Interferon-α-induced CD100 on naïve CD8(+) T cells enhances antiviral responses to hepatitis C infection through CD72 signal transduction.

Interferon-α-induced CD100 on naïve CD8(+) T cells enhances antiviral responses to hepatitis C infection through CD72 signal transduction.
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干扰素α诱导幼稚CD8( ) T细胞上的CD100通过CD72信号转导增强对丙型肝炎感染的抗病毒反应

DOI:
10.1177/0300060516676136
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发表时间:
2017-03
期刊:
The Journal of international medical research
影响因子:
--
通讯作者:
Jia ZS
Jia ZS
中科院分区:
其他
文献类型:
--
作者:
Li BJ;He Y;Zhang Y;Guo YH;Zhou Y;Zhang PX;Wang W;Zhao JR;Li JG;Zuo WZ;Fan C;Jia ZS

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我们研究了干扰素-α(干扰素-α)治疗后丙型肝炎病毒感染过程中CD10 0对初始CD8+T细胞的影响,以阐明干扰素-α增强抗病毒应答的机制。用流式细胞仪分析CD8+T细胞亚群上的CD100分子。用ELISAs法和四甲基偶氮唑盐细胞毒试验检测CD100过表达的初始CD8+T细胞的杀伤作用。用中和实验和Transwell实验分析CD100-CD72信号转导的作用。丙型肝炎病毒感染降低CD8+T细胞上CD10 0的表达,而干扰素-α治疗显著增加初始CD8+T细胞上CD10 0的表达。增加的CD10 0与CD72受体相互作用,促进外周血单个核细胞细胞因子的分泌(干扰素-γ和肿瘤坏死因子-α)和细胞毒作用。在丙型肝炎病毒感染过程中,干扰素-α诱导的初始CD8+T细胞上的CD100通过CD100-CD72信号通路促进PBMC细胞因子的分泌和细胞毒作用。
We investigated the effects of CD100 on naïve CD8+ T cells during hepatitis C virus (HCV) infection after interferon-α (IFN-α) therapy to clarify the mechanism underlying the effect of IFN-α in enhancing the antiviral response. The CD100 molecules on subsets of CD8+ T cells were analysed with flow cytometry. The effects of CD100-overexpressing naïve CD8+ T cells were determined with ELISAs and an MTT cytotoxicity assay. The role of CD100–CD72 signal transduction was analysed with a neutralization and transwell assays. HCV infection reduced CD100 expression on CD8+ T cells, whereas IFN-α treatment significantly increased CD100 expression on naïve CD8+ T cells. The increased CD100 interacted with the CD72 receptor and enhanced PBMC cytokine secretion (IFN-γ and tumour necrosis factor-α) and cytotoxicity. IFN-α-induced CD100 on naïve CD8+ T cells promotes PBMC cytokine secretion and cytotoxicity through CD100–CD72 signalling during HCV infection.
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