Paeoniflorin Antagonizes TNF-α-Induced L929 Fibroblastoma Cells Apoptosis by Inhibiting NF-κBp65 Activation.

Paeoniflorin Antagonizes TNF-α-Induced L929 Fibroblastoma Cells Apoptosis by Inhibiting NF-κBp65 Activation.
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芍药苷通过抑制 NF-κ Bp65 激活拮抗 TNF-α 诱导的 L929 成纤维细胞瘤细胞凋亡

DOI:
10.1177/1559325818774977
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发表时间:
2018-04
期刊:
Dose-response : a publication of International Hormesis Society
影响因子:
--
通讯作者:
Ding X
Ding X
中科院分区:
其他
文献类型:
--
作者:
Lai X;Wei J;Ding X

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芍药苷(PF)是中药牡丹皮的主要药效成分之一,对类风湿性关节炎(RA)具有显著的抗炎作用,其作用机制与肿瘤坏死因子α(TNF-α)有关。本研究旨在探讨PF在TNF-α诱导L929成纤维细胞瘤细胞凋亡及NF-κ Bp 65表达中的作用。结果表明,不同浓度的PF均能显著降低L929细胞的生长抑制作用。形态学观察、Hoechst 33342染色和流式细胞术检测细胞凋亡结果显示,PF能显著抑制TNF-α诱导的细胞凋亡,且呈剂量依赖性。Western blot分析显示TNF-α可诱导NF-κ Bp 65的活化,PF对NF-κ Bp 65的抑制作用呈剂量依赖性,提示PF的作用可能与抑制NF-κB信号通路有关。这些结果表明PF对L929细胞具有有益的作用,可以阻止TNF-α诱导的细胞凋亡和NF-κ Bp 65的表达,这将有助于阐明其在RA治疗中的作用。
Paeoniflorin (PF) is one of the main pharmacodynamic components of Paeonia suffruticosa Andr, which has a significant anti-inflammatory effect on rheumatoid arthritis (RA), with a mechanism related to the tumor necrosis factor α (TNF-α). The aim of the present study was to investigate the role of PF in the apoptosis and expression of NF-κBp65 of L929 fibroblastoma cells induced by TNF-α. Our results showed that different concentrations of PF can significantly reduce the growth inhibition of L929 cells. Moreover, morphological observations, Hoechst 33342 staining, and flow cytometry detection of apoptosis showed that PF can significantly attenuate the TNF-α-induced apoptosis in a dose-dependent manner. Western blot analysis revealed that TNF-α induced the activation of NF-κBp65, whereas PF treatment had a marked dose-dependent suppression on it, which indicates that its action might be associated with inhibiting NF-κB signaling pathway. These results show that PF exerts a beneficial effect on L929 cells to prevent TNF-α-induced apoptosis and expression of NF-κBp65, which would be helpful to clarify its role in the treatment of RA.
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