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Li M, Cheng X, Feng S, Zhu H, Lu P, Zhang P, Cai X, Qiao P, Gu X, Wang G, Xue C, Wang H. Skin precursor‐derived Schwann cells accelerate in vivo prevascularization of tissue‐engineered nerves to promote peripheral nerve regeneration. Glia 2023; 71:1755-1769. [PMID: 36971489 DOI: 10.1002/glia.24367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 03/12/2023] [Accepted: 03/16/2023] [Indexed: 03/29/2023]
Abstract
Prevascularization strategies have become a hot spot in tissue engineering. As one of the potential candidates for seed cells, skin precursor-derived Schwann cells (SKP-SCs) were endowed with a new role to more efficiently construct prevascularized tissue-engineered peripheral nerves. The silk fibroin scaffolds seeded with SKP-SCs were prevascularized through subcutaneously implantation, which was further assembled with the SKP-SC-containing chitosan conduit. SKP-SCs expressed pro-angiogenic factors in vitro and in vivo. SKP-SCs significantly accelerated the satisfied prevascularization in vivo of silk fibroin scaffolds compared with VEGF. Moreover, the NGF expression revealed that pregenerated blood vessels adapted to the nerve regeneration microenvironment through reeducation. The short-term nerve regeneration of SKP-SCs-prevascularization was obviously superior to that of non-prevascularization. At 12 weeks postinjury, both SKP-SCs-prevascularization and VEGF-prevascularization significantly improved nerve regeneration with a comparable degree. Our figures provide a new enlightenment for the optimization of prevascularization strategies and how to further utilize tissue engineering for better repair.
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Affiliation(s)
- Meiyuan Li
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, China
| | - Xiyang Cheng
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, China
| | - Shuyue Feng
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, China
| | - Hui Zhu
- Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, China
| | - Panjian Lu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, China
| | - Ping Zhang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, China
| | - Xiaodong Cai
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, China
| | - Pingping Qiao
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, China
| | - Xiaosong Gu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, China
- Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, China
| | - Gang Wang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, China
| | - Chengbin Xue
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, China
- Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, China
| | - Hongkui Wang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, China
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Wang L, Yan Z, Xiang P, Yan L, Zhang Z. MR microneurography of human peripheral fascicles using a clinical 3T MR scanner. J Neuroradiol 2023; 50:253-257. [PMID: 36609069 DOI: 10.1016/j.neurad.2022.11.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 11/12/2022] [Accepted: 11/15/2022] [Indexed: 01/06/2023]
Abstract
BACKGROUND AND PURPOSE Knowledge of nerve fascicular structures is essential for managing peripheral nerve disorders. This study aimed to investigate the feasibility of z-axis high-resolution magnetic resonance (MR) microneurography (zH-MRMN) in displaying the three-dimensional structures of tibial nerve fascicles in vivo using a 3T MR scanner. MATERIALS AND METHODS Twelve volunteers underwent z-axis conventional-resolution MR microneurography (zC-MRMN) and zH-MRMN of tibial nerves. The visibility scores of the nerve fascicles (VSNFs) on axial zC-MRMN images and axial zH-MRMN multiplanar reformation (MPR) images were compared. The nerve fascicle appearances on the longitudinal zH-MRMN MPR images were described. RESULTS In the nerve segments whose long axes were perpendicular to the imaging planes of both zC-MRMN and zH-MRMN, the VSNFs were not significantly different between the axial images of the two modalities (P = 0.083). In the nerve segments whose long axes were not perpendicular to the imaging planes of zC-MRMN, the VSNFs on the axial zC-MRMN images were significantly lower than those on the axial zH-MRMN MPR images that were angled perpendicular to the long axis of the tibial nerve (P < 0.001). CONCLUSIONS The longitudinal zH-MRMN MPR images clearly displayed the changing features of the intraneural fascicles as well as the gross morphology of the tibial nerves. zH-MRMN can clearly delineate the topography of the tibial nerve fascicles in vivo through use of a 3T MR scanner.
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Affiliation(s)
- Liqin Wang
- Department of Medical Imaging, First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Zi Yan
- Department of Medical Imaging, First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Pei Xiang
- Department of Medical Imaging, First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Liwei Yan
- Department of Microsurgery, Trauma and Hand Surgery, First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China.
| | - Zhaohui Zhang
- Department of Medical Imaging, First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China.
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Yan L, Entezari A, Zhang Z, Zhong J, Liang J, Li Q, Qi J. An experimental and numerical study of the microstructural and biomechanical properties of human peripheral nerve endoneurium for the design of tissue scaffolds. Front Bioeng Biotechnol 2022; 10:1029416. [PMID: 36545684 PMCID: PMC9762494 DOI: 10.3389/fbioe.2022.1029416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 11/14/2022] [Indexed: 12/12/2022] Open
Abstract
Biomimetic design of scaffold architectures represents a promising strategy to enable the repair of tissue defects. Natural endoneurium extracellular matrix (eECM) exhibits a sophisticated microstructure and remarkable microenvironments conducive for guiding neurite regeneration. Therefore, the analysis of eECM is helpful to the design of bionic scaffold. Unfortunately, a fundamental lack of understanding of the microstructural characteristics and biomechanical properties of the human peripheral nerve eECM exists. In this study, we used microscopic computed tomography (micro-CT) to reconstruct a three-dimensional (3D) eECM model sourced from mixed nerves. The tensile strength and effective modulus of human fresh nerve fascicles were characterized experimentally. Permeability was calculated from a computational fluid dynamic (CFD) simulation of the 3D eECM model. Fluid flow of acellular nerve fascicles was tested experimentally to validate the permeability results obtained from CFD simulations. The key microstructural parameters, such as porosity is 35.5 ± 1.7%, tortuosity in endoneurium (X axis is 1.26 ± 0.028, Y axis is 1.26 ± 0.020 and Z axis is 1.17 ± 0.03, respectively), tortuosity in pore (X axis is 1.50 ± 0.09, Y axis is 1.44 ± 0.06 and Z axis is 1.13 ± 0.04, respectively), surface area-to-volume ratio (SAVR) is 0.165 ± 0.007 μm-1 and pore size is 11.8 ± 2.8 μm, respectively. These were characterized from the 3D eECM model and may exert different effects on the stiffness and permeability. The 3D microstructure of natural peripheral nerve eECM exhibits relatively lower permeability (3.10 m2 × 10-12 m2) than other soft tissues. These key microstructural and biomechanical parameters may play an important role in the design and fabrication of intraluminal guidance scaffolds to replace natural eECM. Our findings can aid the development of regenerative therapies and help improve scaffold design.
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Affiliation(s)
- Liwei Yan
- Department of Microsurgery, Trauma and Hand Surgery, The First Affiliated Hospital of Sun Yat‐sen University, Guangzhou, China
| | - Ali Entezari
- School of Biomedical Engineering, University of Technology Sydney, Ultimo, NSW, Australia,School of Aerospace, Mechanical and Mechatronic Engineering, University of Sydney, Sydney, NSW, Australia
| | - Zhongpu Zhang
- School of Computing, Engineering and Mathematics, Western Sydney University, Penrith, NSW, Australia
| | - Jingxiao Zhong
- School of Aerospace, Mechanical and Mechatronic Engineering, University of Sydney, Sydney, NSW, Australia
| | - Jing Liang
- Department of Microsurgery, Trauma and Hand Surgery, The First Affiliated Hospital of Sun Yat‐sen University, Guangzhou, China
| | - Qing Li
- School of Aerospace, Mechanical and Mechatronic Engineering, University of Sydney, Sydney, NSW, Australia,*Correspondence: Jian Qi, ; Qing Li,
| | - Jian Qi
- Department of Microsurgery, Trauma and Hand Surgery, The First Affiliated Hospital of Sun Yat‐sen University, Guangzhou, China,Guangdong Provincial Key Laboratory for Orthopedics and Traumatology, Guangzhou, China,*Correspondence: Jian Qi, ; Qing Li,
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Mani MP, Sadia M, Jaganathan SK, Khudzari AZ, Supriyanto E, Saidin S, Ramakrishna S, Ismail AF, Faudzi AAM. A review on 3D printing in tissue engineering applications. JOURNAL OF POLYMER ENGINEERING 2022. [DOI: 10.1515/polyeng-2021-0059] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Abstract
In tissue engineering, 3D printing is an important tool that uses biocompatible materials, cells, and supporting components to fabricate complex 3D printed constructs. This review focuses on the cytocompatibility characteristics of 3D printed constructs, made from different synthetic and natural materials. From the overview of this article, inkjet and extrusion-based 3D printing are widely used methods for fabricating 3D printed scaffolds for tissue engineering. This review highlights that scaffold prepared by both inkjet and extrusion-based 3D printing techniques showed significant impact on cell adherence, proliferation, and differentiation as evidenced by in vitro and in vivo studies. 3D printed constructs with growth factors (FGF-2, TGF-β1, or FGF-2/TGF-β1) enhance extracellular matrix (ECM), collagen I content, and high glycosaminoglycan (GAG) content for cell growth and bone formation. Similarly, the utilization of 3D printing in other tissue engineering applications cannot be belittled. In conclusion, it would be interesting to combine different 3D printing techniques to fabricate future 3D printed constructs for several tissue engineering applications.
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Affiliation(s)
- Mohan Prasath Mani
- School of Biomedical Engineering and Health Sciences, Faculty of Engineering , Universiti Teknologi Malaysia , Skudai 81310 , Malaysia
| | - Madeeha Sadia
- School of Biomedical Engineering and Health Sciences, Faculty of Engineering , Universiti Teknologi Malaysia , Skudai 81310 , Malaysia
- Department of Biomedical Engineering, Faculty of Electrical and Computer Engineering , NED University of Engineering and Technology , Karachi , Pakistan
| | - Saravana Kumar Jaganathan
- Department of Engineering, Faculty of Science and Engineering , University of Hull , Hull HU6 7RX , UK
- Centre for Artificial Intelligence and Robotics, Universiti Teknologi Malaysia , Kuala Lumpur 54100 , Malaysia
- School of Electrical Engineering, Faculty of Engineering , Universiti Teknologi Malaysia , Johor Bahru 81310 , Malaysia
| | - Ahmad Zahran Khudzari
- School of Biomedical Engineering and Health Sciences, Faculty of Engineering , Universiti Teknologi Malaysia , Skudai 81310 , Malaysia
- IJN-UTM Cardiovascular Engineering Center, Institute of Human Centered Engineering, Universiti Teknologi Malaysia , Skudai 81310 , Malaysia
| | - Eko Supriyanto
- School of Biomedical Engineering and Health Sciences, Faculty of Engineering , Universiti Teknologi Malaysia , Skudai 81310 , Malaysia
- IJN-UTM Cardiovascular Engineering Center, Institute of Human Centered Engineering, Universiti Teknologi Malaysia , Skudai 81310 , Malaysia
| | - Syafiqah Saidin
- School of Biomedical Engineering and Health Sciences, Faculty of Engineering , Universiti Teknologi Malaysia , Skudai 81310 , Malaysia
- IJN-UTM Cardiovascular Engineering Center, Institute of Human Centered Engineering, Universiti Teknologi Malaysia , Skudai 81310 , Malaysia
| | - Seeram Ramakrishna
- Department of Mechanical Engineering , Center for Nanofibers & Nanotechnology Initiative, National University of Singapore , Singapore , Singapore
| | - Ahmad Fauzi Ismail
- Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia , Johor Bahru 81310 , Malaysia
| | - Ahmad Athif Mohd Faudzi
- Centre for Artificial Intelligence and Robotics, Universiti Teknologi Malaysia , Kuala Lumpur 54100 , Malaysia
- School of Electrical Engineering, Faculty of Engineering , Universiti Teknologi Malaysia , Johor Bahru 81310 , Malaysia
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