Spatially Resolved Monitoring of Neutrophil Elastase Activity with Ratiometric Fluorescent Reporters

Abstract

Finding NEmo: In a mouse model for lung inflammation, the lipidated peptide-based ratiometric fluorescent reporter NEmo-2 indicates that neutrophil elastase (NE) activity is mainly associated with the surface of neutrophils (see scheme), whereas a soluble reporter variant showed no activity in the lung fluid, likely because of the abundance of antiproteases. Targeting the localization of NE activity has great potential for the development of improved antiinflammatory drugs. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.