Photoinduced free radical-releasing systems and their anticancer properties
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Published:2022-05-13
Issue:8
Volume:21
Page:1405-1417
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ISSN:1474-9092
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Container-title:Photochemical & Photobiological Sciences
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language:en
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Short-container-title:Photochem Photobiol Sci
Author:
Yan Jieyu,Lai Haiwang,Zeng Boning,Wang Liqing,Xing Feiyue,Xiao Pu
Abstract
AbstractCancer has been a serious threat and impact on the health and life of human. Phototherapy is considered as a promising therapeutic method to replace the traditional treatment in clinic owing to its noninvasive nature and high efficiency. Photoinitiators have long been used in the field of photopolymerization; however, few studies have been carried out on their potential as anticancer agents under light irradiation. In this study, the effect of a photoinitiator, diphenyl (2, 4, 6-trimethylbenzoyl) phosphine oxide (TPO), on breast cancer is investigated and the related mechanism is elucidated. It is found that TPO has low dark toxicity and significant phototoxicity. TPO can inhibit cell growth and development and promote cell apoptosis through a mitochondrial pathway under light irradiation. Further studies show that cell apoptosis is induced by free radicals produced from the photolysis of TPO to activate JNK phosphorylation. Overall, we identify the antitumor effects of TPO in vitro for the first time, and provides a proof of concept for its application as a novel photolatent therapeutic drug.
Graphical abstract
Funder
China Postdoctoral Science Foundation Grant Australian National University
Publisher
Springer Science and Business Media LLC
Subject
Physical and Theoretical Chemistry
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