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- Title
Effect of Esculetin on Tert -Butyl Hydroperoxide-Induced Oxidative Injury in Retinal Pigment Epithelial Cells In Vitro.
- Authors
Jung, Woo Kwon; Park, Su-Bin; Yu, Hwa Young; Kim, Yong Hwan; Kim, Junghyun
- Abstract
Esculetin is a coumarin-derived compound with antioxidant and anti-inflammatory properties. The current study aims to evaluate the therapeutic implications of esculetin on retinal dysfunction and uncover the underlying mechanisms. Tert-butyl hydroperoxide (t-BHP) at a concentration of 300 μM was used to induce oxidative stress in human retinal pigment epithelial cell line (ARPE-19) cells. Esculetin at concentrations below 250 μM did not cause cytotoxicity to ARPE-19 cells. Cell viability analysis confirmed that t-BHP induced oxidative injury of ARPE-19 cells. However, ARPE-19 cells were protected from t-BHP-induced oxidative injury by esculetin in a concentration-dependent manner. As a result of the TUNEL assay to confirm apoptosis, esculetin treatment reduced the number of TUNEL-positive cells. Esculetin down-regulated the expression levels of Bax, Caspase-3, and PARP and up-regulated the expression level of Bcl2. Collectively, this study demonstrates that esculetin exerts potent antioxidant properties in ARPE-19 cells, inhibiting t-BHP-induced apoptosis under the regulation of apoptotic factors.
- Subjects
RHODOPSIN; CHROMATOPHORES; EPITHELIAL cells; HYDROPEROXIDES; RETINAL injuries; CELL analysis
- Publication
Molecules, 2022, Vol 27, Issue 24, p8970
- ISSN
1420-3049
- Publication type
Article
- DOI
10.3390/molecules27248970