ArticlePloS one2026
Identifying and validating ITGB2 and HNRNPAB as diagnostic biomarkers in chronic obstructive pulmonary disease using bioinformatics and Integrated Machine Learning Methods.
Article in PloS one, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
BACKGROUND AND
aimCOPD is a common respiratory disease characterized by progressive airflow restriction that severely affects patients' quality of life and leads to significant mortality rates worldwide. This study aims to strengthen the early diagnosis of COPD and develop personalized treatment strategies.
methodsThe methodology involved a comprehensive approach, including differential gene expression analysis, weighted gene co-expression network analysis (WGCNA), functional enrichment analysis, and machine learning techniques. Data from the combined datasets GSE37768 and GSE38974 were utilized to identify differentially expressed genes (DEGs). The machine learning integrated model was employed to screen for diagnostic molecular biomarkers related to COPD. Additionally, pathway analysis, transcription factor gene regulatory network analysis, immune cell composition analysis using CIBERSORT, and mendelian randomization analysis were conducted to elucidate the molecular mechanisms and potential biomarkers for COPD. Finally, we validated the model using Polymerase Chain Reaction (PCR), immunohistochemistry (IHC) and Immunofluorescence (IF).
resultsThis study employed bioinformatics and Integrated Machine Learning Methods to identify ITGB2 and HNRNPAB as potential related targets for COPD. Subsequent verification through PCR, IHC, and IF experiments confirmed that ITGB2 and HNRNPAB were key biomarkers for COPD. Pathway analysis revealed that ITGB2 and HNRNPAB were mainly involved in immune responses and metabolic pathways.
conclusionThis comprehensive study presents an in-depth investigation of the molecular mechanisms of COPD and identifies candidate exploratory biomarkers for further research toward early diagnosis and potential personalized treatment strategies. In future studies, the identified exploratory biomarkers should be validated in larger cohorts and their therapeutic significance explored.
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