Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 58, Issue 19, Pages 6290-6294Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201900884
Keywords
cancer therapy; cellular targeting; endocytosis; nanoparticles; nucleus delivery
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Funding
- National Natural Science Foundation of China [21721003, 21635007]
- National Key Research and Development Program of China [2016YFA0203200]
- K.C. Wong Education Foundation
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Intracellular targeting has the same potential as tissue targeting to increase therapy efficacy, especially for drugs that are toxic to DNA. By adjusting intracellular traffic, we developed a novel direct-nucleus-delivery platform based on C5N2 nanoparticles (NPs). Supramolecular interactions of C5N2 NPs with the cell membrane enhanced cell uptake; abundant edge amino groups promoted fast and effective rupture of early endosomes; and the appropriate size of the NPs was also crucial for size-dependent nuclear entry. As a proof of concept, the platform was not only suitable for the effective delivery of molecular drugs/dyes (doxorubicin, hydroxycamptothecine, and propidium iodide) and MnO2 nanoparticles to the nucleus, but was also photoresponsive for nucleus-targeting photothermal therapy (PTT) and photodynamic therapy (PDT) to further greatly increase anticancer efficacy. This strategy might open the door to a new generation of nuclear-targeted enhanced anticancer therapy.
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