Cited by 55Neurotransmitter Receptor Influence on BehaviorNeuroendocrine regulation and behaviorStress Responses and Cortisol

Sex differences in effects of dopamine D1 receptors on social withdrawal

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Campi, Katharine L., Greenberg, Gian D., Kapoor, Amita, Ziegler, Toni E., Trainor, Brian C.·2014·Neuropharmacology

Abstract

Dopamine signaling in the nucleus accumbens (NAc) plays a critical role in the regulation of motivational states. Recent studies in male rodents show that social defeat stress increases the activity of ventral tegmental dopamine neurons projecting to the NAc, and that this increased activity is necessary for stress-induced social withdrawal. Domestic female mice are not similarly aggressive, which has hindered complementary studies in females. Using the monogamous California mouse (Peromyscus californicus), we found that social defeat increased total dopamine, DOPAC, and HVA content in the NAc in both males and females. These results are generally consistent with previous studies in Mus, and suggest defeat stress also increases NAc dopamine signaling in females. However, these results do not explain our previous observations that defeat stress induces social withdrawal in female but not male California mice. Pharmacological manipulations provided more insights. When 500 ng of the D1 agonist SKF38393 was infused in the NAc shell of females that were naïve to defeat, social interaction behavior was reduced. This same dose of SKF38393 had no effect in males, suggesting that D1 receptor activation is sufficient to induce social withdrawal in females but not males. Intra-accumbens infusion of the D1 antagonist SCH23390 increased social approach behavior in females exposed to defeat but not in females naïve to defeat. This result suggests that D1 receptors are necessary for defeat-induced social withdrawal. Overall, our results suggest that sex differences in molecular pathways that are regulated by D1 receptors contribute to sex differences in social withdrawal behavior.

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Authors
Campi, K. L., Greenberg, G. D., Kapoor, A., Ziegler, T. E., & Trainor, B. C.
Affiliations
  • University of California, Davis (US)
  • University of Wisconsin–Madison (US)
Corresponding author
Trainor, Brian C.
Venue
Neuropharmacology
Publisher
Elsevier BV
Published
2014-02
Volume
77
Pages
208-216
ISSN
0028-3908 (ISSN-L)
OpenAlex
W2078878511
Cited by
55
References
54
Citations by year
2026: 2 · 2025: 2 · 2024: 3 · 2023: 6 · 2022: 2 · 2021: 8 · 2020: 3 · 2018: 4 · 2017: 4 · 2016: 8 · 2015: 6 · 2014: 6 · 2012: 1
FWCI
3.27
Type
journal article
Language
en
Open access
Locations
  • Neuropharmacology (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
  • Scholar Commons (Santa Clara University) (submittedVersion)
Funders
NIH (NCRR000167, R21 MH090391, R01 MH097714)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Social Sciences › Psychology › Social Psychology › Neuroendocrine regulation and behavior
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
Keywords
dopamine D1 receptor, social withdrawal, social defeat stress, sex differences, nucleus accumbens, Peromyscus californicus, DOPAC, homovanillic acid, SKF 38393, SCH 23390, social approach behavior
MeSH terms
Animals, Behavior, Animal, Dopamine, Female, Male, Nucleus Accumbens, Peromyscus, RNA, Messenger, Sex Characteristics, Social Behavior, Stress, Psychological, 3,4-Dihydroxyphenylacetic Acid, 2,3,4,5-Tetrahydro-7,8-dihydroxy-1-phenyl-1H-3-benzazepine, Receptors, Dopamine D1, Dopamine Agonists

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