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首页> 外文期刊>Viruses >Herpes Simplex Virus Type 1–Encoded miR-H2-3p Manipulates Cytosolic DNA–Stimulated Antiviral Innate Immune Response by Targeting DDX41
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Herpes Simplex Virus Type 1–Encoded miR-H2-3p Manipulates Cytosolic DNA–Stimulated Antiviral Innate Immune Response by Targeting DDX41

机译:1型单纯疱疹病毒编码的miR-H2-3p通过靶向DDX41操纵胞质DNA刺激的抗病毒先天免疫反应。

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Herpes simplex virus type 1 (HSV-1), one of the human pathogens widely epidemic and transmitted among various groups of people in the world, often causes symptoms known as oral herpes or lifelong asymptomatic infection. HSV-1 employs many sophisticated strategies to escape host antiviral immune response based on its multiple coding proteins. However, the functions involved in the immune evasion of miRNAs encoded by HSV-1 during lytic (productive) infection remain poorly studied. Dual-luciferase reporter gene assay and bioinformatics revealed that Asp-Glu-Ala-Asp (DEAD)-box helicase 41 (DDX41), a cytosolic DNA sensor of the DNA-sensing pathway, was a putative direct target gene of HSV-1-encoded miR-H2-3p. The transfection of miR-H2-3p mimics inhibited the expression of DDX41 at the level of mRNA and protein, as well as the expression of interferon beta (IFN-β) and myxoma resistance protein I (MxI) induced by HSV-1 infection in THP-1 cells, and promoted the viral replication and its gene transcription. However, the transfection of miR-H2-3p inhibitor showed opposite effects. This finding indicated that HSV-1-encoded miR-H2-3p attenuated cytosolic DNA–stimulated antiviral immune response by manipulating host DNA sensor molecular DDX41 to enhance virus replication in cultured cells.
机译:1型单纯疱疹病毒(HSV-1)是广泛传播并在世界各地不同人群之间传播的人类病原体之一,通常会引起称为口腔疱疹或终身无症状感染的症状。 HSV-1基于其多种编码蛋白,采用了许多复杂的策略来逃避宿主抗病毒免疫应答。然而,在溶血性(生产性)感染过程中,HSV-1编码的miRNA的免疫逃逸所涉及的功能仍然研究不足。双荧光素酶报告基因基因检测和生物信息学研究表明,Asp-Glu-Ala-Asp(DEAD)盒解旋酶41(DDX41)是DNA传感途径的胞质DNA传感器,是HSV-1-的假定直接靶基因。编码的miR-H2-3p。转染miR-H2-3p模拟物可抑制DDX41在mRNA和蛋白水平上的表达,以及HSV-1感染诱导的干扰素β(IFN-β)和粘液抵抗蛋白I(MxI)的表达。 THP-1细胞,并促进了病毒复制及其基因转录。但是,miR-H2-3p抑制剂的转染显示相反的作用。这一发现表明,HSV-1编码的miR-H2-3p通过操纵宿主DNA传感器分子DDX41来增强在培养细胞中的病毒复制,从而减弱了胞质DNA刺激的抗病毒免疫应答。

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