Exosomes are nanoscale vesicles derived from the inner membrane of cells

containing life information such as nucleic acids

proteins and lipids. They play an important role in life activities as a mechanism of intercellular communication. Compared to liposome carriers

exosomes are more stable

biocompatible and less immunogenic

and can penetrate biological barriers such as the blood-brain barrier and the placental barrier. This article focused on the basis of exosome vector targeting

the method of carrier loading and the current application progress and prospects.