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Interleukin-28A enhances autoimmune disease in a retinal autoimmunity model

机译:白介素28A在视网膜自身免疫模型中增强自身免疫性疾病

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Interleukin-28A (IL-28A), a member of type III interferons (IFN-λs), promotes antiviral, antitumor and immune responses. However, its ability to regulate autoimmune diseases is poorly understood. In this study, we examined the effect of IL-28A on retinal antigen-induced experimental autoimmune uveoretinitis (EAU), a mouse model of human T-cell-mediated autoimmune eye disease. We found that administration of IL-28A enhanced EAU scores and autoimmune response parameters including delayed-type hypersensitivity (DTH), Ag-specific T cell proliferation and the production of Ag-specific IL-17 and IFN-γ in the priming phase. The effect of IL-28A was abrogated by administration of a neutralizing antibody against IL-28A. Our results suggest that IL-28A is capable of exacerbating a T-cell-mediated autoimmune disease. Thus, targeting IL-28A may provide a new therapeutic approach to T cell-mediated autoimmune diseases such as uveitis.
机译:白细胞介素28A(IL-28A)是III型干扰素(IFN-λs)的成员,可促进抗病毒,抗肿瘤和免疫反应。但是,其调节自身免疫性疾病的能力知之甚少。在这项研究中,我们检查了IL-28A对视网膜抗原诱导的实验性自身免疫性葡萄膜视网膜炎(EAU)的作用,EAU是人类T细胞介导的自身免疫性眼病的小鼠模型。我们发现IL-28A的管理增强了EAU评分和自身免疫应答参数,包括延迟型超敏反应(DTH),Ag特异性T细胞增殖以及在启动阶段产生Ag特异性IL-17和IFN-γ。通过给予针对IL-28A的中和抗体来消除IL-28A的作用。我们的结果表明,IL-28A能够加剧T细胞介导的自身免疫性疾病。因此,靶向IL-28A可能为T细胞介导的自身免疫性疾病(如葡萄膜炎)提供一种新的治疗方法。

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