2. Epigenetics Apoptosis
  3. Epigenetic Reader Domain Apoptosis
  4. GSK1324726A

GSK1324726A  (Synonyms: I-BET726)

Cat. No.: HY-13960 Purity: 99.75%
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GSK1324726A is a novel, potent, and selective inhibitor of BET proteins with high affinity to BRD2 (IC50=41 nM), BRD3 (IC50=31 nM), and BRD4 (IC50=22 nM).

For research use only. We do not sell to patients.

GSK1324726A Chemical Structure

GSK1324726A Chemical Structure

CAS No. : 1300031-52-0

Size Price Stock Quantity
Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO
ready for reconstitution
 USD 99 In-stock
Solution
10 mM * 1 mL in DMSO USD 99 In-stock
Solid
1 mg USD 36 In-stock
5 mg USD 90 In-stock
10 mg USD 145 In-stock
25 mg USD 290 In-stock
50 mg USD 430 In-stock
100 mg USD 645 In-stock
200 mg   Get quote  
500 mg   Get quote  

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This product is a controlled substance and not for sale in your territory.

Customer Review

Based on 6 publication(s) in Google Scholar

GSK1324726A Related Antibodies

Top Publications Citing Use of Products

    GSK1324726A purchased from MedChemExpress. Usage Cited in: J Med Chem. 2018 Jan 25;61(2):504-513.  [Abstract]

    Protein degradation profile of VHL-based BET degraders. Sub-confluent HeLa cells are treated for 24 h with varying concentration of test compounds JQ1(Compound 3), I-BET726 (Compound 4). Protein extracts are separated by SDS-PAGE and then analyzed by Western blot. Proteins Brd4, Brd3, Brd2 and β-actin are probed for JQ1and I-BET726 with specific antibodies.

    • Biological Activity

    • Protocol

    • Purity & Documentation

    • References

    • Customer Review

    Description

    GSK1324726A is a novel, potent, and selective inhibitor of BET proteins with high affinity to BRD2 (IC50=41 nM), BRD3 (IC50=31 nM), and BRD4 (IC50=22 nM).

    IC50 & Target

    IC50: 22 nM (BRD4), 31 nM (BRD3), 41 nM (BRD2)[1]
    In Vitro

    A panel of neuroblastoma cell lines are treated with GSK1324726A (I-BET726), and observed potent growth inhibition and cytotoxicity in most cell lines irrespective of MYCN copy number or expression level. All neuroblastoma cell lines tested exhibit potent growth inhibition, with a median growth IC50 value (gIC50; inhibitor concentration resulting in 50% growth inhibition) equal to 75 nM[1].

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

    GSK1324726A Related Antibodies
    In Vivo

    GSK1324726A (I-BET726) inhibits neuroblastoma tumor growth. In the SK-N-AS model, mice in the vehicle group are euthanized on day 14 due to large tumor size. While there is no significant difference in tumor growth between the vehicle and GSK1324726A (5 mg/kg) group, 58% tumor growth inhibition (TGI) is observed in the GSK1324726A (15 mg/kg) group on day 14 of the study (n=9; p=0.006). Mice in the GSK1324726A (15 mg/kg) group are treated for an additional 7 days before tumor volume reaches a level comparable to that observed in the vehicle group, at which point the study is terminated. Tumors in the CHP-212 model grow much more slowly. After 42 days, tumors in vehicle-treated mice are only half the size those in the SK-N-AS model at the end of the study (Day 14). In the CHP-212 model, treatment with 5 mg/kg GSK1324726A results in TGI equal to 50% (n=8; p=0.1816), and mice in the 15 mg/kg group exhibits a TGI of 82% at the end of the study (n=5; p=0.0488)[1].

    MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
    Molecular Weight

    434.91

    Formula

    C25H23ClN2O3
    CAS No.
    Appearance

    Solid

    Color

    White to light yellow

    SMILES

    ClC1=CC=C(N[C@H]2C3=C(C=CC(C4=CC=C(C(O)=O)C=C4)=C3)N(C(C)=O)[C@@H](C)C2)C=C1
    Shipping

    Room temperature in continental US; may vary elsewhere.
    Storage
    Powder -20°C 3 years
    4°C 2 years
    In solvent -80°C 2 years
    -20°C 1 year
    Solvent & Solubility
    In Vitro: 

    DMSO : ≥ 46 mg/mL (105.77 mM; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

    *"≥" means soluble, but saturation unknown.

    Preparing
    Stock Solutions
    Concentration Solvent Mass 1 mg 5 mg 10 mg
    1 mM 2.2993 mL 11.4966 mL 22.9933 mL
    5 mM 0.4599 mL 2.2993 mL 4.5987 mL
    View the Complete Stock Solution Preparation Table

    * Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
    Storage method and period of stock solution: -80°C, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

    • Molarity Calculator

    • Dilution Calculator

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

    Mass
    =
    Concentration
    ×
    Volume
    ×
    Molecular Weight *

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

    This equation is commonly abbreviated as: C1V1 = C2V2

    Concentration (start)

    C1

    ×
    Volume (start)

    V1

    =
    Concentration (final)

    C2

    ×
    Volume (final)

    V2

    In Vivo:

    Select the appropriate dissolution method based on your experimental animal and administration route.

    For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
    To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for in vivo experiments, it is recommended to prepare freshly and use it on the same day.
    The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

    • Protocol 1

      Add each solvent one by one:  10% DMSO    40% PEG300    5% Tween-80    45% Saline

      Solubility: ≥ 2.5 mg/mL (5.75 mM); Clear solution

      This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).

      Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.

      Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
    • Protocol 2

      Add each solvent one by one:  10% DMSO    90% Corn Oil

      Solubility: ≥ 2.5 mg/mL (5.75 mM); Clear solution

      This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown). If the continuous dosing period exceeds half a month, please choose this protocol carefully.

      Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL Corn oil, and mix evenly.

    In Vivo Dissolution Calculator
    Please enter the basic information of animal experiments:

    Dosage

    mg/kg

    Animal weight
    (per animal)

    g

    Dosing volume
    (per animal)

    μL

    Number of animals

    Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
    Please enter your animal formula composition:
    %
    DMSO +
    % 
    +
    %
    Tween-80 +
    %
    Saline
    Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
    The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).
    Calculation results:
    Working solution concentration: mg/mL
    Method for preparing stock solution: mg drug dissolved in μL  DMSO (Stock solution concentration: mg/mL).
    The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only. If necessary, please contact MedChemExpress (MCE).
    Method for preparing in vivo working solution for animal experiments: Take μL DMSO stock solution, add μL . μL , mix evenly, next add μL Tween 80, mix evenly, then add μL Saline.
     If the continuous dosing period exceeds half a month, please choose this protocol carefully.
    Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
    Purity & Documentation

    Purity: 99.75%

    COA (249 KB) HNMR (280 KB) LCMS (93 KB)

    Handling Instructions (2659 KB)
    References
    Cell Assay
    [1]

    Cell line growth-death assays are performed with a few modifications. Briefly, cells are seeded into 384-well or 96-well plates at a density optimized for 6 days of growth. The following day, T0 measurements are taken using CellTiter-Glo, CellTiter-Fluor, or CyQuant Direct. Plates are read on an Envision, Safire 2, or SpectraMax Gemini EM plate reader. Remaining plates are treated with DMSO or a titration of GSK1324726A. Cells are incubated for 6 days and developed. Results are plotted as a percentage of the T0 value, normalized to 100%, versus concentration of compound. A 4-parameter equation is used to generate concentration response curves. Growth IC50 (gIC50) values are calculated at the mid-point of the growth window (between DMSO and T0 values). Ymin-T0 values are calculated by subtracting the T0 value (100%) from the Ymin value on the curve, and are a measure of net population cell growth or death[1].

    MCE has not independently confirmed the accuracy of these methods. They are for reference only.
    Animal Administration
    [1][2]

    Mice[1]
    CHP-212 (1×107) or SK-N-AS (5×106) cells in 100% matrigel are implanted subcutaneously into the right flank of approximately 9 week old female nude (Crl:CD-1-Foxn1 nu) mice. Tumors are measured with calipers and randomized using stratified sampling according to tumor size into treatment groups of 10 mice. GSK1324726A in vehicle or vehicle alone is administered orally by individual body weight at 10mls/kg. Mice are weighed and tumors are measured with calipers twice weekly, and mice are observed daily for any adverse treatment affects. Mice are euthanized using CO2 inhalation according to AVMA guidelines after two consecutive tumor measurements greater than 2500mm3, or if body weight loss greater than 20% is observed. For mouse pharmacodynamic studies, mice are euthanized as described above. Tumors are harvested from euthanized mice and placed in RNAlater for RNA isolation. Blood is collected after euthanasia via cardiac puncture.
    Rats[2]
    Male CD rats (253-283 g) are surgically prepared with implanted cannulae in the femoral vein (for GSK1324726A administration) and jugular vein (for blood sampling). Each rat receives Duphacillin (100 mg/kg s.c.) and Carprofen (7.5 mg/kg s.c.) as a pre-operative antibiotic and analgesic respectively. Each rat is allowed to recover for at least 2 days prior to dosing. Rats have free access to food and water throughout. Rat PK studies are conducted as a crossover design over 2 dosing occasions, with 3 days between dose administrations. Serial blood samples are taken (via indwelling jugular cannula) up to 26 h post dose administration on both dosing occasions. On study day 1, n=3 male rats each receives a 1 h intravenous infusion of GSK1324726A formulated in DMSO and 10% (w/v) KleptoseTM in saline (2%:98%) at a concentration of 0.2 mg/mL and the dose is filtered using a ca. 0.2 μm syringe filter unit. GSK1324726A is administered as a 1 h i.v. infusion at 5 mL/kg/h to achieve a target dose of 1 mg/kg. On study day 2, the same three rats each receives an oral administration of GSK1324726A suspended in 3% Pharmacoat 603/0.2% Sodium Lauryl Sulphate (w/v) aq. at a concentration of 0.6 mg/mL administered by gavage at 5 mL/kg to achieve a target dose of 3 mg/kg. At the end of the study the rats are euthanised by administration of sodium pentobarbital through the jugular vein cannula.

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

    Complete Stock Solution Preparation Table

    * Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
    Storage method and period of stock solution: -80°C, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

    Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
    DMSO 1 mM 2.2993 mL 11.4966 mL 22.9933 mL 57.4832 mL
    5 mM 0.4599 mL 2.2993 mL 4.5987 mL 11.4966 mL
    10 mM 0.2299 mL 1.1497 mL 2.2993 mL 5.7483 mL
    15 mM 0.1533 mL 0.7664 mL 1.5329 mL 3.8322 mL
    20 mM 0.1150 mL 0.5748 mL 1.1497 mL 2.8742 mL
    25 mM 0.0920 mL 0.4599 mL 0.9197 mL 2.2993 mL
    30 mM 0.0766 mL 0.3832 mL 0.7664 mL 1.9161 mL
    40 mM 0.0575 mL 0.2874 mL 0.5748 mL 1.4371 mL
    50 mM 0.0460 mL 0.2299 mL 0.4599 mL 1.1497 mL
    60 mM 0.0383 mL 0.1916 mL 0.3832 mL 0.9581 mL
    80 mM 0.0287 mL 0.1437 mL 0.2874 mL 0.7185 mL
    100 mM 0.0230 mL 0.1150 mL 0.2299 mL 0.5748 mL
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    GSK1324726A Related Classifications

    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.

    Keywords:

    GSK1324726A1300031-52-0I-BET726Epigenetic Reader DomainApoptosisInhibitorinhibitorinhibit

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