Potential of Ferritin-Based Platforms for Tumor Immunotherapy

Area of Science:

• Biomedical Engineering
• Nanotechnology
• Immunology

Background:

• Ferritin is an iron storage protein crucial for iron homeostasis and antioxidant activity.
• Its unique structure (24 self-assembled subunits) and properties offer advantages for drug encapsulation and targeting.
• Ferritin's natural targeting functions and modifiable surface enhance its potential in nanomedicine.

Purpose of the Study:

• To review the application of ferritin as a tumor immunotherapy platform.
• To explore ferritin's use as a vaccine or nanocarrier for immunomodulatory drugs.
• To discuss challenges and future directions for ferritin-based nanoplatforms in cancer therapy.

Main Methods:

• Literature review of research applying ferritin in tumor immunotherapy.
• Analysis of ferritin's targeting mechanisms (dendritic cells, TAMs, CAFs, tumor cells).
• Examination of a ferritin-based vaccine in Phase I clinical trials for COVID-19.

Main Results:

• Ferritin demonstrates potential as a tumor immune vaccine and nanocarrier for immunomodulators.
• A ferritin-based vaccine targeting SARS-CoV-2 variants is in Phase I clinical trials.
• Research highlights ferritin's advantages: particle size, drug encapsulation, targeting, and surface modification.

Conclusions:

• Ferritin-based nanoplatforms hold significant potential for advancing tumor immunotherapy.
• Overcoming barriers in drug loading, modification sites, and animal models is crucial for clinical translation.
• Ferritin offers a promising avenue for developing novel cancer therapies with high clinical transformation possibility.