Journal
WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY
Volume 13, Issue 3, Pages -Publisher
WILEY
DOI: 10.1002/wnan.1688
Keywords
extracellular vesicles; labeling; molecular imaging; precision medicine
Funding
- Maryland Stem Cell Research Foundation [2018-MSCRFD-4327, 2019-MSCRFF-5031]
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Extracellular vesicles (EVs) have garnered attention as potential therapeutic agents, especially in the field of central nervous system diseases. Successful clinical studies require more information on the biodistribution and tracking of EVs in vivo. Advanced imaging techniques play a crucial role in facilitating the clinical translation of EV-based therapeutics.
Extracellular vesicles (EVs) are natural and diverse lipid bilayer-enclosed particles originating from various cellular components and containing an abundance of cargoes. Due to their unique properties, EVs have gained considerable interest as therapeutic agents for a variety of diseases, including central nervous system (CNS) disorders. Their therapeutic value depends on cell origin but can be further enhanced by enrichment of cargo when used as drug carriers. Therefore, there has been significant effort directed toward introducing them to clinical practice. However, it is essential to avoid the failures we have seen with whole-cell therapy, in particular for the treatment of the CNS. Successful launching of clinical studies is contingent upon the understanding of the biodistribution of EVs, including their uptake and clearance from organs and specific homing into the region of interest. A multitude of noninvasive imaging methods has been explored in vitro to investigate the spatio-temporal dynamics of EVs administered in vivo. However, only a few studies have been performed to track the delivery of EVs, especially delivery to the brain, which is the most therapeutically challenging organ. We focus here on the use of advanced imaging techniques as an essential tool to facilitate the acceleration of clinical translation of EV-based therapeutics, especially in the CNS arena. This article is categorized under: Therapeutic Approaches and Drug Discovery > Nanomedicine for Neurological Disease Diagnostic Tools > in vivo Nanodiagnostics and Imaging
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