...
首页> 外文期刊>The Journal of Antibiotics: An International Journal >Allantopyrone A interferes with multiple components of the TNF receptor 1 complex and blocks RIP1 modifications in the TNF-alpha-induced signaling pathway
【24h】

Allantopyrone A interferes with multiple components of the TNF receptor 1 complex and blocks RIP1 modifications in the TNF-alpha-induced signaling pathway

机译:Allantopyrone A干扰TNF受体1复合物的多个组分,并阻止TNF-α诱导的信号通路中的RIP1修饰

获取原文
获取原文并翻译 | 示例
           

摘要

Allantopyrone A is a fungal metabolite that uniquely possesses two alpha,beta-unsaturated carbonyl moieties. We recently reported that allantopyrone A inhibited the nuclear factor-kappa B (NF-kappa B) signaling pathway induced by tumor necrosis factor (TNF)-alpha in human lung carcinoma A549 cells. In the present study, the mechanism by which allantopyrone A inhibits the TNF-alpha-induced signaling pathway was investigated in more detail. Allantopyrone A blocked extensive modifications to receptor-interacting protein 1 (RIP1) in the TNF receptor 1 (TNF-R1) complex. Allantopyrone A augmented the high-MW bands of TNF-R1, TNF receptor-associated factor 2, RIP1, the NF-kappa B subunit RelA and inhibitor of NF-kappa B kinase beta in A549 cells, suggesting that it binds to and promotes the crosslinking of these proteins. The extracellular cysteine-rich domains of TNF-R1 were crosslinked by allantopyrone A more preferentially than its intracellular portion. The present results demonstrate that allantopyrone A interferes with multiple components of the TNF-R1 complex and blocks RIP1 modifications in the TNF-alpha-induced NF-kappa B signaling pathway.
机译:Allantopyrone A是一种真菌代谢物,其唯一具有两个α,β-不饱和羰基部分。我们最近报道,Allantopyrone A抑制了人肺癌A549细胞中肿瘤坏死因子(TNF)-αα诱导的核因子-Kappa B(NF-Kappa B)信号传导途径。在本研究中,更详细地研究了Allantopyrone A抑制TNF-α诱导的信号传导途径的机制。 Allantopyrone在TNF受体1(TNF-R1)复合物中对受体相互作用蛋白1(RIP1)的封闭性堵塞。 Allantopyrone在A549细胞中增强了TNF-R1,TNF受体相关因子2,RIP1,NF-Kappa B亚基酶β的NF-Kappa B亚基酶β的高MW带,表明它结合并促进了这些蛋白质的交联。 TNF-R1的细胞外半胱氨酸的结构域通过比其细胞内部更优先于丙二酮的交联。本结果表明,Allantopyrone A干扰TNF-R1复合物的多个组分,并阻断TNF-α诱导的NF-Kappa B信号通路中的RIP1修饰。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号