SB-408124 Hydrochloride

SB408124 Hcl is a non-peptide antagonist for OX1 receptor with Ki of 57 nM and 27 nM in both whole cell and membrane, respectively; exhibits 50-fold selectivity over OX2 receptor.IC50 Value: 57 nM(Ki)Target: OX1 Receptorin vitro: SB-408124 binds hypocretin type 1 receptor (HcrtR1) with pKi values of 7.57. Calcium mobilization studies shows that SB-408124 is a functional antagonist of the OX1 receptor with a affinity of approximately 50-fold selectivity over the OX2 receptor. A recent study indicates that pretreatment of primary cultures of rat astrocytes with SB-401824 before Orexin A administration significantly reduced the stimulatory action of Orexin A on both basal and forskolin-acivated cAMP production.in vivo: SB-408124 (30 μg/10 μL, administered intracerebroventricularly) decreases Orexin-A induced water intake in Wistar rats. Intracerebroventricularly administered Orexin-A (30 μg/10 μL) blocks the vasopressin (VP) level increase induced by either histamine or 2.5% NaCl administration, and this blocking effect is moderated by pretreatment with SB-408124. Intracerebroventricular pretreatment with SB-408124 (50 mM, 5 μL/h) prevents Bicuculline (BIC)-induced increases in endogenous glucose production (EGP).

Signaling Pathways >> GPCR/G Protein >> Orexin Receptor (OX Receptor)

Research Areas >> Neurological Disease

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[5]. Kis GK, et al.The osmotically and histamine-induced enhancement of the plasma vasopressin level is diminished by intracerebroventricularly administered orexin in rats.Pflugers Arch. 2012 Apr;463(4):531-6. Epub 2012 Feb 16.

SB 334867 | lemborexant | Almorexant HCI | Filorexant | Orexin 2 Receptor Agonist | TCS-OX2-29 | MK-1064 | SB-674042 | GSK1059865 | IPSU | SB408124 | MK-3697 | Nemorexant | Orexin B (mouse, rat) | SB-649868