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Enzyme Activity-Based Optical Probe: Imaging Aminopeptidases N in Vulnerable Plaque and Serum
Jia-Xi Shen1, Rui Guo2, Miao-Yan Wang3
1Department of Cardiology, First Affiliated Hospital of Ningbo University (Ningbo First Hospital), School of Medicine, Ningbo University, Ningbo 315211, China.
Analytical Chemistry
|October 23, 2024
Summary
Researchers developed HD-APN, an optical probe for imaging aminopeptidases N (APN) in vivo. This tool specifically monitors APN levels in plaques and serum, offering a new approach for cardiovascular disease research.
Area of Science:
- Biomedical imaging
- Cardiovascular research
- Biomarker development
Background:
- Cardiovascular disease involves arterial wall pathology and vulnerable plaque formation.
- Aminopeptidases N (APN) play a key role in plaque development and are linked to endothelial dysfunction.
- Existing APN detection methods lack sensitivity, specificity, and real-time plaque activity monitoring.
Purpose of the Study:
- To develop a novel optical probe for in vivo imaging of aminopeptidases.
- To assess the probe's utility for monitoring APN in cardiovascular disease contexts.
- To overcome limitations of current APN detection techniques.
Main Methods:
- Development of an optical probe, designated HD-APN.
- In vivo imaging of aminopeptidase activity.
- Application of the probe for monitoring APN levels in plaques and serum.
Main Results:
- The HD-APN probe demonstrated applicability for specific in vivo imaging of aminopeptidases.
- Successful monitoring of aminopeptidase levels was achieved in both plaques and serum.
- The probe shows potential for real-time assessment of enzyme activity in cardiovascular disease.
Conclusions:
- HD-APN is a viable optical probe for in vivo aminopeptidase imaging.
- The probe enables specific monitoring of APN in cardiovascular disease.
- HD-APN offers a promising tool for advancing cardiovascular disease research and diagnostics.
