ホームページ Neuronal Signaling 5-HT Receptor antagonist WAY-100635 Maleate For research use only.

WAY-100635 Maleate

WAY-100635 Maleate is a potent and selective 5-HT receptor antagonist with IC50 of 0.95 nM.

WAY-100635 Maleate化学構造

CAS No. 1092679-51-0

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製品安全説明書

現在のバッチを見る： S266301 DMSO] 85 mg/mL] false] Ethanol] 85 mg/mL] false] Water] Insoluble] false 純度： 99.95%
99.95

WAY-100635 Maleate関連製品

シグナル伝達経路

5-HT Receptor Signaling Pathways

5-HT Receptorシグナル伝達経路

5-HT Receptor阻害剤の選択性比較

生物活性

製品説明 WAY-100635 Maleate is a potent and selective 5-HT receptor antagonist with IC50 of 0.95 nM.
特性 Characterised as the first 5-HT1A antagonist radioligand.
Targets
5-HT [1]
0.95 nM
In Vitro
In vitro In dorsal raphe nucleus (DRN) slices superfused with WAY 100635 (10 nM), the majority of putative 5-HT neurons increase their firing rate (13% of baseline rate). In addition, WAY 100635 completely prevents the decrease in firing rate produced by 5-HT (3-15 μM), 8-OH-DPAT (10 nM), 5-carboxamidotryptamine (20 nM) and lesopitron (100 nM). The antagonism exerted by WAY 100635 is fully surmounted by increasing the concentration of 5-HT to 300 μM with an IC50 of 0.95 nM. In hippocampal slices, WAY 100635 (0.5 nM -10 nM) does not alter the resting membrane potential or the membrane input resistance of intracellularly recorded CA1 pyramidal cells. However, WAY 100635 completely prevents not only the hyperpolarization, with an IC50 of 1.3 nM, but also the decrease in membrane input resistance produced by 5-HT and 5-carboxamidotryptamine with IC50 of 22.5 μM and 50 nM, respectively. [1] WAY 100635 has an IC50 of 1.35 nM and is > 100-fold selective for the 5-HT1A site relative to a range of other CNS receptors. The Bmax of [3H]WAY 100635 specific binding is consistently 50-60% greater than that of the agonist radioligand, [3H]8-OH-DPAT. Mn2+, but not guanine nucleotides, inhibits [3H]WAY 100635-specific binding. WAY 100635 has no 5-HT1A receptor agonist actions, but dose-dependently blocks the effects of agonists at both the postsynaptic 5-HT1A receptor in the CA1 region of the hippocampus, and the somatodendritic 5-HT1A receptor locates on dorsal raphe 5-HT neurones. [2] [3H]WAY 100635 has a Kd of approximately 2.5 nM. [3] In the isolated guinea-pig ileum WAY 100635 is a potent and, at high concentrations, an insurmountable antagonist of the 5-HT1A receptor agonist action of 5-carboxamidotryptamine, with an apparent pA2 value (at 0.3 nM) of 9.71. [4] Five minutes after the i.v. injection of [3H]WAY 100635 (4 μCi -7.6 μCi per mouse) the amount of tritium found in the whole brain only accounted for 1.5-1.8% of the injected radioactivity, regional differences in 3H accumulation already correspondes to those of 5-HT1A receptor density. [5] In light of its only recently discovered dopaminergic activity, conclusions drawn from studies that employs WAY 100635 as a selective 5-HT1A antagonist may need to be re-evaluated. [6]
細胞実験 細胞株 Neurons
濃度 1 nM -5 nM
反応時間 2 minutes -5 minutes
実験の流れ

Extracellular recordings are made with glass microelectrodes filled with 2 M NaC1 (12 MΩ-15 MΩ). Cells are identified as 5-HT neurons according to the following criteria: biphasic action potentials of 2 msec to 3 msec in duration, slow (0.5 Hz - 2.0 Hz) and regular pattern of discharge. Firing is evoked in the otherwise silent neurons by adding the alpha-l adrenergic agonist phenylephrine (3 μM) to the superfusing ACSF. Baseline activity is recorded for at least 10 minutes before application of the different drugs. The electric signals are fed into a high-input impedance amplifier, an oscilloscope and an electronic ratemeter triggered by individual action potentials connected to an A/D converter and a personal computer. Using dedicated software, the integrated firing rate is recorded, computed and displayed on a chart recorder as consecutive 10-sec samples. The effects of agonists are evaluated by comparing the mean discharge frequency recorded during the 2 minutes that preceded WAY 100635 application with that recorded at the peak of WAY 100635 action (usually 2-5 minutes after the beginning of application). When the agonists are applied in the presence of the antagonist, the effect of the agonist is compared to baseline firing rate and to the frequency recorded during superfusion of the antagonist alone. The antagonist is left to equilibrate for 10 minutes to 25 minutes before retesting of the action of agonists.
In Vivo
In Vivo [3H]WAY 100635 is shown to bind selectively to brain 5-HT1A receptors, following intravenous administration to mice. WAY 100635 also dose-dependently blocks the ability of 8-OH-DPAT to inhibit the firing of dorsal raphe 5-HT neurones, and to induce the '5-HT syndrome', hypothermia, hyperphagia and to elevate plasma ACTH levels. In the mouse light/dark box anxiety model, WAY 100635 induces anxiolytic-like effects. WAY 100635 has no intrinsic effect on cognition in the delayed-matching-to-position model of short-term memory in the rat, but reverses the disruptive effects of 8-OH-DPAT on motor motivational performance. [2] WAY 100635 blocks the inhibitory action of 8-OH-DPAT on dorsal raphe neuronal firing in the anaesthetised rat at doses which has no inhibitory action per se. In behavioural models, WAY 100635 itself induces no overt behavioural changes but potently antagonises the behavioural syndrome induced by 8-OH-DPAT in the rat and guinea-pig (minimum effective dose = 0.003 mg/kg s.c. and ID50 = 0.01 mg/kg s.c., respectively). WAY 100635 also blocks the hypothermia induced by 8-OH-DPAT in the mouse and rat with ID50 values of 0.01 mg/kg s.c. [4]
動物実験 動物モデル Male CD1 mice with 25-30 g body weight
投与量 250 μL (30.4 μCi/mL)
投与経路 Administered via i.v.

化学情報

分子量 538.64 化学式

C25H34N4O2.C4H4O4
CAS No. 1092679-51-0 SDF Download WAY-100635 Maleate SDFをダウンロードする
Smiles COC1=CC=CC=C1N2CCN(CC2)CCN(C3=CC=CC=N3)C(=O)C4CCCCC4.C(=CC(=O)O)C(=O)O
保管

In vitro
Batch:

DMSO : 85 mg/mL ( (157.8 mM)； 吸湿したDMSOは溶解度を減少させます。新しいDMSOをご使用ください。)

Ethanol : 85 mg/mL

Water : Insoluble

モル濃度計算器

in vivo
Batch:

Add solvents to the product individually and in order.

投与溶液組成計算機

実験計算

モル濃度計算器

質量 濃度 体積 分子量

投与溶液組成計算機(クリア溶液)

ステップ１：実験データを入力してください。（実験操作によるロスを考慮し、動物数を1匹分多くして計算・調製することを推奨します）

mg/kg g μL 匹

ステップ２：投与溶媒の組成を入力してください。（ロット毎に適した溶解組成が異なる場合があります。詳細については弊社までお問い合わせください）

% DMSO % % Tween 80 % ddH2O
%DMSO %

計算結果：

投与溶媒濃度： mg/ml;

DMSOストック溶液調製方法： mg 試薬を μL DMSOに溶解する（濃度 mg/mL, 注：濃度が当該ロットのDMSO溶解度を超える場合はご連絡ください。 )

投与溶媒調製方法：Take μL DMSOストック溶液に μL PEG300，を加え、完全溶解後μL Tween 80，を加えて完全溶解させた後 μL ddH2O，を加え完全に溶解させます。

投与溶媒調製方法：μL DMSOストック溶液に μL Corn oil，を加え、完全溶解。

注意：１.ストック溶液に沈殿、混濁などがないことをご確認ください；
２.順番通りに溶剤を加えてください。次のステップに進む前に溶液に沈殿、混濁などがないことを確認してから加えてください。ボルテックス、ソニケーション、水浴加熱など物理的な方法で溶解を早めることは可能です。

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