Effect of a Pluronic(®) P123 formulation on the nitric oxide-generating drug JS-K.
Effect of a Pluronic(®) P123 formulation on the nitric oxide-generating drug JS-K.
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DOI:
10.1007/s11095-014-1542-9
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发表时间:
2015-04
影响因子:
3.7
通讯作者:
Shami, Paul J.
中科院分区:
文献类型:
--
作者:
Kaur, Imit;Kosak, Ken M.;Terrazas, Moises;Herron, James N.;Kern, Steven E.;Boucher, Kenneth M.;Shami, Paul J.
关键词:
O2-(2,4-dinitrophenyl)1-[(4-ethoxycarbonyl)piperazin-1-yl]diazen-1-ium-1,2-diolate] or JS-K is a nitric oxide-producing prodrug of the arylated diazeniumdiolate class with promising anti-tumor activity. JS-K has challenging solubility and stability properties. We aimed to characterize and compare Pluronic® P123-formulated JS-K (P123/JS-K) with free JS-K. We determined micelle size, shape, and critical micelle concentration of Pluronic® P123. Efficacy was evaluated in vitro using HL-60 and U937 cells and in vivo in a xenog raft in NOD/SCID IL2Rγnull mice using HL-60 cells. We compared JS-K and P123/JS-K stability in different media. We also compared plasma protein binding of JS-K and P123/JS-K. We determined the binding and Stern Volmer constants, and thermodynamic parameters. Spherical P123/JS-K micelles were smaller than blank P123. P123/JS-K formulation was more stable in buffered saline, whole blood, plasma and RPMI media as compared to free JS-K. P123 affected the protein binding properties of JS-K. In vitro it was as efficacious as JS-K alone when tested in HL-60 and U937 cells and in vivo greater tumor regression was observed for P123/JS-K treated NOD/SCID IL2Rγnull mice when compared to free JS-K-treated NOD/SCID IL2Rγnull mice. Pluronic® P123 solubilizes, stabilizes and affects the protein binding characteristics of JS-K. P123/JS-K showed more in vivo anti-tumor activity than free JS-K.
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影响因子:
16.1
作者:
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通讯作者:
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影响因子:
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Leroux, JC
DOI:
10.1016/j.saa.2011.11.048
发表时间:
2012-02-15
影响因子:
4.4
作者:
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通讯作者:
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