Journal
NANOSCALE
Volume 8, Issue 13, Pages 7209-7216Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5nr05577f
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Funding
- National Basic Research Program of China (973 Program) [2013CB932500]
- National Science and Technology Major Project [2012ZX09304004]
- Innovation Talent Training Plan for Doctoral Students Studying National Key Disciplines, Shanghai Medical School, Fudan University
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Melittin, the major component of the European bee venom, is a potential anticancer candidate due to its lytic properties. However, in vivo applications of melittin are limited due to its main side effect, hemolysis, especially when applied through intravenous administration. The polyethylene glycol-stabilized lipid disk is a novel type of nanocarrier, and the rim of lipid disks has a high affinity to amphiphilic peptides. In our study, a c(RGDyK) modified lipid disk was developed as a tumor targeted drug delivery system for melittin. Cryo-TEM was used to confirm the shape and size of lipid disks with or without c(RGDyK) modification. In vitro and in vivo hemolysis analyses revealed that the hemolysis effect significantly decreased after melittin associated with lipid disks. Importantly, the results of our in vivo biodistribution and tumor growth inhibitory experiments showed that c(RGDyK) modification increased the distribution of lipid disks in the tumor and the anticancer efficacy of melittin loaded lipid disks. Thus, we successfully achieved a targeted drug delivery system for melittin and other amphiphilic peptides with a good therapeutic effect and low side effects.
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