NGT:具有合成性保证的生成性AI从Tera规模的虚拟屏幕上发现了MC2R抑制剂
Saulo H P de Oliveira1, Aryan Pedawi1, Victor Kenyon1
1Atomwise Inc, San Francisco, California 94108, United States.
Journal of medicinal chemistry
|October 29, 2024
概括
通过强化学习,NeuralGenThesis (NGT) 从巨大的虚拟库中高效地生成新型药物化合物. 这种方法加快了强效和选择性抑制剂的发现,比如那些发现的黑色皮质素-2受体 (MC2R).
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
- 药品化学和药理学 药品化学和药理学
背景情况:
- 虚拟化合物库对于药物发现至关重要,它提供了大量可合成的分子.
- 这些图书馆的指数式增长给传统的复合搜索方法带来了重大挑战.
- 超大型虚拟库的有效导航对于加速药物发现管道至关重要.
研究的目的:
- 介绍NeuralGenThesis (NGT),一种新的强化学习方法,用于从超大虚拟库生成化合物.
- 为了能够同时生成满足多个用户定义约束的化合物.
- 证明NGT在识别潜在候选药物的可扩展性和效率.
主要方法:
- 在超大虚拟库上训练生成模型.
- 使用规范化流来学习隐藏空间分布以满足约束.
- 应用NGT来识别黑色皮质素-2受体 (MC2R) 的强效和选择性抑制剂.
主要成果:
- 在没有预先指定属性计算方法的情况下,NGT成功生成了满足多个约束的化合物.
- 该方法使得从三万亿个化合物库中识别出强效和选择性的MC2R抑制剂成为可能.
- 展示了NGT在巨大的化学空间中导航和提取有价值的分子的能力.
结论:
- NGT提供了一种强大且可扩展的解决方案,用于探索超大虚拟复合库.
- 强化学习框架加速了药物开发的 in silico 发现和优化阶段.
- NGT有助于有效识别符合特定治疗要求的候选药物.
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