CCT245737 - CHK1 抑制劑 - 生命科學試劑 - MedChemExpress

1、Hotline: 400-820-3792Inhibitors Agonists Screening Librarieswww.MedChemECCT245737Cat. No.: HY-18958CAS No.: 1489389-18-5分式: CHFNO分量: 379.34作靶點: Checkpoint Kinase (Chk)作通路: Cell Cycle/DNA Damage儲存式: Powder -20C 3 years4C 2 yearsIn solvent -80C 6 months-20C 1 month溶解性數(shù)據(jù)體外實驗 DMSO : 32 mg/mL (84.36 mM)*

2、 means soluble, but saturation unknown.Mass Solvent1 mg 5 mg 10 mg Concentration制備儲備液1 mM 2.6362 mL 13.1808 mL 26.3616 mL5 mM 0.5272 mL 2.6362 mL 5.2723 mL10 mM 0.2636 mL 1.3181 mL 2.6362 mL請根據(jù)產品在不同溶劑中的溶解度，選擇合適的溶劑配制儲備液，并請注意儲備液的保存式和期限。BIOLOGICAL ACTIVITY物活性 CCT245737種可服的，選擇性的 Chk1 抑制劑，IC50 值為 1.3 nM。

3、IC50 & Target Chk1 Chk2 ERK8 PKD11.3 nM (IC50) 2440 nM (IC50) 130 nM (IC50) 298 nM (IC50)RSK2 RSK1 FLT3 MARK31/3 Master of Small Molecules 您邊的抑制劑師www.MedChemE361 nM (IC50) 362 nM (IC50) 582 nM (IC50) 698 nM (IC50)NUAK1 CLK2 BRSK1 AMPK711 nM (IC50) 1370 nM (IC50) 1660 nM (IC50) 2970 nM (IC50)PHK CDK2

4、/CyclA CDK1/CyclB3470 nM (IC50) 3850 nM (IC50) 9030 nM (IC50)體外研究 CCT245737 (10 M) shows 80% inhibition of a panel of 124 kinases, including ERK8, PKD1, RSK2 andRSK1 with IC50s of 130, 298, 361 and 362 nM 1. CCT245737 abrogates an etoposide-induced G2checkpoint in HT29, SW620, MiaPaCa-2, and Calu6 c

5、ell lines, with IC50s ranging from 30 to 220 nM 2.體內研究 CCT245737 (150 mg/kg p.o.) inhibits tumor growth in combination with gemcitabine (100 mg/kg iv) in HT29colon cancer xenografts. CCT245737 (300 mg/kg, p.o.) also inhibits the gemcitabine (60 mg/kg iv) inducedpSer296 CHK1 autophosphorylation at 24

6、 h in SW620 human colon cancer xenografts 1. CCT245737 (150mg/kg, p.o) alone significantly inhibits tumor growth in an E-Myc mouse model of human B-cell lymphocyticleukemia 2.PROTOCOLKinase Assay 2 Commercial in vitro 33P radiometric kinase assays are carried out against 124 human kinases using 10 M

7、CCT245737 at ATP concentrations corresponding to the kinase Km, ATP. Other kinase IC50 determinationsfor CHK2 and FLT3 are performed using a commercial assay or in-house with recombinant human CHK1 ona LabChip EZ Reader II or CDK1 in a DELFIA assay 2.MCE has not independently confirmed the accuracy

8、of these methods. They are for reference only.Cell Assay 2 Cytotoxicity is determined as the drug concentration that gives 50% inhibition of tumor cell proliferation(GI50) using a 96 h Sulforhodamine B (SRB) assay. Inhibition of intracellular CHK1 activity is measuredusing a cell based ELISA for the

9、 abrogation of an etoposide induced G2 checkpoint (mitosis induction assay,MIA). The IC50 for G2 checkpoint abrogation (MIA) is determined in the presence of nocodazole usingUCN01 as a positive control. The activity index (AI) is used as a measure of the compounds ability to inducemitosis relative t

10、o its toxicity (i.e., ratio of MIA IC50: 96 h SRB GI50). Routine potentiation studies are carriedout using a fixed concentration (GI50) of either gemcitabine or SN38 in combination with a range ofCCT245737 concentrations to determine the combination GI50 of CCT245737. The ability of CCT245737 toenha

11、nce gemcitabine or SN38 cell killing is expressed as a potentiation index (PI) equal to the ratio of theGI50 for CCT245737 alone versus the combination GI50 for CCT245737. PI values 1 indicate potentiationof the genotoxic activity. In addition, a series of experiments is carried out using fixed, non

12、- or minimally toxicconcentrations of CCT245737 (GI20) with a range of different concentrations of gemcitabine or SN38 todetermine the extent to which CCT245737 enhances drug cytotoxicity compared with the genotoxic agentalone, i.e. conventional PI (ratio GI50 genotoxic alone: GI50 genotoxic combine

13、d with non-toxic CCT245737concentration, Con PI) 2.MCE has not independently confirmed the accuracy of these methods. They are for reference only.Animal Human HT29 colorectal carcinoma cells are injected s.c into the flanks of female NCr athymic mice 6-82/3 Master of Small Molecules 您邊的抑制劑師www.MedCh

14、emEAdministration 1 weeks of age. Dosing commenced 5 days after transplantation when tumors reach a mean diameter of 5.5mm. Gemcitabine (100 mg/kg i.v.) is dosed in saline on days 0, 7 and 14 and compounds 4 (CCT245737)and 41 (150 mg/kg p.o.) in 10% DMSO 20% PEG 400, 5% Tween 80, 65% water, 24 and 4

15、8 h after eachdose of gemcitabine. Tumors are measured and body weights recorded three times weekly. Animals areculled on an individual basis when tumors reach a predetermined humane endpoint (mean diameter 1.MCE has not independently confirmed the accuracy of these methods. They are for reference o

16、nly.REFERENCES1. Osborne JD, et al. Multiparameter Lead Optimization to Give an Oral Checkpoint Kinase 1 (CHK1) Inhibitor Clinical Candidate: (R)-5-(4-(Morpholin-2-ylmethyl)amino)-5-(trifluoromethyl)pyridin-2-yl)amino)pyrazine-2-carbonitrile (CCT245737). J Med Chem. 2016 Jun9;59(11):5221-37.2. Walton MI, et al. The clinical development candidate CCT245737 is an orally active CHK1 inhibitor with preclinical activity in RA