您好,欢迎来到化工原料网! [登录] [免费注册]
化工原料网
位置:首页 > 产品库 > CX-5461
立即咨询
咨询类型:
     
*姓名:
*电话:
*单位:
Email:
*留言内容:
请详细说明您的需求。
*验证码:
 
CX-5461
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。
CX-5461图片
CAS NO:1138549-36-6
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)513.61
FormulaC27H27N7O2S
CAS No.1138549-36-6
Storage-20℃ for 3 years in powder form
-80℃ for 2 years in solvent
Solubility (In vitro)DMSO: <1 mg/mL
Water: <1 mg/mL
Ethanol: <1 mg/mL
Other infoChemical Name: 2-(4-methyl-1,4-diazepan-1-yl)-N-((5-methylpyrazin-2-yl)methyl)-5-oxo-5H-benzo[4,5]thiazolo[3,2-a][1,8]naphthyridine-6-carboxamide
InChi Key: XGPBJCHFROADCK-UHFFFAOYSA-N
InChi Code: InChI=1S/C27H27N7O2S/c1-17-14-29-18(15-28-17)16-30-26(36)23-24(35)19-8-9-22(33-11-5-10-32(2)12-13-33)31-25(19)34-20-6-3-4-7-21(20)37-27(23)34/h3-4,6-9,14-15H,5,10-13,16H2,1-2H3,(H,30,36)
SMILES Code: O=C(C1=C(SC2=CC=CC=C23)N3C4=C(C=CC(N5CCN(C)CCC5)=N4)C1=O)NCC6=NC=C(C)N=C6
SynonymsCX5461; CX 5461; CX-5461
实验参考方法
In Vitro

In vitro activity: CX-5461 is found to selectively inhibit rRNA synthesis (Pol I IC50=142 nM; Pol II IC50> 25 μM; selectivity ~200-fold) in the HCT-116 cells. Selective inhibition of rRNA synthesis by CX-5461 is confirmed in two other human solid tumor cell lines; melanoma A375 (Pol I IC50 = 113 nM; Pol II IC50> 25 μM) and pancreatic carcinoma MIA PaCa-2 (Pol I IC50=54 nM; Pol II IC50 ~25 mM). CX-5461 possesses 250- to 300-fold selectivity for inhibition of rRNA transcription versus DNA replication and protein translation. CX-5461 exhibits broad antiproliferative potency in a panel of cancer cell lines in human cancer cell lines, but has minimal effect on viability of nontransformed human cells. The median EC50 across all tested cell lines is 147 nM, yet all normal cell lines have EC50 values of approximately 5, 000 nM. Evaluation of the antiproliferative dose response for HCT-116, A375, and MIA PaCa-2 cell lines yield EC50 values of 167, 58, and 74 nM. CX-5461 induces autophagy and senescence in solid tumor cancer cells, rather than apoptosis, through a p53-independent process.


Kinase Assay: Two short-lived RNA transcripts (half-lives ~20-30 minutes), one produced by Pol I and another by Pol II, are quantitated by qRT-PCR as a measure of CX-5461-related effects on transcription. The 45S pre-rRNA served as the Pol I transcript and the mRNA for the protooncogene c-myc served as the comparator Pol II transcript. Both Pol I and Pol II transcription are known to be affected by general cellular stress. To minimize the potential effects of such stress, cells are exposed to test agents for only a short period of time (2 hours). This is sufficient time for these transcripts to be reduced by greater than 90% if CX-5461 affects their synthesis.


Cell Assay: Cells are plated on 96-well plates and treated the next day with dose response of CX-5461 for 96 hours. Cell viability is determined using Alamar Blue and CyQUANT assays.

In VivoCX-5461 is orally bioavailable and demonstrates in vivo antitumor activity against human solid tumors in murine xenograft models. CX-5461 demonstrates significant MIA PaCa-2 TGI with TGI equal to 69% on day 31, comparable to that of gemcitabine (63% TGI). Gemcitabine is a positive control which is administered intraperitoneally once every 3 days at 120 mg/kg. Likewise, CX- 5461 demonstrates significant A375 TGI with TGI equal to 79% on day 32.
Animal modelPaca-2 and A375 cancer cells are subcutaneously inoculated in the right flank of 5- to 6- week-old female athymic mice
Formulation & DosageDissolved in 50 mM NaH2PO4 (pH 4.5); 50 mg/kg; Oral gavage
References

Cancer Res. 2011 Feb 15;71(4):1418-30.