高通量克隆选和上游流程优化用于重组治疗性的表达:生物类似特里巴化物 (PTH-34):一个案例研究
Santosh Ughade1,2, Mrunali Nandanwar1, Gauri Yoge1
1Chemical Engineering and Process Development Division, CSIR, National Chemical Laboratory, Pune, India.
Preparative biochemistry & biotechnology
|March 9, 2026
概括
这项研究优化了使用微发酵器和实验设计的生物类似特里巴化物生产. 在1-L生物反应器中优化条件产生了高生物质和纳入体,证明了可扩展的过程.
科学领域:
- 生物技术和生物加工
- 分子生物学分子生物学
- 代谢工程是代谢工程.
背景情况:
- 生物类似的特里巴化物生产需要高效的上游流程优化.
- 微发酵器平台为生物工艺开发提供高吞吐量选.
- 宿主细胞中的代谢应激会影响重组蛋白的表达.
研究的目的:
- 使用微发酵器优化上游过程,以实现生物类似特里巴化物的高吞吐量表达.
- 为了确定最佳的大肠杆菌 (大肠杆菌) 主体菌株,生长介质和诱导策略.
- 通过比较分析和扩展来验证优化过程的可扩展性和效率.
主要方法:
- 系统地调查主要上游参数,包括大肠杆菌宿主菌株,生长介质和诱导策略.
- 应用实验设计 (DoE) 方法来评估参数效应和相互作用.
- 对五种大肠杆菌菌株的评估:BL21 (DE3),Lemo 21TM (DE3),RosettaTM (DE3),OrigamiTM 2和Shuffle® T7 (DE3).这些菌株包括:
主要成果:
- 大肠杆菌BL21 (DE3) 和OrigamiTM 2显示出最高的生长率 (分别为0.529±0.05h-1和0.242±0.05h-1).
- Galactose诱导被确定为通过最大限度地减少代谢压力来增强 teriparatide 表达的最有效策略.
- 使用大肠杆菌BL21 (DE3) 的1L生物反应器进行扩展,实现了67.9 ± 1.0 g/L的生物质产量和12.0 ± 0.6 g/L的包含物体.
结论:
- 基于DOE的微发酵器方法是有效的优化上游流程的生物类似的teriparatide生产.
- 使用大肠杆菌BL21 (DE3) 和银河糖诱导的优化条件使成本高效且可扩展的生产成为可能.
- 微发酵器平台提供了一致和可扩展的结果,验证了其对生物过程开发的效率.
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