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哮喘气道重塑大鼠肺组织磷酸化JNK、血清/BALF白介素1β表达变化

Chinese Journal of Immunology(2008)

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Abstract
目的:研究哮喘气道重塑大鼠肺组织磷酸化c-Jun氨基末端激酶(P-JNK)的表达,血清/支气管肺泡灌洗液(BALF)白介素1β(IL-1β)的含量,探讨P-JNK在哮喘气道重塑中的作用及IL-1β对JNK活化的可能影响.方法:SD大鼠随机分为对照组(C)、哮喘组(A),复制哮喘气道重塑模型.图像分析技术测定支气管壁厚度(Wat)和平滑肌厚度(Wam),ELISA法测定血清、BALF中IL-1β含量,免疫组化(IHC)、Western blot检测肺内P-JNK蛋白表达,直线相关分析显示Wat、Wam与P-JNK蛋白(平均吸光度mean absorbance,mA表示)的相关性及P-JNK蛋白与血清、BALF IL-1β浓度的相关性.结果:A组Wat、Wam及血清、BALF IL-1β浓度均较C组增加(均P<0.01);A组P-JNK mA及光密度值均较C组增加(均P<0.01);Wat、Wam与P-JNK mA均呈显著正相关(均P<0.01);P-JNK mA与血清、BALF IL-1β浓度均呈显著正相关(均P<0.01).结论:哮喘气道重塑大鼠肺组织P-JNK、血清、BALF IL-1β表达增强,IL-1β可能促进JNK活化.
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Key words
Interleukin-1β,Airway remodeling,Asthma,c-Jun N-terminal kinase
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