VU0810464
目录号 : GC39459VU0810464 是有效的,选择性的非尿素蛋白门控的内向整流钾通道 (GIRK, Kir3) 激活剂。 VU0810464 对神经元 GIRK1/2 (EC50=165 nM) 和 GIRK1/4 (EC50=720 nM) 神经通道具有纳摩尔效价,并且具有脑部渗透性。
Cas No.:2126040-21-7
Sample solution is provided at 25 µL, 10mM.
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VU0810464 is a potent and selective non-ureaG protein-gated inwardly-rectifying potassium channels (GIRK, Kir3) activator. VU0810464 displays nanomolar potency for neuronal (EC50=165 nM) and GIRK1/4 (EC50=720 nM) channels with improved brain penetration[1][2].
[1]. Vo BN, et al. VU0810464, a non-urea G protein-gated inwardly rectifying K+ (Kir 3/GIRK) channel activator, exhibits enhanced selectivity for neuronal Kir 3 channels and reduces stress-induced hyperthermia in mice.Br J Pharmacol. 2019 Jul;176(13):2238-2249. [2]. Wieting JM,et al. Discovery and Characterization of 1H-Pyrazol-5-yl-2-phenylacetamides as Novel, Non-Urea-Containing GIRK1/2 Potassium Channel Activators.ACS Chem Neurosci. 2017 Sep 20;8(9):1873-1879.
Cas No. | 2126040-21-7 | SDF | |
Canonical SMILES | O=C(NC1=CC(C)=NN1C2CCCCC2)CC3=CC=C(F)C(Cl)=C3 | ||
分子式 | C18H21ClFN3O | 分子量 | 349.83 |
溶解度 | DMSO: ≥ 250 mg/mL (714.63 mM) | 储存条件 | Store at -20°C |
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1 mg | 5 mg | 10 mg | |
1 mM | 2.8585 mL | 14.2927 mL | 28.5853 mL |
5 mM | 0.5717 mL | 2.8585 mL | 5.7171 mL |
10 mM | 0.2859 mL | 1.4293 mL | 2.8585 mL |
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VU0810464, a non-urea G protein-gated inwardly rectifying K+ (Kir 3/GIRK) channel activator, exhibits enhanced selectivity for neuronal Kir 3 channels and reduces stress-induced hyperthermia in mice
Br J Pharmacol 2019 Jul;176(13):2238-2249.PMID:30924523DOI:PMC6555862
Background and purpose: G protein-gated inwardly rectifying K+ (Kir 3) channels moderate the activity of excitable cells and have been implicated in neurological disorders and cardiac arrhythmias. Most neuronal Kir 3 channels consist of Kir 3.1 and Kir 3.2 subtypes, while cardiac Kir 3 channels consist of Kir 3.1 and Kir 3.4 subtypes. Previously, we identified a family of urea-containing Kir 3 channel activators, but these molecules exhibit suboptimal pharmacokinetic properties and modest selectivity for Kir 3.1/3.2 relative to Kir 3.1/3.4 channels. Here, we characterize a non-urea activator, VU0810464, which displays nanomolar potency as a Kir 3.1/3.2 activator, improved selectivity for neuronal Kir 3 channels, and improved brain penetration. Experimental approach: We used whole-cell electrophysiology to measure the efficacy and potency of VU0810464 in neurons and the selectivity of VU0810464 for neuronal and cardiac Kir 3 channel subtypes. We tested VU0810464 in vivo in stress-induced hyperthermia and elevated plus maze paradigms. Parallel studies with ML297, the prototypical activator of Kir 3.1-containing Kir 3 channels, were performed to permit direct comparisons. Key results: VU0810464 and ML297 exhibited comparable efficacy and potency as neuronal Kir 3 channel activators, but VU0810464 was more selective for neuronal Kir 3 channels. VU0810464, like ML297, reduced stress-induced hyperthermia in a Kir 3-dependent manner in mice. ML297, but not VU0810464, decreased anxiety-related behaviour as assessed with the elevated plus maze test. Conclusion and implications: VU0810464 represents a new class of Kir 3 channel activator with enhanced selectivity for Kir 3.1/3.2 channels. VU0810464 may be useful for examining Kir 3.1/3.2 channel contributions to complex behaviours and for probing the potential of Kir 3 channel-dependent manipulations to treat neurological disorders.