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Nano Research

Article Title

Efficiency against multidrug resistance by co-delivery of doxorubicin and curcumin with a legumain-sensitive nanocarrier

Authors

Sen Lin, School of Ophthalmology & Optometry and Eye Hospital, Wenzhou Medical University, Wenzhou 325027, China Wenzhou Institute of Biomaterials and Engineering, Chinese Academy of Science, Wenzhou 325000, China School of Biomedical and Engineering, Wenzhou Medical University, Wenzhou 325027, China
Peiling Xie, School of Ophthalmology & Optometry and Eye Hospital, Wenzhou Medical University, Wenzhou 325027, China
Mengmeng Luo, School of Ophthalmology & Optometry and Eye Hospital, Wenzhou Medical University, Wenzhou 325027, China
Qing Li, Wenzhou Institute of Biomaterials and Engineering, Chinese Academy of Science, Wenzhou 325000, China School of Biomedical and Engineering, Wenzhou Medical University, Wenzhou 325027, China
Ling Li, School of Ophthalmology & Optometry and Eye Hospital, Wenzhou Medical University, Wenzhou 325027, China
Jinzhao Zhang, School of Ophthalmology & Optometry and Eye Hospital, Wenzhou Medical University, Wenzhou 325027, China
Qinxiang Zheng, School of Ophthalmology & Optometry and Eye Hospital, Wenzhou Medical University, Wenzhou 325027, China
Hao Chen, School of Ophthalmology & Optometry and Eye Hospital, Wenzhou Medical University, Wenzhou 325027, China School of Biomedical and Engineering, Wenzhou Medical University, Wenzhou 325027, China
Kaihui Nan, School of Ophthalmology & Optometry and Eye Hospital, Wenzhou Medical University, Wenzhou 325027, China School of Biomedical and Engineering, Wenzhou Medical University, Wenzhou 325027, China

Keywords

legumain, doxorubicin, curcumin, co-delivery nanoparticle, multidrug resistance

Abstract

ABSTRACT Multidrug resistance proteins (MDRPs), which are implicated in the mediation of multidrug resistance in tumors, represent the main obstacle to successful chemotherapy. As curcumin (Cur) exerts inhibitory effects on both the expression and function of MDRPs, a nanocarrier for the co-delivery of Cur and doxorubicin (DOX) was prepared to overcome MDR tumors through their synergistic effects. Owing to the overexpression of legumain in tumors, the release profile of DOX from this nanocarrier was designed to be legumain modulated, which was achieved by bridging DOX to a basic material (chitosan) with a legumainsensitive peptide. Compared with nanoparticles that only contain DOX, the coadministration of DOX and Cur significantly inhibited multidrug resistance (P < 0.05) in a multidrug-resistant cancer cell model (MCF-7/ADR cell line), with cytotoxicity to normal cells (L929 cell line). Such inhibition could be ascribed to the increased DOX accumulation in the MCF-7/ADR nucleus. The co-delivery system exhibited good anticancer effects through prolonged circulation time, improved tumor-targeting efficiency, elevation of the tumor inhibition activity, and the suppression of MDRP expression. These data revealed the enormous potential of this co-delivery system for cancer therapy, especially in the later stages where multidrug resistance may develop.

Graphical Abstract

Publisher

Tsinghua University Press

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