Regulation of inflammatory responses by IL-17F.

Regulation of inflammatory responses by IL-17F.
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IL-17F对炎症反应的调节。

DOI:
10.1084/jem.20071978
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发表时间:
2008-05-12
影响因子:
15.3
通讯作者:
Dong, Chen
Dong, Chen
中科院分区:
医学1区
文献类型:
--
作者:
Yang, Xuexian O.;Chang, Seon Hee;Park, Heon;Nurieva, Roza;Shah, Bhavin;Acero, Luis;Wang, Yi-Hong;Schluns, Kimberly S.;Broaddus, Russell R.;Zhu, Zhou;Dong, Chen

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虽然白细胞介素(IL)17已被广泛表征,但IL-17 F的功能,其具有与IL-17类似的表达模式调节,知之甚少。我们表明,与IL-17一样,IL-17 F在体外调节促炎基因表达,这需要IL-17受体A、肿瘤坏死因子受体相关因子6和Act 1。在体内,IL-17 F在肺上皮中的过表达导致淋巴细胞和巨噬细胞的浸润以及粘液增生,与在IL-17转基因小鼠中进行的观察相似。为了进一步了解IL-17 F的功能,我们产生并分析了IL-17 F或IL-17缺陷的小鼠。实验性自身免疫性脑脊髓炎的发生需要IL-17,而不是IL-17 F。缺乏IL-17 F而非IL-17的小鼠在过敏原激发后具有缺陷性气道嗜中性粒细胞。此外,在哮喘模型中,虽然IL-17缺乏降低了辅助性T细胞2型反应,但IL-17 F缺乏小鼠显示出增强的2型细胞因子产生和嗜酸性粒细胞功能。此外,IL-17 F缺乏导致葡聚糖硫酸钠引起的结肠炎减少,而IL-17敲除小鼠发展出更严重的疾病。因此,我们的研究结果表明,IL-17 F是炎症反应的重要调节因子,其在免疫反应和疾病中的功能似乎与IL-17不同。
Although interleukin (IL) 17 has been extensively characterized, the function of IL-17F, which has an expression pattern regulated similarly to IL-17, is poorly understood. We show that like IL-17, IL-17F regulates proinflammatory gene expression in vitro, and this requires IL-17 receptor A, tumor necrosis factor receptor–associated factor 6, and Act1. In vivo, overexpression of IL-17F in lung epithelium led to infiltration of lymphocytes and macrophages and mucus hyperplasia, similar to observations made in IL-17 transgenic mice. To further understand the function of IL-17F, we generated and analyzed mice deficient in IL-17F or IL-17. IL-17, but not IL-17F, was required for the initiation of experimental autoimmune encephalomyelitis. Mice deficient in IL-17F, but not IL-17, had defective airway neutrophilia in response to allergen challenge. Moreover, in an asthma model, although IL-17 deficiency reduced T helper type 2 responses, IL-17F–deficient mice displayed enhanced type 2 cytokine production and eosinophil function. In addition, IL-17F deficiency resulted in reduced colitis caused by dextran sulfate sodium, whereas IL-17 knockout mice developed more severe disease. Our results thus demonstrate that IL-17F is an important regulator of inflammatory responses that seems to function differently than IL-17 in immune responses and diseases.
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