Volume 135, Issue 40 e202309786
Forschungsartikel

In Situ Self-Assembled J-Aggregate Nanofibers of Glycosylated Aza-BODIPY for Synergetic Cell Membrane Disruption and Type I Photodynamic Therapy

Yi-chen Liu

Yi-chen Liu

College of Chemistry, Beijing Normal University, Beijing, 100875 China

Search for more papers by this author
Dr. Guang-jian Liu

Dr. Guang-jian Liu

College of Chemistry, Beijing Normal University, Beijing, 100875 China

Search for more papers by this author
Wei Zhou

Wei Zhou

College of Chemistry, Beijing Normal University, Beijing, 100875 China

Search for more papers by this author
Gai-li Feng

Gai-li Feng

College of Chemistry, Beijing Normal University, Beijing, 100875 China

Search for more papers by this author
Qing-yu Ma

Qing-yu Ma

College of Chemistry, Beijing Normal University, Beijing, 100875 China

Search for more papers by this author
Prof. Yuan Zhang

Prof. Yuan Zhang

College of Chemistry, Beijing Normal University, Beijing, 100875 China

Search for more papers by this author
Prof. Guo-wen Xing

Corresponding Author

Prof. Guo-wen Xing

College of Chemistry, Beijing Normal University, Beijing, 100875 China

Search for more papers by this author
First published: 15 August 2023
Citations: 5

Abstract

The in situ self-assembly of exogenous molecules is a powerful strategy for manipulating cellular behavior. However, the direct self-assembly of photochemically inert constituents into supramolecular nano-photosensitizers (PSs) within cancer cells for precise photodynamic therapy (PDT) remains a challenge. Herein, we developed a glycosylated Aza-BODIPY compound (LMBP) capable of self-assembling into J-aggregate nanofibers in situ for cell membrane destruction and type I PDT. LMBP selectively entered human hepatocellular carcinoma HepG2 cells and subsequently self-assembled into intracellular J-aggregate nanovesicles and nanofibers through supramolecular interactions. Detailed studies revealed that these J-aggregate nanostructures generated superoxide radicals (O2⋅) exclusively through photoinduced electron transfer, thus enabling effective PDT. Furthermore, the intracellular nanofibers exhibited an aggregation-induced retention effect, which resulted in selective toxicity to HepG2 cells by disrupting their cellular membranes and synergizing with PDT for powerful tumor suppression efficacy in vivo.

Conflict of interest

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available in the supplementary material of this article.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.