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. Author manuscript; available in PMC: 2015 Jun 24.
Published in final edited form as: Eur Respir J. 2010 Sep 3;37(5):1083–1090. doi: 10.1183/09031936.00073710

FIGURE 4.

FIGURE 4

Recombinant SerpinB1 (rSerpinB1) inhibits endogenous elastase in cystic fibrosis (CF) bronchoalveolar lavage fluid (BALF). a) Neutrophil elastase, or elastase-positive BALF b) CF 32 or c) CF 33 (all containing 500 ng of elastase activity), were allowed to react with varying amounts of rSerpinB1 in a 50-μL reaction for 5 min, and remaining elastase activity was assayed. Results are the average of duplicate assays. CF-32 and CF-33 BALF contain 15.8 and 34.3 μg·mL1 active elastase, respectively.