AMG-900

Catalog No.S2719

AMG-900 Chemical Structure

Molecular Weight(MW): 503.58

AMG 900 is a potent and highly selective pan-Aurora kinases inhibitor for Aurora A/B/C with IC50 of 5 nM/4 nM /1 nM. It is >10-fold selective for Aurora kinases than p38α, Tyk2, JNK2, Met and Tie2. Phase 1.

Size Price Stock Quantity  
In DMSO USD 340 In stock
USD 170 In stock
USD 320 In stock
USD 970 In stock
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1 Customer Review

  • AURK inhibitors have significant cytotoxic effect on PCa cells. The cytotoxic effects of the AURK inhibitors were measured by MTS assay after 72 h treatment with these inhibitors. The viability fraction was compared to the untreated cells for each cell line. Error bars represent the SEM. C. Relative cell vability of PCa cells treated with AMG 900 at the concentrations of 0.05, 0.25 and 1.25 μmol/l.

    Am J Transl Res, 2013, 5(3):359-367.. AMG-900 purchased from Selleck.

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Biological Activity

Description AMG 900 is a potent and highly selective pan-Aurora kinases inhibitor for Aurora A/B/C with IC50 of 5 nM/4 nM /1 nM. It is >10-fold selective for Aurora kinases than p38α, Tyk2, JNK2, Met and Tie2. Phase 1.
Targets
Aurora C [1]
(Cell-free assay)
Aurora B [1]
(Cell-free assay)
Aurora A [1]
(Cell-free assay)
p38α [1]
(Cell-free assay)
1 nM 4 nM 5 nM 53 nM
In vitro

AMG 900 is a novel class of ATP-competitive phthalazinamine small molecule inhibitors of aurora kinases. In HeLa cells, AMG 900 inhibits autophosphorylation of aurora-A and -B as well as phosphorylation of histone H3 on Ser, a proximal substrate of aurora-B. The predominant cellular response of tumor cells to AMG 900 treatment is aborted cell division without a prolonged mitotic arrest, which ultimately results in cell death. AMG 900 inhibits the proliferation of 26 tumor cell lines, including cell lines resistant to the antimitotic drug paclitaxel and to other aurora kinase inhibitors (AZD1152, MK-0457, and PHA-739358), at low nanomolar concentrations (about 2- 3 nM). Furthermore, AMG 900 is active in an AZD1152-resistant HCT116 variant cell line that harbors an aurora-B mutation (W221L). [1]

In vivo Oral administration of AMG 900 blocks the phosphorylation of histone H3 in a dose-dependent manner and significantly inhibited the growth of HCT116 tumor xenografts. AMG 900 is broadly active in multiple xenograft models, including 3 multidrugresistant xenograft models, representing 5 tumor types. [1] AMG 900 exhibits a low-to-moderate clearance and a small volume of distribution. Its terminal elimination half-life ranged from 0.6 to 2.4 hours. AMG 900 is well-absorbed in fasted animals with an oral bioavailability of 31% to 107%. Food intake has an effect on rate (rats) or extent (dogs) of AMG 900 oral absorption. The clearance and volume of distribution at steady state in humans are predicted to be 27.3 mL/h/kg and 93.9 mL/kg, respectively. AMG 900 exhibits acceptable PK properties in preclinical species and is predicted to have low clearance in humans. [2]

Protocol

Kinase Assay:[1]
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Enzyme kinase assays:

Recombinant GST- or His-tagged aurora-A (TPX2), and aurora-B proteins are expressed using a baculovirus system and purified by affinity chromatography. AMG 900 activity is assessed using a standardized homogenous time-resolved fluorescence (HTRF) assay. Enzyme assays for 24 other kinases (aurora-C, p38α, TYK2, JNK2, JAK3, c-Met, VEGFR2, p38β, TIE-2, ABL (T315I), ERK1, BTK, JNK3, CDK5, PKAα, JNK1, p70S6K, PKBα, MSK1, LCK, SRC, IGFR, JAK2, and c-KIT) are done internally in a similar manner. Concentrations of enzyme, peptide substrate, and ATP in the reaction are optimized depending on the specific activity of the kinase and measured Km values for their corresponding substrates. AMG 900 is evaluated in a kinome competition binding assay (n = 353 unique kinases) by Ambit Biosciences. AMG 900 is initially screened at a single concentration of 1000 nM, and quantitative binding constants (Kd) are determined for each positive hit (< 20 percentage of control).
Cell Research:[1]
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  • Cell lines: Different tumor cell lines including NCI-H460, MDA-MB231, MES-SA, NCI-H460 PTX, MDA-MB-231 PTX, MES-SA Dx5, and HCT-15.
  • Concentrations: 0.5, 5.0, 50 nM
  • Incubation Time: 48 hours
  • Method: Tumor cells are treated with AMG 900 for 48 hours, washed twice with complete media, and cells are replated at a density of 5000 cells per well in drug-free complete media. Cells are grown until the DMSO control wells are confluent. Cells are stained with crystal violet dye, washed with distilled water, and imaged using a digital scanner.
    (Only for Reference)
Animal Research:[1]
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  • Animal Models: Nude mice bearing established HCT116 tumors
  • Formulation: AM 900 is dissolved in DMSO.
  • Dosages: 3.75, 7.5, or 15 mg/kg
  • Administration: Orally administered
    (Only for Reference)

Solubility (25°C)

In vitro DMSO 100 mg/mL (198.57 mM)
Water Insoluble
Ethanol Insoluble
In vivo Add solvents individually and in order:
1% DMSO+30% polyethylene glycol+1% Tween 80
20 mg/mL

* 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 503.58
Formula

C28H21N7OS

CAS No. 945595-80-2
Storage powder
Synonyms N/A

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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.

Handling Instructions

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Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID