A KINETIC-ANALYSIS OF HYBRIDOMA GROWTH AND METABOLISM IN CONTINUOUS SUSPENSION-CULTURE ON SERUM-FREE MEDIUM

The steady-state metabolic parameters for a murine hybridoma cell line have been determined in continuous suspension culture over a wide range of dilution rates. Long-term adaption occurred over seven months in culture and resulted in lower glucose consumption rates, reduced lactate production, higher cell viability, and, consequently, growth rates more nearly matching the dilution rate. Antibody production rates decreased over the first two months and then remained stable for at least 75 days. The antibody production rate was not found to be growth associated. Steady-state amino acid uptake rates are presented for a wide range of growth rates.