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  • Title: Effects of daphnetin on the autophagy signaling pathway of fibroblast-like synoviocytes in rats with collagen-induced arthritis (CIA) induced by TNF-α.
    Author: Deng H, Zheng M, Hu Z, Zeng X, Kuang N, Fu Y.
    Journal: Cytokine; 2020 Mar; 127():154952. PubMed ID: 31865066.
    Abstract:
    Daphnetin (DAP), an active ingredient extracted from Daphne odora, has pharmacological effects such as anti-inflammatory, antioxidation and anti-tumor properties. The current study aims to investigate the relationship between the anti-rheumatoid effect of DAP and the inhibition of both the PI3K/AKT/mTOR and autophagy signaling pathways. DAP inhibited the proliferation of CIA-FLS in a dose-dependent manner and induce apoptosis, accelerated the G1/G0 phase and inhibited the S phase. DAP reduced the phosphorylation of AKT and mTOR and the expression of Atg5, Beclin-1 and LC3-II/LC3-I in CIA-FLS induced by TNF-α. DAP also reduced the inflammatory response in CIA-FLS induced by TNF-α by inhibiting the cytokine expression of TNF-α, IL-6, TGF-β, IL-17, and INF-γ and promoting IL-10 expression. Overall, DAP inhibited the proliferation of CIA-FLS by down-regulating the PI3K/AKT/mTOR signaling pathway and inhibited autophagy in order to induces apoptosis, which may be potential therapeutic approach in treatment of RA.
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