白细胞介素6对哮喘小鼠气道炎症和上皮下纤维化的影响

被引:13
作者
邱忠民
吕寒静
杨忠民
洪光朝
魏为利
王岚
机构
[1] 同济大学附属同济医院呼吸内科
[2] 同济大学附属同济医院呼吸内科 上海
[3] 上海
关键词
白细胞介素-6; 气道炎症; 气道结构重建;
D O I
暂无
中图分类号
R562.25 [];
学科分类号
1002 ; 100201 ;
摘要
目的 :研究白细胞介素 6对哮喘小鼠气道炎症和气道结构重建的作用。方法 :雄性BALB C种系小鼠 2 4只 ,随机分成处理组、模型组和对照组 ,每组 8只 ,用卵蛋白致敏和反复激发 4周。每次激发前处理组腹腔内注射 2 0 0 μg白细胞介素 6单克隆抗体 ,模型组注射 2 0 0 μg大鼠IgG ,对照组注射等量的生理盐水。比较 3组气道反应性 (PC1 2 0 )、支气管肺泡灌洗液细胞成分、基底膜和上皮下胶原层厚度的变化。结果 :卵蛋白反复激发诱发小鼠PC1 2 0 显著降低 ,气道内炎症细胞数量明显增多 ,上皮基底膜增厚和上皮下胶原增加。与模型组比较 ,处理组支气管肺泡灌洗液中巨噬细胞、中性白细胞、嗜酸细胞和淋巴细胞明显上升(P <0 0 5 ) ,基底膜和上皮下胶原厚度分别从 (3 1± 0 4 ) μm和 (4 5± 0 3) μm减少至 (2 2± 0 2 ) μm和 (3 5± 0 2 ) μm(P <0 0 5 ) ,但PC1 2 0 无改变 (P >0 0 5 )。结论 :白细胞介素 6在哮喘中的作用是抑制气道炎症和促进气道结构重建。
引用
收藏
页码:709 / 712
页数:4
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