畜牧兽医学报 ›› 2014, Vol. 45 ›› Issue (6): 1004-1010.doi: 10.11843/j.issn.0366-6964.2014.06.020

• 基础兽医 • 上一篇    下一篇

毒害艾美尔球虫感染对雏鸡肠组织热休克蛋白-70表达的影响

翟杰1,吕志慧1,2,马春霞1,3,高雪丽1,刘超男1,王全杰1,吕晓萍1,郑世民1*   

  1. (1.东北农业大学动物医学学院,哈尔滨 150030;2.遵义医学院珠海校区,珠海 519041;3.广西兽医研究所,南宁 530001)
  • 收稿日期:2013-12-09 出版日期:2014-06-23 发布日期:2014-06-23
  • 通讯作者: 郑世民,E-mail:zhengshiminbl@sohu.com
  • 作者简介:翟杰(1989-),男,河南延津人,硕士生,主要从事动物免疫病理研究,E-mail:blzhaijie@163.com
  • 基金资助:

    黑龙江省教育厅项目(12531015)

Effect of Infection of E.necatrix on Heat Shock Protein (HSP)-70 Expression in Intestinal Tissue of Broiler Chickens

ZHAI Jie1,LYU Zhi-hui1,2,MA Chun-xia1,3,GAO Xue-li1,LIU Chao-nan1,WANG Quan-jie1,LYU Xiao-ping1,ZHENG Shi-min1*   

  1. (1.College of Veterinary Medicine,Northeast Agricultural University,Harbin 150030, China;2.Zhuhai Campus of Zunyi Medical College,Zhuhai 519041, China;3.Guangxi Veterinary Research Institute,Nanning 530001, China)
  • Received:2013-12-09 Online:2014-06-23 Published:2014-06-23

摘要:

将90只海兰褐雏鸡分为对照组、毒害艾美尔球虫(E.necatrix)1次感染组和2次感染组,应用SP免疫组化法,通过对热休克蛋白(HSP)-70表达的检测,较全面系统地研究了E.necatrix感染雏鸡后,其肠组织HSP-70表达的动态变化。研究发现,雏鸡初次感染E.necatrix后第5~9天,其肠组织HSP-70表达均不同程度的低于对照雏鸡,其中十二指肠、空肠和盲肠显著或极显著低于对照雏鸡(P<0.05或P<0.01),之后迅速上升,于第14天高于对照雏鸡并达峰值;E.necatrix二次攻击性感染雏鸡后,其十二指肠、空肠HSP-70表达呈现“先显著低于对照雏鸡,随后上升”,并逐渐高于对照雏鸡。而E.necatrix 1次大剂量感染雏鸡后,其肠组织HSP-70表达则于第6、10、15天高于对照雏鸡。表明E.necatrix初期感染雏鸡肠组织HSP-70表达受到一定程度的抑制,而E.necatrix大剂量感染雏鸡后,HSP-70表达的增高与E.necatrix对机体的损害程度密切相关。该项研究为进一步探讨球虫的致病机制提供了重要参考依据。

Abstract:

Ninety chickens were divided into E.necatrix one time infection group, E.necatrix twice infection group,and control group.We researched dynamic change of HSP-70 expression in intestinal tissue of chickens infected with E.necatrix applying immunohistochemical method.The results showed that the HSP-70 expression in intestinal tissue of twice infection chickens were lower than the control chickens by different degrees at the 5th to 9th days after primer infection,the HSP-70 expression of duodenum,jejunum and caecum were significant or very significant lower than control chickens (P<0.05 or P<0.01),later rising rapidly,higher than control chickens at the 14th day and reached the peak;the HSP-70 expression in duodenum and jejunum of chickens showing a trend of significantly lower than control chickens at first,then gradually rising and higher than control chickens after the second challenge infection.But,the HSP-70 expression in intestinal tissue of E.necatrix one time infection chickens was higher than control chickens at the 6th,10th,15th day.These indicate that the primer infection have a certain degree of inhibition of HSP-70 expression in intestinal tissue of chickens,and the increase of HSP-70 expression is closely related with the degree of damage on the body with E.necatrix infection.This study provides important reference for the further study of pathogenic mechanism of coccidian.

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