Cell culture process

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 5/00 (2006.01) C07K 14/505 (2006.01) C12P 21/02 (2006.01)

Patent

CA 2466881

The invention provides a method for producing a recombinant polypeptide of interest which method comprises: (a) providing a host cell which comprises a nucleotide sequence which encodes 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 osmolatity regulator, a buffer, an energy source, at least one amino acid, a lipid source or precursor, a source of iron, non-ferrous metal ions and optionally one or more vitamins and cofactors; and (ii) does not contain any full-length polypeptides; and (c) culturing the host cell in the culture medium under conditions that allow for expression of the recombinant polypeptide of interest.

L'invention concerne un procédé de production d'un polypeptide recombiné d'intérêt lequel procédé consiste: (a) à obtenir une cellule hôte qui contient une séquence nucléotidique laquelle code le polypeptide recombiné d'intérêt et dirige l'expression du polypeptide recombiné d'intérêt dans la cellule hôte; (b) à produire un milieu de culture exempt de sérum lequel contient (i) de l'eau, une peptone dérivée de plante, un régulateur d'osmolalité, un tampon, une source d'énergie, au moins un acide aminé, une source ou un précurseur de lipide, une source de fer, des ions métal non ferreux et facultativement une ou plusieurs vitamines et un ou plusieurs cofacteurs; et (ii) il ne contient aucun polypeptide de longueur totale; et (c) à mettre en culture la cellule hôte dans le milieu de culture dans des conditions permettant l'expression du polypeptide recombiné d'intérêt.

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