中国寄生虫学与寄生虫病杂志 ›› 2004, Vol. 22 ›› Issue (2): 4-82.

• 论著 • 上一篇    下一篇

紫外线致弱童虫免疫家兔血清筛选日本血吸虫成虫cDNA文库

李小红,刘述先,宋光承,徐裕信,曹建平,陈家旭   

  1. 中国疾病预防控制中心寄生虫病预防控制所,世界卫生组织疟疾、血吸虫病和丝虫病合作中心,上海200025
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2004-04-30 发布日期:2004-04-30

Screening of cDNA Library of Schistosoma japonicum with Sera from Rabbits Vaccinated with Ultraviolet-attenuated Schistosomula

LI Xiao-hong,LIU Shu-xian,SONG Guang-cheng,XU Yu-xin,CAO Jian-ping,CHEN Jia-xu   

  1. Institute of Parasitic Diseases,Chinese Center for Disease Control and Prevention,Shanghai 200025,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2004-04-30 Published:2004-04-30

摘要: 目的 用致弱疫苗免疫血清、感染血清筛选文库获取新的日本血吸虫特异性未知抗原基因。 方法 用紫外线致弱童虫免疫兔血清、感染血清免疫筛选日本血吸虫成虫cD?鄄NA文库 ,对阳性重组子进行克隆、测序 ,利用软件对核酸序列进行分析 ,确定目的基因。 结果 筛选出 6种蛋白分子基因 :3-磷酸甘油醛脱氢酶 (GAPDH) ,丝氨酸蛋白酶抑制剂 (serpin) ,线粒体编码蛋白 ,肌球蛋白 (myosin)部分重链基因以及两个未知新基因。 结论 紫外线致弱疫苗免疫血清筛选cDNA文库为寻找新的抗血吸虫病疫苗提供了又一途径。

关键词: 日本血吸虫, 紫外线, DNA序列分析

Abstract: Objective To search new potential schistosomiasis vaccine by screening cDNA library with sera of rabbits vaccinated with attenuated larvae. Methods Schistosoma japonicum (Sj) adult worm cDNA library was screened with sera of rabbits vaccinated with ultraviolet-attenuated schitosomula and by sera of infected rabbits, and the inserts of positive clones were amplified and sequenced. Results Six kinds of Sj genes were obtained after three rounds of screening. Among the genes were glyceraldehyde 3-phosphate dehydrogenase (GAPDH), serine protease inhibitors (serpin), mitochondrion coding region, part of myosin heavy chain gene and two new genes, respectively. Conclusion Screening cDNA library with sera of animals vaccinated with attenuated larvae is an effective way to search new vaccine candidates for schistosomiasis.

Key words: Schistosoma japonicum, ultraviolet rays, DNA sequence analysis