, Volume 32, Issue 3, pp 280-284

High cell density perfusion culture of mouse-human hybridomas

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Summary

Five mouse-human hybridomas, H2, H3, V1, V2 and V6 cells secreting anti-virus human monoclonal immunoglobulin G (IgG) were cultured in serum-free media at high density in a settling perfusion culture vessel with an inner cell sedimentation zone. The H2, H3 and V6 cells reached a density of 107 cells/ml in 0.5% (w/v) BSA-ITES-eRDF (see Materials and methods). The H2 cells reached only 6.8 × 106 cells/ml in the absence of bovine serum albumin (BSA), but the addition of 0.2% (w/v) Pluronic F68 increased the maximum cell density to 1.1 × 107 cells/ml, which was the same level as in BSA including medium. On the other hand, Pluronic F68 showed no stimulative effect on the growth of H2 cells in static culture. Pluronic F68 also increased the maximum cell density of V2 cells from 4.6 × 106 cells/ml to 6.9 × 106 cells/ml even in the presence of 0.5% (w/v) BSA.