Facile Supramolecular Approach to Nucleic-Acid-Driven Activatable Nanotheranostics That Overcome Drawbacks of Photodynamic Therapy

Xingshu Li, Sungsook Yu, Dayoung Lee, Gyoungmi Kim, Buhyun Lee, Yejin Cho, Bi Yuan Zheng, Mei Rong Ke, Jian Dong Huang, Ki Taek Nam, Xiaoyuan Chen, Juyoung Yoon

Research output: Contribution to journalArticlepeer-review

120 Scopus citations

Abstract

Supramolecular chemistry provides a "bottom-up" method to fabricate nanostructures for biomedical applications. Herein, we report a facile strategy to directly assemble a phthalocyanine photosensitizer (PcS) with an anticancer drug mitoxantrone (MA) to form uniform nanostructures (PcS-MA), which not only display nanoscale optical properties but also have the capability of undergoing nucleic-acid-responsive disassembly. These supramolecular assemblies possess activatable fluorescence emission and singlet oxygen generation associated with the formation of free PcS, mild photothermal heating, and a concomitant chemotherapeutic effect associated with the formation of free MA. In vivo evaluations indicate that PcS-MA nanostructures have a high level of accumulation in tumor tissues, are capable of being used for cancer imaging, and have significantly improved anticancer effect compared to that of PcS. This study demonstrates an attractive strategy for overcoming the limitations of photodynamic cancer therapy.

Original languageEnglish
Pages (from-to)681-688
Number of pages8
JournalACS Nano
Volume12
Issue number1
DOIs
StatePublished - 23 Jan 2018

Keywords

  • activatable
  • nanotheranostics
  • nucleic-acid-responsive disassembly
  • photodynamic therapy
  • supramolecular assembly

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