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This study aimed to identify asthma phenotypes by clustering qCT measurements of airway dimensions, lung volumes, and densitometry, and to elucidate the underlying molecular pathways through sputum proteomics. We applied consensus clustering to qCT data from 239 asthma patients (severe and mild\/moderate) and 68 healthy controls from the Chinese C\u2010BIOPRED cohort. Four distinct qCT clusters emerged: cluster 1, characterized by luminal dilation, severe air trapping, and reduced lung density; cluster 2, with thickened airway walls and luminal narrowing without air trapping; cluster 3, showing mild luminal dilation, preserved lung volumes, and optimal spirometry; and cluster 4, featuring airway wall thickening, luminal narrowing, severe air trapping, and profound airflow obstruction. Sputum eosinophilia was elevated in clusters 1 and 4. Proteomics revealed upregulated pathways in apoptosis execution and cornified envelope formation in cluster 1, while clusters 2 and 4 exhibited enhanced complement activation, fibrin formation, plasma lipoprotein assembly, and insulin\u2010like growth factor (IGF) transport regulation. These findings delineate qCT\u2010derived phenotypes and their associated underlying mechanisms of airway remodeling and airflow obstruction in severe asthma.<\/jats:p>","DOI":"10.1002\/mco2.70471","type":"journal-article","created":{"date-parts":[[2025,11,9]],"date-time":"2025-11-09T19:00:36Z","timestamp":1762714836000},"source":"Crossref","is-referenced-by-count":0,"title":["Quantitative Computed Tomographic Clusters in C\u2010BIOPRED Asthma Cohort: Association with Sputum Proteomics"],"prefix":"10.1002","volume":"6","author":[{"given":"Zhenan","family":"Deng","sequence":"first","affiliation":[{"name":"State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center For Respiratory Medicine, Department of Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health The First Affiliated Hospital of Guangzhou Medical University  Guangzhou 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Harefield Hospital, Guy's St Thomas NHS Foundation Trust  London UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Meiling","family":"Jin","sequence":"additional","affiliation":[{"name":"Department of Respiratory Medicine Zhongshan Hospital  Shanghai China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Qingling","family":"Zhang","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center For Respiratory Medicine, Department of Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health The First Affiliated Hospital of Guangzhou Medical University  Guangzhou China"},{"name":"Guangzhou National Laboratory Bioland  Guangzhou China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"name":"the C\u2010BIOPRED 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