| 摘要 |
The present invention relates to a method for the preparation of a Neutrophil Inhibitory Factor (NIF) comprising the cultivation of mammalian cells expressing NIF in an animal component-free growth medium. The present invention may be employed in large-scale preparation of NIF. The invention also relates to a method for the preparation of recombinant proteins comprising the cultivation of mammalian cells expressing an exogenous recombinant protein in an animal component-free growth medium.
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