ArticleRespirology (Carlton, Vic.)2023
Smoking induces shifts in cellular composition and transcriptome within the bronchial mucus barrier.
Article in Respirology (Carlton, Vic.), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.
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Who cites it
8 citing papers in PubMed, 1 synthesis or guideline pooled it, 7 citations in OpenAlex.
- Host factors associated with respiratory particle emission and virus presence within respiratory particles: a systematic review.Frontiers in microbiology · 2025Pooled it
- Temporal Effects of Cigarette Smoke and Phytochemical-Based E-Liquid Aerosols on Tracheo-Alveolar Histopathology and the IL-6/TNF-α Molecular Signaling Axis.Current issues in molecular biology · 2026Article
- Beyond spirometry: understanding COPD origins to support a new diagnostic approach.ERJ open research · 2026Review
- Computed tomography characteristics of chronic bronchitis and its association with disease severity and clinical outcomes in viral pneumonia: a retrospective cohort study.Journal of thoracic disease · 2025Article
- Advances on the Role of Lung Macrophages in the Pathogenesis of Chronic Obstructive Pulmonary Disease in the Era of Single-Cell Genomics.International journal of medical sciences · 2025Review
- Mucins 3A and 3B Are Expressed in the Epithelium of Human Large Airway.International journal of molecular sciences · 2023Observational
- Genetic regulators of sputum mucin concentration and their associations with COPD phenotypes.PLoS genetics · 2023Article
- Smoking induces shifts in cellular composition and transcriptome within the bronchial mucus barrier.Respirology (Carlton, Vic.) · 2023Article
Corrections and comments
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Authors and funding
14 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND AND
objectiveSmoking disturbs the bronchial-mucus-barrier. This study assesses the cellular composition and gene expression shifts of the bronchial-mucus-barrier with smoking to understand the mechanism of mucosal damage by cigarette smoke exposure. We explore whether single-cell-RNA-sequencing (scRNA-seq) based cellular deconvolution (CD) can predict cell-type composition in RNA-seq data.
methodsRNA-seq data of bronchial biopsies from three cohorts were analysed using CD. The cohorts included 56 participants with chronic obstructive pulmonary disease [COPD] (38 smokers; 18 ex-smokers), 77 participants without COPD (40 never-smokers; 37 smokers) and 16 participants who stopped smoking for 1 year (11 COPD and 5 non-COPD-smokers). Differential gene expression was used to investigate gene expression shifts. The CD-derived goblet cell ratios were validated by correlating with staining-derived goblet cell ratios from the COPD cohort. Statistics were done in the R software (false discovery rate p-value < 0.05).
resultsBoth CD methods indicate a shift in bronchial-mucus-barrier cell composition towards goblet cells in COPD and non-COPD-smokers compared to ex- and never-smokers. It shows that the effect was reversible within a year of smoking cessation. A reduction of ciliated and basal cells was observed with current smoking, which resolved following smoking cessation. The expression of mucin and sodium channel (ENaC) genes, but not chloride channel genes, were altered in COPD and current smokers compared to never smokers or ex-smokers. The goblet cell-derived staining scores correlate with CD-derived goblet cell ratios.
conclusionSmoking alters bronchial-mucus-barrier cell composition, transcriptome and increases mucus production. This effect is partly reversible within a year of smoking cessation. CD methodology can predict goblet-cell percentages from RNA-seq.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.