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Published in: Metabolic Brain Disease 6/2023

13-05-2023 | Stroke | Original Article

miR-181a targets PTEN to mediate the neuronal injury caused by oxygen-glucose deprivation and reoxygenation

Authors: Shengnan Li, Peiyi Zhu, Yajun Wang, Shaoting Huang, Zhaochun Wu, Jiawen He, Xingjuan Hu, Ying Wang, Yanquan Yuan, Bin Zhao, Guoda Ma, You Li

Published in: Metabolic Brain Disease | Issue 6/2023

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Abstract

Evidence suggests that the microRNA-181 (miR-181) family performs various roles in the pathophysiology of cerebral ischemia and reperfusion injury (CIRI). MiR-181a has been identified as a critical determinant of neuronal survival. Moreover, the significance of miR-181a in controlling neuronal death after CIRI has received little attention. The objective of this study was to assess the role of miR-181a in neuronal cell injury after CIRI. To mimic the in-vitro and in-vivo CIRI, we developed an oxygen-glucose deficiency/reoxygenation (OGD/R) model in SH-SY5Y cells and a transient middle cerebral artery occlusion model in rats. MiR-181a expression was significantly higher in both in-vivo and in-vitro CIRI models. The overexpression of miR-181a increased cell damage and oxidative stress caused by OGD/R, whereas inhibition of miR-181a reduced both. PTEN has also been found to be a direct miR-181a target. PTEN overexpression reduced cell apoptosis and oxidative stress induced by miR-181a upregulation under an OGD/R condition. Furthermore, we found that the rs322931 A allele was related to increased miR-181a levels in IS peripheral blood and higher susceptibility to IS. The current results offer new insights into the understanding of the molecular pathophysiology of CIRI, as well as possible new treatment candidates.
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Metadata
Title
miR-181a targets PTEN to mediate the neuronal injury caused by oxygen-glucose deprivation and reoxygenation
Authors
Shengnan Li
Peiyi Zhu
Yajun Wang
Shaoting Huang
Zhaochun Wu
Jiawen He
Xingjuan Hu
Ying Wang
Yanquan Yuan
Bin Zhao
Guoda Ma
You Li
Publication date
13-05-2023
Publisher
Springer US
Keyword
Stroke
Published in
Metabolic Brain Disease / Issue 6/2023
Print ISSN: 0885-7490
Electronic ISSN: 1573-7365
DOI
https://doi.org/10.1007/s11011-023-01219-1

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