1. Epigenetics
  2. Histone Methyltransferase
  3. MS37452

MS37452 is a potent inhibitor of CBX7 chromodomain binding to H3K27me3, with a Kd of 27.7 μM. MS37452 can derepress transcription of polycomb repressive complex target gene p16/CDKN2A by displacing CBX7 binding to the INK4A/ARF locus in prostate cancer cells.

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MS37452 Chemical Structure

MS37452 Chemical Structure

CAS No. : 423748-02-1

Size Price Stock Quantity
Solid + Solvent
10 mM * 1 mL in DMSO
ready for reconstitution
USD 66 In-stock
Solution
10 mM * 1 mL in DMSO USD 66 In-stock
Solid
5 mg USD 60 In-stock
10 mg USD 100 In-stock
25 mg USD 220 In-stock
50 mg USD 390 In-stock
100 mg USD 670 In-stock
200 mg   Get quote  
500 mg   Get quote  

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Based on 1 publication(s) in Google Scholar

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Description

MS37452 is a potent inhibitor of CBX7 chromodomain binding to H3K27me3, with a Kd of 27.7 μM. MS37452 can derepress transcription of polycomb repressive complex target gene p16/CDKN2A by displacing CBX7 binding to the INK4A/ARF locus in prostate cancer cells[1].

IC50 & Target

CBX7[1]

In Vitro

MS37452 (125-500 μM; 12 hours) significantly increases INK4A/ARF transcript levels up to 25% and 60% for 250 μM and 500 μM, respectively, as compared to the DMSO control[1].
MS37452 (250 μM; 2 hours) treats human PC3 prostate cancer cells for 2 hours reducing CBX7 occupancy across the INK4A/ARF locus[1].
MS37452 (200 µM; 5 days) combined with doxorubicin results in consistently decreased cell viability compared to DMSO treated and single drug treatment[2].
MS37452 (200 µM; 5 days), which is a CBX7 chromodomain inhibitor (CBX7i), in combination with doxorubicin is a novel therapeutic strategy[2].

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

RT-PCR[1]

Cell Line: PC3 cells
Concentration: 125-500 μM
Incubation Time: 12 hours
Result: Up-regulated INK4A/ARF expression up to 25% and 60% for 250 μM and 500 μM, respectively.

Cell Viability Assay[2]

Cell Line: Glioblastoma multiforme (GBM) U118MG cells
Concentration: PRT4165 40 µM, PTC209 200 nM, DZnep 25 µM, GSK343 400 nM, MS37452 200 µM, Doxorubicin 200 nM, temozolomide 50 µM, SAHA 1 µM
Incubation Time: 5 days
Result: Identified several combinations that resulted in consistently decreased cell viability compared to DMSO treated and single drug treatment: SAHA/TMZ and MS37452/doxorubicin.
Molecular Weight

398.45

Formula

C22H26N2O5

CAS No.
Appearance

Solid

Color

Off-white to light yellow

SMILES

CC1=CC(OCC(N2CCN(CC2)C(C3=CC=CC(OC)=C3OC)=O)=O)=CC=C1

Shipping

Room temperature in continental US; may vary elsewhere.

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

DMSO : 100 mg/mL (250.97 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 2.5097 mL 12.5486 mL 25.0972 mL
5 mM 0.5019 mL 2.5097 mL 5.0195 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, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

  • Molarity Calculator

  • Dilution Calculator

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

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

This equation is commonly abbreviated as: C1V1 = C2V2

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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 (6.27 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% (20% SBE-β-CD in Saline)

    Solubility: ≥ 2.5 mg/mL (6.27 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 900 μL 20% SBE-β-CD in Saline, and mix evenly.

    Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.
In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:

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(per animal)

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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
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, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 2.5097 mL 12.5486 mL 25.0973 mL 62.7431 mL
5 mM 0.5019 mL 2.5097 mL 5.0195 mL 12.5486 mL
10 mM 0.2510 mL 1.2549 mL 2.5097 mL 6.2743 mL
15 mM 0.1673 mL 0.8366 mL 1.6732 mL 4.1829 mL
20 mM 0.1255 mL 0.6274 mL 1.2549 mL 3.1372 mL
25 mM 0.1004 mL 0.5019 mL 1.0039 mL 2.5097 mL
30 mM 0.0837 mL 0.4183 mL 0.8366 mL 2.0914 mL
40 mM 0.0627 mL 0.3137 mL 0.6274 mL 1.5686 mL
50 mM 0.0502 mL 0.2510 mL 0.5019 mL 1.2549 mL
60 mM 0.0418 mL 0.2091 mL 0.4183 mL 1.0457 mL
80 mM 0.0314 mL 0.1569 mL 0.3137 mL 0.7843 mL
100 mM 0.0251 mL 0.1255 mL 0.2510 mL 0.6274 mL
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MS37452 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.

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MS37452
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