中国寄生虫学与寄生虫病杂志 ›› 2003, Vol. 21 ›› Issue (5): 9-288.

• 论著 • 上一篇    下一篇

自愈水牛血清免疫筛选日本血吸虫cDNA文库

王文琴,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:2003-10-30 发布日期:2003-10-30

Schistosoma japonicum: Screening of cDNA Library with Sera from Self-cured Water Buffaloes(Bos buffelus)

WANG Wen-qin,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
  • Received:1900-01-01 Revised:1900-01-01 Online:2003-10-30 Published:2003-10-30

摘要:   目的 采用自愈水牛血清免疫筛选日本血吸虫成虫cDNA文库并寻找日本血吸虫疫苗新候选抗原。 方法 用感染日本血吸虫后的自愈水牛血清免疫筛选日本血吸虫成虫cDNA文库,将阳性重组子克隆、测序,对核酸序列进行分析,确定目的基因。 结果 从大陆株日本血吸虫成虫λZAPIIcDNA文库筛到26个阳性克隆,经初步鉴定获3种编码蛋白分子的基因:副肌球蛋白,谷胱甘肽S转移酶,羟基类固醇脱氢酶。 结论 感染日本血吸虫后的自愈水牛血清筛选日本血吸虫成虫cDNA文库,可用于寻找日本血吸虫疫苗新候选抗原。

关键词: 日本血吸虫, 自愈, cDNA文库, 免疫筛选

Abstract:  Objective To understand and identify the molecules related to the self-cure of Schistosoma japonicum infection in water buffaloes. Methods The S. japonicum adult worm cDNA library was immunologically screened with the sera of self-cured water buffaloes. The positive clones were identified, cloned, sequenced and analysed with software. Results Three genes encoding antigens relevant to sera antibodies in water buffaloes were cloned and sequenced. These antigens included paramyosin (Sj97), GST, carbonyl reductase-like 20-β-hydroxysteroid dehydrogenase(CR/20-β-HSD). Conclusion Sera from self-cured S. japonicum infected water buffaloes can be used to screen adult worm cDNA library for vaccine development.

Key words: Schistosoma japonicum, self-cure, cDNA library, immunoscreening, clone