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Updated: Nov 2, 2025
Facile Preparation and Photoactivation of Prodrug-Dye Nanoassemblies
Published on: February 17, 2023
A 4-aminonaphthalimide-based fluorescent traceable prodrug with excellent photoinduced cytotoxicity
Jing Liu1, Shilong Zhong2, Lingling Zhang2
1Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China. xjliu@iccas.ac.cn sgdh@iccas.ac.cn and University of Chinese Academy of Sciences, Beijing, 100049, China.
Abstract:
A blue light activated anti-cancer prodrug, NST, was designed based on a photoactive 4-aminonaphthalimide derivative and an anticancer drug, 10-hydroxycamptothecin. NST was hard to be taken up by living cells and showed negligible dark cytotoxicity. The irradiation caused photocleavage of NST and resulted in high cytotoxicity.
Insights
A novel blue light activated anti-cancer prodrug, NST, demonstrated poor cell uptake and low dark toxicity. Upon irradiation, NST photocleavage yielded high anti-cancer cytotoxicity.
Area of Science:
- Medicinal Chemistry
- Photodynamic Therapy
- Cancer Research
Background:
- Development of targeted cancer therapies is crucial.
- Prodrug strategies can improve drug delivery and reduce side effects.
- Photodynamic activation offers localized therapeutic potential.
Purpose of the Study:
- To design and synthesize a blue light activated anti-cancer prodrug (NST).
- To evaluate the cellular uptake and cytotoxicity of NST in vitro.
- To assess the therapeutic efficacy of NST upon blue light irradiation.
Main Methods:
- Synthesis of NST by conjugating a 4-aminonaphthalimide derivative with 10-hydroxycamptothecin.
- Assessment of cellular uptake using standard cell biology techniques.
- Evaluation of dark cytotoxicity and photo-induced cytotoxicity after blue light exposure.
Main Results:
- NST exhibited limited cellular uptake and negligible cytotoxicity in the absence of light.
- Blue light irradiation of NST led to photocleavage.
- Photocleavage of NST resulted in significantly enhanced cytotoxicity against cancer cells.
Conclusions:
- NST functions as an effective blue light activated anti-cancer prodrug.
- Photodynamic activation of NST overcomes limitations in cellular uptake and dark toxicity.
- This approach holds promise for targeted cancer therapy.
