期刊
JOURNAL OF BIOSCIENCE AND BIOENGINEERING
卷 109, 期 3, 页码 274-280出版社
SOC BIOSCIENCE BIOENGINEERING JAPAN
DOI: 10.1016/j.jbiosc.2009.09.044
关键词
Recombinant CHO cell; Monoclonal antibody; HM1.24 antigen; Scaled-down cell culture
资金
- Chugai
Pharmaceutical manufacturing plants can be operated continuously for several months. It is therefore important to use cells with long-term stability for the production of active ingredients. We investigated the reliability and long-term stability of an antibody-producing cell line. A recombinant Chinese hamster ovary (CHO) cell line was cultivated in spinner flasks and reactors, including a practical production-scale reactor (1600 L), for 109 days to produce monoclonal antibodies against the HM1.24 antigen. During cultivation, the cells remained stable and there was an increase in the rate of cell proliferation, yielding viable cells at high density. A decrease in cell-specific productivity was associated with this increase in the rate of cell proliferation. The cells were genetically stable and other measures of cellular function remained consistent throughout the cultivation period. (C) 2009. The Society for Biotechnology, Japan. All rights reserved.
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