ADME与药物相似性:通过药理动力学引导的多任务学习来丰富分子基础模型,用于药物相似性预测
Dongmin Bang1,2, Juyeon Kim3, Haerin Song4
1Interdisciplinary Program in Bioinformatics, Seoul National University, Seoul, 08826, Republic of Korea.
Bioinformatics (Oxford, England)
|July 15, 2025
概括
一个新的AI管道,ADME-DL,通过结合药理动力学因素来改善药物相似性预测. 这种方法增强了分子基础模型,以实现更快,更准确的药物发现候选人查.
科学领域:
- 计算化学和化学信息学
- 人工智能在药物发现中的作用
- 药理动力学和药物代谢的药理动力学
背景情况:
- 人工智能驱动的生成模型加速了分子图书馆的设计,需要快速评估药物相似性.
- 传统方法往往忽略了关键的药理动力学 (PK) 因素,如吸收,分布,新陈代谢和分泌 (ADME).
- 现有的深度学习模型无法捕捉ADME任务之间的复杂关系,影响临床可行性预测.
研究的目的:
- 引入ADME-DL,这是一个新的两步管道,用于增强药物相似性评估.
- 改进分子嵌入内PK信息的编码.
- 通过整合结构和PK数据,准确地分类候选药物.
主要方法:
- ADME-DL采用了两步管道:连续的ADME多任务学习,然后是药物相似性分类.
- 分子基础模型 (MFMs) 使用数据驱动的任务依赖性分析来增强,该分析反映了A→D→M→E流.
- 然后使用ADME信息嵌入来进行分类,将批准的药物与化学库区分开来.
主要成果:
- 顺序的ADME多任务学习方法比最先进的基线提高了高达2.4%的性能.
- 在测试的MFM中,性能提升达到了+18.2%.
- 案例研究证实,PK等级方法产生了更相关的预测,与药物发现阶段保持一致.
结论:
- ADME-DL显著提高了药物候选分子的早期过.
- 该管道弥合了纯结构选和PK意识建模之间的差距.
- 这种方法提供了一个更准确,更有效的方法来评估药物相似性.
相关概念视频
Pharmacokinetic Models: Comparison and Selection Criterion
152
Physiological and compartmental models are valuable tools used in studying biological systems. These models rely on differential equations to maintain mass balance within the system, ensuring an accurate representation of the dynamic processes at play.
Physiological models take a detailed approach by considering specific molecular processes. They can predict drug distribution, metabolism, and elimination changes, providing a comprehensive understanding of how drugs interact with the body.
Physiological models take a detailed approach by considering specific molecular processes. They can predict drug distribution, metabolism, and elimination changes, providing a comprehensive understanding of how drugs interact with the body.
152
Pharmacokinetic Models: Overview
1.2K
Pharmacokinetic models utilize mathematical analysis to achieve a detailed quantitative understanding of a drug's life cycle within the body. They are instrumental in simulating a drug's pharmacokinetic parameters, predicting drug concentrations over time, optimizing dosage regimens, linking concentrations with pharmacologic activity, and estimating potential toxicity.
There are three primary types of models: empirical, compartment, and physiological. Empirical models, with minimal...
There are three primary types of models: empirical, compartment, and physiological. Empirical models, with minimal...
1.2K
Model Approaches for Pharmacokinetic Data: Distributed Parameter Models
129
Pharmacokinetic models are mathematical constructs that represent and predict the time course of drug concentrations in the body, providing meaningful pharmacokinetic parameters. These models are categorized into compartment, physiological, and distributed parameter models.
The distributed parameter models are specifically designed to account for variations and differences in some drug classes. This model is particularly useful for assessing regional concentrations of anticancer or...
The distributed parameter models are specifically designed to account for variations and differences in some drug classes. This model is particularly useful for assessing regional concentrations of anticancer or...
129
Mechanistic Models: Overview of Compartment Models
167
Mechanistic models, a category encompassing both physiological and compartmental modeling, differ from empirical models' approaches to incorporating known factors about the systems being modeled. Empirical models describe data with minimal assumptions, while mechanistic models aim to provide a robust description of available data by specifying assumptions and integrating known factors about the system. Compartmental analysis is a key example of a mechanistic model in pharmacokinetics and...
167
Physiological Pharmacokinetic Models: Incorporating Hepatic Transporter-Mediated Clearance
84
Drug transporters are critical in drug absorption, distribution, and excretion processes. They should be included in physiological-based pharmacokinetic (PBPK) models, which help predict human drug disposition. However, predicting this is challenging during drug development, especially when liver transport is involved. However, with a realistic representation of body transport processes, an accurate model may be possible.
A recent model describes pravastatin's hepatobiliary excretion,...
A recent model describes pravastatin's hepatobiliary excretion,...
84
Model Approaches for Pharmacokinetic Data: Compartment Models
204
Compartmental analysis is a widely adopted approach to characterizing drug pharmacokinetics. It uses compartment models that conceptualize the body as a collection of reversibly communicating compartments, each representing a group of tissues exhibiting similar drug distribution characteristics. The movement rate of the drug between these compartments is typically described by first-order kinetics.
Two primary types of compartment models are recognized: mammillary and catenary. The more...
Two primary types of compartment models are recognized: mammillary and catenary. The more...
204


