Novel CO2-encapsulated Pluronic F127 hydrogel for the treatment of Achilles tendon injury

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 encapsul...

Full description

Bibliographic Details
Main Authors: Yi-Hsun Yu, Chen-Hung Lee, Yung-Heng Hsu, Ying-Chao Chou, Bo-Kui Hong, Chao-Tsai Huang, Shih-Jung Liu
Format: Article
Language:English
Published: Nature Portfolio 2023-12-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-023-49339-z
_version_ 1797388337402609664
author Yi-Hsun Yu
Chen-Hung Lee
Yung-Heng Hsu
Ying-Chao Chou
Bo-Kui Hong
Chao-Tsai Huang
Shih-Jung Liu
author_facet Yi-Hsun Yu
Chen-Hung Lee
Yung-Heng Hsu
Ying-Chao Chou
Bo-Kui Hong
Chao-Tsai Huang
Shih-Jung Liu
author_sort Yi-Hsun Yu
collection DOAJ
description 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.
first_indexed 2024-03-08T22:39:18Z
format Article
id doaj.art-5477a754644a4d22b90a383b4de7585b
institution Directory Open Access Journal
issn 2045-2322
language English
last_indexed 2024-03-08T22:39:18Z
publishDate 2023-12-01
publisher Nature Portfolio
record_format Article
series Scientific Reports
spelling doaj.art-5477a754644a4d22b90a383b4de7585b2023-12-17T12:15:25ZengNature PortfolioScientific Reports2045-23222023-12-0113111310.1038/s41598-023-49339-zNovel CO2-encapsulated Pluronic F127 hydrogel for the treatment of Achilles tendon injuryYi-Hsun Yu0Chen-Hung Lee1Yung-Heng Hsu2Ying-Chao Chou3Bo-Kui Hong4Chao-Tsai Huang5Shih-Jung Liu6Department of Orthopedic Surgery, Bone and Joint Research Center, Chang Gung Memorial Hospital at LinkouDivision of Cardiology, Department of Internal Medicine, Chang Gung Memorial Hospital-Linkou, Chang Gung University College of MedicineDepartment of Orthopedic Surgery, Bone and Joint Research Center, Chang Gung Memorial Hospital at LinkouDepartment of Orthopedic Surgery, Bone and Joint Research Center, Chang Gung Memorial Hospital at LinkouDepartment of Mechanical Engineering, Chang Gung UniversityDepartment of Chemical and Materials Engineering, Tamkang UniversityDepartment of Orthopedic Surgery, Bone and Joint Research Center, Chang Gung Memorial Hospital at LinkouAbstract 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.https://doi.org/10.1038/s41598-023-49339-z
spellingShingle Yi-Hsun Yu
Chen-Hung Lee
Yung-Heng Hsu
Ying-Chao Chou
Bo-Kui Hong
Chao-Tsai Huang
Shih-Jung Liu
Novel CO2-encapsulated Pluronic F127 hydrogel for the treatment of Achilles tendon injury
Scientific Reports
title Novel CO2-encapsulated Pluronic F127 hydrogel for the treatment of Achilles tendon injury
title_full Novel CO2-encapsulated Pluronic F127 hydrogel for the treatment of Achilles tendon injury
title_fullStr Novel CO2-encapsulated Pluronic F127 hydrogel for the treatment of Achilles tendon injury
title_full_unstemmed Novel CO2-encapsulated Pluronic F127 hydrogel for the treatment of Achilles tendon injury
title_short Novel CO2-encapsulated Pluronic F127 hydrogel for the treatment of Achilles tendon injury
title_sort novel co2 encapsulated pluronic f127 hydrogel for the treatment of achilles tendon injury
url https://doi.org/10.1038/s41598-023-49339-z
work_keys_str_mv AT yihsunyu novelco2encapsulatedpluronicf127hydrogelforthetreatmentofachillestendoninjury
AT chenhunglee novelco2encapsulatedpluronicf127hydrogelforthetreatmentofachillestendoninjury
AT yunghenghsu novelco2encapsulatedpluronicf127hydrogelforthetreatmentofachillestendoninjury
AT yingchaochou novelco2encapsulatedpluronicf127hydrogelforthetreatmentofachillestendoninjury
AT bokuihong novelco2encapsulatedpluronicf127hydrogelforthetreatmentofachillestendoninjury
AT chaotsaihuang novelco2encapsulatedpluronicf127hydrogelforthetreatmentofachillestendoninjury
AT shihjungliu novelco2encapsulatedpluronicf127hydrogelforthetreatmentofachillestendoninjury