scholarly journals Activator protein-1 responsive to the group II metabotropic glutamate receptor subtype in association with intracellular calcium in cultured rat cortical neurons

2007 ◽  
Vol 51 (8) ◽  
pp. 467-475 ◽  
Author(s):  
Chie Sugiyama ◽  
Noritaka Nakamichi ◽  
Masato Ogura ◽  
Eriko Honda ◽  
Sayaka Maeda ◽  
...  
Keyword(s):  
Intracellular Calcium ◽  
Glutamate Receptor ◽  
Cortical Neurons ◽  
Metabotropic Glutamate Receptor ◽  
Receptor Subtype ◽  
Activator Protein 1 ◽  
Metabotropic Glutamate ◽  
Activator Protein ◽  
Rat Cortical Neurons ◽  
Group Ii

scholarly journals Group II metabotropic glutamate receptor expressing neurons in anterior cingulate cortex become sensitized after inflammatory and neuropathic pain

2020 ◽  
Vol 16 ◽  
pp. 174480692091533
Author(s):  
Sisi Chen ◽  
Feni Kadakia ◽  
Steve Davidson
Keyword(s):  
Neuropathic Pain ◽  
Anterior Cingulate Cortex ◽  
Glutamate Receptor ◽  
Inflammatory Pain ◽  
Metabotropic Glutamate Receptor ◽  
Cingulate Cortex ◽  
Anterior Cingulate ◽  
Receptor Subtype ◽  
Metabotropic Glutamate ◽  
Group Ii

The anterior cingulate cortex is a limbic region associated with the emotional processing of pain. How neuropathic and inflammatory pain models alter the neurophysiology of specific subsets of neurons in the anterior cingulate cortex remains incompletely understood. Here, we used a GRM2Cre:tdtomato reporter mouse line to identify a population of pyramidal neurons selectively localized to layer II/III of the murine anterior cingulate cortex. GRM2encodes the group II metabotropic glutamate receptor subtype 2 which possesses analgesic properties in mouse and human models, although its function in the anterior cingulate cortex is not known. The majority of GRM2-tdtomato anterior cingulate cortex neurons expressed GRM2gene product in situ but did not overlap with cortical markers of local inhibitory interneurons, parvalbumin or somatostatin. Physiological properties of GRM2-tdtomato anterior cingulate cortex neurons were investigated using whole-cell patch clamp techniques in slice from animals with neuropathic or inflammatory pain, and controls. After hind-paw injection of Complete Freund’s Adjuvant or chronic constriction injury, GRM2-tdtomato anterior cingulate cortex neurons exhibited enhanced excitability as measured by an increase in the number of evoked action potentials and a decreased rheobase. This hyperexcitability was reversed pharmacologically by bath application of the metabotropic glutamate receptor subtype 2 agonist (2R, 4R)-4-Aminopyrrolidine-2,4-dicarboxylate APDC (1 µM) in both inflammatory and neuropathic models. We conclude that layer II/III pyramidal GRM2-tdtomato anterior cingulate cortex neurons express functional group II metabotropic glutamate receptors and undergo changes to membrane biophysical properties under conditions of inflammatory and neuropathic pain.

Alcohol Addiction- Metabotropic Glutamate Receptor Subtype 5 and its Ligands: How They All Come Together?

2018 ◽  
Vol 19 (8) ◽  
pp. 907-915 ◽  
Author(s):  
Jaya Kumar ◽  
Zalina Ismail ◽  
Nurul Hazwani Hatta ◽  
Najwa Baharuddin ◽  
Hermizi Hapidin ◽  
...  
Keyword(s):  
Glutamate Receptor ◽  
Metabotropic Glutamate Receptor ◽  
Alcohol Addiction ◽  
Receptor Subtype ◽  
Metabotropic Glutamate
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