在应用程序中使用对反应性代谢物的结构警报SpotRMM
1Awametox AB, Lilldalsvägen 17 A, SE-14461 Rönninge, Sweden.
Chemical research in toxicology
|August 1, 2024
概括
药物设计旨在防止反应性代谢物形成,这是造成肝损伤的原因. 许多具有肝毒性的激酶抑制剂显示结构性警报,但有些缺乏明确的警报,突出显示了当前药物安全性评估的局限性.
科学领域:
- 药用化学 医学化学
- 药物代谢和药理动力学
- 毒理学 毒理学 毒理学
背景情况:
- 反应性代谢物 (RM) 的形成是与特异性药物不良反应 (IADRs) 相关的关键机制,特别是肝毒性.
- 在药物设计的早期确定形成RM的候选药物对于减轻IADRs风险至关重要.
- 现有的结构-毒性关系往往是由于缺乏对许多IADR的明确机制理解而受到限制.
研究的目的:
- 在药物设计中评估结构性警报 (SAs) 在预测与反应性代谢物形成相关的肝毒性方面的实用性.
- 评估一组已建立的SA与已知的肝毒性激酶抑制剂相比.
主要方法:
- 利用SpotRM应用程序,对已知结构警报的面板进行检测,对25种已记录肝毒性的激酶抑制剂药物进行了检测.
- 分析了每个药物的标记结构警报的存在和数量.
主要成果:
- 大多数评估的肝毒性激酶抑制剂都被多个已建立的结构性警报标记,表明潜在的RM形成负债.
- 测试中的三种药物没有表现出明确的结构警报,这表明目前基于SA的预测模型存在局限性.
- 这些发现强调了SAS在药物设计中的重要性和局限性,用于预测肝毒性.
结论:
- 结构性警报是早期取消潜在候选药物的选择的宝贵工具,容易产生反应性代谢物形成和随后的肝毒性.
- 一些肝毒药物中没有明确的SA,这凸显了预测模型的不断改进和考虑更广泛的毒理机制的需要.
- 优化选择策略和了解SA的范围对于有效的药物设计和安全评估至关重要.
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