ArticleAmerican journal of physiology. Lung cellular and molecular physiology2014
CCN1 secretion and cleavage regulate the lung epithelial cell functions after cigarette smoke.
Article in American journal of physiology. Lung cellular and molecular physiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 66 papers, 2 of them syntheses that pooled it.
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Who cites it
66 citing papers in PubMed, 2 syntheses or guidelines pooled it, 110 citations in OpenAlex.
- The Effect of Cigarettes and E-Cigarettes on Epithelial-Derived Extracellular Vesicles: A Systematic Review.International journal of molecular sciences · 2026Pooled it
- Extracellular vesicles and chronic obstructive pulmonary disease (COPD): a systematic review.Respiratory research · 2022Pooled it
- Article
- Bronchial epithelial-derived exosomal SLC6A14 promotes airway inflammation and mucus hypersecretion via the ZFP36L1/IL-8 axis.Functional & integrative genomics · 2026Article
- Higher Reactive Oxygen Species and cellular aging in oral mucosal cells of young smokers: a comparative analytical study.Frontiers in oral health · 2025Article
- Discovering the role of microRNAs and exosomal microRNAs in chest and pulmonary diseases: a spotlight on chronic obstructive pulmonary disease.Molecular genetics and genomics : MGG · 2024Review
- Harmonising cellular conversations: decoding the vital roles of extracellular vesicles in respiratory system intercellular communications.European respiratory review : an official journal of the European Respiratory Society · 2024Review
- Proteomics of blood extracellular vesicles in inflammatory respiratory diseases for biomarker discovery and new insights into pathophysiology.Inflammation and regeneration · 2024Review
- Effect of hypercholesterolemia on circulating and cardiomyocyte-derived extracellular vesicles.Scientific reports · 2024Article
- Exosome-encapsulated lncRNA HOTAIRM1 contributes to PMScience China. Life sciences · 2024Article
- Epigenetic regulation of pulmonary inflammation.Seminars in cell & developmental biology · 2024Review
- The role of extracellular vesicles in COPD and potential clinical value.Respiratory research · 2024Review
- Small RNA-big impact: exosomal miRNAs in mitochondrial dysfunction in various diseases.RNA biology · 2024Review
- Who Drives the Chronic Obstructive Pulmonary Disease Bus? Protease-Rich Extracellular Vesicles in Cigarette Smoke-associated Alveolar Damage.American journal of respiratory and critical care medicine · 2023Article
- Circulating Exosomes and Ambient Air Pollution Exposure in COPD.Chronic obstructive pulmonary diseases (Miami, Fla.) · 2023Article
- Extracellular vesicles and COPD: foe or friend?Journal of nanobiotechnology · 2023Review
- Extracellular Vesicles (EVs) as Crucial Mediators of Cell-Cell Interaction in Asthma.International journal of molecular sciences · 2023Review
- Extracellular vesicles: pathogenic messengers and potential therapy for neonatal lung diseases.Frontiers in pediatrics · 2023Review
- Extracellular Vesicles' Role in the Pathophysiology and as Biomarkers in Cystic Fibrosis and COPD.International journal of molecular sciences · 2022Review
- Extracellular Vesicles as Central Mediators of COPD Pathophysiology.Annual review of physiology · 2022Review
6 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
10 authors at 6 institutions in 3 countries.
Funding
Abstract
Despite extensive research, the pathogenesis of cigarette smoking (CS)-associated emphysema remains incompletely understood, thereby impeding development of novel therapeutics, diagnostics, and biomarkers. Here, we report a novel paradigm potentially involved in the development of epithelial death and tissue loss in CS-associated emphysema. After prolonged exposure of CS, CCN1 cleavage was detected both in vitro and in vivo. Full-length CCN1 (flCCN1) was secreted in an exosome-shuttled manner, and secreted plasmin converted flCCN1 to cleaved CCN1 (cCCN1) in extracellular matrix. Interestingly, exosome-shuttled flCCN1 facilitated the interleukin (IL)-8 and vascular endothelial growth factor (VEGF) release in response to cigarette smoke extract (CSE). Therefore, flCCN1 potentially promoted CS-induced inflammation via IL-8-mediated neutrophil recruitment and also maintained the lung homeostasis via VEGF secretion. Interestingly, cCCN1 abolished these functions. Furthermore, cCCN1 promoted protease and matrix metalloproteinase (MMP)-1 production after CSE. These effects were mainly mediated by the COOH-terminal fragments of CCN1 after cleavage. Both the decrease of VEGF and the elevation of MMPs favor the development of emphysema. cCCN1, therefore, likely contributes to the epithelial cell damage after CS. Additionally, CSE and cCCN1 both stimulated integrin-α7 expressions in lung epithelial cells. The integrin-α7 appeared to be the binding receptors of cCCN1 and, subsequently, mediated its cellular function by promoting MMP1. Consistent with our observation on the functional roles of cCCN1 in vitro, elevated cCCN1 level was found in the bronchoalveolar lavage fluid from mice with emphysematous changes after 6 mo CS exposure. Taken together, we hypothesize that cCCN1 promoted the epithelial cell death and tissue loss after prolonged CS exposure.
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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.