Multifunctional Nanotherapeutics for Drug-Resistant Breast Cancer

Tumors are inherently resilient and always develop drug-resistance, leading to poor patient therapy effect. With the developing of sophisticated analytical tools, some novel strategy on improving targeting of anti-cancer delivery is developed to better thwart drug-resistance. This report demonstrates a multilayered nano-system to serve as a multifunctional platform for the treatment of drug-resistant breast cancers. This nano-system is composed of a poly (lactic-co-glycolic acid) core, a liposome second layer, and a hyaluronic acid outmost layer. The different types of drug, loaded in different layers, are released in a controlled and sequential manner upon internalization and localization. This recreated the time-staggering effect necessary for maximal efficacy.