title: Radioligands for the PET imaging of metabotropic glutamate receptor subtype 5 (mGluR5).
abstract: Metabotropic glutamate receptors (mGluRs) are G-protein coupled receptors (GPCR), which activate intracellular secondary messenger systems when bound by the physiological ligand glutamate. Modulation of mGluR5s has potential for the treatment of variety of psychiatric and neurological diseases such as depression, anxiety, schizophrenia and Parkinson's disease. Positron emission tomography (PET) might offer the possibility to visualize the mGluR5 and present an interesting tool for studying this receptor-subtype under physiologic and pathologic conditions. In this review paper, emphasis is given to the radiosynthesis, in vitro and in vivo characterization of recently published mGluR5 PET tracers.
authors.affiliation: Center for Radiopharmaceutical Sciences of ETH, PSI and USZ, Department of Chemistry and Applied Biosciences, ETH Zurich, 8093 Zurich, Switzerland.
authors.forename: Linjing
authors.initials: L
authors.lastname: Mu
authors.forename: P August
authors.initials: PA
authors.lastname: Schubiger
authors.forename: Simon M
authors.initials: SM
authors.lastname: Ametamey
mesh_terms: D000818:Animals; D006801:Humans; D008024:Ligands; D015394:Molecular Structure; D049268:Positron-Emission Tomography; D064529:Receptor, Metabotropic Glutamate 5; D018094:Receptors, Metabotropic Glutamate / Q000032:analysis* / Q000037:antagonists & inhibitors / Q000378:metabolism*; D013237:Stereoisomerism
chemical_list: C578935:GRM5 protein, human; D008024:Ligands; D064529:Receptor, Metabotropic Glutamate 5; D018094:Receptors, Metabotropic Glutamate