Abstract
Continuous cultivation of CW2 cells (a human colorectal adenocarcinoma tumor cell) using a hollow fiber bioreactor was investigated for the production of carcinoembryonic antigen (CEA) over 34 days. The CEA production rate increased with the increase in incubation time up to 20 days and was found to be approximately a constant value, 20 ng/cm2 day, after the incubation time of 20 days. The CEA production rate was known to vary in different cell lines. The CEA production rates were compared with those obtained in this study and in the literature using hollow fiber bioreactors. It was found that CW2 cells produced CEA moderately among those cell lines. The high cell density (9.1 × 106 cells/cm2) achieved in the hollow fiber bioreactor compared to the flask culture (4.0 × 105 cells/cm2) made it possible to obtain continuous high production of CEA over an extended time period.
Original language | English |
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Pages (from-to) | 204-211 |
Number of pages | 8 |
Journal | Sen'i Gakkaishi |
Volume | 54 |
Issue number | 4 |
DOIs | |
State | Published - Jan 1998 |