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Positron emission tomography for measurement of copper fluxes in live organisms
Author(s) -
Peng Fangyu
Publication year - 2014
Publication title -
annals of the new york academy of sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.712
H-Index - 248
eISSN - 1749-6632
pISSN - 0077-8923
DOI - 10.1111/nyas.12383
Subject(s) - copper , positron emission tomography , tomography , radioactive tracer , tracer , brain positron emission tomography , positron , nuclear medicine , positron emission , radiochemistry , chemistry , materials science , preclinical imaging , medicine , biology , physics , radiology , in vivo , nuclear physics , metallurgy , microbiology and biotechnology , electron
Copper is an essential nutrient for the physiology of live organisms, but excessive copper can be harmful. Copper radioisotopes are used for measurement of copper fluxes in live organisms using a radioactivity assay of body fluids or whole‐body positron emission tomography (PET). Hybrid positron emission tomography–computed tomography (PET/CT) is a versatile tool for real‐time measurement of copper fluxes combining the high sensitivity and quantification capability of PET and the superior spatial resolution of CT for anatomic localization of radioactive tracer activity. Kinetic analysis of copper metabolism in the liver and extrahepatic tissues of Atp7b −/− knockout mice, a mouse model of Wilson's disease, demonstrated the feasibility of measuring copper fluxes in live organisms with PET/CT using copper‐64 chloride ( 64 CuCl 2 ) as a radioactive tracer ( 64 CuCl 2 ‐PET/CT). 64 CuCl 2 ‐PET/CT holds potential as a useful tool for the diagnosis of inherited and acquired human copper metabolism disorders and for monitoring the effects of copper‐modulating therapy.