Zotarolimus (ABT-578)

別名:A 179578

Zotarolimus (ABT-578,A 179578) is an analogue of rapamycin, and inhibits FKBP-12 binding with IC50 of 2.8 nM.

Zotarolimus (ABT-578)化学構造

CAS No. 221877-54-9

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Zotarolimus (ABT-578)関連製品

シグナル伝達経路

mTOR阻害剤の選択性比較

生物活性

製品説明 Zotarolimus (ABT-578,A 179578) is an analogue of rapamycin, and inhibits FKBP-12 binding with IC50 of 2.8 nM.
特性 Zotarolimus has a shorter in vivo half-life and is also demonstrated in rats to have less potent systemic immunosuppression than rapamycin.
Targets
FKBP-12 [1]
2.8 nM
In Vitro
In vitro

Zotarolimus (ABT-578) is a semi-synthetic analogue of rapamycin, made by substituting a tetrazole ring for the native hydroxyl group at position 42 in rapamycin. Zotarolimus is highly effective in inhibiting both smooth muscle cell and endothelial cell proliferation, with IC50 values of 2.9 nM and 2.6 nM, respectively. [1] Zotarolimus is mechanistically similar to sirolimus in having high-affinity binding to the immunophilin FKBP12 and comparable potency for inhibiting in vitro proliferation of both human and rat T cells. Zotarolimus inhibits Con A-induced human T cells and rat T cells proliferation with IC50 of 7.0 nM and 1337 nM respectively. [2]

Kinase Assay Binding Affinity to FKBP12
96-well microtiter plates are first coated with FKBP-12 CMP-KDO synthetase fusion protein at 10 μg/mL, 100 μL/well for 2-3 h, followed by addition of 50 μL/well of buffer A (2% BSA and 0.2% Tween-20 in D-PBS) for 30-60 min. Microtiter plates are then washed three times with buffer B (0.2% Tween in D-PBS, pH adjusted to 7.4). Fifty microlitres of buffer A (for maximum), 20 μM FK506 in buffer A (for background), or various concentrations of zotarolimus (10 pM-1 μM) in buffer A are added to each well followed by addition of 50 μL of A-79397 (an FK506 analogue)-alkaline phosphatase conjugate in buffer A. Microtiter plates are incubated at room temperature for 2-2.5 h followed by three washes with buffer B. About 100 μL of pNPP (p-nitrophenyl-phosphate) in 0.1 M aminomethylpropanol are added to each well and plates are incubated at room temperature for 90-120 min. Absorbance at 405 nM is read using an ELISA plate
細胞実験 細胞株 Human coronary artery cells
濃度 ~1 μM
反応時間 5 days
実験の流れ

Cell proliferation is assayed by measuring tritiated thymidine incorporation in vitro. Human coronary artery cells (hCa) are seeded into tissue culture flasks for expansion and applied to 96-well plates at desired density in complete media (5000 hCaSMC; 10 000 hCaEC). After 2 days, complete media is replaced with incomplete media to synchronize cells and induce G0 state. Two days later, incomplete media are removed and replaced with complete media (serum/growth factors) to induce G0 to G1 transition. Complete media also contain drug at desired concentrations to determine its effects on cell proliferation. On day 7, 3H-thymidine is added to cells to monitor DNA synthesis, and cells are harvested after overnight incorporation of radioactivity. After an incubation period of 72 h, 25 μL (1 μCi/well) of 3H-thymidine are added to each well. The cells are incubated at 37°C for 16-18 h to allow for incorporation of 3H-thymidine into newly synthesized DNA and the cells harvested onto 96-well plates containing bonded glass fibre filters . The filter plates are air-dried overnight, MicroScint-20 (25 μL) added to each filter well and counted. Drug activity is determined by the inhibition of 3H-thymidine incorporation into newly synthesized DNA relative to cells grown in complete media.

In Vivo
In Vivo

Zotarolimus-eluting stents effectively reduce neointima formation in a 28-day, well-characterized swine model of coronary artery restenosis. Zotarolimus appears effective in preventing neointimal thickening, reducing late loss from 1.03 to 0.62 mm with a 47% reduction in TVF compared with bare metal stents (15.4% with the Driver stent to 8.1% with the Endeavor stent). [1] Zotarolimus is efficacious in suppressing adjuvant DTH, EAE, and cardiac allograft rejection with ED50 values of 1.72, 1.17, and 3.71 mg/kg/day, respectively. [2]

動物実験 動物モデル Male Sprague-Dawley rats
投与量 2.5 mg/kg
投与経路 intravenous or oral
NCT Number Recruitment Conditions Sponsor/Collaborators Start Date Phases
NCT01239654 Completed
Acute Coronary Syndrome
IRCCS San Raffaele|Mediolanum Cardio Research|Cardiovascular Research Foundation New York
September 2010 Phase 3
NCT01003717 Completed
Coronary Artery Disease
Rebecca Torguson|Medstar Health Research Institute
October 2009 --
NCT00846846 Completed
Coronary Artery Disease Autosomal Dominant 1
Medtronic Vascular
January 2009 Phase 4
NCT00815139 Completed
Coronary Artery Disease
Yonsei University
February 2008 --
NCT00599885 Completed
Hypertension|Diabetes|Coronary Artery Disease
Korea University Anam Hospital
September 2007 Phase 4
NCT00476957 Completed
Ischemic Heart Disease
Medtronic Vascular|Medtronic Bakken Research Center
June 2007 Phase 4

化学情報

分子量 966.21 化学式

C52H79N5O12

CAS No. 221877-54-9 SDF Download Zotarolimus (ABT-578) SDFをダウンロードする
Smiles CC1CCC2CC(C(=CC=CC=CC(CC(C(=O)C(C(C(=CC(C(=O)CC(OC(=O)C3CCCCN3C(=O)C(=O)C1(O2)O)C(C)CC4CCC(C(C4)OC)N5C=NN=N5)C)C)O)OC)C)C)C)OC
保管

In vitro
Batch:

DMSO : 100 mg/mL ( (103.49 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。)

Ethanol : 100 mg/mL

Water : 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

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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