Photoinduced free radical-releasing systems and their anticancer properties.
Photochem Photobiol Sci
; 21(8): 1405-1417, 2022 Aug.
Article
in En
| MEDLINE
| ID: mdl-35553411
ABSTRACT
Cancer 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.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Photoinitiators, Dental
Limits:
Humans
Language:
En
Journal:
Photochem Photobiol Sci
Journal subject:
BIOLOGIA
/
QUIMICA
Year:
2022
Document type:
Article
Affiliation country:
China