ETA receptor

The ETA receptor is a specific protein on the surface of certain cells that responds to a molecule called endothelin-1, which is a potent substance involved in constricting blood vessels and regulating blood pressure. When endothelin-1 binds to the ETA receptor, it causes blood vessels to narrow, helping control blood flow and pressure. This receptor plays a key role in maintaining vascular health, but excessive activation can contribute to issues like high blood pressure and other cardiovascular problems. Drugs targeting the ETA receptor can help treat these conditions by blocking its activity.