VRT-043198

VRT-043198, the agent metabolite of VX-765 (Belnacasan), is a potent, selective and blood-brain barrier permeable inhibitor of interleukin-converting enzyme/caspase-1 subfamily caspases. VRT-043198 exhibits K i values of 0.8 nM and 0.6 nM for ICE/caspase-1 and caspase-4, respectively In Vitro VRT-043198 exhibits 100- to 10,000-fold selectivity against other caspase-3 and -6 to -9. VRT043198 inhibits the release of interleukin (IL)-1β and IL-18, but it has little effect on the release of several other cytokines, including IL-1α, tumor necrosis factor-, IL-6 and IL-8. VRT-043198 inhibited IL-1β release from both PBMCs (n = 8) and whole blood (n = 4) with IC 50 values of 0.67±0.55 and 1.9±0.80 nM, respectively. VRT-043198 lacks potent antiapoptotic activity. MCE has not independently confirmed the accuracy of these methods. They are for reference only. In Vivo VX-765 is converted rapidly to VRT-043198 under the action of plasma and liver esterases and also much more slowly in aqueous solution . VX765 reduces disease severity and the expression of inflammatory mediators in models of rheumatoid arthritis and skin inflammation . VX765 (25, 50, 100, or 200 mg/kg) inhibits lipopolysaccharide-induced cytokine secretion . MCE has not independently confirmed the accuracy of these methods. They are for reference only. Animal Model: Naïve male CD-1 mice . Dosage: 25-200 mg/kg. Administration: Oral gavage 1 h before i.v. injection of 2 mg/kg E. coli LPS (strain 0111:B4). Result: Reduced serum IL-1β levels. IC50& Target:Caspase-1 0.8 nM (Ki) Caspase-4 0.6 nM (Ki)

No numbering system information yet

No physical and chemical property information yet

No safety information yet

No production method and use information yet

No upstream information yet

No downstream information yet

No related product information yet