生物活性分子抑制剂IMT1B(Synonyms: LDC203974)

上海金畔生物科技有限公司为生命科学和医药研发人员提供生物活性分子抑制剂、激动剂、特异性抑制剂、化合物库、重组蛋白,专注于信号通路和疾病研究领域。

IMT1B (Synonyms: LDC203974) 纯度: 98.03%

IMT1B (LDC203974) 是一种具有口服活性的,非竞争性的,特异性的线粒体 RNA 聚合酶 (POLRMT) 别构抑制剂,可抑制线粒体 DNA (mtDNA) 的表达。IMT1B 具有抗肿瘤作用。

IMT1B(Synonyms: LDC203974)

IMT1B Chemical Structure

CAS No. : 2304621-06-3

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10 mg ¥6800 In-stock
25 mg ¥13500 In-stock
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IMT1B 相关产品

相关化合物库:

  • Bioactive Compound Library Plus
  • Anti-Cancer Compound Library
  • Orally Active Compound Library
  • Targeted Diversity Library

生物活性

IMT1B (LDC203974) is an orally active, noncompetitive and specific allosteric inhibitor of mitochondrial RNA polymerase (POLRMT) and inhibits mitochondrial DNA (mtDNA) expression. IMT1B has anti-tumour effects[1].

IC50 & Target

POLRMT[1]

体外研究
(In Vitro)

IMT1B is a noncompetitive inhibitor that causes a conformational change of POLRMT, which blocks substrate binding and transcription in a dose-dependent way in vitro[1].
IMT1B (0.01 nM-10 μM; 72-168 hours) dose-dependently decreases in cell viability in A2780, A549 and HeLa cells[1].
IMT1B depletes cellular metabolites[1].
IMT1B increases the levels of mono- and diphosphate nucleotides that results in a considerable increase in the AMP/ATP ratio and levels of phosphorylated AMPK[1].

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

Cell Viability Assay[1]

Cell Line: A2780 cells
Concentration: 0.01 nM, 1 nM, 10 nM, 100 nM, 1 μM, 10 μM
Incubation Time: 72 hours, 96 hours, 168 hours
Result: Decreased cell viability in a dose-dependent manner.

体内研究
(In Vivo)

IMT1B (100 mg/kg; p.o.; daily; for four weeks) significantly reduces tumour size in mice containing xenografts[1].
IMT1B reduces mtDNA transcript levels and respiratory-chain subunit levels in tumours[1].
IMT1B exhibits good oral bioavailability (mice 101 %) and Cmax (mice 5149 ng/mL) following oral administration (mice 10 mg/kg)[1].
IMT1B exhibits elimination half-life (mice 1.88 h) due to plasma clearance (mice 0.44 L/h/kg) following intravenous administration (mice 1 mg/kg)[1].

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Model: 7-9 weeks female BALB/c nude mice, with A2780 cells xenograft[1]
Dosage: 100 mg/kg
Administration: Oral administration, daily, for four weeks
Result: Led to a clear reduction of tumour volume.
Animal Model: Mice[1]
Dosage: 1 mg/kg for i.v.; 10 mg/kg for oral (Pharmacokinetic Analysis)
Administration: Intravenous administration and oral administration
Result: Oral bioavailability (101%), Cmax (5149 ng/mL), T1/2 (1.88 h).

分子量

473.88

Formula

C24H21ClFNO6

CAS 号

2304621-06-3

运输条件

Room temperature in continental US; may vary elsewhere.

储存方式
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
溶解性数据
In Vitro: 

DMSO : 250 mg/mL (527.56 mM; Need ultrasonic)

配制储备液
浓度 溶剂体积 质量 1 mg 5 mg 10 mg
1 mM 2.1102 mL 10.5512 mL 21.1024 mL
5 mM 0.4220 mL 2.1102 mL 4.2205 mL
10 mM 0.2110 mL 1.0551 mL 2.1102 mL

*

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。

In Vivo:

请根据您的实验动物和给药方式选择适当的溶解方案。以下溶解方案都请先按照 In Vitro 方式配制澄清的储备液,再依次添加助溶剂:

——为保证实验结果的可靠性,澄清的储备液可以根据储存条件,适当保存;体内实验的工作液,建议您现用现配,当天使用; 以下溶剂前显示的百
分比是指该溶剂在您配制终溶液中的体积占比;如在配制过程中出现沉淀、析出现象,可以通过加热和/或超声的方式助溶

  • 1.

    请依序添加每种溶剂: 10% DMSO    40% PEG300    5% Tween-80    45% saline

    Solubility: ≥ 2.08 mg/mL (4.39 mM); Clear solution

    此方案可获得 ≥ 2.08 mg/mL (4.39 mM,饱和度未知) 的澄清溶液。

    以 1 mL 工作液为例,取 100 μL 20.8 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中,混合均匀;向上述体系中加入50 μL Tween-80,混合均匀;然后继续加入 450 μL生理盐水定容至 1 mL。

    将 0.9 g 氯化钠,完全溶解于 100 mL ddH₂O 中,得到澄清透明的生理盐水溶液

  • 2.

    请依序添加每种溶剂: 10% DMSO    90% corn oil

    Solubility: ≥ 2.08 mg/mL (4.39 mM); Clear solution

    此方案可获得 ≥ 2.08 mg/mL (4.39 mM,饱和度未知) 的澄清溶液,此方案不适用于实验周期在半个月以上的实验。

    以 1 mL 工作液为例,取 100 μL 20.8 mg/mL 的澄清 DMSO 储备液加到 900 μL玉米油中,混合均匀。

*以上所有助溶剂都可在 上海金畔生物科技有限公司 网站选购。
参考文献
  • [1]. Nina A Bonekamp, et al. Small-molecule inhibitors of human mitochondrial DNA transcription. Nature. 2020 Dec;588(7839):712-716.

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