畜牧兽医学报 ›› 2016, Vol. 47 ›› Issue (6): 1215-1221.doi: 10.11843/j.issn.0366-6964.2016.06.017

• 预防兽医 • 上一篇    下一篇

基因A型鸭甲肝病毒弱毒株免疫雏鸭的8种细胞因子mRNA变化分析

张焕容*,张冰,王栋,岳华   

  1. (西南民族大学生命科学与技术学院,成都 610041)
  • 收稿日期:2015-11-25 出版日期:2016-06-23 发布日期:2016-06-23
  • 通讯作者: 张焕容, E-mail:zhrong05@163.com
  • 作者简介:张焕容(1968-),女,重庆江津人,博士,教授,主要从事动物传染病研究,Tel:028-85522727
  • 基金资助:

    中央高校基本科研业务费专项资金项目(2014NZYQN58); 国家民委科技项目(14XNZ025)

mRNA Change Analysis of Eight Cytokines in Ducklings Stimulated by Attenuated Duck Hepatitis A Virus Genotype A MY Strain

ZHANG Huan-rong*,ZHANG Bing,WANG Dong,YUE Hua   

  1. (College of Life Science and Technology,Southwest University for Nationalities,Chengdu 610041,China)
  • Received:2015-11-25 Online:2016-06-23 Published:2016-06-23

摘要:

为研究基因A型鸭甲肝病毒(DHAV-A)MY弱毒株对雏鸭细胞因子表达的影响,阐明细胞因子在DHAV-A弱毒疫苗免疫中的作用,利用荧光定量RT-PCR(RRT-PCR)方法,检测DHAV-A MY弱毒株接种1日龄SPF雏鸭后0.25、0.5、1、2、3和5 d共6个时间点肝、脾和脑组织中IFN-α、IFN-β、IFN-γ,以及IL-1β、IL-2、IL-6、IL-8和TNF-α共8种细胞因子的mRNA转录水平,并结合各时间点DHAV-A的荷载量进行分析。结果表明:肝和脑组织中2 d时间点以及脾组织中3 d时间点病毒荷载量达到最高;三种组织中,8种细胞因子的转录水平均随着病毒荷载量的增加而升高,且在各组织病毒荷载量最高时间点,8种细胞因子的转录水平均极显著升高(P<0.01),结果证明DHAV-A MY弱毒株可刺激雏鸭抗病毒细胞因子IFN-α、IFN-β、IFN-γ和TNF-α以及炎性细胞因子IL-1β、IL-2、IL-6和IL-8 mRNA的转录,本研究丰富了DHAV-A MY弱毒株的免疫机制。

Abstract:

In order to explore the roles of cytokines responding to attenuated duck hepatitis A virus genotype A (DHAV-A) vaccine immunization,the effects of attenuated DHAV-A MY strain on cytokine transcription in ducklings were analyzed.The mRNA transcription levels of 8 cytokines,such as IFN-α,IFN-β,IFN-γ and IL-1β,IL-2,IL-6,IL-8,and TNF-α,were determined by RRT-PCR in liver,spleen and brain of ducklings at different time points of 0.25 0.5,1,2,3 and 5 days post attenuated DHAV-A MY strain injecting 1-day-old SPF ducklings,and the virus loads of DHAV-A MY strain in liver,spleen and brain were also detected by RRT-PCR.The results indicated that the virus load reached the highest level in liver and brain at 2 d time point,and at 3 d time point in spleen post attenuated DHAV-A MY strain injection.The mRNA transcription levels of 8 cytokines in liver,spleen and brain up-regulated very significantly at the corresponding time points when the virus load reached the highest level post DHAV-A MY strain injection (P<0.01).The results indicated that attenuated DHAV-A MY strain could stimulate the transcription of anti-viral cytokines IFN-α,IFN-β,IFN-γ and TNF-α,as well as proinflammatory cytokines IL-1β,IL-2,IL-6 and IL-8,our results enrich the immunization mechanism of DHAV-A MY strain.

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