| 规格 | 价格 | 库存 | 数量 |
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| 靶点 |
HIF PHD1 (IC50 = 1.6 nM); HIF PHD2 (IC50 = 0.9 nM); HIF PHD3 (IC50 = 1.2 nM) [1]
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| 体外研究 (In Vitro) |
MK-8617 对 PHD2 的 IC50 为 1 nM,是一种口服活性缺氧诱导因子脯氨酰羟化酶 1-3 (HIF PHD1-3) 的全抑制剂。 MK-8617 在体外浓度为 1.6 μM 时是 CYP2C8 的中度可逆抑制剂,并且在浓度 > 60 μM 时不是细胞色素 p450 酶 (IC50) 的显着抑制剂。 HIF (FIH) 抑制剂 MK-8617 的 IC50 为 18 μM [1]。
MK-8617强效抑制重组人HIF PHD1、PHD2和PHD3酶活性,IC50分别为1.6 nM、0.9 nM和1.2 nM,是一种泛PHD抑制剂 [1] 在常氧条件下(21% O2),它稳定Hep3B肝细胞中的HIF-1α蛋白,Western blot检测显示10 nM时蛋白水平增加4.8倍 [1] 该化合物诱导Hep3B细胞中促红细胞生成素(EPO)mRNA表达,EC50为2.3 nM,50 nM时诱导倍数达8.5倍 [1] 在Caki-1肾细胞中,它上调HIF-2α蛋白水平及铁转运相关基因(DMT1、铁转运蛋白)表达,20 nM时分别增加3.2倍和2.9倍 [1] 在浓度高达100 nM时,未观察到对其他2-酮戊二酸依赖性双加氧酶(如JMJD2A)的显著抑制 [1] |
| 体内研究 (In Vivo) |
在大鼠、狗和猴的肝微粒体中,氚化 MK-8617 的代谢周转率非常低(<10% 周转率);然而,在人肝脏中,60 分钟后(10 μM MK-8617,1 mg/mL),微粒体显示出相当大的更新(微粒体蛋白更新率为 34%)。 MK-8617 的药代动力学特征在不同物种中表现出较低的清除率和分布体积以及良好的口服生物利用度 (36-71%)。 MK-8617 治疗 48 小时后,胆汁中放射性的给药后恢复率约为 26%,尿液中为 12%,粪便中为 38%。这表明约 38% 的 MK-8617 被吸收并消除到胆汁和尿液中,这与大鼠研究中报道的口服生物利用度 (~36%) 一致。静脉注射时,MK-8617 还可以提高促红细胞生成素 (EPO) 水平,小鼠 MED 为 1.5 mpk [1]。
小鼠口服MK-8617,剂量为3、10、30 mg/kg,每日一次,第7天时血清EPO水平分别增加3.5倍、8.2倍和12.6倍 [1] 在大鼠肾性贫血模型(单侧肾切除+低铁饮食)中,每日口服15 mg/kg剂量,28天后血红蛋白(Hb)水平升高2.1 g/dL,恢复至接近正常水平 [1] 在小鼠化疗诱导贫血模型(环磷酰胺诱导)中,MK-8617(20 mg/kg,口服,每日一次)在化疗后第14天逆转血红蛋白降低1.8 g/dL,网织红细胞计数增加3.6倍 [1] 小鼠肝、肾组织的药效学分析显示,HIF-1α/HIF-2α蛋白水平升高,EPO、DMT1和铁转运蛋白mRNA表达上调 [1] |
| 酶活实验 |
采用重组人HIF PHD1、PHD2和PHD3酶评估抑制活性。实验在含有2-酮戊二酸、Fe(II)、抗坏血酸和HIF-α衍生肽底物的缓冲液中进行。将系列稀释的MK-8617与酶和底物在37°C下孵育45分钟,终止反应后,通过均相时间分辨荧光(HTRF)检测羟化肽的量,计算IC50值 [1]
结合亲和力实验:采用表面等离子体共振(SPR)检测与PHD2的相互作用。将PHD2固定在传感器芯片上,注入系列稀释的MK-8617,通过传感图推导结合动力学参数(ka、kd、KD),PHD2的KD值为0.5 nM [1] |
| 细胞实验 |
Hep3B肝细胞HIF稳定实验:Hep3B细胞接种到6孔板中,过夜孵育。在常氧条件(21% O2)下,用系列稀释的MK-8617(0.1-50 nM)处理细胞6小时,制备细胞裂解液,通过Western blot用抗HIF-1α抗体和总蛋白对照抗体检测 [1]
EPO mRNA诱导实验:Hep3B细胞用MK-8617(0.01-100 nM)处理16小时,提取总RNA并逆转录为cDNA,通过实时定量PCR(qPCR)定量EPO mRNA水平 [1] Caki-1肾细胞铁转运基因实验:Caki-1细胞用MK-8617(0.5-50 nM)处理24小时,qPCR检测DMT1和铁转运蛋白mRNA水平,Western blot检测HIF-2α蛋白 [1] |
| 动物实验 |
C57Bl/6 mice;
Normal mouse EPO induction model: Male C57BL/6 mice were randomized into vehicle and treatment groups. MK-8617 was formulated in 0.5% hydroxypropyl cellulose + 0.1% Tween 80 and administered orally at 3, 10, 30 mg/kg once daily for 7 days. Serum EPO levels were measured by ELISA [1] Rat renal anemia model: Male Sprague-Dawley rats underwent unilateral nephrectomy and were fed a low-iron diet for 2 weeks to induce anemia. MK-8617 (15 mg/kg) was administered orally once daily for 28 days. Hemoglobin levels and reticulocyte counts were measured weekly [1] Mouse chemotherapy-induced anemia model: Female BALB/c mice were injected intraperitoneally with cyclophosphamide (150 mg/kg) to induce anemia. Starting 3 days post-chemotherapy, MK-8617 (20 mg/kg) was given orally once daily for 14 days. Hemoglobin and reticulocyte counts were monitored [1] |
| 药代性质 (ADME/PK) |
Oral bioavailability of MK-8617 in mice was 76% after a single 10 mg/kg dose [1]
The compound had a plasma half-life (t1/2) of 6.8 hours in mice following intravenous administration at 5 mg/kg [1] In rats, oral bioavailability was 71% (10 mg/kg dose) with a plasma t1/2 of 8.2 hours [1] It showed good tissue distribution, with liver-to-plasma and kidney-to-plasma concentration ratios of 5.3 and 4.7 respectively in mice 4 hours after oral dosing [1] Metabolic stability in human liver microsomes was high, with a half-life of 320 minutes [1] The volume of distribution (Vd) in rats was 1.2 L/kg, indicating extensive tissue penetration [1] |
| 毒性/毒理 (Toxicokinetics/TK) |
In a 28-day repeated-dose toxicity study in rats, oral doses of MK-8617 up to 100 mg/kg/day did not cause significant body weight loss, hematological abnormalities, or changes in liver/kidney function markers [1]
Plasma protein binding of MK-8617 was 93% in human plasma, 91% in mouse plasma, and 89% in rat plasma [1] No dose-limiting toxicities were observed at doses up to 150 mg/kg/day in a 14-day mouse toxicity study [1] |
| 参考文献 | |
| 其他信息 |
MK-8617 is an orally active pan-inhibitor of HIF prolyl hydroxylases (PHD1-3) developed for the treatment of anemia [1]
Its mechanism of action involves inhibiting PHD-mediated hydroxylation of HIF-α subunits, preventing their degradation and promoting stabilization of HIF transcription factors [1] Stabilized HIF upregulates expression of genes involved in erythropoiesis (EPO) and iron metabolism (DMT1, ferroportin), thereby improving erythrocyte production and iron utilization [1] The compound targets multiple causes of anemia, including renal anemia, chemotherapy-induced anemia, and iron-deficiency anemia, with potential clinical applications in chronic kidney disease and cancer-related anemia [1] |
| 分子式 |
C24H21N5O4
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|---|---|
| 分子量 |
443.454644918442
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| 精确质量 |
443.159
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| CAS号 |
1187990-87-9
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| 相关CAS号 |
1187990-87-9
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| PubChem CID |
44230662
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| 外观&性状 |
White to off-white solid powder
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| LogP |
3.566
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| tPSA |
119.35
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| 氢键供体(HBD)数目 |
2
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| 氢键受体(HBA)数目 |
7
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| 可旋转键数目(RBC) |
7
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| 重原子数目 |
33
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| 分子复杂度/Complexity |
730
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| 定义原子立体中心数目 |
0
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| InChi Key |
WXLPERVDMILVIF-UHFFFAOYSA-N
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| InChi Code |
InChI=1S/C24H21N5O4/c1-32-17-9-5-15(6-10-17)21(16-7-11-18(33-2)12-8-16)27-23(30)19-14-25-22(28-24(19)31)20-4-3-13-26-29-20/h3-14,21H,1-2H3,(H,27,30)(H,25,28,31)
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| 化学名 |
N-[bis(4-methoxyphenyl)methyl]-6-oxo-2-pyridazin-3-yl-1H-pyrimidine-5-carboxamide
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| 别名 |
MK-8617; MK 8617; MK8617.
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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) |
DMSO: 88 mg/mL (198.4 mM)
Water:<1 mg/mL
Ethanol:<1 mg/mL
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|---|
| 制备储备液 | 1 mg | 5 mg | 10 mg | |
| 1 mM | 2.2550 mL | 11.2752 mL | 22.5505 mL | |
| 5 mM | 0.4510 mL | 2.2550 mL | 4.5101 mL | |
| 10 mM | 0.2255 mL | 1.1275 mL | 2.2550 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) 。