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Hu C, Liu B, Huang X, Wang Z, Qin K, Sun L, Fan Z. Sea Cucumber-Inspired Microneedle Nerve Guidance Conduit for Synergistically Inhibiting Muscle Atrophy and Promoting Nerve Regeneration. ACS NANO 2024; 18:14427-14440. [PMID: 38776414 DOI: 10.1021/acsnano.4c00794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
Muscle atrophy resulting from peripheral nerve injury (PNI) poses a threat to a patient's mobility and sensitivity. However, an effective method to inhibit muscle atrophy following PNI remains elusive. Drawing inspiration from the sea cucumber, we have integrated microneedles (MNs) and microchannel technology into nerve guidance conduits (NGCs) to develop bionic microneedle NGCs (MNGCs) that emulate the structure and piezoelectric function of sea cucumbers. Morphologically, MNGCs feature an outer surface with outward-pointing needle tips capable of applying electrical stimulation to denervated muscles. Simultaneously, the interior contains microchannels designed to guide the migration of Schwann cells (SCs). Physiologically, the incorporation of conductive reduced graphene oxide and piezoelectric zinc oxide nanoparticles into the polycaprolactone scaffold enhances conductivity and piezoelectric properties, facilitating SCs' migration, myelin regeneration, axon growth, and the restoration of neuromuscular function. These combined effects ultimately lead to the inhibition of muscle atrophy and the restoration of nerve function. Consequently, the concept of the synergistic effect of inhibiting muscle atrophy and promoting nerve regeneration has the capacity to transform the traditional approach to PNI repair and find broad applications in PNI repair.
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Affiliation(s)
- Cewen Hu
- Key Laboratory of Dental Maxillofacial Reconstruction and Biological Intelligence Manufacturing of Gansu Province, School of Stomatology, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Bin Liu
- Key Laboratory of Dental Maxillofacial Reconstruction and Biological Intelligence Manufacturing of Gansu Province, School of Stomatology, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Xinyue Huang
- Key Laboratory of Dental Maxillofacial Reconstruction and Biological Intelligence Manufacturing of Gansu Province, School of Stomatology, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Zhilong Wang
- Key Laboratory of Dental Maxillofacial Reconstruction and Biological Intelligence Manufacturing of Gansu Province, School of Stomatology, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Kaiqi Qin
- Key Laboratory of Dental Maxillofacial Reconstruction and Biological Intelligence Manufacturing of Gansu Province, School of Stomatology, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Luyi Sun
- Polymer Program, Institute of Materials Science and Department of Chemical & Biomolecular Engineering, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Zengjie Fan
- Key Laboratory of Dental Maxillofacial Reconstruction and Biological Intelligence Manufacturing of Gansu Province, School of Stomatology, Lanzhou University, Lanzhou 730000, People's Republic of China
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Moore JT, Wier CG, Lemmerman LR, Ortega-Pineda L, Dodd DJ, Lawrence WR, Duarte-Sanmiguel S, Dathathreya K, Diaz-Starokozheva L, Harris HN, Sen CK, Valerio IL, Higuita-Castro N, Arnold WD, Kolb SJ, Gallego-Perez D. Nanochannel-Based Poration Drives Benign and Effective Nonviral Gene Delivery to Peripheral Nerve Tissue. ADVANCED BIOSYSTEMS 2020; 4:e2000157. [PMID: 32939985 PMCID: PMC7704786 DOI: 10.1002/adbi.202000157] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 08/04/2020] [Accepted: 08/18/2020] [Indexed: 01/01/2023]
Abstract
While gene and cell therapies have emerged as promising treatment strategies for various neurological conditions, heavy reliance on viral vectors can hamper widespread clinical implementation. Here, the use of tissue nanotransfection as a platform nanotechnology to drive nonviral gene delivery to nerve tissue via nanochannels, in an effective, controlled, and benign manner is explored. TNT facilitates plasmid DNA delivery to the sciatic nerve of mice in a voltage-dependent manner. Compared to standard bulk electroporation (BEP), impairment in toe-spread and pinprick response is not caused by TNT, and has limited to no impact on electrophysiological parameters. BEP, however, induces significant nerve damage and increases macrophage immunoreactivity. TNT is subsequently used to deliver vasculogenic cell therapies to crushed nerves via delivery of reprogramming factor genes Etv2, Foxc2, and Fli1 (EFF). The results indicate the TNT-based delivery of EFF in a sciatic nerve crush model leads to increased vascularity, reduced macrophage infiltration, and improved recovery in electrophysiological parameters compared to crushed nerves that are TNT-treated with sham/empty plasmids. Altogether, the results indicate that TNT can be a powerful platform nanotechnology for localized nonviral gene delivery to nerve tissue, in vivo, and the deployment of reprogramming-based cell therapies for nerve repair/regeneration.
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Affiliation(s)
- Jordan T. Moore
- Department of Biomedical Engineering, The Ohio State University, Columbus, OH, USA
| | | | - Luke R. Lemmerman
- Department of Biomedical Engineering, The Ohio State University, Columbus, OH, USA
| | | | - Daniel J. Dodd
- Biomedical Sciences Graduate Program, The Ohio State University, Columbus, OH, USA
| | - William R. Lawrence
- Biomedical Sciences Graduate Program, The Ohio State University, Columbus, OH, USA
| | - Silvia Duarte-Sanmiguel
- Department of Biomedical Engineering, The Ohio State University, Columbus, OH, USA
- Department of Human Sciences, The Ohio State University, Columbus, OH, USA
| | - Kavya Dathathreya
- Department of Biomedical Engineering, The Ohio State University, Columbus, OH, USA
| | | | - Hallie N. Harris
- Department of Neurology, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Chandan K. Sen
- School of Medicine, Indiana University, Indianapolis, IN, USA
| | - Ian L. Valerio
- Plastic and Reconstructive Surgery, Massachusetts General Hospital, Boston, MA, USA
| | - Natalia Higuita-Castro
- Department of Biomedical Engineering, The Ohio State University, Columbus, OH, USA
- Department of Surgery, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - W. David Arnold
- Department of Neurology, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Stephen J. Kolb
- Department of Neurology, The Ohio State University Wexner Medical Center, Columbus, OH, USA
- Department of Biological Chemistry and Pharmacology, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Daniel Gallego-Perez
- Department of Biomedical Engineering, The Ohio State University, Columbus, OH, USA
- Department of Surgery, The Ohio State University Wexner Medical Center, Columbus, OH, USA
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Zhao L, Niu L, Liang H, Tan H, Liu C, Zhu F. pH and Glucose Dual-Responsive Injectable Hydrogels with Insulin and Fibroblasts as Bioactive Dressings for Diabetic Wound Healing. ACS APPLIED MATERIALS & INTERFACES 2017; 9:37563-37574. [PMID: 28994281 DOI: 10.1021/acsami.7b09395] [Citation(s) in RCA: 191] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
pH and glucose dual-responsive injectable hydrogels were prepared through the cross-linking of Schiff's base and phenylboronate ester using phenylboronic-modified chitosan, poly(vinyl alcohol) and benzaldehyde-capped poly(ethylene glycol). Protein drugs and live cells could be incorporated into the hydrogels during the in situ cross-linking, displaying sustained and pH/glucose-triggered drug release from the hydrogels and cell viability and proliferation in the three-dimensional hydrogel matrix as well. Hence, the hydrogels with insulin and fibroblasts were considered as bioactive dressings for diabetic wound healing. A streptozotocin-induced diabetic rat model was used to evaluate the efficacy of hydrogel dressings in wound repair. The results revealed that the incorporation of insulin and L929 in the hydrogels could promote neovascularization and collagen deposition and enhance the wound-healing process of diabetic wounds. Thus, the drug- and cell-loaded hydrogels have promising potential in wound healing as a medicated system for various therapeutic proteins and live cells.
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Affiliation(s)
- Lingling Zhao
- Faculty of Materials Science and Chemical Engineering, Ningbo University , Ningbo 315211, China
- Division of Surgery and Interventional Science, University College London , London HA7 4LP, U.K
| | - Lijing Niu
- Faculty of Materials Science and Chemical Engineering, Ningbo University , Ningbo 315211, China
| | - Hongze Liang
- Faculty of Materials Science and Chemical Engineering, Ningbo University , Ningbo 315211, China
| | - Hui Tan
- Shenzhen Key Laboratory of Neurosurgery, Shenzhen Second People's Hospital , Shenzhen 518035, China
| | - Chaozong Liu
- Division of Surgery and Interventional Science, University College London , London HA7 4LP, U.K
| | - Feiyan Zhu
- Shenzhen Key Laboratory of Tissue Engineering, Shenzhen Second People's Hospital , Shenzhen 518035, China
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