CEP-18770 (Synonyms: CEP-18770) |
| Catalog No.GC12272 |
An inhibitor of chymotrypsin-like proteasome activity
Products are for research use only. Not for human use. We do not sell to patients.
Cas No.: 847499-27-8
Sample solution is provided at 25 µL, 10mM.
;)
,-1-7$$$37316672.jpg');)
;)
;)
$$$36806353.jpg');)
;33(7)%EF%BC%9A546-561$$$37156877.jpg');)
;)
;)
;)
%201124-1138.$$$35908550.jpg');)
%20766-780.$$$37100057.jpg');)
%20418-432.$$$36893736.jpg');)
%EF%BC%9A-240-255.$$$35108512.jpg');)
533-545$$$36543525.jpg');)
%201-13.$$$36600053.jpg');)
;)
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 IC50 of 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
| Cell experiment: [1] | |
|
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 °C for 10 minutes and/or shake it in the ultrasonic bath for a while.Stock solution can be stored below -20°C 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 experiment : [1] | |
|
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. |
|
References: [1] Piva R, Ruggeri B, Williams M, et al. CEP-18770: A novel, orally active proteasome inhibitor with a tumor-selective pharmacologic profile competitive with bortezomib. Blood, 2008, 111(5): 2765-2775. | |
| Cas No. | 847499-27-8 | SDF | |
| Synonymes | CEP-18770 | ||
| Chemical Name | [(1R)-1-[[(2S,3R)-3-hydroxy-2-[(6-phenylpyridine-2-carbonyl)amino]butanoyl]amino]-3-methylbutyl]boronic acid | ||
| Canonical SMILES | B(C(CC(C)C)NC(=O)C(C(C)O)NC(=O)C1=CC=CC(=N1)C2=CC=CC=C2)(O)O | ||
| Formula | C21H28BN3O5 | M.Wt | 413.3 |
| Solubility | ≥ 16.75 mg/mL in DMSO, ≥ 32.27 mg/mL in EtOH with ultrasonic | Storage | Store at -20°C |
| General tips | Please select the appropriate solvent to prepare the stock solution according to the
solubility of the product in different solvents; once the solution is prepared, please store it in
separate packages to avoid product failure caused by repeated freezing and thawing.Storage method
and period of the stock solution: When stored at -80°C, please use it within 6 months; when stored
at -20°C, please use it within 1 month. To increase solubility, heat the tube to 37°C and then oscillate in an ultrasonic bath for some time. |
||
| Shipping Condition | Evaluation sample solution: shipped with blue ice. All other sizes available: with RT, or with Blue Ice upon request. | ||
| Prepare stock solution | |||
|
1 mg | 5 mg | 10 mg |
| 1 mM | 2.4195 mL | 12.0977 mL | 24.1955 mL |
| 5 mM | 0.4839 mL | 2.4195 mL | 4.8391 mL |
| 10 mM | 0.242 mL | 1.2098 mL | 2.4195 mL |
Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)
g
μL
Step 2: Enter the in vivo formulation (This is only the calculator, not formulation. Please contact us first if there is no in vivo formulation at the solubility Section.)
Calculation results:
Working concentration: mg/ml;
Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid concentration mg/mL, Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug. )
Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O, mix and clarify.
Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.
Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such as vortex, ultrasound or hot water bath can be used to aid dissolving.
3. All of the above co-solvents are available for purchase on the GlpBio website.
Quality Control & SDS
- View current batch:
- Purity: >98.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
Average Rating: 5 (Based on Reviews and 30 reference(s) in Google Scholar.)
GLPBIO products are for RESEARCH USE ONLY. Please make sure your review or question is research based.
Required fields are marked with *