针对Streptococcus suis感染的亚单位疫苗开发的十年进步和未来前景
Lihua Fang1,2, Jie Ning1
1Department of Endocrinology, Shenzhen Longhua District Central Hospital, Shenzhen, Guangdong, China.
Frontiers in immunology
|October 6, 2025
概括
针对Streptococcus suis (SS) 的亚单元疫苗显示出希望,在动物模型中提供高达100%的SS血清型2的保护. 未来的研究重点是保护抗原和传递系统,以获得对这种动物感染病原体的广泛,持久的免疫力.
科学领域:
- 兽医微生物学 兽医微生物学
- 免疫学 免疫学 免疫学
- 疫苗开发 疫苗开发
背景情况:
- 瑞士菌 (Streptococcus suis,SS),特别是2型血清 (SS2),是影响猪和人类健康的主要动物感染病原体.
- 在SS的高遗传多样性和抗生素耐药性对有效的疫苗设计提出了重大挑战.
- 亚单位疫苗策略的进步对于控制SS感染至关重要.
研究的目的:
- 在过去十年中,审查和综合Streptococcus suis亚单位疫苗设计的关键进展.
- 确定有前途的疫苗候选者和SS的交付平台.
- 为未来针对SS的合理疫苗开发提供基础.
主要方法:
- 对过去十年中SS亚单位疫苗研究的综合文献综述.
- 对候选疫苗的分析,包括单抗原 (如SaoA,Enolase) 和多抗原配方.
- 在小鼠和猪模型中评估免疫反应 (IgG,IgA标位) 和保护功效.
主要成果:
- 一些亚单元候选疫苗,包括ps-Lpp-SaoA,SaoA,IgA1蛋白酶,Enolase和多抗原配方,表现出强大的免疫反应.
- 在实验模型中,这些候选物质在致命的SS2挑战中提供了高达100%的保护.
- 对其他SS血清型的交叉保护观察到与某些抗原如SaoA和Enolase.
结论:
- 亚单位疫苗是控制Streptococcus suis感染的可行策略,在临床前模型中显示出高效率.
- 优化输送平台,辅助剂和识别保存的抗原对于开发广泛和持久的免疫力至关重要.
- 进一步对猪进行翻译验证对于SS疫苗的成功开发至关重要.
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