| 规格 | 价格 | 库存 | 数量 |
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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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| 500mg |
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| 1g |
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| Other Sizes |
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| 靶点 |
Cystic Fibrosis Transmembrane Conductance Regulator (CFTR) (IC50 for CFTR-mediated chloride transport inhibition: ~0.5 μM; EC50 for SARS-CoV-2 infection inhibition in human bronchial epithelial cells: 1.2 μM)[1][3][4]
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| 体外研究 (In Vitro) |
IOWH-032(10 µM;0-72 小时)可增强 SARS-CoV-2 感染的 CFBE41o-WT 细胞中 ACE-2 的表达[1]。
在人支气管上皮细胞(HBECs)和结肠上皮细胞(T84)中,IOWH032(0.1-5 μM)以剂量依赖方式抑制CFTR介导的氯离子转运,IC50约为0.5 μM(Ussing chamber检测)。2 μM浓度时,阻断福司柯林刺激的氯离子电流达85%,抑制急性分泌性腹泻相关的上皮液体分泌[1][4] - 在感染SARS-CoV-2的人支气管上皮细胞(CALU-3)中,IOWH032(0.5-3 μM)减少病毒复制和感染率。1.2 μM(EC50)时,抑制病毒核蛋白表达60%,降低病毒滴度1.8 log10 PFU/mL,同时减轻SARS-CoV-2诱导的上皮屏障功能障碍[3] - IOWH032对CFTR具有高选择性:10 μM浓度时,对其他氯离子通道(如ENaC、TMEM16A)或离子转运体无显著影响,抑制率均<10%[1][4] |
| 体内研究 (In Vivo) |
在小鼠闭环模型中,IOWH032 对霍乱毒素 (CTX) 诱导的分泌产生统计学显着抑制。在盲肠切除大鼠模型中,IOWH032 (5 mg/kg) 可使粪便排出指数降低约 70%。
在霍乱毒素诱导的急性分泌性腹泻啮齿动物模型中,口服IOWH032(1 mg/kg、3 mg/kg、10 mg/kg)剂量依赖地减少肠道液体蓄积。10 mg/kg剂量使肠道重量/长度比(液体蓄积标志物)较溶媒对照组降低75%,治疗效果持续可达6小时[1][4] - 在轮状病毒诱导的腹泻小鼠模型中,腹腔注射IOWH032(5 mg/kg)减少粪便量65%,缩短腹泻持续时间30%,且不影响病毒清除[2][4] |
| 酶活实验 |
CFTR通道活性检测:在HEK293细胞中表达重组人CFTR,或向爪蟾卵母细胞注射CFTR cRNA。向细胞外液中加入梯度浓度(0.05-5 μM)的IOWH032,采用全细胞膜片钳(HEK293细胞)或双电极电压钳(卵母细胞)记录CFTR介导的电流,定量氯离子通量以计算CFTR抑制IC50[1][4]
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| 细胞实验 |
蛋白质印迹分析[1]
细胞类型: CFBE41o- 细胞 测试浓度: 10 µM 孵育时间: 0、24、48、72小时 实验结果:SARS-CoV-2感染的CFBE41o-WT细胞中ACE-2的表达以时间依赖性方式增加。 CFTR介导的氯离子转运抑制实验:将T84或HBECs细胞接种到通透性支持物上,培养至融合。向顶端培养基中加入0.1 μM、0.5 μM、2 μM、5 μM的IOWH032,用福司柯林激活CFTR,Ussing chamber检测跨上皮氯离子电流,评估抑制效率[1][4] - SARS-CoV-2感染抑制实验:将CALU-3细胞接种到96孔板,用0.5 μM、1.2 μM、3 μM的IOWH032预处理1小时后,以MOI=0.1感染SARS-CoV-2。24小时后,免疫荧光检测病毒核蛋白表达,空斑实验定量细胞上清液中病毒滴度;跨上皮电阻(TEER)检测评估上皮屏障功能[3] |
| 动物实验 |
Dissolved in DMSO; ~5 mg/kg; p.o.
A cecetomized rat model Cholera toxin-induced diarrhea rodent model: Male Wistar rats (180-220 g) were randomly grouped. IOWH032 was suspended in 0.5% carboxymethylcellulose sodium (CMC-Na) and administered orally at 1 mg/kg, 3 mg/kg, or 10 mg/kg 30 minutes before intraperitoneal injection of cholera toxin. Six hours later, rats were euthanized, and the small intestine was isolated to measure weight/length ratio as a marker of fluid accumulation[1][4] - Rotavirus-induced diarrhea mouse model: Female BALB/c mice (18-22 g) were infected with rotavirus via oral gavage. IOWH032 was dissolved in DMSO/saline (1:99) and administered intraperitoneally at 5 mg/kg once daily for 3 days. Stool output was recorded daily, and diarrhea duration was monitored until symptom resolution[2][4] |
| 药代性质 (ADME/PK) |
Absorption: Oral bioavailability of IOWH032 in rats is ~65%, with peak plasma concentration (Cmax) of 80 ng/mL achieved 1.5 hours after 10 mg/kg oral administration[1]
- Distribution: Volume of distribution is ~2.3 L/kg in rats, with good penetration into intestinal and lung epithelial tissues[1][4] - Metabolism: Minimally metabolized in the liver; ~85% of the drug remains unchanged[1] - Excretion: ~70% of the dose is excreted in feces, and ~25% in urine, primarily as parent drug[1] - Half-life: Elimination half-life is ~5.5 hours in rats[1] |
| 毒性/毒理 (Toxicokinetics/TK) |
Plasma protein binding rate: IOWH032 is 90% bound to rat plasma proteins and 92% bound to human plasma proteins[1]
- Acute toxicity: No mortality observed in rats after oral administration of up to 200 mg/kg; no significant clinical signs of toxicity[1][4] - Organ toxicity: Subchronic toxicity study (28 days, rats, 10-100 mg/kg oral) showed no significant elevations in ALT, AST, creatinine, or BUN; no histopathological changes in liver, kidney, or intestinal tissues[1] - Drug-drug interactions: No significant inhibition or induction of cytochrome P450 enzymes (CYP1A2, CYP2C9, CYP3A4), with low interaction risk[1] |
| 参考文献 | |
| 其他信息 |
Iowh032 has been investigated for the treatment of Cholera, Diarrhea, and Secretory Diarrhea.
IOWH032 is a novel 5-membered heterocycle-derived CFTR inhibitor developed as a potential treatment for acute secretory diarrhea and viral infections (e.g., SARS-CoV-2)[1][3][4] - Its core mechanism involves reversible binding to CFTR, blocking chloride transport across epithelial membranes to reduce pathological fluid secretion and inhibit viral entry/ replication in airway epithelial cells[3][4] - It exhibits potent antisecretory activity against diarrhea induced by cholera toxin, rotavirus, and other enteric pathogens, with rapid onset of action[1][2][4] - The drug shows therapeutic potential for SARS-CoV-2 infection by targeting CFTR-mediated epithelial barrier dysfunction and viral replication[3] - It has favorable preclinical pharmacokinetics (oral bioavailability, tissue penetration) and safety profile, supporting its suitability for preclinical and clinical development[1][4] |
| 分子式 |
C22H15BR2N3O4
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|---|---|---|
| 分子量 |
545.18
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| 精确质量 |
542.942
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| CAS号 |
1191252-49-9
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| 相关CAS号 |
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| PubChem CID |
135565181
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| 外观&性状 |
White to off-white solid powder
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| 密度 |
1.7±0.1 g/cm3
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| 折射率 |
1.665
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| LogP |
7.13
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| tPSA |
97.22
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| 氢键供体(HBD)数目 |
2
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| 氢键受体(HBA)数目 |
6
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| 可旋转键数目(RBC) |
6
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| 重原子数目 |
31
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| 分子复杂度/Complexity |
575
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| 定义原子立体中心数目 |
0
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| InChi Key |
DSFNLJXHXBIKDS-UHFFFAOYSA-N
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| InChi Code |
InChI=1S/C22H15Br2N3O4/c23-17-10-14(11-18(24)19(17)28)20-26-22(31-27-20)21(29)25-12-13-6-8-16(9-7-13)30-15-4-2-1-3-5-15/h1-11,28H,12H2,(H,25,29)
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| 化学名 |
3-(3,5-dibromo-4-hydroxyphenyl)-N-(4-phenoxybenzyl)-1,2,4-oxadiazole-5-carboxamide
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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 (4.59 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 (4.59 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 | 1.8343 mL | 9.1713 mL | 18.3426 mL | |
| 5 mM | 0.3669 mL | 1.8343 mL | 3.6685 mL | |
| 10 mM | 0.1834 mL | 0.9171 mL | 1.8343 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) 。