分析器:用于预测代谢稳定性的分类和回归模型
Anastasia Rudik1, Leonid Stolbov1, Alexey Lagunin1,2
1Department of Bioinformatics, Institute of Biomedical Chemistry, Moscow, Russia.
Molecular informatics
|February 4, 2026
概括
预测药物的代谢稳定性对于评估治疗价值和毒性至关重要. 新的计算模型和MetaStab-Analyzer工具为小鼠,老鼠和人类的药物化合物提供了准确的预测.
科学领域:
- 药理动力学和药物新陈代谢
- 计算化学和化学信息学
- 毒理学和药物安全问题
背景情况:
- 药物代谢稳定性是药物动力学特征的关键决定因素,影响治疗疗效和毒理学风险.
- 使用肝细胞和肝脏显微体的体外测试是通过半衰期 (t1/2) 和清除 (CL) 等参数来确定代谢稳定性的标准.
- 现有的工具往往缺乏一种综合的定性和定量方法,用于在多种物种中预测代谢稳定性.
研究的目的:
- 开发和验证用于预测药物代谢稳定的计算模型.
- 创建一个用户友好的 Web 应用程序,整合这些预测模型.
- 为候选药物提供定性和定量代谢稳定性评估.
主要方法:
- 收集了来自ChEMBL和PubChem的实验代谢稳定性数据的8000多种化合物.
- 采用纯粹的贝叶斯和自相一致的极端分类器 (SCEC) 算法与MNA和QNA描述符用于分类模型.
- 用自相一致的回归 (SCR) 来开发定量预测模型.
- 将模型集成到免费可用的MetaStab-Analyzer网络应用程序中.
主要成果:
- 分类模型实现了高准确性,大多数的AUC值超过0.85.
- 回归模型显示出不同的预测能力,R平方值在0.35到0.7.7之间.
- MetaStab-Analyzer提供定性 (稳定/不稳定/中等) 和定量预测,使用数值信心指标.
- 该工具支持对小鼠,大鼠和人类的代谢稳定性的预测.
结论:
- 使用机器学习开发了准确的计算模型来预测药物代谢稳定性.
- "MetaStab-Analyzer"提供了一个新的,集成的平台,用于双质量-定量代谢稳定性评估.
- 该工具通过提供可解释和可靠的预测来增强药物发现,帮助选择更安全,更有效的候选药物.
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