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  • Title: Synergistically Improved Anti-tumor Efficacy by Co-delivery Doxorubicin and Curcumin Polymeric Micelles.
    Author: Wang J, Ma W, Tu P.
    Journal: Macromol Biosci; 2015 Sep; 15(9):1252-61. PubMed ID: 25981672.
    Abstract:
    P-gp mediated drug efflux has been recognized as a major obstacle limiting the success of cancer chemotherapy. To overcome this issue, doxorubicin (DOX) and curcumin (Cur; P-gp inhibitor and apoptosis inhibitor) co-encapsulated pegylated polymeric micelles ((DOX+Cur)-PMs) were designed, prepared and characterized to simultaneously deliver chemotherapeutic drug and multidrug resistance (MDR) modulator to tumor sites. The (DOX+Cur)-PMs were spherical nano-size particle, with a loading content of 6.83%, and high colloidal stability. Co-delivery micelles exhibited excellent cytotoxicity by reversing MDR, promoting cellular uptake and enhancing cellular apoptosis in MCF7/Adr cells. The tumor growth inhibitory effect of (DOX+Cur)-PMs in 4T1-bearing mice was more effective compared with the combination solution of DOX and Cur and even DOX-PMs. In conclusion, simultaneous delivery of DOX and Cur by (DOX+Cur)-PMs has been demonstrated to be a promising approach for overcoming MDR and improving antitumor efficacy.
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