Abstract
The drug delivery systems (DDSs) introduced in recent years have been wide recognized to greatly evaluate the efficacy of drugs. With the aim to increase drug targeting to tumors as well as decrease the side effect of both drug and drug carriers, this study has developed a hybrid DDS by incorporation zinc based metal-organic framework (Zn-MOF) and folic acid (FA). Moreover, adriamycin (Adr) as a model anticancer drug was loaded into the FA/Zn-MOF nanoparticle. The as-prepared FA/ZnMOF/Adr was expected to serve as a tumor targeting DDS that capable of effectively delivering Adr to cervical tumors. Characterization revealed that FA/Zn-MOF/Adr was nanosized spherical particles with high stability and biocompatibility. Most importantly, the FA/Zn-MOF/Adr could realize positive targeting to FA overexpressed HeLa cells through folate receptor (FR). Therefore, FA/Zn-MOF/Adr resulted enhanced in vitro and in vivo anticancer benefits than than free Adr or FA unmodified Zn-MOF/Adr.
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