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Review
. 2016 Jan;25(1):35-41.
doi: 10.1097/MNH.0000000000000185.

Endothelin-1 and the kidney: new perspectives and recent findings

Carmen De Miguel  1 , Joshua S Speed, Malgorzata Kasztan, Eman Y Gohar, David M Pollock
Affiliations
Review

Endothelin-1 and the kidney: new perspectives and recent findings

Carmen De Miguel et al. Curr Opin Nephrol Hypertens. 2016 Jan.

Abstract

Purpose of review: The role of endothelin-1 (ET-1) in the kidney has been under study for many years; however, the complex mechanisms by which endothelin controls the physiology/pathophysiology of this organ are not fully resolved. This review aims to summarize recent findings in the field, especially regarding glomerular and tubular damage, Na/water homeostasis and sex differences in ET-1 function.

Recent findings: Podocytes have been recently identified as a target of ET-1 in the glomerular filtration barrier via ETA receptor activation. Activation of the ETA receptor by ET-1 leads to renal tubular damage by promoting endoplasmic reticulum stress and apoptosis in these cells. In addition, high flow rates in the nephron in response to high salt intake induce ET-1 production by the collecting ducts and promote nitric oxide-dependent natriuresis through epithelial sodium channel inhibition. Recent evidence also indicates that sex hormones regulate the renal ET-1 system differently in men and women, with estrogen suppressing renal ET-1 production and testosterone upregulating that production.

Summary: Based on the reports reviewed in here, targeting of the renal endothelin system is a possible therapeutic approach against the development of glomerular injury. More animal and clinical studies are needed to better understand the dimorphic control of this system by sex hormones.

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Conflict of interest statement

Conflict of interest

The authors declare no conflicts of interests

Figures

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