2014
DOI: 10.1371/journal.pone.0088051
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Smoking Dysregulates the Human Airway Basal Cell Transcriptome at COPD Risk Locus 19q13.2

Abstract: Genome-wide association studies (GWAS) and candidate gene studies have identified a number of risk loci associated with the smoking-related disease COPD, a disorder that originates in the airway epithelium. Since airway basal cell (BC) stem/progenitor cells exhibit the earliest abnormalities associated with smoking (hyperplasia, squamous metaplasia), we hypothesized that smoker BC have a dysregulated transcriptome, enriched, in part, at known GWAS/candidate gene loci. Massive parallel RNA sequencing was used t… Show more

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Cited by 65 publications
(59 citation statements)
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“…In COPD, recent evidence suggests that basal progenitor cells, which are crucial for airway epithelial differentiation, exhibit a reduced regenerative capacity [115,116]. Similar to other cell types, stem or progenitor cells within the lung are exposed to environmental stressors and most likely exhibit cell-autonomous hallmarks of ageing, including cellular senescence, epigenetic changes and telomere attrition [117].…”
Section: Stem Cell Exhaustionmentioning
confidence: 99%
“…In COPD, recent evidence suggests that basal progenitor cells, which are crucial for airway epithelial differentiation, exhibit a reduced regenerative capacity [115,116]. Similar to other cell types, stem or progenitor cells within the lung are exposed to environmental stressors and most likely exhibit cell-autonomous hallmarks of ageing, including cellular senescence, epigenetic changes and telomere attrition [117].…”
Section: Stem Cell Exhaustionmentioning
confidence: 99%
“…RNA sequencing of nonsmoker primary basal cells (n=10) was assessed as previously described (Ryan et al, 2014). The data are publically available at the Gene Expression Omnibus (GEO) site (http://www.ncbi.nlm.nih.gov/ geo/), accession number 64464.…”
Section: Rna Sequencingmentioning
confidence: 99%
“…Gene Ontology analysis of the categories of the SAE waterpipe-responsive genes showed a broad distribution dominated by genes related to metabolism, signal transduction, transcription, and transport ( Figure 2C). Interestingly, while the SAE transcriptome of cigarette smokers is characterized by upregulation of many oxidative stress-related genes (13)(14)(15)(16)(17), very few genes in this category were upregulated in the SAE of waterpipe smokers (categorized as functional category "other" due to the low number of oxidant-related genes) (see DISCUSSION in the online supplement and Table E2). …”
Section: Small Airway Epitheliummentioning
confidence: 99%
“…On the basis of knowledge that the first abnormalities associated with cigarette smoking are found in lung cells long before there are abnormalities in clinical parameters such as lung function and lung imaging (12)(13)(14)(15)(16)(17), we hypothesized that even light-use waterpipe smoking for only a few years, exposing the smoker not only to tobacco smoke but also to the flavorings added to the tobacco and the volatile components of the heated charcoal surrounding the tobacco, likely mediates abnormalities relevant to lung health.…”
mentioning
confidence: 99%