Article
Quantum proteolysis by neutrophils: implications for pulmonary emphysema in alpha 1-antitrypsin deficiency.
The Journal of clinical investigation - 1 Aug 1999
Campbell E J, Campbell M A, Boukedes S S, Owen C A
Abstract excerpt
Traditional enzyme kinetics provide a poor explanation for the increased risk of lung injury in alpha 1-antitrypsin (AAT) deficiency. Millimolar concentrations of leukocyte elastase, when released from single azurophil granules of activated neutrophils, lead to evanescent quantum bursts of proteolytic activity before catalysis is quenched by pericellular inhibitors. Herein, we tested the possibility that quantum...
Topics
- Cytoplasmic Granules
- Endopeptidases
- Humans
- Hydrolysis
- Inflammation Mediators
- Isoelectric Focusing
- Models, Biological
- Neutrophil Activation
- Neutrophils
- Phenotype
- Pulmonary Emphysema
