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Rofecoxib

別名：MK-0966

Rofecoxib (MK-0966) is a COX-2 inhibitor with IC50 of 18 nM.

Rofecoxib 化学構造

CAS No. 162011-90-7

サイズ 価格(税別) 在庫状況
10mM (1mL in DMSO) JPY 29500 国内在庫あり
JPY 22000 国内在庫あり
JPY 100500 国内在庫なし(納期7~10日)

代表番号: 045-509-1970|電子メール：[email protected]
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文献中Selleckの製品使用例（3）

製品安全説明書

現在のバッチを見る： S304302 DMSO] 63 mg/mL] false] Water] Insoluble] false] Ethanol] Insoluble] false 純度： 99.85%
99.85

Rofecoxib 関連製品

シグナル伝達経路

COX Signaling Pathways

COXシグナル伝達経路

COX阻害剤の選択性比較

Cell Data

Cell Lines Assay Type Concentration Incubation Time 活性情報 PMID
J774 Function assay In vitro inhibitory activity against Prostaglandin G/H synthase 2 in murine J774 cells, IC50=0.012 μM 15857149
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生物活性

製品説明 Rofecoxib (MK-0966) is a COX-2 inhibitor with IC50 of 18 nM.
Targets
COX-2 [1]
18 nM
In Vitro
In vitro Rofecoxib inhibits the COX-2-dependent production of PGE2 in human osteosarcoma cells with an IC50 of 26 nM. Rofecoxib is a time-dependent inhibitor of purified human recombinant COX-2 with an IC50 of 0.34 μM. Rofecoxib causes inhibition of purified human COX-1 in a non-time-dependent manner. In a human whole blood assay, Rofecoxib selectively inhibits lipopolysaccharide-induced, COX-2-derived PGE2 synthesis with an IC50 value of 0.53 μM compared with an IC50 value of 18.8 μM for the inhibition of COX-1-derived thromboxane B2 synthesis after blood coagulation. [1] Rofecoxib moderately inhibits phenacetin O-deethylation with an IC50 of 23 μM. And a 30-minute preincubation with microsomes and NADPH considerably increases the inhibitory effect of Rofecoxib with an IC50 of 4.2 μM. Inactivation of CYP1A2 by rofecoxib requires NADPH, and is characterized by a K i of 4.8 μM. [2]
Kinase Assay In vitro biochemical and pharmacological assaysinhibition studies with recombinant human COX-1 and COX-2
Microsomal preparations of recombinant human COX-1 and COX-2 are prepared from a vaccinia virus-COS-7 cell expression system. Recombinant human COX-1 and COX-2 are expressed in baculovirus-Sf9 cells, and enzymes are purified. Enzymatic activity is monitored continuously by either a fluorescence assay measuring the appearance of the oxidized form of the reducing agent cosubstrate homovanillic acid or by oxygen consumption. The HPLC assay for the assessment of inhibition of purified COX-1 by Rofecoxib with 0.1 μM arachidonic acid substrate concentration, the determination of the stoichiometry of the complex between COX-2 and Rofecoxib, the dissociation rate constant of the enzyme-inhibitor complex by recovery of enzymatic activity, and the recovery of intact Rofecoxib from that complex are all performed as described previously. The solvent system for the HPLC analysis of Rofecoxib is 15:85 MeOH/aqueous potassium phosphate (1 g/liter), with elution by a linear gradient of 15 to 75% MeOH over 25 minutes with detection at 275 nm on a Novapak C18 column.
細胞実験 細胞株 Human osteosarcoma cell line and human lymphoma U937 cells
濃度 0.5 μM, 8 μM
反応時間 15 minutes
実験の流れ The human osteosarcoma cell line has been shown to selectively express COX-2 by reverse transcription-polymerase chain reaction and immunoblot analysis, whereas undifferentiated human lymphoma U937 cells selectively express COX-1. The production of PGE2 by these cells after arachidonic acid challenge is used as an index of cellular COX-2 and COX-1 activity, respectively. Rofecoxib is preincubated for 5 to 15 minutes with the cells under serum-free conditions [Hanks' balanced salt solution (HBSS)] before a 10-minutes stimulation with 10 μM arachidonic acid and measurement of PGE2 production. COX activity in each cell line is defined as the difference in PGE2 concentrations in samples incubated in the presence or absence of arachidonic acid.
In Vivo
In Vivo Rofecoxib potently inhibits carrageenan-induced paw edema, carrageenan-induced paw hyperalgesia, lipopolysaccharide-induced pyresis with IC50 of 1.5 mg/kg, 1.0 mg/kg and 0.24 mg/kg, respectively. Rofecoxib also blocks adjuvant-induced arthritis with an IC50 of 0.74 mg/kg/day. Rofecoxib also has a protective effect on adjuvant-induced destruction of cartilage and bone structures in rats. [1] Oral administration of rofecoxib decreases portal pressure in rats that are treated with CCl4 for 8 weeks. In addition, rofecoxib administration reduces the number of activated HSCs and to downregulate hepatic protein levels of three detected types of collagen, laminin, VEGF and CTGF in CCl4-treated rats. [3]
動物実験 動物モデル Rat adjuvant-induced arthritis (AIA) model
投与量 0.1 mg/kg/day, 0.3 mg/kg/day, 1.0 mg/kg/day, and 3.0 mg/kg/day
投与経路 p.o.
NCT Number Recruitment Conditions Sponsor/Collaborators Start Date Phases
NCT00637988 Completed
Barrett''s Esophagus
AstraZeneca
 April 2002 Phase 4
NCT00038389 Terminated
Glioma|Brain Neoplasms
M.D. Anderson Cancer Center
 October 2001 Phase 1

化学情報

分子量 314.36 化学式

C17H14O4S
CAS No. 162011-90-7 SDF Download Rofecoxib SDFをダウンロードする
Smiles CS(=O)(=O)C1=CC=C(C=C1)C2=C(C(=O)OC2)C3=CC=CC=C3
保管

In vitro
Batch:

DMSO : 63 mg/mL ( (200.4 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

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 匹

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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