Journal
SMALL
Volume 15, Issue 49, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smll.201904397
Keywords
biomineralization; cancer metastasis; combination therapy; Fenton reaction; peptide nanotubes
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Funding
- National Natural Science Foundation of China [21775046, 21675055, 21635003]
- Fundamental Research Funds for the Central Universities
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1D peptide nanostructures (i.e., peptide nanotubes, PNTs) exhibit tunable chemo-physical properties and functions such as improved tissue adhesion, increased cellular uptake, and elongated blood circulation. In this study, the application of PNTs as a desirable 1D template for biomineralization of Cu2-xS nanoparticles (Cu2-xS NPs, x = 1-2) is reported. Monodisperse Cu2-xS NPs are uniformly coated on the peptide nanotubes owing to the specific high binding affinity of Cu ions to the imidazole groups exposed on the surface of nanotubes. The Cu2-xS NP-coated PNTs are further covalently grafted with an oxaliplatin prodrug (Pt-CuS-PNTs) to construct a versatile nanoplatform for combination cancer therapy. Upon 808 nm laser illumination, the nanoplatform induces significant hyperthermia effect and elicits reactive oxygen species generation through electron transfer and Fenton-like reaction. It is demonstrated that the versatile nanoplatform dramatically inhibits tumor growth and lung metastasis of melanoma in a B16-F10 melanoma tumor-bearing mouse model by combined photo- and chemotherapy. This study highlights the ability of PNTs for biomineralization of metal ions and the promising potential of such nanoplatforms for cancer treatment.
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