Asparagine feed strategies to improve cell culture performance and mitigate asparagine sequence variants

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United States of America

PATENT NO 12163122
APP PUB NO 20220064591A1
SERIAL NO

17458929

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Abstract

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A method for culturing eukaryotic cells for improved cell culture performance is provided. The method generally comprises propagating or maintaining eukaryotic cells in a defined cell culture medium; wherein the defined cell culture medium is supplemented with asparagine in an amount from about 2.6 mM to about 43.2 mM during early fed-batch cell culture and from about 2.6 mM to about 21.6 mM during late fed-batch cell culture; and maintaining said cells in said asparagine supplemented cell culture medium for at least a portion of the early fed-batch cell culture and at least a portion of the late fed-batch cell culture; wherein the performance of the cell culture is improved by the asparagine supplementation, as compared to a similar method with a lower amount of asparagine supplementation in the early and/or late fed-batch cell culture.

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Patent Owner(s)

Patent OwnerAddress
REGENERON PHARMACEUTICALS INC777 OLD SAW MILL RIVER ROAD MINNEAPOLIS MN 10591-6707

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bennun-Serrano, Sandra Briarcliff Manor, US 2 0
Johnson, Amy S Briarcliff Manor, US 28 101
Lawrence, Shawn M Nyack, US 21 54

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