arXiv:2501.02824q-bio.BMcs.LG2025-01被引 5

基于蛋白互作网络构建GABA受体麻醉预测模型,发现潜在新药候选。

Proteomic Learning of Gamma-Aminobutyric Acid (GABA) Receptor-Mediated Anesthesia

  • 融合4000+蛋白互作与150万化合物数据,构建靶点-药物相互作用网络。
  • 筛选18万药物候选物,识别出对GABRA5受体具有高潜力的先导化合物。
  • 结合ADMET性质评估与结构优化,助力精准麻醉药研发。

麻醉剂在手术和治疗中至关重要,但存在副作用和效果差异的问题,亟需更精确可控的新麻醉药物。针对中枢神经系统主要抑制性受体GABA受体,可增强其抑制作用,有望降低副作用并提升药效。本研究基于24种GABA受体亚型,整合超过4000个蛋白质-蛋白质互作(PPI)节点及超过150万已知结合化合物,构建了蛋白组学学习框架以支持麻醉机制研究。我们建立了相应的药物-靶点相互作用网络,用于发现新型麻醉剂的先导化合物。为确保预测可靠性,从PPI网络中980个靶点中精选136个目标进行建模,并采用三种机器学习算法,融合预训练Transformer与自编码器嵌入等先进自然语言处理技术。通过全面筛选,评估了超18万种靶向GABRA5受体的药物候选物的副作用和再利用潜力,同时分析其ADMET(吸收、分布、代谢、排泄和毒性)特性,筛选出近最优特征的候选分子。此外,还对现有麻醉剂结构进行了优化。该方法为新型麻醉药开发、用药优化及麻醉相关副作用机制理解提供了创新策略。

原文摘要 · Abstract (English)

Anesthetics are crucial in surgical procedures and therapeutic interventions, but they come with side effects and varying levels of effectiveness, calling for novel anesthetic agents that offer more precise and controllable effects. Targeting Gamma-aminobutyric acid (GABA) receptors, the primary inhibitory receptors in the central nervous system, could enhance their inhibitory action, potentially reducing side effects while improving the potency of anesthetics. In this study, we introduce a proteomic learning of GABA receptor-mediated anesthesia based on 24 GABA receptor subtypes by considering over 4000 proteins in protein-protein interaction (PPI) networks and over 1.5 millions known binding compounds. We develop a corresponding drug-target interaction network to identify potential lead compounds for novel anesthetic design. To ensure robust proteomic learning predictions, we curated a dataset comprising 136 targets from a pool of 980 targets within the PPI networks. We employed three machine learning algorithms, integrating advanced natural language processing (NLP) models such as pretrained transformer and autoencoder embeddings. Through a comprehensive screening process, we evaluated the side effects and repurposing potential of over 180,000 drug candidates targeting the GABRA5 receptor. Additionally, we assessed the ADMET (absorption, distribution, metabolism, excretion, and toxicity) properties of these candidates to identify those with near-optimal characteristics. This approach also involved optimizing the structures of existing anesthetics. Our work presents an innovative strategy for the development of new anesthetic drugs, optimization of anesthetic use, and deeper understanding of potential anesthesia-related side effects.

麻醉药研发蛋白互作机器学习

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