Endothelin and the kidney
- Donald E Kohan, MD, PhD
Donald E Kohan, MD, PhD
- Professor of Medicine
- University of Utah School of Medicine
The endothelin (ET) family consists of three 21-amino acid peptides (ET-1, ET-2, and ET-3) . Each ET is formed as a propeptide known as big ET, which is converted to the mature peptide by endothelin-converting enzymes located both inside and outside of cells [2,3].
Once secreted, ETs bind to two general classes of receptors: endothelin A (ETA) and endothelin B (ETB) [4,5]. Two important features of ET-receptor interaction help explain the actions of ET:
●ET remains bound to the receptor for several hours, imparting a sustained effect
●ET generally binds to receptors located on the same cell as, or on cells immediately adjacent to, the cells that secreted the peptide
ETs are produced by most cell types in the kidney and have a wide variety of biologic actions. The most important are:To continue reading this article, you must log in with your personal, hospital, or group practice subscription. For more information on subscription options, click below on the option that best describes you:
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