Delanzomib (CEP-18770)

製品コードS1157

Delanzomib (CEP-18770)化学構造

分子量(MW):413.28

Delanzomib (CEP-18770)は一種の経口有効で、キモトリプシン様(chymotrypsin-like)活性を持っているプロテアソーム阻害剤で、このIC50値が3.8 nMですが、プロテアソームのトリプシンとペプチジルグルタミル(peptidyl glutamyl )の活性を最低限度で抑制します。臨床1/2期。

サイズ 価格(税別) 在庫  
JPY 24402.00 あり
JPY 165502.00 あり

カスタマーフィードバック(1)

  • Effect of CoCl2, CEP-18770 and ONX-0914 on the expression and activity of HIF-1α. As depicted in one representative of the three performed western blots, the evaluated compounds have a profound effect on HIF-1α expression, as well on its function as it is assessed by the expression of its transcriptional target LDH-A (a).

    Int Urol Nephrol, 2016, 48(6):907-15. . Delanzomib (CEP-18770) purchased from Selleck.

製品安全説明書

Proteasome阻害剤の選択性比較

生物活性

製品説明 Delanzomib (CEP-18770)は一種の経口有効で、キモトリプシン様(chymotrypsin-like)活性を持っているプロテアソーム阻害剤で、このIC50値が3.8 nMですが、プロテアソームのトリプシンとペプチジルグルタミル(peptidyl glutamyl )の活性を最低限度で抑制します。臨床1/2期。
ターゲット
Chymotrypsin-like proteasome [1]
3.8 nM
体外試験

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]

体内試験 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]

お薦めの試験操作(参考用のみ)

キナーゼ試験:[3]
+ 展開

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.
細胞試験: [1]
+ 展開
  • 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.
    (参考用のみ)
動物試験:[1]
+ 展開
  • 動物モデル: Human MM RPMI 8226 subcutaneous xenograft model in SCID mice
  • 製剤: In a solution of 3% DMSO
  • 投薬量: From 1.5 to 4 mg/kg, twice for 7 days to 4 weeks.
  • 投与方法: Intravenously
    (参考用のみ)

溶解度 (25°C)

体外 DMSO 83 mg/mL (200.83 mM)
Ethanol 83 mg/mL (200.83 mM)
Water Insoluble

* 溶解度検測はSelleck技術部門によって行いますので、文献より提供された溶解度と差異がある可能性がありますが、生産工芸と不同ロット(lot)で起きる正常な現象ですから、ご安心ください。

化学情報

分子量 413.28
化学式

C21H28BN3O5

CAS No. 847499-27-8
保管
in solvent
別名 N/A

便利ツール

モル濃度計算器

モル濃度計算器

解決のために必要とされるマス、ボリュームまたは濃度を計算してください。

マス (g) = 濃度 (mol/L) x ボリューム (L) x 分子量 (g/mol)

モル濃度計算器方程式

  • マス
    濃度
    ボリューム
    分子量

*貯蔵液を準備するとき、常に、オンであるとわかる製品のバッチに特有の分子量を使って、を通してラベルとMSDS/COA(製品ページで利用可能な)。

希釈計算器

希釈計算器

貯蔵液を準備することを要求される希釈剤を計算してください. セレック希釈計算器は、以下の方程式に基づきます:

開始濃度 x 開始体積 = 最終濃度 x 最終体積

希釈の計算式

この方程式は、一般に略語を使われます:C1V1 = C2V2 ( 輸入 輸出 )

  • C1
    V1
    C2
    V2

常に貯蔵液を準備するとき、小びんラベルとMSDS/COA(オンラインで利用できる)で見つかる製品のバッチに特有の分子量を使ってください。

連続希釈計算器方程式

  • 連続希釈剤

  • 計算結果

  • C1=C0/X C1: LOG(C1):
    C2=C1/X C2: LOG(C2):
    C3=C2/X C3: LOG(C3):
    C4=C3/X C4: LOG(C4):
    C5=C4/X C5: LOG(C5):
    C6=C5/X C6: LOG(C6):
    C7=C6/X C7: LOG(C7):
    C8=C7/X C8: LOG(C8):
分子量計算器

分子量计算器

そのモル質量と元素組成を計算するために、合成物の化学式を入力してください:

総分子量:g/mol

チップス: 化学式は大文字と小文字の区別ができます。C10H16N2O2 c10h16n2o2

モル濃度計算器

マス 濃度 ボリューム 分子量

臨床試験

NCT Number Recruitment Conditions Sponsor/Collaborators Start Date Phases
NCT01348919 Terminated Multiple Myeloma Cephalon|Teva Pharmaceutical Industries August 2011 Phase 1|Phase 2
NCT01023880 Terminated Multiple Myeloma Cephalon|Teva Pharmaceutical Industries January 2010 Phase 1|Phase 2
NCT00572637 Completed Solid Tumors|Lymphoma, Non-Hodgkin Ethical Oncology Science November 2007 Phase 1

技術サポート

ストックの作り方、阻害剤の保管する方法、細胞実験や動物実験に注意すべきな点を全部含めており、製品を取扱う時よくあった質問に対して取扱説明書でお答えいたします。

Handling Instructions

他の質問がある場合は、お気軽くお問合せください。

  • * 必須

Proteasome信号経路図

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