Table 1

 Sites of production of ET-1, ET-2, and ET-3

ET-1ET-2ET-3
• Endothelial cells• Kidney epithelial cells• Neurons
• Vascular smooth muscle cells• Gastrointestinal stromal cells• Glia
• Epithelial cells• Adrenal cells
• Hepatocytes• Lung epithelial cells
• Neurons• Gastrointestinal stromal cells
• Astrocytes• Kidney epithelial cells