Abstract：
:The purpose of this research was to compare three bioreactor systems for the pilot-scale production of monoclonal antibodies (MAbs). We needed to produce gram quantities of murine MAbs against human prostatic acid phosphatase for use in fragmentation, radiolabeling and in vivo radio-imaging studies. The stable hybridoma cell line secreting IgG1 antibodies was chosen for production. Of the available bioreactor systems, we chose to test an agitating 30-liter bioreactor in repeated batch mode, a ceramic-matrix bioreactor in both repeated batch and continuous perfusion modes and a hollow-fiber bioreactor in continuous perfusion mode. The highest cultured MAb yield, 151 +/- 126 mg/day (mean +/- SD, n = 22), was achieved in the 30-liter bioreactor in repeated batch mode with the MAb being harvested in a large volume of medium, giving a reactor productivity of 4.3 +/ 3.4 mg/liter/day (mean +/- SD, n = 22). The most concentrated MAb was harvested from the continuously perfused hollow-fiber bioreactor, which had the highest reactor productivity, 307 +/ 142 mg/liter/day (mean +/- SD, n = 47) and an average rate of MAb production of 55.3 +/- 25.7 mg/day (mean +/- SD, n = 47). Taking the use of serum into consideration, the cost of MAb production was lowest in the continuously fed and harvested ceramic-matrix and hollow-fiber cell culture systems. A compact blood glucose meter proved to be a novel and suitable device for the rapid monitoring of glucose concentrations in hybridoma cultures.
journal_name
Biotechniquesjournal_title
BioTechniquesauthors
Kurkela R,Fraune E,Vihko Psubject
Has Abstractpub_date
1993-10-01 00:00:00pages
674-83issue
4eissn
0736-6205issn
1940-9818journal_volume
15pub_type
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