使用ZZ-R 127衍生的FMDV非结构蛋白用于定性血清学的原生抗原西斑的开发,以告知DIVA工作流程
Fuat Özyörük1, Ünal Parlak2, Can Çokçalışkan2
1Faculty of Veterinary Medicine, Department of Virology, Harran University, 63200 Şanlıurfa, Türkiye.
Journal of virological methods
|February 8, 2026
概括
一种新的西方斑点测定方法使用来自口疫病毒 (FMDV) 的本地非结构性蛋白质来改善接种疫苗的动物的血清诊断,帮助区分受感染的和接种疫苗的动物 (DIVA) 策略.
科学领域:
- 兽医病毒学 兽医病毒学
- 免疫诊断 免疫诊断 免疫诊断 免疫诊断
- 分子生物学分子生物学
背景情况:
- 口疫病毒 (FMDV) 在全球范围内对牲畜构成重大威胁.
- 目前的诊断方法可能难以区分受感染者和接种疫苗的动物 (DIVA).
- 非结构蛋白 (NSP) 是DIVA战略的关键目标.
研究的目的:
- 开发和验证使用本地FMDVNSPs的西部斑点 (WB) 试验.
- 在DIVA框架内支持确认血清诊断.
- 在FMDV NSP中确定可靠的诊断目标.
主要方法:
- 从感染细胞溶解体 (血清型A,O,亚洲-1) 中生成本地FMDVNSP.
- 通过化SDS-PAGE来分离抗原,并使用重组蛋白和单克隆抗体 (MAbs) 进行验证.
- 使用多克隆牛血清进行测试,以确定活性NSP.
主要成果:
- 蛋白质2C,3D和~25.8kDa的3AB前体被确定为可靠的诊断标.
- 测试证明了与模拟感染的溶解体和阴性血清的特异性.
- 由于实质性的凝间变异性,优于进行定性应用.
结论:
- 使用本地NSP开发的WB测定适合作为二级诊断工具.
- 它可以帮助在疫苗接种的受疾病毒影响的人群中判断模两可的ELISA结果.
- 这个平台增强了DIVA对FMDV监测的策略.
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