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对H5N1和H5N8基于细胞的疫苗的CombE-IDMS替代功效方法.

Matthew P Donohue1, Zhijun Cao1, Thomas Bowen1

  • 1Biopharmaceutical Product Development, CSL Seqirus, Holly Springs, NC 27540, USA.

Vaccines
|December 23, 2023
PubMed
概括

一种新的质谱测试方法,CombE-IDMS,为测试流感疫苗功效提供了更快的替代方法. 它在没有传统试剂的情况下准确测量疫苗强度,对季节性和流行性菌株有效.

关键词:
交替强度的强度可以变化.禽流感是禽流感的一种疾病.强制降解降解的强制性降解血凝素 (HA) 是一种同位素稀释质谱法 (IDMS) 是一种同位素稀释质谱法.

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科学领域:

  • 疫苗学 疫苗学 疫苗学
  • 分析化学 分析化学
  • 生物技术是生物技术.

背景情况:

  • 目前流感疫苗功效测试的标准是单射线免疫扩散 (SRID).
  • SRID依赖于校准的试剂 (抗菌素和抗原标准),这可能导致分发延迟,特别是在大流行期间.
  • 需要一个更快,可部署的替代方案,以确保及时提供疫苗.

研究的目的:

  • 评估CombE-IDMS试验作为一种潜在的替代SRID用于流感疫苗功效.
  • 为了证明CombE-IDMS对大流行前的H5N1和H5N8流感疫苗材料的适用性.
  • 评估CombE-IDMS在各种压力条件下的性能.

主要方法:

  • 使用基于质谱学的CombE-IDMS测定方法来测量疫苗的效力.
  • 该试验应用于季节性四价值细胞基疫苗材料 (aQIVc).
  • 强制降解研究 (热,pH,氧化,冷/解) 在H5N1和H5N8单价疫苗材料 (无助剂和辅助剂) 上进行.

主要成果:

  • 对于aQIVc材料,CombE-IDMS的结果与黄金标准的SRID方法有很好的相关性.
  • 该试验成功测量了无助剂和助剂的H5N1和H5N8疫苗材料的效力.
  • 在各种压力条件下,CombE-IDMS表现一致,反映了SRID的结果.

结论:

  • CombE-IDMS是一种可行的,快速的替代方案,用于评估流感疫苗的效力.
  • 该试验与传统试剂的独立性使其适合流行病准备.
  • 在季节性和流行性流感疫苗制造中,CombE-IDMS对常规使用非常有希望.