通过机器学习对化学描述物的比较分析揭示了对溶液-脂质相互作用的原子见解
Justus Johann Lange1, Andrea Anelli2, Jochem Alsenz2
1School of Pharmacy, University College Cork, College Road, Cork T12 R229, Cork County, Ireland.
Molecular pharmaceutics
|May 23, 2024
概括
预测药物在脂质中的溶解性是复杂的. 这项研究使用机器学习和新型分子描述器,如SOAP,以准确预测中链甘油三 (MCTs) 中的药物溶解度,帮助配方开发.
科学领域:
- 药物配方和开发 药物配方和开发
- 计算化学和化学信息学
- 脂质的物理化学 脂质的物理化学
背景情况:
- 药物在脂质辅料中的溶解性仍然是制药开发中的复杂挑战.
- 准确预测溶解度对于合理的药物设计和配方至关重要.
- 需要在理解分子结构与性质关系方面取得进展.
研究的目的:
- 研究用于预测中链甘油三酸 (MCT) 中药溶解性的新型分子描述器集.
- 使用机器学习开发和比较量化结构与属性关系 (QSPR) 模型.
- 确定影响脂质环境中药物溶解性的关键分子决定因素.
主要方法:
- 收集并分析了182个实验性药物溶解度值在MCT中的扩展数据集.
- 评估了四种类型的分子描述器:2D/3D描述器,亚伯拉罕溶解参数,ECFP和SOAP描述器.
- 采用规范回归算法和预处理方案来构建和验证QSPR模型.
主要成果:
- 原子位置 (SOAP) 描述符的平滑重叠产生了最准确和可解释的QSPR模型.
- 以原子为中心的SOAP描述器允许对影响溶解性的分子动机进行原子级贡献分析.
- 在测试集上使用2D/3D,SOAP和Abraham溶解描述符的模型中,实现了高的预测准确性 (RMSE = 0.50).
- 基于扩展连接指纹 (ECFP) 的模型显示出较差的预测性能.
- 不确定性估计被纳入定义模型适用性领域.
结论:
- SOAP描述符提供了一个强大的工具,可以高精度地预测MCT中的药物溶解度.
- 这种in silico方法增强了计算配方开发和合理的药物设计.
- 这些发现有助于预测脂质辅助剂中的药物负载,优化制药配方.
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