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首页> 外文期刊>Applied Magnetic Resonance >Chaperoning the Immunosuppressant Mycophenolic Acid through the Gastrointestinal Tract: a Role for Copper
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Chaperoning the Immunosuppressant Mycophenolic Acid through the Gastrointestinal Tract: a Role for Copper

机译:陪伴通过胃肠道的免疫抑制剂麦考酚酸:铜的作用。

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摘要

Mycophenolic acid (MPA) is a frontline immunosuppressant that limits rejection of transplanted organs. Optimal use of this drug is hampered by gastrointestinal adverse events that are thought to be triggered during the absorption phase. These events have a negative impact on graft and patient survival. Previous work has suggested that similar gastrointestinal adverse events observed with non-steroidal antiinflammatory use can be limited by delivering the drug as a copper complex. We have recently shown that MPA is able to bind copper ions to form [Cu(MPA)(2)(H2O)(2)]. We report here that this complex is retained in a solvent that mimics the low pH, high salt environment of the upper gastrointestinal tract, suggesting that copper chelation may be a useful way to modulate and control MPA absorption. In an organic solvent, the complex can be modified using the physiologically relevant ligand imidazole to form [CuMPA(imid)(3)], however this complex is not retained in low pH conditions.
机译:麦考酚酸(MPA)是一线免疫抑制剂,可限制移植器官的排斥。胃肠道不良事件阻碍了这种药物的最佳使用,而胃肠道不良事件被认为是在吸收阶段触发的。这些事件对移植物和患者的生存有负面影响。先前的研究表明,非甾体类抗炎药的使用可观察到类似的胃肠道不良事件,这可以通过将药物以铜络合物的形式输送来限制。我们最近显示,MPA能够与铜离子结合形成[Cu(MPA)(2)(H2O)(2)]。我们在这里报告此复合物保留在模仿上消化道的低pH,高盐环境的溶剂中,这表明铜螯合可能是调节和控制MPA吸收的有用方法。在有机溶剂中,可以使用生理上相关的配体咪唑将络合物改性以形成[CuMPA(imid)(3)],但是该络合物不能在低pH条件下保留。

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