating luminal fluid flow to simulate the human vascular systems. In the absence of fluid flow, the degree of cell-cubosome association was not significantly different between the 2D planar and the 3D tubular systems. Under flow conditions simulating venous (0.8 dynes per cm2) and arterial (10 dynes per cm2) shear stresses, the cell-cubosome association notably declined by 50% and 98%, respectively. This highlights the significance of shear-guided biointeractions of non-targeted nanoparticles in the circulation. Across all 2D and 3D cellular models with and without flow, cubosomes had little effect on the cell-cell contact based on the unchanged immunoexpression of the endothelial-specific intercellular junction marker PECAM-1. Interestingly, there were dissimilar nanoparticle distribution patterns between the 2D planar (showing discrete punctate staining) and the 3D tubular endothelium (with a more diffused, patchy fashion). Taken together, these findings highlight the importance of tissue dimension and shear flow in governing the magnitude and feature of cell-nanoparticle interactions.
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Affiliation(s)
- Angel Tan
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University (Parkville Campus), 3052 Victoria, Australia. and ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash University (Parkville Campus), 3052 Victoria, Australia
| | - Yuen Yi Lam
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University (Parkville Campus), 3052 Victoria, Australia. and ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash University (Parkville Campus), 3052 Victoria, Australia
| | - Olivier Pacot
- Institute of Systems Engineering, School of Engineering, University of Applied Sciences and Arts Western Switzerland, 1950 Sion, Switzerland
| | - Adrian Hawley
- Australian Synchrotron, ANSTO, 3168 Victoria, Australia
| | - Ben J Boyd
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University (Parkville Campus), 3052 Victoria, Australia. and ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash University (Parkville Campus), 3052 Victoria, Australia
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167
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Cavero I, Guillon JM, Holzgrefe HH. Human organotypic bioconstructs from organ-on-chip devices for human-predictive biological insights on drug candidates. Expert Opin Drug Saf 2019; 18:651-677. [DOI: 10.1080/14740338.2019.1634689] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Icilio Cavero
- Independent Consultant in Safety Pharmacology, Paris, France
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168
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Wang Y, Shao Z, Zheng W, Xie Y, Luo G, Ding M, Liang Q. A 3D construct of the intestinal canal with wrinkle morphology on a centrifugation configuring microfluidic chip. Biofabrication 2019; 11:045001. [DOI: 10.1088/1758-5090/ab21b0] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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169
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Cortini M, Baldini N, Avnet S. New Advances in the Study of Bone Tumors: A Lesson From the 3D Environment. Front Physiol 2019; 10:814. [PMID: 31316395 PMCID: PMC6611422 DOI: 10.3389/fphys.2019.00814] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 06/11/2019] [Indexed: 01/10/2023] Open
Abstract
Bone primary tumors, such as osteosarcoma, are highly aggressive pediatric tumors that in 30% of the cases develop lung metastasis and are characterized by poor prognosis. Bone is also the third most common metastatic site in patients with advanced cancer and once tumor cells become homed to the skeleton, the disease is usually considered incurable, and treatment is only palliative. Bone sarcoma and bone metastasis share the same tissue microenvironment and niches. 3D cultures represent a new promising approach for the study of interactions between tumor cells and other cellular or acellular components of the tumor microenvironment (i.e., fibroblasts, mesenchymal stem cells, bone ECM). Indeed, 3D models can mimic physiological interactions that are crucial to modulate response to soluble paracrine factors, tumor drug resistance and aggressiveness and, in all, these innovative models might be able of bypassing the use of animal-based preclinical cancer models. To date, both static and dynamic 3D cell culture models have been shown to be particularly suited for screening of anticancer agents and might provide accurate information, translating in vitro cell cultures into precision medicine. In this mini-review, we will summarize the current state-of-the-art in the field of bone tumors, both primary and metastatic, illustrating the different methods and techniques employed to realize 3D cell culture systems and new results achieved in a field that paves the way toward personalized medicine.
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Affiliation(s)
- Margherita Cortini
- Orthopaedic Pathophysiology and Regenerative Medicine Unit, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Nicola Baldini
- Orthopaedic Pathophysiology and Regenerative Medicine Unit, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy.,Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Sofia Avnet
- Orthopaedic Pathophysiology and Regenerative Medicine Unit, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
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170
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Lee S, Lim J, Yu J, Ahn J, Lee Y, Jeon NL. Engineering tumor vasculature on an injection-molded plastic array 3D culture (IMPACT) platform. LAB ON A CHIP 2019; 19:2071-2080. [PMID: 31049508 DOI: 10.1039/c9lc00148d] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Recent advances in microfluidic organ-on-a-chip technology have enabled the growth of 3D microphysiological systems for diverse biological studies. Fabrication and usage limitations inherent to conventional soft lithographic polydimethylsiloxane (PDMS) based microfluidic platforms drive demands for more accessible, standardized, and mass producible platforms for wider applications. Here, we introduce a novel injection-molded plastic array 3D culture (IMPACT) platform, a microfluidic system designed for easy and diverse patterning of 3D cellular hydrogel. The flexibility of the IMPACT platform enabled simultaneous high-content morphological profiling of the effect of nine different types of tumor cells on vascular formation. Moreover, screening of three different known anti-tumor drugs (5-FU, axitinib and cetuximab) was done at various delivered dosages. We observed distinct and expected molecular mechanism dependent response on both tumor and vasculature in response to treatment, confirming the applicability of the IMPACT as high-content drug testing tool. Therefore, we propose IMPACT as the next generation of 3D microfluidic co-culture platform compatible with any biological, clinical, and pharmaceutical investigations requiring robust high-throughput and high-content assays.
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Affiliation(s)
- Somin Lee
- Program for Bioengineering, Seoul National University, Seoul, 08826, Republic of Korea.
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171
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Pollard KJ, Sharma AD, Moore MJ. Neural microphysiological systems for in vitro modeling of peripheral nervous system disorders. ACTA ACUST UNITED AC 2019. [DOI: 10.2217/bem-2019-0018] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
PNS disease pathology is diverse and underappreciated. Peripheral neuropathy may result in sensory, motor or autonomic nerve dysfunction and can be induced by metabolic dysfunction, inflammatory dysfunction, cytotoxic pharmaceuticals, rare hereditary disorders or may be idiopathic. Current preclinical PNS disease research relies heavily on the use of rodent models. In vivo methods are effective but too time-consuming and expensive for high-throughput experimentation. Conventional in vitro methods can be performed with high throughput but lack the biological complexity necessary to directly model in vivo nerve structure and function. In this review, we survey in vitro PNS model systems and propose that 3D-bioengineered microphysiological nerve tissue can improve in vitro–in vivo extrapolation and expand the capabilities of in vitro PNS disease modeling.
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Affiliation(s)
- Kevin J Pollard
- Department of Biomedical Engineering, Tulane University, New Orleans, LA 70118, USA
| | | | - Michael J Moore
- Department of Biomedical Engineering, Tulane University, New Orleans, LA 70118, USA
- AxoSim, Inc., New Orleans, LA 70112, USA
- Tulane Brain Institute, Tulane University, New Orleans, LA 70118, USA
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172
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Popova AA, Tronser T, Demir K, Haitz P, Kuodyte K, Starkuviene V, Wajda P, Levkin PA. Facile One Step Formation and Screening of Tumor Spheroids Using Droplet-Microarray Platform. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1901299. [PMID: 31058427 DOI: 10.1002/smll.201901299] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Indexed: 05/10/2023]
Abstract
Tumor spheroids or microtumors are important 3D in vitro tumor models that closely resemble a tumor's in vivo "microenvironment" compared to 2D cell culture. Microtumors are widely applied in the fields of fundamental cancer research, drug discovery, and precision medicine. In precision medicine tumor spheroids derived from patient tumor cells represent a promising system for drug sensitivity and resistance testing. Established and commonly used platforms for routine screenings of cell spheroids, based on microtiter plates of 96- and 384-well formats, require relatively large numbers of cells and compounds, and often lead to the formation of multiple spheroids per well. In this study, an application of the Droplet Microarray platform, based on hydrophilic-superhydrophobic patterning, in combination with the method of hanging droplet, is demonstrated for the formation of highly miniaturized single-spheroid-microarrays. Formation of spheroids from several commonly used cancer cell lines in 100 nL droplets starting with as few as 150 cells per spheroid within 24-48 h is demonstrated. Established methodology carries a potential to be adopted for routine workflows of high-throughput compound screening in 3D cancer spheroids or microtumors, which is crucial for the fields of fundamental cancer research, drug discovery, and precision medicine.
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Affiliation(s)
- Anna A Popova
- Karlsruhe Institute of Technology, Institute of Toxicology and Genetics, Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Tina Tronser
- Karlsruhe Institute of Technology, Institute of Toxicology and Genetics, Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Konstantin Demir
- Karlsruhe Institute of Technology, Institute of Toxicology and Genetics, Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - P Haitz
- Karlsruhe Institute of Technology, Institute of Toxicology and Genetics, Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Karolina Kuodyte
- BioQuant, Heidelberg University, Im Neuenheimer Feld 267, D-69120, Heidelberg, Germany
| | - Vytaute Starkuviene
- BioQuant, Heidelberg University, Im Neuenheimer Feld 267, D-69120, Heidelberg, Germany
- Institute of Biosciences, Vilnius University Life Sciences Centre, Sauletekio av. 7, 10257, Vilnius, Lithuania
| | - Piotr Wajda
- BioQuant, Heidelberg University, Im Neuenheimer Feld 267, D-69120, Heidelberg, Germany
| | - Pavel A Levkin
- Karlsruhe Institute of Technology, Institute of Toxicology and Genetics, Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
- Karlsruhe Institute of Technology, Institute of Organic Chemistry, Fritz-Haber Weg 6, 76131, Karlsruhe, Germany
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173
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Ragelle H, Goncalves A, Kustermann S, Antonetti DA, Jayagopal A. Organ-On-A-Chip Technologies for Advanced Blood-Retinal Barrier Models. J Ocul Pharmacol Ther 2019; 36:30-41. [PMID: 31140899 PMCID: PMC6985766 DOI: 10.1089/jop.2019.0017] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Accepted: 04/02/2019] [Indexed: 12/16/2022] Open
Abstract
The blood-retinal barrier (BRB) protects the retina by maintaining an adequate microenvironment for neuronal function. Alterations of the junctional complex of the BRB and consequent BRB breakdown in disease contribute to a loss of neuronal signaling and vision loss. As new therapeutics are being developed to prevent or restore barrier function, it is critical to implement physiologically relevant in vitro models that recapitulate the important features of barrier biology to improve disease modeling, target validation, and toxicity assessment. New directions in organ-on-a-chip technology are enabling more sophisticated 3-dimensional models with flow, multicellularity, and control over microenvironmental properties. By capturing additional biological complexity, organs-on-chip can help approach actual tissue organization and function and offer additional tools to model and study disease compared with traditional 2-dimensional cell culture. This review describes the current state of barrier biology and barrier function in ocular diseases, describes recent advances in organ-on-a-chip design for modeling the BRB, and discusses the potential of such models for ophthalmic drug discovery and development.
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Affiliation(s)
- Héloïse Ragelle
- Pharma Research and Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Basel, Switzerland
| | - Andreia Goncalves
- Department of Ophthalmology and Visual Sciences, Kellogg Eye Center, University of Michigan, Ann Harbor, Michigan
| | - Stefan Kustermann
- Pharma Research and Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Basel, Switzerland
| | - David A. Antonetti
- Department of Ophthalmology and Visual Sciences, Kellogg Eye Center, University of Michigan, Ann Harbor, Michigan
| | - Ashwath Jayagopal
- Pharma Research and Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Basel, Switzerland
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174
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Lee SR, Hyung S, Bang S, Lee Y, Ko J, Lee S, Kim HJ, Jeon NL. Modeling neural circuit, blood–brain barrier, and myelination on a microfluidic 96 well plate. Biofabrication 2019; 11:035013. [DOI: 10.1088/1758-5090/ab1402] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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175
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Mechanobiology of Cancer Stem Cells and Their Niche. CANCER MICROENVIRONMENT 2019; 12:17-27. [PMID: 31004332 DOI: 10.1007/s12307-019-00222-4] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Accepted: 04/10/2019] [Indexed: 01/25/2023]
Abstract
Though the existence of cancer stem cells remained enigmatic initially, over the time their participation in tumorigenesis and tumor progression has become highly evident. Today, they are also appreciated as the causal element for tumor heterogeneity and drug-resistance. Cancer stem cells activate a set of molecular pathways some of which are triggered by the unique mechanical properties of the tumor tissue stroma. A relatively new field called mechanobiology has emerged, which aims to critically evaluate the mechanical properties associated with biological events like tissue morphogenesis, cell-cell or cell-matrix interactions, cellular migration and also the development and progression of cancer. Development of more realistic model systems and biophysical instrumentation for observation and manipulation of cell-dynamics in real-time has invoked a hope for some novel therapeutic modalities against cancer in the future. This review discusses the fundamental concepts of cancer stem cells from an intriguing viewpoint of mechanobiology and some important breakthroughs to date.
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176
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Virumbrales-Muñoz M, Ayuso JM, Lacueva A, Randelovic T, Livingston MK, Beebe DJ, Oliván S, Pereboom D, Doblare M, Fernández L, Ochoa I. Enabling cell recovery from 3D cell culture microfluidic devices for tumour microenvironment biomarker profiling. Sci Rep 2019; 9:6199. [PMID: 30996291 PMCID: PMC6470149 DOI: 10.1038/s41598-019-42529-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 04/03/2019] [Indexed: 01/20/2023] Open
Abstract
The tumour microenvironment (TME) has recently drawn much attention due to its profound impact on tumour development, drug resistance and patient outcome. There is an increasing interest in new therapies that target the TME. Nonetheless, most established in vitro models fail to include essential cues of the TME. Microfluidics can be used to reproduce the TME in vitro and hence provide valuable insight on tumour evolution and drug sensitivity. However, microfluidics remains far from well-established mainstream molecular and cell biology methods. Therefore, we have developed a quick and straightforward collagenase-based enzymatic method to recover cells embedded in a 3D hydrogel in a microfluidic device with no impact on cell viability. We demonstrate the validity of this method on two different cell lines in a TME microfluidic model. Cells were successfully retrieved with high viability, and we characterised the different cell death mechanisms via AMNIS image cytometry in our model.
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Affiliation(s)
- María Virumbrales-Muñoz
- Department of Biomedical Engineering, Wisconsin Institutes for Medical Research, University of Wisconsin-Madison, 1111 Highland Avenue, Madison, Wisconsin, 53705, United States
| | - Jose M Ayuso
- Department of Biomedical Engineering, Wisconsin Institutes for Medical Research, University of Wisconsin-Madison, 1111 Highland Avenue, Madison, Wisconsin, 53705, United States.,Medical Engineering, Morgridge Institute for Research, 330 N Orchard street, Madison, WI, 53715, USA
| | - Alodia Lacueva
- Group of Applied Mechanics and Bioengineering (AMB), Aragón Institute of Engineering Research (I3A), University of Zaragoza, Zaragoza, Spain.,Centro Investigacion Biomedica en Red. Bioingenieria, biomateriales y nanomedicina (CIBER-BBN), Madrid, Spain.,Aragon Institute for Health Research (IIS Aragón), Instituto de Salud Carlos III, Zaragoza, Spain
| | - Teodora Randelovic
- Group of Applied Mechanics and Bioengineering (AMB), Aragón Institute of Engineering Research (I3A), University of Zaragoza, Zaragoza, Spain.,Centro Investigacion Biomedica en Red. Bioingenieria, biomateriales y nanomedicina (CIBER-BBN), Madrid, Spain.,Aragon Institute for Health Research (IIS Aragón), Instituto de Salud Carlos III, Zaragoza, Spain
| | - Megan K Livingston
- Department of Biomedical Engineering, Wisconsin Institutes for Medical Research, University of Wisconsin-Madison, 1111 Highland Avenue, Madison, Wisconsin, 53705, United States.,Department of Chemistry, University of Wisconsin-Madison, Madison, USA
| | - David J Beebe
- Department of Biomedical Engineering, Wisconsin Institutes for Medical Research, University of Wisconsin-Madison, 1111 Highland Avenue, Madison, Wisconsin, 53705, United States.,Department of Pathology and Laboratory Medicine, University of Wisconsin-Madison, 1111 Highland Avenue, Madison, Wisconsin, 53705, United States
| | - Sara Oliván
- Group of Applied Mechanics and Bioengineering (AMB), Aragón Institute of Engineering Research (I3A), University of Zaragoza, Zaragoza, Spain.,Centro Investigacion Biomedica en Red. Bioingenieria, biomateriales y nanomedicina (CIBER-BBN), Madrid, Spain.,Aragon Institute for Health Research (IIS Aragón), Instituto de Salud Carlos III, Zaragoza, Spain
| | - Desirée Pereboom
- Servicio General de Apoyo a la Investigación de Citómica, University of Zaragoza, Zaragoza, Spain
| | - Manuel Doblare
- Group of Applied Mechanics and Bioengineering (AMB), Aragón Institute of Engineering Research (I3A), University of Zaragoza, Zaragoza, Spain.,Centro Investigacion Biomedica en Red. Bioingenieria, biomateriales y nanomedicina (CIBER-BBN), Madrid, Spain.,Aragon Institute for Health Research (IIS Aragón), Instituto de Salud Carlos III, Zaragoza, Spain
| | - Luis Fernández
- Group of Applied Mechanics and Bioengineering (AMB), Aragón Institute of Engineering Research (I3A), University of Zaragoza, Zaragoza, Spain.,Centro Investigacion Biomedica en Red. Bioingenieria, biomateriales y nanomedicina (CIBER-BBN), Madrid, Spain.,Aragon Institute for Health Research (IIS Aragón), Instituto de Salud Carlos III, Zaragoza, Spain
| | - Ignacio Ochoa
- Group of Applied Mechanics and Bioengineering (AMB), Aragón Institute of Engineering Research (I3A), University of Zaragoza, Zaragoza, Spain. .,Centro Investigacion Biomedica en Red. Bioingenieria, biomateriales y nanomedicina (CIBER-BBN), Madrid, Spain. .,Aragon Institute for Health Research (IIS Aragón), Instituto de Salud Carlos III, Zaragoza, Spain.
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177
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Uhl CG, Liu Y. Microfluidic device for expedited tumor growth towards drug evaluation. LAB ON A CHIP 2019; 19:1458-1470. [PMID: 30888358 PMCID: PMC6526058 DOI: 10.1039/c8lc01250d] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Patient derived organoids have emerged as robust preclinical models for screening anti-cancer therapeutics. Current 2D culturing methods do not provide physiological responses to therapeutics, therefore 3D models are being developed to better reproduce physiological responses. 3D culturing however often requires large initial cell populations and one week to one month to grow tumors ready for therapeutic testing. As a solution a 3D culturing system has been developed capable of producing physiologically relevant tumors in an expedited fashion while only requiring a small number of initial cancer cells. A bi-layer microfluidic system capable of facilitating active convective nutrient supply to populations of cancer cells facilitates expedited growth of cancer cells when starting with populations as small as 8 cells. The system has been shown to function well with adherent and non-adherent cell types by expediting cell growth by a factor ranging from 1.27 to 4.76 greater than growth under static conditions. Utilizing such an approach has enable to formation of tumors ready for therapeutic screening within 3 days and the ability to perform therapeutic screening within the microfluidic system is demonstrated. A mathematical model has been developed which allows for adjustments to be made to the dynamic delivery of nutrients in order to efficiently use culture media without excessive waste. We believe this work to be the first attempt to grow cancers in an expedited fashion utilizing only a convective nutrient supply within a microfluidic system which also facilitates on-device therapeutic screening. The developed microfluidic system and cancer growth method have the potential to offer improved drug screening for patients in clinical settings.
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178
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St-Georges-Robillard A, Cahuzac M, Péant B, Fleury H, Lateef MA, Ricard A, Sauriol A, Leblond F, Mes-Masson AM, Gervais T. Long-term fluorescence hyperspectral imaging of on-chip treated co-culture tumour spheroids to follow clonal evolution. Integr Biol (Camb) 2019; 11:130-141. [PMID: 31172192 DOI: 10.1093/intbio/zyz012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 03/09/2019] [Accepted: 05/30/2019] [Indexed: 12/22/2022]
Abstract
Multicellular tumour spheroids are an ideal in vitro tumour model to study clonal heterogeneity and drug resistance in cancer research because different cell types can be mixed at will. However, measuring the individual response of each cell population over time is challenging: current methods are either destructive, such as flow cytometry, or cannot image throughout a spheroid, such as confocal microscopy. Our group previously developed a wide-field fluorescence hyperspectral imaging system to study spheroids formed and cultured in microfluidic chips. In the present study, two subclones of a single parental ovarian cancer cell line transfected to express different fluorophores were produced and co-culture spheroids were formed on-chip using ratios forming highly asymmetric subpopulations. We performed a 3D proliferation assay on each cell population forming the spheroids that matched the 2D growth behaviour. Response assays to PARP inhibitors and platinum-based drugs were also performed to follow the clonal evolution of mixed populations. Our experiments show that hyperspectral imaging can detect spheroid response before observing a decrease in spheroid diameter. Hyperspectral imaging and microfluidic-based spheroid assays provide a versatile solution to study clonal heterogeneity, able to measure response in subpopulations presenting as little as 10% of the initial spheroid.
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Affiliation(s)
- Amélie St-Georges-Robillard
- Polytechnique Montréal, Department of Engineering Physics and Institute of Biomedical Engineering, Montreal, Canada
- Centre de recherche du Centre hospitalier de l'Université de Montréal and Institut du cancer de Montréal, Montreal, Canada
| | - Maxime Cahuzac
- Centre de recherche du Centre hospitalier de l'Université de Montréal and Institut du cancer de Montréal, Montreal, Canada
| | - Benjamin Péant
- Centre de recherche du Centre hospitalier de l'Université de Montréal and Institut du cancer de Montréal, Montreal, Canada
- TransMedTech Institute, Montréal, Canada
| | - Hubert Fleury
- Centre de recherche du Centre hospitalier de l'Université de Montréal and Institut du cancer de Montréal, Montreal, Canada
| | - Muhammad Abdul Lateef
- Centre de recherche du Centre hospitalier de l'Université de Montréal and Institut du cancer de Montréal, Montreal, Canada
| | - Alexis Ricard
- Centre de recherche du Centre hospitalier de l'Université de Montréal and Institut du cancer de Montréal, Montreal, Canada
| | - Alexandre Sauriol
- Centre de recherche du Centre hospitalier de l'Université de Montréal and Institut du cancer de Montréal, Montreal, Canada
| | - Frédéric Leblond
- Polytechnique Montréal, Department of Engineering Physics and Institute of Biomedical Engineering, Montreal, Canada
- Centre de recherche du Centre hospitalier de l'Université de Montréal and Institut du cancer de Montréal, Montreal, Canada
| | - Anne-Marie Mes-Masson
- Centre de recherche du Centre hospitalier de l'Université de Montréal and Institut du cancer de Montréal, Montreal, Canada
- Université de Montréal, Department of Medicine, Montreal, Canada
| | - Thomas Gervais
- Polytechnique Montréal, Department of Engineering Physics and Institute of Biomedical Engineering, Montreal, Canada
- Centre de recherche du Centre hospitalier de l'Université de Montréal and Institut du cancer de Montréal, Montreal, Canada
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179
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St-Georges-Robillard A, Masse M, Cahuzac M, Strupler M, Patra B, Orimoto AM, Kendall-Dupont J, Péant B, Mes-Masson AM, Leblond F, Gervais T. Fluorescence hyperspectral imaging for live monitoring of multiple spheroids in microfluidic chips. Analyst 2019; 143:3829-3840. [PMID: 29999046 DOI: 10.1039/c8an00536b] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Tumor spheroids represent a realistic 3D in vitro cancer model because they provide a missing link between monolayer cell culture and live tissues. While microfluidic chips can easily form and assay thousands of spheroids simultaneously, few commercial instruments are available to analyze this massive amount of data. Available techniques to measure spheroid response to external stimuli, such as confocal imaging and flow cytometry, are either not appropriate for 3D cultures, or destructive. We designed a wide-field hyperspectral imaging system to analyze multiple spheroids trapped in a microfluidic chip in a single acquisition. The system and its fluorescence quantification algorithm were assessed using liquid phantoms mimicking spheroid optical properties. Spectral unmixing was tested on three overlapping spectral entities. Hyperspectral images of co-culture spheroids expressing two fluorophores were compared with confocal microscopy and spheroid growth was measured over time. The system can spectrally analyze multiple fluorescent markers simultaneously and allows multiple time-points assays, providing a fast and versatile solution for analyzing lab on a chip devices.
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Affiliation(s)
- Amélie St-Georges-Robillard
- Department of Engineering Physics, Polytechnique Montréal, C.P. 6079, Succ. Centre-ville, Montreal, Qc H3C 3A7, Canada.
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180
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Bianco M, Zizzari A, Priore P, Moroni L, Metrangolo P, Frigione M, Rella R, Gaballo A, Arima V. Lab-on-a-brane for spheroid formation. Biofabrication 2019; 11:021002. [PMID: 30776782 DOI: 10.1088/1758-5090/ab0813] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Lab-On-a-Brane (LOB) represents a class of Lab-On-a-Chip (LOC) integrating flexible, highly gas permeable and biocompatible thin membranes (TMs). Here we demonstrate the potentiality of LOBs as cell biochips promoting 3D cell growth. The human cancer cells MCF-7 were cultured into standard multiwells (MWs) and into polydimethylsiloxane (PDMS) MWs, LOCs, and LOBs of different wettability. Surface treatments based on oxygen plasma and coating deposition have been performed to produce hydrophilic, hydrophobic, and oleophobic chips. By a comparison between all these chips, we observed that 3D cell aggregation is favored in LOBs, independent of substrate wettability. This may be attributed to the TM flexibility and the high oxygen/carbon dioxide permeability. Ultimately, LOBs seem to combine the advantages of LOCs as multi-well microfluidic chips to reduce operation time for cell seeding and medium refresh, with the mechanical/morphological properties of PDMS TMs. This is convenient in the perspective of applying mechanical stimuli and monitoring cell stiffness, or studying the metabolism of molecules permeable to PDMS membrane in response to external stimuli with interesting outcomes in cellular biology.
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Affiliation(s)
- M Bianco
- CNR-NANOTEC, Institute of Nanotechnology c/o Campus Ecotekne, Lecce, Italy
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181
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182
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Lee SH, Jun BH. Advances in dynamic microphysiological organ-on-a-chip: Design principle and its biomedical application. J IND ENG CHEM 2019. [DOI: 10.1016/j.jiec.2018.11.041] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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183
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Mehl BT, Martin RS. Integrating 3D Cell Culture of PC12 Cells with Microchip-Based Electrochemical Detection. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2019; 11:1064-1072. [PMID: 31244918 PMCID: PMC6594695 DOI: 10.1039/c8ay02672f] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Developing in vitro cell culture models that accurately mimic in vivo processes in a manner that also enables near real-time analysis of neurotransmitters is an important research area. New technologies being developed such as 3D scaffolds for cell culture and 3D printed microfluidics provide an opportunity for such advancements. In this work, PC12 cells were used as a model system and they were immobilized onto a 3D scaffold of polystyrene (PS) fibers. These fibers were created by electrospinning onto PS sheets, which were laser cut and, after cell seeding, inserted into a 3D printed microfluidic device. The 3D printed device was designed with threads for connecting commercial fittings (to integrate automated pumps and a 4-port injection system) and a steel pin for simple coupling with PDMS/polystyrene analytical devices. A straight PDMS channel was used for simple (and continuous) flow-based detection by sealing onto a PS base containing an embedded gold array working electrode and a platinum pseudo-reference. Electrochemical detection of stimulated catecholamine release was demonstrated. The insert-based system was then integrated with a bilayer valving PDMS device (for microchip electrophoresis) sealed onto a PS base (with electrodes for electrochemical detection). This base was embedded with a Pd decoupler (for grounding the separation voltage and adsorbing hydrogen) and a 33 µm carbon fiber working electrode for in-channel detection. PC12 cells were stimulated in the 3D cell culture device, and the valving/electrophoresis microchip was able to separate and detect dopamine and norepinephrine release. This work demonstrates the ability to integrate 3D cell scaffolds with microchip-based analysis for detection of multiple analytes released from cells.
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184
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Qasim M, Haq F, Kang MH, Kim JH. 3D printing approaches for cardiac tissue engineering and role of immune modulation in tissue regeneration. Int J Nanomedicine 2019; 14:1311-1333. [PMID: 30863063 PMCID: PMC6388753 DOI: 10.2147/ijn.s189587] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Conventional tissue engineering, cell therapy, and current medical approaches were shown to be successful in reducing mortality rate and complications caused by cardiovascular diseases (CVDs). But still they have many limitations to fully manage CVDs due to complex composition of native myocardium and microvascularization. Fabrication of fully functional construct to replace infarcted area or regeneration of progenitor cells is important to address CVDs burden. Three-dimensional (3D) printed scaffolds and 3D bioprinting technique have potential to develop fully functional heart construct that can integrate with native tissues rapidly. In this review, we presented an overview of 3D printed approaches for cardiac tissue engineering, and advances in 3D bioprinting of cardiac construct and models. We also discussed role of immune modulation to promote tissue regeneration.
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Affiliation(s)
- Muhammad Qasim
- Department of Stem Cell and Regenerative Biotechnology, Humanized Pig Research Centre (SRC), Konkuk University, Seoul, South Korea,
| | - Farhan Haq
- Department of Biosciences, Comsats University, Islamabad, Pakistan
| | - Min-Hee Kang
- Department of Stem Cell and Regenerative Biotechnology, Humanized Pig Research Centre (SRC), Konkuk University, Seoul, South Korea,
| | - Jin-Hoi Kim
- Department of Stem Cell and Regenerative Biotechnology, Humanized Pig Research Centre (SRC), Konkuk University, Seoul, South Korea,
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185
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Kane KIW, Moreno EL, Hachi S, Walter M, Jarazo J, Oliveira MAP, Hankemeier T, Vulto P, Schwamborn JC, Thoma M, Fleming RMT. Automated microfluidic cell culture of stem cell derived dopaminergic neurons. Sci Rep 2019; 9:1796. [PMID: 30741972 PMCID: PMC6370836 DOI: 10.1038/s41598-018-34828-3] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Accepted: 10/12/2018] [Indexed: 12/22/2022] Open
Abstract
Parkinson’s disease is a slowly progressive neurodegenerative disease characterised by dysfunction and death of selectively vulnerable midbrain dopaminergic neurons and the development of human in vitro cellular models of the disease is a major challenge in Parkinson’s disease research. We constructed an automated cell culture platform optimised for long-term maintenance and monitoring of different cells in three dimensional microfluidic cell culture devices. The system can be flexibly adapted to various experimental protocols and features time-lapse imaging microscopy for quality control and electrophysiology monitoring to assess cellular activity. Using this system, we continuously monitored the differentiation of Parkinson’s disease patient derived human neuroepithelial stem cells into midbrain specific dopaminergic neurons. Calcium imaging confirmed the electrophysiological activity of differentiated neurons and immunostaining confirmed the efficiency of the differentiation protocol. This system is the first example of an automated Organ-on-a-Chip culture and has the potential to enable a versatile array of in vitro experiments for patient-specific disease modelling.
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Affiliation(s)
- Khalid I W Kane
- Luxembourg Centre for Systems Biomedicine, University of Luxembourg, 7 avenue des Hauts-Fourneaux, L-4362, Esch-sur-Alzette, Luxembourg
| | - Edinson Lucumi Moreno
- Luxembourg Centre for Systems Biomedicine, University of Luxembourg, 7 avenue des Hauts-Fourneaux, L-4362, Esch-sur-Alzette, Luxembourg.,Division of Systems Biomedicine and Pharmacology, Leiden Academic Centre for Drug Research, Leiden University, Einsteinweg 55, 2333CC, Leiden, The Netherlands
| | - Siham Hachi
- Luxembourg Centre for Systems Biomedicine, University of Luxembourg, 7 avenue des Hauts-Fourneaux, L-4362, Esch-sur-Alzette, Luxembourg
| | - Moriz Walter
- Fraunhofer Institute for Manufacturing Engineering and Automation IPA, Stuttgart, Germany
| | - Javier Jarazo
- Luxembourg Centre for Systems Biomedicine, University of Luxembourg, 7 avenue des Hauts-Fourneaux, L-4362, Esch-sur-Alzette, Luxembourg
| | - Miguel A P Oliveira
- Luxembourg Centre for Systems Biomedicine, University of Luxembourg, 7 avenue des Hauts-Fourneaux, L-4362, Esch-sur-Alzette, Luxembourg
| | - Thomas Hankemeier
- Division of Systems Biomedicine and Pharmacology, Leiden Academic Centre for Drug Research, Leiden University, Einsteinweg 55, 2333CC, Leiden, The Netherlands
| | - Paul Vulto
- Mimetas B.V, PO Box 11002, 2301EA, Leiden, The Netherlands
| | - Jens C Schwamborn
- Luxembourg Centre for Systems Biomedicine, University of Luxembourg, 7 avenue des Hauts-Fourneaux, L-4362, Esch-sur-Alzette, Luxembourg
| | - Martin Thoma
- Fraunhofer Institute for Manufacturing Engineering and Automation IPA, Stuttgart, Germany
| | - Ronan M T Fleming
- Luxembourg Centre for Systems Biomedicine, University of Luxembourg, 7 avenue des Hauts-Fourneaux, L-4362, Esch-sur-Alzette, Luxembourg. .,Division of Systems Biomedicine and Pharmacology, Leiden Academic Centre for Drug Research, Leiden University, Einsteinweg 55, 2333CC, Leiden, The Netherlands.
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186
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Kleine-Brüggeney H, van Vliet LD, Mulas C, Gielen F, Agley CC, Silva JCR, Smith A, Chalut K, Hollfelder F. Long-Term Perfusion Culture of Monoclonal Embryonic Stem Cells in 3D Hydrogel Beads for Continuous Optical Analysis of Differentiation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1804576. [PMID: 30570812 DOI: 10.1002/smll.201804576] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 12/02/2018] [Indexed: 06/09/2023]
Abstract
Developmental cell biology requires technologies in which the fate of single cells is followed over extended time periods, to monitor and understand the processes of self-renewal, differentiation, and reprogramming. A workflow is presented, in which single cells are encapsulated into droplets (Ø: 80 µm, volume: ≈270 pL) and the droplet compartment is later converted to a hydrogel bead. After on-chip de-emulsification by electrocoalescence, these 3D scaffolds are subsequently arrayed on a chip for long-term perfusion culture to facilitate continuous cell imaging over 68 h. Here, the response of murine embryonic stem cells to different growth media, 2i and N2B27, is studied, showing that the exit from pluripotency can be monitored by fluorescence time-lapse microscopy, by immunostaining and by reverse-transcription and quantitative PCR (RT-qPCR). The defined 3D environment emulates the natural context of cell growth (e.g., in tissue) and enables the study of cell development in various matrices. The large scale of cell cultivation (in 2000 beads in parallel) may reveal infrequent events that remain undetected in lower throughput or ensemble studies. This platform will help to gain qualitative and quantitative mechanistic insight into the role of external factors on cell behavior.
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Affiliation(s)
- Hans Kleine-Brüggeney
- Department of Biochemistry, University of Cambridge, 80 Tennis Court Road, Cambridge, CB2 1GA, UK
| | - Liisa D van Vliet
- Department of Biochemistry, University of Cambridge, 80 Tennis Court Road, Cambridge, CB2 1GA, UK
| | - Carla Mulas
- Wellcome Trust/Medical Research Council Cambridge Stem Cell Institute, University of Cambridge, Tennis Court Road, Cambridge, CB2 1QR, UK
| | - Fabrice Gielen
- Department of Biochemistry, University of Cambridge, 80 Tennis Court Road, Cambridge, CB2 1GA, UK
| | - Chibeza C Agley
- Wellcome Trust/Medical Research Council Cambridge Stem Cell Institute, University of Cambridge, Tennis Court Road, Cambridge, CB2 1QR, UK
| | - José C R Silva
- Wellcome Trust/Medical Research Council Cambridge Stem Cell Institute, University of Cambridge, Tennis Court Road, Cambridge, CB2 1QR, UK
| | - Austin Smith
- Department of Biochemistry, University of Cambridge, 80 Tennis Court Road, Cambridge, CB2 1GA, UK
- Wellcome Trust/Medical Research Council Cambridge Stem Cell Institute, University of Cambridge, Tennis Court Road, Cambridge, CB2 1QR, UK
| | - Kevin Chalut
- Wellcome Trust/Medical Research Council Cambridge Stem Cell Institute, University of Cambridge, Tennis Court Road, Cambridge, CB2 1QR, UK
- Department of Physics, University of Cambridge, 19 J J Thomson Avenue, Cambridge, CB3 0HE, UK
| | - Florian Hollfelder
- Department of Biochemistry, University of Cambridge, 80 Tennis Court Road, Cambridge, CB2 1GA, UK
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187
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Cochrane A, Albers HJ, Passier R, Mummery CL, van den Berg A, Orlova VV, van der Meer AD. Advanced in vitro models of vascular biology: Human induced pluripotent stem cells and organ-on-chip technology. Adv Drug Deliv Rev 2019; 140:68-77. [PMID: 29944904 DOI: 10.1016/j.addr.2018.06.007] [Citation(s) in RCA: 97] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 06/11/2018] [Accepted: 06/12/2018] [Indexed: 02/06/2023]
Abstract
The vascular system is one of the first to develop during embryogenesis and is essential for all organs and tissues in our body to develop and function. It has many essential roles including controlling the absorption, distribution and excretion of compounds and therefore determines the pharmacokinetics of drugs and therapeutics. Vascular homeostasis is under tight physiological control which is essential for maintaining tissues in a healthy state. Consequently, disruption of vascular homeostasis plays an integral role in many disease processes, making cells of the vessel wall attractive targets for therapeutic intervention. Experimental models of blood vessels can therefore contribute significantly to drug development and aid in predicting the biological effects of new drug entities. The increasing availability of human induced pluripotent stem cells (hiPSC) derived from healthy individuals and patients have accelerated advances in developing experimental in vitro models of the vasculature: human endothelial cells (ECs), pericytes and vascular smooth muscle cells (VSMCs), can now be generated with high efficiency from hiPSC and used in 'microfluidic chips' (also known as 'organ-on-chip' technology) as a basis for in vitro models of blood vessels. These near physiological scaffolds allow the controlled integration of fluid flow and three-dimensional (3D) co-cultures with perivascular cells to mimic tissue- or organ-level physiology and dysfunction in vitro. Here, we review recent multidisciplinary developments in these advanced experimental models of blood vessels that combine hiPSC with microfluidic organ-on-chip technology. We provide examples of their utility in various research areas and discuss steps necessary for further integration in biomedical applications so that they can be contribute effectively to the evaluation and development of new drugs and other therapeutics as well as personalized (patient-specific) treatments.
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188
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Maechler FA, Allier C, Roux A, Tomba C. Curvature-dependent constraints drive remodeling of epithelia. J Cell Sci 2019; 132:jcs222372. [PMID: 30578312 PMCID: PMC6398478 DOI: 10.1242/jcs.222372] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Accepted: 12/17/2018] [Indexed: 12/16/2022] Open
Abstract
Epithelial tissues function as barriers that separate the organism from the environment. They usually have highly curved shapes, such as tubules or cysts. However, the processes by which the geometry of the environment and the cell's mechanical properties set the epithelium shape are not yet known. In this study, we encapsulated two epithelial cell lines, MDCK and J3B1A, into hollow alginate tubes and grew them under cylindrical confinement forming a complete monolayer. MDCK monolayers detached from the alginate shell at a constant rate, whereas J3B1A monolayers detached at a low rate unless the tube radius was reduced. We showed that this detachment is driven by contractile stresses in the epithelium and can be enhanced by local curvature. This allows us to conclude that J3B1A cells exhibit smaller contractility than MDCK cells. Monolayers inside curved tubes detach at a higher rate on the outside of a curve, confirming that detachment is driven by contraction.
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Affiliation(s)
- Florian A Maechler
- Department of Biochemistry, University of Geneva, CH-1211 Geneva, Switzerland
| | - Cédric Allier
- CEA, LETI, DTBS, LISA, Université Grenoble Alpes, F-38000 Grenoble, France
| | - Aurélien Roux
- Department of Biochemistry, University of Geneva, CH-1211 Geneva, Switzerland
- NCCR Chemical Biology, University of Geneva, CH-1211 Geneva, Switzerland
| | - Caterina Tomba
- Department of Biochemistry, University of Geneva, CH-1211 Geneva, Switzerland
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189
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Corliss BA, Mathews C, Doty R, Rohde G, Peirce SM. Methods to label, image, and analyze the complex structural architectures of microvascular networks. Microcirculation 2019; 26:e12520. [PMID: 30548558 PMCID: PMC6561846 DOI: 10.1111/micc.12520] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 10/31/2018] [Accepted: 11/26/2018] [Indexed: 12/30/2022]
Abstract
Microvascular networks play key roles in oxygen transport and nutrient delivery to meet the varied and dynamic metabolic needs of different tissues throughout the body, and their spatial architectures of interconnected blood vessel segments are highly complex. Moreover, functional adaptations of the microcirculation enabled by structural adaptations in microvascular network architecture are required for development, wound healing, and often invoked in disease conditions, including the top eight causes of death in the Unites States. Effective characterization of microvascular network architectures is not only limited by the available techniques to visualize microvessels but also reliant on the available quantitative metrics that accurately delineate between spatial patterns in altered networks. In this review, we survey models used for studying the microvasculature, methods to label and image microvessels, and the metrics and software packages used to quantify microvascular networks. These programs have provided researchers with invaluable tools, yet we estimate that they have collectively attained low adoption rates, possibly due to limitations with basic validation, segmentation performance, and nonstandard sets of quantification metrics. To address these existing constraints, we discuss opportunities to improve effectiveness, rigor, and reproducibility of microvascular network quantification to better serve the current and future needs of microvascular research.
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Affiliation(s)
- Bruce A Corliss
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia
| | - Corbin Mathews
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia
| | - Richard Doty
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia
| | - Gustavo Rohde
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia
| | - Shayn M Peirce
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia
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190
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Loessberg-Zahl J, van der Meer AD, van den Berg A, Eijkel JCT. Flow focusing through gels as a tool to generate 3D concentration profiles in hydrogel-filled microfluidic chips. LAB ON A CHIP 2019; 19:206-213. [PMID: 30548051 DOI: 10.1039/c8lc01140k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Laminar flow patterning is an iconic microfluidic technology used to deliver chemicals to specific regions on a two-dimensional surface with high spatial fidelity. Here we present a novel extension of this technology using Darcy flow within a three-dimensional (3D) hydrogel. Our test device is a simple 3-inlet microfluidic channel, totally filled with collagen, a cured biological hydrogel, where the concentration profiles of solutes are manipulated via the inlet pressures. This method allows solutes to be delivered with 50 micron accuracy within the gel, as we evidence by controlling concentration profiles of 40 kDa and 1 kDa fluorescent polysaccharide dyes. Furthermore, we design and test a 3D-printed version of our device with an extra two inlets for control of the vertical position of the concentration profile, demonstrating that this method is easily extensible to control of the concentration profile in 3D.
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191
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Chen Y, Sun W, Kang L, Wang Y, Zhang M, Zhang H, Hu P. Microfluidic co-culture of liver tumor spheroids with stellate cells for the investigation of drug resistance and intercellular interactions. Analyst 2019; 144:4233-4240. [DOI: 10.1039/c9an00612e] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Hepatic stellate cells (HSCs), a major component of the tumor microenvironment in liver cancer, play important roles in cancer progression as well as drug resistance.
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Affiliation(s)
- Yuqing Chen
- Shanghai Key Laboratory of Functional Materials Chemistry
- School of Chemistry & Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Wei Sun
- Shanghai Key Laboratory of Functional Materials Chemistry
- School of Chemistry & Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Lu Kang
- Shanghai Key Laboratory of Functional Materials Chemistry
- School of Chemistry & Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Yuerong Wang
- Shanghai Key Laboratory of Functional Materials Chemistry
- School of Chemistry & Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Min Zhang
- Shanghai Key Laboratory of New Drug Design & Modern Engineering Center for TCM
- School of Pharmacy
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Hongyang Zhang
- Shanghai Key Laboratory of Functional Materials Chemistry
- School of Chemistry & Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Ping Hu
- Shanghai Key Laboratory of Functional Materials Chemistry
- School of Chemistry & Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
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192
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Zhang W, Guled F, Hankemeier T, Ramautar R. Utility of sheathless capillary electrophoresis-mass spectrometry for metabolic profiling of limited sample amounts. J Chromatogr B Analyt Technol Biomed Life Sci 2019; 1105:10-14. [DOI: 10.1016/j.jchromb.2018.12.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 11/17/2018] [Accepted: 12/04/2018] [Indexed: 12/01/2022]
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193
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Hu C, Chen Y, Tan MJA, Ren K, Wu H. Microfluidic technologies for vasculature biomimicry. Analyst 2019; 144:4461-4471. [DOI: 10.1039/c9an00421a] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
An overview of microfluidic technologies for vascular studies and fabrication of vascular structures.
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Affiliation(s)
- Chong Hu
- Department of Chemistry
- Hong Kong Baptist University
- Kowloon
- China
| | - Yangfan Chen
- Department of Chemistry
- The Hong Kong University of Science and Technology
- Kowloon
- China
| | - Ming Jun Andrew Tan
- Division of Biomedical Engineering
- The Hong Kong University of Science and Technology
- China
| | - Kangning Ren
- Department of Chemistry
- Hong Kong Baptist University
- Kowloon
- China
- HKBU Institute of Research and Continuing Education
| | - Hongkai Wu
- Department of Chemistry
- The Hong Kong University of Science and Technology
- Kowloon
- China
- Division of Biomedical Engineering
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194
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Roberts S, Peyman S, Speirs V. Current and Emerging 3D Models to Study Breast Cancer. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1152:413-427. [PMID: 31456197 DOI: 10.1007/978-3-030-20301-6_22] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
For decades 2D culture has been used to study breast cancer. In recent years, however, the importance of 3D culture to recapitulate the complexity of human disease has received attention. A breakthrough for 3D culture came as a result of a Nature editorial 'Goodbye Flat Biology' (Anonymous, Nature 424:861-861, 2003). Since then scientists have developed and implemented a range of different and more clinically relevant models, which are used to study breast cancer. In this chapter multiple different 3D models will be discussed including spheroids, microfluidic and bio-printed models and in silico models.
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Affiliation(s)
- Sophie Roberts
- Leeds Institute of Cancer and Pathology, University of Leeds, Leeds, UK
| | - Sally Peyman
- School of Physics and Astronomy, University of Leeds, Leeds, UK
| | - Valerie Speirs
- Leeds Institute of Cancer and Pathology, University of Leeds, Leeds, UK.
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195
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Su X, Tan M, Duan B, Cai J, Jiang W, Zhang L. Hierarchical microspheres with macropores fabricated from chitin as 3D cell culture. J Mater Chem B 2019; 7:5190-5198. [DOI: 10.1039/c9tb01046g] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Hierarchical chitin nanofiber microspheres with open macropores was prepared to be used as scaffold for 3D cell culture.
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Affiliation(s)
- Xiaojuan Su
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- China
- Hubei Engineering Center of Natural Polymers-based Medical Materials
| | - Mengtian Tan
- Department of Biological Repositories
- Zhongnan Hospital of Wuhan University
- Medical Research Institute
- School of Medicine
- Wuhan University
| | - Bo Duan
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- China
| | - Jie Cai
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- China
- Hubei Engineering Center of Natural Polymers-based Medical Materials
| | - Wei Jiang
- Department of Biological Repositories
- Zhongnan Hospital of Wuhan University
- Medical Research Institute
- School of Medicine
- Wuhan University
| | - Lina Zhang
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- China
- Hubei Engineering Center of Natural Polymers-based Medical Materials
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196
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da Conceicao Ribeiro R, Pal D, Ferreira AM, Gentile P, Benning M, Dalgarno K. Reactive jet impingement bioprinting of high cell density gels for bone microtissue fabrication. Biofabrication 2018; 11:015014. [DOI: 10.1088/1758-5090/aaf625] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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197
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Ma H, Seebacher NA, Hornicek FJ, Duan Z. Cyclin-dependent kinase 9 (CDK9) is a novel prognostic marker and therapeutic target in osteosarcoma. EBioMedicine 2018; 39:182-193. [PMID: 30579871 PMCID: PMC6355967 DOI: 10.1016/j.ebiom.2018.12.022] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 12/07/2018] [Accepted: 12/12/2018] [Indexed: 12/13/2022] Open
Abstract
Background Cyclin-dependent protein kinase 9 (CDK9) has been shown to play an important role in the pathogenesis of malignant tumors. However, the expression and function of CDK9 remain unknown in osteosarcomas. The purpose of this study is to assess the expression, function and clinical prognostic relationship of CDK9 in osteosarcomas. Methods A tissue microarray of 70 patient specimens was analyzed by immunohistochemistry to measure CDK9 expression, which was further investigated for correlation with patient clinical characteristics. CDK9 expression in osteosarcoma cell lines and patient tissues was also evaluated by Western blotting. CDK9-specific siRNA and the CDK9 inhibitor were applied to determine the effect of CDK9 inhibition on osteosarcoma cell proliferation and anti-apoptotic activity. The clonogenicity and migration activity were also examined using clonogenic and wound healing assays. A 3D cell culture model was performed to mimic the in vivo osteosarcoma environment to further validate the effect of CDK9 inhibition on osteosarcoma cells. Findings We demonstrated that higher CDK9-expression is associated with significantly shortened patient survival by immunohistochemistry. Expression of CDK9 is inversely correlated to the percent of tumor necrosis post-neoadjuvant chemotherapy, which is the most important predictive factor of disease outcome for osteosarcoma patients. Knockdown of CDK9 with siRNA and inhibition of CDK9 activity with inhibitor decreased cell proliferation and induced apoptosis in osteosarcoma. Interpretation High expression of CDK9 is an independent predictor of poor prognosis in osteosarcoma patients. Our results suggest that CDK9 is a novel prognostic marker and a promising therapeutic target for osteosarcomas.
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Affiliation(s)
- Hangzhan Ma
- Department of Orthopaedics, Panyu Hospital of Chinese Medicine, Guangzhou, Guangdong 511400, China; Sarcoma Biology Laboratory, Department of Orthopaedic Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA
| | - Nicole A Seebacher
- Sarcoma Biology Laboratory, Department of Orthopaedic Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA
| | - Francis J Hornicek
- Sarcoma Biology Laboratory, Department of Orthopaedic Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA
| | - Zhenfeng Duan
- Sarcoma Biology Laboratory, Department of Orthopaedic Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA.
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198
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Duru LN, Quan Z, Qazi TJ, Qing H. Stem cells technology: a powerful tool behind new brain treatments. Drug Deliv Transl Res 2018; 8:1564-1591. [PMID: 29916013 DOI: 10.1007/s13346-018-0548-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Stem cell research has recently become a hot research topic in biomedical research due to the foreseen unlimited potential of stem cells in tissue engineering and regenerative medicine. For many years, medicine has been facing intense challenges, such as an insufficient number of organ donations that is preventing clinicians to fulfill the increasing needs. To try and overcome this regrettable matter, research has been aiming at developing strategies to facilitate the in vitro culture and study of stem cells as a tool for tissue regeneration. Meanwhile, new developments in the microfluidics technology brought forward emerging cell culture applications that are currently allowing for a better chemical and physical control of cellular microenvironment. This review presents the latest developments in stem cell research that brought new therapies to the clinics and how the convergence of the microfluidics technology with stem cell research can have positive outcomes on the fields of regenerative medicine and high-throughput screening. These advances will bring new translational solutions for drug discovery and will upgrade in vitro cell culture to a new level of accuracy and performance. We hope this review will provide new insights into the understanding of new brain treatments from the perspective of stem cell technology especially regarding regenerative medicine and tissue engineering.
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Affiliation(s)
- Lucienne N Duru
- School of Life Science, Beijing Institute of Technology, Beijing, China
| | - Zhenzhen Quan
- School of Life Science, Beijing Institute of Technology, Beijing, China
| | - Talal Jamil Qazi
- School of Life Science, Beijing Institute of Technology, Beijing, China
| | - Hong Qing
- School of Life Science, Beijing Institute of Technology, Beijing, China. .,Beijing Key Laboratory of Separation and Analysis in Biomedical and Pharmaceuticals, Department of Biomedical Engineering, School of Life Science, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing, 100081, China.
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199
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He Z, Ranganathan N, Li P. Evaluating nanomedicine with microfluidics. NANOTECHNOLOGY 2018; 29:492001. [PMID: 30215611 DOI: 10.1088/1361-6528/aae18a] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Nanomedicines are engineered nanoscale structures that have an extensive range of application in the diagnosis and therapy of many diseases. Despite the rapid progress in and tremendous potential of nanomedicines, their clinical translational process is still slow, owing to the difficulty in understanding, evaluating, and predicting their behavior in complex living organisms. Microfluidic techniques offer a promising way to resolve these challenges. Carefully designed microfluidic chips enable in vivo microenvironment simulation and high-throughput analysis, thus providing robust platforms for nanomedicine evaluation. Here, we summarize the recent developments and achievements in microfluidic methods for nanomedicine evaluation, categorized into four sections based on their target systems: single cell, multicellular system, organ, and organism levels. Finally, we provide our perspectives on the challenges and future directions of microfluidics-based nanomedicine evaluation.
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Affiliation(s)
- Ziyi He
- C. Eugene Bennett Department of Chemistry, West Virginia University, Morgantown, WV, United States of America
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200
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Alam MK, Koomson E, Zou H, Yi C, Li CW, Xu T, Yang M. Recent advances in microfluidic technology for manipulation and analysis of biological cells (2007–2017). Anal Chim Acta 2018; 1044:29-65. [DOI: 10.1016/j.aca.2018.06.054] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Revised: 06/19/2018] [Accepted: 06/19/2018] [Indexed: 12/17/2022]
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