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The role of interleukin-22 in hepatitis C virus infection.

机译:白介素22在丙型肝炎病毒感染中的作用。

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摘要

In this study, we analyzed if IL-22 displays, similar to other IL-10 like cytokines such as IL-28A, antiviral properties in hepatic cells. Using RT-PCR and immunoblotting, we demonstrated that hepatic cell lines and primary hepatocytes express the functional IL-22 receptor complex consisting of IL-22R1 and IL-10R2. Hepatic IL-22 mRNA expression as measured by quantitative PCR was up-regulated in autoimmune and viral hepatitis compared to cholestatic liver diseases, while IL-22 serum levels did not differ significantly between patients with viral hepatitis and normal controls. IL-22 did not significantly change the expression levels of IFN-alpha/-beta and of the antiviral proteins MxA and 2',5'-OAS. Consequently, it had in comparison to IFN-alpha no relevant antiviral activity in in vitro models of HCV replication and infection. Taken together, hepatic IL-22 expression is up-regulated in viral hepatitis but IL-22 does not directly regulate antiviral proteins and has, in contrast to IFN-alpha, no effect on HCV replication.
机译:在这项研究中,我们分析了IL-22是否在肝细胞中显示出与其他IL-10类似的细胞因子(例如IL-28A)相似的抗病毒特性。使用RT-PCR和免疫印迹,我们证明了肝细胞系和原代肝细胞表达由IL-22R1和IL-10R2组成的功能性IL-22受体复合物。与胆汁淤积性肝病相比,通过定量PCR测定的肝IL-22 mRNA表达在自身免疫性和病毒性肝炎中被上调,而病毒性肝炎患者与正常对照组的IL-22血清水平没有显着差异。 IL-22没有显着改变IFN-α/-β和抗病毒蛋白MxA和2',5'-OAS的表达水平。因此,与IFN-α相比,它在HCV复制和感染的体外模型中没有相关的抗病毒活性。两者合计,肝IL-22表达在病毒性肝炎中上调,但IL-22不直接调节抗病毒蛋白,并且与IFN-α相比,对HCV复制没有影响。

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