Abstract
The distribution of lung disease induced by inhaled cigarette smoke is complex, depending on many factors. With the knowledge that the small airway epithelium (SAE) is the earliest site of smoking-induced lung disease, and that the SAE gene expression is likely sensitive to inhaled cigarette smoke, we compared upper vs. lower lobe gene expression in the SAE within the same cigarette smokers to determine if the gene expression patterns were similar or different. Active smokers (n = 11) with early evidence of smoking-induced lung disease (normal spirometry but low diffusing capacity) underwent bronchoscopy and brushing of the upper and lower lobe SAE in order to compare upper vs lower lobe genome-wide and smoking-responsive gene expression by microarray. Cluster and principal component analysis demonstrated that, for each individual, the expression of the known SAE smoking-responsive genes were highly correlated in upper and lower lobe pairs, although, as expected, there were differences in the smoking-induced changes in gene expression from individual to individual. These observations support the concept that the heterogeneity observed among smokers in the anatomic distribution of smoking-induced disease are not secondary to the topographic differences in the effects of cigarette smoke on the airway epithelium.
| Original language | English |
|---|---|
| Article number | e72669 |
| Journal | PLoS One |
| Volume | 8 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 9 Sep 2013 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Medicine(all)
- Biochemistry, Genetics and Molecular Biology(all)
- Agricultural and Biological Sciences(all)
Cite this
High Correlation of the Response of Upper and Lower Lobe Small Airway Epithelium to Smoking. / Harvey, Ben Gary; Strulovici-Barel, Yael; Vincent, Thomas L.; Mezey, Jason G.; Raviram, Ramya; Gordon, Cynthia; Salit, Jacqueline; Tilley, Ann E.; Chung, Augustine; Sanders, Abraham; Crystal, Ronald.
In: PLoS One, Vol. 8, No. 9, e72669, 09.09.2013.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - High Correlation of the Response of Upper and Lower Lobe Small Airway Epithelium to Smoking
AU - Harvey, Ben Gary
AU - Strulovici-Barel, Yael
AU - Vincent, Thomas L.
AU - Mezey, Jason G.
AU - Raviram, Ramya
AU - Gordon, Cynthia
AU - Salit, Jacqueline
AU - Tilley, Ann E.
AU - Chung, Augustine
AU - Sanders, Abraham
AU - Crystal, Ronald
PY - 2013/9/9
Y1 - 2013/9/9
N2 - The distribution of lung disease induced by inhaled cigarette smoke is complex, depending on many factors. With the knowledge that the small airway epithelium (SAE) is the earliest site of smoking-induced lung disease, and that the SAE gene expression is likely sensitive to inhaled cigarette smoke, we compared upper vs. lower lobe gene expression in the SAE within the same cigarette smokers to determine if the gene expression patterns were similar or different. Active smokers (n = 11) with early evidence of smoking-induced lung disease (normal spirometry but low diffusing capacity) underwent bronchoscopy and brushing of the upper and lower lobe SAE in order to compare upper vs lower lobe genome-wide and smoking-responsive gene expression by microarray. Cluster and principal component analysis demonstrated that, for each individual, the expression of the known SAE smoking-responsive genes were highly correlated in upper and lower lobe pairs, although, as expected, there were differences in the smoking-induced changes in gene expression from individual to individual. These observations support the concept that the heterogeneity observed among smokers in the anatomic distribution of smoking-induced disease are not secondary to the topographic differences in the effects of cigarette smoke on the airway epithelium.
AB - The distribution of lung disease induced by inhaled cigarette smoke is complex, depending on many factors. With the knowledge that the small airway epithelium (SAE) is the earliest site of smoking-induced lung disease, and that the SAE gene expression is likely sensitive to inhaled cigarette smoke, we compared upper vs. lower lobe gene expression in the SAE within the same cigarette smokers to determine if the gene expression patterns were similar or different. Active smokers (n = 11) with early evidence of smoking-induced lung disease (normal spirometry but low diffusing capacity) underwent bronchoscopy and brushing of the upper and lower lobe SAE in order to compare upper vs lower lobe genome-wide and smoking-responsive gene expression by microarray. Cluster and principal component analysis demonstrated that, for each individual, the expression of the known SAE smoking-responsive genes were highly correlated in upper and lower lobe pairs, although, as expected, there were differences in the smoking-induced changes in gene expression from individual to individual. These observations support the concept that the heterogeneity observed among smokers in the anatomic distribution of smoking-induced disease are not secondary to the topographic differences in the effects of cigarette smoke on the airway epithelium.
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U2 - 10.1371/journal.pone.0072669
DO - 10.1371/journal.pone.0072669
M3 - Article
VL - 8
JO - PLoS One
JF - PLoS One
SN - 1932-6203
IS - 9
M1 - e72669
ER -