Quizartinib (AC220)

Quizartinib (AC220) is a second-generation FLT3 inhibitor for Flt3(ITD/WT) with IC50 of 1.1 nM/4.2 nM in MV4-11 and RS4;11 cells, respectively, 10-fold more selective for Flt3 than KIT, PDGFRα, PDGFRβ, RET, and CSF-1R. Quizartinib (AC220) induces apoptosis of tumor cells. Phase 3.

Quizartinib (AC220)化学構造

CAS No. 950769-58-1

サイズ 価格(税別) 在庫状況
10mM (1mL in DMSO) JPY 44500 国内在庫あり
JPY 29500 国内在庫あり
JPY 55500 国内在庫あり
JPY 145500 国内在庫あり

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Quizartinib (AC220)関連製品

Target Protein Ligand阻害剤の選択性比較

Cell Data

Cell Lines Assay Type Concentration Incubation Time 活性情報 PMID
MV4-11 Function assay 0.01 to 100 nM 1 hr Inhibition of FLT3 ITD mutant in human MV4-11 cells assessed as decrease in MEK1/2 phosphorylation at S217/221 at 0.01 to 100 nM after 1 hr by immunoblot analysis 29672049
MV4-11 Function assay 0.01 to 100 nM 1 hr Inhibition of FLT3 ITD mutant in human MV4-11 cells assessed as decrease in AKT phosphorylation at S473 at 0.01 to 100 nM after 1 hr by immunoblot analysis 29672049
BA/F3 Growth inhibition assay 72 hrs Growth inhibition of mouse BA/F3 cells after 72 hrs by calcein AM dye-based fluorescence assay, GI50 = 1.452 μM. 29672049
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生物活性

製品説明 Quizartinib (AC220) is a second-generation FLT3 inhibitor for Flt3(ITD/WT) with IC50 of 1.1 nM/4.2 nM in MV4-11 and RS4;11 cells, respectively, 10-fold more selective for Flt3 than KIT, PDGFRα, PDGFRβ, RET, and CSF-1R. Quizartinib (AC220) induces apoptosis of tumor cells. Phase 3.
特性 The most potent cellular FLT3-ITD inhibitor.
Targets
FLT3 (ITD) [1]
(MV4-11 cells)
FLT3 (WT) [1]
(RS4;11 cells)
1.1 nM 4.2 nM
In Vitro
In vitro AC220, a unique, potent and selective inhibitor of FLT3, has high affinity for FLT3 with a Kd value of 1.6 nM. AC220 inhibits the autophosphorylation of FLT3 in the human leukemia cell lines MV4-11 which harbor a homozygous FLT3-ITD mutation and is FLT3 dependent, and RS4;11 which expresses wild-type FLT3 with IC50 values of 1.1 nM and 4.2 nM, respectively. AC220 is the most potent cellular FLT3-ITD inhibitor, leading to the most significant inhibition of MV4-11 cell proliferation with IC50 of 0.56 nM compared to all other FLT3 inhibitors whose IC50 values range from 0.87 nM to 64 nM. AC220 has no inhibitory activity against the proliferation of A375 cells which harbor an activating mutation in BRAF and are not FLT3 dependent, indicating a large window between FLT3 inhibition and general cytotoxic effects. [1]
Kinase Assay Inhibition of FLT3 autophosphorylation
To measure inhibition of FLT3 autophosphorylation, MV4-11 or RS4;11 cells are cultured in low serum media (0.5% FBS) overnight and seeded at a density of 400 000 cells per well in a 96-well plate the following day. The cells are incubated with different concentrations of AC220 for 2 hours at 37 °C. To induce FLT3 autophosphorylation in RS4;11 cells, 100 ng/mL FLT3 ligand is added for 15 minutes after the 2-hour AC220 incubation. Cell lysates are prepared and incubated in 96-well plates precoated with a total FLT3 capture antibody. The coated plates are incubated with either a biotinylated antibody against FLT3 to detect total FLT3 or an antibody against phosphotyrosines to detect FLT3 autophosphorylation. In both cases, a SULFO-tagged streptavidin secondary antibody is used for electrochemiluminescence detection on the Meso Scale Discovery platform. The concentration of AC220 that inhibits FLT3-ITD or TLT3-WT autophosphorylation by 50% represents IC50 value
細胞実験 細胞株 MV4-11 and RS4;11 cells
濃度 Dissolved in DMSO, final concentration ~20 μM
反応時間 72 hours
実験の流れ Cells are cultured overnight in low serum media (0.5% FBS), seeded in a 96-well plate at 40 000 cells per well and exposed to AC220 for 72 hours at 37 °C. Cell viability is measured using the Cell Titer-Blue Cell Viability Assa
実験結果図 Methods Biomarkers 結果図 PMID
Western blot p-STAT5 / STAT5 / β-catenin / p-AKT / AKT / p-ERK / ERK / p-S6 / S6 phospho-FLT3 / FLT3 28625976
Immunofluorescence WGA / FLT3 28895560
Growth inhibition assay Cell viability 23967177
In Vivo
In Vivo Oral administration of AC220 (10 mg/kg) induces time-dependent inhibition of FLT3 autophosphorylation in the FLT3-ITD–dependent MV4-11 tumor xenograft mouse model; the inhibition being 90% at 2 hours and 40% at 24 hours. AC220 significantly extends survival in a mouse model of FLT3-ITD AML with doses as low as 1 mg/kg given orally once a day. Treatment with AC220 at 10 mg/kg for 28 days results in rapid and complete regression of tumors in all mice with no tumor regrowth during the 60-day posttreatment period. AC220 displays more significant efficacy compared to sunitinib treatment which causes tumors to shrink slowly and resume growth immediately upon discontinuation of treatment in all but one of the mice. [1]
動物実験 動物モデル Female NU/NU or severe combined immunodeficient mice implanted with MV4-11 cells
投与量 ~10 mg/kg
投与経路 Oral gavage
NCT Number Recruitment Conditions Sponsor/Collaborators Start Date Phases
NCT04473664 Completed
Hepatic Impairment|Moderate Impaired Hepatic Function
Daiichi Sankyo
September 22 2020 Phase 1
NCT04459585 Completed
Healthy Subjects|Drug-drug Interaction|Pharmacokinetics|Quizartinib
Daiichi Sankyo Co. Ltd.|Daiichi Sankyo
August 28 2020 Early Phase 1
NCT04459598 Completed
Healthy Subjects|Drug-drug Interaction|Pharmacokinetics|Quizartinib
Daiichi Sankyo Co. Ltd.|Daiichi Sankyo
August 19 2020 Phase 1
NCT04209725 Terminated
Leukemia Myeloid Acute
SCRI Development Innovations LLC
June 3 2020 Phase 2

化学情報

分子量 560.67 化学式

C29H32N6O4S

CAS No. 950769-58-1 SDF Download Quizartinib (AC220) SDFをダウンロードする
Smiles CC(C)(C)C1=CC(=NO1)NC(=O)NC2=CC=C(C=C2)C3=CN4C5=C(C=C(C=C5)OCCN6CCOCC6)SC4=N3
保管

In vitro
Batch:

DMSO : 100 mg/mL ( (178.35 mM); 吸湿したDMSOは溶解度を減少させます。新しいDMSOをご使用ください。)

Water : Insoluble

Ethanol : Insoluble

モル濃度計算器

in vivo
Batch:

Add solvents to the product individually and in order.

投与溶液組成計算機
Clear solution
5%DMSO 40% 5% 50%ddH2O
0.5mg/ml (0.89mM) Taking the 1 mL working solution as an example, add 50 μL of 10 mg/ml clarified DMSO stock solution to 400 μL of PEG300, mix evenly to clarify it; add 50 μL of Tween80 to the above system, mix evenly to clarify it; then continue to add 500 μL of ddH2O to adjust the volume to 1 mL. The mixed solution should be used immediately for optimal results. 

実験計算

モル濃度計算器

質量 濃度 体積 分子量

投与溶液組成計算機(クリア溶液)

ステップ1:実験データを入力してください。(実験操作によるロスを考慮し、動物数を1匹分多くして計算・調製することを推奨します)

mg/kg g μL

ステップ2:投与溶媒の組成を入力してください。(ロット毎に適した溶解組成が異なる場合があります。詳細については弊社までお問い合わせください)

% DMSO % % Tween 80 % ddH2O
%DMSO %

計算結果:

投与溶媒濃度: mg/ml;

DMSOストック溶液調製方法: mg 試薬を μL DMSOに溶解する(濃度 mg/mL, 注:濃度が当該ロットのDMSO溶解度を超える場合はご連絡ください。 )

投与溶媒調製方法:Take μL DMSOストック溶液に μL PEG300,を加え、完全溶解後μL Tween 80,を加えて完全溶解させた後 μL ddH2O,を加え完全に溶解させます。

投与溶媒調製方法:μL DMSOストック溶液に μL Corn oil,を加え、完全溶解。

注意:1.ストック溶液に沈殿、混濁などがないことをご確認ください;
2.順番通りに溶剤を加えてください。次のステップに進む前に溶液に沈殿、混濁などがないことを確認してから加えてください。ボルテックス、ソニケーション、水浴加熱など物理的な方法で溶解を早めることは可能です。

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よくある質問(FAQ)

質問1:
Is it possible to alter the captisol concentration to make it more dissolvable i.e 20% or 25% captisol ?

回答
In 15% Captisol, the compound forms s suspension at 30mg/ml. Increasing the percentage of Captisol will not convert the mixture into solution. You can use suspension for oral gavage feeding.

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