Magnetic and acoustically active microbubbles loaded with nucleic acids for gene delivery

Area of Science:

• Biomedical Engineering
• Nanotechnology
• Gene Therapy

Background:

• Targeted delivery systems aim to maximize therapeutic effects at target sites while minimizing off-target effects.
• Magnetic drug targeting and ultrasound-triggered delivery are advanced concepts for enhanced therapeutic efficacy.
• Magnetic microbubbles offer a novel approach for combined magnetic and ultrasound-triggered delivery of therapeutic agents.

Purpose of the Study:

• To develop and characterize magnetic microbubbles for targeted gene or drug delivery.
• To establish protocols for preparing and labeling magnetic microbubbles and their components.
• To evaluate the efficacy of magnetic microbubbles in gene delivery and cellular interactions.

Main Methods:

• Assembly of magnetic nanoparticles (MNPs), phospholipids, and nucleic acids with perfluorocarbon gas into magnetic lipospheres or microbubbles.
• Labeling of lipids, MNPs, and nucleic acids for visualization and characterization.
• Assessment of magnetic responsiveness, ultrasound contrast effects, cellular association, transfection efficiency, and cell viability.

Main Results:

• Protocols for preparing and labeling magnetic microbubbles for nucleic acid delivery were established.
• Characterization confirmed magnetic responsiveness and ultrasound contrast properties of the developed vectors.
• Successful demonstration of cellular association, gene delivery, and assessment of cell viability in adherent cells.

Conclusions:

• Magnetic microbubbles represent a promising platform for combined magnetic and ultrasound-triggered targeted gene delivery.
• The developed protocols facilitate the preparation, labeling, and characterization of these advanced delivery vectors.
• This approach holds potential for improving the efficacy and safety of gene and drug delivery therapies.