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A939572

Alias: A939572; A-939572; A 939572; SCD1 Inhibitor; Stearoyl-CoA Desaturase 1 Inhibitor;
Cat No.:V9883 Purity: ≥98%
A939572 (A-939572) is is a novel, potent and orally bioavailable inhibitor of stearoyl-CoA desaturase1 (SCD1) with anticancer activity.
A939572
A939572 Chemical Structure CAS No.: 1032229-33-6
Product category: SCD
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

A939572 (A-939572) is is a novel, potent and orally bioavailable inhibitor of stearoyl-CoA desaturase1 (SCD1) with anticancer activity. It inhibits SCD1 with IC50s of<4 nM and 37 nM for mSCD1 and hSCD1, respectively. Stearoyl-CoA desaturase 1 is a novel molecular therapeutic target for clear cell renal cell carcinoma.

Biological Activity I Assay Protocols (From Reference)
Targets

IC50:<4 nM (mSCD1), 37 nM (hSCD1)[1]

ln Vitro
Decrease in desaturation index in a dose-dependent manner is one of the strong in vivo activities of A939572 [1]. SCD1 enzymatic activity is selectively inhibited by a tiny chemical called A939572. On day 5, A939572 showed a statistically significant dose-dependent reduction in the proliferation of Caki1, A498, Caki2, and ACHN (IC50 of 65 nM, 50 nM, 65 nM, and 6 nM, respectively). Compared to the DMSO+BSA control, all five endoplasmic reticulum stress-related gene expression levels were significantly higher in A939572 (SCDi)-treated Caki1 and A498 cells. This enhanced expression could be prevented by adding OA-BSA.
ln Vivo
Tumor volumes (mm3) were measured after 4 weeks of treatment with A939572 (30 mg/kg, po) and Tem, either separately or in combination, in athymic nude mice (nu/nu) bearing A498 ccRCC xenografts. Similar growth responses were seen with A939572 and Tem monotherapy; at study's end, a 20–30% decrease in tumor volume was seen (in comparison to the placebo control); however, data did not approach statistical significance until the last week of treatment. When the research came to an end, the combination treatment group's tumor volume had decreased by over 60% (in comparison to the placebo control group), with notable reductions observed after around a week of therapy [2].
Cell Assay
Cells are plated (0.5 or 1×105/well) in 24-well plates in triplicate. Cells are counted using a Coulter Particle Counter. Oleic acid-albumin is added to media at 5μMol. A939572 stocks are prepared in DMSO. Temsirolimus dosing is performed. Soft agar cultures are prepared by diluting 2× growth medium 1:1 in 1.5% Seaplaque®GTG® agarose, with 500 cells/plate in 60mm culture dishes. Colonies are stained with Giemsa and counted after 3wks[2].
References

[1]. Discovery of piperidine-aryl urea-based stearoyl-CoA desaturase 1 inhibitors. Bioorg Med Chem Lett. 2008 Aug 1;18(15):4298-302.

[2]. Stearoyl-CoA desaturase 1 is a novel molecular therapeutic target for clear cell renal cell carcinoma. Clin Cancer Res. 2013 May 1;19(9):2368-80.

These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C20H22CLN3O3
Molecular Weight
387.8600
Exact Mass
387.135
Elemental Analysis
C, 61.93; H, 5.72; Cl, 9.14; N, 10.83; O, 12.37
CAS #
1032229-33-6
PubChem CID
24905400
Appearance
White to off-white solid powder
Density
1.302 g/cm3
Boiling Point
633.5ºC at 760 mmHg
Flash Point
336.9ºC
LogP
4.176
Hydrogen Bond Donor Count
2
Hydrogen Bond Acceptor Count
3
Rotatable Bond Count
4
Heavy Atom Count
27
Complexity
511
Defined Atom Stereocenter Count
0
SMILES
ClC1=C([H])C([H])=C([H])C([H])=C1OC1([H])C([H])([H])C([H])([H])N(C(N([H])C2=C([H])C([H])=C([H])C(C(N([H])C([H])([H])[H])=O)=C2[H])=O)C([H])([H])C1([H])[H]
InChi Key
DPYTYQFYDLYWHZ-UHFFFAOYSA-N
InChi Code
InChI=1S/C20H22ClN3O3/c1-22-19(25)14-5-4-6-15(13-14)23-20(26)24-11-9-16(10-12-24)27-18-8-3-2-7-17(18)21/h2-8,13,16H,9-12H2,1H3,(H,22,25)(H,23,26)
Chemical Name
4-(2-chlorophenoxy)-N-[3-(methylcarbamoyl)phenyl]piperidine-1-carboxamide
Synonyms
A939572; A-939572; A 939572; SCD1 Inhibitor; Stearoyl-CoA Desaturase 1 Inhibitor;
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 : ~100 mg/mL (~257.82 mM)
H2O : < 0.1 mg/mL
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 2.5 mg/mL (6.45 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 (6.45 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 (6.45 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 2.5782 mL 12.8912 mL 25.7825 mL
5 mM 0.5157 mL 2.5782 mL 5.1565 mL
10 mM 0.2578 mL 1.2891 mL 2.5782 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.

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Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
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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
  • Treatment of ccRCC cells with a small molecule SCD1 inhibitor, A939572, inhibits cell growth and induces apoptosis. (A) Cell proliferative response to dose out of A939572 in Caki1, A498, Caki2, and ACHN ccRCC cell lines. (B) ccRCC proliferation rescue with OA-BSA in A939572 treated ccRCC cell lines. (C) Western blot analysis for PARP cleavage in A939572 treated vs. control, as well as OA-BSA rescue in ccRCC cell lines. (D) Representative phase contrast images of A939572 treated ccRCC cells (A498) +/−OA-BSA rescue at day 5.[2]. von Roemeling CA, et al. Stearoyl-CoA desaturase 1 is a novel molecular therapeutic target for clear cell renal cell carcinoma. Clin Cancer Res. 2013 May 1;19(9):2368-80
  • Inhibition of SCD1 activity in ccRCC induces cell death mediated by endoplasmic reticulum stress response. (A) Western blot analysis for expression of ER stress markers: BiP, CHOP, and spliced XBP1 in response to A939572 treatment or lentiviral silencing of SCD1 in Caki1 and A498. (B) QPCR analysis of ER stress gene expression in Caki1 and A498 cells treated with A939572 (75nM) or shSCD lentivirus +/−OA-BSA rescue after 48Hr. (C) QPCR for ATF6 expression in NT and ATF6 knockdown (shATF6-332) Caki1 and A498 cells treated with DMSO or IC50 dose of A939572 (SCDi) for 48 hours (far left panel). QPCR for ER stress markers CHOP, HERPUD1, and GADD45a in Caki1 (center panel) and A498 (far right panel) ccRCC cells treated with A939572 (IC50 dose for 48 hours); expression is normalized to NT DMSO sample for all groups. Statistically significant correlations between DMSO and SCDi treated NT or shATF6-332 cells are denoted by double asterisk (**). Statistically significant correlations between NT DMSO and each shATF6-332 DMSO and shATF6-332 SCDi are denoted by single asterisk (*). (D) Proliferation of NT and shATF6-332 Caki1 and A498 RCC cells treated with DMSO control or A939572. Doses utilized are as described in panel (C), and cells were counted 72H post-treatment.[2]. von Roemeling CA, et al. Stearoyl-CoA desaturase 1 is a novel molecular therapeutic target for clear cell renal cell carcinoma. Clin Cancer Res. 2013 May 1;19(9):2368-80
  • Treatment of ccRCC cells with SCD1 inhibitor in combination with the mTOR inhibitor Temsirolimus synergistically inhibits tumor cell growth in vivo. (A) In vivo tumor growth analysis and animal weight of A498 ccRCC subcutaneous xenografts in female athymic nude mice treated with A939572 and Temsirolimus alone or in combination versus placebo control (n=10 per group). (B) IHC of tissue harvested from treatment groups stained for Ki67 and CC3 (quantitated by N-score), CD31 (quantitated by I-score), and phospho-mTOR (quantitated by H-score). Average group scores +/− the standard error are reported for each stain. (C) Western blot and quantitation of CHOP expression in all four treatment groups. (D) Model of proposed SCD1 activity in ccRCC model: inhibition of SCD1 blocks desaturation of SFA resulting in an accumulation of SFA species which trigger the ER stress response.[2]. von Roemeling CA, et al. Stearoyl-CoA desaturase 1 is a novel molecular therapeutic target for clear cell renal cell carcinoma. Clin Cancer Res. 2013 May 1;19(9):2368-80
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