Activation of mGluR5 Induces Rapid and Long-Lasting Protein Kinase D Phosphorylation in Hippocampal Neurons

Metabotropic glutamate receptors (mGluRs), including mGluR5, play a central role in regulating the strength and plasticity of synaptic connections in the brain. However, the signaling pathways that connect mGluRs to their downstream effectors are not yet fully understood. Here, we report that stimul...

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Main Authors: Krueger, Dilja, Osterweil, Emily, Bear, Mark
其他作者: Massachusetts Institute of Technology. Department of Brain and Cognitive Sciences
格式: 文件
语言:en_US
出版: Springer Science + Business Media 2012
在线阅读:http://hdl.handle.net/1721.1/69224
https://orcid.org/0000-0003-0582-2284
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author Krueger, Dilja
Osterweil, Emily
Bear, Mark
author2 Massachusetts Institute of Technology. Department of Brain and Cognitive Sciences
author_facet Massachusetts Institute of Technology. Department of Brain and Cognitive Sciences
Krueger, Dilja
Osterweil, Emily
Bear, Mark
author_sort Krueger, Dilja
collection MIT
description Metabotropic glutamate receptors (mGluRs), including mGluR5, play a central role in regulating the strength and plasticity of synaptic connections in the brain. However, the signaling pathways that connect mGluRs to their downstream effectors are not yet fully understood. Here, we report that stimulation of mGluR5 in hippocampal cultures and slices results in phosphorylation of protein kinase D (PKD) at the autophosphorylation site Ser-916. This phosphorylation event occurs within 30 s of stimulation, persists for at least 24 h, and is dependent on activation of phospholipase C and protein kinase C. Our data suggest that activation of PKD may represent a novel signaling pathway linking mGluR5 to its downstream targets. These findings have important implications for the study of the molecular mechanisms underlying mGluR-dependent synaptic plasticity.
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spelling mit-1721.1/692242022-09-26T11:24:19Z Activation of mGluR5 Induces Rapid and Long-Lasting Protein Kinase D Phosphorylation in Hippocampal Neurons Krueger, Dilja Osterweil, Emily Bear, Mark Massachusetts Institute of Technology. Department of Brain and Cognitive Sciences Picower Institute for Learning and Memory Bear, Mark Bear, Mark Krueger, Dilja Osterweil, Emily Metabotropic glutamate receptors (mGluRs), including mGluR5, play a central role in regulating the strength and plasticity of synaptic connections in the brain. However, the signaling pathways that connect mGluRs to their downstream effectors are not yet fully understood. Here, we report that stimulation of mGluR5 in hippocampal cultures and slices results in phosphorylation of protein kinase D (PKD) at the autophosphorylation site Ser-916. This phosphorylation event occurs within 30 s of stimulation, persists for at least 24 h, and is dependent on activation of phospholipase C and protein kinase C. Our data suggest that activation of PKD may represent a novel signaling pathway linking mGluR5 to its downstream targets. These findings have important implications for the study of the molecular mechanisms underlying mGluR-dependent synaptic plasticity. Howard Hughes Medical Institute FRAXA Research Foundation National Institute of Mental Health (U.S.) Eunice Kennedy Shriver National Institute of Child Health and Human Development (U.S.) 2012-02-28T16:03:05Z 2012-02-28T16:03:05Z 2010-09 2010-01 Article http://purl.org/eprint/type/JournalArticle 0895-8696 1559-1166 http://hdl.handle.net/1721.1/69224 Krueger, Dilja D., Emily K. Osterweil, and Mark F. Bear. “Activation of mGluR5 Induces Rapid and Long-Lasting Protein Kinase D Phosphorylation in Hippocampal Neurons.” Journal of Molecular Neuroscience 42.1 (2010): 1–8. https://orcid.org/0000-0003-0582-2284 en_US http://dx.doi.org/10.1007/s12031-010-9338-9 Journal of Molecular Neuroscience Creative Commons Attribution-Noncommercial-Share Alike 3.0 http://creativecommons.org/licenses/by-nc-sa/3.0/ application/pdf Springer Science + Business Media PubMed Central
spellingShingle Krueger, Dilja
Osterweil, Emily
Bear, Mark
Activation of mGluR5 Induces Rapid and Long-Lasting Protein Kinase D Phosphorylation in Hippocampal Neurons
title Activation of mGluR5 Induces Rapid and Long-Lasting Protein Kinase D Phosphorylation in Hippocampal Neurons
title_full Activation of mGluR5 Induces Rapid and Long-Lasting Protein Kinase D Phosphorylation in Hippocampal Neurons
title_fullStr Activation of mGluR5 Induces Rapid and Long-Lasting Protein Kinase D Phosphorylation in Hippocampal Neurons
title_full_unstemmed Activation of mGluR5 Induces Rapid and Long-Lasting Protein Kinase D Phosphorylation in Hippocampal Neurons
title_short Activation of mGluR5 Induces Rapid and Long-Lasting Protein Kinase D Phosphorylation in Hippocampal Neurons
title_sort activation of mglur5 induces rapid and long lasting protein kinase d phosphorylation in hippocampal neurons
url http://hdl.handle.net/1721.1/69224
https://orcid.org/0000-0003-0582-2284
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