ML327

Alias: ML 327; ML327; ML-327
Cat No.:V4012 Purity: ≥98%
ML327 is a novel potent MYC blocker which also de-represses E-cadherin transcription, partially reverses EMT (Epithelial-to-Mesenchymal Transition), and inhibits cancer cell invasiveness and tumor cell migration in vitro and in vivo.
ML327 Chemical Structure CAS No.: 1883510-31-3
Product category: c-Myc
This product is for research use only, not for human use. We do not sell to patients.
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Purity & Quality Control Documentation

Purity: ≥98%

Product Description

ML327 is a novel potent MYC blocker which also de-represses E-cadherin transcription, partially reverses EMT (Epithelial-to-Mesenchymal Transition), and inhibits cancer cell invasiveness and tumor cell migration in vitro and in vivo. It is not necessary for de novo protein synthesis to induce E-cadherin mRNA expression when ML327 is used. When ML327 treatment is administered in the presence of cycloheximide, a translational inhibitor, the expression of over 2,500 genes is significantly changed in three hours, according to RNA sequencing analysis. The most important upstream transcriptional regulator of several genes whose expressions were changed by ML327 treatment, according to network analysis, is hepatocyte nuclear factor 4-alpha (HNF4α). Additionally, the E-cadherin expression response to ML327 is significantly reduced when HNF4α is depleted through small interfering RNA binding. For all intents and purposes, ML327 is an invaluable resource for comprehending EMT mechanisms and could serve as the foundation for a novel targeted therapeutic approach for carcinomas.

Biological Activity I Assay Protocols (From Reference)
Targets
MYC; E-cadherin (EC50 = 1.0 μM)
ln Vitro
ML327 suppresses the transcription of E-cadherin, partially reversing EMT, and preventing both in vivo and in vitro tumor cell migration and cancer cell invasiveness. De novo protein synthesis is not necessary for the ML327 treatment to induce E-cadherin mRNA expression. RNA sequencing analysis demonstrated that, in the presence of the translational inhibitor cycloheximide, ML327 treatment dramatically changes the expression of over 2,500 genes in less than three hours. Hepatocyte Nuclear Factor 4-alpha (HNF4α) is the most important upstream transcriptional regulator of several genes whose expressions were changed by ML327 treatment, according to network analysis. Furthermore, the E-cadherin expression response to ML327 is significantly attenuated when HNF4α is depleted via small interfering RNA. In conclusion, ML327 is a useful tool for comprehending EMT mechanisms and could serve as the foundation for a cutting-edge targeted treatment approach for carcinomas.
ln Vivo
ML327 treatment causes a three-fold reduction in tumor volume during the course of the two-week treatment period (p=0.02). The tumor explant weights in the mice treated with ML327 are roughly three times lower (p=0.01). Mice given ML327 had a 12% greater weight loss than mice given a vehicle. Treatment with ML327 causes a two-fold reduction in MYCN expression, indicating that ML327 inhibits MYCN expression in xenografts (p=0.0035).
Enzyme Assay
ML327 treatment causes neuroblastoma cells to take on an elongated shape. BE(2)-C cells treated with ML327 exhibit G1 cell cycle arrest, a marked increase in the sub G0 population, and a corresponding decrease in the S phase population. All seven neuroblastoma cell lines exhibit CDH1 expression in response to ML327, which increases CDH1 mRNA expression by a factor of 50 to 1,400. ML327 inhibits the MYC family of oncogenic transcription factors from being expressed in every neuroblastoma cell line that has been tested. The immunoblotting time course exhibits an early repression of N-MYC expression within the first two hours of ML327 (10 µM) treatment. The administration of ML327 also lowers p53 levels. In adherent 2D colony formation (41 vs. 400; p<0.0001) and tetrazolium-based colony formation (p<0.0001), ML327-pretreated cells show reduced proliferative potential. In these in vitro tests, ML327 reduces cell invasion of SW620inv by approximately 60% and cell invasion of H520 by approximately 30% using Matrigel. In NMuMG cells treated with TGF-β1, which induces the epithelial-to-mesenchymal transition (EMT), ML327 partially restores the expression of E-cadherin at the plasma membrane.
Cell Assay
Depending on the cell line, cells are seeded onto 96-well plates at an equivalent density of 3,000 to 10,000, allowed to attach overnight, and then treated with either ML327 (10 μM) or vehicle. Using the cell counting kit, absorbance measurements at 450 nm are obtained every day. Cells are plated at a uniform density, allowed to adhere, and baseline absorbance is measured using a cell counting kit in order to estimate IC50 values. Following treatment with different doses of ML327 (0.1 to 30 μM), cell viability is assessed 72 hours later[1].
Animal Protocol
The described procedures are followed for maintaining 4-to 6-week-old male athymic nude mice. As previously mentioned, xenografts of BE(2)-C cells are created. In summary, ten individuals per group receive subcutaneous injections of 1x106 cells/100 µL of HBSS via a 26-gauge needle in the flanks. Venier calipers are used to measure the two greatest perpendicular tumor diameters in order to assess the mice and keep an eye out for the formation of xenografts every day. The formula [(length×width2)/2] is utilized to estimate the volumes of xenografts. After the tumors grow to a size of 75 to 100 mm3, mice are randomized to intraperitoneal injection twice a day for 14 days, either with 50 mg/kg of ML327 or a control vehicle (70% polyethylene glycol). Every day, weight and tumor volume are recorded. The mice are put to sleep after the two-week treatment period, and the tumors are removed, weighed, and the RNA is isolated[1].
References

[1]. Isoxazole compound ML327 blocks MYC expression and tumor formation in neuroblastoma. Oncotarget. 2017 Jul 20;8(53):91040-91051.

[2]. Small molecule/ML327 mediated transcriptional de-repression of E-cadherin and inhibition of epithelial-to-mesenchymal transition.Oncotarget. 2015 Sep 8;6(26):22934-48.

These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C19H18N4O4
Molecular Weight
366.38
Exact Mass
366.13
Elemental Analysis
C, 62.29; H, 4.95; N, 15.29; O, 17.47
CAS #
1883510-31-3
Related CAS #
1883510-31-3
Appearance
Solid powder
SMILES
C1=CC=C(C=C1)C2=CC(=NO2)C(=O)NCCCNC(=O)C3=CC=CNC3=O
InChi Key
NNNDNXLMQAPQQQ-UHFFFAOYSA-N
InChi Code
InChI=1S/C19H18N4O4/c24-17-14(8-4-9-20-17)18(25)21-10-5-11-22-19(26)15-12-16(27-23-15)13-6-2-1-3-7-13/h1-4,6-9,12H,5,10-11H2,(H,20,24)(H,21,25)(H,22,26)
Chemical Name
N-[3-[(2-oxo-1H-pyridine-3-carbonyl)amino]propyl]-5-phenyl-1,2-oxazole-3-carboxamide
Synonyms
ML 327; ML327; ML-327
HS Tariff Code
2934.99.03.00
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
DMSO: ≥ 30mg/mL
Water: N/A
Ethanol: N/A
Solubility (In Vivo)
Note: Listed below are some common formulations that may be used to formulate products with low water solubility (e.g. < 1 mg/mL), you may test these formulations using a minute amount of products to avoid loss of samples.

Injection Formulations
(e.g. IP/IV/IM/SC)
Injection Formulation 1: DMSO : Tween 80: Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution 50 μL Tween 80 850 μL Saline)
*Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH ₂ O to obtain a clear solution.
Injection Formulation 2: DMSO : PEG300Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL DMSO 400 μLPEG300 50 μL Tween 80 450 μL Saline)
Injection Formulation 3: DMSO : Corn oil = 10 : 90 (i.e. 100 μL DMSO 900 μL Corn oil)
Example: Take the Injection Formulation 3 (DMSO : Corn oil = 10 : 90) as an example, if 1 mL of 2.5 mg/mL working solution is to be prepared, you can take 100 μL 25 mg/mL DMSO stock solution and add to 900 μL corn oil, mix well to obtain a clear or suspension solution (2.5 mg/mL, ready for use in animals).
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Injection Formulation 4: DMSO : 20% SBE-β-CD in saline = 10 : 90 [i.e. 100 μL DMSO 900 μL (20% SBE-β-CD in saline)]
*Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.
Injection Formulation 5: 2-Hydroxypropyl-β-cyclodextrin : Saline = 50 : 50 (i.e. 500 μL 2-Hydroxypropyl-β-cyclodextrin 500 μL Saline)
Injection Formulation 6: DMSO : PEG300 : castor oil : Saline = 5 : 10 : 20 : 65 (i.e. 50 μL DMSO 100 μLPEG300 200 μL castor oil 650 μL Saline)
Injection Formulation 7: Ethanol : Cremophor : Saline = 10: 10 : 80 (i.e. 100 μL Ethanol 100 μL Cremophor 800 μL Saline)
Injection Formulation 8: Dissolve in Cremophor/Ethanol (50 : 50), then diluted by Saline
Injection Formulation 9: EtOH : Corn oil = 10 : 90 (i.e. 100 μL EtOH 900 μL Corn oil)
Injection Formulation 10: EtOH : PEG300Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL EtOH 400 μLPEG300 50 μL Tween 80 450 μL Saline)


Oral Formulations
Oral Formulation 1: Suspend in 0.5% CMC Na (carboxymethylcellulose sodium)
Oral Formulation 2: Suspend in 0.5% Carboxymethyl cellulose
Example: Take the Oral Formulation 1 (Suspend in 0.5% CMC Na) as an example, if 100 mL of 2.5 mg/mL working solution is to be prepared, you can first prepare 0.5% CMC Na solution by measuring 0.5 g CMC Na and dissolve it in 100 mL ddH2O to obtain a clear solution; then add 250 mg of the product to 100 mL 0.5% CMC Na solution, to make the suspension solution (2.5 mg/mL, ready for use in animals).
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Oral Formulation 3: Dissolved in PEG400
Oral Formulation 4: Suspend in 0.2% Carboxymethyl cellulose
Oral Formulation 5: Dissolve in 0.25% Tween 80 and 0.5% Carboxymethyl cellulose
Oral Formulation 6: Mixing with food powders


Note: Please be aware that the above formulations are for reference only. InvivoChem strongly recommends customers to read literature methods/protocols carefully before determining which formulation you should use for in vivo studies, as different compounds have different solubility properties and have to be formulated differently.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 2.7294 mL 13.6470 mL 27.2941 mL
5 mM 0.5459 mL 2.7294 mL 5.4588 mL
10 mM 0.2729 mL 1.3647 mL 2.7294 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

Calculator

Molarity Calculator allows you to calculate the mass, volume, and/or concentration required for a solution, as detailed below:

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An example of molarity calculation using the molarity calculator is shown below:
What is the mass of compound required to make a 10 mM stock solution in 5 ml of DMSO given that the molecular weight of the compound is 350.26 g/mol?
  • Enter 350.26 in the Molecular Weight (MW) box
  • Enter 10 in the Concentration box and choose the correct unit (mM)
  • Enter 5 in the Volume box and choose the correct unit (mL)
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  • The answer of 17.513 mg appears in the Mass box. In a similar way, you may calculate the volume and concentration.

Dilution Calculator allows you to calculate how to dilute a stock solution of known concentrations. For example, you may Enter C1, C2 & V2 to calculate V1, as detailed below:

What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
  • Enter 10 into the Concentration (Start) box and choose the correct unit (mM)
  • Enter 25 into the Concentration (End) box and select the correct unit (mM)
  • Enter 25 into the Volume (End) box and choose the correct unit (mL)
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  • The answer of 62.5 μL (0.1 ml) appears in the Volume (Start) box
g/mol

Molecular Weight Calculator allows you to calculate the molar mass and elemental composition of a compound, as detailed below:

Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
Instructions to calculate molar mass (molecular weight) of a chemical compound:
  • To calculate molar mass of a chemical compound, please enter the chemical/molecular formula and click the “Calculate’ button.
Definitions of molecular mass, molecular weight, molar mass and molar weight:
  • Molecular mass (or molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
  • Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.
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Reconstitution Calculator allows you to calculate the volume of solvent required to reconstitute your vial.

  • Enter the mass of the reagent and the desired reconstitution concentration as well as the correct units
  • Click the “Calculate” button
  • The answer appears in the Volume (to add to vial) box
In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
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Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.

Method for preparing in vivo formulation:Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

Biological Data
  • ML327

    ML327 induces cell death and cell cycle arrest in neuroblastomas.


    ML327

    Effects of ML327 on neuroepithelial differentiation.

    2017 Jul 20;8(53):91040-91051.


  • ML327

    ML327 blocks MYC signaling in neuroblastoma.


    ML327

    Pretreatment with ML327 blocks neuroblastoma proliferative potential and tumor-initiating capacity.

  • ML327

    Growth inhibition of neuroblastoma xenografts by ML327.

    2017 Jul 20;8(53):91040-91051.


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