Document Detail

Impact of acute exposure to tobacco smoke on gelatinases in the bronchoalveolar space.
MedLine Citation:
PMID:  18417512     Owner:  NLM     Status:  MEDLINE    
Clinical studies have indicated increased gelatinase activity in the airways of patients suffering from chronic obstructive pulmonary disease caused by tobacco smoke. The present study aimed to determine whether acute exposure to tobacco smoke per se causes a substantial and lasting impact on gelatinases and their inhibitors in the peripheral airways of atopic and nonatopic human subjects. Bronchoscopy with bronchoalveolar lavage (BAL) was performed on occasional smokers with and without atopy before and after smoking 10 cigarettes over a 48-h period. Samples from a group of never-smokers not exposed to tobacco smoke served as controls. Gelatinase identity and activity were measured using zymography, and gelatinase activity assay and concentrations of matrix metalloproteinase (MMP)-2, MMP-9, tissue inhibitor of MMP (TIMP)-1 and TIMP-2 were measured using ELISA. The results revealed no pronounced changes in identity, net activity or concentration of the gelatinases or changes in concentrations of TIMP-1 and TIMP-2 in BAL fluid before and after acute exposure to tobacco smoke. In conclusion, the present experimental study indicates that acute exposure to tobacco smoke does not cause any substantial impact on gelatinases or their inhibitors in the peripheral airways, irrespective of atopy status, a finding that is compatible with the fact that it takes many years of tobacco smoking to establish chronic obstructive pulmonary disease.
P Glader; B Eldh; S Bozinovski; K Andelid; M Sjöstrand; C Malmhäll; G P Anderson; G C Riise; I Qvarfordt; A Lindén
Publication Detail:
Type:  Journal Article     Date:  2008-04-16
Journal Detail:
Title:  The European respiratory journal     Volume:  32     ISSN:  1399-3003     ISO Abbreviation:  Eur. Respir. J.     Publication Date:  2008 Sep 
Date Detail:
Created Date:  2008-09-01     Completed Date:  2009-01-13     Revised Date:  2013-05-23    
Medline Journal Info:
Nlm Unique ID:  8803460     Medline TA:  Eur Respir J     Country:  Switzerland    
Other Details:
Languages:  eng     Pagination:  644-50     Citation Subset:  IM    
Lung Immunology Group, Dept of Internal Medicine/Respiratory Medicine and Allergology, Sahlgrenska Academy, University of Gothenburg, Göteborg, Sweden.
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MeSH Terms
Bronchoalveolar Lavage Fluid / chemistry*
Gelatinases / drug effects
Matrix Metalloproteinase 2 / drug effects
Matrix Metalloproteinase 9 / drug effects
Smoking / adverse effects*
Tissue Inhibitor of Metalloproteinase-1 / drug effects
Tissue Inhibitor of Metalloproteinase-2 / drug effects
Reg. No./Substance:
0/Tissue Inhibitor of Metalloproteinase-1; 127497-59-0/Tissue Inhibitor of Metalloproteinase-2; EC 3.4.24.-/Gelatinases; EC Metalloproteinase 2; EC Metalloproteinase 9

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