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논문 기본 정보

자료유형
학술저널
저자정보
Heo Soo-Min (Department of Obstetrics and Gynecology, Chosun University Hospital, Gwangju, Korea) Ahn Tae-Gyu (Department of Obstetrics and Gynecology, Chosun University Hospital, Gwangju, Korea) Yang So-Ra (Department of Obstetrics and Gynecology, Chosun University Hospital, Gwangju, Korea) Liu Hyunju (Department of Obstetrics and Gynecology, Chosun University Hospital, Gwangju, Korea)
저널정보
조선대학교 의학연구원 Medical Biological Science and Engineering Medical Bilogical Science and Engineering Vol.7 No.1
발행연도
2024.1
수록면
1 - 8 (8page)
DOI
10.30579/mbse.2024.7.1.1

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Photodynamic therapy (PDT) is a minimally invasive cancer treatment undergoing research to in crease its therapeutic effect. This study investigated the effect of iron administration time on the anticancer effects of PDT. A cancer-bearing mouse model was constructed using a colorectal cancer cell line (CT26). Iron was administered 24 h and 1 h before laser irradiation (24hFe+PDT and 1hFe+PDT groups respectively), followed by PDT. Tumor volume was measured up to 14 d after PDT, and 8 hydroxyguanosine (8-OHdG) and thiobarbituric acid reactive substance (TBARS) in the tumor tissue were measured 24 h after PDT. Inflammation-related gene expression in tumor tissue was measured using RNA sequencing. Comparison of the PDT and Fe groups revealed that tumor volume increased 2.75 times in the PDT group after 14 d of PDT, with no difference between the PDT and 24hFe+PDT groups, while in the 1hFe+PDT group tumor vol ume decreased 0.49 times. After 24 h of PDT, the 8-OHdG and TBARS content in the tumor tissue increased by 60% and 68% respectively in the 1hFe+PDT group compared with the PDT group, with no difference observed between the PDT and 24hFe+PDT groups. Gene expression was significantly increased in the 1hFe+PDT group 24 h after PDT and included Ccl12, Cxcl1, Cxcl2, Cxcl5, IL1b, and Il6, which are related to the inflammatory response in tumor tissues. Iron administration 1 h before PDT increased the anticancer effect of PDT probably as a result of in creased oxidative damage.

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