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- W1998302327 abstract "Gene therapy is a promising new treatment strategy for common joint-disorders such as osteoarthritis. The development of safe, effective, targeted non-viral gene carriers is important for the clinical success of gene therapy. The present work describes the use of hybrid hyaluronic acid (HA)/chitosan (CS) nanoparticles as novel non-viral gene delivery vectors capable of transferring exogenous genes into primary chondrocytes for the treatment of joint diseases. HA/CS plasmid-DNA nanoparticles were synthesized through the complex coacervation of the cationic polymers with pEGFP. Particle size and zeta potential were related to the weight ratio of CS to HA, where increases in nanoparticle size and decreases in surface charge were observed as HA content increased. The particle size and the zeta potential varied according to pH. Transfection of primary chondrocytes was performed under different conditions to examine variations in the pH of the transfection medium, different N/P ratios, different plasmid concentrations, and different molecular weights of chitosan. Transfection efficiency was maximized for a medium pH of approximately 6.8, an N/P ratio of 5, plasmid concentration of 4 μg/ml, and a chitosan molecular weight of 50 kDa. The transfection efficiency of HA/CS-plasmid nanoparticles was significantly higher than that of CS-plasmid nanoparticles under the same conditions. The average viability of cells transfected with HA/CS-plasmid nanoparticles was over 90%. These results suggest that HA/CS-plasmid nanoparticles could be an effective non-viral vector suitable for gene delivery to chondrocytes." @default.
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- W1998302327 date "2011-11-01" @default.
- W1998302327 modified "2023-09-27" @default.
- W1998302327 title "Novel hyaluronic acid–chitosan nanoparticles as non-viral gene delivery vectors targeting osteoarthritis" @default.
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- W1998302327 doi "https://doi.org/10.1016/j.ijpharm.2011.08.046" @default.
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