Recombinant expression of proteins from secretory cell lines

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 5/10 (2006.01) A61K 31/70 (2006.01) A61K 35/12 (2006.01) A61K 48/00 (2006.01) C07K 14/47 (2006.01) C07K 14/575 (2006.01) C07K 14/605 (2006.01) C07K 14/61 (2006.01) C07K 14/62 (2006.01) C07K 14/705 (2006.01) C07K 14/72 (2006.01) C07K 19/00 (2006.01) C12N 9/00 (2006.01) C12N 9/12 (2006.01) C12N 15/85 (2006.01) C12P 21/02 (2006.01) A61K 38/00 (2006.01)

Patent

CA 2246268

The present invention provides methods for production of heterologous polypeptides using a variety of recombinantly engineered secretory cell lines. The common feature of these cell lines is the absence of expression of at least one endogenous polypeptide. The host cell machinery normally used to produce the endogenous polypeptide is then usurped for the purpose of making the heterologous polypeptide. Also described are methods engineering cells for high level expression, methods of large scale protein production, and methods for treatment of disease in vivo using viral delivery systems and recombinant cell lines.

La présente invention se rapporte à un procédé de production de polypeptides hétérologues à l'aide d'une variété de lignées cellulaires sécrétoires recombinées par génie génétique. La caractéristique commune de ces lignées cellulaires est l'absence d'expression d'au moins un polypeptide endogène. On utilise le mécanisme des cellules hôtes utilisé normalement pour produire le polypeptide endogène pour fabriquer le polypeptide hétérologue. L'invention se rapporte également à des procédés de manipulation par génie génétique de cellules destinées à être exprimées à un haut niveau, à des procédés de production à grande échelle de protéines, et à des procédés de traitement de pathologies in vivo par des systèmes d'administration à virus et des lignées cellulaires de recombinaison.

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