Nephrol Dial Transplant (2001) 16: 1529-1531
© 2001 European Renal Association-European Dialysis and Transplant Association
Editorial Comments
Role of thrombin receptors in the kidney: lessons from PAR1 knock-out mice
Service de Néphrologie A, Association Claude Bernard, and INSERM U489, Hôpital Tenon, Paris, France
Keywords: kidney; knock-out strategy; PAR1; receptor; thrombin
Introduction
Thrombin is a serine proteinase which cleaves fibrinogen into fibrin and constitutes the key enzyme of blood coagulation. In addition, it is a potent activator of platelet aggregation, and of several cell types including endothelial cells, smooth muscle cells, fibroblasts, neurones, and mononuclear white blood cells. The role of thrombin in renal pathophysiology has been suspected for many years, due to the frequent fibrin deposition observed in the kidney in various vascular or glomerular diseases [1].
During the last 10 years, the cellular receptors mediating the mechanisms of action of thrombin and several other serine proteinases have been discovered, and their roles in vivo have been demonstrated, mainly due to gene knock-out (KO) strategy. It is beyond the scope of this paper to describe all that is known today about these receptors, and excellent recent reviews are available [2,3]. Our objective is to present
The protease-activated receptor family: a subgroup of the 7-transmembrane domain receptors
The first thrombin receptor: PAR1 is expressed in the kidney
Experimental nephropathies in PAR1-/- mice
Conclusions and perspectives
Notes
References
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