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Wang Z, Li S, Wu Z, Kang Y, Xie S, Cai Z, Shan X, Li Q. Pulsed electromagnetic field-assisted reduced graphene oxide composite 3D printed nerve scaffold promotes sciatic nerve regeneration in rats. Biofabrication 2024; 16:035013. [PMID: 38604162 DOI: 10.1088/1758-5090/ad3d8a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Accepted: 04/11/2024] [Indexed: 04/13/2024]
Abstract
Peripheral nerve injuries can lead to sensory or motor deficits that have a serious impact on a patient's mental health and quality of life. Nevertheless, it remains a major clinical challenge to develop functional nerve conduits as an alternative to autologous grafts. We applied reduced graphene oxide (rGO) as a bioactive conductive material to impart electrophysiological properties to a 3D printed scaffold and the application of a pulsed magnetic field to excite the formation of microcurrents and induce nerve regeneration.In vitrostudies showed that the nerve scaffold and the pulsed magnetic field made no effect on cell survival, increased S-100βprotein expression, enhanced cell adhesion, and increased the expression level of nerve regeneration-related mRNAs.In vivoexperiments suggested that the protocol was effective in promoting nerve regeneration, resulting in functional recovery of sciatic nerves in rats, when they were damaged close to that of the autologous nerve graft, and increased expression of S-100β, NF200, and GAP43. These results indicate that rGO composite nerve scaffolds combined with pulsed magnetic field stimulation have great potential for peripheral nerve rehabilitation.
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Affiliation(s)
- Zichao Wang
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing 100081, People's Republic of China
- National Center for Stomatology, Beijing 100081, People's Republic of China
- National Clinical Research Center for Oral Diseases, Beijing 100081, People's Republic of China
- National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing 100081, People's Republic of China
- Beijing Key Laboratory of Digital Stomatology and NHC Key Laboratory of Digital Stomatology and NMPA Key Laboratory for Dental Materials, Beijing 100081, People's Republic of China
| | - Shijun Li
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing 100081, People's Republic of China
- National Center for Stomatology, Beijing 100081, People's Republic of China
- National Clinical Research Center for Oral Diseases, Beijing 100081, People's Republic of China
- National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing 100081, People's Republic of China
- Beijing Key Laboratory of Digital Stomatology and NHC Key Laboratory of Digital Stomatology and NMPA Key Laboratory for Dental Materials, Beijing 100081, People's Republic of China
| | - Zongxi Wu
- Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Sun Yat-sen University, Guangzhou 510030, People's Republic of China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510030, People's Republic of China
| | - Yifan Kang
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing 100081, People's Republic of China
- National Center for Stomatology, Beijing 100081, People's Republic of China
- National Clinical Research Center for Oral Diseases, Beijing 100081, People's Republic of China
- National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing 100081, People's Republic of China
- Beijing Key Laboratory of Digital Stomatology and NHC Key Laboratory of Digital Stomatology and NMPA Key Laboratory for Dental Materials, Beijing 100081, People's Republic of China
| | - Shang Xie
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing 100081, People's Republic of China
- National Center for Stomatology, Beijing 100081, People's Republic of China
- National Clinical Research Center for Oral Diseases, Beijing 100081, People's Republic of China
- National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing 100081, People's Republic of China
- Beijing Key Laboratory of Digital Stomatology and NHC Key Laboratory of Digital Stomatology and NMPA Key Laboratory for Dental Materials, Beijing 100081, People's Republic of China
| | - Zhigang Cai
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing 100081, People's Republic of China
- National Center for Stomatology, Beijing 100081, People's Republic of China
- National Clinical Research Center for Oral Diseases, Beijing 100081, People's Republic of China
- National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing 100081, People's Republic of China
- Beijing Key Laboratory of Digital Stomatology and NHC Key Laboratory of Digital Stomatology and NMPA Key Laboratory for Dental Materials, Beijing 100081, People's Republic of China
| | - Xiaofeng Shan
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing 100081, People's Republic of China
- National Center for Stomatology, Beijing 100081, People's Republic of China
- National Clinical Research Center for Oral Diseases, Beijing 100081, People's Republic of China
- National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing 100081, People's Republic of China
- Beijing Key Laboratory of Digital Stomatology and NHC Key Laboratory of Digital Stomatology and NMPA Key Laboratory for Dental Materials, Beijing 100081, People's Republic of China
| | - Qing Li
- National Center for Stomatology, Beijing 100081, People's Republic of China
- National Clinical Research Center for Oral Diseases, Beijing 100081, People's Republic of China
- National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing 100081, People's Republic of China
- Center of Digital Dentistry, Second Clinical Division, Peking University School and Hospital of Stomatology and National Center of Stomatology, Beijing 100081, People's Republic of China
- Beijing Key Laboratory of Digital Stomatology and NHC Key Laboratory of Digital Stomatology and NMPA Key Laboratory for Dental Materials, Beijing 100081, People's Republic of China
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Mitropoulou A, Markatos DN, Dimopoulos A, Marazioti A, Mikelis CM, Mavrilas D. Development and Evaluation of Biodegradable Core-Shell Microfibrous and Nanofibrous Scaffolds for Tissue Engineering Applications. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2024; 35:10. [PMID: 38285092 PMCID: PMC10824864 DOI: 10.1007/s10856-024-06777-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 01/09/2024] [Indexed: 01/30/2024]
Abstract
Tissue engineering scaffolds as three-dimensional substrates may serve as ideal templates for tissue regeneration by simulating the structure of the extracellular matrix (ECM). Many biodegradable synthetic polymers, either hydrophobic, like Poly-ε-caprolactone (PCL), or hydrophilic, like Poly(Vinyl Alcohol) (PVA), are widely used as candidate bioactive materials for fabricating tissue engineering scaffolds. However, a combination of good cytocompatibility of hydrophilic polymers with good biomechanical performance of hydrophobic polymers could be beneficial for the in vivo performance of the scaffolds. In this study, we aimed to fabricate biodegradable fibrous scaffolds by combining the properties of hydrophobic PCL with those of hydrophilic PVA and evaluate their properties in comparison with pristine PCL scaffolds. Therefore, single-layered PCL scaffolds, sequential tri-layered (PVA/PCL/PVA), and core-shell (PVA as shell and PCL as core) composite scaffolds were developed utilizing the electrospinning technique. The material structural and biomechanical properties of the electrospun scaffolds, before and after their hydrolytic degradation over a seven-month period following storage in phosphate-buffered saline (PBS) at 37 °C, were comprehensively compared. In addition, human embryonic kidney cells (HEK-293) were cultured on the scaffolds to investigate potential cell attachment, infiltration, and proliferation. The results demonstrated the long-term efficacy of core-shell biodegradable fibrous scaffolds in comparison to single-layers PCL and tri-layers PVA/PCL/PVA, not only due to its superior morphological characteristics and mechanical properties, but also due to its ability to promote homogeneous cell distribution and proliferation, without any external chemical or physical stimuli.
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Affiliation(s)
- Athina Mitropoulou
- Department of Mechanical Engineering and Aeronautics, Laboratory of Biomechanics and Biomedical Engineering, University of Patras, Patras, GR, Greece.
| | - Dionysios N Markatos
- Department of Mechanical Engineering and Aeronautics, Laboratory of Technology and Strength of Materials, University of Patras, Patras, GR, Greece
| | - Andreas Dimopoulos
- Prometheus Division of Skeletal Tissue Engineering, KU Leuven, Leuven, Belgium
- Skeletal Biology and Engineering Research Center, Department of Development and Regeneration, KU Leuven, Leuven, Belgium
| | - Antonia Marazioti
- Department of Physiotherapy, Laboratory of Basic Sciences, University of Peloponnese, Sparta, GR, Greece
| | | | - Dimosthenis Mavrilas
- Department of Mechanical Engineering and Aeronautics, Laboratory of Biomechanics and Biomedical Engineering, University of Patras, Patras, GR, Greece
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3
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Zou X, Dong Y, Alhaskawi A, Zhou H, Ezzi SHA, Kota VG, Abdulla MHAH, Abdalbary SA, Lu H, Wang C. Techniques and graft materials for repairing peripheral nerve defects. Front Neurol 2024; 14:1307883. [PMID: 38318237 PMCID: PMC10839026 DOI: 10.3389/fneur.2023.1307883] [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: 10/05/2023] [Accepted: 12/15/2023] [Indexed: 02/07/2024] Open
Abstract
Peripheral nerve defects refer to damage or destruction occurring in the peripheral nervous system, typically affecting the limbs and face. The current primary approaches to address peripheral nerve defects involve the utilization of autologous nerve transplants or the transplantation of artificial material. Nevertheless, these methods possess certain limitations, such as inadequate availability of donor nerve or unsatisfactory regenerative outcomes post-transplantation. Biomaterials have been extensively studied as an alternative approach to promote the repair of peripheral neve defects. These biomaterials include both natural and synthetic materials. Natural materials consist of collagen, chitosan, and silk, while synthetic materials consist of polyurethane, polylactic acid, and polycaprolactone. Recently, several new neural repair technologies have also been developed, such as nerve regeneration bridging technology, electrical stimulation technology, and stem cell therapy technology. Overall, biomaterials and new neural repair technologies provide new methods and opportunities for repairing peripheral nerve defects. However, these methods still require further research and development to enhance their effectiveness and feasibility.
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Affiliation(s)
- Xiaodi Zou
- Department of Orthopedics, The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
- Department of Orthopedics, The First Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Yanzhao Dong
- Department of Orthopedics, The First Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Ahmad Alhaskawi
- Department of Orthopedics, The First Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Haiying Zhou
- Faculty of Medicine, The Chinese University of Hong Kong School of Biomedical Science, Shatin, China
| | | | | | | | - Sahar Ahmed Abdalbary
- Department of Orthopedic Physical Therapy, Faculty of Physical Therapy, Nahda University in Beni Suef, Beni Suef, Egypt
| | - Hui Lu
- Department of Orthopedics, The First Affiliated Hospital, Zhejiang University, Hangzhou, China
- Alibaba-Zhejiang University Joint Research Center of Future Digital Healthcare, Zhejiang University, Hangzhou, China
| | - Changxin Wang
- Department of Orthopedics, The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
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Li X, Zhang X, Hao M, Wang D, Jiang Z, Sun L, Gao Y, Jin Y, Lei P, Zhuo Y. The application of collagen in the repair of peripheral nerve defect. Front Bioeng Biotechnol 2022; 10:973301. [PMID: 36213073 PMCID: PMC9542778 DOI: 10.3389/fbioe.2022.973301] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 08/19/2022] [Indexed: 11/13/2022] Open
Abstract
Collagen is a natural polymer expressed in the extracellular matrix of the peripheral nervous system. It has become increasingly crucial in peripheral nerve reconstruction as it was involved in regulating Schwann cell behaviors, maintaining peripheral nerve functions during peripheral nerve development, and being strongly upregulated after nerve injury to promote peripheral nerve regeneration. Moreover, its biological properties, such as low immunogenicity, excellent biocompatibility, and biodegradability make it a suitable biomaterial for peripheral nerve repair. Collagen provides a suitable microenvironment to support Schwann cells’ growth, proliferation, and migration, thereby improving the regeneration and functional recovery of peripheral nerves. This review aims to summarize the characteristics of collagen as a biomaterial, analyze its role in peripheral nerve regeneration, and provide a detailed overview of the recent advances concerning the optimization of collagen nerve conduits in terms of physical properties and structure, as well as the application of the combination with the bioactive component in peripheral nerve regeneration.
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Affiliation(s)
- Xiaolan Li
- Department of Neurology and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Xiang Zhang
- Department of Neurology and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Ming Hao
- School of Acupuncture-Moxi Bustion and Tuina, Changchun University of Chinese Medicine, Changchun, China
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Jilin University, Changchun, China
| | - Dongxu Wang
- Laboratory Animal Center, College of Animal Science, Jilin University, Changchun, China
| | - Ziping Jiang
- Department of Hand and Foot Surgery, The First Hospital of Jilin University, Changchun, China
| | - Liqun Sun
- Department of Pediatrics, First Hospital of Jilin University, Changchun, China
| | - Yongjian Gao
- Department of Gastrointestinal Colorectal and Anal Surgery, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Ye Jin
- Department of Pharmacy, Changchun University of Chinese Medicine, Changchun, China
| | - Peng Lei
- Department of Neurology and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
- *Correspondence: Peng Lei, ; Yue Zhuo,
| | - Yue Zhuo
- School of Acupuncture-Moxi Bustion and Tuina, Changchun University of Chinese Medicine, Changchun, China
- *Correspondence: Peng Lei, ; Yue Zhuo,
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Idrisova KF, Zeinalova AK, Masgutova GA, Bogov AA, Allegrucci C, Syromiatnikova VY, Salafutdinov II, Garanina EE, Andreeva DI, Kadyrov AA, Rizvanov AA, Masgutov RF. Application of neurotrophic and proangiogenic factors as therapy after peripheral nervous system injury. Neural Regen Res 2022; 17:1240-1247. [PMID: 34782557 PMCID: PMC8643040 DOI: 10.4103/1673-5374.327329] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 10/14/2020] [Accepted: 06/04/2021] [Indexed: 11/24/2022] Open
Abstract
The intrinsic ability of peripheral nerves to regenerate after injury is extremely limited, especially in case of severe injury. This often leads to poor motor function and permanent disability. Existing approaches for the treatment of injured nerves do not provide appropriate conditions to support survival and growth of nerve cells. This drawback can be compensated by the use of gene therapy and cell therapy-based drugs that locally provide an increase in the key regulators of nerve growth, including neurotrophic factors and extracellular matrix proteins. Each growth factor plays its own specific angiotrophic or neurotrophic role. Currently, growth factors are widely studied as accelerators of nerve regeneration. Particularly noteworthy is synergy between various growth factors, that is essential for both angiogenesis and neurogenesis. Fibroblast growth factor 2 and vascular endothelial growth factor are widely known for their proangiogenic effects. At the same time, fibroblast growth factor 2 and vascular endothelial growth factor stimulate neural cell growth and play an important role in neurodegenerative diseases of the peripheral nervous system. Taken together, their neurotrophic and angiogenic properties have positive effect on the regeneration process. In this review we provide an in-depth overview of the role of fibroblast growth factor 2 and vascular endothelial growth factor in the regeneration of peripheral nerves, thus demonstrating their neurotherapeutic efficacy in improving neuron survival in the peripheral nervous system.
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Affiliation(s)
| | | | | | | | - Cinzia Allegrucci
- Biodiscovery Institute, School of Veterinary Medicine and Science, University of Nottingham, Nottingham, UK
| | | | | | | | | | | | | | - Ruslan Faridovich Masgutov
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
- Republican Clinical Hospital, Kazan, Russia
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Lu X, Han L, Kassab GS. Pulmonary Visceral Pleura Biomaterial: Elastin- and Collagen-Based Extracellular Matrix. Front Bioeng Biotechnol 2022; 10:796076. [PMID: 35433658 PMCID: PMC9006517 DOI: 10.3389/fbioe.2022.796076] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 02/28/2022] [Indexed: 12/17/2022] Open
Abstract
Objective: The goal of the study is to determine the structural characteristics, mechanical properties, cytotoxicity, and biocompatibility of the pulmonary visceral pleura (PVP).Background: Collagen and elastin are the major components of the extracellular matrix. The PVP has an abundance of elastin and collagen that can serve as a potential biomaterial for clinical repair and reconstructions.Methods: The PVP was processed from swine and bovine lungs. Chemical analyses were used to determine collagen and elastin contents in the PVPs. Immunofluorescence microscopy was used to analyze the structure of the PVP. The stress–strain relationships and stress relaxation were determined by using the planar uniaxial test. The cytotoxicity of the PVP was tested in cultured cells. In in vivo evaluations, the PVP was implanted in the sciatic nerve and skin of rats.Results: Collagen and elastin contents are abundant in the PVP with larger proportions of elastin than in the bovine pericardium and porcine small intestinal submucosa. A microstructural analysis revealed that the elastin fibers were distributed throughout the PVP and the collagen was distributed mainly in the mesothelial basal lamina. The incremental moduli in stress–strain curves and relaxation moduli in the Maxwell–Wiechert model of PVP were approximately one-tenth of the bovine pericardium and small intestinal submucosa. The minimal cytotoxicity of the PVP was demonstrated. The axons proliferated in the PVP conduit guidance from proximal to distal sciatic nerves of rats. The neo-skin regenerated under the PVP skin substitute within 4 weeks.Conclusions: The PVP is composed of abundant collagen and elastin. The structural characteristics and mechanical compliance of the PVP render a suitable biological material for repair/reconstruction.
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Bone Marrow Mesenchymal Stem Cell Condition Medium Loaded on PCL Nanofibrous Scaffold Promoted Nerve Regeneration After Sciatic Nerve Transection in Male Rats. Neurotox Res 2021; 39:1470-1486. [PMID: 34309780 DOI: 10.1007/s12640-021-00391-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 06/29/2021] [Accepted: 07/01/2021] [Indexed: 01/09/2023]
Abstract
Nowadays, researchers pay a vast deal of attention to neural tissue regeneration due to its tremendous effect on the patient's life. There are many strategies, from using conventional autologous nerve grafts to the newly developed methods for reconstructing damaged nerves. Among the various therapeutic methods, incorporating highly potent biomolecules and growth factors, the damaged nerve site would promote nerve regeneration. The aim was to examine the efficiency of a mesenchymal stem cell condition medium (MSC-CM) loaded on a 3D-polycaprolactone (PCL) scaffold as a nerve conduit in an axotomy rat model. Twenty-four mature male rats were classified into four groups: controls (the animals of this group were intact), axotomy (10 mm piece of the nerve was removed), axotomy (10-mm piece of the nerve was removed) + scaffold, and axotomy (10-mm piece of the nerve was removed) + MSC-CM-loaded scaffold. We followed up nerve motor function using a sciatic function index and electromyography activity of the gastrocnemius muscle. At 12 weeks post axotomy, sciatic nerve and dorsal root ganglion specimens and L4 and L5 spinal cord segments were separated from the rats and were analyzed by stereological, immunohistochemistry, and RT-PCR procedures. The rats of the axotomy group presented the expected gross locomotor deficit. Stereological parameters, immunohistochemistry of GFAP, and gene expression of S100, NGF, and BDNF were significantly enhanced in the CM-loaded scaffold group compared with the axotomy group. The most observed similarity was noted between the results of the control group and the CM-loaded scaffold group. Our results support the potential applicability of MSC-CM-loaded PCL nanofibrous scaffold to treat peripheral nerve injury (PNI).
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Millán D, Jiménez RA, Nieto LE, Poveda IY, Torres MA, Silva AS, Ospina LF, Mano JF, Fontanilla MR. Adjustable conduits for guided peripheral nerve regeneration prepared from bi-zonal unidirectional and multidirectional laminar scaffold of type I collagen. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 121:111838. [PMID: 33579476 DOI: 10.1016/j.msec.2020.111838] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 12/14/2020] [Accepted: 12/22/2020] [Indexed: 11/24/2022]
Abstract
Shortness of donor nerves has led to the development of nerve conduits that connect sectioned peripheral nerve stumps and help to prevent the formation of neuromas. Often, the standard diameters of these devices cannot be adapted at the time of surgery to the diameter of the nerve injured. In this work, scaffolds were developed to form filled nerve conduits with an inner matrix with unidirectional channels covered by a multidirectional pore zone. Collagen type I dispersions (5 mg/g and 8 mg/g) were sequentially frozen using different methods to obtain six laminar scaffolds (P1 to P5) formed by a unidirectional (U) pore/channel zone adjacent to a multidirectional (M) pore zone. The physicochemical and microstructural properties of the scaffolds were determined and compared, as well as their biodegradability, residual glutaraldehyde and cytocompatibility. Also, the Young's modulus of the conduits made by rolling up the bizonal scaffolds from the unidirectional to the multidirectional zone was determined. Based on these comparisons, the proliferation and differentiation of hASC were assessed only in the P3 scaffolds. The cells adhered, aligned in the same direction as the unidirectional porous fibers, proliferated, and differentiated into Schwann-like cells. Adjustable conduits made with the P3 scaffold were implanted in rats 10 mm sciatic nerve lesions to compare their performance with that of autologous sciatic nerve grafted lesions. The in vivo results demonstrated that the tested conduit can be adapted to the diameter of the nerve stumps to guide their growth and promote their regeneration.
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Affiliation(s)
- Diana Millán
- Tissue Engineering Group, Department of Pharmacy, Universidad Nacional de Colombia, Av. Carrera 30 # 45-10, 111321 Bogotá, Colombia; Universidad El Bosque, Facultad de Medicina, Colombia.
| | - Ronald A Jiménez
- Tissue Engineering Group, Department of Pharmacy, Universidad Nacional de Colombia, Av. Carrera 30 # 45-10, 111321 Bogotá, Colombia; Universidad El Bosque, Facultad de Ciencias, Colombia.
| | - Luis E Nieto
- Facultad de Medicina, Pontificia Universidad Javeriana, Carrera 7 # 40-62 Of 726, Bogotá, Colombia.
| | - Ivan Y Poveda
- Tissue Engineering Group, Department of Pharmacy, Universidad Nacional de Colombia, Av. Carrera 30 # 45-10, 111321 Bogotá, Colombia.
| | - Maria A Torres
- Tissue Engineering Group, Department of Pharmacy, Universidad Nacional de Colombia, Av. Carrera 30 # 45-10, 111321 Bogotá, Colombia.
| | - Ana S Silva
- Department of Chemistry, CICECO, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
| | - Luis F Ospina
- Department of Pharmacy, Universidad Nacional de Colombia, 111321, Av. Carrera 30 # 45-10, Bogotá, Colombia.
| | - João F Mano
- Department of Chemistry, CICECO, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
| | - Marta R Fontanilla
- Tissue Engineering Group, Department of Pharmacy, Universidad Nacional de Colombia, Av. Carrera 30 # 45-10, 111321 Bogotá, Colombia.
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Li G, Han Q, Lu P, Zhang L, Zhang Y, Chen S, Zhang P, Zhang L, Cui W, Wang H, Zhang H. Construction of Dual-Biofunctionalized Chitosan/Collagen Scaffolds for Simultaneous Neovascularization and Nerve Regeneration. RESEARCH (WASHINGTON, D.C.) 2020; 2020:2603048. [PMID: 32851386 PMCID: PMC7436332 DOI: 10.34133/2020/2603048] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Accepted: 07/10/2020] [Indexed: 01/20/2023]
Abstract
Biofunctionalization of artificial nerve implants by incorporation of specific bioactive factors has greatly enhanced the success of grafting procedures for peripheral nerve regeneration. However, most studies on novel biofunctionalized implants have emphasized the promotion of neuronal and axonal repair over vascularization, a process critical for long-term functional restoration. We constructed a dual-biofunctionalized chitosan/collagen composite scaffold with Ile-Lys-Val-Ala-Val (IKVAV) and vascular endothelial growth factor (VEGF) by combining solution blending, in situ lyophilization, and surface biomodification. Immobilization of VEGF and IKVAV on the scaffolds was confirmed both qualitatively by staining and quantitatively by ELISA. Various single- and dual-biofunctionalized scaffolds were compared for the promotion of endothelial cell (EC) and Schwann cell (SC) proliferation as well as the induction of angiogenic and neuroregeneration-associated genes by these cells in culture. The efficacy of these scaffolds for vascularization was evaluated by implantation in chicken embryos, while functional repair capacity in vivo was assessed in rats subjected to a 10 mm sciatic nerve injury. Dual-biofunctionalized scaffolds supported robust EC and SC proliferation and upregulated the expression levels of multiple genes and proteins related to neuroregeneration and vascularization. Dual-biofunctionalized scaffolds demonstrated superior vascularization induction in embryos and greater promotion of vascularization, myelination, and functional recovery in rats. These findings support the clinical potential of VEGF/IKVAV dual-biofunctionalized chitosan/collagen composite scaffolds for facilitating peripheral nerve regeneration, making it an attractive candidate for repairing critical nerve defect. The study may provide a critical experimental and theoretical basis for the development and design of new artificial nerve implants with excellent biological performance.
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Affiliation(s)
- Guicai Li
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Nantong University, 226001 Nantong, China
- Co-Innovation Center of Neuroregeneration, Nantong University, 226001 Nantong, China
| | - Qi Han
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Nantong University, 226001 Nantong, China
- Co-Innovation Center of Neuroregeneration, Nantong University, 226001 Nantong, China
| | - Panjian Lu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Nantong University, 226001 Nantong, China
- Co-Innovation Center of Neuroregeneration, Nantong University, 226001 Nantong, China
| | - Liling Zhang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Nantong University, 226001 Nantong, China
- Co-Innovation Center of Neuroregeneration, Nantong University, 226001 Nantong, China
| | - Yuezhou Zhang
- Frontiers Science Center for Flexible Electronics, Xi'an Institute of Flexible Electronics (IFE) & Xi'an Institute of Biomedical Materials and Engineering (IBME), Northwestern Polytechnical University, 127 West Youyi Road, Xi'an 710072, China
| | - Shiyu Chen
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Nantong University, 226001 Nantong, China
- Co-Innovation Center of Neuroregeneration, Nantong University, 226001 Nantong, China
| | - Ping Zhang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Nantong University, 226001 Nantong, China
- Co-Innovation Center of Neuroregeneration, Nantong University, 226001 Nantong, China
| | - Luzhong Zhang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Nantong University, 226001 Nantong, China
- Co-Innovation Center of Neuroregeneration, Nantong University, 226001 Nantong, China
| | - Wenguo Cui
- Shanghai Institute of Traumatology and Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
| | - Hongkui Wang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Nantong University, 226001 Nantong, China
- Co-Innovation Center of Neuroregeneration, Nantong University, 226001 Nantong, China
| | - Hongbo Zhang
- Shanghai Institute of Traumatology and Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
- Pharmaceutical Sciences Laboratory and Turku Bioscience Centre, Åbo Akademi University, 20520 Turku, Finland
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Takeuchi H, Ikeguchi R, Aoyama T, Oda H, Yurie H, Mitsuzawa S, Tanaka M, Ohta S, Akieda S, Miyazaki Y, Nakayama K, Matsuda S. A scaffold-free Bio 3D nerve conduit for repair of a 10-mm peripheral nerve defect in the rats. Microsurgery 2019; 40:207-216. [PMID: 31724780 DOI: 10.1002/micr.30533] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 08/13/2019] [Accepted: 10/25/2019] [Indexed: 12/28/2022]
Abstract
INTRODUCTION A Bio 3D printed nerve conduit was reported to promote nerve regeneration in a 5 mm nerve gap model. The purpose of this study was to fabricate Bio 3D nerve conduits suitable for a 10 mm nerve gap and to evaluate their capacity for nerve regeneration in a rat sciatic nerve defect model. MATERIALS AND METHODS Eighteen F344 rats with immune deficiency (9-10 weeks old; weight, 200-250 g) were divided into three groups: a Bio 3D nerve conduit group (Bio 3D, n = 6), a nerve graft group (NG, n = 6), and a silicon tube group (ST, n = 6). A 12-mm Bio 3D nerve conduit or silicon tube was transplanted into the 10-mm defect of the right sciatic nerve. In the nerve graft group, reverse autografting was performed with an excised 10-mm nerve segment. Assessments were performed at 8 weeks after the surgery. RESULTS In the region distal to the suture site, the number of myelinated axons in the Bio 3D group were significantly larger compared with the silicon group (2,548 vs. 950, p < .05). The myelinated axon diameter (MAD) and the myelin thickness (MT) of the regenerated axons in the Bio 3D group were significantly larger compared with those of the ST group (MAD: 3.09 vs. 2.36 μm; p < .01; MT: 0.59 vs. 0.40 μm, p < .01). CONCLUSIONS This study indicates that a Bio 3D nerve conduit can enhance peripheral nerve regeneration even in a 10 mm nerve defect model.
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Affiliation(s)
- Hisataka Takeuchi
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Ryosuke Ikeguchi
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Tomoki Aoyama
- Department of Physical Therapy, Human Health Science, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Hiroki Oda
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Hirofumi Yurie
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Sadaki Mitsuzawa
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Mai Tanaka
- Department of Physical Therapy, Human Health Science, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Souichi Ohta
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | | | | | - Koichi Nakayama
- Department of Regenerative Medicine and Biomedical Engineering Faculty of Medicine, Saga University, Saga, Japan
| | - Shuichi Matsuda
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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Hu JG, Pi JK, Jiang YL, Liu XF, Li-Ling J, Xie HQ. Collagen Hydrogel Functionalized with Collagen-Targeting IFNA2b Shows Apoptotic Activity in Nude Mice with Xenografted Tumors. ACS Biomater Sci Eng 2018; 5:272-282. [PMID: 33405860 DOI: 10.1021/acsbiomaterials.8b00490] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Jun-Gen Hu
- Laboratory of Stem Cell and Tissue Engineering, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, No. 1, Keyuan Fourth Road, Chengdu, Sichuan 610041, P. R. China
| | - Jin-Kui Pi
- Laboratory of Stem Cell and Tissue Engineering, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, No. 1, Keyuan Fourth Road, Chengdu, Sichuan 610041, P. R. China
| | - Yan-Lin Jiang
- Laboratory of Stem Cell and Tissue Engineering, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, No. 1, Keyuan Fourth Road, Chengdu, Sichuan 610041, P. R. China
| | - Xiao-Fan Liu
- West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, No. 17, Third Section, People’s South Road, Chengdu, Sichuan 610041, P. R. China
| | - Jesse Li-Ling
- Laboratory of Stem Cell and Tissue Engineering, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, No. 1, Keyuan Fourth Road, Chengdu, Sichuan 610041, P. R. China
- Institute of Genetic Medicine, School of Life Science, Sichuan University, No. 17, Third Section, People’s South Road, Chengdu, Sichuan 610041, P. R. China
| | - Hui-Qi Xie
- Laboratory of Stem Cell and Tissue Engineering, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, No. 1, Keyuan Fourth Road, Chengdu, Sichuan 610041, P. R. China
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12
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Shimizu M, Matsumine H, Osaki H, Ueta Y, Tsunoda S, Kamei W, Hashimoto K, Niimi Y, Watanabe Y, Miyata M, Sakurai H. Adipose-derived stem cells and the stromal vascular fraction in polyglycolic acid-collagen nerve conduits promote rat facial nerve regeneration. Wound Repair Regen 2018; 26:446-455. [PMID: 30118577 DOI: 10.1111/wrr.12665] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2017] [Accepted: 08/05/2018] [Indexed: 01/20/2023]
Abstract
Adipose-derived stem cells (ADSCs) and the stromal vascular fraction (SVF) promote nerve regeneration. Biodegradable nerve conduits are used to treat peripheral nerve injuries, but their efficiencies are lower than those of autologous nerve grafts. This study developed biodegradable nerve conduits containing ADSCs and SVF and evaluated their facial nerve regenerating abilities in a rat model with a 7-mm nerve defect. SVF and ADSCs were individually poured into nerve conduits with polyglycolic acid-type I collagen as a scaffold (ADSCs and SVF groups). The conduits were grafted on to the nerve defects. As the control, the defect was bridged with polyglycolic acid-collagen nerve conduits without cells. At 13 weeks, after transplantation, the regenerated nerves were evaluated physiologically and histologically. The compound muscle action potential of the SVF group was significantly higher in amplitude than that of the control group. Electron microscopy showed that the axon diameter of the SVF group was the largest, followed by the ADSC group and control group with significant differences among them. The SVF group had the largest fiber diameter, followed by the ADSC group and control group with significant differences among them. The ADSC group had the highest myelin thickness, followed by the SVF group and control group with significant differences among them. Identical excellent promoting effects on nerve regeneration were observed in both the ADSC and SVF groups. Using SVF in conduits was more practical than using ADSCs because only the enzymatic process was required to prepare SVF, indicating that SVF could be more suitable to induce nerve regeneration.
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Affiliation(s)
- Mari Shimizu
- Department of Plastic and Reconstructive Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Hajime Matsumine
- Department of Plastic and Reconstructive Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Hironobu Osaki
- Department of Physiology I (Neurophysiology), Tokyo Women's Medical University, Tokyo, Japan
| | - Yoshifumi Ueta
- Department of Physiology I (Neurophysiology), Tokyo Women's Medical University, Tokyo, Japan
| | - Satoshi Tsunoda
- Department of Plastic and Reconstructive Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Wataru Kamei
- Department of Plastic and Reconstructive Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Kazuki Hashimoto
- Department of Plastic and Reconstructive Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Yosuke Niimi
- Department of Plastic and Reconstructive Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Yorikatsu Watanabe
- Department of Plastic, Reconstructive and Aesthetic Surgery, Tokyo Metropolitan Police Hospital, Tokyo, Japan
| | - Mariko Miyata
- Department of Physiology I (Neurophysiology), Tokyo Women's Medical University, Tokyo, Japan
| | - Hiroyuki Sakurai
- Department of Plastic and Reconstructive Surgery, Tokyo Women's Medical University, Tokyo, Japan
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13
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Wang L, Shi Q, Dai J, Gu Y, Feng Y, Chen L. Increased vascularization promotes functional recovery in the transected spinal cord rats by implanted vascular endothelial growth factor-targeting collagen scaffold. J Orthop Res 2018; 36:1024-1034. [PMID: 28786500 DOI: 10.1002/jor.23678] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Accepted: 08/01/2017] [Indexed: 02/04/2023]
Abstract
Spinal cord injury (SCI) is global health concern. The effective strategies for SCI are relevant to the improvement on nerve regeneration microenvironment. Vascular endothelial growth factor (VEGF) is an important cytokine for inducing angiogenesis and accelerating nerve system function recovery from injury. We proposed that VEGF could improve nerve regeneration in SCI. However, an uncontrolled delivery system target to injury site not only decreases the therapeutic efficacy but also increases the risk of tumor information. We implanted collagen scaffold (CS) targeted with a constructed protein, collagen-binding VEGF (CBD-VEGF), to bridge transected spine cord gap in a rat transected SCI model. Functional and histological examinations were conducted to assess the repair capacity of the delivery system CS/CBD-VEGF. The results indicated that the implantation of CS/CBD-VEGF into the model rats improved the survival rate and exerted beneficial effect on functional recovery. The controlled intervention improved the microenvironment, guided axon growth, and promoted neovascularization at the injury site. Therefore, the delivery system with stable binding of VEGF potentially provides a better therapeutic option for SCI. © 2017 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 36:1024-1034, 2018.
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Affiliation(s)
- Lingjun Wang
- Department of Orthopedic, The First Affiliated Hospital of Soochow University, Suzhou, 215006, P.R. China
| | - Qin Shi
- Department of Orthopedic, The First Affiliated Hospital of Soochow University, Suzhou, 215006, P.R. China
| | - Jianwu Dai
- State Key Laboratory of Molecular Developmental Biology, Chinese Academy of Sciences, Institute of Genetics and Developmental Biology, Beijing, 100000, P.R. China
| | - Yong Gu
- Department of Orthopedic, The First Affiliated Hospital of Soochow University, Suzhou, 215006, P.R. China
| | - Yu Feng
- Department of Orthopedic, The First Affiliated Hospital of Soochow University, Suzhou, 215006, P.R. China
| | - Liang Chen
- Department of Orthopedic, The First Affiliated Hospital of Soochow University, Suzhou, 215006, P.R. China
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14
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Behbehani M, Glen A, Taylor CS, Schuhmacher A, Claeyssens F, Haycock JW. Pre-clinical evaluation of advanced nerve guide conduits using a novel 3D in vitro testing model. Int J Bioprint 2017; 4:123. [PMID: 33102907 PMCID: PMC7582002 DOI: 10.18063/ijb.v4i1.123] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Accepted: 11/22/2017] [Indexed: 01/20/2023] Open
Abstract
Autografts are the current gold standard for large peripheral nerve defects in clinics despite the frequently occurring side effects like donor site morbidity. Hollow nerve guidance conduits (NGC) are proposed alternatives to autografts, but failed to bridge gaps exceeding 3 cm in humans. Internal NGC guidance cues like microfibres are believed to enhance hollow NGCs by giving additional physical support for directed regeneration of Schwann cells and axons. In this study, we report a new 3D in vitro model that allows the evaluation of different intraluminal fibre scaffolds inside a complete NGC. The performance of electrospun polycaprolactone (PCL) microfibres inside 5 mm long polyethylene glycol (PEG) conduits were investigated in neuronal cell and dorsal root ganglion (DRG) cultures in vitro. Z-stack confocal microscopy revealed the aligned orientation of neuronal cells along the fibres throughout the whole NGC length and depth. The number of living cells in the centre of the scaffold was not significantly different to the tissue culture plastic (TCP) control. For ex vivo analysis, DRGs were placed on top of fibre-filled NGCs to simulate the proximal nerve stump. In 21 days of culture, Schwann cells and axons infiltrated the conduits along the microfibres with 2.2 ± 0.37 mm and 2.1 ± 0.33 mm, respectively. We conclude that this in vitro model can help define internal NGC scaffolds in the future by comparing different fibre materials, composites and dimensions in one setup prior to animal testing.
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Affiliation(s)
- Mehri Behbehani
- Department of Materials Science and Engineering, The University of Sheffield, UK
| | - Adam Glen
- Department of Materials Science and Engineering, The University of Sheffield, UK
| | - Caroline S Taylor
- Department of Materials Science and Engineering, The University of Sheffield, UK
| | | | - Frederik Claeyssens
- Department of Materials Science and Engineering, The University of Sheffield, UK
| | - John W Haycock
- Department of Materials Science and Engineering, The University of Sheffield, UK
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15
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Guo Q, Liu C, Hai B, Ma T, Zhang W, Tan J, Fu X, Wang H, Xu Y, Song C. Chitosan conduits filled with simvastatin/Pluronic F-127 hydrogel promote peripheral nerve regeneration in rats. J Biomed Mater Res B Appl Biomater 2017; 106:787-799. [PMID: 28371231 DOI: 10.1002/jbm.b.33890] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Revised: 02/23/2017] [Accepted: 03/18/2017] [Indexed: 01/03/2023]
Affiliation(s)
- Qi Guo
- Department of Neurology; Peking University Third Hospital; Beijing 100191 China
| | - Can Liu
- Department of Orthopedics; Peking University Third Hospital; Beijing 100191 China
| | - Bao Hai
- Department of Orthopedics; Peking University Third Hospital; Beijing 100191 China
| | - Teng Ma
- Department of Orthopedics; Peking University Third Hospital; Beijing 100191 China
| | - Wen Zhang
- Department of Orthopedics; Peking University Third Hospital; Beijing 100191 China
| | - Jie Tan
- Department of Orthopedics; Peking University Third Hospital; Beijing 100191 China
| | - Xin Fu
- Department of Orthopedics; Peking University Third Hospital; Beijing 100191 China
| | - Hong Wang
- Beijing Key Laboratory of Spinal Diseases; Beijing 100191 China
| | - Yingsheng Xu
- Department of Neurology; Peking University Third Hospital; Beijing 100191 China
| | - Chunli Song
- Department of Orthopedics; Peking University Third Hospital; Beijing 100191 China
- Beijing Key Laboratory of Spinal Diseases; Beijing 100191 China
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16
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Nune M, Subramanian A, Krishnan UM, Kaimal SS, Sethuraman S. Self-assembling peptide nanostructures on aligned poly(lactide-co-glycolide) nanofibers for the functional regeneration of sciatic nerve. Nanomedicine (Lond) 2017; 12:219-235. [DOI: 10.2217/nnm-2016-0323] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: Regeneration of functional peripheral nerve tissue at critical-sized defect requires extracellular matrix analogs impregnated with appropriate biosignals to regulate the cell fate process and subsequent tissue progression. The aim of the study was to develop electrospun aligned nanofibers as architectural analogs integrated with RADA16-I-BMHP1 as biofunctional peptides. Materials & methods: Aligned poly(lactide-co-glycolide) (PLGA)-RADA16-I-BMHP1 nanofibers were fabricated and characterized for their in vitro potential using rat Schwann cell line and in vivo potential using a 10 mm sciatic nerve transection rat model. Results: PLGA-peptide scaffolds significantly promoted higher expression of genotypic markers and bipolar extension of Schwann cells. Further, PLGA-peptide treated animals promoted the native collagen organization, remyelination and showed significantly higher recovery of sensorimotor and motor function than PLGA-treated groups (p < 0.05). Conclusion: Our results demonstrate that self-assembling peptide nanostructures on aligned PLGA nanofibers provided better cell–matrix communication with significant functional restoration of the sciatic nerve.
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Affiliation(s)
- Manasa Nune
- Centre for Nanotechnology & Advanced Biomaterials, School of Chemical & Biotechnology, SASTRA University, Thanjavur - 613401, Tamil Nadu, India
| | - Anuradha Subramanian
- Centre for Nanotechnology & Advanced Biomaterials, School of Chemical & Biotechnology, SASTRA University, Thanjavur - 613401, Tamil Nadu, India
| | - Uma Maheswari Krishnan
- Centre for Nanotechnology & Advanced Biomaterials, School of Chemical & Biotechnology, SASTRA University, Thanjavur - 613401, Tamil Nadu, India
| | - Suraj Sasidhara Kaimal
- Veterinary dispensary - Paliyode, Department of Animal Husbandry, Government of Kerala, Trivandrum - 695124, Kerala, India
| | - Swaminathan Sethuraman
- Centre for Nanotechnology & Advanced Biomaterials, School of Chemical & Biotechnology, SASTRA University, Thanjavur - 613401, Tamil Nadu, India
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17
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Si HB, Zeng Y, Lu YR, Cheng JQ, Shen B. Control-released basic fibroblast growth factor-loaded poly-lactic-co-glycolic acid microspheres promote sciatic nerve regeneration in rats. Exp Ther Med 2016; 13:429-436. [PMID: 28352311 PMCID: PMC5348676 DOI: 10.3892/etm.2016.4013] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Accepted: 10/04/2016] [Indexed: 02/05/2023] Open
Abstract
Although peripheral nerve injury may result in a loss of function in innervated areas, the most effective method for nerve regeneration remains to be determined. The aim of the present study was to investigate the effect of control-released basic fibroblast growth factor (bFGF)-loaded poly-lactic-co-glycolic acid (PLGA) microspheres on sciatic nerve regeneration following injury in rats. bFGF-PLGA microspheres were prepared and their characteristics were evaluated. The sciatic nerve was segmentally resected to create a 10 mm defect in 36 Sprague Dawley (SD) rats and, following the anastomosis of the nerve ends with a silicone tube, bFGF-PLGA microspheres, free bFGF or PBS were injected into the tube (n=12 in each group). The outcome of nerve regeneration was evaluated using the sciatic function index (SFI), electrophysiological test and histological staining at 6 weeks and 12 weeks post-surgery. The bFGF-PLGA microspheres were successfully synthesized with an encapsulation efficiency of 66.43%. The recovery of SFI and electrophysiological values were significantly greater (P<0.05), and morphological and histological observations were significantly greater (P<0.05) in bFGF-PLGA microspheres and bFGF groups compared with those in the PBS group, and the quickest recovery was observed in the bFGF-PLGA microspheres group. In conclusion, the bFGF-PLGA microspheres may promote nerve regeneration and functional recovery in the sciatic nerve, and may have potential therapeutic applications in peripheral nerve regeneration.
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Affiliation(s)
- Hai-Bo Si
- Department of Orthopaedics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China; Key Laboratory of Transplant Engineering and Immunology, Regenerative Medicine Research Centre, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Yi Zeng
- Department of Orthopaedics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Yan-Rong Lu
- Key Laboratory of Transplant Engineering and Immunology, Regenerative Medicine Research Centre, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Jing-Qiu Cheng
- Key Laboratory of Transplant Engineering and Immunology, Regenerative Medicine Research Centre, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Bin Shen
- Department of Orthopaedics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
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18
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Pinho AC, Fonseca AC, Serra AC, Santos JD, Coelho JFJ. Peripheral Nerve Regeneration: Current Status and New Strategies Using Polymeric Materials. Adv Healthc Mater 2016; 5:2732-2744. [PMID: 27600578 DOI: 10.1002/adhm.201600236] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Indexed: 12/16/2022]
Abstract
Experiments concerning peripheral nerve regeneration have been reported since the end of the 19th century. The need to implement an effective surgical procedure in terms of functional recovery has resulted in the appearance of several approaches to solve this problem. Nerve autograft was the first approach studied and is still considered the gold standard. Since autografts require donor harvesting, other strategies involving the use of natural materials have also been studied. Nevertheless, the results were not very encouraging and attention has moved towards the use of nerve conduits made from polymers, whose properties can be easily tailored and which allow the nerve conduit to be easily processed into a variety of shapes and forms. Some of these materials are already approved by the US Food and Drug Administration (FDA), as is presented here. Furthermore, polymers with conductive properties have very recently been subject to intensive study in this field, since it is believed that such properties have a positive influence in the regeneration of the new axons. This manuscript intends to give a global view of the mechanisms involved in peripheral nerve regeneration and the main strategies used to recover motor and sensorial function of injured nerves.
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Affiliation(s)
- Ana C. Pinho
- CEMUC Department of Chemical Engineering; University of Coimbra; Rua Sílvio Lima-Pólo II 3030-790 Coimbra Portugal
| | - Ana C. Fonseca
- CEMUC Department of Chemical Engineering; University of Coimbra; Rua Sílvio Lima-Pólo II 3030-790 Coimbra Portugal
| | - Arménio C. Serra
- CEMUC Department of Chemical Engineering; University of Coimbra; Rua Sílvio Lima-Pólo II 3030-790 Coimbra Portugal
| | - José D. Santos
- CEMUC Department of Metallurgical and Materials Engineering; University of Porto; Rua Dr Roberto Frias 4200-465 Porto Portugal
| | - Jorge F. J. Coelho
- CEMUC Department of Chemical Engineering; University of Coimbra; Rua Sílvio Lima-Pólo II 3030-790 Coimbra Portugal
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Shi J, Sun J, Zhang W, Liang H, Shi Q, Li X, Chen Y, Zhuang Y, Dai J. Demineralized Bone Matrix Scaffolds Modified by CBD-SDF-1α Promote Bone Regeneration via Recruiting Endogenous Stem Cells. ACS APPLIED MATERIALS & INTERFACES 2016; 8:27511-27522. [PMID: 27686136 DOI: 10.1021/acsami.6b08685] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The reconstruction of bone usually depends on substitute transplantation, which has drawbacks including the limited bone substitutes available, comorbidity, immune rejection, and limited endogenous bone regeneration. Here, we constructed a functionalized bone substitute by combining application of the demineralized bone matrix (DBM) and collagen-binding stromal-cell-derived factor-1α (CBD-SDF-1α). DBM was a poriferous and biodegradable bone substitute, derived from bovine bone and consisting mainly of collagen. CBD-SDF-1α could bind to collagen and be controllably released from the DBM to mobilize stem cells. In a rat femur defect model, CBD-SDF-1α-modified DBM scaffolds could efficiently mobilize CD34+ and c-kit+ endogenous stem cells homing to the injured site at 3 days after implantation. According to the data from micro-CT, CBD-SDF-1α-modified DBM scaffolds could help the bone defects rejoin with mineralization accumulated and bone volume expanded. Interestingly, osteoprotegerin (OPG) and osteopontin (OPN) were highly expressed in CBD-SDF-1α group at an early time after implantation, while osteocalcin (OCN) was more expanded. H&E and Masson's trichrome staining showed that the CBD-SDF-1α-modified DBM scaffold group had more osteoblasts and that the bone defect rejoined earlier. The ultimate strength of the regenerated bone was investigated by three-point bending, showing that the CBD-SDF-1α group had superior strength. In conclusion, CBD-SDF-1α-modified DBM scaffolds could promote bone regeneration by recruiting endogenous stem cells.
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Affiliation(s)
- Jiajia Shi
- Key Laboratory for Nano-Bio Interface Research, Suzhou Key Laboratory for Nanotheranostics, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences , Suzhou 215123, China
- School of Nano Technology and Nano Bionics, University of Science and Technology of China , Hefei 230026, China
| | - Jie Sun
- Key Laboratory for Nano-Bio Interface Research, Suzhou Key Laboratory for Nanotheranostics, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences , Suzhou 215123, China
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Third Military Medical University , Chongqing 400038, China
| | - Wen Zhang
- Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University , Suzhou 215007, China
| | - Hui Liang
- Key Laboratory for Nano-Bio Interface Research, Suzhou Key Laboratory for Nanotheranostics, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences , Suzhou 215123, China
| | - Qin Shi
- Orthopedic Department, First Affiliated Hospital of Soochow University , Suzhou 215006, China
| | - Xiaoran Li
- Key Laboratory for Nano-Bio Interface Research, Suzhou Key Laboratory for Nanotheranostics, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences , Suzhou 215123, China
| | - Yanyan Chen
- Key Laboratory for Nano-Bio Interface Research, Suzhou Key Laboratory for Nanotheranostics, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences , Suzhou 215123, China
| | - Yan Zhuang
- Key Laboratory for Nano-Bio Interface Research, Suzhou Key Laboratory for Nanotheranostics, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences , Suzhou 215123, China
| | - Jianwu Dai
- Key Laboratory for Nano-Bio Interface Research, Suzhou Key Laboratory for Nanotheranostics, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences , Suzhou 215123, China
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Third Military Medical University , Chongqing 400038, China
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences , Beijing 100101, China
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20
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Duan N, Geng X, Ye L, Zhang A, Feng Z, Guo L, Gu Y. A vascular tissue engineering scaffold with core-shell structured nano-fibers formed by coaxial electrospinning and its biocompatibility evaluation. ACTA ACUST UNITED AC 2016; 11:035007. [PMID: 27206161 DOI: 10.1088/1748-6041/11/3/035007] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
In this article, a tubular vascular tissue engineering scaffold with core-shell structured fibers was produced by coaxial electrospinning at an appropriate flow rate ratio between the inner and outer solution. PCL was selected as the core to provide the mechanical property and integrity to the scaffold while collagen was used as the shell to improve the attachment and proliferation of vascular cells due to its excellent biocompatibility. The fine core-shell structured fibers were demonstrated by scanning electron microscope and transmission electron microscope observations. Subsequently, the collagen shell was crosslinked by genipin and further bound with heparin. The crosslinking process was confirmed by the increasing of tensile strength, swelling ratio and thermogravimetric analysis measurements while the surface heparin content was characterized by means of a UV-spectrophotometer and activated partial thromboplastin time tests. Furthermore, the mechanical properties such as stitch strength and bursting pressure of the as-prepared scaffold were measured. Moreover, the biocompatibility of the scaffold was evaluated by cytotoxicity investigation with L929 cells via MTT assay. Endothelial cell adhesion assessments were conducted to reveal the possibility of the formation of an endothelial cell layer on the scaffold surface, while the ability of smooth muscle cell penetration into the scaffold wall was also assessed by confocal laser scanning microscopy. The as-prepared core-shell structured scaffold showed promising potential for use in vascular tissue engineering.
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Affiliation(s)
- Nannan Duan
- School of Materials Science, Beijing Institute of Technology, Beijing 100081, People's Republic of China
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21
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Liu Q, Huang J, Shao H, Song L, Zhang Y. Dual-factor loaded functional silk fibroin scaffolds for peripheral nerve regeneration with the aid of neovascularization. RSC Adv 2016. [DOI: 10.1039/c5ra22054h] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Dual-factor loaded functional silk fibroin scaffolds enhanced peripheral nerve regeneration with the aid of neovascularization.
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Affiliation(s)
- Qiangqiang Liu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- College of Materials Science and Engineering
- Donghua University
- Shanghai 201620
- P. R. China
| | - Jianwen Huang
- Department of Urology
- Shanghai Jiao Tong University Affiliated Sixth People’s Hospital
- Shanghai 200233
- P. R. China
| | - Huili Shao
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- College of Materials Science and Engineering
- Donghua University
- Shanghai 201620
- P. R. China
| | - Lujie Song
- Department of Urology
- Shanghai Jiao Tong University Affiliated Sixth People’s Hospital
- Shanghai 200233
- P. R. China
| | - Yaopeng Zhang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- College of Materials Science and Engineering
- Donghua University
- Shanghai 201620
- P. R. China
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22
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Gnavi S, Fornasari BE, Tonda-Turo C, Laurano R, Zanetti M, Ciardelli G, Geuna S. The Effect of Electrospun Gelatin Fibers Alignment on Schwann Cell and Axon Behavior and Organization in the Perspective of Artificial Nerve Design. Int J Mol Sci 2015; 16:12925-42. [PMID: 26062130 PMCID: PMC4490479 DOI: 10.3390/ijms160612925] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Revised: 05/26/2015] [Accepted: 05/29/2015] [Indexed: 01/11/2023] Open
Abstract
Electrospun fibrous substrates mimicking extracellular matrices can be prepared by electrospinning, yielding aligned fibrous matrices as internal fillers to manufacture artificial nerves. Gelatin aligned nano-fibers were prepared by electrospinning after tuning the collector rotation speed. The effect of alignment on cell adhesion and proliferation was tested in vitro using primary cultures, the Schwann cell line, RT4-D6P2T, and the sensory neuron-like cell line, 50B11. Cell adhesion and proliferation were assessed by quantifying at several time-points. Aligned nano-fibers reduced adhesion and proliferation rate compared with random fibers. Schwann cell morphology and organization were investigated by immunostaining of the cytoskeleton. Cells were elongated with their longitudinal body parallel to the aligned fibers. B5011 neuron-like cells were aligned and had parallel axon growth when cultured on the aligned gelatin fibers. The data show that the alignment of electrospun gelatin fibers can modulate Schwann cells and axon organization in vitro, suggesting that this substrate shows promise as an internal filler for the design of artificial nerves for peripheral nerve reconstruction.
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Affiliation(s)
- Sara Gnavi
- Department of Clinical and Biological Sciences, University of Torino, Orbassano 10043, Italy.
- Neuroscience Institute of the Cavalieri-Ottolenghi Foundation, University of Torino, Orbassano 10043, Italy.
| | - Benedetta Elena Fornasari
- Department of Clinical and Biological Sciences, University of Torino, Orbassano 10043, Italy.
- Neuroscience Institute of the Cavalieri-Ottolenghi Foundation, University of Torino, Orbassano 10043, Italy.
| | - Chiara Tonda-Turo
- Department of Mechanical and Aerospace Engineering, Politecnico of Torino, Torino 10100, Italy.
| | - Rossella Laurano
- Department of Mechanical and Aerospace Engineering, Politecnico of Torino, Torino 10100, Italy.
| | - Marco Zanetti
- Nanostructured Interfaces and Surfaces, Department of Chemistry, University of Torino, Torino 10100, Italy.
| | - Gianluca Ciardelli
- Department of Mechanical and Aerospace Engineering, Politecnico of Torino, Torino 10100, Italy.
- Department for Materials and Devices of the National Research Council, Institute for the Cehmical and Physical Processes (CNR-IPCF UOS), Pisa 56124, Italy.
| | - Stefano Geuna
- Department of Clinical and Biological Sciences, University of Torino, Orbassano 10043, Italy.
- Neuroscience Institute of the Cavalieri-Ottolenghi Foundation, University of Torino, Orbassano 10043, Italy.
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