Quail 细胞的高细胞密度 perfusion 过程产生瘤性 rVSV-NDV
Lennart Jacobtorweihe1, Sven Göbel1, Markus Wolschek2
1Bioprocess Engineering Max Planck Institute For Dynamics of Complex Technical Systems Magdeburg Germany.
Engineering in life sciences
|July 15, 2025
概括
像rVSV-NDV这样的瘤解毒病毒的高效生产对于癌症治疗至关重要. 使用CCX.E10细胞的输液培养显著提高了病毒产量,克服了临床转化制造瓶.
科学领域:
- 瘤治疗性病毒疗法
- 生物工艺工程是生物工艺工程.
- 癌症治疗 治疗 癌症治疗
背景情况:
- 瘤病毒在癌症治疗方面表现有前途,rVSV-NDV证明了它的有效性.
- 传染性病毒的高效生产对于病毒疗法至关重要,但目前的方法面临着挑战.
- 符合良好制造实践 (GMP) 的CCX.E10细胞是rVSV-NDV的潜在高位生产者.
研究的目的:
- 在 perfusion 培养系统中使用 CCX.E10 细胞优化 rVSV-NDV 的产生.
- 评估半 perfusion 和全 perfusion 过程在高密度细胞培养和病毒生产中的有效性.
- 评估触流深度过 (TFDF) 对于细胞保留和持续病毒收集的性能.
主要方法:
- 在半 perfusion 培养物中测试来自的 CCX.E10 细胞,使用各种介质和细胞密度.
- 在3L生物反应器中实施全 perfusion 过程,使用TFDF装置进行细胞保留.
- 使用集成的深度过器 (2-5微米孔径) 进行有效的细胞保留和持续的病毒采集.
主要成果:
- 优化的 perfusion 过程实现了可活细胞度 (VCC) 高达 20.6 × 106 细胞/毫升,细胞保留率高达 99.9%.
- 获得了1.33 × 109 TCID50/mL传染性rVSV-NDV的产生.
- 与对照批处理过程相比,观察到时空产量 (STY) 增加了5倍.
结论:
- 与传统的批量方法相比,输液培养显著提高了rVSV-NDV生产产量.
- 符合GMP的CCX.E10细胞与 perfusion生物反应器相结合,为瘤性病毒制造提供了一个可扩展的解决方案.
- 这种优化的生物工艺解决了关键的生产瓶,促进了临床转化和瘤性病毒免疫疗法的更广泛的可访问性.
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