SGI-1027
(Synonyms: DNA Methyltransferase Inhibitor II) 目录号 : GC14364
A DNA methyltransferase inhibitor
Cas No.:1020149-73-8
Sample solution is provided at 25 µL, 10mM.
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SGI-1027 is an inhibitor of DNMT with IC50 values of 12.5μM, 8μM and 7.5μM, respectively for DNMT1, DNMT3A and DNMT3B [1].
SGI-1027 shows inhibition with mammalian DNMTs and bacterial M. SssI in vitro. Both the endogenous and recombinant DNMTs can be inhibited by SGI-1027. The mechanism of this inhibition is that SGI-1027 competes with Ado-Met but not the substrate DNA within the cofactor binding site of the enzyme. SGI-1027 inhibits DNA methylation through directly inhibiting DNMTs [1].
In cancer cells, many TSGs are silenced due to hypermethylation of CpG islands in their promoters. SGI-1027 can demethylates these CpG islands and reactivate the silenced TSGs. In RKO cells, prolonged treatment of SGI-1027 induces reexpression of P16 and TIMP3 genes. Moreover, SGI-1027 is found to cause selective degradation of DNMT1 via proteasomal pathway [1].
References:
[1] Datta J, Ghoshal K, Denny WA, Gamage SA, Brooke DG, Phiasivongsa P, Redkar S, Jacob ST. A new class of quinoline-based DNA hypomethylating agents reactivates tumor suppressor genes by blocking DNA methyltransferase 1 activity and inducing its degradation. Cancer Res. 2009 May 15;69(10):4277-85.
Kinase experiment: | To determine the nature of inhibition of DNMTase activity by SGI-1027, DNMT1 enzyme activity is measured in presence of a fixed concentration of SGI-1027 (0, 2.5, 5, and 10 μM) while one of the two (Ado-Met or DNA) is varied in a particular reaction mixture. At a fixed concentration of DNA (500 ng) varying concentrations of Ado-Met used are from 25-500 nM, respectively. Similarly, final DNA concentrations are varied from (25-500 ng) at 75 nM Ado-Met[1]. |
Cell experiment: | Rat hepatoma H4IIE cells are grown in DMEM supplemented with fetal bovine serum (10%) and calf serum (10%). Cells are seeded into 96-well plates and after 48 h exposed to SGI-1027 at concentrations ranging from 0 to 300 µM. The solubility is determined by Nephalometry techniques immediately after dosing and before harvesting the cells at 24 h. Following the exposure period, the cells or their supernatant (culture medium) are analyzed for changes in cell proliferation (propidium iodide), membrane leakage (α-GST), mitochondrial function [3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide and cellular ATP], oxidative stress (intracellular GSH and 8-isoprostane), and apoptosis (caspase-3). The half-maximal toxic concentration (TC50) is determined from the dose-response curves[1]. |
References: [1]. Datta J, et al. A new class of quinoline-based DNA hypomethylating agents reactivates tumor suppressor genes by blocking DNA methyltransferase 1 activity and inducing its degradation. Cancer Res. 2009 May 15;69(10):4277-85. | |
| Cas No. | 1020149-73-8 | SDF | |
| 别名 | DNA Methyltransferase Inhibitor II | ||
| 化学名 | N-[4-[(2-amino-6-methylpyrimidin-4-yl)amino]phenyl]-4-(quinolin-4-ylamino)benzamide | ||
| Canonical SMILES | CC1=CC(=NC(=N1)N)NC2=CC=C(C=C2)NC(=O)C3=CC=C(C=C3)NC4=CC=NC5=CC=CC=C54 | ||
| 分子式 | C27H23N7O | 分子量 | 461.52 |
| 溶解度 | ≥ 22.25mg/mL in DMSO with gentle warming | 储存条件 | Store at -20° C |
| General tips | 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 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。 为了提高溶解度，请将管子加热至37℃，然后在超声波浴中震荡一段时间。 |
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| Shipping Condition | 评估样品解决方案：配备蓝冰进行发货。所有其他可用尺寸：配备RT，或根据请求配备蓝冰。 | ||
| 制备储备液 | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 2.1668 mL | 10.8338 mL | 21.6675 mL |
| 5 mM | 0.4334 mL | 2.1668 mL | 4.3335 mL |
| 10 mM | 0.2167 mL | 1.0834 mL | 2.1668 mL |
| 第一步：请输入基本实验信息（考虑到实验过程中的损耗，建议多配一只动物的药量） | ||||||||||
| 给药剂量 | mg/kg |  |
动物平均体重 | g | |
每只动物给药体积 | ul | |
动物数量 | 只 |
| 第二步：请输入动物体内配方组成（配方适用于不溶于水的药物；不同批次药物配方比例不同，请联系GLPBIO为您提供正确的澄清溶液配方） | ||||||||||
| % DMSO % % Tween 80 % saline | ||||||||||
| 计算重置 | ||||||||||
计算结果:
工作液浓度： mg/ml；
DMSO母液配制方法： mg 药物溶于 μL DMSO溶液（母液浓度 mg/mL，
体内配方配制方法：取 μL DMSO母液，加入 μL PEG300，混匀澄清后加入μL Tween 80，混匀澄清后加入 μL saline，混匀澄清。
1. 首先保证母液是澄清的；
2.
一定要按照顺序依次将溶剂加入，进行下一步操作之前必须保证上一步操作得到的是澄清的溶液，可采用涡旋、超声或水浴加热等物理方法助溶。
3. 以上所有助溶剂都可在 GlpBio 网站选购。
Quality Control & SDS
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- Purity: >99.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet