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Zhu B, Gu G, Ren J, Song X, Li J, Wang C, Zhang W, Huo Y, Wang H, Jin L, Feng S, Wei Z. Schwann Cell-Derived Exosomes and Methylprednisolone Composite Patch for Spinal Cord Injury Repair. ACS NANO 2023; 17:22928-22943. [PMID: 37948097 DOI: 10.1021/acsnano.3c08046] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2023]
Abstract
Spinal cord injury (SCI) can cause permanent loss of sensory and motor function, and there is no effective clinical treatment, to date. Due to the complex pathological process involved after injury, synergistic treatments are very urgently needed in clinical practice. We designed a nanofiber scaffold hyaluronic acid hydrogel patch to release both exosomes and methylprednisolone to the injured spinal cord in a non-invasive manner. This composite patch showed good biocompatibility in the stabilization of exosome morphology and toxicity to nerve cells. Meanwhile, the composite patch increased the proportion of M2-type macrophages and reduced neuronal apoptosis in an in vitro study. In vivo, the functional and electrophysiological performance of rats with SCI was significantly improved when the composite patch covered the surface of the hematoma. The composite patch inhibited the inflammatory response through macrophage polarization from M1 type to M2 type and increased the survival of neurons by inhibition neuronal of apoptosis after SCI. The therapeutic effects of this composite patch can be attributed to TLR4/NF-κB, MAPK, and Akt/mTOR pathways. Thus, the composite patch provides a medicine-exosomes dual-release system and may provide a non-invasive method for clinical treatment for individuals with SCI.
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Affiliation(s)
- Bin Zhu
- National Spinal Cord Injury International Cooperation Base, Tianjin Key Laboratory of Spine and Spinal Cord Injury, Department of Orthopedics, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China
| | - Guangjin Gu
- Department of Orthopedics, Qilu Hospital of Shandong University, Shandong University Centre for Orthopedics, Advanced Medical Research Institute, Shandong University, Jinan, Shandong 250033, China
| | - Jie Ren
- National Spinal Cord Injury International Cooperation Base, Tianjin Key Laboratory of Spine and Spinal Cord Injury, Department of Orthopedics, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China
| | - Xiaomeng Song
- National Spinal Cord Injury International Cooperation Base, Tianjin Key Laboratory of Spine and Spinal Cord Injury, Department of Orthopedics, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China
| | - Junjin Li
- National Spinal Cord Injury International Cooperation Base, Tianjin Key Laboratory of Spine and Spinal Cord Injury, Department of Orthopedics, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China
| | - Chunyan Wang
- Department of Rehabilitation Medicine, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China
| | - Wencan Zhang
- Department of Orthopedics, Qilu Hospital of Shandong University, Shandong University Centre for Orthopedics, Advanced Medical Research Institute, Shandong University, Jinan, Shandong 250033, China
| | - Yanqing Huo
- Department of Orthopaedics, The Second Hospital of Shandong University, Jinan, Shandong 250033, China
| | - Haifeng Wang
- Department of Orthopaedics, The Second Hospital of Shandong University, Jinan, Shandong 250033, China
| | - Lin Jin
- International Joint Research Laboratory for Biomedical Nanomaterials of Henan, Zhoukou Normal University, Zhoukou, Henan 466001, China
| | - Shiqing Feng
- National Spinal Cord Injury International Cooperation Base, Tianjin Key Laboratory of Spine and Spinal Cord Injury, Department of Orthopedics, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China
- Department of Orthopaedics, Qilu Hospital of Shandong University, The Second Hospital of Shandong University, Shandong University Centre for Orthopaedics, Advanced Medical Research Institute, Shandong University, Jinan, Shandong 250033, China
| | - Zhijian Wei
- National Spinal Cord Injury International Cooperation Base, Tianjin Key Laboratory of Spine and Spinal Cord Injury, Department of Orthopedics, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China
- Department of Orthopaedics, Qilu Hospital of Shandong University, The Second Hospital of Shandong University, Shandong University Centre for Orthopaedics, Advanced Medical Research Institute, Shandong University, Jinan, Shandong 250033, China
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Quan Q, Hong L, Wang Y, Li R, Yin X, Cheng X, Liu G, Tang H, Meng H, Liu S, Guo Q, Lai B, Zhao Q, Wei M, Peng J, Tang P. Hybrid material mimics a hypoxic environment to promote regeneration of peripheral nerves. Biomaterials 2021; 277:121068. [PMID: 34419733 DOI: 10.1016/j.biomaterials.2021.121068] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2021] [Revised: 07/29/2021] [Accepted: 08/08/2021] [Indexed: 12/17/2022]
Abstract
Between nerve defects, a bridge formed by multiple cells is the fundamental structure for guiding axons across this damaged region. Here, we developed a functional material that mimics hypoxia during the early stages of nerve regeneration by deferoxamine. We used this material and single-cell sequencing to analyze the "bridge" structure between peripheral nerve defects. We found that hypoxia in damaged tissues might play a key role in stimulating macrophages, promoting endothelial-to-mesenchymal transition, and driving the migration of endothelial cells to the injured region to form regenerative bridge tissue and guide the subsequent regeneration of Schwann cells and axons. The results showed that the final nerve defect repair outcomes were similar with autografts after intervention by this material. This study challenges the view that hypoxia is exclusively involved in peripheral nerve regeneration and provides a potentially valuable candidate material for clinical use.
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Affiliation(s)
- Qi Quan
- Department of Orthopedic Surgery, Key Laboratory of Musculoskeletal Trauma &War Injuries PLA, Beijing Key Lab of Regenerative Medicine in Orthopedics, The 4th Medical Centre, Chinese PLA General Hospital, Beijing, China.
| | - Lei Hong
- Department of Orthopedic Surgery, Key Laboratory of Musculoskeletal Trauma &War Injuries PLA, Beijing Key Lab of Regenerative Medicine in Orthopedics, The 4th Medical Centre, Chinese PLA General Hospital, Beijing, China
| | - Yu Wang
- Department of Orthopedic Surgery, Key Laboratory of Musculoskeletal Trauma &War Injuries PLA, Beijing Key Lab of Regenerative Medicine in Orthopedics, The 4th Medical Centre, Chinese PLA General Hospital, Beijing, China; The Neural Regeneration Co-Innovation Center of Jiangsu Province, Nantong, China
| | - Rui Li
- Department of Orthopedic Surgery, Key Laboratory of Musculoskeletal Trauma &War Injuries PLA, Beijing Key Lab of Regenerative Medicine in Orthopedics, The 4th Medical Centre, Chinese PLA General Hospital, Beijing, China
| | - Xin Yin
- Department of Orthopedic Surgery, Key Laboratory of Musculoskeletal Trauma &War Injuries PLA, Beijing Key Lab of Regenerative Medicine in Orthopedics, The 4th Medical Centre, Chinese PLA General Hospital, Beijing, China
| | - Xiaoqing Cheng
- Department of Orthopedic Surgery, Key Laboratory of Musculoskeletal Trauma &War Injuries PLA, Beijing Key Lab of Regenerative Medicine in Orthopedics, The 4th Medical Centre, Chinese PLA General Hospital, Beijing, China
| | - Guangbo Liu
- Department of Orthopedic Surgery, PLA Strategic Support Force Characteristic Medical Center, China
| | - He Tang
- Beijing Anzhen Hospital, Capital Medical University, Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing Collaborative Innovation Center for Cardiovascular Disorders, China
| | - Haoye Meng
- Department of Orthopedic Surgery, Key Laboratory of Musculoskeletal Trauma &War Injuries PLA, Beijing Key Lab of Regenerative Medicine in Orthopedics, The 4th Medical Centre, Chinese PLA General Hospital, Beijing, China
| | - Shuyun Liu
- Department of Orthopedic Surgery, Key Laboratory of Musculoskeletal Trauma &War Injuries PLA, Beijing Key Lab of Regenerative Medicine in Orthopedics, The 4th Medical Centre, Chinese PLA General Hospital, Beijing, China
| | - Quanyi Guo
- Department of Orthopedic Surgery, Key Laboratory of Musculoskeletal Trauma &War Injuries PLA, Beijing Key Lab of Regenerative Medicine in Orthopedics, The 4th Medical Centre, Chinese PLA General Hospital, Beijing, China
| | - Biqin Lai
- Key Laboratory for Stem Cells and Tissue Engineering, Sun Yat-sen University, Ministry of Education, Guangzhou, China
| | - Qing Zhao
- Department of Orthopedic Surgery, Key Laboratory of Musculoskeletal Trauma &War Injuries PLA, Beijing Key Lab of Regenerative Medicine in Orthopedics, The 4th Medical Centre, Chinese PLA General Hospital, Beijing, China
| | - Min Wei
- Department of Orthopedic Surgery, Key Laboratory of Musculoskeletal Trauma &War Injuries PLA, Beijing Key Lab of Regenerative Medicine in Orthopedics, The 4th Medical Centre, Chinese PLA General Hospital, Beijing, China.
| | - Jiang Peng
- Department of Orthopedic Surgery, Key Laboratory of Musculoskeletal Trauma &War Injuries PLA, Beijing Key Lab of Regenerative Medicine in Orthopedics, The 4th Medical Centre, Chinese PLA General Hospital, Beijing, China; The Neural Regeneration Co-Innovation Center of Jiangsu Province, Nantong, China.
| | - Peifu Tang
- Department of Orthopedic Surgery, Key Laboratory of Musculoskeletal Trauma &War Injuries PLA, Beijing Key Lab of Regenerative Medicine in Orthopedics, The 4th Medical Centre, Chinese PLA General Hospital, Beijing, China.
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Xing XX, Zheng MX, Hua XY, Ma SJ, Ma ZZ, Xu JG. Brain plasticity after peripheral nerve injury treatment with massage therapy based on resting-state functional magnetic resonance imaging. Neural Regen Res 2021; 16:388-393. [PMID: 32859803 PMCID: PMC7896216 DOI: 10.4103/1673-5374.290912] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 03/17/2020] [Accepted: 04/16/2020] [Indexed: 12/14/2022] Open
Abstract
Massage therapy is an alternative treatment for chronic pain that is potentially related to brain plasticity. However, the underlying mechanism remains unclear. We established a peripheral nerve injury model in rats by unilateral sciatic nerve transection and direct anastomosis. The experimental rats were treated over the gastrocnemius muscle of the affected hindlimb with a customized massage instrument (0.45 N, 120 times/min, 10 minutes daily, for 4 successive weeks). Resting-state functional magnetic resonance imaging revealed that compared with control rats, the amplitude of low-frequency fluctuations in the sensorimotor cortex contralateral to the affected limb was significantly lower after sciatic nerve transection. However, amplitudes were significantly higher in the massage group than in a sham-massage group. These findings suggest that massage therapy facilitated adaptive change in the somatosensory cortex that led to the recovery of peripheral nerve injury and repair. This study was approved by the Animal Ethics Committee of Shanghai University of Traditional Chinese Medicine of China (approval No. 201701001) on January 12, 2017.
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Affiliation(s)
- Xiang-Xin Xing
- School of Rehabilitation Science, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Department of Rehabilitation Medicine, Yueyang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Mou-Xiong Zheng
- Department of Traumatology and Orthopedics, Yueyang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xu-Yun Hua
- Department of Traumatology and Orthopedics, Yueyang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Yangzi Rehabilitation Hospital, Tongji University, Shanghai, China
| | - Shu-Jie Ma
- School of Rehabilitation Science, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Zhen-Zhen Ma
- School of Rehabilitation Science, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jian-Guang Xu
- School of Rehabilitation Science, Shanghai University of Traditional Chinese Medicine, Shanghai, China
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