中国寄生虫学与寄生虫病杂志 ›› 2003, Vol. 21 ›› Issue (6): 4-332.

• 论著 • 上一篇    下一篇

日本血吸虫信号蛋白14-3-3的虫体免疫定位

刘庆中,沈继龙 ,汪学龙
  

  1. 安徽医科大学病原生物学,温州医学院附属第一医院检验科,温州 325000,安徽省基因研究重点实验室,合肥 230032
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2003-12-30 发布日期:2003-12-30

Immunolocalization of the Signaling Protein l4-3-3 of Schistosoma japonicum

LIU Qing-zhong*;,SHEN Ji-long~**,WANG Xue-1ong
  

  1. Department of Pathobiology,Anhui Medical University,Hefei 230032
  • Received:1900-01-01 Revised:1900-01-01 Online:2003-12-30 Published:2003-12-30

摘要:   目的 研究抗重组日本血吸虫信号蛋白1433(rSj1433)单克隆抗体对天然Sjl433的结合活性,观察Sj1433在虫体内的定位。 方法 从阳性钉螺体内逸出尾蚴,感染家兔,分别于感染后15d和42d剖杀,静脉灌注法收集童虫和成虫制备冰冻切片。利用rSj1433单克隆抗体,间接免疫荧光法探讨信号蛋白1433虫体内的分布。 结果 免疫荧光染色结果显示,rSj1433单克隆抗体可特异性地结合天然Sj1433抗原表位,背景清晰,Sj1433广泛分布在雌、雄成虫的皮层、皮下层、肌层和实质层,前三种组织中特异性荧光呈线状分布,实质中特异性荧光弥散;童虫中Sj1433也广泛的分布在皮层、皮下层、肌层和实质层。 结论 免疫荧光染色成功地确定了Sj1433蛋白在成虫和15d童虫体内的分布

关键词: Sj14-3-3, 克隆抗体, 间接免疫荧光, 定位

Abstract:  Objective To study the localization of the signaling protein 14-3-3 of Schistosoma japonicum (Sj14-3-3)in the parasite. Methods Cercariae were collected from the infected Oncomelania hupensis for the infection of rabbits. Fifteen-day-old schistosomula and adult worms obtained from infected rabbits 15 and 42 days post-infection were used for frozen sections and indirect immunofluorescence staining with monoclonal antibody to rSj14-3-3. Results The results showed that the Sj14-3-3 distributed mainly in the tegument, subtegument, muscle, and parenchyma of both adult worms and 15-day-old schistosomula. Conclusion The wide distribution and large sites of Sj14-3-3 in the parasite were clearly demonstrated, which established a significant clue for further studies of biologic actions and application of 14-3-3 protein.

Key words: Schistosoma japonicum Sj14-3-3, monoclonal antibody, indirect immunofluorescence, localization