Targeted delivery of peptides, proteins, and genes by receptor-mediated endocytosis.

Receptor-mediated endocytosis (RME) is one type of delivery system by which therapeutic agents can be specifically transported to their target. Although many successful studies have been performed at a preclinical level, its clinical application is restricted by a number of factors, including the low targeting efficiency that stems from the characteristics of RME. One important approach to overcome this is to improve the drug delivery system by a series of chemical modifications and evaluate the drug targeting efficiency from a kinetic point of view.