Host-guest interaction mediated polymeric assemblies: multifunctional nanoparticles for drug and gene delivery

Area of Science:

• Biomaterials Science
• Nanotechnology
• Gene Therapy

Background:

• Drug delivery systems face challenges with hydrophobic drugs.
• Efficient gene delivery to specific cells remains a significant hurdle in therapy.

Purpose of the Study:

• To develop novel core-shell nanoassemblies for combined drug delivery and gene therapy.
• To utilize beta-cyclodextrin-based polymers for creating multifunctional nanocarriers.

Main Methods:

• Assembly of core-shell nanoassemblies using a positively charged host polymer and a hydrophobic guest polymer.
• Loading hydrophobic drugs into the core and condensing plasmid DNA with the shell.
• Transfection and expression studies in osteoblast cells.

Main Results:

• Successfully assembled core-shell nanoassemblies with distinct hydrophobic and hydrophilic domains.
• Demonstrated the capability of nanoassemblies to load hydrophobic drugs and condense plasmid DNA.
• Achieved successful transfection and expression of plasmid DNA in osteoblast cells.

Conclusions:

• The developed nanoassemblies show potential as multifunctional nanocarriers.
• These systems offer a promising platform for simultaneous drug delivery and gene therapy.
• The core-shell structure facilitates targeted delivery and cellular uptake.