High drug loading hydrophobic cross-linked dextran microspheres as novel drug delivery systems for the treatment of osteoarthritis

Autor: Zhimin Li, Xianjing Feng, Shixing Luo, Yanfeng Ding, Zhi Zhang, Yifeng Shang, Doudou Lei, Jinhong Cai, Jinmin Zhao, Li Zheng, Ming Gao
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Asian Journal of Pharmaceutical Sciences, Vol 18, Iss 4, Pp 100830- (2023)
Druh dokumentu: article
ISSN: 1818-0876
DOI: 10.1016/j.ajps.2023.100830
Popis: Drug delivery via intra-articular (IA) injection has proved to be effective in osteoarthritis (OA) therapy, limited by the drug efficiency and short retention time of the drug delivery systems (DDSs). Herein, a series of modified cross-linked dextran (Sephadex, S0) was fabricated by respectively grafting with linear alkyl chains, branched alkyl chains or aromatic chain, and acted as DDSs after ibuprofen (Ibu) loading for OA therapy. This DDSs expressed sustained drug release, excellent anti-inflammatory and chondroprotective effects both in IL-1β induced chondrocytes and OA joints. Specifically, the introduction of a longer hydrophobic chain, particularly an aromatic chain, distinctly improved the hydrophobicity of S0, increased Ibu loading efficiency, and further led to significantly improving OA therapeutic effects. Therefore, hydrophobic microspheres with greatly improved drug loading ratio and prolonged degradation rates show great potential to act as DDSs for OA therapy.
Databáze: Directory of Open Access Journals