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.
Shami, Paul J.
中科院分区:
医学3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.

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O2-(2,4-二硝基苯基)1-[(4-乙氧基羰基)哌嗪-1-基]diazen-1-ium-1,2-diolate] 或 JS-K 是芳基化二氮烯鎓二醇类的产生一氧化氮的前药,具有良好的抗肿瘤活性。 JS-K 具有挑战性的溶解度和稳定性。我们的目的是对 Pluronic® P123 配方 JS-K (P123/JS-K) 与免费 JS-K 进行表征和比较。我们确定了 Pluronic® P123 的胶束尺寸、形状和临界胶束浓度。使用 HL-60 和 U937 细胞在体外评估功效,并使用 HL-60 细胞在 NOD/SCID IL2Rγnull 小鼠的异种移植物中评估体内功效。我们比较了 JS-K 和 P123/JS-K 在不同介质中的稳定性。我们还比较了 JS-K 和 P123/JS-K 的血浆蛋白结合。我们确定了结合常数、斯特恩沃尔默常数以及热力学参数。球形 P123/JS-K 胶束比空白 P123 小。与游离 JS-K 相比,P123/JS-K 制剂在缓冲盐水、全血、血浆和 RPMI 介质中更稳定。 P123 影响 JS-K 的蛋白质结合特性。在体外,当在 HL-60 和 U937 细胞中进行测试时,它与单独的 JS-K 一样有效,并且与游离 JS-K 处理的 NOD/SCID IL2Rγnull 小鼠相比,体内 P123/JS-K 处理的 NOD/SCID IL2Rγnull 小鼠观察到更大的肿瘤消退。 Pluronic® P123 可溶解、稳定并影响 JS-K 的蛋白质结合特性。 P123/JS-K 显示出比游离 JS-K 更强的体内抗肿瘤活性。
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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