CAS NO: | 1217022-63-3 |
规格: | ≥98% |
包装 | 价格(元) |
5mg | 电议 |
10mg | 电议 |
25mg | 电议 |
50mg | 电议 |
100mg | 电议 |
250mg | 电议 |
Molecular Weight (MW) | 576.10 |
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Formula | C17H13Br2N5OS.HBr |
CAS No. | 1217022-63-3 (HBr); |
Storage | -20℃ for 3 years in powder form |
-80℃ for 2 years in solvent | |
Solubility (In vitro) | DMSO: 100 mg/mL (173.6 mM) |
Water: <1 mg/mL | |
Ethanol: <1 mg/mL | |
Other info | Chemical Name: N-(2,6-Dibromo-4-methoxyphenyl)-4-(2-methylimidazo[1,2-a]pyrimidin-3-yl)-2-thiazolamine hydrobromide InChi Key: UOPFJYYKFDZXSY-UHFFFAOYSA-N InChi Code: InChI=1S/C17H13Br2N5OS.BrH/c1-9-15(24-5-3-4-20-16(24)21-9)13-8-26-17(22-13)23-14-11(18)6-10(25-2)7-12(14)19;/h3-8H,1-2H3,(H,22,23);1H SMILES Code: CC1=C(C2=CSC(NC3=C(Br)C=C(OC)C=C3Br)=N2)N4C=CC=NC4=N1.[H]Br |
Synonyms | PTC209 HBr; PTC 209; PTC-209 Hydrobromide |
In Vitro | In vitro activity: PTC-209 inhibits both the UTR-mediated reporter expression and endogenous BMI-1 expression in human colorectal HCT116 and human fibrosarcoma HT1080 tumor cells. PTC-209 decreases colorectal tumor cell growth in a BMI-1-dependent way. In addition, PTC-209 impairs colorectal cancer-initiating cells (CICs) through irreversible growth inhibition. Kinase Assay: HEK293 cells are transfected with a GEMS reporter vector that contains the luciferase open-reading frame flanked by and under post-transcriptional control of the BMI-1 5′ and 3′ UTRs. The resulting stable cells (F8) are treated with PTC-209 or vehicle control overnight, and then luciferase reporter activity is determined using Bright-Glo assays. The assays are run in triplicate for each point, and the percentage of inhibition was calculated against vehicle control. Cell Assay: To determine whether pretreatment with the inhibitor affects tumor cell growth, cells are plated with the inhibitor for 4 d in vitro and plated in limiting doses in vitro without adding further inhibitor. Trypan blue exclusion is used to count viable cells. The in vitro sphere-initiating cell frequency is calculated after inhibitor treatment by evaluating the number of wells containing spheres. For the experiments where LDAs are set up following recovery of PTC-209 treated cells, 6-well plates were seeded with 1E6 cells per well and incubated overnight. Cells are subsequently treated for 4 d in triplicate with either DMSO vehicle or PTC-209 (0.01, 0.1, 1 and 10 μM). Drug treatments are washed off and 4 mL fresh suspension medium added to all wells. To assess cell viability following the 4 d treatment window, cells are trypsinized and counted at 0, 24, 72 and 120 h after removal of the drug. Long-lasting effects of the drug treatment on sphere-forming ability are assessed by plating LDAs (50,000, 10,000, 1,000,100, 10 and 1 cell per well) using the cells obtained 120 h after the 4-d drug treatment. |
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In Vivo | PTC-209 (60 mg/kg/day, s.c.) effectively inhibits BMI-1 production in tumor tissue, and halts growth of preestablished tumors in mice bearing primary human colon cancer xenograft, human colon cancer cell lines LIM1215 or HCT116 xenografts. PTC-209 also reduces the frequency of functional colorectal CICs in vivo. |
Animal model | Primary human colon cancer xenograft, human colon cancer cell lines LIM1215 and HCT116 xenografts in nude mice. |
Formulation & Dosage | Formulated in 14% DMSO, 36% polyethylene glycol 400 and 50% polypropylene glycol; 60 mg/kg/day; s.c. injection |
References | Nat Med. 2014 Jan;20(1):29-36. |