Nanolab in a Cell: Crystallization-Induced In Situ Self-Assembly for Cancer Theranostic Amplification.
Jianxing WangJie LiMeng LiKe MaDong WangLei SuXue-Ji ZhangBen-Zhong TangPublished in: Journal of the American Chemical Society (2022)
Conducting crystallization-assisted self-assembly in living biosystems to obtain large-size nanoparticles and achieve a specific physiological purpose remains an appealing yet significantly challenging task. In this study, we designed Au(I)-disulfide nanosheets containing an aggregation-induced emission photosensitizer, namely, NSs@TTVP, which exhibited pH-responsive crystallization-driven self-assembly capability in lysosomes of cancer cells and tumor tissues of mice. The crystallization process endowed NSs@TTVP with a microscale morphology, stronger fluorescence output, and highly enhanced reactive oxygen species production efficiency. The in vivo results demonstrated that NSs@TTVP shows both long-term retention in tumors and extensive destruction to cancer cells, making it supremely powerful for fluorescence imaging-guided tumor tracking and inhibition.
Keyphrases
- fluorescence imaging
- photodynamic therapy
- reactive oxygen species
- papillary thyroid
- single cell
- gene expression
- high glucose
- diabetic rats
- type diabetes
- high fat diet induced
- squamous cell carcinoma
- quantum dots
- mesenchymal stem cells
- adipose tissue
- skeletal muscle
- insulin resistance
- lymph node metastasis
- label free