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Lee S, Liang X, Kim JS, Yokota T, Fukuda K, Someya T. Permeable Bioelectronics toward Biointegrated Systems. Chem Rev 2024; 124:6543-6591. [PMID: 38728658 DOI: 10.1021/acs.chemrev.3c00823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2024]
Abstract
Bioelectronics integrates electronics with biological organs, sustaining the natural functions of the organs. Organs dynamically interact with the external environment, managing internal equilibrium and responding to external stimuli. These interactions are crucial for maintaining homeostasis. Additionally, biological organs possess a soft and stretchable nature; encountering objects with differing properties can disrupt their function. Therefore, when electronic devices come into contact with biological objects, the permeability of these devices, enabling interactions and substance exchanges with the external environment, and the mechanical compliance are crucial for maintaining the inherent functionality of biological organs. This review discusses recent advancements in soft and permeable bioelectronics, emphasizing materials, structures, and a wide range of applications. The review also addresses current challenges and potential solutions, providing insights into the integration of electronics with biological organs.
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Affiliation(s)
- Sunghoon Lee
- Thin-Film Device Laboratory & Center for Emergent Matter Science (CEMS), RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Xiaoping Liang
- Electrical and Electronic Engineering and Information Systems, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Joo Sung Kim
- Thin-Film Device Laboratory & Center for Emergent Matter Science (CEMS), RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Tomoyuki Yokota
- Electrical and Electronic Engineering and Information Systems, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Kenjiro Fukuda
- Thin-Film Device Laboratory & Center for Emergent Matter Science (CEMS), RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Takao Someya
- Thin-Film Device Laboratory & Center for Emergent Matter Science (CEMS), RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Electrical and Electronic Engineering and Information Systems, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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2
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Etayo-Escanilla M, Campillo N, Ávila-Fernández P, Baena JM, Chato-Astrain J, Campos F, Sánchez-Porras D, García-García ÓD, Carriel V. Comparison of Printable Biomaterials for Use in Neural Tissue Engineering: An In Vitro Characterization and In Vivo Biocompatibility Assessment. Polymers (Basel) 2024; 16:1426. [PMID: 38794619 PMCID: PMC11125121 DOI: 10.3390/polym16101426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 05/02/2024] [Accepted: 05/13/2024] [Indexed: 05/26/2024] Open
Abstract
Nervous system traumatic injuries are prevalent in our society, with a significant socioeconomic impact. Due to the highly complex structure of the neural tissue, the treatment of these injuries is still a challenge. Recently, 3D printing has emerged as a promising alternative for producing biomimetic scaffolds, which can lead to the restoration of neural tissue function. The objective of this work was to compare different biomaterials for generating 3D-printed scaffolds for use in neural tissue engineering. For this purpose, four thermoplastic biomaterials, ((polylactic acid) (PLA), polycaprolactone (PCL), Filaflex (FF) (assessed here for the first time for biomedical purposes), and Flexdym (FD)) and gelatin methacrylate (GelMA) hydrogel were subjected to printability and mechanical tests, in vitro cell-biomaterial interaction analyses, and in vivo biocompatibility assessment. The thermoplastics showed superior printing results in terms of resolution and shape fidelity, whereas FD and GelMA revealed great viscoelastic properties. GelMA demonstrated a greater cell viability index after 7 days of in vitro cell culture. Moreover, all groups displayed connective tissue encapsulation, with some inflammatory cells around the scaffolds after 10 days of in vivo implantation. Future studies will determine the usefulness and in vivo therapeutic efficacy of novel neural substitutes based on the use of these 3D-printed scaffolds.
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Affiliation(s)
- Miguel Etayo-Escanilla
- Department of Histology, Tissue Engineering Group, University of Granada, 18016 Granada, Spain; (M.E.-E.); (P.Á.-F.); (F.C.); (V.C.)
- Instituto de Investigación Biosanitaria ibs.GRANADA, 18012 Granada, Spain
- Doctoral Program in Biomedicine, University of Granada, 18012 Granada, Spain
| | - Noelia Campillo
- REGEMAT 3D, Avenida Del Conocimiento 41, A-111, 18016 Granada, Spain (J.M.B.)
- BRECA Health Care S.L., Avenida Del Conocimiento 41, 18016 Granada, Spain
| | - Paula Ávila-Fernández
- Department of Histology, Tissue Engineering Group, University of Granada, 18016 Granada, Spain; (M.E.-E.); (P.Á.-F.); (F.C.); (V.C.)
- Instituto de Investigación Biosanitaria ibs.GRANADA, 18012 Granada, Spain
| | - José Manuel Baena
- REGEMAT 3D, Avenida Del Conocimiento 41, A-111, 18016 Granada, Spain (J.M.B.)
- BRECA Health Care S.L., Avenida Del Conocimiento 41, 18016 Granada, Spain
| | - Jesús Chato-Astrain
- Department of Histology, Tissue Engineering Group, University of Granada, 18016 Granada, Spain; (M.E.-E.); (P.Á.-F.); (F.C.); (V.C.)
- Instituto de Investigación Biosanitaria ibs.GRANADA, 18012 Granada, Spain
| | - Fernando Campos
- Department of Histology, Tissue Engineering Group, University of Granada, 18016 Granada, Spain; (M.E.-E.); (P.Á.-F.); (F.C.); (V.C.)
- Instituto de Investigación Biosanitaria ibs.GRANADA, 18012 Granada, Spain
| | - David Sánchez-Porras
- Department of Histology, Tissue Engineering Group, University of Granada, 18016 Granada, Spain; (M.E.-E.); (P.Á.-F.); (F.C.); (V.C.)
- Instituto de Investigación Biosanitaria ibs.GRANADA, 18012 Granada, Spain
| | - Óscar Darío García-García
- Department of Histology, Tissue Engineering Group, University of Granada, 18016 Granada, Spain; (M.E.-E.); (P.Á.-F.); (F.C.); (V.C.)
- Instituto de Investigación Biosanitaria ibs.GRANADA, 18012 Granada, Spain
| | - Víctor Carriel
- Department of Histology, Tissue Engineering Group, University of Granada, 18016 Granada, Spain; (M.E.-E.); (P.Á.-F.); (F.C.); (V.C.)
- Instituto de Investigación Biosanitaria ibs.GRANADA, 18012 Granada, Spain
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Berasain J, Ávila-Fernández P, Cárdenas-Pérez R, Cànaves-Llabrés AI, Etayo-Escanilla M, Alaminos M, Carriel V, García-García ÓD, Chato-Astrain J, Campos F. Genipin crosslinking promotes biomechanical reinforcement and pro-regenerative macrophage polarization in bioartificial tubular substitutes. Biomed Pharmacother 2024; 174:116449. [PMID: 38518607 DOI: 10.1016/j.biopha.2024.116449] [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: 01/09/2024] [Revised: 03/07/2024] [Accepted: 03/15/2024] [Indexed: 03/24/2024] Open
Abstract
Traumatic nerve injuries are nowadays a significant clinical challenge and new substitutes with adequate biological and mechanical properties are in need. In this context, fibrin-agarose hydrogels (FA) have shown the possibility to generate tubular scaffolds with promising results for nerve repair. However, to be clinically viable, these scaffolds need to possess enhanced mechanical properties. In this line, genipin (GP) crosslinking has demonstrated to improve biomechanical properties with good biological properties compared to other crosslinkers. In this study, we evaluated the impact of different GP concentrations (0.05, 0.1 and 0.2% (m/v)) and reaction times (6, 12, 24, 72 h) on bioartificial nerve substitutes (BNS) consisting of nanostructured FA scaffolds. First, crosslinked BNS were studied histologically, ultrastructurally and biomechanically and then, its biocompatibility and immunomodulatory effects were ex vivo assessed with a macrophage cell line. Results showed that GP was able to improve the biomechanical resistance of BNS, which were dependent on both the GP treatment time and concentration without altering the structure. Moreover, biocompatibility analyses on macrophages confirmed high cell viability and a minimal reduction of their metabolic activity by WST-1. In addition, GP-crosslinked BNS effectively directed macrophage polarization from a pro-inflammatory (M1) towards a pro-regenerative (M2) phenotype, which was in line with the cytokines release profile. In conclusion, this study considers time and dose-dependent effects of GP in FA substitutes which exhibited increased biomechanical properties while reducing immunogenicity and promoting pro-regenerative macrophage shift. These tubular substitutes could be useful for nerve application or even other tissue engineering applications such as urethra.
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Affiliation(s)
- Jone Berasain
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, Spain; Postgraduate Master Program in Tissue Engineering and Advanced Therapies, University of Granada, Spain
| | - Paula Ávila-Fernández
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, Spain; Instituto de Investigación Biosanitaria ibs.GRANADA, Spain
| | - Rocío Cárdenas-Pérez
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, Spain; Postgraduate Master Program in Tissue Engineering and Advanced Therapies, University of Granada, Spain
| | - Antoni Ignasi Cànaves-Llabrés
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, Spain; Postgraduate Master Program in Tissue Engineering and Advanced Therapies, University of Granada, Spain
| | - Miguel Etayo-Escanilla
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, Spain; Instituto de Investigación Biosanitaria ibs.GRANADA, Spain
| | - Miguel Alaminos
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, Spain; Instituto de Investigación Biosanitaria ibs.GRANADA, Spain
| | - Víctor Carriel
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, Spain; Instituto de Investigación Biosanitaria ibs.GRANADA, Spain
| | - Óscar Darío García-García
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, Spain; Instituto de Investigación Biosanitaria ibs.GRANADA, Spain.
| | - Jesús Chato-Astrain
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, Spain; Instituto de Investigación Biosanitaria ibs.GRANADA, Spain.
| | - Fernando Campos
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, Spain; Instituto de Investigación Biosanitaria ibs.GRANADA, Spain
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Redolfi Riva E, Özkan M, Contreras E, Pawar S, Zinno C, Escarda-Castro E, Kim J, Wieringa P, Stellacci F, Micera S, Navarro X. Beyond the limiting gap length: peripheral nerve regeneration through implantable nerve guidance conduits. Biomater Sci 2024; 12:1371-1404. [PMID: 38363090 DOI: 10.1039/d3bm01163a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2024]
Abstract
Peripheral nerve damage results in the loss of sensorimotor and autonomic functions, which is a significant burden to patients. Furthermore, nerve injuries greater than the limiting gap length require surgical repair. Although autografts are the preferred clinical choice, their usage is impeded by their limited availability, dimensional mismatch, and the sacrifice of another functional donor nerve. Accordingly, nerve guidance conduits, which are tubular scaffolds engineered to provide a biomimetic environment for nerve regeneration, have emerged as alternatives to autografts. Consequently, a few nerve guidance conduits have received clinical approval for the repair of short-mid nerve gaps but failed to regenerate limiting gap damage, which represents the bottleneck of this technology. Thus, it is still necessary to optimize the morphology and constituent materials of conduits. This review summarizes the recent advances in nerve conduit technology. Several manufacturing techniques and conduit designs are discussed, with emphasis on the structural improvement of simple hollow tubes, additive manufacturing techniques, and decellularized grafts. The main objective of this review is to provide a critical overview of nerve guidance conduit technology to support regeneration in long nerve defects, promote future developments, and speed up its clinical translation as a reliable alternative to autografts.
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Affiliation(s)
- Eugenio Redolfi Riva
- The Biorobotic Institute, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56127 Pisa, Italy.
- Department of Excellence in Robotics & AI, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56127 Pisa, Italy
| | - Melis Özkan
- Institute of Materials, école Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
- Bertarelli Foundation Chair in Translational Neural Engineering, Center for Neuroprosthetics and Institute of Bioengineering, école Polytechnique Federale de Lausanne, Lausanne, Switzerland
| | - Estefania Contreras
- Integral Service for Laboratory Animals (SIAL), Faculty of Veterinary, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
- Department of Cell Biology, Physiology and Immunology, Institute of Neurosciences, Universitat Autònoma de Barcelona (UAB), 08193 Bellaterra, Spain.
| | - Sujeet Pawar
- Institute of Materials, école Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Ciro Zinno
- The Biorobotic Institute, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56127 Pisa, Italy.
- Department of Excellence in Robotics & AI, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56127 Pisa, Italy
| | - Enrique Escarda-Castro
- Complex Tissue Regeneration Department, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Maastricht, The Netherlands
| | - Jaehyeon Kim
- Complex Tissue Regeneration Department, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Maastricht, The Netherlands
| | - Paul Wieringa
- Complex Tissue Regeneration Department, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Maastricht, The Netherlands
| | - Francesco Stellacci
- Institute of Materials, école Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
- Institute of Materials, Department of Bioengineering and Global Health Institute, École Polytechnique Fédérale de Lausanne (EPFL), Station 12, CH-1015 Lausanne, Switzerland
| | - Silvestro Micera
- The Biorobotic Institute, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56127 Pisa, Italy.
- Department of Excellence in Robotics & AI, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56127 Pisa, Italy
- Bertarelli Foundation Chair in Translational Neural Engineering, Center for Neuroprosthetics and Institute of Bioengineering, école Polytechnique Federale de Lausanne, Lausanne, Switzerland
| | - Xavier Navarro
- Department of Cell Biology, Physiology and Immunology, Institute of Neurosciences, Universitat Autònoma de Barcelona (UAB), 08193 Bellaterra, Spain.
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), 28031 Madrid, Spain
- Institute Guttmann Foundation, Hospital of Neurorehabilitation, Badalona, Spain
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5
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Aliakbarshirazi S, Ghobeira R, Asadian M, Narimisa M, Nikiforov A, De Baere I, Van Paepegem W, De Geyter N, Declercq H, Morent R. Advanced Hollow Cathode Discharge Plasma Treatment of Unique Bilayered Fibrous Nerve Guidance Conduits for Enhanced/Oriented Neurite Outgrowth. Biomacromolecules 2024; 25:1448-1467. [PMID: 38412382 DOI: 10.1021/acs.biomac.3c00976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Abstract
Despite all recent progresses in nerve tissue engineering, critical-sized nerve defects are still extremely challenging to repair. Therefore, this study targets the bridging of critical nerve defects and promoting an oriented neuronal outgrowth by engineering innovative nerve guidance conduits (NGCs) synergistically possessing exclusive topographical, chemical, and mechanical cues. To do so, a mechanically adequate mixture of polycaprolactone (PCL) and polylactic-co-glycolic acid (PLGA) was first carefully selected as base material to electrospin nanofibrous NGCs simulating the extracellular matrix. The electrospinning process was performed using a newly designed 2-pole air gap collector that leads to a one-step deposition of seamless NGCs having a bilayered architecture with an inner wall composed of highly aligned fibers and an outer wall consisting of randomly oriented fibers. This architecture is envisaged to afford guidance cues for the extension of long neurites on the underlying inner fiber alignment and to concurrently provide a sufficient nutrient supply through the pores of the outer random fibers. The surface chemistry of the NGCs was then modified making use of a hollow cathode discharge (HCD) plasma reactor purposely designed to allow an effective penetration of the reactive species into the NGCs to eventually treat their inner wall. X-ray photoelectron spectroscopy (XPS) results have indeed revealed a successful O2 plasma modification of the inner wall that exhibited a significantly increased oxygen content (24 → 28%), which led to an enhanced surface wettability. The treatment increased the surface nanoroughness of the fibers forming the NGCs as a result of an etching effect. This effect reduced the ultimate tensile strength of the NGCs while preserving their high flexibility. Finally, pheochromocytoma (PC12) cells were cultured on the NGCs to monitor their ability to extend neurites which is the base of a good nerve regeneration. In addition to remarkably improved cell adhesion and proliferation on the plasma-treated NGCs, an outstanding neural differentiation occurred. In fact, PC12 cells seeded on the treated samples extended numerous long neurites eventually establishing a neural network-like morphology with an overall neurite direction following the alignment of the underlying fibers. Overall, PCL/PLGA NGCs electrospun using the 2-pole air gap collector and O2 plasma-treated using an HCD reactor are promising candidates toward a full repair of critical nerve damage.
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Affiliation(s)
- Sheida Aliakbarshirazi
- Research Unit Plasma Technology (RUPT), Department of Applied Physics, Faculty of Engineering and Architecture, Ghent University, Sint-Pietersnieuwstraat 41 B4, 9000 Ghent, Belgium
| | - Rouba Ghobeira
- Research Unit Plasma Technology (RUPT), Department of Applied Physics, Faculty of Engineering and Architecture, Ghent University, Sint-Pietersnieuwstraat 41 B4, 9000 Ghent, Belgium
| | - Mahtab Asadian
- Research Unit Plasma Technology (RUPT), Department of Applied Physics, Faculty of Engineering and Architecture, Ghent University, Sint-Pietersnieuwstraat 41 B4, 9000 Ghent, Belgium
| | - Mehrnoush Narimisa
- Research Unit Plasma Technology (RUPT), Department of Applied Physics, Faculty of Engineering and Architecture, Ghent University, Sint-Pietersnieuwstraat 41 B4, 9000 Ghent, Belgium
| | - Anton Nikiforov
- Research Unit Plasma Technology (RUPT), Department of Applied Physics, Faculty of Engineering and Architecture, Ghent University, Sint-Pietersnieuwstraat 41 B4, 9000 Ghent, Belgium
| | - Ives De Baere
- Mechanics of Materials and Structures (MMS), Department of Materials, Textiles and Chemical Engineering, Faculty of Engineering and Architecture, Ghent University, Technologiepark-Zwijnaarde 903, 9052 Zwijnaarde, Belgium
| | - Wim Van Paepegem
- Mechanics of Materials and Structures (MMS), Department of Materials, Textiles and Chemical Engineering, Faculty of Engineering and Architecture, Ghent University, Technologiepark-Zwijnaarde 903, 9052 Zwijnaarde, Belgium
| | - Nathalie De Geyter
- Research Unit Plasma Technology (RUPT), Department of Applied Physics, Faculty of Engineering and Architecture, Ghent University, Sint-Pietersnieuwstraat 41 B4, 9000 Ghent, Belgium
| | - Heidi Declercq
- Tissue Engineering Lab, Department of Development and Regeneration, Faculty of Medicine, KU Leuven Campus Kulak, Etienne Sabbelaan 53, 8500 Kortrijk, Belgium
| | - Rino Morent
- Research Unit Plasma Technology (RUPT), Department of Applied Physics, Faculty of Engineering and Architecture, Ghent University, Sint-Pietersnieuwstraat 41 B4, 9000 Ghent, Belgium
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García-García ÓD, Carriel V, Chato-Astrain J. Myelin histology: a key tool in nervous system research. Neural Regen Res 2024; 19:277-281. [PMID: 37488878 PMCID: PMC10503616 DOI: 10.4103/1673-5374.375318] [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: 02/13/2023] [Revised: 03/15/2023] [Accepted: 04/01/2023] [Indexed: 07/26/2023] Open
Abstract
The myelin sheath is a lipoprotein-rich, multilayered structure capable of increasing conduction velocity in central and peripheral myelinated nerve fibers. Due to the complex structure and composition of myelin, various histological techniques have been developed over the centuries to evaluate myelin under normal, pathological or experimental conditions. Today, methods to assess myelin integrity or content are key tools in both clinical diagnosis and neuroscience research. In this review, we provide an updated summary of the composition and structure of the myelin sheath and discuss some histological procedures, from tissue fixation and processing techniques to the most used and practical myelin histological staining methods. Considering the lipoprotein nature of myelin, the main features and technical details of the different available methods that can be used to evaluate the lipid or protein components of myelin are described, as well as the precise ultrastructural techniques.
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Affiliation(s)
- Óscar Darío García-García
- Department of Histology, Tissue Engineering Group, University of Granada & Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
| | - Víctor Carriel
- Department of Histology, Tissue Engineering Group, University of Granada & Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
| | - Jesús Chato-Astrain
- Department of Histology, Tissue Engineering Group, University of Granada & Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
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Olguín Y, Selva M, Benavente D, Orellana N, Montenegro I, Madrid A, Jaramillo-Pinto D, Otero MC, Corrales TP, Acevedo CA. Effect of Electrical Stimulation on PC12 Cells Cultured in Different Hydrogels: Basis for the Development of Biomaterials in Peripheral Nerve Tissue Engineering. Pharmaceutics 2023; 15:2760. [PMID: 38140099 PMCID: PMC10747664 DOI: 10.3390/pharmaceutics15122760] [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: 10/18/2023] [Revised: 11/26/2023] [Accepted: 12/02/2023] [Indexed: 12/24/2023] Open
Abstract
Extensive damage to peripheral nerves is a health problem with few therapeutic alternatives. In this context, the development of tissue engineering seeks to obtain materials that can help recreate environments conducive to cellular development and functional repair of peripheral nerves. Different hydrogels have been studied and presented as alternatives for future treatments to emulate the morphological characteristics of nerves. Along with this, other research proposes the need to incorporate electrical stimuli into treatments as agents that promote cell growth and differentiation; however, no precedent correlates the simultaneous effects of the types of hydrogel and electrical stimuli. This research evaluates the neural differentiation of PC12 cells, relating the effect of collagen, alginate, GelMA, and PEGDA hydrogels with electrical stimulation modulated in four different ways. Our results show significant correlations for different cultivation conditions. Electrical stimuli significantly increase neural differentiation for specific experimental conditions dependent on electrical frequency, not voltage. These backgrounds allow new material treatment schemes to be formulated through electrical stimulation in peripheral nerve tissue engineering.
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Affiliation(s)
- Yusser Olguín
- Departamento de Química y Medio Ambiente, Universidad Técnica Federico Santa María, Avenida España 1680, Valparaíso 2390123, Chile
- Centro Científico y Tecnológico de Valparaíso (CCTVal), Universidad Técnica Federico Santa María, Avenida España 1680, Valparaíso 2390123, Chile; (D.B.); (C.A.A.)
- Centro de Biotecnología, Universidad Técnica Federico Santa María, Avenida España 1680, Valparaíso 2390123, Chile; (M.S.); (N.O.); (T.P.C.)
| | - Mónica Selva
- Centro de Biotecnología, Universidad Técnica Federico Santa María, Avenida España 1680, Valparaíso 2390123, Chile; (M.S.); (N.O.); (T.P.C.)
| | - Diego Benavente
- Centro Científico y Tecnológico de Valparaíso (CCTVal), Universidad Técnica Federico Santa María, Avenida España 1680, Valparaíso 2390123, Chile; (D.B.); (C.A.A.)
| | - Nicole Orellana
- Centro de Biotecnología, Universidad Técnica Federico Santa María, Avenida España 1680, Valparaíso 2390123, Chile; (M.S.); (N.O.); (T.P.C.)
| | - Ivan Montenegro
- Centro de Investigaciones Biomédicas, Escuela de Obstetricia, Facultad de Medicina, Universidad de Valparaíso, Angamos 655, Reñaca, Viña del Mar 2520000, Chile;
| | - Alejandro Madrid
- Laboratorio de Productos Naturales y Síntesis Orgánica (LPNSO), Departamento de Ciencias y Geografía, Facultad de Ciencias Naturales y Exactas, Universidad de Playa Ancha, Avda. Leopoldo Carvallo 270, Playa Ancha, Valparaíso 2390123, Chile;
| | - Diego Jaramillo-Pinto
- Departamento de Física, Universidad Técnica Federico Santa María, Avenida España 1680, Valparaíso 2390123, Chile;
- Millenium Nucleus in NanoBioPhysics (NNBP), Universidad Técnica Federico Santa María, Valparaíso 2390123, Chile
| | - María Carolina Otero
- Escuela de Química y Farmacia, Facultad de Medicina, Universidad Andres Bello, Republica 252, Santiago 8370071, Chile;
| | - Tomas P. Corrales
- Centro de Biotecnología, Universidad Técnica Federico Santa María, Avenida España 1680, Valparaíso 2390123, Chile; (M.S.); (N.O.); (T.P.C.)
- Departamento de Física, Universidad Técnica Federico Santa María, Avenida España 1680, Valparaíso 2390123, Chile;
- Millenium Nucleus in NanoBioPhysics (NNBP), Universidad Técnica Federico Santa María, Valparaíso 2390123, Chile
| | - Cristian A. Acevedo
- Centro Científico y Tecnológico de Valparaíso (CCTVal), Universidad Técnica Federico Santa María, Avenida España 1680, Valparaíso 2390123, Chile; (D.B.); (C.A.A.)
- Centro de Biotecnología, Universidad Técnica Federico Santa María, Avenida España 1680, Valparaíso 2390123, Chile; (M.S.); (N.O.); (T.P.C.)
- Departamento de Física, Universidad Técnica Federico Santa María, Avenida España 1680, Valparaíso 2390123, Chile;
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Hasanzadeh E, Seifalian A, Mellati A, Saremi J, Asadpour S, Enderami SE, Nekounam H, Mahmoodi N. Injectable hydrogels in central nervous system: Unique and novel platforms for promoting extracellular matrix remodeling and tissue engineering. Mater Today Bio 2023; 20:100614. [PMID: 37008830 PMCID: PMC10050787 DOI: 10.1016/j.mtbio.2023.100614] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 02/23/2023] [Accepted: 03/16/2023] [Indexed: 04/04/2023] Open
Abstract
Repairing central nervous system (CNS) is difficult due to the inability of neurons to recover after damage. A clinically acceptable treatment to promote CNS functional recovery and regeneration is currently unavailable. According to recent studies, injectable hydrogels as biodegradable scaffolds for CNS tissue engineering and regeneration have exceptionally desirable attributes. Hydrogel has a biomimetic structure similar to extracellular matrix, hence has been considered a 3D scaffold for CNS regeneration. An interesting new type of hydrogel, injectable hydrogels, can be injected into target areas with little invasiveness and imitate several aspects of CNS. Injectable hydrogels are being researched as therapeutic agents because they may imitate numerous properties of CNS tissues and hence reduce subsequent injury and regenerate neural tissue. Because of their less adverse effects and cost, easier use and implantation with less pain, and faster regeneration capacity, injectable hydrogels, are more desirable than non-injectable hydrogels. This article discusses the pathophysiology of CNS and the use of several kinds of injectable hydrogels for brain and spinal cord tissue engineering, paying particular emphasis to recent experimental studies.
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Affiliation(s)
- Elham Hasanzadeh
- Immunogenetics Research Center, Department of Tissue Engineering & Regenerative Medicine, School of Advanced Technologies in Medicine, Mazandaran University of Medical Sciences, Sari, Iran
- Corresponding author. School of Advanced Technologies in Medicine, Mazandaran University of Medical Sciences, Valie-Asr Boulevard, Sari, Mazandaran, Iran.
| | - Alexander Seifalian
- Nanotechnology & Regenerative Medicine Commercialisation Centre (NanoRegMed Ltd, Nanoloom Ltd, & Liberum Health Ltd), London BioScience Innovation Centre, 2 Royal College Street, London, UK
| | - Amir Mellati
- Department of Tissue Engineering & Regenerative Medicine, School of Advanced Technologies in Medicine, Mazandaran University of Medical Sciences, Sari, Iran
- Molecular and Cell Biology Research Center, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Jamileh Saremi
- Research Center for Noncommunicable Diseases, Jahrom University of Medical Sciences, Jahrom, Iran
| | - Shiva Asadpour
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Seyed Ehsan Enderami
- Immunogenetics Research Center, Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Houra Nekounam
- Department of Medical Nanotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Narges Mahmoodi
- Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran
- Corresponding author. Sina Trauma and Surgery Research Center, Sina Hospital, Tehran University of Medical Sciences, Hasan-Abad Square, Imam Khomeini Ave., Tehran, 11365-3876, Iran.
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9
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García-García ÓD, El Soury M, Campos F, Sánchez-Porras D, Geuna S, Alaminos M, Gambarotta G, Chato-Astrain J, Raimondo S, Carriel V. Comprehensive ex vivo and in vivo preclinical evaluation of novel chemo enzymatic decellularized peripheral nerve allografts. Front Bioeng Biotechnol 2023; 11:1162684. [PMID: 37082209 PMCID: PMC10111265 DOI: 10.3389/fbioe.2023.1162684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 03/22/2023] [Indexed: 04/07/2023] Open
Abstract
As a reliable alternative to autografts, decellularized peripheral nerve allografts (DPNAs) should mimic the complex microstructure of native nerves and be immunogenically compatible. Nevertheless, there is a current lack of decellularization methods able to remove peripheral nerve cells without significantly altering the nerve extracellular matrix (ECM). The aims of this study are firstly to characterize ex vivo, in a histological, biochemical, biomechanical and ultrastructural way, three novel chemical-enzymatic decellularization protocols (P1, P2 and P3) in rat sciatic nerves and compared with the Sondell classic decellularization method and then, to select the most promising DPNAs to be tested in vivo. All the DPNAs generated present an efficient removal of the cellular material and myelin, while preserving the laminin and collagen network of the ECM (except P3) and were free from any significant alterations in the biomechanical parameters and biocompatibility properties. Then, P1 and P2 were selected to evaluate their regenerative effectivity and were compared with Sondell and autograft techniques in an in vivo model of sciatic defect with a 10-mm gap, after 15 weeks of follow-up. All study groups showed a partial motor and sensory recovery that were in correlation with the histological, histomorphometrical and ultrastructural analyses of nerve regeneration, being P2 the protocol showing the most similar results to the autograft control group.
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Affiliation(s)
- Óscar Darío García-García
- Tissue Engineering Group, Department of Histology, University of Granada and Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
- Doctoral Program in Biomedicine, University of Granada, Granada, Spain
- Department of Clinical and Biological Sciences and Neuroscience Institute Cavalieri Ottolenghi (NICO), University of Torino, Orbassano, Italy
| | - Marwa El Soury
- Tissue Engineering Group, Department of Histology, University of Granada and Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
- Department of Clinical and Biological Sciences and Neuroscience Institute Cavalieri Ottolenghi (NICO), University of Torino, Orbassano, Italy
| | - Fernando Campos
- Tissue Engineering Group, Department of Histology, University of Granada and Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
| | - David Sánchez-Porras
- Tissue Engineering Group, Department of Histology, University of Granada and Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
| | - Stefano Geuna
- Department of Clinical and Biological Sciences and Neuroscience Institute Cavalieri Ottolenghi (NICO), University of Torino, Orbassano, Italy
| | - Miguel Alaminos
- Tissue Engineering Group, Department of Histology, University of Granada and Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
| | - Giovanna Gambarotta
- Department of Clinical and Biological Sciences and Neuroscience Institute Cavalieri Ottolenghi (NICO), University of Torino, Orbassano, Italy
| | - Jesús Chato-Astrain
- Tissue Engineering Group, Department of Histology, University of Granada and Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
- *Correspondence: Jesús Chato-Astrain, ; Víctor Carriel,
| | - Stefania Raimondo
- Department of Clinical and Biological Sciences and Neuroscience Institute Cavalieri Ottolenghi (NICO), University of Torino, Orbassano, Italy
| | - Víctor Carriel
- Tissue Engineering Group, Department of Histology, University of Granada and Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
- *Correspondence: Jesús Chato-Astrain, ; Víctor Carriel,
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10
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Sánchez-Porras D, Durand-Herrera D, Carmona R, Blanco-Elices C, Garzón I, Pozzobon M, San Martín S, Alaminos M, García-García ÓD, Chato-Astrain J, Carriel V. Expression of Basement Membrane Molecules by Wharton Jelly Stem Cells (WJSC) in Full-Term Human Umbilical Cords, Cell Cultures and Microtissues. Cells 2023; 12:cells12040629. [PMID: 36831296 PMCID: PMC9954414 DOI: 10.3390/cells12040629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 02/06/2023] [Accepted: 02/08/2023] [Indexed: 02/17/2023] Open
Abstract
Wharton's jelly stem cells (WJSC) from the human umbilical cord (UC) are one of the most promising mesenchymal stem cells (MSC) in tissue engineering (TE) and advanced therapies. The cell niche is a key element for both, MSC and fully differentiated tissues, to preserve their unique features. The basement membrane (BM) is an essential structure during embryonic development and in adult tissues. Epithelial BMs are well-known, but similar structures are present in other histological structures, such as in peripheral nerve fibers, myocytes or chondrocytes. Previous studies suggest the expression of some BM molecules within the Wharton's Jelly (WJ) of UC, but the distribution pattern and full expression profile of these molecules have not been yet elucidated. In this sense, the aim of this histological study was to evaluate the expression of main BM molecules within the WJ, cultured WJSC and during WJSC microtissue (WJSC-MT) formation process. Results confirmed the presence of a pericellular matrix composed by the main BM molecules-collagens (IV, VII), HSPG2, agrin, laminin and nidogen-around the WJSC within UC. Additionally, ex vivo studies demonstrated the synthesis of these BM molecules, except agrin, especially during WJSC-MT formation process. The WJSC capability to synthesize main BM molecules could offer new alternatives for the generation of biomimetic-engineered substitutes where these molecules are particularly needed.
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Affiliation(s)
- David Sánchez-Porras
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, Universidad de Granada, 18016 Granada, Spain
- Instituto de Investigación Biosanitaria ibs.GRANADA, 18012 Granada, Spain
- Doctoral Program in Biomedicine, Doctoral School, Universidad de Granada, 18016 Granada, Spain
| | - Daniel Durand-Herrera
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, Universidad de Granada, 18016 Granada, Spain
- Facultad de Odontología, Universidad Michoacana de San Nicolás de Hidalgo (UMSNH), Morelia 58010, Mexico
| | - Ramón Carmona
- Department of Cell Biology, Faculty of Sciences, Universidad de Granada, 18071 Granada, Spain
| | - Cristina Blanco-Elices
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, Universidad de Granada, 18016 Granada, Spain
- Instituto de Investigación Biosanitaria ibs.GRANADA, 18012 Granada, Spain
| | - Ingrid Garzón
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, Universidad de Granada, 18016 Granada, Spain
- Instituto de Investigación Biosanitaria ibs.GRANADA, 18012 Granada, Spain
| | - Michela Pozzobon
- Department of Women and Children’s Health, University of Padova, 35129 Padova, Italy
- Corso Stati Uniti 4, Institute of Pediatric Research Città della Speranza, 35127 Padova, Italy
| | - Sebastián San Martín
- Centro de Investigaciones Biomédicas, Escuela de Medicina, Facultad de Medicina, Universidad de Valparaíso, Valparaíso 2520000, Chile
| | - Miguel Alaminos
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, Universidad de Granada, 18016 Granada, Spain
- Instituto de Investigación Biosanitaria ibs.GRANADA, 18012 Granada, Spain
| | - Óscar Darío García-García
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, Universidad de Granada, 18016 Granada, Spain
- Instituto de Investigación Biosanitaria ibs.GRANADA, 18012 Granada, Spain
- Correspondence: (Ó.D.G.-G.); (J.C.-A.)
| | - Jesús Chato-Astrain
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, Universidad de Granada, 18016 Granada, Spain
- Instituto de Investigación Biosanitaria ibs.GRANADA, 18012 Granada, Spain
- Correspondence: (Ó.D.G.-G.); (J.C.-A.)
| | - Víctor Carriel
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, Universidad de Granada, 18016 Granada, Spain
- Instituto de Investigación Biosanitaria ibs.GRANADA, 18012 Granada, Spain
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11
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García-García ÓD, Weiss T, Chato-Astrain J, Raimondo S, Carriel V. Staining Methods for Normal and Regenerative Myelin in the Nervous System. Methods Mol Biol 2023; 2566:187-203. [PMID: 36152252 DOI: 10.1007/978-1-0716-2675-7_15] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Histochemical and fluorescence-based techniques enable the specific identification of myelin by bright-field or fluorescence microscopy. In this chapter, we describe four histological methods for the evaluation of myelin on peripheral nerve tissue sections. The first method combines the Luxol fast blue (LFB) technique with a modified Picrosirius staining contrasted with Harris hematoxylin, called MCOLL. This method simultaneously stains myelin, collagen fibers, and cell nuclei, thus giving an integrated overview of the histology, collagen network, and myelin content of the tissue in paraffin-embedded or cryosectioned samples. Secondly, we describe the osmium tetroxide method, which provides a permanent positive reaction for myelin as well as other lipids present in the tissue. The third method is the immunofluorescence-based detection of myelin proteins that allows to combine information about their expression status with other proteins of interest. Finally, the FluoroMyelin™ stains enable a fast detection of the myelin content that can be easily implemented in immunofluorescence staining panels for cryosectioned tissues. Together, this chapter provides a variety of methods to accurately identify myelin in different experimental approaches.
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Affiliation(s)
- Óscar D García-García
- Department of Histology (Tissue Engineering Group), Faculty of Medicine, University of Granada, Granada, Spain
- Instituto de Investigación Biosanitaria, Ibs.GRANADA, Granada, Spain
| | - Tamara Weiss
- Department of Plastic, Reconstructive and Aesthetic Surgery, Medical University of Vienna, Vienna, Austria
| | - Jesús Chato-Astrain
- Department of Histology (Tissue Engineering Group), Faculty of Medicine, University of Granada, Granada, Spain
- Instituto de Investigación Biosanitaria, Ibs.GRANADA, Granada, Spain
| | - Stefania Raimondo
- Dipartimento di Scienze Cliniche e Biologiche, Università di Torino, Torino, Italy
- Neuroscience Institute Cavalieri Ottolenghi (NICO), Torino, Italy
| | - Víctor Carriel
- Department of Histology (Tissue Engineering Group), Faculty of Medicine, University of Granada, Granada, Spain.
- Instituto de Investigación Biosanitaria, Ibs.GRANADA, Granada, Spain.
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12
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Zhao W, Yang J, Kang Y, Hu K, Jiao M, Zhao B, Jiang Y, Liu C, Ding F, Yuan B, Ma B, Zhang K, Mikos AG, Zhang X. Animal Models of Rotator Cuff Injury and Repair: A Systematic Review. TISSUE ENGINEERING. PART B, REVIEWS 2022; 28:1258-1273. [PMID: 35972750 DOI: 10.1089/ten.teb.2022.0034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
There are a large number of animal studies on rotator cuff injury and repair, but a lack of detailed research and evaluation on the animal models. This systematic review aims to provide a framework for animal studies and repair patches for rotator cuff injury. Four hundred nine animal studies were included, of which the most common animal model of rotator cuff injury is rat (53.56%), the most common site of rotator cuff injury is the supraspinatus tendon (62.10%), and the most common injury type (degree) is acute tear (full thickness) (48.41%). The most common research purpose is to evaluate the repair effect of the patch (24.94%), followed by the observation of pathophysiological changes after rotator cuff injury (20.87%). Among the five types of repair patch materials including nondegradable and degradable synthetic materials, autologous and allogeneic tissues, and naturally derived biomaterial, the last one is the mostly used (52.74%). For different animal models, the rodent models (rat and mouse) are the most commonly used and probably the most suitable species for preliminary studies of rotator cuff injury; the rabbit, canine, sheep, and goat models are more suitable for biomechanical performance testing, rehabilitation training, and validation of surgical methods; and the nonhuman primate models (monkey and baboon) are the closest to human, but it is more difficult to carry out the animal studies on them because of ethical issues, high feeding cost, and management difficulties.
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Affiliation(s)
- Wanlu Zhao
- College of Biomedical Engineering and Sichuan University, Chengdu, People's Republic of China.,National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, People's Republic of China
| | - Jinwei Yang
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, People's Republic of China.,Reproductive Medicine Center, Gansu Provincial Maternity and Child-Care Hospital, Lanzhou, People's Republic of China
| | - Yuhao Kang
- Department of Sports Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, People's Republic of China
| | - Kaiyan Hu
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, People's Republic of China
| | - Mingyue Jiao
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, People's Republic of China
| | - Bing Zhao
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, People's Republic of China
| | - Yanbiao Jiang
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, People's Republic of China.,The First Hospital of Lanzhou University, Lanzhou, People's Republic of China
| | - Chen Liu
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, People's Republic of China
| | - Fengxing Ding
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, People's Republic of China
| | - Bo Yuan
- College of Biomedical Engineering and Sichuan University, Chengdu, People's Republic of China.,National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, People's Republic of China
| | - Bin Ma
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, People's Republic of China.,Key Laboratory of Evidence Based Medicine and Knowledge Translation of Gansu Province, Lanzhou, People's Republic of China
| | - Kai Zhang
- College of Biomedical Engineering and Sichuan University, Chengdu, People's Republic of China.,National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, People's Republic of China.,Institute of Regulatory Science for Medical Devices, Sichuan University, Chengdu, People's Republic of China
| | - Antonios G Mikos
- Department of Bioengineering, Chemical and Biomolecular Engineering, Rice University, Houston, Texas, USA
| | - Xingdong Zhang
- College of Biomedical Engineering and Sichuan University, Chengdu, People's Republic of China.,National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, People's Republic of China.,Institute of Regulatory Science for Medical Devices, Sichuan University, Chengdu, People's Republic of China
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13
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Bridging potential of Taurine-loading PCL conduits transplanted with hEnSCs on resected sciatic nerves. Regen Ther 2022; 21:424-435. [PMID: 36274680 PMCID: PMC9556906 DOI: 10.1016/j.reth.2022.09.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 09/05/2022] [Accepted: 09/12/2022] [Indexed: 11/05/2022] Open
Abstract
Reconstruction of nerve conduits is a promising method for functional improvement in peripheral nerve repair. Besides choosing of a suitable polymer for conduit construction, adding factors such as Taurine improve a more advantageous microenvironment for defect nerve regeneration. Showing several major biological properties of Taurine, for example, regulation of the osmotic pressure, modulation of neurogenesis, and calcium hemostasis, makes it an appropriate option for repairing of defected nerves. To this, we examined repairing effects of Taurine-loading PCL conduits cultured with human endothelial stem cells (hEnSCs) on resected sciatic nerves. PCL/Taurine/Cell conduits transplanted to a 10-mm sciatic nerve gap. Forty-two wistar rats were randomly divided to seven groups: (1) Normal group, (2) Negative control (NC), (3) Positive control (nerve Autograft group), (4) PCL conduits group (PCL), (5) Taurine loaded PCL conduits group (PCL/Taurine), (6) hEnSCs cultured on the PCL conduits (PCL/Cell), (7) hEnSCs cultured on the PCL/Taurine conduits (PCL/Taurine/Cell). Functional recovery of motor and sensory nerves, the action potential of exciting muscle and motor distal latency has seen in PCL/Taurine/Cell conduits. Histological studies showed also remarkable nerve regeneration and obvious bridging has seen in this group. In conclusion, PCL/Taurine/Cell conduits showing suitable mechanical properties and biocompatibility may improve sciatic nerve regeneration.
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Key Words
- AD, Alzheimer's disease
- DAPI, diamidino phenylindole
- DPN, peripheral neuropathy
- ECM, extracellular matrix structure
- EMAP, muscle action potential
- EMG, electromyography
- FBS, fetal bovine serum
- FDA, Food and Drug Administration
- HPF, high power fields
- HPL, hotplate latency
- Human endothelial stem cells (hEnSCs)
- LFB, Luxol fast blue
- MSCs, mesenchymal stem cells
- MTT, dimethylthiazol diphenyl tetrazolium bromide
- NGC, nerve guidance conduits
- Nerve regeneration
- PBS, phosphate-buffered saline
- PCL, polycaprolactone
- PD, Parkinson's disease
- PNS, peripheral nerve system
- SFI, sciatic functionl index
- TCP, tissue culture plate
- Taurine
- WRL, withdrawal reflex latency
- hEnSCs, human endothelial stem cells
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14
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Su Q, Nasser MI, He J, Deng G, Ouyang Q, Zhuang D, Deng Y, Hu H, Liu N, Li Z, Zhu P, Li G. Engineered Schwann Cell-Based Therapies for Injury Peripheral Nerve Reconstruction. Front Cell Neurosci 2022; 16:865266. [PMID: 35602558 PMCID: PMC9120533 DOI: 10.3389/fncel.2022.865266] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Accepted: 04/04/2022] [Indexed: 12/12/2022] Open
Abstract
Compared with the central nervous system, the adult peripheral nervous system possesses a remarkable regenerative capacity, which is due to the strong plasticity of Schwann cells (SCs) in peripheral nerves. After peripheral nervous injury, SCs de-differentiate and transform into repair phenotypes, and play a critical role in axonal regeneration, myelin formation, and clearance of axonal and myelin debris. In view of the limited self-repair capability of SCs for long segment defects of peripheral nerve defects, it is of great clinical value to supplement SCs in necrotic areas through gene modification or stem cell transplantation or to construct tissue-engineered nerve combined with bioactive scaffolds to repair such tissue defects. Based on the developmental lineage of SCs and the gene regulation network after peripheral nerve injury (PNI), this review summarizes the possibility of using SCs constructed by the latest gene modification technology to repair PNI. The therapeutic effects of tissue-engineered nerve constructed by materials combined with Schwann cells resembles autologous transplantation, which is the gold standard for PNI repair. Therefore, this review generalizes the research progress of biomaterials combined with Schwann cells for PNI repair. Based on the difficulty of donor sources, this review also discusses the potential of “unlimited” provision of pluripotent stem cells capable of directing differentiation or transforming existing somatic cells into induced SCs. The summary of these concepts and therapeutic strategies makes it possible for SCs to be used more effectively in the repair of PNI.
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Affiliation(s)
- Qisong Su
- Medical Research Center, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
- Guangdong Provincial People’s Hospital, Guangdong Cardiovascular Institute, Guangzhou, China
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, China
| | - Moussa Ide Nasser
- Medical Research Center, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
- Guangdong Provincial People’s Hospital, Guangdong Cardiovascular Institute, Guangzhou, China
| | - Jiaming He
- School of Basic Medical Science, Shandong University, Jinan, China
| | - Gang Deng
- Guangdong Provincial People’s Hospital, Guangdong Cardiovascular Institute, Guangzhou, China
- School of Medicine, South China University of Technology, Guangzhou, China
| | - Qing Ouyang
- Guangdong Provincial People’s Hospital, Guangdong Cardiovascular Institute, Guangzhou, China
- School of Medicine, South China University of Technology, Guangzhou, China
| | - Donglin Zhuang
- Medical Research Center, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yuzhi Deng
- Guangdong Provincial People’s Hospital, Guangdong Cardiovascular Institute, Guangzhou, China
- The First Clinical College, Guangdong Medical University, Zhanjiang, China
| | - Haoyun Hu
- Guangdong Provincial People’s Hospital, Guangdong Cardiovascular Institute, Guangzhou, China
- The First Clinical College, Guangdong Medical University, Zhanjiang, China
| | - Nanbo Liu
- Medical Research Center, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, China
| | - Zhetao Li
- Medical Research Center, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Ping Zhu
- Medical Research Center, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
- Guangdong Provincial People’s Hospital, Guangdong Cardiovascular Institute, Guangzhou, China
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, China
- School of Medicine, South China University of Technology, Guangzhou, China
- The First Clinical College, Guangdong Medical University, Zhanjiang, China
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Structural Heart Disease, Guangzhou, China
- *Correspondence: Ping Zhu,
| | - Ge Li
- Medical Research Center, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
- Guangdong Provincial People’s Hospital, Guangdong Cardiovascular Institute, Guangzhou, China
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, China
- Guangdong Provincial Key Laboratory of Structural Heart Disease, Guangzhou, China
- Ge Li,
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15
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Yan Y, Yao R, Zhao J, Chen K, Duan L, Wang T, Zhang S, Guan J, Zheng Z, Wang X, Liu Z, Li Y, Li G. Implantable nerve guidance conduits: Material combinations, multi-functional strategies and advanced engineering innovations. Bioact Mater 2022; 11:57-76. [PMID: 34938913 PMCID: PMC8665266 DOI: 10.1016/j.bioactmat.2021.09.030] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 09/17/2021] [Accepted: 09/26/2021] [Indexed: 01/15/2023] Open
Abstract
Nerve guidance conduits (NGCs) have attracted much attention due to their great necessity and applicability in clinical use for the peripheral nerve repair. Great efforts in recent years have been devoted to the development of high-performance NGCs using various materials and strategies. The present review provides a comprehensive overview of progress in the material innovation, structural design, advanced engineering technologies and multi functionalization of state-of-the-art nerve guidance conduits NGCs. Abundant advanced engineering technologies including extrusion-based system, laser-based system, and novel textile forming techniques in terms of weaving, knitting, braiding, and electrospinning techniques were also analyzed in detail. Findings arising from this review indicate that the structural mimetic NGCs combined with natural and synthetic materials using advanced manufacturing technologies can make full use of their complementary advantages, acquiring better biomechanical properties, chemical stability and biocompatibility. Finally, the existing challenges and future opportunities of NGCs were put forward aiming for further research and applications of NGCs.
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Affiliation(s)
- Yixin Yan
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, 215123, China
- Department of Materials, University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Ruotong Yao
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, 215123, China
| | - Jingyuan Zhao
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, 215123, China
| | - Kaili Chen
- Department of Materials, Imperial College London, SW7 2AZ, UK
| | - Lirong Duan
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, 215123, China
| | - Tian Wang
- Wilson College of Textiles, North Carolina State University, Raleigh, 27695, USA
| | - Shujun Zhang
- Research Centre of Printed Flexible Electronics, School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen, 518055, China
| | - Jinping Guan
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, 215123, China
| | - Zhaozhu Zheng
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, 215123, China
| | - Xiaoqin Wang
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, 215123, China
| | - Zekun Liu
- Department of Materials, University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Yi Li
- Department of Materials, University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Gang Li
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, 215123, China
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16
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Eleftheriadou D, Berg M, Phillips JB, Shipley RJ. A combined experimental and computational framework to evaluate the behavior of therapeutic cells for peripheral nerve regeneration. Biotechnol Bioeng 2022; 119:1980-1996. [PMID: 35445744 PMCID: PMC9323509 DOI: 10.1002/bit.28105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 03/22/2022] [Accepted: 04/08/2022] [Indexed: 11/08/2022]
Abstract
Recent studies have explored the potential of tissue‐mimetic scaffolds in encouraging nerve regeneration. One of the major determinants of the regenerative success of cellular nerve repair constructs (NRCs) is the local microenvironment, particularly native low oxygen conditions which can affect implanted cell survival and functional performance. In vivo, cells reside in a range of environmental conditions due to the spatial gradients of nutrient concentrations that are established. Here we evaluate in vitro the differences in cellular behavior that such conditions induce, including key biological features such as oxygen metabolism, glucose consumption, cell death, and vascular endothelial growth factor secretion. Experimental measurements are used to devise and parameterize a mathematical model that describes the behavior of the cells. The proposed model effectively describes the interactions between cells and their microenvironment and could in the future be extended, allowing researchers to compare the behavior of different therapeutic cells. Such a combinatorial approach could be used to accelerate the clinical translation of NRCs by identifying which critical design features should be optimized when fabricating engineered nerve repair conduits.
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Affiliation(s)
- D Eleftheriadou
- Centre for Nerve Engineering, University College London, London, WC1E 6B.,Department of Pharmacology, UCL School of Pharmacy, University College London, London, WC1N 1AX.,Department of Mechanical Engineering, University College London, London, WC1E 7JE
| | - M Berg
- Centre for Nerve Engineering, University College London, London, WC1E 6B.,Department of Mechanical Engineering, University College London, London, WC1E 7JE
| | - J B Phillips
- Centre for Nerve Engineering, University College London, London, WC1E 6B.,Department of Pharmacology, UCL School of Pharmacy, University College London, London, WC1N 1AX
| | - R J Shipley
- Centre for Nerve Engineering, University College London, London, WC1E 6B.,Department of Mechanical Engineering, University College London, London, WC1E 7JE
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17
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Lee HS, Jeon EY, Nam JJ, Park JH, Choi IC, Kim SH, Chung JJ, Lee K, Park JW, Jung Y. Development of a regenerative porous PLCL nerve guidance conduit with swellable hydrogel-based microgrooved surface pattern via 3D printing. Acta Biomater 2022; 141:219-232. [PMID: 35081432 DOI: 10.1016/j.actbio.2022.01.042] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 01/13/2022] [Accepted: 01/18/2022] [Indexed: 12/20/2022]
Abstract
Peripheral nerve injury causes severe loss of motor and sensory functions, consequently increasing morbidity in affected patients. An autogenous nerve graft is considered the current gold standard for reconstructing nerve defects and recovering lost neurological functions; however, there are certain limitations to this method, such as limited donor nerve supply. With advances in regenerative medicine, recent research has focused on the fabrication of tissue-engineered nerve grafts as promising alternatives to the autogenous nerve grafts. In this study, we designed a nerve guidance conduit using an electrospun poly(lactide-co-ε-caprolactone) (PLCL) membrane with a visible light-crosslinked gelatin hydrogel. The PLCL nanoporous membrane with permeability served as a flexible and non-collapsible epineurium for the nerve conduit; the inner-aligned gelatin hydrogel paths were fabricated via 3D printing and a photocrosslinking system. The resultant gelatin hydrogel with microgrooved surface pattern was established as a conducting guidance path for the effective regeneration of axons and served as a reservoir that can incorporate and release bioactive molecules. From in vivo performance tests using a rat sciatic nerve defect model, our PLCL/gelatin conduit demonstrated successful axonal regeneration, remyelination capacities and facilitated functional recovery. Hence, the PLCL/gelatin conduit developed in this study is a promising substitute for autogenous nerve grafts. STATEMENT OF SIGNIFICANCE: Nerve guidance conduits (NGCs) are developed as promising recovery techniques for bridging peripheral nerve defects. However, there are still technological limitations including differences in the structures and components between natural peripheral nerve and NGCs. In this study, we designed a NGC composed of an electrospun poly(lactide-co-ε-caprolactone) (PLCL) membrane and 3D printed inner gelatin hydrogel to serve as a flexible and non-collapsible epineurium and a conducting guidance path, respectively, to mimic the fascicular structure of the peripheral nerve. In particular, in vitro cell tests clearly showed that gelatin hydrogel could guide the cells and function as a reservoir that incorporate and release nerve growth factor. From in vivo performance tests, our regenerative conduit successfully led to axonal regeneration with effective functional recovery.
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Affiliation(s)
- Hyun Su Lee
- Center for Biomaterials, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea; Program in Nanoscience and Technology, Graduate School of Convergence Science and Technology, Seoul National University, Seoul 08826, Republic of Korea
| | - Eun Young Jeon
- Center for Biomaterials, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
| | - Jae Jun Nam
- Department of Orthopedic Surgery, College of Medicine, Korea University, Seoul 02841, Republic of Korea
| | - Ji Hun Park
- Department of Orthopedic Surgery, College of Medicine, Korea University, Seoul 02841, Republic of Korea
| | - In Cheul Choi
- Department of Orthopedic Surgery, College of Medicine, Korea University, Seoul 02841, Republic of Korea
| | - Soo Hyun Kim
- Center for Biomaterials, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea; NBIT, KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul 02841, Republic of Korea
| | - Justin J Chung
- Center for Biomaterials, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
| | - Kangwon Lee
- Department of Applied Bioengineering, Graduate School of Convergence Science and Technology, Seoul National University, Seoul 08826, Republic of Korea; Research Institute for Convergence Science, Seoul National University, Seoul 08826, Republic of Korea
| | - Jong Woong Park
- Department of Orthopedic Surgery, College of Medicine, Korea University, Seoul 02841, Republic of Korea.
| | - Youngmee Jung
- Center for Biomaterials, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea; School of Electrical and Electronic Engineering, YU-KIST Institute, Yonsei University, Seoul 03722, Republic of Korea.
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18
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Kaplan B, Levenberg S. The Role of Biomaterials in Peripheral Nerve and Spinal Cord Injury: A Review. Int J Mol Sci 2022; 23:ijms23031244. [PMID: 35163168 PMCID: PMC8835501 DOI: 10.3390/ijms23031244] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 01/19/2022] [Accepted: 01/20/2022] [Indexed: 12/18/2022] Open
Abstract
Peripheral nerve and spinal cord injuries are potentially devastating traumatic conditions with major consequences for patients’ lives. Severe cases of these conditions are currently incurable. In both the peripheral nerves and the spinal cord, disruption and degeneration of axons is the main cause of neurological deficits. Biomaterials offer experimental solutions to improve these conditions. They can be engineered as scaffolds that mimic the nerve tissue extracellular matrix and, upon implantation, encourage axonal regeneration. Furthermore, biomaterial scaffolds can be designed to deliver therapeutic agents to the lesion site. This article presents the principles and recent advances in the use of biomaterials for axonal regeneration and nervous system repair.
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Affiliation(s)
- Ben Kaplan
- Faculty of Biomedical Engineering, Technion-Israel Institute of Technology, Haifa 3200003, Israel;
- Bruce Rapaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa 3525433, Israel
| | - Shulamit Levenberg
- Faculty of Biomedical Engineering, Technion-Israel Institute of Technology, Haifa 3200003, Israel;
- Correspondence:
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19
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Dervan A, Franchi A, Almeida-Gonzalez FR, Dowling JK, Kwakyi OB, McCoy CE, O’Brien FJ, Hibbitts A. Biomaterial and Therapeutic Approaches for the Manipulation of Macrophage Phenotype in Peripheral and Central Nerve Repair. Pharmaceutics 2021; 13:2161. [PMID: 34959446 PMCID: PMC8706646 DOI: 10.3390/pharmaceutics13122161] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 11/23/2021] [Accepted: 11/25/2021] [Indexed: 12/18/2022] Open
Abstract
Injury to the peripheral or central nervous systems often results in extensive loss of motor and sensory function that can greatly diminish quality of life. In both cases, macrophage infiltration into the injury site plays an integral role in the host tissue inflammatory response. In particular, the temporally related transition of macrophage phenotype between the M1/M2 inflammatory/repair states is critical for successful tissue repair. In recent years, biomaterial implants have emerged as a novel approach to bridge lesion sites and provide a growth-inductive environment for regenerating axons. This has more recently seen these two areas of research increasingly intersecting in the creation of 'immune-modulatory' biomaterials. These synthetic or naturally derived materials are fabricated to drive macrophages towards a pro-repair phenotype. This review considers the macrophage-mediated inflammatory events that occur following nervous tissue injury and outlines the latest developments in biomaterial-based strategies to influence macrophage phenotype and enhance repair.
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Affiliation(s)
- Adrian Dervan
- Tissue Engineering Research Group, Department of Anatomy and Regenerative Medicine, Royal College of Surgeons in Ireland, D02 YN77 Dublin, Ireland; (A.D.); (A.F.); (F.R.A.-G.); (F.J.O.)
- Trinity Centre for Bioengineering, Trinity College Dublin, D02 R590 Dublin, Ireland
- Advanced Materials and Bioengineering Research Centre (AMBER), Royal College of Surgeons in Ireland and Trinity College Dublin, D02 YN77 Dublin, Ireland
| | - Antonio Franchi
- Tissue Engineering Research Group, Department of Anatomy and Regenerative Medicine, Royal College of Surgeons in Ireland, D02 YN77 Dublin, Ireland; (A.D.); (A.F.); (F.R.A.-G.); (F.J.O.)
- Trinity Centre for Bioengineering, Trinity College Dublin, D02 R590 Dublin, Ireland
| | - Francisco R. Almeida-Gonzalez
- Tissue Engineering Research Group, Department of Anatomy and Regenerative Medicine, Royal College of Surgeons in Ireland, D02 YN77 Dublin, Ireland; (A.D.); (A.F.); (F.R.A.-G.); (F.J.O.)
- Trinity Centre for Bioengineering, Trinity College Dublin, D02 R590 Dublin, Ireland
- Advanced Materials and Bioengineering Research Centre (AMBER), Royal College of Surgeons in Ireland and Trinity College Dublin, D02 YN77 Dublin, Ireland
| | - Jennifer K. Dowling
- School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland, D02 YN77 Dublin, Ireland; (J.K.D.); (O.B.K.); (C.E.M.)
- FutureNeuro SFI Research Centre, Royal College of Surgeons in Ireland, D02 YN77 Dublin, Ireland
| | - Ohemaa B. Kwakyi
- School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland, D02 YN77 Dublin, Ireland; (J.K.D.); (O.B.K.); (C.E.M.)
- School of Medicine, Royal College of Surgeons in Ireland, D02 YN77 Dublin, Ireland
| | - Claire E. McCoy
- School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland, D02 YN77 Dublin, Ireland; (J.K.D.); (O.B.K.); (C.E.M.)
- FutureNeuro SFI Research Centre, Royal College of Surgeons in Ireland, D02 YN77 Dublin, Ireland
| | - Fergal J. O’Brien
- Tissue Engineering Research Group, Department of Anatomy and Regenerative Medicine, Royal College of Surgeons in Ireland, D02 YN77 Dublin, Ireland; (A.D.); (A.F.); (F.R.A.-G.); (F.J.O.)
- Trinity Centre for Bioengineering, Trinity College Dublin, D02 R590 Dublin, Ireland
- Advanced Materials and Bioengineering Research Centre (AMBER), Royal College of Surgeons in Ireland and Trinity College Dublin, D02 YN77 Dublin, Ireland
| | - Alan Hibbitts
- Tissue Engineering Research Group, Department of Anatomy and Regenerative Medicine, Royal College of Surgeons in Ireland, D02 YN77 Dublin, Ireland; (A.D.); (A.F.); (F.R.A.-G.); (F.J.O.)
- Trinity Centre for Bioengineering, Trinity College Dublin, D02 R590 Dublin, Ireland
- Advanced Materials and Bioengineering Research Centre (AMBER), Royal College of Surgeons in Ireland and Trinity College Dublin, D02 YN77 Dublin, Ireland
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20
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Bae JY, Choi SJ, Kim JK. Comparison of mesenchymal stem cell attachment efficiency in acellular neural graft for peripheral nerve regeneration. J Plast Reconstr Aesthet Surg 2021; 75:1674-1681. [PMID: 34955403 DOI: 10.1016/j.bjps.2021.11.098] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 11/13/2021] [Accepted: 11/18/2021] [Indexed: 02/06/2023]
Abstract
Decellularized nerve allograft is an alternative to autologous nerve graft for nerve defects but has shown inferior clinical outcomes. Mesenchymal stem cells can play a key role in improving nerve regeneration of decellularized nerve allografts. The purpose of this study was to compare different mesenchymal stem cell seeding methods and to find the most efficient way to attach cells to nerve grafts for peripheral nerve regeneration. Wharton's jelly mesenchymal stem cells were collected from human umbilical cords and were seeded in the acellular nerve graft in five different ways as follows: PBS injection, fibrin glue drop, Matrigel drop, bioreactor, and Matrigel injection. A 6-mm sciatic nerve defect of Sprague-Dawley rats was bridged using mesenchymal stem cells-laden acellular nerve grafts according to the five seeding methods. Two days after implantation, the nerve tissue was biopsied and analyzed by the immunofluorescence staining of nuclei. The number of Wharton's jelly mesenchymal stem cells (+ h Nuclei) was counted in the inside, outside, and the total area of the graft sections under 200X magnification. The highest efficiency of mesenchymal stem cell attachment inside the graft and the highest total number of attached mesenchymal stem cells was observed in the group using Matrigel injection (p < 0.0001). This study showed mesenchymal stem cells can be more effectively attached to decellularized nerve graft using the injection method with Matrigel than other static or dynamic seeding methods in vivo.
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Affiliation(s)
- Joo-Yul Bae
- Department of Orthopedic Surgery, University of Ulsan College of Medicine, Gangneung Asan Hospital, Gangneung-si, Korea
| | | | - Jae Kwang Kim
- Department of Orthopedic Surgery, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea.
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21
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Santisteban-Espejo A, Martin-Piedra MA, Campos A, Moran-Sanchez J, Cobo MJ, Pacheco-Serrano AI, Moral-Munoz JA. Information and Scientific Impact of Advanced Therapies in the Age of Mass Media: Altmetrics-Based Analysis of Tissue Engineering. J Med Internet Res 2021; 23:e25394. [PMID: 34842548 PMCID: PMC8665381 DOI: 10.2196/25394] [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: 10/30/2020] [Revised: 02/23/2021] [Accepted: 07/05/2021] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Tissue engineering (TE) constitutes a multidisciplinary field aiming to construct artificial tissues to regenerate end-stage organs. Its development has taken place since the last decade of the 20th century, entailing a clinical revolution. TE research groups have worked and shared relevant information in the mass media era. Thus, it would be interesting to study the online dimension of TE research and to compare it with traditional measures of scientific impact. OBJECTIVE The objective of this study was to evaluate the online dimension of TE documents from 2012 to 2018 using metadata obtained from the Web of Science (WoS) and Altmetric and to develop a prediction equation for the impact of TE documents from altmetric scores. METHODS We analyzed 10,112 TE documents through descriptive and statistical methods. First, the TE temporal evolution was exposed for WoS and 15 online platforms (news, blogs, policy, Twitter, patents, peer review, Weibo, Facebook, Wikipedia, Google, Reddit, F1000, Q&A, video, and Mendeley Readers). The 10 most cited TE original articles were ranked according to the normalized WoS citations and the normalized Altmetric Attention Score. Second, to better comprehend the TE online framework, correlation and factor analyses were performed based on the suitable results previously obtained for the Bartlett sphericity and Kaiser-Meyer-Olkin tests. Finally, the linear regression model was applied to elucidate the relation between academics and online media and to construct a prediction equation for TE from altmetrics data. RESULTS TE dynamic shows an upward trend in WoS citations, Twitter, Mendeley Readers, and Altmetric Scores. However, WoS and Altmetric rankings for the most cited documents clearly differ. When compared, the best correlation results were obtained for Mendeley Readers and WoS (ρ=0.71). In addition, the factor analysis identified 6 factors that could explain the previously observed differences between academic institutions and the online platforms evaluated. At this point, the mathematical model constructed is able to predict and explain more than 40% of TE WoS citations from Altmetric scores. CONCLUSIONS Scientific information related to the construction of bioartificial tissues increasingly reaches society through different online media. Because the focus of TE research importantly differs when the academic institutions and online platforms are compared, basic and clinical research groups, academic institutions, and health politicians should make a coordinated effort toward the design and implementation of adequate strategies for information diffusion and population health education.
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Affiliation(s)
- Antonio Santisteban-Espejo
- Department of Pathology, Puerta del Mar University Hospital, Cadiz, Spain.,Institute of Research and Innovation in Biomedical Sciences of the Province of Cadiz (INiBICA), University of Cadiz, Cadiz, Spain
| | | | - Antonio Campos
- Department of Histology, Tissue Engineering Group, University of Granada, Granada, Spain
| | - Julia Moran-Sanchez
- Department of Medicine, University of Cadiz, Cadiz, Spain.,Department of Hematology and Hemotherapy, Puerta del Mar University Hospital, Cadiz, Spain
| | - Manuel J Cobo
- Department of Computer Science and Engineering, University of Cadiz, Cadiz, Spain
| | | | - Jose A Moral-Munoz
- Institute of Research and Innovation in Biomedical Sciences of the Province of Cadiz (INiBICA), University of Cadiz, Cadiz, Spain.,Department of Nursing and Physiotherapy, University of Cadiz, Cadiz, Spain
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22
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Linares-Gonzalez L, Rodenas-Herranz T, Campos F, Ruiz-Villaverde R, Carriel V. Basic Quality Controls Used in Skin Tissue Engineering. Life (Basel) 2021; 11:1033. [PMID: 34685402 PMCID: PMC8541591 DOI: 10.3390/life11101033] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 09/25/2021] [Accepted: 09/25/2021] [Indexed: 12/15/2022] Open
Abstract
Reconstruction of skin defects is often a challenging effort due to the currently limited reconstructive options. In this sense, tissue engineering has emerged as a possible alternative to replace or repair diseased or damaged tissues from the patient's own cells. A substantial number of tissue-engineered skin substitutes (TESSs) have been conceived and evaluated in vitro and in vivo showing promising results in the preclinical stage. However, only a few constructs have been used in the clinic. The lack of standardization in evaluation methods employed may in part be responsible for this discrepancy. This review covers the most well-known and up-to-date methods for evaluating the optimization of new TESSs and orientative guidelines for the evaluation of TESSs are proposed.
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Affiliation(s)
- Laura Linares-Gonzalez
- Servicio de Dermatología, Hospital Universitario San Cecilio, 18016 Granada, Spain; (L.L.-G.); (T.R.-H.)
- Ibs. GRANADA, Instituto Biosanitario de Granada, 18016 Granada, Spain; (F.C.); (V.C.)
- Department of Histology, University of Granada, 18016 Granada, Spain
| | - Teresa Rodenas-Herranz
- Servicio de Dermatología, Hospital Universitario San Cecilio, 18016 Granada, Spain; (L.L.-G.); (T.R.-H.)
- Ibs. GRANADA, Instituto Biosanitario de Granada, 18016 Granada, Spain; (F.C.); (V.C.)
- Department of Histology, University of Granada, 18016 Granada, Spain
| | - Fernando Campos
- Ibs. GRANADA, Instituto Biosanitario de Granada, 18016 Granada, Spain; (F.C.); (V.C.)
- Department of Histology, University of Granada, 18016 Granada, Spain
| | - Ricardo Ruiz-Villaverde
- Servicio de Dermatología, Hospital Universitario San Cecilio, 18016 Granada, Spain; (L.L.-G.); (T.R.-H.)
- Ibs. GRANADA, Instituto Biosanitario de Granada, 18016 Granada, Spain; (F.C.); (V.C.)
- Department of Histology, University of Granada, 18016 Granada, Spain
| | - Víctor Carriel
- Ibs. GRANADA, Instituto Biosanitario de Granada, 18016 Granada, Spain; (F.C.); (V.C.)
- Department of Histology, University of Granada, 18016 Granada, Spain
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23
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Kim DH, Shin SH, Lee MK, Lee JJ, Kim JK, Chung YG. Effectiveness and Biocompatibility of Decellularized Nerve Graft Using an In Vivo Rat Sciatic Nerve Model. Tissue Eng Regen Med 2021; 18:797-805. [PMID: 34386942 DOI: 10.1007/s13770-021-00353-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 05/04/2021] [Accepted: 05/10/2021] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND Decellularized nerve allografting is one of promising treatment options for nerve defect. As an effort to develop more efficient nerve graft, recently we have developed a new decellularization method for nerve allograft. The aim of this study was to evaluate the effectiveness and biocompatibility of nerve graft decellularized by our newly developed method. METHODS Forty-eight inbred male Lewis rats were divided into two groups, Group I (autograft group, n = 25), Group II (decellularized isograft group, n = 23). Decellularized nerve grafts were prepared with our newly developed methods using amphoteric detergent and nuclease treatment. Serum cytokine level measurements at 0, 2, and 4 weeks and histologic evaluation for inflammatory cell infiltration at 6 and 16 weeks after nerve graft. RESULTS There was no significant difference in mean maximum isometric tetanic force and weight of tibialis anterior muscle or ankle angle at toe-off phase between two groups at 6 and 16 weeks survival time points (p > 0.05). There was no inflammatory cell infiltration in either group and histomorphometric assessments of 6- and 16-week specimens of the isograft group did not differ from those in the autograft group with regard to number of fascicle, cross sectional area, fascicle area ratio, and number of regenerated nerve cells. CONCLUSION Based on inflammatory reaction, axonal regeneration, and functional outcomes, our newly developed decellularized nerve grafts were fairly biocompatible and had comparable effectiveness to autografts for nerve regeneration, which suggested it would be suitable for nerve reconstruction as an alternative to autograft.
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Affiliation(s)
- Dong Hyun Kim
- Department of Orthopedic Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Banpo-daero 222, Seocho-gu, Seoul, 06591, Korea
| | - Seung-Han Shin
- Department of Orthopedic Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Banpo-daero 222, Seocho-gu, Seoul, 06591, Korea
| | - Myeong-Kyu Lee
- Department of Research and Development, Korea Public Tissue Bank, 37 Sagimakgol-ro 62beon-gil, Jungwon-gu, Seongnam-si, Gyeonggi-do, 13211, Korea
| | - Jae-Jin Lee
- Department of Orthopedic Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Banpo-daero 222, Seocho-gu, Seoul, 06591, Korea
| | - Jae Kwang Kim
- Department of Orthopedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-Gu, Seoul, 05505, Korea
| | - Yang-Guk Chung
- Department of Orthopedic Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Banpo-daero 222, Seocho-gu, Seoul, 06591, Korea.
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24
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Dong S, Feng S, Chen Y, Chen M, Yang Y, Zhang J, Li H, Li X, Ji L, Yang X, Hao Y, Chen J, Wo Y. Nerve Suture Combined With ADSCs Injection Under Real-Time and Dynamic NIR-II Fluorescence Imaging in Peripheral Nerve Regeneration in vivo. Front Chem 2021; 9:676928. [PMID: 34336784 PMCID: PMC8317167 DOI: 10.3389/fchem.2021.676928] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Accepted: 04/13/2021] [Indexed: 12/04/2022] Open
Abstract
Peripheral nerve injury gives rise to devastating conditions including neural dysfunction, unbearable pain and even paralysis. The therapeutic effect of current treatment for peripheral nerve injury is unsatisfactory, resulting in slow nerve regeneration and incomplete recovery of neural function. In this study, nerve suture combined with ADSCs injection was adopted in rat model of sciatic nerve injury. Under real-time visualization of the injected cells with the guidance of NIR-II fluorescence imaging in vivo, a spatio-temporal map displaying cell migration from the proximal injection site (0 day post-injection) of the nerve to the sutured site (7 days post-injection), and then to the distal section (14 days post-injection) was demonstrated. Furthermore, the results of electromyography and mechanical pain threshold indicated nerve regeneration and functional recovery after the combined therapy. Therefore, in the current study, the observed ADSCs migration in vivo, electrophysiological examination results and pathological changes all provided robust evidence for the efficacy of the applied treatment. Our approach of nerve suture combined with ADSCs injection in treating peripheral nerve injury under real-time NIR-II imaging monitoring in vivo added novel insights into the treatment for peripheral nerve injury, thus further enhancing in-depth understanding of peripheral nerve regeneration and the mechanism behind.
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Affiliation(s)
- Shixian Dong
- Department of Anatomy and Physiology, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Sijia Feng
- Department of Sports Medicine, Sports Medicine Institute of Fudan University, Huashan Hospital, Fudan University, Shanghai, China
| | - Yuzhou Chen
- Department of Sports Medicine, Sports Medicine Institute of Fudan University, Huashan Hospital, Fudan University, Shanghai, China
| | - Mo Chen
- Department of Sports Medicine, Sports Medicine Institute of Fudan University, Huashan Hospital, Fudan University, Shanghai, China
| | - Yimeng Yang
- Department of Sports Medicine, Sports Medicine Institute of Fudan University, Huashan Hospital, Fudan University, Shanghai, China
| | - Jian Zhang
- Department of Sports Medicine, Sports Medicine Institute of Fudan University, Huashan Hospital, Fudan University, Shanghai, China
| | - Huizhu Li
- Department of Sports Medicine, Sports Medicine Institute of Fudan University, Huashan Hospital, Fudan University, Shanghai, China
| | - Xiaotong Li
- Department of Anatomy and Physiology, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Liang Ji
- Department of Anatomy and Physiology, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xing Yang
- Department of Orthopedics, Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, China
| | - Yuefeng Hao
- Department of Orthopedics, Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, China
| | - Jun Chen
- Department of Sports Medicine, Sports Medicine Institute of Fudan University, Huashan Hospital, Fudan University, Shanghai, China
| | - Yan Wo
- Department of Anatomy and Physiology, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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25
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Sánchez-Porras D, Durand-Herrera D, Paes AB, Chato-Astrain J, Verplancke R, Vanfleteren J, Sánchez-López JD, García-García ÓD, Campos F, Carriel V. Ex Vivo Generation and Characterization of Human Hyaline and Elastic Cartilaginous Microtissues for Tissue Engineering Applications. Biomedicines 2021; 9:biomedicines9030292. [PMID: 33809387 PMCID: PMC8001313 DOI: 10.3390/biomedicines9030292] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 03/05/2021] [Accepted: 03/10/2021] [Indexed: 12/25/2022] Open
Abstract
Considering the high prevalence of cartilage-associated pathologies, low self-repair capacity and limitations of current repair techniques, tissue engineering (TE) strategies have emerged as a promising alternative in this field. Three-dimensional culture techniques have gained attention in recent years, showing their ability to provide the most biomimetic environment for the cells under culture conditions, enabling the cells to fabricate natural, 3D functional microtissues (MTs). In this sense, the aim of this study was to generate, characterize and compare scaffold-free human hyaline and elastic cartilage-derived MTs (HC-MTs and EC-MTs, respectively) under expansion (EM) and chondrogenic media (CM). MTs were generated by using agarose microchips and evaluated ex vivo for 28 days. The MTs generated were subjected to morphometric assessment and cell viability, metabolic activity and histological analyses. Results suggest that the use of CM improves the biomimicry of the MTs obtained in terms of morphology, viability and extracellular matrix (ECM) synthesis with respect to the use of EM. Moreover, the overall results indicate a faster and more sensitive response of the EC-derived cells to the use of CM as compared to HC chondrocytes. Finally, future preclinical in vivo studies are still needed to determine the potential clinical usefulness of these novel advanced therapy products.
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Affiliation(s)
- David Sánchez-Porras
- Department of Histology, Tissue Engineering Group, Faculty of Medicine, University of Granada, 18016 Granada, Spain; (D.S.-P.); (D.D.-H.)
- Instituto de Investigación Biosanitaria ibs. GRANADA, 18012 Granada, Spain; (J.C.-A.); (Ó.D.G.-G.)
- Doctoral Program in Biomedicine, Doctoral School, University of Granada, 18016 Granada, Spain
| | - Daniel Durand-Herrera
- Department of Histology, Tissue Engineering Group, Faculty of Medicine, University of Granada, 18016 Granada, Spain; (D.S.-P.); (D.D.-H.)
- Instituto de Investigación Biosanitaria ibs. GRANADA, 18012 Granada, Spain; (J.C.-A.); (Ó.D.G.-G.)
| | - Ana B. Paes
- Master Program in Tissue Engineering and Advanced Therapies, International School for Postgraduate Studies, University of Granada, 18016 Granada, Spain;
| | - Jesús Chato-Astrain
- Department of Histology, Tissue Engineering Group, Faculty of Medicine, University of Granada, 18016 Granada, Spain; (D.S.-P.); (D.D.-H.)
- Instituto de Investigación Biosanitaria ibs. GRANADA, 18012 Granada, Spain; (J.C.-A.); (Ó.D.G.-G.)
| | - Rik Verplancke
- Centre for Microsystems Technology (CMST), imec and Ghent University, 9052 Ghent, Belgium; (R.V.); (J.V.)
| | - Jan Vanfleteren
- Centre for Microsystems Technology (CMST), imec and Ghent University, 9052 Ghent, Belgium; (R.V.); (J.V.)
| | - José Darío Sánchez-López
- Division of Maxillofacial Surgery, University Hospital Complex of Granada, 18013 Granada, Spain;
| | - Óscar Darío García-García
- Department of Histology, Tissue Engineering Group, Faculty of Medicine, University of Granada, 18016 Granada, Spain; (D.S.-P.); (D.D.-H.)
- Instituto de Investigación Biosanitaria ibs. GRANADA, 18012 Granada, Spain; (J.C.-A.); (Ó.D.G.-G.)
| | - Fernando Campos
- Department of Histology, Tissue Engineering Group, Faculty of Medicine, University of Granada, 18016 Granada, Spain; (D.S.-P.); (D.D.-H.)
- Instituto de Investigación Biosanitaria ibs. GRANADA, 18012 Granada, Spain; (J.C.-A.); (Ó.D.G.-G.)
- Correspondence: (F.C.); (V.C.); Tel.: +34-958-248-295 (V.C.)
| | - Víctor Carriel
- Department of Histology, Tissue Engineering Group, Faculty of Medicine, University of Granada, 18016 Granada, Spain; (D.S.-P.); (D.D.-H.)
- Instituto de Investigación Biosanitaria ibs. GRANADA, 18012 Granada, Spain; (J.C.-A.); (Ó.D.G.-G.)
- Correspondence: (F.C.); (V.C.); Tel.: +34-958-248-295 (V.C.)
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26
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Comparison of Decellularization Protocols to Generate Peripheral Nerve Grafts: A Study on Rat Sciatic Nerves. Int J Mol Sci 2021; 22:ijms22052389. [PMID: 33673602 PMCID: PMC7957587 DOI: 10.3390/ijms22052389] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 02/23/2021] [Accepted: 02/24/2021] [Indexed: 01/03/2023] Open
Abstract
In critical nerve gap repair, decellularized nerve allografts are considered a promising tissue engineering strategy that can provide superior regeneration results compared to nerve conduits. Decellularized nerves offer a well-conserved extracellular matrix component that has proven to play an important role in supporting axonal guiding and peripheral nerve regeneration. Up to now, the known decellularized techniques are time and effort consuming. The present study, performed on rat sciatic nerves, aims at investigating a novel nerve decellularization protocol able to combine an effective decellularization in short time with a good preservation of the extracellular matrix component. To do this, a decellularization protocol proven to be efficient for tendons (DN-P1) was compared with a decellularization protocol specifically developed for nerves (DN-P2). The outcomes of both the decellularization protocols were assessed by a series of in vitro evaluations, including qualitative and quantitative histological and immunohistochemical analyses, DNA quantification, SEM and TEM ultrastructural analyses, mechanical testing, and viability assay. The overall results showed that DN-P1 could provide promising results if tested in vivo, as the in vitro characterization demonstrated that DN-P1 conserved a better ultrastructure and ECM components compared to DN-P2. Most importantly, DN-P1 was shown to be highly biocompatible, supporting a greater number of viable metabolically active cells.
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27
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García-García ÓD, El Soury M, González-Quevedo D, Sánchez-Porras D, Chato-Astrain J, Campos F, Carriel V. Histological, Biomechanical, and Biological Properties of Genipin-Crosslinked Decellularized Peripheral Nerves. Int J Mol Sci 2021; 22:ijms22020674. [PMID: 33445493 PMCID: PMC7826762 DOI: 10.3390/ijms22020674] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 01/05/2021] [Accepted: 01/07/2021] [Indexed: 02/07/2023] Open
Abstract
Acellular nerve allografts (ANGs) represent a promising alternative in nerve repair. Our aim is to improve the structural and biomechanical properties of biocompatible Sondell (SD) and Roosens (RS) based ANGs using genipin (GP) as a crosslinker agent ex vivo. The impact of two concentrations of GP (0.10% and 0.25%) on Wistar rat sciatic nerve-derived ANGs was assessed at the histological, biomechanical, and biocompatibility levels. Histology confirmed the differences between SD and RS procedures, but not remarkable changes were induced by GP, which helped to preserve the nerve histological pattern. Tensile test revealed that GP enhanced the biomechanical properties of SD and RS ANGs, being the crosslinked RS ANGs more comparable to the native nerves used as control. The evaluation of the ANGs biocompatibility conducted with adipose-derived mesenchymal stem cells cultured within the ANGs confirmed a high degree of biocompatibility in all ANGs, especially in RS and RS-GP 0.10% ANGs. Finally, this study demonstrates that the use of GP could be an efficient alternative to improve the biomechanical properties of ANGs with a slight impact on the biocompatibility and histological pattern. For these reasons, we hypothesize that our novel crosslinked ANGs could be a suitable alternative for future in vivo preclinical studies.
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Affiliation(s)
- Óscar Darío García-García
- Tissue Engineering Group, Department of Histology, University of Granada, 18016 Granada, Spain; (Ó.D.G.-G.); (M.E.S.); (D.G.-Q.); (D.S.-P.); (J.C.-A.)
- Instituto de Investigación Biosanitaria ibs. GRANADA, 18012 Granada, Spain
- Doctoral Program in Biomedicine, University of Granada, 18012 Granada, Spain
| | - Marwa El Soury
- Tissue Engineering Group, Department of Histology, University of Granada, 18016 Granada, Spain; (Ó.D.G.-G.); (M.E.S.); (D.G.-Q.); (D.S.-P.); (J.C.-A.)
- Department of Clinical and Biological Sciences and Neuroscience Institute Cavalieri Ottolenghi (NICO), University of Torino, 10043 Orbassano, Italy
| | - David González-Quevedo
- Tissue Engineering Group, Department of Histology, University of Granada, 18016 Granada, Spain; (Ó.D.G.-G.); (M.E.S.); (D.G.-Q.); (D.S.-P.); (J.C.-A.)
- Department of Orthopedic Surgery and Traumatology, Regional University Hospital of Málaga, 29010 Málaga, Spain
| | - David Sánchez-Porras
- Tissue Engineering Group, Department of Histology, University of Granada, 18016 Granada, Spain; (Ó.D.G.-G.); (M.E.S.); (D.G.-Q.); (D.S.-P.); (J.C.-A.)
- Instituto de Investigación Biosanitaria ibs. GRANADA, 18012 Granada, Spain
| | - Jesús Chato-Astrain
- Tissue Engineering Group, Department of Histology, University of Granada, 18016 Granada, Spain; (Ó.D.G.-G.); (M.E.S.); (D.G.-Q.); (D.S.-P.); (J.C.-A.)
- Instituto de Investigación Biosanitaria ibs. GRANADA, 18012 Granada, Spain
| | - Fernando Campos
- Tissue Engineering Group, Department of Histology, University of Granada, 18016 Granada, Spain; (Ó.D.G.-G.); (M.E.S.); (D.G.-Q.); (D.S.-P.); (J.C.-A.)
- Instituto de Investigación Biosanitaria ibs. GRANADA, 18012 Granada, Spain
- Correspondence: (F.C.); (V.C.)
| | - Víctor Carriel
- Tissue Engineering Group, Department of Histology, University of Granada, 18016 Granada, Spain; (Ó.D.G.-G.); (M.E.S.); (D.G.-Q.); (D.S.-P.); (J.C.-A.)
- Instituto de Investigación Biosanitaria ibs. GRANADA, 18012 Granada, Spain
- Correspondence: (F.C.); (V.C.)
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28
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Fregnan F, Muratori L, Bassani GA, Crosio A, Biagiotti M, Vincoli V, Carta G, Pierimarchi P, Geuna S, Alessandrino A, Freddi G, Ronchi G. Preclinical Validation of SilkBridge TM for Peripheral Nerve Regeneration. Front Bioeng Biotechnol 2020; 8:835. [PMID: 32850714 PMCID: PMC7426473 DOI: 10.3389/fbioe.2020.00835] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 06/29/2020] [Indexed: 12/19/2022] Open
Abstract
Silk fibroin (Bombyx mori) was used to manufacture a nerve conduit (SilkBridgeTM) characterized by a novel 3D architecture. The wall of the conduit consists of two electrospun layers (inner and outer) and one textile layer (middle), perfectly integrated at the structural and functional level. The manufacturing technology conferred high compression strength on the device, thus meeting clinical requirements for physiological and pathological compressive stresses. As demonstrated in a previous work, the silk material has proven to be able to provide a valid substrate for cells to grow on, differentiate and start the fundamental cellular regenerative activities in vitro and, in vivo, at the short time point of 2 weeks, to allow the starting of regenerative processes in terms of good integration with the surrounding tissues and colonization of the wall layers and of the lumen with several cell types. In the present study, a 10 mm long gap in the median nerve was repaired with 12 mm SilkBridgeTM conduit and evaluated at middle (4 weeks) and at longer time points (12 and 24 weeks). The SilkBridgeTM conduit led to a very good functional and morphological recovery of the median nerve, similar to that observed with the reference autograft nerve reconstruction procedure. Taken together, all these results demonstrated that SilkBridgeTM has an optimized balance of biomechanical and biological properties, which allowed proceeding with a first-in-human clinical study aimed at evaluating safety and effectiveness of using the device for the reconstruction of digital nerve defects in humans.
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Affiliation(s)
- Federica Fregnan
- Department of Clinical and Biological Sciences, University of Turin, Turin, Italy.,Neuroscience Institute Cavalieri Ottolenghi, University of Turin, Turin, Italy
| | - Luisa Muratori
- Department of Clinical and Biological Sciences, University of Turin, Turin, Italy.,Neuroscience Institute Cavalieri Ottolenghi, University of Turin, Turin, Italy
| | | | - Alessandro Crosio
- Department of Clinical and Biological Sciences, University of Turin, Turin, Italy.,Department of Orthopaedics and Traumatology for Hand, ASST Gaetano Pini, Milan, Italy
| | | | | | - Giacomo Carta
- Department of Clinical and Biological Sciences, University of Turin, Turin, Italy.,Neuroscience Institute Cavalieri Ottolenghi, University of Turin, Turin, Italy
| | | | - Stefano Geuna
- Department of Clinical and Biological Sciences, University of Turin, Turin, Italy.,Neuroscience Institute Cavalieri Ottolenghi, University of Turin, Turin, Italy
| | | | | | - Giulia Ronchi
- Department of Clinical and Biological Sciences, University of Turin, Turin, Italy.,Neuroscience Institute Cavalieri Ottolenghi, University of Turin, Turin, Italy
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29
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Keshavarz M, Wales DJ, Seichepine F, Abdelaziz MEMK, Kassanos P, Li Q, Temelkuran B, Shen H, Yang GZ. Induced neural stem cell differentiation on a drawn fiber scaffold-toward peripheral nerve regeneration. ACTA ACUST UNITED AC 2020; 15:055011. [PMID: 32330920 DOI: 10.1088/1748-605x/ab8d12] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
To achieve regeneration of long sections of damaged nerves, restoration methods such as direct suturing or autologous grafting can be inefficient. Solutions involving biohybrid implants, where neural stem cells are grown in vitro on an active support before implantation, have attracted attention. Using such an approach, combined with recent advancements in microfabrication technology, the chemical and physical environment of cells can be tailored in order to control their behaviors. Herein, a neural stem cell polycarbonate fiber scaffold, fabricated by 3D printing and thermal drawing, is presented. The combined effect of surface microstructure and chemical functionalization using poly-L-ornithine (PLO) and double-walled carbon nanotubes (DWCNTs) on the biocompatibility of the scaffold, induced differentiation of the neural stem cells (NSCs) and channeling of the neural cells was investigated. Upon treatment of the fiber scaffold with a suspension of DWCNTs in PLO (0.039 g l-1) and without recombinants a high degree of differentiation of NSCs into neuronal cells was confirmed by using nestin, galactocerebroside and doublecortin immunoassays. These findings illuminate the potential use of this biohybrid approach for the realization of future nerve regenerative implants.
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Affiliation(s)
- Meysam Keshavarz
- Hamlyn Centre for Robotic Surgery, Faculty of Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
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30
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Raffa P, Scattolini V, Gerli MFM, Perin S, Cui M, De Coppi P, Elvassore N, Caccin P, Luni C, Urciuolo A. Decellularized skeletal muscles display neurotrophic effects in three-dimensional organotypic cultures. Stem Cells Transl Med 2020; 9:1233-1243. [PMID: 32578968 PMCID: PMC7519766 DOI: 10.1002/sctm.20-0090] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Revised: 05/01/2020] [Accepted: 05/07/2020] [Indexed: 12/13/2022] Open
Abstract
Skeletal muscle decellularization allows the generation of natural scaffolds that retain the extracellular matrix (ECM) mechanical integrity, biological activity, and three‐dimensional (3D) architecture of the native tissue. Recent reports showed that in vivo implantation of decellularized muscles supports muscle regeneration in volumetric muscle loss models, including nervous system and neuromuscular junctional homing. Since the nervous system plays pivotal roles during skeletal muscle regeneration and in tissue homeostasis, support of reinnervation is a crucial aspect to be considered. However, the effect of decellularized muscles on reinnervation and on neuronal axon growth has been poorly investigated. Here, we characterized residual protein composition of decellularized muscles by mass spectrometry and we show that scaffolds preserve structural proteins of the ECM of both skeletal muscle and peripheral nervous system. To investigate whether decellularized scaffolds could per se attract neural axons, organotypic sections of spinal cord were cultured three dimensionally in vitro, in presence or in absence of decellularized muscles. We found that neural axons extended from the spinal cord are attracted by the decellularized muscles and penetrate inside the scaffolds upon 3D coculture. These results demonstrate that decellularized scaffolds possess intrinsic neurotrophic properties, supporting their potential use for the treatment of clinical cases where extensive functional regeneration of the muscle is required.
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Affiliation(s)
- Paolo Raffa
- Veneto Institute of Molecular Medicine, Padova, Italy.,Women's and Children's Health Department, University of Padova, Padova, Italy
| | - Valentina Scattolini
- Veneto Institute of Molecular Medicine, Padova, Italy.,Women's and Children's Health Department, University of Padova, Padova, Italy
| | | | - Silvia Perin
- University College London Great Ormond Street Institute of Child Health, London, UK
| | - Meihua Cui
- Shanghai Institute for Advanced Immunochemical Studies (SIAIS), ShanghaiTech University, Shanghai, People's Republic of China
| | - Paolo De Coppi
- University College London Great Ormond Street Institute of Child Health, London, UK
| | - Nicola Elvassore
- Veneto Institute of Molecular Medicine, Padova, Italy.,University College London Great Ormond Street Institute of Child Health, London, UK.,Shanghai Institute for Advanced Immunochemical Studies (SIAIS), ShanghaiTech University, Shanghai, People's Republic of China.,Industrial Engineering Department, University of Padova, Padova, Italy
| | - Paola Caccin
- Biomedical Science Department, University of Padova, Padova, Italy
| | - Camilla Luni
- Shanghai Institute for Advanced Immunochemical Studies (SIAIS), ShanghaiTech University, Shanghai, People's Republic of China
| | - Anna Urciuolo
- University College London Great Ormond Street Institute of Child Health, London, UK.,Institute of Pediatric Research (IRP), Fondazione Città della Speranza, Padova, Italy
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31
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Campos F, Bonhome-Espinosa AB, Chato-Astrain J, Sánchez-Porras D, García-García ÓD, Carmona R, López-López MT, Alaminos M, Carriel V, Rodriguez IA. Evaluation of Fibrin-Agarose Tissue-Like Hydrogels Biocompatibility for Tissue Engineering Applications. Front Bioeng Biotechnol 2020; 8:596. [PMID: 32612984 PMCID: PMC7308535 DOI: 10.3389/fbioe.2020.00596] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 05/15/2020] [Indexed: 12/13/2022] Open
Abstract
Generation of biocompatible and biomimetic tissue-like biomaterials is crucial to ensure the success of engineered substitutes in tissue repair. Natural biomaterials able to mimic the structure and composition of native extracellular matrices typically show better results than synthetic biomaterials. The aim of this study was to perform an in vivo time-course biocompatibility analysis of fibrin-agarose tissue-like hydrogels at the histological, imagenological, hematological, and biochemical levels. Tissue-like hydrogels were produced by a controlled biofabrication process allowing the generation of biomechanically and structurally stable hydrogels. The hydrogels were implanted subcutaneously in 25 male Wistar rats and evaluated after 1, 5, 9, and 12 weeks of in vivo follow-up. At each period of time, animals were analyzed using magnetic resonance imaging (MRI), hematological analyses, and histology of the local area in which the biomaterials were implanted, along with major vital organs (liver, kidney, spleen, and regional lymph nodes). MRI results showed no local or distal alterations during the whole study period. Hematology and biochemistry showed some fluctuation in blood cells values and in some biochemical markers over the time. However, these parameters were progressively normalized in the framework of the homeostasis process. Histological, histochemical, and ultrastructural analyses showed that implantation of fibrin-agarose scaffolds was followed by a progressive process of cell invasion, synthesis of components of the extracellular matrix (mainly, collagen) and neovascularization. Implanted biomaterials were successfully biodegraded and biointegrated at 12 weeks without any associated histopathological alteration in the implanted zone or distal vital organs. In summary, our in vivo study suggests that fibrin-agarose tissue-like hydrogels could have potential clinical usefulness in engineering applications in terms of biosafety and biocompatibility.
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Affiliation(s)
- Fernando Campos
- Department of Histology and Tissue Engineering Group, Faculty of Medicine, University of Granada, Granada, Spain.,Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
| | - Ana Belen Bonhome-Espinosa
- Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain.,Department of Applied Physics, Faculty of Science, University of Granada, Granada, Spain
| | - Jesús Chato-Astrain
- Department of Histology and Tissue Engineering Group, Faculty of Medicine, University of Granada, Granada, Spain.,Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
| | - David Sánchez-Porras
- Department of Histology and Tissue Engineering Group, Faculty of Medicine, University of Granada, Granada, Spain
| | - Óscar Darío García-García
- Department of Histology and Tissue Engineering Group, Faculty of Medicine, University of Granada, Granada, Spain.,Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
| | - Ramón Carmona
- Department of Cell Biology, Faculty of Sciences, University of Granada, Granada, Spain
| | - Modesto T López-López
- Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain.,Department of Applied Physics, Faculty of Science, University of Granada, Granada, Spain
| | - Miguel Alaminos
- Department of Histology and Tissue Engineering Group, Faculty of Medicine, University of Granada, Granada, Spain.,Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
| | - Víctor Carriel
- Department of Histology and Tissue Engineering Group, Faculty of Medicine, University of Granada, Granada, Spain.,Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
| | - Ismael A Rodriguez
- Department of Histology and Tissue Engineering Group, Faculty of Medicine, University of Granada, Granada, Spain.,Department of Histology, Faculty of Dentistry, National University of Cordoba, Cordoba, Argentina
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32
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Chato-Astrain J, Philips C, Campos F, Durand-Herrera D, García-García OD, Roosens A, Alaminos M, Campos A, Carriel V. Detergent-based decellularized peripheral nerve allografts: An in vivo preclinical study in the rat sciatic nerve injury model. J Tissue Eng Regen Med 2020; 14:789-806. [PMID: 32293801 DOI: 10.1002/term.3043] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Revised: 02/15/2020] [Accepted: 03/23/2020] [Indexed: 12/24/2022]
Abstract
Nerve autograft is the gold standard technique to repair critical nerve defects, but efficient alternatives are needed. The present study evaluated the suitability of our novel Roosens-based (RSN) decellularized peripheral nerve allografts (DPNAs) in the repair of 10-mm sciatic nerve defect in rats at the functional and histological levels after 12 weeks. These DPNAs were compared with the autograft technique (AUTO) and Sondell (SD) or Hudson (HD) based DPNAs. Clinical and functional assessments demonstrated a partial regeneration in all operated animals. RSN-based DPNAs results were comparable with SD and HD groups and closely comparable with the AUTO group without significant differences (p > .05). Overall hematological studies confirmed the biocompatibility of grafted DPNAs. In addition, biochemistry revealed some signs of muscle affection in all operated animals. These results were confirmed by the loss of weight and volume of the muscle and by muscle histology, especially in DPNAs. Histology of repaired nerves confirmed an active nerve tissue regeneration and partial myelination along with the implanted grafts, being the results obtained with HD and RSN-based DPNAs comparable with the AUTO group. Finally, this in vivo study suggests that our novel RSN-based DPNAs supported a comparable tissue regeneration, along the 10-mm nerve gap, after 12-week follow-up to HD DPNAs, and both were superior to SD group and closely comparable with autograft technique. However, further improvements are needed to overcome the efficacy of the nerve autograft technique.
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Affiliation(s)
- Jesús Chato-Astrain
- Department of Histology, Tissue Engineering Group, Faculty of Medicine, University of Granada, Granada, Spain.,Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain.,Doctoral program in Biomedicine, University of Granada, Granada, Spain
| | - Charlot Philips
- Tissue Engineering Group, Department of Human Structure and Repair, Ghent University, Ghent, Belgium
| | - Fernando Campos
- Department of Histology, Tissue Engineering Group, Faculty of Medicine, University of Granada, Granada, Spain.,Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
| | - Daniel Durand-Herrera
- Department of Histology, Tissue Engineering Group, Faculty of Medicine, University of Granada, Granada, Spain.,Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
| | - Oscar D García-García
- Department of Histology, Tissue Engineering Group, Faculty of Medicine, University of Granada, Granada, Spain
| | - Annelies Roosens
- School of Technology, Chemistry, Odisee University College, Ghent, Belgium
| | - Miguel Alaminos
- Department of Histology, Tissue Engineering Group, Faculty of Medicine, University of Granada, Granada, Spain.,Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
| | - Antonio Campos
- Department of Histology, Tissue Engineering Group, Faculty of Medicine, University of Granada, Granada, Spain.,Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
| | - Victor Carriel
- Department of Histology, Tissue Engineering Group, Faculty of Medicine, University of Granada, Granada, Spain.,Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
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33
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Fu XM, Wang Y, Fu WL, Liu DH, Zhang CY, Wang QL, Tong XJ. The Combination of Adipose-derived Schwann-like Cells and Acellular Nerve Allografts Promotes Sciatic Nerve Regeneration and Repair through the JAK2/STAT3 Signaling Pathway in Rats. Neuroscience 2019; 422:134-145. [PMID: 31682951 DOI: 10.1016/j.neuroscience.2019.10.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Revised: 10/05/2019] [Accepted: 10/08/2019] [Indexed: 02/06/2023]
Abstract
Schwann cells (SCs) combined with acellular nerve allografts (ANAs) effectively promote the regeneration and repair of peripheral nerves, but the exact mechanism has not been fully elucidated. However, the disadvantages of SCs include their limited source and slow rate of expansion in vitro. Previous studies have found that adipose-derived stem cells have the ability to differentiate into Schwann-like cells. Therefore, we speculated that Schwann-like cells combined with ANAs could profoundly facilitate nerve regeneration and repair. The aim of the present study was to investigate the cellular and molecular mechanisms of regeneration and repair. In this study, tissue-engineered nerves were first constructed by adipose-derived Schwann-like cells and ANAs to bridge missing sciatic nerves. Then, the rats were randomly divided into five groups (n = 12 per group): a Control group; a Model group; an ADSC group; an SC-L group; and a DMEM group. Twelve weeks postsurgery, behavioral function tests and molecular biological techniques were used to evaluate the function of regenerated nerves and the relevant molecular mechanisms after sciatic nerve injury (SNI). The results showed that adipose-derived Schwann-like cells combined with ANAs markedly promoted sciatic nerve regeneration and repair. These findings also demonstrated that the expression of neurotrophic factors (NFs) was increased, and the expression of Janus activated kinase2 (JAK2)/P-JAK2, signal transducer and activator of transcription-3 (STAT3)/P-STAT3 was decreased in the spinal cord after SNI. Therefore, these results suggested that highly expressed NFs in the spinal cord could promote nerve regeneration and repair by inhibiting activation of the JAK2/STAT3 signaling pathway.
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Affiliation(s)
- Xiu-Mei Fu
- Department of Anatomy, College of Basic Medical Sciences, Chengde Medical University, Chengde, Hebei 067000, China.
| | - Ying Wang
- Research Institute of Neural Tissue Engineering, Mudanjiang College of Medicine, Mudanjiang 157011, China
| | - Wen-Liang Fu
- Department of Anatomy, College of Basic Medical Sciences, Chengde Medical University, Chengde, Hebei 067000, China
| | - Dong-Hui Liu
- Department of Anatomy, College of Basic Medical Sciences, Chengde Medical University, Chengde, Hebei 067000, China
| | - Cheng-Yun Zhang
- Department of Anatomy, College of Basic Medical Sciences, Chengde Medical University, Chengde, Hebei 067000, China
| | - Qiao-Ling Wang
- Department of Anatomy, College of Basic Medical Sciences, Shenyang Medical College, Shenyang, Liaoning 110034, China
| | - Xiao-Jie Tong
- Department of Anatomy, College of Basic Medical Sciences, China Medical University, Shenyang, Liaoning 110122, China
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34
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Philips C, Cornelissen M, Carriel V. Evaluation methods as quality control in the generation of decellularized peripheral nerve allografts. J Neural Eng 2019; 15:021003. [PMID: 29244032 DOI: 10.1088/1741-2552/aaa21a] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Nowadays, the high incidence of peripheral nerve injuries and the low success ratio of surgical treatments are driving research to the generation of novel alternatives to repair critical nerve defects. In this sense, tissue engineering has emerged as a possible alternative with special attention to decellularization techniques. Tissue decellularization offers the possibility to obtain a cell-free, natural extracellular matrix (ECM), characterized by an adequate 3D organization and proper molecular composition to repair different tissues or organs, including peripheral nerves. One major problem, however, is that there are no standard quality control methods to evaluate decellularized tissues. Therefore, in this review, a brief description of current strategies for peripheral nerve repair is given, followed by an overview of different decellularization methods used for peripheral nerves. Furthermore, we extensively discuss the available and currently used methods to demonstrate the success of tissue decellularization in terms of the cell removal, preservation of essential ECM molecules and maintenance or modification of biomechanical properties. Finally, orientative guidelines for the evaluation of decellularized peripheral nerve allografts are proposed.
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Affiliation(s)
- Charlot Philips
- Tissue Engineering and Biomaterials Group, Department of Basic Medical Sciences, Faculty of Medicine and Health Sciences, Ghent University, De Pintelaan 185, B-9000 Ghent, Belgium
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35
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Buckenmeyer MJ, Meder TJ, Prest TA, Brown BN. Decellularization techniques and their applications for the repair and regeneration of the nervous system. Methods 2019; 171:41-61. [PMID: 31398392 DOI: 10.1016/j.ymeth.2019.07.023] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 07/11/2019] [Accepted: 07/26/2019] [Indexed: 01/15/2023] Open
Abstract
A variety of surgical and non-surgical approaches have been used to address the impacts of nervous system injuries, which can lead to either impairment or a complete loss of function for affected patients. The inherent ability of nervous tissues to repair and/or regenerate is dampened due to irreversible changes that occur within the tissue remodeling microenvironment following injury. Specifically, dysregulation of the extracellular matrix (i.e., scarring) has been suggested as one of the major factors that can directly impair normal cell function and could significantly alter the regenerative potential of these tissues. A number of tissue engineering and regenerative medicine-based approaches have been suggested to intervene in the process of remodeling which occurs following injury. Decellularization has become an increasingly popular technique used to obtain acellular scaffolds, and their derivatives (hydrogels, etc.), which retain tissue-specific components, including critical structural and functional proteins. These advantageous characteristics make this approach an intriguing option for creating materials capable of stimulating the sensitive repair mechanisms associated with nervous system injuries. Over the past decade, several diverse decellularization methods have been implemented specifically for nervous system applications in an attempt to carefully remove cellular content while preserving tissue morphology and composition. Each application-based decellularized ECM product requires carefully designed treatments that preserve the unique biochemical signatures associated within each tissue type to stimulate the repair of brain, spinal cord, and peripheral nerve tissues. Herein, we review the decellularization techniques that have been applied to create biomaterials with the potential to promote the repair and regeneration of tissues within the central and peripheral nervous system.
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Affiliation(s)
- Michael J Buckenmeyer
- Department of Bioengineering, University of Pittsburgh, 450 Technology Drive, Pittsburgh, PA 15219, United States.
| | - Tyler J Meder
- Department of Bioengineering, University of Pittsburgh, 450 Technology Drive, Pittsburgh, PA 15219, United States.
| | - Travis A Prest
- Department of Bioengineering, University of Pittsburgh, 450 Technology Drive, Pittsburgh, PA 15219, United States.
| | - Bryan N Brown
- Department of Bioengineering, University of Pittsburgh, 450 Technology Drive, Pittsburgh, PA 15219, United States; McGowan Institute for Regenerative Medicine, University of Pittsburgh, 450 Technology Drive, Pittsburgh, PA 15219, United States; Department of Obstetrics, Gynecology and Reproductive Sciences, Magee-Womens Research Institute, University of Pittsburgh, 450 Technology Drive, Pittsburgh, PA 15219, United States.
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36
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Carriel V, Vizcaíno-López G, Chato-Astrain J, Durand-Herrera D, Alaminos M, Campos A, Sánchez-Montesinos I, Campos F. Scleral surgical repair through the use of nanostructured fibrin/agarose-based films in rabbits. Exp Eye Res 2019; 186:107717. [PMID: 31265829 DOI: 10.1016/j.exer.2019.107717] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 06/19/2019] [Accepted: 06/28/2019] [Indexed: 12/15/2022]
Abstract
Scleral defects can result as a consequence of trauma, infectious diseases or cancer and surgical repair with allogeneic scleral grafts can be required. However, this method has limitations and novel alternatives are needed. Here, the efficacy of acellular nanostructured fibrin-agarose hydrogel-based substitutes (NFAH) in the repair of scleral defects in rabbits was studied. For this, scleral defects of 5-mm diameter were made on 18 adult-male New Zealand rabbits and repaired with acellular NFAH, NFAH crosslinked with genipin (NFAH-GP) or glutaraldehyde (NFAH-GA), allogeneic scleral grafts as control (C-CTR) or not repaired (negative control N-CTR) (n = 3 each). Macroscopic and histological analyses were performed after 40-days. Macroscopy confirmed the repair of all defects in a comparable manner than the C-CTR. Histology showed no degradation nor integration in C-CTR while NFAH-GP and NFAH-GA biomaterials were encapsulated by connective and inflammatory tissues with partial biodegradation. The NFAH were fully biodegraded and replaced by a loose connective tissue and sclera covering the defects. This in vivo study demonstrated that the NFAH are a promising biocompatible and pro-regenerative alternative to the use of allogeneic cadaveric grafts. However, large defects and long-term studies are needed to demonstrate the potential clinical usefulness of these substitutes.
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Affiliation(s)
- Víctor Carriel
- Department of Histology & Tissue Engineering Group, Faculty of Medicine, University of Granada, Spain; Instituto de Investigación Biosanitaria Ibs.GRANADA, Spain.
| | - Gerson Vizcaíno-López
- Doctoral Program in Biomedicine, University of Granada, Spain; Department of Histology, Autonomous University of Santo Domingo, Dominican Republic
| | - Jesús Chato-Astrain
- Department of Histology & Tissue Engineering Group, Faculty of Medicine, University of Granada, Spain
| | - Daniel Durand-Herrera
- Department of Histology & Tissue Engineering Group, Faculty of Medicine, University of Granada, Spain
| | - Miguel Alaminos
- Department of Histology & Tissue Engineering Group, Faculty of Medicine, University of Granada, Spain; Instituto de Investigación Biosanitaria Ibs.GRANADA, Spain
| | - Antonio Campos
- Department of Histology & Tissue Engineering Group, Faculty of Medicine, University of Granada, Spain; Instituto de Investigación Biosanitaria Ibs.GRANADA, Spain
| | - Indalecio Sánchez-Montesinos
- Instituto de Investigación Biosanitaria Ibs.GRANADA, Spain; Department of Human Anatomy & Embryology, Faculty of Medicine, University of Granada, Spain.
| | - Fernando Campos
- Department of Histology & Tissue Engineering Group, Faculty of Medicine, University of Granada, Spain; Instituto de Investigación Biosanitaria Ibs.GRANADA, Spain
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37
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Ronchi G, Morano M, Fregnan F, Pugliese P, Crosio A, Tos P, Geuna S, Haastert-Talini K, Gambarotta G. The Median Nerve Injury Model in Pre-clinical Research - A Critical Review on Benefits and Limitations. Front Cell Neurosci 2019; 13:288. [PMID: 31316355 PMCID: PMC6609919 DOI: 10.3389/fncel.2019.00288] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Accepted: 06/13/2019] [Indexed: 12/21/2022] Open
Abstract
The successful introduction of innovative treatment strategies into clinical practise strongly depends on the availability of effective experimental models and their reliable pre-clinical assessment. Considering pre-clinical research for peripheral nerve repair and reconstruction, the far most used nerve regeneration model in the last decades is the sciatic nerve injury and repair model. More recently, the use of the median nerve injury and repair model has gained increasing attention due to some significant advantages it provides compared to sciatic nerve injury. Outstanding advantages are the availability of reliable behavioural tests for assessing posttraumatic voluntary motor recovery and a much lower impact on the animal wellbeing. In this article, the potential application of the median nerve injury and repair model in pre-clinical research is reviewed. In addition, we provide a synthetic overview of a variety of methods that can be applied in this model for nerve regeneration assessment. This article is aimed at helping researchers in adequately adopting this in vivo model for pre-clinical evaluation of peripheral nerve reconstruction as well as for interpreting the results in a translational perspective.
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Affiliation(s)
- Giulia Ronchi
- Department of Clinical and Biological Sciences, University of Turin, Turin, Italy.,Neuroscience Institute Cavalieri Ottolenghi Foundation (NICO), University of Turin, Turin, Italy
| | - Michela Morano
- Department of Clinical and Biological Sciences, University of Turin, Turin, Italy.,Neuroscience Institute Cavalieri Ottolenghi Foundation (NICO), University of Turin, Turin, Italy
| | - Federica Fregnan
- Department of Clinical and Biological Sciences, University of Turin, Turin, Italy.,Neuroscience Institute Cavalieri Ottolenghi Foundation (NICO), University of Turin, Turin, Italy
| | - Pierfrancesco Pugliese
- Dipartimento di Chirurgia Generale e Specialistica, Azienda Ospedaliera Universitaria, Ancona, Italy
| | - Alessandro Crosio
- UO Microchirurgia e Chirurgia della Mano, Ospedale Gaetano Pini, Milan, Italy
| | - Pierluigi Tos
- UO Microchirurgia e Chirurgia della Mano, Ospedale Gaetano Pini, Milan, Italy
| | - Stefano Geuna
- Department of Clinical and Biological Sciences, University of Turin, Turin, Italy.,Neuroscience Institute Cavalieri Ottolenghi Foundation (NICO), University of Turin, Turin, Italy
| | - Kirsten Haastert-Talini
- Institute of Neuroanatomy and Cell Biology, Hannover Medical School, Hanover, Germany.,Center for Systems Neuroscience (ZSN) Hannover, Hanover, Germany
| | - Giovanna Gambarotta
- Department of Clinical and Biological Sciences, University of Turin, Turin, Italy
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38
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Shin YH, Park SY, Kim JK. Comparison of systematically combined detergent and nuclease-based decellularization methods for acellular nerve graft: An ex vivo characterization and in vivo evaluation. J Tissue Eng Regen Med 2019; 13:1241-1252. [PMID: 31050871 DOI: 10.1002/term.2874] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2018] [Revised: 02/24/2019] [Accepted: 04/29/2019] [Indexed: 12/22/2022]
Abstract
Little consensus exists regarding which decellularization technique best removes the cellular components while maintaining structural integrity. We aimed to identify the most efficient and safest decellularization method by combining previously established chemical (detergent based) and biological (nuclease based) methods in a systematic manner. Sixty sciatic nerves were harvested from Sprague-Dawley rats and prepared in 120 nerve fragments with 1-cm length. Nerve fragments were randomly divided into six groups and decellularized with six different methods: A, nonionic detergent + amphoteric detergent; B, nonionic detergent + anionic detergent; C, anionic detergent + amphoteric detergent; D, nonionic detergent + nuclease; E, amphoteric detergent + nuclease; and F, anionic detergent + nuclease. The remaining cellular components were evaluated with H&E, DAPI, and S-100 immunohistochemical staining, and DNA content was measured in each sample. The remaining extracellular matrix (ECM) integrity was evaluated with H&E, Masson's trichrome, periodic acid-Schiff, Luxol fast blue, and laminin immunohistochemical staining, and collagen content was measured in each sample. The amphoteric detergent + nuclease method was the best protocol for both cell removal and ECM preservation. In the in vivo study, the nerve allograft that was decellularized with amphoteric detergent + nuclease showed an inferior recovery rate based on the tibialis anterior muscle weight to autograft, but considerable recovery was observed. In conclusion, among the possible systematic combinations of detergent- and nuclease-based methods, the combination of amphoteric detergent and nuclease is currently the most suitable for nerve decellularization in terms of adequate cell removal and sufficient preservation of the ECM.
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Affiliation(s)
- Young Ho Shin
- Department of Orthopedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Suk Young Park
- Department of Orthopedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Jae Kwang Kim
- Department of Orthopedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
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39
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Masgutov R, Masgutova G, Mullakhmetova A, Zhuravleva M, Shulman A, Rogozhin A, Syromiatnikova V, Andreeva D, Zeinalova A, Idrisova K, Allegrucci C, Kiyasov A, Rizvanov A. Adipose-Derived Mesenchymal Stem Cells Applied in Fibrin Glue Stimulate Peripheral Nerve Regeneration. Front Med (Lausanne) 2019; 6:68. [PMID: 31024916 PMCID: PMC6465797 DOI: 10.3389/fmed.2019.00068] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Accepted: 03/19/2019] [Indexed: 01/01/2023] Open
Abstract
Mesenchymal stem cells (MSCs) hold a great promise for cell therapy. To date, they represent one of the best choices for the treatment of post-traumatic injuries of the peripheral nervous system. Although autologous can be easily transplanted in the injured area, clinical advances in this filed have been impaired by lack of preservation of graft cells into the injury area after transplantation. Indeed, cell viability is not retained after injection into the blood stream, and cells injected directly into the area of injury either are washed off or inhibit regeneration through scar formation and neuroma development. This study proposes a new way of MSCs delivery to the area of traumatic injury by using fibrin glue, which not only fixes cells at the site of application but also provides extracellular matrix support. Using a sciatic nerve injury model, MSC derived from adipose tissue embedded in fibrin glue were able to enter the nerve and migrate mainly retrogradely after transplantation. They also demonstrated a neuroprotective effect on DRG L5 sensory neurons and stimulated axon growth and myelination. Post-traumatic changes of the sensory neuron phenotype were also improved. Importantly, MSCs stimulated nerve angiogenesis and motor function recovery. Therefore, our data suggest that MSC therapy using fibrin glue is a safe and efficient method of cell transplantation in cases of sciatic nerve injury, and that this method of delivery of regeneration stimulants could be beneficial for the successful treatment of other central and peripheral nervous system conditions.
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Affiliation(s)
- Ruslan Masgutov
- OpenLab Gene and Cell Technologies, Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
- Department of Orthopaedics, Republic Clinical Hospital, Kazan, Russia
| | - Galina Masgutova
- OpenLab Gene and Cell Technologies, Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
| | - Adelya Mullakhmetova
- OpenLab Gene and Cell Technologies, Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
| | - Margarita Zhuravleva
- OpenLab Gene and Cell Technologies, Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
| | - Anna Shulman
- Scientific Department, Republic Clinical Hospital, Kazan, Russia
| | - Alexander Rogozhin
- OpenLab Gene and Cell Technologies, Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
- Department of Neurology, Kazan State Medical Academy, Branch of Russian Medical Academy of Postgraduate Education, Kazan, Russia
| | - Valeriya Syromiatnikova
- OpenLab Gene and Cell Technologies, Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
| | - Dina Andreeva
- OpenLab Gene and Cell Technologies, Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
| | - Alina Zeinalova
- OpenLab Gene and Cell Technologies, Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
| | - Kamilla Idrisova
- OpenLab Gene and Cell Technologies, Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
| | - Cinzia Allegrucci
- School of Veterinary Medicine and Science, University of Nottingham, Nottingham, United Kingdom
| | - Andrey Kiyasov
- OpenLab Gene and Cell Technologies, Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
| | - Albert Rizvanov
- OpenLab Gene and Cell Technologies, Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
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40
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Ma Y, Dong L, Zhou D, Li L, Zhang W, Zhen Y, Wang T, Su J, Chen D, Mao C, Wang X. Extracellular vesicles from human umbilical cord mesenchymal stem cells improve nerve regeneration after sciatic nerve transection in rats. J Cell Mol Med 2019; 23:2822-2835. [PMID: 30772948 PMCID: PMC6433678 DOI: 10.1111/jcmm.14190] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 12/21/2018] [Accepted: 01/10/2019] [Indexed: 01/03/2023] Open
Abstract
Peripheral nerve injury results in limited nerve regeneration and severe functional impairment. Mesenchymal stem cells (MSCs) are a remarkable tool for peripheral nerve regeneration. The involvement of human umbilical cord MSC-derived extracellular vesicles (hUCMSC-EVs) in peripheral nerve regeneration, however, remains unknown. In this study, we evaluated functional recovery and nerve regeneration in rats that received hUCMSC-EV treatment after nerve transection. We observed that hUCMSC-EV treatment promoted the recovery of motor function and the regeneration of axons; increased the sciatic functional index; resulted in the generation of numerous axons and of several Schwann cells that surrounded individual axons; and attenuated the atrophy of the gastrocnemius muscle. hUCMSC-EVs aggregated to rat nerve defects, down-regulated interleukin (IL)-6 and IL-1β, up-regulated IL-10 and modulated inflammation in the injured nerve. These effects likely contributed to the promotion of nerve regeneration. Our findings indicate that hUCMSC-EVs can improve functional recovery and nerve regeneration by providing a favourable microenvironment for nerve regeneration. Thus, hUCMSC-EVs have considerable potential for application in the treatment of peripheral nerve injury.
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Affiliation(s)
- Yongbin Ma
- Department of Central LaboratoryThe Affiliated Hospital of Jiangsu UniversityZhenjiangChina
- Department of Neurology LaboratoryJintan Hospital, Jiangsu UniversityJintanChina
| | - Liyang Dong
- Department of Nuclear Medicine and Institute of OncologyThe Affiliated Hospital of Jiangsu UniversityZhenjiangChina
| | - Dan Zhou
- Department of Neurology LaboratoryJintan Hospital, Jiangsu UniversityJintanChina
| | - Li Li
- Department of Central LaboratoryThe Affiliated Hospital of Jiangsu UniversityZhenjiangChina
| | - Wenzhe Zhang
- Department of Central LaboratoryThe Affiliated Hospital of Jiangsu UniversityZhenjiangChina
| | - Yu Zhen
- Department of Central LaboratoryThe Affiliated Hospital of Jiangsu UniversityZhenjiangChina
| | - Ting Wang
- Department of Central LaboratoryThe Affiliated Hospital of Jiangsu UniversityZhenjiangChina
| | - Jianhua Su
- Department of Neurology LaboratoryJintan Hospital, Jiangsu UniversityJintanChina
| | - Deyu Chen
- Department of Nuclear Medicine and Institute of OncologyThe Affiliated Hospital of Jiangsu UniversityZhenjiangChina
| | - Chaoming Mao
- Department of Nuclear Medicine and Institute of OncologyThe Affiliated Hospital of Jiangsu UniversityZhenjiangChina
| | - Xuefeng Wang
- Department of Central LaboratoryThe Affiliated Hospital of Jiangsu UniversityZhenjiangChina
- Department of Neurology LaboratoryJintan Hospital, Jiangsu UniversityJintanChina
- Department of Nuclear Medicine and Institute of OncologyThe Affiliated Hospital of Jiangsu UniversityZhenjiangChina
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41
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Park S, Loke G, Fink Y, Anikeeva P. Flexible fiber-based optoelectronics for neural interfaces. Chem Soc Rev 2019; 48:1826-1852. [PMID: 30815657 DOI: 10.1039/c8cs00710a] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Neurological and psychiatric conditions pose an increasing socioeconomic burden on our aging society. Our ability to understand and treat these conditions relies on the development of reliable tools to study the dynamics of the underlying neural circuits. Despite significant progress in approaches and devices to sense and modulate neural activity, further refinement is required on the spatiotemporal resolution, cell-type selectivity, and long-term stability of neural interfaces. Guided by the principles of neural transduction and by the materials properties of the neural tissue, recent advances in neural interrogation approaches rely on flexible and multifunctional devices. Among these approaches, multimaterial fibers have emerged as integrated tools for sensing and delivering of multiple signals to and from the neural tissue. Fiber-based neural probes are produced by thermal drawing process, which is the manufacturing approach used in optical fiber fabrication. This technology allows straightforward incorporation of multiple functional components into microstructured fibers at the level of their macroscale models, preforms, with a wide range of geometries. Here we will introduce the multimaterial fiber technology, its applications in engineering fields, and its adoption for the design of multifunctional and flexible neural interfaces. We will discuss examples of fiber-based neural probes tailored to the electrophysiological recording, optical neuromodulation, and delivery of drugs and genes into the rodent brain and spinal cord, as well as their emerging use for studies of nerve growth and repair.
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Affiliation(s)
- Seongjun Park
- School of Engineering, Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
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42
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Modulation of cell-cell interactions for neural tissue engineering: Potential therapeutic applications of cell adhesion molecules in nerve regeneration. Biomaterials 2019; 197:327-344. [DOI: 10.1016/j.biomaterials.2019.01.030] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 12/08/2018] [Accepted: 01/20/2019] [Indexed: 12/21/2022]
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43
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Boni R, Ali A, Shavandi A, Clarkson AN. Current and novel polymeric biomaterials for neural tissue engineering. J Biomed Sci 2018; 25:90. [PMID: 30572957 PMCID: PMC6300901 DOI: 10.1186/s12929-018-0491-8] [Citation(s) in RCA: 183] [Impact Index Per Article: 30.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Accepted: 11/27/2018] [Indexed: 12/12/2022] Open
Abstract
The nervous system is a crucial component of the body and damages to this system, either by of injury or disease, can result in serious or potentially lethal consequences. Restoring the damaged nervous system is a great challenge due to the complex physiology system and limited regenerative capacity.Polymers, either synthetic or natural in origin, have been extensively evaluated as a solution for restoring functions in damaged neural tissues. Polymers offer a wide range of versatility, in particular regarding shape and mechanical characteristics, and their biocompatibility is unmatched by other biomaterials, such as metals and ceramics. Several studies have shown that polymers can be shaped into suitable support structures, including nerve conduits, scaffolds, and electrospun matrices, capable of improving the regeneration of damaged neural tissues. In general, natural polymers offer the advantage of better biocompatibility and bioactivity, while synthetic or non-natural polymers have better mechanical properties and structural stability. Often, combinations of the two allow for the development of polymeric conduits able to mimic the native physiological environment of healthy neural tissues and, consequently, regulate cell behaviour and support the regeneration of injured nervous tissues.Currently, most of neural tissue engineering applications are in pre-clinical study, in particular for use in the central nervous system, however collagen polymer conduits aimed at regeneration of peripheral nerves have already been successfully tested in clinical trials.This review highlights different types of natural and synthetic polymers used in neural tissue engineering and their advantages and disadvantages for neural regeneration.
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Affiliation(s)
- Rossana Boni
- Bioengineering Research Team, Centre for Bioengineering and Nanomedicine, Department of Food Science, University of Otago, PO Box 56, Dunedin, 9054 New Zealand
| | - Azam Ali
- Bioengineering Research Team, Centre for Bioengineering and Nanomedicine, Department of Food Science, University of Otago, PO Box 56, Dunedin, 9054 New Zealand
| | - Amin Shavandi
- Bioengineering Research Team, Centre for Bioengineering and Nanomedicine, Department of Food Science, University of Otago, PO Box 56, Dunedin, 9054 New Zealand
- BioMatter-Biomass Transformation Lab (BTL), École interfacultaire de Bioingénieurs (EIB), École polytechnique de Bruxelles, Université Libre de Bruxelles, Avenue F.D. Roosevelt, 50 - CP 165/61, 1050 Brussels, Belgium
| | - Andrew N. Clarkson
- Department of Anatomy, Brain Health Research Centre and Brain Research New Zealand, University of Otago, PO Box 56, Dunedin, 9054 New Zealand
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44
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Chato-Astrain J, Campos F, Roda O, Miralles E, Durand-Herrera D, Sáez-Moreno JA, García-García S, Alaminos M, Campos A, Carriel V. In vivo Evaluation of Nanostructured Fibrin-Agarose Hydrogels With Mesenchymal Stem Cells for Peripheral Nerve Repair. Front Cell Neurosci 2018; 12:501. [PMID: 30627086 PMCID: PMC6309160 DOI: 10.3389/fncel.2018.00501] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Accepted: 12/04/2018] [Indexed: 12/12/2022] Open
Abstract
The regenerative capability of peripheral nerves is very limited, and several strategies have been proposed to increase nerve regeneration. In the present work, we have analyzed the in vivo usefulness of a novel nanostructured fibrin-agarose bio-artificial nerve substitute (Nano) used alone or in combination with NeuraGen® collagen type I conduits (Coll-Nano) in laboratory rats with a 10-mm sciatic nerve defect. Control animals were subjected to the gold-standard autograft technique (Auto). Results first demonstrated that the percentage of self-amputations was lower in Nano and Coll-Nano groups as compared to the Auto group. Neurotrophic ulcers were more abundant in the Auto group (60%, with 66.6% of them being >2-mm) than Nano and Coll-Nano groups (0%) at 4 weeks, although Nano showed more ulcers after 12 weeks. Foot length was significantly altered in Auto animals due to neurogenic retraction, but not in Nano and Coll-Nano groups after 12 weeks. At the functional level, all animals showed a partial sensory recovery as determined by the pinch test, especially in Nano and Auto groups, but did not reach the levels of native animals. Toe-spread test revealed a partial motor function recovery only in Nano animals at 4 weeks and Auto and Nano at 12 weeks. Electromyography showed clear denervation signs in all experimental groups, with few differences between Auto and Nano animals. After 12 weeks, an important denervation decrease and an increase of the reinnervation process was found in Auto and Nano groups, with no differences between these groups. Histological analyses demonstrated an active peripheral nerve regeneration process with newly formed peripheral nerve fascicles showing S-100, GAP-43 and myelin in all experimental groups. The peripheral nerve regeneration process was more abundant in Auto group, followed by Nano group, and both were better than Coll-Nano group. Muscle histology confirmed the electromyography results and showed some atrophy and fibrosis signs and an important weight and volume loss in all groups, especially in the Coll-Nano group (56.8% weight and 60.4% volume loss). All these results suggest that the novel Nano substitutes used in in vivo were able to contribute to bridge a 10-mm peripheral nerve defect in rats.
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Affiliation(s)
- Jesús Chato-Astrain
- Department of Histology, Tissue Engineering Group, Faculty of Medicine, University of Granada, Granada, Spain.,Doctoral Program in Biomedicine, Faculty of Medicine, University of Granada, Granada, Spain
| | - Fernando Campos
- Department of Histology, Tissue Engineering Group, Faculty of Medicine, University of Granada, Granada, Spain.,Instituto de Investigación Biosanitaria Ibs. GRANADA, Granada, Spain
| | - Olga Roda
- Instituto de Investigación Biosanitaria Ibs. GRANADA, Granada, Spain.,Department of Anatomy and Embryology, Faculty of Medicine, University of Granada, Granada, Spain
| | - Esther Miralles
- Division of Clinical Neurophysiology, University Hospital San Cecilio, Granada, Spain
| | - Daniel Durand-Herrera
- Department of Histology, Tissue Engineering Group, Faculty of Medicine, University of Granada, Granada, Spain
| | | | - Salomé García-García
- Division of Clinical Neurophysiology, University Hospital San Cecilio, Granada, Spain
| | - Miguel Alaminos
- Department of Histology, Tissue Engineering Group, Faculty of Medicine, University of Granada, Granada, Spain.,Instituto de Investigación Biosanitaria Ibs. GRANADA, Granada, Spain
| | - Antonio Campos
- Department of Histology, Tissue Engineering Group, Faculty of Medicine, University of Granada, Granada, Spain.,Instituto de Investigación Biosanitaria Ibs. GRANADA, Granada, Spain
| | - Víctor Carriel
- Department of Histology, Tissue Engineering Group, Faculty of Medicine, University of Granada, Granada, Spain.,Instituto de Investigación Biosanitaria Ibs. GRANADA, Granada, Spain
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45
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Liu Y, Yu F, Zhang B, Zhou M, Bei Y, Zhang Y, Tang J, Yang Y, Huang Y, Xiang Q, Zhao Y, Liang Q, Liu Y. Improving the protective effects of aFGF for peripheral nerve injury repair using sulfated chitooligosaccharides. Asian J Pharm Sci 2018; 14:511-520. [PMID: 32104478 PMCID: PMC7032102 DOI: 10.1016/j.ajps.2018.09.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2018] [Revised: 08/17/2018] [Accepted: 09/27/2018] [Indexed: 01/07/2023] Open
Abstract
Injury to the peripheral nerves can result in temporary or life-long neuronal dysfunction and subsequent economic or social disability. Acidic fibroblast growth factor (aFGF) promotes the growth and survival of neurons and is a possible treatment for peripheral nerve injury. Yet, the actual therapeutic utility of aFGF is limited by its short half-life and instability in vivo. In the present study, we prepared sulfated chitooligosaccharides (SCOS), which have heparin-like properties, to improve the bioactivity of aFGF. We investigated the protective effects of SCOS with or without aFGF on RSC96 cells exposed to Na2S2O4 hypoxia/reoxygenation injury. Cell viability was measured by MTT assay and cytotoxicity induced by Na2S2O4 was assessed by lactate dehydrogenase (LDH) release into the culture medium. Pretreatment with aFGF and SCOS dramatically decreased LDH release after injury compared to pretreatment with aFGF or SCOS alone. We subsequently prepared an aFGF/SCOS thermo-sensitive hydrogel with poloxamer and examined its effects in vivo. Paw withdrawal thresholds and thermal withdrawal latencies were measured in rats with sciatic nerve injury. Local injection of the aFGF/SCOS hydrogels (aFGF: 40, 80 µg/kg) increased the efficiency of sciatic nerve repair compared to aFGF (80 µg/kg) hydrogel alone. Especially aFGF/SCOS thermo-sensitive hydrogel decreased paw withdrawal thresholds from 117.75 ± 8.38 (g, 4 d) to 65.74 ± 3.39 (g, 10 d), but aFGF alone group were 140.58 ± 27.54 (g, 4 d) to 89.12 ± 5.60 (g, 10 d) (aFGF dose was 80 µg/kg, P < 0.05, n = 8). The thermal withdrawal latencies decreased from 11.61 ± 2.26 (s, 4 d) to 2.37 ±0.67 (s, 10 d). However, aFGF alone group were from 17.69 ± 1.47 (s, 4 d) to 4.65 ± 1.73 (s, 10 d) (P < 0.05, n = 8). Furthermore, the aFGF/SCOS hydrogels also exhibited good biocompatibility in mice. In summary, SCOS improved the protective effects of aFGF in RSC96 cells injured with Na2S2O4 and increased the efficiency of nerve repair and recovery of function in rats with sciatic nerve injury. These findings pave an avenue for the development of novel prophylactic and therapeutic strategies for peripheral nerve injury.
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Affiliation(s)
- Yanmei Liu
- Institute of Biomedicine and Guangdong Provincial Key Laboratory of Bioengineering Medicine, Jinan University, Guangzhou 510632, China
| | - Fenglin Yu
- Institute of Biomedicine and Guangdong Provincial Key Laboratory of Bioengineering Medicine, Jinan University, Guangzhou 510632, China
| | - Beibei Zhang
- Department of Pharmacy, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Meng Zhou
- College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Yu Bei
- College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Yifan Zhang
- Institute of Biomedicine and Guangdong Provincial Key Laboratory of Bioengineering Medicine, Jinan University, Guangzhou 510632, China
| | - Jianzhong Tang
- Institute of Biomedicine and Guangdong Provincial Key Laboratory of Bioengineering Medicine, Jinan University, Guangzhou 510632, China
| | - Yan Yang
- Institute of Biomedicine and Guangdong Provincial Key Laboratory of Bioengineering Medicine, Jinan University, Guangzhou 510632, China
| | - Yadong Huang
- Institute of Biomedicine and Guangdong Provincial Key Laboratory of Bioengineering Medicine, Jinan University, Guangzhou 510632, China.,College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Qi Xiang
- Institute of Biomedicine and Guangdong Provincial Key Laboratory of Bioengineering Medicine, Jinan University, Guangzhou 510632, China.,College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Yueping Zhao
- Department of Stomatology, Jinan University Medical College, Guangzhou 510632, China
| | - Qian Liang
- Department of Stomatology, Jinan University Medical College, Guangzhou 510632, China
| | - Yang Liu
- Department of Stomatology, Jinan University Medical College, Guangzhou 510632, China
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46
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Rahman SU, Nagrath M, Ponnusamy S, Arany PR. Nanoscale and Macroscale Scaffolds with Controlled-Release Polymeric Systems for Dental Craniomaxillofacial Tissue Engineering. MATERIALS (BASEL, SWITZERLAND) 2018; 11:E1478. [PMID: 30127246 PMCID: PMC6120038 DOI: 10.3390/ma11081478] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Revised: 08/03/2018] [Accepted: 08/10/2018] [Indexed: 12/11/2022]
Abstract
Tremendous progress in stem cell biology has resulted in a major current focus on effective modalities to promote directed cellular behavior for clinical therapy. The fundamental principles of tissue engineering are aimed at providing soluble and insoluble biological cues to promote these directed biological responses. Better understanding of extracellular matrix functions is ensuring optimal adhesive substrates to promote cell mobility and a suitable physical niche to direct stem cell responses. Further, appreciation of the roles of matrix constituents as morphogen cues, termed matrikines or matricryptins, are also now being directly exploited in biomaterial design. These insoluble topological cues can be presented at both micro- and nanoscales with specific fabrication techniques. Progress in development and molecular biology has described key roles for a range of biological molecules, such as proteins, lipids, and nucleic acids, to serve as morphogens promoting directed behavior in stem cells. Controlled-release systems involving encapsulation of bioactive agents within polymeric carriers are enabling utilization of soluble cues. Using our efforts at dental craniofacial tissue engineering, this narrative review focuses on outlining specific biomaterial fabrication techniques, such as electrospinning, gas foaming, and 3D printing used in combination with polymeric nano- or microspheres. These avenues are providing unprecedented therapeutic opportunities for precision bioengineering for regenerative applications.
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Affiliation(s)
- Saeed Ur Rahman
- Departments of Oral Biology and Biomedical Engineering, School of Dentistry, University at Buffalo, Buffalo, NY 14214, USA.
- Interdisciplinary Research Centre in Biomedical Materials, COMSATS University Islamabad, Lahore Campus, Lahore 54000, Pakistan.
| | - Malvika Nagrath
- Departments of Oral Biology and Biomedical Engineering, School of Dentistry, University at Buffalo, Buffalo, NY 14214, USA.
- Department of Biomedical Engineering, Ryerson University, Toronto, ON M5B 2K3, Canada.
| | - Sasikumar Ponnusamy
- Departments of Oral Biology and Biomedical Engineering, School of Dentistry, University at Buffalo, Buffalo, NY 14214, USA.
| | - Praveen R Arany
- Departments of Oral Biology and Biomedical Engineering, School of Dentistry, University at Buffalo, Buffalo, NY 14214, USA.
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47
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Philips C, Campos F, Roosens A, Sánchez-Quevedo MDC, Declercq H, Carriel V. Qualitative and Quantitative Evaluation of a Novel Detergent-Based Method for Decellularization of Peripheral Nerves. Ann Biomed Eng 2018; 46:1921-1937. [PMID: 29987538 DOI: 10.1007/s10439-018-2082-y] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Accepted: 06/22/2018] [Indexed: 01/02/2023]
Abstract
Tissue engineering is an emerging strategy for the development of nerve substitutes for peripheral nerve repair. Especially decellularized peripheral nerve allografts are interesting alternatives to replace the gold standard autografts. In this study, a novel decellularization protocol was qualitatively and quantitatively evaluated by histological, biochemical, ultrastructural and mechanical methods and compared to the protocol described by Sondell et al. and a modified version of the protocol described by Hudson et al. Decellularization by the method described by Sondell et al. resulted in a reduction of the cell content, but was accompanied by a loss of essential extracellular matrix (ECM) molecules such as laminin and glycosaminoglycans. This decellularization also caused disruption of the endoneurial tubes and an increased stiffness of the nerves. Decellularization by the adapted method of Hudson et al. did not alter the ECM composition of the nerves, but an efficient cell removal could not be obtained. Finally, decellularization by the method developed in our lab by Roosens et al. led to a successful removal of nuclear material, while maintaining the nerve ultrastructure and ECM composition. In addition, the resulting ECM scaffold was found to be cytocompatible, allowing attachment and proliferation of adipose-derived stem cells. These results show that our decellularization combining Triton X-100, DNase, RNase and trypsin created a promising scaffold for peripheral nerve regeneration.
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Affiliation(s)
- Charlot Philips
- Tissue Engineering and Biomaterials Group, Department of Basic Medical Sciences, Faculty of Medicine and Health Sciences, Ghent University, Corneel Heymanslaan 10, Building B3, 6th floor, 9000, Ghent, Belgium.
| | - Fernando Campos
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, Granada, Spain.,Instituto de Investigación Biosanitaria, Ibs.GRANADA, Granada, Spain
| | - Annelies Roosens
- Tissue Engineering and Biomaterials Group, Department of Basic Medical Sciences, Faculty of Medicine and Health Sciences, Ghent University, Corneel Heymanslaan 10, Building B3, 6th floor, 9000, Ghent, Belgium
| | - María Del Carmen Sánchez-Quevedo
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, Granada, Spain.,Instituto de Investigación Biosanitaria, Ibs.GRANADA, Granada, Spain
| | - Heidi Declercq
- Tissue Engineering and Biomaterials Group, Department of Basic Medical Sciences, Faculty of Medicine and Health Sciences, Ghent University, Corneel Heymanslaan 10, Building B3, 6th floor, 9000, Ghent, Belgium
| | - Víctor Carriel
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, Granada, Spain.,Instituto de Investigación Biosanitaria, Ibs.GRANADA, Granada, Spain
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Zhang D, Wu S, Feng J, Duan Y, Xing D, Gao C. Micropatterned biodegradable polyesters clicked with CQAASIKVAV promote cell alignment, directional migration, and neurite outgrowth. Acta Biomater 2018; 74:143-155. [PMID: 29768188 DOI: 10.1016/j.actbio.2018.05.018] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2018] [Revised: 03/28/2018] [Accepted: 05/11/2018] [Indexed: 12/31/2022]
Abstract
The interplay of microstructures and biological cues is critical to regulate the behaviors of Schwann cells (SCs) in terms of cellular spatial arrangement and directional migration as well as neurite orientation for bridging the proximal and distal stumps of the injured peripheral nervous system. In this study, stripe micropatterns having ridges/grooves of width 20/20 and 20/40 μm were fabricated on the surface of maleimide-functionalized biodegradable poly(ester carbonate) (P(LLA-MTMC)) films by the polydimethylsiloxane mold-pressing method, respectively. The laminin-derived CQAASIKVAV peptides end-capped with an SH group were then grafted by the thiol-ene click reaction under mild conditions to obtain micropatterned and peptide-grafted films. SCs cultured on these films, especially on the 20/40-μm film, displayed faster and aligned adhesion as well as a larger number of elongated cells with a higher length-to-width (L/W) ratio along the stripe direction than those on the flat-pep film. The migration rate of SCs was significantly enhanced in parallel to the stripe direction with a large net displacement. The micropatterned and peptide-grafted films, especially the 20/40-μm film, could promote SC proliferation and nerve growth factor (NGF) secretion in a manner similar to that of the peptide-grafted planar film. Moreover, the neurites of rat pheochromocytoma 12 (PC12) cells sprouted along the ridges with a longer average length on the micropatterned and peptide-grafted films. The synergistic effect of physical patterns and biological cues was evaluated by considering the results of cell adhesion force; immunofluorescence staining of vinculin; fluorescence staining of F-actin and the nucleus; as well as gene expression of neural cadherin (NCAD), neurocan (NCAN), and myelin protein zero (P0). STATEMENT OF SIGNIFICANCE The interplay of microstructures and biological cues is critical to regulate the behaviors of Schwann cells (SCs) and nerve cells, and thereby the regeneration of peripheral nerve system. In this study, the combined micropatterning and CQAASIKVAV grafting endowed the modified P(LLA-MTMC) films with both contact guidance and bioactive chemical cues to enhance cell proliferation, directional alignment and migration, longer net displacement and larger NGF secretion, and stronger neurite outgrowth of SCs and PC12 cells. Hence, the integration of physical micropatterns and bioactive molecules is an effective way to obtain featured biomaterials for the regeneration of nerves and other types of tissues.
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Godoy‐Guzmán C, Nuñez C, Orihuela P, Campos A, Carriel V. Distribution of extracellular matrix molecules in human uterine tubes during the menstrual cycle: a histological and immunohistochemical analysis. J Anat 2018; 233:73-85. [PMID: 29663371 PMCID: PMC5987832 DOI: 10.1111/joa.12814] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/07/2018] [Indexed: 11/30/2022] Open
Abstract
The uterine tube (UT) is an important and complex organ of the women's reproductive system. In general, the anatomy and basic histology of this organ are well-known. However, the composition and function of the extracellular matrix (ECM) of the UT is still poorly understood. The ECM is a complex supramolecular material produced by cells which is commonly restricted to the basement membrane and interstitial spaces. ECM molecules play not only a structural role, they are also important for cell growth, survival and differentiation in all tissues. In this context, the aim of this study was to evaluate the deposition and distribution of type I and III collagens and proteoglycans (decorin, biglycan, fibromodulin and versican) in human UT during the follicular and luteal phases by using histochemical and immunohistochemical techniques. Our results showed a broad synthesis of collagens (I and III) in the stroma of the UT. The analysis by regions showed, in the mucosa, a specific distribution of versican and fibromodulin in the epithelial surface, whereas decorin and fibromodulin were observed in the lamina propria. Versican and decorin were found in the stroma of the muscular layer, whereas all studied proteoglycans were identified in the serosa. Curiously, biglycan was restricted to the wall of the blood vessels of the serosa and muscular layers. Furthermore, there was an immunoreaction for collagens, decorin, versican and fibromodulin in the UT peripheral nerves. The differential distribution of these ECM molecules in the different layers of the UT could be related to specific structural and/or biomechanical functions needed for the oviductal transport, successful fertilization and early embryogenesis. However, further molecular studies under physiological and pathological conditions are still needed to elucidate the specific role of each molecule in the human UT.
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Affiliation(s)
- Carlos Godoy‐Guzmán
- Department of HistologyTissue Engineering GroupFaculty of MedicineUniversity of GranadaSpain
- Doctoral Program in BiomedicineUniversity of GranadaGranadaSpain
- Centro de Investigaciones Biomédicas y AplicadasEscuela de MedicinaUniversidad de Santiago de Chile, (USACH)SantiagoChile
| | - Claudio Nuñez
- Servicio de Ginecología y ObstetriciaHospital San JoséSantiagoChile
| | - Pedro Orihuela
- Laboratorio de Inmunología de la ReproduccíonFacultad de Química y BiologíaUniversidad de Santiago de ChileSantiagoChile
- Centro para el Desarrollo en Nanociencia y Nanotecnologıa‐CEDENNASantiagoChile
| | - Antonio Campos
- Department of HistologyTissue Engineering GroupFaculty of MedicineUniversity of GranadaSpain
- Instituto de Investigación Biosanitaria Ibs.GRANADAEspaña
| | - Víctor Carriel
- Department of HistologyTissue Engineering GroupFaculty of MedicineUniversity of GranadaSpain
- Instituto de Investigación Biosanitaria Ibs.GRANADAEspaña
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50
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Chitosan Tubes Enriched with Fresh Skeletal Muscle Fibers for Primary Nerve Repair. BIOMED RESEARCH INTERNATIONAL 2018; 2018:9175248. [PMID: 30009176 PMCID: PMC6020668 DOI: 10.1155/2018/9175248] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Accepted: 05/09/2018] [Indexed: 11/17/2022]
Abstract
Muscle-in-vein conduit is successfully employed for repairing nerve injuries: the vein prevents muscle fiber dispersion, while the muscle prevents the vein collapse and creates a favorable environment for Schwann cell migration and axon regrowth. However, it requires microsurgical skills. In this study we show a simple strategy to improve the performance of a chitosan hollow tube by the introduction of fresh skeletal muscle fibers. The hypothesis is to overcome the technical issue of the muscle-in-vein preparation and to take advantage of fiber muscle properties to create an easy and effective conduit for nerve regeneration. Rat median nerve gaps were repaired with chitosan tubes filled with skeletal muscle fibers (muscle-in-tube graft), hollow chitosan tubes, or autologous nerve grafts. Our results demonstrate that the fresh skeletal muscle inside the conduit is an endogenous source of soluble Neuregulin 1, a key factor for Schwann cell survival and dedifferentiation, absent in the hollow tube during the early phase of regeneration. However, nerve regeneration assessed at late time point was similar to that obtained with the hollow tube. To conclude, the muscle-in-tube graft is surgically easy to perform and we suggest that it might be a promising strategy to repair longer nerve gap or for secondary nerve repair, situations in which Schwann cell atrophy is a limiting factor for recovery.
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