| 摘要 |
This invention describes a protein-free production process for proteins having factor VIII procoagulant activity. Generally, the process includes the derivation of stable human cell clones with high productivity for B-domain deleted Factor VIII, and (2) the adaptation of cells to grow in a medium free of plasma-derived proteins. More specifically, the process includes transfecting human cells with a vector, such as in the figure, comprising a selectable marker and a sequence coding for the protein having factor VIII procoagulant activity, selecting cells with a selection agent, and isolating clones expressing high levels of the protein having factor VIII procoagulant activity. |
