Development and validation of a competitive ELISA based on virus-like particles of serotype Senecavirus A to detect serum antibodies

文献类型： 外文期刊

第一作者： Bai, Manyuan

作者： Bai, Manyuan;Wang, Rui;Sun, Shiqi;Zhang, Yun;Dong, Hu;Guo, Huichen;Bai, Manyuan;Wang, Rui;Sun, Shiqi;Zhang, Yun;Dong, Hu;Guo, Huichen;Guo, Huichen

作者机构：

关键词： Senecavirus A; Virus-like particles; Competitive ELISA

期刊名称：AMB EXPRESS （ 影响因子：3.298； 五年影响因子：3.427 ）

ISSN： 2191-0855

年卷期： 2021 年 11 卷 1 期

页码：

收录情况： SCI

摘要： Virus-like particles (VLPs) are high-priority antigens with highly ordered repetitive structures, which are similar to natural viral particles. We have developed a competitive enzyme-linked immunosorbent assay (cELISA) for detecting antibodies directed against Senecavirus A (SVA). Our assay utilizes SVA VLPs that were expressed and assembled in an E. coli expression system as the coating antigens. VLPs have better safety and immunogenicity than intact viral particles or peptides. The VLPs-based cELISA was used to test 342 serum samples collected from different pig farms, and the results showed that its specificity and sensitivity were 100% and 94%, respectively. The consistency rates of cELISA with the BIOSTONE AsurDx (TM) Senecavirus A (SVA) Antibody Test Kit and an indirect immunofluorescent assay were 90.0% and 94.2%, respectively. Therefore, this VLPs-based cELISA can be effectively and reliably used for the detection and discrimination of SVA infection in serum samples.

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