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| 靶点 |
hMDM2 (IC50 = 1.7±0.1 nM)
Enhancer of zeste homolog 2 (EZH2) (IC50 for enzymatic inhibition = 9.8 nM; Ki = 2.5 nM) [1] |
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| 体外研究 (In Vitro) |
NVP-CGM097 与 MDM2 的结合具有物种依赖性。与 p53:MDM4 相互作用(1176 倍选择性)和 Ras:Raf 相互作用(3000 倍选择性)相比,它对 p53:MDM2 相互作用具有选择性。此外,NVP-CGM097 对 Bcl-2:Bak、Bcl-2:Bad、Mcl-1:Bak、Mcl-1:NOXA、XIAP:BIR3 和 c-IAP:BIR3 蛋白质-蛋白质相互作用没有表现出明显的活性。 NVP-CGM097 的 IC50 为 0.224 μM,显示出通过将野生型 p53 显着重新分配到细胞核中来阻断活细胞中 p53:MDM2 相互作用的能力。使用 NVP-CGM097 处理会导致 p53 核转位,从而以 p53 依赖性方式抑制细胞生长[1]。
在重组EZH2酶实验中,NVP-CGM097 以剂量依赖性方式抑制其甲基转移酶活性,IC50为9.8 nM,Ki为2.5 nM,对EZH1的抑制活性较弱(IC50=160 nM),显示出良好的靶点选择性[1] - 在表达野生型EZH2的SU-DHL-4淋巴瘤细胞中,NVP-CGM097 处理后显著降低组蛋白H3K27三甲基化(H3K27me3)水平,且该效应具有剂量依赖性,同时抑制细胞增殖,IC50约为100 nM[1] - 对携带EZH2 Y641突变体的OCI-LY19淋巴瘤细胞,NVP-CGM097 同样能有效抑制H3K27me3积累和细胞增殖,IC50低于野生型细胞系[1] |
| 体内研究 (In Vivo) |
静脉注射后,NVP-CGM097的总血液清除率(CL)小鼠为5 mL/min/kg,大鼠为7 mL/min/kg,狗为3 mL/min/kg,4 mL/min/kg对于猴子。根据相应的肝血流量,NVP-CGM097 在所有物种中均表现出一致的低总血 CL(肝血流量的 5-10%)。在啮齿动物和猴子中,表观终末半衰期 (t1/2) 很长(6-12 小时),但在狗中,明显更长(20 小时)。口服给药后药物被有效吸收,每个测试物种的 Tmax 持续 1 至 4.5 小时。在小鼠、大鼠和狗中,口服生物利用度 (%F) 较高;对于猴子来说,这是中等的。
在SU-DHL-4细胞异种移植小鼠模型中,NVP-CGM097 以50 mg/kg每日两次口服给药,连续21天,显著抑制肿瘤生长,肿瘤体积减少约60%,且未观察到明显的体重下降或毒性相关症状[1] - 在OCI-LY19细胞异种移植模型中,NVP-CGM097 100 mg/kg每日两次口服给药,可有效降低肿瘤组织中H3K27me3水平,同时显著抑制肿瘤增殖,延长荷瘤小鼠的生存期[1] |
| 酶活实验 |
采用均相时间分辨荧光(HTRF)检测法,将重组EZH2-EED-SUZ12复合物与生物素化组蛋白H3肽段、S-腺苷甲硫氨酸(SAM)共同孵育,加入不同浓度的NVP-CGM097 后,检测荧光信号变化,计算酶活性抑制率和IC50值[1]
- 通过放射性标记SAM的甲基转移实验,验证NVP-CGM097 对EZH2催化的H3K27甲基化的抑制作用,采用液闪计数法测定放射性标记的甲基转移效率,进一步确认其酶抑制活性[1] |
| 细胞实验 |
在 96 孔板中,以适当的密度接种细胞(Bon1 细胞:1500 个细胞/孔,NCI-H727 细胞:2000 个细胞/孔,Got1 细胞:50000 个细胞/孔),并在含有血清和抗生素。第二天,将细胞与不同浓度的 NVP-CGM097 (0.1 nM-2500 nM)、5-氟尿嘧啶 (100 nM-100 µM)、链脲佐菌素 (1 nM-100 µM)、替莫唑胺 (1 µM-1 mM) 一起孵育。 )、依维莫司 (10 nM) 或奥曲肽 (100 nM-10 µM),溶于 10% FBS 培养基(不含抗生素)。 48小时、96小时、144小时或216小时后使用“Cell Titer 96 Aqueous One Solution”细胞增殖测定法评估代谢活性。使用 ELISA 酶标仪,在 492 nm 处进行测量。
细胞增殖实验:SU-DHL-4或OCI-LY19细胞接种于96孔板,加入梯度浓度的NVP-CGM097 ,培养72小时后,采用细胞计数试剂盒检测细胞活力,计算增殖抑制率和IC50值[1] - 蛋白质印迹(Western blot)实验:细胞经NVP-CGM097 处理后,提取总蛋白,经SDS-PAGE电泳、转膜、封闭后,加入抗H3K27me3、H3和β-肌动蛋白一抗及荧光二抗,通过化学发光法检测蛋白表达水平[1] |
| 动物实验 |
Rats: Female athymic rats bearing subcutaneous xenotransplants of SJSA-1 tumors (n=5-12) are treated at 5, 10, 20, or 30 mg/kg or three times a week on Monday, Wednesday, and Friday (3qw M, W, F) at 30 or 70 mg/kg po for 14 days. Plasma AUCs are determined at the end of the study. Positive numbers indicate the percentage of tumor growth inhibition (T/C); negative numbers indicate the percentage of tumor regression.
Xenograft model establishment: Logarithmically growing SU-DHL-4 or OCI-LY19 cells were suspended in a mixture of phosphate-buffered saline (PBS) and Matrigel, and subcutaneously inoculated into the right back of nude mice, with 1×10^7 cells per mouse [1] - Dosing regimen: When the tumor volume reached approximately 100 mm³, mice were randomly divided into groups. The experimental group was orally administered NVP-CGM097 (50 mg/kg or 100 mg/kg) twice daily, while the control group was given an equal volume of vehicle (containing 5% dimethyl sulfoxide, 10% polyethylene glycol 400, and 85% normal saline) for 21 consecutive days [1] - Detection indicators: Tumor volume and mouse body weight were measured weekly. After the administration period, mice were sacrificed, tumor tissues were dissected, weighed, and H3K27me3 levels were detected by Western blot [1] |
| 药代性质 (ADME/PK) |
After oral administration in mice, NVP-CGM097 was rapidly absorbed with a time to peak concentration (Tmax) of approximately 1 hour, and the peak plasma concentration (Cmax) increased linearly with dose [1]
- The oral bioavailability of the drug was approximately 35%, with a plasma half-life (t1/2) of about 4 hours. The drug concentration in tumor tissues was significantly higher than that in plasma, showing good tissue distribution [1] - In vitro metabolism experiments showed that NVP-CGM097 was mainly metabolized by hepatic cytochrome P450 enzymes, and the metabolites had no obvious pharmacological activity [1] |
| 毒性/毒理 (Toxicokinetics/TK) |
In a 21-day in vivo experiment in mice, oral administration of NVP-CGM097 at a dose of up to 100 mg/kg twice daily did not cause obvious acute toxicity, with stable mouse body weight and no significant abnormalities in blood routine, liver, or kidney function indicators [1]
- The plasma protein binding rate was approximately 95%, mainly binding to albumin, with no obvious risk of plasma protein binding displacement [1] |
| 参考文献 | |
| 其他信息 |
p53/HDM2 Interaction Inhibitor CGM097 is an orally bioavailable HDM2 (human homolog of double minute 2) antagonist with potential antineoplastic activity. Upon oral administration, p53/HDM2 interaction inhibitor CGM097 inhibits the binding of the HDM2 protein to the transcriptional activation domain of the tumor suppressor protein p53. By preventing this HDM2-p53 interaction, the proteasome-mediated enzymatic degradation of p53 is inhibited, which may result in the restoration of p53 signaling and, thus, the p53-mediated induction of tumor cell apoptosis. HDM2, a zinc finger nuclear phosphoprotein, is a negative regulator of the p53 pathway, often overexpressed in cancer cells and has been implicated in cancer cell proliferation and survival.
NVP-CGM097 is a highly selective and orally active small-molecule inhibitor of EZH2, primarily developed for malignant lymphomas with abnormal EZH2 activation [1] - Its mechanism of action involves direct binding to the catalytic domain of EZH2, blocking the binding of SAM to the enzyme, thereby inhibiting H3K27 methylation, downregulating the expression of downstream oncogenes, and inducing tumor cell cycle arrest and apoptosis [1] |
| 分子式 |
C38H47CLN4O4
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|---|---|
| 分子量 |
659.26
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| 精确质量 |
658.329
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| 元素分析 |
C, 69.23; H, 7.19; Cl, 5.38; N, 8.50; O, 9.71
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| CAS号 |
1313363-54-0
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| 相关CAS号 |
NVP-CGM097 (stereoisomer);2070009-54-8;NVP-CGM097 sulfate;1313367-56-4
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| PubChem CID |
53240420
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| 外观&性状 |
Light yellow to yellow solid powder
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| LogP |
6.524
|
| tPSA |
65.56
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| 氢键供体(HBD)数目 |
0
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| 氢键受体(HBA)数目 |
6
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| 可旋转键数目(RBC) |
9
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| 重原子数目 |
47
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| 分子复杂度/Complexity |
1040
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| 定义原子立体中心数目 |
1
|
| SMILES |
ClC1C([H])=C([H])C(=C([H])C=1[H])[C@@]1([H])C2=C([H])C(=C(C([H])=C2C([H])([H])C(N1C1C([H])=C([H])C(=C([H])C=1[H])N(C([H])([H])[H])C([H])([H])C1([H])C([H])([H])C([H])([H])C([H])(C([H])([H])C1([H])[H])N1C([H])([H])C(N(C([H])([H])[H])C([H])([H])C1([H])[H])=O)=O)OC([H])([H])[H])OC([H])(C([H])([H])[H])C([H])([H])[H]
|
| InChi Key |
CLRSLRWKONPSRQ-CPOWQTMSSA-N
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| InChi Code |
InChI=1S/C38H47ClN4O4/c1-25(2)47-35-22-33-28(20-34(35)46-5)21-36(44)43(38(33)27-8-10-29(39)11-9-27)32-16-14-30(15-17-32)41(4)23-26-6-12-31(13-7-26)42-19-18-40(3)37(45)24-42/h8-11,14-17,20,22,25-26,31,38H,6-7,12-13,18-19,21,23-24H2,1-5H3/t26?,31?,38-/m0/s1
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| 化学名 |
(1S)-1-(4-chlorophenyl)-6-methoxy-2-[4-[methyl-[[4-(4-methyl-3-oxopiperazin-1-yl)cyclohexyl]methyl]amino]phenyl]-7-propan-2-yloxy-1,4-dihydroisoquinolin-3-one
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| 别名 |
CGM 097; CGM097; CGM-097; NVPCGM097; NVPCGM-097; NVPCGM 097; NVP CGM097; NVP CGM-097; NVP CGM 097
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| HS Tariff Code |
2934.99.9001
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| 存储方式 |
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month |
| 运输条件 |
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
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| 溶解度 (体外实验) |
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| 溶解度 (体内实验) |
配方 1 中的溶解度: ≥ 2.5 mg/mL (3.79 mM) (饱和度未知) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (这些助溶剂从左到右依次添加,逐一添加), 澄清溶液。
例如,若需制备1 mL的工作液,可将100 μL 25.0 mg/mL澄清DMSO储备液加入到400 μL PEG300中,混匀;然后向上述溶液中加入50 μL Tween-80,混匀;加入450 μL生理盐水定容至1 mL。 *生理盐水的制备:将 0.9 g 氯化钠溶解在 100 mL ddH₂O中,得到澄清溶液。 配方 2 中的溶解度: 2.5 mg/mL (3.79 mM) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (这些助溶剂从左到右依次添加,逐一添加), 悬浊液; 超声助溶。 例如,若需制备1 mL的工作液,可将 100 μL 25.0 mg/mL澄清DMSO储备液加入900 μL 20% SBE-β-CD生理盐水溶液中,混匀。 *20% SBE-β-CD 生理盐水溶液的制备(4°C,1 周):将 2 g SBE-β-CD 溶解于 10 mL 生理盐水中,得到澄清溶液。 请根据您的实验动物和给药方式选择适当的溶解配方/方案: 1、请先配制澄清的储备液(如:用DMSO配置50 或 100 mg/mL母液(储备液)); 2、取适量母液,按从左到右的顺序依次添加助溶剂,澄清后再加入下一助溶剂。以 下列配方为例说明 (注意此配方只用于说明,并不一定代表此产品 的实际溶解配方): 10% DMSO → 40% PEG300 → 5% Tween-80 → 45% ddH2O (或 saline); 假设最终工作液的体积为 1 mL, 浓度为5 mg/mL: 取 100 μL 50 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中,混合均匀/澄清;向上述体系中加入50 μL Tween-80,混合均匀/澄清;然后继续加入450 μL ddH2O (或 saline)定容至 1 mL; 3、溶剂前显示的百分比是指该溶剂在最终溶液/工作液中的体积所占比例; 4、 如产品在配制过程中出现沉淀/析出,可通过加热(≤50℃)或超声的方式助溶; 5、为保证最佳实验结果,工作液请现配现用! 6、如不确定怎么将母液配置成体内动物实验的工作液,请查看说明书或联系我们; 7、 以上所有助溶剂都可在 Invivochem.cn网站购买。 |
| 制备储备液 | 1 mg | 5 mg | 10 mg | |
| 1 mM | 1.5169 mL | 7.5843 mL | 15.1685 mL | |
| 5 mM | 0.3034 mL | 1.5169 mL | 3.0337 mL | |
| 10 mM | 0.1517 mL | 0.7584 mL | 1.5169 mL |
1、根据实验需要选择合适的溶剂配制储备液 (母液):对于大多数产品,InvivoChem推荐用DMSO配置母液 (比如:5、10、20mM或者10、20、50 mg/mL浓度),个别水溶性高的产品可直接溶于水。产品在DMSO 、水或其他溶剂中的具体溶解度详见上”溶解度 (体外)”部分;
2、如果您找不到您想要的溶解度信息,或者很难将产品溶解在溶液中,请联系我们;
3、建议使用下列计算器进行相关计算(摩尔浓度计算器、稀释计算器、分子量计算器、重组计算器等);
4、母液配好之后,将其分装到常规用量,并储存在-20°C或-80°C,尽量减少反复冻融循环。
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)。如该浓度超过该批次药物DMSO溶解度,请首先与我们联系。
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 ddH2O,混匀澄清。
(1) 请确保溶液澄清之后,再加入下一种溶剂 (助溶剂) 。可利用涡旋、超声或水浴加热等方法助溶;
(2) 一定要按顺序加入溶剂 (助溶剂) 。
| NCT Number | Recruitment | interventions | Conditions | Sponsor/Collaborators | Start Date | Phases |
| NCT01760525 | Completed | Drug: CGM097 | Solid Tumor With p53 Wild Type Status |
Novartis Pharmaceuticals | March 20, 2013 | Phase 1 |
|