Glycolysis-inhibiting substances in cell culture

C - Chemistry – Metallurgy – 12 – N

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C12N 5/00 (2006.01) C12P 21/00 (2006.01)

Patent

CA 2666317

An improved system for large scale production of proteins and/or polypeptides in cell culture is provided. In accordance with the present invention, cells expressing the protein or polypeptide of interest are grown in media that comprise a glycolysis-inhibiting substance. Additionally and/or alternatively, cells expressing the protein or polypeptide of interest are grown in media in which glutamine is limited. The use of such a system allows high levels of protein or polypeptide production and lessens accumulation of undesirable metabolic waste products such as lactate. Proteins and polypeptides expressed in accordance with the present invention may be advantageously used in the preparation of pharmaceutical, immunogenic, agricultural or other commercial compositions.

La présente invention concerne un système amélioré de production à grande échelle de protéines et/ou de polypeptides dans une culture de cellules. Selon la présente invention, des cellules exprimant la protéine ou le polypeptide recherché sont cultivées dans un milieu qui comprend une substance inhibant la glycolyse. En plus et/ou à titre d'alternative, des cellules exprimant la protéine ou le polypeptide recherché sont cultivées dans un milieu dans lequel la glutamine est limitée. L'utilisation d'un tel système permet la production de niveaux élevés de protéine ou de polypeptide et diminue l'accumulation de déchets métaboliques indésirables tels que le lactate. Les protéines et les polypeptides exprimés conformément à la présente invention peuvent être utilisés de manière avantageuse pour la préparation de compositions commerciales pharmaceutiques, immunogènes, agricoles ou autres.

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