Use of HSA-producing cells

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United States of America Patent

PATENT NO 8597909
APP PUB NO 20110262967A1
SERIAL NO

13062781

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The present invention refers to the area of cell culture technology and relates to methods for multiplying/cloning cells, preferably cell lines, which are important to the production of biopharmaceuticals. The invention further relates to methods for manufacturing proteins and to the use of cells extracted and multiplied through single cell sorting and to media compositions that enable a multiplication of single cells. Through the use of albumin-producing, preferably HSA-producing, cells as feeder cells for the conditioning of medium or as host cells, the recloning efficiency and thereby the quantity of clones obtained can be significantly increased. A combination of these approaches is also possible. Through the use of albumin-producing, preferably HSA-producing, cells, an increase in the recloning efficiency can be achieved in serum-free and/or insulin-free medium as well, and in different cell types.

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Patent Owner(s)

Patent OwnerAddress
BOEHRINGER INGELHEIM PHARMA GMBH & CO KG55216 INGELHEIM AM RHEIN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bischoff, Rebecca Warthausen, DE 2 0
Fieder, Juergen Biberach, DE 12 72
Florin, Lore Biberach, DE 20 45
Kaufmann, Hitto Ulm, DE 20 47
Krieg, Thomas Warthausen, DE 15 20

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