Title:Stachydrine Inhibits PC12 Cell Apoptosis Induced by Aβ25-35 in an in vitro Cell Model of Neurocognitive Disorders
Volume: 18
Issue: 5
Author(s): Huan Fu, Mei Liu, Jinxiu Yan, Na Zhao and Liangchao Qu*
Affiliation:
- Department of Anesthesiology, First Affiliated Hospital of Nanchang University, Nanchang 330006,China
Keywords:
Stachydrine, neurocognitive disorders, PC-12, apoptosis, Aβ25-35, in vitro, traditional chinese medicine.
Abstract:
Background: Abnormal deposition of amyloid beta (Aβ) is considered the primary
cause of neurocognitive disorders (NCDs). Inhibiting cytotoxicity is an important aspect of the
treatment of NCDs. Stachydrine (STA) has been widely used for gynecological and cardiovascular
disorders. However, whether STA has protective functions in PC12 cells treated with Aβ25-35 remains
unclear.
Introduction: Traditional Chinese Medicine, stachydrine (STA), is a water-soluble alkaloid of
Leonurus heterophyllus, which can inhibit cell apoptosis, suppress tumor growth, maintain homeostasis
of myocardial cells, and alleviate endothelial dysfunction. This study will investigate the effect
of STA on inhibiting PC12 cell apoptosis induced by Aβ25-35 in an in vitro cell model of neurocognitive
disorders.
Methods: The differentially expressed genes (DEGs) in cells treated with STA were analyzed according
to the Gene Expression Omnibus (GSE) 85871 data, and the STITCH database was used to
identify the target genes of STA. PC12 cells were treated with Aβ25-35 and/or STA, 3-(4,5-
dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay was performed and lactate
dehydrogenase (LDH) activity was determined. The cell cycle distribution was detected by flow
cytometry, and quantitative reverse transcription-polymerase chain reaction (qRT-PCR) or Western
blotting were used to detect the expression of genes or proteins.
Results: GSE85871 data showed 37 upregulated and 48 downregulated genes among the DEGs
affected by STA. The results from the STITCH database showed that RPS8 and EED were target
genes of STA. GSE1297 analysis showed the 13 most significantly upregulated genes. STA might
affect the occurrence of NCDs through the interaction of TP53 with EED and RPS8. Finally, Aβ25-35
promoted apoptosis and LDH release of PC-12 cells, arrested the cell cycle in the G2/M phase, and
inhibited the expression of the RPS8, EED, Bcl-2 and P53 genes. STA could reverse the effect of
Aβ25-35.
Conclusion: STA may play an important role in inhibiting apoptosis induced by Aβ25-35 by targeting
the RPS8 and EED genes in the NCDs model in vitro.