Unveiling Exosome Potential: Transforming Treatments for Neurodegeneration.

Exosomes, tiny extracellular vesicles, hold significant potential as biological nanocarriers for diverse therapeutic agents due to their exceptional ability to navigate through the barriers of biological systems. This comprehensive review delves into the capability of exosomes in the therapy of neurodegenerative disorders, concentrating on their potential for targeted drug delivery. It examines the complex processes involved in exosome-mediated drug delivery, including targeting, cellular uptake, intracellular trafficking, and therapeutic release. Insights from preclinical studies and clinical trials are exploited, highlighting the impactful applications of exosomes, particularly in the treatment of Parkinson's, Alzheimer's, ALS, and Huntington's diseases. The review also addresses challenges such as immunogenicity, scalability, and regulatory obstacles while exploring emerging technologies like advanced exosome engineering, personalized medicine, and the integration of nanotechnology. Overall, this review accentuates the potential impact of exosome-based treatments in biomedicine alongside the critical need to overcome existing barriers.