Abstract
Molybdenum disulfide (MoS2) has been developed for medical uses due to its excellent medically beneficial characteristics. This research was designed to develop a multifunctional nano-drug delivery system based on the nano-structure of MoS2 for combined chemo/gene/photothermal therapy targeting multidrug-resistant cancer. MoS2 nanosheets were prepared by a hydrothermal reaction and modified. Afterward, the nanocarrier was characterised. In vitro cytotoxicity of the drug delivery systems on human breast adenocarcinoma cell lines was assessed. The nanocarrier was a flake-like structure with a uniform hydrodynamic diameter and possessing good colloidal stability. The nanocarrier showed the capacity to be deployed for co-delivery of Doxorubicin (DOX) and siRNA. The release of DOX could be triggered and enhanced by pH and application of near-infrared (NIR) laser. The nanocarrier had a good photothermic response and stability. The nanocarrier had little effect on the cells and exhibited good biocompatibility. Measurement of the therapeutic efficacy showed that synergistic therapy combining chemo-, gene- and photothermal therapy deploying this drug delivery system will achieve a better anticancer effect on drug-resistant cancer cells than DOX alone. Our results suggest that this drug delivery system has potential application in the therapeutic strategy for drug-resistant cancer.
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