Abstract Title:

Melittin-Containing Hybrid Peptide Hydrogels for Enhanced Photothermal Therapy of Glioblastoma.

Abstract Source:

ACS Appl Mater Interfaces. 2017 Aug 9 ;9(31):25755-25766. Epub 2017 Jul 25. PMID: 28714303

Abstract Author(s):

Honglin Jin, Guifang Zhao, Jianli Hu, Quanguang Ren, Kui Yang, Chao Wan, Ai Huang, Pindong Li, Jue-Ping Feng, Jing Chen, Zhenwei Zou

Article Affiliation:

Honglin Jin


The design of biocompatible and efficacious anticancer biomaterials to achieve relatively low tumor recurrence rates is the main pursuit of cancer photothermal therapy (PTT). RADA16-I is a synthetic amphiphilic peptide with the sequence RADARADARADARADA that can self-assemble into a peptide nanofiber hydrogel. In this study, we synthesized a novel melittin-RADA32-indocyanine green (ICG) hydrogel ("MRI hydrogel"), which contains melittin in the peptide hydrogel backbone and ICG in the hydrogel matrix, for enhanced PTT of glioblastomas. The MRI hydrogel exhibited physiologic characteristics similar to those of the RADA16 hydrogel, while displaying concentration-dependent cytotoxicity to C6 glioma cells and photothermal effects. The in vivo biodistribution of the MRI hydrogel was visualized by near-infrared fluorescence and photoacoustic imaging. More importantly, in vivo PTT provided by the MRI hydrogel significantly reduced the tumor size and the tumor recurrence rate compared with the RADR16-ICG hydrogel and other controls, suggesting a synergistic effect of MRI hydrogel-carried melittin and ICG-based PTT treatment. Thus, MRI provides an alternative tool for the safe and efficient PTT treatment of tumors.

Study Type : Animal Study
Additional Links
Pharmacological Actions : Chemotherapeutic : CK(2328) : AC(1086)

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