Construction and Immunogenicity of DNA Vaccines Encoding Fusion Protein of Porcine IFN-lambda 1 and GP5 Gene of Porcine Reproductive and Respiratory Syndrome Virus

文献类型： 外文期刊

第一作者： Du, Luping

作者： Du, Luping;Zhang, Haibin;Huang, Kehe;Du, Luping;Li, Bin;He, Kongwang;Du, Luping;Li, Bin;He, Kongwang;Du, Luping;Li, Bin;He, Kongwang;Li, Bin;He, Kongwang;Xiao, Shaobo

作者机构：

期刊名称：BIOMED RESEARCH INTERNATIONAL （ 影响因子：3.411； 五年影响因子：3.62 ）

ISSN： 2314-6133

年卷期： 2013 年

页码：

收录情况： SCI

摘要： Porcine reproductive and respiratory syndrome virus (PRRSV) has been mainly responsible for the catastrophic economic losses in pig industry worldwide. The commercial vaccines only provide a limited protection against PRRSV infection. Thus, the focus and direction is to develop safer and more effective vaccines in the research field of PRRS. The immune modulators are being considered to enhance the effectiveness of PRRSV vaccines. IFN-lambda 1 belongs to type III interferon, a new interferon family. IFN-lambda 1 is an important cytokine with multiple functions in innate and acquired immunity. In this study, porcine IFN-lambda 1 (PoIFN-lambda 1) was evaluated for its adjuvant effects on the immunity of a DNA vaccine carrying the GP5 gene of PRRSV. Groups of mice were immunized twice at 2-week interval with 100 mu g of the plasmid DNA vaccine pcDNA3.1-SynORF5, pcDNA3.1-PoIFN-lambda 1-SynORF5, and the blank vector pcDNA3.1, respectively. The results showed that pcDNA3.1-PoIFN-lambda 1-SynORF5 can significantly enhance GP5-specific ELISA antibody, PRRSV-specific neutralizing antibody, IFN-gamma level, and lymphocyte proliferation rather than the responses induced by pcDNA3.1-SynORF5. Therefore, type III interferon PoIFN-lambda 1 could enhance the immune responses of DNA vaccine of PRRSV, highlighting the potential value of PoIFN-lambda 1 as a molecular adjuvant in the prevention of PRRSV infection.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序