Abstract
Over the last two decades, numerous attempts have been made to develop 11C- and 18F-labeled radiotracers in order to study glucocorticoid receptor (GR)-mediated abnormalities of the hypothalamus-pituitary-adrenocortical (HPA) axis function and regulation in vivo by means of positron emission tomography (PET). The present review addresses the research efforts dealing with the design, radiosynthesis and radiopharmacological evaluation of PET radiotracers for brain GR imaging. The underlying problems such as metabolic instability, insufficient blood-brain-barrier penetration and/or high non-specific binding will be discussed.
Keywords: Glucocorticoid receptor, PET, radioligands, carbon-11, fluorine-18
Mini-Reviews in Medicinal Chemistry
Title: Radiolabeled Glucocorticoids as Molecular Probes for Imaging Brain Glucocorticoid Receptors by Means of Positron Emission Tomography (PET)
Volume: 8 Issue: 7
Author(s): Bjorn Steiniger, Torsten Kniess, Ralf Bergmann, Jens Pietzsch and Frank R. Wuest
Affiliation:
Keywords: Glucocorticoid receptor, PET, radioligands, carbon-11, fluorine-18
Abstract: Over the last two decades, numerous attempts have been made to develop 11C- and 18F-labeled radiotracers in order to study glucocorticoid receptor (GR)-mediated abnormalities of the hypothalamus-pituitary-adrenocortical (HPA) axis function and regulation in vivo by means of positron emission tomography (PET). The present review addresses the research efforts dealing with the design, radiosynthesis and radiopharmacological evaluation of PET radiotracers for brain GR imaging. The underlying problems such as metabolic instability, insufficient blood-brain-barrier penetration and/or high non-specific binding will be discussed.
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Cite this article as:
Steiniger Bjorn, Kniess Torsten, Bergmann Ralf, Pietzsch Jens and Wuest R. Frank, Radiolabeled Glucocorticoids as Molecular Probes for Imaging Brain Glucocorticoid Receptors by Means of Positron Emission Tomography (PET), Mini-Reviews in Medicinal Chemistry 2008; 8 (7) . https://dx.doi.org/10.2174/138955708784567403
DOI https://dx.doi.org/10.2174/138955708784567403 |
Print ISSN 1389-5575 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-5607 |
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