SCI和EI收录∣中国化工学会会刊

中国化学工程学报 ›› 2023, Vol. 55 ›› Issue (3): 230-235.DOI: 10.1016/j.cjche.2022.05.023

• Full Length Article • 上一篇    下一篇

UV/Vis-based process analytical technology to improve monoclonal antibody and host cell protein separation

Yu Kiat Lin, Yan-Na Sun, Yu Fan, Hui Yi Leong, Dong-Qiang Lin, Shan-Jing Yao   

  1. Key Laboratory of Biomass Chemical Engineering of Ministry of Education, Zhejiang Key Laboratory of Smart Biomaterials, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
  • 收稿日期:2022-03-24 修回日期:2022-05-10 出版日期:2023-03-28 发布日期:2023-06-03
  • 通讯作者: Shan-Jing Yao,E-mail:yaosj@zju.edu.cn
  • 基金资助:
    This work was supported by the National Key Research & Development Program of China (2021YFE0113300) and the National Natural Science Foundation of China (22078286 and 21878263). Dr. Yu Kiat Lin would like to thank Zhejiang University and the Talent-Introduction Program of China for the Postdoctoral Researcher for the financial support.

UV/Vis-based process analytical technology to improve monoclonal antibody and host cell protein separation

Yu Kiat Lin, Yan-Na Sun, Yu Fan, Hui Yi Leong, Dong-Qiang Lin, Shan-Jing Yao   

  1. Key Laboratory of Biomass Chemical Engineering of Ministry of Education, Zhejiang Key Laboratory of Smart Biomaterials, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
  • Received:2022-03-24 Revised:2022-05-10 Online:2023-03-28 Published:2023-06-03
  • Contact: Shan-Jing Yao,E-mail:yaosj@zju.edu.cn
  • Supported by:
    This work was supported by the National Key Research & Development Program of China (2021YFE0113300) and the National Natural Science Foundation of China (22078286 and 21878263). Dr. Yu Kiat Lin would like to thank Zhejiang University and the Talent-Introduction Program of China for the Postdoctoral Researcher for the financial support.

摘要: Process analytical technology (PAT) is gaining more interest in the biomanufacturing industry because of its potential to improve operational control and compliance through real-time quality assurance. Currently, biopharmaceutical producers mainly monitor chromatographic processes with ultraviolet/visible (UV/Vis) absorbance. However, this measurement has a very limited correlation with purity and quantity. The current study aims to determine the concentration of monoclonal antibody (mAb) and host cell proteins (HCPs) using a build-in UV/Vis monitoring during Protein A affinity chromatography and to optimize the separation conditions for high purity of mAb and minimizing the HCPs content. The eluate was analyzed through in-line UV/Vis at 280 and 410 nm, representing mAb and HCPs concentration, respectively. Each 0.1 column volume (CV) fraction of UV/Vis chromatogram peak area were calculated, and different separation conditions were then compared. The optimum conditions of mAb separation were found as 12 CV loading, elution at pH 3.5, and starting the collection at 0.5 CV point, resulting in high mAb recovery of 95.92% and additional removal of 49.98% of HCP comparing with whole elution pool. This study concluded that UV/Vis-based in-line monitoring at 280 and 410 nm showed a high potential to optimize and real-time control Protein A affinity chromatography for mAb purification from HCPs.

关键词: Affinity chromatography, Host cell protein, Monoclonal antibody, Process analytical technology, Spectroscopy

Abstract: Process analytical technology (PAT) is gaining more interest in the biomanufacturing industry because of its potential to improve operational control and compliance through real-time quality assurance. Currently, biopharmaceutical producers mainly monitor chromatographic processes with ultraviolet/visible (UV/Vis) absorbance. However, this measurement has a very limited correlation with purity and quantity. The current study aims to determine the concentration of monoclonal antibody (mAb) and host cell proteins (HCPs) using a build-in UV/Vis monitoring during Protein A affinity chromatography and to optimize the separation conditions for high purity of mAb and minimizing the HCPs content. The eluate was analyzed through in-line UV/Vis at 280 and 410 nm, representing mAb and HCPs concentration, respectively. Each 0.1 column volume (CV) fraction of UV/Vis chromatogram peak area were calculated, and different separation conditions were then compared. The optimum conditions of mAb separation were found as 12 CV loading, elution at pH 3.5, and starting the collection at 0.5 CV point, resulting in high mAb recovery of 95.92% and additional removal of 49.98% of HCP comparing with whole elution pool. This study concluded that UV/Vis-based in-line monitoring at 280 and 410 nm showed a high potential to optimize and real-time control Protein A affinity chromatography for mAb purification from HCPs.

Key words: Affinity chromatography, Host cell protein, Monoclonal antibody, Process analytical technology, Spectroscopy