1. Cell Cycle/DNA Damage
  2. Eukaryotic Initiation Factor (eIF)
  3. 4EGI-1


目录号: HY-19831 纯度: >98.0%

4EGI-1 是一种 eIF4E/eIF4G 相互作用抑制剂,抑制 eIF4E 结合,Kd 值为 25 μM。

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4EGI-1 Chemical Structure

4EGI-1 Chemical Structure

CAS No. : 315706-13-9

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Size Price Stock Quantity
10 mM * 1 mL in DMSO ¥1089 In-stock
5 mg ¥990 In-stock
10 mg ¥1300 In-stock
25 mg ¥2400 In-stock
50 mg ¥3500 In-stock
100 mg ¥5800 In-stock
200 mg   Get quote  
500 mg   Get quote  

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Customer Review

Top Publications Citing Use of Products

    4EGI-1 purchased from MCE. Usage Cited in: Nat Commun. 2017 Jun 8;8:15617.

    Immunoblot analysis of KRAS protein levels in parental (P) and resistant derivatives (R1 and R2) following 4 h treatment with the corresponding inhibitors Rapamycin, AZD2014, MLN0128, BEZ235 and 4EGI-1. Images are cropped for clarity from the same exposure of the same membrane.
    • 生物活性

    • 实验参考方法

    • 纯度 & 产品资料

    • 参考文献


    4EGI-1 is an inhibitor of eIF4E/eIF4G interaction, with a Kd of 25 μM against eIF4E binding.

    IC50 & Target

    Kd: 25 μM (eIF4E/eIF4G)[1]

    In Vitro

    4EGI-1 is an inhibitor of eIF4E/eIF4G interaction, with a Kd of 25 μM against eIF4E binding. 4EGI-1 disrupts the eIF4F complex and inhibits expression of oncogenic proteins in mammalian cells. 4EGI-1 (0-40 μM) also exhibits proapoptotic activity and inhibits the growth of multiple cancer cell lines[1]. 4EGI-1 is cytotoxic to breast cancer cells, such as SKBR-3, MCF-7 and MDA-MB-231 cells, with the IC50 of appr 30 μM, and to the non-CSCs (Cancer stem cells), the IC50 is about 22 μM. 4EGI-1 enhances breast CSC differentiation (40 μM), and suppresses breast CSC induced HUVEC tube-like structure formation (8 μM). Moreover, 4EGI-1 selectively inhibits translation that persists in CSC maintenance and dissemination[2]. 4EGI-1 (50 µM) impairs the formation of eIF4F complex in U87 cells. 4EGI-1 (10, 50 and 100 µM) inhibits cell proliferation via inducing apoptosis in U87 cells, and the apoptosis is via Bax activation. 4EGI-1 causes mitochondrial dysfunction, and induces ER stress via GRP-78 activation, in U87 cells[3].

    In Vivo

    4EGI-1 (75 mg/kg, i.p.) inhibits breast cancer stem cells (CSC) tumor growth and tumorangiogenesis in vivo[2]. 4EGI-1 (75 mg/kg, i.p.) shows inhibitory effect on the tumor volume and weight in mice bearing U87 cells[3].

    Molecular Weight




    CAS No.





    Room temperature in continental US; may vary elsewhere.

    Powder -20°C 3 years
      4°C 2 years
    In solvent -80°C 6 months
      -20°C 1 month
    Solvent & Solubility
    In Vitro: 

    DMSO : ≥ 35 mg/mL (77.56 mM)

    H2O : < 0.1 mg/mL (insoluble)

    * "≥" means soluble, but saturation unknown.

    Stock Solutions
    Concentration Solvent Mass 1 mg 5 mg 10 mg
    1 mM 2.2159 mL 11.0796 mL 22.1592 mL
    5 mM 0.4432 mL 2.2159 mL 4.4318 mL
    10 mM 0.2216 mL 1.1080 mL 2.2159 mL

    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

    • 1.

      请依序添加每种溶剂: 10% DMSO    90% (20% SBE-β-CD in saline)

      Solubility: 2.5 mg/mL (5.54 mM); Suspended solution; Need ultrasonic

      此方案可获得 2.5 mg/mL (5.54 mM)的均匀悬浊液,悬浊液可用于口服和腹腔注射。

      以 1 mL 工作液为例,取 100 μL 25.0 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。

      将 2 g 磺丁基醚 β-环糊精加入 5 mL 生理盐水中,再用生理盐水定溶至 10 mL,完全溶解,澄清透明
    *以上所有助溶剂都可在 MCE 网站选购。
    Cell Assay

    1 × 104 breast CSCs HMLER (CD44high/CD24low)FA cells and other indicated breast cancer cells are treated with DMSO, or [E]-4EGI-1 or [Z]-4EGI-1 at series of concentrations for 24 hours. The cells are performed cell viability assays with cell viability assay kit. Three independent experiments are performed. Average IC50 results are shown (mean ± SD, t-test, two-tailed)[2].

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

    Animal Administration

    In the tumor xenografted assay, 1×105 breast cancer stem cells (CSCs) are mixed with 100 μL Matrigel/DMEM mixture (Matrigel: DMEM = 1:2). Breast CSCs/Matrigel/DMEM mixtures are injected into NOD/SCID female mice mammary glands by subcutaneous injection. After the tumor formation (about 75 mm3 in volume, 5 mice/group), DMSO, or 75 mg/kg [E]-4EGI-1, or 75 mg/kg [Z]-4EGI-1 is injected into the mice by intraperitoneal injection daily for 30 days. Tumor volumes are measured every three days. At the 30th day, mice are sacrificed and tumors are excised. Tumors weights are measured. Tumor tissue samples are used for immunohistostaining, Western blot and immunoprecipitation analyses[2].

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

    • 摩尔计算器

    • 稀释计算器

    The molarity calculator equation

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

    Mass   Concentration   Volume   Molecular Weight *
    = × ×

    The dilution calculator equation

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

    This equation is commonly abbreviated as: C1V1 = C2V2

    Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
    × = ×
    C1   V1   C2   V2


    4EGI-1Eukaryotic Initiation Factor (eIF)ApoptosisAutophagyInhibitorinhibitorinhibit


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