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CEP-18770
本产品不向个人销售,仅用作科学研究,不用于任何人体实验及非科研性质的动物实验。
CEP-18770图片
包装与价格:
包装价格(元)
10mM (in 1mL DMSO)电议
5mg电议
10mg电议
50mg电议
100mg电议

产品介绍
CEP-18770 (CEP-18770) 是一种有效的、具有口服活性的糜蛋白酶样活性蛋白酶体抑制剂,IC50 为 3.8 nM。 CEP-18770抑制NF-κB活性,诱导癌细胞凋亡,具有很强的抗血管生成和抗癌活性。

Cell lines

RPMI-8226 cells

Preparation method

The solubility of this compound in DMSO is >10 mM. General tips for obtaining a higher concentration: Please warm the tube at 37 ℃ for 10 minutes and/or shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months.

Reaction Conditions

40 nM, 4 to 8 hours

Applications

As an inhibitor of proteasome, CEP-18770 induced an accumulation of ubiquitinated proteins over 4 to 8 hours with a profile similar to that observed after bortezomib (another proteasome inhibitor) treatment.

Animal models

SCID mice bearing human MM RPMI 8226 subcutaneous xenograft

Dosage form

Intravenous (from 1 to 6 mg/kg, 2q7d×8 injections) or oral administration (in a solution of 3% DMSO, 10% Solutol, and 87% sterile NaCl 0.9%, twice-a-week injections for 4 weeks at doses of 7.8, 10, 13 mg/kg in a volume of 20 mL/kg body weight of mouse).

Applications

Intravenous administration of CEP-18770 exhibited sustained and dose-related tumor weight inhibition with RTWI of 100% at all tested doses. CEP-18770 also exhibited dose-related increases in the incidence of tumor-free mice by the completion of the studies (120 days after tumor transplantation) within the 3- and 4-mg/kg intravenous treatment groups, 89% and 80%, respectively. Oral administration of CEP-18770 resulted in a significant reduction of tumor weight and notable dose-related incidence of complete tumor regression (75% incidence of CR and 25% tumor-free mice at 10 mg/kg orally).

Other notes

Please test the solubility of all compounds indoor, and the actual solubility may slightly differ with the theoretical value. This is caused by an experimental system error and it is normal.

产品描述

CEP-18770 is a novel, potent and reversible P2 threonine boronic acid inhibitor of proteasome that inhibits proteasome’s chymotrypsin-like activity, with the value of inhibition constant IC50of 3.8 nM, by down-modulating the activity of nuclear factor-KB (NF-KB) as well as the expression of a few NF-KB downstream effectors. Preliminary results of multiple studies have shown that CEP-18770 exerts potent antitumor activities against human multiple myeloma (MM) cell lines by inducing apoptotic cell death, exhibits a strong antiangiogenic activity suppressing RANKL-induced osteoclastogenesis, and displays a favorable cytotoxicity profile towards normal cells including epithelial cells, bone marrow progenitors, and bone marrow-derived stromal cells.

Reference

[1].Piva R, Ruggeri B, Williams M, Costa G, Tamagno I, Ferrero D, Giai V, Coscia M, Peola S, Massaia M, Pezzoni G, Allievi C, Pescalli N, Cassin M, di Giovine S, Nicoli P, de Feudis P, Strepponi I, Roato I, Ferracini R, Bussolati B, Camussi G, Jones-Bolin S, Hunter K, Zhao H, Neri A, Palumbo A, Berkers C, Ovaa H, Bernareggi A, Inghirami G. CEP-18770: A novel, orally active proteasome inhibitor with a tumor-selective pharmacologic profile competitive with bortezomib. Blood. 2008;111(5):2765-2775