Recent Advances on Extracellular Vesicles in Central Nervous System Diseases

Area of Science:

• Neuroscience
• Cell Biology
• Biochemistry

Background:

• Extracellular vesicles (EVs) are lipid-bilayer encapsulated particles released by cells, carrying proteins, nucleic acids, and metabolites.
• Advancements in separation and characterization reveal diverse EV subtypes and functions.
• In the central nervous system (CNS), EVs play roles in neuronal function, synaptic plasticity, myelination, neuroinflammation, and protein aggregate dynamics.

Purpose of the Study:

• To review the fundamental biological properties of EVs.
• To focus on the applications of EVs in central nervous system (CNS) diseases.
• To highlight the potential of EVs as diagnostic biomarkers and therapeutic agents for CNS disorders.

Main Methods:

• Literature review of existing research on extracellular vesicles.
• Analysis of studies detailing EV composition and function in the CNS.
• Examination of research on EV applications in CNS disease diagnosis and therapy.

Main Results:

• EVs are involved in numerous physiological and pathological CNS processes.
• EV constituents change with cellular activity, reflecting tissue states.
• EVs are distributed widely in biological fluids, serving as potential biomarkers for CNS diseases like neurodegenerative disorders, cerebrovascular diseases, traumatic brain injuries, and brain tumors.
• EVs exhibit biocompatibility, can cross the blood-brain barrier, and protect their cargo, indicating therapeutic potential.

Conclusions:

• Extracellular vesicles (EVs) are versatile biological nanoparticles with significant implications for central nervous system (CNS) health and disease.
• EVs hold considerable promise as diagnostic biomarkers and therapeutic agents for a range of CNS conditions.
• Further research into EV biology and applications could revolutionize the management of neurological disorders.