Experience-Induced Arc/Arg3.1 Primes CA1 Pyramidal Neurons for Metabotropic Glutamate Receptor-Dependent Long-Term Synaptic Depression

Jakkamsetti, Vikram, Tsai, Nien-Pei, Gross, Christina, Molinaro, Gemma, Collins, Katie A, Nicoletti, Ferdinando, Wang, Kuan H, Osten, Pavel, Bassell, Gary J, Gibson, Jay R, Huber, Kimberly M (October 2013) Experience-Induced Arc/Arg3.1 Primes CA1 Pyramidal Neurons for Metabotropic Glutamate Receptor-Dependent Long-Term Synaptic Depression. Neuron, 80 (1). pp. 72-79. ISSN 0896-6273

URL: http://www.ncbi.nlm.nih.gov/pubmed/24094104

DOI: 10.1016/j.neuron.2013.07.020

Abstract

Summary A novel experience induces the Arc/Arg3.1 gene as well as plasticity of CA1 neural networks. To understand how these are linked, we briefly exposed GFP reporter mice of Arc transcription to a novel environment. Excitatory synaptic function of CA1 neurons with recent in vivo Arc induction (ArcGFP+) was similar to neighboring noninduced neurons. However, in response to group 1 metabotropic glutamate receptor (mGluR) activation, ArcGFP+ neurons preferentially displayed long-term synaptic depression (mGluR-LTD) and robust increases in dendritic Arc protein. mGluR-LTD in ArcGFP+ neurons required rapid protein synthesis and Arc, suggesting that dendritic translation of Arc underlies the priming of mGluR-LTD. In support of this idea, novelty exposure increased Arc messenger RNA in CA1 dendrites and promoted mGluR-induced translation of Arc in hippocampal synaptoneurosomes. Repeated experience suppressed synaptic transmission onto ArcGFP+ neurons and occluded mGluR-LTD ex vivo. mGluR-LTD priming in neurons with similar Arc activation history may contribute to encoding a novel environment.

Item Type:	Paper
Subjects:	organs, tissues, organelles, cell types and functions > cell types and functions > cell types organs, tissues, organelles, cell types and functions > cell types and functions > cell types organs, tissues, organelles, cell types and functions > cell types and functions > cell types organs, tissues, organelles, cell types and functions > cell types and functions bioinformatics > genomics and proteomics > genetics & nucleic acid processing > protein structure, function, modification > protein types > glutamate receptor organs, tissues, organelles, cell types and functions > cell types and functions > cell types > neurons organs, tissues, organelles, cell types and functions > cell types and functions > cell types > neurons organs, tissues, organelles, cell types and functions > cell types and functions > cell types > neurons bioinformatics > genomics and proteomics > genetics & nucleic acid processing > protein structure, function, modification > protein types organs, tissues, organelles, cell types and functions > cell types and functions > cell types > neurons > pyramidal neurons organs, tissues, organelles, cell types and functions > cell types and functions > cell types > neurons > pyramidal neurons organs, tissues, organelles, cell types and functions > cell types and functions > cell types > neurons > pyramidal neurons organs, tissues, organelles, cell types and functions > cell types and functions > cell functions > synaptic transmission
CSHL Authors:	Osten, Pavel
Communities:	CSHL labs > Osten lab
Depositing User:	Matt Covey
Date:	2 October 2013
Date Deposited:	15 Oct 2013 20:39
Last Modified:	19 Jul 2021 13:51
PMCID:	PMC3801421
Related URLs:	Publisher
URI:	https://repository.cshl.edu/id/eprint/28639

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