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JK184

Alias: JK-184; JK 184; JK184
Cat No.:V2942 Purity: ≥98%
JK184 is a novel and potent Hedgehog (Hh) pathway inhibitor with IC50of 30 nM in mammalian cells.
JK184
JK184 Chemical Structure CAS No.: 315703-52-7
Product category: Hedgehog(Smoothened) ROCK
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

JK184 is a novel and potent Hedgehog (Hh) pathway inhibitor with IC50 of 30 nM in mammalian cells. JK184 can specially inhibit glioma (Gli)-dependent transcriptional activity in the Hedgehog (Hh) pathway in a dose dependent manner and showed great promise for cancer therapeutics. JK184 significantly inhibits proliferation of HUVECs with IC50 of 6.3 μg/mL after three days incubation. To evaluate anti-tumor effect of JK184, MTT assay is conducted in Panc-1 and BxPC-3 cells after administration with indicated concentrations of compounds, half maximal inhibitory concentration (IC50) of JK184 (23.7 ng/mL in anc-1 and 34.3 ng/mL in BxPC-3).

Biological Activity I Assay Protocols (From Reference)
ln Vitro
JK184 is intended to counteract Hh signaling by dose-dependently suppressing transcriptional activity that is glioma (Gli)-dependent. After three days incubation, JK184 significantly inhibits HUVEC proliferation, with an IC50 of 6.3 μg/mL. After administering the indicated concentrations of compounds to Panc-1 and BxPC-3 cells, the half maximal inhibitory concentration (IC50) of JK184 is measured (23.7 ng/mL in Anc-1 and 34.3 ng/mL in BxPC-3)[1]. This assay is used to assess the anti-tumor effect of JK184. Compared to MCF10a, MTSV1-7, HMLE-shGFP, and HMLE-pBP cells, claudin-low cell lines are more susceptible to JK184 treatment. In these cell lines, JK184 caused a dose-dependent reduction in the levels of GLI1 (glioma-associated oncogene homolog 1) transcript and protein. The percentage of HMLE-shEcad cells that stained with Annexin-V but tested negative for propidium iodide (PI) (P<0.0001, t test) increases when treated with the IC50 dose of JK184[2].
ln Vivo
JK184 (5 mg/kg, intravenously injected) is a promising candidate for an antitumor drug that targets Hh signaling because it shows good anti-proliferative activity in subcutaneous Panc-1 and BxPC-3 tumor models. JK184, however, has a subpar bioavailability and pharmacokinetic profile [1].
Animal Protocol
5 mg/kg, injected intravenously
Mice with Panc-1 and BxPC-3 tumor models
References

[1]. Biodegradable polymeric micelles encapsulated JK184 suppress tumor growth through inhibiting Hedgehog signaling pathway. Nanoscale. 2015 Feb 14;7(6):2609-24.

[2]. Significance of glioma-associated oncogene homolog 1 (GLI1) expression in claudin-low breast cancer and crosstalk with the nuclear factor kappa-light-chain-enhancer of activated B cells (NFκB) pathway. Breast Cancer Res. 2014 Sep 25;16.

These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C19H18N4OS
Molecular Weight
350.44
Exact Mass
350.12
CAS #
315703-52-7
Related CAS #
315703-52-7
PubChem CID
1069686
Appearance
Off-white to pink solid powder
Density
1.3±0.1 g/cm3
Index of Refraction
1.683
LogP
4.04
Hydrogen Bond Donor Count
1
Hydrogen Bond Acceptor Count
5
Rotatable Bond Count
5
Heavy Atom Count
25
Complexity
432
Defined Atom Stereocenter Count
0
InChi Key
ROYXIPOUVGDTAO-UHFFFAOYSA-N
InChi Code
InChI=1S/C19H18N4OS/c1-3-24-15-9-7-14(8-10-15)21-19-22-16(12-25-19)18-13(2)20-17-6-4-5-11-23(17)18/h4-12H,3H2,1-2H3,(H,21,22)
Chemical Name
N-(4-ethoxyphenyl)-4-(2-methylimidazo[1,2-a]pyridin-3-yl)-1,3-thiazol-2-amine
Synonyms
JK-184; JK 184; JK184
HS Tariff Code
2934.99.9001
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:10 mM in DMSO
Water:<1 mg/mL
Ethanol:<1 mg/mL
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 2.5 mg/mL (7.13 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

Solubility in Formulation 2: ≥ 2.5 mg/mL (7.13 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly.
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.

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Solubility in Formulation 3: ≥ 2.5 mg/mL (7.13 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly.


 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 2.8536 mL 14.2678 mL 28.5356 mL
5 mM 0.5707 mL 2.8536 mL 5.7071 mL
10 mM 0.2854 mL 1.4268 mL 2.8536 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)
  • Click the “Calculate” button
  • 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)
  • Click the “Calculate” button
  • 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
  • JK184

    JK184 is more effective at inhibiting EMT cell proliferation.2014 Sep 25;16(5):444.

  • JK184

    JK184 inhibits growth of claudin-low cell lines.2014 Sep 25;16(5):444.

  • JK184

    Decrease inGLI1expression inhibits cell migration and anchorage-independent growth.2014 Sep 25;16(5):444.

  • JK184

    EMT and claudin-low cells are insensitive to Hedgehog (Hh) pathway inhibitors.2014 Sep 25;16(5):444.

  • JK184

    Crosstalk between NFκB and GLI1 signaling pathways.2014 Sep 25;16(5):444.

  • JK184

    Claudin-low cell lines express higher transcript and protein levels ofGLI1.2014 Sep 25;16(5):444.

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