Role of plasmin in the degradation of the stroma-derived fibrin in human
ovarian carcinoma
O Wilhelm, R Hafter, A Henschen, M Schmitt and H Graeff
Frauenklinik der Technischen Universitat Munchen, FRG.
The aim of this study was to evaluate the type of enzymes involved in
tumor-associated fibrinolysis of the stroma component fibrin in ovarian
cancer patients. For this purpose, the high-molecular-mass fibrin
degradation products (HMM-XDP) were isolated from malignant ascitic fluid
by protamine sulfate precipitation and further purified by gel filtration
and acid precipitation. After reduction with 2- mercaptoethanol, the
peptide chain components were separated by reverse- phase high-performance
liquid chromatography (RP-HPLC). The nature of these components was
elucidated by sodium dodecyl sulfate- polyacrylamide gel electrophoresis
(SDS-PAGE) and N-terminal amino acid sequence analysis and compared with
fibrin-derived fragments formed in vitro. The results indicate that plasmin
is the essential protease involved in the degradation of the stroma-derived
fibrin portion found in ovarian cancer ascites.
Volume 75,
Issue 8,
pp. 1673-1678,
04/15/1990
Copyright © 1990 by The American Society of Hematology