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Xie C, Chen Y, Wang L, Liao K, Xue B, Han Y, Li L, Jiang Q. Recent research of peptide-based hydrogel in nervous regeneration. Bioact Mater 2024; 40:503-523. [PMID: 39040568 PMCID: PMC11261279 DOI: 10.1016/j.bioactmat.2024.06.013] [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: 04/03/2024] [Revised: 06/02/2024] [Accepted: 06/07/2024] [Indexed: 07/24/2024] Open
Abstract
Neurological disorders exert significantly affect the quality of life for patients, necessitating effective strategies for nerve regeneration. Both traditional autologous nerve transplantation and emerging therapeutic approaches encounter scientific challenges due to the complex nature of the nervous system and the unsuitability of the surrounding environment for cell transplantation. Tissue engineering techniques offer a promising path for neurotherapy. Successful neural tissue engineering relies on modulating cell differentiation behavior and tissue repair by developing biomaterials that mimic the natural extracellular matrix (ECM) and establish a three-dimensional microenvironment. Peptide-based hydrogels have emerged as a potent option among these biomaterials due to their ability to replicate the structure and complexity of the ECM. This review aims to explore the diverse range of peptide-based hydrogels used in nerve regeneration with a specific focus on dipeptide hydrogels, tripeptide hydrogels, oligopeptide hydrogels, multidomain peptides (MDPs), and amphiphilic peptide hydrogels (PAs). Peptide-based hydrogels offer numerous advantages, including biocompatibility, structural diversity, adjustable mechanical properties, and degradation without adverse effects. Notably, hydrogels formed from self-assembled polypeptide nanofibers, derived from amino acids, show promising potential in engineering neural tissues, outperforming conventional materials like alginate, poly(ε-caprolactone), and polyaniline. Additionally, the simple design and cost-effectiveness of dipeptide-based hydrogels have enabled the creation of various functional supramolecular structures, with significant implications for nervous system regeneration. These hydrogels are expected to play a crucial role in future neural tissue engineering research. This review aims to highlight the benefits and potential applications of peptide-based hydrogels, contributing to the advancement of neural tissue engineering.
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Affiliation(s)
- Chunmei Xie
- State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China
| | - Yueyang Chen
- State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China
| | - Lang Wang
- State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China
| | - Kin Liao
- Advanced Digital and Additive Manufacturing Center, Khalifa University of Science and Technology, Po Box 127788, Abu Dhabi, United Arab Emirates
| | - Bin Xue
- National Laboratory of Solid State Microstructures, Department of Physics, Nanjing University, Nanjing, China
| | - Yulong Han
- State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China
| | - Lan Li
- State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Drum Tower Hospital Affiliated to Medical School of Nanjing University, Nanjing, China
- Jiangsu Engineering Research Center for 3D Bioprinting, Nanjing, China
- Institute of Medical 3D Printing, Nanjing University, Nanjing, China
| | - Qing Jiang
- State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Drum Tower Hospital Affiliated to Medical School of Nanjing University, Nanjing, China
- Jiangsu Engineering Research Center for 3D Bioprinting, Nanjing, China
- Institute of Medical 3D Printing, Nanjing University, Nanjing, China
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Feng F, Song X, Tan Z, Tu Y, Xiao L, Xie P, Ma Y, Sun X, Ma J, Rong L, He L. Cooperative assembly of a designer peptide and silk fibroin into hybrid nanofiber gels for neural regeneration after spinal cord injury. SCIENCE ADVANCES 2023; 9:eadg0234. [PMID: 37352345 PMCID: PMC10289662 DOI: 10.1126/sciadv.adg0234] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 05/17/2023] [Indexed: 06/25/2023]
Abstract
Local reconstruction of a permissive environment with biomaterials is a promising strategy to treat spinal cord injury (SCI). We reported a hybrid hydrogel fabricated from a small functional self-assembling peptide (F-SAP) and large silk fibroin (SF). The diffusion of SF micelles into F-SAP solution was driven by the dynamic synergy between osmotic pressure and F-SAP/SF electrostatic interactions, resulting in the rearrangement of SF micelles and the formation of rod-like filaments with axes nearly perpendicular to F-SAP nanofibers. Spectroscopy analysis, including circular dichroism, Raman and fluorescence, indicated conformation changes of SF from random coil to β sheet, which contributed to enhanced mechanical properties of the resultant hybrid hydrogel. Furthermore, the F-SAP/SF hybrid hydrogel coupled with controlled release of NT-3 provided a permissive environment for neural regeneration by providing nanofibrous substrates for regenerating axons, inflammatory modulation and remyelination, consequently resulting in improved locomotion and electrophysiological properties. This hydrogel could be used as a long-term stent in vivo for the treatment of SCI.
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Affiliation(s)
- Feng Feng
- Department of Spine Surgery, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Xiyong Song
- Institute of Biotechnology, Helsinki Institute of Life Science (HiLIFE), University of Helsinki, Helsinki 00014, Finland
| | - Zan Tan
- Department of Spine Surgery, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Yujie Tu
- College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Longyou Xiao
- Department of Spine Surgery, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Pengfei Xie
- College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Yahao Ma
- College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Xiumin Sun
- Department of Spine Surgery, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Junwu Ma
- Department of Spine Surgery, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Limin Rong
- Department of Spine Surgery, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Liumin He
- Department of Spine Surgery, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
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Kong Y, Xu J, Han Q, Zheng T, Wu L, Li G, Yang Y. Electrospinning porcine decellularized nerve matrix scaffold for peripheral nerve regeneration. Int J Biol Macromol 2022; 209:1867-1881. [PMID: 35489621 DOI: 10.1016/j.ijbiomac.2022.04.161] [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: 11/16/2021] [Revised: 04/09/2022] [Accepted: 04/21/2022] [Indexed: 12/27/2022]
Abstract
The composition and spatial structure of bioscaffold materials are essential for constructing tissue regeneration microenvironments. In this study, by using an electrospinning technique without any other additives, we successfully developed pure porcine decellularized nerve matrix (xDNME) conduits. The developed xDNME was composed of an obvious decellularized matrix fiber structure and effectively retained the natural components in the decellularized matrix of the nerve tissue. The xDNME conduit exhibited superior biocompatibility and the ability to overcome inter-species barriers. In vivo, after 12 weeks of implantation, xDNME significantly promoted the regeneration of rat sciatic nerve. The regenerated nerve fibers completely connected the two ends of the nerve defect, which were about 8 mm apart. The xDNME and xDNME-OPC groups showed myelin structures in the regenerated nerve fibers. In the xDNME group, the average thickness of the regenerated myelin sheath was 0.640 ± 0.013 μm, which was almost comparable to that in the autologous nerve group (0.646 ± 0.017 μm). Electrophysiological experiments revealed that both of the regenerated nerve fibers in the xDNME and xDNME-OPC groups had excellent abilities to transmit electrical signals. Respectively, the average conduction velocities of xDNME and xDNME-OPC were 8.86 ± 3.57 m/s and 6.99 ± 3.43 m/s. In conclusion, the xDNME conduits have a great potential for clinical treatment of peripheral nerve injuries, which may clinically transform peripheral nerve related regenerative medicine.
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Affiliation(s)
- Yan Kong
- Key Laboratory of Eco-Textiles, Ministry of Education, College of Textile Science and Engineering, Jiangnan University, Wuxi, Jiangsu 214122, PR China
| | - Jiawei Xu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Nantong University, Nantong, Jiangsu 226001, PR China; Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu 226001, PR China
| | - Qi Han
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Nantong University, Nantong, Jiangsu 226001, PR China; Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu 226001, PR China
| | - Tiantian Zheng
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Nantong University, Nantong, Jiangsu 226001, PR China; Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu 226001, PR China
| | - Linliang Wu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Nantong University, Nantong, Jiangsu 226001, PR China; Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu 226001, PR China
| | - Guicai Li
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Nantong University, Nantong, Jiangsu 226001, PR China; Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu 226001, PR China
| | - Yumin Yang
- Key Laboratory of Eco-Textiles, Ministry of Education, College of Textile Science and Engineering, Jiangnan University, Wuxi, Jiangsu 214122, PR China; Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Nantong University, Nantong, Jiangsu 226001, PR China; Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu 226001, PR China.
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Zhang M, Li L, An H, Zhang P, Liu P. Repair of Peripheral Nerve Injury Using Hydrogels Based on Self-Assembled Peptides. Gels 2021; 7:152. [PMID: 34698159 PMCID: PMC8544532 DOI: 10.3390/gels7040152] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 09/20/2021] [Accepted: 09/23/2021] [Indexed: 12/15/2022] Open
Abstract
Peripheral nerve injury often occurs in young adults and is characterized by complex regeneration mechanisms, poor prognosis, and slow recovery, which not only creates psychological obstacles for the patients but also causes a significant burden on society, making it a fundamental problem in clinical medicine. Various steps are needed to promote regeneration of the peripheral nerve. As a bioremediation material, self-assembled peptide (SAP) hydrogels have attracted international attention. They can not only be designed with different characteristics but also be applied in the repair of peripheral nerve injury by promoting cell proliferation or drug-loaded sustained release. SAP hydrogels are widely used in tissue engineering and have become the focus of research. They have extensive application prospects and are of great potential biological value. In this paper, the application of SAP hydrogel in peripheral nerve injury repair is reviewed, and the latest progress in peptide composites and fabrication techniques are discussed.
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Affiliation(s)
- Meng Zhang
- Department of Orthopedics and Trauma, Peking University People’s Hospital, Beijing 100044, China;
- Key Laboratory of Trauma and Neural Regeneration, Peking University, Beijing 100044, China
- National Center for Trauma Medicine, Beijing 100044, China
| | - Lei Li
- Department of Orthopaedics, Qilu Hospital of Shandong University, Jinan 250012, China;
| | - Heng An
- Beijing Key Laboratory for Bioengineering and Sensing Technology, Daxing Research Institute, School of Chemistry & Biological Engineering, University of Science & Technology Beijing, Beijing 100044, China;
| | - Peixun Zhang
- Department of Orthopedics and Trauma, Peking University People’s Hospital, Beijing 100044, China;
- Key Laboratory of Trauma and Neural Regeneration, Peking University, Beijing 100044, China
- National Center for Trauma Medicine, Beijing 100044, China
| | - Peilai Liu
- Department of Orthopaedics, Qilu Hospital of Shandong University, Jinan 250012, China;
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Xing Z, Chen Y, Qiu F. Alternative Causal Link between Peptide Fibrillization and β-Strand Conformation. ACS OMEGA 2021; 6:12904-12912. [PMID: 34056442 PMCID: PMC8154227 DOI: 10.1021/acsomega.1c01423] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 04/23/2021] [Indexed: 02/08/2023]
Abstract
In the prevailing phenomenon of peptide fibrillization, β-strand conformation has long been believed to be an important structural basis for peptide assembly. According to a widely accepted theory, in most peptide fibrillization processes, peptide monomers need to intrinsically take or transform to β-strand conformation before they can undergo ordered packing to form nanofibers. In this study, we reported our findings on an alternative peptide fibrillization pathway starting from a disordered secondary structure, which could then transform to β-strand after fibrillization. By using circular dichroism, thioflavin-T binding test, and transmission electron microscopy, we studied the secondary structure and assembly behavior of Ac-RADARADARADARADA-NH2 (RADA16-I) in a low concentration range. The effects of peptide concentration, solvent polarity, pH, and temperature were investigated in detail. Our results showed that at very low concentrations, even though the peptide was in a disordered secondary structure, it could still form nanofibers through intermolecular assembly, and under higher peptide concentrations, the transformation from the disordered structure to β-strand could happen with the growth of nanofibers. Our results indicated that even without ordered β-strand conformation, driving forces such as hydrophobic interaction and electrostatic interaction could still play a determinative role in the self-assembly of peptides. At least in some cases, the formation of β-strand might be the consequence rather than the cause of peptide fibrillization.
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Affiliation(s)
- Zhihua Xing
- Laboratory
of Anesthesia and Critical Care Medicine, Translational Neuroscience
Center and National Clinical Research Center for Geriatrics, West
China Hospital, Sichuan University, Chengdu 610041, China
- Laboratory
of Ethnopharmacology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yongzhu Chen
- Laboratory
of Anesthesia and Critical Care Medicine, Translational Neuroscience
Center and National Clinical Research Center for Geriatrics, West
China Hospital, Sichuan University, Chengdu 610041, China
- Periodical
Press of West China Hospital, Sichuan University, Chengdu 610041, China
| | - Feng Qiu
- Laboratory
of Anesthesia and Critical Care Medicine, Translational Neuroscience
Center and National Clinical Research Center for Geriatrics, West
China Hospital, Sichuan University, Chengdu 610041, China
- National-Local
Joint Engineering Research Center of Translational Medicine of Anesthesiology,
West China Hospital, Sichuan University, Chengdu 610041, China
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Kaur H, Jain R, Roy S. Pathway-Dependent Preferential Selection and Amplification of Variable Self-Assembled Peptide Nanostructures and Their Biological Activities. ACS APPLIED MATERIALS & INTERFACES 2020; 12:52445-52456. [PMID: 33190483 DOI: 10.1021/acsami.0c16725] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
We demonstrate the formation of diverse peptide nanostructures, which are "out of equilibrium" based on a single dipeptide gelator. These structures represent the differential energy states of the free energy landscape, which are accessed by differential energy inputs provided by variable self-assembly pathways, that is, heat-cool method or ultrasonication. A higher energy input by the heat-cool method created a thermodynamically favored long entangled nanofibrillar network, while twisted ribbonlike structures were prevalent by ultrasonication. Interestingly, the nanofibrillar network representing the global thermodynamic minima could be accessed by simply melting the kinetically trapped structures as indicated by the thermoreversibility studies. The impact on the material strength was remarkable; gels with an order of magnitude difference in mechanical properties could be fabricated by simply modulating the self-assembly pathways. Interestingly, the thermodynamically favored nanofibrous network promoted cellular adhesion and survival, while a significant number of cells fail to adhere on the kinetically trapped twisted ribbons. Thus, nonequilibrium nanostructures open up new directions to develop advanced functional materials with diverse functions.
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Affiliation(s)
- Harsimran Kaur
- Institute of Nano Science and Technology, Phase-10, Sector-64, Mohali, Punjab 160062, India
| | - Rashmi Jain
- Institute of Nano Science and Technology, Phase-10, Sector-64, Mohali, Punjab 160062, India
| | - Sangita Roy
- Institute of Nano Science and Technology, Phase-10, Sector-64, Mohali, Punjab 160062, India
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Wang H, Shang Y, Chen X, Wang Z, Zhu D, Liu Y, Zhang C, Chen P, Wu J, Wu L, Kong D, Yang Z, Li Z, Chen X. Delivery of MSCs with a Hybrid β-Sheet Peptide Hydrogel Consisting IGF-1C Domain and D-Form Peptide for Acute Kidney Injury Therapy. Int J Nanomedicine 2020; 15:4311-4324. [PMID: 32606679 PMCID: PMC7306577 DOI: 10.2147/ijn.s254635] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 06/09/2020] [Indexed: 12/14/2022] Open
Abstract
Purpose By providing a stem cell microenvironment with particular bioactive constituents in vivo, synthetic biomaterials have been progressively successful in stem cell-based tissue regeneration by enhancing the engraftment and survival of transplanted cells. Designs with bioactive motifs to influence cell behavior and with D-form amino acids to modulate scaffold stability may be critical for the development and optimization of self-assembling biomimetic hydrogel scaffolds for stem cell therapy. Materials and Methods In this study, we linked naphthalene (Nap) covalently to a short D-form peptide (Nap-DFDFG) and the C domain of insulin-like growth factor-1 (IGF-1C) as a functional hydrogel-based scaffolds, and we hypothesized that this hydrogel could enhance the therapeutic efficiency of human placenta-derived mesenchymal stem cells (hP-MSCs) in a murine acute kidney injury (AKI) model. Results The self-assembling peptide was constrained into a classical β-sheet structure and showed hydrogel properties. Our results revealed that this hydrogel exhibited increased affinity for IGF-1 receptor. Furthermore, cotransplantation of the β-IGF-1C hydrogel and hP-MSCs contributed to endogenous regeneration post-injury and boosted angiogenesis in a murine AKI model, leading to recovery of renal function. Conclusion This hydrogel could provide a favorable niche for hP-MSCs and thereby rescue renal function in an AKI model by promoting cell survival and angiogenesis. In conclusion, by covalently linking the desired functional groups to D-form peptides to create functional hydrogels, self-assembling β-sheet peptide hydrogels may serve as a promising platform for tissue-engineering and stem cell therapy. ![]()
Point your SmartPhone at the code above. If you have a QR code reader the video abstract will appear. Or use: https://youtu.be/ZIksZ7GICP4
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Affiliation(s)
- Hongfeng Wang
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing Key Laboratory of Kidney Diseases, Beijing 100039, People's Republic of China
| | - Yuna Shang
- State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Key Laboratory of Bioactive Materials, Ministry of Education, Nankai University, Tianjin 300071, People's Republic of China
| | - Xiaoniao Chen
- Department of Ophthalmology, Chinese PLA General Hospital, Beijing 100039, People's Republic of China
| | - Zhongyan Wang
- State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Key Laboratory of Bioactive Materials, Ministry of Education, Nankai University, Tianjin 300071, People's Republic of China
| | - Dashuai Zhu
- Department of Pathophysiology, Nankai University School of Medicine, Tianjin, 300071, People's Republic of China
| | - Yue Liu
- Department of Pathophysiology, Nankai University School of Medicine, Tianjin, 300071, People's Republic of China
| | - Chuyue Zhang
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing Key Laboratory of Kidney Diseases, Beijing 100039, People's Republic of China
| | - Pu Chen
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing Key Laboratory of Kidney Diseases, Beijing 100039, People's Republic of China
| | - Jie Wu
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing Key Laboratory of Kidney Diseases, Beijing 100039, People's Republic of China
| | - Lingling Wu
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing Key Laboratory of Kidney Diseases, Beijing 100039, People's Republic of China
| | - Deling Kong
- State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Key Laboratory of Bioactive Materials, Ministry of Education, Nankai University, Tianjin 300071, People's Republic of China
| | - Zhimou Yang
- State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Key Laboratory of Bioactive Materials, Ministry of Education, Nankai University, Tianjin 300071, People's Republic of China
| | - Zongjin Li
- Department of Pathophysiology, Nankai University School of Medicine, Tianjin, 300071, People's Republic of China
| | - Xiangmei Chen
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing Key Laboratory of Kidney Diseases, Beijing 100039, People's Republic of China
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Chen S, Du Z, Zou J, Qiu S, Rao Z, Liu S, Sun X, Xu Y, Zhu Q, Liu X, Mao HQ, Bai Y, Quan D. Promoting Neurite Growth and Schwann Cell Migration by the Harnessing Decellularized Nerve Matrix onto Nanofibrous Guidance. ACS APPLIED MATERIALS & INTERFACES 2019; 11:17167-17176. [PMID: 31002219 DOI: 10.1021/acsami.9b01066] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Synergistic intercellular interactions have been widely acknowledged in tuning functional cell behaviors in vivo, and these interactions have inspired the development of a variety of scaffolds for regenerative medicine. In this paper, the promotion of Schwann cell (SC)-neurite interactions through the use of a nerve extracellular matrix-coated nanofiber composite in vitro was demonstrated using a cell culturing platform consisting of either random or aligned electrospun poly(l-lactic acid) nanofibers and decellularized peripheral nerve matrix gel (pDNM gel) from porcine peripheral nervous tissue. The pDNM-coated nanofiber platform served as a superior substrate for dorsal root ganglion culturing. Furthermore, SC migration was facilitated by pDNM gel coating on the nanofibers, accompanied with much faster axonal extension, in comparison with the effect of topographical guidance from the aligned electrospun fibers only. Finally, the decellularized nerve matrix promoted the ability of SCs to wrap around bundled neurites, triggering axonal remyelination toward nerve fiber functionalization.
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Affiliation(s)
| | | | - Jianlong Zou
- Guangdong Peripheral Nerve Tissue Engineering and Technology Research Center, Department of Orthopedic and Microsurgery , The First Affiliated Hospital of Sun Yat-Sen University , Guangzhou 510080 , China
| | - Shuai Qiu
- Guangdong Peripheral Nerve Tissue Engineering and Technology Research Center, Department of Orthopedic and Microsurgery , The First Affiliated Hospital of Sun Yat-Sen University , Guangzhou 510080 , China
| | | | | | | | | | - Qingtang Zhu
- Guangdong Peripheral Nerve Tissue Engineering and Technology Research Center, Department of Orthopedic and Microsurgery , The First Affiliated Hospital of Sun Yat-Sen University , Guangzhou 510080 , China
| | - Xiaolin Liu
- Guangdong Peripheral Nerve Tissue Engineering and Technology Research Center, Department of Orthopedic and Microsurgery , The First Affiliated Hospital of Sun Yat-Sen University , Guangzhou 510080 , China
| | - Hai-Quan Mao
- Translational Tissue Engineering Center, and Department of Biomedical Engineering , Johns Hopkins University School of Medicine , Baltimore , Maryland 21287 , United States
- Institute for NanoBioTechnology, and Department of Materials Science and Engineering , Johns Hopkins University , Baltimore , Maryland 21218 , United States
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