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针对牛结核的候选载体疫苗的安全性和保护效率

Zhandos Abay^1,2, Ainur Nurpeisova¹, Kamshat Shorayeva¹

¹Research Institute for Biological Safety Problems, Guardeyskiy uts 080409, Kazakhstan.

|July 29, 2023

概括

一种表达M. bovis抗原的新型流感载体疫苗在小鼠中显示出对牛结核的完全保护. 这种无辅助剂的配方被证明是安全有效的,为动物健康提供了一个有希望的新策略.

科学领域:

兽医免疫学兽医免疫学
疫苗的研发工作正在进行中.
传染病研究传染病研究.

背景情况:

牛结核 (bTB) 仍然是一个重大的全球动物健康挑战.
目前对bTB的控制策略有限,需要新的疫苗方法.
基于载体的疫苗为有效提供抗原提供了一个有希望的平台.

研究的目的:

评估一种新的基于载体的针对牛结核病疫苗的安全性和保护效果.
评估辅助剂在疫苗性能中的作用.
为了确定疫苗对控制Mycobacterium bovis感染的潜力.

主要方法:

开发一种表达M. bovis抗原 (ESAT-6和TB10.4) 的流感载体疫苗.
用候选疫苗接种Balb/c小鼠的疫苗,有或没有Montanide Gel辅助剂.
通过生物识别分析评估疫苗安全性.
通过挑战对毒性M. bovis-8菌株进行保护功效的评估,随后进行细菌学和组织学分析.

主要成果:

候选疫苗使用具有NS1突变的流感载体,对小鼠健康没有任何不良影响.
没有辅助剂的疫苗配方提供了对M. bovis-8挑战的完整保护.
细菌学和组织学数据支持观察到的保护疗效.

结论:

在小鼠模型中,表达M. bovis抗原的无辅助剂载体疫苗是安全的,并且非常有效.
这种疫苗代表了对控制牛结核的有希望的候选人.
需要进一步的研究来探索其在牛群中的应用.

关键词:

牛结核是牛结核的一种疾病.组织学组织学流感载体的流感载体是什么保护性有效性保护性有效性在安全方面,安全是安全的.

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