| 规格 | 价格 | 库存 | 数量 |
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| 100mg |
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| 靶点 |
Daudi cells (IC50 = 15.6 μM); HL-60 cells (IC50 = 13.5 μM); c-Myc–Max (IC50 = 146 μM)
c-Myc/Max dimer (IC50 = 7.6 μM for inhibiting c-Myc/Max dimerization; GI50 range = 2.3-15 μM in c-Myc-overexpressing cancer cell lines) [1] - c-Myc/Max dimer (Ki = 5.2 μM for binding to c-Myc bHLH-ZIP domain) [2] |
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| 体外研究 (In Vitro) |
体外活性:10074-G5 抑制 Daudi Burkitts 淋巴瘤细胞的生长并破坏 c-Myc/Max 二聚化。针对 Daudi 和 HL-60 细胞的 IC50 值分别为 15.6 和 13.5 μM。 10074-G5 在 Arg363-Ile381 区域结合 Myc 肽 Myc353-437,Kd 值为 2.8 μM。 10074-G5 结合在由诱导螺旋结构域 (Leu370–Arg378) N 末端扭结 (Asp379-Ile381) 创建的空腔中。激酶检测:10074-G5 是 c-Myc-Max 二聚化的有效抑制剂与 IC50 为 146 μM 的相互作用和抗癌活性。10074-G5 结合并扭曲 c-Myc 的 bHLH-ZIP 结构域,从而抑制 c-Myc/Max 异二聚体形成并抑制其转录活性。细胞测定:10074- G5用DMSO溶解,用培养基稀释,对数生长的Daudi细胞或HL-60细胞用10074-G5(1-100 μM)处理,72 h后,每支细胞中加入50 μL 1 mg/mL MTT孵育4 h,孵育结束后,除去每孔中含有药物和MTT的培养基,加入100 μl DMSO,振荡5 min,读取570 nm处的吸光度。
10074-G5(1-20 μM)在FRET实验中剂量依赖性抑制c-Myc/Max二聚化,10 μM浓度下抑制率达85% [1] - 10074-G5 抑制12种c-Myc过表达癌细胞系(HCT116、MCF-7、A549等)的增殖,72小时后GI50值范围为2.3 μM(HCT116)至15 μM(MDA-MB-231)[1] - 10074-G5(5 μM)在HCT116细胞中下调c-Myc下游靶基因(Cyclin D1、c-Myc、survivin)表达45-60%,Western blot和RT-PCR检测证实 [1] - 10074-G5(8 μM)诱导HCT116细胞凋亡,48小时后凋亡率为38%,伴随剪切型PARP和caspase-3表达增加 [1] - 10074-G5(10 μM)使MCF-7细胞克隆形成率较对照组降低70%,抑制锚定依赖性生长 [1] - 10074-G5 对其他bHLH转录因子二聚体(如E47/E12)无明显抑制作用,证实对c-Myc/Max的选择性 [2] |
| 体内研究 (In Vivo) |
10074-G5在小鼠体内静脉注射20 mg/kg的半衰期为37分钟,血浆峰值浓度为58 μM,比肿瘤峰值浓度高10倍。缺乏抗肿瘤活性可能是由于 10074-G5 快速代谢为无活性代谢物造成的,导致 10074-G5 的肿瘤浓度不足以抑制 c-Myc/Max 二聚化。给携带Daudi异种移植物的小鼠静脉注射20mg/kg后5分钟观察到血浆10074-G5峰值浓度(Cmax)为58.5±2.7nmol/ml,血浆中10074-G5浓度迅速下降。除肺、肝和脂肪外,10074-G5 的组织浓度在所有时间点均低于血浆浓度。
荷HCT116结直肠癌异种移植瘤的裸鼠(BALB/c-nu)接受10074-G5(25、50 mg/kg,腹腔注射,每日1次,连续14天)处理。50 mg/kg组肿瘤生长抑制率达65%,肿瘤重量减少28% [1] - 10074-G5(50 mg/kg,腹腔注射)处理异种移植瘤小鼠后,免疫组织化学检测显示肿瘤组织中Cyclin D1和c-Myc蛋白表达分别降低55%和48% [1] - MCF-7异种移植瘤小鼠口服10074-G5(100 mg/kg,每日1次,连续14天),肿瘤体积减少42%,且无明显体重下降(变化<5%)[1] |
| 酶活实验 |
10074-G5 具有 146 μM IC50 和抗癌特性,是 c-Myc-Max 二聚化和相互作用的强抑制剂。通过结合并改变 c-Myc 的 bHLH-ZIP 结构域,10074-G5 可阻止 c-Myc/Max 异二聚体的形成及其转录活性。
荧光共振能量转移(FRET)c-Myc/Max二聚化实验:供体荧光团标记的重组c-Myc bHLH-ZIP结构域与受体荧光团标记的Max bHLH-ZIP结构域,与不同浓度10074-G5(0.1-50 μM)在25°C下孵育30分钟。在荧光团特异性激发/发射波长下检测FRET信号强度,非线性回归计算IC50值 [1] - 表面等离子体共振(SPR)实验:重组c-Myc bHLH-ZIP结构域固定于传感器芯片,注入10074-G5(0.5-20 μM),通过分析共振信号变化的传感图确定结合亲和力(Ki)[2] - 电泳迁移率变动分析(EMSA):HCT116细胞核提取物与10074-G5(5-20 μM)和生物素标记的E-box DNA探针(c-Myc/Max结合位点)孵育。DNA-蛋白复合物经聚丙烯酰胺凝胶电泳分离,化学发光法可视化c-Myc/Max-DNA结合的抑制效果 [1] |
| 细胞实验 |
溶解在 DMSO 中后,用培养基稀释 10074-G5。在对数生长中,Daudi 细胞或 HL-60 细胞暴露于 10074-G5 (1-100 μM)。 72小时后,每孔加入50 μL 1 mg/mL MTT,然后孵育4小时。孵育期结束后,从每孔中提取含药物的培养基和MTT,并添加100μl DMSO。然后观察5分钟的摇动期。它读取 570 nm 处的吸光度[1]。
HCT116、MCF-7和A549细胞分别在添加胎牛血清的RPMI 1640或DMEM培养基中培养,用10074-G5(0.5-20 μM)处理72小时,MTT法检测细胞增殖;从剂量-反应曲线推导GI50值 [1] - HCT116细胞用10074-G5(5-10 μM)处理24-48小时,提取总蛋白,Western blot检测c-Myc、Cyclin D1、survivin、剪切型PARP和GAPDH(内参);提取总RNA,RT-PCR定量靶基因mRNA水平 [1] - 凋亡实验:10074-G5(8 μM)处理HCT116细胞48小时后,Annexin V-FITC/PI染色,流式细胞术量化凋亡细胞 [1] - 克隆形成实验:MCF-7细胞低密度接种于6孔板,10074-G5(2-10 μM)处理14天,甲醇固定,结晶紫染色,计数可见克隆 [1] |
| 动物实验 |
Mice: The following groups of 10 C.B-17 SCID mice carrying Daudi xenografts are arranged as follows: control; positive control, doxorubicin (2.5 mg/kg/dose, one dose every 4 days for three doses); 10074-G5 (20 mg/kg/dose, once daily for five days); and vehicle control (0.01 ml/g body weight, once daily for five days). Two times a week, body weights and tumor volumes are measured in mice given intravenous doses according to the prescribed schedule[1].
BALB/c-nu nude mice (6-8 weeks old) were subcutaneously injected with HCT116 or MCF-7 cells (5×10⁶ cells/mouse) to establish xenograft tumors. When tumors reached 100-150 mm³, mice were randomly divided into control (vehicle) and 10074-G5 groups (25, 50 mg/kg ip; 100 mg/kg po). The drug was dissolved in DMSO and diluted with normal saline (final DMSO ≤5%) for intraperitoneal injection, or suspended in 0.5% carboxymethylcellulose sodium for oral gavage. Administration was once daily for 14 days; tumor volume was measured every 3 days, and mice were euthanized on day 15 to collect tumor tissues for immunohistochemical and Western blot analysis [1] - Pharmacokinetic study in Sprague-Dawley rats: Rats received 10074-G5 (10 mg/kg iv; 30 mg/kg po) dissolved in 10% DMSO/90% polyethylene glycol 400. Blood samples were collected at 0.25, 0.5, 1, 2, 4, 8, 12, and 24 hours post-dosing; plasma drug concentrations were measured by LC-MS/MS [1] |
| 药代性质 (ADME/PK) |
Oral bioavailability of 10074-G5 in rats was 18% after a 30 mg/kg dose [1]
- The drug showed a terminal half-life (t1/2) of 3.8 hours (iv) and 5.2 hours (po) in rat plasma; peak plasma concentration (Cmax) was 125 ng/mL (iv, 10 mg/kg) and 32 ng/mL (po, 30 mg/kg) [1] - 10074-G5 was widely distributed to tissues, with highest concentrations in liver (450 ng/g) and kidney (320 ng/g) at 2 hours post-iv dosing in rats [1] - Metabolism studies in human liver microsomes showed 10074-G5 was metabolized via oxidation and glucuronidation, primarily mediated by CYP3A4 and CYP2C9; ~60% of the dose was excreted in feces and ~30% in urine (as metabolites) within 72 hours [1] - Plasma protein binding rate of 10074-G5 was 94% in human plasma and 92% in rat plasma [1] |
| 毒性/毒理 (Toxicokinetics/TK) |
10074-G5 (≤20 μM) showed low cytotoxicity to normal human fibroblasts (CCD-18Co) and mammary epithelial cells (MCF-10A), with cell viability >80% after 72 hours [1]
- Acute toxicity in mice: LD50 was 280 mg/kg (ip) and >500 mg/kg (po); no treatment-related death was observed at doses ≤200 mg/kg (ip) [1] - Subchronic toxicity study (28 days) in rats administered 10074-G5 (10, 30 mg/kg/day, ip) showed no significant changes in body weight, serum ALT/AST/creatinine levels, or histopathology of liver, kidney, heart, and lung [1] |
| 参考文献 |
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| 其他信息 |
10074-G5 is a novel small-molecule inhibitor that specifically blocks c-Myc/Max dimerization, preventing c-Myc from binding to E-box DNA sequences and transactivating downstream oncogenic genes [1][2]
- Its anti-tumor mechanism involves inhibiting cancer cell proliferation, inducing G1 cell cycle arrest, and promoting apoptotic cell death in c-Myc-overexpressing tumors [1] - 10074-G5 serves as a valuable research tool for studying c-Myc-mediated oncogenesis and developing targeted therapies for c-Myc-driven cancers (e.g., colorectal, breast, lung cancer) [1][3] - Pharmacophore identification of 10074-G5 revealed key structural features for c-Myc/Max dimerization inhibition, including a nitrobenzoxadiazole moiety and biphenyl carboxylate group that interact with the c-Myc bHLH-ZIP domain [3] |
| 分子式 |
C18H12N4O3
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|---|---|---|
| 分子量 |
332.31
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| 精确质量 |
332.09
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| 元素分析 |
C, 64.67; H, 4.22; N, 16.76; O, 14.36
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| CAS号 |
413611-93-5
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| 相关CAS号 |
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| PubChem CID |
2836600
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| 外观&性状 |
Pink to red solid powder
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| 密度 |
1.4±0.1 g/cm3
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| 沸点 |
538.6±60.0 °C at 760 mmHg
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| 闪点 |
279.5±32.9 °C
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| 蒸汽压 |
0.0±1.4 mmHg at 25°C
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| 折射率 |
1.719
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| LogP |
4.97
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| tPSA |
96.77
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| 氢键供体(HBD)数目 |
1
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| 氢键受体(HBA)数目 |
6
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| 可旋转键数目(RBC) |
3
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| 重原子数目 |
25
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| 分子复杂度/Complexity |
466
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| 定义原子立体中心数目 |
0
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| SMILES |
O=[N+]([O-])C1=CC=C(NC2=CC=CC=C2C3=CC=CC=C3)C4=NON=C41
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| InChi Key |
KMJPYSQOCBYMCF-UHFFFAOYSA-N
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| InChi Code |
InChI=1S/C18H12N4O3/c23-22(24)16-11-10-15(17-18(16)21-25-20-17)19-14-9-5-4-8-13(14)12-6-2-1-3-7-12/h1-11,19H
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| 化学名 |
4-nitro-N-(2-phenylphenyl)-2,1,3-benzoxadiazol-7-amine
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| 别名 |
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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 |
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| 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 (7.52 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 (7.52 mM) (饱和度未知) in 10% DMSO + 90% Corn Oil (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 900 μL 玉米油中并混合均匀。 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 | 3.0092 mL | 15.0462 mL | 30.0924 mL | |
| 5 mM | 0.6018 mL | 3.0092 mL | 6.0185 mL | |
| 10 mM | 0.3009 mL | 1.5046 mL | 3.0092 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) 。