Abstract
This study reports an effective and facile strategy for developing multifunctional nanoplatforms by the in situ doping of manganese metal into stellate mesoporous silica nanoparticles (Mn-SMSN). The resulting Mn-SMSN@DOX-IR-780 effectively integrated enhanced chemodynamic therapy (CDT) combined with tumor imaging in a single platform after additional loading of doxorubicin hydrochloride (DOX) and IR-780 iodide (IR-780) onto Mn-SMSN. Mn-SMSN@DOX-IR-780 demonstrated excellent in vitro efficacy in killing cancer cells and inhibiting cancer cell migration and invasion. Further mechanistic investigations demonstrated that Mn-SMSN@DOX-IR-780 effectively promoted the production of cytotoxic reactive oxygen species to kill tumor cells. Moreover, Mn-SMSN@DOX-IR-780 efficiently delivered DOX and IR-780 into cells, indicating potential for chemodynamic therapy and tumor imaging. In summary, the developed Mn-SMSN@DOX-IR-780 integrated CDT and image guidance, which can provide insights for future biomedical research applications concerning efficient prostate cancer treatment.
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