NF-κB Activation in Airways Modulates Allergic Inflammation but Not Hyperresponsiveness1

NF-κB Activation in Airways Modulates Allergic Inflammation but Not Hyperresponsiveness1
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气道中的 NF-κB 激活可调节过敏性炎症,但不会调节高反应性1

DOI:
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发表时间:
2004
影响因子:
4.4
通讯作者:
Y. Janssen
Y. Janssen
中科院分区:
医学2区
文献类型:
--
作者:
M. Poynter;R. Cloots;Tiest van Woerkom;K. Butnor;P. Vacek;D. Taatjes;C. Irvin;Y. Janssen

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气道表现出强大的NF-κB激活,是抗炎哮喘治疗的靶点,但NF-κB激活在气道上皮中的功能重要性仍然是谜。因此,我们构建了气道特异性抑制NF-κB激活的转基因小鼠(cc10 - i -κB α sr小鼠)。吸入Ag后,转基因小鼠表现出明显的炎症改善,趋化因子、T细胞因子、粘液细胞化生和循环IgE水平降低。尽管有这些发现,在cc10 - i - κ b α sr小鼠中,ag驱动的气道高反应性并未减弱。这项研究清楚地表明,气道上皮NF-κB激活协调了ag诱导的炎症和随后的适应性免疫反应,但不会导致气道高反应性,而高反应性是哮喘的基本特征。
Airways display robust NF-κB activation and represent targets for anti-inflammatory asthma therapies, but the functional importance of NF-κB activation in airway epithelium remains enigmatic. Therefore, transgenic mice were created in which NF-κB activation is repressed specifically in airways (CC10-IκBαSR mice). In response to inhaled Ag, transgenic mice demonstrated significantly ameliorated inflammation, reduced levels of chemokines, T cell cytokines, mucus cell metaplasia, and circulating IgE compared with littermate controls. Despite these findings, Ag-driven airways hyperresponsiveness was not attenuated in CC10-IκBαSR mice. This study clearly demonstrates that airway epithelial NF-κB activation orchestrates Ag-induced inflammation and subsequent adaptive immune responses, but does not contribute to airways hyperresponsiveness, the cardinal feature that underlies asthma.
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发表时间: 1998-01-16
期刊: SCIENCE
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