{"title":"Bioinformatics gene analysis of potential biomarkers associated with chronic kidney disease related ischemic stroke","authors":"Mingshan Xie , Ziyi Shen , Guohui Jiang","doi":"10.1016/j.jrras.2025.101841","DOIUrl":null,"url":null,"abstract":"<div><h3>Objectives</h3><div>Chronic kidney disease (CKD) is a key risk factor for ischemic stroke (IS), but the underlying key molecules and mechanisms linking CKD and IS remain unclear. This study aims to identify novel potential diagnostic biomarkers for chronic kidney disease-related ischemic stroke (CKD-IS) using bioinformatics and machine learning.</div></div><div><h3>Methods</h3><div>Relevant gene expression datasets (CKD: GSE37171, GSE66494; IS: GSE16561, GSE58294) were downloaded from the GEO database. Differentially expressed genes (DEGs) in peripheral blood samples from patients and healthy controls were identified, and common DEGs between CKD and IS were screened. Functional enrichment analysis (GO/KEGG) was performed to explore biological functions. Three machine learning algorithms (LASSO, Random Forest, SVM-RFE) were used to select candidate biomarkers, followed by construction of an artificial neural network model and validation via ROC curves. Immune infiltration analysis (CIBERSORT) was conducted to investigate associations between candidate genes and immune cells.</div></div><div><h3>Results</h3><div>A total of 2648 DEGs were identified in CKD datasets and 337 in IS datasets, with 29 common DEGs. GO enrichment analysis showed these common DEGs were significantly enriched in immune system processes and immune responses. Seven candidate genes (CYTM1, EVL, IFI27, PCED1B, S100A12, S100P, TMEM158) were screened by machine learning. The neural network model based on these genes showed good diagnostic performance (AUC: 0.966 in the training set), and ROC curves confirmed their diagnostic value (AUC: 0.50–0.96 in validation sets). Immune infiltration analysis revealed correlations between these genes and immune cells (e.g., neutrophils, T cells).</div></div><div><h3>Conclusion</h3><div>The seven identified candidate genes (CYTM1, EVL, IFI27, PCED1B, S100A12, S100P, TMEM158) are potential diagnostic biomarkers for CKD-IS, providing insights into the immune-related mechanisms underlying CKD-IS and supporting future precise diagnosis and treatment.</div></div>","PeriodicalId":16920,"journal":{"name":"Journal of Radiation Research and Applied Sciences","volume":"18 4","pages":"Article 101841"},"PeriodicalIF":2.5000,"publicationDate":"2025-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Radiation Research and Applied Sciences","FirstCategoryId":"103","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1687850725005539","RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MULTIDISCIPLINARY SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
Objectives
Chronic kidney disease (CKD) is a key risk factor for ischemic stroke (IS), but the underlying key molecules and mechanisms linking CKD and IS remain unclear. This study aims to identify novel potential diagnostic biomarkers for chronic kidney disease-related ischemic stroke (CKD-IS) using bioinformatics and machine learning.
Methods
Relevant gene expression datasets (CKD: GSE37171, GSE66494; IS: GSE16561, GSE58294) were downloaded from the GEO database. Differentially expressed genes (DEGs) in peripheral blood samples from patients and healthy controls were identified, and common DEGs between CKD and IS were screened. Functional enrichment analysis (GO/KEGG) was performed to explore biological functions. Three machine learning algorithms (LASSO, Random Forest, SVM-RFE) were used to select candidate biomarkers, followed by construction of an artificial neural network model and validation via ROC curves. Immune infiltration analysis (CIBERSORT) was conducted to investigate associations between candidate genes and immune cells.
Results
A total of 2648 DEGs were identified in CKD datasets and 337 in IS datasets, with 29 common DEGs. GO enrichment analysis showed these common DEGs were significantly enriched in immune system processes and immune responses. Seven candidate genes (CYTM1, EVL, IFI27, PCED1B, S100A12, S100P, TMEM158) were screened by machine learning. The neural network model based on these genes showed good diagnostic performance (AUC: 0.966 in the training set), and ROC curves confirmed their diagnostic value (AUC: 0.50–0.96 in validation sets). Immune infiltration analysis revealed correlations between these genes and immune cells (e.g., neutrophils, T cells).
Conclusion
The seven identified candidate genes (CYTM1, EVL, IFI27, PCED1B, S100A12, S100P, TMEM158) are potential diagnostic biomarkers for CKD-IS, providing insights into the immune-related mechanisms underlying CKD-IS and supporting future precise diagnosis and treatment.
期刊介绍:
Journal of Radiation Research and Applied Sciences provides a high quality medium for the publication of substantial, original and scientific and technological papers on the development and applications of nuclear, radiation and isotopes in biology, medicine, drugs, biochemistry, microbiology, agriculture, entomology, food technology, chemistry, physics, solid states, engineering, environmental and applied sciences.