Cell culture process

摘要

A method for producing a recombinant polypeptide of interest is described to comprise the following steps: (a) providing a transformed eukaryotic host cell which comprises a nucleotide sequence which encodes the recombinant polypeptide of interest and which directs expression of the recombinant polypeptide of interest and which directs expression of the recombinant polypeptide of interest in the host cell; (b) providing a serum-free culture medium which comprises (i) water, a plant-derived peptone, an osmolality regulator, a buffer, an energy source, amino acids, a lipid source or precursor, a source of iron, non-ferrous metal ions and one or more vitamins and cofactors; and (ii) does not contain any full-length polypeptides; and (c) culturing the transformed eukaryotic host cell in the culture medium under conditions that allow for expression of the recombinant polypeptide of interest.