arXiv:2504.11091q-bio.BMcs.AI2025-04被引 5

AI驱动全流程抗生素发现,从靶点筛选到化合物生成

AI-guided Antibiotic Discovery Pipeline from Target Selection to Compound Identification

  • 用结构聚类筛选保守且人体无同源的细菌靶点
  • 6种生成模型对比显示DeepBlock和TamGen表现最佳
  • 适合医药研发者参考AI药物设计流程

抗生素耐药性正构成日益严重的全球健康危机,亟需针对新型细菌机制的新疗法。蛋白质结构预测与机器学习分子生成的进展为加速药物发现带来可能,但如何在实际管线中选择和整合这些模型仍缺乏指导。本研究构建了一个端到端的人工智能驱动抗生素发现管线,涵盖靶点识别到化合物实现。我们利用多病原体预测蛋白组的结构聚类,识别出保守、必需且无人体同源性的靶点。随后系统评估六种主流的3D结构感知生成模型(涵盖扩散、自回归、图神经网络和语言模型架构),在可用性、化学有效性及生物相关性方面进行比较。通过严格的后处理过滤和商业类似物搜索,将超过10万种生成化合物精简为可合成的聚焦集。结果表明DeepBlock和TamGen在多种指标上表现最优,同时揭示模型复杂度、可用性与输出质量间的显著权衡。本工作为早期抗生素开发中部署人工智能提供了对比基准与实施蓝图。

原文摘要 · Abstract (English)

Antibiotic resistance presents a growing global health crisis, demanding new therapeutic strategies that target novel bacterial mechanisms. Recent advances in protein structure prediction and machine learning-driven molecule generation offer a promising opportunity to accelerate drug discovery. However, practical guidance on selecting and integrating these models into real-world pipelines remains limited. In this study, we develop an end-to-end, artificial intelligence-guided antibiotic discovery pipeline that spans target identification to compound realization. We leverage structure-based clustering across predicted proteomes of multiple pathogens to identify conserved, essential, and non-human-homologous targets. We then systematically evaluate six leading 3D-structure-aware generative models$\unicode{x2014}$spanning diffusion, autoregressive, graph neural network, and language model architectures$\unicode{x2014}$on their usability, chemical validity, and biological relevance. Rigorous post-processing filters and commercial analogue searches reduce over 100 000 generated compounds to a focused, synthesizable set. Our results highlight DeepBlock and TamGen as top performers across diverse criteria, while also revealing critical trade-offs between model complexity, usability, and output quality. This work provides a comparative benchmark and blueprint for deploying artificial intelligence in early-stage antibiotic development.

抗生素发现AI药物设计分子生成靶点筛选

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