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Activation of N-methyl-D-aspartate-sensitive glutamate receptors stimulates arachidonic acid release in primary cultures of cerebellar granule cells
| Content Provider | Semantic Scholar |
|---|---|
| Author | Lazarewicz, Jerzy W. Wroblewski, Jarda T. Palmer, Malcolm Costa, Erminio |
| Copyright Year | 1988 |
| Abstract | In cultured granule cells prelabeled with [3H]arachidonate the activation of excitatory amino acid receptors by various agonists results in a dose-dependent stimulation of [3H]arachidonic acid release. Glutamate and aspartate were the most potent agonists, whereas N-methyl-D-aspartate, kainate and quisqualate were less potent. Other neurotransmitter receptor agonists-GABA, baclofen and norepinephrine-were inactive, while carbachol induced only a slight effect. Since the transmitter-mediated release of [3H]arachidonate was blocked by phencyclidine, a selective inhibitor of NMDA-sensitive glutamate receptors, it can be inferred that the effects of all other receptor agonists were indirectly mediated via the release of glutamate from granule cells. Aspartate-evoked release was Ca2+-dependent and was abolished by the glutamate receptor inhibitors: Mg2+ ions and 2-amino-5-phosphonovalerate. The inhibitors of phospholipase A2, quinacrine and p-bromophenacyl bromide, decreased the release of [3H]arachidonate in a dose-related manner. |
| Starting Page | 765 |
| Ending Page | 769 |
| Page Count | 5 |
| File Format | PDF HTM / HTML |
| DOI | 10.1016/0028-3908(88)90088-3 |
| PubMed reference number | 2843786 |
| Journal | Medline |
| Volume Number | 27 |
| Alternate Webpage(s) | https://api.elsevier.com/content/article/pii/0028390888900883 |
| Alternate Webpage(s) | https://www.sciencedirect.com/science/article/pii/0028390888900883?dgcid=api_sd_search-api-endpoint |
| Alternate Webpage(s) | https://doi.org/10.1016/0028-3908%2888%2990088-3 |
| Journal | Neuropharmacology |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |