Abstract

The selection of a serum-free medium for a particular process of production using mammalian cells is a critical step for its success. In this study, seven commercially available serum-free media (EX-CELL, ISF-I, CD CHO, CDM4CHO, CHO-III-A, Octomed and HybridoMed) were evaluated and compared for cell growth and monoclonal antibody (mAb) production of a transfected CHO-K1 cell line. In the conditions assayed, EX-CELL and particularly CDM4CHO are the most recommended media for extended biopharmaceutical processes, on account of inducing superior levels of cell proliferation and mAb production, accentuated by a tendency to improve over time. Furthermore, the less positive results obtained with some media emphasize the importance and the impact of the correct medium selection.

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