2-Methoxyestradiol Inhibits Radiation-Induced Skin Injuriesopen access
- Authors
- Kim, Ji-Hee; Nam, Jae-Kyung; Kim, A-Ram; Park, Min-Sik; Lee, Hae-June; Park, Joonho; Kim, Joon; Lee, Yoon-Jin
- Issue Date
- Apr-2022
- Publisher
- MDPI
- Keywords
- 2-Methoxyestradiol; radiation-induced skin injury; HIF 1-alpha; vascular fibrosis
- Citation
- INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES, v.23, no.8
- Indexed
- SCIE
SCOPUS
- Journal Title
- INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
- Volume
- 23
- Number
- 8
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/140826
- DOI
- 10.3390/ijms23084171
- ISSN
- 1661-6596
- Abstract
- Radiation-induced skin injury (RISI) is a main side effect of radiotherapy for cancer patients, with vascular damage being a common pathogenesis of acute and chronic RISI. Despite the severity of RISI, there are few treatments for it that are in clinical use. 2-Methoxyestradiol (2-ME) has been reported to regulate the radiation-induced vascular endothelial-to-mesenchymal transition. Thus, we investigated 2-ME as a potent anti-cancer and hypoxia-inducible factor 1 alpha (HIF-1 alpha) inhibitor drug that prevents RISI by targeting HIF-1 alpha. 2-ME treatment prior to and post irradiation inhibited RISI on the skin of C57/BL6 mice. 2-ME also reduced radiation-induced inflammation, skin thickness, and vascular fibrosis. In particular, post-treatment with 2-ME after irradiation repaired the damaged vessels on the irradiated dermal skin, inhibiting endothelial HIF-1 alpha expression. In addition to the increase in vascular density, post-treatment with 2-ME showed fibrotic changes in residual vessels with SMA(+)CD31(+) on the irradiated skin. Furthermore, 2-ME significantly inhibited fibrotic changes and accumulated DNA damage in irradiated human dermal microvascular endothelial cells. Therefore, we suggest that 2-ME may be a potent therapeutic agent for RISI.
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Collections - College of Life Sciences and Biotechnology > Division of Life Sciences > 1. Journal Articles
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