For research use only.

Catalog No.S1134

17 publications

AT9283 Chemical Structure

CAS No. 896466-04-9

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, Abl1(T315I). Phase 2.

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10mM (1mL in DMSO) EUR 294 In stock
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Selleck's AT9283 has been cited by 17 publications

3 Customer Reviews

  • 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.

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Biological Activity

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, Abl1(T315I). Phase 2.
JAK3 [1]
(Cell-free assay)
JAK2 [1]
(Cell-free assay)
Aurora A [1]
(Cell-free assay)
Aurora B [1]
(Cell-free assay)
Abl1 (T315I) [1]
(Cell-free assay)
1.1 nM 1.2 nM ~3.0 nM ~3.0 nM 4 nM
In vitro

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. [1]

Cell Data
Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID
HCT116 cells MmDKR5l1d3SxeHnjxsBie3OjeR?= NVHYSZJFOTBvMUSg[IF6ew>? NUXNc|BES3m2b4TvfIlkcXS7IHHnZYlve3RiaIXtZY4hUEOWMUG2JINmdGy|IHHzd4V{e2WmIHHzJI52dWKncjDv[kBkd2yxbnnld{Bi\nSncjCxNEB1dyBzNDDkZZl{KGK7IHPvcI9vgSCob4LtbY5oKGG|c3H5MEBKSzVyPUCuNFEzKM7:TR?= M3;PSVE6OTR|NU[3
HT-29 cells M4nHS2Z2dmO2aX;uJIF{e2G7 NWTaWGdlPzJiaB?= NWD0fYd1SW62aYT1cY9zKGGldHn2bZR6KGGpYXnud5QhcHWvYX6gTHQuOjliY3XscJMh[W[2ZYKgO|IhcHK|IHL5JG1VXCCjc4PhfUwhUUN3ME2wMlM5OyEQvF2= M13FOVI{PjZ2MEm5
A549 cells MlHUSpVv[3Srb36gZZN{[Xl? MX23NkBp NX3mcXVKSW62aYT1cY9zKGGldHn2bZR6KGGpYXnud5QhcHWvYX6gRVU1QSClZXzsd{Bi\nSncjC3NkBpenNiYomgUXRVKGG|c3H5MEBKSzVyPUCuOVEzKM7:TR?= NGS3c|czOzZ4NEC5PS=>
LoVo cells MlLhSpVv[3Srb36gZZN{[Xl? MkDFO|IhcA>? NHG0fJhCdnSrdIXtc5Ih[WO2aY\peJkh[WejaX7zeEBpfW2jbjDMc3ZwKGOnbHzzJIFnfGW{IEeyJIhzeyCkeTDNWHQh[XO|YYmsJGlEPTB;MD61OVMh|ryP M4fWSFI{PjZ2MEm5
K562 cells NVLrbohoTnWwY4Tpc44h[XO|YYm= NGqxNGQ4OiCq MWrBcpRqfHWvb4KgZYN1cX[rdImgZYdicW6|dDDoeY1idiCNNU[yJINmdGy|IHHmeIVzKDd{IHjyd{BjgSCPVGSgZZN{[XluIFnDOVA:OS54IN88US=> MYiyN|Y3PDB7OR?=
U937 cells M1KzXmZ2dmO2aX;uJIF{e2G7 MXK3NkBp MlnSRY51cXS3bX;yJIFkfGm4aYT5JIFo[Wmwc4SgbJVu[W5iVUmzO{Bk\WyuczDh[pRmeiB5MjDodpMh[nliTWTUJIF{e2G7 M33nZ|I{PjZ2MEm5

... Click to View More Cell Line Experimental Data

Methods Test Index PMID
Growth inhibition assay
Cell viability; 

PubMed: 21430070     

AT9283 reduces MM cells viability in a dose dependent manner. Cells were treated with increasing doses of AT9283 for 72 hours and cell viability was measured by MTT assay

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%). [1]


Kinase Assay:


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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).
Cell Research:


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  • Cell lines: HCT 116 cells
  • Concentrations: 1 nM - 10 μM
  • Incubation Time: 72 hours
  • Method:

    HCT 116 cells are cultured in DMEM + 10% FBS + GLUTAMAX I. Black 96-well flat-bottomed (clear) tissue culture treated plates are seeded in 200 μL of medium and incubated for approximately 16 hours at 37°C in a humidified atmosphere of 5% CO2 in air. Cells are treated with test compound at nine different concentrations (spanning 1 nM to 10 μM, plus DMSO vehicle control) and then incubated for 72 hours. Polyploidy morphological observations of the cells are then noted. The concentration of AT9283 required to produce a distinct polyploid phenotype is reported. Cells are seeded at a concentration of 75−100 cells/mL relevant culture media onto 6- or 24-well tissue culture plates and allowed to recover for 16 hours. Test compound (11 concentrations spanning 0.1 nM to 10 μM) or vehicle control (DMSO) is added to duplicate wells to give a final DMSO concentration of 0.1%. Following compound addition, colonies are allowed to grow between 10 and 14 days for optimum discrete colony counting. Colonies are fixed in 2 mL of Carnoys fixative (25% acetic acid, 75% MeOH) and stained in 2 mL of 0.4% w/v crystal violet. The numbers of colonies in each well is counted. IC50 values are calculated by sigmoidal dose-response (variable slope) IC50 curves using Prism Graphpad software.

    (Only for Reference)
Animal Research:


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  • Animal Models: HCT116 cells are injected s.c. Into the hind flank of male BALB/c mice.
  • Dosages: 15 mg/kg and 20 mg/kg
  • Administration: Administered via i.p.
    (Only for Reference)

Solubility (25°C)

In vitro DMSO 76 mg/mL (199.25 mM)
Water Insoluble
Ethanol '38 mg/mL
In vivo Add solvents to the product individually and in order(Data is from Selleck tests instead of citations):
2% DMSO+30% PEG 300+ddH2O
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.

Chemical Information

Molecular Weight 381.43


CAS No. 896466-04-9
Storage powder
in solvent
Synonyms N/A
Smiles C1CC1NC(=O)NC2=C(NN=C2)C3=NC4=C(N3)C=C(C=C4)CN5CCOCC5

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 ()
% DMSO % % Tween 80 % ddH2O

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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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Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID