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RY796 Sale

目录号 : GC64691

RY796 是一种有效的选择性电压门控钾 (KV2) 通道抑制剂,对 KV2.1 和 KV2.2 的 IC50 值分别为 0.25 μM 和 0.09 μM。RY796 可用于缓解疼痛的研究。

RY796 Chemical Structure

Cas No.:1393441-53-6

规格 价格 库存 购买数量
5 mg
¥720.00
现货
10 mg
¥1,170.00
现货
25 mg
¥2,430.00
现货

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Sample solution is provided at 25 µL, 10mM.

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产品描述

RY796 is a potent and selective voltage-gated potassium (KV2) channel inhibitor with IC50s of 0.25 μM and 0.09 μM for KV2.1 and KV2.2. RY796 has analgesic activity[1].

[1]. Herrington J, et al. Identification of novel and selective Kv2 channel inhibitors. Mol Pharmacol. 2011 Dec;80(6):959-64.

Chemical Properties

Cas No. 1393441-53-6 SDF Download SDF
分子式 C21H27N3O2 分子量 353.46
溶解度 储存条件 Store at -20°C
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1 mg 5 mg 10 mg
1 mM 2.8292 mL 14.1459 mL 28.2917 mL
5 mM 0.5658 mL 2.8292 mL 5.6583 mL
10 mM 0.2829 mL 1.4146 mL 2.8292 mL
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Research Update

Identification of novel and selective Kv2 channel inhibitors

Mol Pharmacol 2011 Dec;80(6):959-64.PMID:21948463DOI:10.1124/mol.111.074831.

Identification of selective ion channel inhibitors represents a critical step for understanding the physiological role that these proteins play in native systems. In particular, voltage-gated potassium (K(V)2) channels are widely expressed in tissues such as central nervous system, pancreas, and smooth muscle, but their particular contributions to cell function are not well understood. Although potent and selective peptide inhibitors of K(V)2 channels have been characterized, selective small molecule K(V)2 inhibitors have not been reported. For this purpose, high-throughput automated electrophysiology (IonWorks Quattro; Molecular Devices, Sunnyvale, CA) was used to screen a 200,000-compound mixture (10 compounds per sample) library for inhibitors of K(V)2.1 channels. After deconvolution of 190 active samples, two compounds (A1 and B1) were identified that potently inhibit K(V)2.1 and the other member of the K(V)2 family, K(V)2.2 (IC(50), 0.1-0.2 μM), and that possess good selectivity over K(V)1.2 (IC(50) >10 μM). Modeling studies suggest that these compounds possess a similar three-dimensional conformation. Compounds A1 and B1 are >10-fold selective over Na(V) channels and other K(V) channels and display weak activity (5-9 μM) on Ca(V) channels. The biological activity of compound A1 on native K(V)2 channels was confirmed in electrophysiological recordings of rat insulinoma cells, which are known to express K(V)2 channels. Medicinal chemistry efforts revealed a defined structure-activity relationship and led to the identification of two compounds (RY785 and RY796) without significant Ca(V) channel activity. Taken together, these newly identified channel inhibitors represent important tools for the study of K(V)2 channels in biological systems.

The role of voltage-gated potassium channels Kv2.1 and Kv2.2 in the regulation of insulin and somatostatin release from pancreatic islets

J Pharmacol Exp Ther 2013 Feb;344(2):407-16.PMID:23161216DOI:10.1124/jpet.112.199083.

The voltage-gated potassium channels Kv2.1 and Kv2.2 are highly expressed in pancreatic islets, yet their contribution to islet hormone secretion is not fully understood. Here we investigate the role of Kv2 channels in pancreatic islets using a combination of genetic and pharmacologic approaches. Pancreatic β-cells from Kv2.1(-/-) mice possess reduced Kv current and display greater glucose-stimulated insulin secretion (GSIS) relative to WT β-cells. Inhibition of Kv2.x channels with selective peptidyl [guangxitoxin-1E (GxTX-1E)] or small molecule (RY796) inhibitors enhances GSIS in isolated wild-type (WT) mouse and human islets, but not in islets from Kv2.1(-/-) mice. However, in WT mice neither inhibitor improved glucose tolerance in vivo. GxTX-1E and RY796 enhanced somatostatin release in isolated human and mouse islets and in situ perfused pancreata from WT and Kv2.1(-/-) mice. Kv2.2 silencing in mouse islets by adenovirus-small hairpin RNA (shRNA) specifically enhanced islet somatostatin, but not insulin, secretion. In mice lacking somatostatin receptor 5, GxTX-1E stimulated insulin secretion and improved glucose tolerance. Collectively, these data show that Kv2.1 regulates insulin secretion in β-cells and Kv2.2 modulates somatostatin release in δ-cells. Development of selective Kv2.1 inhibitors without cross inhibition of Kv2.2 may provide new avenues to promote GSIS for the treatment of type 2 diabetes.