Ethaselen(Synonyms: BBSKE)

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Ethaselen (Synonyms: BBSKE) 纯度: ≥98.0%

Ethaselen (BBSKE) 是具有口服活性的，选择性的硫氧还蛋白还原酶 (TrxR) 抑制剂，对野生型人 TrxR1 和大鼠 TrxR1 的 IC50 分别为 0.5 和 0.35 μM。Ethaselen 特异性结合哺乳动物 TrxR1 C 端活性位点中独特的硒代半胱氨酸-半胱氨酸氧化还原对。Ethaselen 是一种有机硒化合物，一种有效的抗肿瘤候选药物，可通过靶向 TrxR 对非小细胞肺癌 (NSCLC) 发挥有效抑制作用。

Ethaselen(Synonyms: BBSKE)

Ethaselen Chemical Structure

CAS No. : 217798-39-5

规格 价格 是否有货 数量
5 mg ￥3000 In-stock
10 mg ￥4900 In-stock
25 mg ￥9800 In-stock
50 mg ￥15000 In-stock
100 mg   询价  
200 mg   询价  

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Ethaselen 相关产品

•相关化合物库:

  • Clinical Compound Library Plus
  • Bioactive Compound Library Plus
  • Anti-Cancer Compound Library
  • Clinical Compound Library
  • Orally Active Compound Library
  • Anti-Lung Cancer Compound Library

生物活性

Ethaselen (BBSKE) is an orally active, selective thioredoxin reductase (TrxR) inhibitor with IC50s of 0.5 and 0.35 μM for the wild-type human TrxR1 and rat TrxR1, respectively. Ethaselen specifically binds to the unique selenocysteine-cysteine redox pair in the C-terminal active site of mammalian TrxR1. Ethaselen, an organoselenium compound, is a potent antitumor candidate that exerts potent inhibition on non-small cell lung cancer (NSCLC) by targeting TrxR[1][2].

IC50 & Target

TrxR[1]
体外研究
(In Vitro)

Ethaselen (2.5-10 μM; 12, 24 hours) suppresses A549 cell viability in a both concentration- and time-dependent manner. H1666, which has considerably lower TrxR1 expression level, is less susceptible to 24 h treatment with Ethaselen[1].
Ethaselen inhibits the intracellular TrxR1 activity in a concentration- and time-dependent manner, with IC50 values of 4.2 and 2 μM for 12- and 24-h treatments, respectively[1].
Ethaselen (2.5-10 μM; 12, 24 hours) has no effect on the protein amounts of TrxR1 and Trx. The mRNA level of TrxR1 does not show significant alteration in Ethaselen-treated A549 cells[1].
Ethaselen (2.5-50 μM; 1-24 hours) causes intracellular Trx oxidation in A549 cells[1].
Ethaselen (5-10 μM; 12, 24 hours) causes a clear concentration-dependent increase in ROS levels in A549 cells[1].
The inhibition constants for Ethaselen binding to free enzyme (Ki) and the enzyme-substrate complex (Kis) were determined to be 0.022 and 0.087 μM, respectively. Ethaselen also inhibits mammalian TrxR1 in a time-dependent manner possibly by forming a covalent Se-S bond with Cys497 of Trx[1].

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

Cell Viability Assay[1]

Cell Line: A549 cell
Concentration: 2.5, 5, 7.5, 10 μM
Incubation Time: 12, 24 hours
Result: Suppressed A549 cell viability in a both concentration- and time-dependent manner.

体内研究
(In Vivo)

Ethaselen (BBSKE; 36-108 mg/kg/day; PO; for 10 days) shows increased inhibition of tumor growth in a dose-independent manner[2].

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Model: Five-week-old female BALB/c nude mice with A549 cell[2]
Dosage: 36, 72, 108 mg/kg
Administration: PO; daily; for 10 days
Result: Showed increased inhibition of tumor growth, and the inhibition levels increased with the dose.
The TrxR activity levels of the high dose group (108 mg/kg) decreased more than the middle dose group (72 mg/kg) and low dose group (36 mg/kg).

Clinical Trial

分子量

422.20

Formula

C16H12N2O2Se2
CAS 号

217798-39-5
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
In solvent -80°C 6 months
-20°C 1 month
溶解性数据
In Vitro: 

DMSO : 12.5 mg/mL (29.61 mM; ultrasonic and warming and heat to 60°C)

配制储备液
浓度 溶剂体积 质量 1 mg 5 mg 10 mg
1 mM 2.3685 mL 11.8427 mL 23.6855 mL
5 mM 0.4737 mL 2.3685 mL 4.7371 mL
10 mM 0.2369 mL 1.1843 mL 2.3685 mL

*

请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。
储备液的保存方式和期限：-80°C, 6 months; -20°C, 1 month。-80°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。

In Vivo:

请根据您的实验动物和给药方式选择适当的溶解方案。以下溶解方案都请先按照 In Vitro 方式配制澄清的储备液，再依次添加助溶剂：

——为保证实验结果的可靠性，澄清的储备液可以根据储存条件，适当保存；体内实验的工作液，建议您现用现配，当天使用； 以下溶剂前显示的百
分比是指该溶剂在您配制终溶液中的体积占比；如在配制过程中出现沉淀、析出现象，可以通过加热和/或超声的方式助溶

  • 1.

    请依序添加每种溶剂： 10% DMSO    90% corn oil

    Solubility: ≥ 1.25 mg/mL (2.96 mM); Clear solution

    此方案可获得 ≥ 1.25 mg/mL (2.96 mM，饱和度未知) 的澄清溶液，此方案不适用于实验周期在半个月以上的实验。

    以 1 mL 工作液为例，取 100 μL 12.5 mg/mL 的澄清 DMSO 储备液加到 900 μL玉米油中，混合均匀。

*以上所有助溶剂都可在 上海金畔生物科技有限公司 网站选购。
参考文献

  • [1]. Lihui Wang, et al. Ethaselen: a potent mammalian thioredoxin reductase 1 inhibitor and novel organoselenium anticancer agent. Free Radic Biol Med. 2012 Mar 1;52(5):898-908.

    [2]. Suo-Fu Ye, et al. Dose-biomarker-response modeling of the anticancer effect of ethaselen in a human non-small cell lung cancer xenograft mouse model. Acta Pharmacol Sin. 2017 Feb;38(2):223-232.

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