Korean J Intern Med.  2015 Jan;30(1):62-72. 10.3904/kjim.2015.30.1.62.

Proteomic differences with and without ozone-exposure in a smoking-induced emphysema lung model

• Uh ST
• Koo SM
• Jang AS
• Park SW
• Choi JS
• Kim YH
• Park CS

• KMID: 2129665
• DOI: http://doi.org/10.3904/kjim.2015.30.1.62

Abstract

BACKGROUND/AIMS
Acute exacerbations in chronic obstructive pulmonary disease may be related to air pollution, of which ozone is an important constituent. In this study, we investigated the protein profiles associated with ozone-induced exacerbations in a smoking-induced emphysema model.
METHODS
Mice were divided into the following groups: group I, no smoking and no ozone (NS + NO); group II, no smoking and ozone (NS + O); group III, smoking and no ozone (S + NO); and group IV, smoking and ozone (S + O). Bronchoalveolar lavage, the mean linear intercept (MLI) on hematoxylin and eosin staining, nano-liquid chromatography-tandem mass spectrometry (LC-MS/MS), and Western blotting analyses were performed.
RESULTS
The MLIs of groups III (S + NO) and IV (S + O) (45 +/- 2 and 44 +/- 3 microm, respectively) were significantly higher than those of groups I (NS + NO) and II (NS + O) (26 +/- 2 and 23 +/- 2 microm, respectively; p < 0.05). Fourteen spots that showed significantly different intensities on image analyses of two-dimensional (2D) protein electrophoresis in group I (NS + NO) were identified by LC-MS/MS. The levels of six proteins were higher in group IV (S + O). The levels of vimentin, lactate dehydrogenase A, and triose phosphate isomerase were decreased by both smoking and ozone treatment in Western blotting and proteomic analyses. In contrast, TBC1 domain family 5 (TBC1D5) and lamin A were increased by both smoking and ozone treatment.
CONCLUSIONS
TBC1D5 could be a biomarker of ozone-induced lung injury in emphysema.

Keyword

Proteomics; Pulmonary disease, chronic obstructive; Ozone; Chromatography, liquid; Mass spectrometry

MeSH Terms

Animals
Biological Markers/metabolism
Blotting, Western
Bronchoalveolar Lavage Fluid/chemistry/cytology
Chromatography, Liquid
Disease Models, Animal
Electrophoresis, Gel, Two-Dimensional
Lung/*metabolism/pathology
Male
Mice, Inbred C57BL
*Ozone
Proteins/*metabolism
*Proteomics/methods
Pulmonary Disease, Chronic Obstructive/etiology/*metabolism/pathology
Pulmonary Emphysema/etiology/*metabolism/pathology
Smoking/*adverse effects
Tandem Mass Spectrometry
Biological Markers
Ozone
Proteins