Mathematical Modeling of Targeted Drug Delivery Using Magnetic Nanoparticles during Intraperitoneal Chemotherapy

Area of Science:

• Biomedical Engineering
• Oncology
• Nanotechnology

Background:

• Intraperitoneal (IP) chemotherapy is a key treatment for peritoneal malignancies (PMs).
• Tumor microenvironmental barriers impede drug delivery and penetration, reducing treatment efficacy.
• Novel drug delivery systems are needed to overcome these limitations.

Purpose of the Study:

• To investigate the efficacy of magnetically controlled drug targeting (MCDT) in IP chemotherapy using a mathematical model.
• To compare the drug delivery efficiency of MCDT with conventional IP chemotherapy.
• To evaluate the impact of magnetic field parameters and nanoparticle characteristics on treatment outcomes.

Main Methods:

• Development of a mathematical model to simulate drug delivery dynamics.
• Inclusion of drug binding and cancer cell internalization mechanisms in the model.
• Evaluation of drug penetration depth, area, and cancer cell kill fraction.

Main Results:

• MCDT increased drug penetration depth over 13-fold compared to conventional IP chemotherapy.
• The drug penetration area (DPA) was enhanced by more than 1.4 times with MCDT.
• The fraction of killed cancer cells increased to 6.5% with magnetic drug delivery, a 2.5-fold improvement over conventional methods.

Conclusions:

• MCDT is an effective strategy to enhance drug delivery in IP chemotherapy for peritoneal malignancies.
• Optimizing magnetic field strength, magnet-tumor distance, and magnetic nanoparticle size can further improve treatment efficiency.
• This approach holds promise for overcoming microenvironmental barriers and improving patient outcomes.