Ponatinib (AP24534) 化学構造
分子量: 532.56



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製品説明 Ponatinib (AP24534) は、PI3KγとPI4KIIIβの新しくて強力な阻害剤で、IC50 がそれぞれ16 nM と 19 nMになる。
ターゲット Abl PDGFRα VEGFR2 FGFR1 Src
IC50 0.37 nM 1.1 nM 1.5 nM 2.2 nM 5.4 nM [1]
In vitro試験 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試験 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]
臨床試験 AP24534 is currently under Phase II clinical trials in treatment with leukemia.

プロトコル (参考用のみ)

キナーゼアッセイ: [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.

細胞アッセイ: [2]

細胞株 Ba/F3 cells expressing Bcr-Abl or a range of single mutations in the kinase domain of Bcr-Abl
濃度 0-625 nM
反応時間 72 hours
実験の流れ 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

動物実験: [1]

動物モデル Mouse xenograft models of Ba/F3 cells expressing Bcr-Abl or Bcr-AblT315I
製剤 Dissolved in 25 mM citrate buffer, pH 2.75
投薬量 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
投与方法 Oral gavage once daily

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

SpeciesMouseRatRabbitGuinea pigHamsterDogMonkeyBaboon
Weight (kg)
Body Surface Area (m2)0.0070.0250.
Km factor361285201220
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)



Download Ponatinib (AP24534) SDF
分子量 532.56


CAS No. 943319-70-8
保管 2年-20℃
6月-80℃in solvent
別名 N/A
溶解度 (25°C) * In vitro DMSO 30 mg/mL (56.33 mM)
<1 mg/mL (<1 mM)
エタノール <1 mg/mL (<1 mM)
In vivo 30% PEG400/0.5% Tween80/5% propylene glycol 10 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.
化学名 3-(2-(imidazo[1,2-b]pyridazin-3-yl)ethynyl)-4-methyl-N-(4-((4-methylpiperazin-1-yl)methyl)-3-(trifluoromethyl)phenyl)benzamide

カスタマーフィードバック (2)

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Source Cancer Cell, 2012, 22(5), 656-667 . Ponatinib (AP24534) purchased from Selleck
Method Western blot
Cell Lines RCH-ACV cells
Concentrations 50 nM
Incubation Time 1-24 h
Results Treatment of these cells with a CSK inhibitor (BMS-599626) or a BTK inhibitor (PCI-32765) did not recapitulate the dasatinib/ponatinib phenotype.

Click to enlarge
Source , , Genome Biol, 2014, 15(8): 428 . Ponatinib (AP24534) purchased from Selleck
Method Cell Proliferation Assay
Cell Lines KatoIII cells
Concentrations 0-0.5 nM
Incubation Time
Results Each of the inhibitors demonstrated a statistically significant lower IC50 in FGFR2-amplified KatoIII cells compared to non-FGFR2-amplified AGS cells at all concentrations tested.

文献中の引用 (23)



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Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description