一个可扩展的无细胞制造平台,用于免疫原结合疫苗的两步生物生产
Derek A Wong1, Rochelle Aw1, Sophia W Hulbert2
1Department of Bioengineering, Stanford University, Stanford, California 94305, United States.
ACS synthetic biology
|November 19, 2025
概括
一个新的无细胞系统能够快速,分散地生产结合疫苗. 该平台实现了高产量和高效的糖化,加速了对细菌感染的疫苗的开发.
科学领域:
- 生物技术是生物技术.
- 疫苗学 疫苗学 疫苗学
- 合成生物学 合成生物学
背景情况:
- 分散的疫苗生产对于全球卫生安全至关重要.
- 无细胞基因表达系统为快速,按需的疫苗合成提供了潜力.
- 现有的无细胞方法在可扩展的联合疫苗生产中面临挑战,特别是产量和糖化.
研究的目的:
- 开发一个模块化,无细胞的平台,以高效合成和合疫苗的净化.
- 为了克服无细胞结合疫苗制造的产量和糖化限制.
- 为了能够快速地在使用点生产针对细菌病原体的疫苗.
主要方法:
- 开发了一种两步的无细胞方法,将蛋白质表达和体外糖化解离.
- 使用大肠杆菌O78和Streptococcus pneumoniae血清型4的抗原合成和净化蛋白质多糖合并物.
- 在临床前模型中评估产品的纯度,内毒素水平和免疫性.
主要成果:
- 达到了>85%的糖化效率和高达~450mg/L的糖蛋白产量.
- 在不到5天的时间内生产出联合疫苗候选物,纯度>87%和低内毒素水平.
- 在小鼠中证明了肺炎球菌结合体候选疫苗的免疫性,诱导了强大的IgG反应.
结论:
- 开发的无细胞平台促进了可扩展和高效的结合疫苗制造.
- 这项技术提升了分散的生产能力,以快速应对细菌威胁.
- 该平台对生产有效的结合疫苗来对抗新出现的传染病充满了希望.
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