立体选择性抑制高和低亲和率有机阴离子载体
Lukas Gebauer1, Ole Jensen1, Muhammad Rafehi1
1Institute of Clinical Pharmacology, University Medical Center Göttingen, D-37075 Göttingen, Germany.
Molecular pharmaceutics
|November 14, 2023
概括
药物反体对有机阴离子载体 (OCT) 和单胺载体 (MAT) 具有不同的选择性. 虽然OCT3表现出高的立体选择性,但大多数性药物表现出轻微的抑制,这表明临床药物相互作用风险有限.
科学领域:
- 药理学 药理学是指药理学的学科.
- 生物化学 生化学
- 药物新陈代谢 药物新陈代谢
背景情况:
- 许多奇拉性药物被用作种族混合物,因此需要了解它们与膜载体的立体选择性相互作用.
- 有机阴离子载体 (OCT) 和单胺载体 (MAT) 对于药物处置和疗效至关重要.
研究的目的:
- 在抑制OCTs (1,2,3) 和MATs (NET和SERT) 方面研究反反体的立体选择性.
- 评估观察到的立体选择性的潜在临床影响,特别是在药物相互作用方面.
主要方法:
- 使用35对反体对OCT1,OCT2,OCT3,NET和SERT进行抑制试验.
- 在不同的传送子类型中对立体选择性的比较.
- 在体外抑制数据与药物动力学分析的整合.
主要成果:
- 在OCT亚型中,立体选择性差异很大;OCT1显示出最小的选择性,而OCT2和OCT3显示出中度至高的立体选择性.
- 药理动力学活跃的反体通常是OCTs更强大的抑制剂.
- 高亲和度的MAT显示了抗抑郁药的立体选择性抑制,但通常不如OCT.
- 对OCT抑制的立体选择性似乎不依赖基质.
结论:
- 在抑制方面,OCT3表现出最高的立体选择性,其次是OCT2,而OCT1在很大程度上是非选择性的.
- 虽然一些药物表现出显著的立体选择性,但大多数性药物在体外OCT中表现出轻微的抑制,这可能转化为有限的临床药物相互作用风险.
- 像OCT2这样的运输体的立体选择性抑制需要考虑潜在的药物相互作用,如多克塞.
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