通过肝脏有机离子运输多类的他类药物的比较吸收
Wilma Kiander1, Alli Sinokki2, Mikko Neuvonen3
1Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, FI-00014 Helsinki, Finland; Department of Clinical Pharmacology, Faculty of Medicine, University of Helsinki, FI-00014 Helsinki, Finland; Individualized Drug Therapy Research Program, Faculty of Medicine, University of Helsinki, FI-00014 Helsinki, Finland; Department of Clinical Pharmacology, HUS Diagnostic Center, Helsinki University Hospital, FI-00029 Helsinki, Finland.
这项研究以有机离子运输多 (OATPs) 1B1,1B3和2B1.1为特征. OATP1B1携带所有他类药物,其中疏水性他类药物表现出比水友性他类药物更高的亲和力,有助于理解药物相互作用.
科学领域:
- 药理学 药理学是指药理学的学科.
- 药物新陈代谢 药物新陈代谢
- 生物化学 生物化学
背景情况:
- 肝细胞通过有机离子运输多 (OATPs) 的吸收影响药物清除.
- 现有的文献显示,不同实验室的他类药物吸收数据是可变的.
- 对于对他类药物和OATP相互作用进行比较分析,需要一个标准化的实验设置.
研究的目的:
- 描述肝脏OATP介导的关键他类药物的运输.
- 为了比较OATP1B1,OATP1B3和OATP2B1载体之间的不同他类药物的亲和力.
- 为了解他类药物基因相互作用和药理动力学建模提供基础.
主要方法:
- 评估了HEK293细胞过度表达OATP1B1,OATP1B3或OATP2B1.3的状态因子吸收.
- 确定了阿托瓦斯塔丁,瓦斯塔丁反体,普拉瓦斯塔丁,罗斯瓦斯塔丁和西姆瓦斯塔丁酸的动力参数 (Km).
- 进行了对载体亲和和和基质特异性的比较分析.
主要成果:
- 这三种OATP都携带了阿托瓦斯塔丁和罗斯瓦斯塔丁,具有不同的亲和力.
- OATP2B1对流沙他丁反体有很高的亲和力,而OATP1B3没有运输它们.
- 只有OATP1B1运输了simvastatin酸;OATP1B1证明了所有测试的他类药物的运输,对疏水性他类药物的亲和力更高.
结论:
- 在OATP异型中,他类药物运输亲和力存在显著差异.
- OATP1B1对他类药物具有广泛的基质特异性,与OATP1B3和OATP2B1.1不同.
- 这些载体-OATP相互作用对于解释临床的他类药物基因相互作用和优化药物动力学模型至关重要.
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