R-IMPP
(Synonyms: PF-00932239) 目录号 : GC32456
A cell-permeable inhibitor of PCSK9 secretion
Cas No.:2133832-83-2
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
(R)-IMPP is a cell-permeable inhibitor of the secretion of proprotein convertase subtilisin/kexin type 9 (PCSK9; IC50 = 4.8 ?M).1 It promotes the uptake of LDL cholesterol in hepatoma cells by increasing LDL receptor levels.1 (R)-IMPP apparently impairs PCSK9 secretion by causing transcript-dependent inhibition of PCSK9 translation.1
1.Petersen, D.N., Hawkins, J., Ruangsiriluk, W., et al.A small-molecule anti-secretagogue of PCSK9 targets the 80S ribosome to inhibit PCSK9 protein translationCell. Chem. Biol.231-10(2016)
| Cas No. | 2133832-83-2 | SDF | |
| 别名 | PF-00932239 | ||
| Canonical SMILES | O=C(N(C1=NC=CC2=C1C=CC=C2)[C@H]3CNCCC3)CCC4=CC=C(OC)C=C4 | ||
| 分子式 | C24H27N3O2 | 分子量 | 389.49 |
| 溶解度 | DMSO : ≥ 41 mg/mL (105.27 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 | 2.5675 mL | 12.8373 mL | 25.6746 mL |
| 5 mM | 0.5135 mL | 2.5675 mL | 5.1349 mL |
| 10 mM | 0.2567 mL | 1.2837 mL | 2.5675 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。
A Small-Molecule Anti-secretagogue of PCSK9 Targets the 80S Ribosome to Inhibit PCSK9 Protein Translation
Cell Chem Biol 2016 Nov 17;23(11):1362-1371.PMID:27746128DOI:10.1016/j.chembiol.2016.08.016.
Proprotein convertase subtilisin/kexin type 9 (PCSK9) is a secreted protein that downregulates low-density lipoprotein (LDL) receptor (LDL-R) levels on the surface of hepatocytes, resulting in decreased clearance of LDL-cholesterol (LDL-C). Phenotypic screening of a small-molecule compound collection was used to identify an inhibitor of PCSK9 secretion, (R)-N-(isoquinolin-1-yl)-3-(4-methoxyphenyl)-N-(piperidin-3-yl)propanamide (R-IMPP), which was shown to stimulate uptake of LDL-C in hepatoma cells by increasing LDL-R levels, without altering levels of secreted transferrin. Systematic investigation of the mode of action revealed that R-IMPP did not decrease PCSK9 transcription or increase PCSK9 degradation, but instead caused transcript-dependent inhibition of PCSK9 translation. In support of this surprising mechanism of action, we found that R-IMPP was able to selectively bind to human, but not E. coli, ribosomes. This study opens a new avenue for the development of drugs that modulate the activity of target proteins by mechanisms involving inhibition of eukaryotic translation.
Rewiring Lipid Metabolism by Targeting PCSK9 and HMGCR to Treat Liver Cancer
Cancers (Basel) 2022 Dec 20;15(1):3.PMID:36612001DOI:10.3390/cancers15010003.
Alterations in lipid handling are an important hallmark in cancer. Our aim here is to target key metabolic enzymes to reshape the oncogenic lipid metabolism triggering irreversible cell breakdown. We targeted the key metabolic player proprotein convertase subtilisin/kexin type 9 (PCSK9) using a pharmacological inhibitor (R-IMPP) alone or in combination with 3-hydroxy 3-methylglutaryl-Coenzyme A reductase (HMGCR) inhibitor, simvastatin. We assessed the effect of these treatments using 3 hepatoma cell lines, Huh6, Huh7 and HepG2 and a tumor xenograft in chicken choriorallantoic membrane (CAM) model. PCSK9 deficiency led to dose-dependent inhibition of cell proliferation in all cell lines and a decrease in cell migration. Co-treatment with simvastatin presented synergetic anti-proliferative effects. At the metabolic level, mitochondrial respiration assays as well as the assessment of glucose and glutamine consumption showed higher metabolic adaptability and surge in the absence of PCSK9. Enhanced lipid uptake and biogenesis led to excessive accumulation of intracellular lipid droplets as revealed by electron microscopy and metabolic tracing. Using xenograft experiments in CAM model, we further demonstrated the effect of anti-PCSK9 treatment in reducing tumor aggressiveness. Targeting PCSK9 alone or in combination with statins deserves to be considered as a new therapeutic option in liver cancer clinical applications.