KB-0742 dihydrochloride
目录号 : KM5723 CAS No. : 2416874-75-2 纯度 : 98%

KB-0742 dihydrochloride 是一种有效的,选择性的和具有口服活性的 CDK9 抑制剂,对 CDK9/cyclin T1 的 IC50 为 6 nM。KB-0742 dihydrochloride 对 CDK9/cyclin T1 具有选择性,其选择性是其他 CDK 激酶的 50 倍以上。KB-0742 dihydrochloride 具有有效的抗肿瘤活性。

规格 价格 是否有货 数量
5mg
In-stock
10mg
In-stock
25mg
In-stock
50mg
In-stock
100mg 询价 In-stock
200mg 询价 In-stock

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生物活性

KB-0742 dihydrochloride is a potent, selective and orally active CDK9 inhibitor with an IC50 of 6 nM for CDK9/cyclin T1. KB-0742 dihydrochloride is selective for CDK9/cyclin T1 with >50-fold selectivity over other CDK kinases. KB-0742 dihydrochloride has potent anti-tumor activity.

体外研究

KB-0742 (6 hours; 0.1-10 μM; 22Rv1 cells) treatment significant reduction of downstream phosphorylation of RNA Pol II at Ser2 and Ser7, and diminished phosphorylation at Ser5. Global androgen receptor (AR)-FL and AR-V protein levels are significantly reduced starting at 6 h treatment time, which is accompanied by the reduction of phospho-AR levels (Ser81).
KB-0742 (48-72 hours) treatment shows cytostatic effects in prostate cancer and leukemia cell lines. KB-0742 shows antiproliferative activity with GR50s of 0.183 μM and 0.288 μM for 22Rv1 cells and MV-4-11 AML cells, respectively.
In 22Rv1 cells, KB-0742 rapidly downregulates nascent transcription, preferentially depleting short half-life transcripts and AR-driven oncogenic programs.

Western Blot Analysis

Cell Line: 22Rv1 cells
Concentration: 0.1 μM, 0.5 μM, 1 μM, 10 μM
Incubation Time: 6 hours
Result: Significant reduction of downstream phosphorylation of RNA Pol II at Ser2 and Ser7, and diminished phosphorylation at Ser5.
体内研究

KB-0742 (3-30 mg/kg; p.o.; daily; over 21 days) is well tolerated even at high dose, while significantly reducing tumor burden in 22Rv1 human prostate cancer cell line-derived xenograft (CDX) models.

Animal Model: Male CB17-SCID mice injected with 22Rv1 human prostate cancer cells
Dosage: 3 mg/kg, 10 mg/kg, and 30 mg/kg
Administration: p.o.; daily; over 21 days
Result: Significantly reduced tumor growth in castration-resistant prostate cancer (CRPC).
分子式
C16H27Cl2N5
分子量
360.33
CAS号
2416874-75-2
运输条件

Room temperature in continental US; may vary elsewhere.

储存方式

4°C, sealed storage, away from moisture

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

溶解性数据
In Vitro: 

H2O : 100 mg/mL (277.52 mM; Need ultrasonic)

DMSO : 62.5 mg/mL (173.45 mM; Need ultrasonic)

配制储备液
浓度 溶剂体积 质量 1 mg 5 mg 10 mg
1 mM 2.7752 mL 13.8762 mL 27.7523 mL
5 mM 0.5550 mL 2.7752 mL 5.5505 mL
10 mM 0.2775 mL 1.3876 mL 2.7752 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 (sealed storage, away from moisture)。-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 (5.77 mM); Clear solution

    此方案可获得 ≥ 2.08 mg/mL (5.77 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% (20% SBE-β-CD in saline)

    Solubility: ≥ 2.08 mg/mL (5.77 mM); Clear solution

    此方案可获得 ≥ 2.08 mg/mL (5.77 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 900 μL 20% 的 SBE-β-CD 生理盐水水溶液中,混合均匀。

  • 3.

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

    Solubility: ≥ 2.08 mg/mL (5.77 mM); Clear solution

    此方案可获得 ≥ 2.08 mg/mL (5.77 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。

临床试验
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
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