arXiv:2512.21301cs.LGq-bio.QM2025-12

基于患者转录组设计个性化抗癌药物,算法生成新分子并精准靶向

Transcriptome-Conditioned Personalized De Novo Drug Generation for AML Using Metaheuristic Assembly and Target-Driven Filtering

  • 用遗传网络分析找关键靶点,再用算法从碎片库组装新药分子
  • 生成分子符合药物特征,对目标蛋白结合能达-6.571 kcal/mol
  • 适合做精准肿瘤学研究,尤其关注急性髓系白血病的个性化治疗

急性髓系白血病(AML)因分子异质性强、复发率高,仍是临床难题。尽管精准医学已推出针对特定突变的疗法,仍有许多患者缺乏有效个性化方案。本文提出一种端到端计算框架,连接患者特异性转录组与从头药物设计。基于TCGA-LAML队列的bulk RNA测序数据,通过加权基因共表达网络分析(WGCNA)筛选出20个高价值生物标志物,包括代谢转运蛋白HK3和免疫调节受体SIGLEC9。利用AlphaFold3建模靶点结构,通过DOGSiteScorer引擎定量识别可成药热点区域。开发新型反应优先型进化元启发式算法及多目标优化程序,从片段库中组装新型配体,以空间匹配热点为导向。生成的分子在结构上具有独特性,且显著偏向药物样空间,其QED评分集中在0.5至0.7之间。通过ADMET评估和SwissDock分子对接验证,筛选出高置信候选分子,如Ligand L1,在目标蛋白A08A96上的结合自由能为-6.571 kcal/mol。结果表明,将系统生物学与元启发式分子组装结合,可生成药理可行的个体化先导化合物,为AML乃至更广泛领域的精准肿瘤学提供可扩展范式。

原文摘要 · Abstract (English)

Acute Myeloid Leukemia (AML) remains a clinical challenge due to its extreme molecular heterogeneity and high relapse rates. While precision medicine has introduced mutation-specific therapies, many patients still lack effective, personalized options. This paper presents a novel, end-to-end computational framework that bridges the gap between patient-specific transcriptomics and de novo drug discovery. By analyzing bulk RNA sequencing data from the TCGA-LAML cohort, the study utilized Weighted Gene Co-expression Network Analysis (WGCNA) to prioritize 20 high-value biomarkers, including metabolic transporters like HK3 and immune-modulatory receptors such as SIGLEC9. The physical structures of these targets were modeled using AlphaFold3, and druggable hotspots were quantitatively mapped via the DOGSiteScorer engine. Then developed a novel, reaction-first evolutionary metaheuristic algorithm as well as multi-objective optimization programming that assembles novel ligands from fragment libraries, guided by spatial alignment to these identified hotspots. The generative model produced structurally unique chemical entities with a strong bias toward drug-like space, as evidenced by QED scores peaking between 0.5 and 0.7. Validation through ADMET profiling and SwissDock molecular docking identified high-confidence candidates, such as Ligand L1, which achieved a binding free energy of -6.571 kcal/mol against the A08A96 biomarker. These results demonstrate that integrating systems biology with metaheuristic molecular assembly can produce pharmacologically viable, patient tailored leads, offering a scalable blueprint for precision oncology in AML and beyond

药物设计精准医疗机器学习癌症研究

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