Tefinostat
(Synonyms: CHR-2845) 目录号 : GC37753
Tefinostat (CHR-2845) 是一种单核细胞/巨噬细胞靶向的 HDAC 广谱抑制剂，通过细胞内酯酶人羧酸酯酶-1 (hCE-1) 切割成活性酸 CHR-2847。具有抗抗单核细胞系白血病活性。
Cas No.:914382-60-8
Sample solution is provided at 25 µL, 10mM.
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Quality Control & SDS
- View current batch:
- Purity: >98.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
Tefinostat (CHR-2845) is a monocyte/macrophage-targeted pan HDAC inhibitor, cleaved into active acid CHR-2847 by the intracellular esterase human carboxylesterase-1 (hCE-1). Anti-monocytoid lineage leukaemias activity[1]. HDAC
[1]. Zabkiewicz J, et al. The targeted histone deacetylase inhibitor tefinostat (CHR-2845) shows selective in vitro efficacy in monocytoid-lineage leukaemias. Oncotarget. 2016 Mar 29;7(13):16650-62.
| Cas No. | 914382-60-8 | SDF | |
| 别名 | CHR-2845 | ||
| Canonical SMILES | O=C(OC1CCCC1)[C@H](C2=CC=CC=C2)NCC3=CC=C(NC(CCCCCCC(NO)=O)=O)C=C3 | ||
| 分子式 | C28H37N3O5 | 分子量 | 495.61 |
| 溶解度 | DMSO: 100 mg/mL (201.77 mM) | 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。 |
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| 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 | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 2.0177 mL | 10.0886 mL | 20.1772 mL |
| 5 mM | 0.4035 mL | 2.0177 mL | 4.0354 mL |
| 10 mM | 0.2018 mL | 1.0089 mL | 2.0177 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。
The targeted histone deacetylase inhibitor Tefinostat (CHR-2845) shows selective in vitro efficacy in monocytoid-lineage leukaemias
Oncotarget 2016 Mar 29;7(13):16650-62.PMID:26934551DOI:10.18632/oncotarget.7692.
Tefinostat (CHR-2845) is a novel monocyte/macrophage-targeted histone deacetylase (HDAC) inhibitor which is cleaved into its active acid by the intracellular esterase human carboxylesterase-1 (hCE-1). The in vitro efficacy of Tefinostat was characterised in cell lines and in a cohort of 73 primary AML and CMML samples. Dose-dependent induction of apoptosis and significant growth inhibitory effects were seen in myelomonocytic (M4), monocytic/monoblastic (M5) and CMML samples in comparison to non-monocytoid AML sub-types (p = 0.007). Importantly, no growth inhibitory effects were seen in normal bone marrow CD34+ cells exposed to AML-toxic doses of Tefinostat in clonogenic assays. Expression of hCE-1 was measured by intracellular flow cytometry and immunoblotting across the cohort, with highest levels seen in M5 AML patients. hCE-1 levels correlated with significantly increased Tefinostat sensitivity (low EC50) as measured by growth inhibition assays (p = 0.001) and concomitant elevation of the mature monocytoid marker CD14+. Strong induction of intracellular histone protein acetylation was observed in tefinostat-responsive samples, as were high levels of the DNA damage sensor γ-H2A.X, highlighting potential biomarkers of patient responsiveness. Synergistic interaction between Tefinostat and the current standard treatment cytarabine was demonstrated in dose response and clonogenic assays using simultaneous drug addition in primary samples (median Combination Index value = 0.51). These data provide a strong rationale for the further clinical evaluation of Tefinostat in monocytoid-lineage haematological neoplasms including CMML and monocyte-lineage AMLs.
A phase I first-in-human study with Tefinostat - a monocyte/macrophage targeted histone deacetylase inhibitor - in patients with advanced haematological malignancies
Br J Haematol 2013 Jul;162(2):191-201.PMID:23647373DOI:10.1111/bjh.12359.
Tefinostat (CHR-2845) is a monocyte/macrophage targeted histone deacetylase inhibitor (HDACi). This first-in-human, standard 3 + 3 dose escalating trial of oral, once daily Tefinostat was conducted to determine the safety, tolerability, pharmacokinetic and pharmacodynamic profile of Tefinostat in relapsed/refractory haematological diseases. Eighteen patients were enrolled at doses of 20-640 mg. Plasma concentrations of Tefinostat exceeded those demonstrated to give in vitro anti-proliferative activity. Flow cytometric pharmacodynamic assays demonstrated monocyte-targeted increases in protein acetylation, without corresponding changes in lymphocytes. Dose-limiting toxicities (DLTs) were not observed and dose escalation was halted at 640 mg without identification of the maximum tolerated dose. Drug-related toxicities were largely Common Toxicity Criteria for Adverse Events grade 1/2 and included nausea, anorexia, fatigue, constipation, rash and increased blood creatinine. A patient with chronic monomyelocytic leukaemia achieved a bone marrow response, with no change in peripheral monocytes. An acute myeloid leukaemia type M2 patient showed a >50% decrease in bone marrow blasts and clearance of peripheral blasts. In conclusion, Tefinostat produces monocyte-targeted HDACi activity and is well tolerated, without the DLTs, e.g. fatigue, diarrhoea, thrombocytopenia, commonly seen with non-targeted HDACi. The early signs of efficacy and absence of significant toxicity warrant further evaluation of Tefinostat in larger studies. (clinicaltrials.gov identifier: NCT00820508).