High antiviral activity of mercaptoethane sulfonate functionalized Te/BSA nanostars against arterivirus and coronavirus.

High antiviral activity of mercaptoethane sulfonate functionalized Te/BSA nanostars against arterivirus and coronavirus.
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巯基乙磺酸功能化 Te/BSA 纳米星对动脉病毒和冠状病毒具有高抗病毒活性

DOI:
10.1039/d0ra01387k
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发表时间:
2020-04-06
期刊:
影响因子:
3.9
通讯作者:
--
中科院分区:
化学3区
文献类型:
--
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硫酸乙酰肝素(HS)是一种细胞粘附受体,介导病毒感染的粘附和内化。本文以巯基乙磺酸盐(MES)为表面修饰剂,模拟细胞表面受体,合成了具有独特三角形星星形状的牛血清白蛋白(BSA)包覆碲纳米粒子(Te/BSA nanostars)。使用猪繁殖与呼吸综合征病毒(PRRSV),利用HS作为细胞受体,作为动脉炎病毒的模型,我们发现Te/BSA纳米星抑制病毒感染主要是通过抑制病毒的内化过程。有趣的是,Te/BSA纳米星比球形Te/BSA纳米球(Te/BSA nanospheres)具有更高的抗病毒活性,用GSH作为MES的替代物合成了Te/BSA纳米球,这表明MES修饰和Te/BSA纳米球的新形状都增强了其抗病毒活性。最后,研究了Te/BSA纳米星对猪流行性腹泻病毒(PEDV)的抗病毒作用,表明Te/BSA纳米星具有潜在的广谱抗病毒特性。
Heparan sulfate (HS) is a kind of cellular adhesion receptor that mediates the attachment and internalization of virus infection. Herein, to mimic the cell surface receptor, mercaptoethane sulfonate (MES), an analogue of HS, was used as the surface modifier to synthesize bovine serum albumin (BSA)-coated tellurium nanoparticles (Te/BSA NPs) with a unique triangular star shape (Te/BSA nanostars). Using porcine reproductive and respiratory syndrome virus (PRRSV), which utilizes HS as a cellular receptor, as a model of arterivirus, we found that Te/BSA nanostars suppressed virus infection mainly by inhibiting the virus internalization process. Interestingly, Te/BSA nanostars exhibited much higher antiviral activity than the spherical Te/BSA NPs (Te/BSA nanospheres), the Te/BSA NPs were synthesized with GSH as a substitute of MES, suggesting that both MES modification and the novel shapes of Te/BSA NPs enhance their antiviral activity. Finally, the antiviral effect of Te/BSA nanostars on porcine epidemic diarrhea virus (PEDV), a model of coronavirus, was also demonstrated, indicating the potential broad-spectrum antiviral property of Te/BSA nanostars.
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