宿主细胞蛋白质网络作为蛋白质A染色学期间的新型共化机制
Sherin Panikulam1,2, Alexander Hanke3, Frieder Kroener3
1Institute of Pharma Technology, University of Applied Sciences Northwestern Switzerland, Muttenz, Switzerland.
Biotechnology and bioengineering
|March 8, 2024
概括
宿主细胞蛋白 (HCP) 是治疗性蛋白质制造中的杂质. 这项研究显示,医疗保健人员通过药物特异性相互作用和功能网络与治疗性蛋白质共享,有助于改进净化策略.
科学领域:
- 生物制药制造业 生物制药制造业
- 蛋白质净化 蛋白质净化
- 分析化学 分析化学
背景情况:
- 主细胞蛋白 (HCP) 是治疗性蛋白质生产中的关键过程相关杂质,特别是来自中国仓鼠卵巢 (CHO) 细胞的杂质.
- 蛋白A亲和染色体是Fc基蛋白的主要净化步骤,但HCP去除仍然是一个挑战.
- 对于HCP共同净化的现有假设包括直接的HCP-药物协会或从染色质结构中出.
研究的目的:
- 为了研究基于Fc的蛋白质的蛋白质A化物中HCP含量的异质性.
- 确定特定的医疗保健人员与治疗蛋白共同净化,并阐明共同净化机制.
- 提出HCP合作的新机制,以改善下游净化策略.
主要方法:
- 使用液体染色学-并联质谱法 (LC-MS/MS) 分析了23个基于Fc的蛋白质样本.
- 在蛋白质A溶解物中共同溶解的HCP的量化和识别.
- 跨不同化物和功能/蛋白质相互作用网络分析的HCP的相关性分析.
主要成果:
- 在不同基于Fc的蛋白质化物中观察到HCP配置文件的显著异质性.
- 大多数已识别的医疗保健工作者与不到三种治疗蛋白共同净化,这表明药物特异性相互作用.
- 十个特定的HCP被发现与50%以上的分析蛋白质共同净化,HCP经常在与蛋白质-蛋白质相互作用网络相关的功能组中共同除.
结论:
- 医疗人员的共同净化在很大程度上是药物特异性的,但可以涉及相互作用的蛋白质组.
- 功能性网络中的蛋白质与蛋白质相互作用代表了HCP共的额外机制.
- 研究结果为优化细胞系发育和提炼生物制药净化过程提供了洞察力.
关键词:
中国仓鼠的卵巢细胞.宿主细胞蛋白质是宿主细胞的蛋白质.质谱测量质谱测量质谱测量质谱测量质量测量质谱测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量这是一种单克隆抗体.蛋白质A是一种蛋白质A.蛋白质与蛋白质相互作用网络更多相关视频
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