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Li T, Cheng Q, Zhang J, Liu B, Shi Y, Wang H, Huang L, Zhang S, Zhang R, Wang S, Lu G, Tang P, Liu Z, Wang K. A novel flexible nerve guidance conduit promotes nerve regeneration while providing excellent mechanical properties. Neural Regen Res 2025; 20:2084-2094. [PMID: 39254568 DOI: 10.4103/nrr.nrr-d-23-01792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 02/23/2024] [Indexed: 09/11/2024] Open
Abstract
JOURNAL/nrgr/04.03/01300535-202507000-00029/figure1/v/2024-09-09T124005Z/r/image-tiff Autografting is the gold standard for surgical repair of nerve defects > 5 mm in length; however, autografting is associated with potential complications at the nerve donor site. As an alternative, nerve guidance conduits may be used. The ideal conduit should be flexible, resistant to kinks and lumen collapse, and provide physical cues to guide nerve regeneration. We designed a novel flexible conduit using electrospinning technology to create fibers on the innermost surface of the nerve guidance conduit and employed melt spinning to align them. Subsequently, we prepared disordered electrospun fibers outside the aligned fibers and helical melt-spun fibers on the outer wall of the electrospun fiber lumen. The presence of aligned fibers on the inner surface can promote the extension of nerve cells along the fibers. The helical melt-spun fibers on the outer surface can enhance resistance to kinking and compression and provide stability. Our novel conduit promoted nerve regeneration and functional recovery in a rat sciatic nerve defect model, suggesting that it has potential for clinical use in human nerve injuries.
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Affiliation(s)
- Tong Li
- Department of Orthopedics, the Fourth Medical Center of Chinese PLA General Hospital, Beijing, China
- Department of Training and Sports Medicine, Characteristic Medical Center of Chinese People's Armed Police Force, Tianjin, China
- Medical School of Chinese PLA, Beijing, China
| | - Quhan Cheng
- Key Laboratory of Bioactive Materials for the Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China
| | - Jingai Zhang
- Key Laboratory of Bioactive Materials for the Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China
| | - Boxin Liu
- Key Laboratory of Bioactive Materials for the Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China
| | - Yu Shi
- Key Laboratory of Bioactive Materials for the Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China
| | - Haoxue Wang
- Key Laboratory of Bioactive Materials for the Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China
| | - Lijie Huang
- Key Laboratory of Bioactive Materials for the Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China
| | - Su Zhang
- Key Laboratory of Bioactive Materials for the Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China
| | - Ruixin Zhang
- Key Laboratory of Bioactive Materials for the Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China
| | - Song Wang
- Department of Orthopedics, Tianjin Hospital, Tianjin, China
| | - Guangxu Lu
- Department of Rehabilitation Medicine, Er Quan Hospital of PAP, Wuxi, Jiangsu Province, China
| | - Peifu Tang
- Department of Orthopedics, the Fourth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Zhongyang Liu
- Department of Orthopedics, the Fourth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Kai Wang
- Key Laboratory of Bioactive Materials for the Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China
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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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Shlapakova LE, Surmeneva MA, Kholkin AL, Surmenev RA. Revealing an important role of piezoelectric polymers in nervous-tissue regeneration: A review. Mater Today Bio 2024; 25:100950. [PMID: 38318479 PMCID: PMC10840125 DOI: 10.1016/j.mtbio.2024.100950] [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: 10/05/2023] [Revised: 12/12/2023] [Accepted: 01/08/2024] [Indexed: 02/07/2024] Open
Abstract
Nerve injuries pose a drastic threat to nerve mobility and sensitivity and lead to permanent dysfunction due to low regenerative capacity of mature neurons. The electrical stimuli that can be provided by electroactive materials are some of the most effective tools for the formation of soft tissues, including nerves. Electric output can provide a distinctly favorable bioelectrical microenvironment, which is especially relevant for the nervous system. Piezoelectric biomaterials have attracted attention in the field of neural tissue engineering owing to their biocompatibility and ability to generate piezoelectric surface charges. In this review, an outlook of the most recent achievements in the field of piezoelectric biomaterials is described with an emphasis on piezoelectric polymers for neural tissue engineering. First, general recommendations for the design of an optimal nerve scaffold are discussed. Then, specific mechanisms determining nerve regeneration via piezoelectric stimulation are considered. Activation of piezoelectric responses via natural body movements, ultrasound, and magnetic fillers is also examined. The use of magnetoelectric materials in combination with alternating magnetic fields is thought to be the most promising due to controllable reproducible cyclic deformations and deep tissue permeation by magnetic fields without tissue heating. In vitro and in vivo applications of nerve guidance scaffolds and conduits made of various piezopolymers are reviewed too. Finally, challenges and prospective research directions regarding piezoelectric biomaterials promoting nerve regeneration are discussed. Thus, the most relevant scientific findings and strategies in neural tissue engineering are described here, and this review may serve as a guideline both for researchers and clinicians.
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Affiliation(s)
- Lada E. Shlapakova
- Physical Materials Science and Composite Materials Center, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk, 634050, Russia
| | - Maria A. Surmeneva
- Physical Materials Science and Composite Materials Center, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk, 634050, Russia
- Piezo- and Magnetoelectric Materials Research & Development Centre, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, 634050, Tomsk, Russia
| | - Andrei L. Kholkin
- Piezo- and Magnetoelectric Materials Research & Development Centre, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, 634050, Tomsk, Russia
- Department of Physics & CICECO - Aveiro Institute of Materials, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Roman A. Surmenev
- Physical Materials Science and Composite Materials Center, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk, 634050, Russia
- Piezo- and Magnetoelectric Materials Research & Development Centre, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, 634050, Tomsk, Russia
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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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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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Shlapakova LE, Botvin VV, Mukhortova YR, Zharkova II, Alipkina SI, Zeltzer A, Dudun AA, Makhina T, Bonartseva GA, Voinova VV, Wagner DV, Pariy I, Bonartsev AP, Surmenev RA, Surmeneva MA. Magnetoactive Composite Conduits Based on Poly(3-hydroxybutyrate) and Magnetite Nanoparticles for Repair of Peripheral Nerve Injury. ACS APPLIED BIO MATERIALS 2024; 7:1095-1114. [PMID: 38270084 DOI: 10.1021/acsabm.3c01032] [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] [Indexed: 01/26/2024]
Abstract
Peripheral nerve injury poses a threat to the mobility and sensitivity of a nerve, thereby leading to permanent function loss due to the low regenerative capacity of mature neurons. To date, the most widely clinically applied approach to bridging nerve injuries is autologous nerve grafting, which faces challenges such as donor site morbidity, donor shortages, and the necessity of a second surgery. An effective therapeutic strategy is urgently needed worldwide to overcome the current limitations. Herein, a magnetic nerve guidance conduit (NGC) based on biocompatible biodegradable poly(3-hydroxybutyrate) (PHB) and 8 wt % of magnetite nanoparticles modified by citric acid (Fe3O4-CA) was fabricated by electrospinning. The crystalline structure of NGCs was studied by X-ray diffraction, which indicated an enlarged β-phase of PHB in the composite conduit compared to a pure PHB conduit. Tensile tests revealed greater ductility of PHB/Fe3O4-CA: the composite conduit has Young's modulus of 221 ± 52 MPa and an elongation at break of 28.6 ± 2.9%, comparable to clinical materials. Saturation magnetization (σs) of Fe3O4-CA and PHB/Fe3O4-CA is 61.88 ± 0.29 and 7.44 ± 0.07 emu/g, respectively. The water contact angle of the PHB/Fe3O4-CA conduit is lower as compared to pure PHB, while surface free energy (σ) is significantly higher, which was attributed to higher surface roughness and an amorphous phase as well as possible PHB/Fe3O4-CA interface interactions. In vitro, the conduits supported the proliferation of rat mesenchymal stem cells (rMSCs) and SH-SY5Y cells in a low-frequency magnetic field (0.67 Hz, 68 mT). In vivo, the conduits were used to bridge damaged sciatic nerves in rats; pure PHB and composite PHB/Fe3O4-CA conduits did not cause acute inflammation and performed a barrier function, which promotes nerve regeneration. Thus, these conduits are promising as implants for the regeneration of peripheral nerves.
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Affiliation(s)
- Lada E Shlapakova
- Physical Materials Science and Composite Materials Center, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk 634050, Russia
| | - Vladimir V Botvin
- Physical Materials Science and Composite Materials Center, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk 634050, Russia
| | - Yulia R Mukhortova
- Physical Materials Science and Composite Materials Center, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk 634050, Russia
| | - Irina I Zharkova
- Faculty of Biology, M.V. Lomonosov Moscow State University, Leninskie Gory 1-12, Moscow 119234, Russia
| | - Svetlana I Alipkina
- Faculty of Biology, M.V. Lomonosov Moscow State University, Leninskie Gory 1-12, Moscow 119234, Russia
| | - Angelina Zeltzer
- Faculty of Biology, M.V. Lomonosov Moscow State University, Leninskie Gory 1-12, Moscow 119234, Russia
| | - Andrey A Dudun
- Research Center of Biotechnology, Russian Academy of Sciences, Leninsky Ave 33, Bldg. 2, Moscow 119071, Russia
| | - Tatiana Makhina
- Research Center of Biotechnology, Russian Academy of Sciences, Leninsky Ave 33, Bldg. 2, Moscow 119071, Russia
| | - Garina A Bonartseva
- Research Center of Biotechnology, Russian Academy of Sciences, Leninsky Ave 33, Bldg. 2, Moscow 119071, Russia
| | - Vera V Voinova
- Faculty of Biology, M.V. Lomonosov Moscow State University, Leninskie Gory 1-12, Moscow 119234, Russia
| | - Dmitry V Wagner
- National Research Tomsk State University, Tomsk 634050, Russia
| | - Igor Pariy
- Physical Materials Science and Composite Materials Center, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk 634050, Russia
| | - Anton P Bonartsev
- Faculty of Biology, M.V. Lomonosov Moscow State University, Leninskie Gory 1-12, Moscow 119234, Russia
| | - Roman A Surmenev
- Physical Materials Science and Composite Materials Center, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk 634050, Russia
| | - Maria A Surmeneva
- Physical Materials Science and Composite Materials Center, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk 634050, Russia
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7
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Klabukov I, Tenchurin T, Shepelev A, Baranovskii D, Mamagulashvili V, Dyuzheva T, Krasilnikova O, Balyasin M, Lyundup A, Krasheninnikov M, Sulina Y, Gomzyak V, Krasheninnikov S, Buzin A, Zayratyants G, Yakimova A, Demchenko A, Ivanov S, Shegay P, Kaprin A, Chvalun S. Biomechanical Behaviors and Degradation Properties of Multilayered Polymer Scaffolds: The Phase Space Method for Bile Duct Design and Bioengineering. Biomedicines 2023; 11:biomedicines11030745. [PMID: 36979723 PMCID: PMC10044742 DOI: 10.3390/biomedicines11030745] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 02/21/2023] [Accepted: 02/22/2023] [Indexed: 03/06/2023] Open
Abstract
This article reports the electrospinning technique for the manufacturing of multilayered scaffolds for bile duct tissue engineering based on an inner layer of polycaprolactone (PCL) and an outer layer either of a copolymer of D,L-lactide and glycolide (PLGA) or a copolymer of L-lactide and ε-caprolactone (PLCL). A study of the degradation properties of separate polymers showed that flat PCL samples exhibited the highest resistance to hydrolysis in comparison with PLGA and PLCL. Irrespective of the liquid-phase nature, no significant mass loss of PCL samples was found in 140 days of incubation. The PLCL- and PLGA-based flat samples were more prone to hydrolysis within the same period of time, which was confirmed by the increased loss of mass and a significant reduction of weight-average molecular mass. The study of the mechanical properties of developed multi-layered tubular scaffolds revealed that their strength in the longitudinal and transverse directions was comparable with the values measured for a decellularized bile duct. The strength of three-layered scaffolds declined significantly because of the active degradation of the outer layer made of PLGA. The strength of scaffolds with the PLCL outer layer deteriorated much less with time, both in the axial (p-value = 0.0016) and radial (p-value = 0.0022) directions. A novel method for assessment of the physiological relevance of synthetic scaffolds was developed and named the phase space approach for assessment of physiological relevance. Two-dimensional phase space (elongation modulus and tensile strength) was used for the assessment and visualization of the physiological relevance of scaffolds for bile duct bioengineering. In conclusion, the design of scaffolds for the creation of physiologically relevant tissue-engineered bile ducts should be based not only on biodegradation properties but also on the biomechanical time-related behavior of various compositions of polymers and copolymers.
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Affiliation(s)
- Ilya Klabukov
- Department of Regenerative Medicine, National Medical Research Radiological Centre of the Ministry of Health of the Russian Federation, 249031 Obninsk, Russia
- Department of Urology and Operative Nephrology, Peoples Friendship University of Russia (RUDN University), 117198 Moscow, Russia
- Obninsk Institute for Nuclear Power Engineering, National Research Nuclear University MEPhI, 115409 Obninsk, Russia
- Correspondence:
| | - Timur Tenchurin
- National Research Centre “Kurchatov Institute”, 1, Akademika Kurchatova pl., 123182 Moscow, Russia
| | - Alexey Shepelev
- National Research Centre “Kurchatov Institute”, 1, Akademika Kurchatova pl., 123182 Moscow, Russia
| | - Denis Baranovskii
- Department of Regenerative Medicine, National Medical Research Radiological Centre of the Ministry of Health of the Russian Federation, 249031 Obninsk, Russia
- Department of Urology and Operative Nephrology, Peoples Friendship University of Russia (RUDN University), 117198 Moscow, Russia
| | - Vissarion Mamagulashvili
- National Research Centre “Kurchatov Institute”, 1, Akademika Kurchatova pl., 123182 Moscow, Russia
| | - Tatiana Dyuzheva
- Department of Hospital Surgery, Sklifosovsky Institute of Clinical Medicine, Sechenov First Moscow State Medical University (Sechenov University), 119435 Moscow, Russia
| | - Olga Krasilnikova
- Department of Regenerative Medicine, National Medical Research Radiological Centre of the Ministry of Health of the Russian Federation, 249031 Obninsk, Russia
| | - Maksim Balyasin
- Research and Educational Resource Center for Cellular Technologies, Peoples Friendship University of Russia (RUDN University), 117198 Moscow, Russia
| | - Alexey Lyundup
- Research and Educational Resource Center for Cellular Technologies, Peoples Friendship University of Russia (RUDN University), 117198 Moscow, Russia
- N.P. Bochkov Research Centre for Medical Genetics, 115478 Moscow, Russia
| | - Mikhail Krasheninnikov
- Research and Educational Resource Center for Cellular Technologies, Peoples Friendship University of Russia (RUDN University), 117198 Moscow, Russia
- Lomonosov Institute of Fine Chemical Technologies, Russian Technological University MIREA, 119454 Moscow, Russia
| | - Yana Sulina
- Department of Obstetrics and Gynecology, Sechenov First Moscow State Medical University (Sechenov University), 119435 Moscow, Russia
| | - Vitaly Gomzyak
- National Research Centre “Kurchatov Institute”, 1, Akademika Kurchatova pl., 123182 Moscow, Russia
| | - Sergey Krasheninnikov
- National Research Centre “Kurchatov Institute”, 1, Akademika Kurchatova pl., 123182 Moscow, Russia
| | - Alexander Buzin
- National Research Centre “Kurchatov Institute”, 1, Akademika Kurchatova pl., 123182 Moscow, Russia
- Laboratory of the Structure of Polymer Materials, Enikolopov Institute of Synthetic Polymer Materials RAS, 117393 Moscow, Russia
| | - Georgiy Zayratyants
- Department of Pathology, Moscow State University of Medicine and Dentistry, Delegatskaya st., 20, p. 1, 127473 Moscow, Russia
| | - Anna Yakimova
- Department of Regenerative Medicine, National Medical Research Radiological Centre of the Ministry of Health of the Russian Federation, 249031 Obninsk, Russia
| | - Anna Demchenko
- N.P. Bochkov Research Centre for Medical Genetics, 115478 Moscow, Russia
| | - Sergey Ivanov
- Department of Regenerative Medicine, National Medical Research Radiological Centre of the Ministry of Health of the Russian Federation, 249031 Obninsk, Russia
| | - Peter Shegay
- Department of Regenerative Medicine, National Medical Research Radiological Centre of the Ministry of Health of the Russian Federation, 249031 Obninsk, Russia
- Department of Urology and Operative Nephrology, Peoples Friendship University of Russia (RUDN University), 117198 Moscow, Russia
| | - Andrey Kaprin
- Department of Regenerative Medicine, National Medical Research Radiological Centre of the Ministry of Health of the Russian Federation, 249031 Obninsk, Russia
- Department of Urology and Operative Nephrology, Peoples Friendship University of Russia (RUDN University), 117198 Moscow, Russia
| | - Sergei Chvalun
- National Research Centre “Kurchatov Institute”, 1, Akademika Kurchatova pl., 123182 Moscow, Russia
- Laboratory of the Structure of Polymer Materials, Enikolopov Institute of Synthetic Polymer Materials RAS, 117393 Moscow, Russia
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8
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Klabukov I, Balyasin M, Krasilnikova O, Tenchurin T, Titov A, Krasheninnikov M, Mudryak D, Sulina Y, Shepelev A, Chvalun S, Dyuzheva T, Yakimova A, Sosin D, Lyundup A, Baranovskii D, Shegay P, Kaprin A. Angiogenic Modification of Microfibrous Polycaprolactone by pCMV-VEGF165 Plasmid Promotes Local Vascular Growth after Implantation in Rats. Int J Mol Sci 2023; 24:ijms24021399. [PMID: 36674913 PMCID: PMC9865169 DOI: 10.3390/ijms24021399] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/26/2022] [Accepted: 01/04/2023] [Indexed: 01/12/2023] Open
Abstract
Insufficient vascular growth in the area of artificial-material implantation contributes to ischemia, fibrosis, the development of bacterial infections, and tissue necrosis around the graft. The purpose of this study was to evaluate angiogenesis after implantation of polycaprolactone microfiber scaffolds modified by a pCMV-VEGF165-plasmid in rats. Influence of vascularization on scaffold degradation was also examined. We investigated flat microfibrous scaffolds obtained by electrospinning polycaprolactone with incorporation of the pCMV-VEGF-165 plasmid into the microfibers at concentrations of 0.005 ng of plasmid per 1 mg of polycaprolactone (0.005 ng/mg) (LCGroup) and 0.05 ng/mg (HCGroup). The samples were subcutaneously implanted in the interscapular area of rats. On days 7, 16, 33, 46, and 64, the scaffolds were removed, and a histological study with a morphometric evaluation of the density and diameter of the vessels and microfiber diameter was performed. The number of vessels was increased in all groups, as well as the resorption of the scaffold. On day 33, the vascular density in the HCGroup was 42% higher compared to the control group (p = 0.0344). The dose-dependent effect of the pCMV-VEGF165-plasmid was confirmed by enhanced angiogenesis in the HCGroup compared to the LCGroup on day 33 (p-value = 0.0259). We did not find a statistically significant correlation between scaffold degradation rate and vessel growth (the Pearson correlation coefficient was ρ = 0.20, p-value = 0.6134). Functionalization of polycaprolactone by incorporation of the pCMV-VEGF165 plasmid provided improved vascularization within 33 days after implantation, however, vessel growth did not seem to correlate with scaffold degradation rate.
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Affiliation(s)
- Ilya Klabukov
- Department of Regenerative Medicine, National Medical Research Radiological Center, 249031 Obninsk, Russia
- Obninsk Institute for Nuclear Power Engineering, National Research Nuclear University MEPhI, 115409 Obninsk, Russia
- Department of Urology and Operative Nephrology, Peoples’ Friendship University of Russia (RUDN University), 117198 Moscow, Russia
- Correspondence:
| | - Maksim Balyasin
- Department of Urology and Operative Nephrology, Peoples’ Friendship University of Russia (RUDN University), 117198 Moscow, Russia
| | - Olga Krasilnikova
- Department of Regenerative Medicine, National Medical Research Radiological Center, 249031 Obninsk, Russia
| | - Timur Tenchurin
- National Research Centre “Kurchatov Institute”, 1, Akademika Kurchatova pl., 123182 Moscow, Russia
| | - Alexander Titov
- City Clinical Hospital No. 67 of Moscow Health Department, 2/44, Salyama Adilya St., 123423 Moscow, Russia
| | - Mikhail Krasheninnikov
- Department of Urology and Operative Nephrology, Peoples’ Friendship University of Russia (RUDN University), 117198 Moscow, Russia
- Lomonosov Institute of Fine Chemical Technologies, Russian Technological University MIREA, 119454 Moscow, Russia
| | - Daniil Mudryak
- City Clinical Hospital No. 67 of Moscow Health Department, 2/44, Salyama Adilya St., 123423 Moscow, Russia
- Department of Hospital Surgery, Sklifosovsky Institute of Clinical Medicine, Sechenov University, 119435 Moscow, Russia
| | - Yana Sulina
- Department of Obstetrics and Gynecology, Sechenov University, 119435 Moscow, Russia
| | - Alexey Shepelev
- National Research Centre “Kurchatov Institute”, 1, Akademika Kurchatova pl., 123182 Moscow, Russia
| | - Sergei Chvalun
- National Research Centre “Kurchatov Institute”, 1, Akademika Kurchatova pl., 123182 Moscow, Russia
| | - Tatiana Dyuzheva
- Department of Hospital Surgery, Sklifosovsky Institute of Clinical Medicine, Sechenov University, 119435 Moscow, Russia
| | - Anna Yakimova
- A. Tsyb Medical Research Radiological Center—Branch of the National Medical Research Radiological Center, Koroleva St. 4, 249036 Obninsk, Russia
| | - Dmitry Sosin
- Center for Strategic Planning and Management of Biomedical Health Risks of the Federal Medical Biological Agency, 125371 Moscow, Russia
| | - Alexey Lyundup
- Department of Urology and Operative Nephrology, Peoples’ Friendship University of Russia (RUDN University), 117198 Moscow, Russia
| | - Denis Baranovskii
- Department of Urology and Operative Nephrology, Peoples’ Friendship University of Russia (RUDN University), 117198 Moscow, Russia
- A. Tsyb Medical Research Radiological Center—Branch of the National Medical Research Radiological Center, Koroleva St. 4, 249036 Obninsk, Russia
| | - Peter Shegay
- Department of Regenerative Medicine, National Medical Research Radiological Center, 249031 Obninsk, Russia
- Department of Urology and Operative Nephrology, Peoples’ Friendship University of Russia (RUDN University), 117198 Moscow, Russia
| | - Andrey Kaprin
- Department of Regenerative Medicine, National Medical Research Radiological Center, 249031 Obninsk, Russia
- Department of Urology and Operative Nephrology, Peoples’ Friendship University of Russia (RUDN University), 117198 Moscow, Russia
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9
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Gai K, Ren X, Chen J, Zhou X, Wan Q, Wang Q, Li Y. Construction of Helically Oriented Syndiotactic Polypropylene/Isotactic Polypropylene Composites for Medical Interventional Tubes via Rotation Extrusion. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c03446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Kuo Gai
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, West China Hospital of Stomatology, Sichuan University, Chengdu610041, China
| | - Xiangfeng Ren
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, West China Hospital of Stomatology, Sichuan University, Chengdu610041, China
| | - Junyu Chen
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, West China Hospital of Stomatology, Sichuan University, Chengdu610041, China
| | - Xiling Zhou
- National Engineering Research Center of Novel Equipment for Polymer Processing; Key Laboratory of Polymer Processing Engineering, Ministry of Education; Guangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular Advanced Manufacturing; Department of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou510641, China
| | - Qianbing Wan
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, West China Hospital of Stomatology, Sichuan University, Chengdu610041, China
| | - Qi Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, West China Hospital of Stomatology, Sichuan University, Chengdu610041, China
| | - Yijun Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, West China Hospital of Stomatology, Sichuan University, Chengdu610041, China
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10
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Wang Q, Yu X, Chen X, Gao J, Shi D, Shen Y, Tang J, He J, Li A, Yu L, Ding J. A Facile Composite Strategy to Prepare a Biodegradable Polymer Based Radiopaque Raw Material for "Visualizable" Biomedical Implants. ACS APPLIED MATERIALS & INTERFACES 2022; 14:24197-24212. [PMID: 35580332 DOI: 10.1021/acsami.2c05184] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Enabling a biodegradable polymer radiopaque under X-ray is much desired for many medical devices. Physical blending of a present biodegradable polymer and a commercialized medical contrast agent is convenient yet lacks comprehensive fundamental research. Herein, we prepared a biodegradable polymer-based radiopaque raw material by blending poly(l-lactic acid) (PLLA or simply PLA) and iohexol (IHX), where PLA constituted the continuous phase and IHX particles served as the dispersed phase. The strong X-ray adsorption of IHX enabled the composite radiopaque; the hydrolysis of the polyester and the water solubility of the contrast agent enabled the composite biodegradable in an aqueous medium. The idea was confirmed by in vitro characterizations of the resultant composite, in vivo subcutaneous implantation in rats up to 6 months, and the clear visualization of a part of a biodegradable occluder in a Bama piglet under X-ray. We also found that the crystallization of PLA was significantly enhanced in the presence of the solid particles, which should be taken into consideration in the design of an appropriate biomaterial composite because crystallization degree influences the biodegradation rate and mechanical property of a material to a large extent. We further tried to introduce a small amount of poly(vinylpyrrolidone) into the blend of PLA and IHX. Compared to the bicomponent composite, the tricomponent one exhibited decreased modulus and increased elongation at break and tensile strength. This paves more ways for researchers to select appropriate raw materials according to the regenerated tissue and the application site.
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Affiliation(s)
- Qunsong Wang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Xiaoye Yu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Xianmiao Chen
- R&D Center, Lifetech Scientific (Shenzhen) Co., Ltd., Shenzhen 518057, China
| | - Jingming Gao
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Daokun Shi
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Yang Shen
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Jingyu Tang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Junhao He
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Anning Li
- R&D Center, Lifetech Scientific (Shenzhen) Co., Ltd., Shenzhen 518057, China
| | - Lin Yu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Jiandong Ding
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
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11
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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: 30] [Impact Index Per Article: 15.0] [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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12
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Entezari M, Mozafari M, Bakhtiyari M, Moradi F, Bagher Z, Soleimani M. Three-dimensional-printed polycaprolactone/polypyrrole conducting scaffolds for differentiation of human olfactory ecto-mesenchymal stem cells into Schwann cell-like phenotypes and promotion of neurite outgrowth. J Biomed Mater Res A 2022; 110:1134-1146. [PMID: 35075781 DOI: 10.1002/jbm.a.37361] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Revised: 12/25/2021] [Accepted: 01/05/2022] [Indexed: 12/14/2022]
Abstract
Implantation of a suitable nerve guide conduit (NGC) seeded with sufficient Schwann cells (SCs) is required to improve peripheral nerve regeneration efficiently. Given the limitations of isolating and culturing SCs, using various sources of stem cells, including mesenchymal stem cells (MSCs) obtained from nasal olfactory mucosa, can be desirable. Olfactory ecto-MSCs (OE-MSCs) are a new population of neural crest-derived stem cells that can proliferate and differentiate into SCs and can be considered a promising autologous alternative to produce SCs. Regardless, a biomimetic physicochemical microenvironment in NGC such as electroconductive substrate can affect the fate of transplanted stem cells, including differentiation toward SCs and nerve regeneration. Therefore, in this study, the effect of 3D printed polycaprolactone (PCL)/polypyrrole (PPy) conductive scaffolds on differentiation of human OE-MSCS into functional SC-like phenotypes was investigated. Biological evaluation of 3D printed scaffolds was examined by in vitro culturing the OE-MSCs on samples surfaces, and conductivity showed no effect on increased cell attachment, proliferation rate, viability, and distribution. In contrast, immunocytochemical staining and real-time polymerase chain reaction analysis indicated that 3D structures coated with PPy could provide a favorable microenvironment for OE-MSCs differentiation. In addition, it was found that differentiated OE-MSCs within PCL/PPy could secrete the highest amounts of nerve growth factor and brain-derived neurotrophic factor neurotrophic factors compared to pure PCL and 2D culture. After co-culturing with PC12 cells, a significant increase in neurite outgrowth on PCL/PPy conductive scaffold seeded with differentiated OE-MSCs. These findings indicated that 3D printed PCL/PPy conductive scaffold could support differentiation of OE-MSCs into SC-like phenotypes to promote neurite outgrowth, suggesting their potential for neural tissue engineering applications.
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Affiliation(s)
- Maedeh Entezari
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran.,Department of Anatomy, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Masoud Mozafari
- Department of Tissue Engineering and Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran.,ENT and Head & Neck Research Center and Department, The Five Senses Health Institute, school of medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Mehrdad Bakhtiyari
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran.,Department of Anatomy, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Fatemeh Moradi
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran.,Department of Anatomy, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Zohreh Bagher
- Department of Tissue Engineering and Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran.,ENT and Head & Neck Research Center and Department, The Five Senses Health Institute, school of medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Mansoureh Soleimani
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran.,Department of Anatomy, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
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13
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Zhang M, Liu J, Zhu T, Le H, Wang X, Guo J, Liu G, Ding J. Functional Macromolecular Adhesives for Bone Fracture Healing. ACS APPLIED MATERIALS & INTERFACES 2022; 14:1-19. [PMID: 34939784 DOI: 10.1021/acsami.1c17434] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Compared with traditional internal fixation devices, bone adhesives are expected to exhibit remarkable advantages, such as improved fixation of comminuted fractures and maintained spatial location of fractured scattered bone pieces in treating bone injuries. In this review, different bone adhesives are summarized from the aspects of bone tissue engineering, and the applications of bone adhesives are emphasized. The concepts of "liquid scaffold" and "liquid plate" are proposed to summarize two different research directions of bone adhesives. Furthermore, significant advances of bone adhesives in recent years in mechanical strength, osseointegration, osteoconductivity, and osteoinductivity are discussed. We conclude this topic by providing perspectives on the state-of-the-art research progress and future development trends of bone adhesives. We hope this review will provide a comprehensive summary of bone adhesives and inspire more extensive and in-depth research on this subject.
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Affiliation(s)
- Mingran Zhang
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, 126 Xiantai Street, Changchun 130033, People's Republic of China
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, People's Republic of China
| | - Jiaxue Liu
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, People's Republic of China
- Jilin Collaborative Innovation Center for Antibody Engineering, Jilin Medical University, 5 Jilin Street, Jilin 132000, People's Republic of China
| | - Tongtong Zhu
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, 126 Xiantai Street, Changchun 130033, People's Republic of China
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, People's Republic of China
| | - Hanxiang Le
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, People's Republic of China
- Orthopaedic Medical Center, The Second Hospital of Jilin University, 218 Ziqiang Street, Changchun 130041, People's Republic of China
| | - Xukai Wang
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, 126 Xiantai Street, Changchun 130033, People's Republic of China
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, People's Republic of China
| | - Jinshan Guo
- Department of Histology and Embryology, School of Basic Medical Sciences; Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, The Third Affiliated Hospital of Southern Medical University, Southern Medical University, 1023 Southern Shatai Road, Guangzhou 510515, People's Republic of China
| | - Guangyao Liu
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, 126 Xiantai Street, Changchun 130033, People's Republic of China
| | - Jianxun Ding
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, People's Republic of China
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14
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Liu X, Xu N, Pu X, Wang J, Liao X, Huang Z, Yin G. Combined photothermal-photodynamic therapy by indocyanine green loaded polydopamine nanoparticles enhances anti-mammary gland tumor efficacy. J Mater Chem B 2022; 10:4605-4614. [DOI: 10.1039/d2tb00565d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Various nano-targeted drug delivery systems have been developed for combined photothermal-photodynamic (PTT-PDT) treatment for tumors due to the better outcomes compared with monomodality. Here, we constructed a facile two-step method...
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15
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Shen J, Wang J, Liu X, Sun Y, Yin A, Chai Y, Zhang K, Wang C, Zheng X. In Situ Prevascularization Strategy with Three-Dimensional Porous Conduits for Neural Tissue Engineering. ACS APPLIED MATERIALS & INTERFACES 2021; 13:50785-50801. [PMID: 34664947 DOI: 10.1021/acsami.1c16138] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Neovascularization is crucial for peripheral nerve regeneration and long-term functional restoration. Previous studies have emphasized strategies that enhance axonal repair over vascularization. Here, we describe the development and application of an in situ prevascularization strategy that uses 3D porous nerve guidance conduits (NGCs) to achieve angiogenesis-mediated neural regeneration. The optimal porosity of the NGC is a critical feature for achieving neovascularization and nerve growth patency. Hollow silk fibroin/poly(l-lactic acid-co-ε-caprolactone) NGCs with 3D sponge-like walls were fabricated using electrospinning and freeze-drying. In vitro results showed that 3D porous NGC favored cell biocompatibility had neuroregeneration potential and, most importantly, had angiogenic activity. Results from our mechanistic studies suggest that activation of HIF-1α signaling might be associated with this process. We also tested in situ prevascularized 3D porous NGCs in vivo by transplanting them into a 10 mm rat sciatic nerve defect model with the aim of regenerating the severed nerve. The prevascularized 3D porous NGCs greatly enhanced intraneural angiogenesis, resulting in demonstrable neurogenesis. Eight weeks after transplantation, the performance of the prevascularized 3D NGCs was similar to that of traditional autografts in terms of improved anatomical structure, morphology, and neural function. In conclusion, combining a reasonably fabricated 3D-pore conduit structure with in situ prevascularization promoted functional nerve regeneration, suggesting an alternative strategy for achieving functional recovery after peripheral nerve trauma.
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Affiliation(s)
- Junjie Shen
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Yishan Road 600, Shanghai 200233, PR China
- Haikou Orthopedic and Diabetes Hospital of Shanghai Sixth People's Hospital, Hainan 570300, PR China
| | - Jiayan Wang
- College of Materials and Textile Engineering, Nanotechnology Research Institute, Jiaxing University, Zhejiang 314001, PR China
- Key Laboratory of Yarn Materials Forming and Composite Processing Technology, Zhejiang 314001, PR China
| | - Xuanzhe Liu
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Yishan Road 600, Shanghai 200233, PR China
| | - Yi Sun
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Yishan Road 600, Shanghai 200233, PR China
| | - Anlin Yin
- College of Materials and Textile Engineering, Nanotechnology Research Institute, Jiaxing University, Zhejiang 314001, PR China
- Key Laboratory of Yarn Materials Forming and Composite Processing Technology, Zhejiang 314001, PR China
| | - Yimin Chai
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Yishan Road 600, Shanghai 200233, PR China
| | - Kuihua Zhang
- College of Materials and Textile Engineering, Nanotechnology Research Institute, Jiaxing University, Zhejiang 314001, PR China
- Key Laboratory of Yarn Materials Forming and Composite Processing Technology, Zhejiang 314001, PR China
| | - Chunyang Wang
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Yishan Road 600, Shanghai 200233, PR China
- Haikou Orthopedic and Diabetes Hospital of Shanghai Sixth People's Hospital, Hainan 570300, PR China
| | - Xianyou Zheng
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Yishan Road 600, Shanghai 200233, PR China
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16
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Habibizadeh M, Nadri S, Fattahi A, Rostamizadeh K, Mohammadi P, Andalib S, Hamidi M, Forouzideh N. Surface modification of neurotrophin-3 loaded PCL/chitosan nanofiber/net by alginate hydrogel microlayer for enhanced biocompatibility in neural tissue engineering. J Biomed Mater Res A 2021; 109:2237-2254. [PMID: 34132482 DOI: 10.1002/jbm.a.37208] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 04/11/2021] [Accepted: 04/19/2021] [Indexed: 12/14/2022]
Abstract
This study prepared a novel three-dimensional nanocomposite scaffold by the surface modification of PCL/chitosan nanofiber/net with alginate hydrogel microlayer, hoping to have the privilege of both nanofibers and hydrogels simultaneously. Bead free randomly oriented nanofiber/net (NFN) structure composed of chitosan and polycaprolactone (PCL) was fabricated by electrospinning method. The low surface roughness, good hydrophilicity, and high porosity were obtained from the NFN structure. Then, the PCL/chitosan nanofiber/net was coated with a microlayer of alginate containing neurotrophin-3 (NT-3) and conjunctiva mesenchymal stem cells (CJMSCs) as a new stem cell source. According to the cross-sectional FESEM, the scaffold shows a two-layer structure with interconnected pores in the range of 20 μm diameter. The finding revealed that the surface modification of nanofiber/net by alginate hydrogel microlayer caused lower inflammatory response and higher proliferation of CJMSCs than the unmodified scaffold. The initial burst release of NT-3 was 69% in 3 days which followed by a sustained release up to 21 days. The RT-PCR analysis showed that the expression of Nestin, MAP-2, and β-tubulin III genes were increased 6, 5.4, and 8.8-fold, respectively. The results revealed that the surface-modified biomimetic scaffold possesses enhanced biocompatibility and could successfully differentiate CJMSCs to the neuron-like cells.
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Affiliation(s)
- Mina Habibizadeh
- Department of Pharmaceutical Biomaterials, School of Pharmacy, Zanjan University of Medical Sciences, Zanjan, Iran.,Student Research Committee, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Samad Nadri
- Department of Medical Nanotechnology, School of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Ali Fattahi
- Pharmaceutical Sciences Research Center, Health Institute, School of Pharmacy, Kermanshah University of Medical Sciences, Kermanshah, Iran.,Center for Applied NanoBioscience and Medicine, College of Medicine-Phoenix, University of Arizona, Phoenix, Arizona, USA
| | - Kobra Rostamizadeh
- Department of Pharmaceutical Biomaterials, School of Pharmacy, Zanjan University of Medical Sciences, Zanjan, Iran.,Pharmaceutical Nanotechnology Research Center, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Parvin Mohammadi
- Department of Medical Biotechnology, Faculty of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Sina Andalib
- Department of Pharmacology, School of Pharmacy, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Mehrdad Hamidi
- Pharmaceutical Nanotechnology Research Center, Zanjan University of Medical Sciences, Zanjan, Iran.,Department of Pharmaceutical Nanotechnology, School of Pharmacy, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Narges Forouzideh
- Department of Pharmaceutical Nanotechnology, School of Pharmacy, Zanjan University of Medical Sciences, Zanjan, Iran
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17
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Shaqour B, Aizawa J, Guarch-Pérez C, Górecka Ż, Christophersen L, Martinet W, Choińska E, Riool M, Verleije B, Beyers K, Moser C, Święszkowski W, Zaat SAJ, Cos P. Coupling Additive Manufacturing with Hot Melt Extrusion Technologies to Validate a Ventilator-Associated Pneumonia Mouse Model. Pharmaceutics 2021; 13:pharmaceutics13060772. [PMID: 34064276 PMCID: PMC8224298 DOI: 10.3390/pharmaceutics13060772] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/08/2021] [Accepted: 05/18/2021] [Indexed: 12/02/2022] Open
Abstract
Additive manufacturing is widely used to produce highly complex structures. Moreover, this technology has proven its superiority in producing tools which can be used in different applications. We designed and produced an extrusion nozzle that allowed us to hot melt extrude drug-loaded tubes. The tubes were an essential part of a new mouse ventilator-associated pneumonia (VAP) model. Ciprofloxacin (CPX) was selected for its expected activity against the pathogen Staphylococcus aureus and ease of incorporation into thermoplastic polyurethane (TPU). TPU was selected as the carrier polymer for its biocompatibility and use in a variety of medical devices such as tubing and catheters. The effect of loading CPX within the TPU polymeric matrix and the physicochemical properties of the produced tubes were investigated. CPX showed good thermal stability and in vitro activity in preventing S. aureus biofilm formation after loading within the tube’s polymeric matrix. Moreover, the produced tubes showed anti-infective efficacy in vivo. The produced tubes, which were extruded via our novel nozzle, were vital for the validation of our mouse VAP model. This model can be adopted to investigate other antibacterial and antibiofilm compounds incorporated in polymeric tubes using hot melt extrusion.
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Affiliation(s)
- Bahaa Shaqour
- Laboratory for Microbiology, Parasitology and Hygiene (LMPH), Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, University of Antwerp, Universiteitsplein 1 S.7, 2610 Wilrijk, Belgium; (J.A.); (P.C.)
- Mechanical and Mechatronics Engineering Department, Faculty of Engineering & Information Technology, An-Najah National University, Nablus P.O. Box 7, Palestine
- Correspondence:
| | - Juliana Aizawa
- Laboratory for Microbiology, Parasitology and Hygiene (LMPH), Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, University of Antwerp, Universiteitsplein 1 S.7, 2610 Wilrijk, Belgium; (J.A.); (P.C.)
| | - Clara Guarch-Pérez
- Department of Medical Microbiology and Infection Prevention, Amsterdam Institute for Infection and Immunity, Amsterdam UMC, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands; (C.G.-P.); (M.R.); (S.A.J.Z.)
| | - Żaneta Górecka
- Faculty of Materials Sciences and Engineering, Warsaw University of Technology, Woloska 141, 02-507 Warsaw, Poland; (Ż.G.); (E.C.); (W.Ś.)
- Centre for Advanced Materials and Technologies CEZAMAT, Warsaw University of Technology, Poleczki 19, 02-822 Warsaw, Poland
| | - Lars Christophersen
- Department for Clinical Microbiology, Rigshospitalet, Henrik Harpestrengsvej 4A, Afsnit 93.01, 2100 Copenhagen, Denmark; (L.C.); (C.M.)
| | - Wim Martinet
- Laboratory of Physiopharmacology, University of Antwerp, Universiteitsplein 1 T.2, 2610 Wilrijk, Belgium;
| | - Emilia Choińska
- Faculty of Materials Sciences and Engineering, Warsaw University of Technology, Woloska 141, 02-507 Warsaw, Poland; (Ż.G.); (E.C.); (W.Ś.)
| | - Martijn Riool
- Department of Medical Microbiology and Infection Prevention, Amsterdam Institute for Infection and Immunity, Amsterdam UMC, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands; (C.G.-P.); (M.R.); (S.A.J.Z.)
| | - Bart Verleije
- Voxdale bv, Bijkhoevelaan 32, 2110 Wijnegem, Belgium; (B.V.); (K.B.)
| | - Koen Beyers
- Voxdale bv, Bijkhoevelaan 32, 2110 Wijnegem, Belgium; (B.V.); (K.B.)
| | - Claus Moser
- Department for Clinical Microbiology, Rigshospitalet, Henrik Harpestrengsvej 4A, Afsnit 93.01, 2100 Copenhagen, Denmark; (L.C.); (C.M.)
| | - Wojciech Święszkowski
- Faculty of Materials Sciences and Engineering, Warsaw University of Technology, Woloska 141, 02-507 Warsaw, Poland; (Ż.G.); (E.C.); (W.Ś.)
| | - Sebastian A. J. Zaat
- Department of Medical Microbiology and Infection Prevention, Amsterdam Institute for Infection and Immunity, Amsterdam UMC, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands; (C.G.-P.); (M.R.); (S.A.J.Z.)
| | - Paul Cos
- Laboratory for Microbiology, Parasitology and Hygiene (LMPH), Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, University of Antwerp, Universiteitsplein 1 S.7, 2610 Wilrijk, Belgium; (J.A.); (P.C.)
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18
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Greene AF, Vaidya A, Collet C, Wade KR, Patel M, Gaugler M, West M, Petcu M, Parker K. 3D-Printed Enzyme-Embedded Plastics. Biomacromolecules 2021; 22:1999-2009. [PMID: 33870685 DOI: 10.1021/acs.biomac.1c00105] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A simple and environmentally friendly approach toward the thermoplastic processing of rapidly degradable plastic-enzyme composites using three-dimensional (3D) printing techniques is described. Polycaprolactone/Amano lipase (PCL/AL) composite films (10 mm × 10 mm; height [h] = ∼400 μm) with an AL loading of 0.1, 1.0, and 5.0% were prepared via 3D printing techniques that entail direct mixing in the solid state and thermal layer-by-layer extrusion. It was found that AL can tolerate in situ processing temperatures up to 130 °C in the solid-state for 60 min without loss of enzymatic activity. The composites were degraded in phosphate buffer (8 mg/mL, composite to buffer) for 7 days at 37 °C and the resulting average percent total weight loss (WLavg %) was found to be 5.2, 92.9, and 100%, for the 0.1, 1.0, and 5.0% films, respectively. The degradation rates of PCL/AL composites were found to be faster than AL applied externally in the buffer. Thicker PCL/AL 1.0% films (10 mm × 10 mm; h = ∼500 μm) were also degraded over a 7 day period to examine how the weight loss occurs over time with 3.0, 18.1, 36.4, 46.4, and 70.2% weight loss for days 1, 2, 3, 4, and 7, respectively. Differential scanning calorimetry (DSC) analysis shows that the film's percent crystallinity (Dxtal%) increases over time with Dxtal% = 46.5 for day 0 and 53.1% for day 7. Scanning electron microscopy (SEM) analysis found that film erosion begins at the surface and that water can penetrate the interior via surface pores activating the enzymes embedded in the film. Controlled release experiments utilizing dye-loaded PCL/AL/dye (AL = 1.0%; dye = 0.1%) composites were degraded over a 7 day period with the bulk of the dye released by the fourth day. The PCL/AL multimaterial objects containing AL-resistant polylactic acid (PLA) were also printed and degraded to demonstrate the application of this material on more complex structures.
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Affiliation(s)
- Angelique F Greene
- Scion, Te Papa Tipu Innovation Park, 49 Sala Street, Rotorua 3010, New Zealand
| | - Alankar Vaidya
- Scion, Te Papa Tipu Innovation Park, 49 Sala Street, Rotorua 3010, New Zealand
| | - Christophe Collet
- Scion, Te Papa Tipu Innovation Park, 49 Sala Street, Rotorua 3010, New Zealand
| | - Kelly R Wade
- Scion, Te Papa Tipu Innovation Park, 49 Sala Street, Rotorua 3010, New Zealand
| | - Meeta Patel
- Scion, Te Papa Tipu Innovation Park, 49 Sala Street, Rotorua 3010, New Zealand
| | - Marc Gaugler
- Scion, Te Papa Tipu Innovation Park, 49 Sala Street, Rotorua 3010, New Zealand
| | - Mark West
- Scion, Te Papa Tipu Innovation Park, 49 Sala Street, Rotorua 3010, New Zealand
| | - Miruna Petcu
- Scion, Te Papa Tipu Innovation Park, 49 Sala Street, Rotorua 3010, New Zealand
| | - Kate Parker
- Scion, Te Papa Tipu Innovation Park, 49 Sala Street, Rotorua 3010, New Zealand
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19
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Krieghoff J, Rost J, Kohn-Polster C, Müller BM, Koenig A, Flath T, Schulz-Siegmund M, Schulze FP, Hacker MC. Extrusion-Printing of Multi-Channeled Two-Component Hydrogel Constructs from Gelatinous Peptides and Anhydride-Containing Oligomers. Biomedicines 2021; 9:biomedicines9040370. [PMID: 33916295 PMCID: PMC8065526 DOI: 10.3390/biomedicines9040370] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 03/27/2021] [Accepted: 03/29/2021] [Indexed: 01/22/2023] Open
Abstract
The performance of artificial nerve guidance conduits (NGC) in peripheral nerve regeneration can be improved by providing structures with multiple small channels instead of a single wide lumen. 3D-printing is a strategy to access such multi-channeled structures in a defined and reproducible way. This study explores extrusion-based 3D-printing of two-component hydrogels from a single cartridge printhead into multi-channeled structures under aseptic conditions. The gels are based on a platform of synthetic, anhydride-containing oligomers for cross-linking of gelatinous peptides. Stable constructs with continuous small channels and a variety of footprints and sizes were successfully generated from formulations containing either an organic or inorganic gelation base. The adjustability of the system was investigated by varying the cross-linking oligomer and substituting the gelation bases controlling the cross-linking kinetics. Formulations with organic N-methyl-piperidin-3-ol and inorganic K2HPO4 yielded hydrogels with comparable properties after manual processing and extrusion-based 3D-printing. The slower reaction kinetics of formulations with K2HPO4 can be beneficial for extending the time frame for printing. The two-component hydrogels displayed both slow hydrolytic and activity-dependent enzymatic degradability. Together with satisfying in vitro cell proliferation data, these results indicate the suitability of our cross-linked hydrogels as multi-channeled NGC for enhanced peripheral nerve regeneration.
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Affiliation(s)
- Jan Krieghoff
- Institute of Pharmacy, Pharmaceutical Technology, Faculty of Medicine, University of Leipzig, Eilenburger Straße 15a, 04317 Leipzig, Germany; (J.K.); (M.S.-S.)
| | - Johannes Rost
- Department of Mechanical and Energy Engineering, Leipzig University of Applied Sciences (HTWK Leipzig), Karl-Liebknecht-Straße 134, 04277 Leipzig, Germany; (T.F.); (F.-P.S.)
| | - Caroline Kohn-Polster
- Institute of Pharmacy, Pharmaceutical Technology, Faculty of Medicine, University of Leipzig, Eilenburger Straße 15a, 04317 Leipzig, Germany; (J.K.); (M.S.-S.)
| | - Benno M. Müller
- Institute of Pharmacy, Pharmaceutical Technology, Faculty of Medicine, University of Leipzig, Eilenburger Straße 15a, 04317 Leipzig, Germany; (J.K.); (M.S.-S.)
| | - Andreas Koenig
- Department of Prosthodontics and Materials Science, University of Leipzig, Liebigstraße 12, 04103 Leipzig, Germany;
| | - Tobias Flath
- Department of Mechanical and Energy Engineering, Leipzig University of Applied Sciences (HTWK Leipzig), Karl-Liebknecht-Straße 134, 04277 Leipzig, Germany; (T.F.); (F.-P.S.)
| | - Michaela Schulz-Siegmund
- Institute of Pharmacy, Pharmaceutical Technology, Faculty of Medicine, University of Leipzig, Eilenburger Straße 15a, 04317 Leipzig, Germany; (J.K.); (M.S.-S.)
| | - Fritz-Peter Schulze
- Department of Mechanical and Energy Engineering, Leipzig University of Applied Sciences (HTWK Leipzig), Karl-Liebknecht-Straße 134, 04277 Leipzig, Germany; (T.F.); (F.-P.S.)
| | - Michael C. Hacker
- Institute of Pharmacy, Pharmaceutical Technology, Faculty of Medicine, University of Leipzig, Eilenburger Straße 15a, 04317 Leipzig, Germany; (J.K.); (M.S.-S.)
- Institute of Pharmaceutics and Biopharmaceutics, Heinrich Heine University, Universitätsstraße 1, 40225 Düsseldorf, Germany
- Correspondence: ; Tel.: +49-211-81-14220
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20
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Long Q, Wu B, Yang Y, Wang S, Shen Y, Bao Q, Xu F. Nerve guidance conduit promoted peripheral nerve regeneration in rats. Artif Organs 2021; 45:616-624. [PMID: 33270261 DOI: 10.1111/aor.13881] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 11/19/2020] [Accepted: 11/27/2020] [Indexed: 12/13/2022]
Abstract
Nerve growth factor (NGF) is important for peripheral nerve regeneration. However, its short half-life and rapid diffusion in body fluids limit its clinical efficacy. Collagen has favorable biocompatibility and biodegradability, and weak immunogenicity. Because it possesses an NGF binding domain, we cross-linked heparin to collagen tubes to construct nerve guidance conduits for delivering NGF. The conduits were implanted to bridge a facial nerve defect in rats. Histological and functional analyses were performed to assess the effect of the nerve guidance conduit on facial nerve regeneration. Heparin enhanced the binding of NGF to collagen while retaining its bioactivity. Also, the nerve guidance conduit significantly promoted axonal growth and Schwan cell proliferation at 12 weeks after surgery. The nerve regeneration and functional recovery outcomes using the nerve guidance conduit were similar to those of autologous nerve grafting. Therefore, the nerve guidance conduit may promote safer nerve regeneration.
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Affiliation(s)
- Qingshan Long
- Department of Neurosurgery, Huizhou Third People's Hospital, Guangzhou Medical University, Huizhou, China
| | - Bingshan Wu
- Department of Neurosurgery, First Affiliated Hospital of Anhui Medical University, Hefei City, China
| | - Yu Yang
- Department of Psychiatry, Zigong Mental Health Center, Zigong City, China
| | - Shanhong Wang
- Department of Psychiatry, Zigong Mental Health Center, Zigong City, China
| | - Yiwen Shen
- Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Qinghua Bao
- Department of Neurosurgery, Affiliated Aoyang Hospital of Jiangsu University, Zhangjiagang, China
| | - Feng Xu
- Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
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21
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Mendibil X, González-Pérez F, Bazan X, Díez-Ahedo R, Quintana I, Rodríguez FJ, Basnett P, Nigmatullin R, Lukasiewicz B, Roy I, Taylor CS, Glen A, Claeyssens F, Haycock JW, Schaafsma W, González E, Castro B, Duffy P, Merino S. Bioresorbable and Mechanically Optimized Nerve Guidance Conduit Based on a Naturally Derived Medium Chain Length Polyhydroxyalkanoate and Poly(ε-Caprolactone) Blend. ACS Biomater Sci Eng 2021; 7:672-689. [DOI: 10.1021/acsbiomaterials.0c01476] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Xabier Mendibil
- Tekniker, Basque Research and Technology Alliance (BRTA), C/ Iñaki Goenaga 5, 20600 Eibar, Spain
| | - Francisco González-Pérez
- Laboratory of Molecular Neurology, Hospital Nacional de Parapléjicos, Finca La Peraleda S/n, 45071 Toledo, Spain
| | - Xabier Bazan
- Tekniker, Basque Research and Technology Alliance (BRTA), C/ Iñaki Goenaga 5, 20600 Eibar, Spain
| | - Ruth Díez-Ahedo
- Tekniker, Basque Research and Technology Alliance (BRTA), C/ Iñaki Goenaga 5, 20600 Eibar, Spain
| | - Iban Quintana
- Tekniker, Basque Research and Technology Alliance (BRTA), C/ Iñaki Goenaga 5, 20600 Eibar, Spain
| | - Francisco Javier Rodríguez
- Laboratory of Molecular Neurology, Hospital Nacional de Parapléjicos, Finca La Peraleda S/n, 45071 Toledo, Spain
| | - Pooja Basnett
- School of Life Sciences, College of Liberal Arts and Sciences, University of Westminster, 115 New Cavendish Street, London W1W 6UW, U.K
| | - Rinat Nigmatullin
- School of Life Sciences, College of Liberal Arts and Sciences, University of Westminster, 115 New Cavendish Street, London W1W 6UW, U.K
| | - Barbara Lukasiewicz
- School of Life Sciences, College of Liberal Arts and Sciences, University of Westminster, 115 New Cavendish Street, London W1W 6UW, U.K
| | - Ipsita Roy
- Department of Materials Science and Engineering, The University of Sheffield, Sheffield S3 7HQ, U.K
| | - Caroline S. Taylor
- Department of Materials Science and Engineering, The University of Sheffield, Sheffield S3 7HQ, U.K
| | - Adam Glen
- Department of Materials Science and Engineering, The University of Sheffield, Sheffield S3 7HQ, U.K
| | - Frederik Claeyssens
- Department of Materials Science and Engineering, The University of Sheffield, Sheffield S3 7HQ, U.K
| | - John W. Haycock
- Department of Materials Science and Engineering, The University of Sheffield, Sheffield S3 7HQ, U.K
| | - Wandert Schaafsma
- Histocell S.L., Parque Tecnológico de Bizkaia, 801 A, 2, 48160 Derio, Spain
| | - Eva González
- Histocell S.L., Parque Tecnológico de Bizkaia, 801 A, 2, 48160 Derio, Spain
| | - Begoña Castro
- Histocell S.L., Parque Tecnológico de Bizkaia, 801 A, 2, 48160 Derio, Spain
| | - Patrick Duffy
- Ashland Specialties Ireland, Synergy Centre, Dublin Road, Petitswood Mullingar, Co. Westmeath N91 F6PD, Ireland
| | - Santos Merino
- Tekniker, Basque Research and Technology Alliance (BRTA), C/ Iñaki Goenaga 5, 20600 Eibar, Spain
- Departamento de Electricidad y Electrónica, Universidad del País Vasco UPV/EHU, 48940 Leioa, Spain
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22
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Zhang RC, Du WQ, Zhang JY, Yu SX, Lu FZ, Ding HM, Cheng YB, Ren C, Geng DQ. Mesenchymal stem cell treatment for peripheral nerve injury: a narrative review. Neural Regen Res 2021; 16:2170-2176. [PMID: 33818489 PMCID: PMC8354135 DOI: 10.4103/1673-5374.310941] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Peripheral nerve injuries occur as the result of sudden trauma and lead to reduced quality of life. The peripheral nervous system has an inherent capability to regenerate axons. However, peripheral nerve regeneration following injury is generally slow and incomplete that results in poor functional outcomes such as muscle atrophy. Although conventional surgical procedures for peripheral nerve injuries present many benefits, there are still several limitations including scarring, difficult accessibility to donor nerve, neuroma formation and a need to sacrifice the autologous nerve. For many years, other therapeutic approaches for peripheral nerve injuries have been explored, the most notable being the replacement of Schwann cells, the glial cells responsible for clearing out debris from the site of injury. Introducing cultured Schwann cells to the injured sites showed great benefits in promoting axonal regeneration and functional recovery. However, there are limited sources of Schwann cells for extraction and difficulties in culturing Schwann cells in vitro. Therefore, novel therapeutic avenues that offer maximum benefits for the treatment of peripheral nerve injuries should be investigated. This review focused on strategies using mesenchymal stem cells to promote peripheral nerve regeneration including exosomes of mesenchymal stem cells, nerve engineering using the nerve guidance conduits containing mesenchymal stem cells, and genetically engineered mesenchymal stem cells. We present the current progress of mesenchymal stem cell treatment of peripheral nerve injuries.
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Affiliation(s)
- Rui-Cheng Zhang
- Department of Neurology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu Province, China
| | - Wen-Qi Du
- Department of Human Anatomy, Xuzhou Medical University, Xuzhou, Jiangsu Province, China
| | - Jing-Yuan Zhang
- Department of Neurosurgery, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong Province, China
| | - Shao-Xia Yu
- Department of Neurology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong Province, China
| | - Fang-Zhi Lu
- Department of Neurology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu Province, China
| | - Hong-Mei Ding
- Department of Neurology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu Province, China
| | - Yan-Bo Cheng
- Department of Neurology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu Province, China
| | - Chao Ren
- Department of Neurology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong Province, China
| | - De-Qin Geng
- Department of Neurology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu Province, China
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23
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Go EJ, Kang EY, Lee SK, Park S, Kim JH, Park W, Kim IH, Choi B, Han DK. An osteoconductive PLGA scaffold with bioactive β-TCP and anti-inflammatory Mg(OH) 2 to improve in vivo bone regeneration. Biomater Sci 2020; 8:937-948. [PMID: 31833498 DOI: 10.1039/c9bm01864f] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Poly(lactic-co-glycolic acid) (PLGA) has been widely used as a biomaterial for pharmaceutical and medical applications. However, the decomposition products of PLGA are known to acidify the surrounding tissue of the implanted site, causing an inflammatory response. Previously, we developed PLGA/inorganic nanocomposites and optimized the amounts of inorganic compounds, β-tricalcium phosphate (β-TCP) and magnesium hydroxide [Mg(OH)2], in terms of osteogenesis of normal human osteoblasts and anti-inflammatory responses of preosteoclastic cells in vitro. In this study, the potential of the optimized PLGA/β-TCP/Mg(OH)2 nanocomposite (TCP/MH) to promote bone repair through osteoinductive, osteoconductive, and anti-inflammatory abilities was assessed using a bone defect in a rat humeral defect model. PLGA nanocomposites with or without inorganic compounds, PLGA, β-TCP, MH, and TCP/MH were prepared through one-step bulk modification using a twin-screw extruder. The resulting TCP/MH nanocomposite successfully enhanced the bone regeneration rate for allowing complete bone defect healing with significantly suppressed inflammatory responses. Taken together, the organic and inorganic bioactive nanocomposite developed in this study, TCP/MH, is a promising material in orthopedic implantation.
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Affiliation(s)
- Eun Jin Go
- Department of Biomedical Science, CHA University, 335 Pangyo-ro, Bundang-gu, Seongnam, Gyeonggi 13488, Republic of Korea.
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24
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Grafts of human adipose-derived stem cells into a biodegradable poly (acid lactic) conduit enhances sciatic nerve regeneration. Brain Res 2020; 1747:147026. [PMID: 32750328 DOI: 10.1016/j.brainres.2020.147026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 06/20/2020] [Accepted: 07/19/2020] [Indexed: 12/29/2022]
Abstract
Despite the regenerative potential of the Peripheral Nervous System (PNS), injuries with loss of a nerve segment make the functional recovery a challenge. This work aimed to investigate the effects of the association of biodegradable conduits of poly (lactic acid) (PLA) with human adipose-derived stem cells (hADSCs) on the regeneration of the sciatic nerve. C57BL / 6 male mice were submitted to sciatic nerve transection followed by tubulization with PLA conduit. Animals were allocated in two groups: the first received an injection of DMEM inside the conduit (DMEM) and the second received hADSCs inside it (hADSC). Sensory and motor functions were assessed by the pinprick test and electroneuromiography, respectively. To assess neuronal survival the retrograde tracer fluorogold was injected into the sciatic nerve distally to the lesion site. One week after that, animals were sacrificed, tissues harvested and processed for morphological evaluation. After eight weeks, all animals showed sensory recovery in the pinprick test and there was no significant difference between the two groups. The amplitude of the compound muscle action potential was higher in the hADSCs group. The number of myelinated nerve fibers, muscle cells and motor plates was higher in the hADSC group. There was also greater survival of sensory and motor neurons in the hADSC animals. These results suggest that the association of PLA conduit and cell therapy with hADSCs leads to a better functional and morphological recovery after sciatic nerve transection.
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Contreras A, Raxworthy MJ, Wood S, Tronci G. Hydrolytic Degradability, Cell Tolerance and On-Demand Antibacterial Effect of Electrospun Photodynamically Active Fibres. Pharmaceutics 2020; 12:E711. [PMID: 32751391 PMCID: PMC7465204 DOI: 10.3390/pharmaceutics12080711] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 07/22/2020] [Accepted: 07/24/2020] [Indexed: 01/17/2023] Open
Abstract
Photodynamically active fibres (PAFs) are a novel class of stimulus-sensitive systems capable of triggering antibiotic-free antibacterial effect on-demand when exposed to light. Despite their relevance in infection control, however, the broad clinical applicability of PAFs has not yet been fully realised due to the limited control in fibrous microstructure, cell tolerance and antibacterial activity in the physiologic environment. We addressed this challenge by creating semicrystalline electrospun fibres with varying content of poly[(l-lactide)-co-(glycolide)] (PLGA), poly(ε-caprolactone) (PCL) and methylene blue (MB), whereby the effect of polymer morphology, fibre composition and photosensitiser (PS) uptake on wet state fibre behaviour and functions was studied. The presence of crystalline domains and PS-polymer secondary interactions proved key to accomplishing long-lasting fibrous microstructure, controlled mass loss and controlled MB release profiles (37 °C, pH 7.4, 8 weeks). PAFs with equivalent PLGA:PCL weight ratio successfully promoted attachment and proliferation of L929 cells over a 7-day culture with and without light activation, while triggering up to 2.5 and 4 log reduction in E. coli and S. mutans viability, respectively. These results support the therapeutic applicability of PAFs for frequently encountered bacterial infections, opening up new opportunities in photodynamic fibrous systems with integrated wound healing and infection control capabilities.
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Affiliation(s)
- Amy Contreras
- Institute of Medical and Biological Engineering, University of Leeds, Leeds LS2 9JT, UK; (A.C.); (M.J.R.)
| | - Michael J. Raxworthy
- Institute of Medical and Biological Engineering, University of Leeds, Leeds LS2 9JT, UK; (A.C.); (M.J.R.)
- Neotherix Ltd., The Hiscox Building, Peasholme Green, York YO1 7PR, UK
| | - Simon Wood
- School of Dentistry, St. James’s University Hospital, University of Leeds, Leeds LS9 7TF, UK;
| | - Giuseppe Tronci
- School of Dentistry, St. James’s University Hospital, University of Leeds, Leeds LS9 7TF, UK;
- Clothworkers Centre for Textile Materials Innovation for Healthcare, School of Design, University of Leeds, Leeds LS2 9JT, UK
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Fibroblasts Colonizing Nerve Conduits Express High Levels of Soluble Neuregulin1, a Factor Promoting Schwann Cell Dedifferentiation. Cells 2020; 9:cells9061366. [PMID: 32492853 PMCID: PMC7349576 DOI: 10.3390/cells9061366] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 05/26/2020] [Accepted: 05/30/2020] [Indexed: 12/12/2022] Open
Abstract
Conduits for the repair of peripheral nerve gaps are a good alternative to autografts as they provide a protected environment and a physical guide for axonal re-growth. Conduits require colonization by cells involved in nerve regeneration (Schwann cells, fibroblasts, endothelial cells, macrophages) while in the autograft many cells are resident and just need to be activated. Since it is known that soluble Neuregulin1 (sNRG1) is released after injury and plays an important role activating Schwann cell dedifferentiation, its expression level was investigated in early regeneration steps (7, 14, 28 days) inside a 10 mm chitosan conduit used to repair median nerve gaps in Wistar rats. In vivo data show that sNRG1, mainly the isoform α, is highly expressed in the conduit, together with a fibroblast marker, while Schwann cell markers, including NRG1 receptors, were not. Primary culture analysis shows that nerve fibroblasts, unlike Schwann cells, express high NRG1α levels, while both express NRG1β. These data suggest that sNRG1 might be mainly expressed by fibroblasts colonizing nerve conduit before Schwann cells. Immunohistochemistry analysis confirmed NRG1 and fibroblast marker co-localization. These results suggest that fibroblasts, releasing sNRG1, might promote Schwann cell dedifferentiation to a “repair” phenotype, contributing to peripheral nerve regeneration.
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