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Volume 26 Issue 2
Nov.  2011
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Article Contents
CHE Yong-liang, SHI Yun-tong, ZHUANG Xiang-sheng, CHEN Shao-ying, WANG Long-bai, WEI Hong, CHEN Ru-jing, WU Xue-min, ZHOU Lun-jiang. Effect of Porcine circovirus Type 2 ORF2 Gene Expression in PcDNA3.1 for Vacination[J]. Fujian Journal of Agricultural Sciences, 2011, 26(2): 166-169.
Citation: CHE Yong-liang, SHI Yun-tong, ZHUANG Xiang-sheng, CHEN Shao-ying, WANG Long-bai, WEI Hong, CHEN Ru-jing, WU Xue-min, ZHOU Lun-jiang. Effect of Porcine circovirus Type 2 ORF2 Gene Expression in PcDNA3.1 for Vacination[J]. Fujian Journal of Agricultural Sciences, 2011, 26(2): 166-169.

Effect of Porcine circovirus Type 2 ORF2 Gene Expression in PcDNA3.1 for Vacination

  • Received Date: 2011-01-28
  • Rev Recd Date: 2011-03-11
  • Publish Date: 2011-04-15
  • This study was to develop ORF2 DNA vaccine against PCV2 and evaluate its immunity effect and safety.[Method] A pair of specific primers was synthesized to amplify the PCV2-ORF2 by PCR.PCV2-ORF2 was cloned into T vector and named T-ORF2.T-ORF2 and PcDNA3.1 were double digested under same conditions,connected by using T4 DNA ligase,and cloned.The positive recombinant plasmids(DNA vaccine) were confirmed by double digestion and named PcDNA3.1-ORF2.The DNA vaccine was transfected in Vero cells with lipofectamine 2000 for RT-PCR analysis.At the same time,100 μg of the vaccine was intramuscular injected into Balb/c mice at two-week intervals.On the 14th and 28th day after the first vaccination,serums were collected for ELISA test.On the 56th day,the genomes of parenchymal organ including heart,liver,spleen,lung and kidney of the vaccinated mice were extracted for PCR amplification to determine safety of the DNA vaccine.[Result] The results indicated that the DNA vaccine was successfully made,PCV2-ORF2 gene was expressed in Vero cells in vitro,and the vaccine did induce immune response in mice.The safety test showed that ORF2 genes could not be integrated into the mice chromosome.[Conclusion] The resultant DNA vaccine successfully induced immune response in mice and was confirmed to be safe.
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    MAHE D,BLANCHARD P,TRUONG C,et al.Differential recognition of ORF2 protein from type 1 and type 2 porcine circoviruses and identification of immunorelevant epitopes[J].JGenVirol,2000,81 (7):1815-1824.
    [2]
    孟松树,张绍杰,童光志.鸡传染性喉气管炎病毒DNA疫苗免疫力效果观察[J].中国预防兽医学报,2000,22(3):179-181.
    [3]
    步志高,赵晓岩,刘长军,等.DNA免疫诱导SPF鸡对传染性法氏囊病的免疫保护反应[J].中国预防兽医学报,2000,22(5):325-328.
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