2. Cell Cycle/DNA Damage
  3. DNA/RNA Synthesis
  4. Tetrahydrouridine

Tetrahydrouridine  (Synonyms: 四氢尿苷; THU; NSC-112907)

目录号: HY-15345A 纯度: 99.89%
COA 产品使用指南 技术支持

Tetrahydrouridine dihydrate 是一种有效的胞苷脱氨酶 (CDA) 抑制剂，竞争性阻断酶的活性位点。

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Tetrahydrouridine

Tetrahydrouridine Chemical Structure

CAS No. : 18771-50-1

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规格 价格 是否有货 数量
1 mg ￥1300
In-stock
5 mg ￥3300
In-stock
10 mg ￥4950
In-stock
25 mg 现货 询价
50 mg 现货 询价
100 mg 现货 询价
200 mg   询价  
500 mg   询价  

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Customer Review

Other Forms of Tetrahydrouridine:

Tetrahydrouridine 相关抗体

Top Publications Citing Use of Products

  • 生物活性

  • 实验参考方法

  • 纯度 & 产品资料

  • 参考文献

生物活性

Tetrahydrouridine dihydrate is potent inhibitor of cytidine deaminase (CDA), which competitively blocks the enzyme's active site more effectively than intrinsic cytidine[1][2].

IC50 & Target

Cytidine deaminase (CDA)[1]
体外研究
(In Vitro)

Tetrahydrouridine (THU) is a specific inhibitor of cytidine deaminase (CDA) which can suppress deamination in the catabolism of cytotoxic deoxycytidine analogues like ara-C and Gemcitabine. To test how Tetrahydrouridine affects the Gemcitabine-mediated anti-neoplastic effect on pancreatic and lung carcinoma cells, a combination therapy is performed. As expected, high CDA expression in BxPC-3 and H441 results in improved Gemcitabine sensitivity after a 100 μM Tetrahydrouridine treatment. The sensitivity of BxPC-3 and H441 cell lines increases by as much as approximately 2.1 and 4.4 fold respectively. On the other hand, MIAPaCa-2 and H1299 cells unexpectedly become more sensitive to Gemcitabine with low CDA expression. MIAPaCa-2 and H1299 cells show a change in IC50 of 2.2 and 2.3 fold respectively. However, Panc-1 and H322 cells do not show significant changes in drug sensitivity. These data suggested that Tetrahydrouridine can sensitize some pancreatic and lung carcinoma cells to Gemcitabine-induced cell death regardless of CDA expression levels. Tetrahydrouridine inhibits S-phase without apoptosis[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

Tetrahydrouridine 相关抗体:
体内研究
(In Vivo)

Administration of 167 mg/kg Tetrahydrouridine (THU) followed by 1.0 mg/kg DAC results in death in one male and eight females. Animals surviving to scheduled termination are generally asymptomatic with no treatment related effects observed in body weights, food consumption, clinical chemistry and urinalysis for a treatment up to 1.0 mg/kg DAC in combination with 167 mg/kg Tetrahydrouridine in animals[2].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
Clinical Trial
分子量

248.23

Formula

C9H16N2O6
CAS 号
性状

固体

颜色

White to off-white

中文名称

四氢尿苷
运输条件

Room temperature in continental US; may vary elsewhere.
储存方式
Powder -20°C 3 years
In solvent -80°C 6 months
-20°C 1 month
溶解性数据
细胞实验： 

H2O 中的溶解度 : 100 mg/mL (402.85 mM; 超声助溶)

配制储备液
浓度 溶剂体积 质量 1 mg 5 mg 10 mg
1 mM 4.0285 mL 20.1426 mL 40.2852 mL
5 mM 0.8057 mL 4.0285 mL 8.0570 mL
查看完整储备液配制表

* 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。

* 备注：如您选择水作为储备液，请稀释至工作液后，再用 0.22 μm 的滤膜过滤除菌后使用。

  • 摩尔计算器

  • 稀释计算器

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

质量
=
浓度
×
体积
×
分子量 *

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

浓度 (start)

C1

×
体积 (start)

V1

=
浓度 (final)

C2

×
体积 (final)

V2

动物溶解方案计算器
请输入动物实验的基本信息：

给药剂量

mg/kg

动物的平均体重

g

每只动物的给药体积

μL

动物数量

只
由于实验过程有损耗，建议您多配一只动物的量
计算结果
工作液所需浓度 : mg/mL
该产品水溶性佳，请具体参考实测 水 / PBS / Saline 中的溶解度数据。
您所需的储备液浓度超过该产品的实测溶解度，如有需要，请与 MCE 中国技术支持联系。
纯度 & 产品资料

纯度: 99.89%

COA (287 KB) HNMR (342 KB) RP-HPLC (241 KB) MS (68 KB)

产品使用指南 (1538 KB)
参考文献
Cell Assay
[1]

Cell growth for pancreatic and lung carcinoma cell lines is carried out using the colorimetric methylene blue assay in 96-well plates at a density of 5,000 cells/well. Cells are either exposed or not exposed to Tetrahydrouridine (100 µM), counting the first 12 hrs as Day 0. Mean values are calculated from three different wells in triplicates for four days[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
Animal Administration
[2]

Mice[2]
CD-1 mice (male 30-38 g and female 24-31g) from are individually housed in polycarbonate cages suspended on stainless steel racks with SaniChip certified hardwood bedding. Mice are assigned to four dose groups and a vehicle control group. Animals are gavaged with DAC or its vehicle 1 hour ± 5 minutes after administration of THU or its vehicle at a dose volume of 10 mL/kg. The DAC doses are selected based on the range finding study in which the mice tolerated six oral doses (2x/week) of 0.1, 0.2 and 0.4 mg/kg DAC in combination with a fixed dose of 167 mg/kg THU. A fixed Tetrahydrouridine dose (500 mg/m2) and the optimal timing between Tetrahydrouridine and DAC administration (60 min) are selected. Conversion of milligrams per body surface area dose in mice into milligrams per kilogram body weight dose estimation is based on Michaelis constant (km) values for mice obtained from US Food and Drug Administration published guidelines. In brief, the mouse dose in milligrams per body surface area (500 mg/m2) is divided by the km of 3 to convert the dose to milligrams per kilogram body weight (167 mg/kg).

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
参考文献

Tetrahydrouridine 相关分类

完整储备液配制表

* 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。

可选溶剂 浓度 溶剂体积 质量 1 mg 5 mg 10 mg 25 mg
H2O 1 mM 4.0285 mL 20.1426 mL 40.2852 mL 100.7131 mL
5 mM 0.8057 mL 4.0285 mL 8.0570 mL 20.1426 mL
10 mM 0.4029 mL 2.0143 mL 4.0285 mL 10.0713 mL
15 mM 0.2686 mL 1.3428 mL 2.6857 mL 6.7142 mL
20 mM 0.2014 mL 1.0071 mL 2.0143 mL 5.0357 mL
25 mM 0.1611 mL 0.8057 mL 1.6114 mL 4.0285 mL
30 mM 0.1343 mL 0.6714 mL 1.3428 mL 3.3571 mL
40 mM 0.1007 mL 0.5036 mL 1.0071 mL 2.5178 mL
50 mM 0.0806 mL 0.4029 mL 0.8057 mL 2.0143 mL
60 mM 0.0671 mL 0.3357 mL 0.6714 mL 1.6786 mL
80 mM 0.0504 mL 0.2518 mL 0.5036 mL 1.2589 mL
100 mM 0.0403 mL 0.2014 mL 0.4029 mL 1.0071 mL

* 备注：如您选择水作为储备液，请稀释至工作液后，再用 0.22 μm 的滤膜过滤除菌后使用。

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

Keywords:

Tetrahydrouridine18771-50-1THU NSC-112907四氢尿苷NSC112907NSC 112907NSC-112907DNA/RNA SynthesisInhibitorinhibitorinhibit

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