畜牧兽医学报 ›› 2015, Vol. 46 ›› Issue (4): 644-649.doi: 10.11843/j.issn.0366-6964.2015.04.019

• 基础兽医 • 上一篇    下一篇

新城疫疫苗毒和低致病性禽流感病毒感染SPF鸡炎症因子的变化

牛玉娟1,马海营1,张振东1,吕传位1,朱明霞2,3* ,刘思当1*   

  1. (1.山东农业大学,泰安 271018;2.聊城大学农学院,聊城 252059;3.山东凤祥股份有限公司,阳谷 252300)
  • 收稿日期:2014-07-31 出版日期:2015-04-23 发布日期:2015-04-23
  • 通讯作者: 朱明霞,E-mail:1538054669@qq.com;刘思当,E-mail:liusid@sdau.edu.cn
  • 作者简介:牛玉娟(1989-),女,山东济宁人,硕士生,主要从事病理学研究,E-mail:yujuanniu@163.com
  • 基金资助:

    山东省高等学校科技计划项目(J14LF03);博士后自选课题

The Changes of Inflammatory Factors in SPF Chicken infected by LaSota live Vaccine and H9N2 Influenza Virus

NIU Yu-juan1,MA Hai-ying1,ZHANG Zhen-dong1,LÜ Chuan-wei1,ZHU Ming-xia2,3* ,LIU Si-dang1*   

  1. (1.Shandong Agricultural University,Tai’an 271018,China;2.Agricultural College of Liaocheng University,Liaocheng 252059,China;3.Shandong Fengxiang Group Limited Liability Company,Yanggu 252300,China)
  • Received:2014-07-31 Online:2015-04-23 Published:2015-04-23

摘要:

旨在探讨炎症因子(白细胞介素1、白细胞介素6、白细胞介素8、肿瘤坏死因子α)与气管黏膜分泌型免疫球蛋白A (SIgA)的变化是否可作为鸡呼吸道病的判定及预警指标。通过新城疫(ND)LaSota 疫苗毒和低致病性禽流感病毒(H9N2)单独及混合感染SPF雏鸡,造成呼吸道感染,采用双抗体夹心 ELISA 法对 SPF 鸡血清和气管冲洗液中炎症因子及SIgA的含量进行动态检测,分析其数量变化与呼吸道病症之间的内在联系。结果表明:ND LaSota 疫苗毒和低致病性禽流感 H9N2经呼吸道接种 SPF雏鸡后,会迅速出现呼吸道症状及炎症反应,炎症因子及黏膜抗体的含量较对照组显著升高;两病毒感染后引起的5种炎症因子含量的变化具有明显的时间差异;血清与气管冲洗液中炎症因子的变化大致相同,但是冲洗液5种炎症因子的含量变化更加敏感。所研究5种炎症因子的变化与鸡呼吸道感染的病程及病情均密切相关,借助炎症因子(尤其是IL-8)的检测有助于确定呼吸道炎症的发生及严重程度,对鸡呼吸道病的判定及预警具有重要的参考价值。

Abstract:

The aim of the present study was to investigate if the changes of inflammatory cytokines (interleukin 1,interleukin 6,interleukin 8,tumor necrosis factor alpha) and tracheal washing liquid and trachea mucosal secretory immunglobulin A (SIgA) can be used as judgments or warning indicators of respiratory diseases.We established a respiratory diseases model by infecting SPF chickens with Newcastle disease LaSota live vaccine and low pathogenic influenza virus (H9N2) single or mixed.Inflammatory factors of serum and SIgA were measured by double antibody sandwich ELISA method to analyze the inner relationship between the quantity changes and respiratory diseases.The results showed that SPF chickens appeared respiratory symptoms after inoculating LaSota vaccine and H9N2 AIV,content of inflammatory factors and mucosal antibody became significantly higher than those in control group,the changes of five cytokines content induced by two viral infection had obvious differences with time going,inflammation mediums became roughly same while the content in serum were less than in washing liquid.Pathological changes of chicken respiratory tract infection were closely related to the changing process of five inflammatory factors.With the help of detection of inflammatory factors,especially the IL-8,the severity of respiratory tract inflammation could be identified,so the detection of its content would have important reference value for the judgment of respiratory illness and early warning.

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