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- W4366997725 endingPage "e202201448" @default.
- W4366997725 startingPage "e202201448" @default.
- W4366997725 abstract "Retinal pigment epithelium (RPE) is essential for the survival of retinal photoreceptors. To study retinal degeneration, sodium iodate (NaIO3) has been used to cause oxidative stress-induced RPE death followed by photoreceptor degeneration. However, analyses of RPE damage itself are still limited. Here, we characterized NaIO3-induced RPE damage, which was divided into three regions: periphery with normal-shaped RPE, transitional zone with elongated cells, and center with severely damaged or lost RPE. Elongated cells in the transitional zone exhibited molecular characteristics of epithelial-mesenchymal transition. Central RPE was more susceptible to stresses than peripheral RPE. Under stresses, SIRT6, an NAD+-dependent protein deacylase, rapidly translocated from the nucleus to the cytoplasm and colocalized with stress granule factor G3BP1, leading to nuclear SIRT6 depletion. To overcome this SIRT6 depletion, SIRT6 overexpression was induced in the nucleus in transgenic mice, which protected RPE from NaIO3 and partially preserved catalase expression. These results demonstrate topological differences of mouse RPE and warrant further exploring SIRT6 as a potential target for protecting RPE from oxidative stress-induced damage." @default.
- W4366997725 created "2023-04-27" @default.
- W4366997725 creator A5006451527 @default.
- W4366997725 creator A5051627423 @default.
- W4366997725 creator A5059540588 @default.
- W4366997725 creator A5061038965 @default.
- W4366997725 date "2023-04-25" @default.
- W4366997725 modified "2023-09-26" @default.
- W4366997725 title "SIRT6 overexpression in the nucleus protects mouse retinal pigment epithelium from oxidative stress" @default.
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