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Fawaz, Maria V; Brooks, Allen F; Rodnick, Melissa E; Carpenter, Garrett M; Shao, Xia; Desmond, Timothy J; Sherman, Phillip; Quesada, Carole A; Hockley, Brian G; Kilbourn, Michael R; Albin, Roger L; Frey, Kirk A; Scott, Peter J. H
ACS chemical neuroscience, 2014-Aug-20, Letnik: 5, Številka: 8Journal Article
Abnormally aggregated tau is the hallmark pathology of tauopathy neurodegenerative disorders and is a target for development of both diagnostic tools and therapeutic strategies across the tauopathy disease spectrum. Development of carbon-11- or fluorine-18-labeled radiotracers with appropriate affinity and specificity for tau would allow noninvasive quantification of tau burden using positron emission tomography (PET) imaging. We have synthesized 18Flansoprazole, 11CN-methyl lansoprazole, and 18FN-methyl lansoprazole and identified them as high affinity radiotracers for tau with low to subnanomolar binding affinities. Herein, we report radiosyntheses and extensive preclinical evaluation with the aim of selecting a lead radiotracer for translation into human PET imaging trials. We demonstrate that 18FN-methyl lansoprazole, on account of the favorable half-life of fluorine-18 and its rapid brain entry in nonhuman primates, favorable kinetics, low white matter binding, and selectivity for binding to tau over amyloid, is the lead compound for progression into clinical trials.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Vir: Osebne bibliografije
in: SICRIS
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