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肿瘤坏死因子α对体外汉坦病毒感染的影响。

Effects of tumor necrosis factor alpha on sin nombre virus infection in vitro.

作者信息

Khaiboullina S F, Netski D M, Krumpe P, St Jeor S C

机构信息

Department of Microbiology and Cell and Molecular Biology Program, School of Medicine, University of Nevada-Reno, Reno, Nevada 89557, USA.

出版信息

J Virol. 2000 Dec;74(24):11966-71. doi: 10.1128/jvi.74.24.11966-11971.2000.

Abstract

Previous data indicate that immune mechanisms may be involved in developing capillary leakage during Sin Nombre virus (SNV) infection. Therefore, we investigated production of tumor necrosis factor alpha (TNF-alpha) by human alveolar macrophages and human umbilical vein endothelial cells (HUVEC) after infection with SNV. In addition, we examined the effect of TNF-alpha on HUVEC monolayer leakage. Our results reveal that although TNF-alpha decreases accumulation of viral nucleoproteins, TNF-alpha levels do not change in SNV-infected cells. In addition, supernatants from SNV-infected human alveolar macrophages did not cause a significant increase in endothelial monolayer permeability.

摘要

先前的数据表明,免疫机制可能参与了汉坦病毒(SNV)感染期间毛细血管渗漏的发生。因此,我们研究了人肺泡巨噬细胞和人脐静脉内皮细胞(HUVEC)在感染SNV后肿瘤坏死因子α(TNF-α)的产生情况。此外,我们还检测了TNF-α对HUVEC单层渗漏的影响。我们的结果显示,虽然TNF-α可减少病毒核蛋白的积累,但在感染SNV的细胞中TNF-α水平并未改变。此外,感染SNV的人肺泡巨噬细胞的上清液并未导致内皮单层通透性显著增加。

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