Biomaterial-based extracellular vesicle delivery for therapeutic applications

Area of Science:

• Biomedical Engineering
• Drug Delivery Systems
• Nanotechnology

Background:

• Extracellular vesicles (EVs) show therapeutic promise in preclinical models for tissue engineering, drug delivery, and cancer therapy.
• Current EV delivery methods (local/systemic injection) lead to rapid clearance, limiting therapeutic effectiveness.
• Biomaterial-based delivery systems are emerging as a strategy to overcome EV clearance issues.

Purpose of the Study:

• To review biomaterial-based systems for delivering therapeutic extracellular vesicles (EVs).
• To highlight strategies for controlled release of EVs from biomaterial carriers.
• To discuss challenges hindering the clinical translation of these advanced delivery systems.

Main Methods:

• Literature review of biomaterial-based extracellular vesicle (EV) delivery systems.
• Analysis of controlled release strategies employed in these systems.
• Discussion of preclinical and clinical translation hurdles.

Main Results:

• Various biomaterials have been investigated for encapsulating and delivering EVs.
• Controlled release mechanisms can significantly prolong EV retention at target sites.
• Significant challenges remain in scaling up production and ensuring safety for clinical application.

Conclusions:

• Biomaterial-based delivery significantly enhances the therapeutic potential of extracellular vesicles (EVs).
• Further research into controlled release and overcoming clinical translation barriers is crucial for advancing EV therapies.