Trial reportRespiratory research2020
Smoking-associated increase in mucins 1 and 4 in human airways.
Trial report in Respiratory research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02627872 (Clinical & Systems Medicine Investigations of Smoking-related Chronic Obstructive Pulmonary Disease), which is not on this map. Cited by 11 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Clinical & Systems Medicine Investigations of Smoking-related Chronic Obstructive Pulmonary Disease
Who cites it
11 citing papers in PubMed, 17 citations in OpenAlex.
- Article
- Pathophysiological Responses of Oral Keratinocytes After Exposure to Flavored E-Cigarette Liquids.Dentistry journal · 2025Article
- Expression Levels of MUC5AC and MUC5B in Airway Goblet Cells Are Associated with Traits of COPD and Progression of Chronic Airflow Limitation.International journal of molecular sciences · 2024Article
- Interpretable machine learning uncovers epithelial transcriptional rewiring and a role for Gelsolin in COPD.JCI insight · 2024Article
- Mucins 3A and 3B Are Expressed in the Epithelium of Human Large Airway.International journal of molecular sciences · 2023Observational
- Bioactive PI3-kinase/Akt/mTOR Inhibitors in Targeted Lung Cancer Therapy.Advanced pharmaceutical bulletin · 2023Review
- Higher Infection Risk among Health Care Workers and Lower Risk among Smokers Persistent across SARS-CoV-2 Waves-Longitudinal Results from the Population-Based TiKoCo Seroprevalence Study.International journal of environmental research and public health · 2022Article
- Dependence on the MUC1-C Oncoprotein in Classic, Variant, and Non-neuroendocrine Small Cell Lung Cancer.Molecular cancer research : MCR · 2022Article
- Article
- miRNA-mRNA-protein dysregulated network in COPD in women.Frontiers in genetics · 2022Article
- Women with COPD from biomass smoke have reduced serum levels of biomarkers of angiogenesis and cancer, with EGFR predominating, compared to women with COPD from smoking.Chronic respiratory diseaseArticle
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors at 5 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
rationaleSmoking-related chronic obstructive pulmonary disease (COPD) is associated with dysregulated production of mucus. Mucins (MUC) are important both for mucus secretion and epithelial defense. We have examined the distribution of MUC1 and MUC4 in the airway epithelial cells of never-smokers and smokers with and without COPD.
methodsMucosal biopsies and bronchial wash samples were obtained by bronchoscopy from age- and sex-matched COPD-patients (n = 38; GOLD I-II/A-B), healthy never-smokers (n = 40) and current smokers with normal lung function (n = 40) from the Karolinska COSMIC cohort (NCT02627872). Cell-specific expressions of MUC1, MUC4 and regulating factors, i.e., epithelial growth factor receptor (EGFR) 1 and 2, were analyzed by immunohistochemistry. Soluble MUC1 was measured by quantitative immunodetection on slot blot.
resultsThe levels of cell-bound MUC1 expression in basal cells and in soluble MUC1 in bronchial wash were increased in smokers, regardless of airway obstruction. Patients with chronic bronchitis had higher MUC1 expression. The expression of MUC4 in cells with goblet cell phenotype was increased in smokers. The expression of EGFR2, but not that of EGFR1, was higher in never-smokers than in smokers.
conclusionsSmoking history and the presence of chronic bronchitis, regardless of airway obstruction, affect both cellular and soluble MUC1 in human airways. Therefore, MUC1 may be a novel marker for smoking- associated airway disease.
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