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Resveratrol attenuates radiation enteritis through the SIRT1/FOXO3a and PI3K/AKT signaling pathways

Authors :
Shiwu Zhang
Hui Wang
Haoren Qin
Xipeng Zhang
Heng Zhang
Siwei Zhu
Source :
Biochemical and Biophysical Research Communications. 554:199-205
Publication Year :
2021
Publisher :
Elsevier BV, 2021.

Abstract

Radiation enteritis (RE) is the most common radiotherapy complication, and effective RE treatments are lacking. Resveratrol exerts beneficial effects on radiation injury. However, the effect of resveratrol in radiation-induced intestinal injury and the underlying mechanism remain unclear. Here, a C57BL/6 mouse model of RE was established and an intestinal epithelial cell line was used to evaluate the protective effects of resveratrol against radiation-induced intestinal injury and the underlying mechanisms. Resveratrol improved radiation-induced oxidative stress and cell apoptosis via upregulating antioxidant enzymes and downregulating p53 acetylation. In vivo, resveratrol-treated mice exhibited longer survival; longer villi; more intestinal crypt cells; upregulated expression of Ki67, catalase, and superoxide dismutase 2; and fewer inflammatory proteins and apoptotic cells. These protective effects were suppressed by inhibition of SIRT1. These results demonstrate that resveratrol can reduce radiation-induced intestinal injury by inhibiting oxidative stress and apoptosis via the SIRT1/FOXO3a and PI3K/AKT pathways.

Details

ISSN :
0006291X
Volume :
554
Database :
OpenAIRE
Journal :
Biochemical and Biophysical Research Communications
Accession number :
edsair.doi.dedup.....269296929723768bbfe1d2d3f2a4cb36
Full Text :
https://doi.org/10.1016/j.bbrc.2021.03.122