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首页> 外文期刊>Cytokine >Molecular characterization of the type I IFN receptor in two woodchuck species and detection of its expression in liver samples from woodchucks infected with woodchuck hepatitis virus (WHV)
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Molecular characterization of the type I IFN receptor in two woodchuck species and detection of its expression in liver samples from woodchucks infected with woodchuck hepatitis virus (WHV)

机译:两种土拨鼠中I型干扰素受体的分子特征及其在被土拨鼠肝炎病毒(WHV)感染的土拨鼠肝脏样品中的表达检测

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摘要

Type I interferons (IFN-α/β) serve as the first line of defense against viral infection and share the same type I IFN receptor (IFNAR) complex, which is composed of IFNAR1 and -2. The Eastern woodchuck (Marmota monax) and Chinese woodchuck (Marmota himalayana) are suitable for studying hepatitis B virus (HBV) infection. Here, the complete or partial sequences of the IFNARs of both species were obtained and analyzed. Small interference RNAs targeting wIFNAR1 and -2 specifically down-regulated the expression of wIFNAR1 and -2 and the IFN-stimulated gene MxA in a woodchuck cell line, respectively. IFNAR2 was significantly up-regulated in primary woodchuck hepatocytes stimulated with IFN-α or -γ. The expression of woodchuck IFNAR1 and -2 was decreased in woodchucks chronically infected with woodchuck hepatitis virus (WHV). These results are essential for studying type I IFN-related innate immunity and therapy in hepadnaviral infection in the woodchuck model.
机译:I型干扰素(IFN-α/β)是抵抗病毒感染的第一道防线,并具有相同的I型IFN受体(IFNAR)复合物,该复合物由IFNAR1和-2组成。东方土拨鼠(Marmota monax)和中国土拨鼠(Marmota himalayana)适合研究乙型肝炎病毒(HBV)感染。在此,获得并分析了两种物种的IFNAR的全部或部分序列。靶向wIFNAR1和-2的小干扰RNA分别下调了土拨鼠细胞系中wIFNAR1和-2的表达以及IFN刺激的基因MxA的表达。 IFNAR2在被IFN-α或-γ刺激的原土土拨鼠肝细胞中显着上调。慢性感染了土拨鼠肝炎病毒(WHV)的土拨鼠中土拨鼠IFNAR1和-2的表达降低。这些结果对于在土拨鼠模型中研究I型IFN相关的先天免疫和肝炎病毒感染的治疗至关重要。

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