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Yu YH, Lee CH, Hsu YH, Chou YC, Hong BK, Huang CT, Liu SJ. Novel CO 2-encapsulated Pluronic F127 hydrogel for the treatment of Achilles tendon injury. Sci Rep 2023; 13:21895. [PMID: 38081952 PMCID: PMC10713641 DOI: 10.1038/s41598-023-49339-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 12/07/2023] [Indexed: 12/18/2023] Open
Abstract
Nonsurgical treatment and surgical repairment of injured Achilles tendons seldom restore the wounded tendon to its original elasticity and stiffness. Therefore, we hypothesized that the surgically repaired Achilles tendon can achieve satisfactory regeneration by applying multi-drug encapsulated hydrogels. In this study, a novel bupivacaine-eluting carbon dioxide-encapsulated Pluronic F127 hydrogel (BC-hydrogel) was developed for the treatment of Achilles tendon injuries. The rheological properties of BC-hydrogel were measured. A high-performance liquid chromatography assay was used to assess the release characteristics of bupivacaine in both in vitro and in vivo settings. Furthermore, the effectiveness of BC-hydrogel in treating torn tendons was examined in a rat model, and histological analyses were conducted. Evidently, the degradable hydrogels continuously eluted bupivacaine for more than 14 days. The animal study results revealed that the BC-hydrogel improved the post-surgery mobility of the animals compared with pristine hydrogels. Histological assay results demonstrated a significant reaction to high vascular endothelial growth factor in the surrounding tissues and expression of collagen I within the repaired tendon. This demonstrates the potential of this novel BC-hydrogel as an effective treatment method for Achilles tendon injuries.
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Affiliation(s)
- Yi-Hsun Yu
- Department of Orthopedic Surgery, Bone and Joint Research Center, Chang Gung Memorial Hospital at Linkou, Tao-Yuan, 33305, Taiwan
| | - Chen-Hung Lee
- Division of Cardiology, Department of Internal Medicine, Chang Gung Memorial Hospital-Linkou, Chang Gung University College of Medicine, Tao-Yuan, 33305, Taiwan
| | - Yung-Heng Hsu
- Department of Orthopedic Surgery, Bone and Joint Research Center, Chang Gung Memorial Hospital at Linkou, Tao-Yuan, 33305, Taiwan
| | - Ying-Chao Chou
- Department of Orthopedic Surgery, Bone and Joint Research Center, Chang Gung Memorial Hospital at Linkou, Tao-Yuan, 33305, Taiwan
| | - Bo-Kui Hong
- Department of Mechanical Engineering, Chang Gung University, Tao-Yuan, 33302, Taiwan
| | - Chao-Tsai Huang
- Department of Chemical and Materials Engineering, Tamkang University, New Taipei City, 251301, Taiwan
| | - Shih-Jung Liu
- Department of Orthopedic Surgery, Bone and Joint Research Center, Chang Gung Memorial Hospital at Linkou, Tao-Yuan, 33305, Taiwan.
- Department of Mechanical Engineering, Chang Gung University, Tao-Yuan, 33302, Taiwan.
- Biomaterials Lab, Mechanical Engineering, Chang Gung University, 259, Wen-Hwa 1st Road, Kwei-Shan, Tao-Yuan, 33302, Taiwan.
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