IL-1 and IL-23 mediate early IL-17A production in pulmonary inflammation leading to late fibrosis.

IL-1 and IL-23 mediate early IL-17A production in pulmonary inflammation leading to late fibrosis.
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IL-1和IL-23在肺部炎症中介导早期IL-17A产生,导致晚期纤维化。

DOI:
10.1371/journal.pone.0023185
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发表时间:
2011
期刊:
影响因子:
3.7
通讯作者:
Couillin I
Couillin I
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Gasse P;Riteau N;Vacher R;Michel ML;Fautrel A;di Padova F;Fick L;Charron S;Lagente V;Eberl G;Le Bert M;Quesniaux VF;Huaux F;Leite-de-Moraes M;Ryffel B;Couillin I

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特发性肺纤维化是一种毁灭性的,至今无法治愈的疾病。我们最近证实了NLRP 3炎性体活化和IL-1β表达在小鼠肺部炎症和纤维化的建立中的主要作用。使用博来霉素模型在缺陷小鼠中评估IL-23或IL-17在肺部炎症和纤维化中的贡献。我们发现博莱霉素或IL-1β诱导的肺损伤导致早期IL-23 p19和IL-17 A或IL-17 F表达增加。如基因缺陷小鼠或用中和抗体处理的小鼠所示,对BLM的炎性应答需要早期IL-23 p19和IL-17 A信号传导,但不需要IL-17 F和IL-17 RA信号传导。使用FACS分析,我们显示了在BLM施用后24小时,RORγt+ γδ T细胞的非常早期的IL-17 A和IL-17 F表达,并且CD 4 αβ+ T细胞的表达程度较低,但iNKT细胞没有。此外,IL-23 p19和IL-17 A表达或IL-17 RA信号传导对于肺TGF-β1产生、胶原沉积和向纤维化的演变是必需的。我们的研究结果表明存在导致肺部炎症和纤维化的早期IL-1β-IL-23-IL-17 A轴,并将先天性IL-23和IL-17 A鉴定为IL-1β驱动的肺部病理学的有趣药物靶标。
Idiopathic pulmonary fibrosis is a devastating as yet untreatable disease. We demonstrated recently the predominant role of the NLRP3 inflammasome activation and IL-1β expression in the establishment of pulmonary inflammation and fibrosis in mice. The contribution of IL-23 or IL-17 in pulmonary inflammation and fibrosis was assessed using the bleomycin model in deficient mice. We show that bleomycin or IL-1β-induced lung injury leads to increased expression of early IL-23p19, and IL-17A or IL-17F expression. Early IL-23p19 and IL-17A, but not IL-17F, and IL-17RA signaling are required for inflammatory response to BLM as shown with gene deficient mice or mice treated with neutralizing antibodies. Using FACS analysis, we show a very early IL-17A and IL-17F expression by RORγt+ γδ T cells and to a lesser extent by CD4αβ+ T cells, but not by iNKT cells, 24 hrs after BLM administration. Moreover, IL-23p19 and IL-17A expressions or IL-17RA signaling are necessary to pulmonary TGF-β1 production, collagen deposition and evolution to fibrosis. Our findings demonstrate the existence of an early IL-1β-IL-23-IL-17A axis leading to pulmonary inflammation and fibrosis and identify innate IL-23 and IL-17A as interesting drug targets for IL-1β driven lung pathology.
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