Cipralisant (GT-2331) is an orally active, low-toxicity, potent, selective, high affinity histamine H3 receptor full antagonist in vivo, and an agonist in vitro, with a pK i of 9.9 for histamine H3 receptor and a K i of 0.47 nM for rat histamine H3 receptor. Cipralisant has the potential for attention-deficit hyperactivity disorder research.
性状
Solid
IC50 & Target[1][2]
H3 receptor 9.9 (pKi) rat H3 receptor
体外研究(In Vitro)
Cipralisant behaves as a full agonist on adenylyl cyclase inhibition. Cipralisant (HEK cells) potently inhibits forskolin-induced cAMP accumulation, showing that Cipralisant works as a potent full histamine H3 receptor agonist. Cipralisant increases the basal [S]GTPγS binding activities in membranes from HEK cells expressing the rat histamine H3 receptor (EC50, 5.6 nM). has not independently confirmed the accuracy of these methods. They are for reference only.
体内研究(In Vivo)
Cipralisant (0.3~30 mg/kg; s.c.) enhances acquisition over five trials, reaching significance at 1 mg/kg.
Cipralisant (10 mg/kg; p.o.) completely blocks R-α-methylhistamine-induced drinking.
Cipralisant promotes wakefulness in the rat. Cipralisant potently and significantly improves performance in the repeated acquisition model, in line with its high affinity for the rat H3 receptor and good CNS penetration. Cipralisant does not appear to be as efficacious as 3 mg/kg ciproxifan at its maximally effective dose . Cipralisant behaves as a partial agonist in a rat brain synaptosome model. has not independently confirmed the accuracy of these methods. They are for reference only.
运输条件
Room temperature in continental US; may vary elsewhere.
储存方式
Powder -20°C 3 years;4°C 2 years
参考文献
[1]. Raddatz R, et al. Histamine H3 antagonists for treatment of cognitive deficits in CNS diseases. Curr Top Med Chem. 2010;10(2):153-169.[2]. Fox GB, et al. Effects of histamine H(3) receptor ligands GT-2331 and ciproxifan in a repeated acquisition avoidance response in the spontaneously hypertensive rat pup. Behav Brain Res. 2002;131(1-2):151-161.
溶解度数据
In Vitro: DMSO : 200 mg/mL (924.56 mM; Need ultrasonic)配制储备液
[1]. Raddatz R, et al. Histamine H3 antagonists for treatment of cognitive deficits in CNS diseases. Curr Top Med Chem. 2010;10(2):153-169.[2]. Fox GB, et al. Effects of histamine H(3) receptor ligands GT-2331 and ciproxifan in a repeated acquisition avoidance response in the spontaneously hypertensive rat pup. Behav Brain Res. 2002;131(1-2):151-161.