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Tetrahydrouridine dihydrate 
Tetrahydrouridine dihydrate
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英文名稱 : Tetrahydrouridine dihydrate
貨號 : EY-01Y16938
含量 : >85.00%
規格 : 568 μg (100 mM * 20 μL in Water)
品牌 : 上海一研
價格 :
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產品屬性:


產品名稱

Tetrahydrouridine dihydrate

規格

568 μg (100 mM * 20 μL in Water)

貨號

EY-01Y16938

Cas No.: N/A

別名: N/A

化學名: N/A

分子式: C9H20N2O8
GC61326.png
分子量: 284.26

溶解度: DMSO: ≥ 100 mg/mL (351.79 mM); H2O: 50 mg/mL (175.90 mM)

儲存條件: Solution, -20°C, 2 years
General tipsFor obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.

Shipping ConditionEvaluation sample solution : ship with blue ice

All other available size: ship with RT , or blue ice upon request

產品描述:


Tetrahydrouridine dihydrate (THU dihydrate) is potent inhibitor of cytidine deaminase (CDA), which competitively blocks the enzyme's active site more effectively than intrinsic cytidine.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].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].[1]. Funamizu N, et al. Tetrahydrouridine inhibits cell proliferation through cell cycle regulation regardless of cytidine deaminase expression levels. PLoS One. 2012;7(5):e37424.

[2]. Terse P, et al. Subchronic oral toxicity study of decitabine in combination with tetrahydrouridine in CD-1 mice. Int J Toxicol. 2014 Mar-Apr;33(2):75-85.
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