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[Metabolic characteristics and kinetic model of recombinant CHO cells in serum-free suspension batch culture].

Authors
  • Liu, Xingmao
  • Liu, Hong
  • Ye, Lingling
  • Li, Shichong
  • Wu, Benchuan
  • Wang, Haitao
  • Xie, Jing
  • Chen, Zhaolie
Type
Published Article
Journal
Sheng wu gong cheng xue bao = Chinese journal of biotechnology
Publication Date
Jan 01, 2010
Volume
26
Issue
1
Pages
85–92
Identifiers
PMID: 20353097
Source
Medline
License
Unknown

Abstract

By using the cell density, cell viability, Pro-UK activity, specific consumption rate of glucose (q(glc)), specific production rate of lactate (q(lac)), yield of lactate to glucose (Y(lac/glc)) and as the evaluation indexes, the growth and metabolism characteristics of pro-urokinase (Pro-UK) expressing CHO cells in serum-free suspension batch culture were examined and compared to those in serum-containing suspension batch culture. We observed hardly differences in growth and metabolism characteristics between the CHO cell populations grown in serum-free suspension batch culture and serum-containing suspension batch culture. The optimal mathematical model parameters for the CHO cells grown in suspension batch culture were obtained by non-linear programming of data representing the growth, substrate consumption and product formation of the CHO cells during logarithmic growth phase using MATLAB software, and the kinetic model of the cell growth and metabolism in serum-free culture were established.

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