›› 2010, Vol. 37 ›› Issue (9): 62-66.

• 生物技术 • 上一篇    下一篇

猪圆环病毒2型ORF2和猪繁殖与呼吸综合征病毒ORF5重组杆状病毒疫苗的研究

张翔峰,何逸民,曹宗喜,孔留五,张得玉,秦宏阳,张桂红   

  1. (华南农业大学兽医学院,广州 510642)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2010-09-20 发布日期:2010-09-20
  • 通讯作者: 张桂红

The Study on Recombinant Baculovirus Vaccine of PCV2 ORF2 and PRRSV ORF5

ZHANG Xiang-feng, HE Yi-min, CAO Zong-xi, KONG Liu-wu, ZHANG De-yu,QIN Hong-yang, ZHANG Gui-hong   

  1. (College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2010-09-20 Published:2010-09-20
  • Contact: ZHANG Gui-hong

摘要: 参照GenBank上收录的基因组序列自行设计引物,分别扩增猪圆环病毒2型 ORF2和猪繁殖与呼吸综合征病毒ORF5。将外源基因分别插入经改造的杆状病毒穿梭载体pFVC,获得3种重组质粒pFVC-ORF2、pFVC-ORF5、pFVC-ORF5-ORF2。将重组质粒pFVC-ORF2、pFVC-ORF5、pFVC-ORF5-ORF2分别转入带有杆状病毒骨架的DH10BacTME.coli感受态细胞中。提取高质量的重组质粒rBacmid-ORF2、rBacmid-ORF5、rBacmid-ORF5-ORF2,将重组质粒转染Sf9细胞,获取重组病毒rAc-ORF2、rAc-ORF5、rAc-ORF5-ORF2。通过间接免疫荧光检测证实了外源基因正确表达。重组杆状病毒rAc-ORF2、rAc-ORF5、rAc-ORF5-ORF2对BALB/c小鼠的免疫试验结果显示,rAc-ORF2、rAc-ORF5、rAc-ORF5-ORF2均能够刺激小鼠机体产生免疫应答,产生抗体,并能持续较长时间。

关键词: 猪圆环病毒2型; 猪繁殖与呼吸综合征病毒; 重组杆状病毒; BALB/c小鼠免疫试验

Abstract: Several pairs of primers were designed according to the genome sequences, primers were designed to amplify PCV2 ORF2 and PRRSV ORF5. The foreign gene were inserted into the modified baculovirus shuttle vector pFVC, three kinds of recombinant plasmid pFVC-ORF2, pFVC-ORF5, pFVC-ORF5-ORF2 were successfully obtained, and the recombinant plasmid pFVC-ORF2, pFVC-ORF5, pFVC-ORF5-ORF2 were respectively transformed into DH10BacTM E. coli which contain baculovirus skeleton. Then high-quality recombinant rBacmid-ORF2, rBacmid-ORF5, rBacmid-ORF5-ORF2 were extracted, and transfect to Sf9 cell. Three kinds of recombinant baculovirus rAc-ORF2, rAc-ORF5, rAc-ORF5-ORF2 were successfully rescued.The foreign protein were detected by IFA. Recombinant baculovirus rAc-ORF2, rAc-ORF5, rAc-ORF5-ORF2 were injected into BALB/c mice for immunization experiments, results showed that rAc-ORF2, rAc-ORF5, rAc-ORF5-ORF2 were able to stimulate the body immune response, produce antibodies, and sustain for a long time.

Key words: porcine circovirus type 2 (PCV2); PRRSV; recombinant baculovirus; BALB/c mice immunization experiment

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