ホームページ Proteases Proteasome inhibitor Delanzomib For research use only.

Delanzomib

別名：CEP-18770

Delanzomib is an orally active inhibitor of the chymotrypsin-like activity of proteasome with IC50 of 3.8 nM, with only marginal inhibition of the tryptic and peptidylglutamyl activities of the proteosome. Phase 1/2.

Delanzomib化学構造

CAS No. 847499-27-8

サイズ 価格(税別) 在庫状況
10mM (1mL in DMSO) JPY 29000 国内在庫あり
JPY 26400 国内在庫あり
JPY 167500 国内在庫あり

代表番号: 045-509-1970|電子メール：[email protected]
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カスタマーフィードバック1个实验数据

製品安全説明書

現在のバッチを見る： S115701 DMSO] 83 mg/mL] false] Ethanol] 83 mg/mL] false] Water] Insoluble] false 純度： 99.25%
99.25

Delanzomib関連製品

シグナル伝達経路

Proteasome Signaling Pathways

Proteasomeシグナル伝達経路

Proteasome阻害剤の選択性比較

生物活性

製品説明 Delanzomib is an orally active inhibitor of the chymotrypsin-like activity of proteasome with IC50 of 3.8 nM, with only marginal inhibition of the tryptic and peptidylglutamyl activities of the proteosome. Phase 1/2.
Targets
Chymotrypsin-like proteasome [1]
3.8 nM
In Vitro
In vitro CEP-18770 demonstrates marginal prevention of the tryptic and peptidyl gultamyl activities of the protesome. The IC50 values of CEP-18770 are similar to those of bortezomib, with the chymotryptic and caspase-like activities being inhibited at low-nanomolar concentrations.[1] CEP-18770 inhibits A2780 ovarian cancer cells, PC3 prostate cancer, H460, LoVo colon cancer, RPMI8226 multiple myeloma cancer and HS-Sultan anaplastic non-Hodgkin lymphoma with IC50 values of 13.7, 22.2, 34.2 11.3, 5.6 and 8.2 nM, respectively.[1] CEP-18770 blocks the ubiquitin-proteasome pathway in several MM and in the chronic myelogenous leukemia cell line, K562. CEP-18770 causes an accumulation of ubiquitinated proteins over 4 to 8 hours with a profile similar to that observed after bortezomib treatment.[1] IκBα degradation is completely blocked by pretreatment with CEP-18770. CEP-18770 significantly inhibits high levels of NF-κB activity in both RPMI-8226 and U266 cells. The time- and concentration-dependent suppression of NF-kB DNA-binding activity in MM cell lines by CEP-18770 leads to a decrease of expression of several NF-κB-modulated genes mediating the growth and survival of tumor cells including IkBα itself, the X-chromosome-linked inhibitor-of-apoptosis protein (XIAP), the pro-inflammatory cytokines TNF-α and interleukin-1β (IL-1β), the intracellular adhesion molecule (ICAM1), and the pro-angiogeneic factor vascular endothelial growth factor. [1] The expression of these NF-κB–mediated genes and their modulation by bortezomib are associated with more favorable clinical responsiveness to this agent, highlighting their potential prognostic value in response to CEP-18770 exposure. [1] The proapoptotic activity of CEP-18770 against MM is not limited solely to tumor-derived MM cell lines, but extends to primary MM explants from relapsed or refractory patients including those previously treated with bortezomib. [1] In addition, the combination of CEP-18770 with melphalan or bortezomib produces synergistic inhibition of MM cell viability in vitro.[2]
Kinase Assay Probing proteasome activity in cell extracts
Human multiple myeloma cells are washed twice with cold phosphate-buffered saline, pelleted and lysed with one volume of glass beads (<106 microns, acid-washed) and an equal volume of homogenization buffer (50 mM Tris (pH 7.4), 1 mM dithiothreitol, 5 mM MgCl2, 2 mM ATP and 250 mM sucrose) by vortexing at high speed for 15-30 min at 4 °C. Beads, membrane fractions, nuclei and cell debris are then removed from the supernatant by centrifugation at 16,000g for 5 min. The protein content of extracts is quantitated using the Bradford assay. Proteasome activity is assayed as described below. Equal amounts (typically 60 g) of protein are denatured by boiling in reducing sample buffer, separated by 12.5% SDS-PAGE and electrotransferred onto polyvinylidene difluoride (PVDF) membranes. Immunoblotting is performed using a dansyl-sulfonamidohexanoyl polyclonal antibody (1:7,500, rabbit) and horseradish peroxidase–coupled goat or swine anti-rabbit secondary antibody followed by enhanced chemiluminescence.
細胞実験 細胞株 HMEC and TEC cells
濃度 0-100 nM
反応時間 6 hours
実験の流れ HMEC and TEC cells are seeded into 24-well plates at a density of 104 cells/well in DMEM supplemented with 5% FCS. After incubation with proteasome inhibitors (48 hours), cells are washed, air dried, and stained with crystal violet as described. Cell number is determined, in duplicate samples, on the basis of a standard curve obtained with known cell numbers. All experiments are performed in triplicate. In vitro formation of capillary-like structures is studied on cells (4 × 104 cells/well in DMEM supplemented with 5% FCS. After incubation with proteasome inhibitors (48 hours), cells are washed (cells/well in 24-well plates) and seeded onto Matrigel-coated wells in DMEM containing 0.25% BSA. HMEC and TEC cells (5 × 103 per well), suspended in 200 μL DMEM with 5% FCS (positive control), serum-free medium (negative control), are layered onto the Matrigel surface in the presence or absence of proteasome inhibitor CEP-18770. Cells are observed with a inverted microscope and experimental results are then recorded after a 6-hour incubation at 37 °C. Data is analyzed, as the mean (× 1 SD) of total length of capillary-like structures, by the Micro-Image system and is expressed as mm/field by the computer analysis system in 5 different fields at 100 × magnification in duplicated wells for 4 different experiments.
In Vivo
In Vivo CEP-18770 reveals sustained dose-related relative tumor weight inhibition. CEP-18770 leads to dose-related complete tumor regressions, as compared to bortezomib treatment, which results in a 50% incidence of CR at its maximally tolerated dose (MTD) of 1.2 mg/kg intravenously. [1] In contrast to bortezomib, CEP-18770 reveals dose-related increase in the incidence of tumor-free mice by the completion of these studies (120 days after tumor transplantation). Oral administration of CEP-18770 produces a marked decrease in tumor weight and notable dose-related incidence of complete tumor regression with minimal changes in animal body weight over the course of the 120 day studies. [1]When compared to bortezomib, equiactive doses of CEP-18770 reveal a greater and more sustained dose-related inhibition of tumor proteasome activity, corresponding temporarily with maximum induction of caspase-3 and 7 activity.[1] The maximum apoptotic signal is 2.5 fold greater for CEP-18770 versus bortezomib. In contrast, proteasome inhibition profiles of CEP-18870 and bortezomib are comparable in the normal peripheral mouse tissues examined (liver, lungs, whole blood, and brain [no activity]) in both their magnitude and their duration.[1] No proteasome inhibition is detected in brain tissue at any time point for either CEP-18770 or bortezomib. In MM xenograft models, the addition of CEP-18770 to melphalan completely preventes the growth of both melphalan-sensitive or melphalan-resistant tumours. [1] The combination of CEP-18770 and bortezomib leads to complete regression of bortezomib-sensitive tumours and markedly delays progression of bortezomib-resistant tumours compared to treatment with either agent alone. Single agent CEP-18770 PO also shows marked anti-MM effects in these xenograft models[1]
動物実験 動物モデル Human MM RPMI 8226 subcutaneous xenograft model in SCID mice
投与量 From 1.5 to 4 mg/kg, twice for 7 days to 4 weeks.
投与経路 Intravenously
NCT Number Recruitment Conditions Sponsor/Collaborators Start Date Phases
NCT01348919 Completed
Multiple Myeloma
Teva Branded Pharmaceutical Products R&D Inc.
 August 3 2011 Phase 1|Phase 2
NCT01023880 Terminated
Multiple Myeloma
Cephalon|Teva Branded Pharmaceutical Products R&D Inc.
 January 2010 Phase 1|Phase 2
NCT00572637 Completed
Solid Tumors|Lymphoma Non-Hodgkin
Ethical Oncology Science
 November 2007 Phase 1

化学情報

分子量 413.28 化学式

C21H28BN3O5
CAS No. 847499-27-8 SDF Download Delanzomib SDFをダウンロードする
Smiles B(C(CC(C)C)NC(=O)C(C(C)O)NC(=O)C1=CC=CC(=N1)C2=CC=CC=C2)(O)O
保管

In vitro
Batch:

DMSO : 83 mg/mL ( (200.83 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 : 83 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 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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