Purification of a Specific Placental Plasminogen Activator Inhibitor by Monoclonal Antibody and Its Complex Formation with Plasminogen Activator

Author:

Åstedt B1,Lecander Ingegerd1,Brodin T2,Lundblad A2,Löw Karin2

Affiliation:

1. The Research Laboratories of the Department of Gynecology and Obstetrics, University Hospital of Lund, Lund, Sweden

2. The Department of Clinical Chemistry, University Hospital of Lund, Lund, Sweden

Abstract

SummaryA monoclonal antibody of IgG2a-type was obtained against a specific fast acting plasminogen activator inhibitor found in placenta. The placental inhibitor was purified by affinity chromatography using the monoclonal antibody and additionally in a FPLC-system. A strong complex formation was found between the inhibitor and urokinase and also with the two-chain form of plasminogen activator of the tissue-type. A weaker complex was found between the placental inhibitor and the one- chain form of the tissue-type activator.

Publisher

Georg Thieme Verlag KG

Subject

Hematology

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