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Zhou Y, Xu Y, Zhang R, Wang H, Wang F, Wang Z, Zhang C, Zhang Z, Mei J, Tao S. Hyaluronic Acid-Dopamine-NCSN Hydrogel Combined With Extracellular Matrix Promotes Wound Healing. Macromol Biosci 2024; 24:e2300549. [PMID: 38514930 DOI: 10.1002/mabi.202300549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 03/17/2024] [Indexed: 03/23/2024]
Abstract
The skin barrier is essential to prevent pathogenic invasion. When injury occurs, multiple biological pathways are promptly activated and wound repair processes are triggered. The effective healing of wounds is essential for survival, and dysfunction could result from aberrant wound repair. Preparation of many hydrogels, which involve the addition of growth/cell factors or mimic extracellular matrix (ECM) components, has not resulted in significant advances in tissue recovery. ECM contains a large number of biologically active molecules that activate a variety of cellular transduction pathways, which are essential for wound repair. Here, this work prepares hyaluronic acid-dopamine-thiourea (HA-DA-NCSN) hydrogels exhibiting ultrafast gelation in situ, following the methods of Xu et al., and subsequently designs a hydrogel containing ECM particles. In addition, the loaded ECM material, specifically decellularized ECM material, not only enhances the strength of the hydrogel network, but also delivers bioactive substances that make it a suitable platform for skin wound repair. The ECM hydrogel has great potential as an efficient bioactive wound dressing. This research suggests that this strategy is likely to improve skin wound closure in rat skin wound models.
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Affiliation(s)
- Yingjie Zhou
- Institute of Biomaterials, The First Affiliated Hospital of Ningbo University, No.59 Liuting Street, Haishu District, Ningbo, 315010, China
| | - Yongbiao Xu
- Department of Public Health, Wuhan eighth hospital, 1307 Zhongshan Avenue, Jiangan District, Wuhan, 430010, China
| | - Rui Zhang
- Institute of Biomaterials, The First Affiliated Hospital of Ningbo University, No.59 Liuting Street, Haishu District, Ningbo, 315010, China
| | - Haiyang Wang
- Institute of Bioscaffold Transplantation and Immunology, Wenzhou Medical University, North Center Road, Ouhai District, Wenzhou, 325035, China
| | - Fangfang Wang
- Institute of Biomaterials, The First Affiliated Hospital of Ningbo University, No.59 Liuting Street, Haishu District, Ningbo, 315010, China
| | - Zonghuan Wang
- Institute of Biomaterials, The First Affiliated Hospital of Ningbo University, No.59 Liuting Street, Haishu District, Ningbo, 315010, China
| | - Chi Zhang
- Institute of Biomaterials, The First Affiliated Hospital of Ningbo University, No.59 Liuting Street, Haishu District, Ningbo, 315010, China
| | - Zhihan Zhang
- Department of Orthopaedic Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Jin Mei
- Institute of Biomaterials, The First Affiliated Hospital of Ningbo University, No.59 Liuting Street, Haishu District, Ningbo, 315010, China
- Institute of Bioscaffold Transplantation and Immunology, Wenzhou Medical University, North Center Road, Ouhai District, Wenzhou, 325035, China
| | - Shengxiang Tao
- Department of Orthopaedic Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
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Ghaffari N, Mokhtari T, Adabi M, Ebrahimi B, Kamali M, Gholaminejhad M, Hassanzadeh G. Neurological recovery and neurogenesis by curcumin sustained-release system cross-linked with an acellular spinal cord scaffold in rat spinal cord injury: Targeting NLRP3 inflammasome pathway. Phytother Res 2024; 38:2669-2686. [PMID: 38500263 DOI: 10.1002/ptr.8179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Revised: 01/03/2024] [Accepted: 02/11/2024] [Indexed: 03/20/2024]
Abstract
In the context of treating spinal cord injury (SCI), the modulation of inflammatory responses, and the creation of a suitable region for tissue regeneration may present a promising approach. This study aimed to evaluate the effects of curcumin (Cur)-loaded bovine serum albumin nanoparticles (Cur-BSA NPs) cross-linked with an acellular spinal cord scaffold (ASCS) on the functional recovery in a rat model of SCI. We developed an ASCS using chemical and physical methods. Cur-BSA, and blank (B-BSA) NPs were fabricated and cross-linked with ASCS via EDC-NHS, resulting in the production of Cur-ASCS and B-ASCS. We assessed the properties of scaffolds and NPs as well as their cross-links. Finally, using a male rat hemisection model of SCI, we investigated the consequences of the resulting scaffolds. The inflammatory markers, neuroregeneration, and functional recovery were evaluated. Our results showed that Cur was efficiently entrapped at the rate of 42% ± 1.3 in the NPs. Compared to B-ASCS, Cur-ASCS showed greater effectiveness in the promotion of motor recovery. The implantation of both scaffolds could increase the migration of neural stem cells (Nestin- and GFAP-positive cells) following SCI with the superiority of Cur-ASCS. Cur-ASCS was successful to regulate the gene expression and protein levels of NLRP3, ASC, and Casp1in the spinal cord lesion. Our results indicate that using ASCS can lead to the entrance of cells into the scaffold and promote neurogenesis. However, Cur-ASCS had greater effects in terms of inflammation relief and enhanced neurogenesis.
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Affiliation(s)
- Neda Ghaffari
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Tahmineh Mokhtari
- Hubei Key Laboratory of Embryonic Stem Cell Research, Faculty of Basic Medical Sciences, Hubei University of Medicine, Shiyan, China
- Department of Histology and Embryology, Faculty of Basic Medical Sciences, Hubei University of Medicine, Shiyan, China
| | - Mahdi Adabi
- Department of Medical Nanotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Babak Ebrahimi
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Morteza Kamali
- Department of Medical Nanotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Morteza Gholaminejhad
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Gholamreza Hassanzadeh
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
- Department of Neurosciences and Addiction Studies, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
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Liu J, Yan R, Wang B, Chen S, Hong H, Liu C, Chen X. Decellularized extracellular matrix enriched with GDNF enhances neurogenesis and remyelination for improved motor recovery after spinal cord injury. Acta Biomater 2024; 180:308-322. [PMID: 38615813 DOI: 10.1016/j.actbio.2024.04.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 04/08/2024] [Accepted: 04/09/2024] [Indexed: 04/16/2024]
Abstract
Motor functional improvement represents a paramount treatment objective in the post-spinal cord injury (SCI) recovery process. However, neuronal cell death and axonal degeneration following SCI disrupt neural signaling, impeding the motor functional recovery. In this study, we developed a multifunctional decellularized spinal cord-derived extracellular matrix (dSECM), crosslinked with glial cell-derived neurotrophic factor (GDNF), to promote differentiation of stem cells into neural-like cells and facilitate axonogenesis and remyelination. After decellularization, the immunogenic cellular components were effectively removed in dSECM, while the crucial protein components were retained which supports stem cells proliferation and differentiation. Furthermore, sustained release of GDNF from the dSECM facilitated axonogenesis and remyelination by activating the PI3K/Akt and MEK/Erk pathways. Our findings demonstrate that the dSECM-GDNF platform promotes neurogenesis, axonogenesis, and remyelination to enhance neural signaling, thereby yielding promising therapeutic effects for motor functional improvement after SCI. STATEMENT OF SIGNIFICANCE: The dSECM promotes the proliferation and differentiation of MSCs or NSCs by retaining proteins associated with positive regulation of neurogenesis and neuronal differentiation, while eliminating proteins related to negative regulation of neurogenesis. After crosslinking, GDNF can be gradually released from the platform, thereby promoting neural differentiation, axonogenesis, and remyelination to enhance neural signaling through activation of the PI3K/Akt and MEK/Erk pathways. In vivo experiments demonstrated that dSECM-GDNF/MSC@GelMA hydrogel exhibited the ability to facilitate neuronal regeneration at 4 weeks post-surgery, while promoting axonogenesis and remyelination at 8 weeks post-surgery, ultimately leading to enhanced motor functional recovery. This study elucidates the ability of neural regeneration strategy to promote motor functional recovery and provides a promising approach for designing multifunctional tissue for SCI treatment.
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Affiliation(s)
- Jiashang Liu
- Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Engineering Research Center for Biomaterials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, PR China
| | - Ruijia Yan
- Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Engineering Research Center for Biomaterials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, PR China
| | - Bixue Wang
- Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Engineering Research Center for Biomaterials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, PR China
| | - Shu Chen
- Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Engineering Research Center for Biomaterials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, PR China
| | - Hua Hong
- Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Engineering Research Center for Biomaterials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, PR China
| | - Changsheng Liu
- Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Engineering Research Center for Biomaterials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, PR China.
| | - Xi Chen
- Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Engineering Research Center for Biomaterials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, PR China.
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Ortega JA, Soares de Aguiar GP, Chandravanshi P, Levy N, Engel E, Álvarez Z. Exploring the properties and potential of the neural extracellular matrix for next-generation regenerative therapies. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2024; 16:e1962. [PMID: 38723788 DOI: 10.1002/wnan.1962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 04/05/2024] [Accepted: 04/09/2024] [Indexed: 05/24/2024]
Abstract
The extracellular matrix (ECM) is a dynamic and complex network of proteins and molecules that surrounds cells and tissues in the nervous system and orchestrates a myriad of biological functions. This review carefully examines the diverse interactions between cells and the ECM, as well as the transformative chemical and physical changes that the ECM undergoes during neural development, aging, and disease. These transformations play a pivotal role in shaping tissue morphogenesis and neural activity, thereby influencing the functionality of the central nervous system (CNS). In our comprehensive review, we describe the diverse behaviors of the CNS ECM in different physiological and pathological scenarios and explore the unique properties that make ECM-based strategies attractive for CNS repair and regeneration. Addressing the challenges of scalability, variability, and integration with host tissues, we review how advanced natural, synthetic, and combinatorial matrix approaches enhance biocompatibility, mechanical properties, and functional recovery. Overall, this review highlights the potential of decellularized ECM as a powerful tool for CNS modeling and regenerative purposes and sets the stage for future research in this exciting field. This article is categorized under: Implantable Materials and Surgical Technologies > Nanotechnology in Tissue Repair and Replacement Therapeutic Approaches and Drug Discovery > Nanomedicine for Neurological Disease Implantable Materials and Surgical Technologies > Nanomaterials and Implants.
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Affiliation(s)
- J Alberto Ortega
- Department of Pathology and Experimental Therapeutics, Institute of Neurosciences, University of Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain
- Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), L'Hospitalet del Llobregat, Spain
| | - Gisele P Soares de Aguiar
- Department of Pathology and Experimental Therapeutics, Institute of Neurosciences, University of Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain
- Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), L'Hospitalet del Llobregat, Spain
| | - Palash Chandravanshi
- Biomaterials for Neural Regeneration Group, Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
| | - Natacha Levy
- Biomaterials for Neural Regeneration Group, Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
| | - Elisabeth Engel
- IMEM-BRT Group, Department of Materials Science and Engineering, EEBE, Technical University of Catalonia (UPC), Barcelona, Spain
- Biomaterials for Regenerative Therapies Group, Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
- CIBER en Bioingeniería, Biomateriales y Nanomedicina, CIBER-BBN, Madrid, Spain
| | - Zaida Álvarez
- Biomaterials for Neural Regeneration Group, Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
- CIBER en Bioingeniería, Biomateriales y Nanomedicina, CIBER-BBN, Madrid, Spain
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois, USA
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Zhou H, Zhu Y, Yang B, Huo Y, Yin Y, Jiang X, Ji W. Stimuli-responsive peptide hydrogels for biomedical applications. J Mater Chem B 2024; 12:1748-1774. [PMID: 38305498 DOI: 10.1039/d3tb02610h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
Stimuli-responsive hydrogels can respond to external stimuli with a change in the network structure and thus have potential application in drug release, intelligent sensing, and scaffold construction. Peptides possess robust supramolecular self-assembly ability, enabling spontaneous formation of nanostructures through supramolecular interactions and subsequently hydrogels. Therefore, peptide-based stimuli-responsive hydrogels have been widely explored as smart soft materials for biomedical applications in the last decade. Herein, we present a review article on design strategies and research progress of peptide hydrogels as stimuli-responsive materials in the field of biomedicine. The latest design and development of peptide hydrogels with responsive behaviors to stimuli are first presented. The following part provides a systematic overview of the functions and applications of stimuli-responsive peptide hydrogels in tissue engineering, drug delivery, wound healing, antimicrobial treatment, 3D cell culture, biosensors, etc. Finally, the remaining challenges and future prospects of stimuli-responsive peptide hydrogels are proposed. It is believed that this review will contribute to the rational design and development of stimuli-responsive peptide hydrogels toward biomedical applications.
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Affiliation(s)
- Haoran Zhou
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, P. R. China.
| | - Yanhua Zhu
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, P. R. China.
| | - Bingbing Yang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, P. R. China.
| | - Yehong Huo
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, P. R. China.
| | - Yuanyuan Yin
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Stomatological Hospital of Chongqing Medical University, Chongqing 401147, P. R. China
| | - Xuemei Jiang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, P. R. China.
| | - Wei Ji
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, P. R. China.
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Delcroix GJR, Hackett A, Schiller PC, Temple HT. Characterization of three washing/decellularization procedures for the production of bioactive human micronized neural tissue (hMINT). Cell Tissue Bank 2023; 24:693-703. [PMID: 36854877 DOI: 10.1007/s10561-023-10075-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 01/29/2023] [Indexed: 03/02/2023]
Abstract
BACKGROUND We developed a novel, injectable and decellularized human peripheral nerve-based scaffold, named Micronized Human Neural Tissue (hMINT), designed to be used as a supportive matrix for stem cell transplantation in the context of spinal cord injury (SCI). MATERIALS AND METHODS Human donated sciatic nerves were micronized at liquid nitrogen temperature prior to decellularization using 3 different procedures of various harshness. hMINT were characterized in terms of particle size, DNA, sulfated glycosaminoglycans (sGAG) and growth factors content. To test the biocompatibility and bioactivity of the various preparations, we used a type of mesenchymal stromal cells (MSCs), termed MIAMI cells, which were placed in contact with hMINT to monitor cell attachment by confocal microscopy and gene expression by RT-qPCR in vitro. RESULTS The content of DNA, sGAG and growth factors left in the product after processing was highly dependent on the decellularization procedure used. We demonstrated that hMINT are biocompatible and promoted the attachment and long-term survival of MIAMI cells in vitro. Finally, combination with hMINT increased MIAMI cells mRNA expression of pro-survival and anti-inflammatory factors. Importantly, the strongest bioactivity on MIAMI cells was observed with the hMINT decellularized using the mildest decellularization procedure, therefore emphasizing the importance of achieving an adequate decellularization without losing the hMINT's bioactivity. PERSPECTIVES AND CLINICAL SIGNIFICANCE The capacity of hMINT/stem cells to facilitate protection of injured neural tissue, promote axon re-growth and improve functional recovery will be tested in an animal model of SCI and other neurodegenerative disorders in the future.
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Affiliation(s)
- Gaëtan J-R Delcroix
- College of Allopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL, USA.
| | - Amber Hackett
- Miami Project to Cure Paralysis, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Paul C Schiller
- Geriatric Research Education and Clinical Center, Miami VA Healthcare System, Miami, FL, USA
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Mungenast L, Nieminen R, Gaiser C, Faia-Torres AB, Rühe J, Suter-Dick L. Electrospun decellularized extracellular matrix scaffolds promote the regeneration of injured neurons. BIOMATERIALS AND BIOSYSTEMS 2023; 11:100081. [PMID: 37427248 PMCID: PMC10329103 DOI: 10.1016/j.bbiosy.2023.100081] [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: 02/10/2023] [Revised: 05/23/2023] [Accepted: 06/17/2023] [Indexed: 07/11/2023] Open
Abstract
Traumatic injury to the spinal cord (SCI) causes the transection of neurons, formation of a lesion cavity, and remodeling of the microenvironment by excessive extracellular matrix (ECM) deposition and scar formation leading to a regeneration-prohibiting environment. Electrospun fiber scaffolds have been shown to simulate the ECM and increase neural alignment and neurite outgrowth contributing to a growth-permissive matrix. In this work, electrospun ECM-like fibers providing biochemical and topological cues are implemented into a scaffold to represent an oriented biomaterial suitable for the alignment and migration of neural cells in order to improve spinal cord regeneration. The successfully decellularized spinal cord ECM (dECM), with no visible cell nuclei and dsDNA content < 50 ng/mg tissue, showed preserved ECM components, such as glycosaminoglycans and collagens. Serving as the biomaterial for 3D printer-assisted electrospinning, highly aligned and randomly distributed dECM fiber scaffolds (< 1 µm fiber diameter) were fabricated. The scaffolds were cytocompatible and supported the viability of a human neural cell line (SH-SY5Y) for 14 days. Cells were selectively differentiated into neurons, as confirmed by immunolabeling of specific cell markers (ChAT, Tubulin ß), and followed the orientation given by the dECM scaffolds. After generating a lesion site on the cell-scaffold model, cell migration was observed and compared to reference poly-ε-caprolactone fiber scaffolds. The aligned dECM fiber scaffold promoted the fastest and most efficient lesion closure, indicating superior cell guiding capabilities of dECM-based scaffolds. The strategy of combining decellularized tissues with controlled deposition of fibers to optimize biochemical and topographical cues opens the way for clinically relevant central nervous system scaffolding solutions.
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Affiliation(s)
- Lena Mungenast
- Institute for Chemistry and Bioanalytics, University of Applied Sciences FHNW, Hofackerstrasse 30, Muttenz 4132, Switzerland
| | - Ronya Nieminen
- Institute for Chemistry and Bioanalytics, University of Applied Sciences FHNW, Hofackerstrasse 30, Muttenz 4132, Switzerland
| | - Carine Gaiser
- Institute for Chemistry and Bioanalytics, University of Applied Sciences FHNW, Hofackerstrasse 30, Muttenz 4132, Switzerland
| | - Ana Bela Faia-Torres
- Institute for Chemistry and Bioanalytics, University of Applied Sciences FHNW, Hofackerstrasse 30, Muttenz 4132, Switzerland
| | - Jürgen Rühe
- Department of Microsystems Engineering, IMTEK, University of Freiburg, Freiburg 79110, Germany
| | - Laura Suter-Dick
- Institute for Chemistry and Bioanalytics, University of Applied Sciences FHNW, Hofackerstrasse 30, Muttenz 4132, Switzerland
- SCAHT: Swiss Centre for Applied Human Toxicology, Missionsstrasse 64, Basel 4055, Switzerland
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Kim JT, Cho SM, Youn DH, Hong EP, Park CH, Lee Y, Jung H, Jeon JP. Therapeutic Effect of a Hydrogel-based Neural Stem Cell Delivery Sheet for Mild Traumatic Brain Injury. Acta Biomater 2023:S1742-7061(23)00351-3. [PMID: 37356785 DOI: 10.1016/j.actbio.2023.06.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 06/18/2023] [Accepted: 06/20/2023] [Indexed: 06/27/2023]
Abstract
OBJECTIVE There are no effective clinically applicable treatments for neuronal dysfunction after mild traumatic brain injury (TBI). Here, we evaluated the therapeutic effect of a new delivery method of mouse neural stem cell (mNSC) spheroids using a hydrogel, in terms of improvement in damaged cortical lesions and cognitive impairment after mild TBI. METHODS mNSCs were isolated from the subventricular zone and subgranular zone by a hydrogel-based culture system. GFP-transduced mNSCs were generated into spheroids and wrapped into a sheet for transplantation. Male C57BL/6J mice were randomly divided into four groups: sham operation, TBI, TBI with mNSC spheroids, and TBI with mNSC spheroid sheet transplantation covering the damaged cortex. Histopathological and immunohistochemical features and cognitive function were evaluated 7, 14, and 28 days after transplantation following TBI. RESULTS Hydrogel-based culture systems and mNSC isolation were successfully established from the adult mice. Essential transcription factors for NSCs, such as SOX2, PAX6, Olig2, nestin, and doublecortin (DCX), were highly expressed in the mNSCs. A transplanted hydrogel-based mNSC spheroid sheet showed good engraftment and survival ability, differentiated into TUJ1-positive neurons, promoted angiogenesis, and reduced neuronal degeneration. Also, TBI mice treated with mNSC spheroid sheet transplantation exhibited a significantly increased preference for a new object, suggesting improved cognitive function compared to the mNSC spheroids or no treatment groups. CONCLUSION Transplantation with a hydrogel-based mNSC spheroid sheet showed engraftment, migration, and stability of delivered cells in a hostile microenvironment after TBI, resulting in improved cognitive function via reconstruction of the damaged cortex. STATEMENT OF SIGNIFICANCE This study presents the therapeutic effect of a new delivery method of mouse neural stem cells spheroids using a hydrogel, in terms of improvement in damaged cortical lesions and cognitive impairment after traumatic brain injury. Collagen/fibrin hydrogel allowed long-term survival and migratory ability of NSCs spheroids. Furthermore, transplanted hydrogel-based mNSCs spheroids sheet showed good engraftment, migration, and stability of delivered cells in a hostile microenvironment, resulting in reconstruction of the damaged cortex and improved cognitive function after TBI. Therefore, we suggest that a hydrogel-based mNSCs spheroids sheet could help to improve cognitive impairment after TBI.
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Affiliation(s)
- Jong-Tae Kim
- Institute of New Frontier Research, Hallym University College of Medicine, Chuncheon, Korea
| | - Sung Min Cho
- Department of Neurosurgery, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Dong Hyuk Youn
- Institute of New Frontier Research, Hallym University College of Medicine, Chuncheon, Korea
| | - Eun Pyo Hong
- Institute of New Frontier Research, Hallym University College of Medicine, Chuncheon, Korea
| | - Chan Hum Park
- Institute of New Frontier Research, Hallym University College of Medicine, Chuncheon, Korea
| | - Younghyurk Lee
- Institute of New Frontier Research, Hallym University College of Medicine, Chuncheon, Korea
| | - Harry Jung
- Institute of New Frontier Research, Hallym University College of Medicine, Chuncheon, Korea
| | - Jin Pyeong Jeon
- Department of Neurosurgery, Hallym University College of Medicine, Chuncheon, Korea.
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Metabolic Glycoengineering: A Promising Strategy to Remodel Microenvironments for Regenerative Therapy. Stem Cells Int 2023; 2023:1655750. [PMID: 36814525 PMCID: PMC9940976 DOI: 10.1155/2023/1655750] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 09/27/2022] [Accepted: 01/17/2023] [Indexed: 02/15/2023] Open
Abstract
Cell-based regenerative therapy utilizes the differentiation potential of stem cells to rejuvenate tissues. But the dynamic fate of stem cells is calling for precise control to optimize their therapeutic efficiency. Stem cell fate is regulated by specific conditions called "microenvironments." Among the various factors in the microenvironment, the cell-surface glycan acts as a mediator of cell-matrix and cell-cell interactions and manipulates the behavior of cells. Herein, metabolic glycoengineering (MGE) is an easy but powerful technology for remodeling the structure of glycan. By presenting unnatural glycans on the surface, MGE provides us an opportunity to reshape the microenvironment and evoke desired cellular responses. In this review, we firstly focused on the determining role of glycans on cellular activity; then, we introduced how MGE influences glycosylation and subsequently affects cell fate; at last, we outlined the application of MGE in regenerative therapy, especially in the musculoskeletal system, and the future direction of MGE is discussed.
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10
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Wang B, Qinglai T, Yang Q, Li M, Zeng S, Yang X, Xiao Z, Tong X, Lei L, Li S. Functional acellular matrix for tissue repair. Mater Today Bio 2022; 18:100530. [PMID: 36601535 PMCID: PMC9806685 DOI: 10.1016/j.mtbio.2022.100530] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/23/2022] [Accepted: 12/26/2022] [Indexed: 12/29/2022]
Abstract
In view of their low immunogenicity, biomimetic internal environment, tissue- and organ-like physicochemical properties, and functionalization potential, decellularized extracellular matrix (dECM) materials attract considerable attention and are widely used in tissue engineering. This review describes the composition of extracellular matrices and their role in stem-cell differentiation, discusses the advantages and disadvantages of existing decellularization techniques, and presents methods for the functionalization and characterization of decellularized scaffolds. In addition, we discuss progress in the use of dECMs for cartilage, skin, nerve, and muscle repair and the transplantation or regeneration of different whole organs (e.g., kidneys, liver, uterus, lungs, and heart), summarize the shortcomings of using dECMs for tissue and organ repair after refunctionalization, and examine the corresponding future prospects. Thus, the present review helps to further systematize the application of functionalized dECMs in tissue/organ transplantation and keep researchers up to date on recent progress in dECM usage.
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Affiliation(s)
- Bin Wang
- Department of Otorhinolaryngology Head and Neck Surgery, The Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - Tang Qinglai
- Department of Otorhinolaryngology Head and Neck Surgery, The Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - Qian Yang
- Department of Otorhinolaryngology Head and Neck Surgery, The Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - Mengmeng Li
- Department of Otorhinolaryngology Head and Neck Surgery, The Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - Shiying Zeng
- Department of Otorhinolaryngology Head and Neck Surgery, The Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - Xinming Yang
- Department of Otorhinolaryngology Head and Neck Surgery, The Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - Zian Xiao
- Department of Otorhinolaryngology Head and Neck Surgery, The Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - Xinying Tong
- Department of Hemodialysis, The Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, China
| | - Lanjie Lei
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
- Corresponding author. State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
| | - Shisheng Li
- Department of Otorhinolaryngology Head and Neck Surgery, The Second Xiangya Hospital, Central South University, Changsha 410011, China
- Corresponding author. Department of Otorhinolaryngology Head and Neck Surgery, the Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, China.
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Shen Y, Cao X, Lu M, Gu H, Li M, Posner DA. Current treatments after spinal cord injury: Cell engineering, tissue engineering, and combined therapies. SMART MEDICINE 2022; 1:e20220017. [PMID: 39188731 PMCID: PMC11235943 DOI: 10.1002/smmd.20220017] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 10/20/2022] [Indexed: 08/28/2024]
Abstract
Both traumatic and non-traumatic spinal cord injuries (SCIs) can be categorized as damages done to our central nervous system (CNS). The patients' physical and mental health may suffer greatly because of traumatic SCI. With the widespread use of motor vehicles and increasingly aged population, the occurrence of SCI is more frequent than before, creating a considerable burden to global public health. The regeneration process of the spinal cord is hampered by a series of events that occur following SCI like edema, hemorrhage, formation of cystic cavities, and ischemia. An effective strategy for the treatment of SCI and functional recovery still has not been discovered; however, recent advances have been made in bioengineering fields that therapies based on cells, biomaterials, and biomolecules have proved effective in the repair of the spinal cord. In the light of worldwide importance of treatments for SCI, this article aims to provide a review of recent advances by first introducing the physiology, etiology, epidemiology, and mechanisms of SCI. We then put emphasis on the widely used clinical treatments and bioengineering strategies (cell-based, biomaterial-based, and biomolecule-based) for the functional regeneration of the spinal cord as well as challenges faced by scientists currently. This article provides scientists and clinicians with a comprehensive outlook on the recent advances of preclinical and clinical treatments of SCI, hoping to help them find keys to the functional regeneration of SCI.
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Affiliation(s)
- Yingbo Shen
- State Key Laboratory of BioelectronicsSchool of Biological Science and Medical EngineeringSoutheast UniversityNanjingChina
| | - Xinyue Cao
- State Key Laboratory of BioelectronicsSchool of Biological Science and Medical EngineeringSoutheast UniversityNanjingChina
| | - Minhui Lu
- State Key Laboratory of BioelectronicsSchool of Biological Science and Medical EngineeringSoutheast UniversityNanjingChina
| | - Hongcheng Gu
- State Key Laboratory of BioelectronicsSchool of Biological Science and Medical EngineeringSoutheast UniversityNanjingChina
| | - Minli Li
- State Key Laboratory of BioelectronicsSchool of Biological Science and Medical EngineeringSoutheast UniversityNanjingChina
| | - David A. Posner
- Molecular Immunity UnitCambridge Institute of Therapeutic Immunology and Infectious DiseasesDepartment of MedicineUniversity of CambridgeCambridgeUK
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Mungenast L, Züger F, Selvi J, Faia-Torres AB, Rühe J, Suter-Dick L, Gullo MR. Directional Submicrofiber Hydrogel Composite Scaffolds Supporting Neuron Differentiation and Enabling Neurite Alignment. Int J Mol Sci 2022; 23:ijms231911525. [PMID: 36232822 PMCID: PMC9569964 DOI: 10.3390/ijms231911525] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 09/12/2022] [Accepted: 09/26/2022] [Indexed: 11/16/2022] Open
Abstract
Cell cultures aiming at tissue regeneration benefit from scaffolds with physiologically relevant elastic moduli to optimally trigger cell attachment, proliferation and promote differentiation, guidance and tissue maturation. Complex scaffolds designed with guiding cues can mimic the anisotropic nature of neural tissues, such as spinal cord or brain, and recall the ability of human neural progenitor cells to differentiate and align. This work introduces a cost-efficient gelatin-based submicron patterned hydrogel–fiber composite with tuned stiffness, able to support cell attachment, differentiation and alignment of neurons derived from human progenitor cells. The enzymatically crosslinked gelatin-based hydrogels were generated with stiffnesses from 8 to 80 kPa, onto which poly(ε-caprolactone) (PCL) alignment cues were electrospun such that the fibers had a preferential alignment. The fiber–hydrogel composites with a modulus of about 20 kPa showed the strongest cell attachment and highest cell proliferation, rendering them an ideal differentiation support. Differentiated neurons aligned and bundled their neurites along the aligned PCL filaments, which is unique to this cell type on a fiber–hydrogel composite. This novel scaffold relies on robust and inexpensive technology and is suitable for neural tissue engineering where directional neuron alignment is required, such as in the spinal cord.
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Affiliation(s)
- Lena Mungenast
- Institute for Chemistry and Bioanalytics, University of Applied Sciences FHNW, Hofackerstrasse 30, 4132 Muttenz, Switzerland
- Correspondence: (L.M.); (M.R.G.)
| | - Fabian Züger
- Institute for Medical Engineering and Medical Informatics, University of Applied Sciences FHNW, Hofackerstrasse 30, 4132 Muttenz, Switzerland
| | - Jasmin Selvi
- Institute for Medical Engineering and Medical Informatics, University of Applied Sciences FHNW, Hofackerstrasse 30, 4132 Muttenz, Switzerland
| | - Ana Bela Faia-Torres
- Institute for Chemistry and Bioanalytics, University of Applied Sciences FHNW, Hofackerstrasse 30, 4132 Muttenz, Switzerland
| | - Jürgen Rühe
- Department of Microsystems Engineering, University of Freiburg–IMTEK, Georges-Koehler-Allee 103, 79110 Freiburg, Germany
| | - Laura Suter-Dick
- Institute for Chemistry and Bioanalytics, University of Applied Sciences FHNW, Hofackerstrasse 30, 4132 Muttenz, Switzerland
| | - Maurizio R. Gullo
- Institute for Medical Engineering and Medical Informatics, University of Applied Sciences FHNW, Hofackerstrasse 30, 4132 Muttenz, Switzerland
- Correspondence: (L.M.); (M.R.G.)
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Hu J, Shangguan J, Askar P, Xu J, Sun H, Zhou S, Zhu C, Su W, Gu Y. Decellularization alters the unfavorable regenerative adverse microenvironment of the injured spinal cord to support neurite outgrowth. ANNALS OF TRANSLATIONAL MEDICINE 2022; 10:934. [PMID: 36172103 PMCID: PMC9511201 DOI: 10.21037/atm-22-3969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 08/23/2022] [Indexed: 12/04/2022]
Abstract
Background Acellular tissue has been transplanted into the injury site as an external microenvironment to intervene with imbalance microenvironment that occurs after spinal cord injury (SCI) and stimulating axonal regeneration, although the mechanism is unclear. Given decellularization is the key means to obtain acellular tissues, we speculated changes in the internal components of tissue caused by decellularization may be the key reason why acellular tissues affect remodeling of the microenvironment. Methods Complete spinal cord crush in a mouse model was established, and the dynamic of extracellular matrix (ECM) expression and distribution during SCI was studied with immunohistochemistry (IHC). Normal spinal cord (NSC) and 14-day injury spinal cord (ISC) were obtained to prepare the decellularized NSC (DNSC) and decellularized ISC (DISC) through a well-designed decellularization method, and the decellularization effects were evaluated by residual DNA content determination, hematoxylin and eosin staining (H&E), and IHC. Rat dorsal root ganglia (DRG) were co-cultured with NSC, ISC, DNSC, and DISC to evaluate their effect on neurite outgrowth. Furthermore, the mechanisms by which decellularized tissue promotes axonal growth were explored with proteomics analysis of the protein components and function of 14-day ISC and DISC. Results We found the expression of the four main ECM components (collagen type I and IV, fibronectin, and laminin) gradually increased with the progression of SCI compared to NSC, peaking at 14 days of injury then slightly decreasing at 21 days, and the distribution of the four ECM proteins in the ISC also changed dynamically. H&E staining, residual DNA content determination, and IHC showed decellularization removed cellular components and preserved an intact ECM. The results of co-cultured DRG with NSCs, ISCs, DNSCs, and DISCs showed DNSCs and DISCs had a stronger ability in supporting neurite outgrowth than NSC and ISC. We found through proteomics that decellularization could remove proteins associated with inflammatory responses, scarring, and other pathological factors, while completely retaining the ECM proteins. Conclusions Taken together, our findings demonstrate decellularization can optimize the imbalanced microenvironment after SCI by removing components that inhibit spinal cord regeneration, providing a theoretical basis for clinical application of acellular tissue transplantation to repair SCI.
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Affiliation(s)
- Junxia Hu
- Jiangsu Key Laboratory of Neuroregeneration, Co-Innovation Center of Neuroregeneration, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Nantong University, Nantong, China
| | - Jianghong Shangguan
- Jiangsu Key Laboratory of Neuroregeneration, Co-Innovation Center of Neuroregeneration, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Nantong University, Nantong, China
| | - Parizat Askar
- Jiangsu Key Laboratory of Neuroregeneration, Co-Innovation Center of Neuroregeneration, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Nantong University, Nantong, China
| | - Jinghui Xu
- Jiangsu Key Laboratory of Neuroregeneration, Co-Innovation Center of Neuroregeneration, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Nantong University, Nantong, China
| | - Hualin Sun
- Jiangsu Key Laboratory of Neuroregeneration, Co-Innovation Center of Neuroregeneration, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Nantong University, Nantong, China
| | - Songlin Zhou
- Jiangsu Key Laboratory of Neuroregeneration, Co-Innovation Center of Neuroregeneration, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Nantong University, Nantong, China
| | - Changlai Zhu
- Jiangsu Key Laboratory of Neuroregeneration, Co-Innovation Center of Neuroregeneration, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Nantong University, Nantong, China
| | - Wenfeng Su
- Jiangsu Key Laboratory of Neuroregeneration, Co-Innovation Center of Neuroregeneration, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Nantong University, Nantong, China
| | - Yun Gu
- Jiangsu Key Laboratory of Neuroregeneration, Co-Innovation Center of Neuroregeneration, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Nantong University, Nantong, China
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Zhang X, Chen X, Hong H, Hu R, Liu J, Liu C. Decellularized extracellular matrix scaffolds: Recent trends and emerging strategies in tissue engineering. Bioact Mater 2022; 10:15-31. [PMID: 34901526 PMCID: PMC8637010 DOI: 10.1016/j.bioactmat.2021.09.014] [Citation(s) in RCA: 236] [Impact Index Per Article: 118.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 08/24/2021] [Accepted: 09/08/2021] [Indexed: 01/09/2023] Open
Abstract
The application of scaffolding materials is believed to hold enormous potential for tissue regeneration. Despite the widespread application and rapid advance of several tissue-engineered scaffolds such as natural and synthetic polymer-based scaffolds, they have limited repair capacity due to the difficulties in overcoming the immunogenicity, simulating in-vivo microenvironment, and performing mechanical or biochemical properties similar to native organs/tissues. Fortunately, the emergence of decellularized extracellular matrix (dECM) scaffolds provides an attractive way to overcome these hurdles, which mimic an optimal non-immune environment with native three-dimensional structures and various bioactive components. The consequent cell-seeded construct based on dECM scaffolds, especially stem cell-recellularized construct, is considered an ideal choice for regenerating functional organs/tissues. Herein, we review recent developments in dECM scaffolds and put forward perspectives accordingly, with particular focus on the concept and fabrication of decellularized scaffolds, as well as the application of decellularized scaffolds and their combinations with stem cells (recellularized scaffolds) in tissue engineering, including skin, bone, nerve, heart, along with lung, liver and kidney.
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Affiliation(s)
| | | | - Hua Hong
- Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Engineering Research Center for Biomaterials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, PR China
| | - Rubei Hu
- Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Engineering Research Center for Biomaterials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, PR China
| | - Jiashang Liu
- Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Engineering Research Center for Biomaterials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, PR China
| | - Changsheng Liu
- Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Engineering Research Center for Biomaterials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, PR China
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15
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Yuan T, Shao Y, Zhou X, Liu Q, Zhu Z, Zhou B, Dong Y, Stephanopoulos N, Gui S, Yan H, Liu D. Highly Permeable DNA Supramolecular Hydrogel Promotes Neurogenesis and Functional Recovery after Completely Transected Spinal Cord Injury. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2102428. [PMID: 34296471 DOI: 10.1002/adma.202102428] [Citation(s) in RCA: 73] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 07/01/2021] [Indexed: 06/13/2023]
Abstract
Regeneration after severe spinal cord injury cannot occur naturally in mammals. Transplanting stem cells to the injury site is a highly promising method, but it faces many challenges because it relies heavily on the microenvironment provided by both the lesion site and delivery material. Although mechanical properties, biocompatibility, and biodegradability of delivery materials have been extensively explored, their permeability has rarely been recognized. Here, a DNA hydrogel is designed with extremely high permeability to repair a 2 mm spinal cord gap in Sprague-Dawley rats. The rats recover basic hindlimb function with detectable motor-evoked potentials, and a renascent neural network is formed via the proliferation and differentiation of both implanted and endogenous stem cells. The signal at the lesion area is conveyed by, on average, 15 newly formed synapses. This hydrogel system offers great potential in clinical trials. Further, it should be easily adaptable to other tissue regeneration applications.
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Affiliation(s)
- Taoyang Yuan
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100071, China
- Beijing Neurosurgical Institute, Capital Medical University, Beijing, 100071, China
| | - Yu Shao
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Xu Zhou
- Center for Molecular Design and Biomimetics, The Biodesign Institute, School of Molecular Sciences, Arizona State University, Tempe, AZ, 85281, USA
| | - Qian Liu
- Beijing Neurosurgical Institute, Capital Medical University, Beijing, 100071, China
| | - Zhichao Zhu
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Bini Zhou
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Yuanchen Dong
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Nicholas Stephanopoulos
- Center for Molecular Design and Biomimetics, The Biodesign Institute, School of Molecular Sciences, Arizona State University, Tempe, AZ, 85281, USA
| | - Songbai Gui
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100071, China
| | - Hao Yan
- Center for Molecular Design and Biomimetics, The Biodesign Institute, School of Molecular Sciences, Arizona State University, Tempe, AZ, 85281, USA
| | - Dongsheng Liu
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, China
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16
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Ikegami Y, Ijima H. Decellularization of Nervous Tissues and Clinical Application. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1345:241-252. [PMID: 34582027 DOI: 10.1007/978-3-030-82735-9_19] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The nervous system is an ensemble of organs that transmit and process external information and are responsible for the adaption to the external environment and homeostasis control of the internal environment. The nervous system of vertebrates is divided into the central nervous system (CNS) and peripheral nervous system (PNS) due to its structural features. The CNS, which includes the brain and the spinal cord, processes information from external stimuli and assembles orders suitable for these stimuli. The CNS then sends signals to control other organs/tissues. On the other hand, the PNS connects the CNS to other organs/tissues and functions as a signal pathway. Therefore, the decline and loss of various functions due to injuries of the nervous system cause an impaired quality of life (QOL) and eventually the termination of life activities. Here, we report mainly on decellularized neural tissue and its application as a substrate for the regeneration of the nervous system.
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Affiliation(s)
- Yasuhiro Ikegami
- Department of Chemical Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Hiroyuki Ijima
- Department of Chemical Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan.
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Ma J, Huang C. Composition and Mechanism of Three-Dimensional Hydrogel System in Regulating Stem Cell Fate. TISSUE ENGINEERING. PART B, REVIEWS 2020; 26:498-518. [PMID: 32272868 DOI: 10.1089/ten.teb.2020.0021] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Three-dimensional (3D) hydrogel systems integrating different types of stem cells and scaffolding biomaterials have an important application in tissue engineering. The biomimetic hydrogels that pattern cell suspensions within 3D configurations of biomaterial networks allow for the transport of bioactive factors and mimic the stem cell niche in vivo, thereby supporting the proliferation and differentiation of stem cells. The composition of a 3D hydrogel system determines the physical and chemical characteristics that regulate stem cell function through a biological mechanism. Here, we discuss the natural and synthetic hydrogel compositions that have been employed in 3D scaffolding, focusing on their characteristics, fabrication, biocompatibility, and regulatory effects on stem cell proliferation and differentiation. We also discuss the regulatory mechanisms of cell-matrix interaction and cell-cell interaction in stem cell activities in various types of 3D hydrogel systems. Understanding hydrogel compositions and their cellular mechanisms can yield insights into how scaffolding biomaterials and stem cells interact and can lead to the development of novel hydrogel systems of stem cells in tissue engineering and stem cell-based regenerative medicine. Impact statement Three-dimensional hydrogel system of stem cell mimicking the stemcell niche holds significant promise in tissue engineering and regenerative medicine. Exactly how hydrogel composition regulates stem cell fate is not well understood. This review focuses on the composition of hydrogel, and how the hydrogel composition and its properties regulate the stem cell adhesion, growth, and differentiation. We propose that cell-matrix interaction and cell-cell interaction are important regulatory mechanisms in stem cell activities. Our review provides key insights into how the hydrogel composition regulates the stem cell fate, untangling the engineering of three-dimensional hydrogel systems for stem cells.
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Affiliation(s)
- Jianrui Ma
- Center for Neurobiology, Shantou University Medical College, Shantou, China
| | - Chengyang Huang
- Center for Neurobiology, Shantou University Medical College, Shantou, China
- Department of Biological Chemistry, Eli and Edythe Broad Center for Regenerative Medicine and Stem Cell Research, David Geffen School of Medicine, University of California at Los Angeles (UCLA), Los Angeles, California, USA
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18
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Abbas WA, Ibrahim ME, El-Naggar M, Abass WA, Abdullah IH, Awad BI, Allam NK. Recent Advances in the Regenerative Approaches for Traumatic Spinal Cord Injury: Materials Perspective. ACS Biomater Sci Eng 2020; 6:6490-6509. [PMID: 33320628 DOI: 10.1021/acsbiomaterials.0c01074] [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] [Indexed: 12/12/2022]
Abstract
Spinal cord injury (SCI) is a devastating health condition that may lead to permanent disabilities and death. Understanding the pathophysiological perspectives of traumatic SCI is essential to define mechanisms that can help in designing recovery strategies. Since central nervous system tissues are notorious for their deficient ability to heal, efforts have been made to identify solutions to aid in restoration of the spinal cord tissues and thus its function. The two main approaches proposed to address this issue are neuroprotection and neuro-regeneration. Neuroprotection involves administering drugs to restore the injured microenvironment to normal after SCI. As for the neuro-regeneration approach, it focuses on axonal sprouting for functional recovery of the injured neural tissues and damaged axons. Despite the progress made in the field, neural regeneration treatment after SCI is still unsatisfactory owing to the disorganized way of axonal growth and extension. Nanomedicine and tissue engineering are considered promising therapeutic approaches that enhance axonal growth and directionality through implanting or injecting of the biomaterial scaffolds. One of these recent approaches is nanofibrous scaffolds that are used to provide physical support to maintain directional axonal growth in the lesion site. Furthermore, these preferable tissue-engineered substrates can afford axonal regeneration by mimicking the extracellular matrix of the neural tissues in terms of biological, chemical, and architectural characteristics. In this review, we discuss the regenerative approach using nanofibrous scaffolds with a focus on their fabrication methods and their properties that define their functionality performed to heal the neural tissue efficiently.
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Affiliation(s)
- Walaa A Abbas
- Energy Materials Laboratory, School of Sciences and Engineering, The American University in Cairo, New Cairo 11835, Egypt
| | - Maha E Ibrahim
- Department of Physical Medicine, Rheumatology and Rehabilitation, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
| | - Manar El-Naggar
- Energy Materials Laboratory, School of Sciences and Engineering, The American University in Cairo, New Cairo 11835, Egypt
| | - Wessam A Abass
- Center of Sustainable Development, School of Sciences and Engineering, The American University in Cairo, New Cairo 11835, Egypt
| | - Ibrahim H Abdullah
- Energy Materials Laboratory, School of Sciences and Engineering, The American University in Cairo, New Cairo 11835, Egypt
| | - Basem I Awad
- Mansoura Experimental Research Center (MERC), Department of Neurological Surgery, School of Medicine, Mansoura University, Mansoura, Egypt
| | - Nageh K Allam
- Energy Materials Laboratory, School of Sciences and Engineering, The American University in Cairo, New Cairo 11835, Egypt
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Xie L, Ouyang C, Ji J, Wu J, Dong X, Hou C, Huang T. Construction of bioengineered corneal stromal implants using an allogeneic cornea-derived matrix. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 120:111673. [PMID: 33545838 DOI: 10.1016/j.msec.2020.111673] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 10/08/2020] [Accepted: 10/20/2020] [Indexed: 01/12/2023]
Abstract
The bioengineering of corneal scaffolds that mimic native human cornea has attracted interest owing to the scarcity of donor corneas for the transplantation-based treatment of corneal blindness. However, an optimally engineered corneal tissue for clinical use has yet to emerge. Herein, human corneal tissues discarded during allogeneic corneal transplantation surgery were used to construct allogeneic cornea-derived matrix (ACM) scaffolds with favorable optical properties and structural strength. During scaffold fabrication, collagen and glycosaminoglycan levels were well preserved, while DNA decreased significantly. Scanning electron microscopy revealed the presence of fiber-like structures on the scaffold surface and specific structures featuring multiple interlaced lamellae in cross-sections. Moreover, corneal epithelial cells grown on the ACM formed a continuous multi-stratified epithelium with a strong expression of the corneal epithelial differentiation marker CK3/12, gap junction marker Connexin43, and stem-cell-specific marker p63α, while corneal stromal cells expressed the keratocyte-specific marker KERA and the adhesion marker integrin β1. When the ACM was implanted into rabbit corneal stromal pockets, the rabbit cornea remained transparent throughout the follow-up period. These results indicate that the construction of corneal stromal implants from discarded human corneal tissues may pave the way for the generation of high-quality corneal tissue for transplantation.
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Affiliation(s)
- Lijie Xie
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, Guangdong 510060, PR China
| | - Chen Ouyang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, Guangdong 510060, PR China
| | - Jianping Ji
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, Guangdong 510060, PR China
| | - Jing Wu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, Guangdong 510060, PR China
| | - Xiaojuan Dong
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, Guangdong 510060, PR China
| | - Chao Hou
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, Guangdong 510060, PR China
| | - Ting Huang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, Guangdong 510060, PR China.
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Gong Z, Lei D, Wang C, Yu C, Xia K, Shu J, Ying L, Du J, Wang J, Huang X, Ni L, Wang C, Lin J, Li F, You Z, Liang C. Bioactive Elastic Scaffolds Loaded with Neural Stem Cells Promote Rapid Spinal Cord Regeneration. ACS Biomater Sci Eng 2020; 6:6331-6343. [PMID: 33449647 DOI: 10.1021/acsbiomaterials.0c01057] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Despite decades of research, spinal cord injury (SCI) still causes irreparable damage to the human body. Key challenges that hinder the regeneration and extension of neurons following SCI must be overcome, including the overexpressed glial scar formation and strong inflammatory responses in lesion tissue. Transplantation of neural stem cells (NSCs) represents a promising therapeutic method due to its beneficial roles like growth factor secretion and anti-inflammation. However, NSCs usually differentiate into astrocytes, which is considered as one potential limitation of current NSC therapy. Herein, we fabricate an elastic poly(sebacoyl diglyceride) (PSeD) scaffold to mimic the mechanical properties of the natural spinal cord. The PSeD scaffold is coated with poly(sebacoyl diglyceride)-isoleucine-lysine-valine-alanine-valine-serine (PSeD-IKVAVS) to create a bioactive interface. The core point of this topic is divided into two parts. First, PSeD is a bioelastomer and its mechanical properties are similar to those of the natural spinal cord. This feature reduces the direct stimulation to the spinal cord tissue by the elastomer and then reduces the immune response or resistance caused by the host spinal cord tissue. Second, the IKVAVS peptide modifies PSeD to create a bioactive interface to support NSC growth and differentiation. In the in vivo study, the number of CD68-positive macrophages decreased in the PSeD-IKVAVS/NSC group compared to that in the SCI group (20% vs 60%). The low inflammation induced by the scaffold was beneficial to NSCs, resulting in increased locomotor recovery, as indicated by the increased Basso-Beattie-Bresnahan score (5, the average score in the PSeD-IKVAVS/NSC group, vs 2, the average score in the SCI group). Based on the above two characteristics, a PSeD-IKVAVS bioelastomer is fabricated, which provides a beneficial and bioactive microenvironment for NSCs after transplantation.
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Affiliation(s)
- Zhe Gong
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, #88 Jie Fang Road, Hangzhou, 310009 Zhejiang, PR China.,Orthopedics Research Institute of Zhejiang University, No. 88, Jiefang Road, Hangzhou 310009, China
| | - Dong Lei
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Belt and Road Joint Laboratory of Advanced fiber and Low-dimension Materials (Donghua University), College of Materials Science and Engineering, Donghua University, 2999 North Renmin Road, Shanghai 201620, China
| | - Chenggui Wang
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, #88 Jie Fang Road, Hangzhou, 310009 Zhejiang, PR China.,Orthopedics Research Institute of Zhejiang University, No. 88, Jiefang Road, Hangzhou 310009, China
| | - Chao Yu
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, #88 Jie Fang Road, Hangzhou, 310009 Zhejiang, PR China.,Orthopedics Research Institute of Zhejiang University, No. 88, Jiefang Road, Hangzhou 310009, China
| | - Kaishun Xia
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, #88 Jie Fang Road, Hangzhou, 310009 Zhejiang, PR China.,Orthopedics Research Institute of Zhejiang University, No. 88, Jiefang Road, Hangzhou 310009, China
| | - Jiawei Shu
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, #88 Jie Fang Road, Hangzhou, 310009 Zhejiang, PR China.,Orthopedics Research Institute of Zhejiang University, No. 88, Jiefang Road, Hangzhou 310009, China
| | - Liwei Ying
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, #88 Jie Fang Road, Hangzhou, 310009 Zhejiang, PR China.,Orthopedics Research Institute of Zhejiang University, No. 88, Jiefang Road, Hangzhou 310009, China
| | - Jiangnan Du
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, #88 Jie Fang Road, Hangzhou, 310009 Zhejiang, PR China.,Orthopedics Research Institute of Zhejiang University, No. 88, Jiefang Road, Hangzhou 310009, China
| | - Jingkai Wang
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, #88 Jie Fang Road, Hangzhou, 310009 Zhejiang, PR China.,Orthopedics Research Institute of Zhejiang University, No. 88, Jiefang Road, Hangzhou 310009, China
| | - Xianpeng Huang
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, #88 Jie Fang Road, Hangzhou, 310009 Zhejiang, PR China.,Orthopedics Research Institute of Zhejiang University, No. 88, Jiefang Road, Hangzhou 310009, China
| | - Licheng Ni
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, #88 Jie Fang Road, Hangzhou, 310009 Zhejiang, PR China.,Orthopedics Research Institute of Zhejiang University, No. 88, Jiefang Road, Hangzhou 310009, China
| | - Cong Wang
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, #88 Jie Fang Road, Hangzhou, 310009 Zhejiang, PR China.,Orthopedics Research Institute of Zhejiang University, No. 88, Jiefang Road, Hangzhou 310009, China
| | - Jingquan Lin
- Department of Neurosurgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, China
| | - Fangcai Li
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, #88 Jie Fang Road, Hangzhou, 310009 Zhejiang, PR China.,Orthopedics Research Institute of Zhejiang University, No. 88, Jiefang Road, Hangzhou 310009, China
| | - Zhengwei You
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Belt and Road Joint Laboratory of Advanced fiber and Low-dimension Materials (Donghua University), College of Materials Science and Engineering, Donghua University, 2999 North Renmin Road, Shanghai 201620, China
| | - Chengzhen Liang
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, #88 Jie Fang Road, Hangzhou, 310009 Zhejiang, PR China.,Orthopedics Research Institute of Zhejiang University, No. 88, Jiefang Road, Hangzhou 310009, China
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21
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A Bibliometric Review of Artificial Extracellular Matrices Based on Tissue Engineering Technology Literature: 1990 through 2019. MATERIALS 2020; 13:ma13132891. [PMID: 32605069 PMCID: PMC7372414 DOI: 10.3390/ma13132891] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 06/23/2020] [Accepted: 06/24/2020] [Indexed: 01/06/2023]
Abstract
Artificial extracellular matrices (aECMs) are an extension of biomaterials that were developed as in-vitro model environments for tissue cells that mimic the native in vivo target tissues’ structure. This bibliometric analysis evaluated the research productivity regarding aECM based on tissue engineering technology. The Web of Science citation index was examined for articles published from 1990 through 2019 using three distinct aECM-related topic sets. Data were also visualized using network analyses (VOSviewer). Terms related to in-vitro, scaffolds, collagen, hydrogels, and differentiation were reoccurring in the aECM-related literature over time. Publications with terms related to a clinical direction (wound healing, stem cells, artificial skin, in-vivo, and bone regeneration) have steadily increased, as have the number of countries and institutions involved in the artificial extracellular matrix. As progress with 3D scaffolds continues to advance, it will become the most promising technology to provide a therapeutic option to repair or replace damaged tissue.
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Yang B, Zhang F, Cheng F, Ying L, Wang C, Shi K, Wang J, Xia K, Gong Z, Huang X, Yu C, Li F, Liang C, Chen Q. Strategies and prospects of effective neural circuits reconstruction after spinal cord injury. Cell Death Dis 2020; 11:439. [PMID: 32513969 PMCID: PMC7280216 DOI: 10.1038/s41419-020-2620-z] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 05/16/2020] [Accepted: 05/18/2020] [Indexed: 02/06/2023]
Abstract
Due to the disconnection of surviving neural elements after spinal cord injury (SCI), such patients had to suffer irreversible loss of motor or sensory function, and thereafter enormous economic and emotional burdens were brought to society and family. Despite many strategies being dealing with SCI, there is still no effective regenerative therapy. To date, significant progress has been made in studies of SCI repair strategies, including gene regulation of neural regeneration, cell or cell-derived exosomes and growth factors transplantation, repair of biomaterials, and neural signal stimulation. The pathophysiology of SCI is complex and multifaceted, and its mechanisms and processes are incompletely understood. Thus, combinatorial therapies have been demonstrated to be more effective, and lead to better neural circuits reconstruction and functional recovery. Combinations of biomaterials, stem cells, growth factors, drugs, and exosomes have been widely developed. However, simply achieving axon regeneration will not spontaneously lead to meaningful functional recovery. Therefore, the formation and remodeling of functional neural circuits also depend on rehabilitation exercises, such as exercise training, electrical stimulation (ES) and Brain-Computer Interfaces (BCIs). In this review, we summarize the recent progress in biological and engineering strategies for reconstructing neural circuits and promoting functional recovery after SCI, and emphasize current challenges and future directions.
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Affiliation(s)
- Biao Yang
- Department of Orthopedics Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, 310009, Hangzhou, Zhejiang, China
- Zhejiang Key Laboratory of Bone and Joint Precision and Department of Orthopedics Research Institute of Zhejiang University, Hangzhou, Zhejiang, 310009, China
| | - Feng Zhang
- Department of Orthopedics Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, 310009, Hangzhou, Zhejiang, China
- Zhejiang Key Laboratory of Bone and Joint Precision and Department of Orthopedics Research Institute of Zhejiang University, Hangzhou, Zhejiang, 310009, China
| | - Feng Cheng
- Department of Orthopedics Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, 310009, Hangzhou, Zhejiang, China
- Zhejiang Key Laboratory of Bone and Joint Precision and Department of Orthopedics Research Institute of Zhejiang University, Hangzhou, Zhejiang, 310009, China
| | - Liwei Ying
- Department of Orthopedics Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, 310009, Hangzhou, Zhejiang, China
- Zhejiang Key Laboratory of Bone and Joint Precision and Department of Orthopedics Research Institute of Zhejiang University, Hangzhou, Zhejiang, 310009, China
| | - Chenggui Wang
- Department of Orthopedics Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, 310009, Hangzhou, Zhejiang, China
- Zhejiang Key Laboratory of Bone and Joint Precision and Department of Orthopedics Research Institute of Zhejiang University, Hangzhou, Zhejiang, 310009, China
| | - Kesi Shi
- Department of Orthopedics Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, 310009, Hangzhou, Zhejiang, China
- Zhejiang Key Laboratory of Bone and Joint Precision and Department of Orthopedics Research Institute of Zhejiang University, Hangzhou, Zhejiang, 310009, China
| | - Jingkai Wang
- Department of Orthopedics Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, 310009, Hangzhou, Zhejiang, China
- Zhejiang Key Laboratory of Bone and Joint Precision and Department of Orthopedics Research Institute of Zhejiang University, Hangzhou, Zhejiang, 310009, China
| | - Kaishun Xia
- Department of Orthopedics Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, 310009, Hangzhou, Zhejiang, China
- Zhejiang Key Laboratory of Bone and Joint Precision and Department of Orthopedics Research Institute of Zhejiang University, Hangzhou, Zhejiang, 310009, China
| | - Zhe Gong
- Department of Orthopedics Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, 310009, Hangzhou, Zhejiang, China
- Zhejiang Key Laboratory of Bone and Joint Precision and Department of Orthopedics Research Institute of Zhejiang University, Hangzhou, Zhejiang, 310009, China
| | - Xianpeng Huang
- Department of Orthopedics Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, 310009, Hangzhou, Zhejiang, China
- Zhejiang Key Laboratory of Bone and Joint Precision and Department of Orthopedics Research Institute of Zhejiang University, Hangzhou, Zhejiang, 310009, China
| | - Cao Yu
- Department of Orthopedics Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, 310009, Hangzhou, Zhejiang, China
- Zhejiang Key Laboratory of Bone and Joint Precision and Department of Orthopedics Research Institute of Zhejiang University, Hangzhou, Zhejiang, 310009, China
| | - Fangcai Li
- Department of Orthopedics Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, 310009, Hangzhou, Zhejiang, China.
- Zhejiang Key Laboratory of Bone and Joint Precision and Department of Orthopedics Research Institute of Zhejiang University, Hangzhou, Zhejiang, 310009, China.
| | - Chengzhen Liang
- Department of Orthopedics Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, 310009, Hangzhou, Zhejiang, China.
- Zhejiang Key Laboratory of Bone and Joint Precision and Department of Orthopedics Research Institute of Zhejiang University, Hangzhou, Zhejiang, 310009, China.
| | - Qixin Chen
- Department of Orthopedics Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, 310009, Hangzhou, Zhejiang, China.
- Zhejiang Key Laboratory of Bone and Joint Precision and Department of Orthopedics Research Institute of Zhejiang University, Hangzhou, Zhejiang, 310009, China.
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Morgado PI, Palacios M, Larrain J. In situ injectable hydrogels for spinal cord regeneration: advances from the last 10 years. Biomed Phys Eng Express 2019; 6:012002. [PMID: 33438588 DOI: 10.1088/2057-1976/ab52e8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Spinal cord injury (SCI) is a tremendously devastating disorder with no effective therapy. Neuroprotective strategies have been applied aiming to prevent secondary cell death but no successful and robust effects have been observed. Recently, combinatorial approaches using biomaterials with cells and/or growth factors have demonstrated promising therapeutic effects because of the improvement of axonal growth and in vivo functional recovery in model organisms. In situ injectable hydrogels are a particularly attractive neuroregenerative approach to improve spinal cord repair and regeneration since they can be precisely injected into the lesion site filling the space prior to gelification, decrease scarring and promote axon growth due to the hydrogel's soft structure. Important advances regarding the use of hydrogels as potential therapeutic approaches has been reported during the last 10 years. Injectable alginate hydrogel loaded with GDNF, thermoresponsives heparin-poloxamer loaded with NGF and imidazole-poly(organophosphazenes) hydrogels are just three examples of biomaterials that can promote neurite, axon growth and improve functional recovery in hemisected and resected rats. Here we will review the status of in situ injectable hydrogels for spinal cord regeneration with special focus in the advantages of using hydrogel scaffolds, the ideal polymers to be used, the gelification process and the cells or growth factors combined. The in vitro and in vivo results reported for those biomaterials will be presented, compared and discussed.
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Zhang Q, Shi B, Ding J, Yan L, Thawani JP, Fu C, Chen X. Polymer scaffolds facilitate spinal cord injury repair. Acta Biomater 2019; 88:57-77. [PMID: 30710714 DOI: 10.1016/j.actbio.2019.01.056] [Citation(s) in RCA: 87] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 01/10/2019] [Accepted: 01/28/2019] [Indexed: 12/23/2022]
Abstract
During the past decades, improving patient neurological recovery following spinal cord injury (SCI) has remained a challenge. An effective treatment for SCI would not only reduce fractured elements and isolate developing local glial scars to promote axonal regeneration but also ameliorate secondary effects, including inflammation, apoptosis, and necrosis. Three-dimensional (3D) scaffolds provide a platform in which these mechanisms can be addressed in a controlled manner. Polymer scaffolds with favorable biocompatibility and appropriate mechanical properties have been engineered to minimize cicatrization, customize drug release, and ensure an unobstructed space to promote cell growth and differentiation. These properties make polymer scaffolds an important potential therapeutic platform. This review highlights the recent developments in polymer scaffolds for SCI engineering. STATEMENT OF SIGNIFICANCE: How to improve the efficacy of neurological recovery after spinal cord injury (SCI) is always a challenge. Tissue engineering provides a promising strategy for SCI repair, and scaffolds are one of the most important elements in addition to cells and inducing factors. The review highlights recent development and future prospects in polymer scaffolds for SCI therapy. The review will guide future studies by outlining the requirements and characteristics of polymer scaffold technologies employed against SCI. Additionally, the peculiar properties of polymer materials used in the therapeutic process of SCI also have guiding significance to other tissue engineering approaches.
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25
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Modulation of cell-cell interactions for neural tissue engineering: Potential therapeutic applications of cell adhesion molecules in nerve regeneration. Biomaterials 2019; 197:327-344. [DOI: 10.1016/j.biomaterials.2019.01.030] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 12/08/2018] [Accepted: 01/20/2019] [Indexed: 12/21/2022]
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26
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Joung D, Truong V, Neitzke CC, Guo SZ, Walsh PJ, Monat JR, Meng F, Park SH, Dutton JR, Parr AM, McAlpine MC. 3D Printed Stem-Cell Derived Neural Progenitors Generate Spinal Cord Scaffolds. ADVANCED FUNCTIONAL MATERIALS 2018; 28:1801850. [PMID: 32595422 PMCID: PMC7319181 DOI: 10.1002/adfm.201801850] [Citation(s) in RCA: 133] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Indexed: 05/03/2023]
Abstract
A bioengineered spinal cord is fabricated via extrusion-based multi-material 3D bioprinting, in which clusters of induced pluripotent stem cell (iPSC)-derived spinal neuronal progenitor cells (sNPCs) and oligodendrocyte progenitor cells (OPCs) are placed in precise positions within 3D printed biocompatible scaffolds during assembly. The location of a cluster of cells, of a single type or multiple types, is controlled using a point-dispensing printing method with a 200 μm center-to-center spacing within 150 μm wide channels. The bioprinted sNPCs differentiate and extend axons throughout microscale scaffold channels, and the activity of these neuronal networks is confirmed by physiological spontaneous calcium flux studies. Successful bioprinting of OPCs in combination with sNPCs demonstrates a multicellular neural tissue engineering approach, where the ability to direct the patterning and combination of transplanted neuronal and glial cells can be beneficial in rebuilding functional axonal connections across areas of central nervous system (CNS) tissue damage. This platform can be used to prepare novel biomimetic, hydrogel-based scaffolds modeling complex CNS tissue architecture in vitro and harnessed to develop new clinical approaches to treat neurological diseases, including spinal cord injury.
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Affiliation(s)
- Daeha Joung
- Department of Mechanical Engineering, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - Vincent Truong
- Department of Neurosurgery, Stem Cell Institute, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Colin C. Neitzke
- Department of Neurosurgery, Stem Cell Institute, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Shuang-Zhuang Guo
- Department of Mechanical Engineering, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - Patrick J. Walsh
- Department of Neurosurgery, Stem Cell Institute, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Joseph R. Monat
- Department of Mechanical Engineering, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - Fanben Meng
- Department of Mechanical Engineering, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - Sung Hyun Park
- Department of Mechanical Engineering, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - James R. Dutton
- Stem Cell Institute, Department of Genetics, Cell Biology and Development, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Ann M. Parr
- Department of Neurosurgery, Stem Cell Institute, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Michael C. McAlpine
- Department of Mechanical Engineering, University of Minnesota, Minneapolis, Minnesota 55455, USA
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Tian T, Yu Z, Zhang N, Chang Y, Zhang Y, Zhang L, Zhou S, Zhang C, Feng G, Huang F. Modified acellular nerve-delivering PMSCs improve functional recovery in rats after complete spinal cord transection. Biomater Sci 2018; 5:2480-2492. [PMID: 29106428 DOI: 10.1039/c7bm00485k] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Due to the poor regeneration capacity of neurons and the inhibitory microenvironment, spontaneous regeneration in spinal cord injury (SCI) remains challenging. Tissue engineering is considered a promising approach for enhancing the regeneration of SCI by reconstructing the inherent structure and improving the microenvironment. In this study, the possibility of engineering a nerve complex, which is constructed by acellular nerve delivering placenta mesenchymal stem cells (PMSCs), was assessed for the recovery of a transected spinal cord. Modified acellular nerve grafts were developed, and PMSCs labeled with green fluorescent protein (GFP) were seeded on the graft to construct the engineered nerve complex. Then, the engineered nerve complex was implanted into a 2 mm-length transected gap of the spinal cord. Four weeks after the transplantation, numerous surviving PMSCs were observed in the lesion cavity by immunofluorescence staining. Moreover, co-localization between GFP and neurofilament-200 (NF200) and Neuronal Class III β-Tubulin (Tuj1) was observed at the bridge interface. The PMSCs-graft group exhibited significant function improvement as evaluated by the Basso, Beattie and Bresnahan (BBB) locomotion score and footprint analysis. Eight weeks after surgery, the evoked response was restored in the PMSCs-graft group and numerous thick myelin sheathes were observed compared to that in the control groups. Collectively, our findings suggest that the nerve complex prepared by acellular nerve delivering PMSCs enhanced the structure and function regeneration of the spinal cord after SCI.
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Affiliation(s)
- Ting Tian
- Institute of Human Anatomy and Histology and Embryology, Otology & Neuroscience Center, Binzhou Medical University, 346 Guanhai Road, Laishan District, Shandong Province 264003, China.
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28
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Vafaei S, Tabaei SR, Guneta V, Choong C, Cho NJ. Hybrid Biomimetic Interfaces Integrating Supported Lipid Bilayers with Decellularized Extracellular Matrix Components. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:3507-3516. [PMID: 29489371 DOI: 10.1021/acs.langmuir.7b03265] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
This paper describes the functionalization of solid supported phospholipid bilayer with decellularized extracellular matrix (dECM) components, toward the development of biomimetic platforms that more closely mimic the cell surface environment. The dECM was obtained through a combination of chemical and enzymatic treatments of mouse adipose tissue that contains collagen, fibronectin, and glycosaminoglycans (GAGs). Using amine coupling chemistry, the dECM components were attached covalently to the surface of a supported lipid bilayer containing phospholipids with reactive carboxylic acid headgroups. The bilayer formation and the kinetics of subsequent dECM conjugation were monitored by quartz crystal microbalance with dissipation (QCM-D). Fluorescence recovery after photobleaching (FRAP) confirmed the fluidity of the membrane after functionalization with dECM. The resulting hybrid biomimetic interface supports the attachment and survival of the human hepatocyte Huh 7.5 and maintains the representative hepatocellular function. Importantly, the platform is suitable for monitoring the lateral organization and clustering of cell-binding ligands and growth factor receptors in the presence of the rich biochemical profile of tissue-derived ECM components.
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Affiliation(s)
- Setareh Vafaei
- School of Materials Science and Engineering , Nanyang Technological University , 50 Nanyang Avenue , 639798 Singapore
- Centre for Biomimetic Sensor Science , Nanyang Technological University , 50 Nanyang Drive , 637553 Singapore
| | - Seyed R Tabaei
- School of Materials Science and Engineering , Nanyang Technological University , 50 Nanyang Avenue , 639798 Singapore
- Centre for Biomimetic Sensor Science , Nanyang Technological University , 50 Nanyang Drive , 637553 Singapore
| | - Vipra Guneta
- School of Materials Science and Engineering , Nanyang Technological University , 50 Nanyang Avenue , 639798 Singapore
| | - Cleo Choong
- School of Materials Science and Engineering , Nanyang Technological University , 50 Nanyang Avenue , 639798 Singapore
- KK Research Centre , KK Women's and Children's Hospital , 100 Bukit Timah Road , 229899 Singapore
| | - Nam-Joon Cho
- School of Materials Science and Engineering , Nanyang Technological University , 50 Nanyang Avenue , 639798 Singapore
- Centre for Biomimetic Sensor Science , Nanyang Technological University , 50 Nanyang Drive , 637553 Singapore
- School of Chemical and Biomedical Engineering , Nanyang Technological University , 62 Nanyang Drive , 637459 Singapore
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Liu S, Schackel T, Weidner N, Puttagunta R. Biomaterial-Supported Cell Transplantation Treatments for Spinal Cord Injury: Challenges and Perspectives. Front Cell Neurosci 2018; 11:430. [PMID: 29375316 PMCID: PMC5768640 DOI: 10.3389/fncel.2017.00430] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Accepted: 12/20/2017] [Indexed: 12/17/2022] Open
Abstract
Spinal cord injury (SCI), resulting in para- and tetraplegia caused by the partial or complete disruption of descending motor and ascending sensory neurons, represents a complex neurological condition that remains incurable. Following SCI, numerous obstacles comprising of the loss of neural tissue (neurons, astrocytes, and oligodendrocytes), formation of a cavity, inflammation, loss of neuronal circuitry and function must be overcome. Given the multifaceted primary and secondary injury events that occur with SCI treatment options are likely to require combinatorial therapies. While several methods have been explored, only the intersection of two, cell transplantation and biomaterial implantation, will be addressed in detail here. Owing to the constant advance of cell culture technologies, cell-based transplantation has come to the forefront of SCI treatment in order to replace/protect damaged tissue and provide physical as well as trophic support for axonal regrowth. Biomaterial scaffolds provide cells with a protected environment from the surrounding lesion, in addition to bridging extensive damage and providing physical and directional support for axonal regrowth. Moreover, in this combinatorial approach cell transplantation improves scaffold integration and therefore regenerative growth potential. Here, we review the advances in combinatorial therapies of Schwann cells (SCs), astrocytes, olfactory ensheathing cells (OECs), mesenchymal stem cells, as well as neural stem and progenitor cells (NSPCs) with various biomaterial scaffolds.
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Affiliation(s)
- Shengwen Liu
- Spinal Cord Injury Center, Heidelberg University Hospital, Heidelberg, Germany
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Thomas Schackel
- Spinal Cord Injury Center, Heidelberg University Hospital, Heidelberg, Germany
| | - Norbert Weidner
- Spinal Cord Injury Center, Heidelberg University Hospital, Heidelberg, Germany
| | - Radhika Puttagunta
- Spinal Cord Injury Center, Heidelberg University Hospital, Heidelberg, Germany
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30
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Prospects of Natural Polymeric Scaffolds in Peripheral Nerve Tissue-Regeneration. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1077:501-525. [DOI: 10.1007/978-981-13-0947-2_27] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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31
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Libro R, Bramanti P, Mazzon E. The combined strategy of mesenchymal stem cells and tissue-engineered scaffolds for spinal cord injury regeneration. Exp Ther Med 2017; 14:3355-3368. [PMID: 29042919 PMCID: PMC5639409 DOI: 10.3892/etm.2017.4939] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Accepted: 08/03/2017] [Indexed: 01/02/2023] Open
Abstract
Spinal cord injury (SCI) is a traumatic lesion that can result in the loss of motor or sensory neurons. Stem cell (SC)-based therapies have been demonstrated to promote neuronal regeneration following SCI, by releasing a range of trophic factors that support endogenous repair or by differentiating into neurons, or glial cells in order to replace the damaged cells. However, numerous limitations remain for therapies based on SC transplantion alone, including a low rate of survival/engraftment. Nevertheless, scaffolds are 3-dimentional substrates that have revealed to support cell survival, proliferation and differentiation in vivo, by mimicking a more favorable endogenous microenvironment. A multidisciplinary approach, which combines engineered scaffolds with SCs has been proposed as a promising strategy for encouraging spinal cord regeneration. The present review has focused on the regenerative potential of mesenchymal SCs isolated from different sources and combined with various scaffold types, in preclinical and clinical SCI studies.
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Affiliation(s)
- Rosaliana Libro
- Department of Experimental Neurology, IRCCS Centro Neurolesi ‘Bonino-Pulejo’, I-98124 Messina, Italy
| | - Placido Bramanti
- Department of Experimental Neurology, IRCCS Centro Neurolesi ‘Bonino-Pulejo’, I-98124 Messina, Italy
| | - Emanuela Mazzon
- Department of Experimental Neurology, IRCCS Centro Neurolesi ‘Bonino-Pulejo’, I-98124 Messina, Italy
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32
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Turner NJ, Johnson SA, Foster LJR, Badylak SF. Sutureless nerve repair with ECM bioscaffolds and laser-activated chitosan adhesive. J Biomed Mater Res B Appl Biomater 2017; 106:1698-1711. [DOI: 10.1002/jbm.b.33975] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Revised: 06/21/2017] [Accepted: 07/29/2017] [Indexed: 01/18/2023]
Affiliation(s)
- Neill J. Turner
- McGowan Institute for Regenerative Medicine, University of Pittsburgh; Pittsburgh Pennsylvania 15219
- Department of Surgery; University of Pittsburgh; Pittsburgh Pennsylvania 15219
| | - Scott A. Johnson
- McGowan Institute for Regenerative Medicine, University of Pittsburgh; Pittsburgh Pennsylvania 15219
| | - Leslie J. R. Foster
- Biopolymer Research Group; School of Biotechnology and Bimolecular Sciences, The University of New South Wales; Sydney Australia
- Save Sight Institute, Faculty of Medicine, University of Sydney; Sydney Australia
| | - Stephen F. Badylak
- McGowan Institute for Regenerative Medicine, University of Pittsburgh; Pittsburgh Pennsylvania 15219
- Department of Surgery; University of Pittsburgh; Pittsburgh Pennsylvania 15219
- Department of Bioengineering; University of Pittsburgh; Pittsburgh Pennsylvania 15260
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33
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Lim HJ, Mosley MC, Kurosu Y, Smith Callahan LA. Concentration dependent survival and neural differentiation of murine embryonic stem cells cultured on polyethylene glycol dimethacrylate hydrogels possessing a continuous concentration gradient of n-cadherin derived peptide His-Ala-Val-Asp-Lle. Acta Biomater 2017; 56:153-160. [PMID: 27915022 DOI: 10.1016/j.actbio.2016.11.063] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Revised: 11/10/2016] [Accepted: 11/29/2016] [Indexed: 12/31/2022]
Abstract
N-cadherin cell-cell signaling plays a key role in the structure and function of the nervous system. However, few studies have incorporated bioactive signaling from n-cadherin into tissue engineering matrices. The present study uses a continuous gradient approach in polyethylene glycol dimethacrylate hydrogels to identify concentration dependent effects of n-cadherin peptide, His-Ala-Val-Asp-Lle (HAVDI), on murine embryonic stem cell survival and neural differentiation. The n-cadherin peptide was found to affect the expression of pluripotency marker, alkaline phosphatase, in murine embryonic stem cells cultured on n-cadherin peptide containing hydrogels in a concentration dependent manner. Increasing n-cadherin peptide concentrations in the hydrogels elicited a biphasic response in neurite extension length and mRNA expression of neural differentiation marker, neuron-specific class III β-tubulin, in murine embryonic stem cells cultured on the hydrogels. High concentrations of n-cadherin peptide in the hydrogels were found to increase the expression of apoptotic marker, caspase 3/7, in murine embryonic stem cells compared to that of murine embryonic stem cell cultures on hydrogels containing lower concentrations of n-cadherin peptide. Increasing the n-cadherin peptide concentration in the hydrogels facilitated greater survival of murine embryonic stem cells exposed to increasing oxidative stress caused by hydrogen peroxide exposure. The combinatorial approach presented in this work demonstrates concentration dependent effects of n-cadherin signaling on mouse embryonic stem cell behavior, underscoring the need for the greater use of systematic approaches in tissue engineering matrix design in order to understand and optimize bioactive signaling in the matrix for tissue formation. STATEMENT OF SIGNIFICANCE Single cell encapsulation is common in tissue engineering matrices. This eliminates cellular access to cell-cell signaling. N-cadherin, a cell-cell signaling molecule, plays a vital role in the development of neural tissues, but has not been well studied as a bioactive signaling element in neural tissue engineering matrices. The present study uses a systematic continuous gradient approach to identify concentration dependent effects of n-cadherin derived peptide, HAVDI, on the survival and neural differentiation of murine embryonic stem cells. This work underscores the need for greater use to combinatorial strategies to understand the effect complex bioactive signaling, such as n-cadherin, and the need to optimize the concentration of such bioactive signaling within tissue engineering matrices for maximal cellular response.
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Affiliation(s)
- Hyun Ju Lim
- The Vivian L. Smith Department of Neurosurgery, McGovern Medical School at The University of Texas Health Science Center at Houston, United States; Center for Stem Cell and Regenerative Medicine, Brown Foundation Institute of Molecular Medicine, The University of Texas Health Science Center at Houston, United States
| | - Matthew C Mosley
- The Vivian L. Smith Department of Neurosurgery, McGovern Medical School at The University of Texas Health Science Center at Houston, United States; Center for Stem Cell and Regenerative Medicine, Brown Foundation Institute of Molecular Medicine, The University of Texas Health Science Center at Houston, United States
| | - Yuki Kurosu
- The Vivian L. Smith Department of Neurosurgery, McGovern Medical School at The University of Texas Health Science Center at Houston, United States; Center for Stem Cell and Regenerative Medicine, Brown Foundation Institute of Molecular Medicine, The University of Texas Health Science Center at Houston, United States
| | - Laura A Smith Callahan
- The Vivian L. Smith Department of Neurosurgery, McGovern Medical School at The University of Texas Health Science Center at Houston, United States; Center for Stem Cell and Regenerative Medicine, Brown Foundation Institute of Molecular Medicine, The University of Texas Health Science Center at Houston, United States; The Department of Nanomedicine and Biomedical Engineering, University of Texas Health Science Center at Houston, United States; The Graduate School of Biomedical Sciences, University of Texas Health Science Center at Houston, United States.
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Führmann T, Anandakumaran PN, Shoichet MS. Combinatorial Therapies After Spinal Cord Injury: How Can Biomaterials Help? Adv Healthc Mater 2017; 6. [PMID: 28247563 DOI: 10.1002/adhm.201601130] [Citation(s) in RCA: 115] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Revised: 12/05/2016] [Indexed: 12/31/2022]
Abstract
Traumatic spinal cord injury (SCI) results in an immediate loss of motor and sensory function below the injury site and is associated with a poor prognosis. The inhibitory environment that develops in response to the injury is mainly due to local expression of inhibitory factors, scarring and the formation of cystic cavitations, all of which limit the regenerative capacity of endogenous or transplanted cells. Strategies that demonstrate promising results induce a change in the microenvironment at- and around the lesion site to promote endogenous cell repair, including axonal regeneration or the integration of transplanted cells. To date, many of these strategies target only a single aspect of SCI; however, the multifaceted nature of SCI suggests that combinatorial strategies will likely be more effective. Biomaterials are a key component of combinatorial strategies, as they have the potential to deliver drugs locally over a prolonged period of time and aid in cell survival, integration and differentiation. Here we summarize the advantages and limitations of widely used strategies to promote recovery after injury and highlight recent research where biomaterials aided combinatorial strategies to overcome some of the barriers of spinal cord regeneration.
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Affiliation(s)
- Tobias Führmann
- The Donnelly Centre for Cellular and Biomolecular Research; 160 College Street, Room 514 Toronto ON M5S 3E1 Canada
- Department of Chemical Engineering and Applied Chemistry; 200 College Street Toronto ON M5S 3E5 Canada
| | - Priya N. Anandakumaran
- The Donnelly Centre for Cellular and Biomolecular Research; 160 College Street, Room 514 Toronto ON M5S 3E1 Canada
- Institute of Biomaterials and Biomedical Engineering; 164 College Street Toronto ON M5S 3G9 Canada
| | - Molly S. Shoichet
- The Donnelly Centre for Cellular and Biomolecular Research; 160 College Street, Room 514 Toronto ON M5S 3E1 Canada
- Department of Chemical Engineering and Applied Chemistry; 200 College Street Toronto ON M5S 3E5 Canada
- Institute of Biomaterials and Biomedical Engineering; 164 College Street Toronto ON M5S 3G9 Canada
- Department of Chemistry; University of Toronto; 80 St George St Toronto ON M5S 3H6 Canada
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Dou XQ, Feng CL. Amino Acids and Peptide-Based Supramolecular Hydrogels for Three-Dimensional Cell Culture. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1604062. [PMID: 28112836 DOI: 10.1002/adma.201604062] [Citation(s) in RCA: 231] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2016] [Revised: 10/16/2016] [Indexed: 05/18/2023]
Abstract
Supramolecular hydrogels assembled from amino acids and peptide-derived hydrogelators have shown great potential as biomimetic three-dimensional (3D) extracellular matrices because of their merits over conventional polymeric hydrogels, such as non-covalent or physical interactions, controllable self-assembly, and biocompatibility. These merits enable hydrogels to be made not only by using external stimuli, but also under physiological conditions by rationally designing gelator structures, as well as in situ encapsulation of cells into hydrogels for 3D culture. This review will assess current progress in the preparation of amino acids and peptide-based hydrogels under various kinds of external stimuli, and in situ encapsulation of cells into the hydrogels, with a focus on understanding the associations between their structures, properties, and functions during cell culture, and the remaining challenges in this field. The amino acids and peptide-based hydrogelators with rationally designed structures have promising applications in the fields of regenerative medicine, tissue engineering, and pre-clinical evaluation.
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Affiliation(s)
- Xiao-Qiu Dou
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiaotong University, 800 Dongchuan Road., 200240, Shanghai, China
| | - Chuan-Liang Feng
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiaotong University, 800 Dongchuan Road., 200240, Shanghai, China
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Tong S, Xu DP, Liu ZM, Du Y, Wang XK. Synthesis of the New-Type Vascular Endothelial Growth Factor-Silk Fibroin-Chitosan Three-Dimensional Scaffolds for Bone Tissue Engineering and In Vitro Evaluation. J Craniofac Surg 2016; 27:509-15. [PMID: 26890455 DOI: 10.1097/scs.0000000000002296] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
The objective of the study was to discuss the biocompatibility of the vascular endothelial growth factor-silk fibroin-chitosan (VEGF-SF-CS) scaffolds. To offer an ideal scaffold for bone tissue engineering, the author added vascular endothelial growth factor (VEGF) into silk fibroin-chitosan (SF-CS) scaffold directly to reconstruct a three-dimensional scaffold for the first time, SF-CS scaffold was loaded with VEGF and evaluated as a growth factor-delivery device. Human fetal osteoblast cell was seeded on the VEGF-SF-CS scaffolds and SF-CS scaffolds. On VEGF-SF-CS and SF-CS scaffolds, the cell adhesion rate was increased as time went on. Scanning electron microscopy: the cells grew actively and had normal multiple fissions, granular and filamentous substrates could be seen around the cells, and cell microfilaments were closely connected with the scaffolds. The cells could not only show the attached growth on surfaces of the scaffolds, but also extend into the scaffolds. Cell Counting Kit-8 and alkaline phosphatase analysis proved that the VEGF could significantly promote human fetal osteoblast1.19 cells growth and proliferation in the SF-CS scaffolds, but the enhancement of osteoblasts cell proliferation and activity by VEGF was dependent on time.
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Affiliation(s)
- Shuang Tong
- Department of Oral and Maxillofacial Surgery, School of Stomatology, China Medical University, Shenyang, China
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Harris GM, Madigan NN, Lancaster KZ, Enquist LW, Windebank AJ, Schwartz J, Schwarzbauer JE. Nerve Guidance by a Decellularized Fibroblast Extracellular Matrix. Matrix Biol 2016; 60-61:176-189. [PMID: 27641621 DOI: 10.1016/j.matbio.2016.08.011] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Revised: 08/25/2016] [Accepted: 08/25/2016] [Indexed: 12/22/2022]
Abstract
Spinal cord and peripheral nerve injuries require the regeneration of nerve fibers across the lesion site for successful recovery. Providing guidance cues and soluble factors to promote neurite outgrowth and cell survival can enhance repair. The extracellular matrix (ECM) plays a key role in tissue repair by controlling cell adhesion, motility, and growth. In this study, we explored the ability of a mesenchymal ECM to support neurite outgrowth from neurons in the superior cervical ganglia (SCG). Length and morphology of neurites extended on a decellularized fibroblast ECM were compared to those on substrates coated with laminin, a major ECM protein in neural tissue, or fibronectin, the main component of a mesenchymal ECM. Average radial neurite extension was equivalent on laminin and on the decellularized ECM, but contrasted with the shorter, curved neurites observed on the fibronectin substrate. Differences between neurites on fibronectin and on other substrates were confirmed by fast Fourier transform analyses. To control the direction of neurite outgrowth, we developed an ECM with linearly aligned fibril organization by orienting the fibroblasts that deposit the matrix on a polymeric surface micropatterned with a striped chemical interface. Neurites projected from SCGs appeared to reorient in the direction of the pattern. These results highlight the ability of a mesenchymal ECM to enhance neurite extension and to control the directional outgrowth of neurites. This micropatterned decellularized ECM architecture has potential as a regenerative microenvironment for nerve repair.
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Affiliation(s)
- Greg M Harris
- Department of Molecular Biology, Princeton University, Princeton, NJ 08544
| | | | - Karen Z Lancaster
- Department of Molecular Biology, Princeton University, Princeton, NJ 08544
| | - Lynn W Enquist
- Department of Molecular Biology, Princeton University, Princeton, NJ 08544
| | | | - Jeffrey Schwartz
- Department of Chemistry, Princeton University, Princeton, NJ 08544
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38
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A drug delivery hydrogel system based on activin B for Parkinson's disease. Biomaterials 2016; 102:72-86. [PMID: 27322960 DOI: 10.1016/j.biomaterials.2016.06.016] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Revised: 05/27/2016] [Accepted: 06/05/2016] [Indexed: 01/01/2023]
Abstract
Parkinson's disease (PD) is one of the most common neurodegenerative diseases. Activins are members of the superfamily of transforming growth factors and have many potential neuroprotective effects. Herein, at the first place, we verified activin B's neuroprotective role in a PD model, and revealed that activin B's fast release has limited function in the PD therapy. To this end, we developed a multi-functional crosslinker based thermosensitive injectable hydrogels to deliver activin B, and stereotactically injected the activin B-loaded hydrogel into the striatum of a mouse model of PD. The histological evaluation showed that activin B can be detected even 5 weeks post-surgery in PD mice implanted with activin B-loaded hydrogels, and activin B-loaded hydrogels can significantly increase the density of tyrosine hydroxylase positive (TH(+)) nerve fibers and reduce inflammatory responses. The behavioral evaluation demonstrated that activin B-loaded hydrogels significantly improved the performance of the mice in the PD model. Meanwhile, we found that hydrogels can slightly induce the activation of microglia cells and astrocytes, while cannot induce apoptosis in the striatum. Overall, our data demonstrated that the developed activin B-loaded hydrogels provide sustained release of activin B for over 5 weeks and contribute to substantial cellular protection and behavioral improvement, suggesting their potential as a therapeutic strategy for PD.
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Zhang W, Zhu Y, Li J, Guo Q, Peng J, Liu S, Yang J, Wang Y. Cell-Derived Extracellular Matrix: Basic Characteristics and Current Applications in Orthopedic Tissue Engineering. TISSUE ENGINEERING PART B-REVIEWS 2016; 22:193-207. [PMID: 26671674 DOI: 10.1089/ten.teb.2015.0290] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Weixiang Zhang
- First Department of Orthopedics, First Affiliated Hospital of Jiamusi University, Jiamusi, China
| | - Yun Zhu
- Institute of Orthopedics, Chinese PLA General Hospital, Beijing, China
| | - Jia Li
- Department of Acupuncture and Moxibustion, The Second Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, China
| | - Quanyi Guo
- Institute of Orthopedics, Chinese PLA General Hospital, Beijing, China
| | - Jiang Peng
- Institute of Orthopedics, Chinese PLA General Hospital, Beijing, China
- The Neural Regeneration Co-innovation Center of Jiangsu Province, Nantong, Jiangsu Province, China
| | - Shichen Liu
- First Department of Orthopedics, First Affiliated Hospital of Jiamusi University, Jiamusi, China
| | - Jianhua Yang
- First Department of Orthopedics, First Affiliated Hospital of Jiamusi University, Jiamusi, China
| | - Yu Wang
- Institute of Orthopedics, Chinese PLA General Hospital, Beijing, China
- The Neural Regeneration Co-innovation Center of Jiangsu Province, Nantong, Jiangsu Province, China
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40
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Gu Y, Li Z, Huang J, Wang H, Gu X, Gu J. Application of marrow mesenchymal stem cell-derived extracellular matrix in peripheral nerve tissue engineering. J Tissue Eng Regen Med 2016; 11:2250-2260. [PMID: 26777754 DOI: 10.1002/term.2123] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Revised: 10/14/2015] [Accepted: 11/06/2015] [Indexed: 12/20/2022]
Abstract
To advance molecular and cellular therapy into the clinic for peripheral nerve injury, modification of neural scaffolds with the extracellular matrix (ECM) of peripheral nerves has been established as a promising alternative to direct inclusion of support cells and/or growth factors within a neural scaffold, while cell-derived ECM proves to be superior to tissue-derived ECM in the modification of neural scaffolds. Based on the fact that bone marrow mesenchymal stem cells (BMSCs), just like Schwann cells, are adopted as support cells within a neural scaffold, in this study we used BMSCs as parent cells to generate ECM for application in peripheral nerve tissue engineering. A chitosan nerve guidance conduit (NGC) and silk fibroin filamentous fillers were respectively prepared for co-culture with purified BMSCs, followed by decellularization to stimulate ECM deposition. The ECM-modified NGC and lumen fillers were then assembled into a chitosan-silk fibroin-based, BMSC-derived, ECM-modified neural scaffold, which was implanted into rats to bridge a 10 mm-long sciatic nerve gap. Histological and functional assessments after implantation showed that regenerative outcomes achieved by our engineered neural scaffold were better than those achieved by a plain chitosan-silk fibroin scaffold, and suggested the benefits of BMSC-derived ECM for peripheral nerve repair. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Yun Gu
- Jiangsu Key Laboratory of Neuroregeneration, Co-innovation Centre of Neuroregeneration, Nantong University, 19 Qixiu Road, Nantong, JS 226001, People's Republic of China
| | - Zhenmeiyu Li
- Jiangsu Key Laboratory of Neuroregeneration, Co-innovation Centre of Neuroregeneration, Nantong University, 19 Qixiu Road, Nantong, JS 226001, People's Republic of China
| | - Jing Huang
- Department of Hand Surgery, Affiliated Hospital of Nantong University, People's Republic of China
| | - Hongkui Wang
- Jiangsu Key Laboratory of Neuroregeneration, Co-innovation Centre of Neuroregeneration, Nantong University, 19 Qixiu Road, Nantong, JS 226001, People's Republic of China
| | - Xiaosong Gu
- Jiangsu Key Laboratory of Neuroregeneration, Co-innovation Centre of Neuroregeneration, Nantong University, 19 Qixiu Road, Nantong, JS 226001, People's Republic of China
| | - Jianhui Gu
- Department of Hand Surgery, Affiliated Hospital of Nantong University, People's Republic of China
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Lim HJ, Perera TH, Wilems TS, Ghosh S, Zheng YY, Azhdarinia A, Cao Q, Smith Callahan LA. Response to di-functionalized hyaluronic acid with orthogonal chemistry grafting at independent modification sites in rodent models of neural differentiation and spinal cord injury. J Mater Chem B 2016; 4:6865-6875. [DOI: 10.1039/c6tb01906d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Hyaluronic acid functionalized with two orthogonal chemistries at different targets expedites neural maturation in vitro, while reducing inflammation in vivo.
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Affiliation(s)
- Hyun Ju Lim
- Vivian L. Smith Department of Neurosurgery
- McGovern Medical School at University of Texas Health Science Center at Houston
- Houston
- USA
- Center for Stem Cell and Regenerative Medicine
| | - T. Hiran Perera
- Vivian L. Smith Department of Neurosurgery
- McGovern Medical School at University of Texas Health Science Center at Houston
- Houston
- USA
- Center for Stem Cell and Regenerative Medicine
| | - Thomas S. Wilems
- Vivian L. Smith Department of Neurosurgery
- McGovern Medical School at University of Texas Health Science Center at Houston
- Houston
- USA
- Center for Stem Cell and Regenerative Medicine
| | - Sukhen Ghosh
- Center for Molecular Imaging
- Brown Foundation Institute of Molecular Medicine
- University of Texas Health Science Center at Houston
- Houston
- USA
| | - Yi-Yan Zheng
- Vivian L. Smith Department of Neurosurgery
- McGovern Medical School at University of Texas Health Science Center at Houston
- Houston
- USA
- Center for Stem Cell and Regenerative Medicine
| | - Ali Azhdarinia
- Center for Molecular Imaging
- Brown Foundation Institute of Molecular Medicine
- University of Texas Health Science Center at Houston
- Houston
- USA
| | - Qilin Cao
- Vivian L. Smith Department of Neurosurgery
- McGovern Medical School at University of Texas Health Science Center at Houston
- Houston
- USA
- Center for Stem Cell and Regenerative Medicine
| | - Laura A. Smith Callahan
- Vivian L. Smith Department of Neurosurgery
- McGovern Medical School at University of Texas Health Science Center at Houston
- Houston
- USA
- Center for Stem Cell and Regenerative Medicine
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Sart S, Yan Y, Li Y, Lochner E, Zeng C, Ma T, Li Y. Crosslinking of extracellular matrix scaffolds derived from pluripotent stem cell aggregates modulates neural differentiation. Acta Biomater 2016; 30:222-232. [PMID: 26577988 DOI: 10.1016/j.actbio.2015.11.016] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Revised: 08/12/2015] [Accepted: 11/10/2015] [Indexed: 01/20/2023]
Abstract
At various developmental stages, pluripotent stem cells (PSCs) and their progeny secrete a large amount of extracellular matrices (ECMs) which could interact with regulatory growth factors to modulate stem cell lineage commitment. ECMs derived from PSC can be used as unique scaffolds that provide broad signaling capacities to mediate cellular differentiation. However, the rapid degradation of ECMs can impact their applications as the scaffolds for in vitro cell expansion and in vivo transplantation. To address this issue, this study investigated the effects of crosslinking on the ECMs derived from embryonic stem cells (ESCs) and the regulatory capacity of the crosslinked ECMs on the proliferation and differentiation of reseeded ESC-derived neural progenitor cells (NPCs). To create different biological cues, undifferentiated aggregates, spontaneous embryoid bodies, and ESC-derived NPC aggregates were decellularized. The derived ECMs were crosslinked using genipin or glutaraldehyde to enhance the scaffold stability. ESC-derived NPC aggregates were reseeded on different ECM scaffolds and differential cellular compositions of neural progenitors, neurons, and glial cells were observed. The results indicate that ESC-derived ECM scaffolds affect neural differentiation through intrinsic biological cues and biophysical properties. These scaffolds have potential for in vitro cell culture and in vivo tissue regeneration study. STATEMENT OF SIGNIFICANCE Dynamic interactions of acellular extracellular matrices and stem cells are critical for lineage-specific commitment and tissue regeneration. Understanding the synergistic effects of biochemical, biological, and biophysical properties of acellular matrices would facilitate scaffold design and the functional regulation of stem cells. The present study assessed the influence of crosslinked embryonic stem cell-derived extracellular matrix on neural differentiation and revealed the synergistic interactions of various matrix properties. While embryonic stem cell-derived matrices have been assessed as tissue engineering scaffolds, the impact of crosslinking on the embryonic stem cell-derived matrices to modulate neural differentiation has not been studied. The results from this study provide novel knowledge on the interface of embryonic stem cell-derived extracellular matrix and neural aggregates. The findings reported in this manuscript are significant for stem cell differentiation toward the applications in stem cell-based drug screening, disease modeling, and cell therapies.
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Caron I, Rossi F, Papa S, Aloe R, Sculco M, Mauri E, Sacchetti A, Erba E, Panini N, Parazzi V, Barilani M, Forloni G, Perale G, Lazzari L, Veglianese P. A new three dimensional biomimetic hydrogel to deliver factors secreted by human mesenchymal stem cells in spinal cord injury. Biomaterials 2016; 75:135-147. [DOI: 10.1016/j.biomaterials.2015.10.024] [Citation(s) in RCA: 118] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Revised: 10/08/2015] [Accepted: 10/09/2015] [Indexed: 02/06/2023]
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44
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Yan Y, Martin LM, Bosco DB, Bundy JL, Nowakowski RS, Sang QXA, Li Y. Differential effects of acellular embryonic matrices on pluripotent stem cell expansion and neural differentiation. Biomaterials 2015; 73:231-42. [DOI: 10.1016/j.biomaterials.2015.09.020] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Revised: 09/10/2015] [Accepted: 09/10/2015] [Indexed: 12/22/2022]
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45
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3D printing of layered brain-like structures using peptide modified gellan gum substrates. Biomaterials 2015; 67:264-73. [DOI: 10.1016/j.biomaterials.2015.07.022] [Citation(s) in RCA: 292] [Impact Index Per Article: 32.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Accepted: 07/11/2015] [Indexed: 12/31/2022]
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46
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Comparison of Capability of Human Bone Marrow Mesenchymal Stem Cells and Endometrial Stem Cells to Differentiate into Motor Neurons on Electrospun Poly(ε-caprolactone) Scaffold. Mol Neurobiol 2015; 53:5278-87. [PMID: 26420037 DOI: 10.1007/s12035-015-9442-5] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Accepted: 09/10/2015] [Indexed: 12/20/2022]
Abstract
Human endometrial and bone marrow-derived mesenchymal stem cells can be differentiated into a number of cell lineages. Mesenchymal stem cells (MSCs) are potential candidates for cellular therapy. The differentiation of human bone marrow MSCs (hBM-MSCs) and endometrial stem cells (hEnSCs) into motor neuron-like cells has been rarely investigated previously; however, the comparison between these stem cells when they are differentiated into motor neuron-like cell is yet to be studied. The aim of this study was therefore to investigate and compare the capability of hBM-MSCs and hEnSCs cultured on tissue culture polystyrene (TCP) and poly ε-caprolactone (PCL) nanofibrous scaffold to differentiate into motor neuron-like cells in the presence of neural inductive molecules. Engineered hBM-MSCs and hEnSCs seeded on PCL nanofibrous scaffold were differentiated into beta-tubulin III, islet-1, Neurofilament-H (NF-H), HB9, Pax6, and choactase-positive motor neurons by immunostaining and real-time PCR, in response to the signaling molecules. The data obtained from PCR and immunostaining showed that the expression of motor neuron markers of both hBM-MSCs and hEnSCs differentiated cells on PCL scaffold are significantly higher than that of the control group. The expression of these markers in hEnSCs differentiated cells was higher than that in hBM-MSCs. However, this difference was not statistically significant. In conclusion, differentiated hBM-MSCs and hEnSCs on PCL can provide a suitable three-dimensional situation for neuronal survival and outgrowth for regeneration of the central nervous system. Both cells may be potential candidates for cellular therapy in motor neuron disorders. However, differentiation of hEnSCs into motor neuron-like cells was better than hBM-MSCs.
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47
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Multifunctional three-dimensional scaffolds for treatment of spinal cord injury. J Control Release 2015; 213:e12-3. [PMID: 27005060 DOI: 10.1016/j.jconrel.2015.05.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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48
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Sugai K, Nishimura S, Kato-Negishi M, Onoe H, Iwanaga S, Toyama Y, Matsumoto M, Takeuchi S, Okano H, Nakamura M. Neural stem/progenitor cell-laden microfibers promote transplant survival in a mouse transected spinal cord injury model. J Neurosci Res 2015; 93:1826-38. [PMID: 26301451 DOI: 10.1002/jnr.23636] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2015] [Revised: 08/01/2015] [Accepted: 08/06/2015] [Indexed: 12/27/2022]
Abstract
Previous studies have demonstrated that transplantation of neural stem/progenitor cells (NS/PCs) into the lesioned spinal cord can promote functional recovery following incomplete spinal cord injury (SCI) in animal models. However, this strategy is insufficient following complete SCI because of the gap at the lesion epicenter. To obtain functional recovery in a mouse model of complete SCI, this study uses a novel collagen-based microfiber as a scaffold for engrafted NS/PCs. We hypothesized that the NS/PC-microfiber combination would facilitate lesion closure as well as transplant survival in the transected spinal cord. NS/PCs were seeded inside the novel microfibers, where they maintained their capacity to differentiate and proliferate. After transplantation, the stumps of the transected spinal cord were successfully bridged by the NS/PC-laden microfibers. Moreover, the transplanted cells migrated into the host spinal cord and differentiated into three neural lineages (astrocytes, neurons, and oligodendrocytes). However, the NS/PC-laden scaffold could not achieve a neural connection between the rostral end of the injury and the intact caudal area of the spinal cord, nor could it achieve recovery of motor function. To obtain optimal functional recovery, a microfiber design with a modified composition may be useful. Furthermore, combinatorial therapy with rehabilitation and/or medications should also be considered for practical success of biomaterial/cell transplantation-based approaches to regenerative medicine.
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Affiliation(s)
- Keiko Sugai
- Department of Orthopaedic Surgery, Keio University School of Medicine, Shinjuku, Tokyo, Japan.,Department of Physiology, Keio University School of Medicine, Shinjuku, Tokyo, Japan
| | - Soraya Nishimura
- Department of Orthopaedic Surgery, Keio University School of Medicine, Shinjuku, Tokyo, Japan
| | - Midori Kato-Negishi
- Institute of Industrial Science, The University of Tokyo, Meguro, Tokyo, Japan.,Takeuchi Biohybrid Innovation Project, Exploratory Research for Advanced Technology, Japan Science and Technology, Meguro, Tokyo, Japan
| | - Hiroaki Onoe
- Institute of Industrial Science, The University of Tokyo, Meguro, Tokyo, Japan.,Takeuchi Biohybrid Innovation Project, Exploratory Research for Advanced Technology, Japan Science and Technology, Meguro, Tokyo, Japan
| | - Shintaroh Iwanaga
- Institute of Industrial Science, The University of Tokyo, Meguro, Tokyo, Japan.,Takeuchi Biohybrid Innovation Project, Exploratory Research for Advanced Technology, Japan Science and Technology, Meguro, Tokyo, Japan
| | - Yoshiaki Toyama
- Department of Orthopaedic Surgery, Keio University School of Medicine, Shinjuku, Tokyo, Japan
| | - Morio Matsumoto
- Department of Orthopaedic Surgery, Keio University School of Medicine, Shinjuku, Tokyo, Japan
| | - Shoji Takeuchi
- Institute of Industrial Science, The University of Tokyo, Meguro, Tokyo, Japan.,Takeuchi Biohybrid Innovation Project, Exploratory Research for Advanced Technology, Japan Science and Technology, Meguro, Tokyo, Japan
| | - Hideyuki Okano
- Department of Physiology, Keio University School of Medicine, Shinjuku, Tokyo, Japan
| | - Masaya Nakamura
- Department of Orthopaedic Surgery, Keio University School of Medicine, Shinjuku, Tokyo, Japan
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49
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Walthers CM, Seidlits SK. Gene delivery strategies to promote spinal cord repair. Biomark Insights 2015; 10:11-29. [PMID: 25922572 PMCID: PMC4395076 DOI: 10.4137/bmi.s20063] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Revised: 03/02/2015] [Accepted: 03/04/2015] [Indexed: 12/21/2022] Open
Abstract
Gene therapies hold great promise for the treatment of many neurodegenerative disorders and traumatic injuries in the central nervous system. However, development of effective methods to deliver such therapies in a controlled manner to the spinal cord is a necessity for their translation to the clinic. Although essential progress has been made to improve efficiency of transgene delivery and reduce the immunogenicity of genetic vectors, there is still much work to be done to achieve clinical strategies capable of reversing neurodegeneration and mediating tissue regeneration. In particular, strategies to achieve localized, robust expression of therapeutic transgenes by target cell types, at controlled levels over defined time periods, will be necessary to fully regenerate functional spinal cord tissues. This review summarizes the progress over the last decade toward the development of effective gene therapies in the spinal cord, including identification of appropriate target genes, improvements to design of genetic vectors, advances in delivery methods, and strategies for delivery of multiple transgenes with synergistic actions. The potential of biomaterials to mediate gene delivery while simultaneously providing inductive scaffolding to facilitate tissue regeneration is also discussed.
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50
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Zhu T, Tang Q, Shen Y, Tang H, Chen L, Zhu J. An acellular cerebellar biological scaffold: Preparation, characterization, biocompatibility and effects on neural stem cells. Brain Res Bull 2015; 113:48-57. [PMID: 25791359 DOI: 10.1016/j.brainresbull.2015.03.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2015] [Revised: 03/03/2015] [Accepted: 03/09/2015] [Indexed: 12/17/2022]
Abstract
Biomaterial and regenerative medical research has diversified and developed rapidly. A biological scaffold consisting of an extracellular matrix (ECM) functions not only as a supportive material but also as a regulator of cellular functions. Although decellularized scaffolds have been widely applied for the repair of non-central nervous system (CNS) tissues, their efficacy in the CNS has not been extensively investigated. In this report, we describe a dynamic decellularization protocol that combined intracardial perfusion and a series of treatments to effectively remove the cellular components from the cerebellum, which is a unique and relatively simple CNS structure. The resulting cerebellar scaffold retained neurosupportive proteins and growth factors and, when tested with neural stem cells (NSCs) in vitro, was found to be cytocompatible and to stimulate the proliferation and migration of these cells. NSCs that were cultured in vitro on the scaffold differentiated into neurons and astrocytes, as indicated by their expression of βIII-tubulin and glial fibrillary acidic protein (GFAP). Through subcutaneous and intracranial implantation experiments, this preliminary study demonstrated the in vivo biocompatibility of the cerebellar scaffold and indicated its potential for future applications. Thus, our study demonstrated that the cerebellar ECM scaffold provided tissue-specific advantages for regenerative medical applications.
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Affiliation(s)
- Tongming Zhu
- Department of Neurosurgery, Fudan University Huashan Hospital, National Key Laboratory of Medical Neurobiology, Institutes of Brain Science, Shanghai Medical College, Fudan University, Shanghai 200040, China
| | - Qisheng Tang
- Department of Neurosurgery, Fudan University Huashan Hospital, National Key Laboratory of Medical Neurobiology, Institutes of Brain Science, Shanghai Medical College, Fudan University, Shanghai 200040, China
| | - Yiwen Shen
- Department of Neurosurgery, Fudan University Huashan Hospital, National Key Laboratory of Medical Neurobiology, Institutes of Brain Science, Shanghai Medical College, Fudan University, Shanghai 200040, China
| | - Hailiang Tang
- Department of Neurosurgery, Fudan University Huashan Hospital, National Key Laboratory of Medical Neurobiology, Institutes of Brain Science, Shanghai Medical College, Fudan University, Shanghai 200040, China
| | - Luping Chen
- Department of Neurosurgery, Fudan University Huashan Hospital, National Key Laboratory of Medical Neurobiology, Institutes of Brain Science, Shanghai Medical College, Fudan University, Shanghai 200040, China
| | - Jianhong Zhu
- Department of Neurosurgery, Fudan University Huashan Hospital, National Key Laboratory of Medical Neurobiology, Institutes of Brain Science, Shanghai Medical College, Fudan University, Shanghai 200040, China.
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