Exosomes as a Nanotheranostic Platform in Brain Diseases

Area of Science:

• Biomedical Engineering
• Neuroscience
• Nanotechnology

Background:

• Exosomes are nanoscale extracellular vesicles crucial for intercellular communication.
• Their ability to cross the blood-brain barrier (BBB) makes them promising for central nervous system (CNS) drug delivery.
• Current treatments for brain diseases face challenges due to the BBB.

Purpose of the Study:

• To review advancements in exosome-mediated drug delivery for brain diseases.
• To explore strategies for enhancing exosome targeting and therapeutic efficacy.
• To discuss the potential of exosomes as diagnostic biomarkers.

Main Methods:

• Review of recent scientific literature on exosome-based therapies.
• Analysis of exosome engineering techniques for targeted delivery.
• Evaluation of challenges and future directions in exosome research.

Main Results:

• Exosomes can be engineered for precise targeting of specific brain cells (neurons, glia, endothelial cells).
• Exosome-based therapies show potential for treating neurodegenerative diseases, neuroinflammation, and brain tumors.
• Exosomes are being explored as noninvasive biomarkers for early disease detection.

Conclusions:

• Exosome-mediated drug delivery holds significant promise for treating various brain disorders.
• Optimizing exosome surface modifications and production is key to enhancing therapeutic outcomes.
• Further research is needed to overcome challenges in large-scale production, cargo loading, safety, and regulation.