DiffMeta-RL:强化学习指导图谱扩散用于代谢稳定的分子生成
Dayan Liu1,2, Tao Song1,2, Shuang Wang1,2
1College of Computer Science and Technology, China University of Petroleum (East China), Qingdao 266580, Shandong, China.
Journal of chemical information and modeling
|October 29, 2025
概括
研究人员开发了DiffMeta-RL,一种新的AI模型,通过减少细胞染色体P450 (CYP450) 酶相互作用来优化药物代谢稳定性. 这种方法通过提高生物可用性和减少临床失败来增强药物发现.
科学领域:
- * 计算化学 计算机化学
- * 药物发现中的人工智能
- * 药理学 药理学 药理学
背景情况:
- *优化ADMET的特性,特别是代谢稳定性,对于药物发现至关重要.
- * 细胞P450 (CYP450) 酶显著影响药物代谢,清除和潜在的药物相互作用.
- *不良的CYP450相互作用导致临床药物失败率高.
研究的目的:
- * 开发一种人工智能驱动的方法,以优化药物分子,提高代谢稳定性.
- * 创建一个可控制的分子生成框架,尽量减少CYP450责任.
- * 提高早期药物发现的效率和成功率.
主要方法:
- * 开发了DiffMeta-RL,一种包含强化学习的离散图形扩散模型.
- * 通过直接优化传播模式作为政策,实施了简化强化学习方法.
- *将MetaCYP,一种CYP450抑制预测剂,集成到引导分子生成的奖励功能中.
主要成果:
- *与现有模型相比,DiffMeta-RL在有效性,独特性和新性方面表现出卓越的表现.
- *生成的质子抑制剂 (PPI) 候选者显示出有利的预测结合亲和力.
- * 设计的PPI对CYP2C19和CYP3A4代谢的敏感性降低.
结论:
- * DiffMeta-RL为设计具有增强代谢稳定性的候选药物提供了一种强大,可控制的方法.
- *将CYP450抑制预测直接集成到生成过程中,可以简化优化.
- * 这种人工智能框架具有促进药物发现和降低消耗率的巨大潜力.
更多相关视频
10:44Inherent Dynamics Visualizer, an Interactive Application for Evaluating and Visualizing Outputs from a Gene Regulatory Network Inference Pipeline
Published on: December 7, 2021
2.6K
12:05A Simple, Robust, and High Throughput Single Molecule Flow Stretching Assay Implementation for Studying Transport of Molecules Along DNA
Published on: October 1, 2017
8.6K
相关概念视频
Diffusion
215.9K
Diffusion is the passive movement of substances down their concentration gradients—requiring no expenditure of cellular energy. Substances, such as molecules or ions, diffuse from an area of high concentration to an area of low concentration in the cytosol or across membranes. Eventually, the concentration will even out, with the substance moving randomly but causing no net change in concentration. Such a state is called dynamic equilibrium, which is essential for maintaining overall...
215.9K
Passive Diffusion: Overview and Kinetics
1.2K
Passive diffusion is a critical process that allows small lipophilic drugs to cross the cell membrane along a concentration gradient. This mechanism's efficiency depends on four primary factors: the membrane's surface area, the drug's lipid-water partition coefficient, the concentration gradient, and the membrane's thickness.
When administered orally, drugs establish a substantial concentration gradient between the gastrointestinal (GI) lumen and the bloodstream, expediting...
When administered orally, drugs establish a substantial concentration gradient between the gastrointestinal (GI) lumen and the bloodstream, expediting...
1.2K
Multi-Step Reactions
8.6K
Chemical reactions often occur in a stepwise fashion involving two or more distinct reactions taking place in a sequence. A balanced equation indicates the reacting species and the product species, but it reveals no details about how the reaction occurs at the molecular level. The reaction mechanism (or reaction path) provides details regarding the precise, step-by-step process by which a reaction occurs. Each of the steps in a reaction mechanism is called an elementary reaction. These...
8.6K
Metabolism of Chemolithotrophs
757
Chemolithotrophs are microorganisms that obtain energy by oxidizing inorganic molecules such as hydrogen gas (H₂), ammonia (NH₃), reduced sulfur compounds (H₂S, S²⁻), and ferrous iron (Fe²⁺). Unlike heterotrophic organisms that rely on organic carbon, chemolithotrophs transfer electrons from these inorganic donors to the electron transport chain (ETC), generating a proton motive force (PMF) that drives ATP synthesis through oxidative phosphorylation.
757
Synthetic Biology
5.5K
Synthetic biology is an interdisciplinary science that involves using principles from disciplines such as engineering, molecular biology, cell biology, and systems biology. It involves remodeling existing organisms from nature or constructing completely new synthetic organisms for applications such as protein or enzyme production, bioremediation, value-added macromolecule production, and the addition of desirable traits to crops, to name a few.
Golden rice
Golden rice is a genetically modified...
Golden rice
Golden rice is a genetically modified...
5.5K
