Molecular Weight(MW): 381.43
AT9283 is a potent JAK2/3 inhibitor with IC50 of 1.2 nM/1.1 nM in cell-free assays; also potent to Aurora A/B, Abl(T315I). Phase 2.
Cited by 9 Publications
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HEL cells were treated with 0.5, 1 or 5 uM of AT9283 or left untreated for 3 hrs. The expression and phosphorylation state of STAT5 (P-STAT5) and Jak2 (P-Jak2) was assessed by Western blot immunodetection.
J Cell Mol Med 2013 17(2), 265-76. AT9283 purchased from Selleck.
AM-005 inhibits the growth of HT29 cells in vivo. The tumor volume was measured after intragastric administration of AM-005 (15 mg/kg or 25 mg/kg). The 25 mg/kg AT9283 was used as a positive control. The results are the mean tumor volume盨D for groups of n = 8.
Drug Development Reseach 2013 272-281. AT9283 purchased from Selleck.
HEL cells were treated for 3 hours with the indicated concerntrations of AT9283. AT9283 inhibitors Jak2-V617F mediated signal transduction at submicromolar concentrations in intact cells . At concentrations of 490 nm the Jak2-V617F inhibition is almost complete and has reached almost background levels (for background STAT5 phosphorylation see 4400nm)
Dr. Claude Haan and Catherine Rolvering of Universite du Luxembourg. AT9283 purchased from Selleck.
Purity & Quality Control
Choose Selective JAK Inhibitors
|Description||AT9283 is a potent JAK2/3 inhibitor with IC50 of 1.2 nM/1.1 nM in cell-free assays; also potent to Aurora A/B, Abl(T315I). Phase 2.|
AT9283 leads to a clear polyploid phenotype by inhibiting the activity of Aurora B kinase in HCT116 cells with IC50 of 30 nM. Furthermore, AT9283 also produces the potent inhibition on HCT116 colony formation. 
|In vivo||In HCT116 human colon carcinoma xenograft bearing mice, AT9283 treatment (15 mg/kg and 20 mg/kg) for 16 days results in a significant tumor growth inhibition of 67% and 76%, respectively. In addition, AT9283 also exhibits a significantly longer half-life in tumors(2.5 hours) compared with plasma (0.5 hour) and modest oral bioavailability in mice (Fp.o. = 24%). |
Aurora A and Aurora B Kinase Assays:Assays for Aurora A and B are performed in a DELFIA format. Aurora A enzyme is incubated with AT9283 and 3 μM cross-tide substrate (biotin-CGPKGPGRRGRRRTSSFAEG) in 10 mM MOPS, pH 7, 0.1 mg/mL BSA, 0.001% Brij-35, 0.5% glycerol, 0.2 mM EDTA, 10 mM MgCl2, 0.01% β-mercaptoethanol, 15 μM ATP, and 2.5% DMSO. Aurora B enzyme is incubated with AT9283, 3 μM of the above substrate in 25 mM Tris, pH 8.5, 5 mM MgCl2, 0.1 mg/mL BSA, 0.025% Tween-20, 1 mM DTT, 15 μM ATP, and 2.5% DMSO. Reactions are allowed to proceed for 60 minutes and 45-90 minutes for Aurora A and Aurora B, respectively, before quenching with EDTA. The reaction mixtures are then transferred to a neutravidin-coated plate, and phosphorylated peptide is quantified by means of a phospho-specific antibody and a europium labeled secondary antibody using time-resolved fluorescence (excitation, 337 nm; emission, 620 nm). IC50 values for the control compounds are 92 nM (Aurora A assay) and 17 nM (Aurora B).
|In vitro||DMSO||76 mg/mL (199.25 mM)|
|Ethanol||38 mg/mL (99.62 mM)|
|In vivo||Add solvents individually and in order:
2% DMSO+30% PEG 300+ddH2O
* 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.
Calculate the mass, volume or concentration required for a solution. The Selleck molarity calculator is based on the following equation:
Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)
*When preparing stock solutions, please always use the batch-specific molecular weight of the product found on the via label and MSDS / COA (available on product pages).
Calculate the dilution required to prepare a stock solution. The Selleck dilution calculator is based on the following equation:
Concentration (start) x Volume (start) = Concentration (final) x Volume (final)
This equation is commonly abbreviated as: C1V1 = C2V2 ( Input Output )
* When preparing stock solutions always use the batch-specific molecular weight of the product found on the vial label and MSDS / COA (available online).
Molecular Weight Calculator
Enter the chemical formula of a compound to calculate its molar mass and elemental composition:
Tip: Chemical formula is case sensitive. C10H16N2O2 c10h16n2o2
Instructions to calculate molar mass (molecular weight) of a chemical compound:
To calculate molar mass of a chemical compound, please enter its chemical formula and click 'Calculate'.
Definitions of molecular mass, molecular weight, molar mass and molar weight:
Molecular mass (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.
Clinical Trial Information
|NCT Number||Recruitment||Conditions||Sponsor/Collaborators||Start Date||Phases|
|NCT01431664||Completed||Leukemia||Cancer Research UK||September 2011||Phase 1|
|NCT01145989||Completed||Multiple Myeloma||NCIC Clinical Trials Group|Canadian Cancer Trials Group||June 2010||Phase 2|
|NCT00985868||Completed||Unspecified Childhood Solid Tumor, Protocol Specific||Cancer Research UK||September 2009||Phase 1|
|NCT00443976||Completed||Non-Hodgkins Lymphoma|Unspecified Adult Solid Tumor, Protocol Specific||NCIC Clinical Trials Group|Canadian Cancer Trials Group||January 2007||Phase 1|
|NCT00522990||Terminated||Acute Myeloid Leukemia|Acute Lymphoblastic Leukemia|Chronic Myeloid Leukemia|Myelodysplastic Syndromes|Myelofibrosis||Astex Pharmaceuticals||September 2006||Phase 1|Phase 2|
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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