Thromb Haemost 2000; 84(01): 65-70
DOI: 10.1055/s-0037-1613969
Commentary
Schattauer GmbH

Prevention of Renal Fibrin Deposition in Endotoxin-induced DIC through Inhibition of PAI-1

Ramón Montes
1   From the Hemostasis and Thrombosis Research Unit, School of Medicine, University of Navarra, Pamplona, Spain
,
Paul J. Declerck
2   Laboratory for Pharmaceutical Biology and Phytopharmacology, Faculty of Pharmaceutical Sciences, Katholieke Universiteit Leuven, Belgium, Pamplona, Spain
,
Alfonso Calvo
3   Histology Department, University of Navarra, Pamplona, Spain
,
Marta Montes
4   Pathology Service, Hospital Virgen del Camino, Pamplona, Spain
,
José Hermida
1   From the Hemostasis and Thrombosis Research Unit, School of Medicine, University of Navarra, Pamplona, Spain
,
María C. Muñoz
1   From the Hemostasis and Thrombosis Research Unit, School of Medicine, University of Navarra, Pamplona, Spain
,
Eduardo Rocha
1   From the Hemostasis and Thrombosis Research Unit, School of Medicine, University of Navarra, Pamplona, Spain
5   Hematology Service, University Clinic of Navarra, Pamplona, Spain
› Author Affiliations

This work was supported in part by grant PM94-1553 from the DGICYT of the Ministerio de Educación y Ciencia, Spain. This work was supported in part by a grant from the Fund for Scientific Research (F. W. O. – Vlaanderen, project 7.0034.98). We acknowledge the technical assistance of Mercedes Fernández and Yolanda Azcona.
Further Information

Publication History

Received 14 October 1999

Accepted after resubmission 21 February 2000

Publication Date:
10 December 2017 (online)

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Summary

Plasminogen activator inhibitor-1 (PAI-1) increases in endotoxemia thus possibly cooperating in altering the hemostatic balance in a prothrombotic direction. The effect of the inhibition of PAI-1 with the monoclonal antibody MA-33B8 was studied systemically and in kidneys in a lapine model of endotoxin-induced disseminated intravascular coagulation (DIC). The increase in plasmatic PAI activity in the control group (n = 9) was inhibited in the MA-33B8 treated rabbits (n = 5). Control rabbits showed renal fibrin deposits, whereas only one of the MA-33B8 rabbits did so. These results were confirmed immunohistochemically in kidneys as PAI-1 immunostaining was seen inside the glomeruli and larger vessels in the control group, whereas MA-33B8 rabbits showed a remarkable decrease, demonstrating that MA-33B8 successfully inhibited PAI-1 in the kidneys as well. Therefore evidence for the important role of PAI-1 in fibrin generation in endotoxin-induced DIC is presented, suggesting that strategies aiming at its reduction can be useful in this pathology.