The DOI matches its Crossref record; 77 of the 77 references it cites were found in a registry or an index.
Sustained Arc/Arg3.1 Synthesis Controls Long-Term Potentiation Consolidation through Regulation of Local Actin Polymerization in the Dentate Gyrus In Vivo
Open accessAbstract
New gene expression is necessary for long-term potentiation (LTP) consolidation, yet roles for specific activity-induced mRNAs have not been defined. Here we probed the dynamic function of activity-induced Arc (activity-regulated cytoskeletal-associated protein)/Arg3.1 (activity-regulated gene 3.1 protein homolog) mRNA using brief, local infusions of antisense (AS) oligodeoxynucleotides at multiple time points during dentate gyrus LTP in vivo. Surprisingly, early Arc synthesis is necessary for early expression of LTP, whereas sustained synthesis is required to generate stably modified synapses. AS application 2 h after LTP induction results in a rapid and permanent reversal of LTP. This reversal is associated with rapid knockdown of upregulated Arc, dephosphorylation of actin depolymerization factor/cofilin, and loss of nascent filamentous actin (F-actin) at synaptic sites. Infusion of the F-actin stabilizing drug jasplakinolide during LTP maintenance blocks the ability of AS to reverse LTP. These results couple activity-induced expression of Arc to expansion of the actin cytoskeleton underlying enduring LTP. Furthermore, Arc synthesis is required for both the induction and consolidation of LTP elicited by local BDNF infusion, thus identifying Arc as a key molecular effector of BDNF in synaptic plasticity.
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The mesolimbic dopamine reward circuit in depression
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Environment-specific expression of the immediate-early gene Arc in hippocampal neuronal ensembles
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Minichiello, L. (2009) · Nature Reviews Neuroscience · doi:10.1038/nrn2738 · Cited by 1,055
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Bramham, C. R., & Wells, D. G. (2007) · Nature Reviews Neuroscience · doi:10.1038/nrn2150 · Cited by 579
Self-citationNew views of Arc, a master regulator of synaptic plasticity
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Metadata
- Authors
- Messaoudi, E., Kanhema, T., Soulé, J., Tiron, A., Dagyte, G., da Silva, B., & Bramham, C. R.
- Venue
- The Journal of Neuroscience
- Publisher
- Society for Neuroscience
- Published
- 2007-09-26
- Volume
- 27
- Issue
- 39
- Pages
- 10445-10455
- ISSN
- 0270-6474 (ISSN-L)
- 1529-2401
- OpenAlex
- W2033026245
- Cited by
- 462
- References
- 77
- FWCI
- 9.79
- Type
- journal article
- Language
- en
- Open access
- hybrid
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- Messaoudi, E., Kanhema, T., Soulé, J., Tiron, A., Dagyte, G., da Silva, B., & Bramham, C. R. (2007). Sustained Arc/Arg3.1 Synthesis Controls Long-Term Potentiation Consolidation through Regulation of Local Actin Polymerization in the Dentate Gyrus In Vivo. The Journal of Neuroscience. https://doi.org/10.1523/jneurosci.2883-07.2007
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