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P005091
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。
P005091图片
包装与价格:
包装价格(元)
10mM (in 1mL DMSO)电议
10mg电议
50mg电议

产品介绍
P005091 是一种选择性强效的泛素特异性蛋白酶 7 (USP7) 抑制剂,EC50 为 4.2 μM。

Cell lines

NCI-60 human tumor cell line.

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

Growth inhibition: 48 h. Cytotoxic activity: 72 h.Solubilized in 100% (v/v) DMSO at 400-fold the desired final maximum test concentration and stored frozen prior to use.

Applications

P005091 exhibits growth inhibition with GI50 value of 1.82 μM in HL-60(TB) cell line and exhibits broad growth inhibition. In HCT-116 cells, P005091 shows cytotoxic activity with EC50 value of 9.21 μM.

Animal models

Severe combined immunodeficient (SCID) mice inoculated subcutaneously with human multiple myeloma tumor cells.

Dosage form

10 mg/kg; intravenously twice a week for three weeks.

Applications

In SCID mice, P5091 significantly inhibits human plasmacytoma growth and enhances survival.

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

P005091 is a selective and potent inhibitor of ubiquitin-specific protease 7 (USP7) with an EC50 of 4.2 μM.

P005091 is a trisubstituted thiophene with dichlorophenylthio, nitro, and acetyl substituents mediating anti-USP7 activity. P005091 exhibits potent, specific, and selective deubiquitylating activity against USP7. In contrast, P005091 does not inhibit other DUBs or other families of cysteine proteases tested (EC50 >100 mM). P005091 inhibits the labeling of USP7 with HA-UbVME in a concentration-dependent manner. USP7-mediated cleavage of high molecular weight polyubiquitin chains is inhibited in a dose-dependent manner by P005091. Moreover, P005091 inhibits USP7- but not USP2- or USP8-mediated cleavage of poly K48-linked ubiquitin chains. USP7 inhibition by P005091 induces HDM2 polyubiquitylation and accelerates degradation of HDM2. P005091 inhibits USP7 deubiquitylating activity, without blocking proteasome activity in MM Cells. P005091 inhibits growth in MM cells and overcomes bortezomib-resistance. P005091 induces a dose-dependent decrease in viability of various MM cell lines, including those that are resistant to conventional therapies dexamethasone (Dex) (MM.1R), doxorubicin (Dox-40), or melphalan (LR5) (IC50 range 6-14 μM). P005091 overcomes bone marrow stromal cell-induced growth of MM Cells. P005091 decreases HDM2 and HDMX, as well as upregulated p53 and p21 levels. Overall, P005091-induced cytotoxicity is mediated in part via HDM2-p21 signaling axis and although p53 is upregulated in response to P005091 treatment, the cytotoxic activity of P005091 is not dependent on p53[1].

In animal tumor model studies, P005091 is well tolerated, inhibits tumor growth, and prolongs survival. Combining P005091 with lenalidomide, HDAC inhibitor SAHA, or dexamethasone triggers synergistic anti-MM activity[1].

References:
[1]. Chauhan D, et al. A small molecule inhibitor of ubiquitin-specific protease-7 induces apoptosis in multiple myeloma cells and overcomes bortezomib resistance. Cancer Cell. 2012 Sep 11;22(3):345-58.