首页> 外文期刊>American Journal of Physiology >CCSP modulates airway dysfunction and host responses in an Ova-challenged mouse model.
【24h】

CCSP modulates airway dysfunction and host responses in an Ova-challenged mouse model.

机译:CCSP可在Ova攻击的小鼠模型中调节气道功能障碍和宿主反应。

获取原文
获取原文并翻译 | 示例
           

摘要

Clara cell secretory protein (CCSP) is synthesized by nonciliated bronchiolar cells in the lung and modulates lung inflammation to infection. To determine the role of CCSP in the host response to allergic airway disease, CCSP-deficient [(-/-)] mice were immunized twice with ovalbumin (Ova) and challenged by Ova (2 or 5 mg/m(3)) aerosol. After 2, 3, and 5 days of Ova aerosol challenge (6 h/day), airway reactivity was increased in CCSP(-/-) mice compared with wild-type [CCSP(+/+)] mice. Neutrophils were markedly increased in the bronchoalveolar lavage fluid of CCSP(-/-) Ova mice, coinciding with increased myeloperoxidase activity and macrophage inflammatory protein-2 levels. Lung histopathology and inflammation were increased in CCSP(-/-) compared with wild-type mice after Ova challenge. Mucus production, as assessed by histological staining, was increased in the airway epithelium of CCSP(-/-) Ova mice compared with that in CCSP(+/+) Ova mice. These data suggest a role for CCSP in airway reactivity and the host response to allergic airway inflammation and provide further evidence for the role of the airway epithelium in regulating airway responses in allergic disease.
机译:克拉拉细胞分泌蛋白(CCSP)由肺中非纤毛的细支气管细胞合成,并调节肺部炎症以致感染。为了确定CCSP在过敏性气道疾病宿主应答中的作用,将CCSP缺陷型[(-/-)]小鼠用卵清蛋白(Ova)免疫两次,然后用Ova(2或5 mg / m(3))气溶胶激发。与野生型[CCSP(+ / +)]小鼠相比,在Ova气雾剂激发后第2、3和5天(6小时/天),CCSP(-/-)小鼠的气道反应性增加。 CCSP(-/-)Ova小鼠的支气管肺泡灌洗液中的中性粒细胞显着增加,这与髓过氧化物酶活性和巨噬细胞炎性蛋白2水平的升高相吻合。 Ova攻击后与野生型小鼠相比,CCSP(-/-)的肺组织病理学和炎症增加。通过组织学染色评估,与CCSP(+ / +)Ova小鼠相比,CCSP(-/-)Ova小鼠气道上皮的粘液产生增加。这些数据表明CCSP在气道反应性和宿主对过敏性气道炎症的反应中的作用,并为气道上皮在调节过敏性疾病中的气道反应中的作用提供进一步的证据。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号