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CAS No. : 845614-11-1
MCE 国际站:Bitopertin
产品活性:Bitopertin 是一种有效的非竞争性glycine reuptake 抑制剂,抑制甘氨酸摄取,IC50 为 25 nM。
研究领域:Membrane Transporter/Ion Channel | Neuronal Signaling
作用靶点:GlyT
In Vitro: Bitopertin (RG1678) competitively blocks [3H]ORG24598 binding sites at human GlyT1b in membranes from Chinese hamster ovary cells. Bitopertin potently inhibits [3H]glycine uptake in cells stably expressing hGlyT1b and mGlyT1b, with IC50 values of 25±2 nM and 22±5 nM, respectively (n=6). Conversely, Bitopertin has no effect on hGlyT2-mediated glycine uptake up to 30 μM concentration. Bitopertin has high affinity for the recombinant hGlyT1b transporter. Under equilibrium conditions (1 h at room temperature), Bitopertin displaces [3H]ORG24598 binding with a Ki of 8.1 nM. In hippocampal CA1 pyramidal cells, Bitopertin enhances NMDA-dependent long-term potentiation at 100 nM but not at 300 nM. Additional profiling revealed that Bitopertin (RG1678) has an excellent selectivity profile against the GlyT2 isoform (IC50>30 μM) and toward a panel of 86 targets including transmembrane and soluble receptors, enzymes, ion channels, and monoamine transporters (<41% inhibition at 10 μM is measured for all targets).
In Vivo: Bitopertin (RG1678) dose-dependently increases cerebrospinal fluid and striatal levels of glycine measured bymicrodialysis in rats. Additionally Bitopertin attenuates hyperlocomotion induced by the psychostimulant D-amphetamine or the NMDA receptor glycine site antagonist L-687,414 in mice. Bitopertin also prevents the hyper-response to D-amphetamine challenge in rats treated chronically with phencyclidine, an NMDA receptor open-channel blocker. Administration of vehicle has no effect on extracellular levels of striatal glycine, which remained constant throughout the experiment. In contrast, p.o. administration of Bitopertin (1-30 mg/kg) produced a dose-dependent increase in extracellular glycine levels. Bitopertin 30 mg/kg produces glycine levels 2.5 times higher than pretreatment levels. A similar dose-dependent increase in glycine concentration is observed in the CSF of rats treated p.o. with Bitopertin (1-10 mg/kg) compared with vehicle-treated animals, 3 h after drug administration. Interestingly, the level of CSF glycine increase 3 h after Bitopertin dosing is very similar to the increase in the microdialysis experiment at the same time point. In vivo pharmacokinetic studies in rat and monkey reveals that Bitopertin (RG1678) has, in both species, a low plasma clearance, an intermediate volume of distribution, a good oral bioavailability (78% for rat, 56% for monkey), and a favorable terminal half-life (5.8 h for rat, 6.4 h for monkey). The plasma protein binding is high in the two preclinical species (97%) and in human (98%). The CNS penetration of Bitopertin in rat (brain/plasma=0.7) is better than that in mouse (brain/plasma=0.5).
相关产品:Drug Repurposing Compound Library Plus | Clinical Compound Library Plus | Bioactive Compound Library Plus | Membrane Transporter/Ion Channel Compound Library | Neuronal Signaling Compound Library | Clinical Compound Library | Drug Repurposing Compound Library | Rare Diseases Drug Library | Heterocyclic Compound Library | Membrane Protein-targeted Compound Library | Membrane Receptor-targeted Compound Library | Sarcosine-d3 | PF-03463275 | Stearoyl-L-carnitine chloride | ALX-1393 | LY2365109 hydrochloride | GlyT1 Inhibitor 1 | Iclepertin | N-Arachidonylglycine | Org 25935 | Bitopertin (R enantiomer) | DCCCyB | (Rac)-ALX 5407 | ASP2535 | SSR504734 | MPDC | Sarcosine | ALX-5407 hydrochloride | Opiranserin hydrochloride | Tilapertin | Sarcosine-15N
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货号: HY-10809
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