一种用于预测复合大脑度-时间概况的实用制方法:PK建模和机器学习的结合
Koichi Handa1, Daichi Fujita1, Mariko Hirano1
1Toxicology & DMPK Research Department, Teijin Institute for Bio-medical Research, Teijin Pharma Limited, 4-3-2 Asahigaoka, Hino-shi, Tokyo 191-8512, Japan.
开发一种新的in silico方法,将建模和模拟与机器学习相结合,以预测大脑中的药物度. 这种方法减少了对动物进行广泛测试的需求,为研究中枢神经系统药物提供了更有效的方法.
科学领域:
- 药理动力学和药理动力学
- 计算机化药物发现技术
- 神经科学是一个神经科学.
背景情况:
- 全球人口老龄化推动了对新型中枢神经系统 (CNS) 药物的需求.
- 血脑屏障对中枢神经系统的药物输送构成了重大挑战.
- 目前用于评估大脑中药物分布的方法通常是昂贵的,耗时的,需要进行广泛的动物研究.
研究的目的:
- 开发一种用于脑药物度的in silico预测方法.
- 减少中枢神经系统药物开发所需的实验数据和动物使用.
- 将建模和模拟 (M&S) 与机器学习 (ML) 整合起来,以提高预测准确度.
主要方法:
- 构建了一个混合模型,将血度-时间概况与大脑区的动态联系起来,并考虑过渡时间和分布.
- 机器学习模型是使用化学结构描述器构建的,以预测运动参数.
- 评估了三个情景:情景I (全脑度-时间数据),情景II (ML预测被输入混合模型) 和情景III (使用单个时间点进行参数重定).
主要成果:
- 场景II实现了0.445/0.517的RMSE/R2值,用于预测大脑化合物度-时间概况.
- 场景III,使用单个时间点,显著提高了预测准确度,RMSE/R2值为0.246/0.805.
- 开发的方法证明了高准确性和实用性,用于预测大脑化合物度-时间概况.
结论:
- 综合M&S和ML方法为预测中枢神经系统药物药理动力学提供了强大的工具.
- 该方法显著减少了对广泛实验数据和动物试验的需求.
- 这种in silico策略为中枢神经系统药物发现和开发提供了实用和准确的解决方案.
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