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Journal of Translational Neuroscience    2016, Vol. 1 Issue (1) : 17-23
Phosphorylation of group I metabotropic glutamate receptors in drug addiction and translational research
Limin Mao, John Q Wang*
Department of Basic Medical Science, School of Medicine, University of Missouri-Kansas City, Kansas City, MO 64108, USA
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Abstract Protein phosphorylation is an important posttranslational modification of group I metabotropic glutamate receptors (mGluR1 and mGluR5 subtypes, mGluR1/5) which are widely distributed throughout the mammalian brain. Several common protein kinases are involved in this type of modification, including protein kinase A, protein kinase C, and extracellular signal-regulated kinase. Through constitutive and activity-dependent phosphorylation of mGluR1/5 at specific residues, protein kinases regulate trafficking, subcellular/subsynaptic distribution, and function of modified receptors. Increasing evidence demonstrates that mGluR1/5 phosphorylation in the mesolimbic reward circuitry is sensitive to chronic psychostimulant exposure and undergoes adaptive changes in its abundance and activity. These changes contribute to long-term excitatory synaptic plasticity related to the addictive property of drugs of abuse. The rapid progress in uncovering the neurochemical basis of addiction has fostered bench-to-bed translational research by targeting mGluR1/5 for developing effective pharmacotherapies for treating addiction in humans. This review summarizes recent data from the studies analyzing mGluR1/5 phosphorylation. Phosphorylation-dependent mechanisms in stimulant-induced mGluR1/5 and behavioral plasticity are also discussed in association with increasing interest in mGluR1/5 in translational medicine.
Keywords mGluR      PKA      PKC      MAPK      ERK      striatum      nucleus accumbens      G protein-coupled receptors     
Corresponding Author(s): *John Qiang Wang, E-mail:   
Issue Date: 14 October 2016
 Cite this article:   
Limin Mao, John Q Wang. Phosphorylation of group I metabotropic glutamate receptors in drug addiction and translational research[J]. Journal of Translational Neuroscience,2016, 1(1): 17-23.
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