BQ-788 has been used as a selective endothelin-B (ETRB) blocker in human airway smooth muscle cells (HASMCs), uterine mesothelial cells (UtMCs)-derived vascular smooth muscle cells (VSMCs), and human umbilical vein endothelial cells (HUVECs)
Potent, selective ET B receptor antagonist (IC 50 = 1.2 nM for inhibition of ET-1 binding to human Girardi heart cells).
Selective ETB endothelin receptor antagonist.