构建一个表达的人类KREMEN1的Vero细胞系,用于开发CVA6疫苗
Dongqing Zhang1,2, Yuxiang Zou1,2, Jiaying Wu1,2
1State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, School of Life Sciences, School of Public Health, Xiamen University, Xiamen, 361102, PR China.
Virology journal
|January 17, 2025
概括
一个稳定过度表达KREMEN1 (KRM1) 的新的Vero细胞系有效地支持Coxsackievirus A6 (CVA6) 复制. 这一进展有助于开发用于手足口病 (HFMD) 的CVA6疫苗.
科学领域:
- 病毒学 病毒学
- 疫苗学 疫苗学 疫苗学
- 细胞生物学 细胞生物学
背景情况:
- 考克萨基病毒A6 (CVA6) 是全球手足口病 (HFMD) 爆发的重要原因之一.
- 目前缺乏CVA6疫苗对疾病控制构成了挑战.
- 维罗细胞被广泛用于疫苗生产,但很少支持CVA6的传播.
研究的目的:
- 开发一种强大的细胞培养系统,用于CVA6的传播.
- 为增强CVA6复制而设计Vero细胞.
- 评估工程细胞在CVA6疫苗开发中的潜力.
主要方法:
- 使用晶状病毒系统构建稳定过度表达KREMEN1 (KRM1) 的Vero细胞系.
- 在工程Vero-KRM1_#11细胞系中评估CVA6的传播效率.
- 在工程细胞中产生的CVA6的免疫性和保护功效的评估.
主要成果:
- 维罗-KRM1_#11细胞系有效地支持了CVA6感染和传播.
- 在Vero-KRM1_#11细胞中传播的CVA6达到与RD细胞 (约. 10^7 TCID50/mL).) 的情况.
- 纯化的CVA6诱导了类似的IgG和中和抗体反应,而抗血清剂在小鼠中提供了100%的保护.
结论:
- 表达KRM1的Vero细胞为CVA6传播提供了一个可行的平台.
- 工程细胞促进了用于疫苗开发的CVA6的产生.
- 这种方法有可能创造CVA6或多价HFMD疫苗.
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