Regeneron Pharmaceuticals, Inc.
Serum-free cell culture medium

Abstract:

The specification describes an improved serum-free animal cell culture medium, which can used for the production of a protein of interest. Ornithine, or a combination of ornithine and putrescine can be added to serum-free media or chemically defined media to improve viable cell density, to reduce cell doubling time, and to increase the production of a protein of interest.