中国畜牧兽医

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家兔与BALB/c小鼠对猪瘟病毒E2蛋白靶向化树突状细胞疫苗敏感性的比较

王金良1,董炳梅2,魏凤1,孙全文3,王爱华3,唐娜1,张春玲2,沈志强1,2   

  1. 1.山东省滨州畜牧兽医研究院,山东滨州 256600;2.山东绿都生物科技有限公司,山东滨州 256600;3.河北北方学院,河北张家口 075000)
  • 出版日期:2014-01-20 发布日期:2014-02-27
  • 通讯作者: 沈志强。Tel:0543-3405108;E-mail:bzshenzq@163.com
  • 作者简介:王金良(1978—),男,辽宁人,博士,助理研究员,研究方向:病原学与免疫学、基因工程疫苗研制。
  • 基金资助:

    山东省自然科学基金(ZR2010CQ012);河北北方学院重大项目(zd201307)。

Comparison of Sensitivity to Classical Swine Fever Virus E2 Protein Targeting Dendritic Cell Vaccine between Rabbits and BALB/c Mice

  WANG Jin-liang1, DONG Bing-mei2, WEI Feng1, SUN Quan-wen3,WANG Ai-hua3,TANG Na1, ZHANG Chun-ling2, SHEN Zhi-qiang1,2   

  1. (1.Shandong Binzhou Animal Science & Veterinary Medicine Academy,Binzhou 256600,China;2.Shandong Lvdu Bio-sciences & Technology Co.,Ltd.,Binzhou 256600,China;3.Hebei North University, Zhangjiakou 075000,China)
  • Online:2014-01-20 Published:2014-02-27

摘要: 为比较家兔与BALB/c小鼠对猪瘟病毒E2蛋白靶向化树突状细胞疫苗的敏感性,本研究首先根据小鼠与家兔体重比,分别免疫糖基化E2蛋白与E2蛋白(家兔2 mg/只,小鼠20 μg/只),在不同时间采血制备血清,通过ELISA方法测定血清中IgG水平。结果显示,接种后BALB/c小鼠出现了轻度的免疫应答,而家兔产生了强而持久的免疫保护。本研究对BALB/c小鼠的接种量进行了进一步摸索,结果表明,50与100 μg/只免疫效果明显优于20 μg/只;其中50 μg/只E2蛋白与糖基化E2蛋白免疫后,血清IgG水平较高且稳定;而100 μg/只糖基化E2蛋白免疫后,免疫初期,糖基化E2蛋白组产生了免疫抑制,至21 d抗体水平逐渐升高且达极高水平;但100 μg/只E2蛋白免疫后,整个免疫期内抗体水平均较低,只有轻微波动。以上结果表明,家兔对糖基化E2蛋白与E2蛋白的敏感性均显著高于BALB/c小鼠,且糖基化E2蛋白免疫效果明显好于E2蛋白,BALB/c小鼠的糖基化E2蛋白最佳免疫剂量为50 μg/只。

关键词: 家兔; BALB/c小鼠; 猪瘟病毒; E2蛋白; 树突状细胞疫苗; 敏感性

Abstract: In order to compare the sensitivity to classical swine fever virus E2 protein targeting dendritic cell vaccine between rabbits and BALB/c mice, we firstly inoculated rabbits and BALB/c mice with glycosylated E2 protein and E2 protein (2 mg in rabbits and 20 μg in mice) according to the body weight percentage of rabbits and BALB/c mice. The IgG levels in the serum were determined by ELISA method in different time. The results showed that the BALB/c mice generated mild immune response only, and the rabbits had a strong and lasting immune protection. Secondly, the research on inoculation ammount in BALB/c mice were explored further. The results indicated that the immune effects were obviously better after inoculation with 100 or 50 μg than that of 20 μg inoculation amount. The IgG level in serum was high and stable after the BALB/c mice inoculated with 50 μg glycosylated E2 protein. However, the mice emerged immune suppression in initial stage after inoculation with 100 μg glycosylated E2 protein, and the IgG level increased to high level on 21 d. Surprisingly, the IgG level was low and only slightly fluctuated after the mice inoculated with 100 μg E2 protein. The above results proved that the sensitivity of rabbits was significantly higher than that of BALB/c mice to the glycosyated E2 protein and E2 protein. Furthermore, the immune effect of glycosylated E2 protein was better than that of E2 protein, and the best inoculation dose was 50 μg in BALB/c mice.

Key words: rabbits; BALB/c mice; classical swine fever virus; E2 protein; dendritic cell vaccine; sensitivity