ACTA AGRICULTURAE BOREALI-SINICA ›› 2016, Vol. 31 ›› Issue (2): 205-210. doi: 10.7668/hbnxb.2016.02.033

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Screening the Immune Enhancer of Porcine epidemic diarrhea virus Subunit Vaccine

CHEN Jin1,2, HUANG Chunjuan1,2, YU Xiaoming1,2, HOU Liting1,2, QIAO Xuwen1,2, ZHENG Qisheng1,2, HOU Jibo1,2   

  1. 1. Jiangsu Academy of Agricultural Sciences, National Research Center of and Technology Veterinary Biologicals Engineering, Nanjing 210014, China;
    2. Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
  • Received:2016-02-18 Published:2016-04-28

Abstract: This study successfully constructed pQZ-COE-LTB expression vector and expressed the soluble recombinant protein, which was chosen for PEDV subunit vaccine candidate.In order to enhance the immunogenicity of the PEDV subunit vaccine, we selected CVC1302 and CVC1303 as immune enhancer, combined with PEDV subunit vaccine.Immunize 4-week-old ICR mice, second immunize conducted after 14 d, then collected the 14, 21, 28, 55 d mouse serum after first immune.Agar diffusion test and ELISA kits of detection of serum IgG antibody levels, intestinal tissue sIgA levels were conducted.The results showed that PEDV subunit vaccine combined with CVC1303 immune enhancer group produced significantly higher levels of IgG and sIgA antibodies than CV777 inactivated vaccine positive control group, indicating CVC1303 immune enhancer can effectively enhance the immunogenicity of the PEDV subunit vaccine.

Key words: PEDV, COE, Immune enhancer, Immunogenicity

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Cite this article

CHEN Jin, HUANG Chunjuan, YU Xiaoming, HOU Liting, QIAO Xuwen, ZHENG Qisheng, HOU Jibo. Screening the Immune Enhancer of Porcine epidemic diarrhea virus Subunit Vaccine[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2016, 31(2): 205-210. doi: 10.7668/hbnxb.2016.02.033.

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