Cited by 41Stress Responses and CortisolNeurotransmitter Receptor Influence on BehaviorMemory and Neural Mechanisms

Maintenance of dominance status is necessary for resistance to social defeat stress in Syrian hamsters

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Morrison, Kathleen E., Bader, Lauren R., Clinard, Catherine T., Gerhard, Danielle M., Gross, Sonya E., Cooper, Matthew A.·2014·Behavioural Brain Research

Abstract

Resilience is an active process that involves a discrete set of neural substrates and cellular mechanisms and enables individuals to avoid some of the negative consequences of extreme stress. We have previously shown that dominant individuals show less stress-induced changes in behavior compared to subordinates using a conditioned defeat model in male Syrian hamsters (Mesocricetus auratus). To rule out pre-existing differences between dominants and subordinates, we examined whether 14 days of dominance experience is required to reduce the conditioned defeat response and whether the development of conditioned defeat resistance correlates with defeat-induced neural activation in select brain regions. We paired hamsters in daily 5-min aggressive encounters for 1, 7, or 14 days and then exposed animals to 3, 5-min social defeat episodes. The next day animals received conditioned defeat testing which involved a 5-min social interaction test with a non-aggressive intruder. In separate animals brains were collected after social defeat for c-Fos immunohistochemistry. We found that 14-day dominants showed a decreased conditioned defeat response compared to 14-day subordinates and controls, while 1-day and 7-day dominants did not differ from their subordinate counterparts. Also, the duration of dominance relationship was associated with distinct patterns of defeat-induced neural activation such that only 14-day dominants showed elevated c-Fos immunoreactivity in the ventral medial prefrontal cortex, medial amygdala, and lateral portions of the ventral medial hypothalamus. Our data suggest that resistance to social stress develops during the maintenance of dominance relationships and is associated with experience-dependent neural plasticity in select brain regions.

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Crossref · 10.1016/j.bbr.2014.05.041

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  • Transcriptional remodeling of the MeA occurs during social status transitions.

    “Further, our findings also support a role for transcriptional remodeling of the MeA occurring during social status transitions as has been suggested by immediate early gene studies of social ascending and descending A. burtoni cichlids [11] as well as socially defeated rats, Rattus norvegicus [46] and Syrian hamsters, Mesocricetus auratus [47].”

    From Rapid changes in plasma corticosterone and medial amygdala transcriptome profiles during social status change reveal molecular pathways associated with a major life history transition in mouse dominance hierarchies (2025) · cites this paper as [47]

    The Results (§3.4) report that defeat-induced c-Fos immunoreactivity in the vMeA differed by social status after 14 days, supporting the citing sentence’s reference to an immediate-early-gene study in Syrian hamsters. The paper measured c-Fos-positive cells after defeat, however; it did not directly measure transcriptional remodeling during a transition from one social status to another. (LLM, conf=0.83)

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Authors
Morrison, K. E., Bader, L. R., Clinard, C. T., Gerhard, D. M., Gross, S. E., & Cooper, M. A.
Affiliations
  • University of Pennsylvania (US)
  • University of Tennessee at Knoxville (US)
Corresponding author
Cooper, Matthew A.
Venue
Behavioural Brain Research
Publisher
Elsevier BV
Published
2014-08
Volume
270
Pages
277-286
ISSN
0166-4328 (ISSN-L)
OpenAlex
W2020411669
Cited by
41
References
71
Citations by year
2026: 2 · 2025: 6 · 2024: 3 · 2023: 4 · 2022: 2 · 2021: 5 · 2020: 3 · 2019: 2 · 2018: 3 · 2017: 4 · 2016: 6 · 2015: 1
FWCI
1.80
Type
journal article
Language
en
Open access
Locations
  • Behavioural Brain Research (publishedVersion)
  • PubMed (publishedVersion)
  • Research at the University of Copenhagen (University of Copenhagen) (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institutes of Health (R21 MH098190)
Topics
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
Keywords
social dominance, social defeat stress, resilience, golden hamster, c-fos, ventromedial prefrontal cortex, medial amygdala
MeSH terms
Aggression, Animals, Behavior, Animal, Brain, Conditioning, Psychological, Dominance-Subordination, Cricetinae, Immunohistochemistry, Male, Mesocricetus, Neuronal Plasticity, Social Behavior, Stress, Psychological, Ventromedial Hypothalamic Nucleus, Proto-Oncogene Proteins c-fos, Prefrontal Cortex, Central Amygdaloid Nucleus

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