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MiR-361-3p alleviates cerebral ischemia–reperfusion injury by targeting NACC1 through the PINK1/Parkin pathway

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Abstract

Ischemic stroke is a nervous system disease with high rates of disability and mortality. MicroRNAs have been reported to modulate cerebral ischemia. The current study aimed to study the role of miR-361-3p in cerebral ischemia–reperfusion (I/R) injury. Experimental results revealed that miR-361-3p level was downregulated in a middle cerebral artery occlusion-induced ischemic stroke mouse model and in oxygen–glucose deprivation/reoxygenation-stimulated SH-SY5Y cells. After overexpressing miR-361-3p, the percentage of brain infarct volume and neurobehavioral scores in mice were significantly reduced, and the neuronal apoptosis was inhibited. Moreover, miR-361-3p overexpression could limit the production of reactive oxygen species (ROS). Furthermore, we investigated the underlying molecular mechanisms of miR-361-3p and identified that miR-361-3p combined with NACC1 3ʹUTR to negatively modulate its expression. In addition, NACC1 interacts with the PINK1/Parkin pathway in neurons. NACC1 overexpression could rescue the impacts of miR-361-3p mimics on cell apoptosis, ROS production and the PINK1/Parkin pathway. In conclusion, miR-361-3p could improve ischemia brain injury by targeting NACC1 through the PINK1/Parkin pathway. Therefore, miR-361-3p may serve as a potential therapeutic target for the brain injury after I/R.

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Acknowledgements

We appreciate all participators.

Funding

This worked was supported by National Natural Science Foundation of China (No. 81401030) and Health Commission of Hubei Province scientific research project (No. WJ2021F114, WJ2021M181).

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Correspondence to Min Huang or Hongfei Zhu.

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Ye, X., Song, H., Hu, H. et al. MiR-361-3p alleviates cerebral ischemia–reperfusion injury by targeting NACC1 through the PINK1/Parkin pathway. J Mol Histol 53, 357–367 (2022). https://doi.org/10.1007/s10735-021-10049-3

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  • DOI: https://doi.org/10.1007/s10735-021-10049-3

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