Divergent antiviral effects of bioflavonoids on the hepatitis C virus life cycle.

Divergent antiviral effects of bioflavonoids on the hepatitis C virus life cycle.
复制标题

DOI:
10.1016/j.virol.2012.08.029
复制
发表时间:
2012-11-25
期刊:
影响因子:
3.7
通讯作者:
French SW
French SW
中科院分区:
医学3区
文献类型:
--
作者:
Khachatoorian R;Arumugaswami V;Raychaudhuri S;Yeh GK;Maloney EM;Wang J;Dasgupta A;French SW

文献摘要

参考文献

被引文献

相似文献

我们之前已经证明,槲皮素(一种生物类黄酮)通过抑制 NS5A 驱动的内部核糖体进入位点 (IRES) 介导的病毒基因组翻译来阻止丙型肝炎病毒 (HCV) 增殖。在这里,我们研究了槲皮素和六种其他生物类黄酮的抗病毒活性机制。我们证明儿茶素、柚皮素和槲皮素具有显着的抗病毒活性,且没有相关的细胞毒性。这些生物类黄酮并未显着改变感染性病毒粒子的分泌。与槲皮素相比,儿茶素和柚皮素对感染性病毒粒子组装具有更强的抑制作用。槲皮素显着阻断病毒翻译,而儿茶素和柚皮素表现出轻微的活性。同样,在 IRES 报告基因检测中,槲皮素完全阻断了 NS5A 增强的 IRES 介导的翻译,而儿茶素和柚皮素仅具有轻微的作用。此外,与儿茶素和柚皮素相比,槲皮素对 HSP70 诱导的抑制存在差异。因此,这些生物类黄酮的抗病毒活性是通过不同的机制介导的。因此,这些生物类黄酮的组合可能对 HCV 具有协同作用。
We have previously demonstrated that quercetin, a bioflavonoid, blocks hepatitis C virus (HCV) proliferation by inhibiting NS5A-driven internal ribosomal entry site (IRES)-mediated translation of the viral genome. Here, we investigate the mechanisms of antiviral activity of quercetin and six additional bioflavonoids. We demonstrate that catechin, naringenin, and quercetin possess significant antiviral activity, with no associated cytotoxicity. Infectious virion secretion was not significantly altered by these bioflavonoids. Catechin and naringenin demonstrated stronger inhibition of infectious virion assembly compared to quercetin. Quercetin markedly blocked viral translation whereas catechin and naringenin demonstrated mild activity. Similarly quercetin completely blocked NS5A-augmented IRES-mediated translation in an IRES reporter assay, whereas catechin and naringenin had only a mild effect. Moreover, quercetin differentially inhibited HSP70 induction compared to catechin and naringenin. Thus, the antiviral activity of these bioflavonoids is mediated through different mechanisms. Therefore combination of these bioflavonoids may act synergistically against HCV.
DOI: 10.1053/jhep.2002.36795
发表时间: 2002-11-01
期刊: HEPATOLOGY
影响因子: 13.5
作者:
McHutchison, JG;Patel, K
通讯作者: Patel, K
DOI: 10.1042/bj3000201
发表时间: 1994-05-15
影响因子: 4.1
作者:
ELIA, G;SANTORO, MG
通讯作者: SANTORO, MG
DOI: 10.1371/journal.ppat.1000182
发表时间: 2008-10
期刊: PLoS pathogens
影响因子: 6.7
作者:
Arumugaswami V;Remenyi R;Kanagavel V;Sue EY;Ngoc Ho T;Liu C;Fontanes V;Dasgupta A;Sun R
通讯作者: Sun R
DOI: 10.1099/vir.0.18658-0
发表时间: 2003-03-01
影响因子: 3.8
作者:
He, YP;Yan, W;Katze, MG
通讯作者: Katze, MG
DOI: 10.1155/2010/458927
发表时间: 2010
影响因子: --
作者:
Pacheco A;Martinez-Salas E
通讯作者: Martinez-Salas E