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Journal Article

Labeling of macrophages using bacterial magnetosomes and their characterization by magnetic resonance imaging

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Schüler,  D.
Department of Microbiology, Max Planck Institute for Marine Microbiology, Max Planck Society;

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Lang,  C.
Department of Microbiology, Max Planck Institute for Marine Microbiology, Max Planck Society;

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Citation

Hartung, A., Lisy, M. R., Herrmann, K. H., Hilger, I., Schüler, D., Lang, C., et al. (2007). Labeling of macrophages using bacterial magnetosomes and their characterization by magnetic resonance imaging. Journal of Magnetism and Magnetic Materials, 311(1), 454-459.


Cite as: http://hdl.handle.net/21.11116/0000-0001-CE78-1
Abstract
This work investigated macrophages labeled with magnetosomes for the possible detection of inflammations by MR molecular imaging. Pure magnetosomes and macrophages containing magnetosomes were analyzed using a clinical 1.5 T MR-scanner. Relaxivities of magnetosomes and relaxation rates of cells containing magnetosomes were determined. Peritonitis was induced in two mice. T1, T2 and T2* weighted images were acquired following injection of the probes. Pure magnetosomes and labeled cells showed slight effects on T1, but strong effects on T2 and T2* images. Labeled macrophages were located with magnetic resonance imaging (MRI) in the colon area, thus demonstrating the feasibility of the proposed approach.