Novel allosteric antagonists shed light on mglu(5) receptors and CNS disorders

Although multiple metabotropic glutamate (mglu) receptor subtypes were clon ed in the early 1990s, progress in the characterization of these receptors has been slow because of difficulties in obtaining subtype-selective ligand s. However, in the past few years exciting progress has been made on the mg lu, receptor subtype following the identification of selective non-amino-ac idlike ligands that implicate the mglu, receptor as a potentially important therapeutic target, particularly for the treatment of pain and anxiety.