1
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Feng Y, Peng Y, Jie J, Yang Y, Yang P. The immune microenvironment and tissue engineering strategies for spinal cord regeneration. Front Cell Neurosci 2022; 16:969002. [PMID: 35990891 PMCID: PMC9385973 DOI: 10.3389/fncel.2022.969002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 07/18/2022] [Indexed: 11/13/2022] Open
Abstract
Regeneration of neural tissue is limited following spinal cord injury (SCI). Successful regeneration of injured nerves requires the intrinsic regenerative capability of the neurons and a suitable microenvironment. However, the local microenvironment is damaged, including insufficient intraneural vascularization, prolonged immune responses, overactive immune responses, dysregulated bioenergetic metabolism and terminated bioelectrical conduction. Among them, the immune microenvironment formed by immune cells and cytokines plays a dual role in inflammation and regeneration. Few studies have focused on the role of the immune microenvironment in spinal cord regeneration. Here, we summarize those findings involving various immune cells (neutrophils, monocytes, microglia and T lymphocytes) after SCI. The pathological changes that occur in the local microenvironment and the function of immune cells are described. We also summarize and discuss the current strategies for treating SCI with tissue-engineered biomaterials from the perspective of the immune microenvironment.
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Affiliation(s)
- Yuan Feng
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Yong Peng
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Jing Jie
- Department of Clinical Laboratory, The First People’s Hospital of Nantong, The Second Affiliated Hospital of Nantong University, Nantong, China
- Jing Jie,
| | - Yumin Yang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
- Yumin Yang,
| | - Pengxiang Yang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
- Institute of Cancer Prevention and Treatment, Heilongjiang Academy of Medical Science, Harbin Medical University, Harbin, China
- *Correspondence: Pengxiang Yang,
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2
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Koop F, Strauß S, Peck CT, Aper T, Wilhelmi M, Hartmann C, Hegermann J, Schipke J, Vogt PM, Bucan V. Preliminary application of native Nephila edulis spider silk and fibrin implant causes granulomatous foreign body reaction in vivo in rat's spinal cord. PLoS One 2022; 17:e0264486. [PMID: 35286342 PMCID: PMC8920256 DOI: 10.1371/journal.pone.0264486] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 02/12/2022] [Indexed: 12/22/2022] Open
Abstract
After spinal cord injury, gliomesenchymal scaring inhibits axonal regeneration as a physical barrier. In peripheral nerve injuries, native spider silk was shown to be an effective scaffold to facilitate axonal re-growth and nerve regeneration. This study tested a two-composite scaffold made of longitudinally oriented native spider silk containing a Haemocomplettan fibrin sheath to bridge lesions in the spinal cord and enhance axonal sprouting. In vitro cultivation of neuronal cells on spider silk and fibrin revealed no cytotoxicity of the scaffold components. When spinal cord tissue was cultured on spider silk that was reeled around a metal frame, migration of different cell types, including neurons and neural stem cells, was observed. The scaffold was implanted into spinal cord lesions of four Wistar rats to evaluate the physical stress caused on the animals and examine the bridging potential for axonal sprouting and spinal cord regeneration. However, the implantation in-vivo resulted in a granulomatous foreign body reaction. Spider silk might be responsible for the strong immune response. Thus, the immune response to native spider silk seems to be stronger in the central nervous system than it is known to be in the peripheral body complicating the application of native spider silk in spinal cord injury treatment.
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Affiliation(s)
- Felix Koop
- Department of Plastic, Aesthetic, Hand & Reconstructive Surgery, Hannover Medical School, Hannover, Germany
- * E-mail:
| | - Sarah Strauß
- Department of Plastic, Aesthetic, Hand & Reconstructive Surgery, Hannover Medical School, Hannover, Germany
| | - Claas-Tido Peck
- Department of Plastic, Aesthetic, Hand & Reconstructive Surgery, Hannover Medical School, Hannover, Germany
| | - Thomas Aper
- Cardiac, Thoracic, and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - Mathias Wilhelmi
- Cardiac, Thoracic, and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - Christian Hartmann
- Department of Neuropathology, Hannover Medical School, Hannover, Germany
| | - Jan Hegermann
- Research Core Unit Electron Microscopy and Institute of Functional and Applied Anatomy, Hannover Medical School, Hannover, Germany
| | - Julia Schipke
- Institute of Functional and Applied Anatomy, Hannover Medical School, Hannover, Germany
| | - Peter M. Vogt
- Department of Plastic, Aesthetic, Hand & Reconstructive Surgery, Hannover Medical School, Hannover, Germany
| | - Vesna Bucan
- Department of Plastic, Aesthetic, Hand & Reconstructive Surgery, Hannover Medical School, Hannover, Germany
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3
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Han Q, Zheng T, Zhang L, Wu N, Liang J, Wu H, Li G. Metformin loaded injectable silk fibroin microsphere for the treatment of spinal cord injury. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2022; 33:747-768. [PMID: 34865608 DOI: 10.1080/09205063.2021.2014113] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The repair of spinal cord injury is a great challenge in clinical. Improving the microenvironment of the injured site is the key strategy for accelerating axon regeneration and synaptic formation. Herein, a kind of silk fibroin microspheres functionalized by metformin through dopamine was developed using water-in-oil emulsification-diffusion method and surface modification technique, and the effect on cortical neuron was evaluated. The results showed that the microspheres showed a uniform size distribution with the diameter of around 60 μm and a concave structure. Moreover, the microspheres possessed good injectability and stability. In addition, the metformin could be successfully immobilized in the silk fibroin microspheres. The cell culture results displayed that the growth and morphology of cortical neurons on the microspheres with metformin concentration of 5 mg/mL and 10 mg/mL were obviously better than that on other samples. Notably, the spread area of single cortical cell on silk fibroin microspheres was increased with the ascending metformin concentration. Therefore, the results indicated that the metformin loaded silk fibroin microsphere could obviously improve the growth and spreading behavior of cortical neuron. The study may provide an important experimental basis for the development of drug loaded injectable biomaterials scaffolds for the treatment of spinal cord injury and have great potential for spinal cord regeneration.
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Affiliation(s)
- Qi Han
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Nantong University, Nantong, P.R. China.,Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, P.R. China.,NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, P.R. China
| | - Tiantian Zheng
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Nantong University, Nantong, P.R. China.,Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, P.R. China.,NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, P.R. China
| | - Linhui Zhang
- School of Medical, Nantong University, Nantong, P.R. China
| | - Ningling Wu
- School of Medical, Nantong University, Nantong, P.R. China
| | - Jiaqi Liang
- School of Medical, Nantong University, Nantong, P.R. China
| | - Hong Wu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Nantong University, Nantong, P.R. China.,Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, P.R. China.,NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, P.R. China
| | - Guicai Li
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Nantong University, Nantong, P.R. China.,Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, P.R. China.,NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, P.R. China
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4
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Ode Boni BO, Bakadia BM, Osi AR, Shi Z, Chen H, Gauthier M, Yang G. Immune Response to Silk Sericin-Fibroin Composites: Potential Immunogenic Elements and Alternatives for Immunomodulation. Macromol Biosci 2021; 22:e2100292. [PMID: 34669251 DOI: 10.1002/mabi.202100292] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 10/09/2021] [Indexed: 12/22/2022]
Abstract
The unique properties of silk proteins (SPs), particularly silk sericin (SS) and silk fibroin (SF), have attracted attention in the design of scaffolds for tissue engineering over the past decades. Since SF has good mechanical properties, while SS displays bioactivity, scaffolds combining both proteins should exhibit complementary properties enhancing the potential of these materials. Unfortunately, SS-SF composites can generate chronic immune responses and their immunogenic element is not completely clear. The potential of SS-SF composites in tissue engineering, elements which may contribute to their immunogenicity, and alternatives for their preparation and design, to modulate the immune response and take advantage of their useful properties, are discussed in this review. It is known that SS can enhance β-sheet formation in SF, which may act as hydrophobic regions with a strong affinity for adsorption proteins inducing the chronic recruitment of inflammatory cells. Therefore, tailoring the exposure of hydrophobic regions at the scaffold surface should represent a viable strategy to modulate the immune response. This can be achieved by coating SS-SF composites with SS or other hydrophilic polymers, to take advantage of their antibiofouling properties. Research is still needed to realize the full potential of these composites for tissue engineering.
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Affiliation(s)
- Biaou Oscar Ode Boni
- National Engineering Research Center for Nano-Medicine, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, 430074, P. R. China
| | - Bianza Moïse Bakadia
- National Engineering Research Center for Nano-Medicine, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, 430074, P. R. China
| | - Amarachi Rosemary Osi
- Cixi Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
| | - Zhijun Shi
- National Engineering Research Center for Nano-Medicine, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, 430074, P. R. China
| | - Hong Chen
- Department of Rehabilitation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Mario Gauthier
- Department of Chemistry, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada
| | - Guang Yang
- National Engineering Research Center for Nano-Medicine, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, 430074, P. R. China
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5
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Lin C, Ekblad-Nordberg Å, Michaëlsson J, Götherström C, Hsu CC, Ye H, Johansson J, Rising A, Sundström E, Åkesson E. In Vitro Study of Human Immune Responses to Hyaluronic Acid Hydrogels, Recombinant Spidroins and Human Neural Progenitor Cells of Relevance to Spinal Cord Injury Repair. Cells 2021; 10:1713. [PMID: 34359882 PMCID: PMC8303367 DOI: 10.3390/cells10071713] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 06/28/2021] [Accepted: 06/30/2021] [Indexed: 02/07/2023] Open
Abstract
Scaffolds of recombinant spider silk protein (spidroin) and hyaluronic acid (HA) hydrogel hold promise in combination with cell therapy for spinal cord injury. However, little is known concerning the human immune response to these biomaterials and grafted human neural stem/progenitor cells (hNPCs). Here, we analyzed short- and long-term in vitro activation of immune cells in human peripheral blood mononuclear cells (hPBMCs) cultured with/without recombinant spidroins, HA hydrogels, and/or allogeneic hNPCs to assess potential host-donor interactions. Viability, proliferation and phenotype of hPBMCs were analyzed using NucleoCounter and flow cytometry. hPBMC viability was confirmed after exposure to the different biomaterials. Short-term (15 h) co-cultures of hPBMCs with spidroins, but not with HA hydrogel, resulted in a significant increase in the proportion of activated CD69+ CD4+ T cells, CD8+ T cells, B cells and NK cells, which likely was caused by residual endotoxins from the Escherichia coli expression system. The observed spidroin-induced hPBMC activation was not altered by hNPCs. It is resource-effective to evaluate human compatibility of novel biomaterials early in development of the production process to, when necessary, make alterations to minimize rejection risk. Here, we present a method to evaluate biomaterials and hPBMC compatibility in conjunction with allogeneic human cells.
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Affiliation(s)
- Chenhong Lin
- Division of Neurogeriatrics, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, SE-171 64 Stockholm, Sweden;
| | - Åsa Ekblad-Nordberg
- Division of Obstetrics and Gynecology, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, SE-141 52 Stockholm, Sweden; (Å.E.-N.); (C.G.)
| | - Jakob Michaëlsson
- Center for Infectious Medicine, Department of Medicine Huddinge, Karolinska Institutet, SE-141 86 Stockholm, Sweden;
| | - Cecilia Götherström
- Division of Obstetrics and Gynecology, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, SE-141 52 Stockholm, Sweden; (Å.E.-N.); (C.G.)
| | - Chia-Chen Hsu
- Department of Engineering Science, Institute of Biomedical Engineering, University of Oxford, Oxford OX3 7DQ, UK; (C.-C.H.); (H.Y.)
| | - Hua Ye
- Department of Engineering Science, Institute of Biomedical Engineering, University of Oxford, Oxford OX3 7DQ, UK; (C.-C.H.); (H.Y.)
| | - Jan Johansson
- Department of Biosciences and Nutrition, Karolinska Institutet, SE-141 83 Stockholm, Sweden; (J.J.); (A.R.)
| | - Anna Rising
- Department of Biosciences and Nutrition, Karolinska Institutet, SE-141 83 Stockholm, Sweden; (J.J.); (A.R.)
- Department of Anatomy, Physiology and Biochemistry, Swedish University of Agricultural Sciences, SE-750 07 Uppsala, Sweden
| | - Erik Sundström
- Division of Neurogeriatrics, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, SE-171 64 Stockholm, Sweden;
| | - Elisabet Åkesson
- Division of Neurogeriatrics, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, SE-171 64 Stockholm, Sweden;
- The R&D Unit, Stockholms Sjukhem, SE-112 19 Stockholm, Sweden
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6
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Non-mulberry silk fiber-based scaffolds reinforced by PLLA porous microspheres for auricular cartilage: An in vitro study. Int J Biol Macromol 2021; 182:1704-1712. [PMID: 34052269 DOI: 10.1016/j.ijbiomac.2021.05.145] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 05/19/2021] [Accepted: 05/20/2021] [Indexed: 11/23/2022]
Abstract
Designing clinical applicable polymeric composite scaffolds for auricular cartilage tissue engineering requires appropriate mechanical strength and biological characteristics. In this study, silk fiber-based scaffolds co-reinforced with poly-L-lactic acid porous microspheres (PLLA PMs) combined with either Bombyx mori (Bm) or Antheraea pernyi (Ap) silk fibers were fabricated as inspired by the "steel bars reinforced concrete" structure in architecture and their chondrogenic functions were also investigated. We found that the Ap silk fiber-based scaffolds reinforced by PLLA PMs (MAF) exhibited superior physical properties (the mechanical properties in particular) as compared to the Bm silk fiber-based scaffolds reinforced by PLLA PMs (MBF). Furthermore, in vitro evaluation of chondrogenic potential showed that the MAF provided better cell adhesion, viability, proliferation and GAG secretion than the MBF. Therefore, the MAF are promising in auricular cartilage tissue engineering and relevant plastic surgery-related applications.
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7
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Shuai Y, Lu H, Lv R, Wang J, Wan Q, Mao C, Yang M. Biomineralization Directed by Prenucleated Calcium and Phosphorus Nanoclusters Improving Mechanical Properties and Osteogenic Potential of Antheraea pernyi Silk Fibroin-Based Artificial Periosteum. Adv Healthc Mater 2021; 10:e2001695. [PMID: 33720549 DOI: 10.1002/adhm.202001695] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 01/29/2021] [Indexed: 12/28/2022]
Abstract
The use of biomacromolecules as templates to control the nucleation and growth of hydroxyapatite crystals to prepare bioactive materials is a valuable approach in bone tissue engineering. Here, an artificial periosteum is prepared by biomineralizing Antheraea pernyi fibroin (AF) membrane with prenucleated nanoclusters, which can promote the osteogenic differentiation of mesenchymal stem cells (MSCs) and induce the formation of bone matrix protein in vivo. To achieve this, a biologically inspired prenucleated calcium and phosphorus nanocluster mineralization system is designed to nucleate and generate hydroxyapatite crystals on the surface of the AF membrane. This biomineralization process provides AF membranes with improved elastic modulus and tensile strength. Subsequently, cell viability assay, hemolysis test, and H&E staining show that the mineralized AF (MAF) membranes has good cytocompatibility, hemocompatibility, and histocompatibility in vitro and in vivo. Additionally, the MAF membranes significantly promote osteogenic differentiation of MSCs in the absence of osteogenic inducer in vitro. Experiments in vivo demonstrate that bone-related matrix proteins are highly expressed in MAF groups with or without MSCs seeded. Therefore, the use of bioinspired prenucleated nanoclusters to prepare artificial periosteum based on biomineralized AF membrane is a promising strategy in the field of bone tissue engineering.
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Affiliation(s)
- Yajun Shuai
- Institute of Applied Bioresource Research College of Animal Science Zhejiang University Hangzhou 310058 China
- Key Laboratory of Silkworm and Bee Resource Utilization and Innovation of Zhejiang Province College of Animal Science Zhejiang University Hangzhou 310058 China
| | - Huan Lu
- Institute of Applied Bioresource Research College of Animal Science Zhejiang University Hangzhou 310058 China
- Key Laboratory of Silkworm and Bee Resource Utilization and Innovation of Zhejiang Province College of Animal Science Zhejiang University Hangzhou 310058 China
| | - Ruyin Lv
- Institute of Applied Bioresource Research College of Animal Science Zhejiang University Hangzhou 310058 China
- Key Laboratory of Silkworm and Bee Resource Utilization and Innovation of Zhejiang Province College of Animal Science Zhejiang University Hangzhou 310058 China
| | - Jie Wang
- Institute of Applied Bioresource Research College of Animal Science Zhejiang University Hangzhou 310058 China
- Key Laboratory of Silkworm and Bee Resource Utilization and Innovation of Zhejiang Province College of Animal Science Zhejiang University Hangzhou 310058 China
| | - Quan Wan
- Institute of Applied Bioresource Research College of Animal Science Zhejiang University Hangzhou 310058 China
- Key Laboratory of Silkworm and Bee Resource Utilization and Innovation of Zhejiang Province College of Animal Science Zhejiang University Hangzhou 310058 China
| | - Chuanbin Mao
- Department of Chemistry and Biochemistry Stephenson Life Sciences Research Center University of Oklahoma Norman OK 73019‐5300 USA
| | - Mingying Yang
- Institute of Applied Bioresource Research College of Animal Science Zhejiang University Hangzhou 310058 China
- Key Laboratory of Silkworm and Bee Resource Utilization and Innovation of Zhejiang Province College of Animal Science Zhejiang University Hangzhou 310058 China
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8
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Grijalvo S, Díaz DD. Graphene-based hybrid materials as promising scaffolds for peripheral nerve regeneration. Neurochem Int 2021; 147:105005. [PMID: 33667593 DOI: 10.1016/j.neuint.2021.105005] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 02/15/2021] [Accepted: 02/17/2021] [Indexed: 11/30/2022]
Abstract
Peripheral nerve injury (PNI) is a serious clinical health problem caused by the damage of peripheral nerves which results in neurological deficits and permanent disability. There are several factors that may cause PNI such as localized damage (car accident, trauma, electrical injury) and outbreak of the systemic diseases (autoimmune or diabetes). While various diagnostic procedures including X-ray, magnetic resonance imaging (MRI), as well as other type of examinations such as electromyography or nerve conduction studies have been efficiently developed, a full recovery in patients with PNI is in many cases deficient or incomplete. This is the reason why additional therapeutic strategies should be explored to favor a complete rehabilitation in order to get appropriate nerve injury regeneration. The use of biomaterials acting as scaffolds opens an interesting approach in regenerative medicine and tissue engineering applications due to their ability to guide the growth of new tissues, adhesion and proliferation of cells including the expression of bioactive signals. This review discusses the preparation and therapeutic strategies describing in vitro and in vivo experiments using graphene-based materials in the context of PNI and their ability to promote nerve tissue regeneration.
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Affiliation(s)
- Santiago Grijalvo
- Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), Jordi Girona 18-26, 08034, Barcelona, Catalonia, Spain; Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, Spain
| | - David Díaz Díaz
- Department of Organic Chemistry, University of La Laguna, Avda. Astrofísico Francisco Sánchez 3, 38206, La Laguna, Tenerife, Spain; Institute of Bio-Organic Antonio González, University of La Laguna, Avda. Astrofísico Francisco Sánchez 3, 38206, La Laguna, Tenerife, Spain; Institute of Organic Chemistry, University of Regensburg, Universitätstr. 31, Regensburg, 93053, Germany.
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9
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Hosseinzadeh S, Lindsay SL, Gallagher AG, Wellings DA, Riehle MO, Riddell JS, Barnett SC. A novel poly-ε-lysine based implant, Proliferate®, for promotion of CNS repair following spinal cord injury. Biomater Sci 2020; 8:3611-3627. [PMID: 32515439 DOI: 10.1039/d0bm00097c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The limited regenerative capacity of the CNS poses formidable challenges to the repair of spinal cord injury (SCI). Two key barriers to repair are (i) the physical gap left by the injury, and (ii) the inhibitory milieu surrounding the injury, the glial scar. Biomaterial implantation into the injury site can fill the cavity, provide a substrate for cell migration, and potentially attenuate the glial scar. We investigated the biological viability of a biocompatible and biodegradable poly-ε-lysine based biomaterial, Proliferate®, in low and high cross-linked forms and when coated with IKVAV peptide, for SCI implantation. We demonstrate altered astrocyte morphology and nestin expression on Proliferate® compared to conventional glass cell coverslips suggesting a less reactive phenotype. Moreover Proliferate® supported myelination in vitro, with myelination observed sooner on IKVAV-coated constructs compared with uncoated Proliferate®, and delayed overall compared with maintenance on glass coverslips. For in vivo implantation, parallel-aligned channels were fabricated into Proliferate® to provide cell guidance cues. Extensive vascularisation and cellular infiltration were observed in constructs implanted in vivo, along with an astrocyte border and microglial response. Axonal ingrowth was observed at the construct border and inside implants in intact channels. We conclude that Proliferate® is a promising biomaterial for implantation following SCI.
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Affiliation(s)
- Sara Hosseinzadeh
- Institute of Infection, Immunity and Inflammation, Sir Graeme Davies Building, 120 University Place, University of Glasgow, Glasgow G12 8TA, UK.
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10
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Firouzian KF, Song Y, Lin F, Zhang T. Fabrication of a biomimetic spinal cord tissue construct with heterogenous mechanical properties using intrascaffold cell assembly. Biotechnol Bioeng 2020; 117:3094-3107. [PMID: 32542651 DOI: 10.1002/bit.27459] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 06/10/2020] [Accepted: 06/12/2020] [Indexed: 12/27/2022]
Abstract
In tissue engineering studies, scaffolds play a very important role in offering both physical and chemical cues for cell growth and tissue regeneration. However, in some cases, tissue regeneration requires scaffolds with high mechanical properties (e.g., bone and cartilage), while cells need a soft mechanical microenvironment. In this study, to mimic the heterogenous mechanical properties of a spinal cord tissue, a biomimetic rat tissue construct is fabricated. A collagen-coated poly(lactic-co-glycolic acid) scaffold is manufactured using thermally induced phase separation casting. Primary rat neural cells (P01 Wistar rat cortex) with soft hydrogels are later printed within the scaffold using an image-guided intrascaffold cell assembly technique. The scaffolds have unidirectional microporous structure with parallel axial macrochannels (260 ± 4 µm in diameter). Scaffolds showed mechanical properties similar to rat spine (ultimate tensile strength: 0.085 MPa, Young's modulus [stretch]: 0.31 MPa). The bioink composed of gelatin/alginate/fibrinogen is precisely printed into the macrochannels and showed mechanical properties suitable for neural cells (Young's modulus [compressive]: 3.814 kPa). Scaffold interface, cell viability, and immunostaining analyses show uniform distribution of stable, healthy, and elongated neural cells and neurites over 14 culture days in vitro. The results demonstrated that this method can serve as a valuable tool to aid manufacturing of tissue constructs requiring heterogenous mechanical properties for complex cell and/or biomolecule assembly.
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Affiliation(s)
- Kevin F Firouzian
- Department of Mechanical Engineering, Biomanufacturing Center, Tsinghua University, Beijing, China.,Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Beijing, China.,Biomanufacturing and Engineering Living Systems, Innovation International Talents Base (111 Base), Beijing, China
| | - Yu Song
- Department of Mechanical Engineering, Biomanufacturing Center, Tsinghua University, Beijing, China.,Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Beijing, China.,Biomanufacturing and Engineering Living Systems, Innovation International Talents Base (111 Base), Beijing, China
| | - Feng Lin
- Department of Mechanical Engineering, Biomanufacturing Center, Tsinghua University, Beijing, China.,Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Beijing, China.,Biomanufacturing and Engineering Living Systems, Innovation International Talents Base (111 Base), Beijing, China
| | - Ting Zhang
- Department of Mechanical Engineering, Biomanufacturing Center, Tsinghua University, Beijing, China.,Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Beijing, China.,Biomanufacturing and Engineering Living Systems, Innovation International Talents Base (111 Base), Beijing, China
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11
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Ma Z, Lu Y, Yang Y, Wang J, Kang X. Research progress and prospects of tissue engineering scaffolds for spinal cord injury repair and protection. Regen Med 2019; 14:887-898. [PMID: 31436130 DOI: 10.2217/rme-2018-0156] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Spinal cord injury (SCI) is one of the leading causes of global disability. However, there are currently no effective clinical treatments for SCI. Repair of SCI is essential but poses great challenges. As a comprehensive treatment program combining biological scaffolds, seed cells and drugs or biological factors, tissue engineering has gradually replaced the single transplantation approach to become a focus of research that brings new opportunities for the clinical treatment of SCI.
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Affiliation(s)
- Zhanjun Ma
- The Second Clinical Medical College, Lanzhou University, Lanzhou, Gansu 730000, PR China
| | - Yubao Lu
- The Second Clinical Medical College, Lanzhou University, Lanzhou, Gansu 730000, PR China
| | - Yang Yang
- The Second Clinical Medical College, Lanzhou University, Lanzhou, Gansu 730000, PR China
| | - Jing Wang
- Department of Orthopedics, Lanzhou University Second Hospital, Lanzhou, Gansu 730000, PR China
- The International Cooperation Base of Gansu Province for The Pain Research in Spinal Disorders, Gansu 730000, PR China
| | - Xuewen Kang
- Department of Orthopedics, Lanzhou University Second Hospital, Lanzhou, Gansu 730000, PR China
- The International Cooperation Base of Gansu Province for The Pain Research in Spinal Disorders, Gansu 730000, PR China
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Silva SS, Kundu B, Lu S, Reis RL, Kundu SC. Chinese Oak Tasar SilkwormAntheraea pernyiSilk Proteins: Current Strategies and Future Perspectives for Biomedical Applications. Macromol Biosci 2018; 19:e1800252. [DOI: 10.1002/mabi.201800252] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Revised: 08/22/2018] [Indexed: 11/08/2022]
Affiliation(s)
- Simone S. Silva
- 3B's Research GroupI3Bs—Research Institute on BiomaterialsBiodegradables and BiomimeticsUniversity of MinhoHeadquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra 4805‐017 Barco Guimarães Portugal
- ICVS/3B's—PT Government Associate Laboratory Braga/Guimarães Portugal
| | - Banani Kundu
- 3B's Research GroupI3Bs—Research Institute on BiomaterialsBiodegradables and BiomimeticsUniversity of MinhoHeadquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra 4805‐017 Barco Guimarães Portugal
- ICVS/3B's—PT Government Associate Laboratory Braga/Guimarães Portugal
| | - Shenzhou Lu
- National Engineering Laboratory for Modern SilkCollege of Textile and Clothing EngineeringSoochow University Suzhou 215123 China
| | - Rui L. Reis
- 3B's Research GroupI3Bs—Research Institute on BiomaterialsBiodegradables and BiomimeticsUniversity of MinhoHeadquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra 4805‐017 Barco Guimarães Portugal
- ICVS/3B's—PT Government Associate Laboratory Braga/Guimarães Portugal
- The Discoveries Centre for Regenerative and Precision MedicineHeadquarters at University of Minho Avepark, 4805‐017 Barco Guimarães Portugal
| | - Subhas C. Kundu
- 3B's Research GroupI3Bs—Research Institute on BiomaterialsBiodegradables and BiomimeticsUniversity of MinhoHeadquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra 4805‐017 Barco Guimarães Portugal
- ICVS/3B's—PT Government Associate Laboratory Braga/Guimarães Portugal
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Varone A, Rajnicek AM, Huang W. Silkworm silk biomaterials for spinal cord repair: promise for combinatorial therapies. Neural Regen Res 2018; 13:809-810. [PMID: 29863007 PMCID: PMC5998641 DOI: 10.4103/1673-5374.232471] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Affiliation(s)
- Anna Varone
- Institute of Medical Sciences, University of Aberdeen, Foresterhill, Aberdeen, UK
| | - Ann Marie Rajnicek
- Institute of Medical Sciences, University of Aberdeen, Foresterhill, Aberdeen, UK
| | - Wenlong Huang
- Institute of Medical Sciences, University of Aberdeen, Foresterhill, Aberdeen, UK
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