中国寄生虫学与寄生虫病杂志 ›› 2001, Vol. 19 ›› Issue (3): 6-156.

• 论著 • 上一篇    下一篇

东方田鼠天然抗体相关的日本血吸虫抗原基因筛选和克隆

阎玉涛,刘述先,宋光承,徐裕信,何永康
  

  1. 中国预防医学科学院寄生虫病研究所!世界卫生组织疟疾、血吸虫病和丝虫病合作中心;卫生部寄生虫病原与媒介生物学重点实验室;上海200025;中国预防医学科学院寄生虫病研究所!世界卫生组织疟疾、血吸虫病和丝虫病合作中心;卫生部寄生虫病原与媒介生物学重点实验室;上海200025;
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2001-06-30 发布日期:2001-06-30

Screening and Cloning of Genes Encoding Schistosoma japonicum Antigens Related to the Serum Antibodies in Mirotus Fortis

YAN Yu-tao1;LIU Shu-xian1;SONG Guang-cheng1;XU Yu-xin1;HE Yong-kang2   

  1. 1 Institute of Parasitic Diseases;Chinese Academy of Preventive Medicine*;Shanghai;200025; 2 Hunan Provincial Institute of Parasitic Diseases;Yueyang;414000
  • Received:1900-01-01 Revised:1900-01-01 Online:2001-06-30 Published:2001-06-30

摘要:   目的 研究东方田鼠对日本血吸虫感染天然抵抗力的蛋白分子基因。 方法 用未感染日本血吸虫的东方田鼠血清免疫筛选日本血吸虫成虫 c DNA文库 ,将阳性重组子克隆及测序。利用软件和互联网对核酸序列进行分析 ,确定目的基因。 结果 筛选出编码东方田鼠天然抵抗力相关的 7种蛋白分子基因 :三磷酸甘油醛脱氢酶、丝氨酸蛋白酶抑制剂、热休克蛋白、 2 2 .6 k Da膜相关抗原、副肌球蛋白、细胞色素 C及组织蛋白酶 B。 结论 东方田鼠对日本血吸虫的天然抵抗力可能有许多蛋白分子参与。

关键词: 日本血吸虫, 东方田鼠, cDNA文库, 筛选, 克隆

Abstract:  Objective To understand and identify the molecules related to the natural resistance to Schistosoma japonicum infection in Mirotus fortis. Methods Sera from Mirotus fortis without schistosome infection were collected. The S.japonicum adult worm cDNA library was immunologically screened with the sera. The positive recombinants were identified, cloned, sequenced and analysed with software and internet. Results Seven genes encoding antigens relevant to sera antibodies in Mirotus fortis were cloned and sequenced. These antigens included glyceraldehyde 3-phosphate dehydrogenase (GAPDH), serine protease inhibitors(SERPIN), 70 kDa heat shock protein(HSP70), 22.6 kDa membrane-associated antigen, paramyosin (Sj97), cytochrome C and cathepsin B. Conclusion Many protein molecules might have been involved in natural resistance to \{S.japonicum\} infection in Mirotus fortis. The above 7 kinds of molecules may be identified as new candidates of vaccine against \{S.japonicum\} infection.

Key words: Schistosoma japonicum, Mirotus fortis, cDNA library, screen, cloning