Proteinase 3 activity in sputum from subjects with alpha-1-antitrypsin deficiency and COPD.

Abstract excerpt

Chronic obstructive pulmonary disease (COPD) is associated with tissue damage believed to result from an imbalance between serine proteinases and their inhibitors. Although the role of neutrophil elastase (NE) has been studied, it is likely that other proteinases play a role. The importance of proteinase 3 (PR3) has not been established, as specific substrates have only recently been available. We studied...

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