BF738735
目录号 : GC32381
BF738735是一种磷脂酰肌醇4-激酶IIIβ(PI4KIIIβ)抑制剂，IC50为5.7nM。
Cas No.:1436383-95-7
Sample solution is provided at 25 µL, 10mM.
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Quality Control & SDS
- View current batch:
- Purity: >99.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
Kinase experiment: | The PI4K in vitro activity assay is performed. Briefly, recombinant PI4KIIIβ or PI4KIIIα and their substrate, phosphatidylinositol (PI)-phosphatidylserine (PS), are diluted in buffer containing Triton X-100. The reaction is started by addition of a mixture of ATP and 0.25 μCi of [γ-33P]ATP. After 75 to 90 min of incubation at 30°C, the reaction is terminated by addition of phosphoric acid. The incorporated radioactivity is measured by using a TopCount NXT microplate scintillation counter. Data are converted to the percent inhibition relative to controls[1]. |
Cell experiment: | Buffalo green monkey (BGM) kidney cells, HeLa R19 cells, and HeLa Rh cells are grown at 37°C, 5% CO2 in minimal essential medium (MEM) supplemented with 10% fetal bovine serum, penicillin, and streptomycin. The assays to determine the 50% effective concentration (EC50) and 50% cytotoxic concentration (CC50) of BF738735 are performed. Briefly, cells are infected with 100 CCID50 for 2 h, after which the virus is removed and serial dilutions of BF738735 (0.01, 0.033, 0.1, 0.33, 1, 3.33, 10, 33.33 and 100 μM) are added. For determination of the CC50, serial dilutions of BF738735 are added to the cells. Following 3 to 4 days of incubation, the medium is replaced with CellTiter 96 AQueous One solution reagent. Optical densities at 490 nm are corrected for background absorbance, which is determined from wells that lack cells. The resulting values for untreated cells are set to 100%[1]. |
Animal experiment: | Mice[2]BF738735 is used to study the bioavailability and antiviral effect in vivo. BF738735 is administrated in mice, 1 mg/kg intravenously or 5 mg/kg orally to treat coxsackievirus serotype B4 (CVB4) induced pancreatitis. |
References: [1]. van der Schaar HM, et al. A novel, broad-spectrum inhibitor of enterovirus replication that targets host cell factor phosphatidylinositol 4-kinase IIIβ. Antimicrob Agents Chemother. 2013 Oct;57(10):4971-81. | |
BF738735 is a phosphatidylinositol 4-kinase III beta (PI4KIIIβ) inhibitor with an IC50 of 5.7 nM.
BF738735 (Compound 1) strongly inhibits PI4KIIIβ activity in vitro, with an IC50 of 5.7 nM. BF738735 also impairs PI4KIIIα, but only at an ~300-fold-higher concentration (IC50 of 1.7 μM). In addition, the activity of BF738735 is analyzed on a set of 150 cellular kinases, including 13 lipid kinases at a concentration of 10 μM. For all kinases, the inhibition is less than 10%, indicating that BF738735 specifically inhibits PI4KIIIβ in vitro. BF738735 exhibits a broad spectrum of antiviral activity, as it inhibits all tested species of enteroviruses and rhinoviruses, with 50% effective concentrations ranging between 4 and 71 nM. BF738735 potently inhibits all viruses tested, with EC50s ranging between 4 and 71 nM. The cytotoxicity of BF738735, determined in parallel with the EC50 and using the same culture conditions for 3 to 4 days, is low, with CC50 values ranging from 11 to 65 μM, resulting in high selectivity indices. Low concentrations of BF738735 reduce the amount of luciferase to GuaHCl-treated levels, suggesting that the BF738735 blocks viral RNA replication. The EC50 of BF738735 in this assay is 77 nM, which is comparable to the inhibition observed in the multicycle assay for coxsackievirus serotype B3 (CVB3)[1].
BF738735 is well tolerated by specimens with good plasma levels of the antiviral in circulation and a complete inhibition with 25 mg/kg and some inhibition with 5 mg/kg dose is observed[2].
[1]. van der Schaar HM, et al. A novel, broad-spectrum inhibitor of enterovirus replication that targets host cell factor phosphatidylinositol 4-kinase IIIβ. Antimicrob Agents Chemother. 2013 Oct;57(10):4971-81. [2]. V Saarnio. Antiviral Molecules of Enteroviruses. 13.1.2017.
| Cas No. | 1436383-95-7 | SDF | |
| Canonical SMILES | OC1=CC=C(C2=C(C)N=C3C(NCC4=CC=CC(S(=O)(C)=O)=C4)=NC=CN32)C=C1F | ||
| 分子式 | C21H19FN4O3S | 分子量 | 426.46 |
| 溶解度 | DMSO : 125 mg/mL (293.11 mM) | 储存条件 | Store at -20°C |
| General tips | 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。 储备液的保存方式和期限：-80°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。 为了提高溶解度，请将管子加热至37℃，然后在超声波浴中震荡一段时间。 |
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| Shipping Condition | 评估样品解决方案：配备蓝冰进行发货。所有其他可用尺寸：配备RT，或根据请求配备蓝冰。 | ||
| 制备储备液 | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 2.3449 mL | 11.7244 mL | 23.4489 mL |
| 5 mM | 0.469 mL | 2.3449 mL | 4.6898 mL |
| 10 mM | 0.2345 mL | 1.1724 mL | 2.3449 mL |
| 第一步：请输入基本实验信息（考虑到实验过程中的损耗，建议多配一只动物的药量） | ||||||||||
| 给药剂量 | mg/kg |  |
动物平均体重 | g | |
每只动物给药体积 | ul | |
动物数量 | 只 |
| 第二步：请输入动物体内配方组成（配方适用于不溶于水的药物；不同批次药物配方比例不同，请联系GLPBIO为您提供正确的澄清溶液配方） | ||||||||||
| % DMSO % % Tween 80 % saline | ||||||||||
| 计算重置 | ||||||||||
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，
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 saline，混匀澄清。
1. 首先保证母液是澄清的；
2.
一定要按照顺序依次将溶剂加入，进行下一步操作之前必须保证上一步操作得到的是澄清的溶液，可采用涡旋、超声或水浴加热等物理方法助溶。
3. 以上所有助溶剂都可在 GlpBio 网站选购。
PI4KIII inhibitor enviroxime impedes the replication of the hepatitis C virus by inhibiting PI3 kinases
J Antimicrob Chemother 2018 Dec 1;73(12):3375-3384.PMID:30219827DOI:10.1093/jac/dky327
Objectives: Many positive-stranded RNA viruses, including HCV, drastically remodel intracellular membranes to generate specialized environments for RNA replication. Phosphatidylinositol 4-kinase III (PI4KIII)伪 plays an essential role in the formation of HCV replication complexes and has therefore been explored as a potential drug target. Here, we characterized the anti-HCV activity of the PI4KIII inhibitors enviroxime and BF738735 and elucidated their mechanism of action. Methods: Antiviral assays were performed using HCV subgenomic replicons and infectious HCV. Enviroxime- and BF738735-resistant HCV replicons were generated by long-term culture with increasing compound concentrations. Intracellular localization of phosphatidylinositol 4-phosphate (PI4P) lipids was analysed by confocal microscopy. Results: HCV subgenomic replicons resistant to either enviroxime or BF738735 proved cross-resistant and carried mutations in the NS3, NS4B and NS5A genes. Knockdown of PI4KIII尾 by small interfering RNA (siRNA) did not affect the replication of the HCV subgenomic replicon in this study. Furthermore, the compounds did not affect PI4P lipid levels at the replication complexes nor the phosphorylation status of NS5A, activities attributed to PI4KIII伪. Interestingly, the broad-spectrum phosphoinositide 3-kinase (PI3K) inhibitor LY294002 proved to be 10-fold less effective against the resistant replicons. In addition, enviroxime and BF738735 inhibited several PI3Ks in enzymatic assays. Conclusions: Contrary to assumptions, our data indicate that PI4KIII伪 and PI4KIII尾 are not the main targets for the anti-HCV activity of enviroxime and BF738735. Instead, we demonstrated that both molecules impede HCV replication at least partially by an inhibitory effect on PI3Ks. Moreover, HCV is able to bypass PI3K inhibition by acquiring mutations in its genome.