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Ouyang L, Armstrong JPK, Chen Q, Lin Y, Stevens MM. Void-free 3D Bioprinting for In-situ Endothelialization and Microfluidic Perfusion. ADVANCED FUNCTIONAL MATERIALS 2020; 30:1909009. [PMID: 35677899 PMCID: PMC7612826 DOI: 10.1002/adfm.201909009] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Two major challenges of 3D bioprinting are the retention of structural fidelity and efficient endothelialization for tissue vascularization. We address both of these issues by introducing a versatile 3D bioprinting strategy, in which a templating bioink is deposited layer-by-layer alongside a matrix bioink to establish void-free multimaterial structures. After crosslinking the matrix phase, the templating phase is sacrificed to create a well-defined 3D network of interconnected tubular channels. This void-free 3D printing (VF-3DP) approach circumvents the traditional concerns of structural collapse, deformation and oxygen inhibition, moreover, it can be readily used to print materials that are widely considered "unprintable". By pre-loading endothelial cells into the templating bioink, the inner surface of the channels can be efficiently cellularized with a confluent endothelial layer. This in-situ endothelialization method can be used to produce endothelium with a far greater uniformity than can be achieved using the conventional post-seeding approach. This VF-3DP approach can also be extended beyond tissue fabrication and towards customized hydrogel-based microfluidics and self-supported perfusable hydrogel constructs.
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52
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Kim E, Kojima M, Mae Y, Arai T. High-Speed Manipulation of Microobjects Using an Automated Two-Fingered Microhand for 3D Microassembly. MICROMACHINES 2020; 11:mi11050534. [PMID: 32456288 PMCID: PMC7281088 DOI: 10.3390/mi11050534] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Revised: 05/19/2020] [Accepted: 05/22/2020] [Indexed: 02/05/2023]
Abstract
To assemble microobjects including biological cells quickly and precisely, a fully automated pick-and-place operation is applied. In micromanipulation in liquid, the challenges include strong adhesion forces and high dynamic viscosity. To solve these problems, a reliable manipulation system and special releasing techniques are indispensable. A microhand having dexterous motion is utilized to grasp an object stably, and an automated stage transports the object quickly. To detach the object adhered to one of the end effectors, two releasing methods—local stream and a dynamic releasing—are utilized. A system using vision-based techniques for the recognition of two fingertips and an object, as well automated releasing methods, can increase the manipulation speed to faster than 800 ms/sphere with a 100% success rate (N = 100). To extend this manipulation technique, 2D and 3D assembly that manipulates several objects is attained by compensating the positional error. Finally, we succeed in assembling 80–120 µm of microbeads and spheroids integrated by NIH3T3 cells.
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Affiliation(s)
- Eunhye Kim
- Department of Systems Innovation, Graduate School of Engineering Science, Osaka University, Osaka 560-8531, Japan
- Correspondence: (E.K.); (M.K.)
| | - Masaru Kojima
- Department of Systems Innovation, Graduate School of Engineering Science, Osaka University, Osaka 560-8531, Japan
- Correspondence: (E.K.); (M.K.)
| | - Yasushi Mae
- Faculty of Engineering Science, Kansai University, Osaka 564-8680, Japan;
| | - Tatsuo Arai
- Global Alliance Laboratory, The University of Electro-Communications, Tokyo 182-8585, Japan;
- Beijing Advanced Innovation Center for Intelligent Robot and Systems, Beijing Institute of Technology, Beijing 100081, China
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53
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Ramadhan W, Kagawa G, Moriyama K, Wakabayashi R, Minamihata K, Goto M, Kamiya N. Construction of higher-order cellular microstructures by a self-wrapping co-culture strategy using a redox-responsive hydrogel. Sci Rep 2020; 10:6710. [PMID: 32317652 PMCID: PMC7174313 DOI: 10.1038/s41598-020-63362-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Accepted: 03/30/2020] [Indexed: 02/06/2023] Open
Abstract
In this report, a strategy for constructing three-dimensional (3D) cellular architectures comprising viable cells is presented. The strategy uses a redox-responsive hydrogel that degrades under mild reductive conditions, and a confluent monolayer of cells (i.e., cell sheet) cultured on the hydrogel surface peels off and self-folds to wrap other cells. As a proof-of-concept, the self-folding of fibroblast cell sheet was triggered by immersion in aqueous cysteine, and this folding process was controlled by the cysteine concentration. Such folding enabled the wrapping of human hepatocellular carcinoma (HepG2) spheroids, human umbilical vein endothelial cells and collagen beads, and this process improved cell viability, the secretion of metabolites and the proliferation rate of the HepG2 cells when compared with a two-dimensional culture under the same conditions. A key concept of this study is the ability to interact with other neighbouring cells, providing a new, simple and fast method to generate higher-order cellular aggregates wherein different types of cellular components are added. We designated the method of using a cell sheet to wrap another cellular aggregate the 'cellular Furoshiki'. The simple self-wrapping Furoshiki technique provides an alternative approach to co-culture cells by microplate-based systems, especially for constructing heterogeneous 3D cellular microstructures.
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Affiliation(s)
- Wahyu Ramadhan
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Fukuoka, 819-0395, Japan
| | - Genki Kagawa
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Fukuoka, 819-0395, Japan
| | - Kousuke Moriyama
- Department of Chemical and Biological Engineering, National Institute of Technology, Sasebo College, Okishin-cho, Sasebo, Nagasaki, 857-1193, Japan
| | - Rie Wakabayashi
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Fukuoka, 819-0395, Japan
| | - Kosuke Minamihata
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Fukuoka, 819-0395, Japan
| | - Masahiro Goto
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Fukuoka, 819-0395, Japan
- Center for Future Chemistry, Kyushu University, Fukuoka, 819-0395, Japan
| | - Noriho Kamiya
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Fukuoka, 819-0395, Japan.
- Center for Future Chemistry, Kyushu University, Fukuoka, 819-0395, Japan.
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54
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Baek J, Cho Y, Park HJ, Choi G, Lee JS, Lee M, Yu SJ, Cho SW, Lee E, Im SG. A Surface-Tailoring Method for Rapid Non-Thermosensitive Cell-Sheet Engineering via Functional Polymer Coatings. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1907225. [PMID: 32157771 DOI: 10.1002/adma.201907225] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Revised: 12/30/2019] [Accepted: 02/18/2020] [Indexed: 06/10/2023]
Abstract
Cell sheet engineering, a technique utilizing a monolayer cell sheet, has recently emerged as a promising technology for scaffold-free tissue engineering. In contrast to conventional tissue-engineering approaches, the cell sheet technology allows cell harvest as a continuous cell sheet with intact extracellular matrix proteins and cell-cell junction, which facilitates cell transplantation without any other artificial biomaterials. A facile, non-thermoresponsive method is demonstrated for a rapid but highly reliable platform for cell-sheet engineering. The developed method exploits the precise modulation of cell-substrate interactions by controlling the surface energy of the substrate via a series of functional polymer coatings to enable prompt cell sheet harvesting within 100 s. The engineered surface can trigger an intrinsic cellular response upon the depletion of divalent cations, leading to spontaneous cell sheet detachment under physiological conditions (pH 7.4 and 37 °C) in a non-thermoresponsive manner. Additionally, the therapeutic potential of the cell sheet is successfully demonstrated by the transplantation of multilayered cell sheets into mouse models of diabetic wounds and ischemia. These findings highlight the ability of the developed surface for non-thermoresponsive cell sheet engineering to serve as a robust platform for regenerative medicine and provide significant breakthroughs in cell sheet technology.
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Affiliation(s)
- Jieung Baek
- Department of Chemical and Biomolecular Engineering and KI for NanoCentury, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Younghak Cho
- Department of Chemical and Biomolecular Engineering and KI for NanoCentury, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Hyun-Ji Park
- Department of Biotechnology, Yonsei University, Seoul, 03722, Republic of Korea
| | - Goro Choi
- Department of Chemical and Biomolecular Engineering and KI for NanoCentury, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Jong Seung Lee
- Department of Biotechnology, Yonsei University, Seoul, 03722, Republic of Korea
| | - Minseok Lee
- Department of Chemical and Biomolecular Engineering and KI for NanoCentury, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Seung Jung Yu
- Department of Chemical and Biomolecular Engineering and KI for NanoCentury, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Seung-Woo Cho
- Department of Biotechnology, Yonsei University, Seoul, 03722, Republic of Korea
- Center for Nanomedicine, Institute for Basic Science (IBS), Seoul, 03772, Republic of Korea
- Yonsei-IBS Institute, Yonsei University, Seoul, 03722, Republic of Korea
| | - Eunjung Lee
- Department of Chemical and Biomolecular Engineering and KI for NanoCentury, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Sung Gap Im
- Department of Chemical and Biomolecular Engineering and KI for NanoCentury, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
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55
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da Silva Morais A, Vieira S, Zhao X, Mao Z, Gao C, Oliveira JM, Reis RL. Advanced Biomaterials and Processing Methods for Liver Regeneration: State-of-the-Art and Future Trends. Adv Healthc Mater 2020; 9:e1901435. [PMID: 31977159 DOI: 10.1002/adhm.201901435] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 11/13/2019] [Indexed: 12/17/2022]
Abstract
Liver diseases contribute markedly to the global burden of mortality and disease. The limited organ disposal for orthotopic liver transplantation results in a continuing need for alternative strategies. Over the past years, important progress has been made in the field of tissue engineering (TE). Many of the early trials to improve the development of an engineered tissue construct are based on seeding cells onto biomaterial scaffolds. Nowadays, several TE approaches have been developed and are applied to one vital organ: the liver. Essential elements must be considered in liver TE-cells and culturing systems, bioactive agents or growth factors (GF), and biomaterials and processing methods. The potential of hepatocytes, mesenchymal stem cells, and others as cell sources is demonstrated. They need engineered biomaterial-based scaffolds with perfect biocompatibility and bioactivity to support cell proliferation and hepatic differentiation as well as allowing extracellular matrix deposition and vascularization. Moreover, they require a microenvironment provided using conventional or advanced processing technologies in order to supply oxygen, nutrients, and GF. Herein the biomaterials and the conventional and advanced processing technologies, including cell-sheets process, 3D bioprinting, and microfluidic systems, as well as the future trends in these major fields are discussed.
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Affiliation(s)
- Alain da Silva Morais
- 3B's Research GroupI3Bs – Research Institute on Biomaterials, Biodegradables and BiomimeticsUniversity of MinhoHeadquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine 4805‐017 Barco Guimarães Portugal
- ICVS/3B's–PT Government Associate Laboratory Braga/ Guimarães Portugal
| | - Sílvia Vieira
- 3B's Research GroupI3Bs – Research Institute on Biomaterials, Biodegradables and BiomimeticsUniversity of MinhoHeadquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine 4805‐017 Barco Guimarães Portugal
- ICVS/3B's–PT Government Associate Laboratory Braga/ Guimarães Portugal
| | - Xinlian Zhao
- MOE Key Laboratory of Macromolecular Synthesis and FunctionalizationDepartment of Polymer Science and EngineeringZhejiang University Hangzhou 310027 China
| | - Zhengwei Mao
- MOE Key Laboratory of Macromolecular Synthesis and FunctionalizationDepartment of Polymer Science and EngineeringZhejiang University Hangzhou 310027 China
| | - Changyou Gao
- MOE Key Laboratory of Macromolecular Synthesis and FunctionalizationDepartment of Polymer Science and EngineeringZhejiang University Hangzhou 310027 China
| | - Joaquim M. Oliveira
- 3B's Research GroupI3Bs – Research Institute on Biomaterials, Biodegradables and BiomimeticsUniversity of MinhoHeadquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine 4805‐017 Barco Guimarães Portugal
- ICVS/3B's–PT Government Associate Laboratory Braga/ Guimarães Portugal
- The Discoveries Centre for Regenerative and Precision MedicineUniversity of Minho 4805‐017 Barco Guimarães Portugal
| | - Rui L. Reis
- 3B's Research GroupI3Bs – Research Institute on Biomaterials, Biodegradables and BiomimeticsUniversity of MinhoHeadquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine 4805‐017 Barco Guimarães Portugal
- ICVS/3B's–PT Government Associate Laboratory Braga/ Guimarães Portugal
- The Discoveries Centre for Regenerative and Precision MedicineUniversity of Minho 4805‐017 Barco Guimarães Portugal
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56
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Gao B, Matsuura K, Shimizu T. Recent progress in induced pluripotent stem cell-derived cardiac cell sheets for tissue engineering. Biosci Trends 2020; 13:292-298. [PMID: 31527326 DOI: 10.5582/bst.2019.01227] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The past decade has witnessed remarkable development in tissue engineering technologies and stem cells. Our lab has developed a novel technology - "cell sheet technology" for tissue engineering. After the confluent cells are cultured on an innovative temperature-responsive culture dish, the cells can be harvested as an intact sheet by lowering temperature. We have successfully created multiple cell sheet-based tissues for therapies of a vast variety of diseases, in particular, myocardial diseases. On the other side, the discovery of human induced pluripotent stem cells (hiPSC) enables stable production of defined tissue-specific cell types and thus makes it possible to regenerate tissues or even organs for clinical application and in vitro drug screening/disease modeling. Recently, we have combined cell sheet technology and hiPSC-derived cardiac cells for fabrication of functional human cardiac tissues. This review summarizes ongoing challenges in this field and our progresses in solving issues, such as large scale culture of hiPSC-derived cardiac cells, elimination of undifferentiated iPSCs to decrease the risk of tumor formation as well as myocardial tissue fabrication technologies.
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Affiliation(s)
- Botao Gao
- Institute of Advanced Biomedical Engineering and Science, TWIns, Tokyo Women's Medical University
| | - Katsuhisa Matsuura
- Institute of Advanced Biomedical Engineering and Science, TWIns, Tokyo Women's Medical University
| | - Tatsuya Shimizu
- Institute of Advanced Biomedical Engineering and Science, TWIns, Tokyo Women's Medical University
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57
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Maruyama M, Wei L, Thio T, Storaci HW, Ueda Y, Yao J. The Effect of Mesenchymal Stem Cell Sheets on Early Healing of the Achilles Tendon in Rats. Tissue Eng Part A 2020; 26:206-213. [DOI: 10.1089/ten.tea.2019.0163] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Affiliation(s)
- Masahiro Maruyama
- Department of Orthopaedic Surgery, Stanford University School of Medicine, Stanford, California
| | - Le Wei
- Department of Orthopaedic Surgery, Stanford University School of Medicine, Stanford, California
| | - Timothy Thio
- Department of Orthopaedic Surgery, Stanford University School of Medicine, Stanford, California
| | - Hunter W. Storaci
- Department of Orthopaedic Surgery, Stanford University School of Medicine, Stanford, California
| | - Yusuke Ueda
- Department of Orthopaedic Surgery, Stanford University School of Medicine, Stanford, California
| | - Jeffrey Yao
- Department of Orthopaedic Surgery, Stanford University School of Medicine, Stanford, California
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58
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Ren T, Chen P, Gu L, Ogut MG, Demirci U. Soft Ring-Shaped Cellu-Robots with Simultaneous Locomotion in Batches. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1905713. [PMID: 31773837 DOI: 10.1002/adma.201905713] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 10/20/2019] [Indexed: 06/10/2023]
Abstract
Untethered mini-robots can move single cells or aggregates to build complex constructs in confined spaces and may enable various biomedical applications such as regenerative repair in medicine and biosensing in bioengineering. However, a significant challenge is the ability to control multiple microrobots simultaneously in the same space to operate toward a common goal in a distributed operation. A locomotion strategy that can simultaneously guide the formation and operation of multiple robots in response to a common acoustic stimulus is developed. The scaffold-free cellu-robots comprise only highly packed cells and eliminate the influence of supportive materials, making them less cumbersome during locomotion. The ring shape of the cellu-robot contributes to anisotropic cellular interactions which induce radial cellular orientation. Under a single stimulus, several cellu-robots form predetermined complex structures such as bracelet-like ring-chains which transform into a single new living entity through cell-cell interactions, migration or cellular extensions between cellu-robots.
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Affiliation(s)
- Tanchen Ren
- Bio-Acoustic MEMS in Medicine (BAMM) Laboratory, Canary Center at Stanford for Cancer Early Detection, Department of Radiology, Stanford School of Medicine, Palo Alto, CA, 94304, USA
| | - Pu Chen
- Department of Biomedical Engineering, Wuhan University School of Basic Medical Sciences, Wuhan, 430071, China
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, 430050, China
| | - Longjun Gu
- Department of Biomedical Engineering, Wuhan University School of Basic Medical Sciences, Wuhan, 430071, China
| | - Mehmet Giray Ogut
- Bio-Acoustic MEMS in Medicine (BAMM) Laboratory, Canary Center at Stanford for Cancer Early Detection, Department of Radiology, Stanford School of Medicine, Palo Alto, CA, 94304, USA
| | - Utkan Demirci
- Bio-Acoustic MEMS in Medicine (BAMM) Laboratory, Canary Center at Stanford for Cancer Early Detection, Department of Radiology, Stanford School of Medicine, Palo Alto, CA, 94304, USA
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59
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Fan Z, Liao X, Tian Y, xuzhuzi X, Nie Y. A prevascularized nerve conduit based on a stem cell sheet effectively promotes the repair of transected spinal cord injury. Acta Biomater 2020; 101:304-313. [PMID: 31678739 DOI: 10.1016/j.actbio.2019.10.042] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Revised: 10/15/2019] [Accepted: 10/29/2019] [Indexed: 12/20/2022]
Abstract
Spinal cord injury (SCI) can result in severe loss of motor and sensory function caused by ischemia and hypoxia, which are the key limiting factors of SCI rehabilitation. Vascularization is considered an effective way to resolve the issues of ischemia and hypoxia. In this regard, we first fabricated prevascularized nerve conduits (PNC) based on the prevascularized stem cell sheet and evaluated their repair effects by implanting them into transected SCI rats. A better healing effect was presented in the PNC group than in the control group and the nonprevascularized nerve conduit (NPNC) group as shown in H&E staining and the Basso, Beattie, Bresnahan (BBB) Locomotor Rating Scale assessment. In addition, the expression of β-III tubulin (Tuj-1) in the PNC group was higher than that in the control group and the NPNC group because of the introduction of MSCs. Conversely, the expression of the glial fibrillary acidic protein (GFAP) in both experimental groups was lower than that in the control group because of the inhibitory effect of MSCs on glial scar formation. Taken together, the introduction of prevascularization into the neuron conduit was an effective solution for improving the condition of ischemia and hypoxia, inhibiting glial scar formation, and promoting the healing of SCI, which implied that the PNC may be a potential alternative material to biomaterials for SCI rehabilitation. STATEMENT OF SIGNIFICANCE: 1. Prevascularized stem cell sheet was first used to repair spinal cord injury (SCI). 2. Prevascularized stem cell sheet use can effectively resolve the challenges faced during SCI, including ischemia and hypoxia and the limited regenerative ability of the remained neurons. 3. Prevascularized stem cell sheet was found to accelerate the healing of SCI as compared to those in the control group and the pure stem cell sheet group. 4. The introduction of stem cells can effectively inhibit the formation of a glial scar.
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60
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Silva AS, Santos LF, Mendes MC, Mano JF. Multi-layer pre-vascularized magnetic cell sheets for bone regeneration. Biomaterials 2019; 231:119664. [PMID: 31855623 DOI: 10.1016/j.biomaterials.2019.119664] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 11/27/2019] [Accepted: 12/01/2019] [Indexed: 12/14/2022]
Abstract
The lack of effective strategies to produce vascularized 3D bone transplants in vitro, hampers the development of thick-constructed bone, limiting the translational of lab-based engineered system to clinical practices. Cell sheet (CS) engineering techniques provide an excellent microenvironment for vascularization since the technique can maintain the intact cell matrix, crucial for angiogenesis. In an attempt to develop hierarchical vascularized 3D cellular constructs, we herein propose the construction of stratified magnetic responsive heterotypic CSs by making use of iron oxide nanoparticles previously internalized within cells. Magnetic force-based CS engineering allows for the construction of thick cellular multilayers. Results show that osteogenesis is achieved due to a synergic effect of human umbilical vein endothelial cells (HUVECs) and adipose-derived stromal cells (ASCs), even in the absence of osteogenic differentiating factors. Increased ALP activity, matrix mineralization, osteopontin and osteocalcin detection were achieved over a period of 21 days for the heterotypic CS conformation (ASCs/HUVECs/ASCs), over the homotypic one (ASCs/ASCs), corroborating our findings. Moreover, the validated crosstalk between BMP-2 and VEGF releases triggers not only the recruitment of blood vessels, as demonstrated in an in vivo CAM assay, as well as the osteogenesis of the 3D cell construct. The in vivo angiogenic profile also demonstrated preserved human vascular structures and human cells showed the ability to migrate and integrate within the chick vasculature.
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Affiliation(s)
- Ana S Silva
- Department of Chemistry, CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-193, Aveiro, Portugal.
| | - Lúcia F Santos
- Department of Chemistry, CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Maria C Mendes
- Department of Chemistry, CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-193, Aveiro, Portugal
| | - João F Mano
- Department of Chemistry, CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-193, Aveiro, Portugal.
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61
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Lee JW, Yoo HS. Michael-Type Addition of Gelatin on Electrospun Nanofibrils for Self-Assembly of Cell Sheets Composed of Human Dermal Fibroblasts. ACS OMEGA 2019; 4:18677-18684. [PMID: 31737828 PMCID: PMC6854572 DOI: 10.1021/acsomega.9b02602] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Accepted: 10/15/2019] [Indexed: 05/21/2023]
Abstract
To facilitate cell sheet formation of human dermal fibroblasts, gelatin moieties were chemically decorated onto the surface of electrospun nanofibrils (NFs). Poly(caprolactone) [PCL] was electrospun onto fibrous meshes and then fragmented into nanofibrils by optimized milling and hydrolysis. After aminolysis of the NFs, methacrylated gelatin (GelMA) was reacted via Michael-type addition with the surface-exposed amines of the aminolyzed NFs (ahPCL NFs). GelMA was immobilized on the ahPCL NFs. Analysis of ahPCL NFs and native NFs conducted using X-ray photoelectron spectroscopy confirmed that gelatin was chemically conjugated onto the NFs. Human dermal fibroblasts (HDF) and the decorated NFs were self-assembled into cell sheets, and cells in the matrix showed highly spreading morphology by confocal microscopy. Our results indicate that the degree of cell spreading and cellular viability was much higher in the presence of GelMA immobilized in ahPCL NFs.
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Affiliation(s)
- Ju Won Lee
- Department
of Biomedical Materials Engineering and Institute of Bioscience and Biotechnology, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Hyuk Sang Yoo
- Department
of Biomedical Materials Engineering and Institute of Bioscience and Biotechnology, Kangwon National University, Chuncheon 24341, Republic of Korea
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62
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Roberts EG, Kleptsyn VF, Roberts GD, Mossburg KJ, Feng B, Domian IJ, Emani SM, Wong JY. Development of a bio-MEMS device for electrical and mechanical conditioning and characterization of cell sheets for myocardial repair. Biotechnol Bioeng 2019; 116:3098-3111. [PMID: 31317531 DOI: 10.1002/bit.27123] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Revised: 05/09/2019] [Accepted: 07/09/2019] [Indexed: 12/26/2022]
Abstract
Here we propose a bio-MEMS device designed to evaluate contractile force and conduction velocity of cell sheets in response to mechanical and electrical stimulation of the cell source as it grows to form a cellular sheet. Moreover, the design allows for the incorporation of patient-specific data and cell sources. An optimized device would allow cell sheets to be cultured, characterized, and conditioned to be compatible with a specific patient's cardiac environment in vitro, before implantation. This design draws upon existing methods in the literature but makes an important advance by combining the mechanical and electrical stimulation into a single system for optimized cell sheet growth. The device has been designed to achieve cellular alignment, electrical stimulation, mechanical stimulation, conduction velocity readout, contraction force readout, and eventually cell sheet release. The platform is a set of comb electrical contacts consisting of three-dimensional walls made of polydimethylsiloxane and coated with electrically conductive metals on the tops of the walls. Not only do the walls serve as a method for stimulating cells that are attached to the top, but their geometry is tailored such that they are flexible enough to be bent by the cells and used to measure force. The platform can be stretched via a linear actuator setup, allowing for simultaneous electrical and mechanical stimulation that can be derived from patient-specific clinical data.
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Affiliation(s)
- Erin G Roberts
- Division of Materials Science and Engineering, Boston University, Boston, Massachusetts.,Department of Cardiac Surgery, Boston Children's Hospital, Boston, Massachusetts
| | - Vladimir F Kleptsyn
- Department of Electrical and Computer Engineering, Boston University, Boston, Massachusetts
| | - Gregory D Roberts
- Department of Applied Physics and Materials Science, California Institute of Technology, Pasadena, California
| | | | - Bei Feng
- Harvard Medical School, Massachusetts General Hospital, Cardiovascular Research Center, Boston, Massachusetts
| | - Ibrahim J Domian
- Harvard Medical School, Massachusetts General Hospital, Cardiovascular Research Center, Boston, Massachusetts
| | - Sitaram M Emani
- Department of Cardiac Surgery, Boston Children's Hospital, Boston, Massachusetts
| | - Joyce Y Wong
- Division of Materials Science and Engineering, Boston University, Boston, Massachusetts.,Department of Biomedical Engineering, Boston University, Boston, Massachusetts
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63
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Pederzoli F, Joice G, Salonia A, Bivalacqua TJ, Sopko NA. Regenerative and engineered options for urethroplasty. Nat Rev Urol 2019; 16:453-464. [PMID: 31171866 DOI: 10.1038/s41585-019-0198-y] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/04/2019] [Indexed: 02/07/2023]
Abstract
Surgical correction of urethral strictures by substitution urethroplasty - the use of grafts or flaps to correct the urethral narrowing - remains one of the most challenging procedures in urology and is frequently associated with complications, restenosis and poor quality of life for the affected individual. Tissue engineering using different cell types and tissue scaffolds offers a promising alternative for tissue repair and replacement. The past 30 years of tissue engineering has resulted in the development of several therapies that are now in use in the clinic, especially in treating cutaneous, bone and cartilage defects. Advances in tissue engineering for urethral replacement have resulted in several clinical applications that have shown promise but have not yet become the standard of care.
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Affiliation(s)
- Filippo Pederzoli
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy
- Department of Urology, James Buchanan Brady Urological Institute, Johns Hopkins Medical Institutions, Baltimore, MD, USA
- Università Vita-Salute San Raffaele, Milan, Italy
| | - Gregory Joice
- Department of Urology, James Buchanan Brady Urological Institute, Johns Hopkins Medical Institutions, Baltimore, MD, USA
| | - Andrea Salonia
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy
- Università Vita-Salute San Raffaele, Milan, Italy
| | - Trinity J Bivalacqua
- Department of Urology, James Buchanan Brady Urological Institute, Johns Hopkins Medical Institutions, Baltimore, MD, USA
| | - Nikolai A Sopko
- Department of Urology, James Buchanan Brady Urological Institute, Johns Hopkins Medical Institutions, Baltimore, MD, USA.
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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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Kobayashi Y, Cordonier CEJ, Noda Y, Nagase F, Enomoto J, Kageyama T, Honma H, Maruo S, Fukuda J. Tailored cell sheet engineering using microstereolithography and electrochemical cell transfer. Sci Rep 2019; 9:10415. [PMID: 31320678 PMCID: PMC6639316 DOI: 10.1038/s41598-019-46801-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Accepted: 07/07/2019] [Indexed: 02/07/2023] Open
Abstract
Postoperative adhesion and occlusion remain a serious issue associated with various surgeries, including endoscopic surgery, in which proliferated fibrous tissues stick to adjacent tissues and often cause severe complications. Cell sheet engineering has emerged as an effective approach not only for cell transplantation but also for the treatment of postoperative adhesion and occlusion. However, as the tissues in the body, such as middle ear and small intestine, and typical operative sites are non-flat and spatially complicated, tailored cell sheets with three-dimensional (3D) configurations may lead to widespread use of this approach. In the present study, we used microstereolithography, biocompatible gold plating, and electrochemical cell detachment to achieve this purpose. Various objects with dimensions ranging from millimeter- to micrometer-scale were fabricated with photocurable resin using lab-made equipment for microstereolithography. To coat the fabricated objects with a thin gold layer, conventional cyanide-based gold plating was unusable because it severely damaged almost all cells. Electroless non-cyanide gold plating we prepared was cytocompatible and suitable for electrochemical cell detachment. Cell sheets on the gold-plated substrate could be directly transplanted into a mouse intraperitoneally using electrochemical cell detachment. We further demonstrated that cell sheets grown on gold-coated 3D objects were rapidly detached along with the desorption of electroactive-oligopeptide monolayer and transferred to a surrounding hydrogel. This approach may provide a promising strategy to prepare and directly transplant tailor-made cell sheets with suitable configurations.
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Affiliation(s)
- Yuka Kobayashi
- Faculty of Engineering, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama, 240-8501, Japan
| | | | - Yohei Noda
- Faculty of Engineering, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama, 240-8501, Japan
| | - Fuminori Nagase
- Faculty of Engineering, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama, 240-8501, Japan
| | - Junko Enomoto
- Faculty of Engineering, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama, 240-8501, Japan
| | - Tatsuto Kageyama
- Faculty of Engineering, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama, 240-8501, Japan
| | - Hideo Honma
- Faculty of Engineering, Kanto Gakuin University, 1162-2 Ogikubo, Odawara, 250-0022, Japan
| | - Shoji Maruo
- Faculty of Engineering, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama, 240-8501, Japan
| | - Junji Fukuda
- Faculty of Engineering, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama, 240-8501, Japan.
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66
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Hu L, Zhao B, Gao Z, Xu J, Fan Z, Zhang C, Wang J, Wang S. Regeneration characteristics of different dental derived stem cell sheets. J Oral Rehabil 2019; 47 Suppl 1:66-72. [PMID: 31211857 DOI: 10.1111/joor.12839] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Revised: 05/29/2019] [Accepted: 06/09/2019] [Indexed: 01/05/2023]
Abstract
BACKGROUND Although cell sheets have gained much interest as a non-scaffold strategy for tissue regeneration, the regenerative features of different cell sheets remain unclear. OBJECTIVE In this study, we aimed to compare the regeneration characteristics of cell sheets derived from dental pulp stem cells (DPSCs), periodontal ligament stem cells (PDLSCs) and stem cells of the apical papilla (SCAPs). METHODS Dental pulp stem cells, PDLSCs and SCAPs from the same individual were acquired and induced to form sheets using 20 μg/mL vitamin C. Immunofluorescence staining was used to detect the expression of collagen I, fibronectin, integrin β1 and vimentin. Real-time PCR was used to determine NANOG, OCT4, SOX2 and TERT gene expression. The cell sheets with hydroxyapatite/tricalcium phosphate were transplanted into nude mice subcutaneously to evaluate tissue regeneration characteristics. RESULTS No obvious differences were found in the histological structure and extracellular matrix protein expression between DPSC, PDLSC and SCAP sheets. Dental pulp stem cell sheet showed higher expression of OCT4 and TERT than PDLSC and SCAP sheets. All three cell sheets displayed the ability of mineral tissue formation and highly expressed periostin. The tissue derived from DPSC sheet showed higher CD31 expression and porous fibres compared with that from the others. The tissue fibres formed from PDLSC sheet were directionally arranged, while the tissue derived from SCAP sheet showed highest mineral tissue formation. CONCLUSION Although in vitro DPSC, PDLSC and SCAP cell sheets have similar characteristics, their regenerative characteristics in vivo are different, with each showing potential application for regeneration of different tissues.
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Affiliation(s)
- Lei Hu
- Molecular Laboratory for Gene Therapy and Tooth Regeneration, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China.,Department of Prosthodontics, Capital Medical University School of Stomatology, Beijing, China
| | - Bin Zhao
- Molecular Laboratory for Gene Therapy and Tooth Regeneration, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China
| | - Zhenhua Gao
- Molecular Laboratory for Gene Therapy and Tooth Regeneration, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China
| | - Junji Xu
- Molecular Laboratory for Gene Therapy and Tooth Regeneration, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China
| | - Zhipeng Fan
- Laboratory of Molecular Signaling and Stem Cells Therapy, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing, China
| | - Chunmei Zhang
- Molecular Laboratory for Gene Therapy and Tooth Regeneration, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China
| | - Jinsong Wang
- Department of Biochemistry and Molecular Biology, Capital Medical University School of Basic Medical Sciences, Beijing, China
| | - Songlin Wang
- Molecular Laboratory for Gene Therapy and Tooth Regeneration, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China.,Department of Biochemistry and Molecular Biology, Capital Medical University School of Basic Medical Sciences, Beijing, China
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67
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Qasim M, Arunkumar P, Powell HM, Khan M. Current research trends and challenges in tissue engineering for mending broken hearts. Life Sci 2019; 229:233-250. [PMID: 31103607 PMCID: PMC6799998 DOI: 10.1016/j.lfs.2019.05.012] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 05/01/2019] [Accepted: 05/06/2019] [Indexed: 02/07/2023]
Abstract
Cardiovascular disease (CVD) is among the leading causes of mortality worldwide. The shortage of donor hearts to treat end-stage heart failure patients is a critical problem. An average of 3500 heart transplant surgeries are performed globally, half of these transplants are performed in the US alone. Stem cell therapy is growing rapidly as an alternative strategy to repair or replace the damaged heart tissue after a myocardial infarction (MI). Nevertheless, the relatively poor survival of the stem cells in the ischemic heart is a major challenge to the therapeutic efficacy of stem-cell transplantation. Recent advancements in tissue engineering offer novel biomaterials and innovative technologies to improve upon the survival of stem cells as well as to repair the damaged heart tissue following a myocardial infarction (MI). However, there are several limitations in tissue engineering technologies to develop a fully functional, beating cardiac tissue. Therefore, the main goal of this review article is to address the current advancements and barriers in cardiac tissue engineering to augment the survival and retention of stem cells in the ischemic heart.
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Affiliation(s)
- Muhammad Qasim
- Department of Stem Cell and Regenerative Biotechnology, Humanized Pig Research Center (SRC), Konkuk University, Seoul, Republic of Korea
| | - Pala Arunkumar
- Department of Emergency Medicine, College of Medicine, Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, United States
| | - Heather M Powell
- Department of Materials Science and Engineering, Department of Biomedical Engineering, The Ohio State University, Columbus, OH, United States; Research Department, Shriners Hospitals for Children, Cincinnati, OH, United States
| | - Mahmood Khan
- Department of Emergency Medicine, College of Medicine, Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, United States; Department of Physiology and Cell Biology, The Ohio State University Wexner Medical Center, Columbus, OH, United States.
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68
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Mobaraki M, Abbasi R, Omidian Vandchali S, Ghaffari M, Moztarzadeh F, Mozafari M. Corneal Repair and Regeneration: Current Concepts and Future Directions. Front Bioeng Biotechnol 2019; 7:135. [PMID: 31245365 PMCID: PMC6579817 DOI: 10.3389/fbioe.2019.00135] [Citation(s) in RCA: 93] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Accepted: 05/20/2019] [Indexed: 12/13/2022] Open
Abstract
The cornea is a unique tissue and the most powerful focusing element of the eye, known as a window to the eye. Infectious or non-infectious diseases might cause severe visual impairments that need medical intervention to restore patients' vision. The most prominent characteristics of the cornea are its mechanical strength and transparency, which are indeed the most important criteria considerations when reconstructing the injured cornea. Corneal strength comes from about 200 collagen lamellae which criss-cross the cornea in different directions and comprise nearly 90% of the thickness of the cornea. Regarding corneal transparency, the specific characteristics of the cornea include its immune and angiogenic privilege besides its limbus zone. On the other hand, angiogenic privilege involves several active cascades in which anti-angiogenic factors are produced to compensate for the enhanced production of proangiogenic factors after wound healing. Limbus of the cornea forms a border between the corneal and conjunctival epithelium, and its limbal stem cells (LSCs) are essential in maintenance and repair of the adult cornea through its support of corneal epithelial tissue repair and regeneration. As a result, the main factors which threaten the corneal clarity are inflammatory reactions, neovascularization, and limbal deficiency. In fact, the influx of inflammatory cells causes scar formation and destruction of the limbus zone. Current studies about wound healing treatment focus on corneal characteristics such as the immune response, angiogenesis, and cell signaling. In this review, studied topics related to wound healing and new approaches in cornea regeneration, which are mostly related to the criteria mentioned above, will be discussed.
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Affiliation(s)
- Mohammadmahdi Mobaraki
- Biomaterials Group, Department of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran
| | - Reza Abbasi
- Biomaterials Group, Department of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran
| | - Sajjad Omidian Vandchali
- Biomaterials Group, Department of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran
| | - Maryam Ghaffari
- Biomaterials Group, Department of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran
| | - Fathollah Moztarzadeh
- Biomaterials Group, Department of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran
| | - Masoud Mozafari
- Department of Tissue Engineering and Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
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Liu J, Ruan J, Weir MD, Ren K, Schneider A, Wang P, Oates TW, Chang X, Xu HHK. Periodontal Bone-Ligament-Cementum Regeneration via Scaffolds and Stem Cells. Cells 2019; 8:E537. [PMID: 31167434 PMCID: PMC6628570 DOI: 10.3390/cells8060537] [Citation(s) in RCA: 120] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 05/29/2019] [Accepted: 05/29/2019] [Indexed: 12/13/2022] Open
Abstract
Periodontitis is a prevalent infectious disease worldwide, causing the damage of periodontal support tissues, which can eventually lead to tooth loss. The goal of periodontal treatment is to control the infections and reconstruct the structure and function of periodontal tissues including cementum, periodontal ligament (PDL) fibers, and bone. The regeneration of these three types of tissues, including the re-formation of the oriented PDL fibers to be attached firmly to the new cementum and alveolar bone, remains a major challenge. This article represents the first systematic review on the cutting-edge researches on the regeneration of all three types of periodontal tissues and the simultaneous regeneration of the entire bone-PDL-cementum complex, via stem cells, bio-printing, gene therapy, and layered bio-mimetic technologies. This article primarily includes bone regeneration; PDL regeneration; cementum regeneration; endogenous cell-homing and host-mobilized stem cells; 3D bio-printing and generation of the oriented PDL fibers; gene therapy-based approaches for periodontal regeneration; regenerating the bone-PDL-cementum complex via layered materials and cells. These novel developments in stem cell technology and bioactive and bio-mimetic scaffolds are highly promising to substantially enhance the periodontal regeneration including both hard and soft tissues, with applicability to other therapies in the oral and maxillofacial region.
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Affiliation(s)
- Jin Liu
- Key Laboratory of Shannxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, 98 XiWu Road, Xi'an 710004, China.
- Clinical Research Center of Shannxi Province for Dental and Maxillofacial Diseases, College of Stomatology, Xi'an Jiaotong University, 98 XiWu Road, Xi'an 710004, China.
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland Dental School, Baltimore, MD 21201, USA.
| | - Jianping Ruan
- Key Laboratory of Shannxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, 98 XiWu Road, Xi'an 710004, China.
- Clinical Research Center of Shannxi Province for Dental and Maxillofacial Diseases, College of Stomatology, Xi'an Jiaotong University, 98 XiWu Road, Xi'an 710004, China.
| | - Michael D Weir
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland Dental School, Baltimore, MD 21201, USA.
| | - Ke Ren
- Department of Neural and Pain Sciences, School of Dentistry, & Program in Neuroscience, University of Maryland, Baltimore, MD 21201, USA.
| | - Abraham Schneider
- Department of Oncology and Diagnostic Sciences, University of Maryland School of Dentistry, Baltimore, MD 21201, USA.
- Member, Marlene and Stewart Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
| | - Ping Wang
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland Dental School, Baltimore, MD 21201, USA.
| | - Thomas W Oates
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland Dental School, Baltimore, MD 21201, USA.
| | - Xiaofeng Chang
- Key Laboratory of Shannxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, 98 XiWu Road, Xi'an 710004, China.
- Clinical Research Center of Shannxi Province for Dental and Maxillofacial Diseases, College of Stomatology, Xi'an Jiaotong University, 98 XiWu Road, Xi'an 710004, China.
| | - Hockin H K Xu
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland Dental School, Baltimore, MD 21201, USA.
- Member, Marlene and Stewart Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
- Center for Stem Cell Biology & Regenerative Medicine, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
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Ramadhan W, Kagawa G, Hamada Y, Moriyama K, Wakabayashi R, Minamihata K, Goto M, Kamiya N. Enzymatically Prepared Dual Functionalized Hydrogels with Gelatin and Heparin To Facilitate Cellular Attachment and Proliferation. ACS APPLIED BIO MATERIALS 2019; 2:2600-2609. [DOI: 10.1021/acsabm.9b00275] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Wahyu Ramadhan
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Fukuoka 819-0395, Japan
| | - Genki Kagawa
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Fukuoka 819-0395, Japan
| | - Yusei Hamada
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Fukuoka 819-0395, Japan
| | - Kousuke Moriyama
- Department of Chemical and Biological Engineering, Sasebo National College of Technology, Okishin-cho, Sasebo, Nagasaki 857−1193, Japan
| | - Rie Wakabayashi
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Fukuoka 819-0395, Japan
| | - Kosuke Minamihata
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Fukuoka 819-0395, Japan
| | - Masahiro Goto
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Fukuoka 819-0395, Japan
- Division of Biotechnology, Center for Future Chemistry, Kyushu University, 744 Motooka, Fukuoka 819-0395, Japan
| | - Noriho Kamiya
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Fukuoka 819-0395, Japan
- Division of Biotechnology, Center for Future Chemistry, Kyushu University, 744 Motooka, Fukuoka 819-0395, Japan
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Lu Y, Zhang W, Wang J, Yang G, Yin S, Tang T, Yu C, Jiang X. Recent advances in cell sheet technology for bone and cartilage regeneration: from preparation to application. Int J Oral Sci 2019; 11:17. [PMID: 31110170 PMCID: PMC6527566 DOI: 10.1038/s41368-019-0050-5] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 03/08/2019] [Accepted: 04/10/2019] [Indexed: 12/19/2022] Open
Abstract
Bone defects caused by trauma, tumour resection, infection and congenital deformities, together with articular cartilage defects and cartilage-subchondral bone complex defects caused by trauma and degenerative diseases, remain great challenges for clinicians. Novel strategies utilising cell sheet technology to enhance bone and cartilage regeneration are being developed. The cell sheet technology has shown great clinical potential in regenerative medicine due to its effective preservation of cell-cell connections and extracellular matrix and its scaffold-free nature. This review will first introduce several widely used cell sheet preparation systems, including traditional approaches and recent improvements, as well as their advantages and shortcomings. Recent advances in utilising cell sheet technology to regenerate bone or cartilage defects and bone-cartilage complex defects will be reviewed. The key challenges and future research directions for the application of cell sheet technology in bone and cartilage regeneration will also be discussed.
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Affiliation(s)
- Yuezhi Lu
- Department of Prosthodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases; Shanghai Engineering Research Center of Advanced Dental Technology and Materials; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
| | - Wenjie Zhang
- Department of Prosthodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases; Shanghai Engineering Research Center of Advanced Dental Technology and Materials; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
| | - Jie Wang
- Department of Prosthodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases; Shanghai Engineering Research Center of Advanced Dental Technology and Materials; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
| | - Guangzheng Yang
- Department of Prosthodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases; Shanghai Engineering Research Center of Advanced Dental Technology and Materials; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
| | - Shi Yin
- Department of Prosthodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases; Shanghai Engineering Research Center of Advanced Dental Technology and Materials; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
| | - Tingting Tang
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chunhua Yu
- Department of Prosthodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases; Shanghai Engineering Research Center of Advanced Dental Technology and Materials; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China.
| | - Xinquan Jiang
- Department of Prosthodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases; Shanghai Engineering Research Center of Advanced Dental Technology and Materials; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China.
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Jing J, Chen S, Lu Q. Gradient Photothermal Field for Precisely Directing Cell Sheet Detachment. ACTA ACUST UNITED AC 2019; 3:e1800334. [DOI: 10.1002/adbi.201800334] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2018] [Revised: 03/24/2019] [Indexed: 01/06/2023]
Affiliation(s)
- Jiange Jing
- School of Chemistry and Chemical EngineeringThe State Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong University Shanghai 200240 China
| | - Shuangshuang Chen
- School of Chemical Science and EngineeringTong Ji University Shanghai 200092 China
| | - Qinghua Lu
- School of Chemistry and Chemical EngineeringThe State Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong University Shanghai 200240 China
- School of Chemical Science and EngineeringTong Ji University Shanghai 200092 China
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Xu X, Li X, Wang J, He X, Sun H, Chen F. Concise Review: Periodontal Tissue Regeneration Using Stem Cells: Strategies and Translational Considerations. Stem Cells Transl Med 2019; 8:392-403. [PMID: 30585445 PMCID: PMC6431686 DOI: 10.1002/sctm.18-0181] [Citation(s) in RCA: 113] [Impact Index Per Article: 22.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Accepted: 11/22/2018] [Indexed: 12/15/2022] Open
Abstract
Periodontitis is a widespread disease characterized by inflammation-induced progressive damage to the tooth-supporting structures until tooth loss occurs. The regeneration of lost/damaged support tissue in the periodontium, including the alveolar bone, periodontal ligament, and cementum, is an ambitious purpose of periodontal regenerative therapy and might effectively reduce periodontitis-caused tooth loss. The use of stem cells for periodontal regeneration is a hot field in translational research and an emerging potential treatment for periodontitis. This concise review summarizes the regenerative approaches using either culture-expanded or host-mobilized stem cells that are currently being investigated in the laboratory and with preclinical models for periodontal tissue regeneration and highlights the most recent evidence supporting their translational potential toward a widespread use in the clinic for combating highly prevalent periodontal disease. We conclude that in addition to in vitro cell-biomaterial design and transplantation, the engineering of biomaterial devices to encourage the innate regenerative capabilities of the periodontium warrants further investigation. In comparison to cell-based therapies, the use of biomaterials is comparatively simple and sufficiently reliable to support high levels of endogenous tissue regeneration. Thus, endogenous regenerative technology is a more economical and effective as well as safer method for the treatment of clinical patients. Stem Cells Translational Medicine 2019;8:392-403.
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Affiliation(s)
- Xin‐Yue Xu
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases and Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Periodontology, School of StomatologyFourth Military Medical UniversityXi'anPeople's Republic of China
| | - Xuan Li
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases and Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Periodontology, School of StomatologyFourth Military Medical UniversityXi'anPeople's Republic of China
| | - Jia Wang
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases and Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Periodontology, School of StomatologyFourth Military Medical UniversityXi'anPeople's Republic of China
| | - Xiao‐Tao He
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases and Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Periodontology, School of StomatologyFourth Military Medical UniversityXi'anPeople's Republic of China
| | - Hai‐Hua Sun
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases and Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Periodontology, School of StomatologyFourth Military Medical UniversityXi'anPeople's Republic of China
| | - Fa‐Ming Chen
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases and Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Periodontology, School of StomatologyFourth Military Medical UniversityXi'anPeople's Republic of China
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Abstract
The very small embryonic-like stem cells (VSELs) are known as a subset of adult pluripotent stem cells able to differentiate to all three germ layers. However, their small number and quiescence restrict the possibility of their use in cell therapy. In the present study, we first delineate different subpopulation of VSELs from human cord blood CD34+ cells to define their purity. We next determine genes expression levels in the whole transcriptome of VSELs expressing the pluripotent marker NANOG and control cells under the steady state condition. We found that more than a thousand of genes are downregulated in VSELs, as well as many membrane receptors, cells signaling molecules and CDKs mRNAs. In addition, we observed discordance in some pluripotent genes expression levels with embryonic stem cells (ESCs), which could explain VSELs quiescence. We then evaluate VSELs capacity to expand and differentiate in vitro in specific and appropriate media. After 12 days culture in specific medium containing a pyrimidoindole derivative (UM171), VSELs were significantly expanded for the first time without feeder cells and importantly preserve their capacities to differentiate into hematopoietic and endothelial cells. Interestingly, this stimulation of VSELs self-renewal restores the expression of some downregulated genes known as key regulators of cell proliferation and differentiation. The properties of such pluripotent expanded cells make them a potential candidate in regenerative medicine.
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75
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Oliva J, Florentino A, Bardag-Gorce F, Niihara Y. Engineering, differentiation and harvesting of human adipose-derived stem cell multilayer cell sheets. Regen Med 2019; 14:151-163. [PMID: 30829557 DOI: 10.2217/rme-2018-0053] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Aim: The study goals were to engineer and harvest scaffold-free undifferentiated/differentiated multilayer human adipose-derived stem cell (hADSC) cell sheets, in absence of treatment. Materials & methods: The hADSC are seeded in 35 mm culture dishes. At confluence or when multilayer cell sheets are formed, hADSC are treated with predefined differentiation culture media (adipocyte, chondrocyte and osteoblast). Results: Undifferentiated hADSC and differentiated adipocyte, osteoblast and chondrocyte hADSC multilayer cell sheets (hADSCmCS) have been harvested. Hematoxylin & eosin showed the formation of multilayer cell sheets. Undifferentiated hADSC multilayer cell sheets preserve their stem cell markers. Differentiated adipocyte, osteoblast and chondrocyte hADSCmCS expressed specific markers. Conclusion: This simple protocol opens possibilities to engineer scaffold-free hADSCm cell sheet to transplant them on damaged organs.
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Affiliation(s)
- Joan Oliva
- Department of Medicine, LA BioMed at Harbor UCLA Medical Center, Torrance, CA 90502, USA.,Emmaus Life Sciences, Inc., 21250 Hawthorne Blvd., Suite 800, Torrance, CA 90503, USA
| | - Arjie Florentino
- Department of Medicine, LA BioMed at Harbor UCLA Medical Center, Torrance, CA 90502, USA
| | - Fawzia Bardag-Gorce
- Department of Medicine, LA BioMed at Harbor UCLA Medical Center, Torrance, CA 90502, USA
| | - Yutaka Niihara
- Department of Medicine, LA BioMed at Harbor UCLA Medical Center, Torrance, CA 90502, USA.,Emmaus Life Sciences, Inc., 21250 Hawthorne Blvd., Suite 800, Torrance, CA 90503, USA
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76
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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: 59] [Impact Index Per Article: 11.8] [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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77
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Cell sheet technology: a promising strategy in regenerative medicine. Cytotherapy 2019; 21:3-16. [DOI: 10.1016/j.jcyt.2018.10.013] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Revised: 09/30/2018] [Accepted: 10/24/2018] [Indexed: 12/31/2022]
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78
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Amani H, Mostafavi E, Arzaghi H, Davaran S, Akbarzadeh A, Akhavan O, Pazoki-Toroudi H, Webster TJ. Three-Dimensional Graphene Foams: Synthesis, Properties, Biocompatibility, Biodegradability, and Applications in Tissue Engineering. ACS Biomater Sci Eng 2018; 5:193-214. [PMID: 33405863 DOI: 10.1021/acsbiomaterials.8b00658] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Presently, clinical nanomedicine and nanobiotechnology have impressively demanded the generation of new organic/inorganic analogues of graphene (as one of the intriguing biomedical research targets) for stem-cell-based tissue engineering. Among different shapes of graphene, three-dimensional (3D) graphene foams (GFs) are highly promising candidates to provide conditions for mimicking in vivo environments, affording effective cell attachment, proliferation,and differentiation due to their unique properties. These include the highest biocompatibility among nanostructures, high surface-to-volume ratio, 3D porous structure (to provide a homogeneous/isotropic growth of tissues), highly favorable mechanical characteristics, and rapid mass and electron transport kinetics (which are required for chemical/physical stimulation of differentiated cells). This review aims to describe recent and rapid advances in the fabrication of 3D GFs, together with their use in tissue engineering and regenerative nanomedicine applications. Moreover, we have summarized a broad range of recent studies about the behaviors, biocompatibility/toxicity,and biodegradability of these materials, both in vitro and in vivo. Finally, the highlights and challenges of these 3D porous structures, compared to the current polymeric scaffold competitors, are discussed.
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Affiliation(s)
| | - Ebrahim Mostafavi
- Department of Chemical Engineering, Northeastern University, 360 Huntington Avenue, Boston, Massachusetts 02115, United States
| | | | | | | | | | | | - Thomas J Webster
- Department of Chemical Engineering, Northeastern University, 360 Huntington Avenue, Boston, Massachusetts 02115, United States
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79
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Epidermal Cell Sheet Transplantation on an Anastomotic Site of the Small Intestine in an Experimental Animal Model. Int Surg 2018. [DOI: 10.9738/intsurg-d-18-00008.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Objective:
The present study was performed to examine the effects of anastomotic site tissue reconstruction by transplantation of epidermal cell sheets onto the small intestine in an animal model. Cell sheet engineering using cell sheets are used to construct monolayers and bilayers, which are then transplanted into organs. Clinical trials of the application of cell sheets to the cornea, esophagus, lung, and heart muscle are currently underway.
Methods:
The small intestine in female pig (20 kg) was cut 1.5 cm vertically at 6 points at 10-cm intervals, and Gambee sutures were applied at 5-mm intervals. The suture line was covered by epidermal cell sheets. Resection was performed 1 week after the operation.
Results:
Cell sheets applied to sutures in the small intestine survived and differentiated 1 week after transplantation. The small intestine showed marked thickening in the region of cell sheet transplantation, and the amount of connective tissue in the transplanted specimens was 2.54 times that in controls.
Conclusions:
Further studies are necessary to identify the strength of anastomosis and substances that may enhance collagen synthesis and healing at sites of anastomosis.
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80
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Tu C, Xiao Y, Ma Y, Wu H, Song M. The legacy effects of electromagnetic fields on bone marrow mesenchymal stem cell self-renewal and multiple differentiation potential. Stem Cell Res Ther 2018; 9:215. [PMID: 30092831 PMCID: PMC6085613 DOI: 10.1186/s13287-018-0955-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 06/28/2018] [Accepted: 07/10/2018] [Indexed: 02/08/2023] Open
Abstract
Background The effects of electromagnetic fields (EMF) on bone nonunion have been reported for many years. Many studies and randomized controlled trials have demonstrated that EMF exhibited benefits in curing delayed union and nonunion of long bone fractures. Most of them focused on the immediate effects, while the legacy effects of EMF remain poorly investigated. Methods In this study, rat bone marrow mesenchymal stem cells (BMSCs) were treated with EMF, and after a period of time the BMSC proliferation and differentiation were detected. Additionally, BMSC sheets with or without EMF treatment were transplanted into the rat tibia fracture nonunion models. The bone formation was evaluated after 2, 4, and 6 weeks. Results Our results showed that the proliferation capacity of BMSCs was heightened after EMF pretreatment. Over a period of time of EMF pretreatment, the capacities of osteogenic and chondrogenic differentiation were enhanced, while adipogenic differentiation was weakened. BMSC sheets pretreated with EMF could better promote the healing of tibia fracture in rats, compared to BMSC sheets alone. Furthermore, significantly higher values of radiographic grading scores were observed in the EMF group. Conclusions EMF has lasting effects on the proliferation and differentiation of BMSCs, and together with cell sheet technology can provide a new method for the treatment of fracture nonunion.
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Affiliation(s)
- Chang Tu
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Yifan Xiao
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Yongzhuang Ma
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Hua Wu
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China.
| | - Mingyu Song
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China.
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81
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Grebenik EA, Grinchenko VD, Churbanov SN, Minaev NV, Shavkuta BS, Melnikov PA, Butnaru DV, Rochev YA, Bagratashvili VN, Timashev PS. Osteoinducing scaffolds with multi-layered biointerface. ACTA ACUST UNITED AC 2018; 13:054103. [PMID: 29761787 DOI: 10.1088/1748-605x/aac4cb] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
This study was aimed to design and characterise hybrid tissue-engineered constructs composed of osteoinducing polylactide-based scaffolds with multi-layered cellular biointerface for bone tissue reconstruction. Three-dimensional scaffolds with improved hydrophilic and osteoinducing properties were produced using the surface-selective laser sintering (SSLS) method. The designed scaffold pattern had dimensions of 8 × 8 × 2.5 mm and ladder-like pores (∼700 μm in width). Hyaluronic acid-coated polylactide microparticles (∼100 μm in diameter) were used as building blocks and water was used as the photosensitizer for SSLS followed by photocross-linking with Irgacure 2959 photoinitiator. Resulting scaffolds provided successful adhesion and expansion of human bone marrow mesenchymal stromal cells from a single-cell suspension. Induced calcium deposition by the cells associated with osteogenic differentiation was detected in 7-21 days of culturing in basal medium. The values were up to 60% higher on scaffolds produced at a higher prototyping speed under the experimental conditions. Innovative approach to graft the scaffolds with multi-layered cell sheets was proposed aiming to facilitate host tissue-implant integration. The sheets of murine MS-5 stromal cell line exhibited contiguous morphology and high viability in a modelled construct. Thus, the SSLS method proved to be effective in designing osteoinducing scaffolds suitable for the delivery of cell sheets.
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Affiliation(s)
- E A Grebenik
- Institute for Regenerative Medicine, Sechenov First Moscow State Medical University, 8-2 Trubetskaya st., Moscow, 119991, Russia
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82
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Sasaki D, Matsuura K, Seta H, Haraguchi Y, Okano T, Shimizu T. Contractile force measurement of human induced pluripotent stem cell-derived cardiac cell sheet-tissue. PLoS One 2018; 13:e0198026. [PMID: 29791489 PMCID: PMC5965888 DOI: 10.1371/journal.pone.0198026] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2018] [Accepted: 05/11/2018] [Indexed: 12/21/2022] Open
Abstract
We have developed our original tissue engineering technology “cell sheet engineering” utilizing temperature-responsive culture dishes. The cells are confluently grown on a temperature-responsive culture dish and can be harvested as a cell sheet by lowering temperature without enzymatic digestion. Cell sheets are high-cell-density tissues similar to actual living tissues, maintaining their structure and function. Based on this “cell sheet engineering”, we are trying to create functional cardiac tissues from human induced pluripotent stem cells, for regenerative therapy and in vitro drug testing. Toward this purpose, it is necessary to evaluate the contractility of engineered cardiac cell sheets. Therefore, in the present study, we developed a contractile force measurement system and evaluated the contractility of human iPSC-derived cardiac cell sheet-tissues. By attaching the cardiac cell sheets on fibrin gel sheets, we created dynamically beating cardiac cell sheet-tissues. They were mounted to the force measurement system and the contractile force was measured stably and clearly. The absolute values of contractile force were around 1 mN, and the mean force value per cross-sectional area was 3.3 mN/mm2. These values are equivalent to or larger than many previously reported values, indicating the functionality of our engineered cardiac cell sheets. We also confirmed that both the contractile force and beating rate were significantly increased by the administration of adrenaline, which are the physiologically relevant responses for cardiac tissues. In conclusion, the force measurement system developed in the present study is valuable for the evaluation of engineered cardiac cell sheet-tissues, and for in vitro drug testing as well.
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Affiliation(s)
- Daisuke Sasaki
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women’s Medical University, Tokyo, Japan
| | - Katsuhisa Matsuura
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women’s Medical University, Tokyo, Japan
| | - Hiroyoshi Seta
- Department of Cardiovascular Surgery, Tokyo Women’s Medical University, Tokyo, Japan
| | - Yuji Haraguchi
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women’s Medical University, Tokyo, Japan
| | - Teruo Okano
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women’s Medical University, Tokyo, Japan
| | - Tatsuya Shimizu
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women’s Medical University, Tokyo, Japan
- * E-mail:
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83
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Coppola V, Ventre M, Natale CF, Rescigno F, Netti PA. On the influence of surface patterning on tissue self-assembly and mechanics. J Tissue Eng Regen Med 2018; 12:1621-1633. [PMID: 29704321 DOI: 10.1002/term.2688] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Revised: 02/12/2018] [Accepted: 04/12/2018] [Indexed: 12/21/2022]
Abstract
Extracellular matrix assembly and composition influence the biological and mechanical functions of tissues. Developing strategies to control the spatial arrangement of cells and matrix is of central importance for tissue engineering-related approaches relying on self-assembling and scaffoldless processes. Literature reports demonstrated that signals patterned on material surfaces are able to control cell positioning and matrix orientation. However, the mechanisms underlying the interactions between material signals and the structure of the de novo synthesized matrix are far from being thoroughly understood. In this work, we investigated the ordering effect provided by nanoscale topographic patterns on the assembly of tissue sheets grown in vitro. We stimulated MC3T3-E1 preosteoblasts to produce and assemble a collagen-rich matrix on substrates displaying patterns with long- or short-range order. Then, we investigated microstructural features and mechanical properties of the tissue in uniaxial tension. Our results demonstrate that patterned material surfaces are able to control the initial organization of cells in close contact to the surface; then cell-generated contractile forces profoundly remodel tissue structure towards mechanically stable spatial patterns. Such a remodelling effect acts both locally, as it affects cell and nuclear shape and globally, by affecting the gross mechanical response of the tissue. Such an aspect of dynamic interplay between cells and the surrounding matrix must be taken into account when designing material platform for the in vitro generation of tissue with specific microstructural assemblies.
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Affiliation(s)
- Valerio Coppola
- Department of Chemical, Materials and Industrial Production Engineering and Interdisciplinary Research Centre on Biomaterials, University of Naples Federico II, Naples, Italy.,Center for Advanced Biomaterials for Healthcare IIT@CRIB, Istituto Italiano di Tecnologia, Naples, Italy
| | - Maurizio Ventre
- Department of Chemical, Materials and Industrial Production Engineering and Interdisciplinary Research Centre on Biomaterials, University of Naples Federico II, Naples, Italy.,Center for Advanced Biomaterials for Healthcare IIT@CRIB, Istituto Italiano di Tecnologia, Naples, Italy
| | - Carlo F Natale
- Hydrodynamics Laboratory (LadHyX), CNRS UMR7646, École Polytechnique, Palaiseau Cedex, France
| | - Francesca Rescigno
- Department of Chemical, Materials and Industrial Production Engineering and Interdisciplinary Research Centre on Biomaterials, University of Naples Federico II, Naples, Italy.,Center for Advanced Biomaterials for Healthcare IIT@CRIB, Istituto Italiano di Tecnologia, Naples, Italy
| | - Paolo A Netti
- Department of Chemical, Materials and Industrial Production Engineering and Interdisciplinary Research Centre on Biomaterials, University of Naples Federico II, Naples, Italy.,Center for Advanced Biomaterials for Healthcare IIT@CRIB, Istituto Italiano di Tecnologia, Naples, Italy
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84
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Moroni L, Burdick JA, Highley C, Lee SJ, Morimoto Y, Takeuchi S, Yoo JJ. Biofabrication strategies for 3D in vitro models and regenerative medicine. NATURE REVIEWS. MATERIALS 2018; 3:21-37. [PMID: 31223488 PMCID: PMC6586020 DOI: 10.1038/s41578-018-0006-y] [Citation(s) in RCA: 384] [Impact Index Per Article: 64.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Organs are complex systems composed of different cells, proteins and signalling molecules that are arranged in a highly ordered structure to orchestrate a myriad of functions in our body. Biofabrication strategies can be applied to engineer 3D tissue models in vitro by mimicking the structure and function of native tissue through the precise deposition and assembly of materials and cells. This approach allows the spatiotemporal control over cell-cell and cell-extracellular matrix communication and thus the recreation of tissue-like structures. In this Review, we examine biofabrication strategies for the construction of functional tissue replacements and organ models, focusing on the development of biomaterials, such as supramolecular and photosensitive materials, that can be processed using biofabrication techniques. We highlight bioprinted and bioassembled tissue models and survey biofabrication techniques for their potential to recreate complex tissue properties, such as shape, vasculature and specific functionalities. Finally, we discuss challenges, such as scalability and the foreign body response, and opportunities in the field and provide an outlook to the future of biofabrication in regenerative medicine.
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Affiliation(s)
- Lorenzo Moroni
- MERLN Institute for Technology-Inspired Regenerative Medicine, Department of Complex Tissue Regeneration, Maastricht University, Maastricht, Netherlands
| | - Jason A. Burdick
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA
| | - Christopher Highley
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA
| | - Sang Jin Lee
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Yuya Morimoto
- Institute of Industrial Science, University of Tokyo, Tokyo, Japan
| | - Shoji Takeuchi
- Institute of Industrial Science, University of Tokyo, Tokyo, Japan
| | - James J. Yoo
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, NC, USA
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85
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Yang Y, Lin H, Shen H, Wang B, Lei G, Tuan RS. Mesenchymal stem cell-derived extracellular matrix enhances chondrogenic phenotype of and cartilage formation by encapsulated chondrocytes in vitro and in vivo. Acta Biomater 2018; 69:71-82. [PMID: 29317369 DOI: 10.1016/j.actbio.2017.12.043] [Citation(s) in RCA: 95] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2017] [Revised: 12/27/2017] [Accepted: 12/29/2017] [Indexed: 01/24/2023]
Abstract
Mesenchymal stem cell derived extracellular matrix (MSC-ECM) is a natural biomaterial with robust bioactivity and good biocompatibility, and has been studied as a scaffold for tissue engineering. In this investigation, we tested the applicability of using decellularized human bone marrow derived MSC-ECM (hBMSC-ECM) as a culture substrate for chondrocyte expansion in vitro, as well as a scaffold for chondrocyte-based cartilage repair. hBMSC-ECM deposited by hBMSCs cultured on tissue culture plastic (TCP) was harvested, and then subjected to a decellularization process to remove hBMSCs. Compared with chondrocytes grown on TCP, chondrocytes seeded onto hBMSC-ECM exhibited significantly increased proliferation rate, and maintained better chondrocytic phenotype than TCP group. After being expanded to the same cell number and placed in high-density micromass cultures, chondrocytes from the ECM group showed better chondrogenic differentiation profile than those from the TCP group. To test cartilage formation ability, composites of hBMSC-ECM impregnated with chondrocytes were subjected to brief trypsin treatment to allow cell-mediated contraction, and folded to form 3-dimensional chondrocyte-impregnated hBMSC-ECM (Cell/ECM constructs). Upon culture in vitro in chondrogenic medium for 21 days, robust cartilage formation was observed in the Cell/ECM constructs. Similarly prepared Cell/ECM constructs were tested in vivo by subcutaneous implantation into SCID mice. Prominent cartilage formation was observed in the implanted Cell/ECM constructs 14 days post-implantation, with higher sGAG deposition compared to controls consisting of chondrocyte cell sheets. Taken together, these findings demonstrate that hBMSC-ECM is a superior culture substrate for chondrocyte expansion and a bioactive matrix potentially applicable for cartilage regeneration in vivo. STATEMENT OF SIGNIFICANCE Current cell-based treatments for focal cartilage defects face challenges, including chondrocyte dedifferentiation, need for xenogenic scaffolds, and suboptimal cartilage formation. We present here a novel technique that utilizes adult stem cell-derived extracellular matrix, as a culture substrate and/or encapsulation scaffold for human adult chondrocytes, for the repair of cartilage defects. Chondrocytes cultured in stem cell-derived matrix showed higher proliferation, better chondrocytic phenotype, and improved redifferentiation ability upon in vitro culture expansion. Most importantly, 3-dimensional constructs formed from chondrocytes folded within stem cell matrix manifested excellent cartilage formation both in vitro and in vivo. These findings demonstrate the suitability of stem cell-derived extracellular matrix as a culture substrate for chondrocyte expansion as well as a candidate bioactive matrix for cartilage regeneration.
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Affiliation(s)
- Yuanheng Yang
- Department of Orthopaedic Surgery, Xiangya hospital, Central South University, Changsha, Hunan, China; Center for Cellular and Molecular Engineering, Department of Orthopaedic Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA; The Third Xiangya hospital, Central South University, Changsha, Hunan, China
| | - Hang Lin
- Center for Cellular and Molecular Engineering, Department of Orthopaedic Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - He Shen
- Center for Cellular and Molecular Engineering, Department of Orthopaedic Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA; Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, Suzhou, Jiangsu, China
| | - Bing Wang
- Center for Cellular and Molecular Engineering, Department of Orthopaedic Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Guanghua Lei
- Department of Orthopaedic Surgery, Xiangya hospital, Central South University, Changsha, Hunan, China.
| | - Rocky S Tuan
- Center for Cellular and Molecular Engineering, Department of Orthopaedic Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
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86
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Gökçinar-Yagci B, Yersal N, Korkusuz P, Çelebi-Saltik B. Generation of human umbilical cord vein CD146+ perivascular cell origined three-dimensional vascular construct. Microvasc Res 2018; 118:101-112. [PMID: 29550275 DOI: 10.1016/j.mvr.2018.03.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Revised: 03/13/2018] [Accepted: 03/13/2018] [Indexed: 12/15/2022]
Abstract
Small-diameter vascular grafts are needed for the treatment of coronary artery diseases in the case of limited accessibility of the autologous vessels. Synthetic scaffolds have many disadvantages so in recent years vascular constructs (VCs) made from cellularized natural scaffolds was seen to be very promising but number of studies comprising this area is very limited. In our study, our aim is to generate fully natural triple-layered VC that constitutes all the layers of blood vessel with vascular cells. CD146+ perivascular cells (PCs) were isolated from human umbilical cord vein (HUCV) and differentiated into smooth muscle cells (SMCs) and fibroblasts. They were then combined with collagen type I/elastin/dermatan sulfate and collagen type I/fibrin to form tunica media and tunica adventitia respectively. HUCV endothelial cells (ECs) were seeded on the construct by cell sheet engineering method after fibronectin and heparin coating. Characterization of the VC was performed by immunolabeling, histochemical staining and electron microscopy (SEM and TEM). Differentiated cells were identified by means of immunofluorescent (IF) labeling. SEM and TEM analysis of VCs revealed the presence of three histologic tunicae. Collagen and elastic fibers were observed within the ECM by histochemical staining. The vascular endothelial growth factor receptor expressing ECs in tunica intima; α-SMA expressing SMCs in tunica media and; the tenascin expressing fibroblasts in tunica adventitia were detected by IF labeling. In conclusion, by combining natural scaffolds and vascular cells differentiated from CD146+ PCs, VCs can be generated layer by layer. This study will provide a preliminary blood vessel model for generation of fully natural small-diameter vascular grafts.
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Affiliation(s)
- Beyza Gökçinar-Yagci
- Department of Stem Cell Sciences, Hacettepe University Graduate School of Health Sciences, 06100, Sihhiye, Ankara, Turkey; Center for Stem Cell Research and Development, Hacettepe University, 06100, Sihhiye, Ankara, Turkey
| | - Nilgün Yersal
- Department of Histology and Embryology, Hacettepe University, Faculty of Medicine, 06100, Sihhiye, Ankara, Turkey
| | - Petek Korkusuz
- Department of Histology and Embryology, Hacettepe University, Faculty of Medicine, 06100, Sihhiye, Ankara, Turkey
| | - Betül Çelebi-Saltik
- Department of Stem Cell Sciences, Hacettepe University Graduate School of Health Sciences, 06100, Sihhiye, Ankara, Turkey; Center for Stem Cell Research and Development, Hacettepe University, 06100, Sihhiye, Ankara, Turkey.
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87
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Abstract
Biofabrication of tissue analogues is aspiring to become a disruptive technology capable to solve standing biomedical problems, from generation of improved tissue models for drug testing to alleviation of the shortage of organs for transplantation. Arguably, the most powerful tool of this revolution is bioprinting, understood as the assembling of cells with biomaterials in three‐dimensional structures. It is less appreciated, however, that bioprinting is not a uniform methodology, but comprises a variety of approaches. These can be broadly classified in two categories, based on the use or not of supporting biomaterials (known as “scaffolds,” usually printable hydrogels also called “bioinks”). Importantly, several limitations of scaffold‐dependent bioprinting can be avoided by the “scaffold‐free” methods. In this overview, we comparatively present these approaches and highlight the rapidly evolving scaffold‐free bioprinting, as applied to cardiovascular tissue engineering.
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Affiliation(s)
- Nicanor I Moldovan
- Departments of Biomedical Engineering and Ophthalmology, 3D Bioprinting Core, Indiana University-Purdue University Indianapolis, Indianapolis, IN, USA
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88
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Kawecki F, Clafshenkel WP, Fortin M, Auger FA, Fradette J. Biomimetic Tissue-Engineered Bone Substitutes for Maxillofacial and Craniofacial Repair: The Potential of Cell Sheet Technologies. Adv Healthc Mater 2018; 7:e1700919. [PMID: 29280323 DOI: 10.1002/adhm.201700919] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 10/02/2017] [Indexed: 12/21/2022]
Abstract
Maxillofacial defects are complex lesions stemming from various etiologies: accidental, congenital, pathological, or surgical. A bone graft may be required when the normal regenerative capacity of the bone is exceeded or insufficient. Surgeons have many options available for bone grafting including the "gold standard" autologous bone graft. However, this approach is not without drawbacks such as the morbidity associated with harvesting bone from a donor site, pain, infection, or a poor quantity and quality of bone in some patient populations. This review discusses the various bone graft substitutes used for maxillofacial and craniofacial repair: allografts, xenografts, synthetic biomaterials, and tissue-engineered substitutes. A brief overview of bone tissue engineering evolution including the use of mesenchymal stem cells is exposed, highlighting the first clinical applications of adipose-derived stem/stromal cells in craniofacial reconstruction. The importance of prevascularization strategies for bone tissue engineering is also discussed, with an emphasis on recent work describing substitutes produced using cell sheet-based technologies, including the use of thermo-responsive plates and the self-assembly approach of tissue engineering. Indeed, considering their entirely cell-based design, these natural bone-like substitutes have the potential to closely mimic the osteogenicity, osteoconductivity, osteoinduction, and osseointegration properties of autogenous bone for maxillofacial and craniofacial reconstruction.
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Affiliation(s)
- Fabien Kawecki
- Centre de recherche en organogénèse expérimentale de l'Université Laval/LOEX Division of Regenerative Medicine CHU de Québec Research Center‐Université Laval Québec QC G1J 1Z4 Canada
- Department of Surgery Faculty of Medicine Université Laval Québec QC G1V 0A6 Canada
| | - William P. Clafshenkel
- Centre de recherche en organogénèse expérimentale de l'Université Laval/LOEX Division of Regenerative Medicine CHU de Québec Research Center‐Université Laval Québec QC G1J 1Z4 Canada
- Department of Surgery Faculty of Medicine Université Laval Québec QC G1V 0A6 Canada
| | - Michel Fortin
- Centre de recherche en organogénèse expérimentale de l'Université Laval/LOEX Division of Regenerative Medicine CHU de Québec Research Center‐Université Laval Québec QC G1J 1Z4 Canada
- Department of Oral and Maxillofacial Surgery Faculty of Dentistry Université Laval Québec QC G1V 0A6 Canada
| | - François A. Auger
- Centre de recherche en organogénèse expérimentale de l'Université Laval/LOEX Division of Regenerative Medicine CHU de Québec Research Center‐Université Laval Québec QC G1J 1Z4 Canada
- Department of Surgery Faculty of Medicine Université Laval Québec QC G1V 0A6 Canada
| | - Julie Fradette
- Centre de recherche en organogénèse expérimentale de l'Université Laval/LOEX Division of Regenerative Medicine CHU de Québec Research Center‐Université Laval Québec QC G1J 1Z4 Canada
- Department of Surgery Faculty of Medicine Université Laval Québec QC G1V 0A6 Canada
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89
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Abstract
Numerous methods have been reported for the fabrication of 3D multi-cellular spheroids and their use in stem cell culture. Current methods typically relying on the self-assembly of trypsinized, suspended stem cells, however, show limitations with respect to cell viability, throughput, and accurate recapitulation of the natural microenvironment. In this study, we developed a new system for engineering cell spheroids by self-assembly of micro-scale monolayer of stem cells. We prepared synthetic hydrogels with the surface of chemically formed micropatterns (squares/circles with width/diameter of 200 μm) on which mesenchymal stem cells isolated from human nasal turbinate tissue (hTMSCs) were selectively attached and formed a monolayer. The hydrogel is capable of thermally controlled expansion. As the temperature was decreased from 37 to 4 °C, the cell layer detached rapidly (<10 min) and assembled to form spheroids with consistent size (∼100 μm) and high viability (>90%). Spheroidization was significantly delayed and occurred with reduced efficiency on circle patterns compared to square patterns. Multi-physics mapping supported that delamination of the micro-scale monolayer may be affected by stress concentrated at the corners of the square pattern. In contrast, stress was distributed symmetrically along the boundary of the circle pattern. In addition, treatment of the micro-scale monolayer with a ROCK inhibitor significantly retarded spheroidization, highlighting the importance of contraction mediated by actin stress fibers for the stable generation of spheroidal stem cell structures. Spheroids prepared from the assembly of monolayers showed higher expression, both on the mRNA and protein levels, of ECM proteins (fibronectin and laminin) and stemness markers (Oct4, Sox2, and Nanog) compared to spheroids prepared from low-attachment plates, in which trypsinized single cells are assembled. The hTMSC spheroids also presented enhanced expression levels of markers related to tri-lineage (osteogenic, chondrogenic and adipogenic) differentiation. The changes in microcellular environments and functionalities were double-confirmed by using adipose derived mesenchymal stem cells (ADSCs). This spheroid engineering technique may have versatile applications in regenerative medicine for functionally improved 3D culture and therapeutic cell delivery.
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90
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The Synergy of Scaffold-Based and Scaffold-Free Tissue Engineering Strategies. Trends Biotechnol 2018; 36:348-357. [PMID: 29475621 DOI: 10.1016/j.tibtech.2018.01.005] [Citation(s) in RCA: 173] [Impact Index Per Article: 28.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2017] [Revised: 11/24/2017] [Accepted: 01/11/2018] [Indexed: 02/07/2023]
Abstract
Tissue engineering (TE) is a highly interdisciplinary research field driven by the goal to restore, replace, or regenerate defective tissues. Throughout more than two decades of intense research, different technological approaches, which can be principally categorized into scaffold-based and scaffold-free strategies, have been developed. In this opinion article, we discuss the emergence of a third strategy in TE. This synergetic strategy integrates the advantages of both of these traditional approaches, while being clearly distinct from them. Its characteristic attributes, numerous practical benefits, and recent literature reports supporting our opinion, are discussed in detail.
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91
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Kirby GT, Michelmore A, Smith LE, Whittle JD, Short RD. Cell sheets in cell therapies. Cytotherapy 2018; 20:169-180. [DOI: 10.1016/j.jcyt.2017.11.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Revised: 09/28/2017] [Accepted: 11/03/2017] [Indexed: 12/21/2022]
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92
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Sudo Y, Kawai R, Sakai H, Kikuchi R, Nabae Y, Hayakawa T, Kakimoto MA. Star-Shaped Thermoresponsive Polymers with Various Functional Groups for Cell Sheet Engineering. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:653-662. [PMID: 29257892 DOI: 10.1021/acs.langmuir.7b04213] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
This study demonstrates the facile preparation of poly(N-isopropylacrylamide) (PNIPAM)-immobilized Petri dishes by drop-casting a star-shaped copolymer of hyperbranched polystyrene (HBPS) possessing PNIPAM arms (HBPS-g-PNIPAM) functionalized with polar groups. HBPS was synthesized via reversible addition-fragmentation chain transfer (RAFT) self-condensing vinyl polymerization (SCVP), and HBPS polymers with different terminal structures were prepared by changing the monomer structure. HBPS-g-PNIPAM was synthesized by the grafting of PNIPAM from each terminal of HBPS. To tune the cell adhesion and detachment properties, polar functional groups such as carboxylic acid and dimethylamino groups were introduced to HBPS-g-PNIPAM. Based on surface characterization using scanning transmission electron microscopy (STEM), X-ray photoelectron spectroscopy (XPS), and contact angle measurements, the advantage of the hyperbranched structure for the PNIPAM immobilization was evident in terms of the uniformity, stability, and thermoresponsiveness. Successful cell sheet harvesting was demonstrated on dishes coated with HBPS-g-PNIPAM. In addition, the cell adhesion and detachment properties could be tuned by the introduction of polar functional groups.
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Affiliation(s)
- Yu Sudo
- Department of Materials Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology , 2-12-1 S8-26, Ookayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Ryuki Kawai
- Department of Materials Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology , 2-12-1 S8-26, Ookayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Hideaki Sakai
- Zellech Inc. , Studio3 10F, KFC-Bldg., 1-6-1, Yokoami, Sumida-ku, Tokyo 130-0015, Japan
| | - Ryohei Kikuchi
- Ookayama Materials Analysis Division, Technical Department, Tokyo Institute of Technology , 2-12-1 S7-26, Ookayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Yuta Nabae
- Department of Materials Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology , 2-12-1 S8-26, Ookayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Teruaki Hayakawa
- Department of Materials Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology , 2-12-1 S8-26, Ookayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Masa-Aki Kakimoto
- Department of Materials Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology , 2-12-1 S8-26, Ookayama, Meguro-ku, Tokyo 152-8552, Japan
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93
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Calejo MT, Ilmarinen T, Skottman H, Kellomäki M. Breath figures in tissue engineering and drug delivery: State-of-the-art and future perspectives. Acta Biomater 2018; 66:44-66. [PMID: 29183847 DOI: 10.1016/j.actbio.2017.11.043] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Revised: 11/09/2017] [Accepted: 11/22/2017] [Indexed: 12/11/2022]
Abstract
The breath figure (BF) method is an easy, low-cost method to prepare films with a highly organized honeycomb-like porous surface. The particular surface topography and porous nature of these materials makes them valuable substrates for studying the complex effects of topography on cell fate, and to produce biomimetic materials with high performance in tissue engineering. Numerous researchers over the last two decades have studied the effects of the honeycomb topography on a variety of primary and immortalized cell lines, and drew important conclusions that can be translated to the construction of optimal biomaterials for cell culture. The literature also encouragingly shows the potential of honeycomb films to induce differentiation of stem cells down a specific lineage without the need for biochemical stimuli. Here, we review the main studies where BF honeycomb films are used as substrates for tissue engineering applications. Furthermore, we highlight the numerous advantages of the porous nature of the films, such as the enhanced, spatially controlled adsorption of proteins, the topographical cues influencing cellular behavior, and the enhanced permeability which is essential both in vitro and in vivo. Finally, this review highlights the elegant use of honeycomb films as drug-eluting biomaterials or as reservoirs for distinct drug delivery systems. STATEMENT OF SIGNIFICANCE Combining biocompatible surfaces and 3D nano/microscale topographies, such as pores or grooves, is an effective strategy for manufacturing tissue engineering scaffolds. The breath figure (BF) method is an easy technique to prepare cell culture substrates with an organized, honeycomb-like porous surface. These surface features make these scaffolds valuable for studying how the cells interact with the biomaterials. Their unique surface topography can also resemble the natural environment of the tissues in the human body. For that reason, numerous studies, using different cell types, have shown that honeycomb films can constitute high performance substrates for cell culture. Here, we review those studies, we highlight the advantages of honeycomb films in tissue engineering and we discuss their potential as unique drug-eluting systems.
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Affiliation(s)
- Maria Teresa Calejo
- BioMediTech Institute and Faculty of Biomedical Sciences and Engineering, Tampere University of Technology, Tampere, Finland.
| | - Tanja Ilmarinen
- BioMediTech Institute and Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland
| | - Heli Skottman
- BioMediTech Institute and Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland
| | - Minna Kellomäki
- BioMediTech Institute and Faculty of Biomedical Sciences and Engineering, Tampere University of Technology, Tampere, Finland; BioMediTech Institute and Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland
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94
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Abstract
The therapeutic efficacy of tissue-engineered constructs is often compromised by inadequate inosculation and neo-vascularization. This problem is considered one of the biggest hurdles in the field and finding a solution is currently the focus of a great fraction of the research community. Many of the methodologies designed to address this issue propose the use of endothelial cells and angiogenic growth factors, or combinations of both, to accelerate neo-vascularization after transplantation. However, an adequate solution is still elusive. In this context, we describe a methodology that combines the use of the stromal vascular fraction (SVF) isolated from adipose tissue with low oxygen culture to produce pre-vascularized cell sheets as angiogenic tools for Tissue Engineering. The herein proposed approach takes advantage of the SVF angiogenic nature conferred by adipose stem cells, endothelial progenitors, endothelial and hematopoietic cells, and pericytes and further potentiates it using low oxygen, or hypoxic, culture. Freshly isolated nucleated SVF cells are cultured in hyperconfluent conditions under hypoxia (pO2 = 5 %) for up to 5 days in medium without extrinsic growth factors enabling the generation of contiguous sheets as described by the cell sheet engineering technique. Flow cytometry and immunocytochemistry allow confirming the phenotype of the different cell types composing the cell-sheets as well the organization of the CD31(+) cells in branched and highly complex tube-like structures. Overall, a simple and flexible approach to promote growth factor-free pre-vascularization of cell sheets for tissue engineering (TE) applications is described.
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95
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Yan Z, Yin H, Nerlich M, Pfeifer CG, Docheva D. Boosting tendon repair: interplay of cells, growth factors and scaffold-free and gel-based carriers. J Exp Orthop 2018; 5:1. [PMID: 29330711 PMCID: PMC5768579 DOI: 10.1186/s40634-017-0117-1] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Accepted: 12/20/2017] [Indexed: 12/21/2022] Open
Abstract
Background Tendons are dense connective tissues and critical components for the integrity and function of the musculoskeletal system. Tendons connect bone to muscle and transmit forces on which locomotion entirely depends. Due to trauma, overuse and age-related degeneration, many people suffer from acute or chronic tendon injuries. Owing to their hypovascularity and hypocellularity, tendinopathies remain a substantial challenge for both clinicians and researchers. Surgical treatment includes suture or transplantation of autograft, allograft or xenograft, and these serve as the most common technique for rescuing tendon injuries. However, the therapeutic efficacies are limited by drawbacks including inevitable donor site morbidity, poor graft integration, adhesion formations and high rates of recurrent tearing. This review summarizes the literature of the past 10 y concerning scaffold-free and gel-based approaches for treating tendon injuries, with emphasis on specific advantages of such modes of application, as well as the obtained results regarding in vitro and in vivo tenogenesis. Results The search was focused on publications released after 2006 and 83 articles have been analysed. The main results are summarizing and discussing the clear advantages of scaffold-free and hydrogels carriers that can be functionalized with cells alone or in combination with growth factors. Conclusion The improved understanding of tissue resident adult stem cells has made a significant progress in recent years as well as strategies to steer their fate toward tendon lineage, with the help of growth factors, have been identified. The field of tendon tissue engineering is exploring diverse models spanning from hard scaffolds to gel-based and scaffold-free approaches seeking easier cell delivery and integration in the site of injury. Still, the field needs to consider a multifactorial approach that is based on the combination and fine-tuning of chemical and biomechanical stimuli. Taken together, tendon tissue engineering has now excellent foundations and enters the period of precision and translation to models with clinical relevance on which better treatment options of tendon injuries can be shaped up.
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Affiliation(s)
- Zexing Yan
- Laboratory of Experimental Trauma Surgery, Department of Trauma Surgery, University Regensburg Medical Centre, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany
| | - Heyong Yin
- Laboratory of Experimental Trauma Surgery, Department of Trauma Surgery, University Regensburg Medical Centre, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany
| | - Michael Nerlich
- Laboratory of Experimental Trauma Surgery, Department of Trauma Surgery, University Regensburg Medical Centre, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany
| | - Christian G Pfeifer
- Laboratory of Experimental Trauma Surgery, Department of Trauma Surgery, University Regensburg Medical Centre, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany
| | - Denitsa Docheva
- Laboratory of Experimental Trauma Surgery, Department of Trauma Surgery, University Regensburg Medical Centre, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany. .,Director of Experimental Trauma Surgery, Department of Trauma Surgery, University Regensburg Medical Centre, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany.
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96
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Kim JH, Ko SY, Lee JH, Kim DH, Yun JH. Evaluation of the periodontal regenerative properties of patterned human periodontal ligament stem cell sheets. J Periodontal Implant Sci 2017; 47:402-415. [PMID: 29333326 PMCID: PMC5764766 DOI: 10.5051/jpis.2017.47.6.402] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Accepted: 12/23/2017] [Indexed: 12/19/2022] Open
Abstract
Purpose The aim of this study was to determine the effects of patterned human periodontal ligament stem cell (hPDLSC) sheets fabricated using a thermoresponsive substratum. Methods In this study, we fabricated patterned hPDLSC sheets using nanotopographical cues to modulate the alignment of the cell sheet. Results The hPDLSCs showed rapid monolayer formation on various surface pattern widths. Compared to cell sheets grown on flat surfaces, there were no significant differences in cell attachment and growth on the nanopatterned substratum. However, the patterned hPDLSC sheets showed higher periodontal ligamentogenesis-related gene expression in early stages than the unpatterned cell sheets. Conclusions This experiment confirmed that patterned cell sheets provide flexibility in designing hPDLSC sheets, and that these stem cell sheets may be candidates for application in periodontal regenerative therapy.
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Affiliation(s)
- Joong-Hyun Kim
- Department of Periodontology, Chonbuk National University School of Dentistry and Institute of Oral Bioscience, Jeonju, Korea
| | - Seok-Yeong Ko
- Department of Periodontology, Chonbuk National University School of Dentistry and Institute of Oral Bioscience, Jeonju, Korea
| | - Justin Ho Lee
- Department of Bioengineering, University of Washington, Seattle, WA, USA
| | - Deok-Ho Kim
- Department of Bioengineering, University of Washington, Seattle, WA, USA.,Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, WA, USA.,Center for Cardiovascular Biology, University of Washington, Seattle, WA, USA
| | - Jeong-Ho Yun
- Department of Periodontology, Chonbuk National University School of Dentistry and Institute of Oral Bioscience, Jeonju, Korea.,Research Institute of Clinical Medicine, Chonbuk National University, Jeonju, Korea.,Biomedical Research Institute, Chonbuk National University Hospital, Jeonju, Korea
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97
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Cell sheet-based multilayered liver tumor models for anti-cancer drug screening. Biotechnol Lett 2017; 40:427-435. [PMID: 29159512 DOI: 10.1007/s10529-017-2476-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2017] [Accepted: 11/13/2017] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To fabricate in vitro cell-dense, three-dimensional (3D) tumor models by employing a cell sheet technology for testing anti-cancer drug efficacy. RESULTS The stratified liver tumor models were fabricated by stacking contiguous HepG2 cell sheets. Triple-layer (3L), double-layer (2L), single-layer (1L) cell sheet-based liver tumor models (CSLTMs) demonstrated 106, 96, 85% cell viability, respectively, after 3 days treatment of 10 µM doxorubicin hydrochloride (DOX), while cell viability in two-dimensional (2D) conventional culture (control) was 27%. After 7 days of DOX treatment, the viabilities of 3L, 2L, 1L, control were 24, 14, 3 and 4%, respectively. Probable explanations were blocked diffusion of DOX by the intact and multilayered structure and also hypoxia in the bottom of multilayered cell sheets. CONCLUSION CSLTMs showed a thickness-dependent cytotoxic efficacy of DOX and greater drug resistance than the control, thereby providing useful information toward the development of improved biomimetic tumor models.
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98
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Yorukoglu AC, Kiter AE, Akkaya S, Satiroglu-Tufan NL, Tufan AC. A Concise Review on the Use of Mesenchymal Stem Cells in Cell Sheet-Based Tissue Engineering with Special Emphasis on Bone Tissue Regeneration. Stem Cells Int 2017; 2017:2374161. [PMID: 29230248 PMCID: PMC5694585 DOI: 10.1155/2017/2374161] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Revised: 08/30/2017] [Accepted: 09/12/2017] [Indexed: 12/19/2022] Open
Abstract
The integration of stem cell technology and cell sheet engineering improved the potential use of cell sheet products in regenerative medicine. This review will discuss the use of mesenchymal stem cells (MSCs) in cell sheet-based tissue engineering. Besides their adhesiveness to plastic surfaces and their extensive differentiation potential in vitro, MSCs are easily accessible, expandable in vitro with acceptable genomic stability, and few ethical issues. With all these advantages, they are extremely well suited for cell sheet-based tissue engineering. This review will focus on the use of MSC sheets in osteogenic tissue engineering. Potential application techniques with or without scaffolds and/or grafts will be discussed. Finally, the importance of osteogenic induction of these MSC sheets in orthopaedic applications will be demonstrated.
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Affiliation(s)
- A. Cagdas Yorukoglu
- Department of Orthopaedics and Traumatology, School of Medicine, Pamukkale University, Denizli, Turkey
| | - A. Esat Kiter
- Department of Orthopaedics and Traumatology, School of Medicine, Pamukkale University, Denizli, Turkey
| | - Semih Akkaya
- Department of Orthopaedics and Traumatology, School of Medicine, Pamukkale University, Denizli, Turkey
| | - N. Lale Satiroglu-Tufan
- Department of Forensic Medicine, Forensic Genetics Laboratory, and Department of Pediatric Genetics, School of Medicine, Ankara University, Ankara, Turkey
| | - A. Cevik Tufan
- Department of Histology and Embryology, School of Medicine, Ankara Yıldırım Beyazıt University, Ankara, Turkey
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99
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Maehara M, Sato M, Toyoda E, Takahashi T, Okada E, Kotoku T, Watanabe M. Characterization of polydactyly-derived chondrocyte sheets versus adult chondrocyte sheets for articular cartilage repair. Inflamm Regen 2017; 37:22. [PMID: 29259721 PMCID: PMC5725814 DOI: 10.1186/s41232-017-0053-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Accepted: 09/26/2017] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND We previously conducted a first-in-human clinical study of articular cartilage repair using autologous chondrocyte sheets and confirmed the regeneration of hyaline-like cartilage in all eight patients. However, regenerative medicine with autologous chondrocyte sheets requires the harvesting of tissue from healthy regions, and the quality of this tissue varies between individuals. To overcome such limitations, allogeneic transplantation is a promising treatment method, particularly for articular cartilage repair. In this study, we investigated the characteristics of polydactyly-derived chondrocyte sheets fabricated from the chondrocytes of young polydactyly donors. METHODS Polydactyly-derived chondrocyte (PD) sheets were fabricated from the tissue obtained from eight polydactyly donors (average age = 13.4 months). To create these PD sheets, chondrocytes at passage 2 or 3 were seeded on temperature-responsive culture inserts and cultured for 2 weeks. For comparison, adult chondrocyte sheets were fabricated from tissue obtained from 11 patients who underwent total knee arthroplasty (TKA; average age = 74 years). To create these TKA sheets, chondrocytes and synovial cells were cocultured, and the chondrocyte sheets were triple-layered according to the protocol from our previous clinical study. Cell count, cell viability, cell surface markers, cell histology, and humoral factors secreted by the sheets were characterized and compared between the PD sheets and TKA sheets. RESULTS Polydactyly-derived chondrocytes proliferated rapidly to establish a layered structure with sufficient extracellular matrix and formed sheets that could be easily manipulated without tearing. Similar to TKA sheets, PD sheets expressed aggrecan and fibronectin at the protein level and the surface markers CD44, CD81, and CD90, which are characteristic of mesenchymal cells. PD sheets also produced significantly higher levels of transforming growth factor beta-1 and lower levels of matrix metalloproteinase-3 than those produced by TKA sheets, suggesting that young polydactyly-derived chondrocytes have advantages as a potential cell source. CONCLUSIONS PD sheets exhibited characteristics thought to be important to chondrocyte sheets as well as proliferative capacity that may facilitate provision of a stable supply in the future.
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Affiliation(s)
- Miki Maehara
- Department of Orthopaedic Surgery, Surgical Science, Tokai University School of Medicine, Kanagawa, Japan
| | - Masato Sato
- Department of Orthopaedic Surgery, Surgical Science, Tokai University School of Medicine, Kanagawa, Japan
| | - Eriko Toyoda
- Department of Orthopaedic Surgery, Surgical Science, Tokai University School of Medicine, Kanagawa, Japan
| | - Takumi Takahashi
- Department of Orthopaedic Surgery, Surgical Science, Tokai University School of Medicine, Kanagawa, Japan
| | - Eri Okada
- Department of Orthopaedic Surgery, Surgical Science, Tokai University School of Medicine, Kanagawa, Japan
| | | | - Masahiko Watanabe
- Department of Orthopaedic Surgery, Surgical Science, Tokai University School of Medicine, Kanagawa, Japan
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100
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Liu C, Zhou Y, Sun M, Li Q, Dong L, Ma L, Cheng K, Weng W, Yu M, Wang H. Light-Induced Cell Alignment and Harvest for Anisotropic Cell Sheet Technology. ACS APPLIED MATERIALS & INTERFACES 2017; 9:36513-36524. [PMID: 28984126 DOI: 10.1021/acsami.7b07202] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Well-organized orientation of cells and anisotropic extracellular matrix (ECM) are crucial in engineering biomimetic tissues, such as muscles, arteries, and nervous system, and so on. This strategy, however, is only beginning to be explored. Here, we demonstrated a light-induced cell alignment and harvest for anisotropic cell sheets (ACS) technology using light-responsive TiO2 nanodots film (TNF) and photo-cross-linkable gelatin methacrylate (GelMA). Cell initial behaviors on TNF might be controlled by micropatterns of light-induced distinct surface hydroxyl features, owing to a sensing mechanism of myosin II-driven retraction of lamellipodia. Further light treatment allowed ACS detachment from TNF surface while simultaneously solidified the GelMA, realizing the automatic transference of ACS. Moreover, two detached ACS were successfully stacked into a 3D bilayer construct with controllable orientation of individual layer and maintained cell alignment for more than 7 days. Interestingly, the anisotropic HFF-1 cell sheets could further induce the HUVECs to form anisotropic capillary-like networks via upregulating VEGFA and ANGPT1 and producing anisotropic ECM. This developed integrated-functional ACS technology therefore provides a novel route to produce complex tissue constructs with well-defined orientations and may have a profound impact on regenerative medicine.
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Affiliation(s)
- Chao Liu
- The Affiliated Stomatologic Hospital and ‡The First Affiliated Hospital of Medical College, Zhejiang University , Hangzhou 310003, China
- School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications and ∥The State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University , Hangzhou 310027, China
| | - Ying Zhou
- The Affiliated Stomatologic Hospital and ‡The First Affiliated Hospital of Medical College, Zhejiang University , Hangzhou 310003, China
- School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications and ∥The State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University , Hangzhou 310027, China
| | - Miao Sun
- The Affiliated Stomatologic Hospital and ‡The First Affiliated Hospital of Medical College, Zhejiang University , Hangzhou 310003, China
- School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications and ∥The State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University , Hangzhou 310027, China
| | - Qi Li
- The Affiliated Stomatologic Hospital and ‡The First Affiliated Hospital of Medical College, Zhejiang University , Hangzhou 310003, China
- School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications and ∥The State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University , Hangzhou 310027, China
| | - Lingqing Dong
- The Affiliated Stomatologic Hospital and ‡The First Affiliated Hospital of Medical College, Zhejiang University , Hangzhou 310003, China
- School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications and ∥The State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University , Hangzhou 310027, China
| | - Liang Ma
- The Affiliated Stomatologic Hospital and ‡The First Affiliated Hospital of Medical College, Zhejiang University , Hangzhou 310003, China
- School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications and ∥The State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University , Hangzhou 310027, China
| | - Kui Cheng
- The Affiliated Stomatologic Hospital and ‡The First Affiliated Hospital of Medical College, Zhejiang University , Hangzhou 310003, China
- School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications and ∥The State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University , Hangzhou 310027, China
| | - Wenjian Weng
- The Affiliated Stomatologic Hospital and ‡The First Affiliated Hospital of Medical College, Zhejiang University , Hangzhou 310003, China
- School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications and ∥The State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University , Hangzhou 310027, China
| | - Mengfei Yu
- The Affiliated Stomatologic Hospital and ‡The First Affiliated Hospital of Medical College, Zhejiang University , Hangzhou 310003, China
- School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications and ∥The State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University , Hangzhou 310027, China
| | - Huiming Wang
- The Affiliated Stomatologic Hospital and ‡The First Affiliated Hospital of Medical College, Zhejiang University , Hangzhou 310003, China
- School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications and ∥The State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University , Hangzhou 310027, China
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