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Inolitazone

PPARgamma agonist CAS# 223132-37-4

Inolitazone

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Chemical structure

Inolitazone

3D structure

Chemical Properties of Inolitazone

Cas No. 223132-37-4 SDF Download SDF
PubChem ID 9832447 Appearance Powder
Formula C27H26N4O4S M.Wt 502.58
Type of Compound N/A Storage Desiccate at -20°C
Synonyms Efatutazone; CS-7017; RS5444
Solubility DMSO
Chemical Name 5-[[4-[[6-(4-amino-3,5-dimethylphenoxy)-1-methylbenzimidazol-2-yl]methoxy]phenyl]methyl]-1,3-thiazolidine-2,4-dione
SMILES CC1=CC(=CC(=C1N)C)OC2=CC3=C(C=C2)N=C(N3C)COC4=CC=C(C=C4)CC5C(=O)NC(=O)S5
Standard InChIKey JCYNMRJCUYVDBC-UHFFFAOYSA-N
Standard InChI InChI=1S/C27H26N4O4S/c1-15-10-20(11-16(2)25(15)28)35-19-8-9-21-22(13-19)31(3)24(29-21)14-34-18-6-4-17(5-7-18)12-23-26(32)30-27(33)36-23/h4-11,13,23H,12,14,28H2,1-3H3,(H,30,32,33)
General tips For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months.
We recommend that you prepare and use the solution on the same day. However, if the test schedule requires, the stock solutions can be prepared in advance, and the stock solution must be sealed and stored below -20℃. In general, the stock solution can be kept for several months.
Before use, we recommend that you leave the vial at room temperature for at least an hour before opening it.
About Packaging 1. The packaging of the product may be reversed during transportation, cause the high purity compounds to adhere to the neck or cap of the vial.Take the vail out of its packaging and shake gently until the compounds fall to the bottom of the vial.
2. For liquid products, please centrifuge at 500xg to gather the liquid to the bottom of the vial.
3. Try to avoid loss or contamination during the experiment.
Shipping Condition Packaging according to customer requirements(5mg, 10mg, 20mg and more). Ship via FedEx, DHL, UPS, EMS or other couriers with RT, or blue ice upon request.

Biological Activity of Inolitazone

DescriptionInolitazone a novel high-affinity PPARγ agonist that is dependent upon PPARγ for its biological activity with IC50 of 0.8 nM for growth inhibition.In Vitro:Inolitazone (RS5444) upregulates the cell cycle kinase inhibitor, p21 WAF1/CIP1. Silencing p21 WAF1/CIP1 rendered cells insensitive to Inolitazone. A 10 nM dose of Inolitazone activates PPARγ:RXRα-dependent transcription as demonstrated in a transient transfection assay utilizing a PPRE response element fused to a luciferase reporter gene (PPRE3-tk-luc). DRO cells are treated in culture with Inolitazone, Rosiglitazone, or Troglitazone at the indicated concentrations. DRO cells are transiently transfected with PPRE3-tk-luc to examine effective concentrations at which EC50 occurs. The EC50s are 1 nM (Inolitazone), 65 nM (Rosiglitazone) and 631 nM (Troglitazone). Similarly, the calculated inhibitory concentration at IC50 is 0.8 nM for Inolitazone, 75 nM for Rosiglitazone, and 1412 nM for Troglitazone. Inolitazone specifically activates PPARγ, but not PPARα or PPARδ. Exposure of 10 nM Inolitazone following transient transfection with the appropriate PPAR isoform (γ, α, or δ) and PPAR response element linked to a luciferase reporter in RIE rat small intestinal cell line, which does not express PPARs, yields increased luciferase activity only in the presence of PPARγ and PPRE3-tk-luc[1]. DRO cells are growth inhibited by 10 nM Inolitazone (RS5444) through a PPARγ-dependent mechanism[2].In Vivo:Inolitazone (RS5444) plus Paclitaxel demonstrate additive antiproliferative activity in cell culture and minimal ATC tumor growth. When Inolitazone is administered in the diet to athymic nude mice prior to DRO tumor cell implantation, tumor growth is inhibited in a dose responsive fashion. At the highest dose, 0.025% Inolitazone inhibits growth on day 32 by 94.4% as compared to that of control. In this treatment group, five of 10 animals do not develop demonstrable tumors. In the 0.0025% treatment group, tumor growth is inhibited by 62.3% compared to that of control on day 32 while the 0.00025% dose demonstrated no growth inhibitory activity as compared to control. Tumors is nest allowed to establish in the mouse and began 0.025% Inolitazone treatment of mice 1 week after DRO or ARO tumor cell implantation. Inolitazone treated animals demonstrate tumor growth inhibition of 68.9% in DRO tumors and 48.3% in ARO tumors as compared to that of their respective controls on day 35[1].

References:
[1]. Copland JA, et al. Novel high-affinity PPARgamma agonist alone and in combination with paclitaxel inhibits human anaplastic thyroid carcinoma tumor growth via p21WAF1/CIP1. Oncogene. 2006 Apr 13;25(16):2304-17. [2]. Marlow LA, et al. Reactivation of suppressed RhoB is a critical step for the inhibition of anaplastic thyroid cancer growth. Cancer Res. 2009 Feb 15;69(4):1536-44.

Protocol

Cell Assay [1]
DRO90-1 (DRO) and ARO81 (ARO) cells are plated in 12-well culture plates in triplicate for each condition at an initial concentration of 2×104 cells/well. After overnight incubation, cells are treated with either Inolitazone, Rosiglitazone, Troglitazone, GW9662, or Paclitaxel diluted in DMSO at concentrations indicated in figure legends. All cells receive identical volumes of DMSO and are exposed to each drug for 6 days with medium and drug changed every 48 h. After 6 days, cells are washed with PBS, trypsinized and counted by Beckman Coulter Counter[1].

Animal Administration [1]
Mice[1] Suspensions of 1×106/0.1 mL DRO or ARO cells in RPMI medium are injected subcutaneously in one flank of 3-4 week athymic female nude mice. Mice are changed to specialized diets either 1 week prior or 1 week after tumor implantation and randomly assigned to experimental or control groups with 10 mice per group. Diets consisted either placebo, 0.00025%, 0.0025%, or 0.025% Inolitazone formulated into the diet. Mice weighed between 20-25 g and consume on average 4 g of food per day. For combinatorial studies either placebo, 10 mg/kg or 15 mg/kg paclitaxel is injected i.p. twice weekly. Tumors are measured every 3-4 days for 35 days with calipers and tumor volumes are calculated by the formula: 0.5236(a×b×c), where a is the shortest diameter, b is the diameter perpendicular to a and c is the diameter height.

References:
[1]. Copland JA, et al. Novel high-affinity PPARgamma agonist alone and in combination with paclitaxel inhibits human anaplastic thyroid carcinoma tumor growth via p21WAF1/CIP1. Oncogene. 2006 Apr 13;25(16):2304-17. [2]. Marlow LA, et al. Reactivation of suppressed RhoB is a critical step for the inhibition of anaplastic thyroid cancer growth. Cancer Res. 2009 Feb 15;69(4):1536-44.

Inolitazone Dilution Calculator

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Inolitazone Molarity Calculator

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Preparing Stock Solutions of Inolitazone

1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 1.9897 mL 9.9487 mL 19.8973 mL 39.7947 mL 49.7433 mL
5 mM 0.3979 mL 1.9897 mL 3.9795 mL 7.9589 mL 9.9487 mL
10 mM 0.199 mL 0.9949 mL 1.9897 mL 3.9795 mL 4.9743 mL
50 mM 0.0398 mL 0.199 mL 0.3979 mL 0.7959 mL 0.9949 mL
100 mM 0.0199 mL 0.0995 mL 0.199 mL 0.3979 mL 0.4974 mL
* Note: If you are in the process of experiment, it's necessary to make the dilution ratios of the samples. The dilution data above is only for reference. Normally, it's can get a better solubility within lower of Concentrations.

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Background on Inolitazone

Description: IC50 Value: 0.8 nM [1] Inolitazone(RS5444) is a novel high-affinity PPARgamma agonist, which activates PPARgamma with an EC50 about 1/50th that of rosiglitazone and has no effect on RIE cells that do not express PPARgamma. in vitro: In vitro, the IC50 for growth inhibition is approximately 0.8 nM while anaplastic thyroid carcinoma (ATC) tumor growth was inhibited three- to fourfold in nude mice. siRNA against PPARgamma and a pharmacological antagonist demonstrated that functional PPARgamma was required for growth inhibitory activity of RS5444. RS5444 upregulated the cell cycle kinase inhibitor, p21WAF1/CIP1 [1]. RS5444inhibited culture growth and caused irreversible G1 arrest, but did not induce apoptosis. In addition, RS5444 caused dramatic changes in cellular morphology which were associated with increased motility and diminished cellular adherence, but no increase in the ability of such cells to digest and invade Matrigel [2]. Treatment with RS5444 leads to the up-regulation of RhoB and subsequent activation of p21, and that silencing of RhoB by RNAi blocks the ability of RS5444 to induce p21 and to inhibit ATC cells proliferation [3]. in vivo: The median peak efatutazone blood level was 8.6 ng/mL for 0.15-mg dosing vs 22.0 ng/mL for 0.3-mg twice daily dosing [4]. Although efatutazone treatment did not reduce percentage of mice developing invasive cancer, it significantly reduced prevalence of noninvasive cancer and total number of cancers per mouse and increased prevalence of well-differentiated cancer subtypes not usually seen in this mouse model [5]. Clinical trial: CS-7017 in Combination with Carboplatin/Paclitaxel in Subjects with Stage IIIb/IV Non-small Cell Lung Cancer (NSCLC). Phase 1b

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Inolitazone a novel high-affinity PPARγ agonist that is dependent upon PPARγ for its biological activity with IC50 of 0.8 nM for growth inhibition.

Keywords:

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