PF-543CAS号: 1415562-82-1分子式: C27H31NO4S分子量: 465.6描述纯度储存/保存方法别名可溶性/溶解性靶点In vitro(体外研究)In vivo(体内研究)
产品描述 | |
描述 |
PF-543 is a novel Sphingosine kinase 1 (SphK1, SK1) inhibitor with Ki of 3.6 nM. |
纯度 |
>98%
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储存/保存方法 |
Store at -20℃ for one year(Powder);Store at 2-4℃ for two weeks;Store at -20℃ for six months after dissolution.
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基本信息 | |
别名 |
PF543;PF 543;Sphingosine Kinase 1 Inhibitor II
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可溶性/溶解性 |
DMSO : 100 mg/mL (214.78 mM; Need ultrasonic)
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生物活性 | |
靶点 |
SphK1
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In vitro(体外研究) |
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, PF-543 decreases the level of endogenous S1P 10-fold with a proportional increase in the level of sphingosine. PF-543 binds SphK1 reversibly (k off t1/2=8.5 min) and with high affinity and the binding constant (Kd) is 5 nM. PF543 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. PF-543 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.
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In vivo(体内研究) |
Administration of the potent sphingosine kinase 1 inhibitor, PF-543 in a mouse hypoxic model of pulmonary hypertension has no effect on vascular remodelling but reduces right ventricular hypertrophy. Administration of 10 mg/kg PF-543 for 24 h to mice induces a decrease in SK1 expression in pulmonary vessels.
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分子结构图