畜牧兽医学报 ›› 2015, Vol. 46 ›› Issue (5): 830-835.doi: 10.11843/j.issn.0366-6964.2015.05.020

• 预防兽医 • 上一篇    下一篇

IBDV感染雏鸡外周血液淋巴细胞chMDA5信号通路因子表达的动态变化

王成成,葛铭,刘超男,栾亚男,李广兴,张瑞莉*   

  1. (东北农业大学动物医学学院,哈尔滨 150030)
  • 收稿日期:2014-09-12 出版日期:2015-05-23 发布日期:2015-05-23
  • 通讯作者: 张瑞莉,E-mail:zhangruil@neau.edu.cn
  • 作者简介:王成成(1988-),女,辽宁辽阳人,硕士生,主要从事预防兽医学研究
  • 基金资助:

    国家自然科学基金资助项目(31272533)

Dynamic Changing in the Expression of chMDA5 Signal Pathway Factors in Peripheral Blood Lymphocytes of Chicken Infected with IBDV

WANG Cheng-cheng,GE Ming,LIU Chao-nan,LUAN Ya-nan,LI Guang-xing,ZHANG Rui-li*   

  1. (College of Veterinary Medicine,Northeast Agricultural University,Harbin 150030,China)
  • Received:2014-09-12 Online:2015-05-23 Published:2015-05-23

摘要:

为研究鸡MDA5(chMDA5)及其信号通路因子在传染性法氏囊病病毒(IBDV)感染雏鸡体内的表达情况,将40只14日龄SPF雏鸡随机分为感染组和对照组,感染组雏鸡经点眼、滴鼻方式给予IBDV液,对照组雏鸡于相同日龄、相同途径给予相同剂量PBS,于感染后第1、4、7及21天采取雏鸡外周血液并分离淋巴细胞,采用实时荧光定量PCR方法检测雏鸡外周血液淋巴细胞chMDA5信号通路因子mRNA转录及IBDV载量的动态变化。结果表明,IBDV感染雏鸡后第4天病毒载量较感染后第1天明显升高,之后逐渐下降;雏鸡淋巴细胞chMDA5及其信号通路因子表达量在感染后第4天均有明显的上升(P<0.01或P<0.05),感染后第7—21天又出现下调。IBDV能够激活雏鸡体内chMDA5信号通路,并且IBDV复制与chMDA5信号通路因子的表达有着密切关系。

Abstract:

The present study investigated the expression of chick melanoma differentiation associated gene 5(chMDA5) and its signaling pathway factors in chickens infected with infectious bursal disease virus(IBDV).Fourty 14-day-old specific pathogen free(SPF) chickens were randomly allocated into 2 groups which were infected and control groups.The infected group of chickens was inoculated with IBDV by intraocularly and intranasally.Meanwhile,the control group chickens were administered with PBS by intraocularly and intranasally.Peripheral blood lymphocytes were isolated at the 1st,4th,7th and 21st day after infection.Real-time fluorescence quantitative PCR method was used to detect the mRNA expression levels of chMDA5 signal pathway factors and the IBDV loads in peripheral blood lymphocytes of chickens.The results showed that the viral loads of IBDV-infected chickens in peripheral blood lymphocytes on the 4th day were significantly higher than that in the 1st day,and then gradually declined.The expression of chMDA5 and its downstream targets genes were significantly increased(P<0.01or P<0.05) at the 4th day after infection,then reduced at 7-21 day than that in the control group.The results indicated that IBDV could activate the chMDA5 signaling pathways in chickens.In addition,the replication of IBDV had closely relationship with the expression of chMDA5 signaling pathways factors.

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