通过阿尔多- 基因还原酶1C3调节的亚还原激活弗鲁尼特拉塞
Cátia F Marques1, Maya Narang2, Kim A Sharp2
1Department of Systems Pharmacology & Translational Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania.
阿尔多基因还原酶1C3 (AKR1C3) 将弗鲁尼特拉塞帕代谢成反应性中间体,可能增加药物的毒性. 这表明AKR1C3和AKR1C2会影响flunitrazepam的反应.
科学领域:
- 生物化学
- 药理学
- 酵素学
背景情况:
- 阿尔多基因还原酶 (AKRs) 是参与异生物代谢的氧化还原酶.
- AKRs在减少碳化合物和基中起作用.
- 在药物代谢中AKR异型的具体作用尚未完全阐明.
研究的目的:
- 研究人类AKR1C异型对含有的药物的降活性.
- 为了确定AKR1C3在flunitrazepam代谢中的作用.
- 探索弗鲁尼特拉塞帕对AKR1C2活性和神经类固醇生成的影响.
主要方法:
- 对六种含有酸盐的药物对复合人类AKR1C1,AKR1C2,AKR1C3和AKR1C4进行查.
- 使用双重质谱测量对反应代谢物的鉴定.
- 使用特定抑制剂确认HepG2细胞中的AKR1C3活性.
- 分子对接和动力学模拟来预测蛋白质 - 连接体相互作用.
主要成果:
- AKR1C3将弗鲁尼特拉塞巴姆降解为7- 氨基- 弗鲁尼特拉塞巴姆,形成酸和酸胺中间体.
- AKR1C3 抑制剂阻断了HepG2细胞中的7 - 氨基花胺的形成.
- 克罗纳泽没有通过AKR1C3代谢.
- 分子模拟表明AKR1C3与弗鲁尼特拉塞巴姆的特定相互作用,而与AKR1C1,AKR1C2和AKR1C4的相互作用不太可能.
- 发现flunitrazepam可以抑制AKR1C2的活性.
结论:
- AKR1C3调解了弗鲁尼特拉塞巴姆的降解到潜在的有毒反应中间体.
- 弗鲁尼特拉塞巴姆对AKR1C2的抑制可能会影响全孕的产生.
- 在flunitrazepam的药理反应和潜在毒性方面,AKR1C3和AKR1C2活性是重要的因素.
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