2. Academic Validation
  3. Astragaloside IV protects brain cells from ischemia-reperfusion injury by inhibiting ryanodine receptor expression and reducing the expression of P-Src and P-GRK2

Astragaloside IV protects brain cells from ischemia-reperfusion injury by inhibiting ryanodine receptor expression and reducing the expression of P-Src and P-GRK2

  • Sci Rep. 2024 Jul 30;14(1):17497. doi: 10.1038/s41598-024-68462-z.
Juan Chen # 1 2,  Jun Bao # 1,  Xiujuan Jiang 1,  Wentao Yu 1,  Yunpeng Han 1,  Xia Zhang 1,  Ying Zhang 3 4,  Guoxing Deng 5
Affiliations

Affiliations

  • 1 College of Basic Medicine, Hebei University of Chinese Medicine, No.3 Xingyuan Road, Shijiazhuang, 050200, Hebei, China.
  • 2 Shenzhen Hospital of Guangzhou University of Chinese Medicine, Shenzhen, 518034, Guangdong, China.
  • 3 College of Nursing, Hebei University of Chinese Medicine, No.3 Xingyuan Road, Shijiazhuang, 050200, Hebei, China. yingzhang@hebcm.edu.cn.
  • 4 Hebei Key Laboratory of Health Care with Traditional Chinese Medicine, Shijiazhuang, 050200, Hebei, China. yingzhang@hebcm.edu.cn.
  • 5 College of Basic Medicine, Hebei University of Chinese Medicine, No.3 Xingyuan Road, Shijiazhuang, 050200, Hebei, China. dengguoxing@hebcm.edu.cn.
  • # Contributed equally.
PMID: 39080440 DOI: 10.1038/s41598-024-68462-z
Abstract

Astragaloside IV, a prime active component of Astragalus membranaceus, has potential as a neuroprotectant. We aimed to identify the active ingredients in A. membranaceus and assess if Astragaloside IV can improve cerebral ischemia-reperfusion injury (CIRI) cell Apoptosis by reducing P-Src and P-GRK2 via ryanodine receptor (RyR) expression inhibition. We used bioinformatics analysis to examine the effects of A. membranaceus on ischemic stroke. We studied brain samples from middle cerebral artery occlusion (MCAO) mice treated with normal saline, Astragaloside IV, and sham mice for pathology and Western blot tests. We also tested PC12 cells in vitro with or without Astragaloside IV or GSK180736A using Western blotting and fluorescence assays. Our bioinformatics analysis suggested a possible association between A. membranaceus, calcium ion pathways, and Apoptosis pathways. Western blot data indicated Astragaloside IV significantly decreased RyR, p-Src, and downstream phosphorylated GRK2, PLC, CaMKII, and IP3R levels in MCAO mice brains. Astragaloside IV also considerably inhibited pro-apoptotic and oxidative stress-associated proteins' expression while boosting anti-apoptotic protein expression. The results suggest Astragaloside IV can inhibit RyR expression, subsequently reducing brain cell Apoptosis.

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