Microwave-Responsive Engineered Platelet Microneedle Patch for Deep Tumor Penetration and Precision Therapy.

Area of Science:

• Biomedical Engineering
• Nanotechnology
• Oncology

Background:

• Effective tumor therapy requires precise drug delivery and deep tumor penetration.
• Current methods face challenges in targeting and achieving sufficient drug concentrations within tumors.

Purpose of the Study:

• To develop a novel engineered platelet microneedle patch for enhanced transdermal drug delivery in tumors.
• To combine engineered platelets with microwave-responsive nanomedicine for precision thermochemotherapy.

Main Methods:

• Fabrication of a microneedle patch integrating engineered platelets and a microwave-responsive magnetic biometal-organic framework.
• Utilizing microwave hyperthermia to activate nanomedicine and enhance drug penetration.
• Assessing the system's ability to release therapeutic agents and improve cell uptake in the tumor microenvironment.

Main Results:

• The magnetic biometal-organic framework demonstrated effective microwave thermal effects.
• Engineered platelets facilitated drug release and enhanced cell uptake and deep drug penetration when combined with microwave hyperthermia.
• The microneedle patch system enabled localized, repeated hyperthermia treatments.

Conclusions:

• The engineered platelet microneedle patch offers a novel strategy for precise drug delivery activated by microwave thermal therapy.
• This approach effectively enhances transdermal deep drug delivery for local tumor thermochemotherapy.
• This represents a pioneering integration of microwave-responsive nanomedicines with platelets for cancer treatment.