Combination of Chemotherapy and Mild Hyperthermia Using Targeted Nanoparticles: A Potential Treatment Modality for...

Area of Science:

• Biomedical Engineering
• Nanotechnology
• Oncology

Background:

• Drug resistance is a major challenge in breast cancer treatment.
• Nanomedicine offers targeted delivery, improved efficacy, and reduced side effects.
• Porous silicon nanoparticles (pSiNPs) are effective drug carriers due to high surface area and targeting ligand immobilization.

Purpose of the Study:

• To engineer targeted pSiNPs for co-delivery of chemotherapy and gold nanoclusters (AuNCs) for breast cancer treatment.
• To evaluate the efficacy of combined hyperthermia and chemotherapy using targeted pSiNPs.

Main Methods:

• Engineered breast cancer-targeted pSiNPs co-loaded with an anticancer drug and AuNCs.
• Utilized AuNCs for radiofrequency-induced hyperthermia.
• Tested efficacy in monolayer and 3D cell cultures.

Main Results:

• Combined hyperthermia and chemotherapy via targeted pSiNPs showed 1.5-fold higher efficacy than monotherapy.
• The targeted system demonstrated 3.5-fold higher efficacy compared to non-targeted systems.
• Demonstrated enhanced cell-killing in both 2D and 3D cell culture models.

Conclusions:

• Targeted pSiNPs are a successful nanocarrier for combination therapy in breast cancer.
• This versatile platform shows potential for personalized medicine approaches.
• Co-delivery of chemotherapy and hyperthermia via targeted nanocarriers significantly overcomes drug resistance.