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Wang S, Wang R, Chen J, Yang B, Shu J, Cheng F, Tao Y, Shi K, Wang C, Wang J, Xia K, Zhang Y, Chen Q, Liang C, Tang J, Li F. Controlled extracellular vesicles release from aminoguanidine nanoparticle-loaded polylysine hydrogel for synergistic treatment of spinal cord injury. J Control Release 2023; 363:27-42. [PMID: 37722419 DOI: 10.1016/j.jconrel.2023.09.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 09/09/2023] [Accepted: 09/14/2023] [Indexed: 09/20/2023]
Abstract
Pharmaceutical treatments are critical for the acute and subacute phases of spinal cord injury (SCI) and significantly impact patients' prognoses. However, there is a lack of a precise, multitemporal, integrated drug delivery system for medications administered in both phases. In this study, we prepare a hybrid polylysine-based hydrogel (PBHEVs@AGN) comprising short-term release of pH-responsive aminoguanidine nanoparticles (AGN) and sustained release of extracellular vesicles (EVs) for synergistic SCI treatment. When AGN is exposed to the acidic environment at the injury site, it quickly diffuses out of the hydrogel and releases the majority of the aminoguanidine within 24 h, reducing oxidative stress in lesion tissues. Enriched EVs are gradually released from the hydrogel and remain in the tissue for weeks, providing a long-term anti-inflammatory effect and further ensuring axonal regeneration. Fast-releasing aminoguanidine can cooperate with slow-release EVs to treat SCI more effectively by reducing the production of proinflammatory cytokines and blocking the TLR4/Myd88/NF-κB inflammatory pathway, creating a sustained anti-inflammatory microenvironment for SCI recovery. Our in vivo experiments demonstrate that PBHEVs@AGN reduces the occurrence of scar tissue, encourages remyelination, and speeds up axonal regeneration. Herein, this multi-drug delivery system, which combines the acute release of aminoguanidine and the sustained release of EVs is highly effective for synergistically managing the challenging pathological processes after SCI.
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Affiliation(s)
- Shaoke Wang
- Department of Orthopedics, Tongji Hospital Affiliated to Tongji University, School of Medicine, Tongji University, Shanghai 200065, PR China
| | - Rui Wang
- Key Laboratory of Smart Biomaterials of Zhejiang Province, Collage of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, Zhejiang, PR China
| | - Jiangjie Chen
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, Zhejiang, PR China; Orthopedics Research Institute of Zhejiang University, Zhejiang University, Hangzhou 310009, Zhejiang, PR China; Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou 310009, Zhejiang Province, PR China; Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou 310009, Zhejiang Province, PR China
| | - Biao Yang
- Qiandongnan Prefecture People's Hospital, Kaili 556000, Guizhou, PR China
| | - Jiawei Shu
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, Zhejiang, PR China; Orthopedics Research Institute of Zhejiang University, Zhejiang University, Hangzhou 310009, Zhejiang, PR China; Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou 310009, Zhejiang Province, PR China; Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou 310009, Zhejiang Province, PR China
| | - Feng Cheng
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, Zhejiang, PR China; Orthopedics Research Institute of Zhejiang University, Zhejiang University, Hangzhou 310009, Zhejiang, PR China; Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou 310009, Zhejiang Province, PR China; Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou 310009, Zhejiang Province, PR China
| | - Yiqing Tao
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, Zhejiang, PR China; Orthopedics Research Institute of Zhejiang University, Zhejiang University, Hangzhou 310009, Zhejiang, PR China; Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou 310009, Zhejiang Province, PR China; Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou 310009, Zhejiang Province, PR China
| | - Kesi Shi
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, Zhejiang, PR China; Orthopedics Research Institute of Zhejiang University, Zhejiang University, Hangzhou 310009, Zhejiang, PR China; Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou 310009, Zhejiang Province, PR China; Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou 310009, Zhejiang Province, PR China
| | - Chenggui Wang
- The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325000, Zhejiang, PR China
| | - Jingkai Wang
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, Zhejiang, PR China; Orthopedics Research Institute of Zhejiang University, Zhejiang University, Hangzhou 310009, Zhejiang, PR China; Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou 310009, Zhejiang Province, PR China; Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou 310009, Zhejiang Province, PR China
| | - Kaishun Xia
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, Zhejiang, PR China; Orthopedics Research Institute of Zhejiang University, Zhejiang University, Hangzhou 310009, Zhejiang, PR China; Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou 310009, Zhejiang Province, PR China; Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou 310009, Zhejiang Province, PR China
| | - Yuang Zhang
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, Zhejiang, PR China; Orthopedics Research Institute of Zhejiang University, Zhejiang University, Hangzhou 310009, Zhejiang, PR China; Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou 310009, Zhejiang Province, PR China; Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou 310009, Zhejiang Province, PR China
| | - Qixin Chen
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, Zhejiang, PR China; Orthopedics Research Institute of Zhejiang University, Zhejiang University, Hangzhou 310009, Zhejiang, PR China; Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou 310009, Zhejiang Province, PR China; Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou 310009, Zhejiang Province, PR China
| | - Chengzhen Liang
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, Zhejiang, PR China; Orthopedics Research Institute of Zhejiang University, Zhejiang University, Hangzhou 310009, Zhejiang, PR China; Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou 310009, Zhejiang Province, PR China; Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou 310009, Zhejiang Province, PR China.
| | - Jianbin Tang
- Key Laboratory of Smart Biomaterials of Zhejiang Province, Collage of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, Zhejiang, PR China.
| | - Fangcai Li
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, Zhejiang, PR China; Orthopedics Research Institute of Zhejiang University, Zhejiang University, Hangzhou 310009, Zhejiang, PR China; Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou 310009, Zhejiang Province, PR China; Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou 310009, Zhejiang Province, PR China.
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