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Zennifer A, Chellappan DR, Chinnaswamy P, Subramanian A, Sundaramurthi D, Sethuraman S. Efficacy of 3D printed anatomically equivalent thermoplastic polyurethane guide conduits in promoting the regeneration of critical-sized peripheral nerve defects. Biofabrication 2024; 16:045015. [PMID: 38968935 DOI: 10.1088/1758-5090/ad5fbe] [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: 12/20/2023] [Accepted: 07/05/2024] [Indexed: 07/07/2024]
Abstract
Three-dimensional (3D) printing is an emerging tool for creating patient-specific tissue constructs analogous to the native tissue microarchitecture. In this study, anatomically equivalent 3D nerve conduits were developed using thermoplastic polyurethane (TPU) by combining reverse engineering and material extrusion (i.e. fused deposition modeling) technique. Printing parameters were optimized to fabricate nerve-equivalent TPU constructs. The TPU constructs printed with different infill densities supported the adhesion, proliferation, and gene expression of neuronal cells. Subcutaneous implantation of the TPU constructs for three months in rats showed neovascularization with negligible local tissue inflammatory reactions and was classified as a non-irritant biomaterial as per ISO 10993-6. To performin vivoefficacy studies, nerve conduits equivalent to rat's sciatic nerve were fabricated and bridged in a 10 mm sciatic nerve transection model. After four months of implantation, the sensorimotor function and histological assessments revealed that the 3D printed TPU conduits promoted the regeneration in critical-sized peripheral nerve defects equivalent to autografts. This study proved that TPU-based 3D printed nerve guidance conduits can be created to replicate the complicated features of natural nerves that can promote the regeneration of peripheral nerve defects and also show the potential to be extended to several other tissues for regenerative medicine applications.
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Affiliation(s)
- Allen Zennifer
- Tissue Engineering & Additive Manufacturing (TEAM) Lab, Centre for Nanotechnology & Advanced Biomaterials, ABCDE Innovation Centre, School of Chemical & Biotechnology, SASTRA Deemed University, Thanjavur, Tamil Nadu 613 401, India
| | - David Raj Chellappan
- Central Animal Facility, School of Chemical & Biotechnology, SASTRA Deemed University, Thanjavur, Tamil Nadu 613 401, India
| | - Prabu Chinnaswamy
- Department of Veterinary Pathology, Veterinary College and Research Institute, Orathanadu, Tamil Nadu 614 625, India
| | - Anuradha Subramanian
- Tissue Engineering & Additive Manufacturing (TEAM) Lab, Centre for Nanotechnology & Advanced Biomaterials, ABCDE Innovation Centre, School of Chemical & Biotechnology, SASTRA Deemed University, Thanjavur, Tamil Nadu 613 401, India
| | - Dhakshinamoorthy Sundaramurthi
- Tissue Engineering & Additive Manufacturing (TEAM) Lab, Centre for Nanotechnology & Advanced Biomaterials, ABCDE Innovation Centre, School of Chemical & Biotechnology, SASTRA Deemed University, Thanjavur, Tamil Nadu 613 401, India
| | - Swaminathan Sethuraman
- Tissue Engineering & Additive Manufacturing (TEAM) Lab, Centre for Nanotechnology & Advanced Biomaterials, ABCDE Innovation Centre, School of Chemical & Biotechnology, SASTRA Deemed University, Thanjavur, Tamil Nadu 613 401, India
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Wang J, Liu H, Shi X, Qin S, Liu J, Lv Q, Liu J, Li Q, Wang Z, Wang L. Development and Application of an Advanced Biomedical Material-Silk Sericin. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2311593. [PMID: 38386199 DOI: 10.1002/adma.202311593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 01/18/2024] [Indexed: 02/23/2024]
Abstract
Sericin, a protein derived from silkworm cocoons, is considered a waste product derived from the silk industry for thousands of years due to a lack of understanding of its properties. However, in recent decades, a range of exciting properties of sericin are studied and uncovered, including cytocompatibility, low-immunogenicity, photo-luminescence, antioxidant properties, as well as cell-function regulating activities. These properties make sericin-based biomaterials promising candidates for biomedical applications. This review summarizes the properties and bioactivities of silk sericin and highlights the latest developments in sericin in tissue engineering and regenerative medicine. Furthermore, the extended application of sericin in developing flexible electronic devices and 3D bioprinting is also discussed. It is believed that sericin-based biomaterials have great potential of being developed into novel tissue engineering products and smart implantable devices for various medical applications toward improving clinical outcomes.
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Affiliation(s)
- Jian Wang
- Department of Clinical Laboratory, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Key Laboratory of Regenerative Medicine and Multi-disciplinary Translational Research, Hubei Provincial Engineering Research Center of Clinical Laboratory and Active Health Smart Equipment, Research Center for Tissue Engineering and Regenerative Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Huan Liu
- Department of Clinical Laboratory, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Key Laboratory of Regenerative Medicine and Multi-disciplinary Translational Research, Hubei Provincial Engineering Research Center of Clinical Laboratory and Active Health Smart Equipment, Research Center for Tissue Engineering and Regenerative Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Xiaolei Shi
- Hubei Key Laboratory of Regenerative Medicine and Multi-disciplinary Translational Research, Hubei Provincial Engineering Research Center of Clinical Laboratory and Active Health Smart Equipment, Research Center for Tissue Engineering and Regenerative Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Sumei Qin
- Hubei Key Laboratory of Regenerative Medicine and Multi-disciplinary Translational Research, Hubei Provincial Engineering Research Center of Clinical Laboratory and Active Health Smart Equipment, Research Center for Tissue Engineering and Regenerative Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Jingwei Liu
- Hubei Key Laboratory of Regenerative Medicine and Multi-disciplinary Translational Research, Hubei Provincial Engineering Research Center of Clinical Laboratory and Active Health Smart Equipment, Research Center for Tissue Engineering and Regenerative Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Qiying Lv
- Hubei Key Laboratory of Regenerative Medicine and Multi-disciplinary Translational Research, Hubei Provincial Engineering Research Center of Clinical Laboratory and Active Health Smart Equipment, Research Center for Tissue Engineering and Regenerative Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Jia Liu
- Hubei Key Laboratory of Regenerative Medicine and Multi-disciplinary Translational Research, Hubei Provincial Engineering Research Center of Clinical Laboratory and Active Health Smart Equipment, Research Center for Tissue Engineering and Regenerative Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Qilin's Li
- Department of Clinical Laboratory, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Key Laboratory of Regenerative Medicine and Multi-disciplinary Translational Research, Hubei Provincial Engineering Research Center of Clinical Laboratory and Active Health Smart Equipment, Research Center for Tissue Engineering and Regenerative Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Zheng Wang
- Hubei Key Laboratory of Regenerative Medicine and Multi-disciplinary Translational Research, Hubei Provincial Engineering Research Center of Clinical Laboratory and Active Health Smart Equipment, Research Center for Tissue Engineering and Regenerative Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Lin Wang
- Department of Clinical Laboratory, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Key Laboratory of Regenerative Medicine and Multi-disciplinary Translational Research, Hubei Provincial Engineering Research Center of Clinical Laboratory and Active Health Smart Equipment, Research Center for Tissue Engineering and Regenerative Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
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Zabbia G, Toia F, Coppola F, Cassata G, Cicero L, Giglia G, Puleio R, Cordova A. Nerve Regeneration after a Nerve Graft in a Rat Model: The Effectiveness of Fibrin Glue. J Pers Med 2024; 14:445. [PMID: 38793027 PMCID: PMC11121836 DOI: 10.3390/jpm14050445] [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: 03/07/2024] [Revised: 04/11/2024] [Accepted: 04/22/2024] [Indexed: 05/26/2024] Open
Abstract
BACKGROUND Simulating the post-traumatic continuity defect of small human peripheral nerves, we compared the effectiveness of fibrin glue with neurorrhaphy for nerve gap restoration. METHODS In twenty-four male Wistar rats, a fifteen mm defect in one sciatic nerve only was made and immediately repaired with an inverted polarity autograft. According to the used technique, rats were divided into Group A (Control), using traditional neurorrhaphy, and Group B (Study), using fibrine glue sealing; in total, 50% of rats were sacrificed at 16 weeks and 50% at 21 weeks. Before sacrifice, an assessment of motor function was done through Walking Track Analysis and an electroneurophysiological evaluation. After sacrifice, selected muscle mass indexes and the histology of the regenerated nerves were assessed. All data were evaluated by Student's t test for unpaired data. RESULTS No significant differences were found between the two groups, with only the exception of a relative improvement in the tibialis anterior muscle's number of motor units in the study group. CONCLUSION Despite the fact that the use of fibrin glue as a nerve sealant is not superior in terms of functional recovery, its effectiveness is comparable to that of microsurgical repair. Hence, the faster and technically easier glueing technique could deserve broader clinical application.
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Affiliation(s)
- Giovanni Zabbia
- Plastic and Reconstructive Surgery, Department of Precision Medicine in Medical, Surgical and Critical Care, University of Palermo, Via del Vespro 129, 90127 Palermo, Italy; (G.Z.); (F.T.); (A.C.)
| | - Francesca Toia
- Plastic and Reconstructive Surgery, Department of Precision Medicine in Medical, Surgical and Critical Care, University of Palermo, Via del Vespro 129, 90127 Palermo, Italy; (G.Z.); (F.T.); (A.C.)
| | - Federico Coppola
- Plastic and Reconstructive Surgery, Department of Precision Medicine in Medical, Surgical and Critical Care, University of Palermo, Via del Vespro 129, 90127 Palermo, Italy; (G.Z.); (F.T.); (A.C.)
| | - Giovanni Cassata
- Centro Mediterraneo Ricerca e Training (Ce.Me.Ri.T), Istituto Zooprofilattico Sperimentale della Sicilia “A. Mirri”, 90129 Palermo, Italy; (G.C.); (L.C.)
| | - Luca Cicero
- Centro Mediterraneo Ricerca e Training (Ce.Me.Ri.T), Istituto Zooprofilattico Sperimentale della Sicilia “A. Mirri”, 90129 Palermo, Italy; (G.C.); (L.C.)
| | - Giuseppe Giglia
- Department of Biomedicine, Neuroscience and Advanced Diagnostics (BiND), Section of Human Physiology, University of Palermo, 90127 Palermo, Italy;
| | - Roberto Puleio
- Laboratorio Istopatologia e Immunoistochimica, Dipartimento Ricerca Biotecnologica e Diagnostica Specialistica, Istituto Zooprofilattico Sperimentale della Sicilia “A. Mirri”, 90129 Palermo, Italy;
| | - Adriana Cordova
- Plastic and Reconstructive Surgery, Department of Precision Medicine in Medical, Surgical and Critical Care, University of Palermo, Via del Vespro 129, 90127 Palermo, Italy; (G.Z.); (F.T.); (A.C.)
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Zhang Z, Lv Y, Harati J, Song J, Du P, Ou P, Liang J, Wang H, Wang PY. Submicron-Grooved Films Modulate the Directional Alignment and Biological Function of Schwann Cells. J Funct Biomater 2023; 14:jfb14050238. [PMID: 37233348 DOI: 10.3390/jfb14050238] [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: 03/08/2023] [Revised: 04/12/2023] [Accepted: 04/21/2023] [Indexed: 05/27/2023] Open
Abstract
Topographical cues on material surfaces are crucial for guiding the behavior of nerve cells and facilitating the repair of peripheral nerve defects. Previously, micron-grooved surfaces have shown great potential in controlling nerve cell alignment for studying the behavior and functions of those cells and peripheral nerve regeneration. However, the effects of smaller-sized topographical cues, such as those in the submicron- and nano-scales, on Schwann cell behavior remain poorly understood. In this study, four different submicron-grooved polystyrene films (800/400, 800/100, 400/400, and 400/100) were fabricated to study the behavior, gene expression, and membrane potential of Schwann cells. The results showed that all submicron-grooved films could guide the cell alignment and cytoskeleton in a groove depth-dependent manner. Cell proliferation and cell cycle assays revealed that there was no significant difference between the submicron groove samples and the flat control. However, the submicron grooves can direct the migration of cells and upregulate the expression of critical genes in axon regeneration and myelination (e.g., MBP and Smad6). Finally, the membrane potential of the Schwann cells was significantly altered on the grooved sample. In conclusion, this study sheds light on the role of submicron-grooved patterns in regulating the behavior and function of Schwann cells, which provides unique insights for the development of implants for peripheral nerve regeneration.
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Affiliation(s)
- Zhen Zhang
- Center for Human Tissues and Organs Degeneration, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yuanliang Lv
- Center for Human Tissues and Organs Degeneration, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Javad Harati
- Center for Human Tissues and Organs Degeneration, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jianan Song
- Oujiang Laboratory, Key Laboratory of Alzheimer's Disease of Zhejiang Province, Institute of Aging, Wenzhou Medical University, Wenzhou 325000, China
| | - Ping Du
- Center for Human Tissues and Organs Degeneration, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Peiyan Ou
- Center for Human Tissues and Organs Degeneration, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jiaqi Liang
- Center for Human Tissues and Organs Degeneration, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Huaiyu Wang
- Center for Human Tissues and Organs Degeneration, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Peng-Yuan Wang
- Oujiang Laboratory, Key Laboratory of Alzheimer's Disease of Zhejiang Province, Institute of Aging, Wenzhou Medical University, Wenzhou 325000, China
- Shenzhen Key Laboratory of Biomimetic Materials and Cellular Immunomodulation, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
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Smaniotto PH, Camargo CP, Kubrusly MS, Gemperli R. Comparison of three different strategies to treat sciatic nerve regeneration: an experimental study. Acta Cir Bras 2022; 37:e370501. [PMID: 35976339 PMCID: PMC9377207 DOI: 10.1590/acb370501] [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: 01/08/2022] [Accepted: 04/11/2022] [Indexed: 11/21/2022] Open
Abstract
PURPOSE To compare the effect of vein conduit filled with adipose tissue stem cells (ASC) on peripheral nerve injury regeneration. METHODS We analyzed 30 male Wistar rats surgically submitted to a 5-mm gap on the sciatic nerve. Then, the animals were divided into three groups: nerve autografting (AG, n=10), autogenous inverted glycerol-conserved vein (VG, n=10), and autogenous inverted glycerol-conserved vein + ASC (VASCG, n=10). The study endpoints were neuromotor functional analysis, gastrocnemius muscle weight, and sciatic nerve graft histomorphometry analysis. In the histologic analysis, we added a control group (naïve nerve). RESULTS Regarding functional analysis (Walking tract- score), the findings at week 3 showed a difference between the AG and the VG (-96.6 vs. -59.6, p=0.01, respectively) and between the VG and the inverted vein + VASCG (-59.9 vs. -88.92, p=0.02). At week 12, this study showed a difference between the AG and the VG (-64.8 vs. -47.3, p=0.004, respectively), and also a difference between the VG and the VASCG (-47.3 vs. -57.4, p=0.02, respectively). There was no difference in the histomorphometry analysis (nerve diameter, Schwann cells counting). The gastrocnemius muscles on the intervention side were more atrophic when compared to the gastrocnemius muscles on the control side. CONCLUSIONS Our results suggested better functional recovery in the inverted vein group when compared to control group, and inverted vein + ASC group.
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Affiliation(s)
| | - Cristina Pires Camargo
- PhD. Universidade de São Paulo - Medical School -Microsurgery and Plastic Surgery Laboratory - São Paulo (SP), Brazil
| | - Marcia Saldanha Kubrusly
- PhD. Universidade de São Paulo - Medical School -Transplantation and Liver Surgery - São Paulo (SP), Brazil
| | - Rolf Gemperli
- Full Professor. Universidade de São Paulo - Medical School - Plastic Surgeon Division - São Paulo (SP), Brazil
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Human Adipose-Derived Stem Cells Delay Muscular Atrophy after Peripheral Nerve Injury in Rats. Cell Biochem Biophys 2022; 80:555-562. [PMID: 35802247 DOI: 10.1007/s12013-022-01082-4] [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: 04/06/2022] [Accepted: 06/21/2022] [Indexed: 11/03/2022]
Abstract
INTRODUCTION Given that denervation atrophy often occurs in muscle after peripheral nerve injury, the effects of injections of human adipose-derived stem cells (hADSCs) and platelet-rich plasma (PRP) into muscle after peripheral nerve injury were examined. METHODS hADSCs were isolated from human subcutaneous fat tissue, and PRP was prepared from rat whole blood before injection into a rat sciatic nerve injury model. Muscle atrophy was evaluated by quantitating the gross musculature and muscle fiber area and walking footprint analysis. RESULTS At 4 weeks post-surgery, there were significant differences in the sciatic functional index between experimental (injected with hADSCs, PRP, or combined hADSCs + PRP) and non-operated groups (p < 0.0001), but no significant differences were observed between the different treatment groups (p > 0.05). Post hoc Bonferroni tests also showed significant differences in the wet muscle weight ratios of hADSC, PRP, and combined groups compared to PBS group. The gastrocnemius muscle fiber area was larger in hADSC group and the combined group compared to PBS group at 4 weeks post-surgery. CONCLUSION The injection of hADSCs delays muscular atrophy after sciatic nerve injury in rats; thus, hADSCs are a promising alternative for regenerating atrophied muscle.
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Liu Z, Liu Y, Yushan M, Yusufu A. Enhanced Nerve Regeneration by Bionic Conductive Nerve Scaffold Under Electrical Stimulation. Front Neurosci 2022; 16:810676. [PMID: 35573307 PMCID: PMC9091912 DOI: 10.3389/fnins.2022.810676] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Accepted: 02/14/2022] [Indexed: 11/15/2022] Open
Abstract
Repair of peripheral nerve defect (PND) with a poor prognosis is hard to deal with. Neural conduit applied to nerve defect at present could not achieve the effect of autologous nerve transplantation. We prepared bionic conductive neural scaffolds to provide a new strategy for the treatment of PNDs. The highly aligned poly (L-lactic acid) (PLLA) fiber mats and the multi-microchannel conductive scaffolds were combined into bionic conductive nerve scaffolds, which were implanted into rats with sciatic nerve defects. The experimental animals were divided into the scaffold group (S), scaffold with electrical stimulation (ES) group (S&E), and autologous nerve transplantation group (AT). The regenerative effect of bionic conductive nerve scaffolds was analyzed. Compared with aligned PLLA fiber mats (APFMs), highly aligned fiber mats had a higher fiber orientation and did not change the tensile strength, Young’s modulus, degradation rate, elongation at break of the fiber membrane, and biocompatibility. The bionic conductive nerve scaffolds were well matched with the rat sciatic nerve. The evaluations of the sciatic nerve in Group S&E were close to those in Group AT and better than those in Group S. Immunohistochemical results showed that the expression levels of neurofilament heavy polypeptide (NF-H) and protein S100-B (S100-β) in Group S&E were higher than those in Group S, and the expression levels of low-density lipoprotein receptor-related protein 4 (LRP4), mitogen-activated protein kinase (MAPK) p38, extracellular signal-regulated kinase (ERK), and mitogen-activated protein kinase kinase (MEK) in Group AT were higher than those in Group S. Bionic conductive nerve scaffolds combined with ES could enhance peripheral nerve regeneration and achieve satisfactory nerve regeneration close to autologous nerve grafts. ERK, p38 MAPK, MEK, and LRP4 may be involved in peripheral nerve regeneration under ES.
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Affiliation(s)
- Zhenhui Liu
- Department of Orthopedics, Henan Provincial People’s Hospital, Zhengzhou, China
- People’s Hospital of Zhengzhou University, Zhengzhou, China
- People’s Hospital of Henan University, Zhengzhou, China
- Department of Trauma and Micro Reconstructive Surgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Yanshi Liu
- Department of Trauma and Micro Reconstructive Surgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Maimaiaili Yushan
- Department of Trauma and Micro Reconstructive Surgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Aihemaitijiang Yusufu
- Department of Trauma and Micro Reconstructive Surgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
- *Correspondence: Aihemaitijiang Yusufu,
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Yan Z, Qian Y, Fan C. Biomimicry in 3D printing design: implications for peripheral nerve regeneration. Regen Med 2021; 16:683-701. [PMID: 34189955 DOI: 10.2217/rme-2020-0182] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Nerve guide conduits (NGCs) connect dissected nerve stumps and effectively repair short-range peripheral nerve defects. However, for long-range defects, autografts show better therapeutic effects, despite intrinsic limitations. Recent evidence shows that biomimetic design is essential for high-performance NGCs, and 3D printing is a promising fabricating technique. The current work includes a brief review of the challenges for peripheral nerve regeneration. The authors propose a potential solution using biomimetic 3D-printed NGCs as alternative therapies. The assessment of biomimetic designs includes microarchitecture, mechanical property, electrical conductivity and biologics inclusion. The applications of 3D printing in preparing NGCs and present strategies to improve therapeutic effects are also discussed.
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Affiliation(s)
- Zhiwen Yan
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China.,Shanghai Engineering Research Center for Orthopaedic Material Innovation and Tissue Regeneration, Shanghai, 200233, China.,Youth Science and Technology Innovation Studio, Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China
| | - Yun Qian
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China.,Shanghai Engineering Research Center for Orthopaedic Material Innovation and Tissue Regeneration, Shanghai, 200233, China.,Youth Science and Technology Innovation Studio, Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China
| | - Cunyi Fan
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China.,Shanghai Engineering Research Center for Orthopaedic Material Innovation and Tissue Regeneration, Shanghai, 200233, China.,Youth Science and Technology Innovation Studio, Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China
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Rodríguez-Sánchez DN, Pinto GBA, Cartarozzi LP, de Oliveira ALR, Bovolato ALC, de Carvalho M, da Silva JVL, Dernowsek JDA, Golim M, Barraviera B, Ferreira RS, Deffune E, Bertanha M, Amorim RM. 3D-printed nerve guidance conduits multi-functionalized with canine multipotent mesenchymal stromal cells promote neuroregeneration after sciatic nerve injury in rats. Stem Cell Res Ther 2021; 12:303. [PMID: 34051869 PMCID: PMC8164252 DOI: 10.1186/s13287-021-02315-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 03/29/2021] [Indexed: 01/09/2023] Open
Abstract
Background Nerve injuries are debilitating, leading to long-term motor deficits. Remyelination and axonal growth are supported and enhanced by growth factor and cytokines. Combination of nerve guidance conduits (NGCs) with adipose-tissue-derived multipotent mesenchymal stromal cells (AdMSCs) has been performing promising strategy for nerve regeneration. Methods 3D-printed polycaprolactone (PCL)-NGCs were fabricated. Wistar rats subjected to critical sciatic nerve damage (12-mm gap) were divided into sham, autograft, PCL (empty NGC), and PCL + MSCs (NGC multi-functionalized with 106 canine AdMSCs embedded in heterologous fibrin biopolymer) groups. In vitro, the cells were characterized and directly stimulated with interferon-gamma to evaluate their neuroregeneration potential. In vivo, the sciatic and tibial functional indices were evaluated for 12 weeks. Gait analysis and nerve conduction velocity were analyzed after 8 and 12 weeks. Morphometric analysis was performed after 8 and 12 weeks following lesion development. Real-time PCR was performed to evaluate the neurotrophic factors BDNF, GDNF, and HGF, and the cytokine and IL-10. Immunohistochemical analysis for the p75NTR neurotrophic receptor, S100, and neurofilament was performed with the sciatic nerve. Results The inflammatory environment in vitro have increased the expression of neurotrophins BDNF, GDNF, HGF, and IL-10 in canine AdMSCs. Nerve guidance conduits multi-functionalized with canine AdMSCs embedded in HFB improved functional motor and electrophysiological recovery compared with PCL group after 12 weeks. However, the results were not significantly different than those obtained using autografts. These findings were associated with a shift in the regeneration process towards the formation of myelinated fibers. Increased immunostaining of BDNF, GDNF, and growth factor receptor p75NTR was associated with the upregulation of BDNF, GDNF, and HGF in the spinal cord of the PCL + MSCs group. A trend demonstrating higher reactivity of Schwann cells and axonal branching in the sciatic nerve was observed, and canine AdMSCs were engrafted at 30 days following repair. Conclusions 3D-printed NGCs multi-functionalized with canine AdMSCs embedded in heterologous fibrin biopolymer as cell scaffold exerted neuroregenerative effects. Our multimodal approach supports the trophic microenvironment, resulting in a pro-regenerative state after critical sciatic nerve injury in rats.
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Affiliation(s)
- Diego Noé Rodríguez-Sánchez
- Department of Veterinary Clinics, School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, SP, Brazil
| | - Giovana Boff Araujo Pinto
- Department of Veterinary Clinics, School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, SP, Brazil
| | - Luciana Politti Cartarozzi
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas, Campinas, SP, Brazil
| | | | - Ana Livia Carvalho Bovolato
- Blood Transfusion Center, Cell Engineering Laboratory, Botucatu Medical School, São Paulo State University, Botucatu, SP, Brazil
| | - Marcio de Carvalho
- Department of Veterinary Clinics, School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, SP, Brazil
| | - Jorge Vicente Lopes da Silva
- Renato Archer Information Technology Center (CTI), Three-dimensional Technologies Research Group, Campinas, SP, Brazil
| | - Janaina de Andréa Dernowsek
- Renato Archer Information Technology Center (CTI), Three-dimensional Technologies Research Group, Campinas, SP, Brazil
| | - Marjorie Golim
- Hemocenter division of Botucatu Medical School, São Paulo State University, Botucatu, SP, Brazil
| | - Benedito Barraviera
- Center for the Study of Venoms and Venomous Animals (CEVAP), São Paulo State University (UNESP), Botucatu, SP, Brazil
| | - Rui Seabra Ferreira
- Center for the Study of Venoms and Venomous Animals (CEVAP), São Paulo State University (UNESP), Botucatu, SP, Brazil
| | - Elenice Deffune
- Blood Transfusion Center, Cell Engineering Laboratory, Botucatu Medical School, São Paulo State University, Botucatu, SP, Brazil
| | - Mathues Bertanha
- Blood Transfusion Center, Cell Engineering Laboratory, Botucatu Medical School, São Paulo State University, Botucatu, SP, Brazil
| | - Rogério Martins Amorim
- Department of Veterinary Clinics, School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, SP, Brazil.
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10
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Shrestha S, Shrestha BK, Joong OK, Park CH, Kim CS. Para-substituted sulfonic acid-doped protonated emeraldine salt nanobuds: a potent neural interface targeting PC12 cell interactions and promotes neuronal cell differentiation. Biomater Sci 2021; 9:1691-1704. [PMID: 33410823 DOI: 10.1039/d0bm01034k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Structural parameters, such as metal-like semiconductor and electrochemical properties of functionalized polyaniline, hold great potential especially for the development of the cell-substrate interface due to its ion/electron transfer ability. We report the one-step synthesis of sulfonic acid-doped polyaniline nanobuds (s-PANINbs) with controlled shape/size under various oxidation potentials. The different oxidation states of s-PANINbs are used to investigate the cell-specific platform for the induction of neuronal networks in PC12 cells, including the growth, proliferation, and differentiation of cells. The unique structure of one-dimensional (1-D) s-PANINbs enhances its intrinsic conductive properties, and facilitates the dispersibility and electrochemical activity via covalent bonding with dopants. The protonated emeraldine salt nanobuds of s-PANINbs synthesized at 0.18 V anodic potential demonstrated low resistivity (∼81.18 mΩ) and charge transfer resistance (∼3253 Ω). The most biologically compatible protonated emeraldine salt was used in vitro to induce PC12 cells associated with neurite outgrowth, contributing to the electrophysiology of neuronal cells under an external electrical stimulation. The western blotting analysis and qRT-PCR results show that β-III Tubulin, synapsin I, and TREK-1 are highly expressed in PC12 cells, confirming their successful differentiation into neural-specific cells. Our approach demonstrates the promising role of the self-standing framework based on the s-PANINbs of the protonated emeraldine salt in peripheral nerve repair for the future in vivo cell-interface.
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Affiliation(s)
- Sita Shrestha
- Department of Bionanotechnology and Bioconvergence Engineering, Graduate School, Jeonbuk National University, Jeonju, Republic of Korea. and Department of Bionanosystem Engineering, Graduate School, Jeonbuk National University, Jeonju 561-756, Republic of Korea
| | - Bishnu Kumar Shrestha
- Department of Bionanotechnology and Bioconvergence Engineering, Graduate School, Jeonbuk National University, Jeonju, Republic of Korea. and Department of Bionanosystem Engineering, Graduate School, Jeonbuk National University, Jeonju 561-756, Republic of Korea and Mechanical Design Engineering, Jeonbuk National University, Jeonju 561-756, Republic of Korea
| | - Oh Kwang Joong
- Department of chemistry, Jeonbuk National University, Jeonju 561-756, Republic of Korea
| | - Chan Hee Park
- Department of Bionanotechnology and Bioconvergence Engineering, Graduate School, Jeonbuk National University, Jeonju, Republic of Korea. and Department of Bionanosystem Engineering, Graduate School, Jeonbuk National University, Jeonju 561-756, Republic of Korea and Mechanical Design Engineering, Jeonbuk National University, Jeonju 561-756, Republic of Korea
| | - Cheol Sang Kim
- Department of Bionanotechnology and Bioconvergence Engineering, Graduate School, Jeonbuk National University, Jeonju, Republic of Korea. and Department of Bionanosystem Engineering, Graduate School, Jeonbuk National University, Jeonju 561-756, Republic of Korea and Mechanical Design Engineering, Jeonbuk National University, Jeonju 561-756, Republic of Korea
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11
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Chen X, Ye K, Yu J, Gao J, Zhang L, Ji X, Chen T, Wang H, Dai Y, Tang B, Xu H, Sun X, Hu J. Regeneration of sciatic nerves by transplanted microvesicles of human neural stem cells derived from embryonic stem cells. Cell Tissue Bank 2020; 21:233-248. [PMID: 32052220 DOI: 10.1007/s10561-020-09816-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Accepted: 02/04/2020] [Indexed: 12/11/2022]
Abstract
Injured nerves cannot regenerate on their own, and a lack of engraftable human nerves has been a major obstacle in cell-based therapies for regenerating damaged nerves. A monolayer culture approach to obtain adherent neural stem cells from human embryonic stem cells (hESC-NSCs) was established, and the greatest number of stemness characteristics were achieved by the eighth generation of hESC-NSCs (P8 hESC-NSCs). To overcome deficits in cell therapy, we used microvesicles secreted from P8 hESC-NSCs (hESC-NSC-MVs) instead of entire hESC-NSCs. To investigate the therapeutic efficacy of hESC-NSC-MVs in vitro, hESC-NSC-MVs were cocultured with dorsal root ganglia to determine the length of axons. In vivo, we transected the sciatic nerve in SD rats and created a 5-mm gap. A sciatic nerve defect was bridged using a silicone tube filled with hESC-NSC-MVs (45 μg) in the MVs group, P8 hESC-NSCs (1 × 106 single cells) in the cell group and PBS in the control group. The hESC-NSC-MVs group showed better morphological recovery and a significantly greater number of regenerated axons than the hESC-NSCs group 12 weeks after nerve injury. These results indicated that the hESC-NSC-MVs group had the greatest ability to repair and reconstruct nerve structure and function. As a result, hESC-NSC-MVs may have potential for applications in the field of nerve regenerative repair.
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Affiliation(s)
- Xiang Chen
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, 301 Xuefu Road, Jingkou District, Zhenjiang City, 212013, Jiangsu Province, China
- Department of Clinical Laboratory, Nantong First People's Hospital, Nantong, 226000, Jiangsu, China
| | - Kai Ye
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, 301 Xuefu Road, Jingkou District, Zhenjiang City, 212013, Jiangsu Province, China
| | - Jiahong Yu
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, 301 Xuefu Road, Jingkou District, Zhenjiang City, 212013, Jiangsu Province, China
| | - Jianyi Gao
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, 301 Xuefu Road, Jingkou District, Zhenjiang City, 212013, Jiangsu Province, China
| | - Lei Zhang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, 301 Xuefu Road, Jingkou District, Zhenjiang City, 212013, Jiangsu Province, China
| | - Xianyan Ji
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, 301 Xuefu Road, Jingkou District, Zhenjiang City, 212013, Jiangsu Province, China
| | - Tianyan Chen
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, 301 Xuefu Road, Jingkou District, Zhenjiang City, 212013, Jiangsu Province, China
| | - Hui Wang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, 301 Xuefu Road, Jingkou District, Zhenjiang City, 212013, Jiangsu Province, China
| | - Yao Dai
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, 301 Xuefu Road, Jingkou District, Zhenjiang City, 212013, Jiangsu Province, China
| | - Bin Tang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, 301 Xuefu Road, Jingkou District, Zhenjiang City, 212013, Jiangsu Province, China
| | - Hong Xu
- Department of Clinical Laboratory, Zhenjiang Centre for Disease Prevention and Control, Zhenjiang, 212003, Jiangsu, China
| | - Xiaochun Sun
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, 301 Xuefu Road, Jingkou District, Zhenjiang City, 212013, Jiangsu Province, China
| | - Jiabo Hu
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, 301 Xuefu Road, Jingkou District, Zhenjiang City, 212013, Jiangsu Province, China.
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12
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Qian T, Qian K, Xu T, Shi J, Ma T, Song Z, Xu C, Li L. Efficacy evaluation of personalized coaptation in neurotization for motor deficit after peripheral nerve injury: A systematic review and meta-analysis. Brain Behav 2020; 10:e01582. [PMID: 32129004 PMCID: PMC7177589 DOI: 10.1002/brb3.1582] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Accepted: 02/10/2020] [Indexed: 12/23/2022] Open
Abstract
INTRODUCTION Peripheral neurotization, recently as a promising approach, has taken effect in recovering motor function after damage to a peripheral nerve root. Neural anastomosis comprised of nerve conduit and neurorrhaphy participates in the nerve reconstruction. Current literature lacks evidence supporting an individualized coaptation for rescue of locomotor loss in rat subjects with paraplegia secondary to peripheral nerve injury (PNI). METHODS This meta-analysis intends to qualify the specificity of gap-specific coaptation in treating a paralyzed limb following PNI. We used a highly sensitive search strategy to identify all published studies in multiple databases up to 1 May 2019. All identified trials were systematically evaluated using specific inclusion and exclusion criteria. Cochrane methodology was also applied to the results of this study. RESULTS Twelve studies, including 349 rat subjects, met eligibility criteria. For a medium nerve defect (0.5-3.0 cm), nerve conduit was more likely than neurorrhaphy to precipitate axon regeneration and improve motor outcome of the hemiplegic limb (OR = 3.61, 95% CI = 1.80, 7.26, p < .0003) at 3-month follow-up, whereas neurorrhaphy might take its place in promoting limb motor function in a small nerve gap (<0.5 cm) (OR = 0.48, 95% CI = 0.22, 1.07, p < .007). For a small nerve defect, nerve conduit still demonstrated visible effectiveness in recovery of limb motion albeit poorer than neurorrhaphy (OR = 1.50, 95% CI = 0.92, 2.47, p < .05). CONCLUSION Selective neurotization facilitates motor regeneration after nerve transection, and advisable choice of neural coaptation can maximize functional outcome on an individual basis.
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Affiliation(s)
- TengDa Qian
- Department of Neurosurgery, First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,Department of Neurosurgery, Jintan Hospital affiliated to Jiangsu University, Jintan, China
| | - Kai Qian
- Department of Neurosurgery, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - TuoYe Xu
- Department of Neurosurgery, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Jing Shi
- Department of Neurosurgery, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Tao Ma
- Department of Neurosurgery, First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,Department of Neurosurgery, Changzhou first people's Hospital, Suzhou University, Changzhou, China
| | - ZeWu Song
- Department of Neurosurgery, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - ChengMing Xu
- Department of Neurosurgery, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - LiXin Li
- Department of Neurosurgery, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
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13
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Fadia NB, Bliley JM, DiBernardo GA, Crammond DJ, Schilling BK, Sivak WN, Spiess AM, Washington KM, Waldner M, Liao HT, James IB, Minteer DM, Tompkins-Rhoades C, Cottrill AR, Kim DY, Schweizer R, Bourne DA, Panagis GE, Asher Schusterman M, Egro FM, Campwala IK, Simpson T, Weber DJ, Gause T, Brooker JE, Josyula T, Guevara AA, Repko AJ, Mahoney CM, Marra KG. Long-gap peripheral nerve repair through sustained release of a neurotrophic factor in nonhuman primates. Sci Transl Med 2020; 12:12/527/eaav7753. [DOI: 10.1126/scitranslmed.aav7753] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Revised: 08/26/2019] [Accepted: 11/25/2019] [Indexed: 01/09/2023]
Abstract
Severe injuries to peripheral nerves are challenging to repair. Standard-of-care treatment for nerve gaps >2 to 3 centimeters is autografting; however, autografting can result in neuroma formation, loss of sensory function at the donor site, and increased operative time. To address the need for a synthetic nerve conduit to treat large nerve gaps, we investigated a biodegradable poly(caprolactone) (PCL) conduit with embedded double-walled polymeric microspheres encapsulating glial cell line–derived neurotrophic factor (GDNF) capable of providing a sustained release of GDNF for >50 days in a 5-centimeter nerve defect in a rhesus macaque model. The GDNF-eluting conduit (PCL/GDNF) was compared to a median nerve autograft and a PCL conduit containing empty microspheres (PCL/Empty). Functional testing demonstrated similar functional recovery between the PCL/GDNF-treated group (75.64 ± 10.28%) and the autograft-treated group (77.49 ± 19.28%); both groups were statistically improved compared to PCL/Empty-treated group (44.95 ± 26.94%). Nerve conduction velocity 1 year after surgery was increased in the PCL/GDNF-treated macaques (31.41 ± 15.34 meters/second) compared to autograft (25.45 ± 3.96 meters/second) and PCL/Empty (12.60 ± 3.89 meters/second) treatment. Histological analyses included assessment of Schwann cell presence, myelination of axons, nerve fiber density, and g-ratio. PCL/GDNF group exhibited a statistically greater average area occupied by individual Schwann cells at the distal nerve (11.60 ± 33.01 μm2) compared to autograft (4.62 ± 3.99 μm2) and PCL/Empty (4.52 ± 5.16 μm2) treatment groups. This study demonstrates the efficacious bridging of a long peripheral nerve gap in a nonhuman primate model using an acellular, biodegradable nerve conduit.
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Affiliation(s)
- Neil B. Fadia
- Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Jacqueline M. Bliley
- Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | | | - Donald J. Crammond
- Department of Neurosurgery, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | | | - Wesley N. Sivak
- Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Alexander M. Spiess
- Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Kia M. Washington
- Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Matthias Waldner
- Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Han-Tsung Liao
- Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Isaac B. James
- Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Danielle M. Minteer
- Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | | | - Adam R. Cottrill
- Department of Neuroscience, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Deok-Yeol Kim
- Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Riccardo Schweizer
- Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Debra A. Bourne
- Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - George E. Panagis
- Department of Biology, University of Pittsburgh, Greensburg, PA 15601, USA
| | - M. Asher Schusterman
- Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Francesco M. Egro
- Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | | | - Tyler Simpson
- Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Douglas J. Weber
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15213, USA
- Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, PA 15213, USA
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15219, USA
| | - Trent Gause
- Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Jack E. Brooker
- Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Tvisha Josyula
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Astrid A. Guevara
- Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Alexander J. Repko
- Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | | | - Kacey G. Marra
- Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, PA 15213, USA
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15213, USA
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15219, USA
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14
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Gong H, Fei H, Xu Q, Gou M, Chen HH. 3D‐engineered GelMA conduit filled with ECM promotes regeneration of peripheral nerve. J Biomed Mater Res A 2019; 108:805-813. [PMID: 31808270 DOI: 10.1002/jbm.a.36859] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2019] [Revised: 11/21/2019] [Accepted: 11/22/2019] [Indexed: 02/05/2023]
Affiliation(s)
| | | | | | - Maling Gou
- Department of Biotherapy Cancer Center, West China Hospital, Sichuan University Chengdu China
| | - Harry H. Chen
- StemEasy Biotech Jiangyin China
- Department of Biotherapy Cancer Center, West China Hospital, Sichuan University Chengdu China
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15
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Pyatin VF, Tuturov AO. [Significance of the composition of conduit internal environment for the activation of axon growth in patients with extended peripheral nerve defects]. Zh Nevrol Psikhiatr Im S S Korsakova 2019; 119:100-105. [PMID: 31156230 DOI: 10.17116/jnevro2019119041100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The recovery of peripheral nerves after injury is an urgent medical problem. Despite the advances in microsurgery techniques, it is still not possible to achieve complete holistic and functional recovery. It is more difficult to repair neural tissue after injury if there is a diastasis between the injured ends nerves. In this case, neurorraphy can not be carried out due to the eruption of the filaments in tension and convergence of proximal and distal ends of the axon. Modern tactics of restoration of extended defects of nerves involves the use of conduits - cylindrical conductors, overlapping posttraumatic diastasis, in order to create a vector of regeneration from the proximal part of the nerve to the distal. An ideal conduit should contain an internal environment that stimulates the recovery processes of nerve fibers. At present, there is no unified approach involving the use of a certain natural or artificial conduit environment. The review analyzes the regenerative potential of the internal environments of conduits as the most promising in modern biotechnologies for the reconstruction of extended peripheral nerve defects.
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Affiliation(s)
- V F Pyatin
- Samara State Medical University, Samara, Russia
| | - A O Tuturov
- Samara State Medical University, Samara, Russia
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16
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Wu JP, Jiang ZH, Feng XJ, Jiang JN, Cheng MH. Negative Pressure Therapy in the Regeneration of the Sciatic Nerve Using Vacuum - Assisted Closure in a Rabbit Model. Med Sci Monit 2018; 24:1027-1033. [PMID: 29457605 PMCID: PMC5827701 DOI: 10.12659/msm.906696] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Background The aim of this study was to investigate the effects of negative pressure therapy in the regeneration of the rabbit sciatic nerve using vacuum assisted closure (VAC). Material/Methods Thirty male New Zealand white rabbits underwent surgical injury of the sciatic nerve, followed by negative pressure therapy using vacuum assisted closure (VAC), in three treatment groups: Group A: 0 kPa; Group B: −20 kPa; Group C: −40 kPa. At 12 weeks following surgery, the following factors were studied: motor nerve conduction velocity (MNCV); the number of myelinated nerve fibers; the wet weight of the gastrocnemius muscle. Gastrocnemius muscle and sciatic nerve tissue samples were studied for the expression of S100, and brain-derived neurotrophic factor (BDNF) using Western blot. Results At 12 weeks following VAC treatment, the MNCV, number of myelinated nerve fibers, and wet weight of the gastrocnemius muscle showed significant differences between the groups (p<0.05), in the following order: Group B >Group A >Group C. The sciatic nerve at 12 weeks following VAC in Group B and Group C showed a significant increase in expression of S100 and BDNF when compared with Group A; no significant differences were detected between Group B and Group C results from Western blot at 12 weeks. Conclusions The findings of this study, using negative pressure therapy in VAC in a rabbit model of sciatic nerve damage, have shown that moderate negative pressure was beneficial, but high values did not benefit sciatic nerve repair.
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Affiliation(s)
- Jian-Ping Wu
- Department of Orthopaedics, Yixing Hospital of Jiangsu Unversity, Yixin, Jiangsu, China (mainland)
| | - Zhen-Huan Jiang
- Department of Orthopaedics, Yixing Hospital of Jiangsu Unversity, Yixin, Jiangsu, China (mainland)
| | - Xiao-Jun Feng
- Xishan People's Hospital of Wuxi, Wuxing, Jiangsu, China (mainland)
| | - Jian-Nong Jiang
- Department of Orthopaedics, Yixing Hospital of Jiangsu Unversity, Yixin, Jiangsu, China (mainland)
| | - Mao-Hua Cheng
- Department of Orthopaedics, The Second Affiliated Hospital of Soochow, Suzhou, Jiangsu, China (mainland)
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17
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Biscola NP, Cartarozzi LP, Ulian-Benitez S, Barbizan R, Castro MV, Spejo AB, Ferreira RS, Barraviera B, Oliveira ALR. Multiple uses of fibrin sealant for nervous system treatment following injury and disease. J Venom Anim Toxins Incl Trop Dis 2017; 23:13. [PMID: 28293254 PMCID: PMC5348778 DOI: 10.1186/s40409-017-0103-1] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Accepted: 02/23/2017] [Indexed: 12/14/2022] Open
Abstract
Lesions to the nervous system often produce hemorrhage and tissue loss that are difficult, if not impossible, to repair. Therefore, scar formation, inflammation and cavitation take place, expanding the lesion epicenter. This significantly worsens the patient conditions and impairment, increasing neuronal loss and glial reaction, which in turn further decreases the chances of a positive outcome. The possibility of using hemostatic substances that also function as a scaffold, such as the fibrin sealant, reduces surgical time and improve postoperative recovery. To date, several studies have demonstrated that human blood derived fibrin sealant produces positive effects in different interventions, becoming an efficient alternative to suturing. To provide an alternative to homologous fibrin sealants, the Center for the Study of Venoms and Venomous Animals (CEVAP, Brazil) has proposed a new bioproduct composed of certified animal components, including a thrombin-like enzyme obtained from snake venom and bubaline fibrinogen. Thus, the present review brings up to date literature assessment on the use of fibrin sealant for nervous system repair and positions the new heterologous bioproduct from CEVAP as an alternative to the commercial counterparts. In this way, clinical and pre-clinical data are discussed in different topics, ranging from central nervous system to peripheral nervous system applications, specifying positive results as well as future enhancements that are necessary for improving the use of fibrin sealant therapy.
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Affiliation(s)
- Natalia Perussi Biscola
- Graduate Program in Tropical Diseases, Botucatu Medical School, Univ Estadual Paulista (UNESP), Botucatu, SP Brazil.,Center for the Study of Venoms and Venomous Animals (CEVAP), Univ Estadual Paulista (UNESP), Botucatu, SP Brazil.,Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), Laboratory of Nerve Regeneration, CEP 13083-970 Campinas, SP Brazil
| | - Luciana Politti Cartarozzi
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), Laboratory of Nerve Regeneration, CEP 13083-970 Campinas, SP Brazil
| | - Suzana Ulian-Benitez
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), Laboratory of Nerve Regeneration, CEP 13083-970 Campinas, SP Brazil.,Neuro Development Lab, School of Biosciences, University of Birmingham, Birmingham, England UK
| | - Roberta Barbizan
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), Laboratory of Nerve Regeneration, CEP 13083-970 Campinas, SP Brazil.,The School of Medicine at Mucuri (FAMMUC), Federal University of Jequitinhonha and Mucuri Valleys (UFVJM), 39803-371 Teófilo Otoni, MG Brazil
| | - Mateus Vidigal Castro
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), Laboratory of Nerve Regeneration, CEP 13083-970 Campinas, SP Brazil
| | - Aline Barroso Spejo
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), Laboratory of Nerve Regeneration, CEP 13083-970 Campinas, SP Brazil
| | - Rui Seabra Ferreira
- Graduate Program in Tropical Diseases, Botucatu Medical School, Univ Estadual Paulista (UNESP), Botucatu, SP Brazil.,Center for the Study of Venoms and Venomous Animals (CEVAP), Univ Estadual Paulista (UNESP), Botucatu, SP Brazil
| | - Benedito Barraviera
- Graduate Program in Tropical Diseases, Botucatu Medical School, Univ Estadual Paulista (UNESP), Botucatu, SP Brazil.,Center for the Study of Venoms and Venomous Animals (CEVAP), Univ Estadual Paulista (UNESP), Botucatu, SP Brazil
| | - Alexandre Leite Rodrigues Oliveira
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), Laboratory of Nerve Regeneration, CEP 13083-970 Campinas, SP Brazil
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18
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Mohammadi J, Delaviz H, Mohammadi B, Delaviz H, Rad P. Comparison of repair of peripheral nerve transection in predegenerated muscle with and without a vein graft. BMC Neurol 2016; 16:237. [PMID: 27876000 PMCID: PMC5120544 DOI: 10.1186/s12883-016-0768-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Accepted: 11/17/2016] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Despite substantial research into the topic and valiant surgical efforts, reconstruction of peripheral nerve injury remains a challenging surgery. This study was conducted to evaluate the effectiveness of axonal regeneration of a transected sciatic nerve through a vein conduit containing degenerated skeletal muscle compared with axonal regeneration in a transected sciatic nerve through degenerated skeletal muscle alone. METHODS In two of the three experimental rat groups, 10 mm of the left sciatic nerve was transected and removed. The proximal and distal ends of the transected sciatic nerve were then approximated and surrounded with either (a) a degenerated skeletal muscle graft; or (b) a graft containing both degenerated skeletal muscle and vein. In the group receiving the combined vein and skeletal muscle graft, the vein walls were subsequently sutured to the proximal and distal nerve stump epineurium. Sciatic functional index (SFI) was used for assessment of functional recovery. Tracing study and histological procedures were used to assess axonal regeneration. RESULTS At 60 days, the gait functional recovery as well as the mean number of myelinated axons in the middle and distal parts of the sciatic nerve significantly increased in the group with the vein graft compared to rats with only the muscular graft (P < 0.05). Mean diameter of myelinated nerve fiber of the distal sciatic nerve was also improved with the vein graft compared to the muscle graft alone (P < 0.05). The mean number of DiI-labeled motor neurons in the L4-L5 spinal segment increased in the vein with muscle group but was not significantly different between the two groups. CONCLUSIONS These findings demonstrated that a graft consisting of not only predegenerated muscle, but also predegenerated muscle with vein more effectively supported nerve regeneration, thus promoting functional recovery after sciatic nerve injury in rats.
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Affiliation(s)
- Jamshid Mohammadi
- Medicinal Plants Research Centre, Faculty of Medicine, Yasuj University of Medical Sciences, Yasuj, Iran
| | - Hamdollah Delaviz
- Cellular and Molecular Research Center, Faculty of Medicine, Yasuj University of Medical Sciences, P.o.Box: 7591994799, Yasuj, Iran.
| | - Bahram Mohammadi
- Department of Pediatrics, Yasuj University of Medical Sciences, Yasuj, Iran
| | - Hamoun Delaviz
- The University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA
| | - Parastou Rad
- Department of Midwifery, Yasuj University of Medical, Yasuj, Iran
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Jiang CQ, Hu J, Xiang JP, Zhu JK, Liu XL, Luo P. Tissue-engineered rhesus monkey nerve grafts for the repair of long ulnar nerve defects: similar outcomes to autologous nerve grafts. Neural Regen Res 2016; 11:1845-1850. [PMID: 28123431 PMCID: PMC5204243 DOI: 10.4103/1673-5374.194757] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Acellular nerve allografts can help preserve normal nerve structure and extracellular matrix composition. These allografts have low immunogenicity and are more readily available than autologous nerves for the repair of long-segment peripheral nerve defects. In this study, we repaired a 40-mm ulnar nerve defect in rhesus monkeys with tissue-engineered peripheral nerve, and compared the outcome with that of autograft. The graft was prepared using a chemical extract from adult rhesus monkeys and seeded with allogeneic Schwann cells. Pathomorphology, electromyogram and immunohistochemistry findings revealed the absence of palmar erosion or ulcers, and that the morphology and elasticity of the hypothenar eminence were normal 5 months postoperatively. There were no significant differences in the mean peak compound muscle action potential, the mean nerve conduction velocity, or the number of neurofilaments between the experimental and control groups. However, outcome was significantly better in the experimental group than in the blank group. These findings suggest that chemically extracted allogeneic nerve seeded with autologous Schwann cells can repair 40-mm ulnar nerve defects in the rhesus monkey. The outcomes are similar to those obtained with autologous nerve graft.
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Affiliation(s)
- Chang-Qing Jiang
- Department of Sports Medicine and Rehabilitation, Peking Universtiy Shenzhen Hospital, Shenzhen, Guangdong Province, China
| | - Jun Hu
- Department of Microscopy, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Jian-Ping Xiang
- Department of Microscopy, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Jia-Kai Zhu
- Department of Microscopy, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Xiao-Lin Liu
- Department of Microscopy, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Peng Luo
- The Sixth People's Hospital of Shenzhen City, Shenzhen, Guangdong Province, China
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