CBL0137 (hydrochloride)
(Synonyms: CBL0137盐酸盐,CBLC137,Curaxin 137) 目录号 : GC15394
An activator of p53 and inhibitor of NF-κB
Cas No.:1197397-89-9
Sample solution is provided at 25 µL, 10mM.
EC50: 0.37 μM for activating p53; 0.47 μM for inhibiting NF-κB
CBL0137 (hydrochloride) is a curaxin that activates p53 and inhibits NF-κB.
The p53 and nuclear factor κB (NF-κB) pathways are dysregulated in almost all tumors, making them attractive targets for therapeutic activation and inhibition, respectively.
In vitro: CBL0137 was identified as a metabolically stable curaxin activating p53 and inhibiting NF-κB. CBL0137 could functionally inactivate chromatin transcription complex, resulting in the effects on p53 and NF-κB and promoting cancer cell death [1]. It was also found that CBL0137 alone was a potent inducer of apoptosis in pancreatic cancer cell lines and was toxic not only for proliferating bulk tumor cells, but also for pancreatic cancer stem cells [2].
In vivo: In mice, CBL0137 was effective against orthotopic gemcitabine resistant PANC-1 model and patient derived xenografts, in which CBL0137 anti-tumor effect related with overexpression of FACT. Moreover, the combination effects of CBL0137 and gemcitabine might be explained by the ability of CBL0137 to inhibit several transcriptional programs induced by gemcitabine, including NF-kappaB response and expression of ribonucleotide reductase [2].
Clinical trial: A phase 1 trial of CBL0137 in patients with metastatic or unresectable advanced solid neoplasm and a study of IV CBL0137 in previously treated hematological subjects are crrently recruiting patients [https://clinicaltrials.gov/ct2/results term=CBL0137&Search=Search].
References:
1. A. V. Gasparian, C. A. Burkhart, A. A. Purmal, et al. Curaxins: Anticancer compounds that simultaneously suppress NF-κB and activate p53 by targeting FACT. Sci.Transl.Med. 3(95), (2011).
2. C. Burkhart, D. Fleyshman, R. Kohrn, et al. Curaxin CBL0137 eradicates drug resistant cancer stem cells and potentiates efficacy of gemcitabine in preclinical models of pancreatic cancer. Oncotarget 5(22), 11038-11053 (2014).
|
Kinase experiment: |
MiaPaca2 and BxPC-3 cells are treated with CBL0137 hydrochloride for 4 or 24 h. Cells are harvested in 1× Cell Culture Lysis Reagent containing protease and phosphatase inhibitors. Lysates 5 to 20 μg are separated on SDS-PAGE gels and transferred to PVDF membranes. Blots are probed with antibodies specific for SSRP1, SPT16, RRM1, and RRM2. GAPDH is used as a loading control. Proteins are visualized using ECL kit[1]. |
|
Cell experiment: |
Cells are resuspended in serum free Dulbecco's Modified Eagle Medium (DMEM) and treated with different concentrations of CBL0137 hydrochloride for 1h. After that 105 cells from each treatment condition are plated in 3 wells of 6-well plate in 2 mL of serum-free DMEM/F12 medium supplemented with 0.4% BSA, 0.2×B27, 10 ng/mL recombinant EGF and containing 0.25% agarose. 103 cells from each treatment condition are plated in 3 wells of 6-well plate in regular FBS containing medium. Colonies are counted using inverted microscope 7 to 15 days after plating[1]. |
|
Animal experiment: |
10-week old female athymic nude mice (n=8 per treatment group) are deeply anesthetized with ketamine/xylazine. Using laparotomy, 2×106 PANC-1 cells are inoculated into the tail of the pancreas of each mouse. Two weeks following inoculation (tumor presence confirmed by ultrasound), treatment commenced. The following regimens are used: 1) vehicles, 100 mg/kg captisol i.v. and sterile water via gavage, 2) 50 to 90 mg/kg CBL0137 hydrochloride in 100 mg/mL captisol i.v. delivered via tail vein once per week, 3) 10 to 20 mg/kg CBL0137 hydrochloride p.o. via oral gavage, 5 days on/2 days off. Tumor measurement is done with digital calipers. Tumor volume is calculated using the equation L×W2/2 where L is the longest dimension and W is the dimension perpendicular to W. Mice are followed until at least one tumor per mouse reached 1000 mm3 or 90 days from start of treatment, whichever comes first[1]. |
|
References: [1]. Burkhart C, et al. Curaxin CBL0137 eradicates drug resistant cancer stem cells and potentiates efficacy of gemcitabine in preclinical models of pancreatic cancer. Oncotarget. 2014 Nov 30;5(22):11038-53. |
|
| Cas No. | 1197397-89-9 | SDF | |
| 别名 | CBL0137盐酸盐,CBLC137,Curaxin 137 | ||
| 化学名 | 1,1'-[9-[2-[(1-methylethyl)imino]ethyl]-9H-carbazole-3,6-diyl]bis-ethanone, monohydrochloride | ||
| Canonical SMILES | CC(C1=CC=C2C(C(C=C(C(C)=O)C=C3)=C3N2CCNC(C)C)=C1)=O.Cl | ||
| 分子式 | C21H24N2O2 • HCl | 分子量 | 372.9 |
| 溶解度 | ≤25mg/ml in DMSO;20mg/ml in dimethyl formamide | 储存条件 | Store at -20°C |
| General tips | 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。 储备液的保存方式和期限：-80°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。 为了提高溶解度，请将管子加热至37℃，然后在超声波浴中震荡一段时间。 |
||
| Shipping Condition | 评估样品解决方案：配备蓝冰进行发货。所有其他可用尺寸：配备RT，或根据请求配备蓝冰。 | ||
| 制备储备液 | |||
 |
1 mg | 5 mg | 10 mg |
| 1 mM | 2.6817 mL | 13.4084 mL | 26.8168 mL |
| 5 mM | 0.5363 mL | 2.6817 mL | 5.3634 mL |
| 10 mM | 0.2682 mL | 1.3408 mL | 2.6817 mL |
| 第一步：请输入基本实验信息（考虑到实验过程中的损耗，建议多配一只动物的药量） | ||||||||||
| 给药剂量 | mg/kg |  |
动物平均体重 | g | |
每只动物给药体积 | ul | |
动物数量 | 只 |
| 第二步：请输入动物体内配方组成（配方适用于不溶于水的药物；不同批次药物配方比例不同，请联系GLPBIO为您提供正确的澄清溶液配方） | ||||||||||
| % DMSO % % Tween 80 % saline | ||||||||||
| 计算重置 | ||||||||||
计算结果:
工作液浓度： mg/ml；
DMSO母液配制方法： mg 药物溶于 μL DMSO溶液（母液浓度 mg/mL，
体内配方配制方法：取 μL DMSO母液，加入 μL PEG300，混匀澄清后加入μL Tween 80，混匀澄清后加入 μL saline，混匀澄清。
1. 首先保证母液是澄清的；
2.
一定要按照顺序依次将溶剂加入，进行下一步操作之前必须保证上一步操作得到的是澄清的溶液，可采用涡旋、超声或水浴加热等物理方法助溶。
3. 以上所有助溶剂都可在 GlpBio 网站选购。
Quality Control & SDS
- View current batch:
- Purity: >98.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet