Published in:
Open Access
28-10-2022 | Positron Emission Tomography | Original Article
Detection of apoptosis by [18F]ML-10 after cardiac ischemia–reperfusion injury in mice
Authors:
Maximilian Fischer, Mathias J. Zacherl, Jessica Olivier, Simon Lindner, Steffen Massberg, Peter Bartenstein, Freba Grawe, Sibylle Ziegler, Matthias Brendel, Sebastian Lehner, Guido Boening, Andrei Todica
Published in:
Annals of Nuclear Medicine
|
Issue 1/2023
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Abstract
Objective
Myocardial infarction leads to ischemic heart disease and cell death, which is still a major obstacle in western society. In vivo imaging of apoptosis, a defined cascade of cell death, could identify myocardial tissue at risk.
Methods
Using 2-(5-[18F]fluoropentyl)-2-methyl-malonic acid ([18F]ML-10) in autoradiography and positron emission tomography (PET) visualized apoptosis in a mouse model of transient ligation of the left anterior descending (LAD) artery. 2-deoxy-2-[18F]fluoro-D-glucose ([18F]FDG) PET imaging indicated the defect area. Terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) histology stain indicated cardiac apoptosis.
Results
[18F]ML-10 uptake was evident in the ischemic area after transient LAD ligation in ex vivo autoradiography and in vivo PET imaging. Detection of [18F]ML-10 is in line with the defect visualized by [18F]FDG and the histological approach of TUNEL staining.
Conclusion
The tracer [18F]ML-10 is suitable for detecting apoptosis after transient LAD ligation in mice.