Cited by 39Neurogenesis and neuroplasticity mechanismsOlfactory and Sensory Function StudiesMemory and Neural Mechanisms

Newborn neurons in the olfactory bulb selected for long-term survival through olfactory learning are prematurely suppressed when the olfactory memory is erased

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Sultan, Sébastien, Rey, Nolwen, Sacquet, Joelle, Mandairon, Nathalie, Didier, Anne·2011·The Journal of Neuroscience

Abstract

A role for newborn neurons in olfactory memory has been proposed based on learning-dependent modulation of olfactory bulb neurogenesis in adults. We hypothesized that if newborn neurons support memory, then they should be suppressed by memory erasure. Using an ecological approach in mice, we showed that behaviorally breaking a previously learned odor-reward association prematurely suppressed newborn neurons selected to survive during initial learning. Furthermore, intrabulbar infusions of the caspase pan-inhibitor ZVAD (benzyloxycarbonyl-Val-Ala-Asp) during the behavioral odor-reward extinction prevented newborn neurons death and erasure of the odor-reward association. Newborn neurons thus contribute to the bulbar network plasticity underlying long-term memory.

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Crossref · 10.1523/jneurosci.3677-11.2011

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  • Adult-born granule cells support flexible olfactory behaviors in adulthood.

    “while adult-born GCs are well-known to support flexible olfactory behaviors in adulthood [19,50–52]”

    From Positive early-life olfactory memory is rooted in the olfactory bulb and triggers large-scale changes beyond the olfactory system (2026) · cites this paper as [52]

    The Results and Discussion link adult-born neurons in the olfactory bulb’s granule cell layer to learned odor processing and long-term odor–reward memory in adult mice. That supports a role in an olfactory behavior, but the study does not establish that these cells support flexible olfactory behaviors generally. Passage-level page numbers are not available in our copy. (LLM, conf=0.84)

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Authors
Sultan, S., Rey, N., Sacquet, J., Mandairon, N., & Didier, A.
Affiliations
  • Lyon 1 Université (FR)
  • Université de Lyon (FR)
Venue
The Journal of Neuroscience
Published
2011-10-19
Volume
31
Issue
42
Pages
14893-14898
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W2013219165
Cited by
39
References
15
Citations by year
2026: 1 · 2025: 1 · 2024: 2 · 2023: 3 · 2021: 2 · 2019: 6 · 2018: 5 · 2016: 3 · 2015: 4 · 2014: 5 · 2013: 2 · 2012: 5
FWCI
1.26
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • HAL (submittedVersion, other-oa)
Topics
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Life Sciences › Neuroscience › Sensory Systems › Olfactory and Sensory Function Studies
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
Keywords
olfactory bulb, adult neurogenesis, newborn neurons, olfactory memory, memory erasure, caspase inhibition, zVAD, neuronal survival, network plasticity, long-term memory
MeSH terms
Analysis of Variance, Animals, Behavior, Animal, Bromodeoxyuridine, Cell Count, Conditioning, Psychological, Cues, Enzyme Inhibitors, Male, Mice, Inbred C57BL, Neurons, Odorants, Olfactory Bulb, Oligopeptides, Phosphopyruvate Hydratase, Photic Stimulation, Reaction Time, Retention, Psychology, Reward, Smell, Time Factors, Proto-Oncogene Proteins c-fos, Mice, Early Growth Response Protein 1, Neurogenesis

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