Endothelium and endothelin: regulators of arterial stiffness and fibrinolysis in ANCA-associated vasculitis.

Barton, Matthias · Kidney Int · 2022

editorial · Level V

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Abstract

In this issue, Farrah et al. report clinical investigations in patients with antineutrophil cytoplasmic antibody-associated vasculitis (AAV). They demonstrate that endothelium-dependent vasodilatation, fibrinolytic capacity, and monocyte-dependent endothelin-1 clearance are reduced in patients with AAV, whereas circulating levels of endothelin-1 and vascular stiffness are increased. Acute infusion of an endothelin ET<sub>A</sub> receptor antagonist reduced vasoconstriction and arterial stiffness. This Commentary discusses biological insights and clinical implications of this study.

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