期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 -, 期 -, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202217508
关键词
Biocompatible Probes; Near-Infrared Fluorescence Imaging; Neutrophil Elastase; Photoacoustic Imaging
Neutrophil elastase (NE) is crucial in chronic inflammation and acute responses to infection and injury. However, structural changes of NE interfere with its detection. This study introduces a biocompatible molecular probe, achieved through theoretical calculations and experimental studies, allowing for highly specific and sensitive detection of NE in cells and in vivo. The upregulated NE accumulation in inflammation was measured using ratiometric photoacoustic and near-infrared fluorescence imaging, providing a new method for developing more specific fluorogenic probes for other enzymes.
Neutrophil elastase (NE) plays a key role in chronic inflammation and acute responses to infection and injury. Effective disease interventions thus call for precise identification of NE to aid the clinical treatment of such diseases. However, the detection process suffers from the interference of structural changes of NE. Herein, we introduce a molecular probe with high biocompatibility to overcome the interference, which was achieved by combining theoretical calculations and experimental studies, that permits highly specific and sensitive detection of NE in cells and in vivo. The upregulated NE accumulation was specifically measured in inflammation by ratiometric photoacoustic and near-infrared fluorescence imaging, providing a new method for developing more specific fluorogenic probes for other enzymes.
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