畜牧兽医学报 ›› 2015, Vol. 46 ›› Issue (3): 438-444.doi: 10.11843/j.issn.0366-6964.2015.03.013

• 预防兽医 • 上一篇    下一篇

小反刍兽疫病毒化学合成表位多肽对小鼠的免疫效果研究

刘文华1,王志亮2*,吴晓东2,孙成友2   

  1. (1.青岛农业大学动物科技学院,青岛 266109;2.中国动物卫生与流行病学中心 国家外来动物疫病诊断中心,青岛 266032 )
  • 收稿日期:2014-06-25 出版日期:2015-03-23 发布日期:2015-03-23
  • 通讯作者: 王志亮,男,研究员,博士生导师,主要从事外来病的诊断技术和分子生物学研究,Tel:86-532-87839188,Fax:86-532-87839922,E-mail:zlwang111@163.com
  • 作者简介:刘文华(1970-),女,山东莱阳人,副教授,博士,主要从事兽医微生物学与免疫学的教学和科研工作,E-mail:whliu2668@qau.edu.cn

Research of the Immune Efficacy of Chemical Synthetic Epitope Polypeptide of Peste des Petits Ruminants Virus on Mice

LIU Wen-hua1,WANG Zhi-liang2* ,WU Xiao-dong2,SUN Cheng-you2   

  1. (1.Animal Science and Veterinary Medicine College,Qingdao Agricultural University,Qingdao 266109,China;2.National Diagnostic Center for Exotic Animal Diseases,China Animal Health and Epidemiology Center,Qingdao 266032,China)
  • Received:2014-06-25 Online:2015-03-23 Published:2015-03-23

摘要:

利用化学合成的小反刍兽疫病毒(PPRV)表位多肽免疫小鼠,以期了解表位多肽的免疫效果。首先利用表位预测软件筛选针对PPRV FH基因的4条表位多肽,并进行化学合成。将合成多肽免疫小鼠,通过ELISA、MTT法、NK细胞杀伤活性测定及T细胞亚群检测等免疫试验分析预测表位的抗原性。结果表明:在筛选的4条表位多肽中,H242-255、F528-541和 H349-362具有较好的体液免疫功能;H242-255、H392-405具有较好的细胞免疫功能。其中H242-255多肽能够满足两方面的功能,有望作为候选表位疫苗成分。试验结果为筛选有效表位用于PPRV表位疫苗的研究奠定了基础。

Abstract:

Epitope polypeptides of peste des petits ruminants virus (PPRV) were synthesized and its immunogenicity was examined in mice.Four epitope polypeptides against F and H gene of PPRV were selected by the epitope prediction software and acquired by chemical synthesis,then were administered subcutaneously at dose of 100 μg to BALB/c mice,and the epitope antigenicity was analyzed by immunoassays of ELISA,MTT,the killing activity of NK cell and T lymphocyte subsets detection.As a result,H242-255,F528-541 and H349-362 had better humoral immune function among the four epitope polypeptides,while H242-255 and H392-405 had better cellular immune function.Thus,peptide of H242-255 can satisfy the two immunologic functions,and can be used as a candidate epitope vaccine component.The study had great significance by screening efficient epitopes for the development of PPRV epitope vaccines.

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