A drug screening method based on the autophagy pathway and studies of the mechanism of evodiamine against influenza A virus.

A drug screening method based on the autophagy pathway and studies of the mechanism of evodiamine against influenza A virus.
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基于自噬途径的药物筛选方法及吴茱萸碱抗甲型流感病毒的作用机制研究

DOI:
10.1371/journal.pone.0042706
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发表时间:
2012
期刊:
影响因子:
3.7
通讯作者:
Li KS
Li KS
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Dai JP;Li WZ;Zhao XF;Wang GF;Yang JC;Zhang L;Chen XX;Xu YX;Li KS

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本研究建立了基于自噬信号通路的药物筛选方法,利用双分子荧光互补-荧光共振能量转移(BiFC-FRET)技术开发新型抗甲型流感病毒(IAV)药物。我们从83例中药中筛选出吴茱萸,探讨其主要活性成分吴茱萸碱抗IAV活性的机制。我们的结果表明,吴茱萸碱可以显着抑制 IAV 复制,通过噬菌斑抑制测定、IAV vRNA 启动子荧光素酶报告基因测定和使用细胞病变效应 (CPE) 减少的磺胺罗丹明 B 方法测定。此外,吴茱萸碱还能显着抑制LC3-II和p62的积累,以及EGFP-LC3的点状聚集。该化合物还抑制 IAV 感染后 Atg5-Atg12/Atg16 异源三聚体的形成、Atg5、Atg7 和 Atg12 的表达以及 TNF-α、IL-1β、IL-6 和 IL-8 的细胞因子释放。吴茱萸碱抑制 IAV 诱导的自噬还依赖于其对 AMPK/TSC2/mTOR 信号通路的作用。总之,我们建立了一种新的药物筛选方法,并选择吴茱萸碱作为一种有前途的抗IAV化合物。
In this research, we have established a drug screening method based on the autophagy signal pathway using the bimolecular fluorescence complementation - fluorescence resonance energy transfer (BiFC-FRET) technique to develop novel anti-influenza A virus (IAV) drugs. We selected Evodia rutaecarpa Benth out of 83 examples of traditional Chinese medicine and explored the mechanisms of evodiamine, the major active component of Evodia rutaecarpa Benth, on anti-IAV activity. Our results showed that evodiamine could significantly inhibit IAV replication, as determined by a plaque inhibition assay, an IAV vRNA promoter luciferase reporter assay and the Sulforhodamine B method using cytopathic effect (CPE) reduction. Additionally, evodiamine could significantly inhibit the accumulation of LC3-II and p62, and the dot-like aggregation of EGFP-LC3. This compound also inhibited the formation of the Atg5-Atg12/Atg16 heterotrimer, the expressions of Atg5, Atg7 and Atg12, and the cytokine release of TNF-α, IL-1β, IL-6 and IL-8 after IAV infection. Evodiamine inhibited IAV-induced autophagy was also dependent on its action on the AMPK/TSC2/mTOR signal pathway. In conclusion, we have established a new drug screening method, and selected evodiamine as a promising anti-IAV compound.
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DOI: 10.1016/0014-5793(94)01369-c
发表时间: 1995-01-09
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作者:
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