The endothelin system has been identified as having a substantial role in r
enal failure, both acute and chronic. Beside its well characterised haemody
namic effects, its mitogenic and pro-fibrotic properties have gained increa
sed interest in the pathophysiology of chronic renal failure. This review o
utlines the role of endothelin in the pathogenesis of various renal disease
s with a special focus on the potential of blocking this system with endoth
elin receptor antagonists. So far, most data were derived from animal model
s, but they provide strong evidence that endothelin receptor antagonists ma
y represent a powerful therapeutic strategy in ameliorating the course of a
cute and chronic renal failure.