A PROCESS FOR PRODUCING A RECOMBINANT POLYPEPTIDE INVOLVING THE ADDITION OF AN INHIBITOR OF METAL-DEPENDENT PROTEASES OR CHYMOTRYPSINS TO THE CELL CULTURE MEDIUM

摘要

The present invention relates to a process for reducing the detrimental influence of certain proteases on recombinant human protein and polypeptide molecules, by adding an inhibitor of metal-dependent proteases or chymotrypsins to the cell culture medium. The invention also relates to a cell culture medium for cultivating cells expressing and secreting a biologically active recombinant human polypeptide containing an inhibitor of metal-dependent proteases or chymotrypsins, or a combination thereof. The invention further relates to use of recombinant factor VIII which has been produced in a cell culture medium according to the present process for the manufacture of a medicament for administration to a patient having the symptoms of hemophilia A. Also, the invention relates to a method for treatment of hemophilia A by administration of a therapeutically effective amount of recombinant factor VIII which has been produced in a cell culture medium according to the present process.