Beyond boundaries: The therapeutic potential of exosomes in neural microenvironments in neurological disorders.

[Display omitted] • Alzheimer's and Parkinson's: Exosomes reduce protein buildup, inflammation, apoptosis. • Head trauma: Exosomes reduce inflammation, promote neurogenesis and angiogenesis. • Nerve injury: Exosomes reduce inflammation, promote neurogenesis and angiogenesis. • Tumor: Exosomes influence cancer progression, aid diagnosis and drug delivery. • Ischemic stroke: Exosomes reduce inflammation, promote neurogenesis and angiogenesis. Neurological disorders are a diverse group of conditions that can significantly impact individuals' quality of life. The maintenance of neural microenvironment homeostasis is essential for optimal physiological cellular processes. Perturbations in this delicate balance underlie various pathological manifestations observed across various neurological disorders. Current treatments for neurological disorders face substantial challenges, primarily due to the formidable blood–brain barrier and the intricate nature of neural tissue structures. These obstacles have resulted in a paucity of effective therapies and inefficiencies in patient care. Exosomes, nanoscale vesicles that contain a complex repertoire of biomolecules, are identifiable in various bodily fluids. They hold substantial promise in numerous therapeutic interventions due to their unique attributes, including targeted drug delivery mechanisms and the ability to cross the BBB, thereby enhancing their therapeutic potential. In this review, we investigate the therapeutic potential of exosomes across a range of neurological disorders, including neurodegenerative disorders, traumatic brain injury, peripheral nerve injury, brain tumors, and stroke. Through both in vitro and in vivo studies, our findings underscore the beneficial influence of exosomes in enhancing the neural microenvironment following neurological diseases, offering promise for improved neural recovery and management in these conditions. [ABSTRACT FROM AUTHOR]