畜牧兽医学报 ›› 2014, Vol. 45 ›› Issue (3): 471-476.doi: 10.11843/j.issn.0366-6964.2014.03.018

• 基础兽医 • 上一篇    下一篇

p38MAPK在H9N2亚型猪流感病毒诱导小鼠急性肺损伤中的表达

魏东,张瑞华,徐明举,刘宝剑,王国华,徐彤*   

  1. (河北北方学院,张家口 075000)
  • 收稿日期:2013-07-18 出版日期:2014-03-23 发布日期:2014-03-23
  • 通讯作者: 徐彤(1969-),男,博士,教授,E-mail:xutong1969@sohu.com
  • 作者简介:魏东(1971-),男,河北张家口人,副研究员,博士,主要从事基础兽医学研究,E-mail:hbzjkwd@163.com
  • 基金资助:

    河北省自然基金(C2009001028;C2011405002);河北省教育厅重点课题(ZD20131045);河北省教育厅课题(Q2012043);河北北方学院重大项目(ZD201306)

Expression of p38MAPK on H9N2-SIV Induced Acute Lung Injury in Mice

WEI Dong,ZHANG Rui-hua,XU Ming-ju,LIU Bao-jian,WANG Guo-hua,XU Tong*   

  1. (Hebei North University,Zhangjiakou 075000, China)
  • Received:2013-07-18 Online:2014-03-23 Published:2014-03-23

摘要:

为研究p38丝裂原活化蛋白激酶(p38MAPK)在H9N2亚型猪流感病毒(H9N2-SIV)诱导小鼠急性肺损伤(ALI)中的表达,将180只7周龄SPF级BALB/c雌性小鼠,随机平均分成H9N2-SIV感染组(感染组)、H9N2-SIV感染+p38MAPK特异性抑制剂SB203580组(SB组)和对照组,在感染后的第2、4、6、8和14天,分别进行临床观察、肺病理组织学观察、肺中磷酸化p38MAPK分布和表达的测定。结果显示:与对照组比较,感染组和SB组小鼠均表现明显的临床症状,感染组小鼠肺磷酸化p38MAPK蛋白表达在感染后第2天即明显增强,至第6天蛋白表达达高峰,差异极其显著(P<0.01),SB203580可抑制肺组织中p38MAPK的磷酸化,SB组小鼠肺损伤程度小于感染组,表明p38MAPK能够被H9N2-SIV激活并参与ALI的发生和发展过程,p38MAPK特异性抑制剂SB203580能够减轻ALI中肺组织的病理损伤。

Abstract:

To explore the expression of p38MAPK on H9N2-SIV induced acute lung injury(ALI) in mice,180 seven weeks old SPF BALB/c female mice were randomly divided into H9N2-SIV infected group(infected group),H9N2-SIV infected +SB203580 group(SB group) and control group,and clinical observation,pathological histology observation of lung,and the determination of distribution and expression of phospho-p38MAPK in lung were conducted on the 2nd,4th,6th,day and the 8th day post infection(p.i.) respectively. We found that the mice of infection group and SB group showed clinically apparent symptoms,compared with control group,the expression of phospho-p38MAPK protein in infection group was stronger with significant difference(P<0.05) on the 2nd day p.i.,it reached to the top with extremely significant difference(P<0.01) on the 6th day p.i. SB203580 can inhibits phosphorylated p38MAPK in lung tissue,lung injury of SB group mice is less than that of infection group. It indicates that p38MAPK can be activated by H9N2-SIV and participate in the occurrence and development of ALI,SB203580 can lighten pathological injury of lung in ALI.

中图分类号: