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Banerjee A, Datta S, Das A, Roy Chowdhury A, Datta P. A Micro-Scale Non-Linear Finite Element Model to Optimize the Mechanical Behavior of Bioprinted Constructs. 3D PRINTING AND ADDITIVE MANUFACTURING 2022; 9:490-502. [PMID: 36660750 PMCID: PMC9831571 DOI: 10.1089/3dp.2021.0238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Extrusion-based bioprinting is an enabling biofabrication technique that is used to create heterogeneous tissue constructs according to patient-specific geometries and compositions. The optimization of bioinks as per requirements for specific tissue applications is an essential exercise in ensuring clinical translation of the bioprinting technologies. Most notably, optimum hydrogel polymer concentrations are required to ensure adequate mechanical properties of bioprinted constructs without causing significant shear stresses on cells. However, experimental iterations are often tedious for optimizing the bioink properties. In this work, a nonlinear finite element modeling approach has been undertaken to determine the effect of different bioink parameters such as composition, concentration on the range of stresses being experienced by the cells in the bioprinted construct. The stress distribution of the cells at different parts of the constructs has also been modeled. It is found that both bioink chemical compositions and concentrations can substantially alter the stress effects experienced by the cells. Concentrated regions of softer cells near pore regions were found to increase stress concentrations by almost three times compared with stress generated in cells away from the pores. The study provides a method for rapid optimization of bioinks, design of bioprinted constructs, as well as toolpath plans for fabricating constructs with homogenous properties.
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Affiliation(s)
- Abhinaba Banerjee
- Department of Mechanical Engineering, Indian Institute of Engineering Science and Technology, Howrah, India
| | - Sudipto Datta
- Centre for Healthcare Science and Technology, Indian Institute of Engineering Science and Technology, Howrah, India
| | - Ankita Das
- Centre for Healthcare Science and Technology, Indian Institute of Engineering Science and Technology, Howrah, India
| | - Amit Roy Chowdhury
- Department of Aerospace Engineering and Applied Mechanics, Indian Institute of Engineering Science and Technology, Howrah, India
| | - Pallab Datta
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Kolkata, India
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2
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Allenby MC, Woodruff MA. Image analyses for engineering advanced tissue biomanufacturing processes. Biomaterials 2022; 284:121514. [DOI: 10.1016/j.biomaterials.2022.121514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 04/01/2022] [Accepted: 04/04/2022] [Indexed: 11/02/2022]
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3
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Barrett P, Quick TJ, Mudera V, Player DJ. Neuregulin 1 Drives Morphological and Phenotypical Changes in C2C12 Myotubes: Towards De Novo Formation of Intrafusal Fibres In Vitro. Front Cell Dev Biol 2022; 9:760260. [PMID: 35087826 PMCID: PMC8787273 DOI: 10.3389/fcell.2021.760260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 12/09/2021] [Indexed: 11/13/2022] Open
Abstract
Muscle spindles are sensory organs that detect and mediate both static and dynamic muscle stretch and monitor muscle position, through a specialised cell population, termed intrafusal fibres. It is these fibres that provide a key contribution to proprioception and muscle spindle dysfunction is associated with multiple neuromuscular diseases, aging and nerve injuries. To date, there are few publications focussed on de novo generation and characterisation of intrafusal muscle fibres in vitro. To this end, current models of skeletal muscle focus on extrafusal fibres and lack an appreciation for the afferent functions of the muscle spindle. The goal of this study was to produce and define intrafusal bag and chain myotubes from differentiated C2C12 myoblasts, utilising the addition of the developmentally associated protein, Neuregulin 1 (Nrg-1). Intrafusal bag myotubes have a fusiform shape and were assigned using statistical morphological parameters. The model was further validated using immunofluorescent microscopy and western blot analysis, directed against an extensive list of putative intrafusal specific markers, as identified in vivo. The addition of Nrg-1 treatment resulted in a 5-fold increase in intrafusal bag myotubes (as assessed by morphology) and increased protein and gene expression of the intrafusal specific transcription factor, Egr3. Surprisingly, Nrg-1 treated myotubes had significantly reduced gene and protein expression of many intrafusal specific markers and showed no specificity towards intrafusal bag morphology. Another novel finding highlights a proliferative effect for Nrg-1 during the serum starvation-initiated differentiation phase, leading to increased nuclei counts, paired with less myotube area per myonuclei. Therefore, despite no clear collective evidence for specific intrafusal development, Nrg-1 treated myotubes share two inherent characteristics of intrafusal fibres, which contain increased satellite cell numbers and smaller myonuclear domains compared with their extrafusal neighbours. This research represents a minimalistic, monocellular C2C12 model for progression towards de novo intrafusal skeletal muscle generation, with the most extensive characterisation to date. Integration of intrafusal myotubes, characteristic of native, in vivo intrafusal skeletal muscle into future biomimetic tissue engineered models could provide platforms for developmental or disease state studies, pre-clinical screening, or clinical applications.
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Affiliation(s)
- Philip Barrett
- Centre for 3D Models of Health and Disease, Division of Surgery and Interventional Science, Faculty of Medical Sciences, University College London, London, United Kingdom
| | - Tom J Quick
- Peripheral Nerve Injury Research Unit, Royal National Orthopaedic Hospital, London, United Kingdom.,UCL Centre for Nerve Engineering, University College London, London, United Kingdom
| | - Vivek Mudera
- Centre for 3D Models of Health and Disease, Division of Surgery and Interventional Science, Faculty of Medical Sciences, University College London, London, United Kingdom
| | - Darren J Player
- Centre for 3D Models of Health and Disease, Division of Surgery and Interventional Science, Faculty of Medical Sciences, University College London, London, United Kingdom
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4
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Fernández-Costa JM, Fernández-Garibay X, Velasco-Mallorquí F, Ramón-Azcón J. Bioengineered in vitro skeletal muscles as new tools for muscular dystrophies preclinical studies. J Tissue Eng 2021; 12:2041731420981339. [PMID: 33628411 PMCID: PMC7882756 DOI: 10.1177/2041731420981339] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 11/26/2020] [Indexed: 12/26/2022] Open
Abstract
Muscular dystrophies are a group of highly disabling disorders that share degenerative muscle weakness and wasting as common symptoms. To date, there is not an effective cure for these diseases. In the last years, bioengineered tissues have emerged as powerful tools for preclinical studies. In this review, we summarize the recent technological advances in skeletal muscle tissue engineering. We identify several ground-breaking techniques to fabricate in vitro bioartificial muscles. Accumulating evidence shows that scaffold-based tissue engineering provides topographical cues that enhance the viability and maturation of skeletal muscle. Functional bioartificial muscles have been developed using human myoblasts. These tissues accurately responded to electrical and biological stimulation. Moreover, advanced drug screening tools can be fabricated integrating these tissues in electrical stimulation platforms. However, more work introducing patient-derived cells and integrating these tissues in microdevices is needed to promote the clinical translation of bioengineered skeletal muscle as preclinical tools for muscular dystrophies.
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Affiliation(s)
- Juan M. Fernández-Costa
- Biosensors for Bioengineering, Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
| | - Xiomara Fernández-Garibay
- Biosensors for Bioengineering, Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
| | - Ferran Velasco-Mallorquí
- Biosensors for Bioengineering, Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
| | - Javier Ramón-Azcón
- Biosensors for Bioengineering, Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
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5
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Barrett P, Quick TJ, Mudera V, Player DJ. Generating intrafusal skeletal muscle fibres in vitro: Current state of the art and future challenges. J Tissue Eng 2020; 11:2041731420985205. [PMID: 34956586 PMCID: PMC8693220 DOI: 10.1177/2041731420985205] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 12/12/2020] [Indexed: 01/18/2023] Open
Abstract
Intrafusal fibres are a specialised cell population in skeletal muscle, found within the muscle spindle. These fibres have a mechano-sensory capacity, forming part of the monosynaptic stretch-reflex arc, a key component responsible for proprioceptive function. Impairment of proprioception and associated dysfunction of the muscle spindle is linked with many neuromuscular diseases. Research to-date has largely been undertaken in vivo or using ex vivo preparations. These studies have provided a foundation for our understanding of muscle spindle physiology, however, the cellular and molecular mechanisms which underpin physiological changes are yet to be fully elucidated. Therefrom, the use of in vitro models has been proposed, whereby intrafusal fibres can be generated de novo. Although there has been progress, it is predominantly a developing and evolving area of research. This narrative review presents the current state of art in this area and proposes the direction of future work, with the aim of providing novel pre-clinical and clinical applications.
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Affiliation(s)
- Philip Barrett
- Centre for 3D Models of Health and Disease, Division of Surgery and Interventional Science, Faculty of Medical Sciences, University College London, London, UK
| | - Tom J Quick
- Peripheral Nerve Injury Research Unit, Royal National Orthopaedic Hospital, Stanmore, UK
- UCL Centre for Nerve Engineering, University College London, London, UK
| | - Vivek Mudera
- Centre for 3D Models of Health and Disease, Division of Surgery and Interventional Science, Faculty of Medical Sciences, University College London, London, UK
| | - Darren J Player
- Centre for 3D Models of Health and Disease, Division of Surgery and Interventional Science, Faculty of Medical Sciences, University College London, London, UK
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6
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Carlson-Stevermer J, Das A, Abdeen AA, Fiflis D, Grindel BI, Saxena S, Akcan T, Alam T, Kletzien H, Kohlenberg L, Goedland M, Dombroe MJ, Saha K. Design of efficacious somatic cell genome editing strategies for recessive and polygenic diseases. Nat Commun 2020; 11:6277. [PMID: 33293555 PMCID: PMC7722885 DOI: 10.1038/s41467-020-20065-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 11/13/2020] [Indexed: 02/06/2023] Open
Abstract
Compound heterozygous recessive or polygenic diseases could be addressed through gene correction of multiple alleles. However, targeting of multiple alleles using genome editors could lead to mixed genotypes and adverse events that amplify during tissue morphogenesis. Here we demonstrate that Cas9-ribonucleoprotein-based genome editors can correct two distinct mutant alleles within a single human cell precisely. Gene-corrected cells in an induced pluripotent stem cell model of Pompe disease expressed the corrected transcript from both corrected alleles, leading to enzymatic cross-correction of diseased cells. Using a quantitative in silico model for the in vivo delivery of genome editors into the developing human infant liver, we identify progenitor targeting, delivery efficiencies, and suppression of imprecise editing outcomes at the on-target site as key design parameters that control the efficacy of various therapeutic strategies. This work establishes that precise gene editing to correct multiple distinct gene variants could be highly efficacious if designed appropriately.
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Affiliation(s)
- Jared Carlson-Stevermer
- Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, WI, USA
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI, USA
| | - Amritava Das
- Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, WI, USA
- Morgridge Institute for Research, Madison, WI, USA
| | - Amr A Abdeen
- Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, WI, USA
| | - David Fiflis
- Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, WI, USA
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI, USA
| | - Benjamin I Grindel
- Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, WI, USA
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI, USA
| | - Shivani Saxena
- Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, WI, USA
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI, USA
| | - Tugce Akcan
- Department of Surgery, University of Wisconsin-Madison, Madison, WI, USA
| | - Tausif Alam
- Department of Surgery, University of Wisconsin-Madison, Madison, WI, USA
| | - Heidi Kletzien
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI, USA
| | - Lucille Kohlenberg
- Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, WI, USA
| | - Madelyn Goedland
- Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, WI, USA
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI, USA
| | - Micah J Dombroe
- Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, WI, USA
| | - Krishanu Saha
- Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, WI, USA.
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI, USA.
- Retina Research Foundation Kathryn and Latimer Murfee Chair, Madison, WI, USA.
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7
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Palmieri V, Sciandra F, Bozzi M, De Spirito M, Papi M. 3D Graphene Scaffolds for Skeletal Muscle Regeneration: Future Perspectives. Front Bioeng Biotechnol 2020; 8:383. [PMID: 32432094 PMCID: PMC7214535 DOI: 10.3389/fbioe.2020.00383] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 04/07/2020] [Indexed: 12/21/2022] Open
Abstract
Although skeletal muscle can regenerate after injury, in chronic damages or in traumatic injuries its endogenous self-regeneration is impaired. Consequently, tissue engineering approaches are promising tools for improving skeletal muscle cells proliferation and engraftment. In the last decade, graphene and its derivates are being explored as novel biomaterials for scaffolds production for skeletal muscle repair. This review describes 3D graphene-based materials that are currently used to generate complex structures able not only to guide cell alignment and fusion but also to stimulate muscle contraction thanks to their electrical conductivity. Graphene is an allotrope of carbon that has indeed unique mechanical, electrical and surface properties and has been functionalized to interact with a wide range of synthetic and natural polymers resembling native musculoskeletal tissue. More importantly, graphene can stimulate stem cell differentiation and has been studied for cardiac, neuronal, bone, skin, adipose, and cartilage tissue regeneration. Here we recapitulate recent findings on 3D scaffolds for skeletal muscle repairing and give some hints for future research in multifunctional graphene implants.
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Affiliation(s)
- Valentina Palmieri
- Dipartimento di Neuroscienze, Università Cattolica del Sacro Cuore, Rome, Italy
- Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
| | - Francesca Sciandra
- Istituto di Scienze e Tecnologie Chimiche “Giulio Natta”, (SCITEC)-CNR, SS Roma, Italy
| | - Manuela Bozzi
- Dipartimento di Scienze Biotecnologiche di Base, Cliniche Intensivologiche e Perioperatorie, Sezione di Biochimica e Biochimica Clinica, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Marco De Spirito
- Dipartimento di Neuroscienze, Università Cattolica del Sacro Cuore, Rome, Italy
- Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
| | - Massimiliano Papi
- Dipartimento di Neuroscienze, Università Cattolica del Sacro Cuore, Rome, Italy
- Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
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8
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Vajanthri K, Sidu R, Mahto S. Micropatterning and Alignment of Skeletal Muscle Myoblasts Using Microflowed Plasma Process. Ing Rech Biomed 2020. [DOI: 10.1016/j.irbm.2019.08.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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9
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Jo SB, Erdenebileg U, Dashnyam K, Jin GZ, Cha JR, El-Fiqi A, Knowles JC, Patel KD, Lee HH, Lee JH, Kim HW. Nano-graphene oxide/polyurethane nanofibers: mechanically flexible and myogenic stimulating matrix for skeletal tissue engineering. J Tissue Eng 2020; 11:2041731419900424. [PMID: 32076499 PMCID: PMC7001895 DOI: 10.1177/2041731419900424] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 12/18/2019] [Indexed: 12/16/2022] Open
Abstract
For skeletal muscle engineering, scaffolds that can stimulate myogenic differentiation of cells while possessing suitable mechanical properties (e.g. flexibility) are required. In particular, the elastic property of scaffolds is of importance which helps to resist and support the dynamic conditions of muscle tissue environment. Here, we developed highly flexible nanocomposite nanofibrous scaffolds made of polycarbonate diol and isosorbide-based polyurethane and hydrophilic nano-graphene oxide added at concentrations up to 8%. The nano-graphene oxide incorporation increased the hydrophilicity, elasticity, and stress relaxation capacity of the polyurethane-derived nanofibrous scaffolds. When cultured with C2C12 cells, the polyurethane-nano-graphene oxide nanofibers enhanced the initial adhesion and spreading of cells and further the proliferation. Furthermore, the polyurethane-nano-graphene oxide scaffolds significantly up-regulated the myogenic mRNA levels and myosin heavy chain expression. Of note, the cells on the flexible polyurethane-nano-graphene oxide nanofibrous scaffolds could be mechanically stretched to experience dynamic tensional force. Under the dynamic force condition, the cells expressed significantly higher myogenic differentiation markers at both gene and protein levels and exhibited more aligned myotubular formation. The currently developed polyurethane-nano-graphene oxide nanofibrous scaffolds, due to their nanofibrous morphology and high mechanical flexibility, along with the stimulating capacity for myogenic differentiation, are considered to be a potential matrix for future skeletal muscle engineering.
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Affiliation(s)
- Seung Bin Jo
- Institute of Tissue Regeneration
Engineering (ITREN), Dankook University, Cheonan, Republic of Korea
| | - Uyanga Erdenebileg
- Institute of Tissue Regeneration
Engineering (ITREN), Dankook University, Cheonan, Republic of Korea
- Department of Nanobiomedical Science and
BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University,
Cheonan, Republic of Korea
| | - Khandmaa Dashnyam
- Institute of Tissue Regeneration
Engineering (ITREN), Dankook University, Cheonan, Republic of Korea
- Department of Nanobiomedical Science and
BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University,
Cheonan, Republic of Korea
- UCL Eastman-Korea Dental Medicine
Innovation Centre, Dankook University, Cheonan, Republic of Korea
| | - Guang-Zhen Jin
- Institute of Tissue Regeneration
Engineering (ITREN), Dankook University, Cheonan, Republic of Korea
- Department of Nanobiomedical Science and
BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University,
Cheonan, Republic of Korea
- UCL Eastman-Korea Dental Medicine
Innovation Centre, Dankook University, Cheonan, Republic of Korea
| | - Jae-Ryung Cha
- Department of Nanobiomedical Science and
BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University,
Cheonan, Republic of Korea
| | - Ahmed El-Fiqi
- Institute of Tissue Regeneration
Engineering (ITREN), Dankook University, Cheonan, Republic of Korea
| | - Jonathan C. Knowles
- Department of Nanobiomedical Science and
BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University,
Cheonan, Republic of Korea
- UCL Eastman-Korea Dental Medicine
Innovation Centre, Dankook University, Cheonan, Republic of Korea
- Division of Biomaterials and Tissue
Engineering, Eastman Dental Institute, University College London, London, UK
- The Discoveries Centre for Regenerative
and Precision Medicine, Eastman Dental Institute, University College London, London,
UK
| | - Kapil Dev Patel
- Institute of Tissue Regeneration
Engineering (ITREN), Dankook University, Cheonan, Republic of Korea
- Department of Nanobiomedical Science and
BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University,
Cheonan, Republic of Korea
- UCL Eastman-Korea Dental Medicine
Innovation Centre, Dankook University, Cheonan, Republic of Korea
| | - Hae-Hyoung Lee
- Institute of Tissue Regeneration
Engineering (ITREN), Dankook University, Cheonan, Republic of Korea
- UCL Eastman-Korea Dental Medicine
Innovation Centre, Dankook University, Cheonan, Republic of Korea
- Department of Biomaterials Science,
College of Dentistry, Dankook University, Cheonan, Republic of Korea
| | - Jung-Hwan Lee
- Institute of Tissue Regeneration
Engineering (ITREN), Dankook University, Cheonan, Republic of Korea
- Department of Nanobiomedical Science and
BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University,
Cheonan, Republic of Korea
- UCL Eastman-Korea Dental Medicine
Innovation Centre, Dankook University, Cheonan, Republic of Korea
- Department of Biomaterials Science,
College of Dentistry, Dankook University, Cheonan, Republic of Korea
| | - Hae-Won Kim
- Institute of Tissue Regeneration
Engineering (ITREN), Dankook University, Cheonan, Republic of Korea
- Department of Nanobiomedical Science and
BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University,
Cheonan, Republic of Korea
- UCL Eastman-Korea Dental Medicine
Innovation Centre, Dankook University, Cheonan, Republic of Korea
- Department of Biomaterials Science,
College of Dentistry, Dankook University, Cheonan, Republic of Korea
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Lee H, Ju YM, Kim I, Elsangeedy E, Lee JH, Yoo JJ, Atala A, Lee SJ. A novel decellularized skeletal muscle-derived ECM scaffolding system for in situ muscle regeneration. Methods 2019; 171:77-85. [PMID: 31278981 DOI: 10.1016/j.ymeth.2019.06.027] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 06/28/2019] [Accepted: 06/29/2019] [Indexed: 01/02/2023] Open
Abstract
The cell-based tissue engineering strategies have gained attention in restoring normal tissue function after skeletal muscle injuries; however, these approaches require a donor tissue biopsy and extensive cell expansion process prior to implantation. In order to avoid this limitation, we developed a novel cell-free muscle-specific scaffolding system that consisted of a skeletal muscle-derived decellularized extracellular matrix (dECM) and a myogenic factor, insulin growth factor-1 (IGF-1). Rheological, morphological, and biological properties of this muscle-specific scaffold (IGF-1/dECM) as well as collagen and dECM scaffolds were examined. The cell viability in all scaffolds had over 90% at 1, 3, and 7 days in culture. The cell proliferation in the IGF-1/dECM was significantly increased when compared with other groups. More importantly, the IGF-1/dECM strongly supported the myogenic differentiation in the scaffold as confirmed by myosin heavy chain (MHC) immunofluorescence. We also investigated the feasibility in a rabbit tibialis anterior (TA) muscle defect model. The IGF-1/dECM had a significantly greater number of myofibers when compared to both collagen and dECM groups at 1 and 2 months after implantation. We demonstrated that this novel muscle-specific scaffolding system could effectively promote the muscle tissue regeneration in situ.
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Affiliation(s)
- Hyeongjin Lee
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC 27157, USA
| | - Young Min Ju
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC 27157, USA
| | - Ickhee Kim
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC 27157, USA
| | - Ebrahim Elsangeedy
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC 27157, USA
| | - Joon Ho Lee
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC 27157, USA; Department of Anesthesiology and Pain Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Gyeonggi-Do 420-726, Republic of Korea
| | - James J Yoo
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC 27157, USA
| | - Anthony Atala
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC 27157, USA
| | - Sang Jin Lee
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC 27157, USA.
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