您当前的位置:
IMT1B (Synonyms:LDC203974)
目录号 : KM7631 CAS No. : 2304621-06-3 纯度 : 98%

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。

规格 价格 是否有货 数量
5mg
In-stock
10mg
In-stock
25mg
In-stock
50mg 询价 In-stock
100mg 询价 In-stock

Other Forms of Rapamycin:

KKL Med 的所有产品和服务仅用于科学研究,不能被用于人体,兽医,我们也不向个人提供产品和服务。
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.

体外研究

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.
IMT1B (0.01 nM-10 μM; 72-168 hours) dose-dependently decreases in cell viability in A2780, A549 and HeLa cells.
IMT1B depletes cellular metabolites.
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.

Cell Viability Assay

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

IMT1B (100 mg/kg; p.o.; daily; for four weeks) significantly reduces tumour size in mice containing xenografts.
IMT1B reduces mtDNA transcript levels and respiratory-chain subunit levels in tumours.
IMT1B exhibits good oral bioavailability (mice 101 %) and Cmax (mice 5149 ng/mL) following oral administration (mice 10 mg/kg).
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).

Animal Model: 7-9 weeks female BALB/c nude mice, with A2780 cells xenograft
Dosage: 100 mg/kg
Administration: Oral administration, daily, for four weeks
Result: Led to a clear reduction of tumour volume.
Animal Model: Mice
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).
分子式
C24H21ClFNO6
分子量
473.88
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。

  • 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。

科研文献
暂无相关参考文献
The molarity calculator equation
Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)
The dilution calculator equation
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
This equation is commonly abbreviated as: C1V1 = C2V2