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  • Title: Tetrahydroxy stilbene glycoside regulates TGF-β/fractalkine/CX3CR1 based on network pharmacology in APP/PS1 mouse model.
    Author: Gao Y, Hu K, Yang J, Wang S, Li J, Wu Q, Wang Z, Chen N, Li L, Zhang L.
    Journal: Neuropeptides; 2021 Dec; 90():102197. PubMed ID: 34509715.
    Abstract:
    Alzheimer's disease (AD) is a serious, progressive neurodegenerative disease that involves irreversible neuronal death. Tetrahydroxy stilbene glycoside (TSG) is an active compound extracted from P. multiflorum, a traditional Chinese herbal medicine, but its role in neuroprotection is unclear. Herein, we aimed to validate the effects of TSG on APP/PS1 model mice and the underlying mechanism. RNA-seq was performed to identify differentially expressed genes in APP/PS1 mouse, with PCR and immunohistochemistry used for validation. Experiments were performed after bioinformatic analysis for verification. Neuronal damage was observed by H&E staining. Key proteins involved in the pathway such as CX3CR1, Iba1 and TGF-β were examined by immunohistochemical analysis. The KEGG analysis suggested that these genes might act by multiple pathways to build the pharmacological network of TSG in AD progression. These data provide the credible evidence that TSG improved neuronal damage and regulated neuroprotective mechanisms. Together, our work has detailed the whole and major genes in APP/PS1 model mouse regulated by TSG, and highlighted the anti-inflammatory function of TSG in mediating CX3CR1 and TGF-β as the TGF-β/fractalkine/CX3XR1 signaling pathway, especially in microglia. Moreover, TSG has potential value in synaptic transmission and neurotrophic action on neurodegenerative diseases. In summary, TSG is a promising candidate for preventing and treating the progression of AD.
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