1. Epigenetics
  2. Epigenetic Reader Domain
  3. Molibresib

Molibresib  (Synonyms: I-BET762; GSK525762; GSK525762A)

目录号: HY-13032 纯度: 99.85%
COA 产品使用指南

Molibresib (I-BET762; GSK525762) 是 BET 溴结构域 抑制剂,IC50 为32.5-42.5 nM。

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Molibresib Chemical Structure

Molibresib Chemical Structure

CAS No. : 1260907-17-2

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规格 价格 是否有货 数量
10 mM * 1 mL in DMSO ¥1026
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2 mg ¥750
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5 mg ¥1100
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10 mg ¥1960
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50 mg ¥7610
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200 mg   询价  

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Customer Review

Other Forms of Molibresib:

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Top Publications Citing Use of Products

    Molibresib purchased from MCE. Usage Cited in: Nat Med. 2017 Sep;23(9):1055-1062.  [Abstract]

    Western blot of WCL of C4-2 cells treated with vehicle (DMSO) or different doses of JQ1 or i-BET for 24 h. Actin is used as a loading control.

    Molibresib purchased from MCE. Usage Cited in: Oncotarget. 2016 Jun 21;7(25):38319-38332.  [Abstract]

    iBET762 partially disrupts the interaction between full-length ERG and BRD4 (A), and between T1-E4 ERG and BRD4 (B).
    • 生物活性

    • 实验参考方法

    • 纯度 & 产品资料

    • 参考文献

    生物活性

    Molibresib (I-BET762; GSK525762) is a BET bromodomain inhibitor with IC50 of 32.5-42.5 nM.

    IC50 & Target

    IC50: 32.5-42.5 nM (BET)[1]

    体外研究
    (In Vitro)

    Molibresib (I-BET 762) shows the highest affinity interaction with BET. Molibresib binds to the tandem bromodomains of BET with high affinity (dissociation constant Kd of 50.5-61.3 nM). Molibresib displaces, with high efficacy (half-maximum inhibitory concentration IC50 of 32.5-42.5 nM), a tetra-acetylated H4 peptide that had been pre-bound to tandem bromodomains of BET[1]. Molibresib has high affinity for BD1/BD2 domain of BRD2/3/4 proteins. Molibresib treatment leads to a reduction in the recruitment of all three proteins to chromatin[2]. Molibresib inhibits OPM-2 cell proliferation with IC50 of 60.15 nM[3].

    MCE has not independently confirmed the accuracy of these methods. They are for reference only.

    体内研究
    (In Vivo)

    The antimyeloma activity of Molibresib (I-BET 762) is tested dosed orally in an in vivo systemic xenograft model generated by injecting OPM-2 cells into NOD-SCID mice. Daily oral doses of Molibresib up to 10 mg/kg and 30 mg/kg given every other day are well tolerated with no clear impact on body weight compared with vehicle control. The plasma hLC concentration is significantly reduced in mice treated with Molibresib[3].

    MCE has not independently confirmed the accuracy of these methods. They are for reference only.

    Clinical Trial
    分子量

    423.90

    Formula

    C22H22ClN5O2

    CAS 号
    性状

    固体

    颜色

    Off-white to yellow

    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 2 years
    -20°C 1 year
    溶解性数据
    In Vitro: 

    DMSO 中的溶解度 : 200 mg/mL (471.81 mM; 超声助溶; 吸湿的 DMSO 对产品的溶解度有显著影响,请使用新开封的 DMSO)

    1M HCl 中的溶解度 : 100 mg/mL (235.90 mM; 超声助溶; 酸性条件溶解 (HCL 调节,pH≈1))

    配制储备液
    浓度 溶剂体积 质量 1 mg 5 mg 10 mg
    1 mM 2.3590 mL 11.7952 mL 23.5905 mL
    5 mM 0.4718 mL 2.3590 mL 4.7181 mL
    查看完整储备液配制表

    * 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, 2 years; -20°C, 1 year。-80°C储存时,请在2年内使用, -20°C储存时,请在1年内使用。

    • 摩尔计算器

    • 稀释计算器

    Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

    质量
    =
    浓度
    ×
    体积
    ×
    分子量 *

    Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

    This equation is commonly abbreviated as: C1V1 = C2V2

    浓度 (start)

    C1

    ×
    体积 (start)

    V1

    =
    浓度 (final)

    C2

    ×
    体积 (final)

    V2

    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

    • 方案 一

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

      Solubility: ≥ 2.5 mg/mL (5.90 mM); 澄清溶液

      此方案可获得 ≥ 2.5 mg/mL(饱和度未知)的澄清溶液。

      1 mL 工作液为例,取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中,混合均匀;再向上述体系中加入 50 μL Tween-80,混合均匀;然后再继续加入 450 μL 生理盐水 定容至 1 mL

      生理盐水的配制:将 0.9 g 氯化钠,溶解于 ddH₂O 并定容至 100 mL,可以得到澄清透明的生理盐水溶液。
    • 方案 二

      请依序添加每种溶剂: 5% DMSO    40% PEG300    5% Tween-80    50% Saline

      Solubility: ≥ 2.5 mg/mL (5.90 mM); 澄清溶液

    动物溶解方案计算器
    请输入动物实验的基本信息:

    给药剂量

    mg/kg

    动物的平均体重

    g

    每只动物的给药体积

    μL

    动物数量

    由于实验过程有损耗,建议您多配一只动物的量
    请输入您的动物体内配方组成:
    %
    DMSO +
    +
    %
    Tween-80 +
    %
    Saline
    如果您的动物是免疫缺陷鼠或者体弱鼠,建议 DMSO 中的在最后工作液体系中的占比尽量不超过 2%。
    方案所需 助溶剂 包括:DMSO ,均可在 MCE 网站选购。 Tween 80,均可在 MCE 网站选购。
    计算结果
    工作液所需浓度 : mg/mL
    储备液配制方法 : mg 药物溶于 μL  DMSO(母液浓度为 mg/mL)。
    您所需的储备液浓度超过该产品的实测溶解度,以下方案仅供参考,如有需要,请与 MCE 中国技术支持联系。
    动物实验体内工作液的配制方法 : 取 μL DMSO 储备液,加入 μL  μL ,混合均匀至澄清,再加 μL Tween 80,混合均匀至澄清,再加 μL 生理盐水
    连续给药周期超过半月以上,请谨慎选择该方案。
    请确保第一步储备液溶解至澄清状态,从左到右依次添加助溶剂。您可采用超声加热 (超声清洗仪,建议频次 20-40 kHz),涡旋吹打等方式辅助溶解。
    纯度 & 产品资料

    纯度: 99.85%

    参考文献
    Cell Assay
    [2]

    VCaP, LNCaP, 22RV1, DU145 and PC3 prostate cancer cell lines are seeded in 96-well plates at 2000-10,000 cells/well (optimum density for growth) in a total volume of 100μL media containing 10% FBS. Serially diluted compounds in 100μL media are added to the cells 12hr later. Following 96 hr. incubation, cell viability is assessed by Cell-Titer GLO. The values are normalized and IC50 is calculated using GraphPad Prism software. For long-term colony formation assay, 10,000-50,000 cells/well are seeded in six-well plates and treated with either 100 nM or 500 nM of JQ1 or DMSO. After 12 days cells are fixed with methanol, stained with crystal violet and photographed. For colorimetric assays, the stained wells are treated with 500μL 10% acetic acid and the absorbance is measured at 560nm using a spectrophotometer[2].

    MCE has not independently confirmed the accuracy of these methods. They are for reference only.

    Animal Administration
    [3]

    Mice[3]
    The antimyeloma efficacy of orally administered Molibresib is tested in a systemic xenograft myeloma model. For this purpose, sublethally irradiated (200 cGy) NOD/SCID mice age 9 to 11 weeks are given 107 OPM-2 myeloma cells via tail vein injection. On day 15 following inoculation, animals are started on oral treatment with Molibresib at escalating doses or vehicle (1% methylcellulose and 0.2% sodium lauryl sulfate), which is continued up to day 83. Specifically, 1 group of mice are treated with vehicle and 4 groups with different dosing schedules of Molibresib: 3 mg/kg per day; 10 mg/kg per day; 30 mg/kg on alternate days; and 30 to 20 mg/kg per day (ie, 30 mg/kg per day for 14 days, followed by 2 weeks [days 15 to 31] off treatment [drug is withheld due to a decline in body weight until animals has regained weight], follow by 20 mg/kg per day until termination of the experiment [days 43 to 82]). Blood samples (~70 μL) are removed at 0.5 hours after oral administration of Molibresib on day 15 (treatment initiation); days 27, 45, and 82 (3, 10, and 20 to 30 mg/kg once per day groups only); and day 83 (30 mg/kg once every other day group only). The blood is centrifuged to obtain 20 μL plasma and stored at -20°C prior to analysis for Molibresib by using a specific liquid chromatography/mass spectrometry/mass spectrometry assay.

    MCE has not independently confirmed the accuracy of these methods. They are for reference only.

    参考文献

    Molibresib 相关分类

    完整储备液配制表

    * 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, 2 years; -20°C, 1 year。-80°C储存时,请在2年内使用, -20°C储存时,请在1年内使用。

    可选溶剂 浓度 溶剂体积 质量 1 mg 5 mg 10 mg 25 mg
    1M HCl / DMSO 1 mM 2.3590 mL 11.7952 mL 23.5905 mL 58.9762 mL
    5 mM 0.4718 mL 2.3590 mL 4.7181 mL 11.7952 mL
    10 mM 0.2359 mL 1.1795 mL 2.3590 mL 5.8976 mL
    15 mM 0.1573 mL 0.7863 mL 1.5727 mL 3.9317 mL
    20 mM 0.1180 mL 0.5898 mL 1.1795 mL 2.9488 mL
    25 mM 0.0944 mL 0.4718 mL 0.9436 mL 2.3590 mL
    30 mM 0.0786 mL 0.3932 mL 0.7863 mL 1.9659 mL
    40 mM 0.0590 mL 0.2949 mL 0.5898 mL 1.4744 mL
    50 mM 0.0472 mL 0.2359 mL 0.4718 mL 1.1795 mL
    60 mM 0.0393 mL 0.1966 mL 0.3932 mL 0.9829 mL
    80 mM 0.0295 mL 0.1474 mL 0.2949 mL 0.7372 mL
    100 mM 0.0236 mL 0.1180 mL 0.2359 mL 0.5898 mL
    Help & FAQs
    • Do most proteins show cross-species activity?

      Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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