Polymeric particle-based antigen delivery system: From immunological engineering to clinical translation

Area of Science:

• Biomaterials Science
• Immunology
• Vaccine Technology

Background:

• Recombinant subunit and nucleic acid vaccines show promise but require advanced delivery systems for optimal efficacy.
• Polymeric particles offer advantages like antigen stabilization, enhanced immunogenicity, and controlled release.
• Their biocompatibility and biodegradability make them suitable for vaccine and adjuvant applications.

Purpose of the Study:

• To review the properties and applications of polymer-based carriers in vaccine delivery.
• To evaluate recent advancements in polymer vaccine formulations for co-delivery of antigens and immunostimulatory agents.
• To discuss future directions in developing next-generation polymer-particle vaccines.

Main Methods:

• Literature review of physicochemical properties, immunological mechanisms, and release kinetics of polymer-based carriers.
• Critical evaluation of recent progress in polymer vaccine formulations.
• Analysis of co-delivery strategies for antigens and immunostimulatory agents.

Main Results:

• Polymeric particles possess unique properties beneficial for vaccine delivery, including antigen stability and controlled release.
• Recent formulations focus on co-delivering antigens with immunostimulatory agents using polymer carriers.
• Computational material design and immune profiling are emerging as key areas for future development.

Conclusions:

• Polymer-based particles are a versatile platform for next-generation vaccine development.
• Intelligent polymer systems hold potential for single-dose, cold-chain-independent vaccines.
• Integrating material design with immune profiling is crucial for future advancements.