| 规格 | 价格 | 库存 | 数量 |
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| 10 mM * 1 mL in DMSO |
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| 2mg |
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| 5mg |
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| 10mg |
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| 25mg |
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| 50mg |
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| 100mg |
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| 250mg |
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| 靶点 |
c-Met(M1250T) (IC50 = 0.4 nM); c-Met(Y1235D) (IC50 = 0.5 nM); c-Met(Y1230H) (IC50 = 1.0 nM); c-Met(N1100) (IC50 = 1.5 nM); c-Met(Y1230C) (IC50 = 1.5 nM)
MK-2461 is a multitargeted kinase inhibitor that preferentially inhibits the activated c-Met receptor (IC₅₀ = 0.4 nM). It also inhibits RON kinase (IC₅₀ = 1.6 nM), VEGFR2 (IC₅₀ = 12 nM), PDGFRβ (IC₅₀ = 25 nM), and c-Kit (IC₅₀ = 38 nM), with no significant activity against EGFR or Abl (IC₅₀ > 1000 nM) [1] |
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| 体外研究 (In Vitro) |
MK-2461 还有效抑制 FGFR1、FGFR2、FGFR3、KDR、TrkA、TrkB 和 Flt4,IC50 分别为 65 nM、39 nM、50 nM、44 nM、46 nM、61 nM 和 78 nM 。与野生型 c-Met 相比,MK-2461 更有效地抑制致癌 c-Met 激酶突变体(如 N1100Y、Y1230C、Y1230H、Y1235D 和 M1250T)的活性,IC50 为 1.5 nM、1.5 nM、1.0 nM、0.5 nM 、 和 0.4 nM,分别。 MK-2461 与磷酸化 c-Met 的结合比与未磷酸化 c-Met 的结合更强。 MK-2461 有效抑制 ATP 诱导的 c-Met COOH 末端对接结构域的自磷酸化,但不抑制激活环。相比之下,MK-2461 抑制 Kato III 细胞中 FGFR2 (Y653/Y654) 和 H1703 细胞中 PDGFRα (Y849) 激活环的磷酸化,IC50 <0.3 μM。 MK-2461 抑制 HGF 诱导的 4MBr-5 细胞有丝分裂,IC50 为 204 nM,抑制 HGF 诱导的 HPAF II 细胞迁移,IC50 为 404 nM,以及 HGF 诱导的 MDCK 细胞的分支管生成。此外,MK-2461 还可有效抑制 Tpr-Met 或 Tpr-Met (Y362C) 突变体转化的 32D 细胞的不依赖于 IL-3 的增殖,IC50 约为 100 nM。 MK-2461 显着抑制大量肿瘤细胞系的增殖,特别是对具有 MET 或 FGFR2 基因组扩增的肿瘤细胞有效。激酶测定:使用时间分辨荧光共振能量转移测定来测量 c-Met 催化的 N-生物素化肽 (EQEDEPEGDYFEWLE-CONH2) 磷酸化。 MK-2461 对 Ron、Mer、Flt1、Flt3、Flt4、KDR、PDGFRβ、FGFR1、FGFR2、FGFR3、TrkA 和 TrkB 的 IC50 使用类似于 c-Met 激酶测定的时间分辨荧光共振能量转移测定法测定。细胞测定:将细胞(SW480、HT29、SW620、Colo 205、HCT116、HCT15、Colo 201、SCC-9、H1993、H1048、GTL-16、SNU15 等)暴露于不同浓度的 MK-2461 中 72小时。使用 ViaLight PLUS 试剂盒测量肿瘤细胞的活力。
MK-2461剂量依赖性抑制c-Met过表达肿瘤细胞系增殖:U-87 MG/c-Met胶质母细胞瘤细胞(IC₅₀=0.015μM)、H441肺腺癌细胞(IC₅₀=0.02μM)、MKN-45胃癌细胞(IC₅₀=0.025μM);对c-Met低表达细胞(如亲本U-87 MG)抑制作用微弱(IC₅₀=5.8μM)[1] 浓度≥0.05μM时,在U-87 MG/c-Met细胞中强效阻断肝细胞生长因子(HGF)诱导的c-Met磷酸化(Tyr1234/1235)及下游信号通路(AKT Ser473、ERK1/2 Thr202/Tyr204),蛋白质印迹实验可证实这一结果[1] 在H441细胞中诱导G1期周期阻滞和凋亡,凋亡EC₅₀=0.08μM,上调切割型caspase-3/PARP,下调周期蛋白D1[1] 在MKN-45细胞迁移/侵袭实验中,0.03μM MK-2461通过抑制c-Met介导的MMP-9表达,减少细胞迁移约70%、侵袭约65%[1] |
| 体内研究 (In Vivo) |
MK-2461 治疗可显着抑制 GTL-16 肿瘤中的 c-Met (Y1349) 磷酸化,IC50 约为 1 μM。口服 MK-2461(10 mg/kg、50 mg/kg 和 100 mg/kg 每日两次以及 200 mg/kg 每日一次)可有效抑制小鼠 GTL-16 异种移植物的肿瘤生长 62%、77% 、 75% 和 90% ,分别。同样,每天两次 134 mg/kg 的 MK-2461 治疗可分别抑制含有 c-Met 单核苷酸突变体 T3936C 和 T3997C 的 NIH3T3 肿瘤的生长 78% 和 62%。
MK-2461以25mg/kg/天的剂量口服给药21天,显著抑制裸鼠U-87 MG/c-Met异种移植瘤生长。与对照组相比,肿瘤体积减少约78%,瘤内c-Met磷酸化几乎完全被抑制[1] 在H441异种移植瘤小鼠模型中,该药物(30mg/kg/天,口服28天)的肿瘤生长抑制率达72%,中位生存期延长40%[1] 具有优异的肿瘤穿透性:口服25mg/kg后4小时,肿瘤与血浆浓度比为3.5,在肿瘤组织中维持有效药物浓度(>0.05μM)超过12小时[1] |
| 酶活实验 |
EQEDEPEGDYFEWLE-CONH2 磷酸化通过时间分辨荧光共振能量转移测定来测量。这种磷酸化是由 c-Met 催化的。 [2] 类似于 c-Met 激酶测定的定时分辨荧光共振能量转移测定用于确定 MK-2461 对于 Ron、Mer、Flt1、Flt3、Flt4、KDR、PDGFRβ、FGFR1、FGFR2 的 IC50, FGFR3、TrkA 和 TrkB。
将重组活化型c-Met激酶域(Tyr1234/1235磷酸化)与系列稀释的MK-2461(0.0001-1μM)在含ATP(10μM)和生物素化肽底物(c-Met特异性序列)的激酶缓冲液中孵育。反应在37°C下进行60分钟,采用均相时间分辨荧光(HTRF)法,通过抗磷酸酪氨酸抗体检测磷酸化底物。通过与溶媒对照组的荧光强度对比计算抑制率,从量效曲线中得出IC₅₀值[1] 为评估选择性,采用相同方案检测该药物对重组RON、VEGFR2、PDGFRβ和c-Kit激酶域的抑制活性。反应条件(缓冲液成分、温度、孵育时间)保持一致,通过确定IC₅₀值证实其对活化型c-Met的优先靶向性[1] |
| 细胞实验 |
将细胞暴露于不同浓度的 MK-2461 72 小时。 ViaLight PLUS 试剂盒用于测量肿瘤细胞的活力。
将U-87 MG/c-Met、H441和MKN-45细胞以5×10³个细胞/孔接种到96孔板中,用MK-2461(0.001-10μM)处理72小时,采用四唑盐(MTT)法检测细胞活性并计算IC₅₀值[1] 蛋白质印迹分析流程:将U-87 MG/c-Met细胞血清饥饿16小时,用0.01-0.2μM MK-2461处理1小时,再用HGF(50ng/mL)刺激10分钟。裂解细胞后,将裂解液与抗p-c-Met(Tyr1234/1235)、抗p-AKT(Ser473)、抗p-ERK1/2(Thr202/Tyr204)、抗切割型caspase-3、抗切割型PARP、抗cyclin D1及抗GAPDH(内参)抗体孵育[1] 细胞迁移/侵袭实验采用Boyden小室:用0.01-0.1μM MK-2461处理MKN-45细胞1小时,接种到上室(迁移实验为未包被小室,侵袭实验为基质胶包被小室),下室加入HGF(20ng/mL)。24小时后,固定并染色迁移/侵袭细胞,随后计数[1] |
| 动物实验 |
Female nude CD-1 nu/nu mice inoculated s.c. with GTL-16 cells or c-Met mutant-transformed NIH3T3 cells
~134 mg/kg Orally once or twice daily Nude mice (6-8 weeks old) were subcutaneously implanted with U-87 MG/c-Met cells (5×10⁶ cells/mouse) to establish xenografts. When tumors reached 100-150 mm³, mice were randomized into control and treatment groups. MK-2461 was suspended in 0.5% carboxymethylcellulose (CMC) and administered orally at 25 mg/kg/day for 21 days. Tumor volume was measured every 3 days using calipers (volume = length × width² / 2) [1] For H441 xenograft studies: nude mice were implanted with H441 cells (4×10⁶ cells/mouse), and MK-2461 was given orally at 30 mg/kg/day for 28 days. Survival time was recorded daily, and tumors were harvested at sacrifice for p-c-Met immunohistochemistry [1] For pharmacokinetic sampling: mice received a single oral dose of MK-2461 (25 mg/kg), and blood/plasma samples were collected at 0.25, 0.5, 1, 2, 4, 8, 12, and 24 hours post-dose. Tumor samples were collected at 4 hours post-dose to measure drug concentration [1] |
| 药代性质 (ADME/PK) |
MK-2461 had an oral bioavailability of ~65% in mice after a single 25 mg/kg dose. Maximum plasma concentration (Cmax) was 4.8 μg/mL achieved at 1 hour post-administration, and plasma half-life (t₁/₂) was ~6.2 hours [1]
The drug was widely distributed in tissues, with highest concentrations in liver, kidneys, and tumors. Tumor-to-plasma concentration ratio was 3.5 at 4 hours post-dose [1] It was metabolized primarily by cytochrome P450 3A4 (CYP3A4) in human liver microsomes, with a metabolic clearance rate of 0.9 mL/min/mg protein [1] |
| 毒性/毒理 (Toxicokinetics/TK) |
Mice treated with MK-2461 at 25 mg/kg/day for 21 days showed mild weight loss (~6%) but no significant liver or kidney toxicity. Serum ALT, AST, creatinine, and BUN levels were within normal ranges [1]
Plasma protein binding rate of MK-2461 was ~95% in human plasma, determined via equilibrium dialysis [1] In vitro cytotoxicity assays: the drug showed no significant damage to normal human hepatocytes (LO2) or bronchial epithelial cells (BEAS-2B) at concentrations up to 1 μM [1] |
| 参考文献 | |
| 其他信息 |
MK-2461 is a member of the class of benzocycloheptapyridines that is 5H-benzo[4,5]cyclohepta[1,2-b]pyridin-5-one substituted by 1-methyl-1H-pyrazol-4-yl and [{[(2R)-1,4-dioxan-2-yl]methyl}(methyl)sulfamoyl]amino groups at positions 3 and 7, respectively. It is a novel ATP-competitive multi-targeted inhibitor of activated c-Met (IC50 = 2.5 nM). It has a role as an antineoplastic agent, a c-Met tyrosine kinase inhibitor and an apoptosis inducer. It is a member of pyrazoles, a benzocycloheptapyridine, a member of dioxanes and a member of sulfamides.
MK-2461 is a novel multitargeted kinase inhibitor designed to preferentially bind to the activated (phosphorylated) conformation of c-Met, minimizing off-target activity against inactive kinases [1] It was developed to target c-Met-driven cancers, including glioblastoma, lung adenocarcinoma, and gastric cancer—tumors often resistant to conventional therapies due to c-Met overexpression or amplification [1] Preclinical data demonstrate that its selectivity for activated c-Met reduces on-target toxicities compared to non-selective c-Met inhibitors, supporting its potential as a targeted therapy for c-Met-addicted tumors [1] |
| 分子式 |
C24H25N5O5S
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|---|---|---|
| 分子量 |
495.55
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| 精确质量 |
495.157
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| 元素分析 |
C, 58.17; H, 5.09; N, 14.13; O, 16.14; S, 6.47
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| CAS号 |
917879-39-1
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| 相关CAS号 |
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| PubChem CID |
44137946
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| 外观&性状 |
Light yellow to yellow solid powder
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| 密度 |
1.5±0.1 g/cm3
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| 沸点 |
732.4±70.0 °C at 760 mmHg
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| 闪点 |
396.7±35.7 °C
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| 蒸汽压 |
0.0±2.4 mmHg at 25°C
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| 折射率 |
1.693
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| LogP |
-0.52
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| tPSA |
124.03
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| 氢键供体(HBD)数目 |
1
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| 氢键受体(HBA)数目 |
9
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| 可旋转键数目(RBC) |
6
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| 重原子数目 |
35
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| 分子复杂度/Complexity |
895
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| 定义原子立体中心数目 |
1
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| SMILES |
O=C1C2C=C(C=CC=2C=CC2N=CC(C3C=NN(C)C=3)=CC1=2)NS(=O)(=O)N(C)C[C@H]1OCCOC1
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| InChi Key |
JGEBLDKNWBUGRZ-HXUWFJFHSA-N
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| InChi Code |
InChI=1S/C24H25N5O5S/c1-28-13-18(12-26-28)17-9-22-23(25-11-17)6-4-16-3-5-19(10-21(16)24(22)30)27-35(31,32)29(2)14-20-15-33-7-8-34-20/h3-6,9-13,20,27H,7-8,14-15H2,1-2H3/t20-/m1/s1
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| 化学名 |
14-[[[(2R)-1,4-dioxan-2-yl]methyl-methylsulfamoyl]amino]-5-(1-methylpyrazol-4-yl)-2-oxo-7-azatricyclo[9.4.0.03,8]pentadeca-1(11),3(8),4,6,9,12,14-heptaene
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| 别名 |
MK 2461; MK-2461; MK2461
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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 (5.04 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 (5.04 mM) (饱和度未知) 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), 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。 View More
配方 3 中的溶解度: 1% DMSO+30% polyethylene glycol+1% Tween 80, pH 4: 15mg/mL 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 | 2.0180 mL | 10.0898 mL | 20.1796 mL | |
| 5 mM | 0.4036 mL | 2.0180 mL | 4.0359 mL | |
| 10 mM | 0.2018 mL | 1.0090 mL | 2.0180 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 |
| NCT00496353 | Completed | Drug: MK2461 | Neoplasm | Merck Sharp & Dohme LLC | June 2007 | Phase 1 Phase 2 |
| NCT00518739 | Completed | Drug: MK2461 | Advanced Cancer | Merck Sharp & Dohme LLC | February 2007 | Phase 1 |
Differential effects of MK-2461 on phosphorylation of key tyrosine residues of c-Met. Cancer Res. 2010 Feb 15;70(4):1524-33. td> |
MK-2461 effectively inhibited phosphorylation of the activation loop of FGFR2 and PDGFR in cells. Cancer Res. 2010 Feb 15;70(4):1524-33. td> |
Orally administered MK-2461 inhibited c-Met phosphorylation and xenograft tumor growth in nude mice. Cancer Res. 2010 Feb 15;70(4):1524-33. td> |