Supramolecular phthalocyanine assemblies-enhanced synergistic photodynamic and photothermal therapy guided by photoacoustic imaging

Yuan Yuan Zhao, Xiaojun Zhang, Zixuan Chen, Yihui Xu, Heejeong Kim, Hyunsun Jeong, You Rim Lee, Jiah Lee, Xingshu Li, Juyoung Yoon

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Phototherapeutic nanoplatforms that combine photodynamic therapy (PDT) and photothermal therapy (PTT) with the guidance of photoacoustic (PA) imaging are an effective strategy for the treatment of tumors, but establishing a universal method for this strategy has been challenging. In this study, we present a supramolecular assembly strategy based on Förster resonance energy transfer to construct a supramolecular nanostructured phototherapeutic agent (PcDA) via the anion and cation supramolecular interaction between two water-soluble phthalocyanine ramifications, PcD and PcA. This approach promotes the absorption of energy, thus enhancing the generation of reactive oxygen species (ROS) and heat by PcDA, improving its therapeutic efficacy, and overcoming the low photon utilization efficiency of conventional PSs. Notably, after the intravenous injection of PcDA, neoplastic sites could be clearly visualized using PA imaging, with a PA signal-to-liver ratio as high as 11.9. Due to these unique features, PcDA exhibits excellent antitumor efficacy in a preclinical model at a low dose of light irradiation. This study thus offers a general approach for the development of efficient phototherapeutic agents based on the simultaneous effect of PDT and PTT against tumors with the assistance of PA imaging.

Original languageEnglish
JournalAggregate
DOIs
StateAccepted/In press - 2024

Bibliographical note

Publisher Copyright:
© 2024 The Authors. Aggregate published by SCUT, AIEI, and John Wiley & Sons Australia, Ltd.

Keywords

  • Förster resonance energy transfer
  • photoacoustic imaging
  • photodynamic therapy
  • photothermal therapy
  • supramolecular assembly

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