Cited by 145Memory and Neural MechanismsMemory Processes and InfluencesSleep and Wakefulness Research

Protein degradation, as with protein synthesis, is required during not only long-term spatial memory consolidation but also reconsolidation

Artinian, Julien, McGauran, Anne‐Marie T., De Jaeger, Xavier, Mouledous, Lionel, Frances, Bernard, Roullet, Pascal·2008·European Journal of Neuroscience

Abstract

The formation of long-term memory requires protein synthesis, particularly during initial memory consolidation. This process also seems to be dependant upon protein degradation, particularly degradation by the ubiquitin-proteasome system. The aim of this study was to investigate the temporal requirement of protein synthesis and degradation during the initial consolidation of allocentric spatial learning. As memory returns to a labile state during reactivation, we also focus on the role of protein synthesis and degradation during memory reconsolidation of this spatial learning. Male CD1 mice were submitted to massed training in the spatial version of the Morris water maze. At various time intervals after initial acquisition or after a reactivation trial taking place 24 h after acquisition, mice received an injection of either the protein synthesis inhibitor anisomycin or the protein degradation inhibitor lactacystin. This injection was performed into the hippocampal CA3 region, which is specifically implicated in the processing of spatial information. Results show that, in the CA3 hippocampal region, consolidation of an allocentric spatial learning task requires two waves of protein synthesis taking place immediately and 4 h after acquisition, whereas reconsolidation requires only the first wave. However, for protein degradation, both consolidation and reconsolidation require only one wave, taking place immediately after acquisition or reactivation, respectively. These finding…

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Crossref · 10.1111/j.1460-9568.2008.06262.x

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  • Proteasome inhibitors impair one-trial avoidance learning, spatial learning, and aversive taste memory formation.

    “Early studies revealed impairments in one-trial avoidance learning, spatial learning, and aversive taste memory formation on treatment with proteasome inhibitors (Lopez-Salon et al., 2001; Artinian et al., 2008; Rodriguez-Ortiz et al., 2011).”
  • Memory destabilisation depends upon the ubiquitin- and proteasome-dependent degradation of pre-existing postsynaptic proteins, as shown for fear, spatial, object recognition, and drug memories.

    “Memory destabilisation depends upon the ubiquitin- and proteasome-dependent degradation of pre-existing postsynaptic proteins, as shown for fear (Lee et al., 2008; Fukushima et al., 2014; Fustiñana et al., 2014; Jarome et al., 2015; Orsi et al., 2019; Tay et al., 2019), spatial (Artinian et al., 2008), object recognition (Furini et al., 2015; Stiver et al., 2017) and drug memories (Ren et al., 201”

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Authors
Artinian, J., McGauran, A. T., De Jaeger, X., Mouledous, L., Frances, B., & Roullet, P.
Affiliations
Centre National de la Recherche Scientifique (FR)
Venue
European Journal of Neuroscience
Publisher
Wiley
Published
2008-06
Volume
27
Issue
11
Pages
3009-3019
ISSN
  • 0953-816X (ISSN-L)
  • 1460-9568
OpenAlex
W2117847158
Cited by
145
References
41
Citations by year
2026: 2 · 2025: 3 · 2024: 4 · 2023: 5 · 2022: 5 · 2021: 10 · 2020: 8 · 2019: 9 · 2018: 10 · 2017: 7 · 2016: 8 · 2015: 12 · 2014: 16 · 2013: 10 · 2012: 10
FWCI
4.49
Type
journal article
Language
en
Open access
closed
Locations
  • European Journal of Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
  • HAL (submittedVersion)
Funders
  • Agence Nationale de la Recherche
  • Centre National de la Recherche Scientifique
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory Processes and Influences
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Sleep and Wakefulness Research
Keywords
protein degradation, protein synthesis, memory consolidation, memory reconsolidation, spatial memory, ubiquitin-proteasome system, hippocampal CA3, anisomycin, lactacystin, memory reactivation, Morris water maze
MeSH terms
Acetylcysteine, Animals, Anisomycin, Hippocampus, Male, Memory, Nerve Tissue Proteins, Neurons, Protein Synthesis Inhibitors, Space Perception, Cysteine Proteinase Inhibitors, Long-Term Potentiation, Maze Learning, Mice

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