HUMAN ACTIVATED PROTEIN C PREPARATION AND PROCESS FOR PREPARING SAME

摘要

A human Activated Protein C preparation with a high specific activity being substantially free from thrombin or an equivalent protease and/or Protein C not being subjected to activation and a process for preparing the same are provided. A human Activated Protein C preparation which shows specific activity of 3500 U/mg or more, the unit of specific activity being defined as an amount of APC which prolongs twice an activated thromboplastin time (APTT) of normal human plasma, and is substantially free from thrombin or an equivalent protease and/or Protein C not being subjected to activation. Said preparation is prepared by a process for purification of human Activated Protein C which comprises, after activation of Protein C with thrombin or an equivalent protease, contacting a solution containing human Activated Protein C with a cation exchanger to allow for adsorption of thrombin and Activated Protein C to the exchanger, and then eluting human Activated Protein C alone.