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Article Publish Status: FREE
Abstract Title:

Electroacupuncture Inhibits Neuronal Autophagy and Apoptosisthe PI3K/AKT Pathway Following Ischemic Stroke.

Abstract Source:

Front Cell Neurosci. 2020 ;14:134. Epub 2020 May 15. PMID: 32477073

Abstract Author(s):

Man-Man Wang, Min Zhang, Ya-Shuo Feng, Ying Xing, Zi-Xuan Tan, Wen-Bin Li, Fang Dong, Feng Zhang

Article Affiliation:

Man-Man Wang

Abstract:

Electroacupuncture (EA) is a safe and effective therapy for ischemic stroke in both clinical and laboratory settings. However, the underlying mechanism behind EA treatment for stroke remains unclear. Here, we aimed to evaluate whether EA treatment at the acupoints of Zusanli (ST36) and Quchi (LI11) exerted a neuroprotective effect on ischemic stroke rats by modulating autophagy and apoptosisthe PI3K/AKT/mTOR signaling pathway. EA was performed at 24 h following brain ischemia/reperfusion (I/R) for 30 min per day for 3 days. Our results indicated that EA treatment significantly decreased neurological deficits and cerebral infarct volume in ischemic stroke rats. Also, EA intervention markedly reduced neuronal apoptosis by suppressing the activation of cleaved caspase-3 (CCAS3) at 72 h following I/R, as shown by a Western blot analysis. Furthermore, EA treatment after ischemic stroke suppressed the ischemia activated expression level of LC3II/I and Atg7 and increased the ischemia inhibited expression level of PI3K, phosphorylation of mTOR, phosphorylation of AKT, P62 and LAMP1, hence mediating the autophagy level of the neurocyte, which was reversed by the PI3K inhibitor Dactolisib. In summary, our results indicate that the protective effects of EA treatment at points of Quchi (LI11) and Zusanli (ST36) in rats following cerebral I/R injury was associated with the inhibition of neuronal apoptosis and autophagyactivating the PI3K/AKT/mTOR signaling pathway.

Study Type : Animal Study

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