Danusertib (PHA-739358)

Catalog No.S1107

Danusertib (PHA-739358) is an Aurora kinase inhibitor for Aurora A/B/C with IC50 of 13 nM/79 nM/61 nM in cell-free assays, modestly potent to Abl, TrkA, c-RET and FGFR1, and less potent to Lck, VEGFR2/3, c-Kit, CDK2, etc. Phase 2.

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Danusertib (PHA-739358) Chemical Structure

Danusertib (PHA-739358) Chemical Structure
Molecular Weight: 474.55

Validation & Quality Control

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Product Information

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  • Research Area
  • Inhibition Profile
  • Danusertib (PHA-739358) Mechanism

Product Description

Biological Activity

Description Danusertib (PHA-739358) is an Aurora kinase inhibitor for Aurora A/B/C with IC50 of 13 nM/79 nM/61 nM in cell-free assays, modestly potent to Abl, TrkA, c-RET and FGFR1, and less potent to Lck, VEGFR2/3, c-Kit, CDK2, etc. Phase 2.
Targets Aurora A [1]
(Cell-free assay)
Abl [1]
(Cell-free assay)
RET [1]
(Cell-free assay)
TrkA [1]
(Cell-free assay)

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IC50 13 nM 25 nM 31 nM 31 nM
In vitro Danusertib inhibits the activities of other kinases such as FGFR1, Abl, Ret and Trka, with IC50 of 47 nM, 25 nM, 31 nM and 31 nM, respectively. In a cell assay, after treatment of wild-type and p53-deficient MEFs with Danusertib, the wild-type cells undergo an arrest in mitosis (4N) that is maintained for up to 48 h. The p53-deficient cells on the other hand do not arrest at the 4N DNA stage, but continues with additional rounds of DNA synthesis to become >8N. Treatment with Danusertib results in an increase in p53 protein levels and an associated increase in p21 protein, which is known to be transcriptionally regulated by p53. [1] Increasing concentrations of Danusertib produces a dose-dependent reduction of cell growth after 48 hours in BCR-ABL-positive (K562, BV173) and BCR-ABL-negative (HL60) cells. [3]
In vivo Administration of 25 mg/kg Danusertib (b.d. i.v.) to HL-60 xenograft rats results in 75% inhibition of tumor growth with complete regression in one animal. Danusertib results in biomarker modulation accompanied by inhibition of tumor growth. This is compatible with an expected mechanism of action of aurora kinase inhibition. [1] Danusertib significantly inhibits proliferation of K562 cells and virtually suppressed tumor growth during the 10-day treatment period. [3]

Protocol(Only for Reference)

Kinase Assay: [1]

Biochemical kinase Assays The Km values for ATP and the specific substrate are initially determined, and each assay is then run at optimized ATP (2Km) and substrate (5Km) concentrations. This setting enabled direct comparison of IC50 values of Danusertib across the applied kinase selectivity screening panel for the evaluation of the selectivity profile.

Cell Assay: [3]

Cell lines CD34+ cells
Concentrations 5 μM
Incubation Time 5 days
Method For short-term expansion assays, 1 × 103 CD34+ cells are plated in triplicates in 96-well plates containing 100 μL of serum-free medium per well supplemented with human stem-cell factor (100 ng/mL), human Flt-3 Ligand (100 ng/mL), human thrombopoietin (50 ng/mL), human interleukin-3 and -6 (IL-3 and IL-6, respectively, both 20 ng/mL), and granulocyte colony-stimulating factor (20 ng/mL) along with Danusertib at the indicated concentrations. After 5 days, an additional 100 μL of cytokine and Danusertib containing medium are added. Cell numbers within each individual well are estimated on days 3, 6, and 9 or on days 3, 6, and 12 for healthy donor samples.

Animal Study: [3]

Animal Models Female SCID mice
Formulation In DMSO
Dosages 15 mg/kg
Administration Intraperitoneally

Conversion of different model animals based on BSA (Value based on data from FDA Draft Guidelines)

SpeciesMouseRatRabbitGuinea pigHamsterDog
Weight (kg)
Body Surface Area (m2)0.0070.0250.
Km factor36128520
Animal A (mg/kg) = Animal B (mg/kg) multiplied by  Animal B Km
Animal A Km

For example, to modify the dose of resveratrol used for a mouse (22.4 mg/kg) to a dose based on the BSA for a rat, multiply 22.4 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for resveratrol of 11.2 mg/kg.

Rat dose (mg/kg) = mouse dose (22.4 mg/kg) ×  mouse Km(3)  = 11.2 mg/kg
rat Km(6)


[1] Carpinelli P, et al. Mol Cancer Ther, 2007, 12 Pt 1, 3158-3168.

[2] Fancelli D, et al. J Med Chem, 2006, 49(24), 7247-7251.

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Clinical Trial Information( data from http://clinicaltrials.gov, updated on 2016-07-30)

NCT Number Recruitment Conditions Sponsor
Start Date Phases
NCT00872300 Terminated Multiple Myeloma Nerviano Medical Sciences October 2008 Phase 2
NCT00766324 Completed Metastatic Hormone Refractory Prostate Cancer Nerviano Medical Sciences September 2007 Phase 2
NCT00335868 Active, not recruiting Leukemia Jonsson Comprehensive Cancer Center|National Cancer Insti  ...more Jonsson Comprehensive Cancer Center|National Cancer Institute (NCI) March 2007 Phase 2

Chemical Information

Download Danusertib (PHA-739358) SDF
Molecular Weight (MW) 474.55


CAS No. 827318-97-8
Storage 3 years -20℃powder
2 years -80℃in solvent
Synonyms N/A
Solubility (25°C) * In vitro DMSO 95 mg/mL (200.18 mM)
Water <1 mg/mL (<1 mM)
Ethanol <1 mg/mL (<1 mM)
In vivo 1% DMSO+30% polyethylene glycol+1% Tween 80 30 mg/mL
* <1 mg/ml means slightly soluble or insoluble.
* 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 Name (R)-N-(5-(2-methoxy-2-phenylacetyl)-1,4,5,6-tetrahydropyrrolo[3,4-c]pyrazol-3-yl)-4-(4-methylpiperazin-1-yl)benzamide

Tech Support

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
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