J. Mater. Sci. Technol. ›› 2023, Vol. 143: 30-42.DOI: 10.1016/j.jmst.2022.08.048

• Research Article • Previous Articles     Next Articles

Cartilage-targeting and inflammatory-responsive nanocarriers for effective osteoarthritis treatment via reactive oxygen species scavenging and anti-angiogenesis

Sixiang Wanga, Yan Gaoa, Lili Dongb, Peixing Chenc, Wanqian Liua,*, Li Yanga,*   

  1. aNational Innovation and Attracting Talents “; 111”base,KeyLaboratoryofBiorheologicalScienceandTechnology,MinistryofEducation,Collegeof Bioengineering, Chongqing University, Chongqing 400030, China
    bDepartment of Orthopaedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400042, China
    cChongqing Key Laboratory of Nano/Micro Composite Material and Device, School of Metallurgy and Materials Engineering, Chongqing University of Science and Technology, Chongqing 401331, China
  • Received:2022-06-17 Revised:2022-06-17 Accepted:2022-06-17 Online:2023-04-14
  • Contact: *E-mail addresses: wqliu@cqu.edu.cn (W. Liu), yanglibme@cqu.edu.cn (L. Yang).

Abstract: Osteoarthritis (OA), a common disabling joint disease, is highly associated with microenvironmental changes in the cartilage and subchondral bone. Elevated reactive oxygen species (ROS) in the cartilage and subchondral bone angiogenesis accelerate articular cartilage erosion. New cartilage-targeting drug delivery systems that are aimed at preventing ROS production and angiogenesis may be of clinical significance for OA treatment. Herein, an ROS scavenger and an inflammatory-responsive nanocarrier are designed by immobilizing the natural polyphenol (curcumin) in chitosan-catechol nanoformulations (Cur-CS-C NPs) via boronate ester. The robust cartilage-targeting effects and ROS scavenging capacities of Cur-CS-C NPs were respectively determined in cartilage explants and chondrocytes. Intra-articular injection of Cur-CS-C NPs in OA rat models efficiently suppressed angiogenesis and cartilage degradation partially via the ROS-mediated NF-κB/PI3K-Akt signaling pathway. The developed curcumin-functionalized nanocarriers can significantly delay OA progression and provide a promising therapeutic strategy for other inflammatory diseases that are characterized by oxidative stress and angiogenesis.

Key words: Osteoarthritis, Reactive oxygen species, Angiogenesis, Cartilage-targeting, Drug delivery systems, Chitosan-catechol nanocarriers