Cisplatin Cross-Linked Multifunctional Nanodrugplexes for Combination Therapy.

Area of Science:

• Biomedical Engineering
• Materials Science
• Nanotechnology

Background:

• Combination cancer therapy requires precise drug delivery for optimal efficacy.
• Current methods struggle to deliver multiple drugs at desired doses and ratios.
• Polymeric nanoparticles offer a solution for simultaneous, targeted drug delivery.

Purpose of the Study:

• To develop a versatile nanodrugplex for enhanced cancer combination therapy.
• To utilize hyaluronan (HA) as a scaffold for co-delivering cisplatin and aromatic-cationic drugs.
• To investigate the drug-loading mechanism and targeting capabilities of the nanodrugplex.

Main Methods:

• A one-pot strategy was employed to formulate nanomedicines using platinum coordination and noncovalent interactions.
• Hyaluronan (HA) was used as a scaffold to form a nanodrugplex with cisplatin and aromatic-cationic drugs.
• Characterization of nanodrugplex formation, stability, drug release, and CD44 targeting.

Main Results:

• The nanodrugplex formation was induced by platinum coordination between cisplatin and HA.
• Aromatic-cationic drugs were effectively loaded via electrostatic interactions and π-π stacking.
• The nanodrugplex demonstrated flexibility in drug combination, size control, storage stability, and favorable release kinetics.
• Targeting capabilities toward CD44-overexpressing cancer cells were observed.

Conclusions:

• The developed HA-based nanodrugplex provides an effective platform for cancer combination therapy.
• This approach enables precise co-delivery of multiple drugs, improving therapeutic outcomes.
• The nanodrugplex exhibits potential for targeted delivery to CD44-expressing tumors.