For research use only.
Catalog No.S3046 Synonyms: TAK-536
Molecular Weight(MW): 456.45
Azilsartan is an angiotensin II type 1 (AT1) receptor antagonist with IC50 of 2.6 nM.
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(B) Dose-response curves of each drug for acute G protein or βarr activation derived from the CellKey assay. LOS: Losartan; EXP: EXP3174; TEL: Telmisartan; EPR: Eprosartan; AZI: Azilsartan; OLM: Olmesartan; CAN: Candesartan; VAL: Valsartan; IRB: Irbesartan.
Scientific Reports, 2015, 5:8116.. Azilsartan purchased from Selleck.
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|Description||Azilsartan is an angiotensin II type 1 (AT1) receptor antagonist with IC50 of 2.6 nM.|
|Features||A potent, orally active and specific AII receptor antagonist.|
Azilsartan inhibits the specific binding of 125I-Sar1-Ile8-AII to human angiotensin type 1 receptors. Azilsartan also inhibits the accumulation of AII-induced inositol 1-phosphate (IP1) in the cell-based assay with an IC50 value of 9.2 nM. In isolated rabbit aortic strips, Azilsartan reduces the maximal contractile response to AII with a pD'2 value of 9.9. The inhibitory effects of Azilsartan on contractile responses induced by AII persists after the strips are washed.  Azilsartan suppresses the increase in plasma glucose level in the oral glucose tolerance test (OGTT) without significant change in insulin concentration and improved insulin sensitivity. In skeletal muscle, Azilsartan decreases the expression of TNF-α at doses of 0.001%. In adipose tissue, Azilsartan reduces TNF-α expression but increases the expression of adiponectin, PPARγ, C/EBα, and aP2.  In cultured 3T3-L1 preadipocytes, Azilsartan enhances adipogenesis and exertes greater effects than valsartan on expression of genes encoding peroxisome proliferator-activated receptor-α (PPARα), PPARδ, leptin, adipsin, and adiponectin. Azilsartan also potently inhibits vascular cell proliferation in the absence of exogenously supplemented angiotensin II. 
|In vivo||In Koletsky rats, Azilsartan treatment lowers blood pressure, basal plasma insulin concentration and the homeostasis model assessment of insulin resistance index, and inhibited over-increase of plasma glucose and insulin concentrations during oral glucose tolerance test. Azilsartan downregulates 11β-hydroxysteroid dehydrogenase type 1 expression. |
Radioligand binding studies on human AT1 receptors:A radioligand binding assay is performed by using human AT1 receptor-coated microplates containing 4.4 to 6.2 fmol of receptors/well (10 μg of membrane protein/well). Membrane-coated wells are incubated with 45 μL of assay buffer (50 mM Tris-HCl, 5 mM MgCl2, 1 mM EDTA, and 0.005% CHAPS, pH 7.4) containing various concentrations of Azilsartan at room temperature. After 90 minutes, 5 μL of 125I-Sar1-Ile8-AII (final concentration 0.6 nM) dissolved in assay buffer is added to the wells, and the plate is incubated for 5 hours. In each step, the plate is briefly and gently shaken on a plate shaker. In washout experiments, the membranes are incubated with Azilsartan for 90 minutes, then immediately washed twice with 200 μL/well of assay buffer to remove unbound compounds, and further incubated for 5 hours with 125I-Sar1-Ile8-AII. Membrane-bound radioactivity is counted using a TopCount Microplate Scintillation and Luminescence Counter. In the experiments to estimate the dissociation rate of Azilsartan from AT1 receptors, membranes are incubated for 90 minutes with Azilsartan at a concentration of 30 nM for Azilsartan. Azilsartan inhibits the specific binding of 125I-Sar1-Ile8-AII to human AT1 by approximately 90%. The membranes are then immediately washed twice with 200 μL/well of assay buffer and further incubated with 125I-Sar1-Ile8-AII for 240 minutes. Membrane-bound radioactivity is counted using the TopCount Microplate Scintillation and Luminescence Counterat 30 minutes, 60 minutes, 90 minutes, 120 minutes, 150 minutes, 180 minutes, or 240 minutes. Nonspecific binding of 125I-Sar1-Ile8-AII is estimated in the presence of 10 μM unlabeled AII. Unlabeled AII is added again after washout for the washout experiment. Specific binding is defined as total binding minus nonspecific binding.
|In vitro||DMSO||91 mg/mL (199.36 mM)|
|In vivo||Add solvents to the product individually and in order(Data is from Selleck tests instead of citations):
30% PEG400+0.5% Tween80+5% propylene glycol
For best results, use promptly after mixing.
* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.
In vivo Formulation Calculator (Clear solution)
|Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)|
|Dosage||mg/kg||Average weight of animals||g||Dosing volume per animal||ul||Number of animals|
|Step 2: Enter the in vivo formulation (Different batches have different solubility ratios, please contact Selleck to provide you with the correct ratio)|
|% DMSO % % Tween 80 % ddH2O|
Working concentration： mg/ml；
Method for preparing DMSO master liquid: ： mg drug pre-dissolved in μL DMSO (Master liquid concentration mg/mL，)
Method for preparing in vivo formulation：Take DMSO master liquid, next addμL PEG300， mix and clarify, next addμL Tween 80，mix and clarify, next add μL ddH2O，mix and clarify.
1.Please make sure the liquid is clear before adding the next solvent.
2.Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such as vortex, ultrasound or hot water bath can be used to aid dissolving.
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Clinical Trial Information
|NCT Number||Recruitment||interventions||Conditions||Sponsor/Collaborators||Start Date||Phases|
|NCT03434977||Completed||Drug: TAK-536||Healthy Volunteers||Takeda||February 14 2018||Phase 1|
|NCT03042299||Completed||Drug: TAK-536||Japanese Healthy Adult Male Participants||Takeda||February 10 2017||Phase 1|
|NCT02791438||Completed||Drug: Azilsartan|Drug: Placebo||Pediatric Hypertension||Takeda||August 18 2016||Phase 3|
|NCT02541669||Completed||Drug: TAK-491|Drug: TAK-491 placebo||Healthy Volunteer||Takeda||November 20 2015||Phase 1|
|NCT02451150||Completed||Drug: Azilsartan||Pediatric Hypertension||Takeda||August 2015||Phase 3|
Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.
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