Siwen Li, Haojie Xu, Fengxi Liu, Rong Ni, Yinping Shi, Xiao Li
{"title":"In silico prediction of drug-induced cardiotoxicity with ensemble machine learning and structural pattern recognition.","authors":"Siwen Li, Haojie Xu, Fengxi Liu, Rong Ni, Yinping Shi, Xiao Li","doi":"10.1007/s11030-025-11266-8","DOIUrl":null,"url":null,"abstract":"<p><p>Drug-induced cardiotoxicity poses a significant risk to human health, and reliable predictive models are needed for safety assessment. In this study, a range of machine and deep learning models were developed for five cardiotoxicity end points, including heart failure (HF), arrhythmia (ARR), heart block (HB), hypertension (HP), and heart attack (HA). A total of 110 predictive models were constructed for each cardiotoxicity endpoint using various algorithms and molecular descriptors, and consensus models were developed based on the best-performing individual classifiers. The consensus models consistently outperformed individual models in cross-validation and external validation. Further molecular property analysis revealed that cardiotoxic compounds tend to exhibit higher molecular weight, increased lipophilicity (logP), lower hydrogen bonding capacity (HBD and HBA), and reduced topological polar surface area (TPSA). Additionally, key structural alerts (SAs), including secondary amines, benzene derivatives, sulfonamide/sulfonylurea groups, and heterocyclic structures, were identified. These SAs may mediate cardiotoxicity through ion channel inhibition, oxidative stress induction, and calcium homeostasis disruption. This study provides an integrated machine learning and deep learning computational framework for drug cardiotoxicity assessment and provides an exploration of the structural characteristics of cardiotoxic compounds, which is helpful for the discovery of safer drugs and chemical risk assessment.</p>","PeriodicalId":708,"journal":{"name":"Molecular Diversity","volume":" ","pages":""},"PeriodicalIF":3.9000,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Molecular Diversity","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1007/s11030-025-11266-8","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}
引用次数: 0
Abstract
Drug-induced cardiotoxicity poses a significant risk to human health, and reliable predictive models are needed for safety assessment. In this study, a range of machine and deep learning models were developed for five cardiotoxicity end points, including heart failure (HF), arrhythmia (ARR), heart block (HB), hypertension (HP), and heart attack (HA). A total of 110 predictive models were constructed for each cardiotoxicity endpoint using various algorithms and molecular descriptors, and consensus models were developed based on the best-performing individual classifiers. The consensus models consistently outperformed individual models in cross-validation and external validation. Further molecular property analysis revealed that cardiotoxic compounds tend to exhibit higher molecular weight, increased lipophilicity (logP), lower hydrogen bonding capacity (HBD and HBA), and reduced topological polar surface area (TPSA). Additionally, key structural alerts (SAs), including secondary amines, benzene derivatives, sulfonamide/sulfonylurea groups, and heterocyclic structures, were identified. These SAs may mediate cardiotoxicity through ion channel inhibition, oxidative stress induction, and calcium homeostasis disruption. This study provides an integrated machine learning and deep learning computational framework for drug cardiotoxicity assessment and provides an exploration of the structural characteristics of cardiotoxic compounds, which is helpful for the discovery of safer drugs and chemical risk assessment.
期刊介绍:
Molecular Diversity is a new publication forum for the rapid publication of refereed papers dedicated to describing the development, application and theory of molecular diversity and combinatorial chemistry in basic and applied research and drug discovery. The journal publishes both short and full papers, perspectives, news and reviews dealing with all aspects of the generation of molecular diversity, application of diversity for screening against alternative targets of all types (biological, biophysical, technological), analysis of results obtained and their application in various scientific disciplines/approaches including:
combinatorial chemistry and parallel synthesis;
small molecule libraries;
microwave synthesis;
flow synthesis;
fluorous synthesis;
diversity oriented synthesis (DOS);
nanoreactors;
click chemistry;
multiplex technologies;
fragment- and ligand-based design;
structure/function/SAR;
computational chemistry and molecular design;
chemoinformatics;
screening techniques and screening interfaces;
analytical and purification methods;
robotics, automation and miniaturization;
targeted libraries;
display libraries;
peptides and peptoids;
proteins;
oligonucleotides;
carbohydrates;
natural diversity;
new methods of library formulation and deconvolution;
directed evolution, origin of life and recombination;
search techniques, landscapes, random chemistry and more;