中国寄生虫学与寄生虫病杂志 ›› 2008, Vol. 26 ›› Issue (2): 10-127.

• 实验研究 • 上一篇    下一篇

日本血吸虫SjPP基因重组杆状病毒的构建和在昆虫细胞中的表达

姚利晓1,3,陶丽红1,杨冠珍2,吴祥甫2,蔡幼民1,林矫矫1 *   

  1. 1 中国农业科学院上海兽医研究所,农业部动物寄生虫学重点开放实验室,上海动物生物技术研究中心,上海 200232; 2 中国科学院上海生命科学研究院上海生化细胞所,上海 200231;3 西南大学柑桔研究所,重庆 400712
  • 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: 林矫矫

Construction and Expression of Recombinant Baculovirus with Schistosoma japonicum SjPP Gene

YAO Li-xiao1,3, TAO Li-hong1, YANG Guan-zhen2, WU Xiang-fu2, CAI You-min1, LIN Jiao-jiao1 *   

  1. 1 Shanghai Research Center for Animal Biotechnology/Key Laboratory of Animal Parasitology of the Ministry of Agriculture/ Shanghai Institute of Veterinary Research,Chinese Academy of Agricultural Sciences,Shanghai 200232,China;2 Institute of Biochemistry and Cell Biology,Shanghai Institutes for Biological Sciences,Chinese Academy of Sciences,Shanghai 200231,China;3 Citrus Research Institute, Southwest University, Chongqing 400712,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2008-04-30 Published:2008-04-30
  • Contact: LIN Jiao-jiao

摘要: 目的 在昆虫细胞中表达获得可溶性的日本血吸虫SjPP重组蛋白。 方法 提取日本血吸虫成虫总RNA,通过RT-PCR扩增出SjPP基因的编码区序列,将其定向克隆到供体质粒pFastBac HT-B中,构建重组杆状病毒供体质粒pFastBac-SjPP,转化入大肠埃希菌DH10Bac进行转座,提取重组杆粒Bacmid-SjPP,用阳离子脂质体法转染粉纹夜蛾(TN5B1-4)细胞。利用十二烷基硫酸钠-聚丙烯酰胺凝胶电泳(SDS-PAGE)和蛋白质印迹(Western blotting)分析重组蛋白表达情况。 结果 构建了含日本血吸虫SjPP基因的重组杆粒Bacmid-SjPP,转染TN5B1-4细胞后,获得有感染力的重组杆状病毒,并在TN5B1-4细胞中成功表达SjPP蛋白。该重组蛋白可被抗SjPP蛋白的兔血清识别。 结论 成功构建SjPP基因重组杆状病毒,并在TN5B1-4细胞中表达,该蛋白具有良好的抗原性。

关键词: 日本血吸虫, SjPP, Bac-to-Bac杆状病毒表达系统

Abstract: Objective To express the soluble recombinant Schistosoma japonicum SjPP proteins in TN5B1-4 cells. Methods The total RNA was extracted from adult worms of Schistosoma japonicum. The whole coding sequence of SjPP gene was synthesized by RT-PCR and cloned into donor plasmid. The recombinant donor pFastBac-SjPP was transformed into E.coli DH10Bac forming Bacmid-SjPP which was transfected into insect cell with cational lipofectin. The fusion protein SjPP was analyzed with SDS-PAGE and Western blotting. Results The infective recombinant baculovirus Bacmid-SjPP was obtained and SjPP protein was expressed in insect cells. Conclusion The recombinant protein SjPP has been expressed in insect TN5B1-4 cells with proper antigenicity.

Key words: Schistosoma japonicum, SjPP, Bac-to-Bac Baculovirus Expression Vector System