TY - JOUR
T1 - Quantitative assessment of lipoprotein metabolism by positron emission tomography with an 18F-containing residualizing label
AU - Daugherty, Alan
AU - Kilbourn, Michael R.
AU - Dence, Carmen S.
AU - Sobel, Burton E.
AU - Thorpe, Suzanne R.
N1 - Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.
PY - 1992/4
Y1 - 1992/4
N2 - Residualizing labels for proteins are designed to remain entrapped within cells following uptake and degradation of the carrier protein. In the present work we report the synthesis of a novel residualizing label, N-lactitol-S-([18F]fluorophenacyl)-cysteamine ([18F]LCSH, and its use for quantifying the accumulation of low density lipoprotein in tissues in vivo by positron emission tomography (PET). The retention of degradation products in tissues from lipoprotein or from other rapidly catabolized protein pharmaceuticals tagged with [18F]LCSH reduces leakage of tracer into the plasma compartment. Thus, residualizing labels provide a valuable tool for enhancing signal-to-noise ratios, even during the relatively short interval of PET studies.
AB - Residualizing labels for proteins are designed to remain entrapped within cells following uptake and degradation of the carrier protein. In the present work we report the synthesis of a novel residualizing label, N-lactitol-S-([18F]fluorophenacyl)-cysteamine ([18F]LCSH, and its use for quantifying the accumulation of low density lipoprotein in tissues in vivo by positron emission tomography (PET). The retention of degradation products in tissues from lipoprotein or from other rapidly catabolized protein pharmaceuticals tagged with [18F]LCSH reduces leakage of tracer into the plasma compartment. Thus, residualizing labels provide a valuable tool for enhancing signal-to-noise ratios, even during the relatively short interval of PET studies.
UR - http://www.scopus.com/inward/record.url?scp=44049121734&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=44049121734&partnerID=8YFLogxK
U2 - 10.1016/0883-2897(92)90127-K
DO - 10.1016/0883-2897(92)90127-K
M3 - Article
C2 - 1629030
AN - SCOPUS:44049121734
SN - 0883-2897
VL - 19
SP - 411-413,415-416
JO - International Journal of Radiation Applications and Instrumentation.
JF - International Journal of Radiation Applications and Instrumentation.
IS - 3
ER -