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PF-543 Citrate

SphK1抑制剂，PF-543 Citrate是新颖的可渗透细胞的SPHK1抑制剂，Ki值为4.3 nM。对SPHK1的选择性是SPHK2的100倍以上。

目录号: PC14791 纯度: ≥98%

CAS No. :1415562-83-2

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中文名称	PF-543 Citrate
中文别名	(2R)-1-[[4-[[3-甲基-5-[(苯磺酰基)甲基]苯氧基]甲基]苯基]甲基]-2-吡咯烷甲醇柠檬酸盐
英文名称	PF-543 Citrate
英文别名	Pf-543 (citrate);[(2R)-1-[[4-[[3-(benzenesulfonylmethyl)-5-methylphenoxy]methyl]phenyl]methyl]pyrrolidin-2-yl]methanol,2-hydroxypropane-1,2,3-tricarboxylic acid;PF543 Citrate;PF-543 Citrate
Cas No.	1415562-83-2
分子式	C₃₃NO₁₁SH₃₉
分子量	657.73
包装储存	4°C, sealed storage, away from moisture *In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

生物活性

PF-543 Citrate (Sphingosine Kinase 1 Inhibitor II Citrate) is a potent, selective, reversible and sphingosine-competitive SPHK1 inhibitor with an IC₅₀ of 2 nM and a K_i of 3.6 nM. PF-543 Citrate is >100-fold selectivity for SPHK1 over SPHK2. PF-543 Citrate is an effective potent inhibitor of sphingosine 1-phosphate (S1P) formation in whole blood with an IC₅₀ of 26.7 nM. PF-543 Citrate induces apoptosis, necrosis, and autophagy.

性状

Solid

IC50 & Target[1][2]

IC50: 2 nM (SPHK1); 26.7 nM (Sphingosine 1-phosphate (S1P))
Ki: 3.6 nM (SPHK1)

体外研究(In Vitro)

PF-543 (10-1000 nM; 24?hours; PASM cells) treatment abolishes SK1 expression at nM concentrations.
PF-543 (0.1-10 μM; 24 hours; PASM cells) treatment induces caspase-3/7 activity.
PF-543 inhibits C₁₇-S1P formation in 1483 cells with an IC₅₀ of 1.0 nM.
SphK1 inhibition by PF-543 causes a dose-dependent depletion of the intracellular level of S1P with EC₅₀ concentration of 8.4 nM and a concomitant elevation of the intracellular level of sphingosine in 1483 cells. The level of endogenous S1P in 1483 cells after a 1 h treatment with 200 nM PF-543 is decreased 10-fold, producing a proportional increase in the level of sphingosine.

Medlife has not independently confirmed the accuracy of these methods. They are for reference only.

Western Blot Analysis

Cell Line:	Human pulmonary arterial smooth muscle (PASM) cells
Concentration:	10 nM, 100 nM, 1000 nM
Incubation Time:	24 ?hours
Result:	Abolished SK1 expression at nM concentrations.

Apoptosis Analysis

Cell Line:	Human pulmonary arterial smooth muscle (PASM) cells
Concentration:	0.1 μM, 1 μM, 10 μM
Incubation Time:	24 ?hours
Result:	Induced caspase-3/7 activity in cultured human pulmonary smooth muscle cells.

体内研究(In Vivo)

PF-543 (1 mg/kg; intraperitoneal injection; every second day; for 21 days; female C57BL/6 J mice) treatment has no effect on vascular remodelling but reduces right ventricular hypertrophy. The protection involves a reduction in the expression of p53 and an increase in the expression of anti-oxidant nuclear factor Nrf-2.
Mice are initially dosed (ip) with 10 mg/kg or 30 mg/kg of PF-543 for 24 h and the T_1/2 is 1.2 h in blood samples. Administration of 10 mg/kg PF-543 for 24 h to mice induces a decrease in SK1 expression in pulmonary vessels.

Medlife has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Model:	Female C57BL/6 J mice (7-12 week-old) with hypoxic-induced pulmonary arterial hypertension
Dosage:	1 mg/kg
Administration:	Intraperitoneal injection; every second day; for 21 days
Result:	Reduced right ventricular hypertrophy. The protection involves a reduction in the expression of p53 (that promotes cardiomyocyte death) and an increase in the expression of anti-oxidant nuclear factor Nrf-2.

运输条件

Room temperature or refrigerated transportation.

储存方式

4°C, sealed storage, away from moisture

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

参考文献

[1]. Schnute ME, et al. Modulation of cellular S1P levels with a novel, potent and specific inhibitor of sphingosine kinase-1. Biochem J. 2012 May 15;444(1):79-88. [Information]

[2]. MacRitchie N, et al. Effect of the sphingosine kinase 1 selective inhibitor, PF-543 on arterial and cardiac remodelling in a hypoxic model of pulmonary arterial hypertension. Cell Signal. 2016 Aug;28(8):946-55. [Information]

[3]. Hamada M, et al. Induction of autophagy by sphingosine kinase 1 inhibitor PF-543 in head and neck squamous cell carcinoma cells. Cell Death Discov. 2017 Aug 14;3:17047. [Information]

溶解度数据

体外研究:

DMSO : ≥ 100 mg/mL (152.04 mM)

H₂O : 50 mg/mL (76.02 mM; Need ultrasonic)

* "≥" means soluble, but saturation unknown.

配制储备溶液

浓度溶剂体积质量	1 mg	5 mg	10 mg

1 mM	1.5204 mL	7.6019 mL	15.2038 mL
5 mM	0.3041 mL	1.5204 mL	3.0408 mL
10 mM	0.1520 mL	0.7602 mL	1.5204 mL

产品不同，其溶解度不同。建议根据产品选择合适的溶剂配制储备溶液；配成溶液后，建议分装保存，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, 6 months; -20°C, 1 month (sealed storage, away from moisture)。-80°C 储存时，建议在 6 个月内使用，-20°C 储存时，建议在 1 个月内使用。

体内研究:

建议根据您的实验动物和给药方式选择适当的溶解方案。以下溶解方案都建议先按照 体外研究 方式配制澄清的储备液，再依次添加助溶剂：

——为保证实验结果的可靠性，澄清的储备液可以根据储存条件，适当保存；体内实验的工作液，建议您现用现配，当天使用；以下溶剂前显示的百
分比是指该溶剂在您配制终溶液中的体积占比；如在配制过程中出现沉淀、析出现象，可以通过加热和/或超声的方式助溶

1.

建议依照次序添加每种溶剂： PBS
Solubility: 100 mg/mL (152.04 mM); Clear solution; Need ultrasonic
2.

建议依照次序添加每种溶剂： 10% DMSO 40% PEG300 5% Tween-80 45% saline
Solubility: ≥ 2.5 mg/mL (3.80 mM); Clear solution

此方案可获得 ≥ 2.5 mg/mL (3.80 mM，饱和度未知) 的澄清溶液。
以 1 mL 工作液为例，取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中，混合均匀；向上述体系中加入50 μL Tween-80，混合均匀；然后继续加入 450 μL生理盐水定容至 1 mL。
将 0.9 g 氯化钠，完全溶解于 100 mL ddH?O 中，得到澄清透明的生理盐水溶液
3.

建议依照次序添加每种溶剂： 10% DMSO 90% (20% SBE-β-CD in saline)
Solubility: ≥ 2.5 mg/mL (3.80 mM); Clear solution

此方案可获得 ≥ 2.5 mg/mL (3.80 mM，饱和度未知) 的澄清溶液。
以 1 mL 工作液为例，取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 900 μL 20% 的 SBE-β-CD 生理盐水水溶液中，混合均匀。
将 2 g 磺丁基醚 β-环糊精加入 5 mL 生理盐水中，再用生理盐水定容至 10 mL，完全溶解，澄清透明
4.

建议依照次序添加每种溶剂： 10% DMSO 90% corn oil
Solubility: ≥ 2.5 mg/mL (3.80 mM); Clear solution

此方案可获得 ≥ 2.5 mg/mL (3.80 mM，饱和度未知) 的澄清溶液，此方案不适用于实验周期在半个月以上的实验。
以 1 mL 工作液为例，取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 900 μL玉米油中，混合均匀。

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产品使用指南

Data Sheet

1：一般建议：溶解度为Medlife测试数据，可能与文献描述存在差异。这是由于生产工艺和批次不同产生的正常现象。为了使其更好的溶解，请用37℃加热试管并在超声波水浴中震动片刻。不同批次产品溶解度各有差异，仅做参考，具体以实验方案为准。

2：储存条件：粉末-20°C一般情况可以保存3年，溶于溶剂-80°C一般情况可以保存1年。不同产品及不同批次产品可能存在差异，请细致阅读产品信息，并辅助参考相关文献描述。

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