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Nakao M, Matsui M, Kim K, Nishiyama N, Grainger DW, Okano T, Kanazawa H, Nagase K. Umbilical cord-derived mesenchymal stem cell sheets transplanted subcutaneously enhance cell retention and survival more than dissociated stem cell injections. Stem Cell Res Ther 2023; 14:352. [PMID: 38072920 PMCID: PMC10712142 DOI: 10.1186/s13287-023-03593-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 11/29/2023] [Indexed: 12/18/2023] Open
Abstract
BACKGROUND Human umbilical cord-derived mesenchymal stem cell (hUC-MSC) sheets have recently attracted attention as an alternative approach to injected cell suspensions for stem cell therapy. However, cell engraftment and cytokine expression levels between hUC-MSC sheets and their cell suspensions in vivo have not yet been compared. This study compares hUC-MSC in vivo engraftment efficacy and cytokine expression for both hUC-MSC sheets and cell suspensions. METHODS hUC-MSC sheets were prepared using temperature-responsive cell culture; two types of hUC-MSC suspensions were prepared, either by enzymatic treatment (trypsin) or by enzyme-free temperature reduction using temperature-responsive cell cultureware. hUC-MSC sheets and suspensions were transplanted subcutaneously into ICR mice through subcutaneous surgical placement and intravenous injection, respectively. hUC-MSC sheet engraftment after subcutaneous surgical transplantation was investigated by in vivo imaging while intravenously injected cell suspensions were analyzing using in vitro organ imaging. Cytokine levels in both transplant site tissues and blood were quantified by enzyme-linked immunosorbent assay. RESULTS After subcutaneous transplant, hUC-MSC sheets exhibited longer engraftment duration than hUC-MSC suspensions. This was attributed to extracellular matrix (ECM) and cell-cell junctions retained in sheets but enzymatically altered in suspensions. hUC-MSC suspensions harvested using enzyme-free temperature reduction exhibited relatively long engraftment duration after intravenous injection compared to suspensions prepared using trypsin, as enzyme-free harvest preserved cellular ECM. High HGF and TGF-β1 levels were observed in sheet-transplanted sites compared to hUC-MSC suspension sites. However, no differences in human cytokine levels in murine blood were detected, indicating that hUC-MSC sheets might exert local paracrine rather than endocrine effects. CONCLUSIONS hUC-MSC sheet transplantation could be a more effective cell therapeutic approach due to enhanced engraftment and secretion of therapeutic cytokines over injected hUC-MSC suspensions.
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Affiliation(s)
- Mitsuyoshi Nakao
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato-ku, Tokyo, 105-8512, Japan
| | - Makoto Matsui
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa, 226-8503, Japan
| | - Kyungsook Kim
- Cell Sheet Tissue Engineering Center (CSTEC), Department of Molecular Pharmaceutics, University of Utah, Health Sciences, Salt Lake City, UT, 84112, USA
| | - Nobuhiro Nishiyama
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa, 226-8503, Japan
| | - David W Grainger
- Cell Sheet Tissue Engineering Center (CSTEC), Department of Molecular Pharmaceutics, University of Utah, Health Sciences, Salt Lake City, UT, 84112, USA
- Department of Biomedical Engineering, University of Utah, Salt Lake City, UT, 84112, USA
| | - Teruo Okano
- Cell Sheet Tissue Engineering Center (CSTEC), Department of Molecular Pharmaceutics, University of Utah, Health Sciences, Salt Lake City, UT, 84112, USA
| | - Hideko Kanazawa
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato-ku, Tokyo, 105-8512, Japan
| | - Kenichi Nagase
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato-ku, Tokyo, 105-8512, Japan.
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2
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Costa CM, Cardoso VF, Martins P, Correia DM, Gonçalves R, Costa P, Correia V, Ribeiro C, Fernandes MM, Martins PM, Lanceros-Méndez S. Smart and Multifunctional Materials Based on Electroactive Poly(vinylidene fluoride): Recent Advances and Opportunities in Sensors, Actuators, Energy, Environmental, and Biomedical Applications. Chem Rev 2023; 123:11392-11487. [PMID: 37729110 PMCID: PMC10571047 DOI: 10.1021/acs.chemrev.3c00196] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Indexed: 09/22/2023]
Abstract
From scientific and technological points of view, poly(vinylidene fluoride), PVDF, is one of the most exciting polymers due to its overall physicochemical characteristics. This polymer can crystalize into five crystalline phases and can be processed in the form of films, fibers, membranes, and specific microstructures, being the physical properties controllable over a wide range through appropriate chemical modifications. Moreover, PVDF-based materials are characterized by excellent chemical, mechanical, thermal, and radiation resistance, and for their outstanding electroactive properties, including high dielectric, piezoelectric, pyroelectric, and ferroelectric response, being the best among polymer systems and thus noteworthy for an increasing number of technologies. This review summarizes and critically discusses the latest advances in PVDF and its copolymers, composites, and blends, including their main characteristics and processability, together with their tailorability and implementation in areas including sensors, actuators, energy harvesting and storage devices, environmental membranes, microfluidic, tissue engineering, and antimicrobial applications. The main conclusions, challenges and future trends concerning materials and application areas are also presented.
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Affiliation(s)
- Carlos M. Costa
- Physics
Centre of Minho and Porto Universities (CF-UM-UP), University of Minho, 4710-057 Braga, Portugal
- Laboratory
of Physics for Materials and Emergent Technologies, LapMET, University of Minho, 4710-057 Braga, Portugal
- Institute
of Science and Innovation for Bio-Sustainability (IB-S), University of Minho, 4710-057 Braga, Portugal
| | - Vanessa F. Cardoso
- CMEMS-UMinho, University of
Minho, DEI, Campus de
Azurém, 4800-058 Guimarães, Portugal
- LABBELS-Associate
Laboratory, Campus de
Gualtar, 4800-058 Braga, Guimarães, Portugal
| | - Pedro Martins
- Physics
Centre of Minho and Porto Universities (CF-UM-UP), University of Minho, 4710-057 Braga, Portugal
- Laboratory
of Physics for Materials and Emergent Technologies, LapMET, University of Minho, 4710-057 Braga, Portugal
- Institute
of Science and Innovation for Bio-Sustainability (IB-S), University of Minho, 4710-057 Braga, Portugal
| | | | - Renato Gonçalves
- Center of
Chemistry, University of Minho, 4710-057 Braga, Portugal
| | - Pedro Costa
- Physics
Centre of Minho and Porto Universities (CF-UM-UP), University of Minho, 4710-057 Braga, Portugal
- Laboratory
of Physics for Materials and Emergent Technologies, LapMET, University of Minho, 4710-057 Braga, Portugal
- Institute
for Polymers and Composites IPC, University
of Minho, 4804-533 Guimarães, Portugal
| | - Vitor Correia
- CMEMS-UMinho, University of
Minho, DEI, Campus de
Azurém, 4800-058 Guimarães, Portugal
- LABBELS-Associate
Laboratory, Campus de
Gualtar, 4800-058 Braga, Guimarães, Portugal
| | - Clarisse Ribeiro
- Physics
Centre of Minho and Porto Universities (CF-UM-UP), University of Minho, 4710-057 Braga, Portugal
- Laboratory
of Physics for Materials and Emergent Technologies, LapMET, University of Minho, 4710-057 Braga, Portugal
| | - Margarida M. Fernandes
- CMEMS-UMinho, University of
Minho, DEI, Campus de
Azurém, 4800-058 Guimarães, Portugal
- LABBELS-Associate
Laboratory, Campus de
Gualtar, 4800-058 Braga, Guimarães, Portugal
| | - Pedro M. Martins
- Institute
of Science and Innovation for Bio-Sustainability (IB-S), University of Minho, 4710-057 Braga, Portugal
- Centre
of Molecular and Environmental Biology, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Senentxu Lanceros-Méndez
- Physics
Centre of Minho and Porto Universities (CF-UM-UP), University of Minho, 4710-057 Braga, Portugal
- Laboratory
of Physics for Materials and Emergent Technologies, LapMET, University of Minho, 4710-057 Braga, Portugal
- BCMaterials,
Basque Center for Materials, Applications
and Nanostructures, UPV/EHU
Science Park, 48940 Leioa, Spain
- Ikerbasque, Basque Foundation for Science, 48009 Bilbao, Spain
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3
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Temperature-responsive and multi-responsive grafted polymer brushes with transitions based on critical solution temperature: synthesis, properties, and applications. Colloid Polym Sci 2020. [DOI: 10.1007/s00396-020-04750-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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4
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Kim H, Witt H, Oswald TA, Tarantola M. Adhesion of Epithelial Cells to PNIPAm Treated Surfaces for Temperature-Controlled Cell-Sheet Harvesting. ACS APPLIED MATERIALS & INTERFACES 2020; 12:33516-33529. [PMID: 32631046 PMCID: PMC7467562 DOI: 10.1021/acsami.0c09166] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Stimuli responsive polymer coatings are a common motive for designing surfaces for cell biological applications. In the present study, we have characterized temperature dependent adhesive properties of poly(N-isopropylacrylamide) (PNIPAm) microgel coated surfaces (PMS) using various atomic force microscopy based approaches. We imaged and quantified the material properties of PMS upon a temperature switch using quantitative AFM imaging but also employed single-cell force spectroscopy (SCFS) before and after decreasing the temperature to assess the forces and work of initial adhesion between cells and PMS. We performed a detailed analysis of steps in the force-distance curves. Finally, we applied colloid probe atomic force microscopy (CP-AFM) to analyze the adhesive properties of two major components of the extracellular matrix to PMS under temperature control, namely collagen I and fibronectin. In combination with confocal imaging, we could show that these two ECM components differ in their detachment properties from PNIPAm microgel films upon cell harvesting, and thus gained a deeper understanding of cell-sheet maturation and harvesting process and the involved partial ECM dissolution.
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Affiliation(s)
- Hyejeong Kim
- Max Planck Institute
for Dynamics and Self Organization (MPIDS), Am Fassberg 17, 37077 Göttingen, Germany
| | - Hannes Witt
- Max Planck Institute
for Dynamics and Self Organization (MPIDS), Am Fassberg 17, 37077 Göttingen, Germany
| | - Tabea A. Oswald
- Institute of Organic and Biomolecular Chemistry, University of Göttingen, Tammannstrasse 2, 37077 Göttingen, Germany
| | - Marco Tarantola
- Max Planck Institute
for Dynamics and Self Organization (MPIDS), Am Fassberg 17, 37077 Göttingen, Germany
- Institute for Dynamics of Complex Systems, University of Göttingen, Friedrich-Hund Platz 1, 37073 Göttingen, Germany
- E-mail: . Phone: +49-551-5176-316
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5
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Kim K, Bou-Ghannam S, Okano T. Cell sheet tissue engineering for scaffold-free three-dimensional (3D) tissue reconstruction. Methods Cell Biol 2020; 157:143-167. [PMID: 32334713 DOI: 10.1016/bs.mcb.2019.11.020] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Three-dimensional (3D) reconstruction of highly functional tissues is of great importance in advancing the clinical benefit of tissue engineering and regenerative medicine. In the last quarter century, many studies have found that by engineering a 3D microenvironment that resembles the in vivo tissue condition, cells exhibit behaviors and functions that reflect those of native tissue. Biomaterial scaffolds are a central technology for providing 3D microenvironments in vitro, and, in conjunction with diverse design and cell seeding advents, have produced highly functional and complex 3D tissues. Here, we describe a new approach to creating 3D cell-dense tissue-like constructs without a biomaterial scaffold. Cell sheet technology with cell sheet layering strategies generates highly cell dense, engineered tissue capable of direct crosstalk with the tissue-engraftment surface, in addition to paracrine-mediated signaling. In this chapter, we will introduce methods of reconstructing 3D tissue using cell sheet technology and the advantages of a scaffold-free design.
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Affiliation(s)
- Kyungsook Kim
- Cell Sheet Tissue Engineering Center (CSTEC), Department of Pharmaceutics and Pharmaceutical Chemistry, Health Sciences, University of Utah, Salt Lake City, UT, United States.
| | - Sophia Bou-Ghannam
- Cell Sheet Tissue Engineering Center (CSTEC), Department of Pharmaceutics and Pharmaceutical Chemistry, Health Sciences, University of Utah, Salt Lake City, UT, United States; Department of Biomedical Engineering, University of Utah, Salt Lake City, UT, United States
| | - Teruo Okano
- Cell Sheet Tissue Engineering Center (CSTEC), Department of Pharmaceutics and Pharmaceutical Chemistry, Health Sciences, University of Utah, Salt Lake City, UT, United States; Institute of Advanced Biomedical Engineering and Science, Tokyo Women's Medical University, Tokyo, Japan.
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6
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Nakao M, Inanaga D, Nagase K, Kanazawa H. Characteristic differences of cell sheets composed of mesenchymal stem cells with different tissue origins. Regen Ther 2019; 11:34-40. [PMID: 31193157 PMCID: PMC6517796 DOI: 10.1016/j.reth.2019.01.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 12/28/2018] [Accepted: 01/06/2019] [Indexed: 12/13/2022] Open
Abstract
INTRODUCTION Stem cell therapy with mesenchymal stem cells (MSCs) has been widely used in many clinical trials, and therapy with MSC sheets shows promise for patients. However, there are few reports characterizing MSC sheets. In the present study, the properties of MSC sheets derived from bone marrow, adipose tissue, and umbilical cord were evaluated. METHODS Cell sheets were fabricated with MSCs from different tissue origins in temperature-responsive cell culture dishes with and without pre-coating of fetal bovine serum (FBS). MSC adhesion behavior in the culture dish was observed. Secretion of cytokines related to cell proliferation and immune regulation from MSC sheets was investigated by ELISA. The adhesion properties of the MSC sheets were investigated by time-lapse microscopy. RESULTS Different cell adhesion and proliferation rates in temperature-responsive cell culture dishes were observed among the three types of MSCs. FBS pre-coating of the dishes enhanced cell attachment and proliferation in all cell types. Harvested cell sheets showed high attachment capacity to tissue culture polystyrene dish surfaces. CONCLUSIONS MSC sheets can be fabricated from MSCs from different tissue origins using temperature-responsive cell culture dishes. The fabricated MSC sheets could be useful in cell transplantation therapies by choosing appropriate types of MSCs that secrete therapeutic cytokines for the targeted diseases.
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Affiliation(s)
| | | | - Kenichi Nagase
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo, 105-8512, Japan
| | - Hideko Kanazawa
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo, 105-8512, Japan
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7
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Koo MA, Lee MH, Park JC. Recent Advances in ROS-Responsive Cell Sheet Techniques for Tissue Engineering. Int J Mol Sci 2019; 20:ijms20225656. [PMID: 31726692 PMCID: PMC6888384 DOI: 10.3390/ijms20225656] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 11/06/2019] [Accepted: 11/08/2019] [Indexed: 12/12/2022] Open
Abstract
Cell sheet engineering has evolved rapidly in recent years as a new approach for cell-based therapy. Cell sheet harvest technology is important for producing viable, transplantable cell sheets and applying them to tissue engineering. To date, most cell sheet studies use thermo-responsive systems to detach cell sheets. However, other approaches have been reported. This review provides the progress in cell sheet detachment techniques, particularly reactive oxygen species (ROS)-responsive strategies. Therefore, we present a comprehensive introduction to ROS, their application in regenerative medicine, and considerations on how to use ROS in cell detachment. The review also discusses current limitations and challenges for clarifying the mechanism of the ROS-responsive cell sheet detachment.
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Affiliation(s)
- Min-Ah Koo
- Department of Medical Engineering, Yonsei University College of Medicine, Seoul 03722, Korea
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Mi Hee Lee
- Department of Medical Engineering, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Jong-Chul Park
- Department of Medical Engineering, Yonsei University College of Medicine, Seoul 03722, Korea
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul 03722, Korea
- Correspondence: ; Tel.: +82-2-2228-1917
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8
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Engineering multi-layered tissue constructs using acoustic levitation. Sci Rep 2019; 9:9789. [PMID: 31278312 PMCID: PMC6611909 DOI: 10.1038/s41598-019-46201-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Accepted: 06/14/2019] [Indexed: 02/07/2023] Open
Abstract
Engineering tissue structures that mimic those found in vivo remains a challenge for modern biology. We demonstrate a new technique for engineering composite structures of cells comprising layers of heterogeneous cell types. An acoustofluidic bioreactor is used to assemble epithelial cells into a sheet-like structure. On transferring these cell sheets to a confluent layer of fibroblasts, the epithelial cells cover the fibroblast surface by collective migration maintaining distinct epithelial and fibroblast cell layers. The collective behaviour of the epithelium is dependent on the formation of cell-cell junctions during levitation and contrasts with the behaviour of mono-dispersed epithelial cells where cell-matrix interactions dominate and hinder formation of discrete cell layers. The multilayered tissue model is shown to form a polarised epithelial barrier and respond to apical challenge. The method is useful for engineering a wide range of layered tissue types and mechanistic studies on collective cell migration.
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9
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AKIYAMA Y, OKANO T. Temperature-Responsive Cell Culture Surface for Cell-Sheet Tissue Engineering and Its Design to Express Temperature-Dependent Cell Attachment/Detachment Character. KOBUNSHI RONBUNSHU 2018. [DOI: 10.1295/koron.2017-0078] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Yoshikatsu AKIYAMA
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women’s Medical University
| | - Teruo OKANO
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women’s Medical University
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10
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Poly(N-isopropyl acrylamide)-coated surfaces: Investigation of the mechanism of cell detachment. Biointerphases 2017; 12:02C401. [DOI: 10.1116/1.4979920] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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11
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Ravichandran A, Liu Y, Teoh SH. Review: bioreactor design towards generation of relevant engineered tissues: focus on clinical translation. J Tissue Eng Regen Med 2017; 12:e7-e22. [PMID: 28374578 DOI: 10.1002/term.2270] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Revised: 07/13/2016] [Accepted: 07/19/2016] [Indexed: 12/27/2022]
Abstract
In tissue engineering and regenerative medicine, studies that utilize 3D scaffolds for generating voluminous tissues are mostly confined in the realm of in vitro research and preclinical animal model testing. Bioreactors offer an excellent platform to grow and develop 3D tissues by providing conditions that mimic their native microenvironment. Aligning the bioreactor development process with a focus on patient care will aid in the faster translation of the bioreactor technology to clinics. In this review, we discuss the various factors involved in the design of clinically relevant bioreactors in relation to their respective applications. We explore the functional relevance of tissue grafts generated by bioreactors that have been designed to provide physiologically relevant mechanical cues on the growing tissue. The review discusses the recent trends in non-invasive sensing of the bioreactor culture conditions. It provides an insight to the current technological advancements that enable in situ, non-invasive, qualitative and quantitative evaluation of the tissue grafts grown in a bioreactor system. We summarize the emerging trends in commercial bioreactor design followed by a short discussion on the aspects that hamper the 'push' of bioreactor systems into the commercial market as well as 'pull' factors for stakeholders to embrace and adopt widespread utility of bioreactors in the clinical setting. Copyright © 2017 John Wiley & Sons, Ltd.
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Affiliation(s)
- Akhilandeshwari Ravichandran
- School of Chemical and Biomedical Engineering, 70 Nanyang Drive, Nanyang Technological University, Singapore, 637459, Singapore
| | - Yuchun Liu
- School of Chemical and Biomedical Engineering, 70 Nanyang Drive, Nanyang Technological University, Singapore, 637459, Singapore.,Academic Clinical Program (Research), National Dental Centre of Singapore, 5 Second Hospital Ave Singapore, 168938, Singapore
| | - Swee-Hin Teoh
- School of Chemical and Biomedical Engineering, 70 Nanyang Drive, Nanyang Technological University, Singapore, 637459, Singapore
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12
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Kumar P, Pandit A, Zeugolis DI. Progress in Corneal Stromal Repair: From Tissue Grafts and Biomaterials to Modular Supramolecular Tissue-Like Assemblies. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:5381-5399. [PMID: 27028373 DOI: 10.1002/adma.201503986] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2015] [Revised: 12/31/2015] [Indexed: 06/05/2023]
Abstract
Corneal injuries and degenerative conditions have major socioeconomic consequences, given that in most cases, they result in blindness. In the quest of the ideal therapy, tissue grafts, biomaterials, and modular engineering approaches are under intense investigation. Herein, advancements and shortfalls are reviewed and future perspectives for these therapeutic strategies discussed.
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Affiliation(s)
- Pramod Kumar
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), Biosciences Research Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
- Center for Research in Medical Devices (CÚRAM), Biosciences Research Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
| | - Abhay Pandit
- Center for Research in Medical Devices (CÚRAM), Biosciences Research Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
| | - Dimitrios I Zeugolis
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), Biosciences Research Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
- Center for Research in Medical Devices (CÚRAM), Biosciences Research Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
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13
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Altomare L, Cochis A, Carletta A, Rimondini L, Farè S. Thermo-responsive methylcellulose hydrogels as temporary substrate for cell sheet biofabrication. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2016; 27:95. [PMID: 26984360 DOI: 10.1007/s10856-016-5703-8] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Accepted: 03/05/2016] [Indexed: 06/05/2023]
Abstract
Methylcellulose (MC), a water-soluble polymer derived from cellulose, was investigated as a possible temporary substrate having thermo-responsive properties favorable for cell culturing. MC-based hydrogels were prepared by a dispersion technique, mixing MC powder (2, 4, 6, 8, 10, 12 % w/v) with selected salts (sodium sulphate, Na2SO4), sodium phosphate, calcium chloride, or phosphate buffered saline, to evaluate the influence of different compositions on the thermo-responsive behavior. The inversion test was used to determine the gelation temperatures of the different hydrogel compositions; thermo-mechanical properties and thermo-reversibility of the MC hydrogels were investigated by rheological analysis. Gelation temperatures and rheological behavior depended on the MC concentration and type and concentration of salt used in hydrogel preparation. In vitro cytotoxicity tests, performed using L929 mouse fibroblasts, showed no toxic release from all the tested hydrogels. Among the investigated compositions, the hydrogel composed of 8 % w/v MC with 0.05 M Na2SO4 had a thermo-reversibility temperature at 37 °C. For that reason, this formulation was thus considered to verify the possibility of inducing in vitro spontaneous detachment of cells previously seeded on the hydrogel surface. A continuous cell layer (cell sheet) was allowed to grow and then detached from the hydrogel surface without the use of enzymes, thanks to the thermo-responsive behavior of the MC hydrogel. Immunofluorescence observation confirmed that the detached cell sheet was composed of closely interacting cells.
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Affiliation(s)
- Lina Altomare
- Dipartimento di Chimica, Materiali e Ingegneria Chimica "G. Natta", Politecnico di Milano, Piazza L. Da Vinci 32, Milan, MI, Italy
- INSTM, Consorzio Nazionale di Scienza e Tecnologia dei Materiali, Local Unit Politecnico di Milano, Milan, Italy
| | - Andrea Cochis
- Dipartimento di Scienze della Salute, Università del Piemonte Orientale (UPO), Via Solaroli 17, 28100, Novara, NO, Italy
- INSTM, Consorzio Nazionale di Scienza e Tecnologia dei Materiali, Local Unit Università del Piemonte Orientale, Novara, Italy
| | - Andrea Carletta
- Dipartimento di Chimica, Materiali e Ingegneria Chimica "G. Natta", Politecnico di Milano, Piazza L. Da Vinci 32, Milan, MI, Italy
| | - Lia Rimondini
- Dipartimento di Scienze della Salute, Università del Piemonte Orientale (UPO), Via Solaroli 17, 28100, Novara, NO, Italy.
- INSTM, Consorzio Nazionale di Scienza e Tecnologia dei Materiali, Local Unit Università del Piemonte Orientale, Novara, Italy.
| | - Silvia Farè
- Dipartimento di Chimica, Materiali e Ingegneria Chimica "G. Natta", Politecnico di Milano, Piazza L. Da Vinci 32, Milan, MI, Italy
- INSTM, Consorzio Nazionale di Scienza e Tecnologia dei Materiali, Local Unit Politecnico di Milano, Milan, Italy
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14
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Osada A, Sekine H, Soejima K, Sakurai H, Shimizu T. Harvesting epithelial keratinocyte sheets from temperature-responsive dishes preserves basement membrane proteins and improves cell survival in a skin defect model. J Tissue Eng Regen Med 2016; 11:2516-2524. [PMID: 27061496 DOI: 10.1002/term.2149] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Revised: 12/21/2015] [Accepted: 12/22/2015] [Indexed: 11/10/2022]
Abstract
Cultured epithelial autograft (CEA) therapy has been used in clinical applications since the 1980s. However, there are some issues related to this treatment that still remain unsolved. Enzymatic treatment is typically used in the collection of epithelial keratinocyte sheets, but it tends to break the adhesion and basement membrane proteins. It is thought that the loss of proteins after enzymatic treatment is responsible for the poor survival of transplanted cell sheets. Our laboratory has developed a temperature-responsive culture dish that does not require enzymatic treatment to harvest the cells. In this study, we compare morphological and survival results from rat epithelial keratinocyte cell sheets harvested by temperature-reducing treatment (TT sheets) against cell sheets harvested by enzymatic (dispase) treatment (DT sheets). TT sheets preserve keratin structure in better conditions and express higher levels of collagen IV and laminin 5 than DT sheets. In order to evaluate cell sheet survival after transplantation, we created an in vivo transplant model. Keratinocyte sheets obtained from GFP-positive animals were transplanted into athymic rats. The survival rate 7 days after transplantation of TT sheet was higher than that of DT sheets. Collagen IV and Laminin 5 expression was observed in the TT sheet transplantation group. These results indicate that the remaining basement membrane proteins are important for initial attachment and cell survival. We believe that the cell sheet harvesting method using temperature-responsive culture dishes provides superior cell survival and can solve one of the roadblocks in CEA therapy. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- A Osada
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women's Medical University (TWIns), Japan.,Department of Plastic and Reconstructive Surgery, Tokyo Women's Medical University, Japan
| | - H Sekine
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women's Medical University (TWIns), Japan
| | - K Soejima
- Department of Plastic and Reconstructive Surgery, Nihon University School of Medicine, Tokyo, Japan
| | - H Sakurai
- Department of Plastic and Reconstructive Surgery, Tokyo Women's Medical University, Japan
| | - T Shimizu
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women's Medical University (TWIns), Japan
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Chang D, Shimizu T, Haraguchi Y, Gao S, Sakaguchi K, Umezu M, Yamato M, Liu Z, Okano T. Time Course of Cell Sheet Adhesion to Porcine Heart Tissue after Transplantation. PLoS One 2015; 10:e0137494. [PMID: 26444683 PMCID: PMC4596823 DOI: 10.1371/journal.pone.0137494] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Accepted: 08/18/2015] [Indexed: 11/25/2022] Open
Abstract
Multilayered cell sheets have been produced from bone marrow-derived mesenchymal stem cells (MSCs) for investigating their adhesion properties onto native porcine heart tissue. Once MSCs reached confluence after a 7-day culture on a temperature-responsive culture dish, a MSCs monolayer spontaneously detached itself from the dish, when the culture temperature was reduced from 37 to 20°C. The basal extracellular matrix (ECM) proteins of the single cell sheet are preserved, because this technique requires no proteolytic enzymes for harvesting cell sheet, which become a basic building block for assembling a multilayer cell sheet. The thickness of multilayered cell sheets made from three MSC sheets was found to be approximately 60 μm. For investigating the adhesion properties of the basal and apical sides, the multilayered cell sheets were transplanted onto the surface of the heart's left ventricle. Multilayered cell sheets were histological investigated at 15, 30, 45 and 60 minutes after transplantation by hematoxylin eosin (HE) and azan dyes to determine required time for the adhesion of the multilayered sheets following cell-sheet transplantation. The results showed that only the basal side of multilayered cell sheets significantly enhanced the sheets adhesion onto the surface of heart 30 minutes after transplantation. This study concluded that (1) cell sheets had to be transplanted with its basal side onto the surface of heart tissue and (2) at least 30 minutes were necessary for obtaining the histological adhesion of the sheets to the heart tissue. This study provided clinical evidence and parameters for the successful application of MSC sheets to the myocardium and allowed cell sheet technology to be adapted clinical cell-therapy for myocardial diseases.
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Affiliation(s)
- Dehua Chang
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women’s Medical University, TWIns, 8–1 Kawada-cho, Shinjuku-ku, Tokyo, 162–8666, Japan
- Translational Medical Center for Stem Cell Therapy, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, 200120, China
| | - Tatsuya Shimizu
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women’s Medical University, TWIns, 8–1 Kawada-cho, Shinjuku-ku, Tokyo, 162–8666, Japan
| | - Yuji Haraguchi
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women’s Medical University, TWIns, 8–1 Kawada-cho, Shinjuku-ku, Tokyo, 162–8666, Japan
| | - Shuai Gao
- Translational Medical Center for Stem Cell Therapy, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, 200120, China
| | - Katsuhisa Sakaguchi
- Research Institute for Science and Engineering, Waseda, University, TWIns, 2–2 Wakamatsu-cho, Shinjuku-ku, Tokyo, 162–8480, Japan
| | - Mitsuo Umezu
- Research Institute for Science and Engineering, Waseda, University, TWIns, 2–2 Wakamatsu-cho, Shinjuku-ku, Tokyo, 162–8480, Japan
| | - Masayuki Yamato
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women’s Medical University, TWIns, 8–1 Kawada-cho, Shinjuku-ku, Tokyo, 162–8666, Japan
| | - Zhongmin Liu
- Translational Medical Center for Stem Cell Therapy, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, 200120, China
| | - Teruo Okano
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women’s Medical University, TWIns, 8–1 Kawada-cho, Shinjuku-ku, Tokyo, 162–8666, Japan
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Park JH, Park JY, Nam IC, Hwang SH, Kim CS, Jung JW, Jang J, Lee H, Choi Y, Park SH, Kim SW, Cho DW. Human turbinate mesenchymal stromal cell sheets with bellows graft for rapid tracheal epithelial regeneration. Acta Biomater 2015; 25:56-64. [PMID: 26163763 DOI: 10.1016/j.actbio.2015.07.014] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Revised: 06/28/2015] [Accepted: 07/08/2015] [Indexed: 02/07/2023]
Abstract
Rapid functional epithelial regeneration on the luminal surface is essential when using artificial tracheal grafts to repair tracheal defects. In this study, we imposed human turbinate mesenchymal stromal cell (hTMSC) sheets for tracheal epithelial regeneration, and then assessed their potential as a new clinical cell source. In vitro, hTMSCs sheets showed high capacity to differentiate into tracheal epithelium. We fabricated a poly(ε-caprolactone) (PCL) tracheal graft by indirect three-dimensional (3D) printing technique and created a composite construct by transplanting the hTMSC sheets to its luminal surface of the tracheal graft, then applied this tissue-engineered tracheal graft to non-circumferential tracheal reconstruction in a rabbit model. 4 weeks after implantation, the luminal surface of tissue-engineered tracheal graft was covered by a mature and highly-ciliated epithelium, whereas tracheal grafts without hTMSC sheets were covered by only a thin, immature epithelium. Therefore, hTMSC sheets on the luminal surface of a tissue-engineered tracheal graft can accelerate the tracheal epithelial regeneration, and the tissue-engineered tracheal graft with hTMSC sheets provides a useful clinical alternative for tracheal epithelial regeneration.
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17
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Chen G, Qi Y, Niu L, DI T, Zhong J, Fang T, Yan W. Application of the cell sheet technique in tissue engineering. Biomed Rep 2015; 3:749-757. [PMID: 26623011 DOI: 10.3892/br.2015.522] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Accepted: 09/07/2015] [Indexed: 01/07/2023] Open
Abstract
The development and application of the tissue engineering technique has shown a significant potential in regenerative medicine. However, the limitations of conventional tissue engineering methods (cell suspensions, scaffolds and/or growth factors) restrict its application in certain fields. The novel cell sheet technique can overcome such disadvantages. Cultured cells can be harvested as intact sheets without the use of proteolytic enzymes, such as trypsin or dispase, which can result in cell damage and loss of differentiated phenotypes. The cell sheet is a complete layer, which contains extracellular matrix, ion channel, growth factor receptors, nexin and other important cell surface proteins. Mesenchymal stem cells (MSCs), which have the potential for multiple differentiation, are promising candidate seed cells for tissue engineering. The MSC sheet technique may have potential in the fields of regenerative medicine and tissue engineering in general. Additionally, induced pluripotent stem cell and embryonic stem cell-derived cell sheets have been proposed for tissue regeneration. Currently, the application of cell sheet for tissue reconstruction includes: Direct recipient sites implantation, superposition of cell sheets to construct three-dimensional structure for implantation, or cell sheet combined with scaffolds. The present review discusses the progress in cell sheet techniques, particularly stem cell sheet techniques, in tissue engineering.
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Affiliation(s)
- Guangnan Chen
- Department of Orthopedic Surgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310009, P.R. China
| | - Yiying Qi
- Department of Orthopedic Surgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310009, P.R. China
| | - Lie Niu
- Department of Orthopedic Surgery, Dongping County People's Hospital, Taian, Shandong 271500, P.R. China
| | - Tuoyu DI
- Department of Orthopedic Surgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310009, P.R. China
| | - Jinwei Zhong
- Department of Gastroenterology, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310009, P.R. China
| | - Tingting Fang
- Key Laboratory of Carcinogenesis and Cancer Invasion, Fudan University, Ministry of Education, Liver Cancer Institute, Zhongshan Hospital, Xuhui, Shanghai 200032, P.R. China
| | - Weiqi Yan
- Department of Orthopedic Surgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310009, P.R. China
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18
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Ex Vivo Prefabricated Rat Skin Flap Using Cell Sheets and an Arteriovenous Vascular Bundle. PLASTIC AND RECONSTRUCTIVE SURGERY-GLOBAL OPEN 2015; 3:e424. [PMID: 26180725 PMCID: PMC4494494 DOI: 10.1097/gox.0000000000000400] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Accepted: 04/28/2015] [Indexed: 12/31/2022]
Abstract
BACKGROUND Recently, research on tissue-engineered skin substitutes have been active in plastic surgery, and significant development has been made in this area over the past several decades. However, a regenerative skin flap has not been developed that could provide immediate blood flow after transplantation. Here, we make a regenerative skin flap ex vivo that is potentially suitable for microsurgical transplantation in future clinical applications. METHODS In rats, for preparing a stable vascular carrier, a femoral vascular pedicle was sandwiched between collagen sponges and inserted into a porous chamber in the abdomen. The vascular bed was harvested 3 weeks later, and extracorporeal perfusion was performed. A green fluorescent protein positive epidermal cell sheet was placed on the vascular bed. After perfusion culture, the whole construct was harvested and fixed for morphological analyses. RESULTS After approximately 10 days perfusion, the epidermal cell sheet cornified sufficiently. The desquamated corneum was positive for filaggrin. The basement membrane protein laminin 332 and type 4 collagen were deposited on the interface area between the vascular bed and the epidermal cell sheet. Moreover, an electron microscopic image showed anchoring junctions and keratohyalin granules. These results show that we were able to produce native-like skin. CONCLUSIONS We have succeeded in creating regenerative skin flap ex vivo that is similar to native skin, and this technique could be applied to create various tissues in the future.
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19
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Kim DY, Kwon DY, Kwon JS, Kim JH, Min BH, Kim MS. Stimuli-Responsive InjectableIn situ-Forming Hydrogels for Regenerative Medicines. POLYM REV 2015. [DOI: 10.1080/15583724.2014.983244] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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20
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Tang Z, Okano T. Recent development of temperature-responsive surfaces and their application for cell sheet engineering. Regen Biomater 2014; 1:91-102. [PMID: 26816628 PMCID: PMC4669004 DOI: 10.1093/rb/rbu011] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Revised: 08/29/2014] [Accepted: 08/30/2014] [Indexed: 12/16/2022] Open
Abstract
Cell sheet engineering, which fabricates sheet-like tissues without biodegradable scaffolds, has been proposed as a novel approach for tissue engineering. Cells have been cultured and proliferate to confluence on a temperature-responsive cell culture surface at 37°C. By decreasing temperature to 20°C, an intact cell sheet can be harvested from the culture surface without enzymatic treatment. This new approach enables cells to keep their cell–cell junction, cell surface proteins and extracellular matrix. Therefore, recovered cell sheet can be easily not only transplanted to host tissue, but also constructed a three-dimensional (3D) tissue by layering cell sheets. Moreover, cell sheet manipulation technology and bioreactor have been combined with the cell sheet technology to fabricate a complex and functional 3D tissue in vitro. So far, cell sheet technology has been applied in regenerative medicine for several tissues, and a number of clinical studies have been performed. In this review, recent advances in the preparation of temperature-responsive cell culture surface, the fabrication of organ-like tissue and the clinical application of cell sheet engineering are summarized and discussed.
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Affiliation(s)
- Zhonglan Tang
- Institute of Advanced Biomedical Engineering and Science, TWIns, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo 162-8666, Japan
| | - Teruo Okano
- Institute of Advanced Biomedical Engineering and Science, TWIns, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo 162-8666, Japan
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21
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Lanzalaco S, Scialdone O, Galia A. Effect of interfacial area on heterogeneous free radical grafting of vinyl monomers in supercritical carbon dioxide: Grafting of acrylic acid on poly(vinylidenefluoride) nanoparticles. J Appl Polym Sci 2014. [DOI: 10.1002/app.41541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Sonia Lanzalaco
- Dipartimento Ingegneria Chimica Gestionale Informatica Meccanica; Università di Palermo; Viale delle Scienze Ed.6 90128 Palermo Italy
| | - Onofrio Scialdone
- Dipartimento Ingegneria Chimica Gestionale Informatica Meccanica; Università di Palermo; Viale delle Scienze Ed.6 90128 Palermo Italy
| | - Alessandro Galia
- Dipartimento Ingegneria Chimica Gestionale Informatica Meccanica; Università di Palermo; Viale delle Scienze Ed.6 90128 Palermo Italy
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22
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Owaki T, Shimizu T, Yamato M, Okano T. Cell sheet engineering for regenerative medicine: current challenges and strategies. Biotechnol J 2014; 9:904-14. [PMID: 24964041 DOI: 10.1002/biot.201300432] [Citation(s) in RCA: 130] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Revised: 04/04/2014] [Accepted: 05/22/2014] [Indexed: 12/28/2022]
Abstract
Substantial progress made in the areas of stem cell research and regenerative medicine has provided a number of innovative methods to repair or regenerate defective tissues and organs. Although previous studies regarding regenerative medicine, especially those involving induced pluripotent stem cells, have been actively promoted in the past decade, there remain some challenges that need to be addressed in order to enable clinical applications. Designed for use in clinical applications, cell sheet engineering has been developed as a unique, scaffold-free method of cell processing utilizing temperature-responsive cell culture vessels. Clinical studies using cell sheets have shown positive outcomes and will be translated into clinical practice in the near future. However, several challenges stand in the way of the industrialization of cell sheet products and the widespread acceptance of regenerative medicine based on cell sheet engineering. This review describes current strategies geared towards the realization of the regenerative medicine approach.
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Affiliation(s)
- Toshiyuki Owaki
- Institute of Advanced Biomedical Engineering and Science, TWIns, Tokyo Women's Medical University, Tokyo, Japan
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23
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Tang Z, Akiyama Y, Okano T. Recent development of temperature-responsive cell culture surface using poly(N
-isopropylacrylamide). ACTA ACUST UNITED AC 2014. [DOI: 10.1002/polb.23512] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Zhonglan Tang
- Institute of Advanced Biomedical Engineering and Science; TWIns, Tokyo Women's Medical University; 8-1 Kawada-cho Shinjuku-ku Tokyo 162-8666 Japan
| | - Yoshikatsu Akiyama
- Institute of Advanced Biomedical Engineering and Science; TWIns, Tokyo Women's Medical University; 8-1 Kawada-cho Shinjuku-ku Tokyo 162-8666 Japan
| | - Teruo Okano
- Institute of Advanced Biomedical Engineering and Science; TWIns, Tokyo Women's Medical University; 8-1 Kawada-cho Shinjuku-ku Tokyo 162-8666 Japan
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24
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Akimoto J, Arauchi A, Nakayama M, Kanaya R, Iwase Y, Takagi S, Yamato M, Okano T. Facile cell sheet manipulation and transplantation by usingin situgelation method. J Biomed Mater Res B Appl Biomater 2014; 102:1659-68. [DOI: 10.1002/jbm.b.33148] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2014] [Revised: 03/03/2014] [Accepted: 03/06/2014] [Indexed: 11/10/2022]
Affiliation(s)
- Jun Akimoto
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women's Medical University (TWIns); Shinjuku-ku Tokyo 162-8666 Japan
| | - Ayumi Arauchi
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women's Medical University (TWIns); Shinjuku-ku Tokyo 162-8666 Japan
| | - Masamichi Nakayama
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women's Medical University (TWIns); Shinjuku-ku Tokyo 162-8666 Japan
| | - Ryo Kanaya
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women's Medical University (TWIns); Shinjuku-ku Tokyo 162-8666 Japan
- Kowa Company Limited, 3-6-29, Nishiki, Naka-ku; Nagoya Aichi 460-8625 Japan
| | - Yuko Iwase
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women's Medical University (TWIns); Shinjuku-ku Tokyo 162-8666 Japan
| | - Soichi Takagi
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women's Medical University (TWIns); Shinjuku-ku Tokyo 162-8666 Japan
| | - Masayuki Yamato
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women's Medical University (TWIns); Shinjuku-ku Tokyo 162-8666 Japan
| | - Teruo Okano
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women's Medical University (TWIns); Shinjuku-ku Tokyo 162-8666 Japan
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25
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Synthesis and optimization of fluorescent poly(N-isopropyl acrylamide)-coated surfaces by atom transfer radical polymerization for cell culture and detachment. Biointerphases 2014; 10:019001. [PMID: 25708629 DOI: 10.1116/1.4894530] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Although there are many stimulus-responsive polymers, poly(N-isopropyl acrylamide) (pNIPAM) is of special interest due to the phase change it undergoes in a physiologically relevant temperature range that leads to the release of cells and proteins. The nondestructive release of cells opens up a wide range of applications, including the use of pNIPAM for cell sheet and tissue engineering. In this work, pNIPAM surfaces were generated that can be distinguished from the extracellular matrix. A polymerization technique was adapted that was previously used by Mendez, and the existing protocol was optimized for the culture of mammalian cells. The resulting surfaces were characterized with X-ray photoelectron spectroscopy and goniometry. The developed pNIPAM surfaces were further adapted by incorporation of 5-acrylamidofluorescein to generate fluorescent pNIPAM-coated surfaces. Both types of surfaces (fluorescent and nonfluorescent) sustained cellular attachment and produced cellular detachment of ∼90%, and are therefore suitable for the generation of cell sheets for engineered tissues and other purposes. These surfaces will be useful tools for experiments investigating cellular detachment from pNIPAM and the pNIPAM/cell interface.
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26
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Corneal regeneration by transplantation of corneal epithelial cell sheets fabricated with automated cell culture system in rabbit model. Biomaterials 2013; 34:9010-7. [DOI: 10.1016/j.biomaterials.2013.07.065] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2013] [Accepted: 07/19/2013] [Indexed: 11/23/2022]
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27
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Oie Y, Nozaki T, Takayanagi H, Hara S, Hayashi R, Takeda S, Mori K, Moriya N, Soma T, Tsujikawa M, Saito K, Nishida K. Development of a cell sheet transportation technique for regenerative medicine. Tissue Eng Part C Methods 2013; 20:373-82. [PMID: 24044382 DOI: 10.1089/ten.tec.2013.0266] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
PURPOSE A transportation technique for cell sheets is necessary to standardize regenerative medicine. The aim of this article is to develop and evaluate a new transportation technique for cell sheets. MATERIAL AND METHODS We developed a transportation container with three basic functions: the maintenance of interior temperature, air pressure, and sterility. The interior temperature and air pressure were monitored by a recorder. Human oral mucosal epithelial cells obtained from two healthy volunteers were cultured on temperature-responsive culture dishes. The epithelial cell sheets were transported via an airplane between the Osaka University and Tohoku University using the developed cell transportation container. Histological and immunohistochemical analyses and flow cytometric analyses for cell viability and cell purity were performed for the cell sheets before and 12 h after transportation to assess the influence of transportation on the cell sheets. Sterility tests and screening for endotoxin and mycoplasma in the cell sheets were performed before and after transportation. RESULTS During transportation via an airplane, the temperature inside the container was maintained above 32°C, and the changes in air pressure remained within 10 hPa. The cell sheets were well stratified and successfully harvested before and after transportation. The expression patterns of keratin 3/76, p63, and MUC16 were equivalent before and after transportation. However, the expression of ZO-1 in the cell sheet after transportation was slightly weaker than that before transportation. The cell viability was 72.0% before transportation and 77.3% after transportation. The epithelial purity was 94.6% before transportation and 87.9% after transportation. Sterility tests and screening for endotoxin and mycoplasma were negative for all cell sheets. CONCLUSION The newly developed transportation technique for air travel is essential technology for regenerative medicine and promotes the standardization and spread of regenerative therapies.
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Affiliation(s)
- Yoshinori Oie
- 1 Department of Ophthalmology, Osaka University Graduate School of Medicine , Osaka, Japan
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28
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Liu D, Wang T, Liu X, Tong Z. Cell proliferation and cell sheet detachment from the positively and negatively charged nanocomposite hydrogels. Biopolymers 2013; 101:58-65. [DOI: 10.1002/bip.22273] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2012] [Revised: 03/14/2013] [Accepted: 04/12/2013] [Indexed: 01/06/2023]
Affiliation(s)
- Dan Liu
- Research Institute of Materials Science, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology; Guangzhou 510640 People's Republic of China
| | - Tao Wang
- Research Institute of Materials Science, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology; Guangzhou 510640 People's Republic of China
| | - Xinxing Liu
- Research Institute of Materials Science, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology; Guangzhou 510640 People's Republic of China
| | - Zhen Tong
- Research Institute of Materials Science, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology; Guangzhou 510640 People's Republic of China
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29
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Sefcik LS, Kaminski A, Ling K, Laschewsky A, Lutz JF, Wischerhoff E. Effects of PEG-Based Thermoresponsive Polymer Brushes on Fibroblast Spreading and Gene Expression. Cell Mol Bioeng 2013. [DOI: 10.1007/s12195-013-0286-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
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30
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Successive grafting of PHEMA and PIPAAm onto cell culture surface enables rapid cell sheet recovery. Tissue Eng Regen Med 2013. [DOI: 10.1007/s13770-013-0401-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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31
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Umemoto T, Yamato M, Nishida K, Okano T. Regenerative medicine of cornea by cell sheet engineering using temperature-responsive culture surfaces. ACTA ACUST UNITED AC 2013. [DOI: 10.1007/s11434-013-5742-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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32
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Lin YC, Grahovac T, Oh SJ, Ieraci M, Rubin JP, Marra KG. Evaluation of a multi-layer adipose-derived stem cell sheet in a full-thickness wound healing model. Acta Biomater 2013; 9:5243-50. [PMID: 23022891 DOI: 10.1016/j.actbio.2012.09.028] [Citation(s) in RCA: 98] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2012] [Revised: 09/13/2012] [Accepted: 09/21/2012] [Indexed: 01/31/2023]
Abstract
Cell sheet technology has been studied for applications such as bone, ligament and skin regeneration. There has been limited examination of adipose-derived stem cells (ASCs) for cell sheet applications. The specific aim of this study was to evaluate ASC sheet technology for wound healing. ASCs were isolated from discarded human abdominal subcutaneous adipose tissue, and ASC cell sheets were created on the surface of fibrin-grafted culture dishes. In vitro examination consisted of the histochemical characterization of the ASC sheets. In vivo experiments consisted of implanting single-layer cell sheets, triple-layer cell sheets or non-treated control onto a full-thickness wound defect (including epidermis, dermis, and subcutaneous fat) in nude mice for 3 weeks. Cell sheets were easily peeled off from the culture dishes using forceps. The single- and triple-layer ASC sheets showed complete extracellular structure via hematoxylin & eosin staining. In vivo, the injury area was measured 7, 10, 14 and 21 days post-treatment to assess wound recovery. The ASC sheet-treated groups' injury area was significantly smaller than that of the non-treated control group at all time points except day 21. The triple-layer ASC sheet treatment significantly enhanced wound healing compared to the single-layer ASC sheet at 7, 10 and 14 days. The density of blood vessels showed that ASC cell sheet treatment slightly enhanced total vessel proliferation compared to the empty wound injury treatment. Our studies indicate that ASC sheets present a potentially viable matrix for full-thickness defect wound healing in a mouse model. Consequently, our ASC sheet technology represents a substantial advance in developing various types of three-dimensional tissues.
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Affiliation(s)
- Yen-Chih Lin
- Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, PA, USA
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33
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34
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Ikeda S, Uchida T, Fukuda T, Arai F, Negoro M. Introduction. Microsurgery 2012. [DOI: 10.1201/b11991-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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35
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Tekin H, Sanchez JG, Tsinman T, Langer R, Khademhosseini A. Thermoresponsive Platforms for Tissue Engineering and Regenerative Medicine. AIChE J 2011; 57:3249-3258. [PMID: 23105146 DOI: 10.1002/aic.12801] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Halil Tekin
- Dept. of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA 02139
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36
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Tekin H, Ozaydin-Ince G, Tsinman T, Gleason KK, Langer R, Khademhosseini A, Demirel MC. Responsive microgrooves for the formation of harvestable tissue constructs. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:5671-9. [PMID: 21449596 PMCID: PMC3098811 DOI: 10.1021/la200183x] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Given its biocompatibility, elasticity, and gas permeability, poly(dimethylsiloxane) (PDMS) is widely used to fabricate microgrooves and microfluidic devices for three-dimensional (3D) cell culture studies. However, conformal coating of complex PDMS devices prepared by standard microfabrication techniques with desired chemical functionality is challenging. This study describes the conformal coating of PDMS microgrooves with poly(N-isopropylacrylamide) (PNIPAAm) by using initiated chemical vapor deposition (iCVD). These microgrooves guided the formation of tissue constructs from NIH-3T3 fibroblasts that could be retrieved by the temperature-dependent swelling property and hydrophilicity change of the PNIPAAm. The thickness of swollen PNIPAAm films at 24 °C was approximately 3 times greater than at 37 °C. Furthermore, PNIPAAm-coated microgroove surfaces exhibit increased hydrophilicity at 24 °C (contact angle θ = 30° ± 2) compared to 37 °C (θ = 50° ± 1). Thus PNIPAAm film on the microgrooves exhibits responsive swelling with higher hydrophilicity at room temperature, which could be used to retrieve tissue constructs. The resulting tissue constructs were the same size as the grooves and could be used as modules in tissue fabrication. Given its ability to form and retrieve cell aggregates and its integration with standard microfabrication, PNIPAAm-coated PDMS templates may become useful for 3D cell culture applications in tissue engineering and drug discovery.
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Affiliation(s)
- Halil Tekin
- Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139, USA
- Department of Medicine, Center for Biomedical Engineering, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Building 76-661, 77 Massachusetts Avenue, Cambridge, MA, 02139, USA
| | - Gozde Ozaydin-Ince
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139
| | - Tonia Tsinman
- Department of Medicine, Center for Biomedical Engineering, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Karen K. Gleason
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139
| | - Robert Langer
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Building 76-661, 77 Massachusetts Avenue, Cambridge, MA, 02139, USA
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Prof. Melik C. Demirel - Corresponding-Author (), Prof. Ali Khademhosseini - Corresponding-Author (), Prof. Robert Langer - Corresponding-Author ()
| | - Ali Khademhosseini
- Department of Medicine, Center for Biomedical Engineering, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard Medical School, Boston, MA, 02138
- Prof. Melik C. Demirel - Corresponding-Author (), Prof. Ali Khademhosseini - Corresponding-Author (), Prof. Robert Langer - Corresponding-Author ()
| | - Melik C. Demirel
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139
- Wyss Institute for Biologically Inspired Engineering, Harvard Medical School, Boston, MA, 02138
- Materials Research Institute and Department of Engineering Science, Pennsylvania State University, University Park, PA 16802
- Prof. Melik C. Demirel - Corresponding-Author (), Prof. Ali Khademhosseini - Corresponding-Author (), Prof. Robert Langer - Corresponding-Author ()
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Tang Z, Akiyama Y, Yamato M, Okano T. Comb-type grafted poly(N-isopropylacrylamide) gel modified surfaces for rapid detachment of cell sheet. Biomaterials 2010; 31:7435-43. [DOI: 10.1016/j.biomaterials.2010.06.040] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2010] [Accepted: 06/23/2010] [Indexed: 11/24/2022]
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Qiu F, Chen Y, Cheng J, Wang C, Xu H, Zhao X. A Simple Method for Cell Sheet Fabrication Using Mica Surfaces Grafted with Peptide Detergent A6K. Macromol Biosci 2010; 10:881-6. [DOI: 10.1002/mabi.200900360] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Cooperstein MA, Canavan HE. Biological cell detachment from poly(N-isopropyl acrylamide) and its applications. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:7695-707. [PMID: 20496955 DOI: 10.1021/la902587p] [Citation(s) in RCA: 99] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Over the past two decades, poly(N-isopropyl acrylamide) (pNIPAM) has become widely used for bioengineering applications. In particular, pNIPAM substrates have been used for the nondestructive release of biological cells and proteins. In this feature article, we review the applications for which pNIPAM substrates have been used to release biological cells, including for the study of the extracellular matrix (ECM), for cell sheet engineering and tissue transplantation, the formation of tumorlike spheroids, the study of bioadhesion and bioadsorption, and the manipulation or deformation of individual cells. The articles reviewed include submissions from our own group as well as from those performing research in the field worldwide.
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Affiliation(s)
- Marta A Cooperstein
- Department of Chemical and Nuclear Engineering, Center for Biomedical Engineering, University of New Mexico, Albuquerque, New Mexico, USA
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Fukumori K, Akiyama Y, Kumashiro Y, Kobayashi J, Yamato M, Sakai K, Okano T. Characterization of Ultra-Thin Temperature-Responsive Polymer Layer and Its Polymer Thickness Dependency on Cell Attachment/Detachment Properties. Macromol Biosci 2010; 10:1117-29. [DOI: 10.1002/mabi.201000043] [Citation(s) in RCA: 103] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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41
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Varghese VM, Raj V, Sreenivasan K, Kumary TV. In vitro cytocompatibility evaluation of a thermoresponsive NIPAAm-MMA copolymeric surface using L929 cells. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2010; 21:1631-1639. [PMID: 20094902 DOI: 10.1007/s10856-010-3992-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2009] [Accepted: 01/07/2010] [Indexed: 05/28/2023]
Abstract
Scaffold free tissue constructs are preferred in tissue engineering as they overcome all the problems associated with scaffolds. Stimuli responsive polymers enable generation of scaffold free multilayered tissue constructs which would in turn reduce the use of biomaterials in vivo. In this study, we investigated cytocompatibility and thermoresponsiveness of a copolymer of N-Isopropylacrylamide and Methyl Methacrylate. Thermoresponsive surfaces were prepared by coating tissue culture polystyrene with the copolymer solution in isopropanol. Mammalian fibroblast cells (L929 cells) readily adhered on the copolymer. The viability and cellular activity was ensured through Neutral red staining, MTT assay, Tritiated thymidine uptake assay and Immunofluorescent staining for cytoskeletal organisation. Incubation under lower critical solution temperature of copolymer resulted in intact detachment of cells. To conclude, in-house synthesized cytocompatible smart culture substrate intended for tissue engineering was developed using a cost effective and simple technique. Moreover, presence of methyl methacrylate in the copolymer reduced the lower critical solution temperature facilitating extended in vitro manipulation time. As the copolymer is insoluble in water, the copolymer could be polymerised without additional crosslinkers.
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Affiliation(s)
- Viji Mary Varghese
- Tissue Culture Laboratory, Division of Implant Biology, Biomedical Technology Wing, Sree Chithra Tirunal Institute for Medical Sciences and Technology, Trivandrum, Kerala, India
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Sasagawa T, Shimizu T, Sekiya S, Haraguchi Y, Yamato M, Sawa Y, Okano T. Design of prevascularized three-dimensional cell-dense tissues using a cell sheet stacking manipulation technology. Biomaterials 2009; 31:1646-54. [PMID: 19962187 DOI: 10.1016/j.biomaterials.2009.11.036] [Citation(s) in RCA: 204] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2009] [Accepted: 11/16/2009] [Indexed: 01/15/2023]
Abstract
To survive three-dimensional (3-D) cell-dense thick tissues after transplantation, the improvements of hypoxia, nutrient insufficiency, and accumulation of waste products are required. This study presents a strategy for the initiation of prevascular networks in a 3-D tissue construct by sandwiching endothelial cells between the cell sheets. For obtaining a stable stacked cell sheet construct, a sophisticated 3-D cell sheet manipulation system using temperature-responsive culture dishes and a cell sheet manipulator was developed. When sparsely cultured human umbilical vein endothelial cells (HUVECs) were sandwiched between two myoblast sheets, the inserted HUVECs sprouted and formed network structures in vitro. Additionally, when myoblast sheets and HUVECs were alternately sandwiched, endothelial cell connections through the layers and capillary-like structures were found in a five-layer construct. Moreover, the endothelial networks in the five-layer myoblast sheet construct were observed to connect to the host vessels after transplantation into the subcutaneous tissues of nude rats, resulted in a neovascularization that allow the graft to survive. These results indicated that the prevascularized myoblast sheet constructs could induce functional anastomosis. Consequently, our prevascularizing method using a cell sheet stacking manipulation technology provides a substantial advance for developing various types of three-dimensional tissues and contributes to regenerative medicine.
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Affiliation(s)
- Tadashi Sasagawa
- Institute of Advanced Biomedical Engineering and Science, Tokyo Woman's Medical University, TWIns, 8-1 Kawada-cho, Shinjuku-ku, Tokyo 162-8666, Japan
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Elloumi Hannachi I, Itoga K, Kumashiro Y, Kobayashi J, Yamato M, Okano T. Fabrication of transferable micropatterned-co-cultured cell sheets with microcontact printing. Biomaterials 2009; 30:5427-32. [DOI: 10.1016/j.biomaterials.2009.06.033] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2009] [Accepted: 06/18/2009] [Indexed: 10/20/2022]
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Nozaki T, Yamato M, Inuma T, Nishida K, Okano T. Transportation of transplantable cell sheets fabricated with temperature-responsive culture surfaces for regenerative medicine. J Tissue Eng Regen Med 2008; 2:190-5. [PMID: 18493908 DOI: 10.1002/term.80] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Here we report transportation of cell sheets fabricated on temperature-responsive culture surfaces for regenerative medicine. On the surfaces cells adhere, spread and proliferate at 37 degrees C, but upon temperature reduction below 32 degrees C all the cells are spontaneously detached. When cells on the surfaces are challenged by long distance transportation, maintaining the temperature is critical. Therefore, we developed a portable homothermal container to keep the inner temperature at 36 degrees C for > 30 h without any need for batteries or energy supply. We transported and compared fibroblast sheets cultured on temperature-responsive surfaces in the container, at room temperature in a car, or on ice. After 8 h transportation by car, all cells at room temperature and on ice were detached from the surfaces and some were folded and broken into tiny pieces. On the other hand, fibroblast sheets transported in the container retained their adhesion to the dish surfaces and intact cell sheets were successfully harvested by temperature reduction. During the transportation, cell viability and histology were not impaired. This unique transportation device would be useful for cell sheet-based regenerative medicine utilizing temperature-responsive culture surfaces.
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Affiliation(s)
- Takayuki Nozaki
- Advanced Research Laboratory, Hitachi Ltd., 2520 Akanuma, Hiki-gun Hatoyama-cho, Saitama 350-0395, Japan
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45
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Isenberg BC, Tsuda Y, Williams C, Shimizu T, Yamato M, Okano T, Wong JY. A thermoresponsive, microtextured substrate for cell sheet engineering with defined structural organization. Biomaterials 2008; 29:2565-72. [PMID: 18377979 DOI: 10.1016/j.biomaterials.2008.02.023] [Citation(s) in RCA: 100] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2008] [Accepted: 02/28/2008] [Indexed: 12/01/2022]
Abstract
The proper function of many tissues depends critically on the structural organization of the cells and matrix of which they are comprised. Therefore, in order to engineer functional tissue equivalents that closely mimic the unique properties of native tissues it is necessary to develop strategies for reproducing the complex, highly organized structure of these tissues. To this end, we sought to develop a simple method for generating cell sheets that have defined ECM/cell organization using microtextured, thermoresponsive polystyrene substrates to guide cell organization and tissue growth. The patterns consisted of large arrays of alternating grooves and ridges (50 microm wide, 5 microm deep). Vascular smooth muscle cells cultured on these substrates produced intact sheets consisting of cells that exhibited strong alignment in the direction of the micropattern. These sheets could be readily transferred from patterned substrates to non-patterned substrates without the loss of tissue organization. Ultimately, such sheets will be layered to form larger tissues with defined ECM/cell organization that spans multiple length scales.
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Affiliation(s)
- Brett C Isenberg
- Department of Biomedical Engineering, Boston University, 44 Cummington Street, Boston, MA 02215, USA
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46
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Grafting of styrene/maleic anhydride copolymer onto PVDF membrane by supercritical carbon dioxide: Preparation, characterization and biocompatibility. J Supercrit Fluids 2008. [DOI: 10.1016/j.supflu.2008.02.002] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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da Silva RM, Mano JF, Reis RL. Smart thermoresponsive coatings and surfaces for tissue engineering: switching cell-material boundaries. Trends Biotechnol 2007; 25:577-83. [DOI: 10.1016/j.tibtech.2007.08.014] [Citation(s) in RCA: 258] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2007] [Revised: 08/15/2007] [Accepted: 08/28/2007] [Indexed: 11/27/2022]
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49
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Yang J, Yamato M, Shimizu T, Sekine H, Ohashi K, Kanzaki M, Ohki T, Nishida K, Okano T. Reconstruction of functional tissues with cell sheet engineering. Biomaterials 2007; 28:5033-43. [PMID: 17761277 DOI: 10.1016/j.biomaterials.2007.07.052] [Citation(s) in RCA: 325] [Impact Index Per Article: 19.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2007] [Accepted: 07/31/2007] [Indexed: 12/13/2022]
Abstract
The field of tissue engineering has yielded several successes in early clinical trials of regenerative medicine using living cells seeded into biodegradable scaffolds. In contrast to methods that combine biomaterials with living cells, we have developed an approach that uses culture surfaces grafted with the temperature-responsive polymer poly(N-isoproplyacrylamide) that allows for controlled attachment and detachment of living cells via simple temperature changes. Using cultured cell sheets harvested from temperature-responsive surfaces, we have established cell sheet engineering to create functional tissue sheets to treat a wide range of diseases from corneal dysfunction to esophageal cancer, tracheal resection, and cardiac failure. Additionally, by exploiting the unique ability of cell sheets to generate three-dimensional tissues composed of only cultured cells and their deposited extracellular matrix, we have also developed methods to create thick vascularized tissues as well as, organ-like systems for the heart and liver. Cell sheet engineering therefore provides a novel alternative for regenerative medicine approaches that require the re-creation of functional tissue structures.
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Affiliation(s)
- Joseph Yang
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo 162-8666, Japan
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50
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Saito A, Aung T, Sekiguchi K, Sato Y, Vu DM, Inagaki M, Kanai G, Tanaka R, Suzuki H, Kakuta T. Present status and perspectives of bioartificial kidneys. J Artif Organs 2006; 9:130-5. [PMID: 16998696 DOI: 10.1007/s10047-006-0336-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2005] [Accepted: 04/18/2006] [Indexed: 11/26/2022]
Abstract
Currently, hemodialysis is not adequate as a renal replacement therapy because it provides intermittent treatment and does not provide the metabolic function of renal tubules. The next generation of artificial kidney should replace intermittent hemodialysis with continuous hemofiltration and provide the full metabolic function of renal tubules. The current decade has witnessed the development of bioartificial kidneys using artificial membranes and renal tubular epithelial cells. Active transport and metabolic functions were confirmed in the confluent monolayers of tubular cells on artificial membranes. Bioartificial kidneys have succeeded in improving the prognosis of patients with multiple organ dysfunction, presumably by lowering plasma cytokine levels in patients. For successful treatment of chronic renal failure using bioartificial kidneys, it is necessary to overcome some technical hurdles such as improving the antithrombogenic properties of the surface of artificial membranes and prolonging the function of renal tubule cells on an artificial membrane. Transfection of functional protein genes into renal tubule cells enables bioartificial tubule devices to increase their transport capacity and metabolic functions such as digoxin secretion and water transport. The development of wearable roller pumps is also essential for the clinical application of a continuous treatment system.
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Affiliation(s)
- Akira Saito
- Division of Nephrology, Department of Medicine, Tokai University School of Medicine, Bohseidai, Isehara, Kanagawa 259-1193, Japan.
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