Abstract
Artesunate (AS), as an effective new tumour treatment drug, induces cancer cell death based on high intracellular reactive oxygen species (ROS) produced by interacting with ferrous ions. However, the relatively low intracellular ferrous iron ion concentrations and the low efficiency of ROS generation limit its clinical application. Herein, we developed a metal-organic framework-Fe2+ (MOF), and AS was loaded in the MOF and then coated with hyaluronic acid (HA) on the surface of the MOF (HA@MOF-AS) for targeted and enhanced cancer treatment. HA@MOF-AS has high loading efficiency, good monodispersity, biocompatibility, strong cell uptake capacity and high intracellular ROS production, and it can target tumour tissues. In addition, in vivo anticancer studies have shown that HA@MOF-AS not only has high accumulation in tumours but also significantly inhibits tumour growth without significant damage to major organs. Therefore, HA@MOF-AS has excellent potential and may open a new approach for targeted cancer treatment.
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