MS1943
目录号 : KM7309 CAS No. : 2225938-17-8 纯度 : 98%

MS1943 是一种首创的,具有口服生物活性的 EZH2 选择性降解剂,其IC50 为 120 nM。MS1943 显著降低了许多三阴性乳腺癌和其他癌及非癌细胞系中的EZH2蛋白水平。MS1943 有效地阻止了多个三阴性乳腺癌和其他癌细胞系的增殖。

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5mg
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10mg
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25mg
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50mg
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100mg
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200mg 询价 In-stock
500mg 询价 In-stock

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生物活性

MS1943 is a first-in-class, orally bioavailable EZH2 selective degrader, with an IC50 of 120 nM. MS1943 significantly reduces EZH2 protein levels in numerous triple-negative breast cancer (TNBC) and other cancer and noncancerous cell lines. MS1943 effectively blocks proliferation of multiple TNBC and other cancer cell lines.

体外研究

MS1943 (0.625-5 μM; 3 days) inhibits cell growth with an GI50 of 2.2 µM.
MS1943 (0.625-5 μM; 4 days) induces cell death in MDA-MB-468 cells. MS1943 effectively reduces EZH2 levels in BT549, HCC70 and MDA-MB-231 TNBC cells, as well as KARPAS-422 and SUDHL8 lymphoma cells and PNT2 non-cancerous prostate cells.
MS1943 (1.25-5.0 μM; 2 days) inhibits EZH2 and SUZ12 protein levels in a concentration- and timedependent manner, without affecting EED protein levels, whereas the H3K27me3 mark was also suppressed.

Cell Viability Assay

Cell Line: MDA-MB-468 cells
Concentration: 0.625, 1.25, 2.5, 5 μM
Incubation Time: 3 days
Result: Inhibits cell growth with an GI50 of 2.2 µM.

Western Blot Analysis

Cell Line: MDA-MB-468 cells
Concentration: 1.25, 2.5, 5.0 μM
Incubation Time: 2 days
Result: Reduced EZH2 protein levels in a concentration- and time-dependent manner.
体内研究

MS1943 (150 mg/kg body weight; i.p.; once daily for 36 days) suppresses tumor growth.
MS1943 induces apoptosis in the MDA-MB-468 xenograft model.
A single i.p. injection of MS1943 at 50 mg/kg body weight achieved a peak plasma concentration (Cmax) of 2.9 µM and resulted in plasma concentrations above its cellular IC50 value for ~2h. A single 150 mg/kg body weight p.o. dose achieved Cmax of 1.1 µM, but plasma concentrations were below the cellular IC50 value.

Animal Model: Eight-week-old female BALB/c nude mice (MDA-MB-468 xenografts)
Dosage: 150 mg/kg body weight
Administration: i.p.; once daily for 36 days
Result: Suppresses tumor growth.
分子式
C42H54N8O3
分子量
718.93
CAS号
2225938-17-8
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 : 125 mg/mL (173.87 mM; Need ultrasonic)

配制储备液
浓度 溶剂体积 质量 1 mg 5 mg 10 mg
1 mM 1.3910 mL 6.9548 mL 13.9096 mL
5 mM 0.2782 mL 1.3910 mL 2.7819 mL
10 mM 0.1391 mL 0.6955 mL 1.3910 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: ≥ 6.25 mg/mL (8.69 mM); Clear solution

    此方案可获得 ≥ 6.25 mg/mL (8.69 mM,饱和度未知) 的澄清溶液。

    以 1 mL 工作液为例,取 100 μL 62.5 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: ≥ 6.25 mg/mL (8.69 mM); Clear solution

    此方案可获得 ≥ 6.25 mg/mL (8.69 mM,饱和度未知) 的澄清溶液。

    以 1 mL 工作液为例,取 100 μL 62.5 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: ≥ 6.25 mg/mL (8.69 mM); Clear solution

    此方案可获得 ≥ 6.25 mg/mL (8.69 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 62.5 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
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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