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Endothelin and the podocyte.

Matthias Barton1, Pierre-Louis Tharaux2

  • 1Molecular Internal Medicine, University of Zürich, Zürich, Switzerland.

Clinical Kidney Journal
|June 13, 2015
PubMed
Summary
This summary is machine-generated.

Endothelin receptor antagonists (ERAs) show promise in treating proteinuric kidney diseases by protecting podocytes. ERA therapy may offer independent nephroprotective mechanisms beyond current treatments.

Keywords:
diabetesepithelial cellfocal segmental glomerulosclerosisglomerularhypertension

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Area of Science:

  • Nephrology
  • Endocrinology
  • Pharmacology

Background:

  • Endothelin plays a significant role in the progression of proteinuria and glomerulosclerosis.
  • Proteinuric kidney diseases, including focal segmental glomerulosclerosis, diabetic nephropathy, and hypertensive nephropathy, are increasingly recognized as sensitive to endothelin receptor antagonist (ERA) treatment.

Purpose of the Study:

  • To review pre-clinical studies on the causal role of endothelin in proteinuric chronic kidney disease.
  • To examine the impact of ERAs on podocyte function and integrity in vitro and in vivo.
  • To evaluate clinical evidence for ERA therapeutic benefits on podocyte function in humans.

Main Methods:

  • Review of pre-clinical research on endothelin's role in kidney disease.
  • Analysis of in vitro and in vivo studies investigating podocyte function.
  • Examination of clinical trial data on endothelin receptor antagonist efficacy.

Main Results:

  • Endothelin contributes to proteinuria and glomerulosclerosis.
  • ERA treatment demonstrates efficacy in proteinuric kidney diseases, potentially offering benefits independent of renin-angiotensin-aldosterone system blockade.
  • ERAs improve podocyte function, crucial for maintaining the glomerular filtration barrier, thereby ameliorating renal structure and function.

Conclusions:

  • Endothelin receptor antagonism is a promising therapeutic strategy for proteinuric chronic kidney diseases.
  • ERAs offer nephroprotection through mechanisms involving the preservation of podocyte integrity.
  • Further clinical investigation supports the therapeutic potential of ERAs in human kidney diseases.