| NT157IRS-1/2 inhibitor, inhibits IGF-1R and STAT3 signaling pathway |

Sample solution is provided at 25 µL, 10mM.
Quality Control & MSDS
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- Purity = 98.41%
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- NMR (Nuclear Magnetic Resonance)
- MSDS (Material Safety Data Sheet)
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Chemical structure

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| Cas No. | 1384426-12-3 | SDF | Download SDF |
| Synonyms | N/A | ||
| Chemical Name | (E)-3-(3-bromo-4,5-dihydroxyphenyl)-N-(3,4,5-trihydroxybenzyl)prop-2-enethioamide | ||
| Canonical SMILES | OC1=C(O)C=C(/C=C/C(NCC2=CC(O)=C(O)C(O)=C2)=S)C=C1Br | ||
| Formula | C16H14BrNO5S | M.Wt | 412.26 |
| Solubility | ≥50mg/mL in DMSO | Storage | Store at -20°C |
| Physical Appearance | A solid | Shipping Condition | Evaluation sample solution : ship with blue ice.All other available size:ship with RT , or blue ice upon request |
| General tips | For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months. | ||
IC50: 0.3 to 0.8 μM
NT157 is an IRS-1/2 inhibitor.
Insulin receptor substrates 1 and 2 (IRS1/2) mediate antiapoptotic and mitogenic signaling from insulin receptor (IR), insulin-like growth factor 1 receptor (IGF-IR), and other oncoproteins. IRS1 plays a critical role in cancer cell proliferation, and its expression is increased in many human malignancies.
In vitro: NT157 treatment was fonund to be able to lead to dose-dependent suppression of IRS protein expression, inhibition of IGF1R activation, inhibition of IGF1-induced AKT activation, but increased ERK activation in NT157-treated cells. These effects were associated with decreased proliferation, increased apoptosis of LNCaP cells and increased G2-M arrest in PC3 cells. Moreover, NT157 could significantly affect the cell migratory ability, as demonstrated by a wound-healing assay. In addition, the NT157 treatment was able to induce cell cycle arrest and inhibit IGF system signaling [1].
In vivo: In previous animal study, NT157 was found to suppress androgen-responsive growth, delay CRPC progression of LNCaP xenografts, and suppress PC3 tumor growth alone or in combination with docetaxel. This study reported the first preclinical proof-of-principle data that NT157 suppressed IRS1/2 expression, delayed CRPC progression, and suppressed growth of CRPC tumors in vivo [1].
Clinical trial: Up to now, NT157 is still in the preclinical development stage.
Reference:[1] Ibuki N et al. The tyrphostin NT157 suppresses insulin receptor substrates and augments therapeutic response of prostate cancer. Mol Cancer Ther. 2014 Dec;13(12):2827-39.
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个人大胆一次,把内表面用酒精灯考一下,让表面重新融化。就可以了。各位可以用一块有机版的边缘试试。
超净工作台(cleanbench)是为了适应现代化工业、光电产业、生物制药以及科研试验等领域对局部工作区域洁净度的需求而设计的。超净工作台原理是在特定的空间内,室内空气经预过滤器初滤,由小型离心风机压入静压箱,再经空气高效过滤器二级过滤,从空气高效过滤器出风面吹出的洁净气流具有一定的和均匀的断面风速,可以排除工作区原来的空气,将尘埃颗粒和生物颗粒带走,以形成无菌的高洁净的工作环境。
与超净工作台不同,生物安全柜是为操作原代培养物、菌毒株以及诊断性标本等具有感染性的实验材料时,用来保护操作者本人、实验室环境以及实验材料,使其避免暴露于上述操作过程中可能产生的感染性气溶胶和溅出物而设计的。超净工作台只能保护在工作台内操作的试剂等不受污染,并不保护工作人员,而生物安全柜是负压系统,能有效保护工作人员。目前实验室中,超净工作台基本能满足大部分实验操作需要。
超净工作台的使用
1使用前检查
(1)接通超净工作台的电源。
(2)旋开风机开关,使风机开始正常运转,这时应检查高效过滤器出风面是否有风送出。
(3)检查照明及紫外设备能否正常运行,如不能正常运行则通知工程部检验。
(4)工作前必须对工作台四周环境及空气进行超净处理,认真进行清洁工作,并采用紫外线灭菌法进行灭菌处理。
(5)净化工作区内严禁存放不必要的物品,以保持洁净气流活动不受干扰。
2使用方法
(1)使用工作台时,先经过清洁液浸泡的纱布擦拭台面,然后用消毒剂擦拭消毒。
(2)接通电源,提前50分钟打开紫外灯照射消毒,处理净化工作区内工作台表面积累的微生物,30分钟后,封闭紫外灯,开启送风机。
(3)工作台面上,不要存放不必要的物品,以保持工作区内的洁净气流不受干扰。
(4)操纵结束后,清理工作台面,收集各废弃物,封闭风机及照明开关,用清洁剂及消毒剂擦拭消毒。
(5)最后开启工作台紫外灯,照射消毒30分钟后,封闭紫外灯,切断电源。
(6)每仲春用风速计丈量一次工作区均匀风速,如发现不符合技术标准,应调节调压器手柄,改变风机输进电压,使工作台处于最佳状况。
(7)每月进行一次维护检查,并填写维护记录。
3清洁:
(1)每次使用完毕,立即清洁仪器,悬挂标识,并填写仪器使用记录。
(2)取样结束后,先用毛刷刷往洁净工作区的杂物和浮尘。
(3)用细软布擦拭工作台表面污迹、污垢目测无清洁剂残留,用清洁布擦干。
(4)要经常用纱布沾上酒精将紫外线杀菌灯表面擦干净,保持表面清洁,否则会影响杀菌能力。
(5)效果评价:设备内外表面应该光亮整洁,没有污迹。
4.超净工作台注意事项
(1)每次使用前开机5分钟让设备自净;
(2)注意阅读超净工作台的使用说明书
(3)定期更换超净工作台的初效过滤器和高效空气过滤器
文章来源:英格恩技术的官方博客,原文详见:http://www.engreen.cn/超净工作台的使用

