Methylthiouracil(Synonyms: 甲硫氧嘧啶; MTU)

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Methylthiouracil (Synonyms: 甲硫氧嘧啶; MTU) 纯度: ≥98.0%

Methylthiouracil 是一种抗甲状腺剂。Methylthiouracil 抑制 TNF-αIL-6 的产生以及 NF-κBERK1/2 的活化。

Methylthiouracil(Synonyms: 甲硫氧嘧啶; MTU)

Methylthiouracil Chemical Structure

CAS No. : 56-04-2

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生物活性

Methylthiouracil is an antithyroid agent. Methylthiouracil suppresses the production TNF-α and IL-6, and the activation of NF-κB and ERK1/2.

IC50 & Target

NF-κB

 

IL-6

 

ERK1

 

ERK2

 

TNF-α

 

体外研究
(In Vitro)

HUVECs are treated with various concentrations of MTU (0-20 μM) for 6 h after the addition of LPS (100 ng/mL) for 4 h. MTU inhibits LPS-mediated hyperpermeability in endothelial cells, with the optimal effect occurring at a concentration above 5 μM. The effects of MTU are examined on HUVEC actin cytoskeletal arrangement by immunofluorescence staining of HUVEC monolayers with F-actin labeled fluorescein phalloidin. Control HUVECs exhibit a random distribution of F-actin throughout the cells, with some localization of actin filament bundles at the cell boundaries. Barrier disruption by LPS (100 ng/mL) is manifested by the formation of paracellular gaps in HUVECs. In addition, post-treatment with MTU (10 or 20 μM) results in inhibited formation of LPS-induced paracellular gaps with the formation of dense F-actin rings. To test the cytotoxicity of MTU, cellular viability assays are performed in HUVECs treated with MTU for 24 h. At concentrations up to 20 μM, MTU does not affect cell viability[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.

体内研究
(In Vivo)

MTU treatment results in marked inhibition of the peritoneal leakage of dye induced by LPS. The average circulating blood volume for mice is 72 mL/kg. Because the average mouse weight in this study is 27 g, and the average blood volume is 2 mL, the injected MTU (142 or 284 μg/kg) results in a maximum concentration of 10 or 20 μM in the peripheral blood[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.

分子量

142.18

Formula

C5H6N2OS

CAS 号

56-04-2

中文名称

甲硫氧嘧啶;甲基硫脲嘧啶;甲基硫氧嘧啶;硫氧嘧啶

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 : ≥ 50 mg/mL (351.67 mM)

* “≥” means soluble, but saturation unknown.

配制储备液
浓度 溶剂体积 质量 1 mg 5 mg 10 mg
1 mM 7.0333 mL 35.1667 mL 70.3334 mL
5 mM 1.4067 mL 7.0333 mL 14.0667 mL
10 mM 0.7033 mL 3.5167 mL 7.0333 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    40% PEG300    5% Tween-80    45% saline

    Solubility: ≥ 2.5 mg/mL (17.58 mM); Clear solution

    此方案可获得 ≥ 2.5 mg/mL (17.58 mM,饱和度未知) 的澄清溶液。

    以 1 mL 工作液为例,取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中,混合均匀;向上述体系中加入50 μL Tween-80,混合均匀;然后继续加入 450 μL生理盐水定容至 1 mL。

    将 0.9 g 氯化钠,完全溶解于 100 mL ddH₂O 中,得到澄清透明的生理盐水溶液

  • 2.

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

    Solubility: ≥ 2.5 mg/mL (17.58 mM); Clear solution

    此方案可获得 ≥ 2.5 mg/mL (17.58 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 25.0 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]. Ku SK, et al. Anti-inflammatory effects of methylthiouracil in vitro and in vivo. Toxicol Appl Pharmacol. 2015 Nov 1;288(3):374-86.

Cell Assay
[1]

MTT is used as an indicator of cell viability. Primary human umbilical vein endothelial cells (HUVECs) are grown in 96-well plates at a density of 5×103 cells/well. After 24 h, the cells are washed with fresh medium and treated with MTU (0-20 μM). After a 48 h incubation period, the cells are washed, and 100 μL of MTT (1 mg/mL) is added, followed by incubation for 4 h. Finally, DMSO (150 μL) is added to solubilize the formazan salt formed, and the amount of formazan salt is determined by measuring the OD at 540 nm using a microplate reader [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.

Animal Administration
[1]

Mice[1]
Male C57BL/6 mice (6-7 weeks old; average weight, 27 g) are used in this study. Mice are administered LPS (0.3 mg/mouse or 15 mg/kg, intravenously). After 4 h, the mice are intravenously treated with MTU (142 or 284 μg/kg, for 6 h) and injected with 1% Evans blue dye solution in normal saline. Six hours later, the mice are sacrificed and peritoneal exudates are collected by washing cavities with 5 mL of normal saline and by centrifuging at 200× g for 10 min. The absorbance of the supernatant is read at 650 nm. Vascular permeabilities are expressed as μg of dye/mouse that leaked into the peritoneal cavity and are determined using a standard curve.

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.

参考文献
  • [1]. Ku SK, et al. Anti-inflammatory effects of methylthiouracil in vitro and in vivo. Toxicol Appl Pharmacol. 2015 Nov 1;288(3):374-86.

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