Cited by 69Neuroscience and Neuropharmacology ResearchStress Responses and CortisolTreatment of Major Depression

Regional differences in dendritic spine density confer resilience to chronic social defeat stress

Qu, Youge, Yang, Chun, Ren, Qian, Ma, Min, Dong, Chao, Hashimoto, Kenji·2018·Acta Neuropsychiatrica

Abstract

Objective: Although alterations in the dendritic spine density in the brain regions may play a role in the stress-induced depression-like phenotype, the precise mechanisms are unknown. The aim was to investigate the role of spine density in the brain regions after chronic social defeat stress (CSDS). Methods: We examined dendritic spine density in the medial prefrontal cortex (mPFC), CA1, CA3, dentate gyrus (DG) of hippocampus, nucleus accumbens (NAc), and ventral tegmental area (VTA) of susceptible and resilient mice after CSDS. Results: Spine density in the prelimbic area of mPFC, CA3, and DG in the susceptible group, but not resilient group, was significantly lower than control group. In contrast, spine density in the NAc and VTA in the susceptible group, but not resilient group, was significantly higher than control group. Conclusions: The results suggest that regional differences in spine density may contribute to resilience versus susceptibility in mice subjected to CSDS.

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Crossref · 10.1017/neu.2017.16

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27 of 27 references verified0 citation errors · 0 not checkable

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  • Cortical neuron atrophy and dysfunction is observed in rodents following chronic corticosterone administration, chronic unpredictable mild stress, chronic restraint stress, and chronic social defeat stress.

    “Cortical neuron atrophy and dysfunction is observed in rodents following chronic corticosterone administration (121), chronic unpredictable mild stress (122, 123), chronic restraint stress (48, 49, 124, 125), and chronic social defeat stress (126–128).”
  • Dendritic spine density is increased in the ventral tegmental area of chronic social defeat stress-susceptible mice.

    “Dendritic spine density, a proxy for excitatory synapse density and activity, is also increased in the VTA of CSDS-susceptible mice [33].”

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Authors
Qu, Y., Yang, C., Ren, Q., Ma, M., Dong, C., & Hashimoto, K.
Affiliations
Chiba University (JP)
Corresponding author
Hashimoto, Kenji
Venue
Acta Neuropsychiatrica
Published
2017-06-01
Volume
30
Issue
2
Pages
117-122
ISSN
  • 0924-2708 (ISSN-L)
  • 1601-5215
OpenAlex
W2621277799
Cited by
68
References
27
Citations by year
2026: 4 · 2025: 9 · 2024: 6 · 2023: 8 · 2022: 10 · 2021: 10 · 2020: 5 · 2019: 11 · 2018: 5
FWCI
2.81
Type
journal article
Language
en
Open access
closed
Locations
  • Acta Neuropsychiatrica (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Health Sciences › Medicine › Pharmacology › Treatment of Major Depression
Keywords
dendritic spine density, chronic social defeat stress, resilience, depression-like behavior, medial prefrontal cortex, hippocampus, nucleus accumbens, ventral tegmental area, CA3, dentate gyrus, stress-induced depression
MeSH terms
Animals, Brain, Male, Mice, Inbred C57BL, Social Behavior, Stress, Psychological, Dendritic Spines, Resilience, Psychological

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