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3型副流感病毒对颗粒酶B的特异性抑制作用

Specific inhibition of granzyme B by parainfluenza virus type 3.

作者信息

Sieg S, Xia L, Huang Y, Kaplan D

机构信息

Department of Pathology, Case Western Reserve University, Cleveland, Ohio 44106-4943, USA.

出版信息

J Virol. 1995 Jun;69(6):3538-41. doi: 10.1128/JVI.69.6.3538-3541.1995.

Abstract

T-cell-mediated cytotoxicity is an important means of defense against viral pathogens; however, several viruses possess mechanisms to disrupt cytotoxicity, thereby allowing them to avoid immune clearance. These viruses have been shown to inhibit cytotoxicity by interfering with the capacity of T lymphocytes to specifically recognize infected cells. An alternative mechanism for virally induced cytotoxic dysfunction is identified in this report. We show that parainfluenza virus type 3, a negative-stranded RNA virus, can inhibit cytotoxicity by causing a defect in the cytotoxic effector apparatus. This defect is identified as a selective inhibition of granzyme B mRNA.

摘要

T细胞介导的细胞毒性是抵御病毒病原体的重要防御手段;然而,几种病毒拥有破坏细胞毒性的机制,从而使其能够避免免疫清除。这些病毒已被证明可通过干扰T淋巴细胞特异性识别受感染细胞的能力来抑制细胞毒性。本报告中确定了病毒诱导的细胞毒性功能障碍的另一种机制。我们发现,负链RNA病毒3型副流感病毒可通过导致细胞毒性效应器装置缺陷来抑制细胞毒性。这种缺陷被确定为颗粒酶B mRNA的选择性抑制。

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