Abstract
Exosomes have emerged as promising tools for targeted drug delivery in biomedical applications and medicine. This review delves into the scientific advancements, challenges, and future prospects specifically associated with these technologies. In this work, we trace the research milestones that led to the discovery and characterization of exosomes and extracellular vesicles, and discuss strategies for optimizing the synthetic yield and the loading of these particles with various therapeutics. In addition, we report the current major issues affecting the field and hampering the clinical translation of these technologies. Highlighting the pivotal role of imaging techniques, we explore how they drive exosome therapy and development by offering insights into biodistribution and cellular trafficking dynamics. Methodologies for vesicle isolation, characterization, loading, and delivery mechanisms are thoroughly examined, alongside strategies aimed at enhancing their therapeutic efficacy. Special emphasis was dedicated to their therapeutic properties, particularly to their ability to deliver biologics into the cytoplasm. Furthermore, we delve into the intricate balance between surface modifications and targeting properties including also transgenic methods aimed at their functionalization and visualization within biological systems. This review underscores the transformative potential of these carriers in targeted drug delivery and identifies crucial areas for further research and clinical translation.
Published Version
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