RESUMO
Aim: Multidrug resistance is the main reason for the failure of chemotherapy during the treatment of the tumor. To overcome multidrug resistance, this study attempts to develop a novel transdermal drug-delivery system (TDDS) loading cytotoxic drug and chemosensitizer. Materials & methods: The polyethylenimine-modified ethosomes (Eth-PEI) and sodium cholate-modified ethosomes (Eth-SC) were firstly fabricated, and then a novel TDDS based on the carriers complex of Eth-PEI/Eth-SC was prepared by electrostatic interaction and evaluated both in vitro and in vivo. Results: The Eth-PEI/Eth-SC showed the excellent antitumor effect on treating melanoma, using doxorubicin and curcumin as the cytotoxic drug and chemosensitizer, respectively. Conclusion: The as-prepared TDDS composed of Eth-PEI/Eth-SC loading multidrug is an effective means for treating melanoma.