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Current Medicinal Chemistry


ISSN (Print): 0929-8673
ISSN (Online): 1875-533X

PET Radiotracers for Molecular Imaging of Serotonin 5-HT1A Receptors

Author(s): T. Billard, D. Le Bars and L. Zimmer

Volume 21, Issue 1, 2014

Page: [70 - 81] Pages: 12

DOI: 10.2174/09298673113209990215

Price: $65


Serotonin and its various receptors are involved in numerous brain functions and neuropsychiatric disorders. The 5-HT1A family is the best characterized subtype of the fourteen currently known 5-HT receptors. The 5-HT1A receptor is closely involved in the pathogenesis of anxiety, depression, epilepsy and eating disorders and therefore is an important target for drug therapy. The development in the 1980s of molecules specifically targeting this receptor was followed by the rapid development of corresponding PET neuroimaging. Because this receptor represents a crucial target in neuroscience, a large number of radioligands have been developed by academic and industry centers for visualization and quantification, first in living animals and ultimately in humans. After a brief account of some of the structural and functional characteristics of brain 5-HT1A receptors, this review focuses on the main lines of evolutionopened up by preclinical and clinical 5-HT1A PET radiopharmaceuticals, illustrating the potential value of PET for clinical research and drug development.

Keywords: Agonist, antagonist, neurotransmission, positron emission tomography, radiopharmaceutical, 5-HT1A receptor.

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