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装饰着病毒样颗粒 (VLP) 的高免疫性

Jeong In Yang¹, Dagoberto Sepúlveda¹, Irina Vardia¹

¹National Institute of Aquatic Resources, Technical University of Denmark, Kongens Lyngby, Denmark.

Frontiers in immunology

|June 7, 2023

概括

研究人员开发了一种使用VapA抗原的新型病毒样颗粒 (VLP) 疫苗,用于对抗沙门类动物中的Aeromonas杀鱼虫感染. 这种复合疫苗提供了与传统方法相比的保护,并有可能减少副作用.

科学领域:

水产养殖是水产养殖的一种方式.
兽医免疫学兽医免疫学
细菌病原体的产生

背景情况:

沙龙杀虫剂Aeromonas salmonicida在鱼类水产养殖中由于菌病而造成重大经济损失.
目前的非活化疫苗存在局限性,包括炎症副作用和对某些物种的不完全保护.
需要更安全,更有效的针对A. salmonicida的疫苗.

研究的目的:

开发和评估一种基于与VapA装饰的病毒样颗粒 (VLP) 的复合疫苗,用于控制A. salmonicida感染.
评估VapA-VLP疫苗在彩虹鱼中产生的疗效和免疫反应.

主要方法:

使用鱼类诺达病毒 (RGNNV) 或Acinetobacter菌体AP205囊蛋白构建了病毒样颗粒 (VLP).
使用SpyTag/SpyCatcher技术将VapA蛋白与VLP融合在一起.
彩虹鱼用VapA-VLP疫苗进行免疫接种,然后用A. salmonicida进行挑战.

主要成果:

VapA-VLP疫苗的保护程度与基于细菌素的疫苗相美.
接种疫苗的鱼类表现出强烈的VapA特异性抗体反应.
这项研究提供了基于VLP的疫苗接种对鱼的细菌病原体的第一个证据.

结论:

抗原装饰的VLP代表了水产养殖中的细菌疾病的有希望的替代疫苗策略.
在鱼养殖中,VapA-VLP疫苗显示出有效和可能更安全的疾病控制潜力.
进一步的研究可以优化VLP疫苗平台,以便在鱼类健康方面得到更广泛的应用.

关键词:

A. 杀鱼类的杀虫剂类似病毒的粒子 (VLP)水产养殖的水产养殖鱼类疾病鱼类疾病这种的病是发的.这是一种重组疫苗疫苗.

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