Peer-Reviewed Publication
Biotechnol Prog2023;39(3):e3329.January 1, 2023Journal Article

Depth filter material process interaction in the harvest of mammalian cells.

Maria Parau1, James Pullen2, Daniel G Bracewell1
1Department of Biochemical Engineering, University College London, London, UK.
2Research and Development, FUJIFILM Diosynth Biotechnologies (FDB), Billingham, UK.

Abstract

Upstream advances have led to increased mAb titers above 5 g/L in 14-day fed-batch cultures. This is accompanied by higher cell densities and process-related impurities such as DNA and Host Cell Protein (HCP), which have caused challenges for downstream operations. Depth filtration remains a popular choice for harvesting CHO cell culture, and there is interest in utilizing these to remove process-…

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