优化触角流过以实现高产量,可扩展的腺相关病毒下游处理
Sara Cardoso1, Franziska Bollmann1, Alexander Tappe1
1Sartorius Stedim Biotech GmbH, August-Spindler-Straße 11, 37079 Göttingen, Germany.
Membranes
|February 26, 2026
概括
这项研究评估了两种接触式流量过 (TFF) 磁带类型,用于腺相关病毒 (AAV) 净化. 电子屏幕录音带提供了更快的处理和更好的杂质去除,而ECO屏幕允许更温和的条件,这两者都证明了AAV下游处理的可扩展性和可重复性.
科学领域:
- 生物技术是生物技术.
- 生物加工是一种生物加工.
- 基因治疗制造业 基因治疗制造业
背景情况:
- 基因相关病毒 (AAV) 生产对于推进基因疗法至关重要.
- 有效的下游加工,特别是使用触流过 (TFF) 的超过/透过 (UF 赤道DF),对于高质量的AAV制剂至关重要.
- TFF过程开发需要仔细选择膜特性和优化操作参数,以确保病毒功能和过程效率.
研究的目的:
- 评估和比较两种Sartocon® Hydrosart® TFF磁带架构 (ECO-Screen和E-Screen) 对于AAV8澄清酸盐UF.
- 通过流量表征和小规模评估来定义磁带特定的操作区域.
- 为卡塞特选择提供定量基础,并为AAV净化建立可扩展的UF水管DF框架.
主要方法:
- 对ECO-Screen和E-Screen TFF录音带的流量表征和受控的小规模评估.
- 病毒基因组保留,宿主细胞蛋白和DNA去除的评估.
- 复制性评估和10倍规模的UF水DF工艺研究.
主要成果:
- 无论是E-Screen还是ECO-Screen的录音带都显示出病毒基因组保留率很高.
- 电子屏幕实现了更快的处理和优异的移除宿主细胞蛋白和DNA.
- 通过ECO-Screen,在减少的速率 (较低的剪切率) 下实现了高效的运行,两种格式都显示出最小的运行到运行变化和可预测的扩展.
结论:
- 该研究提供了TFF磁带在AAV净化中的性能量的定量比较.
- 这两种卡塞特类型都提供了可行的选择,取决于具体的工艺需求 (速度与剪切灵敏度).
- 这些发现支持合理选择TFF录音带,并为AAV制造建立一个可扩展的UF的框架.
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