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Chang FC, James MM, Zhou Y, Ando Y, Zareie HM, Yang J, Zhang M. Human Neural Stem Cell Expansion in Natural Polymer Scaffolds Under Chemically Defined Condition. Adv Biol (Weinh) 2024:e2400224. [PMID: 38963310 DOI: 10.1002/adbi.202400224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2024] [Revised: 06/06/2024] [Indexed: 07/05/2024]
Abstract
The maintenance and expansion of human neural stem cells (hNSCs) in 3D tissue scaffolds is a promising strategy in producing cost-effective hNSCs with quality and quantity applicable for clinical applications. A few biopolymers have been extensively used to fabricate 3D scaffolds, including hyaluronic acid, collagen, alginate, and chitosan, due to their bioactive nature and availability. However, these polymers are usually applied in combination with other biomolecules, leading to their responses difficult to ascribe to. Here, scaffolds made of chitosan, alginate, hyaluronic acid, or collagen, are explored for hNSC expansion under xeno-free and chemically defined conditions and compared for hNSC multipotency maintenance. This study shows that the scaffolds made of pure chitosan support the highest adhesion and growth of hNSCs, yielding the most viable cells with NSC marker protein expression. In contrast, the presence of alginate, hyaluronic acid, or collagen induces differentiation toward immature neurons and astrocytes even in the maintenance medium and absence of differentiation factors. The cells in pure chitosan scaffolds preserve the level of transmembrane protein profile similar to that of standard culture. These findings point to the potential of using pure chitosan scaffolds as a base scaffolding material for hNSC expansion in 3D.
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Affiliation(s)
- Fei-Chien Chang
- Department of Materials Science and Engineering, University of Washington, Seattle, WA, 98195, USA
| | - Matthew Michael James
- Department of Materials Science and Engineering, University of Washington, Seattle, WA, 98195, USA
| | - Yang Zhou
- Department of Materials Science and Engineering, University of Washington, Seattle, WA, 98195, USA
| | - Yoshiki Ando
- Materials Department, Medical R&D Center, Corporate R&D Group, KYOCERA Corporation, Yasu, Shiga, 520-2362, Japan
| | - Hadi M Zareie
- Department of Materials Science and Engineering, University of Washington, Seattle, WA, 98195, USA
| | - Jihui Yang
- Department of Materials Science and Engineering, University of Washington, Seattle, WA, 98195, USA
| | - Miqin Zhang
- Department of Materials Science and Engineering, University of Washington, Seattle, WA, 98195, USA
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2
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Keskin-Erdogan Z, Mandakhbayar N, Jin GS, Li YM, Chau DYS, Day RM, Kim HW, Knowles JC. Lithium-loaded GelMA-Phosphate glass fibre constructs: Implications for astrocyte response. J Biomed Mater Res A 2024; 112:1070-1082. [PMID: 38400701 DOI: 10.1002/jbm.a.37686] [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: 08/02/2023] [Revised: 01/31/2024] [Accepted: 02/02/2024] [Indexed: 02/25/2024]
Abstract
Combinations of different biomaterials with their own advantages as well as functionalization with other components have long been implemented in tissue engineering to improve the performance of the overall material. Biomaterials, particularly hydrogel platforms, have shown great potential for delivering compounds such as drugs, growth factors, and neurotrophic factors, as well as cells, in neural tissue engineering applications. In central the nervous system, astrocyte reactivity and glial scar formation are significant and complex challenges to tackle for neural and functional recovery. GelMA hydrogel-based tissue constructs have been developed in this study and combined with two different formulations of phosphate glass fibers (PGFs) (with Fe3+ or Ti2+ oxide) to impose physical and mechanical cues for modulating astrocyte cell behavior. This study was also aimed at investigating the effects of lithium-loaded GelMA-PGFs hydrogels in alleviating astrocyte reactivity and glial scar formation offering novel perspectives for neural tissue engineering applications. The rationale behind introducing lithium is driven by its long-proven therapeutic benefits in mental disorders, and neuroprotective and pronounced anti-inflammatory properties. The optimal concentrations of lithium and LPS were determined in vitro on primary rat astrocytes. Furthermore, qPCR was conducted for gene expression analysis of GFAP and IL-6 markers on primary astrocytes cultured 3D into GelMA and GelMA-PGFs hydrogels with and without lithium and in vitro stimulated with LPS for astrocyte reactivity. The results suggest that the combination of bioactive phosphate-based glass fibers and lithium loading into GelMA structures may impact GFAP expression and early IL-6 expression. Furthermore, GelMA-PGFs (Fe) constructs have shown improved performance in modulating glial scarring over GFAP regulation.
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Affiliation(s)
- Zalike Keskin-Erdogan
- Division of Biomaterials and Tissue Engineering, Eastman Dental Institute, University College London, Royal Free Hospital, London, UK
- Chemical Engineering Department, Imperial College London, London, UK
| | - Nandin Mandakhbayar
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, Republic of Korea
| | - Gang Shi Jin
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, Republic of Korea
| | - Yu-Meng Li
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, Republic of Korea
| | - David Y S Chau
- Division of Biomaterials and Tissue Engineering, Eastman Dental Institute, University College London, Royal Free Hospital, London, UK
- UCL Eastman-Korea Dental Medicine Innovation Centre, Dankook University, Cheonan, Republic of Korea
| | - Richard M Day
- Centre for Precision Healthcare, UCL Division of Medicine, University College London, London, UK
| | - Hae-Won Kim
- Chemical Engineering Department, Imperial College London, London, UK
- UCL Eastman-Korea Dental Medicine Innovation Centre, Dankook University, Cheonan, Republic of Korea
- Department of Nanobiomedical Science and BK21 NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, Republic of Korea
| | - Jonathan C Knowles
- Division of Biomaterials and Tissue Engineering, Eastman Dental Institute, University College London, Royal Free Hospital, London, UK
- UCL Eastman-Korea Dental Medicine Innovation Centre, Dankook University, Cheonan, Republic of Korea
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3
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Stocco E, Barbon S, Emmi A, Tiengo C, De Caro R, Macchi V, Porzionato A. Commentary: Techniques and graft materials for repairing peripheral nerve defects. Front Neurol 2024; 15:1420324. [PMID: 38974681 PMCID: PMC11224285 DOI: 10.3389/fneur.2024.1420324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2024] [Accepted: 05/29/2024] [Indexed: 07/09/2024] Open
Affiliation(s)
- Elena Stocco
- Section of Human Anatomy, Department of Neuroscience, University of Padova, Padova, Italy
- Department of Women's and Children's Health, University of Padova, Padova, Italy
- Department of Surgery, Oncology and Gastroenterology, University of Padova, Padova, Italy
- Foundation for Biology and Regenerative Medicine, Tissue Engineering and Signaling, Onlus, Padova, Italy
| | - Silvia Barbon
- Section of Human Anatomy, Department of Neuroscience, University of Padova, Padova, Italy
- Foundation for Biology and Regenerative Medicine, Tissue Engineering and Signaling, Onlus, Padova, Italy
| | - Aron Emmi
- Section of Human Anatomy, Department of Neuroscience, University of Padova, Padova, Italy
| | - Cesare Tiengo
- Plastic Surgery Unit, Department of Neuroscience, University of Padova, Padova, Italy
| | - Raffaele De Caro
- Section of Human Anatomy, Department of Neuroscience, University of Padova, Padova, Italy
| | - Veronica Macchi
- Section of Human Anatomy, Department of Neuroscience, University of Padova, Padova, Italy
| | - Andrea Porzionato
- Section of Human Anatomy, Department of Neuroscience, University of Padova, Padova, Italy
- Foundation for Biology and Regenerative Medicine, Tissue Engineering and Signaling, Onlus, Padova, Italy
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Wang S, Wen X, Fan Z, Ding X, Wang Q, Liu Z, Yu W. Research advancements on nerve guide conduits for nerve injury repair. Rev Neurosci 2024; 0:revneuro-2023-0093. [PMID: 38517315 DOI: 10.1515/revneuro-2023-0093] [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: 08/23/2023] [Accepted: 11/19/2023] [Indexed: 03/23/2024]
Abstract
Peripheral nerve injury (PNI) is one of the most serious causes of disability and loss of work capacity of younger individuals. Although PNS has a certain degree of regeneration, there are still challenges like disordered growth, neuroma formation, and incomplete regeneration. Regarding the management of PNI, conventional methods such as surgery, pharmacotherapy, and rehabilitative therapy. Treatment strategies vary depending on the severity of the injury. While for the long nerve defect, autologous nerve grafting is commonly recognized as the preferred surgical approach. Nevertheless, due to lack of donor sources, neurological deficits and the low regeneration efficiency of grafted nerves, nerve guide conduits (NGCs) are recognized as a future promising technology in recent years. This review provides a comprehensive overview of current treatments for PNI, and discusses NGCs from different perspectives, such as material, design, fabrication process, and composite function.
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Affiliation(s)
- Shoushuai Wang
- China-Japan Union Hospital of Jilin University, 126 Xiantai Street, Changchun City 130033, Jilin Province, China
| | - Xinggui Wen
- China-Japan Union Hospital of Jilin University, 126 Xiantai Street, Changchun City 130033, Jilin Province, China
| | - Zheyuan Fan
- China-Japan Union Hospital of Jilin University, 126 Xiantai Street, Changchun City 130033, Jilin Province, China
| | - Xiangdong Ding
- China-Japan Union Hospital of Jilin University, 126 Xiantai Street, Changchun City 130033, Jilin Province, China
| | - Qianqian Wang
- China-Japan Union Hospital of Jilin University, 126 Xiantai Street, Changchun City 130033, Jilin Province, China
| | - Zhongling Liu
- China-Japan Union Hospital of Jilin University, 126 Xiantai Street, Changchun City 130033, Jilin Province, China
| | - Wei Yu
- China-Japan Union Hospital of Jilin University, 126 Xiantai Street, Changchun City 130033, Jilin Province, China
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Redolfi Riva E, Özkan M, Contreras E, Pawar S, Zinno C, Escarda-Castro E, Kim J, Wieringa P, Stellacci F, Micera S, Navarro X. Beyond the limiting gap length: peripheral nerve regeneration through implantable nerve guidance conduits. Biomater Sci 2024; 12:1371-1404. [PMID: 38363090 DOI: 10.1039/d3bm01163a] [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: 02/17/2024]
Abstract
Peripheral nerve damage results in the loss of sensorimotor and autonomic functions, which is a significant burden to patients. Furthermore, nerve injuries greater than the limiting gap length require surgical repair. Although autografts are the preferred clinical choice, their usage is impeded by their limited availability, dimensional mismatch, and the sacrifice of another functional donor nerve. Accordingly, nerve guidance conduits, which are tubular scaffolds engineered to provide a biomimetic environment for nerve regeneration, have emerged as alternatives to autografts. Consequently, a few nerve guidance conduits have received clinical approval for the repair of short-mid nerve gaps but failed to regenerate limiting gap damage, which represents the bottleneck of this technology. Thus, it is still necessary to optimize the morphology and constituent materials of conduits. This review summarizes the recent advances in nerve conduit technology. Several manufacturing techniques and conduit designs are discussed, with emphasis on the structural improvement of simple hollow tubes, additive manufacturing techniques, and decellularized grafts. The main objective of this review is to provide a critical overview of nerve guidance conduit technology to support regeneration in long nerve defects, promote future developments, and speed up its clinical translation as a reliable alternative to autografts.
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Affiliation(s)
- Eugenio Redolfi Riva
- The Biorobotic Institute, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56127 Pisa, Italy.
- Department of Excellence in Robotics & AI, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56127 Pisa, Italy
| | - Melis Özkan
- Institute of Materials, école Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
- Bertarelli Foundation Chair in Translational Neural Engineering, Center for Neuroprosthetics and Institute of Bioengineering, école Polytechnique Federale de Lausanne, Lausanne, Switzerland
| | - Estefania Contreras
- Integral Service for Laboratory Animals (SIAL), Faculty of Veterinary, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
- Department of Cell Biology, Physiology and Immunology, Institute of Neurosciences, Universitat Autònoma de Barcelona (UAB), 08193 Bellaterra, Spain.
| | - Sujeet Pawar
- Institute of Materials, école Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Ciro Zinno
- The Biorobotic Institute, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56127 Pisa, Italy.
- Department of Excellence in Robotics & AI, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56127 Pisa, Italy
| | - Enrique Escarda-Castro
- Complex Tissue Regeneration Department, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Maastricht, The Netherlands
| | - Jaehyeon Kim
- Complex Tissue Regeneration Department, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Maastricht, The Netherlands
| | - Paul Wieringa
- Complex Tissue Regeneration Department, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Maastricht, The Netherlands
| | - Francesco Stellacci
- Institute of Materials, école Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
- Institute of Materials, Department of Bioengineering and Global Health Institute, École Polytechnique Fédérale de Lausanne (EPFL), Station 12, CH-1015 Lausanne, Switzerland
| | - Silvestro Micera
- The Biorobotic Institute, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56127 Pisa, Italy.
- Department of Excellence in Robotics & AI, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56127 Pisa, Italy
- Bertarelli Foundation Chair in Translational Neural Engineering, Center for Neuroprosthetics and Institute of Bioengineering, école Polytechnique Federale de Lausanne, Lausanne, Switzerland
| | - Xavier Navarro
- Department of Cell Biology, Physiology and Immunology, Institute of Neurosciences, Universitat Autònoma de Barcelona (UAB), 08193 Bellaterra, Spain.
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), 28031 Madrid, Spain
- Institute Guttmann Foundation, Hospital of Neurorehabilitation, Badalona, Spain
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Praetzel R, Motaghed M, Fereydouni M, Ahani E, Kepley C. Description and Characterization of Three-Dimensional Human Mast Cell Progenitor Spheroids In Vitro. Cureus 2024; 16:e53708. [PMID: 38455803 PMCID: PMC10919245 DOI: 10.7759/cureus.53708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 01/28/2024] [Indexed: 03/09/2024] Open
Abstract
Human mast cells (MC) are an essential component of the immune system as they uniquely store and release a wide range of soluble mediators through IgE and non-IgE mechanisms. Several tissue sources can be used to differentiate functional MC for in vitro and in vivo studies. Here we describe an improved method for obtaining large numbers of human MC from adipose tissue with advantages over current methods. We analyzed donor parameters (e.g. age, race) on MC-isolation following adipose and skin tissue digestion from healthy donors. Adipose and skin-derived MC were morphologically and immunophenotypically similar in all donors regardless of age. However, donor-dependent variations in MC numbers were observed following tissue digestion. In addition, we identified and characterized three-dimensional structures from which mature MC emerged in vitro using peripheral blood and human tissue sources. MC progenitor spheroids (MCPS) appeared approximately one week following progenitor isolation and were consistently observed to have mature MC attached, emerging, or nearby when cultured in a stem cell factor-containing medium. The overall characteristics of the MCPS were similar from each tissue source. We propose that these MCPS serve as the common source of human MC in vitro.
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Affiliation(s)
- Rebecca Praetzel
- Department of Molecular and Cellular Sciences, Liberty University College of Osteopathic Medicine, Lynchburg, USA
| | - Mona Motaghed
- Department of Nanoengineering, North Carolina Agricultural and Technical State University, Greensboro, USA
| | - Mohammad Fereydouni
- Department of Nanoscience, University of North Carolina at Greensboro, Greensboro, USA
| | - Elnaz Ahani
- Department of Nanoengineering, North Carolina Agricultural and Technical State University, Greensboro, USA
| | - Chris Kepley
- Department of Molecular and Cellular Sciences, Liberty University College of Osteopathic Medicine, Lynchburg, USA
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Rein S, Schober R, Poetschke J, Kremer T. Non degradation of chitosan and initial degradation of collagen nerve conduits used for protection of nerve coaptations. Microsurgery 2024; 44:e31093. [PMID: 37477338 DOI: 10.1002/micr.31093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 07/03/2023] [Accepted: 07/06/2023] [Indexed: 07/22/2023]
Abstract
BACKGROUND Nerve conduits are either used to bridge nerve gaps of up to 3 cm or to protect nerve coaptations. Biodegradable nerve conduits, which are currently commercially available, include Chitosan or collagen-based ones. As histological aspects of their degradation are highly relevant for the progress of neuronal regeneration, the aim of this study was to report the histopathological signs of such nerve conduits, which were removed during revision surgery. MATERIALS AND METHODS Either Chitosan (n = 2) or collagen (n = 2) nerve conduits were implanted after neuroma resection and nerve grafting (n = 2) or traumatic nerve lesion after cut (n = 1) or crush injury (n = 1) in two females and two men, aged between 17 and 57 years. Revision surgery with removal of the nerve conduits was indicated due to persisting neuropathic pain and sensorimotor deficits, limited joint motion, or neurolysis with hardware removal at a median time of 17 months (range: 5.5-48 months). Histopathological analyses of all removed nerve conduits were performed. RESULTS A scar neuroma was diagnosed in one out of four patients. Mechanical complication occurred in one patient after nerve conduit implantation bridged over finger joints. Intraoperatively no or only initial signs of degradation of the nerve conduits were observed. Chitosan conduits revealed largely unchanged shape and structure of chitosan, and coating of the conduit by a vascularized fibrous membrane. The latter contained deposits taken up by macrophages, most likely representing dissolved chitosan. Characteristic histopathologic features of the degradation of collagen conduits were a disintegration of the compact collagen into separate fine circular strands, No foreign body reaction was observed in all removed nerve conduits. CONCLUSIONS Both Chitosan nerve conduits have not been degraded. The collagen nerve conduits showed a beginning degradation process. Furthermore, wrapping the repaired nerve with a nerve conduit did neither prevent adhesions nor improved nerve gliding. Therefore, biodegradation in time should be particularly addressed in further developments of nerve conduits.
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Affiliation(s)
- Susanne Rein
- Department of Plastic and Handsurgery, Burn Unit, Klinikum St. Georg gGmbH, Leipzig, Germany
- Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - Ralf Schober
- Institute for Pathology and Tumour Diagnostics, Klinikum St. Georg gGmbH, Leipzig, Germany
| | - Julian Poetschke
- Department of Plastic and Handsurgery, Burn Unit, Klinikum St. Georg gGmbH, Leipzig, Germany
| | - Thomas Kremer
- Department of Plastic and Handsurgery, Burn Unit, Klinikum St. Georg gGmbH, Leipzig, Germany
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Cui TW, Lu LF, Cao XD, Zhang QP, He YB, Wang YR, Ren R, Ben XY, Ni PL, Ma ZJ, Li YQ, Yi XN, Feng RJ. Exosomes combined with biosynthesized cellulose conduits improve peripheral nerve regeneration. IBRO Neurosci Rep 2023; 15:262-269. [PMID: 37841087 PMCID: PMC10570595 DOI: 10.1016/j.ibneur.2023.09.009] [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: 07/09/2023] [Revised: 09/21/2023] [Accepted: 09/25/2023] [Indexed: 10/17/2023] Open
Abstract
Peripheral nerve injury is one of the more common forms of peripheral nerve disorders, and the most severe type of peripheral nerve injury is a defect with a gap. Biosynthetic cellulose membrane (BCM) is a commonly used material for repair and ligation of nerve defects with gaps. Meanwhile, exosomes from mesenchymal stem cells can promote cell growth and proliferation. We envision combining exosomes with BCMs to leverage the advantages of both to promote repair of peripheral nerve injury. Prepared exosomes were added to BCMs to form exosome-loaded BCMs (EXO-BCM) that were used for nerve repair in a rat model of sciatic nerve defects with gaps. We evaluated the repair activity using a pawprint experiment, measurement and statistical analyses of sciatica function index and thermal latency of paw withdrawal, and quantitation of the number and diameter of regenerated nerve fibers. Results indicated that EXO-BCM produced comprehensive and durable repair of peripheral nerve defects that were similar to those for autologous nerve transplantation, the gold standard for nerve defect repair. EXO-BCM is not predicted to cause donor site morbidity to the patient, in contrast to autologous nerve transplantation. Together these results indicate that an approach using EXO-BCM represents a promising alternative to autologous nerve transplantation, and could have broad applications for repair of nerve defects.
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Affiliation(s)
- Tian-Wei Cui
- Key Laboratory of Brain Science Research and Transformation in Tropical Environment of Hainan Province, Hainan Medical University, Haikou, China
- Department of Human Anatomy, Hainan Medical University, Haikou, China
| | - Li-Fang Lu
- Key Laboratory of Brain Science Research and Transformation in Tropical Environment of Hainan Province, Hainan Medical University, Haikou, China
- Department of Human Anatomy, Hainan Medical University, Haikou, China
| | - Xu-Dong Cao
- Department of Chemical and Biological Engineering, University of Ottawa, Ottawa, Ontario, Canada
| | - Quan-Peng Zhang
- Key Laboratory of Brain Science Research and Transformation in Tropical Environment of Hainan Province, Hainan Medical University, Haikou, China
- Department of Human Anatomy, Hainan Medical University, Haikou, China
| | - Yue-Bin He
- Key Laboratory of Brain Science Research and Transformation in Tropical Environment of Hainan Province, Hainan Medical University, Haikou, China
| | - Ya-Ru Wang
- Key Laboratory of Brain Science Research and Transformation in Tropical Environment of Hainan Province, Hainan Medical University, Haikou, China
| | - Rui Ren
- Key Laboratory of Brain Science Research and Transformation in Tropical Environment of Hainan Province, Hainan Medical University, Haikou, China
- Department of Human Anatomy, Hainan Medical University, Haikou, China
| | - Xin-Yu Ben
- Key Laboratory of Brain Science Research and Transformation in Tropical Environment of Hainan Province, Hainan Medical University, Haikou, China
| | - Pan-Li Ni
- Key Laboratory of Brain Science Research and Transformation in Tropical Environment of Hainan Province, Hainan Medical University, Haikou, China
| | - Zhi-Jian Ma
- Key Laboratory of Brain Science Research and Transformation in Tropical Environment of Hainan Province, Hainan Medical University, Haikou, China
- Department of Human Anatomy, Hainan Medical University, Haikou, China
| | - Yun-Qing Li
- Department of Anatomy, Histology and Embryology and K.K. Leung Brain Research Centre, The Fourth Military Medical University, Xi'an, China
| | - Xi-Nan Yi
- Key Laboratory of Brain Science Research and Transformation in Tropical Environment of Hainan Province, Hainan Medical University, Haikou, China
- Department of Human Anatomy, Hainan Medical University, Haikou, China
| | - Ren-Jun Feng
- Key Laboratory of Brain Science Research and Transformation in Tropical Environment of Hainan Province, Hainan Medical University, Haikou, China
- Department of Human Anatomy, Hainan Medical University, Haikou, China
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9
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Bianchini M, Zinno C, Micera S, Redolfi Riva E. Improved Physiochemical Properties of Chitosan@PCL Nerve Conduits by Natural Molecule Crosslinking. Biomolecules 2023; 13:1712. [PMID: 38136583 PMCID: PMC10741752 DOI: 10.3390/biom13121712] [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: 10/17/2023] [Revised: 11/20/2023] [Accepted: 11/25/2023] [Indexed: 12/24/2023] Open
Abstract
Nerve conduits may represent a valuable alternative to autograft for the regeneration of long-gap damages. However, no NCs have currently reached market approval for the regeneration of limiting gap lesions, which still represents the very bottleneck of this technology. In recent years, a strong effort has been made to envision an engineered graft to tackle this issue. In our recent work, we presented a novel design of porous/3D-printed chitosan/poly-ε-caprolactone conduits, coupling freeze drying and additive manufacturing technologies to yield conduits with good structural properties. In this work, we studied genipin crosslinking as strategy to improve the physiochemical properties of our conduit. Genipin is a natural molecule with very low toxicity that has been used to crosslink chitosan porous matrix by binding the primary amino group of chitosan chains. Our characterization evidenced a stabilizing effect of genipin crosslinking towards the chitosan matrix, with reported modified porosity and ameliorated mechanical properties. Given the reported results, this method has the potential to improve the performance of our conduits for the regeneration of long-gap nerve injuries.
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Affiliation(s)
- Marta Bianchini
- The BioRobotics Institute, Department of Excellence in Robotics and AI, Scuola Superiore Sant’Anna, 56127 Pisa, Italy; (M.B.); (C.Z.); (S.M.)
| | - Ciro Zinno
- The BioRobotics Institute, Department of Excellence in Robotics and AI, Scuola Superiore Sant’Anna, 56127 Pisa, Italy; (M.B.); (C.Z.); (S.M.)
| | - Silvestro Micera
- The BioRobotics Institute, Department of Excellence in Robotics and AI, Scuola Superiore Sant’Anna, 56127 Pisa, Italy; (M.B.); (C.Z.); (S.M.)
- Translational Neuroengineering, Centre for Neuroprosthetics and Institute of Bioengineering, School of Engineering, École Polytechnique Fédérale de Lausanne (EPFL), 1007 Lausanne, Switzerland
| | - Eugenio Redolfi Riva
- The BioRobotics Institute, Department of Excellence in Robotics and AI, Scuola Superiore Sant’Anna, 56127 Pisa, Italy; (M.B.); (C.Z.); (S.M.)
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10
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Rosenbalm TN, Levi NH, Morykwas MJ, Wagner WD. Electrical stimulation via repeated biphasic conducting materials for peripheral nerve regeneration. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2023; 34:61. [PMID: 37964030 PMCID: PMC10645611 DOI: 10.1007/s10856-023-06763-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Accepted: 10/26/2023] [Indexed: 11/16/2023]
Abstract
Improved materials for peripheral nerve repair are needed for the advancement of new surgical techniques in fields spanning from oncology to trauma. In this study, we developed bioresorbable materials capable of producing repeated electric field gradients spaced 600 μm apart to assess the impact on neuronal cell growth, and migration. Electrically conductive, biphasic composites comprised of poly (glycerol) sebacate acrylate (PGSA) alone, and doped with poly (pyrrole) (PPy), were prepared to create alternating segments with high and low electrically conductivity. Conductivity measurements demonstrated that 0.05% PPy added to PSA achieved an optimal value of 1.25 × 10-4 S/cm, for subsequent electrical stimulation. Tensile testing and degradation of PPy doped and undoped PGSA determined that 35-40% acrylation of PGSA matched nerve mechanical properties. Both fibroblast and neuronal cells thrived when cultured upon the composite. Biphasic PGSA/PPy sheets seeded with neuronal cells stimulated for with 3 V, 20 Hz demonstrated a 5x cell increase with 1 day of stimulation and up to a 10x cell increase with 3 days stimulation compared to non-stimulated composites. Tubular conduits composed of repeated high and low conductivity materials suitable for implantation in the rat sciatic nerve model for nerve repair were evaluated in vivo and were superior to silicone conduits. These results suggest that biphasic conducting conduits capable of maintaining mechanical properties without inducing compression injuries while generating repeated electric fields are a promising tool for acceleration of peripheral nerve repair to previously untreatable patients.
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Affiliation(s)
- Tabitha N Rosenbalm
- School of Biomedical Engineering and Sciences, Wake Forest University-Virginia Polytechnic Institute and State University, Winston-Salem, NC, 27106, USA
- Department of Plastic and Reconstructive Surgery, Wake Forest Baptist Health, Winston-Salem, NC, 27157, USA
| | - Nicole H Levi
- School of Biomedical Engineering and Sciences, Wake Forest University-Virginia Polytechnic Institute and State University, Winston-Salem, NC, 27106, USA.
- Department of Plastic and Reconstructive Surgery, Wake Forest Baptist Health, Winston-Salem, NC, 27157, USA.
| | - Michael J Morykwas
- School of Biomedical Engineering and Sciences, Wake Forest University-Virginia Polytechnic Institute and State University, Winston-Salem, NC, 27106, USA
- Department of Plastic and Reconstructive Surgery, Wake Forest Baptist Health, Winston-Salem, NC, 27157, USA
| | - William D Wagner
- School of Biomedical Engineering and Sciences, Wake Forest University-Virginia Polytechnic Institute and State University, Winston-Salem, NC, 27106, USA
- Department of Plastic and Reconstructive Surgery, Wake Forest Baptist Health, Winston-Salem, NC, 27157, USA
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11
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Lan D, Wu B, Zhang H, Chen X, Li Z, Dai F. Novel Bioinspired Nerve Scaffold with High Synchrony between Biodegradation and Nerve Regeneration for Repair of Peripheral Nerve Injury. Biomacromolecules 2023; 24:5451-5466. [PMID: 37917398 DOI: 10.1021/acs.biomac.3c00920] [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: 11/04/2023]
Abstract
The morphological structure reconstruction and functional recovery of long-distance peripheral nerve injury (PNI) are global medical challenges. Biodegradable nerve scaffolds that provide mechanical support for the growth and extension of neurites are a desired way to repair long-distance PNI. However, the synchrony of scaffold degradation and nerve regeneration is still challenging. Here, a novel bioinspired multichannel nerve guide conduit (MNGC) with topographical cues based on silk fibroin and ε-polylysine modification was constructed. This conduit (SF(A) + PLL MNGC) exhibited sufficient mechanical strength, excellent degradability, and favorable promotion of cell growth. Peripheral nerve repairing was evaluated by an in vivo 10 mm rat sciatic model. In vivo evidence demonstrated that SF(A) + PLL MNGC was completely biodegraded in the body within 4 weeks after providing sufficient physical support and guide for neurite extension, and a 10 mm sciatic nerve defect was effectively repaired without scar formation, indicating a high synchronous effect of scaffold biodegradation and nerve regeneration. More importantly, the regenerated nerve of the SF(A) + PLL MNGC group showed comparable morphological reconstruction and functional recovery to that of autologous nerve transplantation. This work proved that the designed SF(A) + PLL MNGC has potential for application in long-distance PNI repair in the clinic.
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Affiliation(s)
- Dongwei Lan
- State Key Laboratory of Resource Insects, Southwest University, Chongqing 400715, China
- College of Sericulture, Textile and Biomass Science, Southwest University, Chongqing 400715, China
| | - Baiqing Wu
- State Key Laboratory of Resource Insects, Southwest University, Chongqing 400715, China
- College of Sericulture, Textile and Biomass Science, Southwest University, Chongqing 400715, China
| | - Haiqiang Zhang
- State Key Laboratory of Resource Insects, Southwest University, Chongqing 400715, China
- College of Sericulture, Textile and Biomass Science, Southwest University, Chongqing 400715, China
| | - Xiang Chen
- State Key Laboratory of Resource Insects, Southwest University, Chongqing 400715, China
- College of Sericulture, Textile and Biomass Science, Southwest University, Chongqing 400715, China
| | - Zhi Li
- State Key Laboratory of Resource Insects, Southwest University, Chongqing 400715, China
- College of Sericulture, Textile and Biomass Science, Southwest University, Chongqing 400715, China
| | - Fangyin Dai
- State Key Laboratory of Resource Insects, Southwest University, Chongqing 400715, China
- Key Laboratory for Sericulture Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, Southwest University, Chongqing 400715, China
- College of Sericulture, Textile and Biomass Science, Southwest University, Chongqing 400715, China
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12
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Dahlin LB. The Dynamics of Nerve Degeneration and Regeneration in a Healthy Milieu and in Diabetes. Int J Mol Sci 2023; 24:15241. [PMID: 37894921 PMCID: PMC10607341 DOI: 10.3390/ijms242015241] [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: 09/01/2023] [Revised: 10/06/2023] [Accepted: 10/09/2023] [Indexed: 10/29/2023] Open
Abstract
Appropriate animal models, mimicking conditions of both health and disease, are needed to understand not only the biology and the physiology of neurons and other cells under normal conditions but also under stress conditions, like nerve injuries and neuropathy. In such conditions, understanding how genes and different factors are activated through the well-orchestrated programs in neurons and other related cells is crucial. Knowledge about key players associated with nerve regeneration intended for axonal outgrowth, migration of Schwann cells with respect to suitable substrates, invasion of macrophages, appropriate conditioning of extracellular matrix, activation of fibroblasts, formation of endothelial cells and blood vessels, and activation of other players in healthy and diabetic conditions is relevant. Appropriate physical and chemical attractions and repulsions are needed for an optimal and directed regeneration and are investigated in various nerve injury and repair/reconstruction models using healthy and diabetic rat models with relevant blood glucose levels. Understanding dynamic processes constantly occurring in neuropathies, like diabetic neuropathy, with concomitant degeneration and regeneration, requires advanced technology and bioinformatics for an integrated view of the behavior of different cell types based on genomics, transcriptomics, proteomics, and imaging at different visualization levels. Single-cell-transcriptional profile analysis of different cells may reveal any heterogeneity among key players in peripheral nerves in health and disease.
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Affiliation(s)
- Lars B. Dahlin
- Department of Translational Medicine—Hand Surgery, Lund University, SE-205 02 Malmö, Sweden; ; Tel.: +46-40-33-17-24
- Department of Hand Surgery, Skåne University Hospital, SE-205 02 Malmö, Sweden
- Department of Biomedical and Clinical Sciences, Linköping University, SE-581 83 Linköping, Sweden
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13
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da Silva VA, Bobotis BC, Correia FF, Lima-Vasconcellos TH, Chiarantin GMD, De La Vega L, Lombello CB, Willerth SM, Malmonge SM, Paschon V, Kihara AH. The Impact of Biomaterial Surface Properties on Engineering Neural Tissue for Spinal Cord Regeneration. Int J Mol Sci 2023; 24:13642. [PMID: 37686446 PMCID: PMC10488158 DOI: 10.3390/ijms241713642] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 08/24/2023] [Accepted: 08/26/2023] [Indexed: 09/10/2023] Open
Abstract
Tissue engineering for spinal cord injury (SCI) remains a complex and challenging task. Biomaterial scaffolds have been suggested as a potential solution for supporting cell survival and differentiation at the injury site. However, different biomaterials display multiple properties that significantly impact neural tissue at a cellular level. Here, we evaluated the behavior of different cell lines seeded on chitosan (CHI), poly (ε-caprolactone) (PCL), and poly (L-lactic acid) (PLLA) scaffolds. We demonstrated that the surface properties of a material play a crucial role in cell morphology and differentiation. While the direct contact of a polymer with the cells did not cause cytotoxicity or inhibit the spread of neural progenitor cells derived from neurospheres (NPCdn), neonatal rat spinal cord cells (SCC) and NPCdn only attached and matured on PCL and PLLA surfaces. Scanning electron microscopy and computational analysis suggested that cells attached to the material's surface emerged into distinct morphological populations. Flow cytometry revealed a higher differentiation of neural progenitor cells derived from human induced pluripotent stem cells (hiPSC-NPC) into glial cells on all biomaterials. Immunofluorescence assays demonstrated that PCL and PLLA guided neuronal differentiation and network development in SCC. Our data emphasize the importance of selecting appropriate biomaterials for tissue engineering in SCI treatment.
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Affiliation(s)
- Victor A. da Silva
- Laboratório de Neurogenética, Universidade Federal do ABC, Alameda da Universidade s/n, São Bernardo do Campo 09606-070, SP, Brazil
| | - Bianca C. Bobotis
- Laboratório de Neurogenética, Universidade Federal do ABC, Alameda da Universidade s/n, São Bernardo do Campo 09606-070, SP, Brazil
| | - Felipe F. Correia
- Laboratório de Neurogenética, Universidade Federal do ABC, Alameda da Universidade s/n, São Bernardo do Campo 09606-070, SP, Brazil
| | - Théo H. Lima-Vasconcellos
- Laboratório de Neurogenética, Universidade Federal do ABC, Alameda da Universidade s/n, São Bernardo do Campo 09606-070, SP, Brazil
| | - Gabrielly M. D. Chiarantin
- Laboratório de Neurogenética, Universidade Federal do ABC, Alameda da Universidade s/n, São Bernardo do Campo 09606-070, SP, Brazil
| | - Laura De La Vega
- Department of Mechanical Engineering, University of Victoria, Victoria, BC V8W 2Y2, Canada
| | - Christiane B. Lombello
- Centro de Engenharia, Modelagem e Ciências Sociais Aplicadas, Universidade Federal do ABC, São Bernardo do Campo 09606-070, SP, Brazil
| | - Stephanie M. Willerth
- Department of Mechanical Engineering, University of Victoria, Victoria, BC V8W 2Y2, Canada
- Division of Medical Sciences, University of Victoria, Victoria, BC V8W 2Y2, Canada
| | - Sônia M. Malmonge
- Centro de Engenharia, Modelagem e Ciências Sociais Aplicadas, Universidade Federal do ABC, São Bernardo do Campo 09606-070, SP, Brazil
| | - Vera Paschon
- Laboratório de Neurogenética, Universidade Federal do ABC, Alameda da Universidade s/n, São Bernardo do Campo 09606-070, SP, Brazil
| | - Alexandre H. Kihara
- Laboratório de Neurogenética, Universidade Federal do ABC, Alameda da Universidade s/n, São Bernardo do Campo 09606-070, SP, Brazil
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14
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Tagandurdyyeva NA, Trube MA, Shemyakin IO, Solomitskiy DN, Medvedev GV, Dresvyanina EN, Nashchekina YA, Ivan’kova EM, Dobrovol’skaya IP, Kamalov AM, Sukhorukova EG, Moskalyuk OA, Yudin VE. Properties of Resorbable Conduits Based on Poly(L-Lactide) Nanofibers and Chitosan Fibers for Peripheral Nerve Regeneration. Polymers (Basel) 2023; 15:3323. [PMID: 37571217 PMCID: PMC10422266 DOI: 10.3390/polym15153323] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 07/28/2023] [Accepted: 08/02/2023] [Indexed: 08/13/2023] Open
Abstract
New tubular conduits have been developed for the regeneration of peripheral nerves and the repair of defects that are larger than 3 cm. The conduits consist of a combination of poly(L-lactide) nanofibers and chitosan composite fibers with chitin nanofibrils. In vitro studies were conducted to assess the biocompatibility of the conduits using human embryonic bone marrow stromal cells (FetMSCs). The studies revealed good adhesion and differentiation of the cells on the conduits just one day after cultivation. Furthermore, an in vivo study was carried out to evaluate motor-coordination disorders using the sciatic nerve functional index (SFI) assessment. The presence of chitosan monofibers and chitosan composite fibers with chitin nanofibrils in the conduit design increased the regeneration rate of the sciatic nerve, with an SFI value ranging from 76 to 83. The degree of recovery of nerve conduction was measured by the amplitude of M-response, which showed a 46% improvement. The conduit design imitates the oriented architecture of the nerve, facilitates electrical communication between the damaged nerve's ends, and promotes the direction of nerve growth, thereby increasing the regeneration rate.
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Affiliation(s)
- Nurjemal A. Tagandurdyyeva
- Institute of Biomedical Systems and Biotechnology, Peter the Great St. Petersburg Polytechnic University, Polytekhnicheskaya Str., 29, Saint Petersburg 195251, Russia;
| | - Maxim A. Trube
- Institute of Medicine, RUDN University, Miklukho-Maklaya Str., 6, Moscow 117198, Russia;
| | - Igor’ O. Shemyakin
- Scientific Research Center, Pavlov First Saint-Petersburg State Medical University, L’va Tolstogo Str., 6-8, Saint Petersburg 197022, Russia; (I.O.S.); (D.N.S.); (E.G.S.)
| | - Denis N. Solomitskiy
- Scientific Research Center, Pavlov First Saint-Petersburg State Medical University, L’va Tolstogo Str., 6-8, Saint Petersburg 197022, Russia; (I.O.S.); (D.N.S.); (E.G.S.)
| | - German V. Medvedev
- Medsi Clinic, Department of Plastic Surgery, Marata Str., 6A, Saint Petersburg 191025, Russia;
| | - Elena N. Dresvyanina
- Institute of Textile and Fashion, Saint Petersburg State University of Industrial Technologies and Design, B. Morskaya Str., 18, Saint Petersburg 191186, Russia;
| | - Yulia A. Nashchekina
- Cell Technologies Center, Institute of Cytology Russian Academy of Sciences, Tikhoretsky Ave., 4, Saint Petersburg 194064, Russia;
| | - Elena M. Ivan’kova
- Laboratory of Mechanics of Polymers and Composites, Institute of Macromolecular Compounds Russian Academy of Science, Bol’shoi Prospect V.O. 31, Saint Petersburg 199004, Russia; (E.M.I.); (I.P.D.); (V.E.Y.)
| | - Irina P. Dobrovol’skaya
- Laboratory of Mechanics of Polymers and Composites, Institute of Macromolecular Compounds Russian Academy of Science, Bol’shoi Prospect V.O. 31, Saint Petersburg 199004, Russia; (E.M.I.); (I.P.D.); (V.E.Y.)
| | - Almaz M. Kamalov
- Institute of Biomedical Systems and Biotechnology, Peter the Great St. Petersburg Polytechnic University, Polytekhnicheskaya Str., 29, Saint Petersburg 195251, Russia;
| | - Elena G. Sukhorukova
- Scientific Research Center, Pavlov First Saint-Petersburg State Medical University, L’va Tolstogo Str., 6-8, Saint Petersburg 197022, Russia; (I.O.S.); (D.N.S.); (E.G.S.)
| | - Olga A. Moskalyuk
- Laboratory of Polymer and Composite Materials–SmartTextiles, IRC–X-ray Coherent Optics, Immanuel Kant Baltic Federal University, A. Nevskogo Str., 14, Kaliningrad 236041, Russia
| | - Vladimir E. Yudin
- Laboratory of Mechanics of Polymers and Composites, Institute of Macromolecular Compounds Russian Academy of Science, Bol’shoi Prospect V.O. 31, Saint Petersburg 199004, Russia; (E.M.I.); (I.P.D.); (V.E.Y.)
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15
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Zhou X, Yu M, Chen D, Deng C, Zhang Q, Gu X, Ding F. Chitosan Nerve Grafts Incorporated with SKP-SC-EVs Induce Peripheral Nerve Regeneration. Tissue Eng Regen Med 2023; 20:309-322. [PMID: 36877455 PMCID: PMC10070581 DOI: 10.1007/s13770-022-00517-6] [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: 11/15/2022] [Revised: 12/20/2022] [Accepted: 12/25/2022] [Indexed: 03/07/2023] Open
Abstract
BACKGROUND Repair of long-distance peripheral nerve defects remains an important clinical problem. Nerve grafts incorporated with extracellular vesicles (EVs) from various cell types have been developed to bridge peripheral nerve defects. In our previous research, EVs obtained from skin-derived precursor Schwann cells (SKP-SC-EVs) were demonstrated to promote neurite outgrowth in cultured cells and facilitate nerve regeneration in animal studies. METHODS To further assess the functions of SKP-SC-EVs in nerve repair, we incorporated SKP-SC-EVs and Matrigel into chitosan nerve conduits (EV-NG) for repairing a 15-mm long-distance sciatic nerve defect in a rat model. Behavioral analysis, electrophysiological recording, histological investigation, molecular analysis, and morphometric assessment were carried out. RESULTS The results revealed EV-NG significantly improved motor and sensory function recovery compared with nerve conduits (NG) without EVs incorporation. The outgrowth and myelination of regenerated axons were improved, while the atrophy of target muscles induced by denervation was alleviated after EVs addition. CONCLUSION Our data indicated SKP-SC-EVs incorporation into nerve grafts represents a promising method for extended peripheral nerve damage repair.
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Affiliation(s)
- Xinyang Zhou
- School of Biology and Basic Medical Sciences, Soochow University, Suzhou, China
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Nantong University, 19 Qixiu Road, Nantong, 226001, Jiangsu, China
| | - Miaomei Yu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Nantong University, 19 Qixiu Road, Nantong, 226001, Jiangsu, China
- Clinical Medical Research Center, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Daiyue Chen
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Nantong University, 19 Qixiu Road, Nantong, 226001, Jiangsu, China
| | - Chunyan Deng
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Nantong University, 19 Qixiu Road, Nantong, 226001, Jiangsu, China
| | - Qi Zhang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Nantong University, 19 Qixiu Road, Nantong, 226001, Jiangsu, China
| | - Xiaosong Gu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Nantong University, 19 Qixiu Road, Nantong, 226001, Jiangsu, China
| | - Fei Ding
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Nantong University, 19 Qixiu Road, Nantong, 226001, Jiangsu, China.
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16
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Reshamwala R, Shah M. Regenerative Approaches in the Nervous System. Regen Med 2023. [DOI: 10.1007/978-981-19-6008-6_11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
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17
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Chang FC, Zhou Y, James MM, Zareie HM, Ando Y, Yang J, Zhang M. Effect of Degree of Deacetylation of Chitosan/Chitin on Human Neural Stem Cell Culture. Macromol Biosci 2023; 23:e2200389. [PMID: 36281904 DOI: 10.1002/mabi.202200389] [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: 10/04/2022] [Indexed: 01/19/2023]
Abstract
Stem cell therapy and research for neural diseases depends on reliable reproduction of neural stem cells. Chitosan-based materials have been proposed as a substrate for culturing human neural stem cells (hNSCs) in the pursuit of clinically compatible culture conditions that are chemically defined and compliant with good manufacturing practices. The physical and biochemical properties of chitosan and chitin are strongly regulated by the degree of deacetylation (DD). However, the effect of DD on hNSC behavior has not been systematically investigated. In this study, films with DD ranging from 93% to 14% are fabricated with chitosan and chitin. Under xeno-free conditions, hNSCs proliferate preferentially on films with a higher DD, exhibiting adherent morphology and retaining multipotency. Lowering the DD leads to formation of neural stem cell spheroids due to unsteady adhesion. The neural spheroids present NSC multipotency protein expression reduction and cytoplasmic translocation. This study provides an insight into the influence of the DD on hNSCs behavior and may serve as a guideline for hNSC research using chitosan-based biomaterials. It demonstrates the capability of controlling hNSC fate by simply tailoring the DD of chitosan.
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Affiliation(s)
- Fei-Chien Chang
- Department of Materials Science and Engineering, University of Washington, Seattle, WA, 98195, USA
| | - Yang Zhou
- Department of Materials Science and Engineering, University of Washington, Seattle, WA, 98195, USA
| | - Matthew Michael James
- Department of Materials Science and Engineering, University of Washington, Seattle, WA, 98195, USA
| | - Hadi M Zareie
- Department of Materials Science and Engineering, University of Washington, Seattle, WA, 98195, USA.,School of Mathematical and Physical Science, University of Technology, Ultimo, Sydney, NSW, 2007, Australia
| | - Yoshiki Ando
- Materials Department, Medical R&D Center, Corporate R&D Group, KYOCERA Corporation, Yasu, Shiga, 520-2362, Japan
| | - Jihui Yang
- Department of Materials Science and Engineering, University of Washington, Seattle, WA, 98195, USA
| | - Miqin Zhang
- Department of Materials Science and Engineering, University of Washington, Seattle, WA, 98195, USA
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18
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Kong Y, Kuss M, Shi Y, Fang F, Xue W, Shi W, Liu Y, Zhang C, Zhong P, Duan B. Exercise facilitates regeneration after severe nerve transection and further modulates neural plasticity. Brain Behav Immun Health 2022; 26:100556. [PMID: 36405423 PMCID: PMC9673108 DOI: 10.1016/j.bbih.2022.100556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 11/03/2022] [Accepted: 11/11/2022] [Indexed: 11/13/2022] Open
Abstract
Patients with severe traumatic peripheral nerve injury (PNI) always suffer from incomplete recovery and poor functional outcome. Physical exercise-based rehabilitation, as a non-invasive interventional strategy, has been widely acknowledged to improve PNI recovery by promoting nerve regeneration and relieving pain. However, effects of exercise on chronic plastic changes following severe traumatic PNIs have been limitedly discussed. In this study, we created a long-gap sciatic nerve transection followed by autograft bridging in rats and tested the therapeutic functions of treadmill running with low intensity and late initiation. We demonstrated that treadmill running effectively facilitated nerve regeneration and prevented muscle atrophy and thus improved sensorimotor functions and walking performance. Furthermore, exercise could reduce inflammation at the injured nerve as well as prevent the overexpression of TRPV1, a pain sensor, in primary afferent sensory neurons. In the central nervous system, we found that PNI induced transcriptive changes at the ipsilateral lumber spinal dorsal horn, and exercise could reverse the differential expression for genes involved in the Notch signaling pathway. In addition, through neural imaging techniques, we found volumetric, microstructural, metabolite, and neuronal activity changes in supraspinal regions of interest (i.e., somatosensory cortex, motor cortex, hippocampus, etc.) after the PNI, some of which could be reversed through treadmill running. In summary, treadmill running with late initiation could promote recovery from long-gap nerve transection, and while it could reverse maladaptive plasticity after the PNI, exercise may also ameliorate comorbidities, such as chronic pain, mental depression, and anxiety in the long term.
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Affiliation(s)
- Yunfan Kong
- Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, NE, 68198, USA
- Division of Cardiology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Mitchell Kuss
- Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, NE, 68198, USA
- Division of Cardiology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Yu Shi
- School of Biological Sciences, University of Nebraska Lincoln, Lincoln, NE, 68588, USA
| | - Fang Fang
- Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, NE, 68198, USA
- Division of Cardiology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Wen Xue
- Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, NE, 68198, USA
- Division of Cardiology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Wen Shi
- Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, NE, 68198, USA
- Division of Cardiology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Yutong Liu
- Department of Radiology, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Chi Zhang
- School of Biological Sciences, University of Nebraska Lincoln, Lincoln, NE, 68588, USA
- Center for Plant Science Innovation, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA
| | - Peng Zhong
- Department of Neurological Sciences, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Bin Duan
- Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, NE, 68198, USA
- Division of Cardiology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, 68198, USA
- Department of Surgery, College of Medicine, University of Nebraska Medical Center, Omaha, NE, 68198, USA
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA
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19
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Multichannel nerve conduit based on chitosan derivates for peripheral nerve regeneration and Schwann cell survival. Carbohydr Polym 2022; 301:120327. [DOI: 10.1016/j.carbpol.2022.120327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Revised: 11/05/2022] [Accepted: 11/07/2022] [Indexed: 11/13/2022]
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20
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Duan G, Li C, Yan X, Yang S, Wang S, Sun X, Zhao L, Song T, Pan Y, Wang X. Construction of a mineralized collagen nerve conduit for peripheral nerve injury repair. Regen Biomater 2022; 10:rbac089. [PMID: 36683739 PMCID: PMC9847629 DOI: 10.1093/rb/rbac089] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 10/12/2022] [Accepted: 10/26/2022] [Indexed: 01/19/2023] Open
Abstract
A new nerve guidance conduits (NGCs) named MC@Col containing Type I collagen (Col) and mineralized collagen (MC) was developed, enhancing mechanical and degradation behavior. The physicochemical properties, the mechanical properties and in vitro degradation behavior were all evaluated. The adhesion and proliferation of Schwann cells (SCs) were observed. In the in vivo experiment, MC@Col NGC and other conduits including Col, chitosan (CST) and polycaprolactone (PCL) conduit were implanted to repair a 10-mm-long Sprague-Dawley rat's sciatic nerve defect. Histological analyses, morphological analyses, electrophysiological analyses and further gait analyses were all evaluated after implantation in 12 weeks. The strength and degradation performance of the MC@Col NGC were improved by the addition of MC in comparison with pure Col NGC. In vitro cytocompatibility evaluation revealed that the SCs had good viability, attachment and proliferation in the MC@Col. In in vivo results, the regenerative outcomes of MC@Col NGC were close to those by an autologous nerve graft in some respects, but superior to those by Col, CST and PCL conduits. The MC@Col NGC exhibited good mechanical performance as well as biocompatibility to bridge nerve gap and guide nerve regeneration, thus showing great promising potential as a new type of conduit in clinical applications.
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Affiliation(s)
- Guman Duan
- State Key Laboratory of New Ceramics and Fine Processing, Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China,Department of Orthopedics, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, China
| | - Chengli Li
- State Key Laboratory of New Ceramics and Fine Processing, Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China,Department of Orthopedics, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, China
| | - Xiaoqing Yan
- State Key Laboratory of New Ceramics and Fine Processing, Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China,Department of Orthopedics, Beijing Changping District Hospital, Beijing 102202, China
| | - Shuhui Yang
- State Key Laboratory of New Ceramics and Fine Processing, Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Shuo Wang
- State Key Laboratory of New Ceramics and Fine Processing, Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Xiaodan Sun
- State Key Laboratory of New Ceramics and Fine Processing, Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Lingyun Zhao
- State Key Laboratory of New Ceramics and Fine Processing, Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Tianxi Song
- Beijing Allgens Medical Science and Technology Co., Ltd, Beijing 100176, China
| | - Yongwei Pan
- Correspondence address. Tel: 86-10-62782966, E-mail: (X.W.); (Y.P.)
| | - Xiumei Wang
- Correspondence address. Tel: 86-10-62782966, E-mail: (X.W.); (Y.P.)
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Sarhane KA, Qiu C, Harris TG, Hanwright PJ, Mao HQ, Tuffaha SH. Translational bioengineering strategies for peripheral nerve regeneration: opportunities, challenges, and novel concepts. Neural Regen Res 2022; 18:1229-1234. [PMID: 36453398 PMCID: PMC9838159 DOI: 10.4103/1673-5374.358616] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Peripheral nerve injuries remain a challenging problem in need of better treatment strategies. Despite best efforts at surgical reconstruction and postoperative rehabilitation, patients are often left with persistent, debilitating motor and sensory deficits. There are currently no therapeutic strategies proven to enhance the regenerative process in humans. A clinical need exists for the development of technologies to promote nerve regeneration and improve functional outcomes. Recent advances in the fields of tissue engineering and nanotechnology have enabled biomaterial scaffolds to modulate the host response to tissue repair through tailored mechanical, chemical, and conductive cues. New bioengineered approaches have enabled targeted, sustained delivery of protein therapeutics with the capacity to unlock the clinical potential of a myriad of neurotrophic growth factors that have demonstrated promise in enhancing regenerative outcomes. As such, further exploration of combinatory strategies leveraging these technological advances may offer a pathway towards clinically translatable solutions to advance the care of patients with peripheral nerve injuries. This review first presents the various emerging bioengineering strategies that can be applied for the management of nerve gap injuries. We cover the rationale and limitations for their use as an alternative to autografts, focusing on the approaches to increase the number of regenerating axons crossing the repair site, and facilitating their growth towards the distal stump. We also discuss the emerging growth factor-based therapeutic strategies designed to improve functional outcomes in a multimodal fashion, by accelerating axonal growth, improving the distal regenerative environment, and preventing end-organs atrophy.
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Affiliation(s)
- Karim A. Sarhane
- Department of Plastic and Reconstructive Surgery, Peripheral Nerve Research Laboratory, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Chenhu Qiu
- Department of Materials Science and Engineering, Johns Hopkins University Whiting School of Engineering, Baltimore, MD, USA,Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD, USA,Translational Tissue Engineering Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Thomas G.W. Harris
- Department of Plastic and Reconstructive Surgery, Peripheral Nerve Research Laboratory, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Philip J. Hanwright
- Department of Plastic and Reconstructive Surgery, Peripheral Nerve Research Laboratory, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Hai-Quan Mao
- Department of Materials Science and Engineering, Johns Hopkins University Whiting School of Engineering, Baltimore, MD, USA,Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD, USA,Translational Tissue Engineering Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA,Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Sami H. Tuffaha
- Department of Plastic and Reconstructive Surgery, Peripheral Nerve Research Laboratory, Johns Hopkins University School of Medicine, Baltimore, MD, USA,Correspondence to: Sami H. Tuffaha, .
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Chitosan-based therapeutic systems and their potentials in treatment of oral diseases. Int J Biol Macromol 2022; 222:3178-3194. [DOI: 10.1016/j.ijbiomac.2022.10.090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 09/09/2022] [Accepted: 10/10/2022] [Indexed: 11/05/2022]
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Olakowska E, Wlaszczuk A, Turek A, Borecka A, Liskiewicz A, Wawro D, Kasperczyk J, Jedrzejowska-Szypulka H. Effects of 17-β-estradiol released from shape-memory terpolymer rods on sciatic nerve regeneration after injury and repair with chitosan nerve conduit in female rats. J Appl Biomed 2022; 20:87-97. [PMID: 36218129 DOI: 10.32725/jab.2022.010] [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: 07/23/2021] [Accepted: 07/07/2022] [Indexed: 06/16/2023] Open
Abstract
The aim of this study was to assess 17-β-estradiol (E2) influence on sciatic nerve regeneration after injury followed by a repair with chitosan conduit in ovariectomized female rats. The study was performed in 2 groups (n = 16) of rats: OVChit - after excision of a fragment of the sciatic nerve, a chitosan conduit was implanted; OVChitE10 group - additionally to chitosan conduit, shape-memory terpolymer rods based on poly(L-lactide-co-glycolide- co-trimethylene carbonate) releasing 17-β-estradiol for 20 weeks were implanted. The mean number of regenerating axons and mean fiber area were significantly greater in 17-β-estradiol-treated animals. In this group, the infiltrate of leukocytes was diminished. The presence of 17-β-estradiol receptors alpha and beta in motoneurons in the spinal cord were discovered. This may indicate the location where 17-β-estradiol affects the regeneration of the injured nerve. Estradiol released from the terpolymer rods for 20 weeks could enhance, to some extent, sciatic nerve regeneration after injury, and diminish the inflammatory reaction. In the future, 17-β-estradiol entrapped in terpolymer rods could be used in the repair of injured peripheral nerves, but there is a need for further studies.
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Affiliation(s)
- Edyta Olakowska
- Medical University of Silesia, Faculty of Medical Sciences in Katowice, Department of Physiology, Katowice, Poland
| | - Adam Wlaszczuk
- Medical University of Silesia, Faculty of Medical Sciences in Katowice, Department of Physiology, Katowice, Poland
| | - Artur Turek
- Medical University of Silesia, Faculty of Pharmaceutical Sciences in Sosnowiec, Department of Biopharmacy, Sosnowiec, Poland
| | - Aleksandra Borecka
- Polish Academy of Sciences, Centre of Polymer and Carbon Materials, Zabrze, Poland
| | - Arkadiusz Liskiewicz
- Medical University of Silesia, Faculty of Medical Sciences in Katowice, Department of Physiology, Katowice, Poland
| | - Dariusz Wawro
- Institute of Biopolymers and Chemical Fibres, Lodz, Poland
| | - Janusz Kasperczyk
- Medical University of Silesia, Faculty of Pharmaceutical Sciences in Sosnowiec, Department of Biopharmacy, Sosnowiec, Poland
- Polish Academy of Sciences, Centre of Polymer and Carbon Materials, Zabrze, Poland
| | - Halina Jedrzejowska-Szypulka
- Medical University of Silesia, Faculty of Medical Sciences in Katowice, Department of Physiology, Katowice, Poland
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Sun S, Lu D, Zhong H, Li C, Yang N, Huang B, Ni S, Li X. Donors for nerve transplantation in craniofacial soft tissue injuries. Front Bioeng Biotechnol 2022; 10:978980. [PMID: 36159691 PMCID: PMC9490317 DOI: 10.3389/fbioe.2022.978980] [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: 06/27/2022] [Accepted: 08/16/2022] [Indexed: 11/13/2022] Open
Abstract
Neural tissue is an important soft tissue; for instance, craniofacial nerves govern several aspects of human behavior, including the expression of speech, emotion transmission, sensation, and motor function. Therefore, nerve repair to promote functional recovery after craniofacial soft tissue injuries is indispensable. However, the repair and regeneration of craniofacial nerves are challenging due to their intricate anatomical and physiological characteristics. Currently, nerve transplantation is an irreplaceable treatment for segmental nerve defects. With the development of emerging technologies, transplantation donors have become more diverse. The present article reviews the traditional and emerging alternative materials aimed at advancing cutting-edge research on craniofacial nerve repair and facilitating the transition from the laboratory to the clinic. It also provides a reference for donor selection for nerve repair after clinical craniofacial soft tissue injuries. We found that autografts are still widely accepted as the first options for segmental nerve defects. However, allogeneic composite functional units have a strong advantage for nerve transplantation for nerve defects accompanied by several tissue damages or loss. As an alternative to autografts, decellularized tissue has attracted increasing attention because of its low immunogenicity. Nerve conduits have been developed from traditional autologous tissue to composite conduits based on various synthetic materials, with developments in tissue engineering technology. Nerve conduits have great potential to replace traditional donors because their structures are more consistent with the physiological microenvironment and show self-regulation performance with improvements in 3D technology. New materials, such as hydrogels and nanomaterials, have attracted increasing attention in the biomedical field. Their biocompatibility and stimuli-responsiveness have been gradually explored by researchers in the regeneration and regulation of neural networks.
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Affiliation(s)
- Sishuai Sun
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, China
- Jinan Microecological Biomedicine Shandong Laboratory and Shandong Key Laboratory of Brain Function Remodeling, Jinan, China
| | - Di Lu
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, China
- Jinan Microecological Biomedicine Shandong Laboratory and Shandong Key Laboratory of Brain Function Remodeling, Jinan, China
| | - Hanlin Zhong
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, China
- Jinan Microecological Biomedicine Shandong Laboratory and Shandong Key Laboratory of Brain Function Remodeling, Jinan, China
| | - Chao Li
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, China
- Jinan Microecological Biomedicine Shandong Laboratory and Shandong Key Laboratory of Brain Function Remodeling, Jinan, China
| | - Ning Yang
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, China
- Jinan Microecological Biomedicine Shandong Laboratory and Shandong Key Laboratory of Brain Function Remodeling, Jinan, China
| | - Bin Huang
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, China
- Jinan Microecological Biomedicine Shandong Laboratory and Shandong Key Laboratory of Brain Function Remodeling, Jinan, China
| | - Shilei Ni
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, China
- Jinan Microecological Biomedicine Shandong Laboratory and Shandong Key Laboratory of Brain Function Remodeling, Jinan, China
- *Correspondence: Shilei Ni, ; Xingang Li,
| | - Xingang Li
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, China
- Jinan Microecological Biomedicine Shandong Laboratory and Shandong Key Laboratory of Brain Function Remodeling, Jinan, China
- *Correspondence: Shilei Ni, ; Xingang Li,
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Muratori L, Fregnan F, Maurina M, Haastert-Talini K, Ronchi G. The Potential Benefits of Dietary Polyphenols for Peripheral Nerve Regeneration. Int J Mol Sci 2022; 23:ijms23095177. [PMID: 35563568 PMCID: PMC9102183 DOI: 10.3390/ijms23095177] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 04/29/2022] [Accepted: 05/03/2022] [Indexed: 12/04/2022] Open
Abstract
Peripheral nerves are frequently affected by lesions caused by trauma (work accidents, car incidents, combat injuries) and following surgical procedures (for instance cancer resection), resulting in loss of motor and sensory function with lifelong impairments. Irrespective of the intrinsic capability of the peripheral nervous system for regeneration, spontaneous or surgically supported regeneration is often unsatisfactory with the limited functional success of nerve repair. For this reason, many efforts have been made to improve the regeneration process. Beyond innovative microsurgical methods that, in certain cases, are necessary to repair nerve injuries, different nonsurgical treatment approaches and adjunctive therapies have been investigated to enhance nerve regeneration. One possibility could be taking advantage of a healthy diet or lifestyle and their relation with proper body functions. Over the years, scientific evidence has been obtained on the benefits of the intake of polyphenols or polyphenol-rich foods in humans, highlighting the neuroprotective effects of these compounds in many neurodegenerative diseases. In order to improve the available knowledge about the potential beneficial role of polyphenols in the process of peripheral nerve regeneration, this review assessed the biological effects of polyphenol administration in supporting and promoting the regenerative process after peripheral nerve injury.
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Affiliation(s)
- Luisa Muratori
- Department of Clinical and Biological Sciences, University of Torino, 10043 Orbassano, (Torino), Italy; (L.M.); (F.F.); (M.M.)
- Neuroscience Institute Cavalieri Ottolenghi (NICO), 10043 Orbassano, (Torino), Italy
| | - Federica Fregnan
- Department of Clinical and Biological Sciences, University of Torino, 10043 Orbassano, (Torino), Italy; (L.M.); (F.F.); (M.M.)
- Neuroscience Institute Cavalieri Ottolenghi (NICO), 10043 Orbassano, (Torino), Italy
| | - Monica Maurina
- Department of Clinical and Biological Sciences, University of Torino, 10043 Orbassano, (Torino), Italy; (L.M.); (F.F.); (M.M.)
| | - Kirsten Haastert-Talini
- Institute of Neuroanatomy and Cell Biology, Hannover Medical School, 30625 Hannover, Germany;
- Center for Systems Neuroscience (ZSN), 30559 Hannover, Germany
| | - Giulia Ronchi
- Department of Clinical and Biological Sciences, University of Torino, 10043 Orbassano, (Torino), Italy; (L.M.); (F.F.); (M.M.)
- Neuroscience Institute Cavalieri Ottolenghi (NICO), 10043 Orbassano, (Torino), Italy
- Correspondence: ; Tel.: +39-011-6705-433; Fax: +39-011-9038-639
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Xia Y, Wang D, Liu D, Su J, Jin Y, Wang D, Han B, Jiang Z, Liu B. Applications of Chitosan and its Derivatives in Skin and Soft Tissue Diseases. Front Bioeng Biotechnol 2022; 10:894667. [PMID: 35586556 PMCID: PMC9108203 DOI: 10.3389/fbioe.2022.894667] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Accepted: 04/18/2022] [Indexed: 12/13/2022] Open
Abstract
Chitosan and its derivatives are bioactive molecules that have recently been used in various fields, especially in the medical field. The antibacterial, antitumor, and immunomodulatory properties of chitosan have been extensively studied. Chitosan can be used as a drug-delivery carrier in the form of hydrogels, sponges, microspheres, nanoparticles, and thin films to treat diseases, especially those of the skin and soft tissue such as injuries and lesions of the skin, muscles, blood vessels, and nerves. Chitosan can prevent and also treat soft tissue diseases by exerting diverse biological effects such as antibacterial, antitumor, antioxidant, and tissue regeneration effects. Owing to its antitumor properties, chitosan can be used as a targeted therapy to treat soft tissue tumors. Moreover, owing to its antibacterial and antioxidant properties, chitosan can be used in the prevention and treatment of soft tissue infections. Chitosan can stop the bleeding of open wounds by promoting platelet agglutination. It can also promote the regeneration of soft tissues such as the skin, muscles, and nerves. Drug-delivery carriers containing chitosan can be used as wound dressings to promote wound healing. This review summarizes the structure and biological characteristics of chitosan and its derivatives. The recent breakthroughs and future trends of chitosan and its derivatives in therapeutic effects and drug delivery functions including anti-infection, promotion of wound healing, tissue regeneration and anticancer on soft tissue diseases are elaborated.
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Affiliation(s)
- Yidan Xia
- Department of Hand and Foot Surgery, The First Hospital of Jilin University, Changchun, China
| | - Dongxu Wang
- Laboratory Animal Center, College of Animal Science, Jilin University, Changchun, China
| | - Da Liu
- Department of Pharmacy, Changchun University of Chinese Medicine, Changchun, China
| | - Jiayang Su
- Department of Hand and Foot Surgery, The First Hospital of Jilin University, Changchun, China
| | - Ye Jin
- Department of Pharmacy, Changchun University of Chinese Medicine, Changchun, China
| | - Duo Wang
- Department of Hand and Foot Surgery, The First Hospital of Jilin University, Changchun, China
| | - Beibei Han
- Department of Hand and Foot Surgery, The First Hospital of Jilin University, Changchun, China
| | - Ziping Jiang
- Department of Hand and Foot Surgery, The First Hospital of Jilin University, Changchun, China,*Correspondence: Ziping Jiang, ; Bin Liu,
| | - Bin Liu
- Department of Hand and Foot Surgery, The First Hospital of Jilin University, Changchun, China,*Correspondence: Ziping Jiang, ; Bin Liu,
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Yin L, An Y, Chen X, Yan HX, Zhang T, Lu XG, Yan JT. Local vibration therapy promotes the recovery of nerve function in rats with sciatic nerve injury. JOURNAL OF INTEGRATIVE MEDICINE 2022; 20:265-273. [PMID: 35153133 DOI: 10.1016/j.joim.2022.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Accepted: 01/17/2022] [Indexed: 06/14/2023]
Abstract
OBJECTIVE It has been reported that local vibration therapy can benefit recovery after peripheral nerve injury, but the optimized parameters and effective mechanism were unclear. In the present study, we investigated the effect of local vibration therapy of different amplitudes on the recovery of nerve function in rats with sciatic nerve injury (SNI). METHODS Adult male Sprague-Dawley rats were subjected to SNI and then randomly divided into 5 groups: sham group, SNI group, SNI + A-1 mm group, SNI + A-2 mm group, and SNI + A-4 mm group (A refers to the amplitude; n = 10 per group). Starting on the 7th day after model initiation, local vibration therapy was given for 21 consecutive days with a frequency of 10 Hz and an amplitude of 1, 2 or 4 mm for 5 min. The sciatic function index (SFI) was assessed before surgery and on the 7th, 14th, 21st and 28th days after surgery. Tissues were harvested on the 28th day after surgery for morphological, immunofluorescence and Western blot analysis. RESULTS Compared with the SNI group, on the 28th day after surgery, the SFIs of the treatment groups were increased; the difference in the SNI + A-2 mm group was the most obvious (95% confidence interval [CI]: [5.86, 27.09], P < 0.001), and the cross-sectional areas of myocytes in all of the treatment groups were improved. The G-ratios in the SNI + A-1 mm group and SNI + A-2 mm group were reduced significantly (95% CI: [-0.12, -0.02], P = 0.007; 95% CI: [-0.15, -0.06], P < 0.001). In addition, the expressions of S100 and nerve growth factor proteins in the treatment groups were increased; the phosphorylation expressions of ERK1/2 protein in the SNI + A-2 mm group and SNI + A-4 mm group were upregulated (95% CI: [0.03, 0.96], P = 0.038; 95% CI: [0.01, 0.94], P = 0.047, respectively), and the phosphorylation expression of Akt in the SNI + A-1 mm group was upregulated (95% CI: [0.11, 2.07], P = 0.031). CONCLUSION Local vibration therapy, especially with medium amplitude, was able to promote the recovery of nerve function in rats with SNI; this result was linked to the proliferation of Schwann cells and the activation of the ERK1/2 and Akt signaling pathways.
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Affiliation(s)
- Lu Yin
- Department of Rehabilitation Medicine, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China
| | - Yun An
- Department of Tuina, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China
| | - Xiao Chen
- Department of Rehabilitation Medicine, the Second Rehabilitation Hospital of Shanghai, Shanghai 200441, China
| | - Hui-Xin Yan
- Department of Tuina, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China
| | - Tao Zhang
- Department of Tuina, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China
| | - Xin-Gang Lu
- Shanghai Key Laboratory of Clinical Geriatric Medicine, Huadong Hospital, Fudan University, Shanghai 200040, China
| | - Jun-Tao Yan
- Department of Rehabilitation Medicine, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China.
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Redolfi Riva E, D’Alessio A, Micera S. Polysaccharide Layer-by-Layer Coating for Polyimide-Based Neural Interfaces. MICROMACHINES 2022; 13:mi13050692. [PMID: 35630159 PMCID: PMC9146946 DOI: 10.3390/mi13050692] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 04/19/2022] [Accepted: 04/27/2022] [Indexed: 02/01/2023]
Abstract
Implantable flexible neural interfaces (IfNIs) are capable of directly modulating signals of the central and peripheral nervous system by stimulating or recording the action potential. Despite outstanding results in acute experiments on animals and humans, their long-term biocompatibility is hampered by the effects of foreign body reactions that worsen electrical performance and cause tissue damage. We report on the fabrication of a polysaccharide nanostructured thin film as a coating of polyimide (PI)-based IfNIs. The layer-by-layer technique was used to coat the PI surface due to its versatility and ease of manufacturing. Two different LbL deposition techniques were tested and compared: dip coating and spin coating. Morphological and physiochemical characterization showed the presence of a very smooth and nanostructured thin film coating on the PI surface that remarkably enhanced surface hydrophilicity with respect to the bare PI surface for both the deposition techniques. However, spin coating offered more control over the fabrication properties, with the possibility to tune the coating’s physiochemical and morphological properties. Overall, the proposed coating strategies allowed the deposition of a biocompatible nanostructured film onto the PI surface and could represent a valid tool to enhance long-term IfNI biocompatibility by improving tissue/electrode integration.
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Affiliation(s)
- Eugenio Redolfi Riva
- The BioRobotics Institute, Department of Excellence in Robotics and AI, Scuola Superiore Sant’Anna, 56127 Pisa, Italy; (A.D.); (S.M.)
- Correspondence:
| | - Angela D’Alessio
- The BioRobotics Institute, Department of Excellence in Robotics and AI, Scuola Superiore Sant’Anna, 56127 Pisa, Italy; (A.D.); (S.M.)
| | - Silvestro Micera
- The BioRobotics Institute, Department of Excellence in Robotics and AI, Scuola Superiore Sant’Anna, 56127 Pisa, Italy; (A.D.); (S.M.)
- Translational Neuroengineering, Centre for Neuroprosthetics and Institute of Bioengineering, School of Engineering, École Polytechnique Fédérale de Lausanne (EPFL), 1000 Lausanne, Switzerland
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Zhang J, Zhang Y, Jiang YK, Li JA, Wei WF, Shi MP, Wang YB, Jia GL. The effect of poly(lactic-co-glycolic acid) conduit loading insulin-like growth factor 1 modified by a collagen-binding domain on peripheral nerve injury in rats. J Biomed Mater Res B Appl Biomater 2022; 110:2100-2109. [PMID: 35441415 DOI: 10.1002/jbm.b.35064] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 03/17/2022] [Accepted: 03/19/2022] [Indexed: 12/23/2022]
Abstract
Peripheral nerve injury (PNI) exists widely and seriously affects patients' daily lives. However, the effect of nerve repair is still limited, and only 50% of patients can recover useful functions. To overcome these obstacles, collagen-coated poly(lactic-co-glycolic acid) (PLGA) conduits loaded with CBD-IGF-1 were designed and tested in vitro and in vivo. The physical characterization of the conduit was tested by scanning electron microscopy, and the static water contact angle, release rate, and nerve regeneration ability of the conduit were verified in a rat sciatic nerve injury model. The results showed that the PLGA/col/CBD-IGF-1 conduit had a rough surface and good hydrophilicity. CBD-IGF-1 could be released slowly from the PLGA/col/CBD-IGF-1 conduit. In the in vivo experiment, gait analysis and electrophysiological evaluation showed that the sciatic functional index and electrophysiological parameters were best in the group treated with the PLGA/col/CBD-IGF-1 conduit. The pathological examination results for the sciatic nerve and gastrocnemius muscle in the group treated with the PLGA/col/CBD-IGF-1 conduit were better than those in the other three groups. In short, this study demonstrated the beneficial effects of CBD-IGF-1 in nerve regeneration. The PLGA/col/CBD-IGF-1 conduit has therapeutic potential for use in the treatment of PNI.
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Affiliation(s)
- Jun Zhang
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, Jilin, China
| | - Yan Zhang
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, Jilin, China
| | - Yi Kun Jiang
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, Jilin, China
| | - Jian An Li
- Department of Orthopedics, Tianjin Hospital, Tianjin, China
| | - Wan Fu Wei
- Department of Orthopedics, Tianjin Hospital, Tianjin, China
| | - Ming Peng Shi
- College of traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun, Jilin, China
| | - Yan Bing Wang
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, Jilin, China
| | - Guo Liang Jia
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, Jilin, China
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Bergsten E, Rydberg M, Dahlin LB, Zimmerman M. Carpal Tunnel Syndrome and Ulnar Nerve Entrapment at the Elbow Are Not Associated With Plasma Levels of Caspase-3, Caspase-8 or HSP27. Front Neurosci 2022; 16:809537. [PMID: 35310100 PMCID: PMC8931660 DOI: 10.3389/fnins.2022.809537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 01/27/2022] [Indexed: 11/13/2022] Open
Abstract
BackgroundNerve compression disorders, such as carpal tunnel syndrome (CTS) and ulnar entrapment at the elbow (UNE), may be associated with apoptosis and neuroprotective mechanisms in the peripheral nerve that may be detected by biomarkers in the blood. The relationships between CTS and UNE and two biomarkers of apoptosis, i.e., caspase-3 and caspase-8, and the neuroprotective factor Heat Shock Protein 27 (HSP27) in plasma were examined in a population-based cohort.MethodThe biomarkers caspase-3, caspase-8 and HSP27 were measured in plasma at inclusion of 4,284 study participants aged 46–68 years in the population-based Malmö Diet and Cancer study (MDCS). End-point retrieval was made from national registers concerning CTS and UNE. Independent t-test was used to examine the association between caspase-3, caspase-8 and HSP27 plasma levels and incidence of CTS and UNE. Cox proportional hazards regression was used to investigate if plasma levels of caspase-3, caspase-8 and HSP27 affected time to diagnosis of CTS or UNE.ResultsDuring the mean follow-up time of 22 years, 189/4,284 (4%) participants were diagnosed with CTS and 42/4,284 (1%) were diagnosed with UNE. No associations were found between incident CTS or UNE and the biomarkers caspase-3, caspase-8 and HSP27 in plasma.ConclusionThe apoptotic biomarkers caspase-3 and caspase-8 and the neuroprotective factor HSP27 in plasma, factors conceivably related to a nerve injury, are not associated with the nerve compression disorders CTS and UNE in a general population.
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Affiliation(s)
- Elin Bergsten
- Department of Orthopedics, Helsingborg Hospital, Helsingborg, Sweden
- Department of Translational Medicine—Hand Surgery, Lund University, Lund, Sweden
- *Correspondence: Elin Bergsten,
| | - Mattias Rydberg
- Department of Translational Medicine—Hand Surgery, Lund University, Lund, Sweden
- Department of Hand Surgery, Skåne University Hospital, Malmö, Sweden
| | - Lars B. Dahlin
- Department of Translational Medicine—Hand Surgery, Lund University, Lund, Sweden
- Department of Hand Surgery, Skåne University Hospital, Malmö, Sweden
- Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Malin Zimmerman
- Department of Orthopedics, Helsingborg Hospital, Helsingborg, Sweden
- Department of Translational Medicine—Hand Surgery, Lund University, Lund, Sweden
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Dong R, Tian S, Bai J, Yu K, Liu C, Liu L, Tian D. Electrospun Polycaprolactone (PCL)-Amnion Nanofibrous Membrane Promotes Nerve Repair after Neurolysis. J Biomater Appl 2022; 36:1390-1399. [PMID: 34995155 DOI: 10.1177/08853282211060598] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Peripheral nerve adhesion after neurolysis leads to nerve dysfunction, limiting nerve regeneration and functional recovery. We previously developed an electrospun polycaprolactone (PCL)-amnion nanofibrous membrane for preventing adhesion formation. In this study, we investigated the effect of protective nerve wrapping and promoting nerve regeneration in a rat sciatic nerve compression model. A total of 96 SD rats after sciatic nerve chronic compression were randomly divided into three groups: the PCL-amniotic group, in which nerves were wrapped with a PCL-amniotic membrane for treatment; the chitosan group, in which nerves were wrapped with a clinically used chitosan hydrogel; the control group, which involved neurolysis alone without treatment. Twelve weeks postoperatively, the nerve regeneration was evaluated by general and ultrastructure observation, as well as the expressions of neuronal regeneration and inflammatory reaction biomarkers. The nerve functions were assessed with gastrocnemius muscle measurement, hot-plate test, and walking track analysis. Compared with the chitosan hydrogel, the PCL-amnion nanofibrous membrane significantly reduced peripheral nerve adhesion and promoted nerve regeneration. The morphological properties of axons in the nerve wrap group were preserved. Intraneural macrophage invasion, as assessed by the number of CD68-positive cells, was less severe in the PCL-amnion group than in the other groups. Additionally, the gastrocnemius muscle weight and muscle bundle area were significantly higher in the PCL-amnion group than those in the chitosan group. The abilities of sense and movement of the rats in the PCL-amnion group were significantly improved compared to the other groups. In summary, electrospun PCL-amnion nanofibrous membranes effectively prevented post-neurolysis peripheral nerves from developing adhesion, whereas promoted nerve repair and regeneration, which make PCL-amnion nanofibrous membranes a promising biomaterial for clinical application.
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Affiliation(s)
- Ruiyi Dong
- Department of Hand Surgery, 74725The Third Affiliated Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
- Department of Orthopedics, 159363Cangzhou Hospital of Integrated TCM-WM Hebei, Cangzhou, Hebei, China
| | - Siyu Tian
- Department of Hand Surgery, 74725The Third Affiliated Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Jiangbo Bai
- Department of Hand Surgery, 74725The Third Affiliated Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Kunlun Yu
- Department of Hand Surgery, 74725The Third Affiliated Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Chunjie Liu
- Department of Orthopedics, Tangshan Workers Hospital, Tangshan, Hebei, China
| | - Lei Liu
- Department of Orthopedics, Changping District Hospital, Beijing, China
| | - Dehu Tian
- Department of Hand Surgery, 74725The Third Affiliated Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
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Li Y, Ma Z, Ren Y, Lu D, Li T, Li W, Wang J, Ma H, Zhao J. Tissue Engineering Strategies for Peripheral Nerve Regeneration. Front Neurol 2021; 12:768267. [PMID: 34867754 PMCID: PMC8635143 DOI: 10.3389/fneur.2021.768267] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 10/15/2021] [Indexed: 11/13/2022] Open
Abstract
A peripheral nerve injury (PNI) has severe and profound effects on the life of a patient. The therapeutic approach remains one of the most challenging clinical problems. In recent years, many constructive nerve regeneration schemes are proposed at home and abroad. Nerve tissue engineering plays an important role. It develops an ideal nerve substitute called artificial nerve. Given the complexity of nerve regeneration, this review summarizes the pathophysiology and tissue-engineered repairing strategies of the PNI. Moreover, we discussed the scaffolds and seed cells for neural tissue engineering. Furthermore, we have emphasized the role of 3D printing in tissue engineering.
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Affiliation(s)
- Yin Li
- Shanghai Key Laboratory of Orthopaedic Implant, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhenjiang Ma
- Shanghai Key Laboratory of Orthopaedic Implant, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ya Ren
- Southwest JiaoTong University College of Medicine, Chengdu, China
| | - Dezhi Lu
- School of Medicine, Shanghai University, Shanghai, China
| | - Tao Li
- Department of Orthopaedics, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Wentao Li
- Shanghai Key Laboratory of Orthopaedic Implant, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jinwu Wang
- Shanghai Key Laboratory of Orthopaedic Implant, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hui Ma
- Shanghai Key Laboratory of Orthopaedic Implant, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jie Zhao
- Shanghai Key Laboratory of Orthopaedic Implant, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Kunisaki A, Kodama A, Ishikawa M, Ueda T, Lima MD, Kondo T, Adachi N. Carbon-nanotube yarns induce axonal regeneration in peripheral nerve defect. Sci Rep 2021; 11:19562. [PMID: 34599218 PMCID: PMC8486759 DOI: 10.1038/s41598-021-98603-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 09/13/2021] [Indexed: 11/20/2022] Open
Abstract
Carbon nanotubes (CNTs) are cylindrical nanostructures and have unique properties, including flexibility, electrical conductivity, and biocompatibility. We focused on CNTs fabricated with the carbon nanotube yarns (cYarn) as a possible substrate promoting peripheral nerve regeneration with these properties. We bridged a 15 mm rat sciatic nerve defect with five different densities of cYarn. Eight weeks after the surgery, the regenerated axons crossing the CNTs, electromyographical findings, and muscle weight ratio of the lower leg showed recovery of the nerve function by interfacing with cYarn. Furthermore, the sciatic nerve functional index (SFI) at 16 weeks showed improvement in gait function. A 2% CNT density tended to be the most effective for nerve regeneration as measured by both histological axonal regeneration and motor function. We confirmed that CNT yarn promotes peripheral nerve regeneration by using it as a scaffold for repairing nerve defects. Our results support the future clinical application of CNTs for bridging nerve defects as an off-the-shelf material.
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Affiliation(s)
- Atsushi Kunisaki
- Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Akira Kodama
- Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.
| | - Masakazu Ishikawa
- Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Takahiro Ueda
- Nano-Science and Technology Center, LINTEC OF AMERICA, INC., Richardson, USA
| | - Marcio D Lima
- Nano-Science and Technology Center, LINTEC OF AMERICA, INC., Richardson, USA
| | - Takeshi Kondo
- Nano-Science and Technology Center, LINTEC OF AMERICA, INC., Richardson, USA
| | - Nobuo Adachi
- Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
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34
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Wang B, Lu CF, Liu ZY, Han S, Wei P, Zhang DY, Kou YH, Jiang BG. Chitin scaffold combined with autologous small nerve repairs sciatic nerve defects. Neural Regen Res 2021; 17:1106-1114. [PMID: 34558539 PMCID: PMC8552871 DOI: 10.4103/1673-5374.324859] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Although autologous nerve transplantation is the gold standard for treating peripheral nerve defects, it has many clinical limitations. As an alternative, various tissue-engineered nerve grafts have been developed to substitute for autologous nerves. In this study, a novel nerve graft composed of chitin scaffolds and a small autologous nerve was used to repair sciatic nerve defects in rats. The novel nerve graft greatly facilitated regeneration of the sciatic nerve and myelin sheath, reduced atrophy of the target muscle, and effectively restored neurological function. When the epineurium of the small autogenous nerve was removed, the degree of nerve regeneration was similar to that which occurs after autogenous nerve transplantation. These findings suggest that our novel nerve graft might eventually be a new option for the construction of tissue-engineered nerve scaffolds. The study was approved by the Research Ethics Committee of Peking University People's Hospital (approval No. 2019PHE27) on October 18, 2019.
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Affiliation(s)
- Bo Wang
- Department of Orthopedics and Trauma, Key Laboratory of Trauma and Neural Regeneration (Ministry of Education/Peking University), Peking University People's Hospital, Beijing, China
| | - Chang-Feng Lu
- Department of Orthopedics and Trauma, Key Laboratory of Trauma and Neural Regeneration (Ministry of Education/Peking University), Peking University People's Hospital, Beijing, China
| | - Zhong-Yang Liu
- Department of Orthopedics, Chinese PLA General Hospital; National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Beijing, China
| | - Shuai Han
- Department of Orthopedics and Trauma, Key Laboratory of Trauma and Neural Regeneration (Ministry of Education/Peking University), Peking University People's Hospital, Beijing, China
| | - Pi Wei
- Department of Orthopedics and Trauma, Key Laboratory of Trauma and Neural Regeneration (Ministry of Education/Peking University), Peking University People's Hospital, Beijing, China
| | - Dian-Ying Zhang
- Department of Orthopedics and Trauma, Key Laboratory of Trauma and Neural Regeneration (Ministry of Education/Peking University), Peking University People's Hospital, Beijing, China
| | - Yu-Hui Kou
- Department of Orthopedics and Trauma, Key Laboratory of Trauma and Neural Regeneration (Ministry of Education/Peking University), Peking University People's Hospital, Beijing, China
| | - Bao-Guo Jiang
- Department of Orthopedics and Trauma, Key Laboratory of Trauma and Neural Regeneration (Ministry of Education/Peking University), Peking University People's Hospital, Beijing, China
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de Lima GG, Júnior ELDS, Aggio BB, Shee BS, Filho EMDM, Segundo FADS, Fournet MB, Devine DM, Magalhães WLE, de Sá MJC. Nanocellulose for peripheral nerve regeneration in rabbits using citric acid as crosslinker with chitosan and freeze/thawed PVA. Biomed Mater 2021; 16. [PMID: 34330112 DOI: 10.1088/1748-605x/ac199b] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 07/30/2021] [Indexed: 12/12/2022]
Abstract
This work investigates peripheral nerve regeneration using membranes consisting of pure chitosan (CHI), which was further blended with nanofibrillated cellulose, with citric acid as crosslinker, with posterior addition of polyvinyl alcohol, with subsequent freeze thawing. Nanocellulose improves the mechanical and thermal resistance, as well as flexibility of the film, which is ideal for the surgical procedure. The hydrogel presented a slow rate of swelling, which is adequate for cell and drug delivery. A series ofin vitrotests revealed to be non-toxic for neuronal Schwann cell from the peripheral nervous system of Rattus norvegicus, while there was a slight increase in toxicity if crosslink is performed-freeze-thaw. Thein vivoresults, using rabbits with a 5 mm gap nerve defect, revealed that even though pure CHI was able to regenerate the nerve, it did not present functional recovery with only the deep pain attribute being regenerated. When autologous implant was used jointly with the biomaterial membrane, as a covering agent, it revealed a functional recovery within 15 d when cellulose and the hydrogel were introduced, which was attributed to the film charge interaction that may help influence the neuronal axons growth into correct locations. Thus, indicating that this system presents ideal regeneration as nerve conduits.
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Affiliation(s)
- Gabriel G de Lima
- Programa de Pós-Graduação em Engenharia e Ciência dos Materiais-PIPE, Universidade Federal do Paraná, Curitiba, PR, Brazil.,Materials Research Institute, Athlone Institute of Technology, Athlone, Ireland
| | - Emílio L de S Júnior
- Programa de Pós-Graduação em Medicina Veterinária-PPGMV, Universidade Federal de Campina Grande, Campina Grande PB, Brazil
| | - Bruno B Aggio
- Departamento de Química, Universidade Federal do Paraná, Curitiba, Paraná, Brazil
| | - Bor Shin Shee
- Materials Research Institute, Athlone Institute of Technology, Athlone, Ireland
| | - Emanuel M de M Filho
- Programa de Pós-Graduação em Medicina Veterinária-PPGMV, Universidade Federal de Campina Grande, Campina Grande PB, Brazil
| | - Francisco A de S Segundo
- Programa de Pós-Graduação em Medicina Veterinária-PPGMV, Universidade Federal de Campina Grande, Campina Grande PB, Brazil
| | - Margaret B Fournet
- Materials Research Institute, Athlone Institute of Technology, Athlone, Ireland
| | - Declan M Devine
- Materials Research Institute, Athlone Institute of Technology, Athlone, Ireland
| | - Washington L E Magalhães
- Programa de Pós-Graduação em Engenharia e Ciência dos Materiais-PIPE, Universidade Federal do Paraná, Curitiba, PR, Brazil.,Embrapa Florestas, Colombo, Brazil
| | - Marcelo J C de Sá
- Programa de Pós-Graduação em Engenharia e Ciência dos Materiais-PIPE, Universidade Federal do Paraná, Curitiba, PR, Brazil.,Programa de Pós-Graduação em Medicina Veterinária-PPGMV, Universidade Federal de Campina Grande, Campina Grande PB, Brazil
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36
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Stenberg L, Hazer Rosberg DB, Kohyama S, Suganuma S, Dahlin LB. Injury-Induced HSP27 Expression in Peripheral Nervous Tissue Is Not Associated with Any Alteration in Axonal Outgrowth after Immediate or Delayed Nerve Repair. Int J Mol Sci 2021; 22:ijms22168624. [PMID: 34445330 PMCID: PMC8395341 DOI: 10.3390/ijms22168624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 08/03/2021] [Accepted: 08/06/2021] [Indexed: 11/29/2022] Open
Abstract
We investigated injury-induced heat shock protein 27 (HSP27) expression and its association to axonal outgrowth after injury and different nerve repair models in healthy Wistar and diabetic Goto-Kakizaki rats. By immunohistochemistry, expression of HSP27 in sciatic nerves and DRG and axonal outgrowth (neurofilaments) in sciatic nerves were analyzed after no, immediate, and delayed (7-day delay) nerve repairs (7- or 14-day follow-up). An increased HSP27 expression in nerves and in DRG at the uninjured side was associated with diabetes. HSP27 expression in nerves and in DRG increased substantially after the nerve injuries, being higher at the site where axons and Schwann cells interacted. Regression analysis indicated a positive influence of immediate nerve repair compared to an unrepaired injury, but a shortly delayed nerve repair had no impact on axonal outgrowth. Diabetes was associated with a decreased axonal outgrowth. The increased expression of HSP27 in sciatic nerve and DRG did not influence axonal outgrowth. Injured sciatic nerves should appropriately be repaired in healthy and diabetic rats, but a short delay does not influence axonal outgrowth. HSP27 expression in sciatic nerve or DRG, despite an increase after nerve injury with or without a repair, is not associated with any alteration in axonal outgrowth.
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Affiliation(s)
- Lena Stenberg
- Department of Translational Medicine—Hand Surgery, Lund University, 205 02 Malmö, Sweden; (D.B.H.R.); (L.B.D.)
- Correspondence: ; Tel.: +46-730-49-73-76
| | - Derya Burcu Hazer Rosberg
- Department of Translational Medicine—Hand Surgery, Lund University, 205 02 Malmö, Sweden; (D.B.H.R.); (L.B.D.)
- Department of Neurosurgery, Faculty of Medicine, Mugla Sıtkı Kocman University, Mugla 48100, Turkey
| | - Sho Kohyama
- Department of Orthopaedic Surgery, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8575, Japan;
| | - Seigo Suganuma
- Department of Orthopaedic Surgery, Ishikawa Prefectural Central Hospital, Kanazawa 920-8530, Japan;
| | - Lars B. Dahlin
- Department of Translational Medicine—Hand Surgery, Lund University, 205 02 Malmö, Sweden; (D.B.H.R.); (L.B.D.)
- Department of Hand Surgery, Skåne University Hospital, 205 02 Malmö, Sweden
- Department of Biomedical and Clinical Sciences, Linköping University, 581 83 Linköping, Sweden
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37
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Hazer Rosberg DB, Hazer B, Stenberg L, Dahlin LB. Gold and Cobalt Oxide Nanoparticles Modified Poly-Propylene Poly-Ethylene Glycol Membranes in Poly (ε-Caprolactone) Conduits Enhance Nerve Regeneration in the Sciatic Nerve of Healthy Rats. Int J Mol Sci 2021; 22:7146. [PMID: 34281198 PMCID: PMC8268459 DOI: 10.3390/ijms22137146] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 06/21/2021] [Accepted: 06/23/2021] [Indexed: 12/15/2022] Open
Abstract
Reconstruction of nerve defects is a clinical challenge. Autologous nerve grafts as the gold standard treatment may result in an incomplete restoration of extremity function. Biosynthetic nerve conduits are studied widely, but still have limitations. Here, we reconstructed a 10 mm sciatic nerve defect in healthy rats and analyzed nerve regeneration in poly (ε-caprolactone) (PCL) conduits longitudinally divided by gold (Au) and gold-cobalt oxide (AuCoO) nanoparticles embedded in poly-propylene poly-ethylene glycol (PPEG) membranes (AuPPEG or AuCoOPPEG) and compared it with unmodified PPEG-membrane and hollow PCL conduits. After 21 days, we detected significantly better axonal outgrowth, together with higher numbers of activated Schwann cells (ATF3-labelled) and higher HSP27 expression, in reconstructed sciatic nerve and in corresponding dorsal root ganglia (DRG) in the AuPPEG and AuCoOPPEG groups; whereas the number of apoptotic Schwann cells (cleaved caspase 3-labelled) was significantly lower. Furthermore, numbers of activated and apoptotic Schwann cells in the regenerative matrix correlated with axonal outgrowth, whereas HSP27 expression in the regenerative matrix and in DRGs did not show any correlation with axonal outgrowth. We conclude that gold and cobalt-oxide nanoparticle modified membranes in conduits improve axonal outgrowth and increase the regenerative performance of conduits after nerve reconstruction.
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Affiliation(s)
- Derya Burcu Hazer Rosberg
- Department of Hand Surgery, Skåne University Hospital, 205 02 Malmö, Sweden; (L.S.); (L.B.D.)
- Department of Translational Medicine—Hand Surgery, Lund University, 205 02 Malmö, Sweden
- Department of Neurosurgery, Mugla Sitki Kocman University, Mugla 48100, Turkey
| | - Baki Hazer
- Department of Aircraft Airflame Engine Maintenance, Kapadokya University, Ürgüp 50420, Turkey;
- Department of Chemistry, Zonguldak Bülent Ecevit University, Zonguldak 67100, Turkey
| | - Lena Stenberg
- Department of Hand Surgery, Skåne University Hospital, 205 02 Malmö, Sweden; (L.S.); (L.B.D.)
- Department of Translational Medicine—Hand Surgery, Lund University, 205 02 Malmö, Sweden
| | - Lars B. Dahlin
- Department of Hand Surgery, Skåne University Hospital, 205 02 Malmö, Sweden; (L.S.); (L.B.D.)
- Department of Translational Medicine—Hand Surgery, Lund University, 205 02 Malmö, Sweden
- Department of Biomedical and Clinical Sciences, Linköping University, 581 83 Linköping, Sweden
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38
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Tian B, Liu Y, Liu J. Chitosan-based nanoscale and non-nanoscale delivery systems for anticancer drugs: A review. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110533] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Modified Hyaluronic Acid-Laminin-Hydrogel as Luminal Filler for Clinically Approved Hollow Nerve Guides in a Rat Critical Defect Size Model. Int J Mol Sci 2021; 22:ijms22126554. [PMID: 34207389 PMCID: PMC8235360 DOI: 10.3390/ijms22126554] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 06/11/2021] [Accepted: 06/15/2021] [Indexed: 12/17/2022] Open
Abstract
Hollow nerve guidance conduits are approved for clinical use for defect lengths of up to 3 cm. This is because also in pre-clinical evaluation they are less effective in the support of nerve regeneration over critical defect lengths. Hydrogel luminal fillers are thought to improve the regeneration outcome by providing an optimized matrix inside bioartificial nerve grafts. We evaluated here a modified hyaluronic acid-laminin-hydrogel (M-HAL) as luminal filler for two clinically approved hollow nerve guides. Collagen-based and chitosan-based nerve guides were filled with M-HAL in two different concentrations and the regeneration outcome comprehensively studied in the acute repair rat sciatic nerve 15 mm critical defect size model. Autologous nerve graft (ANG) repair served as gold-standard control. At 120 days post-surgery, all ANG rats demonstrated electrodiagnostically detectable motor recovery. Both concentrations of the hydrogel luminal filler induced improved regeneration outcome over empty nerve guides. However, neither combination with collagen- nor chitosan-based nerve guides resulted in functional recovery comparable to the ANG repair. In contrast to our previous studies, we demonstrate here that M-HAL slightly improved the overall performance of either empty nerve guide type in the critical defect size model.
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Zhang F, Zhang N, Xu Q, Zhang L, Zhang C, Liu H, Yu Z, Zhou S, Feng G, Huang F. Decellularized nerve extracellular matrix/chitosan crosslinked by genipin to prepare a moldable nerve repair material. Cell Tissue Bank 2021; 22:419-430. [PMID: 34115245 PMCID: PMC8192270 DOI: 10.1007/s10561-020-09889-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Accepted: 12/04/2020] [Indexed: 01/23/2023]
Abstract
Decellularized nerve extracellular matrix (NECM) composited with chitosan are moldable materials suitable for spinal cord repair. But the rapid biodegradation of the materials may interrupt neural tissue reconstruction in vivo. To improve the stability of the materials, the materials produced by NECM and chitosan hydrogels were crosslinked by genipine, glutaraldehyde or ultraviolet ray. Physicochemical property, degradation and biocompatibility of materials crosslinked by genipin, glutaraldehyde or ultraviolet ray were evaluated. The scaffold crosslinked by genipin possessed a porous structure, and the porosity ratio was 89.07 + 4.90%, the average diameter of pore was 85.32 + 5.34 μm. The crosslinked degree of the scaffold crosslinked by genipin and glutaraldehyde was 75.13 ± 4.87%, 71.25 ± 5.06% respectively; Uncrosslinked scaffold disintegrated when immerged in distilled water while the scaffold crosslinked by genipin and glutaraldehyde group retained their integrity. The scaffold crosslinked by genipin has better water absorption, water retention and anti-enzymatic hydrolysis ability than the other three groups. Cell cytotoxicity showed that the cytotoxicity of scaffold crosslinked by genipin was lower than that crosslinked by glutaraldehyde. The histocompatibility of scaffold crosslinked by genipin was also better than glutaraldehyde group. More cells grew well in the scaffold crosslinked by genipin when co-cultured with L929 cells. The decellularized nerve extracellular matrix/chitosan scaffold crosslinked by the genipin has good mechanical properties, micro structure and biocompatibility, which is an ideal scaffold for the spinal cord tissue engineering.
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Affiliation(s)
- Fangsong Zhang
- Department of Human Anatomy, College of Basic Medical Sciences, Binzhou Medical University, Yantai, 264003, People's Republic of China
- Department of Medical Imagine, Shanghai Mental Health Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200030, People's Republic of China
| | - Naili Zhang
- Department of Human Anatomy, College of Basic Medical Sciences, Binzhou Medical University, Yantai, 264003, People's Republic of China
- Institute of Human Anatomy and Histology and Embryology, Binzhou Medical University, Yantai, 264003, People's Republic of China
| | - Qing Xu
- Yantai Affiliated Hosptial of Binzhou Medical University, Yantai, 264100, People's Republic of China
| | - Luping Zhang
- Department of Human Anatomy, College of Basic Medical Sciences, Binzhou Medical University, Yantai, 264003, People's Republic of China
- Institute of Human Anatomy and Histology and Embryology, Binzhou Medical University, Yantai, 264003, People's Republic of China
| | - Chunlei Zhang
- Department of Human Anatomy, College of Basic Medical Sciences, Binzhou Medical University, Yantai, 264003, People's Republic of China
- Institute of Human Anatomy and Histology and Embryology, Binzhou Medical University, Yantai, 264003, People's Republic of China
| | - Hongfu Liu
- Department of Human Anatomy, College of Basic Medical Sciences, Binzhou Medical University, Yantai, 264003, People's Republic of China
- Institute of Human Anatomy and Histology and Embryology, Binzhou Medical University, Yantai, 264003, People's Republic of China
| | - Zhenhai Yu
- Department of Human Anatomy, College of Basic Medical Sciences, Binzhou Medical University, Yantai, 264003, People's Republic of China
- Institute of Human Anatomy and Histology and Embryology, Binzhou Medical University, Yantai, 264003, People's Republic of China
| | - Shuai Zhou
- Department of Human Anatomy, College of Basic Medical Sciences, Binzhou Medical University, Yantai, 264003, People's Republic of China
- Institute of Human Anatomy and Histology and Embryology, Binzhou Medical University, Yantai, 264003, People's Republic of China
| | - Guoying Feng
- Department of Human Anatomy, College of Basic Medical Sciences, Binzhou Medical University, Yantai, 264003, People's Republic of China
- Institute of Human Anatomy and Histology and Embryology, Binzhou Medical University, Yantai, 264003, People's Republic of China
| | - Fei Huang
- Department of Human Anatomy, College of Basic Medical Sciences, Binzhou Medical University, Yantai, 264003, People's Republic of China.
- Institute of Human Anatomy and Histology and Embryology, Binzhou Medical University, Yantai, 264003, People's Republic of China.
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41
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Ehterami A, Masoomikarimi M, Bastami F, Jafarisani M, Alizadeh M, Mehrabi M, Salehi M. Fabrication and Characterization of Nanofibrous Poly (L-Lactic Acid)/Chitosan-Based Scaffold by Liquid-Liquid Phase Separation Technique for Nerve Tissue Engineering. Mol Biotechnol 2021; 63:818-827. [PMID: 34076821 DOI: 10.1007/s12033-021-00346-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 05/20/2021] [Indexed: 10/21/2022]
Abstract
Fabrication method is one of the essential factors which directly affect on the properties of scaffold. Several techniques have been well established to fabricate nanofibrous scaffolds such as electrospinning. However, preparing a three-dimensional (3-D) interconnected macro-pore scaffold essential for transporting the cell metabolites and nutrients is difficult using the electrospinning method. The main aim of this study was developing a highly porous scaffold by poly (L-lactic acid) (PLLA)/chitosan blend using liquid-liquid phase separation (LLPS) technique, a fast and cost-benefit method, in order to use in nerve tissue engineering. In addition, the effect of different polymeric concentrations on morphology, mechanical properties, hydrophilicity, in vitro degradation rate and pH alteration of the scaffolds were evaluated. Moreover, cell attachment, cell viability and cell proliferation of scaffolds as candidates for nerve tissue engineering was investigated. PLLA/chitosan blend not only had desirable structural properties, porosity, hydrophilicity, mechanical properties, degradation rate and pH alteration but also provided a favorable environment for attachment, viability, and proliferation of human neuroblastoma cells, exhibiting significant potential for nerve tissue engineering applications. However, the polymeric concentration in blend fabrication had influence on both characteristics and cell responses. It concluded that PLLA/chitosan nanofibrous 3-D scaffold fabricated by LLPS method as a suitable candidate for nerve tissue engineering.
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Affiliation(s)
- Arian Ehterami
- Institute for Regenerative Medicine, University of Zurich, Zurich, Switzerland
| | - Masoomeh Masoomikarimi
- Depertment of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Farshid Bastami
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Dental Research Center, Research Institute of Dental Sciences, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Moslem Jafarisani
- Department of Clinical Biochemistry, School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran
| | - Morteza Alizadeh
- Department of Tissue Engineering, School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran
| | - Mohsen Mehrabi
- Department of Medical Nanotechnology, School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran
| | - Majid Salehi
- Department of Tissue Engineering, School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran. .,Sexual Health and Fertility Research Center, Shahroud University of Medical Sciences, Shahroud, Iran. .,Tissue Engineering and Stem Cells Research Center, Shahroud University of Medical Sciences, Shahroud, Iran.
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Powell R, Eleftheriadou D, Kellaway S, Phillips JB. Natural Biomaterials as Instructive Engineered Microenvironments That Direct Cellular Function in Peripheral Nerve Tissue Engineering. Front Bioeng Biotechnol 2021; 9:674473. [PMID: 34113607 PMCID: PMC8185204 DOI: 10.3389/fbioe.2021.674473] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 04/16/2021] [Indexed: 12/25/2022] Open
Abstract
Nerve tissue function and regeneration depend on precise and well-synchronised spatial and temporal control of biological, physical, and chemotactic cues, which are provided by cellular components and the surrounding extracellular matrix. Therefore, natural biomaterials currently used in peripheral nerve tissue engineering are selected on the basis that they can act as instructive extracellular microenvironments. Despite emerging knowledge regarding cell-matrix interactions, the exact mechanisms through which these biomaterials alter the behaviour of the host and implanted cells, including neurons, Schwann cells and immune cells, remain largely unclear. Here, we review some of the physical processes by which natural biomaterials mimic the function of the extracellular matrix and regulate cellular behaviour. We also highlight some representative cases of controllable cell microenvironments developed by combining cell biology and tissue engineering principles.
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Affiliation(s)
- Rebecca Powell
- UCL Centre for Nerve Engineering, University College London, London, United Kingdom.,Department of Pharmacology, UCL School of Pharmacy, University College London, London, United Kingdom
| | - Despoina Eleftheriadou
- UCL Centre for Nerve Engineering, University College London, London, United Kingdom.,Department of Pharmacology, UCL School of Pharmacy, University College London, London, United Kingdom.,Department of Mechanical Engineering, University College London, London, United Kingdom
| | - Simon Kellaway
- UCL Centre for Nerve Engineering, University College London, London, United Kingdom.,Department of Pharmacology, UCL School of Pharmacy, University College London, London, United Kingdom
| | - James B Phillips
- UCL Centre for Nerve Engineering, University College London, London, United Kingdom.,Department of Pharmacology, UCL School of Pharmacy, University College London, London, United Kingdom
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43
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Pop NL, Nan A, Urda-Cimpean AE, Florea A, Toma VA, Moldovan R, Decea N, Mitrea DR, Orasan R. Chitosan Functionalized Magnetic Nanoparticles to Provide Neural Regeneration and Recovery after Experimental Model Induced Peripheral Nerve Injury. Biomolecules 2021; 11:676. [PMID: 33946445 PMCID: PMC8147170 DOI: 10.3390/biom11050676] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 04/26/2021] [Accepted: 04/28/2021] [Indexed: 12/11/2022] Open
Abstract
(1) Background: Peripheral nerve injuries have a great impact on a patient's quality of life and a generally poor outcome regarding functional recovery. Lately, studies have focused on different types of nanoparticles and various natural substances for the treatment of peripheral nerve injuries. This is the case of chitosan, a natural compound from the crustaceans' exoskeleton. The present study proposes to combine chitosan benefic properties to the nanoparticles' ability to transport different substances to specific locations and evaluate the effects of magnetic nanoparticles functionalized with chitosan (CMNPs) on peripheral nerve injuries' rehabilitation by using an in vivo experimental model. (2) Methods: CMNPs treatment was administrated daily, orally, for 21 days to rats subjected to right sciatic nerve lesion and compared to the control group (no treatment) by analyzing the sciatic functional index, pain level, body weight, serum nerve growth factor levels and histology, TEM and EDX analysis at different times during the study. (3) Results: Animals treated with CMNPs had a statistically significant functional outcome compared to the control group regarding: sciatic functional index, pain-like behavior, total body weight, which were confirmed by the histological and TEM images. (4) Conclusions: The results of the study suggest that CMNPs appear to be a promising treatment method for peripheral nerve injuries.
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Affiliation(s)
- Nadina Liana Pop
- Department of Physiology, Iuliu Hațieganu University of Medicine and Pharmacy Cluj-Napoca, Clinicilor Street No. 1-3, 400006 Cluj-Napoca, Cluj County, Romania; (N.L.P.); (R.M.); (N.D.); (R.O.)
| | - Alexandrina Nan
- National Institute for Research and Development of Isotopic and Molecular Technologies, Donath Street No. 67-103, 400293 Cluj-Napoca, Cluj County, Romania;
| | - Andrada Elena Urda-Cimpean
- Department of Informatics and Biostatistics, Iuliu Hațieganu University of Medicine and Pharmacy Cluj-Napoca, Pasteur Street No. 4-6, 400349 Cluj-Napoca, Cluj County, Romania;
| | - Adrian Florea
- Department of Cell and Molecular Biology, Iuliu Haţieganu University of Medicine and Pharmacy, Pasteur Street No. 4-6, 400349 Cluj-Napoca, Cluj County, Romania;
| | - Vlad Alexandru Toma
- Department of Molecular Biology and Biotechnologies, Babeș-Bolyai University, Clinicilor Street No. 4-6, 400000 Cluj-Napoca, Cluj County, Romania;
- Institute of Biological Research, Republicii Street No. 48, 400015 Cluj-Napoca, Cluj County, Romania
| | - Remus Moldovan
- Department of Physiology, Iuliu Hațieganu University of Medicine and Pharmacy Cluj-Napoca, Clinicilor Street No. 1-3, 400006 Cluj-Napoca, Cluj County, Romania; (N.L.P.); (R.M.); (N.D.); (R.O.)
| | - Nicoleta Decea
- Department of Physiology, Iuliu Hațieganu University of Medicine and Pharmacy Cluj-Napoca, Clinicilor Street No. 1-3, 400006 Cluj-Napoca, Cluj County, Romania; (N.L.P.); (R.M.); (N.D.); (R.O.)
| | - Daniela Rodica Mitrea
- Department of Physiology, Iuliu Hațieganu University of Medicine and Pharmacy Cluj-Napoca, Clinicilor Street No. 1-3, 400006 Cluj-Napoca, Cluj County, Romania; (N.L.P.); (R.M.); (N.D.); (R.O.)
| | - Remus Orasan
- Department of Physiology, Iuliu Hațieganu University of Medicine and Pharmacy Cluj-Napoca, Clinicilor Street No. 1-3, 400006 Cluj-Napoca, Cluj County, Romania; (N.L.P.); (R.M.); (N.D.); (R.O.)
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44
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What Is New in Glaucoma: From Treatment to Biological Perspectives. J Ophthalmol 2021; 2021:5013529. [PMID: 33936807 PMCID: PMC8060111 DOI: 10.1155/2021/5013529] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 02/24/2021] [Accepted: 03/24/2021] [Indexed: 11/30/2022] Open
Abstract
Glaucoma is a chronic silent disease and an irreversible cause of blindness worldwide. Research has made many efforts to improve disease control and especially to anticipate both early diagnosis and treatment of advanced stages of glaucoma. In terms of prevention, networking between professionals and nonprofessionals is an important goal to disseminate information and help diagnose the disease early. On the other hand, the most recent approaches to treat glaucoma outcomes in its advanced stages include electrical stimulation, stem cells, exosomes, extracellular vesicles, and growth factors. Finally, neuronal plasticity-based rehabilitation methods are being studied to reeducate patients in order to stimulate their residual visual capacity. This review provides an overview of new approaches to future possible glaucoma treatment modalities and gives insight into the perspectives available nowadays in this field.
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Selim OA, Lakhani S, Midha S, Mosahebi A, Kalaskar DM. Three-Dimensional Engineered Peripheral Nerve: Toward a New Era of Patient-Specific Nerve Repair Solutions. TISSUE ENGINEERING PART B-REVIEWS 2021; 28:295-335. [PMID: 33593147 DOI: 10.1089/ten.teb.2020.0355] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Reconstruction of peripheral nerve injuries (PNIs) with substance loss remains challenging because of limited treatment solutions and unsatisfactory patient outcomes. Currently, nerve autografting is the first-line management choice for bridging critical-sized nerve defects. The procedure, however, is often complicated by donor site morbidity and paucity of nerve tissue, raising a quest for better alternatives. The application of other treatment surrogates, such as nerve guides, remains questionable, and it is inefficient in irreducible nerve gaps. More importantly, these strategies lack customization for personalized patient therapy, which is a significant drawback of these nerve repair options. This negatively impacts the fascicle-to-fascicle regeneration process, critical to restoring the physiological axonal pathway of the disrupted nerve. Recently, the use of additive manufacturing (AM) technologies has offered major advancements to the bioengineering solutions for PNI therapy. These techniques aim at reinstating the native nerve fascicle pathway using biomimetic approaches, thereby augmenting end-organ innervation. AM-based approaches, such as three-dimensional (3D) bioprinting, are capable of biofabricating 3D-engineered nerve graft scaffolds in a patient-specific manner with high precision. Moreover, realistic in vitro models of peripheral nerve tissues that represent the physiologically and functionally relevant environment of human organs could also be developed. However, the technology is still nascent and faces major translational hurdles. In this review, we spotlighted the clinical burden of PNIs and most up-to-date treatment to address nerve gaps. Next, a summarized illustration of the nerve ultrastructure that guides research solutions is discussed. This is followed by a contrast of the existing bioengineering strategies used to repair peripheral nerve discontinuities. In addition, we elaborated on the most recent advances in 3D printing and biofabrication applications in peripheral nerve modeling and engineering. Finally, the major challenges that limit the evolution of the field along with their possible solutions are also critically analyzed.
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Affiliation(s)
- Omar A Selim
- Department of Surgical Biotechnology, Division of Surgery and Interventional Sciences, Royal Free Hospital, University College London (UCL), London, United Kingdom
| | - Saad Lakhani
- Department of Surgical Biotechnology, Division of Surgery and Interventional Sciences, Royal Free Hospital, University College London (UCL), London, United Kingdom
| | - Swati Midha
- Department of Surgical Biotechnology, Division of Surgery and Interventional Sciences, Royal Free Hospital, University College London (UCL), London, United Kingdom.,Department of Surgical Biotechnology, Special Centre for Nanoscience, Jawaharlal Nehru University, New Delhi, India
| | - Afshin Mosahebi
- Department of Plastic Surgery, Royal Free Hospital, University College London (UCL), London, United Kingdom
| | - Deepak M Kalaskar
- Department of Surgical Biotechnology, Division of Surgery and Interventional Sciences, Royal Free Hospital, University College London (UCL), London, United Kingdom.,Department of Surgical Biotechnology, Institute of Orthopaedics and Musculoskeletal Science, Royal National Orthopaedic Hospital, University College London (UCL), Stanmore, United Kingdom
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46
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Singh A, Shiekh PA, Qayoom I, Srivastava E, Kumar A. Evaluation of polymeric aligned NGCs and exosomes in nerve injury models in diabetic peripheral neuropathy condition. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2020.110256] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Ferrari LM, Rodríguez-Meana B, Bonisoli A, Cutrone A, Micera S, Navarro X, Greco F, Del Valle J. All-Polymer Printed Low-Cost Regenerative Nerve Cuff Electrodes. Front Bioeng Biotechnol 2021; 9:615218. [PMID: 33644015 PMCID: PMC7902501 DOI: 10.3389/fbioe.2021.615218] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Accepted: 01/11/2021] [Indexed: 11/13/2022] Open
Abstract
Neural regeneration after lesions is still limited by several factors and new technologies are developed to address this issue. Here, we present and test in animal models a new regenerative nerve cuff electrode (RnCE). It is based on a novel low-cost fabrication strategy, called "Print and Shrink", which combines the inkjet printing of a conducting polymer with a heat-shrinkable polymer substrate for the development of a bioelectronic interface. This method allows to produce miniaturized regenerative cuff electrodes without the use of cleanroom facilities and vacuum based deposition methods, thus highly reducing the production costs. To fully proof the electrodes performance in vivo we assessed functional recovery and adequacy to support axonal regeneration after section of rat sciatic nerves and repair with RnCE. We investigated the possibility to stimulate the nerve to activate different muscles, both in acute and chronic scenarios. Three months after implantation, RnCEs were able to stimulate regenerated motor axons and induce a muscular response. The capability to produce fully-transparent nerve interfaces provided with polymeric microelectrodes through a cost-effective manufacturing process is an unexplored approach in neuroprosthesis field. Our findings pave the way to the development of new and more usable technologies for nerve regeneration and neuromodulation.
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Affiliation(s)
- Laura M Ferrari
- Center for Micro-BioRobotics @SSSA, Istituto Italiano di Tecnologia, Pontedera, Italy.,The BioRobotics Institute and Department of Excellence in Robotics and AI, Scuola Superiore Sant'Anna, Pontedera, Italy.,Université Côte d'Azur, INRIA, Sophia Antipolis, France
| | - Bruno Rodríguez-Meana
- Department of Cell Biology, Physiology and Immunology, Institute of Neurosciences, Universitat Autònoma de Barcelona, and CIBERNED, Bellaterra, Spain
| | - Alberto Bonisoli
- Center for Micro-BioRobotics @SSSA, Istituto Italiano di Tecnologia, Pontedera, Italy.,The BioRobotics Institute and Department of Excellence in Robotics and AI, Scuola Superiore Sant'Anna, Pontedera, Italy
| | - Annarita Cutrone
- The BioRobotics Institute and Department of Excellence in Robotics and AI, Scuola Superiore Sant'Anna, Pontedera, Italy
| | - Silvestro Micera
- The BioRobotics Institute and Department of Excellence in Robotics and AI, Scuola Superiore Sant'Anna, Pontedera, Italy.,Bertarelli Foundation Chair in Translational NeuroEngineering, Center for Neuroprosthetics and Institute of Bioengineering, Ecole Polytechnique Federale de Lausanne, Lausanne, Switzerland
| | - Xavier Navarro
- Department of Cell Biology, Physiology and Immunology, Institute of Neurosciences, Universitat Autònoma de Barcelona, and CIBERNED, Bellaterra, Spain
| | - Francesco Greco
- Center for Micro-BioRobotics @SSSA, Istituto Italiano di Tecnologia, Pontedera, Italy.,Institute of Solid State Physics, NAWI Graz, Graz University of Technology, Graz, Austria.,Department of Life Science and Medical Bioscience, Graduate School of Advanced Science and Engineering, Waseda University, Tokyo, Japan
| | - Jaume Del Valle
- Department of Cell Biology, Physiology and Immunology, Institute of Neurosciences, Universitat Autònoma de Barcelona, and CIBERNED, Bellaterra, Spain
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48
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D. Alvites R, V. Branquinho M, Sousa AC, Zen F, Maurina M, Raimondo S, Mendonça C, Atayde L, Geuna S, Varejão AS, Maurício AC. Establishment of a Sheep Model for Hind Limb Peripheral Nerve Injury: Common Peroneal Nerve. Int J Mol Sci 2021; 22:ijms22031401. [PMID: 33573310 PMCID: PMC7866789 DOI: 10.3390/ijms22031401] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 01/27/2021] [Accepted: 01/27/2021] [Indexed: 02/07/2023] Open
Abstract
Thousands of people worldwide suffer from peripheral nerve injuries and must deal daily with the resulting physiological and functional deficits. Recent advances in this field are still insufficient to guarantee adequate outcomes, and the development of new and compelling therapeutic options require the use of valid preclinical models that effectively replicate the characteristics and challenges associated with these injuries in humans. In this study, we established a sheep model for common peroneal nerve injuries that can be applied in preclinical research with the advantages associated with the use of large animal models. The anatomy of the common peroneal nerve and topographically related nerves, the functional consequences of its injury and a neurological examination directed at this nerve have been described. Furthermore, the surgical protocol for accessing the common peroneal nerve, the induction of different types of nerve damage and the application of possible therapeutic options were described. Finally, a preliminary morphological and stereological study was carried out to establish control values for the healthy common peroneal nerves regarding this animal model and to identify preliminary differences between therapeutic methods. This study allowed to define the described lateral incision as the best to access the common peroneal nerve, besides establishing 12 and 24 weeks as the minimum periods to study lesions of axonotmesis and neurotmesis, respectively, in this specie. The post-mortem evaluation of the harvested nerves allowed to register stereological values for healthy common peroneal nerves to be used as controls in future studies, and to establish preliminary values associated with the therapeutic performance of the different applied options, although limited by a small sample size, thus requiring further validation studies. Finally, this study demonstrated that the sheep is a valid model of peripheral nerve injury to be used in pre-clinical and translational works and to evaluate the efficacy and safety of nerve injury therapeutic options before its clinical application in humans and veterinary patients.
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Affiliation(s)
- Rui D. Alvites
- Departamento de Clínicas Veterinárias, Instituto de Ciências Biomédicas de Abel Salazar (ICBAS), Universidade do Porto (UP), Rua de Jorge Viterbo Ferreira, nº 228, 4050-313 Porto, Portugal; (R.D.A.); (M.V.B.); (A.C.S.); (C.M.); (L.A.)
- Centro de Estudos de Ciência Animal (CECA), Instituto de Ciências, Tecnologias e Agroambiente da Universidade do Porto (ICETA), Rua D. Manuel II, Apartado 55142, 4051-401 Porto, Portugal
| | - Mariana V. Branquinho
- Departamento de Clínicas Veterinárias, Instituto de Ciências Biomédicas de Abel Salazar (ICBAS), Universidade do Porto (UP), Rua de Jorge Viterbo Ferreira, nº 228, 4050-313 Porto, Portugal; (R.D.A.); (M.V.B.); (A.C.S.); (C.M.); (L.A.)
- Centro de Estudos de Ciência Animal (CECA), Instituto de Ciências, Tecnologias e Agroambiente da Universidade do Porto (ICETA), Rua D. Manuel II, Apartado 55142, 4051-401 Porto, Portugal
| | - Ana C. Sousa
- Departamento de Clínicas Veterinárias, Instituto de Ciências Biomédicas de Abel Salazar (ICBAS), Universidade do Porto (UP), Rua de Jorge Viterbo Ferreira, nº 228, 4050-313 Porto, Portugal; (R.D.A.); (M.V.B.); (A.C.S.); (C.M.); (L.A.)
- Centro de Estudos de Ciência Animal (CECA), Instituto de Ciências, Tecnologias e Agroambiente da Universidade do Porto (ICETA), Rua D. Manuel II, Apartado 55142, 4051-401 Porto, Portugal
| | - Federica Zen
- Department of Clinical and Biological Sciences, Cavalieri Ottolenghi Neuroscience Institute, University of Turin, Regione Gonzole 10, 10043 Orbassano, TO, Italy; (F.Z.); (M.M.); (S.R.); (S.G.)
| | - Monica Maurina
- Department of Clinical and Biological Sciences, Cavalieri Ottolenghi Neuroscience Institute, University of Turin, Regione Gonzole 10, 10043 Orbassano, TO, Italy; (F.Z.); (M.M.); (S.R.); (S.G.)
| | - Stefania Raimondo
- Department of Clinical and Biological Sciences, Cavalieri Ottolenghi Neuroscience Institute, University of Turin, Regione Gonzole 10, 10043 Orbassano, TO, Italy; (F.Z.); (M.M.); (S.R.); (S.G.)
| | - Carla Mendonça
- Departamento de Clínicas Veterinárias, Instituto de Ciências Biomédicas de Abel Salazar (ICBAS), Universidade do Porto (UP), Rua de Jorge Viterbo Ferreira, nº 228, 4050-313 Porto, Portugal; (R.D.A.); (M.V.B.); (A.C.S.); (C.M.); (L.A.)
- Centro de Estudos de Ciência Animal (CECA), Instituto de Ciências, Tecnologias e Agroambiente da Universidade do Porto (ICETA), Rua D. Manuel II, Apartado 55142, 4051-401 Porto, Portugal
| | - Luís Atayde
- Departamento de Clínicas Veterinárias, Instituto de Ciências Biomédicas de Abel Salazar (ICBAS), Universidade do Porto (UP), Rua de Jorge Viterbo Ferreira, nº 228, 4050-313 Porto, Portugal; (R.D.A.); (M.V.B.); (A.C.S.); (C.M.); (L.A.)
- Centro de Estudos de Ciência Animal (CECA), Instituto de Ciências, Tecnologias e Agroambiente da Universidade do Porto (ICETA), Rua D. Manuel II, Apartado 55142, 4051-401 Porto, Portugal
| | - Stefano Geuna
- Department of Clinical and Biological Sciences, Cavalieri Ottolenghi Neuroscience Institute, University of Turin, Regione Gonzole 10, 10043 Orbassano, TO, Italy; (F.Z.); (M.M.); (S.R.); (S.G.)
| | - Artur S.P. Varejão
- CECAV, Centro de Ciência Animal e Veterinária, Universidade de Trás-os-Montes e Alto Douro (UTAD), Quinta de Prados, 5001-801 Vila Real, Portugal;
- Departamento de Ciências Veterinárias, Universidade de Trás-os-Montes e Alto Douro (UTAD), Quinta de Prados, 5001-801 Vila Real, Portugal
| | - Ana C. Maurício
- Departamento de Clínicas Veterinárias, Instituto de Ciências Biomédicas de Abel Salazar (ICBAS), Universidade do Porto (UP), Rua de Jorge Viterbo Ferreira, nº 228, 4050-313 Porto, Portugal; (R.D.A.); (M.V.B.); (A.C.S.); (C.M.); (L.A.)
- Centro de Estudos de Ciência Animal (CECA), Instituto de Ciências, Tecnologias e Agroambiente da Universidade do Porto (ICETA), Rua D. Manuel II, Apartado 55142, 4051-401 Porto, Portugal
- Correspondence: or
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49
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Liu H, Zhao Y, Tong J, Shi X, Chen Y, Du Y. Electrofabrication of flexible and mechanically strong tubular chitosan implants for peripheral nerve regeneration. J Mater Chem B 2021; 9:5537-5546. [PMID: 34161401 DOI: 10.1039/d1tb00247c] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The development of peripheral nerve tissue engineering requires a safe and reliable methodology to construct biodegradable conduits. Herein, a new type of chitosan-based nerve-guide hydrogel conduit (CNHC) with enhanced mechanical flexibility in the wet state was fabricated using a one-step electrofabrication technology. The formation of the chitosan conduit is a physical process which can be conducted in a mild water phase without toxic crosslinks. The current density during electrofabrication has a profound effect on the physical and structural properties of the conduits. Cytocompatibility results indicate that the CNHC can promote cell proliferation and adhesion. Functional and histological tests indicate that the CNHC has the ability to guide the growth of axons through the conduit to reach a distal stump, which is closely similar to the autograft group. Overall, the results of this study demonstrate that the CNHCs from electrofabrication have a great potential in peripheral nerve regeneration.
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Affiliation(s)
- Hongyu Liu
- School of Resource and Environmental Science, Hubei Engineering Center of Natural Polymers-Based Medical Materials, Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, Wuhan University, Wuhan 430079, China.
| | - Yanan Zhao
- Department of Biomedical Engineering, School of Basic Medical Sciences, Hubei Province Key Laboratory of Allergy and Immune Related Diseases, Hubei Engineering Center of Natural Polymers-Based Medical Materials, Wuhan University, Wuhan 430071, China.
| | - Jun Tong
- School of Resource and Environmental Science, Hubei Engineering Center of Natural Polymers-Based Medical Materials, Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, Wuhan University, Wuhan 430079, China.
| | - Xiaowen Shi
- School of Resource and Environmental Science, Hubei Engineering Center of Natural Polymers-Based Medical Materials, Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, Wuhan University, Wuhan 430079, China.
| | - Yun Chen
- Department of Biomedical Engineering, School of Basic Medical Sciences, Hubei Province Key Laboratory of Allergy and Immune Related Diseases, Hubei Engineering Center of Natural Polymers-Based Medical Materials, Wuhan University, Wuhan 430071, China.
| | - Yumin Du
- School of Resource and Environmental Science, Hubei Engineering Center of Natural Polymers-Based Medical Materials, Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, Wuhan University, Wuhan 430079, China.
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50
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Fundamentals and Current Strategies for Peripheral Nerve Repair and Regeneration. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1249:173-201. [PMID: 32602098 DOI: 10.1007/978-981-15-3258-0_12] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A body of evidence indicates that peripheral nerves have an extraordinary yet limited capacity to regenerate after an injury. Peripheral nerve injuries have confounded professionals in this field, from neuroscientists to neurologists, plastic surgeons, and the scientific community. Despite all the efforts, full functional recovery is still seldom. The inadequate results attained with the "gold standard" autograft procedure still encourage a dynamic and energetic research around the world for establishing good performing tissue-engineered alternative grafts. Resourcing to nerve guidance conduits, a variety of methods have been experimentally used to bridge peripheral nerve gaps of limited size, up to 30-40 mm in length, in humans. Herein, we aim to summarize the fundamentals related to peripheral nerve anatomy and overview the challenges and scientific evidences related to peripheral nerve injury and repair mechanisms. The most relevant reports dealing with the use of both synthetic and natural-based biomaterials used in tissue engineering strategies when treatment of nerve injuries is envisioned are also discussed in depth, along with the state-of-the-art approaches in this field.
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