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. 2022:2463:153-161.
doi: 10.1007/978-1-0716-2160-8_11.

Tracking of NK Cells by Positron Emission Tomography Using 89Zr-Oxine Ex Vivo Cell Labeling

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Tracking of NK Cells by Positron Emission Tomography Using 89Zr-Oxine Ex Vivo Cell Labeling

Noriko Sato et al. Methods Mol Biol. 2022.

Abstract

A 89Zr-oxine ex vivo cell labeling method for tracking various cells by positron emission tomography (PET) imaging has recently been developed. 89Zr-oxine is synthesized from oxine and 89Zr-chloride, which was converted from 89Zr-oxalate, with neutralization. To track migration of natural killer (NK) cells in vivo in real time by PET imaging, NK cells are labeled with 89Zr-oxine ex vivo and infused to a recipient. The labeling is performed by mixing 89Zr-oxine solution to NK cell suspension at room temperature, followed by washing. Care should be taken to label the cells at optimal radioactivity doses that maintain their viability and functionality. 89Zr-oxine labeled NK cells can be tracked for their migration and distribution by PET/computed tomography imaging for at least 7 days. Of note, this protocol is applicable to other types of cells.

Keywords: 89Zr-oxine; Cell tracking; Natural killer cells; Positron emission tomography; Zirconium-89.

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