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Background : Exacerbations of chronic obstructive pulmonary disease (COPD) are thought to be associated with increased airway inflammation, and the is known to be an indicator of cellular activation and of inflammatory mediator production. This study was undertaken to investigate the change of cytokine characteristics and activity in induced sputum of COPD patients during exacerbation and recovery of the disease. Methods : Sputum induction was performed in 37 patients with COPD during exacerbation and during recovery and in 15 healthy subjects. Cell counts, levels of IL-6, IL-8 and in induced sputum and NF-kB activity in macrophage of induced sputum were measured. Results : Patients with COPD showed significantly increased levels of IL-6, IL-8 and (p activity in induced sputum(p activity and levels of IL-6 and tended to be decreased during recovery, but not siginificantly. Conclusion : Activation of and increased levels of IL-6, IL-8 and were thought to be associated with pathogenesis and exacerbations of COPD.

Nuclear Factor-κB (NF-κB) Activity and Levels of IL-6, IL-8 and TNF-α in Induced Sputum in the Exacerbation and Recovery of COPD Patients