FR167344 free base is an orally active, nonpeptide antagonist of the bradykinin receptor B2, exhibiting high-affinity binding (IC50: 65 nM) and showing no binding affinity for the B1 receptor.
Labradimil is a bradykinin B2 receptor agonist. Labradimil increases the permeability of human brain microvascular endothelial cell monolayers. Labradimil enhances delivery of hydrophilic chemotherapeutics and increases survival in rats with metastatic tu
TREK1 and TREK2 channel activator (EC50 = 0.76 μM in Rb efflux assay in TREK1-expressing CHO cells). Exhibits selectivity for TREK1/2 over TRAAK, TASK3 and a range of other potassium channels. Hyperpolarizes membrane potential of dorsal root ganglion neurons and depresses neuronal activity in vitro.
Loucif et al (2018) GI-530159, a novel, selective, mechanosensitive two-pore-domain potassium (K2P) channel opener, reduces rat dorsal root ganglion neuron excitability. Br.J.Pharmacol. 175 2272 PMID:29150838