中国寄生虫学与寄生虫病杂志 ›› 2008, Vol. 26 ›› Issue (2): 8-118.

• 实验研究 • 上一篇    下一篇

重组日本血吸虫Sj16蛋白调节宿主炎症反应的实验研究

孙希1,2,周何军1,2,吕志跃1,2,张双民1,2,胡少敏3,郑焕钦1,2,冯明钊3,吴忠道1,2 *   

  1. 1 中山大学中山医学院寄生虫学教研室,广州 510089; 2 中山大学热带病防治教育部重点实验室,广州 510089; 3 香港中文大学生物系,香港 730030
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2008-04-30 发布日期:2008-04-30
  • 通讯作者: 吴忠道

Studies on Immunomodulation Effect of Recombinant Sj16 from Schistosoma japonicum on Inflammation Response of Host

SUN Xi1,2,ZHOU He-jun1,2,LV Zhi-yue1,2,ZHANG Shuang-min1,2,HU Shao-min3,ZHENG Huan-qin1,2,FENG Ming-zhao3,WU Zhong-dao1,2 *   

  1. 1 Department of Parasitology,Zhongshan School of Medicine,Sun Yat-sen University,Guangzhou 510089,China;2 Key Laboratory for Tropical Disease Control(Sun Yat-sen University),the Ministry of Education,Guangzhou 510089,China;3 Department of Biology,the Chinese University of Hong Kong,Hong Kong 730030,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2008-04-30 Published:2008-04-30
  • Contact: WU Zhong-dao

摘要: 目的 评价日本血吸虫重组蛋白(reSj16)调节宿主炎症反应的效果。方法 在大肠埃希菌中对重组pGEX-4T-1-Sj16基因进行原核表达并纯化重组蛋白。56只昆明小鼠随机分为7组(每组8只),其中5个实验组,所用reSj16蛋白剂量分别为0.1、0.5、1.0、5.0和10.0 μg/kg;并设地塞米松(5.0 μg/kg)和生理盐水(0.1 ml/只)对照组。进行小鼠耳廓肿胀和毛细血管通透性实验,观察reSj16蛋白对二甲苯致小鼠耳廓肿胀作用和毛细血管通透性改变的影响。56只SD大鼠进行角叉菜胶所致大鼠足跖肿胀实验,56只昆明小鼠进行实验性腹膜炎小鼠腹腔毛细血管通透性改变实验,观察reSj16调节宿主炎症反应效果。 结果 0.1、0.5、1.0、5.0和10.0 μg/kg的reSj16蛋白均可明显减轻二甲苯所致小鼠耳廓肿胀和毛细血管通透性增加,抑制角叉菜胶所致大鼠足跖肿胀,明显抑制实验性腹膜炎小鼠腹腔毛细血管通透性增高,且具有一定的剂量依赖关系。1.0、5.0和10.0 μg/kg的reSj16蛋白组与对照组相比,差异具有统计学意义。 结论 Sj16具有明显的调节宿主炎症反应的作用。

关键词: 日本血吸虫, reSj16, 抗炎, 角叉菜胶

Abstract: Objective To study the immunomodulation effect of the recombinationt Sj16 from Schistosoma japonicum(reSj16) on inflammation response of host. Methods reSj16 expressed in pGEX-4T-1 was purified by GST purification kit and detected by sodium dodecyl sulfate-polyacrylamide gel electropheresis (SDS-PAGE) and mass spectra (MS). The immunomodulation effect of reSj16 was observed by means of dimethylbenzene inducing mouse ear edema model, carrageenan inducing rat voix pedis swell model and acetic acid inducing mouse experiment peritonitis model. Results The soluble protein of reSj16 was obtained and identified by SDS-PAGE and MS. reSj16 1.0,5.0,10.0 μg/kg evidently suppressed the mouse ear edema induced by dimethyl-benzene, significantly mitigated the rat voix pedis swelling induced by carrageenan, and remarkably suppressed the increase of the capillary permeability of abdominal cavity in experiment peritonitis mouse model. Conclusion The results further prove that Sj16 may be a potential immunosuppressive molecule and may have a notable effect on immunomo-dulation.

Key words: Schistosoma japonicum, reSj16, immunomodulation, carrageenan