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PTC-209
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。
PTC-209图片
CAS NO:315704-66-6
规格:≥98%
包装与价格:
包装价格(元)
5mg电议
10mg电议
25mg电议
50mg电议
100mg电议
250mg电议
500mg电议

产品介绍
理化性质和储存条件
Molecular Weight (MW)495.19
FormulaC17H13Br2N5OS
CAS No.315704-66-6 (free base);
Storage-20℃ for 3 years in powder form
-80℃ for 2 years in solvent
Solubility (In vitro)DMSO: 99 mg/mL (199.9 mM)
Water: <1 mg/mL
Ethanol: <1 mg/mL
Other infoChemical Name: N-(2,6-dibromo-4-methoxyphenyl)-4-(2-methylimidazo[1,2-a]pyrimidin-3-yl)thiazol-2-amine
InChi Key: XVOOCQSWCCRVDY-UHFFFAOYSA-N
InChi Code: InChI=1S/C17H13Br2N5OS/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)
SMILES Code: CC1=C(C2=CSC(NC3=C(Br)C=C(OC)C=C3Br)=N2)N4C=CC=NC4=N1
SynonymsPTC-209; PTC 209; PTC209
实验参考方法
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.

In VivoPTC-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 modelPrimary human colon cancer xenograft, human colon cancer cell lines LIM1215 and HCT116 xenografts in nude mice.
Formulation & DosageFormulated 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.