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合理的mopox疫苗设计:单个和多组分蛋白质在小鼠中的免疫性和保护作用

Xueting Cheng¹, Yawei Wang¹, Baoying Huang¹

¹National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, Key Laboratory of Biosafety, National Health Commissions, National Institute for Viral Disease Control and Prevention, China CDC, Beijing, People's Republic of China.

Emerging microbes & infections

|March 19, 2025

概括

在开发下一代mpox病毒 (MPXV) 疫苗时,研究人员在小鼠中测试了多组分膜蛋白. A29/B6/M1组合疫苗显示出对MPXV和相关的正正病毒病毒的最佳保护效果.

科学领域:

病毒学病毒学
免疫学免疫学免疫学
疫苗开发疫苗开发

背景情况:

2022年全球波克斯病毒 (MPXV) 爆发需要先进的疫苗策略.
现有的疫苗需要改进,以获得更广泛的orthopoxvirus保护.

研究的目的:

评估单个和组合的MPXV膜蛋白的免疫性和保护功效.
引导开发一种针对mopox.com的新型复合子单位疫苗.

主要方法:

在BALB/c小鼠中,它们被免疫了以真核体表达的MPXV蛋白 (A35R,A29L,B6R,M1R) 单独和多组分组合.
疫苗的配方是使用Al ((OH) 3 + CpG寡氧核酸辅助剂.
试验小鼠受到疫苗病毒西部储备 (VACV-WR) 和微粒病毒 (ECTV) 的挑战.

主要成果:

多组分疫苗,特别是A29/B6/M1和A29/B6/M1/A35,提供了对VACV-WR的完全保护.
A29/B6/M1和A29/B6/M1/A35提供了对ECTV的完全保护,其中A29/B6/M1是最有效的.
所有疫苗都诱导了强大的抗原特异性IgG和细胞免疫力;中和活性各不相同,A29/B6/M1显示出显著的疗效.

结论:

A29/B6/M1亚单元疫苗显示出对MPXV和相关的正正病毒病毒的更高的保护效果.
中和抗体和特异性细胞免疫力在保护方面协同作用.
这些发现为下一代正病毒疫苗的免疫原优化提供了洞察力.

关键词:

脊髓灰质炎病毒脊髓灰质炎病毒交叉保护交叉保护免疫性免疫性免疫性莫波克斯病毒 (MPOX) 病毒多组分蛋白质疫苗的使用.

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