使用XGBoost工程概率和深度神经网络增强预测建模:用于构建可靠的激酶抑制QSAR模型的混合方法
Mohamed Oussama Mousser1, Brahim Matougui2, Fouad Chafaa3
1Laboratory of Physical Chemistry and Biology of Materials, Department of Physics and Chemistry, Higher Normal School of Technological Education of Skikda, 21300, Azzaba, Skikda, Algeria.
Journal of molecular graphics & modelling
|November 11, 2025
概括
一种新的混合机器学习 (ML) 模型增强了激酶抑制定量结构-活性关系 (QSAR) 预测. 这种方法结合了 eXtreme Gradient Boosting (XGBoost) 和深度神经网络 (DNN) 来提高瘤药物设计的准确性.
科学领域:
- 药用化学 医学化学
- 计算化学计算化学
- 药理学 药理学是指药理学的学科.
背景情况:
- 新型抗瘤疗法向蛋白激酶,需要分子来调节激酶活性.
- 准确预测酶抑制对于开发有效的癌症药物至关重要.
研究的目的:
- 开发一种混合机器学习架构,用于改进酶抑制定量结构-活性关系 (QSAR) 预测.
- 提高用于瘤药物设计的QSAR模型的准确性和稳定性.
主要方法:
- 一个混合ML模型,结合了极端梯度增强 (XGBoost) 和深度神经网络 (DNN).
- XGBoost 处理结构化数据特征; DNN 改进概率估计.
- 来自XGBoost的预测概率被用作DNN的输入特征.
- 在大型数据集上训练了40个QSAR模型 (559-5675个化合物,约400-500个描述符).
主要成果:
- 混合模型显著提高了比独立的XGBoost,随机森林 (RF) 和支持矢量机器 (SVM) 的准确性和稳定性.
- 对JAK2,BRAF和TRK-α的精度提升达到了14%.
- 获得了VEGFR2和PIK3Cδ的13%增强,以及其他30个激酶数据集的5-12%.
结论:
- 拟议的混合ML方法为酶抑制QSAR建模提供了卓越的性能.
- 这种方法对瘤药物设计和一般的QSAR建模有价值.
- 模型是公开可供使用的.
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