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开发一种针对PRV-1的新型病毒样颗粒基疫苗,适合DIVA策略

Claudia Galleguillos-Becerra¹, Matias Cardenas¹, Yesseny Vásquez-Martínez^1,2

¹Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago 9170022, Chile.

|December 31, 2025

概括

一种新型病毒样粒子 (VLP) 疫苗有效降低了鱼体内鱼体内鱼体内鱼体内鱼体内鱼体内鱼体内鱼体内鱼体内鱼体内的病毒载量. 一种修改后的VLP疫苗也使得疫苗接种者与受感染的鱼类有区别,有助于疾病监测.

科学领域:

水产养殖免疫学水产养殖免疫学
病毒病原发生的病毒病原体.
疫苗的研发工作正在进行中.

背景情况:

游泳池骨病毒1型 (PRV-1) 在鱼类中引起心脏和骨肌炎症 (HSMI).
由于PRV-1无法在体外培养,这阻碍了传统疫苗的开发.

研究的目的:

开发一种基于病毒样粒子 (VLP) 的新型疫苗来对抗PRV-1.
创建一个疫苗策略,允许区分受感染和接种疫苗的动物 (DIVA).

主要方法:

在昆虫细胞中共表达了6种PRV-1结构蛋白,使用baculovirus系统创建VLP.
用一个c-myc表位标签修改了s1蛋白质,以获得DIVA能力.
用PRV-1挑战大西洋鱼和彩虹鱼,以评估疫苗的有效性和血清学反应.

主要成果:

原生VLP疫苗 (VLP6n) 在大西洋鱼中显著降低了PRV-1病毒载量.
被c-myc标记的VLP疫苗 (VLP6c) 诱导了针对彩虹鱼c-myc表位的特定抗体.
这使得疫苗接种和自然感染的鱼类可以区分.

结论:

基于VLP的疫苗是控制鱼水产养殖中的PRV-1的一个有希望的策略.
与DIVA兼容的VLP疫苗支持PRV-1的血清监测计划.
这个平台推进了针对新出现的鱼类病原体的疫苗解决方案.

关键词:

游泳池的奥托雷病毒.这是一种VLP疫苗.在CMYC中,表现为形.

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