Ponatinib

Catalog No.S1490 Batch:S149012

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Technical Data

Formula

C29H27F3N6O
Molecular Weight 532.56 CAS No. 943319-70-8
Solubility (25°C)* In vitro DMSO 25 mg/mL (46.94 mM)
Water Insoluble
Ethanol Insoluble
* <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.
* Room temperature shipping (Stability testing shows this product can be shipped without any cooling measures.)

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Biological Activity

Description Ponatinib is a novel, potent multi-target inhibitor of Abl, PDGFRα, VEGFR2, FGFR1 and Src with IC50 of 0.37 nM, 1.1 nM, 1.5 nM, 2.2 nM and 5.4 nM in cell-free assays, respectively. Ponatinib (AP24534) inhibits autophagy.
Targets
Abl [1]
(Cell-free assay)		 PDGFRα [1]
(Cell-free assay)		 VEGFR2 [1]
(Cell-free assay)		 FGFR1 [1]
(Cell-free assay)		 c-Src [1]
(Cell-free assay)		 View More
0.37 nM 1.1 nM 1.5 nM 2.2 nM 5.4 nM
In vitro AP24534 potently inhibits native Abl, AblT315I, and other clinically important Abl kinase domain mutants with IC50 of 0.30 nM–2 nM. AP24534 doesn't inhibit Aurora kinase family members, nor does it inhibit insulin receptor or CDK2/cyclin E. AP24534 inhibits proliferation of Ba/F3 cells expressing Bcr-Abl with IC50 of 0.5 nM, as well as Ba/F3 cells expressing a range of Bcr-Abl mutants with IC50 of 0.5 nM–36 nM. The inhibition of proliferation by AP24534 is correlated with induction of apoptosis. [1-2] In leukemic cell lines containing activated forms of FLT3, KIT, FGFR1, and PDGFRα receptors, AP24534 potently inhibits receptor phosphorylation and cellular proliferation with IC50 of 0.3 nM to 20 nM. In MV4-11 (FLT3-ITD(+/+)) but not RS4;11 (FLT3-ITD(–/–)) AML cells, AP24534 inhibits FLT3 signaling and induced apoptosis at less than 10 nM. AP24534 inhibits viability of primary leukemic blasts from a FLT3-ITD positive AML patient with IC50 of 4 nM but not those from patients with AML expressing native FLT3. [3] In Ba/F3 cells engineered to express activated FGFR1-4, AP24534 potently inhibits FGFR-mediated signaling and viability with IC50 lower than 40 nM. In cell lines representing multiple tumor types (endometrial, bladder, gastric, breast, lung, and colon), and containing FGFRs dysregulated by a variety of mechanisms, AP24534 inhibits FGFR-mediated signaling with IC50 less than 40 nM and inhibits cell growth with IC50 of 7 nM–181 nM. [4]
In vivo In a mouse xenograft model of Ba/F3 cells expressing native Bcr-Abl, AP24534 (2.5 mg/kg and 5 mg/kg) prolongs mice median survival. In the xenograft model of Ba/F3 Bcr-AblT315I, AP24534 (10 mg/kg–50 mg/kg) significantly suppresses tumor growth. AP24534 (30 mg/kg) decreases the phosphorylated Bcr-Abl and phosphorylated CrkL levels in the tumors. [2]

Protocol (from reference)

Kinase Assay:[1]
  • Peptide substrate phosphorylation assays with GST-Abl kinase domains

    The effect of AP24534 (0-320 nM) on GST-Abl kinase activity is assessed by using a synthetic peptide substrate (Abltide: EAIYAAPFAKKK). Assays are carried out at 30 °C for 15 min in 25 μL reaction mixture: 8 mM MOPS (pH 7), 0.2 mM EDTA, 50 μM Abltide, 30 mM MgCl2, 10 mM β-glycerol phosphate, 1 mM EGTA, 0.002% Brij-35, 0.4 mM DTT, 0.2 mg/mL BSA, 0.4 mM sodium orthovanadate, 10 nM WT or mutant GST-Abl kinase, and 100 µM ATP/γ-32[P]ATP (5000 cpm/pmol). Reactions are terminated by transferring a portion of the reaction mixture onto a p81 phosphocellulose filter and immersing in 0.75% phosphoric acid. Filters are washed 3 times in 0.75% phosphoric acid, rinsed in acetone, and air dried; phosphate incorporation is determined by scintillation counting. All results are corrected for background binding to the filters, as determined by omitting peptide substrate from the kinase reaction. Time course experiments to establish the linear range of enzymatic activity precedes kinase assays.
Cell Assay:[2]
  • Cell lines

    Ba/F3 cells expressing Bcr-Abl or a range of single mutations in the kinase domain of Bcr-Abl

  • Concentrations

    0-625 nM

  • Incubation Time

    72 hours

  • Method

    Ba/F3 cell lines are distributed in 96-well plates (4 × 103 cells/well) and incubated with AP24534 for 72 hours. Proliferation is measured using a methanethiosulfonate (MTS)-based viability assay (CellTiter96 Aqueous One Solution). All values are normalized to the control wells with no drug. IC50 values are reported as the mean of three independent experiments performed in quadruplicat
Animal Study:[1]
  • Animal Models

    Mouse xenograft models of Ba/F3 cells expressing Bcr-Abl or Bcr-AblT315I

  • Dosages

    2.5 mg/kg and 5 mg/kg for Ba/F3 Bcr-Abl; 2.5 mg/kg–50 mg/kg for Ba/F3 Bcr-AblT315I

  • Administration

    Oral gavage once daily

Customer Product Validation

Data from [Cancer Cell, 2012, 22(5), 656-667 ]

, , Mol Cancer Ther, 2017, 16(8):1623-1633

Data from [Data independently produced by , , Nature, 2016, 534(7609):647-51]

Data from [Data independently produced by , , Cancer Discov, 2016, 6(7):727-39.]

Selleck's Ponatinib has been cited by 222 publications

Molecular Interaction of Soluble Klotho with FGF23 in the Pathobiology of Aortic Valve Lesions Induced by Chronic Kidney Disease [ Int J Biol Sci, 2024, 20(9):3412-3425] PubMed: 38993571
Leishmania braziliensis enhances monocyte responses to promote anti-tumor activity [ Cell Rep, 2024, 43(3):113932] PubMed: 38457336
The molecular basis of Abelson kinase regulation by its αI-helix [ Elife, 2024, 12RP92324] PubMed: 38588001
Asciminib Maintains Antibody-Dependent Cellular Cytotoxicity against Leukemic Blasts [ Cancers (Basel), 2024, 16(7)1288] PubMed: 38610966
Synergistic Effects of Neratinib in Combination With Palbociclib or Miransertib in Brain Cancer Cells [ World J Oncol, 2024, 15(3):492-505] PubMed: 38751701
The Combination of Afatinib With Dasatinib or Miransertib Results in Synergistic Growth Inhibition of Stomach Cancer Cells [ World J Oncol, 2024, 15(2):192-208] PubMed: 38545471
Mutation and cell state compatibility is required and targetable in Ph+ acute lymphoblastic leukemia minimal residual disease [ bioRxiv, 2024, 2024.06.06.597767] PubMed: 38915726
Targeting FLT3-TAZ signaling to suppress drug resistance in blast phase chronic myeloid leukemia [ Mol Cancer, 2023, 10.1186/s12943-023-01837-4] PubMed: 37932786
Dual Targeting of Apoptotic and Signaling Pathways in T-Lineage Acute Lymphoblastic Leukemia [ Clin Cancer Res, 2023, 29(16):3151-3161] PubMed: 37363966
A GSTP1-mediated lactic acid signaling promotes tumorigenesis through the PPP oxidative branch [ Cell Death Dis, 2023, 14(7):463] PubMed: 37491277

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SHIPPING AND STORAGE
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