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I 型干扰素表达的时空调节决定了 CD4 T 细胞的抗病毒极化。

Spatiotemporal regulation of type I interferon expression determines the antiviral polarization of CD4 T cells.

机构信息

Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milan, Italy.

Vita-Salute San Raffaele University, Milan, Italy.

出版信息

Nat Immunol. 2020 Mar;21(3):321-330. doi: 10.1038/s41590-020-0596-6. Epub 2020 Feb 17.

DOI:10.1038/s41590-020-0596-6
PMID:32066949
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7043938/
Abstract

Differentiation of CD4 T cells into either follicular helper T (T) or type 1 helper T (T1) cells influences the balance between humoral and cellular adaptive immunity, but the mechanisms whereby pathogens elicit distinct effector cells are incompletely understood. Here we analyzed the spatiotemporal dynamics of CD4 T cells during infection with recombinant vesicular stomatitis virus (VSV), which induces early, potent neutralizing antibodies, or recombinant lymphocytic choriomeningitis virus (LCMV), which induces a vigorous cellular response but inefficient neutralizing antibodies, expressing the same T cell epitope. Early exposure of dendritic cells to type I interferon (IFN), which occurred during infection with VSV, induced production of the cytokine IL-6 and drove T cell polarization, whereas late exposure to type I IFN, which occurred during infection with LCMV, did not induce IL-6 and allowed differentiation into T1 cells. Thus, tight spatiotemporal regulation of type I IFN shapes antiviral CD4 T cell differentiation and might instruct vaccine design strategies.

摘要

CD4 T 细胞向滤泡辅助 T(Tfh)或 1 型辅助 T(T1)细胞的分化影响体液和细胞适应性免疫之间的平衡,但病原体引发不同效应细胞的机制尚不完全清楚。在这里,我们分析了感染重组单纯疱疹病毒(VSV)时 CD4 T 细胞的时空动力学,VSV 诱导早期、强效的中和抗体,或重组淋巴细胞脉络丛脑膜炎病毒(LCMV),诱导强烈的细胞反应但中和抗体效率低下,表达相同的 T 细胞表位。树突状细胞早期暴露于 I 型干扰素(IFN),这发生在 VSV 感染期间,诱导细胞因子 IL-6 的产生并驱动 T 细胞极化,而晚期暴露于 I 型 IFN,这发生在 LCMV 感染期间,不会诱导 IL-6 并允许分化为 T1 细胞。因此,I 型 IFN 的严格时空调节塑造了抗病毒 CD4 T 细胞分化,并可能指导疫苗设计策略。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/43b7/7043938/c26b618e43b5/EMS85430-f005.jpg
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