MT-DADMe-ImmA (Methylthio-DADMe-Immucillin A)
(Synonyms: MTDIA; Methylthio-DADMe-Immucillin A) 目录号 : GC32730
An MTAP inhibitor
Cas No.:653592-04-2
Sample solution is provided at 25 µL, 10mM.
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Quality Control & SDS
- View current batch:
- Purity: >98.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
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Cell experiment: |
Cell viability is evaluated using the Alamar Blue assay. Cells are seeded onto 96-well plates at a density of 104 cells/well and incubated with increasing concentrations of MT-DADMe-ImmA (100 pM to 100 μM) for 4 days at fixed MTA concentrations (0, 5, 10, and 20 μM). IC50 is determined with the assay data[2]. |
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Animal experiment: |
Mice: Tumors were established in mice for 5 days prior to oral or intraperitoneal treatments with MT-DADMe-ImmA. Mice are treated with oral dose of 21 mg/kg or an intraperitoneal dose of 5 mg/kg/day MT-DADMe-ImmA[2]. |
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References: [1]. Evans GB, et al. Second generation transition state analogue inhibitors of human 5'-methylthioadenosine phosphorylase. J Med Chem. 2005 Jul 14;48(14):4679-89. |
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MT-DADMe-ImmA is an inhibitor of 5'-methylthioadenosine phosphorylase (MTAP; Ki = 1.7 nM).1 It increases levels of MTA , a product of polyamine metabolism, in FaDu human squamous cell carcinoma cells when used at a concentration of 1 ?M.2 MT-DADMe-ImmA (5, 9, and 21 mg/kg per day for 28 days) reduces tumor growth in a FaDu mouse xenograft model.
1.Evans, G.B., Furneaux, R.H., Lenz, D.H., et al.Second generation transition state analogue inhibitors of human 5'-methylthioadenosine phosphorylaseJ. Med. Chem.48(14)4679-4689(2005) 2.Basu, I., Cordovano, G., Das, I., et al.A transition state analogue of 5'-methylthioadenosine phosphorylase induces apoptosis in head and neck cancersJ. Biol. Chem.282(29)21477-21486(2007)
| Cas No. | 653592-04-2 | SDF | |
| 别名 | MTDIA; Methylthio-DADMe-Immucillin A | ||
| Canonical SMILES | O[C@H]1CN(CC2=CNC3=C(N)N=CN=C32)C[C@@H]1CSC | ||
| 分子式 | C13H19N5OS | 分子量 | 293.39 |
| 溶解度 | DMSO : ≥ 33.33 mg/mL (113.60 mM) | 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 | 3.4084 mL | 17.0422 mL | 34.0843 mL |
| 5 mM | 0.6817 mL | 3.4084 mL | 6.8169 mL |
| 10 mM | 0.3408 mL | 1.7042 mL | 3.4084 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。
A transition state analogue of 5'-methylthioadenosine phosphorylase induces apoptosis in head and neck cancers
J Biol Chem 2007 Jul 20;282(29):21477-86.PMID:17548352DOI:10.1074/jbc.M702287200.
Methylthio-DADMe-immucillin-A (MT-DADMe-ImmA) is an 86-pm inhibitor of human 5'-methylthioadenosine phosphorylase (MTAP). The sole function of MTAP is to recycle 5'-methylthioadenosine (MTA) to S-adenosylmethionine. Treatment of cultured cells with MT-DADMe-ImmA and MTA inhibited MTAP, increased cellular MTA concentrations, decreased polyamines, and induced apoptosis in FaDu and Cal27, two head and neck squamous cell carcinoma cell lines. The same treatment did not induce apoptosis in normal human fibroblast cell lines (CRL2522 and GM02037) or in MCF7, a breast cancer cell line with an MTAP gene deletion. MT-DADMe-ImmA alone did not induce apoptosis in any cell line, implicating MTA as the active agent. Treatment of sensitive cells caused loss of mitochondrial inner membrane potential, G(2)/M arrest, activation of mitochondria-dependent caspases, and apoptosis. Changes in cellular polyamines and MTA levels occurred in both responsive and nonresponsive cells, suggesting cell-specific epigenetic effects. A survey of aberrant DNA methylation in genomic DNA using a microarray of 12,288 CpG island clones revealed decreased CpG island methylation in treated FaDu cells compared with untreated cells. FaDu tumors in a mouse xenograft model were treated with MT-DADMe-ImmA, resulting in tumor remission. The selective action of MT-DADMe-ImmA on head and neck squamous cell carcinoma cells suggests potential as an agent for treatment of cancers sensitive to reduced CpG island methylation.
Structural rationale for the affinity of pico- and femtomolar transition state analogues of Escherichia coli 5'-methylthioadenosine/S-adenosylhomocysteine nucleosidase
J Biol Chem 2005 May 6;280(18):18274-82.PMID:15746096DOI:10.1074/jbc.M414471200.
Immucillin and DADMe-Immucillin inhibitors are tight binding transition state mimics of purine nucleoside phosphorylases (PNP). 5'-Methylthioadenosine/S-adenosylhomocysteine nucleosidase (MTAN) is proposed to form a similar transition state structure as PNP. The companion paper describes modifications of the Immucillin and DADMe-Immucillin inhibitors to better match transition state features of MTAN and have led to 5'-thio aromatic substitutions that extend the inhibition constants to the femtomolar range (Singh, V., Evans, G. B., Lenz, D. H., Mason, J., Clinch, K., Mee, S., Painter, G. F., Tyler, P. C., Furneaux, R. H., Lee, J. E., Howell, P. L., and Schramm, V. L. (2005) J. Biol. Chem. 280, 18265-18273). 5'-Methylthio-Immucillin A (MT-ImmA) and 5'-methylthio-DADMe-Immucillin A (MT-DADMe-ImmA) exhibit slow-onset inhibition with K(i)(*) of 77 and 2 pm, respectively, and were selected for structural analysis as the parent compounds of each class of transition state analogue. The crystal structures of Escherichia coli MTAN complexed with MT-ImmA and MT-DADMe-ImmA were determined to 2.2 A resolution and compared with the existing MTAN inhibitor complexes. These MTAN-transition state complexes are among the tightest binding enzyme-ligand complexes ever described and analysis of their mode of binding provides extraordinary insight into the structural basis for their affinity. The MTAN-MT-ImmA complex reveals the presence of a new ion pair between the 4'-iminoribitol atom and the nucleophilic water (WAT3) that captures key features of the transition state. Similarly, in the MTAN-MT-DADMe-ImmA complex a favorable hydrogen bond or ion pair interaction between the cationic 1'-pyrrolidine atom and WAT3 is crucial for tight affinity. Distance analysis of the nucleophile and leaving group show that MT-ImmA is a mimic of an early transition state, while MT-DADMe-ImmA is a better mimic of the highly dissociated transition state of E. coli MTAN.