Amphotericin B Inhibits Enterovirus 71 Replication by Impeding Viral Entry.

Amphotericin B Inhibits Enterovirus 71 Replication by Impeding Viral Entry.
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两性霉素 B 通过阻止病毒进入来抑制肠道病毒 71 复制

DOI:
10.1038/srep33150
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发表时间:
2016-09-09
期刊:
影响因子:
4.6
通讯作者:
Guo F
Guo F
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Xu F;Zhao X;Hu S;Li J;Yin L;Mei S;Liu T;Wang Y;Ren L;Cen S;Zhao Z;Wang J;Jin Q;Liang C;Ai B;Guo F

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肠道病毒71(EV71)感染引起手足口病,导致幼儿心肺并发症和死亡。因此,迫切需要找到新的治疗方法来控制EV71感染。在这项研究中,我们报告了多烯抗生素两性霉素B对EV 71的有效抑制作用。两性霉素B显著降低RD细胞和HEK 293细胞中EV 71 RNA和病毒蛋白的表达。结果表明,两性霉素B对RD细胞和293细胞的EV 71产生抑制作用,其EC 50(50%有效浓度)分别为1.75 μM和0.32 μM。除EV71外,EV68也被两性霉素B强烈抑制。机制研究结果显示,两性霉素B通过破坏宿主细胞对EV 71的粘附和内化,靶向EV 71感染的早期阶段。作为一种有效的抗真菌药物,两性霉素B有望成为治疗EV71感染的新药物。
Enterovirus 71 (EV71) infection causes hand-foot-and-mouth disease that leads to cardiopulmonary complications and death in young children. There is thus an urgent need to find new treatments to control EV71 infection. In this study, we report potent inhibition of EV71 by a polyene antibiotic Amphotericin B. Amphotericin B profoundly diminished the expression of EV71 RNA and viral proteins in the RD cells and the HEK293 cells. As a result, EV71 production was inhibited by Amphotericin B with an EC50 (50% effective concentration) of 1.75 μM in RD cells and 0.32 μM in 293 cells. In addition to EV71, EV68 was also strongly inhibited by Amphotericin B. Results of mechanistic studies revealed that Amphotericin B targeted the early stage of EV71 infection through impairing the attachment and internalization of EV71 by host cells. As an effective anti-fungi drug, Amphotericin B thus holds the promise of formulating a novel therapeutic to treat EV71 infection.
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