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受注:045-509-1970 |
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Synonyms | N/A | Storage (From the date of receipt) |
3 years -20°C powder 1 years -80°C in solvent |
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| 化学式 | C27H32ClNO4S |
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| 分子量 | 502.07 | CAS No. | 1706522-79-3 | ||||||||||||
| Solubility (25°C)* | 体外 | DMSO | 100 mg/mL (199.17 mM) | ||||||||||||
| Ethanol | 100 mg/mL (199.17 mM) | ||||||||||||||
| Water | Insoluble | ||||||||||||||
| 体内 (毎回新しく調製した物を用意してください) |
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* <1 mg/ml means slightly soluble or insoluble. * Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations. |
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| 製品説明 | PF-543 hydrochloride, a novel sphingosine-competitive inhibitor of SphK1, inhibits SphK1 with IC50 and Ki of 2.0 nM and 3.6 nM, exhibits >100-fold selectivity over the SphK2 isoform. PF-543 hydrochloride induces apoptosis, necrosis, and autophagy. |
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| in vitro | PF543 is a cell-permeable hydroxyl methylpyrrolidine compound that inhibits SphK-1/SphK1-catalyzed sphingosine phosphorylation in a reversible and sphingosine-competitive manner, exhibiting no affinity toward S1P receptors and much reduced inhibitory activity against Sphk2 (6.8% inhibition at 10 μM) or 46 other lipid and portein kinases (IC50 >10 μM). In the SphK1-overexpression 1483 head and neck carcinoma cells, this compound decreases the level of endogenous S1P 10-fold with a proportional increase in the level of sphingosine. It binds SphK1 reversibly (k off t1/2=8.5 min) and with high affinity and the binding constant (Kd) is 5 nM. This chemical had no effect on the proliferation and survival of 1483, A549, LN229, Jurkat, U937 and MCF-7 cells, despite a dramatic change in the cellular S1P/sphingosine ratio. It is effective as a potent inhibitor of S1P formation in whole blood, indicating that the SphK1 isoform of sphingosine kinase is the major source of S1P in human blood. [1] |
| in vivo | PF-543 hydrochloride, a potent sphingosine kinase 1 inhibitor, reduced dysfunctional hypertrophy, associated with protection against cardiomyocyte apoptosis. |
| 特徴 | The most potent inhibitor of SphK1 described to date. |
| キナーゼアッセイ | FITC-S1P quantification/Caliper assay | |
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| A 384-well format of the SphK enzyme assay based on separation of FITC-S1P from unreacted FITC-sphingosine substrate using a microfluidic capillary electrophoresis mobility-shift system is developed. Briefly, 3 nM SphK1–His6 is incubated with 1 μM FITC-sphingosine, 20 μM ATP and 10 μM this compound (a final concentration of DMSO of 2 %) in a buffer containing 100 mM Hepes (pH 7.4), 1 mM MgCl2,0.01% Triton X-100, 10% glycerol, 100 μM sodium orthovanadate and 1 mM DTT for 1 h in a 384-well Matrical MP-101-1-PP plate. Reaction mixtures (10 μL) are quenched by the addition of 20 μL of 30 mM EDTA and 0.15% Coating Reagent-3 in 100 mM Hepes, and a small aliquot of each reaction (a few nanolitres) is analysed in the Caliper LabChip 3000 instrument under -1.5 psi (psi=6.9 kPa) pressure, a downstream voltage of -1900 V and a sip time of 0.2 s. Phosphorylated fluorescent product and unphosphorylated fluorescent substrate appeared as distinctive peaks and are quantified using the Caliper data. | ||
| 細胞アッセイ | 細胞株 | 1483, A549, LN229, Jurkat, U937, MCF-7 |
| 濃度 | ~1 μM | |
| 反応時間 | 7 days | |
| 実験の流れ | CellTiter-Glo Assay |
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| 動物実験 | 動物モデル | C57BL/6 mice |
| 投薬量 | 1 mg/kg | |
| 投与方法 | i.p. | |
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Data from [Data independently produced by , , Int J Biochem Cell Biol, 2017, 90:17-28]

Data from [Data independently produced by , , Biochem Biophys Res Commun, 2016, 470(3):728-34.]
| SPHK1 enhances olaparib resistance in ovarian cancer through the NFκB/NRF2/ferroptosis pathway [ Cell Death Discov, 2025, 11(1):29] | PubMed: 39875359 |
| Elevated Sphingosine Levels Suppress Profibrotic TGF-β Signaling via the PKC/miR-21/SMAD7 Axis in Sphingosine Kinase 2-Deficient Renal Fibroblasts and Unilateral Ureteral Obstruction-Induced Kidney Fibrosis [ FASEB J, 2025, 39(12):e70768] | PubMed: 40558859 |
| Elevated Sphingosine Levels Suppress Profibrotic TGF-β Signaling via the PKC/miR-21/SMAD7 Axis in Sphingosine Kinase 2-Deficient Renal Fibroblasts and Unilateral Ureteral Obstruction-Induced Kidney Fibrosis [ FASEB J, 2025, 39(12):e70768] | PubMed: 40558859 |
| Molecular subtyping of renal clear cell carcinoma based on prognostic RASSF family genes and validation of C1QL1 as a key prognostic marker [ Sci Rep, 2025, 15(1):9786] | PubMed: 40118977 |
| Targeting the SphK1/S1P/PFKFB3 axis suppresses hepatocellular carcinoma progression by disrupting glycolytic energy supply that drives tumor angiogenesis [ J Transl Med, 2024, 22(1):43] | PubMed: 38200582 |
| Cannabinoid-Induced Immunogenic Cell Death of Colorectal Cancer Cells Through De Novo Synthesis of Ceramide Is Partially Mediated by CB2 Receptor [ Cancers (Basel), 2024, 16(23)3973] | PubMed: 39682160 |
| Induction of Inflammation Disrupts the Negative Interplay between STING and S1P Axis That Is Observed during Physiological Conditions in the Lung [ Int J Mol Sci, 2023, 24(9)8303] | PubMed: 37176007 |
| Comprehensive metabolomics expands precision medicine for triple-negative breast cancer [ Cell Res, 2022, 10.1038/s41422-022-00614-0] | PubMed: 35105939 |
| Sphingosine kinase 1 promotes tumor immune evasion by regulating the MTA3-PD-L1 axis [ Cell Mol Immunol, 2022, 19(10):1153-1167] | PubMed: 36050478 |
| Sphingosine kinase 1 promotes tumor immune evasion by regulating the MTA3-PD-L1 axis [ Cell Mol Immunol, 2022, 19(10):1153-1167] | PubMed: 36050478 |
長期の保管のために-20°Cの下で製品を保ってください。
人間や獣医の診断であるか治療的な使用のためにでない。
各々の製品のための特定の保管と取扱い情報は、製品データシートの上で示されます。大部分のSelleck製品は、推薦された状況の下で安定です。製品は、推薦された保管温度と異なる温度で、時々出荷されます。長期の保管のために必要とされてそれと異なる温度で、多くの製品は、短期もので安定です。品質を維持するが、夜通しの積荷のために最も経済的な貯蔵状況を用いてあなたの送料を保存する状況の下に、製品が出荷されることを、我々は確実とします。製品の受領と同時に、製品データシートの上で貯蔵推薦に従ってください。